A fixed high-voltage switch cabinet

CN224697256UActive Publication Date: 2026-08-28HEBEI YUHE ELECTRICAL TECH CO LTD
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Patent Information

Application Number
CN202522104228.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2026-08-28
Estimated Expiration
2035-09-29

AI Technical Summary

Technical Problem

[0004]本实用新型提供一种固定式高压开关柜,旨在解决现有的高压开关柜在安装后通常为固定安装的,因为开关柜体积通常较大,搬运和移动比较麻烦,因此在安装过程中调整位置比较耗时耗力,安装效率低下,且后续若有需要移动调整位置,也是比较麻烦的的问题

Benefits of technology

[0017]通过底座组件、地轨、调向电机和锁定组件的配合使用:底座组件、地轨、调向电机和锁定组件的协同工作,共同构成了一套高效、精准且自动化的开关柜移动、调向与固定系统。其核心有益效果体现在三个方面:便捷的移动性与精准的定位、安全的定向调整与自动锁定、以及多维度的稳固支撑;首先,便捷的移动性与精准的定位。地轨为开关柜提供了预设的移动路径,底座组件的底滑座与地轨顶部的凸出部分契合滑动连接,使得沉重的开关柜主体可以轻松地沿轨道滑动至大致目标位置,极大地节省了人力和时间。在需要精确定位时,锁定组件的插销能够插入底滑座的锁位孔和地轨的插孔中,将整个装置牢固地锁定在指定点,防止意外滑动,确保了定位的精确性;其次,安全的定向调整与自动锁定。当需要对开关柜主体内部进行检测或维护时,调向电机可驱动开关柜主体相对于底座进行可控的旋转,使其正面转向维护人员,极大提升了操作便利性和安全性。这一过程由电机驱动,避免了人工撬动带来的风险。尤为关键的是,在维护结束后,调向电机驱动开关柜回转至竖直状态时,会联动锁定组件自动动作:固定于开关柜外壁的旋转杆带动曲转杆运动,最终使插销准确插入地轨的插孔,实现自动锁定。这种机电一体化设计不仅省去了人工锁定的步骤,更确保了锁定动作的及时与可靠,有效防止了因遗忘锁定而带来的安全隐患;最后,多维度的稳固支撑。底座组件本身的上托座通过多个下支撑液压缸和支撑球块为开关柜主体提供底部承托与调平,而侧限位件的侧伸缩液压缸可推动侧限位板从侧面夹紧开关柜,有效抑制水平方向的晃动。结合锁定组件对底部的固定,形成了从底部到侧面的全方位约束,共同保证了开关柜在运行期间的极致稳固;

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Abstract

The utility model is suitable for high -voltage switch cabinet technical field provides a kind of fixed high-voltage switch cabinet, including switch cabinet main part: the bottom of switch cabinet main part is provided with base assembly, the outer wall of base assembly is provided with locking assembly, the bottom of base assembly is provided with ground rail, the outer wall of base assembly is provided with direction-adjusting motor, the top of switch cabinet main part is provided with upper limit component;Wherein, the base assembly includes bottom slide, and the top of bottom slide is fixedly connected with upper bracket;Through the cooperation of base assembly, ground rail, direction-adjusting motor and locking assembly: the collaborative work of base assembly, ground rail, direction-adjusting motor and locking assembly, jointly constitute a set of efficient, accurate and automated switch cabinet movement, direction-adjusting and fixed system.Its core beneficial effect reflects three aspects: convenient mobility and accurate positioning, safe directional adjustment and automatic locking, and multidimensional stable support.
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Description

Technical Field

[0001] This utility model belongs to the field of high voltage switchgear technology, and in particular relates to a fixed high voltage switchgear. Background Technology

[0002] High-voltage switchgear refers to electrical products used in power systems for power generation, transmission, distribution, energy conversion, and consumption, performing functions such as switching, control, or protection. These products range in voltage from 3.6kV to 550kV and mainly include high-voltage circuit breakers, high-voltage disconnect switches and grounding switches, high-voltage load switches, high-voltage automatic reclosers and sectionalizers, high-voltage operating mechanisms, high-voltage explosion-proof distribution devices, and high-voltage switchgear. The high-voltage switchgear manufacturing industry is a crucial component of the power transmission and transformation equipment manufacturing industry and holds a very important position in the entire power industry.

