CN110029885A - The fixed solenoid actuated clutch intelligent anti-theft lock of lock cylinder for safety box - Google Patents

Abstract

A kind of fixed solenoid actuated clutch intelligent anti-theft lock of lock cylinder for safety box, it is related to anti-theft lock field, it is mainly to solve the problems, such as directly match with large-scale safety cabinet with the related patents technology that " a kind of fixed cross mechanical anti-theft lock of lock core " is core, scheme is to cancel the cam mechanism in above-mentioned core technology, it is substituted with a latch that can be moved back and forth, the special construction of the latch plays control action same as cam mechanism to lock core group, 1 bayonet lock that can be moved back and forth up and down of activity assembly on latch, in card hole in the also activity insertion locking bolt driving transmission device of bayonet lock lower end, bayonet lock is driven to move up by locking intracorporal sliding electromagnet again, to realize key unlocking, the performance characteristics of the energy opened door leaf such as intelligent recognition unlocking, and original core technology is constant, former intelligence is compensated for latch Short slab, product safety performance significantly improves, and lock structure significantly simplifies, cost reduces, is stable and reliable for performance.

Description

The fixed solenoid actuated clutch intelligent anti-theft lock of lock cylinder for safety box

Technical field

The present invention relates to a kind of theftproof locks, and in particular to a kind of fixed solenoid actuated clutch intelligence of lock cylinder for safety box Theftproof lock.

Background technique

To overcome various drawbacks existing for existing machinery theftproof lock in the market and finger-print puzzle lock, a kind of " lock core is utilized The series of products that the patent core technology of fixed cross mechanical anti-theft lock " (ZL201410020215.X) is developed, including " one Kind digital code, monomer key combination set " (ZL201610067763.7), " a kind of copying apparatus of key duplicating machine " (ZL201610068057.4), " the fixed cross mechanical anti-theft lock of lock core matched with Fingerprint Lock " (ZL201610990489.0), " a kind of cam mechanism of Fingerprint Lock " (ZL201611045195.7), " double-inserting type security door and outer Hanging locking device " (ZL201610129609.8), " a kind of swivel becket forced resetting device of theftproof lock " (ZL201710390280.5), " cam mechanism and swivel becket forced resetting device of Fingerprint Lock " (ZL201710435512.4), " stopping type handle automatically resets and idling device " (ZL201710393215.8), " the single clutch cam mechanism of Fingerprint Lock " (application number 201810363492.9) etc., is mainly characterized by: opening new locking principle, technology fail to open lockset；Lock Tool (including lock core) is installed in door leaf, and lock body is contacted with the stiffening plate on the inside of door leaf outer panels and fixing assembling, and lockset is no longer It is vacant state, preventing destructing performance significantly improves；Anti- skid plate is equipped on the outside of lock core and anti-drilling sheet is protected, and is had common antitheft It locks the anti-lock tool not having and destroys function；Handle has overload protection that can dally；It is living using locking bolt, lock tongue and lock body external hanging type The locking mode of dynamic connection, protection lockset is from destroying；Pellet with key contact is steel ball, and key plug is easy；Operation Simply, that is, key does not rotate, pushes handle unlocking after being inserted into key, and locking does not have to key, the anti-handle that mentions is locked；Digital generation can be used Code represents key, convenient for hiding keeping and preparing key；It is matched with fingerprint, encryption recognition system, compensates for former Fingerprint Lock The short slab of middle machinery unlocking part, that is, pass through combination among the strong ones, make optimal Fingerprint Lock, etc..Each patent researched and developed after above-mentioned produces Product constantly improve the technical application of " a kind of fixed cross mechanical anti-theft lock of lock core " as Aided design.

However, the application range of above-mentioned all kinds of patents is mainly the anti-theft lock field on security door, it can although once mentioning For safety cabinet (case) etc., but fail propose specific embodiment, especially the lockset type of safety cabinet (case), opening program, Driving method, size etc. are multifarious, more fail to distinguish concrete condition and targetedly propose detailed scheme.

Currently, theftproof lock used in common safety cabinet (case) includes inserted-core mechanical lock, mechanical code lock in the market With smart lock etc., wherein smart lock includes the opening ways such as fingerprint recognition, electronic cipher identification, recognition of face again.Size is smaller The generally common handle such as safety cabinet (case) unlock, but the common wheel handle opened door leaf such as large-scale safety cabinet (case), and big portion Point wheel handle used is additionally provided with overload protection arrangement, i.e., key is incorrect or fingerprint, password identification are incorrect and strength twist wheel When handle, the idle running of wheel handle, safety cabinet (case) cannot be opened.In addition, the relevant criterion according to the various countries including China is advised Fixed, smart lock must be equipped with mechanical key, so, the opening ways of most of safety cabinet include that intelligent opening and key open two Kind mode, if key unlocking mechanism antitheft performance is unqualified, will become influences safety cabinet (case) general safety performance Short slab, so, by above-mentioned related invention patented technology be applied to safety cabinet (case) on, exactly in order to make up key unlocking in terms of Short slab, Makes Perfect Pruducties.However, causing standby key hole and wheel since the wheel handle size of large-scale safety cabinet (case) is larger The axle center distance also larger (200 millimeters of common-size or so) of handle, and " a kind of fixed cross mechanical anti-theft lock of lock core " Handle and lockhole distance smaller (48~56 millimeters of Commonly Used Size), so if still being unlocked using wheel handle, it is necessary to which lockhole is separate Handle is taken turns, it cannot be directly using the handle of cam mechanism and coaxial inner conductor in the patented technology as unlocking driving machine Structure, it is necessary to be adjusted and be improved, especially the cam mechanism in aforementioned fingerprint lock class patented technology includes clutch, motor The power-driven gears such as (i.e. motor) or electromagnet and cam mechanism close to, and key is only plugged, is not rotated, and key until It is inserted into the effect of the correct key information of bottom competence exertion, i.e. key itself can not transmit driving force, therefore also need to redesign big Arrangement of clutch in the intelligent lock of type safety cabinet (case) and the auxiliary plan with lockset core component.

