CN118048840A - Underground random pedestrian bridge for coal mine - Google Patents

Abstract

The invention discloses a coal mine underground random pedestrian bridge, which comprises a bridge, a ladder stand and a supporting piece, wherein the bridge is suitable for being arranged above a conveyor and extends along a first direction; the two crawling ladders are respectively arranged at two ends of the bridge, one end of each crawling ladder is rotatably connected with one end of the bridge, and the other end of each crawling ladder extends downwards and inclines towards a direction away from the conveyor; the support piece is a plurality of, and a plurality of support pieces divide into two sets of, and two sets of support pieces are arranged along first direction interval, and every support piece of group includes a plurality of support pieces, and a plurality of support pieces in every support piece of group are arranged along the extending direction interval of conveyer, and support piece's one end links to each other with the conveyer, and support piece's the other end links to each other with the bottom surface of gap bridge. The underground coal mine random pedestrian bridge has the advantages of being convenient to use and capable of reducing the labor intensity of operators.

Description

Underground random pedestrian bridge for coal mine

Technical Field

The invention relates to the technical field of underground coal mine protection devices, in particular to a random pedestrian bridge crossing in underground coal mine.

Background

In underground coal mine roadways, belt conveyors are often used for transportation. Because of the work requirement, operators need to span the belt conveyor to carry out maintenance operation, and in order to facilitate the work of the operators, a fixed pedestrian bridge is usually installed at the tail of the belt conveyor.

In the prior art, along with the propulsion of a fully mechanized mining working face and a tunneling working face, the tail of the belt conveyor also propels along with the propulsion of the fully mechanized mining working face and the tunneling working face, and people need to be manually moved to pass a bridge, so that the labor intensity is high.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the invention provides a coal mine underground random pedestrian bridge, which has the advantages of convenient use and capability of reducing the labor intensity of operators.

The underground random pedestrian bridge for the coal mine of the embodiment of the invention comprises the following steps:

a bridge adapted to be disposed over the conveyor, the bridge extending in a first direction;

The two crawling ladders are respectively arranged at two ends of the bridge, one end of each crawling ladder is rotatably connected with one end of the bridge, and the other end of each crawling ladder extends downwards and inclines towards a direction away from the conveyor;

The support piece, the support piece is a plurality of, and a plurality of support piece falls into two sets of, and two sets of support piece are followed the first direction interval arrangement, every group support piece include a plurality of support piece, every group a plurality of in the support piece is followed the extending direction interval arrangement of conveyer, support piece's one end with the conveyer links to each other, support piece's the other end with the bottom surface of crossing a bridge links to each other.

According to the underground coal mine random type pedestrian bridge crossing method, the bridge crossing is fixedly arranged on the conveyor through the supporting piece, so that the bridge crossing can move along with the movement of the conveyor, the bridge crossing is prevented from being moved manually, the labor intensity of operators is reduced, the operation flow is simplified, and the pedestrian bridge crossing is more convenient and faster to use.

In some embodiments, the colliery is random pedestrian crossing bridge still includes coupling assembling, coupling assembling is used for connecting the crossing bridge with the cat ladder, coupling assembling includes:

the periphery of the first connecting part is circular and is arranged at one end of the bridge, the first connecting part is provided with a plurality of protruding parts, the protruding parts are arranged at intervals around the periphery of the first connecting part, and a notch is formed between every two adjacent protruding parts;

The second connecting part is arranged at one end of the crawling ladder and is provided with an insert which is matched with the notch.

In some embodiments, the connecting assembly further comprises a first limiting member, the first limiting member comprises a first inserting rod, a limiting rod and a first elastic member, the limiting rod is arranged at one end of the first inserting rod, the inserting member is provided with a through hole, the other end of the first inserting rod penetrates into the through hole, the first elastic member is arranged on the first inserting rod and located between the inserting member and the limiting rod, the protruding portion is provided with a first inserting hole, and the other end of the first inserting rod is matched with the first inserting hole.

In some embodiments, the support member includes a first support rod and a connecting base, the connecting base includes two side plates and a connecting plate, the two side plates are arranged at intervals along the first direction and are opposite to each other, a mounting hole is formed in the side plate, a fastener is suitable for penetrating into the mounting hole, the connecting plate is arranged between the two side plates and is connected with the two side plates, one end of the first support rod is connected with the connecting plate, the other end of the first support rod is connected with the bottom surface of the bridge, and at least part of the conveyor is arranged between the two side plates and is connected with the side plates through the fastener.

