CN1837559A - Hidden anti-theft lock - Google Patents

Abstract

The invention relates to a hidden anti-theft lock, which comprises a lock body and a bolt unlocking device. Wherein, the bolt unlocking device is formed by a key dial fork, a flexible plate, a spring base, a spring, a dial fork pushing plate, a dial fork recovering plate, and a slide plate; the key dial fork has a boss along the radial direction; the lower side of large sharp plate has the dial tooth matching the boss; the flexible plate, the spring base, and recovering spring are mounted between the key dial fork; two sides of key dial fork are mounted with dial fork pushing plate, recovering spring and dial fork recovering plate; the lock body box is mounted with a slide plate that mounted with slide plate recover spring; the left upper part of slide plate has clamp tooth; the upper side of large sharp plate has matched cut. The invention hides the key element of lock, that combining the flexible plate and the dial fork pushing plate to switch the lock, therefore, the dial fork pushing plate can not be seen outside the lock. The invention has high safety, lower cost, and wider application.

Description

A kind of hidden anti-theft lock

Affiliated technical field

The present invention relates to a kind of lockset, specifically is a kind of mechanical type hidden anti-theft lock.

Technical background

The present employed various cylinder locks of people, because tapered end is installed in outside the lock body, the critical component of lock is a pellet shot from a slingshot, can directly see this critical component from lockhole, the feel of directly stirring this critical component with master key is stronger, and this will stay opportunity to other people.Though people have known the existence of the disadvantage of this lock, and taked the various anti-measures of pulling out, this class technology total be unableing to do without on making allows people see the form of the critical component of tapered end.Become more and more popular on the market now and unblank with master key, this suffices to show that all available master key pirate of the open of this lockset.Also has a kind of blade lock at present on the market, though there is not the ball lock head structure, the critical component of lock is a blade, also can directly see and push, the locus that blade not only takies in the lock is bigger, and inflexible be that automaticity is not high, can influence the installation and the use of other structure, moreover the feel of stirring blade with master key is stronger, but promptly with same this class lockset of pirate of the open of master key.

Summary of the invention

In order to overcome the deficiency of existing lockset, the invention provides and a kind of critical component is hidden in the lock, cannot see from appearance and dialling not, can not directly pull out with master key, and can alleviate the feel effect of stirring with foreign matter, prevent pulling out effective, easy to use hidden anti-theft lock.

The technical scheme that the present invention solves its technical problem employing is: a kind of hidden anti-theft lock, comprise lock main body and dead bolt opening device, the lock main body comprise the lock case that is box-like and with the supporting locking closure of lock case, the relevant position has key and dials the hairpin hole on lock case and locking closure, the dead bolt of a side of extended lock body is installed in the lock case of dialling hairpin hole one side near key, an end that does not stretch out lock case at dead bolt is fixedly connected with big sharp plate, on lock case or big sharp plate, design to have and stretch out the consistent guide pin mounting hole of lock body direction with dead bolt, and be fixedly connected with guide pin at lock case or big sharp plate relevant position, guide pin guide pin relatively slides with mounting hole, guide pin is consistent with the length that dead bolt stretches out lock case with the length of mounting hole, the dead bolt opening device is dialled hairpin by key, shell fragment, spring base and spring, dial the hairpin push pedal, dial the hairpin compound plate, slide plate is formed, dialling in the hairpin hole respectively correspondence at the key of lock case and locking closure is equipped with key and dials hairpin, dial the design vertically of place, hairpin axle center at key keyhole is arranged, key is dialled hairpin and can be rotated relative to lock case and locking closure, key is dialled hairpin short round sheet end and has radially been designed plush copper, and has with key in the design of the downside of big sharp plate and to dial the supporting moving tooth of hairpin plush copper; Dial at the key of lock case and locking closure two or more than two shell fragment is installed between the hairpin at least, on lock case, be fixedly connected with two guide pins or other guiding devices at least, and guide groove or guide head are arranged in shell fragment corresponding position design, shell fragment is guide pin or the slip of other guiding devices relatively, and design has keyhole on shell fragment, and the keyhole on the shell fragment aligns mutually with the keyhole that key is dialled on the hairpin; The below of shell fragment is connected with spring base, offers on the spring base and the corresponding spring blind hole of shell fragment quantity, and built-in shell fragment back-moving spring, and have limb, limb to be inserted in the spring eye of spring base jacking on the shell fragment back-moving spring in the design of the middle lower end of shell fragment; Key is dialled the hairpin both sides and is separately installed with group hairpin push pedal, in group hairpin push pedal, resetting means is installed, dial in the hairpin push pedal and be fixedly connected with bail, on the relevant position of shell fragment, offer " fourth " word bail groove supporting, in group hairpin push pedal, be connected with and dial the hairpin compound plate with bail; Slide plate is installed in lock case, on lock case, be fixedly connected with two guide pins or other guiding devices at least, and design has guide pin with mounting hole or guide head on the slide plate relevant position, slide plate is guide pin or the slip of other guiding devices relatively, the slide plate resetting means is installed on slide plate, and an end of slide plate resetting means such as spring is connected on the slide plate, and the other end is connected on the lock case, the upper left side design of slide plate has latch, and in big sharp plate upside design supporting with it breach is arranged.

