CN210968520U

CN210968520U - Clamp forceps

Info

Publication number: CN210968520U
Application number: CN201921803138.XU
Authority: CN
Inventors: 王伟
Original assignee: Hangzhou Lianhe Tool Manufacturing Co ltd; Hangzhou Great Star Tools Co Ltd
Current assignee: Hangzhou Lianhe Tool Manufacturing Co ltd; Hangzhou Great Star Tools Co Ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-07-10
Anticipated expiration: 2029-10-25

Abstract

The application discloses a clamp, which relates to the field of manual tools, and comprises a first clamp body and a second clamp body which are fixed in an intersecting way through a pivot mechanism, wherein a jaw is formed at one end of the pivot mechanism, and the other ends of the pivot mechanism are respectively provided with respective handles; and a stop mechanism is arranged at any position of the first clamp body and/or the second clamp body to prevent the two handles of the first clamp body and the second clamp body from being closed continuously. The clamp of this application is through setting up backstop mechanism, when pressing from both sides mouthful slip or accidentally break away from the work piece, blocks the handle of clamp and closes completely, prevents or avoids the hand easily to be pressed from both sides the wound.

Description

Clamp forceps

Technical Field

The application relates to the field of hand tools, in particular to a clamp.

Background

The clamp is a light and small manual tool and is widely used for clamping or mounting simple objects.

The traditional pliers are provided with two intersected pliers arms which can rotate around a pivot of an intersection point to achieve the purpose of clamping an object, a jaw for clamping the object is formed above the intersection point, and a pliers handle for holding is arranged below the intersection point. However, the expandable size of the jaws of such pliers is fixed and the range of sizes of articles that can be gripped is limited.

Therefore, a pipe wrench with adjustable jaw size is disclosed in chinese patent CN45077167U, which comprises an upper handle and a lower handle, wherein the front end of the lower handle is provided with an upper biting tooth, the front end of the upper handle is provided with a lower biting tooth, the lower handle penetrates through the upper handle, the upper and lower biting teeth are arranged in a crossing manner to form a lower biting tooth handle with a tooth socket, the inner wall of the tooth socket is provided with a tooth belt, the upper handle is hinged with a tooth block, one side of the tooth block is provided with teeth connected with the tooth belt and moves along the tooth belt in a single direction, the other side of the tooth block supports against a spring, the spring supports against the lower handle, and the upper handle is provided with a shifting piece hinged with the tooth block. This application pipe wrench is in work, and the handle slides to the direction of clenching the tooth and tightening up along the tooth's socket in the promotion, and the smooth slip that goes up at this time bites the tooth and also can clenches from top to bottom, and owing to be single direction motion, the tooth piece can't oneself slide down along the cingulum again, when the tooth is chewed from top to bottom to needs loosen, stirs the plectrum, stirs fast drive tooth piece and cingulum and parts, just so can slide down the upper handle along the tooth's socket to it parts to bite the tooth.

However, since the handle is usually held in one hand and between the palm pad at the base of the thumb and the fingers, if the nip slips or accidentally disengages from the workpiece, the handle will quickly close in an uncontrolled manner, easily resulting in a pinched hand.

Accordingly, those skilled in the art have endeavored to develop a clamp capable of preventing a hand from being injured by a clamp in the case where a jaw slides or is accidentally detached from a workpiece.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present application is that the hand is easily injured by clamping in case that the clamping opening slides or accidentally disengages from the workpiece.

To achieve the above object, the present application provides a clamp comprising: the first clamp body and the second clamp body are fixed in an intersecting manner through a pivot mechanism, a jaw is formed at one end of the pivot mechanism by the first clamp body and the second clamp body, respective handles are respectively arranged at the other end of the pivot mechanism, and the first clamp body and the second clamp body mutually rotate around the pivot mechanism to clamp the jaw; the first forceps body and/or the second forceps body are/is provided with a stop mechanism, so that the handle of the first forceps body and the handle of the second forceps body can be stopped by the stop mechanism when the handles are closed, and a gap exists between the handle of the first forceps body and the handle of the second forceps body.

Optionally, the stopping mechanism of the first caliper body is a first protrusion stopping mechanism, and the stopping mechanism of the second caliper body is a second protrusion stopping mechanism;

the first bulge stopping mechanism is positioned on the first clamp body from the clamp mouth to the extreme end of the handle of the first clamp body and faces the second clamp body; and/or the second bulge stopping mechanism is positioned on the second clamp body from the clamp mouth to the position of the extreme end of the handle of the second clamp body, which is towards the first clamp body;

the first bulge stopping mechanism is contacted and clamped on the second clamp body at the opposite end in the process of clamping or closing the jaws and/or the second bulge stopping mechanism is contacted and clamped on the first clamp body at the opposite end in the process of clamping or closing the jaws so as to prevent the two handles of the first clamp body and the second clamp body from being closed continuously.

Optionally, the first clamp body comprises a first handle, a first jaw and a first shank connecting the first handle and the first jaw; the second clamp body comprises a second handle, a second clamp claw and a second shank part connecting the second handle and the second clamp claw;

the first jaw and the second jaw form the jaw;

optionally, the first protrusion stopping mechanism is located on a side of the first shank portion of the first caliper body and faces the second caliper body; and/or the presence of a gas in the gas,

the second protrusion stopping mechanism is located on the side face of the second shank portion of the second clamp body and faces the first clamp body.

Optionally, the first bump stop mechanism is located on the first jaw and close to the first shank and faces the second clamp body; or the first bulge stopping mechanism is positioned on the first shank part, is close to the side surface of the first handle and faces the second clamp body; or the first bulge stopping mechanism is positioned on the side surface of the junction of the first shank and the first handle and faces the second clamp body; or the first bulge stopping mechanism is positioned on the first shank part, is close to the side surface of the first jaw and faces the second jaw body; or the first bulge stopping mechanism is positioned on the side surface of the junction of the first shank and the first jaw and faces the second clamp body; or the first bulge stopping mechanism is positioned on the side surface of the middle position of the first shin part and faces the second clamp body; and/or the presence of a gas in the gas,

the second bulge stopping mechanism is positioned on the second jaw, is close to the second shank and faces the first clamp body; or the second bulge stopping mechanism is positioned on the second shank part, is close to the side surface of the second handle and faces the first clamp body; or the second bulge stopping mechanism is positioned on the side surface of the junction of the second shank and the second handle and faces the first clamp body; or the second bulge stopping mechanism is positioned on the second shank part, is close to the side surface of the second jaw and faces the first jaw body; or the second bulge stopping mechanism is positioned on the side surface of the junction of the second shank and the second jaw and faces the first clamp body; or the second bulge stopping mechanism is positioned on the side surface of the middle position of the second shin part and faces the first clamp body.

the first jaw and the second jaw form the jaw;

the first bulge stopping mechanism is positioned on the side surface of the first handle of the first clamp body and faces the second clamp body; and/or the presence of a gas in the gas,

the second protruding stop mechanism is located on the side face of the second handle of the second forceps body and faces the first forceps body.

Optionally, the first protruding stopping mechanism is located on the first handle close to the side of the first shank and faces the second clamp body; or the first bulge stopping mechanism is positioned on the side surface of the middle position of the first handle and faces the second clamp body; or the first bulge stopping mechanism is positioned on the side of the tail end position of the first handle and faces the second clamp body; and/or the presence of a gas in the gas,

the second bulge stopping mechanism is positioned on the side surface, close to the second shin part, of the second handle and faces the first clamp body; alternatively, the second bump stop mechanism may be located on the medial side of the second handle and facing the first pincer body; or the second protrusion stopping mechanism is positioned on the side of the tail end position of the second handle and faces the first clamp body.

