CN2312106Y - Quick action adjustable jaw wrench - Google Patents

Abstract

The utility model provides a quick action adjustable wrench which comprises a wrench body, a movable jaw and an adjusting device. One end of the wrench body is a grab handle, the other end which is relative to the grab handle is provided with a fixed jaw, a clamping part is arranged on the fixed jaw, and one side of the wrench body is provided with a pin joint part. A bulge is arranged on the wrench body between the fixed jaw and the pin joint part, a hook part is formed at one end of the movable jaw, an action space which is relative to the hook part is formed, pin holes are respectively arranged on the movable jaw, and an adjusting wheel and a screw rod are assembled to form an adjusting device. The push and the press of the push handle in the components are used for causing that the common difference gap of the wrench body clamping a spiral piece can automatically enlarge to a standard size, and the utility model is convenient and easy in use.

Description

Adjustable speeder wrench

The utility model relates to a kind of adjustable speeder wrench, and is particularly a kind of, and when clamping work pieces, that utilizes that wrench body pushes away handle pushes away, presses work, but quick rotation is bolted on and the adjustable speeder wrench of applicable multiple size bolt.

Bolt has been one of indispensable strength member in the present civilized society, be widely used in machinery, bicycle, locomotive, building, fields such as automobile, live closely bound up with people, and bolt tighten and unscrew must dependence instrument, and instrument mainly is divided into two kinds of hand-operated tools and electric tools, wherein electric tool is because of being subjected to the restriction of problems such as various countries' voltage specification and security, therefore quite not universal, it is low to review its price of hand-operated tools, need not electric power, easy to operate, its popularization degree is quite high, and want elasticity bolt its most frequently used be open-end wrench, it is elasticity bolt quite effectively, but its maximum shortcoming is in the process of using, must constantly in nut, break away from and combine with nut again, so its convenience is not good, and a kind of open-end wrench can only be suitable for a kind of nut, adding upper cap nut has the differentiation of English system and metric system again, therefore the worker often needs two cover spanners to satisfy the demand, and two cover spanner dimensions just have thirties kinds more than, because, this just the someone design a kind of monkey wrench, the bolt of the applicable multiple size of monkey wrench, it is to utilize a runner to adjust the opening angle of movable jaw, and in order to make the monkey wrench usability extensive, the someone designs and changes fixed jaw to be suitable for the bolt of different shape, as No. the 3916735th, United States Patent (USP), referring to this patent specification Figure 10, though the bolt of its applicable multiple size, but still have following shortcoming:

(1) Zui Da shortcoming is that still it can't " fast " screw bolt, so can't overcome the shortcoming of above-mentioned general open-end wrench;

(2) its head is excessive, desires wrenching bolt at small space and will have any problem;

(3) manufacture difficulty height, the cost height, because of its whole spanner is forging and molding, its head must mill into the chute of hollow form, slides within it for movable jaw.And the chute that will mill this hollow form of system is quite time-consuming;

(4) when monkey wrench uses, the drive of movable jaw process runner is near nut, but lean on to such an extent that too tightly will be difficult for withdrawing from nut, too pine is then when screwing nut, to cause having the phenomenon of debentition to take place, its main cause is to be that the runner tooth is too thick, and it only has three teeth, moreover runner there is no any fine setting signal, after the operator is transferred to fishbolt, must unscrew some tolerance clearance could operate, but the operator can't know to unscrew how much be only standard clearance, can't operate so often cause too tightly, too pine is destroyed workpiece, so forbid using monkey wrench in the military supplies maintenance, even if adjust to the most suitable tolerance dimension, because of adjusting the no fixture of wheel, movable jaw still causes and walks under the turn number, its tolerance has just become, so the general activity spanner causes movable jaw to walk in operating process quite easily, has produced unnecessary debentition phenomenon.

Because the existence of above-mentioned reason, therefore History of United States of America Nai Pu Worktools Inc. of the big factory of world's instrument designs a kind of open fast wrench, first application was promptly proposed in 1989, through the case application that repeatedly continues, the side got permission in 1996, U.S. Patent number is No. 5551322, so-called in fact open fast wrench is in instrument market, the world, not very new design, No. the 3762244th, United States Patent (USP) as bulletin in 1973, it also belongs to so-called fast opening spanner, and its advantage is to screw bolt fast, but its maximum shortcoming is being in being suitable for multiple size also, with regard to above-mentioned open-end wrench, it is mainly professional personage and uses, and its benefit is the torsion height, but for common people, above-mentioned fast opening spanner is still convenient inadequately, do not need very high torsion because rotate general bolt, but require higher convenience, price should be that ordinary consumer can afford.

The utility model purpose is to provide a kind of adjustable speeder wrench, the spanner that particularly a kind of utilization can screw bolt fast and be suitable for various different size specifications, during clamping work pieces, can push away handle by one and directly push, be amplified to a standard-sized purpose automatically to reach.

