Adjustable speed electric threading device
The adjustable-speed electric wire threading device uses a drive unit to rotate the wire reel. Combined with the guide tube and conduit design, it solves the problems of time-consuming, labor-intensive, and wear-prone manual wire pulling, and achieves an efficient and stable wire threading process that is adaptable to different conduit layouts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-07-21
Smart Images

Figure CN224537694U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of wire threading equipment, specifically to an adjustable speed electric threading device. Background Technology
[0002] In building electrical systems, cable conduits are typically installed inside the building walls to facilitate future maintenance or replacement of circuits. Wires are then passed through these conduits, thus protecting them. However, running wires through conduits is difficult because wires are flexible and conduits often have bends during installation; it's challenging to directly thread wires through curved conduits.
[0003] Traditionally, construction workers first thread a guide rope through the conduit, then tie the wire to the rope. The workers then pull the rope to guide the wire through the conduit. Because workers pull the rope piece by piece, they cannot control the pulling force. Excessive force increases friction between the conduit and the wire, increasing wear and tear. Furthermore, the rope sways during manual pulling, further increasing wear and tear. This compromises construction quality and is time-consuming, labor-intensive, and inefficient.
[0004] Therefore, it is necessary to study an adjustable speed electric threading device. Utility Model Content
[0005] Therefore, the purpose of this utility model is to provide an adjustable speed electric wire threading device, which effectively solves the problems of time-consuming and labor-intensive manual wire pulling, low efficiency, and the increased wear and tear on the wires caused by the conduit during the wire pulling process, which makes it impossible to guarantee the construction quality.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is: an adjustable speed electric threading device, characterized in that: it includes a winding frame, a winding reel, a traction rope, a driving component, a guide tube, and a connecting hose;
[0007] The winding reel is rotatably mounted on the winding frame, with one end of its rotating shaft extending outward and connected to the driving component for transmission.
[0008] The guide tube is configured as an arc that bends from top to bottom. The guide tube is fixed on the winding frame. The upper end of the guide tube is matched with the wire exit of the winding reel. The lower end of the guide tube extends outward and is connected to a connecting hose.
[0009] The traction rope is wound on a reel, with one end of the traction rope extending outward through a guide tube and a connecting hose.
[0010] Furthermore, a hinge seat is fixed on the winding frame, and a first guide tube is rotatably mounted on the hinge seat. The first end of the first guide tube is connected to the docking hose. A locking bolt is provided on the hinge seat to lock the rotation of the first guide tube.
[0011] Furthermore, the upper end of the guide tube and the end of the first conduit are both funnel-shaped.
[0012] Furthermore, the driving component is an electric drill, the extension end of the rotating shaft is adapted to the output end of the electric drill, the electric drill has a battery, and the electric drill is equipped with a speed control switch and a forward / reverse switch.
[0013] Furthermore, the reel has a mounting cavity at its center, and a fixing hole communicating with the mounting cavity is provided at the bottom of the winding groove on the reel. A hook is fixed inside the mounting cavity, and the traction rope is wound inside the winding groove, with one end passing through the fixing hole and fixed to the hook. A mounting sleeve is fixed at the center of the mounting cavity, and the mounting sleeve is fixedly connected to the bottom surface of the mounting cavity through a fixing rod.
[0014] Furthermore, the winding frame includes a base plate and a support frame, the support frames being arranged opposite each other and fixed on the front and rear sides of the base plate; the winding reel is arranged between the two support frames and fixedly mounted on the rotating shaft.
[0015] Furthermore, a handrail is provided above the winding reel, and both ends of the handrail are fixedly connected to the corresponding brackets via connecting rods.
[0016] The beneficial effects of the above technical solution are as follows: By setting a guide tube, this utility model ensures that the traction rope is under tension during the winding process. The traction rope contacts the guide tube inside the guide tube, preventing the traction rope from shaking and avoiding wear on the wire caused by the shaking of the traction rope. The winding reel is set and driven by a drive component. The rotation of the winding reel provides a stable tension to the traction rope, avoiding excessive tension during manual wire pulling and thus preventing wear on the wire. This improves construction efficiency and ensures construction quality.
[0017] This invention incorporates a connecting flexible hose, which is highly flexible and can be bent and twisted, making it easy to adapt to electrical conduits of different heights.
[0018] In this invention, a first guide tube is hinged to the winding frame. The first guide tube can be rotated to adjust its angle, making it easy to adapt to electrical conduits of different heights. At the same time, the first guide tube is locked after the angle is adjusted, so that the traction rope is more stable when pulling inside the first guide tube.
