TW201605590A - Clamping device capable of preventing adjusting screw from falling off - Google Patents

Abstract

A clamping device capable of preventing adjusting screw from falling off comprises a first clamper and a second clamper. The first clamper comprises a first handle and a first clamp jaw which are mutually fixed and connected. The first handle is axially extendingly disposed along a virtual penetrating axis with an internal thread part. The first handle comprises a slipping section and an adjustment member. The adjustment member is axially screwed to the internal thread part along the virtual penetrating axis. One end of the adjustment member is formed with a fall-off prevention part and extended to the slipping section. The distance from top of the fall-off prevention part to the axis is not less than the hole diameter of the internal thread part. The second clamper is connected with the first clamper. The second clamper further comprises an abutting member. One end of the abutting member is slidably disposed to the slipping section of the first handle and abutted against the adjustment member. The adjustment member cannot depart from the first handle with the fall-off prevention part, so as to prevent the adjustment member from falling off due to the excessive rotation.

Description

Holding device for preventing adjustment screw from falling off

The invention mainly discloses a clamping device, in particular a clamping device for preventing the adjusting screw from falling off.

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 turning the bolts. When adjusting the tightness of the universal tongs, the bolts inside the universal tongs cannot be observed, and the user does not know the length of the bolts, resulting in continuous user When the bolt is loosened, the bolt will be detached by the universal pliers, and the user must reinstall the bolt back to the universal pliers by himself, which is quite troublesome.

In view of the above-described deficiencies in the conventional structure, the inventors have invented a holding device for preventing the detachment of the adjusting screw, which overcomes all the disadvantages of the above-mentioned 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 clamp, the first handle is provided with a connecting end and a holding end away from the connecting end, and the first grip is provided with an internal thread portion extending in the axial direction of the virtual through shaft at the grip end, The threaded portion extends from the grip end of the first grip to the connecting end, and the inner thread portion has a minimum diameter along the inner diameter of the inner diameter of the virtual cross shaft, and the first grip has a gap between the connecting end and the grip end. a sliding section, the sliding section is adjacent to the holding end of the first grip, the first clip has a front end and a rear end away from the front end, and the rear end of the first clip is fixedly connected to the connecting end of the first grip a first clamping portion is provided with a clamping portion between the front end and the rear end, the first grip has an adjusting member, and the adjusting member is screwed on the internal thread portion of the first grip along the axial direction of the virtual through shaft, the adjusting member One end forms a retaining portion and extends to the slip section and is adjusted The opposite end of the opposite piece extends away from the first grip connecting end and protrudes from the internal thread portion, and the retaining portion of the adjusting member forms a maximum height along the radial distance of the virtual cross shaft from the farthest distance of the virtual cross shaft. The maximum height is not less than the minimum aperture, the adjusting member can be moved closer to or away from the connecting end of the first grip, the second gripper is connected to the first gripper, and the second gripper includes a second grip and a a second clamp, the second handle is provided with 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 the rear end of the second clamping jaw is adjacent to the first clamping One side of the device is pivotally connected to the connecting end of the first handle, the rear end of the second clamping jaw is pivoted away from the connecting end of the second handle, and the second clamping is at the front end and the rear. A clamping portion is disposed between the 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, the top jaw member One end is pivoted between the two ends of the second handle, and the top piece is away from the second handle The end portion is slidably disposed on the sliding portion of the first grip and abuts against the adjusting member, one end of the elastic member is connected to the rear end of the second clip and the other end is between the two ends of the first grip, the elastic member At the same time, the second clamping jaw and the first grip are provided with a pulling force, and the adjusting member can not be separated from the first grip by the anti-offing portion, thereby preventing the adjusting member from rotating excessively and falling off.

