• 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:
    Fixing for sections of oval duct that allows joining two sections (1) of duct by: a rigid frame (2) arranged along the entire perimeter of the mouth of each facing section (1), formed by an "L" section element, with a first arm inside the section (1) and a second perpendicular arm to its perimeter that defines a plane of contact between frames (2); an open "V" shaped strip (5), arranged on the outside of the frames (2) and hugging them, formed by two or more parts (51), preferably two equal ones in "J", joined by two closures (6) tightened in a direction contained in the contact plane between frames (2). The preferred closure (6) is formed by an omega (7) at a free end of a part (51) with a through hole pierced by a rod (8) having a threaded free end where a fastener nut of the closure is arranged (6). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2726399A1
    申请号:ES201830333
    申请日:2018-04-04
    公开日:2019-10-04
    发明作者:Navarro Josep Ramisa
    申请人:Navarro Josep Ramisa；
    IPC主号:
    专利说明:

    [0001]
    [0002] Union for sections of oval section conduit
    [0003]
    [0004] SECTOR OF THE TECHNIQUE
    [0005]
    [0006] The present invention relates to a joint for sections of oval-shaped ventilation ducts, which allows for a tight, safe and simple connection of ventilation duct sections.
    [0007]
    [0008] It is applicable in the field of facilities for shops, garages, any type of building, ships, etc.
    [0009]
    [0010] STATE OF THE TECHNIQUE
    [0011]
    [0012] Building ventilation systems comprise ducts, generally of rectangular or circular section, that allow the movement of air renewal and the extraction of fumes, dust, sawdust and any other loose matter. For example, in the case of industrial kitchens, smoke usually carries fats or organic matter. In the case of a sawdust sawmill ...
    [0013]
    [0014] As opposed to the option of installing rectangular ducts (due to low height availability), there is the advantage of using "oval" ducts, which in the sector should be interpreted as ducts with two parallel straight bases and two semi-circular sides at their ends, leaving a completely convex shape.This solution offers the combined advantages of circular (less loss of load) and rectangular shapes (better coupling to the ceiling, reducing the affected space).
    [0015]
    [0016] However, the solutions used to join the different sections of rectangular or circular duct are not suitable for oval ducts, due to incompatibility of conditions.
    [0017]
    [0018] For example, methods are known that incorporate a frame in both mouths, which are then screwed. This solution requires a high number of screws, which are generally not accessible when mounted on the ceiling.
    [0019] The applicant does not know any system equivalent to the invention.
    [0020]
    [0021] BRIEF EXPLANATION OF THE INVENTION
    [0022]
    [0023] The invention consists of a fixation for oval duct sections according to the claims.
    [0024]
    [0025] It allows joining two sections of conduit by means of a rigid frame arranged throughout the perimeter of the mouth of each section facing. This frame is formed by an "L" section element, with a first arm inside the section and a second arm perpendicular to its perimeter that forms a plane of contact between frames. The frame can comprise folds, projections, or any another type of element that gives it rigidity.
    [0026]
    [0027] This arrangement of the closures allows the ducts attached to the ceiling to be mounted, achieving a novel seal, which substantially improves all that exists.
    [0028]
    [0029] The fixation also comprises a "V" shaped strip (that is, with divergent arms, with or without central flat base), arranged outside the frames and hugging them. This strip is formed by two or more parts joined by two tightening closures in a direction contained in the contact plane between frames, that is, the movement of the closing elements will be parallel to the plane that has been defined, generally parallel to the stringers, thus being accessible from outside the duct and not from a frontal part (inaccessible due to the presence of the conduit itself).
    [0030]
    [0031] A preferred type of closure is formed by an omega disposed at a free end of a part of the strip and with a through hole. This through hole is crossed by a rod, in the defined contact plane (parallel to the strip). The rod is fixed to the free end of the contiguous part of the strip and has a threaded free end where a clamping nut of the closure is arranged. The movement of rotation of the nut advances this in the plane of contact between frames, so that the different parts of the strip approach each other, tightening the frames thanks to the divergent walls of the "V".
    [0032] laughing emene a ra is formed by peers in form e, which by or year imply closures in opposite corners of the frame, to properly distribute the tightening of the closure throughout the perimeter of the joint. In turn, the presence of only two parts implies that only two closures will have to be tightened.
