CN2396149Y - Key and lock cylinder - Google Patents

Abstract

The utility model relates to a key and a lock core. The key is composed of a groove which is combined by a key body and a sleeve rod, and the bottom of the groove is provided with concave and convex key teeth. The peripheral surface of the sleeve rod is provided with a plurality of concave parts with unequal depths. The lock core is composed of a lock body, an inner lock core and a lock sleeve, wherein, the front end of the lock body is provided with a front theft protection mechanism which is composed of a drilling proof sleeve and a front steel drilling proof sheet. The back end of the lock body is provided with a back theft protection mechanism which is composed of an impact proof steel rod and the steel drilling proof sheet. The utility model has the advantages of high theft protection performance.

Description

Key and core

The utility model relates to a kind of key and core, especially a kind of key and core with height anti-theft effect.

The part that common key inserts lockhole is flat or circular two kinds, wherein the pancake key is to form shaggy tooth portion in its one or both sides, round key then forms some conical recesses at its outer peripheral face, utilize this shaggy tooth portion or should taper shape recess key can push against the screening or the lock pin of core inside, make screening or core present the state of unlatching and reach the purpose of unblanking, common pancake key and round key are but because commonly used, general locksmith all has copy machine, is therefore duplicated in a large number by the people easily and loses antitheft meaning.And general one-sided flat key and most round key with shaggy tooth portion because have directionality, must be aimed at lockhole and just can unblank, and therefore has and opens difficult shortcoming.

The patent No. is that 93210622 utility model patent has disclosed a kind of " key and core ", this key is to combine with a spoon body that is provided with key bit with the loop bar that forms a breach to have both sides spoon wall, forms a recessed guide groove and reaches the purpose that is difficult for being replicated and not having directionality.But,, suffer the thief to utilize special instrument (as bearded needle or iron wire) to open easily because this key only has this recessed guide groove.

In addition, the end that this core inserts in this key suffers the thief directly to go into (or directly insert lockhole with hard thing and change firmly) with electric drill by the key hole drill easily, destroys the lock pin of inside and opens; Perhaps, stretched into by the key hole with punching pin by the thief, impact this core end (or directly destroying this core end), dead bolt is separated with core, rotate dead bolt again and open, thereby reduce its theftproof with electric drill.

The purpose of this utility model is to provide a kind of key and core, and it has highly antitheft characteristic, is difficult for key operated with non-this core, and is difficult for destroying with electric drill or foreign matter.

Another purpose of the present utility model is to provide a kind of key and core, and this key is transreplication and do not have directionality not.

For achieving the above object, the utility model provides a kind of key and core, this key comprises spoon body and loop bar, this spoon body is made of key bit portion that is provided with key bit and the shank of the key portion that is formed at this key bit portion root, this loop bar is the round bar that vertically forms a breach, this loop bar combines with the key bit portion of this spoon body with its breach and forms the groove that bottom land has concavo-convex key bit, can duplicate at general locksmith easily to prevent this key.Simultaneously, in order to improve this key theftproof, establish the deep mixed recess of plural number at the outer peripheral face of this loop bar especially, to increase the difficulty of opening the core that is used with this key.This recess can form row respectively in these groove both sides, or is irregular arrangement arbitrarily.

This core comprises lock body, inner lock core, back burglar-proof mechanism, dead bolt, sleeve pipe and preceding burglar-proof mechanism.It is poor that this lock body is provided with the pin-and-hole of the lock core hole that vertically runs through, some and the vertical perforation of this lock core hole and is formed at outside this lock body the section of Zhou Qianduan; This inner lock core is provided with keyhole, and the stepped pin-and-hole of some vertical perforations with this keyhole, this inner lock core cover is packed in the lock core hole of this lock body, wherein this stepped pin-and-hole is connected with this pin-and-hole, and pack into interior lock pin, outer lock pin and spring of preface successively, should radially have a flange by interior lock pin, and be positioned this stepped pin-and-hole with this flange, and convexedly stretch in the inwall of this keyhole with an end, and should in lock pin comprise with the corresponding master of this concavo-convex key bit in lock pin and with the interior lock pin of the corresponding pair of this deep mixed recess.This sleeve pipe then is placed in the periphery of this lock body, and lock pin, outer lock pin and spring are limited in this stepped pin-and-hole and this pin-and-hole of this connection in will being somebody's turn to do, and differs from formation one annular groove with the section of lock body outside.So, this key just can insert keyhole, and pushing tow should be somebody's turn to do outer lock pin and form opening by interior lock pin interlock.

