CN215772159U

CN215772159U - Movable power distribution cabinet

Info

Publication number: CN215772159U
Application number: CN202121166470.7U
Authority: CN
Inventors: 姜瑶
Original assignee: Hebei Hongxing Electrical Equipment Co ltd
Current assignee: Hebei Hongxing Electrical Equipment Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2022-02-08
Anticipated expiration: 2031-05-28

Abstract

The utility model discloses a movable power distribution cabinet, which comprises a vertically-arranged power distribution cabinet body and a horizontally-arranged hollow seat, wherein a groove is formed in the bottom end of the hollow seat, horizontally-arranged pressure sensors are embedded in two sides of the bottom end of the inner wall of the groove, the power distribution cabinet body is connected with the hollow seat in an inserting mode, the bottom end of the power distribution cabinet body is contacted with the bottom end of the pressure sensors, a buffer assembly used for supporting the power distribution cabinet body is arranged in the hollow seat, a first partition plate and a second partition plate which are vertically arranged are fixedly connected to the inner wall of one side, opposite to the power distribution cabinet body, of the second partition plate, an air guide assembly is arranged on one side, close to the power distribution cabinet body, of the second partition plate, and the air guide assembly and the buffer assembly form transmission fit. According to the utility model, the heat dissipation assembly is arranged to cool the interior of the power distribution cabinet, so that the protection effect is achieved, the practicability of the power distribution cabinet is also improved, the dust shell is arranged in a matched manner, dust is isolated, the interior of the power distribution cabinet is ensured to be clean, and a good working environment is realized.

Description

Movable power distribution cabinet

Technical Field

The utility model relates to the technical field of power distribution cabinets, in particular to a movable power distribution cabinet.

Background

The power distribution cabinet (box) is a final-stage device of a power distribution system, is a general name of a motor control center and is used in occasions with dispersed loads and less loops; motor control centers are used in load concentration and loop-rich applications, where they distribute the power from a circuit of a higher level of distribution equipment to nearby loads, which provide protection, monitoring and control of the loads.

Present switch board, in the operation process, can produce a large amount of heats, make the inside intensification of switch board, can cause its inside part to damage for a long time, consequently, need the heat dissipation function to cool down the processing, contrast a switch board heat abstractor (CN 212412557U), switch board bottom is all located to exhaust fan and dust screen that will dispel the heat, adopt fixed installation, the inconvenient dismouting with the dust screen of the exhaust fan that dispels the heat of this structure, and with air direct contact, easily make the dust screen blockked up, cause the air current not to circulate, thereby influence radiating effect, for timely change and maintenance, a mobilizable switch board is now proposed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a movable power distribution cabinet.

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

a movable power distribution cabinet comprises a vertically-arranged power distribution cabinet body and a horizontally-arranged hollow seat, wherein a groove is formed in the bottom end of the hollow seat, a horizontally-arranged pressure sensor is embedded in two sides of the bottom end of the inner wall of the groove, the power distribution cabinet body is inserted into the hollow seat, the bottom end of the power distribution cabinet body is contacted with the bottom end of the pressure sensor, a buffer assembly used for supporting the power distribution cabinet body is arranged in the hollow seat, a first partition plate and a second partition plate which are vertically arranged are fixedly connected to the inner wall of the opposite side of the power distribution cabinet body respectively, an air guide assembly is arranged on one side, close to the power distribution cabinet body, of the second partition plate and is in transmission fit with the buffer assembly, sliding grooves are formed in two ends of one side, away from the second partition plate, of the first partition plate, positioning assemblies used for fixing a dustproof shell are arranged in the two sliding grooves, and a rectangular opening is formed in one side, close to the first partition plate, of the power distribution cabinet body, and a vertically placed dustproof shell is inserted in the rectangular opening, a heat dissipation assembly is arranged in the dustproof shell, and a plurality of heat dissipation holes distributed in a rectangular array are formed in one side, close to the dustproof shell, of the first partition plate.

Furthermore, four corners of the bottom end of the hollow seat are rotatably connected with vertically-arranged universal wheels.

