Low-voltage cable tightener
The rotating assembly and driving components on the support plate enable the synchronous tensioning of multiple low-voltage cables, solving the problem of low efficiency in operating one cable at a time, ensuring the stability and parallelism of the cables, and avoiding wear and equipment damage.
Patent Information
- Application Number
- CN202511260603.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-04
- Publication Date
- 2025-11-04
AI Technical Summary
When laying low-voltage cables overhead, fixing each cable individually is inefficient, and uneven tension can easily lead to cable wear or equipment damage.
The system employs a rotating assembly and drive unit mounted on a support plate. By rotating the support tube and sleeve and extending the telescopic rod, multiple cables can be tensioned synchronously. The position of the support wheel is controlled by the guide hole to ensure the stability and parallelism of the cable inlet end.
It achieves efficient synchronous tensioning of multiple cables, avoids wear between cables and equipment, improves operational efficiency, and solves the problem of inconsistent initial tension.
Smart Images
Figure CN120896050A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of cable tightener, more particularly to a low-voltage cable tightener. BACKGROUND
[0002] Low-voltage cable overhead laying needs to be accurately controlled in sag: if the tension is insufficient, the cable swings under the action of wind, which easily leads to the damage of the insulation layer and the friction with the support; if the tension is too large, it may exceed the mechanical strength limit of the fittings, causing the falling, or making the tower bear additional lateral tension. The existing conventional tightener adopts a fixed pulley set single-point tensioning mode, and when facing multiple parallel laid cables, it needs to complete the cycle operation of "fixing-tensioning-dismantling" for each cable, which is low in efficiency. In view of this, we propose a low-voltage cable tightener. SUMMARY
[0003] The present application aims to provide a low-voltage cable tightener to solve the technical problem of low efficiency of fixing cables one by one in the prior art.
[0004] The present application provides a low-voltage cable tightener, which comprises a support plate, a plurality of fixed wheels are installed on the support plate, and a plurality of rotating assemblies are installed on the support plate. The rotating assembly comprises a support pipe in rotating connection with the support plate, a sleeve pipe is fixedly installed on the support pipe, telescopic rods are slidably connected at both ends of the sleeve pipe, support columns are fixedly installed at the ends of the telescopic rods, the support columns are inserted into and can slide along the guide holes of the support plate, and support wheels are rotatably connected to the support columns. A driving component, and the plurality of rotating assemblies are connected with the output end of the driving component. The driving component drives the support pipe to rotate and drives the sleeve pipe to rotate synchronously; the support columns are linearly constrained by the guide holes, so that the telescopic rods are forced to extend axially along the sleeve pipe, and the path of the cable around the two support wheels can be extended.
[0005] The present application can simultaneously control multiple rotating assemblies through one driving component, can perform synchronous tensioning operation on multiple parallel laid cables, can significantly improve the working efficiency, and can avoid the cumbersome process of traditional operation of each cable. The driving support pipe and the sleeve pipe are driven to rotate, and the telescopic rods are forced to extend outward by the linear constraint of the guide holes on the support columns, and this composite motion can significantly extend the path of the cable around the two support wheels, thereby efficiently increasing the tension of the cable. In the whole tensioning process, the motion trajectory of each support wheel is strictly limited in the predetermined straight line direction by the guide hole, so that the position of the incoming end of all cables remains stable, the original spacing and parallel relationship between the cables are not changed due to the tensioning operation, and interference, friction or wear between the cables or with the equipment is avoided.
[0006] As a further description of the above technical solution, the supporting pipe is rotationally connected with a push plate, a sliding groove is formed in the push plate, a first adjusting column is rotationally connected to the push plate, a first pawl is fixedly installed on the first adjusting column, a ratchet wheel is fixedly installed on the supporting pipe, and the first pawl is pulled tight by a first elastic member and is clamped with the ratchet wheel.
[0007] As a further description of the above technical solution, the driving component comprises a threaded rod rotationally connected with the supporting plate, a plurality of top blocks are threadedly matched with the threaded rod and are slidingly connected with the supporting plate, a top rod is fixedly installed at the bottom of the top block, and the top rod is inserted into the sliding groove and slides.
[0008] As a further description of the above technical solution, a plurality of fixing frames are fixedly installed on the supporting plate, a second adjusting column is rotationally connected with the fixing frame, a second pawl is fixedly installed on the second adjusting column, and the second pawl is pulled tight by a second elastic member and is clamped with the ratchet wheel.
