Reverse power transmission safety guarantee device for power distribution network

Abstract

The invention provides a power distribution network reverse power transmission safety guarantee device, and belongs to the technical field of electric power overhaul, the device comprises a mobile vehicle body, a sliding assembly, an assembly box, a cutting assembly and an electric control assembly, the bottom end of the sliding assembly is connected to the upper end of the mobile vehicle body, and the top is provided with a sliding part; the assembling box comprises a left half box body and a right half box body which are in butt joint and combined with each other, a power distribution network wire sequentially penetrates through the side portion of the left half box body and the side portion of the right half box body, the upper end of the left half box body and the upper end of the right half box body are slidably connected to the sliding part, and the cutting assembly is suitable for clamping and fixing the wire penetrating through the assembling box and cutting the wire during reverse power transmission of the wire; the electric control assembly is electrically connected with the cutting assembly and is suitable for controlling the cutting assembly to operate. When the electric control assembly monitors reverse power transmission of the power distribution network, the cutting assembly is indicated to operate and cut off the wire. The power distribution network reverse power transmission safety guarantee device provided by the invention has the technical effects that the electric wire can be quickly cut off, the cutting effect is good, reverse power transmission of the electric wire is prevented, and potential safety hazards are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power maintenance, and more specifically, relates to a distribution network reverse power transmission safety guarantee device. Background Art

[0002] When a power distribution line in an electric power system fails or is regularly overhauled, it is necessary to connect various test instruments to the distribution network line to find line faults or test various parameters. When the operation and maintenance personnel operate the test instruments or test data, once the line reverses power, an accident that endangers the life and safety of the operation and maintenance personnel will occur. Therefore, when repairing or testing a distribution network line fault, it is necessary to connect an anti-reverse power safety protection device between the distribution line and the test instrument, so that the test instrument can be disconnected when the distribution network line reverses power, thereby ensuring the life and safety of the operation and maintenance personnel. The anti-reverse power safety protection device used in the prior art lacks the ability to fix the wires during the wire cutting process, which often results in the wires not being completely cut off in one cut, resulting in the reverse power phenomenon still existing, which may cause a fire and endanger personnel safety. Therefore, it is necessary to design a device that can detect whether there is reverse power in the distribution network, and can quickly cut off the wires when reverse power is detected, so as to avoid potential safety hazards. Summary of the invention

[0003] The purpose of the present invention is to provide a distribution network reverse power safety device, which aims to solve the technical problem that the distribution network wires cannot be quickly cut off when reverse power occurs, resulting in the reverse power transmission site still existing and endangering the safety of personnel.

[0004] To achieve the above object, the technical solution adopted by the present invention is: to provide a distribution network reverse power transmission safety guarantee device, comprising:

[0005] The mobile vehicle has the freedom to move in any direction;

[0006] A sliding assembly, the bottom end of which is connected to the upper end of the moving vehicle body and the top of which is provided with a sliding portion;

[0007] An assembly box, comprising a left half box and a right half box that are butt-jointed and assembled with each other, the power distribution network wires pass through the side of the left half box and the side of the right half box in sequence, the upper ends of the left half box and the right half box are both slidably connected to the sliding part and both have the freedom to move along the length direction of the mobile body;

[0008] A cutting assembly is arranged in the space enclosed by the left half box and the right half box, and the cutting assembly is suitable for clamping and fixing the wires passing through the assembly box and cutting the wires when the wires are reversely fed;

[0009] An electric control component is electrically connected to the cutting group and is suitable for controlling the operation of the cutting component. When the electric control component detects reverse power transmission in the distribution network, it instructs the cutting component to operate and cut off the wires.

[0010] In a possible implementation, the sliding component includes:

[0011] A support part, the bottom end of which is connected to the upper end of the mobile body, and the position where the support part is connected to the mobile body can be adjusted;

[0012] A crossbeam, one end of which is connected to the upper end of the support part and the other end is a cantilever end, the crossbeam is arranged horizontally, the sliding part is a slide and is arranged at the bottom end of the crossbeam, the length direction of the slide is arranged parallel to the length direction of the moving vehicle body, and the crossbeam has a long strip through hole penetrating the upper end and the lower end thereof along its length direction;

[0013] Two groups of ejector rods are connected to the upper end of the cross beam, and the pushing ends of the two groups of ejector rods are connected with levers. The two groups of levers vertically pass through the long strip through holes and are respectively connected to the left half box and the right half box. The two groups of ejector rods are respectively used to push the left half box and the right half box to slide in the slideway, and the electric control components are respectively electrically connected to the two groups of ejector rods and are suitable for controlling the operation of the two groups of ejector rods.

