Elastic self-tensioning connection structure of bus duct connector
The flexible self-tensioning connection structure solves the problem of unstable connection caused by thermal expansion and contraction and installation errors in busbar trunking, realizes automatic adaptation and stability of busbar trunking connection, and improves the flexibility and reliability of electrical connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-07
AI Technical Summary
Existing busbar connections cannot automatically adapt to changes in size and displacement due to factors such as thermal expansion and contraction and installation errors, making it difficult to maintain good electrical connections and mechanical stability.
It adopts an elastic self-tensioning connection structure. Through the combination design of outer frame, positioning column, spring, L-shaped plate and limiting mechanism, the groove body is elastically connected and limited and fixed on the mounting frame, which can adapt to the dimensional changes caused by thermal expansion and contraction and installation errors.
It enables the busbar trunking connection parts to automatically adapt to thermal expansion and contraction and installation errors within a certain range, ensuring electrical and mechanical stability and improving the flexibility and reliability of the connection.
Smart Images

Figure CN224097372U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of busbar trunking technology, specifically an elastic self-tensioning connection structure for a busbar trunking connector. Background Technology
[0002] Busbar trunking uses copper or aluminum busbars as conductors and relies on air or insulating materials for insulation. It is mainly used in important power transmission and transformation sites, such as the connection between transformers, generators and switchgear in substations, the main power supply lines in high-rise buildings, or for the transmission of large currents. It can also be used for trunk branching power transmission, with multiple feeder points set in the line for direct power supply.
[0003] Most existing busbar trunking systems are fixed and spliced together by multiple bolts. This means that the connection points cannot automatically adapt to the dimensional changes and displacements of the busbar trunking caused by factors such as thermal expansion and contraction and installation errors within a certain range. As a result, it is difficult to ensure that the busbar trunking systems maintain good electrical connection and mechanical stability. Utility Model Content
[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides an elastic self-tensioning connection structure for busbar connectors, which effectively solves the problem that the connection parts of the current busbar cannot automatically adapt to the size changes and displacements caused by factors such as thermal expansion and contraction and installation errors within a certain range.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an elastic self-tensioning connection structure for a busbar connector, comprising a mounting frame and two slots, both slots being fitted inside the mounting frame, a connecting mechanism being provided between the mounting frame and the slots, and a limiting mechanism being provided on the mounting frame;
[0006] The connecting mechanism includes an outer frame that is fixedly sleeved on the outside of the groove. Two positioning posts are symmetrically fixedly connected to the side of the outer frame near the mounting frame. An outer ring is movably sleeved on the outside of the positioning posts. The outer ring abuts against the mounting frame. A spring is fixedly connected between the outer ring and the outer frame. The spring is sleeved on the outside of the positioning posts. Two positioning holes are symmetrically provided on the mounting frame. The positioning posts are inserted into the positioning holes.
[0007] Preferably, the outer frame has two symmetrically rotatably connected support shafts, and an L-shaped plate is fixedly connected to the end of the support shaft away from the outer frame.
[0008] Preferably, an abutment plate is fixedly connected to the outer side of the mounting frame, an L-shaped plate abuts against the abutment plate, a side rod is fixedly connected to the outer side of the abutment plate, and the L-shaped plate is movably sleeved on the outer side of the side rod.
[0009] Preferably, the limiting mechanism includes an outer U-shaped rod fixed to the mounting frame, a limiting plate movably sleeved on the outer side of the U-shaped rod, and the limiting plate is sleeved on the outer side of the side rod and does not abut against the L-shaped plate.
[0010] Preferably, a rotating shaft is rotatably connected to the outer side of the mounting frame, and a disc is fixedly connected to the end of the rotating shaft away from the mounting frame. A movable rod is rotatably connected to the outer side of the disc, and the end of the movable rod away from the disc is rotatably connected to the top of the limiting plate.
[0011] Preferably, an abutment rod is fixedly connected to the outer side of the rotating shaft, and a column is fixedly connected to the outer side of the mounting frame. The abutment rod abuts against the column, and a long bolt is installed between the disc and the column.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. The fit between the outer frame, positioning post, and positioning hole facilitates the positioning of the groove on the mounting frame. This allows the L-shaped plate to be fitted onto the outside of the side rod under the action of the spring force, making it easy to connect the groove to the mounting frame. This enables the two grooves to be elastically connected, allowing the connection part of the two grooves to automatically adapt to dimensional changes and displacements caused by factors such as thermal expansion and contraction and installation errors within a certain range.
