• 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:
    The invention relates to chromatography. The purpose of the invention is to increase the service life and improve performance. The device comprises successively fixed guide bushings, a sealing element and a housing in which coaxial channels for the injection needle are made. The housing also has a channel serving as a valve guide, the axis of which is at an angle of 90-180 °, preferably 120-150 °, relative to the direction of movement of the injection needle. The valve guide is made coaxial with it, a recess entering the zone of the injection needle channel. The valve shut-off element is spring-loaded, cylindrical, and provided with a protrusion having an end surface extending at an angle to the injection needle channel. The protrusion of the locking member is located in the recess of the guide. The angle between the injection needle channel and the end surface of the protrusion of the locking member in the direction of the injection needle entrance is 120-150 °. The protrusion of the locking member may encompass the end surface of the ball. 4 il.
    公开号:SU1664122A3
    申请号:SU884356928
    申请日:1988-11-28
    公开日:1991-07-15
    发明作者:Герстель Эберхард
    申请人:Эберхард Герстель (DE)；
    IPC主号:
    专利说明:

    The invention relates to chromatography, in particular to devices for taking and entering samples into a chromatograph.
    The purpose of the invention is to increase the service life and improve performance.
    Figure 1 shows a head for sampling and entering a gas or liquid, section; FIG. 2 is a view along arrow A in FIG. one; FIG. 3 shows the proposed head, an embodiment; figure 4 - liners, ball and pin.
    The head for sampling and insertion of gas or liquid samples has a housing 1, a threaded section 2 onto which the guide sleeve 3 for the injection needle is screwed. The guide sleeve 3 comprises a channel 4. axial with the channel 5 of the head and serving as a guide section for the injection needle. Between the guide vupku 3 and the housing 1 is located between the channels 4 and 5 is provided with a passage through the sealing element 6, through which the injection needle passes when it is inserted, and the sealing element 6 fits tightly to the injection needle relative to the outer space.
    Channel 5 is made in the opposite end bushing 3 of the final section in the form of a stepped hole for the final segment of the sample supply chamber or
    about oh
    yu yu

    GO
    bottles or the like and partially threaded. In addition, depending on the purpose of the application, the head may have a gas nozzle 7 (Fig. 3). The head has a channel 8 located at an angle of 135 ° to the axis of the channel 5, the outer end section of which is threaded, and the opposite end is continued in a cylindrical recess 9 of smaller diameter, the recess 9 entering the zone of the injection needle channel and between the channel 5 and the recess 9, an annular surface 10 is arranged perpendicularly perpendicular to the axis of the channel 8. Channel 8 serves as a guide for the cylindrical locking member of the valve 11 provided with a coaxial protrusion 12 with a smaller diameter, thus forming a reversed to the adjoining surface 10 and parallel to it the annular surface 13 of the valve closure member 11. Adjacent to the annular surface 13, the protrusion 12 carries in its lower zone a sealing ring 14, which is held by an annular groove and mounted together with the sealing element 11 movably in the channel 8. The channel 8 is closed from the outside by a screw-shaped plug 15 with a seal 16, the plug 15 being in contact with the valve pre-stressing spring 17. Due to the pre-stressing of the spring 17 in position and locking the inlet valve, the sealing ring 14 is clamped between the surfaces 10 and 13 for the purpose of sealing, while the front side of the protrusion 12 is adjacent to the bottom of the recess 9 or is located a short distance from it so that the front side of the protrusion 12, mainly blocking the zone of entry of the channel 5 into the recess 9 from the side of the introductory part 3. When the injection needle is inserted, its end encounters an end surface of the protrusion 12 that runs obliquely to the channel 5 and pushes it against the action of the spring 17 from the channel 5 11 in the guide 8, whereby at the same time the seal 14 moves from its position adjacent to the surface 10 and from the channel 5 zone. The seal function is thus adopted by the sealing element 6.
    The gas pipe 7 enters under serving as a sealing surface of the annular surface 13 into the channel 5 and can be used, for example, to supply a gas carrier or for purging.
    The housing 1 of the valve 11 and the plug 15, as well as the guide sleeve 3, can be made of plastic. It does not require special
    Adjustments, tolerances that must be observed, are not critical.
