TWI734561B - Clamp with adjustable angle - Google Patents

Abstract

A clamp with adjustable operation angle includes a grip portion, a clamp portion, and an angle adjustment device. The grip portion includes a first handle and a second handle. The clamp portion is pivotally disposed on the grip portion and includes a first jaw and a second jaw. The angle adjustment device is disposed between the grip portion and the clamp portion. The angle adjustment device optionally refrains the clamp portion from rotation with respect to the grip portion, or allows the first jaw and the second jaw to pivot with respect to the grip portion for adjusting the angle.

Description

Angle adjustable clamp

The invention relates to a clamp, in particular to a clamp with an adjustable angle.

For example, Taiwan Patent No. M261338, which discloses an improved structure of tube bundle clamp, mainly includes two hinged jaws, and each jaw has a working section and an operating section. By applying force to the operating section, In order to make the two working sections move together in order to carry out various clamping operations.

However, the aforementioned tube bundle clamp is the same as the traditional clamp. The angle between the working section and the operating section is fixed. Therefore, it will not be able to provide convenient operation and use in a specific working environment or specific demand operation. Others must be used. Angled clamps, therefore, when facing various tasks, workers must prepare clamps with multiple angles to deal with it, which increases the purchase cost and is inconvenient to carry.

In order to solve the above-mentioned problems, the present invention discloses an adjustable angle clamp, which operates an angle adjustment device located between the clamping part and the gripping part, so that the clamping part can produce a pivoting action relative to the grip part to adjust the angle. To meet the needs of the job.

To achieve the above objective, an embodiment of the present invention provides an angle-adjustable clamp, which includes a gripping portion, a clamping portion, and an angle adjusting device. The grip has a first grip and A second grip; the gripping part is pivoted on the gripping part and has a first jaw and a second jaw; the angle adjusting device is arranged between the gripping part and the gripping part along an axis, the angle The adjustment device includes an operating element, a first limiting element and a second limiting element. The operating element can be moved back and forth between a latching position and a disengaging position along the axis, so that the first limiting element and the second limiting element The two limiting members selectively lock the clamping portion. When in the clamping position, the first limiting member and the second limiting member are locked on the clamping portion to restrict the clamping portion from rotating relative to the holding portion. In the disengaged position, the first jaw and the second jaw can pivot relative to the gripping part to adjust the angle about the axis.

In this way, the present invention presses the manipulating element to move the first limiting element and the second limiting element in the axial direction, so that the first limiting element and the second limiting element are no longer caught in the first jaw The clamp and the second jaw allow the clamping part to pivot at an angle relative to the holding part, so that the first jaw and the second jaw can be adjusted to a predetermined working angle to meet the requirements of the operation.

100: clamp

1: Grip

2: Clamping part

3: Angle adjustment device

4: positioning device

X: axis

10: The first grip

11: The first pivot

12: The first perforation

13: Hook

20: second grip

21: The second pivot

22: second perforation

23: The second concession slot

30: The first jaw

31: Third pivot

32: third perforation

33: The first concession slot

34: positioning tooth

35: The first clamp

40: second jaw

41: The fourth pivot

42: The fourth perforation

43: The second clamp

50: Controls

51: External thread

60: The first limit piece

61: first ring tooth

62: second ring tooth

63: Groove

64: set hole

70: The second limit piece

71: third ring tooth

72: Shaft tube

73: Internal thread

74: stop ring

75: positioning hole

80: Spacer ring

90: Keep the element

91: cover

911: accommodating slot

912: convex column

92: fixed ring

401: positioning parts

402: Pivot

403: Torsion Spring

404: Card tooth

405: Flip part

[Fig. 1] is a schematic diagram of the appearance of the angle-adjustable clamp of the present invention, showing that the clamping part is in an unfolded state.

[Fig. 2] is another schematic diagram of the external appearance of the adjustable angle clamp of the present invention, showing that the clamping part is in a closed state.

[Fig. 3] is an exploded schematic diagram of the clamp structure with adjustable angle of the present invention.

[Fig. 4] is a schematic cross-sectional view of the angle adjustment device of the angle-adjustable clamp of the present invention, showing that the operating member is in the latching position.

[Fig. 5] is a schematic cross-sectional view of the angle adjustment device of the adjustable angle clamp of the present invention, showing that the manipulating member is located at the release position after being pressed.

[Figure 6] is a schematic diagram of the angle adjustment action of the angle-adjustable clamp of the present invention, showing that the first jaw and the second jaw pivot about 90 degrees with respect to the first grip and the second grip.

The exemplary embodiments of the present invention are described in detail below with reference to the drawings, and are not intended to limit the technical principles of the present invention to specific disclosed embodiments, and the scope of the present invention is only limited by the scope of the patent application, covering alternatives, modifications and Equivalent.

