Insulating sleeve structure and power transmission line

By designing an insulating bushing structure, the problem of leakage caused by friction of low-voltage power distribution lines in forests was solved, achieving insulation protection and heat dissipation of the conductors, and improving safety and service life.

CN115240931BActive Publication Date: 2026-03-24GUANGDONG POWER GRID CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-08
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

When outdoor low-voltage power distribution lines pass through bamboo forests or woodlands, the insulation layer is damaged due to long-term collision and friction between the conductors and tree branches and trunks, which can easily lead to leakage and pose a safety hazard.

Method used

Design an insulating sleeve structure, including wire fixing parts and insulating sleeve components, connected by multiple connectors, featuring a heat dissipation hole design and an openable sleeve component, made of rigid flame-retardant PC material, to prevent leakage caused by wire friction and improve safety.

Benefits of technology

It effectively prevents wire leakage, improves safety and service life, has a simple and compact structure, adapts to different usage needs, and has insulation and heat dissipation functions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of wire protection devices, and discloses an insulating sleeve structure and a transmission wire. The insulating sleeve structure comprises a wire fixing piece, an insulating sleeve part and a plurality of first connecting pieces, the wire fixing piece is sleeved outside the wire, the insulating sleeve part is circumferentially arranged outside the wire fixing piece, and the plurality of first connecting pieces are connected between the wire fixing piece and the insulating sleeve part and radially distributed around the wire fixing piece. The insulating sleeve structure is simple in structure and reasonable in arrangement. The wire fixing piece is used for supporting the wire, the insulating sleeve part is circumferentially arranged outside the wire fixing piece, can play an insulating protection role on the wire, prevents the wire from being electrified due to long-term friction, improves the safety, and the plurality of first connecting pieces are used for connecting the wire fixing piece and the insulating sleeve structure, so that the overall structure is compact and stable.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wire protection devices, in particular to an insulation protection sleeve and a transmission wire. BACKGROUND

[0002] In some outdoor power distribution areas, such as rural low-voltage power distribution network areas, it is common for low-voltage power distribution lines to pass through bamboo forests and tree forests. Most low-voltage lines do not use insulation sleeves. When passing through tree forests, the wires and tree branches and trunks are in long-term collision and friction, which can easily cause damage to the insulation layer outside the low-voltage wire, and further cause electrical leakage, posing a safety hazard.

[0003] Therefore, there is an urgent need to provide an insulation sleeve structure and a transmission wire to solve the above problems. SUMMARY

[0004] According to one aspect of the present application, the purpose of the present application is to provide an insulation sleeve structure that can provide insulation protection for the wire, prevent wire leakage caused by long-term friction, and improve safety.

[0005] To achieve the above purpose, the present application realizes the following technical solutions:

[0006] An insulation sleeve structure comprises:

[0007] A wire fixing member is sleeved on the outside of the wire.

[0008] An insulation sleeve component is circumferentially arranged on the outside of the wire fixing member.

[0009] A plurality of first connecting members are connected between the wire fixing member and the insulation sleeve component, and the plurality of first connecting members are distributed in a radial manner with the wire fixing member as the center.

[0010] As a preferred solution of the insulation sleeve structure, a non-slip pad is attached to the inside of the wire fixing member.

[0011] As a preferred solution of the insulation sleeve structure, the insulation sleeve component comprises a first sleeve, a second sleeve, and a plurality of second connecting members, the first sleeve is circumferentially arranged outside the wire fixing member, the second sleeve is circumferentially arranged outside the first sleeve, and the plurality of second connecting members are connected between the first sleeve and the second sleeve.

[0012] As a preferred solution of the insulation sleeve structure, the side wall of the first sleeve is provided with a plurality of first heat dissipation holes arranged at intervals, and the side wall of the second sleeve is provided with a plurality of second heat dissipation holes arranged at intervals.

[0013] As a preferred solution of the insulating sleeve structure, the first heat dissipation hole and the second heat dissipation hole are staggered.

