A maintenance device for a hoisting apparatus
By designing a crane maintenance device with adjustable platform height and tool storage, the problems of worker discomfort and low efficiency caused by fixed platform height are solved, thereby improving maintenance efficiency and reducing safety risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAITAO LIFTING EQUIPMENT (YICHANG) CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-14
Smart Images

Figure CN224496338U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crane maintenance technology, and in particular to a maintenance device for crane equipment. Background Technology
[0002] In industrial production, construction, port logistics and other fields, lifting equipment (such as tower cranes, bridge cranes, truck cranes, etc.) are the core equipment for material handling and hoisting. Their safe and stable operation is directly related to production efficiency and operational safety. Due to long-term heavy load and high-frequency operation, and often exposed to the open environment, the metal structure, hydraulic system, electrical components and other parts of lifting equipment are prone to wear, corrosion and aging. Therefore, regular maintenance is required.
[0003] Currently, the maintenance and repair of lifting equipment largely relies on manual operation. Workers need to use mobile platforms to approach the parts of the equipment to be maintained. However, the platform height of existing mobile platforms is mostly fixed and cannot be flexibly adjusted according to the height of different maintenance points on the lifting equipment. When the height of the maintenance point does not match the platform height, workers need to frequently bend over, stand on tiptoe, or use additional props, making it difficult to maintain a comfortable working posture. This not only increases physical exertion but also easily leads to operational errors and reduces maintenance efficiency. At the same time, some maintenance points of lifting equipment are located at height or in narrow areas. Fixed platform heights make it difficult for workers to accurately approach the work position, requiring them to complete the operation through dangerous actions such as climbing and stretching, which poses safety hazards such as falls and collisions.
[0004] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: when workers use the mobile platform to maintain and repair lifting equipment, the fixed height of the platform prevents workers from working in a comfortable posture, resulting in low work efficiency. Summary of the Invention
[0005] The technical problem to be solved by this utility model is that the height of the pedal in the prior art is fixed, which makes it impossible for the staff to work in a comfortable posture when using the mobile platform to maintain and repair the lifting equipment, resulting in low work efficiency. Therefore, we propose a maintenance and repair device for lifting equipment.
[0006] To achieve the above objectives, this application adopts the following technical solution: a maintenance device for lifting equipment, comprising a mobile platform body, an adjustment device provided on the surface of the mobile platform body, the adjustment device including a pedal, the pedal being slidably connected to the surface of the mobile platform body, four fixing rods being fixedly connected to the surface of the pedal, an L-shaped plate being slidably connected to the arc surface of the fixing rods, an insert rod being fixedly connected to the surface of the L-shaped plate, and a plurality of slots being provided on the surface of the mobile platform body.
[0007] Preferably, four square blocks are fixedly connected to the surface of the pedal, and a limiting rod is slidably inserted into the square block. One end of the limiting rod is fixedly connected to a limiting block, and the limiting block is slidably connected to the surface of the pedal.
[0008] Preferably, the arc surface of the fixing rod is fitted with a spring, and the two ends of the spring are fixedly connected to the pedal and the L-shaped plate, respectively.
[0009] Preferably, the surface of the pedal is fixedly connected with a plurality of anti-slip protrusions, and the plurality of anti-slip protrusions are arranged in a straight line.
[0010] Preferably, the surface of the pedal is provided with a storage device, the storage device includes a storage compartment, the storage compartment is fixedly connected to the surface of the pedal, the surface of the storage compartment is slidably connected to a storage box, and the surface of the storage box is fixedly connected to a handle.
[0011] Preferably, the surface of the storage compartment is fixedly connected to two fixing blocks, the surface of the fixing blocks is rotatably connected to a rotating rod, one end of the rotating rod is fixedly connected to a limit plate, and the surface of the storage box is fixedly connected to two L-shaped blocks.
[0012] Preferably, the arc surface of the rotating rod is fitted with a torsion spring, and the two ends of the torsion spring are respectively fixedly connected to the fixing block and the limiting plate.
[0013] The technical effects and advantages of this utility model are as follows:
[0014] In this utility model, by setting an adjustment device, the height of the pedal is conveniently adjusted by the staff, which avoids the situation where the staff cannot work in a comfortable posture due to the fixed height of the pedal when using the mobile platform to maintain the lifting equipment, resulting in low work efficiency.
