CN212932092U - Coal mine underground positive pressure type convenient gas sampler - Google Patents
Coal mine underground positive pressure type convenient gas sampler Download PDFInfo
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- CN212932092U CN212932092U CN202021845965.8U CN202021845965U CN212932092U CN 212932092 U CN212932092 U CN 212932092U CN 202021845965 U CN202021845965 U CN 202021845965U CN 212932092 U CN212932092 U CN 212932092U
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Abstract
The utility model relates to a gas acquisition device, especially a convenient gas sampling ware of colliery underground positive pressure formula. The air cylinder is internally provided with a sealing piston, the sealing piston is fixedly connected with one end of a piston rod, the other end of the piston rod extends out of one port of the air cylinder, the other port of the air cylinder is communicated with a third port of a three-way joint, a first one-way check valve and a second one-way check valve are respectively arranged on a first port and a second port of the three-way joint, and the first one-way check valve and the second one-way check valve are arranged in opposite directions; the outer port of the first one-way check valve is an air inlet port, and an air filter element is installed at the outer port of the first one-way check valve. The utility model discloses the artifical gas appearance acquisition time in the short colliery underground improves work efficiency, reduces the safety risk; the air filter element filters dust, and the cleanliness of the gas to be detected is guaranteed.
Description
Technical Field
The utility model relates to a gas acquisition device, especially a convenient gas sampling ware of colliery underground positive pressure formula.
Background
The individual sites under the coal mine need to manually and rapidly measure the gas samples in the field environment, such as: the parts of the fire extinguishing chamber, the underground chamber, the natural fire hidden trouble place, the underground fire area, the working face air inlet and return flow and the like. The sampler that uses in the pit of present colliery is the gate valve formula sampler, and operating personnel need frequently adjust the gate valve to 90 degrees, accomplishes gas measurement and gas sample collection, and the manual detection gas concentration and the operation of gathering the gas sample are comparatively loaded down with trivial details.
The invention discloses a portable gas collecting device, which is disclosed in the Chinese patent with the application number of 201811341657.9, wherein a split charging device is arranged on the wall of a collecting cylinder, and the split charging device is complex in structure and inconvenient to operate.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the technical problem and providing a convenient gas sampling ware of colliery underground positive pressure formula, improve work efficiency.
The utility model provides a technical scheme that its technical problem adopted is:
a positive pressure type convenient gas sampler for a coal mine underground comprises a circular air cylinder, wherein a sealing piston is arranged in the air cylinder, the sealing piston is fixedly connected with one end of a piston rod, the other end of the piston rod extends out of one port of the air cylinder, the other port of the air cylinder is communicated with a third port of a three-way joint, a first one-way check valve and a second one-way check valve are respectively installed on a first port and a second port of the three-way joint, and the installation directions of the first one-way check valve and the second one-way check valve are opposite; the outer port of the first one-way check valve is an air inlet port, and an air filter element is installed at the outer port of the first one-way check valve.
Adopt above-mentioned technical scheme the utility model discloses compare with prior art, beneficial effect is:
the time for collecting the underground manual gas sample of the coal mine is shortened, the working efficiency is improved, and the safety risk is reduced; the air filter element filters dust, and the cleanliness of the gas to be detected is guaranteed.
Further, the utility model discloses an optimization scheme is:
the piston rod is provided with scales, and the outer end of the piston rod is provided with a disc-shaped handle.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
in the figure: a handle 1; a piston rod 2; an air cylinder 3; a sealing piston 4; a three-way joint 5; a first port 5-1; a second port 5-2; a third port 5-3; a first one-way check valve 6; a second one-way check valve 7; an air filter element 8; and an end cap 9.
