• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Device and method of cleaning closed spaces. It is applicable to enclosed spaces that are used to transport products; where the enclosed spaces are delimited by internal surfaces of containers, refrigerated trailers, etc. The device is capable of performing operations to sweep debris deposited on a floor surface (8a), essentially solid waste. It also performs the wet cleaning of all the internal surfaces of the enclosed spaces and finally is able to carry out the disinfection of said internal surfaces through the application of specially formulated chemical products for that purpose. It is noted that all the cleaning phases are carried out with a single mobile applicator arc (2) in combination with the displacement of the cleaning device assembly (1a, 1b) that carries with it said mobile applicator arc (2). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2698266A1
    申请号:ES201731002
    申请日:2017-08-01
    公开日:2019-02-01
    发明作者:Puchades Yolanda Tomas
    申请人:Istobal SA；
    IPC主号:
    专利说明:

    [0001]
    [0002] DESCRIPTION
    [0003]
    [0004] Object of the invention
    [0005] The present invention relates to a device and method of cleaning closed spaces; which is applicable to enclosed spaces that are used to transport products; and where the enclosed spaces are delimited by internal surfaces of containers, refrigerated trailers, etc.
    [0006]
    [0007] The device specifically designed for this purpose and its special concept and morphology, is capable of performing the operations of sweeping debris deposited on a horizontal floor surface, mainly solid waste; wet cleaning of all internal surfaces of enclosed spaces and finally is able to carry out the disinfection of said internal surfaces through the application of specially formulated chemical products for that purpose.
    [0008]
    [0009] The device of the invention is adaptable both to mobile carriages and to telescopic movement mechanisms, such as, for example, the one described in the patent with application no. In Spain P 201730706, which is owned by the same owner as the invention in question.
    [0010]
    [0011] Technical problem to solve and background of the invention
    [0012] At present, it is usual to exhaustively clean the internal surfaces that delimit the closed spaces of containers and the like that are used to transport products; where such cleaning is carried out by means of exhaustive periodic cleaning processes and sometimes, when the type of product transported requires it, in a final phase also of cleaning, chemical disinfection is carried out to guarantee the absence of contamination or transmission risks of harmful leachate for subsequent loads in containers.
    [0013]
    [0014] Some legislations regulate the degree of disinfection under certain conditions or for the transport of products that require high levels of sanitation.
    [0015] It is a very recurrent difficulty to be able to effectively automate the whole process or treatment of the internal surfaces of the container, at least with respect to what is undoubtedly an important phase of this operation, which is none other than the necessary initial elimination of the solid waste generated by the use and transportation of the merchandise; especially those solids accumulated in the base or horizontal floor surface of said container.
    [0016]
    [0017] When, for example, fruit is transported, it is normal that on the base of the container there are accumulated remains of damaged fruit, packaging waste, etc., which must necessarily be removed before subjecting the internal surfaces of the container to the cleaning and disinfection phase. , and that currently is usually done manually.
    [0018]
    [0019] In some types of containers the different phases of sweeping, cleaning and disinfection are carried out in different locations and with different means or techniques, which even forces to move the container to the specific areas for each operation.
    [0020]
    [0021] The patent of invention with publication number EP 3015179 A1 refers to a cleaning robot for the walls and ceilings of an enclosure comprising a moving carriage and an articulated mechanism fixed to the carriage and provided with a cleaning head; wherein said articulated mechanism is configured to allow the cleaning head to access the surface of the walls and ceilings to be cleaned. The cleaning head comprises protruding gums configured to create a hermetically sealed space when resting on a surface to be cleaned; where in the interior of the cleaning surface there are areas of injection of steam under pressure, areas of movable brushes for rubbing the surface to be cleaned, and some areas of aspiration for the collection of residual water from the cleaning.
    [0022]
    [0023] The patent with publication number US 20150122288 A1 refers to a tool, method, and system for cleaning the interior of an ISO-type cargo container; wherein the tool comprises a head, a robot having a nozzle for supplying a cleaning agent, and a drive unit arranged to move the robot between the head and the interior of the container. The tool is a portable unit that can be manipulated by a truck that grabs and transports containers; where the cleaning agent is dry ice. The method comprises providing the cleaning tool; grab the head of the tool by the truck; drive the truck that transports the tool to the container to be cleaned; moving the robot inside the container by means of the drive unit; and moving the nozzle by means of the robot along a programmed path during cleaning. The system for cleaning the interior of the container is characterized in that the cleaning agent is dry ice and the robot is adapted to clean the interior of the container by means of a dry ice blast; the system also comprising the truck adapted to grip and transport the containers; and the tool is a portable unit.
