CN215770597U

CN215770597U - Novel special high-temperature-resistant control cable

Info

Publication number: CN215770597U
Application number: CN202121622474.1U
Authority: CN
Inventors: 李仲宏; 徐磊; 席素玲; 曾天良; 胡朝孙; 张怀广
Original assignee: Yangzhou Huacheng Cable Co Ltd
Current assignee: Yangzhou Huacheng Cable Co Ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2022-02-08
Anticipated expiration: 2031-07-16

Abstract

The utility model discloses a novel special high-temperature-resistant control cable in the technical field of control cables, which comprises cable cores, wherein four groups of cable cores are arranged, the four groups of cable cores are arranged in a rectangular array, shielding layers are attached to the outer walls of the cable cores, the same wrapping layer is attached to the outer walls of the four groups of shielding layers, an oxygen-isolating layer is filled between the shielding layers and the wrapping layer, a flame-retardant layer is attached to the outer wall of the wrapping layer, a high-temperature-resistant layer is attached to the outer wall of the flame-retardant layer, a waterproof layer is attached to the outer wall of the high-temperature-resistant layer, an armor layer is attached to the outer wall of the waterproof layer, a buffer layer is attached to the outer wall of the armor layer, mounting grooves which are arranged in an annular array are uniformly formed in the inner cavity of the buffer layer, an elastic telescopic rod is mounted in the inner cavity of the mounting grooves, and a spring is sleeved on the outer wall of the elastic telescopic rod, so that the impact weakened by external force can be better, and the tensile and pressure resistance of the control cable can be improved, thereby ensuring normal use of the control cable.

Description

Novel special high-temperature-resistant control cable

Technical Field

The utility model relates to the technical field of control cables, in particular to a novel special high-temperature-resistant control cable.

Background

With the progress of society and the development of science and technology, the application of the cable is more and more extensive. The control cable is a common cable, and is a polyvinyl chloride insulation and polyvinyl chloride sheath control cable suitable for industrial and mining enterprises, energy traffic departments, and occasions such as control and protection lines with the alternating current rated voltage of below 450/750 volts. However, the existing control cable has the problem that the tensile and pressure resistance is poor, the control cable is easy to deform when being extruded by external force, an inner conductor is easy to damage, the phenomenon that the control cable is fractured can be caused through long-time bending and moving, and the normal use of the control cable is influenced, so that a novel special high-temperature-resistant control cable is provided

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel special high-temperature-resistant control cable to solve the problem that the existing control cable in the background technology is poor in tensile and compressive capacity.

In order to achieve the purpose, the utility model provides the following technical scheme: novel special type high temperature resistant control cable, including the cable core, the total four groups of quantity of cable core, four groups the cable core is the rectangular array and arranges, the outer wall laminating of cable core is provided with the shielding layer, four groups the outer wall laminating of shielding layer is provided with same cladding layer, the shielding layer with it has the oxygen barrier to fill between the cladding layer, the outer wall laminating of cladding layer is provided with fire-retardant layer, fire-retardant layer's outer wall laminating is provided with high temperature resistant layer, high temperature resistant layer's outer wall laminating is provided with the waterproof layer, the outer wall laminating of waterproof layer is provided with the armor, the outer wall laminating of armor is provided with the buffer layer, the mounting groove that is the annular array and arranges is evenly seted up to the inner chamber of buffer layer, the elasticity telescopic link is installed to the inner chamber of mounting groove, the outer wall of elasticity telescopic link cup joints and is provided with the spring.

Preferably, the shielding layer comprises an inner shielding layer, an insulating layer and an outer shielding layer from inside to outside in sequence, the inner shielding layer is a metal shielding layer, the insulating layer is a cross-linked polyethylene insulating layer, and the outer shielding layer is a semiconductor shielding layer.

Preferably, the flame-retardant layer is a halogen-free low-smoke flame-retardant polyolefin material layer.

Preferably, the high-temperature resistant layer is a fire-resistant mica tape wrapping layer.

Preferably, the waterproof layer is a semiconductive expansion waterproof layer.

Preferably, the outer wall of the buffer layer is provided with an insulating wear-resistant outer layer in a fitting manner.

Compared with the prior art, the utility model has the beneficial effects that:

1. the control cable is provided with the buffer layer and the armor layer, when the buffer layer and the armor layer are extruded by external force, the buffer layer is extruded, the elastic telescopic rod and the spring which are installed in the installation groove are compressed, a good buffer effect can be achieved, impact of the external force can be weakened better, the tensile and compression resistance of the control cable is improved, the armor layer resists mechanical external force, the tensile and compression resistance of the control cable is further improved, and therefore normal use of the control cable is guaranteed.

2. The semi-conductive expansion water-blocking control cable is provided with the waterproof layer and the oxygen-isolating layer, the semi-conductive expansion water-blocking layer plays a water-blocking role, so that the control cable has a good water-blocking effect, the control cable is prevented from being damaged by water, and the oxygen-isolating layer plays a role in isolating oxygen, so that the control cable is not easy to corrode.

Drawings

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

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 3 is an enlarged schematic view of B in fig. 1.

