Sling stabilizing device for crane
By designing a sling stabilization device and utilizing a combination of fixed and connecting components, the problem of wire rope wear was solved, thereby improving the stability and safety of the hoisting process and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENJIANG PORT GRP CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-24
AI Technical Summary
In existing technologies, the wire rope and adjustment mechanism of slings are prone to wear during long-term locking and lifting processes, resulting in reduced service life and increased maintenance costs.
The design incorporates slings, fixing components, connecting components, and linking components. After the item is secured by the fixing ring, the connection tubes and linking tubes are used to prevent the wire rope from getting tangled. Elastic rings reduce friction, and positioning pins and bolts fix the position, making it suitable for different item volumes.
It effectively avoids wire rope entanglement, reduces wear, extends service life, lowers maintenance costs, and improves hoisting stability and safety.
Smart Images

Figure CN224160275U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crane technology, specifically to a crane sling stabilization device. Background Technology
[0002] Slings are tools used to lift heavy objects, and are usually made of fiber rope, steel wire rope, or synthetic fiber materials. The main function of slings is to transmit force through their connection with the object, ensuring that the object is lifted or moved safely and stably during the lifting process.
[0003] For example, a crane sling stabilizing device, disclosed in CN221093479U, includes a crane and a wire rope. The wire rope is mounted on the crane. It also includes a detection mechanism for detecting the wire rope's sway and an adjustment mechanism for adjusting the wire rope to ensure stability at the bottom. A fixed frame is installed at the bottom of the crane outside the wire rope. The detection mechanism is installed below and on one side of the fixed frame, and the adjustment mechanism is installed inside the fixed frame. Through the cooperation of the detection and adjustment mechanisms, when the crane sways while lifting goods via the wire rope, the sway of the wire rope can compress the sway frame, causing it to rotate. This detects the sway of the wire rope, and then the adjustment mechanism is used to lock and lift the wire rope on the opposite side, thereby reducing the overall sway of the wire rope, stabilizing the lifting process, and improving the stability and safety of the sling.
[0004] The aforementioned patent proposes to lock and lift the wire rope on the opposite side by controlling the adjustment mechanism, thereby reducing the overall swing of the wire rope and stabilizing the hoisting process. However, in actual use, long-term locking and lifting of the wire rope may cause wear on the wire rope and adjustment mechanism, reduce their service life, increase the cost of replacement and maintenance, and make it inconvenient to use. Utility Model Content
[0005] The purpose of this invention is to provide a sling stabilization device for cranes to solve the problem mentioned in the background art that the wire rope and adjustment mechanism will be worn.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a crane sling stabilizing device, comprising a sling, the sling including a lifting ring and a steel wire rope installed at the lower end of the lifting ring, the steel wire rope being provided in two sets, a fixing ring being installed at the bottom end of the steel wire rope, fixing components being installed on the outer surface of both sets of steel wire rope, connecting components being installed on the outer surface of the fixing components, and connecting components being installed between the connecting components;
[0007] The connecting component includes a connecting pipe and an installation groove at the bottom end of the connecting pipe, a pipe groove at the middle end of the connecting pipe and at the top end of the installation groove, and a connecting hole at the top end of the connecting pipe.
[0008] The connecting component includes a connecting pipe and side strips installed at both ends of the connecting pipe. A threaded shaft is installed at the top of the side strip, and an internal threaded ring is threaded onto the outer surface of the threaded shaft. A fixing rope is installed at the top of the connecting pipe, and one end of the fixing rope is installed at the bottom of the lifting ring.
[0009] Preferably, the fixing member includes an outer tube and a side connecting ring installed on the outer surface of the outer tube, and an elastic ring is installed at the top of the side connecting strip and at the lower end of the outer surface of the threaded shaft.
[0010] Preferably, the connecting pipe has a connecting groove extending through its middle end, and the connecting groove is located on the side away from the mounting groove.
[0011] Preferably, the inner wall of the outer sleeve is fitted with a rubber ring, and there are two sets of rubber rings, which are respectively installed at the upper and lower ends of the inner side of the outer sleeve.
[0012] Preferably, the inner wall of the outer sleeve is provided with an inner groove between the two sets of rubber rings, the inner wall of the inner groove is provided with a threaded hole on the outer surface of the outer sleeve, a bolt is threaded into the threaded hole, a bending strip is movably installed inside the inner groove, and one end of the bolt is movably installed on the outer wall of the bending strip.
[0013] Preferably, a positioning pin is installed on the outer surface of the bending strip and at the middle position facing the outer sleeve.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. The present invention discloses a crane sling stabilizing device. When lifting items, after binding the items with a fixing ring, the connecting pipe installed on the outside of the outer sleeve is rotated to a horizontal state. The connecting pipe is positioned between two sets of connecting pipes. The inner threaded ring squeezes the connecting pipe and moves it to one side of the side connecting strip, fixing the connecting component between the two sets of connecting pipes and fixing the two sets of wire ropes. When lifting items with slings, the two sets of connecting components and connecting components support the two sets of wire ropes, preventing the two sets of wire ropes from getting tangled together and affecting the lifting effect of the items.
