Linkage protection device for coal mine personnel safety

By combining a deviation sensor and a linkage mechanism on the underground transport trough in coal mines, emergency shutdown of the equipment can be achieved, solving the problem of low sensitivity of existing devices and improving the safety and reliability of coal mining.

CN116335752BActive Publication Date: 2026-03-20CHINA COAL ZHANGJIAKOU COAL MINING MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-04-03
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

The existing protective devices for underground transport chutes in coal mines have low sensitivity and poor safety, and cannot effectively cope with emergencies.

Method used

The device combines a deviation sensor with a linkage mechanism. The deviation sensor is triggered by the swing of the linkage mechanism to achieve an emergency stop of the equipment. The sensor probe is fixed by a hook plate to prevent it from resetting, and the equipment needs to be manually restored.

Benefits of technology

This improves the responsiveness of the transport trough, ensuring emergency shutdown of the equipment in case of unforeseen circumstances, and increasing the safety and reliability of coal mining.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116335752B_ABST
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Abstract

The present application relates to the field of coal mine personnel safety, in particular to a connecting rod protection device for coal mine personnel safety. It comprises a left baffle assembly, a right baffle assembly, a deviation sensor, a steel pipe and a coupling plate. The device can be placed on a transport groove. When an emergency occurs, the staff holds the steel pipe to make it swing. The swinging steel pipe promotes the displacement of the probe rod of the deviation sensor, sends a deviation signal to the control equipment, and stops the equipment at this time. The hook plate hooks the steel pipe to prevent the deviation sensor from returning to the original position during the return of the steel pipe, so that corresponding measures can be taken in time. After the fault is removed, the probe rod of the deviation sensor is manually returned to the original position, and the equipment operates normally. The present application applies the deviation sensor to the field of coal mine personnel safety for the first time, and increases the safety and reliability of coal mining.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of coal mine personnel safety, in particular to a connecting rod protection device for coal mine personnel safety. BACKGROUND

[0002] So far, the protection device for the transport tank is all the pull wire protection, the reaction sensitivity is low, and the reliability is poor. The present application applies the deviation sensor to the protection device for the first time, uses the working principle of the deviation sensor, realizes the emergency stop of the equipment in the sudden accident, and after the accident is removed, the equipment needs to be restored manually to restore the equipment operation, greatly increases the safety and reliability during the coal mining. SUMMARY

[0003] The purpose of the present application is to provide a connecting rod protection device for coal mine personnel safety, to solve the problem of low sensitivity and poor safety of the protection device in the underground coal mining.

[0004] The purpose of the present application is realized by the following technical scheme:

[0005] A connecting rod protection device for coal mine personnel safety, characterized in that: the connecting rod protection device comprises: a left baffle assembly, a right baffle assembly, a deviation sensor, a long steel pipe, a short steel pipe 1, a short steel pipe 2, and a connecting plate.

[0006] The left baffle assembly and the right baffle assembly are symmetrical structures, and the left baffle assembly is taken as an example, comprising a frame, a long plate 1, a long plate 2, and a hook plate. The long plate 1 and the long plate 2 are rotatably installed on the frame, the long plate 1 and the long plate 2 are installed on the inner side of the frame, and the long plate 1 and the long plate 2 are arranged at intervals.

[0007] The left baffle assembly and the right baffle assembly are connected through the long steel pipe, the short steel pipe 1, and the short steel pipe 2, and the long steel pipe, the short steel pipe 1, and the short steel pipe 2 are arranged at intervals.

[0008] The connecting plate and the long plate 1 and the long plate 2 are connected through the long steel pipe, the short steel pipe 1, and the short steel pipe 2 to form a connecting rod mechanism.

[0009] The length of the long steel pipe needs to contact the probe rod of the deviation sensor, that is, the length is greater than L2, the lengths of the short steel pipe 1 and the short steel pipe 2 are less than L1, and the long steel pipe, the short steel pipe 1, and the short steel pipe 2 can freely and flexibly swing.

[0010] The deviation sensor is fixedly installed on the frame and arranged at intervals with the hook plate.

[0011] The hook plate is rotatably installed on the frame and located above the long steel pipe.

[0012] The width L of the connecting rod protection device is adjustable, and the height H is adjustable.

[0013] The long plate 1 and long plate 2 and the coupling plate on the left baffle assembly and the right baffle assembly are provided with the matching round holes of the long steel pipe, the short steel pipe 1 and the short steel pipe 2.

[0014] The hook plate is provided with a circular arc, and the circular arc position can fix the long steel pipe when the long steel pipe swings back, so as to prevent the deviation sensor probe from returning to the initial position.

[0015] The beneficial effects of the present application mainly include that the transport groove adopting the connecting rod protection device has high response sensitivity, can be urgently stopped in an emergency, and will not operate until the equipment is manually restored, thereby increasing the safety and reliability in the coal mining process.

