Pay-off device for power transmission and transformation

Abstract

The invention provides a pay-off device for power transmission and transformation, and belongs to the technical field of cable construction, the pay-off device comprises a base, a bearing disc is rotatably arranged on the base, a positioning piece is arranged in the middle of the bearing disc, a plurality of rotating wheels distributed circumferentially are arranged at the bottom of the bearing disc, and a plurality of first mounting holes are formed in the base in the circumferential direction; a movable arm is arranged in the first mounting hole, a first tension spring is arranged at the end, close to the base, of the movable arm, a mounting groove is formed in the movable arm, a vertical rod is arranged in the mounting groove, a rotating roller is rotationally arranged at the top of the vertical rod, and a cable supporting frame used for supporting a cable is arranged on one side of the base. According to the device, a self-adaptive elastic pressure structure is adopted to apply uniform circumferential pressure to the cable roll, so that the cable roll and the bearing disc can rotate concentrically, paying-off is smoother, under the synergistic effect of the cable supporting frame, the situation that the cable loosens and slides to the position below the bearing disc due to inertia when paying-off is stopped is prevented, and operation stability and construction efficiency are improved.

Description

Technical Field

[0001] The present application relates to the field of cable construction technology, and in particular to a wire-laying device for power transmission and transformation. Background Art

[0002] Power transmission and transformation encompasses two parts: transmission and transformation. Transmission involves sending power from power plants to various power-consuming areas or substations via transmission lines. Transformation involves converting power to different voltage levels using equipment such as transformers to meet user needs. Cable laying is a crucial step in power transmission and transformation construction, and its quality directly impacts the stability and safety of power transmission.

[0003] When laying cables, two common types of equipment are vertical and horizontal pay-off devices. Vertical pay-off devices, placed perpendicular to the ground, occupy a relatively small footprint and can be arranged more compactly on the construction site. This makes them particularly suitable for locations with limited space but requiring extensive cable pay-off work, effectively improving space utilization.

[0004] Referring to the Chinese patent document entitled "A detachable vertical pay-off stand" with authorization announcement number CN221796535U, the invention comprises a base, a mounting base, a positioning rod vertically mounted on the base, and a fixing assembly on the mounting base. The invention can reduce the height of the cable reel, thus reducing the workload of workers when installing the reel. By providing a detachable positioning rod, the invention can reduce the height of the cable reel, thus reducing the workload of workers when installing the reel.

[0005] According to the above technical solution, when the cable is wound and unwound, the operator pulls the cable end to drive the cable reel to rotate to achieve cable unwinding. However, in actual applications, it is found that when the cable reel is placed on the pay-out frame, the cable reel axis often deviates from the center of the pay-out frame. The non-concentric rotation of the cable reel and the pay-out frame will cause inconsistent tension on various parts of the cable during the unwinding process. Excessive local force may cause the cable to be stretched and deformed, thereby affecting the performance and service life of the cable. Although a positioning rod is provided on the pay-out frame to limit the cable reel, it is subject to the difference in the hole size of cable reels of different specifications, and taking into account the convenience of assembling the positioning rod, in actual design, the diameter of the positioning rod is usually smaller than the inner diameter of the shaft hole. This will cause periodic contact friction between the cable reel and the positioning rod during the pay-out operation, causing rotational blockage. This will not only affect the efficiency of the pay-out, but may also cause uneven tension on the cable during the pay-out process, further exacerbating cable damage. Summary of the Invention

[0006] In view of this, the present application provides a wire-paying device for power transmission and transformation, which is mainly used to solve the problem that the cable reel is easily deflected when the wire-paying device for power transmission and transformation is used, affecting the wire-paying efficiency and easily causing cable damage.

[0007] In order to solve the above technical problems, the present application provides a wire-laying device for power transmission and transformation, including a base, a carrying plate rotatably arranged on the base, a positioning member is arranged in the middle of the carrying plate, and a plurality of circumferentially distributed rotating wheels are arranged at the bottom of the carrying plate. A plurality of first mounting holes are circumferentially arranged on the base, a movable arm is arranged inside the first mounting hole, a first tension spring is arranged at one end of the movable arm close to the base, a mounting groove is provided on the movable arm, a vertical pole is provided inside the mounting groove, and a roller is rotatably arranged on the top of the vertical pole; a wire support frame for supporting the cable is provided on one side of the base, a receiving groove is provided on the base, the wire support frame is hinged to the base through the receiving groove, and a limiting component for limiting the rotation of the wire support frame is provided on the base.

