Combined power transmission line protective sleeve

By designing a combined power transmission line protection sleeve, and utilizing joint protection mechanisms and cable protection mechanisms, the problems of joint loosening and short circuits caused by thermal expansion and contraction are solved, thus achieving a stable connection and extended lifespan of the power transmission line.

CN224083114UActive Publication Date: 2026-04-03HUAZHIYUAN IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing power transmission line protective sleeves may experience loosening of joints due to thermal expansion and contraction during use, which can easily lead to wear and tear on the power transmission lines, short circuits, and explosions, thus affecting their service life.

Method used

The combined power transmission line protection sleeve includes components such as a protective sleeve shell, inner coil, wiring port, flange, conduit, line protection pipe, and high-temperature resistant layer. Through the joint protection mechanism and cable protection mechanism, the joint is fixed, heat transmission is blocked, and loosening and short circuit caused by thermal expansion and contraction are prevented.

Benefits of technology

It effectively secures the junctions of power transmission lines, preventing joint detachment and short-circuit explosions caused by thermal expansion and contraction, and extending the service life of power transmission lines.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of power transmission line protection devices, in particular to a combined type power transmission line protection sleeve. According to the technical scheme, the connector protection device comprises a protection sleeve shell and a connector protection mechanism located in the protection sleeve shell, the connector protection mechanism comprises an inner wiring coil fixed to the inner wall of the protection sleeve shell, a plurality of wiring ports are fixedly connected to the outer wall of the inner wiring coil, and an interface is formed in the inner wall of the inner wiring coil; a cable protection mechanism is arranged at the ends, away from the inner wiring coil, of the wiring ports and comprises flanges connected with the wiring ports, and the ends, away from the wiring ports, of the flanges are fixedly connected with threading pipes. The combined power transmission line protective sleeve provided by the utility model has the advantages that the problems of joint falling and short-circuit detonation caused by thermal expansion and cold contraction of the power transmission line and the power transmission line joint are prevented, the power transmission line is better protected, and the service life of the power transmission line is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of power transmission line protection devices, and in particular to a combined power transmission line protection sleeve. Background Technology

[0002] A power transmission line protective sleeve is a device used to protect power transmission lines. It is typically made of materials with insulating, wear-resistant, and corrosion-resistant properties and is placed over the power transmission line to provide protection and insulation. It generally uses materials with wear-resistant, corrosion-resistant, and UV-resistant properties, such as nylon and polyurethane. It protects the insulation layer from external environmental factors such as mechanical damage, chemical corrosion, and exposure to sunlight and rain, extending the service life of the protective sleeve. However, existing power transmission line protective sleeves only provide protection at the joints between power transmission lines using an external rubber sleeve applied during production. During the operation of the power transmission line, thermal expansion and contraction due to heat can cause the rubber sleeve to shift, leading to wear on the power transmission line, loosening of the joints, and potentially short circuits and explosions, affecting the normal operation of the power transmission line. Therefore, this application proposes a combined power transmission line protective sleeve. Utility Model Content

[0003] The purpose of this invention is to address the problem in the prior art where rubber sleeves provide poor protection, easily leading to wear and tear on power transmission lines, loosening of joints, and short circuits and explosions in power transmission lines. This invention proposes a combined power transmission line protective sleeve.

[0004] The technical solution of this utility model is: a combined power transmission line protection sleeve, including a protective sleeve shell and a connector protection mechanism located inside the protective sleeve shell. The connector protection mechanism includes an inner coil fixed to the inner wall of the protective sleeve shell. The outer wall of the inner coil is fixedly connected with multiple wiring ports, and the inner wall of the inner coil is provided with an interface.

[0005] The ends of the multiple wiring ports furthest from the internal coil are provided with cable protection mechanisms.

[0006] Optionally, the cable protection mechanism includes flanges connected to multiple wiring ports, with a conduit fixedly connected to one end of each flange away from the wiring port.

