Cable pulling device

Abstract

The invention relates to a cable traction device which comprises a first traction belt assembly and a second traction belt assembly which are arranged in parallel in a spaced mode, the first traction belt assembly and the second traction belt assembly are obliquely arranged relative to the horizontal direction, and the first traction belt assembly and the second traction belt assembly are used for clamping a traction cable and providing traction force for the cable. Under the same occupied area, the clamping area between the first traction belt assembly and the second traction belt assembly can be longer, and the contact area with the cable is increased. Due to the gravity of the cable between the first traction belt assembly and the second traction belt assembly, even if the friction force at the front end of a pressing area between the first traction belt assembly and the second traction belt assembly is enough to provide pulling force, the cable can be pulled out. The friction force at the rear end of the compression area can still interact with the gravity of the cable to straighten the cable between the front end and the rear end, so that the cable at each position is kept in a lengthened state as far as possible to provide traction tension for the load end, and the traction stability is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of cable production equipment, and more specifically, to a cable pulling device. Background Technology

[0002] Chinese Patent Publication No. CN204701098U discloses a cable pulling device for a cable sheathing production line, which includes a frame and a clamping mechanism disposed on the frame and fixed relative to the frame. The clamping mechanism includes an upper pressing component, a lower pressing component, and a driving mechanism. The driving mechanism enables the upper pressing component and the lower pressing component to apply a predetermined clamping force to the cable.

[0003] Specifically, the upper pressing assembly includes two upper guide rollers and upper pressing belts fitted at both ends onto the two upper guide rollers, and the lower pressing assembly includes two lower guide rollers and lower pressing belts fitted at both ends onto the two lower guide rollers. Both the upper and lower pressing belts are arranged horizontally. The cable pulling device also includes a central guide wheel, which guides the cable horizontally between the upper and lower pressing belts. The upper and lower pressing belts press the cable together, providing tension to the cable through friction.

[0004] However, because there is a horizontal clamping area between the upper and lower clamping bands, the cable is prone to bending horizontally within this area, such as in an arc or S-shape, making it difficult to ensure the cable remains taut. This is because the ends of the cable from the load end to the point where it enters the clamping bands are stretched by the load and the friction of the clamping bands. When the stretched cable enters between the upper and lower clamping bands, if the friction at the front end of the clamping area is sufficient, the cable at the rear end of the clamping area will spring back. This springback process easily causes the cable between the upper and lower clamping bands to bend. When the load fluctuates significantly, the bent portion of the cable cannot provide effective tension, leading to unstable traction in the cable pulling device. Summary of the Invention

[0005] The purpose of this invention is to provide a cable pulling device that can effectively improve the stability of the traction cable.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0007] The present invention provides a cable pulling device, which includes a first traction belt assembly and a second traction belt assembly arranged in parallel at intervals, and both the first traction belt assembly and the second traction belt assembly are arranged at an angle relative to the horizontal direction. The first traction belt assembly and the second traction belt assembly are used to clamp the cable and provide traction force to the cable.

[0008] In some embodiments of this application, the cable-pulling device further includes a frame, a mounting frame, and two connecting rods;

[0009] The first traction belt assembly is connected to the frame;

[0010] The second traction belt assembly is connected to the mounting bracket;

[0011] The two connecting rods are arranged in parallel intervals, and the two ends of the connecting rods are respectively hinged to the frame and the mounting frame;

[0012] The frame, the mounting bracket, and the two connecting rods are combined to form a parallel four-bar linkage.

[0013] In some embodiments of this application, the first traction belt assembly includes a first pulley, a second pulley, and a first traction belt;

[0014] The first pulley and the second pulley are spaced apart in the horizontal direction and have a height difference in the vertical direction;

[0015] The two ends of the first traction belt are respectively wound around the first pulley and the second pulley;

[0016] The second traction belt assembly includes a third pulley, a fourth pulley, and a second traction belt;

[0017] The third pulley and the fourth pulley are spaced apart in the horizontal direction and have a height difference in the vertical direction;

[0018] The two ends of the second traction belt are respectively wound around the third pulley and the fourth pulley.

