A high-gloss vacuum switch static conductive rod fixing device

Abstract

This utility model provides a high-gloss vacuum switch static conductive rod fixing device, relating to the field of power distribution system technology. The inner wall of the flange is threaded with a screw rod, the outer surface of the screw rod is threaded with an arc cap, the outer surface of the screw rod is threaded with a second bolt, the outer surface of the second bolt is fixedly connected with a limiter, the outer surface of the screw rod is bolted with a second washer, and the outer surface of the screw rod is engaged with a first washer. This utility model addresses three core aspects: enhancing fixing rigidity, optimizing anti-loosening measures, and improving force balance. It also considers electrical performance such as conductivity, insulation, and ease of installation and maintenance, transforming single-point force into multi-point uniform force, reducing local stress concentration. It is particularly suitable for high-current switches, reducing the impact of electrodynamic shocks. The outer side is fixed to the flange with bolts, forming a dual constraint of axial limiting and radial anti-sway.

Description

Technical Field

[0001] This utility model relates to the field of power distribution system technology, and in particular to a high-gloss vacuum switch static conductive rod fixing device. Background Technology

[0002] Vacuum switches, also known as vacuum relays, are electrical switching devices that use vacuum as an arc-extinguishing and insulating medium. They are mainly used in power systems to connect and disconnect circuits and to protect circuits, and the static conductive rod is one of its most important components.

[0003] The existing static conductive rods have insufficient single bolt fixing strength. When subjected to long-term electrodynamic short circuits, the strength can reach several thousand Newtons, and vibrations such as the mechanical resonance impact of switch cabinet operation can easily lead to bolt loosening or deformation of connecting parts. Excessive clearance between the fixing device and the static conductive rod, or insufficient rigidity in the connection between the insulating support and the conductive rod, will exacerbate the loosening trend. Summary of the Invention

[0004] The purpose of this invention is to solve the problem of easy loosening of static conductive rods caused by machine vibration and single fixing in the existing technology, and to provide a high-gloss vacuum switch static conductive rod fixing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-gloss vacuum switch static conductive rod fixing device, wherein a flange is engaged with the inner wall of the vacuum switch body, a flange ring is fixedly connected to the inner wall of the flange, a screw is threadedly connected to the inner wall of the flange ring, an arc cap is threadedly connected to the outer surface of the screw, a second bolt is threadedly connected to the outer surface of the screw, a limit member is fixedly connected to the outer surface of the second bolt, a second washer is engaged with the outer surface of the screw, and a first washer is engaged with the outer surface of the screw.

[0006] In a preferred embodiment, a first bolt is threaded onto the outer surface of the screw, a rod cap is threaded onto the outer surface of the screw, an annular groove is formed on the outer surface of the flange, and a limit hole is formed on the outer surface of the flange.

[0007] In a preferred embodiment, the inner wall of the flange is threaded to the outer surface of the screw.

[0008] In a preferred embodiment, the inner wall of the arc cap is threaded to the outer surface of the screw.

[0009] In a preferred embodiment, the flange is threadedly connected to the screw via a flange ring, and the outer surface of the flange ring is fixedly connected to the inner wall of the flange.

[0010] In a preferred embodiment, the inner wall of the flange is engaged with the outer surface of the limiting member, and the limiting hole is formed on the outer surface of the flange.

[0011] In a preferred embodiment, the limiting member is threadedly connected to the screw rod via a second bolt, and the limiting member is fixedly connected to the second bolt.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] This utility model focuses on three core aspects: enhancing the rigidity of the fixation, optimizing the anti-loosening measures, and improving the force balance. At the same time, it takes into account electrical performance such as conductivity, insulation, and ease of installation and maintenance. It transforms single-point force into multi-point uniform force, reduces local stress concentration, and is especially suitable for high-current switches to reduce the impact of electrodynamic impact. The outer side is fixed to the flange by bolts, forming a dual constraint of axial limit and radial anti-sway. Attached Figure Description

[0014] Figure 1 This utility model provides a structural schematic diagram of a high-gloss vacuum switch static conductive rod fixing device.

