CN117086786A - clamping tool - Google Patents

Abstract

The application provides a clamping tool, comprising: the first clamp body comprises a first handle body and a first clamp head arranged at one end of the first handle body; the second forceps body comprises a second handle body and a second forceps head arranged at one end of the second handle body, and the second forceps body is hinged with the first forceps body; the locking pin joint mechanism is movably arranged at the hinge joint of the first clamp body and the second clamp body; the locking pin-joint mechanism comprises an unlocking state and a locking state, and in the locking state, the first clamp head is in pivot connection with the second clamp head; in the unlocked state, the first binding clip and the second binding clip can be close to each other or far away from each other. The technical scheme of the application effectively solves the problem of poor universality of the pliers in the related technology.

Description

Clamping tool

Technical Field

The application relates to the technical field of hardware tools, in particular to a clamping tool.

Background

The pliers are tools commonly used in maintenance, and in particular, can be used to hold various parts or to remove parts.

In the related art, the opening of the jaw is realized through the hinge shaft, but the position of the hinge shaft is fixed, so that the opening size of the jaw is fixed, and the clamp can only adapt to parts with a certain size range, so that the clamp has better universality.

Disclosure of Invention

The present application provides a clamping tool to solve the problem of poor versatility of pliers in the related art.

In order to achieve the above object, the present application provides a clamping tool comprising: the first clamp body comprises a first handle body and a first clamp head arranged at one end of the first handle body; the second forceps body comprises a second handle body and a second forceps head arranged at one end of the second handle body, and the second forceps body is hinged with the first forceps body; the locking pin joint mechanism is movably arranged at the hinge joint of the first clamp body and the second clamp body; the locking pin-joint mechanism comprises an unlocking state and a locking state, and in the locking state, the first clamp head is in pivot connection with the second clamp head; in the unlocked state, the first binding clip and the second binding clip can be close to each other or far away from each other.

Further, the first clamp body and the second clamp body are arranged in a crossing mode.

Further, when the locking pivot mechanism rotates or moves, the locking pivot mechanism is switched between a locking state and an unlocking state, and when the locking pivot mechanism is in the unlocking state, the locking pivot mechanism can move so as to enable the first clamp head and the second clamp head to be close to or far away from each other.

Further, when the locking pivot mechanism is in the unlocked state, the first binding clip moves towards the second binding clip, or the second binding clip moves towards the first binding clip.

Further, the second handle body comprises a containing groove, at least part of the structure of the first handle body can be inserted into the containing groove, a first sliding groove is formed in the first handle body, and the locking pivot mechanism is movably arranged in the first sliding groove.

Further, the locking pivot mechanism comprises a hinge shaft and a locking piece, and the hinge shaft is arranged on the second handle body in a penetrating mode and the locking piece.

Further, a clamping structure is arranged between the locking piece and the inner wall of the first sliding groove, the clamping structure comprises a first convex tooth and a first rack, one of the first convex tooth and the first rack is arranged on the locking piece, the other of the first convex tooth and the first rack is arranged in the first sliding groove, and the first convex tooth and the first rack are in clamping fit.

Further, the first tooth is disposed on the locking member, the first rack is disposed on an inner wall of the first chute close to the first binding clip, the first tooth protrudes toward one side of the first binding clip, or the first rack is disposed on an inner wall of the first chute far away from the first binding clip, and the first tooth protrudes toward one side far away from the first binding clip.

Further, the clamping tool further comprises an abutting piece, wherein the abutting piece is fixed on one of the first handle body and the second handle body and is in abutting fit with the other one of the first handle body and the second handle body.

Further, the abutting piece is arranged on the second handle body and is in abutting fit with the first handle body.

Further, the abutting piece comprises a spring piece.

Further, the abutting piece comprises a spring arm, the spring arm is provided with a locking position and an unlocking position, when the spring arm is in the locking position, the spring arm is located in the second handle body, when the spring arm is in the unlocking position, the spring arm is in supporting fit with the first handle body, and the first handle body is driven to move in a direction away from the second handle body.

Further, the locking piece includes first locking piece and the lug of being connected with first locking piece, and first dogtooth sets up on first locking piece, and first locking piece movably sets up in first spout, still is provided with the second spout on the first handle body, and the lug movably sets up in the second spout, and the inside wall of holding tank epirelief is equipped with the stopper post that is located the second spout, and the stopper post cooperates with the lug.

Further, the first chute and the second chute are adjacently arranged and communicated.

Further, one side of the first locking block, which is far away from the second chute, is provided with a first mounting hole, and the locking pivot mechanism further comprises a first elastic piece, wherein the first elastic piece is inserted into the first mounting hole and is in butt fit with the inner wall of the first chute.

