Coal mine outburst prevention air door guide rail descending type reverse partition device

Abstract

The utility model discloses a coal mine prevents sudden wind door guide rail descending type reverse partition device, including support, support is installed in the both sides of belt conveyor, and the lower part of support adopts bolt fixed mounting lower part partition board, and the lower part partition board is opposite the belt conveyor, and the upper part of support is equipped with descending type partition board, and the both ends of descending type partition board are slidably connected with the inboard of support, and the back of descending type partition board is movably connected with trigger device, and the front end of trigger device is equipped with the push -back, when the explosion accident occurs, and the shock wave pushes the push -back and moves back and touches trigger device, and trigger device is released connection with descending type partition board, and descending type partition board immediately drops and is folded with lower part partition board, and the device is sensitive and reliable and the gap between partition board is small, and the facility air leakage condition is obviously reduced, can effectively partition equipment hole and prevent the backflow of toxic and harmful gas, prevent the accident disaster and expand.

Description

Technical Field

[0001] This utility model belongs to the technical field of underground safety equipment in coal mines, specifically relating to a reverse isolation device for a coal mine anti-outburst ventilation door guide rail descent. Background Technology

[0002] Reverse isolation devices must be installed in ventilation ducts, water ditches, scraper conveyor tracks, etc., passing through the reverse ventilation door wall. The currently used reverse isolation devices adopt a hinged connection, which is simple in structure, but the triggering device is unreliable, cumbersome and prone to failure, and has a large air leakage. When accidents such as coal and gas outbursts, dust or gas explosions occur underground, the isolation device holes are ineffective. Utility Model Content

[0003] The purpose of this invention is to provide a reverse isolation device with a guide rail descending type for coal mine anti-outburst ventilation doors, which solves the problems of unreliable triggering devices and poor isolation effect in existing isolation devices.

[0004] The technical solution adopted by this utility model is a coal mine anti-outburst ventilation door guide rail descending reverse isolation device, including a bracket, which is installed on both sides of the belt conveyor. The lower part of the bracket is fixedly installed with bolts, and the lower partition plate is directly opposite the belt conveyor. The upper part of the bracket is provided with a descending partition plate, the two ends of which are slidably connected to the inner side of the bracket. The back of the descending partition plate is movably connected to a triggering device. The front end of the triggering device is provided with a push plate. When an explosion accident occurs, the shock wave pushes the push plate to move backward and triggers the triggering device, and the triggering device is loosened from the descending partition plate.

[0005] Furthermore, the upper inner side of the aforementioned bracket is provided with guide rail grooves, and the two ends of the descending partition plate are provided with pulleys that are slidably connected to the guide rail grooves.

[0006] Furthermore, the aforementioned descending partition panel has a connecting plate on its back, and a mounting plate on the upper part of the bracket. A guide rod is vertically arranged outward from the upper part of the mounting plate. The guide rod has a cavity and a push rod is slidably connected within the cavity. The outer end of the push rod passes through the outer end of the guide rod and is fixedly connected to the push plate. A movable groove is provided at the lower part of the guide rod near its inner end. A triggering device is connected to the back of the mounting plate through a connecting ear plate. The connecting ear plate is located below the guide rod. The triggering device includes a support rod. The middle part of the support rod is hinged to the connecting ear plate. The head end of the support rod extends into the guide rod through the movable groove and is fixedly connected to a first limiting plate. The first limiting plate faces the push rod and is spaced a set distance from the push rod. A second limiting plate is provided at the end of the support rod facing the descending partition panel. The second limiting plate overlaps with the connecting plate.

[0007] Furthermore, the lower part of the aforementioned bracket is provided with multiple mounting holes spaced apart along its length, and bolts are used to fix the lower partition plate to the bracket through the mounting holes.

[0008] Furthermore, the bottom ends of the two supports on both sides of the aforementioned belt conveyor are connected by telescopic beams.

[0009] Furthermore, a groove is provided at the center of the top of the lower partition plate, and a protrusion is provided at the bottom of the descending partition plate corresponding to the groove. The descending partition plate descends and abuts against the lower partition plate, and the protrusion is embedded in the groove.

