A conveying device for wind power tower production

Abstract

This invention relates to the field of conveying device technology, specifically a conveying device for wind turbine tower production, comprising: a rail conveyor for conveying tower sections; a support rail for supporting and guiding the rail conveyor, allowing the rail conveyor to move along the support rail; an adaptive tower section support and limiting component mounted on the rail conveyor for supporting and limiting the tower sections; and two sets of rotating support plates on the rail conveyor. During the placement of the tower sections on the rail conveyor, the rotating support plates rotate under the pressure of the tower sections to adapt to the diameter of the tower sections. The rotating support plates support and limit both ends of the tower sections, ensuring stable placement on the rail conveyor for conveying. The rotating design of the rotating support plates allows it to adapt to tower sections of different diameters, which is very convenient.

Description

Technical Field

[0001] This invention relates to the field of conveying device technology, specifically a conveying device for the production of wind turbine towers. Background Technology

[0002] Wind turbine towers are manufactured by dividing the entire structure into sections, which are then connected by flanges to form a complete tower. During production, these sections undergo longitudinal welding, rust removal, and painting. While railcars offer strong load-bearing capacity and stable transport, they have limitations. Because the tower is conical, the diameters of the sections differ, and even among different sections, the existing railcars cannot adaptively support and limit the movement based on the section diameter. This restricts transport options, requiring different railcars or loading fixtures for transporting sections of varying sizes, leading to cumbersome operations and higher transportation costs. Summary of the Invention

[0003] The purpose of this invention is to provide a conveying device for the production of wind turbine towers, in order to solve the problem mentioned in the background art that existing railcars cannot adaptively support and limit the diameter of the tower sections.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A conveying device for wind turbine tower production includes: a rail conveyor vehicle for conveying tower sections; A support track supports and guides the rail transport vehicle, allowing the rail transport vehicle to move along the support track; An adaptive cylindrical section support and limiting assembly is installed on a rail conveyor vehicle to support and limit the cylindrical section. An adaptive auxiliary support assembly is also installed on the rail conveyor vehicle, providing auxiliary support to the cylinder section from below. The locking component is connected to the adaptive auxiliary support component. The adaptive auxiliary support component drives the adaptive cylinder section support limiting component to lock it, ensuring the stability of the cylinder section support.

[0005] Furthermore, the adaptive cylindrical section support limiting assembly includes: a rotating support plate, wherein there are two sets of rotating support plates, which are symmetrically and movably installed at both ends of the rail conveyor vehicle; A reset movable plate is provided, which contacts the rotating support plate and supports the rotating support plate. A supporting movable block is movably connected to a reset movable plate, and the reset movable plate drives the supporting movable block to move.

[0006] Furthermore, the cylindrical section is supported by a rotating support plate, and the rotating support plate supports cylindrical sections of different sizes by rotating.

[0007] Furthermore, when the reset movable plate moves upward, it drives the rotating support plate to reset.

[0008] Furthermore, the adaptive auxiliary support assembly includes a hydraulic rod, which is fixedly installed on the rail transport vehicle; A movable support plate is fixedly installed on a hydraulic rod, and the hydraulic rod drives the movable support plate to move up and down. A support curved surface is movably mounted on a movable support plate, providing auxiliary support to the cylindrical section. Two inclined limiting strips are symmetrically installed at both ends of the movable support plate to limit the movement of the cylinder section.

[0009] Furthermore, when the movable support plate moves upward, it causes the support curved surface to come into contact with the cylindrical section, providing auxiliary support.

[0010] Furthermore, the supporting curved surface is movably connected to a movable mating plate, and when the supporting curved surface and the movable supporting plate move relative to each other, the movable mating plate moves accordingly.

[0011] Furthermore, the locking assembly is a locking plate, which is movably connected to the movable support plate. When the movable support plate moves up and down, it drives the locking plate to move as well.

[0012] Furthermore, a protruding support plate is fixedly provided on the locking support plate, and an anti-movement mating post is fixedly provided on the protruding support plate.