[0008] By adopting the above technical solution, when the pay-off device is not in operation, the movable arm, the vertical pole and the rotating roller are all stored inside the base, which is compact and easy to carry and transport. During operation, the movable arm is pulled out and the vertical pole is rotated out. The first tension spring drives the rotating roller to be close to the outside of the cable drum. The circumferential pressure makes it concentric with the bearing drum, thereby improving the stability of the cable roll rotation and avoiding periodic contact friction with the positioning parts. The wire support frame can lift the cable and reduce the wear and tear caused by contact with the ground. At the same time, it cooperates with the rotating roller to prevent the cable from loosening and falling when the pay-off stops, thereby reducing the difficulty of cable arrangement when not in operation. The device takes into account both storage convenience and operational stability, which is conducive to improving construction efficiency. At the same time, it is suitable for cable rolls of different sizes and can reduce the limitations of the device.

[0009] Optionally, a sleeve plate is provided on the vertical pole closest to the wire support frame, a connecting frame is movably provided on the sleeve plate, a fixed line roller and a movable line roller are provided on the connecting frame, a limiting roller is rotatably provided on the sleeve plate, a card slot is provided on the top of the limiting roller, a card block adapted to the card slot is provided on the bottom of the connecting frame, a second tension spring is provided between the sleeve plate and the connecting frame, and a first cross bar and a second cross bar are provided on the wire support frame.

[0010] By adopting the above technical solution, when paying out the cable, the cable passes around the first cross bar and the second cross bar in turn, and passes through the fixed wire roller and the movable wire roller. The connecting frame pulls the second tension spring and disengages the clamping block and the clamping slot. At this time, the limit roller can rotate. After the paying out stops, the cable loses tension. Under the action of the second tension spring, the clamping block and the clamping slot can be engaged, and the limit roller is locked, which can provide resistance to the cable reel, prevent the cable reel from continuing to rotate under the action of inertia, and further reduce the looseness of the cable.

[0011] Optionally, a third screw is provided on the connecting frame, and a connecting block threadably connected to the third screw is provided at the bottom of the movable linear roller.

[0012] By adopting the above technical solution and providing a movable wire roller with adjustable position, the distance between the two wire rollers can be adjusted according to the cable diameter, so as to maintain a good limiting effect.

[0013] Optionally, one-way bearings are provided at the bottoms of the fixed line roller and the movable line roller.

[0014] By adopting the above technical solution, the fixed wire roller and the movable wire roller can only rotate in one direction. After the wire pay-out stops, the cable can be clamped to prevent the cable from loosening due to retraction.

[0015] Optionally, the base is circumferentially provided with a plurality of second mounting holes, a support arm is provided inside the second mounting hole, a height-adjustable base plate is provided at the end of the support arm, a first socket and a second socket are provided on the support arm, and a plug plate compatible with the first socket and the second socket is provided on the base.

[0016] By adopting the above technical solution and setting up a retractable support arm, the volume of the device can be reduced when the line-laying operation is not in progress, making it more portable; when the line-laying operation is in progress, the support arm can be unfolded to increase the contact area between the base and the ground, thereby improving its stability.

[0017] Optionally, an end block is provided on the side of the support arm close to the base plate, a movable frame is provided inside the end block, the base plate is provided at the bottom of the movable frame, a first screw is rotatably connected to the middle of the movable frame, and the first screw is threadedly connected to the end block.

[0018] By adopting the above technical solution, the height of the base plate can be adjusted according to actual usage conditions, so that it can provide good support effect, is suitable for complex outdoor working environments, and is more convenient to use.

[0019] Optionally, the positioning member includes a plurality of support plates distributed in a circle, the top and bottom of the support plates are both sleeved with elastic rings, the middle of the supporting plate is threadedly connected to a second screw, the top of the second screw is rotatably connected to a push block, the side of the support plate close to the push block is inclined from top to bottom toward the side away from the push block, and a movable hole for moving the support plate is provided on the supporting plate.

