Circuit breaker for operation of power distribution system

Abstract

The utility model discloses a circuit breaker for operation of a power distribution system, and relates to the technical field of power equipment, in particular to a circuit breaker for operation of a power distribution system, which comprises a circuit breaker body and a mounting plate, the left side of the circuit breaker body is fixedly connected with a clamping block, and the right side of the circuit breaker body is provided with a clamping groove; a groove is formed in the back face of the circuit breaker body, the inner side of the groove is fixedly connected with a limiting block, and the top of the groove is movably sleeved with a fixing pin. According to the circuit breaker for operation of the power distribution system, through cooperative use of the clamping blocks and the clamping grooves, when a plurality of circuit breaker bodies are used together, the clamping blocks are inserted into the clamping grooves, so that the plurality of circuit breaker bodies are conveniently connected together, gaps among the circuit breaker bodies are reduced, and the space occupied by the circuit breaker bodies is reduced; and meanwhile, a plurality of circuit breaker bodies are connected together, so that the circuit breaker bodies can be installed more firmly.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a circuit breaker used for operation of a power distribution system. Background Art

[0002] A circuit breaker is a switch device that can close, carry and break the current under normal circuit conditions and close, carry and break the current under abnormal circuit conditions within a specified time. Circuit breakers can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, etc., and automatically cut off the circuit when they have serious overloads or short circuits and undervoltage faults. Its function is equivalent to the combination of fuse switches and over-underheating relays. Moreover, it is generally not necessary to change parts after breaking the fault current.

[0003] Circuit breakers are generally installed on the mounting plate in the distribution box. Existing circuit breakers are usually installed and fixed with bolts, and multiple bolts need to be tightened with a screwdriver. The installation efficiency is relatively low, and when the notch of the bolt is damaged, it is difficult to unscrew the bolt, which affects the disassembly of the circuit breaker. In addition, when multiple circuit breakers need to be installed, the circuit breakers are separated from each other. For this reason, we provide a circuit breaker for the operation of the distribution system. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a circuit breaker for operation of a power distribution system, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a circuit breaker for operation of a power distribution system, comprising a circuit breaker body and a mounting plate, a card block is fixedly connected to the left side of the circuit breaker body, a card slot is provided on the right side of the circuit breaker body, a groove is provided on the back side of the circuit breaker body, a limit block is fixedly connected to the inner side of the groove, a fixing pin is movably sleeved on the top of the groove, a reset spring is movably sleeved on the outside of the fixing pin, a first inclined block is fixedly connected to the top of the fixing pin, and a second inclined block is clamped on the bottom of the first inclined block.

[0006] Optionally, the structure of the card block is T-shaped, and the card block matches the card slot.

[0007] Optionally, a fixing ring is fixedly sleeved outside the fixing pin, the reset spring is located on the top of the fixing ring, and the reset spring is in a compressed state.

[0008] Optionally, the bottom surface of the inclined block 1 is an inclined surface, the top surface of the inclined block 2 is an inclined surface, and the inclined block 1 and the inclined block 2 match each other.

[0009] Optionally, a slide groove is provided on the top of the circuit breaker body, a slider is clamped inside the slide groove, and the bottom of the slider is fixedly connected to the top of the second inclined block.

[0010] Optionally, a limiting groove is provided on the front side of the mounting plate, and the limiting groove matches with the limiting block; a fixing groove is provided on the top of the mounting plate, and the fixing groove matches with the fixing pin.

[0011] The utility model provides a circuit breaker for operation of a power distribution system, which has the following beneficial effects:

[0012] 1. The circuit breaker used for the operation of the power distribution system is used in combination with the card block and the card slot. When multiple circuit breaker bodies are used together, the card block is inserted into the inside of the card slot, which is convenient for connecting the multiple circuit breaker bodies together, reducing the gaps between the circuit breaker bodies, and reducing the space occupied by the circuit breaker bodies. At the same time, connecting the multiple circuit breaker bodies together can make the circuit breaker bodies more firmly installed. By arranging a limit block on the back of the circuit breaker body, when the circuit breaker body is installed, the limit block will be inserted into the inside of the limit slot, which is convenient for positioning the circuit breaker body, so that the fixing pin can be aligned with the fixing slot, which is convenient for installing the circuit breaker body and can prevent the circuit breaker body from moving left and right.

