Lifting trolley for maintenance

The hydraulically supported and motor-driven lifting trolley solves the problems of complex structure and inconvenient use of existing maintenance lifting trolleys, and enables convenient tool storage and retrieval and height adjustment.

CN223659746UActive Publication Date: 2025-12-12赵成
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Patent Information

Application Number
CN202520223132.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2025-12-12
Estimated Expiration
2035-02-12

AI Technical Summary

Technical Problem

The existing maintenance lifting trolley has a complex structure and is inconvenient to use.

Method used

It adopts hydraulic support and fixing components, power transmission components, storage components and rotating components. The storage box is supported by hydraulic cylinders, driven by servo motors to lift the screw and operated by throttle, so as to realize convenient movement and tool storage and retrieval.

Benefits of technology

It improves the device's load capacity and portability, avoids instability during movement, and simplifies the tool access process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The lifting trolley for maintenance comprises a bottom plate, hydraulic holes are formed in the left side and the right side of the top end of the bottom plate, supporting and fixing assemblies are arranged on the hydraulic holes, a sliding groove block is fixedly connected to the top end of the bottom plate, and a first screw rod is rotationally connected to a sliding groove in the sliding groove block; a second screw is rotationally connected to the position, located on the left side of the first screw, of the sliding groove in the sliding groove block, a sliding block is slidably connected to the sliding groove block, a first threaded hole is formed in one side of the sliding block, and a second threaded hole is formed in the position, located on the left side of the first threaded hole, of one side of the sliding block. According to the utility model, the whole device is supported by the supporting assembly in a moving process, so that the device is prevented from moving, the first screw and the second screw are rotated at the same time through the power transmission assembly, the sliding block moves upwards to improve the loading capacity, and the situation that a single threaded rod cannot bear the weight of the device on the sliding block is avoided; and each maintenance tool is placed through the storage assembly.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of maintenance lifting trolley technical field, especially a kind of maintenance lifting trolley. BACKGROUND

[0002] Maintenance lifting trolley is a kind of equipment specially used for maintenance and repair work, it can help staff to easily move and adjust the position of tool, especially for high-altitude operation or need to be operated at different heights It is very useful for occasion.This trolley is usually equipped with lifting device, can be adjusted height by manual or electric way, to facilitate maintenance personnel to operate at different heights.

[0003] The existing lifting trolley has complex structure, inconvenient to use and other problems. In order to overcome these disadvantages, the utility model provides a kind of maintenance lifting trolley. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art, and provides a kind of maintenance lifting trolley.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme: a kind of maintenance lifting trolley, including bottom plate, the bottom plate top end left and right sides are all set with hydraulic hole, the hydraulic hole is provided with support fixed component, the bottom plate top end is fixedly connected with sliding groove block, the sliding groove block inside sliding groove is rotatably connected with first screw rod, the sliding groove block inside sliding groove and located first screw rod left side rotatably connected with second screw rod, the sliding groove block is slidably connected with sliding block, the sliding block one side is set with first screw hole, the sliding block one side and located first screw hole left side is set with second screw hole, the first screw hole and first screw rod are threadedly connected, the second screw hole and second screw rod are threadedly connected, the sliding groove block top is provided with power transmission component, the sliding block left and right sides are all fixedly connected with support frame, the support frame one side is rotatably connected with rotating rod, the rotating rod is fixedly connected with first rotating shaft, the first rotating shaft left and right sides are all fixedly connected with a plurality of connecting frames, the connecting frame one side is fixedly connected with fixed rod, the fixed rod is rotatably connected with storage component, the support frame one side is provided with rotating component, the bottom plate bottom end four corners are all fixedly connected with universal wheel.

[0006] Further, the support fixed component includes hydraulic cylinder fixedly connected with hydraulic hole, and the output end of the hydraulic cylinder is fixedly connected with support plate.

[0007] Furthermore, the power transmission assembly includes a first connecting rod rotatably connected to the top of the slide block and above the first screw. A drive gear is fixedly connected to the top of the first connecting rod. One end of the first connecting rod passes through the slide block and is fixedly connected to one end of the first screw. A second connecting rod is rotatably connected to the top of the slide block and above the second screw. A driven gear is fixedly connected to the top of the second connecting rod. One end of the second connecting rod passes through the slide block and is fixedly connected to one end of the second screw. The drive gear and the driven gear are driven by a chain. Support columns are fixedly connected to the top of the slide block and on both the left and right sides of the first connecting rod. A power assembly is provided at the top of each support column.

[0008] Furthermore, the power assembly includes a motor support plate fixedly connected to the top of the support column, a servo motor fixedly connected to the top of the motor support plate, and the output end of the servo motor passing through the motor support plate and fixedly connected to one side of the drive gear.

[0009] Furthermore, the storage assembly includes a second rotating shaft rotatably connected to the fixed rod, and a storage box is fixedly connected to the second rotating shaft.