    [0024]
    [0025] The patent with publication number EP 2011057249 refers to a cleaning system of the inner box comprising a support movable in a longitudinal direction X; a washing fluid supply circuit and fluid supply washing device; a rinsing fluid supply circuit and a cleaning fluid supply device. The washing fluid dispensing device comprises a nozzle washing head extending in a direction parallel to the longitudinal direction X, a movable vertical discharge chute with nozzles extending in a vertical direction perpendicular to the longitudinal direction X.
    [0026]
    [0027] The documents of the state of the art cited comprise complex mechanical-hydraulic systems or comprise simple spray devices that in no case are capable of offering the user a complete system in which the three basic stages of cleaning and disinfection are unified: a first stage of sweep of residues, deposited in a horizontal surface of soil, fundamentally solid residues, a second stage of wet cleaning with detergent and a third stage of chemical disinfection.
    [0028]
    [0029] Description of the invention
    [0030] In order to achieve the objectives and avoid the drawbacks, the invention proposes a device and method for cleaning closed spaces; wherein the cleaning device is configured to move in a longitudinal direction along a closed space of a container that is delimited by internal surfaces; wherein said internal surfaces of the closed space are cleaned by projecting at least one fluid exiting driven through nozzles; where the cleaning device rests on a floor surface forming part of the internal surfaces of the closed space of the container; and wherein the cleaning device comprises a head.
    [0031] The cleaning device further comprises at least one mobile applicator arc which is coupled to the head by an articulated connection located at an end portion of the head; wherein said mobile applicator arc includes the nozzles.
    [0032]
    [0033] The articulated connection is located in a transverse direction that is perpendicular to the longitudinal direction of displacement of the cleaning device.
    [0034]
    [0035] The rotation of the mobile applicator arc is configured so as to be able to project the liquid fluid onto all the internal surfaces of the closed space of the container: either independently on one of said internal surfaces or simultaneously on several of said internal surfaces.
    [0036]
    [0037] The mobile applicator arc is configured to rotate an angular width delimited between two extreme positions: first and second; where in the first extreme position the fluid exiting from some of the nozzles projects at least on the floor surface; and in the second extreme position of the mobile applicator arc the fluid exiting from some of the nozzles projects at least on a roof surface forming part of the internal surfaces of the closed space of the container.
    [0038]
    [0039] The fluid exiting the nozzles projected at least on the floor surface comes out in inclined directions which are not perpendicular to the floor surface of the enclosed space of the container; where the fluid projected in said inclined directions drag and sweep through a bucket effect in a backward direction to remains of the load deposited on the floor surface.
    [0040]
    [0041] In an embodiment of the invention, the mobile applicator arc is located in an inclined plane when said movable applicator arc is located in a lower position in which the fluid exiting from some of the nozzles projects at least on the floor surface; where said inclined plane is not perpendicular to the floor surface. In another lower position of the mobile applicator arch, this is located in a vertical plane.
    [0042]
    [0043] The articulated connection comprises a transverse axis and a through hole located in the end portion of the head; where a central portion of the transverse axis is engaged in the through hole of the head; and wherein said mobile applicator arc is connected to the transverse axis.
    [0044]
    [0045] In an embodiment of the invention, the mobile applicator arc comprises a U-shaped configuration that includes:
    [0046] - A crosspiece parallel to the floor surface, to a vertical front surface that delimits the depth of the enclosed space of the container and to a roof surface opposite the floor surface of the enclosed space of the container.
    [0047] - Two collateral branches that are parallel to vertical opposed surfaces of the closed space of the container.
    [0048]
    [0049] The end portion of the head projects outwardly with respect to one end of said head.
    [0050]
    [0051] The cleaning device comprises a first circuit of a first washing fluid; a second circuit of a second rinse fluid and a third circuit of a disinfectant fluid.
    [0052]
    [0053] The method of cleaning closed spaces comprises the following phases:
    [0054] - Clean the floor surface of the closed space of the container; wherein the direction of the fluid projected through some nozzles of the mobile applicator arc is a direction that is not perpendicular to said floor surface; and where in this cleaning phase at least the solid waste accumulated on the floor surface during the movement of the cleaning device is swept away and swept with a ladle effect.
