CN205904924U - Adjustable wrench - Google Patents

Abstract

The utility model relates to an adjustable wrench, it is adjustable to have solved the current wrench opening of living size, and nevertheless need temporarily break away from the work piece could turn around to again, the cover is put and is carried out the rotating, the defect of troublesome poeration, including pulling the body and work portion, the spanner still includes a directional work portion and a telescopic push rod, formation work piece clamping space between the tip of push rod and the work portion inside, and this clamping space is provided with slidable clamping unit, and clamping unit is connected with go back to the mechanism of contracting, and clamping unit's slip direction is feasible: clamping unit slides and loosens and presss from both sides tight work piece during the spanner gyration. The push rod can stretch out and draw back for clamping space's the tight size of clamp can change, thereby the applicable specification of change work portion makes the adaptable multiple specification work piece operation needs of a spanner, clamping unit can slide, and clamping unit unclamped the work piece when just gliding orientation can make the spanner gyration, and the spanner need not break away from with the work piece like this, can realize gyration in the other direction, convenient operation, and work efficiency improves.

Description

Adjustable spanner

Technical field

This utility model is related to a kind of hand-operated tools, especially a kind of adjustable spanner.

Background technology

Spanner is a kind of conventional installation and extracting tool.Twist bolt, screw, nut and other spiral shells using lever principle Stricture of vagina tightly holds bolt or the opening of nut or the hand toolss of trepanning firmware.Whether adjustable according to opening, spanner is divided into two kinds substantially, One kind is fork spanner, and another kind is adjustable wrench.The one or both ends of fork spanner are formed with the opening of fixed dimension, and a spanner cannot Adapt to plurality of specifications job demand, therefore can make plurality of specifications, complex work needs to carry many.The opening of adjustable wrench Width can be adjusted in the range of certain size, can twist bolt or the nut of different size.

In most use environments, handle can only rotate less angle and turn it is therefore desirable to carry out continuous several times to workpiece Dynamic, just can screw or unscrew.Between turn twice, need be deadlocked by spanner opposite direction revolution it is common practice to Spanner is departed from workpiece, after revolution, puts turn again again, this operational approach is inconvenient, and turn is less efficient, sometimes Due also to limited by different areas of activity, needing adjustment spanner could be nested with turn again.

Spanner with ratcher function can simplify this operation, between turn, need not depart from spanner be from workpiece Rotatable.But the openings of sizes of common ratchet spanner is fixed it is impossible to be adjusted, and ratchet spanner has corresponding fixed gauge Lattice, to mate the workpiece of different size, therefore generally require to carry many, very inconvenient.If by ratchet structure and opening It is adjustable that difficulty again can be than larger when combining.

Content of the invention

It is adjustable that this utility model solves existing adjustable wrench openings of sizes, but need to be temporarily disengaged from workpiece and could turn round, and Again it is nested with and carries out turn, operate cumbersome defect, provide a kind of adjustable spanner, openings of sizes is adjustable, and without disengaging Workpiece gets final product fast rotation, simple to operate, improves work efficiency.

It is bigger than normal that this utility model also solves existing adjustable wrench nose shape, can not after departing from workpiece revolution in small space Quickly again it is nested with turn, operates far less convenient defect, a kind of adjustable spanner is provided, set postpones can be fast without departing from workpiece Speed revolution, is affected little by work space.

This utility model solves its technical problem and be the technical scheme is that a kind of adjustable spanner, including pulling body and work Make portion, spanner also includes a sensing work department telescopic push rod, between the end of push rod and work department inside, form workpiece Clamping space, this clamping space is provided with slidably clamping part, and clamping part is connected with cam mechanism, the cunning of clamping part Dynamic direction makes: during spanner revolution, clamping part slides and unclamps the workpiece of clamping.Between the end of push rod and work department inwall Form Workpiece clamping space, during use, clamping space is placed on workpiece, push rod can stretch so that the clamping of clamping space Size can change, thus change work department is suitable for specification so that the openings of sizes of spanner is adjustable, a spanner is suitable for many Planting size workpiece operation needs；Clamping part can slide, and the direction slided can make clamping part during spanner revolution unclamp Workpiece, such spanner departs from without with workpiece, you can realize opposite direction revolution, easy to operate, work efficiency improves；Revolution puts in place Afterwards, clamping part resets in the presence of cam mechanism again, can realize again clamping.

