Open pit coal mine slope protection device

Abstract

The utility model relates to the technical field of open-pit coal mines, in particular to an open-pit coal mine slope protection device which comprises a slope body and further comprises a first fixing plate and a second fixing plate which are arranged on the two sides of the surface of the slope body respectively, and movable grooves are formed in the opposite sides of the first fixing plate and the second fixing plate. The cams are rotationally connected to the two sides of the interiors of the first fixing plate and the second fixing plate, a driving wheel is fixed to the surface of a rotating shaft of the lower cam, a twisting disc is fixed to the front end of the rotating shaft of the lower cam, a driven wheel is fixed to the surface of a rotating shaft of the upper cam, and the driven wheel is in transmission connection with the driving wheel through a belt; when the protective net is damaged, the protruding part of the protective net rotates towards one side of the push plate through rotation of the cam, so that force is applied to the push plate, the hook and one end of the protective net are exposed to the outside, and the damaged protective net can be conveniently disassembled, assembled and replaced subsequently.

Description

Technical Field

[0001] The utility model relates to the technical field of open-pit coal mines, in particular to an open-pit coal mine slope protection device. Background Art

[0002] The slope of an open-pit coal mine is also known as the open-pit mine wall. It is one of the components of an open-pit mine. It refers to the inclined surface surrounding the open-pit mine, that is, the total slope formed by the many steps where mining has ended. The angle between the slope and the horizontal plane is called the slope-wall angle or final slope-wall angle. Based on the spatial position of the slope relative to the ore body, the slope can be divided into the upper wall slope, the lower wall slope, and the end slope. The intersection of the slope and the ground surface is called the surface boundary line of the open-pit mine, and the intersection of the slope and the bottom plane is called the bottom boundary line.

[0003] In order to prevent the gravel on the slope of coal mines from sliding, protective devices are often used to prevent the gravel from sliding. The current protective devices generally use protective nets to block and protect the gravel on the slope. However, the protective nets are prone to friction with the gravel after repeated use, causing them to be easily damaged. It is more troublesome to replace them after damage, which in turn affects their subsequent use. Utility Model Content

[0004] The purpose of the utility model is to provide an open-pit coal mine slope protection device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an open-pit coal mine slope protection device, comprising a slope body, and further comprising:

[0006] A first fixing plate and a second fixing plate are respectively arranged on both sides of the surface of the slope body, and a movable groove is formed on the opposite sides of the first fixing plate and the second fixing plate;

[0007] The cams are rotatably connected to both sides of the first fixed plate and the second fixed plate, a driving wheel is fixed to the rotating shaft surface of the lower cam, a torsion plate is fixed to the front end of the rotating shaft of the lower cam, and a driven wheel is fixed to the rotating shaft surface of the upper cam, and the driven wheel is connected to the driving wheel through a belt;

[0008] A push plate movably connected to the inside of the first fixed plate and the second fixed plate, a plurality of tension springs fixed between one side of the push plate and the inner wall of the first fixed plate, a plurality of hooks provided on the side of the push plate away from the cam, and a protective net provided between the left and right push plates via the hooks;

[0009] A positive folding plate is fixed on the left end of the first fixed plate, and a reverse folding plate is fixed on the right side of the second fixed plate to cooperate with the positive folding plate. The front and rear sides of the top of the reverse folding plate are both provided with fixed structures.

[0010] Preferably, the fixing structure includes a movable plate rotatably connected to the top of the second fixed plate, and a fastening bolt threadedly connected to one end of the movable plate, and one end of the fastening bolt cooperates with the inside of the limiting hole.

[0011] Preferably, movable rods are fixedly connected to the upper and lower parts of the interior of the first fixed plate, and the interior of the push plate is movably connected to the surface of the movable rods.

[0012] Preferably, limit plates are fixed on the upper and lower sides of one side of the push plate, and the limit plates are used in conjunction with the cam.

[0013] Preferably, the width of the inner side of the movable groove is greater than the upper and lower widths of the hook.

