Connecting structure of separable connector
By setting a combination structure of fixing ring, limiting hole and spring on the plug, the problem of inconvenient maintenance of existing connectors is solved, and the plug is reliably fixed to the ring main unit and convenient for maintenance is realized.
Patent Information
- Application Number
- CN202423049736.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-11
AI Technical Summary
The existing detachable connectors, when the plug is fixed to the ring main unit, cannot be replaced or repaired in a timely manner due to the silicone grease application connection method, resulting in inconvenience in maintenance.
The device employs a combination structure of a fixing ring, a limiting hole, a spring, and a limiting block. The spring's extension force ensures reliable fixation of the plug to the ring main unit, and the plug can be directly unplugged for repair in case of damage.
This improves the ease of connector maintenance, enabling reliable fixing and convenient maintenance of the plug to the ring main unit.
Smart Images

Figure CN223502302U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, and in particular to a connection structure for a detachable connector. Background Technology
[0002] Ring main units primarily connect power supply cables and branch cables to provide electricity to users. Their small size allows them to fit buildings of various sizes, enabling long-term stable power supply and infrequent high-voltage switching operations. Therefore, ring main units are widely used in residential buildings, public places, factory buildings, and especially in medium and small capacity substations.
[0003] Existing detachable connectors use silicone grease applied to the plug's socket to secure it inside the ring main unit. However, this silicone grease application method cannot facilitate timely replacement and maintenance. Therefore, a detachable connector connection structure is needed. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a connection structure for a detachable connector.
[0005] This utility model is achieved by the following technical solution: a connection structure for a detachable connector, including a main body mechanism, a fixing mechanism inside the main body mechanism, and a connecting mechanism inside the main body mechanism;
[0006] The main body includes a plug, a fixing ring is fixedly connected to the left side of the plug, a limiting hole is opened on the surface of the fixing ring, a spring is fixedly connected to the inner wall of the limiting hole, a limiting block is fixedly connected to the top of the spring, and a through hole is opened on the left side of the plug.
[0007] With the above technical solution, a fixing ring is provided on the left side of the plug. The size of the fixing ring is slightly smaller than the size of the through hole on the left side of the plug. Multiple limiting holes are provided on the surface of the fixing ring, and a corresponding spring and limiting block are installed in each limiting hole.
[0008] As a further improvement to the above solution, a plurality of limiting holes are provided, and the plurality of limiting holes are distributed at equal distances; a plurality of springs are provided, and the plurality of springs are distributed at equal distances; and a plurality of limiting blocks are provided, and the plurality of limiting blocks are distributed at equal distances.
[0009] With the above technical solution, after the internal structure of the plug is assembled, the end with the retaining ring will be aligned with the slot of the external ring main unit for fixation. When the plug is pushed to insert the retaining ring inward, the limiting block will be compressed inward by the pressure of the external slot through the spring, thereby inserting the retaining ring. However, the extension force of the spring will also cause the limiting block to press against the inner wall of the external slot, thereby fixing the plug to the ring main unit. Furthermore, if damage occurs, the plug can be directly unplugged for repair, improving the maintenance convenience of the connector.
[0010] As a further improvement to the above solution, the fixing mechanism includes a stress cone, which is sleeved on the inner wall of the plug, and a cable is sleeved on the inner wall of the stress cone.
[0011] With the above technical solution, when the cable is combined with the stress cone, the surface layer of the cable will be cut and polished first in order to better fix the conductivity.
[0012] As a further improvement to the above scheme, the stress cone is composed of a black semiconductor and a transparent insulator.
[0013] As a further improvement to the above solution, the connection mechanism includes a terminal, which is sleeved on the top of the cable, and a connector is fixedly connected to the top of the terminal.
[0014] With the above technical solution, when the stress cone carrying the cable is inserted from the bottom of the plug, the connector at the top of the terminal will be placed horizontally inside the perforation.
[0015] As a further improvement to the above solution, the terminal is made of aluminum.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] This invention features a retaining ring on the left side of the plug, slightly smaller than the through hole on the left side of the connector. Multiple limiting holes are provided on the surface of the retaining ring, each containing a corresponding spring and a limiting block. After the internal cables, terminals, and stress cone structure of the plug are assembled, the end with the retaining ring aligns with the slot of the external ring main unit for fixation. When the plug is pushed in, causing the retaining ring to insert, the limiting block is compressed inward by the spring under the pressure of the external slot, thus inserting the retaining ring. However, the spring's extension force also causes the limiting block to press against the inner wall of the external slot, thereby fixing the plug to the ring main unit. Furthermore, if damage occurs, the plug can be directly unplugged for repair, improving the ease of maintenance of this connector. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the fixing ring structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the limiting block structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the stress cone structure of this utility model;
[0022] Figure 5 This is a schematic diagram of the terminal structure of this utility model.
