CN212850540U

CN212850540U - Wireless network bridge equipment for open-air coal mine

Info

Publication number: CN212850540U
Application number: CN202022112805.9U
Authority: CN
Inventors: 岳文彬; 解志宏; 王昱; 王毅; 李诗楠; 刘增辉; 王燕; 李文博
Original assignee: North Weijiamao Coal Power Co Ltd
Current assignee: North Weijiamao Coal Power Co Ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-03-30
Anticipated expiration: 2030-09-24

Abstract

The utility model discloses a wireless bridge equipment for open-air coal mine, the on-line screen storage device comprises a base, the top central point of base puts fixed mounting has the support column, the top fixed mounting of support column has the top cap, sliding connection has the rectangle box on the outer wall of support column, be provided with the locating hole that a plurality of equidistant set up on the outer wall of support column, one side of rectangle box is provided with the sliding hole, sliding connection has the locating lever on the inner wall of sliding hole, the one end of locating lever runs through the sliding hole and extends to in the locating hole, the other end welding of locating lever has the arm-tie. The utility model discloses simple structure, the height of being convenient for adjust wireless network bridge equipment body, and the wireless network bridge equipment body of convenient to detach installation makes things convenient for the later maintenance wireless network bridge equipment body, and can be firm will the utility model discloses install in the mine field, the steadiness is good, can effectively avoid damaging because of empting and leading to wireless network bridge equipment, has guaranteed the progress of mining, convenient to use.

Description

Wireless network bridge equipment for open-air coal mine

Technical Field

The utility model relates to an opencut coal mine technical field especially relates to a wireless network bridge equipment for opencut coal mine.

Background

Opencast coal mines refer to coal deposits on the earth's surface or shallow layers due to geographical changes, and direct opencast mining of coal mines is used, so that it is economical to use opencast mining when the mine is close to the earth's surface, and the soil above the mine is called topsoil. The method comprises the steps of burying explosives in an undeveloped surface soil zone, removing surface soil by using a dredger, an excavator, a truck and other equipment, filling the surface soil into a pit mined before, exposing a mineral layer after the surface soil is removed, drilling or crushing mineral blocks, and loading ore sand into the truck by using a front loader to be transported to a coal preparation plant for further treatment.

The wireless bridge is the bridge of a wireless network, and realizes a bridge for setting up communication between two or more networks by using a wireless transmission mode; wireless bridge is divided into circuit type bridge and data type bridge from the communication mechanism, and install in open-air or outdoor eminence mostly, open-air coal mine can use a large amount of wireless bridge equipment, wireless bridge equipment all installs on the tripod among the prior art usually, then place the tripod in the stope, but there are a large amount of small broken stones and small coal cinder in the place of open-air coal mine, the tripod is placed on small broken stone and small coal cinder, receive under the condition that external forces such as strong wind or staff touched the tripod carelessly, the tripod is very easily emptyd, cause wireless bridge equipment to take place to collide with and damage easily, not only can cause unnecessary loss, still can cause the communication interrupt of stope, influence the progress of mining, so we propose a wireless bridge equipment for open-air coal mine, for solve the above-mentioned problem.

Disclosure of Invention

The utility model aims at solving the defects in the prior art and providing a wireless bridge device for an open-air coal mine.

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

a wireless network bridge device for open-air coal mines comprises a base, wherein a support column is fixedly installed at the center of the top of the base, a top cover is fixedly installed at the top of the support column, a rectangular box is connected to the outer wall of the support column in a sliding mode, a plurality of positioning holes are formed in the outer wall of the support column and are arranged at equal intervals, a sliding hole is formed in one side of the rectangular box, a positioning rod is connected to the inner wall of the sliding hole in a sliding mode, one end of the positioning rod penetrates through the sliding hole and extends into the positioning hole, a pull plate is welded to the other end of the positioning rod, a first tension spring is sleeved on the outer wall of the positioning rod, two ends of the first tension spring are respectively welded to one side, close to each other, of the pull plate and the rectangular box, a support plate is welded to one side of the bottom of the, a fixing component for fixing the wireless bridge equipment body is arranged in the placing groove;

two guide rods are symmetrically welded on one side of the top of the rectangular box, the outer walls of the two guide rods are connected with the same pressing plate in a sliding mode, the bottom of the pressing plate is abutted to the top of the wireless bridge device body, a second tension spring is sleeved on the outer wall of the guide rod, and the top end and the bottom end of the second tension spring are respectively welded with the bottom of the pressing plate and the top of the rectangular box;

the utility model discloses a clamp plate, including base, one side of base, the bottom of base, the threaded rod of lower margin, the base is run through to the threaded rod of lower margin, the one side inner wall of recess rotates and is connected with two-way screw rod, the one end of two-way screw rod runs through the base and extends to one side of base, threaded connection has two splint with two-way screw rod looks adaptation on the outer wall of two-way screw rod respectively, the bottom of splint runs through the recess and extends to the below of base, the both sides inner wall symmetric welding of recess has two slide bars, the one end of slide bar runs through two splint respectively and extends to one side of splint.

