Anti-slip chain type pipe wrench
By setting rubber blocks and worm gear and worm structures on chain pipe clamps, the problem of chain and pipeline slippage is solved, and a more stable pipeline tightening and higher adaptability is achieved, which avoids wear on high-surface quality pipelines. It has self-locking function.
Patent Information
- Application Number
- CN202411120445.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2024-12-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing chain pipe clamps are prone to slip between the chain and the pipe wall when rotating the pipe, resulting in unbalanced center of gravity of the operator, posing safety hazards, and it is easy to cause wear when the high-surface quality pipe is tightly held and rotated.
A chain pipe clamp with anti-slip removal is designed. By setting a plurality of rubber blocks arranged along the length direction on the chain, and using worm gear and worm gear to drive the sprocket to pull the chain, the rubber block is pre-pressed on the pipe and adding chains. The contact area and friction with the pipe avoid slippage and have a self-locking function.
It effectively avoids the slippage of chains and pipes, improves the stability and adaptability of rotating pipes, reduces wear on high-surface quality pipes, and does not require additional rotational force, and has flexible adjustment and self-locking functions.
Smart Images
Figure CN119115820A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of hardware tools, and in particular relates to a chain-type pipe clamp which is anti-slip. Background Art
[0002] Chain pipe pliers, also known as chain pliers, are a special type of pipe pliers tool. Chain pipe pliers can clamp and rotate pipes of different materials, such as metal pipes, ceramic pipes, thin-walled pipes, plastic pipes, etc. Its structural characteristics and working principles enable it to safely and effectively clamp and rotate pipes of different materials in various scenarios.
[0003] At present, when a chain pipe clamp is used, the chain is passed around the pipe body and tightened so that the chain is stuck on the outer wall of the pipe body, and then the handle is held and turned to rotate the pipe, thereby tightening or loosening the pipe. However, the current chain is composed of multiple joints in series. When the chain is wrapped around the pipe body, the connection of each joint of the chain can bend, but the joint itself cannot bend, so that the contact between each joint of the chain and the pipe body is line contact rather than surface contact, and the contact area is small. At the end of the tightening stroke or the initial stroke of loosening the pipe, the operator will apply a large force. At this time, the chain is prone to slipping against the pipe wall, which in turn causes the operator's center of gravity to be unbalanced, posing certain safety hazards. Summary of the invention
[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a chain-type pipe clamp with anti-slip function, which at least partially solves the above problem.
[0005] The technical solution adopted by the present invention is as follows: The present invention proposes an anti-slip chain type pipe clamp, comprising: The mounting seat is configured as a U-shaped structure having a mounting cavity inside; A handle, one end of which is connected to the mounting seat; A sprocket wheel is rotatably disposed in the mounting cavity; A chain, one end of the chain is connected to the mounting seat, and the other end of the chain is connected to the sprocket, and the sprocket is configured to be able to rotate and pull the chain so that the chain is clamped on the outer wall of the pipe; The chain is provided with a plurality of rubber blocks arranged along the length direction of the chain, and the two ends of the rubber blocks protrude from the two sides of the chain respectively, one end of the rubber block protrudes from the chain by a distance of 1.0-3.0 mm, which is set as the first end of the rubber block, and the other end of the rubber block protrudes from the chain by a distance of 6.0-8.0 mm, which is set as the second end of the rubber block; The chain is configured to be rotatably connected to the mounting seat so that the first end and the second end of the rubber block can rotate and exchange positions; It also includes a worm wheel and a worm screw that mesh with each other. The worm wheel is coaxially fixed on the sprocket. Through the transmission of the worm wheel and the worm screw, the sprocket can be driven to rotate and pull the chain, the rubber block is pre-pressed on the pipe wall, and the sprocket is locked.
[0006] Furthermore, the handle is rotatably connected to the mounting seat via a bearing, and the worm is coaxially fixed to the handle.
[0007] Furthermore, an extension rod for increasing the length of the lever arm is connected to one end of the handle away from the mounting seat.
[0008] Furthermore, the extension rod is provided with an installation groove along the length direction, and a force rod is rotatably connected in the installation groove. When the force rod is rotated to be parallel to the extension rod, the force rod is stored in the installation groove. When the force rod is rotated to be perpendicular to the extension rod, the length of the force arm for rotating the handle can be increased.
