CN110566057B

CN110566057B - Anti-theft lock

Info

Publication number: CN110566057B
Application number: CN201910856055.5A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2021-07-27
Anticipated expiration: 2039-09-11
Also published as: CN110566057A

Abstract

The invention belongs to the technical field of anti-theft locks, and particularly relates to an anti-theft lock which comprises a lock body and a key; a key slot is formed in the lock body; a connecting rod is fixedly connected above the right end of the lock cylinder; the right side of the connecting rod is fixedly connected with a conical block; the upper surface of each clamping plate is fixedly connected with a first clamping block; the inner wall of the right side of the lock cylinder is fixedly connected with a second clamping block; a first sliding block is connected in the first sliding groove in a sliding manner through a spring; a lock ring is arranged on the upper surface of the lock body; the key consists of a handle and a round rod; a rotating shaft is fixedly connected in the third groove through a spring; a fourth groove is formed in the right side of the third groove; extrusion grooves are formed in the top and the bottom of the fourth groove; the invention is mainly used for solving the problems that the existing anti-theft lock always uses a spring or a resistance limiting device of a tension spring forming mechanism to achieve the locking function, the lock is prevented from being damaged by external force or the spring is hooked by using an iron wire, so that the lock is unlocked, and the lock core is prevented from being rusted and damaged due to water inlet.

Description

Anti-theft lock

Technical Field

The invention belongs to the technical field of anti-theft locks, and particularly relates to an anti-theft lock.

Background

Along with the development of society, the lock on the market is diversified, and the anti-theft means adopted is also diversified, such as a straight key, a cross key, an AB surface key and the like, but the existing lock still can not prevent a thief from unlocking the lock through a key hole by using a tool, and the thief who partially grasps a certain technical means can unlock the lock by using own technology, such as using an integrated key or an integrated theft tool to stir a locking device in a lock bolt of the lock, so that higher requirements are also put forward on the anti-theft lock.

Although the existing anti-theft lock has various types, the requirement of locking function is always met by additional springs or tension springs to form a 'resistance limiting device' of a mechanism on the design of a main control machine. However, the conventional structure lacks a mechanical balance control principle, and once the structure is damaged by external force, the lock control supporting force and the locking safety state are easily damaged by prying due to insufficient adhesion of the spring.