Preferably, fixed subassembly includes that standing groove both sides inner wall rotates the same pivot of connecting, the fixed cover of symmetry is equipped with two arc splint on the outer wall of pivot, one side of arc splint is inconsistent with one side of wireless bridge equipment body, the symmetry cover is equipped with two torsional springs on the outer wall of pivot, and the one end that two torsional springs kept away from each other welds with the both sides inner wall of standing groove respectively, and the one end that two torsional springs are close to each other welds with one side that two arc splint kept away from each other respectively mutually.

Preferably, the top welding of guide arm has the limiting plate, the limiting plate is located the top of clamp plate, bottom one side of clamp plate is provided with the draw-in groove with wireless bridge equipment body looks adaptation, the top of wireless bridge equipment body extends to in the draw-in groove and contacts with the top inner wall of draw-in groove.

Preferably, a plurality of round holes arranged at equal intervals are formed in the inner wall of the bottom of the placing groove.

Preferably, the bottom of one side of splint is provided with a plurality of equidistant rubber boards that set up.

Preferably, the top of lower margin fixed mounting has the handle, the one end fixed mounting of two-way screw rod has the handle.

Preferably, the equal fixed mounting in both sides of support column has the guide rail, the equal fixed mounting in both sides inner wall of rectangle box has the slider, slider and guide rail sliding connection.

Compared with the prior art, the beneficial effects of the utility model are that: 1. in the utility model, two clamp plates are arranged on two sides of the large stone block and the bottom of the base is contacted with the top of the large stone block, the rotary handle can drive the two-way screw rod to rotate, the two clamp plates can be driven by the rotation of the two-way screw rod to move towards the mutually approaching direction, so that the two clamp plates can be clamped on the large stone block, the rotary handle can drive the ground feet to rotate, the bottom of the ground feet can be contacted with the ground, and the base can be supported to increase the stability of the base;

2. the utility model discloses in, rotate the arc splint and can drive the pivot and rotate, can make the torsional spring take place deformation simultaneously, put into the standing groove with wireless bridge equipment body in the inclined mode, loosen the arc splint, then under the effect of torsional spring, the arc splint can contact with wireless bridge equipment body, upwards stimulate the clamp plate, then can stretch the second extension spring, right wireless bridge equipment body and make wireless bridge equipment body paste the rectangle box tightly, loosen the clamp plate this moment, under the effect of second extension spring, the clamp plate can move down, and make the draw-in groove block at the top of wireless bridge equipment body, and then can firmly fix wireless bridge equipment body in the backup pad;

3. the utility model discloses in, when the height of wireless network bridge equipment body is adjusted to needs, outside pulling arm-tie can drive the locating lever and remove and break away from the locating hole, can tensile first extension spring simultaneously, upwards or promote the rectangle box downwards, and the rectangle box can drive backup pad and wireless network bridge equipment body and carry out longitudinal movement, when adjusting required position, loosens the arm-tie, and under the effect of first extension spring, the locating lever can block into in another locating hole and brake the rectangle box.

The utility model discloses simple structure, the height of being convenient for adjust wireless network bridge equipment body, and the wireless network bridge equipment body of convenient to detach installation makes things convenient for the later maintenance wireless network bridge equipment body, and can be firm will the utility model discloses install in the mine field, the steadiness is good, can effectively avoid damaging because of empting and leading to wireless network bridge equipment, has guaranteed the progress of mining, convenient to use.