[0013] Furthermore, the anti-motion mating column cooperates with the support movable block to lock the support movable block, thereby achieving stable support for the rotating support plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a reasonable structural design and strong functionality, and has the following advantages: 1. Two sets of rotating support plates are installed on the rail conveyor. During the process of placing the cylindrical section on the rail conveyor, the rotating support plates can be rotated under the compression of the cylindrical section to match the diameter of the cylindrical section. The rotating support plates support and limit the two ends of the cylindrical section, so that it can be stably placed on the rail conveyor for transportation. The rotating setting of the rotating support plates allows it to adapt to cylindrical sections of different diameters, which is very convenient.

[0015] 2. After the cylinder section is hoisted and lowered, the hydraulic rods are activated to move the movable support plates upward. Under the action of the support curved plates, the cylinder section is provided with auxiliary support from below. Multiple support curved plates are provided, and each support curved plate can be moved independently to adapt to the taper of the cylinder section, ensuring the support effect.

[0016] 3. In addition, when the movable support plate moves upward, it will drive the locking bearing plate to move. Under the action of the locking bearing plate, the movable support block can be locked, thereby making the rotating support plate in a stable state and ensuring the support strength of the cylinder section. The locking bearing plate can lock the movable support block in multiple positions to adapt to cylinder sections of different diameters. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the cylindrical section being lowered onto the rail transport vehicle.

[0018] Figure 2 This is a schematic diagram showing the interaction between the rail transport vehicle and the supporting rails.

[0019] Figure 3 This is a schematic diagram of the assembly of the rail transport vehicle.

[0020] Figure 4 This is an assembly diagram of the rail transport vehicle, movable support plates, and locking bearing plates.

[0021] Figure 5 This is a structural diagram of the rail transport vehicle and the movable support plate.

[0022] Figure 6 This is a schematic diagram of the assembly of the movable support strip.

[0023] Figure 7 This is an assembly diagram of the rotating support plate, the reset movable plate, and the support movable block.

[0024] Figure 8 An assembly diagram showing the support for the curved surface and the movable connecting plate.

[0025] Figure 9 This is a schematic diagram of the inclined plane limiting strip.

[0026] Figure 10 This is a structural schematic diagram of the locking bearing plate.

[0027] In the diagram: 1. Rail conveyor; 11. Support hinge; 12. Limiting frame; 13. Limiting block; 14. Supporting protrusion; 15. Limiting channel; 16. Moving support guide rod; 17. First support column; 18. First support cavity; 2. Support rail; 3. Hydraulic rod; 4. Movable support plate; 41. Movable cavity; 42. Movable insertion hole; 43. Second support column; 44. Second support cavity; 45. Supporting boss; 451. Supporting guide rod; 46. Extension connecting plate frame; 47. First driving linkage rod; 5. Rotating support plate; 51. Supporting roller; 6. Reset movable plate; 61. Contact wheel; 62. 63. First mating post; 64. First return spring; 7. Second driving linkage rod; 8. Support movable block; 9. Movable through hole; 10. Locking support bar; 11. Mating lock track; 12. Support curved surface; 13. Second mating post; 14. Second return spring; 15. First mating boss; 16. Third driving linkage rod; 17. Movable mating support plate; 18. Movable mating through hole; 19. Second mating boss; 20. Inclined limiting bar; 11. Mating protrusion; 12. Limiting mating rod; 13. Mating stop block; 14. Third return spring; 15. Locking support plate; 16. Mounting support rod; 17. Protruding support plate; 18. Anti-movement mating post; 19. Connecting support bar. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] This invention provides a technical solution: like Figure 1 , Figure 2 and Figure 3As shown, a conveying device for wind turbine tower production includes: a rail conveyor 1, a support rail 2, an adaptive tower section support and limiting assembly, an adaptive auxiliary support assembly, and a locking assembly. The rail conveyor 1 is used to convey tower sections, ensuring smooth transfer between various processes. The support rail 2 supports and guides the rail conveyor 1, allowing it to move along the support rail 2 and ensuring the stability and accuracy of its movement. The adaptive tower section support and limiting assembly is installed on the rail conveyor 1, supporting and limiting the tower sections. The adaptive cylindrical section support and limiting component can adjust itself according to the size of the cylindrical section and adapt to its diameter, satisfying the support and limiting of cylindrical sections of different diameters. The adaptive auxiliary support component is also installed on the rail conveyor 1, providing auxiliary support from below the cylindrical section. The adaptive auxiliary support component can adapt to the tapered shape of the cylindrical section itself, providing good auxiliary support. It is connected to the locking component and the adaptive auxiliary support component. The adaptive auxiliary support component drives the adaptive cylindrical section support and limiting component to lock it, ensuring the stability of its support for the cylindrical section and thus ensuring the smooth transportation of the cylindrical section.

