TWM639035U - Clamp Adjustment Structure - Google Patents

Abstract

The clamp adjustment structure of this creation includes a first clamper and a second clamper, the first clamper includes a first handle, a first jaw and a pull bar, the first jaw connects On the first handle, the pull rod is connected to the first handle, and the second clamp includes a second jaw, a second handle, a swing arm, a cam and a movable part, and the second jaw pivot It is arranged on the first handle, the second handle is pivotally arranged on the second jaw, the swing arm is pivotally arranged on the second handle, the cam is pivotally connected to the swing arm, the cam is provided with an abutment, and the movable part is pivotally connected to the cam. The movable part is provided with a friction hole, the check rod is inserted in the friction hole and the movable part can move, and the clamp adjustment structure can continuously clamp objects of different sizes without adjustment through the above structure.

Description

Clamp Adjustment Structure

This creation mainly discloses a clamp adjustment structure, especially a clamp adjustment structure capable of continuously clamping objects of different sizes.

Please refer to the "universal pliers with multi-function adjusting button" patent case of Chinese patent No. M449066, which is a universal pliers with multi-functional adjusting buttons, including a fixed clamp and a movable clamp pivotally connected to the fixed clamp . A locking unit arranged between the fixed clamp and the movable clamp, and an adjustment unit corresponding to the locking unit. The locking unit includes a position-limiting main body pivotally connected to the movable clamp. The adjustment unit includes a screw screwed to the fixed clamp, and an adjustment knob connected to the screw. The adjustment knob has a main operating body and an auxiliary operating body of a polygonal column. The main operating body has a surface grooves.

However, the above-mentioned universal pliers are the same as most traditional universal pliers. It is necessary to change the clamping width of the jaws by turning the screw rod, which makes it quite inconvenient for the user to continuously clamp objects of different sizes, and needs to be turned again after each operation. The screw adjusts the opening width to be able to carry out the next operation.

In view of the lack of the above-mentioned conventional structure, the creator has designed a clamp adjustment structure, which can overcome all the shortcomings of the above-mentioned conventional structure.

The main purpose of the clamp adjustment structure of this creation is to provide a clamp adjustment structure including a first clamper and a second clamper, the first clamper includes a first handle, a second A jaw and a pull rod, the first jaw is fixedly connected to one end of the first handle, the pull rod is connected to the first handle opposite to the first grip along an imaginary reference line extending axially One end of the jaw, the second gripper includes a second jaw, a second handle, a swing arm, a cam and a movable part, the second jaw is provided with a first pivot and a first Two pivots, the first pivot is pivoted on the first handle and makes the second jaw and the first jaw face each other, the second handle is pivoted on the second pivot, the swing arm One end of the cam is provided with a third pivot and the other end is provided with a fourth pivot, the third pivot is pivotally arranged on the second handle, the cam is provided with a fifth pivot and a sixth pivot, The fifth pivot is pivotally connected to the fourth pivot, the cam is provided with an abutment along the radially outer peripheral edge of the sixth pivot, the movable part is pivotally connected to the sixth pivot, and the movable part is provided with A friction hole, the pull rod is inserted in the friction hole and the movable part can move axially along the reference line, the second clamp can switch between a clamping state and a releasing state, the second clamping When the clamping device is in the clamped state, the abutting portion abuts against the restraining rod and makes the restraining rod contact the inner peripheral edge of the friction hole; when the second clamper is in the released state, the abutting portion breaks away from the restraining rod, Through the above-mentioned structure, the clamp adjustment structure can continuously clamp objects of different sizes without adjustment.

The distance between the opposite ends of the abutting portion and the rotation center of the sixth pivot forms a first radius and a second radius, the second radius is smaller than the first radius, and when the second clamper is in the clamped state, One end of the abutting portion forming the first radius abuts against the restraining rod. When the second clamper is in the released state, one end of the abutting portion forming the first radius is disengaged from the restraining rod, and the abutting portion forms the second One end of the radius is adjacent to the check rod.

The swing arm is provided with a screw hole along the tangential direction of the fourth pivot and is connected with an adjustment piece. The adjustment piece is inserted into the screw hole in a screw lock manner, and one end of the adjustment piece is against the cam. .

A screw head is provided on the end of the adjusting member opposite to the cam, and a spring is sheathed on the adjusting member. One end of the spring abuts against the swing arm and the other end abuts against the screw head.

