CN214944412U - Gas extraction device for preventing coal and gas outburst - Google Patents
Gas extraction device for preventing coal and gas outburst Download PDFInfo
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- CN214944412U CN214944412U CN202121831609.5U CN202121831609U CN214944412U CN 214944412 U CN214944412 U CN 214944412U CN 202121831609 U CN202121831609 U CN 202121831609U CN 214944412 U CN214944412 U CN 214944412U
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- gas
- connecting pipe
- sliding sleeve
- extraction
- extraction device
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Abstract
The utility model relates to a gas draw-out device that prevention coal and gas are outstanding discloses one kind and can connect on gas draw-out device's extraction branch pipe, adjusts the draw-out device of extraction mouth size through adjusting the structure. Can carry out the extraction of great area to the gas of higher concentration, improve the extraction speed, in the connecting sleeve is arranged in to its characterized in that connecting pipe one end, solid fixed ring has been put to the other end, gu put a plurality of fixed ears along circumference equidistance on the fixed ring, it has the exhibition to receive the board to articulate between two adjacent fixed ears, it has elasticity gas collection cloth to put between two adjacent exhibition receipts boards, slip cap slidable cover is arranged in on the connecting pipe, a plurality of connecting rod one end is arranged in on the slip cap along circumference equidistance, and is articulated mutually through articulated ear and slip cap respectively, and the other end is articulated mutually through articulated ear and exhibition receipts respectively, and it has a plurality of draw-in grooves, a plurality of to open along axial direction equidistance on the connecting pipe lateral wall the draw-in groove is the hemisphere.
Description
Technical Field
The utility model relates to a gas extraction device of prevention coal and gas outburst relates to one kind and uses when prevention coal is outstanding with the gas, carries out the device that extracts to colliery gas, belongs to the mining equipment field. In particular to an extraction device which can be connected on an extraction branch pipe of a gas extraction device and can adjust the size of an extraction opening through an adjusting structure.
Background
The coal and gas outburst refers to the phenomenon that broken coal and gas are suddenly sprayed out to a mining space in a large amount from the inside of a coal body under the action of pressure, and is another type of gas special emission.
The publication number CN208456659U discloses a mining gas drainage device includes gas extraction person in charge, gas extraction branch pipe and concentrator, the concentrator includes concentrator main part and at least two branch pipe joints, have in the concentrator main part and collect the chamber, branch pipe joint is connected with the concentrator main part and with collect the chamber intercommunication, the concentrator main part is connected with the gas extraction person in charge, collect the chamber and be responsible for the intercommunication with the gas extraction, the device is through the gas extraction person in charge with the cooperation of gas extraction branch pipe carry out the extraction to gas, but when the gas concentration is great, the extraction opening of gas extraction branch pipe can not adjust the size and can not carry out the extraction of great area to gas of higher concentration, the extraction speed is slow, the extraction efficiency is low.
Disclosure of Invention
In order to improve the situation, the utility model relates to a gas extraction device that prevention coal and gas are outstanding provides one kind and can connect on gas extraction device's extraction branch pipe, adjusts the draw-out device of extraction mouth size through adjusting the structure. The gas with higher concentration can be extracted in a larger area, and the extraction speed is improved.
The utility model relates to a gas draw-out device that prevention coal and gas are outstanding realizes like this: the utility model relates to a gas extraction device for preventing coal and gas outburst, which consists of a connecting sleeve, a connecting pipe, a sliding sleeve, a connecting rod, an expansion plate, elastic gas-collecting cloth, a fixing ring, a spring, a clamping ball and clamping grooves, wherein one end of the connecting pipe is arranged in the connecting sleeve, the other end of the connecting pipe is provided with the fixing ring, a plurality of fixing lugs are arranged on the fixing ring along the circumferential direction at equal intervals, the expansion plate is hinged between two adjacent fixing lugs, the elastic gas-collecting cloth is arranged between two adjacent expansion plates, the sliding sleeve is slidably sleeved on the connecting pipe, one end of the connecting rods is arranged on the sliding sleeve along the circumferential direction at equal intervals and is hinged with the sliding sleeve through the hinging lugs respectively, the other end is hinged with the expansion plate through the hinging lugs respectively, a plurality of clamping grooves are arranged on the side wall of the connecting pipe along the axial direction at equal intervals, a plurality of the clamping grooves are hemispherical, the clamping ball is arranged in the clamping grooves, and a placing groove is arranged on the inner wall of the sliding sleeve, the placing groove is corresponding to the clamping groove, one end of the spring is fixedly connected with the inner wall of the top of the placing groove, the other end of the spring is fixedly connected with the clamping ball, the diameter of the pipe orifice of the connecting pipe is gradually increased from one end to the other end, and the sliding sleeve is provided with a pull ring.
