Pay-off device for low-voltage operation of power distribution of power grid

Abstract

The invention discloses a pay-off device for low-voltage operation of power distribution of a power grid, and belongs to the technical field of cable equipment.The pay-off device comprises a supporting assembly, a pay-off assembly and a guiding assembly.The pay-off assembly is arranged on the supporting assembly and comprises a winding roller, a cable can be wound around the periphery of the winding roller, and the guiding assembly is arranged on the supporting assembly; the winding roller can rotate around the axis of the winding roller so as to release or wind the cable. The guide assembly comprises a moving mechanism and two guide rollers which are oppositely arranged, the moving mechanism is arranged on the supporting assembly and can drive the guide rollers to move in the horizontal direction and the vertical direction, the two guide rollers can get close to each other or get away from each other, the guide rollers can rotate in the circumferential direction of the guide rollers, and limiting grooves are formed in the guide rollers; the cable can be clamped between the limiting grooves of the two guide rollers and move in the extending direction of the limiting grooves. Through cooperation of the supporting assembly, the pay-off assembly and the guiding assembly, the cable is effectively limited and guided, and it is guaranteed that the trend of the cable is accurate in the pay-off process.

Description

Technical Field

[0001] The present invention relates to the field of cable equipment technology, and in particular to a cable laying device for low-voltage operation of power distribution network Background Art

[0002] In power construction, communication wiring and various projects involving cable laying, the cable pay-off device can effectively release the cable from the cable drum to facilitate laying and installation.

[0003] Traditional cable pay-off devices have simple structures and single functions. They are usually just a fixed bracket with a rotatable shaft, which cannot effectively control the pay-off speed and tension. As a result, the cables may become loose, entangled or even knotted during the pay-off process, increasing the difficulty and time cost of construction. At the same time, due to the lack of precise braking and speed regulation mechanisms, the cable pay-off speed is easily unstable, affecting the construction quality. In addition, the existing cable pay-off devices lack adaptability to cables of different specifications and are difficult to meet the pay-off requirements of cables of various diameters and types. Summary of the invention

[0004] The object of the present invention is to provide a wire-laying device for low-voltage operation of power distribution network, so as to solve the technical problems existing in the prior art that the wire-laying device has poor adaptability and low control accuracy of the cable.

[0005] As conceived above, the technical solution adopted by the present invention is:

[0006] A wire-laying device for low-voltage operation of power distribution network, comprising:

[0007] Support components;

[0008] A wire-releasing assembly is arranged on the supporting assembly, the wire-releasing assembly comprises a wire-winding roller, the cable can be wound around the outer periphery of the wire-winding roller, and the wire-winding roller can rotate around its own axis to release or reel in the cable;

[0009] The guide assembly includes a moving mechanism and two guide rollers arranged opposite to each other. The moving mechanism is arranged on the support assembly. The moving mechanism can drive the guide rollers to move in the horizontal direction and the vertical direction. The two guide rollers can approach each other or move away from each other. The guide rollers can rotate along their own circumference. The guide rollers are provided with limiting grooves. The cable can be clamped between the limiting grooves of the two guide rollers and move along the extension direction of the limiting grooves.

[0010] Preferably, the moving mechanism includes a screw, a first motor and a slider, the screw extends along a first horizontal straight line direction, the motor shaft of the first motor is coaxially arranged with the screw, the first motor can drive the screw to rotate around its own axis, the slider is sleeved on the screw and threadedly connected to the screw, and the guide roller is connected to the slider.

[0011] Preferably, the moving mechanism also includes a bearing plate, a telescopic rod and a support frame, the bearing plate is arranged on the slider, the telescopic rod is arranged on the bearing plate, the telescopic rod extends in a vertical direction, the support frame is arranged at the telescopic end of the telescopic rod, and the guide roller is arranged on the support frame.

[0012] Preferably, the moving mechanism also includes a guide shaft and a guide sleeve arranged parallel to the telescopic rod, and the guide shaft is arranged on one of the slider and the supporting plate, and the guide sleeve is arranged on the other, and the guide sleeve is sleeved on the guide shaft and slidably connected to the guide shaft.

