CN210105892U

CN210105892U - Novel safety anti-falling device for mine underground

Info

Publication number: CN210105892U
Application number: CN201920861287.5U
Authority: CN
Inventors: 张欣; 李江飞; 赵振宇; 董泽强; 刘建君
Original assignee: Datong Coal Mine Group Co Ltd
Current assignee: Datong Coal Mine Group Co Ltd
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-02-21
Anticipated expiration: 2029-06-10

Abstract

The utility model discloses a novel safety prevents down ware in mine pit includes two guide blocks, every the guide way has all been seted up in the guide block, two common sliding connection has the bracing piece on the inner wall of guide way, every the equal fixedly connected with grip block of lower extreme of guide block, the spout has been seted up in the grip block, sliding connection has the rectangular wedge round pin in the spout, the gliding drive arrangement of drive rectangular wedge round pin in the spout is installed to the lateral wall of rectangular wedge round pin, set up the square groove with the spout intercommunication in the grip block. The utility model discloses a rotate the hand wheel for with hand wheel internal thread through-hole screw-thread fit's threaded rod horizontal migration, can drive long wedge round pin round trip movement in the spout, need not the long wedge round pin of hammering like this, can not cause the harm to long wedge round pin, thereby prolonged the life of long wedge round pin, because the screw thread has self-locking function, consequently the threaded rod can not easy the nature emergence rotation, long wedge round pin is difficult not hard up, and the security is high.

Description

Novel safety anti-falling device for mine underground

Technical Field

The utility model relates to a coal mine safety equipment technical field especially relates to novel safety in pit of mine prevents down ware.

Background

A large number of metal supports are used under a coal mine, and the supports are impacted to deform, incline, fall into a shed, incline the shed and the like after blasting, so that the safety production of the coal mine is greatly influenced. The national key coal mine is specified in the production mine quality standardization standard: the tunnel supported by the shed is adopted, and a pull rod or a support wood is required; other anti-falling devices are required to be arranged on the blasting driving face within 5-10m from the head.

When the existing I-steel fall preventer is used, a long wedge pin is driven into a movable pressing claw, the clamped I-steel is extruded through a wedge surface of the long wedge pin to clamp, and the long wedge pin needs to be hammered by people forcibly during operation, so that the long wedge pin is damaged greatly in a long-time use process, the service life of the long wedge pin is shortened, and meanwhile, the I-steel is extruded through the wedge surface only, so that the long wedge pin is easy to loosen and safety accidents easily occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a novel underground safety anti-falling device for a mine.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

novel safety in pit of mine prevents down ware, including two guide blocks, every the guide way, two have all been seted up in the guide block common sliding connection has the bracing piece on the inner wall of guide way, every the equal fixedly connected with grip block of lower extreme of guide block, the spout has been seted up in the grip block, sliding connection has long wedge round pin in the spout, the gliding drive arrangement of drive long wedge round pin in the spout is installed to the lateral wall of long wedge round pin, set up the square groove with the spout intercommunication in the grip block, fixedly connected with connecting rod on the lateral wall of grip block, the one end fixedly connected with pressure claw of grip block is kept away from to the connecting rod.

Preferably, drive arrangement is including rotating the threaded rod of connection at long taper pin lateral wall, the lateral wall of grip block rotates and is connected with the hand wheel, threaded through hole has been seted up in the hand wheel, threaded rod and threaded through hole threaded connection.

Preferably, the two opposite inner walls of the sliding groove are provided with limit grooves, two side walls of the long wedge pin are fixedly connected with limit blocks, and the limit blocks are connected in the limit grooves in a sliding mode.

Preferably, the side wall of the hand wheel is fixedly connected with a handle, and the fixed connection position of the handle and the hand wheel is far away from the axis of the hand wheel.

Preferably, a rubber sleeve is glued on the handle, and anti-skid lines are carved on the rubber sleeve.

Preferably, the hand wheel and the movable pressing claw are positioned on two opposite side walls of the clamping block, and the thicker end of the long wedge pin extends into the movable pressing claw.

The utility model discloses following beneficial effect has:

1. the threaded rod in threaded fit with the through hole in the inner thread of the hand wheel horizontally moves by rotating the hand wheel, so that the long wedge pin can be driven to move back and forth in the sliding groove, the wedge-shaped surface of the long wedge pin can enter the square groove, and the I-shaped steel in the square groove can be clamped, so that the long wedge pin does not need to be hammered, the long wedge pin cannot be damaged, and the service life of the long wedge pin is prolonged;

2. because the screw thread has self-locking function, consequently the threaded rod can not easy the natural emergence rotate, and then also make the long wedge pin position of being connected with the threaded rod rotation fixed, long wedge pin is difficult not hard up, and the security is high.

Drawings

FIG. 1 is a schematic structural view of a novel safety fall preventer under a mine well according to the present invention;

FIG. 2 is a schematic side view of the novel safety fall preventer under a mine according to the present invention;

fig. 3 is the utility model provides a novel safety prevents back structure sketch map of falling ware in mine pit.

