Foldable high-voltage electrical equipment shielding cover

Abstract

The application discloses a foldable high-voltage electrical equipment shielding cover and relates to the technical field of shielding covers. The foldable high-voltage electrical equipment shielding cover comprises a fixed plate and a foldable shielding part. The fixed plate can be placed on a high-voltage electrical equipment. The foldable shielding part is slidably arranged at the bottom end of the fixed plate. The foldable shielding part can be folded and unfolded and shield the high-voltage electrical equipment. The foldable high-voltage electrical equipment shielding cover has the effect of improving the efficiency of installing the high-voltage electrical equipment shielding cover.

Description

Technical Field

[0001] This application relates to the field of shielding technology, and in particular to a foldable shielding cover for high-voltage electrical equipment. Background Technology

[0002] High-voltage electrical equipment is widely used in power systems. Because high-voltage electrical equipment generates strong electromagnetic fields due to high voltage and high current during operation, and these strong electromagnetic fields may interfere with surrounding equipment, high-voltage electrical equipment needs to be equipped with shielding covers to reduce electromagnetic interference.

[0003] One type of shielding cover for high-voltage electrical equipment is a rectangular metal box structure. When shielding high-voltage electrical equipment is required, the rectangular metal box structure can be placed over the high-voltage electrical equipment to achieve the shielding effect.

[0004] When using the above methods to shield high-voltage electrical equipment, due to the different sizes of the high-voltage electrical equipment, when it is necessary to use a metal rectangular box shield to shield larger high-voltage electrical equipment, a larger shield is required. However, the larger shield is bulky and difficult to transport and install, which leads to a significant reduction in the efficiency of shield installation. Utility Model Content

[0005] To improve the efficiency of installing shielding covers for high-voltage electrical equipment, this application provides a foldable shielding cover for high-voltage electrical equipment.

[0006] This application provides a foldable shielding cover for high-voltage electrical equipment, employing the following technical solution: A foldable high-voltage electrical equipment shielding cover, comprising: A mounting plate, which can be placed on high-voltage electrical equipment; A folding shield is slidably disposed at the bottom end of the fixed plate. The folding shield can be folded and unfolded to shield high-voltage electrical equipment.

[0007] By adopting the above technical solution, when shielding high-voltage electrical equipment is required, the fixing plate is placed on the high-voltage electrical equipment, and the folding shielding component is activated. After activation, the folding shielding component unfolds towards the bottom of the high-voltage electrical equipment until it covers the entire equipment. Once the folding shielding component covers the high-voltage electrical equipment, it effectively shields the strong electromagnetic field generated by the high voltage and high current. This method of shielding high-voltage electrical equipment avoids the need for handling and installing shielding covers, thus significantly improving the efficiency of shielding high-voltage electrical equipment.

[0008] Optionally, the folded shielding includes: A hydraulic telescopic rod, wherein two hydraulic telescopic rods are arranged at intervals along the fixed plate, and each hydraulic telescopic rod is fixedly installed inside the fixed plate; A connecting rod, one end of which is fixedly connected to the bottom end of the fixing plate; The first shielding cover is fixedly connected to the end of the two connecting rods away from the fixed plate. The side wall of the first shielding cover is vertically provided with a first limiting groove, and two first limiting grooves are provided at intervals along the side wall of the first shielding cover. The second shielding cover is slidably disposed at the bottom end of the first shielding cover. The second shielding cover has a second limiting groove vertically disposed on its side wall. Two second limiting grooves are disposed at intervals along the side wall of the second shielding cover. The third shielding cover is slidably disposed at the bottom end of the second shielding cover; The linkage rods are arranged in two at intervals along the hydraulic telescopic rods. One end of each linkage rod is fixedly connected to the output shaft of the corresponding hydraulic telescopic rod, and the other end of each linkage rod is fixedly connected to the side wall of the third shielding cover. Two first limiting plates are provided at intervals along the side wall of the second shielding cover. Each first limiting plate is fixedly connected to the side wall of the second shielding cover, and each first limiting plate is embedded in the first limiting groove. The second limiting plate is provided at intervals along the side wall of the third shield. Each second limiting plate is fixedly connected to the side wall of the third shield, and each second limiting plate is embedded in the second limiting groove.