    [0055] - Clean the internal surfaces of the closed space of the container by means of a fluid sprayed through the nozzles of the cleaning device.
    [0056] - Disinfect the internal surfaces of the closed space of the container by means of a fluid sprayed through the nozzles of the cleaning device.
    [0057]
    [0058] Below, in order to facilitate a better understanding of this descriptive specification and forming an integral part thereof, a series of figures are attached in which the object of the invention has been represented with an illustrative and non-limiting character.
    [0059]
    [0060] Brief description of the figures
    [0061] Figure 1.- Shows a perspective view of a truck container that includes a interior space where a device for cleaning closed spaces, object of the invention is housed. The cleaning method used is also the object of the invention.
    [0062] Figure 2 shows a view similar to the previous figure, where the cleaning device comprises a configuration different from that described to the device of figure 1.
    [0063] Figures 3a to 3c.- They show elevation views of the method of cleaning the internal surfaces of the truck container with a longitudinal path of the cleaning device along the interior space of the truck container.
    [0064] Figures 4a to 4c.- They show elevational views similar to what is shown in Figures 3a to 3c; where the path of the cleaning and disinfection device is different from that shown in said previous figures 3a to 3c.
    [0065] Figure 5a to 5c.- They represent views in profile of the container of the truck corresponding to the rear part of said truck; where some of the cleaning phases of the internal surfaces of the truck container carried out by the cleaning device are shown.
    [0066] Figure 6 .- Represents an elevation view of the cleaning device showing the method of cleaning a part of the internal surfaces of the container that are part of a vertical surface and a horizontal floor surface of the container.
    [0067] Figure 7.- Represents a view similar to that shown in figure 6, where we have a phase of cleaning the horizontal floor surface in which the waste is removed and dragged by the device of the invention.
    [0068] Figure 8 shows a perspective view of the cleaning device.
    [0069] Figure 9.- Shows a profile view of the container.
    [0070] Figure 10.- Shows an exploded perspective view of a mobile applicator arc that is coupled to a head by means of an articulated connection.
    [0071]
    [0072] Description of an embodiment of the invention
    [0073] Considering the numbering adopted in the figures, the cleaning device 1a, 1b for closed spaces comprises at least one mobile applicator arc 2 and a head 3 connected to a structure with wheels 4; wherein the mobile applicator arc 2 is coupled to the head 3 by an articulated connection 5; and wherein the cleaning device 1a, 1b is configured to move along the closed space of a container 6 of a truck or the like.
    [0074]
    [0075] The mobile applicator arc 2 is configured to be able to rotate with respect to the head 3 by means of the articulated connection 5 comprising a transverse axis 5a and an orifice cross member 5b located at an end portion 3a of the head 3; where a central portion of the transverse axis is fitted in the through hole 5b of the head 3.
    [0076]
    [0077] The mobile applicator arc 2 supports nozzles 7 connected to fluid circuits through which the pressurized fluid that reaches said nozzles 7 of the mobile applicator arc 2 circulates; where during the operation of the cleaning device 1a, 1b, the fluid is driven by the nozzles 7 projecting on internal surfaces to be cleaned that delimit the closed space of the container 6; and where the cleaning device 1a, 1b rests on a horizontal floor surface 8a which also serves as a means for moving the cleaning device 1a, 1b facilitated by the wheels 4 coupled to said cleaning device 1a, 1b.
    [0078]
    [0079] In the embodiment shown in the figures, the closed space of the container 6 comprises a prismatic configuration delimited by the different internal surfaces: the floor surface 8a; a roof surface 8b opposite the floor surface 6a; two opposed vertical surfaces 8c facing each other and a vertical front surface 8d delimiting the depth of the closed space of the container 4.
    [0080]
    [0081] The mobile applicator arc 2 has a U-shaped configuration according to the passage section of the closed space of the container 6, so that in the embodiment shown in the figures, the mobile applicator arc 2 comprises a crosspiece 2a parallel to the floor surface 8a, front surface 8d and roof surface 8d of the enclosure of the container 6; and two collateral branches 2b that are parallel to the opposing surfaces 8c of the closed space of the container 6.
    [0082]
    [0083] The transverse axis 5a is attached to the ends of the mobile applicator arc 2, so that the mobile applicator arc 2 can rotate independently and relative to the translation movement of the cleaning device 1a, 1b along the enclosed space of the applicator. container 6. It should further be noted that in the embodiment shown in the figures, the transverse axis 5a is parallel to the crosspiece 2a of the mobile applicator arc 2.
