Outdoor vacuum circuit breaker

Abstract

The utility model relates to an outdoor vacuum circuit breaker, which comprises a circuit breaker main body and two mounting seats, the two mounting seats are welded and fixed on two opposite sides of the bottom of the circuit breaker main body, the two mounting seats are used for supporting the circuit breaker main body, and the bottoms of the two mounting seats are connected with an external mounting bracket through bolts. And the connecting shade assembly is arranged between the circuit breaker main body and the two mounting seats, the connecting shade assembly comprises a connecting structure and a shade frame, the shade frame is hung below the circuit breaker main body by utilizing the connecting structure, and the shade frame movably presses and covers the inner sides of the two mounting seats by utilizing the connecting structure. According to the outdoor vacuum circuit breaker, through the cooperative arrangement of the connecting shade assembly and the mounting seat, when the outdoor vacuum circuit breaker is mounted and used on an external mounting bracket, the connecting part can be shaded by using the shade frame, so that the corrosion influence of external rainwater and the like on bolts at the connecting part can be reduced, and the mounting stability of the outdoor vacuum circuit breaker is improved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum circuit breaker technology, specifically to an outdoor vacuum circuit breaker. Background Technology

[0002] Vacuum circuit breakers are named for their high vacuum conditions, which are the arc-extinguishing medium and the insulating medium between the contacts after arc extinguishing. They have the advantages of small size, light weight, suitability for frequent operation, and no need for maintenance during arc extinguishing, and are widely used in power distribution networks.

[0003] In related technologies, Chinese patent with announcement number CN206098269U discloses an outdoor vacuum circuit breaker, which includes a housing, three poles disposed at the upper end of the housing, a current transformer disposed on each pole, a lower terminal block connected to the current transformer, an interlocking shaft disposed on the outside of the housing, a switching operation handle disposed on one side of the housing, and an energy storage operation handle disposed on one side of the housing.

[0004] The conventional installation method for the aforementioned outdoor vacuum circuit breaker is as follows: First, the bracket is fixed to the utility pole, then the enclosure is placed on the bracket, and finally, the enclosure and bracket are connected by mounting bolts to achieve the positioning of the enclosure. However, since the mounting bolts are exposed to the elements, they are prone to rusting and aging after long-term exposure to sun and rain, which affects the stability of the circuit breaker and needs to be improved. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This invention provides an outdoor vacuum circuit breaker that solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an outdoor vacuum circuit breaker, comprising a circuit breaker body and two mounting seats, the two mounting seats being welded and fixed to opposite sides of the bottom of the circuit breaker body, the two mounting seats supporting the circuit breaker body, and the bottom of the two mounting seats being connected to an external mounting bracket by bolts, characterized in that a connecting cover assembly is disposed between the circuit breaker body and the two mounting seats, the connecting cover assembly comprising a connecting structure and a cover frame, the cover frame being suspended below the circuit breaker body by the connecting structure, and the cover frame being movably pressed against the inner side of the two mounting seats by the connecting structure, the bottom opposite sides of the cover frame having cover grooves, and the cover frame using the cover grooves to cover the bolts connecting the two mounting seats to the external mounting bracket.

[0009] Preferably, the connection structure includes a guide rod fixedly mounted on the bottom of the circuit breaker body. A slider is slidably connected to the outer side of the guide rod. Connecting arms are rotatably connected to the four corners of the slider. The end of each connecting arm away from the slider is rotatably connected to the middle of a folding arm. The bottom ends of the four folding arms are rotatably connected to a shielding frame. The top end of each folding arm is rotatably connected to a lifting seat. The four lifting seats are fixedly connected to the bottom of the circuit breaker body.

[0010] In a further preferred embodiment, the folding arm includes an upper arm and a lower arm, with adjacent ends of the upper arm and lower arm rotatably connected to adjacent connecting arms via pins, the top end of the upper arm rotatably connected to the lifting seat, and the bottom end of the lower arm rotatably connected to the shielding frame.

[0011] In a further preferred embodiment, the slider is a solid carbon steel block, and the lower end of the guide rod is provided with a limiting baffle with a diameter larger than that of the guide rod, and the slider is movably positioned above the limiting baffle.

