CN112886395B

CN112886395B - Power distribution equipment with leakage protection function

Info

Publication number: CN112886395B
Application number: CN202110246290.8A
Authority: CN
Inventors: 陈晴晴
Original assignee: 南斗星文化传媒(深圳)有限公司
Current assignee: Nandouxing Culture Media Shenzhen Co ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2022-04-19
Anticipated expiration: 2041-03-05
Also published as: CN112886395A

Abstract

The invention belongs to the technical field of power distribution, and particularly relates to power distribution equipment with a leakage protection function, which comprises a cabinet body, wherein a containing groove is formed in the periphery of a cabinet cover arranged at the top of the cabinet body, an insulating cover is folded and filled in the containing groove, the bottom end of the insulating cover is connected with a supporting frame, an alarm indicator lamp is arranged on the outer side of the lower end face of the cabinet cover, an insulating rail base is arranged on the inner side face of a cabinet door arranged on the front face of the cabinet body, a threaded guide rail is arranged on the insulating rail base, an arc-shaped slide rail is connected to the side face of the insulating rail base, a detection vehicle is connected to the arc-shaped slide rail, after leakage of a power distribution cabinet occurs, the leakage of the power distribution cabinet is detected before an electric shock accident of the power distribution cabinet which has the leakage occurs, and the power distribution cabinet which has the leakage occurs is covered by the arranged insulating cover, and the alarm indicator lamp gives a warning, so that electric shock of personnel is avoided, electric shock accidents are avoided, and the life safety of the personnel is effectively guaranteed.

Description

Power distribution equipment with leakage protection function

Technical Field

The invention belongs to the technical field of power distribution, and particularly relates to power distribution equipment with a leakage protection function.

Background

The distribution equipment is a general name of equipment such as a power distribution cabinet, a generator, a transformer, a power line, a circuit breaker, a low-voltage switch cabinet, a distribution board, a switch cabinet and a control cabinet in a power system, wherein the power distribution cabinet is the final-stage equipment of the power distribution system, the used quantity is huge, the electric leakage of the line or the equipment in the power distribution cabinet can be caused due to the factors such as dust, humid environment and line aging, so that the power distribution cabinet is electrified, the electric leakage electrification of the electric leakage needs special equipment to be detected, otherwise, people can hardly find the electric leakage line and the equipment, once a worker contacts the electrified power distribution cabinet, the human body is in electric shock, the electric shock accident happens, the general power distribution cabinet is directly installed indoors or outdoors, once the electric leakage of the electric leakage happens, other people such as passerby and the like do not touch the electrified power distribution cabinets, the electric shock happens, and the human body electric shock accident happens, the current power distribution cabinet with the leakage protection function cannot detect the leakage lines and equipment in advance, is a huge hidden danger for the life safety of personnel, and needs to invent a device to detect the leakage condition of the power distribution cabinet in advance and make warning and isolation to avoid the electric shock condition.

Disclosure of Invention

To solve the problems set forth in the background art described above. The invention provides a power distribution device with a leakage protection function, which has the characteristics of detecting the leakage condition of a power distribution cabinet in advance, warning and isolating.

In order to achieve the purpose, the invention provides the following technical scheme: a power distribution device with a leakage protection function comprises a cabinet body, a cabinet cover arranged at the top of the cabinet body and a cabinet door arranged at the front of the cabinet body, wherein the cabinet cover comprises a cabinet cover top and a cabinet cover bottom, a motor I is arranged in the middle of the inner wall of the cabinet cover top, the driving shaft of the motor I points to the cabinet body, accommodating grooves are formed in the periphery of the cabinet cover bottom, pulling holes are formed in the four corners of the accommodating grooves, 2086666a first type bracket is respectively arranged at the position, close to the four corners of the accommodating grooves, of the upper end face of the cabinet cover bottom, four Jiong-shaped brackets II are arranged at the position, close to the motor I, of the upper end face of the cabinet cover bottom, an insulating cover is connected inside the accommodating grooves, the insulating cover is filled in a folding mode, a supporting frame is connected to the bottom end of the insulating cover, pull ropes are connected to the positions of the four corners of the supporting frame, and pass through the insulating cover and the pulling holes, the detection vehicle bypasses the 20866; 'type bracket I' top end, penetrates through the Jiong-shaped bracket II and is connected with the driving shaft of the motor I, the lower end face of the cabinet cover bottom is positioned at the outer side of the accommodating groove and is provided with a plurality of alarm indicating lamps, the inner side face of the cabinet door is provided with an insulating track base, the head end and the tail end of the insulating track base are provided with limit blocks, one side of the limit blocks, which is close to the insulating track base, is provided with a collision sensor, the upper end face of the insulating track base is provided with a threaded guide rail, the side face of the insulating track base is connected with an arc-shaped slide rail through a connecting rib, and the arc-shaped slide rail is connected with a detection vehicle;

