Threading device for building electrical construction and use method thereof

Abstract

The invention discloses a threading device for building electrical construction and a use method of the threading device, and mainly relates to the field of threading devices. Comprising a mainframe box, a rotating shaft is rotationally connected into the mainframe box, a winding frame is arranged on the rotating shaft, a threading rope is wound on the winding frame, a winding motor for driving the rotating shaft to rotate is arranged in the mainframe box, a connecting hose is arranged on one side of the mainframe box in a communicating mode, and a junction box fixing frame is arranged at the end of the connecting hose. The threading rope penetrates through the connecting hose and then extends into the junction box fixing frame, threading wheels are symmetrically and rotationally connected into the junction box fixing frame, and a connecting joint is arranged at the end of the threading rope. The threading device has the beneficial effects that the technical problems that when an existing threading device is used, the efficiency is low, and line pipe blockage is difficult to overcome can be solved, the blockage condition in the line pipe can be automatically dredged, the smoothness of threading operation is greatly improved, the workload of threading construction is reduced, and the threading efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of cable installation, specifically to a wiring device for building electrical construction and its usage method. Background Technology

[0002] During building construction, conduits are typically pre-installed inside the building for convenience and safety of future wiring. Cables such as network cables and electrical wires pass through these conduits and connect between two junction boxes. Therefore, during electrical installation, cables need to be inserted into one junction box and then extended out the other – this process is called cable threading. Since the conduits are pre-installed inside the building, there is a possibility of bends or construction debris clogging them. Current methods generally involve manual threading using a threading rope. This requires gradually inserting the rope into the conduit from one junction box, extending it out to connect with the cable, and then pulling the rope back out. This method is labor-intensive and requires multiple people. When construction debris clogs the conduit, the rope cannot move further, requiring workers to spend considerable time and effort cleaning it. Therefore, the convenience and efficiency of existing threading devices need further optimization. Summary of the Invention

[0003] The purpose of this invention is to provide a wiring device for building electrical construction and its usage method. It can solve the technical problems of low efficiency and difficulty in overcoming conduit blockage when using existing wiring devices. The wiring device is fixed at the junction box to perform automatic wiring operation and can automatically clear blockages in the conduit, which greatly improves the smoothness of the wiring operation, reduces the workload of wiring construction, and improves the efficiency of wiring.

[0004] To achieve the above objectives, the present invention employs the following technical solution: A wiring device for building electrical construction includes a main unit housing. A rotating shaft is rotatably connected inside the main unit housing. A winding frame is mounted on the rotating shaft, and a wiring rope is wound around the winding frame. A winding motor for driving the rotating shaft is located inside the main unit housing. A connecting flexible hose is connected to one side of the main unit housing. A junction box mounting bracket is located at the end of the connecting flexible hose. The wiring rope passes through the connecting flexible hose and extends into the junction box mounting bracket. Wire-threading wheels are symmetrically rotatably connected inside the junction box mounting bracket. The two wire-threading wheels on both sides respectively roll in contact with the two sides of the wiring rope. A wire-threading motor for driving the wire-threading wheels is located inside the junction box mounting bracket. A fixed base and a movable top are located on the outer side of the junction box mounting bracket. The frame includes a movable top frame slidably connected to a junction box fixing frame, a compression spring between the movable top frame and the junction box fixing frame, a connecting joint at the end of the threaded rope, multiple connecting blocks on the connecting joint, an end cap for closing the multiple connecting blocks movably connected to the rear side of the connecting joint, a drill bit rotatably connected to the front side of the connecting joint, a cleaning motor for driving the drill bit to rotate inside the connecting joint, multiple hidden grooves on the side wall of the drill bit, a cleaning rod slidably connected vertically in the hidden groove, a return spring between the cleaning rod and the drill bit, a power groove inside the drill bit, and a power component for simultaneously driving the multiple cleaning rods to slide inside the power groove.

[0005] Furthermore, a cleaning box is provided between the main unit and the connecting hose. The threading rope passes through the cleaning box and extends into the connecting hose. The cleaning box is equipped with a scraper for use with the threading rope.

[0006] Furthermore, the scraper is symmetrically rotatably connected inside the cleaning box, and a torsion spring is provided between the scraper and the side wall of the cleaning box. A cleaning ring is provided at the end of the scraper. When the cable moves toward the inside of the main unit, the two cleaning rings contact each other and are sleeved on the outside of the cable.

[0007] Furthermore, the top of the junction box fixing frame is symmetrically provided with a sleeve, the side wall of the sleeve is provided with a sliding hole, a pressure rod is slidably connected in the sliding hole, the movable top frame is connected to the pressure rod, and the compression spring is provided between the pressure rod and the bottom of the sliding hole.