Burglar-proof mechanism comprises having a vertical flange before above-mentioned, and be inserted in the anti-drill bushing of this annular groove with this flange, and the preceding anti-drilling steel disc that is loaded on this lock body and this inner lock core front end face and anti-drilling inner room, anti-drilling steel disc all have the perforate that communicates with this keyhole with this anti-drill bushing before this.So, can prevent that just the thief from being pierced by keyhole with electric drill, destroy this inside and outside lock pin and open the gate inhibition.

Above-mentioned back burglar-proof mechanism comprises the protecting against shock rod iron that is installed in this inner lock core back segment and is fixed in the anti-drilling steel disc of this inner lock core back segment end face by the core blind nut that spiral shell is located at this inner lock core back segment, the end face of inner lock core back segment is formed with a translot and a vertical blind hole, this blind hole can pack into successively spring and alignment pin, this rear defence drill steel sheet has slotted eye corresponding with this translot and blind hole and breach, one distal process of this alignment pin is stretched among the breach, rotates with respect to inner lock core to limit this dead bolt.The tail end both sides of this dead bolt have flange, and with this tail end this translot of packing into, and its front end passes the perforate of the slotted eye and the core blind nut of anti-drilling sheet, and fix in vertical mode.So, can prevent that just the thief from being stretched into by this keyhole with punching pin, impact this core end (or directly destroying this core end), dead bolt is separated with core, rotate dead bolt again and open the gate inhibition with electric drill.

Make the method for this key, be followed successively by following steps: form the spoon body, and form the height key bit in the key bit portion of this spoon body; Form the round bar shape loop bar, and vertically form a breach at this loop bar; This loop bar is combined, to form the groove that bottom land has concavo-convex key bit with the key bit portion of this spoon body with this breach; Side face forms the deep mixed recess of plural number outside this loop bar.Wherein, side face forms the deep mixed recess of plural number and can carry out separately outside this loop bar, also can form the round bar shape loop bar, and carry out in the lump when this loop bar vertically forms a breach.

The utility model is described in further detail below in conjunction with embodiment and accompanying drawing.

Fig. 1 is the stereogram of the utility model key and core.

Fig. 2 is the exploded view of the utility model key, wherein shows spoon body, loop bar and the collar.

Fig. 3 is the three-dimensional exploded view of the utility model key and core, wherein lock body and inner lock core be with part section mode show with the lock core hole of this lock body and with the perpendicular pin-and-hole of keyhole of this inner lock core.

Fig. 4 a is the longitudinal section view of the utility model core.

Fig. 4 b is that the core of Fig. 4 a inserts key, lock pin in the ejection master and be the longitudinal section view of opening.

Fig. 5 a is the core of the utility model longitudinal section view vertical with the longitudinal section of Fig. 4 a.

Fig. 5 b is that the core of Fig. 5 a inserts key, lock pin in the ejection pair and be the longitudinal section view of opening.

Fig. 6 is the plan view of lock pin in the various masters of the utility model.

Fig. 7 is the plan view of lock pin in the various pairs of the utility model.

Fig. 8 is the plan view of the various outer lock pins of the utility model.

Embodiment:

As shown in Figure 1, key of the utility model and core comprise: key 1 and core 4.

