CN219255291U - Clamp forceps - Google Patents

Abstract

The application relates to a clamp, which comprises a first clamping arm, a second clamping arm and an adjusting and locking mechanism, wherein the first clamping arm is provided with a first holding part and a first holding end, and the second clamping arm is provided with a second holding part and a second holding end; the adjusting and locking mechanism comprises an adjusting piece and a limiting assembly, one end of the adjusting piece is connected to the first holding part, and the limiting assembly is arranged on the second holding part; the adjusting and locking mechanism is provided with a one-way locking state and a release state, in the one-way locking state, the second holding part can move towards the direction close to the first holding part under the action of external force, and the limiting component can be blocked against the adjusting piece in one way so as to prevent the second holding part from moving towards the direction far away from the first holding part; in the released state, the second grip portion is free to move relative to the adjustment member to be either closer to or farther from the first grip portion. The clamp provided by the utility model can adjust and fix the clamping state between the first clamping arm and the second clamping arm through the adjusting and locking mechanism, and the whole clamp is more labor-saving and has better practicability.

Description

Clamp forceps

Technical Field

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

Background

When the existing clamp clamps articles, a user needs to use larger force to keep the two clamping arms in a certain clamping state so as to ensure firm clamping action of the clamping piece, the labor is wasted, and the user is inconvenient to release two hands for other follow-up operations, so that the clamp capable of self-fixing the clamping state is needed, and the use convenience of the clamp is improved.

Disclosure of Invention

Based on this, it is necessary to provide a clamp.

The clamp comprises a first clamping arm, a second clamping arm and a rotating assembly, wherein the first clamping arm is rotationally connected with the second clamping arm through the rotating assembly; the first clamping arm is provided with a first holding part and a first clamping end, the second clamping arm is provided with a second holding part and a second clamping end, and the first clamping end and the second clamping end are matched with each other to clamp a piece to be clamped; it is characterized in that the method comprises the steps of,

the clamp also comprises an adjusting and locking mechanism, wherein the adjusting and locking mechanism comprises an adjusting piece and a limiting assembly, one end of the adjusting piece is fixedly connected with the first holding part, the second holding part is movably connected with the adjusting piece, and the limiting assembly is arranged on the second holding part;

the adjusting and locking mechanism is provided with a unidirectional locking state and a release state, in the unidirectional locking state, the second holding part can move towards the direction close to the first holding part under the action of external force, and the limiting component can be blocked against the adjusting piece in a unidirectional way so as to prevent the second holding part from moving towards the direction far away from the first holding part; in the released state, the second grip portion is free to move relative to the adjustment member to be either closer to or farther from the first grip portion.

In one embodiment of the present utility model, the adjusting member has a first end and a second end facing away from each other, the first end of the adjusting member is connected to the first holding portion of the first clamping arm, and the second end of the adjusting member is slidably disposed on the second clamping arm.

In one embodiment of the present utility model, the limiting component is disposed on a side of the second holding portion relatively far from the rotating component, the first end of the adjusting component is connected to a side of the first holding portion relatively far from the rotating component, and the second end of the adjusting component is slidably attached to a side of the second holding portion relatively close to the first holding portion.

In one embodiment of the present utility model, the limiting component is disposed on a side of the second holding portion, which is relatively close to the rotating component, the first end of the adjusting component is connected to a side of the first holding portion, which is relatively close to the rotating component, and the second end of the adjusting component is slidably disposed on a side of the second holding portion, which is relatively close to the rotating component.

In one embodiment of the utility model, the limiting assembly comprises an operation piece and a clamping piece which are mutually linked, the clamping piece comprises a first limiting part, and the adjusting piece comprises a second limiting part; in the unidirectional locking state, the first limiting part and the second limiting part are matched with each other; in the release state, the first limit part and the second limit part are separated from each other; the operation piece is used for driving the clamping piece to rotate under the action of external force so as to enable the adjusting and locking mechanism to be switched between the unidirectional locking state and the release state.

In one embodiment of the present utility model, the first limiting portion and the second limiting portion are in ratchet fit.

In one embodiment of the present utility model, the limiting component further includes a first elastic member, where the first elastic member is fixedly connected to the clamping member, and the first elastic member is configured to drive the clamping member to return to the unidirectional locking state after the external force is removed.

In one embodiment of the present utility model, the clamping member includes a linkage portion and the first limiting portion, the operating member includes a pressing handle and a pressing portion, the pressing portion abuts against the linkage portion, and the pressing handle can apply a force to the linkage portion through the pressing portion under an external force, so that the linkage portion drives the first limiting portion to rotate, and the released state is formed.

In one embodiment of the present utility model, the limiting component is disposed at a side of the second holding portion relatively far from the rotating component, the first end of the adjusting component is connected to a side of the first holding portion relatively far from the rotating component, and the second end of the adjusting component is slidably disposed through a side of the second holding portion relatively far from the rotating component.

