Modular mini-crane

Abstract

The utility model discloses a modularization small -size crane relates to hoist technical field, including support module and operation module, support module includes base, and the upper end fixedly connected with the clamping frame of base, and operation module includes the boom, and the lower fixedly connected with the base plate of boom, and the base plate is inserted in the clamping frame, and the limiting mechanism, and the limiting mechanism sets up on the base, and the limiting mechanism is used in the one end of base plate, and fixed base plate, and the lower end four corner department of base is equipped with the universal wheel for moving, and the filling frame for filling gap is clamped between base plate and clamping frame, and the boom is through base plate and clamping frame and base splicing combination, and through limiting mechanism further fixed boom, solved the existing small -size crane dismounting has tool dependency, and needs to spend long time in the dismounting process, and influence work efficiency, and after crane dismounting, still need space to store the problem of separating component.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, specifically a modular small crane. Background Technology

[0002] Mini cranes are widely used in construction, warehousing, and logistics, primarily for moving and lifting heavy objects. They typically consist of an electric or manual drive system, a boom, ropes or chains, a hook, and a control system. Mini cranes are designed for flexibility and portability, making them suitable for operation in confined spaces and capable of meeting lifting needs for varying heights and weights.

[0003] The working principle of a small crane is relatively simple. It uses an electric motor or manual operation to rotate or raise the boom, and then uses ropes or chains to safely lift heavy objects. Its load capacity is generally between several hundred kilograms and several tons, and it can easily handle various scenarios such as home renovation, construction site work, and warehouse handling.

[0004] However, existing small cranes, for ease of relocation, typically separate the base and boom, stacking the boom and base together after folding. However, most existing booms and bases are connected by bolts, requiring tools for assembly and disassembly, creating a tool dependency. The disassembly and assembly process is time-consuming, impacting work efficiency. After disassembly, space is also needed to store the separated components. To address these issues, a modular small crane is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a modular small crane to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular small crane, comprising a support module and an operation module; The support module includes a base, and a clip frame is fixedly connected to the upper end of the base; The operating module includes a boom, and a base plate is fixedly connected to the lower end of the boom. The base plate is inserted into the frame. The limiting mechanism is set on the base and is used to abut against one end of the base plate to fix the base plate.

[0007] As a preferred embodiment of this utility model, casters for movement are installed at the four corners of the lower end of the base.

[0008] As a preferred technical solution of this utility model, a filling frame for filling the gap is engaged between the base plate and the card frame.

[0009] As a preferred technical solution of this utility model, the limiting mechanism includes a limiting plate, a lead screw and a threaded cylinder. The limiting plate is slidably installed on the upper end of the base, the threaded cylinder is rotatably installed in the base, one end of the lead screw is rotatably connected to one end of the limiting plate, and the other end of the lead screw is threadedly connected in the threaded cylinder.

[0010] As a preferred technical solution of this utility model, a rotating component for controlling the rotation of the threaded cylinder is rotatably inserted into one end of the base.

[0011] As a preferred embodiment of this utility model, the rotating component is configured as a rotating wheel.

[0012] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the boom is assembled with the base via a base plate and a frame, and the boom is further secured by a limiting mechanism. This solves the problems of existing small cranes that rely on tools for assembly and disassembly, require a long time to assemble and disassemble, affecting work efficiency, and require space to store the disassembled parts after the crane is disassembled. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the crane according to an embodiment of the present utility model; Figure 2 This is an embodiment of the present utility model. Figure 1 Enlarged view of point A in the middle; Figure 3 This is a partial structural diagram of the crane according to an embodiment of the present utility model; Figure 4 This is a partial exploded view of the crane according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the overall structure of the base according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the limiting mechanism structure according to an embodiment of the present utility model.

[0014] In the diagram: 1. Base; 11. Casters; 2. Boom; 21. Base plate; 3. Frame; 31. Filler frame; 4. Limiting mechanism; 41. Limiting plate; 42. Lead screw; 43. Threaded cylinder; 44. Rotating component. Detailed Implementation

[0015] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-6 This embodiment provides a modular small crane, including a support module and an operation module. The support module includes a base 1, which bears the overall weight of the crane and the load generated when lifting heavy objects. Casters 11 are installed at the lower corners of the base 1 to facilitate the overall movement of the crane. The operation module includes a boom 2, which consists of a support column, a telescopic boom, a pulley mechanism, and a hook. The reference model YDSSD small lifting hydraulic crane operates primarily based on the lever principle and mechanical transmission. When the motor starts, the drive system transmits power to the telescopic boom via pulleys, causing it to lift, lower, or rotate. The movement of the telescopic boom is connected to the hook via ropes or chains, and the hook is used to hang heavy objects. The operator can precisely control the crane's movements via a remote control to safely lift and move heavy objects.

