Combined wear-resistant lifting lug
The sliding rod, sleeve block, and clamping rod structure of the combined wear-resistant lifting lugs enable convenient fixing of the lifting lugs, and the pressure of lubricating oil achieves wear resistance, solving the problems of inconvenient fixing and poor wear resistance of the lifting lugs, and improving the service life of the lifting lugs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGCHUN DIDALON RAIL VEHICLE EQUIP CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-29
AI Technical Summary
Existing lifting lugs have difficulties in terms of fixation and wear resistance, resulting in short service life, inconvenient fixation, and the need for frequent replacement.
A modular wear-resistant lifting lug was designed. The lug is conveniently fixed through a combination structure of sliding rod, sleeve block and clamping rod, and wear resistance is achieved by applying pressure with lubricating oil. Stable clamping and lubrication of the lug are achieved by the cooperation of spring and rotating rod.
This design achieves convenient fixing of the lifting lugs and improves their wear resistance, extending their service life and reducing the frequency of replacement.
Smart Images

Figure CN224298678U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lifting lug technology, specifically a combined wear-resistant lifting lug. Background Technology
[0002] Lifting lugs are load-bearing components installed on equipment for lifting. They are important connecting parts in equipment hoisting and are directly related to the safety of hoisting large equipment.
[0003] While existing lifting lugs can lift parts, traditional lugs are not convenient for securing them, requiring a significant amount of time to fix them in place. They are also not easy to make wear-resistant, necessitating replacement after prolonged use and thus reducing their lifespan. Therefore, a combined wear-resistant lifting lug has been introduced. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a modular wear-resistant lifting lug, which has the advantages of easy fixing of the lifting lug and good wear resistance, thus solving the problems mentioned in the background art.
[0005] This utility model provides the following technical solution: a combined wear-resistant lifting lug, including a mounting plate, a support plate fixedly mounted on the bottom of the mounting plate, a sliding rod slidably connected to the inner wall of the support plate, a sleeve block and a baffle fixedly mounted on the outer wall of the sliding rod, a spring fixedly mounted on the outer wall of the baffle, a rotating rod rotatably connected to the outer wall of the sleeve block, a clamping rod fixedly mounted on the outer wall of the rotating rod, a rotating column rotatably connected to the bottom of the mounting plate, and a wear-resistant component provided at the bottom of the mounting plate.
[0006] As a preferred technical solution of this utility model: a placement block is fixedly assembled at the bottom of the mounting plate, a lifting lug body is placed on the outer wall of the placement block, and a liquid inlet pipe is provided on the outer wall of the wear-resistant component.
[0007] As a preferred technical solution of this utility model: the wear-resistant component includes a liquid storage tank, a guide tube is fixedly installed at the bottom of the liquid storage tank, a pressure plate and a moving rod are slidably connected to the inner wall of the liquid storage tank, a fixing plate is fixedly installed at one end of the moving rod, a connecting block is fixedly installed at the other end of the moving rod, a spring is fixedly installed on the outer wall of the fixing plate, a cylinder is rotatably connected to the inner wall of the connecting block, a lifting rod is fixedly installed at one end of the outer wall of the cylinder, a connecting rod is fixedly installed at the other end of the lifting rod, a fixing block is fixedly installed at the bottom of the pressure plate, and a fixing rod is rotatably connected to the inner wall of the fixing block.
[0008] As a preferred technical solution of this utility model: the liquid storage tank is fixedly assembled with the bottom of the mounting plate, the second spring is fixedly assembled with the outer wall of the liquid storage tank, the liquid inlet pipe is fixedly assembled with the outer wall of the liquid storage tank, both the liquid inlet pipe and the guide pipe are connected to the inner wall of the liquid storage tank, and the connecting rod is fixedly assembled with the outer wall of the fixing rod.
[0009] As a preferred technical solution of this utility model: the clamping rod is fixedly assembled with the outer wall of the rotating column, the sliding rod is adapted to the inner wall of the lifting lug body, and the spring is fixedly assembled with the outer wall of the support plate.
