A cable bending tool with adjustable bending radius

Abstract

The application discloses a cable bending tool with adjustable bending radius, which comprises a base, a bending module and a wire bending mechanism, the upper part of the base is provided with a connecting column, the upper part of the connecting column is provided with a fixing disc, the fixing disc is provided with a fixing column, the middle part of the fixing column is provided with a connecting thread, the bending module comprises a plurality of mutually sleeved bending sleeves, the lower end of the fixing column is symmetrically connected with two groups of connecting arms, one end of the connecting arm is provided with a wire clamping seat, the wire clamping seat is provided with two groups of wire clamping rollers, the outer side of the wire clamping seat is connected with a fixing rod, the tail end of the fixing rod is connected with a connecting rod through a hinge support, the other end of the two connecting rods is hinged with a connecting frame, one side of the base is provided with a mounting seat, the mounting seat is fixedly connected with a hydraulic cylinder, and the piston rod of the hydraulic cylinder is connected with the connecting frame. The cable bending radius is adjusted through the threaded connection of different numbers of bending sleeves, the cable bending of different radii is realized, the cable bending efficiency is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] This invention belongs to the field of power construction, and specifically relates to a cable bending tool with an adjustable bending radius. Background Technology

[0002] In power engineering, cable laying and maintenance play a crucial role. As the core medium for power transmission, cables typically require precise bending to meet specific spatial layout and installation requirements when running in distribution boxes, switchgear, junction boxes, and within cabinets. However, current cable bending operations mainly rely on manual labor, a method with a series of problems and limitations.

[0003] For large-diameter cables, due to their significant weight, bending them manually is not only physically demanding but also inefficient. During cable laying and bending, operators often need to invest considerable physical strength and time to complete the bending work, which not only increases the labor burden but may also lead to delays in construction progress.

[0004] Ambient temperature is also a significant factor affecting cable bending operations. In cold conditions, cable materials become harder and less elastic, making bending particularly difficult. In some extreme cases, the cables are so rigid that bending them manually is almost impossible, severely hindering the progress and quality of power engineering projects.

[0005] Furthermore, existing bending tools typically have a fixed bending head design, limiting them to bending within that radius. This limitation makes the tools inadequate for handling diverse spatial layouts and installation requirements. To meet the needs of different bending radii, operators may need to replace bending heads of different specifications or employ other auxiliary methods, which undoubtedly increases the complexity and inconvenience of the operation.

[0006] More importantly, manually bending cables poses potential safety hazards. During the bending process, operators may be injured due to improper force or operational errors. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a cable bending tool with an adjustable bending radius to solve the problems of high labor intensity and low bending efficiency when bending cables manually, as well as the defects of existing fixed-size bending heads that cannot meet different bending radii.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An adjustable bending radius cable bending tool includes a base, a bending module, and a bending mechanism. The base has legs at its lower part and a connecting column at its upper part. A fixing plate is located on the upper part of the connecting column, and a fixing column is mounted on the fixing plate. A connecting thread is located in the middle of the fixing column. The bending module includes several interlocking bending sleeves. Each bending sleeve has external and internal threads at its lower part, and adjacent bending sleeves are threaded together. The internal thread of the innermost bending sleeve connects to the connecting thread on the fixing column. Two sets of connecting arms are symmetrically connected to the lower end of the fixing column, and the connecting arms are rotatably connected to the fixing column. One end of each connecting arm has a clamping seat, and the clamping seat has two sets of clamping rollers. The cable is placed inside the two sets of clamping rollers. A fixing rod is connected to the outside of the clamping seat, and the end of the fixing rod is connected to a connecting rod via a hinge support. The other ends of the two connecting rods are hinged to a connecting frame. A mounting base is located on one side of the base, and a hydraulic cylinder is fixedly connected to the mounting base. The piston rod of the hydraulic cylinder is connected to the connecting frame.

[0009] Furthermore, the fixed plate is provided with a scale.

[0010] Furthermore, the fixed plate is provided with a limiting block, the upper end face of which is flush with the upper end face of the connecting arm, and a fastening bolt is threaded onto the limiting block, with the lower end face of the fastening bolt abutting against the fixed plate.

[0011] Furthermore, the fixed plate is provided with an anti-detachment groove, and when the fastening bolt is locked with the fixed plate, the fastening bolt is located in the anti-detachment groove.

[0012] Furthermore, the wire clamp seat has two sliding grooves inside, and a slider is provided in the sliding groove. The wire clamping roller is rotatably mounted on the slider. A double-ended stud is rotatably connected to the wire clamp seat, and the slider is threadedly connected to the double-ended stud.

