A high-voltage circuit breaker operating mechanism

Abstract

The utility model provides a kind of high-voltage circuit breaker operating mechanism, including left side plate, right side plate and connecting plate, the connecting plate is equipped with two, symmetrically arranged, respectively set between the upper and lower ends of left side plate and right side plate, fixed connection by bolt and left side plate and right side plate, right side plate is equipped with static contact and moving contact, transmission is equipped between left side plate and right side plate, moving contact is connected with transmission, transmission is used to control moving contact, linkage moving contact and static contact close and disconnect, the side wall of right side plate is equipped with protective shell, the protective shell is equipped with handle, handle is used to control transmission, by setting transmission, energy storage spring is symmetrically set on transmission, by the effect of gear engagement transmission and energy storage spring, the action speed and strength of moving contact are improved, the quick switching of circuit breaker is ensured, and the safety and reliability of power system are improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to an operating mechanism for a high-voltage circuit breaker. Background Technology

[0002] High-voltage circuit breakers are important control and protection devices in power systems. Their operating mechanisms are used to control the opening and closing actions of the circuit breakers, which directly affect the performance and reliability of the circuit breakers.

[0003] The existing high-voltage circuit breaker operating mechanism has a complex structure, is not convenient to operate, and has certain safety hazards during operation. For example, the operating parts lack effective insulation and anti-slip measures, which can easily cause electric shock accidents or operational errors. In addition, the transmission device of some operating mechanisms is not reasonably designed, resulting in low transmission efficiency and poor stability, which affects the normal operation of the circuit breaker.

[0004] To address these issues, a high-voltage circuit breaker operating mechanism is proposed here. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems of low transmission efficiency and poor stability caused by unreasonable design of the transmission device of the operating mechanism, this utility model provides a high-voltage circuit breaker operating mechanism.

[0006] This utility model is achieved using the following technical solution:

[0007] A high-voltage circuit breaker operating mechanism includes a left side plate, a right side plate, and a connecting plate. Two connecting plates are provided, symmetrically arranged, and respectively positioned between the upper and lower ends of the left and right side plates. They are fixedly connected to the left and right side plates by bolts. A stationary contact and a moving contact are provided on the right side plate. A transmission device is provided between the left and right side plates. The moving contact is connected to the transmission device, which controls the moving contact and links the closing and opening of the moving contact and the stationary contact. A protective shell is provided on the side wall of the right side plate, and a rotating handle is provided on the protective shell. The rotating handle is used to operate the transmission device.

[0008] The transmission device includes a first rotating shaft, a second rotating shaft, a third rotating shaft, an energy storage spring, and a rotating arm. The first rotating shaft, the second rotating shaft, and the third rotating shaft are respectively provided with a first gear, a second gear, and a third gear at their centers. The first gear, the second gear, and the third gear are meshed and connected sequentially from top to bottom. The rotating arm is located below the third gear and is rotatably fixed between the left side plate and the right side plate.

[0009] The second rotating shaft is provided with symmetrical crank arms on both sides, and each crank arm is provided with a hanging plate. The hanging plate is rotatably connected to the crank arm. The crank arm is located outside the left and right side plates. There are two energy storage springs. One end of each energy storage spring is connected to the hanging plate, and the other end is connected to the end of the rotating arm.

[0010] The first rotating shaft has a connecting shaft on the side near the right side plate, the connecting shaft passes through the right side plate, and the rotating handle is fixed to the side wall of the connecting shaft.

[0011] An insulating sleeve is fitted onto the handle, and the insulating sleeve has multiple anti-slip grooves.

[0012] An indicator post is provided on the outer peripheral wall of the insulating sleeve, and the indicator post is integrated with the insulating sleeve.

[0013] The protective shell is provided with two symmetrical limiting posts.

[0014] The present invention has the following advantages over the prior art:

[0015] 1. By setting up a transmission device, energy storage springs are symmetrically arranged on the transmission device. Through gear meshing transmission and the action of energy storage springs, the operating speed and force of the moving contact are improved, ensuring the rapid opening and closing of the circuit breaker and improving the safety and reliability of the power system.

