An adaptive spreader

Abstract

The utility model provides a kind of self-adapting spreader, it is related to spreader technical field, self-adapting spreader includes hoist seat, and the hoist seat is distributed around and is rotatably connected with the hoist seat multiple hanger rods, the end portion of each hanger rod is away from the hoist seat is provided with lifting hook, and the lifting hook is connected with the hanger rod by telescopic structure. By multiple hanger rods being distributed around hoist seat and being rotatably connected with hoist seat, so that each hanger rod can adapt to different size of hoisting object, and by the end portion of each hanger rod being away from hoist seat is provided with lifting hook, and lifting hook is connected with hanger rod by telescopic structure, telescopic structure can realize the fine adjustment of each lifting hook, so that the lifting hook on each hanger rod can adapt to different lifting point on hoisting object, to improve the use flexibility of spreader, to meet the demand of different shape, size of heavy object hoisting.

Description

Technical Field

[0001] This utility model relates to the field of lifting device technology, and more specifically, to an adaptive lifting device. Background Technology

[0002] Lifting gear refers to the device used in lifting machinery to lift heavy objects. Currently, when lifting heavy objects, different types of lifting gear are needed to meet the lifting requirements of heavy objects of different shapes and sizes due to factors such as the shape and size of the objects. Utility Model Content

[0003] The problem this invention addresses is: how to improve the flexibility of lifting equipment to meet the lifting needs of heavy objects of different shapes and sizes.

[0004] To address the aforementioned problems, this utility model provides an adaptive lifting device, comprising a lifting base and multiple lifting rods distributed around the lifting base and rotatably connected to the lifting base. Each lifting rod has a hook at its end away from the lifting base, and the hook is connected to the lifting rod via a telescopic structure.

[0005] Optionally, the telescopic structure includes a sleeve, an end cap, a slide rod, and a spring. The sleeve is connected to the boom, with the opening of the sleeve facing the hook. The end cap is installed at the opening. One end of the slide rod passes through the end cap and extends into the sleeve. The other end of the slide rod is connected to the hook. The spring is located inside the sleeve and is connected between the end cap and the slide rod.

[0006] Optionally, the slide bar is provided with a lubrication groove extending along its axial direction, and the lubrication groove is filled with grease.

[0007] Optionally, the adaptive lifting device further includes a locking structure, wherein the hook is provided with a first limiting hole, the lifting rod is provided with a second limiting hole, one end of the locking structure is connected to the first limiting hole, and the other end is connected to the second limiting hole.

[0008] Optionally, the locking structure includes a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod being threadedly connected, the end of the first connecting rod away from the second connecting rod being inserted into the first limiting hole, and the end of the second connecting rod away from the first connecting rod being inserted into the second limiting hole.

[0009] Optionally, the adaptive lifting device further includes a lifting ring, a core rod, and a connecting nut. The lifting ring has a through hole that extends radially through the lifting ring. One end of the core rod passes through the through hole and is connected to the connecting nut, while the other end of the core rod is connected to the lifting base.

[0010] Optionally, the adaptive lifting device further includes a damping assembly fitted onto the core rod and connected between the connecting nut and the lifting ring.

[0011] Optionally, the hook is provided with an anti-slip pad.

[0012] Optionally, the adaptive spreader further includes a limiting seat, multiple limiting rods, and multiple limiting clamps. The multiple limiting clamps are distributed around the limiting seat, and each limiting clamp corresponds to one of the limiting rods. Each limiting rod is detachably connected between the limiting seat and the corresponding limiting clamp. Each limiting clamp corresponds to one of the lifting rods, and each limiting clamp is fitted onto the corresponding lifting rod.

[0013] Optionally, the adaptive lifting device further includes a locking bolt and a locking wheel. The locking wheel is located at the rotatable connection between the lifting rod and the lifting base and rotates synchronously with the lifting rod. The locking wheel is provided with a limit hole, which passes through the locking wheel along the axial direction of the locking wheel. The locking bolt passes through the limit hole and is connected to the lifting base.