[0010] Furthermore, the aforementioned support structure is welded from 12# channel steel, and both the lower partition plate and the descending partition plate are made of 5mm iron plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are that it replaces the hinged partition device with a guide rail descending type. When an accident such as coal and gas outburst, dust or gas explosion occurs underground, the shock wave first impacts the push plate, causing it to move backward, which drives the push rod to push the first limiting plate backward. The support rod rotates under force, and the connection between the second limiting plate and the connecting plate is loosened. The descending partition plate immediately descends and closes with the lower partition plate. The triggering is sensitive and reliable, and the gap between the partition plates is small, which significantly reduces the air leakage of the facility. It can effectively isolate equipment holes, prevent the backflow of toxic and harmful gases, and prevent the expansion of accidents and disasters. Attached Figure Description

[0012] Figure 1 This is the front view of the drop-down partition device;

[0013] Figure 2 Left view of the drop-down partition device;

[0014] Figure 3 Top view of the drop-down partition device

[0015] Figure 4 A schematic diagram of the triggering device. Detailed Implementation

[0016] The present invention will be further explained below with reference to the accompanying drawings to enable those skilled in the art to better understand it.

[0017] Example 1

[0018] like Figure 1-4As shown, a coal mine anti-outburst ventilation door guide rail descending reverse isolation device includes a bracket 1, welded from 12# channel steel to ensure its stability. Two brackets 1 are installed on both sides of the belt conveyor. The lower part of the bracket 1 is bolted to install a lower partition plate 2, which faces the belt conveyor. The upper part of the bracket 1 is provided with a descending partition plate 3, the two ends of which are slidably connected to the inner side of the bracket 1. The back of the descending partition plate 3 is movably connected to a triggering device 4. The front end of the triggering device 4 is provided with a push plate 5. The lower partition... Both the partition plate 2 and the descending partition plate 3 are made of 5mm iron plate to ensure their strength, and the descending partition plate has sufficient gravity to support its rapid descent. In the event of an explosion, the shock wave pushes the push plate 5 backward to trigger the triggering device 4. The triggering device 4 is disconnected from the descending partition plate 3, and the descending partition plate 3 immediately descends and closes with the lower partition plate 2. The device is sensitive and reliable in triggering, and the gap between the partition plates is small, which significantly reduces the air leakage of the facility. It can effectively isolate equipment holes, prevent the backflow of toxic and harmful gases, and prevent the expansion of accidents and disasters.

[0019] Furthermore, the upper inner side of the bracket 1 is provided with guide rail grooves 101, and the two ends of the descending partition plate 3 are provided with pulleys 301 that are slidably connected to the guide rail grooves 101 to reduce the friction of the descending partition plate 3 as it slides down and increase the falling speed of the descending partition plate 3.

[0020] Furthermore, the aforementioned descending partition plate 3 has a connecting plate 302 on its back, and a mounting plate 6 on the upper part of the bracket 1. A guide rod 7 is vertically arranged outward on the upper part of the mounting plate 6. The guide rod 7 has a cavity and a push rod 8 is slidably connected in the cavity. The outer end of the push rod 8 passes through the outer end of the guide rod 7 and is fixedly connected to the push plate 5. The lower part of the guide rod 7 near its inner end has a movable groove 701. The back of the mounting plate 6 is connected to the trigger device 4 through a connecting ear plate 601. The connecting ear plate 601 is located below the guide rod 7. The trigger device 4 includes a support rod 401. The middle part of the support rod 401 is hinged to the connecting ear plate 601. The head end of the support rod 401 extends into the guide rod 7 through the movable groove 701 and is fixedly connected to the first limiting plate 402. The first limiting plate 402 faces the push rod 8 and is spaced a set distance from the push rod 8. The end of the support rod 401 faces the descending partition plate 3 and has a second limiting plate 403. The second limiting plate 403 overlaps with the connecting plate 302. When an accident such as a coal and gas outburst, dust or gas explosion occurs underground, the shock wave first impacts the push plate 5, causing it to move backward, which in turn drives the push rod 8 to push the first limiting plate 402 backward. The support rod 401 rotates under force, and the connection between the second limiting plate 403 and the connecting plate 302 is released. The descending partition plate 3 immediately descends under the action of gravity and closes with the lower partition plate 2.

