An extendable sliding plate for mechanical equipment maintenance
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG SANAN MACHINERY EQUIPMENT LEASING CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional repair skateboards have poor adjustment precision and convenience, making it impossible to quickly and accurately adjust angles and lengths. They also lack effective cushioning and anti-slip design, posing safety hazards.
It adopts a worm gear transmission mechanism and a servo motor driven adjustment component, combined with a sliding adjustment structure and anti-slip plate design, and is equipped with a buffer spring and telescopic column to achieve rapid positioning and precise angle adjustment, and provide progressive buffer protection.
It enables flexible length and angle adjustment, ensuring operational stability and safety, improving the comfort and safety of maintenance work, and simplifying the operation process.
Smart Images

Figure CN224425562U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of maintenance tool technology, and in particular relates to an extendable sliding plate for mechanical equipment maintenance. Background Technology
[0002] In mechanical equipment maintenance, maintenance personnel often need to bend over or lie on their backs for long periods of time, especially when inspecting the bottom or internal structure of large machinery. Traditional maintenance skateboards are usually simple in structure and cannot flexibly adjust their height and angle, which restricts the working posture of maintenance personnel, makes them prone to fatigue, and affects maintenance efficiency. In addition, the existing skateboards lack extensibility and stability, making it difficult to adapt to the needs of different maintenance scenarios, such as adjusting the working position or maintaining stable support in a confined space.
[0003] While some existing repair skateboards have some adjustment functions, they mostly rely on manual operation, resulting in poor adjustment accuracy and convenience. They cannot achieve quick and precise angle and length adjustments. At the same time, they lack effective cushioning and anti-slip design, which may pose safety hazards when moving or carrying repair personnel. Therefore, there is an urgent need for an extendable skateboard that is height-adjustable, has stable extension, and is easy to operate, in order to improve the comfort and safety of repair work. Utility Model Content
[0004] The technical problem this utility model aims to solve is that repairing skateboards mostly relies on manual operation, which has poor adjustment accuracy and convenience, and cannot achieve fast and accurate angle and length adjustment. At the same time, it lacks effective cushioning and anti-slip design, which may pose safety hazards during use.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an extendable sliding plate for mechanical equipment maintenance, comprising a base plate, the base plate being stepped, two symmetrically distributed casters being movably connected to the bottom of the base plate, and a back plate being rotatably connected between the inner walls of the top of the base plate via a pivot, and further comprising...
[0006] An extension assembly, disposed inside a back panel, includes an extension plate that slides inside the back panel, the bottom of the extension plate having linearly arranged positioning grooves, and the bottom of the back panel having a positioning mechanism for positioning the extension plate.
[0007] An adjustment assembly, located on one side of the base plate, includes a worm gear fixedly connected to a rotating shaft. A servo motor is fixedly mounted on the base plate, and the output end of the servo motor is fixedly connected to a worm that meshes with the worm gear.
[0008] Furthermore, a base frame is fixedly connected to the bottom of the back plate, and a sliding column perpendicular to it is slidably connected to the base frame. A return spring is sleeved on the sliding column, and the base frame and the sliding column are fixedly connected at both ends. The sliding column and the positioning groove are compatible.
[0009] Furthermore, the extension plate is provided with symmetrically distributed limiting grooves, and a limiting block is fixedly connected to the inner wall of the back plate, the limiting block being located inside the limiting groove.
[0010] Furthermore, a guide frame is fixedly connected to the top of the base plate, and it is arranged in an arc shape. The guide frame is provided with a stroke hole. A side rod is fixedly connected to the outer wall of the back plate, and one end of the rod moves through the stroke hole.
[0011] Furthermore, the top of the base plate is provided with evenly distributed slots, and anti-slip plates are inserted into the slots. Handles are fixedly connected to both the front and rear sides of the slots.
[0012] Furthermore, a headrest is fixedly connected to the upper end of the extension plate.
[0013] Furthermore, the top of the base plate is fixedly connected with evenly distributed telescopic columns, the upper end of the telescopic columns is fixedly connected with a buffer plate, a buffer spring is sleeved on the telescopic column, and the two ends of the telescopic column are fixedly connected to the base plate and the buffer plate.
[0014] The beneficial effects of this utility model after adopting the above structure are as follows:
[0015] (1) Through the slot design, users can insert the anti-slip plate into the corresponding slot according to actual needs. The extension plate adopts a sliding adjustment structure. With the cooperation of the limit block and the limit groove, it can not only achieve flexible length adjustment, but also effectively prevent the extension plate from separating from the back plate. The reset spring and the sliding column are combined into a positioning mechanism, so that the extension plate can be quickly locked after the position is adjusted. The operation is simple and reliable.
