Round steel lifting appliance

Abstract

The utility model relates to the technical field of hoisting slings, and discloses a round steel sling which comprises a bearing frame, the outer side of the bearing frame is fixedly connected with sliding rods which are opposite left and right, the rear outer wall of the middle end of the outer side of each sliding rod is fixedly connected with a second motor, and the output end of each second motor is fixedly connected with a threaded rod. The outer side of the middle end of the threaded rod is in threaded connection with left and right opposite threaded sleeves, the top ends of the threaded sleeves are fixedly connected with a sliding frame, the inner side of the sliding frame is fixedly connected with a bearing rod, the outer side of the middle end of the bearing rod is rotationally connected with a fixing clamp, and the inner side of the bottom end of the fixing clamp is connected with round steel in a clamped mode. According to the round steel hoisting device, the movable fixing clamps are arranged on the two sides, so that round steel can be clamped more uniformly, the stability of the round steel in the hoisting process is improved, the possibility of shaking and sliding is reduced, meanwhile, the round steel hoisting device can be adjusted and moved according to specific conditions, the operation flexibility in the hoisting process is improved, and the adaptability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting slings, in particular to a round steel sling. Background Technique

[0002] A round steel sling is a tool for hoisting and transporting heavy objects, usually made of round steel. Its main function is to provide stable support and load bearing to ensure safety and stability during the hoisting process. This kind of sling is widely used in construction sites, manufacturing industries, ships, energy industries and other occasions where heavy object hoisting is required. Due to its high strength and durability, the round steel sling can effectively complete the hoisting task under various environments and conditions. With the continuous development of industrial technology, the design and manufacturing process of the round steel sling are also constantly improved to meet the increasingly complex hoisting requirements.

[0003] After retrieval, the existing patent (Publication No.: CN207108253U) discloses a round steel sling, which includes four hinge shafts, a sling ring, and two four-bar link mechanisms. The sling ring is fixed in the middle of the upper middle hinge shaft. The four-bar link mechanism includes two lifting rods and two clamping rods. One end of the two lifting rods is hinged at the end of the upper middle hinge shaft. One end of the two clamping rods is respectively hinged at the other ends of the two lifting rods at the ends of the hinge shafts at both ends. The middle parts of the two clamping rods are hinged to each other at the end of the lower middle hinge shaft. The lower part of the clamping rod is provided with a clamping part with an arc shape. A limiting rod is fixedly installed in the middle of one end of the hinge shaft. The limiting rod is located above the lower middle hinge shaft and the hinge shaft at the other end. The limiting rod is respectively provided with hinge shaft clamping grooves at the corresponding positions of the lower middle hinge shaft and the hinge shaft at the other end. The device provided by the utility model has a simple structure, is convenient to operate, is not easy to shake during hoisting, and is convenient for storage and handling.

[0004] However, in the actual use process of the above scheme, when hoisting a round steel with a longer size, because a longer size puts forward higher requirements for stability, and the round steel is fixed through one point. During transportation, because the surface of the round steel is round and only one fixture is used for clamping, it may cause the round steel to be unstable during hoisting, and it is easy to shake or slide, increasing the risk of accidents.

[0005] In view of this, the utility model proposes a round steel sling. Content of the Utility Model

[0006] The utility model proposes a round steel sling, which solves the problem that the hoisting of long-sized round steel may be unstable in the related technology.

[0007] The technical solution of the present utility model is as follows: A round steel sling, including a receiving frame, on the outer side of the receiving frame are fixedly connected with left and right opposite sliding rods. At the rear outer wall of the middle part of the sliding rod is fixedly connected with a second motor, and the output end of the second motor is fixedly connected with a threaded rod. A left and right opposite threaded sleeve is threadedly connected to the outer side of the middle part of the threaded rod. The top of the threaded sleeve is fixedly connected with a sliding frame, and the inner side of the sliding frame is fixedly connected with a load-bearing rod. A fixed clamp is rotatably connected to the outer side of the middle part of the load-bearing rod, and a round steel is snap-fitted to the inner side of the bottom end of the fixed clamp.