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

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

1 to 3, a perspective view, an exploded perspective view and a cross-sectional structural view of a first embodiment of a clamping device for preventing an adjusting screw from falling off are provided. The clamping device 10 of the present invention includes a first holder 20 and a second holder 30; wherein:

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. An inner end portion 213 is disposed on the grip end 212 along the axial direction of the virtual cross shaft C. The inner thread portion 213 is formed by the grip end 212 of the first grip 21 toward the connecting end 211. a direction extending, a diameter of the inner circumference of the internal thread portion 213 along the radial direction of the virtual coaxial axis C forms a minimum aperture D1, and the diameter of the outer circumference of the internal thread portion 213 along the radial direction of the virtual coaxial axis C forms a maximum aperture D2. The first grip 21 has a sliding section 214 between the connecting end 211 and the grip end 212 , and the sliding section 214 is adjacent to the grip end 212 of the first grip 21 .

The first handle 21 further has an adjusting member 215. The adjusting member 215 is screwed to the internal thread portion 213 of the first handle 21 along the axial direction of the virtual coaxial axis C. One end of the adjusting member 215 forms an anti-defense member. The detaching portion 216 extends to the sliding portion 214 and the opposite end of the adjusting member 215 extends away from the connecting end 211 of the first handle 21 and protrudes from the internal thread portion 213. The adjusting member 215 can be selected. The first grip 21 rotates and moves synchronously, and the adjusting member 215 can rotate toward or away from the connecting end 211 of the first grip 214 when rotated.

The retaining portion 216 is provided with a retaining ring 217. The retaining ring 217 surrounds the retaining portion 216 around the virtual through-axis C. The retaining portion 216 of the adjusting member 215 is along the virtual through-axis C. The distance from the farthest distance of the virtual cross-axis C forms a maximum height H, which is not less than the minimum aperture D1, which is not less than the maximum aperture D2 in this embodiment, and the anti-off loop 217 is a C-shaped buckle in this embodiment.

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 front end 221 and the rear end 222 of the first clamping frame 22 and the holding end 212 of the first grip 21 are on the same straight 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 and the clamping portion 223 of the first clamping jaw 22 are opposite to each other. The front end 321 of the second clip 32, the rear end 322, and the grip 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 214 of the first grip 21 and abuts against the adjusting member 215 and is movable relative to the first grip 21 in synchronization with the adjusting member 215. 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.

Referring to FIG. 4 and FIG. 5, it is an operation diagram of the first embodiment of the holding device for preventing the adjusting screw from falling off according to 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 215 is close to the When the direction of the connecting end 211 of the first grip 21 is moved, 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 215 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.

When the anti-drop ring 217 is sleeved on the retaining portion 216, the adjusting member 215 cannot be separated from the first grip 21, and the adjusting member 215 is prevented from being excessively rotated and falling off. The anti-detachment ring 217 is sleeved after the adjusting member 215 is screwed to the first handle 21, so that the clamping device 10 can prevent the adjusting member 215 from falling off only by performing a simple operation. .

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.

Referring to Fig. 6 and Fig. 7, an exploded perspective view and a cross-sectional structural view of an adjusting member of a second embodiment of the holding device for preventing the adjusting screw from falling off are provided. The second embodiment of the present invention is substantially the same as the first embodiment. The main difference is that the retaining portion 216a is provided with a retaining pin 218a that penetrates the retaining portion 216a in the radial direction of the virtual coaxial axis C. The anti-distraction pin 218a is a round pin in this embodiment.

The anti-drop pin 218a is inserted into the adjusting member 215a after the adjusting member 215a is screwed to the first grip 21a, so that the adjusting member 215a can be prevented from falling off only by performing a simple operation.

Referring to Fig. 8, there is shown a cross-sectional structural view of an adjusting member of a third embodiment of the holding device for preventing the adjusting screw from falling off. The third embodiment of the present invention is substantially the same as the first embodiment. The main difference is that the retaining portion 216b is provided with a retaining flange 219b which is located along the radial direction of the virtual coaxial axis C. One side of the detachment 216b.

The detachment preventing flange 219b is deformed to form an integrally formed structure by the detachment preventing portion 216b of the adjusting member 215b after the adjusting member 215b is screwed to the first grip 21b, and the adjusting member 215b is deformed to form an integrally formed structure. It is only necessary to carry out simple work to achieve the effect of preventing falling off.

