Threading apparatus for electrical installation

Abstract

The utility model relates to the technical field of electrical installation, in particular to an electrical installation threading device which comprises a bottom plate, a winding frame fixedly connected to the top of the bottom plate, a winding drum arranged in the winding frame, rotating shafts fixedly connected to two ends of the winding drum, a rotating handle fixedly connected to one end of a front-end rotating shaft, and a driving chain wheel fixedly connected to one end of a rear-end rotating shaft. The driving chain wheel and the driven chain wheel are connected through a chain; the reciprocating rod is sleeved with a reciprocating plate; a through hole is formed in the reciprocating plate; a convex block is fixedly connected to the inner wall of the through hole; the inner wall of the reciprocating frame is fixedly connected with limiting rods. According to the winding device, the reciprocating plate reciprocates along the reciprocating rod while the winding drum rotates, a plastic steel wire can move towards the right side, and the situation that the plastic steel wire is knotted and difficult to pull can be avoided by reversely rotating the rotating handle.

Description

Technical Field

[0001] This utility model relates to the field of electrical installation, and in particular to a wire puller for electrical installation. Background Technology

[0002] Electrical installation wire pullers are used to guide and steer electrical wiring during installation. They are tools used in conjunction with electrical wiring installation, mainly by winding plastic-coated steel wire, connecting the plastic-coated steel wire to the electrical wiring, and then using winding and unwinding to complete the wiring. Wire pullers are also excellent auxiliary tools for pulling guide ropes in pipes. Their smooth and flexible surface allows the wire puller to easily pass through narrow passages.

[0003] When applying for this utility model, the applicant searched and found that a Chinese patent disclosed "a wire threader for electrical installation" with application number "CN202321075169.4". This patent mainly completes the installation by snapping the cover onto the support plate. When it is necessary to disassemble, simply pull the pull block away from the cover. It is simple, convenient and easy to operate. The cover covers various parts, improving the safety of use.

[0004] Although the cable threader for this electrical installation can wind the traction rope onto the surface of the take-up reel, it cannot change the winding direction. The wound plastic steel wires are messy and piled up, making it difficult to wind them evenly and orderly onto the surface of the take-up reel, thus wasting winding space. Utility Model Content

[0005] In view of this, the present invention provides a wire threader for electrical installation. The main technical problem to be solved is that the existing device cannot change the winding direction, and the wound plastic steel wire is messy and piled up, making it difficult to wind evenly and orderly on the surface of the take-up reel, thus wasting winding space.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an electrical installation cable threader, comprising a base plate, a winding frame fixedly connected to the top of the base plate, a winding drum disposed inside the winding frame, a rotating shaft fixedly connected to both ends of the winding drum, a throttle fixedly connected to one end of the front rotating shaft, a drive sprocket fixedly connected to one end of the rear rotating shaft, a reciprocating frame fixedly connected to the top, a reciprocating rod movably connected to the inner wall of the reciprocating frame, a driven sprocket fixedly connected to the rear end of the reciprocating rod, the drive sprocket and the driven sprocket being connected by a chain, a reciprocating plate sleeved on the outside of the reciprocating rod, a through hole opened inside the reciprocating plate, a protrusion fixedly connected to the inner wall of the through hole, a limit groove opened inside the through hole, a guide hole opened inside the reciprocating plate, a limit rod fixedly connected to the inner wall of the reciprocating frame, the limit rod passing through the limit groove.

[0007] By adopting the above technical solution, the traction function can be quickly realized, avoiding the situation where the plastic steel wire becomes knotted and difficult to pull.

[0008] As a further description of the above technical solution:

[0009] The rotating shaft passes through the outer wall of the winding frame, and the outer wall of the reciprocating rod is provided with a reciprocating groove, with the protrusion located inside the reciprocating groove.

[0010] By adopting the above technical solution, the reciprocating plate can move smoothly back and forth along the reciprocating rod.

[0011] As a further description of the above technical solution:

[0012] The left inlet of the through hole is larger than the right outlet, and the through hole is located between the limiting groove and the guide hole.

[0013] By adopting the above technical solution, the plastic-coated steel line enters from the left entrance and exits from the right exit.

[0014] As a further description of the above technical solution:

[0015] Both of the two rotating shafts are fixedly connected to the outer walls of the winding positioning rings, which are located at the front and rear ends of the winding frame. Both ends of the reciprocating rod are fixedly connected to the reciprocating positioning rings, which are located at the front and rear ends of the outer walls of the reciprocating frame.