[0016] (2) The back plate angle is adjusted by using a worm gear transmission mechanism. The servo motor drive ensures a smooth and accurate adjustment process. The design of the side rod and the stroke hole can intuitively display the adjustment angle, making it easy for users to grasp the best working position. The anti-slip plate design effectively prevents body slippage during maintenance and ensures operational stability.
[0017] (3) When the worm gear mechanism fails, the back plate presses down on the buffer plate, and the impact energy is absorbed by the deformation of the buffer spring. The contraction movement of the telescopic column provides progressive buffering, effectively protecting the user's safety and improving the safety performance of the equipment.
[0018] (4) The overall anti-slip treatment and body support ensure comfort during long-term work. The operation of each adjustment mechanism is simple and intuitive, and can quickly adapt to the needs of different users, solving the problems of inconvenient adjustment and insufficient safety of traditional maintenance skateboards. Attached Figure Description
[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0020] Figure 1 This is a schematic diagram of the overall structure of an extendable sliding plate for mechanical equipment maintenance proposed in this utility model;
[0021] Figure 2 This is a front view of an extendable sliding plate for mechanical equipment maintenance proposed in this utility model;
[0022] Figure 3 This is a three-dimensional structural diagram of an extendable sliding plate for mechanical equipment maintenance proposed in this utility model;
[0023] Figure 4 Partial cross-section of an extendable sliding plate for mechanical equipment maintenance proposed in this utility model. Figure 1 ;
[0024] Figure 5 Partial cross-section of an extendable sliding plate for mechanical equipment maintenance proposed in this utility model. Figure 2 .
[0025] In the attached diagram: 1. Base plate, 2. Casters, 3. Back plate, 4. Extension plate, 5. Positioning groove, 6. Worm gear, 7. Servo motor, 8. Worm, 9. Base frame, 10. Sliding column, 11. Return spring, 12. Limiting groove, 13. Limiting block, 14. Guide frame, 15. Stroke hole, 16. Side rod, 17. Slot, 18. Anti-slip plate, 19. Handle, 20. Headrest, 21. Telescopic column, 22. Buffer plate, 23. Buffer spring, 24. Rotary shaft. Detailed Implementation
[0026] like Figure 1-2 As shown, an extendable sliding plate for mechanical equipment maintenance includes a base plate 1, which is stepped. Two symmetrically distributed casters 2 are movably connected to the bottom of the base plate 1. A back plate 3 is rotatably connected between the inner walls of the top of the base plate 1 through a pivot 24. The plate also includes an extension component and an adjustment component. The extension component is located inside the back plate 3, and the adjustment component is located on one side of the base plate 1.
[0027] like Figure 1-5As shown, to facilitate quick adjustment and locking of the extension plate 4, the extension assembly includes an extension plate 4 that slides inside the back plate 3. The bottom of the extension plate 4 has linearly arranged positioning grooves 5. The bottom of the back plate 3 has a positioning mechanism for positioning the extension plate 4. A base frame 9 is fixedly connected to the bottom of the back plate 3. A sliding column 10 perpendicular to the base frame 9 is slidably connected to the base frame 9. A return spring 11 is fitted onto the sliding column 10, and both ends of the sliding column 10 are fixedly connected to the base frame 9 and the sliding column 10. The sliding column 10 and the positioning grooves 5 are compatible. The extension plate 4 is provided with symmetrically distributed limiting grooves 12. A limiting block 13 is fixedly connected to the inner wall of the back plate 3. The limiting block 13 is located inside the limiting groove 12. A headrest 20 is fixedly connected to the upper end of the extension plate 4. The extension plate 4 adopts a sliding adjustment structure. With the cooperation of the limiting block 13 and the limiting groove 12, it can not only achieve flexible length adjustment, but also effectively prevent the extension plate 4 from separating from the back plate 3. The reset spring 11 and the sliding column 10 are combined into a positioning mechanism, which can quickly position the extension plate 4.
[0028] like Figure 1-3 As shown, to facilitate angle adjustment and ensure a smooth and precise adjustment process, the adjustment assembly includes a worm gear 6 fixedly connected to the rotating shaft 24, a servo motor 7 fixedly mounted on the base plate 1, a worm 8 meshing with the worm gear 6 fixedly connected to the output end of the servo motor 7, a guide frame 14 fixedly connected to the top of the base plate 1 in an arc shape, a travel hole 15 on the guide frame 14, and a side rod 16 fixedly connected to the outer wall of the back plate 3, with one end of the side rod 16 moving through the travel hole 15. The worm gear 6 and worm 8 transmission mechanism are used to achieve the angle adjustment of the back plate 3. The servo motor 7 drives the adjustment process to ensure a smooth and precise adjustment. The design of the side rod 16 and the travel hole 15 allows for a direct display of the adjustment angle, making it easy for the user to grasp the optimal working position.
