Classified storing and taking device for bridge steel plates

Abstract

The invention relates to the technical field of cargo storage equipment, in particular to a bridge steel plate classified storing and taking device which comprises a box body, symmetrically-arranged storage grooves, a cover plate assembly and a retractable storage unit, and the retractable storage unit comprises a storage assembly, a control assembly, a retractable assembly and a trundle assembly. The control assembly drives the storage assembly to be unfolded or folded outwards through the folding and unfolding assembly, meanwhile, the cover plate assembly is linked to be opened and closed, classified storing and taking and limiting and fixing of the steel plates are achieved, and the trundle assembly can stretch out after storing and taking to move equipment and can be retracted during storing to keep stable. The problems that traditional steel plate storing and taking efficiency is low and operation is inconvenient are solved, and convenience, safety and space utilization rate of steel plate management are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of cargo storage equipment technology, specifically a bridge steel plate sorting and retrieval device. Background Technology

[0002] In the traditional management of steel structure plates, the storage and retrieval of plates are greatly restricted due to their special characteristics. In particular, the efficiency of retrieving raw plates is often very low. For example, when there are a pile of steel plates from different manufacturers, of different specifications, different weights and large areas, it is often necessary to remove the plates on top with a crane before retrieving the plate of a certain specification. This makes it very inconvenient to pick up and put down the steel plates. Therefore, in view of the above situation, there is an urgent need to develop a bridge steel plate classification and retrieval device to overcome the shortcomings in the current practical application. Summary of the Invention

[0003] The purpose of this invention is to provide a bridge steel plate sorting and retrieval device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A bridge steel plate sorting and retrieval device includes: a box body; storage slots symmetrically arranged on the inner side of the top of the box body; a cover plate assembly disposed on the outer side of the top of the storage slots and connected to the box body, used to cooperate with the box body to seal the storage slots and limit the position of the steel plates located inside the storage slots; and a retractable storage unit disposed between the storage slots and the box body, symmetrically arranged and connected to the cover plate assembly; wherein, the retractable storage unit includes: a storage component, a control component, a retractable component, and a caster assembly, the caster assembly being connected to the bottom wall of the box body and opposite to the control component disposed on the inner side of the box body, the control component being connected to the cover plate assembly, and storage components connected to the box body being disposed on the outer side of the bottom of the storage slots on both sides, the storage components being connected to the control component through the retractable component.

[0006] As a further embodiment of the present invention: the control component includes a control plate and a telescopic component. The control plate is disposed inside the housing and is disposed opposite to the caster assembly. A telescopic component is fixedly disposed between the control plate and the housing. The control plate is also connected to the retraction assembly.

[0007] As a further embodiment of the present invention: the caster assembly includes: a base plate, casters, a lifting plate, positioning blocks, and positioning rods. The base plate is slidably connected to the bottom wall of the box. Casters are symmetrically arranged on the outer side of the bottom end of the base plate. The casters are rotatably connected to the base plate. A lifting plate is fixedly arranged on the base plate opposite to the control plate. Positioning blocks that are fixedly connected to the box are slidably arranged on the inner sides of both ends of the lifting plate. The positioning blocks are slidably connected to the positioning rods fixedly arranged on the inner side of the lifting plate. A spring is fixedly arranged between the positioning blocks and the lifting plate.

[0008] As a further embodiment of the present invention: the retraction and unfolding assembly includes: a retraction and unfolding tube, a control piston, a connecting rod, a transmission box, a transmission tube, a transmission component, a push plate, and a guide rod. The transmission box is disposed between the storage assembly and the control board, and is fixedly disposed inside the box. Several transmission tubes are fixedly disposed on the side wall of the transmission box near the control board. A transmission component is slidably disposed inside the transmission tube. A push plate is fixedly disposed on the outer side of the other end of the transmission component. A connecting rod is disposed between the push plate and the control board. One end of the connecting rod is rotatably connected to the control board, and the other end is rotatably connected to the push plate. The push plate is slidably connected to the guide rod fixedly disposed inside the box. A retraction and unfolding tube is also fixedly disposed on the box wall of the transmission box. A control piston is fixedly disposed on the outer side of the other end of the retraction and unfolding tube and is connected to the storage assembly, which is used to cooperate with the lifting and lowering of the control board to realize the retraction and unfolding of the storage assembly.