the utility model discloses a detection vehicle, including shell, detection mouth, current transformer, motor two, detection vehicle and threaded driving rod, detection vehicle includes the shell, set up the detection mouth in the middle of the top of shell, the top inner wall connection of shell has insulating the pad, just the one end parcel of insulating the pad is lived the four walls of detection mouth, the inner wall of shell is connected with current transformer through the elastic insulation connecting band, current transformer's top rotatable coupling has the electrically conductive probe needle of arc, the electrically conductive probe needle of arc passes the detection mouth extends to the outside of shell, electromagnetic switch is installed to the inner wall of shell, the bottom both sides of shell are connected with the arc spout, the arc spout with the arc slide rail phase-match, install motor two in the middle of the bottom of shell, motor two's drive shaft connection has the threaded driving rod, the threaded driving rod with threaded driving rod's threaded engagement is in the same place.

Preferably, the bending direction of the arc-shaped conductive probe needle is opposite to the running direction of the detection vehicle.

Preferably, the first 20866; -type bracket and the second Jiong-type bracket are located on diagonal lines of four corners of the accommodating groove, the first motor is located at the intersection of the diagonal lines of the accommodating groove, the top end of the first 20866; -type bracket and the driving shaft of the first motor are located on the same horizontal line, and the height of the second Jiong-type bracket is less than that of the first 20866; -type bracket.

Preferably, the first 20866; -shaped bracket is provided with a rolling cylinder at the top end, and the first 20866; -shaped bracket and the second Jiong-shaped bracket are similar in structure.

Preferably, the insulating cover is provided with two layers from inside to outside, namely an insulating layer and a waterproof layer, and the cabinet cover top is provided with four layers from outside to inside, namely a sun-proof coating, a waterproof coating, an insulating coating and a supporting layer.

Preferably, the projection area of the supporting frame is larger than that of the accommodating groove, and the height of the insulating cover is larger than that of the cabinet body.

Preferably, the electromagnetic switch is controlled by the current transformer, the electromagnetic switch is matched with the second motor, the first motor and the alarm indicator lamp, and the collision sensor is matched with the second motor.

Compared with the prior art, the invention has the beneficial effects that:

through the arrangement of the insulating track base and the detection vehicle, before the electric shock accident of the power distribution cabinet which has generated electric leakage is not caused, the position of the power distribution cabinet which generates electric leakage is detected, the power distribution cabinet with electric leakage is covered by the arranged insulating cover, and the alarm indicator lamp gives a warning, so that electric shock of people and electric shock accidents are avoided, the life safety of people is effectively guaranteed, and the specific leakage point in the power distribution cabinet is determined by detecting the position where the vehicle stays, thus avoiding the investigation of the working personnel one by one, bringing convenience to the overhaul of the working personnel, because the invention detects the electric leakage position of the cabinet body 1 in advance and isolates the cabinet body 1 with electric leakage in the insulating cover 28, the people are prevented from being remedied after electric shock, the life safety of the people is powerfully ensured, in particular, once an electric shock accident occurs to the high-voltage power distribution cabinet, few personnel can survive, and the hidden danger is well avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a schematic diagram of the excitation effect of the present invention;

FIG. 3 is a schematic view of the structure of the cabinet cover according to the present invention;

FIG. 4 is a schematic view of the structure of the insulating cover according to the present invention;

FIG. 5 is a schematic view of the structure of the inspection vehicle of the present invention;

FIG. 6 is a schematic cross-sectional view of the inspection vehicle of the present invention;

FIG. 7 is a schematic structural view of a first 20866; -type stent of the present invention;

fig. 8 is a schematic structural view of the top of the cabinet cover in the present invention.

