Tensioning device for power cable installation
By designing the adjustment and limiting mechanism of the tensioning device, the problem that the existing cable installation device is difficult to adapt to cables of different diameters and prevent detachment is solved, adaptive tensioning and limiting of the cable is achieved, and cable damage and detachment are avoided.
Patent Information
- Application Number
- CN202422671396.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-11-04
AI Technical Summary
Existing tensioning devices for power cable installation are difficult to adjust to cables of different diameters and lack a limit on the cable, which may cause the cable to detach from the tensioning wheel.
A structure including a tensioning box, a U-shaped frame, a slide groove, a slider, a fixing rod, a fixed pulley, a motor, a bevel gear and a screw was designed. The structure can adapt to cables of different diameters through an adjustment mechanism and prevent the cables from detaching through a limit mechanism.
It realizes adaptive tensioning of cables with different diameters, avoids cable damage, and effectively prevents the cable from detaching from the tensioning wheel.
Smart Images
Figure CN223309515U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power cable installation, in particular to a tensioning device for power cable installation. Background Art
[0002] Power cables are an essential component of modern power systems, used to transmit and distribute electrical energy. During power cable installation, ensuring cable tension is crucial. Proper tension prevents wear and tear caused by cable slack. It also helps evenly distribute the cable on the supporting structure, reducing stress concentration and extending the cable's service life. The design and application of tensioning devices for power cable installation aim to address the shortcomings of existing technologies, improve the efficiency and quality of cable installation, and reduce labor intensity and safety risks. By introducing advanced technologies and materials, future tensioning devices will be more automated, intelligent, and multifunctional, better meeting the needs of power cable installation.
[0003] An existing tensioning device for power cable installation is not convenient for adjusting cables of different diameters during use, and lacks a limit for the cable to prevent the cable from detaching from the tensioning wheel. An existing tensioning device for power cable installation solves the above problems. Utility Model Content
[0004] (1) Technical problems solved
[0005] In view of the deficiencies in the prior art, the present invention provides a tensioning device for power cable installation, which solves the problems raised in the above-mentioned background technology.
[0006] (2) Technical solution
[0007] The first and second sliding grooves are provided inside the second U-shaped frame, and the third sliding groove is provided inside the second U-shaped frame. The front side of the second U-shaped frame is provided with a third fixing rod and a fourth fixing rod. The outer surface of the first fixing rod is sleeved with the first fixed pulley, and the outer surface of the second fixing rod is sleeved with the second fixed pulley. The rear inner wall of the tensioning box is provided with a protective box, and a motor and a battery are provided inside the protective box. The output end of the motor is provided with a first bevel gear, and the top wall of the protective box is rotatably connected to the lead screw through a bearing. The bottom of the lead screw is provided with a second bevel gear, and the rear inner wall of the tensioning box is provided with a second U-shaped frame. The second sliding groove is provided inside the second U-shaped frame, and the third sliding groove is clamped in the second sliding groove. The front side of the second U-shaped frame is provided with a third fixing rod, and the front side of the third slider is provided with a fourth fixing rod.
[0008] Optionally, the front side of the first U-shaped frame is marked with a scale, and a pointer is provided on the top of the first sliding block.
[0009] Optionally, the first bevel gear is meshed with the second bevel gear, the first slider is transmission-connected to the outer surface of the lead screw, and the other end of the lead screw is rotationally connected to the inside of the first U-shaped frame through a bearing.
[0010] Optionally, a first groove is provided inside the first U-shaped frame, a first pull rod is arranged inside the first groove, a first baffle is welded to the outer surface of the first pull rod, a first spring is provided on one side of the first baffle, and the other end of the first spring is arranged on the inner wall of the first U-shaped frame, a first through hole is provided inside the second slider, the inner diameter of the first through hole is slightly larger than the diameter of the first pull rod, and there are a plurality of first through holes, which are evenly distributed inside the second slider.
[0011] Optionally, the outer surface of the third fixed rod is sleeved with a third fixed pulley, the outer surface of the fourth fixed rod is sleeved with a fourth fixed pulley, one end of the second fixed rod and the third fixed rod are both provided with a first support plate, the interior of the first support rod is rotatably connected to a T-shaped rod through a bearing, the outer surface of the T-shaped rod is sleeved with a first rotating cylinder, and the interior of the T-shaped rod is inserted with a connecting rod.
[0012] Optionally, a card box is provided at one end of the first fixed rod and the fourth fixed rod, a second groove is opened inside the card box, a second pull rod is provided in the second groove, a wedge block is provided at one end of the second pull rod, a second baffle is welded on the outer surface of the second pull rod, a second spring is provided on one side of the second baffle, and one end of the second spring is provided on the inner wall of the card box.