[0015] In this utility model, by setting up a storage device, the effect of conveniently storing tools for workers is achieved, avoiding the situation where workers have no suitable place to put their tools when repairing lifting equipment, which would force them to place the tools on the pedal surface, causing workers to easily step on the tools and fall. Attached Figure Description
[0016] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the adjusting device in this utility model;
[0019] Figure 3 In this utility model Figure 2 Enlarged view of point A;
[0020] Figure 4 This is a schematic diagram of the storage device in this utility model;
[0021] Figure 5 This is a partial structural diagram of the storage device in this utility model.
[0022] Legend: 1. Mobile platform body; 2. Adjustment device; 3. Storage device; 201. Pedal; 202. Fixing rod; 203. L-shaped plate; 204. Insert rod; 205. Slot; 206. Square block; 207. Limiting rod; 208. Limiting block; 209. Spring; 210. Anti-slip protrusion; 31. Storage compartment; 32. Storage box; 33. Handle; 34. Fixing block; 35. Rotating rod; 36. Limiting plate; 37. L-shaped block; 38. Torsion spring. Detailed Implementation
[0023] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0024] Reference Figure 1 As shown, this utility model provides a technical solution: a maintenance and repair device for lifting equipment, including a mobile platform body 1. The surface of the mobile platform body 1 is provided with an adjustment device 2. By setting the adjustment device 2, the height of the pedal 201 can be easily adjusted by the operator, avoiding the situation where the operator cannot work in a comfortable posture due to the fixed height of the pedal 201 when using the mobile platform body 1 to maintain and repair the lifting equipment, resulting in low work efficiency. The surface of the pedal 201 is provided with a storage device 3. By setting the storage device 3, the operator can easily store tools, avoiding the situation where the operator has no suitable place to put the tools when repairing the lifting equipment, and the operator has to place the tools on the surface of the pedal 201, which may cause the operator to step on the tools and fall.
[0025] Reference Figure 2 and Figure 3As shown in this embodiment: the adjustment device 2 includes a pedal 201, which is slidably connected to the surface of the moving platform body 1. Four fixing rods 202 are fixedly connected to the surface of the pedal 201. An L-shaped plate 203 is slidably connected to the arc surface of the fixing rods 202. An insertion rod 204 is fixedly connected to the surface of the L-shaped plate 203. Several slots 205 are opened on the surface of the moving platform body 1. Four square blocks 206 are fixedly connected to the surface of the pedal 201. A limiting rod 207 is slidably inserted into the square block 206. One end of the limiting rod 207 is fixedly connected to a limiting block 208. The limiting block 208 is slidably connected to the surface of the pedal 201. The limiting block 208 achieves the effect of restricting the movement of the insertion rod 204, thus preventing the worker from being injured. When the operator moves the pedal 201, it shakes, causing the insertion rod 204 to shift and collide with the slot 205, resulting in damage to the insertion rod 204. The arc surface of the fixing rod 202 is fitted with a spring 209, and the two ends of the spring 209 are fixedly connected to the pedal 201 and the L-shaped plate 203, respectively. The rebound force of the spring 209 achieves the effect of automatically inserting the insertion rod 204, while restricting the movement of the insertion rod 204, thus improving the stability of the insertion rod 204 when fixing the pedal 201. Several anti-slip protrusions 210 are fixedly connected to the surface of the pedal 201. The anti-slip protrusions 210 are arranged in a straight line, which increases the friction and prevents the operator from slipping.
[0026] Reference Figure 4 and Figure 5 As shown in this embodiment: the storage device 3 includes a storage compartment 31, which is fixedly connected to the surface of the pedal 201. A storage box 32 is slidably connected to the surface of the storage compartment 31. A handle 33 is fixedly connected to the surface of the storage box 32. Two fixing blocks 34 are fixedly connected to the surface of the storage compartment 31. A rotating rod 35 is rotatably connected to the surface of the fixing blocks 34. A limit plate 36 is fixedly connected to one end of the rotating rod 35. Two L-shaped blocks 37 are fixedly connected to the surface of the storage box 32. The limit plate 36 can restrict the sliding of the storage box 32, preventing the storage box 32 from sliding out of the surface of the storage compartment 31 when the operator adjusts the height of the pedal 201. A torsion spring 38 is sleeved on the arc surface of the rotating rod 35. The two ends of the torsion spring 38 are fixedly connected to the fixing blocks 34 and the limit plate 36, respectively. The torque of the torsion spring 38 can automatically rotate the limit plate 36 back to its original position, reducing the operator's operation steps and facilitating the operator to perform the next operation.
