An automatic locking lifting device for chassis hoisting
Patent Information
- Application Number
- CN202522453040.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-19
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-11-19
AI Technical Summary
目前行业内常用的底盘吊具为固定式吊钩结构或手动锁紧式吊具，这类吊具在使用过程中，需人工调整吊钩位置以对准底盘吊点，部分还需通过螺栓、卡扣部件手动完成锁紧操作，然而，由于工程机械底盘重量大、体积大，手动锁紧不仅操作繁琐、耗费人力，还易因人工操作误差导致锁紧不牢固，在吊运过程中受振动、受力不均的因素影响，底盘容易出现松动甚至脱落，存在严重安全隐患
本实用新型中，自然状态下，该吊具的第一锁紧组件和第二锁紧组件中的第一吊钩、第二吊钩呈敞开状态，外部起吊设备挂钩连接吊运组件的三角板上的吊孔后，向上牵引吊梁，吊梁带动第一锁紧组件和第二锁紧组件中的第一连接杆、第二连接杆绕上部转轴转动，第三连接杆、第四连接杆下部在安装架的第二活动孔内活动传力，第一连接杆、第二连接杆下部在第一活动孔内滑动，同时带动第一滑块、第二滑块分别在第三活动孔、第五活动孔内滑动，进而驱动第一吊钩、第二吊钩在上部的第四活动孔内转动并向内侧合拢，实现对底盘的自动锁紧，底盘转运至目标位置下放后，吊梁牵引力减小，第一连接杆、第二连接杆、第三连接杆、第四连接杆复位，第一滑块、第二滑块带动第一吊钩、第二吊钩恢复敞开状态，解除对底盘的锁紧，完成吊运。
Smart Images
Figure CN224768302U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering machinery production technology, and in particular to an automatic locking lifting device for chassis hoisting. Background Technology
[0002] In the manufacturing of construction machinery, the chassis, as a core load-bearing component, needs to be frequently lifted and moved. For example, chassis transfer between different processes in the workshop, chassis stacking during storage, and chassis installation at the construction site all rely on lifting equipment to achieve safe movement of the chassis. Currently, the commonly used chassis lifting devices in the industry are fixed hook structures or manually locking lifting devices. During use, these devices require manual adjustment of the hook position to align with the chassis lifting points, and some also require manual locking using bolts and clips. However, due to the large weight and size of construction machinery chassis, manual locking is not only cumbersome and labor-intensive, but also prone to insecure locking due to human error. During lifting, vibration and uneven stress can cause the chassis to loosen or even detach, posing a serious safety hazard. Therefore, we have introduced an automatic locking lifting device for chassis lifting. Utility Model Content
[0003] The main objective of this invention is to provide an automatic locking lifting device for chassis hoisting, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An automatic locking lifting device for chassis lifting includes: a mounting frame and a lifting assembly; The mounting bracket includes a frame, a mounting plate, a first movable hole, a second movable hole, a third movable hole, a fourth movable hole, and a fifth movable hole; The hoisting assembly includes a hoisting beam, a triangular plate, a hoisting hole, a first locking assembly, and a second locking assembly; The first locking assembly includes a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a first slider, a second slider, a first hook, and a second hook.
[0005] Preferably, two mounting plates are provided, and the inner sides of the two mounting plates are respectively fixedly connected to the front end and rear end of the frame. Four first movable holes, four second movable holes, four third movable holes, four fourth movable holes, and four fifth movable holes are provided. The four first movable holes are respectively opened on the upper left and upper right of the corresponding mounting plate, the four second movable holes are respectively opened on the upper middle of the corresponding mounting plate, the four third movable holes are respectively opened on the outer left and outer right of the corresponding mounting plate, the four fifth movable holes are respectively opened on the inner left and inner right of the corresponding mounting plate, and the four fourth movable holes are respectively opened on the lower left and lower right of the corresponding mounting plate.
[0006] By adopting the above technical solution, two mounting plates are stably connected to the frame to form the main body of the mounting frame, and the four first movable holes, second movable holes, third movable holes, fourth movable holes and fifth movable holes are distributed at specific positions on the mounting plates, providing a positional basis for the installation and movement of each component of the hoisting assembly, and ensuring the orderly assembly of the hoisting structure.