In some embodiments, the bridge comprises:

a platform extending in a first direction;

The two blocking pieces are arranged on the top surface of the platform at intervals along a second direction, and the second direction is orthogonal to the first direction;

the supporting net is arranged on the inner wall surface of the baffle and the top surface of the platform.

In some embodiments, the platform comprises:

the first rod bodies extend along a first direction, two first rod bodies are arranged at intervals along a second direction and are oppositely arranged;

The pull rods are arranged between the two first rod bodies and extend along the second direction, the pull rods are used for connecting the two first rod bodies, the plurality of pull rods are arranged at intervals along the first direction, and at least part of the support net is paved on the pull rods.

In some embodiments, the ladder comprises:

the two second rod bodies are arranged at intervals along the second direction and are opposite to each other, one end of each second rod body is connected with one end of the platform, and the other end of each second rod body extends downwards and inclines towards a direction away from the conveyor;

The third rod bodies are arranged between the two rod bodies, the number of the third rod bodies is multiple, and the third rod bodies are arranged at intervals along the extending direction of the second rod body.

In some embodiments, the random pedestrian bridge in the coal mine further comprises a support assembly, the support assembly comprises two second support rods, the two second support rods are in one-to-one correspondence with the two second rod bodies, the second support rods are arranged in the second rod bodies in a penetrating way and are movable relative to the second rod bodies, the second support rods have a first position and a second position,

When the second support rod is located at the first position, the second support rod is located in the second rod body, and when the second support rod is located at the second position, one end of the second support rod extends out of the second rod body and abuts against the ground.

In some embodiments, the other end of the second rod body is provided with a through hole, the through hole extends along the extending direction of the second rod body, a slide way is arranged on the inner wall surface of the through hole, the slide way extends along the extending direction of the through hole, the slide way is not communicated with the other end of the second rod body, the other end of the second support rod is provided with a sliding block, and the sliding block is slidably mounted in the slide way.

In some embodiments, the support assembly further comprises:

the fourth rod body is arranged between the two second rod bodies and is adjacent to the other end of the second rod body;

The two second limiting parts are arranged at one end of the fourth rod body and can be inserted into the through hole on one second rod body, the other second limiting part is arranged at the other end of the fourth rod body and can be inserted into the through hole on the other second rod body,

When the second support rod is located at the first position, the second limiting rod is inserted into the second support rod, and when the second support rod is located at the second position, the second limiting piece is inserted into the through hole and located above the other end of the second support rod.

Drawings

FIG. 1 is an elevation view of a random pedestrian bridge in a coal mine of an embodiment of the present invention.

Fig. 2 is a schematic diagram of a connection assembly for a random pedestrian bridge under a coal mine in an embodiment of the invention.

Fig. 3 is a schematic diagram of a first connector for a random pedestrian bridge in a coal mine according to an embodiment of the invention.

Fig. 4 is a schematic diagram of a second connector for a random pedestrian bridge in a coal mine according to an embodiment of the invention.

Fig. 5 is an elevation view of a stop for a random pedestrian crossing in a coal mine in accordance with an embodiment of the present invention.

FIG. 6 is a side view of a stop for a random pedestrian bridge downhole in a coal mine in accordance with an embodiment of the present invention.

Fig. 7 is a top view of a barrier for a random pedestrian bridge downhole in a coal mine in accordance with an embodiment of the present invention.

Fig. 8 is a schematic diagram of a ladder for a random pedestrian crossing in a coal mine according to an embodiment of the invention.

Fig. 9 is a side view of a ladder stand for a random pedestrian crossing in a coal mine according to an embodiment of the invention.

FIG. 10 is a schematic diagram of a support assembly for a random pedestrian bridge downhole in a coal mine in accordance with an embodiment of the present invention.

Fig. 11 is a cross-sectional view of a through hole of a random pedestrian bridge under a coal mine in accordance with an embodiment of the present invention.

