A multi-layer insulated moisture-proof cable joint

Abstract

The utility model relates to cable joint field discloses a kind of multi-layer insulation damp-proof cable joints, including cable joint shell, the right end of the cable joint shell is fixedly connected with first connecting piece, the outer wall of the first connecting piece is fixedly connected with clamping piece in both sides, the inner wall of the clamping piece is provided with clamping position assembly, the clamping piece is connected with round groove by clamping position assembly, the inner wall of the round groove is fixedly connected with second connecting piece, the inner wall of the second connecting piece is fixedly connected with another cable joint shell, the inner wall of the cable joint shell is installed with outer waterproof layer, the inner wall of the outer waterproof layer is fixedly connected with middle insulating layer, the inner wall of the middle insulating layer is fixedly connected with auxiliary sealing layer.In the utility model, by clamping position assembly, fixed cable joint, prevent loosening, connect two sections of cable, so that installation and disassembly process are more convenient, without using extra tool, greatly improve work efficiency, effectively reduce contact resistance.

Description

Technical Field

[0001] This utility model relates to the field of cable joints, and more particularly to a multi-layered insulated and moisture-proof cable joint. Background Technology

[0002] In modern power systems, communication networks, and industrial automation, cables serve as crucial carriers of electrical energy and signals, and their connection quality directly impacts the operational safety and stability of the entire system. Cable joints, as vital components connecting cables to equipment and between cables themselves, not only affect the stable transmission of current but also directly determine the safety and reliability of the system in complex environments. Currently, traditional cable joints mostly adopt a single-layer structure. Although they have certain insulation and protection performance in normal temperature and dry environments, they are prone to problems such as decreased insulation performance, water vapor penetration, and accelerated aging under harsh environmental conditions such as humidity, rain, salt spray, and ultraviolet radiation. This can lead to short circuits, leakage, or even burnout of the joint, affecting the normal operation of the entire system. As a result, they still have certain limitations in terms of moisture resistance, mechanical strength, and weather resistance. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-layered insulating and moisture-proof cable connector. Through a locking assembly, the cable connector is fixed to prevent loosening, and the two cable sections are connected to ensure a reliable electrical connection.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A multi-layered insulating and moisture-proof cable connector includes a cable connector housing. A first connector is fixedly connected to the right end of the cable connector housing. Clamping elements are fixedly connected to the upper and lower sides of the outer wall of the first connector. A locking assembly is provided on the inner wall of the clamping element. The clamping element is connected to a circular groove via the locking assembly. A second connector is fixedly connected to the inner wall of the circular groove. Another cable connector housing is fixedly connected to the inner wall of the second connector. An outer waterproof layer is installed on the inner wall of the cable connector housing. An intermediate insulating layer is fixedly connected to the inner wall of the outer waterproof layer. An auxiliary sealing layer is fixedly connected to the inner wall of the intermediate insulating layer. An inner insulating layer is fixedly connected to the inner wall of the auxiliary sealing layer. The inner wall of the inner insulating layer is used to install and fix the cable.

[0005] Furthermore, the locking assembly includes a threaded rod threadedly connected to the inner wall of the locking member, a handle fixedly connected to the right end of the outer wall of the threaded rod, the handle being used to drive the threaded rod to rotate, and a first sealing ring fixedly connected to the bottom end of the locking member, the inner wall of the first sealing ring being fixedly connected to the outer wall of the first connecting member.

[0006] Furthermore, a slot is provided on the right end of the inner wall of the card, the slot being configured to engage the second sealing ring, and a circular groove is provided on the inner wall of the second sealing ring, the size of which is adapted to the threaded rod.

[0007] Furthermore, the cable connector shell is made of high-strength polyurethane plastic to prevent direct intrusion of external physical impacts, ultraviolet rays, and corrosive substances.

[0008] Furthermore, the outer waterproof layer is made of heat-shrink tubing to prevent external moisture, rainwater, humidity, etc. from entering the joint.

[0009] Furthermore, the intermediate insulation layer is made of polyethylene to provide additional insulation protection and prevent the cable from breaking down due to excessive voltage during use.

[0010] Furthermore, the auxiliary sealing layer is made of sealing tape to provide a more resilient seal, accommodating slight displacement and temperature changes in the cable.

[0011] Furthermore, the inner insulation layer is made of cross-linked polyethylene and is used to wrap the cable conductor, providing basic insulation and protecting the conductor from external influences.

[0012] This utility model has the following beneficial effects: 1. In this utility model, the cable connector is fixed by the locking component to prevent loosening and connect the two cable sections, making the installation and disassembly process simpler, requiring no additional tools, greatly improving work efficiency, effectively reducing contact resistance, and further enhancing the stability of the electrical connection.

[0013] 2. In this utility model, through multi-layer insulation and moisture-proof design, moisture intrusion is effectively blocked, the moisture-proof performance of the cable joint is improved, and a stable electrical connection is maintained in a humid environment, thus extending the service life. Attached Figure Description

[0014] Figure 1 This is a perspective view of a multi-layer insulated moisture-proof cable connector proposed in this utility model; Figure 2 This invention relates to a second sealing ring for a multi-layered insulating and moisture-proof cable connector. Figure 3 This is a cross-sectional view of the cable connector shell of a multi-layer insulated moisture-proof cable connector proposed in this utility model.