[0010] As a preferred technical solution of this utility model: there are two of each of the following components: support plate, sliding rod, sleeve block, baffle, spring one, rotating rod, clamping rod, and rotating column, and the two support plates, sliding rods, sleeve blocks, baffles, spring one, rotating rods, clamping rods, and rotating columns are located at the bottom of the mounting plate.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. This combined wear-resistant lifting lug, when installed, involves the worker pulling a baffle, causing the baffle to move the sliding rod and sleeve block along the inner wall of the support plate. After the lifting lug body is placed on the outer wall of the placement block, the worker releases the pulling force on the baffle, releasing the elastic potential energy of the spring. The spring then causes the sliding rod to retract. As the sliding rod retracts, it moves the sleeve block, causing the clamping rod and rotating rod to rotate along the inner wall of the sleeve block. The rotating column limits the clamping rod, causing the rotating column to clamp the clamping rod against the outer wall of the support plate, thus fixing the lifting lug body.
[0013] 2. After use, this combined wear-resistant lifting lug, when pressed by the operator, causes the fixed plate to move along the inner wall of the storage tank. This movement of the fixed plate, in turn, moves the connecting block, causing the cylinder and lifting rod to rotate within the connecting block. The rotation of the lifting rod applies pressure to the lifting rod, fixed rod, and connecting rod, causing the fixed block to move along the inner wall of the storage tank. Because the storage tank is a sealed space, the movement of the pressure plate pressurizes the lubricating oil. This pressure causes the lubricating oil to flow from the inner wall of the guide pipe and circulate to the outer wall of the lifting lug body, thus providing better wear protection during use. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the liquid inlet pipe structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the sliding rod structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the guide tube structure of this utility model;
[0018] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle;
[0019] Figure 6 This utility model Figure 4 Enlarged structural diagram at point B.
[0020] In the diagram: 1. Mounting plate; 2. Lifting lug body; 3. Wear-resistant component; 4. Support plate; 5. Placement block; 6. Sliding rod; 7. Sleeve block; 8. Baffle; 9. Spring 1; 10. Rotating rod; 11. Clamping rod; 12. Rotating column; 13. Liquid inlet pipe;
[0021] 301. Liquid reservoir; 302. Guide tube; 303. Pressure plate; 304. Moving rod; 305. Fixing plate; 306. Spring II; 307. Connecting block; 308. Cylinder; 309. Lifting rod; 310. Fixing block; 311. Fixing rod; 312. Connecting rod. 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 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.
[0023] Please see Figure 1 - Figure 6 The combined wear-resistant lifting lug includes a mounting plate 1, a support plate 4 fixedly mounted on the bottom of the mounting plate 1, a sliding rod 6 slidably connected to the inner wall of the support plate 4, a sleeve block 7 and a baffle 8 fixedly mounted on the outer wall of the sliding rod 6, a spring 9 fixedly mounted on the outer wall of the baffle 8, a rotating rod 10 rotatably connected to the outer wall of the sleeve block 7, a clamping rod 11 fixedly mounted on the outer wall of the rotating rod 10, a rotating column 12 rotatably connected to the bottom of the mounting plate 1, and a wear-resistant component 3 provided at the bottom of the mounting plate 1.
[0024] In the above structure, during the installation of the lifting lug body 2, the operator pulls the baffle 8, causing the baffle 8 to drive the sliding rod 6 and the sleeve block 7 to move on the inner wall of the support plate 4. Then, the lifting lug body 2 is placed on the outer wall of the placement block 5. The operator then releases the pulling force on the baffle 8. At this time, the elastic potential energy of the spring 9 is released, which in turn drives the sliding rod 6 to retract. During the retraction of the sliding rod 6, the sleeve block 7 is moved. When the sleeve block 7 moves, it will further drive the clamping rod 11 and the rotating rod 10 to rotate on the inner wall of the sleeve block 7. At the same time, the rotating column 12 limits the clamping rod 11, so that the rotating column 12 guides the clamping rod 11 to clamp the outer wall of the support plate 4, thereby fixing the lifting lug body 2.
[0025] In a preferred embodiment: a placement block 5 is fixedly mounted on the bottom of the mounting plate 1, a lifting lug body 2 is placed on the outer wall of the placement block 5, and an inlet pipe 13 is provided on the outer wall of the wear-resistant component 3;
[0026] In the above structure, the lifting lug body 2 is limited by the placement block 5, so that the lifting lug body 2 will not detach when placed on the outer wall of the placement block 5, and the lubricating oil inside the liquid storage tank 301 is replenished by the liquid inlet pipe 13.
