Outdoor vacuum circuit breaker outgoing line structure
The L-shaped clamping plate and return spring slider structure enhance the connection stability of the outdoor vacuum circuit breaker, solving the stability problem of threaded connection in vibration and humid environments, realizing convenient operation and normal bolt rotation, and improving the connection performance of the outdoor vacuum circuit breaker.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ZHITENG ELECTRIC CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-07-21
AI Technical Summary
The existing threaded connection method of outdoor vacuum circuit breakers has poor stability in vibration and humid environments, and the fixing operation is inconvenient.
The system employs a combination structure of an L-shaped clamping plate, a return spring, a slider, and a sliding rod. By rotating the L-shaped clamping plate, it is fitted onto the outside of the fixed plate, and the return spring and slider drive the limit block to move, enhancing the stability of the connection. At the same time, the connecting shell, long rod, connecting ring, and collar structure ensure that the normal rotation of the bolt is not obstructed.
It improves the connection stability of outdoor vacuum circuit breakers, makes operation convenient, reduces reliance on external tools, avoids bolt loss, and enhances long-term stability performance in vibration and humid environments.
Smart Images

Figure CN224536950U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of outdoor vacuum circuit breaker technology, specifically an outgoing line structure for an outdoor vacuum circuit breaker. Background Technology
[0002] Outdoor vacuum circuit breakers are electrical equipment specifically designed for outdoor high-voltage power distribution systems. They are mainly used for breaking and isolating high-voltage side load currents and are suitable for industrial and mining enterprises, power plants, and substations. They are particularly suitable for environments requiring oil-free operation, minimal maintenance, and frequent operation. Outdoor vacuum circuit breakers are equipped with an upper outgoing cable structure for connecting external cables.
[0003] In the prior art, such as the outdoor high-voltage vacuum circuit breaker with an outgoing line proposed in patent application number "CN202022697969.2", when the mounting threaded hole is tightened on the nut, the clamping bolt that matches the clamping threaded hole is then passed through the sliding hole and screwed into the clamping threaded hole, thereby causing the first clamping block and the second clamping block to clamp each other, so that the arc sleeve clamps the mounting bolt, which can prevent the arc sleeve from falling off the mounting bolt.
[0004] However, in the aforementioned patent application, the arc-shaped sleeve is reinforced and fixed by using threaded holes and clamping bolts. However, since outdoor vacuum circuit breakers are installed and used outdoors, the threaded connection method is greatly affected by external vibrations, such as moisture, corrosion, and vibration, which will weaken the stability of this fixing method. In addition, external tools are required to tighten the bolts during fixing, which is quite troublesome. Utility Model Content
[0005] The purpose of this utility model is to provide an outgoing line structure for an outdoor vacuum circuit breaker to solve the problems mentioned in the background art.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] An outdoor vacuum circuit breaker top-outlet structure includes a main body 1, a main body 2 fixedly connected to one end of the main body 1, a fixing hole through the upper surface of the main body 2, two mounting holes 1 through the upper surface of the main body 1, a groove in the outer wall of the main body 2, an L-shaped clamping plate rotatably connected to the groove through a shaft, a fixing slot through the outer wall of the L-shaped clamping plate near one end, a fixing plate inserted into the fixing slot, and one end of the fixing plate fixedly connected to the main body 2.
[0008] Two bolts are provided at the bottom of the main body, and a connecting shell is fixedly connected to the bottom end of each of the two bolts. Two connecting rings are fixedly connected to the bottom surface of the main body.
[0009] Preferably, limit blocks are movably inserted into both the upper and lower surfaces of the fixing plate, and a connecting frame is fixedly connected to the outer wall of the fixing plate.
[0010] Preferably, a slide rod is fixedly installed inside the connecting frame, and sliders are sleeved on the outside of the slide rod near both ends.
[0011] Preferably, one end of each of the two sliders is fixedly connected to two limiting blocks, and a return spring is sleeved on the outside of the slide rod and located between the two sliders.
[0012] Preferably, fixing pins are inserted into the outer side wall of the connecting frame near both ends, and limiting holes are opened on the outer side wall of both sliders, and the limiting holes fit with the fixing pins.
[0013] Preferably, two connecting blocks are fixedly connected to the outer wall of the connecting shell, and long rods are movably inserted into the bottom surface of each of the two connecting blocks. The ends of the two long rods away from the connecting shell are fixedly connected to a collar, and two nuts are fixedly connected to the upper surface of the main body.