Preferably, cam mechanism adopts spring as retraction power part, the direction of spring reset is clamping part Retraction direction, overcomes the direction of the active force of spring to be the glide direction of clamping part.

Preferably, cam mechanism includes spring and block, one end of block is abutted with one end of spring, block another End is connected with work department, and the other end of spring and clamping part abut against.

Preferably, clamping part is the slide block being arranged in work department, or it is disposed on the pushing block in push rod end portion, or Person is including the slide block being arranged in work department and the pushing block being arranged at push rod end；The position phase of the position of slide block and push rod Right, slide block is in the position of work department upper push-rod sensing.

Preferably, slide block towards pushing block side be slide block clamping side, pushing block towards slide block side be pushing block folder Tight side, slide block clamping side is contacted with side surface of workpiece, and pushing block clamping side is contacted with side surface of workpiece, slide block clamping side It is spaced 180 ° with pushing block clamping side opposite piece.

Preferably, slide block clamping side is provided with helical teeth, the incline direction of helical teeth points to the direction that slide block skids off；Slide block It is arranged to inclined-plane towards one end of slide block retraction, one end that pushing block bounces back towards pushing block is arranged to inclined-plane, and two inclined-planes are staggered.

Preferably, being provided with chute in the end of work department outermost end, the one end open of chute, another end seal of chute Close, chute is inserted into slide block and is fitted with the blind end of chute by cam mechanism control, the inner side edge of the corresponding chute of work department is Inner concavity, slide block is in this position formation side standing shape.

Preferably, pulling the push rod groove that internal portion is provided with connection work department along its length, push rod is positioned over push rod groove Interior, it is flexible that push rod adopts screw-driven to realize.

Preferably, teeth groove is provided with the two side of push rod groove, at push rod groove internal spline, it be furnished with worm screw, the end of push rod With worm screw rotary type grafting, at worm screw axle center, it is provided with connecting hole, the inwall of connecting hole is provided with inner groove, inner groove is along even Connect the setting in a week of in the hole wall, the end of push rod is extended with connecting post, is inserted with spring and bayonet lock, connecting post and connecting hole in connecting post Grafting, bayonet lock is coordinated with inner groove.

Preferably, respectively there is a work department at the two ends pulling body, the two ends of push rod are respectively facing a work department, or push away Bar is two, and the end of a push rod corresponds to a work department；Setting clamping part and cam mechanism, two works in each work department Make the specification phase linking of the workpiece of portion and slide block adaptation；Or work department only one of which and be in the one end pulling body, pulls the another of body One end is conventional sleeve spanner structure.

The beneficial effects of the utility model are: form Workpiece clamping space between the end of push rod and work department inwall, make Used time, clamping space is placed on workpiece, and push rod can stretch so that the grip dimensions of clamping space can change, thus changing Become work department is suitable for specification so that the openings of sizes of spanner is adjustable, and a spanner is suitable for plurality of specifications workpiece operation needs； Clamping part can slide, and slide direction can make spanner revolution when clamping part unclamp workpiece, such spanner without with Workpiece departs from, you can realize opposite direction revolution, easy to operate, work efficiency improves；After revolution puts in place, clamping part is in retraction machine Again reset in the presence of structure, can realize again clamping.

