CN222991558U - Mining explosion-proof cover device - Google Patents
Mining explosion-proof cover device Download PDFInfo
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- CN222991558U CN222991558U CN202422204790.7U CN202422204790U CN222991558U CN 222991558 U CN222991558 U CN 222991558U CN 202422204790 U CN202422204790 U CN 202422204790U CN 222991558 U CN222991558 U CN 222991558U
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Abstract
本公开涉及一种矿用防爆盖装置，该装置包括两个盖板，共同盖设于井口，两个盖板在井口的中部铰接并形成固定侧，两个盖板的与固定侧相对的活动侧能够相向运动以打开井口；安装架；以及配重机构，包括两个滑轮组和两个配重锤，两个滑轮组和两个配重锤分别与两个盖板一一对应设置，滑轮组包括绳索和与安装架转动连接的第一滑轮，绳索的一端与盖板连接，另一端绕设过第一滑轮并与配重锤连接。当矿井发生瓦斯或煤尘爆炸时，冲击波会推动两个盖板的活动侧相向打开，使盖板可以给冲击波向上的路径让位，避免冲击波给盖板造成较大变形和移位，保证盖板复位后仍可以继续使用。
The present disclosure relates to a mine explosion-proof cover device, which includes two cover plates, which are jointly covered on the wellhead, the two cover plates are hinged in the middle of the wellhead to form a fixed side, and the movable sides of the two cover plates opposite to the fixed side can move toward each other to open the wellhead; a mounting frame; and a counterweight mechanism, including two pulley blocks and two counterweight hammers, the two pulley blocks and the two counterweight hammers are respectively arranged in a one-to-one correspondence with the two cover plates, the pulley block includes a rope and a first pulley rotatably connected to the mounting frame, one end of the rope is connected to the cover plate, and the other end is wound around the first pulley and connected to the counterweight hammer. When a gas or coal dust explosion occurs in the mine, the shock wave will push the movable sides of the two cover plates to open toward each other, so that the cover plates can give way to the upward path of the shock wave, avoiding the shock wave from causing large deformation and displacement to the cover plates, and ensuring that the cover plates can continue to be used after being reset.
Description
Technical Field
The disclosure relates to the technical field of explosion-proof covers, in particular to a mining explosion-proof cover device.
Background
The explosion-proof cover is one of the main components of the ventilation safety facility of the coal mine and is arranged at the wellhead of the return air vertical shaft. Under normal conditions, the explosion-proof cover is freely arranged on the air shaft locking plate, and when a gas or coal dust explosion accident occurs underground, the explosion-proof cover is jacked by high-pressure air flow so as to reduce air flow pressure, thereby protecting the ventilator from being damaged.
In the related art, the explosion-proof cover is of a buckling cap type structure, specifically, the explosion-proof cover can move upwards under the impact of gas or coal dust explosion so as to be far away from a wellhead, so that shock waves can leave a mine, but the explosion-proof cover can deform or shift to a greater extent in the mode, and the explosion-proof cover cannot be reused.
Disclosure of utility model
It is an object of the present disclosure to provide a mining explosion proof cover device to at least partially solve the problems in the related art.
To achieve the above object, the present disclosure provides a mining explosion-proof cover device, including:
The two cover plates are jointly covered on the wellhead, the two cover plates are hinged in the middle of the wellhead and form a fixed side, and movable sides of the two cover plates, which are opposite to the fixed side, can move in opposite directions to open the wellhead;
A mounting frame, and
The counterweight mechanism comprises two pulley blocks and two counterweight hammers, wherein the two pulley blocks and the two counterweight hammers are respectively arranged in one-to-one correspondence with the two cover plates, the pulley blocks comprise ropes and first pulleys rotationally connected with the mounting frame, one ends of the ropes are connected with the cover plates, and the other ends of the ropes are wound around the first pulleys and connected with the counterweight hammers.
Optionally, the mounting frame is located on the axis of the middle part of the wellhead, and the two first pulleys are coaxially arranged and rotatably mounted on the mounting frame.
Optionally, the number of the counterweight mechanism and the number of the mounting frames are two, and the counterweight mechanism and the mounting frames are respectively mounted on two sides of the cover plate in the length direction.
Optionally, a buffer mechanism is arranged on the top surface of at least one of the two cover plates, and the buffer mechanism is used for buffering the abutting force of the two cover plates.
Optionally, the buffer mechanism comprises a plurality of springs and a plurality of rubber pieces, and the springs and the rubber pieces are distributed on the cover plate at intervals.
Optionally, the well head is configured as square, the mining explosion-proof cover device further comprises two supporting plates respectively arranged on two sides of the cover plate in the length direction, the two supporting plates are fixedly connected with the well head, the supporting plates are configured as triangles, the cover plate is configured as square, and when the cover plate is closed, the cover plate is lapped on two sides of the triangle.
