CN207211975U - A kind of theftproof lock - Google Patents

Abstract

The utility model discloses a kind of theftproof lock, lock core including lock body and in the lock body, the key slot for key insertion is provided with described lock core, described key slot includes straight trough and at least one skewed slot, described skewed slot is communicated with straight trough and is obliquely installed relative to straight trough, the first locking member and the second locking member are each configured with described skewed slot and straight trough, can described the first locking member and the second locking member is used to restriction lock core rotate relative to lock body, have and lock and unlock two states.Key slot has the characteristic of deflecting in the utility model, during unlocking, key is after straight trough is inserted, need first to unlock the second locking member at straight trough, then again deflecting enter in skewed slot and unlock the first locking member at skewed slot could so that lock core is integrally unlocked, for technology unlocking instrument, in key slot deflecting be difficult just, moreover change also needs to unlock backward the first locking member at skewed slot again, is practically impossible to.

Description

A kind of theftproof lock

Technical field

It the utility model is related to mechanical lock field, more particularly to the lock that a kind of theftproof performance is very prominent.

Background technology

At present, state's internal cylinder in the market, the lock of tri- kinds of ranks of A, B, C is included.A levels lock generally comprise a traditional letter lock, There was only the lock of row's pinball structure in cross lock, crescent lock and most of lock core, its anti-theft is poor, and mutual opening rate is high, technology The time is opened typically at several seconds to two minutes or so, in the numerous burglaries occurred at home, the stolen door of majority uses All it is A levels lock.B levels lock has double-row marble groove, and locking different places with A levels has been more than key face that a row is having many bends or curves irregular Groove, lock core main Types are 3 kinds, the double lock core of computer, double crescent moon lock core and two-sided blade lock core, anti-technical to open Time, mutual opening rate was high, and by turning round instrument by force, lock core can be opened in 1 minute in 5 minutes.It is safer in the market It is C levels lock, it uses double, computer, composite curve groove key, is opened without law technology within 270 minutes, but C levels are locked in financial industry It is civilian less using more.The uncaging time of three kinds of ranks is different, and the time is longer, and safety coefficient is higher, and stolen can Energy property is lower.

But present A levels, B levels, C levels lock, its key groove track is all straight-through, so instrument holds enters key slot very much In, then thief stirs hoodle or locking plate with skill again.In straight-through track, for experienced thief, instrument is used All it is openable, simply the problem of uncaging time length.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of theftproof lock, and it has the key groove track of deflecting, Instrument deflecting can not be deep into the innermost end of key slot in groove, so as to prevent so-called technology unlocking, greatly improve lockset Theftproof performance.

Technical scheme is used by the utility model solves its technical problem：A kind of theftproof lock, including lock body and be located at Lock core in the lock body, is provided with the key slot for key insertion in described lock core, and described key slot includes straight trough and extremely A few skewed slot, described skewed slot are communicated with straight trough and are obliquely installed relative to straight trough, are distinguished at described skewed slot and straight trough The first locking member and the second locking member are configured with, the first described locking member and the second locking member are used to limit Can lock core rotate relative to lock body, have and lock and unlock two states.

Thus, lock pin only could be solved when the first locking member and the second locking member are all located at released state, locked Core could rotate relative to lock body.

The beneficial effect of above-mentioned theftproof lock is：At present, the key slot of market upper lock core is all straight trough, and technology unlocking instrument is It can enter and stir unblock, simply the problem of unlocked time length；And in the utility model, the key slot of lock core be then by What straight trough and skewed slot were formed, that is to say, that the key slot has a characteristic of deflecting, during unlocking, key after straight trough is inserted, it is necessary to The second locking member at straight trough is first unlocked, then deflecting enters in skewed slot and unlocks the first locking member at skewed slot just again It can make it that lock core is integrally unlocked, and for current technology unlocking tool, realize deflecting just very in key slot Difficulty, also become and also need to go to unlock the first locking member at skewed slot again backward（On condition that the first locking member is unlocked）, it is several It is impossible, therefore theftproof lock of the present utility model has extremely strong theftproof performance.

