Electrical threading apparatus for building electrical
By designing an adjustable diameter electrical threader, the problem of traditional threaders being unable to adapt to ropes of different materials and lengths is solved, thus improving the safety and stability of the electrical system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional cable pullers have a fixed sleeve diameter, which cannot accommodate traction ropes of different materials and lengths, leading to rope breakage or loosening and knotting, affecting the stability and safety of the electrical system.
An electrical cable threader comprising an internal support assembly and a rotating telescopic assembly was designed. The sleeve diameter is changed by a motor-driven adjustment assembly to accommodate traction ropes of different materials and lengths. The elastic sleeve and wear-resistant materials are used to reduce friction and wear.
It enables flexible adjustment of the sleeve diameter to accommodate traction ropes of different materials and lengths, reducing rope breakage and loosening issues, and improving the operational safety and stability of the electrical system.
Smart Images

Figure CN224123789U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, specifically to an electrical wiring device for building electrical systems. Background Technology
[0002] Building construction is a series of complex and meticulous technical works and the final completed engineering entity for the construction, renovation or expansion of buildings and ancillary structures and facilities. In the buildings constructed by building construction, the electrical system is also a part. The electrical system is responsible for providing power supply to the building and meeting the needs of lighting, air conditioning, communication, security and other aspects. As the main carrier of electrical energy transmission in the electrical system, the quality of installation and construction of cables directly affects the stability and safety of the electrical system. During the installation and construction of cables, cable pullers are usually used.
[0003] In existing technologies, traditional cable pullers are usually equipped with sleeves of a fixed diameter, which can only accommodate specific traction ropes. Depending on different work needs, different materials of traction ropes may be used. For example, synthetic fiber ropes are used for temporary wiring traction, while copper stranded wires are used for grounding wire traction. If the sleeve diameter is too small, the traction rope may break. If the sleeve diameter is too large, the traction rope may become loose and easily knotted inside the sleeve, increasing friction and reducing the service life of the component.
[0004] In view of the above, this application is hereby submitted. Utility Model Content
[0005] The purpose of this utility model is to provide an electrical wiring device for building electrical systems to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model provides an electrical wiring device for building electrical systems, including a housing. An adjustment assembly is installed inside the housing, comprising an internal support assembly and a rotational telescopic assembly. The internal support assembly includes a first motor installed inside the housing. The output end of the first motor is connected to a mounting column. A turntable is fixedly connected to the end of the mounting column near the first motor. A sliding sleeve is fitted around the outside of the mounting column. Twelve connecting rods are rotatably connected to the outer wall of the sliding sleeve. A support plate is rotatably connected to the end of every two connecting rods away from the sliding sleeve. A slider is fixedly connected to the side of the support plate near the turntable. A threaded rod is connected to the inner wall of the mounting column. An installation block is fixedly connected to the end of the threaded rod away from the mounting column.
[0007] Furthermore, the rotating telescopic assembly includes a mounting housing installed at one end of the sliding sleeve column. A second motor is connected to the inner wall of the mounting housing. A gear is connected to the output end of the second motor. A rack is meshed with the bottom end of the gear. A rotating column is rotatably connected to one side of the outer wall of the rack. A fixing block is slidably connected to one side of the outer wall of the rotating column. The outer wall of the fixing block is fixedly connected to the inner wall of the mounting housing.
[0008] Furthermore, the outer wall of the inner support component is fitted with an elastic sleeve, and the elastic sleeve is made of a wear-resistant material.
[0009] Furthermore, four casters are installed at the bottom of the box, and the four casters are rectangular at the bottom of the box.
[0010] Furthermore, the outer wall of the turntable is provided with six guide grooves, and the six sliders are slidably connected to the six guide grooves respectively.
[0011] Furthermore, one end of the rotating column is fixedly connected to one end of the mounting block, the outer wall of the mounting shell is rotatably connected to the inner wall of the housing, the outer wall of the first motor is fixedly connected to the inner wall of the housing, and the outer wall of the second motor is fixedly connected to the inner wall of the mounting shell.
[0012] Furthermore, a rotating buckle is installed on one side of the outer wall of the rack, and a sliding groove is opened on the side of the rotating column near the rack. The rack is rotatably connected to the sliding groove opened on one side of the outer wall of the rotating column through the rotating buckle.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. By using the adjustment component to change the diameter of the sleeve, it can be adapted to different materials of traction rope, reduce the bending stress caused by the sleeve being too large, avoid traction rope breakage, or avoid the problem of loosening and knotting caused by the sleeve being too small.