[0009] Furthermore, the number of the chains is set to two, and the two chains are arranged parallel to each other, and the number of the sprockets is also set to two, and the two sprockets are distributed at both ends of the worm wheel.
[0010] Furthermore, the rubber block is fixed on a side surface of the chain in a non-bending direction.
[0011] Furthermore, a connecting frame is provided at one end of the chain connected to the mounting seat, and a rotating shaft connected to the mounting seat is provided on the connecting frame, and the chain is rotatably connected to the mounting seat through the connecting frame.
[0012] Furthermore, a pressing block is fixed to the bottom of the mounting seat, and the bottom surface of the pressing block is configured as an inner concave structure capable of engaging with the outer wall of the pipeline.
[0013] Furthermore, a plurality of guide rollers for guiding the chain are provided in the installation cavity.
[0014] Furthermore, an elastic pressure plate is fixed on the mounting seat, and the elastic pressure plate is located directly above the sprocket and is used to limit the chain from biting on the sprocket.
[0015] The beneficial effects achieved by the present invention using the above structure are as follows: 1. By arranging rubber blocks on the chain along the length direction of the chain, the two ends of the rubber blocks protrude from the two sides of the chain respectively, and the protruding distance of the first end of the rubber block is shorter, and the protruding distance of the second end is longer. When the first end of the rubber block is tightly held on the pipe by the chain, the protruding part of the first end of the rubber block can be completely compressed, so that the rubber block and the chain contact the pipe at the same time, increasing the contact area between the chain and the outer wall of the pipe, thereby avoiding the phenomenon of chain slipping when rotating the pipe, and after the protruding part of the first end of the rubber block is completely compressed, no elastic space will appear between the chain and the pipe wall, thereby improving the stability of the pipe clamping; 2. When the second end of the rubber block is held tightly on the pipe by the chain, since the second end of the rubber block protrudes a long distance, after the pipe is fully held tightly, the protruding part of the second end of the rubber block will not be completely compressed, so that the chain will not contact the outer wall of the pipe. The rubber block is soft and will not cause wear to the outer wall of the pipe. It can hold and rotate pipes with high surface quality requirements, such as pipe sealing ports, plastic pipes, etc., to improve adaptability; 3. By setting a worm and a worm wheel, the sprocket is driven to pull the chain, and the rubber block is pre-pressed on the pipe. The worm wheel and the worm can steplessly adjust the rotation angle of the sprocket. Compared with the traditional ratchet locking structure, the distance that the chain is pulled increases linearly, and then the deformation amount of the compressed rubber block changes linearly. The control is more flexible and has a self-locking function, which can directly tighten and lock the chain. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic structural diagram of an anti-slip chain pipe clamp proposed in an embodiment of the present invention; Figure 2 A partial cutaway schematic diagram of a mounting seat in an anti-slip chain-type pipe clamp provided in an embodiment of the present invention; Figure 3 A schematic diagram of a state of a chain wrapping a pipe in an anti-slip chain pipe clamp provided by an embodiment of the present invention; Figure 4 A schematic diagram of the installation position of a rubber block in an anti-slip chain pipe clamp provided in an embodiment of the present invention.
[0017] Among them, 1. mounting seat; 101. mounting cavity; 11. pressure block; 12. guide roller; 2. handle; 21. extension rod; 22. force rod; 201. mounting groove; 3. chain; 31. rubber block; 4. sprocket; 5. worm wheel; 6. worm; 7. elastic pressure plate; 8. connecting frame.
[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0020] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.
[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the present invention provides an anti-slip chain type pipe clamp, which includes a mounting base 1, a handle 2, a chain 3 and a sprocket 4.
[0022] The mounting seat 1 is configured as a U-shaped structure with a mounting cavity 101 inside, one end of the handle 2 is connected to the mounting seat 1, the sprocket 4 is rotatably disposed in the mounting cavity 101, one end of the chain 3 is connected to the mounting seat 1, and the other end of the chain 3 is connected to the sprocket 4, and the sprocket 4 is configured to be able to rotate and pull the chain 3 so that the chain 3 is tightened on the outer wall of the pipe.