Further, described lock core includes lock core shell, guider and hoodle component；

Described lock core shell includes leading portion and back segment, and described straight trough is located in leading portion lock core shell, described back segment lock core Shell has inclined-plane A；

Described guider has inclined-plane B, and inclined-plane B coordinates described inclined-plane A to set, and institute is formed between two inclined-planes The skewed slot stated；

The first described locking member is hoodle component, and the corresponding described skewed slot of the hoodle component is arranged on back segment lock core shell In lock body, can it be used to limiting lock core shell and be rotated relative to lock body, has and locks and two states of unblock；

For described skewed slot after the key that insertion is adapted, the inclined-plane B of guider can hold out against the one side of key, make key The another side of spoon promotes hoodle component, is at described released state.

Above-mentioned further in scheme, the leading portion and back segment of lock core shell are also the sequencing using key insertion as reference. It should be noted, it is that similarly, inclined-plane B is not also limited positioned at back segment lock core shell inside or outer surface that described inclined-plane A, which is not limited, It is fixed, as long as forming described skewed slot between the two；Described hoodle component is current cylinder lock with balls（Or spring lock）Chang Cai Component, including hoodle and spring.

The principle of the further scheme is：After the key being adapted to this theftproof lock first passes through straight trough, turn again to enter skewed slot, In skewed slot, the described hoodle component of key unblock, released state is at, so as to reach the purpose of unblock.Every group of hoodle Component can have a variety of arrangements, and different arrangements corresponds to a kind of arrangement of key eyelet, so as to key and bullet Pearl component corresponds, and only arrangement is corresponding to unlock.

Further, described guider is configured with elastic parts, and the elastic restoring force of the elastic parts drives guiding Device is held out against to inclined-plane A sides elasticity.

In the further scheme, because guider is that elasticity holds out against inclined-plane A, therefore when key inserts skewed slot, lead To device meeting retraction, skewed slot is opened, is easy to the insertion of key, guider and can holds out against key after insertion, drives key top Tight hoodle component, if now the arrangement of the eyelet of key and hoodle component matches, hoodle component will be in unblock State.

Further, described lock core also includes the sealing termination for being arranged on the guider back side, described elastic parts Including connecting screw and spring, described connecting screw is sequentially passed through on the first axially extending bore and guider on sealing termination The second axially extending bore after be fixed in back segment lock core shell upper screwed hole, the aperture of second axially extending bore is more than connecting screw External diameter, described spring overcoat holds out against guider, other end top tight sealing end in connecting screw and in compressive state one end Head.

Because the aperture of the second axially extending bore on guider is more than the external diameter of connecting screw, thus, guider energy Along the axial movement of connecting screw, so as to which when key inserts skewed slot, key can promote guider elasticity retraction, oblique to increase Groove reduces resistance during key insertion, and spring and can promotes guider elasticity to hold out against key after insertion, can hold out against simultaneously Unlock hoodle component.In addition, it should be noted that, the back side of above-mentioned alleged guider be the side using key insertion as reference, Side away from key insertion is the back side；In above-mentioned, the axial direction of the first axially extending bore and the second axially extending bore refers to and straight trough The direction of diameter parallel.

Further, in addition to it is used for spacing connection sheet, the end face of the sealing termination and the end face face of lock core shell connect Touch, one end of the connection sheet is fixed on sealing termination, and the other end is buckled on the boss structure of lock body outer wall, for limiting lock The axial movement of core.

Thus, because the end face for sealing termination with the end face of lock core shell is that face contact, seal termination and be directed to device again In being sealed in, therefore sealing termination, guider and lock core shell can be drawn over to one's side and are buckled on the boss structure of lock body by connection sheet, be led to The axial movement of boss structure limitation lock core is crossed, but should be noted, the boss structure does not limit lock core and turned relative to lock body It is dynamic.

