CN101422886B

CN101422886B - Ratchet coeswrench

Info

Publication number: CN101422886B
Application number: CN200710185174XA
Authority: CN
Inventors: 周信宏
Original assignee: Stanley Chiro International Ltd
Current assignee: Stanley Chiro International Ltd
Priority date: 2007-11-01
Filing date: 2007-11-01
Publication date: 2012-05-23
Anticipated expiration: 2027-11-01
Also published as: CN101422886A

Abstract

The invention discloses a ratchet type flexible wrench, comprising a wrench body, a regulating screw piece arranged inside the wrench body in a screwing way, and a flexible jaw which can move upwards and downwards under the driving of the regulating screw piece. The wrench is characterized in that a group of movable elastic claw units comprise a clip claw arranged on the flexible jaw and an elastic element which can elastically push the clip claw to move telescopically, the clip claw and a fixing jaw of the wrench body can jointly clamp one screw cap, by virtue of which, when the clip claw is used for carrying out wrench-turning to the screw cap, the effect of continuously wrench-turning without interruption by similar ratchet spring mode is reached.

Description

Ratchet-driven adjustable spanner

Technical field

The present invention relates to a kind of monkey wrench, particularly a kind of ratchet-driven adjustable spanner that utilizes springing shape clip jaw to reach continuous switching effect.

Background technology

Referring to shown in Figure 1; General monkey wrench 10 consists predominantly of adjustment spiral shell spare 12 and movable jaw 13 that is slidingly installed in wrench body 11 front end places that a wrench body 11, an axle are located at place, wrench body 11 the place aheads, and this wrench body 11 has extended back a handle 111, locates on handle 111 the place aheads to extend to be provided with a fixed jaw 112; And offering one near fixed jaw 112 places, wrench body 11 can supply to adjust the slotted eye 113 that spiral shell spare 12 is inserted in; 111 front end places are concaved with chute 114 along the vertical direction one at handle, and this chute 114 can be inserted in confession activity jaw 13 rear ends, makes movable jaw 13 just be relative shape with fixed jaw 112; Can do the clamping switching to a nut (not shown) jointly; The end that movable jaw 13 is inserted in chute 114 just with adjustment spiral shell spare 12 mutually Nie connect, the user can dial the whole spiral shell spare 12 of modulation with hand, moves up and down so as to driving movable jaw 13; So monkey wrench 10 just can carry out the clamping switching to the nut of different size size; Though above-mentioned monkey wrench 10 visual its opening sizes of nut size adjustment, yet when wanting the switching nut, must let monkey wrench 10 switchings to certain angle at every turn; Make monkey wrench 10 extract out again and break away from nut; Just can refund the original place and be inserted in nut again and continue switching, so the action of switching nut quite wastes time and energy and bother, operating efficiency is not good.

In order to solve the problem of switching nut continuously, the dealer develops a kind of ratchet spanner, referring to shown in Figure 2; General ratchet spanner 20 mainly is to be provided with one group of ratchet unit 22 at a wrench body 21 front end places, and this ratchet unit 22 has can the rotate ring 221 of shape of a circle, is provided with a plum blossom perforation 222 that can supply the nut fit in the ring 221 week; Ratchet unit 22 includes clamping piece and the flexible member (above two elements all shows in the drawings) that is embedded in wrench body 21 inside; It is butted that clamping piece receives flexible member, can carry out unidirectional blocking action to ring 221 peripheries in springing ground, and user's clockwise direction switching wrench body 21 like this is rotating screw cap really; 21 of the wrench body of switching counterclockwise can cause idle running; Make wrench body 21 be able to the action that the cycle original place is proceeded the repetition switching again, though above-mentioned ratchet spanner 20 can be reached the continual effect of continuous switching nut really, because the plum blossom perforation 222 of ratchet spanner 20 is the dimensions of fixing; If when running into the nut of wanting the bigger or reduced size of switching; This ratchet spanner 20 just can't be suitable for, and is also not convenient in the use, therefore how to let spanner reach the continual effect of continuous switching; Can take into account the advantage of adjustable dimension again, be the target that the dealer makes great efforts to improve always.

Summary of the invention

The object of the invention is to provide a kind of switching continuously again with the big or small ratchet-driven adjustable spanner of adjustable size.

