CN2853297Y

CN2853297Y - Wrench with quickly changed joint

Info

Publication number: CN2853297Y
Application number: CN 200520143339
Authority: CN
Inventors: 刘圳雄
Original assignee: Stanley Chiro International Ltd
Current assignee: Stanley Chiro International Ltd
Priority date: 2005-11-28
Filing date: 2005-11-28
Publication date: 2007-01-03
Anticipated expiration: 2015-11-28

Abstract

A spanner with instant switching interface comprises a spanner body, a pushing unit and an interface unit. The spanner body is provided with a bell socket component with a socket hole, the pushing unit is provided with a bolting component and a card stopper part on the bolting component. The bolting component can be fast inserted into the socket hole, the interface unit can be fixed through the card stopper part blocking into the backing ring, and the card stopper part is pressed the pushing unit to project out of the spanner body, pressing the pushing unit to fast release the interface unit and the spanner body, thereby achieving the purpose of altering different interfaces to fit different kinds of work.

Description

Spanner with quick change formula joint

Technical field

The utility model relates to a kind of spanner, particularly relates to a kind of spanner with quick change formula joint that can reach dismounting joint effect fast.

Background technology

Referring to shown in Figure 1, general spanner 10 has a handle body 11 usually, one is located at first of handle body 11 1 end places turns 12, and one be located at handle body 11 in addition the end place second turn 13, first turns a place in the middle of 12 offers a perforation 121 that is the plum blossom hole shape, this perforation 121 is fit to be used for the bolt (figure does not show) of the polygonal head shapes of switching, second turns 13 is provided with the opening 131 of a slightly rectangular groove shape by outer concave, this opening 131 is fit to be used for switching four angle heads or hexagon-headed bolt (figure does not show), and spanner 10 can carry out switching at different types of bolt whereby.

Above-mentioned spanner 10 structures have the function of normal switching really to bolt, but still have its restriction to exist in the use, the handle body 11 of general spanner 10 is usually with first, second turns 12,13 are one links to each other, perforation of offering on it 121 and perforate 131 sizes are fixing can't to be changed, therefore 10 of this spanners are fit to be used for the bolt of switching single size, if run into the bolt of other different sizes, this spanner 10 just can't carry out the switching operation smoothly, this moment, the user had to prepare in addition the spanner of many group different sizes, portably use quite trouble, and can increase extra instrument cost.

The utility model content

The utility model purpose is to provide the different connector units of a kind of winding fast to adapt to the spanner with quick change formula joint of different work demand.

The utility model provides a kind of spanner with quick change formula joint, include a wrench body, one pushes a unit and a connector unit, this wrench body has a socket part and by the outward extending shank part in socket part, the end of socket part is concaved with a sleeve joint hole, offer the installing hole that always passes to thoroughly in the sleeve joint hole on the outer peripheral face of socket part, this is pushed the unit and has a cover and be fixed on grommet in the installing hole, a but and pressing piece that is slidingly installed in the upper and lower displacement of grommet inside, this pressing piece upper end has a press section, the lower end has one and supports only head, this connector unit has one and is the driving head of being scheduled to profile, one by the extended bolt jointing part in driving head rear end, and one bullet be located at the clamping piece at bolt jointing part outer peripheral face place, this bolt jointing part just can be inserted in the sleeve joint hole of wrench body, this clamping piece can end head to supporting of pressing piece and upwards do the bullet top, and makes the press section protrude out the grommet outside.

Effect of the present utility model is to utilize clamping piece to snap in grommet pressing piece to be done butted, can allow connector unit combine with wrench body apace or breaks away from, and reaches the effect that is applicable to the different bolt operations of switching whereby.

Description of drawings

Fig. 1 is the stereogram of general spanner;

Fig. 2 is the exploded perspective view that the utlity model has spanner first preferred embodiment of quick change formula joint, illustrates that the utility model consists predominantly of a wrench body, and pushes a unit and a connector unit;

Fig. 3 is the combination stereogram of above-mentioned preferred embodiment;

Fig. 4 is the exploded view of above-mentioned preferred embodiment, illustrates that wrench body and connector unit are the situation of separating;

Fig. 5 is the cutaway view under Fig. 4 state, illustrates that wrench body has a sleeve joint hole, pushes the unit and has a grommet and a pressing piece, and connector unit has a bolt jointing part and a clamping piece;

Fig. 6 is the action diagram of above-mentioned preferred embodiment, illustrates that the connector unit bolt jointing part can be inserted in the wrench body sleeve joint hole, and clamping piece snaps in grommet can make connector unit combine fixing fast with wrench body, and clamping piece can be simultaneously to the upspring situation on top of pressing piece;

Fig. 7 is the action diagram of above-mentioned preferred embodiment, illustrates that the user utilizes finger to press down pressing piece, and pressing piece start clamping piece and grommet take off pulls, the situation that can make connector unit and wrench body break away from fast;

Fig. 8 is the exploded view of the utility model second preferred embodiment, but another connector unit of wrench body winding is described;

Fig. 9 is the exploded view of the utility model the 3rd preferred embodiment, but the another connector unit of wrench body winding is described.

