CN105625825A - Mechanical type anti-theft lock - Google Patents

Abstract

The invention discloses a mechanical type anti-theft lock, and belongs to the technical field of locks. The mechanical type anti-theft lock comprises a lock shell, a lock cylinder assembly, an unlocking driving lever assembly, a primary tongue assembly and a secondary tongue assembly, wherein the lock cylinder assembly is positioned in the lock shell; the unlocking driving lever assembly is connected to the lock cylinder assembly; the unlocking driving lever assembly comprises a driving lever shaft, a driving lever shaft sleeve and a driving lever handle; the primary tongue assembly comprises a primary lock tongue, a primary lock tongue post, a primary lock tongue driving lever and a positioning supporting base; the secondary tongue assembly comprises an upper lock tongue assembly, a lower lock tongue assembly, a linkage cross bar, a secondary lock tongue post and a second lock tongue driving lever; by pulling the unlocking driving lever assembly, the primary lock tongue driving lever drives the primary lock tongue post and drives the primary lock tongue to shrink into the lock shell; and meanwhile, the secondary lock tongue driving lever drives the secondary lock tongue post and drives the upper lock tongue assembly and the lower lock tongue assembly to shrink into the lock shell. The mechanical type anti-theft lock adopts mechanical linkage, is simple in linkage mechanism, is convenient and flexible to operate, and is convenient to process and assemble, and has multiple anti-pry anti-theft functions.

Description

A kind of mechanical antitheft lock

Technical field

The present invention relates to lock technology field, in particular to a kind of mechanical linkage theftproof lock.

Background technology

Lock has very close relationship in human lives, its instrument indispensable in usually living as people, the safety being related to each family, unit and public place, along with the progress in epoch, the various performances of lock be there has also been higher requirement by the mankind. At present, anti-theft lockset structure on the market and a great variety of models, generally can be divided into mechanical antitheft lock and the big class of polarity formula theftproof lock two, and polarity formula theftproof lock is very easily replicated, and security is not high. Polarity formula theftproof lock, when unblanking, is driven by outer handle, utilizes the gear in unlocking apparatus and the transmission between gear to drive inner paddle, thus drives master lock tongue to move, it is achieved unblanks and upper latching operation; But, such structure needs to overcome gear forces effect, therefore when unlock operation, it is necessary to bigger strength, causes operation inconvenience; And gear type is unblanked, also it is unfavorable for Rapid reset, causes inconvenience to user.

Mechanical antitheft lock, it relies on the interaction between machinery to realize the opening and closing of theftproof lock, reliability height. The basic structure of existing mechanical anti-theft lock is all similar substantially, dead bolt develops into three-dimensional five tongue formula mechanical anti-theft lock by single direction, dead bolt is directly promoted to lock core, the theftproof lock of this kind of structure structurally designs reasonable not, complex structure, theftproof performance are not good and process more difficult, shared space is also bigger, also exist simultaneously failure rate height, cost height, operation in-convenience in use etc. shortcoming, this kind of theftproof lock is in use, each switch lock all to be used key and turn key, not very convenient; Torsion when simultaneously turning key is apart from relatively big, and the abrasion of key and lock core is more serious; In addition, the inclined-plane of mechanical type anti-theft inclined tongue of lock is towards outdoors, and the thin slice being easy to be had a certain degree of hardness is to opening, thus causes door when not needing to be opened when key, and this provides for burglar enters the room conveniently.

In sum, the mechanical antitheft lock of prior art, except the possibility that there is technical unlocking, also owing to structure existing many defects, and bring anti-sled, crashworthiness, anti-spreading performance not good, or saying, no matter the safe antitheft performance of tradition mechanical antitheft lock is that precautionary technology is opened or strick precaution inartful i.e. destructive unlatching aspect can not satisfy the demands.

Summary of the invention

It is an object of the invention to provide a kind of simple and reasonable, cost of manufacture is low, theftproof performance good, mechanical antitheft lock flexible to operation, this theftproof lock adopts mechanical linkage, its linkage mechanism is simple, process and assemble convenient, and there is multiple pick-proof and anti-theft function, effectively solve above-mentioned background technology Problems existing.

The technical scheme that the present invention adopts for achieving the above object is: a kind of mechanical antitheft lock, comprise lock housing body, unblank driving lever assembly, labella assembly, main tongue assembly and lock core assembly, described lock core assembly is positioned in lock housing body, unblank driving lever assembly be arranged on lock core assembly upside and with lock core assembly be connected, described driving lever assembly of unblanking comprises shift lever axis, driving lever axle sleeve and driving lever handle, driving lever axle sleeve is positioned in lock housing body, shift lever axis is through described driving lever axle sleeve and extends to lock enclosure interior, driving lever handle is connected to shift lever axis and is positioned at the external one end of lock housing, one end that described shift lever axis is positioned at lock housing body is also provided with retaining clip, described retaining clip is connected by the driver plate of connecting rod with lock core assembly, stirring described driving lever handle can drive driver plate to rotate, described main tongue assembly comprises master lock tongue, master lock tongue post, master lock tongue driving lever and the positioning support for locating master lock tongue, described positioning support is arranged in lock housing body, master lock tongue can be extended out lock hull outside through the front end of positioning support and master lock tongue, described master lock tongue post is vertically connected on master lock tongue afterbody, and it is connected with returning pull-spring I between master lock tongue post and positioning support, master lock tongue driving lever is connected with the driver plate of lock core assembly and extends to master lock tongue post right side edge, it is connected with returning pull-spring II between described master lock tongue driving lever and positioning support, the driver plate that turns clockwise can drive master lock tongue post by master lock tongue driving lever and drive master lock tongue to enter released state to lock housing body contract, described labella assembly comprises upper lock tongue assembly, lower dead bolt assembly, linkage cross bar, secondary lock tongue post and secondary lock tongue driving lever, described upper lock tongue assembly is positioned in lock housing body by upper positioning support and the front end of upper lock tongue assembly can be extended out the outside of lock housing body upper end, described lower dead bolt assembly is positioned in lock housing body by lower positioning support and the front end of lower dead bolt assembly can be extended out the outside of the lower end of lock housing body, described linkage cross bar is sleeved on outside driving lever axle sleeve and can rotate around driving lever axle sleeve, and link and it is connected with returning pull-spring III between cross bar and lock core assembly, described upper lock tongue assembly, lower dead bolt assembly is hinged with the two ends of linkage cross bar respectively, described secondary lock tongue post is connected with lower dead bolt assembly, secondary lock tongue driving lever is connected with the driver plate of lock core assembly and extends to secondary lock tongue post lower edge, it is connected with returning pull-spring IV between described secondary lock tongue driving lever and lock core assembly, the driver plate that turns clockwise can drive secondary lock tongue post by secondary lock tongue driving lever and drive upper lock tongue assembly and lower dead bolt assembly to enter released state to lock housing body contract.

The further technical scheme of the present invention is: described upper lock tongue assembly comprises upper lock tongue, upper pull bar main body, upper drag link and upper gangbar, described upper lock tongue is connected to the front end of pull bar main body, upper drag link is vertically connected on the afterbody of pull bar main body, described upper pull bar main body can be extended out the outside of lock housing body upper end through the upper lock tongue of upper positioning support and upper pull bar body front end, upper pull bar main body is connected with the latus superius of lock housing body by returning pull-spring V, described upper gangbar one end and upper drag link are hinged, and the other end is hinged with the right-hand member of linkage cross bar; Described lower dead bolt assembly comprises lower dead bolt, lower link main body, lower drag link and lower gangbar, described lower dead bolt is connected to the front end of lower link main body, lower drag link is vertically connected on the afterbody of lower link main body, described lower link main body can be extended out the outside of the lower end of lock housing body through the lower dead bolt of lower positioning support and lower link body front end, lower link main body is connected with the lower side plate of lock housing body by returning pull-spring VI, described lower gangbar one end and lower drag link are hinged, and the other end is hinged with the left end of linkage cross bar; Described secondary lock tongue post is connected with lower gangbar.

