A municipal pipe hoisting clamp

Abstract

The utility model discloses a municipal administration pipeline hoist clamp, including the seat of hoist, first connecting arm, second connecting arm, clamping piece, support rod, fixed block etc. The seat of hoist is hinged with first connecting arm through first fixed axle, and first connecting arm is hinged with second connecting arm through second fixed axle, and second connecting arm is hinged with each other through third fixed axle and forms linkage structure, and its other end is fixedly connected with clamping piece. Clamping piece is connected with each other through fourth fixed axle, and the bottom is equipped with fixed bolt and second fixed block and can detachable connection. Support rod is connected with fourth fixed axle through support block, and is equipped with limit block and adjustable nut on it, is used for adjusting the clamping force. First fixed block is fixed with support rod through connecting block, is used for the supplementary support pipeline. The utility model can adjust the clamping range and clamping force according to the pipeline diameter and material, avoids the pipeline to slip, is applicable to the hoist operation of a variety of municipal administration pipelines.

Description

Technical Field

[0001] This utility model relates to the technical field of municipal engineering construction equipment. Specifically, it relates to a municipal pipeline hoisting clamp. Background Technology

[0002] Pipeline hoisting is a common operation in municipal road construction, especially for the installation of rainwater pipes, sewage pipes, power conduits, communication pipes, and water supply pipes. Existing pipe hoisting clamps are mostly fixed structures, unable to be flexibly adjusted to different pipe diameters, resulting in poor adaptability. Furthermore, different pipe materials, such as fiberglass cable protection pipes and HDPE pipes, have significantly different pressure-bearing capacities, making it difficult for the same clamp to prevent slippage while also not exceeding the pipe's allowable radial pressure. Therefore, there is an urgent need for a hoisting clamp that is simple in structure, easy to operate, safe and reliable, and adaptable to different pipe diameters and materials to improve the efficiency and safety of hoisting operations. Utility Model Content

[0003] The present invention aims to provide a municipal pipeline hoisting clamp to solve the problems of existing hoisting clamps being unable to adapt to different pipe diameters and materials, and the easy deformation and slippage of pipes.

[0004] The technical solution of this utility model is as follows: A municipal pipeline hoisting clamp includes: a lifting base with a lifting ring at the top, and through holes for installing a first fixed shaft on both sides of the lifting base; a first connecting arm, the upper end of which is hinged to the through holes on both sides of the lifting base via the first fixed shaft, and the lower end of which has a shaft hole adapted to a second fixed shaft; a second connecting arm, one end of which is hinged to the shaft hole at the lower end of the first connecting arm via the second fixed shaft, and the middle part of which is hinged to other second connecting arms via a third fixed shaft to form a structure that can be opened and closed in linkage, and the other end of which is fixedly connected to a clamping piece; and a clamping piece, the upper part of which has a shaft hole and is connected to other clamping pieces on the same side via a fourth fixed shaft, and the bottom of which has a... The system includes: bolt holes for detachable connection to the second fixing block via bolts; a support block connected to the fourth fixing shaft via a bushing; a support rod, which is an externally threaded rod connected to the support block via a bushing, with a limiting block on one side to prevent axial displacement and a fixed connection to the first connecting block on the other side; a first fixing nut and a second fixing nut on the rod body, installed in an opposing manner; a first connecting block fixedly connected to the second connecting block via a fixing rod; and a second connecting block fixedly connected to the first fixing block at its bottom, wherein the first fixing block is an arc-shaped plate structure with an inner wall curvature adapted to the outer wall of the pipe to be hoisted.

[0005] Preferably, the diameters of the shaft holes at both ends of the first connecting arm are adapted to the outer diameters of the first fixed shaft and the second fixed shaft, respectively, and the first connecting arm rotates around the first fixed shaft and the second fixed shaft.

[0006] Preferably, the support block has a shaft hole in the middle that matches the fourth fixed axis, and a shaft hole on the side that matches the support rod. The support block rotates around the fourth fixed axis, and the support rod moves with the support block to adjust its length.