[0016] 2. The rotating handle is equipped with an insulating sleeve and anti-slip groove, which increases the safety and convenience of operation; the setting of the indicator post and limit post makes it easy for the operator to accurately judge the position of the rotating handle and avoid operational errors. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is an exploded three-dimensional structural diagram of this utility model;

[0019] Figure 3 This is a schematic diagram of the transmission mechanism structure of this utility model;

[0020] Figure 4 This is a front view of the utility model;

[0021] Figure 5 This is a side view of the present invention;

[0022] In the diagram: 1. Left side plate; 2. Protective shell; 21. Insulating sleeve; 22. Indicator post; 23. Anti-slip groove; 24. Limiting post; 3. Right side plate; 4. Connecting plate; 5. Energy storage spring; 51. Hanging plate; 6. First rotating shaft; 61. Connecting shaft; 62. Rotating handle; 7. Second rotating shaft; 71. Crank arm; 8. Third rotating shaft; 9. Rotating arm; 10. Moving contact; 11. Stationary contact. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figures 1 to 5 As shown, a high-voltage circuit breaker operating mechanism includes a left side plate 1, a right side plate 3, and a connecting plate 4. The left side plate 1 and the right side plate 3 serve as the main support for the entire high-voltage circuit breaker operating mechanism, providing installation foundations and fixed positions for other components, ensuring the overall stability and reliability of the mechanism. Two connecting plates 4 are provided, symmetrically arranged, respectively located between the upper and lower ends of the left side plate 1 and the right side plate 3, and are fixedly connected to the left side plate 1 and the right side plate 3 by bolts to form a stable frame structure. The right side plate 3 is provided with a stationary contact 11 and a moving contact 10. A transmission device is provided between the left side plate 1 and the right side plate 3. The moving contact 10 is connected to the transmission device. The transmission device is used to control the moving contact 10, linking the moving contact 10 with the stationary contact 11 to close and open, thereby controlling the circuit's on / off state. A protective shell 2 is provided on the side wall of the right side plate 3, and a handle 62 is provided on the protective shell 2. The handle 62 is used to operate the transmission device.

[0026] The transmission device includes a first rotating shaft 6, a second rotating shaft 7, a third rotating shaft 8, an energy storage spring 5, and a rotating arm 9. The first rotating shaft 6, the second rotating shaft 7, and the third rotating shaft 8 are respectively provided with a first gear, a second gear, and a third gear. The first gear, the second gear, and the third gear are meshed and connected sequentially from top to bottom. The transmission and conversion of power are realized through the meshing transmission of the gears. The rotating arm 9 is located below the third gear and is rotatably fixed between the left side plate 1 and the right side plate 3.

[0027] The second rotating shaft 7 is symmetrically provided with crank arms 71 on both sides, and each crank arm 71 is provided with a hanging plate 51. The hanging plate 51 is rotatably connected to the crank arm 71. The crank arm 71 is located outside the left side plate 1 and the right side plate 3. There are two energy storage springs 5. One end of each energy storage spring 5 is connected to the hanging plate 51, and the other end is connected to the end of the rotating arm 9. The energy storage springs 5 ​​play the role of storing and releasing energy during the transmission process, which helps to improve the action speed and force of the moving contact 10.

[0028] The first rotating shaft 6 is provided with a connecting shaft 61 on the side near the right side plate 3. The connecting shaft 61 passes through the right side plate 3. The rotating handle 62 is fixed on the side wall of the connecting shaft 61. By operating the rotating handle 62, the first rotating shaft 6 can be driven to rotate, thereby driving the entire transmission device to work.

[0029] An insulating sleeve 21 is fitted onto the handle 62. The insulating sleeve 21 has multiple anti-slip grooves 23. The insulating sleeve 21 can effectively prevent the operator from being electrocuted, while the anti-slip grooves 23 increase the friction between the operator's hand and the handle 62, making it easier to operate.

[0030] An indicator post 22 is provided on the outer peripheral wall of the insulating sleeve 21. The indicator post 22 is integrated with the insulating sleeve 21. The indicator post 22 can be used to indicate the rotation position of the handle 62, making it convenient for the operator to judge the state of the moving contact 10.