[0008] Furthermore, the top of the pressure rod is provided with a guide post, which is slidably connected inside the sleeve.

[0009] Furthermore, the power assembly includes a slide rod, a magnetic block, and an electromagnet. The slide rod is slidably connected in the power groove, the electromagnet is fixed in the power groove, the end of the slide rod away from the electromagnet is connected to the cleaning rod, and the magnetic block is fixed on the end of the slide rod near the electromagnet. When the electromagnet is energized, the magnetic poles at its end and the magnetic poles at the end of the magnetic block are of the same polarity.

[0010] Furthermore, the electromagnet is ring-shaped, and the return spring is sleeved on the outside of the slide rod, with the return spring located between the end of the magnetic block and the power groove.

[0011] Furthermore, the connector is provided with multiple connecting grooves, the connecting block is disposed on the rear side of the connecting groove, the longitudinal section of the end cap is tapered, and the end cap is threadedly connected to the rear side of the connector.

[0012] A method for using a wiring device for building electrical construction includes the following steps: S1. Move the main unit to the construction position, hold the junction box fixing bracket at the end of the connecting hose, and move the top bracket downwards towards the fixed base bracket. After the gap between the top bracket and the fixed base bracket is reduced, insert both into the junction box. Then release the top bracket. Under the reverse elastic force of the compression spring, the top bracket and the fixed base bracket will contact the upper and lower sides of the junction box respectively, thereby fixing the junction box fixing bracket at the junction box. S2. Simultaneously start the winding motor and the threading motor, so that the threading rope is unwound from the winding frame and automatically extends into the wire tube inside the junction box under the action of the threading wheels on both sides. S3. The connecting joint at the end of the threading rope moves inside the conduit. When there is construction debris blocking the conduit, the power component drives multiple cleaning rods to slide, so that multiple cleaning rods extend outward from the side of the drill bit. Then the cleaning motor is started, driving the drill bit in front of the connecting joint to rotate. With the cooperation of multiple cleaning rods, the blockage of construction debris is broken up, allowing the connecting joint to continue to move forward until it extends out from the junction box on the other side of the wall. At this time, the winding motor and the threading motor are turned off. S4. Fix the multiple cables to be installed onto the multiple connecting blocks of the connector, seal the connection with the end cap, and then start the winding motor and the threading motor to rotate in opposite directions, so that the connector automatically carries the multiple cables in the opposite direction through the conduit for threading until they extend out of the junction box. At this point, remove the multiple cables from the connector to complete the automatic threading operation.

[0013] Furthermore, it also includes a wireless remote control, which is simultaneously connected to the winding motor, the threading motor, and the cleaning motor.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The structure of this invention has a connecting hose connected to the main unit chassis. One end of the connecting hose is equipped with a junction box fixing frame. The threading rope wound on the winding frame inside the main unit chassis passes through the connecting hose and extends into the junction box fixing frame. The junction box fixing frame is equipped with a fixed base frame and a movable top frame. The junction box fixing frame is fixed at the junction box by the compression spring between the movable top frame and the junction box fixing frame. Then, the threading rope is automatically extended into the conduit by the cooperation of the winding motor and the threading motor to perform the threading operation. There is no need for manual threading of the threading rope into the conduit. The operator only needs to fix the junction box fixing frame and wait at the junction box at the other end. It can be operated by a single person, which greatly reduces the workload of the threading operation and improves the convenience and efficiency of the threading operation. 2. The end of the threading rope is equipped with a connector, which has multiple connecting blocks for connecting cables. An end cap is movably connected to the rear of the connector, and a drill bit is rotatably connected to the front of the connector. This structure allows the end cap to seal the connection point after the cable is connected to the connecting block, effectively preventing the cable from breaking during the threading process and improving the smoothness of the threading. In addition, if there is construction debris blocking the inside of the conduit during the threading process, the drill bit can be driven by the cleaning motor to rotate and drill through the construction debris, making it easier for the threading rope to pass through the conduit. This greatly improves the smoothness of the threading and overcomes the technical problem of the conduit being blocked and affecting the smooth threading. 3. The drill bit has multiple hidden grooves on its side wall, with cleaning rods slidably connected in these grooves. During normal threading, the cleaning rods are hidden on the side of the drill bit under the action of the return spring, ensuring the smooth movement of the drill bit along the conduit. When the conduit is blocked, the power unit drives multiple cleaning rods to slide outwards and extend from the surface of the drill bit. When the cleaning motor drives the drill bit to rotate, the multiple extended cleaning rods rotate synchronously with the drill bit, thereby dispersing and breaking up the blockage of construction debris. This makes clearing blockages inside the conduit smoother and more efficient, further improving the efficiency and smoothness of threading. Attached Figure Description

[0015] Appendix Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Appendix Figure 2 This is a rear view of the present invention.