[0014] 2. Through the cooperation between the rotating shaft and the disc, as well as the movable rod and the U-shaped rod, the limiting plate can be easily fitted onto the outside of the side rod. Through the cooperation between the abutment rod, the column, and the long bolt, the disc can be limited to prevent it from rotating arbitrarily, thereby fixing the position of the limiting plate. This facilitates the limiting of the L-shaped plate to prevent it from detaching from the side rod. Attached Figure Description
[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0016] In the attached diagram:
[0017] Figure 1 This is a schematic diagram of the elastic self-tensioning connection structure of the busbar trunking connector of this utility model;
[0018] Figure 2 This is a schematic diagram of the mounting frame structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the connection mechanism of this utility model;
[0020] Figure 4 This is a schematic diagram of the L-shaped plate structure of this utility model;
[0021] Figure 5This is a schematic diagram of the outer ring structure of this utility model;
[0022] Figure 6 This is a schematic diagram of the limiting mechanism of this utility model.
[0023] In the diagram: 1. Mounting frame; 2. Connecting mechanism; 201. Outer frame; 202. L-shaped plate; 203. Outer ring; 204. Side rod; 205. Abutment plate; 206. Support shaft; 207. Positioning post; 208. Spring; 3. Limiting mechanism; 301. U-shaped round rod; 302. Column; 303. Abutment rod; 304. Rotating shaft; 305. Movable rod; 306. Disc; 307. Long bolt; 308. Limiting plate; 4. Groove; 5. Positioning hole. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0025] Example 1, by Figure 1 The present invention relates to an elastic self-tensioning connection structure for a busbar trunking connector, comprising a mounting frame 1 and a trunking 4, wherein there are two trunking 4, both of which are fitted inside the mounting frame 1, a connecting mechanism 2 is provided between the mounting frame 1 and the trunking 4, and a limiting mechanism 3 is provided on the mounting frame 1.
[0026] Specifically, by Figure 2-5 The connecting mechanism 2 includes an outer frame 201 fixedly sleeved on the outside of the groove 4. Two positioning posts 207 are symmetrically fixedly connected to the side of the outer frame 201 near the mounting frame 1. An outer ring 203 is movably sleeved on the outside of the positioning posts 207. The outer ring 203 abuts against the mounting frame 1. A spring 208 is fixedly connected between the outer ring 203 and the outer frame 201. The spring 208 is sleeved on the outside of the positioning posts 207. Two positioning holes 5 are symmetrically provided on the mounting frame 1. The positioning posts 207 are inserted into the positioning holes 5. Two support shafts 206 are symmetrically rotatably connected to the outside of the outer frame 201. An L-shaped plate 202 is fixedly connected to the end of the support shaft 206 away from the outer frame 201. An abutment plate 205 is fixedly connected to the outside of the mounting frame 1. The L-shaped plate 202 abuts against the abutment plate 205. A side rod 204 is fixedly connected to the outside of the abutment plate 205. The L-shaped plate 202 is movably sleeved on the outside of the side rod 204.
[0027] In use, first insert the groove 4 into the mounting frame 1, so that the two positioning pins 207 are inserted into the two positioning holes 5 respectively, until the two outer rings 203 are in contact with the mounting frame 1. Then continue to move the groove 4, and move the two positioning pins 207 through the outer frame 201. At this time, the two springs 208 are deformed. Then rotate the L-shaped plate 202 until it is in contact with the abutment plate 205. Then release the groove 4, so that the L-shaped plate 202 is sleeved on the outside of the side rod 204 under the action of the spring force of the spring 208, connecting the groove 4 to the mounting frame 1, realizing the elastic connection of the two grooves 4. Finally, ensure that the connection part of the two grooves 4 can automatically adapt to the size changes and displacements of the groove 4 caused by thermal expansion and contraction, installation errors and other factors within a certain range.