[0010] Furthermore, the rotating assembly includes a third connecting rod rotatably connected to the support frame, a throttle fixedly connected to the third connecting rod, and one end of the third connecting rod passing through the support frame and fixedly connected to one end of the rotating rod.

[0011] The beneficial effects of this utility model are:

[0012] In use, this utility model provides a maintenance lifting trolley. A support assembly supports the entire device when it doesn't need to move, preventing movement. A power transmission assembly rotates the first and second screws simultaneously, causing the slider to move upwards, increasing its load capacity and preventing a single screw rod from being unable to bear the weight of the device on the slider. A storage assembly holds various maintenance tools. Turning the handle rotates the rotating rod, which in turn rotates the storage assembly, bringing different storage boxes closer to the operator, improving the portability of the device. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 : A perspective view of the left front of this utility model;

[0015] Figure 2The present utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0016] Figure 3 : Left rear perspective view of this utility model;

[0017] Figure 4 : Schematic diagram of the storage component structure of this utility model.

[0018] The attached figures are labeled as follows:

[0019] 1. Base plate; 2. Casters; 3. Hydraulic hole; 4. Hydraulic cylinder; 5. Support plate; 6. First screw; 7. Second screw; 8. Slider; 9. First threaded hole; 10. Second threaded hole; 11. Support frame; 12. Rotating rod; 13. First rotating shaft; 14. Connecting frame; 15. Fixing rod; 16. Second rotating shaft; 18. Storage box; 19. First connecting rod; 20. Drive gear; 21. Second connecting rod; 22. Driven gear; 23. Chain; 24. Support column; 25. Motor support plate; 26. Servo motor; 27. Slide block; 28. Third connecting rod; 29. ​​Throttle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-4 As shown, the system includes a base plate 1, with hydraulic holes 3 on both the left and right sides of the top of the base plate 1. Support and fixing components are installed on the hydraulic holes 3. A sliding block 27 is fixedly connected to the top of the base plate 1. A first screw 6 is rotatably connected to the sliding groove inside the sliding block 27. A second screw 7 is rotatably connected to the sliding groove inside the sliding block 27 and to the left of the first screw 6. A slider 8 is slidably connected to the sliding block 27. A first threaded hole 9 is opened on one side of the slider 8, and a second threaded hole 10 is opened on the side of the slider 8 and to the left of the first threaded hole 9. The first threaded hole 9 and the first screw 6 are threaded together. The second threaded hole 10 is threadedly connected to the second screw 7. A power transmission component is provided at the top of the slide block 27. Support frames 11 are fixedly connected to both sides of the slider 8. A rotating rod 12 is rotatably connected to one side of the support frame 11. A first rotating shaft 13 is fixedly connected to the rotating rod 12. Several connecting frames 14 are fixedly connected to both sides of the first rotating shaft 13. A fixed rod 15 is fixedly connected to one side of the connecting frame 14. A storage component is rotatably connected to the fixed rod 15. A rotating component is provided on one side of the support frame 11. Universal wheels 2 are fixedly connected to the four corners of the bottom of the base plate 1.

[0022] like Figures 1-4 As shown, the support and fixing assembly includes a hydraulic cylinder 4 fixedly connected to the hydraulic hole 3, and a support plate 5 fixedly connected to the output end of the hydraulic cylinder 4, which is used to support the entire device when it is not moving.

[0023] like Figures 1-4 As shown, the power transmission assembly includes a first connecting rod 19 rotatably connected to the top of the slide block 27 and above the first screw 6. A drive gear 20 is fixedly connected to the top of the first connecting rod 19. One end of the first connecting rod 19 passes through the slide block 27 and is fixedly connected to one end of the first screw 6. A second connecting rod 21 is rotatably connected to the top of the slide block 27 and above the second screw 7. A driven gear 22 is fixedly connected to the top of the second connecting rod 21. One end of the second connecting rod 21 passes through the slide block 27 and is fixedly connected to one end of the second screw 7. The drive gear 20 and the driven gear 22 are driven by a chain 23. Support columns 24 are fixedly connected to the top of the slide block 27 and on both sides of the first connecting rod 19. A power assembly is provided at the top of the support column 24 to transmit power to the slider 8 so that it moves up and down.

[0024] like Figures 1-4 As shown, the power assembly includes a motor support plate 25 fixedly connected to the top of the support column 24. A servo motor 26 is fixedly connected to the top of the motor support plate 25. The output end of the servo motor 26 passes through the motor support plate 25 and is fixedly connected to one side of the drive gear 20, and is used to provide power for the up and down movement of the device on the slider 8.

[0025] like Figures 1-4 As shown, the storage assembly includes a second rotating shaft 16 rotatably connected to the fixing rod 15, and a storage box 18 is fixedly connected to the second rotating shaft 16.