The further technical scheme of the present invention is: be also respectively arranged with labella locking gear on described upper positioning support and lower positioning support, upper pull bar body upper surface through upper positioning support has offered upper lock hole I and upper lock hole II, and the lower link body upper surface through lower positioning support has offered lower lock hole I and lower lock hole II, described labella locking gear comprises labella locking latch handle, labella locking latch handle locating sleeve and labella locking latch handle guidepost, labella locking latch handle locating sleeve is separately fixed at positioning support and lower positioning support upper surface, labella locking latch handle positioning sleeving shaft is upwards provided with the labella locking latch handle collecting hole for locating labella locking latch handle, labella locking latch handle locating sleeve outer surface is also provided with the guiding elongated slot locking latch handle collecting hole with labella and connecting, described labella locking latch handle be positioned at labella locking latch handle collecting hole in and labella locking latch handle can labella lock latch handle collecting hole in move up and down, labella locking latch handle guidepost is through guiding elongated slot and locks latch handle with labella and is connected, labella locking latch handle moves up and down labella locking latch handle guidepost in process and can slide up and down in guiding elongated slot, described labella locking latch handle front end is also connected with labella locking latch, during locking state, labella locking latch on upper positioning support through upper positioning support and extends in lock hole I or upper lock hole II, and the labella locking latch on lower positioning support through lower positioning support and extends in lower lock hole I or lower lock hole II. the described labella locking latch handle radial direction being positioned at labella locking latch handle collecting hole has offered latch handle self-locking hole, labella locking latch handle locating sleeve offers the latch handle self-locking hole I corresponding with latch handle self-locking hole and latch handle self-locking hole II, latch handle self-locking steel ball and latch handle self-locking spring it is provided with in described latch handle self-locking hole, when labella locking latch handle guidepost slides into guiding elongated slot upper end, latch handle self-locking steel ball is pressed on latch handle self-locking hole I by latch handle self-locking spring, when labella lock latch handle guidepost slide into guiding elongated slot lower end time, latch handle self-locking steel ball is pressed on latch handle self-locking hole II by latch handle self-locking spring.

The further technical scheme of the present invention is: this mechanical antitheft lock also comprises the quickly unlocking driving lever assembly being arranged on the downside of lock core assembly, described quickly unlocking driving lever assembly comprises interior driving lever handle, dead bolt driving lever, driving lever Connection Block, quickly unlocking driving lever axle sleeve, outer driving lever handle, quickly unlocking driving lever gag lever post and quickly unlocking shift lever axis, described quickly unlocking driving lever axle sleeve is positioned in lock housing body, quickly unlocking shift lever axis extends lock hull outside respectively through quickly unlocking driving lever axle sleeve and quickly unlocking shift lever axis two ends, described interior driving lever handle and outer driving lever handle are vertically connected on the two ends of quickly unlocking shift lever axis respectively, described driving lever Connection Block is enclosed within outside quickly unlocking shift lever axis and is fixedly connected with quickly unlocking shift lever axis, described dead bolt driving lever is connected with driving lever Connection Block and extends to master lock tongue post right side edge, and between dead bolt driving lever and positioning support, it is connected with returning pull-spring VII, being rotated counterclockwise quickly unlocking shift lever axis can drive master lock tongue post by dead bolt driving lever and drive master lock tongue to enter released state to lock housing body contract, described quickly unlocking driving lever gag lever post is connected with driving lever Connection Block, is also provided with the driving lever limited block for limiting quickly unlocking driving lever gag lever post angle of rotation on the left of quickly unlocking driving lever gag lever post, and described driving lever limited block is fixedly connected with quickly unlocking driving lever axle sleeve.

The further technical scheme of the present invention is: the right side of described quickly unlocking driving lever gag lever post is also provided with driving lever stop means, driving lever stop means comprises the spacing handle of driving lever, spacing post, driving lever spacing handle guidepost and spacing handle locating sleeve, described spacing handle locating sleeve is arranged in lock housing body and is positioned on the right side of quickly unlocking driving lever gag lever post, described spacing handle positioning sleeving shaft is upwards provided with the spacing handle collecting of the driving lever for locating the spacing handle of driving lever hole, the spacing handle of driving lever extends in driving lever spacing handle collecting hole and can rotate in driving lever spacing handle collecting hole, the spacing handle of driving lever above spacing handle locating sleeve is connected described spacing post with protruding, described spacing handle locating sleeve outer surface is also provided with the guide and limit groove that spacing handle collecting hole connects with driving lever, the central angle of guide and limit groove is 90 ��, described driving lever spacing handle guidepost is through guide and limit groove and is connected with the spacing handle of driving lever being positioned in driving lever spacing handle collecting hole, and in driving lever spacing handle rotary course, the spacing handle guidepost of driving lever can slide left and right in guide and limit groove. the described spacing handle radial direction of driving lever being positioned in driving lever spacing handle collecting hole offers limited location handle self-locking hole, spacing handle locating sleeve is offered the spacing handle self-locking hole I corresponding with spacing handle self-locking hole and spacing handle self-locking hole II, spacing handle self-locking steel ball and spacing handle self-locking spring it is provided with in described spacing handle self-locking hole, when the spacing handle guidepost of driving lever slides into guide and limit groove right-hand member, spacing handle self-locking steel ball is pressed on spacing handle self-locking hole I by spacing handle self-locking spring, when the spacing handle guidepost of driving lever slides into guide and limit groove left end, spacing handle self-locking steel ball is pressed on spacing handle self-locking hole II by spacing handle self-locking spring.

The further technical scheme of the present invention is: be also provided with main tongue locking gear on described positioning support, described master lock tongue upper surface is also offered and the elongated slot that main tongue locking gear coordinates, described main tongue locking gear comprises main tongue locking latch, main tongue latch locating sleeve, slanted kicking block and oblique top post, described main tongue latch locating sleeve is arranged on positioning support upper surface, main tongue latch positioning sleeving shaft is upwards provided with mutually through main tongue latch collecting hole I and main tongue latch collecting hole II, main tongue latch collecting hole I is extended to form downwards by main tongue latch locating sleeve upper surface, main tongue latch collecting hole II is upwards extended to form by main tongue latch locating sleeve lower surface, the diameter in main tongue latch collecting hole I is little compared with the diameter that hole II accommodated by main tongue latch, described locating sleeve outer surface is also provided with the guide path accommodated hole II and connect with main tongue latch, described main tongue locking latch comprises latch handle, latch main body and latch, described latch agent localization is accommodated in hole II at main tongue latch, latch handle is connected to latch main body upper end and extends in main tongue latch collecting hole I, spring also it is arranged with outside described latch handle, spring is positioned in main tongue latch collecting hole II and the upper end of spring is pressed on main tongue latch collecting upper end, hole II, and the lower end of spring is pressed on latch main body by the step surface at middle part, described latch is connected to the lower end of latch main body and latch is worn positioning support and extended in the elongated slot of master lock tongue upper surface, described slanted kicking block is connected through guide path with latch main body, is provided with the inclined-plane that ecto-entad tilts on the right side of slanted kicking block downwards, and described oblique top post is connected with the driver plate of lock core assembly, when rotating clockwise driver plate oblique top post be against below the inclined-plane of slanted kicking block and by slanted kicking block upwards jack-up thus drive main tongue locking latch to move up, when latch leaves the elongated slot of master lock tongue, master lock tongue can completely be contracted in lock housing body and enter released state. described latch handle comprises handle main body and handle connecting portion, handle connecting portion upper surface concave downward is provided with the handle pilot hole for position fixing handle main body, the location groove of 360 �� is offered in the outside of the lower end of described handle main body, the location pin-and-hole corresponding with location groove is offered outside handle connecting portion, the lower end of described handle main body and is extended in the groove of location through location pin-and-hole by steady brace after extending to handle pilot hole, thus handle main body is positioned in handle pilot hole, described main tongue latch locating sleeve upper surface concave downward is provided with groove, is also provided with the limited block corresponding with groove outside handle main body, and the width of described limited block is consistent with the width of groove, and the length of limited block is greater than the width of limited impression.

