CN102554836A

CN102554836A - Quick adjustable spanner

Info

Publication number: CN102554836A
Application number: CN2010105979284A
Authority: CN
Inventors: 黄旭东
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-21
Filing date: 2010-12-21
Publication date: 2012-07-11

Abstract

The invention relates to a quick adjustable spanner, which comprises a spanner body, a movable spanner head, a toothed rail, a toothed block, a spring, an adjusting key, a screw and a dowel. A fixed spanner head is arranged at the front end of the spanner body, a handle is arranged at the rear end of the spanner body, the movable spanner head is slidably fittingly connected with the spanner body in a concave and convex key groove manner, the toothed block and the spring are disposed in the movable spanner head, one end of the adjusting key penetrates through a through hole positioned at the bottom of a groove of the movable spanner head from the outer side of the movable spanner head and is inserted into a connecting hole of the toothed block, so that the toothed block and the spring are limited in the groove of the movable spanner, teeth are disposed on one side of a key groove of the spanner body, and teeth of the toothed block in the movable spanner head, the spring and the adjusting key match with each other. Accordingly, the movable spanner head can freely move in the key groove of the spanner body, and a self-locking function of the movable spanner head is simultaneously realized.

Description

The quick adjustment adjustable wrench

Technical field

The invention belongs to a kind of hand-operated tools, relate in particular to a kind of quick adjustment adjustable wrench.

Background technology

Adjustable wrench is one of a kind of instrument that the most generally uses in the hand-operated tools, and the operator can regulate use within the specific limits according to the nut of different specification size.The most modes that adopt tooth bar to cooperate of existing adjustable wrench with worm gear; Need rotate worm gear with the adjustable wrench of this fit system manufacturing frequently when the bolt of rotation different size or the nut and pull a mouthful folding with adjusting; Governing speed is slow; Skid easily, operate dangerously, bolt after being rotated or nut angle can receive damage in various degree.

Summary of the invention

In order to overcome the deficiency of existing adjustable wrench; The invention provides a kind of quick adjustment adjustable wrench, this adjustable wrench has not only kept all functions of existing adjustable wrench, and can carry out opening apace and regulate; Skidding can not take place in movable jaw when swivel bolt and nut; Clamping is firm, not easy damaged bolt or nut, and handling safety is reliable.

Be to realize above-mentioned purpose, the present invention has adopted following technical scheme: a kind of quick adjustment adjustable wrench, and said spanner is formed by pulling body, movable jaw, rack rails, tooth piece, spring, adjusting key, screw, pin; The front end of pulling body is fixing spanner, and the rear end of pulling body is a handle, and the piece-holder face is fixedly arranged on the spanner; The piece-holder face is arranged on the movable jaw, pulls on the body contiguous fixedly spanner one side and be provided with key and groove, the groove side with pull the body key and link to each other; Be provided with rack rails in the groove, rack rails one side is provided with connecting hole, pulls the body bottom portion of groove simultaneously and pulls the body key side that links to each other and be provided with connecting hole and match with the rack rails connecting hole; Screw passes and pulls in the connecting hole that the body connecting hole inserts rack rails from pulling external side, with rack rails be fixed on said pull form in the body groove that a side has a tooth pull the body keyway, movable jaw is provided with keyway and key; Be positioned at the longitudinal center line of pulling body and movable jaw keyway and the longitudinal center line of key and be parallel to each other, the movable jaw key inserts fixedly spanner keyway, simultaneously fixing spanner key insertion movable jaw keyway; Realize movable jaw and fixedly utilize the sliding connection of concavo-convex keyway mode between the spanner that be provided with the protrusion piece in one side direction keyway inboard, said movable jaw keyway opening upper edge, said protrusion piece fastens the said body key of pulling and prevents that movable jaw from coming off from pulling body; Said movable jaw key is provided with an open recesses, and the two ends of groove median surface are curved surface, is positioned at bottom portion of groove and is provided with an of bonding through hole; Said tooth piece is that end both sides are curved surface, and the other end has the four bank or ridge of teeth, and the geomery of curved surface and the median surface of said open recesses match fully; Said tooth piece two ends are in the side of curved surface and are provided with spring eye, the shape and size of said tooth piece teeth and saidly pull rack rails teeth fixing in the body keyway and cooperatively interact, and the side between said tooth piece teeth one end and said spring eye is provided with connecting hole; Be used to connect adjusting key, spring one end is inserted in the spring eye of said tooth piece, the tooth piece has the of bonding through hole of connecting hole one side towards said movable jaw open recesses bottom; Said tooth piece teeth one end is towards said slot opening direction; Place the tooth piece in the said movable jaw open recesses together with spring, push the teeth end of tooth piece, from the movable jaw outside adjusting key is connected an end and insert in the tooth piece connecting hole that has been embedded in the open said movable jaw groove through said of bonding through hole; Tooth piece and spring are limited in the said movable jaw open recesses; Press down adjusting key, the tooth piece is submerged in the groove fully, movable jaw and tooth piece, spring are inserted to pulling the body key and pulling the body keyway in the lump; Said pulling in the body keyway is provided with a pin hole near the keyway opening part; To pin, it is fixing to embed in this hole, matches with spacer pin, and being positioned at the movable jaw key outside has an open recesses; When in movable jaw is being pulled the body keyway, sliding, the restraint spanner can not be along going out to pull body away from fixing spanner direction slippage.