[0013] Preferably, a rotating member is provided between the sliding block and the supporting plate, and the rotating member can drive the supporting plate to rotate in a horizontal direction.

[0014] Preferably, the support frame is U-shaped, and a movable rod is respectively arranged on two opposite side walls of the support frame. The two movable rods are arranged opposite to each other, and the movable rods can be extended and retracted along their own axes. The guide rollers are arranged at the retractable ends of the movable rods.

[0015] Preferably, the support assembly includes a support base and a moving wheel, the line-releasing assembly and the guide assembly are arranged on the support base, and the moving wheel is arranged at the bottom of the support base and can drive the support base to move in a horizontal plane.

[0016] Preferably, the support assembly further includes two sets of positioning mechanisms, which are symmetrically arranged on both sides of the support seat, and the positioning mechanisms include:

[0017] A connecting plate, fixedly connected to the supporting seat and protruding from a side wall of the supporting seat;

[0018] A support rod extending in a vertical direction, one end of the support rod being arranged at the bottom of the connecting plate, and the other end of the support rod being able to extend and retract along its own axis;

[0019] The support plate is arranged at the other end of the support rod.

[0020] Preferably, a shock absorbing spring is arranged at the bottom of the support plate, and a flexible pad is arranged at one end of the shock absorbing spring away from the support plate.

[0021] Preferably, the wire-laying device for low-voltage operation of power distribution grid also includes an electrically connected control console, a transmitter and a receiver, the control console is arranged on the support assembly, the wire-laying assembly is provided with a receiver, the guide assembly is provided with a transmitter, and the receiver can receive the signal sent by the transmitter, detect the position of the guide assembly in real time, and transmit it to the control console.

[0022] Beneficial effects of the present invention:

[0023] The present invention proposes a pay-off device for low-voltage operation of power distribution network, and the winding roller can stably release and reel in the cable, effectively avoiding the problem of unstable pay-off caused by the simple structure of the traditional pay-off device. The moving mechanism can drive the guide roller to move in the horizontal direction or the vertical direction, so that the device can flexibly adjust the guide position according to the actual construction environment to adapt to different wiring requirements. The two guide rollers can move closer to or farther away from each other, which can not only adapt to cables of different widths, but also enhance the adaptability of the device to cables of different specifications. At the same time, the distance between the cable and the guide roller can be accurately controlled, thereby adjusting the direction and tension of the cable. The limiting groove opened on the guide roller can effectively limit and guide the cable, prevent the cable from becoming loose, entangled or even knotted during the pay-off process, and reduce the difficulty and time cost of construction. Moreover, the cable can move along the extension direction of the limiting groove, ensuring the accurate direction of the cable during the pay-off process, thereby improving the construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a first structural schematic diagram of a wire-laying device for low-voltage operation of power distribution network provided by an embodiment of the present invention;

[0025] Figure 2 is a second structural schematic diagram of a wire-laying device for low-voltage operation of power distribution network provided by an embodiment of the present invention;

[0026] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0027] Figure 4 It is a front view of a wire-laying device for low-voltage operation of power distribution network provided by an embodiment of the present invention;

[0028] Figure 5 It is a left view of a wire-laying device for low-voltage operation of power distribution network provided by an embodiment of the present invention;

[0029] Figure 6 It is a right view of a wire-laying device for low-voltage operation of power distribution network provided by an embodiment of the present invention;

[0030] Figure 7 is a partial structural schematic diagram of a moving mechanism provided by an embodiment of the present invention;

[0031] Figure 8 It is a partial structural schematic diagram of the positioning mechanism provided in an embodiment of the present invention.

