CN211151413U

CN211151413U - Mining cable protection device

Info

Publication number: CN211151413U
Application number: CN201922097284.1U
Authority: CN
Inventors: 郝新春; 马雪刚
Original assignee: Shanxi Jianmo Technology Co ltd
Current assignee: Shanxi Jianmo Technology Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-07-31
Anticipated expiration: 2029-11-29

Abstract

The utility model discloses a mining cable protection device relates to cable protection technical field, including installing frame and cable conductor, the bolt hole has been seted up to the diapire of installing frame, the inside threaded connection of bolt hole has fastening bolt, the cable conductor includes the bellows, the inside fixedly connected with protection network of bellows. The utility model discloses a set up the installing frame, can utilize the installation double-screw bolt at installing frame top to fix the installing frame at the top of mine passageway, make the position of cable conductor installation keep away from the workman, avoid the workman to cause the accidental injury to the cable conductor, reach the purpose of better protection cable conductor, through setting up the bellows, can protect the outer wall of cable conductor, the insulating layer can reduce the outside temperature of cable conductor and to the influence of electric conductor, avoid the electric conductor to make the power transmission change because external environment changes, and the shielding layer can avoid the problem of the electric field intensity increase that arouses because of the electric conductor surface is unsmooth, reach the purpose of better protection to the cable conductor.

Description

Mining cable protection device

Technical Field

The utility model relates to a cable protection technical field specifically is a mining cable protection device.

Background

Coal mines are areas where humans mine coal resources in coal-rich mining areas, and are generally divided into underground coal mines and opencast coal mines. When the coal seam is far from the ground surface, a tunnel is usually dug to the underground, so that the coal is a mineworker coal mine. When the coal seam is very close to the earth surface, the coal is generally excavated by directly stripping the earth surface, which is an open pit coal mine. The vast majority of coal mines in China belong to underground coal mines. Coal mines encompass a large area above ground and below ground as well as associated facilities. Coal mines are reasonable spaces excavated by humans when excavating geological formations rich in coal and generally include roadways, wells, and mining surfaces, among others. Coal is the most predominant solid fuel, one of the flammable organic rocks. The carbon content of the coal is generally 46-97%, and the coal is brown to black and has dull to metallic luster. According to the difference of coalification degrees, coal can be divided into four types of peat, lignite, bituminous coal and anthracite, electrical appliances are inevitably needed in coal mines, the electric quantity needed by high-power electrical appliances is very large, general electric wires cannot meet the requirement of mine electricity, special cables are needed for power transportation, cables are usually cables similar to ropes formed by twisting a plurality of or a plurality of groups of wires, each group of wires are mutually insulated and are usually twisted around a center, a highly-insulated covering layer is wrapped outside the whole cable, the electric wires and the cables are frequently used for power and communication transmission, due to the special environment in a mine, a plurality of sharp stones are arranged in the mine, if the cables in the mine cannot be protected, the underground cables can be easily damaged, due to the fact that the power of the electric energy transmission of the cables is very large, after the problems of peeling, uncovering and the like of the cables, the life of underground workers can be seriously threatened, in order to avoid the danger caused by the damage of the underground cable, the underground cable is protected by certain measures to avoid the damage of the underground cable.