Further, the hinge shaft can move along the axis direction, a spiral groove is formed in the side wall of the hinge shaft, a second mounting hole is formed in the locking piece, a driving block extending into the second mounting hole is arranged on the locking piece, and the driving block is inserted into the spiral groove.

Further, the first end of the hinge shaft is located at the first side of the second handle body and is provided with a first pressing portion, the second end of the hinge shaft is located at the second side of the second handle body and is provided with a threaded portion, the locking and pivoting mechanism further comprises a second elastic piece and a fastening piece, the second elastic piece is arranged between the first pressing portion and the first side of the second handle body, and the fastening piece is fixedly connected with the threaded portion.

Further, a first concave part is arranged on the first side of the second handle body, a second concave part is arranged on the second side of the second handle body, the second elastic piece is arranged in the second concave part, and the fastener is arranged in the second concave part.

Further, the locking piece includes second locking piece and guide block, and the guide block sets up in the first lateral wall of second locking piece, and at least one side of guide block is provided with the second dogtooth, is provided with guide way and second rack on the lateral wall of first spout, and the guide block cooperates with the guide way direction, second dogtooth and second rack joint cooperation.

Further, the locking piece includes the third mounting hole, and the third mounting hole sets up in the center of second locking piece and runs through the guide block, and the articulated shaft wears to establish in the third mounting hole, and the first end of articulated shaft is provided with the second and presses the portion, and locking pin joint mechanism still includes the third elastic component, and the third elastic component sets up between second pressing portion and the second handle body.

Further, a first clamping surface is arranged on one side, facing the second clamp body, of the first clamp head, a second clamping surface is arranged on one side, facing the first clamp head, of the second clamp head, the first clamping surface comprises a first face, a second face and a third face, a first obtuse angle is formed between the first face and the second face, a second obtuse angle is formed between the second face and the third face, the second clamping surface comprises a fourth face, a fifth face and a sixth face, a third obtuse angle is formed between the fourth face and the fifth face, a fourth obtuse angle is formed between the fifth face and the sixth face, the first obtuse angle is larger than the second obtuse angle, and the third obtuse angle is larger than the fourth obtuse angle.

Further, a first tooth groove is formed in the first face, a second tooth groove is formed in the second face, a smooth surface is arranged on the third face, a third tooth groove is formed in the fourth face, a smooth surface is arranged on the fifth face, a fourth tooth groove is formed in the sixth face, the tooth width of the first tooth groove is smaller than that of the second tooth groove, the tooth width of the third tooth groove is smaller than that of the fourth tooth groove, the tooth width of the first tooth groove is equal to that of the third tooth groove, and the tooth width of the third tooth groove is equal to that of the fourth tooth groove.

By applying the technical scheme of the application, the first clamp body and the second clamp body are hinged, the first clamp body comprises a first handle body and a first clamp head arranged at the end part of the first handle body, the second clamp body comprises a second handle body and a second clamp head arranged at the end part of the second handle body, and the opening angle between the first clamp body and the second clamp body can be increased and decreased. The locking pin joint mechanism is arranged at the hinge joint of the first clamp body and the second clamp body, and has a locking state and an unlocking state, when the locking pin joint mechanism is in the unlocking state, the first clamp head and the second clamp head can be mutually close to and far away from each other. Through foretell setting, locking pin joint mechanism is portable, and then makes the pin joint of the first pincers body and the second pincers body change, and then makes the opening between first binding clip and the second binding clip can enlarge, makes like this can make the centre gripping instrument can the centre gripping not unidimensional part. Therefore, the technical scheme of the application effectively solves the problem of poor universality of the pliers in the related technology.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

fig. 1 shows a schematic perspective view of a first embodiment of a gripping tool according to the application;

FIG. 2 shows a schematic cross-sectional view of the clamping tool of FIG. 1;

FIG. 3 shows a partial enlarged view at A of the gripping tool of FIG. 2;

FIG. 4 shows an exploded view of the gripping tool of FIG. 1;

FIG. 5 shows a schematic side view of a second clamp body of the clamping tool of FIG. 4;

FIG. 6 shows a perspective schematic view of the gripping tool of FIG. 1;

FIG. 7 shows a schematic view of the second jaw body of the gripping tool of FIG. 1 rotated;

FIG. 8 shows a schematic view of the first tooth and first rack of the gripping tool of FIG. 1 separated;

FIG. 9 shows a schematic view of the engagement of the first teeth and the first rack of the gripping tool of FIG. 1;

