Convenient and fast installation structure of miniature circuit breaker

Abstract

The utility model discloses a convenient quick-mounting structure of a miniature circuit breaker, which relates to the technical field of circuit breakers and comprises a circuit breaker, the upper end of the front side of the circuit breaker is in threaded connection with a plurality of threaded rods, the front side of each threaded rod is fixedly connected with a connecting plate, and the front side of each connecting plate is fixedly connected with a rotating handle. The lower end of the front side of the circuit breaker is slidably connected with a plurality of sliding rods, the tail ends of the sliding rods penetrate through the front side of the circuit breaker and are fixedly connected with a second pressing plate, the front sides of the sliding rods are fixedly connected with fixing blocks, arc-shaped clamping grooves are formed in the left and right ends of the upper side of each fixing block in a penetrating mode, and the front side of the circuit breaker and the upper ends of the sliding rods are rotatably connected with two rotating clamping plates. Through the arrangement of the threaded rod, the connecting plate, the rotating handle, the sliding rod, the fixing block, the arc-shaped clamping groove and the rotating clamping plate, line connection can be effectively carried out, the use of more mounting tools and fixing screws is avoided, the time spent on line connection is effectively shortened, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, specifically to a convenient and quick-installation structure for a miniature circuit breaker. Background Technology

[0002] A circuit breaker is an electrical device used to protect circuits from current damage caused by faults such as overload and short circuit. Its main function is to detect abnormal current and automatically disconnect the circuit when a problem occurs, in order to prevent equipment damage, electrical fires or other dangers. When the current exceeds the set rated value, the thermal element inside the circuit breaker will disconnect the circuit due to the increase in temperature, thereby avoiding circuit overload damage. In the event of a short circuit, the current increases sharply, and the electromagnetic mechanism inside the circuit breaker will be triggered quickly to disconnect the circuit, preventing wires from overheating and fires. Some circuit breakers can automatically resume operation after the fault is cleared, reducing manual intervention.

[0003] When installing a circuit breaker, the circuit needs to be connected to the circuit breaker. However, connecting circuit breakers to circuit breakers is inconvenient, requiring numerous installation tools and screws, making the process cumbersome, time-consuming, and inefficient. Furthermore, the small screws are prone to falling off or being lost during installation, affecting the circuit breaker's proper installation. Some circuit breakers need to be installed on mounting rails inside electrical boxes, but the flange thickness of these rails varies. This makes it difficult to quickly and easily secure circuit breakers to rails with varying flange thicknesses, resulting in poor compatibility. To address these issues, a convenient and quick-installation structure for miniature circuit breakers is proposed. Utility Model Content

[0004] To address the aforementioned technical problems, a convenient and quick-installation structure for miniature circuit breakers is provided. This solves the problem that current circuit breaker installations require connecting the circuit to the breaker, which is inconvenient due to the numerous installation tools and screws required, making the connection process cumbersome, time-consuming, and inefficient. Furthermore, the small size of the screws makes them prone to falling off or being lost during installation, affecting the proper installation of the circuit breaker. Additionally, some circuit breakers require installation on mounting rails inside electrical boxes, and the flange thickness of these rails varies, making it difficult to quickly and easily secure circuit breakers to rails with different flange thicknesses, resulting in poor compatibility.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a convenient and quick-installation structure for a miniature circuit breaker, comprising a circuit breaker, a T-shaped mounting groove provided at the middle of the rear side of the circuit breaker, several wire holes provided at the middle of the upper and lower sides of the circuit breaker, a first pressure plate slidably connected to the lower front end of the upper wire hole, several threaded rods threadedly connected to the upper front end of the circuit breaker, the ends of the threaded rods penetrating the front side of the circuit breaker and rotatably connected to the front side of the first pressure plate, a connecting plate fixedly connected to the front side of the threaded rods, a rotating handle fixedly connected to the front side of the connecting plate, and several sliding rods slidably connected to the lower front end of the circuit breaker, the ends of the sliding rods penetrating the circuit breaker. A second pressure plate is fixedly connected to the front side of the circuit breaker. The slide rod is slidably connected to the inner wall of the wire hole. A fixing block is fixedly connected to the front side of the slide rod. An arc-shaped slot is opened through the upper left and right ends of the fixing block. Two rotating plates are rotatably connected to the front side of the circuit breaker and the upper end of the slide rod. A second fixing plate is fixedly connected to the lower front end of the circuit breaker. A telescopic rod is fixedly connected to the upper side of the second fixing plate. A limit plate is fixedly connected to the upper side of the telescopic rod. The lower end of the rotating plate is engaged with the upper side of the limit plate. A second spring is sleeved on the surface of the telescopic rod. The lower end of the second spring is fixedly connected to the upper side of the second fixing plate. The upper end of the second spring is fixedly connected to the lower side of the limit plate.

[0006] Preferably, a first spring is fixedly connected to each of the four front corners of the T-shaped mounting groove, and a top plate is fixedly connected to the rear side of the four first springs.