Disclosure of Invention

In order to make up for the defects of the prior art, the anti-theft lock provided by the invention is mainly used for solving the problems that the existing anti-theft lock always uses a spring or a resistance limiting device of a tension spring forming mechanism to achieve the locking function, and the lock is prevented from being damaged by external force or the spring is hooked by an iron wire, so that the lock is unlocked, and the lock cylinder is prevented from being rusted and damaged due to water inlet.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an anti-theft lock, which comprises a lock body and a key; a key slot is formed in the lock body; the inner wall of the key slot is rotationally connected with a lock cylinder; a first groove is formed in the lock body and communicated with the key slot, and the first groove is positioned above the lock cylinder and is designed to be perpendicular to the lock cylinder; a connecting rod is fixedly connected above the right end of the lock cylinder and is arranged in the first groove; the right side of the connecting rod is fixedly connected with conical blocks which are uniformly arranged; a cylindrical groove is formed in the right side of the first groove and on the upper surface of the lock body, and the cylindrical groove is communicated with the first groove part; second grooves which are uniformly distributed are formed in the lock body on the right of the lock cylinder; a clamping plate is connected in each second groove in a sliding mode through a spring, and the clamping plates extend into the key grooves through clamping grooves formed in the right side wall of the lock cylinder; the upper surface of each clamping plate is fixedly connected with two first clamping blocks; the upper surface and the lower surface of the inner wall of the right side of the lock cylinder are fixedly connected with a second clamping block; a first sliding groove is formed above the lock cylinder in the lock body; a first sliding block is connected in the first sliding groove in a sliding manner through a spring; a lock ring is arranged on the upper surface of the lock body; the left arm of the lock ring extends into the first sliding groove and is fixedly connected with the first sliding block; the right arm of the lock ring can extend into the cylindrical groove; the right arm of the locking ring is provided with a conical groove, and the conical groove is matched with conical blocks uniformly arranged on the right side of the connecting rod; the key comprises a handle, a rotating ring and a rod core; the left side of the swivel is fixedly connected with a handle; a through hole is formed above the handle, and the through hole determines the correct direction of inserting the key into the key slot; the rod core is positioned in the swivel and is fixedly connected with the inner wall of the swivel through uniformly arranged springs; the rod core is internally provided with fourth grooves which are uniformly arranged and have different lengths, the fourth grooves correspond to the clamping plates extending into the key slot one by one, and the clamping plates can extend into the fourth grooves; the upper end and the lower end of the outer side of the rotating ring are both provided with extrusion grooves, the extrusion grooves correspond to the second clamping blocks one by one, and the second clamping blocks can be inserted into the corresponding extrusion grooves; when the lock is required to be unlocked, firstly, a key is inserted into the key slot, the clamping plate extends into the fourth groove in the rod core in the process that the key slides in the key slot, the rod core continuously slides rightwards to push the first clamping block on the left side to slide rightwards, meanwhile, the first clamping block drives the clamping plate to move rightwards, the sliding is stopped when the first clamping block on the left side is attached to the right wall of the lock core, the first clamping blocks are distributed on two sides of the right wall of the lock core at the moment, the fixing state of the first clamping blocks on the lock core is released, meanwhile, the second clamping blocks fixedly connected to the upper surface and the lower surface of the inner wall on the right side of the lock core extend into the extrusion grooves on two sides of the rotating ring, the key is rotated clockwise at the moment, the rod core is mutually fixed with the clamping plate through the fourth groove, the rotating ring rotates clockwise, the extrusion grooves drive the second clamping blocks to rotate clockwise in the process that the rotating ring rotates clockwise, and the clamping groove is formed in the right side of the lock core in the process that the lock core rotates, the anti-theft lock can prevent the clamping plate and the lock core from rotating together, meanwhile, the lock core drives the connecting rod in the first groove to rotate clockwise, the conical block which is evenly distributed on the right side of the connecting rod is separated from the conical groove which is arranged on the left side of the right wall of the lock ring matched with the conical block in the rotating process, when the conical block is completely separated from the conical groove, the first sliding block in the first sliding groove slides upwards under the action force of the spring and drives the whole lock ring to move upwards, and at the moment, the anti-theft lock is in an open state, because the anti-theft lock does not use the spring or the tension spring as a limiting device, a lawless person can be prevented from using the iron wire to hook and pull the spring to open the lock, and the lock can be damaged at the same time, because the clamping plate fixedly connected with the second clamping block is arranged in the lock core, through the mutual fastening and matching of the first clamping plate and the lock core, the anti-theft lock can be prevented from being damaged by lawless persons so as to open the lock, and has a simple structure, the fastening and anti-theft functions of the anti-theft lock are greatly improved through the mutual matching of the mechanisms.

Preferably, an air bag is fixedly connected in the extrusion groove; a second sliding groove is formed in the rotating ring on the left side of the extrusion groove and is communicated with the air bag through an air passage; a second sliding block is connected in the second sliding groove in a sliding manner through a spring; an elongated slot is formed in the lock core above the second sliding slot and communicated with the key slot; a wane is rotatably connected in the long groove through a circular shaft; the upper surface of the left side of the wane and the lower surface of the right side of the wane are fixedly connected with squares, and the square on the right side is heavier than the square on the left side; a square groove is formed in the inner wall of the lock body above the square block on the left side; the square block on the left side extends into the square groove under the influence of the gravity of the square block on the right side, and the square block on the right side corresponds to the second sliding block; when the anti-theft lock works, in the process that the key round rod moves rightwards, when the second clamping block extends into the extrusion groove in the rotating ring, the air bag is arranged in the extrusion groove, at the moment, the second clamping block extrudes the air bag, the air in the air bag is transmitted into the second sliding groove through the air passage, the second sliding block upwards slides under the pressure of the air, in the process that the second sliding block upwards slides, the second sliding block is attached to the right square block and pushes the right square block to upwards move through the notch, in the process that the right square block upwards moves, the wane is driven to anticlockwise rotate, meanwhile, the wane drives the left square block to downwards move, the secondary fixation of the anti-theft lock is released, in the state that the anti-theft lock is clamped, the left square block is placed in the square groove, the effect of fixing the lock cylinder can be achieved, and therefore, a lawless person is prevented from forcibly rotating the lock cylinder to damage the first clamping block fixedly connected on the clamping plate, and the effect of fixing the first clamping block is failed, thereby reduce the security of pickproof lock, can realize the double-deck protection to the pickproof lock through setting up this mechanism, can also prevent simultaneously that lawless persons from opening the tool to lock and stealing through using the instrument to destroy the lock core.