[0009] As a further embodiment of the present invention: the storage component includes: a receiving box, a piston groove, a cover plate, a fixing seat, a pressure plate, a slider, a guide plate, a touch panel, and a locking block. The receiving box is slidably connected to a positioning plate fixedly disposed on the inner wall of the box. A piston groove is provided on the inner side of the receiving box and slidably connected to a control piston. A cover plate is snapped onto the top wall of the receiving box. A touch panel is slidably disposed on the inner side of the other end of the cover plate. A guide plate is fixedly disposed on the outer side of the touch panel. The guide plate is slidably connected to the cover plate, and a spring is fixedly disposed between the guide plate and the cover plate. A locking block is fixedly disposed on the outer side of the other end of the touch panel. The locking block is snapped into a locking groove disposed on the inner wall of the receiving box. A pressure plate is provided on the outer side of the cover plate. A fixing seat is fixedly connected to the cover plate on the outer side of the pressure plate. A slider is slidably disposed on the inner side of the fixing seat. The slider is connected to the fixing seat through a spring and fixedly connected to the pressure plate.

[0010] As a further embodiment of the present invention: the cover plate assembly includes: a driven rod, a flip plate, a limiting rod, a moving block, a transmission rod, and a limiting plate. The driven rod is rotatably connected to the top wall of the box. A flip plate is fixedly connected to the driven rod on the outside of the storage slot. A limiting rod is slidably arranged on the inside of the flip plate. Moving blocks are symmetrically arranged on the outside of the limiting rod. The moving blocks are slidably connected to the limiting rod. A spring is fixedly arranged between the moving blocks and the flip plate. A limiting plate is arranged on the outside of the flip plate. The limiting plate and the moving block are connected through a transmission rod. The driven rod is connected to the control board through a transmission and control assembly.

[0011] As a further embodiment of the present invention: the transmission and control assembly includes: a rotating rod, a gear, a rack and a belt. The rotating rod is rotatably connected to the housing. The rotating rod is connected to the driven rod on the same side through the belt. A gear is fixedly installed on the outside of the rotating rod. A rack connected to the control board is meshed on the outside of the gear and used to cooperate with the lifting and lowering of the control board to realize the rotation of the driven rod.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. Improve storage and retrieval efficiency: Through the linkage control of the retractable storage unit and the cover plate assembly, the steel plate can be automatically unfolded and retracted, avoiding the cumbersome operation of moving the upper steel plate in the traditional method, and greatly improving the retrieval and placement efficiency.

[0014] 2. Categorized storage management: Equipped with multiple storage slots and independent storage components, it can classify and store bridge steel plates of different specifications and models, making it easy to manage and find them;

[0015] 3. Ease of operation and mobility: Equipped with retractable casters, the equipment can be kept stable during storage and retrieval, and moved to the desired location when stored.

[0016] 4. Structural stability and safety: Through multiple locking and clamping mechanisms such as pressure plates, locking blocks, and limiting plates, the steel plates are not easily moved or slipped during storage and transportation, thus improving safety;

[0017] 5. High space utilization: The storage components can be folded into the box, reducing the space occupied when not in use, making it suitable for storage environments with limited space. Attached Figure Description

[0018] Figure 1 A schematic diagram of a bridge steel plate sorting and retrieval device.

[0019] Figure 2 for Figure 1 A magnified structural diagram of point A in the middle.

[0020] Figure 3 A schematic diagram of the transmission box in a bridge steel plate sorting and retrieval device.

[0021] Figure 4 A schematic diagram of the structure of the bottom plate in a bridge steel plate sorting and retrieval device.

[0022] In the diagram: 1. Box body; 2. Storage slot; 3. Retractable box; 4. Piston groove; 5. Cover plate; 6. Fixed base; 7. Pressure plate; 8. Slider; 9. Retractable tube; 10. Control piston; 11. Base plate; 12. Casters; 13. Lifting plate; 14. Control panel; 15. Telescopic component; 16. Rotating rod; 17. Rack; 18. Gear; 19. Connecting rod; 20. Driven rod; 21. Belt component; 22. Flipping plate; 23. Limiting rod; 24. Moving block; 25. Transmission rod; 26. Limiting plate; 27. Guide plate; 28. Touch panel; 29. ​​Locking block; 30. Transmission box; 31. Transmission tube; 32. Transmission component; 33. Push plate; 34. Guide rod; 35. Positioning block; 36. Positioning rod. Detailed Implementation

[0023] The technical solution of this application will be further described in detail below with reference to specific embodiments.

