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Air bag device capable of automatically collecting environmental background gas and preparation method and use method thereof

An automatic collection and environmental technology, applied in measuring devices, sampling devices, sampling, etc., can solve the problems of cumbersome collection, avoid cumbersomeness, ensure accuracy, and save cost and time.

Pending Publication Date: 2022-03-01
SHENZHEN BREATHA BIOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an airbag device for automatically collecting environmental background gas and its preparation method and use method, aiming to solve the problem of cumbersome sample collection of environmental background gas during gas detection and improve the accuracy of gas detection

Method used

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  • Air bag device capable of automatically collecting environmental background gas and preparation method and use method thereof
  • Air bag device capable of automatically collecting environmental background gas and preparation method and use method thereof
  • Air bag device capable of automatically collecting environmental background gas and preparation method and use method thereof

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Experimental program
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Embodiment 1

[0044] Such as figure 1As shown, the air bag device 100 for automatically collecting ambient background gas includes a detection gas chamber 10 and an ambient gas chamber 20 which are both surrounded by thin films.

[0045] The ambient gas chamber 20 is disposed inside the detection gas chamber 10 , and the outer film wall of the ambient gas chamber 20 and the inner film wall of the detection gas chamber 10 are fixedly connected along a preset heat-sealing line 30 . That is, there is a joint welded along the heat-sealing line 30 between the two films of the ambient gas chamber 20 and the detection gas chamber 10 . The heat seal line 30 can be in the form of a ring, a fold line, or discrete bonding points or segments, so that when the film of the detection gas chamber 10 is inflated and bulged, the film of the ambient gas chamber 20 will be pulled under the action of the heat seal line 30 Bulges in multiple directions, creating negative pressure and drawing in ambient backgrou...

Embodiment 2

[0051] The second aspect of the present invention provides a method for preparing an air bag device for automatically collecting ambient background gas, which is used to prepare the air bag device 100 for automatically collecting ambient background gas according to any one of the above-mentioned embodiments.

[0052] combine figure 2 Shown, this preparation method comprises the following steps:

[0053] (1) Take a cylindrical airbag 70 of film material with open upper and lower ends and a triangular support strip 60 . Such as figure 2 As shown in a, the cylindrical air bag 70 is in the shape of a two-layer stacked rectangle when flattened.

[0054] Further, the cylindrical airbag 70 is flattened, and the two sides of the end of the first edge 71 formed by heat sealing are cut, so that the first edge 71 is surrounded by a trapezoid. Specifically, along the figure 2 The two dotted lines in a are trimmed to form a chamfered structure.

[0055] (2) Put the supporting strip...

Embodiment 3

[0063] The third aspect of the present invention provides a system for automatically collecting ambient background gas, including the air bag device 100 for automatically collecting ambient background gas as described in any one of the above-mentioned embodiments and an air source outlet device (not shown in the figure) or The draft tube 200. The gas source outlet device is used to pump the gas to be detected into the detection gas chamber 10 through the first valve 40 to realize gas detection in the industrial field. Such as image 3 As shown, the guide tube 200 includes a conduit 201 and a mouthpiece 202 that are in communication. The mouthpiece 202 is sealingly connected with the first valve 40, and is used to guide the user's breath into the detection gas chamber 10 through the conduit 201, so as to realize breath detection in the medical field.

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Abstract

The invention discloses an air bag device capable of automatically collecting environmental background gas and a preparation method and a use method thereof. The air bag device comprises a detection gas chamber and an environmental gas chamber which are formed by surrounding of thin films; the environment gas chamber is arranged in the detection gas chamber, and the film outer wall of the environment gas chamber is fixedly connected with the film inner wall of the detection gas chamber along a preset heat sealing line; when to-be-detected gas enters the detection gas chamber through the first valve, the detection gas chamber is inflated and bulged, so that the environmental gas chamber is driven to be bulged and generate negative pressure, and environmental gas enters the environmental gas chamber through the second valve. According to the invention, the to-be-tested gas and the environmental background gas are collected at the same time at the same place, and the precision of gas detection in the industrial production and medical field is ensured. When the to-be-tested gas is collected, the environmental background gas can be automatically collected, so that the complexity of sample collection is avoided, and the test cost and time are greatly saved.

Description

【Technical field】 [0001] The invention relates to the technical field of gas detection, in particular to an air bag device for automatically collecting ambient background gas, a preparation method and a use method thereof. 【Background technique】 [0002] Gas detection in industrial and medical fields can be divided into direct sampling detection and indirect sampling detection. At present, due to the inconvenient movement of large-scale equipment in gas detection, and the large-scale census of human exhaled breath in the medical industry, it is often impossible to achieve real-time detection. Therefore, a gas transfer collection device is needed to integrate industrial production and The gas to be tested in the medical field is collected and transferred to the corresponding testing equipment for testing. Among them, the gas to be tested often needs to be compared with the background gas of its environment when it is detected, so as to ensure the accuracy of the test. [00...

Claims

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Application Information

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IPC IPC(8): G01N1/22
CPCG01N1/2247
Inventor 康军伟王磊王东鉴李庆运
Owner SHENZHEN BREATHA BIOTECHNOLOGY CO LTD