[0014] Compared with related technologies, the adaptive lifting device of this utility model uses multiple lifting rods distributed around the lifting base and rotatably connected to the lifting base. This allows the multiple lifting rods to close to different degrees to accommodate objects of different sizes. Each lifting rod has a hook at its end away from the lifting base, and the hook is connected to the lifting rod through a telescopic structure. The telescopic structure allows for fine adjustment of each hook, so that the hook on each lifting rod can adapt to different lifting points on the object, thereby improving the flexibility of the lifting device and meeting the needs of lifting heavy objects of different shapes and sizes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the adaptive lifting device in an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the telescopic structure in an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the extended telescopic structure in an embodiment of this utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1-Lifting base; 2-Lifting rod; 21-Second limiting hole; 3-Hook; 31-First limiting hole; 4-Telescopic structure; 41-Sleeve; 42-End cap; 43-Slide rod; 44-Spring; 5-Locking structure; 51-First connecting rod; 52-Second connecting rod; 6-Lifting ring; 7-Core rod; 8-Connecting nut; 9-Limiting seat; 10-Limiting rod; 11-Limiting clamp; 12-Locking bolt; 13-Locking wheel. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] In the attached diagram, the X-axis represents the horizontal position, with the positive direction of the X-axis (where the arrow points) indicating the right side and the negative direction (opposite to the positive direction) indicating the left side. Similarly, the Z-axis represents the vertical position, with the positive direction of the Z-axis (where the arrow points) indicating the top and the negative direction (opposite to the positive direction) indicating the bottom. It should be noted that the aforementioned representations of the X and Z axes are for ease of description and simplification only, and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0022] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in sequences other than those illustrated or described herein.

[0023] Combination Figure 1 and Figure 3 As shown, this utility model embodiment provides an adaptive lifting device, including a lifting base 1 and multiple lifting rods 2 distributed around the lifting base 1 and rotatably connected to the lifting base 1. Each lifting rod 2 is provided with a hook 3 at its end away from the lifting base 1, and the hook 3 is connected to the lifting rod 2 through a telescopic structure 4.

[0024] Specifically, the lifting base 1 can be a disc structure. The following embodiments use an adaptive lifting device comprising three lifting rods 2 as an example. Around the circumference of the lifting base 1, the three lifting rods 2 are equidistantly distributed. The upper end of each lifting rod 2 is rotatably connected to the lifting base 1. The specific means of rotational connection is not limited, as long as each lifting rod 2 can rotate up and down relative to the lifting base 1. A hook 3 is installed at the end of each lifting rod 2 furthest from the lifting base 11, i.e., at the lower end of each lifting rod 2. The hook 3 is connected to the corresponding lifting rod 2 via a telescopic structure 4, allowing each hook 3 to be finely adjusted relative to the lifting rod 2. Specifically, the adaptive lifting device in this embodiment of the present invention can at least satisfy the following conditions: when the three lifting points on the object (heavy object) are at the same height, the three lifting rods 2 are rotated and closed relative to the lifting base 1, and the three hooks 3 are connected to the three lifting points respectively; when the three lifting points on the object (heavy object) are at different heights, the three lifting rods 2 are still rotated and closed relative to the lifting base 1, and after closing, the three hooks 3 move relative to the lifting rods 2 through the telescopic structure 4 to connect to the lifting points at different heights respectively.

[0025] Therefore, in this embodiment, multiple lifting rods 2 are distributed around the lifting base 1 and rotatably connected to the lifting base 1, so that the multiple lifting rods 2 can be closed to different degrees to adapt to different sizes of objects to be lifted. Each lifting rod 2 is provided with a hook 3 at the end away from the lifting base 1, and the hook 3 is connected to the lifting rod 2 through a telescopic structure 4. The telescopic structure 4 can realize the fine adjustment of each hook 3, so that the hook 3 on each lifting rod 2 can adapt to different lifting points on the object to be lifted, thereby improving the flexibility of the lifting equipment and meeting the needs of lifting heavy objects of different shapes and sizes.

[0026] Optionally, combined Figure 2 and Figure 3 As shown, the telescopic structure 4 includes a sleeve 41, an end cap 42, a slide rod 43, and a spring 44. The sleeve 41 is connected to the lifting rod 2, and the opening of the sleeve 41 faces the hook 3. The end cap 42 is installed at the opening. One end of the slide rod 43 passes through the end cap 42 and extends into the sleeve 41. The other end of the slide rod 43 is connected to the hook 3. The spring 44 is located inside the sleeve 41 and is connected between the end cap 42 and the slide rod 43.