Preferably, the keyhole of the key slot is designed in an inclined mode; the key slot is characterized in that rubber layers which are uniformly arranged are fixedly connected with the key slot, and the rubber layers are mutually attached to seal the key slot in an initial state; during operation, because the design of key slot slotted hole department slope, can prevent that external rivers from flowing into the key slot in, avoid the lock core to receive the corrosion damage pickproof lock, thereby because the slotted hole of the sealed key slot of the mutual laminating of the rubber layer that slot hole department linked firmly, can be better avoid external rivers to flow into the key slot in, prevent that the lock core from rustting and damaging the pickproof lock and reduce the life of pickproof lock, can also prevent simultaneously that external dust impurity from getting into the key slot in and blockking up the normal use that the key slot influences the pickproof lock.

Preferably, a cavity is formed in the rubber layer above the rubber layer, and lubricating oil is stored in the cavity; an oil filling hole is formed in one side, far away from the clamping plate, of the top of the cavity; an oil outlet is formed in one side, close to the clamping plate, of the bottom of the cavity, and the oil outlet is smaller in aperture and can spray out lubricating oil in the cavity when being extruded; the during operation, in-process in the key round bar inserts the lock core, the rubber layer receives the extrusion force of round bar to the laminating of key slot inner wall, because lubricating oil is stored to the intraformational cavity of rubber, in-process at rubber layer laminating inner wall, lubricating oil flows to the round bar from the oil outlet blowout, the resistance reduces when making the round bar insert the lock core, avoid hindering the round bar to take place to hinder when inserting the lock core because of getting rusty in the lock core, reduce the wearing and tearing to the key slot, thereby improve the life of pickproof lock, the pickproof lock can also be opened to more relaxed rotation lock core, can directly add from oil feed hole department when needs supply lubricating oil, avoid slowing down the progress of unblanking because of lubricating oil is too few.

Preferably, one side of the rubber layer, which is close to the clamping plate, is fixedly connected with a sponge layer, and the sponge layer is communicated with the cavity in the rubber layer; the during operation, because the rubber layer has linked firmly the sponge layer, and sponge layer and rubber in-layer cavity intercommunication, messenger's lubricating oil that can be more abundant when the round bar inserts the lock core contacts with the change, thereby reach the effect of better lubricated lock core, when needs take out the key, at the in-process that the round bar moved backward, because the round bar receives the extrusion on rubber layer and sponge layer, lubricating oil on the round bar is whole to be left over on rubber layer and sponge layer, thereby the waste of lubricating oil has been reduced greatly, the while has avoided too much of lubricating oil to remain and has made dirty hand and clothes on the key again.

Preferably, the outer surface of the lock body is fixedly connected with a wrapping layer; a cavity is formed in the wrapping layer, a third sliding groove is formed in the inner wall of the lock body on the right side of the cylindrical groove, and the third sliding groove is communicated with the cylindrical groove; the cavity is communicated with the third chute through an air passage; a third sliding block is connected in the third sliding groove in a sliding manner; the left side surface of the third sliding block and the outer side of the right arm of the locking ring are both designed to be rough surfaces, and the two rough surfaces are matched with each other; the during operation, under the blocked state of pickproof lock, because the lock body surface has linked firmly the parcel layer, and the intracavity has been seted up to the parcel, gas in the intracavity transmits the third spout through the air flue when the lock body receives to strike, because the third slider receives gaseous pressure to move left, the left cell surface of third slider and the cell surface in the lock ring right side arm outside mutually support simultaneously and realize the chucking, thereby strengthen the fixed strength of lock ring and lock body, avoid lawless persons to strike the lock body and open the pickproof lock and steal, owing to receive the injury that can reduce the pickproof lock when strikeing at the lock body through setting up the parcel layer, strengthen the compressive capacity of pickproof lock.

The invention has the following beneficial effects:

1. the invention relates to an anti-theft lock, which is characterized in that a device that a wane and a second slide block are mutually matched is arranged, when a second clamping block extends into an extrusion groove in a round rod in the process that a key round rod moves rightwards, the second clamping block extrudes an air bag at the moment, air in the air bag is transmitted into a second sliding groove through an air passage, the second slide block slides upwards under the pressure of the air, pushes a right square block to move upwards through a notch, simultaneously drives the wane to rotate anticlockwise and move the left square block downwards, and removes the secondary fixation of the anti-theft lock at the moment, and under the locking state of the anti-theft lock, when the left square block is arranged in a square groove, the effect of fixing the lock core can be achieved, so that a first clamping block fixedly connected on a clamping plate is prevented from being damaged by forcefully rotating the lock core by a lawbreaker, the effect of fixing the lock core by the first clamping block is avoided, the safety of the anti-theft lock is reduced, and double-protection of the anti-theft lock can be realized by arranging the mechanism, meanwhile, the effect that lawless persons damage the lock cylinder to unlock through using tools can be avoided.

