CN220437900U - Gas sampling bag - Google Patents
Gas sampling bag Download PDFInfo
- Publication number
- CN220437900U CN220437900U CN202322048901.5U CN202322048901U CN220437900U CN 220437900 U CN220437900 U CN 220437900U CN 202322048901 U CN202322048901 U CN 202322048901U CN 220437900 U CN220437900 U CN 220437900U
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- China
- Prior art keywords
- valve
- bag
- gas sampling
- sampling bag
- utility
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- 238000005070 sampling Methods 0.000 title claims abstract description 34
- 239000012528 membrane Substances 0.000 claims description 6
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 5
- 229910052731 fluorine Inorganic materials 0.000 claims description 5
- 239000011737 fluorine Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 230000007306 turnover Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 23
- 239000000463 material Substances 0.000 abstract description 8
- 238000004806 packaging method and process Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 229920002620 polyvinyl fluoride Polymers 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920009441 perflouroethylene propylene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a gas sampling bag which comprises a hollow bag body, an air inlet and outlet valve structure communicated with the bag body, wherein the bag body is formed by packaging three edges after a single film structure is folded in half, a hanging hole is formed at the position close to the intersection of any two edge sealing edges, and an inclined edge sealing edge is further arranged at the position close to the hanging hole. The utility model has the advantages of simple structure, reasonable edge sealing, high material utilization rate, convenient use and the like.
Description
Technical Field
The utility model mainly relates to the technical field of VOCs sampling, in particular to a gas sampling bag.
Background
A gas sampling bag, also known as an air sampling bag or Tedlar bag, is a container for collecting and storing a gas sample. The sampling bag is typically rectangular or square, varying in volume from 0.2 liters to 50 liters, typically 1 liter and 5 liters. In addition to the bag, the sampling bag is usually equipped with valves, hanging holes, and the like.
In the prior art, the bag body is formed by packaging two films on four sides, and for convenient use, the fixing holes can be formed in general, the fixing holes in the prior art are formed in the edge sealing or outside the edge sealing, the problem that the sealing effect is poor can be caused by improper opening positions at the edge sealing position, the bag body is formed by opening the holes outside the edge sealing, and in order to reduce the consumption of materials, some bag bodies are not provided with the fixing holes, so that the design reduces the convenience of use. The existing sampling bags have the problems that the edge sealing mode is unreasonable, the material utilization rate is too low, the position of a fixing hole is unreasonable, and the like. Because the sampling bag is mostly disposable, the bag body material is expensive, and when the use is finished, the whole sampling bag is often discarded, so the design of the sampling bag with more reasonable edge sealing, more material saving and convenient use is a technical problem to be solved urgently by the technicians in the field.
Disclosure of Invention
Aiming at the technical problems in the prior art, the utility model provides the gas sampling bag which has the advantages of simple structure, reasonable edge sealing, high material utilization rate, lower cost and convenient use.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a gas sampling bag, includes hollow bag body and the business turn over pneumatic valve structure that is linked together with the bag body, the bag body is packed three limit and is formed by the encapsulation after the single membrane fifty percent discount, is close to the crossing department of arbitrary two banding and has seted up the hanging hole, is close to hanging hole department still is equipped with a slant banding.
As a further improvement of the utility model: and a metal ring is arranged at the hanging hole.
As a further improvement of the utility model: the air inlet and outlet valve structure comprises a valve main body and a valve core, the bag main body comprises a two-layer film structure, a valve structure mounting hole is formed in any one layer film structure, one end of the valve core is arranged in the bag main body, and the other end of the valve core penetrates through the mounting hole to be connected with the valve main body.
As a further improvement of the utility model: the valve core is approximately conical at one end connected with the valve body.
As a further improvement of the utility model: the junction of valve main part and case adopts interference fit.
As a further improvement of the utility model: and a sealing gasket is arranged between the valve main body and the valve core.
As a further improvement of the utility model: the film structure of the bag body is a fluorine film.
Compared with the prior art, the utility model has the advantages that:
1. the gas sampling bag is characterized in that the bag body is formed by packaging three edges after a single film structure is folded in half, the edge sealing mode is simpler than a surrounding edge sealing process, the edge sealing effect is better, the hanging hole is formed at the intersection position close to two edge sealing, and is provided with an oblique edge sealing, so that the good sealing of the sampling bag is ensured, meanwhile, the reduction of the volume of the bag body caused by the fact that the hanging hole is formed can be avoided, the film material is utilized to the greatest extent, the cost of the sampling bag is reduced, and the metal ring is arranged at the hanging hole, so that the sampling bag is convenient to hang.
2. According to the gas sampling bag, the valve structure mounting holes can be formed in any one layer of film structure, for example, when the valve structure mounting holes are formed in the upper layer of film structure, the air inlet and outlet valve structure is mounted on the upper layer of film structure through the valve structure mounting holes, the upper layer of film structure is positioned between the sealing gasket and the valve core, the valve core and the valve main body are in interference fit, rapid compression sealing can be achieved, and the air inlet valve structure is mounted more conveniently and rapidly.
Drawings
Fig. 1 is a top view of the present utility model in an embodiment.
Fig. 2 is a side view of the utility model in an embodiment.
FIG. 3 is a front view of the air inlet and outlet valve structure of the present utility model in an embodiment.
