A convenient wire drawing auxiliary device

Abstract

This application relates to a convenient cable pulling auxiliary device, belonging to the technical field of building auxiliary tools. It includes a cable reel, a fixed shaft, an external bracket, a connecting rod, and an internal support frame. The fixed shaft is equipped with a rotating wheel and a rotating handle. The cable reel is equipped with a rolling shaft and a ring. The ring is fixed to the outer wall of the cable reel for securing the end of the cable being pulled from the conduit. One end of the rolling shaft is fixed to one end of the cable reel, and the other end passes through the fixed shaft and is fixed to the center of the rotating wheel. The rolling shaft rotates relative to the fixed shaft. The rotating handle is fixed to the rotating wheel. One end of the connecting rod is fixedly connected to the outer wall of the fixed shaft. The internal support frame is located at the end of the connecting rod away from the fixed shaft and is used for the connecting rod to be inserted into a switch box in the wall. The external bracket, in conjunction with the internal support frame, ensures the fixed shaft is stably placed on the outer wall. This application improves the efficiency and safety of pulling cables from discarded conduits.

Description

Technical Field

[0001] This application relates to the technical field of building aids, and in particular to a convenient wire-drawing aid device. Background Technology

[0002] Currently, during renovation and construction, it is often necessary to remove old aluminum or copper wires from conduits, both to prevent safety accidents and to conserve resources.

[0003] Since it is a renovation project, the conduits are all buried in the walls. The switch box needs to be removed from the switch to expose one end of the conduit buried in the wall, so that the wire can be pulled out. The traditional method of pulling out the wire mainly relies on manual operation, such as using pliers to directly clamp one end of the wire and pull it out.

[0004] Although this method is simple, in practice it is often difficult to pull out the internal wires due to problems such as aging of the lines, bending of the conduit or jamming of the lines. It is not only inefficient, but also has the drawback of the line breaking during the pulling process, causing personnel injury. Utility Model Content

[0005] To improve the efficiency and safety of pulling out waste conduits, this application provides a convenient auxiliary device for wire pulling.

[0006] The present application provides a convenient wire-drawing auxiliary device using the following technical solution:

[0007] A convenient cable pulling auxiliary device includes a cable reel, a fixed shaft, an external bracket, a connecting rod, and an internal support frame. The fixed shaft is equipped with a rotating wheel and a rotating handle. The cable reel is equipped with a rolling shaft and a ring. The ring is fixed to the outer wall of the cable reel for fixing the end of the inner cable pulled out from the conduit. One end of the rolling shaft is fixed to one end of the cable reel, and the other end passes through the fixed shaft and is fixed to the center of the rotating wheel. The rolling shaft rotates relative to the fixed shaft. The rotating handle is fixed to the rotating wheel. One end of the connecting rod is fixedly connected to the outer wall of the fixed shaft. The internal support frame is located at the end of the connecting rod away from the fixed shaft. The internal support frame is used for the installation of the connecting rod in a switch box embedded in the wall. The external bracket, in conjunction with the internal support frame, is used to stably place the fixed shaft on the outer wall.

[0008] By adopting the above technical solution, a rotating handle drives a rotating wheel, which in turn drives a winding shaft to rotate, thereby extracting waste internal wires. A circular ring is used to fix one end of the internal wire, ensuring that the wire will not come loose during extraction. The self-rotating design of the rolling shaft and the fixed shaft reduces friction during rotation, making the extraction operation smoother. The cooperation between the internal support frame and the external bracket stably mounts the equipment at the switch box and on the outer wall, providing solid support for the extraction process and preventing equipment shaking from affecting extraction efficiency and safety.

[0009] Optionally, the inner support frame includes legs, springs, and a round rod. One end of the leg is rotatably connected to the round rod, and the other end swings about the round rod as a rotation axis. Multiple legs are provided and symmetrically distributed on both sides of the round rod. The spring is located between two symmetrically arranged legs to push the corresponding two legs to open. The end of the connecting rod away from the fixed axis is fixedly connected to the round rod.

[0010] By adopting the above technical solution, the inner support frame is inserted into the pre-drilled hole in the wall after the switch box is disassembled. A spring pushes the symmetrical legs to open, ensuring a tight fit between the legs and the inner wall of the hole after the switch box is disassembled, thus securely installing the inner support frame inside the switch box. This structural design can accommodate switch boxes of different specifications, is easy and secure to install, further enhancing the overall stability of the equipment and ensuring that the equipment will not shake or fall off during the cable pulling process due to insecure installation.