[0028] Specifically, by Figure 6 The limiting mechanism 3 includes a U-shaped rod 301 fixed to the outer side of the mounting frame 1. A limiting plate 308 is movably sleeved on the outer side of the U-shaped rod 301. The limiting plate 308 is sleeved on the outer side of the side rod 204 and does not abut against the L-shaped plate 202. A rotating shaft 304 is rotatably connected to the outer side of the mounting frame 1. A disc 306 is fixedly connected to the end of the rotating shaft 304 away from the mounting frame 1. A movable rod 305 is rotatably connected to the outer side of the disc 306. The end of the movable rod 305 away from the disc 306 is rotatably connected to the top of the limiting plate 308. An abutting rod 303 is fixedly connected to the outer side of the rotating shaft 304. A column 302 is fixedly connected to the outer side of the mounting frame 1. The abutting rod 303 abuts against the column 302. A long bolt 307 is installed between the disc 306 and the column 302.
[0029] In use, first rotate the disc 306, which drives the rotating shaft 304 and the abutment rod 303 to rotate. The movable rod 305 drives the limiting plate 308 to slide along the U-shaped rod 301, so that the limiting plate 308 is fitted on the outside of the side rod 204 until the abutment rod 303 rotates to abut against the column 302. Then, the disc 306 is fixed to the column 302 by the long bolt 307 to prevent the disc 306 from rotating arbitrarily and to fix the position of the limiting plate 308. Finally, the L-shaped plate 202 is limited to prevent it from detaching from the side rod 204.
Claims
1. A self-tensioning connection structure for a busbar trunking connector, comprising a mounting frame (1) and two grooves (4), wherein both grooves (4) are fitted inside the mounting frame (1), characterized in that: A connecting mechanism (2) is provided between the mounting frame (1) and the groove (4), and a limiting mechanism (3) is provided on the mounting frame (1); The connecting mechanism (2) includes an outer frame (201) fixedly sleeved on the outside of the groove (4). Two positioning posts (207) are symmetrically fixedly connected on the side of the outer frame (201) near the mounting frame (1). An outer ring (203) is movably sleeved on the outside of the positioning post (207). The outer ring (203) abuts against the mounting frame (1). A spring (208) is fixedly connected between the outer ring (203) and the outer frame (201). The spring (208) is sleeved on the outside of the positioning post (207). Two positioning holes (5) are symmetrically provided on the mounting frame (1). The positioning post (207) is inserted into the positioning hole (5).
2. The elastic self-tensioning connection structure of a busbar connector according to claim 1, characterized in that: The outer frame (201) has two symmetrically rotatably connected support shafts (206) on its outer side, and an L-shaped plate (202) is fixedly connected to one end of the support shaft (206) away from the outer frame (201).
3. The elastic self-tensioning connection structure of a busbar connector according to claim 1, characterized in that: An abutment plate (205) is fixedly connected to the outside of the mounting frame (1). An L-shaped plate (202) abuts against the abutment plate (205). A side rod (204) is fixedly connected to the outside of the abutment plate (205). The L-shaped plate (202) is movably sleeved on the outside of the side rod (204).
4. The elastic self-tensioning connection structure of a busbar connector according to claim 1, characterized in that: The limiting mechanism (3) includes an outer U-shaped rod (301) fixed to the mounting frame (1), and a limiting plate (308) is movably sleeved on the outer side of the U-shaped rod (301). The limiting plate (308) is sleeved on the outer side of the side rod (204) and does not abut against the L-shaped plate (202).
5. The elastic self-tensioning connection structure of a busbar connector according to claim 1, characterized in that: A rotating shaft (304) is rotatably connected to the outer side of the mounting frame (1). A disc (306) is fixedly connected to the end of the rotating shaft (304) away from the mounting frame (1). A movable rod (305) is rotatably connected to the outer side of the disc (306). The end of the movable rod (305) away from the disc (306) is rotatably connected to the top of the limiting plate (308).
6. The elastic self-tensioning connection structure of a busbar connector according to claim 5, characterized in that: An abutment rod (303) is fixedly connected to the outside of the rotating shaft (304), and a column (302) is fixedly connected to the outside of the mounting frame (1). The abutment rod (303) abuts against the column (302), and a long bolt (307) is installed between the disc (306) and the column (302).