CN215817342U

CN215817342U - Spiral self-winding pipe for protecting wiring harness

Info

Publication number: CN215817342U
Application number: CN202122215172.9U
Authority: CN
Inventors: 杨洋
Original assignee: Dalian Jingwei New Material Co ltd
Current assignee: Dalian Jingwei New Material Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-02-11
Anticipated expiration: 2031-09-14

Abstract

The utility model provides a pencil protection is with spiral from reelpipe, relates to the circuit protection technology field, warp and woof are alternately woven and are formed the braid over braid, the braid over braid encloses into the opening and has the inside hollow at least one deck spiral of coincidence coverage from rolling up tubular structure through thermoforming. The axial direction of the spiral self-rolling tube is in the warp direction. The warp is synthetic fiber, the weft is engineering plastic, the spiral self-coiling pipe is provided with an opening structure, the free end is not required to be sleeved, and the spiral self-coiling pipe can be conveniently sleeved on the outer side of a wire harness cable at any position to play the roles of wear resistance, flame retardance, moisture resistance and insulation protection. Meanwhile, the spiral structure can facilitate the wiring harness to be bent and wired greatly without opening or exposing internal cables, and a more ideal protection effect is achieved.

Description

Spiral self-winding pipe for protecting wiring harness

Technical Field

The utility model relates to the technical field of line protection, in particular to a spiral self-winding pipe for protecting a wiring harness.

Background

The conventional straight opening self-winding pipe in the traditional design cannot meet the wiring harness wiring requirement brought by the progress of the existing electronic product, for example, a new design form self-winding pipe needs to be found at a large-amplitude bending position so as to solve the problems of bending, wire exposure, opening and the like of the traditional self-winding pipe in the process of large-amplitude bending wiring.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a self-winding spiral pipe for protecting a wire harness, which has a hollow self-winding spiral pipe structure having an opening and a predetermined overlapping coverage, and solves the above-mentioned problems with the spiral structure.

The technical scheme is as follows:

a spiral self-winding pipe for protecting wiring harness comprises warp yarns and weft yarns.

The technical key points are as follows:

the warp yarns and the weft yarns are interwoven to form woven belts, and the woven belts are surrounded to form at least one layer of spiral self-rolling tubular structure which is provided with an opening and has overlapping coverage rate and hollow inside.

The axial direction of the spiral self-rolling tube is in the warp direction, and the braided belt is made into the spiral self-rolling tube through thermoforming.

Preferably, the warp yarns are synthetic fibers, either single or multiple ply.

Preferably, the denier of a single fiber of the warp yarn is from 300D to 5000D.

Preferably, the weft yarn is engineering plastic monofilament, and is two monofilaments or four monofilaments.

Preferably, the monofilament diameter of the weft yarn is 0.15mm-0.35 mm.

The advantages are that:

the utility model provides a spiral self-winding pipe for protecting a wiring harness. The spiral is from reelpipe has open structure, need not the free end and wears the cover, can be convenient for the cover play wear-resisting, fire-retardant, dampproofing and insulating effect of protecting in the outside of the pencil cable of optional position. Meanwhile, the spiral structure can facilitate the wiring harness to be bent and wired greatly without opening or exposing internal cables, and a more ideal protection effect is achieved.

Drawings

FIG. 1 is a schematic view showing the spiral structure of the spiral self-winding pipe of the present invention.

FIG. 2 is a schematic view of the double-layer helical self-coiling pipe of the present invention.

Fig. 3 is a cross-sectional view a-a of fig. 2 of the present invention.

FIG. 4 is a schematic view of a single-layer helical self-coiling pipe according to the present invention.

Fig. 5 is a cross-sectional view B-B of fig. 4 in accordance with the present invention.

Warp yarn 1, weft yarn 2.

Detailed Description

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, fig. 1 is a schematic diagram of a spiral structure of a spiral self-coiling pipe according to the present invention. FIG. 2 is a schematic view of the double-layer helical self-coiling pipe of the present invention. Fig. 3 is a cross-sectional view a-a of fig. 2 of the present invention. FIG. 4 is a schematic view of a single-layer helical self-coiling pipe according to the present invention. Fig. 5 is a cross-sectional view B-B of fig. 4 in accordance with the present invention.

In the implementation process, as shown in fig. 1-5, the spiral self-rolling pipe for harness protection comprises warp yarns 1 and weft yarns 2, which are crossed and woven to form a woven belt, and the woven belt is thermally formed to surround an opening and form a spiral self-rolling pipe structure with a certain overlapping coverage rate and a hollow interior.

The overlapped two-layer woven closed hollow belt formed by weaving the warp yarns 1 and the weft yarns 2 in a crossed mode can be encircled into a double-layer spiral self-winding pipe with four layers of sections through heat setting.

The single-layer woven belt formed by weaving the warp yarns 1 and the weft yarns 2 in a crossed mode can be enclosed into a single-layer spiral self-winding pipe with two layers of sections through heat setting.

Warp yarn 1 is a synthetic fiber in the form of one of a plurality of plies or a single strand.

