CN111477388B

CN111477388B - Composite flexible cable

Info

Publication number: CN111477388B
Application number: CN202010318085.3A
Authority: CN
Inventors: 宋兴彬
Original assignee: 陈连庆
Current assignee: SHENYANG CHANGSHUN CABLE MANUFACTURING Co.,Ltd.
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2021-09-14
Anticipated expiration: 2040-04-21
Also published as: CN111477388A

Abstract

The invention discloses a composite flexible cable, which comprises an elastic base pipe, wherein a sealing channel is arranged in the middle of the base pipe, more than two clamping grooves are formed in the outer wall surface of the base pipe in a circle surrounding the base pipe, an elastic outer protection layer is arranged in each clamping groove, one end of a supporting part is inserted into each clamping groove for fixing, the outer protection part is bent relative to the supporting part and serves as the outermost protection layer of the cable, cable cores are fixedly arranged on the inner side surfaces of arc-shaped wrapping parts, supporting air bags are filled in the filling cavities, and after the supporting air bags are damaged, the elastic outer protection layers are wound outside the cable cores by taking the arc-shaped wrapping parts as starting points. The cable has good elastic buffering capacity after being sheared and extruded, and can damage the supporting air bag after being sheared to the limit, and the elastic outer protection layer used for buffering and supporting originally is wrapped outside the cable core wire to reinforce the external strength of the cable core wire, so that secondary protection is realized.

Description

Composite flexible cable

Technical Field

The invention relates to the field of cables, in particular to a composite flexible cable.

Background

The cable is used for signal and power transmission, the cable is widely distributed in the ground, most of the cable is distributed in the ground, and the cable distributed in the ground cannot be seen from the outside, so the cable is easy to be damaged due to cutting of external equipment, and therefore the buried cable needs better buffering capacity and higher strength. Consequently need lay buffer structure and additional strengthening in that the cable is inside, in case the shearing force is too big, buffer structure does not generally have any effect, directly relies on additional strengthening to resist the shearing, but additional strengthening need not use yet many times, and general external force passes through buffer structure and can cushion the support, so neither will set up additional strengthening and set up buffer structure again, leads to the cable inner structure complicated, and the security can not be ensured yet.

Disclosure of Invention

The invention aims to solve the technical problem of providing a composite flexible cable which takes an elastic outer protective layer and a supporting air bag as buffering supports, has very good shock resistance, can be wrapped outside a cable core by the elastic outer protective layer after being subjected to extreme pressure, and is taken as the outer protection of the cable core to strengthen the overall strength of the cable core.

The invention is realized by the following technical scheme: the utility model provides a compound flexible cable, has a sealed passageway including one has elastic basic pipe, and the centre of basic pipe has, and the outer wall of basic pipe is gone up to encircle basic pipe round and has been seted up two or more draw-in grooves, all packs into an elasticity outer protective layer in every draw-in groove, and elasticity outer protective layer includes an outer protection portion, supporting part and arc parcel portion, supporting part one end is inserted fixedly in the draw-in groove, and outer protection portion is bent and is regarded as the outside protective layer of cable to the supporting part, the equal fixed mounting of medial surface of arc parcel portion has the cable conductor, all forms a packing chamber between the adjacent elasticity outer protective layer, fills the intracavity and all fills and set up a support gasbag, and when supporting the damaged back of gasbag, the outside that the elasticity outer protective layer coiled the cable conductor as the starting point with arc parcel portion.

As a preferred technical scheme, each elastic outer protection layer is in a 7 shape.

As a preferable technical scheme, an inflation cavity is formed in the supporting air bag, air is filled in the inflation cavity, the shape of the supporting air bag is the same as the inner shape of the filling cavity, and the outer shape of the elastic outer protection layer is limited by the supporting air bag, so that the elastic outer protection layer is in a 7 shape all the time.

As a preferred technical scheme, the elastic outer protection layers are all made of elastic rubber materials and are in a rolling state in a natural state.

As the preferred technical scheme, the cable core wire and the arc-shaped wrapping part are fixed by glue.

As a preferred technical scheme, more than one positioning hole is formed in the outer side face of the arc wrapping portion, a positioning rod is arranged on the supporting portion opposite to the positioning hole, and the positioning rod is inserted into the positioning hole.

According to the preferable technical scheme, the contact surface of the supporting air bag and the outer wall surface of the base pipe is fixed by glue, and the rest surface of the supporting air bag is not fixed in contact with the elastic outer protection layer and the cable core wire.

As a preferable technical scheme, the base pipe is made of an elastic rubber pipe material.

The invention has the beneficial effects that: the supporting air bag and the elastic outer protection layer are used as elastic supports of the cable core, so that the elastic buffering force can be greatly increased, the external impact can be resisted, and the cable core is greatly protected;

after bearing too big power because the cable conductor, support the gasbag and be destroyed, because lose the support spacing that supports the gasbag, the elasticity outer protective layer resumes deformation and convolutes in the outside of cable conductor, has strengthened the thickness of cable conductor greatly, increases the intensity of cable conductor, therefore the elasticity outer protective layer can regard as elastic support, can regard as again and strengthen the protection piece, has simplified holistic structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a diagram showing the state of use of the present invention after it has been cut.