[0017] Appendix Figure 3 This is an appendix to the present invention. Figure 2 A cross-sectional view along the AA direction.

[0018] Appendix Figure 4 This is an appendix to the present invention. Figure 3 Cross-sectional view along the BB direction.

[0019] Appendix Figure 5 This is an appendix to the present invention. Figure 3A cross-sectional view along the CC direction.

[0020] Appendix Figure 6 This is an appendix to the present invention. Figure 3 A cross-sectional view along the DD direction.

[0021] Appendix Figure 7 This is an appendix to the present invention. Figure 6 A magnified view of part E in the middle.

[0022] Appendix Figure 8 This is a three-dimensional structural diagram of the connector of the present invention.

[0023] Appendix Figure 9 This is a right view of the connector of the present invention.

[0024] Appendix Figure 10 This is an appendix to the present invention. Figure 9 A cross-sectional view along the FF direction.

[0025] Appendix Figure 11 This is an appendix to the present invention. Figure 10 A cross-sectional view along the GG direction.

[0026] The labels shown in the attached diagram: 1. Main unit housing; 2. Shaft; 3. Winding frame; 4. Threading rope; 5. Winding motor; 6. Connecting hose; 7. Junction box mounting bracket; 8. Threading wheel; 9. Threading motor; 10. Fixed base frame; 11. Moving top frame; 12. Compression spring; 13. Connecting connector; 14. Connecting block; 15. End cap; 16. Drill bit; 17. Cleaning motor; 18. Hidden groove; 19. Cleaning rod; 20. Return spring; 21. Power groove; 22. Cleaning box; 23. Scraper; 24. Torsion spring; 25. Cleaning ring; 26. Tube sleeve; 27. Sliding hole; 28. Pressure rod; 29. ​​Guide post; 30. Sliding rod; 31. Magnetic block; 32. Electromagnet; 33. Connecting groove. Detailed Implementation

[0027] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined in this application.

