Anti-skid and anti-falling mechanism of crane
By designing an anti-slip and anti-fall mechanism on the rail-mounted crane, and using a servo motor to drive the moving platform and hook lock assembly to achieve automatic anti-fall, the anti-slip assembly prevents slippage through the cooperation of the rotating rod and the rectangular bar, thus solving the slippage and anti-fall problems of the rail-mounted crane and improving the ease of use.
Patent Information
- Application Number
- CN202520109355.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Rail-mounted cranes may slip after prolonged use, and existing anti-slip mechanisms require manual assembly by workers, which is inconvenient.
A crane anti-slip and anti-fall mechanism was designed, including a mobile platform, servo motor-driven mobile wheels, hook lock assembly and anti-slip assembly. The servo motor controls the rotation of the mobile platform, the hook lock assembly achieves automatic anti-fall, and the anti-slip assembly achieves unidirectional movement to prevent slippage through the cooperation of the rotating rod and the rectangular bar.
It realizes the automatic anti-fall and anti-slip functions of the crane, improves the convenience of use, and avoids the phenomenon of slippage of the traveling wheels and cargo falling off.
Smart Images

Figure CN223866190U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of crane technology, specifically referring to a crane anti-slip and anti-fall mechanism. Background Technology
[0002] A rail-mounted crane is a type of lifting equipment that runs on rails and is mainly used for loading, unloading, and handling containers.
[0003] Existing rail-mounted cranes suffer from wear and tear on the surface of the traveling wheels due to prolonged use and friction. This reduces the contact area with the rail, leading to loose wheel-rail contact, instability, and wheel slippage. Furthermore, the anti-detachment mechanism on the hook at the working end of the crane usually requires manual assembly by workers before operation, which is cumbersome and inconvenient. Therefore, there is an urgent need for a crane anti-slip and anti-detachment mechanism to solve these problems. Utility Model Content
[0004] The technical problems to be solved by this utility model are that rail-mounted cranes may slip after long-term use, and the anti-derailment mechanism of existing rail-mounted cranes requires manual assembly by workers, which is not convenient.
[0005] To achieve the above functions, the technical solution adopted by this utility model is as follows: a crane anti-slip and anti-fall mechanism, including a slide rail and a mobile platform set at the upper end, the lower end of the mobile platform is uniformly rotatably connected to a mobile wheel that slides in the groove of the slide rail, the upper end of the mobile platform is rotatably provided with a crane body, and the lower end of the mobile platform is fixedly provided with a servo motor that drives the crane body to rotate, a power source is fixedly provided on one side wall of the crane body, a rope is connected to one end of the upper part of the crane body, and the other end of the rope is connected to a hook lock assembly, and anti-slip components are symmetrically provided on both sides of the mobile platform;
[0006] The hook-lock assembly includes a connecting seat that is fixedly connected to the rope, and a hook connected to the lower end of the connecting seat. The hook is provided with a limiting component to prevent the goods from falling off.
[0007] The anti-slip component includes rectangular bars arranged in a linear array within the groove of the slide rail, and rotating rods arranged on both sides of the moving platform that cooperate with the rectangular bars.
[0008] Furthermore, the limiting component includes a rectangular block fixedly connected to the hook, a limiting block rotatably provided at the upper end of the rectangular block, a through groove opened between the rectangular block and the limiting block, a spring fixedly connected at both ends to the rectangular block and the limiting block in the through groove, and baffle blocks for limiting the rotation of the limiting block symmetrically fixed to the two side walls at the lower end of the connecting seat.
[0009] Furthermore, the lower end of the partition block is provided with an inclined surface, and the inclined surface is in contact with the side wall of the limiting block.
[0010] Furthermore, two sets of rectangular grooves are mirrored on the two side walls of the mobile platform, and the rotating rod is rotatably disposed in the rectangular groove. The anti-slip component also includes a fixing block fixedly disposed at the upper end of the rectangular groove. A semi-circular ball is fixedly disposed on the rotating rod, and a circular groove for restricting the semi-circular ball is disposed at the lower end of the fixing block.