Detailed Description
The present invention will be further described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1, the embodiment is a positive pressure type convenient gas sampler for a coal mine underground, and the sampler comprises a handle 1, a piston rod 2, an air cylinder 3, a sealing piston 4, a three-way joint 5, a first one-way check valve 6, a second one-way check valve 7, an air filter element 8 and the like. The inflator 3 is circular, two ends of the inflator are open, an end cover 9 is arranged at the left end of the inflator 3, a sealing piston 4 is arranged in the inflator 3, the sealing piston 4 is fixedly connected with the right end of the piston rod 2, the left end of the piston rod 2 extends out of the end cover 9, the piston rod 2 is provided with scales, and a disc-shaped handle 1 is arranged at the left end of the piston rod 2.
A three-way joint 5 is installed at the right end opening of an air cylinder 3, a channel where three end openings of the three-way joint 5 are located is of a T-shaped structure, the air cylinder 3 is communicated with a third end opening 5-3 of the three-way joint 5, an annular structure is arranged on the outer peripheral surface of the three-way joint 5 where the third end opening 5-3 is located, the right end opening of the air cylinder 3 is arranged in the annular structure, a second one-way check valve 7 is installed at the second end opening 5-2 of the three-way joint 5, a first one-way check valve 6 is installed at the first end opening 5-1 of the three-way joint 5, and the installation directions of the first one-. The outer port of first one-way check valve 6 is the inlet port, and the outer port of second one-way check valve 7 is the port of giving vent to anger, and air filter 8 is installed to the outer port of first one-way check valve 6, and air filter 8 filters the dust, guarantees to detect the cleanliness factor of gaseous.
The using process of the embodiment is as follows: the handle 1 is pulled, the sealing piston 4 moves from inside to outside, the first one-way check valve 6 is opened, the gas enters the gas cylinder 3 through the air filter element 8 and the first one-way check valve 6, and a certain amount of gas to be detected is extracted; and (3) pushing the scale handle 1 to discharge the gas to be detected from the second one-way check valve 7 to the gas detection container, so as to complete gas sample collection and gas concentration determination. When the gas sample is collected, the scale handle 1 is pushed and pulled circularly, and the gas sample can be collected for a plurality of times. The first check valve 6 and the second check valve 7 are switchable to each other to change the positions of the inlet and outlet ports according to the usage habit.
The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents made by using the contents of the specification and drawings are included in the scope of the present invention.
Claims (2)
1. The utility model provides a convenient gas sampling ware of colliery underground positive pressure formula, includes the circular shape inflator, is equipped with sealed piston in the inflator, the one end rigid coupling of sealed piston and piston rod, and a port of inflator, its characterized in that are stretched out to the other end of piston rod: the other port of the air cylinder is communicated with a third port of the three-way joint, a first one-way check valve and a second one-way check valve are respectively arranged on a first port and a second port of the three-way joint, and the installation directions of the first one-way check valve and the second one-way check valve are opposite; the outer port of the first one-way check valve is an air inlet port, and an air filter element is installed at the outer port of the first one-way check valve.
2. The coal mine underground positive pressure type convenient gas sampler according to claim 1, characterized in that: the piston rod is provided with scales, and the outer end of the piston rod is provided with a disc-shaped handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021845965.8U CN212932092U (en) | 2020-08-30 | 2020-08-30 | Coal mine underground positive pressure type convenient gas sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021845965.8U CN212932092U (en) | 2020-08-30 | 2020-08-30 | Coal mine underground positive pressure type convenient gas sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212932092U true CN212932092U (en) | 2021-04-09 |
Family
ID=75301230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021845965.8U Expired - Fee Related CN212932092U (en) | 2020-08-30 | 2020-08-30 | Coal mine underground positive pressure type convenient gas sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212932092U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115792118A (en) * | 2022-12-01 | 2023-03-14 | 应急管理部研究中心 | Gas sample collecting and analyzing device for coal mine underground goaf |
-
2020
- 2020-08-30 CN CN202021845965.8U patent/CN212932092U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115792118A (en) * | 2022-12-01 | 2023-03-14 | 应急管理部研究中心 | Gas sample collecting and analyzing device for coal mine underground goaf |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210409 Termination date: 20210830 |