A snap mechanism for a circuit breaker
By designing a double-sided sliding groove structure and a hook limiting mechanism on the circuit breaker, the problem of inconvenient installation of a single-sided clip in a narrow space is solved, the deformation capacity of the clip is enhanced, and easy installation and disassembly are achieved, avoiding damage to the clip.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GREAT WALL ELECTRIC GRP ZHEJIANG TECH CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-23
AI Technical Summary
The single-sided latch of existing circuit breakers is inconvenient to install and remove in narrow spaces, and the elastic clip has limited deformation capacity, resulting in laborious use and easy damage.
A snap-fit mechanism for a circuit breaker is designed, which adopts a double-sided sliding groove structure. The first and second hooks cooperate with the limiting block to enhance the deformation capacity, and the slider is guided to move by the inclined surface. The combination of the lifting hole and the protrusion facilitates installation and disassembly.
It allows for easy movement of the clips on the mounting base, avoiding damage caused by excessive force and improving the convenience of installation and disassembly.
Smart Images

Figure CN224400326U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit breaker technology, specifically to a snap-fit mechanism for a circuit breaker. Background Technology
[0002] Currently, the clips on circuit breakers are usually installed on one side of the circuit breaker. However, single-sided installation of clips is not conducive to the installation and removal of circuit breakers in narrow spaces. Through research, we found the prior art with announcement number CN112786394A. Although its clips are installed on both sides of the circuit breaker, which can solve the problem of single-sided clips, it is not difficult to find from its technical solution that its elastic clip body is integrated into the clip plate. Therefore, the deformation capacity of the elastic clip body is limited, which is not conducive to the movement of the clip plate on the base. As a result, it is more difficult for users to move the clip plate, and the clip may be broken if not handled carefully. Utility Model Content
[0003] The purpose of this utility model is to provide a snap-fit mechanism for a circuit breaker to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a latching mechanism for a circuit breaker, comprising a circuit breaker, a mounting base on one side of the circuit breaker, and a latch slidably mounted on the mounting base; both sides of the mounting base are provided with sliding grooves, and the latch slides within the sliding grooves via a provided slider; the latch is also provided with a slot, and a first hook is provided within the slot, one end of which is connected to the latch and the other end of which is suspended within the slot; the suspended end of the first hook is hooked onto a limiting block provided on the mounting base, and the inner wall surface of the slot is in contact with the outer wall surface of the limiting block.
[0005] As a preferred technical solution of this utility model: the mounting base is further provided with a first limiting part, and the slot is further provided with a second hook, and the outer end face of the second hook abuts against the first limiting part to prevent the buckle from continuing to slide to the outside of the circuit breaker.
[0006] As a preferred technical solution of this utility model: the mounting base is further provided with a second limiting part, and the second hook is hooked on the second limiting part to prevent the buckle from sliding to the inside of the circuit breaker.
[0007] As a preferred technical solution of this utility model: the first limiting part is further provided with an inclined surface, and the second hook is guided into the space between the first limiting part and the second limiting part through the inclined surface.
[0008] As a preferred technical solution of this utility model: the outer end face of the limiting block is flush with the outer end face of the second limiting part, and the height of the first limiting part is equal to the height of the limiting block.
[0009] As a preferred technical solution of this utility model: the buckle is further provided with a lifting hole, and the lifting hole is further provided with a protrusion.
[0010] The beneficial effects of this utility model by adopting the above technical solution are as follows: Since the first hook of the buckle is suspended except for the connection end with the buckle, the first hook has a stronger deformation ability, so that the first hook can be smoothly connected and separated from the limiting block. This makes the buckle move more easily and conveniently on the mounting base, effectively avoiding the problem of the buckle being broken due to excessive force during the pulling process. Attached Figure Description
[0011] Figure 1 This is an exploded view of the main structure of this utility model;
[0012] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;
[0013] Figure 3 This is a schematic diagram of one side of the buckle structure of this utility model;
[0014] Figure 4 This is a schematic diagram of the other side of the buckle of this utility model;
[0015] Figure 5 This is a schematic diagram of the rear structure of the circuit breaker;
[0016] Figure 6 for Figure 5 A magnified view of a portion of point B in the middle.
[0017] In the diagram: 1. Circuit breaker; 2. Mounting base; 20. First limiting part; 21. Limiting block; 22. Second limiting part; 23. Slide groove; 24. Inclined surface; 3. Buckle; 30. Lifting hole; 31. Groove; 32. First hook; 33. Second hook; 34. Sliding block; 35. Protrusion. Detailed Implementation
[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model.
[0019] Please see Figure 1-6 This utility model provides an embodiment of a circuit breaker latching mechanism, including a circuit breaker 1, a mounting base 2 on one side of the circuit breaker 1, and a latch 3 slidably mounted on the mounting base 2; both sides of the mounting base 2 are provided with sliding grooves 23, and the latch 3 slides in the sliding grooves 23 via a slider 34; the latch 3 is also provided with a slot 31, and a first hook 32 is provided in the slot 31, one end of which is connected to the latch 3, and the other end of which is suspended in the slot 31; the suspended end of the first hook 32 is hooked onto a limiting block 21 provided on the mounting base 2, and the inner wall of the slot 31 is in contact with the outer wall of the limiting block 21.
