Clamp tool

Abstract

The utility model relates to the technical field of hardware tools, and discloses a clamp which can solve the problem that when an existing clamp clamps and extrudes a pipeline, the clamping state of the clamp cannot be locked, so that circulation of media in the pipeline cannot be continuously blocked, the clamp comprises a first pressing rod structure, a second pressing rod structure and a locking mechanism, the first end of the first pressing rod structure is provided with a first extrusion part; the first pressing rod structure and the second pressing rod structure are rotatably connected, and the first end of the second pressing rod structure is provided with a second extrusion part opposite to the first extrusion part; the locking mechanism comprises a locking piece, the locking piece is movably connected to the first pressing rod structure, the second pressing rod structure is provided with a locking groove, and under the condition that the first pressing rod structure rotates to a target position relative to the second pressing rod structure, the end, facing the direction of the locking groove, of the locking piece abuts against the inner wall of the locking groove. And the relative positions of the first pressing rod structure and the second pressing rod structure are locked. The pliers can be widely applied to maintenance of various vehicles.

Description

Technical Field

[0001] The present application relates to but is not limited to the technical field of hardware tools, and in particular to a pliers. Background Art

[0002] During vehicle operation, the engine, water tank, radiator and other parts are connected by pipes to achieve coolant circulation; during the verification of prototypes and prototypes or after-sales maintenance, it is often necessary to replace cooling system parts such as water pumps, water valves, water temperature sensors, and water pipes. Generally, during the replacement of cooling system parts, the antifreeze in the cooling system needs to be drained, which will cause pollution and waste of the antifreeze; after refilling the antifreeze, it takes a lot of time to manually vent the cooling system, which is time-consuming and labor-intensive.

[0003] In the related technology, there are pliers that can clamp and squeeze the pipe, but the clamping state of the pliers cannot be locked, making it impossible to continuously block the flow of antifreeze in the pipe, which can easily cause antifreeze to spill and cause contamination of the gearbox, front suspension and other components in the cabin. Utility Model Content

[0004] In order to solve the above problems, the present application provides a pliers that can lock the clamping state of the pliers when clamping and squeezing the pipe, so that the pliers can continuously block the flow of antifreeze in the pipe, preventing the antifreeze from spilling and causing contamination of the gearbox, front suspension and other components in the cabin.

[0005] The present application provides a pliers, which includes: a first pressure rod structure, a second pressure rod structure and a locking mechanism, wherein the first end of the first pressure rod structure has a first extrusion portion; the first pressure rod structure and the second pressure rod structure are rotatably connected, the first end of the second pressure rod structure has a second extrusion portion opposite to the first extrusion portion, the first extrusion portion and the second extrusion portion are used to clamp and squeeze the pipeline to block the flow of the medium in the pipeline; the locking mechanism includes a locking member, the locking member is movably connected to the first pressure rod structure, and the second pressure rod structure is provided with a locking groove, when the first pressure rod structure is rotated to a target position relative to the second pressure rod structure, the end of the locking member facing the locking groove direction abuts against the inner wall of the locking groove to lock the relative positions of the first pressure rod structure and the second pressure rod structure.

[0006] The present application provides a pliers, which includes a first pressure rod structure and a second pressure rod structure, a clamping space is provided between the first pressure rod structure and the second pressure rod structure, and the first pressure rod structure and the second pressure rod structure are rotatably connected, so that the first pressure rod structure can be rotated to different positions relative to the second pressure rod structure, and pipes of different diameters can be clamped. The first end of the first pressure rod structure has a first extrusion portion, and the first end of the second pressure rod structure has a second extrusion portion opposite to the first extrusion portion. The first extrusion portion and the second extrusion portion can simultaneously squeeze the two side surfaces of the pipe to deform the pipe so that the two side inner walls of the pipe are tightly attached together, so that the medium such as antifreeze liquid in the pipe is blocked; the pliers includes a locking mechanism, and the locking mechanism includes a locking piece, which is movably connected to the first pressure rod structure and is provided on the second pressure rod structure. There is a locking groove. When the first pressure rod structure is rotated to the target position relative to the second pressure rod structure, that is, the first extrusion part and the second extrusion part squeeze the pipe to block the medium such as antifreeze in the pipe, the end of the locking piece facing the locking groove is abutted against the inner wall of the locking groove, so that the relative position of the first pressure rod structure and the second pressure rod structure can be fixed and locked. That is, before replacing the cooling system parts, the pipes at both ends of the parts can be clamped with the first extrusion part and the second extrusion part, and the locking piece can be abutted against the inner wall of the locking groove to lock the pliers, which can achieve a greater clamping force. In this way, the antifreeze in the cooling system can be prevented from flowing out in large quantities during the replacement of parts, thereby avoiding waste and environmental pollution, and reducing the subsequent manual exhaust work of the cooling system, thereby improving the work efficiency of replacing parts.