[0008] Preferably, the sliding frame is slidably connected to the sliding rod.

[0009] Preferably, a connecting column is fixedly connected to the middle side of the top of the receiving frame, and a limiting frame is rotatably connected to the outer side of the connecting column.

[0010] Preferably, a fixing frame is fixedly connected to the top of the limiting frame, and front and rear opposite limiting sleeves are fixedly connected to the bottom end of the left side of the fixing frame.

[0011] Preferably, a first motor is fixedly connected to the rear end of the rear limiting sleeve, and a worm is fixedly connected to the output end of the first motor.

[0012] Preferably, the worm is meshed with a worm wheel on the right side, and a driving gear is fixedly connected to the top of the worm wheel.

[0013] Preferably, the driving gear is meshed with a driven gear on the right side, and the driven gear is meshed with a toothed ring on the right side.

[0014] Preferably, a connecting column is fixedly connected to the inner side of the toothed ring, and the connecting column is fixedly connected to the receiving frame.

[0015] Preferably, the limiting frame is snap-fitted with the driving gear and the limiting frame is snap-fitted with the toothed ring.

[0016] Preferably, a fixing frame is fixedly connected to the top of the limiting frame, and evenly distributed pulleys are fixedly connected to the outer side of the top of the fixing frame, and a sling is arranged inside the pulley.

[0017] The working principle and beneficial effects of the present utility model are as follows:

[0018] 1. In the present utility model, the threaded rod is driven to rotate by the second motors on both sides, and the threaded sleeves and the sliding frames on both sides are driven to move towards each other by the threaded rod at the same time. Thus, the load-bearing rods and the fixed clamps are driven to move towards each other by the sliding frames at the same time. Then, the round steel is clamped by the fixed clamps. By arranging movable clamps on both sides, the round steel can be clamped more evenly, improving the stability of the round steel during the hoisting process, reducing the possibility of shaking and sliding. At the same time, it can be adjusted and moved according to the specific situation, increasing the operation flexibility during the hoisting process and having stronger adaptability;

[0019] 2. In the present utility model, the first motor drives the worm to rotate, and the worm drives the driven gear to rotate by means of the worm gear and the driving gear. At the same time, the driven gear drives the connecting column to rotate by means of the toothed ring, and the connecting column drives the receiving frame, the bottom structure and the round steel to rotate, so as to adjust the horizontal angle of the round steel. Different diameters or lengths of round steel may require different angles to ensure safe hoisting. By adjusting the horizontal angle, round steel of various shapes and sizes can be adapted, improving the versatility and adaptability of the lifting tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0021] Figure 1 is the front view three-dimensional structure schematic diagram of the present utility model;

[0022] Figure 2 of the present utility model Figure 1 is the enlarged structure schematic diagram at A in;

[0023] Figure 3 is the three-dimensional structure schematic diagram at the limiting sleeve of the present utility model;

[0024] Figure 4 is the sectional structure schematic diagram of the fixing frame of the present utility model;

[0025] Figure 5 of the present utility model Figure 4 is the enlarged structure schematic diagram at B in;

[0026] Figure 6 is the three-dimensional structure schematic diagram at the receiving frame of the present utility model;

[0027] Figure 7 of the present utility model Figure 6 is the enlarged structure schematic diagram at C in;

[0028] Figure 8 is the three-dimensional structure schematic diagram at the fixing frame of the present utility model.

[0029] In the figure: 1, sling; 2, pulley; 3, fixing frame; 4, limiting sleeve; 5, first motor; 6, worm; 7, driving gear; 8, driven gear; 9, toothed ring; 10, connecting column; 11, limiting frame; 12, receiving frame; 13, worm gear; 14, sliding rod; 15, second motor; 16, threaded rod; 17, threaded sleeve; 18, sliding frame; 19, load-bearing rod; 20, fixing clamp; 21, round steel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0031] Embodiment 1

