Heavy equipment auxiliary jacking device applied to limited space
By drilling holes in heavy equipment and using an auxiliary lifting device for double-sided fixation, the problem of heavy equipment being unable to be lifted in existing technologies is solved, achieving safe and efficient lifting and transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU ANSHENGDA AEROSPACE TECH CO LTD
- Filing Date
- 2025-02-27
- Publication Date
- 2026-05-05
AI Technical Summary
Existing technologies cannot effectively lift heavy equipment in confined spaces, and the existing jack claws are prone to breakage when subjected to force, thus failing to meet the lifting requirements of heavy equipment.
Design an auxiliary lifting device, including a bottom fixing plate, a waist plate and a top plate. By drilling holes in the equipment and fixing it with bolts and nuts, the contact area is increased, and a jack is used to lift it up, achieving double-sided fixing and enhancing the connection strength.
The ability to safely and without damage lift heavy equipment within a confined space improves the efficiency and stability of post-lifting handling and avoids damage to the equipment.
Smart Images

Figure CN224199097U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heavy equipment auxiliary devices, and in particular to a heavy equipment auxiliary lifting device applied in a confined space. Background Technology
[0002] Heavy machinery placed on the workshop floor cannot be lifted using overhead cranes, mobile cranes, or electric hoists due to workshop height limitations, making it impossible to move the equipment after lifting. It's also impossible to lift the equipment and place wheels underneath. Therefore, an auxiliary lifting device needs to be designed to lift the equipment safely and without damage, allowing for the addition of a rolling mechanism underneath for easy lifting and subsequent movement.
[0003] The existing technology, authorized by publication number CN201901585U, describes a jack attachment claw. The jack attachment claw includes an upper top plate for jack lifting, a lower top plate extending under the equipment to be lifted, and a connecting plate connecting the upper and lower top plates. The upper and lower top plates are horizontally arranged, and the connecting plate vertically connects one end of the upper top plate and the other end of the lower top plate. Its bottom is designed to fit into the bottom of the heavy equipment, allowing for lifting by supporting the top plate with the jack. However, if it cannot fit into the bottom of the equipment, lifting and subsequent transport are not possible. Furthermore, since only the bottom is the stress point for connecting with the equipment, its load-bearing capacity is relatively low. Therefore, when the equipment to be lifted and transported is heavy, it cannot meet the above requirements and may break.
[0004] Therefore, it is necessary to design a heavy equipment auxiliary lifting device for use in confined spaces to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide an auxiliary lifting device for heavy equipment in confined spaces, so as to overcome the above-mentioned shortcomings of the existing technology.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A heavy equipment auxiliary lifting device for use in confined spaces includes heavy machinery, an auxiliary lifting device that is attached to the side of the heavy machinery and works with the machinery's feet, and a jack. The auxiliary lifting device includes a bottom fixing plate installed with the machinery's feet, a waist plate connected to the bottom fixing plate and attached to the machinery, a top plate located on the upper part of the waist plate and above the bottom fixing plate, and side plates respectively located on both sides of the waist plate and connecting the bottom fixing plate and the top plate. Several fixing holes are provided on both the bottom fixing plate and the waist plate. The fixing holes on the bottom fixing plate are used for installation with the heavy machinery via bolts and nuts. The width of the top plate is wider than that of the bottom fixing plate.
[0008] Preferably, the bottom fixing plate, waist plate, and top plate are formed as one piece by welding or by integral processing.
[0009] Preferably, the fixing holes of the waist plate are used for installation with heavy machinery and are installed using bolts and nuts.
[0010] Preferably, the top plate is at least twice as wide as the bottom fixing plate.
[0011] Preferably, the jack is positioned below the top plate.
[0012] The beneficial effects of this utility model are: This technical solution achieves double-sided fixation by drilling holes in the equipment and using this device in conjunction with the equipment connection and the equipment's feet, thereby increasing the overall contact area and ensuring the connection strength between the device and the equipment. After being lifted by a jack, it can withstand sufficient force and is suitable for lifting and moving heavy equipment in confined environments, thus improving efficiency. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of an auxiliary lifting device for heavy equipment applied in a confined space according to the present invention;
[0014] Figure 2 This is a schematic diagram of a specific embodiment of the auxiliary lifting device for heavy equipment applied in a confined space according to the present invention;
[0015] Figure 3 This is another schematic diagram of a specific implementation scheme of the auxiliary lifting device for heavy equipment applied in a confined space according to the present invention;
[0016] In the diagram: 1. Heavy machinery and equipment; 2. Auxiliary lifting device; 21. Bottom fixing plate; 22. Waist plate; 23. Top plate; 24. Side plate; 11. Fixing hole. Detailed Implementation
[0017] Reference Figures 1 to 3 A heavy equipment auxiliary lifting device for use in confined spaces includes heavy machinery 1 and an auxiliary lifting device 2 that works with the heavy machinery feet and is attached to the side of the heavy machinery.
