CN216053994U

CN216053994U - High-flame-retardant high-temperature-resistant PVC (polyvinyl chloride) insulated power line

Info

Publication number: CN216053994U
Application number: CN202121740424.3U
Authority: CN
Inventors: 夏小丽; 周磊; 王文林
Original assignee: Tongxiang Zhongmao Electric Co ltd
Current assignee: Tongxiang Zhongmao Electric Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-03-15
Anticipated expiration: 2031-07-29

Abstract

The utility model discloses a high-flame-retardant high-temperature-resistant PVC (polyvinyl chloride) insulated power line, which relates to the field of power lines and comprises a PVC insulated sleeve, wherein three wire core holes distributed in an annular array are formed in the surface of one end of the PVC insulated sleeve, and wire cores are arranged in the wire core holes. According to the PVC insulation device, the insulation sleeve is sleeved on the outer side of the wire core and made of insulation silica gel to isolate external heat, so that the high temperature resistance of the device is improved, the protection sleeve is sleeved on the outer side of the PVC insulation sleeve, the plurality of buffer strips are arranged on the inner side of the protection sleeve, the PVC insulation sleeve is buffered through the buffer strips, so that the impact resistance of the device is improved, the insulation filler is filled between the protection sleeve and the PVC insulation sleeve, the insulation filler is made of insulation cotton to further improve the high temperature resistance of the device, and the flame-retardant filler is filled between the protection sleeve and the insulation filler and made of asbestos to improve the flame-retardant property of the device.

Description

High-flame-retardant high-temperature-resistant PVC (polyvinyl chloride) insulated power line

Technical Field

The utility model relates to the field of power lines, in particular to a high-flame-retardant high-temperature-resistant PVC (polyvinyl chloride) insulated power line.

Background

The power line is a wire for transmitting current, the common current transmission mode is point-to-point transmission, the power line can be divided into an AC power line and a DC power line according to purposes, the AC power line is a wire for passing AC with higher voltage, the wire can be formally produced by obtaining safety certification due to the fact that the voltage is higher and needing uniform standard, the existing power line is simple in structure, the power line cannot be used in a high-temperature environment, and meanwhile, the risk of combustion exists, therefore, the utility model is necessary for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-flame-retardant high-temperature-resistant PVC insulated power line, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a high fire-retardant high temperature resistant PVC insulated power cord, includes the PVC insulating cover, the three core hole that is ring array distribution is seted up on the one end surface of PVC insulating cover, the inside in core hole is provided with the sinle silk, the sinle silk is formed for many copper wires transposition, the outside cover of sinle silk is equipped with the radiation shield, the lateral wall of radiation shield and the inner wall fixed connection in core hole, the outside cover of PVC insulating cover is equipped with the lag, four buffer strips that are ring array distribution of inner wall fixedly connected with of lag, the one end that the lag was kept away from to the buffer strip sets up to the arc, the one end that the lag was kept away from to the buffer strip and the outside surface butt of PVC insulating cover, it has thermal-insulated filler to fill between lag and the PVC insulating cover, the outside cover of lag is equipped with outer protective sheath.

Preferably, the outer side wall of the protecting sleeve is fixedly connected with a plurality of fixing columns, and the plurality of fixing columns are distributed in an annular array.

Preferably, one end of the fixing column, which is far away from the protective sleeve, is fixedly connected with the inner wall of the outer protective sleeve, and a flame-retardant filler is filled between the outer protective sleeve and the protective sleeve.

Preferably, a plurality of arc-shaped grooves are formed in the outer side wall of the outer protective sleeve, and the arc-shaped grooves are distributed in an annular array.

Preferably, the heat insulation sleeve is made of heat insulation silica gel, the heat insulation filler is made of heat insulation cotton, and the flame retardant filler is made of asbestos.

The utility model has the technical effects and advantages that:

according to the PVC insulation device, the insulation sleeve is sleeved on the outer side of the wire core and made of insulation silica gel to isolate external heat, so that the high temperature resistance of the device is improved, the protection sleeve is sleeved on the outer side of the PVC insulation sleeve, the plurality of buffer strips are arranged on the inner side of the protection sleeve, the PVC insulation sleeve is buffered through the buffer strips, so that the impact resistance of the device is improved, the insulation filler is filled between the protection sleeve and the PVC insulation sleeve, the insulation filler is made of insulation cotton to further improve the high temperature resistance of the device, and the flame-retardant filler is filled between the protection sleeve and the insulation filler and made of asbestos to improve the flame-retardant property of the device.

Drawings

Fig. 1 is a schematic cross-sectional view of the overall structure of the present invention.

Fig. 2 is an enlarged schematic view of the structure at a in fig. 1 according to the present invention.

Fig. 3 is a perspective view of the protective cover structure of the present invention.

In the figure: 1. a PVC insulating sleeve; 2. a core hole; 3. a wire core; 4. a heat insulating sleeve; 5. a protective sleeve; 6. a buffer strip; 7. a thermally insulating filler; 8. an outer protective sheath; 9. fixing a column; 10. a flame retardant filler; 11. an arc-shaped groove.

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.

