Permanent magnet vacuum circuit breaker with manual closing function

Abstract

The utility model relates to the technical field of circuit breakers, in particular to a permanent magnet vacuum circuit breaker with a manual closing function, which comprises a circuit breaker main body, a rotating rod is clamped between through holes of a base of the circuit breaker main body, and a plurality of adjusting columns are hinged between the outer walls of the rotating rod through shifting plates. The plurality of adjusting columns are respectively located below a plurality of column bodies of the circuit breaker main body, one end of each adjusting column is hinged with a linkage sliding block, and the linkage sliding blocks are installed in a lapping rod of the circuit breaker main body in a sliding manner; the whole mounting bottom plate can slide in the track range of the bottom surface of the circuit breaker main body so as to change the relative distance between the mounting assemblies on the two sides of the mounting bottom plate, so that the mounting assemblies and the mounting bases with different punching distances can be stably mounted in a certain range by adjusting the relative positions of the mounting assemblies. And the step of additionally punching when the size of the through hole of the mounting base has an error is omitted, so that the overall mounting efficiency of the device by the external mounting base is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a permanent magnetic vacuum circuit breaker with manual closing function. Background Art

[0002] A manually closed permanent magnetic vacuum circuit breaker is a type of power switching device that uses a permanent magnetic mechanism. It has high reliability and stability, fast operation speed, and long mechanical life. It can extinguish arcs in a high vacuum environment, improving breaking capacity and safety. In specific circumstances, the circuit breaker can be closed manually, such as when the electric operation fails or during maintenance. This type of circuit breaker is widely used in power systems to connect and disconnect circuits and protect electrical equipment from damage caused by faults such as overload and short circuit.

[0003] In the current existing technology, permanent magnetic vacuum circuit breakers with manual closing are usually installed by bolt fixing, and the mounting base of the circuit breaker body and the external mounting structure are mostly fixed. When there is a size mismatch, the circuit breaker or the external mounting base needs to be punched, which reduces the installation efficiency of the circuit breaker.

[0004] Therefore, in order to solve the above problems, a permanent magnetic vacuum circuit breaker with manual closing function is proposed. Utility Model Content

[0005] In order to make up for the shortcomings of the existing technology and solve the problem that the mounting base of the circuit breaker body and the external mounting structure are mostly fixed, and when there is a size mismatch, it is necessary to punch holes in the circuit breaker or the external mounting base, which reduces the installation efficiency of the circuit breaker, a permanent magnetic vacuum circuit breaker with manual closing is proposed.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a permanent magnetic vacuum circuit breaker with manual closing described in the present invention includes a circuit breaker body, a rotating rod is clamped between the base through holes of the circuit breaker body, and multiple adjustment columns are hinged between the outer walls of the rotating rod through a dial plate. The multiple adjustment columns are respectively located under the multiple columns of the circuit breaker body, and one end of the adjustment column is hinged to a linkage slider, which is slidably installed inside the lever of the circuit breaker body. The bottom of the circuit breaker body is symmetrically provided with a mounting assembly, and the mounting assembly includes a mounting base plate, and the top surface of the mounting base plate is fixedly connected to a lifting slider near the two end edges, and the lifting slider is slidably installed in the bottom surface track of the circuit breaker body.

[0007] Preferably, annular limiting frames are symmetrically fixed to both ends of the bottom surface of the lifting slider, and U-shaped buckles are symmetrically fixed to both sides of the annular limiting frame.

[0008] Preferably, bolt sleeves are provided on the outside of adjacent side walls of the two annular limiting frames, and a clamping block is fixed to the outer wall of the bolt sleeve, and the clamping block is engaged with the U-shaped buckle.

[0009] Preferably, a threaded sleeve is fixedly connected to the center of the bottom surface of the mounting base plate, and the axes of the two threaded sleeves coincide.

[0010] Preferably, a linkage component is provided between the two installation components.

