CN213752040U

CN213752040U - Durable insulating polyvinyl chloride sheath power cable

Info

Publication number: CN213752040U
Application number: CN202023138388.1U
Authority: CN
Inventors: 徐惠平; 夏涛; 徐广宇
Original assignee: Jiangsu Yujiu Cable Technology Co ltd
Current assignee: Jiangsu Yujiu Cable Technology Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-07-20
Anticipated expiration: 2030-12-24

Abstract

The utility model discloses a durable insulating polyvinyl chloride sheath power cable relates to cable technical field, wraps up layer upon layer for solving the insulating polyvinyl chloride sheath that uses on the cable now, and the both ends of sheath do not carry out the front cover with fixed knot structure for the problem that the protection dynamics of terminal surface is not enough. The fixing sleeve piece is installed on the outer wall of the power cable main body and is connected with the power cable main body sleeve, a connecting piece is arranged on the upper end face of the fixing sleeve piece, a fixing rod body is arranged on the upper end face of the connecting piece, one end of the fixing rod body is connected with the connecting piece in a welding mode, the connecting piece is connected with the power cable main body in a threaded mode through a hexagonal installing rivet, and the hexagonal installing rivet is provided with a plurality of parts.

Description

Durable insulating polyvinyl chloride sheath power cable

Technical Field

The utility model relates to the technical field of cables, specifically be a durable insulating polyvinyl chloride sheath power cable.

Background

A cable is a power or signal transmission device, and is generally composed of several wires or groups of wires. The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like. Cables can be divided into direct current cables and alternating current cables according to the system of the photovoltaic power station, and are classified according to different purposes and use environments as follows: 1. direct current cable (1) subassembly and the series connection cable between the subassembly. (2) Parallel cables between the strings and a direct current distribution box (combiner box). (3) And a cable from the direct current distribution box to the inverter. The cables are direct-current cables, are laid outdoors more frequently, need to be moisture-proof, insolation-proof, cold-resistant, heat-resistant and ultraviolet-resistant, and need to be resistant to chemical substances such as acid and alkali in certain special environments.

However, the insulating polyvinyl chloride sheaths used on the existing cables are wrapped layer by layer, and the two ends of the sheaths are not provided with fixed structures for sealing, so that the protection strength of the end surfaces is insufficient; thus, the existing needs are not met, and a durable insulated polyvinyl chloride jacketed power cable has been proposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a durable insulating polyvinyl chloride sheath power cable to the current insulating polyvinyl chloride sheath of using on the cable that proposes in solving above-mentioned background all wraps up layer upon layer, and the both ends of sheath do not carry out the front cover with fixed knot structure, make the not enough problem of protection dynamics of terminal surface.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a durable insulating polyvinyl chloride sheath power cable, includes power cable main part and fixed external member piece, fixed external member piece is installed on the outer wall of power cable main part, and fixed external member piece and power cable main part muffjoint, the up end of fixed external member piece is provided with the connection piece, the up end of connection piece is provided with the fixed body of rod, the one end and the connection piece welded connection of the fixed body of rod, the connection piece is through installation hexagonal rivet and power cable main part threaded connection, and installation hexagonal rivet is provided with a plurality of.

Preferably, the up end of the fixed body of rod is provided with the flexible body of rod, and the one end of the flexible body of rod runs through and extends to the inside of the fixed body of rod, the outer wall of the fixed body of rod is provided with first preformed hole groove, and first preformed hole groove is provided with threely, the outer wall of the flexible body of rod is provided with spacing protruding piece, and the one end and the flexible body of rod fixed connection of spacing protruding piece, the inside at first preformed hole groove is installed to spacing protruding piece.

Preferably, the upper end face of the telescopic rod body is provided with a thread mounting block, and the thread mounting block is fixedly connected with the other end of the telescopic rod body.

Preferably, the both ends of power cable main part all are provided with the ventilative filter screen of terminal surface, and the ventilative filter screen of terminal surface is provided with two, two the ventilative filter screen of terminal surface all with power cable main part fixed connection, two the inside outside of the ventilative filter screen of terminal surface all is provided with the mounting hole groove, and the mounting hole groove is provided with eight, two the inside of the ventilative filter screen of terminal surface is provided with second preformed hole groove, and the second preformed hole groove is provided with four.

Preferably, the inner wall of the power cable main body is provided with an outer sleeve, an anti-UV layer is arranged inside the outer sleeve, a fire-resistant layer is arranged on the inner side of the anti-UV layer, a water-resistant layer is arranged on the inner side of the fire-resistant layer, a flame-retardant layer is arranged on the inner side of the water-resistant layer, and an oxygen-isolating layer is arranged on the inner side of the flame-retardant layer.