[0016] 2. The crane sling stabilizing device disclosed in this utility model allows for the adjustment of the outer sleeve to the middle position of the wire rope when the item is small. After the position of the fixing component is determined, the bolt can be rotated to move the pushing bending strip to one side of the wire rope. The positioning pin is inserted into the outer surface of the wire rope to fix the position of the fixing component. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0018] Figure 2This is a three-dimensional structural diagram of the fixing component and connecting component of this utility model;
[0019] Figure 3 This is a schematic diagram of the outer sleeve structure of this utility model;
[0020] Figure 4 This is a three-dimensional structural diagram of the connecting component of this utility model.
[0021] In the diagram: 1. Sling; 11. Lifting ring; 12. Fixing ring; 13. Wire rope; 14. Fixing component; 141. Outer tube; 142. Side connecting ring; 143. Inner groove; 144. Bending strip; 145. Positioning pin; 146. Bolt; 147. Threaded hole; 148. Rubber ring; 15. Connecting component; 151. Connecting pipe; 152. Mounting groove; 153. Connecting hole; 154. Pipe groove; 155. Connecting groove; 16. Connecting component; 161. Connecting pipe; 162. Side connecting strip; 163. Threaded shaft; 164. Elastic ring; 165. Internal threaded ring; 17. Fixing rope. Detailed Implementation
[0022] 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.
[0023] Example 1: Please refer to Figure 1 , Figure 2 Figure 4 A crane sling stabilizing device includes a sling 1, which includes a lifting ring 11 and a steel wire rope 13 installed at the lower end of the lifting ring 11. The steel wire rope 13 is provided in two sets, and a fixing ring 12 is installed at the bottom end of the steel wire rope 13. Fixing members 14 are installed on the outer surface of both sets of steel wire rope 13, and connecting members 15 are installed on the outer surface of the fixing members 14. Connecting members 16 are installed between the connecting members 15.
[0024] The connecting component 15 includes a connecting pipe 151 and a mounting groove 152 at the bottom end of the connecting pipe 151. A pipe groove 154 is provided at the middle end of the connecting pipe 151 and at the top end of the mounting groove 152. A connecting hole 153 is provided at the top end of the connecting pipe 151.
[0025] The connecting component 16 includes a connecting pipe 161 and side strips 162 installed at both ends of the connecting pipe 161. A threaded shaft 163 is installed at the top end of the side strip 162. An internal threaded ring 165 is threadedly connected to the outer surface of the threaded shaft 163. A fixing rope 17 is installed at the top end of the connecting pipe 161. One end of the fixing rope 17 is installed at the bottom end of the lifting ring 11. The diameter of the internal threaded ring 165 is larger than the diameter of the connecting hole 153.
[0026] The fixing component 14 includes an outer tube 141 and a side connecting ring 142 installed on the outer surface of the outer tube 141. An elastic ring 164 is installed at the top of the side connecting strip 162 and at the lower end of the outer surface of the threaded shaft 163. The elastic ring 164 contacts the inside of the connecting tube 151. When the wire rope 13 used for hoisting the item swings, the elastic ring 164 can reduce the friction between the connecting component 15 and the connecting component 16, thus avoiding noise generation.
[0027] A connecting groove 155 is provided through the middle end of the connecting pipe 151, and the connecting groove 155 is located on the side away from the mounting groove 152. The connecting pipe 151 with the connecting groove 155 is movably installed on the outside of the side connecting ring 142, so that the position of the connecting member 15 can be adjusted when storing the sling 1.
[0028] In this embodiment: two sets of outer sleeves 141 are respectively fitted onto the outer surfaces of two sets of wire ropes 13, with the two sets of outer sleeves 141 aligned. When hoisting items, after binding the items with fixing rings 12, the connecting pipes 151 installed on the outside of the outer sleeves 141 are rotated to a horizontal state, with the side connecting strip 162 inside the mounting groove 152, and the connecting pipe 161 between the two sets of connecting pipes 151. The threaded shaft 163 is inserted from the lower end of the connecting hole 153, and the inner threaded ring 165 is rotated to provide elasticity. The ring 164 contacts the inner wall of the connecting pipe 151 with the groove 154. The internal threaded ring 165 presses the connecting pipe 151 to move to one side of the side connecting strip 162, fixing the connecting member 16 between the two sets of connecting pipes 151 and fixing the two sets of wire ropes 13. When the sling 1 is used to lift the item, the two sets of connecting members 15 and the connecting member 16 support the two sets of wire ropes 13 to prevent the two sets of wire ropes 13 from getting tangled together and affecting the lifting effect of the item.
