CN108412311B

CN108412311B - Anti-theft cylinder lock

Info

Publication number: CN108412311B
Application number: CN201810161544.4A
Authority: CN
Inventors: 魏大平
Original assignee: Wenzhou Puruida Machinery Technology Co ltd
Current assignee: Jiaxing worui Technology Co.,Ltd.
Priority date: 2018-02-26
Filing date: 2018-02-26
Publication date: 2020-08-14
Anticipated expiration: 2038-02-26
Also published as: CN108412311A

Abstract

The invention provides an anti-theft marble lockset, which comprises an encapsulation shell used for fixedly and additionally installing the lockset on a door body, wherein a locking device capable of switching the door body and a door frame between a closed locking state and an unlocked opening state is arranged in the encapsulation shell; the multi-touch linkage anti-theft mechanism is additionally arranged on the traditional spring lock, so that the technical opening difficulty of the lock is greatly increased, and the anti-theft performance of the lock is improved.

Description

Anti-theft cylinder lock

Technical Field

The invention relates to a lockset, in particular to a spring lock.

Background

Various locks are often used in daily life to protect the safety of property, and a cylinder lock is widely used as the most common lock due to convenient use. As an important living article, people put forward higher and higher requirements on the safety and anti-theft performance of a pin tumbler lock, a common pin tumbler lock provided by the prior art generally comprises a lock cylinder, a lock cylinder shell, vertical pins and a locking execution mechanism, wherein the lock cylinder is rotatably arranged in the lock cylinder shell, and by taking the most common anti-theft lock adopting cylindrical pins as an example, each row of pins are in the correct position after a correct key is inserted, namely, a lower pin tumbler is just positioned in the lock cylinder, and an upper pin tumbler is just positioned in the lock shell, so that the lock cylinder can rotate relative to the lock shell to unlock; when a key is pulled out or a wrong key is inserted, the marbles can be positioned between the lock shell and the lock core, so that the lock core cannot rotate.

Disclosure of Invention

In order to solve the defects of the prior art, the invention aims to provide a spring lock with an anti-theft function.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.

An anti-theft spring lock is characterized by comprising an encapsulation shell for fixedly and additionally installing a lock on a door body, wherein a locking device capable of switching the door body and a door frame between a closed locking state and an unlocked opening state is arranged in the encapsulation shell;

a circular groove matched with the cylindrical lock core is arranged in the lock shell, a tangent line of a contact surface between the outer circular surface of the cylindrical lock core and the inner circular surface of the circular groove forms a boundary line, under the condition that the key is not inserted/does not reach the designated position, the cylindrical lock core and the lock shell are in a locking state that the relative rotation can not occur, the cylinder lock core is internally coaxially provided with a key slot, the excircle surface of the cylinder lock core is provided with a plurality of inner pin tumbler holes which extend in a direction vertical to the central axis of the cylinder lock core, are uniformly distributed at intervals along the axial direction of the cylinder lock core and are respectively communicated with the inner cavity of the key slot, the lock shell is provided with an outer spring hole which is coaxially arranged with the inner spring hole and is correspondingly communicated with the inner spring hole, the inner pin hole and the outer pin hole are matched to form an accommodating groove, a pin assembly is installed in the accommodating groove in a matched mode, and the pin assembly can be pushed by a key inserted into the key insertion groove to unlock the cylindrical lock cylinder and the lock shell;

the multi-touch linkage anti-theft mechanism comprises an anti-theft outer marble hole I which is arranged on the lock shell and has the extending direction parallel to the central axis of the outer marble hole, and an anti-theft outer marble hole II which is arranged parallel to the anti-theft outer marble hole I at intervals, wherein an anti-theft outer marble I which can move along the hole depth direction of the anti-theft outer marble hole I and an anti-theft marble spring I which pushes the anti-theft outer marble I to move towards the key slot along the hole depth direction of the anti-theft outer marble hole I are movably matched in the anti-theft outer marble hole II, and an anti-theft outer marble II which can move along the hole depth direction of the anti-theft outer marble hole II and a anti-theft marble spring II which pushes the anti-theft outer marble II to move towards the key slot along the hole depth direction of;

the multi-touch linkage anti-theft mechanism also comprises a mounting groove arranged on the cylindrical lock core, a one-way touch locking mechanism with one end in contact with the first anti-theft outer marble and the other end extending into the inner cavity of the key slot is movably arranged in the mounting groove, a driven locking mechanism movably arranged in the mounting groove and with one end in contact with the second anti-theft outer marble, and a linkage driving mechanism arranged between the one-way touch locking mechanism and the driven locking mechanism and used for transmitting driving force, wherein the one-way touch locking mechanism needs to be triggered by two times of equal distance along the depth direction of one hole of the anti-theft outer marble hole, so that a contact surface between the driven locking mechanism and the second anti-theft outer marble is driven by the linkage driving mechanism to be coplanar with the boundary, and meanwhile, the contact surface between the one-way touch locking mechanism and the first anti-theft outer marble;

the driven locking mechanism comprises a guide sliding block movably arranged in the mounting groove, a second abutting push rod in abutting contact with the anti-theft outer marble II is arranged on the guide sliding block, and the driven locking mechanism further comprises a second spring which is sleeved outside the second abutting push rod, one end of the second spring is fixedly connected with the mounting groove, and the other end of the second spring is fixedly connected with the guide sliding block and used for drawing the guide sliding block to move towards the direction far away from the key slot; the guiding sliding block can move along the hole depth direction of the second anti-theft outer marble hole under the driving of the linkage driving mechanism, and when a key is inserted into the key slot and reaches a specified position, the guiding sliding block pushes the second pushing rod to move under the driving of the linkage driving mechanism and enables a contact surface between the second pushing rod and the second anti-theft outer marble to be coplanar with the boundary, and at the moment, the locking between the cylindrical lock core and the lock shell is released;

the linkage driving mechanism comprises a driving piece arranged on the guide sliding block in a sliding mode, a linkage element coaxially and movably sleeved on the driving piece, and a third spring arranged between the driving piece and the linkage element and used for pushing the linkage element to move towards the one-way touch locking mechanism.

The technical scheme is further improved and optimized.

The ball component comprises an outer ball and an inner ball which are coaxially movable and are arranged in the accommodating groove in an opposite-butting mode, wherein one part of the outer ball is positioned in the outer ball hole, the other part of the outer ball is positioned in the inner ball hole, the inner ball is positioned in the inner ball hole, a ball spring for pushing the outer ball to move towards the key slot along the depth direction of the accommodating groove is arranged between the outer ball and the outer ball hole, a limiting block for limiting the inner ball to move towards the key slot along the depth direction of the accommodating groove is arranged between the inner ball and the inner ball hole, one end of the inner ball is in contact with the outer ball in a butting mode, and the other end of the inner ball extends into the.