Reference numerals: 1. crossing a bridge; 11. a platform; 111. a first rod body; 112. a pull rod; 12. a blocking member; 121. a frame body; 122. a first strut; 13. a support net; 2. a ladder stand; 21. a second rod body; 211. a through hole; 212. a slideway; 22. a third rod body; 23. an armrest; 24. a second strut; 3. a support; 31. a first support bar; 32. a connecting seat; 321. a side plate; 3211. a mounting hole; 322. a connecting plate; 323. a fastener; 4. a connection assembly; 41. a first connector; 42. a second connector; 43. a first connection portion; 431. a protruding portion; 4311. a first jack; 432. a notch; 44. a second connecting portion; 441. an insert; 4411. perforating; 45. a first limiting member; 451. a first plunger; 452. a limit rod; 453. a first elastic member; 5. a support assembly; 51. a second support bar; 511. a slide block; 512. a limiting hole; 52. a fourth rod body; 521. a second jack; 5211. a channel; 5212. a pull rope; 53. a second limiting piece; 531. a second plunger; 532. a second elastic member; 6. and a conveyor.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

As shown in fig. 1 to 11, the underground coal mine random pedestrian bridge comprises a bridge 1, a ladder stand 2 and a supporting piece 3. The bridge 1 is adapted to be arranged above the conveyor 6 and to extend in a first direction, which is orthogonal to the direction of extension of the conveyor 6.

The cat ladder 2 is two, and two cat ladders 2 are established respectively at the both ends of gap bridge 1, and the one end of cat ladder 2 (the upper end of cat ladder 2 shown in fig. 1) links to each other with the one end of gap bridge 1 rotatably, and the other end of cat ladder 2 (the lower extreme of cat ladder 2 shown in fig. 1) downwardly extending just inclines towards the direction of keeping away from conveyer 6. Specifically, the lower ends of the two ladders 2 are inclined in directions away from each other.

The plurality of supporting pieces 3 are divided into two groups, the two groups of supporting pieces 3 are arranged at intervals along the first direction, each group of supporting pieces 3 comprises a plurality of supporting pieces 3, the plurality of supporting pieces 3 in each group of supporting pieces 3 are arranged at intervals along the extending direction of the conveyor 6, one end (the lower end of the supporting piece 3 shown in fig. 1) of the supporting piece 3 is connected with the conveyor 6, and the other end (the upper end of the supporting piece 3 shown in fig. 1) of the supporting piece 3 is connected with the bottom surface of the bridge 1. In particular, the arrangement of the plurality of supports 3 makes the bridge 1 firmly mounted on the conveyor 6.

According to the underground coal mine random type pedestrian bridge passing method, the bridge passing 1 is fixedly arranged on the conveyor 6 through the supporting piece 3, so that the bridge passing 1 can move along with the movement of the conveyor 6, manual moving of the bridge passing 1 is avoided, labor intensity of operators is relieved, the operation flow is simplified, the pedestrian bridge passing is more convenient and rapid to use, and the underground coal mine random type pedestrian bridge passing method is simple in structure, reasonable in design, simple and convenient to install and strong in flexibility.

In some embodiments, the underground coal mine random pedestrian bridge further comprises a connecting assembly 4, and the connecting assembly 4 is used for connecting the bridge 1 and the ladder stand 2. The connection assembly 4 includes a first connection member 41, a second connection member 42, a first connection portion 43, and a second connection portion 44. One end of the first connecting member 41 is connected to the bridge 1, and the other end of the first connecting member 41 extends in a first direction toward a direction away from the bridge 1. One end of the second link 42 is connected to the ladder 2, and the other end of the second link 42 extends in a direction away from the ladder 2 and is rotatably connected to the other end of the first link 41.

The outer circumferential profile of the first connection portion 43 is circular and provided at one end of the bridge 1, specifically, the first connection portion 43 is fixedly installed at the other end of the first connection member 41. The first connection portion 43 has a plurality of protruding portions 431 thereon, the plurality of protruding portions 431 being arranged at intervals around an outer circumferential surface of the first connection portion 43, and recesses 432 being formed between adjacent protruding portions 431.

The second connection part 44 is provided at one end of the ladder 2, and specifically, the second connection part 44 is fixedly installed at the other end of the second connection member 42. The second connection portion 44 has an insert 441, the insert 441 mating with the recess 432. Specifically, the insert 441 cooperates with the different recesses 432 such that the angle between the first connector 41 and the second connector 42 is different, thereby enabling the angle between the ladder 2 and the bridge 1 to be adjustable, and the operation is simple.