Optionally, the first bump stop mechanism and/or the second bump stop mechanism is a bump cylinder, a bump square column, or an irregularly shaped bump column.

the first jaw and the second jaw form the jaw;

the first protruding stopping mechanism is a protruding stopping edge which is positioned on the side surface of the first handle close to the first shank and faces the second clamp body or is positioned on the side surface of the junction of the first handle and the first shank and faces the second clamp body; and/or the presence of a gas in the gas,

the second protruding stopping mechanism is a protruding stopping edge which is located on the side surface, close to the second shank, of the second handle and faces the first clamp body, or is located on the side surface of the junction of the second handle and the second shank and faces the first clamp body.

Optionally, a first anti-pinch rib is arranged on the first clamp body and at a position corresponding to the second protrusion stopping mechanism, so that the second protrusion stopping mechanism is contacted and clamped in the occlusion or closing process of the clamp jaws; and/or the presence of a gas in the gas,

and a second anti-clamping retaining edge is arranged on the second clamp body and at a position corresponding to the first convex stopping mechanism, so that the clamp jaws contact and clamp the first convex stopping mechanism in the occlusion or closing process.

Optionally, the first anti-pinch rib and/or the second anti-pinch rib are made of an elastic material.

Optionally, the first bump stop mechanism and/or the second bump stop mechanism are made of an elastic material.

the first jaw and the second jaw form the jaw;

a first elongated slot which is hollow and penetrates is formed in the first shank of the first clamp body along the long-strip direction of the first shank, and an inclined lower stopping edge is formed on the inner side surface, close to the first handle, of the first elongated slot;

the second jaw of the second clamp body penetrates through the first long groove of the first clamp body and then is arranged in a crossed manner with the first clamp body, and the pivot mechanism is used for fixing the first clamp body and the second clamp body in a crossed manner;

when the first handle and the second handle move oppositely to be close to be closed, the inclination angle lower stopping edge is contacted with and clamped on the second handle of the second clamp body or the junction of the second shank and the second handle or the second shank, and the first handle and the second handle are prevented from being closed continuously.

Optionally, a second elongated slot penetrating through the second shank of the second caliper body in a hollow manner is formed in the second shank along the longitudinal direction of the second shank;

a first through hole is formed in the first shank of the first clamp body and is close to the first clamp claw or the junction of the first clamp claw and the first shank;

the second claw of the second clamp body penetrates through the first long groove of the first clamp body and then is arranged in a crossed mode with the first clamp body, and the pivot mechanism penetrates through the first through hole and then penetrates through the second long groove of the second shank portion to enable the first clamp body and the second clamp body to be fixed in a crossed mode relatively.

Optionally, an inner side surface of the first elongated slot adjacent to the first jaw has an inclined upper stop rib;

when the first handle and the second handle move oppositely to be close to be closed, the inclined upper stop flange is contacted and clamped on the second shank part, and the first handle and the second handle are prevented from being closed continuously.

Optionally, the angle of inclination of the lower stop edge is 30-80 °.

Optionally, the angle of inclination of the upper stop rib is 30 ° to 80 °.

Optionally, an anti-pinch rib is arranged on the second shank or the second handle of the second clamp body and at a position corresponding to the inclined lower stop rib, and when the first handle and the second handle move towards each other to close, the inclined lower stop rib contacts and is clamped on the anti-pinch rib, so that the first handle and the second handle cannot be closed continuously.

the first jaw and the second jaw form the jaw;

a first elongated slot which is hollow and penetrates is formed in the first shank of the first clamp body along the longitudinal direction of the first shank;

a pin shaft transversely penetrating through the first long groove is arranged at the position, close to the first handle, of the first long groove;

when the first handle and the second handle move oppositely to be close to be closed, the pin shaft is contacted with and clamped on the second handle of the second clamp body or the junction of the second shank and the second handle or the second shank, and the first handle and the second handle are prevented from being closed continuously.

Optionally, the pin shaft is integrally formed with the first shin portion.

Optionally, two side surfaces of the first shank portion, which are provided with the first long groove 1523, are respectively provided with a fixing hole, and the pin shaft penetrates through the first long groove and then is fixed in the two fixing holes.

Optionally, a protruding anti-pinch rib is arranged on the second shank or the second handle of the second clamp body and at a position corresponding to the pin shaft, and when the first handle and the second handle move towards each other to close, the pin shaft contacts and is clamped on the anti-pinch rib, so that the first handle and the second handle cannot be closed continuously.

Optionally, the anti-pinch ribs are made of an elastic material.

Optionally, the anti-pinch rib is located on the second shank of the second forceps body and close to the second handle, or located on the second handle and close to the second shank; or at the junction of the second shank and the second handle.

The stop mechanism is additionally arranged on the forceps body, when the jaw of the forceps body is suddenly loosened or the clamped object is accidentally damaged or the handle caused by separation is rapidly closed, the handle blocking the forceps body is completely closed through the stop mechanism, so that a gap is always reserved between the handles of the forceps body, and the hand is prevented or avoided being injured by the handle.

The conception, specific structure and technical effects of the present application will be further described in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present application.

Drawings

FIG. 1 is a schematic view of a clamp according to an embodiment of the present application;

FIG. 2 is a schematic view of another alternative forceps jaw configuration of the present application with the jaws closed;

FIG. 3 is a schematic illustration of the pliers of FIG. 2 in a disassembled configuration;

FIG. 4 is a schematic view of the pliers of FIG. 2 with the jaws of the pliers pulled apart;

FIG. 5 is a schematic view of the pliers of FIG. 2 shown with the jaws open;

FIG. 6 is a schematic view of another alternative forceps jaw configuration of the present application with the jaws closed;

FIG. 7 is a schematic illustration of the pliers of FIG. 6 in a disassembled configuration;

FIG. 8 is a schematic view of the pliers of FIG. 6 with the jaws of the pliers pulled apart;

FIG. 9 is a schematic view of another alternative forceps jaw configuration of the present application with the jaws closed;

FIG. 10 is a schematic view of the pliers of FIG. 9 with the jaws of the pliers pulled apart;

FIG. 11 is a schematic view of the pliers of FIG. 9 with the jaws open;

FIG. 12 is a schematic view of an alternative forceps device of the present application with the jaws closed;

FIG. 13 is a schematic illustration of the pliers of FIG. 12 in a disassembled configuration;

FIG. 14 is a schematic view of the pliers of FIG. 12 with the jaws of the pliers being enlarged;

FIG. 15 is a schematic view of another alternative forceps embodying the present disclosure shown with the jaws closed;

FIG. 16 is a schematic illustration of the pliers of FIG. 15 in a disassembled configuration;

FIG. 17 is a diagrammatic view of the pliers of FIG. 15 with the jaws of the pliers pulled apart.

Detailed Description

The technical contents of the preferred embodiments of the present application will be more clearly and easily understood by referring to the drawings attached to the specification. The present application may be embodied in many different forms of embodiments and the scope of the present application is not limited to only the embodiments set forth herein.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the size and thickness of each component are not limited in the present application. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.

The embodiment of the application discloses a clamp which can be a water pump clamp, a pipe clamp or other clamps. Wherein two pincers bodies can be designed into hook-shaped, and the inner side edge is provided with teeth, so that the clamping and the occlusion are convenient. The clamp body and the handle can be integrally formed or connected together through a connecting means.

As shown in fig. 1, which is a schematic structural diagram of a clamp according to an embodiment of the present application, the clamp includes: the first forceps body 10 and the second forceps body 20 are disposed to intersect with each other, for example, the first forceps body 10 and the second forceps body 20 are fixed to each other by a pivot mechanism 30, the first forceps body 10 and the second forceps body 20 form a jaw at one end of the pivot mechanism 30, the other end of the pivot mechanism 30 is a handle, and the first forceps body 10 and the second forceps body 20 rotate relative to each other around the pivot mechanism 30 to clamp the jaw.

The pivot mechanism 30 may be a pivot, for example, the pivot may be a pivot pin or a pivot bolt, wherein the pivot is a cylinder.

The first clamp body 10 comprises a first handle 101, a first jaw 105 and a first shank 103 connecting the first handle 101 and the first jaw 105; the second jaw body 20 includes a second handle 202, a second jaw 206, and a second shank portion 204 connecting the second handle 202 and the second jaw 206.