[0020] By adopting the above technical solution, the positioning piece can change its diameter according to the axial hole of the cable roll. Without the assistance of external force, after placing the device at the bottom of the cable roll, the cable roll and the device can be connected more securely, avoiding separation of the two when flipping the cable roll, making the placement of the cable roll more convenient and labor-saving.

[0021] Optionally, one end of the first cross bar and the second cross bar away from the wire support frame is inclined upward.

[0022] By adopting the above technical solution, the first cross bar and the second cross bar with inclined ends can prevent the cables from slipping off.

[0023] Optionally, the limiting assembly includes a spring pin and a through hole provided on the base, and the spring pin and the through hole are adapted to each other.

[0024] Optionally, a scraper is provided at the bottom of the carrying plate, and the number and position of the scraper are adapted to the number and position of the rotating wheels.

[0025] By adopting the above technical solution, when the carrying plate rotates, the scraper can sweep away the debris that falls on the upper surface of the base, avoiding bumps when the wheel passes by, which is beneficial to improving the stability of the device during operation.

[0026] In summary, compared with the prior art, this application has at least one of the following beneficial technical effects: 1. The adaptive elastic pressure structure is used to apply uniform circumferential pressure to the cable reel, so that the cable reel and the carrier disc can rotate concentrically, avoiding the cable reel from rubbing against the positioning parts during pay-off, making the pay-off smoother and reducing damage to the cable during pay-off. Under the coordinated action of the cable support frame, the cable is prevented from loosening and sliding under the carrier disc due to inertia when the pay-off stops, reducing the difficulty of cable arrangement during non-operation and improving operation stability and construction efficiency.

[0027] 2. The cooperation between the wire support assembly and the limiting roller can not only reduce the contact between the cable and the ground and reduce ground wear, but also after the wire payout stops, the locked limiting roller can prevent the cable roll from continuing to rotate under the action of inertia. Combined with the locked wire roller, it can further reduce the looseness of the cable, making the wire payout construction more convenient and labor-saving.

[0028] 3. By setting a base with adjustable diameter and a telescopic limit structure, it can adapt to cable reels of different specifications, making the installation of the cable reel more convenient and labor-saving. While ensuring the stability of the cable release, it optimizes the structural space of the device and makes it more portable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of a wire-laying device for power transmission and transformation in the present application; Figure 2 This is a schematic diagram of the top view of a wire-laying device for power transmission and transformation in the present application; Figure 3 Schematic diagram of the three-dimensional structure of the pay-off frame and the connecting frame in this application; Figure 4 Schematic diagram of the cross-sectional structure of the limiting roller in this application; Figure 5 This is a partial cross-sectional structural diagram of the connecting frame and the limiting roller in this application; Figure 6 A schematic cross-sectional view of the positioning assembly in this application; Figure 7 This is a schematic diagram of a partial cross-sectional structure of the base in this application.

[0030] Explanation of reference numerals: 1. base; 11. first mounting hole; 12. support arm; 121. first insertion hole; 122. second insertion hole; 13. end block; 131. movable frame; 132. first screw; 133. bottom plate; 14. inserting plate; 15. second mounting hole; 2. carrying plate; 21. rotating wheel; 22. scraper; 3. positioning member; 31. supporting plate; 32. second screw; 33. pushing block; 34. elastic ring; 35. movable hole; 4. Movable arm; 41. Mounting slot; 42. Vertical pole; 43. Rotating roller; 44. First tension spring; 5. Wire support frame; 51. First cross bar; 52. Spring pin; 53. Through hole; 54. Receiving slot; 55. Second cross bar; 6. Sleeve plate; 61. Connecting frame; 62. Fixed line roller; 63. Movable line roller; 631. Connecting block; 64. Third screw; 65. Second tension spring; 66. Limiting roller; 67. Slot; 68. Block; 69. One-way bearing. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application Figure 1-Figure 7 , the technical solutions of the embodiments of the present application are clearly and completely described. Based on the described embodiments of the present application, all other embodiments obtained by ordinary technicians in this field fall within the scope of protection of this application.

