CN201042788Y

CN201042788Y - Pipe wrench with double movable vice jaws

Info

Publication number: CN201042788Y
Application number: CNU2007200626913U
Authority: CN
Inventors: 陈忠皓; 陈家云
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-14
Filing date: 2007-03-14
Publication date: 2008-04-02
Anticipated expiration: 2017-03-14

Abstract

The utility model discloses twin-movable jaw pipe pliers which can continuously generate the clamping force, wherein a movable jaw and an adjusting nut are assembled in the upper through cavity of the pliers handle body, and a swinging jaw is assembled in the mould cavity on the front end of the pliers handle body, or a sliding jaw is assembled in the mould trench on the front end of the pliers handle body. The sections of the swinging jaw are in the two forms of curvilinear geometry and scalene triangle, and the sections of the sliding jaw are in the two forms of curvilinear trapezoid and hypothenuse trapezoid. In the operation, under the frictional resistance which is caused by the force applied by hands to twist a workpiece, the swinging jaw swings continuously or the sliding jaw slides continuously so that the distance between the movable jaw and the swinging jaw or the sliding jaw is shortened to the upper dead point, and then the two jaws self-generate the continuous clamping force so as to tighten or detach the workpiece.

Description

Dual Action jaw pipe vice

Affiliated technical field

The utility model relates to a kind of fastening, as to dismantle pipe, shaft-like workpiece machine tool that is used for, and especially can continue to produce voluntarily clamping force and not eely Dual Action jaw pipe vice.

Background technology

At present, known pipe vice structure is to be assembled by moving jaw, adjustment nut, regular jaw and pincers handle body.During use, push down moving jaw on the other hand, another hand applies torsion at pincers handle body afterbody, makes workpiece rotate then.But these pipe vices make the jaw workpiece that easily slips away sometimes owing to frictional force deficiency or the application of force are excessive, can not use hand because of workpiece surrounding space gap is narrow and small sometimes, and these have all caused the phenomenon of certain difficulty and large tracts of land scratch surface of the work to operation.

Summary of the invention

In order to overcome the tight inadequately and eely deficiency of existing pipe vice clamping, the utility model provides a kind of pipe vice, this pipe vice changes former regular jaw into swing type moving jaw or slidingtype moving jaw, can continue to produce voluntarily clamping force when the twisting workpiece, and can strengthen gradually.

The technical scheme that its technical problem that solves the utility model adopts is: moving jaw, adjustment nut are trapezoidal thread, be installed in the cavity of pincers handle body upside: be made as the swing type moving jaw, the swing jaw uses the screw shaft pin assembly in the die cavity of pincers handle body front end, its A face and pincers handle body downside are in the same way, in the protruding hole of the stop of return spring one end hook on swing jaw A face, in one section groove of the preceding downside of pincers handle body front end, there are two kinds of bent limit shape and scalene triangle in the cross section of swing jaw to the other end with the screw tightening; Be made as the slidingtype moving jaw, sliding jaw is installed in the type groove of pincers handle body front end, its A face and pincers handle body downside are in the same way, return spring one end hook is in protruding hole, the spring location of sliding jaw, the other end uses the bolt tightening on retaining sheet, retaining sheet is with the preceding downside of two screw tightenings in pincers handle body, and there is trapezoidal two kinds of the trapezoidal and hypotenuse in bent limit in the cross section of sliding jaw.

In the operation, mix up the extended distance of moving jaw earlier with the adjustment nut, press flat spring with hand simultaneously, folder is gone up workpiece again, and loosens this flat spring.When pincers handle body afterbody application of force twisting workpiece, the frictional force drag effect of its generation makes the swing jaw to the sustained oscillation of B face direction, and sliding jaw also continues to slide to B face direction.Distance between moving jaw and swing jaw or the sliding jaw will shorten gradually at this moment, promptly produce clamping force voluntarily, and strengthen gradually, until top dead centre.When needing to break away from workpiece, mention pincers handle body afterbody to the opposite direction of the application of force, at this moment jaw will unclamp, and swing jaw or sliding jaw are retracted original position by return spring.