2. According to the anti-theft lock, the rubber layer and the sponge layer are arranged, the sponge layer is fixedly connected to the rubber layer and is communicated with the cavity in the rubber layer, so that the round rod can be more fully contacted with the round rod when inserted into the lock core, and a better effect of lubricating the lock core is achieved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a body diagram of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a working cross-sectional view of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a cross-sectional view B-B of FIG. 2;

in the figure: the lock body 1, the lock ring 11, the first sliding groove 12, the first sliding block 13, the tapered groove 14, the cylindrical groove 15, the key groove 2, the rubber layer 21, the cavity 22, the sponge layer 23, the lock core 24, the first groove 25, the connecting rod 26, the tapered block 27, the clamping plate 28, the first clamping block 29, the second clamping block 211, the long groove 221, the rocker 231, the square 241, the square groove 251, the second groove 261, the clamping groove 271, the key 3, the handle 31, the round rod 32, the rod core 33, the swivel 34, the fourth groove 35, the extrusion groove 36, the air bag 37, the second sliding groove 38, the second sliding block 39, the wrapping layer 311, the third sliding groove 321 and the third sliding block 331.

Detailed Description

An antitheft lock according to an embodiment of the present invention will be described below with reference to fig. 1 to 5.

As shown in fig. 1-5, the anti-theft lock of the present invention comprises a lock body 1 and a key 3; a key slot 2 is formed in the lock body 1; the inner wall of the key slot 2 is rotationally connected with a lock core 24; a first groove 25 is formed in the lock body 1, the first groove 25 is communicated with the key slot 2, and the first groove 25 is positioned above the lock core 24 and is perpendicular to the lock core 24; a connecting rod 26 is fixedly connected above the right end of the lock cylinder 24, and the connecting rod 26 is arranged in the first groove 25; the right side of the connecting rod 26 is fixedly connected with conical blocks 27 which are uniformly arranged; a cylindrical groove 15 is formed in the right side of the first groove 25 and on the upper surface of the lock body 1, and the cylindrical groove 15 is partially communicated with the first groove 25; second grooves 261 which are uniformly arranged are formed in the lock body 1 on the right side of the lock core 24; each second groove 261 is connected with a clamping plate 28 in a sliding manner through a spring, and the clamping plates 28 respectively extend into the key slot 2 through clamping grooves 271 formed in the right side wall of the lock core; the upper surface of each clamping plate 28 is fixedly connected with two first clamping blocks 29; the upper surface and the lower surface of the inner wall of the right side of the lock cylinder 24 are fixedly connected with a second clamping block 211; a first chute 12 is arranged above the lock core 24 in the lock body 1; a first sliding block 13 is connected in the first sliding groove 12 in a sliding manner through a spring; the upper surface of the lock body 1 is provided with a lock ring 11; the left arm of the lock ring 11 extends into the first sliding groove 12 and is fixedly connected with the first sliding block 13; the right arm of the lock ring 11 can extend into the cylindrical groove 15; the right arm of the lock ring 11 is provided with a tapered slot 14, and the tapered slot 14 is matched with tapered blocks 27 uniformly arranged on the right side of the connecting rod 26; the key 3 comprises a handle, a swivel 34 and a stem 33; the left side of the rotating ring 34 is fixedly connected with a handle; a through hole is formed above the handle 31 and determines the correct direction of the key 3 inserted into the key slot 2; the rod core 33 is positioned in the rotating ring 34 and is fixedly connected with the inner wall of the rotating ring 34 through uniformly arranged springs; the rod core 33 is internally provided with fourth grooves 35 which are uniformly arranged and have different lengths, the fourth grooves 35 correspond to the clamping plates 28 extending into the key slot 2 one by one, and the clamping plates 28 can extend into the fourth grooves 35; the upper end and the lower end of the outer side of the rotating ring are both provided with extrusion grooves 36, the extrusion grooves 36 correspond to the second clamping blocks 211 one by one, and the second clamping blocks 211 can be inserted into the corresponding extrusion grooves; when the key is required to be unlocked, firstly, the key 3 is inserted into the key slot 2, the clamping plate 28 extends into the fourth groove 35 in the rod core 33 in the process that the key 3 slides in the key slot 2, the rod core 33 continues to slide rightwards to push the left first clamping block 29 to slide rightwards, meanwhile, the first clamping block 29 drives the clamping plate 28 to move rightwards, the sliding is stopped when the left first clamping block 29 is attached to the right wall of the lock core 24, at the moment, the first clamping blocks 29 are distributed on two sides of the right wall of the lock core 24, the fixing state of the first clamping blocks 29 on the lock core 24 is released, meanwhile, the second clamping blocks 211 fixedly connected to the upper and lower surfaces of the right inner wall of the lock core 24 extend into the extrusion grooves 36 on two sides of the rotating ring 34, at the moment, the key 3 is rotated clockwise, the rod core 33 is fixed with the clamping plate 28 through the fourth groove 35, the rotating ring 34 rotates clockwise, and in the process that the rotating ring 34 rotates clockwise, the extrusion grooves 36 drive the second clamping blocks 211 to rotate clockwise, meanwhile, the second fixture block 211 drives the lock core 24 to rotate clockwise, in the process of rotating the lock core 24, since the right side of the lock core 24 is provided with the clamping groove 271, the clamping plate can be prevented from rotating together with the lock core, meanwhile, the lock core 24 drives the connecting rod 26 in the first groove 25 to rotate clockwise, the tapered block 27 which is fixedly connected to the right side of the connecting rod 26 and is uniformly arranged is separated from the tapered groove 14 which is arranged on the left side of the right wall of the locking ring 11 and is matched with the tapered block 27 in the rotating process, after the tapered block 27 is completely separated from the tapered groove 14, the first sliding block 13 in the first sliding groove 12 slides upwards under the action of the spring, and simultaneously drives the whole locking ring 11 to move upwards, at the moment, the anti-theft lock is in an opening state, since no spring or tension spring is used as a limiting device in the anti-theft lock, a lawless person can be prevented from hooking and pulling, through the mutual fastening cooperation of the first clamping block 29, the clamping plate 28 and the lock cylinder 24, the lock can be prevented from being opened by destroying the lock cylinder 24 by lawless persons, the anti-theft lock is simple in structure, and the fastening and anti-theft effects of the anti-theft lock are greatly improved through the mutual cooperation of all mechanisms.