Drawings

Fig. 1 is a three-dimensional schematic view of a wireless bridge device for an open-air coal mine according to the present invention;

fig. 2 is an enlarged view of a portion a of a wireless bridge device for an open-air coal mine according to the present invention;

FIG. 3 is a three-dimensional schematic view of another perspective of FIG. 1;

FIG. 4 is a three-dimensional schematic view of another perspective of FIG. 3;

fig. 5 is an enlarged view of a portion B of a wireless bridge device for an open-air coal mine according to the present invention;

FIG. 6 is an enlarged view of portion C of a wireless bridge device for an open pit coal mine according to the present invention;

fig. 7 is a front view of a wireless bridge device for an open pit coal mine according to the present invention;

fig. 8 is a left side view of a wireless bridge device for an open pit coal mine according to the present invention;

fig. 9 is a right side view of a wireless bridge device for an open pit coal mine according to the present invention;

fig. 10 is a bottom view of a wireless bridge device for an open pit coal mine according to the present invention;

fig. 11 is a cross-sectional view of a base of a wireless bridge device for an open pit coal mine according to the present invention;

fig. 12 is an exploded schematic view of the rectangular box, the positioning rod, the pressing plate, the wireless bridge device body, the supporting plate and the arc-shaped clamping plate of the wireless bridge device for the open-air coal mine according to the present invention;

fig. 13 is a schematic connection diagram of the pressure plate, the guide rod and the second tension spring of the wireless bridge device for the open-air coal mine according to the present invention;

fig. 14 is a three-dimensional schematic view of a cleat of a wireless bridge device for an open pit coal mine according to the present invention;

fig. 15 is a three-dimensional schematic view of a support plate of a wireless bridge device for an open-air coal mine according to the present invention.

In the figure: 1. a base; 2. a support pillar; 3. positioning holes; 4. a top cover; 5. a guide rail; 6. a slider; 7. a handle; 8. ground feet; 9. a rectangular box; 10. a first tension spring; 11. pulling a plate; 12. pressing a plate; 13. a wireless bridge device body; 14. a guide bar; 15. a second tension spring; 16. a support plate; 17. a splint; 18. an arc-shaped splint; 19. a handle; 20. a bidirectional screw; 21. a groove; 22. a slide bar; 23. positioning a rod; 24. a slide hole; 25. a placement groove; 26. a torsion spring; 27. a rotating shaft; 28. a circular hole; 29. a rubber plate; 30. a limiting plate; 31. a clamping groove.

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.

Referring to fig. 1-15, a wireless bridge device for an open-air coal mine comprises a base 1, a support pillar 2 is fixedly installed at the top center position of the base 1, a top cover 4 is fixedly installed at the top of the support pillar 2, a rectangular box 9 is slidably connected to the outer wall of the support pillar 2, a plurality of positioning holes 3 are formed in the outer wall of the support pillar 2 and are arranged at equal intervals, a sliding hole 24 is formed in one side of the rectangular box 9, a positioning rod 23 is slidably connected to the inner wall of the sliding hole 24, one end of the positioning rod 23 penetrates through the sliding hole 24 and extends into the positioning hole 3, a pull plate 11 is welded to the other end of the positioning rod 23, a first tension spring 10 is sleeved on the outer wall of the positioning rod 23, two ends of the first tension spring 10 are respectively welded to one side, close to each other, of the pull plate 11 and the rectangular, the inner wall of the bottom of the placing groove 25 is provided with a wireless bridge device body 13, and the placing groove 25 is internally provided with a fixing component for fixing the wireless bridge device body 13;

two guide rods 14 are symmetrically welded on one side of the top of the rectangular box 9, the outer walls of the two guide rods 14 are connected with the same pressing plate 12 in a sliding mode, the bottom of the pressing plate 12 is abutted against the top of the wireless bridge device body 13, a second tension spring 15 is sleeved on the outer wall of each guide rod 14, and the top end and the bottom end of each second tension spring 15 are respectively welded with the bottom of the pressing plate 12 and the top of the rectangular box 9;