[0015] 2. By changing the sleeve diameter, different lengths of traction ropes can be adapted to different pulling needs. For example, when the traction rope is short, the sleeve diameter can be reduced to decrease the frictional resistance between the threader and the traction rope, enabling rapid winding and unwinding. When the traction rope is long, the sleeve diameter can be increased to enhance the load-bearing capacity of the sleeve and ensure work safety. Attached Figure Description
[0016] Figure 1 A schematic diagram of the overall structure of an electrical wiring harness for building electrical systems;
[0017] Figure 2 This is a schematic diagram of the internal structure of an electrical wiring harness for building electrical systems.
[0018] Figure 3 This is a schematic diagram of the overall structure of the adjustment component in an electrical wiring harness for building electrical applications.
[0019] Figure 4 This is a schematic diagram of the bottom structure of an adjustment component in an electrical wiring harness for building electrical applications;
[0020] Figure 5 This is a cross-sectional schematic diagram of an electrical wiring harness adjustment assembly for building electrical applications;
[0021] Figure 6 This is a schematic diagram of the internal structure of a rotating telescopic component in an electrical wiring harness for building electrical applications.
[0022] Figure 7 This is a schematic diagram of the connection between the rack and the rotating column in an electrical wiring harness for building electrical applications.
[0023] In the picture:
[0024] 1. Housing; 2. First motor; 3. Mounting column; 4. Sliding sleeve column; 5. Connecting rod; 6. Support plate; 7. Slider; 8. Turntable; 9. Threaded rod; 10. Mounting block; 11. Mounting shell; 12. Second motor; 13. Gear; 14. Rack; 15. Rotating column; 16. Fixing block; 17. Elastic sleeve; 18. Caster wheel. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figures 1-7This utility model provides a technical solution: an electrical wiring device for building electrical systems, including a housing 1. An adjustment assembly is installed inside the housing 1, comprising an internal support assembly and a rotational telescopic assembly. The internal support assembly includes a first motor 2 installed inside the housing 1. The outer wall of the first motor 2 is fixedly connected to the inner wall of the housing 1. The output end of the first motor 2 is connected to a mounting column 3. When the first motor 2 starts, it synchronously drives the mounting column 3 to rotate. A turntable 8 is fixedly connected to the end of the mounting column 3 closest to the first motor 2. The turntable 8 rotates synchronously with the rotation of the mounting column 3, and the mounting column 3 also serves as a support structure for the turntable 8. A sliding sleeve column 4 is fitted around the outside of the mounting column 3. When the first motor 2 starts, the rotation of the mounting column 3 drives the sliding sleeve column 4 to rotate together. Twelve connecting rods 5 are rotatably connected to the outer wall of the sliding sleeve column 4. A support plate 6 is rotatably connected to the end of each pair of connecting rods 5 furthest from the sliding sleeve column 4. The displacement of the sliding sleeve 4 drives the twelve connecting rods 5 to move the support plate 6. A slider 7 is fixedly connected to the side of the support plate 6 near the turntable 8. The outer wall of the turntable 8 has six guide grooves. The six sliders 7 are slidably connected to the six guide grooves. The turntable 8 provides a sliding track for the sliders 7, guiding the support plate 6 to expand or contract radially. The cooperation between the guide grooves and the sliders 7 enhances the connection stability between the turntable 8 and the support plate 6. A threaded rod 9 is connected to the inner wall of the mounting column 3. A mounting block 10 is fixedly connected to the end of the threaded rod 9 away from the mounting column 3. When the mounting column 3 rotates, it synchronously drives the sliding sleeve 4 and the threaded rod 9 to rotate. Similarly, it drives the mounting block 10 to rotate. When an external force is applied to the mounting block 10, it drives the mounting block 10 to rotate and extend, which is converted into the axial rotation and extension movement of the threaded rod 9, thereby driving the sliding sleeve 4 and the support plate 6 to move accordingly.
[0027] See Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7The rotating telescopic assembly includes a mounting housing 11 installed at one end of the sliding sleeve column 4. The outer wall of the mounting housing 11 is rotatably connected to the inner wall of the housing 1. The connection between the mounting housing 11 and the inner wall of the housing 1 ensures the stability of the assembly's operation. A second motor 12 is connected to the inner wall of the mounting housing 11. A gear 13 is connected to the output end of the second motor 12. When the second motor 12 starts, it provides a power source to drive the gear 13 to rotate. A rack 14 is meshed at the bottom end of the gear 13. The gear 13 converts the rotational motion of the second motor 12 into the linear motion of the rack 14. A rotating column 15 is rotatably connected to one side of the outer wall of the rack 14. A fixed block 16 is slidably connected to one side of the outer wall of the rotating column 15. Under the push of the rack 14, the rotating column 15 forms a sliding connection with the fixed block 16 through the slot opened on the surface of the rotating column 15. When the rotating column 15 moves horizontally, the slot will form a synchronous motion of rotation and extension. The outer wall of the fixed block 16 is fixedly connected to the inner wall of the mounting housing 11, ensuring the stability of the assembly connection.