[0007] In an implementable method provided in the present application, the first pressure rod structure is provided with a first connecting part at a position away from the end, and the second pressure rod structure is provided with a second connecting part corresponding to the first connecting part at a position away from the end, and the first connecting part and the second connecting part are rotationally connected through a first connecting axis; the second end of the first pressure rod structure has a first operating part, and the second end of the second pressure rod structure has a second operating part, and the first operating part and the second operating part are used to operate the first pressure rod structure and the second pressure rod structure to move relative to each other, so as to make the first extrusion part and the second extrusion part move relative to each other.

[0008] In an implementable method provided in the present application, the locking member is rotatably connected to the first operating part via a second connecting shaft, and the locking member has an abutment portion extending in the direction of a locking groove. The locking groove is arranged on the side of the second connecting part away from the first extrusion part, and the side wall of the abutment portion abuts against the inner wall of the locking groove to limit the mutual rotation of the first connecting part and the second connecting part.

[0009] In an implementable method provided in the present application, the side wall of the locking groove where the abutment portion contacts gradually moves away from the second connection portion, the bottom surface of the locking groove is arc-shaped, and an arc-shaped chamfer is provided at the connection between the side wall of the locking groove and the adjacent side surface.

[0010] In an implementation method provided in the present application, an arc chamfer is provided at the connection between the side of the second connecting part away from the second extrusion part and the adjacent side, and there are multiple locking grooves, which are evenly arranged on the arcuate side of the second connecting part away from the first extrusion part.

[0011] In an implementable method provided in the present application, the locking member has an unlocking portion in a direction away from the first extrusion portion, the unlocking portion extends in a direction away from the first extrusion portion, and an end of the unlocking portion extends in a direction away from the second extrusion portion. The unlocking portion is used to operate the locking member to rotate so that the abutment portion is away from the locking groove.

[0012] In an implementable method provided in the present application, the locking mechanism also includes a restoring member connected to the locking member. When the unlocking member is subjected to force to drive the abutting member to rotate, the restoring member applies a restoring force to the abutting member to approach the locking groove.

[0013] In an implementable method provided in the present application, the first pressure rod structure includes an extrusion block and a first pressure rod, the extrusion block is hinged to the first end of the first pressure rod, the side of the extrusion block facing the second extrusion portion is the first extrusion surface, the side of the second extrusion portion facing the first extrusion portion is the second extrusion surface, and the first extrusion surface and the second extrusion surface are parallel to each other.

[0014] In an implementable method provided in the present application, a accommodating groove is provided on the extrusion block toward the first pressure rod, and corresponding coaxial connecting holes are provided on the groove wall of the accommodating groove and on the first end of the first pressure rod. The extrusion block is hinged to the first end of the first pressure rod through the connecting hole via a third connecting axis.

[0015] In an implementation provided in the present application, the first extrusion portion and the second extrusion portion are covered with a flexible member to prevent the outer surface of the pipe from being worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of the pliers provided in the embodiment of the present application;

[0017] Figure 2 A schematic diagram of a structure of a clamp holding a pipe provided in an embodiment of the present application;

[0018] Figure 3 A partial cross-sectional view of a pipe clamping structure provided by an embodiment of the present application;

[0019] Figure 4 A schematic diagram of a partial structure of a clamp provided in an embodiment of the present application;

[0020] Figure 5 A schematic diagram of the structure of the pliers in different states provided in an embodiment of the present application.

[0021] Description of reference numerals:

[0022] 1-pliers; 11-first pressure rod structure; 111-extrusion block; 1111-first extrusion part; 11111-first extrusion surface; 1112-accommodation groove; 112-first pressure rod; 1121-first connecting part; 1122-first operating part; 11221-first operating end; 11222-first extension handle; 113-third connecting shaft; 12-second pressure rod structure; 121-second pressure rod; 1211-second extrusion part; 12111-second extrusion surface; 1212-second connecting part; 12121-locking groove; 1213-second operating part; 12131-second operating end; 12132-second extension handle; 13-first connecting shaft; 14-locking mechanism; 141-locking member; 1411-abutment portion; 1412-unlocking member; 142-second connecting shaft; 143-recovery member; 2-pipeline. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0025] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more.

[0026] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.