[0009] By adopting the above technical solution, when shielding high-voltage electrical equipment is required, a fixing plate is placed on the high-voltage electrical equipment, and the first shielding cover covers the high-voltage electrical equipment. After the fixing plate is placed, the extension ends of the two hydraulic telescopic rods are controlled to extend towards the bottom of the high-voltage electrical equipment. After the extension ends of the two hydraulic telescopic rods move, the linkage rod moves synchronously. After the linkage rod moves, the third shielding cover moves towards the bottom of the high-voltage electrical equipment. At the same time as the third shielding cover moves, the second limiting plate moves. After the second limiting plate moves a certain distance, it abuts against the inner wall of the second limiting groove. Due to the continuous movement of the third shielding cover, the second limiting plate applies vertical downward pressure to the second limiting groove and moves the second shielding cover towards the bottom of the high-voltage electrical equipment until the first limiting block abuts against the inner wall of the first limiting groove. At this time, the extension ends of the hydraulic telescopic rods can be controlled to stop moving. At this time, the second and third shielding covers have been fully deployed. After the second and third shielding covers are deployed, the first, second, and third shielding covers can completely wrap the high-voltage electrical equipment, thus completing the shielding treatment of the high-voltage electrical equipment. By shielding high-voltage electrical equipment in the above manner, the need to transport and install large rectangular metal shielding enclosures is avoided, thereby effectively improving the efficiency of shielding high-voltage electrical equipment.

[0010] Optionally, a buffer pad is fixedly provided on the side wall of each of the first limiting groove and the second limiting groove.

[0011] By adopting the above technical solution, the buffer pad not only ensures that when the third shielding cover moves the second limiting plate to the bottom of the second limiting groove and applies vertical downward pressure to the second shielding cover, the buffer pad can absorb the pressure between the second limiting plate and the second shielding cover, preventing the second limiting plate from deforming and being damaged due to excessive reaction force from the second shielding cover, but also ensures that when the second shielding cover moves the first limiting plate to the bottom of the first limiting groove, the buffer pad can absorb the pressure between the first limiting plate and the first shielding cover, preventing the first limiting plate from deforming and being damaged due to excessive impact force. The buffer pad effectively extends the service life of the first and second limiting plates.

[0012] Optionally, each of the first limiting plate and the second limiting plate is horizontally provided with a rolling groove, and a roller is rotatably provided in each rolling groove, and the roller contacts the bottom of the corresponding first limiting groove and the second limiting groove.

[0013] By adopting the above technical solution, during the movement of the first limiting plate and the second limiting plate along the first limiting groove and the second limiting groove, the rollers can convert the sliding friction between the first limiting plate and the first limiting groove and the second limiting plate and the second limiting groove into rolling friction, thereby reducing the frictional resistance of the first limiting plate and the second limiting plate during the movement, and thus improving the flexibility of the first limiting plate and the second limiting plate during the movement.

[0014] Optionally, a grounding terminal is fixedly provided on the side wall of the fixing plate.

[0015] By adopting the above technical solution, after the high-voltage electrical equipment is encased and covered by the first, second, and third shielding covers, the grounding terminal can be connected to the ground via a wire. The grounding terminal ensures that the charges generated by electromagnetic induction and static electricity accumulation during the shielding process of the high-voltage electrical equipment are discharged to the ground, preventing discharge phenomena caused by the accumulation of charges to a certain level, thereby effectively improving safety when shielding high-voltage electrical equipment.

[0016] Optionally, a handle is fixedly provided at the top of the fixing plate.

[0017] By adopting the above technical solution, when shielding of high-voltage electrical equipment is required, the fixing plate can be moved by the handle and moved above the high-voltage electrical equipment. This avoids the situation where the fixing plate is inconvenient to move due to the lack of a grip when it needs to be moved, thus effectively improving the convenience of moving the fixing plate.

