Switching-on and switching-off mechanism of magnetically controlled circuit breaker

Abstract

The utility model relates to the technical field of switching-on mechanisms, and discloses a switching-on and switching-off mechanism of a magnetic control circuit breaker, which comprises a fixed plate, a shell is arranged on the upper part of the fixed plate in a sliding manner, a driving lever is rotationally connected to the front side in the shell, and a spring I is fixedly connected to the lower end of the driving lever; a fixing block is fixedly connected to the rear side of the shifting rod in the fixing plate, the upper end of the first spring is fixedly connected to the interior of the fixing block, a rotating rod is fixedly connected to the left side of the interior of the shell, a lever is slidably connected to the periphery of the rotating rod, a firing pin is rotatably connected to the rear end of the lever, and the periphery of the firing pin is sleeved with a second spring; the second spring is fixedly connected to the rear side of the interior of the shell, and the front end of the lever is rotationally connected with a first connecting rod. According to the utility model, through the cooperation of the deflector rod, the fixed block, the push rod, the rotating rod, the lever, the first connecting rod, the second connecting rod, the spring piece, the first spring, the firing pin, the second spring and the limiting rod, the function of disconnecting a circuit of equipment is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of closing mechanisms, in particular to an opening and closing mechanism of a magnetically controlled circuit breaker. Background Art

[0002] In the power system, the magnetically controlled circuit breaker is an important protective device used to protect electrical equipment and lines from damage caused by overload and short circuit. Its opening and closing mechanism is one of the key components used to control the opening and closing state of the circuit breaker.

[0003] Existing technology: Traditional magnetically controlled circuit breakers use electromagnets as control elements, and realize the opening and closing action of the circuit breaker by controlling the on and off of the electromagnet. Some advanced magnetically controlled circuit breakers use electronic control technology to realize precise control and intelligent protection functions of the circuit breaker. The opening and closing mechanism of the magnetically controlled circuit breaker can also improve the opening and closing speed, operation reliability and durability of the circuit breaker by optimizing the design of mechanical connectors. Some advanced magnetically controlled circuit breakers use new magnetic materials to improve the performance and efficiency of electromagnets.

[0004] Traditional magnetically controlled circuit breakers use multiple springs to control the circuit breaking structure inside the circuit breaker. Due to the damping effect of the multiple springs, the circuit breaking response time of the circuit breaker is prolonged. Therefore, an opening and closing mechanism of a magnetically controlled circuit breaker is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an opening and closing mechanism of a magnetically controlled circuit breaker, aiming to improve the problem in the prior art that multiple springs lead to prolonged response time of the circuit breaker.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an opening and closing mechanism of a magnetically controlled circuit breaker, comprising a fixed plate, a shell is slidably provided on the upper part of the fixed plate, a lever is rotatably connected to the front side of the inner part of the shell, a spring 1 is fixedly connected to the lower end of the lever, a fixed block is fixedly connected to the rear side of the lever inside the fixed plate, the upper end of the spring 1 is fixedly connected to the inside of the fixed block, a rotating rod is fixedly connected to the left side of the inner part of the shell, a lever is slidably connected to the outer periphery of the rotating rod, a striker is rotatably connected to the rear end of the lever, and a spring 2 is sleeved on the outer periphery of the striker. The second spring is fixedly connected to the inner rear side of the shell, the front end of the lever is rotatably connected to the connecting rod 1, the front end of the connecting rod 1 is rotatably connected to the pushing rod, the pushing rod is fixedly connected to the left side of the lower end of the shift rod, the front end of the lever is rotatably connected to the connecting rod 2, the lower end of the connecting rod 2 is slidably connected to a spring sheet, the front end of the spring sheet is fixedly connected to the wire 1, the lower end of the spring 2 and the rear end of the spring sheet abut against each other, the inner rear side of the shell is fixedly connected to a grid plate, the inner rear side of the shell is fixedly connected to a limiting rod, and a splicing assembly is provided on the upper part of the shell.

[0007] Further, the splicing assembly includes a card block, which is fixedly connected to the upper right side of the shell, and a connecting block is fixedly connected to the upper left side of the shell, a buckle is provided on the upper part of the connecting block, a pull rod is rotatably connected to the upper part of the connecting block, and a slider is rotatably connected to the upper end of the pull rod, a sliding rod is fixedly connected to the inside of the buckle, and the sliding rod is slidably connected to the inside of the slider, a spring three is provided on the outer periphery of the sliding rod, and the left end of the buckle is engaged with the inside of the card block.