    In the embodiment shown in FIG. 3, the channel 8 is not threaded and
    the stopper 15 together with the sealing ring 16 is inserted into the channel 8 and held therein by means of the plate 18.
    In addition, a lock nut 19 is provided at the lower end of the housing 1, held by the spring retaining ring 20. The head is then screwed through the annular flat seal 21 onto a part 22, for example a container or the like.
    With the embodiment shown in FIG. 4, an insert 23 is inserted into the recess, which has the shape of a ring with or without a bottom. The protrusion 12 of the valve body 11 contains a ball 24, which is connected to the body of the valve 11 through a threaded pin 25. Ball 24
    provided with a flat end surface 26 perpendicular to the direction of movement of the valve body 11, and interacts with an injection needle to open the inlet valve. Ball 24 and liner 23
    ground, and the ball is ground in the annular zone located rearward relative to the end surface 26, and the insert is in the zone of the free inner edge in order to provide a suitable seal. In this case, the implementation of such an arrangement is such that the insert 23 and the ball 24 are made of sapphire or ruby.
    权利要求:
    Claims (4)
    [1]
    1. Head for gas sampling and injection
    or liquids in a gas chromatograph containing successively fixed guide sleeve, sealing element and body in which coaxial channels for the injection needle are made, the body also having a channel serving as a guide for the valve, the axis of which is at an angle of 90-180 °, preferably 120-150 ° with respect to the direction of movement of the injection needle, and the valve seat is installed in the zone of the injection needle channel and the valve block is spring-loaded, characterized in that, in order to increase the service life
    0 and, in order to improve the performance characteristics, in the valve guide, a recess coaxial with it is included, entering the zone of the injection needle channel, the valve block is cylindrical and
    5 is provided with a protrusion having an end surface extending at an angle to the injection needle channel, the protrusion of the closure member being placed in the recess of the guide.
    [2]
    2. A head according to claim 1, characterized in that the angle between the injection needle channel and the end surface of the projection of the closure member in the direction of the injection needle entrance is 120-150 °.
    [3]
    3. The head according to claim 1, characterized in that the protrusion of the closure member is installed with a gap relative to the recess of the guide.
    [4]
    4. The head according to claims 1-3, characterized in that the valve guide has on the outside a threaded section for
    covered with a stopper, against which the valve is spring loaded
    5, Head on PP. 1 and 4, characterized in that the plug inserted into the valve guide is installed in contact with a plate fixed in the head housing.
    6, Golsvka on PP. 1-5, about t of l and h and shch a - so that the protrusion of the locking member is cylindrical.
    7, Head on PP. 1-6, in contrast to the fact that the protrusion of the closure member covers the ball provided with the end surface.
    FIG. 2
    4 6
    fig.Z
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1664122A3|1991-07-15|Head for sampling and feeding gas and liquid
    US5253842A|1993-10-19|Quick disconnect water valve assembly
    US3695437A|1972-10-03|Oil filter with improved anti-drainback valve
    KR840007947A|1984-12-11|Pressure relief valve
    KR900018577A|1990-12-21|Push Fluid Dispenser
    US3731880A|1973-05-08|Ball valve electromagnetic fuel injector
    KR20000068117A|2000-11-25|Fuel injection system
    JPH0783139A|1995-03-28|Equipment for fixing valve and preventing positional displacement
    US4502632A|1985-03-05|Electromagnetically actuatable valve, in particular a fuel injection valve for fuel injection systems
    US4611624A|1986-09-16|Line piercing valve assembly
    US6035697A|2000-03-14|Gas chromatograph apparatus
    US4558603A|1985-12-17|Needle assembly for introducing a carrier gas into a sample vessel
    US4476732A|1984-10-16|Septumless jet stream on-column injector for chromatography
    US3776263A|1973-12-04|Fuel cut-off lock
    RU1812996C|1993-04-30|Flow rate regulator for dropwise intravenous injection
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    US6997434B2|2006-02-14|Twist cam valve
    US4458541A|1984-07-10|Liquid sample injection valve for gas chromatographs
    US4436283A|1984-03-13|Gate valve
    US5094365A|1992-03-10|Adapter for use in tapping a container
    US5517973A|1996-05-21|Fuel pump
    FR2695166A1|1994-03-04|Emergency cut-off device for an internal combustion engine with boost injection.
