A cable laying and tensioning device for power transmission and transformation projects

Abstract

The present invention discloses a cable laying and tensioning device for power transmission and transformation projects, which relates to the technical field of cable installation. The present invention includes a bottom plate, and universal wheels are fixedly installed at the four corners of the bottom end of the bottom plate. On the left and right sides of the top end of the bottom plate, clamping plates are symmetrically and fixedly installed. A core shaft is fixedly installed between the tops of the clamping plates. A rotating cylinder is rotatably connected in a limited manner around the core shaft between the clamping plates. Partition plates are uniformly and fixedly installed around the rotating cylinder. A cable is wound between the partition plates around the rotating cylinder. A guiding component is fixedly installed at the top of the front side of the clamping plate. When the present invention is used for pulling and laying, the cable will not move frequently back and forth left and right, reducing the laying difficulty, being beneficial to the tensioning of the cable, and at the same time, the guiding of the cable is more stable, and it has a long service life. The cable can always remain tensioned during the pulling process, and there is no need for subsequent cumbersome cable tensioning operations during laying, improving the efficiency of cable laying.

Description

Technical Field

[0001] The present invention relates to the technical field of cable installation, and particularly relates to a cable laying and tensioning device for power transmission and transformation projects. Background Art

[0002] Power transmission and transformation projects are responsible for construction projects of transmission lines of various voltage levels, substation installation projects, cable and optical cable laying projects, and various types of microwave tower construction projects. Therefore, during the construction of power transmission and transformation projects, the installation of cables is a major part. During the cable installation and laying process, in order to ensure that the cable is in a tensioned state and does not have excess length to sag, a tensioning device needs to be equipped during the laying process.

[0003] However, the existing cable laying and tensioning devices for power transmission and transformation projects still have the following defects during use:

[0004] 1. During the packaging and winding process of existing cables, they are all wound layer by layer from the inside to the outside. Therefore, when pulling and laying the cable, the cable will swing frequently left and right around the outer periphery of the winding cylinder, which increases the difficulty of laying. At the same time, it is not conducive to the tensioned laying of the cable. Although a guiding component is now also set on the side where the cable is pulled, the frequent left and right reciprocating swing of the cable will also cause the guiding component to swing frequently left and right, increasing the accompanying difficulty and wear degree of the guiding component, reducing the guiding effect, and the service life of the guiding also needs to be improved.

[0005] 2. The existing cable laying and tensioning device can only perform further tensioning through manual operation when the cable becomes loose during the laying process, and cannot keep the cable in a certain tension during the laying process, making the cable laying and tensioning operation more cumbersome and reducing the efficiency of cable laying. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems that when the above-mentioned cable is pulled and laid, the cable will swing frequently left and right around the outer periphery of the winding cylinder, increasing the difficulty of laying, and it is not conducive to the tensioned laying of the cable. At the same time, the existing guiding component also needs to swing frequently left and right following the cable, and the guiding effect and service life both need to be improved. In addition, the cable cannot be kept in a certain tension during the laying process, making the subsequent tensioning operation more cumbersome and reducing the cable laying efficiency. The present invention provides a cable laying and tensioning device for power transmission and transformation projects.

[0007] The present invention specifically adopts the following technical solutions to achieve the above purpose:

[0008] A cable laying and tensioning device for power transmission and transformation projects, comprising a bottom plate. Universal wheels are fixedly installed at the four corners of the bottom end of the bottom plate. Clamping plates are symmetrically and fixedly installed on the left and right sides of the top end of the bottom plate. A core shaft is fixedly installed between the tops of the clamping plates. A rotating cylinder is circumferentially and rotationally connected with limited movement around the core shaft between the clamping plates. Partition plates are evenly and fixedly installed on the periphery of the rotating cylinder. A cable is wound between the partition plates on the periphery of the rotating cylinder. A guiding component is fixedly installed at the top of the front side of the clamping plate, and the guiding component is located in front of the partition plates. Elastic tensioning components are arranged between the left and right sides of the rotating cylinder and the clamping plates.

[0009] Further, the distance between adjacent partition plates is adapted to the diameter of the cable, so that the cable can be wound in a single strand between adjacent partition plates.