[0032] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 6 This embodiment provides a wire-paying device for power transmission and transformation, comprising a base 1, a bearing, a positioning assembly, a wire support frame 5, and a limiting assembly. The bearing is rotatably mounted above the base 1, supporting a cable reel and performing rotary wire payout. The positioning assembly is circumferentially disposed on the outside of the base 1, applying circumferential pressure to maintain concentric alignment between the cable reel and the bearing. The base 1 is provided with a receiving groove 54, through which the wire support frame 5 is hingedly connected to the base 1 for supporting the cable. The limiting assembly is disposed on the base 1 to limit the rotation of the wire support frame 5.

[0033] Among them, reference Figure 1 、 Figure 2 and Figure 7 The supporting components include a supporting plate 2, a rotating wheel 21, and a positioning member 3. The supporting plate 2 is rotatably mounted on the base 1, the positioning member 3 is located in the middle of the supporting plate 2, and there are multiple rotating wheels 21, which are distributed circumferentially below the supporting plate 2 to increase the contact area between the supporting plate 2 and the base 1 and improve its stability during operation.

[0034] When paying out the wire, the cable reel is placed in the middle of the carrier disc 2. As the staff pulls the cable end, the cable reel and the carrier disc 2 rotate together, realizing continuous paying out operation.

[0035] Among them, reference Figure 1 、 Figure 2 and Figure 6 The positioning assembly includes a first mounting hole 11, a movable arm 4, a mounting slot 41, a vertical rod 42, a roller 43, and a first tension spring 44. The first mounting hole 11 is circumferentially arranged on the base 1, the first tension spring 44 is fixedly arranged inside the first mounting hole 11, the movable arm 4 is sleeved inside the first mounting hole 11, and the movable arm 4 is fixedly connected to the first tension spring 44. The mounting slot 41 is set on the upper surface of the movable arm 4, one end of the vertical rod 42 is hinged inside the mounting slot 41, and the maximum tilt angle of the vertical rod 42 is 90 degrees. The roller 43 is rotatably connected to one end of the vertical rod 42.

[0036] When the wire is not being paid out, the vertical rod 42 is accommodated in the mounting groove 41. Under the action of the first tension spring 44, the movable arm 4 is entirely accommodated in the first mounting hole 11, which can reduce the size of the device and make it more portable. When the wire is being paid out, one end of the movable arm 4 is pulled, and the first tension spring 44 is in a stretched state. When the mounting groove 41 is completely removed, the vertical rod 42 is flipped 90 degrees, and the movable arm 4 is released. Under the elastic force of the first tension spring 44, the roller 43 can be pressed against the cable reel. Similarly, the rollers 43 in other directions apply pressure to different directions of the cable reel, so that the cable reel and the carrier disk 2 can rotate concentrically. After the wire is paid out, the rollers 43 can form a circumferential enclosure for the cable reel to prevent the cable from loosening and sliding under the carrier disk 2 due to inertia, reducing the difficulty of cable arrangement when not in operation.

[0037] Among them, reference Figure 2 and Figure 3 The limiting assembly includes a spring pin 52 and a through hole 53. The through hole 53 is located above the hinge of the wire support frame 5 and the base 1, and the position and size of the spring pin 52 are evenly matched with the through hole 53.

[0038] When the wire support frame 5 is working, the spring pin 52 can limit the position of the wire support frame 5 to fix its position and prevent it from turning over; when the wire support frame 5 is in the folded state, the spring pin 52 can limit one side of the wire support frame 5 to keep it in the folded state.

[0039] In addition, refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5, the vertical rod 42 closest to the wire support frame 5 is provided with a sleeve plate 6, a connecting frame 61, a fixed line roller 62, a movable line roller 63, a second tension spring 65, a limiting roller 66, a card slot 67 and a block 68. The connecting frame 61 is movably sleeved on the sleeve plate 6, and the fixed line roller 62 and the movable line roller 63 are both arranged on the top of the connecting frame 61. The distance between the movable line roller 63 and the fixed line roller 62 can be adjusted according to the diameter of the cable. The second tension spring 65 is arranged between the sleeve plate 6 and the connecting frame 61. The limiting roller 66 is rotatably connected to the sleeve plate 6. There are multiple card slots 67, and the multiple card slots 67 are circumferentially distributed on the upper surface of the limiting roller 66. The block 68 is arranged on the connecting frame 61, and the block 68 is adapted to the card slot 67. Under the action of the second tension spring 65, the block 68 can be clamped into the card slot 67. At this time, the limiting roller 66 cannot rotate. On the contrary, the limiting roller 66 can rotate freely. The wire support frame 5 is provided with a first cross bar 51 and a second cross bar 55. The first cross bar 51 and the second cross bar 55 are located on both sides of the connecting frame 61, and the first cross bar 51 and the second cross bar 55 are both higher than the height of the fixed line roller 62 and the movable line roller 63. The first cross bar 51 and the second cross bar 55 are inclined upward away from one end of the wire support frame 5, which facilitates threading and prevents the cable from slipping.

