CN114525973A

CN114525973A - Anti-damage intelligent lock

Info

Publication number: CN114525973A
Application number: CN202210325300.1A
Authority: CN
Inventors: 姚成国
Original assignee: Shenzhen Newabel Electronic Co ltd
Current assignee: Shenzhen Newabel Electronic Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-05-24
Anticipated expiration: 2042-03-29
Also published as: CN114525973B

Abstract

The invention discloses an anti-damage intelligent lockset, which comprises a door frame and a door body which are matched with each other through a switch, wherein a lock groove is formed in the inner side of the door frame, a lock shell is installed in the door body, the inner wall of the lock shell is elastically connected with a sliding shaft in the vertical direction, the sliding shaft is rotatably connected with a plurality of unlocking gears through bearings, two sides of each unlocking gear and the sliding shaft form a groove, a clockwork spring is connected between the sliding shaft and each unlocking gear inside and outside the groove, and the upper ends of the unlocking gears are meshed with a toothed arc plate together. According to the invention, through the matching use of the fingerprint identification device and the key piece, the tooth arc plate is separated from the unlocking gears in a logic sequence, the light holes in the unlocking gears are aligned or the movable conductive blocks are contacted with the convex plate, the lock tongue is driven to move by the power mechanism in the unlocking execution mechanism, the lock groove is matched for unlocking or locking, the electronic lock and the mechanical lock are combined together, the fingerprint and the key are subjected to double authentication, and the safety is improved.

Description

Anti-damage intelligent lock

Technical Field

The invention relates to the technical field of locks, in particular to an anti-damage intelligent lock.

Background

The most common type of existing lock is a cylinder lock, which is based on the principle that a plurality of cylindrical parts (called bolts, balls or balls) with different heights are used to lock a lock cylinder, and when a correct key is inserted into a key hole to push the cylindrical parts to the same height, the lock cylinder can be rotated to open. The spring lock has a simple structure, and a thief often unlocks the lock in an improper mode, wherein the unlocking mode comprises probe unlocking, violent unlocking and the like, and the violent unlocking is realized by inserting a chisel and a flat drill into a key hole and forcibly twisting the chisel and a lock cylinder so as to break the locking of a bolt between the lock cylinder and a lock shell and cause torsional damage.

The existing lock is an electronic lock or a mechanical lock, and the existing lock is lack of a function of combining the electronic lock and the mechanical lock together to prevent from protecting property and preventing the lock from being damaged.

To this end, we propose a tamper-proof intelligent lock to solve the above problems.

Disclosure of Invention

The invention aims to provide an anti-damage intelligent lock to solve the problems in the background art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a damage-proof intelligent lock comprises a door frame and a door body which are matched with each other through a switch, wherein a lock groove is formed in the inner side of the door frame, a lock shell is installed in the door body, the inner wall of the lock shell is elastically connected with a sliding shaft in the vertical direction, the sliding shaft is rotatably connected with a plurality of unlocking gears through a bearing, two sides of each unlocking gear and the sliding shaft form a groove, the sliding shaft and each unlocking gear are connected with a clockwork spring inside and outside the groove, the upper ends of the unlocking gears are jointly meshed with a tooth arc plate, the upper end of the lock shell is fixedly connected with a central plate above the tooth arc plate, the lower end of the central plate is provided with a swing groove, a fixed rod which is arc-shaped when observed laterally is fixedly connected in the swing groove, a swing cylinder is sleeved outside the fixed rod in a sliding mode, third springs are fixedly connected to the front side and the rear side of the swing cylinder, and a second trigger is fixedly installed on the outer wall of the fixed rod, the second trigger part is electrically connected with an alarm device, the inner top end of the swing cylinder is fixedly connected with a second spring, the lower end of the second spring is fixedly connected with a limiting rod, the limiting rod is of a T-shaped structure, the lower end of the limiting rod penetrates through the swing cylinder and is fixedly connected with the arc toothed plate, an electromagnetic device is fixedly mounted at the inner top end of the swing cylinder and on the inner side of the second spring, the electromagnetic device is magnetically matched with the limiting rod, a plurality of unlocking gears are connected with unlocking induction mechanisms, the unlocking induction mechanisms are connected with key parts, each key part comprises unlocking toothed plates matched with the unlocking gears one by one, and one sides of the unlocking toothed plates are fixedly connected with key handles together; the unlocking induction mechanism is connected with an unlocking execution mechanism.

