CN201246016Y

CN201246016Y - Mechanical cipher theft-proof door lock

Info

Publication number: CN201246016Y
Application number: CNU2008201417642U
Authority: CN
Inventors: 张蜀秦
Original assignee: TIANJIN HENGSHUN TECHNOLOGY Co Ltd
Current assignee: TIANJIN HENGSHUN TECHNOLOGY Co Ltd
Priority date: 2008-08-28
Filing date: 2008-08-28
Publication date: 2009-05-27
Anticipated expiration: 2018-08-28

Abstract

A mechanical coded safe-guard door lock comprises a threaded stepped mandrel passing through a door frame, and a threaded baffle plate and a perforated baffle plate arranged at the two side of the door frame, respectively, for fixing the mandrel. The mechanical coded safe-guard door lock is characterized in that a plurality of convex pins are arranged on the outer circumference of the mandrel along the radial direction, a code control mechanism large lock sleeve is arranged on the peripheral ring of the mandrel and is capable of sliding thereon, and code rings, a code changing ring, a baffle piece and a baffle plate are arranged inside the large lock sleeve. At least two sets of code rings are arranged, radial orderly arranged grooves with the same size are arranged on the two end surfaces of each code ring. A clamping pole matching with a clamping groove on the door frame is arranged at the threaded end of the mandrel. A spline is arranged on the large lock sleeve and matches with a splined hole formed on the perforated baffle plate which is used for fixing the mandrel. The locking and unlocking of the mechanical coded safe-guard door lock is controlled by the screwing in/out of the code control mechanism large lock sleeve with respect to the mandrel clamping pole and the door frame clamping groove, and the code can not be guessed by rotating the code rings, resulting in high safety. The mechanical coded safe-guard door lock also has the advantages of reasonable structure design, rapid and convenient use, and simple code changing procedures.

Description

A kind of mechanical code safe-guard door lock

Technical field

The utility model relates to a kind of mechanical code safe-guard door lock, belongs to the mechanical code lock technical field.

Background technology

Existing door lock is various in style, pattern is different, by its principle, mainly can be divided into key operated locking formula, mechanical cipher unlatching locking formula, electronic telecontrol alarm type.Traditional key operated locking formula and electronic telecontrol alarm type be not because the inherent shortcoming that itself exists is paid attention to by people more and more.The existing mechanical coded lock mainly is made up of cipher wheel and locking bar, cipher wheel can limit locking bar and move axially, and locking bar move axially the folding that can realize whole lockset, but this coded lock can be by the method perception cipher wheel of rotational password wheel and the mated condition between the locking bar motion, thereby speculative arbitration goes out password exactly, thereby security performance is lower.Door lock reasonable in design fundamentally solves the variety of issue that existing lockset exists, and becomes the task of top priority.

Summary of the invention

The utility model has overcome above-mentioned the deficiencies in the prior art, and its purpose is to provide a kind of mechanical code safe-guard door lock.

Above-mentioned purpose of the present utility model is achieved through the following technical solutions.

A kind of mechanical code safe-guard door lock, comprise the screw thread step mandrel that penetrates doorframe, and the screw thread baffle plate and the via hole baffle plate that are arranged on doorframe both sides fixed central spindle, be characterized in, it is step-like that described mandrel mandrel is screw thread, cylindrical radially has a plurality of protruding pins, circumferential hoop have can slide thereon, inside is provided with cipher ring, transfer the big cover of cipher control mechanism tapered end of a sign indicating number ring, catch, baffle plate.Described cipher ring is enclosed within to be transferred on the sign indicating number ring, radially is provided with a plurality of password signs on the password outer round surface, also is provided with a silk hole that can radially screw in jackscrew on it; Described accent sign indicating number encircles into shell-like, cylindrical radially is provided with a plurality of axial pass troughs, and the password sign on axial pass trough and the cipher ring outer round surface equidistantly and corresponding one by one transfers sign indicating number ring endoporus to cooperate with the mandrel activity, and be enclosed within on the mandrel, hole end surface has a groove that can rotate around mandrel in it; Described baffle plate is fixed on the big cover openend of tapered end, the big spring other end fixed thereon withstands on the catch that is arranged in the big cover of tapered end, catch is rounded, on its end face, have the breach of two symmetries vertically, breach platform radially is provided with two radial holes, each is provided with a little spring at least in the hole, along breach, respectively is inserted with a U type compressing tablet.

Described cipher ring has two groups at least, and the cipher ring both ends of the surface are provided with consistent size, regularly arranged radial type trench.

Described mandrel thread end be provided with doorframe on the card post of draw-in groove coupling.

