Threading device for building electrical equipment

Abstract

The utility model discloses a threading device for building electrical equipment, which comprises a bottom frame, a reel and a tension sensing cavity piece, the reel is fixed on the bottom frame, a spool barrel is rotatably mounted on the reel, a traction signal envelope is wound on the spool barrel, a wire end piece is mounted at the tail end of the traction signal envelope, and the tension sensing cavity piece is fixed on the bottom frame. A tension pull rod is fixedly installed on the wire end piece, the tail end of the tension pull rod extends into a sensing cavity of the tension sensing cavity piece and is fixedly provided with a pressing block, a pressure sensor is installed in the sensing cavity, a spiral pressing cylinder is fixedly installed on one side of the tension sensing cavity piece, a spinning sleeve is connected to the spiral pressing cylinder in a spinning mode, and a pressing block is fixedly installed on the spinning sleeve. A spiral barrel hole is formed in the barrel wall of the spiral pressing barrel, a bunch driving frame is installed on the bottom frame, and a lead screw is rotationally installed on the bunch driving frame. The device has the beneficial effects that the tension of the electric wire is controlled in the building threading process and is limited below a threshold value, and the situation that the electric wire is damaged due to the fact that the tension is too large in the take-up process is prevented.

Description

Technical Field

[0001] The utility model relates to the field of building electrical wire threading devices, in particular to a wire threading device used for building electrical wire threading. Background Art

[0002] Electrical wiring is required during the construction process, which is mostly achieved through pre-buried pipes. One end of the wire is threaded through the pipe. Existing threading devices mostly use a traction line to drive a traction head through the wire tube, and then clamp the wire and pull the wire into the pipe through the traction line. However, existing wire pulling and threading devices mostly achieve pulling through winding. However, due to the different lengths of the wires entering the pipe and the degree of the port clamping, the wires are often unevenly stressed during the uniform pulling process, and the wires are easily damaged when the pulling force is too large. Utility Model Content

[0003] The utility model aims to provide a wire threading device for building electrical equipment in order to realize tension control.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] A wire threading device for building electrical equipment comprises a base frame, a winding frame and a tension sensing cavity part, the winding frame is fixed to the base frame, a spool tube is rotatably installed on the spool tube, a traction signal package is wound on the spool tube, a wire end piece is installed at the end of the traction signal package, a tension rod is fixedly installed on the wire end piece, the end of the tension rod extends into a sensing cavity of the tension sensing cavity part and a pressure block is fixedly installed, a pressure sensor is installed in the sensing cavity, a spiral pressure cylinder is fixedly installed on one side of the tension sensing cavity part, a spinning sleeve is screwed on the spiral pressure cylinder, a spiral cylinder hole is opened on the cylinder wall of the spiral pressure cylinder, a wire bundle driving frame is installed on the base frame, a lead screw is rotatably installed on the wire bundle driving frame, a wire bundle frame is screwed on the lead screw, two wire bundle wheels are rotatably installed on the wire bundle frame, and the traction signal package is arranged between the two wire bundle wheels.

[0006] Furthermore, a wire entry hole is provided on the bobbin barrel, and a brush junction box is installed on the winding frame.

[0007] Furthermore, a controller and a winding motor are installed on the winding frame, and the winding motor is connected to one end of the spool barrel.

[0008] Furthermore, a wire adjustment motor is installed on the wire harness driving frame, and the wire adjustment motor is connected to one end of the lead screw.

[0009] Furthermore, a limit shaft is fixedly mounted on the cable harness driving frame, a limit sliding hole is provided on the cable harness frame, and the limit sliding hole is sleeved on the limit shaft.

[0010] Furthermore, the tension sensing cavity and the spinning sleeve are both provided with a wire pressing and anti-slip rubber ring.

[0011] The beneficial effect is that the wire threading device for building electrical appliances described in the utility model can control the wire tension during the building threading process to limit it below a threshold value, thereby preventing the wire from being damaged due to excessive tension during the wire reeling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a wire threading device for building electrical equipment described in the utility model;

[0013] Figure 2 It is a partial structural enlarged diagram of a wire threading device for building electrical equipment described in the utility model;

[0014] Figure 3 This is a schematic diagram of the installation of a spool tube of a wire threading device for building electrical appliances described in the utility model;

[0015] Figure 4 This is a schematic diagram of the installation of a cable tie rack for a cable threading device for building electrical equipment described in the utility model;

[0016] Figure 5 The utility model is a schematic diagram of the interior of a tension sensor cavity of a wire threading device for building electrical equipment.

[0017] The following are the descriptions of the reference numerals:

[0018] 1. Base frame; 2. Winding frame; 3. Bobbin tube; 4. Traction signal wire package; 5. Wire harness drive frame; 6. Pressure sensor; 7. Pressure block; 8. Pressure pull rod; 9. Wire end piece; 10. Tension sensor cavity; 11. Wire pressing anti-slip rubber ring; 12. Spiral barrel hole; 13. Spinning sleeve; 14. Spiral pressing barrel; 15. Lead screw; 16. Limiting shaft; 17. Wire harness wheel; 18. Wire harness frame; 19. Wire adjustment motor; 20. Controller; 21. Winding motor; 22. Stop wheel; 23. Brush junction box; 24. Wire entry hole. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] like Figure 1-Figure 5 As shown, the wire threading device for building electrical equipment described in the utility model is composed of a base frame 1, a winding frame 2 and a tension sensor cavity 10;

[0021] The winding frame 2 is fixed to the base frame 1, and a bobbin 3 is rotatably installed on the winding frame 2. A traction signal envelope 4 is wound on the bobbin 3. A wire end piece 9 is installed at the end of the traction signal envelope 4. A tension rod 8 is fixedly installed on the wire end piece 9. The end of the tension rod 8 extends into the sensing cavity of the tension sensing cavity 10 and is fixedly installed with a pressure block 7. A pressure sensor 6 is installed in the sensing cavity, and the pressure block 7 is pressed onto the pressure sensor 6 to sense the tension. The traction signal envelope 4 is formed by sheathing a traction line and a signal line together. The signal line is mainly used for signal transmission. A spiral pressure cylinder 14 is fixedly installed on one side of the tension sensing cavity 10.

