High-precision high-voltage circuit breaker housing

Abstract

High-precision high-voltage circuit breaker housing. This relates to the field of circuit breaker accessories. It includes a body with a pair of fixing strips at its bottom. These fixing strips are flat and extend to the outside of the body. Below the fixing strips is a support strip, which is L-shaped and connected to a mounting surface. At the top of the horizontal end of the support strip are a pair of limiting posts. The fixing strip has sliding holes, the length of which is greater than the distance between the pair of limiting posts. At the top of the fixing strip, outside the sliding holes, is a vertical plate. A lead screw passes between the pair of vertical plates, through the limiting plates and the limiting posts. The lead screw is threaded to the vertical plates, and there is a sliding fit between the lead screw and the limiting posts. In this application, the quick and reliable installation of the body is achieved through the fit between the lead screw and the vertical plates, and the limiting action of the limiting posts by a second nut.

Description

Technical Field

[0001] This application relates to the field of circuit breaker accessories, specifically to a high-precision high-voltage circuit breaker housing. Background Technology

[0002] Currently, outdoor vacuum circuit breakers are being used more and more widely in power distribution networks, and they have the advantages of small size, light weight, suitability for frequent operation, and no need for maintenance when extinguishing arcs.

[0003] Chinese patent document CN214378193U discloses a vacuum circuit breaker housing, specifically a base plate. The upper surface of the base plate has four side plates, forming a cavity. Each side plate has a fixing hole communicating with the cavity. An operating plate is located on the side of each side plate away from the cavity, and an operating hole is located on the side of the operating plate away from the side plate. The operating plate is connected to the side plate via a locking structure. Each side plate has an insertion hole communicating with the cavity. The locking structure includes an operating rod passing through the insertion hole. An operating block is detachably connected to the side of the operating rod away from the operating plate. A spring is fixedly connected to the end of the operating block facing the operating plate. When the operating plate is installed on the side plate, the spring is compressed, and the end of the spring away from the operating block abuts against the end face of the side plate away from the operating plate. The fixing hole communicates with the operating hole. This patent improves the strength of the side plate.

[0004] Although the aforementioned patent improves the strength of the side plate, the housing involved is fixed to the mounting surface by L-shaped angle steel. In actual operation, it is difficult to align the mounting holes on the angle steel with the studs on the mounting surface. After the studs are inserted into the mounting holes, there are problems with small operating space and high difficulty when tightening the locking nut, which reduces the installation efficiency of the housing. Utility Model Content

[0005] To overcome the problem of complex installation and fixing operations of the housing in the prior art, this application provides a high-precision high-voltage circuit breaker housing.

[0006] This application adopts the following technical solution: a high-precision high-voltage circuit breaker housing, including a body, a pair of fixing strips at the bottom of the body, the fixing strips being flat and extending to the outside of the body, a support strip below the fixing strips being L-shaped and connected to the mounting surface; a pair of limiting posts at the top of the horizontal end of the support strip, a sliding hole on the fixing strip, the length of the sliding hole being greater than the distance between the pair of limiting posts; a vertical plate at the top of the fixing strip and outside the sliding hole, a lead screw passing through the pair of vertical plates, the lead screw passing through the limiting plate and the limiting post, the lead screw being threadedly connected to the vertical plate, and the lead screw and the limiting post being in sliding fit.

[0007] Optionally, the vertical end of the support bar abuts against the bottom of the fixing bar, and the horizontal end of the support bar is detachably disposed on the mounting surface.

[0008] Optionally, the upright plate is provided with a threaded hole, and the top of the limiting post is provided with a through hole. The threaded hole and the through hole are coaxially arranged. The lead screw can be adapted to be screwed into the threaded hole, and the lead screw passes through the through hole and can slide within the through hole.

[0009] Optionally, the lead screw is screwed with two first nuts and two second nuts. One first nut presses against the outside of one of the vertical plates, and the other first nut presses against the outside of another vertical plate. The two second nuts are located between two limiting posts. One second nut presses against the outside of one of the limiting posts, and the other second nut presses against the outside of the other limiting post.

[0010] Optionally, the bottom of the fixing strip is provided with a guide opening, which communicates with the sliding hole, and the width of the guide opening is greater than the width of the sliding hole.

[0011] Compared with the prior art, this application achieves reliable fixation of the main body by using the cooperation between the lead screw and the upright plate and the limiting effect of the second nut on the limiting post. The limiting post, the upright plate and the second nut are all set above the fixing bar, which provides a large operating space and maximizes the installation efficiency of the main body. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this application;

[0013] Figure 2 This is a reference diagram of the explosion state of this application;

[0014] Figure 3 This is a reference diagram showing the assembly state of the fixing strip and the support strip;

[0015] In the diagram: 1. Body; 2. Fixing strip; 21. Sliding hole; 22. Vertical plate; 220. Threaded hole; 23. Guide port; 3. Support strip; 31. Limiting post; 310. Through hole; 4. Lead screw; 41. First nut; 42. Second nut. Detailed Implementation

[0016] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0017] like Figure 1-3As shown, the high-precision high-voltage circuit breaker housing includes a body 1. A pair of fixing strips 2 are provided at the bottom of the body 1. The fixing strips 2 are flat and extend to the outside of the body 1. A support strip 3 is provided below the fixing strips 2. The support strip 3 is L-shaped and connected to the mounting surface. A pair of limiting posts 31 are provided at the top of the horizontal end of the support strip 3. A sliding hole 21 is provided on the fixing strip 2, the length of which is greater than the distance between the pair of limiting posts 31. A vertical plate 22 is provided at the top of the fixing strip 2 and outside the sliding hole 21. A lead screw 4 passes between the pair of vertical plates 22, passing through the limiting plate and the limiting post 31. The lead screw 4 is threadedly connected to the vertical plate 22, and the lead screw 4 and the limiting post 31 are in sliding engagement.

