CN2403856Y

CN2403856Y - Key and lock barrel

Info

Publication number: CN2403856Y
Application number: CN 99243771
Authority: CN
Inventors: 罗俊朋
Original assignee: 罗俊朋
Current assignee: Luo Shengteng
Priority date: 1999-08-25
Filing date: 1999-08-25
Publication date: 2000-11-01
Anticipated expiration: 2009-08-25

Abstract

The utility model relates to a key and lock core. A key body and a sleeve rod are combined to form the key which is a groove with concave and convex key teeth. The periphery surface of the sleeve rod is covered and provided with a plurality of concave parts with unequal depths. The lock core is mainly composed of a lock body, an inner lock core, a lock tongue and a sleeve pipe. The lock body and the inner lock core are provided with pin holes which are corresponding to the key teeth and the concave parts. Inner lock pins and outer lock pins are respectively arranged in the pin holes. Key insertion ends of the lock body and the lock core are provided with a front theft protection mechanism which comprises a front drilling proof steel sheet and drilling proof steel. The back section of the inner lock core is provided with a back theft protection mechanism which comprises an impact proof steel rod, a back drilling proof steel sheet and positioning pin. The utility model has the advantage of high theft protection performance, and is not easy to destroy by an electric drill or foreign matters, and the key is not easy to copy.

Description

Key and core

The present invention relates to a kind of key and core, refer to a kind of have height anti-theft effect key and core especially.

The part that common key inserts lockhole is flat and 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, utilizing this is shaggy tooth portion or should the taper shape recess, key can ejection core inside screening or lock pin, make screening or core present the state of unlatching and reach the purpose of unblanking.But because commonly used, general locksmith all has the copy machine for traditional pancake key and round key, is therefore lost antitheft effect by a large amount of copies of people easily.And general one-sided pancake 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 the shortcoming that is difficult for.The Chinese utility model patent that patent applicant of the present invention had (patent No. is ZL 93210622.6) discloses a kind of " key and core ", this key combines with the 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 the copy and does not have directionality., because this key only has recessed guide groove, utilized special instrument (as bearded needle or iron wire) to open by the people easily.In addition, this core is directly gone into (or directly insert the key hole with foreign matter and change firmly) with electric drill by the key hole drill by the people easily in the end that this key inserts, and destroys the lock pin of inside and opens; Perhaps, stretched into by the key hole with punching pin by the people easily, impact this core end (or directly destroying this core end), dead bolt is separated with core, rotate dead bolt again and open, thereby reduce theftproof altogether with electric drill.

The object of the present invention is to provide a kind of key and core, the antitheft characteristic that it has height is difficult for key operated with non-this core, and is difficult for being destroyed by electric drill or foreign matter.

Another object of the present invention is to provide a kind of key and core, this key is difficult for the copy and the directionality of not having.

For achieving the above object, the invention provides a kind of key and core, this key comprises spoon body and loop bar, and the 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 is the vertical round bar of formation one breach.This loop bar combines with the key bit portion of spoon body with the breach on it and forms the groove that bottom land has concavo-convex key bit, can be easily at general locksmith copy 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 loop bar especially, to increase the degree of difficulty of opening the core that is used with this key.This recess can form row in the both sides of this groove respectively, or is any irregular arrangement.

This core comprise lock body, inner lock core, back burglar-proof mechanism, dead bolt, sleeve pipe and before burglar-proof mechanism, lock body outside front end section poor that be 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 be formed at this lock body wherein; Inner lock core is provided with keyhole, and stepped pin-and-hole some and that this keyhole hangs down and connects, pack into the lock core hole of lock body of this inner lock core cover, wherein this stepped pin-and-hole is connected with the pin-and-hole of this lock body, and 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 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 lock body, and interior lock pin, outer lock pin and spring is limited in the stepped pin-and-hole and pin-and-hole of connection, and forms an annular groove with the section difference of lock body outside.So, just can insert keyhole by this key, pushing tow should be somebody's turn to do outer lock pin and form opening by interior lock pin interlock.

