Automatic acousto-optic early warning device for underground coal mine

Abstract

The utility model provides an automatic acousto-optic early warning device under a coal mine, which relates to the field of acousto-optic early warning devices and comprises an early warning device body, a buffer groove and a stabilizing groove are formed in the top of the early warning device body, a dust blocking mechanism is arranged on one side of an air suction port of the early warning device body, and a dust blocking mechanism is arranged on the other side of the air suction port of the early warning device body. The top of the early warning device body is provided with a compression-resistant mechanism. Air is sucked into the early warning device body, dust in the air is blocked by the dust filtering net, when the dust filtering net needs to be taken out for cleaning, a moving block is pushed to drive an extending plate to move, then a clamping block is driven to be away from the interior of a clamping groove, meanwhile, the clamping block extrudes a reset spring, the clamping block is away from the interior of the clamping groove, and therefore the dust filtering net is cleaned. The dust filtering frame gets rid of the limiting state, the dust filtering net can be conveniently taken out and cleaned, the complexity of replacing the dust filtering net in a dark well is reduced, the protection effect on the device is improved, and damage to the device caused by impact is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to acousto-optic early warning device technical field especially relates to a coal mine underground automatic acousto-optic early warning device. BACKGROUND

[0002] The coal mine underground acousto-optic early warning device is a kind of early warning device for coal mine underground, is placed in the area near possible dangerous area, such as gas accumulation zone, poor ventilation roadway, goaf edge etc., so as to send alarm in time when dangerous situation appears, remind personnel away.

[0003] In prior art, after the acousto-optic early warning device of the present is placed in gas accumulation zone, it needs to be inhaled in the area air induction, since it is in coal mine underground work, dust in air is more, the air inlet of the present is blocked by simple filter plate to dust in air, since filter plate is installed by screw, and the environment in underground is relatively dim, so that filter plate is inconvenient to disassemble and clean, secondly, since the shell structure of the early warning device of the present is relatively simple, impact is difficult to effectively buffer, and the early warning device is easily damaged. UTILITY MODEL CONTENT

[0004] The utility model discloses a coal mine underground automatic acousto-optic early warning device to solve the problem that filter plate is installed by screw in the background art, and the environment in underground is relatively dim, so that filter plate is inconvenient to disassemble and clean, secondly, since the shell structure of the early warning device of the present is relatively simple, impact is difficult to effectively buffer, and the early warning device is easily damaged.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme: including: early warning device body, the top of the early warning device body is equipped with buffer groove, the top of the early warning device body is equipped with stabilizing groove, the air inlet side of the early warning device body is provided with dust blocking mechanism, the dust blocking mechanism includes fixed frame, installation groove, positioning groove, installation port, clamping groove, dust filter frame, positioning lug, dust filter net, fixed block, spring groove, return spring, clamping block, extension port, extension plate and moving block, the top of the early warning device body is provided with pressure resistance mechanism, and the pressure resistance mechanism includes stabilizing rod, protective pressure resistance plate, moving rod, damping block and buffer spring.

[0006] As a preferred implementation, the air inlet side of the early warning device body is fixedly connected with one side of the fixed frame, and the installation groove is formed in the inside of the fixed frame, and the positioning groove is formed in the inner wall of the installation groove.

[0007] As a preferred implementation form, the inner wall of the fixing frame is provided with a mounting opening on both sides, and the inner wall of the mounting opening is provided with a clamping groove; the inner wall of the mounting groove is movably connected with the outer wall of the dust filtering frame.

[0008] As a preferred implementation form, the outer wall of the dust filtering frame is fixedly connected with one side of the positioning protrusion, and the outer wall of the positioning protrusion is movably connected with the inner wall of the positioning groove; the inner wall of the dust filtering frame is fixedly connected with the outer wall of the dust filtering net.

[0009] As a preferred implementation form, the inner wall of the dust filtering frame is fixedly connected with the outer wall of the fixing block on both sides, and the inner part of the fixing block is provided with a spring groove; one side of the spring groove is fixedly connected with one end of the reset spring.

[0010] As a preferred implementation form, the other end of the reset spring is fixedly connected with one side of the clamping block, and the outer wall of the clamping block is movably connected with the inner wall of the clamping groove; one side of the spring groove is provided with an extension opening.