[0028] Reference Figure 1 and Figure 2This invention describes a wiring device for building electrical construction and its usage method. The main structure of the wiring device includes a main unit box 1. Multiple rollers are installed at the bottom of the main unit box 1 for easy movement. A rotating shaft 2 is rotatably connected inside the main unit box 1 via bearings. A winding frame 3 is fixed to the rotating shaft 2 by welding or bolts. Multiple stop bars are provided on the side of the winding frame 3. A wiring rope 4 is wound around the winding frame 3. The stop bars restrict the wiring rope 4 to the winding frame 3, making the structure of the winding rope 4 more stable. The wiring rope 4 is generally made of steel wire or fiberglass. A winding motor 5 that drives the rotating shaft 2 is fixed inside the main unit box 1 by welding or bolts. Specifically, the output shaft of the winding motor 5 and the rotating shaft 2 are both welded or bolted together. A gear is fixed in place, and the two gears mesh. A winding motor 5 drives the rotating shaft 2 to rotate, thereby rotating the winding frame 3 on the shaft 2. A connecting hose 6 is bolted to one side of the main unit housing 1. Specifically, a through hole is provided on the side of the main unit housing 1, communicating with the connecting hose 6. The connecting hose 6 is made of plastic with steel wire, allowing it to bend. A junction box mounting bracket 7 is bolted to the end of the connecting hose 6, used to fix it to a junction box on the wall. The threading rope 4 passes through the connecting hose 6 and extends into the junction box mounting bracket 7. symmetrical threading wheels 8 are rotatably connected to the junction box mounting bracket 7 via bearings. The threading wheels 8 on both sides roll in contact with the two sides of the threading rope 4. When the threading wheels 8 on both sides rotate in opposite directions, the threading rope 4 between them can be driven forward or backward, realizing automatic threading of the threading rope 4. This eliminates the need for manual threading of the rope 4 into the conduit, greatly improving threading efficiency and convenience, and reducing the workload. A threading motor 9, which drives the threading wheels 8, is fixed inside the junction box mounting frame 7 by welding or bolts. Specifically, one of the threading wheels 8 is fixed to the output shaft of the threading motor 9. Both threading wheels 8 are equipped with meshing gears, allowing the threading motor 9 to simultaneously drive both wheels 8 to rotate in opposite directions. A fixed base frame 10 and a movable top frame 11 are provided on the outer side of the junction box mounting frame 7. The fixed base frame 10 is fixed to the junction box mounting frame 7 by welding or bolts. At the bottom of the fixed frame 7, the movable top frame 11 is vertically slidably connected to the top of the junction box fixing frame 7. Both have serrated sides to increase the pressure on the contact surface with the junction box. A compression spring 12 is provided between the movable top frame 11 and the junction box fixing frame 7. In use, pressing down on the movable top frame 11 compresses the compression spring 12, reducing the distance between the movable top frame 11 and the fixed base frame 10, allowing them to be placed inside the junction box. Afterwards, releasing the movable top frame 11 allows it to slide upward under the restoring force of the compression spring 12, contacting the top of the junction box. This brings the fixed base frame 10 and the movable top frame 11 into contact with the bottom and top of the junction box, respectively, thus fixing the junction box fixing frame 7 at the junction box.No manual intervention is required. The winding motor 5 and threading motor 9 can then be activated, causing the threading rope 4 to unwind from the winding frame 3, pass through the connecting hose 6 and the junction box fixing bracket 7, and extend into the conduit, achieving automatic threading. This process requires no manual intervention or cable straightening; simply wait at the junction box on the other end, further improving the convenience of the threading operation. Reference Figure 8 and Figure 9The end of the threading rope 4 is integrally formed or welded to a connecting joint 13. A spring connects the connecting joint 13 to the end of the threading rope 4, facilitating the turning of the connecting joint 13 at the bend of the conduit. Multiple connecting blocks 14 are integrally formed or welded to the connecting joint 13. Each connecting block 14 has a connecting hole, and the cable connector is wound around the connecting hole for fixation. An end cap 15 is movably connected to the rear side of the connecting joint 13 to close the multiple connecting blocks 14. This structure allows multiple cables to be tied to the multiple connecting blocks 14 when the connecting joint 13 passes through the conduit and extends from the junction box at the other end, and the end cap 15 seals the connection. Driven by the winding motor 5 and the threading motor 9, the threading rope 4... When the cable moves in the reverse direction inside the conduit, it is not easy for the cable to separate from the connector 13, further improving the smoothness of the cable threading. The front side of the connector 13 is rotatably connected to the drill bit 16 via a bearing. Specifically, a connecting sleeve is provided at the end of the drill bit 16. A fixing ring is provided on the cable 4 of the connector 13. The connecting sleeve is rotatably fitted outside the fixing ring, realizing the rotatable connection between the drill bit 16 and the connector 13. This makes the rotatable connection structure difficult to separate axially. Inside the connector 13, a cleaning motor 17 that drives the drill bit 16 to rotate is fixed by welding or bolts. The cleaning motor 17 is a micro motor of tens of millimeters or millimeters. Specifically, the output shaft of the cleaning motor 17 and the outside of the connecting sleeve are equipped with meshing gears. The structure enables the drill bit 16 to rotate. When the threading rope 4 encounters a blockage in the conduit while entering alone, the cleaning motor 17 drives the drill bit 16 to rotate, thereby clearing away the construction debris and other impurities that block the conduit. This allows the connector 13 to continue moving smoothly along the conduit, improving the smoothness of threading. The drill bit 16 has multiple hidden grooves 18 on its side wall, recessed inwards. A cleaning rod 19 is vertically slidably connected within each hidden groove 18. The cleaning rod 19 can be hidden inside or extended outwards from the hidden groove 18. When there is no blockage in the conduit, the cleaning rod 19 is hidden within the hidden groove 18 on the side of the drill bit 16, resulting in a smoother surface for the drill bit 16. This allows the drill bit 16 to move smoothly within the conduit, carrying the connecting joint 13. When encountering a blockage, the cleaning rods 19 slide outwards. As the drill bit 16 rotates, the multiple cleaning rods 19 extending from the side disperse the blockage, thus clearing the blockage more quickly and improving efficiency, making the threading process smoother. A return spring 20 is provided between the cleaning rods 19 and the drill bit 16. Under the action of the return spring 20, the cleaning rods 19 remain within the hidden groove 18. The drill bit 16 has a power groove 21 inside, which contains a power component that simultaneously drives the multiple cleaning rods 19 to slide. This structure utilizes the power component to compress the return spring 20 when the multiple cleaning rods 19 slide outwards.After cleaning, the cleaning rod 19 automatically slides back into the hidden groove 18 under the action of the return spring 20, making the driving and resetting of the cleaning rod 19 more convenient and smooth.