Preferably, the tip of sliding shaft is square structure, lock shell inner wall set up with sliding shaft sliding connection's spacing groove, the common fixedly connected with first spring in sliding shaft and the spacing groove, the interior top of spacing groove and in the inboard fixed mounting of first spring have first trigger, first trigger and alarm device electric connection.

Preferably, the unlocking sensing mechanism comprises a laser transmitter and a laser receiver which are respectively and symmetrically fixedly connected to the inner walls of the two sides of the lock shell, the laser transmitter and the laser receiver are electrically connected with a controller, each unlocking gear is provided with a light ray hole, and the lateral projections of the light ray holes are positioned on the same circular track with the axis of the sliding shaft as the center of a circle; the unlocking gears are different in diameter and thickness, and the unlocking gear teeth are different in length, different in longitudinal width and different in transverse width.

Preferably, unblock response mechanism includes the mounting panel that sets up in the left side of each unblock gear, and mounting panel and lock shell inner wall fixed connection, one side fixedly connected with flange that the mounting panel is close to the unblock gear, there are two conductive contacts through wire electric connection in the flange, one side fixedly connected with that the unblock gear is close to the flange moves the conducting block, it is in and uses the sliding shaft axis as the same circular orbit in centre of a circle with being located its left flange to move the conducting block, and is a plurality of move among the unblock gear and be in and use the sliding shaft axis as the different circular orbit in centre of a circle.

Preferably, the unlocking execution mechanism comprises a guide rod fixed on the inner wall of the left side of the lock shell, a lock tongue is sleeved outside the guide rod, one end of the lock tongue penetrates through the lock shell and is matched with the lock groove in a locking mode, and the lower end of the lock tongue is connected with a power mechanism.

Preferably, power unit is including rotating the pivot of connection inner wall around the lock shell, coaxial fixedly connected with rotary gear and worm wheel forward in the pivot from the back, the lower extreme of spring bolt is equipped with the teeth of a cogwheel district with rotary gear meshing, the lock shell around the inner wall and at two fixed plates of below fixedly connected with of spring bolt, two rotate between the fixed plate and be connected with the worm with worm wheel meshing, one of them one side fixed mounting of fixed plate has the motor that just reverses that is used for driving the worm.

Preferably, the front of the lock shell is fixedly connected with a handle, and a fingerprint identification device is embedded in the front of the handle.

Preferably, a key slot is formed in the front face of the lock shell and below the unlocking toothed plate.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, through the matching use of the fingerprint identification device and the key piece, the tooth arc plate is separated from the unlocking gears in a logic sequence, the light holes in the unlocking gears are aligned or the movable conductive blocks are contacted with the convex plate, the lock tongue is driven to move by the power mechanism in the unlocking execution mechanism, the lock groove is matched for unlocking or locking, the electronic lock and the mechanical lock are combined together, the fingerprint and the key are subjected to double authentication, and the safety is improved.

2. According to the invention, a certain free space is set in the circumferential direction and the vertical direction through the unlocking gear, the first trigger piece and the second trigger piece are triggered before a thief conducts tentative unlocking and destructive behaviors, and the alarm device deters the behavior so as to stop the behaviors.

Drawings

FIG. 1 is a schematic three-dimensional structure of an intelligent anti-damage lock according to the present invention;

FIG. 2 is a front view of the intelligent lock 1 according to the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is an enlarged view of the structure at B in FIG. 2;

FIG. 5 is a schematic side view perspective structure of a fixing rod;

fig. 6 is a schematic structural view of a three-dimensional structure of a joint of an unlocking gear, a tooth arc plate and an unlocking toothed plate of the intelligent anti-damage lock provided by the invention;

FIG. 7 is a front view of a cross-sectional view of an embodiment 2 of an intelligent anti-tamper lock according to the present invention;

fig. 8 is an enlarged schematic view of the structure at C in fig. 7.