[0012] In a further preferred embodiment, the mounting base includes a load-bearing portion, a support portion, and a fixing portion. The load-bearing portion and the support portion are respectively formed at the top and bottom of the support portion. The load-bearing portion is welded and fixed to the circuit breaker body. The fixing portion has a plurality of fixing holes, and bolts for connecting the fixing portion to an external mounting bracket are inserted into the fixing holes. The fixing portion also has a guide groove that penetrates the fixing portion. Both ends of the shield frame have inclined surfaces that slope towards the guide groove. The mounting base also includes a reinforcing portion, which is formed between the load-bearing portion and the support portion, and there is a certain distance between the reinforcing portion and the fixing portion.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides an outdoor vacuum circuit breaker, which has the following beneficial effects:

[0015] In this invention, by cooperating with the connecting shield assembly and the mounting base, the outdoor vacuum circuit breaker can be installed and used on an external mounting bracket. The shield frame can cover the connection parts, thereby reducing the impact of external rainwater on the bolts at the connection parts and improving the stability of the outdoor vacuum circuit breaker installation. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an outdoor vacuum circuit breaker according to the implementation plan;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of an outdoor vacuum circuit breaker from another angle;

[0018] Figure 3 This is a structural schematic diagram of the mounting base according to the implementation plan;

[0019] Figure 4 This is a structural schematic diagram of the connection shield assembly according to the implementation plan;

[0020] Figure 5 as root Figure 4 A schematic diagram of the structure of the connecting mask component from another angle.

[0021] In the diagram: 10. Circuit breaker body; 20. Mounting base; 21. Bearing part; 22. Support part; 23. Fixing part; 231. Fixing hole; 232. Guide groove; 24. Reinforcing part; 30. Connecting shield assembly; 31. Guide rod; 32. Slider; 33. Connecting arm; 34. Folding arm; 341. Upper arm; 342. Lower arm; 35. Lifting base; 36. Shield frame; 361. Shield groove. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 and Figure 2 An outdoor vacuum circuit breaker includes a circuit breaker body 10, two mounting bases 20, and a connecting shield assembly 30. The two mounting bases 20 are welded and fixed to opposite sides of the bottom of the circuit breaker body 10, allowing them to support the circuit breaker body 10. The bottoms of the two mounting bases 20 can be bolted to an external mounting bracket, enabling the outdoor vacuum circuit breaker to be installed and used at the desired location. The connecting shield assembly 30 is disposed between the circuit breaker body 10 and the two mounting bases 20, and serves to protect the connecting bolts between the mounting bases 20 and the external mounting bracket, reducing their susceptibility to rainwater corrosion.

[0024] See Figure 3The mounting base 20 may include a bearing portion 21, a support portion 22, a fixing portion 23, and a reinforcing portion 24. The bearing portion 21 and the support portion 22 are respectively formed at the top and bottom of the support portion 22. The bearing portion 21 is welded and fixed to the circuit breaker body 10. The fixing portion 23 has several fixing holes 231, into which bolts connecting the fixing portion 23 to an external mounting bracket can be inserted. A guide groove 232 penetrating the fixing portion 23 is also formed on the fixing portion 23. Both ends of the shield frame 36 in the connecting shield assembly 30 have inclined surfaces that slope towards the guide groove 232, allowing rainwater falling above it to be guided to the guide groove 232 and discharged downwards while the shield bolts are being installed. This reduces the accumulation of rainwater between the two mounting bases 20 and the connecting shield assembly 30. A reinforcing portion 24 is formed between the bearing portion 21 and the support portion 22, and the reinforcing portion 24 is used to improve the mechanical strength of the bearing portion 21 so that it can stably support the circuit breaker body 10. In addition, there is a certain distance between the reinforcing portion 24 and the fixing portion 23 so that the connecting shield assembly 30 has a certain amount of room to move.

[0025] See Figure 4 and Figure 5 The connecting shield assembly 30 includes a connecting structure and a shield frame 36. The shield frame 36 is suspended below the circuit breaker body 10 using the connecting structure, and the shield frame 36 is movably pressed against the inner side of the two mounting seats 20 using the connecting structure. Shielding grooves 361 are provided on opposite sides of the bottom of the shield frame 36, and the shield frame 36 can use the shielding grooves 361 to cover the bolts used for connecting the two mounting seats 20 to the external mounting bracket. In this embodiment, the connecting structure includes a guide rod 31 fixed to the bottom of the circuit breaker body 10. A slider 32 is slidably connected to the outer side of the guide rod 31. The slider 32 is a solid carbon steel block. A limiting baffle with a diameter larger than the diameter of the guide rod 31 is provided at the lower end of the guide rod 31, allowing the slider 32 to be pushed upward above the limiting baffle, and to fall to contact the limiting baffle under gravity when not pushed. Each of the four corners of the slider 32 is rotatably connected to a connecting arm 33. The end of each connecting arm 33 furthest from the slider 32 is rotatably connected to the middle of a folding arm 34, so that when the slider 32 moves axially along the guide rod 31, the connecting arm 33 can drive the folding arm 34 to adjust its folding angle. The bottom ends of the four folding arms 34 are rotatably connected to the shielding frame 36, and the top end of each folding arm 34 is rotatably connected to a lifting seat 35. The four lifting seats 35 are fixedly connected to the bottom of the circuit breaker body 10. When adjusting the folding angle, the four folding arms 34 can drive the shielding frame 36 to move and adjust its position.