[0019] In some embodiments of this application, the cable-pulling device further includes a drive component;

[0020] The drive assembly includes a first gear, a second gear, and a drive element;

[0021] The first gear meshes with the second gear;

[0022] The first gear is connected to the second pulley, and the first gear and the second pulley rotate in the same direction;

[0023] The second gear is connected to the fourth pulley, and the second gear and the fourth pulley rotate in the same direction;

[0024] The driving component drives the first gear to rotate or drives the second gear to rotate.

[0025] In some embodiments of this application, the drive assembly further includes a first drive wheel, a second drive wheel, a first drive belt, a third drive wheel, a fourth drive wheel, and a second drive belt;

[0026] The first transmission wheel is coaxially connected to the first gear;

[0027] The second transmission wheel is coaxially connected to the second pulley;

[0028] The two ends of the first transmission belt are respectively wound around the first transmission wheel and the second transmission wheel;

[0029] One of the connecting rods has a first hinge end and a second hinge end at its two ends, the first hinge end being hinged to the frame and the second hinge end being hinged to the mounting bracket.

[0030] The third transmission wheel is coaxially connected to the second gear, and the third transmission wheel is arranged coaxially with the first hinge end;

[0031] The fourth transmission wheel is coaxially connected to the fourth pulley, and the fourth transmission wheel is coaxially arranged with the second hinge end.

[0032] In some embodiments of this application, the cable-pulling device further includes an adjustment component;

[0033] The adjustment assembly provides a horizontal driving force to the mounting frame, causing the second traction belt assembly on the mounting frame to move closer to or further away from the first traction belt assembly on the frame as the linkage rotates.

[0034] In some embodiments of this application, the adjustment assembly includes an adjustment block and an adjustment member;

[0035] The adjusting block is vertically and flexibly connected to the frame;

[0036] The adjusting component includes an adjusting rod and a cylinder for driving the adjusting rod to extend and retract. The adjusting rod is arranged horizontally and is hinged to the mounting bracket. The cylinder is connected to the adjusting block.

[0037] When the cylinder drives the adjusting rod to extend, the second traction belt assembly on the mounting bracket approaches the first traction belt assembly on the frame under the rotation of the connecting rod;

[0038] When the cylinder drives the adjusting rod to shorten, the second traction belt assembly on the mounting bracket moves away from the first traction belt assembly on the frame under the rotation of the connecting rod.

[0039] In some embodiments of this application, the adjustment assembly further includes an adapter block and a guide rod;

[0040] The adapter block includes a web and two wing plates respectively connected to both sides of the web;

[0041] The adjusting rod is connected to the web plate;

[0042] The adjusting block is provided with horizontally arranged guide holes;

[0043] The guide rod is movably inserted into the guide hole and connected to the web plate;

[0044] The mounting bracket is positioned between the two web plates and hinged to them.

[0045] In some embodiments of this application, the frame is provided with a first through hole and a second through hole;

[0046] The first through hole is provided at the first end of the first traction belt assembly and the second traction belt assembly, and is used for the cable to pass through it before entering the first traction belt assembly and the second traction belt assembly;

[0047] The second through hole is provided at the end of the first traction belt assembly and the second traction belt assembly, and is used for the cable to pass through after exiting the first traction belt assembly and the second traction belt assembly.

[0048] In some embodiments of this application, the mounting bracket is provided with a handle.

[0049] As can be seen from the above technical solutions, the embodiments of the present invention have at least the following advantages and positive effects:

[0050] In the cable-pulling device of this embodiment, both the first traction belt assembly and the second traction belt assembly are arranged at an angle relative to the horizontal direction, compared to a scheme where the traction belt assembly is arranged horizontally. On the one hand, within the same floor space, the clamping area between the first traction belt assembly and the second traction belt assembly can be longer. For example, the cable forms a larger wrap angle at the end of the traction belt assembly, increasing the contact area with the cable and thus improving the stability of the traction cable.