In one embodiment of the present invention, an air bag 37 is fixedly connected in the extrusion groove 36; a second sliding groove 38 is formed in the rotating ring 34 at the left side of the extrusion groove 36, and the second sliding groove 38 is communicated with the air bag 37 through an air passage; a second sliding block 39 is connected in the second sliding groove 38 in a sliding manner through a spring; an elongated slot 221 is formed in the lock core 24 above the second chute 38, and the elongated slot is communicated with the key slot; a wane 231 is rotatably connected in the long groove 221 through a circular shaft; the upper surface of the left side of the warped plate 231 and the lower surface of the right side of the warped plate 231 are fixedly connected with a square 241, and the square of the right side is heavier than the square of the left side; a square groove 251 is formed in the inner wall of the lock body 1 above the square block 241 on the left side; the block 241 on the left side extends into the square groove 251 under the influence of the gravity of the block on the right side, and the block 241 on the right side corresponds to the second sliding block 39; in operation, in the process that the round rod 32 of the key 3 moves rightwards in the lock cylinder 24, when the second latch 211 extends into the pressing groove 36 in the rotating ring 34, because the air bag 37 is arranged in the pressing groove 36, at this time, the second latch 211 presses the air bag 37, the air in the air bag 37 is transmitted into the second sliding groove 38 through the air channel, the second slider 39 slides upwards under the pressure of the air, in the process that the second slider 39 slides upwards, the second slider 39 is attached to the right square 241 and pushes the right square 241 to move upwards through the notch, in the process that the right square 241 moves upwards, the rocker 231 is driven to rotate anticlockwise, meanwhile, the rocker 231 drives the left square 241 to move downwards, at this time, the secondary fixing of the anti-theft lock is released, in the state that the left square 241 is placed in the square groove 251 with strong force, the effect of fixing the lock cylinder 24 can be achieved, thereby preventing an illegal person from rotating the lock cylinder 24 and damaging the first latch 29 fixedly connected on the catch plate 28, the effect of the first clamping block 29 for fixing the lock cylinder 24 is disabled, so that the safety of the anti-theft lock is reduced, double-layer protection of the anti-theft lock can be realized by the mechanism, and meanwhile, a lawbreaker can be prevented from opening the lock by using a tool to damage the lock cylinder 24 to steal the lock.