[0016] By adopting the above technical solutions, the stability of the winding drum and reciprocating rod rotation is improved.

[0017] As a further description of the above technical solution:

[0018] A gantry frame is fixedly connected to the top of the base plate. A rectangular groove is provided on the inner wall of the gantry frame. Guide wheels are movably connected to the inner wall of the rectangular groove, and there are two guide wheels.

[0019] By adopting the above technical solution, the plastic steel wire can pass through the top of the gantry frame between the two guide wheels.

[0020] As a further description of the above technical solution:

[0021] The outer wall of the winding drum is wound with plastic steel wire. The other end of the plastic steel wire passes through the through hole and the middle of the two guide wheels in sequence. The other end of the plastic steel wire is fixedly connected to a wire threading head. The wire threading head is located outside the gantry frame. The outer wall of the end of the plastic steel wire connected to the wire threading head is fixedly connected to a positioning plate.

[0022] By adopting the above technical solution, when the winding drum rotates clockwise, the end of the line fixed to the wire threading head can move along the preset pipe, which facilitates the pulling of the line.

[0023] As a further description of the above technical solution:

[0024] The bottom of the base plate is movably connected to casters, and there are multiple casters.

[0025] By adopting the above technical solution, the entire device can be easily moved.

[0026] As a further description of the above technical solution:

[0027] A handrail is fixedly connected to the outer wall of the base plate, and the handrail is located on the left side of the base plate.

[0028] By adopting the above technical solution, the entire device can be moved to a designated position by using the handrail.

[0029] By employing the above technical solution, the electrical installation wire puller of this utility model has at least the following beneficial effects:

[0030] 1. Compared with the prior art, this electrical installation wire threader, when used, rotates the handle clockwise to drive the shaft and the shaft to rotate synchronously. When the winding drum rotates, it drives the drive sprocket located on the rear side of the winding frame to rotate synchronously. The drive sprocket and the driven sprocket are connected by a chain, so that the driven sprocket and the reciprocating rod rotate synchronously. The outer wall of the reciprocating rod is fitted with a reciprocating plate, and the protrusions set inside the reciprocating plate are located in the reciprocating groove opened on the outer wall of the reciprocating rod. The reciprocating groove is composed of two intersecting spiral grooves. When the reciprocating rod rotates, under the action of the limiting rod, the protrusions set inside the reciprocating plate move along the inside of the reciprocating groove, so as to realize the rotation of the winding drum. Rotating the handle counterclockwise drives the winding drum to rotate counterclockwise, so that the plastic steel wire can be retracted and wound on the winding drum. During this process, the reciprocating plate also moves back and forth along the reciprocating rod, so as to realize the regular and even winding of the plastic steel wire inside the winding drum, avoiding the plastic steel wire from getting knotted and difficult to pull.

[0031] 2. Compared with the prior art, this electrical installation cable threader has two guide wheels movably connected inside the gantry frame. The plastic steel wire passes through the middle of the two guide wheels, so that when the reciprocating plate moves, the plastic steel wire can always move smoothly between the two guide wheels, preventing the outer wall of the plastic steel wire from directly contacting the outer wall of the gantry frame and causing wear on the plastic steel wire. Attached Figure Description

[0032] Figure 1 This is a first-view overall structural diagram of a wire threader for electrical installation proposed in this utility model;

[0033] Figure 2 This is a second-view overall structural diagram of a wire threader for electrical installation proposed in this utility model;

[0034] Figure 3 This is a third-view overall structural diagram of a wire threader for electrical installation proposed in this utility model;

[0035] Figure 4 This is a schematic diagram of the reciprocating plate structure of an electrical installation cable puller proposed in this utility model.

[0036] Legend:

[0037] 1. Base plate; 2. Rewinding frame; 3. Rewind drum; 4. Shaft; 5. Turning handle; 6. Drive sprocket; 7. Reciprocating frame; 8. Reciprocating rod; 9. Driven sprocket; 10. Chain; 11. Reciprocating plate; 12. Through hole; 13. Protrusion; 14. Limiting groove; 15. Guide hole; 16. Limiting rod; 17. Rewinding positioning ring; 18. Reciprocating positioning ring; 19. Gantry frame; 20. Rectangular groove; 21. Guide wheel; 22. Plastic steel wire; 23. Wire thread; 24. Positioning plate; 25. Caster wheel; 26. Handrail. Detailed Implementation