Advantageous effects
The gas extraction device comprises a gas extraction device, a gas inlet, a gas outlet, a gas inlet, a gas outlet.
Secondly, the structure is simple, convenient and practical.
Thirdly, the cost is low, and the popularization is convenient.
Drawings
FIG. 1 is a perspective view of a gas extraction device for preventing coal and gas outburst;
FIG. 2 is a perspective exploded view of a gas extraction device of the present invention for preventing coal and gas outburst;
FIG. 3 is a schematic view of a gas extraction device for preventing coal and gas outburst according to the present invention;
FIG. 4 is a schematic structural view of a clamping structure of a gas extraction device for preventing coal and gas outburst;
fig. 5 is a perspective view of the gas extraction device for preventing coal and gas outburst.
In the attached drawings
Wherein the method comprises the following steps: the device comprises a connecting sleeve 1, a connecting pipe 2, a sliding sleeve 3, a connecting rod 4, a folding plate 5, elastic gas-collecting cloth 6, a fixing ring 7, a spring 8, a clamping ball 9 and a clamping groove 10.
The specific implementation mode is as follows:
the utility model relates to a gas draw-out device that prevention coal and gas are outstanding realizes like this: the utility model relates to a gas extraction device for preventing coal and gas outburst, which comprises a connecting sleeve 1, a connecting pipe 2, a sliding sleeve 3, connecting rods 4, expansion plates 5, elastic gas collection cloth 6, a fixing ring 7, a spring 8, clamping balls 9 and clamping grooves 10, wherein one end of the connecting pipe 2 is arranged in the connecting sleeve 1, the other end is provided with the fixing ring 7, the fixing ring 7 is provided with a plurality of fixing lugs along the circumferential direction at equal intervals, the expansion plates 5 are hinged between two adjacent fixing lugs, the elastic gas collection cloth 6 is arranged between two adjacent expansion plates 5, the sliding sleeve 3 is sleeved on the connecting pipe 2 in a sliding way, one end of each connecting rod 4 is arranged on the sliding sleeve 3 along the circumferential direction at equal intervals and is hinged with the sliding sleeve 3 through a hinge lug respectively, the other end is hinged with the expansion plates 5 through a hinge lug respectively, the side wall of the connecting pipe 2 is provided with a plurality of clamping grooves 10 along the axial direction at equal intervals, and a plurality of the clamping grooves 10 are hemispherical, the clamping ball 9 is arranged in the clamping groove 10, a placing groove is formed in the inner wall of the sliding sleeve 3 and corresponds to the clamping groove 10, one end of the spring 8 is fixedly connected with the inner wall of the top of the placing groove, the other end of the spring is fixedly connected with the clamping ball 9, the diameter of the pipe orifice of the connecting pipe 2 is gradually increased from one end to the other end, and a pull ring is arranged on the sliding sleeve 3;
when in use, the device is fixedly connected with the extraction branch pipe on the gas extraction device through the connecting sleeve 1, the expansion and contraction plate 5 and the elastic gas collection cloth 6 are in a contraction state in an initial state, when high-concentration gas needs to be extracted, the sliding sleeve 3 is pulled through the pull ring, the clamping ball 9 leaves the clamping groove 10 to slide on the side wall of the connecting pipe 2, the spring 8 is compressed, meanwhile, the sliding sleeve 3 drives the connecting rod 4 to move, the connecting rod 4 pulls the unfolding and folding plate 5 to unfold, the unfolding and folding plate 5 drives the elastic gas-collecting cloth 6 to unfold until the elastic gas-collecting cloth 6 unfolds to a proper size, the sliding sleeve 3 stops being pulled, the clamping ball 9 enters the clamping groove 10 under the action of the elastic restoring force of the spring 8, fix slip cap 3, then aim at the place that needs the gas extraction with the extraction mouth that elasticity gas collection cloth 6 and exhibition receipts board 5 formed, start gas extraction device and carry out the large tracts of land extraction to higher concentration gas.