Further, the switch board body is kept away from dust cover one side and is opened there is the bar mouth, and bar mouth inner wall one side articulates there is the fly leaf.

Further, the buffering subassembly includes the rubber gasbag that a plurality of fixed connection placed at hollow seat inner wall level, be the rectangular array distribution between the rubber gasbag, and the rubber gasbag keeps away from hollow seat one side and switch board body fixed connection, adjacent two the spiro union has the air duct that the level was placed between the rubber gasbag, and one of them rubber gasbag top spiro union has the relief valve.

Further, the air guide subassembly includes two spacing rings that the level was placed and the vertical gas charging tank of placing, two spacing ring one end and briquetting fixed connection, and two spacing ring other ends and switch board body inner wall fixed connection, the gas charging tank cup joints with two spacing rings respectively, and passes through the bolt fastening between gas charging tank and the spacing ring, the gas charging tank is kept away from second baffle one end spiro union and is had the outlet duct of level placement, and outlet duct one end passes the switch board body and buckle and extend to hollow seat in, the outlet duct bottom is rather than one of rubber gasbag top spiro union, and outlet duct inner wall spiro union has the check valve, the outlet duct has vertical miniature solenoid valve of placing near rubber gasbag one side concatenating.

Further, radiator unit includes a fan and two supports of vertical placing, both ends all with support fixed connection about the fan is close to first baffle, and two supports keep away from fan one end all with dust cover inner wall fixed connection.

Further, pressure sensor even has the controller, fan, miniature solenoid valve all link has the switch, and the switch even has the power cord.

Further, locating component includes fixed subassembly and supporting component, supporting component includes the card strip of vertical placing, the card strip is articulated on one side of being close to first baffle with the dust cover outer wall, and the welding has same slope to place the extension spring between dust cover and the card strip.

Further, fixed subassembly includes the briquetting of horizontal placement and a plurality of expanding spring of vertical placement, the briquetting top welds with the expanding spring bottom, and the expanding spring top welds with spout inner wall top.

Further, fixed subassembly includes the screw rod that the level was placed and the vertical disc of placing, screw rod one end is passed the switch board body and is pegged graft with the card strip, the disc is close to first baffle one side with switch board body outer wall and rotates and be connected, open threaded hole in the middle part of the disc, and the outer wall of screw rod and the inner wall threaded connection of screw hole, the hand (hold) that switch board body one side eccentric position department fixedly connected with level was placed are kept away from to the disc.

The utility model has the beneficial effects that:

1. through setting up radiator unit, cool down to the switch board is inside, play the guard action, also improved the practicality of switch board, the dustproof shell that the cooperation set up completely, and the clearance of guaranteeing the switch board is inside, realizes good operational environment, combines the universal wheel that sets up, and the removal transportation of the device of being convenient for uses manpower sparingly, improves work effect.

2. Through setting up supporting component, make things convenient for taking of dust cover, convenient to use, the flexibility is high, and the fixed subassembly that the cooperation set up plays good fixed action to the dust cover, also improves the stability of heat dissipation work.

3. Through setting up hollow seat, support the switch board, also play the guard action, the buffering subassembly that the cooperation set up realizes the secondary protection of switch board, improves the protection effect, the pressure sensor who combines to set up, judge whether the switch board sends out phenomenon such as askew falling, the real-time supervision of being convenient for, the normal operating of assurance work, the rethread sets up the air guide subassembly, when the switch board askew falls, expand gas to gasbag inside, improve buffering effect, reduce the probability of its damage.

Drawings

Fig. 1 is a schematic perspective view of a movable power distribution cabinet according to the present invention;

fig. 2 is a schematic diagram of a three-dimensional explosion structure of a movable heat dissipation assembly of a power distribution cabinet according to the present invention;

fig. 3 is a schematic view of a partial top view of the interior of a movable switch board solid hollow seat according to the present invention;

fig. 4 is a schematic plan sectional structural view of an embodiment 1 of a movable power distribution cabinet according to the present invention;

fig. 5 is a schematic view of a partially enlarged structure of an embodiment 1A of a movable power distribution cabinet according to the present invention;

fig. 6 is a schematic plan sectional structural view of an embodiment 2 of a movable power distribution cabinet according to the present invention;

fig. 7 is a schematic diagram of a partially enlarged structure of an embodiment 2B of a movable power distribution cabinet according to the present invention.