    US4580722A|1986-04-08|Fuel injection nozzles
    RU2116555C1|1998-07-27|Packing valve
    SU1620755A1|1991-01-15|Closure device
    同族专利:
    公开号 | 公开日
    CN1033419A|1989-06-14|
    ES2035214T3|1993-04-16|
    EP0318705A2|1989-06-07|
    US4854181A|1989-08-08|
    EP0318705B1|1992-09-30|
    JPH01191054A|1989-08-01|
    DE3875081D1|1992-11-05|
    JPH0731171B2|1995-04-10|
    EP0318705A3|1990-08-29|
    CN1017935B|1992-08-19|
    DE8715782U1|1988-01-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3201994A|1963-02-06|1965-08-24|Beckman Instruments Inc|Fluid sampling device|
    US3566698A|1969-10-23|1971-03-02|Hamilton Co|Septumless inlet for chromatographs|
    DE2026329C3|1970-05-29|1974-05-22|Hewlett-Packard Gmbh, 7030 Boeblingen|Device for injecting liquid samples into the separation column of a liquid chromatograph|
    US3930413A|1972-12-07|1976-01-06|Caterpillar Tractor Co.|Quick release gauge fitting|
    US3858449A|1973-08-06|1975-01-07|Ernst Singer|Sample taking apparatus|
    JPS5418956Y2|1974-09-17|1979-07-14|
    JPS526316Y2|1974-11-21|1977-02-09|
    DE2604166A1|1976-02-04|1977-08-11|Hewlett Packard Gmbh|SAMPLE ENTRY DEVICE FOR LIQUID CHROMATOGRAPHS|
    JPS6311655Y2|1982-10-12|1988-04-05|
    DE3400458C2|1984-01-09|1991-05-08|Eberhard 4330 Muelheim De Gerstel|
    US4580453A|1984-11-13|1986-04-08|Taylor Julian S|Gear case oil sampler|
    DE8715782U1|1987-11-28|1988-01-14|Gerstel, Eberhard, 4330 Muelheim, De|GB2211607A|1987-10-29|1989-07-05|Cardiff Energy & Resources|Injection systems for luminometers|
    DE8715782U1|1987-11-28|1988-01-14|Gerstel, Eberhard, 4330 Muelheim, De|
    US5062310A|1990-03-01|1991-11-05|Jade Systems, Inc.|Probe inlet apparatus and method|
    DE4132358C2|1991-09-27|1996-08-29|Gerstel Gmbh|Method and device for examining gaseous starting material|
    US5379658A|1992-11-16|1995-01-10|Simmonds Precision Products, Inc.|Intrusive acoustic sensor mounting arrangement|
    NL1004496C2|1996-11-11|1998-05-14|Sgt Exploitatie Bv|Apparatus for connecting a first pipe of a very small diameter to a second pipe, an injector and a detector of a gas chromatograph provided with such a device, a cassette with a capillary gas chromatography column for cooperation with such an injector and detector and a gas chromatograph.|
    GB9623544D0|1996-11-12|1997-01-08|Micromass Ltd|Sample vial and vial closure device for use in gas analysis and method of using the same|
    AUPP432898A0|1998-06-25|1998-07-16|W.G. Goetz & Sons Limited|Improved check valve arrangement for a diagnostic test point|
    DE19902277A1|1999-01-21|2000-07-27|Lar Analytik & Umweltmestechni|Incinerator for the combustion of liquid samples|
    DE102005026585A1|2005-05-03|2006-11-09|Forschungszentrum Jülich GmbH|Method for sample introduction into modules as well as adapters|
    DE102007036612A1|2007-08-02|2009-02-05|Dimatec Analysentechnik Gmbh|Injection port for analyzers, arrangement for actuating an injection port and analyzer with an injection port|
    US9000360B2|2010-10-29|2015-04-07|Thermo Fisher Scientific Oy|System layout for an automated system for sample preparation and analysis|
    JP6041689B2|2013-01-30|2016-12-14|日本写真印刷株式会社|Gas injection joint and gas analyzer|
    CN110702457B|2019-10-11|2021-12-14|宁夏翼航智控科技有限公司|Environment protection unmanned aerial vehicle convenient to sample quality of water|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE8715782U|DE8715782U1|1987-11-28|1987-11-28|
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