CN111364845A

CN111364845A - Intelligent lockset

Info

Publication number: CN111364845A
Application number: CN201910317405.0A
Authority: CN
Inventors: 闵朝辉; 杨勇
Original assignee: Suzhou Joban Technologies Co ltd
Current assignee: Suzhou Joban Technologies Co ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2020-07-03

Abstract

The invention provides an intelligent lockset, which comprises a lock shell, a lock tongue and a lock tongue driving mechanism, wherein the lock tongue comprises a main lock tongue component, a lock tongue touching component and an oblique lock tongue component; the lock tongue driving mechanism comprises a shifting wheel, a shifting fork, a square shaft shifting piece, a driving motor and a rotating handle which are sequentially connected, the main lock tongue is controlled to stretch by the shifting wheel, and the shifting wheel can be driven by the motor, the square shaft shifting piece or a key; the safety bolt assembly can be driven to be locked through a mechanical manual knob, the door cannot be unlocked, and all the bolts can be mechanically unlocked in one step through a handle rotating shaft in the door; through the combination of automatic unblock and mechanical unlocking, can unblank, also can realize the switch lock through the mode that key drive thumb wheel, handle drive square shaft plectrum through modes such as fingerprint, face identification, card automatically, more be applicable to the requirement of high performance intelligence lock, promote the tool to lock reliability.

Description

Intelligent lockset

Technical Field

The invention relates to the technical field of intelligent door locks, in particular to an intelligent lockset.

Background

In the prior art, in the field of intelligent door locks, the traditional mechanical lock body is generally used, or the electronic lock body of a motor clutch mechanism is simply added, so that the functional requirements of people on the intelligent door lock are difficult to meet.

The performance of the lock body serving as a core part of the door lock is good or bad, the overall performance of the door lock is directly related to the quality of the overall performance of the door lock, actual benefits and use experience of users are further influenced, the traditional mechanical lock body and the traditional electronic clutch lock body obviously cannot meet the requirement of high performance of the intelligent door lock, high failure rate caused by low reliability of the traditional mechanical lock body and the traditional electronic clutch lock body is always the cause of the problem of the market, the manufacturing cost is not low, and the high after-sale maintenance cost causes the problem that a lot of manufacturers and users feel too much. Therefore, developing an intelligent door lock with high reliability and reduced maintenance cost is a hot issue of research in the industry at present.

Disclosure of Invention

The invention provides an intelligent lockset which has high reliability, precise transmission structure, low noise, difficult damage and relatively low after-sale maintenance cost.

In order to solve the prior art problems, the invention provides an intelligent lockset, which comprises a lock shell, a lock tongue and a lock tongue driving control mechanism, wherein the lock tongue comprises a main lock tongue component, a lock tongue component, an oblique lock tongue component and a safety lock tongue component; the lock tongue driving control mechanism comprises a shifting wheel, a shifting fork, a square shaft shifting piece, a link mechanism and a latch bolt limiting plate which are sequentially connected, wherein the shifting fork is in matched linkage with the square shaft shifting piece; the oblique tongue component comprises an oblique tongue, an oblique tongue supporting plate and a tail spring, wherein a groove is formed in the oblique tongue supporting plate, and the oblique tongue limiting plate can automatically lock the oblique tongue under the action of the torsion spring; the safety tongue assembly comprises a safety tongue, a safety supporting plate, a safety shifting wheel and a linkage control mechanism, wherein the mechanical and manual knob drives the safety shifting wheel to lock, the door cannot be unlocked, and all the lock tongues can be mechanically unlocked in the door in one step through a handle rotating shaft.

Furthermore, a key shaft sleeve is further arranged in the lock shell, a key shifting piece is arranged on the key shaft sleeve, one end of the key shifting piece is connected with the shifting wheel, and the key shifting piece can be driven by the key shaft sleeve and can also be driven by the shifting wheel gear, so that the shifting wheel is driven to move, and the extension and retraction of the main lock tongue and the latch bolt are controlled.

Further, the thumb wheel includes a bar support arm, thumb wheel pivot and cover and establishes the epaxial thumb wheel gear of thumb wheel pivot, the bar support arm with thumb wheel pivot fixed connection, driving motor drive the thumb wheel gear rotates and drives the bar support arm is followed the thumb wheel pivot is rotated, just be equipped with the cylinder boss on the bar support arm, the accessible during the motion of bar support arm the cylinder boss is right the shift fork application of force, thereby the drive shift fork and thumb wheel motion control main spring bolt and oblique tongue stretch out and retract.

Further, the oblique tongue subassembly includes oblique tongue backup pad, oblique tongue and oblique tongue limiting plate, the afterbody of oblique tongue backup pad through a spring with the casing is connected, the oblique tongue can auto-eject under the effect of spring, the bottom of oblique tongue limiting plate is provided with a torsional spring, and it can be under the torsional spring effect automatic locking oblique tongue, just oblique tongue limiting plate with the shift fork reaches and is provided with first link gear between the tongue backup pad, bump the tongue spring one end with bump the tongue backup pad and link to each other main spring bolt unblock or bump under the tongue ejection condition, the automatic unblock can be realized under the effect of first link gear to the oblique tongue limiting plate.