[0014] As a preferred solution of the insulating sleeve structure, the first sleeve comprises a first pipe part and a second pipe part arranged oppositely and openable and closable.

[0015] The second sleeve comprises a third pipe part and a fourth pipe part arranged oppositely and openable and closable, one end of the third pipe part and the fourth pipe part is hingedly connected, and the other end is detachably connected.

[0016] As a preferred solution of the insulating sleeve structure, the free end of one of the third pipe part and the fourth pipe part is provided with a buckle, and the other is provided with a limiting groove, the buckle is accommodated in the limiting groove and connected through a fastener.

[0017] As a preferred solution of the insulating sleeve structure, the number of buckles is multiple, and the multiple buckles are arranged along the axial direction of the second sleeve.

[0018] The number of limiting grooves is multiple, and the multiple limiting grooves are arranged along the axial direction of the second sleeve, and the multiple limiting grooves and the multiple buckles are one-to-one corresponding and matched, and each of the buckles and the limiting grooves is connected through the fastener.

[0019] According to another aspect of the present application, the purpose of the present application is also to provide a transmission wire which can insulate and protect the wire and improve the service life and safety of the wire.

[0020] To achieve the above purpose, the present application realizes the following technical solutions:

[0021] A transmission wire comprises three live wires and one zero wire, and further comprises the insulating sleeve structure according to any one of the above, and the insulating sleeve structure is arranged around each of the live wires and the zero wire.

[0022] As a preferred solution of the transmission wire, a telescopic rod is connected between two adjacent insulating sleeve structures.

[0023] The present application has the following beneficial effects:

[0024] The insulating sleeve structure provided by the present application has the advantages of simple structure and reasonable arrangement. The wire fixing member is used for supporting the wire, the insulating sleeve member is arranged around the outside of the wire fixing member, can insulate and protect the wire, prevent the wire from being electrified due to long-term friction, improve the safety, and the multiple first connecting members are used for connecting the wire fixing member and the insulating sleeve structure, so that the overall structure is compact and stable.

[0025] The transmission wire provided by this invention, by applying the above-mentioned insulating sleeve structure, can provide insulation protection for the conductor, thereby improving the service life of the conductor and enhancing safety. Attached Figure Description

[0026] To more clearly and understandably 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 introduced below. The drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of the transmission line provided in an embodiment of the present invention;

[0028] Figure 2 This is a cross-sectional view of the insulating sleeve structure provided in the embodiment of the present invention in the first state;

[0029] Figure 3 This is a cross-sectional view of the insulating sleeve structure provided in the embodiment of the present invention in the second state.

[0030] In the picture:

[0031] 100. Insulating sleeve structure; 200. Telescopic pole;

[0032] 1. Wire fixing components;

[0033] 2. Insulating sleeve assembly; 21. First sleeve; 211. First heat dissipation hole; 212. First tube section; 213. Second tube section; 22. Second sleeve; 221. Second heat dissipation hole; 222. Third tube section; 223. Fourth tube section; 23. Second connector;

[0034] 3. First connector. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0036] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0039] refer to Figure 1 This embodiment provides a transmission wire including three live wires and one neutral wire to form a three-phase four-wire system. It also includes an insulating sleeve structure 100, which surrounds each live wire and neutral wire. The insulating sleeve structure 100 provides insulation protection for the wires, preventing leakage caused by friction during long-term outdoor use, thus improving the lifespan and safety of the wires.

[0040] Further reference Figure 1 Adjacent insulating sleeve structures 100 are connected by a telescopic rod 200. Typically, four insulating sleeve structures 100 are arranged in a row, with both ends of the telescopic rod 200 connected to adjacent insulating sleeve structures 100. The phase distance of the three-phase four-wire system can be adjusted by pushing and pulling the telescopic rod 200 to meet different usage requirements. The telescopic rod 200 is existing technology; any type of telescopic rod 200 capable of achieving the above functions can be used in this embodiment.