Detailed Description

As shown in fig. 1, the composite flexible cable comprises a base pipe 4 with elasticity, a sealing channel 41 is arranged in the middle of the base pipe 4, more than two clamping grooves are formed in the outer wall surface of the base pipe 4 in a circle around the base pipe 4, an elastic outer protection layer is filled in each clamping groove, the elastic outer protection layer 100 comprises an outer protection part 1, a supporting part 9 and an arc wrapping part 2, one end of the supporting part 9 is inserted into the clamping grooves to be fixed, the outer protection part 1 is bent relative to the supporting part 9 and serves as an outermost protection layer of the cable, a cable core wire 3 is fixedly installed on the inner side surface of the arc wrapping part 2, a filling cavity is formed between the adjacent elastic outer protection layers, a supporting airbag 6 is filled in the filling cavity, and after the supporting airbag 6 is damaged, the elastic outer protection layer is wound outside the cable core wire 3 by taking the arc wrapping part 2 as a starting point.

In this embodiment, every elasticity outer protective layer all is "7" font, utilizes the combination of elasticity outer protective layer to support gasbag 6, plays an elastic buffer's purpose, when the cable outside pressurized, can utilize elasticity outer protective layer and support the gasbag as the buffering, prevents to cut the cable conductor, has unusual elastic buffer power, increases the security.

In this embodiment, support 6 inside and have an inflation chamber 7, inflation chamber 7 intussuseption is full of gas, the shape that supports 6 of gasbag is the same with the inside shape of filling the chamber, restrict the external form of elasticity outer protective layer through supporting 6 of gasbag, make elasticity outer protective layer be "7" font all the time, in case support 6 damaged of gasbag, elasticity outer protective layer just can lose the holding power, and then use arc parcel portion 2 as the outside of starting point parcel at cable conductor 3, because elasticity outer protective layer length is long, consequently, can wind several rings of cable conductor, as shown in fig. 2, promote the outside thickness of cable conductor 3 greatly, promote cable conductor intensity, realize emergency safety protection.

In the embodiment, the elastic outer protective layer is made of elastic rubber materials and is in a rolling state in a natural state, and the cable core 3 and the arc-shaped wrapping part 2 are fixed by gluing; the contact surface of the supporting air bag 6 and the outer wall surface of the base pipe 4 is fixed by glue, and the contact between the rest surface of the supporting air bag 6 and the elastic outer protective layer and the cable core wire is not fixed. When the supporting air bag 6 is damaged, the supporting air bag 6 is quickly restored to deform and moves to the glue fixing position, and the rolling of the elastic outer protection layer is not affected.

In this embodiment, more than one locating hole has all been seted up to the lateral surface of arc parcel portion 2, just is provided with locating lever 11 on the supporting part to the locating hole, and locating lever 11 inserts in the locating hole, and after receiving the shearing of transition, locating lever 11 and locating hole separation for the outer protective layer of elasticity can resume deformation, when normal use, supports the gasbag through the locating lever cooperation, helps the design of the outer protective layer of elasticity.

In this embodiment, basic pipe 4 adopts elasticity rubber tube material to make, also can set up some important wires 8 in the inside sealed passageway of basic pipe 4, sets up some less important wires in arc parcel portion 2, when elasticity outer protective layer parcel is outside at the cable conductor, can regard as basic pipe 4's outside protection, further promotes the security of main wire.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. A composite flexible cable, characterized by: the cable comprises an elastic base pipe, a sealing channel is arranged in the middle of the base pipe, more than two clamping grooves are formed in the outer wall surface of the base pipe in a circle around the base pipe, an elastic outer protection layer is arranged in each clamping groove and comprises an outer protection part, a supporting part and an arc wrapping part, one end of the supporting part is inserted into the clamping grooves for fixing, the outer protection part is bent relative to the supporting part and serves as an outermost protection layer of a cable, cable cores are fixedly arranged on the inner side surfaces of the arc wrapping parts, a filling cavity is formed between every two adjacent elastic outer protection layers, a supporting air bag is filled in the filling cavity, and after the supporting air bag is damaged, the elastic outer protection layers are wound outside the cable cores by taking the arc wrapping parts as starting points;

every elasticity outer protective layer all is "7" font, support gasbag inside has an inflation chamber, and the inflation chamber intussuseption is full of gas, and the shape of supporting the gasbag is the same with the inside shape of filling the chamber, restricts the outside shape of elasticity outer protective layer through supporting the gasbag for elasticity outer protective layer is "7" font all the time.

2. The composite flexible cable of claim 1, wherein: the elastic outer protection layer is made of elastic rubber materials and is in a rolling state in a natural state.

3. The composite flexible cable of claim 1, wherein: and glue is applied between the cable core and the arc-shaped wrapping part for fixation.

4. The composite flexible cable of claim 1, wherein: more than one locating hole is all seted up to the lateral surface of arc parcel portion, is provided with the locating lever on the supporting part just to the locating hole, and the locating lever inserts in the locating hole.

5. The composite flexible cable of claim 1, wherein: the contact surface of the supporting air bag and the outer wall surface of the base pipe is fixed by glue, and the contact between the rest surface of the supporting air bag and the elastic outer protective layer and the cable core wire is not fixed.

6. The composite flexible cable of claim 1, wherein: the base pipe is made of elastic rubber pipe materials.