CN114324755A - Air channel connection switching needle device and air channel connection system - Google Patents
Air channel connection switching needle device and air channel connection system Download PDFInfo
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- CN114324755A CN114324755A CN202111621701.3A CN202111621701A CN114324755A CN 114324755 A CN114324755 A CN 114324755A CN 202111621701 A CN202111621701 A CN 202111621701A CN 114324755 A CN114324755 A CN 114324755A
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- 238000001514 detection method Methods 0.000 claims abstract description 47
- 238000012546 transfer Methods 0.000 claims description 8
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 4
- 229920002530 polyetherether ketone Polymers 0.000 claims description 4
- 229920002620 polyvinyl fluoride Polymers 0.000 claims description 4
- 239000004812 Fluorinated ethylene propylene Substances 0.000 claims description 3
- 239000002033 PVDF binder Substances 0.000 claims description 3
- 229920009441 perflouroethylene propylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004813 Perfluoroalkoxy alkane Substances 0.000 claims description 2
- 229920011301 perfluoro alkoxyl alkane Polymers 0.000 claims description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 2
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a gas circuit connection adapter needle device, which comprises a gas circuit pipe and a fixing part coated on the periphery of the gas circuit pipe; the fixing part comprises an air inlet end and an air outlet end; the gas outlet end is provided with a threaded hole which is used for being connected with gas detection equipment; the air inlet end is tubular, and the outer wall of the air inlet end is provided with a clamping block which is used for being connected with the air collecting device; the gas path pipe is used for conveying the gas to be detected of the gas collecting device to the gas detection equipment. According to the gas path connection adapter needle device and the gas path connection adapter needle system, the gas path pipe is coated with the fixing part, the gas inlet end of the fixing part is hermetically connected with the gas collecting device, and the gas outlet end of the fixing part is connected with the gas detection equipment, so that the gas to be detected in the gas collecting device is tightly matched with the gas detection equipment, the gas tightness of sample introduction is guaranteed, and meanwhile, the convenient operation of detection is realized. In addition, the air inlet end can be correspondingly designed according to the type of the interface of the gas collecting device, so that the disassembly and the replacement are more convenient, and the cost and the time of the test are saved.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of gas detection, in particular to a gas path connection switching needle device and a gas path connection system.
[ background of the invention ]
With the development of detection industry, gas detection plays an increasingly important role in medical and industrial production, and whether patients' conditions and industrial operation environments are safe or not is confirmed by monitoring patient exhaled air or VOC (volatile organic compounds) gas in dangerous industrial environments, so that production and safety of patients, enterprises and staff are guaranteed. However, in the existing gas detection process, the problems of complicated sample gas transfer operation, sample delivery detection gas pollution, leakage and the like exist, so that the detection accuracy and the health of delivery detection and testing personnel are seriously influenced. Therefore, it is necessary to strictly ensure that the gas is not polluted in the detection process, and to improve the detection efficiency.
In view of the above, it is desirable to provide an air channel connection transfer needle device and an air channel connection system to overcome the above-mentioned drawbacks.
[ summary of the invention ]
The invention aims to provide a gas path connecting transfer needle device and a gas path connecting system, and aims to solve the problems of complicated sample gas transfer operation, sample feeding detection gas pollution and leakage in the existing gas detection process, the detection accuracy and the health of delivery detection and testing personnel, and the detection efficiency is improved.
In order to achieve the above object, the present invention provides an air passage connection transfer needle device, including an air passage tube and a fixing portion coated around the air passage tube; the fixing part comprises an air inlet end and an air outlet end; the gas outlet end is provided with a threaded hole which is used for being connected with gas detection equipment; the air inlet end is tubular, a clamping block is arranged on the outer wall of the air inlet end, and the clamping block is used for being connected with the air collecting device; the gas path pipe is used for conveying the gas to be detected of the gas collecting device to the gas detection equipment.
In a preferred embodiment, the fixture block is a pagoda-shaped bulge which is arranged around the air inlet end; the pagoda-shaped bulge is used for being in interference fastening connection with the gas collecting device.
In a preferred embodiment, the pipe diameter of the gas inlet end is continuously reduced from the side close to the gas outlet end to the side far away from the gas outlet end; the number of the pagoda-shaped bulges is multiple, and the pagoda-shaped bulges are arranged at the air inlet end at intervals in parallel.