Key 1 comprises spoon body 10 and loop bar 20, and spoon body 10 is made of key bit portion 12 that is provided with concavo-convex key bit 120 and the shank of the key portion 14 that is formed at this key bit root; It is coniform that loop bar 20 is that an end forms, the other end vertically forms the round bar of breach 22, loop bar 20 combines with the key bit portion 12 of spoon body 10 with breach 22 and forms the groove 2 that bottom land has concavo-convex key bit, as shown in Figures 1 and 2, wherein loop bar 20 is matched with the concave point 16 of key bit portion 12 roots with the salient point 26 that is formed at breach 22 front ends, is packed in key bit portion 12 roots of spoon body with the collar 3 again and combines with spoon body 10.In addition, side face also is provided with the deep mixed recess 24 of plural number outside the loop bar 20, recess 24 be coniform and its bottom mild.Wherein, the number of key bit 120 recessed profiles of tooth and recess 24 can be increased and decreased and be changed with the interval at needs, and in the present embodiment, key bit 120 recessed profiles of tooth and recess 24 are five, and recess 24 forms row in the both sides of breach 22 respectively.

The manufacture method of key 1 can form spoon body 10 and loop bar 20 earlier, go out the key bit 120 of spoon body 10 again with the processing machine turnning and milling of the copy machine of general manufacturing pancake key or automation equipment, and the processing machine turnning and milling that utilizes movingization equipment goes out the breach 22 of loop bar 20, and then assembled, and utilize in addition packing of the collar 3, mill out tapered recess 24 with the copy machine of the recess of general manufacturing round key or the processing machine drill of automation equipment more at last.

As shown in Figure 3, core 4 comprises lock body 40, inner lock core 42, preceding burglar-proof mechanism 46, back burglar-proof mechanism 48, dead bolt 52 and sleeve pipe 54.Lock body 40 is a hollow form cylinder, which is provided with the pin-and-hole 402 of the lock core hole 400 that vertically runs through, some and lock core hole 400 vertical perforations, 404 and be formed at lock body 40 the outside front end the section differ from 412, the front end of lock core hole 400 is provided with two stage sections and differs from 406, wherein the number of pin-and-hole 402 and interval are corresponding with groove 2 recessed profiles of tooth, the number of pin-and-hole 404 and corresponding with recess 24 at interval.

The central part of inner lock core 42 is provided with keyhole 420, and the stepped pin-and-hole 422 of some vertical perforations with this keyhole, 424, inner lock core 42 is inserted in the lock core hole 400 of lock body 40, and be matched with two stage sections with the flange 428 that is formed at its front end and differ from 406 minor diameter place and locate, wherein stepped pin-and-hole 422,424 respectively with the pin-and-hole 402 of lock body 40,404 are connected, and lock pin 430 in packing in regular turn, 432 (lock pin 430 in main, secondary interior lock pins 432), outer lock pin 408 and spring 410 are set in the periphery of lock body 40 again with sleeve pipe 54, and with interior lock pin 430,432, in the stepped pin-and-hole 422,424 that outer lock pin 408 and spring 410 are limited to this connection and the pin-and-hole 402, and differ from 412 formation, one annular groove with the section of lock body 40 outside front ends.If shown in Fig. 4 a or Fig. 4 b, get loose for preventing sleeve pipe 54, can enclose a shrinkage pool 416 in lock body 40 peripheries, and form recess 542 with shrinkage pool 416 opposite position punching press sleeve pipes 54.

Before burglar-proof mechanism 46 anti-drilling steel disc 460 and anti-drill bushing 464 before comprising, preceding anti-drilling steel disc 460 is the plectanes with circular hole 462, and is installed in two stage of this lock body section and differs from 406 major diameter place, shown in Fig. 4 a and Fig. 4 b.In the anti-drill bushing 464 is the cover-shaped body that has circular hole 466 and have longitudinal sleeve edge 468 near edge, as shown in Figure 3, and differ from 412 formed annular grooves with the section that cover edge 468 is inserted in sleeve pipe 54 and lock body 40 outside front ends, shown in Fig. 4 a, Fig. 4 b or Fig. 5 a, Fig. 5 b.Wherein circular hole 462 all communicates with keyhole 420 with circular hole 466, key 1 can be inserted by anti-drill bushing 44 sides, lock pin 430 in the pushing tow, 432 form inner lock core 42 can be with respect to the opening of lock body 40 rotations, again by the rotation of key 1, interlock has the dead bolt 52 of folding ditch 522, makes the mechanism that is linked to dead bolt 52 drive latch mechanism and unblanks.And preceding anti-drilling steel disc 460 and anti-drill bushing 464 are all made by the steel of high rigidity, core 4 is had prevent the function that the thief destroys with electric drill.

