A disconnector circuit cover
By designing a circuit breaker cover for disconnecting switches and utilizing a combination structure of threaded rods and movable covers, the problem of inconsistent shielding specifications during live-line work was solved, achieving the effect of one circuit breaker cover adapting to different switch specifications and improving convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU HONGYE POWER CO LTD
- Filing Date
- 2025-03-14
- Publication Date
- 2026-07-14
AI Technical Summary
In the existing technology, when working with electricity, it is necessary to carry multiple shields of different specifications to accommodate switches of different specifications, which leads to inconvenience.
Design a circuit breaker cover for disconnecting switches, including a circuit breaker cover and a movable cover. Through the combination of a threaded rod, a movable stop block, a sliding opening and a guide post hole, the movable cover can slide up and down and be fixed on the circuit breaker cover, adapting to switches of different specifications.
This invention enables a single circuit breaker cover to accommodate switches of different specifications, improving portability and ease of use, and reducing the need to carry multiple coveres.
Smart Images

Figure CN224501791U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of live-line working, and in particular to a circuit breaker cover for a disconnecting switch. Background Technology
[0002] Live-line working refers to the method of performing maintenance and testing on high-voltage electrical equipment without interrupting power. Electrical equipment requires frequent testing, inspection, and maintenance during long-term operation. Live-line working is an effective measure to avoid power outages during maintenance and ensure normal power supply. Live-line working can be divided into several aspects, including live-line testing, live-line inspection, and live-line maintenance. The objects of live-line working include electrical equipment in power plants and substations, overhead transmission lines, distribution lines, and distribution equipment.
[0003] Currently, when performing live-line maintenance near switches located at both ends of power lines, workers need to cover the switches with shields to insulate them and prevent accidental contact. However, the sizes and specifications of switches are not the same, and workers need to carry multiple shields of different specifications to accommodate different switches. Therefore, a circuit breaker cover for isolating switches is designed to accommodate switches of different specifications. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a circuit breaker cover for a disconnecting switch.
[0005] The objective of this utility model is achieved through the following technical solution:
[0006] A circuit breaker cover for a disconnecting switch includes: a circuit breaker cover and a movable cover; a threaded rod is provided at the bottom right side of the circuit breaker cover, and a movable stop is threadedly connected to the rod body; a handle is provided at the center of the top of the circuit breaker cover; several first guide post holes are provided on the right side of the front and back of the circuit breaker cover; a sliding opening is provided on the right side of the movable cover, and the movable cover is slidably connected to the bottom of the circuit breaker cover; the right side and bottom plates of the circuit breaker cover are open-type designs, and the right side, top, and bottom plates of the movable cover are also open-type designs.
[0007] In one embodiment, the front of the circuit breaker and the movable cover is rectangular, and the top plate of the circuit breaker near the opening side is designed to bulge outward.
[0008] In one embodiment, there are three first guide post holes, which are opened obliquely from top to bottom on the side of the front and back of the circuit breaker near the opening, and the right side of the bottom of the front and back of the movable cover is provided with second guide post holes.
[0009] In one embodiment, the length of the top view of the movable cover is the same as the length of the top view of the circuit breaker cover, and the width of the top view of the movable cover is greater than the width of the top view of the circuit breaker cover.
[0010] In one embodiment, an auxiliary sliding groove is provided at the center of the front and back of the circuit breaker cover, and a slider is provided at the top of the front and back of the movable cover. The slider corresponds to and is slidably connected with the auxiliary sliding groove.
[0011] In one embodiment, a spring rope is provided on the plate on the right side of the movable cover, and a guide post is provided at one end of the spring rope. The diameter of the front of the first guide post hole and the second guide post hole are the same, and the diameter of the front of the first guide post hole is adapted to the guide post.
[0012] In one embodiment, both the circuit breaker cover and the movable cover have heat insulation layers in their inner walls, and both the circuit breaker cover and the movable cover are made of acrylic.
[0013] Compared with the prior art, the present invention has at least the following advantages:
[0014] This utility model discloses a circuit breaker cover for a disconnecting switch. Through the threaded rod on the circuit breaker cover and the sliding opening on the movable cover, as well as the shape and size design of the circuit breaker cover and the movable cover, the movable cover can slide up and down on the circuit breaker cover. At the same time, through the movable stop block set on the threaded rod, the movable stop block can be rotated to abut against the movable cover, thereby fixing it on the circuit breaker cover. Therefore, the size of the circuit breaker cover can be adjusted according to the movement of the movable cover, so as to adapt to different specifications of switches. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the disconnect switch circuit breaker cover of this utility model;
[0017] Figure 2 This is a top view structural diagram of the disconnect switch circuit breaker cover of this utility model;
[0018] Figure 3 This is a schematic diagram of the back structure of the disconnect switch circuit breaker cover of this utility model.
[0019] In the diagram: 1. Circuit breaker cover; 11. Auxiliary slide groove; 12. Handle; 13. First guide post hole; 14. Threaded rod; 15. Movable stop block; 2. Movable cover; 21. Sliding opening; 22. Second guide post hole. Detailed Implementation
[0020] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model.