[0013] Furthermore, the base is provided with an inclined arc-shaped base plate, one end of the connecting arm is provided with a spline sleeve, a spline shaft is slidably connected inside the spline sleeve, the upper end of the spline shaft is fixedly connected to the clamp seat, the lower end of the spline shaft abuts against the arc-shaped base plate, and the hinge support adopts a universal joint coupling.

[0014] Furthermore, the lower end of the spline shaft is connected to a universal caster, and a spring is sleeved on the outside of the spline shaft. The lower end of the spring is connected to the universal caster, and the upper end of the spring is connected to the connecting arm.

[0015] Furthermore, baffles are provided on both sides of the arc-shaped base plate.

[0016] Furthermore, the base is provided with an arc-shaped groove, one end of the arc-shaped base plate is hinged to one end of the groove, and several adjusting bolts are threadedly connected to the bottom of the groove, with the ends of the adjusting bolts abutting against the bottom of the arc-shaped base plate.

[0017] The beneficial effects of this invention are: 1) This invention achieves the adjustment of cable bending radius by using different numbers of bent sleeve threaded connections, enabling cable bending with different radii, while improving cable bending efficiency and reducing the labor intensity of operators.

[0018] 2) A scale is set on the fixed plate, and a limit block is also set on the fixed plate. The limit block is fixed at the required bending angle to ensure the accuracy of cable bending.

[0019] 3) A double-ended stud is set inside the wire clamp seat, and two sliders are symmetrically threaded onto the double-ended stud. The wire clamping roller is rotatably mounted on the slider, realizing the adjustment of the distance between the two wire clamping rollers. It is suitable for use when bending cables of different diameters.

[0020] 4) A groove is provided on the base, and an arc-shaped base plate is hinged to one end of the groove. Several adjusting bolts are threaded to the bottom of the groove. The spline shaft is connected to the cable clamp seat, and a universal joint coupling is used to connect to the connecting rod. When the cable needs to be bent vertically, the adjusting bolt is rotated according to the required vertical bending angle of the cable, and the arc-shaped base plate is adjusted to the required tilt angle. When the hydraulic cylinder extends, the cable clamp seat rotates around the fixed column and moves upward in the spline sleeve under the interference of the arc-shaped base plate, realizing the simultaneous horizontal and vertical bending of the cable. Attached Figure Description

[0021] Appendix Figure 1 This is a diagram showing the usage status of an adjustable bending radius cable bending tool according to the present invention.

[0022] Appendix Figure 2 This is a schematic diagram of the assembly of the bending mechanism and the fixed plate in a cable bending tool with adjustable bending radius according to the present invention.

[0023] Appendix Figure 3 This is a schematic diagram of the assembly of the connecting arm and the spline shaft in a cable bending tool with adjustable bending radius according to the present invention.

[0024] Appendix Figure 4 This is a schematic diagram of the clamp seat in a cable bending tool with adjustable bending radius according to the present invention.

[0025] Appendix Figure 5 This is an exploded view of the bending sleeve in a cable bending tool with adjustable bending radius according to the present invention.

[0026] Appendix Figure 6 This is a schematic diagram of the fixed plate in an adjustable bending radius cable bending tool of the present invention.

[0027] Appendix Figure 7 This is a schematic diagram of one side of the base in an adjustable bending radius cable bending tool of the present invention.

[0028] Appendix Figure 8 This is a schematic diagram of the other side of the base in the cable bending tool with adjustable bending radius of the present invention.

[0029] In the diagram, 1. Base; 11. Support leg; 12. Connecting column; 13. Groove; 14. Arc-shaped base plate; 15. Baffle; 16. Adjusting bolt; 17. Mounting seat; 18. Hydraulic cylinder; 2. Fixed plate; 21. Fixed column; 211. Connecting thread; 22. Scale; 23. Limiting block; 24. Fastening bolt; 25. Anti-detachment slot; 3. Bending module; 31. Bending sleeve; 32. External thread; 4. Bending mechanism; 41. Connecting arm; 42. Splined shaft; 43. Universal caster; 44. Spring; 45. Pin; 46. Splined sleeve; 47. Wire clamp seat; 471. Double-ended stud; 472. Slider; 473. Wire clamp roller; 474. Fixed rod; 475. Hinge support; 48. Connecting rod; 49. Connecting frame; 5. Cable. Detailed Implementation