Summary of the invention

For overcome it is above-mentioned cannot be straight with the related patents technology that " a kind of fixed cross mechanical anti-theft lock of lock core " is core It connects and provides a kind of fixed solenoid actuated clutch intelligence of lock cylinder for safety box with the matching used deficiency of large-scale safety cabinet, the present invention Energy theftproof lock, overload protection arrangement and other locking bolt driving transmission devices using the wheel handle itself of former safety cabinet, will be upper The cam mechanism stated in core technology is cancelled, and is substituted with a latch that can be moved back and forth, the special construction of the latch Control action same as cam mechanism can be played to lock core group, i.e. key is correct, and latch can be positive whole mobile；Key is not Correctly or without key, then latch cannot be whole mobile；If inside and outside swivel becket cannot automatically reset, reversely moved by latch It is dynamic to complete forced resetting.On this basis, 1 bayonet lock that can be moved back and forth up and down, the bayonet lock are assembled in activity again on latch Can be mobile with latch level of synchronization, the card hole of a component in the lower bayonet lock of static state also activity insertion locking bolt driving transmission device In, it is moved horizontally to control locking bolt driving transmission device, then by being fixedly mounted on the intracorporal sliding electromagnet driving of lock Bayonet lock, which moves up perhaps bayonet lock and automatically resets, to be moved down or bayonet lock remains stationary, and effect is: when fingerprint, password identification are correct When, bayonet lock moves up, and is no longer prevented from the positive whole movement of locking bolt driving transmission device, and door leaf can be opened；Fingerprint, password identification are not When correct, bayonet lock is motionless, prevents locking bolt driving transmission device from doing whole movement, door leaf cannot be opened；When being inserted into correct key, Latch, bayonet lock and locking bolt driving transmission device positive can move to terminal, and door leaf can be opened；Key is incorrect or nothing , then cannot be whole mobile when key, door leaf cannot be opened, to realize that the performance of a variety of unlocking modes energy opened door leaf is wanted It asks, meanwhile, the performance characteristics of original core technology are constant, and lock structure is made significantly to simplify, reduce cost.