[0007] Preferably, a first fixing plate is fixedly connected to both the left and right sides of the top plate, and a handle groove is provided through the front right side of the first fixing plate.

[0008] Preferably, a first contact plate is fixedly connected to the lower rear side of the inner side of the upper wire hole, and the surface of the first contact plate is provided with several grooves.

[0009] Preferably, a second contact plate is fixedly connected to the upper rear side of the inner side of the lower wire hole, and the surface of the second contact plate is provided with several grooves.

[0010] Preferably, a handle is rotatably connected to the front left end of the circuit breaker.

[0011] Preferably, a test button is provided on the front right end of the circuit breaker, and a reset button is provided on the front of the circuit breaker and above the test button.

[0012] Compared with the prior art, the advantages of this utility model are as follows: By setting up a threaded rod, connecting plate, rotating handle, sliding rod, fixing block, arc-shaped slot and rotating plate, this utility model can effectively connect the circuit, avoid using more installation tools and fixing screws, simplify the connection work, effectively reduce the time spent on circuit connection, improve work efficiency, and at the same time prevent fixing screws from falling off or being lost during installation, thus preventing them from affecting the normal installation of the circuit breaker. By setting up a T-shaped mounting slot, top plate, first fixing plate, handle slot and first spring, the circuit breaker can be quickly fixed on mounting guide rails with different flange plate thicknesses, improving the adaptability of the circuit breaker. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the internal structure of the center hole in this utility model;

[0015] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0016] The numbers on the map are:

[0017] 1. Circuit breaker; 2. Handle; 3. Test button; 4. Reset button; 5. T-shaped mounting slot; 6. First spring; 7. Top plate; 8. First fixing plate; 9. Handle slot; 10. Wire hole; 11. First contact plate; 12. First pressure plate; 13. Threaded rod; 14. Connecting plate; 15. Rotating handle; 16. Second contact plate; 17. Slide rod; 18. Second pressure plate; 19. Fixing block; 20. Arc-shaped slot; 21. Rotating plate; 22. Second fixing plate; 23. Telescopic rod; 24. Limiting plate; 25. Second spring. Detailed Implementation

[0018] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0019] Reference Figure 1-3 As shown, a convenient and quick-installation structure for a miniature circuit breaker includes a circuit breaker 1, a handle 2 rotatably connected to the front left end of the circuit breaker 1, a test button 3 provided on the front right end of the circuit breaker 1, and a reset button 4 provided on the front of the circuit breaker 1 and above the test button 3.

[0020] Specifically, a T-shaped mounting groove 5 is provided at the middle of the rear side of the circuit breaker 1. First springs 6 are fixedly connected to the four front corners of the interior of the T-shaped mounting groove 5. A top plate 7 is fixedly connected to the rear of the four first springs 6, effectively fixing the position of the circuit breaker 1. First fixing plates 8 are fixedly connected to both the left and right sides of the top plate 7. A handle groove 9 is provided through the front right side of the first fixing plate 8 to accommodate mounting rails with different flange thicknesses. Several wire holes 10 are provided at the middle of the upper and lower sides of the circuit breaker 1. The interior of the upper wire hole 10... A first contact plate 11 is fixedly connected to the lower rear end. Several grooves are provided on the surface of the first contact plate 11 to increase the friction with the incoming line and prevent the incoming line from loosening. A first pressure plate 12 is slidably connected to the lower front end of the inner side of the upper wire hole 10. Several threaded rods 13 are threadedly connected to the upper front end of the circuit breaker 1. The ends of the threaded rods 13 pass through the front side of the circuit breaker 1 and are rotatably connected to the front side of the first pressure plate 12. A connecting plate 14 is fixedly connected to the front side of the threaded rods 13. A rotating handle 15 is fixedly connected to the front side of the connecting plate 14 to facilitate the connection of the incoming line.

[0021] Specifically, a second contact plate 16 is fixedly connected to the upper rear side of the inner side of the lower wire hole 10. The surface of the second contact plate 16 has several grooves to increase friction with the outgoing wire and prevent loosening. Several sliding rods 17 are slidably connected to the lower front side of the circuit breaker 1. The ends of the sliding rods 17 penetrate the front side of the circuit breaker 1 and are fixedly connected to a second pressure plate 18. The sliding rods 17 are slidably connected to the inner wall of the wire hole 10. A fixing block 19 is fixedly connected to the front side of the sliding rods 17. Arc-shaped slots 20 are provided on both the left and right ends of the upper side of the fixing block 19, allowing the fixing block 19 to be pushed further backward to secure the outgoing wire. Two rotating clamping plates 21 are rotatably connected to the upper end of the slide rod 17 on the front side of the circuit breaker 1. A second fixing plate 22 is fixedly connected to the lower front end of the circuit breaker 1. A telescopic rod 23 is fixedly connected to the upper side of the second fixing plate 22. A limit plate 24 is fixedly connected to the upper side of the telescopic rod 23. The lower end of the rotating clamping plate 21 is engaged with the upper side of the limit plate 24. A second spring 25 is sleeved on the surface of the telescopic rod 23. The lower end of the second spring 25 is fixedly connected to the upper side of the second fixing plate 22. The upper end of the second spring 25 is fixedly connected to the lower side of the limit plate 24, effectively preventing the rotating clamping plate 21 from rotating.