In a preferred embodiment, the inner diameter of the gas path pipe is increased at a side close to the gas outlet end to form a guide part.
In a preferred embodiment, the material of the gas line tube and the fixing portion is one or more of PEEK, PVF, PVDF, PTFE, FEP, and PFA.
The invention also provides a gas path connecting system, which comprises the gas path connecting switching needle device, gas detection equipment and a gas collecting device in any one of the above embodiments; the gas detection equipment is hermetically connected with the gas outlet end, and the gas collection device is hermetically connected with the gas inlet end; and the gas pipeline pipe conveys the gas to be detected of the gas collecting device to the gas detection equipment.
In a preferred embodiment, the gas collection means comprises a valve; the air inlet end is hermetically connected with the valve.
In a preferred embodiment, the shape and size of the inlet end is adapted to the valve.
According to the gas path connection adapter needle device and the gas path connection adapter needle system, the gas path pipe is coated with the fixing part, the gas inlet end of the fixing part is hermetically connected with the gas collecting device, and the gas outlet end of the fixing part is connected with the gas detection equipment, so that the gas to be detected in the gas collecting device is tightly matched with the gas detection equipment, the gas tightness of sample introduction is guaranteed, and meanwhile, the convenient operation of detection is realized. In addition, the air inlet end can be correspondingly designed according to the type of the interface of the gas collecting device, so that the disassembly and the replacement are more convenient, and the cost and the time of the test are saved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of a gas circuit connection transfer needle device provided by the present invention;
fig. 2 is a schematic structural diagram of the pneumatic connection system shown in fig. 1.
Reference numbers in the figures: 100. the air path is connected with the adapter needle device; 101. a gas detection device; 102. a gas collection device; 103. a valve; 200. a gas circuit connecting system; 10. an air passage pipe; 11. a guide portion; 20. a fixed part; 21. an air inlet end; 22. an air outlet end; 23. and (7) clamping blocks.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantageous effects of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
Example one
In the embodiment of the present invention, an air path connection adapter needle device 100 is provided, and is used to introduce a gas to be detected collected by a gas collection device 102 into a gas detection device 101, so as to ensure the gas tightness of the gas to be detected when introduced, and avoid the situations of pollution, leakage, and the like when the gas to be detected is sampled.
As shown in fig. 1 to 2, the air path connection adapter 100 includes an air path tube 10 and a fixing portion 20 wrapped around the air path tube 10. The gas path pipe 10 is fixed inside the fixing portion 20, and the gas path pipe 10 is used for conducting two ends to convey the gas to be detected of the gas collecting device 102 to the gas detecting device 101. The fixing portion 20 serves to provide support to the airway tube 10.
Specifically, the fixing portion 20 includes an air inlet end 21 and an air outlet end 22.
The outlet end 22 extends towards the blind end to form a flange, and a threaded hole (not shown) is formed in the flange. The threaded hole is used for being connected with an air inlet interface of the gas detection device 101, so that the air outlet end 22 is hermetically connected with the air inlet interface of the gas detection device 101, and the gas path pipe 10 is communicated with the gas detection device 101. Further, the inner diameter of the air passage pipe 10 on the side close to the air outlet end 22 is increased to form a guide portion 11, that is, the guide portion 11 is shaped like a bell mouth, so that the air inlet port of the gas detection device 101 can be conveniently inserted into the guide portion 11 of the air passage pipe 10, and the air passage can be conveniently sealed.
The air inlet 21 is tubular and is inserted into the air outlet of the air collector 102. The outer wall of the air inlet end 21 is provided with a clamping block 23. The fixture block 23 is used for connecting with the gas collecting device 102 by interference fastening. Specifically, the latch 23 is a pagoda-shaped protrusion structure surrounding the air inlet end 21. The cross section of the pagoda-shaped convex structure can be in a semicircular shape, a triangular shape and other irregular shapes. The pagoda-shaped protruding structure is used for being tightly connected with the gas collecting device 102 in an interference manner. Further, the pagoda-shaped convex structure is annular and is wound on the air inlet end 21.
