CN216043837U - Explosion-proof air door suitable for use in pit - Google Patents
Explosion-proof air door suitable for use in pit Download PDFInfo
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- CN216043837U CN216043837U CN202121836630.4U CN202121836630U CN216043837U CN 216043837 U CN216043837 U CN 216043837U CN 202121836630 U CN202121836630 U CN 202121836630U CN 216043837 U CN216043837 U CN 216043837U
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- door frame
- rotary table
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Abstract
The utility model provides an explosion-proof air door suitable for underground use, which is characterized in that an explosion-proof device is arranged between a door plate and a door frame, a rotary disc with a throwing block and an outer ring with internal teeth are arranged in the explosion-proof device, the door plate is quickly opened when explosion shock waves impact the door plate, a rope drives a rotary rod to quickly rotate the rotary disc, so that the throwing block is thrown out from a notch of the rotary disc under the centrifugal action, and the opening size between the door plate and the door frame is quickly locked through the meshing of convex teeth on the throwing block and the internal teeth of the outer ring, so that the blocking and the isolation can be carried out in the process of transmitting the explosion shock waves, the explosion range can be furthest reduced in the initial explosion stage, the life health of personnel is protected, and the property loss is recovered.
Description
Technical Field
The utility model belongs to the technical field of underground safety, and particularly relates to an explosion-proof air door suitable for underground use.
Background
The coal mine underground explosion accidents are frequent, and shock waves generated by explosion can harm the life health of operating personnel and are one of the most main factors for damaging underground equipment.
Therefore, it is desirable to provide a damper structure that can block and isolate the blast shock wave during its propagation, minimize the explosion range in the initial stage of explosion, protect the life health of personnel, and recover property loss.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an explosion-proof air door suitable for underground use, aiming at the defects in the prior art.
Therefore, the above purpose of the utility model is realized by the following technical scheme:
the utility model provides an explosion-proof air door suitable for use in pit, explosion-proof air door includes door plant and door frame, its characterized in that: an explosion-proof device and a rope are arranged between the door plate and the door frame, and the explosion-proof device is fixed on the door plate or a wall body where the door frame is located;
the explosion-proof device comprises an outer ring and a rotary table arranged in the center of the outer ring, the outer ring is fixed, the rotary table rotates relative to the outer ring, inner teeth are arranged on the inner circumference of the outer ring, a gap is formed between the outer circumference of the rotary table and the inner circumference of the outer ring, a notch for accommodating a throwing block is arranged on the circumference of the rotary table, one end of the throwing block is rotatably connected onto the rotary table, the other end of the throwing block is a free end, a convex tooth is arranged on one side, facing the outer ring, of the free end of the throwing block, the convex tooth on the throwing block can be meshed with the inner teeth of the outer ring, a rotary rod is arranged on the upper surface of the rotary table, a rope is wound on the rotary rod, and the other end of the rope is fixed onto a door frame or a door panel.
While adopting the technical scheme, the utility model can also adopt or combine the following technical scheme:
as a preferred technical scheme of the utility model: the explosion-proof device further comprises a base plate, wherein the outer ring and the rotary table are both arranged on the base plate, and the base plate is fixed on the door plate or a wall where the door frame is located.
As a preferred technical scheme of the utility model: the inner surface of the rotary table is provided with a rotary column which is fixed with the rotary table.
As a preferred technical scheme of the utility model: the inner surface of the rotary table is provided with a bearing, a rotary column penetrates through the bearing, and the other end of the rotary column is fixed to a door plate or a wall body where a door frame is located or a base plate.
As a preferred technical scheme of the utility model: the door plate, the door frame or the wall body where the door frame is located is provided with a through ring, a rope penetrates through the through ring, and the through ring is used for changing the unfolding direction of the rope.
As a preferred technical scheme of the utility model: a plurality of fixing holes are formed in the outer ring and used for allowing fixing screws to penetrate through.
The utility model provides an explosion-proof air door suitable for underground use, which is characterized in that an explosion-proof device is arranged between a door plate and a door frame, a rotary disc with a throwing block and an outer ring with internal teeth are arranged in the explosion-proof device, the door plate is quickly opened when explosion shock waves impact the door plate, a rope drives a rotary rod to quickly rotate the rotary disc, so that the throwing block is thrown out from a notch of the rotary disc under the centrifugal action, and the opening size between the door plate and the door frame is quickly locked through the meshing of convex teeth on the throwing block and the internal teeth of the outer ring, so that the blocking and the isolation can be carried out in the process of transmitting the explosion shock waves, the explosion range can be furthest reduced in the initial explosion stage, the life health of personnel is protected, and the property loss is recovered.
Drawings
FIG. 1 is a schematic representation of an explosion vent door adapted for downhole use provided by the present invention.
Fig. 2 is a front view of the explosion-proof device.
FIG. 3 is a side cross-sectional view of the explosion proof device.
Detailed Description
The utility model is described in further detail with reference to the figures and specific embodiments.
