Cable pay-off device and method for distribution network engineering construction

Abstract

The invention relates to the field of distribution network engineering construction, in particular to a cable pay-off device and method for distribution network engineering construction.The cable pay-off device for distribution network engineering construction comprises a support and a cable roller rotationally installed on the support through two rotating shafts, and further comprises a disc body fixed to one rotating shaft, the other rotating shaft is connected with a power mechanism, and the power mechanism is connected with the cable pay-off device for distribution network engineering construction; a plurality of pulleys surrounding the tray body are movably arranged on the side part of the bracket; the ring body is fixed on the side part of the bracket, and an assembly plate connected with the pulley is movably arranged in the ring body; in the braking process, the pulley is matched with the protruding parts on the disc body to achieve buffering speed reduction of the wire roller, compared with buffering speed reduction achieved by regulating and controlling the applied braking force, the problem of large friction can be effectively avoided, and the situation that due to the fact that the inertia of the wire roller is large, the friction force borne by braking parts is large, the abrasion degree is increased rapidly after long-term use, and the service life of the wire roller is prolonged is prevented. And therefore, the personal safety of on-site construction personnel is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of distribution network engineering construction, and in particular to a cable laying-out device and method for distribution network engineering construction. Background Art

[0002] Distribution network construction is a critical step in power system development, encompassing planning, design, construction, and acceptance. It primarily involves the construction and renovation of lines, transformers, and switchgear within the distribution network. During construction, the heavy weight of cables (some of which are relatively thick) and the cable rollers create significant inertia, posing significant safety risks during braking.

[0003] Specifically, conventional braking methods usually stop the cable roller by applying a large braking force instantaneously. Although this has the advantages of strong braking force and fast response, this sudden braking can easily cause the cable to be subjected to a large impact force, causing local deformation, kinking, or even damage to the cable. This is especially true for some thinner or less flexible cables, causing braking mutation problems.

[0004] In response to this, some braking mechanisms will adjust the strength of the braking force applied during braking (i.e., increase the braking force temporarily) to achieve a gradual deceleration effect and avoid the hidden dangers caused by instantaneous braking. However, with this method, the braking parts (such as brake pads or brake discs) will generate a large amount of friction during the braking process, resulting in rapid wear of the parts, which increases the maintenance cost of the device. As the degree of wear of the brake parts accelerates, it is easy to cause brake failure, posing a hidden danger to the personal safety of on-site construction workers. Summary of the Invention

[0005] The object of the present invention is to provide a cable pay-out device and method for distribution network engineering construction, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A cable pay-out device for distribution network construction, comprising a bracket and a wire roller rotatably mounted on the bracket via two rotating shafts, and further comprising:

[0008] The disc is fixed on one of the rotating shafts, the other rotating shaft is connected to the power mechanism, and the side of the bracket is also movably provided with a plurality of pulleys surrounding the disc;

[0009] The ring body is fixed to the side of the bracket, and is movably provided with an assembly plate connected to the pulley. The assembly plate is also connected to a docking mechanism. When paying out the line, the power mechanism drives the line roller to rotate, and the assembly plate drives the pulley to perform a circular motion synchronized with the rotation of the disc body.

[0010] When the line roller is braked, the power mechanism stops, and the docking mechanism can lock the position of the assembly plate through multiple sets of limit mechanisms. The pulley cooperates with the disk to cause the line roller to slow down, and then the rotating shaft is braked by hydraulic pliers.

[0011] As a further solution of the present invention: a plurality of protrusions are formed on the disk body, and the distance between the outer wall of the protrusion and the center of the disk body gradually increases or decreases along the circumference of the disk body, the pulley abuts against the outer wall of the disk body, the inner wall of the ring body is provided with a guide groove, a guide block is slidably engaged in the guide groove, and the assembly plate is fixedly connected to the guide block.

[0012] As a further solution of the present invention: a recess is provided on the assembly plate, an engaging block is slidably provided in the recess, the pulley is installed on the engaging block, a guide shaft is also fixed in the recess, the guide shaft passes through the engaging block, and the engaging block is slidably connected to the guide shaft, a first spring is provided on the outer periphery of the guide shaft, and the two ends of the first spring are respectively connected to the inner wall of the recess and the engaging block.