[0014] In a possible implementation, the upper end of the left half box and the upper end of the right half box are both connected to a hanger, the slide is connected to two sliders, two groups of the hangers are respectively connected to multiple sliders, two levers are respectively connected to two sliders, and two groups of push rods are respectively suitable for pushing the sliders to slide to adjust the distance between the left half box and the right half box so that the assembly box can be opened or closed, the assembly box is opened to expose the cutting assembly, and the assembly box is closed to surround the cutting assembly.

[0015] In a possible implementation, the cutting assembly includes:

[0016] A circular ring member is vertically arranged inside the assembly box, and the axial direction of the circular ring member is in the horizontal direction;

[0017] A clamping mechanism connected to the inner wall of the circular ring member and suitable for clamping the wire;

[0018] A cutting motor, one end of which has a power output shaft passing through the center of the circular ring, the axial direction of the power output shaft coincides with the axial direction of the circular ring, the cutting motor is electrically connected to the electronic control component and its operation is controlled by the electronic control component;

[0019] A plurality of blade groups are connected to the outer circumferential wall of the power output shaft, and the blade groups are evenly distributed along the circumference of the power output shaft. The cutting motor is used to drive the blade groups to rotate, and the blades are used to cut the wires passing through the clamping mechanism inside the circular ring.

[0020] In a possible implementation, the other end of the cutting motor is connected to the inner wall of the assembly box, a sleeve is sleeved on the outer circumference of the power output shaft, one end of the multiple groups of blades are connected to the outer wall of the sleeve, and the multiple groups of blades form a circular array around the circumference of the sleeve.

[0021] In one possible implementation, a rotating table is connected to the top of the assembly box, the lower end of the rotating table passes through the top of the assembly box and has a rotating end that rotates circumferentially in a horizontal plane, the rotating end is connected to the upper end of the circular ring member, the rotating table is suitable for driving the circular ring member to rotate, an arc-shaped slide plate is provided on the inner wall of the assembly box, and the cutting motor is slidably connected to the arc-shaped slide plate; when the rotating table drives the circular ring member to rotate, the cutting motor slides on the arc-shaped slide plate at the same time to keep the axial direction of the circular ring member coincident with the axial direction of the power output shaft, thereby adapting to the wires passing through the assembly line in different directions, the rotating table is electrically connected to the electronic control component and its operation is controlled by the electronic control component.

[0022] In a possible implementation, the clamping mechanism includes:

[0023] Two groups of fixing plates are arranged at intervals and connected to the inner wall of the circular ring at the same end, the length direction of the fixing plates is along the radial direction of the circular ring, and the two groups of fixing plates form a cutting area suitable for the blade to pass through;

[0024] The two fixing members are both semicircular and respectively connected to the upper ends of the two groups of fixing plates. The wires pass through the two fixing members in sequence. The fixing members are suitable for clamping and fixing the wires. The blade cuts the wires when passing through the cutting area.

[0025] In a possible implementation, the inner wall of the circular ring is connected to an annular slide rail, which is arranged circumferentially along the inner wall of the circular ring. The two fixed plates are slidably connected to the annular slide rail near one end of the circular ring and can adjust positions and limit positions on the annular slide rail.

[0026] In a possible implementation, the left half box side and the right half box side are both provided with a plurality of lead-in holes, and the wires pass through the lead-in holes on the left half box, the cutting assembly and the lead-in holes on the right half box in sequence.

[0027] In a possible implementation, the electric control component is connected to the outer wall of the assembly box, and includes:

[0028] Oscilloscope, suitable for detecting whether there is reverse power transmission in the power distribution network wires;

[0029] A PLC controller is electrically connected to the oscilloscope, the sliding assembly and the cutting assembly respectively. The PLC controller is used to determine whether the electric wire is reversely transmitting electricity based on the detection signal received from the oscilloscope, and controls the operation of the sliding assembly and the cutting assembly respectively.