[0041] Specifically, such as Figure 2 As shown, the insulating sleeve structure 100 provided in this embodiment includes a wire fixing member 1, an insulating sleeve component 2, and a plurality of first connecting members 3. The wire fixing member 1 is sleeved on the outside of the wire and is used to support and fix the wire. The insulating sleeve component 2 surrounds the outside of the wire fixing member 1, which can provide insulation protection for the wire and improve safety. The plurality of first connecting members 3 are connected between the wire fixing member 1 and the insulating sleeve component 2, and are used to fix the wire fixing member 1 and the insulating sleeve structure 100. The plurality of first connecting members 3 are radially distributed with the wire fixing member 1 as the center, making the overall structure compact and stable. It should be noted that the number of first connecting members 3 is not specifically limited here, and can be adaptively selected according to actual needs.

[0042] It should be noted that the wire fixing component 1 can be set as a closed ring or an openable ring, which facilitates installation and allows the wire fixing component 1 to fit the wire well. The insulating sleeve component 2 is made of rigid flame-retardant PC (polycarbonate) material, which has good mechanical properties, flame retardancy and insulation properties, and is waterproof and dustproof.

[0043] Preferably, an anti-slip pad is affixed to the inner wall of the wire fixing member 1. More preferably, the anti-slip pad is an ABS threaded anti-slip pad, which can effectively prevent water and slippage, and prevent the wire from sliding.

[0044] Furthermore, such as Figure 2 As shown, the insulating sleeve component 2 includes a first sleeve 21, a second sleeve 22, and multiple second connectors 23. The second sleeve 22 surrounds the first sleeve 21, and the multiple second connectors 23 connect the first sleeve 21 and the second sleeve 22, with the multiple second connectors 23 radially distributed around the first sleeve 21. By setting a double-layer insulating sleeve, the insulation protection of the conductor can be further improved, effectively preventing low-voltage lines from being scratched by tree branches, and further improving safety performance. The number of second connectors 23 is not specifically limited here and can be selected adaptively according to actual needs.

[0045] In existing technologies, the insulating bushings commonly used in low-voltage lines lack ventilation and heat dissipation functions. In summer, when low-voltage lines carry high currents, they are prone to melting and cracking. To address these problems, such as... Figure 2 As shown, the first sleeve 21 has multiple spaced first heat dissipation holes 211 on its side wall, and the second sleeve 22 has multiple spaced second heat dissipation holes 221 on its side wall, enabling the insulating sleeve structure 100 to have a heat dissipation function. The hole diameter is approximately 5mm. The specific number of the first heat dissipation holes 211 and the second heat dissipation holes 221 is not specifically limited here and can be adapted according to actual needs.

[0046] Preferably, continue to refer to Figure 2 To prevent small branches from being inserted into the heat dissipation holes, the first heat dissipation hole 211 and the second heat dissipation hole 221 are staggered, which effectively isolates branches and bamboo leaves while achieving ventilation and heat dissipation.

[0047] Furthermore, such as Figure 3 As shown, the first sleeve 21 includes a first tube section 212 and a second tube section 213 that are openable and closable and arranged opposite to each other; the second sleeve 22 includes a third tube section 222 and a fourth tube section 223 that are openable and closable and arranged opposite to each other. One end of the third tube section 222 and the fourth tube section 223 are hinged together, and the other end is detachably connected. The wire fixing member 1 is configured as a two-part semi-circular structure that can be opened and closed. By adopting this configuration, the insulating sleeve structure 100 can be quickly installed without power interruption.

[0048] Specifically, such as Figure 3 The diagram shows the state after the insulating sleeve component 2 and the wire fixing component 1 are opened. The first tube section 212 and the second tube section 213 are both semi-circular and not connected. The third tube section 222 and the fourth tube section 223 are also semi-circular, with one end capable of rotating around a hinge point and the other end being a free end, allowing for opening and closing. A portion of the wire fixing component 1 is connected to the first tube section 212 via a first connector 3, and the first tube section 212 is connected to the third tube section 222 via a second connector 23, thus enabling the common rotation of a portion of the wire fixing component 1, the first tube section 212, and the third tube section 222. Another portion of the wire fixing component 1 is connected to the second tube section 213 via a first connector 3, and the second tube section 213 is connected to the fourth tube section 223 via a second connector 23, thus enabling the common rotation of another portion of the wire fixing component 1, the second tube section 213, and the fourth tube section 223.