[0027] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0028] In the embodiments of the present application, the terms "include", "comprises" 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 includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0029] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0030] As vehicles are developing rapidly, the application of thermal management technology is constantly expanding, and the cooling system is becoming more and more important. During the operation of the vehicle, the engine, water tank, radiator or motor and other parts are connected by pipes to realize the circulation of coolant; during the verification of prototypes and samples or after-sales maintenance, it is often necessary to replace cooling system parts such as water pumps, water valves, water temperature sensors, and water pipes. Generally, during the replacement of cooling system parts, the antifreeze in the cooling system needs to be emptied, which will cause pollution and waste of the antifreeze; after refilling the antifreeze, it takes a lot of time to manually vent the cooling system, which is time-consuming and labor-intensive.

[0031] In the related art, there is a clamp 1 that can clamp and squeeze the pipe 2, but the clamping state of the clamp 1 cannot be locked, so that the flow of antifreeze in the pipe 2 cannot be continuously blocked, which easily causes the antifreeze to spill, resulting in contamination of the gearbox, front suspension and other parts in the cabin. The present application provides an auxiliary tool to assist in the repair of automobile cooling system parts. The clamping state of the clamp 1 can be locked when the clamp 1 clamps and squeezes the pipe 2, so that the clamp 1 can continuously block the flow of antifreeze in the pipe 2, preventing the antifreeze from spilling, resulting in contamination of the gearbox, front suspension and other parts in the cabin.

[0032] Reference Figure 1 , Figure 2 and Figure 3The embodiment of the present application provides a pliers 1, which includes: a first pressure rod structure 11, a second pressure rod structure 12 and a locking mechanism 14, wherein the first end of the first pressure rod structure 11 has a first extrusion portion 1111; the first pressure rod structure 11 and the second pressure rod structure 12 are rotatably connected, and the first end of the second pressure rod structure 12 has a second extrusion portion 1211 opposite to the first extrusion portion 1111, the first extrusion portion 1111 and the second extrusion portion 1211 are used to clamp and squeeze the pipeline 2 to block the flow of the medium in the pipeline 2; the locking mechanism 14 includes a locking member 141, which is movably connected to the first pressure rod structure 11, and a locking groove 12121 is provided on the second pressure rod structure 12. When the first pressure rod structure 11 rotates to a target position relative to the second pressure rod structure 12, the end of the locking member 141 facing the locking groove 12121 abuts against the inner wall of the locking groove 12121 to lock the relative position of the first pressure rod structure 11 and the second pressure rod structure 12.

[0033] The present application provides a pliers 1, which includes a first pressure rod structure 11 and a second pressure rod structure 12, a clamping space is provided between the first pressure rod structure 11 and the second pressure rod structure 12, and the first pressure rod structure 11 and the second pressure rod structure 12 are rotatably connected, so that the first pressure rod structure 11 can be rotated to different positions relative to the second pressure rod structure 12, so that pipes 2 of different diameters can be clamped, the first end of the first pressure rod structure 11 has a first extrusion portion 1111, and the first end of the second pressure rod structure 12 has a second extrusion portion 1211 opposite to the first extrusion portion 1111, the first extrusion portion 1111 and the second extrusion portion 1211 can simultaneously squeeze the two side surfaces of the pipe 2 to deform the pipe 2 so that the two side inner walls of the pipe 2 are tightly attached together, so that the medium such as antifreeze liquid in the pipe 2 is blocked; the pliers 1 includes a locking mechanism 14, and the locking mechanism 14 includes a locking member 141, and the locking member 141 is movably connected to the first pressure rod structure 11 and the second pressure rod structure 12 2 is provided with a locking groove 12121. When the first pressure rod structure 11 rotates to the target position relative to the second pressure rod structure 12, that is, the first extrusion part 1111 and the second extrusion part 1211 squeeze the pipe 2 to block the medium such as antifreeze in the pipe 2, the end of the locking member 141 facing the locking groove 12121 abuts against the inner wall of the locking groove 12121, so that the relative position of the first pressure rod structure 11 and the second pressure rod structure 12 can be fixed and locked. That is, before replacing the cooling system parts, the pipe 2 at both ends of the parts can be clamped by the first extrusion part 1111 and the second extrusion part 1211, and the locking member 141 abuts against the inner wall of the locking groove 12121 to lock the pliers 1, so that a greater clamping force can be achieved, so that the antifreeze in the cooling system can be prevented from flowing out in large quantities during the replacement of parts, thereby avoiding waste and environmental pollution, and reducing the subsequent manual exhaust work of the cooling system, thereby improving the efficiency of replacing parts.