The technical scheme is further improved and optimized.

The one-way touch locking mechanism comprises a one-way touch element which is movably arranged in the mounting groove and forms sliding guide fit with the cylindrical lock core along the depth direction of the anti-theft outer pin hole, one end of the one-way touch element is in contact with the anti-theft outer pin, the other end of the one-way touch element extends into the inner cavity of the key slot, a limiting bump used for limiting the one-way touch element to move towards the key slot is further arranged on the one-way touch element close to the key slot, and the one-way touch locking mechanism further comprises an elastic piece which is arranged between the one-way touch element and the mounting groove and used for driving the one-way touch element to move.

The technical scheme is further improved and optimized.

The one-way touch element comprises a first push rod, a touch head and a connecting section arranged between the first push rod and the touch head, wherein the first push rod is contacted with the anti-theft outer marble in a butting way, the touch head extends into the inner cavity of the key slot, the limit bump is arranged between the touch head and the connecting section, the bulge is arranged between the first push rod and the connecting section, the spring a is sleeved outside the first push rod, the end surface of the connecting section matched with the bottom of the mounting groove is provided with a guiding one-way touch element which moves along the depth direction of the anti-theft outer bullet hole and forms a guiding restriction groove in sliding guiding matching with a first guiding block arranged on the mounting groove, the anti-disengaging mechanism is arranged between the guide constraint groove and the first guide block and is an anti-disengaging groove arranged on the first guide block and an anti-disengaging block arranged on the wall of the guide constraint groove.

The technical scheme is further improved and optimized.

The locking mechanism comprises a locking reset mechanism which is fixedly arranged on the connecting section and is arranged opposite to the guide constraint groove, the locking reset mechanism comprises a locking reset plate which is horizontally and fixedly arranged on the mounting groove, the locking reset plate is provided with a reset constraint frame with the guide direction vertical to the movement direction of the one-way touch element, an arc-shaped guide push plate is arranged in the reset constraint frame in a matching way, the locking reset plate is also provided with a driving element for pushing the arc-shaped guide push plate to move towards the direction close to the linkage driving mechanism along the guide direction of the reset constraint frame, the locking reset plate is provided with a guide pillar with the length extending direction parallel to the guide direction of the reset constraint frame, the driving element is a first spring which is coaxially sleeved on the outer circular surface of the guide pillar, one end of the first spring is in contact with the arc-shaped guide push plate in a butting way, the other end of the first spring is in, the locking reset plate is close to the linkage driving mechanism and is provided with a wedge-shaped guide block which protrudes out of the surface of the locking reset plate and is laid along the motion direction of the one-way touch element at a position between the linkage driving mechanism and the arc-shaped guide push plate, the distance between an inclined surface of the wedge-shaped guide block and the locking reset plate is gradually reduced from the touch head to the first abutting push rod along the motion direction of the one-way touch element and is finally leveled with the locking reset plate, one end of the arc-shaped guide push plate is in abutting contact with the first spring, and the other end of the arc-shaped guide push plate is in abutting contact with the wedge-shaped guide block.

The technical scheme is further improved and optimized.

The arc guide push pedal one side towards interlock actuating mechanism constitute by first arc line section and second arc line section, first arc line section is close to and touches the head, the second arc line section is close to first push rod that supports, the second arc line section makes the terminal surface of arc guide push pedal and first spring contact transition gently to first arc line section with the mode of gradual lifting, foretell restraint frame that resets includes perpendicular to locking reset plate face interval arrangement backup pad and the connecting plate that is located between two backup pads, the connecting plate on with the position that the second arc line section corresponds the minimum point still set up make the connecting plate transition gently to the regional reset inclined plane between two backup pads.

The technical scheme is further improved and optimized.

The anti-theft lock is characterized in that the driving piece moves along the direction perpendicular to the groove width direction of the key slot, the driving piece comprises a sliding block arranged in a guide sliding block in a sliding mode and a connecting sleeve which is fixedly connected with the sliding block, positioned between the one-way touch locking mechanism and the driven locking mechanism and has two hole depths of an anti-theft spring hole with the extending direction perpendicular to the groove width direction, the guide sliding block is provided with a guide groove, the guide sliding block moves along the direction perpendicular to the groove width direction of the key slot, and a driving component for driving the sliding block to move towards the bottom of the mounting groove along the guide direction of the guide groove is.

The technical scheme is further improved and optimized.

The linkage element is coaxially and movably sleeved in the connecting sleeve and can move along the central axis of the connecting sleeve, the third spring is sleeved outside the connecting sleeve, the linkage element comprises a connecting rod matched with the connecting sleeve, a one-way locking element arranged between the one-way touch locking mechanism and the connecting rod and fixedly connected with the connecting rod, a one-way driving mechanism is arranged between the one-way locking element and the one-way touch element, the one-way driving mechanism is a one-way driving rack arranged on the one-way touch element and laid along the movement direction of the one-way touch element and a linkage wedge block arranged on the one-way locking element and meshed with the one-way driving rack, the one-way driving rack can drive the linkage wedge block to move towards the touch head along the length direction of the one-way driving rack, and only when the linkage wedge block moves towards the direction close to the key slot along the length direction of the one-way driving rack, the contact surface of the second push-against rod and the second anti-theft outer marble is coplanar with the boundary, the linkage element further comprises a lifting guide slide rod which is fixedly connected with the linkage wedge block and the extending direction of the lifting guide slide rod is perpendicular to the movement direction of the one-way touch element, the suspension end of the lifting guide slide rod is in sliding contact with the second arc line section when a key is not inserted, the rod body of the lifting guide slide rod and the inclined surface on the wedge-shaped guide block form sliding guide fit, and the locking reset plate is further provided with one-way locking sawteeth which are matched, meshed and locked with the wedge-shaped guide block and are installed along the movement direction of the one-way touch element.

Compared with the prior art, the multi-touch linkage anti-theft mechanism is additionally arranged on the traditional spring lock, the one-way touch locking mechanism needs to be triggered twice at equal intervals along the depth direction of one hole of the anti-theft outer spring hole, and the linkage driving mechanism can drive the contact surface between the driven locking mechanism and the anti-theft outer spring to be coplanar with the boundary, so that the lock is unlocked, the difficulty of the technical unlocking of the lock is greatly increased, and the anti-theft performance of the lock is improved.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is a schematic view of the overall structure of the locking device of the present invention.

Fig. 4 is a schematic view of the overall structure of the trigger switching mechanism when the key is not inserted.

Fig. 5 is a partially enlarged view of a in fig. 4.