Optionally, the mining explosion-proof cover device further comprises a fixing rod, two ends of the fixing rod are respectively connected with the two supporting plates, and the two cover plates are hinged at the fixing rod.
Optionally, sealing strips are installed on two sides of the cover plate in the length direction, and when the cover plate is covered, the sealing strips are attached to the supporting plates.
Optionally, the mining explosion-proof cover device further comprises two driving motors, the two driving motors are respectively arranged in one-to-one correspondence with the two ropes, a second pulley is installed at the rotating end of each driving motor, and the ropes penetrate through the counterweight hammer and then are connected with the second pulley.
Optionally, the mining explosion-proof cover device further comprises two pressing blocks, the two pressing blocks are respectively arranged in one-to-one correspondence with the two cover plates, and the pressing blocks can selectively press the cover plates when the cover plates are closed.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
When gas or coal dust explosion occurs in the mine, the shock waves can push the movable sides of the two cover plates to open in opposite directions, so that the cover plates can give way to the upward path of the shock waves, the cover plates are prevented from being deformed and shifted greatly by the shock waves, and the cover plates can be ensured to be used continuously after being reset. Because the cover plate is connected with the counterweight hammer through the rope and the first pulley, the counterweight hammer can be linked with the cover plate, so that downward force borne by the cover plate in the rotating and closing process can be reduced, violent collision between the cover plate and the wellhead is avoided, and further, the cover plate can be continuously used after being reset.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
Fig. 1 is a schematic view of a mining explosion proof cover device in a covered state according to an exemplary embodiment of the present disclosure.
Fig. 2 is a side view of a mining explosion proof cover device shown in a covered state according to an exemplary embodiment of the present disclosure.
Fig. 3 is a top view of a mining explosion proof cover device shown in a covered state according to an exemplary embodiment of the present disclosure.
Fig. 4 is a schematic view of a mining explosion proof cover device in an open state according to an exemplary embodiment of the present disclosure.
Description of the reference numerals
10. 100 Parts of wellhead, 100 parts of cover plate, 200 parts of mounting frame, 300 parts of counterweight mechanism, 310 parts of pulley block, 311 parts of rope, 312 parts of first pulley, 320 parts of counterweight hammer, 400 parts of buffer mechanism, 510 parts of supporting plate, 520 parts of fixing rod, 600 parts of driving motor, 610 parts of second pulley, 710 parts of pressing block.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
In the present disclosure, unless otherwise indicated, terms of orientation such as "upper, lower, top" are used for convenience in description of the orientation of the drawings with respect to each other, and "inner, outer" are defined with respect to the outline of the corresponding component itself. The terms such as "first, second," and the like, as used in this disclosure, are used for distinguishing one element from another and not necessarily for order or importance. Furthermore, when the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise indicated.
Referring to fig. 1 to 4, the disclosed embodiment provides a mining explosion-proof cover device, which includes a mounting frame 200, a weight mechanism 300, and two cover plates 100. The two cover plates 100 may be jointly covered on the wellhead 10, the two cover plates 100 are hinged at the middle of the wellhead 10 and form a fixed side, and movable sides of the two cover plates 100 opposite to the fixed side can move towards each other to open the wellhead 10. The counterweight mechanism 300 may include two pulley blocks 310 and two counterweight hammers 320, the two pulley blocks 310 and the two counterweight hammers 320 may be disposed in one-to-one correspondence with the two cover plates 100, the pulley blocks 310 may include a rope 311 and a first pulley 312 rotatably connected with the mounting frame 200, one end of the rope 311 may be connected with the cover plate 100, the other end may bypass the first pulley 312 and be connected with the counterweight hammers 320, and further, the rope 311 may be connected with a hinge portion of the cover plate 100 away from the middle of the wellhead 10.
It can be understood that when gas or coal dust explosion occurs in the mine, the impact waves push the movable sides of the two cover plates 100 to open in opposite directions, so that the cover plates 100 can give way to the upward path of the impact waves, thereby avoiding the impact waves from causing larger deformation and displacement to the cover plates 100, and ensuring that the cover plates 100 can still be used continuously after being reset. Because the cover plate 100 is connected with the counterweight 320 through the rope 311 and the first pulley 312, the counterweight 320 can be linked with the cover plate 100, so that downward force applied to the cover plate 100 in the rotating and closing process can be reduced, violent collision between the cover plate 100 and the wellhead 10 is avoided, and further, the cover plate 100 can be still used continuously after being reset.