[0013] As a further solution of the present invention: the docking mechanism includes a transverse axis slidably arranged on the assembly plate, the transverse axis is adapted to the rotating shaft, and the transverse axis can be driven by a driving member arranged on the ring body to slide relative to the assembly plate.

[0014] As a further solution of the present invention: the driving member includes a hydraulic cylinder hinged on the ring body and a transmission block hinged on the movable end of the hydraulic cylinder, and the transmission block is rotationally connected to the transverse axis.

[0015] As a further solution of the present invention: a cylindrical cavity adapted to the transverse axis is provided at one end of the rotating shaft facing the assembly plate, two strip-shaped protrusions are formed on the outer wall of the transverse axis, and two strip-shaped grooves adapted to the strip-shaped protrusions are provided on the inner wall of the cylindrical cavity.

[0016] As a further solution of the present invention: the limiting mechanism includes a support arm fixed on the ring body and a follower block slidably engaged on the support arm, a blocking member is provided on one side of the follower block, and a connecting rod is provided between the other side and the transmission block, and the two ends of the connecting rod are respectively hinged to the follower block and the transmission block.

[0017] As a further solution of the present invention: the blocking member includes a guide cylinder fixed to the follower block and a telescopic column slidingly engaged with the guide cylinder, the ring body is provided with a through hole for the telescopic column to pass through, and a second spring is also provided in the guide cylinder, one end of the second spring is connected to the inner wall of the guide cylinder, and the other end is connected to the head end of the telescopic column, and the tail end of the telescopic column is provided with a ball.

[0018] As a further solution of the present invention: the bracket is also provided with a cable guiding structure, including a guide plate fixed on the bracket, the length direction of the guide plate is parallel to the axial direction of the wire roller, a slider is slidably engaged on the guide plate, and two guide wheels are rotatably provided on the slider, and the cable is pulled out from the wire roller and passes through between the two guide wheels.

[0019] As a further solution of the present invention: a cable laying method for distribution network construction, using the above-mentioned laying device, comprises the following steps:

[0020] Step 1: The power mechanism works to drive the wire roller to rotate, so that the cable is released from the wire roller, and the pulley makes a circular motion synchronous with the rotation of the disk, while the pulley and the disk remain relatively stationary;

[0021] Step 2: After the wire is paid off, the power mechanism stops working, the connection between the docking mechanism and the rotating shaft is terminated, the assembly plate is locked, and the pulley cooperates with the disc body to cause the wire roller to slow down;

[0022] Step three: brake and lock the rotating shaft using hydraulic pliers.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] During braking, the present application can utilize the pulley to buffer and decelerate the wire roller. Compared with the existing braking method (which stops the wire roller by applying a large braking force instantaneously), it can effectively prevent the cable from being subjected to a large impact force due to sudden braking, which may cause local deformation, kinking, or even damage to the cable. This is especially true for some thin or less flexible cables. The stability and reliability of the braking process are ensured, and a series of disadvantages caused by sudden braking problems are avoided.

[0025] Specifically, when paying out the line, the pulley can move synchronously with the drum body, and the two remain relatively stationary. The pulley can be in the braking position and wait for braking at any time; when the line is paid out and braking is completed, the power mechanism stops driving the line roller, the line roller rotates by inertia, the pulley and the drum body move relative to each other, the pulley and the drum body cooperate to decelerate, and then cooperate with the hydraulic clamp to lock, completing the braking process;

[0026] During braking, the pulley and the raised portion on the disc body cooperate to achieve buffer deceleration of the line roller. Compared with achieving buffer deceleration by adjusting the applied braking force, this can effectively ensure the stability of the braking process, avoid the problem of large amounts of friction, and prevent the problem of brake failure caused by the large inertia of the line roller and the large friction on the brake parts after long-term use, which will lead to rapid wear. This ensures the personal safety of on-site construction workers and effectively reduces the maintenance cost of the device.

[0027] In addition, by setting up a cable guiding structure on the bracket, the cables can be effectively guided and standardized, effectively ensuring that the cables are always pulled out along the correct path, avoiding contact or interference with other components during the cable release process, thereby effectively preventing the cables from being entangled and knotted, and improving the smoothness and efficiency of cable release. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The present invention is an axonometric drawing of an embodiment of a cable pay-out device for distribution network construction.