    [0033]
    [0034] To increase the tightness, one or more clamps can be applied to the frames. These preferably comprise two clamping ends and a central section, of great amplitude, which in use position is far from the strip and the frame to ensure that contact only occurs at the clamping ends
    [0035]
    [0036] The frame can be a single body or be formed by several elements, such as a series of stringers and curves joined together by rods introduced as a pressure guide in the gaps formed by folds of the arms of the frame.
    [0037]
    [0038] The fixing is complemented by a sealing gasket located internally in the flat base of the "V" of the strip or, less preferably, in both second arms of the frame.
    [0039]
    [0040] Other variants will be commented on in other points of the memory.
    [0041]
    [0042] DESCRIPTION OF THE DRAWINGS
    [0043]
    [0044] For a better understanding of the invention, the following figures are included.
    [0045]
    [0046] Figure number 1.- represents a perspective view of one of the ways of making the frame.
    [0047]
    [0048] Figure 2.- represents a section of the frame, the strip and the clamp, in an exemplary embodiment.
    [0049]
    [0050] Figure 3.- represents a perspective view of an example of part of strip, with the elements of the closure exploded.
    [0051]
    [0052] Figure 4.- represents a scheme of installation of the duct in an ad-hoc hole and the points from where the fastening of the closures is carried out.
    [0053] EMBODIMENTS OF THE INVENTION
    [0054]
    [0055] Next, an embodiment of the invention will be briefly described as an illustrative and non-limiting example thereof.
    [0056]
    [0057] The joining system of two consecutive sections (1) of a conduit shown in the figures first comprises two rigid frames (2), one in each section (1), of general section in "L" and with folds or other reinforcements to increase its stiffness. At least one of the folds or reinforcements will generate a gap (3). The arms of the "L" will have two functions. A first arm will be inserted into the mouth of the section (1), preferably with the addition of sealant, and the second arm will be disposed outside the mouth, in a flat position, protruding outward from the section. Thus it forms a plane of contact between the frames (2) of both sections. This second arm is the one that will rest on the frame (2) of the adjacent section (1).
    [0058]
    [0059] Preferably, the frames (2) will comprise four parts: two stringers (21), straight, and two curves (22) semicircular. To form an oval frame (2), both types of part will alternate.
    [0060]
    [0061] The connection between the different parts of the frame (2) can be carried out in several ways. In any case, the preferred form is shown in Figure 1. In it, a rod (4) can be seen that is inserted into the aligned holes (3) of the stringers (21) and the curves (22). This connection may be weak, since it will then be reinforced by the other fasteners, although it is preferred that each joint of the frame parts (2) be sufficiently supported during their manipulation and insertion in the mouth of each section (1) .
    [0062]
    [0063] The fact of dividing the frame (2) into several parts allows the length of the stringers (21) and the radii of the curves (22) to be independent. However, the frames (2) can be manufactured directly with the final dimensions, although logistics is complicated and versatility is lost. The frames (2) are fastened to the sheet of the section mouth (1) by any conventional system: spot welding, presumption, rivets, self-tapping screws, etc.
    [0064] Once the frame (2) is arranged in the mouth of each section (1) of the duct, and these are facing each other, a strip (5) is placed on both frames (2) in a general section of open "V", that is to say divergent arms instead of parallel (figures 2 and 3.) This strip (5) will have a sealing gasket (52) incorporated, preferably in a flat base that joins the arms of the "V". Another, less preferred, place of sealing gaskets is on the facing faces of the frames (2) of each section (1).
    [0065]
    [0066] The strip (5) will have a shape according to the perimeter of the duct, in this case with the outer shape of the frame (2). The strip (5), in the final position of use, will be arranged outside the frame (2), but in a disassembled position the straight bases will be somewhat longer than the stringers (21). In this way, the strip (5) can be divided into two parts (51) that embrace the frame (2). Preferably, both parts (51) will have a "J" shape and will have clamping systems that make closures (6) at their free ends for joining with the other part (51).
    [0067]
    [0068] The preferred form of the closure (6) is shown in Figure 3. It comprises an omega (7) near a free end of a part (51), which has a through hole parallel to the crossbar (21) or the curve (22) of the frame (2), and a rod (8), with the threaded free end, fixed to the other free end of the adjacent part (51). This rod (8) is also contained in the "plane" formed by the strip (5) or the frame (2). For the final connection and locking of the closure (6), the rod (8) is inserted into the hole through the omega (7) and tighten with a nut, approaching both elements and, correspondingly, closing the strip (5) in "V" on the frame. Preferably, the free ends of each part of the strip (5) will overlap
    [0069]
    [0070] As you can see, the definitive block has been made with the tightening of two single nuts, and both in the plane formed by the frame or the strip, so it can be easily accessed from the side, even with the conduit fixed to a short time. roof distance (figure 4).