Interior lock pin 430,432 can be T font or the middle font lock pin that radially has flange 431, as Figure 6 and Figure 7, or any suitable shape, and be positioned stepped lockpin hole 422 with flange 431,424, and convexedly stretch in wall within the keyhole 420 with an end, and as Fig. 4 a, 4b and shown in Figure 5, the end that main interior lock pin 430 convexedly stretches in keyhole 420 inwalls forms level and smooth cambered surface, to cooperate the recessed profile of tooth of key bit 120; The end that secondary interior lock pin 432 convexedly stretches in keyhole 420 inwalls then forms taper shape, cooperating recesses 24.The two ends of the other end of interior lock pin 430,432 and outer lock pin 408 all form level and smooth cambered surface.

So, when key 1 inserts keyhole 420, but lock pin 430 in the recessed profile of tooth of key bit 120 and recess 24 pushing tows, 432 via outer lock pin 408 compression springs 410, lock pin 430,432 is done displacement in various degree in making, and imports key bit 120 and recess 24, can be and form inner lock core 42 with respect to the opening of lock body 40 rotations, shown in Fig. 4 b and Fig. 5 b.After key 1 is transferred to, then recover locking state by the restoring force of this spring 410.And, because interior lock pin 430,432 all is designed to all to be retracted into inner lock core 42, therefore key 1 of the present utility model does not have directionality, can arbitrarily angledly insert, and lock pin 430 in forwarding to, 432 fit into the recessed profile of tooth and the recess 24 of key bit 120, but and make core 42 present opening.

Outer lock pin 408 is mainly shown in Figure 8 I-shaped, but be lock pin 430 in making, 432 all can all be retracted into inner lock core 42, when interior lock pin 430,432 when oversize, as the interior lock pin G of Fig. 6, then must cooperate cup-shaped outer lock pin B shown in Figure 8, all be retracted into the stroke of inner lock core 42 for lock pin in this, as 430G and the 408B of Fig. 4 b.In addition, for preventing that the thief from inserting this keyhole with foreign matter, and brute force is reversed, make I-shaped outer lock pin by centre narrower place fracture, force inner lock core 42 to rotate with respect to lock body 40, partly outer lock pin can be the column made from the high rigidity steel, shown in the C of the 408C of Fig. 5 and Fig. 8, to strengthen the anti-shearing force of outer lock pin 408.

As shown in Figure 3, the back segment of inner lock core 42 has thread 434, the pin-and-hole 436 that laterally runs through and the translot 438 that is formed at this back segment end face and the vertical blind hole 440 around being formed at.

The core blind nut 484 that back burglar-proof mechanism 48 is located at inner lock core 42 back segments by the protecting against shock rod iron 482 that laterally penetrates this pin-and-hole 436, by spiral shell is fixed in the rear defence drill steel sheet 490 of inner lock core 42 back segment ends and the spring 496 and the alignment pin 498 of the blind hole 440 of packing in regular turn formed.This core blind nut 484 has the thread 486 that is formed at internal perisporium and is formed at the colored shape perforate 488 of end face, and this flower shape perforate 488 is formed by connecting by some roundlet arcs.Rear defence drill steel sheet 490 has slotted eye 492 and the breach 494 corresponding with this translot 438 and this blind hole 440.

Dead bolt 52 is that the two sides has the steel plate body that folding ditch 522 and tail end both sides have flange 524, as Fig. 3, Fig. 4 a, 4b and shown in Figure 5, this dead bolt 52 be with this tail end translot 438 of packing into, and its front end passes the colored shape perforate 488 of the slotted eye 492 of rear defence drill steel sheet 490 and core blind nut 484 and vertical fixing.Wherein spiral shell is located at the back segment of inner lock core 42 to this core blind nut 484 by thread 486 is meshed with the thread 434 of inner lock core 42 back segments, and makes anti-drilling steel disc 490 prop up the flange 524 of dead bolt 52 tail ends, makes dead bolt 52 be fixed in the rear end.And the reduced diameter section 499 of alignment pin 498 1 ends just is stretched in the breach 494 of rear defence drill steel sheet 490, and dead bolt 52 can't be rotated with respect to inner lock core 42.

