CN101550777A

CN101550777A - Idling lock

Info

Publication number: CN101550777A
Application number: CNA2009100390266A
Authority: CN
Inventors: 钟坚波
Original assignee: 钟坚波
Current assignee: Zhong Zhi Bo
Priority date: 2009-04-21
Filing date: 2009-04-21
Publication date: 2009-10-07

Abstract

The invention relates to an idling lock with wide application range and simple structure, comprising a shell, a lock core, blades, blade springs and a key; the lock core is provided with an inner cavity which is communicated with all blade grooves and is placed with a sliding plate; the edge of the sliding plate is provided with teeth openings corresponding to the blade grooves; the surface of the lock core is also provided with marble holes which are vertically intersected with the inner cavity and a key hole; the lower ends of the marbles with the surface provided with circular grooves extend into the marble holes of the lock core, pass through the through holes on the sliding plate and then extend into the key holes; the tail part of the lock core is sleeved with a second lock core and is provided with radial ball holes; correspondingly, the wall of the second lock core is provided with a clutch hole; the shell is provided with a flat ball hole; balls are arranged in the ball hole; clutch balls are arranged in a channel formed by the ball hole, the clutch hole and the flat ball hole; the flat ball hole is placed with flat balls and is provided with a clutch spring between the outer end of the flat ball and the shell; the length of the clutch ball is larger than the thickness of the wall of the second lock core; and the contact position of the tail end of the sliding plate and the ball is an inclined plane.

Description

The idle running lock

Technical field

The present invention relates to a kind of idle running lock, particularly relate to a kind of idle running lock with the idle rotation on-off structure.

Background technology

Disclose among the disclosed Chinese patent CN101135202A on March 5th, 2008 by a kind of " the idle running lock of blade construction ", lock core and rear lock core before it comprises, forward and backward lock core is provided with clutch; Be provided with the locking side column and the back-moving spring that can match in the locking side column groove of locking clutch on preceding lock core with the blade upper groove, locking side column is provided with the breach that can match with blade, the corresponding lock pin chute that is provided with on rear lock core with the locking side column groove, place lock pin and back-moving spring in the lock pin chute, the elasticity of lock pin back-moving spring big (little) is in the locking side column back-moving spring; Have at least one to adopt the inclined-plane contact in lock pin (locking side column) or the locking side column cell wall, be provided with step, have breach that matches with lock pin and the spacing breach that limits the rear lock core rotational angle on the step the rear lock core stop bit at the lock body afterbody with another.The shortcoming scope of application of this idle running lock is little---only be applicable to that oblique tongue, the side's of not being suitable for tongue etc. are unblanked and locking all needs lock core to impose the lock that external force drives; Reason is that its locking side column or lock pin must reset by the inclined-plane, and this inclined-plane realizes for lock pin or axial power of locking side column when key drives the rightabout rotation of unblanking on the lock core edge, so for driving the lockset that dead bolt resets by key in some locking processes, then can not use this idle running lock, because its locking process is not also finished, its lock pin or locking side column just reset.

Summary of the invention

The objective of the invention is to have the little problem of the scope of application that exists in the idle running lock now, and a kind of idle running applied widely, simple in structure lock is provided in order to solve.

First technical scheme that realizes the object of the invention is as follows: a kind of idle running lock comprises shell, lock core, blade, leaf spring and key; Wherein plug face is provided with some blade grooves that communicate with keyhole, places the blade and the leaf spring of arc in corresponding blade groove; It is characterized in that described lock core is provided with the inner chamber that communicates with each blade groove, place the slide plate that matches with it at inner chamber, the width of the breach in the thickness of this slide plate and the described blade is suitable, the limit of slide plate is provided with the tooth mouth corresponding to described blade groove, the width of this tooth mouth is suitable with the width of blade groove, the surface of lock core also is provided with the hoodle hole that intersects vertically with described inner chamber and keyhole, the hoodle lower end that the surface has a cannelure is stretched into the through hole that passes on the described slide plate behind the hoodle hole of lock core and is stretched in the keyhole again, is provided with the hoodle spring between the upper end of hoodle and the shell; The cross section of the cannelure on described hoodle surface is " V " shape; The afterbody of lock core is with second lock core, and the tail end of second lock core stretches out outside the described shell; The lock core afterbody has ball hole radially, correspondingly on the wall of second lock core, have the clutch hole, on shell, have the flat hole of bead, place ball in the described ball hole, place the clutch pearl at the passage that described ball hole, clutch hole, the flat hole of bead constitute, place flat pearl in the described flat hole of bead, and the clutch spring is set between flat pearl outer end and shell, the length of described clutch pearl is greater than the wall thickness of second lock core; Described slide plate tail end and described ball position contacting place are the inclined-plane.