Please refer to FIG. 1 to FIG. 6, the present invention is an angle-adjustable pliers 100, which includes a holding portion 1, a clamping portion 2 and an angle adjusting device 3.

The holding part 1 has a first holding handle 10 and a second holding handle 20. The first handle 10 has a first pivotal portion 11 and a first perforation 12 at one end, and a hook 13 is provided at a position away from the first perforation 12. The shape of the second handle 20 is substantially similar to that of the first handle 10. It has a second pivotal portion 21 and a second perforation 22 at one end, wherein the second perforation 22 is coaxially connected with a second relief groove. twenty three.

The clamping portion 2 is pivoted to the holding portion 1 and has a first jaw 30 and a second jaw 40. By operating the gripping portion 1, the first jaw 30 and the second jaw 40 can be opened and closed for clamping operations. The first jaw 30 has a third pivotal portion 31 and a third tooth hole 32 at one end, and the third tooth hole 32 is coaxially connected with a first relief groove 33. In addition, the first jaw 30 is provided with a positioning tooth 34 on the side of the third tooth hole 32, and the first jaw 30 is away from the third pivotal portion 31 and has a first jaw portion 35. The positioning tooth 34 is pivotally connected to the third The outer side of the part 31 is slightly distributed in a quarter circle. The shape of the second jaw 40 is substantially similar to that of the first jaw 30. It has a fourth pivot portion 41 and a fourth perforation 42 at one end, and a second jaw is provided at one end away from the fourth perforation 42 The part 43 and the first pliers part 35 face to face. Set. In the embodiment of the present invention, the third pivot portion 31 and the fourth pivot portion 41 are provided between the first pivot portion 11 and the second pivot portion 21, and the third pivot portion 31 is provided on the first pivot portion. Between the connecting portion 11 and the fourth pivoting portion 41.

The angle adjusting device 3 is arranged between the gripping portion 1 and the clamping portion 2 along an axis X, which is the operation center of the clamp 100. The angle adjusting device 3 includes an operating member 50, a first limiting member 60, and a second limiting member 70. The operating member 50 can be moved back and forth between a latching position and a disengaging position along the axis X, so as to The first limiting member 60 and the second limiting member 70 selectively lock the clamping portion 2, wherein when in the clamping position, the first limiting member 60 and the second limiting member 70 are locked on the clamping portion 2 , The clamping part 2 is restricted from rotating relative to the holding part 1. This position is the angular position for normal use, as shown in FIG. 1. In the disengaged position, the first jaw 30 and the second jaw 40 can pivot relative to the grip 1 about the axis X to adjust the angle, as shown in FIG. 6, so that the worker can adjust to a predetermined working angle , In order to facilitate the operation.

In the embodiment of the present invention, one end of the manipulation member 50 has an external thread 51. The first limiting member 60 is disposed between the operating member 50 and the second limiting member 70. Both ends of the first limiting member 60 are respectively provided with a first ring tooth 61 and a second ring tooth 62. The first ring tooth A recess 63 is provided between the second ring tooth 61 and the second ring tooth 62 so that the two are arranged at intervals, and the first limiting member 60 further has a sleeve hole 64 arranged in the axial direction, wherein the first ring tooth The length of the second ring tooth 61 and the second ring tooth 62 in the axis X direction is substantially the same. The second limiting member 70 has a third ring tooth 71, and the length of the third ring tooth 71 in the axis X direction is greater than the length of the first ring tooth 61 and the second ring tooth 62 in the axis X direction. A shaft tube 72 extends from one side of the third ring tooth 71. The shaft tube 72 has an internal thread 73 for screw connection with the external thread 51, so that the operating member 50 is axially connected to the second limiting member 70, and the first limiting The piece 60 is sleeved on the periphery of the shaft tube 72. In addition, the third ring tooth 71 A stop ring 74 is provided on the other side, the outer diameter of which is larger than the third ring tooth 71, and the stop ring 74 is recessed with a positioning hole 75.

In another embodiment of the present invention, a spacer ring 80 is provided between the first limiting member 60 and the second limiting member 70. The spacer ring 80 is sleeved on the shaft tube 72 and located between the second ring tooth 62 and the third ring tooth 62. Between ring teeth 71.