[0015] Figure 2 A schematic diagram of the conductive rod structure of a high-gloss vacuum switch static conductive rod fixing device provided by this utility model.

[0016] Figure 3 An exploded view of the conductive rod of a high-gloss vacuum switch static conductive rod fixing device provided by this utility model.

[0017] Figure 4 An exploded view of the flange structure of a high-gloss vacuum switch static conductive rod fixing device provided by this utility model.

[0018] Legend:

[0019] 1. Vacuum switch body; 2. Flange; 3. First bolt; 4. Rod cap; 5. Screw; 6. First washer; 7. Flange ring; 8. Second washer; 9. Second bolt; 10. Arc cap; 11. Limiting component; 12. Limiting hole; 13. Annular groove. Detailed Implementation

[0020] 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. Example

[0021] like Figures 1-4 As shown, this utility model provides a technical solution: a high-gloss vacuum switch static conductive rod fixing device, wherein a flange 2 is snapped onto the inner wall of the vacuum switch body 1, a flange ring 7 is fixedly connected to the inner wall of the flange 2, a screw 5 is threaded onto the inner wall of the flange ring 7, an arc cap 10 is threaded onto the outer surface of the screw 5, a second bolt 9 is threaded onto the outer surface of the screw 5, a limit member 11 is fixedly connected to the outer surface of the second bolt 9, a second washer 8 is snapped onto the outer surface of the screw 5, and a first washer 6 is snapped onto the outer surface of the screw 5.

[0022] In this embodiment, the flange 2 and flange ring 7 are designed to facilitate the fixing of the flange ring 7. The structural adaptation between the two forms a fixed structure. The inner wall of the flange 2 precisely engages with the annular groove 13 on the edge of the flange ring 7, and the pre-set positioning holes achieve radial limiting, significantly reducing the risk of flange ring 7 shifting during installation. This makes the fixing operation more efficient and with higher positional accuracy. The screw 5 facilitates the installation of various components, and the threaded design makes the installation of each part more secure. The threaded design also prevents the parts from loosening under vibration or external impact. The arc cap 10 is designed to better protect existing components. The design of the second bolt 9 facilitates the fixing of the flange 2. The design of the limiting component 11 facilitates the prevention of movement of other parts during threaded connection. Its protruding part can be embedded in the limiting hole 12 on the outer surface of the flange 2, forming a double constraint of axial and radial direction, which effectively prevents other parts from moving due to thread clearance. The design of the first washer 6 and the second washer 8 ensures that the threaded connection of the first bolt 3 and the second bolt 9 to the screw 5 is more secure and has better sealing performance. The rubber layer can fill the small gaps in the threaded connection, which significantly improves the overall structure's anti-leakage capability while enhancing the tightness. Example

[0023] like Figures 1-4 As shown, the outer surface of the screw 5 is threaded with a first bolt 3, the outer surface of the screw 5 is threaded with a rod cap 4, the outer surface of the flange ring 7 is provided with an annular groove 13, and the outer surface of the flange 2 is provided with a limit hole 12.

[0024] In this embodiment, the design of the first bolt 3 makes the whole structure more secure, and the design of the rod cap 4 facilitates the adaptation of the existing improved parts and the original structure. This eliminates the need for additional adapters and ensures the accuracy of the position after connection, preventing the overall equipment from being scrapped due to contact wear. This design avoids the overall equipment scrapping caused by contact wear and significantly extends the overall service life of the vacuum switch. The design of the limiting hole 12 facilitates the connection with the limiting member 11. Its protruding part can be embedded in the limiting hole 12 on the outer surface of the flange 2 to form a rigid constraint. This design not only prevents the limiting member 11 from rotating or displacing itself during the threaded connection, but also allows the limiting member 11 to cooperate with other parts.