Principle is as follows, insert key when unblanking, each blade and hoodle are shifted onto the position of unblanking by key, this moment the breach on each blade on the edge the tooth mouth and can not stop slip before and after the slide plate, the cannelure on the hoodle just in time is in the slide plate through hole and leaves certain clearance between the cannelure of hoodle and slide plate; Under the clutch spring action, ball the power on the slide plate inclined-plane of acting on makes slide plate along the lock core axis segment distance that slides, thereby ball can be moved inward, maintain an equal level up to the outer face of clutch pearl and the outer cylinder of second lock core, the clutch pearl links the lock core and second lock core between the clutch hole of the ball hole of described lock core and second lock core, key can be so that lock core drives the rotations of second lock core with respect to shell work 360 degree, and the locking mechanism in second lock core drive door moves and realize to unblank; During locking, key is rotated back into locked position of coupler along opposite direction, in the process of extracting key out, hoodle tooth on the key at first upwards pushes up hoodle, utilize the hoodle upper section slide plate to be resetted for the cannelure of " V " shape, the inclined-plane of slide plate tail end is by force with ball, the clutch pearl, flat pearl resets, thereby the clutch pearl is across second lock core and shell being linked second lock core is locked in the shell and can not unblank, the inner cylinder (being the outer cylinder of lock core tail end) of the clutch pearl inner face and second lock core maintains an equal level simultaneously, after key is extracted out fully, each blade and hoodle reset under leaf spring and hoodle spring action fully, the tooth mouth dislocation of breach on the blade and slide plate, cannelure on the hoodle also with slide plate on through hole dislocation, slide plate is positioned and can not moves, this moment is because the outer cylinder of clutch pearl inner face and lock core afterbody maintains an equal level, so lock core can rotate with respect to second lock core, thereby lock core is with respect to second lock core and shell idle running when realizing blocking, and can not unblank.

The diameter of described flat pearl is greater than the clutch hole of described second lock core.

Described lock core is provided with buckle outward, this buckle between lock core and housing and the button muscle of buckle fasten the wall of the catching groove on the lock core, the button muscle plays position-limiting action to described blade.

Described lock core sleeve has the casing of inner sealing, places limited block in the catching groove of lock core described blade is played position-limiting action, and this casing has side opening in the position corresponding to described clutch pearl.

Second technical scheme that realizes the object of the invention is as follows: a kind of idle running lock comprises shell, lock core, blade, leaf spring and key; Wherein lock core radially has some vane holes that communicate with keyhole, places blade and leaf spring in corresponding vane hole; It is characterized in that described lock core is provided with the inner chamber that communicates with each vane hole, place the slide plate that matches with it at inner chamber, blade is provided with two card bases, spacing between described two card bases is suitable with the width of described slide plate, the limit of slide plate is provided with the tooth mouth corresponding to described vane hole, the width of this tooth mouth is suitable with the width of vane hole, the surface of lock core also is provided with the hoodle hole that intersects vertically with described inner chamber and keyhole, the hoodle lower end that the surface has a cannelure is stretched into the through hole that passes on the described slide plate behind the hoodle hole of lock core and is stretched in the keyhole again, is provided with the hoodle spring between the upper end of hoodle and the shell; The cannelure cross section on described hoodle surface is " V " shape; The afterbody of lock core is with second lock core, and the tail end of second lock core stretches out outside the described shell; The lock core afterbody has ball hole radially, correspondingly on the wall of second lock core, have the clutch hole, on shell, have the flat hole of bead, place ball in the described ball hole, place the clutch pearl at the passage that described ball hole, clutch hole, the flat hole of bead constitute, place flat pearl in the described flat hole of bead, and the clutch spring is set between flat pearl outer end and shell, the length of described clutch pearl is greater than the wall thickness of second lock core; Described slide plate tail end and described ball position contacting place are the inclined-plane.