[0029] Figure 2 The present invention is a structural schematic diagram of an embodiment of a cable laying device for distribution network construction.

[0030] Figure 3 This is a structural schematic diagram from another angle of an embodiment of a cable laying device for distribution network construction.

[0031] Figure 4 This is a structural schematic diagram from another angle of an embodiment of a cable laying device for distribution network construction.

[0032] Figure 5 The present invention is a side view of an embodiment of a cable pay-out device for distribution network construction.

[0033] Figure 6 for Figure 3 A magnified view of the structure at point A in the middle.

[0034] Figure 7 This is a schematic structural diagram of a bracket in one embodiment of a cable laying device for distribution network construction.

[0035] Figure 8 This is an exploded diagram of the structure of the docking mechanism in one embodiment of a cable pay-out device for distribution network construction.

[0036] Figure 9 for Figure 8 Schematic diagram of the structure from another angle.

[0037] Figure 10 This is an exploded diagram of the structure of the limiting mechanism in one embodiment of a cable pay-out device for distribution network construction.

[0038] Figure 11 for Figure 10 A magnified view of the structure at point B.

[0039] In the figure: 1. bracket; 2. line roller; 3. driving motor; 4. guide plate; 5. slider; 501. guide wheel; 6. disk body; 601. protrusion; 7. rotating shaft; 701. strip groove; 8. ring body; 801. support arm; 802. through hole; 9. guide block; 10. assembly plate; 11. guide shaft; 12. first spring; 13. hydraulic cylinder; 14. fitting block; 15. pulley; 16. transmission block; 17. horizontal axis; 1701. strip protrusion; 18. second spring; 19. connecting rod; 20. telescopic column; 2001. ball bearing; 21. follower block; 22. guide cylinder. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0042] See also Figures 1-11 In an embodiment of the present invention, a cable pay-out device for distribution network construction includes a bracket 1 and a wire roller 2 rotatably mounted on the bracket 1 via two rotating shafts 7, and further includes:

[0043] The disc 6 is fixed on one of the rotating shafts 7. The other rotating shaft 7 is connected to a power mechanism. The side of the bracket 1 is also movably provided with a plurality of pulleys 15 surrounding the disc 6.

[0044] The ring body 8 is fixed to the side of the bracket 1, and is movably provided with an assembly plate 10 connected to the pulley 15. The assembly plate 10 is also connected to a docking mechanism. When paying out the line, the power mechanism drives the line roller 2 to rotate, and the assembly plate 10 drives the pulley 15 to perform a circular motion synchronized with the rotation of the disc 6.

[0045] When the line roller 2 is braked, the power mechanism stops, and the docking mechanism can lock the position of the assembly plate 10 through multiple sets of limiting mechanisms. The pulley 15 cooperates with the disk 6 to cause the line roller 2 to slow down, and then the rotating shaft 7 is braked by the hydraulic clamp.

[0046] Specifically, the two rotating shafts 7 are rotatably mounted on both sides of the bracket 1, and the central axes of the two coincide with each other. During the construction of the distribution network project, the wire roller 2 with the cable wound thereon is fixed between the two rotating shafts 7.

[0047] Secondly, the power mechanism includes a drive motor 3 mounted on the bracket 1, the output shaft of the drive motor 3 is connected to the rotating shaft 7 through a transmission belt, and is used to drive the line roller 2 to rotate, so that the line roller 2 performs the line pay-off action;

[0048] It should also be emphasized that the hydraulic pliers (not shown in the figure) braking is an application of existing technology. When the line roller 2 is decelerated, the hydraulic pliers directly clamp the rotating shaft 7, so that the line roller 2 can be locked, completing the braking process of the line roller 2.

[0049] Specifically, when paying out the wire, the drive motor 3 works to drive the wire roller 2 to rotate, and the wire wound on the wire roller 2 is released. At the same time, the disc 6 rotates synchronously with the wire roller 2, the docking mechanism is in a docking state with the rotating shaft 7, the assembly plate 10 rotates in the ring body 8 (the ring body 8 is concentric with the rotating shaft 7 and the wire roller 2), and the pulley 15 performs a circular motion and remains relatively stationary with the disc 6.

