An interference-proof vacuum circuit breaker

Abstract

The utility model provides a kind of anti-interference vacuum circuit breaker, belong to vacuum circuit breaker field, including base, the base center upper end is fixedly installed vacuum circuit breaker body, the base both sides upper end is equipped with bottom-mounted component, the bottom-mounted component upper end is fixedly installed with vertical plate, the vertical plate upside is cooperatively provided with shade component, after baffle completely separates from clamping groove, front and back direction push-in plate makes it separate from insertion slot, cover plate can be separately disassembled, to clean the dust inside and surface, while the anti-interference effect detection of cover plate, ensure the anti-interference effect of subsequent use, after the maintenance of cover plate, insert-in plate from front and back direction into insertion slot, loosen the pressure of disassembly plate, spring rod outwardly push-in panel drive baffle to insert into aligned clamping groove, the fixation of insert-in plate can be completed, to realize the quick installation of cover plate maintenance, improve the maintenance convenience of circuit breaker anti-interference structure.

Description

Technical Field

[0001] This utility model relates to the field of vacuum circuit breakers, and more specifically, to an anti-interference vacuum circuit breaker. Background Technology

[0002] Vacuum circuit breakers are named for their high vacuum nature, which is the medium used for arc extinguishing and the insulating medium in the contact gap after arc extinguishing. They are characterized by their small size, light weight, suitability for frequent operation, and maintenance-free arc extinguishing, making them widely used in power distribution networks. Vacuum circuit breakers can be used in outdoor power plants and substations for the protection and control of electrical equipment.

[0003] A search revealed that Chinese patent CN213519727U discloses "An Anti-interference Outdoor Vacuum Circuit Breaker," comprising a vacuum circuit breaker body and an installation assembly with a maintenance mechanism. The installation assembly with the maintenance mechanism includes a base, a ladder, a metal flexible hose, and a lighting fixture. The base is located at the bottom of the vacuum circuit breaker body, and support rods are connected to the four corners of the base. Each support rod is fixedly connected to a foundation block at its bottom end. The ladder includes connecting rods, handrails, and climbing rods. Two connecting rods and handrails are provided, with each connecting rod movably connected to a corresponding support rod. While the installation assembly with the maintenance mechanism facilitates quick and stable maintenance of the vacuum circuit breaker body installed at a higher position, it still has the following drawbacks: (1) The existing anti-interference structure of vacuum circuit breakers can only isolate the static electricity at the bottom of the circuit breaker, and cannot block static electricity or electromagnetic interference in the air, thus affecting the scope of anti-interference.

[0004] (2) The existing anti-interference structure of vacuum circuit breakers is fixed by multiple sets of bolts. The anti-interference structure installed outdoors will suffer wear and tear over a long period of time, which will affect the anti-interference effect. The multiple bolt installation structure also affects the ease of disassembly and assembly.

[0005] Therefore, we have made improvements and proposed an anti-interference vacuum circuit breaker. Utility Model Content

[0006] The purpose of this utility model is to address the issue that the existing anti-interference structure of vacuum circuit breakers can only isolate static electricity at the bottom of the circuit breaker and cannot block static electricity or electromagnetic interference in the air, thus affecting the range of anti-interference. Furthermore, the existing anti-interference structure of vacuum circuit breakers is fixed by multiple sets of bolts, and the anti-interference structure installed outdoors for a long time suffers wear and tear, which affects the anti-interference effect. The multiple bolt installation structure also affects the convenience of disassembly and assembly.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution: An anti-interference vacuum circuit breaker to improve the above-mentioned problems.

[0008] The present invention is as follows: The base includes a base on which a vacuum circuit breaker body is fixedly installed at the upper center. The upper sides of the base are provided with base mounting components. A vertical plate is fixedly installed on the upper part of the base mounting components. A shielding component is provided on the upper side of the vertical plate. The base assembly includes mounting seats fixedly installed on the upper ends of both sides of the base. The upper end of the mounting seat has a slot, and a plate can be detachably inserted into the slot. The shielding assembly includes a slot opened inside the lower end of the upright plate, a first conical tooth provided on the inner wall of the front end of the slot, a self-locking knob connected to the front end of the first conical tooth, and a second conical tooth provided on the inner wall of the upper end of the slot that cooperates with the first conical tooth.