[0049] Preferably, one of the third tube section 222 and the fourth tube section 223 has a latch (not shown in the figure) on its free end, and the other has a limiting groove (not shown in the figure). The latch is accommodated in the limiting groove and connected by a fastener. The fastener is preferably a bolt or screw to achieve a detachable connection that is secure and easy to assemble and disassemble.

[0050] More preferably, the number of latches is set to multiple, and the multiple latches are spaced apart along the axial direction of the second sleeve 22; the number of limiting grooves is also set to multiple, and the multiple limiting grooves are spaced apart along the axial direction of the second sleeve 22. The multiple limiting grooves correspond one-to-one with the multiple latches, and each latch and limiting groove are connected by a fastener. In this embodiment, the number of latches and limiting grooves is preferably three, which further improves the stability of the connection between the third tube section 222 and the fourth tube section 223.

[0051] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An insulating sleeve structure, characterized in that, include: The conductor fixing component (1) is sleeved on the outside of the conductor; An insulating sleeve component (2) is arranged around the outside of the wire fixing component (1); A plurality of first connectors (3) are connected between the wire fixing member (1) and the insulating sleeve member (2), and the plurality of first connectors (3) are radially distributed with the wire fixing member (1) as the center; The insulating sleeve component (2) includes a first sleeve (21), a second sleeve (22) and a plurality of second connectors (23). The first sleeve (21) is arranged around the outside of the wire fixing component (1), the second sleeve (22) is arranged around the outside of the first sleeve (21), and the plurality of second connectors (23) are connected between the first sleeve (21) and the second sleeve (22). The first sleeve (21) includes a first tube section (212) and a second tube section (213) that are oppositely disposed and can be opened and closed; The second sleeve (22) includes a third tube section (222) and a fourth tube section (223) that are arranged opposite to each other and can be opened and closed. One end of the third tube section (222) and the fourth tube section (223) are hinged together, and the other end is detachably connected.

2. The insulating sleeve structure according to claim 1, characterized in that, The inner side of the wire fixing component (1) is provided with an anti-slip pad.

3. The insulating sleeve structure according to claim 1, characterized in that, The first sleeve (21) has a plurality of spaced first heat dissipation holes (211) on its side wall, and the second sleeve (22) has a plurality of spaced second heat dissipation holes (221) on its side wall.

4. The insulating sleeve structure according to claim 3, characterized in that, The first heat dissipation hole (211) and the second heat dissipation hole (221) are arranged alternately.

5. The insulating sleeve structure according to claim 1, characterized in that, One of the third tube section (222) and the fourth tube section (223) is provided with a buckle on its free end, and the other is provided with a limiting groove. The buckle is accommodated in the limiting groove and is connected by a fastener.

6. The insulating sleeve structure according to claim 5, characterized in that, The number of the buckles is set to multiple, and the multiple buckles are spaced apart along the axial direction of the second sleeve (22); The number of the limiting grooves is set to multiple, and the multiple limiting grooves are spaced apart along the axial direction of the second sleeve (22). The multiple limiting grooves correspond to and cooperate with the multiple buckles one by one, and each buckle is connected to the limiting groove through the fastener.

7. A power transmission wire, comprising three live wires and one neutral wire, characterized in that, It also includes an insulating sleeve structure (100) as described in any one of claims 1-6, wherein the insulating sleeve structure (100) is wrapped around the outside of each of the live wires and the neutral wires.

8. The transmission cable according to claim 7, characterized in that, A telescopic rod (200) is connected between two adjacent insulating sleeve structures (100).

Citation Information

Patent Citations

  • Heat dissipation wire

    CN214505103U