[0003] Existing high-voltage switchgear is usually fixed after installation. Because the switchgear is usually large, it is troublesome to move and transport it. Therefore, adjusting the position during the installation process is time-consuming and labor-intensive, resulting in low installation efficiency. Moreover, if it is necessary to move or adjust the position later, it is also quite troublesome. In order to avoid the above situation, it is necessary to provide a fixed high-voltage switchgear that is easy to install and operate. Utility Model Content

[0004] This utility model provides a fixed high-voltage switchgear, which aims to solve the problem that existing high-voltage switchgear is usually fixed after installation. Because the switchgear is usually large, it is troublesome to transport and move. Therefore, adjusting the position during the installation process is time-consuming and labor-intensive, resulting in low installation efficiency. Furthermore, it is also troublesome if the position needs to be moved or adjusted later.

[0005] This utility model is implemented as follows: a fixed high-voltage switchgear includes a switchgear body: a base assembly is provided at the bottom of the switchgear body, a locking assembly is provided on the outer wall of the base assembly, a ground rail is provided at the bottom of the base assembly, a directional motor is provided on the outer wall of the base assembly, and an upper limit assembly is provided at the top of the switchgear body.

[0006] The base assembly includes a bottom slide, an upper support is fixedly connected to the top of the bottom slide, multiple side limiting members are fixedly connected to the front and rear sides of the upper support, multiple lower support hydraulic cylinders are fixedly connected to the inner wall of the upper support, and a support ball is fixedly connected to the top of the lower support hydraulic cylinder.

[0007] Preferably, the top protrusion of the ground rail and the part connecting with the bottom slide are provided with multiple insertion holes, and the multiple insertion holes are equally spaced.

[0008] Preferably, the bottom inner wall of the bottom slide is slidably connected to the top protrusion of the ground rail, and the outer wall of the bottom slide is provided with a locking hole for use with the insertion hole.

[0009] Preferably, the side limiting component includes a side telescopic hydraulic cylinder fixedly connected to the outer wall of the upper support, one end of the side telescopic hydraulic cylinder is fixedly connected to a side limiting plate, and the outer wall of the side limiting plate is fitted and connected to the outer wall of the switch cabinet body.

[0010] Preferably, the output shaft of the directional motor is fixedly connected to a rotating rod via a coupling. The rotating rod passes through the inner wall of the upper support, and one end of the rotating rod is fixedly connected to the outer wall.

[0011] Preferably, the locking assembly includes a side connecting support plate fixedly connected to the upper support, a rotating rod being movably connected to the inner wall of the side connecting support plate, a crank rod being fixedly connected to the outer wall of the rotating rod, and a pin being fixedly connected to one end of the crank rod.

[0012] The rotating rod passes through the inner wall of the upper support, and one end of the rotating rod is fixedly connected to the outer wall of the switch cabinet body.

[0013] Preferably, the outer wall of the pin penetrates the inner wall of the locking hole and is inserted into the corresponding insertion hole.

[0014] Preferably, the upper limit assembly includes a telescopic connector fixedly connected to the top of the switch cabinet body, one end of the telescopic connector being fixedly connected to a sliding collar, and a rope being inserted through the inner wall of the sliding collar;

[0015] The telescopic connector includes a screw and a cylinder that are threaded together.

[0016] Compared with the prior art, the embodiments of this application have the following main advantages:

[0017] Through the coordinated use of the base assembly, ground rail, directional motor, and locking assembly, a highly efficient, precise, and automated system for moving, directional, and fixing switchgear is formed. Its core benefits are reflected in three aspects: convenient mobility and precise positioning, safe directional adjustment and automatic locking, and multi-dimensional stable support. Firstly, convenient mobility and precise positioning: The ground rail provides a preset movement path for the switchgear. The bottom slide of the base assembly and the protruding part on the top of the ground rail engage and slide together, allowing the heavy switchgear body to easily slide along the rail to the approximate target position, greatly saving manpower and time. When precise positioning is required, the pin of the locking assembly can be inserted into the locking hole of the bottom slide and the insertion hole of the ground rail, firmly locking the entire device at the designated point, preventing accidental sliding and ensuring positioning accuracy. Secondly, safe directional adjustment and automatic locking. When internal inspection or maintenance of the switchgear is required, the directional motor can drive the switchgear body to rotate controllably relative to the base, turning it so that its front faces the maintenance personnel, greatly improving operational convenience and safety. This process is motor-driven, avoiding the risks associated with manual prying. Crucially, after maintenance, when the directional motor drives the switchgear back to a vertical position, it automatically activates the locking mechanism: a rotating rod fixed to the outer wall of the switchgear drives a crank rod, ultimately causing the pin to accurately insert into the hole in the ground rail, achieving automatic locking. This electromechanical integration design not only eliminates the need for manual locking but also ensures timely and reliable locking, effectively preventing safety hazards caused by forgetting to lock. Finally, multi-dimensional stable support is provided. The upper support of the base assembly itself provides bottom support and leveling for the switchgear body through multiple lower support hydraulic cylinders and support balls, while the side-limiting hydraulic cylinders of the side limiters can push the side limit plates to clamp the switchgear from the side, effectively suppressing horizontal swaying. The locking components secure the bottom, creating a comprehensive constraint from the bottom to the sides, ensuring the switchgear's ultimate stability during operation.

[0018] The upper limit assembly provides crucial top stability, effectively preventing the switchgear from tipping over due to internal operation, external vibration, or accidental collisions. It complements the bottom fixing system, forming a complete three-dimensional fixing solution. The assembly is ingeniously and practically designed. Its core consists of an adjustable telescopic connector and a rope with a sliding collar. The telescopic connector allows for flexible adjustment of the overall length of the upper limit assembly based on the specific height and location of the ceiling or wall, offering high adaptability. The rope, after passing through the sliding collar, is fixed to a sturdy anchor point above. Tensioning the rope creates a downward pull; this design creates a two-way restraint. When the switchgear tends to tilt forward or backward, the tensioned rope immediately exerts a counter-pulling force on the top of the switchgear through the sliding collar and telescopic connector, "pulling" it back to a vertical position, acting like a safety rope. This top restraint is particularly crucial for preventing tipping, especially for taller or higher-center-of-gravity switchgear. Simultaneously, the rigid connection of the telescopic connector provides additional lateral support points, further enhancing overall rigidity. Together with the fixing points formed by the locking components and side limiting components at the bottom, the upper limit component achieves three-dimensional fixation from the ground to the top, which greatly improves the safety and stability of the equipment under long-term operation and various working conditions, and provides a strong guarantee for the reliable operation of the power system. Attached Figure Description

[0019] Figure 1 This is the front view of this utility model;

[0020] Figure 2 This is a schematic diagram of the base assembly structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the side limiting component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the locking component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the upper limit component structure of this utility model.

[0024] In the diagram: 1. Switch cabinet body; 2. Base assembly; 201. Bottom slide; 202. Upper support; 203. Side limiting component; 2031. Side limiting plate; 2032. Side telescopic hydraulic cylinder; 204. Lower support hydraulic cylinder; 205. Support ball block; 3. Locking assembly; 301. Side connecting plate; 302. Rotating rod; 303. Crank rod; 304. Pin; 4. Upper limit assembly; 401. Rope; 402. Sliding collar; 403. Telescopic connector; 5. Directional motor; 6. Ground rail. Detailed Implementation

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] This utility model embodiment provides a fixed high-voltage switchgear, including a switchgear body 1: a base assembly 2 is provided at the bottom of the switchgear body 1, a locking assembly 3 is provided on the outer wall of the base assembly 2, a ground rail 6 is provided at the bottom of the base assembly 2, a directional motor 5 is provided on the outer wall of the base assembly 2, and an upper limit assembly 4 is provided at the top of the switchgear body 1.

[0028] The base assembly 2 includes a bottom slide 201, an upper support 202 is fixedly connected to the top of the bottom slide 201, a plurality of side limiting members 203 are fixedly connected to the front and rear sides of the upper support 202, a plurality of lower support hydraulic cylinders 204 are fixedly connected to the inner wall of the upper support 202, and a support ball block 205 is fixedly connected to the top of the lower support hydraulic cylinder 204.