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

1. The clamping device for preventing the adjusting screw from falling off according to the present invention, wherein the clamping device comprises a first holder and a second holder, the first holder comprising a first handle and a first The first handle is provided with a connecting end and a holding end away from the connecting end. The first grip is provided with an internal thread portion extending along the axial direction of the virtual through shaft at the grip end, and the internal thread portion is The grip end of the first grip extends toward the connecting end, and the diameter of the inner circumference of the internal thread portion along the radial transverse axis forms a minimum aperture, and the first grip has a slip section between the connecting end and the grip end The sliding section is adjacent to the holding end of the first grip, the first clip has a front end and a rear end away from the front end, and the rear end of the first clip is fixedly connected to the connecting end of the first grip, the first clip A clamping portion is disposed between the front end and the rear end, and the first grip has an adjusting member, and the adjusting member is screwed on the internal thread portion of the first grip along the axial direction of the virtual through shaft, and one end of the adjusting member is formed. a retaining portion and extending to the slip section and the opposite end of the adjustment member Extending away from the connecting end of the first grip and protruding the internal thread portion, the retaining portion of the adjusting member forms a maximum height along the radial distance of the virtual cross shaft from the farthest distance of the virtual cross shaft, and the maximum height is not less than the minimum aperture The adjusting member can be moved closer to or away from the connecting end of the first grip, the second gripper is connected to the first gripper, and the second gripper comprises a second grip and a second gripper, The two grips are provided with a connecting end and a gripping end away from the connecting end, the second clip has a front end and a rear end away from the front end, and the rear end of the second clip is pivoted to a side of the first holder The second end of the second clamp is disposed at a connecting end of the second grip, and the second clip is disposed between the front end and the rear end. The clamping portion, the clamping portion of the second clamping jaw and the clamping portion of the first clamping jaw are opposite to each other, the second clamping device further comprises a top jaw member and an elastic member, wherein one end of the top jaw member is pivoted Between the two ends of the two grips, the end of the top jaw away from the second grip can slide relative to each other Provided on the sliding section of the first 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 end is between the two ends of the first clamping handle, and the elastic member is simultaneously the second clamping member The first grip provides a pulling force, and the adjusting member cannot be separated from the first grip by the retaining portion, thereby preventing the adjusting member from excessively rotating and falling off.

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‧‧‧Threaded Department
214‧‧‧Slip section
215‧‧‧Adjustment
216‧‧‧Protection
217‧‧‧Protection
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
21a‧‧‧First grip
215a‧‧‧Adjustment
216a‧‧‧Protection
218a‧‧‧Anti-out of stock
21b‧‧‧First grip
215b‧‧‧Adjustment
216b‧‧‧Protection Department
219b‧‧‧Anti-flange
90‧‧‧Works
C‧‧‧Virtual axis
D1‧‧‧Minimum aperture
D2‧‧‧Maximum aperture
H‧‧‧Maximum height

Fig. 1 is a perspective view showing the first embodiment of the holding device for preventing the adjusting screw from falling off. Fig. 2 is an exploded perspective view showing the adjusting member of the first embodiment of the holding device for preventing the adjusting screw from falling off. Fig. 3 is a cross-sectional structural view showing the adjusting member of the first embodiment of the holding device for preventing the adjusting screw from falling off. Fig. 4 is a view showing the operation of the first embodiment of the holding device for preventing the adjusting screw from coming off. Fig. 5 is a view showing the operation of the first embodiment of the holding device for preventing the adjusting screw from falling off according to the present invention. Fig. 6 is an exploded perspective view showing the adjusting member of the second embodiment of the holding device for preventing the adjusting screw from falling off. Fig. 7 is a cross-sectional structural view showing an adjusting member of a second embodiment of the holding device for preventing the adjusting screw from falling off. Fig. 8 is a cross-sectional structural view showing the adjusting member of the third embodiment of the holding device for preventing the adjusting screw from falling off.