[0009] As a further description of the above technical solution, a plurality of lifting assemblies are further included, each lifting assembly comprises a screw rod threadedly matched with the sleeve pipe, a lifting plate is rotationally connected with the screw rod, the lifting plate is slidingly connected with the supporting plate, a sliding block is slidingly connected with the lifting plate, the first adjusting column is movably inserted into the sliding block, a second shifting rod is fixedly installed on the sliding block, and the first adjusting column is movably inserted into the second shifting rod. A first guide groove and a first reversing groove are formed in the first adjusting column and are in communication with each other, and the second shifting rod is inserted into the first guide groove or the first reversing groove and slides.
[0010] As a further description of the above technical solution, a second guide groove and a second reversing groove are formed in the second adjusting column and are in communication with each other. A first shifting rod is fixedly installed on the lifting plate, and the first shifting rod is inserted into the second guide groove or the second reversing groove and slides.
[0011] As a further description of the above technical solution, a torsion spring is sleeved on the supporting pipe and is used to keep the sleeve pipe and the guide hole vertical.
[0012] As a further description of the above technical solution, reversing wheels are installed at both ends of the sleeve pipe.
[0013] As a further description of the above technical solution, a plurality of first clamps are installed on the supporting plate and are in position correspondence with the guide hole.
[0014] As described above, due to the adoption of the above technical solution, the present application has the following beneficial effects: 1. The present application can realize synchronous tensioning operation of multiple groups of cables, the rotation of the sleeve pipe and the extension of the extension rod can both increase the tensioning path of the cables, and do not affect the spacing between the parallel laid cables, and can quickly and efficiently realize tension adjustment of multiple groups of cables.
[0015] 2. The position of the supporting wheel is precisely controlled by the movement of the supporting column in the guide hole, ensuring the stability of the cable inlet end position and avoiding stress concentration and cable wear caused by angle deviation.
[0016] 3. The application can also solve the problem of inconsistent initial tension of multiple groups of cables. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is the overall structure schematic diagram of the application.
[0018] Figure 2 is the cross-sectional view of the application.
[0019] Figure 3 is the cable winding schematic diagram of the application.
[0020] Figure 4 is the telescopic rod connection structure schematic diagram of the application.
[0021] Figure 5 is the top rod position schematic diagram of the application.
[0022] Figure 6 is the ratchet connection structure schematic diagram of the application.
[0023] Figure 7 is the first pawl connection structure schematic diagram of the application.
[0024] Figure 8 is the second pawl connection structure schematic diagram of the application.
[0025] Figure 9 is the lifting plate structure schematic diagram of the application.
[0026] Explanation of Figure Markings: 1, support plate; 11, guide hole; 12, fixed wheel; 13, first clamp; 14, guide frame; 15, second clamp; 2, rotating assembly; 21, support pipe; 22, sleeve; 23, telescopic rod; 24, supporting column; 25, supporting wheel; 26, reversing wheel; 27, push plate; 28, sliding groove; 29, first adjusting column; 210, first pawl; 211, first elastic member; 212, first guide slot; 213, first reversing slot; 214, ratchet; 3, driving component; 31, threaded rod; 32, top block; 33, top rod; 4, torsional spring; 5, fixed frame; 51, second adjusting column; 52, second pawl; 53, second elastic member; 54, second guide slot; 55, second reversing slot; 6, lifting assembly; 61, screw rod; 62, lifting plate; 63, guide rod; 64, first lever; 65, sliding block; 66, second lever; 67, arc-shaped slot; 68, positioning plate; 69, guide rail. DETAILED DESCRIPTION
[0027] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.
[0028] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application. Figures 1 to 9 The present embodiment discloses a low-voltage cable tightener, comprising a support plate 1, the support plate 1 is in the shape of a few characters, the support plate 1 is fixed on the support part when tightening, a plurality of guide holes 11 are formed on the support plate 1, the guide holes 11 need to be kept corresponding and parallel to the incoming direction of the cable when the support plate 1 is installed, a plurality of fixed wheels 12 and a plurality of first clamps 13 are installed on the support plate 1, a plurality of guide frames 14 are fixedly installed on the bottom of the support plate 1, the end of the cable is fixed by the second clamp 15 when the cable is tightened, and the end of the cable passes through the fixed wheel 12.