[0032] A preferred embodiment of a round steel sling provided by the present utility model is as Figures 1 to 3 shown: A round steel sling includes a receiving frame 12. On the outer side of the receiving frame 12, there are fixedly connected left and right opposite sliding rods 14. The receiving frame 12 supports and fixes the sliding rods 14. At the rear outer wall of the middle part of the outer side of the sliding rod 14, there is fixedly connected a second motor 15. The sliding rod 14 fixes the second motor 15. The output end of the second motor 15 is fixedly connected with a threaded rod 16. The second motor 15 drives the threaded rod 16 to rotate. On the outer side of the middle part of the threaded rod 16, there are threadedly connected left and right opposite threaded sleeves 17. The threaded rod 16 limits the threaded sleeves 17. The top end of the threaded sleeve 17 is fixedly connected with a sliding frame 18. The threaded sleeve 17 limits the sliding frame 18. Through the left and right movement of the threaded sleeve 17, the sliding frame 18 is driven to move synchronously. Inside the sliding frame 18, there is fixedly connected a load-bearing rod 19. The sliding frame 18 fixes the load-bearing rod 19. At the outer side of the middle part of the load-bearing rod 19, there is rotatably connected a fixed clamp 20. The load-bearing rod 19 fixes the fixed clamp 20. Inside the bottom end of the fixed clamp 20, there is a snap connection with a round steel 21. The fixed clamp 20 clamps and fixes the round steel 21.

[0033] In this embodiment, the sliding frame 18 is slidably connected to the sliding rod 14. The sliding rod 14 supports and fixes the sliding frame 18. And wheels are arranged on the inner sides of the front and rear ends of the sliding frame 18 to reduce the friction between the sliding frame 18 and the top end of the sliding rod 14.

[0034] Embodiment 2

[0035] On the basis of Embodiment 1, a preferred embodiment of a round steel sling provided by the present utility model is as Figures 3 to 8 shown: In the middle of the top end of the receiving frame 12, there is fixedly connected a connecting column 10. The receiving frame 12 fixes the connecting column 10. The outer side of the connecting column 10 is rotatably connected with a limiting frame 11. The limiting frame 11 limits the connecting column 10.

[0036] In this embodiment, the top end of the limiting frame 11 is fixedly connected with a fixing frame 3. The fixing frame 3 fixes the limiting frame 11. At the bottom left end of the fixing frame 3, there are fixedly connected front and rear opposite limiting sleeves 4. The fixing frame 3 fixes the limiting sleeves 4.

[0037] In this embodiment, a first motor 5 is fixedly connected to the rear end of the rear side limiting sleeve 4. The first motor 5 is fixed by the rear side limiting sleeve 4. The output end of the first motor 5 is fixedly connected to a worm 6. The first motor 5 drives the worm 6 to rotate, and at the same time, the two sides of the worm 6 are limited and supported by the limiting sleeve 4.

[0038] In this embodiment, a worm gear 13 is meshed and connected to the right side of the worm 6. The rotation of the worm 6 drives the worm gear 13 to rotate. The top end of the worm gear 13 is fixedly connected to a driving gear 7. The worm gear 13 drives the driving gear 7 to rotate synchronously.

[0039] In this embodiment, a driven gear 8 is meshed and connected to the right side of the driving gear 7. A toothed ring 9 is meshed and connected to the right side of the driven gear 8. The driving gear 7 drives the toothed ring 9 to rotate by using the driven gear 8 for transmission.

[0040] In this embodiment, a connecting column 10 is fixedly connected to the inner side of the toothed ring 9. The toothed ring 9 drives the connecting column 10 to rotate. The connecting column 10 is fixedly connected to the receiving frame 12. The connecting column 10 drives the receiving frame 12 to rotate synchronously, so as to drive the outer structure to rotate horizontally through the receiving frame 12, thereby adjusting the horizontal angle of the round steel 21.

[0041] In this embodiment, the limiting frame 11 is rotationally connected to the worm gear 13. The limiting frame 11 limits the worm gear 13. The limiting frame 11 is engaged and connected to the driving gear 7 and the toothed ring 9. The limiting frame 11 engages and fixes the toothed ring 9. At the same time, the limiting frame 11 is also rotationally connected to the toothed ring 9.