In one embodiment of the present utility model, the limiting component includes a moving portion and a clamping portion, where the moving portion and the clamping portion are both mounted on the second holding portion; the second holding part can move along the adjusting piece to a direction approaching to the first holding part through the moving part; the second holding part can move along the clamping part in a direction approaching or separating from the first holding part along the adjusting piece.

In one embodiment of the utility model, the adjusting piece is a strip-shaped sliding rod with a certain curvature, and two sides of the sliding rod along the length direction of the sliding rod are provided with curved transition walls.

Compared with the prior art, the clamp provided by the utility model can adjust and lock the clamping state between the first clamping arm and the second clamping arm through the adjusting and locking mechanism, so that the second holding part can move on the adjusting rod in a large range and also can move on the adjusting rod in a small range, the clamping effect and clamping force of the clamp to the clamping piece can be correspondingly adjusted, and the overall practicability and use convenience of the clamp are improved.

Drawings

In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings that are required to be used in the description of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic view of a first embodiment of a clamp provided herein;

FIG. 2 is a schematic view of the clamp of FIG. 1 from another perspective;

FIG. 3 is a schematic view of the clamp of FIG. 1 in another state;

FIG. 4 is a schematic cross-sectional view of the clamp of FIG. 3;

FIG. 5 is an enlarged schematic view of the structure shown at X in FIG. 4;

FIG. 6 is a schematic view of a portion of the structure of the clamp of FIG. 1;

FIG. 7 is a schematic view of a portion of the structure of the clamp of FIG. 1;

FIG. 8 is a schematic view of the clamp portion structure of FIG. 7 from another perspective;

FIG. 9 is a schematic view of a second embodiment of a clamp provided herein;

FIG. 10 is a schematic view of the clamp of FIG. 9 from another perspective;

FIG. 11 is a schematic side elevational view of the pliers of FIG. 9;

FIG. 12 is a schematic cross-sectional view of the clamp at A-A of FIG. 11;

FIG. 13 is an enlarged schematic view of the structure at Y in FIG. 12;

FIG. 14 is a schematic view of a portion of the structure of the clamp of FIG. 9;

FIG. 15 is a schematic view of a portion of the structure of the clamp of FIG. 9;

FIG. 16 is a schematic cross-sectional view of a third embodiment of a clamp provided herein;

fig. 17 is an enlarged schematic view of the structure at Z in fig. 16.

Reference numerals: 100. a clamp; 10. a first clamp arm; 11. a first clamping end; 12. a first grip portion; 20. a second clamp arm; 21. a second clamping end; 22. a second grip portion; 202. an installation space; 221. a first mounting portion; 222. a second mounting portion; 223. a support wall; 224. a first arcuate support surface; 23. a fixing member; 231. an accommodating space; 30. adjusting the locking mechanism; 31. an adjusting member; 311. a first end; 312. a second end; 313. a second limit part; 3131. the second limiting teeth; 32. a limit component; 321. an operating member; 3211. pressing the handle; 3212. a pressing part; 3213. a clamping part; 32131. a through hole; 322. a clamping piece; 3221. a linkage part; 32210. a recessed region; 32211. a first linkage wall; 32212. a second linkage wall; 3222. a first limit part; 32221. the first limiting teeth; 3223. an avoidance groove; 323. a first elastic member; 324. a moving part; 3241. a toggle member; 3242. a locking piece; 3243. a second elastic member; 325. a clamping part; 3251. a force application handle; 32511. a force application part; 32512. a pushing part; 32502. a second arcuate support surface; 3252. a driving plate; 3253. a third elastic member; 40. a first rotating shaft; 50. a second rotating shaft; 60. and (5) rotating the assembly.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used in the description of the present application for purposes of illustration only and do not represent the only embodiment.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be a direct contact of the first feature with the second feature, or an indirect contact of the first feature with the second feature via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.

Unless defined otherwise, all technical and scientific terms used in the specification of this application 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 present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. The term "and/or" as used in the specification of this application includes any and all combinations of one or more of the associated listed items.

The present application provides a clamp 100 for gripping or twisting an article. It is understood that the articles include, but are not limited to, iron sheet, iron wire, copper wire, and the like.

Referring to fig. 1, fig. 1 is a schematic structural view of a first embodiment of a clamp 100 provided herein; the clamp 100 comprises a first clamping arm 10, a second clamping arm 20 and a rotating assembly 60, wherein the first clamping arm 10 is rotatably connected with the second clamping arm 20 through the rotating assembly 60; the first clamping arm 10 has a first gripping portion 12 and a first clamping end 11, and the second clamping arm 20 has a second gripping portion 22 and a second clamping end 21; the first clamping end 11 and the second clamping end 21 cooperate with each other to clamp the workpiece to be clamped.