Further, the second described locking member is locking plate, coordinates the locking plate to be provided with described straight trough radially Locking plate groove, described locking plate is slidably arranged in the locking plate groove.Described locking plate groove and locking plate be current blade lock frequently with Part, the utility model is designed into straight trough, and the difficulty of straight trough is unlocked with increase, improves the theftproof performance of lockset；Should Locking plate can be linked with the groove being adapted on the key, and when not inserting key, locking plate is in the lock state so that lock core can not phase Rotated for lock body, when the key that insertion is adapted, groove can drive locking plate mobile and be ultimately at released state, so that Lock core shell can rotate relative to lock body.It should be noted, above-mentioned alleged radial direction refers to the direction with straight trough axis perpendicular.

Further, the quantity of the skewed slot is two or four, and is symmetric.Certainly, the quantity of skewed slot Can be one, three or more, two or four simply two kinds of preferred schemes therein.

It is above-mentioned further in scheme, the quantity more than one of skewed slot, further increase the difficulty of technology unlocking.At present, There is no any instrument to realize deflecting in the track of key slot, if occurring reversible instrument in the future, thief also is difficult to oblique Hoodle firmly is stirred in groove, moreover when skewed slot more than one, it is also necessary to while stir the hoodle ability unlocked in multiple skewed slots For solution lock pin, this split lock tool or thief, it is practically impossible to what is completed.

Further, described skewed slot in the middle part of straight trough with communicating.

The utility model additionally provides another theftproof lock, including lock body and the lock core in the lock body, described lock In-core is provided with the key slot for key insertion, and described key slot includes straight trough and at least one skewed slot（25）, described is oblique Groove is communicated with straight trough and is obliquely installed relative to straight trough, is configured with the first locking member at described skewed slot, and described first Can locking member rotate for limiting lock core relative to lock body, have and lock and unlock two states.

Above-mentioned theftproof lock is provided with the first locking member at skewed slot, and it is difficult to become in key slot that technology unlocking instrument, which is, Back into skewed slot and the first locking member is unlocked, therefore theftproof lock of the present utility model has high theftproof performance.

Further, described lock core includes lock core shell, guider and hoodle component；

Described lock core shell includes leading portion and back segment, and described straight trough is located in leading portion lock core shell, described back segment lock core Shell has inclined-plane A；

Described guider has inclined-plane B, and inclined-plane B coordinates described inclined-plane A to set, and institute is formed between two inclined-planes The skewed slot stated；

The first described locking member is hoodle component, and the corresponding described skewed slot of the hoodle component is arranged on back segment lock core shell In lock body, can it be used to limiting lock core shell and be rotated relative to lock body, has and locks and two states of unblock；

For described skewed slot after the key that insertion is adapted, the inclined-plane B of guider can hold out against the one side of key, make key The another side of spoon promotes hoodle component, is at described released state.

Brief description of the drawings

Fig. 1 is the explosive view of the theftproof lock of embodiment 1（Connection sheet not shown in the figure）；

Fig. 2 is the enlarged drawing of lock core shell and locking plate component in Fig. 1；

Fig. 3 is the structural representation of the theftproof lock of embodiment 1；

Fig. 4 is Fig. 3 A-A to section view；

Fig. 5 is the structural representation of the locking plate of embodiment 1；

Fig. 6 is the structural representation of the key of embodiment 1, and wherein key piece is in closed configuration（The figure only shows two keys Key piece）；

Fig. 7 is the structural representation of the key of embodiment 1, wherein the open-shaped state of key piece（The figure only shows two keys Key piece）；

Fig. 8 is the shape assumption diagram of the key of embodiment 1；

Fig. 9 is Fig. 8 B direction views；

Figure 10 is Fig. 8 C direction views；

Schematic diagram when Figure 11 is the key unblock theftproof lock of embodiment 1；

Figure 12 is the schematic diagram when theftproof lock of embodiment 1 is in the lock state；