[0029] Preferred, refer to Figure 5 A cleaning box 22 is provided between the main unit housing 1 and the connecting hose 6. The cleaning box 22 is fixed to the side of the main unit housing 1 by welding or bolting. The threading rope 4 passes through the cleaning box 22 and extends into the connecting hose 6. The cleaning box 22 is equipped with a scraper 23 for use with the threading rope 4. With this structure, when the threading rope 4 with the cable is wound backward on the winding frame 3, the scraper 23 inside the cleaning box 22 is used to clean the dust and impurities accumulated on the threading rope 4, keeping the surface of the threading rope 4 clean and tidy, and avoiding the accumulation of impurities that will cause the diameter of the threading rope 4 to increase, thus affecting the smoothness of subsequent threading.

[0030] Preferred, refer to Figure 6 and Figure 7 The scraper 23 is symmetrically rotatably connected to the cleaning box 22 via pins. A torsion spring 24 is provided between the scraper 23 and the side wall of the cleaning box 22. Under the action of the torsion spring 24, the scraper 23 maintains a relatively inclined state, so that when the threaded rope 4 is unwound outward, it can drive the scraper 23 to rotate and compress the torsion spring 24, so that the scraper 23 will not interfere with the unwinding of the threaded rope 4. The end of the scraper 23 is fixed with a cleaning ring 25 by welding or integral molding. The cleaning ring 25 is semi-circular in shape. When the threaded rope 4 moves towards the inside of the main unit housing 1, the two cleaning rings 25 contact and are sleeved on the outside of the threaded rope 4. This structure allows the threaded rope 4 to return along the threaded tube after passing through the conduit and connecting to the cable, under the action of the torsion spring 24, the two inclined rings 25 are in contact. The inclined scraper 23 rotates in opposite directions, causing the cleaning rings 25 on the two scrapers 23 to contact and form a circular structure that fits around the outside of the threaded rope 4. Preferably, the cleaning ring 25 has a brush or rubber ring inside for cleaning impurities on the surface of the threaded rope 4. This allows the cleaning ring 25 to effectively clean the surface of the threaded rope 4 returning from the conduit, ensuring the cleanliness of the surface of the threaded rope 4. Preferably, the cleaning box 22 is a cone shape that is wider at the top and narrower at the bottom. The bottom of the cone is threaded with a cleaning cover, allowing fallen impurities to accumulate at the bottom cleaning cover. After a certain period of time, the cleaning cover is opened to clean the impurities inside, making the cleaning operation more convenient. Moreover, the cleaning structure does not interfere with the movement of the threaded rope 4 during unwinding, ensuring the flexibility of the cleaning process.

[0031] Preferred, refer to Figure 3 and Figure 4The top of the junction box fixing frame 7 is symmetrically fixed with sleeves 26 by welding or bolts. The side wall of the sleeve 26 is provided with a through sliding hole 27. A pressure rod 28 is slidably connected in the vertical direction in the sliding hole 27. The movable top frame 11 is fixedly connected to the pressure rod 28 by welding or bolts. The compression spring 12 is set between the bottom of the pressure rod 28 and the sliding hole 27. This structure uses the sliding hole 27 on the sleeve 26 to guide the vertical sliding of the pressure rod 28, so that the movable top frame 11 connected to the pressure rod 28 is more stable when sliding vertically, and can accurately compress the compression spring 12. Thus, the movable top frame 11 can be effectively fixed in the junction box under the action of the reverse elastic force, which improves the firmness of the junction box fixing frame 7 and the junction box connection structure.

[0032] Preferably, the top of the pressure rod 28 is fixed with a guide post 29 by welding or bolting. The guide post 29 is slidably connected inside the sleeve 26. This structure allows the guide post 29 to slide vertically inside the sleeve 26 when the pressure rod 28 slides vertically in the sliding hole 27, thereby making the pressure rod 28 less prone to tilting and further improving the stability of the movable top frame 11 connected to the pressure rod 28.

[0033] Preferred, refer to Figure 11 The power assembly includes a slide rod 30, a magnetic block 31, and an electromagnet 32. The slide rod 30 is slidably connected within a power groove 21, which is connected to multiple hidden grooves 18. The electromagnet 32 ​​is fixed to the power groove 21 by welding or bolts. Specifically, the wire connected to the electromagnet 32 ​​passes through the inside of the threading rope 4 and is connected to the power supply inside the main unit 1 to provide power to the electromagnet 32. The end of the slide rod 30 away from the electromagnet 32 ​​is fixedly connected to the cleaning rod 19 by welding or integral molding. The magnetic block 31 is fixed to the end of the slide rod 30 near the electromagnet 32 ​​by bolts. In this structure, when the electromagnet 32 ​​is energized, the magnetic poles at its end and the magnetic poles at the end of the magnetic block 31 are of the same polarity. Because the ends of the electromagnet 32 ​​and the magnetic block 31 are of the same polarity, they can generate a repulsive force on the slide rod 30, causing the slide rod 30 to slide outward toward the power groove 21. This causes the cleaning rod 19 to extend outward from the hidden groove 18. After cleaning is completed, the electromagnet 32 ​​is de-energized, and the slide rod 30 automatically slides downward to reset under the action of the return spring 20, causing the cleaning rod 19 to move downward until it is hidden in the hidden groove 18. This makes the sliding control of the cleaning rod 19 more convenient and efficient.