The first clamper includes an elastic member, which is sleeved on the pull rod and is located on the side of the movable member opposite to the first jaw. One end of the elastic member is against the movable member and the other One end leans against the first handle.

The first handle is fixedly provided with a fixing ring, a stop seat and a limit sleeve, and a fixing groove is provided through the fixing ring, and the end of the pulling rod opposite to the first jaw is plugged into the fixing groove and abut against the stop seat, the limit sleeve is provided with a limit groove, the end of the pull rod adjacent to the first jaw is inserted into the limit groove, and the second clamp is clamped When switching between the release state and the release state, the pull rod can swing and displace in the limiting slot.

When the second clamper switches between the clamping state and the releasing state, the swinging of the restraining rod in the limiting groove will cause the reference line to swing, and the angle range of the reference line deflection is greater than 0 degrees and less than 7 degrees.

When the second clamper is in the clamped state, the inner peripheral edge of the friction hole adjacent to one end of the first jaw and adjacent to the first handle contacts the restraining rod, and the friction hole is opposite to the first jaw. The inner peripheral edge of one end and the side opposite to the first handle contacts the restraining rod, the inner peripheral edge of the friction hole adjacent to the end of the first jaw and the side opposite to the first handle does not contact the restraining rod, the friction hole The inner peripheral edge of the hole opposite to the end of the first jaw and adjacent to the side of the first handle does not contact the pull bar.

The cross section of the check rod along the radial direction of the reference line is hexagonal.

A first friction surface is provided on the outer peripheral edge of the pull rod along the radial direction of the reference line adjacent to the side of the first handle, and the radial outer peripheral edge of the pull rod along the reference line is opposite to the side of the first handle There are two second friction surfaces that are not adjacent to each other, the first friction surface and the two second friction surfaces respectively extend in a direction parallel to the axial direction of the reference line, when the second clamper is in the clamped state The friction hole is adjacent to one end of the first jaw and the inner peripheral edge of the side adjacent to the first handle contacts the first friction surface, and the friction hole is opposite to the end of the first jaw and opposite to the first handle. The inner peripheral edge of the side contacts the two second friction surfaces, the inner peripheral edge of the friction hole adjacent to one end of the first jaw and opposite to the first handle does not contact the two second friction surfaces, the friction hole is opposite An inner peripheral edge at one end of the first jaw and adjacent to the first handle does not contact the first friction surface.

Other objects, advantages and novelties of the invention will become more apparent from the following detailed description and associated drawings.

Regarding the technology, means and effects used in this creation, a preferred embodiment is given and described in detail below with drawings. This is for illustration only, and is not limited by this structure in patent applications.

Referring to Fig. 1 to Fig. 7, it is the three-dimensional appearance view, three-dimensional exploded view and cross-sectional structure view of the clamp adjustment structure of this invention. The clamp adjustment structure 10 of this invention includes a first clamper 20 and a second clamper 30; wherein:

The first gripper 20 includes a first handle 21, a first jaw 22 and a pull rod 23, the first jaw 22 is fixedly connected to one end of the first handle 21, the pull rod 23 Extending axially along a virtual reference line L, it is connected to an end of the first handle 21 opposite to the first jaw 22 .

The second gripper 30 includes a second jaw 31, a second handle 32, a swing arm 33, a cam 34 and a movable part 35, and the second jaw 31 is provided with a first pivot 311 and a second pivot 312, the first pivot 311 is pivoted on the first handle 21 and makes the second jaw 31 and the first jaw 22 face each other, the second handle 32 is pivoted On the second pivot portion 312, one end of the swing arm 33 is provided with a third pivot portion 331 and the other end is provided with a fourth pivot portion 332, the third pivot portion 331 is pivotally mounted on the second handle 32, The cam 34 is provided with a fifth pivot portion 341 and a sixth pivot portion 342, the fifth pivot portion 341 is pivotally connected to the fourth pivot portion 332, and the cam 34 is arranged along the radial outer peripheral edge of the sixth pivot portion 342. An abutting top 343 is provided, the movable part 35 is pivotally connected to the sixth pivot part 342, the movable part 35 is provided with a friction hole 351, the check rod 23 is inserted in the friction hole 351 and the movable part 35 can Moving axially along the reference line L, the second clamper 30 can switch between a clamped state and a released state. When the second clamper 30 is in the clamped state, the abutting portion 343 abuts against the restraining The rod 23 makes the restraining rod 23 contact the inner peripheral edge of the friction hole 351 , and when the second clamper 30 is in the release state, the abutting portion 343 is separated from the restraining rod 23 .