[0011] One side of the clamping block is fixedly connected with one side of the extension plate, and the other side of the extension plate is fixedly connected with one side of the moving block; the outer wall of the extension plate is movably connected with the inner wall of the extension opening.

[0012] As a preferred implementation form, the inner wall of the buffer groove is movably connected with the outer wall of the stabilizing rod, and the top end of the stabilizing rod is fixedly connected with the bottom of the protective compression-resistant plate; the bottom of the protective compression-resistant plate is fixedly connected with the top end of the moving rod, and the bottom end of the moving rod is fixedly connected with the top end of the damping block; the bottom end of the damping block is fixedly connected with the top end of the buffer spring, and the bottom end of the buffer spring is fixedly connected with the inner bottom wall of the stabilizing groove; the outer wall of the damping block is movably connected with the inner wall of the stabilizing groove.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that:

[0014] 1、the dust in the air is blocked by the dust filtering net in the inside of the gas suction early warning device body, when the dust filtering net needs to be taken out for cleaning, the moving block is driven to move the extension plate, and then drives the clamping block to move away from the inside of the clamping groove, and the clamping block extrudes the reset spring, by the clamping block moving away from the inside of the clamping groove, the dust filtering frame is out of the limiting state, when the cleaned dust filtering net is installed, the dust filtering frame is put into the inside of the fixing frame through the positioning of the positioning groove and the positioning protrusion, and the fixing block enters the inside of the mounting opening, the clamping block enters the inside of the clamping groove through the reset of the reset spring, thereby stabilizing the dust filtering frame, the dust filtering net is conveniently taken out for cleaning, and the complexity of replacing the dust filtering net in the dim well is reduced.

[0015] 2. The utility model discloses, when the rockfall falls to the early warning device body, first be prevented and resist compression board and block, the protective compression -resistant board that is impacted moves downward, through the stabilization of stabilizer, drive mobile rod and damping block and move down, and the damping block moves and is attached to the inner wall of stable groove and extrudes the buffer spring, and the buffer spring is extruded to the impact force and buffers, and the protection effect of device is increased, and the damage that the impact causes to device is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model provides a kind of underground coal mine automatic sound-light early warning device structure schematic view;

[0017] Figure 2 The utility model provides a kind of underground coal mine automatic sound-light early warning device early warning device body schematic view;

[0018] Figure 3 The utility model provides a kind of underground coal mine automatic sound-light early warning device compression -resistant mechanism sectional view;

[0019] Figure 4 The utility model provides a kind of underground coal mine automatic sound-light early warning device fixed frame schematic view;

[0020] Figure 5 The utility model provides a kind of underground coal mine automatic sound-light early warning device dust filter frame sectional view.

[0021] Legend:

[0022] 1, early warning device body;2, buffer groove;3, stable groove;4, dust prevention mechanism;401, fixed frame;402, installation groove;403, positioning groove;404, installation port;405, clamping groove;406, dust filter frame;407, positioning lug;408, dust filter net;409, fixed block;410, spring groove;411, return spring;412, clamping block;413, extension port;414, extension plate;415, moving block;5, compression -resistant mechanism;501, stabilizer;502, protective compression -resistant board;503, mobile rod;504, damping block;505, buffer spring. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] Please refer to Figures 1-5The utility model provides a technical scheme: include: early warning device body 1, the top of early warning device body 1 is equipped with buffer groove 2, the top of early warning device body 1 is equipped with stable groove 3, and the air inlet side of early warning device body 1 is provided with dust prevention mechanism 4, dust prevention mechanism 4 includes fixed frame 401, installation groove 402, positioning groove 403, installation mouth 404, clamping groove 405, filter dust frame 406, positioning lug 407, filter dust net 408, fixed block 409, spring groove 410, reset spring 411, clamping block 412, extension mouth 413, extension plate 414 and moving block 415, and the top of early warning device body 1 is provided with pressure resistance mechanism 5, and pressure resistance mechanism 5 includes stabilizing lever 501, protective pressure resistance plate 502, moving lever 503, damping block 504 and buffer spring 505.

[0025] In one embodiment, the air inlet side of the early warning device body 1 is fixedly connected to one side of the fixed frame 401, and the inside of the fixed frame 401 is provided with an installation groove 402.

[0026] Specifically, the early warning device body 1 is internally provided with a gas concentration sensor, a controller and an audible and visual alarm. When the gas concentration is too high, the data is transmitted to the audible and visual alarm in the early warning device body 1 through the controller in the early warning device body 1, and then an alarm is issued.