FIG. 10 shows a schematic structural view of the clamping tool of FIG. 1 clamping a first part;

FIG. 11 shows a schematic structural view of the clamping tool of FIG. 1 clamping a second part;

FIG. 12 shows a schematic structural view of a third part of the clamping tool of FIG. 1;

fig. 13 shows a schematic view in partial vertical section of a second embodiment of a gripping tool according to the application;

FIG. 14 shows a schematic cross-sectional view of the gripping tool of FIG. 13;

FIG. 15 shows a schematic perspective view of the articulation shaft of the gripping tool of FIG. 13;

fig. 16 shows a schematic view in partial vertical section of a third embodiment of a gripping tool according to the application;

FIG. 17 shows a schematic perspective view of a second lock block of the clamping tool of FIG. 16;

fig. 18 shows a schematic bottom view of a second rack of the gripping tool of fig. 16.

Wherein the above figures include the following reference numerals:

10. a first clamp body; 11. a first handle body; 111. a first chute; 1111. a guide groove; 112. a second chute; 12. a first binding clip; 121. a first clamping surface; 1211. a first face; 1212. a second face; 1213. a third face; 20. a second clamp body; 21. a second handle body; 211. a receiving groove; 212. a stopper post; 213. a first concave portion; 214. a second concave portion; 22. a second binding clip; 221. a second clamping surface; 2211. a fourth face; 2212. a fifth face; 2213. a sixth face; 30. a locking pin joint mechanism; 31. a hinge shaft; 311. a spiral groove; 312. a first pressing portion; 313. a threaded portion; 314. a second pressing portion; 32. a locking member; 321. a first lock block; 3211. a first mounting hole; 322. a bump; 323. a second mounting hole; 324. a driving block; 325. a second lock block; 326. a guide block; 327. a third mounting hole; 33. a first elastic member; 341. a second elastic member; 342. a fastener; 35. a third elastic member; 40. a clamping structure; 41. a first lobe; 42. a first rack; 50. an abutment; 61. a second lobe; 62. and a second rack.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

As shown in fig. 1 to 5, in the first embodiment, the holding tool includes: the first clamp body 10, the second clamp body 20 and the locking pivot mechanism 30. The first clamp body 10 comprises a first handle body 11 and a first clamp head 12 arranged at one end of the first handle body 11. The second pliers body 20 comprises a second handle body 21 and a second pliers head 22 arranged at one end of the second handle body 21, and the second pliers body 20 is hinged with the first pliers body 10. The locking pivot mechanism 30 is movably disposed at the hinge of the first jaw body 10 and the second jaw body 20. Wherein the locking pivot mechanism 30 comprises an unlocked state and a locked state in which the first binding clip 12 is pivotally connected to the second binding clip 22; in the unlocked state, the first and second binding heads 12, 22 can be moved closer to or further from each other.

By applying the technical scheme of the embodiment, the first forceps body 10 and the second forceps body 20 are hinged, the first forceps body 10 comprises a first handle body 11 and a first forceps head 12 arranged at the end part of the first handle body 11, the second forceps body 20 comprises a second handle body 21 and a second forceps head 22 arranged at the end part of the second handle body 21, and the opening angle between the first forceps body 10 and the second forceps body 20 can be increased and decreased. The locking pivot 30 is provided at the hinge of the first and second jaw bodies 10 and 20, and the locking pivot 30 has a locked state and an unlocked state, when in the unlocked state, the first and second jaws 12 and 22 can be moved toward and away from each other. Through the above arrangement, the locking pivot mechanism 30 is movable, so that the hinge point of the first clamp body 10 and the second clamp body 20 can be changed, and the opening between the first clamp head 12 and the second clamp head 22 can be enlarged, so that the clamping tool can clamp parts with different sizes. Therefore, the technical scheme of the embodiment effectively solves the problem of poor universality of the pliers in the related technology.

The first clamp body 10 and the second clamp body 20 are arranged in a crossing manner. The relative movement of the first jaw body 10 and the second jaw body 20 is more stable by the arrangement described above. Specifically, in this embodiment, a part of the structure of the first caliper body extends into the second caliper body.

In an embodiment not shown in the drawings, part of the structures of the first clamp body and the second clamp body are jointed, and the locking pivot mechanism is located at the joint of the first clamp body and the second clamp body. Specifically, the first clamp body and the second clamp body are both sheet-shaped. This also enables the above-mentioned functions to be achieved, i.e. the distance between the first jaw and the second jaw can be increased and decreased, so that it can be used with parts of different sizes.