    [0084]
    [0085] It is emphasized that one of the fundamental functions of the cleaning device 1a, 1b is to sweep the floor surface 8a effectively as shown more clearly in Figure 7; where, after emptying a load of the container 6, such as a fruit load, remains of the said product are deposited on said floor surface 8a. load, on all solid remains.
    [0086]
    [0087] Thus, to carry out the sweeping of the floor surface 8a, the mobile applicator arc 2 is placed in a static lower position in which the nozzles 7 of the cross member 2a of said mobile applicator arc 2 project their jets of liquid fluid into inclined directions 10 with respect to the floor surface 8a; where the jets of fluid projected in said inclined directions 10 drag and sweep by a spoon effect in a backward direction 15 to the remains of the charge deposited on the floor surface 8a.
    [0088]
    [0089] The inclined directions 10 of the fluid jets are not perpendicular to said floor surface 8a, but said inclined directions 10 of the projections of the fluid jets have first components 10a that are perpendicular to the floor surface 8a and a second ones components 10b which are parallel to the floor surfaces 8; where these second component 10b of the projections of the fluid jets essentially entrain the remains of the charge deposited on the floor surface 8a when the device moves simultaneously within the closed space of the container 6.
    [0090]
    [0091] The lower static position of the mobile applicator arc 2 is possible because the articulated connection 5 is located at the end portion 3a of the head 3 projecting outwards with respect to the rest of said head 3. The mobile applicator arc 2 can be located at a corresponding lower position with a vertical plane as shown in figure 7, or in an inclined plane 9 as shown in figure 6.
    [0092]
    [0093] The projection of the fluid jets through the nozzles 7 can be selected so that said jets of fluid exit from a part of the mobile applicator arc 2 or from all the nozzles of said movable applicator arc 2, so that there are different possibilities for cleaning and disinfecting the internal surfaces of the enclosed space of the container 6; so that figures 5a, 5b, 5c, 6 and 7 show some of the cleaning phases and how the cleaning of the different surfaces of the closed space of the container 6 can be independent; where during the projection of the fluid jets on the internal surfaces of the closed space of the container 6, the mobile device 1a, 1b can be stopped or moved simultaneously; and likewise the mobile applicator arc 2 may be rotating or standing.
    [0094] It should be noted that the projection of the fluid jets with the inclined directions with the sweeping and spoon effect can be applied to all the internal surfaces that delimit the closed space of the container 6.
    [0095]
    [0096] In all cases, in a final phase during the cleaning process, the floor surface 8a is cleaned because when the rest of the internal surfaces 8b, 8c, 8d are cleaned, all the debris detonated is dragged by the projection of the surfaces. jets of fluid and finally falls downwards by gravity until reaching the floor surface 8a.
    [0097]
    [0098] With the device of the invention it is possible to unify the three basic stages of cleaning and disinfection: a first step of sweeping waste, deposited on the floor surface 8a, mainly solid waste, a second stage of wet cleaning with detergent and a third stage of chemical disinfection.
    [0099]
    [0100] With the device of the invention all the cleaning phases of the inner surfaces of the container 6 can be carried out in a single cleaning device 1a, 1b with mobility in a longitudinal direction; wherein said cleaning device 1a, 1b is linked to a means of displacement along the entire longitudinal extension of said container; and wherein said displacement means comprises, for example, a system as described in the patent with publication number P 201730706 and in figure 1; or as the one shown in figure 2 where a robot vehicle is represented.
    [0101]
    [0102] A cleaning phase of the container comprises the removal of the solid residues present on the floor surface 8a by projecting the liquid fluid under pressure as water, as shown in figures 6 and 7, where said water projection defines a path as a spoon or arch that exceeds the vertical once applied to the floor surface 8a, in order to achieve a mechanical effect of dragging said solids when the cleaning device 1a, 1b moves to a rear of the opposite container to the vertical front surface 8d delimiting the depth of the closed space of the container 6.
    [0103]
    [0104] In another phase of cleaning the container, a new phase of pressure spraying with water mixed with a detergent product is carried out to carry out the washing of all the internal surfaces and a subsequent rinsing, to finish with a new phase of application by impregnation, nebulization of a disinfectant product acting by contact with the internal surfaces 8a, 8b. 8c, 8d of the enclosed space of the container 6.