[0014] Preferably, the front and rear sides of both ends of the first fixing plate and the second fixing plate are threadedly connected with fixing bolts for fixing them to the slope body.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The utility model rotates the cam to rotate the protruding part toward one side of the push plate, thereby applying force to the push plate, so that the hook and one end of the protective net are exposed to the outside, so as to facilitate the subsequent disassembly and replacement of the damaged protective net. At the same time, the two protective devices can be clamped together by the card connection between the positive folding plate and the inverted folding plate, so that the protection range can be adjusted according to the size of the slope, thereby improving applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the first fixing plate in the present utility model;

[0019] Figure 3 It is a schematic diagram of the local structure of the utility model;

[0020] Figure 4 It is a partial left-side structural schematic diagram of the present invention;

[0021] Figure 5 For this utility model Figure 2 A partial enlarged view of point A in the middle.

[0022] In the figure: 1. Slope body; 2. First fixed plate; 3. Second fixed plate; 4. Torsion plate; 5. Cam; 6. Driving wheel; 7. Push plate; 8. Hook; 9. Tension spring; 10. Protective net; 11. Positive folding plate; 12. Inverted folding plate; 13. Fixed structure; 131. Movable plate; 132. Fastening bolt; 133. Limiting hole; 14. Movable rod; 15. Limiting plate; 16. Fixing bolt; 17. Driven wheel; 18. Movable slot. DETAILED DESCRIPTION

[0023] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0024] See also Figure 1-5 As shown, a slope protection device for an open-pit coal mine includes a slope body 1. A first fixing plate 2 and a second fixing plate 3 are respectively provided on both sides of the surface of the slope body 1. A movable groove 18 is provided on the opposite sides of the first fixing plate 2 and the second fixing plate 3. Cams 5 are rotatably connected on both sides of the interior of the first fixing plate 2 and the second fixing plate 3. A driving wheel 6 is fixed to the rotating shaft surface of the lower cam 5. A torsion plate 4 is fixed to the front end of the rotating shaft of the lower cam 5. A driven wheel 17 is fixed to the rotating shaft surface of the upper cam 5. The driven wheel 17 is connected to the driving wheel 6 through a belt. The first fixed plate 2 and the second fixed plate 3 are connected by transmission, and the interior of the first fixed plate 2 and the second fixed plate 3 are movably connected with a push plate 7, and a number of tension springs 9 are fixed between one side of the push plate 7 and the inner wall of the first fixed plate 2, and a number of hooks 8 are provided on the side of the push plate 7 away from the cam 5. A protective net 10 is provided between the left and right push plates 7 through the hooks 8, and a positive folding plate 11 is fixed to the left end of the first fixed plate 2, and an inverted folding plate 12 used in conjunction with the positive folding plate 11 is fixed to the right side of the second fixed plate 3, and a fixed structure 13 is provided on the front and back of the top of the inverted folding plate 12.

[0025] The fixing structure 13 includes a movable plate 131, a fastening bolt 132 and a limiting hole 133. One end of the movable plate 131 is rotatably connected to the top of the second fixed plate 3, and the interior of the other end of the movable plate 131 is threadedly connected to the surface of the fastening bolt 132. The limiting hole 133 is opened at the front and rear of the top of the first fixed plate 2, and one end of the fastening bolt 132 is used in conjunction with the interior of the limiting hole 133. In this way, when the bottom of the positive folding plate 11 is clamped on the surface of the inverted folding plate 12, the movable plate 131 can be rotated so that one end of the movable plate 131 is rotated to the surface of the joint of the first fixed plate 2 and the second fixed plate 3, and then the fastening bolt 132 is rotated, so that the other end of the fastening bolt 132 is screwed into the interior of the limiting hole 133, thereby facilitating the fixation between the spliced first fixed plate 2 and the second fixed plate 3.

[0026] The upper and lower parts of the first fixed plate 2 are fixedly connected with movable rods 14, and the inside of the push plate 7 is movably connected to the surface of the movable rods 14, so as to provide auxiliary support for the push plate 7 and maintain its stability during movement.

[0027] Limiting plates 15 are fixed on the upper and lower sides of one side of the push plate 7. The limiting plates 15 are used in conjunction with the cam 5. In this way, when the cam 5 rotates toward one side of the push plate 7, the rotating cam 5 can be limited by the limiting plates 15, which facilitates the subsequent better application of force to the push plate 7.

[0028] The width of the inner side of the movable groove 18 is greater than the upper and lower widths of the hook 8 , so that the hook 8 will not be affected from sliding out of the movable groove 18 .