[0007] Preferably, the four first movable holes, the four second movable holes, the four third movable holes, the four fourth movable holes, and the four fifth movable holes respectively pass through into the corresponding mounting plate.
[0008] By adopting the above technical solution, the first movable hole, the second movable hole, the third movable hole, the fourth movable hole, and the fifth movable hole are ensured to have penetration, which can meet the needs of the hoisting components for insertion and movement.
[0009] Preferably, the lower end of the triangular plate is fixedly connected to the upper end of the lifting beam, and a plurality of lifting holes are provided, all of which are opened at the right end of the triangular plate and pass through to the left end of the triangular plate. The upper part of the first locking component is movably connected to the front part of the lifting beam via a rotating shaft, and the upper part of the second locking component is movably connected to the rear part of the lifting beam via a rotating shaft. The first locking component and the second locking component have the same structure and are symmetrically distributed front and back.
[0010] By adopting the above technical solution, the first locking component and the second locking component are symmetrically distributed at the front and rear of the lifting beam, ensuring that the lifting device is subjected to balanced force during lifting and improving the stability of the chassis during lifting.
[0011] Preferably, there are two of each of the first connecting rod, the second connecting rod, the first slider, and the second slider. The upper parts of the two first connecting rods and the two second connecting rods are movably mounted on the front of the lifting beam via a pivot. The upper part of the third connecting rod is movably mounted on the middle position between the two first connecting rods via a pivot. The upper part of the fourth connecting rod is movably mounted on the middle position between the two second connecting rods via a pivot. The two first sliders are movably mounted on the lower outer side of the two first connecting rods via pivots. The two second sliders are movably mounted on the lower outer side of the two second connecting rods via pivots. The upper part of the first hook is movably mounted on the lower position between the two first connecting rods via a pivot, and the upper part of the first hook is movably mounted on the two first sliders via a pivot. The upper part of the second hook is movably mounted on the lower position between the two second connecting rods via a pivot, and the upper part of the second hook is movably mounted on the two second sliders via a pivot.
[0012] By adopting the above technical solution, the two first connecting rods, two second connecting rods, a third connecting rod, a fourth connecting rod, two first sliders, two second sliders, and the first hook and second hook are connected in an orderly manner through a rotating shaft, providing structural support for the lifting device to achieve automatic locking and unlocking functions.
[0013] Preferably, the lower parts of the third connecting rod and the lower parts of the fourth connecting rod are movably installed in the corresponding second movable holes via rotating shafts; The lower parts of the two first connecting rods and the lower parts of the two second connecting rods are respectively movably sleeved in the corresponding first movable holes; The middle parts of the first slider on the front side and the middle parts of the second slider on the front side are respectively movably sleeved in the corresponding third movable hole, and the middle parts of the first slider on the rear side and the middle parts of the second slider on the rear side are respectively movably sleeved in the corresponding fifth movable hole. The upper part of the first hook and the upper part of the second hook are respectively movably fitted into the corresponding fourth movable hole.
[0014] By adopting the above technical solution, the third connecting rod, the fourth connecting rod, the first connecting rod, the second connecting rod, the first slider, the second slider, the first hook, and the second hook are respectively installed in conjunction with the corresponding movable holes, limiting the movement trajectory of each component, ensuring that each component can move together according to the preset path during lifting, realizing the locking of the first hook and the second hook to the chassis, and smoothly resetting and unlocking during lowering.