[0051] On the other hand, the cable located between the first traction belt assembly and the second traction belt assembly has its own gravity. Even if the friction at the front end of the pressing area between the first traction belt assembly and the second traction belt assembly is sufficient to provide tension, the friction at the rear end of the pressing area can still interact with the gravity of the cable to straighten the cable between the front and rear ends. This keeps the cable at each position as long as possible to provide traction force to the load end, which can effectively improve the stability of the traction cable. Attached Figure Description

[0052] Various objects, features, and advantages of the invention will become more apparent from the following detailed description of preferred embodiments of the invention, taken in conjunction with the accompanying drawings. The drawings are merely illustrative of the invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts.

[0053] in:

[0054] Figure 1This is a schematic diagram of a cable-pulling device according to an exemplary embodiment.

[0055] Figure 2 yes Figure 1 A schematic diagram of the structure from another angle.

[0056] Figure 3 yes Figure 1 A structural diagram from another angle.

[0057] Figure 4 yes Figure 3 A magnified structural diagram of region A in the middle.

[0058] Figure 5 This is a schematic diagram showing the cable forming a wrap angle at the end of the traction belt assembly.

[0059] The reference numerals in the attached drawings are explained as follows: 1. First traction belt assembly; 11. First pulley; 12. Second pulley; 13. First traction belt; 2. Second traction belt assembly; 21. Third pulley; 22. Fourth pulley; 23. Second traction belt; 3. Frame; 31. Linear guide rail; 32. First wire harness post; 33. Second wire harness post; 4. Mounting bracket; 41. Handle; 5. Connecting rod; 6. Drive assembly; 61. First gear; 62. Second gear; 63. Drive component; 64. First transmission wheel; 65. Second transmission wheel; 66. First transmission belt; 67. Third transmission wheel; 68. Fourth transmission wheel; 69. Second transmission belt; 7. Adjustment assembly; 71. Adjustment block; 72. Adjustment component; 721. Adjustment rod; 722. Cylinder; 73. Slider; 74. Adapter block; 741. Web plate; 742. Wing plate; 75. Guide rod; 100. Cable. Detailed Implementation

[0060] Although the invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the invention and is not intended to limit the invention to what is described herein.

[0061] Therefore, a feature pointed out in this specification is used to illustrate one feature of one embodiment of the invention, and does not imply that every embodiment of the invention must have the described feature. Furthermore, it should be noted that this specification describes many features. While certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0062] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of the invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.

[0063] This invention provides a cable pulling device, which is used to provide traction force to a cable to drive its movement. Figure 1 The arrows in the diagram indicate the direction of cable movement.

[0064] Please see Figures 1 to 4 The cable pulling device includes a first traction belt assembly 1 and a second traction belt assembly 2 arranged in parallel at intervals, and both the first traction belt assembly 1 and the second traction belt assembly 2 are arranged at an angle relative to the horizontal direction. The first traction belt assembly 1 and the second traction belt assembly 2 are used to clamp the cable and provide traction force to the cable 100.

[0065] Through the above structural design, by having both the first traction belt assembly 1 and the second traction belt assembly 2 arranged at an angle relative to the horizontal direction, compared to a scheme where the traction belt assemblies are arranged horizontally, on the one hand, the clamping area between the first traction belt assembly 1 and the second traction belt assembly 2 can be longer within the same floor space. For example, the cable 100 forms a larger wrap angle at the end of the traction belt assembly, increasing the contact area with the cable 100, thereby improving the stability of the traction cable 100.

