CN215815348U

CN215815348U - Based on insulating two sheath power cable of crosslinked polyethylene

Info

Publication number: CN215815348U
Application number: CN202121627945.8U
Authority: CN
Inventors: 薛陆军
Original assignee: Wuxi Kaifeng Cable Co ltd
Current assignee: Wuxi Kaifeng Cable Co ltd
Priority date: 2021-07-18
Filing date: 2021-07-18
Publication date: 2022-02-11
Anticipated expiration: 2031-07-18

Abstract

The utility model provides a crosslinked polyethylene insulation-based double-sheath power cable, which relates to the technical field of cables and aims to solve the problems that the interior of the cable is inconvenient to decompress when the conventional power cable is used, and water is easily introduced due to cracks when the conventional power cable is trampled, so that the cable is inconvenient to use. When the device received external pressure, the main part just can contact the decompression ball, and then the decompression ball will drive the telescopic link and spread to the outside, and then the telescopic link bottom will be in flexible inslot portion outwards expand the slip, and then the pressure that will receive disperses the back and unload the power, after the external force extrusion, the telescopic link will be in flexible inslot portion shrink, and then the top is moved the decompression ball and is resumeed original position with the main part, and then avoids leading to the unable condition of using of device because of receiving external force.

Description

Based on insulating two sheath power cable of crosslinked polyethylene

Technical Field

The utility model belongs to the technical field of cables, and particularly relates to a crosslinked polyethylene insulation-based double-sheath power cable.

Background

The cable is an electric energy or signal transmission device, and generally comprises several or several groups of conducting wires, and the cable comprises a power cable, a control cable, a compensation cable, a shielding cable, a high-temperature cable, a computer cable, a signal cable, a coaxial cable, a fire-resistant cable, a marine cable, a mining cable, an aluminum alloy cable and the like. They are composed of single-strand or multi-strand wires and insulating layers and are used for connecting circuits and electric appliances.

Based on discovery among the prior art, current power cable is when using, is not convenient for carry out the decompression to the cable inside, and the fracture appears easily when receiving to trample and leads to intaking, and then leads to the cable not convenient to use, and current power cable is when using, is not convenient for insulate the cable, is not convenient for use.

Therefore, in view of the above, research and improvement are made for the existing structure and defects, and a power cable based on crosslinked polyethylene insulation double-sheath is provided, so as to achieve the purpose of having more practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a crosslinked polyethylene insulation double-sheath power cable, which aims to solve the problems that the interior of the cable is inconvenient to decompress when the conventional power cable is used, water is easily introduced due to cracks when the conventional power cable is trampled, the cable is inconvenient to use, and the conventional power cable is inconvenient to insulate and use when the conventional power cable is used.

The utility model is based on the purpose and the effect of the crosslinked polyethylene insulated double-sheath power cable, and is achieved by the following specific technical means:

a double-sheath power cable based on crosslinked polyethylene insulation comprises: the vacuum insulation device comprises a main body, wherein the main body is of a cylindrical structure, decompression structures which are uniformly arranged are arranged in the main body, and an insulation layer is sleeved in the main body;

the pressure reducing structures are uniformly arranged in the telescopic groove;

the insulating layer is arranged in the main body, and an insulating layer is arranged in the insulating layer;

the insulating layer is of a cylindrical structure.

Further, the method comprises the following steps of; the main body includes:

the telescopic groove is formed in the main body from top to bottom, and is of an arc-shaped structure.

Further, the method comprises the following steps of; the pressure reducing structure includes:

the pressure reducing ball is arranged in the telescopic groove and is of a spherical structure;

the telescopic link, the telescopic link is installed at decompression ball inboard top, and the telescopic link is cylindrical structure to decompression ball is still installed at the telescopic link top.

Further, the method comprises the following steps of; the insulating layer is made of low-smoke halogen-free polyolefin.

Further, the method comprises the following steps of; the isolation layer is made of polyethylene.

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

1. in the device, the pressure reducing structure is arranged, when the device is subjected to external pressure, the main body can contact the pressure reducing ball, the pressure reducing ball can drive the telescopic rod to diffuse outwards, the bottom end of the telescopic rod can expand outwards and slide in the telescopic groove, the received pressure is dispersed and then the force is removed, after the external force extrusion is finished, the telescopic rod can contract in the telescopic groove, the pressure reducing ball is jacked to restore the main body to the original position, and the condition that the device cannot be used due to the external force is avoided;

2. in the device, an insulating layer is arranged; the isolation layer is made of polyethylene, is thermoplastic resin prepared by polymerizing ethylene, and industrially comprises a copolymer of ethylene and a small amount of alpha-olefin, wherein the polyethylene is odorless and nontoxic, has a hand feeling similar to wax, has excellent low-temperature resistance, good chemical stability, can resist corrosion of most of acid and alkali, is insoluble in common solvents at normal temperature, has small water absorption and excellent electrical insulation, and can effectively isolate and further avoid danger.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is a schematic diagram of the main structure of the present invention.

