Threading apparatus for electrical installation

Abstract

The utility model discloses a threading device for electrical installation, belongs to the technical field of electrical installation, and mainly solves the technical problems that although the threading device for electrical installation in the prior art can wind a traction rope on the surface of a take-up reel, the winding direction cannot be changed, wound plastic steel wires are mutually disordered and stacked, and the threading device is inconvenient to use. In order to solve the problems that in the prior art, a threading device is arranged on the surface of a take-up reel, the threading device is difficult to wind on the surface of the take-up reel uniformly and orderly, and the winding space is wasted, the threading device comprises a working box, a wire spool is rotationally arranged in the working box, a plastic steel wire is wound on the surface of the wire spool and located between two positioning pulleys, and a reciprocating screw rod is rotationally connected to the interior of the working box through a bearing. A positioning guide assembly is arranged on the surface of the reciprocating lead screw, transmission shafts are rotationally connected into the working box through bearings, the ends, close to each other, of the two transmission shafts are fixedly connected with the two ends of a wire spool, and a handle is fixed to one end of one transmission shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical installation, and more specifically, to a wire threader for electrical installation. Background Art

[0002] The wire threader for electrical installation is a device used to guide the threading of electrical lines during the installation of electrical lines. It mainly connects the electrical lines with the plastic-steel wire by winding it, and then uses the retraction and release to complete the threading of the electrical lines. The wire threader is an excellent auxiliary tool for pulling the guide rope in the pipeline. The smooth and elastic surface allows the perforator to easily pass through narrow passages.

[0003] However, there are various types of wire threaders in the prior art. For example, utility model patent CN219760488U relates to a wire threader for electrical installation. The utility model can be installed by clamping a cover on a support plate. When disassembly is required, it is only necessary to pull the pull block to the side away from the cover. It is simple and convenient, easy to operate, and various parts are shielded by the cover to improve safety of use.

[0004] Although the wire threader of the electrical installation can reel the traction rope onto the surface of the take-up drum, the wire threader cannot change the reeling direction. The reeled plastic-steel wires are messy and piled up, making it difficult to evenly and orderly wind them on the surface of the take-up drum, wasting winding space. In order to avoid this phenomenon, it is necessary to design a safety protection device for electrical installation. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] To achieve the above object, the utility model provides a wire threader for electrical installation, which is achieved by the following specific technical means:

[0007] A wire threader for electrical installation comprises a working box, wherein a wire winding drum is rotatably arranged inside the working box, a plastic steel wire is wound on the surface of the wire winding drum, the plastic steel wire is located between two positioning pulleys, a reciprocating screw rod is rotatably connected to the inside of the working box via a bearing, a positioning guide assembly is arranged on the surface of the reciprocating screw rod, a transmission shaft is rotatably connected to the inside of the working box via a bearing, and the ends of the two transmission shafts close to each other are fixedly connected to the two ends of the wire winding drum, and a handle is fixed to one end of one of the transmission shafts.

[0008] Preferably, the positioning and guiding assembly comprises a movable seat, a fixed frame, a rotating shaft, a positioning pulley, a guide rod, a mounting frame and a rotating motor; the surface of the reciprocating screw rod is threadedly connected to the movable seat, the top of the movable seat is fixedly connected to the fixed frame, and the interior of the fixed frame is rotatably connected to two positioning pulleys via a rotating shaft.

[0009] Preferably, a mounting frame is fixedly connected to the back of the working box, a rotating motor is fixedly installed on the back of the mounting frame, and the output end of the rotating motor is fixed to one end of the reciprocating screw rod, a guide rod is fixedly connected to the inside of the working box, and the guide rod is fixed to one side of the reciprocating screw rod, and the guide rod is slidably installed with the movable seat.

[0010] Preferably, two fixed support rods are provided on the inner wall of the working box, and the ends of the two fixed support rods close to each other are fixedly connected to a fixing frame, and the fixing frame is U-shaped, and the inside of the fixing frame is rotatably connected to a guide roller through a rotating shaft, and the handle is located in front of the working box.

[0011] Preferably, a top cover is provided on the top of the working box, a plurality of fastening plates are fixedly connected to the bottom of the top cover, a plurality of grooves are opened on the top of the working box, the fastening plates can be embedded in the grooves, and a plurality of connecting bolts are fixed to the internal threads of the fastening plates.

[0012] Preferably, a wire outlet hole is provided on one side surface of the working box, and the plastic steel wire can pass through the wire outlet hole. A limiting tube is fixedly connected to one side surface of the working box, and a matching seat is embedded in the interior of the limiting tube, and one end of the matching seat is fixedly connected to a threading steel rope.