[0066] On the other hand, the cable 100 located between the first traction belt assembly 1 and the second traction belt assembly 2 has its own gravity. Even if the friction at the front end of the pressing area between the first traction belt assembly 1 and the second traction belt assembly 2 is sufficient to provide tension, the friction at the rear end of the pressing area can still interact with the gravity of the cable 100 to straighten the cable 100 between the front and rear ends. This keeps the cable 100 at each position as long as possible to provide traction force to the load end, which can effectively improve the stability of the traction cable 100.

[0067] In this embodiment, both the first traction belt assembly 1 and the second traction belt assembly 2 are arranged at a 45-degree angle relative to the horizontal direction.

[0068] The cable-pulling device also includes a frame 3, a mounting frame 4, and two connecting rods 5. A first traction belt assembly 1 is connected to the frame 3. A second traction belt assembly 2 is connected to the mounting frame 4. The two connecting rods 5 are arranged in parallel intervals, with their ends hinged to the frame 3 and the mounting frame 4, respectively. The frame 3, the mounting frame 4, and the two connecting rods 5 combine to form a parallel four-bar linkage. When the connecting rods 5 rotate counterclockwise, the mounting frame 4 moves away from the frame 3, increasing the distance between the first and second traction assemblies, facilitating the placement of the cable 100 onto the first traction assembly. When the connecting rods 5 rotate clockwise, the mounting frame 4 moves closer to the frame 3, decreasing the distance between the first and second traction assemblies, and pressing the cable 100 between the first and second traction assemblies.

[0069] The design of the parallel four-bar linkage 5, composed of the frame 3, mounting bracket 4, and two connecting rods 5, ensures that the first traction component remains parallel to the second traction component during rotation, maintaining good contact and providing traction force when used with cables 100 of different diameters. This improves the applicability to cables 100 of varying diameters. Furthermore, the parallel four-bar linkage 5 design guarantees uniform contact between the first traction component, the second traction component, and the cable 100.

[0070] It is worth mentioning that, because the first traction component is arranged at an angle, when the cable 100 is placed on the first traction component, it is straightened under the action of gravity. In contrast, in related technologies, because the lower tensioning band is arranged horizontally, the cable 100 needs to be manually straightened when placed on the lower tensioning band.

[0071] The first traction belt assembly 1 includes a first pulley 11, a second pulley 12, and a first traction belt 13. The first pulley 11 and the second pulley 12 are spaced apart in the horizontal direction and have a height difference in the vertical direction. The two ends of the first traction belt 13 are respectively wound around the first pulley 11 and the second pulley 12. The second traction belt assembly 2 includes a third pulley 21, a fourth pulley 22, and a second traction belt 23. The third pulley 21 and the fourth pulley 22 are spaced apart in the horizontal direction and have a height difference in the vertical direction. The two ends of the second traction belt 23 are respectively wound around the third pulley 21 and the fourth pulley 22.

[0072] The rotation of the first pulley 11 and the second pulley 12 causes the first traction belt 13 to move, and the rotation of the third pulley 21 and the fourth pulley 22 causes the second traction belt 23 to move, thereby pulling the cable 100 to move.

[0073] It should be noted that, since both the first traction belt 13 and the second traction belt 23 are arranged at an angle, the cable 100 forms a larger wrap angle with the pulley under the action of tension and / or gravity. After being bent at the second pulley 12 under the action of tension at both ends, the cable 100 forms a larger wrap angle with the second pulley 12, generating positive pressure. This increases the contact area with the first traction belt 13 and the second traction belt 23, provides a longer friction surface, increases the friction force, and makes the traction force of the first traction belt 13 and the second traction belt 23 on the cable 100 more stable.

[0074] The cable-pulling device also includes a drive assembly 6. The drive assembly 6 includes a first gear 61, a second gear 62, and a drive member 63. The first gear 61 meshes with the second gear 62. The first gear 61 is driven by a second pulley 12, and the first gear 61 and the second pulley 12 rotate in the same direction. The second gear 62 is driven by a fourth pulley 22, and the second gear 62 and the fourth pulley 22 rotate in the same direction. The drive member 63 drives the first gear 61 to rotate or drives the second gear 62 to rotate.