Further, still be provided with a pick-up plate in the casing, the pick-up plate with driving motor electricity is connected, bump one side of tongue backup pad and be equipped with one and bend the arm, the opposite side is equipped with a positioning switch arm, it has the drive effect to oblique tongue limiting plate to bend the arm, positioning switch arm with the pick-up plate contact, when closing the door the positioning switch arm can break away from the pick-up plate, thereby the pick-up plate can send signal control for the mainboard the driving motor action realizes locking automatically.

Furthermore, a limit groove is formed in the tongue-touching supporting plate, the tongue-touching supporting plate can move back and forth in the limit groove, and the bent arms can drive the inclined tongue limiting plate to relieve the limit of the inclined tongue supporting plate.

Furthermore, the lock tongue mechanism also comprises a safety tongue assembly, the safety tongue assembly comprises a safety tongue, a safety shifting wheel and a mechanical manual knob, the mechanical manual knob can manually drive the safety shifting wheel to lock the safety tongue, so that the lock cannot be unlocked outside the door, a second linkage mechanism is arranged between the safety tongue and the square shaft shifting piece, and the square shaft shifting piece can drive the second linkage mechanism to act so as to mechanically unlock all the lock tongues inside the door.

Furthermore, main spring bolt subassembly comprises spring bolt and spring bolt backup pad, be equipped with a fluting in the spring bolt backup pad, the bar support arm can just reverse certain angle of rotation in the fluting, the shift fork also can be around its self center pin at certain angle internal rotation, just be equipped with spacing arch on the thumb wheel gear, spacing arch can restrict the thumb wheel is at certain angle within range motion.

Furthermore, the motor assembly is provided with a reduction gearbox, and output teeth on the reduction gearbox are meshed with the shifting wheel gear, so that the shifting wheel is driven.

Furthermore, a main spring bolt position detection switch, a spring bolt position detection switch and a latch bolt position detection switch are further arranged in the lock shell, the detection switches are all arranged on the detection plate, the spring bolt condition can be fed back to the door lock mainboard by the detection switches in real time, and the spring bolt action and the door lock state information are controlled to be pushed according to a set program.

The invention has the beneficial effects that:

1) according to the technical scheme provided by the invention, two modes of motor automatic driving and manual mechanical driving are arranged in the lock body, and through the combination of automatic unlocking and mechanical unlocking, the automatic unlocking can control the motor to drive the dial wheel to automatically unlock through a main board signal in the modes of fingerprint, face recognition, card and the like, and the mechanical unlocking can realize lock opening and closing through the modes that the dial wheel is driven by the key rotating shaft to unlock and the dial plate is driven by the handle to indirectly drive the dial wheel to unlock, so that the lock is more suitable for the requirement of a high-performance intelligent door lock, and the satisfaction degree of a user is improved on the premise of improving the reliability of the lock;

2) the latch bolt component part of the intelligent lock only gives a signal to a main board when the latch bolt limiting plate limits the latch bolt, the latch bolt position detection switch detects that the latch bolt acts in place, and the main board controls a thumb wheel to drive a main latch bolt to open and close the lock, so that the purpose of successfully locking the main latch bolt in place is ensured, and the damage of the lock caused by collision is avoided;

3) the intelligent lock provided by the invention has the advantages of flexible and reliable structure and precise transmission, can safely cope with emergency unlocking or emergency unlocking, can greatly reduce complaints of customers, and saves the after-sale maintenance cost;

4) the built-in motor driving device is adopted, so that the reliability and the noise of the door lock can be greatly improved, and the use satisfaction of a user is improved.

Drawings

In order to more clearly illustrate the technical solution in the embodiment of the present invention, the drawings used in the description of the embodiment will be briefly introduced below, and it is obvious that the drawings described below are only drawings of a part of the embodiment of the present invention, and it is obvious for a person skilled in the art to obtain other embodiments and drawings according to the following drawings without any inventive work.

Fig. 1 is a schematic view of an internal structure installation of an intelligent lock according to an embodiment of the present invention.

Fig. 2 is a schematic view of a partial structure of a main bolt assembly drive of an intelligent lock according to an embodiment of the present invention.

Fig. 3 is a schematic view of a partial structure of a latch bolt for limiting and unlocking an intelligent lock according to an embodiment of the present invention.

Detailed Description

The technical solution of the intelligent lock provided in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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, which can be derived by a person skilled in the art from the specific embodiments given herein without any inventive step, are within the scope of the present invention.