[0018] The auxiliary lifting device includes a bottom fixing plate 21 that is installed with the feet of the heavy machinery, a waist plate 22 that is connected to the bottom fixing plate and attached to the heavy machinery, a top plate 23 that is located on the upper part of the waist plate and above the bottom fixing plate, and side plates 24 that are respectively located on both sides of the waist plate and connect the bottom fixing plate and the top plate to each other.
[0019] The bottom fixing plate 21, waist plate 22, and top plate 23 are formed as one piece by welding or by integral processing.
[0020] Several fixing holes 11 are provided on the bottom fixing plate 21 and the waist plate 22. The fixing holes on the bottom fixing plate 21 are used to fix the heavy machinery equipment 1 to the machine feet and fix them together with bolts and nuts. The fixing holes on the waist plate 22 are used to fix the heavy machinery equipment together with bolts and nuts, thereby realizing the fixed connection between the bottom and the side. The fixation on both sides strengthens the fixation between the entire auxiliary lifting device and the heavy machinery equipment 1, and increases the strength and stability.
[0021] To ensure that the jack can lift the plate without interfering with it, the top plate 23 is wider than the bottom fixed plate 21, and the top plate 23 is at least twice as wide as the bottom fixed plate 21. This ensures that the jack can lift the top plate without contacting the bottom fixed plate 21, thus avoiding contact between the two plates.
[0022] In a specific implementation case, when using the equipment, drill the corresponding screw holes at the bottom of the equipment near the ground to fix the waist plate to the equipment, and then use a hydraulic jack to support the auxiliary lifting device to lift the equipment up.
[0023] Alternatively, the bottom fixing plate can be connected to the bolt holes of the original foot positions of the equipment, and the equipment can be lifted by using hydraulic jacks to support the auxiliary lifting device.
[0024] Add rolling wheels under the lifted equipment to facilitate transportation. In practice, at least three auxiliary lifting devices should be installed, and the center of gravity of the equipment should be within the envelope of several auxiliary lifting devices to keep the equipment at the same height after being lifted, and to prevent the center of gravity from becoming unstable, making the equipment less prone to tilting or tipping over.
[0025] The advantages of this utility model are that by drilling holes in the equipment, this technical solution uses this device in conjunction with the equipment connection and the equipment's feet for fixation, thereby achieving double-sided fixation, increasing the overall contact area, ensuring the connection strength between the device and the equipment, and being able to withstand sufficient force after being lifted by a jack. It is suitable for lifting and moving heavy equipment in confined environments, improving efficiency.
[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A heavy equipment auxiliary lifting device for use in confined spaces, comprising heavy machinery, an auxiliary lifting device that cooperates with the machine feet of the heavy machinery and is attached to the side of the heavy machinery, and a jack, characterized in that: The auxiliary lifting device includes a bottom fixing plate that is installed with the feet of the heavy machinery, a waist plate that is connected to the bottom fixing plate and attached to the heavy machinery, a top plate that is located on the upper part of the waist plate and above the bottom fixing plate, and side plates that are respectively located on both sides of the waist plate and connect the bottom fixing plate and the top plate to each other. Several fixing holes are provided on the bottom fixing plate and the waist plate. The fixing holes provided on the bottom fixing plate are used to install the heavy machinery with bolts and nuts. The width of the top plate is wider than that of the bottom fixing plate.
2. The auxiliary lifting device for heavy equipment in confined spaces according to claim 1, characterized in that: The bottom fixing plate, waist plate, and top plate are formed as one piece by welding or by integral processing.
3. The auxiliary lifting device for heavy equipment in confined spaces according to claim 1, characterized in that: The mounting holes of the waist plate are designed for installation with heavy machinery and are secured with bolts and nuts.
4. The auxiliary lifting device for heavy equipment in a confined space according to claim 1, characterized in that: The top plate is at least twice as wide as the bottom fixing plate.
5. The auxiliary lifting device for heavy equipment in a confined space according to claim 1, characterized in that: The jack is positioned below the top plate.
Citation Information
Patent Citations
Accessory claw for jack
CN201901585U