When the locking pivot mechanism 30 rotates or moves, the locking pivot mechanism 30 is switched between a locked state and an unlocked state, and when the locking pivot mechanism 30 is in the unlocked state, the locking pivot mechanism 30 can move so as to enable the first clamp head 12 and the second clamp head 22 to be close to each other or far away from each other. The above arrangement can effectively achieve unlocking and locking of the locking pivot mechanism 30, which can achieve relative distance and relative approach of the first and second clamp bodies 10 and 20.

When the locking pivot 30 is in the unlocked state, the first binding clip 12 moves toward the second binding clip 22, and in particular, the solution of this embodiment is to enable a single movement of the first binding clip 12. Of course, the second binding clip 22 moves toward the first binding clip 12. I.e. the second jaw body is also individually movable.

As shown in fig. 1 to 5, in the first embodiment, the second handle 21 includes a receiving groove 211, at least a portion of the first handle 11 is configured to be inserted into the receiving groove 211, the first handle 11 is provided with a first sliding groove 111, and the locking pivot mechanism 30 is movably disposed in the first sliding groove 111. The receiving groove 211 is provided at a side portion of the second handle body 21 and penetrates the second handle body 21, so that the first handle body 11 can be penetrated out of the receiving groove 211 and the first and second jaw bodies 10 and 20 can be hinged. The first sliding groove 111 is disposed on the first handle body 11, the first sliding groove 111 penetrates through the first handle body 11, the locking pivot mechanism 30 is disposed in the first sliding groove 111, the first sliding groove 111 is located in the accommodating groove 211, and the locking pivot mechanism 30 can move in the first sliding groove 111, so that the hinge point of the first pliers body 10 and the second pliers body 20 moves in the first sliding groove 111. This allows the opening between the first binding clip 12 and the second binding clip 22 to be enlarged.

As shown in fig. 1 to 5, in the first embodiment, the lock pivot mechanism 30 includes a hinge shaft 31 and a lock member 32, and the hinge shaft 31 is provided to penetrate the second handle body 21 and the lock member 32. The locking piece 32 can lock the position of the locking piece 32, namely when the hinge point does not need to move continuously, the locking piece 32 can lock the position of the hinge point, so that the first clamp body 10 and the second clamp body 20 are more stable to be close to each other. The middle point of the hinge shaft 31 is a hinge point, and the hinge shaft 31 can connect the locking member 32 with the second handle body 21, and since the locking member 32 is located between the receiving groove 211 of the second handle body 21 and the first sliding groove 111, the first handle body 11 and the second handle body 21 can be hinged together, and the rotation of the first clamp body 10 and the second clamp body 20 can be realized.

As shown in fig. 1 to 9, in the first embodiment, a clamping structure 40 is disposed between the locking member 32 and the inner wall of the first sliding slot 111, the clamping structure 40 includes a first tooth 41 and a first rack 42, one of the first tooth 41 and the first rack 42 is disposed on the locking member 32, the other of the first tooth 41 and the first rack 42 is disposed in the first sliding slot 111, and the first tooth 41 and the first rack 42 are in clamping fit. The clamping structure can lock the locking piece and the first clamp body, specifically, the clamping structure comprises a first convex tooth and a first rack, the first convex tooth and the first rack can be meshed with each other, and after the first rack and the first convex tooth are meshed, the locking piece and the first handle body can be locked. In this embodiment, the first tooth is disposed on the locking member, and the first rack is disposed on the first chute.

As shown in fig. 1 to 9, in the first embodiment, the first tooth 41 is disposed on the locking member 32, the first rack 42 is disposed on the inner wall of the first chute 111 near the first binding clip 12, and the first tooth 41 protrudes toward one side of the first binding clip 12. The first rack 42 is provided on the inner wall of the first chute 111, so that the length of the first rack 42 can be made sufficiently large, i.e., the locking positions of the first teeth 41 and the first rack 42 can be made large. While the first rack 42 is arranged on the inner wall of the first chute 111 close to the first binding clip 12, which makes locking of the locking element 32 simpler.

Of course, in the embodiment not shown in the drawings, the first rack is disposed on the inner wall of the first chute away from the first binding clip, and the first tooth protrudes toward the side away from the first binding clip.

It should be noted that, the first chute 111 includes a bottom wall, a top wall, and two connecting walls connected between the top wall and the bottom wall, the top wall is located between the bottom wall and the first clamp head 12, and the inner wall of the first chute 111 near the first clamp head 12 is referred to as the top wall.