[0030] like Figure 5 As shown, two sets of supporting hinge frames 11 are symmetrically welded and fixed at both ends of the track transport vehicle 1, and there are two supporting hinge frames 11 in each set, which are symmetrically arranged on both sides of the track transport vehicle 1. A limiting frame 12 is welded and fixed on the supporting hinge frame 11 by welding process. A limiting block 13 is welded and fixed on the upper end of the limiting frame 12 by welding process. The surface of the limiting block 13 is smooth and burr-free. In addition, a supporting protrusion plate 14 is welded and fixed on the track transport vehicle 1 next to the supporting hinge frame 11 by welding process. A limiting channel 15 is opened on the supporting support protrusion plate 14. A movable supporting guide rod 16 is welded and fixed between the supporting support protrusion plate 14 and the supporting hinge frame 11 by welding process. Furthermore, a first supporting column 17 is welded and fixed on the track transport vehicle 1 between the supporting hinge frame 11 and the supporting protrusion plate 14 by welding process. A first supporting cavity 18 is opened on the first supporting column 17.

[0031] like Figure 3 and Figure 7As shown, the adaptive cylindrical section support and limiting assembly includes: a rotating support plate 5, a reset movable plate 6, and a support movable block 7. The rotating support plate 5 consists of two sets, symmetrically and movably installed at both ends of the rail conveyor 1. Specifically, the lower end of the rotating support plate 5 is hinged to the support engagement hinge frame 11, which supports the rotating support plate 5. A support engagement roller 51 is installed on the rotating support plate 5. When the cylindrical section is lowered onto the rail conveyor 1, the cylindrical section contacts the support engagement roller 51, and the rotating support plate 5 supports the cylindrical section. The rotating support plate 5 can support cylindrical sections of different sizes by rotating. The setting of the support engagement roller 51 changes the sliding friction between the cylindrical section and the rotating support plate 5 into rolling friction, reducing the friction between the rotating support plate 5 and the cylindrical section and avoiding scratches on the cylindrical section. In addition, when the cylindrical section is not lowered onto the rotating support plate 5, the upper end surface of the rotating support plate 5 contacts the limiting stop block 13 on the limiting engagement frame 12, which limits the rotating support plate 5.

[0032] The reset movable plate 6 contacts the rotating support plate 5, and supports the rotating support plate 5 through the reset movable plate 6. Specifically, a contact wheel 61 is movably installed on the reset movable plate 6, and the contact wheel 61 contacts the lower end face of the rotating support plate 5. In this way, when the rotating support plate 5 rotates, the contact wheel 61 can convert the sliding friction between the rotating support plate 5 and the reset movable plate 6 into rolling friction, making the rotating support plate 5 rotate more smoothly.

[0033] A first mating pin 62 is welded to the lower end of the reset movable plate 6. The first mating pin 62 is inserted into the first support cavity 18 on the first support column 17. The mating pin 62 and the first support cavity 18 cooperate to limit and guide the first mating pin 62, thereby limiting the reset movable plate 6. This allows the first mating pin 62 to move up and down only along the first support cavity 18. In addition, a first reset spring 63 is sleeved on the first mating pin 62. The upper end of the first reset spring 63 is welded to the lower end surface of the reset movable plate 6, and the lower end of the first reset spring 63 is welded to the upper end surface of the first support column 17.