[0011] Furthermore, the hemispherical sphere is made of rubber material.
[0012] Furthermore, the movable wheel has a groove of the same size as the rectangular bar.
[0013] The beneficial effects of this utility model by adopting the above structure are as follows:
[0014] 1. It is equipped with a hook and lock assembly. The limit block connected to the hook rectangular block restricts the gap of the hook. When the limit block rotates to one side, the gap can be opened to hook the goods. Then, the spring between the limit block and the rectangular block resets them and is blocked by the barrier, thereby achieving the purpose of automatic anti-fall-off.
[0015] 2. It is equipped with anti-slip components. The displacement of the entire moving platform in one direction is limited by a rotating rod that can only rotate in one direction and a rectangular bar that abuts against the slide rail, so as to prevent slippage. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a crane anti-slip and anti-fall mechanism proposed in this solution. Figure 1 ;
[0017] Figure 2 This is a schematic diagram of the overall structure of a crane anti-slip and anti-fall mechanism proposed in this solution. Figure 2 ;
[0018] Figure 3 This is a schematic diagram of the hook assembly in this embodiment. Figure 1 ;
[0019] Figure 4 This is a schematic diagram of the hook assembly in this embodiment. Figure 2 ;
[0020] Figure 5 This is a schematic diagram of the anti-slip component in this embodiment.
[0021] Among them, 1. slide rail; 2. moving platform; 3. crane body; 4. power source; 5. rope; 6. servo motor; 7. connecting seat; 8. hook; 9. rectangular block; 10. limit block; 11. spring; 12. partition block; 13. moving wheel; 14. fixing block; 15. rectangular bar; 16. rotating rod; 17. semi-circular ball.
[0022] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0024] refer to Figure 1-5 As shown, in order to achieve the above functions, the technical solution adopted by this utility model is as follows: a crane anti-slip and anti-fall mechanism includes a slide rail 1 and a mobile platform 2 set at the upper end. The lower end of the mobile platform 2 is evenly rotatably connected to a mobile wheel 13 that slides in the groove of the slide rail 1. The upper end of the mobile platform 2 is rotatably provided with a crane body 3, and the lower end of the mobile platform 2 is fixedly provided with a servo motor 6 that drives the crane body 3 to rotate, which can control the rotation of the mobile platform 2 and adapt to different situations. A power source 4 is fixedly provided on one side wall of the crane body 3 to provide power for lifting goods. A rope 5 is connected to one end of the upper part of the crane body 3. The rope 5 is connected to the pulley, and the other end of the rope 5 is connected to a hook lock assembly. Anti-slip components are symmetrically provided on both sides of the mobile platform 2.
[0025] The hook-lock assembly includes a connecting seat 7 fixedly connected to the rope 5, and a hook 8 connected to the lower end of the connecting seat 7. The hook 8 is provided with a limiting component to prevent the goods from falling off.
[0026] The anti-slip component includes rectangular bars 15 arranged in a linear array within the groove of the slide rail 1, and rotating rods 16 arranged on both sides of the moving platform 2 to cooperate with the rectangular bars 15. The moving wheel 13 has a groove of the same size as the rectangular bars 15, so that the moving wheel can move normally on the slide rail.
[0027] like Figure 3 and Figure 4As shown, the limiting component includes a rectangular block 9 fixedly connected to the hook 8. A limiting block 10 is rotatably provided at the upper end of the rectangular block 9. A through groove is provided between the rectangular block 9 and the limiting block 10. A spring 11 is provided in the through groove, with both ends fixedly connected to the rectangular block 9 and the limiting block 10, for resetting the rotating limiting block 10. On the two side walls of the lower end of the connecting seat 7, there are symmetrically fixed partition blocks 12 for limiting the rotation of the limiting block 10. The lower end of the partition block 12 is provided with an inclined surface, and the inclined surface is in contact with the side wall of the limiting block 10. When loading goods, it is only necessary to push the limiting block 10 to one side to hang the goods on the hook 8. Then the limiting block 10 is pulled back by the spring 11 and restricted by the partition block 12 to achieve the anti-drop function.
