A protective structure for a wiring connection

By combining a beveled triangular nylon plug with a spring limit block, along with a threaded rod and sealing ring design, the problems of stability, sealing, and compatibility at traditional wiring points are solved, improving the stability, sealing, and compatibility of the wiring points and extending the service life of the equipment.

CN224555182UActive Publication Date: 2026-07-24HEBEI CONSTRUCTION GROUP CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI CONSTRUCTION GROUP CO LTD
Filing Date
2025-08-27
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Traditional wiring connections suffer from insufficient structural stability, poor sealing, and inadequate adaptability and ease of operation, making it difficult to meet the demands of complex environments and high-quality power consumption.

Method used

The cable is protected by a combination of a beveled triangular nylon plug and a spring limit block, along with a threaded rod and a sealing ring design, forming a multi-layered protective structure to ensure cable stability and sealing. It can also be adapted to different cable specifications through a cable distribution plate.

Benefits of technology

Significant improvements have been made in the stability, sealing, and compatibility of the wiring connections, enhancing the equipment's corrosion resistance and lifespan. It is adaptable to various wire connection scenarios and is more convenient to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a protection structure at wiring, including first sleeve, one end of first sleeve is provided with second sleeve, is provided with first branch line tray, second branch line tray respectively in first sleeve, second sleeve, be provided with first step in first sleeve, first step is connected with first branch line tray, be provided with second step outside first sleeve, be provided with third step in second sleeve, second branch line tray is connected with third step, still be provided with fourth step in second sleeve, first sleeve and second sleeve are connected at fourth step, the utility model discloses a protection structure at wiring above, solves traditional structure firmness deficiency, and the technical problem such as poor sealing, poor adaptability and poor operation convenience.
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Description

Technical Field

[0001] This utility model relates to the electrical field, and in particular to a protective structure for wiring connections. Background Technology

[0002] In the operation of power systems and various electrical equipment, the stability and safety of wiring connections are crucial. Traditional wiring connection protection structures have many problems and are difficult to meet the increasingly complex environments and high-quality power demands. For example, common junction boxes often have poor sealing performance. In harsh environments such as humidity and dust, external moisture, dust, and other impurities can easily penetrate, leading to short circuits and corrosion at the wiring connections, affecting the normal operation of electrical equipment, and in severe cases, even causing safety accidents. Furthermore, traditional wiring structures have poor adaptability to different cable specifications, making operation inconvenient and construction efficiency low when dealing with complex wiring scenarios involving various types of wires. Utility Model Content

[0003] The purpose of this utility model is to provide a protective structure for the wiring point, which solves the technical problems of insufficient stability, poor sealing, poor adaptability and ease of operation of traditional structures.

[0004] To achieve the above objectives, this utility model provides a protective structure for a wiring terminal, including a first sleeve, a second sleeve at one end of the first sleeve, a first wire divider and a second wire divider respectively disposed inside the first sleeve and the second sleeve, a first step disposed inside the first sleeve, the first step being connected to the first wire divider, and a second step disposed outside the first sleeve. The second sleeve has a third step inside, and the second branch plate is connected to the third step. The second sleeve also has a fourth step inside, and the first sleeve and the second sleeve are connected at the fourth step.

[0005] Preferably, both the first sleeve and the second sleeve are provided with openings, and at least two openings are provided. A first connecting rod is provided in each opening, a spring is sleeved on the first connecting rod, a first limiting block is provided at one end of the first connecting rod, and a second limiting block is provided at the other end of the first connecting rod. The first limiting block is connected to one end of the spring, and the other end of the spring is connected to the inner wall of the first sleeve and the second sleeve.

[0006] Preferably, the first block is made of an elasto-plastic material.

[0007] Preferably, the first sleeve is provided with a first connecting plate, the second sleeve is provided with a second connecting plate, both the first and second connecting plates are provided with connecting holes, a threaded rod is provided in the connecting hole, and nuts are sleeved at both ends of the threaded rod.

[0008] Preferably, the first sleeve is further provided with anti-slip protrusions, which are located at the connection between the first sleeve and the second sleeve.

[0009] Preferably, a first sealing ring is provided between the first sleeve and the second sleeve.

[0010] Preferably, a second sealing ring is provided at the other end of both the first sleeve and the second sleeve. The outer diameter of the second sealing ring is equal to the inner diameter of the first sleeve and the second sleeve, and the inner diameter of the second sealing ring is set according to the diameter of the cable.