[0023] Explanation of key symbols:
[0024] 1. Main body mechanism; 101. Plug; 102. Fixing ring; 103. Limiting hole; 104. Spring; 105. Limiting block; 106. Through hole; 2. Fixing mechanism; 201. Stress cone; 202. Cable; 3. Connecting mechanism; 301. Terminal; 302. Connector. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0026] Example:
[0027] Please combine Figure 1-5 The connection structure of a detachable connector in this embodiment includes a main body mechanism 1, a fixing mechanism 2 and a connecting mechanism 3 inside the main body mechanism 1.
[0028] The main body 1 includes a plug 101. A retaining ring 102 is fixedly connected to the left side of the plug 101. A limiting hole 103 is formed on the surface of the retaining ring 102. A spring 104 is fixedly connected to the inner wall of the limiting hole 103. A limiting block 105 is fixedly connected to the top of the spring 104. A through hole 106 is formed on the left side of the plug 101. The retaining ring 102 is slightly smaller than the size of the through hole 106 on the left side of the plug. Multiple limiting holes 103 are formed on the surface of the retaining ring 102. Each limiting hole 103 is fitted with a corresponding spring 104 and a limiting block 105.
[0029] Several limiting holes 103 are provided, and the limiting holes 103 are evenly distributed. Several springs 104 are provided, and the springs 104 are evenly distributed. Several limiting blocks 105 are provided, and the limiting blocks 105 are evenly distributed. After the internal structure of the plug 101 is assembled, the end with the fixing ring 102 will be aligned with the slot of the external ring main unit for fixation. When the plug 101 is pushed to insert the fixing ring 102, the limiting block 105 will be compressed inward by the pressure of the external slot through the spring 104, thereby inserting the fixing ring 102. However, the extension force of the spring 104 will also cause the limiting block 105 to press against the inner wall of the external slot, thereby fixing the plug 101 to the ring main unit. In addition, if damage occurs, the plug 101 can be directly unplugged for repair, which improves the maintenance convenience of the connector.
[0030] The fixing mechanism 2 includes a stress cone 201, which is sleeved on the inner wall of the plug 101. A cable 202 is sleeved on the inner wall of the stress cone 201. When the cable 202 is combined with the stress cone 201, the surface layer of the cable 202 is first cut and polished in order to better fix the conductivity.
[0031] Stress cone 201 is composed of black semiconductor and transparent insulator.
[0032] The connection mechanism 3 includes a terminal 301, which is sleeved on the top of the cable 202. A connector 302 is fixedly connected to the top of the terminal 301. When the stress cone 201, along with the cable 202, is inserted from the bottom of the plug 101, the connector 302 on the top of the terminal 301 will be placed horizontally inside the through hole 106.
[0033] The implementation principle of the connection structure of a detachable connector in this embodiment is as follows: The detachable connector connection structure has a retaining ring 102 on the left side of the plug 101. The size of the retaining ring 102 is slightly smaller than the size of the through hole 106 on the left side of the socket. Multiple limiting holes 103 are provided on the surface of the retaining ring 102, and each limiting hole 103 is fitted with a corresponding spring 104 and a limiting block 105. When the cable 202, terminal 301, and stress cone 201 structure inside the plug 101 are assembled, the... The end with the retaining ring 102 is aligned with the slot of the external ring main unit for fixation. When the plug 101 is pushed to insert the retaining ring 102, the limiting block 105 is compressed inward by the pressure of the external slot through the spring 104, thereby inserting the retaining ring 102. However, the extension force of the spring 104 will also cause the limiting block 105 to press against the inner wall of the external slot, thereby fixing the plug 101 to the ring main unit. Furthermore, if damage occurs, the plug 101 can be directly unplugged for repair, improving the maintenance convenience of the connector.
[0034] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A connection structure for a detachable connector, characterized in that, It includes a main body (1), a fixing mechanism (2) is provided inside the main body (1), and a connecting mechanism (3) is provided inside the main body (1); The main body (1) includes a plug (101), a fixing ring (102) is fixedly connected to the left side of the plug (101), a limiting hole (103) is opened on the surface of the fixing ring (102), a spring (104) is fixedly connected to the inner wall of the limiting hole (103), a limiting block (105) is fixedly connected to the top of the spring (104), and a through hole (106) is opened on the left side of the plug (101).
2. The connection structure of a detachable connector as described in claim 1, characterized in that: The limiting holes (103) are provided in a plurality of equal distances, the springs (104) are provided in a plurality of equal distances, and the limiting blocks (105) are provided in a plurality of equal distances.
3. The connection structure of a detachable connector as described in claim 1, characterized in that: The fixing mechanism (2) includes a stress cone (201), which is sleeved on the inner wall of the plug (101), and a cable (202) is sleeved on the inner wall of the stress cone (201).
4. The connection structure of a detachable connector as described in claim 3, characterized in that: The stress cone (201) is composed of a black semiconductor and a transparent insulator.
5. The connection structure of a detachable connector as described in claim 3, characterized in that: The connecting mechanism (3) includes a terminal (301), which is sleeved on the top of the cable (202), and a connector (302) is fixedly connected to the top of the terminal (301).
6. The connection structure of a detachable connector as described in claim 5, characterized in that: The terminal (301) is made of aluminum.