[0050] After the line is paid off and the line roller 2 needs to be braked, the drive motor 3 stops working. Due to the large weight of the line roller 2 and the cable, the line roller 2 continues to rotate under the action of inertia. At this time, the docking mechanism works and the docking state with the rotating shaft 7 is terminated. Then, the limiting mechanism locks the position of the assembly plate 10, that is, the pulley 15 remains stationary. As the line roller 2 and the disk body 6 continue to rotate under the action of inertia, the pulley 15 cooperates with the disk body 6, and the disk body 6 will cause the pulley 15 to give way in the radial direction of the ring body 8. Therefore, the pulley 15 effectively decelerates the disk body 6 and the line roller 2, and cooperates with the hydraulic pliers to make the braking process of the line roller 2 divided into two stages. The first stage uses the pulley 15 for deceleration, and the second stage uses the hydraulic pliers to lock the line roller 2 to complete the braking process.

[0051] Please refer again Figure 8 A plurality of protrusions 601 are formed on the disk body 6, and the distance between the outer wall of the protrusion 601 and the center of the disk body 6 gradually increases or decreases along the circumference of the disk body 6. The pulley 15 abuts against the outer wall of the disk body 6, and the inner wall of the ring body 8 is provided with a guide groove, in which a guide block 9 is slidably engaged, and the assembly plate 10 is fixedly connected to the guide block 9.

[0052] Furthermore, the guide block 9 is slidably engaged with the inner wall of the ring body 8, providing a guide for the rotation of the assembly plate 10 and the circumferential motion of the pulley 15. When paying out the line, the rotating shaft 7 can drive the assembly plate 10 to rotate in the ring body 8 through the docking mechanism, so that the assembly plate 10 can drive the pulley 15 to perform a circular motion synchronized with the rotation of the disc body 6. The pulley 15 and the disc body 6 can both remain stationary, ensuring that during the pay-out process, the pulley 15 is always at the lowest point of the protrusion 601 (i.e., the end with the smallest distance from the center of the disc body 6);

[0053] During braking, the position of the assembly plate 10 is locked. Under the action of inertia, the protrusion 601 acts on the pulley 15, thereby causing the pulley 15 to give way along the length direction of the assembly plate 10 (i.e., the radial direction of the ring body 8). The pulley 15 can effectively buffer and decelerate the disc 6 (line roller 2);

[0054] Therefore, when braking, the present application can use the pulley 15 to buffer and decelerate the wire roller 2. Compared with the existing braking method (by instantly applying a large braking force to stop the rotation of the wire roller 2), it can effectively avoid the sudden braking that easily causes the cable to be subjected to a large impact force, causing the cable to be locally deformed, kinked or even damaged, especially for some thinner or less flexible cables, ensuring the stability and reliability of the braking process, and avoiding a series of disadvantages caused by sudden braking problems.

[0055] It should also be noted that during braking, the pulley 15 is used in conjunction with the raised portion 601 on the disc 6 to achieve buffered deceleration of the line roller 2. Compared with achieving buffered deceleration by adjusting the strength of the applied braking force, this can effectively avoid the problem of large amounts of friction, and prevent the problem of brake failure caused by the large inertia of the line roller 2 and the large friction force on the braking parts after long-term use, which leads to rapid wear. This provides protection for the personal safety of on-site construction personnel.

[0056] Please refer again Figure 8 and Figure 9 A recess is provided on the assembly plate 10, and a fitting block 14 is slidably provided in the recess. The pulley 15 is installed on the fitting block 14. A guide shaft 11 is also fixed in the recess. The guide shaft 11 passes through the fitting block 14, and the fitting block 14 is slidably connected to the guide shaft 11. A first spring 12 is sleeved on the outer periphery of the guide shaft 11, and the two ends of the first spring 12 are respectively connected to the inner wall of the recess and the fitting block 14.

[0057] During braking, after the docking state between the docking mechanism and the rotating shaft 7 is removed, the rotating shaft 7 can no longer directly drive the assembly plate 10 to rotate in the ring body 8. Accordingly, the line roller 2 continues to drive the disc 6 to rotate under the action of inertia, and then the protrusion 601 will act on the pulley 15, so that the pulley 15 gradually drives the engaging block 14 to give way. Specifically (with the attached Figure 5 For example), the line roller 2 and the disc 6 rotate clockwise, the pulley 15 and the engaging block 14 move away from the center of the ring body 8, and the first spring 12 is gradually compressed, thereby achieving the purpose of buffering and deceleration, ensuring that the braking process of the line roller 2 is stable, and avoiding a series of disadvantages caused by sudden braking problems.

