Parallel bunched cable strain clamp convenient to install

Abstract

The invention discloses a parallel bunched cable strain clamp convenient to install, and aims to overcome the defect that in the prior art, a parallel bunched cable strain clamp is inconvenient to use. The technical problem is solved through the following technical scheme that the device comprises a first clamping plate and a second clamping plate which are arranged in parallel, and the two sides of the first clamping plate and the two sides of the second clamping plate are connected through parallel connecting assemblies; clamping block assemblies are arranged on the opposite surfaces of the first clamping plate and the second clamping plate and are arranged in the first clamping plate and the second clamping plate in a sliding manner; a connecting assembly is arranged on the second clamping plate. Most of the parts are assembled in advance, so that the use is very convenient, and the trouble of assembling in the mounting process is saved; and the first clamping plate and the second clamping plate are always kept parallel, so that the clamping force applied to the parallel bunched cable is more uniform, and an insulating layer of the parallel bunched cable is prevented from being damaged due to overlarge local clamping force of the parallel bunched cable.

Description

Technical Field

[0001] The invention relates to the technical field of electric power hardware, and more particularly to a parallel clustered cable tension clamp which is convenient to install. Background Art

[0002] Insulated cables used in power transmission and distribution lines are increasingly using parallel bundled insulated cables. When using general tension clamps to fix bundled cables on utility poles, it is necessary to separate the cores of each wire and then fix them separately. This operation is complicated, requires high technical requirements, and is easy to damage the wires.

[0003] The Chinese patent publication number is CN209881349U, and the publication date is December 31, 2019. The name of the invention is a wedge-shaped strain clamp for bundled cables. The application discloses a strain clamp for bundled cables, which clamps the bundled cables by setting a conical pressure plate, and can be installed without dividing the parallel cables into individual conductors. However, it needs to assemble the parts one by one during use, which makes it very troublesome to use and reduces the efficiency of installation. Summary of the invention

[0004] The present invention overcomes the inconvenience of using the wire clamps of parallel bundled cables in the prior art, and provides a parallel bundled cable tension clamp that is easy to install. It is very convenient to install by setting an integral structure, and at the same time, it is able to play a parallel clamping role for the parallel bundled cables by setting two parallel clamping plates. In addition, the clamping blocks arranged in the clamping plates can slide, so that the clamping blocks on the two clamping plates can approach each other during the sliding process, so that the parallel bundled cables can be better clamped, and the parallel bundled cables can be prevented from loosening after long-term use.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a parallel bundled cable tension clamp that is easy to install, comprising: a first clamp and a second clamp arranged in parallel, the two sides of the first clamp and the second clamp are connected by a parallel connecting assembly; the first clamp and the second clamp are provided with clamp block assemblies on the opposite surfaces of the first clamp and the second clamp, and the clamp block assemblies are slidably arranged in the first clamp and the second clamp; and a connecting assembly is provided on the second clamp.

[0006] Since most of the parts in the invention are pre-assembled, it is very convenient to use and saves the trouble of assembly during the installation process; in addition, since the first clamping plate and the second clamping plate are always kept parallel, the support force on the parallel bundled cables can be more uniform, preventing the insulation layer of the parallel bundled cables from being damaged due to excessive local clamping force on the parallel bundled cables; and by providing a clamping block assembly, it can be clamped on both sides of the parallel bundled cables.

[0007] Preferably, the parallel connection assembly includes two parallel connecting rods respectively arranged on both sides of the first clamping plate and the second clamping plate, the two parallel connecting rods are arranged in parallel and the two ends of the parallel connecting rods are respectively rotatably arranged with the first clamping plate and the second clamping plate.

[0008] The two parallel connecting rods and the first clamping plate and the second clamping plate are connected to each other to form a parallelogram structure, so that the first clamping plate and the second clamping plate can remain parallel during the rotation process, so that they can be clamped in parallel on both sides of the parallel bundled cables, so that the force on both sides of the parallel bundled cables is more even.

[0009] Preferably, a concave cavity is provided in the opposite surfaces of the first clamping plate and the second clamping plate, and two groups of sliding grooves are respectively provided at both ends of the length direction of the concave cavity, and the sliding grooves are provided on both sides of the width direction of the concave cavity, and the two groups of sliding grooves form an "eight-shaped" from the center position of the concave cavity to both ends, and the opening of the "eight-shaped" faces the opening of the concave cavity; the clamping block assembly includes clamping blocks respectively arranged at both ends of the concave cavity, and sliding strips cooperating with the sliding grooves are provided on both sides of the clamping block, and the length of the sliding strips is less than the length of the sliding groove.