In an embodiment, the mounting frame 200 may be located on the axis of the middle of the wellhead 10, and the two first pulleys 312 may be coaxially arranged and rotatably mounted on the mounting frame 200, so that a rotation shaft for connecting one first pulley 312 with the mounting frame 200 is saved, and it is ensured that the two cover plates 100 may be in a vertical state under the pushing of the shock wave. Specifically, because both the cover plates 100 are hinged to the middle of the wellhead 10, and the mounting frame 200 hinged to the two first pulleys 312 may be located on the axis of the middle of the wellhead 10, both the cover plates 100 may rotate upward to be parallel to the mounting frame 200 under the action of the shock wave, i.e., both the cover plates 100 are vertical to the wellhead 10 at this time, so as to avoid excessive interference of the cover plates 100 to the upward path of the shock wave, and thus avoid deformation and displacement of the cover plates 100 caused by the shock wave.
It should be noted that under normal conditions, the mine can draw the wind in the mine to the outside of mine under the effect of air exhauster, and the pull-out ventilation can reduce ground temperature and humidity, makes the working environment of miner more comfortable, and the inside atmospheric pressure of mine is less than the outside atmospheric pressure of mine this moment. When gas or coal dust explosion occurs in the mine, the air pressure in the mine is far greater than the air pressure outside the mine, and the exhaust fan cannot rotate reversely in the moment, so that the exhaust fan is damaged, and the cover plate 100 and the counterweight mechanism 300 are arranged, so that shock waves generated when the gas or the coal dust explodes can leave the mine, and the influence of the gas or the coal dust explosion on the exhaust fan is avoided.
In an embodiment, the number of the weight mechanism 300 and the number of the mounting frames 200 may be two, and the weight mechanism and the mounting frames may be respectively installed at two sides of the cover plate 100 in the length direction, so as to ensure that two sides of the cover plate 100 can synchronously rotate and descend. At the same time, one of the two weight mechanisms 300 is damaged, and the other weight mechanism 300 can still function, namely, the cover plate 100 can be slowly lowered, so that damage to the wellhead 10 due to too high lowering speed of the cover plate 100 is avoided.
In an embodiment, the top surface of at least one of the two cover plates 100 may be provided with a buffer mechanism 400, and the buffer mechanism 400 may be used to buffer the force of the two cover plates 100 against each other, so as to avoid deformation of the two cover plates 100 due to mutual collision. The top surface of the cover plate 100 refers to the side of the cover plate 100 that is remote from the wellhead 10 when the cover plate 100 is positioned on the wellhead 10.
In this embodiment, the top surfaces of the two cover plates 100 are provided with the buffer mechanisms 400, so that the abutting force between the two cover plates 100 can be further slowed down by arranging the two groups of buffer mechanisms 400, and deformation of the cover plates 100 is avoided.
In one embodiment, the buffer mechanism 400 may include a plurality of springs and a plurality of rubber members, and the plurality of springs and the plurality of rubber members may be spaced apart on the cover plate 100. Impact energy is absorbed through compression of the spring, and the device has the advantages of simple structure, reliable use and convenient maintenance. Both the spring and the rubber member can cushion the abutment force between the two cover plates 100.
In another embodiment, the buffer mechanism 400 may be a hydraulic buffer, and absorbs impact energy through liquid flow, so that the buffer mechanism has a large energy absorbing capacity and works stably and reliably.
In an embodiment, the wellhead 10 may be configured as a square, the mining explosion-proof cover device may further include two supporting plates 510 respectively disposed on two sides of the length direction of the cover plate 100, reinforcing ribs may be disposed on the supporting plates 510, the two supporting plates 510 may be fixedly connected with the wellhead 10, the supporting plates 510 may be configured as a triangle, the cover plate 100 may be configured as a square, and when the cover plate 100 is closed, the cover plate 100 may overlap on two sides of the triangle, so as to avoid the two sides of the cover plate 100 from directly contacting the wellhead 10, thereby avoiding the wellhead 10 from being crushed.
In an embodiment, the mining explosion-proof cover device may further include a fixing rod 520, two ends of the fixing rod 520 may be connected to the two supporting plates 510, respectively, and the two cover plates 100 may be hinged at the fixing rod 520, so as to prevent the cover plates 100 from wearing the supporting plates 510 during rotation. The fixing rod 520 may be square steel.
Further, the cover plate 100 is connected to the fixing rod 520 through a plurality of opening and closing hinges, and the stability and reliability of the connection between the cover plate 100 and the fixing rod 520 can be enhanced by providing a plurality of opening and closing hinges.
In an embodiment, the sealing strips can be installed on two sides of the cover plate 100 in the length direction, when the cover plate 100 is covered, the sealing strips can be attached to the supporting plates 510, so that the tightness between the cover plate 100 and the supporting plates 510 is ensured, and the situation that air in the mine leaves the mine through gaps between the supporting plates 510 and the cover plate 100 when the mine is in reverse air is avoided.