Brief description

Fig. 1 is a kind of structural representation of this utility model；

Fig. 2 is a kind of cross-sectional end view of this utility model；

Fig. 3 is a kind of exploded perspective view of this utility model；

Fig. 4 is a kind of this utility model turn state schematic diagram；

Fig. 5 is a kind of this utility model worm screw connection diagram；

Fig. 6 is this utility model second structural representation；

In figure: 1, pull body, 2, work department, 3, workpiece set area, 4, slide block, 5, pull hole, 6, workpiece, 7, pushing block, 8, pin, 9, Push rod, 10, teeth groove, 11, worm screw, 12, spring, 13, block, 14, chute, 15, groove, 16, push rod groove, 17, connecting post, 18, Spring groove, 19, rib, 20, bayonet lock, 21, connecting hole, 22, inner groove, 23, conventional sleeve spanner structure.

Specific embodiment

Below by specific embodiment, and combine accompanying drawing, the technical solution of the utility model is made more specifically Bright.

Embodiment 1: a kind of adjustable spanner (referring to Fig. 1 Fig. 2), pull body 1 including long handle, pull the two ends of body integrally formed with Annular work department 2, work department inner ring forms workpiece set area 3, and workpiece set area has the area being large enough to hold workpiece.Pull internal Portion is provided with flexible push rod 9, and towards in work department ring, the work department position relative with push rod end is provided with for the end of push rod Slidably slide block 4, slide block is connected with cam mechanism, and slide block two faces relative with push rod end constitute Workpiece clamping face.

Concrete assembling structure is as shown in Figure 3: pulls and is provided with push rod groove 16 in body axis direction, push rod groove inwall is along axis Direction is provided with prominent guide rail, the rectangular in cross-section of guide rail.The both sides of push rod are provided with guide groove, the rectangular in cross-section of guide groove, When push rod is in push rod groove, guide groove is matched with guide rail.The centre pulling body is provided with the teeth groove 10 of internal tooth arrangement, teeth groove Place is furnished with worm screw 11(referring to Fig. 5), the axial length of worm screw is less than the length of teeth groove distribution.It is provided with insertion at the axle center of worm screw Connecting hole 21, connecting hole inwall is provided with inner groove 22 near the position of end.Push rod is two, and two push rods are respectively at snail The end positions of bar, the end that push rod points to worm screw is provided with connecting post 17, and connecting post is inserted into connection in the hole and forms grafting knot Structure.Through hole is provided with the diametric(al) of connecting post, insertion in the hole is placed with spring 12 and bayonet lock 20, two cards joined by a spring Pin, bayonet lock is in the two ends of spring, and after connecting post is inserted into connection in the hole, bayonet lock stretches out connecting post periphery under the action of the spring And pushing in inner groove, the diameter of bayonet lock is adapted with the width of inner groove.Push rod is fluted away from one end setting of worm screw 15, groove has been inserted into pushing block 7, and groove is in horizontally disposed, and groove and guide groove are in same plane.The both sides of push rod respective slot Two pin-and-holes are respectively arranged with wall, each pin-and-hole has been inserted into a pin 8.Pushing block includes clamping section and department of assembly, clamping section It is in outside push rod end, department of assembly is inserted in groove, department of assembly is in the class s shape with twice and the cotter slot of bayonet fittings, Wherein the bottom of the cotter slot of clamping section is provided with projection, this cotter slot is also placed with spring, one end of spring is nested with On projection, the other end of spring is abutted against with corresponding pin, and spring and bayonet fittings become the cam mechanism of pushing block.Pushing block presss from both sides The width in tight portion is more than the width of department of assembly equal with the width of push rod.The end face of push rod is inclined with the length direction phase of push rod Tiltedly, the thickness of pushing block clamping section is change structure, and the thickness change of pushing block makes the pushing block outside clamping section clamp face and push rod Length direction perpendicular.It is glide direction that pushing block compression spring moves towards the pin direction that spring abuts, and work department corresponds to The side setting of pushing block glide direction is jagged, and this breach just gives pushing block enough sliding spaces.Cunning is deviated from pushing block The end face in dynamic direction is inclined-plane, and the angle on this inclined-plane is just easy to workpiece (hex screw) seamed edge and is crossed, thus with minimum work Zuo Tao area uses (referring to Fig. 4) come the workpiece to adapt to maximum.The cotter slot cooperation of two pins and department of assembly so that pushing block slide and Relatively fixed position is all kept, pushing block will not produce relative to push rod and rotate in retraction.The distalmost end of work department is towards pushing block Inner side is provided with chute 14, and chute is perpendicular with the length direction pulling body, chute one end open, and one end is closed, and slide block is inserted into In chute, the length of the chute that the length of slide block is exposed more than work department inner surface, slide block moves towards one end of chute opening For the glide direction of slide block, it is the retraction direction of slide block inside slide retraction to chute.The close chute inner bottom part of work department What place was provided with insertion work department two side plane pulls hole 5, and the side of slide block is provided with spring groove 18, and one end of spring groove is spacious Mouthful, the other end of spring groove has rib 19, and the height of rib is less than in the depth of spring groove, spring groove and places spring 12 block 13, the c-shape shape of block, the two ends of block are the vertical part of vertical middle part, the thickness of block pars intermedia and the height of rib it And suitable with the depth of spring groove so that when block is positioned in spring groove the lateral surface of block and the lateral surface of slide block equal Together.When block is placed in spring groove, a vertical part is in spring groove and can move in spring groove, and another vertical part is in spring Groove is outer and snaps onto to pull in the hole and formed and is located by connecting.When slide block is inserted in chute, rib institute is at one end towards chute inner bottom Portion, when spring is placed, rib is withstood in one end of spring, and the other end of spring reaches that spring groove is uncovered outer and the vertical part with block Inner surface abuts against.The inner side edge of work department is inner concavity at chute place position, when slide block is inserted in chute, slide block court It is exposed to outside work department inner side edge to the side of pushing block, slide block is slide block clamping side towards the side of pushing block, and slide block clamps side Helical teeth is provided with face, the incline direction of helical teeth points to the direction that slide block skids off.One end that slide block bounces back towards slide block is arranged to Inclined-plane, the inclined-plane of slide block is staggered with the inclined-plane of pushing block.Pushing block clamping section is pushing block clamping side towards the end face of slide block, slide block Clamping side is parallel to each other with pushing block clamping side, in the present embodiment, the glide direction of slide block and the glide direction of pushing block and work Part clamping face is parallel.The lateral location pulling body upper push-rod groove is provided with scale, and push rod is provided with cue mark, scale and finger Indicating note cooperation is for determining the specification of workpieces being adapted between slide block clamping side and pushing block clamping side.