Therefore, because being spiral shells, this protecting against shock rod iron 482 and this core blind nut 484 be located at inner lock core 42 back segments with fixing rear defence drill steel sheet 490, and this protecting against shock rod iron 482, this core blind nut 484 and this rear defence drill steel sheet 490 are all made by the steel of high rigidity, so can prevent the thief is stretched into by keyhole 420 with punching pin, impact core 4 back segments, dead bolt 52 and inner lock core 42 are broken away from; And pierce by keyhole 420 with electric drill, destroy strong destructions such as whole core back segment, rotate dead bolt 52 again to open the gate inhibition.

In addition, as Fig. 4 a, shown in the 4b, lock body 40 also is provided with and the lock core hole 400 vertical hoodle holes 414 that communicate, 42 of inner lock cores are provided with the locating hole 442 corresponding but smaller with hoodle hole 560, are equiped with hoodle 562 and spring 564 in this hoodle hole 414, in order to insert keyhole 420 when key 1 and to form inner lock core 42 can be with respect to the opening of lock body 40 rotations the time, hoodle 562 is absorbed in locating hole 442 and sends clear and melodious sound and slight vibrations, the identification of returning as blocking.

Compared with prior art, the utlity model has following characteristics:

(1) key 1 of the present utility model has by 20 combinations of spoon body 10 and loop bar and forms the groove 2 that bottom land has concavo-convex key bit 120, and the deep mixed recess 24 of loop bar 20 outer peripheral faces, therefore be difficult for opening with special tool(s)s such as bearded needle or iron wires, and the recessed profile of tooth of core 4 and key bit 120 and recess 24 corresponding interior lock pins 430,432, if with lock pin 430 in the master of the steel of seven kinds of multi-form, length shown in Figure 6; Four kinds of multi-form, length shown in Figure 7 and lower end form tapering, dig as stolen with theft or with technology, then can not put forth effort secondary in lock pin 432; And shown in Figure 3 one classify lock pin 430 in several five masters as and for lock pin 432 in five of several two row secondary is example, its interior lock pin combination that can arrange in pairs or groups amounts to 45 * 75 * 45=17,623,416,832 kinds,, therefore has the antitheft characteristic of height so it is difficult for assembly very much.

(2) in addition, burglar-proof mechanism 46 and back burglar-proof mechanism 48 before core 4 of the present utility model is equiped with, constitute the preceding antitheft steel disc 460 of preceding burglar-proof mechanism 46 and prevent drill bushing 464, steel lock pin 430 with the manufacturing of high rigidity steel, 432, and constitute back burglar-proof mechanism 48 to impact rod iron 482, core blind nut 484 and rear defence drill steel sheet 490, therefore be difficult for foreign matter strong destructions such as punching pin or electric drills.

(3) the utility model key 1 has by 20 combinations of spoon body 10 and loop bar and forms the groove 2 that bottom land has concavo-convex key bit 120, so transreplication not.And the interior lock pin 430,432 of the utility model core 4 all is designed to all to be retracted into inner lock core 42, and therefore key of the present utility model does not have directionality.

Below only be illustrated, but embodiment of the present utility model is not restricted to the described embodiments with regard to most preferred embodiment of the present utility model.For example:

Modes such as spot welding, welding and riveted joint can be heavily adopted in the combination of spoon body 10 and loop bar 20.

More than each to change other effects that example obtained identical with aforementioned most preferred embodiment.

Claims (13)

1, a kind of key comprises:

The spoon body, this spoon body is made of key bit portion that is provided with key bit and the shank of the key portion that is formed at this key bit portion root; And

Loop bar, this loop bar are the round bars that vertically forms a breach, and this loop bar combines with the key bit portion of spoon body with its breach and forms the groove that bottom land has concavo-convex key bit, and the outer peripheral face of this loop bar is established the deep mixed recess of plural number.