[0007] Preferably, a plurality of support blocks are connected to the fourth fixed shaft, and the support blocks are equidistantly distributed along the axial direction of the fourth fixed shaft.

[0008] Preferably, the surface of the second fixing block that contacts the pipe to be hoisted is provided with friction texture to prevent the pipe from sliding in the front-to-back direction.

[0009] Beneficial effects: This utility model forms a linkage structure through the hinge of the third fixed shaft in the middle of the second connecting arm, allowing multiple clamping plates to open and close synchronously, thus achieving clamping of pipes of different diameters. The support rod is connected to the fourth fixed shaft through the support block. The extension length of the support rod can be adjusted using the threaded rod body and the fixing nuts installed at the top, thereby achieving stable clamping of the pipe and preventing slippage due to insufficient clamping force. The second fixed block and the clamping plates are detachably connected by fixing bolts, facilitating the replacement of clamping blocks with different friction textures or hardness according to the pipe material, effectively enhancing anti-slip performance and preventing the pipe from sliding in the front-to-back direction. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0011] Figure 2 This is a schematic diagram of the structure of an embodiment of this application;

[0012] Figure 3 for Figure 2 The main view;

[0013] Figure 4 for Figure 2 The left view;

[0014] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A;

[0015] In the diagram: 1. Lifting ring; 2. Lifting seat; 3. First connecting arm; 4. Second connecting arm; 5. First fixed shaft; 6. Second fixed shaft; 7. Third fixed shaft; 8. Fourth fixed shaft; 9. Fixed rod; 10. Limiting block; 11. Support rod; 12. Support block; 13. First fixed block; 14. Pipe; 15. Second fixed block; 16. Fixing bolt; 17. First connecting block; 18. First fixing nut; 19. Second fixing nut; 20. Second connecting block; 21. Clamping plate. Detailed Implementation

[0016] To make the purpose, technical solution, and advantages of this utility model clearer, the following is in conjunction with the appendix. Figure 1-5 The present invention provides a more detailed description of a municipal pipeline hoisting clamp. It should be noted that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0017] Please see Figure 1-5 This utility model provides a municipal pipeline hoisting clamp, including a hoisting base 2, a first connecting arm 3, a second connecting arm 4, a first fixing block 13, and a second fixing block 15. The top of the hoisting base 2 is provided with a lifting ring 1, and the two sides of the hoisting base 2 are hinged to the first connecting arm 3 through a first fixing shaft 5. The upper end of the first connecting arm 3 is hinged to the hanger 2 via the first fixed shaft 5, and the lower end is hinged to the second connecting arm 4 via the second fixed shaft 6. The middle part of the second connecting arm 4 is hinged to each other via the third fixed shaft 7. The other end of the second connecting arm 4 is provided with a clamp 21. The clamp 21 is connected to another clamp 21 on the same side via the fourth fixed shaft 8. The bottom of the clamp 21 is connected to the second fixed block 15 via the fixing bolt 16. The fourth fixed shaft 8 is provided with multiple support blocks 12. The support blocks 12 are connected to the support rod 11 via bushings. The support rod 11 is provided with a limit block 10 on one side and a first connecting block 17 on the other side. The support rod 11 is provided with threads. The first fixing nut 18 and the second fixing block nut 19 are fitted onto the threads of the support rod 11 in an opposing manner to fix the support rod 11 to the support block 12. The first connecting block 17 is connected to the second connecting block 20 via the fixing rod 9. The bottom of the second connecting block 20 is connected to the first fixed block 13.

[0018] In this embodiment, the lifting ring 1 is a closed-loop metal component, and its lower end is fixed to the top of the lifting base 2 by welding. The lifting ring 1 cooperates with external lifting equipment to realize the transmission of lifting force. Cylindrical through holes are symmetrically opened on both sides of the lifting base 2. The diameter of the through holes matches the outer diameter of the first fixed shaft 5. The first fixed shaft 5 and the first connecting arm 3 form a hinge engagement to ensure that the first connecting arm 3 can rotate flexibly around the first fixed shaft 5.