Rotary worm, so that worm screw is moved in vivo pulling, promotes push rod to move along push rod groove, thus adjusting in moving process The distance between section pushing block clamping side and slide block clamping side, according to the cooperation of scale and cue mark, are suitable for work at regulation Workpiece is then nested into workpiece set area, it is equal that slide block clamping side and pushing block clamping side clamp workpiece by the requirement of part specification Two faces (as shown in Figure 1) of row, then rotate clockwise and pull body, and the power that slide block and pushing block are subject to is directed to the side each bouncing back To slide block and pushing block all keep being relatively fixed, and now can carry out screwing operations to workpiece.Rotate an angle after, need by Spanner opposite direction is turned round, and now without departing from workpiece, directly spanner is rotated counterclockwise (referring to Fig. 4), now, slide block and pushing block The active force being subject to is directed to glide direction, and, with the force compression spring overcoming spring, slide block clamps side for slide block and pushing block Face is staggered with pushing block clamping side, and work department opposite piece rotates, the inclined-plane of inclined-plane from slide block of the seamed edge of workpiece and pushing block Cross, until revolution puts in place, now workpiece and inclined-plane are separated, and slide block clamping side and pushing block clamping side are in the effect of spring Lower retraction resets, and slide block clamping side and pushing block clamping side continue clamping workpiece, can rotate clockwise again, whole process is no Spanner need to be departed from workpiece, original place is rotatable, simple to operate, efficiency improves.

