Wire tube lead device

Abstract

The utility model relates to the technical field of building electrical construction, in particular to a wire tube lead device which comprises a lower shell and an upper shell, the upper shell is fixedly arranged on the left side of the upper surface of the lower shell, a forward and reverse rotation switch is installed on the left side face of the upper shell, a gear motor is arranged in the upper shell, and a driving main shaft is vertically arranged on the left side in the lower shell. A main pressure feeding wheel is assembled on the driving main shaft, an arc-shaped groove is formed in the annular surface of the main pressure feeding wheel, driven shafts are arranged on the right side of the main pressure feeding wheel at intervals, and auxiliary pressure feeding wheels are assembled on the driven shafts. The problems of low wire leading efficiency, large structural size, heavy weight and inconvenience in carrying and use of an electric threading device are solved. The wire threading device is convenient to carry, use and operate, the wire threading device of a steel wire rope type can be automatically threaded into a wire tube, the threading efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building electrical construction, in particular to an electric wire tube lead-in device. Background Art

[0002] In the process of building electrical construction, the threading of wire conduits is an important construction task. According to the construction requirements, the wiring conduits need to be placed in the walls of the building by pre-buried methods, and then the wires are passed through the wiring conduits for wiring processing, so as to carry out the wiring processing of building electricity.

[0003] In the prior art, there are usually two ways to thread the wire tube. One is to use a manual wire threader with a steel wire rope. This method requires manual threading and wire guiding operations, which is labor-intensive, inconvenient to operate, and has low wire guiding efficiency. The other is to use an electric wire threader for wire guiding. However, the electric wire threader has a large structure and is heavy, making it inconvenient to carry and use. Therefore, it is necessary to develop a new type of wire tube threading and wire guiding device for construction to improve threading efficiency, reduce labor intensity, and be convenient to carry and use. Utility Model Content

[0004] In view of the existing deficiencies, the utility model provides a wire conduit lead-in device to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A wire tube lead-in device comprises a lower shell and an upper shell, wherein the upper shell is fixedly arranged on the upper surface of the lower shell at a position slightly to the left, a forward and reverse switch is installed on the left side of the upper shell, a reduction motor is arranged inside the upper shell, and the reduction motor is electrically connected to the forward and reverse switch, a driving spindle is vertically arranged on the left side inside the lower shell, and the upper end of the driving spindle is fixedly connected to the output end of the reduction motor, a main pressure feeding wheel is mounted on the driving spindle, and an arc-shaped groove is provided on the annular surface of the main pressure feeding wheel, a driven shaft is arranged at intervals on the right side of the main pressure feeding wheel, a secondary pressure feeding wheel is mounted on the driven shaft, and the secondary pressure feeding wheel has the same specifications as the main pressure feeding wheel, a wire outlet is provided on the rear end face of the lower shell, and a wire inlet is provided on the front end face.

[0007] Furthermore, a wire inlet conduit is fixedly connected to the wire inlet port of the lower shell, and a front end of the wire inlet conduit is expanded.

[0008] Furthermore, a quick-release connector is fixedly provided at the wire outlet of the lower shell, a metal bellows is fixedly connected to the outer side of the quick-release connector, and a plug-in tube is fixedly provided at the left end of the metal bellows.

[0009] Furthermore, a U-shaped fixing bracket is inserted into the right side of the lower shell, two ends of the left side of the fixing bracket are sleeved on the driven shaft, and a bearing is installed at the connection between the driven shaft and the fixing bracket.

[0010] Furthermore, the fixed bracket is slidably connected to the lower shell, an adjusting screw is arranged inside the right end surface of the fixed bracket, and the adjusting screw is screwed together with the fixed bracket by a thread, a knob is fixed at the right end of the adjusting screw, and the left end is rotatably connected to the lower shell through a movable connecting seat.

[0011] Furthermore, the annular surfaces of the main pressing wheel and the auxiliary pressing wheel are both covered with a layer of rubber pad.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model is convenient to carry and use, easy to operate, and can automatically thread the wire rope-type threader into the wire tube, thereby improving threading efficiency and reducing labor intensity.

