Electrical circuit breaker convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of circuit breakers, and discloses an electrical circuit breaker convenient to disassemble and assemble, which comprises a mounting plate, wherein the top of the mounting plate is provided with an electrical circuit breaker body; the bottom of the electrical circuit breaker body is provided with a connecting assembly. The connecting assembly comprises a clamping groove formed in the top of a mounting plate; the round rod is fixedly arranged at the bottom of the electrical circuit breaker body; the round rod is inserted into the rectangular shell, and the rectangular shell is rotationally connected with the round rod; according to the circuit breaker, the connecting assembly controls the cylinder to rotate, so that the extrusion block pushes the two moving plates to be away from each other, and the two clamping blocks extend out of the interior of the rectangular shell and are inserted into the clamping grooves to complete installation. And compared with an existing device, operation can be completed by one hand during installation, and the disassembly and assembly efficiency is higher. According to the circuit breaker, the limiting assembly is attached to the outer side wall of the electrical circuit breaker body through the limiting shell, rotation of the electrical circuit breaker body can be better limited, and therefore installation is firmer.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, specifically to an electrical circuit breaker that is easy to install and disassemble. Background Technology

[0002] A circuit breaker is a switching device that can close, carry, and interrupt current under normal or abnormal circuit conditions. Circuit breakers are important electrical devices for the protection and operation of power systems. They can be used to distribute electrical energy, infrequently start asynchronous motors, and protect power lines and motors. Circuit breakers are basically composed of several parts, including a conductive main circuit, insulating support components, an arc-extinguishing chamber, and an operating mechanism. Circuit breakers are classified into high-voltage circuit breakers and low-voltage circuit breakers according to their application range.

[0003] Chinese utility model CN222051663U discloses an electrical circuit breaker that is easy to assemble and disassemble. It features a movable connection structure. The principle is to press the limiting plate to retract into the interior of the square frame and compress the spring so that the square frame and the internal groove of the limiting plate are aligned. Then, the square frame is fitted onto the outside of the round rod. Releasing the limiting plate and the spring rebound pushes the limiting plate into the groove on the round rod, thus fixing the square frame.

[0004] However, existing devices require pressing two limit plates simultaneously to mount the square frame onto the round rod, necessitating two-handed operation and resulting in low installation efficiency. Therefore, to address the aforementioned issues, a more convenient circuit breaker was designed that can be operated with one hand, improving work efficiency. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an electrical circuit breaker that is easy to install and disassemble, with the advantage of higher installation efficiency, and solves the problem that existing devices require two-handed operation and have low installation efficiency.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an electrical circuit breaker that is easy to assemble and disassemble, comprising: a mounting plate with an electrical circuit breaker body disposed on its top; a connecting assembly disposed on the bottom of the electrical circuit breaker body, the connecting assembly comprising: a slot formed on the top of the mounting plate; a round rod fixedly disposed on the bottom of the electrical circuit breaker body; a rectangular shell inserted into the round rod and rotatably connected to the round rod; a pressing block disposed inside the rectangular shell and fixedly connected to the round rod through it; a movable plate disposed inside the rectangular shell; a spring with both ends connected to the movable plate; a locking block disposed on one side of the movable plate, with one end penetrating the inner sidewall of the rectangular shell and inserted into the slot; and a limiting assembly disposed on one side of the mounting plate for limiting the rotation of the electrical circuit breaker body.

[0009] In some embodiments, the two ends of the extrusion block are flat and fit against one side of the moving plate.

[0010] In some embodiments, the connecting assembly further includes: a crossbar disposed inside the spring and having both ends passing through the movable plate and connected to the inner wall of the rectangular shell.

[0011] In some embodiments, the connecting assembly further includes: a second spring disposed inside the slot; and a stop plate disposed at one end of the second spring.

[0012] In some embodiments, the limiting component includes: a rectangular rod disposed on one side of the mounting plate; a spring three disposed inside the rectangular rod and connected at one end to the inner sidewall of the rectangular rod; a telescopic rod at one end inserted inside the rectangular rod and connected to the spring three; and a limiting plate rotatably disposed at one end of the telescopic rod.