[0017] In most existing cranes, the base 1 and boom 2 are connected by screws. To facilitate the installation of boom 2, a base plate 21 is fixedly connected to the lower end of boom 2, and an installation platform is provided at the upper end of the base 1. A clamping frame 3 is fixedly connected to the installation platform. Figure 3 and Figure 4 As shown, the base plate 21 can be slidably inserted into the frame 3 from one side opening, thereby connecting the boom 2 to the base 1. Most existing crane boom 2 base plates 21 have through holes, and the mounting platform of the base 1 has threaded holes aligned with the user's base plate 21. A screw passes through the through hole of the base plate 21 and connects to the threaded hole of the mounting platform, thus connecting the base 1 to the boom 2. Compared to existing connection methods, the snap-fit ​​connection using the base plate 21 and frame 3 is faster, requires no tools, and has no extra separating parts.

[0018] The base 1 can be fitted with booms 2 of different sizes, specifications and functions as needed. In order to make the base 1 compatible with more booms 2, a filling frame 31 is fitted inside the frame 3. The filling frame 31 can be selected according to the base plate 21 of the boom 2, so that the filling frame 31 is fitted onto the base plate 21, and then slides into the frame 3 with the base plate 21. The filling frame 31 fills the gap between the base plate 21 and the frame 3, stabilizing the base plate 21 while being compatible with the base plates 21 of more booms 2.

[0019] The clamping frame 3 has an opening on one side, which can cause vibrations during crane operation, potentially leading to the base plate 21 detaching from the clamping frame 3. To further secure the base plate 21, a limiting mechanism 4 is installed at the upper end of the base 1. Figure 1 and Figure 6As shown, the limiting mechanism 4 includes a limiting plate 41, a lead screw 42, and a threaded cylinder 43. The limiting plate 41 is slidably installed on the upper end of the base 1. The threaded cylinder 43 is rotatably installed in the base 1 through a bracket, and a threaded hole is opened at the end of the threaded cylinder 43 facing the frame 3. One end of the lead screw 42 is rotatably connected to the end of the limiting plate 41 away from the frame 3, and the other end of the lead screw 42 is threadedly connected to the threaded hole of the threaded cylinder 43. By rotating the threaded cylinder 43, the extension and retraction of the lead screw 42 can drive the limiting plate 41 to slide on the base 1. Multiple limiting rods are installed at the end of the limiting plate 41 facing the frame 3. After the base plate 21 is installed in the frame 3, the limiting plate 41 is moved so that the limiting rods abut against one side of the base plate 21, thereby limiting the base plate 21 and preventing the base plate 21 from sliding from the opening of the frame 3, which would cause the boom 2 to separate from the base 1 when the crane is working.

[0020] like Figure 1 and Figure 6 As shown, to facilitate the rotation of the threaded cylinder 43, a rotating component 44 is rotatably inserted into one end of the base 1. The rotating component 44 is preferably a rotating wheel, one end of which is connected to the threaded cylinder 43. Rotating the rotating wheel will drive the threaded cylinder 43 to rotate. The rotating component 44 is not limited to a rotating wheel; it can also be a rocker arm or a motor. When a motor is used, the motor is fixedly connected to one end of the base 1, and the output shaft of the motor passes through one end of the base 1 and is connected to the threaded cylinder 43. Starting the motor will drive the threaded cylinder 43 to rotate.

[0021] 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.

Claims

1. A modular small crane, characterized in that, include: Support module and operation module; The support module includes a base (1), and a card frame (3) is fixedly connected to the upper end of the base (1). The operation module includes a boom (2), the lower end of which is fixedly connected to a base plate (21), which is inserted into a frame (3); Limiting mechanism (4) is set on base (1) and is used to abut against one end of base plate (21) to fix base plate (21).

2. The modular small crane according to claim 1, characterized in that: The base (1) is equipped with casters (11) for movement at the four corners of its lower end.

3. The modular mini crane according to claim 1, characterized in that: A filling frame (31) for filling gaps is engaged between the base plate (21) and the frame (3).

4. A modular small crane according to claim 1, characterized in that: The limiting mechanism (4) includes a limiting plate (41), a lead screw (42) and a threaded cylinder (43). The limiting plate (41) is slidably installed on the upper end of the base (1). The threaded cylinder (43) is rotatably installed inside the base (1). One end of the lead screw (42) is rotatably connected to one end of the limiting plate (41), and the other end of the lead screw (42) is threadedly connected inside the threaded cylinder (43).

5. A modular small crane according to claim 4, characterized in that: One end of the base (1) is rotatably connected to a rotating component (44) for controlling the rotation of the threaded cylinder (43).

6. A modular small crane according to claim 5, characterized in that: The rotating component (44) is configured as a rotating wheel.

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