[0029] The top protrusion of the ground rail 6 and the connection part with the bottom slide 201 are provided with multiple insertion holes, and the multiple insertion holes are equally spaced.

[0030] The bottom inner wall of the bottom slide 201 is slidably connected to the top protrusion of the ground rail 6, and the outer wall of the bottom slide 201 is provided with a locking hole for use with the insertion hole.

[0031] The side limiting component 203 includes a side telescopic hydraulic cylinder 2032 fixedly connected to the outer wall of the upper support 202. One end of the side telescopic hydraulic cylinder 2032 is fixedly connected to a side limiting plate 2031. The outer wall of the side limiting plate 2031 is in close contact with the outer wall of the switch cabinet body 1.

[0032] The output shaft of the directional motor 5 is fixedly connected to a rotating rod via a coupling. The rotating rod passes through the inner wall of the upper support 202, and one end of the rotating rod is fixedly connected to the outer wall.

[0033] The locking assembly 3 includes a side connecting support plate 301 fixedly connected to the upper support 202. The inner wall of the side connecting support plate 301 is movably connected to a rotating rod 302. The outer wall of the rotating rod 302 is fixedly connected to a crank rod 303. One end of the crank rod 303 is fixedly connected to a pin 304.

[0034] The rotating rod 302 passes through the inner wall of the upper support 202, and one end of the rotating rod 302 is fixedly connected to the outer wall of the switch cabinet body 1.

[0035] The outer wall of the pin 304 penetrates the inner wall of the locking hole and is inserted into the corresponding socket.

[0036] It should be noted that existing high-voltage switchgear is usually fixed after installation. Since the switchgear is usually large, it is troublesome to move and transport it. Therefore, adjusting the position during the installation process is time-consuming and labor-intensive, resulting in low installation efficiency. Furthermore, if it is necessary to move or adjust the position later, it is also quite troublesome.

[0037] Specifically, in this embodiment, the solution mainly utilizes the setup and coordination of the switch cabinet body 1, base assembly 2, ground rail 6, directional motor 5, and locking assembly 3. During use: Workflow

[0038] 1. Initial Installation Preparation

[0039] Ground rail installation: First, fix the ground rail 6 in the predetermined position, such as the power distribution room, and ensure that the sockets on the top of the ground rail are evenly distributed and aligned;

[0040] Base assembly 2 in place: Place the bottom slide 201 of the base assembly 2 on the ground rail 6, so that the bottom of the bottom slide 201 fits with the protruding part of the top of the ground rail 6, allowing the bottom slide 201 to slide along the ground rail;

[0041] 2. Placement of the main switch cabinet

[0042] Hoisting the switchgear: Use lifting equipment to hoist the main body 1 of the switchgear onto the upper support 202 of the base assembly 2;

[0043] Initial support: Activate the lower support hydraulic cylinder 204 to raise the support ball block 205 and contact the bottom of the switch cabinet body 1, providing temporary support and balance;

[0044] 3. Moving and coarsely adjusting the position

[0045] Sliding adjustment: The switchgear body 1, together with the base assembly 2, can be manually or with external force pushed along the ground rail 6 to move the switchgear to the approximate target position. Since the bottom slide 201 is slidably connected to the ground rail 6, movement is effortless.

[0046] Check alignment: Ensure that the main body of the switch cabinet 1 maintains a safe distance from surrounding equipment or walls;

[0047] 4. Fine-tuning direction and locking

[0048] When it is necessary to inspect the inside of the switch cabinet body 1: start the directional motor 5, the motor output shaft drives the switch cabinet body 1 to rotate forward through the rotating rod. At this time, control the lower support hydraulic cylinder 204 to adjust the position of the support ball block 205, allowing the switch cabinet body 1 to rotate, adjust the orientation of the switch cabinet to the required angle, and carry out the inspection and maintenance of the switch cabinet body 1.

[0049] After maintenance: Start the directional motor 5. The motor output shaft drives the switch cabinet body 1 to rotate to the rear through the rotating rod. The rotating rod 302 fixed on the outer wall of the switch cabinet body 1 drives the crank rod 303 to move. When the switch cabinet body 1 is in a vertical position, the pin 304 moves downward and inserts into the locking hole of the bottom slide 201 and the insertion hole of the ground rail 6 to achieve automatic locking and ensure that the switch cabinet position is fixed.