one side of the bottom of the base 1 is provided with a groove 21, the other side of the bottom of the base 1 is in threaded connection with an anchor 8, a threaded rod of the anchor 8 penetrates through the base 1 and extends to the upper part of the base 1, the inner wall of one side of the groove 21 is in rotary connection with a bidirectional screw 20, one end of the bidirectional screw 20 penetrates through the base 1 and extends to one side of the base 1, the outer wall of the bidirectional screw 20 is respectively in threaded connection with two clamping plates 17 matched with the bidirectional screw 20, the bottom end of each clamping plate 17 penetrates through the groove 21 and extends to the lower part of the base 1, two sliding rods 22 are symmetrically welded on the inner walls of the two sides of the groove 21, one end of each sliding rod 22 penetrates through the two clamping plates 17 and extends to one side of the clamping plate 17, the two clamping plates 17 are arranged on the two sides of a boulder and enable the bottom of the base 1 to be in contact with the top of the, the two clamping plates 17 can be clamped on the large stone, the rotating handle 7 can drive the ground feet 8 to rotate, the bottom of the ground feet 8 can be in contact with the ground, the base 1 can be supported to increase the stability of the base 1, the arc-shaped clamping plate 18 can be rotated to drive the rotating shaft 27 to rotate, meanwhile, the torsion spring 26 can be deformed, the wireless bridge device body 13 is placed in the placing groove 25 in an inclined mode, the arc-shaped clamping plate 18 is loosened, the arc-shaped clamping plate 18 can be in contact with the wireless bridge device body 13 under the action of the torsion spring 26, the pressing plate 12 is pulled upwards, the second tension spring 15 is stretched, the wireless bridge device body 13 is righted, the wireless bridge device body 13 is made to be attached to the rectangular box 9, the pressing plate 12 is loosened at the moment, the pressing plate 12 can move downwards under the action of the second tension spring 15, the clamping groove 31 is clamped at the top of the wireless bridge device body 13, and the wireless bridge device body 13 can be firmly, when the height of the wireless network bridge device body 13 needs to be adjusted, the pulling plate 11 is pulled outwards to drive the positioning rod 23 to move and separate from the positioning hole 3, at the same time, the first tension spring 10 will be stretched to push the rectangular box 9 upwards or downwards, the rectangular box 9 can drive the support plate 16 and the wireless bridge device body 13 to move longitudinally, when the wireless bridge device is adjusted to a required position, the pulling plate 11 is loosened, the positioning rod 23 can be clamped into the other positioning hole 3 and brake the rectangular box 9 under the action of the first tension spring 10, so that the height of the wireless bridge device body 13 can be conveniently adjusted, the wireless network bridge equipment body 13 is convenient to disassemble and assemble, the wireless network bridge equipment body 13 is convenient to maintain in the later period, the utility model can be firmly installed in a mine field, the stability is good, the damage of wireless bridge equipment caused by dumping can be effectively avoided, the mining progress is guaranteed, and the use is convenient.

In the utility model, the fixing component comprises a same rotating shaft 27 rotatably connected with the inner walls of the two sides of the placing groove 25, two arc-shaped clamping plates 18 are symmetrically fixedly sleeved on the outer wall of the rotating shaft 27, one side of each arc-shaped clamping plate 18 is abutted against one side of the wireless bridge device body 13, two torsion springs 26 are symmetrically sleeved on the outer wall of the rotating shaft 27, the ends of the two torsion springs 26 far away from each other are respectively welded with the inner walls of the two sides of the placing groove 25, the ends of the two torsion springs 26 close to each other are respectively welded with the sides of the two arc-shaped clamping plates 18 far away from each other, a limiting plate 30 is welded at the top of the guide rod 14, the limiting plate 30 is positioned above the pressing plate 12, one side of the bottom of the pressing plate 12 is provided with a clamping groove 31 matched with the wireless bridge device body 13, the top of the wireless bridge device body 13 extends into the clamping groove 31 and, the bottom of one side of the clamp plate 17 is provided with a plurality of rubber plates 29 which are arranged at equal intervals, the top of the foot margin 8 is fixedly provided with a handle 7, one end of the bidirectional screw rod 20 is fixedly provided with a handle 19, both sides of the supporting column 2 are fixedly provided with guide rails 5, both inner walls of both sides of the rectangular box 9 are fixedly provided with sliders 6, the sliders 6 are connected with the guide rails 5 in a sliding manner, the two clamp plates 17 are arranged on both sides of the large stone block, the bottom of the base 1 is contacted with the top of the large stone block, the rotating handle 19 can drive the bidirectional screw rod 20 to rotate, the two clamp plates 17 can be driven by the rotation of the bidirectional screw rod 20 to move towards the mutually approaching direction, the two clamp plates 17 can be clamped on the large stone head, the rotating handle 7 can drive the foot margin 8 to rotate, the bottom of the foot margin 8 can be contacted with the ground, the base 1 can be, meanwhile, the torsion spring 26 is deformed, the wireless bridge device body 13 is placed into the placing groove 25 in an inclined mode, the arc-shaped clamping plate 18 is loosened, the arc-shaped clamping plate 18 is contacted with the wireless bridge device body 13 under the action of the torsion spring 26, the pressing plate 12 is pulled upwards, the second tension spring 15 is stretched, the wireless bridge device body 13 is righted, the wireless bridge device body 13 is attached to the rectangular box 9, the pressing plate 12 is loosened, the pressing plate 12 moves downwards under the action of the second tension spring 15, the clamping groove 31 is clamped at the top of the wireless bridge device body 13, the wireless bridge device body 13 can be firmly fixed in the supporting plate 16, when the height of the wireless bridge device body 13 needs to be adjusted, the pulling plate 11 is pulled outwards to drive the positioning rod 23 to move and separate from the positioning hole 3, the first tension spring 10 is stretched, and the rectangular box 9 is pushed upwards or downwards, rectangle box 9 can drive backup pad 16 and wireless bridge equipment body 13 and carry out longitudinal movement, when adjusting required position, loosen arm-tie 11, under the effect of first extension spring 10, locating lever 23 can block into in another locating hole 3 and brake rectangle box 9, be convenient for adjust wireless bridge equipment body 13's height, and be convenient for dismantle installation wireless bridge equipment body 13, make things convenient for later maintenance wireless bridge equipment body 13, and can be firm will the utility model discloses install in the mining field, the steadiness is good, can effectively avoid leading to wireless bridge equipment to damage because of empting, has guaranteed the progress of mining, convenient to use.