[0023] In this way, when rotating the pipe, the chain 3 is wrapped around the outside of the pipe for one circle and manually tightened first, and then the chain 3 and the sprocket 4 are engaged with each other. Through the rotation of the sprocket 4, the chain 3 is pulled so that the chain 3 is tightened on the outer wall of the pipe, and then the handle 2 is used as a lever to rotate, thereby loosening or tightening the pipe.
[0024] In an optional embodiment, a pressure block 11 is fixed to the bottom of the mounting seat 1, and the bottom surface of the pressure block 11 is configured as a concave structure that can engage with the outer wall of the pipe, so that the pressure block 11 can be stuck to the outer wall of the pipe to avoid sliding and improve stability.
[0025] In a preferred embodiment, a plurality of guide rollers 12 for guiding the chain 3 are provided in the mounting cavity 101, and both ends of the guide rollers 12 are rotatably connected to the mounting base 1 via bearings. The chain 3 is supported by the guide rollers 12, so that when the sprocket 4 pulls the chain 3, the chain 3 will not be blocked and unable to be dragged.
[0026] Furthermore, an extension rod 21 for increasing the length of the lever arm is connected to one end of the handle 2 away from the mounting seat 1 , thereby saving manpower by increasing the length of the lever arm of the handle 2 .
[0027] Combination Figure 2 As shown, the number of chains 3 is set to two, and the two chains 3 are arranged parallel to each other, the number of sprockets 4 is also set to two, and the two sprockets 4 are distributed at both ends of the worm gear 5. By setting two chains 3, the contact area between the chain 3 and the pipeline can be increased, the contact friction force is improved, and the probability of the chain 3 slipping is reduced.
[0028] Combination Figure 2 and Figure 3 As shown, an elastic pressure plate 7 is fixed on the mounting seat 1 . The elastic pressure plate 7 itself is elastic and can move up and down elastically. The elastic pressure plate 7 is located directly above the sprocket 4 and can limit the chain 3 from biting on the sprocket 4 .
[0029] In this way, after the chain 3 is wrapped around the pipe, the chain 3 is passed between the elastic pressure plate 7 and the sprocket 4. Under the pulling force of the personnel, the elastic pressure plate 7 is pushed upward, and the chain 3 can quickly pass between the elastic pressure plate 7 and the sprocket 4. When the chain 3 can no longer be tightened manually, the chain 3 is engaged with the sprocket 4 again. At this time, the elastic pressure plate 7 elastically recovers and presses the chain 3 on the sprocket 4, maintaining the engagement between the chain 3 and the sprocket 4 and preventing the chain 3 from detaching from the sprocket 4.
[0030] Combination Figure 2 , Figure 3 and Figure 4 As shown, the chain 3 is provided with a plurality of rubber blocks 31 arranged along the length direction of the chain 3, and the two ends of the rubber block 31 protrude from the two sides of the chain 3 respectively, one end of the rubber block 31 protrudes from the chain 3 by a distance of 1.0-3.0 mm, which is set as the first end of the rubber block 31, and the other end of the rubber block 31 protrudes from the chain 3 by a distance of 6.0-8.0 mm, which is set as the second end of the rubber block 31; Furthermore, the first end of the chain 3 is configured to be rotatably connected to the mounting seat 1 , so that the first end and the second end of the rubber block 31 can rotate and exchange positions.
[0031] When the first end of the rubber block 31 is held tightly against the outer wall of the pipe by the chain 3, the protruding portion of the first end of the rubber block 31 is compressed and forms surface contact with the surface of the pipe, thereby increasing the contact area between the chain 3 and the outer wall of the pipe, thereby preventing the chain 3 from slipping when the pipe is rotated; In a preferred embodiment, the first end of the rubber block 31 protrudes from the chain 3 by 2.0 mm. When the chain 3 hugs the outer wall of the pipe, the protruding distance of the first end of the rubber block 31 is short, so that the protruding portion of the first end of the rubber block 31 can be easily compressed completely, which will not affect the hugging of the chain 3, thereby avoiding the formation of elastic space between the chain 3 and the pipe wall.
[0032] In a preferred embodiment, the second end of the rubber block 31 protrudes from the chain 3 by 7 mm.