Described tapered end puts the spline that the spline hole slot coupling offered on the via hole baffle plate that is provided with fixed central spindle is connected greatly.The cylindrical of the big cover of tapered end radially has two windows that can make cipher ring expose a part, is convenient to dial the commentaries on classics cipher ring.

The utility model reasonable in design is used efficient and conveniently, and it is simple to change password program, and it screws out unlatching and the locking of controlling door lock, security performance height by the big cover of cipher control mechanism tapered end for the screw-in of mandrel card post and doorframe draw-in groove.The rotational password ring is according to the sense of hearing and sense of touch examination password, and the radial type trench on each cipher ring end face just embeds mutually and is close to, and cipher ring can not be rotated, thereby has got rid of the possibility to the examination password.

Description of drawings

Introduce the utility model specific embodiment in detail below in conjunction with accompanying drawing.

As shown in Figure 1 and Figure 2, the utility model comprises threaded mandrel 10, and mandrel 10 is fixing with via hole baffle plate 2 by the screw thread baffle plate 19 that is arranged on door 1 both sides.Fixing card post 20 on the screw thread of threaded mandrel 10, on the cylindrical of threaded mandrel 10 big ends, be arranged with projection 5 and protruding pin 23 vertically, the tapered end big cover 6 of pulling ring on mandrel 10, spline 4 on it is separated with the spline hole slot 3 that matches with it on the via hole baffle plate 2, the big cover 6 of tapered end just can drive threaded mandrel 10 rotations by the groove and the projection 5 of its endoporus, be fixed on the card post 20 on threaded mandrel 10 screw threads, also rotation thereupon, or screw-in is fixed in the draw-in groove 21 of doorframe 22, or screw out draw-in groove 21, and screw in and be locking states, screw out and be opening.The slip of the big cover 6 of tapered end on threaded mandrel 10 determining the mandrel 10 card posts 20 and the screw-in of doorframe 22 draw-in grooves 21 to screw out, thus the unlatching of control lock and locking.

The big cover 6 of tapered end mainly is made up of cipher ring 12, accent sign indicating number ring 11, catch 13, baffle plate 14, mandrel 10.On the cylindrical of mandrel 10, planning is arranged vertically arranging a plurality of protruding pins 23, its effect is that a protruding pin 23 blocks an accent sign indicating number ring 11.Transfer 11 one-tenth shell-likes of sign indicating number ring, radially have a plurality of axial pass troughs on the cylindrical equidistantly, endoporus then cooperates with mandrel 10 activities, and be enclosed within on the mandrel 10, protruding pin 23 on the corresponding mandrel 10, interior hole end surface one place that transfers sign indicating number ring 11 has a groove, groove rotates, and the protruding pin of crossing on the mandrel 10 23 just can make accent sign indicating number ring 11 be placed on the mandrel 10.Transfer sign indicating number ring 11 to form by a plurality of, when being placed on the mandrel 10, each protruding pin 23 on the mandrel 10 just in time is in each interior cover of transferring sign indicating number ring 11, if groove is not corresponding with protruding pin 23, protruding pin 23 just is blocked on the end face of transferring cover in the sign indicating number ring 11, makes to transfer sign indicating number ring 11 not do axially-movable along mandrel 10.12 one-tenth logical ring-types of cipher ring radially equidistantly are carved with password sign 15 on the surface of cylindrical, both ends of the surface then are the regularly arranged radial type trench of consistent size, and cylindrical also is provided with a silk hole that can radially screw in jackscrew 16.Cipher ring 12 is enclosed within to be transferred on the sign indicating number ring 11, and the jackscrew 16 in its jackscrew 16 holes just in time screws in the groove of transferring sign indicating number ring 11 cylindricals, makes cipher ring 12 together with transferring sign indicating number ring 11 to rotate simultaneously.Transfer on groove and the cipher ring 12 on the sign indicating number ring 11 password sign 15 equidistantly and corresponding one by one, both combinations, by the password sign 15 corresponding grooves of transferring on sign indicating number ring 11 cylindricals, linking by the groove on accent sign indicating number ring 11 cylindricals, it overlaps interior groove again, finally, screw in this form of groove of transferring on the sign indicating number ring 11 with the jackscrew on the cipher ring 12 16 and be fixed up, realize selecting the function of password sign 15.