Said rack rails teeth, as shown in Figure 8, angle≤90 that form towards the flank of tooth of rack rails end face 303 and rack rails other end 301 °.

Said spring is set between the median surface and tooth piece spring eye of movable jaw open recesses, and when not pushing adjusting key, the tension force of spring self promotes the automatic and said teeth interlock of pulling rack rails in the body keyway of tooth piece teeth; This moment, movable jaw can not move voluntarily; As shown in Figure 8, when not pressing down adjusting key, when directly fixedly spanner clamping face direction promotes movable jaw from the movable jaw lateral; The tooth piece can drive lower edge Y to oblique moved beneath in external force; Movable jaw can move to fixing spanner direction, pushes adjusting key downwards, and the tooth piece submerges in the open recesses of said movable jaw fully; Pass adjusting key simultaneously, movable jaw is moved freely in pulling the body keyway.

Quick adjustment adjustable wrench of the present invention and existing up-to-date adjustable wrench compared with techniques; Have simple in structure; It is accurate rapidly to regulate folding, and the skidding that has fundamentally solved adjustable wrench has prolonged service life of nut or bolt; Improved the security of operation, made adjustable wrench in maximum opening and minimum aperture scope, can both act on surface of the work to applied force efficiently.

Below in conjunction with accompanying drawing and embodiment the present invention is made further detailed description.

Description of drawings

Fig. 1 is a STRUCTURE DECOMPOSITION sketch map of the present invention;

Fig. 2 is the schematic perspective view after the present invention assembling;

Fig. 3 pulls body front groove structure sketch map for the present invention, and Fig. 1 pulls body E to view;

Fig. 4 pulls body structure sketch map for the present invention, and Fig. 1 pulls body F to view;

Fig. 5 is the present invention fixedly spanner groove and structural representation after rack rails combines;

Fig. 6 is the schematic perspective view of rack rails structure of the present invention;

Fig. 7 is a rack rails structural representation of the present invention, and the G of Fig. 6 is to view;

Fig. 8 cooperates sketch map for rack rails teeth of the present invention with tooth piece teeth, wherein rack rails be the H of Fig. 6 to view, the tooth piece is that the J of Figure 12 is to view;

Fig. 9 is a movable jaw keyway face structural representation of the present invention, and the movable jaw A of Fig. 1 is to view;

Figure 10 is a movable jaw medial surface structural representation of the present invention, and the movable jaw B of Fig. 1 is to view;

Figure 11 is a movable jaw lateral surface structural representation of the present invention, and the movable jaw C of Fig. 1 is to view;

Figure 12 is the stereogram of tooth piece of the present invention;

Figure 13 is the side structure sketch map of tooth piece of the present invention, and the tooth piece I of Figure 12 is to view;

Figure 14 is the stereogram after movable jaw of the present invention and tooth piece, spring, adjusting key are assembled;

Figure 15 is the floor map after movable jaw of the present invention and tooth piece, spring, adjusting key are assembled, and the K of Figure 14 is to view;

Figure 16 is the plane perspective view after the present invention assembles fully;

Figure 17 pulls the structural representation of body keyway face for another kind of the present invention;

Figure 18 pulls the three-dimensional exploded view after the body keyway arrangements is assembled for another kind of the present invention.