Figure 13 is the shape assumption diagram of the lock core shell of theftproof lock and guider in embodiment 2；

Figure 14 is the shape assumption diagram of key in embodiment 2；

Figure 15 is the upward view of guider in embodiment 2；

In figure mark for：1- lock bodies, 2- lock cores, 11- boss structures, 12- locking plate accommodating chambers, 13- ball races B, 21- lock core Shell, 22- guiders, 23- hoodle components, 24- straight troughs, 25- skewed slots, 26- elastic parts, 27- sealings termination, 28- connection sheets, 29- locking plates, 30- locking plate springs, 211- leading portion lock core shells, 212- back segment lock core shells, the axially extending bore of 221- inclined-planes B, 222- second, 223- short slots, the upper hoodles of 231-, 232- lower pellets, 233- hoodle springs, 261- connecting screws, 262- springs, 271- first axles To through hole, 291- is raised, 2111- locking plate grooves, 2112- locking plate spring grooves, 2121- inclined-planes A, 2122- screwed hole, 2123- hoodles Groove A；3- handles, 4- key bodies, 5- returning devices, the main part of 41- key bodies, the key piece of 42- key bodies, 51- returns Bar, 52- return springs, 53- resetting pistons, 54- returns termination, 411- grooves, 421- eyelets, the straight grooves of 422-, 423- drainages Chamfering, the height of H1- locking plate accommodating chambers, the height of H2- locking plates.

Embodiment

The utility model is described in further detail with reference to specific embodiment, but embodiment party of the present utility model Formula not limited to this.

Theftproof lock of the present utility model, including lock body 1 and the lock core 2 that is arranged in the lock body 1, described lock core 2 are relative Have in lock body 1 and lock and unlock two states, lock core 2 can rotate relative to lock body when positioned at released state.Set in lock core 2 The key slot for key insertion is equipped with, the key slot includes straight trough 24 and at least one skewed slot 25, described skewed slot 25 and straight trough 24 communicate and are obliquely installed relative to straight trough 24, be each configured with described skewed slot 25 and straight trough 24 first locking member and Can the second locking member, the first described locking member and the second locking member are used to restriction lock core 2 relative to lock body 1 Rotate, have and lock and unlock two states.

The utility model have also been devised cooperation, and this is antitheft with the key used, and the key includes key handle 3 and for solving The key body 4 of lock, the main part 41 of the key body 4 coordinate the straight trough 24 of the theftproof lock to be molded, set in main part 41 It is equipped with the key piece 42 that coordinates the skewed slot 25 of the theftproof lock to be molded and can be inserted into the skewed slot 25.

Embodiment is listed below based on such scheme the utility model:

Embodiment 1：

As Figure 1-Figure 5, the theftproof lock of the present embodiment, described lock core 2 include lock core shell 21, guider 22, bullet Pearl component 23 and sealing termination 27.

Described lock core shell 21 includes leading portion and back segment, and described straight trough 24 is located in leading portion lock core shell 211, the back segment The inside of lock core shell 212 has four inclined-plane A 2121, and as depicted in figs. 1 and 2, four inclined-plane A 2121 are in crossing distribution；

There is the appearance of the guider 22 the inclined-plane B 221 of four protrusions, inclined-plane B 221 to coordinate described inclined-plane A 2121 are set, also in cross distribution.Thus, the skewed slot 25 described in four is formed between four inclined-planes 2121,221, wherein, phase To two skewed slots 25 it is V-shaped；