[0008] Furthermore, both front and rear sides of the upper portion of the fixed plate are fixedly connected with slide rails, and both of the slide rails are slidably connected to the bottom of the shell.

[0009] Furthermore, two protrusions are provided in the middle of the rotating rod, and the two protrusions are located on the left and right sides of the lever.

[0010] Furthermore, a bulletproof block is provided at the front end of the spring sheet.

[0011] Furthermore, the grid plate is located at the upper portion of the lower end of the second spring.

[0012] Furthermore, the diameter of the firing pin is slightly smaller than the inner diameter of the second spring.

[0013] Furthermore, a handle is fixedly connected to the upper portion of the buckle.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, spring 2 drives the striker to slide downward, the striker pulls the rear end of the lever to move downward, the front end of the lever pulls connecting rod 1 and connecting rod 2 to lift upward, connecting rod 2 pulls the spring sheet to disconnect the circuit, the grid plate absorbs the arc of the disconnected circuit, connecting rod 1 pulls the push rod to rotate counterclockwise, the push rod and spring 1 drive the lever to rotate counterclockwise, thereby completing the function of disconnecting the circuit.

[0016] 2. In the utility model, the handle is pulled to the left so that the buckle is buckled inside the block, and the slider pulls the pull rod to rotate and change the angle. The buckle forces the slider to slide and squeeze the spring three to contract. Then the handle is released so that the spring three loses resistance and naturally rebounds to push the buckle to slide to the right so that the two shells are close to each other and clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional schematic diagram of an opening and closing mechanism of a magnetically controlled circuit breaker proposed by the utility model;

[0018] Figure 2 A schematic diagram of the structure of a striker of an opening and closing mechanism of a magnetically controlled circuit breaker proposed by the utility model;

[0019] Figure 3 A schematic diagram of the structure of a lever of an opening and closing mechanism of a magnetically controlled circuit breaker proposed in the utility model;

[0020] Figure 4 A schematic diagram of the structure of a grid plate of an opening and closing mechanism of a magnetically controlled circuit breaker proposed in the utility model;

[0021] Figure 5 The utility model is a schematic structural diagram of a buckle of an opening and closing mechanism of a magnetically controlled circuit breaker.

[0022] Legend:

[0023] 1. Fixed plate; 2. Shell; 3. Push rod; 4. Fixed block; 5. Push rod; 6. Turn rod; 7. Lever; 8. Connecting rod one; 9. Connecting rod two; 10. Spring sheet; 11. Spring one; 12. Strike pin; 13. Spring two; 14. Limit rod; 15. Wire one; 16. Slide rail; 17. Grid plate; 18. Block; 19. Connecting block; 20. Pull rod; 21. Slider; 22. Slide rod; 23. Buckle; 24. Spring three; 25. Handle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-Figure 4The utility model provides an embodiment: an opening and closing mechanism of a magnetically controlled circuit breaker, comprising a fixed plate 1, the fixed plate 1 is used to install a plurality of housings 2, the upper part of the fixed plate 1 is slidably provided with the housing 2, the upper front and rear sides of the fixed plate 1 are fixedly connected with slide rails 16, the two slide rails 16 are used to assist in the installation of the plurality of housings 2, the two slide rails 16 are slidably connected to the bottom of the housing 2, the inner front side of the housing 2 is rotatably connected with a lever 3, the lever 3 is used to drive the push rod 5 to return, the lower end of the lever 3 is fixedly connected with a spring 11, the spring 11 is used to pull the lever 3 back, and the rear side of the inner lever 3 of the fixed plate 1 is fixedly connected with a fixed block 4, the fixed block 4 is used to fix one end of the spring 11, the upper end of the spring 11 is fixedly connected to the inside of the fixed block 4, the inner left side of the shell 2 is fixedly connected with a rotating rod 6, the rotating rod 6 is used to limit the sliding range of the lever 7, the outer periphery of the rotating rod 6 is slidably connected with the lever 7, the lever 7 is used to transmit the force of the striker 12, the middle part of the rotating rod 6 is provided with two protrusions, the two protrusions can prevent the lever 7 from sliding in the direction parallel to the rotating rod 6, the two protrusions are located on the left and right sides of the lever 7, the rear end of the lever 7 is rotatably connected with the striker 12, the striker 12 is used to pull the lever 7 to slide, the outer periphery of the striker 12 is provided with a spring 2 13, the spring 2 13 is used to drive the striker The needle 12 moves, and the diameter of the striker 12 is slightly smaller than the inner diameter of the spring 2 13. The striker 12 can slide inside the spring 2 13 without getting stuck. The spring 2 13 is fixedly connected to the inner rear side of the housing 2. The front end of the lever 7 is rotatably connected to the connecting rod 1 8. The connecting rod 1 8 is used to pull the push rod 5 to move. The front end of the connecting rod 1 8 is rotatably connected to the push rod 5. The push rod 5 is used to pull the lever 3 to rotate. The push rod 5 is fixedly connected to the left side of the lower end of the lever 3. The front end of the lever 7 is rotatably connected to the connecting rod 2 9. The connecting rod 2 9 is used to pull the spring sheet 10 to bounce up and disengage from the abutment with the spring 2 13. The lower end of the connecting rod 2 9 is slidably connected to the spring sheet 10. The spring sheet 10 is used to In order to conduct electricity in contact with the spring 2 13, a bulletproof block is provided at the front end of the spring sheet 10, which can prevent the spring sheet 10 from bouncing excessively. The front end of the spring sheet 10 is fixedly connected with a wire 15. Since the wire 15 is conductive, the lower end of the spring 2 13 and the rear end of the spring sheet 10 abut against each other. A grid plate 17 is fixedly connected to the inner rear side of the shell 2. The grid plate 17 is used to absorb the arc generated when the spring 2 13 and the spring sheet 10 are separated. The grid plate 17 is located at the upper part of the lower end of the spring 2 13. A limit rod 14 is fixedly connected to the inner rear side of the shell 2. The limit rod 14 can prevent the lever 7 from hitting the grid plate 17. A splicing component is provided on the upper part of the shell 2.

[0026] Reference Figure 1 and Figure 5The splicing assembly includes a card block 18, which is used to clamp the buckle 23. The card block 18 is fixedly connected to the upper right side of the shell 2. The upper left side of the shell 2 is fixedly connected with a connecting block 19, which is used to connect the pull rod 20. The upper part of the connecting block 19 is provided with a buckle 23, which is used to fix the internal structure and buckle inside the card block 18. The upper part of the connecting block 19 is rotatably connected with the pull rod 20, and the pull rod 20 is used to connect the slider 21. The upper end of the pull rod 20 is rotatably connected with the slider 2 1. The slider 21 is used to slide on the periphery of the slider 22. The inside of the buckle 23 is fixedly connected with the slider 22. The slider 22 is used to provide sliding support for the slider 21 and structural support for the spring three 24. The slider 22 is slidably connected to the inside of the slider 21. The outer periphery of the slider 22 is provided with a spring three 24. The spring three 24 is used to push the slider 21 back to its original position. The left end of the buckle 23 is engaged with the inside of the block 18. The upper part of the buckle 23 is fixedly connected with a handle 25. The handle 25 is used to pull the buckle 23 to move.