[0013] Optionally, a third groove is provided inside the second U-shaped frame, a third pull rod is provided inside the third groove, a third baffle is welded to the outer surface of the third pull rod, a third spring is provided on one side of the third baffle, and the other end of the third spring is provided on the inner wall of the second U-shaped frame, a second through hole is provided inside the fourth slider, the inner diameter of the second through hole is slightly larger than the diameter of the third pull rod, and the number of second through holes is several and evenly distributed inside the third slider.
[0014] Optionally, square grooves are provided on the left and right walls of the tensioning box, and the left and right walls of the tensioning box are rotatably connected to the second rotating drum through bearings.
[0015] The utility model provides a tensioning device for power cable installation, which has the following beneficial effects:
[0016] 1. This tensioning device for installing a power cable has an adjustable spacing between tensioning pulleys through the arrangement of a first fixed pulley, a third fixed pulley, a lead screw, a second bevel gear, a first bevel gear, a motor, and a pointer. The tensioning device can adapt to cables of different diameters through an adjustment mechanism. The scale on the device can make the tension during the tensioning operation more intuitive, thereby avoiding damage to the cable caused by excessive tension.
[0017] 2. This tensioning device for installing a power cable, through the arrangement of a second slider, a first spring, a first pull rod, a first baffle, a T-shaped rod, a wedge block, a second pull rod, a connecting rod, a second fixed pulley, a fourth fixed pulley and a first slider, enables this tensioning device for installing a power cable to limit the cable and effectively prevent the cable from detaching from the tensioning wheel. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;
[0019] Figure 2 This is a schematic structural diagram of the front cross-section of the present invention;
[0020] Figure 3 For this utility model Figure 2 A schematic structural diagram of the enlarged view of FIG.
[0021] Figure 4 This is a schematic structural diagram of the first turn and the T-shaped rod in front view of the cross section of the present invention;
[0022] Figure 5 This is a schematic structural diagram of a front cross-section of the card box of the utility model;
[0023] Figure 6 It is a schematic structural diagram of the side cross-section of the utility model.
[0024] In the figure: 1. tensioning box; 2. second fixed rod; 3. second fixed pulley; 4. first fixed rod; 5. first fixed pulley; 6. pointer; 7. third fixed rod; 8. third fixed pulley; 9. fourth fixed pulley; 10. fourth fixed rod; 11. third pull rod; 12. second rotating drum; 13. controller; 14. third spring; 15. third baffle; 16. third slider; 17. second bevel gear; 18. first bevel gear; 19. motor; 20. battery; 21. second slider; 22. first spring; 23. first pull rod; 24. first baffle; 25. lead screw; 26. T-bar; 27. wedge block; 28. cartridge; 29. second pull rod; 30. connecting rod; 31. first rotating drum; 32. second spring; 33. second U-shaped frame; 34. first U-shaped frame; 35. first slider. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0026] Example 1
[0027] A tensioning device for installing a power cable, comprising a tensioning box 1, a first U-shaped frame 34 and a controller 13 are provided on the rear inner wall of the tensioning box 1, a first slide groove is provided on the inner wall of the first U-shaped frame 34, a first slider 35 and a second slider 21 are clamped in the first slide groove, a first fixing rod 4 and a second fixing rod 2 are provided on the front sides of the first slider 35 and the second slider 21, a first fixing rod 4 and a second fixing rod 2 are provided respectively, a first fixed pulley 5 is sleeved on the outer surface of the first fixing rod 4, a second fixed pulley 3 is sleeved on the outer surface of the second fixing rod 2, a protective box is provided on the rear inner wall of the tensioning box 1, a motor 19 and a battery 20 are provided inside the protective box, a first bevel gear 18 is provided at the output end of the motor 19, a lead screw 25 is rotatably connected to the top wall of the protective box through a bearing, and a bottom of the lead screw 25 is provided There is a second bevel gear 17, a second U-shaped frame 33 is provided on the rear inner wall of the tensioning box 1, a second slide groove is opened inside the second U-shaped frame 33, a third slider 16 is clamped in the second slide groove, a third fixing rod 7 is provided on the front side of the second U-shaped frame 33, a fourth fixing rod 10 is provided on the front side of the third slider 16, a scale is marked on the front side of the first U-shaped frame 34, a pointer 6 is provided on the top of the first slider 35, the first bevel gear 18 is meshed with the second bevel gear 17, the first slider 35 is transmission-connected to the outer surface of the lead screw 25, the other end of the lead screw 25 is rotatably connected to the inside of the first U-shaped frame through a bearing, a first groove is opened inside the first U-shaped frame 34, a first pull rod 23 is provided inside the first groove, and a first pull rod 23 is welded on the outer surface of the first pull rod 23 The baffle 24 is provided with a first spring 22 on one side of the first baffle 24, and the other end of the first spring 22 is provided on the inner wall of the first U-shaped frame 34. A first through hole is opened inside the second slider 21, and the inner diameter of the first through hole is slightly larger than the diameter of the first pull rod 23. The number of first through holes is several and evenly distributed inside the second slider 21. The outer surface of the third fixed rod 7 is sleeved with the third fixed pulley 8, and the outer surface of the fourth fixed rod 10 is sleeved with the fourth fixed pulley 9. One end of the second fixed rod 2 and the third fixed rod 7 is provided with a first support plate, and the interior