Handcart type vacuum circuit breaker

Abstract

The utility model discloses a handcart type vacuum circuit breaker, which comprises a circuit breaker main body, a vacuum pole is arranged on one side of the circuit breaker main body, a chassis is arranged at the bottom of the circuit breaker main body, wheel grooves are arranged on two sides of the chassis, wheels are arranged in the wheel grooves, a mounting groove is arranged in the chassis, a control assembly is arranged in the mounting groove, and the control assembly is arranged in the mounting groove. According to the utility model, when the circuit breaker main body is sent into the power distribution cabinet, support is provided for the circuit breaker main body from two sides, so that lateral deviation of the circuit breaker main body is avoided; when the circuit breaker main body is sent to a designed installation position in the power distribution cabinet, the magnet ring and the metal inner wall of the power distribution cabinet are attracted, so that the circuit breaker main body is fixed, the circuit breaker main body is stably installed in the power distribution cabinet, and the problem that the installation stability of a conventional vehicle type vacuum circuit breaker is not enough is solved.

Description

Technical Field

[0001] The utility model relates to a trolley-type vacuum circuit breaker. Background Art

[0002] A trolley-type vacuum circuit breaker is a vacuum circuit breaker with a chassis structure. When installing it into a power distribution cabinet, only need to align the wheels of the chassis with the matching guide rails in the power distribution cabinet, and then push the circuit breaker, then it can be conveniently installed into the power distribution cabinet; many existing trolley-type vacuum circuit breakers are provided with a locking structure on the wheels of the chassis. After installing the circuit breaker in the power distribution cabinet, use the locking structure to lock the wheels to prevent the wheels from rolling and causing the position of the circuit breaker to shift. However, although the locking structure locks the wheels, the contact surface between the wheels and the inner wall of the power distribution cabinet is very small, and the friction between the wheels and the inner wall of the power distribution cabinet is small, making the circuit breaker prone to translation problems, resulting in insufficient stability of the installation of the trolley-type circuit breaker; therefore, it is necessary to develop a trolley-type vacuum circuit breaker to solve the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide a trolley-type vacuum circuit breaker to solve the problems put forward in the above background art.

[0004] To solve the above problems, the utility model adopts the following technical solutions:

[0005] A trolley-type vacuum circuit breaker, including a circuit breaker body, a vacuum pole column is provided on one side of the circuit breaker body, a chassis is provided at the bottom of the circuit breaker body, wheel grooves are provided on both sides of the chassis, wheels are provided in the wheel grooves, an installation groove is provided inside the chassis, a control component is provided in the installation groove, sliding plates are provided on both sides of the control component, the sliding plates are slidably arranged in the installation groove, locking components are provided on both sliding plates, the locking component includes a functional cylinder, the functional cylinder is fixed on the sliding plate, an electric control telescopic rod is provided in the functional cylinder, a wheel seat is provided at one end of the electric control telescopic rod, an auxiliary wheel is provided on the wheel seat, and a magnet ring is provided at the end of the functional cylinder.

[0006] Preferably, the control component includes a U-shaped seat and a bidirectional threaded rod, the U-shaped seat is fixed in the installation groove, the bidirectional threaded rod is rotatably arranged on the U-shaped seat, two control plates are provided on the bidirectional threaded rod, and a transmission rod is connected between the control plate and the sliding plate on one side.

[0007] Preferably, a first gear is provided on the bidirectional threaded rod, a motor is provided on one side of the U-shaped seat, the motor is fixed in the installation groove, a second gear is provided on the output shaft of the motor, and the second gear meshes with the first gear.

[0008] Preferably, there are two locking components on each sliding plate.

[0009] Preferably, two contact arms are provided on one side of the vacuum terminal post, and plum blossom contacts are provided at the ends of the two contact arms.

[0010] The beneficial effects of the present utility model are as follows: When the circuit breaker body is sent into the power distribution cabinet, the present utility model can provide support for the circuit breaker body from both sides to prevent the circuit breaker body from experiencing lateral displacement; when the circuit breaker body is sent to the designed installation position in the power distribution cabinet, the magnet ring is used to adsorb to the metal inner wall of the power distribution cabinet, thereby fixing the circuit breaker body and enabling the circuit breaker body to be stably installed in the power distribution cabinet, solving the problem of insufficient stability in the installation of conventional vehicle-type vacuum circuit breakers. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art, but this is not a limitation on the protection scope of the present utility model.

