CN1262375A

CN1262375A - Key and lock cylinder and method for manufacturing the key

Info

Publication number: CN1262375A
Application number: CN 99100527
Authority: CN
Inventors: 罗俊朋
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-02-05
Filing date: 1999-02-05
Publication date: 2000-08-09
Anticipated expiration: 2019-02-05
Also published as: CN1088139C

Abstract

The invention relates to a key and a lock core. The key is a groove with concave-convex key teeth at the bottom of the groove, which is formed by combining a key body and a sleeve rod. The outer peripheral surface of the loop bar is covered with a plurality of concave parts with different depths, and the lock core mainly comprises a lock body, an inner lock core, a lock tongue and a sleeve. The lock body and the inner lock core are provided with pin holes corresponding to the key teeth and the concave parts, and the pin holes are respectively provided with an inner lock pin and an outer lock pin. The front anti-theft mechanism comprising a front anti-drilling steel sheet and an anti-drilling steel sleeve is arranged at the key insertion end of the lock body and the inner lock core, and the rear anti-theft mechanism comprising an anti-impact steel bar, a rear anti-drilling steel sheet and a positioning pin is arranged at the rear section of the inner lock core. The lock core and the key have high anti-theft performance, are not easy to be damaged by electric drills or foreign matters, and are not easy to be copied.

Description

Key and core and make the method for this key

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

The invention still further relates to the method for making this key.

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, utilize this 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 93 2 10622.6) 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 its theftproof 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, to prevent that this key can be easily

At general locksmith copy.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 comprises lock body, inner lock core, back burglar-proof mechanism, dead bolt, sleeve pipe and preceding burglar-proof mechanism.Wherein lock body 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 the section of outside front end of this lock body poor; Inner lock core is provided with keyhole, and the stepped pin-and-hole of some vertical perforations with this keyhole, 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 this 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 both sides of dead bolt have flange, 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 part section mode.

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

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 of the present invention longitudinal section view vertical with the longitudinal section view direction of Fig. 4.

Fig. 7 is that the core of Fig. 6 inserts key, 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; It is coniform that loop bar 20 is that an end forms, and the other end vertically forms the round bar of breach 22, and loop bar 20 combine the groove 2 that the formation bottom land has concavo-convex key bit with breach 22 with the key bit portion 12 of spoon body 10.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 10 with the collar 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 bottom 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 key bit 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 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, 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 outside front ends.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 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. 4,5 figure or Fig. 6,7.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, by the rotation of key 1, interlock has the dead bolt 52 of folding ditch 522 again, 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 the inwall of keyhole 420 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 is transferred to, then recover 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, with the stroke that provides lock pin in this all to be retracted into inner lock core 42, 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, partly outer lock pin 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 end face and the vertical blind hole 440 around being formed at.

The spring 496 and the alignment pin 498 of the core blind nut 484 that back burglar-proof mechanism 48 is located at this back segment by protecting against shock rod iron 482 that laterally penetrates this pin-and-hole 436 and spiral shell, the rear defence drill steel sheet 490 that is fixed in this back segment end face and the blind hole 440 of packing into are 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 connected to form by some roundlet arcs.Rear defence drill steel sheet 490 has slotted eye 492 and the breach 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 both sides have flange 524, as Fig. 3, Fig. 4, shown in Fig. 5 and Fig. 6,7.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 45 * 75 * 45=17,623,416,832 kinds,, therefore has 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 20 combinations of spoon body 10 and loop bar 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 to 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:

a spoon body, the spoon body is composed of a spoon tooth portion provided with spoon teeth and a spoon handle formed at the root of the spoon tooth portion;

And the sleeve rod, the sleeve rod is a round rod with a gap formed in the longitudinal direction, the gap of the sleeve rod is combined with the spoon tooth part of the spoon body to form a groove with concave and convex spoon teeth at the bottom of the groove, and the outer peripheral surface of the sleeve rod is provided with multiple depths Different recesses.

2. The key according to claim 1, characterized in that the sleeve rod is combined with the key body by pressing against the root of the tooth part of the key body with a collar.