[0038] Reference Figure 1-4 This utility model provides an electrical installation cable threader: It includes a base plate 1, a winding frame 2 fixedly connected to the top of the base plate 1, a winding drum 3 inside the winding frame 2, and rotating shafts 4 fixedly connected to both ends of the winding drum 3. The rotating shafts 4 penetrate the outer wall of the winding frame 2. A handle 5 is fixedly connected to one end of the front rotating shaft 4, and a drive sprocket 6 is fixedly connected to one end of the rear rotating shaft 4. A reciprocating frame 7 is fixedly connected to the top of the base plate 1. A reciprocating rod 8 is movably connected to the inner wall of the reciprocating frame 7. A reciprocating groove is formed on the outer wall of the reciprocating rod 8. A driven sprocket 9 is fixedly connected to the rear end of the reciprocating rod 8. The drive sprocket 6 and the driven sprocket 9 are connected by a chain 10. A reciprocating plate 11 is sleeved on the outside of the reciprocating rod 8. A through hole 12 is formed inside the reciprocating plate 11. A protrusion 13 is fixedly connected to the inner wall of the through hole 12, and the protrusion 13 is located inside the reciprocating groove. A limit groove 14 is formed inside the through hole 12. The inside of the reciprocating frame 7 is provided with a guide hole 15. The inner wall of the reciprocating frame 7 is fixedly connected with a limiting rod 16, which passes through the limiting groove 14. When using this device, rotating the handle 5 drives the rotating shaft 4 and the rotating shaft 4 to rotate synchronously. When the take-up drum 3 rotates, it drives the drive sprocket 6 located on the rear side of the take-up frame 2 to rotate synchronously. The drive sprocket 6 is connected to the driven sprocket 9 through the chain 10, so that the driven sprocket 9 and the reciprocating rod 8 rotate synchronously. The outer wall of the reciprocating rod 8 is fitted with a reciprocating plate 11. At the same time, the protrusion 13 set inside the reciprocating plate 11 is located in the reciprocating groove opened on the outer wall of the reciprocating rod 8. Under the action of the limiting rod 16, the reciprocating rod 8 rotates synchronously while the take-up drum 3 rotates, so that the reciprocating plate 11 moves back and forth along the reciprocating rod 8, so that the plastic steel wire 22 can be wound regularly and evenly inside the take-up drum 3, avoiding the situation where the plastic steel wire 22 is knotted and difficult to pull.

[0039] The left inlet of the through hole 12 is larger than the right outlet. The through hole 12 is located between the limiting groove 14 and the guide hole 15. The edges of the left inlet and the right outlet are both chamfered to prevent the plastic steel wire 22 from directly contacting the left inlet and causing wear when the reciprocating plate 11 moves.

[0040] Both rotating shafts 4 are fixedly connected to the outer walls of the winding positioning rings 17, which are located at the front and rear ends of the winding frame 2. Both ends of the reciprocating rod 8 are fixedly connected to the reciprocating positioning rings 18, which are located at the front and rear ends of the outer walls of the reciprocating frame 7, thereby improving the stability of the winding drum 3 and the reciprocating rod 8 when rotating.

[0041] A gantry frame 19 is fixedly connected to the top of the base plate 1. A rectangular groove 20 is provided on the inner wall of the gantry frame 19. Guide wheels 21 are movably connected to the inner wall of the rectangular groove 20. There are two guide wheels 21. The two guide wheels 21 are movably connected inside the gantry frame 19. The plastic steel wire 22 passes through the middle of the two guide wheels 21, so that when the reciprocating plate 11 moves, the plastic steel wire 22 can always move smoothly on the two guide wheels 21, preventing the outer wall of the plastic steel wire 22 from directly contacting the outer wall of the gantry frame 19 and causing wear to the plastic steel wire 22.

[0042] The outer wall of the winding drum 3 is wound with plastic steel wire 22. The other end of the plastic steel wire 22 passes through the through hole 12 and the middle of the two guide wheels 21 in sequence. The other end of the plastic steel wire 22 is fixedly connected to a wire thread 23. The wire thread 23 is located outside the gantry frame 19. The outer wall of the end of the plastic steel wire 22 connected to the wire thread 23 is fixedly connected to a positioning plate 24 to prevent the end of the plastic steel wire 22 connected to the wire thread 23 from coming out of the interior of the gantry frame 19.

[0043] The bottom of the base plate 1 is movably connected with casters 25, and there are multiple casters 25. The outer wall of the base plate 1 is fixedly connected with a handrail 26, which is located on the left side of the base plate 1 and can quickly move the entire device.

