A buckle type quick installation structure of a miniature circuit breaker
By using a snap-on quick-installation structure and a combination of L-shaped plates and elastic components, the problem of inconvenient disassembly and assembly of existing miniature circuit breakers is solved, achieving rapid installation and stable connection, and improving efficiency and stability.
Patent Information
- Application Number
- CN202522626258.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-11
AI Technical Summary
The existing miniature circuit breakers require screws to be tightened during disassembly and assembly, which makes operation inconvenient and reduces disassembly and assembly efficiency and stability.
It adopts a snap-on quick-installation structure, including installation components and connecting components. Utilizing the combination design of L-shaped plates, connecting columns, elastic elements and insert plates, it can achieve quick installation and disassembly without tightening screws.
It improves the efficiency of circuit breaker disassembly and assembly, enhances installation stability, simplifies the installation process, and strengthens practicality and stability.
Smart Images

Figure CN224934700U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit breaker technology, specifically to a snap-on quick-installation structure for a miniature circuit breaker. Background Technology
[0002] Miniature circuit breakers are widely used in daily life, effectively protecting electrical equipment and preventing damage due to overvoltage or overcurrent when power lines malfunction. Circuit breakers are characterized by advanced structure, reliable performance, strong breaking capacity, and compact, aesthetically pleasing design. They can also be used for infrequent switching and connection operations.
[0003] Chinese Utility Model Patent Publication No. CN210984648U discloses a miniature circuit breaker, including a circuit breaker body. A slot is formed at the bottom of one side of the circuit breaker body. Arched blocks are symmetrically arranged vertically on both sides of the slot. A switch is installed in the center of each arched block, and an arc-shaped cover plate corresponding to the switch is rotatably connected to the bottom of the arched blocks. A concealed handle is formed on the outer side of one end of the arc-shaped cover plate. A fault indicator light is fixed at the top of one side of the circuit breaker body, and a running indicator light is located directly below the fault indicator light. This miniature circuit breaker, through first and second heat dissipation holes, provides heat dissipation openings on both sides of the circuit breaker body, allowing the large amount of heat generated during the arc extinguishing process to dissipate quickly. The ports of the first and second heat dissipation holes are protected by a first and second mesh heat dissipation plate, preventing safety hazards. The switch on the outside of the circuit breaker body is protected by an arc-shaped cover plate to prevent accidental contact.
[0004] While the aforementioned circuit breakers can prevent accidental contact, they lack a snap-fit mechanism for easy installation and removal. This means that users must tighten screws to install and remove the circuit breakers, which is inconvenient and reduces the efficiency of installation and removal. Therefore, we propose a snap-fit quick-installation structure for miniature circuit breakers. Summary of the Invention
[0005] In view of the shortcomings of the prior art, this utility model provides a snap-on quick installation structure for miniature circuit breakers to solve the problems mentioned in the background.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a snap-fit quick-installation structure for a miniature circuit breaker, comprising an installation component and a connecting component. The installation component includes an internal cabinet mounting plate. An L-shaped plate, a connecting post, and a plug plate are fixedly mounted on the side wall of the internal cabinet mounting plate near the connecting component. A through groove is provided on the outer wall of the connecting post. An elastic element is provided on both sides of the connecting post. A connecting plate is fixedly mounted on one end of the elastic element near the internal cabinet mounting plate. A movable groove is provided on the outer wall of the plug plate. An elastic element is provided on the inner wall of the movable groove. The connecting assembly includes a body disposed on the top of the L-shaped plate, a slot being provided at the bottom of the body, a straight plate being fixedly mounted on the side wall of the body near the inner mounting plate of the cabinet, a mating groove being provided on the side wall of the body near the inner mounting plate of the cabinet, and a groove being provided on the inner wall of the mating groove.
[0007] Through the above technical solution, by setting up installation components, connecting components, cabinet mounting plate, L-shaped plate, connecting column, body, straight plate, docking groove, and groove structure, the user can first place the body on top of the L-shaped plate during the installation process of the circuit breaker. Then, with two fingers of the other hand, press down on one of the elastic elements to deform it towards the middle of the insertion plate. This makes it easy for the user to push the straight plate so that it moves between the elastic element and the cabinet mounting plate. After releasing the elastic element, the body is fixedly connected to the cabinet mounting plate through the body. This achieves the effect of quick installation and removal of the circuit breaker through the snap-fit structure, improving the user's installation and maintenance efficiency of the circuit breaker.