[0028] See Figure 6 One end of the rotating column 15 is fixedly connected to one end of the mounting block 10. Through this fixed connection, when the rotating column 15 moves, the mounting block 10 will move synchronously, driving the threaded rod 9 to move. The outer wall of the mounting shell 11 is rotatably connected to the inner wall of the box 1.
[0029] See Figure 2 The outer wall of the inner support component is fitted with an elastic sleeve 17. The elastic sleeve 17 is made of wear-resistant material, which is rubber. Through the properties of rubber, it can absorb some vibration and energy, reducing the wear between the component and the traction rope.
[0030] See Figure 1 , Figure 2 The bottom of the box 1 is equipped with four casters 18. The four casters 18 are rectangular at the bottom of the box 1. The casters 18 provide the box 1 with mobility and allow the box 1 to be adjusted in different positions. The rectangular distribution ensures the stability of the box 1 during movement.
[0031] Working principle: After the second motor 12 is started, it drives the gear 13 to rotate, causing the rack 14 to push out the rotating column 15. Since the fixed block 16 is fixedly connected to the outer wall of the mounting shell 11, when the rotating column 15 extends, it slides through the slot on the surface of the rotating column 15 and the fixed block 16, so that the rotating column 15 rotates and moves when it is pushed out, which drives the mounting block 10 to rotate synchronously. The mounting block 10 drives the threaded rod 9 to rotate and extend synchronously, thereby driving the sliding sleeve column 4 to move on the surface of the mounting column 3. Multiple connecting rods 5 are used to adjust the support plate 6, thereby changing the traction rope sleeve on components of different diameters. The start of the first motor 2 will synchronously drive the mounting column 3 and the turntable 8 to rotate, which will also drive the mounting shell 11 to rotate. Since the mounting shell 11 is rotated and connected to the housing 1, it ensures that the components will not interfere with each other.
[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An electrical wiring harness for building electrical systems, comprising a housing (1), characterized in that: An adjustment assembly is installed inside the housing (1), which includes an internal support assembly and a rotation and telescopic assembly; The internal support assembly includes a first motor (2) installed inside the housing (1). The output end of the first motor (2) is connected to a mounting column (3). A turntable (8) is fixedly connected to the end of the mounting column (3) near the first motor (2). A sliding sleeve column (4) is sleeved on the outside of the mounting column (3). Twelve connecting rods (5) are rotatably connected to the outer wall of the sliding sleeve column (4). A support plate (6) is rotatably connected to the end of each pair of connecting rods (5) away from the sliding sleeve column (4). A slider (7) is fixedly connected to the side of the support plate (6) near the turntable (8). A threaded rod (9) is connected to the inner wall of the mounting column (3). A mounting block (10) is fixedly connected to the end of the threaded rod (9) away from the mounting column (3).
2. The electrical wiring harness for building electrical systems as described in claim 1, characterized in that: The rotating telescopic assembly includes a mounting housing (11) installed at one end of the sliding sleeve column (4). A second motor (12) is connected to the inner wall of the mounting housing (11). A gear (13) is connected to the output end of the second motor (12). A rack (14) is meshed with the bottom end of the gear (13). A rotating column (15) is rotatably connected to one side of the outer wall of the rack (14). A fixing block (16) is slidably connected to one side of the outer wall of the rotating column (15). The outer wall of the fixing block (16) is fixedly connected to the inner wall of the mounting housing (11).
3. The electrical wiring harness for building electrical systems as described in claim 2, characterized in that: The outer wall of the inner support assembly is fitted with an elastic sleeve (17), and the elastic sleeve (17) is made of a wear-resistant material.
4. The electrical wiring harness for building electrical systems as described in claim 3, characterized in that: The bottom of the box (1) is equipped with four casters (18), which are rectangular at the bottom of the box (1).
5. The electrical wiring harness for building electrical systems as described in claim 4, characterized in that: One end of the rotating column (15) is fixedly connected to one end of the mounting block (10), and the outer wall of the mounting shell (11) is rotatably connected to the inner wall of the box (1).
6. The electrical wiring harness for building electrical systems as described in claim 5, characterized in that: The outer wall of the turntable (8) is provided with six guide grooves, and the six sliders (7) are slidably connected to the six guide grooves respectively.
7. The electrical wiring harness for building electrical systems as described in claim 6, characterized in that: The outer wall of the first motor (2) is fixedly connected to the inner wall of the housing (1), and the outer wall of the second motor (12) is fixedly connected to the inner wall of the mounting shell (11).
8. The electrical wiring harness for building electrical systems as described in claim 7, characterized in that: A rotating buckle is installed on one side of the outer wall of the rack (14), and a sliding groove is provided on the side of the rotating column (15) near the rack (14). The rack (14) is rotatably connected to the sliding groove on one side of the outer wall of the rotating column (15) through the rotating buckle.