Described blade is a shaped as frame, and a wherein opposite side of described frame is described two card bases.

Principle is as follows, insert key when unblanking, each blade and hoodle are shifted onto the lockset position of coupler place by key, two card bases on each blade laid respectively at the slide plate both sides and separated with tooth mouth on the slide plate and can not stop slip before and after the slide plate this moment, and the cannelure on the hoodle just in time is in the slide plate through hole and leaves certain clearance between the cannelure of hoodle and slide plate; Under the clutch spring action, ball the power on the slide plate inclined-plane of acting on makes slide plate along the lock core axis segment distance that slides, thereby ball can be moved inward, maintain an equal level up to the outer face of clutch pearl and the outer cylinder of second lock core, the clutch pearl links the lock core and second lock core between the clutch hole of the ball hole of described lock core and second lock core, key can be so that lock core drives the rotations of second lock core with respect to shell work 360 degree, and the locking mechanism in second lock core drive door moves and realize to unblank; When key is rotated back into locked position of coupler in the other direction, in the process of extracting key out, hoodle tooth on the key at first upwards pushes up hoodle, utilize the hoodle upper section slide plate to be resetted for the cannelure of " V " shape, the inclined-plane of slide plate tail end is by force with ball, the clutch pearl, flat pearl resets, thereby the clutch pearl is across second lock core and shell are linked, the inner cylinder (being the outer cylinder of lock core tail end) of the clutch pearl inner face and second lock core maintains an equal level simultaneously, after key is extracted out fully, each blade and hoodle reset under leaf spring and hoodle spring action fully, card base on the blade snaps in the tooth mouth place of slide plate, cannelure on the hoodle and the dislocation of the through hole on the slide plate, slide plate is positioned and can not moves, this moment is because the outer cylinder of clutch pearl inner face and lock core afterbody maintains an equal level, so lock core can rotate with respect to second lock core, thereby lock core is with respect to second lock core and shell idle running when realizing blocking, and can not unblank.

Blade in first technical scheme is an arc, and its movement locus in blade groove also is the arc swing; And the blade movement track in second technical scheme is a left and right sides linear; In conjunction with above-mentioned two technical schemes, also the movement locus of the blade in first technical scheme can be changed into linear up and down, certainly, the blade shape of this moment also correspondingly changes rectangle or rectangular shaped as frame (rather than arc) into.

Owing to adopted technical solutions according to the invention, only need to insert key can so that the clutch pearl be connected securely and realize between lock core and second lock that 360 degree rotate and unblank, and be by force slide plate, ball, clutch pearl to be resetted by hoodle when resetting by in the key extraction, need revolve the lockset that three-sixth turn resets so can be used for theftproof lock etc., compare advantage with wide accommodation with above-mentioned existing lockset.

Description of drawings

The invention will be further described below in conjunction with drawings and Examples.

Fig. 1 is the three-dimensional exploded view of the embodiment of the invention one.

Fig. 2 is the stereo amplification figure of second another angle of lock core among Fig. 1.

Fig. 3 is the stereo amplification figure of another angle of lock core among Fig. 1.

Fig. 4 is the stereogram after lock core excises along axis horizontal among Fig. 3.

Fig. 5 is the stereo amplification figure of the key of Fig. 1 embodiment use.

Fig. 6 is the stereo amplification figure the when part except that shell and each spring is assemblied on Fig. 4 among Fig. 1.

Fig. 7 is the wherein stereo amplification figure of another angle of blade of Fig. 1.

Fig. 8 is the stereo amplification figure of one of them another angle of hoodle among Fig. 1.

Fig. 9 is the internal construction schematic diagram after each part assembling among Fig. 1.

Figure 10 is the three-dimensional exploded view of the embodiment of the invention two.

Figure 11 is the internal construction schematic diagram after each part assembling among Figure 10.

Figure 12 is the stereo amplification figure of one of them blade of Figure 10.

Figure 13 is the stereo amplification figure of the slide plate that uses among Fig. 1 and Figure 10.

The stereoscopic figure of the key that the present invention uses on Figure 14.

Figure 15 is the outside drawing of limited block.

Figure 16 is the outside drawing of casing.

Figure 17 is the outside drawing of protecting cover.