Fig. 6 is a schematic view of the multi-touch anti-theft mechanism of the present invention.

Fig. 7 is a schematic structural view of a one-way triggering locking mechanism of the invention.

Fig. 8 is a schematic structural view of a one-way actuating element of the present invention.

Fig. 9 is a schematic structural view of the locking reset plate of the present invention.

Fig. 10 is a schematic structural view of the locking reset mechanism of the invention.

Figure 11 is a schematic view of the structure of the arc-shaped guide push plate of the present invention.

Fig. 12 is a schematic diagram of the cooperation between the interlocking driving mechanism and the driven locking mechanism of the present invention.

Fig. 13 is a schematic diagram of the cooperation between the interlocking driving mechanism and the driven locking mechanism of the present invention.

Fig. 14 is a schematic view of the cooperation between the interlocking driving mechanism and the one-way triggering locking mechanism when the key is not inserted.

Fig. 15 is a schematic view of the entire mechanism for triggering the switching mechanism when a key is inserted.

Fig. 16 is a schematic structural view of a multi-touch anti-theft mechanism when a key is put in.

Fig. 17 is a schematic structural view of a multi-touch linked anti-theft mechanism when a key is put in.

Fig. 18 is a schematic view of the engagement of the lock actuator with the lock cylinder.

Labeled as:

100. packaging the shell; 110. a front panel; 120. a rear panel; 130. a front handle; 140. a rear handle;

200. a lock case; 210. an outer bullet hole; 211. an outer pin; 212. a spring;

300. a lock cylinder; 310. an inner bullet hole; 311. an inner marble;

400. a multi-touch linkage anti-theft mechanism; 410. an anti-theft outer bullet hole I; 411. an anti-theft outer marble I; 412. a first anti-theft marble spring; 420. a second anti-theft outer bullet hole; 421. an anti-theft outer marble II; 422. a second anti-theft marble spring; 430. a one-way touch locking mechanism; 431. a one-way trip element; 431a, a first pushing rod; 431b, a guide restriction slot; 431bb, a unidirectional driving rack; 431c, the touch head; 432. locking the reset mechanism; 432a, a locking reset plate; 432a1, reset restraint frame; 432a2, guide posts; 432a3, reset ramp; 432a4, wedge guide block; 432a5, one-way locking serrations; 432b, a first spring; 432c, an arc-shaped guide push plate; 432c1, first arc segment; 432c2, second arc segment; 440. a driven locking mechanism; 441. a second pushing rod; 442. a guide slider; 442a, a chute; 442b, a guide groove; 442b1, guide bar; 442b2, a second spring; 450. a linkage driving mechanism; 451. a drive member; 451a, a slider; 451b, a connecting sleeve; 452. a linking element; 452a, interlocking wedge blocks; 452b, lifting the guide slide bar; 452c, a connecting rod; 453. a third spring;

500. a locking actuator; 510. locking the actuator; 511. a latch rod; 512. a latch bolt; 513. a linear rack; 514. a fourth spring; 520. a drive member.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.

As shown in fig. 1-18, an anti-theft cylinder lock comprises an enclosure 100 for fixedly installing the lock on a door, a locking device arranged in the enclosure 100 and capable of switching between a closed locking state and an unlocked opening state of the door and a door frame, the locking device comprising a lock housing 200 detachably and fixedly arranged in the door, a cylinder lock core 300 coaxially and rotatably arranged in the lock housing 200 along the thickness direction of the door, and a locking executing mechanism 500 arranged between the lock housing 200 and the cylinder lock core 300 and capable of receiving the driving of the cylinder lock core 300 and switching between the closed locking state and the unlocked opening state of the door and the door frame, in order to overcome the defects that the conventional cylinder lock is easy to open and the like, the locking device of the invention further comprises a multi-contact linkage anti-theft mechanism 400 arranged between the cylinder lock core 300 and the lock housing 200 and used for preventing theft, thereby greatly improving the anti-theft performance of the invention, provides firm guarantee for the property safety of people.

A circular groove matched with the cylindrical lock core 300 is formed in the lock shell 200, a tangent line of a contact surface between the outer circular surface of the cylindrical lock core 300 and the inner circular surface of the circular groove forms a boundary line, under the condition that a key is not inserted into or does not reach a specified position, the cylindrical lock core 300 and the lock shell 200 are in a locking state incapable of relative rotation, a key slot is coaxially formed in the cylindrical lock core 300, a plurality of inner pin holes 310 are formed in the outer circular surface of the cylindrical lock core 300, the inner pin holes extend in a direction perpendicular to the central axis of the cylindrical lock core 300, are uniformly distributed at intervals along the axial direction of the cylindrical lock core 300 and are respectively communicated with the inner cavity of the key slot, outer pin holes 210 which are coaxially arranged with the inner pin holes 310 and are correspondingly communicated are formed in the lock shell 200, an accommodating groove is formed by matching the inner pin holes 310 and the outer pin holes 210, and a pin assembly is installed in, the cylinder assembly may be pushed by a key inserted into the key insertion slot to unlock between the cylinder core 300 and the lock case 200.

The marble component comprises an outer marble 211 and an inner marble 311 which are coaxially movable and are arranged in the accommodating groove in an opposite manner, wherein the outer marble 211 is positioned in the outer marble hole 210, the inner marble 311 is positioned in the inner marble hole 310, a marble spring 212 for pushing the outer marble 211 to move towards the key slot along the depth direction of the accommodating groove is arranged between the outer marble 211 and the outer marble hole 210, a limit block for limiting the inner marble 311 to move towards the key slot along the depth direction of the accommodating groove is arranged between the inner marble 311 and the inner marble hole 310, one end of the inner marble 311 is in contact with the outer marble 211 in a butting manner, the other end of the inner marble 311 extends into the inner cavity of the key slot, when the key is not inserted, the contact surface between the outer marble 211 and the inner marble 311 is in a staggered state with the boundary, at the moment, the next part of the outer marble 211 pushed by the marble spring 212 is positioned in the outer marble hole 210, the other part of the inner marble, at this time, the lock cylinder 300 and the lock case 200 are in a locked state incapable of rotating, when a key is inserted into the key insertion slot and reaches a predetermined position, the key pushes the inner pin 311 to move in a direction away from the key insertion slot along the depth direction of the accommodating slot, further, the inner pin 311 applies a pushing force to the outer pin 211, the pushing force drives the outer pin 211 to move in a direction away from the key insertion slot along the depth direction of the accommodating slot against the elastic force of the pin spring 212, and finally, a contact surface between the outer pin 211 and the inner pin 311 is coplanar with the boundary, at this time, the multi-touch interlock anti-theft mechanism 400 is also in an unlocked state, the lock between the lock cylinder 300 and the lock case 200 is released, the lock cylinder 300 is driven to rotate relative to the lock case 200 by applying a rotating force to the key, and finally, the lock execution mechanism 500 is driven to switch from.