[0024] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0025] Please see Figure 1 In one embodiment of the present invention, a bridge steel plate sorting and retrieval device includes: a box body 1; storage slots 2 symmetrically arranged on the inner side of the top of the box body 1; a cover plate assembly disposed on the outer side of the top of the storage slots 2 and connected to the box body 1, used to cooperate with the box body 1 to seal the storage slots 2 and limit the position of the steel plates located inside the storage slots 2; and a retractable storage unit disposed between the storage slots 2 and the box body 1, symmetrically arranged and connected to the cover plate assembly; wherein, the retractable storage unit includes: a storage component, a control component, a retractable component, and a caster assembly, the caster assembly being connected to the bottom wall of the box body 1 and opposite to the control component disposed on the inner side of the box body 1, the control component being connected to the cover plate assembly, and storage components connected to the box body 1 being disposed on the outer side of the bottom of both storage slots 2, the storage components being connected to the control component through the retractable component.

[0026] In this embodiment, when the device is running, the control component can drive the storage component to unfold outward through the retraction component. At the same time, the cover component flips open, and the storage component, together with the storage slot 2, completes the classification and storage of the steel plates. The control component can push out the caster component, and at the same time, it can retract the storage component through the retraction component and reset the cover component. The cover component, together with the housing 1, completes the sealing of the storage slot 2, thereby completing the classification and storage of the steel plates. This application, by setting a retraction-type storage unit, together with the cover component, can complete the classification and storage of steel plates, and through automated retraction and opening, greatly improves the convenience of taking and putting away the steel plates.

[0027] In one embodiment of the present invention, please refer to Figure 1 The control assembly includes a control plate 14 and a telescopic component 15. The control plate 14 is disposed inside the housing 1 and is disposed opposite to the caster assembly. The telescopic component 15 is fixedly disposed between the control plate 14 and the housing 1. The control plate 14 is also connected to the retraction assembly.

[0028] In this embodiment, the telescopic component 15 is an electric push rod. The telescopic component 15 can realize the lifting and lowering of the control plate 14. During the lifting and lowering process, the control plate 14 can not only realize the retraction and extension of the caster assembly, but also complete the driving of the retraction and extension assembly and the cover plate assembly, thereby facilitating people to pick up and put down the steel plate and greatly improving the convenience of the equipment during use.

[0029] In one embodiment of the present invention, please refer to Figure 1 and Figure 4 The caster assembly includes: a base plate 11, casters 12, a lifting plate 13, positioning blocks 35, and positioning rods 36. The base plate 11 is slidably connected to the bottom wall of the housing 1. Casters 12 are symmetrically arranged on the outer side of the bottom end of the base plate 11. The casters 12 are rotatably connected to the base plate 11. A lifting plate 13 is fixedly arranged on the base plate 11, opposite to the control plate 14. Positioning blocks 35, which are fixedly connected to the housing 1, are slidably arranged on the inner sides of both ends of the lifting plate 13. The positioning blocks 35 are slidably connected to the positioning rods 36, which are fixedly arranged on the inner side of the lifting plate 13. A spring is fixedly arranged between the positioning blocks 35 and the lifting plate 13.

[0030] In this embodiment, when the control plate 14 moves downward, it can cooperate with the housing 1 to push the bottom plate 11 out from the inside of the housing 1, and the casters 12 provide support for the equipment, making it easier for people to move the equipment. When the control plate 14 moves upward, the spring set between the positioning block 35 and the lifting plate 13 causes the bottom plate 11 to be retracted into the inside of the housing 1, ensuring the stability of the equipment when stored on the steel plate. In addition, the control plate 14 can also retract the storage component and reset the cover plate component through the retraction component.