[0008] Preferably, the shape of the slot is adapted to the shape of the L-shaped plate, and the main body is fixedly connected to the mounting plate inside the cabinet through the L-shaped plate and the mating groove respectively.
[0009] Through the above technical solution, the L-shaped plate and slot structure allows the circuit breaker to be easily fixed by the user during installation by inserting the slot into the L-shaped plate. Then, the user can hold the main body with one hand and complete the installation with the other hand, without having to tighten screws. This simplifies the installation process and improves the practicality of the circuit breaker.
[0010] Preferably, the side wall of the main body near the mounting plate inside the cabinet is also provided with a square groove, and the shape of the square groove is adapted to the shape of the connecting column.
[0011] Through the above technical solution, the square groove and connecting column structure allows the user to align the square groove on the circuit breaker with the connecting column during use. This facilitates the user to squeeze the two sets of elastic elements to deform the elastic elements, thereby allowing the square groove to be inserted into the connecting column and the elastic elements to fit against the inner wall of the groove to fix the circuit breaker, thus improving the stability of the circuit breaker after installation.
[0012] Preferably, the outer wall of the straight plate is provided with a fixing groove, and the shape of the fixing groove is adapted to the shape of the insert plate.
[0013] Through the above technical solution, the fixed slot and plug-in plate structure allows the circuit breaker to retract into the movable slot when the user squeezes the elastic element two during use, by using the fixed slot and plug-in plate to connect the two. Then, by using the plug-in plate and fixed slot to connect the side wall of the straight plate away from the cabinet mounting plate to the side wall of the elastic element two near the main body, the circuit breaker is fixed at three points. This also makes it easier for the user to complete the installation of the entire circuit breaker, thereby ensuring the stable operation of the circuit breaker.
[0014] Preferably, the shape of the end of the elastic element away from the connecting plate is adapted to the shape of the groove, and there are four elastic elements. The four elastic elements are divided into two groups, and the two groups of elastic elements are symmetrically distributed along the outer wall of the connecting column.
[0015] Through the above technical solution, by setting up a structure of four elastic elements, two elastic elements are connected by a connecting plate. This makes it easy for the user to pinch one set of elastic elements with two fingers, and the other set of elastic elements will also deform. This allows for quick adjustment of the angle and shape of the elastic elements, ensuring that the elastic elements can be inserted into the mating slots and grooves to complete the mating effect, and further improving the user's installation efficiency of the circuit breaker.
[0016] Preferably, the outer wall of the second elastic element is slidably connected to the inner wall of the movable groove, and there are two second elastic elements, both of which are symmetrically distributed along the outer wall of the insert plate.
[0017] Through the above technical solution, by setting two elastic elements, the circuit breaker can be limited by the two elastic elements after installation, thereby preventing the circuit breaker from becoming loose or even falling off the mounting plate inside the cabinet during operation, thus ensuring the normal use of the circuit breaker.
[0018] Compared with the prior art, this utility model provides a snap-on quick-installation structure for miniature circuit breakers, which has the following advantages: 1. The snap-on quick-installation structure of this miniature circuit breaker, through the set installation components, cabinet mounting plate, L-shaped plate, elastic element one, and elastic element two, allows the user to simply press elastic element one during the disassembly and assembly process. When elastic element one disengages from the groove, the main body will tilt. Then, the user can press elastic element two to remove the entire main body, thus eliminating the need to tighten screws to complete the disassembly and assembly work, thereby improving the user's disassembly and assembly efficiency of the miniature circuit breaker. 2. The snap-on quick-installation structure of this miniature circuit breaker, through its main body, straight plate, mating groove, recess, and slot structure, allows the main body to be fixed at three points after installation. This reduces the chance of the miniature circuit breaker becoming loose or even detaching from the mounting plate inside the cabinet after installation, thereby improving the stability of the miniature circuit breaker after installation. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the L-shaped plate structure of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the cross-sectional structure of the main body of this utility model.