In the present embodiment, hoodle component 23 is configured at skewed slot 25 and is used as the first locking member, the hoodle component 23 is four Group, four skewed slots 25 are corresponded to respectively and are installed, every group of hoodle component 23 is installed in the Hes of ball race A 2123 of back segment lock core shell 212 In the ball race B 13 of lock body 1, have and lock and unlock two states, lock core shell 21 can not relative lock when in a locked condition Body 1 rotates.Specifically, every group of hoodle component 23 includes five upper 231, five lower pellets 232 of hoodle and five in the present embodiment Hoodle spring 233, the arrangement of the hoodle in every group of hoodle component 23 can have a variety of, i.e., the spacing of each hoodle, position can Any arrangement；The lock-out state of hoodle component has two kinds of situations, and one kind is that (hoodle spring 233 is in nature when being not inserted into key State), lower pellet 232 is stuck between back segment lock core shell 212 and lock body 1, as shown in figure 12, so as to block the rotation of lock core 2, separately A kind of when being that the arrangement of the eyelet of inserted key and hoodle mismatches, key pushes up after hoodle 231 is at after the meeting Between section lock core shell 212 and lock body 1, the rotation of lock core 2 is equally blocked；As shown in figure 11, the released state of hoodle component is, when When the arrangement of the eyelet and hoodle that insert key matches, in the presence of eyelet, after upper hoodle 232 and lower pellet 233 After contracting just respectively in the back segment lock core shell 212 and lock body 1, now the line of demarcation of upper lower pellet and back segment lock core shell 212 and The line of demarcation of lock body 1 is flush, and back segment lock core shell 212 is unlocked, and can just be rotated along the line of demarcation of upper lower pellet.

Described sealing termination 27 is used for the internal part for sealing lock core 2, and it is concave inward structure, is arranged on guider 22 The back side, and the end plane-plane contact of end face and back segment lock core shell 212 makes guider 22 be located in the groove of the concave inward structure. The guider 22 is also configured with elastic parts 26, and elastic parts 26 includes connecting screw 261 and spring 262, described connection After screw 261 sequentially passes through the second axially extending bore 222 on the first axially extending bore 271 and guider 22 on sealing termination 27 It is fixed in the screwed hole 2122 on back segment lock core shell 212, wherein the aperture of the second axially extending bore 222 is slightly larger than connecting screw 261 external diameter, described spring 262 is coated at connecting screw 261 on the step surface of the second axially extending bore 222, and is in Compressive state one end holds out against guider 22, other end top tight sealing termination 27.When key inserts skewed slot 25, key can sinciput Guider 22, guider 22 is set, so that the width of skewed slot 25 is widened, to be easy to key along 261 axial retraction of connecting bolt Into, when the eyelet of key and the arrangement of hoodle match, after key is fully-inserted, the whole alignment keys of upper hoodle 231 The eyelet of spoon, the now meetings of inclined-plane B 221 of guider 22 hold out against the side of key in the presence of the elastic restoring force of spring 262 Face, the eyelet of key another side is set to promote upper hoodle 231 to make hoodle component 23 just at released state.

In addition, the present embodiment configures locking plate 29 at straight trough 24 is used as the second locking member, the present embodiment uses four groups of locks Piece component, each group locking plate component include three locking plates 29 and three locking plate springs 30, and locking plate 29 is frame-shaped construction, and centre, which has, to be supplied The groove of key insertion, two opposite side of groove are provided with the projection 291 for being used for linking with the groove of key, accordingly, in leading portion lock core shell The locking plate groove 2111 moved radially for locking plate 29 is provided with 211, described one end of locking plate spring 30 is arranged on locking plate 29, separately One end is arranged on the locking plate spring groove 2112 on the side of locking plate groove 2111, meanwhile, lock is provided with the lock body 1 of locking plate component corresponding position Piece accommodating chamber 12；When locking plate 29 in the raw when（When being not inserted into key）, locking plate 29 is in locking plate groove 2111 in stagger arrangement point Cloth, from the both sides of locking plate groove 2111, protrusion enters in locking plate accommodating chamber 12 locking plate 29 respectively, the height of the locking plate accommodating chamber 12 H1 is slightly larger than the height H2 of locking plate 29（As shown in Figure 4 and Figure 5）, locking plate 29 can be limited around axle after locking plate 29 enters accommodating chamber Rotation, so as to limit rotation of the lock core shell 21 relative to lock body 1, only when insertion key groove with it is convex on locking plate 29 291 are played when being adapted, ditch key can just drive all locking plates 29 to be moved in locking plate groove 2111 and both sides not evagination, now leading portion Lock core shell 211 could rotate relative to lock body 1.