[0015] Compared with the prior art, the present invention has the following beneficial effects: In this invention, in its natural state, the first hook and second hook of the first and second locking assemblies of the lifting device are in an open state. After the hook of the external lifting equipment is connected to the lifting hole on the triangular plate of the lifting assembly, the lifting beam is pulled upward. The lifting beam drives the first connecting rod and second connecting rod of the first and second locking assemblies to rotate around the upper pivot. The lower parts of the third and fourth connecting rods move and transmit force in the second movable hole of the mounting frame. The lower parts of the first and second connecting rods slide in the first movable hole, and at the same time drive the first slider and second slider to slide in the third movable hole and fifth movable hole respectively. This drives the first hook and second hook to rotate in the upper fourth movable hole and close inward, realizing automatic locking of the chassis. After the chassis is transferred to the target position and lowered, the traction force of the lifting beam decreases, the first connecting rod, second connecting rod, third connecting rod and fourth connecting rod reset, and the first slider and second slider drive the first hook and second hook to return to the open state, releasing the locking of the chassis and completing the lifting. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of an automatic locking lifting device for chassis hoisting according to the present invention; Figure 2 This is a schematic diagram of the mounting frame for an automatic locking lifting device used for chassis hoisting according to the present invention; Figure 3 This is a bottom view of the structure of the mounting frame for an automatic locking lifting device used for chassis hoisting according to the present invention; Figure 4 This is a structural schematic diagram of a lifting assembly for an automatic locking lifting device used for chassis lifting according to this utility model; Figure 5 This is a schematic diagram of the structure of the first locking component of an automatic locking lifting device for chassis hoisting according to the present invention; Figure 6 This utility model relates to an automatic locking lifting device for chassis hoisting. Figure 5 Enlarged view of the structure at point A in the image.
[0017] In the diagram: 1. Mounting frame; 2. Lifting assembly; 11. Frame; 12. Mounting plate; 13. First movable hole; 14. Second movable hole; 15. Third movable hole; 16. Fourth movable hole; 17. Fifth movable hole; 21. Lifting beam; 22. Triangular plate; 23. Lifting hole; 24. First locking assembly; 25. Second locking assembly; 241. First connecting rod; 242. Second connecting rod; 243. Third connecting rod; 244. Fourth connecting rod; 245. First slider; 246. Second slider; 247. First hook; 248. Second hook. Detailed Implementation
[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] Please see Figure 1-6 This utility model provides a technical solution: An automatic locking lifting device for chassis lifting includes: a mounting frame 1 and a lifting assembly 2; Mounting bracket 1 includes frame 11, mounting plate 12, first movable hole 13, second movable hole 14, third movable hole 15, fourth movable hole 16 and fifth movable hole 17; The hoisting assembly 2 includes a hoisting beam 21, a triangular plate 22, a hoisting hole 23, a first locking assembly 24, and a second locking assembly 25; The first locking assembly 24 includes a first connecting rod 241, a second connecting rod 242, a third connecting rod 243, a fourth connecting rod 244, a first slider 245, a second slider 246, a first hook 247, and a second hook 248.
[0022] In this embodiment, two mounting plates 12 are provided. The inner sides of the two mounting plates 12 are respectively fixedly connected to the front end and rear end of the frame 11. Four first movable holes 13, four second movable holes 14, four third movable holes 15, four fourth movable holes 16, and four fifth movable holes 17 are provided. The four first movable holes 13 are respectively located on the upper left and upper right sides of the corresponding mounting plate 12. The four second movable holes 14 are respectively located on the upper middle part of the corresponding mounting plate 12. The four third movable holes 15 are respectively located on the outer left and outer right sides of the corresponding mounting plate 12. The four fifth movable holes 17 are respectively located on the inner left and inner right sides of the corresponding mounting plate 12. The four fourth movable holes 16 are respectively located on the upper left and upper right sides of the corresponding mounting plate 12. Four first movable holes 13, four second movable holes 14, four third movable holes 15, four fourth movable holes 16, and four fifth movable holes 17 are respectively opened on the lower left and lower right parts of the corresponding mounting plate 12 and pass through the corresponding mounting plate 12; the lower end of the triangular plate 22 is fixedly connected to the upper end of the lifting beam 21, and several lifting holes 23 are provided, all of which are opened on the right end of the triangular plate 22 and all pass through the left end of the triangular plate 22; the upper part of the first locking component 24 is movably connected to the front part of the lifting beam 21 through a rotating