[0007] Optionally, one end of the inner wall of the plurality of conduits is fixedly connected to a guide interface, and one end of the plurality of guide interfaces is fixedly connected to a guide tube, wherein the guide interface and the guide tube are both located on the inner wall of the conduit.

[0008] Optionally, one end of each of the conduits away from the flange is threadedly connected to a line protection pipe via a threaded interface, and a connecting block is fixedly connected to the outer wall of the line protection pipe.

[0009] Optionally, the inner wall of the line protection pipe is lined with a high-temperature resistant layer, and a protective pipe is fixedly connected to the end of the line protection pipe away from the conduit.

[0010] Optionally, an internal threaded rubber ring is fixedly connected to the inner wall of the protective pipe, and one end of the internal threaded rubber ring is connected to the line protection pipe.

[0011] Optionally, the inner wall of the interface is covered with an inner anti-electric layer, and the interface is located inside the protective casing.

[0012] Compared with the prior art, this application includes at least one of the following beneficial technical effects: the power transmission line protective sleeve protects the junction of the power transmission line through the joint protection mechanism, making the junction of the power transmission line more secure and preventing the joint from falling off and short-circuiting due to thermal expansion and contraction caused by the heat of the power transmission line itself during use. In addition, the cable protection mechanism provides heat insulation and surface protection for the entire power transmission line, thereby extending the service life of the power transmission line. Attached Figure Description

[0013] Figure 1 A three-dimensional structural diagram of a combined power transmission line protective sleeve;

[0014] Figure 2 This is a schematic diagram of the internal structure of a combined power transmission line protective sleeve;

[0015] Figure 3 A schematic diagram of the line protection pipe connection structure of a combined power transmission line protection sleeve;

[0016] Figure 4 This is a schematic diagram of a cable protection mechanism for a combined power transmission line protective sleeve.

[0017] Reference numerals: 1. Protective casing; 2. Internal coil; 3. Interface; 4. Inner anti-electric layer; 5. Wiring port; 6. Flange; 7. Conduit; 8. Circuit protection pipe; 9. Threaded interface; 10. Connecting block; 11. Guide interface; 12. Guide tube; 13. High temperature and heat resistant layer; 14. Protective pipe; 15. Internal threaded rubber ring. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0019] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0020] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1

[0025] like Figure 1 and Figure 2As shown, the present invention proposes a combined power transmission line protection sleeve, including a protective sleeve shell 1 and a connector protection mechanism located inside the protective sleeve shell 1. The connector protection mechanism includes an inner coil 2 fixed to the inner wall of the protective sleeve shell 1. Multiple wiring ports 5 are fixedly connected to the outer wall of the inner coil 2, and an interface 3 is opened on the inner wall of the inner coil 2. An inner anti-electric layer 4 is laid on the inner wall of the interface 3, and the interface 3 is located inside the protective sleeve shell 1. By setting the protective sleeve shell 1, the wiring position inside is protected. The inner coil 2 prevents the heat generated by the current transmission at the connector from being transferred to the protective sleeve shell 1 and affecting the protective sleeve shell 1. The inner anti-electric layer 4 made of polyvinyl chloride (PVC) is set to prevent the internal connector from overheating and causing the line to explode.

[0026] In addition, such as Figure 2 , Figure 3 and Figure 4 As shown, a cable protection mechanism is provided at the end of multiple connection ports 5 away from the inner coil 2. The cable protection mechanism includes a flange 6 connected to the multiple connection ports 5. By setting the flange 6, multiple conduits 7 can be connected to the connection ports 5. The conduits 7 are fixedly connected to the end of the multiple flanges 6 away from the connection ports 5. A guide interface 11 is fixedly connected to one end of the inner wall of the multiple conduits 7. A guide tube 12 is fixedly connected to one end of the multiple guide interfaces 11. The guide interfaces 11 and guide tubes 12 are both located on the inner wall of the conduits 7. By setting the guide interfaces 11 and guide tubes 12, the connection of the power transmission line connector is more convenient, and the wire can be directly guided through the guide interfaces 11 and guide tubes 12.