Fig. 4 is a cross-sectional view at A-A in fig. 3.
Legend description:
1. a bag body; 2. an air inlet and outlet valve structure; 21. a valve body; 22. a valve core; 3. a hanging hole; 4. obliquely sealing edges; 5. and a sealing gasket.
Detailed Description
The utility model is further described below in connection with the drawings and the specific preferred embodiments, but the scope of protection of the utility model is not limited thereby.
In the description of the present utility model, it should be understood that the terms "side," "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the utility model.
The utility model will be described in further detail with reference to the drawings and the specific examples.
As shown in fig. 1 to 4, this embodiment provides a gas sampling bag, including a hollow bag body 1 and an air inlet and outlet valve structure 2 communicated with the bag body 1, the bag body 1 is formed by packaging three edges after folding a single film structure, a hanging hole 3 is provided near the intersection of any two sealed edges, and an oblique sealed edge 4 is further provided near the hanging hole 3.
The gas sampling bag in this embodiment, bag body 1 is packaged by three limit after the single membrane structure fifty percent discount, and this kind of banding mode compares banding technology simpler all around, and banding effect is better, and hanging hole 3 is offered and is being close to the intersection department of two banding, and is equipped with the slant banding, can also avoid the bag body volume reduction that arouses because of offering hanging hole 3 when guaranteeing that the sampling bag is well sealed, and the maximized membrane material that has utilized has reduced the cost of sampling bag.
In the embodiment, the hanging hole 3 is provided with the metal ring, and the hanging of the sampling bag after sampling can be facilitated by arranging the metal ring.
In this embodiment, the air inlet and outlet valve structure 2 includes a valve main body 21 and a valve core 22, the bag body 1 includes two layers of film structures, a valve structure mounting hole is provided on any one layer of film structure, one end of the valve core 22 is provided in the bag body 1, the other end of the valve core 22 passes through the mounting hole to be connected with the valve main body 21, one end of the valve core 22 connected with the valve main body 21 is approximately conical, the connection part of the valve main body 21 and the valve core 22 adopts interference fit, and a sealing gasket 5 is provided between the valve main body 21 and the valve core 22.
The gas sampling bag in this embodiment can set up valve structure mounting hole on arbitrary one deck membrane structure, if set up valve structure mounting hole on upper film structure, the business turn over pneumatic valve structure passes through the mounting hole to be installed on upper film structure, and upper film structure is located between sealed pad 5 and the case 22, adopts interference fit between case 22 and the valve main part 21, can realize compressing tightly sealedly fast, and the inlet valve structure installation is convenient and fast more.
In the embodiment, the film structure of the bag body 1 is a fluorine film, and the fluorine film has the characteristics of firmness, durability, excellent chemical inertness and the like; the fluorine film is any one of PVF, FEP, PVDF.
The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the utility model without departing from the principles thereof are intended to be within the scope of the utility model as set forth in the following claims.
Claims (7)
1. The utility model provides a gas sampling bag, its characterized in that includes hollow bag body (1) and business turn over pneumatic valve structure (2) that are linked together with bag body (1), bag body (1) are packed three limit and are formed after being folded by the monolithic membrane structure, are close to intersection department of arbitrary two banding and have seted up hanging hole (3), are close to hanging hole (3) department still is equipped with a slant banding (4).
2. A gas sampling bag according to claim 1, characterized in that the hanging hole (3) is provided with a metal ring.
3. The gas sampling bag according to claim 1, wherein the gas inlet and outlet valve structure (2) comprises a valve main body (21) and a valve core (22), the bag main body (1) comprises a two-layer film structure, a valve structure mounting hole is formed in any one layer of film structure, one end of the valve core (22) is arranged in the bag main body (1), and the other end of the valve core (22) penetrates through the mounting hole to be connected with the valve main body (21).
4. A gas sampling bag according to claim 3, wherein the end of the valve cartridge (22) connected to the valve body (21) is of approximately conical design.
5. A gas sampling bag according to claim 4, wherein the junction of the valve body (21) and the valve cartridge (22) is an interference fit.
6. A gas sampling bag according to claim 3, wherein a gasket (5) is further provided between the valve body (21) and the valve cartridge (22).
7. A gas sampling bag according to any one of claims 1 to 6, wherein the membrane structure of the bag body (1) is a fluorine film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322048901.5U CN220437900U (en) | 2023-08-01 | 2023-08-01 | Gas sampling bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322048901.5U CN220437900U (en) | 2023-08-01 | 2023-08-01 | Gas sampling bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220437900U true CN220437900U (en) | 2024-02-02 |
Family
ID=89701039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322048901.5U Active CN220437900U (en) | 2023-08-01 | 2023-08-01 | Gas sampling bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220437900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117761262A (en) * | 2024-02-22 | 2024-03-26 | 暨南大学 | Box-type escape source volatile component controllable high-precision characterization system |
-
2023
- 2023-08-01 CN CN202322048901.5U patent/CN220437900U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117761262A (en) * | 2024-02-22 | 2024-03-26 | 暨南大学 | Box-type escape source volatile component controllable high-precision characterization system |
| CN117761262B (en) * | 2024-02-22 | 2024-04-30 | 暨南大学 | Box-type escape source volatile component controllable high-precision characterization system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |