A universal circuit breaker base
By using a double-ended lead screw and L-shaped guide rail structure, combined with U-shaped rubber pads and elastic clamps, the problem of unstable fixing of the universal circuit breaker base is solved, achieving more stable installation and safer operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KETAI ELECTRIC CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-07-14
AI Technical Summary
The existing universal circuit breaker base is not securely fixed and is prone to falling off due to external force, affecting stability and safety.
It adopts a double-ended lead screw and L-shaped guide rail plate structure, combined with U-shaped rubber pads and elastic clamping devices. Through the cooperation of threaded connection and spring, it can achieve a stable fixation of the universal circuit breaker and improve the fixation firmness and stability.
It improves the installation stability and safety of universal circuit breakers, prevents them from falling, simplifies the installation and removal process, and saves time and manpower.
Smart Images

Figure CN224501831U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of universal circuit breaker technology, specifically a universal circuit breaker base. Background Technology
[0002] Universal circuit breakers primarily serve as electrical protection devices. When a circuit experiences overload, short circuit, or other faults, the universal circuit breaker will quickly disconnect the circuit, protecting electrical equipment and personal safety. The universal circuit breaker base can be used to fix the entire circuit breaker in place, ensuring its stable operation.
[0003] The prior art discloses patent application number "CN202222810583.7", which discloses a base for circuit breaker maintenance, including a base body. A connecting plate is fixedly connected to the upper edge of the base body. A slot is opened inside the connecting plate. Horizontal grooves are symmetrically opened on the upper and lower sides of the slot. A slider is slidably connected inside the horizontal groove. A moving block is fixedly connected to the front side of the slider. A telescopic rod is fixedly connected to the right side of the moving block.
[0004] The circuit breaker base can only fix the connecting wires inside the circuit breaker body. However, in actual use, the above-mentioned device usually simply snaps the universal circuit breaker onto the base. This installation method makes the universal circuit breaker not securely fixed and it is easy to fall off due to external force. This affects the stability of the universal circuit breaker base when fixing the universal circuit breaker and makes it inconvenient to use. Utility Model Content
[0005] The purpose of this utility model is to provide a universal circuit breaker base 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] A universal circuit breaker base includes a base body, a double-ended lead screw is rotatably connected inside the base body, and two symmetrically distributed connecting plates are threaded on the outer surface of the double-ended lead screw. An L-shaped guide rail plate is fixedly installed on one side of each of the two connecting plates, and a U-shaped rubber pad is fixedly provided on one side of each of the two L-shaped guide rail plates. Two universal circuit breaker bodies are clamped together on the two L-shaped guide rail plates.
[0008] Both ends of the base body are fixedly connected to mounting side plates. Both ends of the universal circuit breaker body are slidably connected to telescopic baffles for clamping the universal circuit breaker body. Springs are arrayed between the two telescopic baffles and the universal circuit breaker body. Limiting slide rods are fixedly installed inside the base body.
[0009] Preferably, the base body has an internal array of round rods connected to it, the outer surface of the round rods is slidably engaged with a slide, one side of the slide is fixedly connected to a second spring, one side of the second spring is fixedly provided with a fixing block, one side of the fixing block is rotatably mounted with a movable pressure plate for positioning the universal circuit breaker body, and two displacement blocks are slidably mounted on the outer surface of the round rods.
[0010] Preferably, one side of each of the two displacement blocks is slidably connected to a support slide for supporting the body of the universal circuit breaker, and the two support slides are fixedly connected to the displacement blocks by springs.
[0011] Preferably, one side of the displacement block is threaded with a fastening bolt for fixing the displacement block, and the slide is located between the two displacement blocks. The slide is used to separate the two universal circuit breaker bodies.
[0012] Preferably, the base body has two heat dissipation slots inside, and each of the two heat dissipation slots is fixed with an array of heat dissipation fins.
[0013] Preferably, one side of the double-ended lead screw passes through the base body and extends to the upper side of the base body, and an operating handwheel is fixedly connected to one side of the double-ended lead screw, and the outer surface of the limit slide rod is slidably placed inside the connecting plate.
[0014] The beneficial effects of this utility model are:
[0015] 1. This utility model further locks the universal circuit breaker by moving the two L-shaped guide rails away from each other, thereby strengthening the stability of the universal circuit breaker during fixing. At the same time, the U-shaped rubber pads at the two L-shaped guide rails will increase the friction with the two telescopic baffles to form a universal circuit breaker base structure for stable limiting and fixing of the universal circuit breaker, improving the stability of the universal circuit breaker base when installing the universal circuit breaker, and preventing the universal circuit breaker from falling off due to external force.