In some embodiments, the connection assembly 4 further includes a first limiter 45, the first limiter 45 including a first plug 451, a limiter 452, and a first resilient member 453. The stop lever 452 is disposed at one end of the first insert rod 451, the insert 441 has a through hole 4411, the other end of the first insert rod 451 penetrates through the through hole 4411, the first elastic member 453 is disposed on the first insert rod 451 and between the insert rod 441 and the stop lever 452, the protruding portion 431 has a first insertion hole 4311, and the other end of the first insert rod 451 is engaged with the first insertion hole 4311.

Specifically, after the insert 441 is inserted into the recess 432, the other end of the first insert rod 451 on the insert 441 is inserted into the first insertion hole 4311, so that the insert 441 is firmly installed in the recess 432 and is not easy to be separated, and the connection stability of the ladder stand 2 and the bridge 1 is ensured. When the insert 441 is disengaged from the recess 432, the stopper rod 452 is pulled to draw the other end of the first insert 451 out of the first insertion hole 4311, so that the insert 441 is easily disengaged from the recess 432. Thus, the arrangement of the limiting member makes the fitting of the insert 441 and the recess 432 stable, and the first limiting member 45 is simple in structure and easy to operate.

In some embodiments, the support 3 comprises a first support bar 31 and a connection seat 32. The connecting seat 32 comprises two side plates 321 and a connecting plate 322, the two side plates 321 are spaced along a first direction and are oppositely arranged, the side plates 321 are provided with mounting holes 3211, fasteners 323 are suitable for penetrating into the mounting holes 3211, the connecting plate 322 is arranged between the two side plates 321 and is connected with the two side plates 321, one end (the lower end of the first supporting rod 31 shown in fig. 1) of the first supporting rod 31 is connected with the connecting plate 322, the other end (the upper end of the first supporting rod 31 shown in fig. 1) of the first supporting rod 31 is connected with the bottom surface of the bridge 1, and at least part of the conveyor 6 is arranged between the two side plates 321 and is connected with the side plates 321 through the fasteners 323.

Specifically, the conveyor 6 is sandwiched between the two side plates 321, one end of the fastening member 323 sequentially passes through the mounting hole 3211 on one of the side plates 321, the conveyor 6 and the mounting hole 3211 on the other side plate 321, so that the side plates 321 and the conveyor 6 are fixedly connected, the connection mode is simple and effective, and the support member 3 is simple in structure, easy to manufacture and cost-saving.

In some embodiments, the bridge 1 comprises a platform 11, a stop 12 and a support net 13. The platform 11 extends in a first direction. The two blocking pieces 12 are arranged on the top surface of the platform 11 at intervals along the second direction, the second direction is orthogonal to the first direction, so that the platform 11 is protected, the installation performance of the bridge 1 is improved, and the safety of workers is ensured. The support net 13 is provided on the inner wall surface of the stopper 12 and the top surface of the platform 11.

Specifically, the supporting net 13 is a diamond net, and the supporting net 13 is welded on the top surface of the platform 11 and the inner wall surface of the baffle 12, so as to further protect the bridge 1 from safety.

In some embodiments, the platform 11 includes a first rod 111 and a pull rod 112. The first rod bodies 111 extend along the first direction, two first rod bodies 111 are arranged, and the two first rod bodies 111 are spaced along the second direction and are oppositely arranged. The tie rods 112 are disposed between the two first rod bodies 111 and extend along the second direction, the tie rods 112 are used for connecting the two first rod bodies 111, the tie rods 112 are plural, the tie rods 112 are arranged at intervals along the first direction, and at least part of the support net 13 is laid on the tie rods 112. Specifically, the platform 11 has a simple structure, is easy to manufacture, and saves cost.

In some embodiments, the flight 12 includes a frame 121 and a first strut 122. The frame body 121 is rectangular and extends along the first direction, one side edge of the frame body 121 is connected with the first rod body 111, and two ends of the frame body 121 are protruded out of the supporting net 13, so that a worker can conveniently grasp the end part of the frame body 121 when the worker goes up the platform 11 from the ladder 2. The first struts 122 are disposed on the frame 121 and extend in an up-down direction, the up-down direction is orthogonal to the first direction, the first struts 122 are plural, and the plural first struts 122 are arranged at intervals along the first direction to strengthen the structural strength of the frame 121.

