Quick opening and closing mechanism of vacuum circuit breaker

Abstract

The utility model relates to the technical field of vacuum circuit breakers, in particular to a quick opening and closing mechanism of a vacuum circuit breaker, which comprises a vacuum circuit breaker main body and an operation base, an opening button and a closing button are respectively fixed on one side of the vacuum circuit breaker main body, and a gear rotating shaft is rotatably mounted on the upper side of the operation base. According to the utility model, through the rotation or reverse rotation of the gear rotating shaft, the two operation slide bars can be moved and adjusted to control the operation of the opening and closing mechanism, so that the vacuum circuit breaker can be rapidly and flexibly opened and closed, the opening and closing operation can be stably and reliably completed, the safety is good, and the operation is convenient. The use convenience of the quick opening and closing mechanism of the vacuum circuit breaker is ensured, the normal operation of a power system is ensured, and the pressing force of the operation sliding rod can be weakened by using the elastic force of the first spring and the rubber round pad, so that an opening button and a closing button on the vacuum circuit breaker are buffered and protected.

Description

Technical Field

[0001] This utility model relates to the field of vacuum circuit breaker technology, specifically a fast opening and closing mechanism for a vacuum circuit breaker. Background Technology

[0002] Vacuum circuit breakers are important electrical devices used to control and protect circuits in power systems. One of their key functions is opening and closing operation, that is, the ability to quickly disconnect or connect the circuit when needed.

[0003] The prior art discloses patent application number "CN202123404220.5", which discloses a manual opening and closing operation mechanism for a vacuum circuit breaker. It includes an opening and closing shaft and an operation plate linked to the opening and closing shaft. The end of the opening and closing shaft is provided with a opening pressure plate for driving the opening mechanism. The opening and closing shaft is also sleeved with a torsion spring for triggering the closing mechanism. One end of the torsion spring is fixedly connected to the opening pressure plate, and the other end presses against one side of the tripping bent plate of the closing mechanism.

[0004] This manual opening and closing mechanism can only prevent damage to the interlocking mechanism by applying pressure. However, in actual use, since the vacuum circuit breaker in the above device uses mechanical tools for opening and closing, the operation is relatively complicated and cumbersome. This makes it difficult to complete the opening and closing operation stably and reliably, thus affecting the convenience of using the vacuum circuit breaker's fast opening and closing mechanism and making it inconvenient to use. Utility Model Content

[0005] The purpose of this invention is to provide a fast opening and closing mechanism for a vacuum circuit breaker to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A quick opening and closing mechanism for a vacuum circuit breaker includes a vacuum circuit breaker body and an operating base. An opening button and a closing button are fixedly provided on one side of the vacuum circuit breaker body. A gear shaft is rotatably mounted on the upper side of the operating base. A first rack is meshed on both sides of the gear shaft. An L-shaped plate is fixedly provided on the upper side of each of the two first racks. An operating slide rod for opening and closing operations is slidably connected to one side of each of the two L-shaped plates.

[0008] Rubber round pads are fixedly installed on one side of each of the two operating slide rods. A first spring is fixedly connected between each of the two operating slide rods and the L-shaped plate. A driven gear is fixedly connected to one side of the gear shaft. A second rack meshes with one side of the driven gear. A support plate is fixedly installed on one side of the second rack. A side plate is fixedly installed on the lower side of the operating base. An electric push rod is fixedly installed between the side plate and the support plate.

[0009] Preferably, one side of the vacuum circuit breaker body is affixed with an open label and an closed label respectively. Two symmetrically distributed limit seats are fixedly connected to the upper side of the operating base. A T-shaped sliding plate is slidably connected to one side of each of the two limit seats. One side of the T-shaped sliding plate is fastened to the first rack. A limit box is fixedly provided on the lower side of the operating base.

[0010] Preferably, a cross-shaped sliding plate is slidably connected to one side of the limiting box, and one side of the cross-shaped sliding plate is fastened to the second rack.

[0011] Preferably, two symmetrically distributed reinforcing blocks are fixedly installed on one side of the vacuum circuit breaker body, and vertical rods are fixedly provided on the upper side of each of the two reinforcing blocks. The lower side of the operating base is snapped onto the two vertical rods, and a stop block for fixing the operating base is snapped onto one side of each of the two vertical rods. Fastening bolts are threaded to both ends of the operating base, and a connecting plate is fixedly connected to one side of the vacuum circuit breaker body.