[0013] 2. The circuit breaker used for the operation of the power distribution system, through the coordinated use of the fixing pin and the fixing groove, uses the reset spring to give the fixing pin a downward elastic force, so that the fixing pin is inserted into the inside of the limit block, so that the circuit breaker body can be installed and fixed quickly and conveniently. Through the coordinated use of the inclined block 1 and the inclined block 2, when the circuit breaker body is to be disassembled, it is only necessary to push the slider to the right, so that the slider drives the inclined block 2 to move to the right, so that the inclined block 2 gradually lifts the inclined block 1, and then the inclined block 1 drives the fixing pin to move upward, so that the fixing pin is separated from the fixing groove, so that the circuit breaker body can be disassembled quickly and conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the utility model from another angle;

[0016] Figure 3 It is a schematic diagram of the structure of the utility model in a rear cross-section;

[0017] Figure 4 It is a structural schematic diagram of the mounting plate of the utility model.

[0018] In the figure: 1. Circuit breaker body; 2. Card block; 3. Card slot; 4. Groove; 5. Limit block; 6. Fixing pin; 7. Fixing ring; 8. Reset spring; 9. Inclined block 1; 10. Inclined block 2; 11. Slide groove; 12. Sliding block; 13. Mounting plate; 14. Limiting slot; 15. Fixing slot. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1 The utility model provides a technical solution: a circuit breaker for operation of a power distribution system, comprising a circuit breaker body 1 and a mounting plate 13. A card block 2 is fixedly connected to the left side of the circuit breaker body 1, and a card slot 3 is provided on the right side of the circuit breaker body 1. Through the coordinated use of the card block 2 and the card slot 3, when multiple circuit breaker bodies 1 are used together, the card block 2 is plugged into the inside of the card slot 3, so that multiple circuit breaker bodies 1 can be conveniently connected together, the gap between the circuit breaker bodies 1 can be reduced, and the space occupied by the circuit breaker bodies 1 can be reduced. The structure of the card block 2 is T-shaped, and the card block 2 matches the card slot 3.

[0021] See also Figure 2 , Figure 3 , Figure 4 A groove 4 is provided on the back of the circuit breaker body 1, and a limit block 5 is fixedly connected to the inner side of the groove 4. By setting the limit block 5 on the back of the circuit breaker body 1, the limit block 5 will be inserted into the inner side of the limit groove 14, which is convenient for positioning the circuit breaker body 1, so that the fixing pin 6 can be aligned with the fixing groove 15, which is convenient for installing the circuit breaker body 1. The top of the groove 4 is movably sleeved with a fixing pin 6, and the outside of the fixing pin 6 is fixedly sleeved with a fixing ring 7. The reset spring 8 is located at the top of the fixing ring 7, and the reset spring 8 is in a compressed state. By setting the reset spring 8, the reset spring 8 will give The downward elastic force of the fixing pin 6 prevents the fixing pin 6 from moving upward and prevents the fixing pin 6 from loosening from the inside of the fixing groove 15. The outside of the fixing pin 6 is movably sleeved with a reset spring 8. The front of the mounting plate 13 is provided with a limit groove 14, which matches the limit block 5. The top of the mounting plate 13 is provided with a fixing groove 15, which matches the fixing pin 6. Through the coordinated use of the fixing pin 6 and the fixing groove 15, the reset spring 8 is used to give the fixing pin 6 a downward elastic force, so that the fixing pin 6 is inserted into the inside of the limit block 5, so that the circuit breaker body 1 can be installed and fixed conveniently and quickly.