[0040] The unrolled cable first winds around the top of the first crossbar 51, then passes through the fixed line roller 62 and the movable line roller 63, and finally passes through the top of the second crossbar 55, making the cable wavy. During the pay-off process, under the action of the tension on the cable, the cable drives the connecting frame 61 to move upward and stretches the second tension spring 65. At this time, the clamping block 68 moves out of the clamping slot 67. When the cable is paid out, the limit roller 66 can rotate and cooperate with the roller 43 in other positions to limit the cable reel without affecting the pay-off, preventing the cable reel from being eccentric and making the pay-off smoother. When the cable stops paying out, the cable end is not subject to tension. Under the action of the second tension spring 65, the clamping block 68 is stuck in the clamping slot 67. At this time, the limit roller 66 cannot rotate. The limit roller 66 provides rotational resistance for the cable reel, preventing the cable reel from continuing to rotate under the action of inertia, which can reduce the loosening of the cable. When the pay-off operation is stopped, there is no need for a dedicated person to be on duty to brake, which effectively reduces labor costs and improves the convenience of equipment operation.

[0041] Reference Figure 3 and Figure 5 A third screw 64 is provided on the connecting frame 61, and a connecting block 631 threadedly connected to the third screw 64 is provided at the bottom of the movable line roller 63, and the connecting block 631 is slidably connected to the connecting frame 61.

[0042] By rotating the third screw 64 , the connecting block 631 can slide along the connecting frame 61 , thereby changing the distance between the fixed line roller 62 and the movable line roller 63 .

[0043] Reference Figure 5The bottoms of the fixed line roller 62 and the movable line roller 63 are both provided with one-way bearings 69.

[0044] The fixed line roller 62 and the movable line roller 63 can rotate in one direction when paying out the line. After the paying out stops, the fixed line roller 62 and the movable line roller 63 can use friction to constrain the cable displacement to prevent the cable from loosening and falling under the action of gravity.

[0045] Reference Figure 1 、 Figure 2 and Figure 7 The base 1 is provided with a plurality of second mounting holes 15 in the circumferential direction, a support arm 12 is provided inside the second mounting hole 15, a height-adjustable bottom plate 133 is provided at the end of the support arm 12, a first socket 121 and a second socket 122 are provided on the support arm 12, and a plug-in plate 14 adapted to the first socket 121 and the second socket 122 is provided on the base 1.

[0046] The support arm 12 can be retracted into the second mounting hole 15, reducing the space occupied by the device and making it more portable. When laying out the wire, the support arm 12 can be extended to increase the contact area between the device and the ground, improving the stability of the device during use. The height-adjustable base plate 133 allows for optimal support in outdoor environments with uneven surfaces by simply adjusting the base plate 133 to the corresponding position.

[0047] Among them, reference Figure 1 、 Figure 2 and Figure 7 An end block 13 is provided on one side of the support arm 12 close to the bottom plate 133, and a movable frame 131 is provided inside the end block 13. The bottom plate 133 is set at the bottom of the movable frame 131, and the middle part of the movable frame 131 is rotatably connected to the first screw 132, which is threadedly connected to the end block 13.

[0048] The height of the movable frame 131 can be changed by rotating the first screw 132 , and the operation is simple and quick.