[0010] The "figure eight" slide groove allows the clamping blocks on the two clamping plates to move closer to each other during the sliding process, so that the parallel bundled cables can be better clamped and prevented from loosening after long-term use.

[0011] Preferably, a return spring is provided on one side of the clamping block close to the length direction of the concave cavity, and the return spring abuts between the clamping block and the end of the concave cavity.

[0012] The reset spring can push the clamping block to move toward the center of the cavity, so that the clamping block can be reset due to the thrust of the reset spring before installing the parallel bundled cables.

[0013] Preferably, a through opening is provided in the concave cavity between the two groups of slide grooves, and the clamping block assembly also includes an abutment limit block provided in the through opening, the abutment limit block includes an abutment plate and an abutment block, a plurality of mounting holes are provided through the abutment block in the width direction, abutment pins are provided at both ends of the mounting holes, and a push spring is provided between the two abutment pins; the two abutment pins abut against the clamping blocks on both sides respectively.

[0014] The abutment limit block is passed through the through opening so that the two sides of the abutment plate abut against the limit block, and the abutment block is set in the middle of the clamping block, so that the abutment pin in the abutment block abuts against the clamping blocks at both ends, and the abutment pins at both ends of the mounting hole abut against the clamping blocks at both ends respectively, so that the clamping block is pushed to move toward a hollow position away from the concave cavity, which plays a limiting role on the clamping block, so that the clamping block can maintain the clamping force to clamp on both sides of the parallel bundled cables.

[0015] Preferably, a connecting hole is provided through the abutting limit block.

[0016] The connection holes are provided to facilitate the fixing of the abutment limit block on the first clamping plate and the second clamping plate. The abutment limit block connected to the first clamping plate and the second clamping plate by bolts can also clamp the first clamping plate and the second clamping plate.

[0017] Preferably, limit blocks are arranged at both ends of the opening in the length direction, the limit blocks abut against the abutment plates, and the abutment blocks are arranged between the two limit blocks.

[0018] The limiting block abuts against the abutting plate, so that the abutting limiting block and the abutting plate can better cooperate with each other.

[0019] Preferably, mounting ears are provided on both sides of the first clamping plate, and mounting long grooves are provided on the mounting ears; limiting bolts are rotatably provided on both sides of the second clamping plate, and the limiting bolts are passed through the mounting long grooves.

[0020] By rotating the limiting nut, the first clamping plate and the second clamping plate can be clamped, which is very convenient to use.

[0021] Preferably, the connecting assembly includes a connecting block, a telescopic rod assembly and a mouth-shaped fixture arranged on the first splint; the connecting block is connected to one end of the telescopic rod assembly through a first universal joint, and the other end of the telescopic rod assembly is connected to the mouth-shaped fixture through a second universal joint.

[0022] Through the cooperation of the first universal joint, the second universal joint and the telescopic rod assembly, the parallel bundled cable tension clamp can be installed at any angle, which is very convenient to use. At the same time, the telescopic rod assembly is provided to make it possible to adjust the length of the telescopic rod. After the parallel bundled cable tension clamp is installed, the length of the telescopic rod assembly is shortened to tighten the fixed clamp.

[0023] Preferably, the telescopic rod assembly includes a central rod, a rotating rod is arranged at the middle position of the central rod; threads with opposite thread directions are arranged at both ends of the rotating rod, and threaded sleeve rods are arranged at both ends of the rotating rod.

[0024] By rotating the rotating rod, the overall length of the telescopic rod can be extended or shortened, which is very convenient to use.

