Outdoor vacuum circuit breaker

Abstract

The invention 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] The invention relates to the technical field of vacuum circuit breakers, in particular to an outdoor vacuum circuit breaker. Background Art

[0002] The vacuum circuit breaker is named because its arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum. It has the advantages of small size, light weight, suitable for frequent operation, and no need for maintenance after arc extinguishing. It is widely used in distribution networks.

[0003] In the related art, a Chinese patent with publication number CN206098269U discloses an outdoor vacuum circuit breaker, which includes a box body, three poles arranged at the upper end of the box body, a current transformer respectively arranged on each pole, a lower outlet seat connected to the current transformer, a locking shaft arranged outside the box body, an opening and closing operating handle arranged on one side outside the box body, and an energy storage operating handle arranged on one side outside the box body.

[0004] The conventional installation method of the above outdoor vacuum circuit breaker is as follows: first fix the bracket on the electric pole, then place the box on the bracket, and then connect the box and the bracket by installing bolts to achieve the positioning of the box. However, since the installation bolts are exposed to the outside, they are prone to rust and aging after being exposed to the sun and rain for a long time, which affects the stability of the circuit breaker and needs to be improved. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] The present invention provides an outdoor vacuum circuit breaker, which solves the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an outdoor vacuum circuit breaker, comprising a circuit breaker body and two mounting seats, the two mounting seats are welded and fixed on two opposite sides of the bottom of the circuit breaker body, the two mounting seats are used to support the circuit breaker body, and the bottoms of the two mounting seats are connected to an external mounting bracket by bolts, characterized in that a connecting mask assembly is arranged between the circuit breaker body and the two mounting seats, the connecting mask assembly comprises a connecting structure and a mask frame, the mask frame is hoisted under the circuit breaker body by the connecting structure, and the mask frame is movably pressed on the inner sides of the two mounting seats by the connecting structure, mask grooves are provided on two opposite sides of the bottom of the mask frame, and the mask frame uses the mask grooves to cover the bolts connecting the two mounting seats to the external mounting bracket.

[0009] Preferably, the connecting structure includes a guide rod installed and fixed at the bottom of the circuit breaker body, the outer side of the guide rod is sleeved with a slider slidably connected thereto, the four corners of the slider are rotatably connected with connecting arms, one end of each connecting arm away from the slider is rotatably connected to the middle part of a folding arm, the bottom ends of the four folding arms are rotatably connected to the mask frame, and the top end of each folding arm is rotatably connected to a hanging seat, and the four hanging seats are fixedly connected to the bottom of the circuit breaker body.

[0010] It is further preferred that the folding arm includes an upper arm and a lower arm, and the adjacent ends of the upper arm and the lower arm are rotatably connected to the adjacent connecting arms by a pin shaft, the top end of the upper arm is rotatably connected to the hanging seat, and the bottom end of the lower arm is rotatably connected to the mask frame.

[0011] In a further preferred embodiment, the sliding block is configured as a solid carbon steel block, a limit baffle having a diameter greater than that of the guide rod is provided at the lower end of the guide rod, and the sliding block is movably disposed above the limit baffle.

[0012] In a further embodiment, the mounting seat includes a bearing portion, a supporting portion and a fixing portion, the bearing portion and the supporting portion are respectively formed at the top and bottom of the supporting portion, the bearing portion is welded and fixed to the circuit breaker body, a plurality of fixing holes are formed on the fixing portion, bolts connecting the fixing portion to an external mounting bracket are inserted in the fixing holes, a guide groove penetrating the fixing portion is also formed on the fixing portion, both ends of the mask frame are formed with inclined surfaces inclined toward the guide groove, the mounting seat also includes a reinforcement portion, the reinforcement portion is formed between the bearing portion and the supporting portion, and there is a certain distance between the reinforcement portion and the fixing portion.

[0013] (III) Beneficial effects

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

[0015] In the present invention, by connecting the cover assembly and the mounting seat, when the outdoor vacuum circuit breaker is installed and used on an external mounting bracket, the cover frame can be used to cover the connection part, thereby reducing the corrosion effect of external rainwater on the bolts at the connection part, thereby improving the installation stability of the outdoor vacuum circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0018] Figure 3 is a schematic structural diagram of a mounting base according to an implementation scheme;

[0019] Figure 4 is a schematic structural diagram of a connection mask assembly according to an embodiment;

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

[0021] In the figure: 10, circuit breaker body; 20, mounting seat; 21, bearing part; 22, supporting part; 23, fixing part; 231, fixing hole; 232, guide groove; 24, reinforcement part; 30, connecting cover assembly; 31, guide rod; 32, slider; 33, connecting arm; 34, folding arm; 341, upper arm; 342, lower arm; 35, lifting seat; 36, cover frame; 361, cover groove. DETAILED DESCRIPTION

[0022] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0023] See also Figure 1 and Figure 2 An outdoor vacuum circuit breaker includes a circuit breaker body 10, two mounting seats 20, and a connection cover assembly 30. The two mounting seats 20 are welded and fixed on two opposite sides of the bottom of the circuit breaker body 10, so that the two mounting seats 20 can be used to support the circuit breaker body 10, and the bottoms of the two mounting seats 20 can be connected to an external mounting bracket by bolts, so that the outdoor vacuum circuit breaker as a whole can be installed and set at a desired position for use. The connection cover assembly 30 is arranged between the circuit breaker body 10 and the two mounting seats 20, and is used to protect the connection bolts between the mounting seats 20 and the external mounting bracket to reduce the influence of rainwater rust.