Preceding burglar-proof mechanism comprises having a vertical flange, and is inserted in the anti-drill bushing of annular groove with 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 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 this keyhole with electric drill, destroy this inside and outside lock pin and open the gate inhibition.Back burglar-proof mechanism comprises the protecting against shock rod iron that is installed in the inner lock core back segment and is fixed in the rear defence drill steel sheet of back segment end face with the core blind nut that a spiral shell is located at this back segment.The end face of this core blind nut has perforate, and the end face of back segment is formed with a translot and a vertical blind hole, this blind hole can pack in regular turn spring and alignment pin, and rear defence drill steel sheet has slotted eye corresponding with this translot and blind hole and breach.One distal process of alignment pin is stretched among this breach, to limit the rotation of this dead bolt with respect to inner lock core.The tail end of dead bolt is stretched among this breach, and with the tail end translot of packing into, and its front end passes the perforate of the slotted eye of anti-drilling sheet and core blind nut and vertical fixing.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.

The drawing explanation:

Fig. 1 is the stereogram of key of the present invention and core.

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

Fig. 3 is the three-dimensional exploded view of key of the present invention and core, and wherein lock body and inner lock core are to show and the lock core hole of this lock body and the perpendicular pin-and-hole that runs through of keyhole of this inner lock core in the cut-away section mode.

Fig. 4 is the longitudinal section view of invention core.

Fig. 5 is that the core of Fig. 4 inserts key, lock pin in the ejection master and be the longitudinal section view of opening.

Fig. 6 is the core longitudinal section view vertical with the longitudinal section view aspect of Fig. 4 of invention.

Fig. 7 inserts key for Fig. 6 changes core, lock pin in the ejection pair and be the longitudinal section view of opening.

Fig. 8 is the plan view of lock pin in the various masters of the present invention.

Fig. 9 is the plan view of lock pin in the various pairs of the present invention.

Figure 10 is the plan view of the various outer lock pins of the present invention.

Below with reference to accompanying drawing, describe the embodiment of key of the present invention and core in detail.

As shown in Figure 1, key of the present invention and core comprise: key 1 and core 4.As shown in Figures 1 and 2, 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 portion root; Loop bar 20 is that an end forms taper shape, and the other end vertically forms the round bar of breach 22, and 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.Wherein loop bar 20 is matched with the concave point 16 of key bit portion 12 roots with the salient point 26 that forms breach 22 front ends, is packed in key bit portion 12 roots of spoon body 10 with loop bar 3 again and combines with spoon body 10.In addition, the outer peripheral face of loop bar 20 also is provided with the deep mixed recess 24 of plural number, recess 24 be coniform and its end mild.Wherein, the number of concavo-convex 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, the recessed profile of tooth and the recess 24 of concavo-convex spoon body 120 are four, and recess 24 forms row in the both sides of breach 22 respectively.

The manufacturing of key 1 can be shaped earlier spoon body 10 and loop bar 20, go out the concavo-convex key bit 120 of spoon body 10 again with the processing machine turnning and milling of the copy machine of general manufacturing pancake shaped as key bit or automation equipment, and the processing machine turnning and milling that utilizes automation equipment goes out the breach 22 of loop bar 20, and then assembled, and utilize in addition packing of the collar 3, mill out conical 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 core 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, and the section of front end differs from 412 around which is provided with the pin-and-hole 402,404 of the lock core hole 400 that vertically runs through, some and lock core hole 400 vertical perforations and being formed at outside the lock body 40.The front end of lock core hole 400 is provided with two stage sections and differs from 406, and wherein the number of pin-and-hole 402 is with corresponding with the recessed profile of tooth of groove 2 at interval, and the number of pin-and-hole 404 and interval are corresponding with recess 24.The central part of inner lock core 42 is provided with keyhole 420, and the stepped pin-and-hole 422,424 of some vertical perforations with this keyhole.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 reduced diameter section 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 pins 430 in main, lock pin 432 in secondary), outer lock pin 408 and spring 410, be set in outside the lock body 40 with sleeve pipe 54 again and enclose, and with interior lock pin 430,432, outer lock pin 408 and spring 410 are limited to the stepped pin-and-hole 422 of this connection, 424 with pin-and-hole 402 in, and differ from 412 formation one annular grooves (not shown) with the section of lock body 40 outsides.As Fig. 4 or shown in Figure 5, 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 enlarged diameter section place, as Fig. 4 or shown in Figure 5.Anti-drill bushing 464 is that the center has circular hole 466 and has the cover-shaped body of longitudinal sleeve edge 468 near edge, as shown in Figure 3, and differs 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, as Fig. 4,5 or Fig. 6,7 shown in.Wherein, circular hole 462 all communicates with keyhole 420 with circular hole 466, key 1 can be inserted by anti-drill bushing 464 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, nationality is by the rotation of key 1 again, and interlock has the dead bolt 52 of folding ditch 522, makes the mechanism that is linked to dead bolt 52 drive latch mechanism (not shown) and unblanks.And preceding anti-drilling steel disc 460 and anti-drill bushing 464 are all made by the steel of high rigidity, can make core 4 have the function of the thief of preventing with electric drill destruction.Interior lock pin 430,432 can be T font or the middle font lock pin that radially has flange 431, as Fig. 8 and shown in Figure 9, or any suitable shape, and be positioned stepped pin-and-hole 422,424 with flange 431, and convexedly stretch in keyhole 420 inwalls with an end, as Fig. 4, Fig. 5 and Fig. 6, shown in Figure 7, 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, with 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, as Fig. 5 and shown in Figure 7.After key 1 was transferred to, then nationality recovered the shape of locking by the restoring force of this spring 410.And, because interior lock pin 430,432 is designed to all can all be retracted into inner lock core 42, therefore the present invention's key 1 does not have directionality, can arbitrarily angled insertion and forward in lock pin 430,432 fit into the recessed profile of tooth and the recess 24 of key bit 120, but and make core 4 present opening.