Figure 18 is Figure 15,16,17 and the stereoscopic figure of other internal junction part after fitting together.

Figure 19 is the cut-away view after Figure 18 excises half.

Figure 20 is the stereogram of casing among Figure 19.

Mark among the figure, 1, housing, 101, counterbore, 2, second lock core, 201, blind hole, 202, clutch hole, 3, slide plate, 301,302,305, the tooth mouth, 303, through hole, 304, the inclined-plane, 4, lock core, 401, blade groove, 402, the hoodle hole, 403, keyhole, 73, leaf spring, 71,72, blade, 74, hoodle, 75, the hoodle spring, 81, ball, 82, the clutch pearl, 83, flat pearl, 84, the clutch spring, 85, envelope pearl, 5, buckle, 501, the button muscle, 6, end cap; 404, inner chamber, 405, ball hole, 406, catching groove; 70, breach, 740, cannelure; 91, lock core, 911,912,913,914, vane hole, 92,93, blade, 931,932, card base, 933, shifting block, 94, hoodle, 90, spring, 30, the tooth mouth; 01, limited block, 900, key, 9001,9002, the blade tooth, 9003, the hoodle tooth, 02, casing, 03, protecting cover, 021, side opening, 00, keyhole, 05, lock core, 04, second lock core, 06, the clutch pearl.

The specific embodiment:

Embodiment one, for first technical scheme of the present invention, sees Fig. 1, and the housing 1 of band counterbore 101 and end cap 6 constitute described shell.

See Fig. 3 and Fig. 4, be provided with the inner chamber 404 that opening is positioned at its tail end in the described lock core 4, the both sides of inner chamber 404 communicate with each blade groove 401 and hoodle hole 402 respectively, and the button muscle 501 that the surface of inner chamber is offered on the buckle 5 among catching groove 406 and Fig. 1 vertically matches.

See Fig. 1, offer tooth mouth 301 and 302 (wherein tooth mouth 305 is positioned at the end of slide plate) on the both sides of slide plate 3 respectively, be tooth between the adjacent teeth mouth on one side together, the central authorities of slide plate are provided with the through hole 303 of four band chamferings, cannelure 740 among chamfering on the through hole 303 and Fig. 8 on the hoodle matches, the surface of lock core 4 is provided with four annular blade grooves 401 that communicate with keyhole 403,

place blade

71 and 72 in the blade groove 401, place leaf spring 73 between two blades in every blade groove, the tail end of slide plate 3 is inclined-plane 304; During installation, earlier slide plate 3 is put into the inner chamber of lock core 4, again each hoodle 74 and hoodle spring 75 are put into the hoodle hole 402 of lock core, stretch in the keyhole 403 after making hoodle pass through hole 303 on the slide plate, in each blade groove 401, put into

blade

71 and 72 and corresponding leaf spring 73 (blade 71 of same blade groove and a pair of vane group of 72 formations then, every pair of vane group is used a leaf spring), be inserted in buckle 5 in plug face again, make inflexed button muscle 501 in the buckle 5 fasten catching groove 406 among Fig. 3, button muscle 501 plays position-limiting action to the end of

blade

71 and 72 simultaneously, afterbody to lock core 4 is inserted in second lock core 2, if (this moment is with casing, the lock core and second lock core are after horizontal plane excision and take each spring away, its three-dimensional view is as shown in Figure 6), last integral body is put into and is sealed up end cap 6 again behind the counterbore 101 of housing 1 and get final product.

See Fig. 9, it is the internal construction schematic diagram when being in blocking among Fig. 1 embodiment, breach on the