In the described group of hairpin push pedal on the fixedly connected bail design the anti-boss of dialling is arranged, fall at shell fragment that design has and the anti-supporting anti-breach of dialling of boss of dialling of bail on " fourth " word bail groove.

Be fixedly connected with two hollow lining nails on the lock case of described shell fragment below, and pass locking closure in the locking closure corresponding position, the screw of fixed guide positioning and orienting device installing plate can pass the hollow lining nail front and back two guide-localization bearing units installing plate is fixed on lock case and the locking closure lateral surface.

Described group of hairpin push pedal can also be that lever construction is connected with lock case, is that fulcrum is done circular motion with a nail on the lock case promptly.

Described group of hairpin compound plate is installed in to be dialled in the hairpin push pedal, and can the lever form be connected on the lock case in the lump with group hairpin push pedal.

Described hidden anti-theft lock also comprises key, in a lateral layout of key location and directed protruding top is arranged, and designs on guide-localization bearing unit installing plate supporting with it directed breach is arranged.

The invention has the beneficial effects as follows, the structure that the critical component that the employing of this hidden anti-theft lock will be locked stashes, promptly adopt shell fragment and dial the hairpin push pedal and dial the mode that the hairpin compound plate combines, can't see group hairpin push pedal and dial the hairpin compound plate from lockhole, stir the hairpin push pedal indirectly and dial the hairpin compound plate and open the door and lock with key, the spring of dialling in the hairpin push pedal can not only play reset response, and can alleviate the feel effect that his human master key is stirred shell fragment, rational in infrastructure, reliable operation, prevent dialling boss owing to design on the bail to have, and design there is supporting with it anti-group breach in the bail groove on shell fragment the pirate of the open of energy preventing universal key, safe, cost of production is lower, and can be used with various tapered ends, makes things convenient for advantages such as other people select.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 takes the partial sectional view that locking closure, guide-localization bearing unit installing plate, key are dialled hairpin, dialled the hairpin compound plate apart for the embodiment of the invention 1.

Fig. 2 is the structural representation of the embodiment of the invention 2.

Fig. 3 takes the partial sectional view that locking closure, guide-localization bearing unit installing plate, key are dialled hairpin, dialled hairpin compound plate, slide plate apart for the embodiment of the invention 2.

Fig. 4 is the A-A sectional view of Fig. 2.

Fig. 5 is the rear elevation of Fig. 2.

Fig. 6 is a key of the present invention.

Fig. 7 is the D-D sectional view of Fig. 5.