The working principle is as follows: when the wireless bridge equipment is used, a large stone block is firstly found near the position where the wireless bridge equipment body 13 needs to be arranged, the two clamp plates 17 are arranged on two sides of the large stone block, the bottom of the base 1 is contacted with the top of the large stone block, the handle 19 is rotated, the handle 19 can drive the two-way screw rod 20 to rotate, the two clamp plates 17 can be driven by the rotation of the two-way screw rod 20 to move towards the direction close to each other, the two clamp plates 17 can be clamped on the large stone head, then the handle 7 is rotated, the handle 7 can drive the lower feet 8 to rotate, the bottom of the lower feet 8 can be contacted with the ground, the base 1 can be supported to increase the stability of the base 1, the wireless bridge equipment can be fixed on the large stone head, the arc clamp plate 18 is rotated towards the direction far away from the rectangular box 9, the arc clamp plate 18 can drive the rotating shaft 27 to rotate, meanwhile, the torsion spring 26 can be deformed, the wireless bridge, when the arc-shaped clamping plate 18 is loosened, the arc-shaped clamping plate 18 and the rotating shaft 27 can be reset under the action of the torsion spring 26, the arc-shaped clamping plate 18 can be in contact with the wireless bridge device body 13 and push the wireless bridge device body 13 towards the rectangular box 9, then the pressing plate 12 is pulled upwards, the pressing plate 12 can slide on the guide rod 14, meanwhile, the second tension spring 15 can be stretched, when the moving height of the pressing plate 12 is greater than that of the wireless bridge device body 13, the wireless bridge device body 13 is righted, the wireless bridge device body 13 is attached to the rectangular box 9, at the moment, the pressing plate 12 is loosened, under the action of the second tension spring 15, the pressing plate 12 can move downwards, the clamping groove 31 is clamped at the top of the wireless bridge device body 13, the wireless bridge device body 13 can be firmly fixed in the supporting plate 16, when the height of the wireless bridge device body 13 needs to be adjusted, the pulling plate 11 outwards, the pulling plate 11 can drive the positioning rod 23 to move and separate from the positioning hole 3, and at the same time, the first tension spring 10 can be stretched, when the positioning rod 23 separates from the positioning hole 3, the rectangular box 9 can be pushed upwards or downwards, the rectangular box 9 can drive the sliding block 6 to slide on the guide rail 5, and the rectangular box 9 can drive the supporting plate 16 and the wireless bridge device body 13 to move longitudinally, when the required position is adjusted, the pulling plate 11 is loosened, under the action of the first tension spring 10, the positioning rod 23 can be clamped into another positioning hole 3 and brake the rectangular box 9, so that the height of the wireless bridge device body 13 can be conveniently adjusted, the wireless bridge device body 13 can be conveniently disassembled and installed, the wireless bridge device body 13 can be conveniently maintained in the later period, the utility model can be firmly installed in a mine field, the stability is good, and the damage of the wireless bridge device caused by toppling can be effectively avoided, the mining progress is guaranteed, and the use is convenient.