[0009] As a preferred technical solution of this utility model, the insert plate has a groove inside on the side away from the vacuum circuit breaker body, and the insert plate is slidably disposed inside the groove.

[0010] As a preferred technical solution of this utility model, a card plate is fixedly installed on the lower outer wall of the panel, and a slot is provided on the side wall of the slot to cooperate with the card plate.

[0011] As a preferred technical solution of this utility model, a disassembly plate is fixedly installed on the upper outer wall of the side of the insert away from the card plate, and a spring rod is provided on the back side of the side of the insert away from the disassembly plate.

[0012] As a preferred technical solution of this utility model, a telescopic groove is provided on the outer side of the upper end of the hollow groove, and a screw is rotatably provided inside the telescopic groove, with a telescopic plate fitted on the outer wall of the screw.

[0013] As a preferred technical solution of this utility model, the side wall of the telescopic groove is provided with a limiting groove, and the side wall of the telescopic plate is provided with a limiting plate that cooperates with the limiting groove.

[0014] As a preferred technical solution of this utility model, a cover plate is installed on the outer upper end of the telescopic plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: In the solution of this utility model: 1. By using a set of first conical teeth, self-locking knob, second conical teeth, screw, telescopic plate, limiting plate and cover plate, when it is necessary to adjust the installation height of the anti-interference cover plate according to different models and sizes of vacuum circuit breaker bodies, turning the self-locking knob drives the first conical teeth connected to it to rotate, which in turn drives the second conical teeth to rotate, which in turn drives the screw connected to it to rotate. Through the engagement of the thread set on the outer wall, the telescopic plate is driven to slide in the telescopic groove. Under the limitation of the limiting plate embedded in the limiting groove, the upper cover plate is driven to stably adjust the installation height, so that the anti-interference structure can be used on the outside of various models of vacuum circuit breakers, improving the versatility of the anti-interference structure; 2. With the included insert plate, insert plate, spring rod, and locking plate, when the cover plate needs to be disassembled for maintenance, press the two side disassembly plates to slide them into the recess, causing the locking plate installed at the lower end to slide into the recess, thus disengaging the locking plate from the slot. Simultaneously, press the spring rod to retract it. After the locking plate is completely disengaged from the slot, push the insert plate in the front-back direction to disengage it from the slot, allowing the cover plate to be disassembled individually for cleaning internal and surface dust. This also allows for testing the cover plate's anti-interference effect, ensuring its effectiveness in subsequent use. After maintenance, insert the insert plate into the slot from the front-back direction, release the pressure on the disassembly plates, and the spring rod pushes the insert plate outwards, causing the locking plate to insert into the aligned slot, thus securing the insert plate. This enables quick installation for cover plate maintenance, improving the ease of maintenance of the circuit breaker's anti-interference structure. Attached Figure Description

[0016] Figure 1 A frontal schematic diagram of an anti-interference vacuum circuit breaker provided by this utility model; Figure 2 A schematic diagram of the bottom-mounted assembly of an anti-interference vacuum circuit breaker provided by this utility model; Figure 3 A schematic cross-sectional view of the bottom-mounted assembly of an anti-interference vacuum circuit breaker provided by this utility model; Figure 4 A schematic diagram of a shielding assembly for an anti-interference vacuum circuit breaker provided by this utility model.