[0032] In the figure:

[0033] 100. Cables;

[0034] 1. Support assembly; 11. Support seat; 12. Moving wheel; 13. Positioning mechanism; 131. Connecting plate; 132. Support rod; 133. Support plate; 134. Shock-absorbing spring; 135. Flexible pad;

[0035] 2. Pay-off assembly; 21. Winding roller; 22. Connecting frame; 23. Second motor;

[0036] 3. Guide assembly; 30. Moving mechanism; 301. Screw; 302. First motor; 303. Slider; 304. Mounting frame; 305. Loading plate; 306. Telescopic rod; 307. Support frame; 308. Guide shaft; 309. Guide sleeve; 310. Rotating member; 311. Movable rod; 312. Assembly seat; 32. Guide roller; 321. Limiting groove; 33. Guide block; 331. Arc groove;

[0037] 4. Control console; 41. Transmitter; 42. Receiver. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0039] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0042] See also Figures 1 to 8 The wire-releasing device for low-voltage operation of power distribution provided by the embodiment of the present invention comprises a support assembly 1, a wire-releasing assembly 2 and a guide assembly 3. Among them, the wire-releasing assembly 2 is arranged on the support assembly 1, and the wire-releasing assembly 2 comprises a winding roller 21, and the cable 100 can be wound around the outer periphery of the winding roller 21, and the winding roller 21 can rotate around its own axis to release or reel in the cable 100; the guide assembly 3 comprises a moving mechanism 30 and two guide rollers 32 arranged oppositely, and the moving mechanism 30 is arranged on the support assembly 1, and the moving mechanism 30 can drive the guide roller 32 to move in the horizontal direction and the vertical direction, and the two guide rollers 32 can approach or move away from each other, and the guide roller 32 can rotate along its own circumference, and a limiting groove 321 is provided on the guide roller 32, and the cable 100 can be clamped between the limiting grooves 321 of the two guide rollers 32, and move along the extension direction of the limiting groove 321.

[0043] The wire-releasing device proposed by the present invention, the winding roller 21 can stably release and reel in the cable 100, effectively avoiding the problem of unstable wire-releasing caused by the simple structure of the traditional wire-releasing device. The moving mechanism 30 can drive the guide roller 32 to move in the horizontal direction or the vertical direction, so that the device can flexibly adjust the guide position according to the actual construction environment and adapt to different wiring requirements. At the same time, the two guide rollers 32 can be close to or away from each other, which can not only adapt to cables 100 of different widths, but also enhance the adaptability of the device to cables 100 of different specifications. At the same time, the distance between the cable 100 and the guide roller 32 can be accurately controlled, thereby adjusting the direction and tension of the cable 100. The limiting groove 321 provided on the guide roller 32 can effectively limit and guide the cable 100, prevent the cable 100 from being loose, entangled or even knotted during the wire-releasing process, and reduce the difficulty and time cost of construction. Moreover, the cable 100 can move along the extension direction of the limiting groove 321, ensuring the accurate direction of the cable 100 during the wire-releasing process, thereby improving the construction quality.

[0044] The specific structure of the wire-laying device used for low-voltage operation of power distribution grid is described below.

[0045] The moving mechanism 30 is used to realize the movement process of the guide roller 32 in the horizontal direction and the vertical direction. In order to realize the movement of the guide roller 32 in the horizontal direction, the moving mechanism 30 includes a screw 301, a first motor 302 and a slider 303. The screw 301 extends along the first horizontal straight line direction. The motor shaft of the first motor 302 is coaxially arranged with the screw 301. The first motor 302 can drive the screw 301 to rotate around its own axis. The slider 303 is sleeved on the screw 301 and is threadedly connected to the screw 301. The guide roller 32 is connected to the slider 303. Through the transmission of the screw 301, the horizontal straight line movement of the slider 303 can be accurately realized, ensuring that the position adjustment of the guide roller 32 is accurate, so as to more accurately adapt to different wire laying requirements and improve the accuracy and quality of wire laying.

[0046] Specifically, the moving mechanism 30 also includes a mounting frame 304, which is arranged on the supporting assembly 1, and a rectangular space is formed inside the mounting frame 304. The two ends of the screw 301 are rotatably connected to the two opposite inner walls of the mounting frame 304 respectively. The first motor 302 is arranged on the mounting frame 304, and the motor shaft of the first motor 302 is coaxially connected to one end of the screw 301. When in use, the screw 301 connected thereto can be driven to rotate synchronously by driving the motor shaft to rotate. Since the slider 303 is threadedly connected to the screw 301, the slider 303 moves along the extension direction of the screw 301, thereby driving the guide roller 32 to move synchronously, and finally realizing the horizontal movement process of the guide roller 32.