The distance between the opposite ends of the abutting portion 343 and the rotation center of the sixth pivot portion 342 forms a first radius R1 and a second radius R2, the second radius R2 is smaller than the first radius R1, and the second clamper 30 In the clamped state, one end of the abutting portion 343 forming the first radius R1 abuts against the pull rod 23 , and when the second clamper 30 is in the released state, the abutting portion 343 forms an end of the first radius R1 One end is separated from the restraining rod 23 , and one end of the abutting portion 343 forming the second radius R2 is close to the restraining rod 23 .

The swing arm 33 is provided with a screw hole 333 along the tangential direction of the fourth pivot portion 332 and is connected with an adjustment piece 334 , the adjustment piece 334 is screwed into the screw hole 333 , and the adjustment piece 334 One end abuts against the cam 34 .

The adjusting member 334 is provided with a screw head 335 at the end opposite to the cam 34, and the adjusting member 334 is sleeved with a spring 336. One end of the spring 336 abuts against the swing arm 33 and the other end abuts against the screw head. 335.

The first clamper 20 includes an elastic member 24 sleeved on the restraining rod 23 and located on the side of the movable member 35 opposite to the first jaw 22 . One end of the elastic member 24 abuts against lean against the movable part 35 and the other end leans against the first handle 21 .

The first handle 21 is fixedly provided with a fixing ring 211, a stop seat 212 and a limit sleeve 213, and a fixing groove 214 is provided through the fixing ring 211, and the restraining rod 23 is opposite to the first jaw One end of 22 is plugged into the fixing groove 214 and abuts against the stop seat 212, the limiting sleeve 213 is provided with a limiting groove 215, and one end of the restraining rod 23 adjacent to the first jaw 22 is inserted into the The limiting groove 215 , when the second clamper 30 is switched between the clamping state and the releasing state, the restraining rod 23 can swing and displace in the limiting groove 215 .

When the second clamper 30 is switched between the clamped state and the released state, the swing of the restraining rod 23 in the limiting groove 215 will cause the reference line L to sway, and the sway angle of the reference line L is The range is greater than 0 degrees and less than 7 degrees.

When the second holder 30 is in the clamped state, the inner peripheral edge of the friction hole 351 adjacent to the end of the first jaw 22 and the side adjacent to the first handle 21 contacts the restraining rod 23, and the friction hole 351 is opposite. The inner peripheral edge of one end of the first jaw 22 and opposite to the first handle 21 contacts the restraining rod 23 , and the friction hole 351 is adjacent to one end of the first jaw 22 and opposite to the first handle 21 . The inner peripheral edge of the side does not contact the restraining rod 23 , and the inner peripheral edge of the friction hole 351 opposite to the end of the first jaw 22 and adjacent to the first handle 21 does not contact the restraining rod 23 .

The radial section of the check rod 23 along the reference line L is hexagonal.

A first friction surface 231 is provided on the outer peripheral edge of the restraining rod 23 along the radial direction of the reference line L adjacent to the first handle 21, and the outer peripheral edge of the restraining rod 23 along the radial direction of the reference line L is opposite to the first handle 21. One side of the handle 21 is provided with two second friction surfaces 232 that are not adjacent to each other. The first friction surface 231 and the two second friction surfaces 232 respectively extend along a direction parallel to the axis of the reference line L. When the second holder 30 is in the clamping state, the inner peripheral edge of the friction hole 351 adjacent to the end of the first jaw 22 and the side adjacent to the first handle 21 contacts the first friction surface 231, and the friction hole 351 The inner peripheral edge of the side opposite to the first jaw 22 and opposite to the first handle 21 contacts the two second friction surfaces 232 , and the friction hole 351 is adjacent to the first jaw 22 and opposite to the first handle 21 . The inner peripheral edge of one side of the handle 21 does not contact the two second friction surfaces 232, and the inner peripheral edge of the friction hole 351 opposite to the end of the first jaw 22 and adjacent to the first handle 21 does not contact the second friction hole 351. A friction surface 231 .