[0030] The beneficial effects of the power distribution network reverse power transmission safety guarantee device provided by the present invention are as follows: compared with the prior art, the power distribution network reverse power transmission safety guarantee device provided by the present invention comprises a mobile body, a sliding assembly, an assembly box, a cutting assembly and an electric control assembly, the mobile body has the freedom to move in any direction; the bottom end of the sliding assembly is connected to the upper end of the mobile body, and the top has a sliding part; the assembly box comprises a left half box body and a right half box body that are butt-jointed and combined with each other, the power distribution network wires pass through the side of the left half box body and the side of the right half box body in turn, the upper ends of the left half box body and the right half box body are both slidably connected to the sliding part and both have the ability to move along the length direction of the mobile body The cutting assembly is arranged in the space enclosed by the left half box and the right half box, and is suitable for clamping and fixing the wires passing through the assembly box and cutting the wires when the power is reversed; the electric control assembly is electrically connected to the cutting group and is suitable for controlling the operation of the cutting assembly, and when the electric control assembly detects that the power distribution network has reversed power, it instructs the cutting assembly to operate and cut the wires, which solves the technical problem that the power distribution network wires cannot be quickly cut off when reverse power is transmitted, resulting in the existence of reverse power transmission on the wire site, endangering the safety of personnel, and has the technical effect of being able to quickly cut off the wires, with good cutting effect, preventing the wires from transmitting power in reverse, and avoiding potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of a power distribution network reverse power transmission safety guarantee device provided by an embodiment of the present invention;

[0033] Figure 2 A schematic diagram of a partial structure of a power distribution network reverse power transmission safety guarantee device provided by an embodiment of the present invention;

[0034] Figure 3 for Figure 2 Schematic diagram of the upper structure in FIG.

[0035] Figure 4 for Figure 2 Schematic diagram of the lower structure (excluding cutting components);

[0036] Figure 5 A schematic diagram of the structure of a cutting assembly of a power distribution network reverse power transmission safety guarantee device provided by an embodiment of the present invention (the arrow in the figure indicates the direction of rotation of the blade);

[0037] Figure 6 for Figure 5 Schematic diagram of the clamping mechanism structure (the arrow in the figure indicates the direction of wire insertion).

[0038] Description of reference numerals:

[0039] 1. Moving body; 2. Sliding assembly; 21. Sliding part; 22. Support part; 23. Crossbeam; 24. Push rod; 25. Long strip through hole; 26. Push rod; 27. Hanger; 28. Sliding block; 29. ​​Hook; 3. Assembly box; 31. Left half box; 32. Right half box; 33. Lifting ear; 34. Magnet; 35. Rotating table; 36. Arc slide; 37. Through hole; 4. Cutting assembly; 41. Circular ring; 42. Clamping mechanism; 421. Fixed plate; 422. Fixed part; 423. Cutting area; 424. Spring; 425. Push screw; 43. Cutting motor; 44. Blade; 45. Power output shaft; 46. Sleeve; 47. Annular slide; 5. Electronic control assembly. DETAILED DESCRIPTION

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] Please also read Figures 1 to 6 , now a distribution network reverse power transmission safety guarantee device provided by the present invention is described. The distribution network reverse power transmission safety guarantee device comprises a mobile body 1, a sliding component 2, an assembly box 3, a cutting component 4 and an electric control component 5. The mobile body 1 has the freedom to move in any direction; the bottom end of the sliding component 2 is connected to the upper end of the mobile body 1, and the top has a sliding part 21; the assembly box 3 comprises two mutually docked left half box 31 and right half box 32, and the distribution network wire ( Figure 2The structure represented by the dotted line arranged horizontally in the middle) passes through the side of the left half box 31 and the side of the right half box 32 in sequence. The upper ends of the left half box 31 and the right half box 32 are both slidably connected to the sliding part 21 and have the freedom to move along the length direction of the mobile body 1; the cutting component 4 is arranged in the space enclosed by the left half box 31 and the right half box 32, and the cutting component 4 is suitable for clamping and fixing the wires passing through the assembly box 3 and cutting the wires when the power is reversed; the electric control component 5 is electrically connected to the cutting group and is suitable for controlling the operation of the cutting component 4. When the electric control component 5 detects that the power distribution network is reversed, it instructs the cutting component 4 to operate and cut the wires.