[0018] Optionally, two connecting rods are provided at intervals along the fixing plate, and each connecting rod is fixedly connected to the fixing plate and the first shielding cover.

[0019] By adopting the above technical solution, the setting of the two connecting plates can ensure that the connection between the first shielding cover and the fixed plate is more stable, and avoid the situation where the first shielding cover is subjected to excessive impact when the second shielding cover moves the first limiting plate to the bottom of the first limiting groove, which would cause the first shielding cover to fall off the fixed plate. This effectively improves the stability of the first shielding cover after it is connected to the fixed plate.

[0020] Optionally, the first shielding cover, the second shielding cover, and the third shielding cover are made of aluminum alloy.

[0021] By adopting the above technical solutions, the first, second, and third shielding covers made of aluminum alloy can not only ensure the shielding of the strong electromagnetic field generated by high-voltage electrical equipment, but also ensure that the first, second, and third shielding covers will not corrode or deform after long-term use, thereby extending the service life of the first, second, and third shielding covers.

[0022] In summary, this utility model provides a foldable high-voltage electrical equipment shielding cover, which has at least one of the following beneficial technical effects: 1. When shielding high-voltage electrical equipment is required, place the fixing plate on the equipment and activate the folding shield. Once activated, the folding shield unfolds towards the bottom of the equipment until it completely covers it. This shield effectively blocks the strong electromagnetic field generated by the high voltage and current. This method of shielding avoids the need for handling and installing shielding covers, thus significantly improving the efficiency of high-voltage equipment shielding.

[0023] 2. When shielding high-voltage electrical equipment is required, place the fixing plate on the high-voltage electrical equipment, ensuring the first shielding cover covers it. After the fixing plate is placed, control the extension ends of the two hydraulic telescopic rods to extend towards the bottom of the high-voltage electrical equipment. The movement of the extension ends of the two hydraulic telescopic rods causes the linkage rod to move synchronously. The movement of the linkage rod then causes the third shielding cover to move towards the bottom of the high-voltage electrical equipment. Simultaneously, the movement of the third shielding cover causes the second limiting plate to move. After moving a certain distance, the second limiting plate contacts the inner wall of the second limiting groove. Due to the continuous movement of the third shielding cover, the second limiting plate applies a vertically downward pressure to the second limiting groove and causes the second shielding cover to move towards the bottom of the high-voltage electrical equipment until the first limiting block contacts the inner wall of the first limiting groove. At this point, the extension ends of the hydraulic telescopic rods stop moving. The second and third shielding covers are now fully deployed. After deployment, the first, second, and third shielding covers completely enclose the high-voltage electrical equipment, thus completing the shielding process. By shielding high-voltage electrical equipment in the above manner, the need to transport and install large rectangular metal shielding enclosures is avoided, thereby effectively improving the efficiency of shielding high-voltage electrical equipment.

[0024] 3. The buffer pad not only ensures that when the third shielding cover moves the second limiting plate to the bottom of the second limiting groove and applies vertical downward pressure to the second shielding cover, the buffer pad can absorb the pressure between the second limiting plate and the second shielding cover, preventing the second limiting plate from deforming and being damaged due to excessive reaction force from the second shielding cover, but also ensures that when the second shielding cover moves the first limiting plate to the bottom of the first limiting groove, the buffer pad can absorb the pressure between the first limiting plate and the first shielding cover, preventing the first limiting plate from deforming and being damaged due to excessive impact force. The buffer pad effectively extends the service life of the first and second limiting plates. Attached Figure Description

[0025] Figure 1 A schematic diagram of the structure of a foldable high-voltage electrical equipment shield provided for an embodiment of this utility model; Figure 2 A schematic diagram of the structure of a foldable shielding folding component in a foldable high-voltage electrical equipment shielding cover provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the structure of the first limiting plate in a foldable high-voltage electrical equipment shielding cover provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the second limiting plate in a foldable high-voltage electrical equipment shielding cover provided in an embodiment of the present invention.

[0026] Explanation of the markings in the image: 1. Fixed plate; 2. Folding shield; 21. Hydraulic telescopic rod; 22. Connecting rod; 23. First shield; 24. First limiting groove; 25. Second shield; 26. Third shield; 27. Linkage rod; 28. First limiting plate; 29. ​​Second limiting plate; 291. Second limiting groove; 3. Buffer pad; 4. Rolling groove; 41. Roller; 5. Grounding end; 6. Handle. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0028] Combination Figure 1 and Figure 2 This application discloses a foldable high-voltage electrical equipment shield, including a fixed plate 1 and a foldable shield 2. The fixed plate 1 can be placed on the high-voltage electrical equipment, and the foldable shield 2 is slidably disposed at the bottom end of the fixed plate 1. The foldable shield 2 can be folded and unfolded to shield the high-voltage electrical equipment.

[0029] In this embodiment, the fixing plate 1 has a rectangular structure, and the specifications of the folding shield 2 match the specifications of the fixing plate 1. The specifications of the folding shield 2 can ensure complete coverage of the high-voltage electrical equipment.

[0030] In practical use, when shielding of high-voltage electrical equipment is required, the fixing plate 1 is placed on the high-voltage electrical equipment, and the folding shield 2 is activated. After activation, the folding shield 2 moves towards the bottom of the high-voltage electrical equipment until it completely covers the high-voltage electrical equipment. Once the folding shield 2 covers the high-voltage electrical equipment, it can shield the strong electromagnetic field generated by the high-voltage electrical equipment.

[0031] Combination Figure 2 , Figure 3 and Figure 4 In a specific embodiment, the folding shield 2 includes a hydraulic telescopic rod 21, a connecting rod 22, a first shield 23, a second shield 25, a third shield 26, a linkage rod 27, a first limiting plate 28, and a second limiting plate 29. Two hydraulic telescopic rods 21 are spaced apart along the fixed plate 1, each fixedly mounted within the fixed plate 1. One end of the connecting rod 22 is fixedly connected to the bottom end of the fixed plate 1. The first shield 23 is fixedly connected to the ends of the two connecting rods 22 away from the fixed plate 1. A first limiting groove 24 is vertically provided on the side wall of the first shield 23, with two first limiting grooves 24 spaced apart along the side wall of the first shield 23. The second shield 25 is slidably mounted on the bottom end of the first shield 23, and a second limiting groove 291 is vertically provided on the side wall of the second shield 25. Two third shields 26 are slidably disposed at the bottom end of the second shield 25, and two linkage rods 27 are slidably disposed at the bottom end of the second shield 25. Two linkage rods 27 are slidably disposed at the bottom end of the hydraulic telescopic rods 21. One end of each linkage rod 27 is fixedly connected to the output shaft of the corresponding hydraulic telescopic rod 21, and the other end of each linkage rod 27 is fixedly connected to the side wall of the third shield 26. Two first limiting plates 28 are slidably disposed at the bottom end of the second shield 25, and each first limiting plate 28 is fixedly connected to the side wall of the second shield 25 and embedded in the first limiting groove 24. Two second limiting plates 29 are slidably disposed at the bottom end of the third shield 26, and each second limiting plate 29 is fixedly connected to the side wall of the third shield 26 and embedded in the second limiting groove 291. A buffer pad 3 is fixedly disposed on the side wall of each first limiting groove 24 and second limiting groove 291. Each of the first limiting plates 28 and the second limiting plates 29 is horizontally provided with a rolling groove 4, and a roller 41 is rotatably arranged in each rolling groove 4. Two connecting rods 22 are arranged at intervals along the fixed plate 1, and each connecting rod 22 is fixedly connected to the fixed plate 1 and the first shielding cover 23. The first shielding cover 23, the second shielding cover 25, and the third shielding cover 26 are made of aluminum alloy.

