TW201603966A - Clamping device capable of rapidly adjusting clamping force - Google Patents

Abstract

The present invention provides a clamping device capable of rapidly adjusting clamping force, comprising a first clamp and a second clamp. The first clamp comprises a first handle and a first clamping jaw, which are fixedly connected with each other. The first handle is provided with a sliding section and an adjusting member. One end of the adjusting member is axially screwed to the first handle along a virtual rotation axis and extends to the sliding section. The adjusting member is provided with an operating part at the end away from the first handle, and the lateral width of the operating part is smaller than that of the sliding section. The operating part of the adjusting member is provided with a through hole, which penetrates through two sides of the operating part of the adjusting member. The second clamp is connected to the first clamp, and the second clamp also comprises a resisting member. One end of the resisting member is coupled in a sliding way to the sliding section of the first handle and abuts against the adjusting member. By the insertion of an operating rod into the adjusting member, rotation with bare hands can be accomplished, and the size is not too large.

Description

Quickly adjust the holding device of the clamping force

The invention mainly discloses a clamping device, in particular a clamping device for quickly adjusting a clamping force.

Please refer to the "Modified Universal Pliers" patent of China Patent Publication No. 239357, which is an improved universal pliers that forms a long and wide bump at the jaws, and a tooth profile formed on the inside of the bump. It is arranged to be inclined toward one side, and the other is inclined to the other side. When the two kinds of metal tubes with different inclination directions are clamped, it has better and is not easy to loosen. The clamping effect is provided; another sleeve is provided on the side of the rear grip with a screw hole therein, so that the bolt is screwed into the sleeve, and the sleeve has an appropriate reinforcing effect to prevent the rear grip from being deformed and can be The bolt rotates inside the sleeve.

However, the universal tongs are used to adjust the tightness of the jaws by rotating the bolts, and must be adjusted before the universal tongs hold the metal round tubes. If the universal tongs hold the metal round tubes, the front tongs are pushed against each other. The front grip pushes the connecting rod to push the bolt to the top, so that the user can no longer turn the bolt to adjust the tightness of the jaw by hand. To adjust the tightness, the universal clamp must be released and the metal round tube is clamped after adjusting the bolt, which is quite troublesome. .

Furthermore, since the bolt head of the universal clamp bolt has a large volume, it is easy to be caught in other objects or interfere with the movement of the user's hand during use, resulting in inconvenience in use.

In view of the above-described deficiencies in the conventional structure, the inventors have invented a holding device for quickly adjusting the gripping force, which overcomes all of the disadvantages of the above-described conventional structure.

The main purpose of the present invention is to provide a clamping device comprising a first holder and a second holder, the first holder comprising a first handle And a first clamping frame, the first handle is provided with a connecting end and a holding end away from the connecting end, the first grip has a sliding section between the connecting end and the holding end, and the sliding section is adjacent to the first a holding end of the handle, the first clamping jaw has a front end and a rear end away from the front end, the rear end of the first clamping jaw is fixedly connected to the connecting end of the first grip, the first clip is at the front end and the rear end There is a clamping portion, the first handle has an adjusting member, and one end of the adjusting member is axially disposed on the holding end of the first grip and extends to the sliding portion along a virtual rotating shaft, and the adjusting member rotates. The end of the adjusting member that is away from the first grip holding end is provided with an operating portion, and the outer circumference of the first grip sliding portion forms a maximum width along the radial direction of the virtual rotating shaft. The first width, the outer circumference of the operating part of the adjusting member is along the virtual The maximum width of the rotating shaft in the radial direction forms a second width, and the length of the second width is smaller than the length of the first width. The operating portion of the adjusting member is provided with a through hole penetrating through the two sides of the adjusting portion of the adjusting member, and the second clip The holder is connected to the first holder, the second holder comprises a second handle and a second clamp, the second handle is provided with a connection end and a holding end away from the connection end, the second clamp The cymbal has a front end and a rear end away from the front end. The rear end of the second clamp is pivoted to the connection end of the first gripper near the first gripper, and the rear end of the second clamp is away from the first clamp. One side of the holder is pivotally connected to the connecting end of the second grip, and the second clip is provided with a clamping portion between the front end and the rear end, and the clamping portion of the second clamping jaw and the clamping of the first clamping jaw The second holder further includes a top member and an elastic member. One end of the top member is pivotally disposed between the two ends of the second handle, and the top member is away from the end of the second handle. a sliding portion disposed on the sliding portion of the first handle and abutting against the adjusting member, one end of the elastic member is connected to The elastic member simultaneously provides tension between the second clamp and the first grip between the two ends of the first grip and the other end of the first grip, and the design of the operating rod can be inserted through the through hole of the adjusting member. The clamping device can still rotate the adjusting member freely at any time while the workpiece is being clamped, and the clamping device does not have a large volume by the structure in which the length of the second width is smaller than the length of the first width. .