The first jaw 105 and the second jaw 206 form a jaw, a junction of the first jaw 105 and the first shin portion 103 is bent to form a hook shape, and a junction of the second jaw 206 and the second shin portion 204 is bent to form a hook shape. In another embodiment of the present application, the first jaw 105 and the second jaw 206 have oppositely directed first and second exposed

surfaces

107, 208, respectively, and the first and second exposed

surfaces

107, 208 have serrations to facilitate secure clamping of the workpiece.

A hollow and penetrating long groove 203 is formed in the second leg portion 204 of the second caliper body 20 along the longitudinal direction of the second leg portion 204, the long groove 203 may be a long groove or a substantially long groove, for example, a prolate elliptical groove, and the inner surface of the long groove 203 has a toothed belt.

A first through hole is formed in the first caliper body 10 near the first jaw 105 or at the junction between the first jaw 105 and the first shank 103, the pivot mechanism 30 passes through the first through hole and then continues to pass through the elongated slot 203 of the second shank 204, so as to relatively fix the first caliper body 10 and the second caliper body 20, wherein the first caliper body 10 is fixed to the pivot mechanism 30, and the second caliper body 20 rotates around the pivot mechanism 30, so that the first caliper body 10 and the second caliper body 20 can not only rotate around the pivot mechanism 30 to open or close the jaw formed by the first jaw 105 and the second jaw 206, but also move relative to each other along the elongated direction of the elongated slot 203, so that the jaw can be pulled up or pulled down, the clamping fixture is suitable for clamping workpieces with different sizes.

In another embodiment of the present application, the surface of the pivot mechanism 30 that rotates is smooth, for example, the surface of the pivot mechanism 30 that contacts the elongated slot 203 is a smooth surface.

In another embodiment of the present application, a surface of the pivot mechanism 30 contacting the long groove 203 has a toothed belt engaged with the toothed belt on the inner surface of the long groove 203, so that when the toothed belt of the pivot mechanism 30 and the toothed belt of the long groove 203 are engaged with each other, the pivot mechanism 30 and the second jaw 20 are fixed, and the first jaw 10 can rotate around the pivot mechanism 30 to open or close the jaw formed by the first jaw 105 and the second jaw 206.

When the jaw needs to be enlarged, the first forceps body 10 drives the pivot mechanism 30 to disengage from the toothed belt on the inner surface of the long slot 203 of the second forceps body 20, and then the first forceps body 10 is pulled downward from the uppermost position of the long slot 203, so that the jaw formed by the first jaw 105 and the second jaw 206 is enlarged. Thus, when the jaws are opened, the article is placed into the jaws, and then the jaws are conveniently reduced to a state of just holding the article.

In another embodiment of the present application, the teeth on the toothed belt of the inner side surface of the long groove 203 and the teeth on the rotating surface of the pivot mechanism 30 are one-way ratchet teeth that engage with each other, i.e., the teeth on the toothed belt of the inner side portion of the long groove 203 are obliquely oriented in one direction, and the teeth on the rotating surface of the pivot mechanism 30 are obliquely oriented in the opposite direction to the teeth on the toothed belt of the inner side surface of the long groove 203. Thus, when a force is applied in the opposite direction of the inclination of the teeth on the inner side surface of the long groove 203, i.e. there is a barb between the teeth on the surface of the pivot mechanism 30 and the teeth on the inner side of the long groove 203, the two parts separate to allow the pivot mechanism 30 to slide in the long groove 203 when an external force is applied. In the direction in which the teeth on the inner side surface of the long groove 203 are inclined, the pivot mechanism 30 can automatically disengage from the teeth on the toothed belt on the inner side of the long groove 203 without intervention of external force, thereby realizing unidirectional quick sliding.

The pliers can be provided with a first protrusion stopping mechanism (not shown) at any position on the first pliers body 10 from the pivot mechanism 30 to the extreme end of the handle of the first pliers body 10 toward the second pliers body 20 and/or a second protrusion stopping mechanism (not shown) at any position on the second pliers body 20 from the pivot mechanism 30 to the extreme end of the handle of the second pliers body 20 toward the first pliers body 10, wherein the first protrusion stopping mechanism contacts and is clamped on the second pliers body 20 at the opposite end during the engagement or closing process of the jaws and/or the second protrusion stopping mechanism contacts and is clamped on the first pliers body 10 at the opposite end during the engagement or closing process of the jaws, and the first handle 101 of the first pliers body 10 and the second handle 202 of the second pliers body 20 are prevented from being closed continuously, i.e. the distance between said first handle 101 and said second handle 202 may be limited to be still larger than a certain threshold value when the closure is blocked, so as to prevent or avoid the user's hand gripping said first handle 101 and said second handle 202 from being injured when said jaws accidentally suddenly slide off the workpiece or suddenly loosen or the clamped object is accidentally damaged or detached.

For example, the first bump stop mechanism is located on the side of the first shank 103 of the first caliper body 10 facing the second caliper body 20 and/or the second bump stop mechanism is located on the side of the second shank 204 of the second caliper body 20 facing the first caliper body 10.

For example, the first protrusion stopping mechanism may be located on the first shank 103 near the side of the first handle 101 and facing the second forceps body 20; alternatively, the first protrusion stopping mechanism may be located at the side of the junction between the first shank 103 and the first handle 101 and facing the second forceps body 20; alternatively, the first protrusion stopping mechanism may be located on the first shank portion 103 and close to the side of the first jaw 105 and facing the second clamp body 20; alternatively, the first protrusion stopping mechanism may be located on the side of the boundary between the first shank 103 and the first jaw 105 and facing the second clamp body 20; alternatively, the first protrusion stopping mechanism may be located on the middle position side of the first shin portion 103 and facing the second caliper body 20.

For example, the second bump stop mechanism may be located on the second shank portion 204 near the side of the second handle 202 and facing the first forceps body 10; alternatively, the second bump stop mechanism may be located at the side of the junction between the second shank 204 and the second handle 202 and facing the first caliper body 10; alternatively, the second bump stop mechanism may be located on the second shank portion 204 and close to the side of the second jaw 206 and facing the first caliper body 10; alternatively, the second bump stop mechanism may be located laterally at the intersection of the second shank portion 204 and the second jaw 206 and facing the first caliper body 10; alternatively, the second bump stopper mechanism may be located on the middle position side of the second leg portion 204 and facing the first caliper body 10.

In another embodiment of the present application, the first bump stop mechanism may be located on the side of the first handle 101 of the first forceps body 10 facing the second forceps body 20 and/or the second bump stop mechanism may be located on the side of the second handle 202 of the second forceps body 20 facing the first forceps body 10.

For example, the first protrusion stopping mechanism may be located on the first handle 101 near the side of the first shank 103 and facing the second clamp body 20; alternatively, the first protrusion stopping mechanism may be located at the side of the middle position of the first handle 101 and toward the second forceps body 20; alternatively, the first protrusion stopping mechanism may be located at the side of the end position of the first handle 101 and facing the second forceps body 20.

For example, the second bump stop mechanism may be located on the second handle 202 and facing the first forceps body 10 near the side of the second shank 204; alternatively, the second bump stop mechanism may be located on the middle position side of the second handle 202 and facing the first pincer body 10; alternatively, the second bump stop mechanism may be located laterally of the distal end of the second handle 202 and toward the first plier body 10.

In another embodiment of the present application, the first bump stop mechanism and/or the second bump stop mechanism may be a bump cylinder, a bump square, or an irregularly shaped bump cylinder.