The present invention adopts the following technical scheme: a kind of fixed solenoid actuated clutch intelligent anti-theft of lock cylinder for safety box Lock, including lock body, lock core group and sliding electromagnet, wherein the outside of lock body is anti-skid plate, and the inside of lock body is backboard, lock body The part between anti-skid plate and backboard be coaming plate, coaming plate is equipped with mounting ear, and lock body passes through through-hole, the spiral shell on mounting ear Fixing assembling on the inside of the door leaf of bolt or screw and safety cabinet, lock core group by lock core, interior swivel becket, outer swivel becket, pellet group, dial Ring, lock post, reset post and tension spring connecting column are constituted, and the lockhole of lock core is cross, the flat axis and back at the inboard end of lock core Shallow bore hole activity on the inside of slotted hole fixing assembling on plate, the outboard end of lock core and anti-skid plate is assembled, outside interior swivel becket and lock core Disc activity assembly, outer swivel becket and interior swivel becket periphery activity are assembled, and are provided on lock core, interior swivel becket and outer swivel becket 24 marble holes, built with 24 groups of pellets, every group of pellet includes 4 steel balls, 1 cylindrical long marble and 1 spring, respectively The length of long marble is equal to the thickness of interior swivel becket, while 2 times of also equal to diameter of the steel ball, in each marble hole of lock core Equipped with 3 steel balls, and outmost steel ball is flushed with lock core periphery height, in 24 groups of pellets of interior swivel becket and outer swivel becket Kong Zhong is wherein packed into the sequence of pellet and spring from inside to outside in several marble holes are as follows: 1 steel ball, 1 long marble and 1 Spring has several long marbles to be across between interior swivel becket and outer swivel becket, remaining of interior swivel becket and outer swivel becket are each The sequence of pellet and spring is packed into marble hole from inside to outside are as follows: 1 long marble, 1 steel ball and 1 spring, i.e. long marble are only In the marble hole of interior swivel becket, key is cross, and the tartar of key is made of the edge shape of corresponding 24 positions, often A position is respectively wave crest or trough, and the height of each wave crest is all the same, and the depth of each trough is also all the same, the height of peaks and troughs Degree difference is equal to diameter of the steel ball, the corresponding wave crest of the pellet group that long marble is across between interior swivel becket and outer swivel becket, long marble Pellet group in interior swivel becket corresponds to trough, and the inboard end of interior swivel becket is equipped with the fixed dress of ring of jag with 1 Match, the inboard end of outer swivel becket is equipped with 1 gap, and the jag of ring is located in the gap, and the jag of ring is vertical Direction is additionally provided with limited post, which is inserted into the slotted hole of backboard, and movable wherein can run certain distance, turns outside Lock post, reset post and tension spring connecting column are fixed on rotating ring, wherein one end activity of tension spring connecting column and reset tension spring connects It connects, the other end of reset tension spring is flexibly connected with lock body, and the center position that anti-skid plate corresponds to shallow bore hole is equipped with cross bore, pick-proof The outside of plate is equipped with annular groove centered on cross bore, and assembles with the outer rim of shield, movable between shield and anti-skid plate 1 anti-drilling sheet is assembled, after lockset installation, anti-skid plate and safety cabinet door leaf steel plate interior side contacts, the outboard end of shield, anti-drilling sheet Face pass through the through-hole of door leaf steel plate and with flushed on the outside of door leaf steel plate, the locking bolt driving transmission device packet of safety cabinet where lockset It includes wheel handle and takes turns swing rod, horizontal push plate and secondary push plate etc. that handle rotates synchronously, wherein secondary push plate is connected with locking bolt, synchronous shifting It is dynamic, 1 pin shaft is fixed on horizontal push plate, and activity is inserted into 1 slotted hole of secondary push plate, the pin shaft sliding in this slotted hole Distance is squeegee hopover, drives secondary push plate to follow reciprocating movement when horizontal push plate moves back and forth, and secondary push plate can lag movement, The length run less is equal to squeegee hopover, and when positive and negative two directions rotating wheel handle, wheel handle drives horizontal push plate to move back and forth horizontally Dynamic, horizontal push plate drives secondary push plate and each locking bolt to move back and forth again, for completing locking or the unlatching of safety cabinet door leaf, works as horizontal push plate It cannot move horizontally and when strength twist wheel handle, the overload protection arrangement for taking turns handle makes to take turns handle idle running, on the right side of lock core group Backboard on 1 sliding electromagnet of fixing assembling, which includes shell, coil, fixed core, resets push spring and cylinder The dynamic iron core of shape moves the vertically reciprocating movement of iron core energy, is additionally provided with intelligent identification device, intelligent recognition on safety cabinet where lockset Mode be fingerprint recognition, password comparison identification, recognition of face or other information identification method one or more of side Formula, when information identification is correct, the dynamic iron core orientation that intelligent identification device can issue signal instruction control sliding electromagnet is moved Dynamic, it is characterized in that: being additionally provided with latch in lock body, below lock core group, which is integrally in rectangular shape, latch Right end be equipped with vertically oriented aperture there-through i.e. hang down slide opening, hang down slide opening left side and lock core axial line it is equidirectional be equipped with 1 through-hole, 1 preceding slide-bar of mounted inside, which is the short axle of step axis shape, and extend out to the outside of latch, outside The groove of side short axle horizontal direction corresponding with the inside of anti-skid plate, that is, external slideway activity assembly, and can be horizontal in the external slideway It slides, slotted hole, that is, inner slide activity assembly of the inside short axle of preceding slide-bar horizontal direction corresponding with backboard, and can be at this Sliding horizontal in inner slide, the outside of latch left end, inside and with the axial line of lock core is equidirectional is respectively equipped with 1 blind hole, Two blind hole coaxial inner conductors, slide-bar after internal each assembly 1, slide-bar is step axis shape after two, on the outside of rear slide-bar Outside short axle extend out to the outside of latch, and another external slideway activity corresponding with the inside of anti-skid plate is assembled, and can be The inboard short axle of sliding horizontal in the external slideway, the rear slide-bar on the inside of latch also extend out to the outside of latch, and and backboard Another corresponding inner slide activity assembly, and sliding horizontal, i.e. latch can be moved back and forth horizontally in the inner slide Dynamic, the upper surface corresponding position in the middle part of latch is equipped with 1 sliding slot, that is, lock post sliding slot, and width is greater than the diameter of lock post, And lock post is inserted into the lock post sliding slot, and the left end face of lock post sliding slot is second boss, lock post sliding slot Right end top extends to latch inboard end face to inboard, and forms 1 gap, which is main sliding slot, the depth of main sliding slot Degree and length are respectively smaller than the depth and length of lock post sliding slot, the right end face of main sliding slot and the right end face of lock post sliding slot It flushes, the width of main sliding slot is not less than the thickness of the jag of ring, and the jag of ring is inserted into main sliding slot, main The left end face of sliding slot is first boss, and first boss is additionally provided with 1 one in the right side of second boss, the left upper portion of latch The groove of depthkeeping degree, which resets, pushes away slot, and width is greater than the diameter of reset post, and reset post is inserted into resetting and push away in slot, multiple Position pushes away the right end end face of slot to reset boss, and the internal activity for the slide opening that hangs down assembles 1 bayonet lock, and the top corresponding position of horizontal push plate is set There is 1 through-hole i.e. card hole, coaming plate lower part is correspondingly provided with slotted hole i.e. glide path, under static, after the lower end of bayonet lock passes through glide path Also in activity insertion card hole, when bayonet lock and mobile latch synchronous reciprocating, bayonet lock slides in glide path, and the top of bayonet lock is The center of flat bayonet lock end plate, bayonet lock end plate is equipped with through-hole, that is, sideslip hole, and the lower end for moving iron core is equipped with opening, hangs down with opening Histogram is additionally provided with 1 slide bar to hinged shaft is equipped in lock body, the left end of the slide bar is flat slide bar end plate, slide bar end plate Center is equipped with through-hole, that is, hinge hole, and slide bar end plate activity is inserted into the opening of dynamic iron core lower end, and is assembled with hinged shaft activity, i.e., sliding Bar can swing certain angle on the hinged shaft of dynamic iron core lower end, and the right side corresponding position of coaming plate is equipped with 1 through-hole, that is, slide bar jack, Slide bar activity pass through bayonet lock end plate sideslip hole after, the right end of slide bar also activity insertion slide bar jack in, and with slide bar jack Certain gap is kept, when using key opening safety cabinet door fan, is first inserted into key, the positive direction, that is, clockwise since static Direction rotating wheel handle, the axis for taking turns handle drive swing rod to swing, and swing rod pushes horizontal push plate to move right again, the card hole on horizontal push plate Bayonet lock and latch is pushed to move right, first boss with the protrusion end in contact of ring, and pushes ring, interior swivel becket inverse first The jag of hour hands rotation, ring makes outer swivel becket follow synchronous rotation by the top edge of the gap of the outer swivel becket of promotion, And then interior swivel becket, outer swivel becket is made to synchronize and rotate counterclockwise certain angle, when the jag of ring is in the upper surface of latch When skidding, the upper right end in contact of the slotted hole on limited post and backboard on the jag of ring, and ring and interior turn can be prevented Rotating ring continues to rotate, and the distance that bayonet lock and latch move right at this time is squeegee hopover, and second boss connects with lock post later It touches and outer swivel becket is pushed to rotate, if key is correct, second boss can push outer swivel becket to continue individually rotation, and latch is put down Push plate and secondary push plate can also continue to run to the right, until lock post is also after the upper surface of latch is skidded, latch, horizontal push plate And secondary push plate can also continue to run to the right to terminal and opened door leaf, in above process, bayonet lock end plate slided on slide bar to Right side terminal, when key is incorrect or without key, outer swivel becket cannot continue individually to rotate, then latch, horizontal push plate and pair Push plate cannot continue to run to the right to terminal, and door leaf cannot be opened, if strength twist wheel handle, take turns handle idle running, locking When operation, wheel handle is reversely rotated, wheel handle drives horizontal push plate and locking bolt to be moved to the left to terminal, while latch also Xiang Zuoyi It is dynamic to terminal, bayonet lock end plate slided on slide bar to the static position in left side, outer swivel becket, interior swivel becket are in reset tension spring at this time Under the action of successively automatically reset, if outer swivel becket, interior swivel becket fail to automatically reset in the process, latch is to moving to left When dynamic, and after second boss crosses the skidding position of lock post, resetting boss can contact with reset post and push outer rotation Ring resets rotation, the later period of the process clockwise, and the gap of outer swivel becket also pushes the jag of ring to keep interior swivel becket also multiple Position rotation, then interior swivel becket, outer swivel becket reset to terminal, when being unlocked using intelligent recognition mode, if information identification is just Really, then it moves iron core to move up and the left end of slide bar is pulled to move up, and then bayonet lock moves up, and the lower end of bayonet lock is from horizontal push plate It is extracted out in card hole, then horizontal push plate can move right, and safety cabinet door leaf can be opened, when locking again after fingerprint or password unlocking, instead It to rotating wheel handle, takes turns handle and horizontal push plate and locking bolt is driven to be moved to the left to terminal, move iron core and resetting push spring and self gravity Downward reset movement under effect, while bayonet lock being pushed also to move down and reinsert in the card hole of horizontal push plate, if information identifies Incorrect, then dynamic iron core, bayonet lock are stationary, if being rotated clockwise wheel handle at this time, horizontal push plate pushes bayonet lock and lock Stops moves right, and when the jag of ring is after the upper surface of latch is skidded, outer swivel becket cannot continue individually to rotate, lock Stops can not continue to move right, and safety cabinet cannot be opened.