[0034] It should be noted that the first extrusion part 1111 and the second extrusion part 1211 are arranged opposite to each other, and when clamping the pipe 2, the pipe 2 can be clamped from different angles. Secondly, the pipe 2 can be made of a flexible material, and the flexible material is not limited here. For example, it can be a rubber pipe 2 or a plastic pipe 2. Among them, the rubber can be made of EPDM rubber, fluororubber and other materials. The plastic can be made of polyurethane, polyethylene, polypropylene and other materials.

[0035] In addition, the connection positions of the first pressure rod structure 11 and the second pressure rod structure 12 can be various, which are not limited here. For example, the first end of the first pressure rod structure 11 can be connected to the first end position of the second pressure rod structure 12, or the second end of the first pressure rod structure 11 can be connected to the second end position of the second pressure rod structure 12.

[0036] In some embodiments provided in this application, reference is made to Figure 1 , Figure 2 and Figure 3 The first pressure rod structure 11 is provided with a first connection part 1121 at a position away from the end, and the second pressure rod structure 12 is provided with a second connection part 1212 corresponding to the first connection part 1121 at a position away from the end, and the first connection part 1121 and the second connection part 1212 are rotationally connected through a first connecting shaft 13; the second end of the first pressure rod structure 11 has a first operating part 1122, and the second end of the second pressure rod structure 12 has a second operating part 1213, the first operating part 1122 and the second operating part 1213 are used to operate the first pressure rod structure 11 and the second pressure rod structure 12 to move relative to each other, so as to make the first extrusion part 1111 and the second extrusion part 1211 move relative to each other.

[0037] In this way, the first operating part 1122 and the second operating part 1213 are used for holding, and the first connecting shaft 13 is the connection point of the pliers 1. When in use, the user applies force to the first squeezing part 1111 and the second squeezing part 1211 by holding the first operating part 1122 and the second operating part 1213. At this time, the lever action of the pliers 1 amplifies this force, so that the pliers 1 can convert a smaller external force into a larger work force based on the lever principle, thereby achieving the effect of clamping and squeezing the pipe 2 with more effort.

[0038] It should be noted that the first connecting shaft 13 can be of various types without limitation herein, and for example, can be a rivet.

[0039] In some embodiments provided in the present application, the first operating portion 1122 has a second weight reducing groove in the direction toward the second operating portion 1213 , and the second operating portion 1213 has a second weight reducing groove in the direction toward the first operating portion 1122 , and the first weight reducing groove and the second weight reducing groove are arranged opposite to each other.

[0040] In some embodiments provided in the present application, the first pressure rod structure 11, the first operating portion 1122 includes a first extended handle 11222, the second operating portion 1213 includes a second extended handle 12132, the first extended handle 11222 has a first weight reduction groove in the direction toward the second extended handle 12132, the second extended handle 12132 has a second weight reduction groove in the direction toward the first extended handle 11222, and the first weight reduction groove and the second weight reduction groove are arranged opposite to each other. In this way, the overall weight of the pliers 1 can be effectively reduced.

[0041] It should be noted that the first operating portion 1122 includes a first operating end 11221, the second operating portion 1213 includes a second operating end 12131, and the second pressure rod structure 12 includes a second pressure rod 121. Here, the first extension handle 11222 can be integrally formed with the first operating end 11221, or the first extension handle 11222 can be manufactured separately from the first operating end 11221, which is not limited here. For example, the first extension handle 11222 can be connected to the first pressure rod 112 by gluing, welding or fasteners. Here, the fasteners can be of various types and are not limited here. For example, the first extension handle 11222 is fixed to the first operating end 11221 by rivets, wherein the ends of the two side walls of the first weight reduction groove respectively have coaxial rivet holes, and the first operating end 11221 has a connecting hole, and the rivet passes through the rivet hole of one side wall of the first weight reduction groove, then passes through the connecting hole, and finally passes through the rivet hole of the other side wall of the first weight reduction groove. Furthermore, the second extension handle 12132 can be integrally formed with the second operating end 12131, or the second extension handle 12132 can be manufactured separately from the second operating end 12131, which is not limited here. By way of example, the second extension handle 12132 can be connected to the second pressure rod 121 by gluing, welding or fasteners. Here, the fasteners can be of various types, which are not limited here. By way of example, the second extension handle 12132 is fixed to the second operating end 12131 by rivets, wherein the ends of the two side walls of the second weight-reducing groove respectively have coaxial rivet holes, and the second operating end 12131 has a connecting hole, and the rivet passes through the rivet hole of one side wall of the second weight-reducing groove, then passes through the connecting hole, and finally passes through the rivet hole of the other side wall of the second weight-reducing groove. In addition, the extension handle can be a 1.5 mm thick stamping.

