Fixing device of pole-mounted vacuum circuit breaker

Abstract

The utility model discloses a pole-mounted vacuum circuit breaker fixing device, and belongs to the technical field of vacuum circuit breaker installation, the pole-mounted vacuum circuit breaker fixing device comprises distribution line poles, a fixing block is arranged between the two distribution line poles, the top of the fixing block is fixedly provided with a vacuum circuit breaker main body, and the fixing block is composed of a bearing plate and two semicircular rings I; the fixing block is arranged to bear the vacuum circuit breaker body, the first semicircular ring and the second semicircular ring are fixedly locked to the outer wall of the power distribution line column through cooperation of the first connecting block, the second connecting block, the clamping block and the fixing bolt, rapid installation and fixation are achieved through the hoop type design, the screw rod is driven to rotate by rotating the screw cover, and the vacuum circuit breaker body is fixed through the screw rod. And by means of threaded fit between the lead screw and the fixing rod, the lead screw can drive the fixing rod to be inserted into the fixing hole in a sliding mode when rotating, mechanical locking is achieved, the stability of the fixing structure is further enhanced, and equipment is prevented from shaking and loosening due to strong wind.

Description

Technical Field

[0001] This application relates to the field of vacuum circuit breaker installation technology, and more particularly to a fixing device for a pole-mounted vacuum circuit breaker. Background Technology

[0002] A pole-mounted vacuum circuit breaker is a high-voltage switchgear installed on a power distribution line pole for controlling and protecting the power grid. It utilizes a vacuum interrupter as the breaking medium and is widely used in medium-voltage distribution networks due to its excellent insulation performance and arc-extinguishing characteristics.

[0003] Existing pole-mounted vacuum circuit breakers are generally installed on outdoor power line poles, and therefore are often subject to strong winds. The current pole-mounted vacuum circuit breakers generally adopt a simple welded structure, which is prone to shaking and loosening under strong winds, resulting in poor stability. Therefore, an improvement has been made to the fixing device of a pole-mounted vacuum circuit breaker. Utility Model Content

[0004] In view of the shortcomings of the prior art, this application provides a fixing device for a pole-mounted vacuum circuit breaker, which overcomes the shortcomings of the prior art and aims to solve the problem that the current pole-mounted vacuum circuit breakers generally adopt a simple welded structure, which is prone to shaking and loosening under strong winds, resulting in poor stability.

[0005] To achieve the above objectives, this application provides the following technical solution: a fixing device for a pole-mounted vacuum circuit breaker, comprising a power distribution line pole, a fixing block disposed between two power distribution line poles, a vacuum circuit breaker body fixedly mounted on the top of the fixing block, the fixing block consisting of a bearing plate and two semicircular rings, a semicircular ring 2 disposed on one side of the semicircular ring 1, a connecting block 1 and a connecting block 2 respectively fixedly connected to the adjacent sides of the semicircular ring 1 and the semicircular ring 2, the connecting block 1 and the connecting block 2 being provided with snap-fit ​​blocks, and the three being fixedly connected together by fixing bolts, the ring formed by the semicircular ring 1 and the semicircular ring 2 being sleeved on the outer wall of the power distribution line pole, the outer wall of the power distribution line pole having a fixing hole, a positioning cylinder fixedly mounted on the outer wall of the semicircular ring 2 on one side of the fixing hole, a lead screw disposed inside the positioning cylinder, a cap for driving the lead screw to rotate disposed on the outer side of the positioning cylinder, a fixing rod threadedly sleeved on the outer surface of the lead screw inside the positioning cylinder, and the fixing rod being slidably inserted into the inside of the fixing hole.

[0006] By adopting the above technical solution, a fixing block is set to support the main body of the vacuum circuit breaker. The semicircular rings one and two are fixed and locked to the outer wall of the power distribution line post through the cooperation between connecting block one, connecting block two, snap-fit ​​block and fixing bolt. The clamp-type design realizes quick installation and fixing. The rotating cap drives the screw rod to rotate, and the threaded cooperation between the screw rod and the fixing rod allows the screw rod to drive the fixing rod to slide into the fixing hole when rotating, realizing mechanical locking. This further enhances the stability of the fixing structure and prevents the equipment from shaking or loosening due to strong winds.