The further technical scheme of the present invention is: described lock hull outside is also provided with the boosting-rod for being compressed in the key hole of lock core assembly completely by key, and described boosting-rod is hinged on lock hull outside by location seat.

A kind of mechanical antitheft lock of the present invention, owing to adopting said structure, has following useful effect:

1, a kind of mechanical antitheft lock of the present invention adopts mechanical linkage, its linkage mechanism is simple, process and assemble convenient, cost of manufacture is low, flexible to operation, the upper and lower of antitheft door and side three-dimensional are jointly locked by the present invention by main tongue assembly and labella assembly, having multiple pick-proof and anti-theft function, theftproof performance is good; And the present invention is different from the mode of unblanking of existing theftproof lock, the present invention does not need to turn key, as long as core being locked in key insertion and pulling driving lever handle and can realize lock, not only simple to operate, time saving and energy saving, also reduce the action turning key and prevent key from accelerating abrasion; Simultaneously owing to the mechanical type anti-theft lock assembly of the present invention is relatively few, transmission parts structural strength height, therefore there is very high anti-sled, anti-theft, add the difficulty that lawless person opens antitheft door by violent means; The master lock tongue of the present invention and secondary lock tongue linkage mechanism relatively independent, it may also be useful to time handiness good, can not have flase operation, reliability height.

2, the present invention is provided with main tongue locking gear on the positioning support of master lock tongue, when antitheft door is in the lock state, the main tongue locking latch of main tongue locking gear is under the action of the spring, latch is arranged in the elongated slot of master lock tongue upper surface all the time, if lawless person attempts to use the thin slice with certain degree of hardness from outdoors to opening master lock tongue, now master lock tongue is after lock housing body contract certain length, the latch being arranged in elongated slot can stop master lock tongue to continue to lock housing body contract, therefore master lock tongue can not be contracted in lock housing body completely, antitheft door also just can not realize opening, avoid lawless person when not needing to be opened on doorway when key, effectively raise the theftproof performance of the present invention.

3, the present invention is provided with labella locking gear on the upper positioning support and lower positioning support of labella assembly, and has offered lock hole I and lock hole II respectively accordingly in upper pull bar main body and lower link main body; When upper lock tongue and lower dead bolt extend lock hull outside (namely antitheft door is in locking state), if the labella of labella locking gear locking latch handle is pressed downwards, labella locking latch is made to be arranged in lock hole I, no matter now whether having key, all not making upper lock tongue and lower dead bolt to lock housing body contract by pulling driving lever handle, that is now antitheft door is in the state of locking; When upper lock tongue and lower dead bolt are contracted in lock housing body completely, if the labella of labella locking gear locking latch handle is pressed downwards, labella locking latch is made to be arranged in lock hole II, upper lock tongue and lower dead bolt remain retracted in lock housing body always, namely now only main tongue assembly participates in the locking of antitheft door and labella assembly does not participate in the locking of antitheft door, this function can be used during user room away from keyboard, add the use handiness of the present invention.

4, the present invention is also provided with quickly unlocking driving lever assembly, by pulling the interior driving lever handle of quickly unlocking driving lever assembly or outer driving lever handle, makes dead bolt driving lever drive master lock tongue post and drive master lock tongue to lock housing body contract; When user needs room away from keyboard and returns very soon, it is possible to use quickly unlocking driving lever assembly does not need key to open the function of antitheft door with regard to energy fast and easy after coordinating labella locking gear to realize of short duration leaving.

5, the present invention is also provided with driving lever stop means on the right side of quickly unlocking driving lever assembly, it is possible to by driving lever stop means, quickly unlocking driving lever assembly can not be worked.

6, a kind of mechanical type anti-theft of the present invention is locked in the external side of lock housing and is also provided with boosting-rod, can easily be compressed to completely in key hole by key by boosting-rod, and the user facilitating the strength such as old man and child less uses.

Below in conjunction with drawings and Examples, a kind of mechanical antitheft lock of the present invention is further described.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of mechanical antitheft lock of the present invention;

Fig. 2 is the other direction view of Fig. 1;

Fig. 3 is the internal structure schematic diagram (locking state) of a kind of mechanical antitheft lock of the present invention;

Fig. 4 is the perspective view of Fig. 3;

Fig. 5 is the structural representation of released state shown in Fig. 3;

Fig. 6 is the structural representation (locking state) that the present invention only illustrates lock core assembly, unblank driving lever assembly and main tongue assembly in lock housing body;

Fig. 7 is the perspective view of Fig. 6;

Fig. 8 is the structural representation of released state shown in Fig. 6;

Fig. 9 is the structural representation (locking state) that the present invention only illustrates lock core assembly, unblank driving lever assembly and labella assembly in lock housing body;

Figure 10 is the perspective view of Fig. 9;

Figure 11 is the structural representation of released state shown in Fig. 9;

Figure 12 is the structural representation (locking state) that the present invention only illustrates lock core assembly, driving lever assembly of unblanking, main tongue assembly, quickly unlocking driving lever assembly and driving lever stop means in lock housing body;

Figure 13 is the perspective view of Figure 12;

Figure 14 is the structural representation of released state shown in Figure 12;

Figure 15 is the perspective view of quickly unlocking driving lever assembly of the present invention;

Figure 16 is the perspective view of driving lever stop means of the present invention;

Figure 17 is the part sectioned view of Figure 16;

Figure 18 is the perspective view of labella locking gear of the present invention;

Figure 19 is that the N of Figure 18 is to part sectioned view;

Figure 20 is that the M of Figure 18 is to part sectioned view;

Figure 21 is the present invention's main tongue assembly and the perspective view of main tongue locking gear;

Figure 22 is that the H of Figure 21 is to part sectioned view;

Figure 23 is that the K of Figure 21 is to part sectioned view (the incomplete released state of master lock tongue);

Figure 24 is that the K of Figure 21 is to part sectioned view (the complete released state of master lock tongue);

Figure 25 is the structural representation of main tongue latch locating sleeve shown in Figure 21;

Figure 26 is the sectional view of Figure 25;

Figure 27 is the structural representation of the locking latch of main tongue shown in Figure 21;

Figure 28 is the decomposing schematic representation of Figure 27;