[0017] The image shows: 1. Base; 2. Vacuum circuit breaker body; 301. Mounting base; 302. Slot; 303. Insert plate; 304. Embedded groove; 305. Inserted plate; 306. Spring rod; 307. Locking plate; 308. Locking groove; 309. Removal plate; 4. Vertical plate; 501. Empty groove; 502. First conical tooth; 503. Self-locking knob; 504. Second conical tooth; 505. Telescopic groove; 506. Screw; 507. Telescopic plate; 508. Limiting groove; 509. Limiting plate; 510. Cover plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0019] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0020] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] like Figure 1-4 As shown, this embodiment proposes an anti-interference vacuum circuit breaker, including a base 1, a vacuum circuit breaker body 2 fixedly installed at the upper center of the base 1, bottom mounting components arranged at the upper ends of both sides of the base 1, a vertical plate 4 fixedly installed at the upper end of the bottom mounting components, and a shielding component arranged on the upper side of the vertical plate 4. The base assembly includes mounting bases 301 fixedly installed on the upper ends of both sides of the base 1. The upper end of the mounting base 301 is provided with a slot 302, and a plate 303 is detachably inserted into the slot 302. The shielding assembly includes a slot 501 opened inside the lower end of the upright plate 4. The inner wall of the front end of the slot 501 is provided with a first conical tooth 502. The front end of the first conical tooth 502 is connected to a self-locking knob 503. The inner wall of the upper end of the slot 501 is provided with a second conical tooth 504 that cooperates with the first conical tooth 502.

[0023] like Figure 3 As shown, the insert plate 303 has a groove 304 on the side away from the vacuum circuit breaker body 2. The insert plate 305 is slidably disposed inside the groove 304. The insert plate 305 drives the card plate 307 to insert into the aligned card slot 308, thereby completing the fixing of the insert plate 303 and realizing the quick installation for maintenance of the cover plate 510.

[0024] like Figure 2As shown, a card plate 307 is fixedly installed on the lower outer wall of the insert plate 305. The side wall of the slot 302 is provided with a slot 308 that cooperates with the card plate 307. After the card plate 307 is completely disengaged from the slot 308, the insert plate 303 is pushed in the front-back direction to disengage it from the slot 302, so that the cover plate 510 can be removed separately.

[0025] like Figure 3 As shown, a disassembly plate 309 is fixedly installed on the upper outer wall of the side of the insert plate 305 away from the card plate 307. A spring rod 306 is provided on the back side of the side of the insert plate 305 away from the disassembly plate 309. When the spring rod 306 is squeezed to retract, the card plate 307 is completely disengaged from the card slot 308. Then, the insert plate 303 is pushed in the front-back direction to disengage it from the slot 302, so that the cover plate 510 can be removed separately for cleaning of the dust inside and on the surface. At the same time, the anti-interference effect of the cover plate 510 is tested to ensure the anti-interference effect for subsequent use. After the cover plate 510 is maintained, the insert plate 303 is inserted into the slot 302 from the front-back direction. The pressure on the disassembly plate 309 is released, and the spring rod 306 pushes the insert plate 305 outward, causing the card plate 307 to be inserted into the aligned card slot 308.

[0026] like Figure 4 As shown, the upper outer side of the empty groove 501 is provided with a telescopic groove 505. A screw 506 is rotatably provided inside the telescopic groove 505. A telescopic plate 507 is fitted on the outer wall of the screw 506. The telescopic plate 507 slides in the telescopic groove 505. Under the limitation of the limiting plate 509 embedded in the limiting groove 508, it drives the cover plate 510 installed at the upper end to stably adjust the installation height.

[0027] like Figure 4 As shown, the side wall of the telescopic groove 505 is provided with a limiting groove 508, and the side wall of the telescopic plate 507 is provided with a limiting plate 509 that cooperates with the limiting groove 508. When the limiting plate 509 is embedded in the limiting groove 508, it drives the upper end of the cover plate 510 to stably adjust the installation height, so that the anti-interference structure can be used on the outside of various types of vacuum circuit breakers.

[0028] like Figure 4 As shown, a cover plate 510 is installed on the upper external side of the telescopic plate 507. When the screw 506 rotates, the telescopic plate 507 slides in the telescopic groove 505 through the thread engagement of the outer wall. Under the limitation of the limiting plate 509 embedded in the limiting groove 508, the cover plate 510 installed at the upper end is driven to stably adjust the installation height, so that the anti-interference structure can be used on the outside of various types of vacuum circuit breakers, improving the versatility of the anti-interference structure.