Cipher ring 12, accent sign indicating number ring 11, catch 13, mandrel 10 all are placed in the big cover 6 of tapered end.The big cover 6 of tapered end, two different holes are arranged, one stomidium is little, cooperate with mandrel 10, one stomidium is big, in cipher ring 12, accent sign indicating number ring 11, catch 13 can being positioned over, baffle plate 14 is fixed on the openend of big cover, cipher ring 12, accent sign indicating number ring 11, catch 13 just all are closed in the big cover 6 of tapered end, have only mandrel 10 along stretching out in the mating holes of baffle plate 14.The cylindrical of cover has radially cut a part symmetrically greatly, forms two windows, makes the cipher ring 12 in the cover expose a part, is convenient to dial commentaries on classics cipher ring 12.Cipher ring 12, accent sign indicating number ring 11, catch 13 are at the axial direction of the big cover 6 of tapered end along tapered end, and be all movable, keeps certain clearance each other.When needing, the gap appears between the cipher ring 12, each independently cipher ring 12 could freely rotate, when not required, cipher ring 12 is close together each other through the promotion of catch 13 and big spring thereafter 9, because of the both ends of the surface of each cipher ring 12 all have radial type trench, be close to back groove phase embedding, cipher ring 12 just can not rotate alone.The big spring 9 that is arranged on catch 13 back is enclosed within on the mandrel 10, the one end withstands on the catch 13 in the activity, the other end withstands on the fixed dam 14, and whether the appearance that the space length of big spring 9 work is determining gap between the cipher ring 12 promotes catch 13 towards baffle plate 14 directions, the gap occurs, unclamp catch 13, under the effect of big spring 9, catch 13 promotes cipher ring 12, each cipher ring 12 is close to, and the gap disappears.Catch 13 is rounded, but not full circle, on the position on its end face top, have the breach of two symmetries vertically, respectively be provided with two radial holes on the breach platform radially, respectively be equipped with two little springs 8 in the hole, along breach, respectively be inserted with a U type compressing tablet 7, U type compressing tablet 7 covers little spring 8, can on the end face of breach, slide, little spring 8 jack-up U type compressing tablets 7 make it to be in desired location when static, and U type compressing tablet 7 is by an end of cipher ring 12, concordant with the end face of catch 13, be adjacent to the password headring with catch 13, under the effect of spring, each cipher ring 12 closely interlocked, end by big spring 9 and baffle plate 14, one convex edge is arranged, and the compression stroke of big spring 9 between catch 13 and the baffle plate 14 is crossed in the convex edge, abuts against the institute that has sealed in the big cover 6 of tapered end on the end face of baffle plate 14 and has living space, make all parts in the big cover 6 of tapered end stiff, can't be with realization to the purpose of examination password.Have a ring shaped slot on the inner face that baffle plate 14 overlaps in tapered end, only depress U type compressing tablet 7, the convex edge on it is fallen in the ring shaped slot, catch 13 could be done in the working space of big spring 9 and seesaw.Therefore, depress U type compressing tablet 7, the gap could occur between each cipher ring 12, the gap has been arranged, broken away from the other side's groove, can an independently rotation certainly.U type compressing tablet 7 is by the bottom of big spring 9 one ends, when not depressing, always with the big cover 6 of tapered end in mandrel 10 cylindricals paste mutually, do not seesaw along mandrel 10 but do not influence it.When depressing, then just in time fall in mandrel 10 annular grooves of radially being opened on the mandrel 10.It is step-like that mandrel 10 is screw thread, big end is overlapping transfers sign indicating number ring 11 and cipher ring 12, small end is overlapping washer, and the big cover 6 of tapered end can slide on mandrel 10, catch 13 is because be to be enclosed within on the small end of mandrel 10, after having accepted the elastic force of big spring 9, can only be with big cover 6 integral body of tapered end towards unresisted direction, be that mandrel 10 small end directions are passed, if depress U type compressing tablet 7, and make it to be stuck in the groove of mandrel 10 small ends, catch 13 and mandrel 10 just combine as a whole, and simultaneously, has also just fallen in the annular groove of baffle plate 14 end faces the convex edge on the catch 13U type compressing tablet 7, the big cover 6 of the tapered end that makes has obtained and the equidistant activity space of baffle plate 14 end face ring groove depth, at this moment, big cover 6 integral body of tapered end are advanced towards mandrel 10 big extreme directions, force the convex edge on the U type compressing tablet 7 to be deep in the baffle plate groove, its space just has been distributed to subsides place mutually of each cipher ring 12, and each cipher ring 12 just all can freely rotate.To the examination password, it generally all is tension mandrel 10, the protruding pin of arranging on it 23 is adjacent to transfers sign indicating number to encircle 11 interior cover end face, when stirring cipher ring 12, seek and transfer the groove of cover end face in the sign indicating number ring 11 to contact with protruding pin 23, moment is because of sensation and sense of touch that minim gap produces, after the U type compressing tablet 7 on the catch 13 has been embedded into the annular groove of mandrel 10, mandrel 10 becomes one with catch 13, to push away before the big cover 6 of tapered end, catch 13 just has been attached on baffle plate 14 end faces again, transfers sign indicating number ring 11 interior cover end faces no longer can contact with protruding pin 23, so, when not knowing proper password,, the possibility of trying has not just been existed yet with the sense of hearing and sense of touch.At this moment, to good correct password, make on the grooves of mandrel 10 protruding pins, 23 equal correspondences in accent sign indicating number ring 11 overlaps, the big cover 6 of tapered end just can move along mandrel 10, and the mobile distance that is produced is just opened the requisite space distance with the locking lockset.Unclamp U type compressing tablet 7, make it to break away from mandrel 10 annular grooves, catch 13 promotes each cipher ring 12 under the effect of big spring 9, they are closely pasted each other mutually, simultaneously, U type compressing tablet 7 convex edges on it just in time also break away from the baffle plate annular groove, on move and abut against on baffle plate 14 inner faces, it is gapped to eliminate institute, make each part in the big cover 6 of tapered end become an integral body of closely pasting mutually, playing can't be by the effect of rotational password ring to the examination password.