[0027] In a preferred embodiment: the wear-resistant component 3 includes a liquid storage tank 301, a guide tube 302 is fixedly mounted on the bottom of the liquid storage tank 301, a pressure plate 303 and a moving rod 304 are slidably connected to the inner wall of the liquid storage tank 301, a fixing plate 305 is fixedly mounted on one end of the moving rod 304, a connecting block 307 is fixedly mounted on the other end of the moving rod 304, a spring 306 is fixedly mounted on the outer wall of the fixing plate 305, a cylinder 308 is rotatably connected to the inner wall of the connecting block 307, a lifting rod 309 is fixedly mounted on the outer wall of the cylinder 308, a connecting rod 312 is fixedly mounted on the other end of the lifting rod 309, a fixing block 310 is fixedly mounted on the bottom of the pressure plate 303, and a fixing rod 311 is rotatably connected to the inner wall of the fixing block 310.
[0028] In the above structure, after the equipment is used, the operator operates the fixing plate 305, which drives the moving rod 304 to move along the inner wall of the liquid storage tank 301. During the movement of the moving rod 304, the connecting block 307 moves accordingly, which in turn drives the cylinder 308 and the lifting rod 309 to rotate on the inner wall of the connecting block 307. When the lifting rod 309 rotates, it applies pressure to the lifting rod 309, the fixing rod 311 and the connecting rod 312, causing the fixing block 310 to be pressed and push the pressure plate 303 to move on the inner wall of the liquid storage tank 301. Since the gas inside the liquid storage tank 301 is in a closed space, the pressure plate 303 will compress the gas inside when it moves, causing the lubricating oil to be squeezed out from the inner wall of the guide pipe 302 and act on the outer wall of the lifting lug body 2, thereby achieving a better anti-wear effect during the use of the lifting lug body 2.
[0029] In a preferred embodiment: the liquid storage tank 301 is fixedly assembled to the bottom of the mounting plate 1, the second spring 306 is fixedly assembled to the outer wall of the liquid storage tank 301, the liquid inlet pipe 13 is fixedly assembled to the outer wall of the liquid storage tank 301, the liquid inlet pipe 13 and the guide pipe 302 are both connected to the inner wall of the liquid storage tank 301, and the connecting rod 312 is fixedly assembled to the outer wall of the fixing rod 311.
[0030] In the above structure, the wear-resistant component 3 is limited by the mounting plate 1, making the wear-resistant component 3 more stable during operation or placement. The spring 306 is limited by the liquid storage tank 301, and the inlet pipe 13 injects oil into the inner wall of the liquid storage tank 301. The lubricating oil inside the liquid storage tank 301 is transported by the guide pipe 302. The pressure plate 303 and the lifting rod 309 are connected by the connecting rod 312.
[0031] In a preferred embodiment: the clamping rod 11 is fixedly assembled with the outer wall of the rotating column 12, the sliding rod 6 is adapted to the inner wall of the lifting lug body 2, and the spring 9 is fixedly assembled with the outer wall of the support plate 4.
[0032] In the above structure, the clamping rod 11 is limited by the rotating column 12, so that the clamping rod 11 is supported when placed and will not fall off. When the sliding rod 6 moves to the inner wall of the lifting lug body 2, the lifting lug body 2 is fixed. The baffle 8 and the support plate 4 limit the spring 9 to prevent the spring 9 from falling off when releasing its elastic potential energy.
[0033] In a preferred embodiment: there are two of each of the following components: support plate 4, sliding rod 6, sleeve block 7, baffle 8, spring 9, rotating rod 10, clamping rod 11, and rotating column 12. The two support plates 4, sliding rod 6, sleeve block 7, baffle 8, spring 9, rotating rod 10, clamping rod 11, and rotating column 12 are located at the bottom of the mounting plate 1.
[0034] In the above structure, the lifting lug body 2 is fixed by two support plates 4, sliding rod 6, sleeve block 7, baffle 8, spring 9, rotating rod 10, clamping rod 11, and rotating column 12, so that the lifting lug body 2 is more stable when placed or operated and will not fall off.