2, key according to claim 1 is characterized in that the front end of the breach of loop bar has salient point, and the root of spoon body key bit portion has concave point.

3, key according to claim 1 is characterized in that loop bar is packed in the key bit portion root of spoon body by the collar with it and combines with the spoon body.

4, key according to claim 1 is characterized in that recess is taper shape and the bottom is mild.

5, a kind of core comprises

It is poor that lock body, this lock body have the pin-and-hole of the lock core hole that vertically runs through, some and the vertical perforation of this lock core hole and be formed at outside this lock body the section of Zhou Qianduan;

Inner lock core, overlap in the lock core hole of this lock body of packing into, this inner lock core has keyhole, and the stepped pin-and-hole of some vertical perforations with this keyhole, this stepped pin-and-hole is connected with the lock body pin-and-hole, and can pack in regular turn interior lock pin, outer lock pin and spring, should radially have a flange by interior lock pin, and be positioned this stepped pin-and-hole with this flange, and convexedly stretch in the inwall of this keyhole with the other end, and should in lock pin comprise main in lock pin and secondary in lock pin;

Sleeve pipe is set in the periphery of this lock body, and interior lock pin, outer lock pin and spring is limited in the stepped pin-and-hole of inner lock core and lock body pin-and-hole of connection, and forms annular groove with the section difference of lock body outside;

Preceding burglar-proof mechanism comprises having a vertical flange, and is inserted in the anti-drill bushing of annular groove with this flange, and the preceding anti-drilling steel disc that is installed in lock body and inner lock core front end face and anti-drilling inner room, and anti-drilling steel disc all has the perforate that communicates with keyhole with anti-drill bushing before this;

Back burglar-proof mechanism, comprise the protecting against shock rod iron that is installed in this inner lock core back segment and be fixed in the anti-drilling steel disc of this inner lock core back segment end face by the core blind nut that spiral shell is located at this inner lock core back segment, the end face of this core lid has perforate, the end face of this inner lock core back segment is formed with translot and vertical blind hole, this blind hole can pack in regular turn spring and alignment pin, this rear defence drill steel sheet has and this translot and corresponding slotted eye of blind hole and breach, and a distal process of this alignment pin is stretched among the breach; And

Dead bolt, its tail end both sides have flange, and with pack into the translot of inner lock core back segment end face of its tail end, and its front end passes the perforate of the slotted eye and the core blind nut of anti-drilling sheet, and fix in vertical mode.

6, core according to claim 5, it is poor that the front end that it is characterized in that lock core hole is provided with two stage sections, and the flange of the front end of inner lock core is positioned the minor diameter place of two stage section differences, and preceding anti-drilling steel disc is installed in the major diameter place of two stage of this lock body section difference.

7, core according to claim 5 is characterized in that described outer lock pin is I-shaped, and the two ends of I-shaped outer lock pin are slick and sly cambered surface.

8, core according to claim 5 is characterized in that described outer lock pin is cup-shaped, and the bottom of cup-shaped outer lock pin is slick and sly cambered surface.

9, core according to claim 5 is characterized in that described outer lock pin is column shape, and the two ends of the outer lock pin of column are slick and sly cambered surface.

10, core according to claim 5 is characterized in that lock pin is the T font in the described master, and the two ends of lock pin are slick and sly cambered surface in the T font master.

11, core according to claim 5 is characterized in that lock pin is middle font in the described master, and the two ends of lock pin are slick and sly cambered surface in the middle font master.

12, core according to claim 5 is characterized in that lock pin is the T font in the described pair, and the end that the interior lock pin of T font pair stretches into keyhole is that the arc end is coniform, and the other end then is slick and sly cambered surface.

13, core according to claim 5 is characterized in that lock pin is middle font in the described pair, and the end that the interior lock pin of middle font pair stretches into keyhole is that the arc end is coniform, and the other end then is slick and sly cambered surface.

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