For the ease of operation, depressing U type compressing tablet 7, guarantee to keep a relatively-stationary state after convex edge on it enters baffle plate 14 annular grooves, on the big cover 6 of tapered end, have locating slot 17, depress U type compressing tablet 7, allow the compression leg 18 on it do upwards rotation of footpath along the oblique line track of locating slot, U type compressing tablet 7 convex edges on the catch 13 just enter baffle plate 14 annular grooves, catch 13 is taken with U type compressing tablet 7 and by the compression leg 18 on the U type compressing tablet 7, be limited in the locating

slot

17,18 despinings of U type compressing tablet 7 compression legs then set back again.

The utility model reasonable in design, use efficient and convenient, it screws out the unlatching and the locking of control door lock for the screw-in of mandrel card post and doorframe draw-in groove by the big cover of cipher control mechanism tapered end, the rotational password ring is according to the sense of hearing and sense of touch examination password, radial type trench on each cipher ring end face just embeds mutually and is close to, and cipher ring can not be rotated, thereby has got rid of the possibility to the examination password, the security performance height is suitable for promoting the use of on a large scale.

Claims

1, a kind of mechanical code safe-guard door lock, comprise the screw thread step mandrel [10] that penetrates door [1], and the screw thread baffle plate [19] and the via hole baffle plate [2] that are arranged on door [1] both sides fixed central spindle [10], it is characterized in that, it is step-like that described mandrel [10] is screw thread, cylindrical radially has a plurality of protruding pins [23], circumferential hoop has and can slide thereon, inside is provided with cipher ring [12], transfer sign indicating number ring [11], catch [13], the big cover of cipher control mechanism tapered end [6] of baffle plate [14], described cipher ring [12] is enclosed within to be transferred on the sign indicating number ring [11], radially be provided with a plurality of password signs [15] on cipher ring [12] outer round surface, also be provided with on it one can radially screw in jackscrew [16] the silk hole; Described accent sign indicating number ring [11] becomes shell-like, cylindrical radially is provided with a plurality of axial pass troughs, password sign [15] on axial pass trough and cipher ring [12] outer round surface equidistantly and corresponding one by one, transfer sign indicating number ring [11] endoporus to cooperate with mandrel [10] is movable, and be enclosed within on the mandrel [10], its interior hole end surface has one can be around the groove of mandrel [10] rotation; Described baffle plate [14] is fixed on the big cover of tapered end [6] openend, big spring fixed thereon [9] other end withstands on the catch [13] that is arranged in the big cover of tapered end [6], catch [13] is rounded, on its end face, have the breach of two symmetries vertically, breach platform radially is provided with two radial holes, each is provided with a little spring [8] at least in the hole, along breach, respectively is inserted with a U type compressing tablet [7].

2, mechanical code safe-guard door lock according to claim 1 is characterized in that, described cipher ring [12] has two groups at least, and its end face is provided with consistent size, regularly arranged radial type trench.

3, mechanical code safe-guard door lock according to claim 1 is characterized in that, described mandrel [10] end of thread is provided with the card post [20] of going up draw-in groove [21] coupling with doorframe [22].

4, mechanical code safe-guard door lock according to claim 1 is characterized in that, the big cover of described tapered end [6] is provided with the spline [4] that spline hole slot [3] coupling offered on the via hole baffle plate [2] with fixed central spindle [10] is connected.