Further, the pipe diameter of the air inlet end 21 decreases from the side close to the air outlet end 22 to the side far from the air outlet end 22, that is, the air inlet end 21 is in a truncated cone shape. The fixture blocks 23 of the pagoda-shaped protruding structure are arranged in a plurality of numbers and are arranged at the air inlet end 21 at intervals in parallel, so that the diameters of the pagoda-shaped protruding structures are sequentially increased or reduced, the air outlet interface shapes of different gas collecting devices 102 can be adapted to be matched, the disassembly and replacement are convenient, and the cost and time of the test are saved.
Further, the material of the air tube 10 and the fixing portion 20 is one or more of PEEK (polyether ether ketone), PVF (polyvinyl fluoride), PVDF (polyvinylidene fluoride), PTFE (tetrafluoroethylene), FEP (fluorinated ethylene propylene), and PFA (tetrafluoroethylene-perfluoroalkyl vinyl ether), and the volatility is small, so that the subsequent gas detection effect is prevented from being affected by material volatilization.
Example two
The invention also provides a gas circuit connection system 200 which is used for carrying out gas detection on gas to be detected and avoiding pollution and leakage when the gas is sent to a sample.
As shown in fig. 1-2, the air path connection system 200 includes the air path connection adapter needle device 100, the gas detection device 101, and the air collecting device 102 according to any one of the above embodiments. The gas detection device 101 is hermetically connected with the gas outlet 22, and the gas collection device 102 is hermetically connected with the gas inlet 21. The gas pipeline 10 conveys the gas to be detected of the gas collecting device 102 to the gas detection equipment 101, so that the effect of gas closed transportation is achieved.
Further, the gas collecting device 102 includes a valve 103. The air inlet end 21 is hermetically connected with the valve 103. Wherein, the shape and the size of inlet end 21 and valve 103 looks adaptation to the interface shape, the size of accessible regulation inlet end 21 realize being connected with the interface of different valves 103, can realize convenient, high-efficient detection.
In summary, according to the gas circuit connection adapting needle device 100 and the gas circuit connection system 200 provided by the present invention, the gas circuit tube 10 is coated with the fixing portion 20, the gas inlet end 21 of the fixing portion 20 is hermetically connected to the gas collecting device 102, and the gas outlet end 22 is connected to the gas detection device 101, so that the gas to be detected in the gas collecting device 102 is tightly matched with the gas detection device 101, the gas tightness of the sample introduction is ensured, and the convenient operation of the detection is realized. In addition, the air inlet 21 can be designed correspondingly according to the type of the interface of the air collecting device 102, so that the disassembly and replacement are more convenient, and the cost and time of the test are saved.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and method steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed system or apparatus/terminal device and method can be implemented in other ways. For example, the above-described system or apparatus/terminal device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The invention is not limited solely to that described in the specification and embodiments, and additional advantages and modifications will readily occur to those skilled in the art, so that the invention is not limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.
Claims (8)
1. The air path connection adapter needle device is characterized by comprising an air path pipe and a fixing part coated on the periphery of the air path pipe; the fixing part comprises an air inlet end and an air outlet end; the gas outlet end is provided with a threaded hole which is used for being connected with gas detection equipment; the air inlet end is tubular, a clamping block is arranged on the outer wall of the air inlet end, and the clamping block is used for being connected with the air collecting device; the gas path pipe is used for conveying the gas to be detected of the gas collecting device to the gas detection equipment.
2. The air passage connection transfer needle device according to claim 1, wherein the fixture block is a pagoda-shaped protrusion circumferentially arranged at the air inlet end; the pagoda-shaped bulge is used for being in interference fastening connection with the gas collecting device.
3. The air path connection adapter needle device according to claim 2, wherein the pipe diameter of the air inlet end is continuously reduced from the side close to the air outlet end to the side far away from the air outlet end; the number of the pagoda-shaped bulges is multiple, and the pagoda-shaped bulges are arranged at the air inlet end at intervals in parallel.
4. The air passage connection switching needle device according to claim 1, wherein the air passage tube has an increased inner diameter at a side near the air outlet end to form a guide portion.
5. The airway adapter needle device of claim 1, wherein the airway tube and the fixing portion are made of one or more of PEEK, PVF, PVDF, PTFE, FEP, and PFA.