[0014] 2. In the utility model, a wire inlet duct is fixedly connected to the wire inlet of the lower shell body. The wire inlet duct is arranged to facilitate the accurate introduction of the wire threader into the device, and plays a guiding and supporting role for the wire threader, ensuring that the wire threader can smoothly enter the inside of the device and avoid bending and jamming at the wire inlet. The front end of the wire inlet duct is expanded, so that the wire threader can enter the wire inlet duct more smoothly, reducing the friction with the wall of the wire inlet duct and improving the convenience of operation.

[0015] 3. The quick-release connector is convenient for connecting and fixing the metal bellows. It is also convenient for removing the metal bellows when the device is not in use, reducing the overall length of the device and facilitating storage and carrying. The plug-in tube design allows the user to connect the metal bellows with the wire tube, and use the plug-in tube and the wire tube to support the device as a whole. The metal bellows has good flexibility and can adapt to various complex wire pipes and bending angles, thereby changing the incoming line direction of the device, making it easy to perform lead-in operations from different positions and angles.

[0016] 4. The fixed bracket is provided to position and support the driven shaft, ensuring the stability of the auxiliary pressure feeding wheel and preventing the auxiliary pressure feeding wheel from loosening and deviating during the wire guiding process. At the same time, the rotation of the adjusting screw can drive the fixed bracket to move horizontally, and then drive the auxiliary pressure feeding wheel to move through the fixed bracket, so that the position of the auxiliary pressure feeding wheel and the distance between it and the main pressure feeding wheel can be accurately adjusted, and the wire guiding operation can be performed on threaders of different diameters, thereby increasing the use range of the device.

[0017] 5. The main pressure wheel and the auxiliary pressure wheel are covered with a layer of rubber pads on the annular surface. The rubber pads can increase the friction between the main pressure wheel and the auxiliary pressure wheel and the surface of the threader, ensuring the stability of the threader during the pressure feeding process, thereby ensuring that the threader is not easy to slide or fall off during the transmission process. At the same time, the rubber pads can reduce the wear and indentation of the main pressure wheel and the auxiliary pressure wheel on the surface of the threader, reducing the wear of the threader during the transmission process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 This is a schematic structural diagram of the utility model from another angle.

[0020] Figure 3 It is a top view of the utility model.

[0021] Figure 4 It is a schematic diagram of the internal structure of the upper shell and the lower shell in the utility model.

[0022] Figure 5 This is a schematic structural diagram of the internal structure of the lower shell of the utility model from another angle.

[0023] Figure 6 This is a schematic diagram of the cooperation state between the utility model and the needle threader when in use.

[0024] In the figure: 1. Plug-in tube; 2. Metal bellows; 3. Quick-release connector; 4. Lower shell; 5. Upper shell; 6. Inlet guide tube; 7. Reduction motor; 8. Forward and reverse switch; 9. Driving spindle; 10. Main pressure wheel; 11. Auxiliary pressure wheel; 12. Fixed bracket; 13. Adjusting screw; 14. Knob; 15. Driven shaft; 16. Bearing; 17. Movable connecting seat. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example:

[0027] like Figures 1 to 6As shown, a wire tube lead-in device includes a lower shell 4 and an upper shell 5. The upper shell 5 is fixedly arranged on the upper surface of the lower shell 4 at a position slightly to the left. A forward and reverse switch 8 is installed on the left side of the upper shell 5. A reduction motor 7 is arranged inside the upper shell 5, and the reduction motor 7 is electrically connected to the forward and reverse switch 8. A driving spindle 9 is vertically arranged on the left side of the lower shell 4, and the upper end of the driving spindle 9 is fixedly connected to the output end of the reduction motor 7. A main pressing wheel 10 is installed on the driving spindle 9, and an arc is provided on the annular surface of the main pressing wheel 10. shaped groove, a driven shaft 15 is arranged at intervals on the right side of the main pressing wheel 10, an auxiliary pressing wheel 11 is mounted on the driven shaft 15, and the specifications of the auxiliary pressing wheel 11 are the same as those of the main pressing wheel 10, a wire outlet is provided on the rear end face of the lower shell 4, and a wire inlet is provided on the front end face. This design solves the problem that the existing wire rope type manual threader needs manual threading and wire guiding operation, which has high labor intensity, is not convenient to operate, and has low wire guiding efficiency, while the electric threader has a large structure and is heavy and not convenient to carry and use.