In the figure: 1 door frame, 2 lock cases, 3 center plates, 4 sliding shafts, 5 unlocking gears, 6 clockwork springs, 7 limiting grooves, 8 first springs, 9 first triggering parts, 10 laser transmitters, 11 laser receivers, 12 light ray holes, 13 tooth arc plates, 14 limiting rods, 15 swinging cylinders, 16 electromagnetic devices, 17 second springs, 18 swinging grooves, 19 fixing rods, 20 third springs, 21 second triggering parts, 22 guide rods, 23 locking tongues, 24 rotating gears, 25 worm wheels, 26 worms, 27 fixing plates, 28 forward and reverse rotating motors, 29 locking grooves, 30 handles, 31 movable conductive blocks, 32 fingerprint identification devices, 33 key grooves, 34 unlocking toothed plates, 35 key handles, 36 mounting plates, 37 convex plates and 38 conductive contacts.

Detailed Description

The technical solutions in the embodiments of the present invention will be 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 of the embodiments.

Example 1

Referring to fig. 1-6, a prevent destroying intelligent tool to lock, including switch complex door frame 1 and the door body, locked groove 29 has been seted up to door frame 1 inboard, install lock shell 2 in the door body, lock shell 2 inner wall elastic connection has sliding shaft 4 in vertical direction, the tip of sliding shaft 4 is square structure, lock shell 2 inner wall is seted up with sliding shaft 4 sliding connection's spacing groove 7, sliding shaft 4 is spacing to slide in spacing groove 7, sliding shaft 4 and the common fixedly connected with first spring 8 of the interior top of spacing groove 7, the interior top of spacing groove 7 and in the inboard fixed mounting of first spring 8 have first trigger 9, first trigger 9 and alarm device electric connection, alarm device is audible-visual annunciator among the prior art, can install in lock shell 2 and user's department of living as required.

The sliding shaft 4 is rotatably connected with a plurality of unlocking gears 5 through bearings, grooves are formed between the two sides of each unlocking gear 5 and the sliding shaft 4, a clockwork spring 6 is connected between the sliding shaft 4 and each unlocking gear 5 inside and outside the grooves, and the clockwork spring 6 enables the unlocking gears 5 to automatically rotate after being twisted for a certain angle.

The upper ends of the unlocking gears 5 are meshed with a toothed arc plate 13 together, the upper end of the lock shell 2 is fixedly connected with a central plate 3 above the toothed arc plate 13, the lower end of the central plate 3 is provided with a swing groove 18, a fixing rod 19 which is arc-shaped when viewed from the side is fixedly connected in the swing groove 18, a swing barrel 15 is sleeved outside the fixing rod 19 in a sliding mode, third springs 20 are fixedly connected to the front side and the rear side of the swing barrel 15 respectively, a second trigger 21 is fixedly mounted on the outer wall of the fixing rod 19, the second trigger 21 is electrically connected with an alarm device, the swing barrel 15 can slide on the fixing rod 19, the third springs 20 can reset the swing barrel 15, the second trigger 21 is preferably arranged before the third springs 20 compress to an extreme amount, and the other first trigger 9 is preferably arranged before the first springs 8 compress to the extreme amount.

Swing a section of thick bamboo 15's interior top fixedly connected with second spring 17, second spring 17's lower extreme fixedly connected with gag lever post 14, and gag lever post 14 is T type structure, gag lever post 14's lower extreme run through swing a section of thick bamboo 15 and with toothed arc board 13 fixed connection, swing a section of thick bamboo 15's interior top and at the inboard fixed mounting of second spring 17 have electromagnetic means 16, electromagnetic means 16 and gag lever post 14 magnetic fit, gag lever post 14 adopts magnetic material to make promptly, other connection structure adopts non-ferromagnetic material to make.

The unlocking gears 5 are connected with an unlocking induction mechanism, specifically, the unlocking induction mechanism comprises a laser emitter 10 and a laser receiver 11 which are respectively and symmetrically and fixedly connected to the inner walls of the two sides of the lock shell 2, and the laser emitter 10 and the laser receiver 11 are electrically connected with a controller, so that the electricity utilization components in the unlocking mechanism are common products in the prior art, each unlocking gear 5 is provided with a light ray hole 12, and the lateral projections of the light ray holes 12 are positioned on the same circular track with the axis of the sliding shaft 4 as the center of a circle; the diameters of the unlocking gears 5 are different, the thicknesses of the unlocking gears are different, correspondingly, the lengths of the gear teeth of the unlocking toothed plates 34 are different, the longitudinal widths of the gear teeth are different, the transverse widths of the gear teeth are different, and the lockset can be specifically designed according to needs.

