Coal bunker upper opening protective fence locking device for coal mine

Abstract

The utility model discloses a coal bunker upper opening protective fence locking device for a coal mine, which relates to the technical field of coal mine safety protection, solves the problems that personnel are dangerous to fall into a coal bunker and the probability of safety accidents is high, and comprises a protective fence, a protective door, a bolt mechanism and a safety assembly, the safety assembly comprises a box body, a connecting box, a fixing plate, a controller and a touch switch, a supporting plate is arranged at the position, below the fixing plate, in the box body, a spring is connected between the supporting plate and the fixing plate in an abutting mode, and the side, close to the touch switch, of the supporting plate is fixedly connected with an abutting rod; a connecting rope is fixedly connected to the side, close to the spring, of the supporting plate, the other end of the connecting rope penetrates through the box body and is connected with the connecting box, and an alarm is arranged on the outer surface of the box body. Through the arrangement of the safety assembly, the protection door can be prevented from being opened privately or forgotten to be closed, the danger that personnel fall into the coal bunker is reduced, and the probability of safety accidents is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine safety protection technical field especially is related to a coal mine is with coal bunker upper mouth protective fence locking device. BACKGROUND

[0002] The coal bunker in the coal mine is the intermediate link of the coal transportation system in the coal mine, the coal mined in the mine will be transported to the coal bunker, the mined coal will be temporarily stored in the coal bunker, and then the coal in the coal bunker will be transported out, wherein the coal transportation upper mouth in the coal mine is an open space.

[0003] In the prior art, in order to protect the coal bunker upper mouth, a protective fence is usually installed on the top of the coal bunker upper mouth, and a pair of doors are usually reserved on one side of the protective fence for the convenience of personnel access, the pair of doors are fixed by a latch, and when the coal bunker needs to be maintained, the latch can be opened to allow the personnel to enter the protective fence.

[0004] In the implementation of the utility model, the inventor finds that at least the following problems exist in the technology, in the use process, some workers will open the protective door privately, or forget to close the protective door, the personnel are at risk of falling into the coal bunker, and the probability of safety accidents is relatively high, therefore, the coal mine coal bunker upper mouth protective fence locking device is proposed. UTILITY MODEL CONTENTS

[0005] In order to solve the problem that the personnel are at risk of falling into the coal bunker and the probability of safety accidents is relatively high, the utility model provides a coal mine coal bunker upper mouth protective fence locking device.

[0006] The utility model provides a coal mine coal bunker upper mouth protective fence locking device, adopts the following technical scheme:

[0007] A coal mine coal bunker upper mouth protective fence locking device, including protective fence, protective door, latch mechanism and safety assembly, the protective door is hinged on one side of the protective fence, and the protective door is fixed with the protective fence through the latch mechanism;

[0008] The safety assembly includes a box body fixedly installed on the protective fence and a connecting box fixedly connected to the protective door, a fixed plate is fixedly connected inside the box body, a controller is arranged above the fixed plate in the box body, a touch switch for triggering the controller is fixedly connected to the bottom of the fixed plate, a supporting plate is arranged below the fixed plate in the box body, a spring is abutted between the supporting plate and the fixed plate, a contact rod is fixedly connected to one side of the supporting plate close to the touch switch, a connecting rope is fixedly connected to one side of the supporting plate close to the spring, the other end of the connecting rope penetrates through the box body and is connected with the connecting box, an alarm is arranged on the outer surface of the box body, and the alarm is electrically connected with the controller.

[0009] By adopting the technical scheme, under normal circumstances, the spring exerts elastic force on the support plate to support the support plate to drive the abutting rod away from the touch switch, when the protective door is opened, the protective door drives the connecting box away from the box body, the connecting box pulls the connecting rope, the connecting rope drives the support plate to move towards the fixed plate, the support plate simultaneously compresses the spring, the support plate drives the abutting rod to approach the touch switch, when the abutting rod abuts against the touch switch, the touch switch triggers the controller to start, the controller controls the alarm to work, the alarm alarms to remind the staff that the protective door is opened, the danger of personnel falling into the coal bunker is reduced, and the probability of safety accidents is reduced.

[0010] Optionally, the door bolt mechanism comprises a fixing sleeve, a connecting sleeve, a bolt rod and a limiting pin, the fixing sleeve is fixedly connected to the protective fence, the connecting sleeve is fixedly connected to the protective door, the bolt rod penetrates through the fixing sleeve and the connecting sleeve, and the limiting pin is inserted into one end of the bolt rod.