[0042] The invention provides a power distribution network reverse transmission safety guarantee device. Compared with the prior art, a mobile body 1 is arranged to be movable in any direction, so that the wires can be cut conveniently when reverse transmission is performed at different positions to ensure safety. The electric control component 5 can monitor in real time whether there is reverse transmission in the distribution network and can instruct the cutting component 4 to operate at the first time when reverse transmission occurs to reduce potential safety hazards. The invention solves the technical problem that the wires in the distribution network cannot be quickly cut off when reverse transmission occurs, resulting in the existence of reverse transmission of the wires at the scene, endangering the safety of personnel. The invention has the technical effects of being able to quickly cut off the wires, having a good cutting effect, preventing reverse transmission of the wires, and avoiding potential safety hazards.

[0043] The assembly box 3 used in this embodiment is a two-half box structure that can be split and combined. The interior is hollow and can be made of insulating material. The electric control component 5 includes a control panel, a control circuit, etc., and can be controlled and operated separately after being electrically connected to the sliding component 2 and the cutting component 4, so that it can automatically detect the reverse power transmission of the power distribution network wires and can cut off the wires in the first time when reverse power transmission occurs, prevent reverse power transmission and effectively ensure safety. It should be noted that the cutting component 4 can be started when the assembly box 3 is in a closed state. The left half box 31 and the right half box 32 in this embodiment have the same structure. The assembly box 3 can be regarded as a rectangular parallelepiped or a cube. At this time, the assembly box 3 is divided into two parts vertically from the middle to form a left half box 31 and a right half box 32. The bottom of the mobile body 1 has a running wheel, which can move the mobile body 1 in any direction after rotation. The bottom of the mobile body 1 is also provided with a motor and a brake. The motor can drive the running wheel to rotate, and the brake can brake the running wheel, that is, lock the current position of the mobile body 1.

[0044] In some embodiments, see Figures 1 to 3The sliding assembly 2 includes a support portion 22, a crossbeam 23 and two sets of ejector rods 24. The bottom end of the support portion 22 is connected to the upper end of the mobile body 1, and the position of the support portion 22 connected to the mobile body 1 can be adjusted; one end of the crossbeam 23 is connected to the upper end of the support portion 22, and the other end is a cantilever end. The crossbeam 23 is arranged horizontally, and the sliding portion 21 is a slide and is arranged at the bottom end of the crossbeam 23. The length direction of the slide is parallel to the length direction of the mobile body 1. The crossbeam 23 has a through-hole at its upper end along its length direction. and the long strip through hole 25 at the lower end; the two groups of ejector rods 24 are connected to the upper end of the cross beam 23, and the pushing ends of the two groups of ejector rods 24 are connected with the lever 26, and the two groups of levers 26 pass through the long strip through hole 25 in a vertical shape and are respectively connected to the left half box 31 and the right half box 32, and the two groups of ejector rods 24 are respectively used to push the left half box 31 and the right half box 32 to slide in the slideway, and the electric control assembly 5 is respectively electrically connected to the two groups of ejector rods 24 and is suitable for controlling the operation of the two groups of ejector rods 24. The support part 22 can play the role of supporting the cross beam 23 and provide a certain stability. From the side, the support part 22 is arranged in a herringbone shape, and the bottom is located at the upper end of the mobile body 1. The cross beam 23 plays the role of suspending the assembly box 3, etc., and its structure is relatively stable. The push rod 24 is a product in the prior art. It can be adjusted to be telescopic after being controlled, so that the left half box 31 and the right half box 32 can be pushed to move, and the distance between the two can be adjusted after the movement. When it is necessary to pass the wires to the cutting assembly 4, the left half box 31 or the right half box 32 can be controlled to move so that there is a distance between the two. At this time, the wires can be inserted into or passed through the cutting assembly 4, or through the left half box 31 or the right half box 32, which is conducive to the installation of the wires. When the left half box 31 and the right half box 32 are in contact with each other, the cutting assembly 4 is surrounded at this time, and there will be no external influence when the wires are cut.

[0045] The extension and retraction of the ejection rod 24 can be controlled by the electric control assembly 5, and the lever 26 moves in the long strip through hole 25. With the ejection or extension of the ejection rod 24, the left half box 31 or the right half box 32 can be pushed to move.

[0046] The present invention also includes a remote controller, which is wirelessly connected to the electronic control component 5. The remote controller also has the same control function as the electronic control component 5. At this time, by controlling the remote controller, it can also detect the reverse power transmission of the power grid and cut the wires.