[0010] Further, notches are formed on the same side of the partition plates. The notches extend from the edges of the partition plates to the periphery of the rotating cylinder. The notches are used for the cable wound on both sides of the partition plates to cross, so that the whole cable can be alternately wound between the partition plates.

[0011] Further, the guiding component includes a mounting rod. The mounting rod is fixedly installed on the front side of the top of the clamping plate and in front of the partition plate. A horizontal sliding groove is formed at the top of the mounting rod. The sliding groove runs through the mounting rod from front to back. A slider is connected with limited movement inside the sliding groove. The upper and lower sides of the slider are elastically and slidably connected with limiting rods. Limiting grooves are evenly formed on the upper and lower sides of the top of the mounting rod. The limiting grooves are communicated with the sliding groove, and the limiting grooves are adapted to the limiting rods. Therefore, the limiting rods and the slider can be limited through the limiting grooves.

[0012] Further, a round hole running through from front to back is formed in the middle of the slider. The cable can pass through the round hole.

[0013] Further, the limiting grooves are aligned with the cable wound between the partition plates. Therefore, the slider can be limited to stay in front of the wound cable to guide the pulling of the cable.

[0014] Further, the elastic tensioning component includes a cylindrical cover. Cylindrical covers are symmetrically and fixedly installed on the left and right sides of the rotating cylinder. The cylindrical covers extend to the inner sides of the two clamping plates. Springs are evenly fixedly connected to the periphery of the inner sides of the cylindrical covers on the left and right sides of the rotating cylinder. Telescopic blocks are evenly connected with limited movement inside the cylindrical covers on the left and right sides. The number of the telescopic blocks on the left and right sides is the same as that of the springs. One end of the telescopic block located inside the cylindrical cover is fixedly connected with the spring, so that the telescopic block can elastically stretch and move. Extrusion blocks are evenly elastically and slidably connected to the inner sides of the adjacent parts of the rotating cylinder on the left and right sides. The number of the extrusion blocks on the left and right sides is the same as that of the telescopic blocks. The extrusion blocks are located outside the telescopic blocks.

[0015] Further, the outer side of the telescopic block is designed with a conical shape with symmetric grooves, and the adjacent sides of the telescopic block and the extrusion block are offset from each other, so that after the telescopic block contacts the extrusion block, elastic extrusion can occur. At the same time, after the extrusion force increases, the telescopic block can also elastically retract through the design of the grooves.

[0016] Further, the springs and telescopic blocks on the left and right sides are offset from each other, while the extrusion blocks on the left and right sides are designed symmetrically, so that during the rotation of the rotating cylinder, the extrusion blocks on the left and right sides can alternately act on the telescopic blocks, thereby enabling the rotating cylinder to always maintain reverse elastic potential energy.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. In the present invention, through the design of the partition plates evenly distributed on the periphery of the rotating cylinder, the cables can be wound one by one from left to right. Therefore, during the pulling and laying process, the cables will not move back and forth frequently from left to right. With the cooperation of the guiding assembly, the laying difficulty is reduced, which is beneficial to the tensioning of the cables. At the same time, it will not drive the sliders in the guiding assembly to move frequently from left to right, enabling more stable guiding, improving the guiding effect, and reducing the wear degree of the sliders, thus extending the service life of the guiding.

[0019] 2. In the present invention, through the design of the elastic tensioning assembly, the rotating cylinder can always maintain reverse elastic potential energy during the pulling process, so that the cables can always be kept taut during the pulling process, eliminating the need for subsequent cumbersome cable tightening operations during laying, and improving the efficiency of cable laying. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic three-dimensional structure of the present invention Figure 1 ;

[0021] Figure 2 is a schematic three-dimensional structure of the present invention Figure 2 ;

[0022] Figure 3 is a schematic three-dimensional structure diagram of a partial cross-section of the present invention;

[0023] Figure 4 is a schematic three-dimensional structure diagram of the installation of the partition plate of the present invention;

[0024] Figure 5 is a schematic three-dimensional structure diagram of the rotating cylinder of the present invention;

[0025] Figure 6 is a schematic three-dimensional structure diagram of the cable of the present invention;

[0026] Figure 7 is a schematic three-dimensional structure diagram of the cable and the guiding assembly of the present invention;

[0027] Figure 8 is a schematic perspective view of a partial cross-section of the cable and guiding component of the present invention;

[0028] Figure 9 is a schematic perspective view of the clamping plate and the rotating cylinder of the present invention Figure 1 ;

[0029] Figure 10 is a schematic perspective view of the clamping plate and the rotating cylinder of the present invention Figure 2 ;

[0030] Figure 11 is an exploded view of the partial three-dimensional structure of the clamping plate and the rotating cylinder of the present invention.

