A pole-mounted vacuum circuit breaker convenient to disassemble

Abstract

The utility model relates to the field of electrical equipment discloses a column vacuum circuit breaker convenient to dismount, including circuit breaker main part and electric pole cross bar, the middle position fixed setting of circuit breaker main part lower extreme has the upper concave board, the upper end fixed setting of electric pole cross bar has the lower convex board, the lower extreme fixed setting of circuit breaker main part has the protection mechanism, the protection mechanism includes two fixed blocks, two baffle, two extension boards and two connecting boards, two the fixed block opposite one end all set up two long sliding slots, two the fixed block lower extreme all set up two recesss, two the extension board upper extreme all fixed settings have two vertical rods, four The vertical rod two two between opposite one end all fixed settings have two limit posts. In the utility model, the vacuum circuit breaker can guarantee the protection effect to the bolt fixed place, and also can guarantee the convenience of dismounting operation.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment, and in particular to a pole-mounted vacuum circuit breaker that is easy to assemble and disassemble. Background Technology

[0002] Primary and secondary integration refers to the deep integration and collaborative design of primary equipment (such as switchgear, circuit breakers, and instrument transformers) and secondary equipment (such as protection devices, communication modules, and distribution terminals) in a power system to achieve functional integration, information sharing, and intelligent control. Pole-mounted vacuum circuit breakers are a common type of such device. A pole-mounted vacuum circuit breaker is a circuit breaker installed on a utility pole to control the opening and closing of related circuits.

[0003] The existing patent "A Primary and Secondary Integrated Pole-Mounted Vacuum Circuit Breaker (Publication No.: CN223427415U)" discloses "In the field of vacuum circuit breaker technology, a primary and secondary integrated pole-mounted vacuum circuit breaker is disclosed, comprising: a base frame, the base frame being a rectangular plate with an inverted L-shaped cross-section, a circuit breaker body being disposed on the top of the base frame, and a threaded groove being formed on the front wall of the base frame; and an anti-corrosion structure, which is disposed on the wall of the base frame for connection with the circuit breaker body, and the anti-corrosion structure includes: an alignment plate, a locking plate, and studs." The alignment plates are symmetrically fixed to the inner bottom surface of the base frame, the locking plates are symmetrically fixed to the bottom of the circuit breaker body, and the studs are threadedly connected to the bottom of the screw plate. The symmetrical alignment plates can engage with the symmetrical locking plates. The anti-corrosion structure is locked in place by the sliding engagement of the locking plates and the alignment plates and the locking of the studs. When rain comes, the locking plates and the rainproof box can completely surround and block the studs, thus effectively preventing rainwater from corroding the studs. Moreover, this solution only requires turning four studs to complete the installation.

[0004] The aforementioned patent includes an anti-corrosion structure, but this structure is a single-sided structure, which often provides limited protection. In actual use, rainwater often tilts under the influence of wind, which may corrode the bolt fixing points and affect the installation and removal of the circuit breaker. In addition, the studs in the device need to be installed from the bottom, which may obstruct the view during high-altitude operations and increase the difficulty of operation.

[0005] Therefore, those skilled in the art have provided a pole-mounted vacuum circuit breaker that is easy to install and disassemble, in order to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a pole-mounted vacuum circuit breaker that is easy to assemble and disassemble. This vacuum circuit breaker can ensure the protection of the bolt fixing points and also ensure the convenience of disassembly and assembly operations.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A pole-mounted vacuum circuit breaker that is easy to assemble and disassemble includes a circuit breaker body and a pole crossbar. An upper concave plate is fixedly installed at the middle position of the lower end of the circuit breaker body, a lower convex plate is fixedly installed at the upper end of the pole crossbar, and a protective mechanism is fixedly installed at the lower end of the circuit breaker body. The protective mechanism includes two fixed blocks, two baffles, two extension plates, and two connecting plates. Each of the two fixed blocks has two long sliding grooves at one opposite end and two grooves at the lower end. Each of the two baffles has two long sliders fixedly installed at one opposite end. Each of the four long sliders has two limiting grooves at opposite ends between each pair. Each of the two extension plates has two vertical rods fixedly installed at the upper end and two limiting posts fixedly installed at opposite ends between each pair of the four vertical rods.