The specific embodiment

Embodiment 1:

A kind of quick adjustment adjustable wrench embodiment, referring to Fig. 1 to Figure 16, said spanner as shown in Figure 1 by pull body 1, movable jaw 2, rack rails 3, tooth piece 4, spring 5, adjusting key 6, screw 7, pin 8 is formed; The front end of pulling body is fixing spanner 101; The rear end of pulling body is a handle 102, and piece-holder face 103 is fixedly arranged on the spanner, and piece-holder face 201 is arranged on the movable jaw; Like Fig. 1, Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Figure 7; The side 302 that rack rails 3 is had a connecting hole places pulls in the body groove 104, and its end face 301 is touched with said side 106 of pulling the body groove fully mutually, like Fig. 3, Fig. 4, shown in Figure 5; The described body bottom portion of groove of pulling is provided with two connecting holes 107,108 near pulling body key 105 1 sides; Said screw 7 is passed connecting hole 107,108 and rack rails 3 is fixed on pulls in the body groove from pulling external side, form and pull body keyway 109, be provided with pin hole 110 near the bottom of keyway opening one side at the said body keyway of pulling; Like Fig. 1, Figure 10, shown in Figure 11, be extended with protrusion piece 204 in one side direction keyway inboard, said movable jaw keyway opening upper edge, said protrusion piece fastens to be pulled body key 105 and prevents that movable jaw 2 from coming off from pulling body; The longitudinal center line between the said keyway of pulling body and said movable jaw and the longitudinal center line of key are parallel to each other; Movable jaw key 202 inserts pulls body keyway 109; Pull body key 105 simultaneously and insert movable jaw keyways 203, realize movable jaw and pull and utilize the sliding connection of concavo-convex keyway mode between the body; Like Fig. 9, Figure 10, shown in Figure 11, said movable jaw key is provided with groove 205, and bottom portion of groove is provided with of bonding through hole 206, and the lateral surface of key is provided with limited impression 207; Like Figure 12, shown in Figure 13, tooth piece 4 is four bank or ridge, and an end is provided with teeth 401, and an end of teeth is provided with spring eye 402 dorsad, and the median surface that is positioned at said teeth and spring eye is provided with connecting hole 403; Like Fig. 9, Figure 12, Figure 13, shown in Figure 15; Spring 5 one ends are inserted in the spring eye 402 of said tooth piece; Said tooth piece has the of bonding through hole 206 in the facing movament spanner groove 205 of connecting hole 403; The teeth end is inserted said movable jaw groove with said tooth piece together with spring towards the opening direction of said groove, pushes to movable jaw groove median surface direction at teeth one end of said tooth piece; Link with adjusting key 6 passes in the connecting hole 403 of the said tooth piece of of bonding through hole 206 insertions from the said movable jaw outside simultaneously; Said spring and tooth piece 3 are fixed in the said movable jaw groove, shown in figure 14, be the stereogram after movable jaw and said tooth piece, spring, the adjusting key assembling; Shown in figure 14; To pushing said adjusting key, said tooth piece will submerge in the said movable jaw groove fully along Z, and insert movable jaw key 202 and keyway 203 to pulling body key 105 and pulling body keyway 109 this moment; Insert in the said pin hole spacer pin 8 fixing then; Like Fig. 2, shown in Figure 16, said pin matches with said movable jaw stopper slot 207, limits said movable jaw towards coming off away from fixing spanner 101 clamping faces 103 directions.

Being fixed on the teeth angle of pulling rack rails 3 in the body keyway described in the present embodiment is 45 degree; For making the unidirectional smoothness that is slidingly matched between said tooth piece teeth and rack rails teeth; As shown in Figure 8; Plane treatment is done on said rack rails teeth top, and the teeth face is towards angle≤90 that the flank of tooth of rack rails end face 303 1 sides and rack rails end face 301 form °.

As shown in Figure 8, the teeth shape of said tooth piece and angle and be positioned at said rack rails teeth and cooperatively interact.