The specific embodiment

Embodiment 1

With reference to Fig. 1, a kind of hidden anti-theft lock, comprise lock main body and dead bolt opening device, the lock main body comprise the lock case [1] that is box-like and with the supporting locking closure [2] of lock case, the relevant position has key and dials the hairpin hole on lock case [1] and locking closure [2], the dead bolt [3] of a side of extended lock body is installed in the lock case [1] of dialling hairpin hole one side near key, an end that does not stretch out lock case [1] at dead bolt [3] is fixedly connected with big sharp plate [4], on lock case [1], design to have and stretch out the consistent guide pin of lock body direction mounting hole [5] with dead bolt [3], and big sharp plate [4] relevant position is fixedly connected with guide pin [6], guide pin guide pin relatively slides with mounting hole, guide pin is consistent with the length that dead bolt [3] stretches out lock case [1] with the length of mounting hole, the dead bolt opening device is dialled hairpin [7] by key, shell fragment [8], spring base [9] and spring [10], dial hairpin push pedal [11], dial hairpin compound plate [12], slide plate [13] is formed, dialling in the hairpin hole respectively correspondence at the key of lock case [1] and locking closure [2] is equipped with key and dials hairpin [7], dial the design vertically of place, hairpin axle center at key keyhole [14] is arranged, key is dialled hairpin [7] and can be rotated relative to lock case [1] and locking closure [2], key dial hairpin [7] short round sheet [8] end radially design plush copper [15] is arranged, have with key in the downside design of big sharp plate [4] and dial the supporting moving tooth of hairpin plush copper [16]; Dial at the key of lock case [1] and locking closure [2] six shell fragments [8] are installed between the hairpin [7], on lock case [1], be fixedly connected with three guide pins [17], offer guide groove [18] in shell fragment [8] corresponding position, shell fragment [8] guide pin relatively slides up and down, and design has keyhole [19] on shell fragment, and the keyhole on the shell fragment [8] aligns mutually with the keyhole that key is dialled on the hairpin [7]; Behind key switching lock, can automatically reset for ease of shell fragment, the below of shell fragment [8] is connected with spring base [9], offer on the spring base and the corresponding spring blind hole of shell fragment quantity, built-in shell fragment back-moving spring [10], and there are limb [20], limb to be inserted in the spring eye of spring base [9] jacking on shell fragment back-moving spring [10] in the design of the middle lower end of shell fragment [8].Dial hairpin [7] this lock of pirate of the open for preventing the key on other people the rotational lock box [1], key is dialled the hairpin both sides and is separately installed with group hairpin push pedal [11], on lock case, be fixedly connected with two guide pins [43], and offer guide pin with mounting hole [44] dialling hairpin push pedal relevant position, dial hairpin push pedal guide pin [43] slip relatively, in group hairpin push pedal [11], be fixedly connected with bail [21], the design of bail upper end has installation base, for preventing to push this lock aside with master key, in the design of bail [21] one sides the anti-boss [22] of dialling is arranged, on the relevant position of shell fragment, offer " fourth " word bail groove supporting with bail [21], the design of bail groove one side has and the anti-supporting anti-breach [23] of dialling of boss [22] of dialling of bail, dial hairpin [7] this lock of pirate of the open for preventing the key that other people rotate on the locking closure [2], dialling the lining nail [24] that is installed with the band boss in the hairpin push pedal [11], dismountable group of hairpin compound plate [12], group hairpin compound plate [12] are installed in bail and the lining dialled in the hairpin push pedal [14] and nail on the boss of end.Dialling the hairpin compound plate also can be connected on the lock case [1] with the lever form with dialling the hairpin push pedal.Behind key switching lock, automatically reset for ease of dialling hairpin push pedal [11], in group hairpin push pedal [11], be equipped with and dial hairpin push pedal back-moving spring [40], an end of spring is connected in group hairpin push pedal [11], and the other end is connected on the lock case [1].Exceed lockmaking tongue [3] at ordinary times or stretch out or the lock case of withdrawing [1] when arriving latched position, slide plate [13] is installed in the lock, in lock case [1], be fixedly connected with two guide pins [25], and on slide plate [13] relevant position, offer guide pin mounting hole [26], slide plate [13] guide pin relatively slides, slide plate back-moving spring [27] is installed on slide plate, one end of slide plate back-moving spring is connected on the slide plate [13], the other end is connected on the lock case [1], the upper left side design of slide plate [13] has latch [B], and in the design of big sharp plate [4] upside supporting with it breach [C] is arranged.