[0019] In this invention, the upper end of the guide tube and the lower end of the first conduit are both flared, and the upper end of the guide tube and the lower end of the first conduit are both arc-shaped. When the wire enters from the first conduit and exits from the upper end of the guide tube, it contacts the arc-shaped surface, which reduces the friction between the wire and the lower end of the first conduit and the upper end of the guide tube.
[0020] In this invention, the driving component is a hand drill, which has a built-in battery, making it convenient to use in places where it is inconvenient to draw power from a wire. At the same time, the hand drill and the spindle can be detached, making it easy to carry the device. The hand drill is equipped with a speed control switch, which can use different drawing speeds for wires of different diameters and curvatures, avoiding excessive pulling force that would increase friction between the wire and the wire, and reducing wear on the wire during the drawing process.
[0021] In summary, this utility model has a novel structure. By using a threading device, it avoids the instability of the pulling force and the swaying of the traction rope during manual wire pulling, which can cause wear and tear on the wires caused by the conduit. This improves construction efficiency and ensures construction quality. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0023] Figure 2 This is a front view structural diagram of the present invention.
[0024] Attached reference numerals: 1 is the winding frame, 101 is the base plate, 102 is the support, 2 is the winding reel, 3 is the drive unit, 4 is the guide tube, 5 is the connecting hose, 6 is the hinge seat, 7 is the first guide tube, 8 is the traction rope, 9 is the handrail, 10 is the speed control switch, 11 is the forward / reverse switch, and 12 is the hook. Detailed Implementation
[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
[0026] Example 1: This example aims to provide an adjustable-speed electric wire pulling device, which is mainly used for pulling wires when inserting them into conduits embedded in walls. It addresses the problems of time-consuming, labor-intensive, and inefficient manual wire pulling, which can easily increase wear and tear on the wires caused by the conduits during the pulling process and cannot guarantee construction quality. This example provides an adjustable-speed electric wire pulling device.
[0027] In this embodiment, as Figure 1-2 As shown, an adjustable-speed electric threading device includes a winding frame 1, a winding reel 2, a traction rope 8, a drive component 3, a guide tube 4, and a connecting hose 5. The winding frame 1 provides support for the winding reel 2. The winding frame 1 includes a base plate 101 and brackets 102. The brackets 102 are arranged opposite each other and fixed on the front and rear sides of the base plate 101. The brackets 102 are configured with a triangular structure, which can provide more stable support. The winding reel 2 is located between the two brackets 102 and is fixedly mounted on a rotating shaft. The two brackets 102 have corresponding shaft holes. The rotating shaft is rotatably mounted in the shaft holes. One end of the rotating shaft extends outward and is rotatably connected to the drive component 3.
[0028] The driving component 3 is a hand drill, with the extension end of the spindle adapted to the output end of the hand drill. The hand drill has a built-in battery, a design that facilitates use in locations where it's inconvenient to draw power from wires, improving the practicality of the wire-threading device. The hand drill and spindle can be detached for easy carrying. The hand drill drives the reel 2 to rotate, ensuring stable tension on the traction rope during the wire-pulling process, preventing excessive tension and wear on the wire during manual pulling, thus ensuring construction quality. The hand drill is equipped with a speed control switch 10 and a forward / reverse switch 11. The speed control switch 10 allows for different pulling speeds for conduits of different diameters and curvatures, preventing excessive tension and friction between the conduit and wire, and reducing wire wear during pulling. In this embodiment, a hand drill is used as the driving component; in other embodiments, a handwheel or drive motor can be used to drive the rotation.
[0029] The guide tube 4 is designed as an arc that curves downwards. This arc shape allows for a smooth transition when the traction rope 8 and the wire move within the guide tube 4, ensuring they pass smoothly and reducing friction. The guide tube 4 is fixed to the bracket 102 by a support rod. The upper end of the guide tube 4 corresponds to the wire exit point of the winding reel 2, and the lower end extends outwards. This design ensures that the traction rope 8 is under tension during winding, and that the traction rope 8 contacts the guide tube 4 within it, preventing it from swaying and avoiding wear on the wire caused by swaying. A connecting hose 5 is connected to the lower end of the guide tube 4. This hose is highly flexible, allowing it to be bent and twisted to accommodate different heights of conduit.