In the figure: 1. a power distribution cabinet body; 2. briquetting; 3. a tension spring; 4. a fan; 5. a dust-proof shell; 6. a support; 7. clamping the strip; 8. a tension spring; 9. a partition plate; 10. a rubber air bag; 11. a hollow seat; 12. a universal wheel; 13. a pressure sensor; 14. an air duct; 15. a miniature electromagnetic valve; 16. an air outlet pipe; 17. an inflation tank; 18. a limiting ring; 19. a screw; 20. a handle; 21. A disc; 22. a movable plate.

Detailed Description

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

Example 1

Referring to fig. 1-5, a movable power distribution cabinet comprises a vertically-arranged power distribution cabinet body 1 and a horizontally-arranged hollow seat 11, wherein a groove is formed in the bottom end of the hollow seat 11, a horizontally-arranged pressure sensor 13 is embedded in each of two sides of the bottom end of the inner wall of the groove, the power distribution cabinet body 1 is inserted into the hollow seat 11, the bottom end of the power distribution cabinet body 1 is contacted with the bottom end of the pressure sensor 13, a buffer assembly for supporting the power distribution cabinet body 1 is arranged in the hollow seat 11, a vertically-arranged first partition plate 9 and a vertically-arranged second partition plate 23 are fixedly connected to the inner wall of one side, opposite to the power distribution cabinet body 1, through bolts, an air guide assembly is arranged on one side, close to the power distribution cabinet body 1, of the second partition plate 23, the air guide assembly is in transmission fit with the buffer assembly, both ends of one side, far away from the second partition plate 23, of the first partition plate 9 are provided with slide grooves, and positioning assemblies for fixing a dustproof shell 5 are arranged in both slide grooves, one side of a power distribution cabinet body 1, which is close to a first partition plate 9, is provided with a rectangular opening, a vertically-placed dustproof shell 5 is inserted in the rectangular opening, a heat dissipation assembly is arranged in the dustproof shell 5, one side of the first partition plate 9, which is close to the dustproof shell 5, is provided with a plurality of heat dissipation holes distributed in a rectangular array, further, four corners at the bottom end of a hollow seat 11 are rotatably connected with vertically-placed universal wheels 12, one side of the power distribution cabinet body 1, which is far away from the dustproof shell 5, is provided with a strip-shaped opening, one side of the inner wall of the strip-shaped opening is hinged with a movable plate 22, in order to protect the power distribution cabinet body 1, a buffer assembly comprises a plurality of rubber air bags 10 which are horizontally placed and fixedly connected to the inner wall of the hollow seat 11 through bolts, the rubber air bags 10 are distributed in a rectangular array, one side of the rubber air bags 10, which is far away from the hollow seat 11, is fixedly connected with the power distribution cabinet body 1 through bolts, and horizontally-placed air guide tubes 14 are screwed between two adjacent rubber air bags 10, and the top of one of the rubber air bags 10 is connected with a pressure relief valve in a threaded manner, further, the air guide assembly comprises two horizontally arranged limiting rings 18 and a vertically arranged inflation tank 17, one end of each of the two limiting rings 18 is fixedly connected with the pressing block 2 through a bolt, the other end of each of the two limiting rings 18 is fixedly connected with the inner wall of the power distribution cabinet body 1 through a bolt, the inflation tank 17 is respectively sleeved with the two limiting rings 18, the inflation tank 17 is fixed with the limiting rings 18 through bolts, one end of the inflation tank 17, far away from the second partition plate 23, is connected with a horizontally arranged air outlet pipe 16 in a threaded manner, one end of the air outlet pipe 16 penetrates through the power distribution cabinet body 1 and extends into the hollow seat 11 in a bent manner, the bottom end of the air outlet pipe 16 is connected with the top of one of the rubber air bag 10 in a threaded manner, the inner wall of the air outlet pipe 16 is connected with a one-way valve in a threaded manner, one side, close to the rubber air bag 10, is connected with a vertically arranged miniature electromagnetic valve 15 in a series, through the hollow seat, the power distribution cabinet is supported, the protection effect is also achieved, the buffer assembly is arranged in a matched mode, secondary protection of the power distribution cabinet is achieved, the protection effect is improved, the pressure sensor is arranged in a combined mode, whether the power distribution cabinet is askew and falls or not is judged, real-time monitoring is convenient, normal operation of work is guaranteed, the air guide assembly is arranged again, when the power distribution cabinet is askew and falls, air is expanded into the air bag, the buffer effect is improved, the damage probability of the air bag is reduced, in order to cool and prevent dust in the power distribution cabinet body 1, the heat dissipation assembly comprises a fan 4 and two supports 6 which are vertically arranged, the upper end and the lower end, close to the first partition plate 9, of the fan 4 are fixedly connected with the supports 6 through bolts, one ends, far away from the fan 4, of the two supports 6 are fixedly connected with the inner wall of the dust-proof shell 5 through bolts, and further, the pressure sensor 13 is connected with a controller, the fan 4, The miniature electromagnetic valves 15 are all connected with switches, the switches are connected with power lines, the interior of the power distribution cabinet is cooled through the arrangement of the heat dissipation assembly, the protection effect is achieved, the practicability of the power distribution cabinet is also improved, the dustproof shell is arranged in a matched mode, dust is isolated, the interior of the power distribution cabinet is guaranteed to be clean, a good working environment is achieved, the universal wheels are arranged in a combined mode, the device is convenient to move and transport, manpower is saved, the working effect is improved, furthermore, the positioning assembly comprises a fixing assembly and a supporting assembly, the supporting assembly comprises a clamping strip 7 which is vertically arranged, the clamping strip 7 is hinged with the outer wall of the dustproof shell 5 close to one side of a first partition plate 9, the same obliquely-arranged tension spring 3 is welded between the dustproof shell 5 and the clamping strip 7, for rapidly disassembling and assembling the dustproof shell 5, the fixing assembly comprises a pressing block 2 which is horizontally arranged and a plurality of telescopic springs 8 which are vertically arranged, and the top ends of the pressing block 2 are welded with the bottom ends of the