It should be noted that the rotating assembly 60 includes a spring member (not numbered) and a rotating shaft (not numbered) that are engaged with each other. The first clamping arm 10 and the second clamping arm 20 are in cross connection with the rotating assembly 60 as a connecting point, the rotating assembly 60 is used as a demarcation point, the first clamping arm 10 comprises a first clamping part and a first holding part 12 which are connected with each other, the first clamping end 11 is positioned on one side of the first clamping part relatively far away from the rotating assembly 60, the second clamping arm 20 comprises a second clamping part and a second holding part 22 which are connected with each other, and the second clamping end 21 is positioned on one side of the second clamping part relatively far away from the rotating assembly 60.

The existing clamp is required to keep two clamping arms in a certain clamping state after clamping objects, a user is required to apply force to the two clamping arms continuously, the labor is wasted, and the user is inconvenient to release hands for other operations, so that the clamp capable of fixing the clamping state by itself is required to be high in use convenience and reduce the labor intensity of the user.

Referring to fig. 1 again and fig. 2 to 8 together, fig. 2 is a schematic structural view of the clamp 100 in fig. 1 from another perspective; FIG. 3 is a schematic view of the clamp 100 of FIG. 1 in another state; FIG. 4 is a schematic cross-sectional view of the clamp 100 of FIG. 3; FIG. 5 is an enlarged schematic view of the structure shown at X in FIG. 4; FIG. 6 is a schematic view of a portion of the structure of the clamp 100 of FIG. 1; FIG. 7 is a schematic view of a portion of the structure of the clamp 100 of FIG. 1; fig. 8 is a schematic view of a portion of the structure of the clamp 100 of fig. 7 from another perspective.

Based on the above-mentioned problems, the clamp 100 provided by the present utility model further includes an adjusting and locking mechanism 30, wherein the adjusting and locking mechanism 30 includes an adjusting member 31 and a limiting component 32, one end of the adjusting member 31 is fixedly connected to the first holding portion 12, the second holding portion 22 is movably connected to the adjusting member 31, and the limiting component 32 is disposed on the second holding portion 22; the adjusting and locking mechanism 30 has a unidirectional locking state and a release state, wherein in the unidirectional locking state, the second holding part 22 can move towards the direction approaching the first holding part 12 under the action of external force, and the limiting component 32 can be blocked against the adjusting piece 31 in a unidirectional way so as to prevent the second holding part 22 from moving towards the direction far away from the first holding part 12; in the released state, the second grip portion 22 is free to move relative to the adjustment member 31 to approach or depart from the first grip portion 12.

By means of the arrangement, the clamping state between the first clamping arm 10 and the second clamping arm 20 can be adjusted and locked through the adjusting and locking mechanism 30, so that the second holding part 22 can move on the adjusting piece 31 in a large range, and the second holding part 22 can move on the adjusting piece 31 in a small range, so that the clamping effect and clamping force of the clamping piece to be clamped of the clamping piece 100 can be correspondingly adjusted, and the overall practicability and the use convenience of the clamping piece 100 are improved.

Specifically, in the unidirectional limiting state, the limiting component 32 can be clamped at a certain position in the length direction of the adjusting piece 31, so that the clamping distance between the first clamping end 11 and the second clamping end 21 is kept fixed; in the released state, the limiting assembly 32 can be moved away from the adjustment member 31 to allow the clamping distance between the first clamping end 11 and the second clamping end 21 to be changed. It will be appreciated that the adjustment member 31 has a length to provide adjustment.

Referring to fig. 4 and 5 again, further, the adjusting member 31 has a first end 311 and a second end 312 facing away from each other, and the first end 311 of the adjusting member 31 is connected to the first holding portion 12 of the first arm 10; the second end 312 of the adjustment member 31 is slidably disposed on the second clamp arm 20. In other words, when the first clamp arm 10 and the second clamp arm 20 rotate relatively, the limiting assembly 32 and the adjusting member 31 can be separated from each other, so that the second end 312 of the adjusting member 31 and the second clamp arm 20 can move relatively.

Preferably, in the first embodiment of the present utility model, the limiting component 32 is disposed on a side of the second holding portion 22 relatively far from the rotating component 60, the first end 311 of the adjusting member 31 is connected to a side of the first holding portion 12 relatively far from the rotating component 60, and the second end 312 of the adjusting member 31 is slidably attached to a side of the second holding portion 22 relatively close to the first holding portion 12.

In other words, the adjusting member 31 has a certain flexibility, and can be partially hidden inside the second clamping arm 20 relatively close to the inner side of the first clamping arm 10, and can move inside the second clamping arm 20. By the arrangement, the adjusting part 31 can be prevented from protruding out of the outer side of the second clamping arm 20 while the adjusting function of the adjusting part 31 is ensured, the holding hand feeling of a person using the clamp 100 is effectively improved, the whole volume of the clamp 100 is reduced, and the clamp 100 is convenient for the person using the clamp 100 and storing the clamp 100.