[0032] In this embodiment, the hydraulic telescopic rod 21 is fixedly connected to the fixed plate 1 by bolts. The connecting rod 22 can be fixedly connected to the fixed plate 1 by integral molding or by welding. The first shielding cover 23 has a rectangular structure and is fixedly connected to the connecting rod 22 by integral molding. The first limiting groove 24 is a rectangular groove, and the first limiting plate 28 is a rectangular plate. The first limiting plate 28 can be fixedly connected to the second shielding cover 25 by integral molding or by welding; no specific limitation is made in this embodiment. The specifications of the first limiting groove 24 and the first limiting plate 28 are matched. The second shielding cover 25 has a rectangular structure, the second limiting groove 291 is a rectangular groove, and the second limiting plate 29 is a rectangular plate. The specifications of the second limiting plate 29 are matched with the specifications of the second limiting groove 291. The second limiting plate 29 can be fixedly connected to the third shielding cover 26 by integral molding or by welding; no specific limitation is made in this embodiment. The third shielding cover 26 has a rectangular structure, and the linkage rod 27 is a rectangular plate. The linkage rod 27 is integrally molded and fixedly connected to the telescopic end of the hydraulic telescopic rod 21 and the third shielding cover 26. The buffer pad 3 can be made of rubber or silicone. The buffer pad 3 is fixedly installed on the side walls of the first limiting groove 24 and the second limiting groove 291 by adhesive bonding. The rolling groove 4 is a rectangular groove, and the specifications of the roller 41 match the specifications of the rolling groove 4. The specifications of the rolling groove 4 ensure that the roller 41 can rotate within the rolling groove 4.

[0033] In practical use, when shielding of high-voltage electrical equipment is required, the fixing plate 1 is placed on the high-voltage electrical equipment, and the telescopic ends of the two hydraulic telescopic rods 21 are controlled to extend towards the bottom of the high-voltage electrical equipment. After the telescopic ends of the hydraulic telescopic rods 21 move, the linkage rod 27 moves synchronously. After the linkage rod 27 moves, the third shielding cover 26 moves towards the bottom of the high-voltage electrical equipment. After the third shielding cover 26 moves, the second limiting plate 29 and the roller 41 move along the second limiting groove 291 until the second limiting plate 29 contacts the buffer pad 3 and applies pressure to the buffer pad 3. Since the buffer pad 3 is fixedly connected to the side wall of the second limiting groove 291, the buffer pad 3 moves the second shielding cover 25 after being subjected to pressure. Moving towards the bottom of the high-voltage electrical equipment, the second shield 25 moves and drives the first limiting plate 28 and roller 41 to move along the first limiting groove 24 until the first limiting plate 28 contacts the buffer pad 3. Since the first shield 23 is fixedly connected to the fixed plate 1 through two connecting rods 22, the first shield 23 will not move under the action of the first limiting plate 28 after the first limiting plate 28 contacts the buffer pad 3. At this time, the second shield 25 and the third shield 26 are fully unfolded and completely cover the high-voltage electrical equipment. The aluminum alloy first shield 23, the second shield 25 and the third shield 26 can shield the strong electromagnetic field generated by the high-voltage electrical equipment after completely covering it. When the first limiting plate 28 and the second limiting plate 29 move along the first limiting groove 24 and the second limiting groove 291, the roller 41 can convert the sliding friction between the first limiting plate 28 and the first shielding cover 23 and the second limiting plate 29 and the second shielding cover 25 into rolling friction, thereby reducing the frictional resistance between the first limiting plate 28 and the second limiting plate 29 during the movement.

[0034] Combination Figure 1 In a specific embodiment, a grounding terminal 5 is fixedly provided on the side wall of the fixing plate 1. A handle 6 is fixedly provided on the top of the fixing plate 1.

[0035] In this embodiment, the grounding terminal 5 can be fixedly connected to the fixing plate 1 by integral molding or by welding; no specific limitation is made in this embodiment. The handle 6 is fixedly connected to the fixing plate 1 by welding.