shaft, and the upper part of the second locking component 25 is movably connected to the rear part of the lifting beam 21 through a rotating shaft; the first locking component 24 and the second locking component 25 have the same structure and are arranged in a front-to-back configuration. The distribution is as follows: Two of each of the following components are provided: first connecting rod 241, second connecting rod 242, first slider 245, and second slider 246. The upper parts of the two first connecting rods 241 and the two second connecting rods 242 are movably mounted on the front of the lifting beam 21 via a pivot. The upper part of the third connecting rod 243 is movably mounted on the middle position between the two first connecting rods 241 via a pivot. The upper part of the fourth connecting rod 244 is movably mounted on the middle position between the two second connecting rods 242 via a pivot. The two first sliders 245 are movably mounted on the lower outer side of the two first connecting rods 241 via pivots, and the two second sliders 246 are movably mounted on the outer side of the two second connecting rods 242 via pivots. On the lower side, the upper part of the first hook 247 is movably mounted between the two first connecting rods 241 via a pivot, and the upper part of the first hook 247 is movably mounted between the two first sliders 245 via a pivot. The upper part of the second hook 248 is movably mounted between the two second connecting rods 242 via a pivot, and the upper part of the second hook 248 is movably mounted between the two second sliders 246 via a pivot. The lower parts of the third connecting rod 243 and the lower parts of the fourth connecting rod 244 are movably mounted in the corresponding second movable holes 14 via pivots. The lower parts of the two first connecting rods 241 and the lower parts of the two second connecting rods 242 are movably sleeved in the corresponding first movable holes 13.The middle portions of the first front slider 245 and the second front slider 246 are respectively movably fitted into the corresponding third movable holes 15; the middle portions of the first rear slider 245 and the second rear slider 246 are respectively movably fitted into the corresponding fifth movable holes 17; the upper portions of the first hook 247 and the upper portions of the second hook 248 are respectively movably fitted into the corresponding fourth movable holes 16.
[0023] It should be noted that this utility model is an automatic locking lifting device for chassis hoisting. In use, the first hook 247 and the second hook 248 of the first locking assembly 24 and the second locking assembly 25 are in an open state in their natural state. First, the hook of the external lifting equipment is connected to the lifting hole 23 on the triangular plate 22 of the lifting assembly 2. The moving mounting frame 1 causes the frame 11 to drive the two mounting plates 12 to be correspondingly fitted onto the outside of the chassis to be hoisted, so that the first hook 247 and the second hook 248 respectively fit against the preset lifting points on both sides of the chassis. The lifting equipment is started to pull the lifting beam 21 upward. The lifting beam 21 drives the two first connecting rods 241 and the two second connecting rods 242 to rotate around the upper pivot. The lower parts of the third connecting rod 243 and the fourth connecting rod 244 move in the corresponding second movable hole 14 and transmit the force. The two first connecting rods 241 and the two second connecting rods 242 rotate around the upper pivot. The lower parts of the two connecting rods 242 slide in the corresponding first movable holes 13, respectively, while simultaneously driving the first slider 245 and the second slider 246 on the front side to slide in the corresponding third movable holes 15, and the first slider 245 and the second slider 246 on the rear side to slide in the corresponding fifth movable holes 17. This, in turn, drives the upper parts of the first hook 247 and the second hook 248 to rotate in the corresponding fourth movable holes 16 and close inward, firmly locking the chassis. After the lifting equipment moves the lifting device and the chassis to the target position, it slowly lowers the lifting device so that the chassis contacts the placement platform. The traction force on the lifting beam 21 decreases, and the first connecting rod 241, the second connecting rod 242, the third connecting rod 243, and the fourth connecting rod 244 reset. The slider drives the first hook 247 and the second hook 248 to return to the open state, releasing the locking of the chassis and completing the lifting operation.
[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An automatic locking lifting device for chassis hoisting, characterized in that, include: Mounting frame (1) and hoisting assembly (2); The mounting bracket (1) includes a frame (11), a mounting plate (12), a first movable hole (13), a second movable hole (14), a third movable hole (15), a fourth movable hole (16), and a fifth movable hole (17). The hoisting assembly (2) includes a hoisting beam (21), a triangular plate (22), a hoisting hole (23), a first locking assembly (24), and a second locking assembly (25); The first locking assembly (24) includes a first connecting rod (241), a second connecting rod (242), a third connecting rod (243), a fourth connecting rod (244), a first slider (245), a second slider (246), a first hook (247), and a second hook (248).