[0013] Preferably, a perspective window is provided through the top of the top cover, and the perspective window is used to observe the threading work in the working box in real time. Two handles are fixedly connected to the top of the top cover, and the two handles are symmetrically arranged.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0015] After the threader completes threading, when the plastic-steel wire body needs to be reeled up, the hand crank drives the transmission shaft to rotate, shakes the winding drum, and drives the plastic-steel wire to be wound through the winding drum, and starts the rotating motor at the same time, and provides driving force to the reciprocating screw rod through the rotating motor. Through the guiding effect of the guide rod, the moving seat moves back and forth on the surface of the reciprocating screw rod, and the moving seat moves at a uniform speed. The positioning and guiding effect of the two positioning pulleys is utilized to make the rotating positioning pulley change the guiding position of the plastic-steel wire at a uniform speed, and the plastic-steel wire is evenly and orderly wound on the surface of the winding drum, so as to prevent the plastic-steel wire from being cluttered and piled up during the winding process, and the winding space will not be wasted, which is neat and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a perspective structural schematic diagram of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the positioning guide component;

[0020] Figure 4 is a schematic diagram of the structure of the guide roller;

[0021] Figure 5 The figure is a schematic diagram of the cooperation between the working box and the top cover;

[0022] Figure 6 It is a partial schematic diagram of the utility model.

[0023] In the figure: 1. working box; 2. reciprocating screw rod; 3. moving seat; 4. fixed frame; 5. rotating shaft; 6. positioning pulley; 7. guide rod; 8. mounting frame; 9. rotating motor; 10. transmission shaft; 11. winding drum; 12. plastic steel wire; 13. fixed support rod; 14. fixed frame; 15. handle; 16. guide roller; 17. top cover; 18. fastening plate; 19. connecting bolt; 20. outlet hole; 21. limit tube; 22. matching seat; 23. threading steel rope; 24. perspective window; 25. handle. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0027] like Figure 1 , Figure 2 as well as Figure 3 As shown, it is a structural schematic diagram of the electrical installation threader in this embodiment. The electrical installation threader is an excellent auxiliary tool for pulling the guide rope in the pipeline, which is convenient for guiding the electrical line. The threader includes a working box 1 and a winding drum 11. The interior of the working box 1 is rotatably connected to a reciprocating screw rod 2 through a bearing. The surface of the reciprocating screw rod 2 is threadedly connected to a moving seat 3. The top of the moving seat 3 is fixedly connected to a fixed frame 4. The interior of the fixed frame 4 is rotatably connected to two positioning pulleys 6 through a rotating shaft 5. The back of the working box 1 is fixedly connected to a mounting frame 8. A rotating motor 9 is fixedly installed on the back of the mounting frame 8, and the output end of the rotating motor 9 is fixed to one end of the reciprocating screw rod 2. The interior of the working box 1 is fixedly connected to a guide rod 7, and the guide rod 7 is fixed to one side of the reciprocating screw rod 2. The guide rod 7 is slidably installed with the moving seat 3. A winding drum 11 is rotatably arranged inside the box 1, and a plastic-steel wire 12 is wound on the surface of the winding drum 11, and the plastic-steel wire 12 is located between two positioning pulleys 6. After the threader completes threading, when the plastic-steel wire 12 needs to be reeled in, the winding drum 11 is manually cranked to drive the plastic-steel wire 12 to be wound by the rotating winding drum 11, and at the same time, the rotating motor 9 is started to provide a driving force to the reciprocating screw rod 2 by the rotating motor 9. Through the guiding effect of the guide rod 7, the movable seat 3 is reciprocated on the surface of the reciprocating screw rod 2, and the movable seat 3 moves at a uniform speed. The positioning and guiding effect of the two positioning pulleys 6 is utilized to make the rotating positioning pulley 6 change the guiding position of the plastic-steel wire 12 at a uniform speed, and the plastic-steel wire 12 is evenly and orderly wound on the surface of the winding drum 11, so as to prevent the plastic-steel wire 12 from being cluttered and piled up during the winding process, and the winding space will not be wasted, which is neat and beautiful.

[0028] It is worth noting that the movable seat 3, fixed frame 4, rotating shaft 5, positioning pulley 6, guide rod 7, mounting frame 8 and rotating motor 9 in this embodiment constitute a positioning and guiding assembly, which is used to position the transportation of the plastic steel wire 12 and change the guiding position of the plastic steel wire 12 at a uniform speed.

[0029] In addition, if Figure 2 As shown, in this embodiment, the interior of the working box 1 is rotatably connected to a transmission shaft 10 via a bearing, and the ends of the two transmission shafts 10 that are close to each other are fixedly connected to the two ends of the winding reel 11, and a handle 15 is fixed to one end of one of the transmission shafts 10, and the handle 15 is located in front of the working box 1.