The multi-touch linkage anti-theft mechanism 400 comprises an anti-theft outer marble hole I410 which is arranged on the lock shell 200 and has an extending direction parallel to the central axis of the outer marble hole 211 and an anti-theft outer marble hole II 420 which is arranged parallel to the outer marble hole I at intervals, wherein an anti-theft outer marble I411 which can move along the hole depth direction of the anti-theft outer marble hole I410 and an anti-theft marble spring I412 which can push the anti-theft outer marble I411 to move towards the key slot along the hole depth direction of the anti-theft outer marble hole I410 are movably matched in the anti-theft outer marble hole I410, and an anti-theft outer marble II 421 which can move along the hole depth direction of the anti-theft outer marble hole II 420 and an anti-theft marble spring II 422 which can push the anti-theft outer marble II 421 to move towards the key slot along the hole depth direction of the anti.

The multi-touch linkage anti-theft mechanism 400 further comprises a mounting groove arranged on the cylinder lock core 300, a one-way touch locking mechanism 430 with one end in contact with the first anti-theft outer pin 411 and the other end extending into the inner cavity of the key slot is movably arranged in the mounting groove, a driven locking mechanism 440 with one end in contact with the second anti-theft outer pin 421, and a linkage driving mechanism 450 arranged between the one-way touch locking mechanism 430 and the driven locking mechanism 440 for transmitting driving force, wherein the one-way touch locking mechanism 430 needs to be triggered by two times along the depth direction of the first anti-theft outer pin hole 411, so that the contact surface between the driven locking mechanism 440 and the second anti-theft outer pin 422 can be driven by the linkage driving mechanism 450 to be coplanar with the boundary, and meanwhile, the contact surface between the one-way touch locking mechanism 430 and the first anti-theft outer pin 411 is also in a coplanar state with the boundary, at this time, the multi-touch interlock antitheft mechanism 400 is switched from the locked state to the unlocked state, and the lock between the cylinder core 300 and the lock case 200 is released.

The one-way triggering locking mechanism 430 comprises a one-way triggering element 431 which is movably arranged in the mounting groove and forms sliding guide fit with the cylindrical lock core 300 along the depth direction of the first anti-theft outer pin hole 410, one end of the one-way triggering element 431 is in contact with the first anti-theft outer pin 411 in a butting mode, the other end of the one-way triggering element 431 extends into the inner cavity of the key slot, in order to prevent the one-way triggering element 431 from falling into the key slot when a key is not inserted, a limiting bump for limiting the movement of the one-way triggering element 431 towards the key slot is further arranged on the one-way triggering element 431 at a position close to the key slot, the one-way triggering locking mechanism 430 further comprises an elastic piece which is arranged between the one-way triggering element 431 and the mounting groove and is used for driving the one-way triggering element 431 to move towards the key slot, preferably, the elastic, The other end is contacted with a spring a which is arranged on the one-way touch element 431 in a butting way.

More specifically, the one-way triggering element 431 includes a first pushing rod 431a, a triggering head 431c and a connecting section disposed between the first pushing rod 431a and the triggering head 431c, wherein the first pushing rod 431a is in contact with the first anti-theft outer pin 411, the triggering head 431c extends into the cavity of the key slot, the limiting protrusion is disposed between the triggering head 431c and the connecting section, the protrusion is disposed between the first pushing rod 431a and the connecting section, the spring a is sleeved outside the first pushing rod 431a, the end surface of the connecting section that is engaged with the bottom of the mounting slot is provided with a guiding one-way triggering element 431 that moves along the depth direction of the first anti-theft outer pin 411 and forms a guiding restriction slot 431b in sliding guiding engagement with the first guiding block disposed on the mounting slot, preferably, in order to prevent the one-way triggering element 431 from separating from the mounting slot during the movement, an anti-disengaging mechanism is further arranged between the guiding constraint groove 431b and the first guide block, specifically, the anti-disengaging mechanism is an anti-disengaging groove arranged on the first guide block and an anti-disengaging block arranged on the groove wall of the guiding constraint groove 431b, and the anti-disengaging groove is matched with the anti-disengaging block, so that the one-way touch element 431 can only slide on the first guide block along the hole depth direction of the first anti-theft outer spring hole 411.

The one-way trigger locking mechanism 430 further includes a locking reset mechanism 432 fixedly disposed on the connecting section and disposed opposite to the guiding constraint groove 431b, the locking reset mechanism 432 includes a locking reset plate 432a horizontally and fixedly disposed on the mounting groove, the locking reset plate 432a is provided with a resetting constraint frame 432a1 with a guiding direction perpendicular to the moving direction of the one-way trigger member 431, an arc-shaped guiding push plate 432c is fittingly mounted in the resetting constraint frame 432a1, the locking reset plate 432a is further provided with a driving element for pushing the arc-shaped guiding push plate 432c to move towards the driving mechanism 450 along the guiding direction of the resetting constraint frame 432a1, specifically, the locking reset plate 432a is provided with a guide post 432a2 with a length extending direction parallel to the guiding direction of the resetting constraint frame 432a1, the driving element is coaxially sleeved on the outer circumferential surface of the guide post 432a2 and one end of the driving element is in contact with the arc-shaped guiding push plate 432c, The other end of the first spring 432b is in contact with the locking reset plate 432a, and is used for pushing the arc-shaped guide push plate 432c to move towards the position close to the linkage driving mechanism 450, a wedge-shaped guide block 432a4 which protrudes out of the surface of the locking reset plate 432a and is laid along the movement direction of the one-way trigger 431 is arranged on the position, close to the linkage driving mechanism 450, of the locking reset plate 432a, which is located between the linkage driving mechanism 450 and the arc-shaped guide push plate 432c, the distance between the inclined surface of the wedge-shaped guide block 432a4 and the locking reset plate 432a is gradually reduced from the trigger 431c to the first push rod 431a along the movement direction of the one-way trigger 431 and is finally kept level with the surface of the locking reset plate 432a, one end of the arc-shaped guide push plate 432c is in contact with the first spring 432b, and the other end of the arc-shaped.