To enable each part of lock core 2 to be rotated as an entirety relative to lock body 1, it is fixed with and cuts on sealing termination 27 Face is the connection sheet 28 of L-shaped, and connection sheet 28 is buckled on the boss structure 11 of the outer wall of lock body 1 again after fixing, due to sealing termination 27 It is to act against the end plane-plane contact on back segment lock core shell 212 with back segment lock core shell 212, so the connection sheet 28 can be by lock core Each part by boss structure 11 limits its axial movement after being drawn over to one's side as an entirety, but it should be noted that, the connection sheet 28 It is not intended to limit rotation of the lock core 2 relative to lock body 1.

As shown in Fig. 6-Figure 10, the key of the present embodiment, in the above-mentioned theftproof lock locking plate 29 of the surface engagement of main part 41 On projection 291 offer groove 411, when key is inserted in the straight trough 24 of above-mentioned theftproof lock, groove 411 can drive each locking plate 29 are moved in locking plate groove 2111 and not evagination, so as to unlock leading portion lock core shell 211；It is arranged on the key of the end of main part 41 The quantity of piece 42 is four, and the arrangement that the outside of key piece 42 corresponds to above-mentioned hoodle is provided with and can made at the hoodle component 23 In the eyelet 421 of released state.

Specifically, four key pieces 42 are hinged on the end of key body part 41；In the main part 41 of key Returning device 5 is additionally provided with, the returning device is used to make key piece 42 automatically reset（Four key pieces, which are in, draws close state）, return Position device 5 includes return pin 51, return spring 52, resetting piston 53 and return termination 54, and return pin 51 is arranged on main part 41 inside, return termination 54 are fixed at the root on the external end head of return pin 51 and between four key pieces 42, are returned Position piston 53 is then fixed in the inner termination of return pin 51, is enclosed on outside return spring 52 in return pin 51, and one end holds out against return work Plug 53, one end holds out against the end face inside main part 41.Therefore, when key not used time, as shown in fig. 6, in return spring 52 Under effect, return pin 51 is withdrawn, and return termination 54 makes four key pieces 42 be in closed configuration, the key piece 42 after gathering and master Body portion 41 flushes, to store or deposit key；When key inserts skewed slot 25, as seen in figs. 7 and 11, in guiding device In the presence of 22 inclined-plane B221, four key pieces 42, which can open, to be had respectively entered in four skewed slots 25, now the quilt of return termination 54 Key piece 42 is jacked up, and return pin 51 is stretched out, and after key takes out, return pin 51 can be withdrawn again, makes key piece 42 and in gathering State.

On the antitheft lock ＆ key of the present embodiment, it should be noted that, because key piece 42 is to insert straight trough 24 at first, And have locking plate 29 at straight trough 24, there is projection 291 on locking plate 29, therefore to prevent the influence of raised 291 pairs of key pieces 42 insertion, match somebody with somebody The projection 291 on the opposite side of locking plate 29 is closed, offers on two corresponding key pieces 42 and is communicated with the groove 411 of main part 41 Straight groove 422, and the front end of straight groove 422 is provided with drainage chamfering 423, so as to which key piece 42 is when insert straight trough 24, drains The projection 291 of locking plate 29 can be incorporated into straight groove 422 by chamfering 423 first, when then key continues into, raised 291 energy In the groove 411 for moving to main part 41 along straight groove 422, the energy of key piece 42 is ensure that from there through straight groove 422 is designed Do not influenceed by projection 291, smoothly insert straight trough.After projection 291 enters groove 411, it is further continued for inserting key, key piece 42 is just Separated along skewed slot 24, while groove 411 also can drive locking plate 29 to move, final groove 411 unlocks locking plate component, eyelet 421 Hoodle component 23 is unlocked, is respectively completed the unblock of straight trough 24 and skewed slot 25, is unlocked so that lock core shell 21 is overall, then It is rotated further by the handle 3 of key, key piece 42 will drive the rotation together of lock core shell 21 and guider 22, and lock core shell 21 It is connected as a single entity by connecting screw 261 and sealing termination 27, therefore seals termination 27 can also rotate therewith, is finally existed In the presence of connection sheet 28, the part of lock core 2 can rotate as an entirety with the rotation of key, complete the solution of theftproof lock Lock.