[0027] Working principle: When the operator needs to adjust the height of the pedal 201, the L-shaped plate 203 is moved, the spring 209 is stretched, and the L-shaped plate 203 drives the sliding rod 204 to move. When the rod 204 is completely disengaged from the surface of the slot 205, the rod 204 releases its fixation to the pedal 201, pushing the limit rod 207 to move the limit block 208. When the limit block 208 moves between the L-shaped plate 203 and the pedal 201, the limit block 208 can restrict the movement of the L-shaped plate 203. At this time, the limit block 208 can indirectly fix the rod 204, allowing the pedal 201 to move. The pedal 201 is located on the moving platform body 1. When the pedal 201 is adjusted to a suitable height, the limit rod 207 is pulled to move the limit block 208. When the limit block 208 no longer blocks the movement of the L-shaped plate 203, the rebound force of the spring 209 moves the L-shaped plate 203. The L-shaped plate 203 moves the insertion rod 204 until the insertion rod 204 is inserted into the surface of the slot 205. At this time, the height of the pedal 201 is adjusted. The operator can use the mobile platform body 1 to perform maintenance on the lifting equipment. When the operator steps on the surface of the pedal 201, the anti-slip protrusions 210 can increase the friction and prevent the operator from slipping.
[0028] When the staff needs to take out the tools stored in the storage box 32, they rotate the limiting plate 36. The limiting plate 36 drives the rotating rod 35 to rotate. When the limiting plate 36 is completely detached from the surface of the storage box 32, the limiting plate 36 releases its fixation to the storage box 32. The handle 33 is moved, and the handle 33 drives the storage box 32 to slide on the surface of the storage compartment 31. When the storage box 32 is fully opened, the staff can take out the tools from the storage box 32. After the tools are used, they can be put back into the storage box 32. Then the storage box 32 is moved back to its original position, the limiting plate 36 is released, and the torque of the torsion spring 38 drives the limiting plate 36 to rotate. The limiting plate 36 drives the rotating rod 35 to rotate. When the limiting plate 36 contacts the surface of the L-shaped block 37, the limiting plate 36 can restrict the movement of the storage box 32.
[0029] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A maintenance and repair device for lifting equipment, characterized in that, The system includes a mobile platform body (1), and an adjustment device (2) is provided on the surface of the mobile platform body (1). The adjustment device (2) includes a pedal (201), which is slidably connected to the surface of the mobile platform body (1). Four fixing rods (202) are fixedly connected to the surface of the pedal (201). An L-shaped plate (203) is slidably connected to the arc surface of the fixing rod (202). A plug rod (204) is fixedly connected to the surface of the L-shaped plate (203). Several slots (205) are provided on the surface of the mobile platform body (1).
2. The maintenance and repair device for lifting equipment according to claim 1, characterized in that: Four square blocks (206) are fixedly connected to the surface of the pedal (201). A limiting rod (207) is slidably inserted in the square block (206). One end of the limiting rod (207) is fixedly connected to a limiting block (208). The limiting block (208) is slidably connected to the surface of the pedal (201).
3. The maintenance and repair device for lifting equipment according to claim 1, characterized in that: The arc surface of the fixing rod (202) is fitted with a spring (209), and the two ends of the spring (209) are fixedly connected to the pedal (201) and the L-shaped plate (203) respectively.
4. The maintenance and repair device for lifting equipment according to claim 1, characterized in that: The surface of the pedal (201) is fixedly connected with a plurality of anti-slip protrusions (210), which are arranged in a straight line.
5. A maintenance and repair device for lifting equipment according to claim 1, characterized in that: The surface of the pedal (201) is provided with a storage device (3), the storage device (3) includes a storage compartment (31), the storage compartment (31) is fixedly connected to the surface of the pedal (201), the surface of the storage compartment (31) is slidably connected to a storage box (32), and the surface of the storage box (32) is fixedly connected to a handle (33).
6. A maintenance and repair device for lifting equipment according to claim 5, characterized in that: The surface of the storage compartment (31) is fixedly connected to two fixed blocks (34), and the surface of the fixed blocks (34) is rotatably connected to a rotating rod (35). One end of the rotating rod (35) is fixedly connected to a limit plate (36), and the surface of the storage box (32) is fixedly connected to two L-shaped blocks (37).
7. A maintenance and repair device for lifting equipment according to claim 6, characterized in that: The rotating rod (35) has a torsion spring (38) fitted on its arc surface. The two ends of the torsion spring (38) are fixedly connected to the fixing block (34) and the limiting plate (36) respectively.