[0011] By adopting the technical scheme, when the protective door is closed, the bolt rod penetrates through the fixing sleeve and the connecting sleeve, and the limiting pin is inserted into the bolt rod to limit the bolt rod, so that the protective door can be fixed.

[0012] Optionally, the safety assembly further comprises a mine deviation sensor electrically connected to the controller.

[0013] By adopting the technical scheme, when the touch switch triggers the controller to start, the controller controls the mine deviation sensor to work, so that the mine deviation sensor stops the belt conveyor, thereby avoiding that the belt conveyor working causes harm to personnel.

[0014] Optionally, a guide rod is fixedly connected to one side of the fixed plate close to the support plate, and the support plate is slidingly sleeved on the guide rod.

[0015] By adopting the technical scheme, the guide rod can guide the support plate.

[0016] Optionally, a pulley is rotatably installed above the fixed plate in the box body, and the connecting rope is lapped on the pulley.

[0017] By adopting the technical scheme, the pulley can guide the connecting rope.

[0018] Optionally, a box door with a lock is hinged to the front of the box body, and the alarm is installed on the box door.

[0019] By adopting the technical scheme, the box door facilitates the maintenance of the inside of the box body.

[0020] Optionally, the inside of the connecting box is fixedly connected with a supporting column, and the end of the connecting rope away from the supporting plate is fixedly connected with a connecting ring, which is sleeved on the supporting column.

[0021] By adopting the above technical scheme, when the connecting rope needs to be disassembled, the connecting ring is taken off from one end of the supporting column, so that the connection and disassembly of the connecting rope are facilitated.

[0022] Optionally, one side of the connecting box is hingedly connected with a box cover with a lock.

[0023] By adopting the above technical scheme, the connecting box can be locked and protected through the box cover.

[0024] To sum up, the utility model has the following beneficial effects:

[0025] 1. The utility model discloses a safety assembly, under normal circumstances, the spring exerts elastic force on the supporting plate and supports, the supporting plate drives the abutting rod away from the touch switch, when the protective door is opened, the protective door drives the connecting box away from the box body, the connecting box pulls the connecting rope, the connecting rope drives the supporting plate to move towards the fixed plate, the supporting plate compresses the spring at the same time, the supporting plate drives the abutting rod to approach the touch switch, when the abutting rod abuts the touch switch, the touch switch triggers the controller to start, the controller controls the alarm to work, the alarm alarms, reminding the staff that the protective door is opened, reducing the danger of personnel falling into the coal bunker, and reducing the probability of safety accidents.

[0026] 2. The utility model discloses a mine deviation sensor, when the touch switch triggers the controller to start, the controller controls the mine deviation sensor to work, the mine deviation sensor stops the belt machine, so that the harm of the belt machine to personnel is avoided. DRAWINGS

[0027] Figure 1 It is the whole structure schematic diagram of the utility model.

[0028] Figure 2 It is the whole structure schematic diagram of the utility model Figure 1 The structure enlarged view of A in the utility model.

[0029] Figure 3 It is the inside structure schematic diagram of the box body of the utility model.

[0030] Figure 4 It is the inside structure schematic diagram of the connecting box of the utility model.

[0031] Figure 5 It is the connecting structure schematic diagram of the controller of the utility model.

[0032] DRAWINGS

[0033] 1, guardrail; 2, protective door; 3, door bolt mechanism; 31, fixed sleeve; 32, connecting sleeve; 33, bolt rod; 34, limiting pin; 4, safety assembly; 41, box; 42, connecting box; 43, fixed plate; 44, controller; 45, touch switch; 46, support plate; 47, spring; 48, abutting rod; 49, connecting rope; 410, alarm; 411, guide rod; 412, pulley; 413, box door; 414, support column; 415, connecting ring; 416, box cover. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application are described clearly and completely below in combination with drawings of the embodiments of the present application. Figures 1-5 It is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0035] Please refer to Figures 1-2 A coal bunker upper opening protective fence locking device for coal mine, comprising a protective fence 1, a protective door 2, a door bolt mechanism 3 and a safety assembly 4, the protective door 2 is hinged on one side of the protective fence 1, the protective door 2 is fixed with the protective fence 1 through the door bolt mechanism 3, the door bolt mechanism 3 comprises a fixed sleeve 31, a connecting sleeve 32, a bolt rod 33 and a limiting pin 34, the fixed sleeve 31 is fixedly connected on the protective fence 1, the connecting sleeve 32 is fixedly connected on the protective door 2, the bolt rod 33 penetrates through the fixed sleeve 31 and the connecting sleeve 32, the limiting pin 34 is inserted in one end of the bolt rod 33, through the setting of the door bolt mechanism 3, when the protective door 2 is closed, the bolt rod 33 is inserted through the fixed sleeve 31 and the connecting sleeve 32, and then the limiting pin 34 is inserted into the bolt rod 33 to limit the bolt rod 33, so that the protective door 2 can be fixed.