[0031] Reference numerals: 1, bottom plate; 2, universal wheel; 3, clamping plate; 4, core shaft; 5, rotating cylinder; 6, partition; 61, notch; 7, cable; 8, guiding component; 81, mounting rod; 82, sliding groove; 83, slider; 84, limiting rod; 85, limiting groove; 9, elastic tensioning component; 91, cylindrical cover; 92, spring; 93, telescopic block; 94, extrusion block. Detailed implementation manners

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0033] A cable laying and tensioning device for a power transmission and transformation project according to a preferred embodiment of the present invention will be elaborated in detail below. As Figures 1-4 , Figure 6 shown, a cable laying and tensioning device for a power transmission and transformation project includes a bottom plate 1. Universal wheels 2 are fixedly installed at the four corners of the bottom end of the bottom plate 1. Clamping plates 3 are symmetrically and fixedly installed on the left and right sides of the top end of the bottom plate 1. A core shaft 4 is fixedly installed between the tops of the clamping plates 3. A rotating cylinder 5 is rotatably connected in a limited manner around the core shaft 4 between the clamping plates 3. Partition plates 6 are evenly and fixedly installed around the rotating cylinder 5. A cable 7 is wound between the partition plates 6 around the rotating cylinder 5. The distance between adjacent partition plates 6 is adapted to the diameter of the cable 7, so that the cable 7 can be wound in a single strand between adjacent partition plates 6.

[0034] Notches 61 are formed on the same side of the partition plate 6. The notches 61 extend from the edge of the partition plate 6 to the periphery of the rotating cylinder 5. The notches 61 are used for the cable 7 wound on both sides of the partition plate 6 to cross, so that the entire cable 7 can be alternately wound between the partition plates 6.

[0035] As Figure 3 , Figures 7-8As shown in the figure, a guiding component 8 is fixedly installed at the top of the front side of the clamping plate 3, and the guiding component 8 is located at the front side of the partition plate 6. The guiding component 8 includes a mounting rod 81. The mounting rod 81 is fixedly installed at the front side of the top of the front side of the clamping plate 3 and the front side of the partition plate 6. A horizontal sliding groove 82 is formed at the top of the mounting rod 81. The sliding groove 82 runs through the mounting rod 81 from front to back. A slider 83 is slidably connected in the sliding groove 82 in a limited manner. A circular hole running through from front to back is formed in the middle of the slider 83, and the cable 7 can pass through the circular hole.

[0036] The upper and lower sides of the slider 83 are elastically slidably connected with limiting rods 84. The upper and lower sides of the top of the mounting rod 81 are evenly provided with limiting grooves 85. The limiting grooves 85 are communicated with the sliding groove 82, and the limiting grooves 85 are adapted to the limiting rods 84. Therefore, the limiting rods 84 and the slider 83 can be limited through the limiting grooves 85. The limiting grooves 85 are aligned with the cable 7 wound between the limiting grooves 85 and the partition plate 6. Therefore, the slider 83 can be limited to stay in front of the wound cable 7 to guide the pulling of the cable 7.

[0037] As Figures 3-5 、 Figures 9-11 As shown in the figure, elastic tensioning components 9 are arranged between the left and right sides of the rotating cylinder 5 and the clamping plate 3. The elastic tensioning components 9 include cylindrical covers 91. The left and right sides of the rotating cylinder 5 are symmetrically and fixedly installed with cylindrical covers 91. The cylindrical covers 91 extend to the inner sides of the two clamping plates 3. Springs 92 are evenly fixedly connected to the outer periphery of the inner sides of the cylindrical covers 91 on the left and right sides of the rotating cylinder 5. Telescopic blocks 93 are evenly slidably connected in a limited manner inside the cylindrical covers 91 on the left and right sides. The number of the telescopic blocks 93 on the left and right sides is the same as that of the springs 92, and one end of the telescopic block 93 located inside the cylindrical cover 91 is fixedly connected to the spring 92, so that the telescopic block 93 can elastically expand and contract.