[0047] In order to realize the movement of the guide roller 32 in the vertical direction, the moving mechanism 30 further includes a bearing plate 305, a telescopic rod 306 and a support frame 307. The bearing plate 305 is arranged on the slider 303, the telescopic rod 306 is arranged on the bearing plate 305, the telescopic rod 306 extends in the vertical direction, the support frame 307 is arranged at the telescopic end of the telescopic rod 306, and the guide roller 32 is arranged on the support frame 307. The bearing plate 305 provides a stable installation foundation for the telescopic rod 306, and the support frame 307 ensures the firmness of the installation of the guide roller 32. The guide roller 32 can be driven to move in the vertical direction by the extension and contraction of the telescopic rod 306, so as to realize the adjustment process of the guide roller 32.

[0048] The telescopic rod 306 is configured as an electric push rod, which is a conventional mechanical device in the art, and its working principle and specific structure are not described in detail here.

[0049] Specifically, the moving mechanism 30 also includes a guide shaft 308 and a guide sleeve 309 arranged in parallel with the telescopic rod 306. The guide shaft 308 is arranged on one of the slider 303 and the bearing plate 305, and the guide sleeve 309 is arranged on the other. The guide sleeve 309 is sleeved on the guide shaft 308 and is slidably connected with the guide shaft 308. When the telescopic rod 306 is extended and retracted to drive the guide roller 32 to move, the parallel guide shaft 308 and the guide sleeve 309 can provide additional guidance and support, ensuring that the guide roller 32 moves more smoothly and accurately in the vertical direction, reducing shaking and deviation, thereby improving the stability and accuracy of the cable 100 guidance. In addition, the guide shaft 308 and the guide sleeve 309 can share the lateral force and bending moment borne by the telescopic rod 306, reduce the burden of the telescopic rod 306, extend the service life of the telescopic rod 306, and reduce the maintenance cost of the device.

[0050] In this embodiment, a guide sleeve 309 is provided on the slider 303, and a guide shaft 308 is provided on the bearing plate 305, and the two correspond to each other, and two groups of guide sleeves 309 and guide shafts 308 are provided, which are symmetrically distributed on both sides of the telescopic rod 306, so that the force is balanced. In other embodiments, the guide shaft 308 may be provided on the slider 303, and the guide sleeve 309 may be provided on the bearing plate 305. In addition, multiple groups of guide sleeves 309 and guide shafts 308 may also be provided, which is not limited here.

[0051] See also Figure 7 In order to further improve the flexibility of the pay-off device, the moving mechanism 30 can not only drive the guide roller 32 to move in the horizontal and vertical directions, but also drive the guide roller 32 to rotate, so as to adjust the angle of the guide roller 32. Specifically, a rotating member 310 is provided between the slider 303 and the carrier plate 305, and the rotating member 310 can drive the carrier plate 305 to rotate in the horizontal direction. Through horizontal rotation, the direction of the cable 100 can be more accurately controlled, and the cable 100 can be prevented from being twisted or bent unnecessarily during the pay-off process, so as to ensure that the quality and performance of the cable 100 are not affected, so as to better adapt to the pay-off requirements of the cable 100 in different directions, and improve the flexibility and adaptability of the pay-off.

[0052] Among them, in this embodiment, the rotating member 310 uses an existing rotating motor, the base of the rotating motor is set on the slider 303, and the motor shaft of the rotating motor is connected to the bearing plate 305, so that by driving the motor shaft of the rotating motor to rotate, the bearing plate 305 can be driven to rotate synchronously, thereby driving the guide roller 32 indirectly connected thereto to rotate, and realizing the angle adjustment process of the guide roller 32. In other embodiments, the rotating member 310 can also use existing equipment such as a turntable bearing or a gear transmission mechanism, which will not be described in detail here.