The denier of a single fiber of the warp yarn 1 is 300D-5000D.

Specifically, it may be 300D, 2000D or 5000D.

The weft yarn 2 is made of engineering plastic monofilament, or one of two monofilaments or four monofilaments.

The monofilament diameter of the weft yarn 2 is 0.15mm-0.35 mm.

Specifically, it may be 0.15mm, 0.2mm or 0.35 mm.

The thickness of the double-layer spiral self-coiling pipe is 1.7 mm-2.1 mm.

Specifically, it may be 1.7 mm, 2mm or 2.1 mm.

The thickness of the single-layer spiral self-coiling pipe is 0.7 mm-1.0 mm.

Specifically, it may be 0.7 mm, 0.8mm or 1.0 mm.

The working principle of the utility model is as follows:

the warp 1 can be made of one or the mixture of two of polyester fiber, nylon fiber, aramid fiber, polyimide fiber, glass fiber or carbon fiber, and the warp 1 is formed by multiple plying or single strand, and the twisting process can be selected, and the twist degree is controlled to be 50-220T/m.

The weft yarns 2 can be made of one of PET monofilament (polyethylene terephthalate), PA monofilament (nylon), PPS monofilament (polyphenylene sulfide) or PEEK monofilament (polyether ether ketone).

The yarn 1 and the weft yarn 2 are woven into two layers of woven belts through one of a high-speed ribbon loom, a flat-head ribbon loom or a knitting machine, and the two layers of woven belts are self-coiled into a double-layer spiral self-coiling pipe through a heating spiral forming machine. Or the yarn 1 and the weft yarn 2 are woven into a single-layer woven belt, and the single-layer woven belt is formed into a single-layer spiral self-winding pipe through self-winding of a heating spiral forming machine. The prepared spiral self-reelpipe braided sleeve with 40% -50% of coincidence rate is sleeved on the outer side of a wire harness or a pipeline to play a role in protection. The overlapping ratio may be specifically 40%, 45%, or 50%.

Experiment and analysis:

and (3) carrying out an impact resistance test on the double-layer spiral self-coiling pipe:

and (3) impacting the double-layer spiral self-coiling pipe by taking a 10kg heavy hammer from a position with the height of 100cm, and after the experiment is finished, performing appearance inspection and test: the wire harness is not damaged, the internal conductor is not damaged, and the short circuit phenomenon is avoided. Therefore, the double-layer spiral self-winding pipe has good impact-resistant protection effect.

The utility model provides a spiral self-coiling pipe for protecting a wire harness, which is provided with an opening structure, does not need to be sleeved by a free end, and can be conveniently sleeved on the outer side of a wire harness cable at any position to play the roles of wear resistance, flame retardance, moisture resistance and insulation protection. Meanwhile, the spiral structure can facilitate the wiring harness to be bent and wired greatly without opening or exposing internal cables, and a more ideal protection effect is achieved. The protective sheath is easy to be installed on wire harnesses and fluid pipelines in the fields of road vehicles, engineering machinery, aerospace, military industry and the like, and is convenient to disassemble and maintain in the later period. The double-layer spiral self-winding pipe with the double-layer structure has the characteristics of flexibility, high wear resistance, high impact resistance and the like, provides safer operation guarantee for a protected body, and is particularly suitable for wire harness protection of a new energy electric automobile.

Claims

1. The utility model provides a pencil protection is with spiral from reelpipe, includes warp (1) and woof (2), its characterized in that: the warp (1) and the weft (2) are crossed and woven to form a weaving belt,

the braided belt is enclosed into at least one layer of spiral self-rolling tubular structure with an opening and overlapping coverage rate and hollow interior.

2. The self-spiral pipe for protecting a wire harness according to claim 1, wherein:

3. The self-spiral pipe for protecting a wire harness according to claim 1, wherein: the spiral self-rolling tubular structure is two-layered.

4. The self-spiral pipe for protecting a wire harness according to claim 1, wherein: the warp yarns (1) are synthetic fibers and are single strands or multiple plied strands.

5. The self-spiral pipe for protecting a wire harness as claimed in claim 4, wherein: the single fiber denier of the warp yarn (1) is 300D-5000D.

6. The self-spiral pipe for protecting a wire harness according to claim 1, wherein: the weft (2) is an engineering plastic monofilament, and is two monofilaments or four monofilaments.

7. The self-spiral pipe for protecting a wire harness as claimed in claim 6, wherein: the monofilament diameter of the weft (2) is 0.15mm-0.35 mm.

8. The self-spiral pipe for protecting a wire harness according to claim 1, wherein: when the spiral self-coiling pipe is a single layer, the thickness of the spiral self-coiling pipe is 0.7 mm-1.0 mm.

9. The self-spiral pipe for protecting a wire harness as claimed in claim 3, wherein: when the spiral self-coiling pipe is double-layer, the thickness of the spiral self-coiling pipe is 1.7 mm-2.1 mm.

10. The self-spiral pipe for protecting a wire harness according to claim 1, wherein: the overlapping rate of the spiral self-coiling pipe is 40-50%.