The purpose of this utility model is achieved in that described adjustable speeder wrench comprises a wrench body, movable jaw, adjusting device, wherein wrench body one end is provided with a fixed jaw, establish a storage tank in this fixed jaw, movable jaw and wrench body combine, and between movable jaw and wrench body, be provided with an adjusting device, this adjusting device is in order to adjust the size of opening angle between movable jaw and fixed jaw, its middle regulator is adjusted wheel by one and is formed with screw combinations, go up the protruding key of distribution number and adjust wheel, a ccontaining elastomer in storage tank wherein, and be provided with a cover in wrench body one side and have the eccentrically weighted shaft that articulates movable axis, pull and push away between handle and the elastomer with top respectively establishing two deep-slotted chip breakers on the eccentrically weighted shaft in one, and elastomer leans below eccentrically weighted shaft, drive the moving partially gap of eccentrically weighted shaft when handle pushes by pushing away, make movable jaw adjust the distance that clamps spiral shell spare automatically.

The characteristics and the advantage of adjustable speeder wrench of the present utility model are:

(1) the adjustable speeder wrench of the utility model has the bolt that is applicable to multiple dimensions than the easier adjustment of general activity spanner, and the user can directly take turns rapid adjustment to screw or to unscrew bolt by adjusting, and is quite convenient in the use.

(2) adjustable speeder wrench of the present utility model clamps spiral shell spare and will push away handle down on time, can make the latch that pushes away handle block the protruding key of adjusting wheel simultaneously, thus with spring and steel ball hold strength make push away handle adjustment location after, can not go again and become flexible.

(3) adjustable speeder wrench of the present utility model is characterised in that the pushing that its utilization pushes away handle can make wrench body when desiring turn spiral shell spare, the tolerance clearance of unclamping fishbolt automatically is amplified to the size of a standard, make the operator must slowly not adjust the distance of fishbolt that calculating is desired, suitable convenient and easily in the operation, and can improve user's efficient.

To effect of the present utility model, feature and purpose further understanding can be arranged for making, after now lifting a most preferred embodiment and cooperating institute's accompanying drawing to be illustrated in, wherein:

Fig. 1 is the stereogram according to the adjustable speeder wrench that the utility model proposes;

Fig. 2 is the exploded view according to the adjustable speeder wrench that the utility model proposes;

Fig. 3 is the section action schematic diagram according to the adjustable speeder wrench that the utility model proposes;

Fig. 4 is another section action schematic diagram according to the adjustable speeder wrench that the utility model proposes;

Fig. 5 is the schematic diagram that is suitable for multiple dimensions bolt according to the adjustable speeder wrench that the utility model proposes.

Existing conjunction with figs. is described in detail as follows the utility model embodiment:

As Fig. 1, shown in Figure 2, the utility model comprises: wrench body 10, movable jaw 20 and adjusting device 30, wrench body 10 elongated shapes wherein, the one end is a lever 11, the other end with respect to lever 11 then is provided with fixed jaw 14, this fixed jaw 14 is provided with a clamping part 141 in order to hold bolt, a side of relative fixed jaw 14 is provided with articulated section 12 on wrench body 10, in order to articulate movable jaw 20, this articulated section 12 is provided with two pivoted holes that run through 122, between two pivoted holes 122, then form a loose slot 121, and be arranged with a storage tank 125 in loose slot 121 inside, put a spring 124 and steel ball 123 in regular turn, then be provided with protuberance 13 in fixed jaw 14 and articulated section on 12 the wrench body 10, the thickness of this protuberance 13 is thin than wrench body 10, so form dented space 131 in protuberance 13 both sides, on dented space 131, be provided with pivoted hole 1311, on pivoted hole 122, be pivoted in addition and one be with the eccentrically weighted shaft 28 that articulates movable axis 25, a deep-slotted chip breaker 281 is respectively established at these eccentrically weighted shaft 28 two ends, 282, and at this deep-slotted chip breaker 281, a left side of 282, right two ends respectively form a beveled end 281a, 281b, 282a, 282b (as shown in Figure 3), and above eccentrically weighted shaft 28, screw togather one by bolt 274 and push away handle 27, this pushes away handle 27 1 ends and establishes a card circle 271, the other end then is provided with latch 275, wherein block circle 271 left sides, a hook part 272 is also protruded in right two ends, can be fixed in two deep-slotted chip breakers 281 so that this pushes away handle 27,282 two beveled end 281a, 282a.

One movable jaw 20 is claw-like, and the one end forms hook part 21, forms an activity space 22 with respect to 21 of hook parts, is respectively equipped with pivot hole 221,222 on the movable jaw 20.

One adjusting device 30 is combined by adjustment wheel 31 and screw rod 32, and wherein adjustment wheel 31 is an one with screw rod 32, around being distributed with protruding key 311, fixes space 312 in 311 formation of two protruding keys on adjustment wheel 31.