As shown in fig. 7, 10 and 11, more specifically, one side of the arc-shaped guiding push plate 432c facing the interlocking driving mechanism 450 is composed of a first arc segment 432c1 and a second arc segment 432c2, specifically, the first arc segment 432c1 is close to the trigger 431c, the second arc segment 432c2 is close to the first push rod 431a, the second arc segment 432c2 makes the end surface of the arc-shaped guiding push plate 432c contacting the first spring 432b gradually approach the interlocking driving mechanism 450 and smoothly transit to the first arc segment 432c1, the reset restricting frame 432a1 includes supporting plates arranged at intervals perpendicular to the plate surface of the locking reset plate 432a and a connecting plate located between the two supporting plates, wherein a reset inclined surface 432a3 is further opened between the supporting plate close to the lowest point of the wedge-shaped guiding block 432a4 and the connecting plate.

As shown in fig. 5, 6, 12, 13, and 17, the driven locking mechanism 440 includes a guiding sliding block 442 movably disposed in the mounting groove, a second pushing rod 441 in contact with the anti-theft outer pin 421 is disposed on the guiding sliding block 442, and the driven locking mechanism 440 further includes a second spring, which is sleeved outside the second pushing rod 441, and has one end fixedly connected to the mounting groove and the other end fixedly connected to the guiding sliding block 442, and is used for pulling the guiding sliding block 442 to move away from the key slot; the guiding sliding block 442 can move along the depth direction of the second anti-theft outer pin hole 420 under the driving of the linkage driving mechanism 450, and when the key is inserted into the key slot and reaches a specified position, the guiding sliding block 442 pushes the second pushing rod 441 to move under the driving of the linkage driving mechanism 450, so that the contact surface between the second pushing rod 441 and the second anti-theft outer pin hole 421 is coplanar with the boundary, and at this time, the locking between the cylinder lock core 300 and the lock case 200 is released.

More specifically, guide sliding block 442 on with mounting groove tank bottom complex terminal surface on seted up direction guide sliding block 442 along the outer bullet hole two 421 hole depth direction motion of theftproof and constitute slide guide complex spout 442a with the second guide block that sets up on the mounting groove, more preferably, in order to prevent that guide sliding block 442 from breaking away from with the mounting groove in the motion process, spout 442b and second guide block between still be provided with stop gear, specifically, stop gear is for setting up the spacing groove on the second guide block and setting up the stopper on spout 442a cell wall, through the cooperation of spacing groove and stopper for guide sliding block 442 only can slide on the second guide block along the hole depth direction of the outer bullet hole two 421 of theftproof.

As shown in fig. 5, 6, 12, 13 and 17, the linking driving mechanism 450 includes a driving member 451 slidably disposed on the guiding sliding block 442, a linking element 452 coaxially movably sleeved on the driving member 451, and a third spring 453 disposed between the driving member 451 and the linking element 452 and used for pushing the linking element 452 to move toward the one-way actuating locking mechanism 430, the driving member 451 moves along a direction perpendicular to a width direction of the key slot, specifically, the driving member 451 includes a sliding block 451a slidably disposed in the guiding sliding block 442 and a connecting sleeve 451b fixedly connected to the sliding block 451a, disposed between the one-way actuating locking mechanism 430 and the driven locking mechanism 440, and extending in a direction perpendicular to two holes 420 of the anti-theft outer spring hole, the guiding sliding block 442 is provided with a guiding groove 442b for moving along a direction perpendicular to the width direction of the key slot, a driving component for driving the sliding block 451a to move towards the bottom of the mounting groove along the guiding direction of the guiding groove 442b is further disposed between the sliding block 451a and the guiding sliding block 442b, and preferably, the driving component is a guiding rod 442b1 disposed between the guiding sliding block 442 and the sliding block 451a and a second spring 442b2 sleeved outside the guiding rod 442b1 for pushing the sliding block 451a to move towards the bottom of the mounting groove along the guiding direction of the guiding groove 442 b.

The linking element 452 is coaxially and movably sleeved inside the connection sleeve 451b and can move along the central axis of the connection sleeve 451b, and the third spring 453 is sleeved outside the connection sleeve 451 b.

The interlocking member 452 comprises a connecting rod 452c matched with the connecting sleeve 451b, a one-way locking member disposed between the one-way triggering locking mechanism 430 and the connecting rod 452c and fixedly connected with the connecting rod 452c, a one-way driving mechanism is disposed between the one-way locking member 430 and the one-way triggering member 431, preferably, the one-way driving mechanism is a one-way driving rack 431bb disposed on the one-way triggering member 431 and laid along the moving direction of the one-way triggering member 431, and an interlocking wedge 452a disposed on the one-way locking member and engaged with the one-way driving rack 431bb, the one-way driving rack 431bb can drive the interlocking wedge 452a to move towards the triggering head 431c along the length direction of the one-way driving rack 431bb, and only when the interlocking wedge 452a moves along the length direction of the one-way driving rack 431bb to the direction close to the key slot by exactly two tooth pitches, the contact surface of the second push rod 441 and the anti-theft outer marble II 421 is coplanar with the boundary line.

The linking element 452 further includes a lifting guide sliding rod 452b fixedly connected to the linking wedge block 452a and extending in a direction perpendicular to the moving direction of the one-way triggering element 431, wherein a suspended end of the lifting guide sliding rod 452b is in sliding contact with the second arc segment when the key is not inserted, and a shaft of the lifting guide sliding rod 452b is in sliding guiding engagement with the inclined surface of the wedge guide block 432a 4.

More specifically, the locking reset plate 432a is further provided with a one-way locking saw tooth 432a5 installed along the moving direction of the one-way activating member 431.

As shown in fig. 4, 5, and 6, when the key is not inserted into the key slot or the key does not reach the predetermined position, the contact surface and the boundary between the inner pin 311 and the outer pin 211 are in a misaligned state, the contact surface and the boundary between the first anti-theft outer pin 411 and the first push rod 431a are in a misaligned state, and the contact surface and the boundary between the second anti-theft outer pin 421 and the second push rod 441 are in a misaligned state, so that the cylinder plug 300 and the lock case 200 are locked in a non-rotatable state.