The clamp adjustment structure 10 can continuously clamp articles of different sizes without adjustment through the above-mentioned structure. The part 35 will move to different positions due to the different sizes of the items clamped by the tongs, so it can clamp items of different sizes without adjustment. When the second clamper 30 switches to the clamping state, the The cam 34 can squeeze the restraining rod 23, so that the movable part 35 contacts with the restraining rod 23 and generates frictional force, and the relative position of the movable part 35 and the restraining rod 23 is limited by the above-mentioned frictional force, thereby locking the clamp Adjust the jaw width of the structure 10.

From the above, it can be concluded that this creation has the following advantages:

1. To create a clamp adjustment structure for this invention, wherein the wrench includes a first gripper and a second gripper, and the first gripper includes a first handle, a first jaw and a restraint rod, the first jaw is fixedly connected to one end of the first handle, and the restraining rod is axially extended along a virtual reference line and connected to the end of the first handle opposite to the first jaw, the first The second gripper includes a second jaw, a second handle, a swing arm, a cam and a movable part, the second jaw is provided with a first pivot and a second pivot, the first A pivot is pivotally arranged on the first handle and makes the second jaw and the first jaw face each other, the second handle is pivotally arranged on the second pivot, and one end of the swing arm is provided with a first There are three pivots and the other end is provided with a fourth pivot, the third pivot is pivoted on the second handle, the cam is provided with a fifth pivot and a sixth pivot, the fifth pivot is pivoted Connected to the fourth pivot, the cam is provided with an abutment along the radially outer peripheral edge of the sixth pivot, the movable part is pivotally connected to the sixth pivot, the movable part is provided with a friction hole, and the restraining The rod is inserted in the friction hole and the movable part can move axially along the reference line, the second clamper can switch between a clamped state and a released state, and the second clamper is in the clamped state When the abutting portion abuts against the restraining rod and makes the restraining rod contact with the inner peripheral edge of the friction hole, when the second clamper is in the release state, the abutting portion breaks away from the restraining rod, and the clamp adjustment structure passes through The above structure can continuously clamp objects of different sizes without adjustment.

However, the above is only a preferred embodiment of this creation, and should not be used to limit the scope of implementation of this creation, so all changes in numerical values or replacement of equivalent components, or equality made in accordance with the patent scope of this creation Changes and modifications should still belong to the category covered by the patent for the present invention.

10: Clamp adjustment structure 20: First gripper 21: First handle 211: fixed ring 212: stop seat 213: Limit sleeve 214: fixed slot 215: limit slot 22: First Jaw 23: Check rod 231: The first friction surface 232: Second friction surface 24: Elastic parts 30:Second gripper 31: The second jaw 311: First Pivot 312: The Second Pivot 32:Second handle 33: arm swing 331: The third hub 332: The Fourth Pivot 333: screw hole 334: Adjustment parts 335: screw head 336: spring 34: cam 341: The Fifth Pivot 342: Sixth Division 343: reach the top 35: Movable parts 351: friction hole L: baseline R1: first radius R2: second radius

Figure 1: The three-dimensional appearance diagram of the clamp adjustment structure of this creation. Figure 2: A three-dimensional exploded view of the clamp adjustment structure of this creation. Figure 3: The cross-sectional structure diagram of the second clamper in the clamping state of the clamp adjustment structure of this invention. Figure 4: It is a cross-sectional structure diagram taken along line A-A in Figure 3. Figure 5: It is a cross-sectional structure diagram taken along line B-B in Figure 3. Figure 6: The cross-sectional structure diagram of the second clamper in the clamping state of the clamp adjustment structure of this creation, the difference compared with Figure 3 lies in the position of the adjustment part. Figure 7: A cross-sectional structure diagram of the second clamper in the release state of the clamp adjustment structure of this invention.

10: Clamp adjustment structure

20: First gripper

21: First handle

22: First Jaw

30:Second gripper

31: The second jaw

32:Second handle

33: arm swing

Claims (10)

