Hoisting tool

Abstract

The utility model belongs to the technical field of hoisting tools, and particularly relates to a hoisting tool which comprises a rectangular main rod, first grooves are formed in the front side and the rear side of the rectangular main rod respectively, a first U-shaped plate is arranged on the surface of the rectangular main rod in an attached mode, and sliding blocks are fixedly connected to the front side and the rear side of the inner wall of the first U-shaped plate respectively. The bottom of the first U-shaped plate is fixedly connected with a threaded column. According to the hoisting tool, the rectangular main rod, the first grooves, the first U-shaped plates, the sliding blocks, the threaded columns, the hollow supporting rods, the second grooves, the third grooves, the locking columns, the hollow plates and the nuts are matched, so that the hollow supporting rods and the rectangular main rod can be disassembled and assembled; and the positions and the number of the hollow supporting rods on the hoisting tool can be adjusted according to the steel pipes with different diameters, so that the application range of the hoisting tool is effectively widened.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting tooling technology, and specifically relates to a hoisting tooling. Background Technology

[0002] Currently, when steel pipes undergo heat treatment, they are typically first fixed to a hoisting fixture. Then, the steel pipe is lifted from the hoisting fixture into a heating furnace using hoisting equipment, where it is heated by the high temperature inside the furnace. Existing hoisting fixtures mainly consist of a lifting ring, chain, main rod, support rod, positioning ring, and positioning rod. When the positioning rod is inserted into the positioning ring, the steel pipe is fixed to the hoisting fixture through the cooperation of the positioning rod, positioning ring, and support rod. The hoisting fixture can be connected to the hoisting equipment via the lifting ring. For example, a steel pipe heat treatment tempering hoisting fixture is disclosed in Chinese Patent Publication No. CN213013008U. However, because the number and position of the support rods on the hoisting fixture are fixed, they cannot be adjusted according to steel pipes of different diameters, thus limiting the scope of application of the hoisting fixture. Utility Model Content

[0003] The purpose of this utility model is to provide a lifting fixture that solves the problem that the number and position of the support rods on the lifting fixture are fixed, making it impossible to adjust for steel pipes of different diameters, thus resulting in a limited range of applications for the lifting fixture.

[0004] The specific technical solution adopted by this utility model is as follows:

[0005] A hoisting fixture includes a rectangular main rod. First grooves are formed on both the front and rear sides of the rectangular main rod. A first U-shaped plate is fitted onto the surface of the rectangular main rod. Slider blocks are fixedly connected to both the front and rear sides of the inner wall of the first U-shaped plate. A threaded post is fixedly connected to the bottom of the first U-shaped plate. A hollow support rod is fixedly connected to the surface of the threaded post. A rectangular positioning ring is fixedly connected to the bottom of the hollow support rod. A positioning post is fitted onto the inner wall of the rectangular positioning ring. Second grooves are formed on both the front and rear sides of the first U-shaped plate. A third groove is provided on both the front and rear sides. Locking posts are fitted to the inner walls of the second and third grooves. A hollow plate is fixedly connected to the bottom of the locking post. The inner wall of the hollow plate is fitted to the surface of the threaded post. A nut is fitted to the bottom of the hollow plate. The inner wall of the nut is threaded to the surface of the threaded post. A lower connecting block is fixedly connected to the upper surface of the rectangular main rod. A steel cable is fixedly connected to the inner wall of the lower connecting block. An upper connecting block is fixedly connected to the surface of the steel cable. A lifting ring is fixedly connected to the upper surface of the upper connecting block.

[0006] The present invention is further configured such that springs are fixedly connected to the upper surface of the hollow plate and the bottom of the first U-shaped plate, and the elastic force of the springs is greater than the sum of the weight of the hollow plate and the locking post.

[0007] The present invention is further configured such that a strip-shaped airbag is bonded to the bottom of the positioning post, and a strip-shaped post is bonded to the bottom of the strip-shaped airbag, and the surfaces of the strip-shaped post and the strip-shaped airbag are both in contact with the inner wall of the rectangular positioning ring.

[0008] The present invention is further configured such that a limit bracket is fixedly connected to the surface of the threaded column.

[0009] The present invention is further configured such that the limiting bracket includes a hollow square column, a second U-shaped plate, a cylinder, a limiting post, and a spring piece. The inner wall of the hollow square column is fixedly connected to the surface of the threaded column. The front and rear sides of the hollow square column are fixedly connected to the surface of the second U-shaped plate. The left and right sides of the cylinder are fixedly connected to the inner wall of the second U-shaped plate. The surface of the cylinder is rotatably connected to the inner wall of the limiting post. The front and rear sides of the hollow square column and the surface of the limiting post are fixedly connected to the surface of the spring piece.