[0036] Refer to Figure 1 and Figure 2The safety assembly 4 comprises a box body 41 fixedly installed on the guardrail 1 and a connecting box 42 fixedly connected to the guard door 2. The inside of the box body 41 is fixedly connected with a fixed plate 43. A controller 44 is arranged above the fixed plate 43 in the inside of the box body 41. A touch switch 45 for triggering the controller 44 is fixedly connected to the bottom of the fixed plate 43. A supporting plate 46 is arranged below the fixed plate 43 in the inside of the box body 41. A spring 47 is abutted between the supporting plate 46 and the fixed plate 43. A contact lever 48 is fixedly connected to one side of the supporting plate 46 close to the touch switch 45. A connecting rope 49 is fixedly connected to one side of the supporting plate 46 close to the spring 47. The other end of the connecting rope 49 penetrates through the box body 41 and is connected with the connecting box 42. An alarm 410 is arranged on the outer surface of the box body 41 and is electrically connected with the controller 44. Under normal circumstances, the spring 47 exerts a spring force on the supporting plate 46 to support the supporting plate 46, so that the supporting plate 46 drives the contact lever 48 to move away from the touch switch 45. When the guard door 2 is opened, the guard door 2 drives the connecting box 42 to move away from the box body 41. The connecting box 42 pulls the connecting rope 49, so that the connecting rope 49 drives the supporting plate 46 to move towards the fixed plate 43. At the same time, the supporting plate 46 compresses the spring 47. The supporting plate 46 drives the contact lever 48 to move close to the touch switch 45. When the contact lever 48 abuts against the touch switch 45, the touch switch 45 triggers the controller 44 to start. The controller 44 controls the alarm 410 to work, and the alarm 410 alarms to remind the staff that the guard door 2 is opened, so as to reduce the risk of personnel falling into the coal bunker and the probability of safety accidents.

[0037] In addition, the safety assembly 4 further comprises a mine deviation sensor electrically connected with the controller 44. The mine deviation sensor is electrically connected with the coal bunker belt conveyor. After the touch switch 45 triggers the controller 44 to start, the controller 44 controls the mine deviation sensor to work, so that the mine deviation sensor stops the coal bunker belt conveyor, thereby avoiding the harm of the working coal bunker belt conveyor to the personnel.

[0038] With reference to Figure 3 One side of the fixed plate 43 close to the supporting plate 46 is fixedly connected with a guide rod 411 arranged vertically. The supporting plate 46 is slidingly sleeved on the guide rod 411. The guide rod 411 can guide the supporting plate 46 and improve the stability of the supporting plate 46 during sliding. A pulley 412 is rotatably installed above the fixed plate 43 in the inside of the box body 41. The connecting rope 49 is lapped on the pulley 412. The pulley 412 can guide the connecting rope 49 and enable the connecting rope 49 to turn. The front of the box body 41 is hingedly connected with a box door 413 with a lock. The alarm 410 is installed on the box door 413. The box door 413 facilitates the maintenance of the inside of the box body 41. Since the box door 413 is locked, only the relevant staff can open the box door 413, thereby avoiding the workers from opening the box door 413 privately.

[0039] With reference to Figure 4 The inside of the connecting box 42 is fixedly connected with a supporting column 414, and the end of the connecting rope 49 away from the supporting plate 46 is fixedly connected with a connecting ring 415, which is sleeved on the supporting column 414. When the connecting rope 49 is fixed, the connecting rope 49 can be introduced into the connecting box 42, and the connecting ring 415 is sleeved on the supporting column 414, so that the connecting box 42 and the connecting rope 49 can be connected. When the connecting rope 49 needs to be disassembled, the connecting ring 415 is removed from one end of the supporting column 414, so that the connecting rope 49 can be connected and disassembled conveniently. The side of the connecting box 42 is hingedly connected with a box cover 416 with a lock. The box cover 416 can protect the connecting box 42. Only the relevant staff can open the box cover 416 because the box cover 416 is locked, so that the box cover 416 cannot be opened privately by the workers.