[0030] The following will be combined with the appendix Figures 1-8 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0032] like Figure 1 As shown, a cable bending tool with adjustable bending radius includes a base 1, a bending module 3, and a bending mechanism 4. Figure 7 , Figure 8 As shown, the base 1 has a support leg 11 at its lower part and a connecting column 12 at its upper part, as... Figure 6 As shown, the upper part of the connecting post 12 is provided with a fixing plate 2, the fixing plate 2 is provided with a fixing post 21, and the fixing post 21 is provided with a connecting thread 211 in the middle, as shown. Figure 5As shown, the bending module 3 includes several interlocking bending sleeves 31. Each bending sleeve 31 has an external thread 32 and an internal thread at its lower part. Adjacent bending sleeves 31 are threaded together. The internal thread of the innermost bending sleeve 31 is connected to the connecting thread 211 on the fixing post 21. By connecting different numbers of bending sleeves 31, the radius of the bending module 3 can be changed, realizing bending of cables with different radii. Figure 2 , Figure 3 As shown, two sets of connecting arms 41 are symmetrically connected to the lower end of the fixed column 21. The connecting arms 41 are rotatably connected to the fixed column 21. One end of each connecting arm 41 is provided with a wire clamp 47. Figure 4 As shown, the wire clamping seat 47 is provided with two sets of wire clamping rollers 473, and the cable 5 is placed inside the two sets of wire clamping rollers 473; a fixing rod 474 is connected to the outside of the wire clamping seat 47, and the end of the fixing rod 474 is connected to a connecting rod 48 through a hinge support 475. The other ends of the two connecting rods 48 are hinged to the connecting frame 49; Figure 7 As shown, a mounting base 17 is provided on one side of the base 1, and a hydraulic cylinder 18 is fixedly connected to the mounting base 17. The piston rod of the hydraulic cylinder 18 is connected to the connecting frame 49.

[0033] like Figure 6 As shown, the fixed plate 2 is provided with a scale 22, which makes it easy to intuitively judge the angle of cable bending.

[0034] like Figure 6 As shown, the fixed plate 2 is provided with a limiting block 23. The upper end face of the limiting block 23 is flush with the upper end face of the connecting arm 41. The limiting block 23 is threaded with a fastening bolt 24. The lower end face of the fastening bolt 24 abuts against the fixed plate 2. The limiting block 23 can easily limit the angle of cable bending and ensure the accuracy of cable bending.

[0035] like Figure 6 As shown, the fixed plate 2 is provided with an anti-detachment groove 25. When the fastening bolt 24 is locked with the fixed plate 2, the fastening bolt 24 is located in the anti-detachment groove 25, which prevents the limiting block 23 from falling off the fixed plate 2 when the connecting arm 41 collides with the limiting block 23.

[0036] like Figure 4 As shown, the wire clamping seat 47 has two sliding grooves inside, and a slider 472 is provided in the sliding groove. The wire clamping roller 473 is rotatably mounted on the slider 472. A double-ended stud 471 is rotatably connected to the wire clamping seat 47. The slider 472 is threadedly connected to the double-ended stud 471. By rotating the double-ended stud 471, the distance between the two sliders 472 can be easily adjusted, thereby adjusting the distance between the two wire clamping rollers 473 according to the diameter of the cable 5. This method is suitable for use when bending cables of different diameters.

[0037] like Figure 7 , Figure 8 As shown, the base 1 is provided with an inclined arc-shaped base plate 14, such as... Figure 3 As shown, one end of the connecting arm 41 is provided with a spline sleeve 46, and a spline shaft 42 is slidably connected inside the spline sleeve 46. The upper end of the spline shaft 42 is fixedly connected to the wire clamp 47, and the lower end of the spline shaft 42 abuts against the arc-shaped base plate 14. Figure 2 As shown, the hinge support 475 adopts a universal joint coupling, and the inclined arc-shaped base plate 14 enables the cable to bend simultaneously in the horizontal and vertical planes, expanding the application scenarios of cable bending.

[0038] like Figure 3 As shown, the lower end of the spline shaft 42 is connected to a universal caster 43, and a spring 44 is sleeved on the outside of the spline shaft 42. The lower end of the spring 44 is connected to the universal caster 43, and the upper end of the spring 44 is connected to the connecting arm 41, which reduces the friction between the spline shaft 42 and the arc-shaped base plate 14.

[0039] like Figure 7 As shown, baffles 15 are provided on both sides of the arc-shaped base plate, which restrict the movement trajectory of the swivel caster 43 and prevent the swivel caster 43 from falling off the arc-shaped base plate 14.

[0040] like Figure 7 , Figure 8 As shown, the base 1 is provided with an arc-shaped groove 13, and one end of the arc-shaped base plate 14 is hinged to one end of the groove 13. Several adjusting bolts 16 are threadedly connected to the bottom of the groove 13. The ends of the adjusting bolts 16 abut against the bottom of the arc-shaped base plate, so as to adjust the tilt angle of the arc-shaped base plate 14, thereby adjusting the bending angle of the cable in the vertical plane.