[0012] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 For the present utility model Figure 1 It is a schematic diagram of the internal structure of the chassis in the present utility model;

[0014] Figure 3 For the present utility model Figure 2 It is a schematic diagram of the structure of the locking component in the present utility model;

[0015] Figure 4 For the present utility model Figure 2 It is a schematic diagram of the structure of the control component in the present utility model.

[0016] In the figure: 11, circuit breaker body; 12, vacuum terminal post; 13, contact arm; 14, plum blossom contact; 15, chassis; 16, wheel groove; 17, wheel; 18, installation groove; 19, control component; 20, slide plate; 21, transmission rod; 22, locking component; 23, functional cylinder; 24, electric control telescopic rod; 25, wheel seat; 26, auxiliary wheel; 27, magnet ring; 28, U-shaped seat; 29, bidirectional threaded rod; 30, control board; 31, gear one; 32, gear two; 33, motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Refer to Figures 1 to 4A type of trolley-type vacuum circuit breaker shown in the figure includes a circuit breaker main body 11. One side of the circuit breaker main body 11 is provided with a vacuum pole column 12. The bottom of the circuit breaker main body 11 is provided with a chassis 15. Both sides of the chassis 15 are provided with wheel grooves 16. Wheels 17 are arranged in the wheel grooves 16. An installation groove 18 is arranged inside the chassis 15. A control assembly 19 is arranged in the installation groove 18. Slide plates 20 are arranged on both sides of the control assembly 19. The slide plates 20 are slidably arranged in the installation groove 18. Locking assemblies 22 are arranged on both of the two slide plates 20. The locking assembly 22 includes a function cylinder 23. The function cylinder 23 is fixed on the slide plate 20. An electric control telescopic rod 24 is arranged inside the function cylinder 23. One end of the electric control telescopic rod 24 is provided with a wheel seat 25. An auxiliary wheel 26 is arranged on the wheel seat 25. A magnet ring 27 is arranged at the end of the function cylinder 23. When the circuit breaker main body 11 is sent into the power distribution cabinet, control the electric control telescopic rod 24 to extend so that the auxiliary wheel 26 extends out of the function cylinder 23 and abuts against the inner wall of the power distribution cabinet, thereby providing support for the circuit breaker main body 11 from both sides during the movement of the circuit breaker main body 11 and preventing the circuit breaker main body 11 from undergoing lateral displacement. When the circuit breaker main body 11 is sent to the designed installation position in the power distribution cabinet, retract the auxiliary wheel 26 into the function cylinder 23, and use the control assembly 19 to move the whole locking assembly 22 towards the outside of the installation groove 18, so that the magnet ring 27 fits against the inner wall of the power distribution cabinet. The magnet ring 27 can adsorb to the metal inner wall of the power distribution cabinet through magnetic force, thereby fixing the circuit breaker main body 11 and enabling the circuit breaker main body 11 to be stably installed in the power distribution cabinet.

[0018] Furthermore, the control assembly 19 includes a U-shaped seat 28 and a bidirectional threaded rod 29. The U-shaped seat 28 is fixed in the installation groove 18. The bidirectional threaded rod 29 is rotatably arranged on the U-shaped seat 28. Two control plates 30 are arranged on the bidirectional threaded rod 29. A transmission rod 21 is connected between the control plate 30 and the slide plate 20 on one side. Two threaded sections with opposite directions are arranged on the bidirectional threaded rod 29. The two control plates 30 are respectively arranged on the two threaded sections of the bidirectional threaded rod 29.

[0019] Furthermore, a first gear 31 is arranged on the bidirectional threaded rod 29. A motor 33 is arranged on one side of the U-shaped seat 28. The motor 33 is fixed in the installation groove 18. A second gear 32 is arranged on the output shaft of the motor 33. The second gear 32 meshes with the first gear 31. Starting the motor 33 can control the rotation of the bidirectional threaded rod 29, thereby controlling the two control plates 30 to approach or move away from each other along the bidirectional threaded rod 29.