[0026] like Figures 1-4 As shown, the rotating assembly includes a third connecting rod 28 rotatably connected to the support frame 11. A handle 29 is fixedly connected to the third connecting rod 28. One end of the third connecting rod 28 passes through the support frame 11 and is fixedly connected to one end of the rotating rod 12. The handle 29 is used by the operator to rotate the operator to position the storage boxes 18 containing different items in front of the operator.

[0027] Working principle: In use, first check if the entire device is intact. After the check is completed, turn the handle 29 to drive the rotating rod 12 connected to the third connecting rod 28 to rotate, thereby moving the storage box 18 in the storage component of the first rotating shaft 13 to the operator's front and placing the required maintenance tools into it. Then, turn the handle 29 again to repeat the above steps to put the remaining maintenance tools that cannot be placed in the current storage box into other storage boxes. After placement, push the entire device and move it to the position that needs maintenance through the casters 2. Then, start the hydraulic cylinder 4 to push the support plate 5 downward to lift the entire device to prevent the entire device from moving during maintenance. Then, start the servo motor 26 to drive the drive gear 20 to rotate, and then drive the driven gear 22 to rotate through the chain 23. Finally, drive the first screw 6 and the second screw 7 to rotate through the first connecting rod 19 and the second connecting rod 21, so that the slider 8 moves up and down to a suitable height. Then, during maintenance, the operator can turn the handle 29 to repeat the above steps to retrieve maintenance tools from different storage boxes 18.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A maintenance lifting trolley, comprising a base plate (1), characterized in that: Hydraulic holes (3) are provided on both the left and right sides of the top of the base plate (1). Support and fixing components are provided on the hydraulic holes (3). A sliding block (27) is fixedly connected to the top of the base plate (1). A first screw (6) is rotatably connected to the sliding groove inside the sliding block (27). A second screw (7) is rotatably connected to the sliding groove inside the sliding block (27) and to the left of the first screw (6). A slider (8) is slidably connected to the sliding block (27). A first threaded hole (9) is provided on one side of the slider (8). A second threaded hole (10) is provided on one side of the slider (8) and to the left of the first threaded hole (9). The first threaded hole (9) and the first screw (6) are threaded together. The threaded hole (10) is threadedly connected to the second screw (7). A power transmission component is provided at the top of the slide block (27). Support frames (11) are fixedly connected to both sides of the slider (8). A rotating rod (12) is rotatably connected to one side of the support frame (11). A first rotating shaft (13) is fixedly connected to the rotating rod (12). Several connecting frames (14) are fixedly connected to both sides of the first rotating shaft (13). A fixed rod (15) is fixedly connected to one side of the connecting frame (14). A storage component is rotatably connected to the fixed rod (15). A rotating component is provided on one side of the support frame (11). Universal wheels (2) are fixedly connected to the four corners of the bottom of the base plate (1).

2. The maintenance lifting trolley according to claim 1, characterized in that: The support and fixing assembly includes a hydraulic cylinder (4) fixedly connected to the hydraulic hole (3), and a support plate (5) is fixedly connected to the output end of the hydraulic cylinder (4).

3. The maintenance lifting trolley according to claim 1, characterized in that: The power transmission assembly includes a first connecting rod (19) rotatably connected to the top of the slide block (27) and above the first screw (6). A drive gear (20) is fixedly connected to the top of the first connecting rod (19). One end of the first connecting rod (19) passes through the slide block (27) and is fixedly connected to one end of the first screw (6). A second connecting rod (21) rotatably connects to the top of the slide block (27) and above the second screw (7). A driven gear (22) is fixedly connected to the top of the second connecting rod (21). One end of the second connecting rod (21) passes through the slide block (27) and is fixedly connected to one end of the second screw (7). The drive gear (20) and the driven gear (22) are driven by a chain (23). Support columns (24) are fixedly connected to the top of the slide block (27) and on both the left and right sides of the first connecting rod (19). A power assembly is provided at the top of the support columns (24).

4. A maintenance lifting trolley according to claim 3, characterized in that: The power assembly includes a motor support plate (25) fixedly connected to the top of the support column (24). A servo motor (26) is fixedly connected to the top of the motor support plate (25). The output end of the servo motor (26) passes through the motor support plate (25) and is fixedly connected to one side of the drive gear (20).

5. A maintenance lifting trolley according to claim 1, characterized in that: The storage assembly includes a second rotating shaft (16) rotatably connected to the fixing rod (15), and a storage box (18) is fixedly connected to the second rotating shaft (16).

6. A maintenance lifting trolley according to claim 1, characterized in that: The rotating assembly includes a third connecting rod (28) rotatably connected to the support frame (11), a throttle (29) is fixedly connected to the third connecting rod (28), one end of the third connecting rod (28) passes through the support frame (11) and is fixedly connected to one end of the rotating rod (12).