As shown in fig. 15, 16 and 17, when the key is inserted into the key slot and reaches a predetermined position, the key pushes the inner pin 311 to move away from the key slot along the depth direction of the receiving slot, further, the inner pin 311 applies a pushing force to the outer pin 211, the pushing force drives the outer pin 211 to move away from the key slot along the depth direction of the receiving slot against the elastic force of the pin spring 212, and finally the contact surface between the outer pin 211 and the inner pin 311 is coplanar with the boundary line, the one-way activating element 431 completes the movement of moving away from the key slot along the guiding direction of the guiding restriction slot 431b against the elastic force of the first anti-theft pin spring 412 and the spring a under the pushing of the key, and moves toward the key slot along the guiding direction of the guiding restriction slot 431b by a pitch along the elastic force of the first anti-theft pin spring 412 and the spring a with the continuous insertion of the key, then, the first anti-theft marble spring 412 and the elastic force of the spring a are overcome to move away from the key slot by a tooth pitch along the guiding direction of the guiding restriction groove 431b, finally, the first anti-theft marble spring 412 and the elastic force of the spring a push the key slot by a tooth pitch along the guiding direction of the guiding restriction groove 431b, in the process, the linkage wedge-shaped block 452a overcomes the elastic force of the third spring 453 to move towards the key slot by exactly two tooth pitches along the length direction of the one-way driving rack 531bb under the matching of the one-way driving rack 431bb and the one-way locking saw teeth 432a5, the guiding sliding block 442 slides synchronously, at the moment, the contact surface between the first pushing rod 431a and the first anti-theft outer marble 411 is coplanar with the boundary, the contact surface between the second pushing rod 441 and the second anti-theft outer marble 421 is coplanar with the boundary, the suspended end of the lift guide slide bar 452b moves from the second arc segment 432c2 to the first arc segment 432c1, in the process, the driving member 451 overcomes the elastic force of the third spring 453 and moves along the central axis of the connecting sleeve 451b to the guide slide block 442, and meanwhile, the shaft of the lift guide slide bar 452b moves along the inclined surface of the wedge-shaped guide block 432a4 to approach the trigger 431c, the slide block 451a moves in the guide groove 442b in the direction away from the mounting groove against the elastic force of the second spring 442b2, at this time, the lock between the cylinder core 300 and the lock case 200 is released, the cylinder core 300 is driven to rotate relative to the lock case 200 by applying the rotating force to the key, and finally, the lock actuator 500 is driven to switch from the locked state to the unlocked state; when the key is completely pulled out, the outer pin 211 moves towards the direction close to the key slot along the depth direction of the accommodating groove under the pushing of the pin spring 212, further, the outer pin 211 pushes the inner pin 311 to move towards the direction close to the key slot along the depth direction of the accommodating groove, under the common constraint of the pin spring 212 and the inner pin 311, one part of the outer pin 211 is positioned in the outer pin hole 210, the other part is positioned in the inner pin hole 310, and finally, the contact surface between the inner pin 311 and the outer pin 211 and the boundary are in a dislocation state; during the key extraction process, the one-way trigger 431 is pushed by the key to move away from the key slot by a pitch along the guiding direction of the guiding restriction groove 431b against the elastic force of the anti-theft pin spring 412 and the spring a, then moves closer to the key slot by a pitch along the guiding direction of the guiding restriction groove 431b under the pushing of the anti-theft pin spring 412 and the spring a, then moves away from the key slot by a pitch along the guiding direction of the guiding restriction groove 431b against the elastic force of the anti-theft pin spring 412 and the spring a, and finally moves closer to the key slot by a pitch along the guiding direction of the guiding restriction groove 431b under the pushing of the elastic force of the anti-theft pin spring 412 and the spring a, and during the process, the interlocking wedge 452a moves closer to the key slot along the length direction of the one-way driving rack 531bb under the cooperation of the one-way driving rack 431bb and the one-way locking saw 432a5 And moves exactly two pitches again, at which time, the shaft of the lifting guide slide bar 452b continues to move along the inclined surface of the wedge guide block 432a4 to approach the trigger 431c and moves to the highest point on the inclined surface of the wedge guide block 432a4, at which time, under the action of the inclined surface of the wedge guide block 432a4 and the third spring 453, the lifting guide slide bar 452b moves to the top surface of the arc guide push plate 432c, the shaft of the lifting guide bar 452b is in sliding contact with the top surface of the arc guide push plate 432c, the suspended end of the lifting guide bar 452b is in abutting contact with the connecting plate, the arc guide push plate 432c moves toward the wedge guide block 432a4 in the guiding direction of the reset constraint frame 432a1 and finally abuts against the wedge guide block 432a4 under the urging of the first spring 432b, and at the same time, the lifting guide slide bar 452b also moves to the position where the first arc segment 432c1 is adjacent to the trigger 431c, under the action of the lifting guide slide, the driving member 451 overcomes the elastic force of the third spring 453 to disengage from the one-way locking saw 432a5 and the one-way driving saw 431bb, and at this time, the guiding sliding block 442 moves away from the key slot along the guiding direction of the sliding slot 442a under the traction of the second spring, and further, the guiding sliding block 442 drives the linkage driving mechanism 450 to move synchronously, in the process, the suspended end of the lifting guiding sliding rod 452b slides synchronously in the opening slot formed by the connecting plate and the arc guiding push plate 432c, and when the lifting guiding sliding rod 452b moves to the reset inclined plane 432a3, the second spring 442b2 pushes the sliding block 451a to move towards the mounting slot along the guiding direction of the guiding slot 442b, and further, the driving member 451 is driven to move synchronously by the connecting sleeve 451b, the lifting guiding sliding rod 452b moves synchronously and enters the first arc segment 432c1 of the guiding arc push plate again by the reset inclined plane, finally, the multi-touch anti-theft mechanism 400 is restored to the initial state.

As shown in fig. 3 and 18, the locking actuator 500 includes a driving member 520 coaxially disposed and fixedly connected to the cylinder lock cylinder 300, a locking actuator 510 receiving driving of the driving member 520 and switching between a locking state and an unlocking state of the door body and the door frame, the locking actuator 510 includes a driving section cooperating with the driving member for transmitting driving force, a latch 512 matching with a locking hole opened in the door frame, and a latch rod 511 disposed between the driving section and the latch 512 for connecting the latch 512 and the driving section, wherein a fourth spring 514 is further disposed between the connecting section and the lock housing 200 for pushing the driving section to move in a direction perpendicular to a depth direction of the key slot.

The driving member 520 includes a mounting block which can be driven by the cylinder lock core 300 and rotate around the axis of the mounting block, a transmission mechanism is arranged between the mounting block and the driving section, preferably, the transmission mechanism is a linear rack 513 which is arranged on the driving section and arranged along the direction perpendicular to the depth direction of the key slot, and a semi-circular arch rack which is coaxially and fixedly sleeved outside the mounting block and is engaged with the linear rack 513, in order to enable the lock tongue 512 to freely stretch and retract to complete locking, a smooth transition section is arranged on the semi-circular arch rack, preferably, the smooth transition section is located at the highest point of the semi-circular arch rack, when a door needs to be locked, the lock tongue 512 overcomes the elastic force of the fourth spring 514 under the constraint of the lock hole and moves in the direction perpendicular to the key slot to move away from the lock hole, after the lock tongue 512 enters the lock hole, the lock tongue 512 enters the lock hole under the push of the fourth spring 514 to complete locking between the, after the key is inserted, a rotating force is applied to the key, so that the cylindrical lock cylinder 300 is driven to rotate relative to the lock shell 200, the mounting block is driven to rotate synchronously, the semicircular arch-shaped racks rotate synchronously, the contact surfaces between the semicircular arch-shaped racks and the linear racks 513 are transited to the rack sections through the smooth transition sections and further drive the lock tongue 512 to move towards the direction far away from the lock hole along the direction perpendicular to the key slot, and finally the lock tongue 512 is separated from the lock hole, and at the moment, the locking state between the door body and the door frame is released.