[0011] Therefore, the present invention adopts the above-mentioned protective structure for the wiring point, and the technical effects are as follows: The stability is ensured through multiple safeguards. Firstly, the first obliquely triangular nylon plug utilizes the high friction of the elasto-plastic material to firmly restrict cable movement through the clamping space formed by the two plugs, preventing cable loosening at the interface source. Secondly, the first and second sleeves are connected by threaded rods and nuts on the first and second connecting plates, and with the mating design at the fourth step, form a rigid fixing structure, effectively resisting sleeve separation caused by external forces. Simultaneously, the combination of a spring and a limiting block on the first connecting rod can absorb external impacts through elastic buffering, preventing displacement of the internal cable interface due to vibration. This triple protection ensures the overall structure remains stable even in complex environments. The sealing performance reaches a level of stringent protection. The second sealing ring adopts an outer diameter design that matches the inner diameter of the sleeve, and the inner diameter can be customized according to the cable diameter, forming a tight-fitting first sealing barrier with the cable. The first sealing ring on the first sleeve and the anti-slip protrusions at the joint form a second seal, enhancing the sealing performance at the interface through physical compression. In addition, the precise docking of the first and second branching reels further reduces the airflow exchange channels between the inside and the outside. The synergistic effect of the multiple sealing structures effectively prevents the intrusion of dust, moisture, and other impurities, significantly improving the corrosion resistance and aging resistance of the connection point. Adaptability and scenario compatibility are significantly improved. The custom-designed shape of the second sealing ring can accommodate cables of different diameters, while the branching hole design of the first and second branching discs can meet the needs of bundling multiple wires, enabling orderly arrangement of both single cables and complex multi-core cables. Simultaneously, the first connecting rod assembly at the opening can adapt to changes in external force within a certain range through spring extension and contraction, allowing the structure to maintain normal operation under conditions such as temperature changes and slight vibrations, greatly expanding its applicable scenarios. The structural reliability meets long-term usage requirements. Targeted material selection for each component, such as the wear resistance of nylon plugs and the fatigue resistance of springs, ensures stable performance of core components during long-term use. The limiting block design of the first connecting rod prevents excessive spring extension and contraction leading to failure, and the rigid connection between the distributor plate and the step prevents misalignment of the distributor holes from affecting wiring stability. Furthermore, the redundant design of the multiple protective structures ensures that even with minor damage to one component, the overall system can still maintain basic protective functions, significantly extending the equipment's service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a protective structure for a wiring connection according to the present invention; Figure 2 This is a schematic diagram of the second sleeve; Figure 3 This is a schematic diagram of the first casing; Figure 4 This is a partial schematic diagram of a protective structure at a wiring point.

[0013] Figure Labels 1. First sleeve; 11. First step; 12. Second step; 2. Second sleeve; 21. Third step; 22. Fourth step; 3. First distributor plate; 4. Second distributor plate; 5. First connecting rod; 6. Spring; 7. First limiting block; 8. Second limiting block; 9. First connecting plate; 10. Second connecting plate; 11. Threaded rod; 12. Nut; 13. Anti-slip protrusion; 14. First sealing ring; 15. Second sealing ring. Detailed Implementation

[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0015] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0016] Example 1 like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a protective structure for a connection point includes a first sleeve 1 and a second sleeve 2 disposed at one end of the first sleeve 1. A second sealing ring 15 is provided at the other end of both the first sleeve 1 and the second sleeve 2. The outer diameter of the second sealing ring 15 is equal to the inner diameter of the first sleeve 1 and the second sleeve 2. The inner diameter of the second sealing ring 15 is set according to the diameter of the cable and can be customized according to actual needs. The cable passes through the second sealing ring 15 and enters the first sleeve 1 and the second sleeve 2.

[0017] Both the first sleeve 1 and the second sleeve 2 are provided with openings. There are at least two openings. In this embodiment, there are two openings in relative positions. A first connecting rod 5 is provided in the opening. A spring 6 is sleeved on the first connecting rod 5. A first limiting block 7 is provided at one end of the first connecting rod 5. A second limiting block 8 is provided at the other end of the first connecting rod 5. The first limiting block 7 is connected to one end of the spring 6, and the other end of the spring 6 is connected to the inner wall of the first sleeve 1 and the second sleeve 2. The first blocking block is made of an elastic-plastic material, preferably nylon.

