Multifunctional supporting leg base plate for crane
By designing a multifunctional outrigger pad, using shackles and straps to connect the pad to the outrigger, and adding counterweights, the problems of the outrigger pad being unable to move and the crane being unstable are solved, achieving a stable connection and improving lifting safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUZHOU HEAVY MASCH CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-05-05
AI Technical Summary
Existing outrigger pads cannot move short distances with the crane, have limited functionality, and pose a risk of tipping over when the crane is in strong winds or lifting heavy objects, resulting in poor stability.
Design a multi-functional outrigger pad, which is connected to the outrigger by shackles and straps. The counterweight can increase stability. The pad is rigidly connected to the outrigger, and the counterweight can increase the lifting stability when needed.
It enables convenient movement and stable connection of the outrigger pads, enhancing the lifting stability and safety of the crane, preventing tipping, and reducing ground damage.
Smart Images

Figure CN224199016U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cranes, and in particular to a multifunctional outrigger pad for cranes. Background Technology
[0002] Outrigger pads are devices placed under the outriggers during crane lifting operations to increase the contact area between the crane and the ground, improving the stress distribution on the ground. They are often used as auxiliary facilities when working on paved surfaces such as in ports, docks, or factories where the ground is not heavily paved.
[0003] However, existing technology such as "Outrigger Pad and Construction Machinery", application number 2021221116925, provides an outrigger pad and construction machinery. The outrigger pad is used to place between the outrigger plate and the ground. The outrigger pad includes a plate body and a locking mechanism. The locking mechanism is installed on the plate body and is detachably locked to the outrigger plate.
[0004] However, existing technologies can only transport goods over short distances and cannot move them directly. They have limited functionality and poor stability. For example, when lifting operations are carried out in ports, docks, wind power plants, or other areas with strong winds, or when heavy objects are subjected to unexpected impacts, the cranes are at risk of tipping over and becoming unstable.
[0005] Therefore, it is necessary to develop new types of support pads to overcome the above problems. Utility Model Content
[0006] Purpose of the utility model: In view of the shortcomings and defects of the existing technology, this utility model provides a multi-functional outrigger pad for cranes, which can be moved short distances with the crane in a certain workplace without the need to transport the outrigger pad separately; it can provide stable ground support and reduce the damage to the ground caused by the pressure of the outriggers; the outrigger pad can be rigidly connected to the outriggers; and counterweights can be added to the outrigger pad to increase the lifting stability of the crane and prevent tipping.
[0007] Technical solution: The present invention relates to a multifunctional outrigger pad for cranes, characterized in that: it includes a pad and an outrigger, the pad and the outrigger are connected by several shackles and straps, the outrigger is connected to the outrigger plate by a vertical hydraulic cylinder, the pad is located below the outrigger plate, and the pad may or may not be provided with a counterweight.
[0008] The support leg has a buckle at its end.
[0009] The number of shackles is 4, and the shackles are located at the 4 corners of the pad.
[0010] The shackles at the four corners of the pad are in groups of two, and the shackles in the same group are connected by passing through the buckle body at the end of the outrigger or through the binding strap above the outrigger.
[0011] The counterweight has a U-shaped structure.
[0012] The counterweight has a groove in the middle for the vertical cylinder to pass through.
[0013] The outriggers are located on the crane.
[0014] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: The present invention can provide stable ground support and reduce the damage to the ground caused by the pressure of the outriggers; it can complete the connection between the outrigger pads and the outriggers, and move with them, so that the outrigger pads do not need to be disassembled when making short-distance relocations; it can increase the lifting stability and safety of the crane, and due to the counterweight effect of the outrigger pads, the outriggers can be pressed down steadily, preventing the crane from tipping over and increasing the lifting performance of the crane. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the structure of this utility model in the unweighted state;
[0017] In the diagram, 1 is the pad; 2 is the counterweight; 3 is the shackle; 4 is the binding strap; 5 is the support plate; 6 is the vertical cylinder; and 7 is the support leg. Detailed Implementation
[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0019] This utility model discloses a multi-functional outrigger pad for cranes, comprising a pad 1 and outriggers 7. The pad 1 and outriggers 7 are connected by several shackles 3 and binding straps 4. The outriggers 7 are connected to a foot support plate 5 via a vertical hydraulic cylinder 6. The pad 1 is located below the foot support plate 5, and the pad 1 may or may not have a counterweight 2. The outriggers 7 have buckles at their ends. There are four shackles 3 located at the four corners of the pad 1. The shackles 3 at the four corners of the pad 1 are grouped in pairs, and the shackles 3 in the same group are connected by passing through the buckles at the ends of the outriggers 7 or through the binding straps 4 above the outriggers 7. The counterweight 2 has a U-shaped structure. The counterweight 2 has a groove in the middle for the vertical hydraulic cylinder 6 to pass through. The outriggers 7 are located on the crane.