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 utility model provides a wireless bridge equipment for open-air coal mine, includes base (1), its characterized in that, the top central point of base (1) puts fixed mounting has support column (2), the top fixed mounting of support column (2) has top cap (4), sliding connection has rectangle box (9) on the outer wall of support column (2), be provided with locating hole (3) that a plurality of equidistant settings on the outer wall of support column (2), one side of rectangle box (9) is provided with slip hole (24), sliding connection has locating lever (23) on the inner wall of slip hole (24), the one end of locating lever (23) is run through in slip hole (24) and extend to locating hole (3), the other end welding of locating lever (23) has arm-tie (11), the cover is equipped with first extension spring (10) on the outer wall of locating lever (23), the both ends of first extension spring (10) weld mutually with one side that arm-tie (11) and rectangle box (9) are close to each other respectively mutually and weld mutually and a supporting plate (16) is welded on one side of the bottom of the rectangular box (9), a placing groove (25) is formed in the top of the supporting plate (16), a wireless bridge device body (13) is arranged on the inner wall of the bottom of the placing groove (25), and a fixing component for fixing the wireless bridge device body (13) is arranged in the placing groove (25);

two guide rods (14) are symmetrically welded on one side of the top of the rectangular box (9), the outer walls of the two guide rods (14) are connected with the same pressing plate (12) in a sliding mode, the bottom of the pressing plate (12) is abutted to the top of the wireless bridge equipment body (13), a second tension spring (15) is sleeved on the outer wall of each guide rod (14), and the top end and the bottom end of each second tension spring (15) are respectively welded with the bottom of the pressing plate (12) and the top of the rectangular box (9);

a groove (21) is arranged on one side of the bottom of the base (1), the other side of the bottom of the base (1) is in threaded connection with a ground foot (8), the threaded rod of the ground pin (8) penetrates through the base (1) and extends to the upper part of the base (1), the inner wall of one side of the groove (21) is rotationally connected with a bidirectional screw (20), one end of the bidirectional screw (20) penetrates through the base (1) and extends to one side of the base (1), the outer wall of the two-way screw rod (20) is respectively connected with two clamping plates (17) which are matched with the two-way screw rod (20) in a threaded manner, the bottom end of the clamping plate (17) penetrates through the groove (21) and extends to the lower part of the base (1), two sliding rods (22) are symmetrically welded on the inner walls of the two sides of the groove (21), one end of the sliding rod (22) penetrates through the two clamping plates (17) respectively and extends to one side of the clamping plates (17).

2. The wireless bridge device for the open-air coal mine according to claim 1, wherein the fixing component comprises a same rotating shaft (27) rotatably connected with inner walls of two sides of the placing groove (25), two arc-shaped clamping plates (18) are symmetrically and fixedly sleeved on the outer wall of the rotating shaft (27), one side of each arc-shaped clamping plate (18) is abutted to one side of the wireless bridge device body (13), two torsion springs (26) are symmetrically sleeved on the outer wall of the rotating shaft (27), one ends of the two torsion springs (26) far away from each other are respectively welded with the inner walls of two sides of the placing groove (25), and one ends of the two torsion springs (26) close to each other are respectively welded with one sides of the two arc-shaped clamping plates (18) far away from each other.

3. The wireless bridge device for the open pit coal mine according to claim 1, wherein a limiting plate (30) is welded on the top of the guide rod (14), the limiting plate (30) is located above the pressing plate (12), a clamping groove (31) matched with the wireless bridge device body (13) is formed in one side of the bottom of the pressing plate (12), and the top of the wireless bridge device body (13) extends into the clamping groove (31) and is in contact with the inner wall of the top of the clamping groove (31).

4. The wireless bridge device for open-pit coal mines according to claim 1, characterized in that the inner wall of the bottom of the placement trough (25) is provided with a plurality of equally spaced circular holes (28).

5. The wireless bridge device for open-air coal mines according to claim 1, characterized in that the bottom of one side of the splint (17) is provided with a plurality of equally spaced rubber plates (29).

6. The wireless bridge device for the open pit coal mine according to claim 1, wherein a handle (7) is fixedly installed at the top of the ground leg (8), and a handle (19) is fixedly installed at one end of the bidirectional screw rod (20).

7. The wireless bridge device for the open-air coal mine according to claim 1, wherein guide rails (5) are fixedly mounted on two sides of the supporting column (2), sliding blocks (6) are fixedly mounted on inner walls of two sides of the rectangular box (9), and the sliding blocks (6) are slidably connected with the guide rails (5).