[0042] In this embodiment, evenly distributed pulleys 2 are fixedly connected to the outer side of the top end of the fixing frame 3. The fixing frame 3 fixes the pulleys 2. A sling 1 is arranged inside the pulley 2. The sling 1 drives the pulley 2 to lift and lower, and at the same time, the pulley 2 drives the fixing frame 3 to lift and lower.

[0043] Working principle and usage process of the utility model: When using the round steel sling, first, the second motors 15 on both sides drive the threaded rods 16 to rotate. At the same time, the threaded rods 16 drive the threaded sleeves 17 and the sliding frames 18 on both sides to move towards each other. Thus, the sliding frames 18 drive the load-bearing rods 19 and the fixed clamps 20 to move towards each other at the same time. Then, the round steel 21 is clamped by the fixed clamps 20. Then, an external crane lifts the fixed frame 3 through the sling 1 and the pulley 2, and drives the bottom structure and the round steel 21 to be lifted through the fixed frame 3. After that, the first motor 5 drives the worm 6 to rotate. And the worm 6 drives the driven gear 8 to rotate by means of the worm gear 13 and the driving gear 7. At the same time, the driven gear 8 drives the connecting column 10 to rotate by means of the toothed ring 9, and the connecting column 10 drives the bearing frame 12, the bottom structure and the round steel 21 to rotate, so as to adjust the horizontal angle of the round steel 21.

[0044] The above are only the preferred embodiments of the utility model and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A round steel sling, comprising a receiving frame (12), characterized in that, On the outer side of the receiving frame (12), there are slidably connected left and right opposite sliding rods (14). At the rear outer wall of the middle part of the sliding rod (14), there is fixedly connected a second motor (15). The output end of the second motor (15) is fixedly connected with a threaded rod (16). On the outer side of the middle part of the threaded rod (16), there are threadedly connected left and right opposite threaded sleeves (17). The top of the threaded sleeve (17) is fixedly connected with a sliding frame (18). Inside the sliding frame (18), there is fixedly connected a load-bearing rod (19). At the outer side of the middle part of the load-bearing rod (19), there is rotatably connected a fixed clamp (20). Inside the bottom end of the fixed clamp (20), there is snap-fitted a round steel (21).

2. The round steel sling according to claim 1, wherein, The sliding frame (18) is slidably connected with the sliding rod (14).

3. The round steel sling according to claim 1, characterized in that, In the middle of the top of the receiving frame (12), there is fixedly connected a connecting column (10). The outer side of the connecting column (10) is rotatably connected with a limiting frame (11).

4. The round steel sling according to claim 3, characterized in that, At the top of the limiting frame (11), there is fixedly connected a fixed frame (3). At the bottom left of the fixed frame (3), there are fixedly connected front and rear opposite limiting sleeves (4).

5. The round steel sling according to claim 4, characterized in that, At the rear end of the rear limiting sleeve (4), there is fixedly connected a first motor (5). The output end of the first motor (5) is fixedly connected with a worm (6).

6. The round steel sling according to claim 5, characterized in that, On the right side of the worm (6), there is meshed a worm gear (13). At the top of the worm gear (13), there is fixedly connected a driving gear (7).

7. The round steel sling according to claim 6, characterized in that, On the right side of the driving gear (7), there is meshed a driven gear (8). On the right side of the driven gear (8), there is meshed a toothed ring (9).

8. A round steel sling according to claim 7, characterized in that, Inside the toothed ring (9), there is fixedly connected a connecting column (10). The connecting column (10) is fixedly connected with the receiving frame (12).

9. The round steel sling according to claim 3, characterized in that, The limiting frame (11) is rotatably connected with the worm gear (13), the limiting frame (11) is engaged with the driving gear (7), and the limiting frame (11) is snap-fitted with the toothed ring (9).

10. A round steel sling according to claim 4, characterized in that, On the outer side of the top of the fixed frame (3), there are fixedly connected evenly distributed pulleys (2). Inside the pulleys (2), there is provided a sling (1).

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