[0075] The first gear 61 and the second gear 62 rotate in opposite directions and drive the second pulley 12 and the fourth pulley 22 to rotate synchronously. That is, both the first traction belt 13 and the second traction belt 23 have driving force, which can provide greater traction force to the cable 100 compared with the single-sided traction belt driving method.

[0076] The drive assembly 6 also includes a first drive wheel 64, a second drive wheel 65, a first drive belt 66, a third drive wheel 67, a fourth drive wheel 68, and a second drive belt 69. The first drive wheel 64 is coaxially connected to the first gear 61. The second drive wheel 65 is coaxially connected to the second pulley 12. The two ends of the first drive belt 66 are respectively wound around the first drive wheel 64 and the second drive wheel 65. The two ends of a connecting rod 5 are a first hinge end and a second hinge end, respectively. The first hinge end is hinged to the frame 3, and the second hinge end is hinged to the mounting bracket 4. The third drive wheel 67 is coaxially connected to the second gear 62, and the third drive wheel 67 is coaxially arranged with the first hinge end. The fourth drive wheel 68 is coaxially connected to the fourth pulley 22, and the fourth drive wheel 68 is coaxially arranged with the second hinge end.

[0077] The first gear 61 and the first transmission wheel 64 rotate synchronously. The first transmission belt 66 transmits torque between the first transmission wheel 64 and the second transmission wheel 65, causing the second transmission wheel 65 to rotate synchronously. The second transmission wheel 65 then rotates synchronously with the second pulley 12, causing the first traction belt 13 to move. The second gear 62 and the third transmission wheel 67 rotate synchronously. The second transmission belt 69 transmits torque between the third transmission wheel 67 and the fourth transmission wheel 68, causing the fourth transmission wheel 68 to rotate synchronously. The fourth transmission wheel 68 then rotates synchronously with the fourth pulley 22, causing the second traction belt 23 to move.

[0078] Furthermore, the third drive wheel 67 is coaxially arranged with the first hinge end, and the fourth drive wheel 68 is coaxially arranged with the second hinge end. When the connecting rod 5 rotates, the second drive belt 69 can maintain stable torque transmission on the third drive wheel 67 and the fourth drive wheel 68.

[0079] The drive assembly 6 also includes a drive element 63, which is driven by either the first gear 61 or the second gear 62. The drive element 63 can be a motor. By changing the driving force of the motor, the moving speed of the first traction belt 13 and the second traction belt 23 can be changed.

[0080] In this embodiment, the first pulley 11, the second pulley 12, the third pulley 21, the fourth pulley 22, the first transmission wheel 64, the second transmission wheel 65, the third transmission wheel 67, and the fourth transmission wheel 68 are all gears. The first traction belt 13, the second traction belt 23, the first transmission belt 66, and the second transmission belt 69 are all synchronous toothed belts. This ensures that slippage does not occur inside the first traction assembly, the second traction assembly, and the drive assembly 6.

[0081] The cable pulling device also includes an adjustment assembly 7. The adjustment assembly 7 provides a horizontal driving force to the mounting frame 4 so that the second traction belt assembly 2 on the mounting frame 4 moves closer to or further away from the first traction belt assembly 1 on the frame 3 due to the rotation of the connecting rod 5.