As an embodiment of the invention, the slot hole of the key slot 2 is designed to be inclined; the slotted hole of the key slot 2 is fixedly connected with rubber layers 21 which are uniformly arranged, and the rubber layers 21 are mutually attached to seal the slotted hole of the key slot 2 in an initial state; during operation, because the inclined design of 2 slotted holes departments of key slot, can prevent that external rivers from flowing into in the key slot 2, avoid lock core 24 to receive the corrosion damage pickproof lock, thereby because the slotted hole of the sealed key slot 2 of the mutual laminating of the rubber layer that slot department linked firmly, can be better avoid external rivers to flow into in the key slot 2, prevent 24 rusts of lock core and damage the pickproof lock and reduce the life of pickproof lock, can also prevent simultaneously that external dust impurity from getting into in the key slot 2 and blockking up the normal use that the key slot 2 influences the pickproof lock.

As an embodiment of the present invention, a cavity 22 is formed in the rubber layer 21 located above, and lubricating oil is stored in the cavity 22; an oil filling hole is formed in one side, far away from the clamping plate, of the top of the cavity; an oil outlet is formed in one side, close to the clamping plate, of the bottom of the cavity, and the oil outlet is smaller in aperture and can spray out lubricating oil in the cavity when being extruded; the during operation, insert the in-process in the lock core 24 at 3 round bars 32 of key, rubber layer 21 receives the extrusion force of round bars 32 to the laminating of 2 inner walls of key slot, because cavity 22 in the rubber layer 21 has stored lubricating oil, at the in-process of the rubber layer 21 laminating inner wall, lubricating oil flows to round bars 32 from the oil outlet blowout, the resistance reduces when making round bars 32 insert in the lock core 24, it hinders taking place when inserting lock core 24 to avoid 24 interior round bars 32 of hindering because of getting rusty, reduce the wearing and tearing to the key slot, thereby improve the life of pickproof lock, the pickproof lock is opened to rotation lock core 24 that can also relax, can directly add from the oil inlet when needs replenish lubricating oil, avoid slowing down the progress of unblanking because of lubricating oil is too few.

As an embodiment of the invention, one side of the rubber layer 21 close to the clamping plate is fixedly connected with a sponge layer 23, and the sponge layer 23 is communicated with the inner cavity 22 of the rubber layer 21; during operation, because rubber layer 21 has linked firmly sponge layer 23, and sponge layer 23 and the cavity 22 intercommunication in the rubber layer 21, can be more abundant messenger's lubricating oil and swivel 34 contact when round bar 32 inserts lock core 24, thereby reach better lubricated lock core 24's effect, when the key 3 is taken out to needs, at the in-process that round bar 32 removed backward, because round bar 32 receives the extrusion of rubber layer 21 and sponge layer 23, the whole lubricating oil of round bar 32 is left over on rubber layer 21 and sponge layer 23, thereby the waste of lubricating oil has been reduced greatly, the too much of remaining of lubricating oil simultaneously makes dirty hand and clothes on the key 3.

As an embodiment of the present invention, a wrapping layer 311 is fixedly connected to an outer surface of the lock body 1; a cavity is formed in the wrapping layer 311, a third sliding groove 321 is formed in the inner wall of the lock body 1 on the right side of the cylindrical groove 15, and the third sliding groove 321 is communicated with the cylindrical groove 15; the cavity is communicated with the third chute 321 through an air passage; a third sliding block 331 is slidably connected in the third sliding groove 321; the left surface of the third sliding block 331 and the outer side of the right arm of the locking ring 11 are both designed to be rough surfaces, and the two rough surfaces are matched with each other; the during operation, under the blocked state of pickproof lock, because 1 surface of lock body has linked firmly parcel layer 311, and it has the cavity to have seted up in the parcel layer 311, when lock body 1 received to strike the time intracavity gaseous transmit to third spout 321 in through the air flue, because third slider 331 receives gaseous pressure to move left, the left cell surface of third slider 331 and the cell surface in the 11 right arm outsides of catch mutually support realization chucking simultaneously, thereby strengthen the fixed strength of catch 11 and lock body 1, avoid lawless persons to strike lock body 1 and open the pickproof lock and steal, owing to receive the injury that can reduce the pickproof lock when strikeing at the lock body through setting up the parcel layer, strengthen the compressive capacity of pickproof lock.