[0025] Compared with the prior art, the present invention has the following beneficial effects: (1) Most parts are pre-assembled, which is very convenient to use and saves the trouble of assembly during the installation process; (2) The first clamping plate and the second clamping plate are arranged in parallel, so that the holding force on the parallel bundled cables is more uniform, thereby preventing the insulation layer of the parallel bundled cables from being damaged due to excessive local clamping force on the parallel bundled cables; (3) The "figure eight" sliding groove allows the clamping blocks on the two clamping plates to move closer to each other during the sliding process, so that the parallel bundled cables can be better clamped and prevented from loosening after long-term use; (4) The abutment limit block cooperates with the clamp block, so that the clamp block plays a role of abutment limit, further achieving the effect of preventing loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural diagram of the present invention; Figure 2 It is a three-dimensional structural diagram of the present invention from another angle; Figure 3 is an exploded view of the present invention; Figure 4 is an exploded view of the connection assembly of the present invention; Figure 5 It is a top view and a cross-sectional view of the cooperation between the first clamping plate, the clamping block and the abutting limit plate of the present invention; Figure 6 is a sectional view of the side direction of the present invention; Figure 7 is a cross-sectional view of a first splint of the present invention; In the figure: 1, first clamping plate, 11, mounting ear, 111, mounting long slot, 12, through hole; 2. Second clamping plate, 21. Limit bolt, 22. Limit nut, 31. Parallel connecting rod, 4. Connecting assembly, 41. Connecting block, 42. Telescopic rod assembly, 421. Center rod, 422. Rotating rod, 423. First set of rods, 424. Second set of rods, 43. Mouth-shaped fixer, 431. Rotating sheet, 432. Perforation, 44. First universal joint, 441. Connecting plate, 442. First rotating shaft, 443. Second rotating shaft, 45. Second universal joint; 5, concave cavity, 51, slide groove, 52, through opening, 521, abutment plate; 61. Clamping block, 611. Sliding bar, 612. Clamping groove, 62. Return spring, 63. Abutting limit block, 631. Abutting plate, 632. Abutting block, 633. Mounting hole, 634. Abutting pin, 635. Pushing spring, 636. Connecting hole. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings: Example 1: Reference Figures 1 to 7 As shown, a parallel bundled cable tension clamp that is easy to install includes: a first clamp plate 1 and a second clamp plate 2 arranged in parallel, the two sides of the first clamp plate and the second clamp plate are connected by a parallel connecting component; the opposite surfaces of the first clamp plate and the second clamp plate are provided with a clamp block component, and the clamp block component is slidably arranged in the first clamp plate and the second clamp plate; the first clamp plate and the second clamp plate have the same structure, and a connecting component 4 is arranged on the second clamp plate.

[0028] The parallel connection assembly includes two parallel connecting rods 31 respectively arranged on both sides of the first clamping plate and the second clamping plate, the two parallel connecting rods are arranged in parallel and the two ends of the parallel connecting rods are respectively arranged to rotate with the first clamping plate and the second clamping plate. The two parallel connecting rods and the first clamping plate and the second clamping plate are connected to each other to form a parallelogram structure, so that the first clamping plate and the second clamping plate can always remain parallel during the rotation process, so that they can be clamped in parallel on both sides of the parallel bundled cable, so that the forces on both sides of the parallel bundled cable are more uniform.

[0029] The first clamping plate is provided with mounting ears 11 on both sides, and a mounting long slot 111 is provided on the mounting ears along the length direction of the first clamping plate; the second clamping plate is rotatably provided with limit bolts 21 on both sides, the limit bolts are inserted into the mounting long slots, and the limit bolts are also provided with limit nuts 22. By rotating the limit nuts, the first clamping plate and the second clamping plate can be clamped, which is very convenient to use.

[0030] A cavity 5 is provided in the opposite surfaces of the first clamping plate and the second clamping plate, and two groups of slide grooves 51 are respectively provided at both ends of the length direction of the cavity. The slide grooves are provided on both sides of the width direction of the cavity, and the two groups of slide grooves form an "eight-shaped" shape from the center position of the cavity to both ends, and the opening of the "eight-shaped" shape faces the clamping plate on the other side; the clamping block assembly includes clamping blocks 61 respectively provided at both ends of the cavity, and slide bars 611 cooperating with the slide grooves are provided on both sides of the clamping block, and the length of the slide bar is less than the length of the slide groove, and the slide bar can slide in the slide groove.

[0031] A return spring 62 is arranged on one side of the clamp block close to the length direction of the cavity, and the return spring abuts between the clamp block and the end of the cavity. The return spring can push the clamp block to move toward the center of the cavity.

[0032] After the first clamping plate and the second clamping plate clamp the parallel bundled cables, the two clamping blocks are clamped on both sides of the parallel bundled cables respectively, clamping the parallel bundled cables. When the parallel bundled cables are subjected to tension, the parallel bundled cables will drive the clamping blocks to move, so that the clamping blocks move along the slide slots. During the movement of the clamping blocks, the two clamping blocks will gradually approach each other, so that the two clamping blocks clamp the parallel bundled cables tighter; effectively preventing the parallel bundled cables from loosening from the first clamping plate and the second clamping plate after long-term use.