Referring to fig. 5 again, in the present embodiment, preferably, the limiting component 32 includes an operating member 321 and a clamping member 322 that are linked with each other, the clamping member 322 includes a first limiting portion 3222, and the adjusting member 31 includes a second limiting portion 313; in the one-way locking state, the first and second limit portions 3222 and 313 are engaged with each other; in the released state, the first and second stopper portions 3222 and 313 are separated from each other; the operating member 321 is configured to rotate the locking member 322 under the action of external force, so as to switch the adjustment locking mechanism 30 between the unidirectional locking state and the release state. So set up, the user can drive joint piece 322 through pressing operating piece 321 and rotate in order to realize with the joint or the separation of regulating part 31, improves the operational ease and the cooperation speed of spacing subassembly 32 and regulating part 31 mutually supporting.

Further, in the present embodiment, the first limiting portion 3222 and the second limiting portion 313 are in ratchet engagement. The first limiting portion 3222 includes at least one first limiting tooth 32221, the second limiting portion 313 includes a plurality of second limiting teeth 3131, the plurality of second limiting teeth 3131 are convexly arranged on one side of the adjusting member 31, which is close to the clamping member 322, and a clamping position (not numbered) is formed between two adjacent second limiting teeth 3131 and is used for being clamped with the first limiting teeth 32221.

In the one-way locking state, the first spacing teeth 32221 can be engaged with the second spacing teeth 3131 to fix a clamped state or a rotation angle between the first clamp arm 10 and the second clamp arm 20. In the released state, the first spacing tooth 32221 can be separated from the second spacing tooth 3131, so that the gripping state or the rotation angle between the first gripper arm 10 and the second gripper arm 20 can be changed.

Preferably, the plurality of second spacing teeth 3131 are ratchet teeth, and the inclined direction of the longer tooth surface of the second spacing teeth 3131 faces the first holding portion 12, so that the second holding portion 22 can move towards the first holding portion 12 in the unidirectional locking state, and further, the tooth shape of the first spacing teeth 32221 is not limited herein, as long as the tooth shape can be engaged with the second spacing teeth 3131.

Preferably, the first limiting portion 3222 includes a plurality of continuous first limiting teeth 32221, in the unidirectional locking state, the plurality of first limiting teeth 32221 can be sequentially clamped on the plurality of clamping positions when the second holding portion 22 moves towards the first holding portion 12, that is, the first limiting portion 3222 can be clamped with the plurality of second limiting teeth 3131 through the plurality of first limiting teeth 32221 in a mutually meshed manner, so that the fixing effect is improved, and the risk of failure in clamping caused by too few meshing numbers of teeth is avoided or reduced.

Preferably, the first limiting teeth 32221 are provided with a plurality of limiting members 32, in this embodiment, the limiting members 32 only play a role in blocking or limiting the second holding portion 22 in a direction away from the first holding portion 12, when a user needs to approach the second holding portion 22 to the first holding portion 12, the user only needs to apply a grip force, and without operating the limiting members 32, the second holding portion 22 can gradually approach the first holding portion 12, so as to drive the clamping distance between the first clamping end 11 and the second clamping end 21 to be reduced; in addition, the ratchet matching mode can enable the limiting assembly 32 to timely limit and lock the second holding part 22 when force is removed, so that the clamping distance between the first clamping end 11 and the second clamping end 21 is kept fixed again. In other words, when the user applies the holding force to the second holding portion 22 only, the limiting component 32 can make the second holding portion 22 move on the adjusting member 31 in a small range and lock in time; when the user applies force to the limiting assembly 32, the limiting assembly 32 can be separated from the adjusting member, so that the second holding part 22 can freely move on the adjusting member 31 in a large range.

In other words, the first limiting teeth 32221 can only slide on the adjusting member 31 in one direction, and after the user removes the force, the first limiting teeth 32221 lock the second limiting teeth 3131 corresponding to the position on the automatically adjusted member 31 in a clamping manner, so that the second holding portion 22 and the first holding portion 12 are relatively fixed, the effect of locking while adjusting is achieved, and the user can apply force step by step and then clamp the member to be clamped conveniently. The distance that the second grip portion 22 approaches the first grip portion 12 is determined by the degree of force applied by the user.

It will be appreciated that the adjustment member 31 may be implemented as an adjustment strap having a certain flexibility, as desired. It may also be embodied as an adjustment rod with a certain rigidity, as long as it is ensured that the adjustment member 31 can function normally. Specifically, in the present embodiment, the adjusting member 31 is a flat adjusting belt, and a side of the adjusting belt, which is relatively close to the rotating assembly 60, is convexly provided with a plurality of second limiting teeth 3131.

Further, the first spacing teeth 32221 and the second spacing teeth 3131 have a certain hardness to ensure the reliability of the clamping, and the first spacing teeth 32221 and the second spacing teeth 3131 include, but are not limited to, being made of hard plastics or rigid metals. In the present embodiment, the first limiting teeth 32221 are protruding toward a direction relatively far from the first clamping end 11, and the second limiting teeth 3131 are protruding toward a direction relatively close to the first clamping end 11.