[0041] Before bending cable 5, connect different numbers of bending sleeves 31 according to the required bending radius. Unused bending sleeves 31 can be placed on the connecting arm 41. Rotate the double-ended stud 471 according to the diameter of cable 5 to adjust the distance between the two clamping rollers 473. Then place cable 5 between the two clamping rollers 473. Adjust the position of the two limit blocks 23 according to the required bending angle of cable and fix them to the fixing plate 2 using fastening bolts 24. Then control the piston rod of hydraulic cylinder 18 to extend. The connecting frame 49 drives the fixing rod 474, clamping seat 47 and connecting arm through the connecting rod 48. 41 rotates around the fixed column 21, realizing the planar bending of the cable; when the cable 5 needs to be bent vertically, the pin 45 is removed, and according to the angle requirement of the vertical bending of the cable, the adjusting bolt 16 is rotated to adjust the arc base plate 14 to the required tilt angle. When the hydraulic cylinder 18 extends, the clamp seat 47 rotates around the fixed column 21 and moves upward in the spline sleeve 46 under the interference of the arc base plate 14, realizing the simultaneous horizontal and vertical bending of the cable 5. This not only improves the efficiency of cable bending and reduces the labor intensity of operators, but also meets the requirements of different bending radii and bending directions of the cable.

[0042] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A cable bending tool with adjustable bending radius, comprising a base, a bending module, and a bending mechanism, wherein the base has a support leg at its lower part, a connecting column at its upper part, a fixing plate at the upper part of the connecting column, and a fixing column on the fixing plate, characterized in that, The fixed column has a connecting thread in the middle. The bending module includes several interlocking bending sleeves. Each bending sleeve has an external thread and an internal thread at its lower part. Adjacent bending sleeves are threaded together. The internal thread of the innermost bending sleeve is connected to the connecting thread on the fixed column. Two sets of connecting arms are symmetrically connected to the lower end of the fixed column. The connecting arms are rotatably connected to the fixed column. One end of each connecting arm is provided with a wire clamp. The wire clamp has two sets of wire clamping rollers, and the cable is placed inside the two sets of wire clamping rollers. A fixed rod is connected to the outer side, and the end of the fixed rod is connected to a connecting rod through a hinge support. The other ends of the two connecting rods are hinged to the connecting frame. A mounting seat is provided on one side of the base, and a hydraulic cylinder is fixedly connected to the mounting seat. The piston rod of the hydraulic cylinder is connected to the connecting frame. An inclined arc-shaped base plate is provided on the base. A spline sleeve is provided at one end of the connecting arm. A spline shaft is slidably connected inside the spline sleeve. The upper end of the spline shaft is fixedly connected to the clamp seat, and the lower end of the spline shaft abuts against the arc-shaped base plate. The hinge support adopts a universal joint coupling.

2. The cable bending tool with adjustable bending radius according to claim 1, characterized in that, The fixed plate is marked with graduations.

3. The cable bending tool with adjustable bending radius according to claim 2, characterized in that, The fixed plate is provided with a limiting block, the upper end face of which is flush with the upper end face of the connecting arm. The limiting block is threaded with a fastening bolt, and the lower end face of the fastening bolt abuts against the fixed plate.

4. The cable bending tool with adjustable bending radius according to claim 3, characterized in that, The fixed plate is provided with an anti-detachment groove. When the fastening bolt is locked with the fixed plate, the fastening bolt is located in the anti-detachment groove.

5. The cable bending tool with adjustable bending radius according to claim 1, characterized in that, The wire clamp seat has two sliding grooves inside, and a slider is provided in the sliding groove. The wire clamping roller is rotatably mounted on the slider. A double-ended stud is rotatably connected to the wire clamp seat, and the slider is threadedly connected to the double-ended stud.

6. The cable bending tool with adjustable bending radius according to claim 1, characterized in that, The lower end of the spline shaft is connected to a universal caster, and a spring is sleeved on the outside of the spline shaft. The lower end of the spring is connected to the universal caster, and the upper end of the spring is connected to the connecting arm.

7. The cable bending tool with adjustable bending radius according to claim 1, characterized in that, The curved base plate has baffles on both sides.

8. The cable bending tool with adjustable bending radius according to claim 1, characterized in that, The base has an arc-shaped groove, one end of the arc-shaped base plate is hinged to one end of the groove, and several adjusting bolts are threaded to the bottom of the groove, with the ends of the adjusting bolts abutting against the bottom of the arc-shaped base plate.

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