[0053] The bearing plate 305 and the guide roller 32 are connected by a support frame 307. Specifically, the support frame 307 is U-shaped, and a movable rod 311 is respectively arranged on two side walls of the support frame 307 that are arranged opposite to each other. The two movable rods 311 are arranged opposite to each other, and the movable rods 311 can be extended and retracted along their own axis. The guide roller 32 is arranged at the telescopic end of the movable rod 311. The movable rod 311 can be extended and retracted along its own axis, so that the guide roller 32 can adjust its position more accurately, better adapt to cables 100 of different diameters, ensure that the cable 100 is always in an accurate guiding position during the release process, and improve the accuracy of the release. It can be quickly adjusted according to the real-time changes of the cable 100 (such as slight differences in the diameter of the cable 100), and the distance between the cable 100 and the guide roller 32 can be accurately controlled, so as to adjust the direction and tension of the cable 100, enhance the adaptability of the device to cables 100 of different specifications, and reduce the release problem caused by the change of the specifications of the cable 100.

[0054] Among them, the movable rod 311 is configured as an electric push rod, which is an existing mechanical device in the field. Its working principle and specific structure are not described here in detail.

[0055] Specifically, a mounting seat 312 is provided corresponding to each guide roller 32 . The mounting seat 312 is U-shaped. The bottom of the mounting seat 312 is connected to the telescopic end of the movable rod 311 . Two oppositely arranged side walls of the mounting seat 312 are rotatably connected to the two ends of the guide roller 32 .

[0056] In addition, a guide block 33 is provided on the support frame 307, and an arc-shaped groove 331 is opened in the middle position of the guide block 33. The cable 100 is inserted into the arc-shaped groove 331. The arc-shaped groove 331 is used to guide the direction of the cable 100 to ensure that the cable 100 remains stable and does not deviate during the cable laying process.

[0057] Regarding the pay-off assembly 2, a connecting frame 22 is provided on the support assembly 1, a winding roller 21 is rotatably provided on the connecting frame 22, a second motor 23 is provided on the connecting frame 22, and the motor shaft of the second motor 23 is coaxially provided with one end of the winding roller 21. In this embodiment, one end of the cable 100 is fixed at a specified position of the winding roller 21 to ensure that it will not be disengaged during the rotation process; the other end is freely led out for subsequent use or connection to corresponding equipment; when the pay-off operation is required, the winding roller 21 will start to rotate smoothly under the action of the second motor 23; as the winding roller 21 rotates, the cable 100 fixed thereon will gradually unwind from the roller body and be released smoothly along a predetermined path; this process continues until the required length of the cable 100 is reached or a specific pay-off task is completed. This design enables the rotation of the winding roller 21 to be directly driven by the second motor 23, thereby realizing the automatic control of the pay-off of the cable 100.

[0058] Regarding the support assembly 1, the support assembly 1 includes a support seat 11 and a moving wheel 12. The wire-releasing assembly 2 and the guide assembly 3 are arranged on the support seat 11. The moving wheel 12 is arranged at the bottom of the support seat 11 and can drive the support seat 11 to move in the horizontal plane. The support seat 11 can provide space and bearing for the arrangement of the wire-releasing assembly 2 and the guide assembly 3. The arrangement of the moving wheel 12 enables the entire wire-releasing device to be easily moved in the horizontal plane, which is convenient for flexibly changing the wire-releasing position in a larger construction area, and meets the cable-releasing requirements of different locations without the need for repeated installation and disassembly of the device.

[0059] Specifically, the support assembly 1 also includes two sets of positioning mechanisms 13, which are symmetrically arranged on both sides of the support seat 11, and the positioning mechanisms 13 include a connecting plate 131, a supporting rod 132 and a supporting plate 133. Among them, the connecting plate 131 is fixedly connected to the support seat 11 and protrudes from the side wall of the support seat 11; the supporting rod 132 extends in the vertical direction, one end of the supporting rod 132 is arranged at the bottom of the connecting plate 131, and the other end of the supporting rod 132 can be extended and retracted along its own axis; the supporting plate 133 is arranged at the other end of the supporting rod 132. When the wire-releasing device moves to the specified position, the positioning mechanisms 13 symmetrically arranged on both sides of the support seat 11 can firmly support the device on the ground, prevent the device from moving or shaking due to the tension of the cable 100 or external force during the wire-releasing process, and ensure the stability and accuracy of the wire-releasing work. The support rod 132 can be extended and retracted along its own axis, so that the support plate 133 can be adjusted according to the flatness of the ground, ensuring that each support plate 133 can be in close contact with the ground, thereby providing reliable support for the device and maintaining stability even on uneven construction ground.