[0033] In addition, in order to enhance the friction between the clamp block and the parallel bundled cables, a clamp groove 612 is provided on the clamp block, the clamp groove matches the parallel bundled cables, and a plurality of transverse ridges are provided along the length direction of the clamp groove to enhance the friction.

[0034] In addition, both the first clamping plate and the second clamping plate are provided with through holes 12, so that bolts can pass through the through holes and cooperate with nuts, thereby playing an auxiliary clamping role for the first clamping plate and the second clamping plate.

[0035] The connecting assembly includes a connecting block 41, a telescopic rod assembly 42 and a mouth-shaped fixture 43 arranged on the second clamping plate; the connecting block is connected to one end of the telescopic rod through a first universal joint 44, and the other end of the telescopic rod is connected to the mouth-shaped fixture through a second universal joint 45.

[0036] The telescopic rod assembly includes a central rod 421, a rotating rod 422 is arranged in the middle of the central rod, the rotating rod is arranged in a hexagonal prism shape, and the hexagonal rotating rod is convenient to rotate by a wrench; threads with opposite thread directions are arranged at both ends of the rotating rod, and threaded sleeve rods are arranged at both ends of the rotating rod, and a threaded hole is arranged at the center of the sleeve rod, and the sleeve rods are respectively a first sleeve rod 423 and a second sleeve rod 424. The thread directions of the two ends of the rotating rod are opposite, so by rotating the rotating rod, the overall length of the telescopic rod can be extended or shortened.

[0037] The first universal joint and the second universal joint have the same structure, both of which include a connecting plate 441, and a first rotating shaft 442 and a second rotating shaft 443 are rotatably arranged at both ends of the connecting plate, and the first rotating shaft and the second rotating shaft are perpendicular to each other.

[0038] The first rotating shaft of the first universal joint is rotatably connected to the connecting block, and the second rotating shaft of the first universal joint is rotatably connected to the first sleeve rod.

[0039] The first rotating shaft of the second universal joint is rotatably connected to the second set rod, and the second rotating shaft of the second universal joint is rotatably connected to the mouth-shaped fixture. The mouth-shaped fixture includes two rotating plates rotatably arranged at both ends of the second rotating shaft, and the ends of the rotating plates 431 are provided with through holes 432, and the bolts pass through the through holes of the two rotating plates and are connected with nuts.

[0040] The working principle of this embodiment is as follows: first connect the mouth-shaped fixture to the pole tower, pass the parallel bundled cable between the first clamp and the second clamp, then rotate the limit nut so that the limit nut pushes the mounting ear to move toward the second clamp. During the movement, the first clamp and the second clamp are always kept parallel, so that the first clamp and the second clamp are clamped on both sides of the parallel bundled cable, and the clamp block is better clamped on both sides of the parallel bundled cable; then use a wrench to rotate the rotating rod so that the sleeve rods at both ends are close to each other, so that the length of the telescopic rod is shortened, so that the parallel bundled cable tension clamp plays a role in tightening the parallel bundled cable. Since most of the parts are pre-assembled when used in this embodiment, it is very convenient to use, eliminating the trouble of assembly during the installation process; in addition, since the first clamp and the second clamp are always kept parallel, the support force on the parallel bundled cable can be more uniform.

[0041] Example 2: Reference Figures 1 to 7 As shown, a through opening 52 is provided in the concave cavity of the first clamping plate and the second clamping plate, and the through opening is provided between the two groups of sliding grooves. The clamping block assembly also includes an abutment limit block 63 provided in the through opening, and the abutment limit block includes an abutment plate 631 and an abutment block 632. A plurality of mounting holes 633 are provided through the width direction of the abutment block, and abutment pins 634 are provided at both ends of the mounting holes. A push spring 635 is provided between the two abutment pins, and the push spring pushes the abutment pins at both ends to abut against the clamping blocks at both ends, so that the clamping block moves toward a position away from the center of the concave cavity; the elastic force of the push spring is greater than the elastic force of the reset spring.

[0042] Limiting blocks 521 are provided at both ends of the length direction of the opening, and the limiting blocks abut against both sides of the abutting plate, and the abutting block is provided between the two limiting blocks. The abutting limiting block is provided with connecting holes 636 along its thickness direction; bolts pass through the connecting holes of the abutting limiting blocks of the first clamping plate and the second clamping plate, so that the two abutting limiting blocks are fixedly provided on the first clamping plate and the second clamping plate respectively.