[0021] like Figure 1-3 As shown, a disconnect switch circuit breaker cover includes: a circuit breaker cover 1 and a movable cover 2; a threaded rod 14 is provided at the bottom right side of the circuit breaker cover 1, and a movable stop block 15 is threadedly connected to the rod body of the threaded rod 14; a handle 12 is provided at the center of the top of the circuit breaker cover 1; several first guide post holes 13 are opened on the right side of the front and back of the circuit breaker cover 1; a sliding opening 21 is opened on the right side of the movable cover 2, and the movable cover 2 is slidably connected to the bottom of the circuit breaker cover 1; the right side and bottom plates of the circuit breaker cover 1 are open-type designs, and the right side, top, and bottom plates of the movable cover 2 are also open-type designs. It should be noted that the length of the front of the sliding opening 21 matches the length of the front of the movable cover 2, and the width of the front of the sliding opening 21 is greater than the diameter of the front of the threaded rod 14.
[0022] like Figure 1-3 As shown in one embodiment, the front of the circuit breaker cover 1 and the movable cover 2 are rectangular parallelepipeds, and the top plate of the circuit breaker cover 1 near the opening has an outward protrusion design. It should be noted that the protrusion design of the circuit breaker cover 1 near the opening appears as a stepped shape when viewed from the front, and this design is to facilitate the circuit breaker cover 1 to be tilted and cover the switch.
[0023] like Figure 1-3 As shown in one embodiment, there are three first guide post holes 13, which are inclined from top to bottom on the front and back sides of the circuit breaker cover 1 near the opening. Second guide post holes 22 are provided on the right side of the bottom of the front and back sides of the movable cover 2. A spring rope is provided on the plate on the right side of the movable cover 2, and one end of the spring rope is provided with a guide post. The diameter of the front of the first guide post hole 13 and the second guide post hole 22 is the same, and the diameter of the front of the first guide post hole 13 is adapted to the guide post. It should be noted that the second guide post hole 22 is perpendicular to the first of the three first guide post holes 13, and this design allows the circuit breaker cover 1 to be secured to the utility pole after it is placed on the switch, preventing it from slipping off the switch.
[0024] like Figure 1-3As shown in one embodiment, the length of the top view of the movable cover 2 is the same as the length of the top view of the circuit breaker cover 1, and the width of the top view of the movable cover 2 is greater than the width of the top view of the circuit breaker cover 1. An auxiliary sliding groove 11 is provided in the center of the front and back of the circuit breaker cover 1, and a slider is provided at the top of the front and back of the movable cover 2. This slider corresponds to and is slidably connected to the auxiliary sliding groove 11. It should be noted that this design allows workers to easily pull the movable cover 2 up and down on the circuit breaker cover 1. Furthermore, when there is no need to increase the overall length of the circuit breaker cover 1, the movable cover 2 can be directly removed. This not only allows the circuit breaker cover 1 to adapt to switches of different specifications but also makes it convenient to carry and use.
[0025] like Figure 1-3 As shown in one embodiment, both the circuit breaker cover 1 and the movable cover 2 have heat insulation layers in their inner walls, and both the circuit breaker cover 1 and the movable cover 2 are made of acrylic.
[0026] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A circuit breaker cover for a disconnecting switch, characterized in that, include: Circuit breaker (1) and movable cover (2); A threaded rod (14) is provided at the bottom right side of the circuit breaker cover (1), and a movable stop block (15) is threadedly connected to the rod body of the threaded rod (14). A handle (12) is provided at the center of the top of the circuit breaker cover (1), and several first guide post holes (13) are opened on the right side of the front and back of the circuit breaker cover (1). The movable cover (2) has a sliding opening (21) on the right side of the cover body, and the movable cover (2) is slidably connected to the bottom of the circuit breaker cover (1); The right side and bottom plates of the circuit breaker cover (1) are open-type designs, as are the right side, top, and bottom plates of the movable cover (2).
2. The circuit breaker cover for a disconnecting switch according to claim 1, characterized in that, The front of the circuit breaker cover (1) and the movable cover (2) are rectangular parallelepipeds, and the top plate of the circuit breaker cover (1) near the opening is designed to bulge outwards.
3. The circuit breaker cover for a disconnecting switch according to claim 1, characterized in that, The first guide post hole (13) has three holes and is opened at an angle from top to bottom on the side of the front and back of the circuit breaker cover (1) near the opening. The second guide post hole (22) is provided on the right side of the bottom of the front and back of the movable cover (2).
4. The circuit breaker cover for a disconnecting switch according to claim 1, characterized in that, The length of the top view of the movable cover (2) is the same as the length of the top view of the circuit breaker cover (1), and the width of the top view of the movable cover (2) is greater than the width of the top view of the circuit breaker cover (1).
5. A circuit breaker cover for a disconnecting switch according to claim 1, characterized in that, The circuit breaker cover (1) has an auxiliary slide groove (11) in the center of its front and back sides, and the movable cover (2) has a slider at the top of its front and back sides. The slider corresponds to and is slidably connected to the auxiliary slide groove (11).
6. A circuit breaker cover for a disconnecting switch according to claim 3, characterized in that, A spring rope is provided on the plate on the right side of the movable cover (2). One end of the spring rope is provided with a guide post. The diameter of the first guide post hole (13) and the diameter of the second guide post hole (22) are the same, and the diameter of the first guide post hole (13) is adapted to the guide post.
7. A circuit breaker cover for a disconnecting switch according to claim 3, characterized in that, Both the circuit breaker cover (1) and the movable cover (2) have heat insulation layers in their inner walls, and both the circuit breaker cover (1) and the movable cover (2) are made of acrylic.