[0008] Furthermore, the upper concave plate and the lower convex plate are interlocked, and the upper concave plate and the lower convex plate are fixed together by bolts.

[0009] Furthermore, the two fixing blocks are fixedly installed at the lower end of the circuit breaker body near both sides, and the two extension plates are respectively located at the lower ends of the two fixing blocks.

[0010] Furthermore, the two baffles are located at the front and rear ends of the two fixed blocks respectively, and the upper ends of the two baffles are tightly fitted with the lower end of the circuit breaker body.

[0011] Furthermore, the four long sliders are located at two different heights, and the opposite ends of the four long sliders are respectively slidably disposed in the four long grooves.

[0012] Furthermore, the eight limiting grooves correspond to the eight limiting posts respectively, and the eight limiting posts are respectively fitted into the eight limiting grooves.

[0013] Furthermore, the front and rear ends of the two connecting plates are respectively fixedly connected to four vertical rods, the four vertical rods are slidably disposed in four grooves, and the two connecting plates are slidably disposed in two fixed blocks.

[0014] This utility model has the following beneficial effects: 1. This utility model proposes a pole-mounted vacuum circuit breaker that is easy to assemble and disassemble. The vacuum circuit breaker is equipped with a protective mechanism. During use, the fixing block and the extension plate are located on both sides of the protective mechanism, and the baffle is located at the front and rear ends of the protective mechanism. The baffle is connected to the fixing block through a long slider. At the same time, as the extension plate moves horizontally, the limiting post and the limiting groove engage, which restricts the long slider and ensures the stable connection of the two baffles. This protective mechanism can surround the bolts and effectively prevent rainwater from corroding the bolts, thus ensuring the smooth assembly and disassembly of the circuit breaker.

[0015] 2. This utility model proposes a pole-mounted vacuum circuit breaker that is easy to assemble and disassemble. The vacuum circuit breaker is provided with an upper concave plate and a lower convex plate. During use, the upper concave plate and the lower convex plate correspond to each other and are stably connected by bolts. The bolts are fixed from the front and rear ends of the device. The detachability of the baffle can avoid obstructing the view during disassembly and assembly operations, which is convenient for workers to operate when working at height. It can ensure both the convenience and accuracy of operation. Attached Figure Description

[0016] Figure 1 This is an axonometric view of the present invention; Figure 2 This is an axial view of the upper concave plate and the lower convex plate in this utility model; Figure 3 This is a partial sectional axonometric view of the protective mechanism in this utility model; Figure 4 This is a cross-sectional axial view of the protective mechanism after it has been unfolded in this utility model.

[0017] Legend: 1. Circuit breaker body; 2. Pole crossbar; 3. Upper concave plate; 4. Lower convex plate; 5. Protective mechanism; 501. Fixing block; 502. Long slide groove; 503. Groove; 504. Baffle; 505. Long slider; 506. Limiting groove; 507. Extension plate; 508. Connecting plate; 509. Vertical rod; 510. Limiting post. Detailed Implementation

[0018] 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.