As shown in fig. 1, 2 and 4, in the first embodiment, the clamping tool further includes an abutment 50, and the abutment 50 is fixed to one of the first shank 11 and the second shank 21 and is in abutting engagement with the other of the first shank 11 and the second shank 21. The provision of the abutment 50 enables the distance between the first and second shanks 11 and 21 to be increased, and thus the opening distance between the first and second jaws 12 and 22 to be increased.

As shown in fig. 1, 2 and 4, in the first embodiment, the abutting member 50 is disposed on the second handle body 21 and is in abutting engagement with the first handle body 11, and one end of the abutting member 50 is fixedly disposed with the second handle body 21. The above arrangement can stabilize the position of the abutment 50.

In an embodiment not shown in the figures, the abutment is provided integrally with the first shank.

As shown in fig. 1, 2 and 4, in the first embodiment, the abutting member 50 includes a spring. The spring plate has a simple structure and is convenient to set. Of course, the abutting member 50 may also be an elastic member, and when the abutting member 50 is an elastic member, the elastic member is connected between the first handle body 11 and the second handle body 21, and the first handle body 11 and the second handle body 21 are stretched under the action of the elastic member.

In another embodiment, the abutment 50 includes a spring arm having a locked position, the spring arm being positioned inside the second handle 21 when the spring arm is in the locked position, the spring arm being in supporting engagement with the first handle 11 when the spring arm is in the unlocked position and driving the first handle 11 to move in a direction away from the second handle 21. The setting of bullet arm is comparatively easy, and the bullet arm can be moved towards first handle body 11, and specifically, the removal of bullet arm is the rotation, and when the bullet arm rotated, can push up first handle body 11. This enables the first shank 11 and the second shank 21 to be moved away from each other.

As shown in fig. 1 to 9, in the first embodiment, the locking member 32 includes a first locking block 321 and a protruding block 322 connected to the first locking block 321, the first protruding tooth 41 is disposed on the first locking block 321, the first locking block 321 is movably disposed in the first sliding groove 111, the first handle 11 is further provided with the second sliding groove 112, the protruding block 322 is movably disposed in the second sliding groove 112, the inner sidewall of the accommodating groove 211 is perforated with a stop post 212 located in the second sliding groove 112, and the stop post 212 is matched with the protruding block 322. When the second handle 21 rotates, the stop post 212 is in abutting engagement with the bump 322, so that the first tooth 41 and the first rack 42 are unlocked.

As shown in fig. 1 to 9, in the first embodiment, the first chute 111 is disposed adjacent to and communicates with the second chute 112. The above arrangement can make the overall structure simpler, and is convenient for set up, and the lug 322 movably sets up in the second spout 112, and the backstop post 212 cooperates with the lug 322. Specifically, the projection 322 is located at a side of the first locking piece 321.

In an embodiment not shown in the figures, the projection is located at one end of the first locking block, such that the first runner and the second runner need not be located adjacent.

As shown in fig. 1 to 9, in the first embodiment, a first mounting hole 3211 is provided on a side of the first locking block 321 facing away from the second sliding chute 112, and the locking pivot mechanism 30 further includes a first elastic member 33, where the first elastic member 33 is inserted into the first mounting hole 3211 and is in abutting engagement with an inner wall of the first sliding chute 111. The first elastic member 33 is disposed in the first mounting hole 3211 and is in abutting engagement with the bottom wall of the first sliding groove 111, when the stop post 212 is in abutting engagement with the protrusion 322, the first elastic member 33 is compressed, when the second handle 21 is no longer driven, no stop is provided between the stop post 212 and the protrusion 322, the first locking block 321 is supported under the action of the first elastic member 33, so that the first protruding tooth 41 and the first rack 42 are meshed with each other, and the position of the locking member 32 is stable.

As shown in fig. 10 to 12, in the first embodiment, a first clamping surface 121 is disposed on a side of the first jaw 12 facing the second jaw 20, a second clamping surface 221 is disposed on a side of the second jaw 22 facing the first jaw 12, the first clamping surface 121 includes a first face 1211, a second face 1212 and a third face 1213, a first obtuse angle is disposed between the first face 1211 and the second face 1212, a second obtuse angle is disposed between the second face 1212 and the third face 1213, the second clamping surface 221 includes a fourth face 2211, a fifth face 2212 and a sixth face 2213, a third obtuse angle is disposed between the fourth face 2211 and the fifth face 2212, a fourth obtuse angle is disposed between the fifth face 2212 and the sixth face 2213, the first obtuse angle is greater than the second obtuse angle, and the third obtuse angle is greater than the fourth obtuse angle. The arrangement described above enables the cooperation of the first and second binding heads 12, 22 to jointly effect gripping of articles of different shapes.