[0036] In practical use, when shielding high-voltage electrical equipment is required, the fixing plate 1 can be placed above the high-voltage electrical equipment using the handle 6. After the first shielding cover 23, the second shielding cover 25, and the third shielding cover 26 completely enclose the high-voltage electrical equipment, the grounding terminal 5 is connected to the ground via a wire. This connection allows the charge accumulated on the fixing plate 1 after long-term use to be discharged to the ground, thus ensuring that the fixing plate 1 will not cause safety hazards due to charge accumulation after long-term use.

[0037] The principle of this embodiment is as follows: When it is necessary to shield high-voltage electrical equipment, the fixing plate 1 is placed on the high-voltage electrical equipment, and the folding shield 2 is activated. After the folding shield 2 is activated, it moves towards the bottom of the high-voltage electrical equipment until the folding shield 2 covers the entire high-voltage electrical equipment. After the folding shield 2 covers the high-voltage electrical equipment, the strong electromagnetic field generated by the high-voltage electrical equipment can be shielded.

[0038] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A foldable high-voltage electrical equipment shielding cover, characterized in that, include: Fixing plate (1), which can be placed on high-voltage electrical equipment; Folding shield (2), the folding shield (2) is slidably disposed at the bottom end of the fixed plate (1), the folding shield (2) can be folded and unfolded to shield high voltage electrical equipment.

2. The foldable high-voltage electrical equipment shielding cover according to claim 1, characterized in that, The folded shield (2) includes: Two hydraulic telescopic rods (21) are arranged at intervals along the fixed plate (1), and each hydraulic telescopic rod (21) is fixedly installed inside the fixed plate (1); A connecting rod (22), one end of which is fixedly connected to the bottom end of the fixing plate (1); The first shield (23) is fixedly connected to the end of the two connecting rods (22) away from the fixed plate (1). The side wall of the first shield (23) is vertically provided with a first limiting groove (24). There are two first limiting grooves (24) along the side wall of the first shield (23). The second shield (25) is slidably disposed at the bottom end of the first shield (23). The side wall of the second shield (25) is vertically provided with a second limiting groove (291). There are two second limiting grooves (291) spaced apart along the side wall of the second shield (25). The third shielding cover (26) is slidably disposed at the bottom end of the second shielding cover (25); Linkage rod (27), two linkage rods (27) are arranged at intervals along the hydraulic telescopic rod (21), one end of each linkage rod (27) is fixedly connected to the output shaft of the corresponding hydraulic telescopic rod (21), and the other end of each linkage rod (27) is fixedly connected to the side wall of the third shield (26); Two first limiting plates (28) are provided at intervals along the side wall of the second shield (25). Each first limiting plate (28) is fixedly connected to the side wall of the second shield (25), and each first limiting plate (28) is embedded in the first limiting groove (24). The second limiting plate (29) is provided in two at intervals along the side wall of the third shield (26). Each second limiting plate (29) is fixedly connected to the side wall of the third shield (26), and each second limiting plate (29) is embedded in the second limiting groove (291).

3. A foldable high-voltage electrical equipment shielding cover according to claim 2, characterized in that, A buffer pad (3) is fixedly provided on the side wall of each of the first limiting groove (24) and the second limiting groove (291).

4. A foldable high-voltage electrical equipment shielding cover according to claim 2, characterized in that, Each of the first limiting plate (28) and the second limiting plate (29) is provided with a horizontal rolling groove (4), and a roller (41) is rotatably provided in each of the rolling grooves (4).

5. A foldable high-voltage electrical equipment shielding cover according to claim 1, characterized in that, The fixing plate (1) has a grounding terminal (5) fixedly installed on its side wall.

6. A foldable high-voltage electrical equipment shielding cover according to claim 1, characterized in that, A handle (6) is fixedly installed at the top of the fixing plate (1).

7. A foldable high-voltage electrical equipment shielding cover according to claim 2, characterized in that, Two connecting rods (22) are provided at intervals along the fixing plate (1), and each connecting rod (22) is fixedly connected to the fixing plate (1) and the first shielding cover (23).

8. A foldable high-voltage electrical equipment shielding cover according to claim 2, characterized in that, The first shield (23), the second shield (25), and the third shield (26) are made of aluminum alloy.

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