[0034] A second driving linkage rod 64 is hinged to the reset movable plate 6. A movable through hole 71 is symmetrically opened on the support movable block 7. A movable support guide rod 16 is inserted into the movable through hole 71. The movable support guide rod 16 supports and guides the support movable block 7, so that the support movable block 7 can only move along the movable support guide rod 16. A locking support strip 72 is welded and fixed to the upper end of the support movable block 7 by welding process. The locking support strip 72 has a matching locking channel 73 and is hinged to the lower end of the second driving linkage rod 64. The second driving linkage rod 64 realizes the movable connection between the support movable block 7 and the reset movable plate 6. When the reset movable plate 6 moves up and down, the support movable block 7 can be moved by the reset movable plate 6 under the action of the second driving linkage rod 64.

[0035] When the reset movable plate 6 moves upward, it will push the rotating support plate 5 to rotate in the opposite direction, thereby driving the rotating support plate 5 to reset.

[0036] like Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 and Figure 9 As shown, the adaptive auxiliary support assembly includes: hydraulic rod 3, movable support plate 4, support curved surface 8 and inclined limit bar 9. The hydraulic rod 3 is fixedly installed on the rail conveyor 1 by bolts.

[0037] The movable support plate 4 is fixedly installed on the hydraulic rod 3 by bolts. The hydraulic rod 3 drives the movable support plate 4 to move up and down. The movable support plate 4 has symmetrically opened movable mating cavities 41 at both ends. The inner wall of the movable mating cavity 41 has a movable insertion hole 42. The upper end of the movable support plate 4 is welded and fixed by welding process. The second support column 43 has a second support insertion cavity 44. The support mating boss 45 is integrally formed and fixed on the second support column 43. The support mating guide rod 451 is welded and fixed on the support mating boss 45 by welding process. In addition, the extended connecting plate frame 46 is also welded and fixed on both sides of the movable support plate 4 by welding process. The first driving linkage rod 47 is symmetrically hinged to the end of the extended connecting plate frame 46 away from the movable support plate 4.

[0038] The support curved surface 8 is movably installed on the movable support strip 4. The support curved surface 8 provides auxiliary support for the cylinder section. Specifically, the lower end of the support curved surface 8 is welded and fixed with a second mating insert 81. The second mating insert 81 is inserted into the second support cavity 44 on the second support column 43. The second support cavity 44 limits and guides the second mating insert 81, thereby limiting the support curved surface 8. This ensures that the second mating insert 81 can only move up and down along the second support cavity 44, and the surface of the support curved surface 8 is smooth and burr-free.

[0039] When the movable support plate 4 moves upward under the drive of the hydraulic rod 3, the support curved surface 8 comes into contact with the cylinder section, providing auxiliary support.

[0040] The supporting curved surface 8 is movably connected to a movable mating support plate 85. When there is relative movement between the supporting curved surface 8 and the movable support plate 4, the movable mating support plate 85 is moved. Specifically, a first mating bracket 83 is welded to the lower end of the supporting curved surface 8, and a third driving linkage rod 84 is hinged to the first mating bracket 83. A movable mating through hole 86 is provided on the movable mating support plate 85, and a supporting mating guide rod 451 is inserted into the movable mating through hole 86. The supporting mating guide rod 451 supports and guides the movable mating support plate 85, so that the movable mating support plate... The 85 can only move along the support guide rod 451, and a second mating boss 87 is welded and fixed on the movable mating plate 85 by welding process. The second mating boss 87 is hinged to the lower end of the third driving linkage rod 84. The movable connection between the support curved surface 8 and the movable mating plate 85 is realized by the third driving linkage rod 84. In addition, a second return spring 82 is sleeved on the support guide rod 451. One end of the second return spring 82 is welded and fixed to the movable mating plate 85 by welding process, and the other end is welded and fixed to the support mating boss 45 by welding process.

[0041] Two inclined limiting strips 9 are symmetrically installed at both ends of the movable support plate 4 to limit the movement of the cylinder section. The surface of the inclined limiting strips 9 is smooth and burr-free. At the lower end of the inclined limiting strips 9, a mating protrusion 91 is symmetrically welded and fixed. A limiting mating rod 92 is welded and fixed on the mating protrusion 91. The limiting mating rod 92 is inserted into the movable insertion hole 42. The mating of the movable insertion hole 42 and the limiting mating rod 92 provides support and guidance for the limiting mating rod 92. A mating stop 93 is welded and fixed on the end of the limiting mating rod 92 away from the inclined limiting strips 9. The mating stop 93 is located in the movable mating cavity 41. A third return spring 94 is sleeved on the limiting mating rod 92. The third return spring 94 is located outside the movable mating cavity 41. One end of the third return spring 94 is welded and fixed to the movable support plate 4, and the other end is welded and fixed to the mating protrusion 91.

