Large-scale spiral coil cable

Abstract

The utility model discloses a large-scale spiral coil cable, which comprises a spring and a cable leaning against the spring, a shaping sleeve is sleeved outside the spring and the cable, a polytetrafluoroethylene belt is wound on the outer surface of the shaping sleeve, and a thermoplastic pipe is sleeved outside the shaping sleeve. According to the large-scale spiral wire coiling cable disclosed by the utility model, the reliability of the cable recovery posture is ensured by utilizing the large-inner-diameter spiral spring. The layout of the cable and the spring is optimized, and the shaping sleeve is added, so that the posture stability of the coiled cable in the working process is ensured.

Description

Technical Field

[0001] The utility model belongs to the field of large and heavy cables, and particularly relates to a large spiral coiled cable in this field, which can meet the requirements of deployment and retraction of large and heavy cables. Background Art

[0002] Ordinary cables on the domestic market are mainly manufactured by die molding. For large follow-up cables currently used in China with high helix degree, large wire diameter, heavy weight, and requiring synchronous movement with electronic equipment, the main problems in the application process are as follows: the wire diameter of the internal spiral coil spring is too small, so that during the cable recovery process, each cable is stressed and unevenly; due to the uneven stress of the coiled cable during the recovery process, the diameters of each coil of the cable from top to bottom are not the same, the appearance is poor, and the cable is prone to fatigue fracture. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a large spiral coiled cable that is not affected by its own weight during the deployment and retraction process, has uniform deformation, and good appearance effect.

[0004] The utility model adopts the following technical scheme:

[0005] A large spiral coiled cable, the improvement lies in: it includes a spring and a cable leaning on the spring, a shaping sleeve is sleeved outside the spring and the cable, a polytetrafluoroethylene tape is wound on the outer surface of the shaping sleeve, and a heat shrinkable tube is sleeved outside the shaping sleeve.

[0006] Further, the diameter of the spring wire is 6mm.

[0007] Further, there are four cables, and the four cables surround the spring.

[0008] Further, the spring is used as a ground wire.

[0009] The beneficial effect of the utility model is:

[0010] The large spiral coiled cable disclosed by the utility model uses a large inner diameter spiral spring to ensure the reliability of the cable recovery posture. By optimizing the layout of the cable and the spring and adding a shaping sleeve, the posture stability during the working process of the coiled cable is ensured; by using a polytetrafluoroethylene tape, the cable manufacturing efficiency is improved; by performing special surface treatment on the spring and using it as part of the ground wire, the weight and cost of the coiled cable are reduced; by using a heat shrinkable tube with high heat shrinkage rate and good high and low temperature resistance performance, while ensuring the appearance, the reliability of use in harsh environments is improved. This kind of cable can be applied to the lifting field with large wire diameter (more than 35 cm in diameter) and high deployment height (up to more than 30 meters). The coiled spring cable has good structural stability, long service life, and good popularization. Description of the Drawings

[0011] Figure 1 is a schematic external view of the cable disclosed by the present utility model;

[0012] Figure 2 is a schematic cross-sectional view of the cable disclosed by the present utility model;

[0013] Figure 3 is a schematic external view of the spring in the cable disclosed by the present utility model.

[0014] Reference Numerals:

[0015] 1 - First Cable, 2 - Shaping Sleeve, 3 - Heat Shrinkable Tube, 4 - Second Cable, 5 - Third Cable, 6 - Spring, 7 - Polytetrafluoroethylene Tape, 8 - Fourth Cable. Detailed Description of the Preferred Embodiment

[0016] In order to make the objectives, technical solutions and advantages of the present utility model more comprehensible, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are merely used to explain the present utility model and are not intended to limit the present utility model.

[0017] Embodiment 1 discloses a large spiral coiled cable with good elongation, high reliability, good forming processability, convenient installation and strong versatility. It has been verified by tests and can be applied to products.

[0018] As shown in Figure 1 , Figure 2, it includes a spring 6 and a cable resting on the spring. A shaping sleeve 2 is sleeved outside the spring and the cable, a polytetrafluoroethylene tape 7 is wound around the outer surface of the shaping sleeve, and a heat shrinkable tube 3 is sleeved outside the shaping sleeve. The spring and the cable are positioned through the shaping sleeve to ensure attitude stability; the polytetrafluoroethylene tape is wound around the outer surface of the shaping sleeve, reducing the friction between the shaping sleeve and the heat shrinkable tube and improving the cable manufacturing efficiency; a heat shrinkable tube is sleeved outside the shaping sleeve to protect the cable while heat shrink molding and improve weather resistance.

[0019] In this embodiment, there are four cables, namely the first cable 1, the second cable 4, the third cable 5 and the fourth cable 8. The four cables are arranged around the spring. As shown in Figure 3 , Figure, the spring for maintaining the attitude is made of spring wire with a diameter of 6 mm, and through surface treatment, the spring is used as a ground wire.

[0020] The principle of the large spiral coiled cable disclosed in this embodiment is as follows: The spring and each cable pass through the shaping sleeve for positioning together, and the basic shape is maintained by winding PTFE tapes layer by layer. Finally, heat shrinkable tubing is used for heat shrinkage shaping. By taking advantage of the shape and elasticity of the large inner diameter spiral spring, the influence of the self-weight of each cable during the recycling process is overcome, ensuring uniform deformation of the cable and good appearance effect.

Claims

1. A large spiral coiled cable, characterized in that: It includes a spring and a cable resting on the spring. A shaping sleeve is sleeved outside the spring and the cable, a polytetrafluoroethylene tape is wound around the outer surface of the shaping sleeve, and a heat shrinkable tube is sleeved outside the shaping sleeve.

2. The large spiral coiled cable according to claim 1, characterized in that: The diameter of the spring wire is 6 mm.

3. The large spiral coiled cable according to claim 1, characterized in that: There are four cables, and the four cables are arranged around the spring.

4. The large spiral coiled cable according to claim 1, characterized in that: The spring is used as a ground wire.

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