The unlocking induction mechanism is connected with a key piece, specifically, the key piece comprises an unlocking toothed plate 34 which is matched with the unlocking gears 5 one by one for use, the unlocking toothed plate 34 is sequentially meshed with the unlocking gears 5 at corresponding positions in a non-simultaneous meshing mode, a key handle 35 is fixedly connected to one side of the unlocking toothed plates 34, and a key groove 33 is formed in the front of the lock shell 2 and below the unlocking toothed plate 34.

Unblock response mechanism is connected with unblock actuating mechanism, and is concrete, and unblock actuating mechanism is including fixing the guide bar 22 at lock shell 2 left side inner wall, and the guide bar 22 overcoat is equipped with spring bolt 23, carries out the horizontal direction to spring bolt 23, and the one end of spring bolt 23 run through lock shell 2 and with the locked cooperation of groove 29 lock, and the lower extreme of spring bolt 23 is connected with power unit.

More specifically, the power mechanism comprises a rotating shaft which is rotatably connected to the front inner wall and the rear inner wall of the lock case 2, the rotating shaft is coaxially and fixedly connected with a rotating gear 24 and a worm wheel 25 from back to front, a gear tooth area meshed with the rotating gear 24 is arranged at the lower end of the lock tongue 23, two fixing plates 27 are fixedly connected to the front inner wall and the rear inner wall of the lock case 2 and below the lock tongue 23, a worm 26 meshed with the worm wheel 25 is rotatably connected between the two fixing plates 27, a forward and reverse motor 28 used for driving the worm 26 is fixedly installed on one side of one of the fixing plates 27, the forward and reverse motor 28 transmits torque to the rotating gear 24 through the worm 26 and the worm wheel 25 which are meshed with each other, and the rotating gear 24 drives the lock tongue 23 to move horizontally through the gear tooth area, and the power mechanism can also be formed by adopting other types of structures capable of driving the lock tongue 23 to move horizontally.

The front of lock shell 2 is fixedly connected with handle 30, and the front of handle 30 is inlayed and is equipped with fingerprint identification device 32, the fingerprint identification of being convenient for and opening the door.

It should be noted that, in the present invention, the first trigger 9, the second trigger 21, the alarm device, the laser emitter 10, the laser receiver 11, and the electromagnetic device 16 are all electrically connected to the controller, the forward and reverse rotation motor 28 is all electrically connected to the controller, the first trigger 9, the second trigger 21, the laser emitter 10, and the laser receiver 11 are responsible for sending signals to the controller, the alarm device, the electromagnetic device 16, and the forward and reverse rotation motor 28 are all directly controlled by the controller, and specifically, the on-off and on-off sequence of each electrical device and the driving direction of the forward and reverse rotation motor 28 can be implemented by programming, and the following description omits the description of the controller.

When the lock is in a locking state, the lock tongue 23 is in locking connection and matching with the lock groove 29, the electromagnetic device 16 is in a power-off state, and the toothed arc plate 13 and the limiting rod 14 are meshed with the plurality of unlocking gears 5 under the action of self gravity and the elasticity of the second spring 17, so that the unlocking gears 5 cannot rotate.

The correct unlocking steps of the invention are as follows:

firstly, the fingerprint of an unlocking person is identified through the fingerprint identification device 32, if the identification is successful, the electromagnetic device 16 is powered on and generates magnetic attraction force on the limiting rod 14, the second spring 17 is compressed, the tooth arc plate 13 is driven to ascend through the limiting rod 14, and the position locking of each unlocking gear 5 is released;

secondly, each unlocking gear 5 maintains the position relative to the sliding shaft 4 under the elastic force of the spring 6, and the light ray holes 12 in each unlocking gear 5 are staggered with each other, so that the laser ray emitted by the laser emitter 10 is blocked, and the laser receiver 11 cannot receive the laser ray;

thirdly, correspondingly inserting the unlocking toothed plates 34 in the key piece into the key slot 33, wherein the unlocking toothed plates 34 at all positions are sequentially meshed with the unlocking gears 5 at corresponding positions, the unlocking gears 5 are driven to rotate sequentially under the meshing action, and the light ray holes 12 in the unlocking gears 5 sequentially reach the axial positions of the laser transmitter 10 and the laser receiver 11 until the laser receiver 11 receives the laser rays emitted by the laser transmitter 10;