The utility model discloses a mine cable protection device that discloses in chinese utility model patent application publication specification CN208939500U, including hinge, holding tank, the flexible connector and lock joint tooth, though this utility model has certain guard action to the cable, this utility model can not avoid the outside of cable to receive the injury, because the cable is longer, if the cable is placed the position improper, the mine workman very probably causes the accidental injury to the cable to the insulating layer of current cable generally adopts rubber, and this kind of insulating layer not only is unfavorable for the heat dissipation, still burns very easily when meetting open fire, is unfavorable for using widely.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a mining cable protection device has solved the problem of proposing in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the cable comprises an installation frame and a cable conductor, wherein a bolt hole is formed in the bottom wall of the installation frame, a fastening bolt is connected to the inner thread of the bolt hole and penetrates through the bottom wall of the installation frame, a top connecting column is fixedly connected to the inner top wall of the installation frame, clamping holes are formed in the top of the fastening bolt and the bottom of the top connecting column, a top clamping block is movably connected to the bottom of the top connecting column through the clamping holes, a bottom clamping block is movably connected to the top of the fastening bolt through the fastening bolt, the top of the cable conductor is fixedly connected with the top clamping block, the bottom of the cable conductor is fixedly connected with the bottom clamping block, the cable conductor comprises a corrugated pipe, a protective net is fixedly connected to the inner part of the corrugated pipe, a thermal insulation layer is fixedly connected to the inner part of the protective net, wrapping cloth is fixedly connected, the silica gel is characterized in that a shielding layer is arranged inside the silica gel, an insulating layer is fixedly connected inside the shielding layer, and an electric conductor is fixedly connected inside the insulating layer.

Optionally, the bottom clamping block comprises a rotary column, a clamping plate is fixedly connected to the top of the rotary column, an anti-slip pad is fixedly connected to the top of the clamping plate, an annular groove is formed in the middle of the rotary column, and the annular groove is matched with the clamping hole.

Optionally, the cross sections of the non-slip mat and the clamping plate are both circular arcs, and the width of the non-slip mat is smaller than that of the clamping plate.

Optionally, the bottom clamping block and the top clamping block are identical in structure and size, and the top clamping block and the bottom clamping block are symmetrical about a cable line.

Optionally, the shielding layers are distributed in an annular array in the silica gel, and the shielding layers, the insulating layers and the electric conductors are equal in number and matched with each other.

Optionally, the top of the mounting frame is fixedly connected with a mounting stud, the diameter of the mounting stud is equal to the diameter of the threaded column of the fastening bolt, and the diameter of the mounting stud is equal to the diameter of the top connecting column.

Three beneficial effects

The utility model provides a mining cable protection device possesses following beneficial effect:

1. this mining cable protection device, through setting up the installing frame, can utilize the installation double-screw bolt at installing frame top to fix the installing frame at mine access's top, make the position of cable conductor installation keep away from the workman, avoid the workman to cause the accidental injury to the cable conductor, and the tight piece cooperation of the tight piece of bottom clamp and the tight piece cooperation of top clamp not only can press from both sides the cable conductor in the inside of installing frame, can also make the cable conductor rotate in the inside of installing frame, make the trend of cable conductor not restricted by the installing frame, reach the purpose of better protection cable conductor.

2. This mining cable protection device, through setting up the bellows, can enough increase the amount of deflection of cable conductor, can protect the outer wall of cable conductor again, insulating layer and protection network can reduce the outside temperature of cable conductor and to the influence of electric conductor, avoid the electric conductor to make the power transmission change because external environment changes to the problem that the electric field strength that the shielding layer can avoid arousing because of the electric conductor surface is not smooth reaches the purpose to the better protection of cable conductor.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the cable of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the bottom clamping block of the present invention;

fig. 4 is a schematic view of the three-dimensional structure of the bottom clamping block of the present invention.

In the figure: 1. fastening a bolt; 2. installing a frame; 3. a bottom clamping block; 301. a non-slip mat; 302. a clamping plate; 303. a spin column; 304. an annular groove; 4. a cable wire; 401. a bellows; 402. a protective net; 403. a thermal insulation layer; 404. wrapping wire cloth; 405. silica gel; 406. a shielding layer; 407. an insulating layer; 408. an electrical conductor; 5. a top clamping block; 6. a top connecting column; 7. mounting a stud; 8. a clamping hole; 9. bolt holes.

