Coal mining safety device

Abstract

The utility model relates to the technical field of coal mine safety, and discloses a coal mining safety device which comprises a mounting frame, an inserting frame is fixedly connected to the back face of the mounting frame, a placement box is fixedly connected to the front side of the mounting frame, a ventilation unit is arranged in the placement box, and a sealing door is hinged to the front side of the placement box. An air detector is fixedly connected to the rear side of the interior of the placement box, a protective shell is fixedly connected to the upper portion of the placement box, an inclined plate is fixedly connected to the left side of the interior of the protective shell, and an L-shaped protective plate is fixedly connected to the right side of the interior of the protective shell. According to the coal mine air quality detection device, through the cooperation of the ventilation unit, the air inlet unit and the air detector, the air quality in a coal mine can be rapidly detected, and through the cooperation of the protection shell, the inclined plate, the L-shaped protection plate and the filter screen, the upper portion of the air inlet is protected; and the risk that the coal mine or other objects topple over and cover the air inlet is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coal mine safety, especially relates to a coal mining safety device. BACKGROUND

[0002] The coal mine is the area that human beings exploit coal resources in the coal-rich mining area, is generally divided into underground coal mine and open coal mine, and coal is still important energy today, because its economic price and rich reserves, especially for power generation, safety accidents often occur in the exploitation process of coal mine, seriously endanger personal safety and cause serious economic losses, and real-time oxygen detection in the coal mine is an important measure to ensure the safety of miners and prevent accidents.

[0003] Through the retrieval, the patent announcement number: CN221169668U of China discloses a safety alarm device based on intelligent coal mining, including the installation frame, ventilation frame, fan frame, ventilation fan, ventilation grating plate and ventilation net groove through setting, further improve the use effect of equipment whole, the staff can install the ventilation frame whole in the front position of installation frame, daily can start the ventilation fan in the fan frame, make the ventilation net groove on the upper and lower ends of ventilation frame carry out fast up and down air flow operation, so that the equipment whole directly completes the air detection operation in the inside, avoids the hidden risk existing outside, embodies the comprehensiveness of equipment design.

[0004] And the position of the ventilation port of the safety device in the actual use process will set up the ventilation net groove for filtering dust impurities in the air, under the complex mine environment, there is the risk that the coal mine or other objects fall and cover the ventilation net groove, at this moment, the upper part of the ventilation net groove is blocked by a large amount, which will affect the result of air detection operation, and then will affect the progress of coal mining, therefore, a coal mining safety device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a coal mining safety device, which aims at improving the problem of the risk that the coal mine or other objects fall and cover the ventilation net groove in the mine in the prior art.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a coal mining safety device, including mounting frame, the back of mounting frame is fixedly connected with the plug -in frame, the front side of mounting frame is fixedly connected with the accommodation box, the inside of accommodation box is provided with the ventilation unit, the ventilation unit acts on the circulation of outside air in the inside of accommodation box, the front side of accommodation box is hingedly connected with the sealed door, the inside rear side of accommodation box is fixedly connected with air detector, the front side of air detector is provided with the air inlet unit, the air inlet unit acts in the air that draws into the air detector and carries out the detection, the inside top surface of accommodation box is fixedly connected with the fan, the top of accommodation box is fixedly connected with the protective shell, the inside left side of protective shell is fixedly connected with the inclined plate, the inside right side of protective shell is fixedly connected with L type protection board, the gap between inclined plate and L type protection board is fixedly connected with filter screen.

[0007] As further description of the above technical scheme:

[0008] The ventilation unit includes an air inlet and an air outlet, the air inlet is opened on the upper surface of the accommodation box, and the air outlet is opened on the bottom surface of the accommodation box.

[0009] As further description of the above technical scheme:

[0010] The inside of the air outlet is fixedly connected with a filter plate, the inside bottom surface of the accommodation box is fixedly connected with a flow guide hopper, and the bottom surface of the accommodation box is fixedly connected with a flow guide plate.

[0011] As further description of the above technical scheme:

[0012] The air inlet unit includes an L-shaped flow guide pipe, the L-shaped flow guide pipe is fixedly connected to the front air inlet end of the air detector, and the upper end of the L-shaped flow guide pipe is fixedly connected with a gas collecting hopper.

[0013] As further description of the above technical scheme:

[0014] The fan is located directly below the air inlet, and the protective shell is located directly above the air inlet.

[0015] As further description of the above technical scheme:

[0016] The front and rear surfaces of the inclined plate and the L-shaped protection plate are mutually fitted with the front and rear inner wall surfaces of the protective shell.

[0017] As further description of the above technical scheme:

[0018] The front and rear surfaces of the filter screen are mutually fitted with the front and rear inner wall surfaces of the protective shell.

[0019] As further description of the above technical scheme:

[0020] The guide plate is located directly below the air outlet, and the front end of the guide plate is provided in a downward inclined structure.

[0021] The utility model has the advantages of the following:

[0022] 1. The air quality inside the coal mine can be quickly detected by the cooperation of the air permeation unit, the air inlet unit and the air detector, and an alarm is immediately sent to remind the staff to check or leave immediately when the air quality is unqualified.