blade

71 and 72 and slide plate 3 dislocation at this moment, cannelure on the hoodle 74 also misplaces with slide plate 3, slide plate is positioned and can not moves up and down along direction as shown, fair and the clutch pearl 82 of the outer cylinder of clutch pearl 82 inner faces and lock core 4 afterbodys of this moment is in the flat hole of bead of the clutch hole of second lock core 2 and housing 1, so lock core 4 can rotate with respect to second lock core 2, and between second lock core and the housing by relative positioning, thereby lock core is with respect to second lock core and shell idle running when realizing blocking, and can not unblank; After inserting key, breach on each blade on the edge the tooth mouth and slide before and after can not stopping slide plate, cannelure on the hoodle just in time is in the slide plate through hole and leaves certain spacing between the cannelure of hoodle and slide plate, under 84 effects of clutch spring, the power that ball 81 acts on slide plate 3 inclined-planes 304 makes slide plate 3 along lock core shaft's alignment lower slider one segment distance, thereby ball 81 can be moved to the left, withstand the outer cylinder of second lock core 2 up to flat pearl 83, the outer cylinder of the outer face of clutch pearl 82 and second lock core maintains an equal level, the clutch pearl links the lock core and second lock core between the clutch hole of the ball hole of lock core and second lock core, and key can be so that lock core drives second lock core is made 360 degree with respect to shell rotations; With the key wraparound during to locked position of coupler, in the process of extracting key out, hoodle tooth on the key at first upwards pushes up hoodle 74, utilize the hoodle upper section slide plate 3 to be resetted for the cannelure of " V " shape, the inclined-plane 304 of slide plate tail end resets to state shown in Figure 9 with ball 81, clutch pearl 82, flat pearl 83 by force, thereby the clutch pearl is across making second lock core and shell link between second lock core and the shell, the inner cylinder (being the outer cylinder of lock core tail end) of the clutch pearl inner face and second lock core maintains an equal level simultaneously.Wherein used four hoodles in the present embodiment, its benefit is to improve its secret key amount, reduces the repetition rate of coding of key.

Embodiment two, see Figure 10, belong to second technical scheme, it only is that with the difference of embodiment one the vane hole shape in blade and the lock core is different, as can be seen from Fig. 12, its blade is a shaped as frame, and opposite side is

card base

931 and 932, downside stretches out is the shifting block 933 that the tooth with key matches, and the width of the frame of shaped as frame blade is suitable with the width of slide plate; See Figure 10, the vane hole 911 on the lock core 91 is radially offering along lock core; Its principle is as follows: referring to Figure 10, after inserting key,

blade

92 and 93 and hoodle 94 shifted onto right position by key, this moment the frame hole of each blade central authorities and the axis centering of slide plate, two card bases 931 and 832 inboard lay respectively at the both sides of slide plate and separate with tooth mouth on the slide plate, at this moment, to gliding (all the other processes are identical with embodiment's one), and unblank by realization under the effect of ball for the slide plate 3 among Figure 11; In the process of extracting key out, utilize the effect of hoodle equally, slide plate is at first resetted, drive ball, clutch pearl, flat pearl reset to state shown in Figure 11, after extracting key out fully,

blade

92,93 resets to state shown in Figure 11 under the effect of spring 90, wherein the card base 932 of blade 93 snaps in the tooth mouth 30 of slide plate of Figure 10 among Figure 12, makes slide plate can not slide (blades in the most following two vane holes that only drawn among Figure 11) thereby stop slide plate.In the present embodiment, just the structure of blade control slide plate and embodiment's one is different, and all the other are identical with embodiment one all.

In the various embodiments described above, hoodle is cylindrical, and the hoodle hole in the lock core also is circular, so, can directly on lock core, get out the hoodle hole during production, production technology is comparatively simple.

Hoodle among the present invention also can be for square, and need not offer cannelure on the square hoodle at this moment, and offer the cross section on the side that only needs contact with the slide plate through hole in square hoodle is that the groove of " V " shape gets final product, just the cross section in the hoodle hole on the lock core of this moment also is square, this square hoodle hole can not process with bench drill, can only use the die casting mode directly to process simultaneously with lock core, its production technology be comparatively complicated with respect to circular hoodle, is a kind of bad technical scheme that becomes.

Figure 14 is the stereo appearance figure of the key that uses of embodiment one, the

blade tooth

9001 and 9002 of the key body both sides among the figure respectively with Fig. 1 in

blade

71 and 72 match, and the hoodle 74 that is arranged in supercentral hoodle tooth 9003 and Fig. 1 matches.