Other objects, advantages and novel features of the invention will become apparent from the description and appended claims.

The technology, means and functions of the present invention are described in detail with reference to the accompanying drawings.

Referring to Fig. 1, a perspective view and an exploded perspective view of a clamping device for quickly adjusting a clamping force of the present invention are shown. The clamping device 10 of the present invention includes a first holder 20 and a second holder 30; wherein:

Please refer to FIG. 2 to FIG. 5 , which are an exploded perspective view, a cross-sectional structural view, a top view and a side view of the adjusting member of the clamping device for quickly adjusting the clamping force. The first holder 20 includes a first handle 21 and a first clamping frame 22. The first handle 21 is provided with a connecting end 211 and a holding end 212 away from the connecting end 211. A handle 21 has a sliding section 213 between the connecting end 211 and the holding end 212. The sliding section 213 is adjacent to the holding end 212 of the first handle 21.

The first handle 21 further has an adjusting member 214. One end of the adjusting member 214 is axially disposed on the holding end 212 of the first handle 21 and extends to the sliding portion 213 along a virtual axis of rotation C. The adjusting member 214 is selectively rotatable and synchronously movable with respect to the first grip 21, and the adjusting member 214 can be moved closer to or away from the connecting end 211 of the first grip 213 when rotated. An end of the adjusting member 214 away from the grip end 212 of the first grip 21 is provided with an operating portion 215. The operating portion 215 is in the shape of a round rod in the embodiment, and the outer periphery of the sliding portion 213 of the first grip 21 is a maximum width in the radial direction of the virtual rotation axis C forms a first width W1, and a maximum width of the outer circumference of the adjustment member 214 of the operation portion 215 along the radial direction of the virtual rotation axis C forms a second width W2, the second The length of the width W2 is smaller than the length of the first width W1, and the length of the second width W2 is not less than 0.9 times the length of the first width W1 in the present embodiment.

The length of the operating portion 215 of the adjusting member 214 along the axial direction of the virtual rotating shaft C forms a convex elongation L, and the length of the convex elongation L is not less than one-half of the length of the second width W2, the convex elongation The length of the degree L is between 0.5 and 1 times the length of the second width W2 in this embodiment.

The operating portion 215 of the adjusting member 214 is provided with a through hole 216 which penetrates both sides of the operating portion 215 of the adjusting member 214 in the axial direction of a virtual through shaft O. The virtual through shaft O and the virtual rotating shaft C is perpendicular to each other. The maximum width of the through hole 216 along the radial direction of the virtual through-axis O forms a third width W3, and the length of the third width W3 is less than one-half of the length of the second width W2, and the length of the third width W3 In the present embodiment, it is between 0.3 and 0.5 times the length of the second width W2. The through hole 216 of the adjusting member 214 can selectively insert an operating rod 217 (shown in FIG. 6), and the operating rod 217 extends in the axial direction of the virtual through shaft O.

The first clip 22 has a front end 221 and a rear end 222 away from the front end 221 . The rear end 222 of the first clip 22 is fixedly connected to the connecting end 211 of the first grip 21 . A clamping portion 223 is disposed between the front end 221 and the rear end 222. The clamping portion 223 of the first clamping frame 22 has a zigzag shape. The front end 221 and the rear end 222 of the first clamping frame 22 and the first portion The grip ends 212 of the grip 21 are on the same line.

