CN212844567U - Gas sampling bag - Google Patents
Gas sampling bag Download PDFInfo
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- CN212844567U CN212844567U CN202022232114.2U CN202022232114U CN212844567U CN 212844567 U CN212844567 U CN 212844567U CN 202022232114 U CN202022232114 U CN 202022232114U CN 212844567 U CN212844567 U CN 212844567U
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Abstract
The utility model belongs to the technical field of gas collecting devices, in particular to a gas sampling bag; the gas valve comprises a bag body and a gas valve arranged on the bag body, wherein the gas valve comprises a valve body and a valve core, the valve body comprises a valve core installation cavity, a gas collection joint and a connector connected with the bag body, the valve core is rotatably arranged in the valve core installation cavity, a valve cavity is arranged in the valve core, a gas collection hole and an arc-shaped hole which are communicated with the valve cavity are arranged on the valve core, the valve cavity is communicated with the connector and an inner cavity of the bag body through the arc-shaped hole, when the valve core rotates to the state that the gas collection hole is correspondingly arranged with the gas collection joint, the gas collection hole and the gas collection joint are staggered to be in a closed state, and when the valve core rotates to the state that the gas collection hole is correspondingly arranged with the gas collection joint, the gas collection hole and; the utility model discloses sealing performance is good, rotates the case through the handle, easy operation, convenient and fast, the controllability is good.
Description
The technical field is as follows:
the utility model belongs to the technical field of gaseous collection system, refer in particular to a gaseous sampling bag.
Background art:
in the field of trace substance detection, professional gas component detection equipment is required for trace gas detection, wherein a gas sampling bag is a common gas sampling device and can be used in the field of environmental monitoring or industrial environmental protection and the like. The sealing requirement of the gas sampling bag is very high, and once the sample is polluted by the outside gas, the detection result is seriously influenced.
The utility model discloses a chinese utility model patent (patent number 200820132034.1, announcement day 2009 5 month 27 days) discloses a gaseous sampling bag, including sealed air pocket and metal interface, the outer end of metal interface is equipped with the metal block soon, and the top of metal block is provided with the through-hole, is equipped with the sealing plug that seals metal block top through-hole between the outer terminal surface of metal interface and the metal block, the sealing plug be equipped with the protruding axle of metal interface internal diameter looks adaptation, the lower extreme of protruding axle on the sealing plug is the cone, the material of sealing plug is butyl rubber. During gas collection, the butyl colloid is pricked through the needle, and gas enters the gas bag through the needle tube. The needle is pulled out and the butyl rubber naturally seals the needle hole. The gas sampling bag can only carry out gas collection and gas collection through the needle head and the needle tube, and has large limitation.
The invention content is as follows:
the utility model aims at providing a sealed effectual, gas collection, adopt the gas sampling bag of different joints of gas production.
The utility model discloses a realize like this:
a gas sampling bag comprises a bag body and a gas valve arranged on the bag body, wherein the gas valve comprises a valve body and a valve core, the valve body comprises a valve core installation cavity, a gas collection joint and a connector connected with the bag body, the valve core is rotatably arranged in the valve core installation cavity, a valve cavity is arranged in the valve core, a gas collection hole and an arc-shaped hole which are communicated with the valve cavity are formed in the valve core, the gas collection joint is communicated with the valve cavity through the gas collection hole, the valve cavity is communicated with the connector and an inner cavity of the bag body through the arc-shaped hole, when the valve core rotates until the gas collection hole is correspondingly arranged with the gas collection joint, the gas collection hole and the gas collection joint are staggered and in a closed state, and when the valve core rotates until the gas collection hole and the gas, When the valve body is closed, the gas collecting hole and the gas collecting joint, and the gas collecting hole and the gas collecting joint are not correspondingly arranged.
In foretell a gas sampling bag, be provided with the adapter on the bag body, the one end and the bag body fixed connection of adapter, the other end are provided with connecting portion.
In the above-mentioned gas sampling bag, the other end of the adapter passes through the arc hole and extends into the valve cavity.
In the gas sampling bag, the arc-shaped hole is a limiting hole, and when the other end of the adapter is positioned in the middle of the limiting hole, the gas collecting hole is arranged corresponding to the gas collecting joint; when the other end of the adapter is positioned at the right end of the limiting hole, the gas production hole is arranged corresponding to the gas production joint; when the other end of the adapter is positioned at the left end of the limiting hole, the valve core and the valve body are in a closed state.
In the gas sampling bag, the valve body is a first cylinder body with an end plate at one end, and the gas collection joint, the gas production joint and the connector are positioned on the cylinder wall of the first cylinder body.
In the gas sampling bag, the valve core is a second cylinder body with an end plate at one end, the gas collection hole and the gas production hole are arranged on the cylinder wall, and a handle for driving the valve core to rotate is arranged on the end plate.
In the gas sampling bag, the inner wall of the gas sampling joint is provided with an annular convex edge towards the center, the middle part of the annular convex edge is provided with a through hole, and a one-way valve plate for sealing the through hole is arranged below the annular convex edge.