Embodiment 2

With reference to Fig. 2-7, this antitheft stealthy lock comprises lock main body, dead bolt opening device and oblique tongue opening device three parts.The lock main body comprises the lock body [1] and the supporting locking closure [2] of lock body that is box-like, go up the relevant position at lock case [1] and locking closure [2] and have that key is dialled the hairpin hole and the handle cam is dialled the hairpin hole, the dead bolt [3] of a side of extended lock body is installed in the lock case [1] of dialling hairpin hole one side near key, an end that does not stretch out lock case [1] at dead bolt [3] is fixedly connected with big sharp plate [4], on lock case [1], design to have and stretch out the consistent guide pin of lock body direction mounting hole [5] with dead bolt [3], and be fixedly connected with guide pin [6] in big sharp plate [4] relevant position, guide pin guide pin relatively slides with mounting hole, and guide pin is consistent with the length that dead bolt [3] stretches out lock case [1] with the length of mounting hole.In lock case [1], be installed with oblique tongue support [31] near oblique tongue opening device hole one side, tiltedly have the oblique tongue rod hole on the tongue support, oblique tongue rod [32] passes this hole, and slide in this hole relatively, be installed with the oblique tongue [33] of [1] side of extended lock case at oblique tongue rod [32] one ends, and be set with oblique tongue spring [34] on oblique tongue rod [32], an end that does not stretch out lock case [1] at oblique tongue rod [32] is fixedly connected with oblique tongue arm-tie [35]; In the oblique tongue opening device hole of lock case [1] and locking closure [2], the handle cam is installed and dials hairpin [36], the end that the handle cam is dialled hairpin is connected with lock case [1] hinge, the other end is connected with locking closure [2] hinge, and the handle cam is dialled termination that hairpin [36] radially protrudes from lock case [1] and oblique tongue rod [32] and oblique tongue support [31] and tiltedly reach on the oblique tongue rod [32] between the tongue arm-tie [35].The dead bolt opening device is dialled hairpin [7] by key, shell fragment [8], spring base [9] and spring [10], dial hairpin push pedal [11], dial hairpin compound plate [12], slide plate [13] is formed, dialling in the hairpin hole respectively correspondence at the key of lock case [1] and locking closure [2] is equipped with key and dials hairpin [7], dial the design vertically of place, hairpin axle center at key keyhole [14] is arranged, key is dialled hairpin [7] and can be rotated relative to lock case [1] and locking closure [2], key dial hairpin [7] short round sheet [8] end radially design plush copper [15] is arranged, have with key in the downside design of big sharp plate [4] and dial the supporting moving tooth of hairpin plush copper [16]; Dial at the key of lock case [1] and locking closure [2] six shell fragments [8] are installed between the hairpin [7], on lock case [1], be fixedly connected with three guide pins [17], offer guide groove [18] in shell fragment [8] corresponding position, shell fragment [8] guide pin relatively slides up and down, and design has keyhole [19] on shell fragment, and the keyhole on the shell fragment [8] aligns mutually with the keyhole that key is dialled on the hairpin [7]; Behind key switching lock, can automatically reset for ease of shell fragment, the below of shell fragment [8] is connected with spring base [9], offer on the spring base and the corresponding spring blind hole of shell fragment quantity, built-in shell fragment back-moving spring [10], and there are limb [20], limb to be inserted in the spring eye of spring base [9] jacking on shell fragment back-moving spring [10] in the design of the middle lower end of shell fragment [8].Dial hairpin [7] this lock of pirate of the open for preventing the key on other people the rotational lock box [1], key is dialled the hairpin both sides and is separately installed with group hairpin push pedal [11], on lock case, be fixedly connected with two guide pins [43], and offer guide pin with mounting hole [44] dialling hairpin push pedal relevant position, dial hairpin push pedal guide pin [43] slip relatively.In group hairpin push pedal [11], be fixedly connected with bail [21], the design of bail [21] upper end has installation base, for preventing to push this lock aside with master key, in the design of bail [21] one sides the anti-boss [22] of dialling is arranged, on the relevant position of shell fragment, offer " fourth " word bail groove supporting with bail [21], the design of bail groove one side has and the anti-supporting anti-breach [23] of dialling of boss [22] of dialling of bail, dial hairpin [7] this lock of pirate of the open for preventing the key that other people rotate on the locking closure [2], dialling the lining nail [24] that is installed with the band boss in the hairpin push pedal [11], dismountable group of hairpin compound plate [12], group hairpin compound plate [12] are installed in bail and the lining of dialling hairpin push pedal [11] and nail on the boss of end.Dialling the hairpin compound plate also can the lever form be connected on the lock case [1] with dialling the hairpin push pedal.Behind key switching lock, automatically reset for ease of dialling hairpin push pedal [11], in group hairpin push pedal [11], be equipped with and dial hairpin push pedal back-moving spring [40], an end of spring is connected in group hairpin push pedal [11], and the other end is connected on the lock case [1].Exceed lockmaking tongue [3] at ordinary times or stretch out or the lock case of withdrawing [1] when arriving latched position, slide plate [13] is installed in the lock, in lock case [1], be fixedly connected with two guide pins [25], and on slide plate [13] relevant position, offer guide pin mounting hole [26], slide plate [13] guide pin relatively slides, slide plate back-moving spring [27] is installed on slide plate, one end of slide plate back-moving spring is connected on the slide plate [13], the other end is connected on the lock case [1], the upper left side design of slide plate [13] has latch [B], and in the design of big sharp plate [4] upside supporting with it breach [C] is arranged.

