Pipeline clamp

Abstract

The utility model discloses a pipeline clamp, which relates to the technical field of pipeline clamps, and comprises a connecting piece and clamping arms at two ends of the connecting piece, clamping arc ports are arranged on the clamping arms, stroke ports are arranged on the clamping arms, the two stroke ports are splayed, a driving threaded hole is arranged in the middle of the connecting piece, and a screw rod is arranged in the driving threaded hole in a matching manner. One end of the screw rod is provided with a rotating rod, the other end of the screw rod is rotatably provided with a pressing arm, two ends of the pressing arm are respectively hinged with the stroke ports, the two clamping arms are provided with connecting rods, a cross beam is arranged between the two connecting rods, the cross beam is provided with a lifting lug, two sides of the pressing arm are provided with pressing blocks, and one side of each pressing block is provided with an arc-shaped pressing port; a connecting seat is arranged on the side wall of one end of the clamping arm, a clamping threaded hole is formed in the connecting seat, a lead screw is arranged in the clamping threaded hole in a matched mode, a clamping block is arranged at one end of the lead screw in a rotating mode, a rotating head is arranged at the other end of the lead screw, and an arc-shaped clamping opening is formed in one side of the clamping block. And the stability during hoisting is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe clamp technology, and in particular to a pipe clamp. Background Technology

[0002] Before connection, pipes need to be beveled at both ends and painted on the outer wall before being hoisted and moved. During hoisting and moving, pipes are prone to slipping, scratching the paint, and falling off, causing damage to the surface of the workpiece and affecting the quality of the parts.

[0003] A utility model patent with publication number CN203359780U discloses a lifting fixture for precision-machined shaft workpieces, including an auxiliary fixing ring. The auxiliary fixing ring has through holes on its side, and there are at least three through holes that are evenly distributed around the periphery of the auxiliary fixing ring. The axis of the through holes intersects with the axis of the auxiliary fixing ring, and bolts are installed in the through holes.

[0004] In the above technical solution, the precision-machined shaft workpiece is held in place by bolts, resulting in a small contact area with the workpiece. This allows for stable clamping of the precision-machined shaft workpiece and minimizes the risk of scratching the workpiece surface. However, the size of the auxiliary fixing ring cannot be adjusted, making it unsuitable for precision-machined shaft workpieces of different sizes. Furthermore, the connection between the steel wire rope and the clamp during hoisting makes it prone to swaying, which is detrimental to assembly.

[0005] Therefore, there is an urgent need for a pipe clamp that can accommodate the hoisting of pipes with different diameters, thereby improving the applicability of the clamp. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a pipe clamp that solves the problem that the clamping radius of existing clamps is fixed and cannot be adjusted, making it impossible for the clamps to clamp and lift pipes of various diameters.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0008] A pipe clamp includes a connector and clamping arms symmetrically hinged to both ends of the connector. Each clamping arm has a clamping arc-shaped opening and a travel opening, the two travel openings forming a figure-eight shape. A drive threaded hole is formed in the middle of the connector, and a screw is fitted into the drive threaded hole. One end of the screw has a rotating rod perpendicular to its axis, and the other end of the screw has a rotatable pressure arm. Both ends of the pressure arm are hinged to the travel openings. Connecting rods are hinged to the two clamping arms, and a crossbeam is hinged between the two connecting rods. A lifting lug is provided on the crossbeam. The clamping arm is characterized by having pressure blocks on both sides, with an arc-shaped pressure opening on the side of each pressure block closest to the clamping pipe.

[0009] The clamping arm is provided with a clamping mechanism on the side wall of one end below the pressure arm. The clamping mechanism includes a connecting seat with a clamping threaded hole. A screw is fitted in the clamping threaded hole. A clamping block is rotatably provided at one end of the screw, and a rotating head is provided at the other end of the screw. An arc-shaped clamping opening is provided on one side of the clamping block. The clamping block and the pressure block are located at the vertex of a virtual isosceles triangle.

[0010] Furthermore, the connecting seat has guide holes on both sides of the clamping threaded hole, and a guide rod is provided in the guide hole, with one end of the guide rod connected to the clamping block.

[0011] Furthermore, the distance between the connector and the crossbeam is greater than the length of the travel opening.

[0012] Furthermore, the distance between the connecting seat and the inner wall of the clamping arc is greater than the thickness of the clamping block.

[0013] Furthermore, the clamping block is provided with a rubber pad on the arc-shaped clamping opening.

[0014] Furthermore, a rotating disk is provided at one end of the lead screw near the rotating head.

[0015] Furthermore, the connecting rod has a clearance opening on the moving path of the screw. The width of the clearance opening is greater than the amount of movement of the screw between the connector and the crossbeam, and the distance between the two clearance openings is greater than the length of the rotating rod.

[0016] Furthermore, the clearance opening is semi-circular.