[0027] Specifically, the sleeve 41 and the end cap 42 are coaxial. The end cap 42 has a through hole at its axial position that communicates with the sleeve 41. The bottom of the sleeve 41 is connected to the lifting rod 2, and the opening of the sleeve 41 faces downwards towards the hook 3. The end cap 42 is located at the opening and is threadedly connected to the sleeve 41. One end of the sliding rod 43 passes through the end cap 42 and extends into the sleeve 41, while the other end of the sliding rod 43 is connected to the hook 3. The spring 44 is located inside the sleeve 41 and is connected between the end cap 42 and the sliding rod 43. As described above, when the three lifting rods 2 are closed, the hook 3 can be manually pulled. The hook 3, through the sliding rod 43, compresses or stretches the spring 44, connecting the hook 3 to the lifting point on the load. After use, the elasticity of the spring 44 can drive the hook 3 to return to its original position. Furthermore, when the three lifting points on the object are at different heights, the lifting point with the relatively higher position can be connected to the corresponding hook 3 first, and then the remaining two hooks 3 can be pulled down to connect with the two lifting points with the relatively lower position.

[0028] Thus, the sleeve 41 is connected to the boom 2, enabling the sleeve 41 and boom 2 to move together. One end of the slide rod 43 passes through the end cap 42 installed at the opening of the sleeve 41 and extends into the sleeve 41. The other end of the slide rod 43 is connected to the hook 3. The spring 44 located inside the sleeve 41 is connected between the end cap 42 and the slide rod 43, so that each hook 3 can move relative to the boom 2 through the slide rod 43 and the spring 44 to adjust the position of each hook 3. After use, the spring force of the spring 44 can be used to reset the hook 3 for the next use.

[0029] Optionally, the slide bar 43 is provided with a lubrication groove extending along its axial direction, and the lubrication groove is filled with grease.

[0030] Specifically, the lubrication groove extends along the axial direction of the slide rod 43 and is filled with grease to achieve lubrication between the slide rod 43 and the end cover 42, thereby reducing the friction between the slide rod 43 and the end cover 42.

[0031] Thus, by utilizing the lubrication groove that extends axially on the slide bar 43 and fills the lubrication groove with grease, the grease can reduce the friction between the slide bar 43 and the end cap 42, thereby improving ease of use.

[0032] Optionally, combined Figure 3 As shown, the adaptive lifting device also includes a locking structure 5. The hook 3 is provided with a first limiting hole 31, and the lifting rod 2 is provided with a second limiting hole 21. One end of the locking structure 5 is connected to the first limiting hole 31, and the other end is connected to the second limiting hole 21.

[0033] Specifically, after the hook 3 is connected to the corresponding lifting point on the object being lifted, the locking structure 5 is connected between the first limiting hole 31 and the second limiting hole 21 to restrict the movement of the hook 3 relative to the lifting rod 2 during the lifting process.

[0034] Thus, by connecting one end of the locking structure 5 to the first limiting hole 31 and the other end to the second limiting hole 21, the locking structure 5 can restrict the movement of the hook 3 relative to the lifting rod 2 during the lifting process, so as to avoid the spring 44 from disengaging during the lifting process, thereby improving the stability of the adaptive lifting device.

[0035] Optionally, combined Figure 1 As shown, the adaptive lifting device also includes a lifting ring 6, a core rod 7, and a connecting nut 8. The lifting ring 6 is provided with a through hole that passes through the lifting ring 6 radially. One end of the core rod 7 passes through the through hole and is connected to the connecting nut 8, while the other end of the core rod 7 is connected to the lifting base 1.

[0036] Specifically, the lifting ring 6 is located above the lifting base 1. A through hole is provided at the bottom of the lifting ring 6, extending radially (vertically) through it. The core rod 7 is vertical and located between the lifting ring 6 and the lifting base 1. The upper end of the core rod 7 passes through the through hole and connects to the connecting nut 8. The lower end of the core rod 7 can also be connected to the lifting base 1 via a nut. Vertically, the lifting base 1 is located between the hook 3 and the lifting ring 6. During lifting, the lifting ring 6 can be connected to the wire rope of the lifting equipment. As the lifting equipment gradually retracts the wire rope, the lifting ring 6 moves upward along the core rod 7. After the lifting ring 6 abuts against the connecting nut 8, the core rod 7 is in a vertical state, ensuring the self-adaptive lifting device is vertical. This ensures that the center of gravity of the self-adaptive lifting device and the center of gravity of the lifted load are both in the vertical direction, guaranteeing stability during subsequent lifting operations.

[0037] Optionally, the adaptive spreader also includes a damping assembly that is fitted onto the core rod 7 and connected between the connecting nut 8 and the lifting ring 6.

[0038] Specifically, there are no specific requirements for the structure of the damping components, as long as they meet the vibration reduction requirements.

[0039] Thus, by fitting the damping component onto the core rod 7 and connecting it between the connecting nut 8 and the lifting ring 6, the damping component can reduce the mechanical vibration of the lifting equipment during operation, thereby preventing the hook from disengaging due to the mechanical vibration of the lifting equipment and ensuring the stability of the adaptive lifting device during use.