The specific embodiment

Aforementioned and other technology contents, characteristics and effect about the utility model, below cooperate in the explanation of a plurality of preferred embodiments with reference to the accompanying drawings, can clearly present, the spanner that the utlity model has quick change formula joint will be elaborated below by most preferred embodiment and accompanying drawing:

Referring to Fig. 2, shown in Figure 3, the spanner that the utlity model has quick change formula joint includes a wrench body 20, and pushes a unit 30 and a connector unit 40 in first preferred embodiment, then, and after again the shape of above-mentioned member and combination situations being specified in.

Wrench body 20 has a socket part 21 and by socket part 21 outward extending shank parts 22, this socket part 21 is concaved with a sleeve joint hole 211 in the end face centre, be positioned at sleeve joint hole 211 outer side edges centre and have a chamfered section 212, in the present embodiment, this sleeve joint hole 211 is to be cubic rectangular opening, certainly the dealer also can make this sleeve joint hole 211 other non-circular void shapes, the place more offers the installing hole 213 that always passes to thoroughly in the sleeve joint hole 211 in the middle of 21 peripheries of socket part, this shank part 22 is extended with predetermined length, is available for users to hand and grips.

Pushing unit 30 has a cover and is fixed on grommet 31 in the installing hole 212, one build-in fixes on the locating part 32 in the grommet 31, a but and pressing piece 33 that is slidingly installed in grommet 31 inside upper and lower displacements, simultaneously referring to shown in Figure 5, this grommet 31 is urgent be inserted in form in the installing hole 212 fixing, its upper end has one can support the flange 311 that ends socket part 21, remain on the state on outstanding 21 surfaces, socket part in order to spacing grommet 31, grommet 31 inside are equipped with an axis hole 312 along the vertical direction, the place more is concaved with an embedding ditch 313 in the middle of being positioned at axis hole 312 inwalls, this locating part 32 is elements of C shape button, just but embedding is pulled and is fastened in embedding ditch 313, this pressing piece 33 is inserted in the axis hole 312 of grommet 31, its upper end has a press section 331, the lower end has one and support to end 332, the place then is concaved with an annular groove 333 in the middle of the periphery, and the space of this annular groove 333 can be inserted in for locating part 32, and this annular groove 333 has predetermined length, be subjected to locating part 32 by annular groove 333 and only support, can control the amplitude of pressing piece 33 upper and lower displacements.

Referring to Fig. 4, shown in Figure 5, connector unit 40 has one and is the driving head 41 of being scheduled to profile, one by the extended bolt jointing part 42 in driving head 41 rear ends, and one bullet be located at the clamping piece 43 at bolt jointing part 42 outer peripheral face places, in the present embodiment, this driving head 41 offers a plum blossom hole 411 at the place, centre, the applicable bolt element that comes the polygonal head shapes of switching, this bolt jointing part 42 is rectangular post shapes, just can be inserted in the sleeve joint hole 211 of wrench body 20, the place is concaved with a post hole 421 that can supply clamping piece 43 to be inserted in the middle of its periphery, this clamping piece 43 includes a clip head 431 and a spring 432, these clip head 431 peripheries have a flange 4311, bolt jointing part 42 is behind the 421 outboard peripheries rivetings of post hole, the meat that extrudes is thick just can be formed spacing to clip head 431 flanges 4311, this spring 432 is nested with can be done buttedly in post hole 421 to clip head 431 lower ends, makes clip head 431 have towards the strength of lateral direction springing.

More than for the utlity model has the spanner structure of quick change formula joint and the general introduction of shape, then, again the effect statement that combination kenel of the present utility model and expection can be reached as after.