[0060] In this embodiment, the support rod 132 can achieve fine adjustment of the support plate 133 in the vertical direction by telescoping; during the positioning process, the support plate 133 will accurately move to a predetermined position as the support rod 132 telescopes. The support rod 132 is configured as an electric push rod, which is an existing mechanical device in the art, and its working principle and specific structure are not described in detail here.

[0061] See also Figure 8 A shock absorbing spring 134 is provided at the bottom of the support plate 133, and a flexible pad 135 is provided at one end of the shock absorbing spring 134 away from the support plate 133. When the support plate 133 contacts the ground and is subjected to pressure, the shock absorbing spring 134 will be compressed and deformed accordingly, effectively absorbing the impact energy, thereby protecting the ground from damage; once the external pressure is released, the shock absorbing spring 134 will quickly and stably return to its original state, pushing the support plate 133 back to its initial position, thereby enhancing the stability and accuracy of the positioning process; the flexible pad 135 can prevent the support plate 133 from directly and rigidly contacting the ground, thereby reducing damage to the ground.

[0062] The flexible pad 135 may be a rubber pad or a silicone pad, etc., which is not limited here.

[0063] In addition, the wire-laying device for low-voltage operation of power distribution grid also includes an electrically connected console 4, a transmitter 41 and a receiver 42, the console 4 is arranged on the support component 1, the wire-laying component 2 is provided with a receiver 42, the guide component 3 is provided with a transmitter 41, and the receiver 42 can receive the signal sent by the transmitter 41, detect the position of the guide component 3 in real time, and transmit it to the console 4. The console 4 serves as an interactive interface between the operator and the wire-laying device, integrating various control buttons, display screens and other components; through these components, the operator can monitor various parameters of the wire-laying process in real time, such as the tension, speed, position, etc. of the cable 100, and make corresponding adjustments and controls as needed, thereby improving the intelligence and convenience of the wire-laying process.

[0064] In this embodiment, the transmitter 41 moves closely following the movement of the guide block 33, while the receiver 42 is firmly set on the connecting frame 22; this design enables the control to capture and analyze the intensity and direction changes of the signal emitted by the transmitter 41 in real time; accurately calculate the current position and direction of the support frame 307; ensure that the cable 100 can strictly follow the predetermined order and path during the release and recovery process to achieve uniform and orderly winding action; such a design not only improves the accuracy and efficiency of the operation, but also enhances the automation and reliability of the system.

[0065] Among them, the transmitter 41 uses an existing infrared transmitter, the receiver 42 uses an infrared receiver paired with it, and the control console 4 uses an existing programmable logic controller, all of which are existing devices in the field. Their working principles and specific structures are not described here.

[0066] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A wire-laying device for low-voltage operation of power distribution network, characterized in that: include: Support assembly (1); A wire-releasing assembly (2) is arranged on the supporting assembly (1), the wire-releasing assembly (2) comprises a wire-winding roller (21), the cable (100) can be wound around the outer periphery of the wire-winding roller (21), and the wire-winding roller (21) can rotate around its own axis to release or reel in the cable (100); The guide assembly (3) comprises a moving mechanism (30) and two guide rollers (32) arranged opposite to each other. The moving mechanism (30) is arranged on the support assembly (1). The moving mechanism (30) can drive the guide rollers (32) to move in the horizontal direction and the vertical direction. The two guide rollers (32) can approach each other or move away from each other. The guide rollers (32) can rotate along their own circumference. A limiting groove (321) is provided on the guide roller (32). The cable (100) can be clamped between the limiting grooves (321) of the two guide rollers (32) and move along the extension direction of the limiting groove (321).