[0007] As a preferred technical solution of this application, the inner wall of the positioning cylinder is symmetrically provided with sliding grooves, and the two outer walls of the positioning cylinder are symmetrically connected with sliding blocks, which slide inside the sliding grooves.

[0008] By adopting the above technical solution, the linear motion trajectory of the fixed rod inside the positioning cylinder is constrained, preventing the fixed rod from deflecting when the lead screw rotates, ensuring that the fixed rod only moves along the axial direction, improving positioning accuracy and mechanical stability, and achieving precise insertion between the fixed rod and the fixing hole.

[0009] As a preferred technical solution of this application, a bearing is provided on the outer surface of the lead screw near the screw cap. The bearing is fixedly installed inside the positioning cylinder, and the lead screw is rotatably connected to the positioning cylinder through the bearing.

[0010] By adopting the above technical solution and setting bearings, the lead screw can rotate flexibly inside the positioning cylinder under the driving action of the cap.

[0011] As a preferred embodiment of this application, the outer diameter of the fixing rod is the same as the inner diameter of the fixing hole.

[0012] By adopting the above technical solution, the necessary conditions are provided for the precise insertion of the fixing rod and the fixing hole, ensuring that the fixing rod will not wobble after being inserted into the fixing hole.

[0013] As a preferred technical solution of this application, the inner walls of both the first and second semicircular rings are fixedly connected with anti-slip pads, the outer surface of the anti-slip pads abuts against the outer wall of the power distribution line post, and the anti-slip pads are made of rubber material.

[0014] By adopting the above technical solution, the friction of the contact surface is increased by setting anti-slip mats.

[0015] As a preferred technical solution of this application, the outer walls of both the first connecting block and the second connecting block are provided with limiting grooves, and the inner wall of the snap-fit ​​block is provided with protrusions that are adapted to the limiting grooves, and the protrusions slide inside the limiting grooves.

[0016] By adopting the above technical solution, the locking block is slidably locked onto connecting block one and connecting block two through the cooperation between the protrusion and the limiting groove, and the locking block locks connecting block one and connecting block two to ensure that connecting block one and connecting block two can be accurately connected together.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In this utility model, a fixing block is set to support the main body of the vacuum circuit breaker. The semicircular rings one and two are fixed and locked to the outer wall of the power distribution line post through the cooperation between connecting block one, connecting block two, snap-fit ​​block and fixing bolt. The clamp-type design realizes quick installation and fixing. The rotating cap drives the screw rod to rotate, and the threaded cooperation between the screw rod and the fixing rod allows the screw rod to drive the fixing rod to slide into the fixing hole when rotating, realizing mechanical locking. This further enhances the stability of the fixing structure and prevents the equipment from shaking or loosening due to strong winds.

[0019] With reference to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating the ways in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereto. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of this application;

[0022] Figure 2 This is a partial structural breakdown diagram of this application;

[0023] Figure 3 For the purposes of this application Figure 2 Enlarged schematic diagram of the structure at point A;

[0024] Figure 4 This is a partial structural cross-sectional view of this application;

[0025] Figure 5 This is a schematic diagram of the internal structure of the positioning cylinder of this application.