[0042] In addition, the locking member 141 can be located in various positions on the first pressure rod structure 11, which are not limited here. For example, it can be set on the first operating portion 1122 or on the first extrusion portion 1111. The locking groove 12121 can be located in various positions on the second pressure rod structure 12, which are not limited here. For example, it can be set on the second operating portion 1213 or on the second extrusion portion 1211.

[0043] In some embodiments provided in this application, reference is made to Figure 1 , Figure 2 and Figure 4 The locking member 141 is rotatably connected to the first operating portion 1122 via the second connecting shaft 142. The locking member 141 has an abutment portion 1411 extending in the direction of the locking groove 12121. The locking groove 12121 is arranged on the side of the second connecting portion 1212 away from the first extruding portion 1111. The side wall of the abutment portion 1411 abuts against the inner wall of the locking groove 12121 to limit the mutual rotation of the first connecting portion 1121 and the second connecting portion 1212.

[0044] In this way, when the locking member 141 abuts against the locking groove 12121, it will not affect the clamping and squeezing of the pipe 2 by the first extrusion part 1111 and the second extrusion part 1211, and the user can operate the first operating part 1122 and the second operating part 1213 to approach each other, so that when the first extrusion part 1111 and the second extrusion part 1211 clamp and squeeze the pipe 2, it is more convenient to operate the locking member 141 to rotate and make the locking member 141 abut against the locking groove 12121.

[0045] It should be noted that the locking mechanism 14 has two states, namely, when the abutting portion 1411 abuts against the locking groove 12121, the relative position of the first extrusion portion 1111 and the second extrusion portion 1211 is fixed. When the abutting portion 1411 does not abut against the locking groove 12121, the first extrusion portion 1111 and the second extrusion portion 1211 can move relative to each other. The second connecting shaft 142 can be of various types, which are not limited here, and can be, for example, a rivet.

[0046] In addition, the shapes of the abutment portion 1411 and the locking groove 12121 can be various, which are not limited here. For example, they can be triangles, rectangles, waist shapes or irregular shapes, and the shapes of the locking groove 12121 can be various, which are not limited here.

[0047] In some embodiments provided in this application, reference is made to Figure 1 , Figure 2 and Figure 4 The abutment portion 1411 contacts the side wall of the locking groove 12121 and gradually moves away from the second connection portion 1212. The bottom surface of the locking groove 12121 is arc-shaped, and an arc chamfer is provided at the connection between the side wall of the locking groove 12121 and the adjacent side surface.

[0048] In this way, the contact portion 1411 can be slid into the groove more conveniently, and can also be slid out of the groove more conveniently, so as to avoid the locking member 141 from getting stuck and the wear of the locking member 141 can be avoided.

[0049] It should be noted that the locking groove 12121 can be various types of grooves, which are not limited here. For example, the locking groove 12121 can be a through groove, which can facilitate the locking member 141 to slide into the locking groove 12121.

[0050] In addition, different vehicle models require different pipe 2 thicknesses and pipe 2 wall thicknesses, and when replacing liquid cooling system components, the clamp 1 is required to clamp and squeeze different types of pipes 2 to increase the applicability of the clamp 1.

[0051] In some embodiments provided in this application, reference is made to Figure 1 , Figure 4 and Figure 5 An arc chamfer is provided at the connection between the side of the second connecting portion 1212 away from the second extruding portion 1211 and the adjacent side, and there are multiple locking grooves 12121, and the multiple locking grooves 12121 are evenly arranged on the arcuate side of the second connecting portion 1212 away from the first extruding portion 1111.

[0052] In this way, the locking mechanism locks the first extrusion portion 1111 and the second extrusion portion 1211 of the clamp 1 at different relative positions, so that when replacing parts of the liquid cooling system, the clamp 1 can clamp and squeeze different types of pipes 2, so that the locking member 141 can abut against the inner wall of different locking grooves 12121 according to the different thicknesses and wall thicknesses of the pipes 2. The applicability of the clamp 1 is improved.

[0053] It should be noted that when the diameter of the pipe 2 is large or the wall thickness of the pipe 2 is thick, the locking member 141 can abut against the abutment groove closer to the second operating portion 1213, and when the diameter of the pipe 2 is small or the wall thickness of the pipe 2 is thin, the locking member 141 can abut against the abutment groove farther from the second operating portion 1213. In addition, the clamp 1 can clamp pipes 2 of different thicknesses, where the diameter of the pipe 2 is L, where L≤35 mm, for example, L=2 mm, L=5 mm, L=7 mm or L=10 mm.