telescopic springs

8, and 8 tops of the telescopic springs are welded with the top end of the inner wall of the sliding groove, the supporting assembly is arranged, the dustproof shell is convenient to take, the use is convenient, the flexibility is high, the fixing assembly is arranged in a matched mode, a good fixing effect is achieved on the dustproof shell, and the stability of the heat dissipation work is also improved.

The working principle of the embodiment is as follows: firstly, a dustproof shell 5 penetrates through a power distribution cabinet body 1, the dustproof shell 5 is convenient to take by arranging a tension spring 3 and a hinged clamping strip 7, when the dustproof shell 5 is moved to the right side to a sliding groove on the side wall of a first partition plate 9, a pressing block 2 is pushed, the dustproof shell 5 is fixedly clamped under the compression state of an expansion spring 8, then the power distribution cabinet body 1 is placed into a hollow seat 11, a micro electromagnetic valve 15 is switched on, gas in an inflation tank 17 is conveyed into an air bag 10 through an air outlet pipe 16, the air bag 10 is rapidly expanded under the matching of an air duct 14, when the gas is filled with a certain amount, the micro electromagnetic valve 15 is closed, the power distribution cabinet body 1 is not only clamped, but also has a protection effect, then the power distribution cabinet body 1 is pushed to a required position by utilizing a universal wheel 12, the movement is stopped, when the power distribution cabinet body 1 runs, a fan 4 is switched on, heat generated in the power distribution cabinet body 1 is blown out, under the cooperation of dustproof shell 5, not only keep apart the pollution of external dust, also can be with some slight dust discharge in the switch board body 1, guarantee good dustless environment, improve the practicality of device, also prolonged the life of spare part in the switch board body 1 to a certain extent, then, promote dustproof shell 5 and move to the left for card strip 7 breaks away from the spout, and the convenience of taking is convenient for clear away the dust in the switch board body 1, also can carry out subsequent maintenance to fan 4 and dustproof shell 5.