[0022] Working principle: When installing circuit breaker 1, first pull the handle slots 9 at both ends forward to move the top plate 7 forward. The first spring 6 is compressed, increasing the installation space inside the T-shaped mounting slot 5. Then, install circuit breaker 1 on the corresponding mounting rail. After moving it to the appropriate position, release the handle slots 9. Under the elastic force of the first spring 6, the first pressure plate 12 moves backward to abut against the side of the mounting rail and fixes circuit breaker 1. After the position of circuit breaker 1 is fixed, connect the circuit by inserting the incoming wire into the upper wire hole 10 and rotating the handle 15. The threaded rod 13 pushes the first pressure plate 12 to move backward and fixes the incoming wire with the first contact plate 11, completing the incoming wire connection. The outgoing wire is inserted into the wire hole 10 at the lower end. The fixing block 19 is slid backward so that the second pressure plate 18 abuts against the outgoing wire. The rotating clamping plate 21 is rotated. Under the guidance of the arc-shaped clamping groove 20, the fixing block 19 will move further backward to fix the outgoing wire. The limiting plate 24 moves upward under the elastic force of the second spring 25 and engages with the lower end of the rotating clamping plate 21 to prevent the rotating clamping plate 21 from rotating and reduce the pressure of the second pressure plate 18 on the outgoing wire.

[0023] 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 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A convenient and quick mounting structure of a miniature circuit breaker, comprising a circuit breaker (1), characterized in that: The rear middle position of the circuit breaker (1) is provided with a T-shaped mounting slot (5), and the upper and lower middle positions of the circuit breaker (1) are provided with a plurality of wire holes (10), the inner front lower end of the upper wire hole (10) is slidably connected with a first pressing plate (12), the front upper end of the circuit breaker (1) is threadedly connected with a plurality of threaded rods (13), the distal end of the threaded rod (13) penetrates the front side of the circuit breaker (1) and is rotatably connected with the front side of the first pressing plate (12), the front side of the threaded rod (13) is fixedly connected with a connecting plate (14), the front side of the connecting plate (14) is fixedly connected with a rotating handle (15), the front lower end of the circuit breaker (1) is slidably connected with a plurality of slide rods (17), the distal end of the slide rod (17) penetrates the front side of the circuit breaker (1) and is fixedly connected with a second pressing plate (18), the slide rod (17) is slidably connected with the inner wall of the wire hole (10), the front side of the slide rod (17) is fixedly connected with a fixed block (19), the upper side of the fixed block (19) is provided with an arc-shaped clamping groove (20) at the left and right ends, the upper end of the slide rod (17) is rotatably connected with two rotating clamping plates (21) on the front side of the circuit breaker (1), the lower front end of the circuit breaker (1) is fixedly connected with a second fixed plate (22), the upper side of the second fixed plate (22) is fixedly connected with a telescopic rod (23), the upper side of the telescopic rod (23) is fixedly connected with a limiting plate (24), the lower end of the rotating clamping plate (21) is clamped with the upper side of the limiting plate (24), the surface of the telescopic rod (23) is sleeved with a second spring (25), the lower end of the second spring (25) is fixedly connected with the upper side of the second fixed plate (22), and the upper end of the second spring (25) is fixedly connected with the lower side of the limiting plate (24).

2. The quick installation structure of a miniature circuit breaker according to claim 1, characterized in that: The inner front side of the T-shaped mounting slot (5) is fixedly connected with a first spring (6) at four corners.

3. The quick installation structure of a miniature circuit breaker according to claim 2, characterized in that: The left and right sides of the top plate (7) are fixedly connected with a first fixed plate (8), and the front right end of the first fixed plate (8) is provided with a handle slot (9).

4. The quick installation structure of a miniature circuit breaker according to claim 1, characterized in that: The inner rear lower end of the upper wire hole (10) is fixedly connected with a first touch plate (11), and the surface of the first touch plate (11) is provided with a plurality of grooves.

5. The quick installation structure of a miniature circuit breaker according to claim 1, characterized in that: The inner rear upper end of the lower wire hole (10) is fixedly connected with a second touch plate (16), and the surface of the second touch plate (16) is provided with a plurality of grooves.

6. The quick installation structure of a miniature circuit breaker according to claim 1, characterized in that: The front left end of the circuit breaker (1) is rotatably connected with a handle (2).

7. The quick installation structure of a miniature circuit breaker according to claim 1, characterized in that: A test button (3) is arranged on the front right end of the circuit breaker (1), and a reset button (4) is arranged on the front side of the circuit breaker (1) and the upper end of the test button (3).

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