The second holder 30 is connected to the first holder 20, and the second holder 30 includes a second handle 31 and a second clamp 32. The second handle 31 is provided with a connection. The end 311 and a holding end 312 away from the connecting end 311, the second clip 32 has a front end 321 and a rear end 322 away from the front end 321 , and the rear end 322 of the second clip 32 is adjacent to the first end One side of the holder 20 is pivotally disposed on the connecting end 211 of the first grip 21, and the rear end 322 of the second clip 32 is pivotally disposed on the second grip away from the side of the first gripper 20 The connection end 311 of 31.

The second clamping jaw 32 is provided with a clamping portion 323 between the front end 321 and the rear end 322. The clamping portion 323 of the second clamping jaw 32 has a zigzag shape, and the clamping portion 323 of the second clamping jaw 32 is The clamping portions 223 of the first clamping jaws 22 are opposite to each other, and the front end 321 and the rear end 322 of the second clamping jaw 32 and the holding end 312 of the second grip 31 are on the same straight line.

The second holder 30 further includes a top member 33 and an elastic member 34. One end of the top member 33 is pivotally disposed between the two ends of the second handle 31. The top member 33 is away from the One end of the second grip 31 is slidably disposed on the sliding section 213 of the first grip 21 and abuts against the adjusting member 214 and is movable relative to the first grip 21 in synchronization with the adjusting member 214. One end of the elastic member 34 is connected to the rear end 322 of the second clip 32 and the other end is between the two ends of the first grip 21. The elastic member 34 is the second clip 32 and the first grip at the same time. The shank 21 provides a pulling force, and the elastic member 34 is a tension spring in this embodiment.

The second holder 30 further includes a release member 35 pivotally disposed on the second handle 31, and the release member 35 is located on the top handle 33 and the second handle 31. Between ends 322.

Please refer to FIG. 6 and FIG. 7 for the use state diagram and operation diagram of the clamping device for quickly adjusting the clamping force of the present invention. When the clamping device 10 is in use, the user can hold the workpiece 90 by the clamping portion 223 of the first clamping frame 22 and the clamping portion 323 of the second clamping jaw 32, and the adjusting member 214 is close to the When the first grip 21 is moved in the direction of the connecting end 211, the clamping portion 323 of the second clip 32 and the clamping portion 223 of the first clip 22 are close to each other, and the adjusting member 214 is away from the first grip. When the direction of the connecting end 211 is moved, the clamping portion 323 of the second jaw 32 and the clamping portion 223 of the first jaw 22 are apart from each other.

The clamping device 10 can insert the design of the operating rod 217 through the through hole 216 of the adjusting member 214, so that the clamping device 10 can still rotate the adjusting member at any time while the workpiece 90 is being clamped. 214 adjusts the gripping force of the gripping device 10 to make the gripping device 10 easy to operate, and to increase the convenience during work.

Moreover, the clamping device 10 has a structure in which the length of the second width W2 is smaller than the length of the first width W1, so that the volume of the adjusting member 214 is not excessively large, and the operator does not operate the clamping device 10 when operating. The clamping device 10 is made to be very easy to handle by the influence of the protruding adjustment member 214.

The clamping device 10 is further such that the length of the second width W2 is not less than 0.9 times the length of the first width W1, and the length of the third width W3 is between 0.3 and 0.5 times the length of the second width W2. Therefore, the adjusting member 214 has good structural strength and is not deformed by being pulled by the operating rod 217.

When the user releases the work item 90, pressing the release member 35 enables the release member 35 to push the second holder 30 back from the clamped position to the release position.

As far as the above is concerned, it can be concluded that the present invention has the following advantages:

1. The clamping device for quickly adjusting the clamping force of the present invention, wherein the clamping device comprises a first holder and a second holder, the first holder comprising a first grip and a first a first grip has a connecting end and a grip end away from the connecting end, the first grip has a sliding section between the connecting end and the grip end, and the sliding section is adjacent to the first grip a holding end, the first clamping jaw has a front end and a rear end away from the front end, the rear end of the first clamping jaw is fixedly connected to the connecting end of the first grip, and the first clip is disposed between the front end and the rear end a clamping portion, the first handle has an adjusting member, one end of the adjusting member is axially screwed on the holding end of the first handle and extends to the sliding portion along a virtual rotating shaft, and the adjusting member can be close to or An end portion away from the first grip, the end of the adjusting member away from the grip end of the first grip is provided with an operating portion, and the outer circumference of the first grip slip segment forms a first width along a maximum width in a radial direction of the virtual rotating shaft , the outer circumference of the adjustment member operating portion is the most radially along the virtual rotation axis The width forms a second width, the length of the second width is smaller than the length of the first width, the operating portion of the adjusting member is provided with a through hole, the through hole penetrates both sides of the adjusting portion of the adjusting portion, and the second holder is connected to the first a holder, the second holder comprises a second handle and a second clamp, the second handle is provided with a connection end and a holding end away from the connection end, the second clamp has a front end and a Aside from the rear end of the front end, the rear end of the second clamp is pivoted to the connecting end of the first gripper, and the rear end of the second clamp is away from the side of the first gripper. The second clamping portion is disposed at a connecting end of the second handle, and the second clamping portion is provided with a clamping portion between the front end and the rear end, the clamping portion of the second clamping jaw and the clamping portion of the first clamping jaw are opposite to each other, and the second The holder further includes a top member and an elastic member, one end of the top member is pivotally disposed between the two ends of the second handle, and the one end of the top member away from the second handle is relatively slidably disposed at the second portion a sliding section of a handle and abutting against the adjusting member, one end of the elastic member is connected to the rear end of the second clamping jaw and the other Between the two ends of the first handle at one end, the elastic member simultaneously provides a pulling force for the second clamping jaw and the first clamping handle, and the through hole of the adjusting member can insert the design of the operating rod, so that the clamping device is clamped In the state of the work object, the adjustment member can still be rotated by hand at any time, and the clamping device is not excessively large in volume by the structure in which the length of the second width is smaller than the length of the first width.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so that the numerical value is changed or the equivalent element is replaced, or the equivalent of the scope of the patent application of the present invention. Changes and modifications are still within the scope of the invention patent.

10‧‧‧Clamping device
20‧‧‧First holder
21‧‧‧First grip
211‧‧‧Connected end
212‧‧‧Handheld
213‧‧‧slide section
214‧‧‧Adjustment
215‧‧‧Operation Department
216‧‧‧through holes
217‧‧‧Operation lever
22‧‧‧First folder颚
221‧‧‧ front end
222‧‧‧ Backend
223‧‧‧ gripping department
30‧‧‧Second gripper
31‧‧‧Second grip
311‧‧‧Connected end
312‧‧‧Handheld
32‧‧‧Second folder
321‧‧‧ front end
322‧‧‧ Backend
323‧‧‧Clamping Department
33‧‧‧Top conditions
34‧‧‧Flexible parts
35‧‧‧ release
90‧‧‧Works
C‧‧‧Virtual rotation axis
W1‧‧‧ first width
W2‧‧‧ second width
W3‧‧‧ third width
L‧‧‧convex elongation
O‧‧‧Virtual axis

Figure 1 is a perspective view of the clamping device for quickly adjusting the clamping force of the present invention. Fig. 2 is an exploded perspective view showing the adjusting device of the clamping device for quickly adjusting the clamping force of the present invention. Fig. 3 is a cross-sectional structural view showing the clamping device for quickly adjusting the clamping force of the present invention. Fig. 4 is a top plan view of the clamping device for quickly adjusting the clamping force of the present invention. Fig. 5 is a side elevational view of the clamping device for quickly adjusting the clamping force of the present invention. Fig. 6 is a view showing the state of use of the holding device for quickly adjusting the clamping force of the present invention. Fig. 7 is an operation diagram of the clamping device for quickly adjusting the clamping force of the present invention.

10‧‧‧Clamping device

20‧‧‧First holder

21‧‧‧First grip

211‧‧‧Connected end

212‧‧‧Handheld

213‧‧‧slide section

214‧‧‧Adjustment

215‧‧‧Operation Department

216‧‧‧through holes

22‧‧‧First folder颚

221‧‧‧ front end

222‧‧‧ Backend

223‧‧‧ gripping department

30‧‧‧Second gripper

31‧‧‧Second grip

311‧‧‧Connected end

312‧‧‧Handheld

32‧‧‧Second folder

321‧‧‧ front end

322‧‧‧ Backend

323‧‧‧Clamping Department

33‧‧‧Top conditions

35‧‧‧ release

C‧‧‧Virtual rotation axis

O‧‧‧Virtual axis

Claims (12)