[0047] To achieve connection with the left half box 31 or the right half box 32, in some embodiments, refer to Figures 1 to 3The upper ends of the left half box 31 and the right half box 32 are both connected with a sling 27, the slideway is connected with two sliders 28, the two sets of slings 27 are respectively connected with a plurality of sliders 28, the two levers 26 are respectively connected with two sliders 28, and the two sets of push rods 24 are respectively suitable for pushing the sliders 28 to slide, so as to adjust the distance between the left half box 31 and the right half box 32, so as to open or close the assembly box 3, the assembly box 3 is opened to expose the cutting assembly 4, and the assembly box 3 is closed to surround the cutting assembly 4. The sling 27 is a rope or a steel wire rope, which is flexible, and the upper ends of the left half box 31 and the right half box 32 are provided with lifting ears 33, the two ends of the sling 27 can be detachably connected with the lifting ears 33, and the bottom end of the slider 28 is provided with a hook 29, which can be hooked to the middle of the sling 27, so that the left half box 31 or the right half box 32 can be lifted. By pushing the slider 28 on the slideway through the lever 26, the moving position of the left half box 31 or the right half box 32 can be adjusted. When the assembly is opened, there is a distance between the left half box 31 and the right half box 32, and the distance is controllable. When the assembly is closed, the distance between the left half box 31 and the right half box 32 is zero, that is, the two are in contact with each other. The adjustment operation of the sliding position of the slider 28 by the push rod 24 is relatively smooth. Specifically, the long strip through hole 25 is set up through the middle of the slideway, that is, the lower end of the lever 26 is connected to the upper end of the slider 28, and the side of the slider 28 is slidably connected to the slideway.

[0048] Preferably, magnets 34 that can be attracted to each other are provided at the upper ends of the left half box 31 and the right half box 32 and at positions close to each other. When the left half box 31 and the right half box 32 are in contact with each other, the magnets 34 can be attracted to each other, that is, the left half box 31 and the right half box 32 can be pressed tightly against each other to achieve a fixed connection between the two.

[0049] In some embodiments, see Figure 2 and Figure 5The cutting assembly 4 includes a circular ring 41, a clamping mechanism 42, a cutting motor 43 and multiple sets of blades 44. The circular ring 41 is vertically arranged inside the assembly box 3, and the axial direction of the circular ring 41 is in the horizontal direction; the clamping mechanism 42 is connected to the inner wall of the circular ring 41 and is suitable for clamping the wire; one end of the cutting motor 43 has a power output shaft 45 and passes through the center of the circular ring 41, and the axial direction of the power output shaft 45 coincides with the axial direction of the circular ring 41. The cutting motor 43 is electrically connected to the electronic control component 5 and its operation is controlled by the electronic control component 5; the multiple sets of blades 44 are all connected to the outer circumferential wall of the power output shaft 45, and the multiple sets of blades 44 are evenly distributed along the circumference of the power output shaft 45. The cutting motor 43 is used to drive the multiple sets of blades 44 to rotate, and the blades 44 are used to cut the wires passing through the clamping mechanism 42 inside the circular ring 41. The circular ring 41 is in a circular shape and has a certain thickness. It is usually arranged inside the left half of the box 31. The wire passes through the clamping mechanism 42. The clamping mechanism 42 can clamp or fix the wire, which is beneficial for the wire not to run out or move when cutting the wire, and is beneficial for fast cutting of the wire. The cutting motor 43 drives the rear power output shaft 45 to rotate, which can drive multiple sets of blades 44 to rotate. The blades 44 can pass through the clamping mechanism 42 when rotating and can cut the wire. When there are multiple wires, they can pass through the clamping mechanisms 42 at different positions respectively. Multiple sets of clamping mechanisms 42 are evenly distributed along the inner circumference of the circular ring 41. In this embodiment, there are two sets of blades 44, and each set of blades 44 can pass through the clamping mechanism 42 and cut the wire.

[0050] To fix the cutting motor 43, in some embodiments, refer to Figure 2 and Figure 5 The other end of the cutting motor 43 is connected to the inner wall of the assembly box 3, the outer circumference of the power output shaft 45 is sleeved with a sleeve 46, one end of the multiple sets of blades 44 are connected to the outer wall of the sleeve 46, and the multiple sets of blades 44 form a circular array around the circumference of the sleeve 46. The multiple sets of blades 44 are connected to the outer wall of the sleeve 46. When the power output shaft 45 rotates, the sleeve 46 can be driven to rotate at the same time. At this time, the blades 44 rotate, and pass through the clamping mechanism 42 during rotation and cut the wire. The cutting motor 43 is arranged on one side of the circular ring 41 and the power output shaft 45 is axially along the circular ring 41 and passes through the circular ring 41.