Embodiment 2: a kind of adjustable spanner, difference from Example 1 is work department only one of which, pulls the other end of body It is directly connected to conventional sleeve spanner structure 23(referring to Fig. 6), now push rod also only one, worm screw only has one end to insert with push rod phase Connect, the half portion pulling body matching convention socket wrench structure is solid construction.Remaining structure is with reference to embodiment 1.

Embodiment described above is two kinds of preferred version of the present utility model, and not this utility model is made with any shape Restriction in formula, also has other variants and remodeling on the premise of without departing from the technical scheme described in claim.

Claims (10)

1. a kind of adjustable spanner, including pulling body and work department it is characterised in that spanner includes a sensing work department telescopic Push rod, forms Workpiece clamping space between the end of push rod and work department inside, this clamping space is provided with and slidably clamps Part, clamping part is connected with cam mechanism, and the glide direction of clamping part makes: during spanner revolution, clamping part slides and pine Open the workpiece of clamping.

2. adjustable spanner according to claim 1 it is characterised in that cam mechanism adopt spring as retraction power part, The direction of spring reset is the retraction direction of clamping part, overcomes the direction of the active force of spring to be the slip side of clamping part To.

3. adjustable spanner according to claim 1 and 2 is it is characterised in that cam mechanism includes spring and block, block One end is abutted with one end of spring, and the other end of block is connected with work department, and the other end of spring and clamping part abut against.

4. adjustable spanner according to claim 1 is it is characterised in that clamping part is the slide block being arranged in work department, or Person is disposed on the pushing block of push rod end, or includes the slide block that is arranged in work department and be arranged at pushing away of push rod end Block；The position of slide block is relative with the position of push rod, and slide block is in the position of work department upper push-rod sensing.

5. adjustable spanner according to claim 4 it is characterised in that slide block towards pushing block side be slide block clamping side, Pushing block is pushing block clamping side towards the side of slide block, and slide block clamping side contacts with side surface of workpiece, pushing block clamping side and Side surface of workpiece contacts, and slide block clamping side and pushing block clamping side opposite piece are spaced 180 °.

6. adjustable spanner according to claim 5 is it is characterised in that slide block clamping side is provided with helical teeth, the inclination of helical teeth The direction that slide block skids off is pointed in direction；One end that slide block bounces back towards slide block is arranged to inclined-plane, pushing block bounce back towards pushing block one End is arranged to inclined-plane, and two inclined-planes are staggered.

7. the adjustable spanner according to claim 1 or 2 or 4 or 5 or 6 is it is characterised in that in the end of work department outermost end It is provided with chute, the one end open of chute, the other end closing of chute, chute is inserted into slide block and is controlled and slided by cam mechanism The blind end laminating of groove, the inner side edge of the corresponding chute of work department is inner concavity, and slide block forms side standing shape in interior recess.

8. the adjustable spanner according to claim 1 or 2 or 4 or 5 or 6 sets along its length it is characterised in that pulling internal portion It is equipped with the push rod groove of connection work department, push rod is positioned in push rod groove, it is flexible that push rod adopts screw-driven to realize.

9. adjustable spanner according to claim 8 is it is characterised in that be provided with teeth groove, push rod groove on the two side of push rod groove Be furnished with worm screw at internal spline, the end of push rod and worm screw rotary type grafting, be provided with connecting hole at worm screw axle center, connecting hole interior Wall is provided with inner groove, and along the setting in a week of connecting hole inwall, the end of push rod is extended with connecting post, connecting post interpolation to inner groove There are spring and bayonet lock, connecting post and connecting hole grafting, bayonet lock is coordinated with inner groove.

10. the adjustable spanner according to claim 1 or 2 or 4 or 5 or 6 is it is characterised in that respectively there is a work at the two ends pulling body Make portion, the two ends of push rod are respectively facing a work department, or push rod is two, the corresponding work in end of a push rod Portion；The specification phase linking of the workpiece that setting clamping part and cam mechanism in each work department, two work departments and slide block adapt to；Or Person's work department only one of which and be in the one end pulling body, the other end pulling body is conventional sleeve spanner structure.