Preferably, the inner side of the oxygen isolation layer is provided with an insulating layer, the inner side of the insulating layer is provided with a steel armor layer, the inner side of the steel armor layer is provided with a filling layer, two conductor bodies are arranged in the filling layer, and the number of the conductor bodies is two.

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

1. the utility model discloses a terminal surface filter screen of breathing freely that sets up in the both ends end department of power cable main part can the connecting force on the inside each layer terminal surface of this power cable main part of effectual improvement, plays certain protection effect to the terminal part, and the inside conductor accessible second preformed hole groove of this power cable passes, fixes with red copper joint, and the both ends of having avoided the sheath do not have fixed knot to carry out the front cover for the problem that the protection dynamics of terminal surface is not enough.

2. Through the fixed body of rod and the flexible body of rod that sets up, let the device accomplish the back in the installation, can carry out the adjustment in height to increase the convenient degree of the device when using, and the setting of filling layer, the effectual protection that provides the buffering to inside conductor body.

Drawings

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

Fig. 2 is a schematic sectional view of the present invention.

Fig. 3 is a schematic view of the cross-section internal structure of the present invention.

In the figure: 1. a power cable body; 101. fixing the external member block; 2. the end face is provided with a breathable filter screen; 3. connecting sheets; 4. fixing the rod body; 5. installing a hexagonal rivet; 6. a first preformed hole groove; 7. a limiting convex block; 8. a telescopic rod body; 9. a threaded mounting block; 10. mounting a hole groove; 11. a second preformed hole groove; 12. a jacket; 13. a UV resistant layer; 14. a refractory layer; 15. a water resistant layer; 16. a flame retardant layer; 17. an oxygen barrier layer; 18. an insulating layer; 19. a steel layer armor layer; 20. a filling layer; 21. a conductor body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a durable insulating polyvinyl chloride sheath power cable, including power cable main part 1 and fixed external member piece 101, install on power cable main part 1's outer wall fixed external member piece 101, and fixed external member piece 101 and 1 muffjoint of power cable main part, the up end of fixed external member piece 101 is provided with connection piece 3, the up end of connection piece 3 is provided with the fixed body of rod 4, the one end and the 3 welded connection of connection piece of the fixed body of rod 4, connection piece 3 is through installation hexagonal rivet 5 and 1 threaded connection of power cable main part, and installation hexagonal rivet 5 is provided with a plurality of, the setting of installation hexagonal rivet 5, make installation or dismantlement all comparatively convenient.

Further, the up end of the fixed body of rod 4 is provided with the flexible body of rod 8, and the one end of the flexible body of rod 8 runs through and extends to the inside of the fixed body of rod 4, the outer wall of the fixed body of rod 4 is provided with first preformed hole groove 6, and first preformed hole groove 6 is provided with threely, the outer wall of the flexible body of rod 8 is provided with spacing protruding piece 7, and the one end and the flexible body of rod 8 fixed connection of spacing protruding piece 7, the inside at first preformed hole groove 6 is installed to spacing protruding piece 7, the setting of spacing protruding piece 7, effectual carry out the adjustment on the height to the flexible body of rod 8.

Further, the up end of the telescopic rod body 8 is provided with a thread mounting block 9, and the thread mounting block 9 is fixedly connected with the other end of the telescopic rod body 8, so that the probability of falling off is reduced.

Further, both ends of the power cable main body 1 are provided with the end face breathable filter screens 2, the end face breathable filter screens 2 are provided with two, the two end face breathable filter screens 2 are fixedly connected with the power cable main body 1, the outer sides of the inner portions of the two end face breathable filter screens 2 are provided with the mounting hole grooves 10, the mounting hole grooves 10 are provided with eight, the inner portions of the two end face breathable filter screens 2 are provided with the second reserved hole grooves 11, the second reserved hole grooves 11 are provided with four, and the fixed connection reduces the falling probability.

Further, the inner wall of the power cable main body 1 is provided with an outer sleeve 12, an anti-UV layer 13 is arranged inside the outer sleeve 12, a fire-resistant layer 14 is arranged on the inner side of the anti-UV layer 13, a water-resistant layer 15 is arranged on the inner side of the fire-resistant layer 14, a flame-retardant layer 16 is arranged on the inner side of the water-resistant layer 15, an oxygen-isolating layer 17 is arranged on the inner side of the flame-retardant layer 16, and the fire-resistant performance and the waterproof performance of the device are effectively improved due to the arrangement of the fire-resistant layer 14 and the water-resistant layer 15.