[0038] Elastic limiting sliding connections are provided between the adjacent inner sides of the left and right rotating cylinders 5 and the extrusion blocks 94. The number of the extrusion blocks 94 on the left and right sides is the same as that of the telescopic blocks 93, and the extrusion blocks 94 are located outside the telescopic blocks 93.

[0039] The outer sides of the telescopic blocks 93 are designed with a conical shape with symmetric grooves, and the adjacent sides of the telescopic blocks 93 and the extrusion blocks 94 are mutually staggered. After the telescopic blocks 93 and the extrusion blocks 94 are in contact, elastic extrusion can be performed. At the same time, after the extrusion force increases, the telescopic blocks 93 can also elastically retract through the design of the grooves.

[0040] The springs 92 and the telescopic blocks 93 on the left and right sides are staggered, and the extrusion blocks 94 on the left and right sides are designed symmetrically. During the rotation of the rotating cylinder 5, the extrusion blocks 94 on the left and right sides can alternately act on the telescopic blocks 93, so that the rotating cylinder 5 always maintains reverse elastic potential energy.

[0041] The working principle of the present invention is:

[0042] When wrapping the cable 7, first wind the cable 7 between the side partitions 6. After winding to a certain thickness, then pass the cable 7 across to the partitions 6 on the adjacent side through the notch 61 and rewind. Then, sequentially complete the winding of the cable 7 between each partition 6 one by one, so as to complete the wrapping of the cable 7.

[0043] When pulling and laying is required, first utilize the sliding connection of the slider 83 in the top chute 82 of the mounting rod 81 to move the slider 83 to the front side between the partitions 6 where the outer end of the cable 7 is located. Then pass the cable 7 forward through the round hole in the middle of the slider 83. Therefore, when pulling and laying, it is possible to first centrally pull the single-strand cable 7 wound between the partitions 6 and use the slider 83 for stable guiding.

[0044] After the cable 7 between the partitions 6 is pulled out, through the design that the uniformly distributed limiting grooves 85 are aligned with the cable 7 wound between the partitions 6, in cooperation with the elastic expansion and contraction of the limiting rods 84 on the upper and lower sides of the slider 83 and the limiting cooperation between the limiting rods 84 and the limiting grooves 85, the slider 83 can be moved and limited to the front side of the cable 7 between the next partition 6, so as to pull the next strand of cable 7 and conduct guiding at the same time.

[0045] At the same time, utilize the design of the universal wheels 2 at the bottom end of the bottom plate 1. When the pulling position of the cable 7 changes, it is also possible to make the cable 7 aligned with the laying position by horizontally translating the bottom plate 1 and the clamping plate 3 left and right.

[0046] During the process of pulling the cable 7 to drive the rotating cylinder 5 to rotate, by using the cooperation between the telescopic blocks 93 and the extrusion blocks 94 on the left and right sides of the rotating cylinder 5, the extrusion block 94 elastically slidably connected to the inner side of the clamping plate 3 can give the telescopic block 93 a thrust in the direction opposite to the rotation direction, so that the cylindrical covers 91 and the rotating cylinder 5 have reverse elastic potential energy. Thus, the cable 7 can be kept taut during the pulling process. At the same time, by using the action of the telescopic block 93 and the spring 92 and in cooperation with the design of the symmetric grooves on the outer side of the telescopic block 93, when the acting force between the telescopic block 93 and the extrusion block 94 becomes larger, the telescopic block 93 can compress the spring 92 and retract, and then pass through the extrusion block 94, so that the rotating cylinder 5 can rotate forward and backward normally.

[0047] By using the staggered distribution of the springs 92 and the telescopic blocks 93 on the left and right sides, and the left-right symmetry design of the extrusion blocks 94 on the left and right sides, during the rotation of the rotating cylinder 5, the extrusion blocks 94 on the left and right sides can alternately act on the telescopic blocks 93, so that the rotating cylinder 5 always has reverse elastic potential energy, making the cable 7 always keep taut during the pulling process, and eliminating the need for subsequent cumbersome cable-tightening operations during laying, thus improving the laying efficiency of the cable 7.