fourthly, a power mechanism in the unlocking execution mechanism drives the lock tongue 23 to move leftwards and separate from the lock groove 29, so that unlocking action is realized;

fifthly, when a user needs to lock, after aligning the door body with the door frame 1, pulling out the key piece, enabling each unlocking gear 5 to reset under the twisting force of the spring 6, powering off the electromagnetic device 16, and after the light holes 12 in each unlocking gear 5 are dislocated, driving the lock tongue 23 to move rightwards by the power mechanism in the unlocking execution mechanism to be locked with the lock groove 29, so as to realize the locking action.

The important point is that: when the key is unlocked, the key piece can not be pulled out, so that the key is particularly suitable for the instant unlocking and locking scene.

The anti-destruction measures of the invention are as follows:

in a locking state, because the unlocking gears 5 have different diameters, different thicknesses and different corresponding lengths of the gear teeth of the unlocking toothed plates 34, different longitudinal widths and different transverse widths, each lock is suitable for corresponding types of key pieces, when a thief performs tentative unlocking or picks and dials through the key slot 33, the unlocking gear 5 has a free space in a certain range in the circumferential direction and the vertical direction, and in the course of doing so, the unlocking gear 5 drives the swing cylinder 15 to swing along the direction of the fixed rod 19 through the tooth arc plate 13 and the limiting rod 14, so as to compress the third spring 20, automatically give an alarm when the swing cylinder 15 contacts the second trigger 21, and drives the sliding shaft 4 to compress the first spring 8 upwards through the unlocking gear 5, and automatically give an alarm when the sliding shaft 4 contacts the first trigger 9, effectively stopping destructive behavior.

Example 2

Referring to fig. 7 to 8, the present embodiment is different from embodiment 1 in that: specifically, unblock response mechanism includes the mounting panel 36 that sets up in the left side of each unblock gear 5, and mounting panel 36 and lock shell 2 inner wall fixed connection, one side fixedly connected with flange 37 that mounting panel 36 is close to unblock gear 5, there are two conductive contact 38 through wire electric connection in the flange 37, one side fixedly connected with that unblock gear 5 is close to flange 37 moves conductive block 31, move conductive block 31 and be located its left flange 37 and be located on using 4 axes of slide shaft as the same circular orbit in centre of a circle, move conductive block 31 in a plurality of unblock gears 5 and be in using 4 axes of slide shaft as different circular orbits in the centre of a circle.

The pairs of conductive contacts 38 are connected in series to the same circuit, and whether or not the movable conductive block 31 on the side of each unlocking gear 5 has reached the corresponding position of the protruding plate 37 is determined by turning on and off the circuit.

The present embodiment is different from embodiment 1 in that: the cam 37 and the two conductive contacts 38 can be arranged at different positions with respect to the unlocking gear 5, thus making it easier to vary the diameter of the unlocking gear 5, increasing the design, and it should also be noted that the diameter of the unlocking gear 5 cannot be too small or too large to affect the size of the key slot 33 and the size of the lock housing 2.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a prevent destroying intelligent lockset, includes switch complex door frame (1) and the door body, locked groove (29), its characterized in that have been seted up to door frame (1) inboard: a lock shell (2) is installed in the door body, a sliding shaft (4) is elastically connected to the inner wall of the lock shell (2) in the vertical direction, a plurality of unlocking gears (5) are rotatably connected to the sliding shaft (4) through bearings, grooves are formed between the two sides of each unlocking gear (5) and the sliding shaft (4), a clockwork spring (6) is connected to the inside and the outside of each groove of each sliding shaft (4) and each unlocking gear (5), the upper ends of the unlocking gears (5) are meshed with a tooth arc plate (13) together, a central plate (3) is fixedly connected to the upper end of the lock shell (2) above the tooth arc plate (13), a swing groove (18) is formed in the lower end of the central plate (3), a fixing rod (19) which is arc-shaped when the side direction is observed is fixedly connected to the inside of the swing groove (18), a swing barrel (15) is sleeved outside the fixing rod (19) in a sliding manner, third springs (20) are fixedly connected to the front side and the back side of the swing barrel (15), and a second trigger piece (21) is fixedly installed on the outer wall of the fixing rod (19), the second trigger piece (21) is electrically connected with an alarm device, a second spring (17) is fixedly connected to the inner top end of the swing barrel (15), a limiting rod (14) is fixedly connected to the lower end of the second spring (17), the limiting rod (14) is of a T-shaped structure, the lower end of the limiting rod (14) penetrates through the swing barrel (15) and is fixedly connected with the tooth arc plate (13), an electromagnetic device (16) is fixedly installed at the inner top end of the swing barrel (15) and on the inner side of the second spring (17), the electromagnetic device (16) is in magnetic fit with the limiting rod (14), a plurality of unlocking gears (5) are connected with unlocking induction mechanisms, the unlocking induction mechanisms are connected with key pieces, each key piece comprises an unlocking toothed plate (34) which is matched with the unlocking gears (5) one by one, one sides of the unlocking toothed plates (34) are fixedly connected with a key handle (35) together; the unlocking induction mechanism is connected with an unlocking execution mechanism.