This hidden anti-theft lock, design has lever to dial hairpin [42] in the lock case [1], its lower end design has pin hole, the pivot pin [37] that is fixedly connected on the dead bolt [3] passes this Kong Yuqi hinge connection, lever is dialled hairpin [42] and can be rotated relative to this pivot pin, its upper end reaches on the oblique tongue rod between locking closure [2] and oblique tongue rod [32] and oblique tongue support [31] and oblique tongue arm-tie [35], hairpin push pedal upper end is dialled from reaching between locking closure [2] and group hairpin push pedal in its lower end, and right side design has and can dial the moving tooth [41] of hairpin [42] by shifting lever on dialling hairpin push pedal [11].

This hidden anti-theft lock, be fixedly connected with two hollow lining nails [28] on the lock case below in shell fragment [1], and pass locking closure in locking closure [2] corresponding position, the screw of fixed guide positioning and orienting device installing plate [29] can pass hollow lining nail [28] front and back two guide-localization bearing units installing plates [29] are fixed on lock case [1] and locking closure [2] lateral surface, also can other various tapered ends be fixed on this invisible antitheft by this device and lock and make guide locating device provided usefulness.

This hidden anti-theft lock has location and directed protruding top [38] in a lateral layout of key [30], and going up to design at guide-localization bearing unit installing plate [29] simultaneously has supporting with it directed breach [39].