[0026] In the diagram: 1. Power line post; 2. Fixing block; 201. Bearing plate; 202. Semicircular ring one; 3. Semicircular ring two; 4. Vacuum circuit breaker body; 5. Connecting block one; 6. Connecting block two; 7. Positioning cylinder; 8. Bearing; 9. Lead screw; 10. Screw cap; 11. Fixing rod; 12. Sliding groove; 13. Sliding block; 14. Limiting groove; 15. Snap-fit ​​block; 16. Fixing bolt; 17. Anti-slip pad; 18. Fixing hole. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] like Figure 1 - Figure 5 As shown, this embodiment provides a fixing device for a pole-mounted vacuum circuit breaker, including a power distribution line post 1. A fixing block 2 is provided between two power distribution line posts 1. A vacuum circuit breaker body 4 is fixedly installed on the top of the fixing block 2. The fixing block 2 consists of a bearing plate 201 and two semi-circular rings 202. A semi-circular ring 3 is provided on one side of the semi-circular ring 202. A connecting block 5 and a connecting block 6 are fixedly connected to the adjacent sides of the semi-circular rings 202 and 202, respectively. A snap-fit ​​block 15 is provided on the connecting block 5 and the connecting block 6. The three are fixedly connected together by fixing bolts 16. The ring formed by the semi-circular rings 202 and 202 fits onto the outer wall of the power distribution line post 1. A fixing hole 18 is opened on the outer wall of the power distribution line post 1. A positioning cylinder is fixedly installed on the outer wall of the semi-circular ring 3 on the side of the fixing hole 18. 7. The positioning cylinder 7 has a lead screw 9 inside and a cap 10 for driving the lead screw 9 to rotate on the outside of the positioning cylinder 7. The outer surface of the lead screw 9 is threaded with a fixing rod 11 inside the positioning cylinder 7. The fixing rod 11 is slidably inserted into the fixing hole 18. In use, the semi-circular ring 202 and the semi-circular ring 3 are fixed and locked on the outer wall of the power distribution line post 1 through the cooperation between the connecting block 1 5, the connecting block 2 6, the snap-fit ​​block 15 and the fixing bolt 16. The clamp-type design enables quick installation and fixing. The lead screw 9 is driven to rotate by rotating the cap 10. The threaded cooperation between the lead screw 9 and the fixing rod 11 enables the fixing rod 11 to slide into the fixing hole 18 when the lead screw 9 rotates, thus achieving mechanical locking. Then the vacuum circuit breaker body 4 is fixedly installed on the bearing plate 201.

[0029] In this embodiment, as Figure 5As shown, the inner wall of the positioning cylinder 7 is symmetrically provided with sliding grooves 12, and the outer walls on both sides of the positioning cylinder 7 are symmetrically connected with sliding blocks 13. The sliding blocks 13 slide inside the sliding grooves 12. During use, they constrain the linear motion trajectory of the fixing rod 11 inside the positioning cylinder 7, preventing the fixing rod 11 from deflecting when the lead screw 9 rotates, ensuring that the fixing rod 11 only moves along the axial direction, improving positioning accuracy and mechanical stability, and realizing the precise insertion of the fixing rod 11 and the fixing hole 18.

[0030] In this embodiment, as Figure 5 As shown, a bearing 8 is provided on the outer surface of the lead screw 9 near the screw cap 10. The bearing 8 is fixedly installed inside the positioning cylinder 7, and the lead screw 9 is rotatably connected to the positioning cylinder 7 through the bearing 8. In use, the bearing 8 allows the lead screw 9 to rotate flexibly inside the positioning cylinder 7 under the driving action of the screw cap 10.

[0031] In this embodiment, as Figure 4 As shown, the outer diameter of the fixing rod 11 is the same as the inner diameter of the fixing hole 18. During use, this provides the necessary conditions for the precise insertion of the fixing rod 11 and the fixing hole 18, ensuring that the fixing rod 11 will not wobble after being inserted into the fixing hole 18.

[0032] In this embodiment, as Figure 2 As shown, anti-slip pads 17 are fixedly connected to the inner walls of both semi-circular ring 202 and semi-circular ring 3. The outer surface of the anti-slip pads 17 abuts against the outer wall of the power distribution line post 1. The anti-slip pads 17 are made of rubber material. In use, the friction of the contact surface is increased by setting the anti-slip pads 17.

[0033] In this embodiment, as Figure 3 As shown, both connecting block 5 and connecting block 6 have limiting grooves 14 on their outer walls. The inner wall of the snap-fit ​​block 15 is provided with a protrusion that matches the limiting groove 14. The protrusion slides inside the limiting groove 14. In use, the snap-fit ​​block 15 is slidably snapped onto connecting block 5 and connecting block 6 by the cooperation between the protrusion and the limiting groove 14, and the snap-fit ​​block 15 locks connecting block 5 and connecting block 6 to ensure that connecting block 5 and connecting block 6 can be accurately connected together.