[0019] The first connecting arm 3 has cylindrical shaft holes at both ends, and the diameter of the shaft holes is adapted to the outer diameter of the first fixed shaft 5 and the second fixed shaft 6 respectively. The upper end of the first connecting arm 3 is hinged to the through holes on both sides of the hanging base 2 through the first fixed shaft 5, and the lower end of the first connecting arm 3 is hinged to one end of the second connecting arm 4 through the second fixed shaft 6, so as to realize the linkage between the two connecting arms.

[0020] One end of the second connecting arm 4 has a shaft hole adapted to the second fixed shaft 6 for hinge connection with the first connecting arm 3. The middle part of the second connecting arm 4 has another shaft hole, which is connected to the other second connecting arms 4 through the third fixed shaft 7 to form an openable linkage structure. By adjusting the rotation angle of each second connecting arm 4 around the third fixed shaft 7, the opening and closing range of the clamp 21 can be changed synchronously. The other end of the second connecting arm 4 is fixedly connected to the clamp 21 by welding.

[0021] The upper part of the clamping piece 21 has a cylindrical shaft hole, the diameter of which matches the outer diameter of the fourth fixed shaft 8. The clamping piece 21 on the same side is connected to the fourth fixed shaft 8 to form a bushing. Multiple clamping pieces 21 are combined through the fourth fixed shaft 8 to form a clamping unit surrounding the pipe 14. Multiple threaded holes are evenly provided at the bottom of the clamping piece 21. The specifications of the threaded holes are adapted to the fixing bolt 16. The fixing bolt 16 is connected to the second fixing block 15 in a detachable manner, which makes it easy to replace the second fixing block 15 according to the material or diameter of the pipe 14. The surface of the second fixing block 15 that contacts the pipe 14 is provided with friction texture to increase the friction with the outer wall of the pipe 14 and prevent the pipe 14 from slipping in the front and back direction during hoisting.

[0022] Multiple support blocks 12 are connected to the fourth fixed shaft 8 via bushings. Each support block 12 has a shaft hole in its center that matches the fourth fixed shaft 8, allowing it to rotate around the fourth fixed shaft 8. The side of each support block 12 has a shaft hole that matches a support rod 11, and these holes are connected to the support rod 11 via bushings, allowing the support rod 11 to adjust its angle around the support block 12. The support rod 11 is an externally threaded metal rod. One side of the support rod 11 is fixed with a limit block 10 welded on it. The limit block 10 restricts the axial displacement of the support rod 11 within the shaft hole of the support block 12, preventing the support rod 11 from slipping. The other side of the support rod 11 is fixed with a first connecting block 17 welded on it. A first fixing nut 18 and a second fixing nut 19 are fitted onto the support rod 11. The two nuts are locked in place by a mating mechanism. By adjusting the position of the two nuts, the length of the support rod 11 extending beyond the support block 12 can be changed, thereby adjusting the clamping force and preventing irreversible deformation of the pipe 14 due to excessive clamping force.

[0023] The first connecting block 17 is connected to the second connecting block 20 via the fixing rod 9. The bottom of the second connecting block 20 is fixedly connected to the first fixing block 13 by welding. The inner wall curvature of the first fixing block 13 is adapted to the outer wall of the pipe 14 to assist in fitting the pipe 14, further enhancing the clamping stability and preventing the pipe 14 from shaking during hoisting.

[0024] Working principle: During the municipal pipeline hoisting operation, according to the actual diameter of the pipeline 14, the rotation angle of multiple second connecting arms 4 around the third fixed axis 7 is adjusted so that the clamping plate 21 drives the second fixed block 15 to fit against the bottom outer wall of the pipeline 14. The first fixed nut 18 and the second fixed nut 19 are rotated, and the length of the support rod 11 extending out of the support block 12 is adjusted by the external thread of the support rod 11 so that the first fixed block 13 presses against the outer wall of the pipeline 14. After the adjustment is completed, the two nuts are tightened against each other to lock the position of the support rod 11 and prevent loosening.