Drawing reference numeral illustrates: 1-lock housing body, 2-unblanks driving lever assembly, 21-shift lever axis, 22-connecting rod, 23-driving lever handle, 24-retaining clip, 25-driving lever axle sleeve, 3-labella assembly, 311-upper lock tongue, 312-returning pull-spring V, the upper pull bar main body of 313-, the upper lock hole I of 3131-, the upper lock hole II of 3132-, the upper positioning support of 314-, the upper drag link of 315-, the upper gangbar of 316-, 32-links cross bar, 321-returning pull-spring III, 33-secondary lock tongue post, 34-secondary lock tongue driving lever, 341-returning pull-spring IV, gangbar under 351-, drag link under 352-, positioning support under 353-, 354-lower link main body, lock hole I under 3541-, lock hole II under 3542-, dead bolt under 355-, 356-returning pull-spring VI, 4-quickly unlocking driving lever assembly, driving lever handle in 41-, 42-dead bolt driving lever, 43-driving lever Connection Block, 44-quickly unlocking driving lever axle sleeve, the outer driving lever handle of 45-, 46-driving lever limited block, 47-quickly unlocking driving lever gag lever post, 48-quickly unlocking shift lever axis, 49-returning pull-spring VII, 5-labella locking gear, 51-labella locking latch handle, 511-latch handle self-locking hole, 512-labella locking latch, 52-labella locking latch handle locating sleeve, 521-latch handle self-locking hole I, 522-latch handle self-locking hole II, 523-labella locking latch handle collecting hole, 524-leads elongated slot, 53-labella locking latch handle guidepost, 54-latch handle self-locking steel ball, 55-latch handle self-locking spring, 6-driving lever stop means, the spacing handle of 61-driving lever, the spacing handle self-locking hole of 611-, the spacing post of 62-, the spacing handle guidepost of 63-driving lever, the spacing handle locating sleeve of 64-, the spacing handle self-locking hole I of 641-, the spacing handle self-locking hole II of 642-, 643-guide and limit groove, 644-driving lever spacing handle collecting hole, the spacing handle self-locking steel ball of 65-, the spacing handle self-locking spring of 66-, the main tongue assembly of 7-, 71-master lock tongue post, 72-master lock tongue driving lever, 73-returning pull-spring I, 74-positioning support, 75-master lock tongue, 751-elongated slot, 76-returning pull-spring II, the main tongue locking gear of 8-, the main tongue locking latch of 81-, 811-latch handle, 8111-handle main body, 81111-limited block, 81112-locates groove, 8112-handle connecting portion, 81121-handle pilot hole, 81122-locates pin-and-hole, 8113-steady brace, 812-latch main body, 813-latch, the main tongue latch locating sleeve of 82-, 821-groove, 822-main tongue latch collecting hole I, 823-main tongue latch collecting hole II, 824-guide path, 83-slanted kicking block, 831-inclined-plane, 84-oblique top post, 85-spring, 9-locks core assembly, 91-driver plate, 10-boosting-rod, 101-locates seat, 102-key.

Embodiment

As shown in Figures 1 to 5, a kind of mechanical antitheft lock of the present invention, comprise lock housing body 1, driving lever assembly 2 of unblanking, labella assembly 3, main tongue assembly 7 and lock core assembly 9, described lock core assembly 9 is positioned in lock housing body 1, and driving lever assembly 2 of unblanking is arranged on the upside of lock core assembly 9 and is connected with lock core assembly 9.

As shown in Figure 6 to 8, described driving lever assembly 2 of unblanking comprises shift lever axis 21, driving lever handle 23 and driving lever axle sleeve 25, driving lever axle sleeve 25 is positioned in lock housing body 1, shift lever axis 21 is through described driving lever axle sleeve 25 and extends to lock housing body 1 inside, driving lever handle 23 is connected to one end that shift lever axis 21 is positioned at outside lock housing body 1, one end that described shift lever axis 21 is positioned at lock housing body 1 is also provided with retaining clip 24, described retaining clip 24 is connected by the driver plate 91 of connecting rod 22 with lock core assembly 9, by in the key insertion key hole supporting with lock core assembly 9, after lock core assembly 9 is in released state, the driver plate 91 of lock core assembly 9 can freely rotate, now driver plate 91 can be driven to rotate by connecting rod 22 by pulling driving lever handle 23.

Described main tongue assembly 7 comprises master lock tongue post 71, master lock tongue driving lever 72, master lock tongue 75 and the positioning support 74 for locating master lock tongue 75, described positioning support 74 is arranged in lock housing body 1, master lock tongue 75 can be extended out outside lock housing body 1 through the front end of positioning support 74 and master lock tongue 75, described master lock tongue post 71 is vertically connected on master lock tongue 75 afterbody, and it is connected with returning pull-spring I 73 between master lock tongue post 71 and positioning support 74, master lock tongue driving lever 72 is connected with the driver plate 91 of lock core assembly 9 and extends to master lock tongue post 71 right side edge, it is connected with returning pull-spring II 76 between described master lock tongue driving lever 72 and positioning support 74. driving driver plate 91 to turn clockwise by connecting rod 22 when pulling driving lever handle 23, the master lock tongue driving lever 72 being now connected with driver plate 91 compresses master lock tongue post 71 and drives master lock tongue 75 to lock housing body 1 contract, and now theftproof lock enters released state.

As shown in Figures 9 to 11, described labella assembly 3 comprises upper lock tongue assembly, lower dead bolt assembly, linkage cross bar 32, secondary lock tongue post 33 and secondary lock tongue driving lever 34, described upper lock tongue assembly is positioned at, by upper positioning support 314, the outside that lock housing body 1 front end that is interior and upper lock tongue assembly can be extended out lock housing body 1 upper end, described lower dead bolt assembly is positioned at, by lower positioning support 353, the outside that lock housing body 1 front end that is interior and lower dead bolt assembly can be extended out lock housing body 1 time end, described linkage cross bar 32 is sleeved on outside driving lever axle sleeve 25 and can rotate around driving lever axle sleeve 25, and link and it is connected with returning pull-spring III 321 between cross bar 32 and lock core assembly 9, described upper lock tongue assembly, lower dead bolt assembly is hinged with the two ends of linkage cross bar 32 respectively, described secondary lock tongue post 33 is connected with lower dead bolt assembly, secondary lock tongue driving lever 34 is connected with the driver plate 91 of lock core assembly 9 and extends to secondary lock tongue post 33 lower edge, it is connected with returning pull-spring IV 341 between described secondary lock tongue driving lever 34 and lock core assembly 9, the driver plate 91 that turns clockwise can drive secondary lock tongue post 33 by secondary lock tongue driving lever 34 and drive upper lock tongue assembly and lower dead bolt assembly to enter released state to lock housing body 1 contract.

In the present embodiment, described upper lock tongue assembly comprises upper lock tongue 311, upper pull bar main body 313, upper drag link 315 and upper gangbar 316, described upper lock tongue 311 is connected to the front end of pull bar main body 313, upper drag link 315 is vertically connected on the afterbody of pull bar main body 313, described upper pull bar main body 313 can be extended out the outside of lock housing body 1 upper end through the upper lock tongue 311 of upper positioning support 314 and upper pull bar main body 313 front end, upper pull bar main body 313 is connected with the latus superius of lock housing body 1 by returning pull-spring V 312, described upper gangbar 316 one end and upper drag link 315 are hinged, the other end is hinged with the right-hand member of linkage cross bar 32, described lower dead bolt assembly comprises lower dead bolt 355, lower link main body 354, lower drag link 352 and lower gangbar 351, described lower dead bolt 355 is connected to the front end of lower link main body 354, lower drag link 352 is vertically connected on the afterbody of lower link main body 351, described lower link main body 354 can be extended out the outside of lock housing body 1 time end through the lower dead bolt 355 of lower positioning support 353 and lower link main body 354 front end, lower link main body 354 is connected with the lower side plate of lock housing body 1 by returning pull-spring VI 356, described lower gangbar 351 one end and lower drag link 352 are hinged, the other end is hinged with the left end of linkage cross bar 32, described secondary lock tongue post 33 is connected with lower gangbar 351.