3. The key according to claim 1, characterized in that the recess is conical with a flat bottom.

4. A lock cylinder capable of being opened with a key as claimed in claim 1, characterized in that it comprises:

The lock body has a lock core hole extending longitudinally, a number of pin holes vertically penetrating through the lock core hole, and a step difference formed at the front end of the outer periphery of the lock body;

The inner lock core is set into the lock core hole of the lock body. The inner lock core has a keyhole and several stepped pin holes perpendicular to the keyhole. The stepped pin holes are connected with the pin holes of the lock body, and can be sequentially Install the inner lock pin, outer lock pin and spring. The inner lock pin has a flange in the radial direction, and the flange is positioned in the stepped pin hole, and one end protrudes from the inner wall of the keyhole, and the inner lock pin includes The main inner lock pin corresponding to the concave-convex key teeth and the auxiliary inner lock pin corresponding to the recesses of different depths;

The sleeve is fitted on the outer periphery of the lock body, and the inner lock pin, the outer lock pin and the spring are limited in the connected stepped pin hole and pin hole, and an annular groove is formed with the step difference between the lock body and the outer periphery;

The front anti-theft mechanism includes a longitudinal flange, and the anti-drilling sleeve inserted into the annular groove by the flange, and the front anti-drilling steel sheet installed between the lock body and the front end surface of the inner lock core and the anti-drilling sleeve. Both the front anti-drilling steel sheet and the anti-drilling sleeve have openings communicating with the keyhole;

The rear anti-theft mechanism includes an anti-impact steel rod mounted on the rear section of the inner lock core and a rear anti-drilling steel sheet fixed to the end face of the rear section with a lock core screw cover screwed on the rear section, and the lock core screw cover The end face of the rear section has a hole, and the end face of the rear section is formed with a transverse groove and a longitudinal blind hole. The blind hole can be loaded with springs and positioning pins in sequence. The rear anti-drilling steel sheet has slot holes corresponding to the transverse groove and the blind hole. And the notch, one end of the positioning pin protrudes in the notch; and the lock bolt, with flanges on both sides of the tail end, the tail end of the lock tongue is inserted into the transverse groove, and its front end passes through the anti-drill slot and the lock core The opening of the screw cap is fixed vertically.

5. The lock core according to claim 4, characterized in that the front anti-drilling steel sheet, the rear anti-drilling steel sheet, the anti-impact steel rod, the lock core screw cap and the anti-drilling sleeve are all made of high-hardness steel.

6. The lock cylinder according to claim 4, characterized in that the outer locking pin is in the shape of an I-shape.

7. The lock cylinder according to claim 4, characterized in that the outer locking pin is cup-shaped.

8. The lock core according to claim 4, characterized in that the outer locking pin is columnar.

9. The lock core according to claim 4, characterized in that the main inner locking pin is T-shaped.

10. The lock core according to claim 4, characterized in that the main inner lock pin is in the shape of a Chinese character.

11. The lock core according to claim 4, characterized in that the auxiliary inner lock pin is T-shaped.

12. The lock core according to claim 4, characterized in that the auxiliary inner lock pin is in the shape of a Chinese character.

13. The lock core according to claim 6, characterized in that the two ends of the I-shaped outer lock pin form a smooth arc surface.

14. The lock cylinder according to claim 7, characterized in that the bottom of the cup-shaped outer locking pin forms a smooth arc surface.

15. The lock core according to claim 8, characterized in that both ends of the cylindrical outer locking pin form a smooth arc surface.

16. The lock core according to claim 4, characterized in that both ends of the main inner lock pin form a smooth arc surface.

17. The lock core according to claim 11 or 12, characterized in that one end of the auxiliary inner lock pin extending into the keyhole forms a conical arc end, and the other end forms a smooth arc surface.

18. A method of manufacturing a key as claimed in claim 1, comprising the steps of:

forming a spoon body, and forming high and low teeth on the spoon tooth part of the spoon body;

Form a round rod-shaped sleeve rod, and form a gap in the longitudinal direction of the sleeve rod;

The sleeve rod is combined with the spoon tooth part of the spoon body through the gap to form a groove with concave and convex spoon teeth at the bottom of the groove.

19. The method according to claim 18, characterized in that a plurality of recesses with different depths are formed on the outer peripheral surface of the rod.