[0028] A wire inlet guide 6 is fixedly connected to the wire inlet of the lower shell 4. The wire inlet guide 6 is arranged to facilitate the accurate introduction of the wire threader into the device, and plays a guiding and supporting role for the wire threader, ensuring that the wire threader can smoothly enter the interior of the device and avoid bending and jamming at the wire inlet. The front end of the wire inlet guide 6 is expanded, so that the wire threader can enter the wire inlet guide 6 more smoothly, reducing the friction with the wall of the wire inlet guide 6 and improving the convenience of operation.

[0029] A quick-release connector 3 is fixedly provided at the outlet of the lower shell 4, a metal bellows 2 is fixedly connected to the outside of the quick-release connector 3, and a plug-in tube 1 is fixedly provided at the left end of the metal bellows 2. The quick-release connector 3 is convenient for connecting and fixing the metal bellows 2, and it is convenient to remove the metal bellows 2 when the device is not in use, thereby reducing the overall length of the device and facilitating storage and carrying. The design of the plug-in tube 1 allows the user to connect the metal bellows 2 with the wire tube, and use the plug-in tube 1 and the wire tube to support the device as a whole. The metal bellows 2 has good flexibility and can adapt to various complex wire ducts and bending angles, thereby being able to change the incoming line direction of the device, facilitating lead-in operations from different positions and angles.

[0030] A U-shaped fixing bracket 12 is inserted into the right side of the lower housing 4, and the two ends of the left side of the fixing bracket 12 are sleeved on the driven shaft 15, and a bearing 16 is installed at the connection between the driven shaft 15 and the fixing bracket 12. The fixing bracket 12 plays a role of positioning and supporting the driven shaft 15, ensuring the stability of the auxiliary pressure feeding wheel 11 and preventing the auxiliary pressure feeding wheel 11 from loosening and deviating during the lead-in process.

[0031] The fixed bracket 12 is slidably connected to the lower housing 4, an adjusting screw 13 is provided through the right end surface of the fixed bracket 12, and the adjusting screw 13 is screwed and connected to the fixed bracket 12 by a thread, a knob 14 is fixed to the right end of the adjusting screw 13, and the left end is rotatably connected to the lower housing 4 by a movable connecting seat 17. This design can drive the fixed bracket 12 to move horizontally through the rotation of the adjusting screw 13, and then drive the auxiliary pressing wheel 11 to move through the fixed bracket 12, so that the position of the auxiliary pressing wheel 11 and the distance between it and the main pressing wheel 10 can be accurately adjusted, and the threading operation of threaders with different diameters can be performed, thereby improving the use range of the device.

[0032] The annular surfaces of the main pressure feeding wheel 10 and the auxiliary pressure feeding wheel 11 are both covered with a layer of rubber pads. The rubber pads can increase the friction between the main pressure feeding wheel 10 and the auxiliary pressure feeding wheel 11 and the surface of the threader, thereby ensuring the stability of the threader during the pressure feeding process, thereby ensuring that the threader is not easy to slide or fall off during the transmission process. At the same time, the rubber pads can reduce the wear and indentation of the main pressure feeding wheel 10 and the auxiliary pressure feeding wheel 11 on the surface of the threader, thereby reducing the wear on the threader during transmission.