[0027] Working principle: slide and install the required multiple shells 2 on the two slide rails 16 on the upper part of the fixed plate 1, then fit the two shells 2 together, pull the right handle 25 to pull the right buckle 23 to the left and buckle it inside the left block 18, at this time, the right slider 21 pulls the right pull rod 20 to rotate and change the angle, the right buckle 23 forces the right slider 21 to slide and squeeze the right spring three 24 to contract, then release the handle 25 to make the spring three 24 lose resistance and naturally rebound to push the buckle 23 to slide to the right so that the two shells 2 are close to each other and clamped, when the current suddenly increases during use of the equipment, the spring two 13 will pull the striker 12 to slide downward, the striker 12 pulls the rear end of the lever 7 to slide downward, the front end of the lever 7 will lift upward, the lever 7 pulls the connecting rod one 8 and the connecting rod two 9 to move upward, the connecting rod one 8 pulls the push rod 5 inverse The lever 3 rotates clockwise. At the beginning, the force arm formed between the spring 11 and the lever 3 is a labor-intensive type compared to the force arm between the lever 3, the push rod 5 and the connecting rod 8. When the lever 3 rotates beyond the vertical direction, the force arm formed between the spring 11 and the lever 3 becomes a labor-saving type, and the lever 3 can be pulled by the spring 11 to rotate counterclockwise. At this time, the connection point between the lever 7 and the connecting rod 8 moves up to the highest point, and at the same time, the connecting rod 2 9 pulls the spring sheet 10 to move upward. When the spring sheet 10 is separated from and abuts against the spring 2 13, the circuit will be disconnected. When the spring sheet 10 is separated from the surface of the spring 2 13, an arc will be generated, and the arc will be absorbed by the grid 17 to prevent the internal structure of the shell 2 from being damaged by the arc. The entire device can be reset to the initial state by moving the lever 3 clockwise. At this time, the force arm formed between the spring 11 and the lever 3 will become a labor-intensive type again, and the circuit is connected.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An opening and closing mechanism of a magnetically controlled circuit breaker, comprising a fixing plate (1), characterized in that: A shell (2) is slidably mounted on the upper part of the fixing plate (1), a lever (3) is rotatably mounted on the front side of the shell (2), a spring (11) is fixedly mounted on the lower end of the lever (3), a fixing block (4) is fixedly mounted on the rear side of the lever (3) inside the fixing plate (1), an upper end of the spring (11) is fixedly mounted inside the fixing block (4), a rotating rod (6) is fixedly mounted on the left side of the shell (2), a lever (7) is slidably mounted on the outer periphery of the rotating rod (6), a striker (12) is rotatably mounted on the rear end of the lever (7), and a spring (13) is fixedly mounted on the inner rear side of the shell (2). The front end of the lever (7) is rotatably connected to a connecting rod 1 (8), the front end of the connecting rod 1 (8) is rotatably connected to a push rod (5), the push rod (5) is fixedly connected to the left side of the lower end of the shift rod (3), the front end of the lever (7) is rotatably connected to a connecting rod 2 (9), the lower end of the connecting rod 2 (9) is slidably connected to a spring sheet (10), the front end of the spring sheet (10) is fixedly connected to a wire 1 (15), the lower end of the spring 2 (13) and the rear end of the spring sheet (10) are in contact with each other, the inner rear side of the shell (2) is fixedly connected to a grid plate (17), the inner rear side of the shell (2) is fixedly connected to a limit rod (14), and the upper part of the shell (2) is provided with a splicing component.

2. The opening and closing mechanism of a magnetically controlled circuit breaker according to claim 1, characterized in that: The splicing assembly comprises a clamping block (18), wherein the clamping block (18) is fixedly connected to the upper right side of the shell (2), and the upper left side of the shell (2) is fixedly connected to a connecting block (19), and a buckle (23) is arranged on the upper part of the connecting block (19), and the upper part of the connecting block (19) is rotatably connected to a pull rod (20), and the upper end of the pull rod (20) is rotatably connected to a slider (21), and the inside of the buckle (23) is fixedly connected to a slide rod (22), and the slide rod (22) is slidably connected to the inside of the slider (21), and the outer periphery of the slide rod (22) is provided with a spring three (24), and the left end of the buckle (23) is engaged with the inside of the clamping block (18).

3. The opening and closing mechanism of a magnetically controlled circuit breaker according to claim 1, characterized in that: Slide rails (16) are fixedly connected to both the front and rear sides of the upper portion of the fixed plate (1), and both of the slide rails (16) are slidably connected to the bottom of the shell (2).

4. The opening and closing mechanism of a magnetically controlled circuit breaker according to claim 1, characterized in that: Two protrusions are arranged in the middle of the rotating rod (6), and the two protrusions are located on the left and right sides of the lever (7).

5. The opening and closing mechanism of a magnetically controlled circuit breaker according to claim 1, characterized in that: A bulletproof block is provided at the front end of the spring sheet (10).

6. The opening and closing mechanism of a magnetically controlled circuit breaker according to claim 1, characterized in that: The grid plate (17) is located above the lower end of the second spring (13).

7. The opening and closing mechanism of a magnetically controlled circuit breaker according to claim 1, characterized in that: The diameter of the striker (12) is slightly smaller than the inner diameter of the second spring (13).

8. The opening and closing mechanism of a magnetically controlled circuit breaker according to claim 2, characterized in that: The upper part of the buckle (23) is fixedly connected with a handle (25).

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