[0034] Preferably, the electromagnet 32 ​​is ring-shaped, so that the outer magnetic pole of the ring can be simultaneously positioned opposite to the magnetic poles of multiple magnetic blocks 31, making the magnetic repulsion force on the multiple magnetic blocks 31 more uniform. The return spring 20 is sleeved on the outside of the slide rod 30. The return spring 20 is located between the ends of the magnetic block 31 and the power groove 21. The size of the magnetic block 31 is adapted to the width of the power groove 21, and the size of the slide rod 30 is smaller than the width of the power groove 21. This makes the structure of the return spring 20 between the magnetic block 31 and the power groove 21 more stable, and makes the sliding drive of the slide rod 30 smoother.

[0035] Preferred, refer to Figure 10 The connector 13 is provided with multiple connecting grooves 33, which are recessed inward from the surface of the connector 13. The connecting block 14 is fixed to the rear side of the connecting groove 33 by welding or bolts. The end cap 15 has a tapered longitudinal section and is threaded to the rear side of the connector 13. This structure allows the end cap 15 to cover the connecting block 14 in the connecting groove 33 after it is threaded to the rear side of the connector 13, thereby achieving effective sealing of the connection. At the same time, the tapered structure makes the threading rope 4 move more smoothly in the reverse direction in the tube, further improving the smoothness of the threading operation.

[0036] A method for using a wiring device for building electrical construction includes the following steps: S1. Move the main unit 1 to the construction position, hold the junction box fixing bracket 7 at the end of the connecting hose 6, and press down on the moving top bracket 11 to move it toward the fixed base bracket 10. After the distance between the moving top bracket 11 and the fixed base bracket 10 is reduced, insert both into the junction box. Then release the moving top bracket 11. Under the reverse elastic force of the compression spring 12, the moving top bracket 11 and the fixed base bracket 10 will contact the upper and lower sides of the junction box respectively, thereby fixing the junction box fixing bracket 7 at the junction box. After fixing, there is no need for manual handling of the device or manual wiring. Just wait for the threading rope 4 to extend from the other end of the junction box. S2. Simultaneously start the winding motor 5 and the threading motor 9, so that the threading rope 4 is unwound from the winding frame 3 and automatically extends into the wire tube inside the junction box under the action of the threading wheels 8 on both sides. S3. The connecting joint 13 at the end of the threading rope 4 moves inside the conduit. When there is construction debris blocking the conduit, the power component drives multiple cleaning rods 19 to slide, so that multiple cleaning rods 19 extend outward from the side of the drill bit 16. Then the cleaning motor 17 is started, driving the drill bit 16 in front of the connecting joint 13 to rotate. With the cooperation of multiple cleaning rods 19, the blockage construction debris is broken up. Specifically, the accumulated construction debris is broken up and distributed on the side wall of the remaining position of the conduit, thereby clearing the blockage and allowing the connecting joint 13 to continue to move forward. After clearing the blockage, the threading rope 4 does not need to clear the blockage again when it returns, making it smoother when the threading rope 4 drives the cable back. Until the connecting joint 13 extends out from the junction box at the other end of the wall, the winding motor 5 and the threading motor 9 are turned off. S4. Fix the multiple cables to be installed onto the multiple connecting blocks 14 of the connector 13. Specifically, remove the insulation from the cable ends, wrap the internal metal wire around the connecting holes of the connecting block 14, and seal the connection with the end cap 15. Then, start the winding motor 5 and the threading motor 9 to rotate in opposite directions, so that the connector 13 automatically carries the multiple cables through the conduit in the opposite direction for threading until they emerge from the junction box. At this point, remove the multiple cables from the connector 13 to complete the automatic threading operation. During the entire process, the operator only needs to disassemble and assemble the junction box fixing frame 7 and the cables and connector 13. This can be completed by a single person, greatly reducing the workload of threading, greatly improving threading efficiency, and making the threading operation smoother.

[0037] Preferably, it also includes a wireless remote control, which is simultaneously connected to the winding motor 5, the threading motor 9, and the cleaning motor 17. With this structure, when starting or stopping the winding motor 5, the threading motor 9, and the cleaning motor 17, or starting them in reverse rotation, it is only necessary to use the wireless remote control in hand, without having to go to the main unit box 1 to operate, which further simplifies the control steps and improves the efficiency of the threading operation.