[0040] The utility model discloses the implementation principle is: when the protection door 2 is closed, the bolt rod 33 is inserted into the bolt rod 33 through the fixed sleeve 31 and the connecting sleeve 32, and the limiting pin 34 is inserted into the bolt rod 33 to limit the bolt rod 33, so that the protection door 2 can be fixed. When the connecting rope 49 is fixed, the connecting rope 49 can be introduced into the connecting box 42, and the connecting ring 415 is sleeved on the supporting column 414, so that the connecting box 42 and the connecting rope 49 can be connected. Under normal circumstances, the spring 47 exerts a spring force on the supporting plate 46 to support the supporting plate 46, so that the supporting plate 46 drives the abutting rod 48 away from the touch switch 45. When the protection door 2 is opened, the protection door 2 drives the connecting box 42 away from the box body 41, the connecting box 42 pulls the connecting rope 49, the connecting rope 49 drives the supporting plate 46 to move towards the fixed plate 43, the supporting plate 46 simultaneously compresses the spring 47, the supporting plate 46 drives the abutting rod 48 to approach the touch switch 45, and when the abutting rod 48 abuts against the touch switch 45, the touch switch 45 triggers the controller 44 to start. The controller 44 controls the alarm 410 to work, the alarm 410 alarms, and reminds the staff that the protection door 2 is opened. In addition, when the touch switch 45 triggers the controller 44 to start, the controller 44 controls the mine deviation sensor to work, so that the mine deviation sensor stops the belt machine, thereby avoiding that the belt machine works to cause harm to the personnel, reducing the risk of falling into the coal bunker, and reducing the probability of safety accidents.

[0041] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A locking device for a protective fence at the top of a coal bunker in a coal mine, comprising a protective fence (1), a protective door (2), a door bolt mechanism (3) and a safety assembly (4), characterized in that: The guard door (2) is hinged on one side of the guardrail (1), and the guard door (2) is fixed with the guardrail (1) through a door bolt mechanism (3); The safety assembly (4) comprises a box body (41) fixedly installed on the guardrail (1) and a connecting box (42) fixedly connected to the guard door (2), the inside of the box body (41) is fixedly connected with a fixed plate (43), the inside of the box body (41) is provided with a controller (44) above the fixed plate (43), the bottom of the fixed plate (43) is fixedly connected with a touch switch (45) for triggering the controller (44), the inside of the box body (41) is provided with a supporting plate (46) below the fixed plate (43), the supporting plate (46) and the fixed plate (43) abut against each other with a spring (47) therebetween, the side of the supporting plate (46) close to the touch switch (45) is fixedly connected with a contact lever (48), the side of the supporting plate (46) close to the spring (47) is fixedly connected with a connecting rope (49), the other end of the connecting rope (49) penetrates through the box body (41) and is connected with the connecting box (42), the outer surface of the box body (41) is provided with an alarm (410), and the alarm (410) is electrically connected with the controller (44).

2. The coal bunker upper port protective fence locking device for coal mine according to claim 1, characterized in that: The door bolt mechanism (3) comprises a fixed sleeve (31), a connecting sleeve (32), a bolt rod (33) and a limiting pin (34), the fixed sleeve (31) is fixedly connected to the guardrail (1), the connecting sleeve (32) is fixedly connected to the guard door (2), the bolt rod (33) penetrates through the fixed sleeve (31) and the connecting sleeve (32), and the limiting pin (34) is inserted into one end of the bolt rod (33).

3. The coal bunker upper port protective fence locking device for coal mine according to claim 1, characterized in that: The safety assembly (4) further comprises a mine deviation sensor electrically connected with the controller (44).

4. The coal bunker upper port protective fence locking device for coal mine according to claim 1, characterized in that: The side of the fixed plate (43) close to the supporting plate (46) is fixedly connected with a guide rod (411), and the supporting plate (46) is slidingly sleeved on the guide rod (411).

5. The coal bunker upper port protective fence locking device for coal mine according to claim 1, characterized in that: A pulley (412) is rotatably installed inside the box body (41) above the fixed plate (43), and the connecting rope (49) is lapped on the pulley (412).

6. The coal bunker upper port protective fence locking device for coal mine according to claim 1, characterized in that: A box door (413) with a lock is hinged on the front of the box body (41), and the alarm (410) is installed on the box door (413).

7. The coal bunker upper port protective fence locking device for coal mine according to claim 1, characterized in that: The inside of the connecting box (42) is fixedly connected with a supporting column (414), one end of the connecting rope (49) away from the supporting plate (46) is fixedly connected with a connecting ring (415), and the connecting ring (415) is sleeved on the supporting column (414).

8. The coal bunker upper port protective fence locking device for coal mine according to claim 1, characterized in that: A box cover (416) with a lock is hinged on one side of the connecting box (42).

Images