[0011] Preferably, the linkage assembly includes a bidirectional screw rod, both ends of the bidirectional screw rod are fixedly connected to a screw rod bracket via bearings, and the bottom surface of the screw rod bracket is fixedly connected to the bottom surface of the circuit breaker body.

[0012] Preferably, the external threads at both ends of the bidirectional screw are threadedly connected to two threaded sleeves respectively.

[0013] Preferably, a rotating sleeve is fixedly connected to the center of the outer wall of the bidirectional screw.

[0014] Beneficial effects of the utility model:

[0015] 1. In the present invention, the mounting base is hoisted by engaging the rails on the bottom surface of the circuit breaker body with the hoisting slider, thereby achieving linkage between the circuit breaker body and the mounting assembly. The mounting base as a whole can slide within the range of the rails on the bottom surface of the circuit breaker body to change the relative distance between the mounting assemblies on both sides of the mounting base. By adjusting the relative position of the mounting assembly within a certain range, the mounting base can be stably installed with mounting bases with different drilling spacings. The step of additional drilling when there is an error in the size of the through-holes in the mounting base is omitted, thereby improving the installation efficiency of the external mounting base for the entire device.

[0016] 2. In the present invention, the bolt sleeve is mounted on the mounting base through the mutual engagement between its outer clamping block and the outer U-shaped clamping buckle of the annular limit frame. The bolt sleeve serves as a structure for connecting the mounting component with the external fixed thread. The external mounting base is fixedly mounted to the entire device through the spiral engagement of its internal thread and the bolt. However, as the use time increases, the structural strength of the internal thread of the bolt sleeve may not be able to ensure the stable installation of the mounting base to the entire device. The bolt sleeve can be replaced as a whole when its thread is unstable by clamping the clamping block and the U-shaped clamping buckle, thereby increasing the rationality of the device structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 This is a three-dimensional diagram of the main body of the circuit breaker in the utility model when viewed from above;

[0020] Figure 3 It is a three-dimensional diagram of the rotating rod in the utility model;

[0021] Figure 4 It is a three-dimensional diagram of the cooperation between the installation component and the linkage component in the utility model;

[0022] Figure 5 It is a partially disassembled three-dimensional diagram of the installation component in the utility model;

[0023] Legend:

[0024] 1. Circuit breaker body; 2. Rotating rod; 21. Adjusting column; 22. Linkage slider; 3. Mounting assembly; 31. Mounting base plate; 32. Lifting slider; 33. Ring limiter; 34. U-shaped buckle; 35. Bolt sleeve; 36. Block; 37. Threaded sleeve; 4. Linkage assembly; 41. Bidirectional screw; 42. Screw bracket; 43. Rotating sleeve. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Specific examples are given below.

[0027] See also Figure 1 - Figure 5The utility model provides a permanent magnetic vacuum circuit breaker with manual closing, comprising a circuit breaker body 1, a rotating rod 2 is clamped between the base through holes of the circuit breaker body 1, a plurality of adjusting columns 21 are hinged between the outer walls of the rotating rod 2 through a dial plate, and the plurality of adjusting columns 21 are respectively located under the plurality of columns of the circuit breaker body 1, and one end of the adjusting column 21 is hinged with a linkage slider 22, which is slidably installed inside the lever of the circuit breaker body 1, and a mounting assembly 3 is symmetrically provided at the bottom of the circuit breaker body 1, and the mounting assembly 3 includes a mounting base 31, and a top surface of the mounting base 31 is fixed with a lifting slider 32 near the edges of both ends, and the lifting slider 32 is slidably installed in the bottom surface track of the circuit breaker body 1, and the circuit breaker body When the electrically controlled closing / closing function fails, the rotating rod 2 is rotated, and the adjusting column 21 hinged between the rotating rod 2 and the outer column of the circuit breaker body 1 changes its relative angle and position accordingly. Furthermore, since the linkage slider 22 at one end of the adjusting column 21 is slidably mounted within the outer rod of the circuit breaker body 1, the circuit breaker body 1 can be opened and closed by turning the adjusting column 21 outward or inward, allowing the device to manually open and close the circuit breaker by rotating the rotating rod 2. The mounting assembly 3 serves as the main structure for mounting the circuit breaker body 1 relative to the external mounting base. The mounting assembly 3 is secured to the circuit breaker body 1 by the mutual engagement between the hoisting slider 32 on the mounting base 31 and the bottom rail of the circuit breaker body 1.