The present invention provides a kind of ratchet-driven adjustable spanner; Include a wrench body, adjustment spiral shell spare, a movable jaw and one group of pawl unit of can moving; Wherein: this wrench body has handle and fixed jaw that is connected with at place, handle the place ahead of a definite length extended; This place, handle the place ahead is concaved with chute along the vertical direction one; This place, fixed jaw inside edge is provided with one and has the mouth part that turning angle can supply clip one nut, and the angle of this mouth part has defined one first concave point; This adjustment spiral shell spare axle is located at place, handle the place ahead, and it has one section thread segment that is exposed to the handle outside all over the body, and this thread segment can stretch in the chute; These movable jaw anchor clamps have threaded shank and who is set in the chute to be connected with the jaw portion that is relative shape in threaded shank the place ahead and fixed jaw; This threaded shank periphery be provided with one section with the adjustment spiral shell spare thread segment thread groove that connects of Nie mutually, this jaw portion upper limb place is provided with guide groove one along fore-and-aft direction; The pawl unit of can moving has the flexible member that clip jaw and who is slidingly installed on the movable jaw guide groove can push away towards handle direction bullet the clip jaw; This clip jaw upper limb place is provided with one and jointly nut is done the hock portion of clip with mouth part; The edge of this hock portion clamping nut is to have defined one second concave point, and the line between second concave point and first concave point is to be parallel to each other with the axis of threaded shank just.

Effect of the present invention is on movable jaw, to be slidingly equipped with a clip jaw; This clip jaw utilizes that flexible member is butted to have a springing effect; Utilization activity jaw can reach the effect of adjustment size whereby, utilizes the clip jaw can make the action of similar ratchet spanner and reaches the continual advantage of continuous switching.

Description of drawings

Fig. 1 is the stereogram of general activity spanner;

Fig. 2 is the stereogram of general ratchet spanner;

Fig. 3 is the combination stereogram of ratchet-driven adjustable spanner one preferred embodiment of the present invention, explains that the present invention includes a wrench body, adjustment spiral shell spare, a movable jaw and one group of pawl unit of can moving;

Fig. 4 is the exploded perspective view of above-mentioned preferred embodiment, explains that the present invention pawl unit of can moving has a clip jaw, a spacer pin and a flexible member;

Fig. 5 is the side view of above-mentioned preferred embodiment;

Fig. 6 is the assembled sectional view of above-mentioned preferred embodiment, explains that the clip jaw is slidingly installed on the movable jaw movably situation;

Fig. 7 is the action diagram of above-mentioned preferred embodiment, and the situation of a nut of clamping of the present invention is described;

Fig. 8 is the action diagram of above-mentioned preferred embodiment, explains that the present invention carries out the situation of switching in a clockwise direction to nut;

Fig. 9 is the action diagram of above-mentioned preferred embodiment, explains that the present invention rotates in a counter-clockwise direction, and the situation of clip jaw is moved back on the nut top;

Figure 10 is the action diagram of above-mentioned preferred embodiment, explains that the present invention returns back to the original place and can continue the situation to the nut switching;

Figure 11 is the action diagram of above-mentioned preferred embodiment, and the situation of another nut of clamping different specification size of the present invention is described; And

Figure 12 is the action diagram of above-mentioned preferred embodiment, explains that another nut makes the situation that the top deactuate is done to the clip jaw.

The specific embodiment

Aforementioned and other technology contents, characteristics and effect about the present invention are elaborated to the present invention below in conjunction with an accompanying drawing and an embodiment, can clearly appear.

Referring to Fig. 3 and shown in Figure 4; Ratchet-driven adjustable spanner of the present invention is in a preferred embodiment; Whole composition structure is to be similar to general monkey wrench; Consist predominantly of a wrench body 30, adjustment spiral shell spare 40, movable jaw 50 and one group of pawl unit 60 of can moving, then, again with the shape facility of each member of the present invention and after forming the space kenel and being specified in.