In the figure: 1. a cabinet body; 2. a cabinet cover; 21. a cabinet cover top; 211. a sunscreen coating; 212. a water-resistant coating; 213. an insulating coating; 214. a support layer; 22. a cabinet cover bottom; 23. accommodating grooves; 231. pulling the hole; 24. pulling a rope; 25. 20866and bracket I; 251. a rolling cylinder; 26. jiong-shaped bracket II; 27. a first motor; 28. an insulating cover; 281. an insulating layer; 282. a waterproof layer; 29. a support frame; 3. a cabinet door; 4. detecting a vehicle; 41. a housing; 411. a detection port; 42. an arc-shaped conductive probe; 43. a current transformer; 44. an insulating pad; 45. an elastic insulating connecting band; 46. an electromagnetic switch; 47. a threaded drive rod; 48. a second motor; 49. an arc-shaped chute; 5. a limiting block; 51. a collision sensor; 6. an insulated rail base; 61. a threaded guide rail; 62. connecting ribs; 63. an arc-shaped slide rail; 7. and an alarm indicator light.

Detailed Description

The present invention will be further described with reference to the following detailed description, wherein the drawings are for illustrative purposes only and are not intended to be limiting, wherein certain elements may be omitted, enlarged or reduced in size, and are not intended to represent the actual dimensions of the product, so as to better illustrate the detailed description of the invention.

Referring to fig. 1-7, the present invention provides the following technical solutions: a power distribution device with a leakage protection function comprises a cabinet body 1, a cabinet cover 2 arranged at the top of the cabinet body 1 and a cabinet door 3 arranged at the front of the cabinet body 1, wherein the cabinet cover 2 comprises a cabinet cover top 21 and a cabinet cover bottom 22, a motor 27 is arranged in the middle of the inner wall of the cabinet cover top 21, a driving shaft of the motor 27 points to the cabinet body 1, accommodating grooves 23 are formed in the periphery of the cabinet cover bottom 22, pulling holes 231 are formed in four corners of the accommodating grooves 23, 20866a first support 25 is respectively arranged at the four corners, close to the accommodating grooves 23, of the upper end face of the cabinet cover bottom 22, four Jiong-shaped supports 26 are arranged at the positions, close to the motor 27, of the upper end face of the cabinet cover bottom 22, an insulating cover 28 is connected inside the accommodating grooves 23, the insulating cover 28 is filled in a folded mode, a supporting frame 29 is connected to the bottom end of the insulating cover 28, pull ropes 24 are connected to the four corners of the supporting frame 29, and the pull ropes 24 penetrate through the insulating cover 28 and the pulling holes 231, bypassing 20866;, the top end of the first bracket 25 is connected with the driving shaft of the first motor 27 through the second Jiong-shaped bracket 26, the lower end face of the cabinet cover bottom 22 is positioned at the outer side of the accommodating groove 23 and is provided with a plurality of alarm indicating lamps 7, the inner side face of the cabinet door 3 is provided with an insulating track base 6, the head and tail ends of the insulating track base 6 are provided with limit blocks 5, one side of the limit block 5, which is close to the insulating track base 6, is provided with a collision sensor 51, the upper end face of the insulating track base 6 is provided with a threaded guide rail 61, the side face of the insulating track base 6 is connected with an arc-shaped slide rail 63 through a connecting rib 62, and the arc-shaped slide rail 63 is connected with a detection vehicle 4;

detect car 4, including shell 41, detection mouth 411 has been seted up in the middle of the top of shell 41, the top wall connection of shell 41 has insulating pad 44, and the one end parcel of insulating pad 44 lives the four walls of detection mouth 411, the inner wall of shell 41 is connected with current transformer 43 through elastic insulation connecting band 45, the top rotatable coupling of current transformer 43 has the electrically conductive probe needle of arc 42, the electrically conductive probe needle of arc 42 passes the outside that detection mouth 411 extends to shell 41, electromagnetic switch 46 is installed to the inner wall of shell 41, the bottom both sides of shell 41 are connected with arc spout 49, arc spout 49 and arc slide rail 63 phase-match, install two 48 of motors in the middle of the bottom of shell 41, the drive shaft of two 48 of motors has screw thread actuating lever 47, screw thread 47 is in the same place with the screw-thread engagement of screw thread guide rail 61.

