A high voltage load isolation switch
By equipping the high-voltage load disconnect switch with a cleaning device, the problem of dust accumulation on the surface of the porcelain insulator is solved, realizing automatic cleaning of the porcelain insulator surface and unmanned high-altitude operation, reducing manpower input and the difficulty of high-altitude maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI ANSHOU ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-24
AI Technical Summary
Dust accumulation on the surface of the porcelain insulators of outdoor high-voltage disconnect switches leads to the formation of a conductive liquid film, affecting insulation withstand voltage. Existing technology lacks self-cleaning capabilities, resulting in high manpower input and difficulty in high-altitude maintenance.
A high-voltage load disconnect switch was designed, equipped with a cleaning device, including a bracket, a linear motor, a rotary motor, and a cleaning brush roller. The device moves on a guide rail via a drive motor and rubber rollers to achieve automatic cleaning of the ceramic bottle surface. It is powered by a storage battery to support unmanned high-altitude operations.
It enables automatic cleaning of porcelain bottle surfaces, reduces manpower input, improves the safety and efficiency of high-altitude operations, and supports cleaning of multiple porcelain bottles and unmanned operation between multiple devices.
Smart Images

Figure CN224554253U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-voltage disconnect switch technology, and in particular to a high-voltage load disconnect switch. Background Technology
[0002] High-voltage disconnect switches are one of the most important switching devices in electrical systems. They are used to cut off or switch lines, isolate voltage, and ensure the safety of high-voltage electrical appliances and equipment during maintenance. High-voltage disconnect switches can be divided into indoor and outdoor types according to their installation location. Outdoor high-voltage disconnect switches are mostly installed on poles, exposed to the air. Over time, dust accumulates on the surface of the porcelain insulators. When this dust accumulates, especially in humid weather, it forms a conductive liquid film upon contact with moisture, significantly reducing the insulation withstand voltage of the insulators. This can easily lead to conductor flashover, affecting the safety and stability of the power system. However, current outdoor high-voltage disconnect switches lack self-cleaning capabilities for the insulators. To avoid flashover, electrical workers typically need to clean the insulator surfaces regularly, resulting in significant manpower requirements. Furthermore, outdoor high-voltage disconnect switches are usually installed at high locations, making maintenance more difficult. Utility Model Content
[0003] The purpose of this invention is to provide a high-voltage load disconnect switch to solve the problems existing in the prior art.
[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0005] A high-voltage load disconnect switch includes a disconnect switch body and a cleaning device disposed on the outside of the disconnect switch body. Guide rails are fixedly installed at the bottom of both the left and right sides of the disconnect switch body. A slider that cooperates with the two guide rails is fixedly installed at the bottom of the cleaning device. A drive motor is disposed on one side of the slider. A rubber roller is sleeved on the output shaft of the drive motor. The surface of the rubber roller is in contact with the surface of the guide rail.
[0006] The cleaning device includes a bracket, a linear motor, a rotary motor, and a cleaning brush roller. The bracket includes a first vertical plate, a second vertical plate, and a crossbeam. The first vertical plate is slidably mounted on the top of the left guide rail, and the second vertical plate is slidably mounted on the top of the right guide rail. The two ends of the crossbeam are fixedly connected to the tops of the first and second vertical plates, respectively. The linear motor is fixedly mounted on the bottom of the crossbeam, and the rotary motor is fixedly mounted on the moving part of the linear motor. The top of the cleaning brush roller is eccentrically mounted on the bottom of the rotary motor's turntable.
[0007] By adopting the above technical solution, the eccentrically positioned cleaning brush roller, in conjunction with a linear motor, can clean the surface of the porcelain insulators erected on the disconnector switch. By moving the position of the entire cleaning device, multiple porcelain insulators on the same disconnector switch can be cleaned. Furthermore, by setting a lifting ring at the top of the crossbeam, the cleaning device in this unit can be hoisted to other disconnector switches, achieving the purpose of multi-purpose and unmanned high-altitude cleaning operations.
