A fixed guard for a high voltage cabinet
By using an X-shaped folding fence and a plug-in locking structure, the problems of non-adjustable size and inconvenient installation and disassembly of high-voltage cabinet protection devices are solved, enabling flexible adjustment of the protection area and efficient installation and disassembly, facilitating repeated use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI FUYUAN INTELLIGENT ELECTRIC CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-26
AI Technical Summary
The existing high-voltage cabinet protection devices have non-adjustable dimensions, are inconvenient to install and disassemble, and have poor applicability and reusability.
It adopts an X-shaped folding fence structure and a plug-in locking structure. The fence length is adjustable, and quick installation and disassembly are achieved through a combination of plug blocks, guide support shafts, snap-fit pins and helical springs.
It enables flexible adjustment of the protected area, improves the versatility of the device and the efficiency of installation and disassembly, and facilitates repeated use.
Smart Images

Figure CN224418256U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-voltage cabinet protection technology, specifically a fixed protection device for high-voltage cabinets. Background Technology
[0002] High-voltage switchgear, as a critical piece of equipment in power systems, is widely used in substations, distribution rooms, and other locations. It typically contains high-voltage electrical components, posing a significant risk of electric shock. To ensure the safety of operators and surrounding equipment, fixed protective devices, such as protective fences or barriers, are usually installed around the high-voltage switchgear to restrict unauthorized personnel from entering the hazardous area and prevent accidental contact with high-voltage components.
[0003] Currently, traditional fixed protective fences are mostly fixed to the supporting posts by welding or bolting, which has the following significant drawbacks:
[0004] 1. Size is not adjustable: Most existing fences are fixed designs, which cannot flexibly adjust the area of the protected area according to the needs of the site. They are difficult to adapt to high-voltage cabinets of different sizes or temporary protection needs, and have poor applicability.
[0005] 2. Inconvenient installation and disassembly: Welding or bolting connections require special tools and a long construction time. Especially when equipment is being repaired or fences need to be temporarily removed, the operation is cumbersome and may damage the connecting parts, affecting reusability.
[0006] Therefore, we propose a fixed protective device for high-voltage cabinets. Utility Model Content
[0007] (a) Technical problems to be solved
[0008] To address the shortcomings of existing technologies, this utility model provides a fixed protective device for high-voltage cabinets, which facilitates adjustment of the protected area, improves applicability, and is easy to assemble and disassemble, effectively solving the problems in the background technology.
[0009] (II) Technical Solution
[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a fixed protective device for a high-voltage cabinet, comprising columns, a fixed base plate fixedly installed on the lower outer surface of the columns, four sets of columns, an X-shaped folding fence between the four sets of columns, and four sets of X-shaped folding fences. Locking structures are fixedly installed at both the upper and lower ends of the outer surface of the fixed base plate near the X-shaped folding fence. The locking structure includes a plug, a first cylindrical groove, a guide support shaft, a locking pin, a second cylindrical groove, and a helical spring. The X-shaped folding fence includes a folding fence body and connecting rods. Two sets of connecting rods are used in each set of X-shaped folding fences. The folding fence body is connected between the two sets of connecting rods. Slots are provided at both the upper and lower ends of the outer surface of the connecting rod away from the folding fence body. A limit locking hole is provided on one side of the slot, and the limit locking hole extends through to the outer wall of the connecting rod.
[0011] Preferably, in the locking structure, one outer surface of the insert block is fixedly connected to the column, the first cylindrical groove is formed on one end of the outer surface of the insert block, the guide support shaft is located in the first cylindrical groove, and one end of the guide support shaft is fixedly connected to the middle of one end of the first cylindrical groove.
[0012] Preferably, the second cylindrical groove is formed on the outer surface of one end of the locking pin, the helical spring is located in the second cylindrical groove, one end of the outer surface of the helical spring is fixedly connected to one end of the second cylindrical groove, and the other end of the outer surface of the helical spring is fixedly connected to one end of the outer surface of the guide support shaft.
[0013] Preferably, the outer wall of the insert block is inserted into the slot, and the outer wall of one end of the locking pin is locked into the limiting locking hole.