[0025] Working principle:

[0026] like Figures 1-4 As shown, the flange 2 and flange ring 7 are designed to facilitate the fixing of the flange ring 7. The two are structurally compatible to form a fixed structure. The inner wall of the flange 2 precisely engages with the annular groove 13 on the edge of the flange ring 7. The pre-set positioning hole achieves radial limiting, which greatly reduces the risk of displacement of the flange ring 7 during installation, making the fixing operation more efficient and with higher positional accuracy. The screw 5 is designed to facilitate the installation of various components, and the thread design makes the installation of each component more stable. The thread design makes the components less likely to loosen when subjected to vibration or external impact. The arc cap 10 is designed to provide greater protection for existing components. The second bolt 9 is designed to facilitate the fixing of the flange 2. The limiting part 11 is designed to prevent the movement of other components during threaded connection. Its protruding part can be embedded into the limiting hole 12 on the outer surface of the flange 2. Internally, by designing the first washer 6 and the second washer 8, the threaded connection of the first bolt 3 and the second bolt 9 to the screw 5 is made more secure, significantly improving the overall structure's leak-proof capability. First, the edge protrusion of the flange ring 7 is aligned with the annular groove of the flange 2 and embedded. The structural adaptation of the two completes the initial positioning. At this time, the limiting hole 12 on the outer surface of the flange 2 and the corresponding position of the flange ring 7 form a mating base. The screw 5 is inserted into the reserved hole of each component. Its full thread structure provides a unified benchmark for subsequent connections. Each component can be sequentially fitted into the screw 5. The rod cap 4 plays a compatibility role at this time. Its inner positioning pin is inserted into the original structure pin hole to complete the positioning. The anti-slip texture enhances the friction with the original structure. This design avoids the overall scrapping of the equipment due to contact wear and greatly extends the overall service life of the vacuum switch.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high-gloss vacuum switch static conductive rod fixing device, comprising a vacuum switch body (1), characterized in that: The inner wall of the vacuum switch body (1) is fitted with a flange (2), the inner wall of the flange (2) is fixedly connected with a flange ring (7), the inner wall of the flange ring (7) is threaded with a screw (5), the outer surface of the screw (5) is threaded with an arc cap (10), the outer surface of the screw (5) is threaded with a second bolt (9), the outer surface of the second bolt (9) is fixedly connected with a limiter (11), the outer surface of the screw (5) is fitted with a second washer (8), and the outer surface of the screw (5) is fitted with a first washer (6).

2. The high-gloss vacuum switch static conductive rod fixing device according to claim 1, characterized in that: The outer surface of the screw (5) is threaded with a first bolt (3), the outer surface of the screw (5) is threaded with a rod cap (4), the outer surface of the flange (7) is provided with an annular groove (13), and the outer surface of the flange (2) is provided with a limit hole (12).

3. The high-gloss vacuum switch static conductive rod fixing device according to claim 1, characterized in that: The inner wall of the flange (7) is threaded to the outer surface of the screw (5).

4. The high-gloss vacuum switch static conductive rod fixing device according to claim 1, characterized in that: The inner wall of the arc cap (10) is threaded to the outer surface of the screw (5).

5. The high-gloss vacuum switch static conductive rod fixing device according to claim 1, characterized in that: The flange (2) is threaded to the screw (5) via a flange ring (7), and the outer surface of the flange ring (7) is fixedly connected to the inner wall of the flange (2).

6. The high-gloss vacuum switch static conductive rod fixing device according to claim 2, characterized in that: The inner wall of the flange (2) is engaged with the outer surface of the limiting member (11), and the limiting hole (12) is opened on the outer surface of the flange (2).

7. The high-gloss vacuum switch static conductive rod fixing device according to claim 1, characterized in that: The limiting member (11) is threadedly connected to the screw (5) by the second bolt (9), and the limiting member (11) is fixedly connected to the second bolt (9).

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