    [0105]
    [0106] The pressure parameters of liquid fluid application, times, liquid fluid temperatures, etc .; they are specifically adapted to each specific condition of the container 6 to be treated.
    [0107]
    [0108] The cleaning protocol can be programmed electronically according to each need, and even define standard programs that define different passes, speeds of advance, etc.
    [0109]
    [0110] The entire cleaning device 1a, 1b will be associated with electronic and computerized management means, although it is possible to manually control the cleaning device 1a, 1b. Said electronic and computer means also control the rotation of the mobile applicator arc 2, the displacement of the cleaning device 1a, 1b and the management of the different fluids; These functions will be carried out by the corresponding actuators.
    [0111]
    [0112] In practice and taking into account the differences in the morphology of the projection nozzles 7 necessary to apply the different products (pressurized water for the sweep, water and detergent for cleaning or chemical disinfectant), on the head 3 can mount so many mobile applicator arches 2 as necessary, although in the embodiment shown in the figures the device of the invention only includes a mobile applicator arc 2.
    [0113]
    [0114] It is emphasized that the head 3 includes the end portion 3a for keeping the transverse pivot axis 5b outwardly to fundamentally allow in the sweeping phase of the floor surface 8a the projections of the liquid fluid jets to be placed in the inclined directions 10 that are not perpendicular to said floor surface 8a; wherein said inclined directions 10 have the second components 10b of the projections of the fluid jets that essentially drag the remains of the load deposited on the floor surface 8a when the device moves within the closed space of the container 6 keeping the applicator arc mobile 2 in the inclined position as shown in figure 7.
    [0115] The angle of incidence and the contact moment of the liquid fluid projection on the floor surface 8a is also important to control, as shown in the figures.
    [0116]
    [0117] Thus, in the figures it can be seen how the liquid fluid exiting the nozzles 7 advances angularly on the internal surfaces of the closed space of the container 6, so that a drag effect is produced which prevents the accumulation of dirt, on all in the corner areas 11 formed by the confluence of the different planes of the internal surfaces 8a, 8b, 8c, 8d.
    [0118]
    [0119] On the other hand, during the cleaning process, the articulated connection 5 performs a linear path 13, while the crossbar 2a of the mobile applicator arch 2 performs a path 12 formed by a path having two parallel sections 12a, 12b above and per below the linear path 13 of the articulated connection 5, respectively; and a curved return section 12c joining the two parallel sections 12a, 12b; wherein said return section 12c is located in an area close to the front surface 8d of the closed space of the container 6; all of this as shown in Figures 3a, 3b, 3c, 4a and 4b.
    [0120]
    [0121] In another embodiment as shown in figure 4c, the articulated connection 5 performs the same linear path 13 as described in the previous paragraph, while the crosspiece 2a of the mobile applicator arch 2 performs route 14 formed by a path having two sections parallels 14a, 14b that are below the linear path 13 of the articulated connection 5; and a return section 14c joining both parallel sections 14a, 14b; wherein said return section 14c is located in an area close to the front surface 8d of the closed space of the container 6; and where the return section 14c is located above the linear path 13.
    [0122]
    [0123] Obviously during the route of the cleaning device 1a, 1b along the closed space of the container 6 and with the rotary movement of the mobile applicator arc 2, simultaneously the jets of liquid fluid projected against the internal surfaces 8a, 8b leave the nozzles 7 at the same time. , 8c, 8d to be cleaned that delimit the closed space of the container 6; wherein the rotary movement of the mobile applicator arc 2 has an angular amplitude that can be greater than 180 °, so that in an extreme position of the mobile applicator arc 2 the nozzles 7 of its crosspiece 2a project the liquid fluid on the roof surface 8b. while in another extreme position of the mobile applicator arc 2 the nozzles 7 of its crosspiece 2a project the liquid fluid on the floor surface 8a, so that the combined movement of rotation of the mobile applicator arc 2 and displacement of the cleaning device 1a, 1b, allows to perform an effective sweep of the accumulated waste on the floor surface 8a, especially solid waste.
    [0124]
    [0125] On the other hand, although in the embodiment of the invention shown in the figures, the cleaning device 1a, 1b includes a single mobile applicator arc 2, it is also possible to include several mobile applicator arches 2 on the head 3 as shown in FIG. referred to above.
    [0126]
    [0127] The movable applicator arc 2 can be mounted on the cleaning device 1a which includes a system of telescopic guides as described in the patent P 201730706 and figure 1, or on the cleaning device 1b formed by a robot-like carriage as shown in FIG. shows in figure 2.