[0031] In one embodiment of the present invention, please refer to Figure 1 and Figure 3The retraction and unfolding assembly includes: a retraction and unfolding tube 9, a control piston 10, a connecting rod 19, a transmission box 30, a transmission tube 31, a transmission component 32, a push plate 33, and a guide rod 34. The transmission box 30 is disposed between the storage assembly and the control board 14. The transmission box 30 is fixedly disposed inside the box body 1. Several transmission tubes 31 are fixedly disposed on the side wall of the transmission box 30 near the control board 14. A transmission component 32 is slidably disposed inside the transmission tube 31. A push plate 33 is fixedly disposed on the outer side of the other end of the transmission component 32. A connecting rod 19 is disposed between the push plate 33 and the control board 14. One end of the connecting rod 19 is rotatably connected to the control board 14, and the other end is rotatably connected to the push plate 33. The push plate 33 is slidably connected to the guide rod 34 fixedly disposed inside the box body 1. The retraction and unfolding tube 9 is also fixedly disposed on the box wall of the transmission box 30. A control piston 10 is fixedly disposed on the outer side of the other end of the retraction and unfolding tube 9 and connected to the storage assembly. It is used to cooperate with the lifting and lowering of the control board 14 to realize the retraction and unfolding of the storage assembly.

[0032] In this embodiment, the transmission component 32 includes a first piston slidably disposed inside the transmission tube 31 and a first push rod fixedly connected to the first piston. The other end of the first push rod is fixedly connected to the push plate 33. When the control plate 14 is raised or lowered, the control plate 14 can move the push plate 33 through the connecting rod 19. The push plate 33 drives the transmission component 32 to move inside the transmission tube 31, driving the air inside the transmission box 30 to enter the storage component inside the storage component along the take-up and release tube 9. This, in conjunction with the control piston 10, enables the storage component to be taken up and released. By setting up the take-up and release component, the storage component can be automatically taken up and released in conjunction with the control component, thus facilitating people to pick up and put down the steel plate.

[0033] In one embodiment of the present invention, please refer to Figure 1 and Figure 2 The storage component includes: a receiving box 3, a piston groove 4, a cover plate 5, a fixing seat 6, a pressure plate 7, a slider 8, a guide plate 27, a touch panel 28, and a locking block 29. The receiving box 3 is slidably connected to a positioning plate fixedly installed on the inner wall of the box body 1. The receiving box 3 has a piston groove 4 slidably connected to the control piston 10 on its inner side. The top wall of the receiving box 3 is clamped to the cover plate 5. The touch panel 28 is slidably installed on the inner side of the other end of the cover plate 5. The guide plate 27 is fixedly installed on the outer side of the touch panel 28. The guide plate 27 is slidably connected to the cover plate 5, and a spring is fixedly installed between the guide plate 27 and the cover plate 5. The locking block 29 is fixedly installed on the outer side of the other end of the touch panel 28. The locking block 29 is clamped to a locking groove on the inner wall of the receiving box 3. The cover plate 5 has a pressure plate 7 on its outer side. The pressure plate 7 has a fixing seat 6 fixedly connected to the cover plate 5 on its outer side. The fixing seat 6 has a slider 8 slidably installed on its inner side. The slider 8 is connected to the fixing seat 6 by a spring and fixedly connected to the pressure plate 7.

[0034] In this embodiment, the air inside the transmission box 30 enters and exits the piston groove 4 along the take-up and release pipe 9, and works with the control piston 10 to realize the take-up and release of the take-up and release box 3. When one end of the cover plate 5 abuts against the take-up and release box 3, the control touch panel 28 is used to lock the locking block 29 against the other side of the take-up and release box 3, thus locking the cover plate 5. The pressure plate 7 can clamp and lock the steel plate located inside the take-up and release box 3, ensuring the stability of the steel plate during storage.