It should be noted, the accompanying drawing of the present embodiment does not show that the shifting block of the theftproof lock, and during fabrication, shifting block can be arranged on Seal on termination 27 or at other rational positions, can guarantee that can rotate with lock core 2.

Embodiment 2：

The present embodiment is roughly the same with the technical scheme of embodiment 1, and main distinction point is, the present embodiment theftproof lock skewed slot Quantity be two.

Based on two skewed slots, the present embodiment has made following change to the lock core and key of embodiment 1：

On lock core, it is two, as shown in figure 13, two that the inside of back segment lock core shell 212, which has inclined-plane A 2121 quantity, Individual inclined-plane A 2121 is distributed in in-line；Corresponding, it is two that the appearance of guider 22, which has the inclined-plane B 221 of protrusion quantity, It is individual, also it is distributed in a word；Thus, the skewed slot 25 described in two, and two skewed slots 25 are formed between two inclined-planes 2121,221 It is V-shaped；Certainly, the quantity of hoodle component 23 is also just two groups, corresponds to two skewed slots 25 respectively and sets.

On key, in order to play a part of protecting returning device, the quantity of key piece 42 is still four, four keys Piece 42 can play a part of protecting returning device after collapsing, and profile is also more attractive in appearance；Wherein, for unlocking hoodle component For 23 a pair of key pieces 42 with main part 41 to be articulated and connected, another pair key piece 42 can be then be hinged with main part 41 Connect or be fixedly connected or be integrally formed with main part 41, as shown in figure 14, the present embodiment is exemplified by being integrally formed；When Need also exist for opening up straight groove 422 and drainage chamfering 423, its function on the key piece 42 of the front end of 41 groove of right main part 411 It is same as Example 1.

In above-mentioned, because the quantity of key piece is four, and the quantity of skewed slot is two, therefore after key inserts, is had Two key pieces will not deflecting, so coordinating the two key piece needs to open up hole at the middle part of guider 22 or lack Groove 223, so that the two key pieces extend there through, it is avoided to stop the insertion of key, as shown in figure 15.

It should be noted, the quantity of skewed slot is not limited to four or two, is above-mentioned reality from four or two skewed slots Apply two kinds of preferred schemes that example is enumerated, certainly, skewed slot can also be one, three or more.

In the above two embodiments, the second locking member is using locking plate, but it should be noted that, the second sticking department Part can also use hoodle component or other parts with locking lock core function.Similarly, the first locking member can also use other Part with locking lock core function.In the above two embodiments, skewed slot is connection in straight trough end, certainly, skewed slot Also connection may be selected to will not be repeated here in the middle part of straight trough, concrete structure.

Both examples above, is each configured with locking plate component and hoodle component at straight trough and skewed slot, needs during unlocking same Shi Xiesuo locking plates component and hoodle component can unlock, therefore have extremely strong theftproof performance, and professional unlocking staff is using current Even if instrument unlocked the locking plate of straight trough after, it is also difficult to become the hoodle component for unlocking skewed slot again backward in key groove track, Moreover in the case of with multiple skewed slots, it is also necessary to while the hoodle component in each skewed slot is unlocked, this is to current technology people It can not possibly accomplish for member and instrument.Therefore theftproof lock theftproof performance of the present utility model is excellent, has good market Prospect, a kind of high theftproof lock of security performance is provided for current lockset market, better than C levels lock at present on the market.