[0049] Reference Figure 1 、 Figure 2 and Figure 7 The positioning member 3 includes a plurality of support plates 31 distributed in a circle. The top and bottom of the support plates 31 are sleeved with elastic rings 34 for driving the support plates 31 to reset. The middle part of the supporting plate 2 is threadedly connected to the second screw rod 32, and the top of the second screw rod 32 is rotatably connected to the push block 33. The side of the support plate 31 close to the push block 33 is inclined from top to bottom toward the side away from the push block 33. The supporting plate 2 is provided with a movable hole 35 for moving the support plate 31.

[0050] Outdoors, without the assistance of large-scale lifting equipment, the cable reel needs to be laid horizontally, the positioning member 3 on the device inserted into the axial hole of the cable reel, and then the cable reel and the device are flipped 90 degrees to complete the installation of the cable reel. However, since the positioning member 3 is easy to loosen after being inserted into the cable reel, the device can easily separate from the cable reel under the action of gravity when flipping, requiring staff to hold it steady, which is inconvenient to operate and poses a major safety hazard. Rotating the second screw 32 causes the push block 33 to move upward and push the support plate 31 outward. The circumferential support plate 31 is used to clamp the cable reel, preventing the device from separating from the cable reel, making the installation of the cable reel more convenient and safer.

[0051] Reference Figure 1 and Figure 7 A scraper 22 is provided at the bottom of the carrying plate 2 , and the number and position of the scraper 22 are adapted to the number and position of the wheels 21 .

[0052] When the carrier plate 2 rotates, the scraper 22 can sweep away the debris that falls on the upper surface of the base 1, thereby preventing the wheel 21 from shaking when passing by, which is beneficial to improving the stability of the device during operation.

[0053] The implementation principle of the power transmission and transformation pay-out device in the embodiment of the present application is as follows: When the wire-laying operation is not in progress, the upright pole 42 and the rotating roller 43 are located in the mounting groove 41. The movable arm 4 is located in the first mounting hole 11 on the base 1 under the action of the first tension spring 44. The wire support frame 5 is folded above the carrier plate 2 and is limited by the spring pin 52. The support arm 12 is accommodated in the second mounting hole 15. The plugboard 14 is located in the first plug hole 121. At this time, the entire device is in a folded state, which is compact, saves storage space, and is easy to transport and carry. First, pull out the support arm 12 inside the second mounting hole 15, insert the plug plate 14 into the second socket 122 for limiting, rotate the first screw 132 so that the bottom plate 133 at the corresponding position can contact the ground, and adjust the base 1 to a horizontal state; after the cable roll is placed on the carrying disk 2, pull out the movable arm 4 inside the base 1, turn the vertical rod 42 out of the mounting groove 41, loosen the movable arm 4, and under the action of the first tension spring 44, the roller 43 contacts the outer side of the cable drum. Under the joint action of multiple rollers 43, circumferential pressure can be applied to the cable drum to limit the cable drum so that the cable drum is concentric with the carrying disk 2, thereby improving the stability of the cable drum during rotation and avoiding periodic contact and friction between the cable drum and the positioning member 3 during pay-off, thereby making the cable pay-off smoother and reducing the risk of cable damage.

[0054] When unwinding, the unrolled cable first passes over the top of the first crossbar 51, then passes through the fixed wire roller 62 and the movable wire roller 63, and finally passes through the top of the second crossbar 55, making the cable wavy. During the unwinding process, under the action of the tension on the cable, the cable drives the connecting frame 61 to move upward and stretches the second tension spring 65. At this time, the clamping block 68 moves out of the clamping slot 67. When the cable is unwinding, the limiting roller 66 can rotate and cooperate with the rotating roller 43 in other positions to limit the cable roll without affecting the unwinding, preventing the cable roll from being eccentric and making the unwinding smoother. When the cable stops unwinding, the cable end is not subjected to tension. Under the action of the second tension spring 65, the clamping block 68 is clamped into the clamping slot 67. At this time, the limiting roller 66 cannot rotate. The limiting roller 66 provides rotational resistance for the cable roll to prevent the cable roll from continuing to rotate under the action of inertia. In addition, the wire support frame 5 can raise the cable, which not only reduces the contact between the cable and the ground and reduces wear, but also reduces the looseness caused by the cable falling after the wire pay-out stops. Combined with the circumferential blocking of the roller 43, the loose cable is prevented from falling outside the cable reel, reducing the cable sorting process during non-working hours, which is conducive to improving construction efficiency.