In another embodiment of the present application, in order to limit the distance between the first handle 101 and the second handle 202 to be larger, a first anti-pinch rib (not shown) may be further provided on the first forceps body 10 at a position corresponding to the second protruding stop mechanism, so as to contact and catch the second protruding stop mechanism during the occlusion or closing process of the jaws; and/or, a second anti-pinch rib (not shown) may be disposed on the second body 20 at a position corresponding to the first bump stop mechanism to contact and catch the first bump stop mechanism during the snapping or closing of the jaws. The first anti-pinch rib and/or the second anti-pinch rib can be a raised baffle. When the first handle 101 and the second handle 202 move towards each other and close to each other, the first protruding stopping mechanism contacts and is clamped on the two anti-pinch flanges and/or the second protruding stopping mechanism contacts and is clamped on the first anti-pinch flanges, so that when the first jaw 105 and the second jaw 206 accidentally and suddenly slide off or suddenly loosen from a workpiece or a clamped object is accidentally damaged or separated, the hands held on the first handle 101 and the second handle 202 are prevented or avoided from being pinched.

In another embodiment of this application, for making have the buffering when protruding backstop mechanism is blocked, do not cause the shake of clamp, first protruding backstop mechanism the protruding backstop mechanism of second first prevent pressing from both sides the flange with at least one of the second prevents pressing from both sides the flange adopts elastic material to make, for example rubber, silica gel or plastics.

The first protruding stopping mechanism and the first anti-pinch rib are located in the above-mentioned embodiment, the structure of the first pincer body 10 can be respectively the same as or similar to the structure of the second protruding stopping mechanism and the second anti-pinch rib is located in the second pincer body 20, and the structures are equivalent structures.

For example, as shown in fig. 2-5, another clamp according to an embodiment of the present application includes: the forceps comprise a first forceps body 1 and a second forceps body 2, wherein the first forceps body 1 and the second forceps body 2 are arranged in an intersecting manner, for example, the first forceps body 1 and the second forceps body 2 are fixed relatively through a pivot mechanism 3, the first forceps body 1 and the second forceps body 2 form a jaw at one end of the pivot mechanism 3, the other end of the pivot mechanism 3 is provided with a handle respectively, and the first forceps body 1 and the second forceps body 2 rotate around the pivot mechanism 3 mutually to clamp the jaw.

The pivot mechanism 3 may be a pivot, for example, the pivot may be a pivot bolt or a pivot bolt, wherein the pivot is a cylinder.

The first clamp body 1 comprises a first handle 11, a first clamp claw 15 and a first shank 13 connecting the first handle 11 and the first clamp claw 15; the second forceps body 2 comprises a second handle 12, a second jaw 16 and a second shank 14 connecting the second handle 12 and the second jaw 16.

The first jaw 15 and the second jaw 16 form a jaw, a junction of the first jaw 15 and the first shank 13 is bent to form a hook shape, and a junction of the second jaw 16 and the second shank 14 is bent to form a hook shape. In another embodiment of the present application, the first jaw 15 and the second jaw 16 have oppositely directed first and second exposed surfaces 17 and 18, respectively, the first and second exposed surfaces 17 and 18 having serrations to facilitate secure clamping of the workpiece.

A hollow and penetrating long groove 23 is formed in the second leg portion 14 of the second caliper body 2 in the longitudinal direction of the second leg portion 14, the long groove 23 may be a long groove or a substantially long groove, for example, a prolate elliptical groove, and the inner surface of the long groove 23 has a toothed belt.

A first through hole 31 is formed in the first caliper body 1 near the first jaw 15 or at the junction of the first jaw 15 and the first shank 13, the pivot mechanism 3 passes through the first through hole 31 and then continues to pass through the elongated slot 23 of the second shank 14, so that the first caliper body 1 and the second caliper body 2 are relatively fixed, wherein the first caliper body 1 is fixed to the pivot mechanism 3, and the second caliper body 2 rotates around the pivot mechanism 3, so that the first caliper body 1 and the second caliper body 2 can not only rotate around the pivot mechanism 3 to each other to open or close the jaw formed by the first jaw 15 and the second jaw 16, but also move relative to each other along the corresponding elongated direction of the elongated slot 23, so that the distance between the jaws is increased or decreased, the clamping fixture is suitable for clamping workpieces with different sizes.

In another embodiment of the present application, the surface of rotation of the pivot mechanism 3 is smooth, for example, the surface of the pivot mechanism 3 contacting the long groove 23 is a smooth surface.

In another embodiment of the present application, a surface of the pivot mechanism 3 contacting the long groove 23 has a toothed belt engaged with the toothed belt on the inner surface of the long groove 23, so that when the toothed belt of the pivot mechanism 3 and the toothed belt of the long groove 23 are engaged with each other, the pivot mechanism 3 is fixed to the second jaw 2, and the first jaw 1 can rotate around the pivot mechanism 3 to open or close the jaw formed by the first jaw 15 and the second jaw 16.

When the jaw needs to be enlarged, the first forceps body 1 drives the pivot mechanism 3 to be separated from the toothed belt on the inner side surface of the long groove 23 of the second forceps body 2, and then the first forceps body 1 is pulled downwards from the uppermost part of the long groove 23, so that the jaw formed by the first jaw 15 and the second jaw 16 is enlarged. Thus, when the jaws are opened, the article is placed into the jaws, and then the jaws are conveniently reduced to a state of just holding the article.

In another embodiment of the present application, the teeth on the toothed belt of the inner side surface of the long groove 23 and the teeth on the rotating surface of the pivot mechanism 3 are one-way ratchet teeth that engage with each other, i.e., the teeth on the toothed belt of the inner side portion of the long groove 23 are obliquely oriented in one direction, and the teeth on the rotating surface of the pivot mechanism 3 are obliquely oriented in the opposite direction to the teeth on the toothed belt of the inner side surface of the long groove 23. Thus, when a force is applied in the opposite direction of the inclination of the teeth on the inner side surface of the long groove 23, i.e. there is a barb between the teeth on the surface of the pivot mechanism 3 and the teeth on the inner side of the long groove 23, the two separate from each other to make the pivot mechanism 3 slide in the long groove 23 when an external force is applied. In the direction of the inclination of the teeth on the inner surface of the long groove 23, the pivot mechanism 3 can automatically disengage from the teeth on the toothed belt on the inner side of the long groove 23, and no external interference is needed, so that unidirectional quick sliding is realized.

A convex stop block 26 facing the second forceps body 2 is arranged at the middle position of the first shank portion 13 of the first forceps body 1 or on the first shank portion 13 and near the first handle 11, the convex stop block 26 may be a convex cylinder, a convex square column or an irregularly-shaped convex column, and the convex stop block 26 and the first shank portion 13 may be integrally formed, or may be welded or adhered to the first shank portion 13.

When the jaws are engaged or closed, i.e. the first handle 11 and the second handle 12 move towards each other and close to each other, the raised stop block 26 contacts and is clamped on the second jaw body 2, for example, contact and jam on the second handle 12 or the second shank 14 or the intersection of the second handle 12 and the second shank 14, prevents the first handle 11 and the second handle 12 from continuing to close, i.e. the distance between said first handle 11 and said second handle 12 may be limited to remain above a certain threshold when closure is blocked, so that when the jaw formed by said first jaw 15 and said second jaw 16 accidentally suddenly slips off the workpiece or suddenly loosens or the clamped object is accidentally damaged or disengaged, preventing or avoiding pinching of the user's hand holding on the first handle 11 and the second handle 12.

In another embodiment of the present application, in order to limit the distance between the first handle 11 and the second handle 12 to be greater, optionally, a raised anti-pinch rib 27 may be disposed on the second shank 14 of the second forceps body 2 or on the second handle 12 corresponding to the position of the raised stop block 26, for example, the anti-pinch rib 27 may be disposed on the second shank 14 of the second forceps body 2 and near the position of the second handle 12, or the anti-pinch rib 27 may be disposed on the second handle 12 and near the position of the second shank 14, and the anti-pinch rib 27 may be a raised baffle or a raised edge or a protrusion.

When the jaws are engaged or closed, that is, the first handle 11 and the second handle 12 move towards each other to close, the raised stop block 26 contacts and is clamped on the anti-clamping rib 27, so that the first handle 11 and the second handle 12 cannot be closed continuously, and thus, when the first jaw 15 and the second jaw 16 accidentally slide off or suddenly loosen from a workpiece or a clamped object is accidentally damaged or separated, the hands of a user holding the first handle 11 and the second handle 12 are prevented or avoided from being clamped.