When user needs to unlock antitheft door, as long as by the key insertion key hole supporting with lock core assembly 9, after lock core assembly 9 is in released state, the driver plate 91 of lock core assembly 9 can freely rotate, now pulling driving lever handle 23 can drive driver plate 91 to rotate by connecting rod 22, the master lock tongue driving lever 72 being connected with driver plate 91 and secondary lock tongue driving lever 34 followed by driver plate 91 and rotate clockwise, master lock tongue driving lever 72 drives master lock tongue post 71 and drives master lock tongue 75 to lock housing body 1 contract, secondary lock tongue driving lever 34 also drives secondary lock tongue post 33 and drives upper lock tongue 311 and lower dead bolt 355 to lock housing body 1 contract simultaneously, when master lock tongue 75, when upper lock tongue 311 and lower dead bolt 355 are contracted in lock housing body 1 completely, antitheft door is in released state, realize the unlatching of antitheft door, after unclamping driving lever handle 23, master lock tongue 75 extends outside lock housing body 1 under the pulling force effect of returning pull-spring I 73, simultaneously upper lock tongue 311 and lower dead bolt 355 also extend lock housing body about 1 both sides respectively under the pulling force effect of returning pull-spring V 312 and returning pull-spring VI 356, and theftproof lock is reset to locking state.

As shown in Figure 18 to Figure 20, the upper positioning support 314 of the present invention and lower positioning support 353 are also respectively arranged with labella locking gear 5, upper pull bar main body 313 upper surface through upper positioning support 314 has offered upper lock hole I 3131 and upper lock hole II 3132, and lower link main body 354 upper surface through lower positioning support 353 has offered lower lock hole I 3541 and lower lock hole II 3542; described labella locking gear 5 comprises labella locking latch handle 51, labella locking latch handle locating sleeve 52 and labella locking latch handle guidepost 53, labella locking latch handle locating sleeve 52 is separately fixed at positioning support 314 and lower positioning support 353 upper surface, labella locking latch handle locating sleeve 52 is axially provided with the labella locking latch handle collecting hole 523 for locating labella locking latch handle 51, labella locking latch handle locating sleeve 52 outer surface is also provided with the guiding elongated slot 524 locking latch handle collecting hole 523 with labella and connecting, described labella locking latch handle 51 be positioned at labella locking latch handle collecting hole 523 in and labella locking latch handle 51 can labella lock latch handle collecting hole 523 in move up and down, labella locking latch handle guidepost 53 is through guiding elongated slot 524 and locks latch handle 51 with labella and is connected, labella locking latch handle 51 moves up and down labella locking latch handle guidepost 53 in process and can slide up and down in guiding elongated slot 524, described labella locking latch handle 51 front end is also connected with labella locking latch 512, during locking state, labella locking latch 512 on upper positioning support 314 through upper positioning support 314 and extends in lock hole I 3131 or upper lock hole II 3132, and the labella locking latch 512 on lower positioning support 353 through lower positioning support 353 and extends in lower lock hole I 3541 or lower lock hole II 3542. when upper lock tongue 311 and lower dead bolt 355 extend (namely antitheft door is in locking state) outside lock housing body 1, if the labella of labella locking gear 5 locking latch handle 51 is pressed downwards, labella locking latch 512 is made to be arranged in lock hole I 3131 and lower lock hole I 3541, no matter now whether having key, all not making upper lock tongue 311 and lower dead bolt 355 to lock housing body 1 contract by pulling driving lever handle 23, that is now antitheft door is in the state of locking, when upper lock tongue 311 and lower dead bolt 355 are contracted in lock housing body 1 completely, if the labella of labella locking gear 5 locking latch handle 51 is pressed downwards, labella locking latch 512 is made to be arranged in lock hole II 3132 and lower lock hole II 3542, upper lock tongue 311 and lower dead bolt 355 remain retracted in lock housing body 1 always, namely now only main tongue assembly 7 participates in the locking of antitheft door and labella assembly 3 does not participate in the locking of antitheft door, this function can be used during user room away from keyboard, add the use handiness of the present invention.

As shown in figure 19, it is positioned in labella locking latch handle 51 radial direction in labella locking latch handle collecting hole 523 and has offered latch handle self-locking hole 511, labella locking latch handle locating sleeve 52 offers the latch handle self-locking hole I 521 corresponding with latch handle self-locking hole 511 and latch handle self-locking hole II 522, latch handle self-locking steel ball 54 and latch handle self-locking spring 55 it is provided with in described latch handle self-locking hole 511, when labella locking latch handle guidepost 53 slides into guiding elongated slot 524 upper end, latch handle self-locking steel ball 54 is pressed on latch handle self-locking hole I 521 by latch handle self-locking spring 55, when labella locking latch handle guidepost 53 slides into guiding elongated slot 524 times ends, latch handle self-locking steel ball 54 is pressed on latch handle self-locking hole II 522 by latch handle self-locking spring 55. by self-locking spring, self-locking steel ball is pressed in self-locking hole, it is possible to well keep the state of labella locking latch handle 51, prevent mishandle.

The mechanical antitheft lock of the present invention also comprises the quickly unlocking driving lever assembly 4 being arranged on the downside of lock core assembly 9, as shown in Fig. 2 to Figure 15, described quickly unlocking driving lever assembly 4 comprises interior driving lever handle 41, dead bolt driving lever 42, driving lever Connection Block 43, quickly unlocking driving lever axle sleeve 44, outer driving lever handle 45, quickly unlocking driving lever gag lever post 47 and quickly unlocking shift lever axis 48, described quickly unlocking driving lever axle sleeve 44 is positioned in lock housing body 1, quickly unlocking shift lever axis 48 extends outside lock housing body 1 through quickly unlocking driving lever axle sleeve 44 and quickly unlocking shift lever axis 48 two ends respectively, described interior driving lever handle 41 and outer driving lever handle 45 are vertically connected on the two ends of quickly unlocking shift lever axis 48 respectively, described driving lever Connection Block 43 is enclosed within outside quickly unlocking shift lever axis 48 and is fixedly connected with quickly unlocking shift lever axis 48, described dead bolt driving lever 42 is connected with driving lever Connection Block 43 and extends to master lock tongue post 71 right side edge, and between dead bolt driving lever 42 and positioning support 74, it is connected with returning pull-spring VII 49, it is rotated counterclockwise quickly unlocking shift lever axis 48 and can drive master lock tongue post 71 by dead bolt driving lever 42 and drive master lock tongue 75 to enter released state to lock housing body 1 contract, described quickly unlocking driving lever gag lever post 47 is connected with driving lever Connection Block 43, also being provided with the driving lever limited block 46 for limiting quickly unlocking driving lever gag lever post 47 angle of rotation on the left of quickly unlocking driving lever gag lever post 47, described driving lever limited block 46 is fixedly connected with quickly unlocking driving lever axle sleeve 44.

When user needs room away from keyboard and returns very soon, key is not needed to open the function of antitheft door with regard to energy fast and easy after quickly unlocking driving lever assembly 4 can be used to coordinate labella locking gear 5 to realize of short duration leaving, concrete operation is as follows: when upper lock tongue 311 and lower dead bolt 355 are contracted in lock housing body 1 completely, the labella of labella locking gear 5 locking latch handle 51 is pressed downwards, labella locking latch 512 is made to be arranged in lock hole II 3132 and lower lock hole II 3542, upper lock tongue 311 and lower dead bolt 355 remain retracted in lock housing body 1 always, namely labella assembly 3 does not participate in the locking of antitheft door, now can pull interior driving lever handle 41 when not inserting key make master lock tongue 75 be contracted in lock housing body 1 completely, reach the object that just can open antitheft door without key, use very convenient.