[0028] like Figure 4 and Figure 5 The cam 35 is fixed to the base plate 31 with the outer wall 36 of the cam 35 and the outer wall 36 of the cam 35. The cam 35 is fixed to the base plate 31 with the outer wall 36 of the cam 35. The cam 35 and the U-shaped buckle 34 are respectively fixed to the two sides of the cam 35 and the U-shaped buckle 34.

[0029] like Figure 4As shown, a threaded sleeve 37 is fixed at the center of the bottom surface of the mounting base 31, and the axes of the two threaded sleeves 37 coincide. A linkage assembly 4 is provided between the two mounting assemblies 3, and the linkage assembly 4 includes a bidirectional screw rod 41. Both ends of the bidirectional screw rod 41 are fixed with a screw rod bracket 42 through a bearing. The bottom surface of the screw rod bracket 42 is fixed to the bottom surface of the circuit breaker body 1, and the external threads at both ends of the bidirectional screw rod 41 are respectively threadedly connected with the two threaded sleeves 37. A rotating sleeve 43 is fixed at the center of the outer wall of the bidirectional screw rod 41. The linkage assembly 4 serves as a structure for linking the mounting assemblies 3 on both sides. The external threads of the bidirectional screw rod 41 are respectively screwed with the two threaded sleeves 37, so that the mounting assemblies 3 on both sides can be synchronously reversed in the process of rotating the bidirectional screw rod 41, thereby adapting to the external mounting base within a certain range. The position of the through hole on the seat changes, and the bidirectional screw rod 41 is fixed to the bottom surface of the circuit breaker body 1 with the cooperation of the screw rod brackets 42 at both ends. The relative distance between the two mounting components 3 is adjusted within a certain range by rotating the bidirectional screw rod 41, and the setting of the rotating sleeve 43 can reduce the difficulty of rotating the bidirectional screw rod 41. The force direction of the bolt sleeve 35 connecting the mounting component 3 with the external mounting base is in the longitudinal direction. During the process of adjusting the distance of the mounting component 3, the force directions of the two threaded sleeves 37 are parallel and transverse. During the rotation of the bidirectional screw rod 41, the rotational force is mainly applied to it in the longitudinal plane. The force directions are different. Only during the active rotation of the bidirectional screw rod 41 will the relative position of the mounting component 3 as a whole change. Therefore, there is no need to set an additional rotation limiting structure outside the bidirectional screw rod 41.