In another embodiment of the present application, in order to buffer the raised stop block 26 when it is jammed and not cause the shaking of the clamp, either or both of the raised stop block 26 and the anti-pinch rib 27 may be made of elastic material, such as rubber, silica gel or plastic.

In another embodiment of the present application, the second shank portion 14 of the second forceps body 2 may be equally and simultaneously provided with another protruding stop block 26 having the same structure as the second shank portion, and then optionally the first forceps body 1 may be provided with the first shank portion 13 or the first shank portion 13 may be provided with another anti-pinch flange at the junction of the first forceps jaw 15 and corresponding to the other position of the protruding stop block, and the structure of the anti-pinch flange is the same as the anti-pinch flange 27, which is not repeated herein.

For another example, as shown in fig. 6 to 8, the structure of the clamp of this embodiment is substantially similar to that of the clamp described in fig. 2 to 5, except that the protrusion stopping mechanism is a protrusion stopping block 28, the protrusion stopping block 28 is located on the first shank 13 of the first clamp body 1 and near the first jaw 15 and faces the second clamp body 2, and in another embodiment of this application, the protrusion stopping block 28 may also be located at the interface between the first shank 13 and the first jaw 15 and faces the second clamp body 2. The structure and shape of the raised stop 28 are the same as the raised stop 26 and will not be described further herein.

When the jaws are engaged or closed, that is, the first handle 11 and the second handle 12 move toward each other to close, the protruding stop 28 contacts and is clamped on the second shank 14 or at the intersection between the second shank 14 and the second jaw 16, so as to prevent the first handle 11 and the second handle 12 from being closed, that is, the distance between the first handle 11 and the second handle 12 can be limited to be still greater than a certain threshold value when being blocked, and thus, when the jaws accidentally slide off a workpiece or are suddenly loosened or a clamped object is accidentally damaged or separated, the hands of a user holding the first handle 11 and the second handle 12 are prevented or avoided from being pinched.

Similar to the structure of fig. 2 to 4, an anti-pinch rib corresponding to the raised stop block 28 may be disposed on the second shank portion 14, and the raised stop block 28 contacts and pinches the anti-pinch rib during the engagement or closing process of the jaws to prevent the first handle 11 and the second handle 12 from continuing to close, so as to prevent or avoid the hand of the user holding the first handle 11 and the second handle 12 from being pinched when the jaws accidentally suddenly slide off or suddenly loosen the workpiece or the clamped object is accidentally damaged or separated.

In another embodiment of the present application, the second shank portion 14 of the second caliper body 2 may be equally and simultaneously close to the position of the second caliper claw 16 or the junction of the second shank portion 14 and the second caliper claw 16 may be provided with another protruding stop block 28 having the same structure, and then the first caliper body 1 may also be optionally provided with another anti-pinch flange at the position of the protruding stop block on the first shank portion 13 or at the junction of the first caliper claw 13 and the first caliper claw 15 and corresponding to the other anti-pinch flange, and the structure of the anti-pinch flange is the same as that of the second caliper body 2, which is not repeated herein.

For another example, as shown in fig. 9-11, another clamp of another embodiment of the present application, the clamp comprising: the first forceps body 4 and the second forceps body 5 are arranged in an intersecting manner, for example, the first forceps body 4 and the second forceps body 5 are fixed relatively by a pivot mechanism 6, the first forceps body 4 and the second forceps body 5 form a jaw at one end of the pivot mechanism 6, the other end of the pivot mechanism 6 is provided with a handle, and the first forceps body 4 and the second forceps body 5 rotate relative to each other around the pivot mechanism 6 to realize clamping.

The pivot mechanism 6 may be a pivot, for example, the pivot may be a pivot pin or a pivot bolt, wherein the pivot is a cylinder.

The first clamp body 4 comprises a first handle 41, a first jaw 42 and a first shank 43 connecting the first handle 41 and the first jaw 42; the second forceps body 5 includes a second handle 51, a second jaw 52, and a second shank 53 connecting the second handle 51 and the second jaw 52.

The first jaw 42 and the second jaw 52 form a jaw, a junction of the first jaw 42 and the first shank 43 is bent to form a hook shape, and a junction of the second jaw 52 and the second shank 53 is bent to form a hook shape. In another embodiment of the present application, the first jaw 42 and the second jaw 52 have oppositely directed first and second exposed surfaces, respectively, which may be serrated to facilitate secure clamping of the workpiece.

A first elongated slot 61 passing through the first leg portion 43 and being hollow and transverse to the longitudinal direction of the first leg portion 43 is formed at a position of the first leg portion 43 and close to the first jaw 42 or at a junction of the first leg portion 43 and the first jaw 42, the first elongated slot 61 may be a rectangular slot or a slot formed by two, three or more than three communicated circular holes, the pivot mechanism 6 may be located in different circular holes and move in different circular holes, so that the jaw can be pulled up or pulled down, and a toothed belt is provided on an inner side surface of the first elongated slot 61.

A hollow and through second elongated slot 62 which is transverse to the longitudinal direction of the second leg portion 53 is formed at the second leg portion 53 and close to the second jaw 52 or at the junction of the second leg portion 53 and the second jaw 52, the second elongated slot 62 may be a rectangular slot or a slot formed by two, three or more communicated circular holes, the pivot mechanism 6 may be located in different circular holes and move in different circular holes, so that the jaw can be pulled up or down, and the inner side surface of the second elongated slot 62 has a toothed belt.

The first long groove 61 and the second long groove 62 are correspondingly overlapped to form a through groove, the pivot mechanism 6 passes through the first long groove 61, then continuously penetrates through the second long groove 62, the first forceps body 4 and the second forceps body 5 are relatively fixed, wherein the second pincer body 5 is fixed with the pivot mechanism 6, the first pincer body 4 rotates around the pivot mechanism 6, in this way, the first jaw 4 and the second jaw 5 can not only rotate relative to each other about the pivot mechanism 6 to open or close the jaw formed by the first jaw 42 and the second jaw 52, the first forceps body 4 and the second forceps body 5 can also move relatively to each other along the overlapped space of the first long groove 61 and the second long groove 62, so that the jaws can be pulled up or pulled down, and the jaws are suitable for clamping workpieces with different sizes.

In another embodiment of the present application, the rotating surface of the pivot mechanism 6 is a smooth surface, and the inner side surfaces of the first slot 61 and the second slot 62 may also be smooth surfaces.

When jaw enlargement is desired, the first jaw body 4 and the second jaw body 5 are moved away from each other in opposite directions until the pivot mechanism 6 is stopped by the inner side surface of one of the ends of the first slot 61 for a maximum jaw enlargement distance, i.e. by the opposite end side of the first slot 61 and the second slot 62, such that the jaws are enlarged. Thus, when the jaws are opened, the article is placed into the jaws, and then the jaws are conveniently reduced to a state of just holding the article.

In another embodiment of the present application, the inner side surfaces of the first and

second slots

61 and 62 are provided with toothed belts, the surface of the pivot mechanism 6 is also provided with toothed belts, and is engaged with the toothed belts of the first and

second slots

61 and 62, and the pivot mechanism 6 can slide only after being disengaged from the teeth on the toothed belts of the inner side surfaces of the first and

second slots

61 and 62.

A first protruding stop edge 44 facing the second forceps body 5 is provided on the first shank 43 of the first forceps body 4 and close to the first handle 41. In another embodiment of the present application, the first convex stopping edge 44 may also be located on the first handle 41 near the first shank 43 and facing the second clamp body 5. In another embodiment of the present application, the first protruding stopping edge 44 may be located at the intersection of the first handle 41 and the first shank 43 and faces the second forceps body 5. The first projection stop edge 44 may be an annular projection edge or an annular projection band surrounding the first caliper body 4, or the first projection stop edge 44 may simply be a projection edge towards the second caliper body 5. In another embodiment of the present application, the first raised stop edge 44 may be an extended raised edge of the first handle 41 at the interface with the first shin portion 43.