[0016] The technical solutions of the present application will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a main view of the left baffle assembly of the present application

[0018] Figure 2 It is a main view of the right baffle assembly of the present application

[0019] Figure 3 It is a schematic view of the short steel pipe 1 and the short steel pipe 2

[0020] Figure 4 It is a schematic view of the long steel pipe

[0021] Figure 5 It is a schematic view of the long plate

[0022] Figure 6 It is a schematic view of the hook plate

[0023] Figure 7 It is a schematic view of the return of the deviation sensor being fixed by the hook plate

[0024] Figure 8 It is a schematic view of the structure of the present application

[0025] Wherein: 1, left baffle assembly, 2, right baffle assembly, 3, deviation sensor, 4, long steel pipe, 5, short steel pipe 1, 6, short steel pipe 2, 7, coupling plate, 11, frame, 12 long plate 1, 13, long plate 2, 14, hook plate

[0026] L - the width of the protection device can be adjusted millimeter

[0027] L1 - the maximum width of the short steel pipe millimeter

[0028] L2 - the minimum width of the long steel pipe millimeter

[0029] H - the height of the protection device can be adjusted millimeter. DETAILED DESCRIPTION

[0030] The application provides a connecting rod protection device for coal mine personnel safety, which comprises a left baffle assembly, a right baffle assembly, a deviation sensor, a long steel pipe, a short steel pipe and a coupling plate. Figures 1-6 As shown in the figure, the left baffle assembly and the right baffle assembly are symmetrical structures, comprising a frame, a long plate 1, a long plate 2 and a hook plate. The long plate 1 and the long plate 2 are rotatably installed on the inner side of the frame, the hook plate is rotatably installed on the outer side of the frame, the deviation sensor is fixedly installed on the frame, and the coupling plate, the long plate 1, the long plate 2 and the left and right baffle assemblies are connected through the long steel pipe, the short steel pipe and the short steel pipe. Figure 7 As shown in the figure, it is a schematic diagram of the long steel pipe being fixed by the hook plate when the long steel pipe swings back after being stressed. When an accident occurs during the operation of the device, the worker can hold any steel pipe. Since the long plate 1, the long plate 2 and the coupling plate form a connecting rod mechanism, that is, the long plate 1, the long plate 2, the coupling plate and the long steel pipe, the short steel pipe and the short steel pipe will swing together, the long steel pipe will cause the displacement of the probe rod of the deviation sensor, the hook plate will fall, the deviation sensor will send an interrupt signal, and the device will stop. When the long steel pipe swings back, it is fixed at a position by the hook plate to block the reset of the probe rod of the deviation sensor.

[0031] It should be understood that the above detailed description of the technical solutions of the application by means of the preferred embodiments is illustrative rather than limiting. Those skilled in the art can modify the technical solutions recorded in the embodiments or make equivalent replacements to some technical features on the basis of the description of the application, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. A linkage protection device for the safety of coal mine personnel, characterized in that: The linkage protection device includes: a left baffle assembly (1), a right baffle assembly (2), a deviation sensor (3), a long steel pipe (4), a short steel pipe 1 (5), a short steel pipe 2 (6), and a connecting plate (7). The left baffle assembly (1) and the right baffle assembly (2) are symmetrical structures, including a frame (11), a long plate 1 (12), a long plate 2 (13), and a hook plate (14). The long plate 1 (12) and the long plate 2 (13) are rotatably mounted on the frame (11). The long plate 1 (12) and the long plate 2 (13) are mounted on the inside of the frame (11), and the long plate 1 (12) and the long plate 2 (13) are spaced apart. The left baffle assembly (1) and the right baffle assembly (2) are connected by a long steel pipe (4), a short steel pipe 1 (5), and a short steel pipe 2 (6), with the long steel pipe (4), the short steel pipe 1 (5), and the short steel pipe 2 (6) spaced apart. The connecting plate (7) is connected to the long plate 1 (12) and the long plate 2 (13) through the long steel pipe (4), the short steel pipe 1 (5) and the short steel pipe 2 (6) to form a linkage mechanism; The length of the long steel pipe (4) is sufficient to contact the probe of the deviation sensor (3), and the long steel pipe (4), short steel pipe 1 (5), and short steel pipe 2 (6) can swing freely. The deviation sensor (3) is fixedly installed on the frame (11) and spaced apart from the hook plate (14); The hook plate (14) is rotatably mounted on the frame (11) and located above the long steel pipe (4); The width L and height H of the linkage protection device are adjustable; The long plate 1 (12) and long plate 2 (13) on the left baffle assembly (1) and the right baffle assembly (2), as well as the connecting plate (7), are all provided with matching round holes for the long steel pipe (4), the short steel pipe 1 (5), and the short steel pipe 2 (6); The hook plate (14) has an arc, and the arc position can fix it when the long steel pipe (4) swings back, so as to prevent the probe of the deviation sensor (3) from returning to the initial position.

Citation Information

Patent Citations

  • Pull-cord protection arrangement

    CN201280950Y

  • Belt deviation adjustment assisting device

    CN203033314U