In above scheme, the application of latch is substantially instead of in " a kind of fixed cross mechanical anti-theft lock of lock core " Cam mechanism, and so that lock body structure is significantly simplified, and then save space, it is total to reduce lock body while reducing cost Size；There is lost motion functionality because wheel handle itself is equipped with overload protection arrangement, instead of the overload protection of above-mentioned cam mechanism Device；The application of reset post and reset boss is then instead of the " locking in " a kind of swivel becket forced resetting device of theftproof lock " Column slideway ", " reset post slideway ", " third flange " and " reset pushes away edge " function.

Backboard can design into a single integrated structure with coaming plate, and be process using impact style.Between backboard and anti-skid plate Pass through screw fixing assembling.

Because key is incorrect or without key or when fingerprint, password bad, although door leaf cannot be opened, every time just When to rotating wheel handle, interior swivel becket, outer swivel becket can synchronous rotary certain angle, until outer swivel becket cannot individually continue Rotation, i.e., horizontal push plate, latch can run to the right certain distance, i.e. squeegee hopover, so secondary push plate lag runs and lacks fortune The length of row squeegee hopover, it is therefore an objective to prevent locking bolt to be pulled length identical with squeegee hopover to the right, it is advantageously ensured that locking bolt Effective length and door leaf pick-proof performance.

The beneficial effects of the present invention are: theftproof lock of the invention will be with " a kind of fixed cross mechanical anti-theft lock of lock core " In the related patents technical application to large-scale safety cabinet of core, the various functions of key unlocking mechanism, including the unlatching of anti-technology, The main performance index such as anti-lock tool destructiveness unlatching are retained, and short slab existing for former smart lock, product shelves are compensated for It is secondary to significantly improve；Lockset is used to complete the various unlocking modes such as fingerprint recognition is unlocked, password identification is unlocked, standby key is unlocked Executing agency and control mechanism, structure is simple, overall cost is low, and performance is stable, reliable.Meanwhile lock core and wheel handle Between distance increase considerably, and it is adjustable, can satisfy product shape design requirement.

Below with reference to Fig. 1 to Figure 31, the present invention is further described.

Detailed description of the invention

Fig. 1: lockset general structure schematic diagram (direction outside in) of the present invention；

Fig. 2: Fig. 1 rearview (direction inside-out)；

Fig. 3: lockset of the present invention and locking bolt driving transmission device assembling schematic diagram are (under static；Direction inside-out)；

Fig. 4: lockset operating status schematic diagram of the present invention is (when the jag of ring starts to skid；Direction inside-out)；

Fig. 5: lockset operating status schematic diagram of the present invention is (when key unlocking, lock post start to skid；Direction inside-out)；

Fig. 6: lockset operating status schematic diagram of the present invention is (when key unlocking, door leaf are opened；Direction inside-out)；

Fig. 7: lockset operating status schematic diagram of the present invention is (when the intelligent openings door leaf such as fingerprint recognition；Direction inside-out)；

Fig. 8: latch main view；

Fig. 9: Fig. 8 top view；

Figure 10: Fig. 8 left view；

Figure 11: latch and preceding slide-bar, rear slide-bar assembling schematic diagram；

Figure 12: slide bar main view；

Figure 13: Figure 12 top view；

Figure 14: bayonet lock main view；

Figure 15: Figure 14 left view；

Figure 16: backboard and coaming plate schematic diagram；

Figure 17: anti-skid plate schematic diagram；

Figure 18: Figure 17 top view；

Figure 19: Figure 17 A-A cross-sectional view；

Figure 20: lock core group schematic diagram；

Figure 21: Figure 20 top view；

Figure 22: Figure 20 right view；

Figure 23: Figure 20 rearview；

Figure 24: outer swivel becket schematic diagram；

Figure 25: ring schematic diagram；

Figure 26: Figure 25 top view；

Figure 27: shield main view；

Figure 28: Figure 27 top view；

Figure 29: anti-drilling sheet main view；

Figure 30: Figure 29 top view；

Figure 31: lockset general structure schematic diagram is (under static when electromagnet is fixed on latch；Direction inside-out).

In each figure: 1: lock body, 2: anti-skid plate, 3: shallow bore hole, 4: annular groove, 5: external slideway, 6: shield, 7: anti-drilling sheet, 8: Backboard, 9: inner slide, 10: coaming plate, 11: mounting ear, 12: glide path, 13: slide bar jack, 14: lock core group, 15: lock core, 16: interior Swivel becket, 17: outer swivel becket, 18: ring, 19: jag, 20: limited post, 21: lock post, 22: reset post, 23: tension spring connects Column is connect, 24: latch, 25: hang down slide opening, and 26: main sliding slot, 27: first boss, 28: lock post sliding slot, 29: second boss, 30: Reset pushes away slot, and 31: reset boss, 32: preceding slide-bar, 33: blind hole, 34: rear slide-bar, 35: sliding electromagnet, 36: dynamic iron core, 37: Hinged shaft, 38: bayonet lock, 39: bayonet lock end plate, 40: sideslip hole, 41: slide bar, 42: slide bar end plate, 43: hinge hole, 44: horizontal push plate, 45: card hole, 46: secondary push plate, 47: swing rod, 48: reset tension spring, 49: resetting push spring.

Embodiment 1:

As shown in Figure 1, 2, the fixed solenoid actuated clutch intelligent anti-theft lock of lock cylinder for safety box of the invention, including lock body 1, Lock core group 14 and sliding electromagnet 35, wherein the outside of lock body 1 is anti-skid plate 2, and the inside of lock body 1 is backboard 8, the position of lock body Part between anti-skid plate 2 and backboard 8 is coaming plate 10, and coaming plate 10 is equipped with mounting ear 11, and lock body 1 passes through on mounting ear 11 Fixing assembling on the inside of the door leaf of through-hole, bolt or screw and safety cabinet.