[0017] In summary, the beneficial technical effects of this utility model are as follows:

[0018] The rotating rod drives the screw to rotate in both directions, which in turn drives the pressure arm to rise and fall along the figure-eight shaped stroke opening. As the pressure arm rises and falls, it is linked to the two clamping arms to rotate around the arc of the connector, thereby changing the clamping radius between the two clamping arms. This allows for the clamping and lifting of pipes of various diameters, improving the applicability of the entire fixture. At the same time, the pressure block and clamping block can further clamp and fix the pipe between the two clamping arms, improving the stability of the pipe during lifting and reducing the chance of the pipe slipping. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 yes Figure 1 A diagram from another angle;

[0021] Figure 3 yes Figure 1 A diagram of the third angle;

[0022] Figure 4 yes Figure 1 Enlarged schematic diagram of part A;

[0023] Figure 5 This is a schematic diagram showing the position of the clamping block and clamping arm in another state.

[0024] Reference numerals: 1. Connector; 2. Clamping arm; 3. Screw; 4. Rotating rod; 5. Pressure arm; 6. Connecting rod; 7. Crossbeam; 8. Lifting lug; 9. Clamping arc opening; 10. Stroke opening; 11. Connecting bolt; 12. Pressure block; 13. Arc-shaped pressure opening; 14. Connecting seat; 15. Lead screw; 16. Clamping block; 17. Rubber pad; 18. Guide rod; 19. Rotating head; 20. Rotating disk; 20. Clearance opening. Detailed Implementation

[0025] The present invention will now be described clearly and completely with reference to the embodiments.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] In the description of the embodiments, unless otherwise expressly specified and limited, the terms "set," "connect," etc., should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or a connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] See appendix Figure 1-5The image shows a pipe clamp, including a connector 1, which has an H-shaped structure. A clamping arm 2 is hinged to each end of the connector 1, and the two clamping arms 2 are symmetrically arranged on the connector 1. Each clamping arm 2 has a clamping arc opening 9, and each clamping arm 2 has a vertically opening stroke opening 10. The two stroke openings 10 are arranged in a V-shape. A drive threaded hole is provided in the middle of the connector 1, and a screw 3 is fitted inside the drive threaded hole. One end of the screw 3 has a rotating rod 4 perpendicular to the axis for rotating the screw 3. The other end of the screw 3 is located between the two clamping arc openings 9 and has a pressure arm 5 rotatably mounted on it. The pressure arm 5 has two ends... The clamping arms 2 are hinged to the travel port 10 via connecting bolts 11. A connecting rod 6 is hinged to each of the two clamping arms 2. A crossbeam 7 is hinged between the ends of the two connecting rods 6. A lifting lug 8 is provided in the middle of the crossbeam 7. In use, the screw 3 is rotated by rotating rod 4. The screw 3 further drives the pressure arm 5 to slide up and down along the travel port 10 arranged in a figure-eight shape. Under the path guidance of the travel port 10, the pressure arm 5 drives the two clamping arms 2 to rotate and open around the arc of the connecting piece 1, thereby changing the clamping radius between the two clamping arms 2. This enables clamping and lifting of pipes of various diameters, further improving the applicability of the clamp.

[0029] Furthermore, pressure blocks 12 are provided on both sides of the pressure arm 5. The side of the pressure block 12 near the pipe clamping part is provided with an arc-shaped pressure port 13. At the same time, a connecting seat 14 is provided on the side wall of the clamping arm 2 located below the pressure arm 5. The connecting seat 14 has a clamping threaded hole, and a screw rod 15 is provided in the clamping threaded hole. A clamping block 16 is rotatably provided at one end of the screw rod 15. The clamping block 16 and the pressure block 12 are located at the vertex of a virtual isosceles triangle. The side of the clamping block 16 near the pipe clamping part is provided with an arc-shaped clamping part, and a rubber pad 17 is glued on the arc-shaped clamping part. During hoisting, the pressure block 12 and the two clamping blocks 16 can further fix the pipe in the clamping arc 9, improve the stability of the pipe during hoisting, and increase the contact area with the pipe by using the arc-shaped pressure port 13 and the arc-shaped clamping part, making the clamping more secure.

[0030] The distance between one side of the connecting seat 14 and the inner wall of the clamping arc 9 is greater than the thickness of the clamping block 16, see Appendix. Figure 5 As mentioned above, during hoisting, the clamping block 16 is adjusted to a position lower than the inner wall of the clamping arc 9 by the screw 15. This can prevent the clamping block 16 from colliding with the pipe when clamping the pipe, especially for large-diameter pipes.

[0031] Furthermore, the connecting seat 14 has guide holes on both sides of the clamping threaded hole, and a guide rod 18 is provided in each guide hole. One end of the guide rod 18 is connected to the clamping block 16. In this way, when the screw 15 is used to control the clamping block 16 to clamp the pipe, the clamping block 16 is prevented from rotating with the screw 15.

