A high-voltage disconnect switch
By designing and installing positioning components and protective tension components on the high-voltage disconnect switch, the wear problem caused by sand and dust was solved, the service life of the high-voltage disconnect switch was extended, the installation process was simplified, and the practicality of the device was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI GAOKAI ELECTRIC TECH CO LTD
- Filing Date
- 2025-04-01
- Publication Date
- 2026-05-26
AI Technical Summary
In windy and sandy areas, sand and dust adhere to the static contacts and knife surfaces of high-voltage disconnect switches, causing wear, poor contact, and overheating, thus affecting their service life.
A high-voltage disconnector protection device is designed, which includes a mounting positioning component and a protective tension component. The protective tension component is fixed on the support base by the mounting positioning component, and the telescopic enclosure of the protective tension component protects the high-voltage disconnector body.
It effectively prevents high-voltage disconnect switches from aging faster due to exposure, extends their service life, simplifies the installation and replacement process, and improves practicality and convenience.
Smart Images

Figure CN224288133U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-voltage switch technology, and more specifically, to a high-voltage disconnecting switch. Background Technology
[0002] High-voltage disconnect switches are important electrical appliances in power plants, substations, and various power supply and consumption systems. They are used to switch and isolate live high-voltage lines from the high-voltage busbars or circuit breakers under maintenance, ensuring the safety of high-voltage electrical appliances and devices during maintenance work. They also serve to isolate voltage and are widely used in power, railway, mining, oil field, and other power supply and consumption systems of the national economy.
[0003] According to Chinese Patent No. CN219575485U, a high-voltage disconnecting switch is disclosed, including a base, insulating posts, terminals, stationary contacts, and blades. Two sets of insulating posts are provided, positioned opposite each other on the base. Terminals correspond one-to-one with the insulating posts and are located on the top surface of the insulating posts. Stationary contacts correspond one-to-one with the terminals and are located on the terminals. Two sets of blades are provided opposite each other, each with a copper plate at both ends. One copper plate is rotatably mounted on and abuts against a stationary contact, while the other copper plate abuts against another stationary contact after the blade is rotated. The blades are made of aluminum. In windy and sandy areas, sand and dust will adhere to and accumulate on the outer surface of the stationary contacts. During the opening and closing of the disconnecting switch, the sand and dust adhering to the contact area will cause wear on the stationary contacts and the outer surface of the blades used to contact the contacts, leading to increased contact resistance, overheating, and erosion. Poor contact or wear problems may occur when the switch is closed. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a high-voltage disconnecting switch to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-voltage disconnecting switch, including a supporting base frame, wherein a high-voltage disconnecting switch protection device is provided at the upper end of the supporting base frame, the high-voltage disconnecting switch protection device including: a mounting positioning component and a protective tension component, wherein the protective tension component is disposed inside the mounting positioning component, and the lower end of the mounting positioning component is mounted on the upper end of the supporting base frame.
[0006] In a preferred embodiment, the mounting and positioning assembly includes: a positioning base plate, a first assembly threaded groove, a second assembly threaded groove, a first positioning screw, a second positioning screw, and a high-voltage disconnect switch body. The lower end of the high-voltage disconnect switch body is mounted on the upper end of the support base, and the lower end of the positioning base plate is mounted on the upper side of the support base. The first assembly threaded groove is formed at both the upper and lower ends of the positioning base plate.
[0007] In a preferred embodiment, the protective tensioning assembly includes: an upper telescopic protective barrier, a first side telescopic protective barrier, a second side telescopic protective barrier, a first splicing groove, and a second splicing groove, wherein the first splicing groove and the second splicing groove are of the same size.
[0008] In a preferred embodiment, an end positioning frame is installed on the upper end of the positioning base plate, and two sets of both the positioning base plate and the end positioning frame are provided. The lower end of the first positioning screw passes through the upper and lower ends of the positioning base plate and the side of the support base in sequence.
[0009] In a preferred embodiment, the second assembly threaded groove is formed on the inner and outer walls of the upper end of the end positioning frame, and the second positioning screw is detachably installed inside the second assembly threaded groove.
[0010] In a preferred embodiment, the lower ends of the upper telescopic protective enclosure are respectively installed on the upper ends of the first side telescopic protective enclosure and the second side telescopic protective enclosure.