[0038] Working principle: The structure of this invention has a connecting hose 6 connected to the main unit 1. One end of the connecting hose 6 is equipped with a junction box fixing frame 7. The threading rope 4 wound on the cable reel 3 inside the main unit 1 passes through the connecting hose 6 and extends into the junction box fixing frame 7. The junction box fixing frame 7 is equipped with a fixed base frame 10 and a movable top frame 11. The junction box fixing frame 7 is fixed at the junction box by the compression spring 12 between the movable top frame 11 and the junction box fixing frame 7. Then, the cable reel motor 5 and the threading motor 9 work together to make the threading rope 4 automatically extend into the cable tube. The wiring operation can be performed internally without the need for manual insertion of the wire rope 4 into the conduit. The operator only needs to fix the junction box fixing bracket 7 and wait at the other end of the junction box. This single-person operation greatly reduces the workload of wire threading and improves the convenience and efficiency of the operation. The end of the wire rope 4 is equipped with a connecting connector 13, which has multiple connecting blocks 14 for connecting cables. An end cap 15 is movably connected to the rear side of the connecting connector 13, and a drill bit 16 is rotatably connected to the front side of the connecting connector 13. This structure allows the cable to be connected to the connecting block 14. After block 14 is connected, end cap 15 seals the connection, effectively preventing the cable from breaking during threading and improving the smoothness of threading. Furthermore, if construction debris clogs the conduit during threading, the cleaning motor 17 drives the drill bit 16 to rotate and drill away the debris, making it easier for the threading rope 4 to pass through the conduit, greatly improving the smoothness of threading and overcoming the technical difficulty of conduit blockage affecting smooth threading. The drill bit 16 has multiple hidden grooves 18 on its side wall, with a cleaning rod 19 slidably connected within each hidden groove 18. This structure... During normal wire threading, the cleaning rod 19 is hidden on the side of the drill bit 16 under the action of the return spring 20, ensuring the smooth movement of the drill bit 16 along the conduit. When the conduit is blocked, the power component drives multiple cleaning rods 19 to slide outward and extend from the surface of the drill bit 16. When the cleaning motor 17 drives the drill bit 16 to rotate, the multiple extended cleaning rods 19 rotate synchronously with the drill bit 16, thereby dispersing the blockage of construction debris. This makes the unblocking of the conduit smoother and more efficient, further improving the efficiency and smoothness of wire threading.

Claims

1. A wiring device for building electrical construction, comprising a main unit (1), wherein a rotating shaft (2) is rotatably connected inside the main unit (1), a winding frame (3) is provided on the rotating shaft (2), a wiring rope (4) is wound on the winding frame (3), and a winding motor (5) for driving the rotating shaft (2) to rotate is provided inside the main unit (1), characterized in that: The side of the main box (1) is provided with a connecting hose (6), the end of the connecting hose (6) is provided with a junction box fixing frame (7), the threading rope (4) passes through the connecting hose (6) and extends into the junction box fixing frame (7), the junction box fixing frame (7) is rotatably connected with a threading wheel (8) symmetrically, the threading wheels (8) on both sides are in rolling contact with the two sides of the threading rope (4) respectively, the junction box fixing frame (7) is provided with a threading motor (9) for driving the threading wheel (8) to rotate, the outer side of the junction box fixing frame (7) is provided with a fixed base frame (10) and a movable top frame (11), the movable top frame (11) is slidably connected with the junction box fixing frame (7), a compression spring (12) is arranged between the movable top frame (11) and the junction box fixing frame (7), the end of the threading rope (4) is provided with a connecting joint (13), a plurality of connecting blocks (14) are arranged on the connecting joint (13), a cover (15) for closing the plurality of connecting blocks (14) is movably connected to the rear side of the connecting joint (13), a drill bit (16) is rotatably connected to the front side of the connecting joint (13), a cleaning motor (17) for driving the drill bit (16) to rotate is arranged in the connecting joint (13), a plurality of hidden grooves (18) are arranged on the side wall of the drill bit (16), a cleaning rod (19) is slidably connected in the hidden grooves (18) in the vertical direction, a reset spring (20) is arranged between the cleaning rod (19) and the drill bit (16), a power groove (21) is arranged in the drill bit (16), and a power assembly for simultaneously driving the plurality of cleaning rods (19) to slide is arranged in the power groove (21).