In the above gas sampling bag, the gas sampling joint is provided with a sealing cover.
Compared with the prior art, the utility model outstanding advantage is:
the utility model discloses sealing performance is good, rotates the case through the handle, easy operation, convenient and fast, the controllability is good.
Description of the drawings:
FIG. 1 is a schematic perspective view of the gas valve of the present invention;
FIG. 2 is a front view of the gas valve of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a top view of the gas valve of the present invention;
FIG. 5 is a cross-sectional view B-B of FIG. 4;
fig. 6 is a front view of the air valve of the present invention connected to the adapter;
fig. 7 is a cross-sectional view C-C of fig. 6.
In the figure: 1. an air valve; 2. a valve body; 3. a valve core; 4. a gas collection joint; 5. a gas production joint; 6. a connector; 7. a valve cavity; 8. a gas collection hole; 9. gas production holes; 10. an arc-shaped hole; 11. an adapter; 12. a handle; 13. an annular convex edge; 14. and a through hole.
The specific implementation mode is as follows:
the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 7:
a gas sampling bag comprises a bag body and a gas valve 1 arranged on the bag body, wherein the gas valve 1 comprises a valve body 2 and a valve core 3, the valve body 2 comprises a valve core installation cavity, a gas collection joint 4, a gas production joint 5 and a connector 6 connected with the bag body, the valve core 3 is rotatably arranged in the valve core installation cavity, a valve cavity 7 is arranged in the valve core 3, a gas collection hole 8, a gas production hole 9 and an arc-shaped hole 10 which are communicated with the valve cavity are arranged on the valve core 3, the gas collection joint 4 is communicated with the valve cavity 7 through the gas collection hole 8, the gas production joint 5 is communicated with the valve cavity 7 through the gas production hole 9, the valve cavity 7 is communicated with the connector 6 and an inner cavity of the bag body through the arc-shaped hole 10, when the valve core 3 rotates until the gas collection hole 8 is correspondingly arranged with the gas collection joint 4, the gas production hole 9 is staggered with the gas production joint 5 to be in a closed state, when the gas, the gas collection hole 8 and the gas collection joint 4 are staggered and in a closed state, and when the valve core 3 and the valve body 2 are closed, the gas collection hole 8, the gas collection joint 4, the gas production hole 9 and the gas production joint 5 are not correspondingly arranged.
In order to facilitate the connection with the bag body and improve sealing performance, be provided with adapter 11 on the bag body, adapter 11's one end and bag body fixed connection, the other end are provided with connecting portion. The connecting portion of this embodiment is the external screw thread, and adapter 11's the other end passes through threaded connection with connector 6. One end of the adapter 11 is fixedly connected with the bag body in a heat sealing mode.
As shown in fig. 7, the other end of the adapter 11 passes through the arc hole 10 and extends into the valve chamber 7, so as to prevent the valve core 3 from rotating on the valve body 2 by 360 degrees. The arc-shaped hole 10 is a limiting hole, and when the other end of the adapter 11 is positioned in the middle of the limiting hole, the gas collecting hole 8 and the gas collecting joint 4 are correspondingly arranged; when the other end of the adapter 11 is positioned at the right end of the limiting hole, the gas production hole 9 is arranged corresponding to the gas production joint 5; when the other end of the adapter 11 is positioned at the left end of the limiting hole, the valve core 3 and the valve body 2 are in a closed state. The specific positions of the valve core 3 and the valve body 2 can be set according to actual conditions, and the positions are suitable for the embodiment. When the other end of the adapter 11 is positioned in the middle of the limiting hole, the valve core 3 and the valve body 2 are in a closed state, and the like.
As shown in fig. 5, the valve body 2 is a first cylinder with an end plate at one end, and the gas collection joint 4, the gas production joint 5 and the connector 6 are located on the cylinder wall of the first cylinder. In this embodiment, the gas collecting joint 4 and the gas producing joint 5 are located on the upper cylinder wall of the first cylinder, and the connecting joint 6 is located on the lower cylinder wall of the first cylinder.
As shown in fig. 5, the valve core 3 is a second cylinder with an end plate at one end, the gas collection hole 8 and the gas production hole 9 are arranged on the cylinder wall, and the specific positions of the gas collection hole 8 and the gas production hole 9 are set according to actual conditions. The end plate is provided with a handle 12 which drives the valve core 3 to rotate. The handle 12 extends out of the valve body 2 for easy operation.
The utility model discloses be provided with sealed lid on the gas production connects 5. As shown in fig. 3, 5 and 7, an annular convex edge 13 is arranged towards the center on the inner wall of the gas production joint 5, a through hole 14 is formed in the middle of the annular convex edge 13, and a one-way valve plate for sealing the through hole is arranged below the annular convex edge 14.
The utility model discloses a theory of operation:
in the initial working state, the valve element 3 and the valve body 2 are in a closed state. The air valve has good sealing performance, and external air can not enter the bag body.