2. The wire-laying device for low-voltage operation of power distribution network according to claim 1, characterized in that: The moving mechanism (30) comprises a screw (301), a first motor (302) and a slider (303); the screw (301) extends along a first horizontal straight line direction; the motor shaft of the first motor (302) is coaxially arranged with the screw (301); the first motor (302) can drive the screw (301) to rotate around its own axis; the slider (303) is sleeved on the screw (301) and is threadedly connected to the screw (301); and the guide roller (32) is connected to the slider (303).

3. The wire-laying device for low-voltage operation of power distribution network according to claim 2, characterized in that: The moving mechanism (30) further comprises a bearing plate (305), a telescopic rod (306) and a support frame (307); the bearing plate (305) is arranged on the slider (303); the telescopic rod (306) is arranged on the bearing plate (305); the telescopic rod (306) extends in a vertical direction; the support frame (307) is arranged at the telescopic end of the telescopic rod (306); and the guide roller (32) is arranged on the support frame (307).

4. The wire-laying device for low-voltage operation of power distribution network according to claim 3, characterized in that: The moving mechanism (30) further comprises a guide shaft (308) and a guide sleeve (309) which are arranged parallel to the telescopic rod (306); the guide shaft (308) is arranged on one of the slider (303) and the bearing plate (305), and the guide sleeve (309) is arranged on the other of the slider (303). The guide sleeve (309) is sleeved on the guide shaft (308) and is slidably connected to the guide shaft (308).

5. The wire-laying device for low-voltage operation of power distribution network according to claim 3, characterized in that: A rotating member (310) is provided between the sliding block (303) and the supporting plate (305), and the rotating member (310) can drive the supporting plate (305) to rotate in a horizontal direction.

6. The wire-laying device for low-voltage operation of power distribution network according to claim 3, characterized in that: The support frame (307) is U-shaped, and a movable rod (311) is respectively arranged on two oppositely arranged side walls of the support frame (307). The two movable rods (311) are arranged opposite to each other, and the movable rods (311) can be extended and retracted along their own axial direction. The guide roller (32) is arranged at the retractable end of the movable rod (311).

7. The wire-laying device for low-voltage operation of power distribution network according to any one of claims 1 to 6, characterized in that: The support assembly (1) comprises a support base (11) and a moving wheel (12); the line-releasing assembly (2) and the guide assembly (3) are arranged on the support base (11); the moving wheel (12) is arranged at the bottom of the support base (11) and can drive the support base (11) to move on a horizontal plane.

8. The wire-laying device for low-voltage operation of power distribution network according to claim 7, characterized in that: The support assembly (1) further comprises two sets of positioning mechanisms (13), wherein the positioning mechanisms (13) are symmetrically arranged on both sides of the support seat (11), and the positioning mechanisms (13) comprise: A connecting plate (131) fixedly connected to the supporting seat (11) and protruding from a side wall of the supporting seat (11); A support rod (132) extends in a vertical direction, one end of the support rod (132) is arranged at the bottom of the connecting plate (131), and the other end of the support rod (132) can be extended and retracted along its own axial direction; A support plate is arranged at the other end of the support rod (132).

9. The wire-laying device for low-voltage operation of power distribution network according to claim 8, characterized in that: A shock absorbing spring (134) is arranged at the bottom of the support plate, and a flexible pad (135) is arranged at one end of the shock absorbing spring (134) away from the support plate.

10. The wire-laying device for low-voltage operation of power distribution network according to any one of claims 1 to 6, characterized in that: The wire-laying device for low-voltage operation of power distribution network also includes an electrically connected control console (4), a transmitter (41) and a receiver (42), wherein the control console (4) is arranged on the support component (1), the receiver (42) is arranged on the wire-laying component (2), and the transmitter (41) is arranged on the guide component (3), and the receiver (42) is capable of receiving a signal emitted by the transmitter (41), detecting a position of the guide component (3) in real time, and transmitting the signal to the control console (4).

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