of the first support rod is rotatably connected to the T-shaped rod 26 through a bearing, and the outer surface of the T-shaped rod 26 is sleeved with the first rotating cylinder 31, and the interior of the T-shaped rod 26 is plugged with a connecting rod 30. The first fixed rod 4 and the fourth fixed rod A card box 28 is provided at one end of the rod 10, and a second groove is provided inside the card box 28, and a second pull rod 29 is provided in the second groove. A wedge block 27 is provided at one end of the second pull rod 29, and a second baffle is welded on the outer surface of the second pull rod 29. A second spring 32 is provided on one side of the second baffle, and one end of the second spring 32 is provided on the inner side wall of the card box 28. A third groove is provided inside the second U-shaped frame, and a third pull rod 11 is provided inside the third groove. A third baffle 15 is welded on the outer surface of the third pull rod 11, and a third spring 14 is provided on one side of the third baffle 15. The other end of the third spring 14 is provided on the inner side wall of the second U-shaped frame 33, and a second through hole is provided inside the fourth slider, and the inner diameter of the second through hole is slightly larger than the diameter of the third pull rod 11.The number of second through holes is evenly distributed inside the third slider 16. The left and right walls of the tensioning box 1 are both provided with square grooves. The left and right walls of the tensioning box 1 are both rotatably connected to the second rotating drum 12 via bearings.
[0028] In order to achieve this, a tensioning device for power cable installation is provided with an adjustable spacing between tensioning pulleys. The adjustment mechanism can adapt to cables of different diameters. The scale on the device can make the tension during the tensioning operation more intuitive, avoiding damage to the cable caused by excessive tension and limiting the cable, which can effectively prevent the cable from detaching from the tensioning pulley. Figure 1-6As shown, the present application adopts the following structure, through the cooperation of the second fixed pulley 3, the first fixed rod 4, the first fixed pulley 5, the third fixed pulley 8, the fourth fixed pulley 9, the fourth fixed rod 10, the third pull rod 11, the controller 13, the third spring 14, the third baffle 15, the third slider 16, the second bevel gear 17, the first bevel gear 18, the motor 19, the second slider 21, the first spring 22, the first pull rod 23, the first baffle 2, the screw 25, the T-shaped rod 26, the wedge block 27, the second pull rod 29, the connecting rod 30 and the first slider 35, during use, when adjusting the tension of the cable, the cable is clamped into the first fixed pulley 5 and the third fixed pulley 8, and after the cable is clamped into the first fixed pulley 5 and the third fixed pulley 8, the first pull rod 23 is pulled. , the first pull rod 23 drives the first baffle 24 and squeezes the first spring 22, so that the first pull rod 23 disengages from the first through hole inside the second slider 21, and then pushes the second fixed pulley 3, so that the second fixed pulley 3 contacts the cable or the cable is stuck between the first fixed pulley 5 and the second fixed pulley 3, and then releases the first pull rod 23, the first spring 22 releases the elastic force and pushes the first baffle 24 and the first pull rod 23, so that the first pull rod 23 can be inserted into the first through hole inside the second slider 21, and similarly pulls the third pull rod 11, the third pull rod 11 drives the third baffle 15 and squeezes the third spring 14, so that the third pull rod 11 disengages from the second through hole inside the first slider, pushing the fourth fixed pulley 9 downward, so that the fourth fixed pulley 9 contacts the cable or The cable can be stuck between the third fixed pulley 8 and the fourth fixed pulley 9, and then the third pull rod 11 is loosened, the third spring 14 releases the elastic force and pushes the third baffle 15 and the third pull rod 11, so that the third pull rod 11 can be inserted into the second through hole inside the third slider 16. After adjusting the positions of the first fixed pulley 5, the second fixed pulley 3 and the fourth fixed pulley 9, the second pull rod 29 is pulled, and the second pull rod 29 drives the wedge block 27, so that the wedge block 27 moves in the second groove and pressurizes the second spring 32, rotates the T-shaped rod 26, and makes one end of the T-shaped rod 26 contact with one end of the fourth fixed rod 10 or the first fixed rod 4, pull or retract the connecting rod 30 as needed, and then loosen the second pull rod 29, the second spring 32 releases the elastic force and pushes The wedge block 27 limits the connecting rod 30 to prevent the connecting rod 30 from disengaging, thereby meeting the requirements of tensioning cables of different sizes and limiting the cables to prevent the cables from disengaging from between the fixed pulleys. Then, the motor 19 is started by the controller 13, and the output end of the motor 19 drives the first bevel gear 18. The first bevel gear 18 engages and rotates with the second bevel gear 17, so that the second bevel gear 17 drives the lead screw 25 to rotate. The lead screw 25 drives the first slider 35 connected to the outer surface of the lead screw 25. The first slider 35 drives the first fixed rod 4 and the first fixed pulley 5 to move downward. The first fixed pulley 5 also drives the cable to move downward. During the downward movement of the first fixed pulley 5, the scale and the tension of the cable are always observed.This power cable installation tensioning device has an adjustable tensioning wheel set spacing. The adjustment mechanism can adapt to cables of different diameters. The scale on the device can make the tension during the tensioning operation more intuitive, avoiding damage to the cable due to excessive tension and limiting the cable position, which can effectively prevent the cable from detaching from the tensioning wheel.