[0014] Preferably, the outer wall of the snap-fit pin is slidably connected to the first cylindrical groove, and the snap-fit pin is slidably connected to the outer wall of the guide support shaft through the second cylindrical groove.
[0015] Preferably, one end of the guide support shaft is elastically connected to one end of the second cylindrical groove via a helical spring.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, this utility model provides a fixing and protective device for high-voltage cabinets, which has the following beneficial effects:
[0018] 1. This fixed protective device for high-voltage cabinets adopts an X-shaped folding fence structure, and the length of the fence can be flexibly adjusted according to actual needs, thereby adapting to high-voltage cabinets of different sizes or temporary protection needs, effectively improving the versatility and adaptability of the device.
[0019] 2. This fixed protective device for high-voltage cabinets adopts a plug-in locking structure. Simply align the connecting rod with the plug block of the column and insert it. The locking pin will automatically lock under the action of the spring. No additional tools or complicated operations are required, which greatly improves the efficiency of installation and disassembly and facilitates transportation, storage and reuse. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a fixed protective device for high-voltage cabinets according to the present invention.
[0021] Figure 2 This is a schematic diagram of the structure of an X-shaped folding fence in a fixed protective device for high-voltage cabinets according to this utility model.
[0022] Figure 3 This is a schematic diagram of the structure of the column in a fixed protective device for high-voltage cabinets according to the present invention.
[0023] Figure 4 This is a top cross-sectional view of the locking structure in a fixed protective device for high-voltage cabinets according to this utility model.
[0024] In the diagram: 1. Post; 2. Fixed base plate; 3. X-shaped folding fence; 4. Folding fence body; 5. Connecting rod; 6. Slot; 7. Limiting locking hole; 8. Locking structure; 9. Insert block; 10. First cylindrical groove; 11. Guide support shaft; 12. Snap-fit pin; 13. Second cylindrical groove; 14. Helical spring. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] This embodiment is a fixed protective device for high-voltage cabinets.
[0027] like Figure 1-4 As shown, the system includes four sets of columns 1, with a fixed base plate 2 fixedly installed on the lower outer surface of the column 1. An X-shaped folding fence 3 is provided between the four sets of columns 1. The fixed base plate 2 has locking structures 8 fixedly installed at both the upper and lower ends of its outer surface near the X-shaped folding fence 3. The locking structure 8 includes a plug 9, a first cylindrical groove 10, a guide support shaft 11, a locking pin 12, a second cylindrical groove 13, and a coil spring 14. The X-shaped folding fence 3 includes a folding fence body 4 and connecting rods 5. Each set of X-shaped folding fence 3 has two sets of connecting rods 5. The folding fence body 4 is connected between the two sets of connecting rods 5. The upper and lower ends of the outer surface of the connecting rod 5 away from the folding fence body 4 have slots 6. A limit locking hole 7 is provided on one side of the slot 6, extending through to the outer wall of the connecting rod 5.
[0028] In the locking structure 8, one outer surface of the insert block 9 is fixedly connected to the column 1. A first cylindrical groove 10 is formed on the outer surface of one end of the insert block 9. A guide support shaft 11 is located in the first cylindrical groove 10, and one end of the guide support shaft 11 is fixedly connected to the middle of one end of the first cylindrical groove 10. A second cylindrical groove 13 is formed on the outer surface of one end of the locking pin 12. A coil spring 14 is located in the second cylindrical groove 13. One outer surface of the coil spring 14 is fixedly connected to one end of the second cylindrical groove 13, and the other outer surface of the coil spring 14 is fixedly connected to one end of the guide support shaft 11. The outer wall of the insert block 9 is inserted into the slot 6, and the outer wall of one end of the locking pin 12 is locked into the limiting locking hole 7. The outer wall of the locking pin 12 is slidably connected to the first cylindrical groove 10, and the locking pin 12 is slidably connected to the outer wall of the guide support shaft 11 through the second cylindrical groove 13. One outer surface of the guide support shaft 11 is elastically connected to one end of the second cylindrical groove 13 through the coil spring 14.