[0055] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A wire-laying device for power transmission and transformation, comprising a base (1), a supporting plate (2) rotatably provided on the base (1), a positioning member (3) provided in the middle of the supporting plate (2), and a plurality of rotating wheels (21) distributed in a circumference provided at the bottom of the supporting plate (2), characterized in that: The base (1) is provided with a plurality of first mounting holes (11) in a circumferential direction, a movable arm (4) is provided inside the first mounting hole (11), a first tension spring (44) is provided at one end of the movable arm (4) close to the base (1), a mounting groove (41) is provided on the movable arm (4), a vertical rod (42) is provided inside the mounting groove (41), and a roller (43) is rotatably provided on the top of the vertical rod (42); A wire support frame (5) for supporting cables is provided on one side of the base (1); a receiving groove (54) is provided on the base (1); the wire support frame (5) is hinged to the base (1) via the receiving groove (54); and a limiting component for limiting the rotation of the wire support frame (5) is provided on the base (1).

2. The power transmission and transformation pay-out device according to claim 1, characterized in that: A sleeve plate (6) is provided on the vertical pole (42) closest to the wire support frame (5), a connecting frame (61) is movably provided on the sleeve plate (6), a fixed line roller (62) and a movable line roller (63) are provided on the connecting frame (61), a limiting roller (66) is rotatably provided on the sleeve plate (6), a card slot (67) is provided on the top of the limiting roller (66), a card block (68) adapted to the card slot (67) is provided on the bottom of the connecting frame (61), a second tension spring (65) is provided between the sleeve plate (6) and the connecting frame (61), and a first cross bar (51) and a second cross bar (55) are provided on the wire support frame (5).

3. The power transmission and transformation pay-out device according to claim 2, characterized in that: A third screw rod (64) is provided on the connecting frame (61), and a connecting block (631) threadedly connected to the third screw rod (64) is provided at the bottom of the movable line roller (63).

4. The power transmission and transformation pay-out device according to claim 3, characterized in that: The bottoms of the fixed line roller (62) and the movable line roller (63) are both provided with one-way bearings (69).

5. The power transmission and transformation pay-out device according to claim 2, characterized in that: The base (1) is provided with a plurality of second mounting holes (15) in a circumferential direction, a support arm (12) is provided inside the second mounting hole (15), a height-adjustable bottom plate (133) is provided at the end of the support arm (12), a first plug hole (121) and a second plug hole (122) are provided on the support arm (12), and a plug plate (14) adapted to the first plug hole (121) and the second plug hole (122) is provided on the base (1).

6. The power transmission and transformation pay-out device according to claim 5, characterized in that: An end block (13) is provided on one side of the support arm (12) close to the bottom plate (133), a movable frame (131) is provided in a movable sleeve inside the end block (13), the bottom plate (133) is provided at the bottom of the movable frame (131), a first screw rod (132) is rotatably connected to the middle of the movable frame (131), and the first screw rod (132) is threadedly connected to the end block (13).

7. The power transmission and transformation pay-out device according to claim 1, characterized in that: The positioning member (3) includes a plurality of support plates (31) distributed in a circumferential manner, and elastic rings (34) are sleeved on the top and bottom of the support plates (31). The middle part of the supporting plate (2) is threadedly connected to a second screw rod (32), and the top of the second screw rod (32) is rotatably connected to a push block (33). The side of the support plate (31) close to the push block (33) is inclined from top to bottom toward the side away from the push block (33), and a movable hole (35) for moving the support plate (31) is provided on the supporting plate (2).

8. The power transmission and transformation pay-out device according to claim 2, characterized in that: One end of the first crossbar (51) and the second crossbar (55) away from the wire support frame (5) is inclined upward.

9. The power transmission and transformation pay-out device according to claim 1, characterized in that: The limiting assembly comprises a spring pin (52) and a through hole (53) arranged on the base (1), and the spring pin (52) and the through hole (53) are adapted to each other.

10. The power transmission and transformation pay-out device according to claim 1, characterized in that: The bottom of the carrier plate (2) is provided with a scraper (22), and the number and position of the scraper (22) are adapted to the number and position of the wheels (21).

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