[0030] Working principle: Rotate the rotating rod 2, and the adjusting column 21 hinged between the rotating rod 2 and the outer column of the circuit breaker body 1 will change its relative angle and position accordingly, and because the linkage slider 22 at one end of the adjusting column 21 is slidably installed in the outer rod of the circuit breaker body 1, the circuit breaker body 1 can be opened and closed during the process of turning the adjusting column 21 outward or inward, so that the device can realize the process of manual opening and closing by rotating the rotating rod 2, and the mounting assembly 3 is the main structure for relative installation of the circuit breaker body 1 on the external mounting base. The mounting assembly 3 is fixed to the circuit breaker body 1 by the mutual engagement between the hanging slider 32 on the mounting base plate 31 and the bottom track of the circuit breaker body 1. The bolt sleeve 35 is installed on the mounting base plate 31 through the mutual engagement between its outer clamping block 36 and the outer U-shaped buckle 34 of the annular limit frame 33. The bolt sleeve 35 is a structure for fixing the mounting assembly 3 with the outside world through threaded connection. The external mounting base is fixed to the entire device through the spiral tightening of its internal thread and the bolt. The movable component 4 serves as a structure for linking the mounting components 3 on both sides. The external threads of the bidirectional screw rod 41 are screwed to the two threaded sleeves 37 respectively, so that the mounting components 3 on both sides can be synchronously adjusted in opposite directions during the rotation of the bidirectional screw rod 41, and thus adapt to the changes in the position of the through holes on the external mounting base within a certain range. The bidirectional screw rod 41 is fixed to the bottom surface of the circuit breaker body 1 with the cooperation of the screw rod brackets 42 at both ends. The relative distance between the two mounting components 3 is adjusted within a certain range by rotating the bidirectional screw rod 41, and the setting of the rotating sleeve 43 can reduce the difficulty of rotating the bidirectional screw rod 41. The bolt sleeve 35 connecting the mounting component 3 and the external mounting base is subjected to force in the longitudinal direction of the plane. During the process of adjusting the distance of the mounting component 3, the force directions of the two threaded sleeves 37 are parallel and transverse. During the rotation of the bidirectional screw rod 41, the rotational force is mainly applied to it in the longitudinal plane. The force directions are different. The relative position of the mounting component 3 as a whole will change during the active rotation of the bidirectional screw rod 41.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A permanent magnetic vacuum circuit breaker with manual closing function, comprising a circuit breaker body (1), characterized in that: A rotating rod (2) is clamped between the base through holes of the circuit breaker body (1), and a plurality of adjustment columns (21) are hinged between the outer walls of the rotating rod (2) through a shift plate. The plurality of adjustment columns (21) are respectively located below the plurality of columns of the circuit breaker body (1). One end of the adjustment column (21) is hinged with a linkage slider (22), and the linkage slider (22) is slidably installed inside the lever of the circuit breaker body (1). The bottom of the circuit breaker body (1) is symmetrically provided with a mounting assembly (3), and the mounting assembly (3) includes a mounting base (31). The top surface of the mounting base (31) is fixed with a hoisting slider (32) near the edges of both ends, and the hoisting slider (32) is slidably installed in the bottom surface track of the circuit breaker body (1).

2. A permanent magnetic vacuum circuit breaker with manual closing function according to claim 1, characterized in that: An annular limiting frame (33) is symmetrically fixed to both ends of the bottom surface of the lifting slide block (32), and a U-shaped buckle (34) is symmetrically fixed to both sides of the annular limiting frame (33).

3. A permanent magnetic vacuum circuit breaker with manual closing function according to claim 2, characterized in that: Bolt sleeves (35) are provided on the outside of adjacent side walls of the two annular limiting frames (33), and a clamping block (36) is fixed to the outer wall of the bolt sleeve (35), and the clamping block (36) and the U-shaped clamping buckle (34) are mutually engaged.

4. A permanent magnetic vacuum circuit breaker with manual closing function according to claim 3, characterized in that: A threaded sleeve (37) is fixedly connected to the center of the bottom surface of the mounting base plate (31), and the axes of the two threaded sleeves (37) coincide with each other.

5. A permanent magnetic vacuum circuit breaker with manual closing function according to claim 4, characterized in that: A linkage component (4) is provided between the two installation components (3).

6. A permanent magnetic vacuum circuit breaker with manual closing function according to claim 5, characterized in that: The linkage assembly (4) comprises a bidirectional screw rod (41), both ends of the bidirectional screw rod (41) are fixedly connected to screw rod brackets (42) via bearings, and the bottom surface of the screw rod bracket (42) is fixedly connected to the bottom surface of the circuit breaker body (1).

7. A permanent magnetic vacuum circuit breaker with manual closing function according to claim 6, characterized in that: The external threads at both ends of the bidirectional screw rod (41) are respectively threadedly connected to the two threaded sleeves (37).

8. The permanent magnetic vacuum circuit breaker with manual closing function according to claim 7, characterized in that: A rotating sleeve (43) is fixedly connected to the center of the outer wall of the bidirectional screw rod (41).

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