A clamp adjustment structure, which includes: A first gripper, the first gripper includes a first handle, a first jaw and a pull bar, the first jaw is fixedly connected to one end of the first handle, the pull bar axially extending along an imaginary reference line and connected to an end of the first handle opposite to the first jaw; A second gripper, the second gripper includes a second jaw, a second handle, a swing arm, a cam and a movable part, the second jaw is provided with a first pivot and a second pivot, the first pivot is pivotally mounted on the first handle so that the second jaw and the first jaw face each other, the second handle is pivotally mounted on the second pivot, One end of the swing arm is provided with a third pivot and the other end is provided with a fourth pivot, the third pivot is pivotally arranged on the second handle, and the cam is provided with a fifth pivot and a sixth pivot. pivot, the fifth pivot is pivotally connected to the fourth pivot, the cam is provided with an abutment along the radially outer peripheral edge of the sixth pivot, the movable piece is pivotally connected to the sixth pivot, the movable The member is provided with a friction hole, the pull rod is inserted into the friction hole and the movable member can move axially along the reference line, the second clamper can switch between the clamped state and the released state, the first When the second clamper is in the clamped state, the abutting portion abuts against the restraining rod and makes the restraining rod contact the inner peripheral edge of the friction hole; when the second clamper is in the released state, the abutting portion breaks away from the Pull bar. The clamp adjustment structure as described in claim 1, wherein the distance between the opposite ends of the abutting portion and the rotation center of the sixth pivot forms a first radius and a second radius, and the second radius is smaller than the first radius, When the second clamper is in the clamped state, one end of the abutting portion forming the first radius abuts against the pull rod, and when the second clamper is in the released state, the abutting portion forms an end of the first radius One end is separated from the restraint rod, and the end of the abutment forming the second radius is close to the restraint rod. The clamp adjustment structure as described in Claim 1, wherein the swing arm is provided with a screw hole along the tangential direction of the fourth pivot and is connected with an adjustment member, and the adjustment member is inserted into the screw in a screw-locking manner. hole, and one end of the adjusting member is against the cam. The clamp adjustment structure as described in claim 3, wherein the end of the adjustment member opposite to the cam is provided with a screw head, the adjustment member is covered with a spring, one end of the spring is against the swing arm and the other end is against the screw head. The clamp adjustment structure according to claim 1, wherein the first clamper includes an elastic member, the elastic member is sleeved on the pull rod and is located on the side of the movable member opposite to the first jaw, One end of the elastic member abuts against the movable member and the other end abuts against the first handle. The clamp adjustment structure as described in Claim 1, wherein the first handle is fixedly provided with a fixed ring, a stop seat and a limit sleeve, a fixed groove is provided through the fixed ring, and the restraining rod is opposite One end of the first jaw is inserted into the fixing groove and abuts against the stop seat, the limiting sleeve is provided with a limiting groove, and the end of the restraining rod adjacent to the first jaw is inserted into the limiting When the second clamper is switched between the clamping state and the releasing state, the pulling rod can swing and displace in the limiting groove. The clamp adjustment structure according to claim 1, wherein when the second clamper is switched between the clamped state and the released state, the reference line will be deflected by the swing of the pull rod in the limiting groove , the deflection angle range of the reference line is greater than 0 degrees and less than 7 degrees. The clamp adjustment structure as described in claim 1, wherein when the second clamper is in the clamped state, the inner peripheral edge of the friction hole adjacent to one end of the first jaw and adjacent to the first handle contacts the The pull rod, the inner periphery of the friction hole opposite to the end of the first jaw and opposite to the first handle contacts the pull rod, the friction hole is adjacent to the end of the first jaw and opposite to the first handle The inner peripheral edge of one side does not contact the restraining rod, and the inner peripheral edge of the friction hole opposite to the end of the first jaw and adjacent to the first handle does not contact the restraining rod. The clamp adjustment structure according to claim 8, wherein the cross-section of the restraining rod along the radial direction of the reference line is hexagonal. The clamp adjustment structure as described in Claim 9, wherein a first friction surface is provided on the outer peripheral edge of the pull rod along the radial direction of the reference line adjacent to the first handle side, and the pull rod is radially along the reference line Two second friction surfaces that are not adjacent to each other are provided on the outer peripheral edge of the opposite side of the first handle, and the first friction surface and the two second friction surfaces respectively extend in a direction parallel to the axial direction of the reference line , when the second holder is in the clamped state, the inner peripheral edge of the friction hole adjacent to one end of the first jaw and adjacent to the first handle contacts the first friction surface, and the friction hole is opposite to the first The inner periphery of one end of a jaw and opposite to the first handle contacts the two second friction surfaces, and the friction hole is adjacent to the inner periphery of one end of the first jaw and opposite to the first handle. In contact with the two second friction surfaces, the inner peripheral edge of the friction hole opposite to the end of the first jaw and adjacent to the first handle does not contact the first friction surface.

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