[0013] In some embodiments, the inner wall of the limiting plate is abutted against the outer wall of the electrical circuit breaker body.

[0014] In some embodiments, the limiting component further includes a knob disposed on the outer side wall of the limiting plate.

[0015] In some embodiments, the limiting component further includes: a groove formed at the bottom of the rectangular rod; and a top of a slider passing through the groove and connected to the bottom of one end of the telescopic rod.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides an electrical circuit breaker that is easy to install and disassemble, and has the following beneficial effects:

[0018] 1. In this circuit breaker, the connecting assembly controls the rotation of a cylinder, causing a pressing block to push two moving plates away, allowing two locking blocks to extend from inside the rectangular shell and insert into the locking slots to complete the installation. Compared to existing devices, installation can be completed with one hand, resulting in higher assembly and disassembly efficiency.

[0019] 2. In this circuit breaker, the limiting component fits against the outer wall of the circuit breaker body through the limiting shell, which can better limit the rotation of the circuit breaker body, thus making the installation more secure. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the connection between the card slot and the rectangular shell of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the rectangular shell of this utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the rectangular rod of this utility model.

[0024] In the diagram: 11. Mounting plate; 12. Circuit breaker body;

[0025] 2. Connecting assembly; 21. Slot; 22. Round rod; 23. Rectangular shell; 24. Pressing block; 25. Moving plate; 26. Spring one; 261. Crossbar; 27. Locking block; 28. Spring two; 29. ​​Support plate;

[0026] 3. Limiting component; 31. Rectangular rod; 32. Spring three; 33. Telescopic rod; 34. Limiting plate; 35. Rotary knob; 36. Slide groove; 37. Slider. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0028] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0029] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] In related technologies, the principle is to press the limiting plate back into the square frame and compress the spring, aligning the square frame with the through groove inside the limiting plate. The square frame is then fitted onto the outside of the round rod. Releasing the limiting plate and allowing the spring to spring back, pushing the limiting plate into the groove on the round rod, secures the square frame. However, existing devices require pressing two limiting plates simultaneously to fit the square frame onto the round rod, necessitating two hands and resulting in low installation efficiency.

[0031] To address some of the problems in related technologies, this application provides an electrical circuit breaker that is easy to install and disassemble. When the electrical circuit breaker body 12 needs to be installed, the mounting plate 11 is first fixed in a specific position. Then, the rectangular shell 23 at the bottom of the electrical circuit breaker body 12 is inserted into the slot 21. At this time, the inner wall of the slot 21 fits against the outer wall of the rectangular shell 23, restricting the rotation of the rectangular shell 23. The electrical circuit breaker body 12 can then be rotated 90 degrees, which simultaneously drives the round rod 22 to rotate. The pressing block 24 on the outer wall of the round rod 22 will push the moving plate 25 away from the inside of the rectangular shell 23 during the rotation until both ends of the pressing block 24 fit against the moving plate 25. At the same time, the tension spring 26 extends. During the movement of the moving plate 25, the locking block 27 is pushed out from the inside of the rectangular shell 23 and inserted into the inside of the slot 21 to restrict the rectangular shell 23 and prevent it from detaching from the slot 21. Finally, the limiting component 3 is used to restrict the rotation of the electrical circuit breaker body 12, thereby completing the installation. When disassembly is required, simply rotate the circuit breaker body 12 ninety degrees so that the two ends of the pressing block 24 are misaligned with the moving plate 25. At this time, the spring 26 retracts and pulls the moving plate 25 closer, so that the locking block 27 disengages from the slot 21 and releases the restriction. Then the rectangular shell 23 can be pulled out from the slot 21, completing the disassembly of the circuit breaker body 12.