[0026] In this embodiment, the folding arm 34 includes an upper arm 341 and a lower arm 342. The adjacent ends of the upper arm 341 and the lower arm 342 are rotatably connected to the adjacent connecting arm 33 by a pin. The top end of the upper arm 341 is rotatably connected to the lifting base 35, and the bottom end of the lower arm 342 is rotatably connected to the shielding frame 36.

[0027] During installation or disassembly, the user can push and support the cover frame 36 to separate it from the two mounting seats 20. At this time, the bolts connecting the mounting seats 20 and the external mounting bracket can be tightened or loosened. After installation, the cover frame 36 is loosened, allowing it to slide down under the push of the four folding arms 34 and press against the bottom of the two mounting seats 20, thus protecting the bolts. Furthermore, through the cooperative arrangement of the cover assembly 30 and the mounting seats 20, when the outdoor vacuum circuit breaker is installed and used on the external mounting bracket, the cover frame 36 can cover the connection points, reducing the corrosive effects of external rainwater on the bolts at the connection points, thereby improving the stability of the outdoor vacuum circuit breaker installation.

[0028] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An outdoor vacuum circuit breaker comprising a circuit breaker body (10) and two mounting seats (20) welded and fixed on opposite sides of the bottom of the circuit breaker body (10), the two mounting seats (20) being used to support the circuit breaker body (10), and the bottoms of the two mounting seats (20) being connected with external mounting supports by bolts, characterized in that, A connecting cover assembly (30) is arranged between the circuit breaker body (10) and the two mounting seats (20), The connecting cover assembly (30) comprises a connecting structure and a cover frame (36), the cover frame (36) is hung below the circuit breaker body (10) by the connecting structure, and the cover frame (36) is movably capped on the inner side of the two mounting seats (20) by the connecting structure, the bottom of the cover frame (36) is provided with cover grooves (361) on the opposite sides, and the cover frame (36) covers the bolts connecting the two mounting seats (20) and the external mounting support through the cover grooves (361).

2. The outdoor vacuum circuit breaker according to claim 1, characterized in that: The connecting structure comprises a guide rod (31) fixedly arranged on the bottom of the circuit breaker body (10), the outer side of the guide rod (31) is sleeved with a sliding block (32) in sliding connection with the guide rod (31), the four corners of the sliding block (32) are rotatably connected with connecting arms (33), one end of each connecting arm (33) away from the sliding block (32) is rotatably connected with the middle part of a folding arm (34), the bottom end of each folding arm (34) is rotatably connected with the cover frame (36), and the top end of each folding arm (34) is rotatably connected with a lifting seat (35), and the four lifting seats (35) are fixedly connected to the bottom of the circuit breaker body (10).

3. An outdoor vacuum circuit breaker according to claim 2, characterized in that: The folding arm (34) comprises an upper arm (341) and a lower arm (342), the adjacent ends of the upper arm (341) and the lower arm (342) are rotatably connected with the adjacent connecting arms (33) by a pin shaft, the top end of the upper arm (341) is rotatably connected with the lifting seat (35), and the bottom end of the lower arm (342) is rotatably connected with the cover frame (36).

4. The outdoor vacuum circuit breaker according to claim 2, wherein: The sliding block (32) is a solid carbon steel block, the lower end of the guide rod (31) is provided with a limiting baffle with a diameter larger than that of the guide rod (31), and the sliding block (32) is movably arranged above the limiting baffle.

5. An outdoor vacuum circuit breaker according to any one of claims 1-4, characterized in that: The mounting seat (20) comprises a bearing part (21), a supporting part (22) and a fixing part (23), the bearing part (21) and the supporting part (22) are formed at the top and bottom of the supporting part (22) respectively, the bearing part (21) is welded and fixed with the circuit breaker body (10), and a plurality of fixing holes (231) are formed in the fixing part (23), and a bolt connecting the fixing part (23) and the external mounting support is inserted into the fixing hole (231).

6. An outdoor vacuum circuit breaker according to claim 5, characterized in that: The mounting seat (20) further comprises a reinforcing part (24), the reinforcing part (24) is formed between the bearing part (21) and the supporting part (22), and the reinforcing part (24) has a certain spacing with the fixing part (23).

7. An outdoor vacuum circuit breaker as claimed in claim 5, wherein: The fixing part (23) is further provided with a flow guide groove (232) penetrating through the fixing part (23), and the two ends of the cover frame (36) are formed with inclined surfaces inclined towards the flow guide groove (232).

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