[0035] In one embodiment of the present invention, please refer to Figure 1 The cover assembly includes: a driven rod 20, a flip plate 22, a limiting rod 23, a moving block 24, a transmission rod 25, and a limiting plate 26. The driven rod 20 is rotatably connected to the top wall of the box 1. A flip plate 22, which is fixedly connected to the driven rod 20, is provided on the outside of the storage slot 2. A limiting rod 23 is slidably provided on the inside of the flip plate 22. Moving blocks 24 are symmetrically provided on the outside of the limiting rod 23. Moving blocks 24 are slidably connected to the limiting rod 23. A spring is fixedly provided between the moving blocks 24 and the flip plate 22. A limiting plate 26 is provided on the outside of the flip plate 22. The limiting plate 26 and the moving block 24 are connected through the transmission rod 25. The driven rod 20 is connected to the control board 14 through a transmission and control assembly.

[0036] In this embodiment, one end of the transmission rod 25 is rotatably connected to the moving block 24, and the other end is rotatably connected to the limiting plate 26. The transmission and control component can cooperate with the lifting and lowering of the control plate 14 to realize the rotation of the driven rod 20. The driven rod 20 drives the flipping plate 22 to rotate. When the flipping plate 22 flips and resets, the limiting plate 26 can clamp and limit the steel plate located inside the storage slot 2, further ensuring the stability of the equipment during use. By setting the cover plate component, it can be synchronously flipped in coordination with the operation of the control component, which makes it convenient for people to pick up and put down the steel plate located inside the storage slot 2, and ensures the stability and safety of the steel plate when stored inside the storage slot 2.

[0037] In one embodiment of the present invention, please refer to Figure 1 The transmission and control assembly includes: a rotating rod 16, a gear 18, a rack 17, and a belt 21. The rotating rod 16 is rotatably connected to the housing 1, and the rotating rod 16 is connected to the driven rod 20 on the same side via the belt 21. A gear 18 is fixedly installed on the outside of the rotating rod 16, and a rack 17 connected to the control board 14 is meshed on the outside of the gear 18 to cooperate with the lifting and lowering of the control board 14 to realize the rotation of the driven rod 20.

[0038] In this embodiment, the belt component 21 includes a pulley fixedly disposed on the outside of the driven rod 20 and the rotating rod 16, and a belt for connecting the pulley. When the control plate 14 is raised and lowered, the rack 17 is raised and lowered synchronously with the control plate 14. The rack 17 cooperates with the gear 18 to realize the rotation of the driven rod 20, thereby realizing the rotation of the flip plate 22.

[0039] This bridge steel plate sorting and retrieval device synchronously drives the take-up and put-down components and the cover plate components by controlling the lifting and lowering movement of the control components:

[0040] Storage and retrieval status: The control plate 14 descends and pushes the push plate 33 through the connecting rod 19, so that the gas in the transmission box 30 enters the piston groove 4 of the storage component through the take-up and release pipe 9, pushing the take-up and release box 3 to unfold outward. At the same time, the control plate 14 drives the driven rod 20 to rotate through the rack and pinion mechanism, so that the flip plate 22 opens and the caster assembly is retracted, ensuring the stability of the box 1 during storage. The steel plate can be placed in the unfolded take-up and release box 3.

[0041] Storage status: The control panel 14 rises, the receiving box 3 retracts into the box under air pressure, the flip plate 22 closes and clamps the steel plate through the limiting plate 26, the casters extend, thus facilitating the movement of the equipment, the cover plate 5 and the limiting plate 26 ensure that the steel plate is firmly fixed when stored, and realize classified storage.

[0042] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these should also be considered within the scope of protection of the present invention. These will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

Claims

1. A bridge steel plate sorting and accessing device characterized by, The utility model relates to a kind of storage box, including: Box body; Storage tank, the storage tank is symmetrically arranged in the inside of box body top end;Cover plate assembly, the cover plate assembly is arranged in the outside of storage tank top end, is connected with box body, for cooperation box body is completed to the cover of storage tank, and the limiting of steel plate located in the inside of storage tank is completed;Retractable storage unit, the retractable storage unit is arranged between storage tank and box body, is symmetrically arranged, and is connected with cover plate assembly;Wherein, the retractable storage unit includes: storage assembly, control assembly, retractable assembly and trundle assembly, the trundle assembly is connected with the bottom end tank wall of box body, is oppositely arranged with the control assembly arranged in the inside of box body, control assembly is connected with cover plate assembly, both sides storage tank bottom end outside is provided with the storage assembly connected with box body, and storage assembly is connected between control assembly by retractable assembly.