[0058] It should be added that the first spring 12 is used to achieve buffering. In this regard, in specific implementation, the elastic force of the first spring 12 needs to be determined according to the size of the rotational inertia of the wire roller 2, and it is necessary to ensure that the first spring 12 has a sufficient elastic coefficient.

[0059] Preferably, a pressure sensor can be provided in the recess of the assembly plate 10, and the first spring 12 abuts against the pressure sensor. During the braking process, the pressure sensor can monitor the pressure. The greater the pressure, the greater the displacement of the pulley 15 by the protrusion 601. After reaching the preset value (that is, the rotation speed of the line roller 2 has been greatly reduced, and the hydraulic clamp can be used to directly lock the line roller 2 at the corresponding pressure value), the pressure sensor can send a control signal to the hydraulic clamp to enable the hydraulic clamp to complete the locking of the line roller 2, effectively avoiding excessive wear of the hydraulic clamp and ensuring that the hydraulic clamp is in good working condition.

[0060] Please refer again Figure 6 、 Figure 8 as well as Figure 9 The docking mechanism includes a transverse shaft 17 slidably mounted on the assembly plate 10. The transverse shaft 17 is adapted to the rotating shaft 7 and can be driven by a driving member mounted on the ring body 8 to slide relative to the assembly plate 10. The driving member includes a hydraulic cylinder 13 hinged to the ring body 8 and a transmission block 16 hinged to the movable end of the hydraulic cylinder 13. The transmission block 16 is rotatably connected to the transverse shaft 17. The end of the rotating shaft 7 facing the assembly plate 10 is provided with a cylindrical cavity adapted to the transverse shaft 17. The outer wall of the transverse shaft 17 is formed with two strip-shaped protrusions 1701, and the inner wall of the cylindrical cavity is provided with two strip-shaped grooves 701 adapted to the strip protrusions 1701.

[0061] In detail, the attached Figure 3For example, at this time, the end of the horizontal shaft 17 away from the transmission block 16 is located inside the cylindrical cavity, the power mechanism is working, and during the rotation and unwinding process of the line roller 2, the rotating shaft 7 can drive the horizontal shaft 17 to rotate through the strip groove 701 and the strip protrusion 1701, and the horizontal shaft 17 drives the assembly plate 10 to rotate in the ring body 8 through the strip protrusion 1701, so that the pulley 15 performs a circular motion and remains relatively stationary with the disk body 6 during the motion. The pulley 15 is always at the lowest point of the protrusion 601 (that is, the end with the smallest distance from the center of the disk body 6), so as to play an effective buffering and deceleration role during braking;

[0062] During braking, after the power mechanism stops, the movable end of the hydraulic cylinder 13 performs an extension action, thereby pushing the transmission block 16 to drive the horizontal shaft 17 to be withdrawn from the cylindrical cavity. As a result, the line roller 2 cannot directly drive the pulley 15 to perform circular motion through the rotating shaft 7. As the movable end of the hydraulic cylinder 13 continues to extend, the limiting mechanism locks the assembly plate 10, and the pulley 15 can begin to play a buffering and deceleration function.

[0063] Please refer again Figure 2 、 Figure 6 、 Figure 10 as well as Figure 11 The limiting mechanism includes a support arm 801 fixed to the ring body 8 and a follower block 21 slidably engaged with the support arm 801. A stopper is provided on one side of the follower block 21, and a connecting rod 19 is provided between the other side and the transmission block 16. The ends of the connecting rod 19 are hingedly connected to the follower block 21 and the transmission block 16, respectively. The stopper includes a guide cylinder 22 fixed to the follower block 21 and a telescopic column 20 slidably engaged with the guide cylinder 22. The ring body 8 is provided with a through hole 802 for the telescopic column 20 to pass through. A second spring 18 is also provided within the guide cylinder 22. One end of the second spring 18 is connected to the inner wall of the guide cylinder 22, and the other end is connected to the leading end of the telescopic column 20. A ball bearing 2001 is provided at the trailing end of the telescopic column 20.