In addition, the buckle 5 among Fig. 1 embodiment also can adopt the casing among Figure 16, and the inner sealing of this casing 02, outer end opening place are provided with protecting cover shown in Figure 17 03, and protecting cover 03 damages (covering the end cap 6 among Fig. 1 outside the protecting cover 03 again) through heat treatment to prevent drilled; The assembly drawing that the casing of Figure 16 and the protecting cover of Figure 17 03 will be gone up behind the internal component is seen shown in Figure 180, the clutch pearl 06 that has on casing 02 sidewall among Figure 18 among side opening 021 and Figure 19 matches, the internal junction figure of Figure 18 sees Figure 19, the effect of the inner sealing of casing 02 is after preventing to splash into keyhole 00 with 502 water such as instant drying adhesive such as grade, the lock core and second lock core of inside are bonded together, and the button dialysis is closed pearl and is realized that violence unblanks by force again; As can be seen from Fig. 19, even glue pours into through keyhole 00, glue also can only arrhea in casing 02 and can not flow between the lock core 05 and second lock core 04.Limited block 01 among Figure 15 is used for replacing the button muscle 501 of Fig. 1 buckle 5, and position-limiting action is played in the end that blade rises.Wherein the lock core among Figure 19 05 is identical with the structure of second lock core 04.

Claims

1, a kind of idle running lock comprises shell, lock core, blade, leaf spring and key; Wherein plug face is provided with some blade grooves that communicate with keyhole, places the blade and the leaf spring of arc in corresponding blade groove; It is characterized in that described lock core is provided with the inner chamber that communicates with each blade groove, place the slide plate that matches with it at inner chamber, the width of the breach in the thickness of this slide plate and the described blade is suitable, the limit of slide plate is provided with the tooth mouth corresponding to described blade groove, the width of this tooth mouth is suitable with the width of blade groove, the surface of lock core also is provided with the hoodle hole that intersects vertically with described inner chamber and keyhole, the hoodle lower end that the surface has a cannelure is stretched into the through hole that passes on the described slide plate behind the hoodle hole of lock core and is stretched in the keyhole again, is provided with the hoodle spring between the upper end of hoodle and the shell; The cross section of the cannelure on described hoodle surface is " V " shape; The afterbody of lock core is with second lock core, and the tail end of second lock core stretches out outside the described shell; The lock core afterbody has ball hole radially, correspondingly on the wall of second lock core, have the clutch hole, on shell, have the flat hole of bead, place ball in the described ball hole, place the clutch pearl at the passage that described ball hole, clutch hole, the flat hole of bead constitute, place flat pearl in the described flat hole of bead, and the clutch spring is set between flat pearl outer end and shell, the length of described clutch pearl is greater than the wall thickness of second lock core; Described slide plate tail end and described ball position contacting place are the inclined-plane; Insert key when unblanking, each blade and hoodle are shifted onto the position of unblanking by key, this moment the breach on each blade on the edge the tooth mouth and can not stop slip before and after the slide plate, cannelure on the hoodle just in time is in the slide plate through hole and leaves certain clearance between the cannelure of hoodle and slide plate, under the clutch spring action, ball the power on the slide plate inclined-plane of acting on makes slide plate along the lock core axis segment distance that slides, thereby ball can be moved inward, maintain an equal level up to the outer face of clutch pearl and the outer cylinder of second lock core, the clutch pearl links the lock core and second lock core between the clutch hole of the ball hole of described lock core and second lock core, key can be so that lock core drives second lock core rotates with respect to shell, and second lock core drives the locking mechanism action in the door and realizes unblanking; During locking, key is rotated back into locked position of coupler in the other direction, in the process of extracting key out, hoodle tooth on the key at first upwards pushes up hoodle, utilize the hoodle upper section slide plate to be resetted for the cannelure of " V " shape, the inclined-plane of slide plate tail end is by force with ball, the clutch pearl, flat pearl resets, thereby the clutch pearl is across second lock core and shell being linked second lock core is locked in the shell and can not unblank, the inner cylinder of the clutch pearl inner face and second lock core maintains an equal level simultaneously, after key is extracted out fully, each blade and hoodle reset under leaf spring and hoodle spring action, breach on the blade and the dislocation of the tooth mouth on the slide plate, cannelure on the hoodle also with the dislocation of the through hole of slide plate, slide plate is positioned and can not moves.

2, according to the described idle running lock of claim 1, it is characterized in that the clutch hole of the diameter of described flat pearl greater than described second lock core.

3, according to claim 1 or 2 described idle running locks, it is characterized in that described lock core is provided with the arc buckle that matches with the lock core outer cylinder outward, this buckle between lock core and housing and the button muscle of buckle fasten the wall of the catching groove on the lock core, the button muscle plays position-limiting action to described blade.