[0015] Legend: 1. Cable connector housing; 2. First connector; 3. Clip; 4. First sealing ring; 5. Second sealing ring; 6. Threaded rod; 7. Handle; 8. Second connector; 9. Circular groove; 10. Slot; 11. Outer waterproof layer; 12. Intermediate insulation layer; 13. Auxiliary sealing layer; 14. Inner insulation layer. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figures 1-3 This utility model provides an embodiment of a multi-layered insulating moisture-proof cable connector, comprising a cable connector shell 1 made of high-strength polyurethane plastic to prevent direct intrusion of external physical impact, ultraviolet rays, and corrosive substances. A first connecting member 2 is fixedly connected to the right end of the cable connector shell 1. Clamping members 3 are fixedly connected to both the upper and lower sides of the outer wall of the first connecting member 2. A locking assembly is provided on the inner wall of the clamping member 3. The clamping member 3 is connected to a circular groove 9 through the locking assembly. The locking assembly includes a threaded rod 6 threaded to the inner wall of the clamping member 3. A handle 7 is fixedly connected to the right end of the outer wall of the threaded rod 6, which is used to rotate the threaded rod 6. A first sealing ring 4 is fixedly connected to the bottom end of the clamping member 3. The inner wall of the first sealing ring 4 is fixedly connected to the outer wall of the first connecting member 2. A groove 10 is provided on the right end of the inner wall of the clamping member 3, configured to engage a second sealing ring 5. A circular groove 9 is provided on the inner wall of the second sealing ring 5, the size of which is adapted to the threaded rod 6. A second connector 8 is fixedly connected to the inner wall of connector 9. Another cable connector housing 1 is fixedly connected to the inner wall of the second connector 8. An outer waterproof layer 11 is installed on the inner wall of the cable connector housing 1. The outer waterproof layer 11 is made of heat shrink tubing and is used to prevent external moisture, rainwater, and humidity from entering the connector. An intermediate insulation layer 12 is fixedly connected to the inner wall of the outer waterproof layer 11. The intermediate insulation layer 12 is made of polyethylene and is used to provide additional insulation protection to prevent the cable from breaking down due to excessive voltage during use. An auxiliary sealing layer 13 is fixedly connected to the inner wall of the intermediate insulation layer 12. The auxiliary sealing layer 13 is made of sealing tape and is used to further provide elastic sealing to adapt to slight displacement and temperature changes of the cable. An inner insulation layer 14 is fixedly connected to the inner wall of the auxiliary sealing layer 13. The inner wall of the inner insulation layer 14 is used to install and fix the cable. The inner insulation layer 14 is made of cross-linked polyethylene and is used to wrap the cable conductor, providing basic insulation and protecting the conductor from external influences.

[0018] Specifically, during the cable connector connection process, the second connector 8 is first tightly fitted against the outer wall of the first connector 2, ensuring complete contact without gaps. Then, by rotating the second connector 8, the second sealing ring 5 on its outer side rotates synchronously, gradually sliding into the slot 10 of the retaining member 3. This retaining member 3 is typically an annular structure with a slot 10 that matches the second sealing ring 5. Through rotation, the second sealing ring 5 is engaged in the slot 10, forming the first sealing barrier, effectively preventing the intrusion of external moisture and contaminants, laying the foundation for the subsequent sealing structure. After the second sealing ring 5 is fully embedded in the slot 10, the threaded rod 6 is further rotated to... A secure connection is formed between the threaded rod 6, the first connector 2, and the second connector 8. The end of the threaded rod 6 is designed with a circular groove 9, which nests with the second sealing ring 5. This not only ensures that the threaded rod 6 will not damage the sealing ring during installation but also ensures that it will not loosen due to vibration or external force during long-term use, thus maintaining the stability of the sealing structure. Furthermore, the second connector 8 further enhances the mechanical strength of the entire connector structure during rotation, ensuring its reliability and durability in various complex environments. After sealing and fixing the connectors, an outer waterproof layer 11 is installed on the outside of the entire cable connector. This waterproof layer is typically made of heat-shrink tubing, which has good heat-shrink properties. The heat-shrink tubing exhibits excellent performance and elasticity, allowing it to tightly conform to the surface of the cable joint shell 1, forming a complete waterproof barrier. After heat treatment, the heat-shrink tubing rapidly shrinks, forming a tight seal with the joint shell, effectively isolating external moisture and humidity from intrusion and preventing water vapor from seeping into the internal structure along the joint, thereby improving the overall moisture-proof performance of the cable joint. The intermediate insulation layer 12 is made of polyethylene material, which has excellent insulation properties and good mechanical strength, effectively preventing cable breakdown under high voltage. This insulation layer can not only withstand high operating voltages but also has certain heat resistance and aging resistance, adapting to the long-term operating requirements of various complex environments and providing stable and reliable electrical protection for the cable system. Furthermore, in the intermediate... An auxiliary sealing layer 13 is provided between the insulation layer 12 and the outer waterproof layer 11. It is usually made of elastic sealing tape or silicone rubber. This sealing layer can automatically adjust the sealing structure according to the slight displacement and temperature changes of the cable during installation or use, thereby compensating for the sealing gap caused by thermal expansion and contraction or external force, and further enhancing the overall sealing effect and structural stability. Finally, an inner insulation layer 14 is provided at the innermost layer of the cable conductor. It is usually made of cross-linked polyethylene material, which has excellent electrical insulation performance and high temperature resistance. This insulation layer directly wraps the cable conductor, which can not only effectively prevent current leakage, but also withstand high operating temperature and mechanical stress, ensuring the safety and reliability of the cable during long-term operation.