[0031] The protective shell 2 is provided with two symmetrical limiting posts 24. The limiting posts 24 can limit the rotation range of the handle 62 to prevent excessive rotation from damaging the transmission device.

[0032] The working principle of this utility model is as follows: When it is necessary to close the circuit breaker, the operator rotates the handle 62. The handle 62 drives the connecting shaft 61 and the first shaft 6 to rotate. The first gear on the first shaft 6 drives the second gear and the second shaft 7 to rotate through meshing transmission. The crank arm 71 on the second shaft 7 rotates accordingly, driving the hanging plate 51 to move. The movement of the hanging plate 51 stretches the energy storage spring 5 to store energy. At the same time, through the action of the rotating arm 9, the power is transmitted to the moving contact 10, causing the moving contact 10 to move towards the stationary contact 11, thereby achieving closure.

[0033] When it is necessary to disconnect the circuit breaker, the handle 62 is rotated in the opposite direction, the energy storage spring 5 releases energy, and through the action of the transmission device, the moving contact 10 is moved away from the stationary contact 11, thus achieving disconnection;

[0034] During operation, the limiting post 24 on the protective shell 2 can limit the rotation range of the handle 62 to prevent excessive rotation, and the indicator post 22 can indicate the rotation position of the handle 62, making it convenient for the operator to judge the status of the moving contact 10.

[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A high-voltage circuit breaker operating mechanism, comprising a left side plate (1), a right side plate (3), and a connecting plate (4), wherein two connecting plates (4) are provided, symmetrically arranged, respectively disposed between the upper and lower ends of the left side plate (1) and the right side plate (3), and fixedly connected to the left side plate (1) and the right side plate (3) by bolts, characterized in that, The right side plate (3) is provided with a stationary contact (11) and a moving contact (10). A transmission device is provided between the left side plate (1) and the right side plate (3). The moving contact (10) is connected to the transmission device. The transmission device is used to control the moving contact (10) and to link the moving contact (10) and the stationary contact (11) to close and open. A protective shell (2) is provided on the side wall of the right side plate (3). A handle (62) is provided on the protective shell (2). The handle (62) is used to operate the transmission device.

2. The high-voltage circuit breaker operating mechanism according to claim 1, characterized in that: The transmission device includes a first rotating shaft (6), a second rotating shaft (7), a third rotating shaft (8), an energy storage spring (5), and a rotating arm (9). The first rotating shaft (6), the second rotating shaft (7), and the third rotating shaft (8) are respectively provided with a first gear, a second gear, and a third gear. The first gear, the second gear, and the third gear are meshed and connected sequentially from top to bottom. The rotating arm (9) is located below the third gear and can be rotatably fixed between the left side plate (1) and the right side plate (3). The second rotating shaft (7) is symmetrically provided with crank arms (71) on both sides. Each crank arm (71) is provided with a hanging plate (51). The hanging plate (51) is rotatably connected to the crank arm (71). The crank arm (71) is located outside the left side plate (1) and the right side plate (3). There are two energy storage springs (5). One end of each energy storage spring (5) is connected to the hanging plate (51), and the other end is connected to the end of the rotating arm (9). The first rotating shaft (6) has a connecting shaft (61) on one side near the right side plate (3). The connecting shaft (61) passes through the right side plate (3), and the rotating handle (62) is fixed on the side wall of the connecting shaft (61).

3. The high-voltage circuit breaker operating mechanism according to claim 1, characterized in that: An insulating sleeve (21) is fitted onto the handle (62), and multiple anti-slip grooves (23) are provided on the insulating sleeve (21).

4. The high-voltage circuit breaker operating mechanism according to claim 3, characterized in that: An indicator post (22) is provided on the outer peripheral wall of the insulating sleeve (21), and the indicator post (22) is integrated with the insulating sleeve (21).

5. The high-voltage circuit breaker operating mechanism according to claim 3, characterized in that: The protective shell is provided with two symmetrical limiting posts (24).

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