In the figure: the device comprises a guide block 1, a guide groove 2, a support rod 3, a clamping block 4, a sliding groove 5, a long wedge pin 6, a square groove 7, a movable claw 8, a limiting groove 9, a limiting block 10, a connecting rod 11, a hand wheel 12, a threaded through hole 13 and a threaded rod 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a novel safety anti-falling device in a mine well comprises two guide blocks 1, each guide block 1 is internally provided with a guide groove 2, the inner walls of the two guide grooves 2 are jointly and slidably connected with a support rod 3, the lower end of each guide block 1 is fixedly connected with a clamping block 4, a sliding groove 5 is arranged in each clamping block 4, a long wedge pin 6 is slidably connected with each sliding groove 5, two opposite inner walls of each sliding groove 5 are respectively provided with a limit groove 9, two side walls of each long wedge pin 6 are respectively and fixedly connected with a limit block 10, each limit block 10 is slidably connected in each limit groove 9, the side wall of each long wedge pin 6 is provided with a driving device for driving the long wedge pin 6 to slide in each sliding groove 5, a square groove 7 communicated with each sliding groove 5 is arranged in each clamping block 4, a connecting rod 11 is fixedly connected to the side wall of each clamping block 4, one end of each connecting rod, the long wedge pin 6 and the movable claw 8 are parts of the prior falling preventer.

The driving device comprises a threaded rod 14 rotatably connected to the side wall of the long wedge pin 6, the side wall of the clamping block 4 is rotatably connected with a hand wheel 12, the side wall of the hand wheel 12 is fixedly connected with a handle, the fixed connection position of the handle and the hand wheel 12 is far away from the axis of the hand wheel 12, a rubber sleeve is glued on the handle, anti-skid lines are carved on the rubber sleeve, a threaded through hole 13 is formed in the hand wheel 12, the threaded rod 14 is in threaded connection with the threaded through hole 13, the hand wheel 12 and the pressure claw 8 are located on two mutually opposite side walls of the clamping block 4, and the thicker end of the long wedge pin 6 extends into the pressure claw 8.

In the utility model, when the device is used, the I-steel to be clamped is placed in the square groove 7, the handle is held by hands and the hand wheel 12 is rotated, at the moment, the threaded rod 14 in threaded connection with the through hole 13 in the inner thread of the hand wheel 12 moves horizontally, so that the long wedge pin 6 rotationally connected with the threaded rod 14 is driven to slide in the chute 5, the wedge surface of the long wedge pin 6 enters the square groove 7, and the I-steel in the square groove 7 can be clamped;

meanwhile, the threaded rod 14 is rotatably connected with the long wedge pin 6, and the long wedge pin 6 cannot be rotated by the rotation of the threaded rod 14, so that the device does not influence the use of the original function.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The novel safety anti-falling device in the mine underground comprises two guide blocks (1) and is characterized in that each guide block (1) is internally provided with a guide groove (2), the inner walls of the two guide grooves (2) are jointly and slidably connected with a support rod (3), the lower end of each guide block (1) is fixedly connected with a clamping block (4), a sliding groove (5) is arranged in the clamping block (4), a long wedge pin (6) is connected in the sliding groove (5) in a sliding way, the side wall of the long wedge pin (6) is provided with a driving device for driving the long wedge pin (6) to slide in the chute (5), a square groove (7) communicated with the sliding groove (5) is arranged in the clamping block (4), the clamping device is characterized in that a connecting rod (11) is fixedly connected to the side wall of the clamping block (4), and one end, far away from the clamping block (4), of the connecting rod (11) is fixedly connected with a movable pressure claw (8).

2. The novel safety fall preventer for mine underground according to claim 1, wherein the driving device comprises a threaded rod (14) rotatably connected to the side wall of the long wedge pin (6), the side wall of the clamping block (4) is rotatably connected with a hand wheel (12), a threaded through hole (13) is formed in the hand wheel (12), and the threaded rod (14) is in threaded connection with the threaded through hole (13).

3. The novel safety fall preventer for mine underground according to claim 2, wherein two opposite inner walls of the sliding groove (5) are respectively provided with a limiting groove (9), two side walls of the long wedge pin (6) are respectively and fixedly connected with a limiting block (10), and the limiting blocks (10) are slidably connected in the limiting grooves (9).

4. The novel safety fall preventer for the mine underground according to claim 2, wherein a handle is fixedly connected to a side wall of the hand wheel (12), and a fixed connection position of the handle and the hand wheel (12) is far away from an axis of the hand wheel (12).

5. The novel safety fall preventer for mine underground according to claim 4, wherein a rubber sleeve is glued on the handle, and anti-skid lines are carved on the rubber sleeve.

6. The novel safety fall preventer for mine underground according to claim 2, characterized in that the hand wheel (12) and the movable pressure claw (8) are located on two opposite side walls of the clamping block (4), and the thicker end of the long wedge pin (6) extends into the movable pressure claw (8).