An explosion-proof air door suitable for underground use comprises a door panel 110 and a door frame 120, wherein an explosion-proof device 200 and a rope 130 are arranged between the door panel 110 and the door frame 120, and the explosion-proof device 200 is fixed on the door panel 110 or a wall body on which the door frame 120 is arranged;
the explosion-proof device 200 comprises an outer ring 210 and a rotary disc 220 arranged in the center of the outer ring 210, the outer ring 210 is fixed, the rotary disc 220 rotates relative to the outer ring 210, inner teeth 211 are arranged on the inner circumference of the outer ring 210, a gap 230 is formed between the outer circumference of the rotary disc 220 and the inner circumference of the outer ring 210, a notch 221 for accommodating a throwing block 222 is arranged on the circumference of the rotary disc 220, one end of the throwing block 222 is rotatably connected to the rotary disc 220, the other end of the throwing block 222 is a free end, one side, facing the outer ring 210, of the free end of the throwing block 222 is provided with a convex tooth 222a, the convex tooth 222a on the throwing block 222 can be meshed with the inner teeth 211 of the outer ring 210, a rotary rod 223 is arranged on the upper surface of the rotary disc 220, a rope 130 is wound on the rotary rod 223, and the other end of the rope 130 is fixed on the door frame 120 or the door panel 110.
In this embodiment: the explosion-proof device 200 further includes a base plate 240, and the outer ring 210 and the turntable 220 are all disposed on the base plate 240, and the base plate 240 is fixed to the door panel 110 or a wall where the door frame 120 is located.
In this embodiment: the inner surface of the turntable 220 is provided with a rotary column 224, the rotary column 224 is fixed with the turntable 220, and the other end of the rotary column 224 and the wall body or the substrate 240 where the door panel 110 or the door frame 120 is located can rotate relatively; or in other embodiments: the inner surface of the turntable 220 is provided with a bearing, a rotating column 224 is arranged on the bearing in a penetrating way, and the other end of the rotating column 224 is fixed on the door panel 110 or the wall body on which the door frame 120 is arranged or the base plate 240.
In this embodiment: a through ring 131 is provided on the door frame 120, the rope 130 is passed through the through ring, and the through ring 131 is used for changing the unfolding direction of the rope 130. Of course, in other embodiments, a grommet may be disposed on the wall where the door panel 110 or the door frame 120 is located.
A plurality of fixing holes 212 are disposed on the outer ring 210, and the fixing holes 212 are used for passing fixing screws 212a, such as: the outer ring 210 is directly fixed to the door panel 110 or the wall on which the doorframe 120 is located or the substrate 240.
The utility model provides an explosion-proof air door suitable for underground use, which is characterized in that an explosion-proof device is arranged between a door plate and a door frame, a rotary disc with a throwing block and an outer ring with internal teeth are arranged in the explosion-proof device, the door plate is quickly opened when explosion shock waves impact the door plate, a rope drives a rotary rod to quickly rotate the rotary disc, so that the throwing block is thrown out from a notch of the rotary disc under the centrifugal action, and the opening size between the door plate and the door frame is quickly locked through the meshing of convex teeth on the throwing block and the internal teeth of the outer ring, so that the blocking and the isolation can be carried out in the process of transmitting the explosion shock waves, the explosion range can be furthest reduced in the initial explosion stage, the life health of personnel is protected, and the property loss is recovered.
The above-described embodiments are intended to illustrate the present invention, but not to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit of the present invention and the scope of the claims fall within the scope of the present invention.
Claims (6)
1. The utility model provides an explosion-proof air door suitable for use in pit, explosion-proof air door includes door plant and door frame, its characterized in that: an explosion-proof device and a rope are arranged between the door plate and the door frame, and the explosion-proof device is fixed on the door plate or a wall body where the door frame is located;
the explosion-proof device comprises an outer ring and a rotary table arranged in the center of the outer ring, the outer ring is fixed, the rotary table rotates relative to the outer ring, inner teeth are arranged on the inner circumference of the outer ring, a gap is formed between the outer circumference of the rotary table and the inner circumference of the outer ring, a notch for accommodating a throwing block is arranged on the circumference of the rotary table, one end of the throwing block is rotatably connected onto the rotary table, the other end of the throwing block is a free end, a convex tooth is arranged on one side, facing the outer ring, of the free end of the throwing block, the convex tooth on the throwing block can be meshed with the inner teeth of the outer ring, a rotary rod is arranged on the upper surface of the rotary table, a rope is wound on the rotary rod, and the other end of the rope is fixed onto a door frame or a door panel.
2. An explosion vent door adapted for downhole use according to claim 1, wherein: the explosion-proof device further comprises a base plate, wherein the outer ring and the rotary table are both arranged on the base plate, and the base plate is fixed on the door plate or a wall where the door frame is located.
3. An explosion vent door adapted for downhole use according to claim 1 or 2, wherein: the inner surface of the rotary table is provided with a rotary column which is fixed with the rotary table.
4. An explosion vent door adapted for downhole use according to claim 1 or 2, wherein: the inner surface of the rotary table is provided with a bearing, a rotary column penetrates through the bearing, and the other end of the rotary column is fixed to a door plate or a wall body where a door frame is located or a base plate.
5. An explosion vent door adapted for downhole use according to claim 1, wherein: the door plate, the door frame or the wall body where the door frame is located is provided with a through ring, a rope penetrates through the through ring, and the through ring is used for changing the unfolding direction of the rope.
6. An explosion vent door adapted for downhole use according to claim 1, wherein: a plurality of fixing holes are formed in the outer ring and used for allowing fixing screws to penetrate through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121836630.4U CN216043837U (en) | 2021-08-09 | 2021-08-09 | Explosion-proof air door suitable for use in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121836630.4U CN216043837U (en) | 2021-08-09 | 2021-08-09 | Explosion-proof air door suitable for use in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216043837U true CN216043837U (en) | 2022-03-15 |
Family
ID=80557556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121836630.4U Active CN216043837U (en) | 2021-08-09 | 2021-08-09 | Explosion-proof air door suitable for use in pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216043837U (en) |
-
2021
- 2021-08-09 CN CN202121836630.4U patent/CN216043837U/en active Active
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