Example 2

Referring to fig. 1, 3, 6, 7, a mobilizable switch board, this embodiment is for embodiment 1, the main difference lies in this embodiment, fixed subassembly includes screw rod 19 and the vertical disc 21 of placing that the level was placed, screw rod 19 one end is passed switch board body 1 and is pegged graft with card strip 7, disc 21 is close to first baffle 9 one side rotation with switch board body 1 outer wall and is connected, disc 21 middle part is opened threaded hole, and the outer wall of screw rod 19 and the inner wall threaded connection of screw hole, disc 21 is kept away from switch board body 1 one side eccentric position department and is passed through the hand (hold) 20 that bolt fixedly connected with level was placed, the fixed subassembly of cooperation setting, play good fixed action to the dust-proof housing, also improve heat dissipation work's stability.

The working principle of the embodiment is as follows: firstly, under the action of a tension spring 3, a dustproof shell 5 rapidly penetrates through a power distribution cabinet body 1, a hinged clamping strip 7 is pushed into a sliding groove, a screw rod 19 is placed, a handle 20 is rotated, a disc 21 is rotated and is abutted against the surface of the power distribution cabinet body 1, the dustproof shell 5 is fixedly clamped, then the power distribution cabinet body 1 is placed into a hollow seat 11, a micro electromagnetic valve 15 is switched on, gas in an inflation tank 17 is conveyed into an air bag 10 through an air outlet pipe 16, the air bag 10 is rapidly expanded under the cooperation of an air guide pipe 14, when the gas is filled with a certain amount, the micro electromagnetic valve 15 is closed, the power distribution cabinet body 1 is clamped and also has a protection effect, then the universal wheel 12 is utilized to push the power distribution cabinet body 1 to a required position, the movement is stopped, when the power distribution cabinet body 1 runs, a fan 4 is switched on, heat generated in the power distribution cabinet body 1 is blown out, under the cooperation of dust-proof housing 5, not only keep apart the pollution of external dust, also can be with some slight dust discharge in the switch board body 1, guarantee good dustless environment, improve the practicality of device, the life of the spare part in the switch board body 1 has also been prolonged to a certain extent, then, the antiport hand (hold) 20, drive carousel 21 and rotate, and break away from screw rod 19, take out screw rod 19 again, move dust-proof housing 5 on a left side, make card strip 7 break away from the spout, conveniently take, be convenient for clear away the dust in the switch board body 1, also can carry out subsequent maintenance to fan 4 and dust-proof housing 5.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom end", "one end", "top end", "middle", "other end", "upper", "one side", "top end", "inner", "front", "center", "both ends", "first", "second", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present patent application, it is to be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be interpreted broadly, and may be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed, and the specific meaning of the terms in the patent will be understood by those skilled in the art according to the specific situation.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A movable power distribution cabinet comprises a vertically-arranged power distribution cabinet body (1) and a horizontally-arranged hollow seat (11), and is characterized in that a groove is formed in the bottom end of the hollow seat (11), both sides of the bottom end of the inner wall of the groove are embedded with horizontally-arranged pressure sensors (13), the power distribution cabinet body (1) is spliced with the hollow seat (11), the bottom end of the power distribution cabinet body (1) is contacted with the bottom ends of the pressure sensors (13), a buffer assembly used for supporting the power distribution cabinet body (1) is arranged in the hollow seat (11), the inner wall of one side, opposite to the power distribution cabinet body (1), of the power distribution cabinet body is fixedly connected with a vertically-arranged first partition plate (9) and a vertically-arranged second partition plate (23), an air guide assembly is arranged on one side, close to the power distribution cabinet body (1), and forms transmission fit with the buffer assembly, both ends of one side, far away from the second partition plate (23), of the first partition plate (9) are provided with chutes, and all be equipped with the locating component who is used for fixed dust cover (5) in two spouts, switch board body (1) is close to first baffle (9) one side and opens there is the rectangle mouth, and inserts in the rectangle mouth and be equipped with vertical dust cover (5) of placing, be equipped with radiator unit in dust cover (5), first baffle (9) are close to dust cover (5) one side and open and have a plurality of louvre that is the rectangular array and distributes.