2. The bridge steel plate sorting and accessing device according to claim 1, characterized by The control assembly includes: control panel and telescopic piece, the control panel is arranged in the inside of box body, is oppositely arranged with trundle assembly, and telescopic piece is fixedly arranged between control panel and box body, and control panel is also connected with retractable assembly.

3. The bridge steel plate sorting and accessing device according to claim 2, characterized in that, The trundle assembly includes: bottom plate, trundle, lifting plate, positioning block and positioning rod, the bottom plate is slidably connected with the bottom end tank wall of box body, and the outside of bottom plate bottom end is symmetrically provided with trundle, and trundle is rotatably connected with bottom plate, and lifting plate is fixedly arranged on bottom plate and is oppositely arranged with control panel, and the inside of both ends of lifting plate is slidably provided with the positioning block fixedly connected with box body, and positioning block is slidably connected with the positioning rod fixedly arranged in the inside of lifting plate, and spring is fixedly arranged between positioning block and lifting plate.

4. The bridge steel plate sorting and accessing device according to claim 3, characterized by The retractable assembly includes: retractable pipe, control piston, connecting rod, transmission box, transmission pipe, transmission piece, push plate and guide rod, the transmission box is arranged between storage assembly and control panel, and transmission box is fixedly arranged in the inside of box body, and a plurality of transmission pipes are fixedly arranged on the tank wall of transmission box close to control panel side, and transmission piece is slidably arranged in the inside of transmission pipe, and push plate is fixedly arranged on the other end of transmission piece, and connecting rod is arranged between push plate and control panel, one end of connecting rod is rotatably connected with control panel, the other end is rotatably connected with push plate, push plate is slidably connected with the guide rod fixedly arranged in the inside of box body, and retractable pipe is also fixedly arranged on the tank wall of transmission box, and control piston is fixedly arranged on the other end of retractable pipe, and is connected with storage assembly, for cooperation the retracting of control panel realizes the retracting of storage assembly.

5. The bridge steel plate sorting and accessing device according to claim 4, characterized in that, The storage assembly includes: retractable box, piston groove, cover plate, fixed seat, pressing plate, sliding block, guide plate, touch panel and clamping block, the retractable box is slidably connected with the positioning plate fixedly arranged on the inner wall of box body, and the piston groove slidably connected with control piston is arranged in the inside of retractable box, and cover plate is clampedly arranged on the tank wall of retractable box top end, and touch panel is slidably arranged on the other end of cover plate, and guide plate is fixedly arranged on the outside of touch panel, and guide plate is slidably connected with cover plate, and spring is fixedly arranged between guide plate and cover plate, and clamping block is fixedly arranged on the other end of touch panel, and clamping block is clampedly arranged in the slot arranged on the inner wall of retractable box, and pressing plate is arranged on the outside of cover plate, and fixed seat fixedly connected with cover plate is arranged on the outside of pressing plate, and sliding block is slidably arranged in the inside of fixed seat, and sliding block is connected with fixed seat by spring, and is fixedly connected with pressing plate.

6. The bridge steel plate sorting and accessing device according to claim 5, characterized in that, The cover plate assembly comprises a driven rod, a turnover plate, a limiting rod, a moving block, a transmission rod and a limiting plate, the driven rod is rotationally connected with the top wall of the box body, the outer side of the storage groove is provided with the turnover plate fixedly connected with the driven rod, the inner side of the turnover plate is slidably provided with the limiting rod, the outer side of the limiting rod is symmetrically provided with the moving block, the moving block is slidably connected with the limiting rod, the spring is fixedly arranged between the moving block and the turnover plate, the outer side of the turnover plate is provided with the limiting plate, and the limiting plate and the moving block are connected through the transmission rod.

7. The bridge steel plate sorting and accessing device according to claim 6, characterized in that, The transmission control assembly comprises a rotating rod, a gear, a rack and a belt piece, the rotating rod is rotationally connected with the box body, the rotating rod and the driven rod on the same side are connected through the belt piece, the outer side of the rotating rod is fixedly provided with the gear, the outer side of the gear is meshingly connected with the rack connected with the control panel, and the rotation of the driven rod is realized by matching the lifting of the control panel.

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