As shown in Figure 20~23, lock core group 14 by lock core 15, interior swivel becket 16, outer swivel becket 17, pellet group, ring 18, Lock post 21, reset post 22 and tension spring connecting column 23 are constituted, and the lockhole of lock core 15 is cross, the inboard end of lock core 15 it is flat 3 activity of shallow bore hole of slotted hole fixing assembling on axis and backboard 8,2 inside of the outboard end of lock core 15 and anti-skid plate is assembled, interior rotation Ring 16 and 15 periphery activity of lock core are assembled, and outer swivel becket 17 is assembled with interior 16 periphery activity of swivel becket, lock core, interior swivel becket And 24 marble holes are provided on outer swivel becket, built with 24 groups of pellets, every group of pellet include 4 steel balls, 1 it is cylindrical Long marble and 1 spring, the length of each long marble are equal to the thickness of interior swivel becket 16, while 2 times of also equal to diameter of the steel ball, 3 steel balls are respectively arranged in each marble hole of lock core 15, and outmost steel ball is flushed with lock core 15 periphery height, is turned inside In 24 groups of marble holes of rotating ring 16 and outer swivel becket 17, the suitable of pellet and spring is wherein packed into several marble holes from inside to outside Sequence are as follows: 1 steel ball, 1 long marble and 1 spring have several long marbles to be across interior swivel becket 16 and outer swivel becket 17 Between, the sequence of pellet and spring is packed into remaining each marble hole of interior swivel becket 16 and outer swivel becket 17 from inside to outside are as follows: 1 Long marble, 1 steel ball and 1 spring, i.e. long marble are only in the marble hole of interior swivel becket 16, and key is cross, key Tartar is made of the edge shape of corresponding 24 positions, and each position is respectively wave crest or trough, and the height of each wave crest is homogeneous Together, the depth of each trough is also all the same, and the difference in height of peaks and troughs is equal to diameter of the steel ball, and long marble is across interior swivel becket The corresponding wave crest of pellet group between 16 and outer swivel becket 17, the pellet group that long marble is located in interior swivel becket 16 correspond to trough.

As shown in Figure 23~26, the inboard end of interior swivel becket 16 is equipped with 18 fixing assembling of ring of jag 19 with 1, The inboard end of outer swivel becket 17 is equipped with 1 gap, and the jag 19 of ring 18 is located in the gap, and the jag 19 of ring exists Vertical direction is additionally provided with limited post 20, which is inserted into 1 slotted hole on backboard 8, and activity can transport wherein Row certain distance is fixed with lock post 21, reset post 22 and tension spring connecting column 23 on outer swivel becket 17, wherein tension spring connection Column 23 is flexibly connected with one end of reset tension spring 48, and the other end of reset tension spring 48 is flexibly connected with lock body 1.

As shown in Figure 17,18,19, the center position of the corresponding shallow bore hole 3 of anti-skid plate 2 is equipped with cross bore, anti-skid plate 2 it is outer Side is equipped with annular groove 4 centered on cross bore, and assembles with the outer rim of shield 6, activity dress between shield 6 and anti-skid plate 2 With 1 anti-drilling sheet 7.

As shown in figure 3, the locking bolt driving transmission device of safety cabinet where lockset includes that wheel handle and wheel handle rotate synchronously Swing rod 47, horizontal push plate 44 and secondary push plate 46 etc., wherein secondary push plate 46 is connect with locking bolt, synchronizing moving, fix 1 on horizontal push plate Pin shaft, and activity is inserted into 1 slotted hole of secondary push plate, coasting distance of the pin shaft in this slotted hole is squeegee hopover, is put down When push plate 44 moves back and forth, secondary push plate 46 can lag movement, and the length run less is equal to squeegee hopover, positive and negative two directions rotation When runner handle, wheel handle drives the horizontal push plate 44 in door leaf mobile back and forth horizontally, and horizontal push plate 44 drives secondary push plate 46 and lock again Bolt moves back and forth, and when horizontal push plate 44 cannot move horizontally and when strength twist wheel handle, the overload protection arrangement for taking turns handle makes Take turns handle idle running.

As shown in Figure 1,1 sliding electromagnet 35 of fixing assembling, the sliding electromagnet on the backboard 8 on the right side of lock core group 14 35 include shell, coil, fixed core, the dynamic iron core 36 for resetting push spring 49 and cylinder, and moving iron core 36 can vertically reciprocating movement.

As shown in Figure 1, lock body 1 is interior, the lower section of lock core group 14 is additionally provided with latch 24.

As shown in Fig. 8~11, whole latch 24 is in rectangular shape, and the right end of latch 24 is equipped with the logical of vertical direction Hole i.e. hang down slide opening 25, hang down slide opening left side and lock core 15 axial line it is equidirectional be equipped with 1 through-hole, mounted inside 1 is advancing slip Axis 32, which is the short axle of step axis shape, and extend out to the outside of latch 24, outside short axle and anti- The activity assembly of groove, that is, external slideway 5 of the corresponding horizontal direction in the inside of skid plate 2, and can in the external slideway 5 sliding horizontal, it is preceding The 9 activity assembly of slotted hole, that is, inner slide of the inside short axle of slide-bar 32 horizontal direction corresponding with backboard 8, and can be in the interior cunning Sliding horizontal in road 9, the outside of 24 left end of latch, inside and with the axial line of lock core 15 is equidirectional is respectively equipped with 1 blind hole 33, two blind holes, 33 coaxial inner conductor, slide-bar 34 after internal each assembly 1, slide-bar 34 is step axis shape after two, on the outside of The outside short axle of slide-bar 34 extend out to the outside of latch 24 afterwards, and another external slideway 5 corresponding with the inside of anti-skid plate 2 is living Dynamic assembly, and sliding horizontal, the inboard short axle of the rear slide-bar 34 of 24 inside of latch locking can be also extend out in the external slideway 5 The outside of block 24, and 9 activity assembly of another inner slide corresponding with backboard 8, and can in the inner slide 9 sliding horizontal, I.e. latch 24 can move back and forth horizontally, and it is sliding that the upper surface corresponding position at 24 middle part of latch is equipped with 1 sliding slot, that is, lock post Slot 28, width is greater than the diameter of lock post 21, and lock post 21 is inserted into the lock post sliding slot 28, lock post sliding slot 28 left end face is second boss 29, and the right end top of lock post sliding slot 28 extends to the inboard end of latch 24 to inboard Face, and 1 gap is formed, which is main sliding slot 26, and the depth and length of main sliding slot 26 are respectively smaller than lock post sliding slot 28 Depth and length, the right end face of main sliding slot 26 flushes with the right end face of lock post sliding slot 28, and the width of main sliding slot 26 is not Jag 19 less than the thickness of the jag 19 of ring 18, and ring 18 is inserted into main sliding slot 26, main sliding slot 26 Left end face is first boss 27, and first boss 27 is additionally provided with 1 in the right side of second boss 29, the left upper portion of latch 24 The groove of certain depth, which resets, pushes away slot 30, and width is greater than the diameter of reset post 22, and reset post 22 is inserted into resetting It pushes away in slot 30, reset pushes away the right end face of slot 30 to reset boss 31.