[0033] The working principle of the wire conduit lead-in device is as follows: in actual use, the metal bellows 2 is first installed on the device through the quick-release connector 3, and then the plug-in tube 1 at the left end of the metal bellows 2 is inserted into the wire conduit, and the metal bellows 2 is bent and adjusted to make the device at an appropriate angle. The plug-in tube 1 and the metal bellows 2 can support the entire device by their own strength. Then the device is connected to an external power supply through an electric wire, and one end of the threader is inserted between the main pressure feeding wheel 10 and the auxiliary pressure feeding wheel 11 through the wire inlet guide tube 6, and the wire inlet guide tube 6 is allowed to enter the wire conduit along the metal bellows 2 and the plug-in tube 1. Then the adjusting screw 13 is turned by the knob 14 to drive the auxiliary pressure feeding wheel 11 to approach the main pressure feeding wheel 10, and the threader is clamped by the auxiliary pressure feeding wheel 11 and the main pressure feeding wheel 10. Then turn on the forward and reverse switch 8 to start the reduction motor 7, which drives the main pressure wheel 10 to rotate. The rotation of the main pressure wheel 10 cooperates with the auxiliary pressure wheel 11 to guide the threader to move into the wire tube, so that the threader passes into the wire tube until the threader passes out from the other end of the wire tube. Then the wire is fixedly connected to the threader, and the forward and reverse switch 8 is used to reverse the reduction motor 7, and the reduction motor 7 drives the main pressure wheel 10 to reverse, thereby driving the threader to move outward from the wire inlet guide tube 6, so that the wire connected to the threader passes out of the wire tube, thereby completing the threading and guiding operation of the wire tube.

[0034] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. An electric wire conduit lead-in device, comprising a lower housing (4) and an upper housing (5), characterized in that: The upper shell (5) is fixedly arranged on the left side of the upper surface of the lower shell (4); a forward and reverse switch (8) is installed on the left side of the upper shell (5); a reduction motor (7) is arranged inside the upper shell (5), and the reduction motor (7) is electrically connected to the forward and reverse switch (8); a driving spindle (9) is vertically arranged on the left side inside the lower shell (4), and the upper end of the driving spindle (9) is fixedly connected to the output end of the reduction motor (7); a main pressing wheel (10) is mounted on the driving spindle (9), and an arc-shaped groove is provided on the annular surface of the main pressing wheel (10); a driven shaft (15) is arranged on the right side of the main pressing wheel (10); a secondary pressing wheel (11) is mounted on the driven shaft (15), and the specifications of the secondary pressing wheel (11) are the same as those of the main pressing wheel (10); a wire outlet is provided on the rear end surface of the lower shell (4), and a wire inlet is provided on the front end surface.

2. The electric wire tube lead-in device according to claim 1, characterized in that: A wire inlet conduit (6) is fixedly connected to the wire inlet port of the lower shell (4), and a front end of the wire inlet conduit (6) is expanded.

3. The electric wire tube lead-in device according to claim 1, characterized in that: A quick-release connector (3) is fixedly provided at the wire outlet of the lower shell (4), a metal bellows (2) is fixedly connected to the outside of the quick-release connector (3), and a plug-in tube (1) is fixedly provided at the left end of the metal bellows (2).

4. The electric wire tube lead-in device according to claim 1, characterized in that: A U-shaped fixing bracket (12) is inserted into the right side of the lower housing (4), the two ends of the left side of the fixing bracket (12) are sleeved on the driven shaft (15), and a bearing (16) is installed at the connection between the driven shaft (15) and the fixing bracket (12).

5. The electric wire tube lead-in device according to claim 4, characterized in that: The fixed bracket (12) is slidably connected to the lower shell (4); an adjusting screw (13) is provided through the inside of the right end surface of the fixed bracket (12); the adjusting screw (13) is screwed together with the fixed bracket (12) via a thread; a knob (14) is fixedly provided at the right end of the adjusting screw (13); and the left end is rotatably connected to the lower shell (4) via a movable connecting seat (17).

6. The electric wire tube lead-in device according to claim 1, characterized in that: The annular surfaces of the main pressing wheel (10) and the auxiliary pressing wheel (11) are both covered with a layer of rubber pad.

Images