[0020] like Figure 1 , Figure 2This utility model discloses a multi-functional outrigger pad for cranes, comprising: 1. a pad; 2. a counterweight; 3. a shackle; 4. a binding strap; 5. an outrigger plate; 6. a vertical cylinder; and 7. outriggers. The shackle 3 and binding strap 4 connect the pad 1 and the outriggers 7 together, eliminating the need to disassemble the outrigger pad during short-distance relocation. The counterweight 4 increases stability during lifting operations. Under normal operating conditions, the counterweight is not required and can be placed in the middle of the vehicle. When the crane operates in conditions such as high wind speeds or with heavy loads, it can be mounted on the outrigger pad to hold down the outriggers, increasing stability and preventing tipping.
[0021] Under normal operating conditions, the pad 1 is placed under the outrigger plate 5. There is no need to add a counterweight 2 to the outrigger pad 1. It has the same function as an ordinary outrigger pad, which can provide stable ground support and reduce the damage to the ground caused by the pressure of the outriggers, thus ensuring the daily operation of the crane.
[0022] When a short-distance relocation is required within a work area, simply raise the vertical hydraulic cylinder 6 and the outrigger plate 5 a certain distance off the ground, place the pad 1 under the outrigger plate 5, and use the binding strap 4 to pass through the shackle 3 and the outrigger 7 to connect the pad 1 and the outrigger 7 together. Figure 2 As shown, short-distance relocation can be carried out without removing the foot pads.
[0023] When the crane operates under conditions of high wind speed or heavy loads, the pad 1 is placed under the outrigger plate 5. The pad 1 and outrigger 7 are connected by using the binding strap 4, which passes through the shackle 3 and the outrigger 7. The counterweight 2, positioned in the middle of the vehicle, is then lifted and placed on top of the pad 1. Figure 1 As shown, the connection is complete. In this state, when the crane operates under conditions such as high wind speed or heavy loads, the lifting stability and safety of the crane can be increased. Due to the counterweight effect of the outrigger pads, the outriggers can be steadily pressed down, preventing the crane from tipping over and increasing the crane's lifting performance.
Claims
1. A multi-functional outrigger pad for a crane, characterized in that: It includes a pad (1) and a support leg (7). The pad (1) and the support leg (7) are connected by several shackles (3) and binding straps (4). The support leg (7) is connected to the foot plate (5) by a vertical hydraulic cylinder (6). The pad (1) is located below the foot plate (5). The pad (1) may or may not be equipped with a counterweight (2).
2. The multi-functional outrigger pad for cranes according to claim 1, characterized in that: The support leg (7) is provided with a buckle at its end.
3. The multi-functional outrigger pad for cranes according to claim 2, characterized in that: The number of shackles (3) is 4, and the shackles (3) are located at the 4 corners of the pad (1).
4. The multi-functional outrigger pad for cranes according to claim 3, characterized in that: The shackles (3) at the four corners of the pad (1) are in groups of two. The shackles (3) in the same group are connected by passing through the buckle body at the end of the support leg (7) or through the binding strap (4) above the support leg (7).
5. The multi-functional outrigger pad for cranes according to claim 1, characterized in that: The counterweight (2) has a U-shaped structure.
6. The multi-functional outrigger pad for cranes according to claim 5, characterized in that: The counterweight (2) has a groove in the middle for the vertical cylinder (6) to pass through.
7. The multi-functional outrigger pad for cranes according to claim 1, characterized in that: The outrigger (7) is located on the crane.