In an embodiment, the mining explosion-proof cover device may further include two driving motors 600, the two driving motors 600 may be respectively disposed in one-to-one correspondence with the two ropes 311, the second pulley 610 may be mounted at a rotating end of the driving motor 600, and the ropes 311 may be connected with the second pulley 610 after passing through the counter weight 320.
It will be appreciated that the drive motor 600 is inactive when a gas or coal dust explosion occurs in the mine. When the cover plate 100 needs to be overhauled, the driving motor 600 rotates to pull the counter weight 320 to move downwards, so that the cover plate 100 rotates upwards to an overhauling position.
In an embodiment, the mining explosion-proof cover device may further include two pressing blocks 710, the two pressing blocks 710 may be respectively disposed in one-to-one correspondence with the two cover plates 100, and the pressing blocks 710 may be capable of selectively pressing the cover plates 100 when the cover plates 100 are closed.
It will be appreciated that the mine is normally vented outwardly and that one end of the briquette 710 need not abut the cover plate 100. When the mine needs to blow inwards (i.e. against the wind) through the exhaust fan, one end of the pressing block 710 needs to be abutted against the cover plate 100 during the against the wind, so that the wind in the mine is prevented from leaving the mine through the gap between the cover plate 100 and the wellhead 10. After the mine is over against the wind, the pressing block 710 is not abutted with the cover plate 100, so that when the mine is subjected to gas explosion, the cover plate 100 can be timely opened for pressure relief.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the embodiments described above, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (10)
1. An explosion-proof cover device for mines, which is characterized by comprising:
The two cover plates are jointly covered on the wellhead, the two cover plates are hinged in the middle of the wellhead and form a fixed side, and movable sides of the two cover plates, which are opposite to the fixed side, can move in opposite directions to open the wellhead;
A mounting frame, and
The counterweight mechanism comprises two pulley blocks and two counterweight hammers, wherein the two pulley blocks and the two counterweight hammers are respectively arranged in one-to-one correspondence with the two cover plates, the pulley blocks comprise ropes and first pulleys rotationally connected with the mounting frame, one ends of the ropes are connected with the cover plates, and the other ends of the ropes are wound around the first pulleys and connected with the counterweight hammers.
2. The mining explosion proof cover device according to claim 1, wherein the mounting frame is located on an axis of a middle portion of the wellhead, and the two first pulleys are coaxially arranged and rotatably mounted on the mounting frame.
3. The mining explosion-proof cover device according to claim 1, wherein the number of the weight mechanism and the number of the mounting frames are two, and the weight mechanism and the mounting frames are respectively arranged on two sides of the cover plate in the length direction.
4. The mining explosion-proof cover device according to claim 1, wherein a buffer mechanism is arranged on the top surface of at least one of the two cover plates, and the buffer mechanism is used for buffering the abutting force of the two cover plates.
5. The mining explosion-proof cover device according to claim 4, wherein the buffer mechanism comprises a plurality of springs and a plurality of rubber pieces, and the springs and the rubber pieces are distributed on the cover plate at intervals.
6. The mining explosion-proof cover device according to claim 1, wherein the wellhead is configured to be square, the mining explosion-proof cover device further comprises two supporting plates which are respectively arranged on two sides of the cover plate in the length direction, the two supporting plates are fixedly connected with the wellhead, the supporting plates are configured to be triangular, the cover plate is configured to be square, and when the cover plate is closed, the cover plate is lapped on two sides of the triangle.
7. The mining explosion-proof cover device according to claim 6, further comprising a fixing rod, wherein two ends of the fixing rod are respectively connected with the two supporting plates, and the two cover plates are hinged at the fixing rod.
8. The mining explosion-proof cover device according to claim 6, wherein sealing strips are arranged on two sides of the cover plate in the length direction, and the sealing strips are attached to the supporting plates when the cover plate is covered.
9. The mining explosion-proof cover device according to claim 1, further comprising two driving motors, wherein the two driving motors are respectively arranged in one-to-one correspondence with the two ropes, a second pulley is arranged at the rotating end of each driving motor, and the ropes are connected with the second pulley after passing through the counterweight hammer.
10. The mining explosion-proof cover device according to claim 1, further comprising two pressing blocks, wherein the two pressing blocks are respectively arranged in one-to-one correspondence with the two cover plates, and the pressing blocks can selectively press the cover plates when the cover plates are closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422204790.7U CN222991558U (en) | 2024-09-09 | 2024-09-09 | Mining explosion-proof cover device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422204790.7U CN222991558U (en) | 2024-09-09 | 2024-09-09 | Mining explosion-proof cover device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222991558U true CN222991558U (en) | 2025-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422204790.7U Active CN222991558U (en) | 2024-09-09 | 2024-09-09 | Mining explosion-proof cover device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222991558U (en) |
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- 2024-09-09 CN CN202422204790.7U patent/CN222991558U/en active Active
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