During assembling such as Fig. 1,2, shown in 3, to articulate movable axis 25 earlier and be inserted in eccentrically weighted shaft 28, after eccentrically weighted shaft 28 inserted pivot hole 122, to push away handle 27 is attached on the eccentrically weighted shaft 28, to adjust again wheel 31 screw rod 32 two ends respectively with articulate movable axis 24,25 screw 251,241 are screwed togather, at last with after pivot hole 131 overlapping alignment the on the pivot hole 221 on the movable jaw 20 and the wrench body 10, utilizing pivot 23 to pass above-mentioned two holes is articulated movable jaw 20 and wrench body 10, wherein movable jaw 20 is to serve as that axle is done the adjustment of opening angle with pivot 23, and the protuberance 13 of wrench body 10 stretches into the variation of making opening angle in the activity space 22 of movable jaw 20; Wherein spring 124, the steel balls 123 in the storage tank 125 closely rely on eccentrically weighted shaft 28 and push away handle 27, can make to push away handle 27 and remain on tight state; Moreover when desiring the clamping workpiece, then rotate adjustment by hand, adjust wheel 31 and rotate the open size that can adjust movable jaw 20, to clamp the spiral shell spare of different size.

Shown in 5, this Fig. 5 is the quick adjustable spanner that the utility model proposes, be suitable for the schematic diagram of multiple dimensions bolt, when no matter the utility model is applicable to undersized bolt or large-sized bolt, need only rotate and adjust wheel 31, make to adjust to take turns 31 screw rod 32 and articulate movable axis 25,24 to produce relative motions, make the opening angle of movable jaw 20 control movable jaws 20, the plane that makes its opening angle be contracted to face of leaning 26 and nut gradually is adjacent to.

Consult shown in Figure 3 again, when the utility model before clamping spiral shell spare fully, must will push away handle 27 up pushes away, it is slightly toward the state that upwarps, push away the hook part, card circle 271 two ends 272 of handle 27 this moment, 273 and collude respectively and be located at two deep-slotted chip breakers 281,282 beveled end 281a, on the 282a, steel ball 123 then peaks at eccentrically weighted shaft 28 this moment wherein on the beveled end 282b of a deep-slotted chip breaker 282, and because this eccentrically weighted shaft 28 is eccentric shape, and eccentrically weighted shaft screws togather screw rod 32, adjust wheel 31 and slightly be the not equidistant of one " L " with fixed jaw 12 borders, when the operator will adjust earlier wheel 31 be adjusted to spiral shell spare clamped after, clamped condition can't rapid movement, thus can be directly with push away handle 27 toward press down by.

As shown in Figure 4, when push away handle 27 toward press down by after, steel ball 123 is peaked on the beveled end 2821 of another deep-slotted chip breaker 282, after making eccentric eccentrically weighted shaft 28 turn to longer diameter limit and then moving partially a bit of distance simultaneously by shorter diameter limit, make eccentrically weighted shaft 28 will articulate movable axis 25 and drive the mobile slightly backward distance of screw rod 32, " L " distance of adjusting wheel 31 and fixed jaw 12 is dwindled, the tolerance clearance that while interlock movable jaw 20 is clamped spiral shell spare is amplified to standard size, can reach the interlock gap of standard this moment, interlock is pulled spiral shell spare apace, and utilize the folder tooth 275 that pushes away handle 27 to clamp screw rod 32, because of spring 124, the strength that holds of steel ball 123 makes this gap in case just can not become flexible after adjusting the location, and is quite quick and convenient in the operation.

Claims (2)

1, a kind of adjustable speeder wrench, comprise a wrench body, movable jaw, adjusting device, wherein wrench body one end is provided with a fixed jaw, establish a storage tank in this fixed jaw, movable jaw and wrench body combine, and between movable jaw and wrench body, be provided with an adjusting device, this adjusting device is in order to adjust the size of opening angle between movable jaw and fixed jaw, its middle regulator is adjusted wheel by one and is formed with screw combinations, go up the protruding key of distribution number and adjust wheel, it is characterized in that: a ccontaining elastomer in storage tank, and be provided with a cover in wrench body one side and have the eccentrically weighted shaft that articulates movable axis, pull and push away between handle and the elastomer with top respectively establishing two deep-slotted chip breakers on the eccentrically weighted shaft in one, and elastomer leans below eccentrically weighted shaft, drive the moving partially gap of eccentrically weighted shaft when handle pushes by pushing away, make movable jaw adjust the distance that clamps spiral shell spare automatically.

2, adjustable speeder wrench according to claim 1 is characterized in that: movable jaw can run through movable jaw and wrench body by a pivot with combining of wrench body, and both are articulated, and to make movable jaw be that the center rotates with the pivot.

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