[0040] Optionally, the hook 3 is provided with an anti-slip pad.

[0041] Specifically, the anti-slip mat can be made of rubber. This improves the anti-slip effect of the lifting mechanism 3 and prevents it from coming off the hook.

[0042] Optionally, combined Figure 1As shown, the adaptive spreader also includes a limit seat 9, multiple limit rods 10 and multiple limit clamps 11. The multiple limit clamps 11 are distributed around the limit seat 9. Each limit clamp 11 corresponds to a limit rod 10. Each limit rod 10 is detachably connected between the limit seat 9 and the corresponding limit clamp 11. Each limit clamp 11 corresponds to a lifting rod 2. Each limit clamp 11 is fitted onto the corresponding lifting rod 2.

[0043] Specifically, the limiting seat 9 is located below the lifting seat 1, and three limiting clamps 11 are respectively fitted onto the three lifting rods 2. After the three hooks 3 are connected to the three lifting points of the load, the relative positions of the three lifting rods 2 are fixed. Then, one end of each limiting rod 10 can be threaded to the limiting seat 9, and the other end of the limiting rod 10 can be connected to the corresponding limiting clamp 11. With the support of the limiting seat 9, the three limiting rods 10 limit the movement of the three limiting clamps 11, thereby restricting the movement of the three lifting rods 2. When lifting is not required, the limiting rods 10 can be removed from the limiting clamps 11. Furthermore, when the closing degree of the three lifting rods 2 is different, each limiting rod 10 can adapt to the closing degree of the three lifting rods 2 through the threaded connection between it and the limiting seat 9. That is, by rotating the limiting rod 10, the length of the limiting rod 10 screwed into the limiting seat 9 can be adjusted to adapt to the closing degree of the three lifting rods 2.

[0044] Thus, by having multiple limiting clamps 11 surround the limiting seat 9, with each limiting clamp 11 corresponding to a limiting rod 10, and each limiting clamp 11 being installed on the limiting seat 9 via the limiting rod 10, and corresponding to the lifting rod 2 via the limiting clamp 11, each limiting clamp 11 is fitted onto the corresponding lifting rod 2, and each limiting rod 10 is threadedly connected to the limiting seat 9. During lifting, the multiple limiting rods 10 can restrict the relative position of the multiple lifting rods 2, that is, to prevent the multiple lifting rods 2 from moving away from each other during the lifting process, thereby avoiding the risk of disengagement.

[0045] Optionally, combined Figure 1 As shown, the adaptive lifting device also includes a locking bolt 12 and a locking wheel 13. The locking wheel 13 is located at the rotatable connection between the lifting rod 2 and the lifting base 1 and rotates synchronously with the lifting rod 2. A limit hole is provided on the locking wheel 13. The limit hole passes through the locking wheel 13 along the axial direction of the locking wheel 13. The locking bolt 12 passes through the limit hole and is connected to the lifting base 1.

[0046] Specifically, each boom 2 has a rotating shaft at its upper end. The boom 2 is rotatably connected to the support 1 through the rotating shaft, and a locking wheel 13 can be mounted on the rotating shaft. At this time, the locking wheel 13 can be provided with limit holes. Multiple limit holes are distributed around the circumference of the locking wheel 13. When the position of the boom 2 meets the lifting requirements, the locking bolt 12 passes through one of the limit holes and connects to the support 1 to restrict the rotation of the locking wheel 13, thereby restricting the rotation of the boom 2 relative to the support 1.

[0047] Thus, by utilizing the locking wheel 13 located at the rotatable connection between the boom 2 and the base 1, and rotating synchronously with the boom 2, the rotation of the boom 2 can be converted into the rotation of the locking wheel 13. After the locking wheel 13 is axially penetrated by the limiting hole provided on the locking wheel 13, and the locking bolt 12 passes through the limiting hole and is connected to the base 1, the locking bolt 12 can limit the rotation of the boom 2 by limiting the rotation of the locking wheel 13, thereby improving the stability of the boom 2 during lifting.

[0048] Optionally, combined Figure 3 As shown, the locking structure 5 includes a first connecting rod 51 and a second connecting rod 52. The first connecting rod 51 and the second connecting rod 52 are threaded together. The end of the first connecting rod 51 away from the second connecting rod 52 is inserted into the first limiting hole 31, and the end of the second connecting rod 52 away from the first connecting rod 51 is inserted into the second limiting hole 21.