[0024] See also Figure 3The mounting seat 20 may include a bearing portion 21, a supporting portion 22, a fixing portion 23 and a reinforcing portion 24. The bearing portion 21 and the supporting portion 22 are respectively formed at the top and bottom of the supporting portion 22. The bearing portion 21 is welded and fixed to the circuit breaker body 10. A plurality of fixing holes 231 are formed on the fixing portion 23. Bolts that connect the fixing portion 23 to the external mounting bracket can be inserted into the fixing holes 231. A guide groove 232 that passes through the fixing portion 23 is also formed on the fixing portion 23. Both ends of the mask frame 36 in the connecting mask assembly 30 are formed with inclined surfaces inclined toward the guide groove 232, so that the rainwater falling on it can be guided to the guide groove 232 and discharged downward while the mask bolts are covered. Reduce the accumulation of rainwater between the two mounting seats 20 and the connecting mask assembly 30. The reinforcing portion 24 is formed between the bearing portion 21 and the supporting portion 22, and 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 connection shield assembly 30 has a certain activity space.

[0025] See also Figure 4 and Figure 5 , the connection shield assembly 30 includes a connection structure and a shield frame 36. The shield frame 36 is hoisted under the circuit breaker body 10 by the connection structure, and the shield frame 36 is movably pressed on the inner side of the two mounting seats 20 by the connection structure. The bottom of the shield frame 36 is provided with shielding grooves 361 on both opposite sides, and the shield frame 36 can use the shielding grooves 361 to shield the bolts used for connecting the two mounting seats 20 with the external mounting bracket. In this embodiment, the connection structure includes a guide rod 31 installed and fixed at the bottom of the circuit breaker body 10, and the outer side of the guide rod 31 is sleeved with a slider 32 slidably connected thereto, and the slider 32 is set as a solid carbon steel block, and the lower end of the guide rod 31 is provided with a limit baffle having a diameter greater than the diameter of the guide rod 31, so that the slider 32 can be pushed upward above the limit baffle and fall under the action of gravity to contact the limit baffle when not pushed. The four corners of the slider 32 are rotatably connected to connecting arms 33, and one end of each connecting arm 33 away 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 mask frame 36, and the top end of each folding arm 34 is rotatably connected to a hanging seat 35. The four hanging 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 mask 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 hanging seat 35, and the bottom end of the lower arm 342 is rotatably connected to the mask frame 36.

[0027] When installing or disassembling, the user can push and support the mask frame 36 so that the mask frame 36 is separated 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 the installation is completed, the mask frame 36 is loosened so that it moves down and covers the bottom of the two mounting seats 20 under the push of the four folding arms 34, thereby protecting the bolts. Furthermore, by connecting the mask assembly 30 and the mounting seat 20, when the outdoor vacuum circuit breaker is installed and used on the external mounting bracket, the mask frame 36 can be used to cover the connection part, thereby reducing the corrosion effect of external rainwater on the bolts at the connection part, thereby improving the stability of the installation of the outdoor vacuum circuit breaker.

[0028] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which will not be described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An outdoor vacuum circuit breaker, comprising a circuit breaker body (10) and two mounting seats (20), wherein the two mounting seats (20) are welded and fixed on two opposite sides of the bottom of the circuit breaker body (10), the two mounting seats (20) are used to support the circuit breaker body (10), and the bottoms of the two mounting seats (20) are connected to an external mounting bracket by bolts, characterized in that: A connection cover assembly (30) is arranged between the circuit breaker body (10) and the two mounting seats (20), The connection mask assembly (30) comprises a connection structure and a mask frame (36); the mask frame (36) is hoisted below the circuit breaker body (10) by means of the connection structure, and the mask frame (36) is movably pressed onto the inner sides of the two mounting seats (20) by means of the connection structure; mask grooves (361) are provided on opposite sides of the bottom of the mask frame (36), and the mask frame (36) uses the mask grooves (361) to cover the bolts connecting the two mounting seats (20) and the external mounting bracket.

2. An outdoor vacuum circuit breaker according to claim 1, characterized in that: The connection structure comprises a guide rod (31) fixedly mounted on the bottom of the circuit breaker body (10); a slider (32) slidably connected to the guide rod (31) is sleeved on the outer side of the guide rod (31); four corners of the slider (32) are rotatably connected to connecting arms (33); one end of each connecting arm (33) away from the slider (32) is rotatably connected to the middle of a folding arm (34); the bottom ends of the four folding arms (34) are rotatably connected to a mask frame (36); and the top end of each folding arm (34) is rotatably connected to a hanging seat (35); and the four hanging 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 to the adjacent connecting arm (33) by means of a pin shaft; the top end of the upper arm (341) is rotatably connected to the hanging seat (35); and the bottom end of the lower arm (342) is rotatably connected to the mask frame (36).

4. An outdoor vacuum circuit breaker according to claim 2, characterized in that: The sliding block (32) is configured as a solid carbon steel block, the lower end of the guide rod (31) is provided with a limit baffle having a diameter greater than the diameter of the guide rod (31), and the sliding block (32) is movably arranged above the limit baffle.

5. An outdoor vacuum circuit breaker according to any one of claims 1 to 4, characterized in that: The mounting seat (20) comprises a bearing portion (21), a supporting portion (22) and a fixing portion (23); the bearing portion (21) and the supporting portion (22) are respectively formed at the top and the bottom of the supporting portion (22); the bearing portion (21) and the circuit breaker body (10) are fixed by welding; a plurality of fixing holes (231) are formed on the fixing portion (231); bolts for connecting the fixing portion (23) to an external mounting bracket are inserted into the fixing holes (231).

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

7. An outdoor vacuum circuit breaker according to claim 5, characterized in that: The fixing portion (23) is also formed with a guide groove (232) penetrating the fixing portion (23), and both ends of the mask frame (36) are formed with inclined surfaces inclined toward the guide groove (232).

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