In this embodiment: the cabinet cover 2 plays a role in protecting and insulating the cabinet body 1, the cabinet cover 2 is divided into a cabinet cover top 21 and a cabinet cover bottom 22, a first motor 27 with a driving shaft pointing to the cabinet body 1 is installed in the middle of the inner wall of the cabinet cover top 21, an insulating cover 28 is pulled up or put down through the forward and reverse rotation of the first motor 27, an accommodating groove 23 is formed around the cabinet cover bottom 22, the insulating cover 28 is connected inside the accommodating groove 23, the insulating cover 28 is folded and filled inside the accommodating groove 23, the bottom end of the insulating cover 28 is connected with a supporting frame 29, pull ropes 24 are connected at the four corners of the supporting frame 29, the insulating cover 28 is made of light and thin materials and can be folded and put into the accommodating groove 23, the folded insulating cover 28 can be easily placed under the supporting frame 29 to cover the cabinet body 1, one end of each pull rope 24 is connected with the four corners of the supporting frame 29, the other end of each pull rope passes through the insulating cover 28 and a pulling hole 231 to bypass the top end of the first type support bracket 25, passes through a second Jiong type support bracket 26 and is connected with the driving shaft of the first motor 27, the insulation cover 28 is used for being pulled up or put down, folding marks are arranged on the insulation cover 28, the motor I27 pulls up the insulation cover 28 through the pull rope 24, the insulation cover 28 is folded and put into the accommodating groove 23, the lower end face of the cabinet cover bottom 22 is positioned on the outer side of the accommodating groove 23 and is provided with a plurality of alarm indicating lamps 7, when the cabinet body 1 leaks electricity, the alarm indicating lamps 7 twinkle yellow and shine to remind workers or passing personnel for warning, the inner side face of the cabinet door 3 is provided with the insulation track base 6, before the insulation track base 6 is installed, detection points of equipment and circuits in the cabinet body 1 which need electricity leakage detection are counted firstly, corresponding positions of the cabinet door 3 are marked and recorded, when the insulation track base 6 is installed, the insulation track base 6 passes through the detection points which need electricity leakage detection, the limiting blocks 5 are installed at the head end and the tail end of the insulation track base 6, and the detection vehicle 4 is prevented from sliding out of the threaded guide rail 61, a collision sensor 51 is installed on one side, close to the insulating track base 6, of the limiting block 5, when the detection vehicle 4 touches the limiting block 5, the detection vehicle is detected by the collision sensor 51, the collision sensor 51 controls the motor II 48 to rotate reversely, the detection vehicle 4 moves back, and in such a circulation manner, the upper end face of the insulating track base 6 is provided with a threaded guide rail 61, the threaded guide rail is matched with the threaded driving rod 47, when the motor II 48 rotates, the detection vehicle 4 is driven to move on the insulating track base 6, the side face of the insulating track base 6 is connected with an arc-shaped slide rail 63 through a connecting rib 62, the detection vehicle 4 is guided and prevented from falling, and the arc-shaped slide rail 63 is connected with the detection vehicle 4 and used for detecting the electric leakage part;