[0014] The beneficial effects of this utility model are:
[0015] 1. In this utility model, by rotating the L-shaped clamping plate, the L-shaped clamping plate is fitted onto the outside of the fixed plate through the fixing groove. With the help of the return spring, slider and slide rod, the two limiting blocks can be moved outward to the initial position of the fixed plate, blocking and limiting one side of the L-shaped clamping plate, thereby connecting and fixing the two ends of the main body two, strengthening the connection stability between the main body two and the screw on the outdoor vacuum circuit breaker. Compared with the existing screw and nut reinforcement method, it is not only more convenient to operate, but also less affected by the humidity and vibration of the external environment, improving the long-term stable connection performance with the outdoor vacuum circuit breaker.
[0016] 2. In this utility model, the connecting shell, long rod, connecting ring and collar are designed to connect the bolt to the main body without affecting the normal rotation of the bolt. This makes it easier to fix the cable without having to remove the connecting parts from the outside and also avoids losing the bolt. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2This is a structural diagram of the main body and bolts in this utility model;
[0020] Figure 3 This is a partial structural schematic diagram of the present invention;
[0021] Figure 4 This is a schematic diagram of the structure of the second main body in this utility model;
[0022] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.
[0023] The attached figures are labeled as follows:
[0024] 1. Main body one; 2. Main body two; 3. L-shaped card plate; 4. Fixing plate; 5. Sliding rod; 6. Limiting block; 7. Fixing nail; 8. Connecting frame; 9. Sliding block; 10. Nut; 11. Bolt; 12. Connecting shell; 13. Connecting block; 14. Long rod; 15. Connecting ring; 16. Collar; 17. Mounting hole one; 18. Groove; 19. Fixing hole; 20. Fixing slot. Detailed Implementation
[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] An outdoor vacuum circuit breaker with outgoing line structure, such as Figures 1-5 As shown, it includes a main body 1, with a main body 2 fixedly connected to one end of the main body 1. A fixing hole 19 is provided through the upper surface of the main body 2. Two mounting holes 17 are provided through the upper surface of the main body 1. A groove 18 is provided on the outer wall of the main body 2. An L-shaped clamping plate 3 is rotatably connected to the groove 18 through a shaft. A fixing groove 20 is provided through the outer wall of the L-shaped clamping plate 3 near one end. A fixing plate 4 is inserted into the fixing groove 20, and one end of the fixing plate 4 is fixedly connected to the main body 2. Two bolts 11 are provided at the bottom of the main body 1. A connecting shell 12 is fixedly connected to the bottom of each bolt 11. Two connecting rings 15 are fixedly connected to the bottom surface of the main body 1.
[0027] Limiting blocks 6 are movably inserted into both the upper and lower surfaces of the fixed plate 4. A connecting frame 8 is fixedly connected to the outer wall of the fixed plate 4. A sliding rod 5 is fixedly installed inside the connecting frame 8. Sliding blocks 9 are sleeved on the outer side of the sliding rod 5 near both ends. One end of each sliding block 9 is fixedly connected to the two limiting blocks 6. A return spring is sleeved on the outer side of the sliding rod 5 between the two sliding blocks 9. Fixing nails 7 are inserted into the outer side of the connecting frame 8 near both ends. Limiting holes are opened on the outer side of each sliding block 9, and the limiting holes fit with the fixing nails 7. By passing the fixing nails 7 through the connecting frame 8 and inserting them into the limiting holes, the position of the sliding blocks 9 can be fixed, thereby fixing the position of the limiting blocks 6 and improving the connection stability between the L-shaped card plate 3 and the fixed plate 4. The inner wall of the fixing hole 19 is threaded to fit the external screw.
[0028] In use, the fixing hole 19 on the main body 2 is fitted onto the screw on the outdoor vacuum circuit breaker, and the main body 2 is rotated and tightened onto the screw through the threaded connection of the screw on the inner wall of the fixing hole 19, thus completing the connection and installation of the outgoing line structure. After installation, the L-shaped clamping plate 3 is rotated so that the L-shaped clamping plate 3 is fitted onto the outside of the fixing plate 4 through the fixing groove 20. During the process of fitting onto the outside of the fixing plate 4, the inner wall of the fixing groove 20 contacts and moves with the inclined surface of the limiting block 6, pressing the limiting block 6 and causing the limiting block 6 to move into the inside of the fixing plate 4. The slider 9 follows the limiting block 6 and slides along the sliding rod 5 installed inside the connecting frame 8. Similarly, the other limiting block 6 also moves into the fixing plate 4, causing the other slider 9 to slide along the outside of the sliding rod 5. The return spring... After being squeezed and contracted until the L-shaped plate 3 completely passes through the two limiting blocks 6, under the action of the return spring, it can drive the two sliders 9 to move along the slide rod 5 to the initial position, and drive the two limiting blocks 6 to move outward of the fixed plate 4 to the initial position, blocking and limiting one side of the L-shaped plate 3, thereby connecting and fixing the two ends of the main body 2, strengthening the connection stability between the main body 2 and the screw on the outdoor vacuum circuit breaker. Compared with the existing screw and nut 10 reinforcement method, it is not only more convenient to operate, but also not affected by vibration. Finally, the fixing nail 7 is inserted into the limiting hole through the connecting frame 8, which can fix the position of the slider 9, thereby fixing the position of the limiting block 6, further improving the connection stability between the L-shaped plate 3 and the fixed plate 4.