In some embodiments, ladder 2 includes a second rod 21 and a third rod 22. The two second rod bodies 21 are arranged at intervals and opposite to each other along the second direction, one end of the second rod body 21 (the upper end of the second rod body 21 shown in fig. 1) is connected with one end of the platform 11, and the other end of the second rod body 21 (the lower end of the second rod body 21 shown in fig. 1) extends downwards and is inclined towards a direction away from the conveyor 6. The third rod bodies 22 are arranged between the two rod bodies, the third rod bodies 22 are a plurality of, and the plurality of third rod bodies 22 are arranged at intervals along the extending direction of the second rod body 21. Specifically, the ladder stand 2 is simple in structure, easy to manufacture and cost-saving.

In some embodiments, the ladder 2 further comprises handrails 23 and second struts 24. The number of the armrests 23 is two, the two armrests 23 are in one-to-one correspondence with the two second rod bodies 21, and the armrests 23 extend along the extending direction of the second rod bodies 21. The upper end and the handrail 23 fixed connection of second branch 24, the lower extreme and the second body of rod 21 fixed connection of second branch 24, second branch 24 are a plurality of, and a plurality of second branches 24 are arranged along the extending direction interval of handrail 23 to the security when providing the staff and walk on cat ladder 2.

Specifically, the rail 23 is curved adjacent to the upper end of the stopper 12 and bent toward the stopper 12 to allow a worker to grasp better from the upper platform 11 of the ladder 2.

In some embodiments, the colliery downhole random pedestrian bridge further comprises a support assembly 5. The support assembly 5 includes two second support rods 51, the two second support rods 51 are in one-to-one correspondence with the two second rod bodies 21, and the second support rods 51 are disposed in the second rod bodies 21 in a penetrating manner and are movable relative to the second rod bodies 21.

The second support bar 51 has a first position and a second position. When the second support rod 51 is located at the first position, the second support rod 51 is located in the second rod body 21. When the second supporting rod 51 is located at the second position, one end of the second supporting rod 51 extends out of the second rod 21 and abuts against the ground.

Specifically, when the second supporting rod 51 is located at the first position, the conveying member is convenient to drive the pedestrian to move across the bridge. When the conveyor 6 does not move, the second supporting piece 3 is moved from the first position to the second position when a worker needs to use a pedestrian to pass a bridge, the lower end of the second supporting piece 3 is propped against the ground, the second rod body 21 is supported, and the stability and safety of the worker when the worker uses the pedestrian to pass the bridge are ensured.

In some embodiments, the other end of the second rod 21 is provided with a through hole 211, the through hole 211 extends along the extending direction of the second rod 21, a slide 212 is provided on the inner wall surface of the through hole 211, the slide 212 extends along the extending direction of the through hole 211, the slide 212 is not communicated with the other end of the second rod 21, the other end of the second support rod 51 is provided with a sliding block 511, and the sliding block 511 is slidably mounted in the slide 212.

Specifically, the lower end of the second rod body 21 is provided with a through hole 211, and the through hole 211 extends from the lower end of the second rod body 21 in the extending direction of the second rod body 21. The lower end of the slideway 212 is not communicated with the lower end of the through hole 211, so that the sliding block 511 at the upper end of the second supporting rod 51 is not easy to separate from the slideway 212, thereby ensuring that the second supporting rod 51 is not easy to separate from the through hole 211.

In some embodiments, the support assembly 5 further comprises a fourth rod 52 and a second stop 53. The fourth rod 52 is disposed between the two second rods 21 and adjacent to the other end of the second rod 21. The number of the second limiting pieces 53 is two, one second limiting piece 53 is arranged at one end of the fourth rod body 52 and can be inserted into the through hole 211 on one second rod body 21, and the other second limiting piece 53 is arranged at the other end of the fourth rod body 52 and can be inserted into the through hole 211 on the other second rod body 21.

When the second supporting rod 51 is located at the first position, the second limiting rod 452 is inserted into the second supporting rod 51 to limit the second supporting rod 51, so that the second supporting rod 51 is not easy to move from the first position to the second position. When the second supporting rod 51 is located at the second position, the second limiting member 53 is inserted into the through hole 211 and located above the other end of the second supporting rod 51, so that when the second supporting rod 51 supports the second rod 21, the second rod 21 is not easy to move from the second position to the first position.