[0064] When the transverse shaft 17 is withdrawn from the outside of the cylindrical cavity at the end of the rotating shaft 7, the transmission block 16 pulls the follower block 21 to slide along the length direction of the support arm 801 through the connecting rod 19, that is, the guide cylinder 22 and the telescopic column 20 move along the radial direction of the ring body 8 toward the center of the ring body 8;

[0065] It should be noted that before the transverse shaft 17 is withdrawn from the cylindrical cavity at the end of the rotating shaft 7, the telescopic column 20 does not penetrate the through hole 802. Subsequently, as the movable end of the hydraulic cylinder 13 continues to extend, the telescopic column 20 will penetrate the through hole 802, thereby enabling the telescopic column 20 to limit the guide block 9 (i.e., the assembly plate 10).

[0066] There are two situations:

[0067] In the first case, when the telescopic column 20 passes through the through hole 802, the guide block 9 is misaligned with the through hole 802, and the telescopic column 20 can smoothly pass through the through hole 802. The line roller 2 and the disc body 6 rotate by inertia, and the protrusion 601 drives the assembly plate 10 to continue rotating a certain angle in the ring body 8 through the pulley 15 until the guide block 9 abuts the telescopic column 20 extending into the ring body 8. Then, the telescopic column 20 can limit the guide block 9 (i.e., the assembly plate 10), the position of the pulley 15 is stabilized, and the first spring 12 begins to be used for buffering and deceleration.

[0068] In the second case, when the telescopic column 20 passes through the through hole 802, the guide block 9 just blocks the through hole 802, and then the ball 2001 acts on the guide block 9, the second spring 18 is compressed, and the protrusion 601 drives the assembly plate 10 to continue to rotate a certain angle in the ring body 8 through the pulley 15 until the guide block 9 passes the through hole 802, and the telescopic column 20 pops out from the guide cylinder 22, and then the assembly plate 10 is limited, the position of the pulley 15 is stabilized, and the braking stage of buffer deceleration is entered.

[0069] Please refer again Figure 4 and Figure 7 The bracket 1 is also provided with a cable guiding structure, including a guide plate 4 fixed on the bracket 1, the length direction of the guide plate 4 is parallel to the axial direction of the wire roller 2, a slider 5 is slidably engaged with the guide plate 4, and two guide wheels 501 are rotatably provided on the slider 5. The cable is pulled out from the wire roller 2 and passes through the two guide wheels 501.

[0070] Specifically, during construction, the position of the slider 5 on the guide plate 4 needs to be adjusted in advance so that the position of the guide wheel 501 is stable. Therefore, the cable can be effectively guided and standardized, and the cable can be effectively ensured to always be pulled out along the correct path, thereby avoiding contact or interference with other components during the pay-off process, thereby effectively preventing the cable from being entangled and knotted, and improving the smoothness and efficiency of the pay-off.

[0071] At the same time, this design can also be flexibly adjusted according to different pay-off requirements and working environments, such as changing the initial position of the guide wheel 501, adjusting the moving range of the guide wheel 501, etc., to meet various complex pay-off tasks and improve the versatility and flexibility of the device.

[0072] As another embodiment of the present invention, a cable laying method for distribution network construction is also proposed, using the cable laying device, comprising the following steps:

[0073] Step 1: The power mechanism works to drive the wire roller 2 to rotate, so that the cable is released from the wire roller 2, and the pulley 15 makes a circular motion synchronous with the rotation of the disk 6, and the pulley 15 and the disk 6 remain relatively stationary;

[0074] Step 2: After the wire is paid off, the power mechanism stops working, the connection between the docking mechanism and the rotating shaft 7 is terminated, the assembly plate 10 is locked, and the pulley 15 cooperates with the disc 6 to cause the wire roller 2 to slow down;

[0075] Step three: brake and lock the rotating shaft 7 using hydraulic pliers.