the detection vehicle 4 comprises a shell 41, a detection port 411 is formed in the middle of the top of the shell 41, an insulating pad 44 is connected to the inner wall of the top of the shell 41, one end of the insulating pad 44 wraps the four walls of the detection port 411 to prevent the arc-shaped conductive probe 42 from conducting leakage current leaked from equipment or lines in the cabinet body 1 to the detection vehicle 4, the inner wall of the shell 41 is connected with a current transformer 43 through an elastic insulating connecting belt 45, the current transformer 43 converts strong current leaked from the equipment or lines in the cabinet body 1 into weak and small current capable of controlling an electromagnetic switch 46, the arc-shaped conductive probe 42 is rotatably connected to the top of the current transformer 43, the arc-shaped conductive probe 42 penetrates through the detection port 411 to extend to the outside of the shell 41, the electromagnetic switch 46 is installed on the inner wall of the shell 41, a plurality of elastic insulating connecting belts 45 are arranged to fix the current transformer 43 in the detection vehicle 4, meanwhile, due to the arrangement of the elastic material, the arc-shaped conductive probe 42 can more easily pass through lines and equipment to be detected one by one and can be prevented from being scratched, and meanwhile, the arc-shaped conductive probe 42 is prevented from being deformed after being detected for many times, the two sides of the bottom of the shell 41 are connected with the arc-shaped sliding grooves 49, the arc-shaped sliding grooves 49 are matched with the arc-shaped sliding rails 63, the detection vehicle 4 can move on the insulating track base 6, the middle of the bottom of the shell 41 is provided with the motor II 48, the driving shaft of the motor II 48 is connected with the threaded driving rod 47, and the threaded driving rod 47 is meshed with threads of the threaded guide rail 61 to provide power for the movement of the detection vehicle 4.

In fig. 6, in particular, the bending direction of the arc-shaped conductive probe 42 is opposite to the running direction of the detection vehicle 4; the arc-shaped conductive probe pins 42 are convenient to detect lines and equipment to be detected one by one when the detection vehicle 4 moves.

In fig. 3, in particular, 20866;, first bracket 25 and second bracket 26 in Jiong shape are located on diagonal lines at four corners of the receiving groove 23, first motor 27 is located at the intersection of diagonal lines of the receiving groove 23, \\ 20866;, the top end of the first bracket 25 and the driving shaft of the first motor 27 are located on the same horizontal line, and the height of the second bracket Jiong is less than that of the first bracket 25, \\ 20866; when the motor 27 rolls the pull rope 24 to pull up the insulation cover 28, the insulation cover 28 can not be folded in the accommodating groove 23 evenly due to no side slip.

In fig. 7, particularly, 20866a first bracket 25 is provided with rolling cylinders 251, 20866at the top end, and the first bracket 25 is similar to the second bracket 26 in Jiong shape; the rolling barrel 251 is provided to facilitate pulling of the pulling rope 24.

In fig. 4 and 8, specifically, the insulating cover 28 has two layers from inside to outside, namely an insulating layer 281 and a waterproof layer 282, and the cabinet cover top 21 has four layers from outside to inside, namely a sunscreen coating 211, a waterproof coating 212, an insulating coating 213 and a supporting layer 214; the cabinet body 1 is insulated, isolated and protected.

In fig. 3, in particular, the projected area of the supporting frame 29 is larger than that of the accommodating groove 23, and the height of the insulating cover 28 is larger than that of the cabinet 1; the first motor 27 is prevented from pulling up the insulation cover 28 through the pull rope 24 to directly pull the insulation cover 28 into the accommodating groove 23 completely, and meanwhile, the insulation cover 28 can cover the cabinet body 1 completely when being put down.

In fig. 1 and 6, in particular, the electromagnetic switch 46 is controlled by the current transformer 43, the electromagnetic switch 46 is matched with the second motor 48, the first motor 27 and the alarm indicator lamp 7, and the collision sensor 51 is matched with the second motor 48; when the current transformer 43 is not switched on and leaks current, the second motor 48 operates to drive the detection vehicle 4 to run back and forth, when the detection vehicle 4 touches the limiting block 5, the collision sensor 51 detects a collision signal, the second motor 48 is controlled to rotate reversely, the detection vehicle 4 goes back, due to the blocking effect of circuits and equipment in the cabinet body 1, the bending direction of the arc-shaped conductive detection needle 42 is adjusted to the direction opposite to the advancing direction of the detection vehicle 4, the process is repeated, when the arc-shaped conductive detection needle 42 is switched on and leaks current, the current transformer 43 controls the electromagnetic switch 46 to be opened after the leakage current is weakened, the second motor 48 stops running, the position of the detection vehicle 4 is fixed, the first motor 27 runs, the cabinet body 1 is covered by putting down the insulating cover 28, the alarm indicator lamp 7 starts to flash yellow light, and the alarm is reminded to workers or the passing personnel.