[0008] In a further embodiment, a variable frequency motor is fixedly installed on the bottom end of the side of the first vertical plate and the second vertical plate that are far apart from each other. A hook is sleeved on the output shaft of the variable frequency motor, and a slot corresponding to the hook is provided on the guide rail, and the slot runs through the front and back.
[0009] By adopting the above technical solution, after the hook is locked in the slot, the cleaning device cannot be directly detached from the guide rail. At the same time, because the slot is through the front and back, it does not affect the forward and backward movement of the cleaning device, which greatly increases the safety of the equipment when operating at height.
[0010] In a further embodiment, the top of the crossbeam is provided with a receiving groove, and an energy storage battery is fixedly installed in the receiving groove.
[0011] By adopting the above technical solution, reasonable wiring can enable the energy storage battery to power the entire cleaning device. When working at height, if the energy storage battery runs out of power, it can be lifted down by drone and replaced with a new energy storage battery. Due to the weight of the energy storage battery itself, the electrical patch at the bottom of the battery will automatically fit with the contacts set inside the receiving slot to achieve electrical connection.
[0012] In a further embodiment, limit posts are provided at the top of both the front and rear ends of the guide rail, and the limit posts are used to limit the maximum distance that the cleaning device can move back and forth.
[0013] In a further embodiment, a guide ramp is provided at the top periphery of the front end of the guide rail.
[0014] By adopting the above technical solution, the hoisting and cleaning device can be guided and docked when placed on the guide rail, thus reducing the positioning requirements.
[0015] In a further embodiment, the rubber roller is provided with a notch.
[0016] In summary, this utility model has the following beneficial effects:
[0017] 1. The eccentrically positioned cleaning brush roller, in conjunction with a linear motor, can clean the surface of the porcelain insulators erected on the disconnector switch. By moving the position of the entire cleaning device, multiple porcelain insulators on the same disconnector switch can be cleaned. Furthermore, by setting a lifting ring at the top of the crossbeam, the cleaning device in this unit can be hoisted to other disconnector switches, achieving the purpose of multi-purpose and unmanned high-altitude cleaning operations. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a structural schematic diagram illustrating the cleaning device of this utility model.
[0020] In the figure, 1 is the cleaning device; 11 is the support; 111 is the first vertical plate; 112 is the second vertical plate; 113 is the crossbeam; 12 is the linear motor; 13 is the rotary motor; 14 is the cleaning brush roller; 2 is the guide rail; 3 is the slider; 4 is the drive motor; and 5 is the rubber roller. Detailed Implementation
[0021] The present invention will be further described in detail below with reference to the accompanying drawings.
[0022] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.
[0023] Example 1:
[0024] like Figures 1-2 As shown, a high-voltage load disconnect switch includes a disconnect switch body and a cleaning device 1 disposed on the outside of the disconnect switch body. Guide rails 2 are fixedly installed on the bottom of both the left and right sides of the disconnect switch body. A slider 3 that cooperates with the two guide rails 2 is fixedly installed on the bottom of the cleaning device 1. A drive motor 4 is disposed on one side of the slider 3. A rubber roller 5 is sleeved on the output shaft of the drive motor 4. The surface of the rubber roller 5 is in contact with the surface of the guide rail 2.