[0012] Preferably, a U-shaped insert plate is snapped into one side of the connecting plate, and one side of the U-shaped insert plate passes through the connecting plate and extends to the lower side of the operating base. One side of each of the two reinforcing blocks is slidably connected with a movable locking rod for fixing the U-shaped insert plate. A second spring is fixedly connected between each of the two movable locking rods and the reinforcing blocks. A through circular groove is opened inside the U-shaped insert plate, and one side of the movable locking rod is snapped into the inside of the circular groove.

[0013] Preferably, one side of the gear shaft passes through the operating base and extends to the lower side of the operating base, and the two operating slides are located on one side of the opening button and the closing button, respectively. A protective base is fixedly connected to the lower side of the operating base.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model uses the rotation or reverse rotation of the gear shaft to move and adjust the two operating slide rods to control the operation of the opening and closing mechanism, so that the vacuum circuit breaker can be opened and closed quickly and flexibly, and can also complete the opening and closing operation stably and reliably, with good safety, ensuring the convenience of using the vacuum circuit breaker's fast opening and closing mechanism, and ensuring the normal operation of the power system.

[0016] 2. This utility model utilizes the elasticity of the first spring to reduce the pressing force of the operating slide rod. In addition, the rubber round pad at the operating slide rod can further reduce the pressing force, so as to buffer and protect the opening and closing buttons on the vacuum circuit breaker. At the same time, the snap-fit ​​method can be used to conveniently position the operating base, so as to quickly assemble the opening and closing mechanism on the operating base and improve the assembly efficiency of the vacuum circuit breaker's fast opening and closing mechanism. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a utility model Figure 1 A schematic diagram of the structure of the central operating slide bar, the first spring, and the rubber round pad;

[0020] Figure 3 This is a utility model Figure 1 A schematic diagram of the installation of the driven gear and the second rack;

[0021] Figure 4 This is a utility model Figure 1 Installation diagram of the connecting plate and U-shaped insert plate;

[0022] Figure 5 This is a utility model Figure 4 Installation diagram of the central vertical rod and operating base;

[0023] The attached figures are labeled as follows:

[0024] 1. Vacuum circuit breaker body; 2. Operating base; 3. Opening button; 4. Closing button; 5. Opening label; 6. Closing label; 7. Gear shaft; 8. Limit seat; 9. T-shaped sliding plate; 10. First rack; 11. L-shaped plate; 12. Operating slide rod; 13. First spring; 14. Rubber round pad; 15. Driven gear; 16. Second rack; 17. Limit box; 18. Cross sliding plate; 19. Support plate; 20. Electric push rod; 21. Side plate; 22. Protective bottom shell; 23. Reinforcing block; 24. Vertical rod; 25. Stop block; 26. Connecting plate; 27. U-shaped insert plate; 28. Second spring; 29. ​​Circular groove; 30. Movable locking rod; 66. Fastening bolt. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 5As shown, a quick opening and closing mechanism for a vacuum circuit breaker includes a vacuum circuit breaker body 1 and an operating base 2. An opening button 3 and a closing button 4 are fixedly provided on one side of the vacuum circuit breaker body 1. A gear shaft 7 is rotatably mounted on the upper side of the operating base 2. A first rack 10 is meshed on both sides of the gear shaft 7. An L-shaped plate 11 is fixedly provided on the upper side of each of the two first racks 10. An operating slide rod 12 for opening and closing operations is slidably connected to one side of each of the two L-shaped plates 11.

[0027] Rubber round pads 14 are fixedly installed on one side of each of the two operating slide rods 12. A first spring 13 is fixedly connected between each of the two operating slide rods 12 and the L-shaped plate 11. The opposite or relative movement of the two operating slide rods 12 can enable the vacuum circuit breaker to achieve opening and closing operations more quickly and reliably. A driven gear 15 is fixedly connected to one side of the gear shaft 7. A second rack 16 meshes with one side of the driven gear 15. A support plate 19 is fixedly provided on one side of the second rack 16. A side plate 21 is fixedly installed on the lower side of the operating base 2. An electric push rod 20 is fixedly installed between the side plate 21 and the support plate 19.

