Vacuum circuit breaker

Abstract

The utility model discloses a vacuum circuit breaker, which comprises an operating mechanism box and a solid-sealed polar pole arranged above the operating mechanism box, the top of the operating mechanism box is provided with a plurality of mounting positions, the bottoms of the mounting positions are provided with threaded holes, a plurality of guide blocks are uniformly distributed and fixedly connected in the mounting positions, and the guide blocks are fixedly connected with the operating mechanism box. The bottom of the solid-sealed polar pole is fixedly connected with a connecting device, the connecting device penetrates through the mounting seat and is in threaded connection with the interior of the threaded hole, and the surface of the guide block is in contact with the connecting device. Through the structural design of the utility model, the solid-sealed polar pole has a guiding effect in the process of assembling the solid-sealed polar pole and the operating mechanism box, and meanwhile, the solid-sealed polar pole is protected, so that the service life of the vacuum circuit breaker is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a vacuum circuit breaker. Background Art

[0002] Vacuum circuit breaker is an important device commonly used in power systems. It can be used to protect and control electrical equipment in industrial and mining enterprises, power plants and substations.

[0003] In the prior art, there is a defect in the production and assembly process of the vacuum circuit breaker. For example, no guiding device is provided during the assembly of the sealed pole with the operating mechanism box. Since the sealed pole adopts a ceramic structure design, it is easy to collide with the operating mechanism box, causing damage to the outer wall of the sealed pole, thereby affecting the service life of the vacuum circuit breaker. Summary of the invention

[0004] The purpose of the utility model is to provide a vacuum circuit breaker to solve the problem that the sealed pole mentioned in the above background technology is not provided with a guide device during the assembly process with the operating mechanism box. Since the sealed pole adopts a ceramic structure design, it is easy to collide with the operating mechanism box, causing damage to the outer wall of the sealed pole, thereby affecting the service life of the vacuum circuit breaker.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vacuum circuit breaker, comprising an operating mechanism box and a sealed pole arranged above the operating mechanism box, the top of the operating mechanism box is provided with a plurality of mounting positions, the bottom of the mounting positions is provided with threaded holes, the interior of the mounting positions is evenly distributed with a plurality of guide blocks fixedly connected, the bottom of the sealed pole is fixedly connected with a connecting device, the connecting device passes through a mounting seat and is threadedly connected to the threaded hole, and the surface of the guide block is in contact with the connecting device.

[0006] Preferably, the connecting device comprises a connecting seat and a connecting column, the connecting column is fixedly connected to the center of the bottom of the connecting seat, and a first connecting hole is opened on the surface of the connecting seat.

[0007] Preferably, an external thread matching the threaded hole is provided below the connecting column, and the upper surface of the connecting column is in contact with the surface of the guide block.

[0008] Preferably, the sealed pole comprises an arc extinguishing chamber body and a movable conductive rod, a movable conductive rod is movable below the arc extinguishing chamber body, and the movable conductive rod passes through a connecting column and is connected to an operating mechanism box.

[0009] Preferably, the guide block is made of rubber material.

[0010] Preferably, the connecting column is designed in a stepped structure.

[0011] Preferably, the top of the operating mechanism box is provided with second connection holes around the installation position.

[0012] Beneficial Effects

[0013] Compared with the existing technology, the beneficial effects of the utility model are:

[0014] Through the structural design of the utility model, the sealed pole has a guiding function during the assembly process with the operating mechanism box, and at the same time the sealed pole is protected, thereby ensuring the service life of the vacuum circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the sealed pole of the utility model cooperating with the operating mechanism box.

[0017] 1. Operating mechanism box; 2. Sealed pole; 3. Connecting device; 11. Mounting position; 12. Threaded hole;

[0018] 13. Guide block; 14. Second connecting hole; 21. Arc extinguishing chamber body; 22. Moving conductive rod;

[0019] 31. Connecting seat; 32. Connecting column; 33. First connecting hole; 34. External thread. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "front", "back", "inside", "outside", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore are not to be construed as limiting the present invention. In addition, the terms "first", "second" and "third" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance.