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 to 4, the present invention provides a technical solution: a mining cable protection device comprises an installation frame 2 and a cable 4, a bolt hole 9 is formed in the bottom wall of the installation frame 2, a fastening bolt 1 is connected to the inner thread of the bolt hole 9, the fastening bolt 1 penetrates through the bottom wall of the installation frame 2, a top connecting column 6 is fixedly connected to the inner top wall of the installation frame 2, an installation stud 7 is fixedly connected to the top of the installation frame 2, the diameter of the installation stud 7 is equal to that of the fastening bolt 1, the diameter of the installation stud 7 is equal to that of the top connecting column 6, clamping holes 8 are formed in the top of the fastening bolt 1 and the bottom of the top connecting column 6, a top clamping block 5 is movably connected to the bottom of the top connecting column 6 through the clamping holes 8, a bottom clamping block 3 is movably connected to the top of the fastening bolt 1 through the fastening bolt 1, the bottom clamping block 3 comprises a rotating column 303, and a, the top of the clamping plate 302 is fixedly connected with an anti-slip pad 301, the middle part of the rotating column 303 is provided with an annular groove 304, the annular groove 304 is matched with the clamping hole 8, the cross sections of the anti-slip pad 301 and the clamping plate 302 are both circular arcs, the width of the anti-slip pad 301 is smaller than that of the clamping plate 302, the top of the cable 4 is fixedly connected with the top clamping block 5, the bottom of the cable 4 is fixedly connected with the bottom clamping block 3, the bottom clamping block 3 and the top clamping block 5 are identical in structure and size, the top clamping block 5 and the bottom clamping block 3 are symmetrical relative to the cable 4, by arranging the installation frame 2, the installation frame 2 can be fixed at the top of the mine passage by using the installation studs 7 at the top of the installation frame 2, so that the installation position of the cable 4 is far away from workers, the workers are avoided from causing accidental injury to the cable 4, and the bottom clamping block 3 and the, the cable 4 can also rotate in the installation frame 2, the trend of the cable 4 is not limited by the installation frame 2, and the purpose of better protecting the cable 4 is achieved, the cable 4 comprises a corrugated pipe 401, a protective net 402 is fixedly connected in the corrugated pipe 401, a heat insulation layer 403 is fixedly connected in the protective net 402, a wrapping cloth 404 is fixedly connected in the heat insulation layer 403, a silica gel 405 is fixedly connected in the wrapping cloth 404, a shielding layer 406 is arranged in the silica gel 405, an insulation layer 407 is fixedly connected in the shielding layer 406, a conductor 408 is fixedly connected in the insulation layer 407, a plurality of shielding layers 406 are arranged in the silica gel 405 in an annular array, the number of the shielding layers 406, the insulation layers 407 and the conductor 408 is equal and matched, by arranging the corrugated pipe 401, the flexibility of the cable 4 can be increased, and the outer wall of the cable 4 can be protected, the heat insulation layer 403 and the protective net 402 can reduce the influence of the temperature outside the cable 4 on the conductor 408, avoid the change of the power transmission amount of the conductor 408 due to the change of the external environment, and the shielding layer 406 can avoid the problem of the increase of the electric field strength caused by the non-smoothness of the surface of the conductor 408, thereby achieving the purpose of better protecting the cable 4.

During the use, at first with the installation double-screw bolt 7 at installing frame 2 top and the roof fixed connection of mine passageway, make the firm top of installing at mine passageway of installing frame 2, then pass cable conductor 4 between bottom clamp tight piece 3 and the top clamp tight piece 5, tighten fastening bolt 1 afterwards, make fastening bolt 1 drive column spinner 303 rise together, because column spinner 303's middle part is equipped with ring channel 304, and the top of slipmat 301 can form spacing relation with cable conductor 4, make fastening bolt 1 can rotate relatively between ring channel 304 and joint hole 8 when rotatory rises, so fastening bolt 1 can not rotate when column spinner 303 rises, can make bottom clamp tight piece 3 and top clamp tight piece 5 press from both sides cable conductor 4 tightly, can be with the firm roof of installing at mine passageway of cable conductor 4, be convenient for protect cable conductor 4.