Further, the limiting component 32 further includes a first elastic member 323, where the first elastic member 323 is fixedly connected to the clamping member 322, and the first elastic member 323 is configured to drive the clamping member 322 to return to the unidirectional locking state after the external force is removed. Illustratively, when a user applies an external force to the locking member 322 through the operating member 321, the locking member 322 rotates to disengage the first and second limiting portions 3222 and 313 from each other, so that the second holding portion 22 can move freely relative to the adjusting member 31; further, after the user removes the external force, the elastic action of the first elastic member 323 makes the locking member 322 rotate and reset, the first limiting portion 3222 and the second limiting portion 313 are locked again, and the movement of the second holding portion 22 is limited, so that the holding distance between the first holding end 11 and the second holding end 21 is locked again.

Further preferably, the clamping member 322 includes a linkage portion 3221 and a first limiting portion 3222, the operating member 321 includes a pressing handle 3211 and a pressing portion 3212, the pressing portion 3212 abuts against the linkage portion 3221, and the pressing handle 3211 can apply force to the linkage portion 3221 through the pressing portion 3212 under the action of external force, so that the linkage portion 3221 drives the first limiting portion 3222 to rotate, and a released state is formed.

Further, the second clamping arm 20 further includes a fixing member 23 disposed on the second holding portion 22, a receiving space 231 is provided in the middle of the fixing member 23, the operating member 321 and the clamping member 322 are disposed in the receiving space 231, wherein the operating member 321 is rotatably connected to the fixing member 23 through a first rotating shaft 40 between the pressing handle 3211 and the pressing portion 3212, the clamping member 322 is rotatably connected to the fixing member 23 through a second rotating shaft 50, a part of a body of the first elastic member 323 is rotatably sleeved on the second rotating shaft 50 in a circumferential direction, a part of the body is threaded through the clamping member 322 to be fixedly connected with the clamping member 322, two ends of the first elastic member 323 are preferably threaded through and fixedly connected to the clamping member 322, and the middle is wound on the second rotating shaft 50. In this embodiment, the engaging member 322 is further provided with a avoiding groove 3223, and the first elastic member 323 is wound around a portion of the second rotating shaft 50 and is located in the avoiding groove 3223. When the limiting assembly 32 is not operated by an external force, the elastic force of the first elastic member 323 can keep the engaging member 322 engaged with the adjusting member 31.

Referring to fig. 5, fig. 7 and fig. 8 again, further, a middle area of the linkage portion 3221 has a concave area 32210, the concave area 32210 makes the linkage portion 3221 take a shape of a permutation, the linkage portion 3221 includes a first linkage wall 32211 and a second linkage wall 32212 located at two sides of the concave area 32210, and the first limiting portion 3222 is disposed at a side of the clamping member 322 relatively far from the second linkage wall 32212. When the limiting assembly 32 is operated, a user needs to apply an external force to the pressing handle 3211 of the operating member 321, and the pressing handle 3211 drives the pressing portion 3212 to rotate in a direction opposite to the rotation direction of the pressing handle 3211, so as to push the first linkage wall 32211 of the linkage portion 3221 to overcome the elastic action of the first elastic member 323 and drive the clamping member 322 to rotate, so that the first limiting portion 3222 is separated from the second limiting portion 313 to form a released state; at this time, when the user continuously rotates the first clamping arm 10 and the second clamping arm 20 to fold or unfold under the condition that the external force is continuously applied to the operating member 321, the adjusting member 31 will move in the second clamping arm 20 along with the first clamping arm 10, and when the first clamping arm 10 and the second clamping arm 20 rotate to a proper angle or reach a proper clamping position to clamp an article, the pressing handle 3211 can be released, and the clamping member 322 is driven to rotate and reset under the elastic action of the first elastic member 323, so that the first limiting portion 3222 and the second limiting portion 313 are mutually clamped again to form a unidirectional locking state.

Referring to fig. 9 to 15, fig. 9 is a schematic structural view of a second embodiment of a clamp 100 provided in the present application; FIG. 10 is a schematic view of the clamp 100 of FIG. 9 from another perspective; FIG. 11 is a schematic side view of the clamp 100 of FIG. 9;

FIG. 12 is a schematic cross-sectional view of the pliers 100 of FIG. 11 at A-A; FIG. 13 is an enlarged schematic view of the structure at Y in FIG. 12; FIG. 14 is a schematic view of a portion of the structure of the clamp 100 of FIG. 9; fig. 15 is a schematic view of a portion of the structure of the clamp 100 in fig. 9.