As shown in Figure 1,3, the internal activity of vertical slide opening 25 assembles 1 bayonet lock 38, and the top corresponding position of horizontal push plate 44 is set There is 1 through-hole i.e. card hole 45, the lower part of coaming plate 10 is correspondingly provided with slotted hole i.e. glide path 12, and under static, the lower end of bayonet lock 38 is worn It crosses also activity after glide path 12 to be inserted into card hole 45, when bayonet lock 38 and mobile 24 synchronous reciprocating of latch, bayonet lock 38 is gliding It is slided in road 12.

As shown in Figure 14,15, the top of bayonet lock 38 is flat bayonet lock end plate 39, and the center of bayonet lock end plate 39 is equipped with logical Hole, that is, sideslip hole 40, the lower end for moving iron core 36 are equipped with opening, are equipped with hinged shaft 37 with opening vertical direction.

As shown in Fig. 1,12,13,1 slide bar 41 is additionally provided in lock body 1, the left end of slide bar 41 is flat slide bar end plate 42, the center of slide bar end plate 42 is equipped with through-hole, that is, hinge hole 43, and 42 activity of slide bar end plate is inserted into the opening of dynamic 36 lower end of iron core, And assembled with 37 activity of hinged shaft, slide bar 41 can swing certain angle along hinged shaft 37, and the right side corresponding position of coaming plate 10 is equipped with 1 Through-hole, that is, slide bar jack 13(is shown in Figure 16), after 41 activity of slide bar passes through the sideslip hole 40 of bayonet lock end plate 39, the right end of slide bar 41 is also In activity insertion slide bar jack 13, and certain gap is kept with slide bar jack 13.

Working principle and unlocking, locking process:

1. when using key opening safety cabinet door fan, as illustrated in figures 3-6 (from the inboard perspective side outward of safety cabinet To), it is first inserted into key, the positive direction rotating wheel handle since static, the axis for taking turns handle drives swing rod 47 to swing, and swing rod 47 pushes away again Dynamic horizontal push plate 44 is moved to the left, and the card hole 45 on horizontal push plate 44 pushes bayonet lock 38 and latch 24 to be moved to the left, first boss 27 It is contacted first with the jag 19 of ring 18, and ring 18, interior swivel becket 16 is pushed to rotate clockwise, the jag 19 of ring 18 By pushing the top edge of the gap of outer swivel becket 17 that outer swivel becket 17 is made to follow synchronous rotation, so make interior swivel becket 16, Outer swivel becket 17, which synchronizes, rotates clockwise certain angle, when ring 18 jag 19 latch 24 upper surface skid after, The upper right end in contact of the slotted hole on limited post 20 and backboard 8 on jag 19, and ring 18 and interior swivel becket 16 can be prevented It continuing to rotate, second boss 29 contacts with lock post 21 and outer swivel becket 17 is pushed to rotate later, if key is correct, second boss 29 can push outer swivel becket 17 to continue individually to rotate, and latch 24, horizontal push plate 44 and secondary push plate 46 can also continue to run to the left, directly To lock post 21 also latch 24 upper surface skid after, latch 24 and horizontal push plate 44 etc. can also continue to be run to the left to end Point and opened door leaf, in the process, bayonet lock end plate 39 is slided on slide bar 41 to left side terminal.

When key is incorrect or without key, outer swivel becket 17 cannot continue individually to rotate, then latch 24 and horizontal push plate 44, secondary push plate 46 cannot continue to run to the left to terminal, and door leaf cannot be opened, if strength twist wheel handle, take turns handle sky Turn, door leaf cannot still be opened.

When locking operation, reversely rotate wheel handle, wheel handle drive horizontal push plate 44, secondary push plate 46 and locking bolt move right to Terminal, at the same latch 24 also move right to terminal, bayonet lock end plate 39 slided on slide bar 41 to the static position on right side, this When outer swivel becket 17, interior swivel becket 16 successively automatically reset under the action of reset tension spring 48, if outer swivel becket in the process 17, interior swivel becket 16 fails to automatically reset, then when latch 24 moves right, and when second boss 29 crosses lock post 21 Behind skidding position, resetting boss 31 can contact with reset post 22 and outer swivel becket 17 is pushed to reset rotation counterclockwise, the process Later period, the gap of outer swivel becket 17 also push the jag 19 of ring 18 that interior swivel becket 16 is made also to reset rotation, then interior swivel becket 16, outer swivel becket 17 resets to terminal.

2. when being unlocked using fingerprint recognition or password input mode, as shown in Fig. 3,7 (outward from the inboard of safety cabinet Perspective direction), if fingerprint or password are correct, dynamic iron core 36 moves up and the right end of slide bar 41 is pulled to move up, into And bayonet lock 38 moves up, the lower end of bayonet lock 38 is extracted out from the card hole 45 of horizontal push plate 44, then horizontal push plate 44 can be moved to the left, safety cabinet Door leaf can be opened.

When locking again after fingerprint or password unlocking, reversely rotate wheel handle, wheel handle drive horizontal push plate 44 and locking bolt to It moves right to terminal, moves the downward reset movement in the case where resetting push spring 49 and self gravitation effect of iron core 36, while pushing bayonet lock 38 Also it moves down and reinserts in the card hole 45 of horizontal push plate 44.

If fingerprint or password bad, dynamic iron core 36, bayonet lock 38 are stationary, if rotating wheel handle at this time, flat-pushing Plate 44 pushes bayonet lock 38 and latch 24 to be moved to the left, when the jag 19 of ring 18 is after the upper surface of latch 24 is skidded, Outer swivel becket 17 cannot continue individually to rotate, and latch 24 can not continue to be moved to the left, and safety cabinet cannot be opened.

