Environment-friendly maintenance-free totally-enclosed ring main unit

Abstract

The utility model discloses an environment-friendly maintenance-free totally-enclosed ring main unit, which relates to the field of ring main units and comprises a cabinet body, supporting wheels are arranged at the bottom of the cabinet body, and rotating blocks rotationally connected with the supporting wheels are rotationally mounted in the bottom of the cabinet body. Through the arrangement of the supporting wheels, the rotating blocks, the magnetic blocks and the rotating grooves, when the cabinet body needs to be transversely moved, the rotating blocks automatically start to rotate under the action that the weight of the supporting wheels and the universal gravitation repel the magnetism of the two groups of magnetic blocks only by lifting the cabinet body to arrange the bottom corners of the supporting wheels, so that the supporting wheels protrude out of the cabinet body; and then the cabinet body is put back to the original position, the rotating block is limited by the weight of the cabinet body and the rotating groove, so that the angle of the rotating block cannot be continuously changed, a worker can push the supporting wheels to adjust the position of the cabinet body at the moment, the cabinet body is more convenient to move through the arrangement of the supporting wheels, meanwhile, the operation of placing and taking round steel is omitted, and the working efficiency is improved. And higher safety and convenience are realized.

Description

Technical Field

[0001] The utility model relates to the field of ring network cabinets, in particular to an environmentally friendly maintenance-free fully enclosed ring network cabinet. Background Art

[0002] The environmentally friendly gas insulated ring main unit series is suitable for industrial and civil cable ring networks and distribution network terminal projects. It is used for receiving and distributing electric energy. It is particularly suitable for power distribution in urban residential areas, small secondary substations, switchgear, cable branch boxes, box-type substations, industrial and mining enterprises, shopping malls, airports, subways, wind power generation, stadiums, railways, tunnels and other places.

[0003] Most of the existing environmentally friendly gas-insulated ring main unit cabinets are maintenance-free and fully enclosed. Their switches and main electrical components are integrated modules, the interphase conductive parts are solid-insulated packages, shielded cable connectors are used for external wiring, and shielded insulated busbars are used for functional unit connection busbars. Therefore, the safety of use is greatly improved. The operating mechanism adopts a spring mechanism with a mechanical life of more than 10,000 times. Its operating data and equipment status can be remotely monitored and controlled, and it can be unattended. It is actually a high-performance distribution device. At present, the size and weight of most environmentally friendly gas-insulated ring main unit cabinets are too large for a worker to carry. When transporting them during the installation process, forklifts, indoor transfer carts and other tools are required. At the same time, at least three workers are required to carry out the transportation. After using tools to transfer the environmentally friendly gas insulated ring network cabinet to the designated location, the environmentally friendly gas insulated ring network cabinet is aligned with other environmentally friendly gas insulated ring network cabinets. At this time, workers are required to push the environmentally friendly gas insulated ring network cabinet to adjust its position. Although the friction resistance at the bottom of most environmentally friendly gas insulated ring network cabinets is small, in order to save more effort, during this process, workers will lift a corner of the bottom of the environmentally friendly gas insulated ring network cabinet, and then place a round steel at the bottom of it, and then push the environmentally friendly gas insulated ring network cabinet to move horizontally. The round steel will reduce the resistance of workers when pushing the environmentally friendly gas insulated ring network cabinet, making it more labor-saving to push the environmentally friendly gas insulated ring network cabinet.

[0004] However, in the process of aligning the environmentally friendly gas insulated ring main unit with other environmentally friendly gas insulated ring main unit, it is necessary to avoid collision between the environmentally friendly gas insulated ring main unit and other environmentally friendly gas insulated ring main unit when pushing the environmentally friendly gas insulated ring main unit off the transfer cart. Therefore, when pushing the environmentally friendly gas insulated ring main unit down, it will be pushed to a position away from other environmentally friendly gas insulated ring main unit. In the process of horizontally moving the environmentally friendly gas insulated ring main unit, it maintains a certain distance from other environmentally friendly gas insulated ring main unit, so after pushing the environmentally friendly gas insulated ring main unit for a certain distance, it is necessary to The position of the round steel is adjusted to ensure that the round steel will always be at the bottom of the environmentally friendly gas insulated ring network cabinet. This process usually requires moving the round steel 2-3 times. After pushing the environmentally friendly gas insulated ring network cabinet to align with other environmentally friendly gas insulated ring network cabinets, workers are required to pull the round steel out from the bottom of the environmentally friendly gas insulated ring network cabinet, resulting in the need to place round steel for assistance when moving the environmentally friendly gas insulated ring network cabinet horizontally. At the same time, the round steel needs to be moved multiple times, and finally workers are required to take out the round steel. The process is relatively complicated, so it is urgently needed to improve on the basis of the existing environmentally friendly maintenance-free fully enclosed ring network cabinet. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide an environmentally friendly maintenance-free fully enclosed ring main unit to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an environmentally friendly maintenance-free fully enclosed ring network cabinet, comprising a cabinet, a support wheel is arranged at the bottom of the cabinet, and a rotating block rotatably connected to the support wheel is rotatably installed in the bottom of the cabinet, and when the support wheel does not protrude from the cabinet, the minimum angle between the rotating block and the ground is 40°, a rotating groove for limiting the rotating block is opened in the cabinet, and the outer wall of the rotating block is in contact with the inner wall of the rotating groove;

[0007] A push block is slidably installed in the bottom of the cabinet, a push wheel for pushing the rotating block is installed at the end of the push block, a reset component for resetting the push block is provided in the bottom of the cabinet, a tooth groove is opened at the other end of the push block, a gear corresponding to the tooth groove is installed in the bottom of the cabinet, a transmission rod connected to the gear is installed in the bottom of the cabinet, and a driving handle is installed at the end of the transmission rod, and a limit component for limiting the driving handle is provided at the bottom of the cabinet.

[0008] By adopting the above technical solution, when it is necessary to horizontally move the cabinet body, only the bottom corners of the cabinet body where the supporting wheels are set need to be lifted, and then the rotating block will automatically start to rotate under the action of the weight of the supporting wheel, universal gravitation and the magnetic repulsion of two groups of magnetic blocks, causing the supporting wheels to protrude from the cabinet body. Then, when the cabinet body is placed back in its original position, the rotating block will be restricted by the weight of the cabinet body and the rotating groove, making it impossible to continue changing the angle. At this time, the worker can push the supporting wheels to adjust the position of the cabinet body. Through the setting of the supporting wheels, the cabinet body is more convenient to move, and at the same time, the operation of placing and taking the round steel is omitted, which is safer and more convenient.

[0009] The present utility model is further configured such that when the rotating block rotates to contact the inner wall on the other side of the rotating groove, the supporting wheels protrude from the bottom of the cabinet body, and at this time, the minimum included angle between the rotating block and the ground is 20°, and at this time, the included angle between the bottom of the cabinet body and the ground is 2°.

[0010] By adopting the above technical solution, it is convenient for the worker to push the cabinet body to adjust its position.

[0011] The present utility model is further configured such that two pushing blocks are symmetrically installed inside the bottom of the cabinet body, and the two corresponding gears are both connected to the transmission rod.

[0012] By adopting the above technical solution, rotating the transmission rod will cause the two groups of gears to rotate synchronously, and further cause the two pushing blocks to push the corresponding rotating blocks synchronously.

[0013] The present utility model is further configured such that the reset assembly is composed of a T-shaped rod and a first spring. The T-shaped rod is slidably installed inside the bottom of the cabinet body, and the end of the T-shaped rod is connected to the pushing block. The first spring is sleeved on the outer wall of the T-shaped rod, and both ends of the first spring are connected to the end of the T-shaped rod and the cabinet body.

[0014] By adopting the above technical solution, it is ensured that the T-shaped rod and the pushing block can be smoothly reset after movement.

[0015] The present utility model is further configured such that the limiting assembly is composed of a limiting block, a second spring and a supporting block. The limiting block is slidably installed on the outer wall of the cabinet body, and the limiting block is composed of a "C"-shaped block and a rectangular block spliced together. Moreover, the top of the bottom end of the limiting block abuts against the bottom of the driving handle, and the bottom end corner of the limiting block is designed as an inclined angle.

[0016] By adopting the above technical solution, the stability of the position of the driving handle when it is not in use is ensured, and the inclined angle of the limiting block can ensure the smooth reset of the driving handle.

[0017] The present utility model is further configured such that a foot groove is opened on the outer wall of the cabinet body, and both the driving handle and the end of the limiting block are located in the foot groove.

[0018] By adopting the above technical solution, it is ensured that the restriction of the driving handle will be released, and at the same time it is ensured that the driving handle can rotate smoothly.

[0019] The utility model is further configured that a spring 2 connected to the limit block is installed in the cabinet, and a support block slidably connected to the limit block is also installed in the cabinet.

[0020] By adopting the above technical solution, it is ensured that after the driving handle is reset, the limit block can return to the original position to limit the driving handle.

[0021] The utility model is further configured that a magnetic block is installed on the outer wall of the rotating block, and a magnetic block corresponding to the magnetic block on the outer wall of the rotating block is also arranged at the position where the rotating slot is opened in the cabinet, and the magnetic block on the outer wall of the rotating block magnetically repels the magnetic block in the cabinet.

[0022] By adopting the above technical solution, it is further ensured that after the bottom angle of the cabinet body on which the supporting wheel is arranged is lifted, the rotating block can smoothly drive the supporting wheel to rotate out of the cabinet body.

[0023] In summary, the utility model mainly has the following beneficial effects:

[0024] The utility model is provided with supporting wheels, rotating blocks, magnetic blocks and rotating grooves, so that when the cabinet needs to be moved horizontally, it is only necessary to lift the bottom angle of the cabinet where the supporting wheels are set, and the rotating blocks will automatically start to rotate under the action of the weight and universal gravitation of the supporting wheels and the magnetic repulsion of the two groups of magnetic blocks, causing the supporting wheels to protrude from the cabinet. When the cabinet is put back to its original position, the rotating blocks will be restricted by the weight of the cabinet and the rotating groove, making it unable to continue to change the angle. At this time, the workers can push the supporting wheels to adjust the position of the cabinet. The setting of the supporting wheels makes the cabinet easier to move, and at the same time eliminates the operation of placing and taking round steel, which is safer and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a structural schematic diagram of a cabinet of the utility model after partial cutaway;

[0027] Figure 3 It is a schematic diagram of the structure of the cabinet of the utility model after being cut open at another angle;

[0028] Figure 4 It is a schematic diagram of the structure of the push block after being cut open;

[0029] Figure 5 This is a schematic diagram of the structure of the support wheel of the utility model protruding out of the cabinet;

[0030] Figure 6 This is a schematic diagram of the structure of the rotating block of the utility model after rotation;

[0031] Figure 7 It is a schematic structural diagram of a cabinet body partially cut away after the rotating block in the second embodiment of the utility model rotates.

[0032] In the figure: 1, cabinet; 2, support wheel; 3, rotating block; 4, rotating groove; 5, pushing block; 6, pushing wheel; 7, tooth groove; 8, gear; 9, transmission rod; 10, driving handle; 101, foot groove; 11, T-shaped rod; 12, spring 1; 13, limit block; 14, spring 2; 15, supporting block; 16, magnetic block. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0034] The following describes an embodiment of the utility model based on its overall structure.

[0035] Embodiment 1

[0036] Environmentally friendly maintenance-free fully enclosed ring main unit, such as Figure 1 - Figure 6As shown, it includes a cabinet 1, a supporting wheel 2 is arranged at the bottom of the cabinet 1, and a rotating block 3 rotatably connected to the supporting wheel 2 is also rotatably installed in the bottom of the cabinet 1, so that the position of the supporting wheel 2 can be adjusted by rotating the rotating block 3, so that the supporting wheel 2 can be moved out of the cabinet 1 when in use, and can be put into the cabinet 1 when not in use, which is convenient for workers to push the cabinet 1, thereby eliminating the operation of placing round steel and changing the position of round steel, making the cabinet 1 more convenient to carry, and when the supporting wheel 2 does not protrude from the cabinet 1, the minimum angle between the rotating block 3 and the ground is 40°, so that when the worker lifts the corner of the cabinet 1 provided with the supporting wheel 2, the rotating block 3 at this time will automatically start to rotate under the action of the weight of the supporting wheel 2 and the universal gravitation, causing the cabinet to move. After one corner of the support wheel 2 is lifted, the support wheel 2 will automatically rotate to a state of protruding from the cabinet 1, so that the support wheel 2 can be easily taken out of the cabinet 1. At the same time, a rotation groove 4 for limiting the rotating block 3 is opened in the cabinet 1 to ensure that the rotating block 3 can rotate smoothly in the cabinet 1. At the same time, because the outer wall of the rotating block 3 is in contact with the inner wall of the rotation groove 4, the angle at which the rotating block 3 can rotate is limited, ensuring that the rotating block 3 will be limited by the rotation groove 4 after rotation. When the rotating block 3 rotates to contact the inner wall of the other side of the rotation groove 4, the support wheel 2 will protrude from the bottom of the cabinet 1. Because the rotation angle of the rotating block 3 is greater than 50°, and when one corner of the cabinet 1 is lifted and then put down, the angle between the bottom of the cabinet 1 and the ground is ≥2°, so that the rotating block 3 after rotation will move to the bottom of the cabinet 1. The cabinet 1 is not provided with a direction inclination of the support wheel 2, so that the angle of the rotating block 3 cannot be rotated under the restriction of the rotating groove 4 and the weight of the cabinet 1, ensuring that the supporting wheel 2 is always in a state of protruding from the cabinet 1, so that it is convenient for workers to push the cabinet 1 to adjust its position. A pushing block 5 is slidably installed in the bottom of the cabinet 1, and a pushing wheel 6 for pushing the rotating block 3 is installed at the end of the pushing block 5, so that when the rotating block 3 is rotated, its outer wall will contact the pushing wheel 6, so that when the supporting wheel 2 needs to be retracted, the bottom angle of the cabinet 1 where the supporting wheel 2 is set is lifted again, and then the pushing block 5 is pushed, so that the pushing wheel 6 starts to push the rotating block 3 and pushes it back to its original position, so that the supporting wheel 2 enters the cabinet 1, ensuring that the supporting wheel 2 can move smoothly after the cabinet 1 moves to the limited position. The cabinet 1 is inserted into the cabinet 1 without affecting the subsequent use of the cabinet 1. A reset component for resetting the push block 5 is provided at the bottom of the cabinet 1. The reset component consists of a T-shaped rod 11 and a spring 12, wherein the T-shaped rod 11 is slidably installed at the bottom of the cabinet 1, and the end of the T-shaped rod 11 is connected to the push block 5, so that the T-shaped rod 11 and the push block 5 can move synchronously. At the same time, the spring 12 is sleeved on the outer wall of the T-shaped rod 11, and the two ends of the spring 12 are connected to the end of the T-shaped rod 11 and the cabinet 1, so that when the T-shaped rod 11 follows the push block 5 to slide in the direction of the rotating block 3, the T-shaped rod 11 will squeeze the spring 12, so that when the push block 5 loses the power to slide toward the rotating block 3, the spring 12 at this time will use its own elastic force to push the T-shaped rod 11 back to its original position.To ensure that the T-shaped rod 11 and the push block 5 can be smoothly reset after movement, a tooth groove 7 is provided at the other end of the push block 5, and a gear 8 corresponding to the tooth groove 7 is installed at the bottom of the cabinet 1. When the gear 8 rotates, it will drive the push block 5 to move through the tooth groove 7, so that the push block 5 can smoothly obtain the power to slide toward the rotating block 3. A transmission rod 9 connected to the gear 8 is installed at the bottom of the cabinet 1, and a driving handle 10 is installed at the end of the transmission rod 9. By rotating the driving handle 10, the transmission rod 9 will drive the gear 8 to rotate, ensuring that the gear 8 can rotate smoothly.

[0037] See also Figure 3 and Figure 6 There are two push blocks 5 symmetrically installed at the bottom of the cabinet 1, so that the two rotating blocks 3 used to support and drive the support wheel 2 to move have corresponding push wheels 6 to push them to reset. At the same time, the gears 8 above the two push blocks 5 are connected to the transmission rod 9, so that rotating the transmission rod 9 can make the two sets of gears 8 rotate synchronously, and then the two push blocks 5 will synchronously push the corresponding rotating blocks 3, thereby further ensuring that the support wheel 2 can be smoothly reset.

[0038] See also Figure 2 - Figure 4 and Figure 6, a limiting component for restricting the driving handle 10 is provided at the bottom of the cabinet body 1. The limiting component is composed of a limiting block 13, a second spring 14 and a supporting block 15. Among them, the limiting block 13 is slidably installed on the outer wall of the cabinet body 1, and the limiting block 13 is composed of a "C"-shaped block and a rectangular block spliced together. Moreover, the top of the bottom end of the limiting block 13 abuts against the bottom of the driving handle 10, so that the bottom of the driving handle 10 will be restricted by the limiting block 13 when not in use, thereby making the driving handle 10 unable to move downward at this time, ensuring the stability of the position of the driving handle 10 when not in use. Moreover, the bottom corner of the bottom end of the limiting block 13 is designed with an inclined angle, so that when the driving handle 10 is reset, the top end thereof will squeeze the inclined angle of the limiting block 13, thereby forcing the limiting block 13 to slide into the cabinet body 1, so that the driving handle 10 can be reset smoothly. At the same time, a foot groove 101 is opened on the outer wall of the cabinet body 1, and both the driving handle 10 and the end of the limiting block 13 are located in the foot groove 101, so that when it is necessary to press the driving handle 10, the worker can insert the toe into the foot groove 101. During this process, the toe of the worker will push the limiting block 13, causing it to slide to a position错开 from the driving handle 10, resulting in the release of the restriction on the driving handle 10. Then the worker uses the toe to step on the driving handle 10 downward, so that it drives the transmission rod 9 to rotate, ensuring that the driving handle 10 can rotate smoothly. And a second spring 14 connected to the limiting block 13 is installed in the cabinet body 1, so that when the limiting block 13 slides into the cabinet body 1, it will squeeze the second spring 14. When the end of the limiting block 13 loses the pushing force, the second spring 14 at this time will push the limiting block 13 back to its original position, ensuring that the limiting block 13 can return to its original position to restrict the driving handle 10 again. And a supporting block 15 slidably connected to the limiting block 13 is also installed in the cabinet body 1, so that when the limiting block 13 slides, it will be restricted by the supporting block 15, ensuring the stability of the limiting block 13 when sliding.

[0039] Embodiment 2

[0040] The environmentally friendly maintenance-free fully enclosed ring main unit, as Figure 1 - Figure 7 shown, the technical solutions and parts of this embodiment are basically the same as those of Embodiment 1. The same technical parts will not be described in detail here. The difference is that a magnetic block 16 is installed on the outer wall of the rotating block 3, so that when the rotating block 3 rotates, it will drive the magnetic block 16 on its outer wall to move synchronously. And at the position where the rotating groove 4 is opened in the cabinet body 1, a magnetic block 16 corresponding to the magnetic block 16 on the outer wall of the rotating block 3 is also provided. Moreover, the magnetic block 16 on the outer wall of the rotating block 3 and the magnetic block 16 in the cabinet body 1 are magnetically repulsive. When the rotating block 3 drives the supporting wheel 2 to rotate into the cabinet body 1, at this time, the magnetic block 16 on the outer wall of the rotating block 3 will be magnetically repulsive to the magnetic block 16 in the cabinet body 1. Thus, when the bottom corner of the cabinet body 1 where the supporting wheel 2 is provided is lifted, the magnetic blocks 16 will push the rotating block 3 to rotate under the action of magnetic repulsion, further ensuring that after the bottom corner of the cabinet body 1 where the supporting wheel 2 is provided is lifted, the rotating block 3 can smoothly drive the supporting wheel 2 to rotate out of the cabinet body 1.

[0041] The working principle of the utility model is as follows: when the cabinet 1 needs to be moved horizontally, the bottom angle of the support wheel 2 is set on the cabinet 1, so that the bottom of the support wheel 2 is separated from the ground. At this time, the restriction imposed by the ground on the support wheel 2 will be released, and at the same time, the rotating block 3 will automatically start to rotate under the action of the weight of the support wheel 2 and the universal gravitation and the magnetic repulsion of the two groups of magnetic blocks 16, so that the support wheel 2 protrudes from the cabinet 1, and then the cabinet 1 is put back to its original position. At this time, the support wheel 2 protrudes from the cabinet 1, making the cabinet 1 in a tilted state. At the same time, because the rotating block 3 is restricted by the weight of the cabinet 1 and the restriction of the rotating groove 4, it cannot continue to change the angle. At this time, the worker can push the supporting wheel 2 to adjust the position of the cabinet 1. Through the setting of the supporting wheel 2, the cabinet 1 is more convenient to move, and the operation of placing and taking round steel is omitted, which is safer and more convenient.

[0042] When the cabinet 1 runs to a suitable position, the cabinet 1 is lifted again to set the bottom angle of the support wheel 2, and then the worker extends his toes into the foot groove 101, so that the limit block 13 is pushed toward the cabinet 1 by the worker's toes, so that the driving handle 10 loses its restriction at this time, and then the worker steps on the driving handle 10 downward, so that the transmission rod 9 drives the gear 8 to start rotating, causing the push block 5 to drive the push wheel 6 to squeeze the rotating block 3. Since the support wheel 2 is now separated from the ground, the position of the rotating block 3 can be adjusted, causing the rotating block 3 to start to reset under the action of the push wheel 6, and then the cabinet 1 is put down again. At this time, the support wheel 2 has been received into the cabinet 1, and the cabinet 1 can be put into use.

[0043] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. An environmentally friendly maintenance-free fully enclosed ring main unit, comprising a cabinet body (1), characterized in that: A support wheel (2) is provided at the bottom of the cabinet body (1), and a rotating block (3) rotatably connected to the support wheel (2) is rotatably installed inside the bottom of the cabinet body (1). When the support wheel (2) does not protrude from the cabinet body (1), the minimum included angle between the rotating block (3) and the ground is 40°. A rotating groove (4) for restricting the rotating block (3) is provided inside the cabinet body (1), and the outer wall of the rotating block (3) is in contact with the inner wall of the rotating groove (4). A push block (5) is slidably installed inside the bottom of the cabinet body (1). A push wheel (6) for pushing the rotating block (3) is installed at the end of the push block (5). A reset assembly for resetting the push block (5) is provided inside the bottom of the cabinet body (1). A tooth groove (7) is provided at the other end of the push block (5). A gear (8) corresponding to the tooth groove (7) is installed inside the bottom of the cabinet body (1). A transmission rod (9) connected to the gear (8) is installed inside the bottom of the cabinet body (1), and a driving handle (10) is installed at the end of the transmission rod (9). A limiting assembly for restricting the driving handle (10) is provided at the bottom of the cabinet body (1).

2. The environmentally friendly maintenance-free fully enclosed ring main unit according to claim 1 is characterized in that: The rotating angle of the rotating block (3) is greater than 50°. When the rotating block (3) rotates to contact the inner wall on the other side of the rotating groove (4), the support wheel (2) protrudes from the bottom of the cabinet body (1), and at this time, the included angle between the bottom of the cabinet body (1) and the ground is ≥2°.

3. The environmentally friendly maintenance-free fully enclosed ring main unit according to claim 1 is characterized in that: Two push blocks (5) are symmetrically installed inside the bottom of the cabinet body (1), and the two corresponding gears (8) are both connected to the transmission rod (9).

4. The environmentally friendly maintenance-free fully enclosed ring main unit according to claim 1 is characterized in that: The reset assembly is composed of a T-shaped rod (11) and a first spring (12). The T-shaped rod (11) is slidably installed inside the bottom of the cabinet body (1), and the end of the T-shaped rod (11) is connected to the push block (5). The first spring (12) is sleeved on the outer wall of the T-shaped rod (11), and both ends of the first spring (12) are connected to the end of the T-shaped rod (11) and the cabinet body (1).

5. The environmentally friendly maintenance-free fully enclosed ring main unit according to claim 1 is characterized in that: The limiting assembly is composed of a limiting block (13), a second spring (14), and a support block (15). The limiting block (13) is slidably installed on the outer wall of the cabinet body (1), and the limiting block (13) is composed of a "C"-shaped block and a rectangular block spliced together. The bottom of the limiting block (13) abuts against the bottom of the driving handle (10), and the bottom corners of the limiting block (13) are designed with bevels.

6. The environmentally friendly maintenance-free fully enclosed ring main unit according to claim 5 is characterized in that: A foot groove (101) is provided on the outer wall of the cabinet body (1), and the ends of the driving handle (10) and the limiting block (13) are both located inside the foot groove (101).

7. The environmentally friendly maintenance-free fully enclosed ring main unit according to claim 5 is characterized in that: A second spring (14) connected to the limiting block (13) is installed inside the cabinet body (1), and a support block (15) slidably connected to the limiting block (13) is also installed inside the cabinet body (1).

8. The environmentally friendly maintenance-free fully enclosed ring main unit according to claim 1 is characterized in that: A magnetic block (16) is installed on the outer wall of the rotating block (3), and a magnetic block (16) corresponding to the magnetic block (16) on the outer wall of the rotating block (3) is also provided at the position where the rotating groove (4) is opened on the cabinet body (1). The magnetic block (16) on the outer wall of the rotating block (3) is magnetically repulsive to the magnetic block (16) inside the cabinet body (1).

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