[0033] In this way, by rotating the chain 3, the first end and the second end of the rubber block 31 are exchanged. Since the second end of the rubber block 31 protrudes a long distance, the protruding portion of the second end of the rubber block 31 is clamped to the outer wall of the pipe by the chain 3. When the contact friction between the protruding portion of the second end of the rubber block 31 and the pipe wall is sufficient, the chain 3 still does not contact the outer wall of the pipe. At this time, the pipe is contacted and clamped by the second ends of multiple rubber blocks 31. The rubber block 31 is soft and will not cause wear to the outer wall of the pipe. It can clamp and rotate pipes with high surface quality requirements, such as pipe sealing ports, plastic pipes, etc., to improve adaptability.
[0034] In a preferred embodiment, a connecting frame 8 is provided at one end of the chain 3 connected to the mounting seat 1, and a rotating shaft connected to the mounting seat 1 is provided on the connecting frame 8. The chain 3 is rotatably connected to the mounting seat 1 through the connecting frame 8, so that the chain 3 can rotate around the rotating shaft as the axis.
[0035] In a specific embodiment, the rubber block 31 is fixed to a side surface of the chain 3 in a non-bending direction (eg Figure 4 As shown), the rubber block 31 does not affect the engagement of the chain 3 with the sprocket 4.
[0036] At present, the chain 3 is made to hug the pipe by first tightening it manually and then adjusting the fulcrum. However, this method requires personnel to apply force to rotate the pipe so that the chain 3 can hug the pipe tightly. After adopting the rubber block 31, the rubber block 31 needs to be compressed first when the chain 3 hugs the pipe. Compressing the rubber block 31 will additionally increase the force applied by the personnel to rotate the pipe, and the rubber block 31 may not be completely compressed under human power, resulting in the chain 3 being unable to hug the pipe wall, insufficient friction, and slipping.
[0037] Therefore, the present invention accordingly adopts a stepless adjustment component, which can pre-tighten the rubber block 31 and then rotate the pipe without adding any extra force required to rotate the pipe. The component has a self-locking function and can directly tighten and lock the chain 3 without the need for a fulcrum, thereby improving the stability of the rotating pipe.
[0038] In a specific embodiment, the stepless adjustment component includes a worm wheel 5 and a worm 6 meshing with each other, the worm wheel 5 is coaxially fixed on the sprocket 4, and the worm 6 drives the worm wheel 5, which can drive the sprocket 4 to pull the chain 3, and pre-press the rubber block 31 on the pipeline, without adding additional force applied by personnel to rotate the pipeline; The worm wheel 5 and the worm 6 can steplessly adjust the rotation angle of the sprocket 4 and lock the sprocket 4. Compared with the traditional ratchet locking structure, the distance that the chain 3 is pulled can be increased linearly, and the deformation amount of the compressed rubber block 31 can be changed linearly, and the control is more flexible.
[0039] In this way, when the first end of the rubber block 31 is in contact with the pipe wall to increase the contact area, the worm wheel 5 and the worm 6 are used to drive the sprocket 4 to pull the chain 3 until the rubber block 31 is completely compressed and the chain 3 is tightly clamped on the outer wall of the pipe. The worm wheel 5 and the worm 6 no longer rotate, thereby locking the sprocket 4, maintaining the chain 3 tightly and the rubber block 31 in a completely compressed state; When the second end of the rubber block 31 is used to hold the pipe tightly, the worm wheel 5 and the worm 6 are used to drive the sprocket 4 to pull the chain 3 until the rubber block 31 completely holds the pipe tightly, and the worm wheel 5 and the worm 6 no longer rotate, thereby locking the sprocket 4 to maintain the state of the chain 3 and the rubber block 31.
[0040] Furthermore, the handle 2 is rotatably connected to the mounting base 1 via a bearing, and the worm 6 is coaxially fixed to the handle 2. The handle 2 is used as a rotating shaft to rotate the worm 6, and there is no need to set up an additional rotating shaft.
[0041] Furthermore, the extension rod 21 is provided with a mounting groove 201 along the length direction, and a force rod 22 is rotatably connected in the mounting groove 201. When the force rod 22 is rotated to be parallel to the extension rod 21, the force rod 22 is stored in the mounting groove 201 and will not affect the swing of the handle 2. When the force rod 22 is rotated to be perpendicular to the extension rod 21, the length of the force arm when the handle 2 rotates itself can be increased, thereby saving the force required for the person to rotate the handle 2 to hold the chain 3 tightly.