In another embodiment of the present invention, the angle adjusting device 3 further includes a holding element 90, a blocking cover 91 and a fixing ring 92. The holding element 90 is a compression spring, which normally urges the operating member 50 to be held in the latching position. The blocking cover 91 is fixed to a side of the second pivotal portion 21 of the second handle 20 that is different from the fourth pivotal portion 41. The blocking cover 91 has an accommodating groove 911 and a center of the accommodating groove 911. According to this, one end of the holding element 90 extends into the positioning hole 75 and abuts against the second limiting member 70, and the other end is disposed in the receiving groove 911 and the protrusion 912 to abut against the blocking cover 91, and In the latching position, the holding element 90 provides the holding force so that the stop ring 74 of the second limiting member 70 is located in the second relief groove 23, and bears against the inner side wall of the second relief groove 23, so that the second The limiting member 70 will not fall out of the second relief groove 23. The fixing ring 92 is fixed on the side of the first handle 10, and the manipulating element 50 extends through the fixing ring 92, and in the latching position, the manipulating element 50 does not protrude from the outer surface of the fixing ring 92, so as to make the appearance better. smooth.

In another embodiment, the present invention further includes a positioning device 4 for keeping the first jaw 30 and the second jaw 40 in the closed state normally. The positioning device 4 includes a positioning member 401, a pivot 402, and a torsion spring 403. The pivot 402 pivots the positioning member 401 and the torsion spring 403 on the second handle 20. One end of the positioning member 401 has a toothed portion 404. The other end has a flip part 405. The tooth part 404 is engaged and fixed to the positioning tooth 34. One end of the torsion spring 403 is positioned on the positioning member 401 and away from the pivot 402, and the other end is positioned on the hook 13 of the first handle 10. . As shown in FIG. 2, the first jaw 30 and the second jaw 40 are kept in a closed state, which is a storage type, and when used for work, the lever is operated with a force The moving part 405 causes the positioning member 401 to pivot relative to the second handle 20, so that the clamping tooth part 404 is separated from the positioning tooth 34, thereby prompting the first jaw 30 and the second jaw 40 to open relatively quickly. When removed, due to the action of the torsion spring 403, the clamping tooth portion 404 is clamped to the positioning tooth 34 again, so that the first jaw 30 and the second jaw 40 are maintained in a predetermined relative position (open state). Therefore, during the clamping operation, the relative position of the first jaw 30 and the second jaw 40 can be maintained by the clamping position of the tooth portion 404 and the positioning tooth 34, which is convenient for operation and use.

As shown in FIGS. 3 and 4, when the present invention is in the latching position, the angle adjusting device 3 is supported by the holding element 90, so that the operating member 50 can be positioned at the latching position. At this time, the first limiting member 60 The first ring tooth 61 is engaged with the first tooth hole 12 of the first grip 10, the second ring tooth 62 of the first limiting member 60 is engaged with the third tooth hole 32 of the first jaw 30, and the second limit The third ring tooth 71 of the positioning member 70 is engaged with the second tooth hole 22 and the fourth tooth hole 42. As a result, the first jaw 30 and the second jaw 40 are connected to the first grip 10 and the second grip respectively. 20 forms a positioning state, and cannot form an angle adjustment position.

As shown in FIGS. 3 and 5, when the manipulating element 50 of the present invention is pressed and moved from the latching position to the disengaging position, the manipulating element 50 sinks in the direction of the arrow in FIG. 5, so that the manipulating element 50 moves The first limiting member 60 disengages the second ring tooth 62 of the first limiting member 60 from the third tooth hole 32, and allows the second ring tooth 62 to retreat to the first relief groove 33, so that the first jaw 30 is no longer Being blocked by the first limiting member 60, at the same time, the first limiting member 60 pushes the spacer ring 80 as the operating member 50 sinks, so that the spacer ring 80 is pushed against the second limiting member 70 to sink it, so that The third ring tooth 71 of the second limiting member 70 can be separated from the fourth tooth hole 42 and partially retreated to the second relief groove 23, so that the second jaw 40 is no longer caught by the second limiting member 70, Thereby, the first jaw 30 and the second jaw 40 can pivot relative to the first grip 10 and the second grip 20 with the axis X, and then adjust to a relative 90 degree angle position, as shown in FIG. 6 , In order to provide convenient operations in specific operations.

As mentioned above, the present invention has simple structure and convenient operation. In particular, the angle adjusting device 3 is provided at the pivotal joint of the gripping portion 1 and the clamping portion 2, so that the shape of the clamp 100 is simple and not abrupt, and when adjusting the angle, It is only necessary to press the operating member 50 to make the sinking displacement, and the clamping part 2 can be quickly adjusted to the required angular position relative to the holding part 1, which is convenient for operation and use.

Although the present invention is described in a preferred embodiment, those skilled in the art can make various changes in various forms without departing from the spirit and scope of the present invention. The above-mentioned embodiments are only used to illustrate the present invention, and are not used to limit the scope of the present invention. All modifications or changes made without violating the spirit of the present invention belong to the scope of the patent application of the present invention.