The working principle and the using process of the invention are as follows: determining a cabinet body 1 to be subjected to electric leakage detection, counting detection points of equipment and lines in the cabinet body 1, which need electric leakage detection, marking corresponding positions of a cabinet door 3, recording, installing an insulating track base 6, enabling the insulating track base 6 to smoothly pass through each detection point to be detected, avoiding inflection points during installation, selecting a proper threaded guide rail 61 and an arc-shaped slide rail 63 for installation, aligning an arc-shaped chute 49 with the arc-shaped slide rail 63, pushing a detection vehicle 4 onto the insulating track base 6, installing a limiting block 5, installing a cabinet cover 2 at the top of the cabinet body 1, closing the cabinet door 3, starting the device, starting a second motor 48, driving the second motor 48 to rotate because a threaded driving rod 47 is meshed with the threaded guide rail 61, driving the threaded driving rod 47 to rotate by the rotation of the second motor 48, enabling the detection vehicle 4 to move along the insulating track base 6, and when the detection vehicle 4 moves to the end part of the insulating track base 6, the detection vehicle 4 moves back due to the fact that the bending direction of the arc-shaped conductive probe 42 is adjusted to the direction opposite to the advancing direction of the detection vehicle 4 under the action of obstruction of lines and equipment in the cabinet body 1, the detection vehicle is reciprocated in such a way that the bending direction of the arc-shaped conductive probe 42 is adjusted to the direction opposite to the advancing direction of the detection vehicle 4, meanwhile, the arc-shaped conductive probe 42 mounted on the detection vehicle 4 detects each detection point counted in advance one by one, when the equipment or the lines in the cabinet body 1 leak electricity, the electricity is detected by the arc-shaped conductive probe 42, the arc-shaped conductive probe 42 guides the leakage current into the current transformer 43, the electromagnetic switch 46 is controlled to be opened after the leakage current is weakened through the current transformer 43, the motor two 48 stops running, the detection vehicle 4 is fixed in position, the motor one 27 runs, the insulating cover 28 is put down to cover the cabinet body 1, the alarm indicator lamp 7 starts to flash yellow light, reminding and warning the staff or the passing staff, simultaneously avoiding the electric shock accident of the staff or the passing staff accidentally touching the electrified cabinet body 1, when a worker examines and repairs the cabinet body 1 with electric leakage, the preparation for electric shock prevention is made, the first motor 27 is started, the first motor 27 pulls the insulating cover 28 into the accommodating groove 23 through the pull rope 24, the cabinet door 3 is opened, the position of the detection vehicle 4 is determined, and compared with the recorded detection point position, thereby determining the electric leakage position of the equipment or the circuit in the cabinet body 1 for maintenance, avoiding the workers to discharge one by one, improving the working efficiency, avoiding the accident of electric shock caused by long-time one by one inspection, because the invention detects the electric leakage position of the cabinet body 1 in advance and isolates the cabinet body 1 with electric leakage in the insulating cover 28, the invention prevents people from remedying after electric shock, and powerfully ensures the life safety of the people.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a distribution equipment with earth leakage protection function, includes the cabinet body (1), installs cabinet lid (2) at the cabinet body (1) top and installing positive cabinet door (3) of the cabinet body (1), its characterized in that: the cabinet cover (2) comprises a cabinet cover top (21) and a cabinet cover bottom (22), a first motor (27) is installed in the middle of the inner wall of the cabinet cover top (21), the driving shaft of the first motor (27) is oriented to the cabinet body (1), accommodating grooves (23) are formed around the cabinet cover bottom (22), pulling holes (231) are formed in four corners of the accommodating grooves (23), 20866a first type support (25) is installed at the position, close to the four corners of the accommodating grooves (23), of the upper end face of the cabinet cover bottom (22), four Jiong type supports (26) are installed at the position, close to the first motor (27), of the upper end face of the cabinet cover bottom (22), an insulating cover (28) is connected to the inside of the accommodating grooves (23), the insulating cover (28) is filled in a folding mode, and a supporting frame (29) is connected to the bottom end of the insulating cover (28), the multifunctional cabinet is characterized in that pull ropes (24) are connected to the four corners of the supporting frame (29), the pull ropes (24) penetrate through the insulating cover (28) and the pulling hole (231) to bypass the top end of the first 20866;' shaped support (25) and penetrate through the second Jiong-shaped support (26) to be connected with a driving shaft of the first motor (27), the lower end face of the cabinet cover bottom (22) is located on the outer side of the accommodating groove (23) and is provided with a plurality of alarm indicating lamps (7), the inner side face of the cabinet door (3) is provided with an insulating track base (6), the head end and the tail end of the insulating track base (6) are provided with limit blocks (5), one side of each limit block (5) close to the insulating track base (6) is provided with a collision sensor (51), the upper end face of the insulating track base (6) is provided with a threaded guide rail (61), the side face of the insulating track base (6) is connected with an arc-shaped slide rail (63) through a connecting rib (62), the arc-shaped sliding rail (63) is connected with a detection vehicle (4); the detection vehicle (4) comprises a housing (41), a detection port (411) is formed in the middle of the top of the housing (41), an insulating pad (44) is connected to the inner wall of the top of the housing (41), one end of the insulating pad (44) wraps the four walls of the detection port (411), the inner wall of the housing (41) is connected with a current transformer (43) through an elastic insulating connecting belt (45), the top of the current transformer (43) is rotatably connected with an arc-shaped conductive probe needle (42), the arc-shaped conductive probe needle (42) penetrates through the detection port (411) and extends to the outside of the housing (41), an electromagnetic switch (46) is installed on the inner wall of the housing (41), arc-shaped sliding grooves (49) are connected to two sides of the bottom of the housing (41), the arc-shaped sliding grooves (49) are matched with arc-shaped sliding rails (63), a second motor (48) is installed in the middle of the bottom of the housing (41), a driving shaft of the second motor (48) is connected with a threaded driving rod (47), and the threaded driving rod (47) is meshed with the threads of the threaded guide rail (61); the electromagnetic switch (46) is controlled by the current transformer (43), the electromagnetic switch (46) is matched with the second motor (48), the first motor (27) and the alarm indicator lamp (7), and the collision sensor (51) is matched with the second motor (48).