[0042] like Figure 4 and Figure 10 As shown, the locking assembly is a locking support plate 10, which is movably connected to the movable support plate 4. When the movable support plate 4 moves up and down, it drives the locking support plate 10 to move. Specifically, a mounting rod 101 is welded to the lower end of the locking support plate 10. The mounting rod 101 is inserted into the matching limiting channel 15 on the matching support protrusion 14. The matching limiting channel 15 and the mounting rod 101 cooperate to support the mounting rod 101, thereby supporting the locking support plate 10. A connecting support bar 104 is welded to the upper end of the locking support plate 10. The connecting support bar 104 is hinged to the upper end of the first driving linkage rod 47. The first driving linkage rod 47 realizes the movable connection between the locking support plate 10 and the movable support plate 4.

[0043] A protruding support plate 102 is integrally formed and fixed on the locking support plate 10. An anti-movement mating column 103 is welded and fixed on the protruding support plate 102 by welding process. The surface of the anti-movement mating column 103 is smooth and burr-free. When the anti-movement mating column 103 is engaged with the support movable block 7, the anti-movement mating column 103 is inserted into the mating locking channel 73 on the locking support bar 72 to lock the support movable block 7, thereby achieving stable support for the rotating support plate 5 and ensuring stable support for the cylinder section.

[0044] During the conveying of the cylindrical section, the cylindrical section is hoisted onto the rail conveyor 1 for transport. During hoisting, the cylindrical section is placed on the rail conveyor 1 from top to bottom. During the lowering process, the cylindrical section will come into contact with the support roller 51 on the rotating support plate 5. Under the action of the cylindrical section, the rotating support plate 5 will be pushed to rotate, so that it is adapted to the diameter of the cylindrical section. As the rotating support plate 5 rotates, it will push the reset movable plate 6 to move downward. As the rotating support plate 5 moves downward, the first reset spring 63 will be in a compressed state. And as the reset movable plate 6 moves downward, under the action of the second driving linkage rod 64, it will push the support movable block 7 to move in the direction of the matching support protrusion 14. Under the action of the rotating support plate 5, it can support the cylindrical section from both ends.

[0045] Once the cylinder section is lowered into position, the hydraulic rod 3 can be activated to move the movable support plate 4 upwards. As the movable support plate 4 moves upwards, it will cause the support curved surface 8 to move upwards synchronously until the support curved surface 8 contacts the lower end face of the cylinder section. At this point, the support curved surface 8 will no longer move under the constraint of the cylinder section. As the movable support plate 4 moves upwards, the distance between the support curved surface 8 and the movable support plate 4 will decrease. Under the action of the third drive linkage rod 84, the movable mating bearing plate 85 will be pushed to move away from the second support column 43. This will cause the second return spring 82 to be in a stretched state. At the same time, the cylinder section can be supported by the support curved surface 8. Moreover, the support curved surface 8 is set in multiple sets, so that the support curved surface 8 can adapt to the taper of the cylinder section and make good contact with the cylinder section, thereby achieving auxiliary support for the cylinder section.

[0046] In addition, as the movable support plate 4 moves upward, it will also drive the extension connecting plate frame 46 to move upward. Under the action of the first driving linkage rod 47, the locking bearing plate 10 will be pushed to move, thereby causing the anti-movement mating post 103 on the locking bearing plate 10 to be inserted into the mating locking channel 73 on the locking support bar 72. The mating of the anti-movement mating post 103 and the mating locking channel 73 will lock the support movable block 7. This will allow the reset movable plate 6 to achieve stable support for the rotating support plate 5, and in turn, the rotating support plate 5 will achieve stable support for the cylinder section. At this time, under the action of the second driving linkage rod 64, the reset movable plate 6 can be stably obliquely supported, further improving the stability of the reset movable plate 6 and fully ensuring the stability of the support for the rotating support plate 5. In addition, the multiple settings of the mating locking channel 73 can accommodate cylinder sections of different diameters. After the support movable block 7 is locked, the cylinder section can be released by the hoisting equipment, so that the cylinder section is stably placed on the rail conveyor 1.