In conclusion, the device can utilize the mounting stud 7 at the top of the mounting frame 2 to fix the mounting frame 2 at the top of the mine passage by arranging the mounting frame 2, so that the mounting position of the cable 4 is far away from workers, and the cable 4 is prevented from being accidentally injured by the workers, and the bottom clamping block 3 and the top clamping block 5 are matched to clamp the cable 4 in the mounting frame 2 and rotate the cable 4 in the mounting frame 2, so that the trend of the cable 4 is not limited by the mounting frame 2, and the cable 4 is better protected, by arranging the corrugated pipe 403, the flexibility of the cable 4 can be increased, the outer wall of the cable 4 can be protected, the influence of the temperature outside the cable 4 on the conductor 408 can be reduced by the heat insulation layer and the protective net 402, the change of the power transmission amount of the conductor 408 due to the change of the external environment can be avoided, and the problem that the electric field intensity is increased due to the unsmooth surface of the conductor 408, the purpose of better protecting the cable 4 is achieved.

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 mining cable protection device, includes installing frame (2) and cable conductor (4), its characterized in that: the cable comprises an installation frame (2), and is characterized in that a bolt hole (9) is formed in the bottom wall of the installation frame (2), a fastening bolt (1) is connected to the inner thread of the bolt hole (9), the fastening bolt (1) penetrates through the bottom wall of the installation frame (2), a top connecting column (6) is fixedly connected to the inner top wall of the installation frame (2), clamping holes (8) are formed in the top of the fastening bolt (1) and the bottom of the top connecting column (6), a top clamping block (5) is movably connected to the bottom of the top connecting column (6) through the clamping holes (8), a bottom clamping block (3) is movably connected to the top of the fastening bolt (1) through the fastening bolt (1), the top of a cable (4) is fixedly connected with the top clamping block (5), the bottom of the cable (4) is fixedly connected with the bottom clamping block (3), and the cable (4) comprises, the inside fixedly connected with protection network (402) of bellows (401), the inside fixedly connected with insulating layer (403) of protection network (402), the inside fixedly connected with envelope cloth (404) of insulating layer (403), the inside fixedly connected with silica gel (405) of envelope cloth (404), the inside of silica gel (405) is equipped with shielding layer (406), the inside fixedly connected with insulating layer (407) of shielding layer (406), the inside fixedly connected with electric conductor (408) of insulating layer (407).

2. A mining cable protection device according to claim 1, characterised in that: the bottom clamping block (3) comprises a rotating column (303), the top of the rotating column (303) is fixedly connected with a clamping plate (302), the top of the clamping plate (302) is fixedly connected with an anti-slip pad (301), the middle of the rotating column (303) is provided with an annular groove (304), and the annular groove (304) is matched with the clamping hole (8).

3. A mining cable protection device according to claim 2, characterised in that: the cross sections of the antiskid pad (301) and the clamping plate (302) are circular arcs, and the width of the antiskid pad (301) is smaller than that of the clamping plate (302).

4. A mining cable protection device according to claim 1, characterised in that: the bottom clamping block (3) and the top clamping block (5) are identical in structure and size, and the top clamping block (5) and the bottom clamping block (3) are symmetrical relative to the cable (4).

5. A mining cable protection device according to claim 1, characterised in that: the shielding layers (406) are distributed in a ring array in the silica gel (405), and the shielding layers (406), the insulating layers (407) and the conductors (408) are equal in number and are matched with each other.

6. A mining cable protection device according to claim 1, characterised in that: the top fixedly connected with of installing frame (2) installs double-screw bolt (7), the diameter of installation double-screw bolt (7) equals the screw thread post diameter of fastening bolt (1), the diameter of installation double-screw bolt (7) equals the diameter of top spliced pole (6).