During gas collection (as shown in fig. 5, in a gas collection state), the valve core 3 is rotated to enable the other end of the adapter 11 to be located in the middle of the limiting hole, the gas collection hole 8 is arranged corresponding to the gas collection connector 4, at the moment, gas inside and outside the bag body is communicated, and a user can collect gas. Gas enters the bag body through the gas collecting joint 4, the gas collecting hole 8, the valve cavity 7, the arc-shaped hole 10, the connector 6 and the adapter 11 in sequence.
After the gas collection is completed, the user rotates the valve core 3, so that when the other end of the adapter 11 is positioned at the left end of the limiting hole, the valve core 3 and the valve body 2 are in a closed state. The gas collected at this time is kept in the bag body.
After a period of storage, the user sends the sample gas to the test device. At this time, when the user rotates the valve core 3 to make the other end of the adapter 11 be positioned at the right end of the limiting hole, the gas production hole 9 is arranged corresponding to the gas production joint 5. The user utilizes the sampling needle to puncture sealing cover, one-way valve block, and then utilizes the sampling needle to derive the gas sample who keeps in the bag is internal to send it to gas detection equipment, carry out further test. The gas enters the gas detection equipment through the bag body, the adapter 11, the connector 6, the valve cavity 7, the gas production hole 9 and the gas production connector 5 in sequence.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a gaseous sampling bag, includes the bag body and sets up pneumatic valve (1) on the bag body, its characterized in that: the air valve (1) comprises a valve body (2) and a valve core (3), the valve body (2) comprises a valve core installation cavity, a gas collection joint (4), a gas production joint (5) and a connector (6) connected with a bag body, the valve core (3) is rotatably arranged in the valve core installation cavity, a valve cavity (7) is arranged in the valve core (3), a gas collection hole (8), a gas production hole (9) and an arc hole (10) which are communicated with the valve cavity (7) are arranged on the valve core (3), the gas collection joint (4) is communicated with the valve cavity (7) through the gas collection hole (8), the gas production joint (5) is communicated with the valve cavity (7) through the gas production hole (9), the valve cavity (7) is communicated with the connector (6) and an inner cavity of the bag body through the arc hole (10), when the valve core (3) rotates until the gas collection hole (8) is correspondingly arranged with the gas collection joint (4), the gas production hole (9) and the gas production joint (5) are staggered and, when the valve core (3) rotates to the gas production hole (9) and the gas production joint (5) are correspondingly arranged, the gas collection hole (8) and the gas collection joint (4) are staggered and are in a closed state.
2. A gas sampling bag according to claim 1, wherein: the utility model discloses a bag body, including the bag body, be provided with adapter (11) on the bag body, the one end and the bag body fixed connection of adapter (11), the other end are provided with connecting portion.
3. A gas sampling bag according to claim 2, wherein: the other end of the adapter (11) penetrates through the arc-shaped hole (10) and extends into the valve cavity (7).
4. A gas sampling bag according to claim 2 or 3, wherein: the arc-shaped hole (10) is a limiting hole, and when the other end of the adapter (11) is positioned in the middle of the limiting hole, the gas collecting hole (8) and the gas collecting joint (4) are correspondingly arranged; when the other end of the adapter (11) is positioned at the right end of the limiting hole, the gas production hole (9) is arranged corresponding to the gas production joint (5); when the other end of the adapter (11) is positioned at the left end of the limiting hole, the valve core (3) and the valve body (2) are in a closed state.
5. A gas sampling bag according to claim 1, wherein: the valve body (2) is a first cylinder body with an end plate at one end, and the gas collection joint (4), the gas production joint (5) and the connector (6) are positioned on the cylinder wall of the first cylinder body.
6. A gas sampling bag according to claim 1 or 5, wherein: the valve core (3) is a second cylinder body with an end plate at one end, the gas collection hole (8) and the gas production hole (9) are arranged on the cylinder wall, and a handle (12) for driving the valve core (3) to rotate is arranged on the end plate.
7. A gas sampling bag according to claim 1, wherein: an annular convex edge (13) is arranged towards the center on the inner wall of the gas production joint (5), a through hole (14) is formed in the middle of the annular convex edge (13), and a one-way valve plate for sealing the through hole is arranged below the annular convex edge (13).
8. A gas sampling bag according to claim 7, wherein: and a sealing cover is arranged on the gas production joint (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022232114.2U CN212844567U (en) | 2020-10-09 | 2020-10-09 | Gas sampling bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022232114.2U CN212844567U (en) | 2020-10-09 | 2020-10-09 | Gas sampling bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212844567U true CN212844567U (en) | 2021-03-30 |
Family
ID=75154133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022232114.2U Active CN212844567U (en) | 2020-10-09 | 2020-10-09 | Gas sampling bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212844567U (en) |
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2020
- 2020-10-09 CN CN202022232114.2U patent/CN212844567U/en active Active
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