[0029] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application. Figures 1 to 7 A plurality of rotating assemblies 2 are installed on the support plate 1, the rotating assembly 2 comprises a support pipe 21 rotationally connected with the support plate 1, the top of the support pipe 21 penetrates through the support plate 1 and is fixedly installed with a sleeve pipe 22, the two ends of the sleeve pipe 22 are slidingly connected with an extension rod 23, the end of the extension rod 23 is fixedly installed with a support column 24, the support column 24 is inserted into the guide hole 11 and slides, the support column 24 is rotationally connected with a support wheel 25, the two ends of the sleeve pipe 22 are installed with a reversing wheel 26, the two groups of reversing wheels 26 are on the same side of the sleeve pipe 22, and are used for reversing when the cable is wound, so as to avoid the abrasion problem caused by the contact between the cable and the end of the sleeve pipe 22, and the winding mode when the cable is tightened is as shown in Figure 3
[0030] The bottom of the support pipe 21 is rotationally connected with a push plate 27, the push plate 27 is formed with a sliding groove 28, the push plate 27 is rotationally connected with a first adjusting column 29, the first adjusting column 29 is fixedly installed with a first pawl 210, the first pawl 210 is installed with a first elastic piece 211, one end of the first elastic piece 211 is hooked with the first pawl 210, and the other end is hooked with the push plate 27, the first adjusting column 29 is formed with a first guide groove 212 and a first reversing groove 213 which are in communication, the first reversing groove 213 is above the first guide groove 212, the first guide groove 212 is formed in parallel with the axis of the first adjusting column 29, the support pipe 21 is fixedly installed with a ratchet wheel 214, the first elastic piece 211 is used to drive the first pawl 210 to be clamped on the ratchet wheel 214, and the first pawl 210 is used to drive the ratchet wheel 214 to rotate. The push plate 27 drives the first pawl 210 to rotate, thereby driving the ratchet wheel 214, the support pipe 21, the sleeve pipe 22, the extension rod 23 and the support wheel 25 to rotate, the cable is gradually tightened under the driving of the support wheel 25, thereby realizing the tightening of the cable.
[0031] The present application inserts the support column 24 into the guide hole 11, so that when the rotating assembly 2 rotates, the support column 24 can only move in the direction of the guide hole 11, thereby gradually lengthening the telescopic rod 23 and further increasing the tension of the cable, improving the tensioning efficiency. The first clamps 13 and the corresponding support wheels 25 are positionally corresponding, so that by controlling the position of the support wheel 25 through the movement of the support column 24 in the guide hole 11, the position of the cable entry end is always kept unchanged, thereby avoiding the generation of an included angle between the cable and the first clamp 13, and further reducing the risk of cable wear.
[0032] Referring to Figures 1 to 5 , the support plate 1 is provided with a driving component 3, which includes a threaded rod 31 rotationally connected with the support plate 1, one end of the threaded rod 31 being fixedly provided with a hand wheel, and the other end being fixedly provided with a connecting head. The user can control the rotation of the threaded rod 31 by rotating the hand wheel, which is a manual mode. The user can also connect the output end of an electric screw machine with the connecting head, thereby realizing mechanical driving. A plurality of top blocks 32 slidably connected with the guide frame 14 are threadedly connected with the threaded rod 31, the bottom of the top block 32 being fixedly provided with a top rod 33 which is inserted into the sliding groove 28 to slide. By controlling the threaded rod 31 to drive the plurality of top blocks 32 to slide, the top rod 33 pushes the push plate 27 to rotate, thereby realizing the synchronous rotation of the plurality of rotating assemblies 2, and simultaneously adjusting the plurality of cables, thereby improving the adjustment efficiency. Moreover, the present application does not affect the spacing, installation position and relative parallel state between adjacent two cables when tensioning the plurality of cables.
[0033] Referring to Figure 2 and Figure 4 , the support tube 21 is provided with a torsional spring 4, one end of the torsional spring 4 being fixedly connected with the support plate 1, and the other end being fixedly connected with the support tube 21. The torsional spring 4 is used to control the sleeve 22 to reset to the initial state, i.e. the sleeve 22 is perpendicular to the guide hole 11, at this time, the support column 24 is in the end limiting state of the guide hole 11.