[0054] In addition, when repairing the vehicle cooling system, after replacing the liquid cooling system components, the locking member 141 needs to be rotated to keep the abutting portion 1411 away from the side wall of the locking groove 12121 so that the first pressure rod structure 11 and the second rod structure can rotate relatively.

[0055] In some embodiments provided in this application, reference is made to Figure 1 , Figure 2 and Figure 4The locking member 141 has an unlocking portion 1412 in a direction away from the first extrusion portion 1111. The unlocking portion 1412 extends in a direction away from the first extrusion portion 1111. The end of the unlocking portion 1412 extends in a direction away from the second extrusion portion 1211. The unlocking portion 1412 is used to operate the locking member 141 to rotate so that the abutting portion 1411 is away from the locking groove 12121.

[0056] In this way, when the user holds the first operating part 1122 and the second operating part 1213, it is more convenient to move the unlocking part 1412, so that the locking member 141 rotates to make the abutting part 1411 move away from the side wall of the locking groove 12121, and the first pressure rod structure 11 and the second pressure rod structure 12 are unlocked, so that the first extrusion part 1111 and the second extrusion part 1211 can move relative to each other.

[0057] It should be noted that the user can hold the unlocking part 1412 at the same time when holding the first operating part 1122 and the second operating part 1213, so that it is close to the first operating part 1122. That is, when the user applies force to the first operating part 1122 with the thumb and the other four fingers apply force to the second operating part 1213, the user can also apply force to the unlocking part 1412 with the thumb at the same time; when the user applies force to the second operating part 1213 with the thumb and the other four fingers apply force to the first operating part 1122, the user can also apply force to the unlocking part 1412 with the other four fingers at the same time.

[0058] In addition, a recovery member 143 may be provided to rotate the locking member 141 in the opposite direction after the unlocking portion 1412 is driven by the force to drive the abutting portion 1411 to rotate away from the locking groove 12121 , so that the abutting portion 1411 abuts against the inner wall of the locking groove 12121 again.

[0059] In some embodiments provided in this application, reference is made to Figure 1 and Figure 4 The locking mechanism 14 further includes a restoring member 143 , which is connected to the locking member 141 . When the unlocking portion 1412 is driven by the force to drive the abutting portion 1411 to rotate, the restoring member 143 applies a restoring force to the abutting portion 1411 to approach the locking groove 12121 .

[0060] In this way, after the unlocking portion 1412 is forced to drive the abutting portion 1411 to rotate away from the locking groove 12121, when the pliers 1 is clamped, the locking member 141 automatically rotates in the opposite direction, so that the abutting portion 1411 abuts against the inner wall of the locking groove 12121 again, so as to achieve self-locking. When the pliers 1 is in an idle state and a clamping state, the first pressure rod structure 11 and the second pressure rod structure 12 are automatically locked to limit the relative movement of the first extrusion portion 1111 and the second extrusion portion 1211.

[0061] It should be noted that the restoring member 143 can be a spring. For example, the restoring member 143 can be a torsion spring, which is sleeved on the second connecting shaft 142. One end of the torsion spring abuts against the side of the first operating part 1122 away from the locking member 141, and the other end abuts against the side of the unlocking part 1412 away from the first operating part 1122.

[0062] In addition, after the clamp 1 clamps the pipe 2, the pipe 2 gradually flattens. If there is a clamp between the first extrusion portion 1111 and the second extrusion portion 1211, the inner wall of the pipe 2 may not fit completely, and there are pores in the pipe, which cannot block the flow of liquid in the pipe 2. In some embodiments provided in the present application, the first extrusion portion 1111 is parallel to the side opposite to the first extrusion portion 1111.

[0063] In some embodiments provided in this application, reference is made to Figure 1 , Figure 3 and Figure 5 The first pressure rod structure 11 includes an extrusion block 111 and a first pressure rod 112. The extrusion block 111 is hinged to the first end of the first pressure rod 112. The side of the extrusion block 111 facing the second extrusion portion 1211 is a first extrusion surface 11111, and the side of the second extrusion portion facing the first extrusion portion 1111 is a second extrusion surface 12111. The first extrusion surface 11111 and the second extrusion surface 12111 are parallel to each other.