[0028] A trip label 5 and a closing label 6 are affixed to one side of the vacuum circuit breaker body 1. The trip label 5 and the closing label 6 are used to mark the trip button 3 and the closing button 4, making it easy to distinguish between them. The upper side of the operating base 2 is fixedly connected to two symmetrically distributed limit seats 8. A T-shaped slide plate 9 is slidably connected to one side of each limit seat 8. The T-shaped slide plate 9 can move inside the limit seat 8 to limit and guide the movement trajectory of the two first racks 10, allowing the two operating slide rods 12 to perform tripping and closing operations smoothly. One side of the T-shaped slide plate 9 is fastened to the first rack 10. A limit box 17 is fixedly installed on the lower side of the operating base 2.

[0029] A cross slide plate 18 is slidably connected to one side of the limiting box 17. One side of the cross slide plate 18 is fastened to the second rack 16. The cross slide plate 18 can move inside the limiting box 17 so that the second rack 16 can drive the driven gear 15 to rotate smoothly and reliably, so that the driven gear 15 can rotate and adjust smoothly.

[0030] Two symmetrically distributed reinforcing blocks 23 are fixedly installed on one side of the vacuum circuit breaker body 1. Vertical rods 24 are fixedly installed on the upper side of each of the two reinforcing blocks 23. The lower side of the operating base 2 is snapped onto the two vertical rods 24. A stop block 25 for fixing the operating base 2 is snapped onto one side of each of the two vertical rods 24. Fastening bolts 66 are threaded to both ends of the operating base 2. A connecting plate 26 is fixedly connected to one side of the vacuum circuit breaker body 1.

[0031] A U-shaped insert plate 27 is snapped onto one side of the connecting plate 26. One side of the U-shaped insert plate 27 passes through the connecting plate 26 and extends to the lower side of the operating base 2. Movable locking rods 30 for fixing the U-shaped insert plate 27 are slidably connected to one side of each of the two reinforcing blocks 23. A second spring 28 is fixedly connected between each of the two movable locking rods 30 and the reinforcing block 23. A through circular groove 29 is opened inside the U-shaped insert plate 27. One side of the movable locking rod 30 is snapped into the inside of the circular groove 29. The movable locking rod 30 can be used to limit and fix the U-shaped insert plate 27, ensuring the stability of the operating base 2 during assembly.

[0032] One side of the gear shaft 7 passes through the operating base 2 and extends to the lower side of the operating base 2. The two operating slides 12 are located on one side of the opening button 3 and the closing button 4, respectively. The lower side of the operating base 2 is fixedly connected to the protective bottom shell 22.

[0033] The working principle of the fast opening and closing mechanism of the vacuum circuit breaker provided by this utility model is as follows:

[0034] By activating the electric push rod 20, the electric push rod 20 retracts itself, causing the cross slide plate 18 at the second rack 16 to move within the limit box 17. In this way, the second rack 16 can drive the driven gear 15 to rotate. At this time, the driven gear 15 can also drive the gear shaft 7 to rotate. Subsequently, the gear shaft 7 can drive the T-shaped slide plates 9 at the two first racks 10 to move towards each other within the limit seat 8. Then, the operating slide rod 12 with the first spring 13 installed on one of the first racks 10 can move to press the trip button 3. When the electric push rod 20 extends automatically, it causes the gear shaft 7 at the driven gear 15 to rotate in the opposite direction. In this way, the operating slide rod 12 with the first spring 13 installed on the other first rack 10 can move to press the close button 4. The movement adjustment of the two operating slide rods 12 can control the operation of the tripping and closing mechanism, so that the vacuum circuit breaker can be tripped and closed quickly and flexibly. It can also complete the tripping and closing operation stably and reliably, with good safety, ensuring the convenience of using the vacuum circuit breaker's fast tripping and closing mechanism, and ensuring the normal operation of the power system.