A second protruding stop edge 54 facing the first forceps body 4 is provided on the second shank 53 of the second forceps body 5 and close to the second handle 51. In another embodiment of the present application, the second protrusion stopping edge 54 may also be located on the second handle 51 near the second shank 53 and facing the first pincer body 4. In another embodiment of the present application, the second protrusion stopping edge 54 may be located at the intersection of the second handle 51 and the second shank 53 and faces the first caliper body 4. The second projecting stop edge 54 can be an annular projecting edge or an annular projecting band around the second pincer body 5, or the second projecting stop edge 54 can simply be a projecting edge towards the first pincer body 4. In another embodiment of the present application, the second convex stopping edge 54 may be an extended convex edge of the second handle 51 at the interface with the second shin portion 53.

In another embodiment of the present application, the first bump stop edge 44 and the second bump stop edge 54 may be disposed in a co-location or offset relative to each other.

When the first protruding stopping edge 44 and the second protruding stopping edge 54 are arranged in the same position, during the process of snapping or closing the jaws, i.e. when the first handle 41 and the second handle 51 move towards each other to close, the first protruding stopping edge 44 contacts and catches on the second jaw body 5, and the second protruding stopping edge 54 contacts and catches on the first jaw body 4, optionally, the first protruding stopping edge 44 contacts and catches on the second protruding stopping edge 54, therefore, the first handle 41 and the second handle 51 can be prevented from continuing to close, i.e. the distance between the first handle 41 and the second handle 51 can be limited to be larger than a certain threshold value when they are blocked, so that when the first jaw 42 and the second jaw 52 accidentally slide off or suddenly fall off the workpiece or the clamped object accidentally damages or breaks away, preventing or avoiding pinching of the user's hand holding on said first handle 41 and said second handle 51.

In another embodiment of the present application, when the first protruding stop edge 44 and the second protruding stop edge 54 are relatively disposed in a staggered manner, during the engagement or closing process of the jaws, i.e. when the first handle 41 and the second handle 51 are moved toward each other to close, the one of the first protruding stop edge 44 and the second protruding stop edge 54 closer to the respective shin is first contacted and caught by the shin of the opposite end, and the other protruding stop edge away from the shin is caught when the previous protruding stop edge passes over the catching position (e.g. may be excessively stressed) and the jaws continue to be engaged, and the other protruding stop edge is contacted and caught by the shin of the opposite end, thereby playing a second safety role.

In another embodiment of the present application, in order to limit the distance between the first handle 41 and the second handle 51 to be larger, a first anti-pinch flange 45 corresponding to the second protruding stopping edge 54 may be further disposed on the first forceps body 4, during the process of the occlusion or closure of the jaws, the second protruding stopping edge 54 contacts and pinches on the first anti-pinch flange 45, so that when the first jaw 42 and the second jaw 52 accidentally slide off or loosen suddenly from a workpiece or the object to be clamped accidentally breaks away or breaks away from the workpiece, the user is prevented or avoided from holding the hand on the first handle 41 and the second handle 51 by pinching.

In another embodiment of the present application, in order to limit the distance between the first handle 41 and the second handle 51 to be larger, a second anti-pinch flange 55 corresponding to the first protruding stopping edge 44 may be further disposed on the second forceps body 5, during the process of the jaw engagement or closing, the first protruding stopping edge 44 contacts and pinches on the second anti-pinch flange 55, so that when the first jaw 42 and the second jaw 52 accidentally slide off or loosen suddenly from a workpiece or the object to be clamped accidentally breaks away or breaks away from the workpiece, the user is prevented or avoided from catching the hand on the first handle 41 and the second handle 51.

In another embodiment of the present application, the first anti-pinch rib 45 and the second anti-pinch rib 55 may be raised baffles.

In another embodiment of the present application, in order to make the first protruding stopping edge 44 and/or the second protruding stopping edge 54 have a buffer when being blocked, do not cause the shaking of the clamp, the first protruding stopping edge 44, the second protruding stopping edge 54, the first anti-pinch rib 45 and at least one of the second anti-pinch ribs 55 can be made of an elastic material, such as rubber, silica gel or plastic, etc.

As shown in fig. 12, another clamp according to another embodiment of the present application includes: the first forceps body 121 and the second forceps body 122 are disposed to intersect with each other, for example, the first forceps body 121 and the second forceps body 122 are fixed to each other by a pivot mechanism 123, the first forceps body 121 and the second forceps body 122 form a jaw at one end of the pivot mechanism 123, the other end of the pivot mechanism 123 is a handle, and the first forceps body 121 and the second forceps body 122 rotate around the pivot mechanism 123 to clamp the jaw.

The pivot mechanism 123 may be a pivot, for example, the pivot may be a pivot pin or a pivot bolt, wherein the pivot is a cylinder.

As shown in fig. 13, the first clamp body 121 includes a first handle 1211, a first jaw 1215 and a first shank 1213 connecting the first handle 1211 and the first jaw 1215; the second jaw 122 includes a second handle 1212, a second jaw 1216, and a second leg 1214 connecting the second handle 1212 and the second jaw 1216.

The first jaw 1215 and the second jaw 1216 form a jaw, a junction of the first jaw 1215 and the first shin 1213 is bent to form a hook, and a junction of the second jaw 1216 and the second shin 1214 is bent to form a hook. In another embodiment of the present application, the first jaw 1215 and the second jaw 1216 each have oppositely directed exposed surfaces, both of which have serrations, to facilitate secure gripping of a workpiece.

A first elongated slot 1223 passing through the first shank 1213 of the first forceps body 121 and being hollow is formed along the longitudinal direction of the first shank 1213, the first elongated slot 1223 may be an elongated slot or a shape similar to an elongated slot, such as an oblong oval, for example, an inclined upper stop edge 1229 is formed on the inner side surface of the first elongated slot 1223 close to the first jaw 1215, and an inclined lower stop edge 1230 is formed on the inner side surface of the first elongated slot 1223 close to the first handle 1211.

A second elongated slot 1224 that penetrates in a hollow manner is provided in the second leg portion 1214 of the second caliper body 122 along the longitudinal direction of the second leg portion 1214, the second elongated slot 1224 may be an elongated slot or may be a substantially elongated slot, for example, a prolate elliptical shape, and the inner surface of the second elongated slot 1224 has a toothed belt.

A first through hole 1231 is formed at the first shank portion 1213 of the first jaw body 121 and near the first jaw 1215 or at the intersection of the first jaw 1215 and the first shank portion 1213.

The second jaw 1216 of the second caliper body 122 passes through the first long slot 1223 formed in the first shank 1213 of the first caliper body 121 and then intersects with the first caliper body 121, and then the pivot mechanism 123 passes through the first through hole 1231 and then continues to pass through the second long slot 1224 of the second shank 1214, so as to intersect and relatively fix the first caliper body 121 and the second caliper body 122. The first jaw body 121 is fixed to the pivot mechanism 123, and the second jaw body 122 rotates around the pivot mechanism 123, so that the first jaw 1215 and the second jaw 1216 can be opened or closed by mutually rotating the first jaw body 121 and the second jaw body 122 around the pivot mechanism 123, and the first jaw body 121 and the second jaw body 122 can also be moved mutually along the corresponding longitudinal direction of the second elongated slot 1224, so that the distance between the jaws is increased or decreased, and the pliers are suitable for gripping workpieces with different sizes.

In another embodiment of the present application, the surface of rotation of the pivot mechanism 123 is smooth, for example, the surface of the pivot mechanism 123 in contact with the second elongated slot 1224 is smooth.

In another embodiment of the present application, the surface of the pivot mechanism 123 contacting the second slot 1224 has a toothed belt that engages the toothed belt of the inside surface of the second slot 1224, such that when the toothed belt of the pivot mechanism 123 engages the toothed belt of the second slot 1224, the pivot mechanism 123 is fixed to the second jaw 122, and the first jaw 121 can rotate relative to the pivot mechanism 123 to open or close the jaw formed by the first jaw 1215 and the second jaw 1216.