As shown in fig. 10 to 12, in the first embodiment, the first face 1211 is provided with a first tooth groove, the second face 1212 is a smooth surface, the third face 1213 is provided with a second tooth groove, the fourth face 2211 is provided with a third tooth groove, the fifth face 2212 is provided with a fourth tooth groove, the sixth face 2213 is a smooth surface, the tooth width of the first tooth groove is smaller than the tooth width of the second tooth groove, the tooth width of the third tooth groove is smaller than the tooth width of the fourth tooth groove, the tooth width of the first tooth groove is equal to the tooth width of the third tooth groove, and the tooth width of the third tooth groove is equal to the tooth width of the fourth tooth groove. The arrangement described above can avoid the occurrence of a break-away during clamping. And further, the clamping stability is better.

Specifically, as shown in fig. 6 to 9, the use process of the technical solution of the first embodiment is as follows:

the first pliers body 10 is kept still, the second handle body 21 is unfolded and rotated around the hinge shaft 31, the stop column 212 pushes the protruding block 322 to enable the locking piece 32 to rotate, after a certain angle is rotated, the first protruding teeth 41 and the first rack 42 are separated, at this time, the second pliers body 20 can move along the direction of the first sliding groove 111, after moving to a proper position, the second handle body 21 is folded, the stop column 212 is separated from the protruding block 322, namely, stop matching is not performed any more, the locking piece 32 is reset under the action of the first elastic piece 33, and then the first protruding teeth 41 and the first rack 42 are meshed, so that the opening process of the clamping tool is realized.

The second embodiment differs from the first embodiment in that the unlocking mode in the first embodiment is the rotation of the locking member 32, and the rotation of the locking member 32 is achieved by the cooperation of the stop post 212 and the projection 322 and the first elastic member 33. While in the embodiment, the locking member 32 is unlocked by rotation, rotation of the locking member 32 is achieved by engagement of the helical groove 311 with the drive block 324.

As shown in fig. 13 to 15, in the second embodiment, the hinge shaft 31 is movable in the axial direction thereof, the spiral groove 311 is provided on the side wall of the hinge shaft 31, the second mounting hole 323 is provided on the lock member 32, the driving block 324 protruding into the second mounting hole 323 is provided on the lock member 32, and the driving block 324 is inserted into the spiral groove 311. The driving block 324 is in the spiral groove 311, when the hinge shaft 31 is pressed, the driving block 324 can move along the spiral groove 311, namely, the driving block 324 swings within a certain angle range, and the driving block 324 is arranged on the locking piece 32, so that the locking piece 32 also swings, at the moment, the first convex teeth 41 and the first rack 42 can be separated, the arrangement mode is simple, and the position of the hinge shaft 31 can be changed.

As shown in fig. 13 to 15, in the second embodiment, the first end of the hinge shaft 31 is located at the first side of the second handle body 21 and is provided with the first pressing portion 312, the second end of the hinge shaft 31 is located at the second side of the second handle body 21 and is provided with the threaded portion 313, the locking pivot mechanism 30 further includes the second elastic member 341 and the fastening member 342, the second elastic member 341 is disposed between the first pressing portion 312 and the first side of the second handle body 21, and the fastening member 342 is fixedly connected with the threaded portion 313. The above-described arrangement of the fastener 342 and the first pressing portion 312 can secure the stable position of the hinge shaft 31, and when the hinge shaft 31 moves, the second elastic member 341 can drive the hinge shaft 31 to return, thereby engaging the first teeth 41 with the first racks 42.

As shown in fig. 13 to 15, in the second embodiment, the first side of the second shank 21 is provided with the first recess 213, the second side of the second shank 21 is provided with the second recess 214, the second elastic member 341 is provided in the second recess 214, and the fastener 342 is provided in the second recess 214. The arrangement of the first recess 213 and the second recess 214 can make the overall structure more regular.

The difference between the third embodiment and the second embodiment is that the locking position is changed, in the second embodiment, the locking position is on the inner wall of the first chute 111 near the first clamp head 12, and the locking position of the third embodiment is on the side wall of the first chute 111 far from the first clamp head 12.

As shown in fig. 16 to 18, in the third embodiment, the locking member 32 includes a second locking block 325 and a guide block 326, the guide block 326 is disposed on a first side wall of the second locking block 325, at least one side of the guide block 326 is provided with a second tooth 61, a guide groove 1111 and a second rack 62 are disposed on a side wall of the first chute 111, the guide block 326 is in guide fit with the guide groove 1111, and the second tooth 61 and the second rack 62 are in snap fit. The guide block 326 is able to move within the guide groove 1111, thereby making the movement of the second locking block 325 more stable. When the hinge shaft 31 is pressed, the second tooth 61 and the second rack 62 can be disengaged from each other, and the ground locking member 32 can be moved in the first slide groove 111.