[0020] Furthermore, there are two locking assemblies 22 on each slide plate 20. There are two locking assemblies 22 on each side of the circuit breaker main body 11, which are symmetrically and evenly distributed, ensuring the uniformity of the lateral supporting force for the circuit breaker main body 11 when the circuit breaker main body 11 is sent in, and also ensuring the stability of the fixation of the circuit breaker main body 11 after the circuit breaker main body 11 is installed.

[0021] Further, two contact arms 13 are provided on one side of the vacuum pole column 12, and plum blossom contacts 14 are provided at the ends of the two contact arms 13; after the circuit breaker body 11 is installed in the power distribution cabinet, the plum blossom contacts 14 are connected to the copper busbars in the power distribution cabinet, so that the circuit breaker is connected to the circuit in the power distribution cabinet.

[0022] The working principle of the present utility model is as follows: when installing this vehicle-mounted vacuum circuit breaker in the power distribution cabinet, first align the wheels 17 with the built-in slide rails in the power distribution cabinet, then push the circuit breaker body 11 into the power distribution cabinet, and then start the electric control telescopic rod 24 to extend, so that the wheel seat 25 and the auxiliary wheels 26 extend out of the functional cylinder 23 until the auxiliary wheels 26 abut against the inner wall of the power distribution cabinet. After that, continue to push the circuit breaker body 11 to send the circuit breaker body 11 to the designed installation position in the power distribution cabinet. During the movement of the circuit breaker body 11, the two auxiliary wheels 26 abut against the inner wall of the power distribution cabinet and roll along the inner wall, so as to form supports on both sides of the circuit breaker body 11 and prevent the circuit breaker body 11 from deviating laterally during movement.

[0023] After the circuit breaker body 11 is sent to the installation position, control the electric control telescopic rod 24 to retract, so that the wheel seat 25 and the auxiliary wheels 26 are retracted into the functional cylinder 23, and then start the motor 33 to rotate the second gear 32, thereby rotating the first gear 31, thereby rotating the bidirectional threaded rod 29, so that the two control plates 30 move away from each other along the bidirectional threaded rod 29, thereby pushing the slide plate 20 and the locking assembly 22 thereon to the outside of the installation groove 18 until the magnet ring 27 abuts against the inner wall of the power distribution cabinet. Turn off the motor 33. At this time, the magnet ring 27 is adsorbed to the metal inner wall of the power distribution cabinet by magnetic force, thereby fixing the circuit breaker body 11 and enabling the circuit breaker body 11 to be stably installed in the power distribution cabinet.

[0024] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any change or replacement that can be thought of without creative labor should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims

1. A trolley-type vacuum circuit breaker, comprising a circuit breaker main body, characterized in that: One side of the circuit breaker body is provided with a vacuum pole column, and the bottom of the circuit breaker body is provided with a chassis. Both sides of the chassis are provided with wheel grooves, and wheels are arranged in the wheel grooves. An installation groove is arranged inside the chassis, and a control component is arranged in the installation groove. Sliding plates are arranged on both sides of the control component, and the sliding plates are slidably arranged in the installation groove. Locking components are arranged on both of the sliding plates. The locking component includes a functional cylinder, the functional cylinder is fixed on the sliding plate, an electric control telescopic rod is arranged in the functional cylinder, a wheel seat is arranged at one end of the electric control telescopic rod, an auxiliary wheel is arranged on the wheel seat, and a magnet ring is arranged at the end of the functional cylinder.

2. The handcart-type vacuum circuit breaker according to claim 1, characterized in that: The control component includes a U-shaped seat and a bidirectional threaded rod. The U-shaped seat is fixed in the installation groove, the bidirectional threaded rod is rotatably arranged on the U-shaped seat, two control plates are arranged on the bidirectional threaded rod, and a transmission rod is connected between the control plate and the sliding plate on one side.

3. The handcart-type vacuum circuit breaker according to claim 2, characterized in that: A first gear is arranged on the bidirectional threaded rod, a motor is arranged on one side of the U-shaped seat, the motor is fixed in the installation groove, a second gear is arranged on the output shaft of the motor, and the second gear meshes with the first gear.

4. A handcart-type vacuum circuit breaker according to claim 1, characterized in that: There are two locking components on each sliding plate.

5. A handcart-type vacuum circuit breaker according to claim 1, characterized in that: Two contact arms are arranged on one side of the vacuum pole column, and plum blossom contacts are arranged at the ends of the two contact arms.

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