Specifically, the second stopper 53 includes a second plunger 531 and a second elastic member 532. The end of the fourth rod body 52 has a second insertion hole 521, the second insertion hole 521 extends along the extending direction of the fourth rod body 52, the second insertion hole 521 communicates with the through hole 211, and the second insertion rod 531 is inserted into the second insertion hole 521 and is movable relative to the fourth rod body 52. One end of the second elastic member 532 is connected to one end of the second insertion rod 531 penetrating into the second insertion hole 521, and the other end of the second elastic member 532 is connected to the bottom surface of the second insertion hole 521.

The bottom surface of the second insertion hole 521 has a passage 5211, one end of the passage 5211 communicates with the second insertion hole 521, and the other end of the passage 5211 extends to the outer wall surface of the fourth rod body 52. A pull rope 5212 is arranged in the channel 5211, one end of the pull rope 5212 is connected with one end of the second inserting rod 531, and the other end of the pull rope 5212 is positioned outside the fourth rod body 52.

The second supporting rod 51 is provided with a limiting hole 512, when the second supporting rod 51 is located at the first position, the other end of the second inserting rod 531 is inserted into the limiting hole 512 to limit the second supporting rod 51, so that the second supporting rod 51 is located in the second rod body 21 and is not easy to move from the first position to the second position. Pulling the pull rope 5212 to move the second insert rod 531 towards the second insertion hole 521, the other end of the second insert rod 531 is separated from the limiting hole 512, the second support rod 51 moves downwards to the second position under the action of self gravity, the pull rope 5212 is released, the second insert rod 531 is inserted into the through hole 211 under the action of the second elastic piece 532, at this time, the second insert rod 531 is located above the upper end of the second support rod 51 to limit the second support rod 51, and when the second support rod 51 supports the second rod 21, the second rod 21 is not easy to move from the second position to the first position.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the invention.

Claims (10)

1. A coal mine underground random pedestrian bridge, comprising:

-a bridge (1), said bridge (1) being adapted to be arranged above a conveyor (6), said bridge (1) extending in a first direction;

The two crawling ladders (2) are respectively arranged at two ends of the gap bridge (1), one end of the crawling ladder (2) is rotatably connected with one end of the gap bridge (1), and the other end of the crawling ladder (2) extends downwards and inclines towards a direction away from the conveyor (6);

Support piece (3), support piece (3) are a plurality of, and a plurality of support piece (3) divide into two sets of, and two sets of support piece (3) are followed first direction interval arrangement, every group support piece (3) include a plurality of support piece (3), every group a plurality of in support piece (3) are followed the extending direction interval arrangement of conveyer (6), one end of support piece (3) with conveyer (6) link to each other, the other end of support piece (3) with the bottom surface of gap bridge (1) links to each other.

2. A downhole random pedestrian bridge according to claim 1, further comprising a connection assembly (4), the connection assembly (4) being for connecting the bridge (1) and the ladder (2), the connection assembly (4) comprising:

A first connecting portion (43), wherein the outer peripheral outline of the first connecting portion (43) is circular and is arranged at one end of the gap bridge (1), the first connecting portion (43) is provided with a plurality of protruding portions (431), the protruding portions (431) are arranged at intervals around the outer peripheral surface of the first connecting portion (43), and a notch (432) is formed between every two adjacent protruding portions (431);

The second connecting part (44), the second connecting part (44) is arranged at one end of the cat ladder (2), the second connecting part (44) is provided with an insert (441), and the insert (441) is matched with the notch (432).

3. The underground coal mine random pedestrian bridge of claim 2, wherein the connecting assembly (4) further comprises a first limiting piece (45), the first limiting piece (45) comprises a first inserting rod (451), a limiting rod (452) and a first elastic piece (453), the limiting rod (452) is arranged at one end of the first inserting rod (451), the inserting piece (441) is provided with a through hole (4411), the other end of the first inserting rod (451) penetrates into the through hole (4411), the first elastic piece (453) is arranged on the first inserting rod (451) and located between the inserting piece (441) and the limiting rod (452), the protruding portion (431) is provided with a first inserting hole (4311), and the other end of the first inserting rod (451) is matched with the first inserting hole (4311).