The utility model provides a high-flame-retardant high-temperature-resistant PVC insulated power line as shown in figures 1-3, which comprises a PVC insulating sleeve 1, wherein one end surface of the PVC insulating sleeve 1 is provided with three wire core holes 2 distributed in an annular array, a wire core 3 is arranged inside each wire core hole 2, each wire core 3 is formed by twisting a plurality of copper wires, the outer side of each wire core 3 is sleeved with a heat insulating sleeve 4, each heat insulating sleeve 4 is made of heat insulating silica gel, each wire core 3 is separated from the PVC insulating sleeve 1 through the heat insulating sleeve 4, the heat transmission is avoided by the heat insulating sleeve 1, so that the heat insulating performance of the device is improved, the outer side wall of each heat insulating sleeve 4 is fixedly connected with the inner wall of each wire core hole 2, the outer side of the PVC insulating sleeve 1 is sleeved with a protective sleeve 5, the inner wall of the protective sleeve 5 is fixedly connected with four buffer strips 6 distributed in an annular array, one ends of the buffer strips 6 far away from the protective sleeve 5 are arranged in an arc shape, one end of the buffer strips 6 far away from the protective sleeve 5 is abutted against the outer side surface of the PVC insulating sleeve 1, this device is receiving external shock to make, and deformation takes place for 6 meeting atress of buffering strip to the impact force that will receive absorbs, reduces the impact force that sinle silk 3 received, has improved the shock resistance of this device, and it has thermal-insulated filler 7 to fill between lag 5 and the insulating cover 1 of PVC, and thermal-insulated filler 7 sets up to thermal-insulated cotton, and thermal-insulated cotton has good heat-proof quality, has further improved the heat-proof quality of this device, thereby makes this device be applicable to high temperature environment, has improved the high temperature resistance of this device.

Secondly, the outer side of the protecting jacket 5 is sleeved with an outer protecting jacket 8, the outer protecting jacket 8 provides outermost protection for the device, so that the device is more durable, the outer side wall of the protecting jacket 5 is fixedly connected with a plurality of fixing columns 9, the fixing columns 9 are distributed in an annular array, one ends, far away from the protecting jacket 5, of the fixing columns 9 are fixedly connected with the inner wall of the outer protecting jacket 8, the outer protecting jacket 8 and the protecting jacket 5 are connected through the fixing columns 9, flame-retardant fillers 10 are filled between the outer protecting jacket 8 and the protecting jacket 5, the flame-retardant fillers 10 are set to be asbestos, the asbestos has stronger flame-retardant performance, so that the flame retardance of the device is improved when the device is used, the outer side wall of the outer protecting jacket 8 is provided with a plurality of arc-shaped grooves 11, the arc-shaped grooves 11 are distributed in an annular array, the contact area between the device and the outside when the device is used is reduced through the arc-shaped grooves 11, so that the loss generated by friction is reduced, the service life of the device is prolonged.

The working principle of the utility model is as follows:

when the device is used, the heat insulation sleeve 4 is sleeved outside the wire core 3, the heat insulation sleeve 4 is made of heat insulation silica gel, external heat is isolated, the high temperature resistance of the device is improved, the protective sleeve 5 is sleeved outside the PVC insulating sleeve 1, the heat insulation filler 7 is filled between the protective sleeve 5 and the PVC insulating sleeve 1, and the heat insulation filler 7 is made of heat insulation cotton, so that the high-temperature resistance of the device is further improved, the device is suitable for high-temperature environments, the application range of the device is improved, the inner side of the protective sleeve 5 is provided with the plurality of buffer strips 6, the PVC insulating sleeve 1 is buffered through the buffer strips 6, the shock resistance of the device is improved, the flame-retardant filler 10 is filled between the protective sleeve 5 and the heat insulation filler 7, and the flame-retardant filler 10 is made of asbestos, so that the flame-retardant performance of the device is improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides an insulating power cord of high fire-retardant high temperature resistant PVC, includes PVC insulating cover (1), its characterized in that: the PVC insulation sleeve is characterized in that three core holes (2) distributed in an annular array are formed in the surface of one end of the PVC insulation sleeve (1), a core (3) is arranged in each core hole (2), each core (3) is formed by twisting a plurality of copper wires, a heat insulation sleeve (4) is sleeved on the outer side of each core (3), the outer side wall of each heat insulation sleeve (4) is fixedly connected with the inner wall of each core hole (2), a protection sleeve (5) is sleeved on the outer side of each PVC insulation sleeve (1), four buffer strips (6) distributed in an annular array are fixedly connected with the inner wall of each protection sleeve (5), one ends, far away from the protection sleeves (5), of the buffer strips (6) are arranged to be arc-shaped, one ends, far away from the protection sleeves (5), of the buffer strips (6) are abutted to the outer side surfaces of the PVC insulation sleeves (1), and heat insulation fillers (7) are filled between the protection sleeves (5) and the PVC insulation sleeves (1), the outer side of the protective sleeve (5) is sleeved with an outer protective sleeve (8).

2. The PVC insulated power wire with high flame retardance and high temperature resistance according to claim 1, is characterized in that: the outer side wall of the protecting sleeve (5) is fixedly connected with a plurality of fixing columns (9), and the fixing columns (9) are distributed in an annular array.

3. The PVC insulated power wire with high flame retardance and high temperature resistance according to claim 2, is characterized in that: one end, far away from the protective sleeve (5), of the fixing column (9) is fixedly connected with the inner wall of the outer protective sleeve (8), and a flame-retardant filler (10) is filled between the outer protective sleeve (8) and the protective sleeve (5).

4. The PVC insulated power wire with high flame retardance and high temperature resistance according to claim 3, is characterized in that: a plurality of arc-shaped grooves (11) are formed in the outer side wall of the outer protective sleeve (8), and the arc-shaped grooves (11) are distributed in an annular array.

5. The PVC insulated power wire with high flame retardance and high temperature resistance according to claim 4, is characterized in that: the heat insulation sleeve (4) is made of heat insulation silica gel, the heat insulation filler (7) is set to be heat insulation cotton, and the flame-retardant filler (10) is set to be asbestos.