[0029] To effectively prevent body slippage during maintenance, the top of the base plate 1 is provided with evenly distributed slots 17, and anti-slip plates 18 are inserted into the slots 17. Through the design of the slots 17, the user can insert the anti-slip plates 18 into the corresponding slots 17 as needed to restrict the user's buttocks. Handles 19 are fixedly connected to both the front and rear sides of the slots 17.
[0030] To improve the safety performance of the equipment, the top of the base plate 1 is fixedly connected with evenly distributed telescopic columns 21, the upper end of the telescopic columns 21 is fixedly connected with a buffer plate 22, and a buffer spring 23 is sleeved on the telescopic columns 21. The two ends of the telescopic columns 21 are fixedly connected to the base plate 1 and the buffer plate 22. When the worm gear 6 and worm 8 mechanism fails, the back plate 3 presses down on the buffer plate 22. The impact energy is absorbed by the deformation of the buffer spring 23, and the contraction movement of the telescopic columns 21 provides progressive buffering.
[0031] In practical use, the user inserts the anti-slip plate 18 into the corresponding slot 17 as needed, pulls the sliding column 10 to adjust the position of the extension plate 4 in the back plate 3. During the process, the limiting block 13 and the limiting groove 12 can limit the sliding distance of the extension plate 4 to prevent the extension plate 4 from disengaging from the back plate 3. After adjusting to the appropriate position, the sliding column 10 is released, and the sliding column 10 is inserted into the corresponding positioning groove 5 under the action of the return spring 11, which can then position the adjusted extension plate 4. The servo motor 7 is turned on, and the worm gear 8 drives the worm wheel 6 to rotate, so that the worm wheel 6... The fixed rotating shaft 24 drives the back plate 3 to adjust its angle. During the process, the back plate 3 drives the side rod 16 to slide inside the stroke hole 15, indicating the adjusted angle. The user can sit between the anti-slip plate 18 and the back plate 3. The anti-slip plate 18 can prevent the user's buttocks from sliding on the base plate 1 during maintenance operations, ensuring the user's posture during maintenance. If the worm gear 8 and worm wheel 6 malfunction and cause the back plate 3 to suddenly fall, the back plate 3 can apply pressure to the buffer plate 22. The deformation of the buffer spring 23 can cause the telescopic column 21 to retract, providing cushioning protection for the user.
[0032] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. An extendable sliding plate for mechanical equipment maintenance, comprising a base plate (1), the base plate (1) being stepped, with two symmetrically distributed casters (2) movably connected to the bottom of the base plate (1), and a back plate (3) rotatably connected between the inner walls of the top of the base plate (1) via a pivot (24), characterized in that: Also includes An extension assembly is provided inside the back plate (3), including an extension plate (4) that slides inside the back plate (3). The bottom of the extension plate (4) is provided with linearly arranged positioning grooves (5), and the bottom of the back plate (3) is provided with a positioning mechanism for positioning the position of the extension plate (4). The adjustment assembly is located on one side of the base plate (1) and includes a worm gear (6) fixedly connected to the rotating shaft (24). A servo motor (7) is fixedly installed on the base plate (1), and a worm (8) that meshes with the worm gear (6) is fixedly connected to the output end of the servo motor (7). The top of the base plate (1) is fixedly connected with evenly distributed telescopic columns (21), and the upper end of the telescopic column (21) is fixedly connected with a buffer plate (22). A buffer spring (23) is sleeved on the telescopic column (21), and the two ends of the column are fixedly connected to the base plate (1) and the buffer plate (22).
2. The extendable sliding plate for mechanical equipment maintenance according to claim 1, characterized in that: The bottom of the back plate (3) is fixedly connected to a base frame (9), and a sliding column (10) perpendicular to it is slidably connected on the base frame (9). A reset spring (11) is sleeved on the sliding column (10), and the base frame (9) and the sliding column (10) are fixedly connected at both ends. The sliding column (10) and the positioning groove (5) are compatible.
3. The extendable sliding plate for mechanical equipment maintenance according to claim 2, characterized in that: The extension plate (4) is provided with symmetrically distributed limiting grooves (12), and a limiting block (13) is fixedly connected to the inner wall of the back plate (3). The limiting block (13) is located inside the limiting groove (12).
4. The extendable sliding plate for mechanical equipment maintenance according to claim 3, characterized in that: The bottom plate (1) is fixedly connected to the top of the guide frame (14), which is arranged in an arc shape. The guide frame (14) is provided with a stroke hole (15). The back plate (3) is fixedly connected to the outer wall of the side rod (16), and one end of the rod moves through the stroke hole (15).
5. The extendable sliding plate for mechanical equipment maintenance according to claim 4, characterized in that: The top of the base plate (1) is provided with evenly distributed slots (17), and anti-slip plates (18) are inserted into the slots (17). Handles (19) are fixedly connected to the front and rear sides of the slots (17).
6. The extendable sliding plate for mechanical equipment maintenance according to claim 5, characterized in that: A headrest (20) is fixedly connected to the upper end of the extension plate (4).