[0011] Optionally, a roller is provided between adjacent legs along the length of the rod. The roller is rotatably mounted on the leg, and the outer wall of the roller is used to roll and abut against the inner thread pulled out of the conduit.

[0012] By adopting the above technical solution, the inner wire rolls against the outer wall of the roller during the wire pulling process. The rotation of the roller converts sliding friction into rolling friction, greatly reducing the frictional resistance between the inner wire and the equipment. This not only reduces the risk of inner wire breakage but also makes the wire pulling process smoother, further improving the wire pulling efficiency, while also reducing damage to the line caused by excessive friction.

[0013] Optionally, the external bracket includes a support rod and a pad. One end of the support rod is fixed to a fixed shaft, and the other end is fixed to the pad. The side of the pad facing away from the support rod is used to abut against the outer wall of the wall. Two external brackets are provided and symmetrically distributed on both sides of the fixed shaft.

[0014] By adopting the above technical solution, two symmetrically distributed external supports abut against the outer wall through pads, enhancing the stability of the equipment on the outer wall. The pads increase the contact area with the outer wall, making the force on the equipment more even and avoiding the problem of tilting or shaking caused by uneven force, thus providing a more stable support environment for cable pulling operations.

[0015] Optionally, the two peripheral brackets are distributed on the upper and lower sides of the fixed shaft.

[0016] By adopting the above technical solution, the external supports distributed on the upper and lower sides can better balance the weight of the equipment, making the equipment more stable in the vertical direction. This layout can effectively prevent the equipment from swaying or tilting due to gravity, especially when encountering greater resistance during the wire pulling process, it can better maintain the stability of the equipment and ensure the smooth progress of the wire pulling operation.

[0017] Optionally, a pointed cone is fixed on the pad, and the pointed cone is distributed on the side of the pad away from the external support.

[0018] By adopting the above technical solution, the pointed cone can embed into the surface of the outer wall, increasing the friction and fixing force between the pad and the outer wall, making the connection between the external bracket and the wall more secure. Even when the equipment is subjected to large tensile forces during the cable pulling process, it can effectively prevent the external bracket from sliding or shifting, further improving the overall stability and safety of the equipment.

[0019] Optionally, the support rod is a telescopic rod.

[0020] By adopting the above technical solution, the telescopic rod can be adjusted according to the distance between the switch box and the outer wall in the actual construction scenario, enabling the equipment to adapt to different installation depths and spatial positions. This adjustable design improves the applicability of the equipment. Whether in deep switch boxes or on walls of varying thicknesses, the stable installation and normal use of the equipment can be ensured by adjusting the length of the support rod, thus expanding the application range of the equipment.

[0021] Optionally, a rubber pad is fixed to the end of the support leg away from the round rod.

[0022] By adopting the above technical solution, the rubber pad has good elasticity and friction. The support foot contacts the inner wall of the switch box through the rubber pad, which can increase the friction between the support foot and the inner wall of the switch box, making the installation of the inner support frame more secure. On the other hand, the elasticity of the rubber pad can play a buffering role, reducing the damage to the switch box and the wall caused by the vibration of the equipment during the wire pulling process.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. High-efficiency wire pulling and stable support: The automatic wire pulling is achieved by rotating the handle to drive the winding shaft, replacing the traditional manual pulling and greatly improving the wire pulling efficiency; the internal support frame and the external bracket work together to form an internal and external clamping structure, which firmly installs the equipment on the switch box and the wall, preventing the equipment from shaking during wire pulling and ensuring operational safety and stability.

[0025] 2. Friction optimization and line protection: The rollers convert the sliding friction of the inner wire into rolling friction, reducing the resistance to wire pulling and line wear; the rubber pads and cones enhance the fixing force of the inner support frame and the external bracket, respectively, while buffering vibration, reducing the risk of line breakage, and protecting the conduit and wall structure;

[0026] 3. Flexible Adaptability and Convenient Operation: The telescopic rod allows for adjustment of the external bracket length to accommodate different wall thicknesses and switch box depths; the symmetrically distributed feet and spring structure automatically adapt to different switch box specifications; the pointed cone design enhances wall fixation; the overall equipment is easy to install and suitable for various renovation scenarios, reducing construction difficulty. Attached Figure Description

[0027] Figure 1 This is a schematic diagram illustrating the usage state of an embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the structure at the fixed shaft.