Outer lock pin 408 mainly is I-shaped shown in Figure 10 A, 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, and interior lock pin G as shown in Figure 8 then must cooperate cup-shaped outer lock pin B as shown in figure 10, lock pin all is retracted into the stroke that is sold inside the country the heart 42 in this to provide, as 430G and the 408B of Fig. 5.In addition, for preventing that the thief from inserting this keyhole with foreign matter, and brute force is reversed and is made I-shaped outer lock pin by the fracture of narrower place, centre, force inner lock core 42 to rotate with respect to lock body 40, the outer lock pin of part can be the column that the high rigidity steel are made, shown in Fig. 6,7 408C and Figure 10 C, 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 face and the vertical blind hole 440 around being formed at.

Back burglar-proof mechanism 48 is located at this back segment core blind nut 484, is fixed in the rear defence drill steel sheet 490 of this back segment end face and the spring 496 and the alignment pin 498 of the blind hole 440 of packing in regular turn formed by protecting against shock rod iron 482 that laterally penetrates this pin-and-hole 436 and spiral shell.This pin heart 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 to be connected to form by some little circular arcs.Rear defence drill steel sheet 490 has slotted eye 492 and the goods 494 corresponding with translot 438 and blind hole 440.

Dead bolt 52 is that the two sides has the steel plate body that folding ditch 522 and tail end have flange 524, as Fig. 3, Fig. 4, and Fig. 5 and Fig. 6, shown in Figure 7.Dead bolt 52 is with the tail end translot 438 of packing into, and its front end passes the mode vertical fixing of the colored shape perforate 488 of the slotted eye 492 of rear defence drill steel sheet 490 and core blind nut 484.Wherein this core blind nut 484 is harmonious by the thread 434 of thread 486 and inner lock core 42 back segments and spiral shell is located at the back segment of inner lock core 42.And make rear defence drill steel sheet 490 be fixed in the back segment end face of inner lock core 42, rear defence drill steel sheet 490 props 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 this protecting against shock rod iron 482 and this core blind nut 484 are that spiral shell is located at inner lock core 42 back segments with the fixedly design of rear defence drill steel sheet 490, and this protecting against shock rod iron 482, core blind nut 484 and rear defence drill steel sheet 490 are all made by the steel of high rigidity, so can prevent that the thief from being 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 gate inhibition's method.

In addition, as Fig. 4, shown in Figure 5, 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 locating hole 442 corresponding with hoodle hole 414 but that the aperture is smaller, be equiped with hoodle 562 and spring 564 in this hoodle hole 414, in order to inserting keyhole 420 when key 1 and to form inner lock core 42 can be with respect to the opening of lock body 40 rotation the time, hoodle 562 is absorbed in locating hole 442 and sends clear and melodious sound and slightly shake, as the identification of blocking playback.

Modes such as the combination of spoon body 10 and loop bar 20 can also spot welding, welding and riveted joint for it.

Therefore, compare with known techniques, beneficial effect of the present invention can be summarized as follows:

(1) key 1 of the present invention 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 is difficult for special instrument unlatching such as bearded needle or iron wire.And the recessed profile of tooth of core 4 and key bit 120 and recess 24 corresponding in lock pins 430,432, if with lock pin 430 in the steel master of seven kinds of multi-form, length shown in Figure 8; Four kinds of multi-form, length shown in Figure 9 and lower end form tapering, dig lock pin 430 in then can not put forth effort secondary as stolen with theft or with technology; And one classify that lock pin 432 is example in five of lock pins 430 and two row in several five masters secondary as shown in Figure 3, its interior lock pin combination that can arrange in pairs or groups amounts to 4 ⁵* 7 ⁵* 4 ⁵=17,623,416,832 kinds,, therefore have the antitheft characteristic of height so it is not easy assembly very much.