[0016] 2. This utility model utilizes two elastic support slides to elastically clamp the universal circuit breaker to the upper and lower sides, and then allows the elastic movable pressure plate to support and position the two universal circuit breakers together. This snap-fit clamping method not only facilitates quick and easy installation and removal of the universal circuit breaker, saving time and manpower, but also keeps the universal circuit breaker in a stable installation state, improving the safety of the universal circuit breaker during operation. 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 2 This is a utility model Figure 1 Schematic diagram of the structure of the middle connecting plate and the L-shaped guide rail plate;
[0020] Figure 3 This is a utility model Figure 2 A schematic diagram of the structure of the L-shaped guide rail plate and the U-shaped rubber pad;
[0021] Figure 4 This is a utility model Figure 1 Installation diagram of the fixed block and movable pressure plate;
[0022] Figure 5 This is a utility model Figure 1 Installation diagram of the double-ended lead screw and connecting plate;
[0023] The attached figures are labeled as follows:
[0024] 1. Base body; 2. Double-ended lead screw; 3. Connecting plate; 4. L-shaped guide rail plate; 5. U-shaped rubber pad; 6. Universal circuit breaker body; 7. Mounting side plate; 8. Telescopic baffle; 9. Spring 1; 10. Operating handwheel; 11. Limiting slide rod; 12. Round rod; 13. Slide bracket; 14. Spring 2; 15. Fixing block; 16. Movable pressure plate; 17. Displacement block; 18. Fastening bolt; 19. Support slide; 20. Spring 3; 66. Heat dissipation groove; 88. Heat dissipation fin. 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] like Figures 1 to 5 As shown, a universal circuit breaker base includes a base body 1. A double-ended lead screw 2 is rotatably connected inside the base body 1. Two symmetrically distributed connecting plates 3 are threadedly connected to the outer surface of the double-ended lead screw 2. An L-shaped guide rail plate 4 is fixedly installed on one side of each of the two connecting plates 3. A U-shaped rubber pad 5 is fixedly provided on one side of each of the two L-shaped guide rail plates 4. Two universal circuit breaker bodies 6 are snapped onto the two L-shaped guide rail plates 4 together.
[0027] Both ends of the base body 1 are fixedly connected to mounting side plates 7. The two mounting side plates 7 and screws can be used to fix the entire universal circuit breaker base at the required installation location for assembly and fixing of the universal circuit breaker. Both ends of the universal circuit breaker body 6 are slidably connected to telescopic baffles 8 for clamping the universal circuit breaker body 6. Springs 9 are arrayed between the two telescopic baffles 8 and the universal circuit breaker body 6. Limiting slide rods 11 are fixedly installed inside the base body 1.
[0028] The base body 1 has a circular rod 12 connected to its internal array. The outer surface of the circular rod 12 is slidably engaged with a slide 13. The slide 13 can separate the two universal circuit breaker bodies 6 so that the universal circuit breaker can dissipate heat better and prevent heat from concentrating in one place, thus extending the service life of the universal circuit breaker. A spring 14 is fixedly connected to one side of the slide 13. A fixing block 15 is fixedly installed on one side of the spring 14. A movable pressure plate 16 for positioning the universal circuit breaker body 6 is rotatably installed on one side of the fixing block 15. Two displacement blocks 17 are slidably installed on the outer surface of the circular rod 12.
[0029] Each of the two displacement blocks 17 has a sliding support slide 19 for supporting the universal circuit breaker body 6 on one side. The two support slides 19 are fixedly connected to the displacement blocks 17 by springs 20. After installation, the circuit breaker is tightly connected to the installation position, reducing the possibility of loosening or shaking, which helps to ensure the normal operation of the universal circuit breaker.
[0030] One side of the displacement block 17 is threaded with a fastening bolt 18 for fixing the displacement block 17. The slide 13 is located between the two displacement blocks 17 and is used to separate the two universal circuit breaker bodies 6.
[0031] The base body 1 has two heat dissipation slots 66 inside, and each of the two heat dissipation slots 66 is fixed with an array of heat dissipation fins 88. Through the installation and use of the heat dissipation slots 66 and heat dissipation fins 88, the two can work together to dissipate heat, which can accelerate the dissipation of heat from the universal circuit breaker and prevent the circuit breaker temperature from becoming too high due to heat accumulation, thereby ensuring the normal operation and service life of the universal circuit breaker.
[0032] One side of the double-ended lead screw 2 passes through the base body 1 and extends to the upper side of the base body 1. An operating handwheel 10 is fixedly connected to one side of the double-ended lead screw 2. The outer surface of the limiting slide rod 11 is slidably placed inside the connecting plate 3. The limiting slide rod 11 can guide and limit the movement trajectory of the two connecting plates 3, so that the two L-shaped guide rail plates 4 can be smoothly adjusted and moved to clamp the universal circuit breaker. At the same time, rotating the double-ended lead screw 2 in the opposite direction can make the two L-shaped guide rail plates 4 move towards each other to facilitate the disassembly of the universal circuit breaker.