Further, the inside of oxygen barrier 17 is provided with insulating layer 18, and the inboard of insulating layer 18 is provided with steel armor 19, and the inboard of steel armor 19 is provided with filling layer 20, and the inside of filling layer 20 is provided with conductor body 21, and conductor body 21 is provided with two, and the setting of filling layer 20 is effectual provides the protection of buffering to inside conductor body 21.

The working principle is as follows: during the use, install fixed external member piece 101 on power cable main part 1, through reciprocating of spacing protruding piece 7 and the flexible body of rod 8, can carry out the adjustment on the height, and spacing protruding piece 7 that sets up in first preformed hole groove 6, can carry out firm fixed, the terminal surface filter screen 2 that breathes freely that sets up in power cable main part 1's both ends end department, can the effectual joining force that improves on each layer of terminal surface of this power cable main part 1 inside, this power cable main part 1 inside conductor body 21, can let it pass through second preformed hole groove 11, fix with the red copper joint.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A durable insulated polyvinyl chloride sheathed power cable comprising a power cable body (1) and a fixed kit block (101), characterized in that: the power cable is characterized in that the fixed sleeve piece (101) is installed on the outer wall of the power cable main body (1), the fixed sleeve piece (101) is connected with the power cable main body (1) in a sleeve mode, a connecting piece (3) is arranged on the upper end face of the fixed sleeve piece (101), a fixed rod body (4) is arranged on the upper end face of the connecting piece (3), one end of the fixed rod body (4) is connected with the connecting piece (3) in a welding mode, the connecting piece (3) is connected with the power cable main body (1) in a threaded mode through the installation hexagonal rivet (5), and the installation hexagonal rivet (5) is provided with a plurality of.

2. A durable insulated polyvinyl chloride jacketed power cable as claimed in claim 1, wherein: the utility model discloses a telescopic rod, including the fixed body of rod (4), the up end of the fixed body of rod (4) is provided with flexible body of rod (8), and the one end of the flexible body of rod (8) runs through and extends to the inside of the fixed body of rod (4), the outer wall of the fixed body of rod (4) is provided with first preformed hole groove (6), and first preformed hole groove (6) are provided with threely, the outer wall of the flexible body of rod (8) is provided with spacing protruding piece (7), and the one end and the flexible body of rod (8) fixed connection of spacing protruding piece (7), the inside in first preformed hole groove (6) is installed in spacing protruding piece (7).

3. A durable insulated polyvinyl chloride jacketed power cable as claimed in claim 2, wherein: the upper end face of the telescopic rod body (8) is provided with a thread mounting block (9), and the thread mounting block (9) is fixedly connected with the other end of the telescopic rod body (8).

4. A durable insulated polyvinyl chloride jacketed power cable as claimed in claim 1, wherein: both ends of power cable main part (1) all are provided with terminal surface filter screen (2) that breathes freely, and terminal surface filter screen (2) that breathes freely are provided with two, two terminal surface filter screen (2) that breathes freely all with power cable main part (1) fixed connection, two the inside outside of terminal surface filter screen (2) that breathes freely all is provided with mounting hole groove (10), and mounting hole groove (10) is provided with eight, two the inside of terminal surface filter screen (2) that breathes freely is provided with second preformed hole groove (11), and second preformed hole groove (11) are provided with four.

5. A durable insulated polyvinyl chloride jacketed power cable as claimed in claim 1, wherein: the inner wall of the power cable main body (1) is provided with an outer sleeve (12), an anti-UV layer (13) is arranged inside the outer sleeve (12), a fire-resistant layer (14) is arranged on the inner side of the anti-UV layer (13), a water-resistant layer (15) is arranged on the inner side of the fire-resistant layer (14), a flame-retardant layer (16) is arranged on the inner side of the water-resistant layer (15), and an oxygen-isolating layer (17) is arranged on the inner side of the flame-retardant layer (16).

6. A durable insulated polyvinyl chloride jacketed power cable as claimed in claim 5, wherein: the oxygen barrier is characterized in that an insulating layer (18) is arranged on the inner side of the oxygen barrier (17), a steel armor layer (19) is arranged on the inner side of the insulating layer (18), a filling layer (20) is arranged on the inner side of the steel armor layer (19), conductor bodies (21) are arranged inside the filling layer (20), and the number of the conductor bodies (21) is two.