Automatic homing lifting ring

Abstract

The utility model provides a kind of automatic homing lifting ring, belong to lifting ring technical field, including connecting block, the top of connecting block is fixedly connected with two fixed plates symmetrically, the top of fixed plate is fixedly connected with two mounting plates symmetrically, rotating block is rotatably connected between two mounting plates by limiting component, by setting the rotating connection structure and the rotating block of asymmetric design formed by limiting rod, circular hole, the automatic directional dumping and unhooking of lifting ring are realized using gravity center offset principle, such design makes lifting ring in unhooking instant can be automatically, rapidly and predictably dumped to heavier side (i.e. preset direction), to actively separate from lifting hook, avoid the problem that traditional lifting ring swings randomly due to force balance and needs manual intervention to unhook, significantly improve the certainty and efficiency of unhooking operation, such through ingenious mechanical design, ensure that lifting ring only tilts to one side when descending, to significantly improve the controllability, safety and efficiency of operation.

Description

Technical Field

[0001] This utility model belongs to the field of lifting ring technology, specifically relating to an automatic return lifting ring. Background Technology

[0002] In various lifting operations, lifting rings are a fundamental and crucial connecting component. Their core function is to establish a safe and reliable mechanical connection between the lifting equipment and the load or tooling being lifted. They are typically made of alloy steel with excellent mechanical properties, manufactured through processes such as forging and casting into closed or open ring structures to ensure extremely high tensile strength and fatigue life. Structurally, common lifting rings include D-rings, eye rings, and swivel rings, among others, to meet diverse connection and load-bearing requirements. In practical industrial applications, lifting rings are widely used, appearing in numerous scenarios such as the loading and unloading of large containers at port terminals, the installation of prefabricated components and steel beams at construction sites, the assembly and relocation of equipment in heavy machinery manufacturing workshops, the lifting of wind turbine blades and towers in the energy sector, and the transfer of large goods in logistics warehousing. The standard operating procedure is as follows: First, the top ring of the lifting sling is securely suspended from the hook of the crane or electric hoist. Then, using intermediate connectors such as shackles and wire rope slings, its bottom is firmly connected to the pre-set lifting point on the load, thus forming a complete force transmission chain. In this process, the design, selection, and proper use of the lifting sling directly affect the safety and stability of the entire lifting system, serving as the material basis for ensuring the load can be smoothly lifted, moved horizontally, and ultimately accurately positioned. Its load-bearing capacity, anti-rotation characteristics, and compatibility with the connected components are all key technical parameters that need to be considered in the initial design and safety assessment of lifting operations.

[0003] In lifting operations, after a heavy object is lifted, the unhooking operation of the lifting ring often faces the problem of the hook or ring swinging arbitrarily or unexpectedly deviating. Such swinging not only makes it difficult to position the heavy object and reduces docking accuracy, but may also cause accidental collisions between the lifting equipment and surrounding equipment and structures, increasing operational risks. Current operations mostly rely on human experience for intervention, which is unstable, inefficient, and poses safety hazards, especially in situations with limited space or complex environments. Utility Model Content

[0004] The purpose of this invention is to provide an automatic return lifting ring, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An automatic return lifting ring includes a connecting block, two fixing plates symmetrically fixedly connected to the top of the connecting block, two mounting plates symmetrically fixedly connected to the top of the fixing plates, a rotating block rotatably connected between the two mounting plates via a limiting component, and a lifting ring fixedly connected between the two rotating blocks.

[0006] As a preferred embodiment of this utility model, the mounting plate has limit holes, and the limit component includes limit rods inserted into two adjacent limit holes, with fixing pins inserted on the limit rods.

[0007] In a preferred embodiment of this utility model, the rotating block has a circular hole, and the rotating block is rotatably sleeved on the outside of the limiting rod through the circular hole.

[0008] As a preferred embodiment of this utility model, a baffle is fixedly connected between two adjacent mounting plates.

[0009] In a preferred embodiment of this utility model, the two rotating blocks are integrally formed with the lifting ring, and the distance between the bottom end face of the rotating block and the center of the circular hole is greater than the distance between the top end face of the rotating block and the center of the circular hole.

[0010] In a preferred embodiment of this utility model, the baffle is arranged perpendicularly to the rotating block, and the baffle is located on the right side of the rotating block.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up a rotating connection structure consisting of a limit rod and a circular hole, and an asymmetrically designed rotating block, the automatic directional tilting and unhooking of the lifting ring is achieved using the principle of center of gravity offset. Specifically, when the hook releases the tension on the lifting ring, because the distance from the bottom end (left side) of the rotating block to the center of the circular hole is greater than that from the top end (right side), the left end of the rotating block is heavier than the right end when it is in a horizontal state, forming a stable center of gravity offset. This design allows the lifting ring to automatically, quickly, and predictably tilt to the heavier side (i.e., the preset direction) at the moment of unhooking, thereby actively detaching from the hook. This avoids the problem of traditional lifting rings randomly swinging due to force balance and requiring manual intervention to unhook, significantly improving the certainty and efficiency of the unhooking operation. Through this ingenious mechanical design, it is ensured that the lifting ring only tilts to one side when descending, thus significantly improving the controllability, safety, and efficiency of the operation.