Claims (9)

1. a kind of theftproof lock, including lock body (1) and the lock core (2) in the lock body (1), described lock core (2) is interior to be provided with For the key slot of key insertion, it is characterised in that：Described key slot includes straight trough (24) and at least one skewed slot (25), described Skewed slot (25) communicate with straight trough (24) and be obliquely installed relative to straight trough (24), in described skewed slot (25) and straight trough (24) place The first locking member and the second locking member are each configured with, the first described locking member and the second locking member are used to limit Can fixed lock core (2) rotate relative to lock body (1), have and lock and unlock two states.

2. theftproof lock according to claim 1, it is characterised in that：Described lock core (2) includes lock core shell (21), is oriented to dress Put (22) and hoodle component (23)；

Described lock core shell (21) includes leading portion and back segment, and described straight trough (24) is located in leading portion lock core shell (211), described Back segment lock core shell (212) has inclined-plane A (2121)；

There is described guider (22) inclined-plane B (221), inclined-plane B (221) to coordinate described inclined-plane A (2121) to set, Described skewed slot (25) is formed between two inclined-planes (2121,221)；

The first described locking member is hoodle component (23), after the corresponding described skewed slot (25) of the hoodle component (23) is arranged on In section lock core shell (212) and lock body (1), can it be used to limiting lock core shell (21) and be rotated relative to lock body (1), have lock with Unlock two states；

For described skewed slot (25) after the key that insertion is adapted, the inclined-plane B (221) of guider (22) can hold out against the one of key Side, the another side of key is promoted hoodle component (23), be at described released state.

3. theftproof lock according to claim 2, it is characterised in that：Described guider (22) is configured with elastic parts (26), the elastic restoring force of the elastic parts (26) drives guider (22) to be held out against to inclined-plane A (2121) side elasticity.

4. theftproof lock according to claim 3, it is characterised in that：Described lock core (2) also includes being arranged on guider (22) the sealing termination (27) at the back side, described elastic parts (26) includes connecting screw (261) and spring (262), described Connecting screw (261) sequentially passes through second on the first axially extending bore (271) and guider (22) in sealing termination (27) It is fixed on after axially extending bore (222) in back segment lock core shell (212) upper screwed hole (2122), second axially extending bore (222) Aperture is more than the external diameter of connecting screw (261), and described spring (262) is coated at connecting screw (261) and is in compressive state one End holds out against guider (22), other end top tight sealing termination (27).

5. theftproof lock according to claim 4, it is characterised in that：Also include being used for spacing connection sheet (28), it is described close The end face of head (27) and the end plane-plane contact of lock core shell (21) are blocked, one end of the connection sheet (28) is fixed on sealing termination (27) on, the other end is buckled on the boss structure (11) of lock body (1) outer wall, for limiting the axial movement of lock core (2).

6. according to the theftproof lock described in any one in claim 1-5, it is characterised in that：The second described locking member is lock Piece (29), coordinate the locking plate (29) that described straight trough (24) place is provided with the locking plate groove (2111) of radial direction, described locking plate (29) it is slidably arranged in the locking plate groove (2111).

7. according to the theftproof lock described in any one in claim 1-5, it is characterised in that：The quantity of the skewed slot (25) is two It is individual or four, and be symmetric.

8. theftproof lock according to claim 1, it is characterised in that：The middle part phase of described skewed slot (25) and straight trough (24) It is logical.

9. a kind of theftproof lock, including lock body (1) and the lock core (2) in the lock body (1), described lock core (2) is interior to be provided with For the key slot of key insertion, it is characterised in that：Described key slot includes straight trough (24) and at least one skewed slot (25), described Skewed slot (25) communicate with straight trough (24) and be obliquely installed relative to straight trough (24), be configured with first at described skewed slot (25) place Can locking member, the first described locking member rotate for limiting lock core (2) relative to lock body (1), and there is locking to conciliate Lock two states.