Specifically, as shown in fig. 16 to 18, in the third embodiment, the guide block 326 is provided on the center line of the second lock block 325, and divides the surface of the second lock block 325 away from the first binding clip 12 into two parts, on both of which the second teeth 61 are provided.

As shown in fig. 16 to 18, in the third embodiment, the locking member 32 includes a third mounting hole 327, the third mounting hole 327 is provided at the center of the second locking block 325 and penetrates the guide block 326, the hinge shaft 31 is provided in the third mounting hole 327 in a penetrating manner, the first end of the hinge shaft 31 is provided with the second pressing portion 314, the locking pivot mechanism 30 further includes a third elastic member 35, and the third elastic member 35 is provided between the second pressing portion 314 and the second handle body 21. The third elastic member 35 is configured to drive the hinge shaft 31 to return, so that the second teeth 61 and the second racks 62 are engaged with each other, and thus the second locking block 325 is locked.

In the description of the present application, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present application.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (22)

1. A clamping tool, comprising:

the first clamp body (10) comprises a first handle body (11) and a first clamp head (12) arranged at one end of the first handle body (11);

the second forceps body (20) comprises a second handle body (21) and a second forceps head (22) arranged at one end of the second handle body (21), and the second forceps body (20) is hinged with the first forceps body (10);

a locking pivot mechanism (30) movably arranged at the hinge joint of the first clamp body (10) and the second clamp body (20);

wherein the locking pivot mechanism (30) comprises an unlocked state and a locked state, in which the first binding clip (12) is pivotally connected to the second binding clip (22); in the unlocked state, the first and second jaws (12, 22) can be moved closer to or further from each other.

2. Gripping tool according to claim 1, characterized in that the first jaw body (10) and the second jaw body (20) are arranged crosswise.

3. Gripping tool according to claim 1, wherein the locking pivot (30) is rotated or moved to switch the locking pivot (30) between the locked state and the unlocked state, the locking pivot (30) being movable to bring the first and second jaws (12, 22) closer to or further away from each other when the locking pivot (30) is in the unlocked state.

4. Gripping tool according to claim 1, characterized in that the first jaw (12) is moved towards the second jaw (22) or the second jaw (22) is moved towards the first jaw (12) when the locking pivot (30) is in the unlocked state.

5. Clamping tool according to claim 2, wherein the second shank (21) comprises a receiving groove (211), at least part of the first shank (11) is insertable into the receiving groove (211), the first shank (11) is provided with a first slide groove (111), and the locking pivot (30) is movably arranged in the first slide groove (111).

6. Clamping tool according to claim 5, characterized in that the locking pivot (30) comprises a hinge shaft (31) and a locking element (32), the hinge shaft (31) being arranged through the second shank (21) and the locking element (32).

7. The clamping tool according to claim 6, wherein a clamping structure (40) is arranged between the locking piece (32) and the inner wall of the first sliding groove (111), the clamping structure (40) comprises a first convex tooth (41) and a first rack (42), one of the first convex tooth (41) and the first rack (42) is arranged on the locking piece (32), the other of the first convex tooth (41) and the first rack (42) is arranged in the first sliding groove (111), and the first convex tooth (41) and the first rack (42) are in clamping fit.

8. The clamping tool according to claim 7, wherein the first tooth (41) is disposed on the locking member (32), the first rack (42) is disposed on an inner wall of the first chute (111) near the first clamp head (12), the first tooth (41) protrudes toward one side of the first clamp head (12), or the first rack (42) is disposed on an inner wall of the first chute (111) far away from the first clamp head (12), and the first tooth (41) protrudes toward one side far away from the first clamp head (12).

9. The clamping tool according to claim 6, further comprising an abutment (50), the abutment (50) being fixed to one of the first shank (11) and the second shank (21) and being in abutting engagement with the other of the first shank (11) and the second shank (21).

10. Clamping tool according to claim 9, wherein the abutment (50) is provided on the second shank (21) and cooperates in abutment with the first shank (11).

11. Clamping tool according to claim 10, wherein the abutment (50) comprises a spring.

12. Clamping tool according to claim 9, wherein the abutment (50) comprises a spring arm having a locked position and an unlocked position, the spring arm being located inside the second shank (21) when the spring arm is in the locked position, the spring arm being in supporting engagement with the first shank (11) and driving the first shank (11) in a direction away from the second shank (21).