[0032] Furthermore, a hexagonal rotating head 19 is provided at one end of the lead screw 15. When adjusting the lead screw 15, a screwdriver bit is mounted on the rotating head 19, and then the screw screw 15 is rotated by driving the screwdriver bit with an electric drill. At the same time, a rotating disk 20 is provided at one end of the lead screw 15 near the rotating head 19. When an electric drill cannot be used on site, the lead screw 15 can be manually adjusted through the rotating disk 20.

[0033] Furthermore, the connecting rod 6 is provided with a clearance opening 20 on the moving path of the screw 3. The width of the clearance opening 20 is greater than the amount of movement of the screw 3 between the connecting piece 1 and the crossbeam 7, and the distance between the two clearance openings 20 is greater than the length of the rotating rod 4. When the screw 3 is adjusted by the rotating rod 4, the clearance opening 20 increases the operating space of the rotating rod 4, allowing the operator to operate the rotating rod 4 more efficiently.

[0034] Finally, the distance between the connector 1 and the crossbeam 7 is greater than the length of the stroke port 10, which ensures that the screw 3 has sufficient lifting space during adjustment, allowing the clamping radius of the clamping arm 2 to be adjusted to the maximum value.

[0035] During hoisting, the rotating head 19 or rotating disk 20 is used to adjust the clamping block 16 to a position where the end face is lower than the inner wall of the clamping arc 9. Then, according to the pipe diameter, the clamping radius of the two clamping arms 2 is adjusted. During adjustment, the rotating rod 4 drives the screw 3 to lift the pressure arm 5 upward along the stroke port 10. During the lifting process, the pressure arm 5, together with the two clamping arms 2, opens outward around the connector 1, so that the distance between the ends of the two clamping arms 2 is greater than the diameter of the pipe. Then, the pipe is placed between the two clamping arms 2. Then, the screw 3 is used to reverse the direction to abut the pressure arm 5 against the outer wall of the pipe. Finally, the screw 15 is used to attach the clamping block 16 to the outer wall of the pipe to achieve clamping and fixing of the pipe. Then, the lifting lug 8 is used in conjunction with the lifting equipment to lift and transfer the pipe.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape and principle of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A pipe clamp, comprising a connector (1) and clamping arms (2) symmetrically hinged at both ends of the connector (1), wherein the clamping arms (2) are provided with clamping arc openings (9) and stroke openings (10), the two stroke openings (10) being in a figure-eight shape; a drive threaded hole is provided in the middle of the connector (1), a screw (3) is fitted in the drive threaded hole, a rotating rod (4) is provided at one end of the screw (3) perpendicular to the axial direction, and a pressure arm (5) is rotatably provided at the other end of the screw (3), the two ends of the pressure arm (5) being hinged to the stroke openings (10) respectively; connecting rods (6) are hinged to the two clamping arms (2), and a crossbeam (7) is hinged between the two connecting rods (6), the crossbeam (7) being provided with lifting lugs (8), characterized in that: The pressure arm (5) is provided with pressure blocks (12) on both sides, and the pressure block (12) is provided with an arc-shaped pressure port (13) on the side near the clamping pipe; The clamping arm (2) is provided with a clamping mechanism on one side wall below the pressure arm (5). The clamping mechanism includes a connecting seat (14), which has a clamping threaded hole. A screw (15) is fitted in the clamping threaded hole. A clamping block (16) is rotatably provided at one end of the screw (15), and a rotating head (19) is provided at the other end of the screw (15). An arc-shaped clamping opening is provided on one side of the clamping block (16). The clamping block (16) and the pressure block (12) are located at the vertex of a virtual isosceles triangle.

2. A pipe clamp according to claim 1, characterized in that: The connecting seat (14) has guide holes on both sides of the clamping thread hole, and a guide rod (18) is provided in the guide hole. One end of the guide rod (18) is connected to the clamping block (16).

3. A pipe clamp according to claim 1, characterized in that: The distance between the connector (1) and the crossbeam (7) is greater than the length of the travel port (10).

4. A pipe clamp according to claim 1, characterized in that: The distance between the connecting seat (14) and the inner wall of the clamping arc (9) is greater than the thickness of the clamping block (16).

5. A pipe clamp according to claim 1, characterized in that: The clamping block (16) is provided with a rubber pad (17) on the arc-shaped clamping opening.

6. A pipe clamp according to claim 1, characterized in that: The lead screw (15) has a rotating disk (20) at one end near the rotating head (19).

7. A pipe clamp according to claim 1, characterized in that: The connecting rod (6) has a clearance opening (20) on the moving path of the screw (3). The width of the clearance opening (20) is greater than the amount of movement of the screw (3) between the connector (1) and the crossbeam (7), and the distance between the two clearance openings (20) is greater than the length of the rotating rod (4).

8. A pipe clamp according to claim 7, characterized in that: The clearance (20) is semi-circular.

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