CN220912765U - Plastic porous glass plate absorption tube - Google Patents
Plastic porous glass plate absorption tube Download PDFInfo
- Publication number
- CN220912765U CN220912765U CN202322216603.2U CN202322216603U CN220912765U CN 220912765 U CN220912765 U CN 220912765U CN 202322216603 U CN202322216603 U CN 202322216603U CN 220912765 U CN220912765 U CN 220912765U
- Authority
- CN
- China
- Prior art keywords
- absorption tube
- check valve
- diaphragm
- tube shell
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 51
- 239000004033 plastic Substances 0.000 title claims abstract description 17
- 229920003023 plastic Polymers 0.000 title claims abstract description 17
- 239000005373 porous glass Substances 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000011521 glass Substances 0.000 claims abstract description 9
- 239000006096 absorbing agent Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000004140 cleaning Methods 0.000 abstract description 2
- 239000003570 air Substances 0.000 description 36
- 239000000126 substance Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to the technical field of gas collection, and discloses a plastic porous glass plate absorption tube, which comprises an absorption tube shell and a diaphragm one-way valve, wherein the absorption tube shell is provided with an air inlet and an air outlet; the absorption tube shell is provided with a glass sieve plate near the air inlet. The utility model adopts the straight cylinder structure to conveniently clean and dry the absorber shell, and is convenient to use. The diaphragm check valve comprises a check valve inlet end, a check valve outlet end, a diaphragm and a fixed support, wherein the check valve inlet end and the check valve outlet end are respectively provided with a cavity, and the check valve inlet end is movably connected with the check valve outlet end. The diaphragm one-way valve and the absorption tube shell can be disassembled and absorbed, so that the disassembly and the cleaning are convenient; when the device works, the diaphragm one-way valve can effectively enable the gas to be detected to enter the absorption tube shell; after the gas collection is completed, the detection liquid can be ensured not to overflow, and the sealing performance is good.
Description
Technical Field
The utility model relates to the technical field of gas collection, in particular to a plastic porous glass plate absorption tube.
Background
The porous glass plate absorption tube is a sample collector for collecting harmful chemical substances in the air in occupational health detection, mainly collects gaseous and vapor substances, and can also collect various samples in aerosol and air, and the collected objects are different according to different absorption liquids in the porous glass plate absorption tube.
The use method is simple, the absorption liquid with specific absorption function on the substance to be detected is filled, the air extractor is connected, the sample is taken to the sampling point for sampling for a period of time, harmful substances in the ambient air to be detected can be dissolved into the absorption liquid when passing through the absorption liquid, after the sample collection is completed, the air inlet is plugged by the plug, and the air inlet is taken back to a laboratory for quantitative analysis.
The existing porous glass plate absorption tube is of a U-shaped design, is difficult to clean and dry, is manufactured by adopting glass, and needs to be placed in a special storage box to prevent breakage.
Disclosure of utility model
The utility model solves the technical problem of providing a plastic porous glass plate absorption tube which is convenient to clean and dry.
The technical scheme adopted for solving the technical problems is as follows: the plastic porous glass plate absorption tube comprises an absorption tube shell and a diaphragm one-way valve, wherein the absorption tube shell is provided with an air inlet and an air outlet, and the diaphragm one-way valve is detachably connected with the air inlet of the absorption tube shell; a glass sieve plate is arranged at the position, close to the air inlet, of the absorber tube shell; the air inlet sealing piece is matched with the diaphragm one-way valve.
Further is: the diaphragm check valve comprises a check valve inlet end, a check valve outlet end, a diaphragm and a fixed support, wherein the check valve inlet end and the check valve outlet end are respectively provided with a containing cavity, the fixed support is placed close to the check valve outlet end, the diaphragm is placed close to the check valve inlet end, and the check valve inlet end is movably connected with the check valve outlet end.
Further is: the movable connection is threaded connection or interference fit.
Further is: the absorption tube shell is made of PP plastic.
Further is: the air outlet sealing piece is an air outlet rubber cap or an air outlet pipe plug.
Further is: the air inlet sealing piece is an air inlet rubber cap or an air inlet pipe plug.
The beneficial effects of the utility model are as follows: the utility model gives up the U-shaped design, adopts the straight cylinder type structural design, and is convenient for cleaning and drying the absorption tube. The diaphragm one-way valve is connected with the shell of the absorption tube, so that the backflow of the detection liquid can be prevented when the gas is collected; after the gas to be detected is sucked, the outflow of the liquid can be ensured. The shell body of the absorption tube is made of PP plastic, so that the absorption tube is not fragile and the service life of the absorption tube is prolonged.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic illustration of a diaphragm check valve of the present utility model;
Marked in the figure as: 11. an absorber tube housing; 111. a glass screen plate; 21. an inlet end of the one-way valve; 22. an outlet end of the one-way valve; 23. a diaphragm; 24. a fixed bracket; 31. an intake seal; 32. and (5) an air outlet sealing piece.
Detailed Description
The utility model is further described below with reference to the drawings and the detailed description.