[0050] Lateral limiting: Activate the side extension hydraulic cylinder 2032 of the side limiting component 203 to push the side limiting plate 2031 to move inward and fit against the outer wall of the switch cabinet body 1, clamping the switch cabinet body 1 from the side to prevent the switch cabinet body 1 from moving horizontally or shaking.

[0051] 5. Fixed upper limit

[0052] Top stabilization: Adjust the upper limit assembly 4: Telescopic connector 403 can be telescopically adjusted in length; pass the rope 401 through the sliding collar 402 and fix it to the ceiling or wall anchor point; adjust the length of the telescopic connector 403 to tension the rope 401, provide top support and prevent tipping;

[0053] 6. Final inspection and commissioning

[0054] Full inspection: Verify that all components are secure, including locking components, side stops, and upper stop components;

[0055] Functional testing: Conduct electrical function tests on the high-voltage switchgear to ensure normal operation;

[0056] Put into use: The switch cabinet is now fixed and ready for connection to the power system.

[0057] In this embodiment, the base assembly 2, ground rail 6, directional motor 5, and locking assembly 3 work together to form a highly efficient, precise, and automated switchgear movement, directional adjustment, and fixing system. Its core benefits are reflected in three aspects: convenient mobility and precise positioning, safe directional adjustment and automatic locking, and multi-dimensional stable support. First, convenient mobility and precise positioning. The ground rail 6 provides a preset movement path for the switchgear. The bottom slide 201 of the base assembly 2 and the protruding part on the top of the ground rail 6 are fitted and slidably connected, allowing the heavy switchgear body 1 to easily slide along the rail to the approximate target position, greatly saving manpower and time. When precise positioning is required, the pin 304 of the locking assembly 3 can be inserted into the locking hole of the bottom slide 201 and the insertion hole of the ground rail 6, firmly locking the entire device at the designated point, preventing accidental sliding, and ensuring positioning accuracy. Second, safe directional adjustment and automatic locking. When internal inspection or maintenance of the switchgear body 1 is required, the directional motor 5 can drive the switchgear body 1 to rotate controllably relative to the base, turning it so that its front faces the maintenance personnel, greatly improving operational convenience and safety. This process is driven by a motor, avoiding the risks associated with manual prying. Crucially, after maintenance, when the directional motor 5 drives the switchgear back to a vertical position, it will automatically activate the locking component 3: the rotating rod 302 fixed to the outer wall of the switchgear drives the crank rod 303 to move, ultimately causing the pin 304 to accurately insert into the socket of the ground rail 6, achieving automatic locking. This electromechanical integrated design not only eliminates the need for manual locking but also ensures timely and reliable locking, effectively preventing safety hazards caused by forgetting to lock; finally, it provides multi-dimensional stable support. The upper support 202 of the base assembly 2 provides bottom support and leveling for the switchgear body 1 through multiple lower support hydraulic cylinders 204 and support balls 205. Meanwhile, the side extension hydraulic cylinder 2032 of the side limiting component 203 can push the side limiting plate 2031 to clamp the switchgear from the side, effectively suppressing horizontal swaying. Combined with the bottom fixing of the locking assembly 3, a comprehensive constraint is formed from the bottom to the side, jointly ensuring the ultimate stability of the switchgear during operation.

[0058] In a further preferred embodiment of the present invention, the upper limit component 4 includes a telescopic connector 403 fixedly connected to the top of the switch cabinet body 1. One end of the telescopic connector 403 is fixedly connected to a sliding collar 402, and a rope 401 is inserted through the inner wall of the sliding collar 402.

[0059] The telescopic connector 403 includes a screw and a cylinder that are threaded together.