[0027] In one embodiment, the inner wall of the fixed frame 401 is provided with installation openings 404 on both sides, and the inner wall of the installation opening 404 is provided with a clamping groove 405 on one side. The inner wall of the installation groove 402 is movably connected to the outer wall of the filter dust frame 406.

[0028] Specifically, the dust in the air is blocked by the filter dust net 408 in the early warning device body 1.

[0029] In one embodiment, the outer wall of the filter dust frame 406 is fixedly connected to one side of the positioning lug 407, and the outer wall of the positioning lug 407 is movably connected to the inner wall of the positioning groove 403. The inner wall of the filter dust frame 406 is fixedly connected to the outer wall of the filter dust net 408.

[0030] Specifically, when installing the cleaned filter dust net 408, the filter dust frame 406 is placed into the inside of the fixed frame 401 through the positioning of the positioning groove 403 and the positioning lug 407.

[0031] In one embodiment, the inside of both sides of the filter dust frame 406 is fixedly connected to the outer wall of the fixed block 409, and the inside of the fixed block 409 is provided with a spring groove 410. One side of the spring groove 410 is fixedly connected to one end of the reset spring 411.

[0032] Specifically, the pushing of the moving block 415 drives the extension plate 414 to move, and in turn drives the clamping block 412 to move away from the inside of the clamping groove 405, and at the same time, the clamping block 412 extrudes the reset spring 411, so that the dust filter frame 406 is out of the limiting state by moving the clamping block 412 away from the inside of the clamping groove 405.

[0033] In one embodiment, the other end of the reset spring 411 is fixedly connected to one side of the clamping block 412, and the outer wall of the clamping block 412 is movably connected to the inner wall of the clamping groove 405, and the extension opening 413 is formed in one side of the spring groove 410.

[0034] Specifically, the clamping block 412 is driven into the inside of the clamping groove 405 by the reset of the reset spring 411.

[0035] In one embodiment, one side of the clamping block 412 is fixedly connected to one side of the extension plate 414, and the other side of the extension plate 414 is fixedly connected to one side of the moving block 415, and the outer wall of the extension plate 414 is movably connected to the inner wall of the extension opening 413.

[0036] Specifically, it is convenient to take out and clean the dust filter screen 408, and reduces the complexity of replacing the dust filter screen 408 in the dim underground.

[0037] In one embodiment, the inner wall of the buffer groove 2 is movably connected to the outer wall of the stabilizing rod 501, the top end of the stabilizing rod 501 is fixedly connected to the bottom of the protective compression plate 502, the bottom of the protective compression plate 502 is fixedly connected to the top end of the moving rod 503, the bottom end of the moving rod 503 is fixedly connected to the top end of the damping block 504, the bottom end of the damping block 504 is fixedly connected to the top end of the buffer spring 505, the bottom end of the buffer spring 505 is fixedly connected to the inner bottom wall of the stabilizing groove 3, and the outer wall of the damping block 504 is movably connected to the inner wall of the stabilizing groove 3.

[0038] Specifically, when the falling rock falls towards the early warning device body 1, the protective compression plate 502 is first blocked, the protective compression plate 502 impacted by the falling rock moves downward, and the stabilizing rod 501 stabilizes the moving rod 503 and the damping block 504 to move downward, and at the same time, the damping block 504 moves along the inner wall of the stabilizing groove 3 to extrude the buffer spring 505, and the buffer spring 505 buffers the impact force, thereby increasing the protection effect of the device and reducing the damage caused by the impact to the device.