[0035] By utilizing the elasticity of the first spring 13, the pressing force of the operating slide rod 12 can be reduced. Combined with the rubber round pad 14 at the operating slide rod 12, the pressing force can be further reduced to buffer and protect the opening button 3 and closing button 4 on the vacuum circuit breaker. Next, the operating base 2 is snapped onto the two vertical rods 24 on the two reinforcing blocks 23, and then the two stops 25 are snapped into the two vertical rods 24. The two fastening bolts 66 are then tightened to position the operating base 2. Then, the two movable locking rods 30, which are equipped with the second spring 28, are pressed down. The U-shaped insert plate 27 is then inserted under the operating base 2. Subsequently, the two elastic movable locking rods 30 are released, allowing them to move into the round groove 29 of the U-shaped insert plate 27. This snap-fit ​​method allows for convenient positioning of the operating base 2, facilitating the rapid assembly of the opening and closing mechanism on the operating base 2 and improving the assembly efficiency of the vacuum circuit breaker's rapid opening and closing mechanism.

[0036] 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 illustrative of the 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.

Claims

1. A fast opening and closing mechanism for a vacuum circuit breaker, comprising a vacuum circuit breaker body (1) and an operating base (2), characterized in that: The vacuum circuit breaker body (1) is fixedly provided with a trip button (3) and a close button (4) on one side. A gear shaft (7) is rotatably installed on the upper side of the operating base (2). A first rack (10) is meshed on both sides of the gear shaft (7). An L-shaped plate (11) is fixedly provided on the upper side of the two first racks (10). An operating slide rod (12) for tripping and closing is slidably connected on one side of the two L-shaped plates (11). A rubber round pad (14) is fixedly installed on one side of each of the two operating slide rods (12). A first spring (13) is fixedly connected between each of the two operating slide rods (12) and the L-shaped plate (11). A driven gear (15) is fixedly connected to one side of the gear shaft (7). A second rack (16) meshes with one side of the driven gear (15). A support plate (19) is fixedly provided on one side of the second rack (16). A side plate (21) is fixedly installed on the lower side of the operating base (2). An electric push rod (20) is fixedly installed between the side plate (21) and the support plate (19).

2. The fast opening and closing mechanism for a vacuum circuit breaker according to claim 1, characterized in that, One side of the vacuum circuit breaker body (1) is respectively affixed with a trip label (5) and a closing label (6). The upper side of the operating base (2) is fixedly connected with two symmetrically distributed limit seats (8). One side of each of the two limit seats (8) is slidably connected with a T-shaped sliding plate (9). One side of the T-shaped sliding plate (9) is fastened to the first rack (10). The lower side of the operating base (2) is fixedly provided with a limit box (17).

3. The fast opening and closing mechanism for a vacuum circuit breaker according to claim 2, characterized in that, The limiting box (17) is slidably connected to a cross slide plate (18) on one side, and one side of the cross slide plate (18) is fastened to the second rack (16).

4. The fast opening and closing mechanism for a vacuum circuit breaker according to claim 1, characterized in that, Two symmetrically distributed reinforcing blocks (23) are fixedly installed on one side of the vacuum circuit breaker body (1). Vertical rods (24) are fixedly provided on the upper side of the two reinforcing blocks (23). The lower side of the operating base (2) is snapped onto the two vertical rods (24). A stop block (25) for fixing the operating base (2) is snapped onto one side of the two vertical rods (24). Fastening bolts (66) are threaded to both ends of the operating base (2). A connecting plate (26) is fixedly connected to one side of the vacuum circuit breaker body (1).

5. A fast opening and closing mechanism for a vacuum circuit breaker according to claim 4, characterized in that, A U-shaped insert plate (27) is snapped into one side of the connecting plate (26). One side of the U-shaped insert plate (27) passes through the connecting plate (26) and extends to the lower side of the operating base (2). One side of each of the two reinforcing blocks (23) is slidably connected with a movable locking rod (30) for fixing the U-shaped insert plate (27). A second spring (28) is fixedly connected between the two movable locking rods (30) and the reinforcing blocks (23). A through circular groove (29) is opened inside the U-shaped insert plate (27). One side of the movable locking rod (30) is snapped into the inside of the circular groove (29).

6. The fast opening and closing mechanism for a vacuum circuit breaker according to claim 1, characterized in that, One side of the gear shaft (7) passes through the operating base (2) and extends to the lower side of the operating base (2). The two operating slides (12) are located on the side of the trip button (3) and the closing button (4), respectively. The lower side of the operating base (2) is fixedly connected to a protective bottom shell (22).

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