[0032] This application is described below with reference to the accompanying drawings and specific embodiments:

[0033] This application provides an electrical circuit breaker that is easy to assemble and disassemble, comprising: a mounting plate 11 with an electrical circuit breaker body 12 disposed on its top; a connecting component 2 disposed on the bottom of the electrical circuit breaker body 12, the connecting component 2 comprising: a slot 21 formed on the top of the mounting plate 11; a round rod 22 fixedly disposed on the bottom of the electrical circuit breaker body 12; a rectangular shell 23 inserted into the round rod 22 and rotatably connected to the round rod 22; a pressing block 24 disposed inside the rectangular shell 23 and fixedly connected to the round rod 22 through it; a movable plate 25 disposed inside the rectangular shell 23; a spring 26 with both ends connected to the movable plate 25; a locking block 27 disposed on one side of the movable plate 25, with one end penetrating the inner sidewall of the rectangular shell 23 and inserted into the slot 21; and a limiting component 3 disposed on one side of the mounting plate 11 for limiting the rotation of the electrical circuit breaker body 12.

[0034] Specifically, the working principle of the electrical circuit breaker body 12 mainly includes overload protection and short-circuit protection. A circuit breaker is a switching device capable of closing, carrying, and interrupting current under normal circuit conditions, and closing, carrying, and interrupting current under abnormal circuit conditions within a specified time. Its basic structure includes a contact system, an arc-extinguishing system, an operating mechanism, a trip unit, and a housing.

[0035] When installing the circuit breaker body 12, first fix the mounting plate 11 in a specific position. Then, insert the rectangular shell 23 at the bottom of the circuit breaker body 12 into the slot 21. At this time, the inner wall of the slot 21 fits against the outer wall of the rectangular shell 23, restricting the rotation of the rectangular shell 23. Then, the circuit breaker body 12 can be rotated 90 degrees, and the round rod 22 will rotate accordingly. The pressing block 24 on the outer wall of the round rod 22 will push the moving plate 25 away from the inside of the rectangular shell 23 during the rotation until the two ends of the pressing block 24 fit against the moving plate 25. At the same time, the tension spring 26 extends. During the movement of the moving plate 25, it pushes the locking block 27 out of the inside of the rectangular shell 23 and inserts it into the inside of the slot 21 to restrict the rectangular shell 23 and prevent it from coming out of the slot 21. Finally, the limiting component 3 is used to restrict the rotation of the circuit breaker body 12, thereby completing the installation. When disassembly is required, simply rotate the circuit breaker body 12 ninety degrees so that the two ends of the pressing block 24 are misaligned with the moving plate 25. At this time, the spring 26 retracts and pulls the moving plate 25 closer, so that the locking block 27 disengages from the slot 21 and releases the restriction. Then the rectangular shell 23 can be pulled out from the slot 21, completing the disassembly of the circuit breaker body 12.

[0036] In some embodiments, the two ends of the extrusion block 24 are flat and fit against one side of the movable plate 25.

[0037] The planar design allows for better contact with the moving plate 25, thus stabilizing the extrusion block 24 and preventing it from rotating.

[0038] In some embodiments, the connecting assembly 2 further includes: a crossbar 261 disposed inside the spring 26, and having both ends passing through the movable plate 25 and connected to the inner wall of the rectangular shell 23.

[0039] When in use, the design of the crossbar 261 can stabilize the extension and retraction of the spring 26, while also limiting the movement trajectory of the moving plate 25.

[0040] In some embodiments, the connecting component 2 further includes: a second spring 28 disposed inside the slot 21; and a stop plate 29 disposed at one end of the second spring 28.

[0041] When in use, after the locking block 27 is inserted into the slot 21, the spring 28 rebounds and pushes the abutment 29 against the locking block 27, so that the moving plate 25 is pressed against the pressing block 24, which can clamp the pressing block 24 and stabilize its position.

[0042] In some embodiments, the limiting component 3 includes: a rectangular rod 31 disposed on one side of the mounting plate 11; a spring 32 disposed inside the rectangular rod 31 and connected at one end to the inner sidewall of the rectangular rod 31; a telescopic rod 33 inserted at one end into the rectangular rod 31 and connected to the spring 32; and a limiting plate 34 rotatably disposed at one end of the telescopic rod 33.

