A new type of isolating switch with double insulation protection
By designing a new type of disconnecting switch with a double insulation protection structure, the problems of not being able to provide double insulation and inconvenient installation in different environments have been solved. It achieves all-round shielding and rapid installation, improving the safety and installation efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG YONGRUI ELECTRICAL EQUIP CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-06-23
AI Technical Summary
Existing new disconnect switches cannot provide double insulation protection in different environments, and are inconvenient to install and operate.
A novel disconnecting switch with dual insulation protection was designed. Through the combined structure of a load-bearing plate, insulating ceramic sleeve, front protective frame, rear protective frame, left contact plate, slide rail, support frame and movable connecting platform, it achieves all-round shielding and rapid installation.
It achieves dual insulation protection in different environments, improving equipment safety and installation efficiency, and reducing maintenance costs and power outage time.
Smart Images

Figure CN224400298U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of disconnect switches, specifically a novel disconnect switch with double insulation protection. Background Technology
[0002] With the development of the power industry, the voltage level of the power system is constantly increasing, which places higher demands on the insulation performance of disconnect switches. Under high voltage conditions, disconnect switches with ordinary insulation structures are prone to insulation breakdown and other problems, affecting the safe and stable operation of the power system. Traditional disconnect switches usually use a single insulation material or insulation structure. Under harsh working environments or long-term high voltage, the insulation performance will gradually decline, posing a risk of insulation failure. They cannot reliably isolate the power supply and are prone to electrical accidents. Good insulation protection can not only protect personnel safety but also reduce equipment damage caused by insulation failure. Insulation failure may cause short circuits, arcing, and other problems, which can damage other power equipment and cause huge economic losses. The double insulation protection of new disconnect switches helps to improve equipment reliability, reduce maintenance costs and power outage time. In order to improve the safety of disconnect switches, a new type of disconnect switch with double insulation protection is needed.
[0003] Existing new disconnect switches cannot provide double isolation protection when used in different environments, and they also cannot be quickly installed. Therefore, there is an urgent need for a new type of disconnect switch with double insulation protection. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a new type of disconnecting switch with double insulation protection, so as to solve the problems that existing new disconnecting switches cannot provide double insulation protection for the entire disconnecting switch when used in different environments, and cannot be quickly installed.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel disconnecting switch with double insulation protection, comprising a load-bearing plate, a fixing hole at one end of the load-bearing plate, a connecting hole in the middle of the load-bearing plate, an insulating ceramic sleeve installed at the upper end of the load-bearing plate, a front protective frame installed at the front end of the insulating ceramic sleeve, a rear protective frame installed at the rear end of the insulating ceramic sleeve, a stabilizing platform installed at the upper end of the insulating ceramic sleeve, a fixing rod installed at the upper end of the stabilizing platform, a left contact plate installed at the upper end of the stabilizing platform, a slide rail installed at the upper end of the left contact plate, a support frame installed at the upper end of the slide rail, a right support plate installed at the upper end of the insulating ceramic sleeve, a round shaft penetrating through the front end of the right support plate, a movable connecting platform installed at one end of the round shaft, a sliding groove opened in the inner wall of the movable connecting platform, and a hollow frame installed at one end of the sliding groove.
[0006] Preferably, the fixing holes are arranged symmetrically with respect to the central axis of the load-bearing plate, and the load-bearing plate has a concave structure.
[0007] Preferably, the front protective frame is movably connected to the load-bearing plate, and the front protective frame and the rear protective frame are the same size.
[0008] Preferably, the left contact plate is threadedly connected to the stabilizing platform via a fixing rod, and the left contact plate is in close contact with the stabilizing platform.
[0009] Preferably, the support frame forms a sliding structure with the left end contact plate via a slide rail, and the left end contact plate is configured in an "L" shape.
[0010] Preferably, the hollow frame forms a sliding structure with the movable connecting platform through a groove, and the movable connecting platform forms a rotating structure with the right end support plate through a round shaft.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This utility model, through the setting of a load-bearing plate, an insulating ceramic sleeve, a front protective frame, a rear protective frame, a left contact plate, a slide rail, a support frame, and a movable connecting platform, allows the front and rear protective frames installed in the device to provide all-round shielding protection for the insulating ceramic sleeve. When the device is not connected, the movable connecting platform can be lifted by the support frame to disconnect the left and right contact plates, so that the entire new disconnecting switch has a double insulation protection effect.
[0013] 2. This utility model, through the setting of a load-bearing plate, fixing holes, connecting holes, right end support plate, round shaft, movable connecting platform and hollow frame, allows the entire new disconnect switch to be connected through the fixing holes, and at the same time, the switches can be fixed in series through the connecting holes, making it more convenient and faster to connect, install and fix the new disconnect switch. Attached Figure Description
[0014] Figure 1 This is a front view structural diagram of the present utility model;
[0015] Figure 2 This is a structural schematic diagram of the insulating ceramic sleeve, the front protective frame, and the rear protective frame of this utility model.
[0016] Figure 3 This is a bottom view of the structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the structure of the left contact plate, right support plate, and movable connecting platform of this utility model.
[0018] In the diagram: 1. Load-bearing plate; 2. Fixing hole; 3. Connecting hole; 4. Insulating ceramic sleeve; 5. Front protective frame; 6. Rear protective frame; 7. Stabilizing platform; 8. Fixing rod; 9. Left contact plate; 10. Slide rail; 11. Support frame; 12. Right support plate; 13. Round shaft; 14. Movable connecting platform; 15. Slide groove; 16. Hollow frame. Detailed Implementation
[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0020] The embodiments of this utility model will be described below based on its overall structure.