[0033] The working principle of the universal circuit breaker base provided by this utility model is as follows:
[0034] By attaching the two universal circuit breaker bodies 6 to the two L-shaped guide rails 4, the two telescopic baffles 8, each equipped with a spring 9, can be compressed and positioned at the two L-shaped guide rails 4 for initial elastic clamping of the universal circuit breaker. Then, the operating handwheel 10 is rotated to drive the universal circuit breaker to rotate, allowing the two connecting plates 3 on the double-ended screw 2 to move relative to each other. At this time, the two connecting plates 3 can drive the two L-shaped guide rails 4 to move together, so that the two L-shaped guide rails 4 move away from each other and further lock the universal circuit breaker, strengthening the stability of the universal circuit breaker when it is fixed. At the same time, the U-shaped rubber pads 5 at the two L-shaped guide rails 4 will also increase the friction with the two telescopic baffles 8 to form the universal circuit breaker base structure, which is used to stably limit and fix the universal circuit breaker, improve the stability of the universal circuit breaker base when installing the universal circuit breaker, and prevent the universal circuit breaker from falling off due to external force.
[0035] By moving the displacement blocks 17 on the round rod 12, the two sets of displacement blocks 17 are moved to the upper and lower ends of the universal circuit breaker body 6. Then, the fastening bolts 18 are tightened to lock their positions. In this way, the two support slides 19 with springs 3 20 can elastically clamp the universal circuit breaker. Next, the fixing block 15 with springs 2 14 is pulled, so that the fixing block 15 can drive the movable pressure plate 16 to the front of the universal circuit breaker body 6. Then, the movable pressure plate 16 is rotated so that it can be positioned in front of the two universal circuit breaker bodies 6 to support and position the two universal circuit breakers together. This snap-fit clamping method can facilitate quick and easy installation and removal of the universal circuit breaker, saving time and manpower. It can also keep the universal circuit breaker in a stable installation state and improve the safety of the universal circuit breaker during operation.
[0036] 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. A universal circuit breaker base, comprising a base body (1), characterized in that: The base body (1) is internally rotatably connected to a double-ended lead screw (2), and the outer surface of the double-ended lead screw (2) is threaded with two symmetrically distributed connecting plates (3). An L-shaped guide rail plate (4) is fixedly installed on one side of each of the two connecting plates (3). A U-shaped rubber pad (5) is fixedly provided on one side of each of the two L-shaped guide rail plates (4). Two universal circuit breaker bodies (6) are snapped onto the two L-shaped guide rail plates (4). The base body (1) is fixedly connected to both ends of the mounting side plate (7), and the universal circuit breaker body (6) is slidably connected to both ends of the universal circuit breaker body (6) for clamping the universal circuit breaker body (6). The two telescopic baffles (8) and the universal circuit breaker body (6) are connected in an array with springs (9). The base body (1) is fixedly installed with a limit slide rod (11).
2. A universal circuit breaker base according to claim 1, characterized in that, The base body (1) is internally connected with a circular rod (12). A slide bracket (13) is slidably engaged on the outer surface of the circular rod (12). A spring (14) is fixedly connected to one side of the slide bracket (13). A fixing block (15) is fixedly provided on one side of the spring (14). A movable pressure plate (16) for positioning the universal circuit breaker body (6) is rotatably installed on one side of the fixing block (15). Two displacement blocks (17) are slidably installed on the outer surface of the circular rod (12).
3. A universal circuit breaker base according to claim 2, characterized in that, Each of the two displacement blocks (17) is slidably connected to a support slide (19) for supporting the universal circuit breaker body (6), and a spring three (20) is fixedly connected between the two support slides (19) and the displacement blocks (17).
4. A universal circuit breaker base according to claim 2, characterized in that, One side of the displacement block (17) is threaded with a fastening bolt (18) for fixing the displacement block (17). The slide (13) is located between the two displacement blocks (17) and is used to separate the two universal circuit breaker bodies (6).
5. A universal circuit breaker base according to claim 1, characterized in that, The base body (1) has two heat dissipation slots (66) inside, and each of the two heat dissipation slots (66) is fixed with an array of heat dissipation fins (88).
6. A universal circuit breaker base according to claim 1, characterized in that, One side of the double-ended lead screw (2) passes through the base body (1) and extends to the upper side of the base body (1). An operating handwheel (10) is fixedly connected to one side of the double-ended lead screw (2), and the outer surface of the limiting slide rod (11) is slidably placed inside the connecting plate (3).