More preferably, the package 100 includes a front panel 110 and a front handle 130 disposed on the door body and facing the outer end surface of the chamber, the package 100 further includes a rear panel 120 disposed on the door body and facing the inner end surface of the chamber, and a rear handle 140 disposed on the mounting block, and the locking device is disposed in the door body and located between the front panel 110 and the rear panel 120.

A locking and unlocking method of an anti-theft spring lock comprises the following steps:

a locked state in which a key is not inserted;

s1: when a key is not inserted into the key slot or the key does not reach a specified position, the contact surface and the boundary between the inner marble 311 and the outer marble 211 are in a staggered state, the contact surface and the boundary between the anti-theft outer marble 411 and the first push rod 431a are in a staggered state, the contact surface and the boundary between the anti-theft outer marble 421 and the second push rod 441 are in a staggered state, and the cylindrical lock core 300 and the lock shell 200 are in a locked state which cannot rotate;

s2: when a door needs to be locked, a pulling force towards the outside is applied to the door body through the front handle 130, the bolt 512 overcomes the elastic force of the fourth spring 514 under the constraint of the lock hole and moves towards the direction far away from the lock hole along the direction vertical to the key slot, and after the bolt 512 enters the lock hole, the bolt 512 enters the lock hole under the pushing of the fourth spring 514 to complete the locking between the door body and the door frame;

(II) unlocking state;

s3: when a key is inserted into the key slot and reaches a specified position, the key pushes the inner pin 311 to move in a direction away from the key slot along the depth direction of the accommodating groove, further, the inner pin 311 applies a thrust force to the outer pin 211, the thrust force drives the outer pin 211 to move in a direction away from the key slot along the depth direction of the accommodating groove by overcoming the elastic force of the pin spring 212, and finally, the contact surface between the outer pin 211 and the inner pin 311 is coplanar with the boundary;

s4: the one-way trip element 431 is pushed by the key to move away from the key slot by a pitch along the guiding direction of the guiding restriction groove 431b against the elastic force of the anti-theft pin spring 412 and the spring a, then moves towards the key slot by a pitch along the guiding direction of the guiding restriction groove 431b under the pushing of the anti-theft pin spring 412 and the spring a, and then moves away from the key slot by a pitch along the guiding direction of the guiding restriction groove 431b against the elastic force of the anti-theft pin spring 412 and the spring a, and finally moves towards the key slot by a pitch along the guiding direction of the guiding restriction groove 431b against the elastic force of the anti-theft pin spring 412 and the spring a, during which the linkage wedge 452a overcomes the elastic force of the third spring 453 and the elastic force of the unidirectional driving rack 431 and the unidirectional locking saw 432a5 to move towards the key slot by a pitch along the length direction of the unidirectional driving rack 531bb When the guide sliding block 442 slides synchronously to move exactly two pitches, the contact surface between the first push rod 431a and the first anti-theft outer pin 411 is coplanar with the boundary, the contact surface between the second push rod 441 and the second anti-theft outer pin 421 is coplanar with the boundary, the suspended end of the lift guide sliding rod 452b moves from the second arc segment 432c2 to the first arc segment 432c1, the driving member 451 moves along the central axis of the connecting sleeve 451b against the elastic force of the third spring 453 toward the guide sliding block 442, and at the same time, the shaft of the lift guide sliding rod 452b moves along the inclined surface of the wedge-shaped guide block 432a4 toward the trigger 431c, the sliding block 451a moves in the guide groove 442b in a direction away from the installation groove against the elastic force of the second spring 442b2, and at this time, the lock between the cylinder lock cylinder 300 and the lock case 200 is released, and the cylinder 300 is rotated relative to the lock case 200 by applying a rotational force to the key, finally, the locking actuator 500 is driven to switch from the locking state to the opening state;

(III) a key pull-out reset stage;

s5: when the key is completely pulled out, the outer pin 211 moves towards the direction close to the key slot along the depth direction of the accommodating groove under the pushing of the pin spring 212, further, the outer pin 211 pushes the inner pin 311 to move towards the direction close to the key slot along the depth direction of the accommodating groove, under the common constraint of the pin spring 212 and the inner pin 311, one part of the outer pin 211 is positioned in the outer pin hole 210, the other part is positioned in the inner pin hole 310, and finally, the contact surface between the inner pin 311 and the outer pin 211 and the boundary are in a dislocation state;

s6: the one-way trigger 431 is pushed by the key to move away from the key slot by a pitch along the guiding direction of the guiding restriction groove 431b against the elastic force of the anti-theft pin spring 412 and the spring a, then moves towards the key slot by a pitch along the guiding direction of the guiding restriction groove 431b under the pushing of the anti-theft pin spring 412 and the elastic force of the spring a, then moves away from the key slot by a pitch along the guiding direction of the guiding restriction groove 431b against the elastic force of the anti-theft pin spring 412 and the spring a, and finally moves towards the key slot by a pitch along the guiding direction of the guiding restriction groove 431b under the pushing of the elastic force of the anti-theft pin spring 412 and the spring a, and in the process, the linkage wedge 452a moves towards the key slot by exactly two pitches along the length direction of the one-way driving rack 531bb under the matching of the one-way driving rack 431 and the one-way locking saw 432a5 At this time, the shaft of the lift guide slide bar 452b continues to move along the inclined surface of the wedge guide block 432a4 to approach the trigger 431c and move to the highest point on the inclined surface of the wedge guide block 432a4, at this time, under the action of the inclined surface of the wedge guide block 432a4 and the third spring 453, the lift guide slide bar 452b moves to the top surface of the arc guide push plate 432c, the shaft of the lift guide bar 452b is in sliding contact with the top surface of the arc guide push plate 432c, the suspended end of the lift guide bar 452b is in abutting contact with the connecting plate, the arc guide push plate 432c moves toward the wedge guide block 432a4 in the guiding direction of the reset constraint frame 432a1 under the urging of the first spring 432b and finally collides with the wedge guide block 432a4, and at the same time, the lift guide slide bar 452b also moves to the position where the first arc segment 432c1 is adjacent to the trigger 431c, and under the action of the lift guide, the driving member 451 overcomes the elastic force of the third spring 453 to disengage from the one-way locking saw 432a5 and the one-way driving saw 431bb, and at this time, the guiding sliding block 442 moves away from the key slot along the guiding direction of the sliding slot 442a under the traction of the second spring, and further, the guiding sliding block 442 drives the linkage driving mechanism 450 to move synchronously, in the process, the suspended end of the lifting guiding sliding rod 452b slides synchronously in the opening slot formed by the connecting plate and the arc guiding push plate 432c, and when the lifting guiding sliding rod 452b moves to the reset inclined plane 432a3, the pushing sliding block 451a of the second spring 442b2 moves towards the mounting slot along the guiding direction of the guiding slot 442b, and further, the driving member 451 is driven to move synchronously by the connecting sleeve 451b, the lifting guiding sliding rod 452b moves synchronously and enters the first arc segment 432c1 of the guiding arc push plate again by the reset inclined plane, finally, the multi-touch anti-theft mechanism 400 is restored to the initial state.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention; various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An anti-theft spring lock is characterized by comprising an encapsulation shell for fixedly and additionally installing a lock on a door body, wherein a locking device capable of switching the door body and a door frame between a closed locking state and an unlocked opening state is arranged in the encapsulation shell;