[0011] In a preferred embodiment, the upper telescopic protective enclosure is provided with docking blocks on both sides of the upper end, and the second positioning screw is detachably installed at the front and rear ends of the docking blocks. There are two sets of docking blocks, and the outer side walls of the two sets of docking blocks are detachably installed on the inner side of the upper end of the two sets of end positioning frames.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] Compared with existing technologies, a high-voltage disconnect switch, after the upper telescopic protective cover, the first side telescopic protective cover, and the second side telescopic protective cover are installed, can protect the upper outer wall of the high-voltage disconnect switch body. This effectively avoids the problem of the high-voltage disconnect switch body being directly exposed, which would cause accelerated aging and reduced service life. Furthermore, the device uses a simple and convenient installation and disassembly process with a positioning component, greatly reducing the difficulty of installing and replacing the protective tensioning components, and further improving the practicality and ease of use of the entire device. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0015] Figure 2 This is a schematic diagram of the high-voltage disconnector protection device of this utility model.
[0016] Figure 3 This is a schematic diagram of the installation and positioning component structure of this utility model.
[0017] Figure 4 This is a schematic diagram of the protective tensile component structure of this utility model.
[0018] The attached figures are labeled as follows: 1. Support base frame; 2. High-voltage disconnect switch protection device; 21. Mounting and positioning assembly; 211. High-voltage disconnect switch body; 212. Positioning base plate; 213. First assembly threaded groove; 214. End positioning frame; 215. Second assembly threaded groove; 216. Second positioning screw; 217. First positioning screw; 22. Protective tension assembly; 221. First side telescopic protective enclosure; 222. First splicing groove; 223. Upper telescopic protective enclosure; 224. Second side telescopic protective enclosure; 225. Second splicing groove. Detailed Implementation
[0019] 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.
[0020] As attached Figure 1-4 As shown, this utility model provides a high-voltage disconnect switch, including a support base 1. A high-voltage disconnect switch protection device 2 is provided on the upper end of the support base 1. The high-voltage disconnect switch protection device 2 includes: a mounting positioning component 21 and a protective tension component 22. The protective tension component 22 is disposed inside the mounting positioning component 21, and the lower end of the mounting positioning component 21 is mounted on the upper end of the support base 1.
[0021] The mounting and positioning assembly 21 includes: a positioning base plate 212, a first assembly threaded groove 213, a second assembly threaded groove 215, a first positioning screw 217, a second positioning screw 216, and a high-voltage disconnect switch body 211. The lower end of the high-voltage disconnect switch body 211 is mounted on the upper end of the support base frame 1, and the lower end of the positioning base plate 212 is mounted on the upper side of the support base frame 1. The first assembly threaded groove 213 is formed at both the upper and lower ends of the positioning base plate 212. An end positioning frame 214 is mounted on the upper end of the positioning base plate 212. Both the positioning base plate 212 and the end positioning frame 214 are provided with two sets. The lower end of the first positioning screw 217 passes through the upper and lower ends of the positioning base plate 212 and the support base frame 1. The second assembly threaded groove 215 is formed on the inner and outer walls of the upper end of the end positioning frame 214. The second positioning screw 216 is detachably installed inside the second assembly threaded groove 215.
[0022] The protective tensioning assembly 22 includes: an upper telescopic protective barrier 223, a first side telescopic protective barrier 221, a second side telescopic protective barrier 224, a first splicing groove 222, and a second splicing groove 225. The first splicing groove 222 and the second splicing groove 225 are of the same size. The lower ends of the upper telescopic protective barrier 223 are respectively installed on the upper ends of the first side telescopic protective barrier 221 and the second side telescopic protective barrier 224. The upper ends of the upper telescopic protective barrier 223 are provided with docking blocks on both sides. The second positioning screw 216 is detachably installed at the front and rear ends of the docking blocks. There are two sets of docking blocks, and the outer side walls of the two sets of docking blocks are detachably installed on the inner side of the upper end of the two sets of end positioning frames 214.