Movable jaw groove 205 described in the embodiment is open recesses, is provided with tooth piece and spring in the groove, and there is an adjusting key 6 in the said movable jaw outside; The of bonding through hole that adjusting key one end passes bottom portion of groove inserts the connecting hole of said tooth piece, and tooth piece and spring are limited in the said groove, and the connection between them cooperates; Movable jaw has been had said pulling unidirectionally in the body keyway to be moved, is free to slide and by the function of locking; Unidirectional mobile principle is: as shown in Figure 8, when the obstructed key that overregulates promotes the movable jaw lateral when fixedly spanner clamping face 103 moves, because tooth piece teeth are towards the flank of tooth of directions X and the root face formation angle greater than 90 °; Under the effect of applied force; The cooperation of spring in addition makes said tooth piece edge oblique below Y to moving, and has formed the unidirectional mobile function of said movable jaw; The principle that is free to slide is: the height of said tooth piece is less than the degree of depth of groove; The bottom of tooth piece is provided with spring; Like Figure 14, shown in Figure 15; When press...with one's finger adjusting key 6 and along Z when pressing down said adjusting key, said tooth piece can submerge in the said groove fully, stirs adjusting key about simultaneously movable jaw 2 is moved freely in pulling body keyway 109 together with the tooth piece and the spring that embed wherein; The principle of latch functions is: like Fig. 8, shown in Figure 14; After discharging adjusting knob, under the spring tension effect, the teeth of tooth piece can match with the teeth of said rack rails automatically; When the movable jaw clamping face to when fixedly the spanner direction is stressed; The tooth piece should move along the R direction, because tooth piece teeth left flank forms≤90 ° of angles with cooperating with rack rails end face 301 of rack rails teeth, has limited movable jaw to moving away from said fixedly spanner clamping face direction.

Embodiment 2:

A kind of another embodiment of quick adjustment adjustable wrench is like Figure 17, shown in 18, in order to reduce assembling parts; In the present embodiment teeth above the aforementioned rack rails directly are processed in and pull body keyway 109 inboards; The screw 7 of having save rack rails 3 and being used for fixing said rack rails, miscellaneous part is constant, and the shortcoming of this structure is when the teeth excessive wear in the keyway; Cause the teeth of rapid wear portion to replace, whole adjustable wrench can't be used.

Claims

1. quick adjustment adjustable wrench, said spanner is formed by pulling body, movable jaw, rack rails, tooth piece, spring, adjusting key, screw, pin, and the front end of pulling body is fixing spanner; The rear end of pulling body is a handle, and the piece-holder face is fixedly arranged on the spanner, and the piece-holder face is arranged on the movable jaw; Pull body and be provided with key and keyway, movable jaw is provided with keyway and key, is positioned at the longitudinal center line of pulling body and movable jaw keyway and the longitudinal center line of key and is parallel to each other; The movable jaw key inserts fixedly spanner keyway, and fixedly the spanner key inserts the movable jaw keyway simultaneously, realizes movable jaw and fixedly utilizes the sliding connection of concavo-convex keyway mode between the spanner; Be provided with the protrusion piece in one side direction keyway inboard, said movable jaw keyway opening upper edge, said protrusion piece fastens the said body key of pulling and prevents that movable jaw from coming off from pulling body, is characterized in that; The said interior side of body keyway of pulling is provided with teeth; Said movable jaw key is provided with an open recesses, is provided with the tooth piece in the groove, and said tooth piece is a four bank or ridge; Be arranged with teeth at tooth piece one end; Be provided with spring eye with the opposing end of teeth, spring is located between tooth piece and the groove median surface, and said movable jaw bottom portion of groove is provided with through hole; One end of adjusting key passes through hole insertion tooth piece one side from the said movable jaw outside connecting hole is limited in tooth piece and spring the groove of movable jaw key, presses down adjusting key from the movable jaw outside tooth piece is moved up and down in said groove.

2. according to claim 1. the quick adjustment adjustable wrench is characterized in that the said body bottom portion of groove of pulling is provided with pin near the slot opening place.

3. according to claim 1. the quick adjustment adjustable wrench is characterized in that one side is provided with the hole in the middle of said tooth piece teeth one end and said tooth piece spring eye one end.

4. according to claim 1. anti-skidding open-end wrench is characterized in that the said movable jaw outside is provided with groove.