[0023] 2. The cooperation of the filter plate, the guide hopper and the guide plate can guide the gas flowing downward through the air outlet and discharged into the accommodation box, avoid the excessive airflow from rebounding and colliding with the downward flowing detection airflow, affect the real-time monitoring effect of the air inside the coal mine, and reduce the influence of the airflow after detection on the subsequent detection gas. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The utility model provides a kind of overall schematic view of coal mining safety device;

[0025] Figure 2 The utility model provides a kind of schematic view inside the accommodation box of coal mining safety device;

[0026] Figure 3 The utility model provides a kind of schematic view of coal mining safety device after removing sealing door from the top;

[0027] Figure 4 The utility model provides a kind of schematic view of protective shell, inclined plate, L-shaped protective plate and filter screen front part section of coal mining safety device.

[0028] LEGEND:

[0029] 1, mounting frame;2, plug-in frame;3, accommodation box;31, air inlet;32, air outlet;4, sealing door;5, air detector;51, L-shaped guide pipe;52, gas collection hopper;6, fan;7, protective shell;8, inclined plate;9, L-shaped protective plate;10, filter screen;11, filter plate;12, guide hopper;13, guide plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1-Figure 2 The utility model provides an embodiment of a coal mine mining safety device, including a mounting frame 1, a plug-in frame 2 is fixedly connected to the back of the mounting frame 1, and the plug-in frame 2 can be inserted into the limiting groove body dug out in advance in the wall to perform a firm and stable limiting and fixing operation of the equipment. The front side of the mounting frame 1 is fixedly connected to the placement box 3, and the interior of the placement box 3 is provided with a ventilation unit, which includes an air inlet 31 and an air outlet 32. The air inlet 31 is opened on the upper surface of the placement box 3, and the air outlet 32 ​​is opened on the bottom surface of the placement box 3. The outside air can enter the interior of the placement box 3 through the air inlet 31 and then be discharged through the air outlet 32. The front side of the placement box 3 is hinged with a sealed door 4, which can seal the interior of the placement box 3. The rear side of the interior of the placement box 3 is fixedly connected to an air detector 5, which can detect the air in the mine entering the placement box 3 and detect the content of methane, oxygen, carbon monoxide, etc. in the air. The top of the placement box 3 is fixedly connected with an alarm, which is electrically connected to the air detector 5. When it is detected that the air quality is unqualified, the alarm is activated to sound and light alarm, and then the staff can open the sealed door 4 and view the data through the screen of the air detector 5. The above structure is an existing technical means in this field and will not be elaborated here.

[0032] Reference Figure 2-Figure 4 The front side of the air detector 5 is provided with an air intake unit. The outside air can enter the placement box 3 from the top of the placement box 3 and then be discharged from the bottom of the placement box 3 to complete the circulation. The air intake unit includes an L-shaped guide tube 51. The L-shaped guide tube 51 is fixedly connected to the front air intake end of the air detector 5. The gas flowing from top to bottom can better enter the air intake at the front side of the air detector 5 through the guidance of the L-shaped guide tube 51. The upper end of the L-shaped guide tube 51 is fixedly connected to an air collecting hopper 52. The air collecting hopper 52 can expand the air intake area of ​​the upper end of the L-shaped guide tube 51, so that the gas to be tested can enter the interior of the air detector 5 through the L-shaped guide tube 51 for detection. The internal top surface of the placement box 3 is fixedly connected to a fan 6, and the top of the placement box 3 is fixedly connected to a protective shell 7. The fan 6 is located directly below the air inlet 31. When the fan 6 is started, it can draw outside air through the air inlet 31 for detection.

[0033] The protective shell 7 is located just above the air inlet 31. The protective shell 7 can protect the front and rear sides above the air inlet 31. The left side of the interior of the protective shell 7 is fixedly connected to an inclined plate 8. The right side of the interior of the protective shell 7 is fixedly connected to an L-shaped protective plate 9. The inclined plate 8 and the L-shaped protective plate 9 are arranged in a staggered structure. The upper right end of the inclined plate 8 is located inside the L-shaped protective plate 9. The inclined plate 8 and the L-shaped protective plate 9 can protect the space just above the air inlet 31. At the same time, a gap is left between the inclined plate 8 and the L-shaped protective plate 9. Outside air can enter the placement box 3 through the gap for detection. When coal mines or other objects are dumped above the placement box 3, the coal mines or other objects can By sliding to the left and right sides along the inclined surfaces of the inclined plate 8 and the L-shaped protective plate 9, accumulation at the air inlet 31 can be avoided, which would block the air inlet 31 and affect the detection results of the air inside the coal mine. The front and rear surfaces of the inclined plate 8 and the L-shaped protective plate 9 are both in contact with the front and rear inner wall surfaces of the protective shell 7. A filter 10 is fixedly connected between the gap between the inclined plate 8 and the L-shaped protective plate 9. The front and rear surfaces of the filter 10 are in contact with the front and rear inner wall surfaces of the protective shell 7. The filter 10 can enter the air inside the placement box 3 for filtering, thereby preventing dust and impurities in the air from entering the placement box 3 and affecting the service life of the air detector 5.