[0043] When in use, the limiting plate 34 can be pulled to pull the telescopic rod 33 out from inside the rectangular rod 31, causing the spring 32 to stretch. Then, the limiting plate 34 can be rotated and released. After that, the spring 32 retracts, causing the telescopic rod 33 to retract into the rectangular rod 31, causing the inner side wall of the limiting plate 34 to fit against the outer side wall of the circuit breaker body 12, which can restrict the rotation of the circuit breaker body 12.

[0044] In some embodiments, the inner wall of the limiting plate 34 is abutted against the outer wall of the electrical circuit breaker body 12.

[0045] The fitted design during use can better stabilize the electrical circuit breaker body 12 and prevent it from rotating.

[0046] In some embodiments, the limiting component 3 further includes a knob 35 disposed on the outer side wall of the limiting plate 34.

[0047] The design of the knob 35 makes it easy to grip and allows for better control of the rotation of the limiting plate 34. At the same time, the grooves on the surface of the knob 35 can increase friction when rotating.

[0048] In some embodiments, the limiting component 3 further includes: a groove 36 formed at the bottom of the rectangular rod 31; and a slider 37 with its top passing through the groove 36 and connected to the bottom of one end of the telescopic rod 33.

[0049] The design of the slide 36 and slider 37 during use prevents the telescopic rod 33 from being pulled out from inside the rectangular rod 31 when it moves.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," and "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0051] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0052] 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. An electrical circuit breaker that is easy to install and remove, comprising: Mounting plate (11), with an electrical circuit breaker body (12) mounted on its top; The characteristic feature is that a connecting assembly (2) is provided at the bottom of the electrical circuit breaker body (12), and the connecting assembly (2) includes: A card slot (21) is provided on the top of the mounting plate (11); A round rod (22) is fixedly installed at the bottom of the electrical circuit breaker body (12); A rectangular shell (23) is inserted into the round rod (22) and is rotatably connected to the round rod (22); The extrusion block (24) is disposed inside the rectangular shell (23) and is fixedly connected to the round rod (22) through which it passes; A movable plate (25) is disposed inside the rectangular shell (23); Spring 1 (26) is connected to the movable plate (25) at both ends; The card block (27) is located on one side of the movable plate (25) and one end penetrates the inner wall of the rectangular shell (23) and is inserted into the inside of the card slot (21); A limiting component (3) is provided on one side of the mounting plate (11) to limit the rotation of the electrical circuit breaker body (12).

2. The electrical circuit breaker that is easy to install and disassemble according to claim 1, characterized in that: The two ends of the extrusion block (24) are flat and fit against one side of the moving plate (25).

3. The electrical circuit breaker that is easy to install and disassemble according to claim 1, characterized in that: The connection component (2) further includes: A crossbar (261) is located inside the spring (26) and its two ends pass through the movable plate (25) and connect to the inner wall of the rectangular shell (23).

4. The electrical circuit breaker that is easy to install and disassemble according to claim 1, characterized in that: The connection component (2) further includes: Spring 2 (28) is disposed inside the slot (21); A stop plate (29) is disposed at one end of the second spring (28).

5. The electrical circuit breaker that is easy to install and disassemble according to claim 1, characterized in that: The limiting component (3) includes: A rectangular rod (31) is disposed on one side of the mounting plate (11); Spring 3 (32) is disposed inside the rectangular rod (31) and one end is connected to the inner side wall of the rectangular rod (31); The telescopic rod (33) has one end inserted into the interior of the rectangular rod (31) and connected to the spring (32); A limiting plate (34) is rotatably mounted on one end of the telescopic rod (33).

6. The electrical circuit breaker that is easy to install and disassemble according to claim 5, characterized in that: The inner wall of the limiting plate (34) is attached to the outer wall of the electrical circuit breaker body (12).

7. The electrical circuit breaker that is easy to install and disassemble according to claim 5, characterized in that: The limiting component (3) also includes: A knob (35) is provided on the outer wall of the limiting plate (34).

8. The electrical circuit breaker that is easy to install and disassemble according to claim 5, characterized in that: The limiting component (3) also includes: A groove (36) is formed at the bottom of the rectangular rod (31); The top of the slider (37) passes through the groove (36) and is connected to the bottom of one end of the telescopic rod (33).

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