4, according to claim 1 or 2 described idle running locks, it is characterized in that described lock core sleeve has the casing of inner sealing, in the catching groove of lock core, place limited block described blade is played position-limiting action that this casing has side opening in the position corresponding to described clutch pearl.

5, a kind of idle running lock comprises shell, lock core, blade, leaf spring and key; Wherein lock core radially has some vane holes that communicate with keyhole, places blade and leaf spring in corresponding vane hole; It is characterized in that described lock core is provided with the inner chamber that communicates with each vane hole, place the slide plate that matches with it at inner chamber, blade is provided with two card bases, spacing between described two card bases is suitable with the width of described slide plate, the limit of slide plate is provided with the tooth mouth corresponding to described vane hole, the width of this tooth mouth is suitable with the width of vane hole, the surface of lock core also is provided with the hoodle hole that intersects vertically with described inner chamber and keyhole, the hoodle lower end that the surface has a cannelure is stretched into the through hole that passes on the described slide plate behind the hoodle hole of lock core and is stretched in the keyhole again, is provided with the hoodle spring between the upper end of hoodle and the shell; The cannelure cross section on described hoodle surface is " V " shape; The afterbody of lock core is with second lock core, and the tail end of second lock core stretches out outside the described shell; The lock core afterbody has ball hole radially, correspondingly on the wall of second lock core, have the clutch hole, on shell, have the flat hole of bead, place ball in the described ball hole, place the clutch pearl at the passage that described ball hole, clutch hole, the flat hole of bead constitute, place flat pearl in the described flat hole of bead, and the clutch spring is set between flat pearl outer end and shell, the length of described clutch pearl is greater than the wall thickness of second lock core; Described slide plate tail end and described ball position contacting place are the inclined-plane; Insert key when unblanking, each blade and hoodle are shifted onto lockset position of coupler by key, two card bases on each blade laid respectively at the slide plate both sides and separated with tooth mouth on the slide plate and can not stop slip before and after the slide plate this moment, and the cannelure on the hoodle just in time is in the slide plate through hole and leaves certain clearance between the cannelure of hoodle and slide plate; Under the clutch spring action, ball the power on the slide plate inclined-plane of acting on makes slide plate along the lock core axis segment distance that slides, thereby ball can be moved inward, maintain an equal level up to the outer face of clutch pearl and the outer cylinder of second lock core, the clutch pearl links the lock core and second lock core between the clutch hole of the ball hole of described lock core and second lock core, key makes lock core drive second lock core to rotate with respect to shell, and second lock core drives the locking mechanism action in the door and realizes unblanking; When forwarding key to locked position of coupler in the other direction, in the process of extracting key out, hoodle tooth on the key at first upwards pushes up hoodle, utilize the hoodle upper section slide plate to be resetted for the cannelure of " V " shape, the inclined-plane of slide plate tail end is by force with ball, the clutch pearl, flat pearl resets, thereby the clutch pearl is across second lock core and shell are linked, the inner cylinder of the clutch pearl inner face and second lock core maintains an equal level simultaneously, after key is extracted out fully, each blade and hoodle reset under leaf spring and hoodle spring action fully, card base on the blade snaps in the tooth mouth place of slide plate, the dislocation of cannelure on the hoodle and the through hole on the slide plate is positioned slide plate and can not moves.

6, according to the described idle running lock of claim 5, it is characterized in that the clutch hole of the diameter of described flat pearl greater than described second lock core.

7, according to the described idle running lock of claim 5, it is characterized in that described blade is a shaped as frame, a wherein opposite side of described frame is described two card bases.

8, according to claim 5 or 6 or 7 described idle running locks, it is characterized in that described lock core is provided with the arc buckle that matches with the lock core outer cylinder outward, this buckle between lock core and housing and the button muscle of buckle fasten the wall of the catching groove on the lock core, the button muscle plays position-limiting action to described blade.

9, according to claim 5 or 6 or 7 described idle running locks, it is characterized in that described lock core sleeve has the casing of inner sealing, in the catching groove of lock core, place limited block described blade is played position-limiting action that this casing has side opening in the position corresponding to described clutch pearl.