2. An automatic locking spreader for lifting loads from a pallet according to claim 1, characterized in that There are two mounting plates (12). The inner sides of the two mounting plates (12) are fixedly connected to the front end and rear end of the frame (11) respectively. There are four first movable holes (13), four second movable holes (14), four third movable holes (15), four fourth movable holes (16) and four fifth movable holes (17). The four first movable holes (13) are respectively opened on the upper left and upper right of the corresponding mounting plate (12). The four second movable holes (14) are respectively opened on the upper middle of the corresponding mounting plate (12). The four third movable holes (15) are respectively opened on the outer left and outer right of the corresponding mounting plate (12). The four fifth movable holes (17) are respectively opened on the inner left and inner right of the corresponding mounting plate (12). The four fourth movable holes (16) are respectively opened on the lower left and lower right of the corresponding mounting plate (12).
3. An automatic locking spreader for lifting loads from a pallet according to claim 1, characterized in that, The four first movable holes (13), the four second movable holes (14), the four third movable holes (15), the four fourth movable holes (16) and the four fifth movable holes (17) respectively pass through into the corresponding mounting plate (12).
4. An automatic locking spreader for lifting loads from a pallet according to claim 1, characterized in that, The lower end of the triangular plate (22) is fixedly connected to the upper end of the lifting beam (21). Several lifting holes (23) are provided. Several lifting holes (23) are opened at the right end of the triangular plate (22) and pass through to the left end of the triangular plate (22). The upper part of the first locking component (24) is movably connected to the front part of the lifting beam (21) through a rotating shaft. The upper part of the second locking component (25) is movably connected to the rear part of the lifting beam (21) through a rotating shaft. The first locking component (24) and the second locking component (25) have the same structure and are symmetrically distributed front and back.
5. An automatic locking lifting device for chassis hoisting according to claim 1, characterized in that, Two of each of the first connecting rod (241), the second connecting rod (242), the first slider (245), and the second slider (246) are provided. The upper parts of the two first connecting rods (241) and the upper parts of the two second connecting rods (242) are movably mounted on the front of the lifting beam (21) via a pivot. The upper part of the third connecting rod (243) is movably mounted on the middle position between the two first connecting rods (241) via a pivot. The upper part of the fourth connecting rod (244) is movably mounted on the middle position between the two second connecting rods (242) via a pivot. The two first sliders (245) are movably mounted on the two connecting rods (241 and 246) respectively via pivots. The lower outer side of the first connecting rod (241) is provided with two second sliders (246) which are movably mounted on the lower outer side of the two second connecting rods (242) via a pivot. The upper part of the first hook (247) is movably mounted on the lower part between the two first connecting rods (241) via a pivot, and the upper part of the first hook (247) is movably mounted on the lower part between the two first sliders (245) via a pivot. The upper part of the second hook (248) is movably mounted on the lower part between the two second connecting rods (242) via a pivot, and the upper part of the second hook (248) is movably mounted on the lower part between the two second sliders (246) via a pivot.
6. An automatic locking spreader for lifting loads from a pallet according to claim 1, characterized in that, The lower parts of the third connecting rod (243) and the lower parts of the fourth connecting rod (244) are respectively movably installed in the corresponding second movable holes (14) via rotating shafts; The lower parts of the two first connecting rods (241) and the lower parts of the two second connecting rods (242) are respectively movably sleeved in the corresponding first movable holes (13); The middle part of the first slider (245) on the front side and the middle part of the second slider (246) on the front side are respectively movably sleeved in the corresponding third movable hole (15), and the middle part of the first slider (245) on the rear side and the middle part of the second slider (246) on the rear side are respectively movably sleeved in the corresponding fifth movable hole (17). The upper part of the first hook (247) and the upper part of the second hook (248) are respectively movably sleeved in the corresponding fourth movable hole (16).