The clamping ball 9 and the clamping groove 10 are matched with the sliding sleeve 3, so that the size of an extraction opening can be adjusted, and the gas with higher concentration can be extracted in a large area;
the design that the diameter of the pipe orifice of the connecting pipe 2 is gradually increased from one end to the other end can facilitate the gas to enter the connecting pipe 2 from the extraction port;
the sliding sleeve 3 is provided with a pull ring, and the pull ring is provided with a sweat absorbing pad, so that sweat on a hand can be absorbed while a person pulls the sliding sleeve 3 conveniently, and slipping is prevented;
the purpose that the gas extraction device can be connected to an extraction branch pipe of the gas extraction device and the size of an extraction opening is adjusted through an adjusting structure is achieved.
It should be noted that, unless otherwise specifically stated or limited, the terms "disposed on," "mounted," "connected" and "connected" are to be construed broadly and may include, for example, a fixed connection such as a crimped connection, a riveted connection, a pinned connection, an adhesive connection, a welded connection, a detachable connection such as a threaded connection, a snap connection, a hinged connection, an integral connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (4)
1. A gas extraction device for preventing coal and gas outburst is characterized in that: comprises a connecting sleeve, a connecting pipe, a sliding sleeve, connecting rods, unfolding and folding plates, elastic gas-collecting cloth, fixing rings, a spring, clamping balls and clamping grooves, wherein one end of the connecting pipe is arranged in the connecting sleeve, the other end of the connecting pipe is provided with the fixing rings, a plurality of fixing lugs are arranged on the fixing rings at equal intervals along the circumferential direction, the unfolding and folding plates are hinged between two adjacent fixing lugs, the elastic gas-collecting cloth is arranged between two adjacent unfolding and folding plates, the sliding sleeve is slidably sleeved on the connecting pipe, one ends of the connecting rods are arranged on the sliding sleeve at equal intervals along the circumferential direction, and are respectively hinged with the sliding sleeve through a hinge lug, the other end is respectively hinged with the unfolding and folding plate through the hinge lug, a plurality of clamping grooves are arranged on the side wall of the connecting pipe at equal intervals along the axial direction, the clamping balls are arranged in the clamping grooves, a placing groove is arranged on the inner wall of the sliding sleeve, the placing groove corresponds to the clamping groove, one end of the spring is fixedly connected with the inner wall of the top of the placing groove, and the other end of the spring is fixedly connected with the clamping ball.
2. The gas extraction device as claimed in claim 1, wherein the plurality of locking grooves are formed in a hemispherical shape.
3. The gas extraction device as recited in claim 1, wherein a pull ring is provided on the sliding sleeve.
4. The gas extraction device according to claim 1, wherein the diameter of the pipe orifice of the connection pipe gradually increases from one end to the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121831609.5U CN214944412U (en) | 2021-08-06 | 2021-08-06 | Gas extraction device for preventing coal and gas outburst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121831609.5U CN214944412U (en) | 2021-08-06 | 2021-08-06 | Gas extraction device for preventing coal and gas outburst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214944412U true CN214944412U (en) | 2021-11-30 |
Family
ID=79069033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121831609.5U Active CN214944412U (en) | 2021-08-06 | 2021-08-06 | Gas extraction device for preventing coal and gas outburst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214944412U (en) |
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2021
- 2021-08-06 CN CN202121831609.5U patent/CN214944412U/en active Active
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