[0029] Two connecting blocks 13 are fixedly connected to the outer wall of the connecting shell 12. Long rods 14 are movably inserted into the bottom surface of the two connecting blocks 13. The ends of the two long rods 14 away from the connecting shell 12 are fixedly connected to the collar 16. Two nuts 10 are fixedly connected to the upper surface of the main body 1. The nuts 10 and the inner walls of the two mounting holes 17 are threaded to fit the bolts 11.
[0030] Specifically, when connecting external cables, the cable is placed on the upper surface of the main body 1, and then the bolt 11 is moved upward along the two long rods 14 through the connecting shell 12, causing the bolt 11 to pass through the connecting ring 15 and be inserted into the mounting hole 17, and then through the mounting hole on the cable. The bolt 11 is then rotated to compress and fix the cable, so that the bolt 11 rotates along the mounting hole 17 and the inside of the nut 10, and is locked by rotating in conjunction with the threads on the inner wall of the mounting hole 17 and the nut 10, thus completing the connection of the cable. When the bolt 11 is rotated, the connecting shell 12 and the two long rods 14 rotate accordingly, causing the collar 16 to rotate along the outside of the connecting ring 15, without hindering the rotation of the bolt 11. Through the design of the connecting shell 12, long rods 14, connecting ring 15 and collar 16, the bolt 11 can be connected to the main body 1 without affecting the normal rotation of the bolt 11. This makes it unnecessary to remove the connector from the outside when fixing the cable, avoiding loss and making the fixing of the cable more convenient.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. An outdoor vacuum circuit breaker with outgoing line structure, comprising a main body (1), characterized in that, One end of the main body (1) is fixedly connected to the second body (2). The upper surface of the second body (2) is provided with a fixing hole (19). The upper surface of the first body (1) is provided with two mounting holes (17). The outer wall of the second body (2) is provided with a groove (18). The groove (18) is rotatably connected to an L-shaped card plate (3) through a shaft. The outer wall of the L-shaped card plate (3) is provided with a fixing groove (20) near one end. A fixing plate (4) is inserted into the fixing groove (20), and one end of the fixing plate (4) is fixedly connected to the second body (2). Two bolts (11) are provided below the main body (1), and a connecting shell (12) is fixedly connected to the bottom end of each of the two bolts (11). Two connecting rings (15) are fixedly connected to the bottom surface of the main body (1).
2. The outgoing line structure of an outdoor vacuum circuit breaker according to claim 1, characterized in that, Limiting blocks (6) are movably inserted into both the upper and lower surfaces of the fixing plate (4), and a connecting frame (8) is fixedly connected to the outer side wall of the fixing plate (4).
3. The outgoing line structure of an outdoor vacuum circuit breaker according to claim 2, characterized in that, The connecting frame (8) is fixedly installed with a slide rod (5), and the slide rod (5) is fitted with sliders (9) near both ends.
4. The outgoing line structure of an outdoor vacuum circuit breaker according to claim 3, characterized in that, One end of each of the two sliders (9) is fixedly connected to two limiting blocks (6), and a return spring is sleeved on the outside of the slide rod (5) and located between the two sliders (9).
5. The outgoing line structure of an outdoor vacuum circuit breaker according to claim 3, characterized in that, The connecting frame (8) has fixing nails (7) inserted near both ends on its outer side wall. The two sliders (9) have limit holes on their outer side walls, and the limit holes fit with the fixing nails (7).
6. The outgoing line structure of an outdoor vacuum circuit breaker according to claim 1, characterized in that, Two connecting blocks (13) are fixedly connected to the outer wall of the connecting shell (12). Long rods (14) are movably inserted into the bottom surface of the two connecting blocks (13). The ends of the two long rods (14) away from the connecting shell (12) are fixedly connected to the collar (16). Two nuts (10) are fixedly connected to the upper surface of the main body (1).