[0051] Preferably, bearings (not shown in the figure) can also be arranged on both sides of the circular ring member 41, so that the power output shaft 45 passes through the bearings on both sides. In this case, the cutting motor 43 is arranged more stably, and the sleeve 46 is arranged between the bearings on both sides, and the sleeve 46 is located in the space enclosed by the circular ring member 41.

[0052] In order to accommodate multiple wires passing through different positions on the assembly box 3, the wires are arranged in a straight line as much as possible. In some embodiments, refer to Figure 2 and Figure 4, a rotating table 35 is connected to the top of the assembly box 3. The lower end of the rotating table 35 passes through the top of the assembly box 3 and has a rotating end that rotates circumferentially in a horizontal plane. The rotating end is connected to the upper end of the circular ring 41. The rotating table 35 is suitable for driving the circular ring 41 to rotate. An arc-shaped slide 36 is provided on the inner wall of the assembly box 3. The cutting motor 43 is slidably connected to the arc-shaped slide 36. When the rotating table 35 drives the circular ring 41 to rotate, the cutting motor 43 slides on the arc-shaped slide 36 at the same time to keep the axial direction of the circular ring 41 coincident with the axial direction of the power output shaft 45, so as to adapt to the wires passing through the assembly line in different directions. The rotating table 35 is electrically connected to the electric control component 5 and its operation is controlled by the electric control component 5. By manipulating the electric control component 5, the rotation of the rotating table 35 can be controlled, so that the rotation angle of the circular ring 41 can be adjusted, so that the wires pass through the clamping mechanism 42 in a straight line, so that the wires are not bent or deformed as much as possible. The rotating table 35 is an electric rotating table in the prior art. After being controlled, its lower end can rotate by itself, thereby driving the circular ring 41 to rotate in the horizontal plane, thereby adjusting or adapting to the threading direction of the wire, so that the wire can pass through the clamping mechanism 42, so as to facilitate the blade 44 to cut the wire. When the circular ring 41 rotates, the cutting motor 43 is rotated at the same time, and the cutting motor 43 slides on the arc slide 36 and will not fall off, so as to match the rotation of the circular ring 41. The arc slide 36 is arranged in a horizontal shape, and a slider 28 is arranged at the bottom of the cutting motor 43, and the slider 28 can slide on the arc slide 36. It should be noted that the sliding of the cutting motor 43 can be manually adjusted or an electric push rod (not shown in the figure) can be arranged in the assembly box 3 to push the cutting motor 43 to slide. The electric push rod is electrically connected to the electric control component 5 and its operation is controlled by the electric control component 5, and the pushing distance of the electric push rod should match the rotation angle of the rotating table 35.

[0053] In some embodiments, see Figure 5 to Figure 6 The clamping mechanism 42 includes two sets of fixed plates 421 and two fixing members 422. The two sets of fixed plates 421 are arranged at intervals and connected to the inner wall of the circular ring 41 at the same end. The length direction of the fixed plates 421 is along the radial direction of the circular ring 41. The two sets of fixed plates 421 form a cutting area 423 suitable for the blade 44 to pass through. The two fixing members 422 are both semicircular and connected to the upper ends of the two sets of fixed plates 421. The wires pass through the inside of the two fixing members 422 in sequence. The fixing members 422 are suitable for clamping and fixing the wires. The blade 44 cuts the wires when passing through the cutting area 423. The two fixed plates 421 have a certain thickness and are arranged at intervals. The blade 44 passes through the space between the two fixed plates 421 (cutting area 423) and can cut the wires. The width of the cutting area 423 is greater than the thickness of the blade 44. Since the wires are clamped and fixed by the two fixing members 422, the wires will not run out or move during the cutting process of the blade 44, so that the wires can be cut in one cutting action. The two fixing members 422 are semicircular in shape and can form a surrounding structure for the electric wires, that is, they can lock and fix the electric wires.

[0054] As a preference, see Figure 6 A plurality of springs 424 are evenly distributed along the arc direction of the inner wall of the fixing member 422. The springs 424 are made of insulating material. The springs 424 have a radial elastic pushing force toward the wire, that is, the springs 424 can lock and fix the wire, and the wire will not slide or move inside the fixing member 422. When the blade 44 cuts the wire, the blade 44 can cut the wire at one time, and the cutting effect is higher.