The plastic porous glass plate absorption tube shown in fig. 1 and 2 comprises an absorption tube shell 11 and a diaphragm one-way valve, wherein the absorption tube shell 11 is provided with an air inlet and an air outlet, and PP plastic materials are adopted for avoiding the breakage of the absorption tube shell 11, so that the service life is prolonged. The diaphragm check valve is detachably connected with the air inlet of the absorption tube shell 11, so that the diaphragm check valve is convenient to clean after being detached; a glass sieve plate 111 is arranged at the position, close to the air inlet, of the absorption tube shell 11, after the detection liquid is injected into the absorption tube shell 11, the gas to be detected is sucked into the absorption tube shell 11, and then the gas and the detection liquid are fully fused after passing through the glass sieve plate 111; the air outlet sealing piece 32 matched with the air outlet is also included, and the air inlet sealing piece 31 matched with the diaphragm check valve is also included. When the air outlet sealing member 32 is opened firstly, after the detection liquid corresponding to the environment to be detected is injected into the absorption tube shell 11, the air suction machine is connected with the air outlet, the air inlet sealing member 31 is opened to suck the air to be detected, the air to be detected enters the absorption tube shell 11 after passing through the diaphragm one-way valve, and the glass screen plate 111 is submerged by the detection liquid, so that bubbles are formed when the air to be detected passes through the glass screen plate 111, the full fusion reaction of the air to be detected and the detection liquid is ensured, and the detection effect is improved.
On the basis, as shown in fig. 2, the diaphragm check valve comprises a check valve inlet end 21, a check valve outlet end 22, a diaphragm 23 and a fixed support 24, wherein the check valve inlet end 21 and the check valve outlet end 22 are respectively provided with a containing cavity, the fixed support 24 is placed close to the check valve outlet end 22, the diaphragm 23 is placed close to the check valve inlet end, and the check valve inlet end 21 is movably connected with the check valve outlet end 22. When the aspirator works, under the action of suction force, the diaphragm 23 is tightly attached to the fixed bracket 24, so that gas can conveniently enter the absorption tube shell 11; when the aspirator is in a suspended state, the diaphragm 23 seals the passage of the inlet end 21 of the check valve under the pressure of the liquid. The outlet end 22 of the one-way valve is connected with the air inlet of the absorption tube shell 11, so that the absorption tube shell is convenient to detach and clean.
On the basis of the above, as shown in fig. 2, for convenience in connecting the check valve inlet end 21 and the check valve outlet end 22, a threaded connection or interference fit is adopted to ensure the sealing performance.
On the basis, as shown in fig. 1, the sealing performance is ensured by adopting an air outlet rubber cap or an air outlet pipe plug of the air outlet sealing piece 32; the intake seal 31 is an intake rubber cap or an intake pipe plug.
While the foregoing is directed to embodiments of the present utility model, other and further details of the utility model may be had by the present utility model, it should be understood that the foregoing description is merely illustrative of the present utility model and that no limitations are intended to the scope of the utility model, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the utility model.
Claims (6)
1. The porous glass board absorption tube of plastics, its characterized in that: the device comprises an absorption tube shell and a diaphragm one-way valve, wherein the absorption tube shell is provided with an air inlet and an air outlet, and the diaphragm one-way valve is detachably connected with the air inlet of the absorption tube shell; a glass sieve plate is arranged at the position, close to the air inlet, of the absorber tube shell; the air inlet sealing piece is matched with the diaphragm one-way valve.
2. The plastic porous glass plate absorption tube of claim 1, wherein: the diaphragm check valve comprises a check valve inlet end, a check valve outlet end, a diaphragm and a fixed support, wherein the check valve inlet end and the check valve outlet end are respectively provided with a containing cavity, the fixed support is placed close to the check valve outlet end, the diaphragm is placed close to the check valve inlet end, and the check valve inlet end is movably connected with the check valve outlet end.
3. The plastic porous glass plate absorption tube of claim 2, wherein: the movable connection is threaded connection or interference fit.
4. The plastic porous glass plate absorption tube of claim 2, wherein: the absorption tube shell is made of PP plastic.
5. The plastic porous glass plate absorption tube of claim 1, wherein: the air outlet sealing piece is an air outlet rubber cap or an air outlet pipe plug.
6. The plastic porous glass plate absorption tube of claim 1, wherein: the air inlet sealing piece is an air inlet rubber cap or an air inlet pipe plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322216603.2U CN220912765U (en) | 2023-08-17 | 2023-08-17 | Plastic porous glass plate absorption tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322216603.2U CN220912765U (en) | 2023-08-17 | 2023-08-17 | Plastic porous glass plate absorption tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220912765U true CN220912765U (en) | 2024-05-07 |
Family
ID=90918071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322216603.2U Active CN220912765U (en) | 2023-08-17 | 2023-08-17 | Plastic porous glass plate absorption tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220912765U (en) |
-
2023
- 2023-08-17 CN CN202322216603.2U patent/CN220912765U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |