An intelligent European-style box-type transformer

Abstract

The present invention belongs to the technical field of European box transformers, and in particular to an intelligent European box transformer. Aiming at the problem that the existing technology is easy to cause harm to people around and affect the work efficiency of maintenance personnel, the following scheme is proposed, which includes an internally hollow base and a European box transformer shell, characterized in that the European box transformer shell is fixedly connected to the base, a support plate is fixedly connected to the European box transformer shell, and a control panel is slidably connected to the top of the support plate. By controlling the output shaft of the control motor to rotate, the soft ladder is automatically prevented from descending and extending outside the base, which is convenient for maintenance personnel to climb onto the base. At the same time, the base is set to prevent non-maintenance personnel from approaching, and the control panel of the European box transformer is guided to extend outside the European box transformer shell while the rotating door is opened. There is no need for staff to enter the European box transformer for maintenance, which increases the convenience and safety of the maintenance personnel's work and can effectively improve the maintenance personnel's work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of European-style box-type transformers, and in particular to an intelligent European-style box-type transformer. Background Art

[0002] The European-style box transformers in the prior art are often placed on the ground without effective protection. When a European-style box transformer fails, it is easy to cause harm to people around it, causing unnecessary losses. In addition, it is troublesome for maintenance personnel to carry out maintenance. They need to open the European-style box transformer to enter the interior for maintenance, which increases the danger for maintenance personnel. At the same time, due to the small space inside the European-style box transformer, the work efficiency of maintenance personnel is affected. Therefore, we propose a wine storage and placement device to solve the above-mentioned problems. Summary of the invention

[0003] Based on the background technology, there is a problem that European-style box transformers are often placed on the ground without effective protection. When a European-style box transformer fails, it is easy to cause harm to people around it, causing unnecessary losses. In addition, it is more troublesome for maintenance personnel to carry out maintenance. They need to open the European-style box transformer to enter the interior for maintenance, which increases the danger for maintenance personnel. At the same time, due to the small space inside the European-style box transformer, the work efficiency of maintenance personnel is affected. The present invention proposes an intelligent European-style box transformer.

[0004] The intelligent European box transformer proposed by the present invention comprises a base with a hollow interior and a European box transformer shell, wherein the European box transformer shell is fixedly connected to the base, a support plate is fixedly connected inside the European box transformer shell, a control panel is slidably connected to the top of the support plate, a control motor is fixedly connected to the bottom inner wall of the European box transformer shell, and one end of the output shaft of the control motor passes through the support plate and is fixedly connected to a gear, a movable box is fixedly connected to the left side of the European box transformer shell, a control box is fixedly connected to the top of the European box transformer shell, an extension plate is slidably connected inside the control box, and the top of the extension plate extends outside the control box, a rotating door is rotatably connected to the right side of the control box, and the left side of the rotating door is rotatably connected to the right side of the extension plate, a telescopic tube is fixedly connected to the top inner wall of the base, a support roller is provided on the bottom inner wall of the base, and a soft ladder is sleeved on the outer wall of the support roller, and the right end of the soft ladder is fixedly connected to the inner tube of the telescopic tube, a rotating column is rotatably connected to the top of the support plate, and a guiding mechanism and a control mechanism are provided in the European box transformer shell.

[0005] Preferably, the guiding mechanism comprises a No. 1 rack, a control column, a gear sleeve, a movable column, a T-plate and a guiding belt, the No. 1 rack being fixedly connected to the bottom inner wall of the base, the control column being rotatably connected to the top inner wall of the base, the movable column being slidably connected to the bottom of the support plate, and the bottom of the movable column extending into the base, the gear sleeve being fixedly sleeved on the outer wall of the movable column, and the gear sleeve being meshed with the No. 1 rack, the T-plate being slidably connected to the top inner wall of the base, the guiding belt being fixedly connected to the left side of the T-plate, and one end of the guiding belt being fixedly connected to the outer wall of the movable column, the guiding belt being in contact with the outer wall of the control column, and by setting up the guiding mechanism, the guiding mechanism can control the inner tube of the telescopic tube to descend and extend outside the base, thereby synchronously controlling the soft ladder to descend, making it convenient for the staff to climb onto the base to inspect and repair the European-type box transformer.

[0006] Preferably, the right side of the T-shaped plate is rotatably connected to a rotating wheel, the left side of the inner tube of the telescopic tube is fixedly connected to a trapezoidal plate, and the inclined surface of the trapezoidal plate is in contact with the rotating wheel, and the left side of the T-shaped plate is fixedly connected to a No. 1 spring, and one end of the No. 1 spring is fixedly connected to the top inner wall of the base, and cooperates with the trapezoidal plate through the rotating wheel. When the rotating wheel moves with the T-shaped plate, the rotating wheel controls the trapezoidal plate to descend through the inclined surface of the trapezoidal plate, and when the trapezoidal plate descends, the trapezoidal plate can synchronously control the inner tube of the telescopic tube to descend.

[0007] Preferably, the control mechanism includes a No. 2 rack, a threaded tube, a threaded column, a hollow plate, a control plate, a connecting plate, an adapter plate, a push plate and a pull belt. The No. 2 rack is slidably connected to the top of the support plate, and the left side of the No. 2 rack extends into the movable box, the No. 2 rack is meshed with the gear, the threaded tube is rotatably connected to the left inner wall of the movable box, and the right end of the threaded tube extends into the European box transformer shell, the threaded column is threadedly connected in the threaded tube, the hollow plate is fixedly connected to the left inner wall of the European box transformer shell, the control plate is slidably connected in the hollow plate, and the left side of the control plate is fixedly connected to the right end of the threaded column. The connecting plate is rotatably connected to the top of the control panel, the adapter plate is slidably connected to the left inner wall of the European box transformer shell, and the top of the adapter plate extends into the control box, the bottom of the adapter plate is rotatably connected to the top of the connecting plate, the push plate is rotatably connected to the bottom of the adapter plate, and the bottom of the push plate is rotatably connected to the top of the control panel, the pull belt is fixedly connected to the right side of the adapter plate, and one end of the pull belt is fixedly connected to the left side of the extension plate. By setting a control mechanism, the control mechanism can automatically control the opening of the rotating door and push the control panel to extend outside the European box transformer shell to facilitate maintenance personnel to carry out maintenance.

[0008] Preferably, a threaded ring is fixedly connected to the top of the No. 2 rack, and the threaded ring is threadedly sleeved on the outer wall of the threaded tube. The threaded ring moves with the movement of the No. 2 rack. When the threaded ring moves, the threaded ring can control the rotation of the threaded tube through its own thread, thereby controlling the movement of the threaded column.

[0009] Preferably, an auxiliary wheel is provided on the bottom inner wall of the base, and the outer wall of the auxiliary wheel is in contact with the soft ladder. The auxiliary wheel contacts with the soft ladder to facilitate the auxiliary soft ladder to descend as the inner tube of the telescopic tube moves and extend outside the base.

[0010] Preferably, the outer wall of the control motor output shaft, the outer wall of the rotating column and the outer wall of the movable column are sleeved with the same belt, and the belt serves to connect the control motor output shaft, the rotating column and the movable column. When the output shaft of the control motor rotates, the output shaft of the control motor can control the belt to rotate. When the belt rotates, the belt can synchronously control the movable column to rotate through friction, thereby driving the gear sleeve to rotate.

[0011] Preferably, a No. 2 spring is fixedly connected to the right side of the extension plate, and one end of the No. 2 spring is fixedly connected to the right inner wall of the control box, and a No. 3 spring is fixedly connected to the left side of the rotating door, and one end of the No. 3 spring is fixedly connected to the top of the extension plate. By arranging the No. 2 spring and the No. 3 spring, the extension plate can be pulled back to its position by the elastic force of the No. 2 spring, and the rotating door can be controlled to close by the elastic force of the No. 3 spring, so as to facilitate the subsequent protection of the control panel.

[0012] The beneficial effects of the present invention are:

[0013] 1. The output shaft of the control motor is controlled to rotate, and the output shaft of the control motor controls the movable column to rotate through the belt. At this time, the movable column controls the gear sleeve to cooperate with the No. 1 rack to control the movable column to move to the right. At the same time, the movable column pulls the rod T-plate to move to the left through the guide belt, and the T-plate drives the rotating wheel to move. At this time, the rotating wheel cooperates with the inclined surface of the trapezoidal plate to control the trapezoidal plate to descend. At the same time, the trapezoidal plate synchronously drives the inner tube of the telescopic tube to descend synchronously. At this time, the telescopic tube pulls the soft ladder to descend and extends to the outside of the base, which is convenient for maintenance personnel to climb onto the base through the hose;

[0014] 2. As the output shaft of the control motor rotates, the output shaft of the control motor controls the second rack to move to the left through the gear. At this time, the second rack controls the threaded ring to move, and the threaded ring controls the threaded column to move to the left through the threaded tube. At this time, the threaded column drives the control board to move to the left synchronously. At the same time, the control board pulls the adapter plate to descend synchronously through the connecting plate. At this time, the adapter plate controls the pulling belt to move, and the pulling belt pulls the extension plate to move to the left synchronously. At this time, the extension plate pulls the rotating door to rotate and open;

[0015] 3. As the adapter plate descends, the adapter plate pushes the push plate to move. At this time, the push plate pushes the control panel to move to the right, guiding the control panel to extend outside the European-style box-type transformer casing, making it easier for maintenance personnel to carry out maintenance.

[0016] By controlling the output shaft of the control motor to rotate, the soft ladder can be automatically prevented from descending and extending outside the base, which is convenient for maintenance personnel to climb onto the base. At the same time, the base is set to prevent non-maintenance personnel from approaching and causing injuries. As the output shaft of the control motor rotates, the control door is controlled to open and guide the control panel of the European-style box-type transformer to extend outside the European-style box-type transformer shell. There is no need for staff to enter the European-style box-type transformer for maintenance, which increases the convenience and safety of the maintenance personnel's work and can effectively improve the efficiency of the maintenance personnel's work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural cross-sectional view of an intelligent European-style box-type transformer proposed by the present invention;

[0018] Figure 2 This is a structural schematic diagram of a guide mechanism of an intelligent European-style box-type transformer proposed by the present invention;

[0019] Figure 3 This is a structural schematic diagram of a control mechanism of an intelligent European-style box-type transformer proposed by the present invention;

[0020] Figure 4 This is a top view of the structure of the support rollers, auxiliary wheels, telescopic tubes and soft ladder of an intelligent European box-type transformer proposed by the present invention;

[0021] Figure 5 This is a three-dimensional structural diagram of the control panel, adapter plate and push plate of an intelligent European box-type transformer proposed by the present invention.

[0022] In the figure: 1. European box transformer shell; 2. Control motor; 3. Support plate; 4. Gear; 5. Control panel; 6. Base; 7. Support roller; 8. Auxiliary wheel; 9. Telescopic tube; 10. Trapezoidal plate; 11. Control column; 12. T-plate; 13. Guide belt; 14. No. 1 spring; 15. Soft ladder; 16. No. 1 rack; 17. Movable column; 18. Gear sleeve; 19. Belt; 20. No. 2 rack; 21. Threaded pipe; 22. Threaded column; 23. Movable box; 24. Threaded ring; 25. Control box; 26. Rotating door; 27. Hollow plate; 28. Control board; 29. ​​Connecting plate; 30. Adapter plate; 31. Push plate; 32. Pull belt; 33. Extension plate; 34. No. 2 spring; 35. No. 3 spring; 36. Rotating column. DETAILED DESCRIPTION

[0023] The present invention will be further explained below in conjunction with specific embodiments.

[0024] refer to Figure 1-5 In this embodiment, an intelligent European-style box transformer is proposed, including a base 6 with a hollow interior and a European-style box transformer shell 1, the European-style box transformer shell 1 is fixedly connected to the base 6 by welding, a support plate 3 is fixedly connected to the European-style box transformer shell 1 by welding, and a control panel 5 is slidably connected to the top of the support plate 3 by a slide rail, a control motor 2 is fixedly connected to the bottom inner wall of the European-style box transformer shell 1 by welding, and one end of the output shaft of the control motor 2 passes through the support plate 3 and is fixedly connected to the gear 4 by welding, a movable box 23 is fixedly connected to the left side of the European-style box transformer shell 1 by welding, a control box 25 is fixedly connected to the top of the European-style box transformer shell 1 by welding, an extension plate 33 is slidably connected to the control box 25 by a slide rail, and the top of the extension plate 33 extends to the control box 2 5, the right side of the control box 25 is rotatably connected with a revolving door 26 through a rotating shaft, and the left side of the revolving door 26 is rotatably connected with the right side of the extension plate 33 through a rotating shaft. The revolving door 26 moves with the extension plate 33, and the extension plate 33 can pull the revolving door 26 to rotate, thereby controlling the opening and closing of the revolving door 26. The top inner wall of the base 6 is fixedly connected with a telescopic tube 9 by welding, and the bottom inner wall of the base 6 is provided with a supporting roller 7, and the outer wall of the supporting roller 7 is sleeved with a flexible ladder 15, and the right end of the flexible ladder 15 is fixedly connected with the inner tube of the telescopic tube 9 by welding. The flexible ladder 15 can be pulled down by the movement of the inner tube of the telescopic tube 9, and the top of the support plate 3 is rotatably connected with a rotating column 36 through a rotating shaft, and a guiding mechanism and a control mechanism are provided in the European box transformer housing 1;

[0025] The guide mechanism includes a number one rack 16, a control column 11, a gear sleeve 18, a movable column 17, a T-shaped plate 12 and a guide belt 13. The number one rack 16 is fixedly connected to the bottom inner wall of the base 6 by welding, the control column 11 is rotatably connected to the top inner wall of the base 6 by a rotating shaft, the movable column 17 is slidably connected to the bottom of the support plate 3 by a slide rail, and the bottom of the movable column 17 extends into the base 6, the support plate 3 plays a role in limiting the lateral movement of the movable column 17, the gear sleeve 18 is fixedly sleeved on the outer wall of the movable column 17, and the gear sleeve 18 is meshed with the number one rack 16, the T-shaped plate 12 is slidably connected to the bottom of the support plate 3 by a slide rail, and the bottom of the movable column 17 extends into the base 6, the support plate 3 plays a role in limiting the lateral movement of the movable column 17, the gear sleeve 18 is fixedly sleeved on the outer wall of the movable column 17, and the gear sleeve 18 is meshed with the number one rack 16, and the T-shaped plate 12 is slidably connected to the bottom of the support plate 3 by a slide rail. The rail is slidably connected to the top inner wall of the base 6, the guide belt 13 is fixedly connected to the left side of the T-shaped plate 12 by welding, and one end of the guide belt 13 is fixedly connected to the outer wall of the movable column 17 by welding, and the guide belt 13 is in contact with the outer wall of the control column 11. When the movable column 17 moves, the movable column 17 can move synchronously with the T-shaped plate 12 through the guide belt 13. By setting a guide mechanism, the guide mechanism can control the inner tube of the telescopic tube 9 to descend and extend to the outside of the base 6, thereby synchronously controlling the soft ladder 15 to descend, so that the staff can climb up the base 6 to inspect the European box transformer;

[0026] The right side of the T-shaped plate 12 is rotatably connected to a rotating wheel through a rotating shaft, and the left side of the inner tube of the telescopic tube 9 is fixedly connected to a trapezoidal plate 10 by welding, and the inclined surface of the trapezoidal plate 10 is in contact with the rotating wheel, and the left side of the T-shaped plate 12 is fixedly connected to a No. 1 spring 14 by welding, and one end of the No. 1 spring 14 is fixedly connected to the top inner wall of the base 6 by welding, and the rotating wheel cooperates with the trapezoidal plate 10. When the rotating wheel moves with the T-shaped plate 12, the rotating wheel controls the trapezoidal plate 10 to descend through the inclined surface of the trapezoidal plate 10, and when the trapezoidal plate 10 descends, the trapezoidal plate 10 can synchronously control the inner tube of the telescopic tube 9 to descend;

[0027] The control mechanism includes a No. 2 rack 20, a threaded tube 21, a threaded column 22, a hollow plate 27, a control panel 28, a connecting plate 29, an adapter plate 30, a push plate 31 and a pull belt 32. The No. 2 rack 20 is slidably connected to the top of the support plate 3 through a slide rail, and the left side of the No. 2 rack 20 extends into the movable box 23. The No. 2 rack 20 is meshed with the gear 4. The threaded tube 21 is rotatably connected to the left inner wall of the movable box 23 through a rotating shaft, and the right end of the threaded tube 21 extends into the European box transformer housing 1. The threaded column 22 is threadedly connected in the threaded tube 21. The hollow plate 27 is fixedly connected to the left inner wall of the European box transformer housing 1 by welding. The control panel 28 is slidably connected in the hollow plate 27 through a slide rail, and the left side of the control panel 28 is fixedly connected to the right end of the threaded column 22 by welding. The connecting plate 29 is rotatably connected to the top of the control panel 28 through a rotating shaft, the adapter plate 30 is slidably connected to the left inner wall of the European-style box transformer housing 1 through a slide rail, and the top of the adapter plate 30 extends into the control box 25, the bottom of the adapter plate 30 is rotatably connected to the top of the connecting plate 29 through a rotating shaft, the push plate 31 is rotatably connected to the bottom of the adapter plate 30 through a rotating shaft, and the bottom of the push plate 31 is rotatably connected to the top of the control panel 5 through a rotating shaft, the pulling belt 32 is fixedly connected to the right side of the adapter plate 30 by welding, and one end of the pulling belt 32 is fixedly connected to the left side of the extension plate 33 by welding. By setting a control mechanism, the control mechanism can realize automatic control of the rotating door 26 to open, and at the same time, it can push the control panel 5 to extend outside the European-style box transformer housing 1 to facilitate maintenance personnel to perform maintenance;

[0028] The top of the second rack 20 is fixedly connected with a threaded ring 24 by welding, and the threaded ring 24 is threadedly sleeved on the outer wall of the threaded tube 21. The threaded ring 24 moves with the movement of the second rack 20. When the threaded ring 24 moves, the threaded ring 24 can control the threaded tube 21 to rotate through its own threads, thereby controlling the threaded column 22 to move;

[0029] The bottom inner wall of the base 6 is provided with an auxiliary wheel 8, and the outer wall of the auxiliary wheel 8 is in contact with the soft ladder 15. The auxiliary wheel 8 is in contact with the soft ladder 15, so that the auxiliary soft ladder 15 can be lowered along with the movement of the inner tube of the telescopic tube 9 and extended to the outside of the base 6;

[0030] The outer wall of the output shaft of the control motor 2, the outer wall of the rotating column 36 and the outer wall of the movable column 17 are sleeved with the same belt 19, which serves to connect the output shaft of the control motor 2, the rotating column 36 and the movable column 17. When the output shaft of the control motor 2 rotates, the output shaft of the control motor 2 can control the belt 19 to rotate. When the belt 19 rotates, the belt 19 can synchronously control the movable column 17 to rotate through friction, thereby driving the gear sleeve 18 to rotate;

[0031] The right side of the extension plate 33 is fixedly connected with a No. 2 spring 34 by welding, and one end of the No. 2 spring 34 is fixedly connected to the right inner wall of the control box 25 by welding, and the left side of the rotating door 26 is fixedly connected with a No. 3 spring 35 by welding, and one end of the No. 3 spring 35 is fixedly connected to the top of the extension plate 33 by welding. By arranging the No. 2 spring 34 and the No. 3 spring 35, the extension plate 33 can be pulled back by the elastic force of the No. 2 spring 34, and the rotating door 26 can be controlled to close by the elastic force of the No. 3 spring 35, so as to facilitate the subsequent protection of the control panel 5.

[0032] Working principle: In actual operation, the output shaft of the control motor 2 is controlled to rotate, and the output shaft of the control motor 2 controls the belt 19 to rotate. When the belt 19 rotates, the belt 19 controls the movable column 17 to rotate through the friction force through the rotation of the belt 19. At this time, as the movable column 17 rotates, the movable column 17 synchronously controls the gear sleeve 18 to rotate. When the gear sleeve 18 rotates, the gear sleeve 18 cooperates with the first rack 16 to control the movable column 17 to move to the right. At the same time, as the movable column 17 moves, the movable column 17 pulls the guide belt 13 to move. At this time, as the guide belt 13 moves, the movable column 17 pulls the guide belt 13 to move. The guide belt 13 moves, and the guide belt 13 pulls the rod T-shaped plate 12 to move to the left. When the T-shaped plate 12 moves, the T-shaped plate 12 drives the rotating wheel to move. At this time, the rotating wheel cooperates with the inclined surface of the trapezoidal plate 10 to control the trapezoidal plate 10 to descend. When the trapezoidal plate 10 descends, the trapezoidal plate 10 synchronously drives the inner tube of the telescopic tube 9 to descend synchronously. At this time, as the inner tube of the telescopic tube 9 descends, the telescopic tube 9 pulls the soft ladder 15 to descend and extend to the outside of the base 6, which is convenient for maintenance personnel to climb onto the base 6 through the hose, and as the output shaft of the control motor 2 rotates, the output shaft of the control motor 2 controls the gear 4 rotates, when the gear 4 rotates, the gear 4 controls the second rack 20 to move leftward through the tooth pattern, at this time, with the movement of the second rack 20, the second rack 20 controls the threaded ring 24 to move, when the threaded ring 24 moves, the threaded ring 24 controls the threaded tube 21 to rotate through the thread, when the threaded tube 21 rotates, the threaded tube 21 controls the threaded column 22 to move leftward through the thread of its inner wall, with the movement of the threaded column 22, the threaded column 22 drives the control board 28 to move leftward synchronously, when the control board 28 moves, the control board 28 pulls the connecting plate 29 to move The adapter plate 30 moves, and the connecting plate 29 synchronously pulls the adapter plate 30 down. When the adapter plate 30 moves, the adapter plate 30 controls the pulling belt 32 to move, and the pulling belt 32 synchronously pulls the extension plate 33 to move to the left. At this time, with the movement of the extension plate 33, the extension plate 33 pulls the rotating door 26 to rotate and open, and with the decline of the adapter plate 30, the adapter plate 30 pushes the push plate 31 to move. At this time, with the movement of the push plate 31, the push plate 31 pushes the control panel 5 to move to the right, guiding the control panel 5 to extend outside the European-style box transformer casing 1, so as to facilitate maintenance personnel to carry out maintenance.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent European-style box transformer, comprising a base (6) with a hollow interior and a European-style box transformer housing (1), characterized in that: The European-style box transformer housing (1) is fixedly connected to the base (6); a support plate (3) is fixedly connected inside the European-style box transformer housing (1); a control panel (5) is slidably connected to the top of the support plate (3); a control motor (2) is fixedly connected to the bottom inner wall of the European-style box transformer housing (1); one end of the output shaft of the control motor (2) passes through the support plate (3) and is fixedly connected to a gear (4); a movable box (23) is fixedly connected to the left side of the European-style box transformer housing (1); a control box (25) is fixedly connected to the top of the European-style box transformer housing (1); an extension plate (33) is slidably connected inside the control box (25); the top of the extension plate (33) extends to the outside of the control box (25); the right side of the control box (25) is rotated A rotating door (26) is connected, and the left side of the rotating door (26) is rotatably connected to the right side of the extension plate (33); the top inner wall of the base (6) is fixedly connected to a telescopic tube (9); the bottom inner wall of the base (6) is