Adjustable insulation device of switch cabinet

Abstract

The invention belongs to the technical field of electric power overhaul, and particularly relates to an adjustable insulation device of a switch cabinet, which comprises a main board and two auxiliary boards in limited sliding connection with the main board, and further comprises a transmission adjusting assembly, an insulation pushing assembly, a clamping connection assembly, a magnetic attraction fixing assembly and an elastic compression assembly, the transmission adjusting assembly is fixed on the main board and the auxiliary board and drives the auxiliary board to move relative to the main board so as to adjust the insulation size. The insulation pushing assembly is detachably connected with the transmission adjusting assembly through the clamping connection assembly, and pushes the main board and the auxiliary board into the switch cabinet. The relative positions of the main board and the auxiliary board can be adjusted to adapt to switch cabinets of different sizes, a firm magnetic attraction structure is combined to prevent the insulation baffle from falling off so as to eliminate potential safety hazards, meanwhile, an in-place installation warning function and a magnetic block cleaning and blowing mechanism are achieved to prevent impurities from influencing the magnetic attraction stability, the risk that workers touch live parts by mistake is effectively avoided, and the working efficiency is improved. And the applicability and the use reliability are obviously improved.

Description

Technical Field

[0001] This invention belongs to the field of power maintenance technology, and in particular relates to an adjustable insulation device for switchgear. Background Technology

[0002] Against the backdrop of the rapid development of smart grids, the stability and maintenance safety of power systems have become core requirements. Switchgear, as a key piece of equipment in the power distribution link of smart grids, is a high-risk operation when it is under maintenance. Electric shocks and even fatal accidents caused by accidental contact with live parts due to operational errors occur frequently. According to statistics, about 30% of safety accidents in power system maintenance are directly related to such accidental contact.

[0003] To reduce maintenance risks, existing technologies have developed protective measures such as insulated gloves and specialized insulated tools. However, these traditional protective measures can only provide localized protection and are insufficient to meet the comprehensive protection needs of different scenarios in smart grids (such as multiple switchgear models and complex wiring environments). Further analysis reveals that the structural design of current insulation protection products on the market is fixed and cannot flexibly adapt to the size differences of different switchgear models in smart grids. They are also difficult to deploy efficiently in confined maintenance spaces.

[0004] To address the aforementioned compatibility deficiencies, existing technologies have proposed relevant improvement solutions. For example, the "Adjustable Insulation Device for Switchgear" (publication number CN118943906A) achieves compatibility with different switchgear models and confined spaces through the relative position adjustment design of the main board and sub-board, and uses a structure of mounting pins, limit grooves, and protrusions to achieve rapid locking. However, this solution still has significant technical defects: its reliance on mounting pins for fixing requires precise pre-measurement of the switchgear dimensions to adjust the positions of the main board and sub-board, which is cumbersome and inefficient. Furthermore, the fixed installation position of the mounting pins makes it difficult to accurately match the actual fixing requirements of different switchgears, and additional auxiliary fixing structures are required to maintain the stability of the main board and sub-board. This not only makes operation inconvenient but also results in weak anti-shaking capability—when encountering external disturbances, the fixing is prone to loosening, directly affecting the insulation protection performance and failing to meet the dual requirements of efficiency and safety for maintenance operations in smart grids. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing an adjustable insulation device for switchgear.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable insulation device for a switchgear, comprising a main board and two auxiliary boards that are slidably connected to the main board, and further comprising a transmission adjustment component, an insulation pushing component, a locking connection component, a magnetic attraction fixing component, and an elastic pressure-bearing component. The transmission adjustment component is fixed on the main board and the auxiliary boards, driving the auxiliary boards to move relative to the main board to adjust the insulation dimensions. The insulation pushing component is detachably connected to the transmission adjustment component through the locking connection component, pushing the main board and the auxiliary boards into the switchgear. The magnetic attraction fixing component is embedded in the end of the auxiliary board, so that the auxiliary board is magnetically fixed to the switchgear after installation. The elastic pressure-bearing component is embedded in the end of the auxiliary board and is arranged opposite to the magnetic attraction fixing component, providing a pushing force to the magnetic attraction fixing component and performing a cleaning treatment on it.

[0007] In the aforementioned adjustable insulation device for a switchgear, the transmission adjustment assembly includes a mounting shell fixedly connected to the middle of the rear side of the main board. Two U-shaped fixing plates are symmetrically fixedly connected to the upper and lower ends of the mounting shell. An adjustment screw is rotatably connected between the U-shaped fixing plates and the mounting shell. A moving block is threaded onto the adjustment screw. The moving block is fixed to the rear side of the sub-plate. Two bearing seats are symmetrically fixedly installed on the inner wall of the mounting shell, and a transmission shaft is rotatably connected to the bearing seats through ball bearings. An input shaft is rotatably connected to the front side of the mounting shell. One end of the input shaft located inside the mounting shell is connected to the two transmission shafts through a bevel gear assembly, and the other end of the transmission shaft is connected to the adjustment screw through a bevel gear assembly.

[0008] It is known that the traditional method of adjusting the size of the insulating baffle composed of the main board and the sub-board is to change it using locating pins. However, this method results in insufficient precision in size adjustment, making it difficult to meet the needs of switchgear of different sizes. Furthermore, the adjustment method is cumbersome and inconvenient, affecting efficiency. Therefore, this solution allows for quick and precise adjustment of the relative positions of the main board and the sub-board based on the size of the switchgear. It ensures sufficient pushing force to fix the insulating baffle composed of the main board and the sub-board inside the switchgear, eliminating the need for additional fixing structures and making operation fast and convenient.

[0009] In the aforementioned adjustable insulation device for a switchgear, the insulation pushing assembly includes a U-shaped connecting plate. The U-shaped connecting plate is detachably connected to the mounting shell via a snap-fit ​​connecting assembly. A servo motor is fixedly mounted on the rear side of the U-shaped connecting plate. The output end of the servo motor passes through the U-shaped connecting plate and is fixedly connected to a circular plate. A circular plate two, which abuts against the circular plate one, is fixedly connected to the rear end of the input shaft. Multiple plug-in rods are evenly fixedly connected to the side wall of the circular plate one. Multiple plug-in holes matching the plug-in rods are opened on the surface of the circular plate two. A link bar is fixedly mounted on the rear side of the U-shaped connecting plate.

[0010] It is known that traditionally, when delivering insulating baffles into switchgear, directly hand-feeding the baffles can easily cause electric shock accidents to workers, and the placement is not accurate due to the limitations of the worker's arm movements. Therefore, this solution enables the insulating baffles to be quickly delivered to the designated isolation position in the switchgear, and the insulating push assembly can be quickly installed and removed, facilitating easy access and avoiding the problem of the insulating push assembly obstructing workers' maintenance operations.

[0011] In the aforementioned adjustable insulation device for a switchgear, the locking connection assembly includes a locking shell fixedly connected to the outer wall of the end of the U-shaped connecting plate. The side wall of the U-shaped connecting plate located inside the locking shell has multiple insertion holes, and locking rods are movably inserted into the corresponding insertion holes. The end of the mounting shell has multiple locking holes that match and insert into the locking rods. One end of the multiple locking rods located inside the locking shell is fixedly connected to the same push-pull plate. Multiple retaining springs sleeved outside the locking rods are fixedly connected between the push-pull plate and the U-shaped connecting plate. A force-bearing permanent magnet plate is fixedly installed on the rear side of the push-pull plate, and a force-applying electromagnetic plate is fixedly installed on the inner wall of the locking shell, which is opposite to the force-bearing permanent magnet plate.

[0012] As can be seen, in the traditional method of pushing the insulating baffle with an insulating rod, the insulating rod extends out and occupies maintenance space inside the switchgear, affecting the convenience of maintenance operations. Therefore, this solution enables quick disassembly of the insulating pushing assembly, avoiding the occupation of maintenance space.

[0013] In the aforementioned adjustable insulation device for a switchgear, the magnetic fixing assembly includes multiple evenly spaced recesses at the ends of a sub-plate. A magnetic block is placed in each recess. The sub-plate also has a sealing cavity located behind the recess, and a push piston is fitted into the sealing cavity. Multiple push rods are fixedly connected to the side wall of the push piston. The end of each push rod away from the push piston extends into the recess and is fixedly connected to the magnetic block.

[0014] It is known that traditional methods of fixing insulating baffles require additional fixing structures, which are cumbersome, inconvenient, and difficult to assemble and disassemble. Therefore, this solution applies magnetic fixing force to the end of the sub-plate, making the installation of the insulating baffle more stable, quick, and convenient, and greatly improving the maintenance efficiency of the switchgear.

[0015] In the aforementioned adjustable insulation device for a switchgear, the elastic pressure-bearing component includes a groove at the end of a sub-plate, and a trigger plate is movably inserted into the corresponding groove. Multiple limiting slide rods are fixedly connected to the bottom of the groove. A sliding cavity is formed within the trigger plate, and the limiting slide rods penetrate into the sliding cavity. Multiple return springs, sleeved outside the limiting slide rods, are fixedly connected between the trigger plate and the groove. Multiple compressed air bags (first type) are also fixedly installed between the trigger plate and the groove. The compressed air bags (first type) are connected to the sealing cavity via a connecting pipe. Multiple buffer cavities are also evenly formed within the trigger plate. Multiple cleaning micro-holes communicating with the buffer cavities are formed on the sidewall of the trigger plate. Multiple compressed air bags (second type) corresponding to the positions of the buffer cavities are also fixedly connected between the trigger plate and the groove. The buffer cavities communicate with the compressed air bags (second type). A whistle is also embedded on the top side of the trigger plate corresponding to the buffer cavity.

[0016] It is known that when using magnetic fixing, it is difficult to further adjust the final installation position of the insulating baffle after magnetic fixation, making adjustment inconvenient due to the influence of magnetic force during installation. Therefore, this solution provides a warning whistle when the installation is almost in place, allowing staff to know the installation status and allowing impurities adhering to the surface of the magnetic blocks to be blown away, preventing these impurities from affecting the final magnetic fixing force and ensuring the stable installation of the insulating baffle.

[0017] In the aforementioned adjustable insulation device for a switchgear, an outer expansion plate is integrally connected to the end of the U-shaped connecting plate, a guide slide rod is fixedly connected to the rear side of the main board, and a guide slide hole is provided on the surface of the outer expansion plate to slide and engage with the guide slide rod.

[0018] Compared with existing technologies, the advantages of this invention are as follows: 1. The main board, sub-board, transmission adjustment components, insulation pushing components, and clamping connection components can effectively prevent workers from accidentally touching live parts. Furthermore, the relative installation positions of the main board and sub-board can be adjusted based on the size of the switch cabinet, making it more adaptable.

[0019] 2. The magnetic fixing components can more firmly attach the insulating baffle composed of the main board and the sub-board inside the switch cabinet, resulting in better performance and preventing the insulating baffle from falling off and causing safety hazards.

[0020] 3. The elastic pressure-bearing components can promptly issue a warning to the staff when the insulating baffle is about to be installed in place, reminding them to make final position adjustments and to clean the magnetic blocks to prevent impurities adhering to the magnetic blocks from affecting the magnetic attraction. Attached Figure Description

[0021] Figure 1 This is a front-view stereoscopic structural diagram of the present invention; Figure 2 This is a rear-view stereoscopic structural diagram of the present invention; Figure 3 This is a three-dimensional structural schematic diagram of the transmission adjustment component of the present invention; Figure 4 This is a three-dimensional structural schematic diagram of the insulating push assembly of the present invention; Figure 5 This is a frontal sectional view of the present invention; Figure 6 This is a cross-sectional view of the fastening connection component of the present invention; Figure 7 This is a cross-sectional view of the magnetic fixing component of the present invention; Figure 8 yes Figure 7 Enlarged view of section A; Figure 9 This is a cross-sectional view of the elastic compression component of the present invention; Figure 10 yes Figure 9 Enlarged view of section B.

[0022] In the diagram: 1 Main board, 2 Sub-board, 3 Transmission adjustment assembly, 31 Mounting shell, 32 U-shaped fixing plate, 33 Adjusting screw, 34 Moving block, 35 Bearing seat, 36 Transmission shaft, 37 Input shaft, 38 Bevel gear assembly one, 39 Bevel gear assembly two, 4 Insulated push assembly, 41 U-shaped connecting plate, 42 Servo motor, 43 Round plate one, 44 Round plate two, 45 Connecting rod, 46 Connecting hole, 47 Link bar, 48 Outer expansion plate, 49 Guide slide rod, 410 Guide slide hole, 5 Locking connection assembly, 5 1. Locking shell, 52. Locking rod, 53. Locking hole, 54. Push-pull plate, 55. Holding spring, 56. Force-bearing permanent magnet plate, 57. Force-adding electromagnetic plate, 6. Magnetic fixing assembly, 61. Embedding groove, 62. Magnetic block, 63. Sealing cavity, 64. Push piston, 65. Push rod, 7. Elastic pressure-bearing assembly, 71. Groove, 72. Trigger plate, 73. Limiting slide rod, 74. Sliding cavity, 75. Reset spring, 76. Compression airbag one, 77. Connecting pipe, 78. Buffer cavity, 79. Cleaning micro-hole, 710. Compression airbag two, 711. Whistle. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] like Figures 1-10As shown, an adjustable insulation device for a switchgear includes a main board 1 and two auxiliary boards 2 that are slidably connected to the main board 1. Both the main board 1 and the auxiliary boards 2 are made of epoxy resin, possessing excellent insulation performance, thus providing reliable safety protection for workers. A wedge block is fixedly installed on the rear side of the auxiliary boards 2, and a wedge groove with a through end is opened on the side wall of the main board 1, enabling the main board 1 and the auxiliary boards 2 to achieve stable sliding adjustment. The device also includes a transmission adjustment assembly 3, an insulation pushing assembly 4, a locking connection assembly 5, a magnetic fixing assembly 6, and an elastic compression... Component 7 and transmission adjustment component 3 are fixed on main board 1 and sub-board 2, driving sub-board 2 to move relative to main board 1 to adjust insulation size; insulation pushing component 4 is detachably connected to transmission adjustment component 3 through snap-fit ​​connection component 5, pushing main board 1 and sub-board 2 into switch cabinet; magnetic fixing component 6 is embedded in the end of sub-board 2, so that sub-board 2 is magnetically fixed to switch cabinet after installation; elastic pressure component 7 is embedded in the end of sub-board 2 and is opposite to magnetic fixing component 6, providing pushing force to magnetic fixing component 6 and cleaning it.

[0025] As one embodiment of the present invention, refer to Figure 1 , Figure 3 and Figure 4 The transmission adjustment assembly 3 includes a mounting shell 31 fixedly connected to the middle of the rear side of the main board 1. Two U-shaped fixing plates 32 are symmetrically fixedly connected to the upper and lower ends of the mounting shell 31. An adjustment screw 33 is rotatably connected between the U-shaped fixing plates 32 and the mounting shell 31. A moving block 34 is threaded onto the adjustment screw 33. The moving block 34 is fixed to the rear side of the sub-plate 2. Two bearing seats 35 are symmetrically fixedly installed on the inner wall of the mounting shell 31. A transmission shaft 36 is rotatably connected to the bearing seat 35 through a ball bearing. An input shaft 37 is rotatably connected to the front side of the mounting shell 31. One end of the input shaft 37 located inside the mounting shell 31 is connected to the two transmission shafts 36 through a bevel gear assembly 38. The other end of the transmission shaft 36 is connected to the adjustment screw 33 through a bevel gear assembly 39.

[0026] Under the above settings, the input shaft 37 is driven to rotate by the insulating push assembly 4 as the power output, and then the two transmission shafts 36 are driven to rotate synchronously by the bevel gear assembly 38. The transmission shafts 36 are driven to rotate by the two adjusting screws 33 by the bevel gear assembly 39. The adjusting screws 33 and the moving block 34 are connected by a threaded connection, which drives the moving block 34 to move the sub-plate 2. This allows the position of the sub-plate 2 relative to the main plate 1 to be precisely adjusted, which can be used for insulation protection of switchgear of different sizes.

[0027] As one embodiment of the present invention, refer to Figure 1 , Figure 2 and Figure 4The insulating push assembly 4 includes a U-shaped connecting plate 41, which is detachably connected to the mounting shell 31 via a locking connection assembly 5. A servo motor 42 is fixedly mounted on the rear side of the U-shaped connecting plate 41. The output end of the servo motor 42 passes through the U-shaped connecting plate 41 and is fixedly connected to a circular plate 43. A circular plate 44 that abuts against the circular plate 43 is fixedly connected to the rear end of the input shaft 37. Multiple plug-in rods 45 are evenly fixedly connected to the side wall of the circular plate 43. Multiple plug-in rods 45 are formed on the surface of the circular plate 44 to match the plug-in rods 45. The connector 46 has a link bar 47 fixedly installed on the rear side of the U-shaped connecting plate 41. The end of the U-shaped connecting plate 41 is also integrally connected to an expansion plate 48. The rear side of the main board 1 is fixedly connected to a guide slide rod 49. The surface of the expansion plate 48 is provided with a guide slide hole 410 that slides with the guide slide rod 49. A battery pack (not shown in the figure) is also fixed on the bracket connecting the link bar 47 and the U-shaped connecting plate 41. It can provide power support for the servo motor 42 and the clamping connection assembly 5 without the need for an external power supply.

[0028] Under the above-mentioned conditions, the U-shaped connecting plate 41 can accurately enter the installation position through the guide slide rod 49 and the guide slide hole 410 on the surface of the outer expansion plate 48, so that the U-shaped connecting plate 41 moves towards the mounting shell 31, thereby causing the circular plate 43 connected to the output end of the servo motor 42 to abut against the circular plate 44. The multiple plug-in rods 45 connected on the circular plate 43 match and plug into the plug-in holes 46 opened on the circular plate 44, so that the output end of the servo motor 42 is connected to the input shaft 37 of the transmission adjustment component 3. The servo motor 42 provides power output to quickly adjust the position of the sub-plate 2 relative to the main plate 1. The output end of the servo motor 42 is also equipped with a torque sensor. When the sub-plate 2 abuts against the inner wall of the switch cabinet, it indicates that the installation is in place. At this time, as the servo motor 42 continues to output, the torque value fed back by the torque sensor exceeds the set threshold, and the feedback completes the installation work, which can ensure that the insulating baffle composed of the main plate 1 and the sub-plate 2 is installed in place.

[0029] As one embodiment of the present invention, refer to Figure 1 , Figure 4 , Figure 5 and Figure 6The locking connection assembly 5 includes a locking shell 51 fixedly connected to the outer wall of the end of the U-shaped connecting plate 41. The side wall of the U-shaped connecting plate 41 located inside the locking shell 51 has multiple insertion holes, and locking rods 52 are movably inserted into the corresponding insertion holes. The end of the mounting shell 31 has multiple locking holes 53 that match and are inserted into the locking rods 52. The end of the locking rods 52 is designed with an arc head structure to facilitate the insertion of the locking rods 52 into the locking holes 53. One end of the multiple locking rods 52 located inside the locking shell 51 is fixedly connected to the same push-pull plate 54. Multiple retaining springs 55 sleeved on the outside of the locking rods 52 are fixedly connected between the push-pull plate 54 and the U-shaped connecting plate 41. A force-bearing permanent magnet plate 56 is fixedly installed on the rear side of the push-pull plate 54. An amplifying electromagnetic plate 57 is fixedly installed on the inner wall of the locking shell 51, which is opposite to the force-bearing permanent magnet plate 56.

[0030] Under the above-mentioned conditions, when the U-shaped connecting plate 41 and the mounting shell 31 are assembled relative to each other, current is first supplied to the force-applying electromagnetic plate 57 through the battery pack, so that the force-applying electromagnetic plate 57 is energized and generates a magnetism opposite to that of the force-bearing permanent magnet plate 56, thereby applying a magnetic attraction force to the push-pull plate 54, causing the push-pull plate 54 to overcome the elastic force of the holding spring 55 and drive the locking rod 52 back, so as to prevent the locking rod 52 from extending out of the U-shaped connecting plate 41 and blocking the relative connection between the U-shaped connecting plate 41 and the mounting shell 31. After the U-shaped connecting plate 41 is locked in place, the power supply to the force-applying electromagnetic plate 57 is cut off. Under the action of the holding spring 55, the push-pull plate 54 is driven to reset and move, thereby causing the locking rod 52 to be locked into the locking hole 53 opened in the side wall of the mounting shell 31, realizing the quick connection between the U-shaped connecting plate 41 and the mounting shell 31. This allows for the quick disassembly of the U-shaped connecting plate 41 and the mounting shell 31 after the adjustment and installation of the insulating baffle is completed, avoiding the problem of the link rod 47 occupying maintenance space.

[0031] As one embodiment of the present invention, refer to Figure 7 and Figure 8 The magnetic fixing assembly 6 includes multiple evenly spaced slots 61 at the ends of the sub-plate 2. A magnetic block 62 is placed in the slot 61. The sub-plate 2 also has a sealing cavity 63 located behind the slot 61. A push piston 64 is sealed in the sealing cavity 63. Multiple push rods 65 are fixedly connected to the side wall of the push piston 64. The end of the push rod 65 away from the push piston 64 passes through the slot 61 and is fixedly connected to the magnetic block 62.

[0032] Under the above-mentioned conditions, after the end of the sub-plate 2 comes into contact with the inner wall of the switch cabinet, the magnetism of the magnetic block 62 will attract and fix it to the inner wall of the switch cabinet, thereby strengthening the fixing force between the sub-plate 2 and the switch cabinet. This prevents the sub-plate 2 from being easily shifted by external forces after installation, enhances the insulation and protection performance, and eliminates the need for additional fixing structures, making operation quick and convenient.

[0033] As one embodiment of the present invention, refer to Figure 9 and Figure 10 The elastic pressure-bearing component 7 includes a groove 71 formed at the end of the sub-plate 2, and a trigger plate 72 is movably inserted into the corresponding groove 71. Multiple limiting slide rods 73 are fixedly connected to the bottom of the groove 71. A sliding cavity 74 is formed in the trigger plate 72, and the limiting slide rods 73 pass through the sliding cavity 74. Multiple return springs 75 sleeved on the limiting slide rods 73 are fixedly connected between the trigger plate 72 and the groove 71. Multiple compression airbags 76 are also fixedly installed between the trigger plate 72 and the groove 71. The compressed air bag 76 and the sealed cavity 63 are connected by a connecting pipe 77. Multiple buffer cavities 78 are evenly provided inside the trigger plate 72. Multiple blowing micro-holes 79 connected to the buffer cavities 78 are provided on the side wall of the trigger plate 72. Multiple compressed air bags 710 corresponding to the positions of the buffer cavities 78 are also fixedly connected between the trigger plate 72 and the groove 71. The buffer cavities 78 are connected to the compressed air bags 710. A whistle 711 is also embedded on the top side of the trigger plate 72 corresponding to the buffer cavity 78.

[0034] Under the above-mentioned conditions, when the auxiliary plate 2 is about to contact the inner wall of the switch cabinet and complete the installation, the trigger plate 72 first abuts against the inner wall of the switch cabinet. As the auxiliary plate 2 continues to move, the trigger plate 72 will move in the opposite direction and move closer to the auxiliary plate 2, thereby squeezing the first compression airbag 76 and the second compression airbag 710. First, the air stored in the first compression airbag 76 is pumped into the sealing cavity 63 through the connecting pipe 77, which increases the air pressure in the sealing cavity 63. This drives the push piston 64 and the push rod 65 to move the magnetic block 62 upward until the auxiliary plate 2 contacts the switch cabinet. The upper surface of the magnetic block 62 is flush with the surface of the auxiliary plate 2 and magnetically fixed with the switch cabinet. This ensures that the magnetic block 62 only generates magnetic attraction force after the final installation position is confirmed, avoiding the inconvenience of adjusting the installation position of the auxiliary plate 2 due to magnetic attraction force during the adjustment of the installation position, and avoiding the problem that the magnetic block 62 will always be exposed, which will accelerate its wear and damage during daily use. During the compression process, the air stored in the second airbag 710 enters the buffer chamber 78 and is then ejected at high speed through the cleaning micro-holes 79. These micro-holes 79 are tilted towards the magnetic block 62, providing a cleaning force to the surface of the magnetic block 62. This causes dust and impurities adhering to the surface of the magnetic block 62 to fall off quickly, preventing dust and impurities from affecting the magnetic adhesion during subsequent magnetic fixation. Furthermore, as the magnetic block 62 and the trigger plate 72 move relative to each other, the relative position of the cleaning air generated by the cleaning micro-holes 79 and the magnetic block 62 changes, thus… It can achieve a comprehensive cleaning of the surface of the magnetic block 62. When the compressed air bag 710 inputs air into the buffer chamber 78, some air will be discharged from the whistle 711, which will cause the whistle 711 to sound, reminding the staff that they are about to reach the final installation position. This helps the staff to adjust and confirm the final installation position in a timely manner. The relatively flexible connection between the trigger plate 72 and the sub-plate 2 makes it easy for the staff to adjust the final installation position. After the installation is in place, the whistle 711 will no longer make a sound, which can also remind the staff to complete the installation work.

[0035] The operating principle of the present invention is described as follows: The guide sliding hole 410 on the outer expansion plate 48 connected to the end of the U-shaped connecting plate 41 is aligned with the guide sliding rod 49 fixed on the surface of the main board 1 and inserted. The installation position of the U-shaped connecting plate 41 is confirmed. A pushing force is applied to the U-shaped connecting plate 41 to move the U-shaped connecting plate 41 toward the main board 1. During this process, power is supplied to the force-applying electromagnetic plate 57 in the locking connection assembly 5, so that the force-applying electromagnetic plate 57 is energized and generates a magnetism opposite to that of the force-receiving permanent magnet plate 56, thereby applying a magnetic attraction force to the push-pull plate 54 and pulling back the locking rod 52 to prevent the locking rod 52 from extending and affecting the insertion of the U-shaped connecting plate 41 and the mounting shell 31. After installation, the power supply to the force-applying electromagnetic plate 57 is cut off. Under the return action of the holding spring 55, the locking rod 52 is inserted into the locking hole 53 on the side wall of the mounting shell 31, completing the relatively stable connection between the U-shaped connecting plate 41 and the mounting shell 31. At this time, the circular plate 43 connected to the output end of the servo motor 42 also abuts against the circular plate 44. The plug rod 45 on the circular plate 43 is inserted into the plug hole 46 on the circular plate 44, realizing the relative connection between the servo motor 42 and the input shaft 37. The servo motor 42 is started, and the servo motor 42 drives the input shaft 37 to rotate. The input shaft 37 drives the two transmission shafts 36 to rotate through the bevel gear assembly 38. The transmission shafts 36 drive the adjusting screw 33 to rotate through the bevel gear assembly 39. Then, through the threaded connection between the adjusting screw 33 and the moving block 34, the sub-plate 2 is driven to move relative to the main plate 1, thereby changing the size of the insulating baffle composed of the main plate 1 and the sub-plate 2 to match switch cabinets of different sizes. The insulating baffle is sent into the switch cabinet through the link rod 47, which can prevent personnel from having electric shock accidents. As the secondary plate 2 moves relative to the main plate 1, when the secondary plate 2 is about to touch the inner wall of the switch cabinet, the extended trigger plate 72 first touches the inner wall of the switch cabinet. As the secondary plate 2 continues to move, the trigger plate 72 is relatively squeezed, which in turn squeezes the first compression airbag 76 and the second compression airbag 710. The air in the first compression airbag 76 is transported to the sealing cavity 63 through the connecting pipe 77, which in turn drives the push piston 64 and the push rod 65 to push the magnetic block 62 outward, so that the magnetic block 62 gradually enters the working position. Air from the compressed air chamber 710 enters the buffer chamber 78 and is ejected through multiple cleaning micro-holes 79, effectively cleaning the dust and impurities adhering to the surface of the magnetic block 62. The whistle 711 sounds to remind the staff to adjust the final installation position. When the auxiliary plate 2 touches the inner wall of the switch cabinet, the magnetic block 62 also moves to a position flush with the surface of the auxiliary plate 2, generating a magnetic attraction force with the inner wall of the switch cabinet, assisting the entire insulating baffle to complete the final fixation. Power is then supplied to the electromagnetic plate 57 to pull the locking rod 52 out of the locking hole 53, releasing the relative fixation between the U-shaped connecting plate 41 and the mounting shell 31, and removing the link rod 47 to avoid the link rod 47 occupying maintenance space.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable insulation device of a switch cabinet, comprising a main plate (1) and two sub-plates (2) in sliding connection with the main plate (1), characterized in that, Also include transmission adjustment assembly (3), insulation push assembly (4), clamping connection assembly (5), magnetic attraction fixing assembly (6) and elastic pressure assembly (7), transmission adjustment assembly (3) is fixed on the mainboard (1) and vice board (2), drive vice board (2) relative to the mainboard (1) moves, adjusts the insulation size;Insulation push assembly (4) is detachably connected with transmission adjustment assembly (3) through clamping connection assembly (5), pushes mainboard (1) and vice board (2) into the switch cabinet;The magnetic attraction fixing assembly (6) is embedded in the end of the vice board (2), so that the vice board (2) is installed in place and magnetically attracted to the switch cabinet;The elastic pressure assembly (7) is embedded in the end of the vice board (2), and is arranged opposite to the magnetic attraction fixing assembly (6), which provides a thrust force to the magnetic attraction fixing assembly (6) and performs blowing treatment.

2. An adjustable insulation device for a switchgear cabinet according to claim 1, characterized in that The transmission adjustment assembly (3) comprises a mounting shell (31) fixedly connected to the rear side of the mainboard (1), two U-shaped fixed plates (32) are symmetrically fixedly connected to the upper and lower ends of the mounting shell (31), an adjusting screw (33) is rotatably connected between the U-shaped fixed plate (32) and the mounting shell (31), a moving block (34) is threadedly connected to the adjusting screw (33), the moving block (34) is fixed to the rear side of the vice board (2), two bearing seats (35) are symmetrically fixedly arranged on the inner wall of the mounting shell (31), and a transmission shaft (36) is rotatably connected in the bearing seat (35) through a ball bearing, an input shaft (37) is rotatably connected to the front side of the mounting shell (31), one end of the input shaft (37) located in the mounting shell (31) is drivingly connected with the two transmission shafts (36) through a bevel gear assembly (38), and the other end of the transmission shaft (36) is drivingly connected with the adjusting screw (33) through a bevel gear assembly (two) (39).

3. An adjustable insulation device for a switchgear cabinet according to claim 2, characterized in that The insulation push assembly (4) comprises a U-shaped connecting plate (41), the U-shaped connecting plate (41) is detachably connected with the mounting shell (31) through the clamping connection assembly (5), a servo motor (42) is fixedly arranged on the rear side of the U-shaped connecting plate (41), the output end of the servo motor (42) penetrates the U-shaped connecting plate (41) and is fixedly connected with a circular plate (43), the rear end of the input shaft (37) is fixedly connected with a circular plate (44) abutting against the circular plate (43), a plurality of plug-in rods (45) are uniformly fixedly connected to the side wall of the circular plate (43), a plurality of plug-in holes (46) matched with the plug-in rods (45) are formed in the surface of the circular plate (44), and a lead bar (47) is fixedly arranged on the rear side of the U-shaped connecting plate (41).

4. An adjustable insulation device for a switchgear cabinet according to claim 3, characterized in that The clamping connection assembly (5) comprises a clamping shell (51) fixedly connected to the outer wall of the end of the U-shaped connecting plate (41), a plurality of insertion holes are formed in the side wall of the U-shaped connecting plate (41) located in the clamping shell (51), and a clamping rod (52) is movably inserted into each insertion hole, a plurality of clamping holes (53) are formed in the end of the mounting shell (31) and are matched with the clamping rods (52), one end of the plurality of clamping rods (52) located in the clamping shell (51) is fixedly connected to the same push-pull plate (54), a plurality of retaining springs (55) are fixedly connected between the push-pull plate (54) and the U-shaped connecting plate (41) and are sleeved on the clamping rods (52), a stress permanent magnet plate (56) is fixedly arranged on the rear side of the push-pull plate (54), and a force adding electromagnetic plate (57) is fixedly arranged on the inner wall of the clamping shell (51) and is opposite to the stress permanent magnet plate (56).

5. An adjustable insulation device for a switchgear cabinet according to claim 1, characterized in that The magnetic attraction fixing assembly (6) comprises a plurality of embedding grooves (61) uniformly formed in the end of the secondary plate (2), and a magnetic block (62) is arranged in each embedding groove (61), the inner portion of the secondary plate (2) is further provided with a sealing cavity (63) located at the rear side of the embedding groove (61), a push piston (64) is sealingly sleeved in the sealing cavity (63), a plurality of push rods (65) are fixedly connected to the side wall of the push piston (64), and one end of each push rod (65) penetrates into the embedding groove (61) and is fixedly connected to the magnetic block (62).

6. An adjustable insulation device for a switchgear cabinet according to claim 5, characterized in that The elastic pressure receiving assembly (7) comprises a groove (71) formed in the end of the secondary plate (2), and a trigger plate (72) is movably inserted into the groove (71), a plurality of limiting sliding rods (73) are fixedly connected to the groove bottom of the groove (71), a sliding cavity (74) is formed in the trigger plate (72), the limiting sliding rods (73) penetrate into the sliding cavity (74), a plurality of return springs (75) are fixedly connected between the trigger plate (72) and the groove (71) and are sleeved on the limiting sliding rods (73), a plurality of compressed air bags (76) are fixedly arranged between the trigger plate (72) and the groove (71), the compressed air bags (76) and the sealing cavity (63) are communicated through a communication pipe (77), a plurality of buffer cavities (78) are uniformly formed in the trigger plate (72), a plurality of cleaning micro-holes (79) are formed in the side wall of the trigger plate (72) and are communicated with the buffer cavities (78), a plurality of compressed air bags (710) are fixedly connected between the trigger plate (72) and the groove (71) and are arranged at positions corresponding to the buffer cavities (78), and the buffer cavities (78) are communicated with the compressed air bags (710).

7. An adjustable insulation device for a switchgear cabinet according to claim 3, characterized in that The end of the U-shaped connecting plate (41) is further integrally connected with an outwardly expanding plate (48), the rear side of the main plate (1) is fixedly connected with a guide sliding rod (49), and the surface of the outwardly expanding plate (48) is provided with a guide sliding hole (410) which is slidably sleeved with the guide sliding rod (49).

8. An adjustable insulation device for a switchgear cabinet according to claim 6, characterized in that A whistle (711) is further embedded on one side of the top of the trigger plate (72) corresponding to the buffer cavity (78).

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