[0025] Start the external hoisting equipment and connect the equipment hook to the lifting ring 1. The hoisting force is transmitted to the lifting base 2 through the lifting ring 1, and then to the clamp 21 through the first connecting arm 3 and the second connecting arm 4. The clamping force of the clamp 21 and the second fixing block 15, the auxiliary support force of the first fixing block 13, and the friction force of the rough surface of the second fixing block 15 work together to stably lift the pipe 14.

[0026] When it is necessary to replace pipes 14 with different diameters or materials, there is no need to disassemble the entire clamp. Simply loosen the first fixing nut 18 and the second fixing nut 19, adjust the length of the support rod 11 and the opening angle of the second connecting arm 4, and the new pipe 14 can be refitted. For pipes with different pressure bearing capacities, the tightening force of the support rod 11 can be finely adjusted to prevent irreversible elliptical deformation of the pipe 14. When it is necessary to lift pipes 14 with different friction forces, the fixing bolts 16 can be removed and the second fixing block 15 with different materials, different friction textures or different lengths can be replaced to achieve anti-slip lifting in the front and rear directions.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A municipal pipeline hoisting clamp, characterized in that, include: The hanging base (2) has a lifting ring (1) on its top and through holes on both sides for installing the first fixed shaft (5); the first connecting arm (3) has its upper end hinged to the through holes on both sides of the hanging base (2) through the first fixed shaft (5), and its lower end has a shaft hole adapted to the second fixed shaft (6); the second connecting arm (4) has one end hinged to the shaft hole at the lower end of the first connecting arm (3) through the second fixed shaft (6), and its middle part hinged to other second connecting arms (4) through the third fixed shaft (7) to form a structure that can be opened and closed in linkage, and its other end is fixedly connected to the clamp (21); the clamp (21) has a shaft hole on its upper part, which is connected to other clamps (21) on the same side through the fourth fixed shaft (8), and a bolt hole on its bottom, which is connected to the second fixing block (15) through the fixing bolt (16). Detachable connection; support block (12), connected to the fourth fixed shaft (8) through a bushing; support rod (11), which is an external threaded rod, connected to the support block (12) through a bushing, with a limiting block (10) on one side to prevent its own axial displacement, and fixedly connected to the first connecting block (17) on the other side, with a first fixing nut (18) and a second fixing nut (19) on the rod body, and the first fixing nut (18) and the second fixing nut (19) are installed in an opposing manner; the first connecting block (17) is fixedly connected to the second connecting block (20) through a fixing rod (9); the bottom of the second connecting block (20) is fixedly connected to the first fixing block (13), and the first fixing block (13) is an arc-shaped plate structure, the curvature of its inner wall is adapted to the outer wall of the pipe (14) to be hoisted.

2. A municipal pipeline hoisting clamp according to claim 1, characterized in that, The diameters of the shaft holes at both ends of the first connecting arm (3) are adapted to the outer diameters of the first fixed shaft (5) and the second fixed shaft (6), respectively, and the first connecting arm (3) rotates around the first fixed shaft (5) and the second fixed shaft (6).

3. A municipal pipeline hoisting clamp according to claim 1, characterized in that, The support block (12) has a shaft hole in the middle that is adapted to the fourth fixed shaft (8) and a shaft hole on the side that is adapted to the support rod (11). The support block (12) rotates around the fourth fixed shaft (8) and the support rod (11) moves on the support block (12) to adjust its length.

4. A municipal pipeline hoisting clamp according to claim 1, characterized in that, Multiple support blocks (12) are connected to the fourth fixed shaft (8), and the support blocks (12) are equidistantly distributed along the axial direction of the fourth fixed shaft (8).

5. A municipal pipeline hoisting clamp according to claim 1, characterized in that, The surface of the second fixing block (15) that contacts the pipe (14) to be hoisted is provided with friction texture to prevent the pipe (14) from sliding in the front and back directions.

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