2. The intelligent damage-prevention lockset of claim 1, wherein: the tip of sliding shaft (4) is square structure, lock shell (2) inner wall set up with sliding shaft (4) sliding connection's spacing groove (7), sliding shaft (4) and the first spring (8) of the common fixedly connected with in top of spacing groove (7), the interior top of spacing groove (7) and the inboard fixed mounting of first spring (8) have first trigger (9), first trigger (9) and alarm device electric connection.

3. The intelligent damage-prevention lockset of claim 1, wherein: the unlocking induction mechanism comprises a laser transmitter (10) and a laser receiver (11) which are respectively and symmetrically and fixedly connected to the inner walls of the two sides of the lock shell (2), the laser transmitter (10) and the laser receiver (11) are electrically connected with a controller, each unlocking gear (5) is provided with a light ray hole (12), and the lateral projections of the light ray holes (12) are positioned on the same circular track with the axis of the sliding shaft (4) as the center of a circle;

the diameters and the thicknesses of the unlocking gears (5) are different, the lengths of gear teeth of the unlocking toothed plates (34) are different, the longitudinal widths are different, and the transverse widths are different.

4. The intelligent damage-prevention lockset of claim 1, wherein: unblock response mechanism includes mounting panel (36) that sets up in the left side of each unblock gear (5), and mounting panel (36) and lock shell (2) inner wall fixed connection, one side fixedly connected with flange (37) that mounting panel (36) are close to unblock gear (5), there are two conductive contact (38) through wire electric connection in flange (37), one side fixedly connected with that unblock gear (5) are close to flange (37) moves conducting block (31), it is a plurality of on being in to use sliding shaft (4) axis as the same circular orbit in the centre of a circle with being located its left flange (37) to move conducting block (31) in unblock gear (5) move conducting block (31) and be in to use sliding shaft (4) axis as the different circular orbit in the centre of a circle.

5. The intelligent damage-prevention lockset of claim 1, wherein: the unlocking execution mechanism comprises a guide rod (22) fixed on the inner wall of the left side of the lock shell (2), a bolt (23) is sleeved outside the guide rod (22), one end of the bolt (23) penetrates through the lock shell (2) and is matched with a lock groove (29) in a locking mode, and the lower end of the bolt (23) is connected with a power mechanism.

6. The intelligent damage-prevention lockset of claim 5 wherein: power unit is including rotating the pivot of connecting inner wall around lock shell (2), pivot coaxial fixedly connected with swing pinion (24) and worm wheel (25) forward from the back, the lower extreme of spring bolt (23) is equipped with the wheel tooth area with swing pinion (24) meshing, lock shell (2) around the inner wall and in two fixed plates (27) of below fixedly connected with of spring bolt (23), two rotate between fixed plate (27) and be connected with worm (26) with worm wheel (25) meshing, one of them one side fixed mounting of fixed plate (27) has motor (28) just reversing that is used for driving worm (26).

7. The intelligent damage-prevention lockset of claim 1, wherein: the front of the lock shell (2) is fixedly connected with a handle (30), and a fingerprint identification device (32) is embedded in the front of the handle (30).

8. The intelligent damage-prevention lockset of claim 1, wherein: a key slot (33) is formed in the front face of the lock shell (2) and below the unlocking toothed plate (34).