2. The threading device for electrical construction of buildings as claimed in claim 1, wherein: The main box (1) and the connecting hose (6) are provided with a communication cleaning box (22), the threading rope (4) passes through the cleaning box (22) and extends into the connecting hose (6), and the cleaning box (22) is provided with a scraper (23) matched with the threading rope (4).

3. The threading device for electrical construction of buildings according to claim 2, characterized in that: The scraper (23) is rotatably connected in the cleaning box (22) symmetrically, a torsional spring (24) is arranged between the scraper (23) and the side wall of the cleaning box (22), the end of the scraper (23) is provided with a cleaning ring (25), and when the threading rope (4) moves towards the inside of the main box (1), the two cleaning rings (25) are in contact and are arranged on the outside of the threading rope (4).

4. The threading device for electrical construction of buildings as claimed in claim 1 wherein: The top of the junction box fixing frame (7) is symmetrically provided with a pipe sleeve (26), the side wall of the pipe sleeve (26) is provided with a sliding hole (27), a pressing rod (28) is slidably connected in the sliding hole (27), the movable top frame (11) is connected with the pressing rod (28), and the compression spring (12) is arranged between the pressing rod (28) and the bottom of the sliding hole (27).

5. The threading device for electrical construction of buildings as claimed in claim 4, wherein: The top of the pressing rod (28) is provided with a guide column (29), and the guide column (29) is slidably connected in the pipe sleeve (26).

6. The threading device for electrical construction of buildings as claimed in claim 1 wherein: The power assembly comprises a sliding rod (30), a magnetic block (31) and an electromagnet (32), the sliding rod (30) is slidingly connected in the power groove (21), the electromagnet (32) is fixed in the power groove (21), the end of the sliding rod (30) away from the electromagnet (32) is connected with the cleaning rod (19), the magnetic block (31) is fixed on the end of the sliding rod (30) close to the electromagnet (32), and the magnetic poles of the end of the electromagnet (32) and the end of the magnetic block (31) are the same when the electromagnet (32) is electrified.

7. The threading device for electrical construction of buildings according to claim 6, characterized in that: The electromagnet (32) is annular, the reset spring (20) is sleeved outside the sliding rod (30), and the reset spring (20) is located between the magnetic block (31) and the end of the power groove (21).

8. The threading device for electrical construction of buildings as claimed in claim 1 wherein: A plurality of connecting grooves (33) are arranged on the connecting joint (13), the connecting block (14) is arranged on the rear side of the connecting groove (33), the longitudinal section of the end cover (15) is conical, and the end cover (15) is threadedly connected with the rear side of the connecting joint (13).

9. A method for using a wiring device for building electrical construction, characterized in that, The method comprises the following steps: S1, the host box (1) is moved to the construction position, the terminal box fixing frame (7) at the end of the handheld connecting hose (6) is fixed, the moving top frame (11) is moved towards the fixed bottom frame (10) by being pressed downwards, the interval between the moving top frame (11) and the fixed bottom frame (10) is reduced, and then the two are inserted into the terminal box, then the moving top frame (11) is loosened, the moving top frame (11) and the fixed bottom frame (10) are in contact with the upper and lower sides of the terminal box respectively under the action of the reverse elastic force of the compression spring (12), and the terminal box fixing frame (7) is fixed at the terminal box; S2, the winding motor (5) and the threading motor (9) are started at the same time, the threading rope (4) is unwound from the winding frame (3) and automatically inserted into the wire pipe inside the terminal box under the action of the two side threading wheels (8); S3, the connecting joint (13) at the end of the threading rope (4) moves in the wire pipe, when the wire pipe is blocked by building waste, the power assembly is used to drive a plurality of cleaning rods (19) to slide, the plurality of cleaning rods (19) are extended outwards from the side of the drill bit (16), then the cleaning motor (17) is started to drive the drill bit (16) on the front side of the connecting joint (13) to rotate, the building waste is scattered under the cooperation of the plurality of cleaning rods (19), the connecting joint (13) can continue to advance, and the connecting joint (13) is extended out of the terminal box at the other end of the wall surface, at this time, the winding motor (5) and the threading motor (9) are closed; S4, a plurality of cables to be installed are fixed on the plurality of connecting blocks (14) of the connecting joint (13), the connecting part is closed by the end cover (15), then the winding motor (5) and the threading motor (9) are started to rotate reversely, the connecting joint (13) automatically reversely threads the plurality of cables through the wire pipe, the plurality of cables are detached from the connecting joint (13), and the automatic threading operation is completed.

10. The method of using the threading device for electrical construction of a building of claim 9, wherein: The wireless remote controller is connected with the winding motor (5), the threading motor (9) and the cleaning motor (17) simultaneously.

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