[0076] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0077] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A cable pay-out device for distribution network construction, comprising a bracket and a cable roller rotatably mounted on the bracket via two rotating shafts; It is characterized by: Also includes: The disc is fixed on one of the rotating shafts, the other rotating shaft is connected to the power mechanism, and the side of the bracket is also movably provided with a plurality of pulleys surrounding the disc; The ring body is fixed to the side of the bracket, and is movably provided with an assembly plate connected to the pulley. The assembly plate is also connected to a docking mechanism. When paying out the line, the power mechanism drives the line roller to rotate, and the assembly plate drives the pulley to perform a circular motion synchronized with the rotation of the disc body. When the line roller is braked, the power mechanism stops, and the docking mechanism can lock the position of the assembly plate through multiple sets of limit mechanisms. The pulley cooperates with the disk to cause the line roller to slow down, and then the rotating shaft is braked by hydraulic pliers.

2. A cable pay-out device for distribution network construction according to claim 1, characterized in that: A plurality of protrusions are formed on the disk body, and the distance between the outer wall of the protrusion and the center of the disk body gradually increases or decreases along the circumference of the disk body. The pulley abuts against the outer wall of the disk body, and the inner wall of the ring body is provided with a guide groove, and a guide block is slidably engaged in the guide groove, and the assembly plate is fixedly connected to the guide block.

3. A cable pay-out device for distribution network construction according to claim 1, characterized in that: A recess is provided on the assembly plate, and an engaging block is slidably provided in the recess. The pulley is mounted on the engaging block. A guide shaft is also fixed in the recess, and the guide shaft passes through the engaging block. The engaging block is slidably connected to the guide shaft. A first spring is sleeved on the outer periphery of the guide shaft, and the two ends of the first spring are respectively connected to the inner wall of the recess and the engaging block.

4. A cable pay-out device for distribution network construction according to claim 1, characterized in that: The docking mechanism includes a transverse shaft slidably arranged on the assembly plate, the transverse shaft is adapted to the rotating shaft, and the transverse shaft can be driven by a driving member arranged on the ring body to slide relative to the assembly plate.

5. A cable pay-out device for distribution network construction according to claim 4, characterized in that: The driving member includes a hydraulic cylinder hinged on the ring body and a transmission block hinged on the movable end of the hydraulic cylinder, and the transmission block is rotationally connected to the transverse axis.

6. A cable pay-out device for distribution network construction according to claim 5, characterized in that: One end of the rotating shaft facing the assembly plate is provided with a cylindrical cavity adapted to the transverse axis, the outer wall of the transverse axis is formed with two strip-shaped protrusions, and the inner wall of the cylindrical cavity is provided with two strip-shaped grooves adapted to the strip-shaped protrusions.

7. A cable pay-out device for distribution network construction according to claim 5, characterized in that: The limiting mechanism includes a support arm fixed on the ring body and a follower block slidably engaged on the support arm. A blocking member is provided on one side of the follower block, and a connecting rod is provided between the other side and the transmission block. The two ends of the connecting rod are respectively hinged to the follower block and the transmission block.

8. A cable pay-out device for distribution network construction according to claim 7, characterized in that: The blocking member includes a guide cylinder fixed to the follower block and a telescopic column slidably fitted with the guide cylinder. The ring body is provided with a through hole for the telescopic column to pass through. A second spring is also provided in the guide cylinder. One end of the second spring is connected to the inner wall of the guide cylinder, and the other end is connected to the head end of the telescopic column. A ball is provided at the tail end of the telescopic column.

9. A cable pay-out device for distribution network construction according to claim 1, characterized in that: The bracket is also provided with a cable guiding structure, including a guide plate fixed on the bracket, the length direction of the guide plate is parallel to the axial direction of the wire roller, a slider is slidably engaged with the guide plate, and two guide wheels are rotatably provided on the slider, and the cable is pulled out from the wire roller and passes through between the two guide wheels.

10. A cable laying method for distribution network construction, using the cable laying device according to claim 1, characterized in that: The following steps are involved: Step 1: The power mechanism works to drive the wire roller to rotate, so that the cable is released from the wire roller, and the pulley makes a circular motion synchronous with the rotation of the disk, while the pulley and the disk remain relatively stationary; Step 2: After the wire is paid off, the power mechanism stops working, the connection between the docking mechanism and the rotating shaft is terminated, the assembly plate is locked, and the pulley cooperates with the disc body to cause the wire roller to slow down; Step three: brake and lock the rotating shaft using hydraulic pliers.

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