[0022] A spinning sleeve 13 is screwed onto the spiral pressing cylinder 14, a spiral cylinder hole 12 is opened on the cylinder wall of the spiral pressing cylinder 14, and the spiral cylinder hole 12 is arranged on a side close to the tension sensor cavity 10. The wire enters through the spiral pressing cylinder 14 and extends out from the spiral cylinder hole 12, and is crimped by rotating the spinning sleeve 13;

[0023] A cable driving frame 5 is installed on the base frame 1, a lead screw 15 is rotatably installed on the cable driving frame 5, a cable frame 18 is screwed on the lead screw 15, two cable wheels 17 are rotatably installed on the cable frame 18, and the traction signal cable 4 is arranged between the two cable wheels 17 to facilitate limited winding thereof.

[0024] In this embodiment, a wire entry hole 24 is provided on the bobbin tube 3, and a brush terminal box 23 is installed on the winding frame 2. One end of the traction signal envelope 4 enters the interior of the bobbin tube 3 through the wire entry hole 24 and extends to the brush terminal box 23, which realizes rotational connection through the internal brush assembly. This is used here as a common electrical connection structure and will not be further described.

[0025] In this embodiment, a controller 20 and a winding motor 21 are installed on the winding frame 2, and the winding motor 21 is connected to one end of the spool barrel 3 to achieve rotation.

[0026] In this embodiment, a wire adjustment motor 19 is installed on the wire harness driving frame 5, and the wire adjustment motor 19 is connected to one end of the lead screw 15 to conveniently drive the lead screw 15 to rotate, thereby allowing the wire harness frame 18 to move back and forth to achieve wire winding and harnessing.

[0027] In this embodiment, a limit shaft 16 is fixedly mounted on the wire harness driving frame 5 , and a limit sliding hole is provided on the wire harness frame 18 , and the limit sliding hole is sleeved on the limit shaft 16 .

[0028] In this embodiment, the tension sensing cavity 10 and the spinning sleeve 13 are both installed with a wire pressing anti-slip rubber ring 6, which is convenient for pressing the wires that need to be threaded.

[0029] In the above structure, the rotary pressing cylinder 14 is placed into the outlet end of the wire tube, and the winding motor 21 is adjusted to release the wire so that it extends into the inlet end of the wire tube;

[0030] Insert the wire into the spiral pressing cylinder 14 and extend it through the spiral cylinder hole 12, rotate the spinning sleeve 13 so that it presses multiple wires, start the winding motor 21 to recover the traction signal envelope 4, and during the traction process, the pressure block 7 is pressed onto the pressure sensor 6 to try to feel the traction pressure so that it does not exceed a certain threshold value, thereby protecting the wires during the threading process. At the same time, since the screw 15 drives the cable tie frame 18 to move back and forth, the uniformity of the winding is guaranteed.

[0031] Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements shall fall within the scope of the present invention to be protected.

Claims

1. A wire threading device for building electrical systems, characterized in that: The invention comprises a base frame, a winding frame and a tension sensing cavity, wherein the winding frame is fixed to the base frame, a spool tube is rotatably mounted on the spool tube, a traction signal wire is wound on the spool tube, a wire end piece is mounted at the end of the traction signal wire, a tension rod is fixedly mounted on the wire end piece, the end of the tension rod extends into the sensing cavity of the tension sensing cavity and a pressure block is fixedly mounted thereon, a pressure sensor is mounted in the sensing cavity, a spiral pressing cylinder is fixedly mounted on one side of the tension sensing cavity, a spinning sleeve is screwed onto the spiral pressing cylinder, a spiral cylinder hole is opened on the cylinder wall of the spiral pressing cylinder, a wire beam driving frame is mounted on the base frame, a lead screw is rotatably mounted on the wire beam driving frame, a wire beam frame is screwed onto the lead screw, two wire beam wheels are rotatably mounted on the wire beam frame, and the traction signal wire is arranged between the two wire beam wheels.

2. A wire threading device for building electrical equipment according to claim 1, characterized in that: The bobbin is provided with a wire entry hole, and the winding frame is provided with a brush junction box.

3. A wire threading device for building electrical equipment according to claim 1, characterized in that: A controller and a winding motor are installed on the winding frame, and the winding motor is connected to one end of the bobbin.

4. A wire threading device for building electrical equipment according to claim 1, characterized in that: A wire adjustment motor is installed on the wire harness driving frame, and the wire adjustment motor is connected to one end of the lead screw.

5. A wire threading device for building electrical equipment according to claim 1, characterized in that: A limiting shaft is fixedly mounted on the cable harness driving frame, and a limiting sliding hole is provided on the cable harness frame, and the limiting sliding hole is sleeved on the limiting shaft.

6. A wire threading device for building electrical equipment according to claim 1, characterized in that: The tension sensing cavity and the spinning sleeve are both provided with a line pressing and anti-slip rubber ring.

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