[0064] In this way, the inner wall of the pipe 2 can be completely fitted, so that there are no pores in the pipe, and the flow of liquid in the pipe 2 is completely blocked. The extrusion block 111 hinged on the first pressure rod 112 can ensure that the extrusion block 111 can rotate when clamping pipes 2 of different thicknesses, adjust its own angle, and always ensure that the first extrusion surface 11111 on the extrusion block 111 is parallel to the second extrusion surface 12111, which can achieve 100% interception of the pipe 2. The clamping effect of the clamp 1 is improved, the water-stopping ability of the clamp 1 on the pipe 2 is improved, and the applicability of the use of pipes 2 of different thicknesses and thicknesses is improved. It can further prevent the antifreeze in the cooling system from flowing out during the replacement of parts, avoid waste and environmental pollution, and reduce the subsequent manual exhaust work of the cooling system, thereby improving the efficiency of replacing parts.

[0065] It should be noted that after the clamp 1 clamps the pipe 2, the pipe 2 gradually flattens until the inner wall fits, and the cross section of the pipe 2 is finally oblong. The first extrusion surface 11111 and the second extrusion surface 12111 are arranged opposite to each other, and the shapes and sizes of the first extrusion surface 11111 and the second extrusion surface 12111 can be the same or different, and there is no limitation here. For example, the projections of the first extrusion surface 11111 and the second extrusion surface 12111 can overlap completely or partially.

[0066] In some embodiments provided in the present application, the second pressure rod structure 12 includes an extrusion block 111 and a second pressure rod 121, the extrusion block 111 is hinged to the first end of the second pressure rod 121, the side of the extrusion block 111 facing the first extrusion portion 1111 is the second extrusion surface 12111, the side of the first extrusion portion facing the second extrusion portion 1211 is the first extrusion surface 11111, and the first extrusion surface 11111 and the second extrusion surface 12111 are parallel to each other.

[0067] In addition, the first end of the first pressure rod 112 can be connected to multiple positions of the extrusion block 111 , which is not limited here. For example, the first end of the first pressure rod 112 can be connected to a side surface of the extrusion block 111 .

[0068] In some embodiments provided in this application, reference is made to Figure 2 and Figure 3 The extrusion block 111 is provided with a receiving groove 1112 toward the first pressure rod 112, and corresponding coaxial connecting holes are provided on the groove wall of the receiving groove 1112 and the first end of the first pressure rod 112, and the extrusion block 111 is hingedly connected to the first end of the first pressure rod 112 through the connecting hole via the third connecting shaft 113. In this way, the first pressure rod 112 can be partially accommodated in the receiving groove 1112, so that the connection between the extrusion block 111 and the first pressure rod 112 is more stable, so that the first pressure rod 112 is subjected to a more balanced force when applying force to the extrusion block 111, and the clamping and extruding pipe 2 is more stable.

[0069] It should be noted that the third connecting shaft 113 can be of various types without limitation herein, and for example, can be a rivet.

[0070] In addition, the accommodating groove 1112 can be a through groove, which is arranged on the side surface opposite to the first extrusion surface 11111, and avoidance grooves can be arranged at both ends of the two side walls of the accommodating groove 1112, which can prevent the first pressure rod 112 from colliding with the two side walls when swinging.

[0071] In addition, the clamp 1 can be made of a variety of metal materials, which are not limited here, and can be steel for example. However, the pipe 2 is made of a flexible material, and the metal clamp 1 can easily cause the outer surface of the pipe 2 to be worn, scratched or even damaged when clamping and squeezing the pipe 2.

[0072] In some embodiments provided in this application, reference is made to Figure 1 , Figure 2 and Figure 3 The first extrusion part 1111 and the second extrusion part 1211 are covered with flexible parts to prevent the outer surface of the pipe 2 from being worn. In this way, the outer surface of the pipe 2 can be prevented from being worn, scratched or even damaged when the metal clamp 1 is clamping and extruding the pipe 2.

[0073] It should be noted that the flexible member can be made of a variety of flexible materials, which are not limited here. For example, the flexible member can be a rubber member. The first extrusion surface 11111 of the extrusion block 111 can be covered with a rubber member, and the second extrusion portion 1211 can be sleeved with a rubber sleeve.