[0042] In summary of the above embodiments: by arranging a rubber block 31 along the length direction of the chain 3 on the chain 3, the two ends of the rubber block 31 protrude from the two sides of the chain 3 respectively, and the protruding distance of the first end of the rubber block 31 is shorter. When the first end of the rubber block 31 is tightly embraced by the chain 3 on the outer wall of the pipe, the protruding portion of the first end of the rubber block 31 is compressed and forms a surface contact with the surface of the pipe, thereby increasing the contact area between the chain 3 and the outer wall of the pipe, thereby avoiding the phenomenon of the chain 3 slipping when the pipe is rotated, and because the protruding distance of the rubber block 31 is shorter, when the chain 3 hugs the outer wall of the pipe, the protruding portion of the rubber block 31 is easily completely compressed, which will not affect the hugging of the chain 3, thereby avoiding the elastic space between the chain 3 and the pipe wall; The second end of the rubber block 31 protrudes a long distance, and the first end of the chain 3 is arranged to be rotatably connected to the mounting seat 1. By rotating the chain 3, the first end and the second end of the rubber block 31 are exchanged. Since the second end of the rubber block 31 protrudes a long distance, when the second end of the rubber block 31 is clamped on the outer wall of the pipe by the chain 3, the protruding part of the second end of the rubber block 31 will not be completely compressed, so that the chain 3 will not contact the outer wall of the pipe, and the pipe is only clamped by multiple rubber blocks 31. The rubber block 31 is soft and will not cause wear to the outer wall of the pipe. It can clamp and rotate pipes with high surface quality requirements, such as pipe sealing ports, plastic pipes, etc., to improve adaptability; By setting up the worm 6 and the worm wheel 5, and utilizing the worm 6 to drive the worm wheel 5, the sprocket 4 can be driven to pull the chain 3, and the rubber block 31 can be pre-pressed on the pipe without adding any additional force applied by personnel to rotate the pipe; and the worm wheel 5 and the worm 6 can steplessly adjust the rotation angle of the sprocket 4. Compared with the traditional ratchet locking structure, the distance that the chain 3 is pulled can be increased linearly, and then the deformation amount of the compressed rubber block 31 can be changed linearly, the control is more flexible, and it has a self-locking function, and can directly tighten and lock the chain 3.
[0043] Working principle: when rotating a pipe without surface requirements, rotate the chain 3 until the first end of the rubber block 31 faces the pipe, then wrap the chain 3 around the pipe, and after tightening, engage with the sprocket 4, and make the first end of the rubber block 31 contact with the pipe. At this time, the elastic pressure plate 7 elastically recovers and presses the chain 3 on the sprocket 4 to maintain the engagement between the chain 3 and the sprocket 4. Then hold the handle 2 and rotate the handle 2 along its own axis to drive the worm 6 to rotate. The worm 6 drives the worm wheel 5 to make the sprocket 4 rotate and pull the chain 3 until the chain 3 is pulled to the protruding part of the first end of the rubber block 31 and the chain 3 is tightly clamped on the outer wall of the pipe. Then stop rotating. At this time, the worm wheel 5 and worm 6 are locked, and the chain 3 is locked. Then hold the handle 2 and rotate it around the pipe to tighten or loosen the pipe. After completion, rotate the handle 2 in the reverse direction around its own axis to make the sprocket 4 rotate in the reverse direction, loosen the chain 3, and finally remove the chain 3. When rotating a pipe with surface requirements, rotate the chain 3 until the second end of the rubber block 31 faces the pipe, then wrap the chain 3 around the pipe, tighten it and engage with the sprocket 4, and make the second end of the rubber block 31 contact the pipe, then hold the handle 2 and rotate the handle 2 along its own axis, the worm 6 drives the worm wheel 5, so that the sprocket 4 rotates and pulls the chain 3 until the second end of the rubber block 31 is completely pressed against the pipe wall, so that the rubber block 31 cannot slide on the pipe wall and stops rotating. At this time, the worm wheel 5 and worm 6 are locked, and the chain 3 is locked. Then hold the handle 2 and rotate it around the pipe to tighten or loosen the pipe. After completion, rotate the handle 2 in the reverse direction around its own axis to make the sprocket 4 rotate in the reverse direction, loosen the chain 3, reduce the pressure between the second end of the rubber block 31 and the pipe wall, and finally remove the chain 3.