[0023] The specific implementation method is as follows: When using this utility model, the lower ends of the two sets of positioning base plates 212 and the end positioning frames 214 set inside the installation positioning component 21 are first installed on both sides of the upper end of the support base frame 1. After the two sets of positioning base plates 212 and the end positioning frames 214 are installed, the workers install one end of the upper telescopic protective cover 223, the first side telescopic protective cover 221 and the second side telescopic protective cover 224 set inside the protective tensioning component 22 on the inside of one set of end positioning frames 214. After the upper telescopic protective cover 223, the first side telescopic protective cover 221 and the second side telescopic protective cover 224 are installed, the upper telescopic protective cover 223, the first side telescopic protective cover 221 and the second side telescopic protective cover 224 are pulled. The enclosure 224 can be installed on the inner side of another set of end positioning frames 214, with the rear ends of the upper telescopic protective enclosure 223, the first side telescopic protective enclosure 221, and the second side telescopic protective enclosure 224 installed. After the upper telescopic protective enclosure 223, the first side telescopic protective enclosure 221, and the second side telescopic protective enclosure 224 are installed, the upper outer wall of the high-voltage disconnect switch body 211 can be protected. This can effectively prevent the high-voltage disconnect switch body 211 from being directly exposed, which would cause accelerated aging and reduced service life. In addition, the device can be easily installed and disassembled by setting the installation positioning component 21, which greatly reduces the difficulty of installing and replacing the protective tension component 22, and further improves the practicality and ease of use of the entire device.
[0024] The working principle of this utility model is as follows: When using this utility model, the lower ends of the two sets of positioning base plates 212 and the end positioning frame 214 inside the installation positioning component 21 are first installed on both sides of the upper end of the support base frame 1. After the two sets of positioning base plates 212 and the end positioning frame 214 are installed, the workers install one end of the upper telescopic protective cover 223, the first side telescopic protective cover 221 and the second side telescopic protective cover 224 inside the protective tensioning component 22 inside the end positioning frame 214. The upper telescopic protective cover 223 and the first side telescopic protective cover 221 are then installed on the inner side of the end positioning frame 214. After the upper telescopic protective cover 223, the first side telescopic protective cover 221, and the second side telescopic protective cover 224 are installed, the rear ends of the upper telescopic protective cover 223, the first side telescopic protective cover 221, and the second side telescopic protective cover 224 can be installed inside another set of end positioning frames 214. After the upper telescopic protective cover 223, the first side telescopic protective cover 221, and the second side telescopic protective cover 224 are installed, the upper outer wall of the high-voltage disconnect switch body 211 can be protected.
[0025] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0026] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high voltage disconnector comprising a supporting chassis (1), characterized in that: The upper end of the support frame (1) is equipped with a high-voltage disconnect switch protection device (2); The high-voltage disconnector protection device (2) includes: a mounting and positioning component (21) and a protective tension component (22). The protective tension component (22) is disposed inside the mounting and positioning component (21), and the lower end of the mounting and positioning component (21) is mounted on the upper end of the support base (1).
2. A high voltage disconnector according to claim 1, characterized in that: The installation positioning component (21) includes: a positioning base plate (212), a first assembly threaded groove (213), a second assembly threaded groove (215), a first positioning screw (217), a second positioning screw (216), and a high-voltage disconnect switch body (211). The lower end of the high-voltage disconnect switch body (211) is installed on the upper end of the support base frame (1), and the lower end of the positioning base plate (212) is installed on the upper side of the support base frame (1). The first assembly threaded groove (213) is opened at the upper and lower ends of the positioning base plate (212).
3. A high voltage disconnector according to claim 2, characterized in that: The protective tensioning assembly (22) includes: an upper telescopic protective enclosure (223), a first side telescopic protective enclosure (221), a second side telescopic protective enclosure (224), a first splicing groove (222), and a second splicing groove (225), wherein the first splicing groove (222) and the second splicing groove (225) are of the same size.
4. A high voltage disconnector according to claim 2, characterized in that: The upper end of the positioning base plate (212) is equipped with an end positioning frame (214). Both the positioning base plate (212) and the end positioning frame (214) are provided with two sets. The lower end of the first positioning screw (217) passes through the upper and lower ends of the side of the positioning base plate (212) and the support base frame (1) in sequence.
5. A high voltage disconnector according to claim 4, characterized in that: The second assembly threaded groove (215) is formed on the inner and outer walls of the upper end of the end positioning frame (214), and the second positioning screw (216) is detachably installed inside the second assembly threaded groove (215).
6. A high voltage disconnector according to claim 3, characterized in that: The upper telescopic protective enclosure (223) is installed on the upper ends of the first side telescopic protective enclosure (221) and the second side telescopic protective enclosure (224) on both sides of its lower end.
7. A high voltage disconnector according to claim 3, characterized in that: The upper telescopic protective enclosure (223) is provided with docking blocks on both sides of the upper end. The second positioning screw (216) is detachably installed at the front and rear ends of the docking block. There are two sets of docking blocks, and the outer walls of the two sets of docking blocks are detachably installed on the inner side of the upper end of the two sets of end positioning frames (214).