Such as Figure 12 to Figure 14, Figure 16, shown in Figure 17, the right side of the quickly unlocking driving lever gag lever post 47 of the present invention is also provided with driving lever stop means 6, driving lever stop means 6 comprises the spacing handle 61 of driving lever, spacing post 62, driving lever spacing handle guidepost 63 and spacing handle locating sleeve 64, described spacing handle locating sleeve 64 is arranged in lock housing body 1 and is positioned on the right side of quickly unlocking driving lever gag lever post 47, described spacing handle locating sleeve 64 is axially provided with the spacing handle collecting of the driving lever for locating the spacing handle of driving lever 61 hole 644, the spacing handle of driving lever 61 extends in driving lever spacing handle collecting hole 644 and can rotate in driving lever spacing handle collecting hole 644, the spacing handle 61 of driving lever above spacing handle locating sleeve 64 is connected described spacing post 62 with protruding, described spacing handle locating sleeve 64 outer surface is also provided with the guide and limit groove 643 that spacing handle collecting hole 644 connects with driving lever, the central angle of guide and limit groove 643 is 90 ��, described driving lever spacing handle guidepost 63 is through guide and limit groove 643 and is connected with the spacing handle 61 of driving lever being positioned in driving lever spacing handle collecting hole 644, and in driving lever spacing handle 61 rotary course, the spacing handle guidepost 63 of driving lever can slide left and right in guide and limit groove 643. rotate the spacing handle 61 of driving lever of driving lever stop means 6, spacing post 62 is made to be pressed on the right side of the quickly unlocking driving lever gag lever post 47 of quickly unlocking driving lever assembly 4, now the interior driving lever handle 41 of quickly unlocking driving lever assembly 4 and outer driving lever handle 45 all cannot be pulled, and also just by quickly unlocking driving lever assembly 4, master lock tongue 75 are contracted in lock housing body 1.

As shown in figure 17, described driving lever spacing handle 61 radial direction being positioned in driving lever spacing handle collecting hole 644 offers limited location handle self-locking hole 611, spacing handle locating sleeve 64 is offered the spacing handle self-locking hole I 641 corresponding with spacing handle self-locking hole 611 and spacing handle self-locking hole II 642, spacing handle self-locking steel ball 65 and spacing handle self-locking spring 66 it is provided with in described spacing handle self-locking hole 611, when the spacing handle guidepost 63 of driving lever slides into guide and limit groove 643 right-hand member, spacing handle self-locking steel ball 65 is pressed on spacing handle self-locking hole I 641 by spacing handle self-locking spring 66, when the spacing handle guidepost 63 of driving lever slides into guide and limit groove 643 left end, spacing handle self-locking steel ball 65 is pressed on spacing handle self-locking hole II 642 by spacing handle self-locking spring 66.

Also being provided with main tongue locking gear 8 on described positioning support 74, described master lock tongue 75 upper surface is also offered and the elongated slot 751 that main tongue locking gear 8 coordinates. as shown in Figure 21 to 24, main tongue locking gear 8 comprises main tongue locking latch 81, main tongue latch locating sleeve 82, slanted kicking block 83 and oblique top post 84, and described main tongue latch locating sleeve 82 is arranged on positioning support 74 upper surface, as shown in Figure 25, Figure 26, main tongue latch locating sleeve 82 is axially provided with mutually through main tongue latch collecting hole I 822 and main tongue latch collecting hole II 823, main tongue latch collecting hole I 822 is extended to form downwards by main tongue latch locating sleeve 82 upper surface, main tongue latch collecting hole II 823 is upwards extended to form by main tongue latch locating sleeve 82 lower surface, the diameter in main tongue latch collecting hole I 822 is little compared with the diameter that hole II 823 accommodated by main tongue latch, and described locating sleeve 82 outer surface is also provided with the guide path 824 accommodated hole II 823 and connect with main tongue latch, such as Figure 27, shown in Figure 28, described main tongue locking latch 81 comprises latch handle 811, latch main body 812 and latch 813, described latch handle 811 comprises handle main body 8111 and handle connecting portion 8112, handle connecting portion 8112 upper surface concave downward is provided with the handle pilot hole 81121 for position fixing handle main body 8111, the location groove 81112 of 360 �� is offered in the outside of described handle main body 8111 times ends, the location pin-and-hole 81122 corresponding with location groove 81112 is offered outside handle connecting portion 8112, described handle main body 8111 times ends through location pin-and-hole 81122 and extend in the groove 81112 of location by steady brace 8113 after extending to handle pilot hole 81121, thus handle main body 8111 is positioned in handle pilot hole 81121, described latch main body 812 is positioned in main tongue latch collecting hole II 823, handle connecting portion 8112 is connected to latch main body 812 upper end and extends in main tongue latch collecting hole I 822, spring 85 also it is arranged with outside described handle connecting portion 8112, spring 85 is positioned in main tongue latch collecting hole II 823 and the upper end of spring 85 is pressed on main tongue latch collecting upper end, hole II 823, and the lower end of spring 85 is pressed on latch main body 812 by the step surface at middle part, described latch 813 is connected to latch main body 812 times ends and latch 813 is worn positioning support 74 and extended in the elongated slot 751 of master lock tongue 75 upper surface, described slanted kicking block 83 is connected through guide path 824 with latch main body 812, is provided with the inclined-plane 831 that ecto-entad tilts on the right side of slanted kicking block 83 downwards, and described oblique top post 84 is connected with the driver plate 91 of lock core assembly 9, when rotating clockwise driver plate 91 oblique top post 84 be against below the inclined-plane 831 of slanted kicking block 83 and by slanted kicking block 83 upwards jack-up thus drive main tongue locking latch 81 to move up, when latch 813 leaves the elongated slot 751 of master lock tongue 75, master lock tongue 75 can completely be contracted in lock housing body 1 and enter released state.

In the present embodiment, main tongue latch locating sleeve 82 upper surface concave downward is provided with groove 821, the limited block 81111 corresponding with groove 821 also it is provided with outside handle main body 8111, the width of described limited block 81111 is consistent with the width of groove 821, and the length of limited block 81111 is greater than the width of limited impression 821. Upwards being mentioned by the main tongue locking latch 81 of main tongue locking gear 8 during use and rotate handle main body 811 and make limited block 81111 be stuck in above groove 821, now latch 813 is positioned at outside elongated slot 751, thus releases main tongue locking gear 8 to the locking of master lock tongue 75.

Owing to the mechanical type anti-theft of the present invention is locked on the positioning support 74 of master lock tongue 75 to be provided with main tongue locking gear 8, when antitheft door is in the lock state, the main tongue locking latch 81 of main tongue locking gear 8 is under the elastic force effect of spring 85, latch 813 is arranged in the elongated slot 751 of master lock tongue 75 upper surface all the time, if lawless person attempts to use the thin slice with certain degree of hardness from outdoors to opening master lock tongue 75, now master lock tongue 75 is after lock housing body 1 contract certain length, the latch 812 being arranged in elongated slot 751 can stop master lock tongue 75 to continue to lock housing body 1 contract (see Figure 23), therefore master lock tongue 75 can not be contracted in lock housing body 1 completely, antitheft door also just can not realize opening, avoid lawless person when not needing to be opened on doorway when key, effectively raise the theftproof performance of the present invention, when user uses key normally to unlock, pulling driving lever handle 23 drives driver plate 91 to rotate, the oblique top post 84 being connected on driver plate 91 be against below the inclined-plane 831 of slanted kicking block 83 and by slanted kicking block 83 upwards jack-up thus drive latch 813 to move up, last latch 813 leaves elongated slot 751, now master lock tongue 75 can be contracted in lock housing body 1 (see Figure 24) completely, thus realizes the smooth unlatching of antitheft door.

The user less for convenience of the strength such as old man and child uses, and in the present embodiment, is also provided with boosting-rod 10 outside lock housing body 1, and described boosting-rod 10 is hinged on outside lock housing body 1 by location seat 101. After key 102 is put into key hole by user, namely key is compressed in the key hole of lock core assembly 9 by boosting-rod 10 by pressure lower boosting-rod 10 completely, convenient and strength-saving.