[0034] Reference Figure 1-Figure 3 The inside of the air outlet 32 ​​is fixedly connected with a filter plate 11, which can filter the gas flowing through the air outlet 32 ​​to prevent dust impurities in the outside air from entering the placement box 3 through the air outlet 32. The inner bottom surface of the placement box 3 is fixedly connected with a guide bucket 12, which can guide the air flowing downward through the air inlet 31, so that the air can be guided as completely as possible along the inclined inner wall of the guide bucket 12 and flow to the air outlet 32 ​​for complete discharge, avoiding excessive airflow. The airflow collides with the inner bottom surface of the placement box 3, causing an upward rebound and a convection collision with the downward-flowing detected airflow, affecting the effect of real-time monitoring of the air inside the coal mine. The bottom surface of the placement box 3 is fixedly connected to a guide plate 13, and the guide plate 13 is located directly below the air outlet 32. The front end of the guide plate 13 is arranged in a downward inclined structure. When the airflow is discharged through the air outlet 32, it can be discharged along the inclined surface of the guide plate 13 to the far front side of the placement box 3, reducing the impact of the airflow after detection on the subsequent detection gas.

[0035] Working principle: Plug the plug-in frame 2 into the limiting groove body dug out in the wall in advance, and perform the limiting and fixing operation of the entire device firmly and stably. Then the fan 6 is started to draw air from the coal mine into the placement box 3 through the air inlet 31, and detect it through the air detector 5. When the air quality is detected to be unqualified, the alarm is activated to sound and light alarm, reminding the staff to check or leave immediately. The gas entering the placement box 3 will flow downward, and after being guided by the guide bucket 12, it will be discharged through the air outlet 32. When the air flow is discharged through the air outlet 32, it can be discharged to the front far side of the placement box 3 along the inclined surface of the guide plate 13. When the fan 6 starts to extract outside air, the outside air can enter the placement box 3 through the gap between the inclined plate 8 and the L-shaped protective plate 9 for detection. When coal mine or other objects fall over the placement box 3, the coal mine or other objects can slide to the left and right sides along the inclined surfaces of the inclined plate 8 and the L-shaped protective plate 9, which can avoid accumulation at the air inlet 31 and affect the air detection results inside the coal mine.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A coal mining safety device, comprising a mounting frame (1), the back of which is fixedly connected to a plug-in frame (2), characterized in that: The front side of the mounting frame (1) is fixedly connected to a placement box (3), and a ventilation unit is provided inside the placement box (3). The ventilation unit acts on the circulation of external air inside the placement box (3). The front side of the placement box (3) is hinged with a sealing door (4). The rear side of the interior of the placement box (3) is fixedly connected to an air detector (5). The front side of the air detector (5) is provided with an air intake unit, and the air intake unit acts on the extracted air to enter the air detector (5) for detection. The top surface of the interior of the placement box (3) is fixedly connected to a fan (6). The top of the placement box (3) is fixedly connected to a protective shell (7). The left side of the interior of the protective shell (7) is fixedly connected to an inclined plate (8). The right side of the interior of the protective shell (7) is fixedly connected to an L-shaped protective plate (9). A filter screen (10) is fixedly connected between the inclined plate (8) and the L-shaped protective plate (9).

2. A coal mining safety device according to claim 1, characterized in that: The ventilation unit comprises an air inlet (31) and an air outlet (32), wherein the air inlet (31) is provided on the upper surface of the placement box (3), and the air outlet (32) is provided on the bottom surface of the placement box (3).

3. A coal mining safety device according to claim 2, characterized in that: The interior of the air outlet (32) is fixedly connected to a filter plate (11), the interior bottom surface of the placement box (3) is fixedly connected to a flow guide hopper (12), and the bottom surface of the placement box (3) is fixedly connected to a flow guide plate (13).

4. A coal mining safety device according to claim 1, characterized in that: The air intake unit comprises an L-shaped guide tube (51), the L-shaped guide tube (51) is fixedly connected to the front air intake end of the air detector (5), and the upper end of the L-shaped guide tube (51) is fixedly connected to an air collecting hopper (52).

5. A coal mining safety device according to claim 2, characterized in that: The fan (6) is located directly below the air inlet (31), and the protective housing (7) is located directly above the air inlet (31).

6. A coal mining safety device according to claim 1, characterized in that: The front and rear surfaces of the inclined plate (8) and the L-shaped protective plate (9) are in contact with the front and rear inner wall surfaces of the protective shell (7).

7. A coal mining safety device according to claim 1, characterized in that: The front and rear surfaces of the filter screen (10) are in contact with the front and rear inner wall surfaces of the protective shell (7).

8. A coal mining safety device according to claim 3, characterized in that: The guide plate (13) is located directly below the air outlet (32), and the front end of the guide plate (13) is arranged in a downwardly inclined structure.

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