[0047] The inclined limiting strips 9 at both ends of the movable support plate 4 ensure that the cylinder section is positioned between the two inclined limiting strips 9 after being lowered. This allows the inclined limiting strips 9 to limit the cylinder section from both ends, ensuring safety during transport. The inclined surface of the inclined limiting strip 9 provides misalignment space for the cylinder section during lowering. When the cylinder section is lowered and deviates to one end, it will come into contact with the inclined surface of the inclined limiting strip 9. Under the action of the cylinder section, the inclined limiting strip 9 will be pushed away from the movable support plate 4, allowing the cylinder section to be lowered smoothly without the need for position adjustment. This makes lowering more convenient and does not affect the limiting of the cylinder section's ends.

[0048] When the cylinder section is transported to the working position, the hydraulic rod 3 is activated to move the movable support plate 4 downward, thereby unlocking the movable support block 7. Then, as the cylinder section is hoisted upward, the first reset spring 63 will drive the reset movable plate 6 upward, thereby causing the rotating support plate 5 to rotate in the opposite direction and reset.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A conveying device for wind turbine tower production, characterized in that: include: A rail-mounted transport vehicle, used for transporting cylindrical sections; A support track supports and guides the rail transport vehicle, allowing the rail transport vehicle to move along the support track; An adaptive cylindrical section support and limiting assembly is installed on a rail conveyor vehicle to support and limit the cylindrical section. An adaptive auxiliary support assembly is also installed on the rail conveyor vehicle, providing auxiliary support to the cylinder section from below. The locking component is connected to the adaptive auxiliary support component. The adaptive auxiliary support component drives the adaptive cylinder section support limiting component to lock it, ensuring the stability of the cylinder section support.

2. The conveying device for wind turbine tower production according to claim 1, characterized in that: The adaptive cylindrical section support and limiting assembly includes: a rotating support plate, wherein there are two sets of rotating support plates, which are symmetrically and movably installed at both ends of the rail conveyor vehicle; A reset movable plate is provided, which contacts the rotating support plate and supports the rotating support plate. A supporting movable block is movably connected to a reset movable plate, and the reset movable plate drives the supporting movable block to move.

3. A conveying device for wind turbine tower production according to claim 2, characterized in that: The cylindrical section is supported by a rotating support plate, and the rotating support plate supports cylindrical sections of different sizes by rotating.

4. A conveying device for wind turbine tower production according to claim 3, characterized in that: When the reset movable plate moves upward, it drives the rotating support plate to reset.

5. A conveying device for wind turbine tower production according to claim 4, characterized in that: The adaptive auxiliary support assembly includes a hydraulic rod, which is fixedly installed on the rail transport vehicle; A movable support plate is fixedly installed on a hydraulic rod, and the hydraulic rod drives the movable support plate to move up and down. A support curved surface is movably mounted on a movable support plate, providing auxiliary support to the cylindrical section. Two inclined limiting strips are symmetrically installed at both ends of the movable support plate to limit the movement of the cylinder section.

6. A conveying device for wind turbine tower production according to claim 5, characterized in that: When the movable support plate moves upward, it brings the support curved surface into contact with the cylindrical section, providing auxiliary support.

7. A conveying device for wind turbine tower production according to claim 6, characterized in that: The supporting curved surface is movably connected to a movable mating plate. When there is relative movement between the supporting curved surface and the movable supporting plate, the movable mating plate will move.

8. A conveying device for wind turbine tower production according to claim 7, characterized in that: The locking assembly is a locking plate, which is movably connected to a movable support plate. When the movable support plate moves up and down, it drives the locking plate to move.

9. A conveying device for wind turbine tower production according to claim 8, characterized in that: A protruding support plate is fixedly provided on the locking support plate, and an anti-movement mating column is fixedly provided on the protruding support plate.

10. A conveying device for wind turbine tower production according to claim 9, characterized in that: The anti-motion mating column cooperates with the support movable block to lock the support movable block, thereby achieving stable support for the rotating support plate.

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