[0010] The present invention is further configured such that positioning plates are fixedly connected to both the left and right sides of the positioning column, and third U-shaped plates are fixedly connected to both the left and right sides of the strip column, with the inner wall of the third U-shaped plate fitting against the surface of the positioning plate.

[0011] The technical effects achieved by this utility model are as follows:

[0012] This utility model discloses a hoisting fixture that, through the cooperation of a rectangular main rod, a first groove, a first U-shaped plate, a slider, a threaded column, a hollow support rod, a second groove, a third groove, a locking column, a hollow plate, and a nut, allows for the disassembly and assembly of the hollow support rod and the rectangular main rod. Furthermore, because multiple third grooves are equidistantly arranged on the rectangular main rod, the position and number of the hollow support rods on the hoisting fixture can be adjusted according to steel pipes of different diameters, thereby effectively improving the application range of the hoisting fixture.

[0013] This utility model discloses a hoisting fixture that uses the pressure of a steel pipe on a positioning column to ensure close contact between the strip-shaped airbag below the positioning column and the rectangular positioning ring. The friction between the strip-shaped airbag and the rectangular positioning ring prevents the positioning column from sliding within the rectangular positioning ring when hoisting the steel pipe. Simultaneously, the cooperation of the hollow square column, the second U-shaped plate, the cylinder, and the spring sheet ensures that after the hollow support rod is inserted into the steel pipe, the limiting column makes close contact with the inner wall of the steel pipe. Furthermore, the elasticity of the spring sheet prevents the steel pipe from swaying horizontally on the positioning column when hoisting the steel pipe. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0015] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 This is a front view of the structure of this utility model;

[0017] Figure 4 yes Figure 3 Enlarged view at point B in the middle;

[0018] Figure 5 yes Figure 3 Sectional view at CC;

[0019] Figure 6 yes Figure 5 Enlarged view at point D;

[0020] Figure 7 yes Figure 5 Enlarged view at point E in the middle;

[0021] Figure 8 This is a front view of the rectangular main rod in this utility model;

[0022] Figure 9 This is a schematic diagram of the first U-shaped plate in this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Rectangular main rod; 2. First groove; 3. First U-shaped plate; 4. Slider; 5. Threaded column; 6. Hollow support rod; 7. Rectangular positioning ring; 8. Positioning column; 9. Second groove; 10. Third groove; 11. Locking column; 12. Hollow plate; 13. Nut; 14. Lower connecting block; 15. Steel cable; 16. Upper connecting block; 17. Lifting ring; 18. Spring; 19. Strip-shaped airbag; 20. Strip-shaped column; 21. Limiting bracket; 211. Hollow square column; 212. Second U-shaped plate; 213. Cylindrical column; 214. Limiting column; 215. Spring piece; 22. Positioning plate; 23. Third U-shaped plate. Detailed Implementation

[0025] 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.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] like Figures 1 to 9 As shown, a hoisting fixture includes a rectangular main rod 1. First grooves 2 are formed on both the front and rear sides of the rectangular main rod 1. A first U-shaped plate 3 is fitted onto the surface of the rectangular main rod 1. Slider blocks 4 are fixedly connected to both the front and rear sides of the inner wall of the first U-shaped plate 3. A threaded post 5 is fixedly connected to the bottom of the first U-shaped plate 3. A hollow support rod 6 is fixedly connected to the surface of the threaded post 5. A rectangular positioning ring 7 is fixedly connected to the bottom of the hollow support rod 6. A positioning post 8 is fitted onto the inner wall of the rectangular positioning ring 7. Second grooves 9 are formed on both the front and rear sides of the first U-shaped plate 3. Third grooves 10 are formed on both the front and rear sides of the rectangular main rod 1. The inner walls of the second groove 9 and the third groove 10 are fitted onto... A locking post 11 is provided, and a hollow plate 12 is fixedly connected to the bottom of the locking post 11. The inner wall of the hollow plate 12 is in contact with the surface of the threaded post 5. A nut 13 is attached to the bottom of the hollow plate 12, and the inner wall of the nut 13 is threadedly connected to the surface of the threaded post 5. A lower connecting block 14 is fixedly connected to the upper surface of the rectangular main rod 1. A steel cable 15 is fixedly connected to the inner wall of the lower connecting block 14. An upper connecting block 16 is fixedly connected to the surface of the steel cable 15. A lifting ring 17 is fixedly connected to the upper surface of the upper connecting block 16. Springs 18 are fixedly connected to the upper surface of the hollow plate 12 and the bottom of the first U-shaped plate 3. The elastic force of the springs 18 is greater than the sum of the weights of the hollow plate 12 and the locking post 11.