[0018] When hoisting the main body 1, the support bar 3 is first fixed to the mounting surface by welding or bolting. Then, the main body 1 is hoisted above the support bar 3 and slowly lowered. Since the overall size of the sliding hole 21 is relatively large, the difficulty of fitting the limiting post 31 into the sliding hole 21 is reduced. After the fixing bar 2 and the support bar 3 abut, the screw rod 4 is passed through one vertical plate 22, one limiting post 31, another limiting post 31 and another vertical plate 22 in sequence. Since the screw rod 4 and the vertical plate 22 are connected by threads, the relative position between the screw rod 4 and the two vertical plates 22 can be adjusted to achieve quick positioning and locking between the fixing bar 2 and the support bar 3. This avoids fixing operations in a narrow space, effectively reduces the difficulty of operation and improves the fixing efficiency of the main body 1.

[0019] The vertical end of the support bar 3 abuts against the bottom of the fixing bar 2, and the horizontal end of the support bar 3 is detachably mounted on the mounting surface. In this way, when the lead screw 4 is rotated to the appropriate position, the main body 1 can be reliably fixed.

[0020] The upright plate 22 is provided with a threaded hole 220, and the top of the limiting post 31 is provided with a through hole 310. The threaded hole 220 and the through hole 310 are coaxially arranged. The lead screw 4 can be adapted to be screwed into the threaded hole 220. The lead screw 4 passes through the through hole 310 and can slide within the through hole 310.

[0021] The threaded hole 220 is connected to the lead screw 4 by a thread, which ensures a reliable connection between the lead screw 4 and the vertical plate 22, thereby limiting the position of the lead screw 4. Furthermore, by limiting the position of the lead screw 4, the movement of the body 1 is restricted, ensuring that the body 1 is in a reliably fixed state.

[0022] Two first nuts 41 and two second nuts 42 are screwed onto the lead screw 4. One first nut 41 presses against the outside of one of the vertical plates 22, and the other first nut 41 presses against the outside of another vertical plate 22. The two second nuts 42 are located between two limiting posts 31. One second nut 42 presses against the outside of one limiting post 31, and the other second nut 42 presses against the outside of the other limiting post 31.

[0023] As the lead screw 4 passes through the vertical plate 22 and the limiting post 31 in sequence, two second nuts 42 can be screwed between the two limiting posts 31. After the position of the lead screw 4 is adjusted, the two second nuts 42 are rotated so that the two second nuts 42 limit the position of the two limiting posts 31 respectively. This ensures that the limiting posts 31 and the support bar 3 cannot move horizontally. After the lead screw 4 and the second nuts 42 have been rotated, the first nuts 41 are screwed in from both ends of the lead screw 4 so that the first nuts 41 abut against the outside of the vertical plate 22, thereby reliably fixing the position of the lead screw 4. This maximizes the fixing effect of the body 1 and improves the installation accuracy of the body 1.

[0024] The bottom of the fixing strip 2 is provided with a guide port 23, which is connected to the sliding hole 21. The width of the guide port 23 is greater than the width of the sliding hole 21. In this way, during the hoisting process, the limiting post 31 can be inserted into the sliding hole 21 more quickly under the guidance of the guide port 23, thereby improving the installation efficiency of the body 1.

[0025] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A high-precision high-voltage circuit breaker housing, comprising a body (1), characterized in that, The bottom of the body (1) is provided with a pair of fixing strips (2), the fixing strips (2) are flat and extend to the outside of the body (1), and a support strip (3) is provided below the fixing strips (2), the support strip (3) is L-shaped and the support strip (3) is connected to the mounting surface; The support bar (3) has a pair of limiting posts (31) at the top of its horizontal end, and the fixing bar (2) has a sliding hole (21) with a length greater than the distance between the pair of limiting posts (31). A vertical plate (22) is provided at the top of the fixing strip (2) and on the outside of the sliding hole (21). A lead screw (4) is passed between a pair of vertical plates (22). The lead screw (4) passes through the limiting plate and the limiting post (31). The lead screw (4) is threaded to the vertical plate (22). The lead screw (4) and the limiting post (31) are in sliding fit.

2. The high-precision high-voltage circuit breaker housing according to claim 1, characterized in that, The vertical end of the support bar (3) abuts against the bottom of the fixing bar (2), and the horizontal end of the support bar (3) is detachably mounted on the mounting surface.

3. The high-precision high-voltage circuit breaker housing according to claim 1, characterized in that, The upright plate (22) is provided with a threaded hole (220), and the top of the limiting post (31) is provided with a through hole (310). The threaded hole (220) and the through hole (310) are coaxially arranged. The lead screw (4) can be adapted to be screwed into the threaded hole (220). The lead screw (4) passes through the through hole (310) and can slide in the through hole (310).

4. The high-precision high-voltage circuit breaker housing according to claim 3, characterized in that, The lead screw (4) is screwed with two first nuts (41) and two second nuts (42). One first nut (41) presses against the outside of one of the vertical plates (22), and the other first nut (41) presses against the outside of another vertical plate (22). The two second nuts (42) are located between two limiting posts (31). One second nut (42) presses against the outside of one of the limiting posts (31), and the other second nut (42) presses against the outside of the other limiting post (31).

5. The high-precision high-voltage circuit breaker housing according to claim 3, characterized in that, The bottom of the fixing strip (2) is provided with a guide port (23), which is connected to the sliding hole (21). The width of the guide port (23) is greater than the width of the sliding hole (21).

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