The specific working process is as follows:

when the key is required to be unlocked, firstly, the key 3 is inserted into the key slot 2, the clamping plate 28 extends into the fourth groove 35 in the rod core 33 in the process that the key 3 slides in the key slot 2, the rod core 33 continues to slide rightwards to push the left first clamping block 29 to slide rightwards, meanwhile, the first clamping block 29 drives the clamping plate 28 to move rightwards, the sliding is stopped when the left first clamping block 29 is attached to the right wall of the lock core 24, at the moment, the first clamping blocks 29 are distributed on two sides of the right wall of the lock core 24, the fixing state of the first clamping blocks 29 on the lock core 24 is released, meanwhile, the second clamping blocks 211 fixedly connected to the upper and lower surfaces of the right inner wall of the lock core 24 extend into the extrusion grooves 36 on two sides of the rotating ring 34, at the moment, the key 3 is rotated clockwise, the rod core 33 is fixed with the clamping plate 28 through the fourth groove 35, the rotating ring 34 rotates clockwise, and in the process that the rotating ring 34 rotates clockwise, the extrusion grooves 36 drive the second clamping blocks 211 to rotate clockwise, meanwhile, the second fixture block 211 drives the lock core 24 to rotate clockwise, in the process of rotating the lock core 24, as the right side of the lock core 24 is provided with the clamping groove 271, the clamping plate can be prevented from rotating together with the lock core, meanwhile, the lock core 24 drives the connecting rod 26 in the first groove 25 to rotate clockwise, the tapered block 27 which is fixedly connected to the right side of the connecting rod 26 and is uniformly arranged is separated from the tapered groove 14 which is arranged on the left side of the right wall of the lock ring 11 and is matched with the tapered block 27 in the rotating process, after the tapered block 27 is completely separated from the tapered groove 14, the first sliding block 13 in the first sliding groove 12 slides upwards under the action of the spring, and simultaneously drives the whole lock ring 11 to move upwards, at the moment, the anti-theft lock is in an open state, in the process that the round rod 32 of the key 3 moves rightwards in the lock core 24, when the second fixture block 211 extends into the extrusion groove 36 in the rotating ring 34, as the air bag 37 is arranged in the extrusion groove 36, at the moment, the air bag 37 is extruded by the second fixture block 211, the air in the air bag 37 is transmitted into the second chute 38 through the air passage, the second slider 39 slides upwards under the pressure of the air, in the process that the second slider 39 slides upwards, the second slider 39 is attached to the right square 241 and pushes the right square 241 to move upwards through the notch, in the process that the right square 241 moves upwards, the rocker 231 is driven to rotate anticlockwise, meanwhile, the rocker 231 drives the left square 241 to move downwards, at the moment, the secondary fixation of the anti-theft lock is released, in the process that the round rod 32 of the key 3 is inserted into the lock core 24, the rubber layer 21 is attached to the inner wall of the key groove 2 under the extrusion force of the round rod 32, as the cavity 22 in the rubber layer 21 stores lubricating oil, in the process that the rubber layer 21 is attached to the inner wall, the lubricating oil is sprayed to the round rod 32 from the oil outlet, and as the rubber layer 21 is fixedly connected with the sponge layer 23, the more sufficient lubricating oil can be contacted with the round rod 32 when the round rod 32 is inserted into the lock core 24, thereby reach better lubricated lock core 24's effect, under the state of pickproof lock blockade, because lock body 1 surface has linked firmly parcel layer 311, and has seted up the cavity in the parcel layer 311, when lock body 1 received to beat the intracavity gas pass through the air flue and transmit to third spout 321 in, because third slider 331 receives the pressure of gas and removes left, the chucking is realized mutually supporting with the groove face in the 11 right arms outsides of catch to the left groove face of third slider 331 simultaneously, thereby reinforcing catch 11 and lock body 1's fixed strength.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An anti-theft lock, its characterized in that: comprises a lock body (1) and a key (3); a key slot (2) is formed in the lock body (1); the inner wall of the key slot (2) is rotationally connected with a lock core (24); a first groove (25) is formed in the lock body (1), the first groove (25) is communicated with the key slot (2), and the first groove (25) is positioned above the lock core (24) and is designed to be perpendicular to the lock core (24); a connecting rod (26) is fixedly connected above the right end of the lock cylinder (24), and the connecting rod (26) is arranged in the first groove (25); the right side of the connecting rod (26) is fixedly connected with conical blocks (27) which are uniformly arranged; a cylindrical groove (15) is formed in the right side of the first groove (25) and is formed in the upper surface of the lock body (1), and the cylindrical groove (15) is partially communicated with the first groove (25); second grooves (261) which are uniformly distributed are formed in the lock body (1) on the right of the lock core (24); each second groove (261) is internally and slidably connected with a clamping plate (28) through a spring, and the clamping plates (28) respectively extend into the key slot (2) through clamping grooves (271) formed in the right side wall of the lock core; the upper surface of each clamping plate (28) is fixedly connected with two first clamping blocks (29); the upper surface and the lower surface of the inner wall of the right side of the lock cylinder (24) are fixedly connected with a second clamping block (211); a first sliding groove (12) is formed above the inner lock core (24) of the lock body (1); a first sliding block (13) is connected in the first sliding groove (12) in a sliding manner through a spring; a lock ring (11) is arranged on the upper surface of the lock body (1); the left arm of the lock ring (11) extends into the first sliding groove (12) and is fixedly connected with the first sliding block (13); the right arm of the lock ring (11) can extend into the cylindrical groove (15); a tapered groove (14) is formed in the right arm of the lock ring (11), and the tapered groove (14) is matched with tapered blocks (27) uniformly arranged on the right side of the connecting rod (26); the key (3) comprises a handle, a swivel (34) and a shank (33); the left side of the swivel (34) is fixedly connected with a handle; a through hole is formed above the handle (31), and the through hole determines the correct direction of the key (3) inserted into the key slot (2); the rod core (33) is positioned in the rotating ring (34) and is fixedly connected with the inner wall of the rotating ring (34) through uniformly arranged springs; the rod core (33) is internally provided with fourth grooves (35) which are uniformly arranged and have different lengths, the fourth grooves (35) correspond to the clamping plates (28) extending into the key slot (2) one by one, and the clamping plates (28) can extend into the fourth grooves (35); extrusion grooves (36) are formed in the upper end and the lower end of the outer side of the rotating ring, the extrusion grooves (36) correspond to the second clamping blocks (211) one by one, and the second clamping blocks (211) can be inserted into the corresponding extrusion grooves.