13. The clamping tool according to claim 7, wherein the locking piece (32) comprises a first locking block (321) and a protruding block (322) connected with the first locking block (321), the first protruding tooth (41) is arranged on the first locking block (321), the first locking block (321) is movably arranged in the first sliding groove (111), the first handle body (11) is further provided with a second sliding groove (112), the protruding block (322) is movably arranged in the second sliding groove (112), a stop column (212) located in the second sliding groove (112) is protruding on the inner side wall of the accommodating groove (211), and the stop column (212) is matched with the protruding block (322).

14. Clamping tool according to claim 13, characterized in that the first runner (111) is arranged adjacent and communicates with the second runner (112).

15. The clamping tool according to claim 13, wherein a first mounting hole (3211) is formed in a side of the first locking block (321) facing away from the second sliding groove (112), and the locking pivot mechanism (30) further comprises a first elastic member (33), and the first elastic member (33) is inserted into the first mounting hole (3211) and is in abutting fit with an inner wall of the first sliding groove (111).

16. Clamping tool according to claim 6, characterized in that the hinge shaft (31) is movable in its axial direction, a spiral groove (311) is provided on the side wall of the hinge shaft (31), a second mounting hole (323) is provided on the locking member (32), a driving block (324) extending into the second mounting hole (323) is provided on the locking member (32), and the driving block (324) is inserted into the spiral groove (311).

17. The clamping tool according to claim 16, wherein the first end of the hinge shaft (31) is located at a first side of the second handle body (21) and is provided with a first pressing portion (312), the second end of the hinge shaft (31) is located at a second side of the second handle body (21) and is provided with a threaded portion (313), the locking pivot mechanism (30) further comprises a second elastic member (341) and a fastening member (342), the second elastic member (341) is disposed between the first pressing portion (312) and the first side of the second handle body (21), and the fastening member (342) is fixedly connected with the threaded portion (313).

18. The clamping tool according to claim 17, wherein a first side of the second shank (21) is provided with a first recess (213), a second side of the second shank (21) is provided with a second recess (214), the second elastic member (341) is arranged in the second recess (214), and the fastener (342) is arranged in the second recess (214).

19. The clamping tool according to claim 6, wherein the locking member (32) comprises a second locking block (325) and a guide block (326), the guide block (326) is arranged on a first side wall of the second locking block (325), at least one side of the guide block (326) is provided with a second convex tooth (61), a guide groove (1111) and a second rack (62) are arranged on a side wall of the first sliding groove (111), the guide block (326) is in guide fit with the guide groove (1111), and the second convex tooth (61) is in clamping fit with the second rack (62).

20. The clamping tool according to claim 19, wherein the locking member (32) comprises a third mounting hole (327), the third mounting hole (327) is arranged at the center of the second locking block (325) and penetrates through the guide block (326), the hinge shaft (31) is arranged in the third mounting hole (327) in a penetrating manner, the first end of the hinge shaft (31) is provided with a second pressing portion (314), the locking pivoting mechanism (30) further comprises a third elastic member (35), and the third elastic member (35) is arranged between the second pressing portion (314) and the second handle body (21).

21. The clamping tool according to claim 1, wherein a first clamping surface (121) is provided on a side of the first jaw (12) facing the second jaw (20), a second clamping surface (221) is provided on a side of the second jaw (22) facing the first jaw (12), the first clamping surface (121) comprises a first face (1211), a second face (1212) and a third face (1213), a first obtuse angle is provided between the first face (1211) and the second face (1212), a second obtuse angle is provided between the second face (1212) and the third face (1213), the second clamping surface (221) comprises a fourth face (2211), a fifth face (2212) and a fourth face (2213), a third obtuse angle is provided between the fourth face (2211) and the fifth face (2212), a fourth obtuse angle is provided between the fifth face (2212) and the sixth face (2213), and a fourth obtuse angle is provided between the second face (1212) and the third obtuse angle is greater than the fourth obtuse angle.

22. The clamping tool of claim 21, wherein the first face (1211) is provided with a first tooth slot, the second face (1212) is provided with a second tooth slot, the third face (1213) is a smooth surface, the fourth face (2211) is provided with a third tooth slot, the fifth face (2212) is a smooth surface, the sixth face (2213) is provided with a fourth tooth slot, the tooth width of the first tooth slot is smaller than the tooth width of the second tooth slot, the tooth width of the third tooth slot is smaller than the tooth width of the fourth tooth slot, the tooth widths of the first tooth slot and the third tooth slot are equal, and the tooth widths of the third tooth slot and the fourth tooth slot are equal.