In the figure: 1. a cable core; 2. a shielding layer; 201. an inner shield layer; 202. an insulating layer; 203. an outer shield layer; 3. an oxygen barrier layer; 4. coating a layer; 5. a flame retardant layer; 6. a high temperature resistant layer; 7. a waterproof layer; 8. an armor layer; 9. a buffer layer; 10. mounting grooves; 11. an elastic telescopic rod; 12. a spring; 13. an insulating wear-resistant outer layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

referring to fig. 1 and fig. 2, the present invention provides a technical solution: novel special type high temperature resistant control cable, including cable core 1, the total four groups of quantity of cable core 1, four group's cable cores 1 are the rectangular array and arrange, the outer wall laminating of cable core 1 is provided with shielding layer 2, shielding layer 2 mainly plays anti external electromagnetic interference, prevent in the use because self produced electromagnetic field to the interference of surrounding environment and lead to the fault current effect, shielding layer 2 is by interior shield layer 201 to including in proper order outside to, insulating layer 202 and outer shield layer 203, inner shield layer 201 is the metallic shield layer, insulating layer 202 is the crosslinked polyethylene insulating layer, can play good insulating effect, outer shield layer 203 is the semiconductor shield layer, eliminate the air gap between insulating layer 202 and the inner shield layer 201 through outer shield layer 203.

In this embodiment, referring to fig. 1, the same coating layer 4 is attached to the outer walls of the four shielding layers 2, and the coating tightness between the shielding layers 2 is increased by the coating layer 4.

In this embodiment, referring to fig. 1, an oxygen isolation layer 3 is filled between the shielding layer 2 and the wrapping layer 4, and the oxygen isolation layer 3 plays a role of isolating oxygen, so that the control cable is not prone to corrosion.

In this embodiment, please refer to fig. 1, the outer wall of the wrapping layer 4 is attached to a flame retardant layer 5, the flame retardant layer 5 is a halogen-free low-smoke flame retardant polyolefin material layer, the halogen-free low-smoke flame retardant polyolefin material layer plays a role in delaying fire, toxic smoke and high-concentration smoke are not easily generated, the outer wall of the flame retardant layer 5 is attached to a high temperature resistant layer 6, the high temperature resistant layer 6 is a fire resistant mica tape wrapping layer, the high temperature resistance of the control cable is improved by the fire resistant mica tape wrapping layer, and the control cable is not easily subjected to spontaneous combustion.

In this embodiment, referring to fig. 1, a waterproof layer 7 is attached to an outer wall of the high temperature resistant layer 6, the waterproof layer 7 is a semiconductive expansion water-blocking layer, and the semiconductive expansion water-blocking layer plays a role in blocking water, so that the control cable has a good water-blocking effect, and the control cable is prevented from being damaged by water.

In this embodiment, please refer to fig. 1 and fig. 3, the outer wall laminating of waterproof layer 7 is provided with armor 8, the outer wall laminating of armor 8 is provided with buffer layer 9, the mounting groove 10 that is the annular array and arranges is evenly seted up to buffer layer 9's inner chamber, elastic telescopic rod 11 is installed to the inner chamber of mounting groove 10, elastic telescopic rod 11's outer wall cup joints and is provided with spring 12, when receiving external force extrusion, can extrude buffer layer 9, and then compress elastic telescopic rod 11 and spring 12 to the installation in the mounting groove 10, can play good buffering effect, thereby can be better weaken the impact of external force, improve the ability of control cable tensile resistance to compression, resist mechanical external force through armor 8, further improve the ability of control cable tensile resistance to compression, thereby guarantee control cable's normal use.

Example 2:

referring to fig. 1, this embodiment is different from the first embodiment in that: the outer wall laminating of buffer layer 9 is provided with insulating wear-resisting skin 13, has improved control cable's wear resistance through insulating wear-resisting skin 13, and then has prolonged control cable's life.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Novel special type high temperature resistant control cable, including cable core (1), its characterized in that: the cable comprises four cable cores (1), wherein the cable cores (1) are arranged in a rectangular array, a shielding layer (2) is attached to the outer wall of each cable core (1), the shielding layer (2) is attached to the outer wall of each cable core, a same wrapping layer (4) is attached to the outer wall of each shielding layer (2), an oxygen-insulating layer (3) is filled between each shielding layer (2) and each wrapping layer (4), a flame-retardant layer (5) is attached to the outer wall of each wrapping layer (4), a high-temperature-resistant layer (6) is attached to the outer wall of each flame-retardant layer (5), a waterproof layer (7) is attached to the outer wall of each waterproof layer (6), an armor layer (8) is attached to the outer wall of each armor layer (8), a buffer layer (9) is attached to the outer wall of each armor layer, and installation grooves (10) which are arranged in an annular array are uniformly formed in the inner cavity of each buffer layer (9), the inner cavity of the mounting groove (10) is provided with an elastic telescopic rod (11), and the outer wall of the elastic telescopic rod (11) is sleeved with a spring (12).

2. The novel special high temperature resistant control cable of claim 1, characterized in that: the shielding layer (2) comprises an inner shielding layer (201), an insulating layer (202) and an outer shielding layer (203) from inside to outside in sequence, the inner shielding layer (201) is a metal shielding layer, the insulating layer (202) is a cross-linked polyethylene insulating layer, and the outer shielding layer (203) is a semiconductor shielding layer.

3. The novel special high temperature resistant control cable of claim 1, characterized in that: the flame-retardant layer (5) is a halogen-free low-smoke flame-retardant polyolefin material layer.

4. The novel special high temperature resistant control cable of claim 1, characterized in that: the high temperature resistant layer (6) is a fire-resistant mica tape wrapping layer.

5. The novel special high temperature resistant control cable of claim 1, characterized in that: the waterproof layer (7) is a semi-conductive expansion waterproof layer.

6. The novel special high temperature resistant control cable of claim 1, characterized in that: the outer wall of buffer layer (9) laminating is provided with insulating wear-resisting skin (13).