[0028] It should be noted that, through the cooperation of the first groove 2 and the slider 4, the first U-shaped plate 3, after contacting the rectangular main rod 1, can only move horizontally on the rectangular main rod 1. When both the second groove 9 and the third groove 10 are in contact with the locking post 11, the cooperation of the second groove 9, the third groove 10, and the locking post 11 prevents the first U-shaped plate 3 from moving horizontally on the rectangular main rod 1. When both the second groove 9 and the third groove 10 are separated from the locking post 11, the first U-shaped plate 3 can slide on the rectangular main rod 1 or interact with the rectangular main rod 1. When the main rod 1 is separated, and the distance between the nut 13 and the hollow support rod 6 is at its maximum, the locking pin 11 can be fixed in the second groove 9 and the third groove 10 through the cooperation of the nut 13 and the threaded pin 5. When the distance between the nut 13 and the hollow support rod 6 is at its minimum, the second groove 9 and the third groove 10 are separated from the locking pin 11. When the user inserts the locking pin 11 into the second groove 9 and the third groove 10, the pulling force of the spring 18 on the hollow plate 12 can prevent the locking pin 11 from falling out of the second groove 9 and the third groove 10.

[0029] like Figures 1 to 7As shown, a strip-shaped airbag 19 is bonded to the bottom of the positioning post 8, and a strip-shaped post 20 is bonded to the bottom of the strip-shaped airbag 19. The surfaces of the strip-shaped post 20 and the strip-shaped airbag 19 are both in contact with the inner wall of the rectangular positioning ring 7. Positioning plates 22 are fixedly connected to both the left and right sides of the positioning post 8, and third U-shaped plates 23 are fixedly connected to both the left and right sides of the strip-shaped post 20. The inner wall of the third U-shaped plate 23 is in contact with the surface of the positioning plate 22.

[0030] It should be noted that the pressure exerted by the steel pipe on the positioning column 8 can make the strip-shaped airbag 19 below the positioning column 8 in close contact with the rectangular positioning ring 7. The friction between the strip-shaped airbag 19 and the rectangular positioning ring 7 makes it difficult for the positioning column 8 to slide inside the rectangular positioning ring 7 when the hoisting fixture is hoisting the steel pipe. At the same time, the positioning column 8 can be aligned with the strip column 20 through the cooperation of the positioning plate 22 and the third U-shaped plate 23.

[0031] like Figures 1 to 5 As shown, a limiting bracket 21 is fixedly connected to the surface of the threaded column 5. The limiting bracket 21 includes a hollow square column 211, a second U-shaped plate 212, a cylinder 213, a limiting column 214, and a spring piece 215. The inner wall of the hollow square column 211 is fixedly connected to the surface of the threaded column 5. The front and rear sides of the hollow square column 211 are fixedly connected to the surface of the second U-shaped plate 212. The left and right sides of the cylinder 213 are fixedly connected to the inner wall of the second U-shaped plate 212. The surface of the cylinder 213 is rotatably connected to the inner wall of the limiting column 214. The front and rear sides of the hollow square column 211 and the surface of the limiting column 214 are fixedly connected to the surface of the spring piece 215.

[0032] It should be noted that, through the cooperation of the hollow square column 211, the second U-shaped plate 212, the cylindrical column 213 and the spring piece 215, after the hollow support rod 6 is inserted into the steel pipe, the limiting column 214 can make close contact with the inner wall of the steel pipe, and through the elastic force of the spring piece 215, the steel pipe is not easy to sway horizontally on the positioning column 8 when the hoisting tool is hoisting it.

[0033] The working principle of this utility model is as follows: First, the positioning column 8 is pulled out from the rectangular positioning ring 7. Then, the hollow support rod 6 is inserted into the steel pipe, and the positioning column 8 is inserted into the rectangular positioning ring 7. At this time, the steel pipe is fixed on the hoisting fixture by the cooperation of the positioning column 8, the rectangular positioning ring 7 and the hollow support rod 6. Then, the hook on the hoisting equipment is connected to the lifting ring 17, and the hoisting fixture is moved by the hoisting equipment.

[0034] Meanwhile, the pressure of the steel pipe on the positioning column 8 allows the strip-shaped airbag 19 below the positioning column 8 to make close contact with the rectangular positioning ring 7. The friction between the strip-shaped airbag 19 and the rectangular positioning ring 7 prevents the positioning column 8 from sliding inside the rectangular positioning ring 7 when the hoisting fixture is hoisting the steel pipe. Furthermore, through the cooperation of the hollow square column 211, the second U-shaped plate 212, the cylinder 213, and the spring piece 215, the limiting column 214 can make close contact with the inner wall of the steel pipe after the hollow support rod 6 is inserted into the steel pipe. The elasticity of the spring piece 215 prevents the steel pipe from swaying horizontally on the positioning column 8 when the hoisting fixture is hoisting the steel pipe.