The present utility model is also provided with a second embodiment whose inventive concept is the same as that of the first embodiment, and most of the structure of the clamp 100 in the second embodiment is the same as that of the first embodiment, except that: in the present embodiment, the limiting component 32 is disposed on a side of the second holding portion 22 relatively close to the rotating component 60, the first end 311 of the adjusting member 31 is connected to a side of the first holding portion 12 relatively close to the rotating component 60, and the second end 312 of the adjusting member 31 is slidably disposed on a side of the second holding portion 22 relatively close to the first holding portion 12. By this arrangement, the portion of the adjuster 31 penetrating the second grip portion 22 can be prevented from interfering with the operation of the first and second arms 10 and 20 by the user, and the use feeling of the clamp 100 can be improved while ensuring the function of the adjustment lock mechanism 30.

It should be noted that, in this embodiment, the adjusting member 31 does not need to be bent, but the clamping position is raised relative to the first embodiment, the clamping arm is short, and a user needs to apply a larger force to engage the first limiting teeth 32221 and the second limiting teeth 3131 with each other, so that the labor-saving effect of the clamp 100 provided by the second embodiment is relatively reduced compared to the first embodiment.

Further, in the present embodiment, a through hole (not numbered) is formed at a position of the second holding portion 22 near the first clamping portion, and the second end 312 of the adjusting member 31 slidably passes through the through hole and is disposed on the second holding portion 22. In other words, in the present embodiment, a partial space between the first grip portion and the second grip portion is utilized, so that the second end 312 of the adjuster 31 can protrude outside the second clip arm 20 through the through hole and can move in the through hole.

Preferably, in the present embodiment, the adjusting member 31 is a rigid or rigid adjusting rod, the adjusting rod is flat, the first limiting teeth 32221 are protruding toward a direction relatively close to the first clamping end 11, and the second limiting teeth 3131 are protruding toward a direction relatively far away from the first clamping end 11.

It should be noted that, in the present embodiment, the structure of the clamping member 322 is mostly similar to that of the clamping member 322 in the first embodiment, and only the second linkage wall 32212 is slightly different, but the action of the clamping member 322 and the linkage process with the operating member 321 are still consistent with the principle and effect in the first embodiment, and will not be repeated here.

Referring to fig. 16 and 17, fig. 16 is a schematic cross-sectional view of a third embodiment of a clamp 100 provided in the present application; fig. 17 is an enlarged schematic view of the structure at Z in fig. 16. The present utility model is also provided with a third embodiment whose inventive concept is the same as that of the first embodiment, and most of the structure of the clamp 100 in the third embodiment is the same as that of the first embodiment, except that: the limiting component 32 is disposed on a side of the second holding portion 22 relatively far from the rotating component 60, the first end 311 of the adjusting component 31 is connected to a side of the first holding portion 12 relatively far from the rotating component 60, and the second end 312 of the adjusting component 31 slidably penetrates through a side of the second holding portion 22 relatively far from the rotating component 60.

The limiting assembly 32 comprises a moving part 324 and a clamping part 325, and the moving part 324 and the clamping part 325 are both arranged on the second holding part 22; the second grip portion 22 is movable along the adjuster 31 in a direction approaching the first grip portion 12 by the moving portion 324; the second grip portion 22 can be moved in a direction toward or away from the first grip portion 12 along the adjustment member 31 by the clamping portion 325.

The moving portion 324 includes a locking piece 3242 and a second elastic member 3243, the locking piece 3242 and the second elastic member 3243 are mounted on the first mounting portion 221, a first hole (not numbered) is provided in the locking piece 3242, the locking piece 3242 is sleeved with the adjusting member 31 through the second hole, and the locking piece 3242 can rotate relative to the adjusting member 31. Both ends of the second elastic member 3243 are respectively abutted against the locking piece 3242 and the inner wall of the first mounting portion 221, one end of the second elastic member 3243 is abutted against the supporting wall, the other end is abutted against the locking piece 3242, and the elastic action of the second elastic member 3243 can enable the locking piece 3242 to return to the state that the inner wall of the first hole clamps the adjusting member 31.

Further, the limiting assembly 32 further includes a toggle member 3241, where the toggle member 3241 is mounted on the second holding portion 22 and partially extends into the first mounting portion 221, for toggling the locking piece 3242, so that the locking piece 3242 can rotate relative to the adjusting member 31.

The principle of use of the moving part 324 is: in an unstressed state, the locking piece 3242 is inclined to the adjusting member 31 by the second elastic member 3243, and the inner wall of the first hole can clamp the adjusting member 31, so that the second holding portion 22 cannot move away from the first holding portion 12 relative to the adjusting member 31. When the user presses the locking piece 3242, the locking piece 3242 rotates and gradually becomes perpendicular to the adjusting member 31, and the inner wall of the first hole gradually moves away from the adjusting member 31, so that if the user applies a force along the direction of the adjusting member 31, the second holding portion 22 can move along the adjusting member 31 in a direction relatively approaching or relatively separating from the first holding portion 12. When the user releases the locking piece 3242, the locking piece 3242 is restored under the action of the second elastic member 3243, and the inner wall of the first hole is restored to a state of clamping the adjuster 31, thereby achieving the positioning of the moving portion 324.