    [0071]
    [0072] The strip (5) can comprise any method of fixing braces that hang from the ceiling. For example, rings at the midpoints of the curved area, which will coincide with the maximum width of the duct, from which it will be suspended. These rings may be similar to the omega (7) cited.
    [0073] In order to erase a few of them when they are especially hard (if evacuation ducts), one or more clamps (9) can be placed on the strip (5). An example of this clamp (9) is shown in Figure 2. It is appreciated that the clamp (9) of the figure comprises two clamping ends (91) and a central section (92) that provides flexibility. It is convenient that the effort made by the clamp is practically parallel to the contact surface, as it is carried out by the clamping ends (91) and the central section (92). The length or number of clamps (9) depends on the intended use (type of fluid, pressure ...) and the dimensions of the duct section.
    [0074]
    [0075] The assembly of the conduit is very simple, even when it is attached to the ceiling: Since the union of the joint is only done by tightening two nuts and only one is left between the conduit and the ceiling, a tubular wrench with extension is sufficient to be able to operate transversely from the accessible side of the duct. Moreover, it is possible to make the stems (8) oriented towards the outside of the conduit to make the nuts more accessible.
    [0076]
    [0077] The pressure pliers (9) of the upper part can be placed by prying on the strip (5) with the same bar of the tubular wrench with extension.
    权利要求:
    Claims (1)
    [0001]
    1- Fixing for sections of oval conduit, of the type that comprises two flat bases and two curved sides, and which allows two sections (1) of conduit to be joined characterized by comprising:
    a rigid frame (2) arranged along the entire perimeter of the mouth of each facing section (1), formed by an "L" section element, with a first arm inside the section (1) and a second perpendicular arm to its perimeter that defines a plane of contact between frames (2);
    an open "V" shaped strip (5), arranged on the outside of the frames (2) and hugging them, the strip (5) being formed by two or more parts (51) joined by separate fasteners (6) in an address contained in the contact plane between frames (2).
    2- Fixing according to claim 1, whose strip (5) is formed by two parts (51) in the form of "J".
    3- Fixing, according to claim 1, comprising one or more clamps (9) for tightening the frames (2), comprising two clamping ends (91) and a central section (92) which in remote use position is remote of the strip (5) and of the frame (2).
    4- Fixing, according to claim 1, whose frame (2) is formed by a series of stringers (21) and curves (22) joined together by short rods (4) inserted in recesses (3) formed in folds of the arms of the frame (2).
    5- Fixation according to claim 1, wherein each closure (6) is formed by:
    an omega (7) disposed at a free end of a part (51) of the strip (5) with a through hole pierced by
    a rod (8) parallel to the strip (5) and fixed to the free end of the contiguous part (51) of the strip (5) and having a threaded free end where a locking nut of the closure (6) is arranged.
    6- Fixing according to claim 1, which comprises a seal in the flat base of the "V" of the strip (5).
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    同族专利:
    公开号 | 公开日
    ES2726399B2|2020-03-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0458062A2|1988-06-10|1991-11-27|Ductmate Industries, Inc.|Circular duct connection|
    ES2029139T3|1989-01-19|1992-07-16|Metu-System Meinig Kg|BUTT JOINT BETWEEN TWO ELONGATED OVAL SHEET TUBE SECTIONS.|
    US20020094233A1|1999-12-02|2002-07-18|Ovalformer Llc|Curling device for forming circular and other flanged shaped connectors and other members for use in joining duct work and other industrial applications, and HVAC flange machine|
    ES2342729T3|2005-05-06|2010-07-13|Metu Meinig Ag|CLAMPING RING FOR THE CONNECTION OF SLIM WALL TUBES.|
    法律状态:
    2019-10-04| BA2A| Patent application published|Ref document number: 2726399 Country of ref document: ES Kind code of ref document: A1 Effective date: 20191004 |
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201830333A|ES2726399B2|2018-04-04|2018-04-04|Union for oval section duct sections|ES201830333A| ES2726399B2|2018-04-04|2018-04-04|Union for oval section duct sections|
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