[0030] A hinge seat 6 is fixed on the base plate 101, and the hinge seat 6 is located on the right side of the guide tube 4. The hinge seat 6 has a hinge hole. The first end of the first guide tube 7 is connected to the docking hose 5. The front and rear sides of the first guide tube 7 are fixedly connected with hinge shafts that are adapted to the hinge hole. The hinge shafts are rotatably fitted into the hinge hole. The first guide tube 7 can be rotated to adjust the angle, which is convenient to adapt to the electric conduit of different heights. The hinge seat 6 is provided with a locking bolt, which can lock the first guide rod 7 with the adjusted angle to maintain the adjusted angle and make the traction rope 8 more stable when pulling in the first guide tube.
[0031] The upper end of the guide tube 4 and the end of the first conduit 7 are both funnel-shaped. This design means that the upper end of the guide tube 4 and the end of the first conduit 7 are both arc-shaped. When the wire enters from the first conduit 7 and exits from the upper end of the guide tube 4, it contacts the arc-shaped surface, which reduces the friction between the wire and the end of the first conduit 7 and the upper end of the guide tube 4.
[0032] The cable reel 2 has a mounting cavity at its center. A fixing hole communicating with the mounting cavity is opened at the bottom of the cable groove on the cable reel 2. A hook 12 is fixed inside the mounting cavity. A traction rope 8 is wound inside the cable groove, with one end passing through the fixing hole and fixed to the hook 12, and the other end passing through the guide tube 4, the connecting hose 5, and the first conduit 7 in sequence and extending outwards. A mounting sleeve is fixed at the center of the mounting cavity, and the mounting sleeve is fixedly connected to the bottom surface of the mounting cavity via a fixing rod. A handrail 9 is positioned above the cable reel, and both ends of the handrail 9 are fixedly connected to the corresponding bracket 102 via connecting rods.
[0033] The working principle of this embodiment is as follows: First, place the wire threading device at the position where the wire needs to be threaded. Thread the traction rope 8 into the guide tube 4 and out from the end of the first conduit 7. Then, thread the traction rope 8 into the electrical conduit and out from the other end of the electrical conduit. Tie the wire and the traction rope 8 together. Adjust the angle of the first conduit 7 and lock it so that the lower end of the first conduit corresponds to the outlet of the electrical conduit. Install the electric drill and adjust the speed according to the site conditions. Then, drive the reel 2 to rotate and pull the traction rope 8. The traction rope 8 drives the wire to enter the electrical conduit. The wire then enters the first conduit 7 and comes out from the upper end of the guide tube 4. Then, turn off the electric drill and separate the wire from the traction rope 8. The wire threading into the electrical conduit is now complete. After use, the electric drill can be removed.
Claims
1. A speed-adjustable electric threading device, characterized in that: Includes winding frame, reel, traction rope, drive unit, guide tube, and docking hose; The winding reel is rotatably mounted on the winding frame, with one end of its rotating shaft extending outward and connected to the driving component for transmission. The guide tube is configured as an arc that bends from top to bottom. The guide tube is fixed on the winding frame. The upper end of the guide tube is matched with the wire exit of the winding reel. The lower end of the guide tube extends outward and is connected to a connecting hose. The traction rope is wound on the reel, with one end of the traction rope passing through the guide tube and the docking hose and extending outward. A hinge seat is fixed on the winding frame, and a first guide tube is rotatably mounted on the hinge seat. The first end of the first guide tube is connected to the docking hose. A locking bolt is provided on the hinge seat to lock the rotation of the first guide tube. The driving component is an electric drill, the extension end of the rotating shaft is adapted to the output end of the electric drill, the electric drill has a battery, and the electric drill is equipped with a speed control switch and a forward / reverse switch.
2. The adjustable speed electric threading device according to claim 1, characterized in that: The upper end of the guide tube and the end of the first guide tube are both funnel-shaped.
3. The adjustable speed electric threading device according to claim 1, characterized in that: The reel has a mounting cavity at its center. The bottom of the winding groove on the reel has a fixing hole that communicates with the mounting cavity. A hook is fixed inside the mounting cavity. The traction rope is wound inside the winding groove, and one end of the rope passes through the fixing hole and is fixed to the hook. A mounting sleeve is fixed at the center of the mounting cavity. The mounting sleeve is fixedly connected to the bottom surface of the mounting cavity through a fixing rod.
4. The adjustable-speed electric threading device according to claim 1, characterized in that: The winding frame includes a base plate and a support frame, with the support frame positioned opposite each other and fixed on the front and rear sides of the base plate; the winding reel is positioned between the two support frames and fixedly mounted on the rotating shaft.
5. The adjustable speed electric threading device according to claim 4, characterized in that: A handrail is provided above the winding reel, and both ends of the handrail are fixedly connected to the corresponding brackets via connecting rods.