[0035] Once the hoisting fixture has been moved to the appropriate position, the steel pipe can be separated from the hoisting fixture by removing the positioning column 8 from the rectangular positioning ring 7.

[0036] When it is necessary to adjust the number and position of the hollow support rods 6 on the hoisting fixture, first, rotate the nut 13 to make the nut 13 contact the hollow support rod 6. Then, move the hollow plate 12 downward to move the locking pin 11 out of the first groove 2 and the second groove 9. Move the first U-shaped plate 3 to a suitable position or separate it from the rectangular main rod 1 by moving the hollow plate 12 horizontally. When the first U-shaped plate 3 is moved to a suitable position, the spring 18 pulls on the hollow plate 12 to prevent the locking pin 11 inserted into the second groove 9 and the third groove 10 from falling out of the second groove 9 and the third groove 10. Then, rotate the nut 13 to make the distance between the nut 13 and the hollow support rod 6 reach the maximum value. Through the cooperation of the nut 13 and the threaded pin 5, the locking pin 11 is fixed in the first groove 2 and the second groove 9. At this time, through the cooperation of the first groove 2, the slider 4, the U-shaped plate, the second groove 9, the third groove 10 and the locking pin 11, the hollow support rod 6 can be fixed in a suitable position.

[0037] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A hoisting fixture, characterized in that: The structure includes a rectangular main rod (1), with first grooves (2) on both the front and rear sides of the rectangular main rod (1). A first U-shaped plate (3) is attached to the surface of the rectangular main rod (1). Slider blocks (4) are fixedly connected to both the front and rear sides of the inner wall of the first U-shaped plate (3). A threaded column (5) is fixedly connected to the bottom of the first U-shaped plate (3). A hollow support rod (6) is fixedly connected to the surface of the threaded column (5). A rectangular positioning ring (7) is fixedly connected to the bottom of the hollow support rod (6). A positioning post (8) is attached to the inner wall of the rectangular positioning ring (7). A second groove (9) is provided on both the front and rear sides of the first U-shaped plate (3). A third groove (10) is provided on both the front and rear sides of the rectangular main rod (1). Locking posts (11) are fitted together on the inner walls of the second groove (9) and the third groove (10). A hollow plate (12) is fixedly connected to the bottom of the locking post (11). The inner wall of the hollow plate (12) is fitted together with the surface of the threaded post (5). A nut (13) is fitted together with the bottom of the hollow plate (12). The inner wall of the nut (13) is threadedly connected to the surface of the threaded post (5). A lower connecting block (14) is fixedly connected to the upper surface of the rectangular main rod (1). A steel cable (15) is fixedly connected to the inner wall of the lower connecting block (14). An upper connecting block (16) is fixedly connected to the surface of the steel cable (15). A lifting ring (17) is fixedly connected to the upper surface of the upper connecting block (16).

2. The hoisting fixture according to claim 1, characterized in that: Springs (18) are fixedly connected to the upper surface of the hollow plate (12) and the bottom of the first U-shaped plate (3). The elastic force of the springs (18) is greater than the sum of the weight of the hollow plate (12) and the locking post (11).

3. The hoisting fixture according to claim 1, characterized in that: The bottom of the positioning post (8) is bonded with a strip-shaped airbag (19), and the bottom of the strip-shaped airbag (19) is bonded with a strip-shaped post (20). The surfaces of the strip-shaped post (20) and the strip-shaped airbag (19) are both in contact with the inner wall of the rectangular positioning ring (7).

4. The hoisting fixture according to claim 1, characterized in that: The threaded column (5) is fixedly connected to a limit bracket (21).

5. A hoisting fixture according to claim 4, characterized in that: The limiting bracket (21) includes a hollow square column (211), a second U-shaped plate (212), a cylinder (213), a limiting column (214), and a spring piece (215). The inner wall of the hollow square column (211) is fixedly connected to the surface of the threaded column (5). The front and rear sides of the hollow square column (211) are fixedly connected to the surface of the second U-shaped plate (212). The left and right sides of the cylinder (213) are fixedly connected to the inner wall of the second U-shaped plate (212). The surface of the cylinder (213) is rotatably connected to the inner wall of the limiting column (214). The front and rear sides of the hollow square column (211) and the surface of the limiting column (214) are fixedly connected to the surface of the spring piece (215).

6. A hoisting fixture according to claim 3, characterized in that: Positioning plates (22) are fixedly connected to both sides of the positioning column (8), and third U-shaped plates (23) are fixedly connected to both sides of the strip column (20). The inner wall of the third U-shaped plate (23) is in contact with the surface of the positioning plate (22).

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