[0029] Figure 3 This is a partial structural diagram of the internal support frame.

[0030] In the diagram, 1. spool; 11. ring; 12. rolling shaft; 2. fixed shaft; 21. wheel; 22. rotating handle; 3. external bracket; 31. support rod; 32. pad; 4. connecting rod; 5. internal support frame; 51. support leg; 52. spring; 53. round rod; 6. roller; 7. cone; 8. rubber pad; 9. wall. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0032] This application discloses a convenient wire-drawing auxiliary device.

[0033] refer to Figure 1 A convenient wire-pulling auxiliary device includes a winding spool 1, a fixed shaft 2, an external bracket 3, a connecting rod 4, and an internal support frame 5. A ring 11 is fixed to the outer wall of the winding spool 1 for securing one end of the waste inner wire pulled from the conduit. A rolling shaft 12 is fixed to the center of one end of the winding spool 1. The other end of the rolling shaft 12 passes through the fixed shaft 2 and is coaxially rotatably connected to it. A rotating wheel 21 is fixed to the end of the rolling shaft 12, with the fixing point located at the center of the rotating wheel 21, i.e., the rotating wheel 21 is disc-shaped. A rotating handle 22 is vertically fixed to the edge of the rotating wheel 21, with the rotating handle 22 and the fixed shaft 2 distributed on both sides of the rotating wheel 21. The operator can drive the rotating wheel 21 to rotate by holding the rotating handle 22, thereby causing the rolling shaft 12 and the winding spool 1 to rotate synchronously, achieving the winding and pulling of the inner wire.

[0034] refer to Figure 1 and Figure 3The inner support frame 5 includes a spring 52, a round rod 53, and feet 51 symmetrically distributed on both sides of the round rod 53. In this embodiment, there are four feet 51 arranged symmetrically in pairs. One end of each foot 51 is rotatably connected to the round rod 53 via a pin, and the other end can swing around the round rod 53. The spring 52 is fixed between two symmetrically arranged feet 51. In its natural state, the spring 52 pushes the corresponding two feet 51 to open. A rubber pad 8 is fixed to the end of the foot 51 away from the round rod 53. When the rubber pad 8 abuts against the inner wall of the hole exposed after the switch box is disassembled, it can increase the friction and buffer vibration. Along the length of the round rod 53, a roller 6 is rotatably installed between adjacent feet 51 via a bearing. The outer wall of the roller 6 rolls against the pulled-out inner thread, converting sliding friction into rolling friction. One end of the connecting rod 4 is welded and fixed to the outer wall of the fixed shaft 2, and the other end is fixedly connected to the round rod 53 of the inner support frame 5.

[0035] refer to Figure 1 and Figure 2 The external support 3 includes a support rod 31 and a pad 32. Two support rods 31 and two pads 32 are symmetrically distributed on the upper and lower sides of the fixed shaft 2. The support rod 31 adopts a telescopic rod structure (such as a nested sleeve + bolt locking, not specifically shown in the attached diagram), and its length is adjustable to accommodate different wall thicknesses 9. One end of the support rod 31 is welded and fixed to the outer wall of the fixed shaft 2, and the other end is fixed perpendicularly to the pad 32. The pad 32 has evenly distributed pointed cones 7 on the side facing away from the support rod 31. The pointed cones 7 can be embedded into the outer wall of the wall 9 to enhance the fixing effect. Since the support rod 31 adopts a telescopic rod structure, the connecting rod 4 can also adopt a telescopic rod structure.