It should be noted that, when the second holding portion 22 has a movement tendency away from the first holding portion 12 in a state that the inner wall of the first hole is in the clamping adjustment member 31, the inner wall of the first hole has a tendency to further clamp the adjustment member 31 under the action of inertia, so as to ensure that the movable frame body cannot move in a direction relatively away from the first holding portion 12. Conversely, when the second holding portion 22 has a movement tendency toward the first holding portion 12, the inner wall of the first hole has a tendency to release the adjusting member 31 under the action of inertia, so as to ensure that the clamping portion 325 can drive the second holding portion 22 to move toward the first holding portion 12.

Preferably, the number of the locking pieces 3242 is at least two, and the toggle member 3241 can drive one of the locking pieces 3242 to rotate, so that the other locking pieces 3242 are driven by the locking piece 3242 to rotate. With this arrangement, the biting force between the locking piece 3242 and the adjuster 31 can be improved.

The clamping portion 325 includes a force application handle 3251, a driving plate 3252 and a third elastic member 3253, wherein the driving plate 3252 is provided with a second hole (not numbered), and the driving plate 3252 is sleeved with the adjusting member 31 through the second hole; the driving piece 3252 and the third elastic piece 3253 are both disposed in the second mounting portion 222, the force application handle 3251 is hinged to an inner wall of the second mounting portion 222, and the force application handle 3251 can drive the driving piece 3252 to rotate, so that the inner wall of the second hole clamps the adjusting piece 31, and drives the clamping portion 325 to move to a side relatively close to the first holding portion 12; one end of the third elastic member 3253 abuts against the driving piece 3252, and the other end abuts against the supporting wall, so that the third elastic member 3253 elastically acts on the driving piece 3252, and the driving piece 3252 and the urging handle 3251 can be restored.

Specifically, the inner wall of the second mounting portion 222 is provided with a first arc-shaped supporting surface 224, the force application handle 3251 includes a force application portion 32511 and a pushing portion 32512, the force application portion 32511 and the pushing portion 32512 are respectively located at the outer side and the inner side of the second mounting portion 222, the force application portion 32511 is used for being pressed by a user, and the pushing portion 32512 is provided with a second arc-shaped supporting surface 32502 matched with the first arc-shaped supporting surface 224.

The clamping portion 325 is used in the following manner: in the unstressed state, the driving piece 3252 is in a state substantially perpendicular to the adjusting member 31, and the adjusting member 31 is capable of moving in the second hole, so as to avoid the clamping portion 325 from affecting the use of the moving portion 324. When the user applies force to the force applying portion 32511, the force applying handle 3251 rotates relative to the inner wall of the second mounting portion 222 about the hinge point, and can drive the driving piece 3252 to rotate, so that the inner wall of the second hole on the driving piece 3252 clamps the adjusting member 31; since the urging portion 32511 rotates to a side relatively away from the first holding portion 12, the pushing portion 32512 correspondingly rotates to a side relatively close to the first holding portion 12, and a force toward the first holding portion 12 can be applied to the first arc-shaped support surface 224 on the second arc-shaped support surface 32502, at this time, the inner wall of the second mounting portion 222 can move in a direction close to the first holding portion 12 with the contact position of the inner wall of the second hole and the adjusting member 31 as a fulcrum. When the user releases the force application portion 32511, the driving piece 3252 is restored to a state substantially perpendicular to the adjustment member 31 by the third elastic member 3253, and the third elastic member 3253 is further capable of pushing the driving piece 3252 to move in a direction approaching the first grip portion 12, so as to complete one clamping process of the clamping portion 325.

The second holding part 22 in the utility model can realize large-range movement along the adjusting part 31 through the moving part 324, realize small-range movement along the direction of the adjusting part 31 to the first holding part 12 through the clamping part 325, and can apply pressing force to the part to be clamped so as to prevent the part to be clamped from falling out from between the first clamping end 11 and the second clamping end 21.

Preferably, the number of the driving plates 3252 is at least two, and the force application handle 3251 can drive one of the driving plates 3252 to rotate, and the other driving plates 3252 are driven by the driving plates 3252 to rotate. With this arrangement, the biting force between the driving piece 3252 and the adjuster 31 can be improved.

Further, the adjusting member 31 is a strip-shaped sliding rod with a certain curvature, and is preferably a flat strip-shaped sliding rod; the sliding rod is provided with curved transition walls at two sides along the length direction. The flat bar-shaped sliding rod with a certain curvature can relatively improve the contact area between the inner wall of the first hole and the inner wall of the second hole and the adjusting piece 31, so that the inner wall of the second hole drives the second holding part 22 to move relative to the adjusting piece 31, and the biting force of the inner wall of the first hole to the adjusting piece 31 is enhanced. In addition, the curved transition walls are arranged on the two sides of the sliding rod along the length direction, so that a user can conveniently press the toggle piece 3241 and the force application handle 3251, the labor-saving effect is achieved, and the abrasion to the locking piece 3242 and the driving piece 3252 adjusting piece 31 is reduced.