[0030] like Figure 2 and Figure 4As shown, in this embodiment, two fixed support rods 13 are provided on the inner wall of the working box 1, and the ends of the two fixed support rods 13 close to each other are fixedly connected to a fixing frame 14, and the fixing frame 14 is U-shaped, and the interior of the fixing frame 14 is rotatably connected to a guide roller 16 through a rotating shaft. The stretched or reeled plastic-steel wire 12 is guided and transported by the two staggered guide rollers 16.

[0031] like Figure 5 As shown, in this embodiment, a top cover 17 is provided on the top of the working box 1, and a plurality of fastening plates 18 are fixedly connected to the bottom of the top cover 17. A plurality of grooves are provided on the top of the working box 1, and the fastening plates 18 can be embedded in the grooves. A plurality of connecting bolts 19 are fixed to the internal threads of the fastening plates 18. By screwing the connecting bolts 19, the top cover 17 can be removed from the working box 1.

[0032] like Figure 6 As shown, in this embodiment, a wire outlet hole 20 is provided on one side surface of the working box 1, and the plastic-steel wire 12 can pass through the wire outlet hole 20. The wire outlet hole 20 can allow the transported plastic-steel wire 12 to pass through. A limiting tube 21 is fixedly connected to one side surface of the working box 1, and a matching seat 22 is embedded in the interior of the limiting tube 21. One end of the matching seat 22 is fixedly connected to a threading steel rope 23.

[0033] like Figure 1 As shown, in this embodiment, a perspective window 24 is provided through the top of the top cover 17, and the perspective window 24 is used to observe the threading work in the work box 1 in real time. Two handles 25 are fixedly connected to the top of the top cover 17, and the handles 25 can be used to facilitate carrying the threader.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wire threader for electrical installation, comprising a working box (1), wherein a wire winding drum (11) is rotatably arranged inside the working box (1), a plastic steel wire (12) is wound around the surface of the wire winding drum (11), and the plastic steel wire (12) is located between two positioning pulleys (6), characterized in that: The interior of the working box (1) is rotatably connected to a reciprocating screw rod (2) via a bearing, a positioning guide assembly is arranged on the surface of the reciprocating screw rod (2), a transmission shaft (10) is rotatably connected to the interior of the working box (1) via a bearing, and the ends of the two transmission shafts (10) close to each other are fixedly connected to the two ends of the winding disk (11), one end of one of the transmission shafts (10) is fixedly connected to a handle (15), the positioning guide assembly comprises a moving seat (3), a fixed frame (4), a rotating shaft (5), a positioning pulley (6), a guide rod (7), a mounting frame (8) and a rotating motor (9), the surface of the reciprocating screw rod (2) is threadedly connected to the moving seat (3), the top of the moving seat (3) is fixedly connected to A fixed frame (4) is provided, wherein the interior of the fixed frame (4) is rotatably connected to two positioning pulleys (6) via a rotating shaft (5); a top cover (17) is provided on the top of the working box (1); a plurality of fastening plates (18) are fixedly connected to the bottom of the top cover (17); a plurality of grooves are provided on the top of the working box (1), the fastening plates (18) can be embedded in the grooves, a plurality of connecting bolts (19) are fixedly connected to the internal threads of the fastening plates (18); a perspective window (24) is provided through the top of the top cover (17), and the perspective window (24) is used to observe the threading work in the working box (1) in real time; two handles (25) are fixedly connected to the top of the top cover (17), and the two handles (25) are symmetrically arranged.

2. The electrical installation threader according to claim 1, characterized in that: The back of the working box (1) is fixedly connected to a mounting frame (8), the back of the mounting frame (8) is fixedly mounted with a rotating motor (9), and the output end of the rotating motor (9) is fixed to one end of the reciprocating screw rod (2), the interior of the working box (1) is fixedly connected to a guide rod (7), and the guide rod (7) is fixed to one side of the reciprocating screw rod (2), and the guide rod (7) is slidably mounted with the moving seat (3).

3. The electrical installation threader according to claim 1, characterized in that: The inner wall of the working box (1) is provided with two fixed support rods (13), and the ends of the two fixed support rods (13) close to each other are fixedly connected to a fixed frame (14), and the fixed frame (14) is U-shaped, and the inside of the fixed frame (14) is rotatably connected to a guide roller (16) via a rotating shaft, and the handle (15) is located in front of the working box (1).

4. The electrical installation threader according to claim 1, characterized in that: A wire outlet hole (20) is provided through one side surface of the working box (1), and the plastic steel wire (12) can pass through the wire outlet hole (20). A limit tube (21) is fixedly connected to one side surface of the working box (1), and a matching seat (22) is embedded in the inside of the limit tube (21), and one end of the matching seat (22) is fixedly connected to a threading steel rope (23).

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