[0039] Working principle: the dust in the air is blocked by the dust filter net 408 inside the gas suction early warning device body 1, when the dust filter net 408 needs to be taken out for cleaning, the moving block 415 is pushed to drive the extension plate 414 to move, thereby driving the clamping block 412 away from the inside of the clamping groove 405, at the same time, the clamping block 412 extrudes the reset spring 411, through the clamping block 412 away from the inside of the clamping groove 405, the dust filter frame 406 is out of the limiting state, when installing the cleaned dust filter net 408, the dust filter frame 406 is put into the inside of the fixed frame 401 through the positioning of the positioning groove 403 and the positioning protrusion 407, at the same time, the fixed block 409 enters the inside of the installation port 404, through the reset of the reset spring 411, the clamping block 412 enters the inside of the clamping groove 405, thereby stabilizing the dust filter frame 406, when the falling rock falls to the early warning device body 1, it is first blocked by the protective compression plate 502, the impacted protective compression plate 502 moves downward, through the stabilization of the stabilizing rod 501, the moving rod 503 and the damping block 504 are driven to move downward, at the same time, the damping block 504 moves along the inner wall of the stabilizing groove 3 to extrude the buffer spring 505, through the buffer spring 505 to buffer the impact force, the inside of the gas suction early warning device body 1 is detected by the gas concentration sensor arranged inside the early warning device body 1, when the gas concentration is too high, the data is transmitted to the sound and light alarmer inside the early warning device body 1 through the controller inside the early warning device body 1, thereby issuing an alarm, the specific electrical connection relationship between the gas concentration sensor, the controller and the sound and light alarmer in the present application and the circuit principle are the same as those of the coal mine underground gas automatic alarm device disclosed in the publication No. CN209163870U, which is the prior art in the technical field.

[0040] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments shall fall within the protection scope of the present application.

Claims

1. A coal mine underground automatic sound and light early warning device, characterized in that, Include: Early warning device body (1), the top of the early warning device body (1) is provided with a buffer groove (2), the top of the early warning device body (1) is provided with a stable groove (3), the air inlet side of the early warning device body (1) is provided with a dust prevention mechanism (4), the dust prevention mechanism (4) includes a fixed frame (401), a mounting groove (402), a positioning groove (403), a mounting port (404), a clamping groove (405), a dust filter frame (406), a positioning lug (407), a dust filter net (408), a fixed block (409), a spring groove (410), a reset spring (411), a clamping block (412), an extension port (413), an extension plate (414) and a moving block (415), the top of the early warning device body (1) is provided with a pressure resistance mechanism (5), the pressure resistance mechanism (5) includes a stabilizing rod (501), a protective pressure resistance plate (502), a moving rod (503), a damping block (504) and a buffer spring (505).

2. The automatic audible and light warning device for underground coal mine of claim 1, wherein: The air inlet side of the early warning device body (1) is fixedly connected with one side of the fixed frame (401), and the mounting groove (402) is formed in the fixed frame (401).

3. The automatic audible and light warning device for underground coal mine of claim 2, wherein: The inner wall of the mounting groove (402) is provided with a positioning groove (403).

4. The automatic audible and light warning device for underground coal mine of claim 3, wherein: The inner wall of the fixed frame (401) is provided with a mounting port (404) on both sides, and the inner wall of the mounting port (404) is provided with a clamping groove (405) on one side.

5. The automatic audible and light warning device for underground coal mine of claim 4, wherein: The inner wall of the mounting groove (402) is movably connected with the outer wall of the dust filter frame (406).

6. The automatic audible and light warning device for underground coal mine of claim 5, wherein: The outer wall of the dust filter frame (406) is fixedly connected with one side of the positioning lug (407), and the outer wall of the positioning lug (407) is movably connected with the inner wall of the positioning groove (403).

7. The automatic audible and light warning device for underground coal mine of claim 6, wherein: The inner wall of the dust filter frame (406) is fixedly connected with the outer wall of the dust filter net (408). The inner wall of the dust filter frame (406) is fixedly connected with the outer wall of the dust filter net (408). The other end of the reset spring (411) is fixedly connected with one side of the clamping block (412), and the outer wall of the clamping block (412) is movably connected with the inner wall of the clamping groove (405). The other side of the extension plate (414) is fixedly connected with one side of the moving block (415). The outer wall of the extension plate (414) is movably connected with the inner wall of the extension port (413).

8. The automatic audible and light warning device for underground coal mine of claim 7, wherein: The inner wall of the buffer tank (2) is movably connected with the outer wall of the stabilizing rod (501), the top end of the stabilizing rod (501) is fixedly connected with the bottom of the protective compression plate (502), the bottom of the protective compression plate (502) is fixedly connected with the top end of the moving rod (503), the bottom end of the moving rod (503) is fixedly connected with the top end of the damping block (504), the bottom end of the damping block (504) is fixedly connected with the top end of the buffer spring (505), the bottom end of the buffer spring (505) is fixedly connected with the inner bottom wall of the stabilizing groove (3), and the outer wall of the damping block (504) is movably connected with the inner wall of the stabilizing groove (3).

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