21‧‧‧First grip

211‧‧‧Connected end

212‧‧‧Handheld

213‧‧‧Threaded Department

214‧‧‧Slip section

215‧‧‧Adjustment

216‧‧‧Protection

217‧‧‧Protection

C‧‧‧Virtual axis

Claims (10)

A clamping device for preventing the adjusting screw from falling off, comprising: a first holder, the first holder comprising a first handle and a first clamping frame, the first handle having a connection And an end portion away from the connecting end, the first handle is provided with an internal thread portion extending in the axial direction of the virtual through shaft at the grip end, and the internal thread portion is held by the first grip The end portion extends toward the connecting end, and the inner thread portion has a diameter of the inner circumference along the radial direction of the virtual through shaft to form a minimum aperture, and the first handle has a sliding section between the connecting end and the holding end, the slip The first clamp has a front end and a rear end away from the front end, and a rear end of the first clamp is fixedly coupled to the connection end of the first handle, a first clamping portion is provided with a clamping portion between the front end and the rear end, the first clamping handle has an adjusting member, and the adjusting member is screwed on the internal thread of the first handle along the axial direction of the virtual through shaft a portion of the adjusting member forming a retaining portion and extending to the sliding portion and adjusting The opposite end of the whole piece extends away from the first grip connecting end and protrudes from the internal thread portion, and the retaining portion of the adjusting member is located farthest from the virtual cross shaft along the radial direction of the virtual cross shaft The distance forms a maximum height, the maximum height is not less than the minimum aperture, and the adjusting member can be moved closer to or away from the connecting end of the first handle; a second holder connected to the second holder a holder, the second holder includes a second handle and a second clamp, the second handle is provided with a connecting end and a holding end away from the connecting end, the second clip Having a front end and a rear end away from the front end, a rear end of the second clip is pivotally disposed on a side of the first gripper at a connecting end of the first grip, and a rear end of the second clip A side away from the first holder is pivotally disposed at a connecting end of the second handle, and a second clamping portion is disposed between the front end and the rear end, and a clamping portion of the second clamping portion The clamping portions of the first clamp are opposite to each other, and the second clamp further includes a top member and a An elastic member, one end of the top member is pivotally disposed between the two ends of the second handle, and the end of the top member away from the second handle is slidably disposed on the first handle And abutting against the adjusting member, one end of the elastic member is connected to the rear end of the second clamping piece and the other end is between the two ends of the first clamping piece, the elastic member is simultaneously the second clamping piece and the The first grip provides tension. A clamping device for preventing an adjustment screw from falling off according to claim 1, wherein a diameter of an outer circumference of the female thread portion along a radial direction of the virtual transverse axis forms a maximum aperture which is not less than the maximum aperture. The holding device for preventing the adjusting screw from falling off according to claim 2, wherein the retaining portion is provided with a retaining ring, and the retaining ring surrounds the retaining portion around the virtual through shaft. The clamping device for preventing the adjusting screw from falling off according to claim 3, wherein the anti-off ring is a C-shaped buckle. The holding device for preventing the adjusting screw from falling off as described in claim 2, wherein the retaining portion is provided with an anti-off pin that penetrates the retaining portion in a radial direction of the virtual through shaft. The holding device for preventing the adjusting screw from falling off as described in claim 5, wherein the anti-off-pin is a round pin. The clamping device for preventing the adjusting screw from falling off according to claim 2, wherein the retaining portion is provided with a retaining flange, and the retaining flange is located on a side of the retaining portion along a radial direction of the virtual through shaft . The holding device for preventing the adjusting screw from falling off as described in claim 7, wherein the retaining flange is deformed by striking the retaining portion of the adjusting member to form an integrally formed structure. The holding device for preventing the adjusting screw from falling off according to any one of claims 2 to 8, wherein the front end of the first jaw, the rear end and the grip end of the first grip are on the same line, the first The front end, the rear end of the two jaws and the grip end of the second grip are on the same straight line. The clamping device for preventing the adjusting screw from falling off 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 cymbal Between the piece and the grip end of the second grip, the elastic member is a tension spring.