The beneficial effects of the utility model are, can continue to produce voluntarily clamping force in the twisting workpiece, make jaw be difficult for slippage, and easy to use, swing the manufacturing of jaw and sliding jaw and assemble simple and easy.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the broken section structural map of the utility model embodiment 1.

Fig. 2 is the stereogram of the bent limit shape swing jaw of the utility model embodiment 1.

Fig. 3 is the stereogram of the scalene triangle swing jaw of the utility model embodiment 1.

Fig. 4 is the broken section structural map of the utility model embodiment 2.

Fig. 5 is the stereogram of the trapezoidal sliding jaw in bent limit of the utility model embodiment 2.

Fig. 6 is the stereogram of the trapezoidal sliding jaw of hypotenuse of the utility model embodiment 2.

1. moving jaws among the figure are 2. adjusted nut, 3. pincers handle body, and 4. swing jaw, 5. sliding jaw, 6. spring, 7. spring, 8. screw rod pivot pin, 9. retaining sheet, 10. stop is protruding, and 11. springs location is protruding, 12. flat springs, A.A face, B.B face.

The specific embodiment

Embodiment 1: as shown in Figure 1, moving jaw (1) and adjustment nut (2) are that trapezoidal thread cooperates, be installed in the cavity of pincers handle body (3) upside, the front end face of pincers handle bodies (3) is a cambered surface, swing jaw (4) passes through its circular hole with screw rod pivot pin (8), be installed in the die cavity of pincers handle body (3) front end, its A face and pincers handle body (3) downside are in the same way, in the hole of the stop protruding (10) of return spring (6) one end hooks on swing jaw A face, the other end uses the screw rod tightening in one section groove of the preceding downside of pincers handle bodies (3).The cross section of swing jaw (4) is a bent limit shape, and the jaw tooth is distributed on the cambered surface, with stop protruding (10) be the A face at conplane, the face relative with the A face is the B face, the A face length is in the B face; The swing jaw (4) the cross section be scalene, the jaw tooth is distributed on the inclined-plane, with stop protruding (10) be the A face at conplane, the face relative with the A face is the B face, the A face length is in the B face.

Embodiment 2: as shown in Figure 4, moving jaw (1) cooperates for trapezoidal thread with adjustment nut (2), be installed in the cavity of pincers handle body (3) upside, the front end of pincers handle bodies (3) is the inclined-plane, sliding jaw (5) is installed in the type groove of pincers handle body (3) front end, its A face and pincers handle body (3) downside are in the same way, return spring (7) one end hooks are in the hole of the spring location protruding (11) of sliding jaw (5), the other end with the bolt tightening on retaining sheet (9), retaining sheet (9) with two screw tightenings in the preceding downside that clamps handle bodies (3).The cross section of sliding jaw (5) is that bent limit is trapezoidal, and the jaw tooth is distributed on the cambered surface, and the face of locating protruding (11) apart from each other with spring is the A face, is the B face at a distance of nearer face, and the A face length is in the B face; The cross section of sliding jaw (5) is that hypotenuse is trapezoidal, and the jaw tooth is distributed on the inclined-plane, and the face of locating protruding (11) apart from each other with spring is the A face, is the B face at a distance of nearer face, and the A face length is in the B face.

Claims

1. Dual Action jaw pipe vice, is adjusted the cavity that nut places pincers handle body front end at moving jaw, it is characterized in that: establish the die cavity that a swing type moving jaw places pincers handle body front end, or a slidingtype moving jaw places the type groove of pincers handle body front end.

2. Dual Action jaw pipe vice according to claim 1, it is characterized in that: the cross section of swing jaw is bent limit shape or scalene triangle, the front end face of pincers handle body is a cambered surface, and spring one end hook is in the protruding hole of stop, and the other end uses the screw rod tightening in one section groove of the preceding downside of pincers handle body.

3. Dual Action jaw pipe vice according to claim 1, it is characterized in that: the cross section of sliding jaw is that bent limit is trapezoidal or hypotenuse is trapezoidal, the front end face of pincers handle body is the inclined-plane, and spring one end hook is in protruding hole, the spring location of sliding jaw, and the other end uses the bolt tightening on retaining sheet.