[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
[0046] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.
Claims
1. A chain-type pipe clamp with an anti-slip feature, characterized in that: include: The mounting seat (1) is configured as a U-shaped structure having a mounting cavity (101) therein; A handle (2), one end of the handle (2) being connected to the mounting seat (1); The sprocket (4) is rotatably disposed in the mounting cavity (101). a chain (3), one end of the chain (3) being connected to the mounting seat (1), and the other end of the chain (3) being connected to the sprocket (4), the sprocket (4) being configured to be able to rotate and pull the chain (3), so that the chain (3) is clamped tightly to the outer wall of the pipe; The chain (3) is provided with a plurality of rubber blocks (31) arranged along the length direction of the chain (3), and two ends of the rubber block (31) protrude from two sides of the chain (3), one end of the rubber block (31) protrudes from the chain (3) by a distance of 1.0-3.0 mm, which is set as the first end of the rubber block (31), and the other end of the rubber block (31) protrudes from the chain (3) by a distance of 6.0-8.0 mm, which is set as the second end of the rubber block (31); The chain (3) is configured to be rotatably connected to the mounting seat (1), so that the first end and the second end of the rubber block (31) can rotate and exchange positions; It also includes a worm wheel (5) and a worm (6) meshing with each other, wherein the worm wheel (5) is coaxially fixed on the sprocket wheel (4), and through the transmission of the worm wheel (5) and the worm (6), the sprocket wheel (4) can be driven to rotate and pull the chain (3), so that the rubber block (31) is pre-pressed against the pipe wall and the sprocket wheel (4) is locked.
2. The anti-slip chain pipe clamp according to claim 1, characterized in that: The handle (2) is rotatably connected to the mounting seat (1) via a bearing, and the worm (6) is coaxially fixed to the handle (2).
3. The anti-slip chain pipe clamp according to claim 1, characterized in that: An end of the handle (2) away from the mounting seat (1) is connected to an extension rod (21) for increasing the length of the lever arm.
4. The anti-slip chain pipe clamp according to claim 3, characterized in that: The extension rod (21) is provided with a mounting groove (201) along its length direction, and a force rod (22) is rotatably connected in the mounting groove (201); when the force rod (22) is rotated to be parallel to the extension rod (21), the force rod (22) is received in the mounting groove (201); when the force rod (22) is rotated to be perpendicular to the extension rod (21), the length of the force arm for rotating the handle (2) can be increased.
5. The anti-slip chain pipe clamp according to claim 1, characterized in that: The number of the chains (3) is set to two, and the two chains (3) are arranged parallel to each other. The number of the sprockets (4) is also set to two, and the two sprockets (4) are distributed at both ends of the worm wheel (5).
6. The anti-slip chain pipe clamp according to claim 1, characterized in that: The rubber block (31) is fixed on the side of the chain (3) in the non-bending direction.
7. The anti-slip chain pipe clamp according to claim 1, characterized in that: A connecting frame (8) is provided at one end of the chain (3) connected to the mounting seat (1); a rotating shaft connected to the mounting seat (1) is provided on the connecting frame (8); and the chain (3) is rotatably connected to the mounting seat (1) via the connecting frame (8).
8. The anti-slip chain pipe clamp according to claim 1, characterized in that: A pressing block (11) is fixed to the bottom of the mounting seat (1), and the bottom surface of the pressing block (11) is arranged as an inner concave structure capable of engaging with the outer wall of the pipeline.
9. The anti-slip chain pipe clamp according to claim 1, characterized in that: A plurality of guide rollers (12) for guiding the chain (3) are arranged in the installation cavity (101).
10. The anti-slip chain pipe clamp according to claim 1, characterized in that: An elastic pressure plate (7) is fixed on the mounting seat (1), and the elastic pressure plate (7) is located directly above the sprocket (4) and is used to limit the chain (3) from biting on the sprocket (4).