[0082] The adjusting assembly 7 includes an adjusting block 71 and an adjusting member 72. The adjusting block 71 is vertically and vertically connected to the frame 3. The adjusting member 72 includes an adjusting rod 721 and a cylinder 722 that drives the adjusting rod 721 to extend or retract. The adjusting rod 721 is horizontally arranged and hinged to the mounting bracket 4. The cylinder 722 is connected to the adjusting block 71. When the cylinder 722 drives the adjusting rod 721 to extend, the second traction belt assembly 2 on the mounting bracket 4 moves closer to the first traction belt assembly 1 on the frame 3 due to the rotation of the connecting rod. When the cylinder 722 drives the adjusting rod 721 to retract, the second traction belt assembly 2 on the mounting bracket 4 moves away from the first traction belt assembly 1 on the frame 3 due to the rotation of the connecting rod. The connecting rod 5 supports the height of the adjusting block 71. That is, the distance between the first traction belt assembly 1 and the second traction belt assembly 2 can be adjusted by extending and retracting the rod. At the same time, the adjusting block 71 will rise or fall relative to the frame 3 as the connecting rod 5 rotates. Changing the driving force of the adjusting element 72 can alter the pressure of the first traction belt 13 and the second traction belt 23 on the cable 100, thereby changing the magnitude of the frictional force, i.e., the traction force. Alternatively, the traction force can be kept constant. The adjusting element 72 can be a gas spring.

[0083] The adjusting block 71 is vertically connected to the frame 3 via a guide rail assembly. Specifically, the guide rail assembly includes a linear guide rail 31 connected to the frame 3 and a slider 73 connected to the adjusting block 71. The slider 73 is movably connected to the linear guide rail 31.

[0084] The adjusting assembly 7 also includes an adapter block 74 and a guide rod 75. The adapter block 74 includes a web 741 and two wing plates 742 respectively connected to both sides of the web 741. The adjusting rod 721 is connected to the web 741. The adjusting block 71 is provided with a horizontally arranged guide hole. The guide rod 75 is movably inserted into the guide hole and connected to the web 741. The mounting bracket 4 is disposed between the two web plates 741 and hinged to the two web plates 741.

[0085] The telescopic movement of the guide rod 75 drives the web plate 741 to move, and the cooperation between the guide rod 75 and the guide hole makes the telescopic trajectory of the guide rod 75 more stable. The mounting bracket 4 is hinged to the two web plates 741, making the rotation of the mounting bracket 4 more stable.

[0086] The mounting bracket 4 is equipped with a handle 41. When it is necessary for the first traction belt 13 and the second traction belt 23 to apply greater pressure to the cable 100, the handle 41 can be manually used to press down the mounting bracket 4 to increase the pressure of the first traction belt 13 and the second traction belt 23 on the cable 100.

[0087] The frame 3 is provided with a first through hole and a second through hole. The first through hole is located at the beginning of the first traction belt assembly 1 and the second traction belt assembly 2, and is used for the cable 100 to pass through it before entering the first traction belt assembly 1 and the second traction belt assembly 2. The second through hole is located at the end of the first traction belt assembly 1 and the second traction belt assembly 2, and is used for the cable 100 to pass through it after exiting the first traction belt assembly 1 and the second traction belt assembly 2.

[0088] The first and second perforations serve to manage the cables, ensuring that the cables 100 entering and exiting the first traction belt assembly 1 and the second traction belt assembly 2 remain straight.

[0089] In this embodiment, the frame 3 is provided with two first wire bundle posts 32 and two second wire bundle posts 33. There is a spacing between the two first wire bundle posts 32 to form a first through hole, and there is a spacing between the two second wire bundle posts 33 to form a second through hole.

[0090] Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since the invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A cable-pulling device, characterized in that, It includes a first traction belt assembly and a second traction belt assembly arranged in parallel at intervals, and both the first traction belt assembly and the second traction belt assembly are arranged at an angle relative to the horizontal direction. The first traction belt assembly and the second traction belt assembly are used to clamp the cable and provide traction force to the cable.

2. The cable-pulling device according to claim 1, characterized in that, The cable pulling device also includes a frame, a mounting frame, and two connecting rods; The first traction belt assembly is connected to the frame; The second traction belt assembly is connected to the mounting bracket; The two connecting rods are arranged in parallel intervals, and the two ends of the connecting rods are respectively hinged to the frame and the mounting frame; The frame, the mounting bracket, and the two connecting rods are combined to form a parallel four-bar linkage.