2. An anti-theft lock according to claim 1, characterized in that: an air bag (37) is fixedly connected in the extrusion groove (36); a second sliding groove (38) is formed in the rotating ring (34) on the left side of the extrusion groove (36), and the second sliding groove (38) is communicated with the air bag (37) through an air passage; a second sliding block (39) is connected in the second sliding groove (38) in a sliding manner through a spring; an elongated slot (221) is formed in the lock core (24) above the second sliding slot (38), and the elongated slot is communicated with the key slot; a wane (231) is rotatably connected in the long groove (221) through a circular shaft; the upper surface of the left side of the warped plate (231) and the lower surface of the right side of the warped plate (231) are fixedly connected with square blocks (241), and the square block on the right side is heavier than the square block on the left side; a square groove (251) is formed in the inner wall of the lock body (1) above the square block (241) on the left side; the block (241) on the left side extends into the square groove (251) under the influence of the gravity of the block on the right side, and the block (241) on the right side corresponds to the second sliding block (39).

3. An anti-theft lock according to claim 1, characterized in that: the slotted hole of the key slot (2) is designed to be inclined; the slotted hole of key slot (2) department links firmly rubber layer (21) of evenly arranging, and rubber layer (21) are laminated each other and are sealed the slotted hole of key slot (2) under the initial condition.

4. A theft-proof lock, according to claim 3, characterized in that: a cavity (22) is formed in the rubber layer (21) positioned above the rubber layer, and lubricating oil is stored in the cavity (22); an oil filling hole is formed in one side, far away from the clamping plate, of the top of the cavity; oil outlet holes are formed in one side, close to the clamping plate, of the bottom of the cavity, and the diameter of each oil outlet hole is small, so that lubricating oil in the cavity can be sprayed out when the lubricating oil is extruded.

5. An anti-theft lock according to claim 4, characterized in that: one side of the rubber layer (21) close to the clamping plate is fixedly connected with a sponge layer (23), and the sponge layer (23) is communicated with the inner cavity (22) of the rubber layer (21).

6. An anti-theft lock according to claim 1, characterized in that: the outer surface of the lock body (1) is fixedly connected with a wrapping layer (311); a cavity is formed in the wrapping layer (311), a third sliding groove (321) is formed in the inner wall of the lock body (1) on the right side of the cylindrical groove (15), and the third sliding groove (321) is communicated with the cylindrical groove (15); the cavity is communicated with a third chute (321) through an air passage; a third sliding block (331) is connected in the third sliding groove (321) in a sliding manner; the left side surface of the third sliding block (331) and the outer side of the right arm of the locking ring (11) are both designed to be rough surfaces, and the two rough surfaces are matched with each other.