[0019] Reference Figure 1 , Figure 2The present invention provides an embodiment of a pole-mounted vacuum circuit breaker that is easy to assemble and disassemble, comprising a circuit breaker body 1 and a pole crossbar 2. An upper concave plate 3 is fixedly provided at the middle position of the lower end of the circuit breaker body 1, a lower convex plate 4 is fixedly provided at the upper end of the pole crossbar 2, and a protective mechanism 5 is fixedly provided at the lower end of the circuit breaker body 1. The upper concave plate 3 and the lower convex plate 4 are interlocked and fixed together by bolts. Specifically, the main body 1 of the circuit breaker is the core structural part that realizes the core function of the circuit breaker. It mainly consists of two parts: the arc extinguishing system and the transmission control system. The arc extinguishing system is located at the upper end. It extinguishes the arc when the current is cut off, preventing high voltage arc from damaging the equipment. It is the key to the circuit breaker to realize circuit breaking. The transmission control system is located at the lower end. It drives the disconnecting switch to open and close through compressed air and electromagnetic control, realizing the mechanical operation and state switching of the circuit breaker. The two work together. One end of the horizontal pole 2 is fixedly connected to the vertical pole. The horizontal pole 2 can fix the circuit breaker body 1 through the connection of the upper concave plate 3 and the lower convex plate 4, and can also support the circuit breaker body 1. The upper concave plate 3 and the lower convex plate 4 each have two threaded holes on their sides. The upper part of the lower convex plate 4 is engaged in the middle of the upper concave plate 3, so that the threaded holes on the surfaces of the two correspond to each other. The upper concave plate 3 and the lower convex plate 4 can be stably connected by the threaded bolt.

[0020] Reference Figure 3 , Figure 4 The protective mechanism 5 includes two fixed blocks 501, two baffles 504, two extension plates 507 and two connecting plates 508. Each of the two fixed blocks 501 has two long sliding grooves 502 at one end opposite to each other, and two grooves 503 at the lower end of each of the two fixed blocks 501. Each of the two baffles 504 has two long sliders 505 fixedly installed at one end opposite to each other. Each of the four long sliders 505 has two limiting grooves 506 at one end opposite to each other. Each of the two extension plates 507 has two vertical rods 509 fixedly installed at the upper end, and each of the four vertical rods 509 has two limiting posts 510 fixedly installed at one end opposite to each other. Two fixed blocks 501 are fixedly installed at the lower end of the circuit breaker body 1 near both sides. Two extension plates 507 are respectively located at the lower end of the two fixed blocks 501. Two baffles 504 are respectively located at the front and rear ends of the two fixed blocks 501. The upper ends of the two baffles 504 are tightly fitted with the lower end of the circuit breaker body 1. Four long sliders 505 are located at two different heights. The four long sliders 505 are slidably installed in the four long slide grooves 502 with opposite ends in each pair. The eight limiting grooves 506 correspond to the eight limiting posts 510 respectively, and the eight limiting posts 510 are respectively sleeved in the eight limiting grooves 506. The front and rear ends of the two connecting plates 508 are respectively fixedly connected to the four vertical rods 509. The four vertical rods 509 are respectively slidably arranged in the four grooves 503. The two connecting plates 508 are respectively slidably arranged in the two fixing blocks 501. Specifically, the fixing block 501 and the extension plate 507 are located on both sides of the protective mechanism 5, and the two baffles 504 are located at the front and rear ends of the protective mechanism 5, surrounding the upper concave plate 3 and the lower convex plate 4 located in the middle, which can effectively prevent rainwater from corroding the fixing bolts. The baffles 504 are perpendicular to the long slider 505. The connection between the baffles 504 and the fixing block 501 is realized through the limiting effect of the long slider 505 and the long slide groove 502. The extension plate 507 is located at the lower end of the fixed block 501, and the two vertical rods 509 at its upper end are inserted into the groove 503. At the same time, the connecting plate 508 connecting the two vertical rods 509 is located in the fixed block 501. The connecting plate 508 can only move horizontally in the fixed block 501, which allows the extension plate 507 to slide in the horizontal direction and remain aligned with the fixed block 501 in the vertical direction, thus preventing rainwater erosion on both sides of the device. Two limiting posts 510 are fixed on a vertical rod 509, which can realize the synchronous limiting of two long sliders 505 with different heights. The heights of the long sliders 505 on the two baffles 504 are not the same. At the same time, the heights of the two long slide grooves 502 on the fixing block 501 are also different. The long slider 505 on the baffle 504 near the front end is higher and corresponds to the long slide groove 502 near the upper end. The long slider 505 on the baffle 504 near the rear end is lower and corresponds to the long slide groove 502 near the lower end. It should be noted that the extension plate 507 achieves the engagement of the limiting post 510 and the limiting groove 506 by moving horizontally. Since the lower end face of the extension plate 507 is in close contact with the upper end face of the pole crossbar 2, the friction between the two is relatively large. In actual use or when slight vibration occurs, the limiting post 510 and the limiting groove 506 will not separate. Only when the extension plate 507 is moved horizontally with a large force can the limiting post 510 and the limiting groove 506 be separated.