Above embodiment is only the better embodiment of the present invention, and the structure of the present invention is not limited to the form that above-described embodiment is enumerated, all do within the spirit and principles in the present invention any amendment, equivalent replacement etc., all should be included within protection scope of the present invention.

Claims (10)

1. a mechanical antitheft lock, comprise lock housing body (1), unblank driving lever assembly (2), labella assembly (3), main tongue assembly (7) and lock core assembly (9), described lock core assembly (9) is positioned in lock housing body (1), unblank driving lever assembly (2) be arranged on lock core assembly (9) upside and with lock core assembly (9) be connected, it is characterized in that, described driving lever assembly (2) of unblanking comprises shift lever axis (21), driving lever axle sleeve (25) and driving lever handle (23), driving lever axle sleeve (25) is positioned in lock housing body (1), shift lever axis (21) is through described driving lever axle sleeve (25) and extends to lock housing body (1) inside, driving lever handle (23) is connected to shift lever axis (21) and is positioned at lock housing body (1) one end outward, one end that described shift lever axis (21) is positioned at lock housing body (1) is also provided with retaining clip (24), described retaining clip (24) is connected by the driver plate (91) of connecting rod (22) with lock core assembly (9), stirring described driving lever handle (23) can drive driver plate (91) to rotate, described main tongue assembly (7) comprises master lock tongue (75), master lock tongue post (71), master lock tongue driving lever (72) and the positioning support (74) for locating master lock tongue (75), described positioning support (74) is arranged in lock housing body (1), master lock tongue (75) can be extended out lock housing body (1) outside through the front end of positioning support (74) and master lock tongue (75), described master lock tongue post (71) is vertically connected on master lock tongue (75) afterbody, and between master lock tongue post (71) and positioning support (74), it is connected with returning pull-spring I (73), master lock tongue driving lever (72) is connected with the driver plate (91) of lock core assembly (9) and extends to master lock tongue post (71) right side edge, it is connected with returning pull-spring II (76) between described master lock tongue driving lever (72) and positioning support (74), the driver plate (91) that turns clockwise can drive master lock tongue post (71) by master lock tongue driving lever (72) and drive master lock tongue (75) to enter released state to lock housing body (1) contract, described labella assembly (3) comprises upper lock tongue assembly, lower dead bolt assembly, linkage cross bar (32), secondary lock tongue post (33) and secondary lock tongue driving lever (34), described upper lock tongue assembly is positioned at, by upper positioning support (314), the outside that lock housing body (1) front end that is interior and upper lock tongue assembly can be extended out lock housing body (1) upper end, described lower dead bolt assembly is positioned at, by lower positioning support (353), the outside that lock housing body (1) front end that is interior and lower dead bolt assembly can be extended out lock housing body (1) lower end, described linkage cross bar (32) is sleeved on driving lever axle sleeve (25) outside and can rotate around driving lever axle sleeve (25), and it is connected with returning pull-spring III (321) between the cross bar that links (32) and lock core assembly (9), described upper lock tongue assembly, lower dead bolt assembly is hinged with the two ends of linkage cross bar (32) respectively, described secondary lock tongue post (33) is connected with lower dead bolt assembly, secondary lock tongue driving lever (34) is connected with the driver plate (91) of lock core assembly (9) and extends to secondary lock tongue post (33) lower edge, it is connected with returning pull-spring IV (341) between described secondary lock tongue driving lever (34) and lock core assembly (9), the driver plate (91) that turns clockwise can drive secondary lock tongue post (33) by secondary lock tongue driving lever (34) and drive upper lock tongue assembly and lower dead bolt assembly to enter released state to lock housing body (1) contract.

2. mechanical antitheft lock as claimed in claim 1, it is characterized in that, described upper lock tongue assembly comprises upper lock tongue (311), upper pull bar main body (313), upper drag link (315) and upper gangbar (316), described upper lock tongue (311) is connected to the front end of pull bar main body (313), upper drag link (315) is vertically connected on the afterbody of pull bar main body (313), described upper pull bar main body (313) can be extended out the outside of lock housing body (1) upper end through the upper lock tongue (311) of upper positioning support (314) and upper pull bar main body (313) front end, upper pull bar main body (313) is connected by the latus superius of returning pull-spring V (312) with lock housing body (1), described upper gangbar (316) one end and upper drag link (315) are hinged, the other end is hinged with the right-hand member of linkage cross bar (32), described lower dead bolt assembly comprises lower dead bolt (355), lower link main body (354), lower drag link (352) and lower gangbar (351), described lower dead bolt (355) is connected to the front end of lower link main body (354), lower drag link (352) is vertically connected on the afterbody of lower link main body (351), described lower link main body (354) can be extended out the outside of lock housing body (1) lower end through the lower dead bolt (355) of lower positioning support (353) and lower link main body (354) front end, lower link main body (354) is connected by the lower side plate of returning pull-spring VI (356) with lock housing body (1), described lower gangbar (351) one end and lower drag link (352) are hinged, the other end is hinged with the left end of linkage cross bar (32), described secondary lock tongue post (33) is connected with lower gangbar (351).

3. mechanical antitheft lock as claimed in claim 2, it is characterized in that, described upper positioning support (314) and lower positioning support (353) are also respectively arranged with labella locking gear (5), upper pull bar main body (313) upper surface through upper positioning support (314) has offered upper lock hole I (3131) and upper lock hole II (3132), and lower link main body (354) upper surface through lower positioning support (353) has offered lower lock hole I (3541) and lower lock hole II (3542); described labella locking gear (5) comprises labella locking latch handle (51), labella locking latch handle locating sleeve (52) and labella locking latch handle guidepost (53), labella locking latch handle locating sleeve (52) is separately fixed at positioning support (314) and lower positioning support (353) upper surface, labella locking latch handle locating sleeve (52) is axially provided with locking latch handle collecting hole of the labella for locating labella locking latch handle (51) (523), labella locking latch handle locating sleeve (52) outer surface is also provided with the guiding elongated slot (524) locking latch handle collecting hole (523) and connecting with labella, described labella locking latch handle (51) is positioned in labella locking latch handle collecting hole (523) and labella locking latch handle (51) can lock in latch handle collecting hole (523) at labella and moves up and down, labella locking latch handle guidepost (53) is through guiding elongated slot (524) and locks latch handle (51) with labella and is connected, labella locking latch handle (51) moves up and down labella locking latch handle guidepost (53) in process and can slide up and down in guiding elongated slot (524), described labella locking latch handle (51) front end is also connected with labella locking latch (512), during locking state, labella locking latch (512) on upper positioning support (314) through upper positioning support (314) and extends in upper lock hole I (3131) or upper lock hole II (3132), and labella locking latch (512) on lower positioning support (353) through lower positioning support (353) and extends in lower lock hole I (3541) or lower lock hole II (3542).

4. mechanical antitheft lock as claimed in claim 3, it is characterized in that, the described labella being positioned at labella locking latch handle collecting hole (523) locks and has offered latch handle self-locking hole (511) in latch handle (51) radial direction, labella locking latch handle locating sleeve (52) offers the latch handle self-locking hole I (521) corresponding with latch handle self-locking hole (511) and latch handle self-locking hole II (522), latch handle self-locking steel ball (54) and latch handle self-locking spring (55) it is provided with in described latch handle self-locking hole (511), when labella locking latch handle guidepost (53) slides into guiding elongated slot (524) upper end, latch handle self-locking steel ball (54) is pressed on latch handle self-locking hole I (521) by latch handle self-locking spring (55), when labella locking latch handle guidepost (53) slides into guiding elongated slot (524) lower end, latch handle self-locking steel ball (54) is pressed on latch handle self-locking hole II (522) by latch handle self-locking spring (55).