[0021] Please see Figures 1-4 A novel disconnecting switch with double insulation protection includes a load-bearing plate 1. One end of the load-bearing plate 1 has a fixing hole 2, and the middle of the load-bearing plate 1 has a connecting hole 3. An insulating ceramic sleeve 4 is installed on the upper end of the load-bearing plate 1. The fixing holes 2 are symmetrically arranged around the central axis of the load-bearing plate 1, and the load-bearing plate 1 has a concave structure. Through the fixing holes 2 and connecting holes 3 on the load-bearing plate 1, the entire novel disconnecting switch can be quickly and efficiently installed, fixed, and connected in series. A front protective frame 5 is installed at the front end of the insulating ceramic sleeve 4, and a rear protective frame 6 is installed at the rear end of the insulating ceramic sleeve 4. The front protective frame 5 is movably connected to the load-bearing plate 1, and the front protective frame 5 and the rear protective frame 6 are the same size. The front protective frame 5 and the rear protective frame 6 in the device can provide all-round protection for the insulating ceramic sleeve 4, making it safer to use. An insulating ceramic sleeve 4 is installed on the upper end... A stabilizing platform 7 is equipped with a fixed rod 8 at its upper end and a left contact plate 9 at its upper end. A slide rail 10 is provided on the upper end of the left contact plate 9, and a support frame 11 is installed on the upper end of the slide rail 10. A right support plate 12 is installed on the upper end of the insulating ceramic sleeve 4. A round shaft 13 is installed through the front end of the right support plate 12. A movable connecting platform 14 is installed at one end of the round shaft 13. A sliding groove 15 is provided on the inner wall of the movable connecting platform 14, and a hollow frame 16 is installed at one end of the sliding groove 15. The hollow frame 16 and the movable connecting platform 14 form a sliding structure through the sliding groove 15, and the movable connecting platform 14 and the right support plate 12 form a rotating structure through the round shaft 13. The movable connecting platform 14 installed in the device can be operated more easily during use. At the same time, the left contact plate 9 and the right support plate 12 can be separated by the support frame 11, which can break the insulation.
[0022] Working principle: In use, the entire new disconnect switch can be connected and installed through the lower load-bearing plate 1. It can be installed through the fixing holes 2 opened on the load-bearing plate 1. After installation, multiple sets of new disconnect switches can be connected in series through the connection holes 3 opened on the load-bearing plate 1. After the series connection is completed, the outer end of the insulating ceramic sleeve 4 installed in the device is protected by the front protective frame 5 and the rear protective frame 6. At the same time, the left contact plate 9 can be connected to the stable platform 7 through the fixing rod 8. The right support plate 12 can be connected to the stable platform 7 in the same way. After the connection is completed, the movable connecting platform 14 is rotated through the round shaft 13, so that the front end of the movable connecting platform 14 is connected to the left contact plate 9. The hollow frame 16 can be moved inside the movable connecting platform 14 through the sliding groove 15 in the device for easy operation. This completes the use of the device. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A novel disconnecting switch with double insulation protection, comprising a load-bearing plate (1), characterized in that: The load-bearing plate (1) has a fixing hole (2) at one end and a connecting hole (3) in the middle. An insulating ceramic sleeve (4) is installed on the upper end of the load-bearing plate (1). A front protective frame (5) is installed on the front end of the insulating ceramic sleeve (4), and a rear protective frame (6) is installed on the rear end of the insulating ceramic sleeve (4). A stabilizing platform (7) is installed on the upper end of the insulating ceramic sleeve (4), and a fixing rod (8) is installed on the upper end of the stabilizing platform (7). A left end is installed on the upper end of the stabilizing platform (7). The left end of the contact plate (9) has a slide rail (10) on its upper end. The slide rail (10) has a support frame (11) on its upper end. The right end of the insulating ceramic sleeve (4) has a support plate (12) on its upper end. A round shaft (13) is installed through the front end of the right end support plate (12). A movable connecting platform (14) is installed at one end of the round shaft (13). A sliding groove (15) is opened on the inner wall of the movable connecting platform (14). A hollow frame (16) is installed at one end of the sliding groove (15).
2. A novel disconnecting switch with double insulation protection according to claim 1, characterized in that: The fixing holes (2) are symmetrically arranged with the central axis of the load-bearing plate (1), and the load-bearing plate (1) is arranged with a concave structure.
3. A novel disconnecting switch with double insulation protection according to claim 1, characterized in that: The front protective frame (5) is movably connected to the load-bearing plate (1), and the front protective frame (5) and the rear protective frame (6) are the same size.
4. A novel disconnecting switch with double insulation protection according to claim 1, characterized in that: The left end contact plate (9) is threadedly connected to the stabilizing platform (7) via a fixing rod (8), and the left end contact plate (9) is tightly fitted to the stabilizing platform (7).
5. A novel disconnecting switch with double insulation protection according to claim 1, characterized in that: The support frame (11) forms a sliding structure with the left end contact plate (9) via the slide rail (10), and the left end contact plate (9) is set in an "L" shape.
6. A novel disconnecting switch with double insulation protection according to claim 1, characterized in that: The hollow frame (16) forms a sliding structure with the movable connecting platform (14) through the slide groove (15), and the movable connecting platform (14) forms a rotating structure with the right end support plate (12) through the round shaft (13).