[0028] like Figure 5 As shown, two sets of rectangular grooves are mirrored on both sides of the mobile platform 2. The rotating rod 16 is rotatably disposed in the rectangular groove and can only rotate in one direction within the rectangular groove. The anti-slip component also includes a fixing block 14 fixedly disposed at the upper end of the rectangular groove. A semi-circular ball 17 is fixed on the rotating rod 16. The semi-circular ball 17 is made of rubber material. A circular groove is provided at the lower end of the fixing block 14 to restrict the semi-circular ball 17. In use, the rotating rod 16 on one side is fixed to the fixing block 14 through the semi-circular ball 17, which can release the unilateral restriction and realize unidirectional movement. When moving, the rotating rod 16 continuously collides with the rectangular bar 15 and is squeezed and rotated. When slippage occurs, since the rotating rod 16 cannot rotate in the opposite direction, it is blocked by the rectangular bar 15, thereby achieving the purpose of preventing slippage.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] 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.
[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A crane anti-slip and anti-fall mechanism, comprising a slide rail (1) and a movable platform (2) disposed at the upper end, wherein the lower end of the movable platform (2) is rotatably connected to a movable wheel (13) that slides within a groove in the slide rail (1), characterized in that: The upper end of the mobile platform (2) is rotatably equipped with a crane body (3), and the lower end of the mobile platform (2) is fixedly equipped with a servo motor (6) that drives the crane body (3) to rotate. A power source (4) is fixed on one side wall of the crane body (3). A rope (5) is connected to one end of the upper part of the crane body (3), and a hook lock assembly is connected to the other end of the rope (5). Anti-slip components are symmetrically provided on both sides of the mobile platform (2). The hook and lock assembly includes a connecting seat (7) fixedly connected to the rope (5), and a hook (8) connected to the lower end of the connecting seat (7). The hook (8) is provided with a limiting component to prevent the goods from falling off. The anti-slip component includes rectangular bars (15) arranged in a linear array within the groove of the slide rail (1), and rotating rods (16) arranged on both sides of the moving platform (2) to cooperate with the rectangular bars (15).
2. The anti-slip and anti-fall mechanism for a crane according to claim 1, characterized in that: The limiting component includes a rectangular block (9) fixedly connected to the hook (8), a limiting block (10) rotatably provided at the upper end of the rectangular block (9), a through groove is provided between the rectangular block (9) and the limiting block (10), and a spring (11) is provided in the through groove with both ends fixedly connected to the rectangular block (9) and the limiting block (10). The lower end of the connecting seat (7) is symmetrically fixed with two side walls of the connecting seat (7) for limiting the rotation of the limiting block (10).
3. The anti-slip and anti-fall mechanism for a crane according to claim 2, characterized in that: The lower end of the partition block (12) is provided with an inclined surface, and the inclined surface is in contact with the side wall of the limiting block (10).
4. The anti-slip and anti-fall mechanism for a crane according to claim 1, characterized in that: The mobile platform (2) has two sets of rectangular grooves mirrored on both sides. The rotating rod (16) is rotatably installed in the rectangular groove. The anti-slip component also includes a fixing block (14) fixed on the upper end of the rectangular groove. A semi-circular ball (17) is fixed on the rotating rod (16), and a circular groove for restricting the semi-circular ball (17) is opened at the lower end of the fixing block (14).
5. A crane anti-slip and anti-fall mechanism according to claim 4, characterized in that: The hemispherical sphere (17) is made of rubber material.
6. The anti-slip and anti-fall mechanism for a crane according to claim 1, characterized in that: The movable wheel (13) has a groove of the same size as the rectangular bar (15).