(2) in addition, burglar-proof mechanism 46 and back burglar-proof mechanism 48 before core 4 of the present invention is equiped with, steel manufacturing with high rigidity constitutes the preceding anti-drilling steel disc 460 of preceding burglar-proof mechanism 46 and prevents drill bushing 464, steel lock pin 430,432, and protecting against shock rod iron 482, core blind nut 484 and the rear defence drill steel sheet 490 of formation back burglar-proof mechanism 48, therefore be difficult for foreign matter strong destructions such as punching pin or electric drills.

(3) the present invention's key 1 has by the combination of spoon body 10 loop bars 20 and forms the groove 2 that bottom land has concavo-convex key bit 120, therefore is difficult for copying.And the interior lock pin 430,432 of core 4 of the present invention all is designed to all be retracted into inner lock core 42, and therefore key 1 of the present invention does not have directionality.

The above is that just the present invention's preferred embodiment is illustrated, and embodiment form that only must know the present invention is not subjected to the restriction of this embodiment.

Claims

1. the present invention relates to a kind of key, it is characterized in that comprising:

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 key bit portion root;

And loop bar, this loop bar is the round bar that vertically forms a breach, and 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 loop bar is provided with the deep mixed recess of plural number again.

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

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

4. one kind can is characterized in that comprising with the key operated spoon heart as claimed in claim 1:

Lock body, have the pin-and-hole of the lock core hole that vertically runs through, some vertical perforations with lock core hole and be formed at lock body the outside front end the section poor;

Inner lock core, overlap the lock core hole of the lock body of packing into, inner lock core has the stepped pin-and-hole of keyhole and some vertical perforations with this keyhole, stepped pin-and-hole is connected with the pin-and-hole of lock body, and can pack in regular turn interior lock pin, outer lock pin and spring, interior lock pin radially has a flange, and is positioned stepped pin-and-hole with this flange, and convexedly stretch in the inwall of keyhole with an end, and interior lock pin comprise in the master who answers that communicates with concavo-convex key bit lock pin and with the corresponding pair of this deep mixed recess in lock pin;

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

Preceding burglar-proof mechanism comprises a vertical flange, and is inserted in the anti-drill bushing of this 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 section after this inner lock core and be fixed in the rear defence drill steel sheet of this back segment end face with the core blind nut that a spiral shell is located at this back segment, the end face of core blind nut has perforate, the end face of back segment is formed with a translot and a vertical blind hole, this blind hole can pack in regular turn spring and alignment pin, this rear defence drill steel sheet has slotted eye corresponding with translot and blind hole and breach, and a distal process of alignment pin is stretched among the breach;

And dead bolt, the tail end both sides have flange, and dead bolt is with the tail end translot of packing into, and the mode vertical fixing of the perforate of its front end by passing anti-drilling sheet slotted eye and core blind nut.

5. core according to claim 4, anti-drilling steel disc, rear defence drill steel sheet, protecting against shock rod iron, core blind nut and anti-drill bushing are all made by the high rigidity steel before it is characterized in that.

6. core according to claim 4 is characterized in that outer lock pin is I-shaped.

7. core according to claim 4 is characterized in that outer lock pin is cup-shaped.

8. core according to claim 4 is characterized in that outer lock pin is column.

9. core according to claim 4 is characterized in that main interior lock pin is the T font.

10. core according to claim 4 is characterized in that main interior lock pin is middle font.

11. core according to claim 4 is characterized in that secondary interior lock pin is the T font.

12. core according to claim 4 is characterized in that secondary interior lock pin is middle font.

13. core according to claim 6 is characterized in that the two ends of I-shaped outer lock pin form slick and sly shape cambered surface.

14. core according to claim 7 is characterized in that slick and sly shape cambered surface is formed on the bottom of cup-shaped outer lock pin.

15. core according to claim 8 is characterized in that the two ends of the outer lock pin of column form slick and sly shape cambered surface.

16. core according to claim 4 is characterized in that the two ends of main interior lock pin form slick and sly shape cambered surface.

17. according to claim 11 or 12 described cores, it is characterized in that secondary in the lock pin end that stretches into keyhole to form the arc end coniform, the other end then forms slick and sly shape cambered surface.