4: positioning device

X: axis

10: The first grip

11: The first pivot

12: The first perforation

13: Hook

20: second grip

21: The second pivot

22: second perforation

23: The second concession slot

30: The first jaw

31: Third pivot

32: third perforation

33: The first concession slot

34: positioning tooth

35: The first clamp

40: second jaw

41: The fourth pivot

42: The fourth perforation

43: The second clamp

50: Controls

51: External thread

60: The first limit piece

61: first ring tooth

62: second ring tooth

63: Groove

64: set hole

70: The second limit piece

71: third ring tooth

72: Shaft tube

73: Internal thread

74: stop ring

75: positioning hole

80: Spacer ring

90: Keep the element

91: cover

911: accommodating slot

912: convex column

92: fixed ring

401: positioning parts

402: Pivot

403: Torsion Spring

404: Card tooth

405: Flip part

Claims (8)

An angle-adjustable pliers, comprising a holding part, a holding part and an angle adjusting device: the holding part has a first handle and a second handle, and the first handle has A first pivot portion, the second handle has a second pivot portion, the first pivot portion has a first perforation, the second pivot portion has a second perforation; the clamping portion , It is pivoted on the holding portion and has a first jaw and a second jaw, the first jaw clamp has a third pivotal portion, the second jaw clamp has a fourth pivotal portion, the The third pivot portion and the fourth pivot portion are provided between the first pivot portion and the second pivot portion, and the third pivot portion is provided between the first pivot portion and the fourth pivot Between the connecting parts, the first jaw clamp has a third perforation, and the second jaw clamp has a fourth perforation; and the angle adjusting device is arranged along an axis between the holding part and the clamp Between the holding parts, the angle adjusting device includes an operating member, a first limiting member and a second limiting member. The operating member is axially connected to the second limiting member, and the first limiting member is disposed at Between the operating member and the second limiting member, the first limiting member has a first ring tooth and a second ring tooth, the second limiting member has a third ring tooth, and the operating member can move along The shaft center is moved back and forth between a detent position and a detent position, so that the first limiting member and the second limiting member selectively lock the clamping portion, wherein at the detent position, The first ring tooth meshes with the first tooth hole, the second ring tooth meshes with the third tooth hole, and the third ring tooth meshes with the second tooth hole and the fourth tooth hole, so that the first limit The positioning member and the second limiting member are latched on the clamping portion to restrict the clamping portion from rotating relative to the holding portion; when the operating member is pressed and moves from the latching position to the disengaging position, The second ring tooth is separated from the third tooth hole, and the third ring tooth is separated from the fourth tooth hole, so that the first jaw and the second jaw can be opposed to the first grip and the first jaw with the shaft center. The second grip produces a pivot, the first The jaw and the second jaw can pivot with respect to the gripping portion with the axis to adjust the angle. The angle-adjustable clamp of claim 1, wherein the first jaw is coaxially connected with the third perforation to provide a first relief groove, and the second grip is coaxially connected with the second perforation to provide a A second relief groove, so that when in the release position, the second ring tooth is retreated to the first relief groove, and the third ring tooth is partially retreated to the second relief groove. The angle-adjustable clamp according to claim 2, wherein the operating member has an external thread, the second limiting member has a shaft tube, the shaft tube has an internal thread and the external thread is screwed together, and the first The limiting member is sleeved on the periphery of the shaft tube; a concave groove is formed between the first ring tooth and the second ring tooth, so that the two are arranged at intervals. The angle-adjustable clamp according to claim 3, wherein a spacer ring is provided between the first limiting member and the second limiting member, and the spacer ring is sleeved on the shaft tube and located at the second Between the ring tooth and the third ring tooth. The angle-adjustable clamp according to claim 1 or 2, wherein the angle adjusting device further includes a holding element, which normally urges the operating member to be held at the latching position. The angle-adjustable clamp according to claim 5, wherein the angle adjusting device further includes a blocking cover fastened to one side of the second handle, the holding element is a compression spring, and one end abuts against the The other end of the second limiting member abuts against the blocking cover. The angle-adjustable clamp described in claim 5 further includes a positioning device for keeping the first jaw and the second jaw in the closed state normally. The angle-adjustable clamp of claim 5, wherein the positioning device includes a positioning member, a pivot and a torsion spring, and the pivot pivots the positioning member and the torsion spring on the second handle , The positioning member has a tooth portion at one end and a toggle portion at the other end, and one end of the first jaw There is a positioning tooth for the clamping tooth part to bite and fasten, one end of the torsion spring is positioned on the positioning member and away from the pivot, and the other end is positioned on the first handle.

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