[0034] The working principle of this utility model is as follows: When using the fixing device for a pole-mounted vacuum circuit breaker according to this application, a fixing hole 18 is first opened at a designated position on the power distribution line pole 1. Then, the semi-circular ring 202 and the semi-circular ring 3 are fixedly locked to the outer wall of the power distribution line pole 1 through the cooperation between the connecting block 1 5, the connecting block 2 6, the snap-fit ​​block 15 and the fixing bolt 16. The screw rod 9 is driven to rotate by rotating the cap 10. The threaded cooperation between the screw rod 9 and the fixing rod 11 allows the screw rod 9 to drive the fixing rod 11 to slide into the fixing hole 18 when rotating, thus achieving mechanical locking. Then, the main body 4 of the vacuum circuit breaker is fixedly installed on the bearing plate 201 to complete the installation work.

[0035] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A mounting device for a pole-mounted vacuum circuit breaker, comprising a power line pole (1), characterized in that, A fixing block (2) is provided between the two power distribution line posts (1). A vacuum circuit breaker body (4) is fixedly installed on the top of the fixing block (2). The fixing block (2) consists of a bearing plate (201) and two semi-circular rings (202). A semi-circular ring (3) is provided on one side of the semi-circular ring (202). A connecting block (5) and a connecting block (6) are fixedly connected to the side of the semi-circular ring (202) and the semi-circular ring (3) respectively. A snap-fit ​​block (15) is provided on the connecting block (5) and the connecting block (6). The three are fixedly connected together by fixing bolts (16). The ring formed by the two semicircular rings (202 and 3) is fitted onto the outer wall of the power distribution line post (1). The outer wall of the power distribution line post (1) is provided with a fixing hole (18). The outer wall of the two semicircular rings (3) is fixedly installed on one side of the fixing hole (18). The positioning cylinder (7) is provided with a lead screw (9) inside the positioning cylinder (7). The outer side of the positioning cylinder (7) is provided with a screw cap (10) that drives the lead screw (9) to rotate. The outer surface of the lead screw (9) is threaded with a fixing rod (11) inside the positioning cylinder (7). The fixing rod (11) is slidably inserted into the fixing hole (18).

2. The fixing device for a pole-mounted vacuum circuit breaker according to claim 1, characterized in that, The inner wall of the positioning cylinder (7) is symmetrically provided with sliding grooves (12), and the outer walls on both sides of the positioning cylinder (7) are symmetrically connected with sliding blocks (13), which slide inside the sliding grooves (12).

3. The fixing device for a pole-mounted vacuum circuit breaker according to claim 1, characterized in that, A bearing (8) is provided on the outer surface of the lead screw (9) near the screw cap (10). The bearing (8) is fixedly installed inside the positioning cylinder (7), and the lead screw (9) is rotatably connected to the positioning cylinder (7) through the bearing (8).

4. The fixing device for a pole-mounted vacuum circuit breaker according to claim 1, characterized in that, The outer diameter of the fixing rod (11) is the same as the inner diameter of the fixing hole (18).

5. The fixing device for a pole-mounted vacuum circuit breaker according to claim 1, characterized in that, The inner walls of the first semicircular ring (202) and the second semicircular ring (3) are fixedly connected with anti-slip pads (17). The outer surface of the anti-slip pads (17) abuts against the outer wall of the power distribution line post (1). The anti-slip pads (17) are made of rubber material.

6. The fixing device for a pole-mounted vacuum circuit breaker according to claim 1, characterized in that, The outer walls of both connecting block 1 (5) and connecting block 2 (6) are provided with limiting grooves (14), and the inner wall of the snap-fit ​​block (15) is provided with protrusions that are adapted to the limiting grooves (14), and the protrusions slide inside the limiting grooves (14).

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