This hidden anti-theft lock course of work is: when unblanking, key with hidden anti-theft lock inserts keyhole, driving key in the direction of the clock dials hairpin [7] and turns an angle, protruding top of positioning and directing on this moment key side and the directed breach direction on the guide-localization bearing unit installing plate [29] angle phase position that staggered, can not extract key, key one side teeth and shell fragment [8] beginning are supporting, and the bail translot on each shell fragment left side aligns mutually; Continue to reverse key, and drive key and dial hairpin [7] and stir key and dial dialling hairpin push pedal [11] and dialling hairpin compound plate [12] toward moving left of the hairpin left side, the bail of dialling in the hairpin push pedal [11] [21] puts in the translot from the bail vertical slot of shell fragment; Continue to reverse key, and drive key and dial hairpin [11] and turn an angle, dial hairpin push pedal [11] and dial hairpin compound plate [12] and allowed key dial hairpin [7], and reset dialling under hairpin push pedal back-moving spring [40] the elastic force effect, at this moment, key one side teeth continue with shell fragment supporting; Continue to reverse key, and drive key and dial hairpin [7], stir slide plate [13], its latch [B] is ejected disengagement from the breach [C] of big sharp plate [4], at this moment, key one side teeth and shell fragment [12] disengagement; Continue to reverse key, and drive key and dial hairpin [7] and rotate, stir the latch of big sharp plate [4] downside, dead bolt [3] is dialled back [1] gear operating state of lock case; Be rotated further key, key is dialled hairpin [7] and was allowed slide plate [13], slide plate resets under slide plate back-moving spring [27] elastic force effect, latch [B] on the slide plate [13] is dropped in the breach [C] on the big sharp plate [4] dead bolt [3] is blocked, at this moment, open the lock with the key and finish a gear operating state,, can not transfer to key because of the directed breach direction on protruding top of positioning and directing and the guide-localization bearing unit installing plate [29] on side of key continues to stagger; Continue to reverse key, key is dialled hairpin [7] and is thrown off with the latch of big sharp plate [4] downside, key opposite side teeth begin with shell fragment supporting, the bail translot on shell fragment [8] the right aligns mutually, and begin to stir key and dial dialling hairpin push pedal [11] and dialling hairpin compound plate [12] of hairpin the right toward moving right, the bail of dialling in the hairpin push pedal [21] puts in the translot from the bail vertical slot of shell fragment, continue to reverse key, dial hairpin push pedal [11] and dial hairpin compound plate [12] and allowed key dial hairpin, and reset dialling under hairpin push pedal back-moving spring [40] the elastic force effect.At this moment, key opposite side teeth and shell fragment [8] continue supporting, are rotated further key to original position, and key opposite side teeth and shell fragment are thrown off.At this moment, can extract key, but this hidden anti-theft lock do not open fully as yet also, also need repeat above action and finish another gear operating state of unblanking, forward key to original position, this hidden anti-theft lock just is in unlocking condition.During with the key operated oblique tongue of hidden anti-theft lock, continue to reverse key, and drive key and dial hairpin [7] and reverse certain angle in the direction of the clock, key one side teeth and shell fragment [8] beginning are supporting, the bail translot on each shell fragment left side aligns mutually, continue to reverse key, and drive key and dial hairpin [7] and stir key and dial dialling the hairpin push pedal and dialling the hairpin compound plate of the hairpin left side toward moving left, the bail of dialling in the hairpin push pedal [21] puts in the translot from the bail vertical slot of shell fragment [8], dials moving tooth [41] the beginning engagement lever on right side, hairpin push pedal upper end and dials hairpin [42]; Continue to reverse key, and drive key and dial hairpin [7] and continue to stir hairpin push pedal [11] and dial hairpin compound plate [12], dial on the hairpin push pedal moving tooth [41] shifting lever on right side and dial hairpin [42], the oblique tongue [33] of this hidden anti-theft lock is dialled back lock case [1] toward moving left.Unclamp hand after unblanking, oblique tongue [33] stretches out lock case [1] and gets back to original position under oblique tongue spring [34] elastic force effect, then key is inverted to original position, extracts.During locking, key with hidden anti-theft lock inserts keyhole, reverse key by above rightabout, when repeating to finish the above gear operating state of unblanking and forwarding key to original position, can extract key, but hidden anti-theft lock only is in half locking states, be rotated further key, repeat to finish above another gear operating state of locking again, forwarding key to original position extracts, finish another gear operating state of locking of hidden anti-theft lock, forward key to original position and extract, this hidden anti-theft lock just is in complete locking states.

When the key that reverses this hidden anti-theft lock when his human master key is dialled hairpin, can not directly see, and can only stir the hairpin push pedal indirectly and dial the hairpin compound plate and move with foreign matter, because it is more that the anti-group boss on group hairpin push pedal bail puts in the anti-position of dialling in the breach of shell fragment bail groove, dial the shell fragment of motionless hidden anti-theft lock with master key at all, simultaneously, dial hairpin push pedal back-moving spring and can play the feel effect that his human master key of alleviation is stirred the shell fragment of this hidden anti-theft lock.Unclamp the twisting key when dialling the hand of hairpin, dial the hairpin push pedal and can get back to original position smoothly dialling under the effect of hairpin push pedal back-moving spring elastic force, can play the effect of preventing universal key pirate of the open.

This hidden anti-theft lock can be made electronic lock, world lock, outer dress lock etc.