[0029] Specifically, when using this vacuum circuit breaker: when it is necessary to adjust the installation height of the anti-interference cover plate 510 according to different models and sizes of vacuum circuit breaker body 2, turning the self-locking knob 503 drives the first conical tooth 502 connected to it to rotate, which in turn drives the second conical tooth 504 to rotate, thereby driving the screw 506 connected to it to rotate. Through the thread engagement provided on the outer wall, the telescopic plate 507 slides in the telescopic groove 505. Under the limitation of the limiting plate 509 embedded in the limiting groove 508, the upper cover plate 510 is stably adjusted to adjust the installation height, so that the anti-interference structure can be used on the outside of various models of vacuum circuit breakers, improving the versatility of the anti-interference structure. When it is necessary to disassemble and maintain the cover plate 510, press the two side disassembly plates 309 to make them slide into the groove 304, which drives the lower clamping plate. 307 slides into the groove 304, causing the retaining plate 307 to disengage from the groove 308. Simultaneously, the spring rod 306 is compressed and retracted. After the retaining plate 307 is completely disengaged from the groove 308, the insert plate 303 is pushed back and forth to disengage from the slot 302, allowing the cover plate 510 to be disassembled separately for cleaning of internal and surface dust. The anti-interference effect of the cover plate 510 is also tested to ensure its effectiveness in subsequent use. After maintenance of the cover plate 510, the insert plate 303 is inserted into the slot 302 from the front and back. The pressure on the disassembly plate 309 is released, and the spring rod 306 pushes the insert plate 305 outward, causing the retaining plate 307 to insert into the aligned groove 308, thus completing the fixation of the insert plate 303. This enables quick installation for maintenance of the cover plate 510, improving the ease of maintenance of the circuit breaker's anti-interference structure.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An anti-interference vacuum circuit breaker, comprising a base (1), characterized in that: The base (1) has a vacuum circuit breaker body (2) fixedly installed at the upper center. The base (1) has a bottom mounting assembly on both sides at the upper end. The bottom mounting assembly has a vertical plate (4) fixedly installed on the upper end. The vertical plate (4) has a shielding assembly on its upper side. The base assembly includes mounting bases (301) fixedly installed on the upper ends of both sides of the base (1). The mounting base (301) has a slot (302) at the upper end, and a plate (303) can be detachably inserted into the slot (302). The shielding assembly includes a slot (501) opened inside the lower end of the upright plate (4), a first conical tooth (502) is provided on the inner wall of the front end of the slot (501), a self-locking knob (503) is connected to the front end of the first conical tooth (502), and a second conical tooth (504) is provided on the inner wall of the upper end of the slot (501) to cooperate with the first conical tooth (502).

2. The anti-interference vacuum circuit breaker according to claim 1, characterized in that, The insert plate (303) has a groove (304) on the side away from the vacuum circuit breaker body (2), and the insert plate (305) is slidably disposed inside the groove (304).

3. The anti-interference vacuum circuit breaker according to claim 2, characterized in that, A card plate (307) is fixedly installed on the lower outer wall of the panel (305), and a slot (308) is provided on the side wall of the slot (302) to cooperate with the card plate (307).

4. The anti-interference vacuum circuit breaker according to claim 3, characterized in that, A disassembly plate (309) is fixedly installed on the upper outer wall of the side of the panel (305) away from the card plate (307), and a spring rod (306) is provided on the back side of the side of the panel (305) away from the disassembly plate (309).

5. The anti-interference vacuum circuit breaker according to claim 1, characterized in that, The upper outer side of the slot (501) is provided with a telescopic groove (505), and a screw (506) is rotatably provided inside the telescopic groove (505). A telescopic plate (507) is fitted on the outer wall of the screw (506).

6. The anti-interference vacuum circuit breaker according to claim 5, characterized in that, The expansion groove (505) has a limiting groove (508) on its side wall, and the expansion plate (507) has a limiting plate (509) on its side wall that cooperates with the limiting groove (508).

7. The anti-interference vacuum circuit breaker according to claim 5, characterized in that, A cover plate (510) is installed on the upper exterior of the telescopic plate (507).

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