Embodiment 2:

As shown in figure 31, present embodiment and the difference of embodiment 1 is: sliding electromagnet 35 is directly fixedly mounted on latch On 24, slide bar 41, the opening of bayonet lock 38 and dynamic iron core 36 and hinged shaft 37 are eliminated, i.e., is directly replaced by the lower end for moving iron core 36 Bayonet lock 38, principle are identical as embodiment 1.But when due to being unlocked using standby key, 35 moving distance of sliding electromagnet etc. In the sum of secondary 46 moving distance of push plate and squeegee hopover, it is also equal to the sum of locking bolt moving distance and squeegee hopover, therefore, push-and-pull electricity Connecting line between magnet 35 and circuit board should retain enough length and have preferable soft and moist property.In view of standby key is opened Frequency locking time is very low, so will not influence the service life of a whole set of lockset.

Claims (1)

1. a kind of fixed solenoid actuated clutch intelligent anti-theft lock of lock cylinder for safety box, including lock body, lock core group and push-and-pull electricity Magnet, wherein the outside of lock body is anti-skid plate, and the inside of lock body is backboard, the portion between anti-skid plate and backboard of lock body It is divided into coaming plate, coaming plate is equipped with mounting ear, and lock body passes through the door leaf inside of through-hole, bolt or screw and safety cabinet on mounting ear Fixing assembling, lock core group are connected by lock core, interior swivel becket, outer swivel becket, pellet group, ring, lock post, reset post and tension spring Column is constituted, and the lockhole of lock core is cross, the flat axis at the inboard end of lock core and the slotted hole fixing assembling on backboard, lock core it is outer Shallow bore hole activity on the inside of side and anti-skid plate is assembled, and interior swivel becket and the activity of lock core periphery are assembled, outer swivel becket and interior rotation Ring periphery activity assembly, is provided with 24 marble holes on lock core, interior swivel becket and outer swivel becket, built with 24 groups of pellets, Every group of pellet includes that 4 steel balls, 1 cylindrical long marble and 1 spring, the length of each long marble are equal to interior swivel becket Thickness, while 2 times of also equal to diameter of the steel ball, are respectively arranged with 3 steel balls in each marble hole of lock core, and outmost steel ball with Lock core periphery height flushes, in 24 groups of marble holes of interior swivel becket and outer swivel becket, wherein by interior in several marble holes To the sequence of outer loading pellet and spring are as follows: 1 steel ball, 1 long marble and 1 spring have several long marbles to be across Between interior swivel becket and outer swivel becket, it is packed into pellet and bullet from inside to outside in each marble hole of remaining of interior swivel becket and outer swivel becket The sequence of spring are as follows: 1 long marble, 1 steel ball and 1 spring, i.e. long marble only in the marble hole of interior swivel becket, key ten The tartar of font, key is made of the edge shape of corresponding 24 positions, and each position is respectively wave crest or trough, each wave crest Height it is all the same, the depth of each trough is also all the same, and the difference in height of peaks and troughs is equal to diameter of the steel ball, long marble across The corresponding wave crest of pellet group between interior swivel becket and outer swivel becket, the pellet group that long marble is located in interior swivel becket correspond to wave Paddy, the inboard end of interior swivel becket are equipped with the ring fixing assembling of jag with 1, and the inboard end of outer swivel becket is equipped with 1 The jag of gap, ring is located in the gap, and the jag of ring is additionally provided with limited post in vertical direction, limited post insertion Into the slotted hole of backboard, and can the certain distance of activity operation wherein, be fixed on outer swivel becket lock post, reset post and Tension spring connecting column, wherein tension spring connecting column is flexibly connected with one end of reset tension spring, the other end and the lock body activity of reset tension spring Connection, the center position that anti-skid plate corresponds to shallow bore hole are equipped with cross bore, and the outside of anti-skid plate is equipped with ring centered on cross bore Shape slot, and assembled with the outer rim of shield, 1 anti-drilling sheet of activity assembly between shield and anti-skid plate, after lockset installation, pick-proof Plate and safety cabinet door leaf steel plate interior side contacts, shield, anti-drilling sheet end face outside pass through the through-hole and and door leaf of door leaf steel plate It is flushed on the outside of steel plate, the locking bolt driving transmission device of safety cabinet where lockset includes that wheel handle and wheel handle rotate synchronously Swing rod, horizontal push plate and secondary push plate etc. fix 1 pin shaft, and living wherein secondary push plate is connect with locking bolt, synchronizing moving on horizontal push plate In dynamic 1 slotted hole for being inserted into secondary push plate, coasting distance of the pin shaft in this slotted hole is squeegee hopover, and horizontal push plate back and forth moves Secondary push plate is driven to follow reciprocating movement when dynamic, and secondary push plate can lag movement, the length run less is equal to squeegee hopover, When positive and negative two directions rotating wheel handle, wheel handle drives horizontal push plate to move back and forth horizontally, and horizontal push plate drives secondary push plate and each lock again Bolt moves back and forth, for completing locking or the unlatching of safety cabinet door leaf, when horizontal push plate cannot move horizontally and strength twist wheel When handle, the overload protection arrangement for taking turns handle makes to take turns handle idle running, 1 push-and-pull electromagnetism of fixing assembling on the backboard on the right side of lock core group Iron, the sliding electromagnet include shell, coil, fixed core, the dynamic iron core for resetting push spring and cylinder, and moving iron core can be vertically reciprocating It is mobile, intelligent identification device is additionally provided with where lockset on safety cabinet, intelligent recognition mode is fingerprint recognition, password comparison knowledge Not, recognition of face or other information identification method one or more of mode, when information identification is correct, intelligence is known Other device can issue the dynamic iron core displacement of signal instruction control sliding electromagnet, it is characterized in that: in lock body, lock core group Lower section is additionally provided with latch, which is integrally in rectangular shape, and the right end of latch is equipped with vertically oriented aperture there-through and hangs down Slide opening, hangs down the left side of slide opening and the axial line of lock core equidirectional is equipped with 1 through-hole, 1 preceding slide-bar of mounted inside, the preceding slide-bar Both ends are the short axle of step axis shape, and extend out to the outside of latch, and outside short axle is corresponding with the inside of anti-skid plate The assembly of the groove of horizontal direction, that is, external slideway activity, and can in the external slideway sliding horizontal, the inside short axle and back of preceding slide-bar The assembly of the slotted hole of the corresponding