[0055] In order to meet the requirements of threading wires arranged in different directions and facilitate the threading of wires in the assembly box 3, in some embodiments, refer to Figure 5 to Figure 6 , the inner wall of the circular ring 41 is connected with an annular slide rail 47, and the annular slide rail 47 is arranged along the circumference of the inner wall of the circular ring 41. Two fixed plates 421 are slidably connected to the annular slide rail 47 near one end of the circular ring 41, and the position and limit can be adjusted on the annular slide rail 47. The annular slide rail 47 is arranged in a circular ring shape, or is a groove body or a slide groove arranged on the inner wall of the circular ring 41. One end of the fixed plate 421 is slidably connected in the slide groove, and the position of the fixed plate 421 can be adjusted. A top screw 425 passes through the fixed plate 421. When the position of the fixed plate 421 is adjusted, by screwing the top screw 425, the inner end of the top screw 425 can abut against the circular ring 41, thereby fixing the fixed member 422 on the circular ring 41. In this embodiment, four sets of clamping mechanisms 42 are provided, which can be adjusted according to the position of the wire.

[0056] In order to facilitate the wires to pass through the assembly box 3 and facilitate cutting of the wires after passing through, in some embodiments, refer to Figure 1 to Figure 2 , Figure 4 The left half box 31 and the right half box 32 are both provided with a plurality of lead-in holes 37, and the wires pass through the lead-in holes 37 on the left half box 31, the cutting assembly 4 and the lead-in holes 37 on the right half box 32 in sequence. There are a plurality of lead-in holes 37 and they are arranged on each side, which is convenient for the wires to pass through.

[0057] In some embodiments, see Figure 1 to Figure 2 , the electric control component 5 is connected to the outer wall of the assembly box 3, which also includes an oscilloscope and a PLC controller. The oscilloscope is suitable for detecting whether there is reverse power transmission on the power distribution network wires; the PLC controller is electrically connected to the oscilloscope, the sliding component 2 and the cutting component 4 respectively. The PLC controller is used to determine whether the power distribution network wires have reverse power transmission according to the detection signal received from the oscilloscope, and controls the operation of the sliding component 2 and the cutting component 4 respectively. According to the prior art, the oscilloscope can detect whether there is reverse power transmission on the power distribution network wires. If there is reverse power transmission, the cutting component 4 is immediately instructed to operate. At the same time, the extension and retraction of the push rod 24 of the sliding component 2 must be ensured so that the assembly box 3 can be in a closed state.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A distribution network reverse power transmission safety guarantee device, characterized in that: include: The mobile vehicle has the freedom to move in any direction; A sliding assembly, the bottom end of which is connected to the upper end of the moving vehicle body and the top of which is provided with a sliding portion; An assembly box, comprising a left half box and a right half box that are butt-jointed and assembled with each other, the power distribution network wires pass through the side of the left half box and the side of the right half box in sequence, the upper ends of the left half box and the right half box are both slidably connected to the sliding part and both have the freedom to move along the length direction of the mobile body; A cutting assembly is arranged in the space enclosed by the left half box and the right half box, and the cutting assembly is suitable for clamping and fixing the wires passing through the assembly box and cutting the wires when the wires are reversely fed; An electric control component is electrically connected to the cutting group and is suitable for controlling the operation of the cutting component. When the electric control component detects reverse power transmission in the distribution network, it instructs the cutting component to operate and cut off the wires.

2. A distribution network reverse power transmission safety guarantee device as claimed in claim 1, characterized in that: The sliding assembly comprises: A support part, the bottom end of which is connected to the upper end of the mobile body, and the position where the support part is connected to the mobile body can be adjusted; A crossbeam, one end of which is connected to the upper end of the support part and the other end is a cantilever end, the crossbeam is arranged horizontally, the sliding part is a slide and is arranged at the bottom end of the crossbeam, the length direction of the slide is arranged parallel to the length direction of the moving vehicle body, and the crossbeam has a long strip through hole penetrating the upper end and the lower end thereof along its length direction; Two groups of ejector rods are connected to the upper end of the cross beam, and the pushing ends of the two groups of ejector rods are connected with levers. The two groups of levers vertically pass through the long strip through holes and are respectively connected to the left half box and the right half box. The two groups of ejector rods are respectively used to push the left half box and the right half box to slide in the slideway, and the electric control components are respectively electrically connected to the two groups of ejector rods and are suitable for controlling the operation of the two groups of ejector rods.