[0035] Working principle: During the installation of the lifting lug body 2, the operator pulls the baffle 8, causing the sliding rod 6 and the sleeve block 7 to move on the inner wall of the support plate 4. Then, the lifting lug body 2 is placed on the outer wall of the placement block 5, releasing the tension on the baffle 8. This releases the potential energy of the spring 9, which pushes the sliding rod 6 back. During the backsliding process, the sliding rod 6 moves the sleeve block 7. The movement of the sleeve block 7 causes the clamping rod 11 and the rotating rod 10 to rotate on the inner wall of the sleeve block 7. The rotating column 12 limits the clamping rod 11, guiding it to clamp the outer wall of the support plate 4, thereby fixing the lifting lug body 2. After the equipment is used, the operator presses the fixing plate 305, causing the fixing plate 305 to move. The moving rod 304 moves on the inner wall of the liquid storage tank 301. The movement of the moving rod 304 drives the connecting block 307, which in turn causes the connecting block 307 to push the cylinder 308 and the lifting rod 309 to rotate on the inner wall of the connecting block 307. When the lifting rod 309 rotates, it applies pressure to the lifting rod 309, the fixed rod 311 and the connecting rod 312, causing the fixed block 310 to push the pressure plate 303 to move on the inner wall of the liquid storage tank 301 under pressure. Since the gas inside the liquid storage tank 301 is in a closed space, the movement of the pressure plate 303 causes the gas to pressurize the lubricating oil. The lubricating oil flows out from the inner wall of the guide pipe 302 and lubricates the outer wall of the lifting lug body 2, ensuring that the lifting lug body 2 gets a better anti-wear effect during use.
[0036] 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.
Claims
1. A modular wear-resistant lifting lug, including a mounting plate (1), characterized in that: The bottom of the mounting plate (1) is fixedly fitted with a support plate (4), the inner wall of the support plate (4) is slidably connected with a sliding rod (6), the outer wall of the sliding rod (6) is fixedly fitted with a sleeve block (7) and a baffle (8), the outer wall of the baffle (8) is fixedly fitted with a spring (9), the outer wall of the sleeve block (7) is rotatably connected with a rotating rod (10), the outer wall of the rotating rod (10) is fixedly fitted with a clamping rod (11), the bottom of the mounting plate (1) is rotatably connected with a rotating column (12), and the bottom of the mounting plate (1) is provided with a wear-resistant component (3).
2. The combined wear-resistant lifting lug according to claim 1, characterized in that: The bottom of the mounting plate (1) is fixedly fitted with a placement block (5), and the outer wall of the placement block (5) is fitted with a lifting lug body (2). The outer wall of the wear-resistant component (3) is provided with a liquid inlet pipe (13).
3. The combined wear-resistant lifting lug according to claim 2, characterized in that: The wear-resistant component (3) includes a liquid storage tank (301), a guide tube (302) is fixedly installed at the bottom of the liquid storage tank (301), a pressure plate (303) and a moving rod (304) are slidably connected to the inner wall of the liquid storage tank (301), a fixing plate (305) is fixedly installed at one end of the moving rod (304), a connecting block (307) is fixedly installed at the other end of the moving rod (304), a spring (306) is fixedly installed on the outer wall of the fixing plate (305), a cylinder (308) is rotatably connected to the inner wall of the connecting block (307), a lifting rod (309) is fixedly installed on the outer wall of the cylinder (308), a connecting rod (312) is fixedly installed at the other end of the lifting rod (309), a fixing block (310) is fixedly installed at the bottom of the pressure plate (303), and a fixing rod (311) is rotatably connected to the inner wall of the fixing block (310).
4. The combined wear-resistant lifting lug according to claim 3, characterized in that: The liquid storage tank (301) is fixedly assembled to the bottom of the mounting plate (1), the second spring (306) is fixedly assembled to the outer wall of the liquid storage tank (301), the liquid inlet pipe (13) is fixedly assembled to the outer wall of the liquid storage tank (301), the liquid inlet pipe (13) and the guide pipe (302) are both connected to the inner wall of the liquid storage tank (301), and the connecting rod (312) is fixedly assembled to the outer wall of the fixing rod (311).
5. The combined wear-resistant lifting lug according to claim 2, characterized in that: The clamping rod (11) is fixedly assembled with the outer wall of the rotating column (12), the sliding rod (6) is adapted to the inner wall of the lifting lug body (2), and the spring (9) is fixedly assembled with the outer wall of the support plate (4).
6. The combined wear-resistant lifting lug according to claim 2, characterized in that: The number of each of the following components is two: support plate (4), sliding rod (6), sleeve block (7), baffle (8), spring one (9), rotating rod (10), clamping rod (11), and rotating column (12). Each of these components is located at the bottom of the mounting plate (1).