Referring to shown in Figure 6, when the user will assemble wrench body 20 and connector unit 40, as long as allowing connector unit 40 bolt jointing parts 42 aim at wrench body 20 sleeve joint holes 211 directly is inserted in, the clamping piece 43 of connector unit 40 is when beginning to enter sleeve joint hole 211, can successfully compress to pass through sleeve joint hole 211 along chamfered section 212, when clamping piece 43 just moves to the position of pushing unit 30, clip head 431 be subjected to spring 432 upspring to, can protrude out in the axis hole 312 that snaps in grommet 31, connector unit 40 just can combine fixing apace with wrench body 20 whereby, and clip head 431 is when upwards snapping in axis hole 312, also can 332 do the bullet top, can make the press section 331 of pressing piece 33 upper ends protrude out grommet 31 outsides support ending of pressing piece 33 lower ends.

Referring to shown in Figure 7, when the user wants to change different connector unit, the user is as long as push downwards this press section 331 with finger, just the connector unit 40 that is fixed on the wrench body 20 can be removed, that is to say, but pressing down press section 331 starts support to end 332 and moves down, support ending 332 moves down clip head 431 roof pressures again, after clip head 431 and grommet 31 axis holes 312 being taken off pull, this moment, the user outwards extracted with another hand grip connector unit 40 again, this connector unit 40 just can be separated with wrench body 20 easily, as shown in Figure 5.

Referring to shown in Figure 8, the utility model is in second preferred embodiment, wrench body 20 can be assembled another connector unit 50, another connector unit 50 has a driving head 51, a bolt jointing part 52 and a clamping piece 53 equally, different with a last embodiment is, this driving head 51 is drive post 511 that middle installing one has the ratchet one-way function, and this drive post 511 is the suitable sleeve (figure does not show) of socket again, so as to adapting to the demand of various different operatings.

Referring to shown in Figure 9, the utility model is in the 3rd preferred embodiment, wrench body 20 can be assembled another connector unit 60, another connector unit 60 has a driving head 61, a bolt jointing part 62 and a clamping piece 63 equally, different with a last embodiment is, this driving head 61 has an opening 611 in the outside, can be fit to be used for the bolt element of switching four angle heads or turret head.

In sum, the spanner that the utlity model has quick change formula joint is the improvement of being done at the use problem of general spanner 10, technological means of the present utility model mainly is to utilize wrench body 20 that sleeve joint hole 211 is set to be inserted in fast for connector unit 40 bolt jointing parts 42, connector unit 40 is pulled into grommet 31 axis holes 312 that are fixed in the wrench body 20 by clamping piece 43 bullets again, just can allow connector unit 40 combine fixing fast with wrench body 20, and the user only needs with finger this pressing piece 33 to be pushed, just can allow connector unit 40 separate with wrench body 20 apace, so the utility model allows the user can indiscriminately ad. as one wishes change the connector unit 40 of different types, 50,60, whereby applicable to the switching different types, the bolt of size, quite convenient in the use, can effectively promote the efficient of work.

Claims

1. the spanner with quick change formula joint includes a wrench body, has a socket part and by the outward extending shank part in socket part, it is characterized in that:

Described wrench body, the end of socket part is concaved with a sleeve joint hole, offers the installing hole that always passes to thoroughly in the sleeve joint hole on the outer peripheral face of socket part;

One pushes the unit, is fixed on the pressing piece that the interior grommet and of installing hole is slidingly installed in the upper and lower displacement of grommet inside but have a cover, and described pressing piece upper end has a press section, and the lower end has one and supports only head;

One connector unit, have a driving head that is predetermined profile, and be located at the clamping piece at bolt jointing part outer peripheral face place by an extended bolt jointing part in driving head rear end and a bullet, described bolt jointing part can be inserted in the sleeve joint hole of wrench body, and described clamping piece can support end the head top that upsprings to pressing piece makes the press section protrude out the grommet outside.

2. the spanner with quick change formula joint as claimed in claim 1 is characterized in that: the wrench body sleeve joint hole is to be cubic rectangular opening, is rectangular column with respect to the connector unit bolt jointing part.

3. the spanner with quick change formula joint as claimed in claim 1 is characterized in that: wrench body is positioned at sleeve joint hole outer side edges place to be had one and can make clamping piece be easy to the chamfered section that card enters.

4. the spanner with quick change formula joint as claimed in claim 1 is characterized in that: the described unit of pushing includes the locating part that an interlocking is fixed on grommet inside, locates to be concaved with one in the middle of the described pressing piece periphery and can overlap the annular groove of inserting versatilely for locating part.

5. the spanner with quick change formula joint as claimed in claim 1 is characterized in that: the clamping piece of connector unit includes that a clip head and is embedded in can be to the butted spring of clip head in the bolt jointing part.