horizontal direction of plate, that is, inner slide activity, and can in the inner slide sliding horizontal, latch it is left The outside at end, inside and with the axial line of lock core is equidirectional is respectively equipped with 1 blind hole, two blind hole coaxial inner conductors, internal each dress With slide-bar after 1, slide-bar is step axis shape after two, on the outside of the outside short axle of rear slide-bar extend out to the outer of latch Side, and another external slideway activity corresponding with the inside of anti-skid plate assemble, and can in the external slideway sliding horizontal, latch The inboard short axle of the rear slide-bar of inside also extend out to the outside of latch, and another inner slide activity corresponding with backboard fills Match, and sliding horizontal, i.e. latch can be moved back and forth horizontally in the inner slide, the upper surface in the middle part of latch corresponds to position 1 sliding slot i.e. lock post sliding slot is installed, width is greater than the diameter of lock post, and lock post is inserted into the lock post and slides In slot, the left end face of lock post sliding slot is second boss, and the right end top of lock post sliding slot extends in latch to inboard Side end face, and 1 gap is formed, which is main sliding slot, and the depth and length of main sliding slot are respectively smaller than lock post sliding slot The right end face of depth and length, main sliding slot is flushed with the right end face of lock post sliding slot, and the width of main sliding slot is not less than ring Jag thickness, and the jag of ring is inserted into main sliding slot, and the left end face of main sliding slot is first boss, the For one boss on the right side of second boss, the groove that the left upper portion of latch is additionally provided with 1 certain depth, which resets, pushes away slot, wide Degree is greater than the diameter of reset post, and reset post is inserted into resetting and push away in slot, and the right end end face that reset pushes away slot is to reset boss, The internal activity of vertical slide opening assembles 1 bayonet lock, and the top corresponding position of horizontal push plate is equipped with 1 through-hole, that is, card hole, coaming plate lower part pair It should be equipped with slotted hole, that is, glide path, under static, the lower end of bayonet lock is gone back in activity insertion card hole after passing through glide path, when bayonet lock and lock When stops synchronous reciprocating is mobile, bayonet lock slides in glide path, and the top of bayonet lock is flat bayonet lock end plate, bayonet lock end plate Center is equipped with through-hole, that is, sideslip hole, and the lower end for moving iron core is equipped with opening, is equipped with hinged shaft with opening vertical direction, is additionally provided in lock body 1 slide bar, the left end of the slide bar are flat slide bar end plate, and the center of slide bar end plate is equipped with through-hole, that is, hinge hole, slide bar end Plate activity is inserted into the opening of dynamic iron core lower end, and is assembled with hinged shaft activity, i.e., slide bar can be put on the hinged shaft of dynamic iron core lower end Dynamic certain angle, the right side corresponding position of coaming plate are equipped with 1 through-hole, that is, slide bar jack, and slide bar activity passes through the sideslip of bayonet lock end plate Kong Hou, the also activity of the right end of slide bar is inserted into slide bar jack, and keeps certain gap with slide bar jack, is opened when using key When opening safety cabinet door leaf, it is first inserted into key, positive direction is rotated clockwise wheel handle since static, takes turns the axis band of handle Movable pendulum bar is swung, and swing rod pushes horizontal push plate to move right again, and the card hole on horizontal push plate pushes bayonet lock and latch to move right, the One boss with the protrusion end in contact of ring, and pushes ring, interior swivel becket to rotate counterclockwise first, and the jag of ring is by pushing away The top edge of the gap of dynamic outer swivel becket makes outer swivel becket follow synchronous rotation, and then keeps interior swivel becket, outer swivel becket synchronous Certain angle is rotated counterclockwise, when limit of the jag of ring when the upper surface of latch is skidded, on the jag of ring The upper right end in contact of slotted hole on column and backboard, and ring and interior swivel becket can be prevented to continue to rotate, at this time bayonet lock and locking The distance that block moves right is squeegee hopover, and second boss contacts with lock post and outer swivel becket is pushed to rotate later, if key Correctly, second boss can push outer swivel becket to continue individually rotation, and latch, horizontal push plate and secondary push plate can also continue to transport to the right Row, until lock post is also after the upper surface of latch is skidded, latch, horizontal push plate and secondary push plate can also continue to run to the right to Terminal and opened door leaf, in above process, bayonet lock end plate is slided on slide bar to right side terminal, when key is incorrect or without key When spoon, outer swivel becket cannot continue individually to rotate, then latch, horizontal push plate and secondary push plate cannot continue to run to the right to end Point, door leaf cannot be opened, if strength twist wheel handle, take turns handle idle running, when locking operates, reversely rotate wheel handle, take turns handle Hand-motion horizontal push plate and locking bolt are moved to the left to terminal, at the same latch be also moved to the left to terminal, bayonet lock end plate is on slide bar It sliding to the static position in left side, outer swivel becket, interior swivel becket successively automatically reset under the action of reset tension spring at this time, if Outer swivel becket, interior swivel becket fail to automatically reset during this, then when latch is moved to the left, and when second boss crosses lock Only behind the skidding position of column, resetting boss can contact with reset post and outer swivel becket is pushed to reset rotation clockwise, the process Later period, the gap of outer swivel becket also push the jag of ring that interior swivel becket is made also to reset rotation, then interior swivel becket, outer swivel becket It resets to terminal, when being unlocked using intelligent recognition mode, if information identification is correct, dynamic iron core moves up and pulls cunning The left end of bar moves up, and then bayonet lock moves up, and the lower end of bayonet lock is extracted out from the card hole of horizontal push plate, then horizontal push plate can move right Dynamic, safety cabinet door leaf can be opened, and when locking again after fingerprint or password unlocking, reversely rotate wheel handle, wheel handle drives flat-pushing Plate and locking bolt are moved to the left to terminal, are moved iron core downward reset movement in the case where resetting push spring and self gravitation effect, are pushed simultaneously Bayonet lock is also moved down and is reinserted in the card hole of horizontal push plate, if information identification it is incorrect, move iron core, bayonet lock it is static not Dynamic, if being rotated clockwise wheel handle at this time, horizontal push plate pushes bayonet lock and latch to move right, when the jag of ring exists After the upper surface of latch is skidded, outer swivel becket cannot continue individually to rotate, and latch can not continue to move right, safety cabinet It cannot open.