[0025] The cleaning device 1 includes a bracket 11, a linear motor 12, a rotary motor 13, and a cleaning brush roller 14. The bracket 11 includes a first vertical plate 111, a second vertical plate 112, and a crossbeam 113. The first vertical plate 111 is slidably mounted on the top of the left guide rail 2, and the second vertical plate 112 is slidably mounted on the top of the right guide rail 2. The two ends of the crossbeam 113 are fixedly connected to the tops of the first vertical plate 111 and the second vertical plate 112, respectively. The linear motor 12 is fixedly mounted on the bottom of the crossbeam 113, and the rotary motor 13 is fixedly mounted on the moving part of the linear motor 12. The top of the cleaning brush roller 14 is eccentrically mounted on the bottom of the turntable of the rotary motor 13. Variable frequency motors are fixedly mounted on the bottom ends of the first vertical plate 111 and the second vertical plate 112 on opposite sides. Hooks are sleeved on the output shafts of the variable frequency motors, and slots corresponding to the hooks are provided on the guide rail 2, with the slots extending through the front and rear. A receiving groove is provided on the top of the crossbeam 113, and a storage battery is fixedly installed in the receiving groove. The front of the guide rail 2... Limiting posts are provided at the top of both ends to limit the maximum distance the cleaning device 1 can move forward and backward. A guide ramp is provided on the top periphery of the front end of the guide rail 2. A notch is provided on the rubber roller 5. The notch on the rubber roller 5 is to facilitate docking when the cleaning device is hoisted onto the guide rail. Because the rubber roller 5 needs to press against the surface of the guide rail to increase friction and facilitate driving, the rubber roller 5 will definitely have a pressing relationship with the surface of the guide rail during actual use. There are two settings here. The first is that the surface of the rubber roller 5 is in contact with the top surface of the guide rail and is naturally pressed under the action of gravity. In this case, there is no need to set a notch on the rubber roller 5. The other is that the rubber roller 5 is in contact with the side wall of the guide rail. In this case, a notch needs to be set during installation. During operation, there will be problems with jerking and incomplete movement. It is necessary to manually move it and adjust and judge it by controlling it with a handle on the ground.
[0026] Specific implementation process: Reasonable wiring can enable the energy storage battery to power the entire cleaning device. When working at height, if the energy storage battery runs out of power, it can be lifted down by drone and replaced with a new energy storage battery. Due to the weight of the energy storage battery itself, the electrical patch at the bottom of the battery will automatically fit with the contacts set inside the receiving slot to achieve electrical connection.
[0027] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.
[0028] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A high-voltage load disconnect switch, characterized in that: The device includes a disconnect switch body and a cleaning device (1) disposed on the outside of the disconnect switch body. Guide rails (2) are fixedly installed on the bottom of both sides of the disconnect switch body. A slider (3) that cooperates with the two guide rails (2) is fixedly installed on the bottom of the cleaning device (1). A drive motor (4) is provided on one side of the slider (3). A rubber roller (5) is sleeved on the output shaft of the drive motor (4). The surface of the rubber roller (5) is in contact with the surface of the guide rail (2). The cleaning device (1) includes a bracket (11), a linear motor (12), a rotary motor (13), and a cleaning brush roller (14). The bracket (11) includes a first vertical plate (111), a second vertical plate (112), and a crossbeam (113). The first vertical plate (111) is slidably mounted on the top of the left guide rail (2), and the second vertical plate (112) is slidably mounted on the top of the right guide rail (2). The two ends of the crossbeam (113) are fixedly connected to the tops of the first vertical plate (111) and the second vertical plate (112), respectively. The linear motor (12) is fixedly mounted on the bottom of the crossbeam (113), and the rotary motor (13) is fixedly mounted on the moving part of the linear motor (12). The top end of the cleaning brush roller (14) is eccentrically mounted on the bottom of the turntable of the rotary motor (13).
2. The high-voltage load disconnect switch according to claim 1, characterized in that: A variable frequency motor is fixedly installed on the bottom end of the first vertical plate (111) and the second vertical plate (112) on the side away from each other. A hook is sleeved on the output shaft of the variable frequency motor. A slot corresponding to the hook is provided on the guide rail (2), and the slot runs through the front and back.
3. A high-voltage load disconnect switch according to claim 1, characterized in that: The top of the crossbeam (113) is provided with a receiving groove, and an energy storage battery is fixedly installed in the receiving groove.
4. A high-voltage load disconnect switch according to claim 1, characterized in that: Limiting posts are provided at the top of both the front and rear ends of the guide rail (2), and the limiting posts are used to limit the maximum distance that the cleaning device (1) can move back and forth.
5. A high-voltage load disconnect switch according to claim 1, characterized in that: The guide rail (2) has a guide slope at the top periphery of its front end.
6. A high-voltage load disconnect switch according to claim 1, characterized in that: A notch is provided on the rubber roller (5).