This wrench body 30 rear ends extension is provided with a handle 31 with predetermined length; Place, handle 31 the place aheads links to each other to extend and is provided with a fixed jaw 32; This place, handle 31 the place aheads offers a slotted eye 33; Handle 31 is equipped with a straight-through axis hole 34 that arrives in the slotted eye 33 by the place, below, and handle 31 front-end edge places are provided with and dig the chute 35 of establishing and slightly being the cylindrical hole shape together along the vertical direction, and fixed jaw 32 is concaved with one at the place, inside edge and has the mouth part 36 that turning angle can supply nut 100 (see figure 4)s of clip; This mouth part 36 has two folder faces 361, is to have defined one first concave point 37 at the place, angle summit of two folder faces 361.

But these adjustment spiral shell spare 40 spiral shells are arranged on place, handle 31 the place aheads with changeing; It includes a screw rod 41 and a pivot pin 42 that is located in the axis hole 34 of inserting in the slotted eye 33; These screw rod 41 whole body have one section thread segment 411 that is exposed to handle 31 outsides, and these thread segment 411 leading edges can stretch to chute 35 inside, and screw rod 41 centers are equipped with a mesopore 412; This mesopore 412 can supply pivot pin 42 to be inserted in, and makes screw rod 41 be rotated action at this place.

Referring to Fig. 5 and shown in Figure 6, this activity jaw 50 has a threaded shank 51 and a jaw portion 52 simultaneously, and this threaded shank 51 just is inserted in chute 35; Its center has an axis L1 who is parallel to each other with chute 35; Threaded shank 51 rear side peripheries are provided with most roads thread groove 511, these thread grooves 511 can with the thread segment 411 of screw rod 41 mutually Nie connect, spiral shell changes this screw rod 41 and can drive whole movable jaw 50 and adjust mobile up or down whereby; The place, the place ahead that this jaw portion 52 links to each other and is arranged on threaded shank 51; Just be up and down shape relatively with fixed jaw 32, its upper limb place is flat to be provided with a sliding surface 521, and these sliding surface 521 upper edge fore-and-aft directions are concaved with the guide groove 522 that has desired depth together; In addition, jaw portion 52 is drilled with a pin-and-hole 523 that penetrates in the guide groove 522 in side edge.

The pawl unit 60 of can moving has one and is slidingly installed in clip jaw 61 on jaw portion 52 sliding surfaces 521, one and wears clip jaw 61 and make the flexible member 63 that spacing spacer pin 62 and can push away as bullet towards handle 31 directions clip jaw 61; This clip jaw 61 is blocks of the slightly T-shaped shape of section; The edge place convexes with a hock portion 611 above that, and this hock portion 611 can jointly carry out clip to nut 100 with mouth part 36, and the edge of 611 pairs of nut 100 clampings of hock portion is to have defined one second concave point 612; Second

concave point

612 and 37 of first concave points are formed with a line L2; This line L2 is the (see figure 7)s that are parallel to each other with the axis L1 of threaded shank 51 just, makes the present invention when the nut 100 to different size carries out clip, can guarantee that movable jaw 50 is in the process of moving up and down; Mouth part 36 and hock portion 611 can both remain on the position of normal blocking nut 100; Clip jaw 61 is stretched at lower edge and is provided with the slide plate portion 613 that can be inserted in the guide groove 522, and these slide plate portion 613 upper edge fore-and-aft directions offer a strip hole 614, and spacer pin 62 can be worn to strip hole 614 after being inserted in by pin-and-hole 523; This flexible member 63 is nested with in strip hole 614; The one of which end is butted at strip hole 614 inwalls, and the other end is then butted on spacer pin 62, provides clip jaw 61 to have the strength that pushes away towards handle 31 direction bullets whereby.

More than be the general introduction of each member shape of ratchet-driven adjustable spanner of the present invention and interblock space kenel, then, effect statement as back that action of the present invention and expection can be reached be described again:

Referring to shown in Figure 7; When the user will carry out the switching action to a nut 100; At first with the mouth part on the fixed jaw 32 36 by being against the edge of nut 100; Operation adjustment spiral shell spare 40 carries out spiral shell again changes, and can adjust movable jaw folder 50 whereby and move up and down, and makes the clip jaw 61 on the movable jaw 50 successfully carry out clamping to nut 100 corners.