[0029] It should be noted that this utility model is a fixed protective device for high-voltage cabinets. The connection between the folding fence body 4 and the connecting rod 5 is prior art, and the principle of the extension and retraction of the folding fence body 4 is also prior art, which can be effectively known to those skilled in the art, and will not be elaborated further. Through the four sets of X-shaped folding fences 3, the length of the X-shaped folding fences 3 can be adjusted, thus adjusting the area of the protected zone. When connecting the X-shaped folding fence 3 to the column 1, the connecting rod 5 is installed on one side of the column 1, so that one end of the locking structure 8 is inserted into the slot 6. When the locking pin 12 abuts against one end of the slot 6, the locking pin 12 is squeezed, and the locking pin 12 moves along the first cylindrical groove 10. The locking pin 12 slides along the outer wall of the guide support shaft 11 through the second cylindrical groove 13, so that one end of the locking pin 12 enters the first cylindrical groove 10. Continue to insert the plug 9 into the slot 6. When the locking pin 12 reaches one end of the limiting locking hole 7, the reaction force of the coil spring 14 drives one end of the locking pin 12 to be locked into the limiting locking hole 7, realizing the assembly of the X-shaped folding fence 3 and making it easy to disassemble. When disassembling, it is only necessary to squeeze the locking pin 12 locked in the limiting locking hole 7, which is easy to operate.
[0030] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A fixing and protective device for a high-voltage cabinet, comprising a column (1), wherein a fixing base plate (2) is fixedly installed on the lower outer surface of the column (1), characterized in that: The number of the columns (1) is four sets, and an X-shaped folding fence (3) is set between the four sets of columns (1). The number of the X-shaped folding fence (3) is four sets. The upper and lower ends of the outer surface of the fixed base plate (2) near the X-shaped folding fence (3) are fixedly installed with locking structures (8). The locking structure (8) includes a plug (9), a first cylindrical groove (10), a guide support shaft (11), a snap pin (12), a second cylindrical groove (13), and a helical spring (14). The X-type folding fence (3) includes a folding fence body (4) and connecting rods (5). There are two sets of connecting rods (5) in one set of the X-type folding fence (3). The folding fence body (4) is connected between the two sets of connecting rods (5). The upper and lower ends of the outer surface of the connecting rod (5) away from the folding fence body (4) are provided with slots (6). A limit locking hole (7) is provided on one side of the slot (6). The limit locking hole (7) extends through to the outer wall of the connecting rod (5).
2. The fixing and protective device for a high-voltage cabinet according to claim 1, characterized in that: The outer surface of one side of the insert (9) in the locking structure (8) is fixedly connected to the column (1), the first cylindrical groove (10) is opened on the outer surface of one end of the insert (9), the guide support shaft (11) is located in the first cylindrical groove (10), and one end of the guide support shaft (11) is fixedly connected to the middle of one end of the first cylindrical groove (10).
3. A fixing and protective device for a high-voltage cabinet according to claim 2, characterized in that: The second cylindrical groove (13) is opened on the outer surface of one end of the snap pin (12). The helical spring (14) is located in the second cylindrical groove (13). The outer surface of one end of the helical spring (14) is fixedly connected to one end of the second cylindrical groove (13). The outer surface of the other end of the helical spring (14) is fixedly connected to the outer surface of one end of the guide support shaft (11).
4. A fixing and protective device for a high-voltage cabinet according to claim 3, characterized in that: The outer wall of the insert (9) is inserted into the slot (6), and the outer wall of one end of the locking pin (12) is locked into the limiting locking hole (7).
5. A fixing and protective device for a high-voltage cabinet according to claim 4, characterized in that: The outer wall of the snap-fit pin (12) is slidably connected to the first cylindrical groove (10), and the snap-fit pin (12) is slidably connected to the outer wall of the guide support shaft (11) through the second cylindrical groove (13).
6. A fixing and protective device for a high-voltage cabinet according to claim 5, characterized in that: One end of the guide support shaft (11) is elastically connected to one end of the second cylindrical groove (13) via a helical spring (14).