[0019] Working principle: After the second connector 8 is attached to the outer wall of the first connector 2, it is rotated so that the second connector 8, along with the second sealing ring 5, is inserted into the clamp 3. Then, by rotating the threaded rod 6, the first connector 2 and the second connector 8 are connected, so that the second sealing ring 5 is embedded in the groove 10, forming the first sealing barrier. The design of the circular groove 9 ensures that the threaded rod 6 can be firmly fixed in the second sealing ring 5. At the same time, the second connector 8 further enhances the stability of the overall structure. The outer waterproof layer 11 tightly adheres to the cable joint shell 1 through the characteristics of heat shrink tubing, effectively isolating external moisture and humidity. The middle insulation layer 12 utilizes the high insulation performance of polyethylene material to provide additional protection for the cable and prevent the risk of breakdown caused by excessive voltage. The auxiliary sealing layer 13 adapts to the small displacement and temperature changes of the cable through the elasticity of the sealing tape, thereby enhancing the sealing effect. The inner insulation layer 14 directly wraps the cable conductor, and through the excellent insulation performance of cross-linked polyethylene, it ensures the safety and reliability of the cable in long-term use.

[0020] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-layered insulating moisture-proof cable joint, comprising a cable joint housing (1), characterized in that: The right end of the cable connector housing (1) is fixedly connected to a first connector (2). The upper and lower sides of the outer wall of the first connector (2) are fixedly connected to clips (3). The inner wall of the clip (3) is provided with a positioning component. The clip (3) is connected to the circular groove (9) through the positioning component. The inner wall of the circular groove (9) is fixedly connected to a second connector (8). The inner wall of the second connector (8) is fixedly connected to another cable connector housing (1). The inner wall of the cable connector housing (1) is equipped with an outer waterproof layer (11). The inner wall of the outer waterproof layer (11) is fixedly connected to an intermediate insulation layer (12). The inner wall of the intermediate insulation layer (12) is fixedly connected to an auxiliary sealing layer (13). The inner wall of the auxiliary sealing layer (13) is fixedly connected to an inner insulation layer (14). The inner wall of the inner insulation layer (14) is used to install and fix the cable.

2. The multi-layer insulated moisture-proof cable joint according to claim 1, characterized in that: The locking assembly includes a threaded rod (6) threaded to the inner wall of the locking piece (3), and a handle (7) fixedly connected to the right end of the outer wall of the threaded rod (6). The handle (7) is used to drive the threaded rod (6) to rotate. A first sealing ring (4) is fixedly connected to the bottom end of the locking piece (3), and the inner wall of the first sealing ring (4) is fixedly connected to the outer wall of the first connector (2).

3. A multi-layer insulated moisture-proof cable joint according to claim 2, characterized in that: The inner wall of the clip (3) has a slot (10) on the right end, the slot (10) is configured to engage the second sealing ring (5), the inner wall of the second sealing ring (5) has a circular groove (9), the size of the circular groove (9) is adapted to the threaded rod (6).

4. A multi-layer insulated moisture-proof cable joint according to claim 1, characterized in that: The cable connector housing (1) is made of high-strength plastic polyurethane to prevent direct intrusion of external physical impacts, ultraviolet rays, and corrosive substances.

5. A multi-layer insulated moisture-proof cable joint according to claim 1, characterized in that: The outer waterproof layer (11) is made of heat shrink tubing and is used to prevent external moisture, rainwater and humidity from entering the joint.

6. A multi-layer insulated moisture-proof cable joint according to claim 1, characterized in that: The intermediate insulation layer (12) is made of polyethylene and is used to provide additional insulation protection to prevent the cable from breaking down due to excessive voltage during use.

7. A multi-layer insulated moisture-proof cable joint according to claim 1, characterized in that: The auxiliary sealing layer (13) is made of sealing tape and is used to further provide an elastic seal to accommodate slight displacement and temperature changes of the cable.

8. A multi-layer insulated moisture-proof cable joint according to claim 1, characterized in that: The inner insulation layer (14) is made of cross-linked polyethylene and is used to wrap the cable conductor, providing basic insulation and protecting the conductor from external influences.

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