5. mechanical antitheft lock as claimed in claim 1, it is characterized in that, this mechanical antitheft lock also comprises quickly unlocking driving lever assembly (4) being arranged on lock core assembly (9) downside, described quickly unlocking driving lever assembly (4) comprises interior driving lever handle (41), dead bolt driving lever (42), driving lever Connection Block (43), quickly unlocking driving lever axle sleeve (44), outer driving lever handle (45), quickly unlocking driving lever gag lever post (47) and quickly unlocking shift lever axis (48), described quickly unlocking driving lever axle sleeve (44) is positioned in lock housing body (1), quickly unlocking shift lever axis (48) extends lock housing body (1) outside respectively through quickly unlocking driving lever axle sleeve (44) and quickly unlocking shift lever axis (48) two ends, described interior driving lever handle (41) and outer driving lever handle (45) are vertically connected on the two ends of quickly unlocking shift lever axis (48) respectively, described driving lever Connection Block (43) is enclosed within quickly unlocking shift lever axis (48) outside and is fixedly connected with quickly unlocking shift lever axis (48), described dead bolt driving lever (42) is connected with driving lever Connection Block (43) and extends to master lock tongue post (71) right side edge, and between dead bolt driving lever (42) and positioning support (74), it is connected with returning pull-spring VII (49), being rotated counterclockwise quickly unlocking shift lever axis (48) can drive master lock tongue post (71) by dead bolt driving lever (42) and drive master lock tongue (75) to enter released state to lock housing body (1) contract, described quickly unlocking driving lever gag lever post (47) is connected with driving lever Connection Block (43), quickly unlocking driving lever gag lever post (47) left side is also provided with the driving lever limited block (46) for limiting quickly unlocking driving lever gag lever post (47) angle of rotation, and described driving lever limited block (46) is fixedly connected with quickly unlocking driving lever axle sleeve (44).

6. mechanical antitheft lock as claimed in claim 5, it is characterized in that, the right side of described quickly unlocking driving lever gag lever post (47) is also provided with driving lever stop means (6), driving lever stop means (6) comprises the spacing handle of driving lever (61), spacing post (62), driving lever spacing handle guidepost (63) and spacing handle locating sleeve (64), described spacing handle locating sleeve (64) is arranged in lock housing body (1) and is positioned at quickly unlocking driving lever gag lever post (47) right side, described spacing handle locating sleeve (64) is axially provided with spacing handle collecting hole (644) of the driving lever for locating the spacing handle of driving lever (61), the spacing handle of driving lever (61) extends in driving lever spacing handle collecting hole (644) and can rotate in spacing handle collecting hole (644) of driving lever, described spacing post (62) is connected with the spacing handle of the driving lever (61) protruding spacing handle locating sleeve (64) top, described spacing handle locating sleeve (64) outer surface is also provided with the guide and limit groove (643) that spacing handle collecting hole (644) connects with driving lever, the central angle of guide and limit groove (643) is 90 ��, described driving lever spacing handle guidepost (63) is through guide and limit groove (643) and is connected with the spacing handle of the driving lever (61) being positioned in driving lever spacing handle collecting hole (644), and in driving lever spacing handle (61) rotary course, the spacing handle guidepost (63) of driving lever can be slided left and right in guide and limit groove (643).

7. mechanical antitheft lock as claimed in claim 6, it is characterized in that, limited location handle self-locking hole (611) is offered on the described spacing handle of the driving lever (61) being positioned in driving lever spacing handle collecting hole (644) is radial, spacing handle locating sleeve (64) is offered the spacing handle self-locking hole I (641) corresponding with spacing handle self-locking hole (611) and spacing handle self-locking hole II (642), it is provided with spacing handle self-locking steel ball (65) and spacing handle self-locking spring (66) in described spacing handle self-locking hole (611), when the spacing handle guidepost (63) of driving lever slides into guide and limit groove (643) right-hand member, spacing handle self-locking steel ball (65) is pressed on spacing handle self-locking hole I (641) by spacing handle self-locking spring (66), when the spacing handle guidepost (63) of driving lever slides into guide and limit groove (643) left end, spacing handle self-locking steel ball (65) is pressed on spacing handle self-locking hole II (642) by spacing handle self-locking spring (66).

8. mechanical antitheft lock as claimed in claim 1, it is characterized in that, described positioning support (74) is also provided with main tongue locking gear (8), described master lock tongue (75) upper surface is also offered and the elongated slot (751) that main tongue locking gear (8) coordinates, described main tongue locking gear (8) comprises main tongue locking latch (81), main tongue latch locating sleeve (82), slanted kicking block (83) and oblique top post (84), described main tongue latch locating sleeve (82) is arranged on positioning support (74) upper surface, main tongue latch locating sleeve (82) is axially provided with mutually through main tongue latch collecting hole I (822) and main tongue latch collecting hole II (823), main tongue latch collecting hole I (822) is extended to form downwards by main tongue latch locating sleeve (82) upper surface, main tongue latch collecting hole II (823) is upwards extended to form by main tongue latch locating sleeve (82) lower surface, the diameter in main tongue latch collecting hole I (822) is little compared with the diameter that hole II (823) accommodated by main tongue latch, described locating sleeve (82) outer surface is also provided with the guide path (824) accommodated hole II (823) and connect with main tongue latch, described main tongue locking latch (81) comprises latch handle (811), latch main body (812) and latch (813), described latch main body (812) is positioned in main tongue latch collecting hole II (823), latch handle (811) is connected to latch main body (812) upper end and extends in main tongue latch collecting hole I (822), described latch handle (811) outside is also arranged with spring (85), spring (85) is positioned in main tongue latch collecting hole II (823) and the upper end of spring (85) is pressed on main tongue latch collecting upper end, hole II (823), the lower end of spring (85) is pressed on latch main body (812) by the step surface at middle part, described latch (813) is connected to latch main body (812) lower end and latch (813) is worn positioning support (74) and extended in the elongated slot (751) of master lock tongue (75) upper surface, described slanted kicking block (83) is connected through guide path (824) with latch main body (812), and slanted kicking block (83) right side is provided with the inclined-plane (831) that ecto-entad tilts downwards, and described oblique top post (84) is connected with the driver plate (91) of lock core assembly (9), when rotating clockwise driver plate (91) oblique top post (84) be against slanted kicking block (83) inclined-plane (831) lower section and by slanted kicking block (83) upwards jack-up thus drive main tongue locking latch (81) move up, when latch (813) leaves elongated slot (751) of master lock tongue (75), master lock tongue (75) can completely be contracted in lock housing body (1) and enter released state.

9. mechanical antitheft lock as claimed in claim 8, it is characterized in that, described latch handle (811) comprises handle main body (8111) and handle connecting portion (8112), handle connecting portion (8112) upper surface concave downward is provided with the handle pilot hole (81121) for position fixing handle main body (8111), the location groove (81112) of 360 �� is offered in the outside of described handle main body (8111) lower end, the location pin-and-hole (81122) corresponding with location groove (81112) is offered in handle connecting portion (8112) outside, described handle main body (8111) lower end extends to handle pilot hole (81121) and through location pin-and-hole (81122) and extends in location groove (81112) by steady brace (8113) afterwards, thus handle main body (8111) is positioned in handle pilot hole (81121), described main tongue latch locating sleeve (82) upper surface concave downward is provided with groove (821), handle main body (8111) outside is also provided with the limited block (81111) corresponding with groove (821), the width of described limited block (81111) is consistent with the width of groove (821), and the length of limited block (81111) is greater than the width of limited impression (821).

10. mechanical antitheft lock as claimed in claim 1, it is characterized in that, described lock housing body (1) outside is also provided with the boosting-rod (10) for being compressed in the key hole of lock core assembly (9) completely by key (102), and described boosting-rod (10) is hinged on lock housing body (1) outside by location seat (101).