[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A tensioning device for power cable installation, comprising a tensioning box, characterized in that: The rear inner wall of the tensioning box is provided with a first U-shaped frame and a controller, the inner side wall of the first U-shaped frame is provided with a first slide groove, the first slide groove is clamped with the first slider and the second slide groove, the front sides of the first slider and the second slide groove are respectively provided with a first fixing rod and a second fixing rod, the outer surface of the first fixing rod is sleeved with the first fixed pulley, and the outer surface of the second fixing rod is sleeved with the second fixed pulley, the rear inner side wall of the tensioning box is provided with a protective box, the interior of the protective box is provided with a motor and a battery, the output end of the motor is provided with a first bevel gear, the top wall of the protective box is rotatably connected to the lead screw through a bearing, the bottom of the lead screw is provided with a second bevel gear, the rear inner side wall of the tensioning box is provided with a second U-shaped frame, the interior of the second U-shaped frame is provided with a second slide groove, the second slide groove is clamped with the third slider, the front side of the second U-shaped frame is provided with a third fixing rod, and the front side of the third slider is provided with a fourth fixing rod.
2. A tensioning device for power cable installation according to claim 1, characterized in that: The front side of the first U-shaped frame is marked with a scale, and the top of the first sliding block is provided with a pointer.
3. A tensioning device for power cable installation according to claim 1, characterized in that: The first bevel gear is meshed with the second bevel gear, the first slider is transmission-connected to the outer surface of the lead screw, and the other end of the lead screw is rotationally connected to the inside of the first U-shaped frame through a bearing.
4. A tensioning device for power cable installation according to claim 1, characterized in that: A first groove is provided inside the first U-shaped frame, a first pull rod is provided inside the first groove, a first baffle is welded to the outer surface of the first pull rod, a first spring is provided on one side of the first baffle, and the other end of the first spring is provided on the inner side wall of the first U-shaped frame, a first through hole is provided inside the second slider, the inner diameter of the first through hole is slightly larger than the diameter of the first pull rod, and there are a plurality of first through holes, which are evenly distributed inside the second slider.
5. A tensioning device for power cable installation according to claim 1, characterized in that: The outer surface of the third fixed rod is sleeved with the third fixed pulley, the outer surface of the fourth fixed rod is sleeved with the fourth fixed pulley, one end of the second fixed rod and the third fixed rod are both provided with a first support plate, the interior of the first support rod is rotatably connected to a T-shaped rod through a bearing, the outer surface of the T-shaped rod is sleeved with the first rotating cylinder, and the interior of the T-shaped rod is inserted with a connecting rod.
6. A tensioning device for power cable installation according to claim 5, characterized in that: A card box is provided at one end of the first fixing rod and the fourth fixing rod, a second groove is opened inside the card box, a second pull rod is provided in the second groove, a wedge block is provided at one end of the second pull rod, a second baffle is welded on the outer surface of the second pull rod, a second spring is provided on one side of the second baffle, and one end of the second spring is provided on the inner wall of the card box.
7. A tensioning device for power cable installation according to claim 1, characterized in that: A third groove is provided inside the second U-shaped frame, a third pull rod is provided inside the third groove, a third baffle is welded to the outer surface of the third pull rod, a third spring is provided on one side of the third baffle, and the other end of the third spring is provided on the inner side wall of the second U-shaped frame, a second through hole is provided inside the fourth slider, the inner diameter of the second through hole is slightly larger than the diameter of the third pull rod, and there are a number of second through holes that are evenly distributed inside the third slider.
8. A tensioning device for power cable installation according to claim 1, characterized in that: The left and right walls of the tensioning box are both provided with square grooves, and the left and right walls of the tensioning box are both rotatably connected to the second rotating drum through bearings.