When jaw enlargement is required, as shown in figure 14, the first body 121 carries the pivot mechanism 123 out of engagement with the toothed belt on the inside surface of the second elongate slot 1224 of the second body 122, and the first body 121 is then pulled downwardly from the uppermost extent of the second elongate slot 1224, such that the jaw formed by the first jaw 1215 and the second jaw 1216 is enlarged. Thus, when the jaws are opened, the article is placed into the jaws, and then the jaws are conveniently reduced to a state of just holding the article.

In another embodiment of the present application, the teeth on the toothed belt of the inside surface of the second elongated slot 1224 and the teeth on the rotating surface of the pivot mechanism 123 are intermeshing one-way ratchet teeth, i.e., the teeth on the toothed belt of the inside portion of the second elongated slot 1224 are all oriented diagonally in one direction, and the teeth on the rotating surface of the pivot mechanism 123 are all oriented diagonally in the opposite direction to the teeth on the toothed belt of the inside surface of the second elongated slot 1224. Thus, when a force is applied in the opposite direction to the inclination of the teeth on the inner surface of the second slot 1224, i.e., there is a barb between the teeth on the surface of the pivot mechanism 123 and the teeth on the inner side of the second slot 1224, the two separate from each other to allow the pivot mechanism 123 to slide in the slot 23 when an external force is applied. In the direction of the teeth on the inner surface of the second long groove 1224 tilting, the pivot mechanism 123 can automatically disengage from the teeth on the toothed belt on the inner side of the second long groove 1224 without intervention of external force, thereby achieving unidirectional quick sliding.

The inclined upper stopping edge 1229 and the inclined lower stopping edge 1230 of the first long groove 1223 are edges of which the inner side surfaces of the two opposite ends of the first long groove 1223 have a certain inclined angle, for example, the inclined angle may be 30 ° to 80 °.

When the jaws are engaged or closed, i.e., the first handle 1211 and the second handle 1212 are moved toward each other to close, the inclined upper stop edge 1229 contacts and is clamped on the second shin portion 1214, the inclined lower stop edge 1230 contacts and is clamped on the second handle 1212 or the junction between the second shin portion 1214 and the second handle 1212 or the second shin portion 1214, so as to prevent the first handle 1211 and the second handle 1212 from being closed further, i.e. the distance between said first handle 1211 and said second handle 1212 may be limited to remain larger than a certain threshold when the closure is blocked, such that when the jaw formed by the first jaw 1215 and the second jaw 1216 accidentally slips away from the workpiece or suddenly loosens or the clamped object is accidentally damaged or disengaged, preventing or avoiding pinching of a user's hand holding the first handle 1211 and the second handle 1212.

In another embodiment of the present application, in order to limit the distance between the first handle 1211 and the second handle 1212 to be greater, the second shank 1214 of the second forceps body 122 or the second handle 1212 and corresponding to the position of the inclined lower stop edge 1230 may be provided with a raised anti-pinch stop edge 1227, for example, the second forceps body 122 is provided with the second shank 1214 and is close to the position of the second handle 1212 is provided with the anti-pinch stop edge 1227, or the second handle 1212 and is close to the position of the second shank 1214 is provided with the anti-pinch stop edge 1227, or the second handle 1212 and the position of the junction of the second shank 1214 are provided with the anti-pinch stop edge 1227, or the anti-pinch stop edge 1227 may be a raised baffle or a raised edge or a protrusion.

When the jaws are engaged or closed, i.e., the first handle 1211 and the second handle 1212 are moved toward each other and closed, the lower inclined stop edge 1230 contacts and catches the anti-pinch edge 1227, so that the first handle 1211 and the second handle 1212 cannot be closed further, thereby preventing or avoiding pinching of the user's hand on the first handle 1211 and the second handle 1212 when the first jaw 1215 and the second jaw 1216 accidentally slide off or loosen from the workpiece suddenly or the object being pinched is accidentally damaged or disengaged.

In another embodiment of the present application, in order to provide a buffer when the upper inclined stop rib 1229 and the lower inclined stop rib 1230 are clamped, and not to cause the shaking of the clamp, any one or three of the upper inclined stop rib 1229, the lower inclined stop rib 1230 and the anti-pinch rib 1227 may be made of an elastic material, such as rubber, silicone, plastic, or the like.

As shown in fig. 15, another clamp according to another embodiment of the present application includes: the first and

second forceps bodies

151 and 152 are disposed to intersect with each other, for example, the first and

second forceps bodies

151 and 152 are fixed to each other by a pivot mechanism 153, the first and

second forceps bodies

151 and 152 form a jaw at one end of the pivot mechanism 153, the other end of the pivot mechanism 153 is a handle, and the first and

second forceps bodies

151 and 152 rotate around the pivot mechanism 153 to clamp the jaw.

The pivot mechanism 153 may be a pivot, for example, the pivot may be a pivot pin or a pivot bolt, wherein the pivot is a cylinder.

As shown in fig. 16, the first clamp body 151 includes a first handle 1511, a first jaw 1515 and a first shank 1513 connecting the first handle 1511 and the first jaw 1515; the second jaw 152 includes a second handle 1512, a second jaw 1516, and a second shank 1514 connecting the second handle 1512 and the second jaw 1516.

The first jaw 1515 and the second jaw 1516 form a jaw, a junction of the first jaw 1515 and the first shin portion 1513 is bent to form a hook shape, and a junction of the second jaw 1516 and the second shin portion 1514 is bent to form a hook shape. In another embodiment of the present application, the first jaw 1515 and the second jaw 1516 each have oppositely directed exposed surfaces, both of which have serrations, to facilitate secure gripping of a workpiece.

A first long groove 1523 that penetrates through the first leg portion 1513 of the first caliper body 151 in a hollow manner is formed along the longitudinal direction of the first leg portion 1513, and the first long groove 1523 may be an elongated groove or a shape that approximates to an elongated groove, for example, an oblong elliptical shape.

A pin 1531 transversely passing through the first long groove 1523 is disposed at a position of the first long groove 1523 close to the first handle 1511, for example, the pin 1531 may be a round pin. In another embodiment of the present application, the pin 1531 may be integrally formed with the first leg portion 1513, or two side surfaces of the first leg portion 1513 having the first long groove 1523 are respectively provided with a fixing hole, and the pin 1531 passes through the first long groove 1523 and then is fixed in the two fixing holes, for example, the pin 1531 and the two fixing holes are fixed by screwing, welding or fastening.

A second elongated slot 1524 that penetrates through the second leg portion 1514 of the second caliper body 152 and is hollow in the longitudinal direction of the second leg portion 1514 is provided, the second elongated slot 1524 may be an elongated slot or a substantially elongated slot, for example, a prolate oval, and the inner surface of the second elongated slot 1524 has a toothed belt.

A first through hole 1530 is formed in the first leg portion 1513 of the first jaw body 151 near the first jaw 1515 or at the intersection of the first jaw 1515 and the first leg portion 1513.

The second jaw 1516 and the second shank 1514 of the second jaw 152 are crossed through the pin 1531 of the first long slot 1523 to a section close to the hollow portion of the first jaw 1515, and then the pivot mechanism 153 passes through the first through hole 1530 and then continues to pass through the second long slot 1524 of the second shank 1514, so that the first jaw 151 and the second jaw 152 are crossed and fixed relatively. The first clamp body 151 is fixed to the pivot mechanism 153, and the second clamp body 152 rotates around the pivot mechanism 153, so that the first clamp body 151 and the second clamp body 152 can not only rotate around the pivot mechanism 153 to open or close the jaw formed by the first jaw 1515 and the second jaw 1516, but also move relative to each other along the corresponding longitudinal direction of the second elongated slot 1524, so that the distance between the jaws is increased or decreased, and the clamp is suitable for clamping workpieces of different sizes.

In another embodiment of the present application, the surface of rotation of the pivot mechanism 153 is smooth, for example, the surface of the pivot mechanism 153 in contact with the second long slot 1524 is a smooth surface.