[0021] Working principle: When the vacuum circuit breaker is installed, the two baffles 504 are not installed initially, and the front and rear ends of the protection mechanism 5 are in an unused state. The concave part at the lower end of the upper concave plate 3 corresponds to the convex part at the upper end of the lower convex plate 4, and the threaded holes at the upper ends of the two are aligned. The two are then stably connected by bolts. Next, the two extension plates 507 move to the sides to retract the limiting post 510 into the fixed block 501. The long slider 505 is aligned with the long slide groove 502, and the baffle 504 is pushed to make the long slider 505 slide along the long slide groove 502 until the baffle 504 contacts the fixed block 501. At this time, the limiting grooves 506 on the long slider 505 correspond one-to-one with the positions of the limiting post 510. After the two baffles 504 are installed, the two extension plates 507 are moved to the middle so that the limiting post 510 is fitted into the limiting groove 506, thereby limiting the long slider 505 and ensuring the stable installation of the baffle 504.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pole-mounted vacuum circuit breaker that is easy to assemble and disassemble, comprising a circuit breaker body (1) and a pole crossbar (2), characterized in that: An upper concave plate (3) is fixedly installed at the middle position of the lower end of the circuit breaker body (1), a lower convex plate (4) is fixedly installed at the upper end of the pole crossbar (2), and a protective mechanism (5) is fixedly installed at the lower end of the circuit breaker body (1). The protective mechanism (5) includes two fixed blocks (501), two baffles (504), two extension plates (507) and two connecting plates (508). Two long sliding grooves (502) are opened at opposite ends of the two fixed blocks (501). Two grooves (503) are opened at the lower ends of the two fixed blocks (501). Two long sliders (505) are fixedly installed at opposite ends of the two baffles (504). Two limiting grooves (506) are opened at opposite ends of the four long sliders (505). Two vertical rods (509) are fixedly installed at the upper ends of the two extension plates (507). Two limiting posts (510) are fixedly installed at opposite ends of the four vertical rods (509).

2. The pole-mounted vacuum circuit breaker for easy assembly and disassembly according to claim 1, characterized in that: The upper concave plate (3) and the lower convex plate (4) are interlocked and fixed together by bolts.

3. The pole-mounted vacuum circuit breaker for easy assembly and disassembly according to claim 1, characterized in that: The two fixing blocks (501) are fixedly installed at the lower end of the circuit breaker body (1) near both sides, and the two extension plates (507) are respectively located at the lower end of the two fixing blocks (501).

4. A pole-mounted vacuum circuit breaker that is easy to install and disassemble according to claim 1, characterized in that: The two baffles (504) are located at the front and rear ends of the two fixed blocks (501) respectively, and the upper ends of the two baffles (504) are closely attached to the lower end of the circuit breaker body (1).

5. A pole-mounted vacuum circuit breaker that is easy to install and disassemble according to claim 1, characterized in that: The four long sliders (505) are located at two different heights, and the four long sliders (505) are slidably disposed in the four long slide grooves (502) with opposite ends of each pair.

6. A pole-mounted vacuum circuit breaker that is easy to install and disassemble according to claim 1, characterized in that: The eight limiting grooves (506) correspond to the eight limiting posts (510) respectively, and the eight limiting posts (510) are respectively fitted into the eight limiting grooves (506).

7. A pole-mounted vacuum circuit breaker that is easy to install and disassemble according to claim 1, characterized in that: The front and rear ends of the two connecting plates (508) are respectively fixedly connected to four vertical rods (509), the four vertical rods (509) are respectively slidably disposed in four grooves (503), and the two connecting plates (508) are respectively slidably disposed in two fixing blocks (501).

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