[0043] In this embodiment, the working principle is as follows: after the parallel bundled cable tension clamp in Example 1 is installed, the abutment limit block is passed through the through opening so that the two sides of the abutment plate abut on the limit block, and the abutment block is set in the middle of the clamping block, so that the abutment pin in the abutment block abuts on the clamping blocks at both ends, and bolts are passed through the connecting holes to fix the abutment limit blocks on both sides of the first clamping plate and the second clamping plate; at this time, the abutment pins at both ends in the installation hole abut on the clamping blocks at both ends respectively, so that the clamping block is pushed to move toward the hollow position away from the concave cavity, which plays a role of limiting the clamping block, so that the clamping block can maintain the clamping force to clamp on both sides of the parallel bundled cable; in addition, the abutment limit block arranged on the first clamping plate and the second clamping plate through bolt connection can also play a clamping role on the first clamping plate and the second clamping plate.

[0044] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A parallel bundled cable tension clamp that is easy to install, characterized in that it includes: The first and second clamping plates are arranged in parallel, and the two sides of the first and second clamping plates are connected by a parallel connecting component; the opposite surfaces of the first and second clamping plates are provided with clamping block components, and the clamping block components are slidably arranged in the first and second clamping plates; and the second clamping plate is provided with a connecting component.

2. The easy-to-install parallel bundled cable tension clamp according to claim 1 is characterized in that: The parallel connection assembly comprises two parallel connecting rods respectively arranged on both sides of the first clamping plate and the second clamping plate. The two parallel connecting rods are arranged in parallel and the two ends of the parallel connecting rods are respectively rotatably arranged with the first clamping plate and the second clamping plate.

3. The easy-to-install parallel bundled cable tension clamp according to claim 1 is characterized in that: Concave cavities are arranged in the opposite surfaces of the first clamping plate and the second clamping plate, two groups of slide grooves are arranged at the two ends of the length direction of the concave cavity respectively, the slide grooves are arranged on both sides of the width direction of the concave cavity, and the two groups of slide grooves form an "eight-shaped" from the center position of the concave cavity to both ends, and the opening of the "eight-shaped" faces the opening of the concave cavity; the clamping block assembly includes clamping blocks respectively arranged at both ends of the concave cavity, and sliding strips cooperating with the sliding grooves are arranged on both sides of the clamping block, and the length of the sliding strips is less than the length of the sliding groove.

4. The easy-to-install parallel bundled cable tension clamp according to claim 3 is characterized in that: A return spring is arranged on one side of the clamping block close to the length direction of the concave cavity, and the return spring abuts between the clamping block and the end of the concave cavity.

5. The easy-to-install parallel bundled cable tension clamp according to claim 3 is characterized in that: A through opening is arranged in the concave cavity between the two groups of slide grooves, and the clamping block assembly also includes an abutment limit block arranged in the through opening, the abutment limit block includes an abutment plate and an abutment block, a plurality of mounting holes are arranged through the width direction of the abutment block, abutment pins are arranged at both ends of the mounting holes, and a push spring is arranged between the two abutment pins; the two abutment pins abut against the clamping blocks on both sides respectively.

6. The easy-to-install parallel bundled cable tension clamp according to claim 5 is characterized in that: A connecting hole is penetrated through the abutting limit block.

7. The easy-to-install parallel bundled cable tension clamp according to claim 5 is characterized in that: Limiting blocks are arranged at both ends of the length direction of the opening, the limiting blocks are in contact with the abutting plates, and the abutting blocks are arranged between the two limiting blocks.

8. The easy-to-install parallel bundled cable tension clamp according to any one of claims 1 to 7, characterized in that: Both sides of the first clamping plate are provided with mounting ears, and the mounting ears are provided with mounting long grooves; both sides of the second clamping plate are rotatably provided with limit bolts, and the limit bolts are passed through the mounting long grooves.

9. The easy-to-install parallel bundled cable tension clamp according to any one of claims 1 to 7, characterized in that: The connecting assembly comprises a connecting block, a telescopic rod assembly and a mouth-shaped fixture arranged on the first clamping plate; the connecting block is connected to one end of the telescopic rod assembly through a first universal joint, and the other end of the telescopic rod assembly is connected to the mouth-shaped fixture through a second universal joint.

10. The easy-to-install parallel bundled cable tension clamp according to claim 9 is characterized in that: The telescopic rod assembly comprises a central rod, a rotating rod is arranged in the middle of the central rod; threads with opposite thread directions are arranged at both ends of the rotating rod, and sleeve rods connected by threads are arranged at both ends of the rotating rod.

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