[0027] It should be added that, such as Figure 3 and Figure 4 As shown, multiple conduits 7 are threaded to a line protection pipe 8 at the end furthest from the flange 6 via a threaded interface 9. A connecting block 10 is fixedly connected to the outer wall of the line protection pipe 8, and a high-temperature resistant layer 13 is laid on the inner wall of the line protection pipe 8. By setting up the line protection pipe 8, when the line is short-circuited and burned, the heat can be transferred to the position of the line protection pipe 8, where it is flame-retardant by the high-temperature resistant layer 13 made of glass fiber reinforced plastic, thus protecting the safety of the line. A protective pipe 14 is fixedly connected to the end of the line protection pipe 8 furthest from the conduit 7. An internal threaded rubber ring 15 is fixedly connected to the inner wall of the protective pipe 14, and one end of the internal threaded rubber ring 15 is connected to the line protection pipe 8. By setting up the internal threaded rubber ring 15, the outer surface of the transmission line is protected from corrosion by external factors.

[0028] In this embodiment, multiple transmission lines that need to be connected are passed through the protective conduit 14 into the device. The internal threaded rubber ring 15 on the inner wall of the protective conduit 14 protects the outer surface of the transmission lines. The transmission lines enter the line protection pipe 8, and the conduit 7 connected to one side of the line protection pipe 8 guides the transmission line joints. When a short circuit occurs and the line burns out, the heat is transferred to the line protection pipe 8 and is flame-retarded by the high-temperature resistant and heat-resistant layer 13 made of glass fiber reinforced plastic, thus protecting the line safety. The conduit 7, the internal guide interface 11, and the guide pipe 12 guide the joints to the inner coil 2 on the inner wall of the protective casing 1 for splicing. The interface 3 and the inner wall of the interface 3 are covered with an inner anti-electric layer 4 made of polyvinyl chloride (PVC) to prevent the internal joints from overheating and causing the line to explode, thus protecting the transmission lines.

[0029] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A combined power line protection sleeve comprising a protection sleeve housing (1) and a joint protection mechanism located inside the protection sleeve housing (1), characterized in that: The joint protection mechanism comprises an inner connecting coil (2) fixed to the inner wall of the protective sleeve shell (1), an outer wall of the inner connecting coil (2) is fixedly connected with a plurality of connecting ports (5), and an inner wall of the inner connecting coil (2) is provided with an interface (3); A plurality of the connecting ports (5) are provided with cable protection mechanisms away from one end of the inner connecting coil (2).

2. A combination power line protection sleeve as defined in claim 1, wherein, The cable protection mechanism comprises a flange (6) connected with the plurality of connecting ports (5), and a plurality of the flanges (6) are fixedly connected with threading pipes (7) away from one end of the connecting ports (5).

3. A composite power line protection sleeve according to claim 2, wherein, A plurality of the threading pipes (7) are fixedly connected with guide interfaces (11) at one end of the inner wall, a plurality of the guide interfaces (11) are fixedly connected with guide pipes (12) at one end, and the guide interfaces (11) and the guide pipes (12) are located on the inner wall of the threading pipes (7).

4. A combination power line protection sleeve according to claim 2, wherein, A plurality of the threading pipes (7) are threadedly connected with line protection pipes (8) away from one end of the flanges (6) through threaded interfaces (9), and an outer wall of the line protection pipe (8) is fixedly connected with a connecting block (10).

5. A composite power line protection sleeve according to claim 4, wherein, An inner wall of the line protection pipe (8) is paved with a high-temperature-resistant layer (13), and the line protection pipe (8) is fixedly connected with a protective pipeline (14) away from one end of the threading pipe (7).

6. A composite power line protection sleeve according to claim 5, wherein, An inner wall of the protective pipeline (14) is fixedly connected with an internal threaded rubber ring (15), and one end of the internal threaded rubber ring (15) is connected with the line protection pipe (8).

7. A combination power line protection sleeve as defined in claim 1, wherein, An inner wall of the interface (3) is paved with an internal anti-electricity layer (4), and the interface (3) is located in the interior of the protective sleeve shell (1).