[0029] The front and rear ends of both ends of the first fixing plate 2 and the second fixing plate 3 are threadedly connected with fixing bolts 16 for fixing them to the slope body 1. In this way, when the first fixing plate 2 and the second fixing plate 3 are in contact with the surface of the slope body 1, the fixing bolts 16 can be rotated to facilitate fixing the first fixing plate 2 and the second fixing plate 3 to the surface of the slope body 1.

[0030] Working principle: When in use, the first fixing plate 2 and the second fixing plate 3 can be attached to the top of the slope body 1, and then fixed by the fixing bolts 16, so that the protective net 10 can block and protect the gravel on the surface of the slope body 1. If the size of the blockage is large, the positive folding plate 11 at the first fixing plate 2 of another protective device can be clamped on the surface of the inverted folding plate 12 at the second fixing plate 3 fixed on the top of the slope body 1. After the clamping is completed, the two clamped protective devices can be fixed by the fixing structure 13. If the protective net 10 is damaged during use later, it can be turned The torsion plate 4 is moved, and the lower cam 5 is driven to rotate, and the driving wheel 6 is driven to rotate at the same time, and then the push plate 7 and the upper cam 5 are driven to rotate together through the belt, so that the protruding part of the cam 5 applies force to the push plate 7, and drives the hook 8 to be located on the outside of the movable groove 18, and then the protective net 10 can be removed from the surface of the hook 8, and finally the new protective net 10 is hung on the inside of the hook 8 again, and the torsion plate 4 is reversed, and then the elastic force of the tension spring 9 itself is used to drive the push plate 7, the hook 8 and one end of the protective net 10 into the first fixed plate 2 or the second fixed plate 3 again.

[0031] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An open-pit coal mine slope protection device, comprising a slope body (1), characterized in that: Also includes: A first fixing plate (2) and a second fixing plate (3) are respectively arranged on both sides of the surface of the slope body (1), and a movable groove (18) is provided on the opposite sides of the first fixing plate (2) and the second fixing plate (3); A cam (5) is rotatably connected to both sides of the first fixed plate (2) and the second fixed plate (3), a driving wheel (6) is fixed to the rotating shaft surface of the lower cam (5), a torsion plate (4) is fixed to the front end of the rotating shaft of the lower cam (5), and a driven wheel (17) is fixed to the rotating shaft surface of the upper cam (5), and the driven wheel (17) is connected to the driving wheel (6) through a belt. A push plate (7) movably connected to the inside of the first fixed plate (2) and the second fixed plate (3), a plurality of tension springs (9) are fixed between one side of the push plate (7) and the inner wall of the first fixed plate (2), a plurality of hooks (8) are provided on the side of the push plate (7) away from the cam (5), and a protective net (10) is provided between the left and right push plates (7) via the hooks (8); A positive folding plate (11) is fixed to the left end of the first fixed plate (2), and a negative folding plate (12) is fixed to the right side of the second fixed plate (3) for use with the positive folding plate (11), and fixing structures (13) are provided at the front and rear sides of the top of the negative folding plate (12).

2. The open-pit coal mine slope protection device according to claim 1, characterized in that: The fixing structure (13) comprises a movable plate (131) rotatably connected to the top of the second fixing plate (3), a fastening bolt (132) threadedly connected to one end of the movable plate (131), and one end of the fastening bolt (132) cooperates with the inside of the limiting hole (133).

3. The open-pit coal mine slope protection device according to claim 1, characterized in that: The upper and lower parts of the interior of the first fixed plate (2) are fixedly connected to movable rods (14), and the interior of the push plate (7) is movably connected to the surface of the movable rod (14).

4. The open-pit coal mine slope protection device according to claim 1, characterized in that: Limiting plates (15) are fixed on the upper and lower sides of one side of the push plate (7), and the limiting plates (15) are used in conjunction with the cam (5).

5. The open-pit coal mine slope protection device according to claim 1, characterized in that: The width of the inner side of the movable groove (18) is greater than the upper and lower widths of the hook (8).

6. The open-pit coal mine slope protection device according to claim 1, characterized in that: The front and rear sides of both ends of the first fixing plate (2) and the second fixing plate (3) are both threadedly connected with fixing bolts (16) for fixing them to the slope body (1).

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