[0074] The above are only implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. A clamp (1), characterized in that: include: A first compression rod structure (11), wherein a first end of the first compression rod structure (11) has a first extrusion portion (1111); a second pressure rod structure (12), wherein the first pressure rod structure (11) and the second pressure rod structure (12) are rotatably connected, and the first end of the second pressure rod structure (12) has a second extrusion portion (1211) opposite to the first extrusion portion (1111), and the first extrusion portion (1111) and the second extrusion portion (1211) are used to clamp and squeeze the pipeline (2) to block the flow of the medium in the pipeline (2); A locking mechanism (14), wherein the locking mechanism (14) comprises a locking member (141), wherein the locking member (141) is movably connected to the first pressure rod structure (11), and a locking groove (12121) is provided on the second pressure rod structure (12); when the first pressure rod structure (11) is rotated to a target position relative to the second pressure rod structure (12), the end of the locking member (141) facing the locking groove (12121) abuts against an inner wall of the locking groove (12121) to lock the relative positions of the first pressure rod structure (11) and the second pressure rod structure (12).

2. The pliers (1) according to claim 1, characterized in that The first pressure rod structure (11) is provided with a first connection part (1121) at a position away from the end, and the second pressure rod structure (12) is provided with a second connection part (1212) corresponding to the first connection part (1121) at a position away from the end, and the first connection part (1121) and the second connection part (1212) are rotationally connected via a first connection shaft (13); the second end of the first pressure rod structure (11) has a first operating part (1122), and the second end of the second pressure rod structure (12) has a second operating part (1213), and the first operating part (1122) and the second operating part (1213) are used to operate the first pressure rod structure (11) and the second pressure rod structure (12) to move relative to each other, so as to make the first extrusion part (1111) and the second extrusion part (1211) move relative to each other.

3. The pliers (1) according to claim 2, characterized in that The locking member (141) is rotatably connected to the first operating portion (1122) via a second connecting shaft (142); the locking member (141) has an abutment portion (1411) extending in the direction of the locking groove (12121); the locking groove (12121) is arranged on the side of the second connecting portion (1212) away from the first extrusion portion (1111); the side wall of the abutment portion (1411) abuts against the inner wall of the locking groove (12121) to limit the mutual rotation of the first connecting portion (1121) and the second connecting portion (1212).

4. The pliers (1) according to claim 3, characterized in that The abutment portion (1411) contacts the side wall of the locking groove (12121) and gradually moves away from the second connection portion (1212); the bottom surface of the locking groove (12121) is arc-shaped; and an arc-shaped chamfer is provided at the connection between the groove side wall of the locking groove (12121) and the adjacent side surface.

5. The pliers (1) according to claim 2, characterized in that An arc chamfer is provided at the connection between the side surface of the second connecting portion (1212) away from the second extrusion portion (1211) and the adjacent side surface, and there are multiple locking grooves (12121), and the multiple locking grooves (12121) are evenly arranged on the arc-shaped side surface of the second connecting portion (1212) away from the first extrusion portion (1111).

6. The pliers (1) according to claim 3, characterized in that The locking member (141) has an unlocking portion (1412) in a direction away from the first extrusion portion (1111), and the unlocking portion (1412) extends in a direction away from the first extrusion portion (1111). An end of the unlocking portion (1412) extends in a direction away from the second extrusion portion (1211), and the unlocking portion (1412) is used to operate the locking member (141) to rotate so that the abutting portion (1411) is away from the locking groove (12121).

7. The pliers (1) according to claim 6, characterized in that The locking mechanism (14) further comprises a restoring member (143), wherein the restoring member (143) is connected to the locking member (141), and when the unlocking member (1412) is subjected to a force to drive the abutting member (1411) to rotate, the restoring member (143) applies a restoring force to the locking member (141) to bring the abutting member (1411) close to the locking groove (12121).

8. The pliers (1) according to claim 1, characterized in that The first pressure rod structure (11) comprises an extrusion block (111) and a first pressure rod (112); the extrusion block (111) is hinged to the first end of the first pressure rod (112); the side surface of the extrusion block (111) facing the second extrusion portion (1211) is a first extrusion surface (11111); the side surface of the second extrusion portion (1211) facing the first extrusion portion (1111) is a second extrusion surface (12111); the first extrusion surface (11111) and the second extrusion surface (12111) are parallel to each other.

9. The pliers (1) according to claim 8, characterized in that The extrusion block (111) is provided with a receiving groove (1112) in the direction of the first pressure rod (112), and corresponding coaxial connecting holes are provided on the groove wall of the receiving groove (1112) and the first end of the first pressure rod (112), and the extrusion block (111) is hingedly connected to the first end of the first pressure rod (112) through the connecting hole via a third connecting shaft (113).

10. The forceps (1) according to any one of claims 1 to 9, characterized in that: The first extrusion portion (1111) and the second extrusion portion (1211) are covered with flexible parts to prevent the outer surface of the pipe (2) from being worn.

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