[0048] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cable laying and tensioning device for power transmission and transformation projects, comprising a bottom plate (1), characterized in that, Four universal wheels (2) are fixedly installed at the four corners of the bottom end of the bottom plate (1). On the left and right sides of the top end of the bottom plate (1), clamping plates (3) are symmetrically and fixedly installed. A mandrel (4) is fixedly installed between the tops of the clamping plates (3). A rotating cylinder (5) is rotationally connected in a limited manner around the mandrel (4) between the clamping plates (3). A plurality of partition plates (6) are evenly fixedly installed on the periphery of the rotating cylinder (5). A cable (7) is wound between the partition plates (6) on the periphery of the rotating cylinder (5). A guiding component (8) is fixedly installed at the top of the front side of the clamping plate (3), and the guiding component (8) is located on the front side of the partition plate (6). Elastic tensioning components (9) are arranged between the left and right sides of the rotating cylinder (5) and the clamping plates (3); Among them, the distance between adjacent partition plates (6) is adapted to the diameter of the cable (7); The guiding component (8) includes: A mounting rod (81), and the mounting rod (81) is fixedly installed on the front side of the top of the clamping plate (3) and in front of the partition plate (6); A sliding groove (82), a horizontal sliding groove (82) is opened at the top of the mounting rod (81), and the sliding groove (82) penetrates through the mounting rod (81) from front to back; A sliding block (83), and the sliding block (83) is connected in a limited sliding manner inside the sliding groove (82); A limiting rod (84), and the limiting rod (84) is elastically slidably connected to the upper and lower sides of the sliding block (83); Limiting grooves (85), the upper and lower sides of the top of the mounting rod (81) are evenly provided with limiting grooves (85), the limiting grooves (85) are communicated with the sliding groove (82), and the limiting grooves (85) are adapted to the limiting rods (84).

2. The cable laying and tensioning device for power transmission and transformation projects according to claim 1, wherein A notch (61) is opened on the same side of the partition plate (6), and the notch (61) extends from the edge of the partition plate (6) to the periphery of the rotating cylinder (5), and the notch (61) is used for the cable (7) wound on both sides of the partition plate (6) to cross over; 3. The cable laying and tensioning device for power transmission and transformation projects according to claim 1, wherein, A circular hole penetrating through from front to back is opened in the middle of the sliding block (83), and the cable (7) can pass through the circular hole; 4. The cable laying and tensioning device for power transmission and transformation projects according to claim 1, characterized in that, The limiting groove (85) is aligned with the cable (7) wound between the partition plates (6); 5. The cable laying and tensioning device for power transmission and transformation projects according to claim 1, wherein The elastic tensioning component (9) includes: Cylindrical covers (91), cylindrical covers (91) are symmetrically and fixedly installed on the left and right sides of the rotating cylinder (5), and the cylindrical covers (91) extend to the inner sides of the two clamping plates (3); Springs (92), springs (92) are evenly fixedly connected to the outer periphery of the inner sides of the cylindrical covers (91) on the left and right sides of the rotating cylinder (5); Expansion blocks (93), expansion blocks (93) are evenly connected in a limited sliding manner inside the cylindrical covers (91) on the left and right sides. The number of the expansion blocks (93) on the left and right sides is the same as the number of the springs (92), and one end of the expansion block (93) located inside the cylindrical cover (91) is fixedly connected to the spring (92); Extrusion blocks (94), extrusion blocks (94) are evenly elastically and limitedly slidably connected to the inner sides of the adjacent parts of the rotating cylinder (5) on the left and right sides. The number of the extrusion blocks (94) on the left and right sides is the same as the number of the expansion blocks (93), and the extrusion blocks (94) are located outside the expansion blocks (93).

6. The cable laying and tensioning device for power transmission and transformation projects according to claim 5, characterized in that, The outer side of the telescopic block (93) is designed with a tapered shape with symmetric grooves, and the adjacent sides of the telescopic block (93) and the extrusion block (94) are offset from each other.

7. The cable laying for power transmission and transformation projects according to claim 5 Tightening device, characterized in that, The springs (92) and the telescopic blocks (93) on the left and right sides are distributed in a staggered manner, while the extrusion blocks (94) on the left and right sides are designed symmetrically.

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