[0022] See also Figure 3The top of the fixing pin 6 is fixedly connected with an inclined block 9, and the bottom of the inclined block 9 is clamped with an inclined block 2 10. The bottom surface of the inclined block 9 is an inclined surface, and the top surface of the inclined block 2 10 is an inclined surface. The inclined block 19 and the inclined block 2 10 match each other. Through the coordinated use of the inclined block 19 and the inclined block 2 10, when the inclined block 2 10 moves to the right, the inclined block 2 10 will gradually lift the inclined block 19, and then the inclined block 19 drives the fixing pin 6 to move upward, so that the fixing pin 6 is separated from the fixing groove 15, which is convenient and quick to disassemble the circuit breaker body 1. A sliding groove 11 is provided at the top of the circuit breaker body 1, and a slider 12 is clamped inside the sliding groove 11. The bottom of the slider 12 is fixedly connected to the top of the inclined block 2 10. By setting the slider 12, when the slider 12 is pushed to move to the right, the slider 12 can drive the inclined block 2 10 to move to the right, which is convenient for driving the inclined block 2 10.

[0023] In summary, when the circuit breaker for the operation of the power distribution system is used, the slider 12 is pushed to the right to move the inclined block 10 to the right to lift the inclined block 1 9, so that the fixing pin 6 is retracted into the inside of the circuit breaker body 1, and then the groove 4 is clamped to the mounting plate 13, so that the limit block 5 is inserted into the limit groove 14, and then the slider 12 is pushed to the left to move the inclined block 10 out from the bottom of the inclined block 1 9. At this time, the fixing pin 6 is inserted into the inside of the fixing groove 15 under the action of the reset spring 8 to complete the fixation of the circuit breaker body 1. When there are multiple circuit breaker bodies 1, the card block 2 is inserted into the card slot 3 for connection.

[0024] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A circuit breaker for use in a power distribution system, comprising a circuit breaker body (1) and a mounting plate (13), characterized in that: A clamping block (2) is fixedly connected to the left side of the circuit breaker body (1), a clamping slot (3) is provided on the right side of the circuit breaker body (1), a groove (4) is provided on the back side of the circuit breaker body (1), a limit block (5) is fixedly connected to the inner side of the groove (4), a fixing pin (6) is movably sleeved on the top of the groove (4), a reset spring (8) is movably sleeved on the outside of the fixing pin (6), a first inclined block (9) is fixedly connected to the top of the fixing pin (6), and a second inclined block (10) is clamped on the bottom of the first inclined block (9).

2. A circuit breaker for operation of a power distribution system according to claim 1, characterized in that: The structure of the card block (2) is T-shaped, and the card block (2) matches the card slot (3).

3. A circuit breaker for operation of a power distribution system according to claim 1, characterized in that: The fixing ring (7) is fixedly sleeved on the outside of the fixing pin (6), the return spring (8) is located on the top of the fixing ring (7), and the return spring (8) is in a compressed state.

4. A circuit breaker for operation of a power distribution system according to claim 1, characterized in that: The bottom surface of the inclined block 1 (9) is an inclined surface, the top surface of the inclined block 2 (10) is an inclined surface, and the inclined block 1 (9) and the inclined block 2 (10) match each other.

5. A circuit breaker for operation of a power distribution system according to claim 1, characterized in that: The top of the circuit breaker body (1) is provided with a slide groove (11), the interior of the slide groove (11) is clamped with a slider (12), and the bottom of the slider (12) is fixedly connected to the top of the second inclined block (10).

6. A circuit breaker for power distribution system operation according to claim 1, characterized in that: A limiting groove (14) is provided on the front of the mounting plate (13), and the limiting groove (14) matches the limiting block (5). A fixing groove (15) is provided on the top of the mounting plate (13), and the fixing groove (15) matches the fixing pin (6).

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