[0022] like Figure 1-2It is a schematic diagram of the structure of a vacuum circuit breaker in a preferred embodiment of the utility model. In this embodiment, a vacuum circuit breaker includes an operating mechanism box 1 and a sealed pole 2 arranged above the operating mechanism box 1. A plurality of mounting positions 11 are provided on the top of the operating mechanism box 1, and a threaded hole 12 is provided at the bottom of the mounting position 11. At the same time, a plurality of guide blocks 13 are evenly distributed and fixedly connected inside the mounting position 11, so as to improve the guiding effect of the sealed pole 2 when cooperating with the operating mechanism box 1. The operating mechanism box 1 is made of metal materials such as iron, while the sealed pole 2 is made of ceramic materials. The sealed pole 2 and the operating mechanism box 1 are made of a material, so that the anti-collision function between the sealed pole 2 and the operating mechanism box 1 is improved through this structure. A connecting device 3 is fixedly connected to the bottom of the sealed pole 2. The connecting device 3 passes through the installation position 11 and is threadedly connected to the threaded hole 12 to achieve a fixing effect. The surface of the guide block 13 contacts the connecting device 3 to play a guiding role and an anti-collision function. Combined with the above-mentioned structural design, the sealed pole 2 has a guiding role during the assembly process with the operating mechanism box 1, and at the same time, the sealed pole 2 is protected, thereby ensuring the service life of the vacuum circuit breaker.

[0023] In this embodiment, the connecting device 3 includes a connecting seat 31 and a connecting column 32 . The connecting column 32 is fixedly connected to the center of the bottom of the connecting seat 31 , and a first connecting hole 33 is opened on the surface of the connecting seat 31 .

[0024] In this embodiment, an external thread 34 adapted to the threaded hole 12 is provided below the connecting column 32. The threaded connection between the external thread 34 and the threaded hole 12 enables the fixed fit between the sealed pole 2 and the operating mechanism box 1. The upper surface of the connecting column 32 contacts the surface of the guide block 13, which effectively prevents the sealed pole 2 from being bumped.

[0025] In this embodiment, the sealed pole 2 includes an arc extinguishing chamber body 21 and a movable conductive rod 22. The movable conductive rod 22 is movable below the arc chamber body 21. The movable conductive rod 22 passes through the connecting column 32 and is connected to the operating mechanism box 1 to realize the opening and closing function of the vacuum circuit breaker.

[0026] In this embodiment, the guide block 13 is made of rubber material. Since the rubber material has a certain elasticity, the guide block 13 can have the function of preventing collision while having the function of guiding.

[0027] In this embodiment, the connecting column 32 is designed in a stepped structure, which is arranged to better adapt to the position characteristics in the installation position 11, so as to achieve a better matching effect.

[0028] In this embodiment, second connection holes 14 are provided around the mounting position 11 at the top of the operating mechanism box 1 , and bolts threadedly connected to the first connection holes 33 and the second connection holes 14 are used to strengthen the fit and fixation between the sealed pole 2 and the operating mechanism box 1 .

[0029] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A vacuum circuit breaker, comprising an operating mechanism box (1) and a sealed pole (2) arranged above the operating mechanism box (1), characterized in that: The top of the operating mechanism box (1) is provided with a plurality of mounting positions (11), the bottom of the mounting positions (11) is provided with threaded holes (12), the interior of the mounting positions (11) is evenly distributed with a plurality of guide blocks (13) fixedly connected thereto, the bottom of the sealed pole (2) is fixedly connected with a connecting device (3), the connecting device (3) passes through the mounting position (11) and is threadedly connected to the threaded hole (12), and the surface of the guide block (13) is in contact with the connecting device (3).

2. A vacuum circuit breaker according to claim 1, characterized in that: The connecting device (3) comprises a connecting seat (31) and a connecting column (32); the connecting column (32) is fixedly connected to the center of the bottom of the connecting seat (31); and a first connecting hole (33) is provided on the surface of the connecting seat (31).

3. A vacuum circuit breaker according to claim 2, characterized in that: An external thread (34) adapted to the threaded hole (12) is provided below the connecting column (32), and the upper surface of the connecting column (32) is in contact with the surface of the guide block (13).

4. A vacuum circuit breaker according to claim 1, characterized in that: The sealed pole (2) comprises an arc extinguishing chamber body (21) and a movable conductive rod (22); a movable conductive rod (22) is movable below the arc extinguishing chamber body (21); and the movable conductive rod (22) passes through a connecting column (32) and is connected to an operating mechanism box (1).

5. A vacuum circuit breaker according to claim 1, characterized in that: The guide block (13) is made of rubber material.

6. A vacuum circuit breaker according to claim 2, characterized in that: The connecting column (32) is designed in a stepped structure.

7. A vacuum circuit breaker according to claim 1, characterized in that: The top of the operating mechanism box (1) is provided with second connection holes (14) around the installation position (11).

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