[0044] Working principle: When using this device, first connect the end of the line to the threading head 23, then turn the handle 5 clockwise to drive the shaft 4 and the shaft 4 to rotate synchronously. When the take-up drum 3 rotates, it drives the drive sprocket 6 located behind the take-up frame 2 to rotate synchronously. The drive sprocket 6 and the driven sprocket 9 are connected by the chain 10, so that the driven sprocket 9 and the reciprocating rod 8 rotate synchronously. The outer wall of the reciprocating rod 8 is fitted with a reciprocating plate 11. At the same time, the protrusion 13 set inside the reciprocating plate 11 is located in the reciprocating groove opened on the outer wall of the reciprocating rod 8. Under the action of the limiting rod 16, the reciprocating rod 8 rotates synchronously while the take-up drum 3 rotates, so that the reciprocating plate 11 moves back and forth along the reciprocating rod 8, so that the plastic steel wire 22 can move to the right, driving the end of the line to move along the pipe. Turning the handle 5 in the opposite direction can make the plastic steel wire 22 wound evenly and regularly inside the take-up drum 3, avoiding the plastic steel wire 22 from getting tangled and difficult to pull.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wiring harness for electrical installation, comprising a base plate (1), characterized in that: A winding frame (2) is fixedly connected to the top of the base plate (1). A winding drum (3) is provided inside the winding frame (2). A rotating shaft (4) is fixedly connected to both ends of the winding drum (3). A throttle (5) is fixedly connected to one end of the front end of the rotating shaft (4). A drive sprocket (6) is fixedly connected to one end of the rear end of the rotating shaft (4). A reciprocating frame (7) is fixedly connected to the top. A reciprocating rod (8) is movably connected to the inner wall of the reciprocating frame (7). A driven sprocket (9) is fixedly connected to the rear end of the reciprocating rod (8). The driven sprocket (6) and the driven sprocket (9) are connected by a chain (10). The reciprocating rod (8) is fitted with a reciprocating plate (11). The reciprocating plate (11) has a through hole (12) inside. The inner wall of the through hole (12) is fixedly connected with a protrusion (13). The through hole (12) has a limit groove (14) inside. The reciprocating plate (11) has a guide hole (15) inside. The inner wall of the reciprocating frame (7) is fixedly connected with a limit rod (16), which passes through the limit groove (14).

2. The wiring harness for electrical installation according to claim 1, characterized in that: The rotating shaft (4) passes through the outer wall of the winding frame (2), and the outer wall of the reciprocating rod (8) is provided with a reciprocating groove, and the protrusion (13) is located inside the reciprocating groove.

3. The wiring harness for electrical installation according to claim 1, characterized in that: The left inlet of the through hole (12) is larger than the right outlet, and the through hole (12) is located between the limiting groove (14) and the guide hole (15).

4. The wiring harness for electrical installation according to claim 1, characterized in that: Both of the two rotating shafts (4) are fixedly connected to the outer walls of the winding positioning rings (17), which are located at the front and rear ends of the winding frame (2). Both ends of the reciprocating rod (8) are fixedly connected to the reciprocating positioning rings (18), which are located at the front and rear ends of the outer walls of the reciprocating frame (7).

5. A wiring harness for electrical installation according to claim 1, characterized in that: The top of the base plate (1) is fixedly connected to a gantry frame (19), and a rectangular groove (20) is provided on the inner wall of the gantry frame (19). A guide wheel (21) is movably connected to the inner wall of the rectangular groove (20), and there are two guide wheels (21).

6. A wiring harness for electrical installation according to claim 5, characterized in that: The outer wall of the winding drum (3) is wound with plastic steel wire (22). The other end of the plastic steel wire (22) passes through the through hole (12) and the middle of the two guide wheels (21) in sequence. The other end of the plastic steel wire (22) is fixedly connected to a threading head (23). The threading head (23) is located outside the gantry frame (19). The outer wall of the end of the plastic steel wire (22) connected to the threading head (23) is fixedly connected to a positioning plate (24).

7. A wiring harness for electrical installation according to claim 1, characterized in that: The bottom of the base plate (1) is movably connected to casters (25), and there are multiple casters (25).

8. A wiring harness for electrical installation according to claim 1, characterized in that: A handrail (26) is fixedly connected to the outer wall of the base plate (1), and the handrail (26) is located on the left side of the base plate (1).

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