[0020] Among them: 1. Installation components; 101. Cabinet mounting plate; 102. L-shaped plate; 103. Connecting column; 104. Through groove; 105. Elastic component one; 106. Connecting plate; 107. Insert plate; 108. Movable groove; 109. Elastic component two; 2. Connecting components; 201. Body; 202. Straight plate; 203. Butt groove; 204. Groove; 205. Slot. Detailed Implementation
[0021] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] like Figure 1-5 As shown, the present invention provides a snap-on quick installation structure for a miniature circuit breaker, including an installation component 1 and a connecting component 2. The installation component 1 includes an inner cabinet mounting plate 101. An L-shaped plate 102, a connecting post 103, and a plug plate 107 are fixedly mounted on the side wall of the inner cabinet mounting plate 101 near the connecting component 2. A through groove 104 is provided on the outer wall of the connecting post 103. Elastic elements 105 are provided on both sides of the connecting post 103. A connecting plate 106 is fixedly mounted on one end of the elastic element 105 near the inner cabinet mounting plate 101. A movable groove 108 is provided on the outer wall of the plug plate 107. An elastic element 2 109 is provided on the inner wall of the movable groove 108. The connecting component 2 includes a body 201 disposed on the top of the L-shaped plate 102. A slot 205 is provided at the bottom of the body 201. A straight plate 202 is fixedly mounted on the side wall of the body 201 near the cabinet mounting plate 101. A mating groove 203 is provided on the side wall of the body 201 near the cabinet mounting plate 101. A groove 204 is provided on the inner wall of the mating groove 203.
[0023] The advantage is that, through the structure of the installation component 1, connection component 2, cabinet mounting plate 101, L-shaped plate 102, connecting column 103, body 201, straight plate 202, docking groove 203, and recess 204, the user can first place the body 201 on top of the L-shaped plate 102 during the installation process. Then, with two fingers of the other hand, press one of the elastic elements 109 to deform it towards the middle of the insertion plate 107. This makes it easier for the user to push the straight plate 202 so that it moves between the elastic element 109 and the cabinet mounting plate 101. After releasing the elastic element 109, the body 201 is fixedly connected to the cabinet mounting plate 101 through the body 201. This achieves the effect of quick installation and removal of the circuit breaker through the snap-fit structure, improving the user's installation and maintenance efficiency.
[0024] Specifically: the shape of the slot 205 is adapted to the shape of the L-shaped plate 102, and the body 201 is fixedly connected to the mounting plate 101 inside the cabinet through the L-shaped plate 102 and the docking groove 203 respectively.
[0025] The advantage is that, through the L-shaped plate 102 and slot 205 structure, the circuit breaker can be easily initially fixed by the user during installation by inserting the slot 205 into the L-shaped plate 102. Then, the user can hold the main body 201 with one hand and complete the installation with the other hand, without having to tighten screws. This simplifies the installation process and improves the practicality of the circuit breaker.
[0026] Specifically: a square groove is provided on the side wall of the main body 201 near the mounting plate 101 inside the cabinet, and the shape of the square groove is adapted to the shape of the connecting column 103.
[0027] The advantage is that, through the structure of the square groove and connecting post 103, the user can align the square groove on the main body 201 with the connecting post 103 during the use of the circuit breaker. This makes it easy for the user to squeeze the two sets of elastic elements 105 to deform the elastic elements 105, thereby allowing the square groove to be inserted into the connecting post 103 and the elastic elements 105 to fit against the inner wall of the groove 204 to fix the circuit breaker, thus improving the stability of the circuit breaker after installation.
[0028] Specifically: the outer wall of the straight plate 202 is provided with a fixing groove, and the shape of the fixing groove is adapted to the shape of the insert plate 107.
[0029] The advantage is that, through the structure of the fixed slot and the plug plate 107, the circuit breaker can be used in operation by using the fixed slot and the plug plate 107 to allow the user to squeeze the elastic element 109, causing the elastic element 109 to retract into the movable slot 108. Then, by using the plug plate 107 and the fixed slot to insert the straight plate 202 away from the mounting plate 101 in the cabinet and the elastic element 109 close to the body 201, the body 201 is fixed at three points. This also makes it easier for the user to complete the installation of the entire circuit breaker, thereby ensuring the stable operation of the circuit breaker.
[0030] Specifically: the shape of the end of the elastic element 105 away from the connecting plate 106 is adapted to the shape of the groove 204. There are four elastic elements 105, which are divided into two groups, and both groups of elastic elements 105 are symmetrically distributed along the outer wall of the connecting column 103.