[0018] The first block is a beveled triangle or wedge shape. In this embodiment, it is a beveled triangle. When the cable passes through the space formed by the two first blocks, the cable is not easy to move due to the large friction of the elastic-plastic material, thus ensuring the stability of the cable interface.

[0019] The first sleeve 1 and the second sleeve 2 are respectively provided with a first splitter disc 3 and a second splitter disc 4. The outer rings of the first splitter disc 3 and the second splitter disc 4 are both provided with a convex ring. The first sleeve 1 is provided with a first step 11, which is connected to the first splitter disc 3. The outer side of the first sleeve 1 is provided with a second step 12. The second sleeve 2 is provided with a third step 21, and the second branch plate 4 is connected to the third step 21. The second sleeve 2 is also provided with a fourth step 22, and the first sleeve 1 and the second sleeve 2 are connected at the fourth step 22.

[0020] The first dividing plate 3 and the second dividing plate 4 are fixed at the first step 11 and the third step 21, respectively.

[0021] After the cable passes through the space formed by the two first blocking blocks, the cable is first bundled. Each wire of the bundled cable passes through the splitting hole set on the first splitting plate 3 and the second splitting plate 4, and is connected to each wire of the two cables respectively.

[0022] After the two cables are connected, a first sealing ring 14 is fitted onto the first sleeve 1, and the first sleeve 1 and the second sleeve 2 are then joined together. The first sleeve 1 is also provided with anti-slip protrusions 13, located at the connection point between the first sleeve 1 and the second sleeve 2. Both the first sealing ring 14 and the anti-slip protrusions 13 ensure the sealing of the cable interface.

[0023] The first sleeve 1 is provided with a first connecting plate 9, and the second sleeve 2 is provided with a second connecting plate 10. Both the first connecting plate 9 and the second connecting plate 10 are provided with connecting holes, and threaded rods 11 are provided in the connecting holes. Nuts 12 are fitted at both ends of the threaded rods 11.

[0024] After the protective structure at the wiring point is sealed, it is connected by the first connecting plate 9 and the second connecting plate 10 to further ensure the stability of the first sleeve 1 and the second sleeve 2.

[0025] Therefore, this utility model adopts the above-mentioned protective structure for the wiring point. Through various innovative designs, it has achieved significant improvements in terms of stability, sealing, adaptability, ease of operation and overall reliability, and has outstanding technical advantages.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A protective structure for a wiring connection, characterized in that, It includes a first sleeve, a second sleeve is provided at one end of the first sleeve, a first splitter plate and a second splitter plate are respectively provided in the first sleeve and the second sleeve, a first step is provided in the first sleeve and the first step is connected to the first splitter plate, and a second step is provided on the outside of the first sleeve. The second sleeve has a third step inside, and the second branch plate is connected to the third step. The second sleeve also has a fourth step inside, and the first sleeve and the second sleeve are connected at the fourth step.

2. The protective structure for a wiring connection according to claim 1, characterized in that, Both the first sleeve and the second sleeve are provided with openings, and there are at least two openings. A first connecting rod is provided in each opening. A spring is sleeved on the first connecting rod. A first limiting block is provided at one end of the first connecting rod, and a second limiting block is provided at the other end of the first connecting rod. The first limiting block is connected to one end of the spring, and the other end of the spring is connected to the inner wall of the first sleeve and the second sleeve.

3. The protective structure for a wiring connection according to claim 2, characterized in that, The first limiting block is made of an elastic-plastic material.

4. The protective structure for a wiring connection according to claim 1, characterized in that, The first sleeve is provided with a first connecting plate, and the second sleeve is provided with a second connecting plate. Both the first and second connecting plates are provided with connecting holes, and a threaded rod is provided in the connecting hole. Nuts are sleeved on both ends of the threaded rod.

5. The protective structure for a wiring connection according to claim 1, characterized in that, The first sleeve is also provided with anti-slip protrusions, which are located at the connection between the first sleeve and the second sleeve.

6. The protective structure for a wiring terminal according to claim 1, characterized in that, A first sealing ring is provided between the first sleeve and the second sleeve.

7. The protective structure for a wiring connection according to claim 1, characterized in that, The other end of the first sleeve and the second sleeve is provided with a second sealing ring. The outer diameter of the second sealing ring is equal to the inner diameter of the first sleeve and the second sleeve. The inner diameter of the second sealing ring is set according to the diameter of the cable.