[0034] Referring to Figure 5 , Figure 6 and Figure 8 , a plurality of fixed frames 5 are fixedly installed in the support plate 1, the fixed frame 5 being rotationally connected with the support tube 21, the fixed frame 5 being rotationally connected with a second adjusting column 51, the second adjusting column 51 being fixedly provided with a second pawl 52, the second pawl 52 being provided with a second elastic member 53, one end of the second elastic member 53 being hooked with the second pawl 52, and the other end being hooked with the fixed frame 5. The second elastic member 53 is used to drive the second pawl 52 to be clamped on the ratchet wheel 214. The second adjusting column 51 is provided with a second guide groove 54 and a second reversing groove 55 which are in communication with each other, the second reversing groove 55 being below the second guide groove 54, and the second guide groove 54 being parallel to the axis of the second adjusting column 51.
[0035] Need to explain, when the first pawl 210 and ratchet 214 card, other first pawl 210 and second pawl 52 also with the corresponding ratchet 214 card, to ensure that the ratchet and ratchet card state consistency.
[0036] Referring to Figure 1 , Figure 4 , Figure 5 , Figure 6 And Figure 9 As shown, the sleeve 22 is provided with a plurality of lifting assembly 6, lifting assembly 6 includes with sleeve 22 screw thread cooperation screw rod 61, one end of the screw rod 61 through the support tube 21 and rotatingly connected with the lifting plate 62, lifting plate 62 through the guide rod 63 and support plate 1 slidingly connected, lifting plate 62 is fixedly installed with the first lever 64, the first lever 64 is inserted in the second guide groove 54 and the second reversing slot 55 slidingly, for controlling the second adjusting column 51 rotation, so that the second pawl 52 disengages from the ratchet 214, cancel the limit, lifting plate 62 is fixedly installed with the guide rail 69, guide rail 69 is arc-shaped and coaxial with the support tube 21, the guide rail 69 is slidingly connected with the sliding block 65, the sliding block 65 is fixedly installed with the second lever 66, the second lever 66 is perpendicular to the axis of the support tube 21, the second lever 66 is inserted in the first guide groove 212 and the first reversing slot 213 slidingly, for controlling the first adjusting column 29 rotation, so that the first pawl 210 disengages from the ratchet 214, cancel the first pawl 210 and the ratchet 214 of the linkage, lifting plate 62 is provided with arc-shaped groove 67 with the support tube 21 common center, the first adjusting column 29 is movably inserted in the sliding block 65 and inserted into the arc-shaped groove 67. The first adjusting column 29 can simultaneously drive the sliding block 65 to slide on the guide rail 69 when rotating around the axis of the support tube 21.
[0037] Referring to Figure 4 , the screw rod 61 is fixedly installed with the positioning plate 68, when the positioning plate 68 is flush with the sleeve 22, the first lever 64 and the second lever 66 are in the corresponding guide groove, at this time, the first pawl 210 and the second pawl 52 are clamped on the ratchet 214.
[0038] Working principle: a plurality of cables are wound on the corresponding support wheel 25 and reversing wheel 26, the end of the cable is locked on the fixed wheel 12 through the second clamp 15, the threaded rod 31 is manually or through the electric screw machine controlled to rotate, a plurality of top blocks 32 are driven to slide along the support plate 1 through the threaded cooperation, the top rod 33 at the bottom of the top block 32 slides in the sliding groove 28 and pushes the push plate 27 to rotate around the axis of the support pipe 21, the push plate 27 drives the first adjusting column 29, the first pawl 210 and the sliding block 65 to rotate around the axis of the support pipe 21, the first pawl 210 is clamped with the ratchet wheel 214 to drive the ratchet wheel 214, the support pipe 21, the sleeve pipe 22 and the telescopic rod 23 to rotate, the support column 24 is inserted into the guide hole 11 and slides to make the support wheel 25 move along the direction of the guide hole 11, so that the tension of the plurality of cables is realized, and after the tension is completed, the cable body in the tension state is fixed through the first clamp 13 to lock the tension.
[0039] In order to solve the problem that the initial tension of different cables is inconsistent in the cable tensioning operation, the lifting assembly 6 can solve the problem, specifically: after a group of cables are tensioned, the lifting plate 62, the first shifting rod 64 and the second shifting rod 66 are driven to descend by rotating the screw rod 61, the first shifting rod 64 moves along the second guide groove 54 during the descending process, and the second shifting rod 66 moves from the first guide groove 212 to the first reversing groove 213, so that the first adjusting column 29 is forced to rotate, and then the first pawl 210 is separated from the ratchet wheel 214, and the second pawl 52 is still clamped with the ratchet wheel 214 to limit, at this time, when the threaded rod 31 is rotated, only the rotating assembly 2 corresponding to the cable that has not been tensioned is driven to rotate, and the rotating assembly 2 corresponding to the cable that has been tensioned is limited to stop rotating, so that the tensioning operation of part of the cable is realized.