[0036] The implementation principle of a convenient wire-drawing auxiliary device according to an embodiment of this application is as follows: The round rod 53 of the inner support frame 5 is inserted into the pre-reserved hole in the wall 9 after the switch box is disassembled. The spring 52 pushes the support leg 51 to open, and the rubber pad 8 tightly abuts against the inner wall of the hole. The length of the support rod 31 of the external bracket 3 is adjusted so that the pointed cone 7 of the pad 32 is embedded in the outer wall of the wall 9, forming a stable structure with internal and external clamping. One end of the waste inner wire is passed through the gap of the roller 6 and tied and fixed to the ring 11 of the winding shaft 1. The construction worker holds the rotating handle 22 and rotates it clockwise. The rotating wheel 21 drives the winding shaft 1 to rotate through the rolling shaft 12. The inner wire is evenly wound on the winding shaft 1, and the roller 6 rotates synchronously to reduce frictional resistance. If the switch box is deep, the support rod 31 can be extended to make the pad 32 fit tightly against the wall. If the surface of the wall 9 is rough, the pointed cone 7 can enhance the fixing force and ensure that the equipment does not shift during wire pulling. This equipment replaces manual pulling with mechanical winding. The rotating handle 22 drives the winding shaft 1 to rotate, winding the inner wire in an orderly manner to reduce wire pulling resistance. The spring support feet 51 of the inner support frame 5 and the pointed cone pad 32 of the outer support 3 form a stable "inner support and outer abutment" structure to ensure that the equipment does not shake during wire pulling. The roller 6 converts sliding friction into rolling friction, and the rubber pad 8 buffers vibration, jointly protecting the inner wire from breakage. It is suitable for the extraction of old wires from various conduits during decoration and renovation, improving construction efficiency and safety.

[0037] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A handy thread drawing aid device comprising a thread reel (1), characterized in that: The utility model also includes fixed axle (2), external support (3), connecting rod (4) and inner support frame (5), fixed axle (2) is provided with rotating wheel (21) and rotary handle (22), winding shaft (1) is provided with rolling shaft (12) and ring (11), ring (11) is fixed on the outer wall of winding shaft (1) and is used for fixing with the one end of inner threading drawn out in the wire tube, one end of rolling shaft (12) is fixed with winding shaft (1), and the other end is fixed with the center of rotating wheel (21) after penetrating fixed axle (2), and rolling shaft (12) is arranged relative to fixed axle (2) and rotates, and rotary handle (22) is fixed on rotating wheel (21), one end of connecting rod (4) is fixedly connected with the outer wall of fixed axle (2), and inner support frame (5) is located at the one end of connecting rod (4) away from fixed axle (2), and inner support frame (5) is used for the installation of connecting rod (4) and is inserted in the switch box of wall body (9), and external support (3) is used for the stable placement of fixed axle (2) on the outer wall of wall body (9) in cooperation with inner support frame (5).

2. A convenient thread pulling assist device according to claim 1, characterized in that: The inner support frame (5) includes a support leg (51), a spring (52), and a circular rod (53). One end of the support leg (51) is rotatably connected to the circular rod (53), and the other end swings around the circular rod (53) as the rotation axis. Multiple support legs (51) are symmetrically arranged on both sides of the circular rod (53). The spring (52) is located between the two symmetrically arranged support legs (51) to push the two support legs (51) to an open state. The end of the connecting rod (4) away from the fixed axle (2) is fixedly connected to the circular rod (53).

3. A convenient thread pulling assist device according to claim 2, characterized in that: Along the length direction of the circular rod (53), a roller (6) is arranged between adjacent support legs (51). The roller (6) is rotatably arranged on the support leg (51), and the outer wall of the roller (6) is used for rolling contact with the inner threading drawn out from the wire tube.

4. A convenient thread pulling assist device according to claim 1, characterized in that: The external support (3) includes a support rod (31) and a backing plate (32). One end of the support rod (31) is fixed to the fixed axle (2), and the other end is fixed to the backing plate (32). The side of the backing plate (32) away from the support rod (31) is used for abutting against the outer wall of the wall body (9). Two external supports (3) are symmetrically arranged on both sides of the fixed axle (2).

5. A convenient thread pulling assist device according to claim 4, characterized in that: The two external supports (3) are arranged on the upper and lower sides of the fixed axle (2).

6. A convenient thread pulling assist device according to claim 4, characterized in that: A pointed cone (7) is fixed to the backing plate (32) on the side away from the external support (3).

7. A convenient thread pulling assist device according to claim 4, characterized in that: The support rod (31) is a telescopic rod.

8. A convenient thread pulling assist device according to claim 2, characterized in that: A rubber pad (8) is fixed to the end of the support leg (51) away from the circular rod (53).

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