Claims (6)

1, a kind of hidden anti-theft lock, comprise lock main body and dead bolt opening device, the lock main body comprise the lock case [1] that is box-like and with the supporting locking closure [2] of lock case, the relevant position has key and dials the hairpin hole on lock case [1] and locking closure [2], the dead bolt [3] of a side of extended lock body is installed in the lock case [1] of dialling hairpin hole one side near key, an end that does not stretch out lock case [1] at dead bolt [3] is fixedly connected with big sharp plate [4], on lock case or big sharp plate, design to have and stretch out the consistent guide pin of lock body direction mounting hole [5] with dead bolt [3], and be fixedly connected with guide pin [6] at lock case or big sharp plate [4] relevant position, guide pin is consistent with the length that dead bolt [3] stretches out lock case [1] with the length of mounting hole, it is characterized in that: the dead bolt opening device is dialled hairpin [7] by key, shell fragment [8], spring base [9] and spring [10], dial hairpin push pedal [11], dial hairpin compound plate [12], slide plate [13] is formed, dialling in the hairpin hole respectively correspondence at the key of lock case [1] and locking closure [2] is equipped with key and dials hairpin [7], dial the design vertically of place, hairpin axle center at key keyhole [14] is arranged, key is dialled hairpin [7] and can be rotated relative to lock case [1] and locking closure [2], key dial hairpin [7] short round sheet [8] end radially design plush copper [15] is arranged, have with key in the downside design of big sharp plate [4] and dial the supporting moving tooth of hairpin plush copper [16]; Dial at the key of lock case [1] and locking closure [2] two or more than two shell fragment [8] is installed between the hairpin [7] at least, on lock case [1], be fixedly connected with two guide pins [17] or other guiding devices at least, and guide groove [18] or guide head are arranged in shell fragment [8] corresponding position design, going up design at shell fragment [8] has keyhole [19], and the keyhole on the shell fragment aligns mutually with the keyhole that key is dialled on the hairpin [7]; The below of shell fragment [8] is connected with spring base [9], offers on the spring base and the corresponding spring blind hole of shell fragment quantity, and built-in shell fragment back-moving spring [10], and limb [20] is arranged in the design of the middle lower end of shell fragment; Key is dialled the hairpin both sides and is separately installed with group hairpin push pedal [11], in group hairpin push pedal, resetting means is arranged, dial in the hairpin push pedal [11] and be fixedly connected with bail [21], on the relevant position of shell fragment [8], offer " fourth " word bail groove supporting, in group hairpin push pedal [11], be fixedly connected with and dial hairpin compound plate [12] with bail [21]; Slide plate [13] is installed in lock case [1], and on lock case, be fixedly connected with two guide pins [25] or other guiding devices at least, and design has guide pin mounting hole [26] or guide head on slide plate [13] relevant position, on slide plate [13], the slide plate resetting means is installed, the upper left side design of slide plate has latch [B], and in the design of big sharp plate [4] upside supporting with it breach [C] is arranged.

2, hidden anti-theft lock according to claim 1, it is characterized in that: have in upward fixedly connected bail [21] design of group hairpin push pedal [11] and prevent dialling boss [22], at the anti-group breach [23] that " fourth " word bail groove design has and the anti-group boss [22] of bail is supporting of shell fragment [8].

3, hidden anti-theft lock according to claim 1 and 2, it is characterized in that: in shell fragment [8], be fixedly connected with two hollow lining nails [28] on the lock case [1] of below, and pass locking closure in locking closure [2] corresponding position, the screw of fixed guide positioning and orienting device installing plate [29] can pass hollow lining nail [28] front and back two guide-localization bearing units installing plates [29] are fixed on lock case [1] and locking closure [2] lateral surface.

4, according to the described hidden anti-theft lock of claim 1-3, it is characterized in that: dialling hairpin push pedal [11] can also be that lever construction is connected with lock case [1], is that fulcrum is done circular motion with a nail on the lock case [1] promptly.

5, according to the described hidden anti-theft lock of claim 1-4, it is characterized in that: dial the hairpin compound plate and can also be connected on the lock case [1] with the lever form in the lump with group hairpin push pedal.

6, hidden anti-theft lock according to claim 1, also comprise key [30], it is characterized in that: a lateral layout at key [30] has location and directed protruding top [38], and in the last design of guide-localization bearing unit installing plate [29] supporting with it directed breach [39] is arranged.

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