[0040] The present application can also realize the canceling of cable tensioning or the resetting of the sleeve pipe 22, specifically: the lifting plate 62, the first shifting rod 64 and the second shifting rod 66 are driven to ascend by rotating the screw rod 61, the first shifting rod 64 moves from the second guide groove 54 to the second reversing groove 55 during the ascending process, so that the second adjusting column 51 drives the second pawl 52 to rotate, and the second pawl 52 is separated from the ratchet wheel 214, at this time, the top block 32 is controlled to move backward by reversely rotating the threaded rod 31, so that the push plate 27 and the first pawl 210 are driven to rotate back by the top rod 33, and the support pipe 21 rotates back under the action of the torsional spring 4, so that the sleeve pipe 22 is reset to the vertical state with the guide hole 11.
[0041] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A low-voltage cable tensioner, characterized in that: Includes a support plate (1), on which a number of fixed wheels (12) are installed, and on which a number of rotating components (2) are installed. The rotating assembly (2) includes a support tube (21) rotatably connected to the support plate (1), a sleeve (22) is fixedly installed on the support tube (21), a telescopic rod (23) is slidably connected to both ends of the sleeve (22), a support column (24) is fixedly installed at the end of the telescopic rod (23), the support column (24) is inserted into the guide hole (11) of the support plate (1) and can slide along it, and a support wheel (25) is rotatably connected to the support column (24). The drive component (3) and several of the rotating components (2) are connected to the output end of the drive component (3); The driving component (3) drives the support tube (21) to rotate and drives the sleeve (22) to rotate synchronously; the support column (24) is linearly constrained by the guide hole (11), which forces the telescopic rod (23) to extend along the axial direction of the sleeve (22), thus extending the path of the cable around the two support wheels (25).
2. The low-voltage cable tensioner according to claim 1, characterized in that: A push plate (27) is rotatably connected to the support tube (21). A slide groove (28) is provided on the push plate (27). A first adjusting column (29) is rotatably connected to the push plate (27). A first pawl (210) is fixedly installed on the first adjusting column (29). A ratchet (214) is fixedly installed on the support tube (21). The first pawl (210) is tightened by the first elastic element (211) and engaged with the ratchet (214).
3. A low-voltage cable tensioner according to claim 2, characterized in that: The driving component (3) includes a threaded rod (31) rotatably connected to the support plate (1). The threaded rod (31) is threaded with several top blocks (32) slidably connected to the support plate (1). The bottom of the top block (32) is fixedly installed with a top rod (33), which slides in the groove (28).
4. A low-voltage cable tensioner according to claim 2, characterized in that: A number of fixed brackets (5) are fixedly installed on the support plate (1). A second adjusting column (51) is rotatably connected to the fixed bracket (5). A second pawl (52) is fixedly installed on the second adjusting column (51). The second pawl (52) is tightened by the second elastic element (53) and engaged with the ratchet (214).
5. A low-voltage cable tensioner according to claim 4, characterized in that: It also includes several lifting components (6), each lifting component (6) including a screw (61) threadedly engaged with the sleeve (22), a lifting plate (62) rotatably connected to the screw (61), the lifting plate (62) being slidably connected to the support plate (1), a slider (65) being slidably connected to the lifting plate (62), the first adjusting column (29) being movably inserted into the slider (65), and a second lever (66) being fixedly installed on the slider (65); The first adjusting column (29) has a first guide groove (212) and a first reversing groove (213) that are interconnected. The second lever (66) slides in the first guide groove (212) or the first reversing groove (213).
6. A low-voltage cable tensioner according to claim 5, characterized in that: The second adjusting column (51) is provided with a second guide groove (54) and a second reversing groove (55) that are interconnected. A first lever (64) is fixedly installed on the lifting plate (62), and the first lever (64) slides in the second guide groove (54) or the second reversing groove (55).
7. A low-voltage cable tensioner according to claim 6, characterized in that: The support tube (21) is fitted with a torsion spring (4) for keeping the traction sleeve (22) perpendicular to the guide hole (11).
8. A low-voltage cable tensioner according to claim 1, characterized in that: The sleeve (22) is equipped with reversing wheels (26) at both ends.
9. A low-voltage cable tensioner according to claim 1, characterized in that: A number of first clamps (13) are installed on the support plate (1), and the positions of the first clamps (13) correspond to the guide holes (11).