A clamping device for quickly adjusting a clamping force, comprising: a first holder, the first holder comprising a first handle and a first clamping frame, the first holding handle is provided with a a connecting end and a holding end away from the connecting end, the first handle has a sliding section between the connecting end and the holding end, the sliding section is adjacent to the holding end of the first handle, the first The clip has a front end and a rear end away from the front end, and a rear end of the first clip is fixedly connected to the connecting end of the first grip, and the first clip is provided with a clip between the front end and the rear end The first handle has an adjusting member, and one end of the adjusting member is axially disposed on the holding end of the first handle and extends to the sliding portion along a virtual rotating shaft, and the adjusting member rotates An operating portion can be disposed at an end of the adjusting member away from the first grip holding end, and an outer peripheral edge of the first grip sliding portion is radially along the virtual rotating shaft The maximum width forms a first width, and the outer circumference of the operating portion of the adjusting member is along the virtual The maximum width of the radial direction of the quasi-rotating shaft forms a second width, and the length of the second width is smaller than the length of the first width. The operating portion of the adjusting member is provided with a through hole penetrating through the operating portion of the adjusting member. a second gripper, the second gripper is coupled to the first gripper, the second gripper includes a second grip and a second grip, the second grip a connecting end and a holding end away from the connecting end, the second clamping jaw has a front end and a rear end away from the front end, and a rear end of the second clamping jaw is adjacent to a side of the first clamping device a pivoting end is disposed at a connecting end of the first grip, a rear end of the second clip is remote from a side of the first gripper, and is disposed at a connecting end of the second grip, the second clip is at the front end A clamping portion is disposed between the rear ends, the clamping portion of the second clamping jaw and the clamping portion of the first clamping jaw are opposite to each other, and the second clamping device further comprises a top jaw member and an elastic member One end of the top member is pivotally disposed between the two ends of the second handle, and the top member is away from the end of the second handle. a sliding portion disposed opposite to the first grip and abutting against the adjusting member, one end of the elastic member being connected to the rear end of the second clip and the other end of the first grip The elastic member simultaneously provides a pulling force to the second clamp and the first grip. The clamping device for rapidly adjusting the clamping force according to claim 1, wherein the through hole penetrates both sides of the adjusting member operating portion along an axial direction of the virtual through shaft, the virtual through shaft and the virtual rotating shaft are perpendicular to each other . The clamping device for rapidly adjusting the clamping force as described in claim 2, wherein the length of the second width is not less than 0.9 times the length of the first width. The clamping device for rapidly adjusting the clamping force according to claim 2 or 3, wherein a maximum width of the through hole along a radial direction of the virtual transverse axis forms a third width, and a length of the third width is smaller than the second width One-half of the length. The clamping device for rapidly adjusting the clamping force as described in claim 4, wherein the length of the third width is between 0.3 and 0.5 times the length of the second width. The clamping device for rapidly adjusting the clamping force according to claim 4, wherein the operating portion of the adjusting member forms a convex elongation along a length of the virtual rotating shaft axial direction, and the length of the protruding elongation is not less than the second One-half the length of the width. The gripping device for rapidly adjusting the gripping force as described in claim 6, wherein the length of the convex elongation is between 0.5 and 1 times the length of the second width. The clamping device for quickly adjusting the clamping force according to claim 6, wherein the through hole of the adjusting member is inserted with an operating rod extending in the axial direction of the virtual through shaft. The clamping device for rapidly adjusting the clamping force according to claim 8, wherein the front end of the first jaw and the rear end of the first grip are on the same straight line, and the front end of the second clip The rear end and the grip end of the second grip are on the same line. The clamping device for rapidly adjusting the clamping force according to claim 9, wherein the second holder further comprises a releasing member pivotally disposed on the second handle, and the releasing member is located at the top Between the jaw and the grip end of the second grip. The clamping device for quickly adjusting the clamping force according to claim 10, wherein the clamping portion of the first clamping jaw is in a zigzag shape, and the clamping portion of the second clamping jaw is in a zigzag shape. The clamping device for quickly adjusting the clamping force according to claim 11, wherein the elastic member is a tension spring, and the operating portion has a round rod shape.