    [0128]
    [0129] The cleaning device 1a, 1b makes it possible to clean the different internal surfaces independently and also jointly.
    权利要求:
    Claims (9)
    [1]
    1. - Device for cleaning closed spaces , which is configured to move in a longitudinal direction along a closed space of a container (6) that is delimited by internal surfaces; wherein said internal surfaces of the closed space are cleaned by the projection of at least one fluid exiting driven through nozzles (7); wherein the cleaning device (1a, 1b) rests on a floor surface (8a) that forms part of the internal surfaces of the enclosed space of the container (6); and wherein the cleaning device (1a, 1b) comprises a head (3); characterized in that:
    - comprises at least one mobile applicator arc (2) which is coupled to the head (3) by means of an articulated connection (5) located at an end portion (3a) of the head (3); wherein said mobile applicator arc (2) includes the nozzles (7);
    - the articulated connection (5) is located in a transverse direction that is perpendicular to the longitudinal direction of displacement of the cleaning device (1a, 1b);
    wherein the rotation of the mobile applicator arc (2) is configured to be able to project the fluid on all the internal surfaces of the closed space of the container (6): either independently on one of said internal surfaces or simultaneously on several of said internal surfaces.
    [2]
    2. - Device for cleaning closed spaces , according to claim 1, characterized in that the mobile applicator arc (2) is configured to rotate an angular amplitude delimited between two extreme positions: first and second; where in the first extreme position the fluid exiting from some of the nozzles (7) projects at least on the floor surface (8a) to draw at least solid residues; and in the second extreme position of the mobile applicator bow (2) the fluid exiting some of the nozzles (7) projects at least on a roof surface (8b) that forms part of the internal surfaces of the enclosed space of the container ( 6).
    [3]
    3. - Device for cleaning closed spaces , according to any one of the preceding claims, characterized in that the fluid exiting the nozzles (7) projected at least on the floor surface (8a), exits in some directions inclined (10) that are not perpendicular to said floor surface (8a) of the closed space of the container (6); where the fluid projected in said inclined directions (10) drag and sweep through a ladle effect in a backward direction (15) to some remains of the load deposited on the floor surface (8a).
    [4]
    4. - Device for cleaning closed spaces , according to any one of the preceding claims, characterized in that the articulated connection (5) comprises a transverse axis (5a) and a through hole (5b) located in the end portion (3a) of the head (3); where a central portion of the transverse axis (5a) is fitted in the through hole (5b) of the head (3).
    [5]
    5. - Device for cleaning closed spaces , according to claim 4, characterized in that the mobile applicator arc (2) is connected to the transverse axis (5a).
    [6]
    6. - Device for cleaning closed spaces , according to any one of the preceding claims, characterized in that the mobile applicator arc (2) comprises a U-shaped configuration that includes:
    - a crossbar (2a) parallel to the floor surface (8a), to a vertical front surface (8d) that delimits the depth of the enclosed space of the container (6) and to a roof surface (8b) opposite the floor surface (8a) of the closed space of the container (6);
    - two collateral branches (2b) which are parallel to vertical opposing surfaces (8c) of the closed space of the container (6).
    [7]
    7. - Device for cleaning closed spaces , according to any one of the preceding claims, characterized in that the end portion (3a) of the head (3) protrudes outwardly with respect to an end of said head (3).
    [8]
    8. - Device for cleaning closed spaces , according to any one of the preceding claims, characterized in that it comprises a first circuit of a first washing fluid; a second circuit of a second rinse fluid and a third circuit of a disinfectant fluid.
    [9]
    9. - Method for cleaning closed spaces , according to any one of the preceding claims, characterized in that it comprises the phases:
    - cleaning the floor surface (8a) of the enclosed space of the container (6); wherein the direction of the fluid projected through some nozzles (7) of the mobile applicator arc (2) is a direction that is not perpendicular to said floor surface (8a); and where in this cleaning phase, at least the solid waste accumulated on the floor surface (8a) during the movement of the cleaning device (1a, 1b) is swept away and swept with a ladle effect;
    - cleaning the internal surfaces of the closed space of the container (6) by means of a fluid projected through the nozzles (7) of the cleaning device (1a, 1b);
    - disinfecting the internal surfaces of the closed space of the container (6) by means of a fluid projected through the nozzles (7) of the cleaning device (1a, 1b).
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    同族专利:
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    引用文献:
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