[0031] The advantage is that by setting up a structure of four elastic elements 105, and connecting two elastic elements 105 with a connecting plate 106, it is easy for the user to pinch one set of elastic elements 105 with two fingers, and the other set of elastic elements 105 will also deform, thereby realizing the quick adjustment of the angle and shape of the elastic elements 105. This ensures that the elastic elements 105 can be inserted into the docking slots 203 and grooves 204 to complete the docking effect, further improving the user's installation efficiency of the circuit breaker.
[0032] Specifically: the outer wall of the second elastic element 109 is slidably connected to the inner wall of the movable groove 108. There are two second elastic elements 109, and both second elastic elements 109 are symmetrically distributed along the outer wall of the insert plate 107.
[0033] The advantage is that, through the structure of the two elastic elements 109, the circuit breaker is limited by the two elastic elements 109 after installation, thereby preventing the circuit breaker from becoming loose or even falling off the mounting plate 101 inside the cabinet during operation, thus ensuring the normal use of the circuit breaker.
[0034] Working principle: When installing the circuit breaker, the user first aligns the slot 205 with the top of the L-shaped plate 102, so that the body 201 is supported by the L-shaped plate 102. The user can hold the body 201 with one hand and pinch the elastic element 105 with two fingers of the other hand to deform it, so that the elastic element 105 is inserted into the mating groove 203 and fits tightly against the inner wall of the groove 204. Finally, by pinching the elastic element 209, the elastic element 209 is retracted into the movable groove 108. Then, the body 201 is fixedly connected to the cabinet mounting plate 101 through the straight plate 202, which facilitates the user's installation of the circuit breaker and improves the user's efficiency in installing and removing the circuit breaker. At the same time, the installation process of the circuit breaker is simple and convenient for the user to operate. The body 201 is fixed at three points, which improves the stability of the circuit breaker after installation.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A snap-fit quick-installation structure for a miniature circuit breaker, comprising an installation component (1) and a connection component (2), characterized in that: The mounting assembly (1) includes an inner mounting plate (101). An L-shaped plate (102), a connecting post (103), and a plug plate (107) are fixedly mounted on the side wall of the inner mounting plate (101) near the connecting assembly (2). A through groove (104) is provided on the outer wall of the connecting post (103). An elastic element (105) is provided on both sides of the connecting post (103). A connecting plate (106) is fixedly mounted on one end of the elastic element (105) near the inner mounting plate (101). A movable groove (108) is provided on the outer wall of the plug plate (107). An elastic element (109) is provided on the inner wall of the movable groove (108). The connecting component (2) includes a body (201) disposed on the top of the L-shaped plate (102), a slot (205) is provided at the bottom of the body (201), a straight plate (202) is fixedly mounted on the side wall of the body (201) near the cabinet mounting plate (101), a docking groove (203) is provided on the side wall of the body (201) near the cabinet mounting plate (101), and a groove (204) is provided on the inner wall of the docking groove (203).
2. The snap-fit quick-installation structure for a miniature circuit breaker according to claim 1, characterized in that: The shape of the slot (205) is adapted to the shape of the L-shaped plate (102), and the body (201) is fixedly connected to the cabinet mounting plate (101) through the L-shaped plate (102) and the docking groove (203).
3. The snap-fit quick-installation structure for a miniature circuit breaker according to claim 1, characterized in that: The main body (201) has a square groove on the side wall near the cabinet mounting plate (101), and the shape of the square groove is adapted to the shape of the connecting column (103).
4. The snap-on quick-installation structure for a miniature circuit breaker according to claim 1, characterized in that: The outer wall of the straight plate (202) is provided with a fixing groove, and the shape of the fixing groove is adapted to the shape of the insert plate (107).
5. The snap-fit quick-installation structure for a miniature circuit breaker according to claim 1, characterized in that: The shape of the end of the elastic element (105) away from the connecting plate (106) is adapted to the shape of the groove (204). There are four elastic elements (105). The four elastic elements (105) are divided into two groups, and both groups of elastic elements (105) are symmetrically distributed along the outer wall of the connecting column (103).
6. The snap-fit quick-installation structure for a miniature circuit breaker according to claim 1, characterized in that: The outer wall of the second elastic element (109) is slidably connected to the inner wall of the movable groove (108). There are two second elastic elements (109), and both second elastic elements (109) are symmetrically distributed along the outer wall of the insert plate (107).
Citation Information
Patent Citations
Miniature circuit breaker
CN210984648U