[0060] In this embodiment, the upper limit component 4 provides crucial top stability, effectively preventing the switchgear from tipping over due to internal operation, external vibration, or accidental collisions. It complements the bottom fixing system, forming a complete three-dimensional fixing solution. The component's design is ingenious and practical. Its core includes an adjustable telescopic connector 403 and a rope 401 with a sliding collar 402. The telescopic connector 403 allows for flexible adjustment of the overall length of the upper limit component 4 based on the specific height and location of the ceiling or wall, offering high adaptability. The rope 401 passes through the sliding collar 402 and is fixed to a sturdy anchor point above. Tensioning the rope creates a downward pull; this design creates a two-way constraint. When the switchgear tends to tilt forward or backward, the tensioned rope 401 immediately exerts a reverse pull on the top of the switchgear through the sliding collar 402 and the telescopic connector 403, "pulling" it back to a vertical position, acting like a safety rope. Especially for switchgear that is tall or has a high center of gravity, this top restraint is crucial for preventing tipping. Meanwhile, the rigid connection of the telescopic connector 403 provides additional lateral support points, further enhancing overall rigidity. Together with the fixing points formed at the bottom by the locking assembly 3 and the side limiting members 203, the upper limit assembly 4 achieves three-dimensional fixation from the ground to the top, greatly improving the safety and stability of the equipment during long-term operation and under various working conditions, providing strong support for the reliable operation of the power system.

[0061] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0062] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0063] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0064] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A fixed high-voltage switchgear, characterized in that, The switch cabinet body (1) includes a base assembly (2) at the bottom of the switch cabinet body (1), a locking assembly (3) on the outer wall of the base assembly (2), a ground rail (6) at the bottom of the base assembly (2), a directional motor (5) on the outer wall of the base assembly (2), and an upper limit assembly (4) on the top of the switch cabinet body (1). The base assembly (2) includes a bottom slide (201), an upper support (202) is fixedly connected to the top of the bottom slide (201), a plurality of side limiting members (203) are fixedly connected to the front and rear sides of the upper support (202), a plurality of lower support hydraulic cylinders (204) are fixedly connected to the inner wall of the upper support (202), and a support ball (205) is fixedly connected to the top of the lower support hydraulic cylinder (204).

2. A fixed high-voltage switchgear as described in claim 1, characterized in that, The top protrusion of the ground rail (6) and the part connecting with the bottom slide (201) are provided with multiple insertion holes, and the multiple insertion holes are equally spaced.

3. A fixed high-voltage switchgear as described in claim 2, characterized in that, The bottom inner wall of the bottom slide (201) is slidably connected to the top protrusion of the ground rail (6), and the outer wall of the bottom slide (201) is provided with a locking hole for use with the insertion hole.

4. A fixed high-voltage switchgear as described in claim 1, characterized in that, The side limiting component (203) includes a side telescopic hydraulic cylinder (2032) fixedly connected to the outer wall of the upper support (202). One end of the side telescopic hydraulic cylinder (2032) is fixedly connected to a side limiting plate (2031). The outer wall of the side limiting plate (2031) is in close contact with the outer wall of the switch cabinet body (1).

5. A fixed high-voltage switchgear as described in claim 1, characterized in that, The output shaft of the directional motor (5) is fixedly connected to a rotating rod via a coupling. The rotating rod passes through the inner wall of the upper support (202), and one end of the rotating rod is fixedly connected to the outer wall.

6. A fixed high-voltage switchgear as described in claim 1, characterized in that, The locking assembly (3) includes a side connecting plate (301) fixedly connected to the upper support (202), a rotating rod (302) is movably connected to the inner wall of the side connecting plate (301), a crank rod (303) is fixedly connected to the outer wall of the rotating rod (302), and a pin (304) is fixedly connected to one end of the crank rod (303). The rotating rod (302) penetrates the inner wall of the upper support (202), and one end of the rotating rod (302) is fixedly connected to the outer wall of the switch cabinet body (1).

7. A fixed high-voltage switchgear as described in claim 6, characterized in that, The outer wall of the pin (304) penetrates the inner wall of the locking hole and is inserted into the corresponding insertion hole.

8. A fixed high-voltage switchgear as described in claim 1, characterized in that, The upper limit assembly (4) includes a telescopic connector (403) fixedly connected to the top of the switch cabinet body (1). One end of the telescopic connector (403) is fixedly connected to a sliding collar (402), and a rope (401) is inserted through the inner wall of the sliding collar (402). The telescopic connector (403) includes a screw and a cylinder that are threaded together.