[0049] Specifically, the first connecting rod 51 and the second connecting rod 52 are similar in shape, both being L-shaped rods. Each L-shaped rod includes a longer first segment and a shorter second segment, which are perpendicularly connected. The two first segments of the two L-shaped rods are connected by threads; for example, one first segment has an internal thread, and the other has an external thread, allowing for a threaded connection. After the two first segments are adjusted to a suitable distance via the threaded connection, the two second segments are then inserted into the first limiting hole 31 and the second limiting hole 21, respectively, to limit the movement of the lifting mechanism 3 relative to the lifting rod 2 during lifting.

[0050] Thus, by threading the first connecting rod 51 and the second connecting rod 52 together, the distance between the first connecting rod 51 and the second connecting rod 52 can be adjusted so that the distance between the two second segments matches the distance between the first limiting hole 31 and the second limiting hole 21, thereby adapting to the adjustment of the position of the lifting mechanism 3. Furthermore, after the end of the first connecting rod 51 away from the second connecting rod 52 is inserted into the first limiting hole 31, and the end of the second connecting rod 52 away from the first connecting rod 51 is inserted into the second limiting hole 21, the stability of the hook 3 during use can be improved.

[0051] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. An adaptive lifting device, characterized in that, It includes a hanging base (1) and multiple hanging rods (2) distributed around the hanging base (1) and rotatably connected to the hanging base (1). Each hanging rod (2) has a hook (3) at its end away from the hanging base (1). The hook (3) is connected to the hanging rod (2) through a telescopic structure (4).

2. The adaptive lifting device according to claim 1, characterized in that, The telescopic structure (4) includes a sleeve (41), an end cap (42), a slide rod (43), and a spring (44). The sleeve (41) is connected to the boom (2), and the opening of the sleeve (41) faces the hook (3). The end cap (42) is installed at the opening. One end of the slide rod (43) passes through the end cap (42) and extends into the sleeve (41). The other end of the slide rod (43) is connected to the hook (3). The spring (44) is located inside the sleeve (41) and is connected between the end cap (42) and the slide rod (43).

3. The adaptive lifting device according to claim 2, characterized in that, The slide bar (43) is provided with a lubrication groove extending along its axial direction, and the lubrication groove is filled with grease.

4. The adaptive lifting device according to claim 1, characterized in that, It also includes a locking structure (5), the hook (3) is provided with a first limiting hole (31), the rod (2) is provided with a second limiting hole (21), one end of the locking structure (5) is connected to the first limiting hole (31), and the other end is connected to the second limiting hole (21).

5. The adaptive lifting device according to claim 4, characterized in that, The locking structure (5) includes a first connecting rod (51) and a second connecting rod (52). The first connecting rod (51) and the second connecting rod (52) are threaded together. The end of the first connecting rod (51) away from the second connecting rod (52) is inserted into the first limiting hole (31), and the end of the second connecting rod (52) away from the first connecting rod (51) is inserted into the second limiting hole (21).

6. The adaptive lifting device according to claim 1, characterized in that, It also includes a lifting ring (6), a core rod (7) and a connecting nut (8). The lifting ring (6) has a through hole that passes through the lifting ring (6) radially. One end of the core rod (7) passes through the through hole and is connected to the connecting nut (8). The other end of the core rod (7) is connected to the lifting base (1).

7. The adaptive lifting device according to claim 6, characterized in that, It also includes a damping assembly, which is fitted onto the core rod (7) and connected between the connecting nut (8) and the lifting ring (6).

8. The adaptive lifting device according to claim 1, characterized in that, The hook (3) is equipped with an anti-slip pad.

9. The adaptive lifting device according to claim 1, characterized in that, It also includes a limiting seat (9), multiple limiting rods (10) and multiple limiting clamps (11). The multiple limiting clamps (11) are distributed around the limiting seat (9). The limiting clamps (11) correspond one-to-one with the limiting rods (10). Each limiting rod (10) is detachably connected between the limiting seat (9) and the corresponding limiting clamp (11). The limiting clamps (11) correspond one-to-one with the lifting rods (2). Each limiting clamp (11) is fitted onto the corresponding lifting rod (2).

10. The adaptive lifting device according to any one of claims 1-9, characterized in that, It also includes a locking bolt (12) and a locking wheel (13). The locking wheel (13) is located at the rotatable connection between the boom (2) and the base (1) and rotates synchronously with the boom (2). The locking wheel (13) is provided with a limit hole. The limit hole passes through the locking wheel (13) along the axial direction of the locking wheel (13). The locking bolt (12) passes through the limit hole and is connected to the base (1).

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