In another embodiment of the present application, a surface of the pivot mechanism 153 contacting the second long groove 1524 has a toothed belt engaged with the toothed belt on the inner surface of the second long groove 1524, so that when the toothed belt of the pivot mechanism 153 and the toothed belt of the second long groove 1524 are engaged with each other, the pivot mechanism 153 is fixed to the second jaw 152, and the first jaw 151 can rotate around the pivot mechanism 153 to open or close the jaw formed by the first jaw 1515 and the second jaw 1516.

As shown in fig. 17, when the jaws need to be enlarged, the first jaw 151 drives the pivot mechanism 153 to disengage from the toothed belt on the inner surface of the second elongated slot 1524 of the second jaw 152, and then the first jaw 151 is pulled downward from the top of the second elongated slot 1524, so that the jaws formed by the first jaw 1515 and the second jaw 1516 are enlarged. Thus, when the jaws are opened, the article is placed into the jaws, and then the jaws are conveniently reduced to a state of just holding the article.

In another embodiment of the present application, the teeth on the toothed belt on the inner side surface of the second long groove 1524 and the teeth on the rotating surface of the pivot mechanism 153 are engaged one-way ratchet teeth, that is, the teeth on the toothed belt on the inner side portion of the second long groove 1524 are obliquely oriented in one direction, and the teeth on the rotating surface of the pivot mechanism 153 are obliquely oriented in the opposite direction to the teeth on the toothed belt on the inner side surface of the second long groove 1524. Therefore, when a force is applied in the opposite direction of the inclination of the teeth on the inner side surface of the second long groove 1524, that is, barbs are arranged between the teeth on the surface of the pivot mechanism 153 and the teeth on the inner side portion of the second long groove 1524, the two members need to be separated from each other to enable the pivot mechanism 153 to slide in the long groove 23 when an external force is applied. In the direction in which the teeth on the inner side surface of the second long groove 1524 are inclined, the pivot mechanism 153 can automatically disengage from the teeth on the toothed belt on the inner side of the second long groove 1524 without intervention of external force, so that unidirectional quick sliding is realized.

When the jaws are engaged or closed, that is, the first handle 1511 and the second handle 1512 move toward each other and approach to close, the pin 1531 contacts and is clamped on the second shank 1514, or the pin 1531 contacts and is clamped on the second handle 1512, or the intersection between the second shank 1514 and the second handle 1512, so as to prevent the first handle 1511 and the second handle 1512 from continuing to close, that is, to limit the distance between the first handle 1511 and the second handle 1512 to be still greater than a certain threshold value when the closing is blocked, so as to prevent or avoid the hand being pinched by the user holding the first handle 1511 and the second handle 1512 when the jaw formed by the first jaw 1515 and the second jaw 1516 accidentally suddenly slides or loosens from the workpiece or the clamped object is accidentally damaged or separated.

In another embodiment of the present application, in order to limit the distance between the first handle 1511 and the second handle 1512 to be larger, a raised anti-pinch rib 1527 may be optionally disposed on the second shank 1514 or the second handle 1512 of the second forceps body 152 and at a position corresponding to the pin 1531, for example, the anti-pinch rib 1527 is disposed on the second shank 1514 of the second forceps body 152 and at a position close to the second handle 1512, or the anti-pinch rib 1527 is disposed on the second handle 1512 and at a position close to the second shank 1514, or the anti-pinch rib 1527 is disposed at a junction position between the second handle 1512 and the second shank 1514, where the anti-pinch rib 1527 may be a raised baffle or a raised edge or a protrusion.

When the jaws are engaged or closed, that is, the first handle 1511 and the second handle 1512 move towards each other to close, the pin 1531 contacts and is clamped on the anti-clamping rib 1527, so that the first handle 1511 and the second handle 1512 cannot be closed continuously, and thus when the first jaw 1515 and the second jaw 1516 accidentally slide off a workpiece or are suddenly loosened or a clamped object is accidentally damaged or separated, a hand held by a user on the first handle 1511 and the second handle 1512 is prevented or avoided from being clamped.

In another embodiment of the present application, in order to buffer the pin 1531 from being jammed and not cause the clamp to shake, the anti-pinch rib 1527 may be made of an elastic material, such as rubber, silicone, or plastic.

In summary, in the above-described pliers, the first jaw and/or the second jaw are provided with a protruding stopping mechanism, which can contact and clamp on the opposite jaw during the engagement or closing process of the jaws to prevent the first handle and the second handle from continuing to close, so as to prevent or avoid the hand of a user holding the first handle and the second handle from being injured by the hand when the first jaw and the second jaw accidentally drop off or suddenly loosen from a workpiece or the object to be clamped is accidentally damaged or separated.

The foregoing detailed description of the preferred embodiments of the present application. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the concepts of the present application should be within the scope of protection defined by the claims.

Claims

1. A clamp, comprising: the first clamp body and the second clamp body are fixed in an intersecting manner through a pivot mechanism, a jaw is formed at one end of the pivot mechanism by the first clamp body and the second clamp body, respective handles are respectively arranged at the other end of the pivot mechanism, and the first clamp body and the second clamp body mutually rotate around the pivot mechanism to clamp the jaw;

the first forceps body and/or the second forceps body are/is provided with a stop mechanism, so that the handle of the first forceps body and the handle of the second forceps body can be stopped by the stop mechanism when the handles are closed, and a gap exists between the handle of the first forceps body and the handle of the second forceps body.

2. The forceps of claim 1, wherein the stop mechanism of the first forceps body is a first bump stop mechanism and the stop mechanism of the second forceps body is a second bump stop mechanism;

3. The forceps of claim 2, wherein the first body includes a first handle, a first jaw, and a first shank connecting the first handle and the first jaw; the second clamp body comprises a second handle, a second clamp claw and a second shank part connecting the second handle and the second clamp claw;

wherein the first jaw and the second jaw form the jaw.

4. The forceps of claim 3, wherein the first bump stop mechanism is located laterally of the first shank portion of the first forceps body and toward the second forceps body; and/or the presence of a gas in the gas,

5. The pliers of claim 3, wherein the first bump stop mechanism is located on the first jaw proximate the first shank portion and toward the second body; or the first bulge stopping mechanism is positioned on the first shank part, is close to the side surface of the first handle and faces the second clamp body; or the first bulge stopping mechanism is positioned on the side surface of the junction of the first shank and the first handle and faces the second clamp body; or the first bulge stopping mechanism is positioned on the first shank part, is close to the side surface of the first jaw and faces the second jaw body; or the first bulge stopping mechanism is positioned on the side surface of the junction of the first shank and the first jaw and faces the second clamp body; or the first bulge stopping mechanism is positioned on the side surface of the middle position of the first shin part and faces the second clamp body; and/or the presence of a gas in the gas,

6. The forceps of claim 3, wherein the first bump stop mechanism is located on a side of the first handle of the first forceps body facing the second forceps body; and/or the presence of a gas in the gas,

7. The clamp of claim 6, wherein said first bump stop mechanism is located on said first handle on a side thereof adjacent said first shin and facing said second clamp body; or the first bulge stopping mechanism is positioned on the side surface of the middle position of the first handle and faces the second clamp body; or the first bulge stopping mechanism is positioned on the side of the tail end position of the first handle and faces the second clamp body; and/or the presence of a gas in the gas,

8. The pliers of claim 2, wherein a first anti-pinch rib is provided on the first body at a location corresponding to the second bump stop mechanism to contact and catch the second bump stop mechanism during the snapping or closing of the jaws; and/or the presence of a gas in the gas,

9. The clamp of claim 3, wherein a first elongated hollow trough is formed in the first shank portion of the first clamp body along the length of the first shank portion, and an inner side surface of the first elongated trough adjacent to the first handle has a lower angled stop edge;

10. The clamp as claimed in claim 3, wherein a first elongated hollow groove is formed in the first shank portion of the first clamp body along a longitudinal direction of the first shank portion;