provided with a support roller (7), and the outer wall of the support roller (7) is provided with a soft ladder (15), and the right end of the soft ladder (15) is fixedly connected to the inner tube of the telescopic tube (9); the top of the support plate (3) is rotatably connected to a rotating column (36); a guide mechanism and a control mechanism are provided in the European box transformer housing (1); the guide mechanism comprises a No. 1 rack (16), a control column (11), a gear sleeve (18), a movable column (17), a T-shaped plate (12) and a guide belt (13); the No. 1 rack (16) is fixedly connected to The bottom inner wall of the base (6), the control column (11) is rotatably connected to the top inner wall of the base (6), the movable column (17) is slidably connected to the bottom of the support plate (3), and the bottom of the movable column (17) extends into the base (6), the gear sleeve (18) is fixedly sleeved on the outer wall of the movable column (17), and the gear sleeve (18) is meshed with the first rack (16), the T-shaped plate (12) is slidably connected to the top inner wall of the base (6), the guide belt (13) is fixedly connected to the left side of the T-shaped plate (12), and one end of the guide belt (13) is fixedly connected to the outer wall of the movable column (17), the guide belt (13) is in contact with the outer wall of the control column (11), and the right side of the T-shaped plate (12) is rotatably connected to a rotating wheel, The left side of the inner tube of the telescopic tube (9) is fixedly connected to a trapezoidal plate (10), and the inclined surface of the trapezoidal plate (10) contacts the rotating wheel. The left side of the T-shaped plate (12) is fixedly connected to a No. 1 spring (14), and one end of the No. 1 spring (14) is fixedly connected to the top inner wall of the base (6). The control mechanism comprises a No. 2 rack (20), a threaded tube (21), a threaded column (22), a hollow plate (27), a control plate (28), a connecting plate (29), an adapter plate (30), a push plate (31) and a pulling belt (32). The No. 2 rack (20) is slidably connected to the top of the support plate (3), and the left side of the No. 2 rack (20) extends into the movable box (23). The No. 2 rack (20) is meshed with the gear (4).The threaded tube (21) is rotatably connected to the left inner wall of the movable box (23), and the right end of the threaded tube (21) extends into the European box transformer housing (1), the threaded column (22) is threadedly connected in the threaded tube (21), the hollow plate (27) is fixedly connected to the left inner wall of the European box transformer housing (1), the control panel (28) is slidably connected in the hollow plate (27), and the left side of the control panel (28) is fixedly connected to the right end of the threaded column (22). The connecting plate (29) is rotatably connected to the top of the control panel (28), the adaptor plate (30) is slidably connected to the left inner wall of the European-style box transformer housing (1), and the top of the adaptor plate (30) extends into the control box (25), the bottom of the adaptor plate (30) is rotatably connected to the top of the connecting plate (29), the push plate (31) is rotatably connected to the bottom of the adaptor plate (30), and the bottom of the push plate (31) is rotatably connected to the top of the control panel (5). The pull belt (32) is fixedly connected to the right side of the adapter plate (30), and one end of the pull belt (32) is fixedly connected to the left side of the extension plate (33). The top of the No. 2 rack (20) is fixedly connected with a threaded ring (24), and the threaded ring (24) is threadedly sleeved on the outer wall of the threaded tube (21). The bottom inner wall of the base (6) is provided with an auxiliary wheel (8), and the outer wall of the auxiliary wheel (8) is in contact with the ladder (15). The outer wall of the output shaft of the control motor (2) and the outer wall of the rotating column (36) and the outer wall of the movable column (17) are sleeved with the same belt (19). The right side of the extension plate (33) is fixedly connected with a No. 2 spring (34), and one end of the No. 2 spring (34) is fixedly connected to the right inner wall of the control box (25). The left side of the rotating door (26) is fixedly connected with a No. 3 spring (35), and one end of the No. 3 spring (35) is fixedly connected to the top of the extension plate (33).

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