4. The underground coal mine random pedestrian bridge according to claim 1, wherein the supporting piece (3) comprises a first supporting rod (31) and a connecting seat (32), the connecting seat (32) comprises two side plates (321) and a connecting plate (322), the two side plates (321) are spaced along the first direction and are oppositely arranged, the side plates (321) are provided with mounting holes (3211), the mounting holes (3211) are internally suitable for penetrating fasteners (323), the connecting plate (322) is arranged between the two side plates (321) and is connected with the two side plates (321), one end of the first supporting rod (31) is connected with the connecting plate (322), the other end of the first supporting rod (31) is connected with the bottom surface of the bridge (1), and at least part of the conveyor (6) is arranged between the two side plates (321) and is connected with the side plates (321) through the fasteners (323).

5. A coal mine downhole random pedestrian bridge according to claim 1, wherein the bridge (1) comprises:

-a platform (11), the platform (11) extending in a first direction;

the number of the baffles (12) is two, the two baffles (12) are arranged on the top surface of the platform (11) at intervals and oppositely along a second direction, and the second direction is orthogonal to the first direction;

And the supporting net (13) is arranged on the inner wall surface of the baffle (12) and the top surface of the platform (11).

6. A downhole random pedestrian bridge according to claim 5, wherein the platform (11) comprises:

The first rod bodies (111), wherein the first rod bodies (111) extend along a first direction, two first rod bodies (111) are arranged at intervals and oppositely along the second direction;

The pull rods (112) are arranged between the two first rod bodies (111) and extend along the second direction, the pull rods (112) are used for connecting the two first rod bodies (111), the pull rods (112) are multiple, the pull rods (112) are arranged at intervals along the first direction, and at least part of the support net (13) is paved on the pull rods (112).

7. A downhole random pedestrian bridge according to claim 5, wherein the ladder (2) comprises:

The two second rod bodies (21) are arranged at intervals and are opposite to each other along the second direction, one end of each second rod body (21) is connected with one end of the platform (11), and the other end of each second rod body (21) extends downwards and inclines towards a direction away from the conveyor (6);

The third rod bodies (22) are arranged between the two rod bodies, the number of the third rod bodies (22) is multiple, and the multiple third rod bodies (22) are arranged at intervals along the extending direction of the second rod body (21).

8. The underground coal mine random pedestrian bridge of claim 7, further comprising a support assembly (5), wherein the support assembly (5) comprises two second support rods (51), the two second support rods (51) are in one-to-one correspondence with the two second rod bodies (21), the second support rods (51) are arranged in the second rod bodies (21) in a penetrating way and are movable relative to the second rod bodies (21), the second support rods (51) have a first position and a second position,

When the second supporting rod (51) is located at the first position, the second supporting rod (51) is located in the second rod body (21), and when the second supporting rod (51) is located at the second position, one end of the second supporting rod (51) extends out of the second rod body (21) and abuts against the ground.

9. The underground coal mine random pedestrian bridge according to claim 8, wherein a through hole (211) is formed in the other end of the second rod body (21), the through hole (211) extends along the extending direction of the second rod body (21), a slide way (212) is formed in the inner wall surface of the through hole (211), the slide way (212) extends along the extending direction of the through hole (211), the slide way (212) is not communicated with the other end of the second rod body (21), a sliding block (511) is arranged at the other end of the second supporting rod (51), and the sliding block (511) is slidably mounted in the slide way (212).

10. A downhole random pedestrian bridge according to claim 8, wherein the support assembly (5) further comprises:

a fourth rod body (52), wherein the fourth rod body (52) is arranged between the two second rod bodies (21) and is adjacent to the other end of the second rod bodies (21);

The two second limiting pieces (53), one second limiting piece (53) is arranged at one end of the fourth rod body (52) and can be inserted into the through hole (211) on one second rod body (21), the other second limiting piece (53) is arranged at the other end of the fourth rod body (52) and can be inserted into the through hole (211) on the other second rod body (21),

When the second supporting rod (51) is located at the first position, the second limiting rod (452) is inserted into the second supporting rod (51), and when the second supporting rod (51) is located at the second position, the second limiting piece (53) is inserted into the through hole (211) and located above the other end of the second supporting rod (51).