Referring to shown in Figure 8, the user can make mouth part 36 and clip jaw 61 clamping jointly live nut 100 to handle 31 switching in a clockwise direction of wrench body 30, so can drive nut 100 and rotate an angle toward the clockwise direction.

Referring to shown in Figure 9; When the user will transfer back to the original place with wrench body 30; Need wrench body 30 not detached out from nut 100; Only need taken advantage of a situation handle 31 and rotated in a counter-clockwise direction, and nut 100 outer weekly assemblies push up naturally and move back this clip jaw 61, make mouth part 36 and clip jaw 61 centres have enough spaces to avoid this nut 100.

Referring to shown in Figure 10; After treating that wrench body 30 transfers back to the original place; Clip jaw 61 is because receive the butted effect of flexible member 63, and the position, corner that can rebound and fasten nut 100 returns back to the state of Fig. 7 again; Above-mentioned so repeatedly action, the user just can carry out switching to nut 100 uninterruptedly.

Referring to shown in Figure 11; The present invention can carry out switching to the nut of different size size, and when the mouth part 36 on the fixed jaw 32 clipped another nut 200, spiral shell spare 40 starts that are adjusted of movable jaw 50 can be moved toward another nut 200 directions; Make clip jaw 61 be able to contact the position, corner of another nut 200 of clamping; At this moment, line L2 and axis L1 remain keeping parallelism, make the nut 200 of another kind of specification also can successfully accept mouth part 36 and the 61 engaging clampings of clip jaw.

Referring to shown in Figure 12; When the present invention carries out the clamping switching to another nut 200 of different size; Use identical springing know-why, when wrench body 30 was done counterclockwise to rotate, clip jaw 61 can be accepted another nut 200 and make top deactuate work; Make the present invention when the nut 200 of clamping different size, still have the continual service advantages of continuous switching.

In sum; Ratchet-driven adjustable spanner of the present invention mainly is in order to solve the problem that general activity spanner 10 and ratchet spanner 20 uses, and technological means of the present invention mainly is to be utilized in to be slidingly equipped with a movably clip jaw 61 on the movable jaw 50, and it is butted that clip jaw 61 receives a flexible member 63; Has the strength of replying towards handle 31 directions; Clip jaw 61 can be made the springing kenel of similar ratchet spanner to nut 100 (200) whereby, makes the present invention under the state that does not detach nut 100 (200), reach the continual advantage of continuous switching; Quite quick and convenient in the operation; In addition, activity jaw 50 of the present invention can adjust mobile in response to the size of nut 100 (200), makes the present invention can be applicable to that more the nut 100 (200) of the various different specification sizes of switching uses.

Claims

1. ratchet-driven adjustable spanner; Include a wrench body, an adjustment spiral shell spare and a movable jaw; This wrench body has handle and fixed jaw that is connected with at place, handle the place ahead of a definite length extended; This adjustment spiral shell spare axle is located at place, handle the place ahead; Its periphery has one section thread segment, these movable jaw anchor clamps have one be set in handle the place ahead place with adjust spiral shell spare thread segment mutually the threaded shank that connects of Nie and one be connected with the jaw portion that is relative shape in threaded shank the place ahead and fixed jaw, it is characterized in that:

This place, wrench body fixed jaw inside edge is provided with one and has the mouth part that turning angle supplies a nut of clip, and the angle of this mouth part has defined one first concave point;

The jaw portion upper limb place of this activity jaw is provided with a guide groove along fore-and-aft direction; And

One group of pawl unit of can moving; Has a clip jaw and the flexible member that the clip jaw is pushed away towards handle direction bullet that is slidingly installed on the movable jaw guide groove; This clip jaw upper limb place is provided with one and jointly nut is done the hock portion of clip with mouth part; The edge of this hock portion clamping nut is to have defined one second concave point, and the line between second concave point and first concave point and the axis of threaded shank are to be parallel to each other.

2. ratchet-driven adjustable spanner as claimed in claim 1; It is characterized in that: this pawl unit of can moving includes one and is installed in the jaw portion clip jaw is made spacing spacer pin; Clip jaw lower edge is provided with a slide plate portion of being inserted in the guide groove; Offer a strip hole that supplies spacer pin to penetrate in this slide plate portion, flexible member be inserted in the strip hole spacer pin is done butted.