the linkage driving mechanism comprises a driving piece arranged on the guide sliding block in a sliding manner, a linkage element coaxially and movably sleeved on the driving piece, and a third spring which is arranged between the driving piece and the linkage element and used for pushing the linkage element to move towards the one-way touch locking mechanism;

the one-way touch locking mechanism comprises a one-way touch element which is movably arranged in the mounting groove and forms sliding guide fit with the cylindrical lock core along the depth direction of the anti-theft outer pin hole, one end of the one-way touch element is in contact with the anti-theft outer pin, and the other end of the one-way touch element extends into the inner cavity of the key slot; the elastic piece is a spring a which is coaxially sleeved on the one-way touch element, one end of the elastic piece is in contact with the cylindrical lock cylinder in a butting way, and the other end of the elastic piece is in contact with a bulge arranged on the one-way touch element in a butting way;

the one-way touch element comprises a first push rod, a touch head and a connecting section arranged between the first push rod and the touch head, wherein the first push rod is contacted with the anti-theft outer marble in a butting way, the touch head extends into the inner cavity of the key slot, the limit bump is arranged between the touch head and the connecting section, the bulge is arranged between the first push rod and the connecting section, the spring a is sleeved outside the first push rod, the end surface of the connecting section matched with the bottom of the mounting groove is provided with a guiding one-way touch element which moves along the depth direction of the anti-theft outer bullet hole and forms a guiding restriction groove in sliding guiding matching with a first guiding block arranged on the mounting groove, an anti-disengaging mechanism is also arranged between the guide constraining groove and the first guide block, and the anti-disengaging mechanism is an anti-disengaging groove arranged on the first guide block and an anti-disengaging block arranged on the groove wall of the guide constraining groove;

2. The anti-theft pin tumbler lock according to claim 1, wherein the pin tumbler component comprises an outer pin tumbler and an inner pin tumbler which are coaxially movable and arranged in the accommodating groove in an opposite manner, wherein one part of the outer pin tumbler is positioned in the outer pin tumbler hole, the other part of the outer pin tumbler is positioned in the inner pin tumbler hole, the inner pin tumbler is positioned in the inner pin tumbler hole, a pin tumbler spring for pushing the outer pin tumbler to move towards the key slot along the depth direction of the accommodating groove is arranged between the outer pin tumbler and the outer pin tumbler hole, a limiting block for limiting the inner pin tumbler to move towards the key slot along the depth direction of the accommodating groove is arranged between the inner pin tumbler and the inner pin tumbler hole, one end of the inner pin tumbler is in contact with the outer pin tumbler in a butting manner.

3. The anti-theft tumbler lock according to claim 2, wherein the side of the arc-shaped guide push plate facing the interlocking drive mechanism is composed of a first arc segment and a second arc segment, the first arc segment is close to the trigger, the second arc segment is close to the first push rod, the second arc segment enables the end surface of the arc-shaped guide push plate contacting the first spring to be gently transited to the first arc segment in a gradual lifting manner, the reset constraint frame comprises support plates arranged at intervals perpendicular to the surface of the locking reset plate and a connecting plate located between the two support plates, and a reset slope enabling the connecting plate to be gently transited to the region between the two support plates is further formed at the position of the connecting plate corresponding to the lowest point of the second arc segment.

4. The anti-theft cylinder lock according to claim 3, wherein the driving member moves in a direction perpendicular to the width of the key slot, the driving member comprises a slider slidably disposed in the guiding slider and a connecting sleeve fixedly connected to the slider and disposed between the one-way actuating locking mechanism and the driven locking mechanism, and extending in a direction perpendicular to the depth of the two holes of the anti-theft outer cylinder hole, the guiding slider is provided with a guiding slot for the guiding slider to move in a direction perpendicular to the width of the key slot, and a driving member for driving the slider to move in a direction of the guiding slot to a position close to the bottom of the mounting slot is further disposed between the slider and the guiding slider.

5. The anti-theft marble lockset as recited in claim 4, wherein said linking member is coaxially and movably sleeved inside the connecting sleeve and movable along the central axis of the connecting sleeve, said third spring is sleeved outside the connecting sleeve, said linking member comprises a connecting rod matching with the connecting sleeve, a one-way locking member disposed between the one-way triggering locking mechanism and the connecting rod and fixedly connected with the connecting rod, a one-way driving mechanism is disposed between the one-way locking member and said one-way triggering member, the one-way driving mechanism is a one-way driving rack disposed on the one-way triggering member and laid along the moving direction of the one-way triggering member, and a linking wedge disposed on the one-way locking member and engaged with the one-way driving rack, the one-way driving rack can unidirectionally drive the wedge linking block to move toward the triggering head along the length direction of the one-way driving rack, and only when the linkage wedge block moves to the direction close to the key slot along the length direction of the one-way driving rack by exactly two tooth pitches, the contact surface of the second push rod and the anti-theft outer marble II is coplanar with the boundary, the linkage element further comprises a lifting guide slide rod which is fixedly connected with the linkage wedge block and the extending direction of which is vertical to the movement direction of the one-way touch element, wherein the suspension end of the lifting guide slide rod is in sliding contact with the second arc segment when the key is not inserted, the rod body of the lifting guide slide rod and the inclined surface on the wedge guide block form sliding guide fit, and the locking reset plate is further provided with one-way locking sawteeth which are matched, meshed and locked with the wedge guide block and are installed along the movement direction of the one-way touch element.