[0021] In order to adjust the height of the lower partition plate 2 to suit on-site use, multiple mounting holes are provided at intervals along the length of the lower part of the bracket 1. Bolts are used to fix the lower partition plate 2 to the bracket 2 through the mounting holes. In order to adapt to the use of different machine models, the bottom ends of the two brackets on both sides of the belt conveyor are connected by telescopic beams 9, which can adjust the width of the bracket 1.

[0022] Furthermore, a groove 201 is provided at the center of the top of the lower partition plate 2, and a protrusion 303 is provided at the bottom of the descending partition plate 3 corresponding to the groove 201. After the trigger device is activated, the descending partition plate 3 descends and abuts against the lower partition plate 2. The protrusion 303 is embedded in the groove 201. The gap between the partition plates is small, which is conducive to maintaining the stable and reliable connection of the partition plates and reducing air leakage.

[0023] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from its design spirit and principles should fall within the protection scope defined by the claims of the present invention.

Claims

1. A reverse isolation device for a coal mine anti-outburst ventilation door guide rail descent type, characterized in that, The system includes a bracket (1), which is installed on both sides of the belt conveyor. The lower part of the bracket (1) is fixed with a lower partition plate (2) by bolts. The upper part of the bracket (1) is provided with a descending partition plate (3). The two ends of the descending partition plate (3) are slidably connected to the inner side of the bracket (1). The back of the descending partition plate (3) is movably connected to a triggering device (4). The front end of the triggering device (4) is provided with a push plate (5). When an explosion occurs, the shock wave pushes the push plate (5) to move backward and triggers the triggering device (4). The triggering device (4) is loosened from the descending partition plate (3). The back of the descending partition plate (3) is provided with a connecting plate (302). The upper part of the bracket (1) is provided with an mounting plate (6). The upper part of the mounting plate (6) is provided with a guide rod (7) that extends vertically outward. The guide rod (7) has a cavity and a push rod is slidably connected in the cavity. 8) The outer end of the push rod (8) passes through the outer end of the guide rod (7) and is fixedly connected to the push plate (5). The lower part of the guide rod (7) near the inner end is provided with a movable groove (701). The back of the mounting plate (6) is connected to the trigger device (4) through the connecting ear plate (601). The connecting ear plate (601) is located below the guide rod (7). The trigger device (4) includes a support rod (401). The middle part of the support rod (401) is hinged to the connecting ear plate (601). The head end of the support rod (401) extends into the guide rod (7) through the movable groove (701) and is fixedly connected to the first limiting plate (402). The first limiting plate (402) faces the push rod (8) and is spaced at a set distance from the push rod (8). The end of the support rod (401) faces the descending partition plate (3) and is provided with a second limiting plate (403). The second limiting plate (403) overlaps with the connecting plate (302).

2. The coal mine anti-outburst ventilation door guide rail descending reverse isolation device according to claim 1, characterized in that, The bracket (1) has a guide rail groove (101) on the upper inner side, and the descending partition plate (3) has pulleys (301) at both ends that are slidably connected to the guide rail groove (101).

3. The coal mine anti-outburst ventilation door guide rail descending reverse isolation device according to claim 1, characterized in that, The bracket (1) has multiple mounting holes spaced apart along its length at the bottom. Bolts are used to fix the lower partition plate (2) onto the bracket (1) through the mounting holes.

4. The coal mine anti-outburst ventilation door guide rail descending reverse isolation device according to claim 1, characterized in that, The bottom ends of the two supports (1) on both sides of the conveyor belt are connected by a telescopic beam (9).

5. A coal mine anti-outburst ventilation door guide rail descending type reverse isolation device according to claim 1, characterized in that, The lower partition plate (2) has a groove (201) at the center of its top. The bottom of the descending partition plate (3) has a protrusion (303) corresponding to the groove (201). The descending partition plate (3) descends and abuts against the lower partition plate (2), and the protrusion (303) is embedded in the groove (201).

6. The coal mine anti-outburst ventilation door guide rail descending type reverse isolation device according to claim 1, characterized in that, The bracket (1) is welded from 12# channel steel, and the lower partition plate (2) and the descending partition plate (3) are both made of 5mm iron plate.

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