3. A distribution network reverse power transmission safety guarantee device as claimed in claim 2, characterized in that: The upper ends of the left and right half boxes are both connected with hangers, the slides are connected with two sliders, two groups of hangers are respectively connected with a plurality of sliders, two levers are respectively connected with two sliders, and two groups of push rods are respectively suitable for pushing the sliders to slide, so as to adjust the distance between the left and right half boxes, so as to open or close the assembly box, and the cutting assembly is exposed when the assembly box is opened, and the cutting assembly is surrounded when the assembly box is closed.

4. A distribution network reverse power transmission safety guarantee device as claimed in claim 1, characterized in that: The cutting assembly comprises: A circular ring member is vertically arranged inside the assembly box, and the axial direction of the circular ring member is in the horizontal direction; A clamping mechanism connected to the inner wall of the circular ring member and suitable for clamping the wire; A cutting motor, one end of which has a power output shaft passing through the center of the circular ring, the axial direction of the power output shaft coincides with the axial direction of the circular ring, the cutting motor is electrically connected to the electronic control component and its operation is controlled by the electronic control component; A plurality of blade groups are connected to the outer circumferential wall of the power output shaft, and the blade groups are evenly distributed along the circumference of the power output shaft. The cutting motor is used to drive the blade groups to rotate, and the blades are used to cut the wires passing through the clamping mechanism inside the circular ring.

5. A distribution network reverse power transmission safety guarantee device as claimed in claim 4, characterized in that: The other end of the cutting motor is connected to the inner wall of the assembly box, the outer circumference of the power output shaft is sleeved with a sleeve, one end of the multiple groups of blades are connected to the outer wall of the sleeve, and the multiple groups of blades form a circular array around the circumference of the sleeve.

6. A distribution network reverse power transmission safety guarantee device as claimed in claim 4, characterized in that: A rotating table is connected to the top of the assembly box, the lower end of the rotating table passes through the top of the assembly box and has a rotating end that rotates circumferentially in a horizontal plane, the rotating end is connected to the upper end of the circular ring member, the rotating table is suitable for driving the circular ring member to rotate, an arc-shaped slide plate is provided on the inner wall of the assembly box, and the cutting motor is slidably connected to the arc-shaped slide plate; when the rotating table drives the circular ring member to rotate, the cutting motor slides on the arc-shaped slide plate at the same time to keep the axial direction of the circular ring member coincident with the axial direction of the power output shaft, thereby adapting to the wires passing through the assembly line in different directions, the rotating table is electrically connected to the electronic control component and its operation is controlled by the electronic control component.

7. A distribution network reverse power transmission safety guarantee device as claimed in claim 4, characterized in that: The clamping mechanism comprises: Two groups of fixing plates are arranged at intervals and connected to the inner wall of the circular ring at the same end, the length direction of the fixing plates is along the radial direction of the circular ring, and the two groups of fixing plates form a cutting area suitable for the blade to pass through; The two fixing members are both semicircular and respectively connected to the upper ends of the two groups of fixing plates. The wires pass through the two fixing members in sequence. The fixing members are suitable for clamping and fixing the wires. The blade cuts the wires when passing through the cutting area.

8. A distribution network reverse power transmission safety guarantee device as claimed in claim 7, characterized in that: The inner wall of the circular ring is connected with an annular slide rail, which is arranged along the circumference of the inner wall of the circular ring. The two fixing plates are slidably connected to the annular slide rail near one end of the circular ring and can adjust positions and limit positions on the annular slide rail.

9. A distribution network reverse power transmission safety guarantee device as claimed in claim 1, characterized in that: The left half box side and the right half box side are both provided with a plurality of lead-in holes, and the wires pass through the lead-in holes on the left half box, the cutting assembly and the lead-in holes on the right half box in sequence.

10. A distribution network reverse power transmission safety guarantee device as claimed in claim 1, characterized in that: The electric control component is connected to the outer wall of the assembly box, and includes: Oscilloscope, suitable for detecting whether there is reverse power transmission in the power distribution network wires; A PLC controller is electrically connected to the oscilloscope, the sliding assembly and the cutting assembly respectively. The PLC controller is used to determine whether the electric wire is reversely transmitting electricity based on the detection signal received from the oscilloscope, and controls the operation of the sliding assembly and the cutting assembly respectively.

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