3. The cable-pulling device according to claim 2, characterized in that, The first traction belt assembly includes a first pulley, a second pulley, and a first traction belt; The first pulley and the second pulley are spaced apart in the horizontal direction and have a height difference in the vertical direction; The two ends of the first traction belt are respectively wound around the first pulley and the second pulley; The second traction belt assembly includes a third pulley, a fourth pulley, and a second traction belt; The third pulley and the fourth pulley are spaced apart in the horizontal direction and have a height difference in the vertical direction; The two ends of the second traction belt are respectively wound around the third pulley and the fourth pulley.

4. The cable-pulling device according to claim 3, characterized in that, The cable pulling device also includes a drive assembly; The drive assembly includes a first gear, a second gear, and a drive element; The first gear meshes with the second gear; The first gear is connected to the second pulley, and the first gear and the second pulley rotate in the same direction; The second gear is connected to the fourth pulley, and the second gear and the fourth pulley rotate in the same direction; The driving component drives the first gear to rotate or drives the second gear to rotate.

5. The cable-pulling device according to claim 4, characterized in that, The drive assembly further includes a first drive wheel, a second drive wheel, a first drive belt, a third drive wheel, a fourth drive wheel, and a second drive belt; The first transmission wheel is coaxially connected to the first gear; The second transmission wheel is coaxially connected to the second pulley; The two ends of the first transmission belt are respectively wound around the first transmission wheel and the second transmission wheel; One of the connecting rods has a first hinge end and a second hinge end at its two ends, the first hinge end being hinged to the frame and the second hinge end being hinged to the mounting bracket. The third transmission wheel is coaxially connected to the second gear, and the third transmission wheel is arranged coaxially with the first hinge end; The fourth transmission wheel is coaxially connected to the fourth pulley, and the fourth transmission wheel is coaxially arranged with the second hinge end.

6. The cable-pulling device according to claim 2, characterized in that, The cable pulling device also includes an adjustment component; The adjustment assembly provides a horizontal driving force to the mounting frame, causing the second traction belt assembly on the mounting frame to move closer to or further away from the first traction belt assembly on the frame as the linkage rotates.

7. The cable-pulling device according to claim 6, characterized in that, The adjustment assembly includes an adjustment block and an adjustment element; The adjusting block is vertically and flexibly connected to the frame; The adjusting component includes an adjusting rod and a cylinder for driving the adjusting rod to extend and retract. The adjusting rod is arranged horizontally and is hinged to the mounting bracket. The cylinder is connected to the adjusting block. When the cylinder drives the adjusting rod to extend, the second traction belt assembly on the mounting bracket approaches the first traction belt assembly on the frame under the rotation of the connecting rod; When the cylinder drives the adjusting rod to shorten, the second traction belt assembly on the mounting bracket moves away from the first traction belt assembly on the frame under the rotation of the connecting rod.

8. The cable-pulling device according to claim 7, characterized in that, The adjustment assembly also includes an adapter block and a guide rod; The adapter block includes a web and two wing plates respectively connected to both sides of the web; The adjusting rod is connected to the web plate; The adjusting block is provided with horizontally arranged guide holes; The guide rod is movably inserted into the guide hole and connected to the web plate; The mounting bracket is positioned between the two web plates and hinged to them.

9. The cable-pulling device according to claim 2, characterized in that, The frame is provided with a first through hole and a second through hole; The first through hole is provided at the first end of the first traction belt assembly and the second traction belt assembly, and is used for the cable to pass through it before entering the first traction belt assembly and the second traction belt assembly; The second through hole is provided at the end of the first traction belt assembly and the second traction belt assembly, and is used for the cable to pass through after exiting the first traction belt assembly and the second traction belt assembly.

10. The cable-pulling device according to claim 2, characterized in that, The mounting bracket is equipped with a handle.

Images