[0012] 2. By fixing a baffle structure perpendicular to the rotating block between the two mounting plates, the swing amplitude and direction of the lifting ring are effectively constrained as a physical limiter. This baffle is located on the right side of the rotating block (i.e., the non-working side). When the lifting ring tilts to the left and detaches from the hook under the influence of gravity, the rotating block contacts and is blocked by the baffle during its return swing, causing the lifting ring to eventually stabilize in a nearly horizontal, retracted position. This design fundamentally prevents the lifting ring from swinging uncontrollably or continuously oscillating to the other side or in other directions after detachment, eliminating the risk of accidental collisions between the lifting ring and surrounding equipment or structures, greatly improving the safety of the working environment, especially in complex working conditions with limited space. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the lifting ring of this utility model when it is being lifted. Figure 3 A schematic diagram of the structure of this utility model with a portion removed. Figure 1 ; Figure 4 A schematic diagram of the structure of this utility model with a portion removed. Figure 2 .

[0014] In the diagram: 10. Connecting block; 11. Fixing plate; 12. Mounting plate; 13. Lifting ring; 14. Limiting component; 141. Limiting rod; 142. Fixing pin; 15. Rotating block; 16. Baffle; 17. Limiting hole; 18. Round hole. Detailed Implementation

[0015] 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.

[0016] Example Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This embodiment of the present invention provides an automatic return lifting ring, including a connecting block 10, which can fix the object being lifted onto the connecting block 10. Two fixing plates 11 are symmetrically fixedly connected to the top of the connecting block 10, and two mounting plates 12 are symmetrically fixedly connected to the top of the fixing plates 11. A rotating block 15 is rotatably connected between the two mounting plates 12 through a limiting component 14, and a lifting ring 13 is fixedly connected between the two rotating blocks 15.

[0017] Reference Figure 2 , Figure 3 and Figure 4The mounting plate 12 has limit holes 17. The limiting assembly 14 includes a limiting rod 141 inserted into two adjacent limit holes 17. A fixing pin 142 is inserted into the limiting rod 141, which limits the limiting rod 141 and prevents it from detaching from the mounting plate 12. The rotating block 15 has a circular hole 18, through which it is rotatably sleeved on the outside of the limiting rod 141. A baffle 16 is fixedly connected between the two adjacent mounting plates 12. The baffle 16 acts as a physical limiter, effectively preventing the lifting ring 13 from moving to the other side (i.e., not working) when the rotating block 15 is in use (i.e., the rotating block 15 is in a horizontal state). The lateral swing design prevents interference with subsequent operations. The two rotating blocks 15 are integrally formed with the lifting ring 13. The distance between the bottom end face of the rotating block 15 and the center of the circular hole 18 is greater than the distance between the top end face of the rotating block 15 and the center of the circular hole 18, meaning the left end of the rotating block 15 is longer than the right end. The baffle 16 is vertically positioned between the rotating block 15 and the lifting ring 13. When the lifting ring 13 is in use, the rotating block 15 is in a horizontal state. At this time, because the left end of the rotating block 15 is longer, the left end of the rotating block 15 is heavier than the right end. Thus, when the hook of the lifting equipment is disengaged from the lifting ring 13, the lifting ring 13 will tilt to the heavier side, and the baffle 16 is located on the right side of the rotating block 15.

[0018] When the hoisting mechanism releases the wire rope during use, it will cause the hook connected to it to move downward. The downward movement of the hook will cause the lifting ring 13 to move downward. When the hoisted object contacts the ground, the connecting block 10, the fixing plate 11, the mounting plate 12, the rotating block 15 and the lifting ring 13 will no longer move downward, but will continue to cause the hook to move downward. The hook will then disengage from the lifting ring 13, releasing the tension on the lifting ring 13. At this time, since the weight of the left end of the horizontal rotating block 15 is greater than the weight of the right end, when the hook disengages from the lifting ring 13, the lifting ring 13 will tilt to the heavier left side of the rotating block 15 until the lifting ring 13 disengages from the hook. Due to the baffle 16, it acts as a physical limiter, effectively preventing the lifting ring 13 from swinging to the other side (i.e., the non-working side), thereby avoiding interference with subsequent operations. At the same time, the baffle 16 can block the rotating block 15 after it rotates to a near-horizontal state, thereby preventing the rotating block 15 from continuing to rotate, so that the lifting ring 13 is in a near-horizontal state after it is detached from the hook.

[0019] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An automatic return lifting ring, comprising a connecting block (10), characterized in that: The top of the connecting block (10) is symmetrically fixedly connected to two fixing plates (11), the top of the fixing plates (11) is symmetrically fixedly connected to two mounting plates (12), the two mounting plates (12) are rotatably connected to a rotating block (15) through a limiting component (14), and the two rotating blocks (15) are fixedly connected to a lifting ring (13).

2. The automatic return lifting ring according to claim 1, characterized in that: The mounting plate (12) has a limiting hole (17), and the limiting component (14) includes a limiting rod (141) inserted into two adjacent limiting holes (17), and a fixing pin (142) is inserted into the limiting rod (141).

3. The automatic return lifting ring according to claim 2, characterized in that: The rotating block (15) has a circular hole (18) and the rotating block (15) is rotatably sleeved on the outside of the limiting rod (141) through the circular hole (18).

4. The automatic return lifting ring according to claim 3, characterized in that: A baffle (16) is fixedly connected between two adjacent mounting plates (12).

5. The automatic return lifting ring according to claim 4, characterized in that: The two rotating blocks (15) and the lifting ring (13) are integrally formed. The distance between the bottom end face of the rotating block (15) and the center of the circular hole (18) is greater than the distance between the top end face of the rotating block (15) and the center of the circular hole (18).

6. The automatic return lifting ring according to claim 5, characterized in that: The baffle (16) is perpendicularly arranged between the baffle (16) and the rotating block (15), with the baffle (16) located to the right of the rotating block (15).

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