2. A power distribution apparatus with earth leakage protection function as claimed in claim 1, wherein: the bending direction of the arc-shaped conductive probe (42) is opposite to the running direction of the detection vehicle (4).

3. A power distribution apparatus with earth leakage protection function as claimed in claim 1, wherein: the first 20866; ' shaped bracket (25) and the second Jiong-shaped bracket (26) are located on diagonal lines of four corners of the accommodating groove (23), the first motor (27) is located at the intersection of the diagonal lines of the accommodating groove (23), the top end of the first 20866; ' shaped bracket (25) and the driving shaft of the first motor (27) are located on the same horizontal line, and the height of the second Jiong-shaped bracket (26) is smaller than that of the first 20866; ' shaped bracket (25).

4. A power distribution apparatus with earth leakage protection function as claimed in claim 1, wherein: the structure of the first 20866; 'type bracket (25) is similar to that of the second Jiong-type bracket (26) in structure, and a rolling barrel (251) is installed at the top end of the first 20866;' type bracket (25).

5. A power distribution apparatus with earth leakage protection function as claimed in claim 1, wherein: two layers of insulating covers (28) are arranged from inside to outside and respectively comprise an insulating layer (281) and a waterproof layer (282), and four layers of sun-proof coatings (211), waterproof coatings (212), insulating coatings (213) and supporting layers (214) are arranged on the cabinet cover top (21) from outside to inside.

6. A power distribution apparatus with earth leakage protection function as claimed in claim 1, wherein: the projection area of the supporting frame (29) is larger than that of the accommodating groove (23), and the height of the insulating cover (28) is larger than that of the cabinet body (1).