Fig. 3 is a schematic view of the structure of the pressure reducing structure of the present invention.

Fig. 4 is a schematic exploded view of the main body of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a main body; 101. a telescopic groove;

2. a pressure relief structure; 201. a pressure reducing ball; 202. a telescopic rod;

3. an insulating layer;

4. and an insulating layer.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 4:

the utility model provides a crosslinked polyethylene insulation-based double-sheath power cable which comprises a main body 1, wherein as shown in figure 1, the main body 1 is of a cylindrical structure, pressure reducing structures 2 which are uniformly arranged are arranged in the main body 1, and an insulation layer 3 is sleeved in the main body 1; the decompression structures 2 are uniformly arranged in the telescopic groove 101; the insulating layer 3, the insulating layer 3 is installed inside the body 1, the insulating layer 3 is installed inside the insulating layer 4; isolation layer 4, isolation layer 4 is cylindrical structure.

Wherein, main part 1 includes: as shown in fig. 2 and 4, the telescopic groove 101 is used for assisting the movement of the pressure reducing structure 2, the telescopic groove 101 is vertically opened in the main body 1, and the telescopic groove 101 is in an arc structure; the pressure reducing structure 2 includes: as shown in fig. 3, the pressure reducing ball 201 is used for limiting the telescopic rod 202, the pressure reducing ball 201 is installed inside the telescopic groove 101, and the pressure reducing ball 201 is a spherical structure; the telescopic rod 202 is used for reducing pressure of the auxiliary device, the telescopic rod 202 is installed at the top of the inner side of the pressure reducing ball 201, the telescopic rod 202 is of a cylindrical structure, and the pressure reducing ball 201 is further installed at the top of the telescopic rod 202; as shown in fig. 2, the insulating layer 3 is made of low smoke halogen-free polyolefin; isolation layer 4 is the polyethylene material, and isolation layer 4 is inside to be seted up the round hole of align to grid.

In another embodiment, the periphery of the main body 1 is further sleeved with a rain shielding member with a waterproof structure, so that the main body can be prevented from being used in rainy days due to rainwater corrosion.

The specific use mode and function of the embodiment are as follows:

in the utility model, when the device is pressed by the outside, the main body 1 can contact the pressure reducing ball 201, and then the pressure reducing ball 201 can drive the telescopic rod 202 to diffuse outwards, and then the bottom end of the telescopic rod 202 can expand outwards and slide in the telescopic groove 101, so that the pressure is dispersed and then the force is removed, after the extrusion by the external force is finished, the telescopic rod 202 can contract in the telescopic groove 101, and then the pressure reducing ball 201 is pushed to restore the main body 1 to the original position, thereby avoiding the condition that the device cannot be used due to the external force, because the isolation layer 4 is made of polyethylene, the polyethylene is thermoplastic resin prepared by polymerizing ethylene, in industry, the polyethylene also comprises a copolymer of ethylene and a small amount of alpha-olefin, the polyethylene is odorless, nontoxic, has the hand feeling similar to wax, has excellent low temperature resistance, has good chemical stability, can resist the corrosion of most of acid and alkali, and is insoluble in common solvents at normal temperature, the water absorption is small, the electric insulation is excellent, and then the isolation can be effectively carried out, and further danger is avoided.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides an insulating two sheath power cable based on crosslinked polyethylene which characterized in that: the insulation structure comprises a main body (1), wherein the main body (1) is of a cylindrical structure, decompression structures (2) which are uniformly arranged are arranged in the main body (1), and an insulation layer (3) is sleeved in the main body (1);

the decompression structures (2), the decompression structures (2) are uniformly arranged and installed in the telescopic groove (101);

the insulation layer (3), the insulation layer (3) is installed inside the main body (1), and an isolation layer (4) is installed inside the insulation layer (3);

the insulating layer (4), insulating layer (4) are cylindrical structure.

2. The crosslinked polyethylene based insulated double-jacketed power cable according to claim 1, wherein: the main body (1) comprises:

the telescopic groove (101) is formed in the main body (1) vertically, and the telescopic groove (101) is of an arc-shaped structure.

3. The crosslinked polyethylene based insulated double-jacketed power cable according to claim 1, wherein: the pressure reducing structure (2) includes:

the pressure reducing ball (201) is mounted inside the telescopic groove (101), and the pressure reducing ball (201) is of a spherical structure;

the telescopic rod (202), telescopic rod (202) are installed at the inside top of decompression ball (201), and telescopic rod (202) are cylindrical structure to decompression ball (201) are still installed at telescopic rod (202) top.

4. The crosslinked polyethylene based insulated double-jacketed power cable according to claim 1, wherein: the insulating layer (3) is made of low-smoke halogen-free polyolefin.

5. The crosslinked polyethylene based insulated double-jacketed power cable according to claim 1, wherein: the isolation layer (4) is made of polyethylene.