Preferably, in the present embodiment, the adjusting member 31 is a rigid member, and its material includes, but is not limited to, iron, stainless steel, and the like.

Compared with the prior art, the clamp 100 provided by the utility model can adjust and lock the clamping state between the first clamping arm 10 and the second clamping arm 20 through the adjusting and locking mechanism 30, so that the second holding part 22 can move on the adjusting piece 31 in a large range and the second holding part can move on the adjusting rod in a small range, the clamping effect and clamping force of the clamp 100 to the clamping piece can be correspondingly adjusted, and the overall practicability and the use convenience of the clamp are improved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of the present application is to be determined by the following claims.

Claims (11)

1. The clamp comprises a first clamping arm, a second clamping arm and a rotating assembly, wherein the first clamping arm is rotationally connected with the second clamping arm through the rotating assembly; the first clamping arm is provided with a first holding part and a first clamping end, the second clamping arm is provided with a second holding part and a second clamping end, and the first clamping end and the second clamping end are matched with each other to clamp a piece to be clamped; it is characterized in that the method comprises the steps of,

the clamp also comprises an adjusting and locking mechanism, wherein the adjusting and locking mechanism comprises an adjusting piece and a limiting assembly, one end of the adjusting piece is fixedly connected with the first holding part, the second holding part is movably connected with the adjusting piece, and the limiting assembly is arranged on the second holding part;

the adjusting and locking mechanism is provided with a unidirectional locking state and a release state, in the unidirectional locking state, the second holding part can move towards the direction close to the first holding part under the action of external force, and the limiting component can be blocked against the adjusting piece in a unidirectional way so as to prevent the second holding part from moving towards the direction far away from the first holding part; in the released state, the second grip portion is free to move relative to the adjustment member to be either closer to or farther from the first grip portion.

2. The clamp of claim 1, wherein the adjustment member has opposite, facing away, first and second ends, the first end of the adjustment member being connected to the first gripping portion of the first clamping arm, the second end of the adjustment member being slidably disposed on the second clamping arm.

3. The clamp of claim 2, wherein the limiting assembly is disposed on a side of the second holding portion that is relatively far from the rotating assembly, the first end of the adjusting member is connected to a side of the first holding portion that is relatively far from the rotating assembly, and the second end of the adjusting member is slidably attached to a side of the second holding portion that is relatively close to the first holding portion.

4. The clamp of claim 2, wherein the limiting assembly is disposed on a side of the second grip portion that is relatively close to the rotating assembly, the first end of the adjusting member is connected to a side of the first grip portion that is relatively close to the rotating assembly, and the second end of the adjusting member is slidably disposed through a side of the second grip portion that is relatively close to the rotating assembly.

5. The clamp of claim 3 or 4, wherein the limit assembly comprises an operating member and a clamping member that are interlocked with each other, the clamping member comprising a first limit portion, the adjusting member comprising a second limit portion; in the unidirectional locking state, the first limiting part and the second limiting part are matched with each other; in the release state, the first limit part and the second limit part are separated from each other; the operation piece is used for driving the clamping piece to rotate under the action of external force so as to enable the adjusting and locking mechanism to be switched between the unidirectional locking state and the release state.

6. The clamp of claim 5, wherein the first and second stop portions are ratcheted together.

7. The clamp of claim 5, wherein the limiting assembly further comprises a first elastic member, the first elastic member is fixedly connected to the clamping member, and the first elastic member is used for driving the clamping member to return to the unidirectional locking state after the external force is removed.

8. The clamp of claim 5, wherein the clamping member comprises a linkage part and the first limiting part, the operating member comprises a pressing handle and a pressing part, the pressing part is abutted against the linkage part, the pressing handle can apply force to the linkage part through the pressing part under the action of external force, and the linkage part drives the first limiting part to rotate to form the release state.

9. The clamp of claim 2, wherein the limiting assembly is disposed on a side of the second holding portion opposite from the rotating assembly, the first end of the adjusting member is connected to a side of the first holding portion opposite from the rotating assembly, and the second end of the adjusting member is slidably disposed through a side of the second holding portion opposite from the rotating assembly.

10. The clamp of claim 9, wherein the limit assembly includes a moving portion and a clamping portion, the moving portion and the clamping portion each being mounted to the second gripping portion; the second holding part can move along the adjusting piece to a direction approaching to the first holding part through the moving part; the second holding part can move along the clamping part in a direction approaching or separating from the first holding part along the adjusting piece.

11. The clamp of claim 9, wherein the adjustment member is a bar-shaped slide bar having a curvature, the slide bar having curved transition walls along both sides of the length thereof.

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