2. Movable power distribution cabinet according to claim 1, characterized in that vertically placed universal wheels (12) are rotatably connected to four corners of the bottom end of the hollow base (11).

3. The movable power distribution cabinet according to claim 2, wherein a strip-shaped opening is formed in one side of the power distribution cabinet body (1) away from the dustproof shell (5), and a movable plate (22) is hinged to one side of the inner wall of the strip-shaped opening.

4. The movable power distribution cabinet according to claim 3, wherein the buffering assembly comprises a plurality of rubber air bags (10) which are fixedly connected to the inner wall of the hollow seat (11) and horizontally arranged, the rubber air bags (10) are distributed in a rectangular array mode, one side, away from the hollow seat (11), of each rubber air bag (10) is fixedly connected with the power distribution cabinet body (1), air guide pipes (14) which are horizontally arranged are connected between every two adjacent rubber air bags (10) in a threaded mode, and a pressure release valve is connected to the top end of one rubber air bag (10) in a threaded mode.

5. A movable power distribution cabinet according to claim 4, wherein the air guide assembly comprises two horizontally arranged limiting rings (18) and a vertically arranged inflation tank (17), one end of each of the two limiting rings (18) is fixedly connected with the pressing block (2), the other end of each of the two limiting rings (18) is fixedly connected with the inner wall of the power distribution cabinet body (1), the inflation tank (17) is respectively sleeved with the two limiting rings (18), the inflation tank (17) and the limiting rings (18) are fixed through bolts, one end, far away from the second partition plate (23), of the inflation tank (17) is screwed with a horizontally arranged air outlet pipe (16), one end of the air outlet pipe (16) penetrates through the power distribution cabinet body (1) to be bent and extended into the hollow seat (11), the bottom end of the air outlet pipe (16) is screwed with the top end of one of the rubber air bag (10), and the inner wall of the air outlet pipe (16) is screwed with a one-way valve, one side of the air outlet pipe (16) close to the rubber air bag (10) is connected in series with a vertically arranged miniature electromagnetic valve (15).

6. A movable power distribution cabinet according to claim 5, wherein the heat dissipation assembly comprises a fan (4) and two supports (6) which are vertically arranged, the upper end and the lower end of the fan (4) close to the first partition plate (9) are fixedly connected with the supports (6), and one ends of the two supports (6) far away from the fan (4) are fixedly connected with the inner wall of the dustproof shell (5).

7. The movable power distribution cabinet according to claim 6, wherein the pressure sensor (13) is connected with a controller, the fan (4) and the micro electromagnetic valve (15) are connected with a switch, and the switch is connected with a power line.

8. The movable power distribution cabinet according to claim 7, wherein the positioning assembly comprises a fixing assembly and a supporting assembly, the supporting assembly comprises a vertically-arranged clamping strip (7), the clamping strip (7) is hinged to one side, close to the first partition plate (9), of the outer wall of the dustproof shell (5), and the same obliquely-arranged tension spring (3) is welded between the dustproof shell (5) and the clamping strip (7).

9. The movable power distribution cabinet according to claim 8, wherein the fixed assembly comprises a pressing block (2) horizontally arranged and a plurality of extension springs (8) vertically arranged, the top end of the pressing block (2) is welded with the bottom ends of the extension springs (8), and the top ends of the extension springs (8) are welded with the top end of the inner wall of the sliding chute.

10. The movable power distribution cabinet according to claim 8, wherein the fixing assembly comprises a horizontally arranged screw rod (19) and a vertically arranged disc (21), one end of the screw rod (19) penetrates through the power distribution cabinet body (1) to be inserted into the clamping strip (7), the disc (21) is rotatably connected with one side, close to the first partition plate (9), of the outer wall of the power distribution cabinet body (1), a threaded hole is formed in the middle of the disc (21), the outer wall of the screw rod (19) is in threaded connection with the inner wall of the threaded hole, and a horizontally arranged handle (20) is fixedly connected to one side, far away from the power distribution cabinet body (1), of the disc (21).