[0020] In summary, since the first hook 32 of the buckle 3 is suspended except for the connection end with the buckle 3, the first hook 32 has a stronger deformation capacity, so that the first hook 32 can be smoothly connected and separated from the limiting block 21. This makes the buckle 3 move more easily and conveniently on the mounting base 2, effectively avoiding the problem of the buckle being broken due to excessive force during the pulling process. In addition, the side of the limiting block 21 facing the hook body of the first hook 32 can also be set as an inclined surface to guide the hook body to be smoothly connected or separated from the limiting block 22.
[0021] To facilitate the separation of the latch 3 from the fixing base and the removal of the circuit breaker 1 from the fixing base, the mounting base 2 is further provided with a first limiting part 20, and a second hook 33 is provided in the slot 31. The outer end face of the second hook 33 abuts against the first limiting part 20 to prevent the latch 3 from sliding further outward of the circuit breaker 1. Furthermore, the mounting base 2 is also provided with a second limiting part 22, and the second hook 33 hooks onto the second limiting part 22 to prevent the latch 3 from sliding inward of the circuit breaker 1.
[0022] Based on this, since the second hook 33 moves between the first limiting part 20 and the second limiting part 22, and the slider 34 is inserted into the slide groove 23, it provides sufficient space for the buckle 3 to move while avoiding the problem of the buckle 3 falling off the mounting base 2. Therefore, by prying the buckle 3 so that the buckle 3 slides outward on the mounting base 2 a greater distance, it is easier for the buckle 3 to quickly separate from the fixed base.
[0023] In addition, since the first limiting part 20 is also provided with an inclined surface 24, and the second hook 33 is guided into the space between the first limiting part 20 and the second limiting part 22 through the inclined surface 24, when the buckle 3 is installed, the second hook 33 smoothly enters the space between the first limiting part 20 and the second limiting part 22 along the inclined surface 24, so as to facilitate the assembly of the buckle 3 and the mounting base 2.
[0024] To facilitate the processing of the limiting block 21 and the two limiting parts, the outer end face of the limiting block 21 is flush with the outer end face of the second limiting part 22, and the height of the first limiting part 20 is equal to the height of the limiting block 21. Therefore, the limiting block 21 and the two limiting parts do not have a complex structure, thus reducing the processing difficulty of the mounting base 2.
[0025] In addition, since the buckle 3 is also provided with a lifting hole 30, it is convenient to insert a screwdriver into the lifting hole 30 to make the buckle 3 move. At the same time, the lifting hole 30 is also provided with a protrusion 35, which strengthens the structural strength of the lifting hole 30 and prevents the screwdriver from damaging the lifting hole 30.
[0026] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.
Claims
1. A latching mechanism for a circuit breaker, characterized in that: Includes a circuit breaker (1), one side of which is provided with a mounting base (2), and a buckle (3) is slidably mounted on the mounting base (2); The mounting base (2) is provided with sliding grooves (23) on both sides, and the buckle (3) slides in the sliding grooves (23) through the provided slider (34); The buckle (3) is also provided with a slot (31), and a first hook (32) is provided in the slot (31), one end of which is connected to the buckle (3) and the other end of which is suspended in the slot (31). The suspended end of the first hook (32) is hooked onto the limiting block (21) provided on the mounting base (2), and the inner wall surface of the slot (31) is in contact with the outer wall surface of the limiting block (21).
2. The latching mechanism of a circuit breaker according to claim 1, characterized in that: The mounting base (2) is also provided with a first limiting part (20), and the slot (31) is also provided with a second hook (33), and the outer end face of the second hook (33) abuts against the first limiting part (20) to prevent the buckle (3) from continuing to slide to the outside of the circuit breaker (1).
3. The latching mechanism of a circuit breaker according to claim 2, characterized in that: The mounting base (2) is also provided with a second limiting part (22), and the second hook (33) is hooked on the second limiting part (22) to prevent the buckle (3) from sliding to the inside of the circuit breaker (1).
4. The latching mechanism of a circuit breaker according to claim 3, characterized in that: The first limiting part (20) is also provided with an inclined surface (24), and the second hook (33) is guided to enter between the first limiting part (20) and the second limiting part (22) through the inclined surface (24).
5. The latching mechanism of a circuit breaker according to claim 4, characterized in that: The outer end face of the limiting block (21) is flush with the outer end face of the second limiting part (22), and the height of the first limiting part (20) is equal to the height of the limiting block (21).
6. The latching mechanism of a circuit breaker according to claim 5, characterized in that: The buckle (30) is also provided with a lifting hole (30), and the lifting hole (30) is also provided with a protrusion (35).