6. A gas circuit connection system, comprising a gas circuit connection switching needle device, a gas detection device and a gas collection device according to any one of claims 1 to 5; the gas detection equipment is hermetically connected with the gas outlet end, and the gas collection device is hermetically connected with the gas inlet end; and the gas pipeline pipe conveys the gas to be detected of the gas collecting device to the gas detection equipment.
7. The gas circuit connection transfer needle device of claim 6, wherein the gas collection device comprises a valve; the air inlet end is hermetically connected with the valve.
8. The air passage connection adapter needle device of claim 7, wherein the shape and size of the air inlet end is adapted to the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111621701.3A CN114324755A (en) | 2021-12-28 | 2021-12-28 | Air channel connection switching needle device and air channel connection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111621701.3A CN114324755A (en) | 2021-12-28 | 2021-12-28 | Air channel connection switching needle device and air channel connection system |
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| Publication Number | Publication Date |
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| CN114324755A true CN114324755A (en) | 2022-04-12 |
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| CN202111621701.3A Pending CN114324755A (en) | 2021-12-28 | 2021-12-28 | Air channel connection switching needle device and air channel connection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116253871A (en) * | 2022-09-07 | 2023-06-13 | 吉林省中研高分子材料股份有限公司 | Preparation method and application of low-VOC polyether-ether-ketone |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204840663U (en) * | 2015-08-17 | 2015-12-09 | 四川大学华西第二医院 | Multi -functional drainage joint |
| US20170311814A1 (en) * | 2015-01-05 | 2017-11-02 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Air circuit structure, blood pressure measuring instrument thereof, and air circuit box |
| CN207074188U (en) * | 2017-07-28 | 2018-03-06 | 江苏恩测检测技术有限公司 | A kind of dirty gas detection sampling structure |
| CN208927316U (en) * | 2018-04-24 | 2019-06-04 | 宁波华坤医疗器械有限公司 | A kind of anesthesia respiration pipeline |
| CN210237257U (en) * | 2019-07-15 | 2020-04-03 | 江阴市百川增氧设备有限公司 | Aeration oxygenation check with detachable air faucet |
| CN210639153U (en) * | 2019-10-08 | 2020-05-29 | 广西电网有限责任公司钦州供电局 | Gas pre-detection flow guide device |
| CN212565859U (en) * | 2020-06-28 | 2021-02-19 | 浙江百诚烟具有限公司 | Lighter |
| CN215218224U (en) * | 2021-05-07 | 2021-12-17 | 江苏天瑞仪器股份有限公司 | Self-adaptive gas sampling system |
-
2021
- 2021-12-28 CN CN202111621701.3A patent/CN114324755A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170311814A1 (en) * | 2015-01-05 | 2017-11-02 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Air circuit structure, blood pressure measuring instrument thereof, and air circuit box |
| CN204840663U (en) * | 2015-08-17 | 2015-12-09 | 四川大学华西第二医院 | Multi -functional drainage joint |
| CN207074188U (en) * | 2017-07-28 | 2018-03-06 | 江苏恩测检测技术有限公司 | A kind of dirty gas detection sampling structure |
| CN208927316U (en) * | 2018-04-24 | 2019-06-04 | 宁波华坤医疗器械有限公司 | A kind of anesthesia respiration pipeline |
| CN210237257U (en) * | 2019-07-15 | 2020-04-03 | 江阴市百川增氧设备有限公司 | Aeration oxygenation check with detachable air faucet |
| CN210639153U (en) * | 2019-10-08 | 2020-05-29 | 广西电网有限责任公司钦州供电局 | Gas pre-detection flow guide device |
| CN212565859U (en) * | 2020-06-28 | 2021-02-19 | 浙江百诚烟具有限公司 | Lighter |
| CN215218224U (en) * | 2021-05-07 | 2021-12-17 | 江苏天瑞仪器股份有限公司 | Self-adaptive gas sampling system |
Non-Patent Citations (1)
| Title |
|---|
| 张猛 等: "一种红外探测器制冷系统设计", 航空兵器, no. 06, pages 20 - 23 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116253871A (en) * | 2022-09-07 | 2023-06-13 | 吉林省中研高分子材料股份有限公司 | Preparation method and application of low-VOC polyether-ether-ketone |
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