[0029] Example 2: This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figures 2-4 The inner wall of the outer tube 141 is equipped with a rubber ring 148, and there are two sets of rubber rings 148. The two sets of rubber rings 148 are respectively installed at the upper and lower ends of the inner wall of the outer tube 141. The rubber rings 148 reduce the friction between the wire rope 13 and the outer tube 141.
[0030] An inner groove 143 is formed on the inner wall of the outer sleeve 141 between the two sets of rubber rings 148. A threaded hole 147 is formed on the inner wall of the inner groove 143 and on the outer surface of the outer sleeve 141. A bolt 146 is threadedly connected inside the threaded hole 147. A bending strip 144 is movably installed inside the inner groove 143, and one end of the bolt 146 is movably installed on the outer wall of the bending strip 144. The bending strip 144 has the same shape and size as the inner groove 143, which facilitates the limitation of the movement angle of the bending strip 144.
[0031] A positioning pin 145 is installed on the outer surface of the bending strip 144 and at the middle position facing the outer sleeve 141. The positioning pin 145 can be inserted into the outside of the wire rope 13 to facilitate fixing the position of the fixing component 14.
[0032] In this embodiment: the top end of the fixing rope 17 is connected to the bottom end of the lifting ring 11, and the bottom end of the fixing rope 17 is installed at the top end of the connecting tube 161. The fixing rope 17 is used to connect the connecting member 16. When the item is small, the position of the outer tube 141 can be adjusted to the middle position of the wire rope 13. After the position of the fixing member 14 is determined, the bolt 146 can be rotated to move the pushing bending strip 144 to one side of the wire rope 13. The positioning pin 145 is inserted into the outer surface of the wire rope 13 to position the fixing member 14. When the bending strip 144 moves, it moves along the inside of the inner groove 143, and the angle of movement of the bending strip 144 is limited. This device makes it easy to adjust the position of the fixing component 14, the connecting component 15 and the connecting component 16 according to the size of the object being lifted. The fixing rope 17 can be wrapped around the lower end of the lifting ring 11, and the connecting component 16 can pass through the inside of the lifting ring 11. When the wire rope 13 is taut due to gravity, the fixing rope 17 can also provide an upward pulling force to the connecting component 16 and the object.
[0033] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A crane sling stabilizing device, comprising a sling (1), characterized in that: The sling (1) includes a lifting ring (11) and a steel wire rope (13) installed at the lower end of the lifting ring (11). There are two sets of steel wire rope (13). A fixing ring (12) is installed at the bottom end of the steel wire rope (13). Fixing members (14) are installed on the outer surface of both sets of steel wire rope (13). Connecting members (15) are installed on the outer surface of the fixing members (14). Connecting members (16) are installed between the connecting members (15). The connecting member (15) includes a connecting pipe (151) and an installation groove (152) opened at the bottom end of the connecting pipe (151). A pipe groove (154) is opened at the middle end of the connecting pipe (151) and at the top end of the installation groove (152). A connecting hole (153) is opened at the top end of the connecting pipe (151). The connecting member (16) includes a connecting pipe (161) and side strips (162) installed at both ends of the connecting pipe (161). A threaded shaft (163) is installed at the top of the side strip (162). An internal threaded ring (165) is threaded onto the outer surface of the threaded shaft (163). A fixing rope (17) is installed at the top of the connecting pipe (161). One end of the fixing rope (17) is installed at the bottom of the lifting ring (11).
2. The crane sling stabilizing device according to claim 1, characterized in that: The fixing member (14) includes an outer tube (141) and a side ring (142) installed on the outer surface of the outer tube (141). An elastic ring (164) is installed at the top of the side strip (162) and at the lower end of the outer surface of the threaded shaft (163).
3. A crane sling stabilizing device according to claim 1, characterized in that: The connecting pipe (151) has a connecting groove (155) through its middle end, and the connecting groove (155) is located on the side away from the mounting groove (152).
4. A crane sling stabilizing device according to claim 2, characterized in that: The inner wall of the outer tube (141) is equipped with a rubber ring (148), and there are two sets of rubber rings (148), which are respectively installed at the upper and lower ends of the inner wall of the outer tube (141).
5. A crane sling stabilizing device according to claim 4, characterized in that: An inner groove (143) is provided on the inner wall of the outer sleeve (141) and between the two sets of rubber rings (148). A threaded hole (147) is provided on the inner wall of the inner groove (143) and on the outer surface of the outer sleeve (141). A bolt (146) is threadedly connected to the inside of the threaded hole (147). A bending strip (144) is movably installed inside the inner groove (143), and one end of the bolt (146) is movably installed on the outer wall of the bending strip (144).
6. A crane sling stabilizing device according to claim 5, characterized in that: A positioning pin (145) is installed on the outer surface of the bending strip (144) and at the middle position facing the outer sleeve (141).
Citation Information
Patent Citations
Sling stabilizing device for crane
CN221093479U