The intelligent lockset provided by the embodiment has the specific internal structure installation schematic diagram as shown in fig. 1, and comprises a lock shell 22, a lock tongue and a lock tongue driving mechanism, wherein the lock shell 22 is provided with various installation parts, an external interface and a lock tongue hole for the lock tongue to penetrate through, and the lock tongue driving mechanism is arranged inside the lock shell 22 and used for driving the lock tongue to do stretching and retracting actions along the lock tongue hole direction.

The spring bolt includes main spring bolt subassembly, bumps tongue subassembly, oblique tongue subassembly and insurance tongue subassembly 7 (optional), the spring bolt passes through spring bolt panel 9 encapsulation inside lock shell 22, and by spring bolt actuating mechanism drives and fixes a position, spring bolt actuating mechanism includes two kinds of drive methods of manual mechanical drive and motor automatic drive, specifically including setting up thumb wheel 20, shift fork 19 and square shaft plectrum 14 and driving motor subassembly 6 that link to each other in proper order in the lock shell 22 with set up in the outside rotation handle of lock shell 22, the upper portion of thumb wheel 20 is provided with a key axle sleeve 25, specifically as shown in fig. 2, thumb wheel 20 with through the cooperation linkage between the square shaft plectrum 14, promptly shift fork 19 is the bridging piece between thumb wheel 20 and the square shaft plectrum 14.

The lock is characterized in that a detection plate 15 is further arranged in the lock shell 22, a main bolt position detection switch, a bolt collision position detection switch and a latch bolt detection switch are arranged on the detection plate 15, the detection plate 15 is electrically connected with the driving motor 6, the three detection switches and the safety bolt position detection switch 8 can feed back the condition of the bolt to a door lock mainboard in real time, and the bolt action and the information pushing of the door lock state are controlled according to a set program.

The main spring bolt subassembly includes main spring bolt backup pad 5, sets up main spring bolt in the main spring bolt backup pad 5, wherein, be equipped with the fluting on the main spring bolt backup pad 5, main spring bolt can drive and spacing through rotating thumb wheel 20, thumb wheel 20 can be driven by driving motor subassembly 6, also can be driven by rotating handle drive square shaft plectrum 14, also can insert key 25 internal rotation drive by the key. In addition, a notch is formed in the main bolt supporting plate, a central shaft of the shifting fork 19 is arranged in the notch, a V-shaped groove is further formed in one side of the main bolt supporting plate and used for limiting a strip-shaped arm of the shifting wheel 20 to move in the groove to control the extension and retraction of the main bolt, and meanwhile, a limiting protrusion is arranged on the shifting wheel gear 21 and can limit the shifting wheel 20 to move within a certain angle range.

Specifically, the square shaft shifting piece 14 can rotate along the square shaft sleeve 13 of the square shaft shifting piece to drive the shifting fork 19 to move around the central shaft 17 of the shifting fork, so as to drive the shifting wheel 20 to move to control the extension and retraction of the main bolt; the shifting wheel 20 comprises a bar-shaped supporting arm, the bar-shaped supporting arm rotates around a shifting wheel rotating shaft, a shifting wheel gear 21 is sleeved on the shifting wheel rotating shaft, one end of the bar-shaped supporting arm is connected with the shifting fork 19, the other end of the bar-shaped supporting arm is meshed with an output gear of a reduction gearbox on the driving motor 6 through the shifting wheel gear 21, a cylindrical boss is arranged on the bar-shaped supporting arm, the bar-shaped supporting arm is clamped and bridged with the shifting fork 19 through the cylindrical boss during rotation, and therefore the shifting wheel 20 can be indirectly driven to move to realize extension and retraction of a main lock tongue when the square shaft shifting piece 14 moves; a key shaft sleeve 25 is arranged at the upper part of the thumb wheel rotating shaft, a key plectrum 24 is arranged on the key shaft sleeve 25, one end of the key plectrum 24 is connected with the thumb wheel gear 21, the other end of the key plectrum is connected with the thumb wheel 20, the key plectrum 24 can be driven by a key in the key shaft sleeve 25 and can also be driven by the thumb wheel gear 21 to drive the thumb wheel 20 to move, and the extension and retraction of the main lock tongue 5 are controlled; the rotating handle is fixedly connected with the square shaft shifting piece 14, namely, the square shaft shifting piece 14 can be driven to move through manual rotation of the handle, so that the shifting fork 19 is driven to move, and finally the shifting wheel 20 is driven to move to control the extension and retraction of the main bolt 5.

The oblique tongue component comprises an oblique tongue supporting plate 11, an oblique tongue 1 and an oblique tongue limiting plate 10, wherein the oblique tongue 1 and the oblique tongue limiting plate are installed on the oblique tongue supporting plate 11, a limiting groove is formed in the oblique tongue supporting plate 11, the tail of the oblique tongue supporting plate 11 is connected with the lock shell 22 through an oblique tongue spring 12, and the oblique tongue 1 can be automatically ejected out under the action of the oblique tongue spring 12; in addition, a torsion spring is installed at the bottom of the latch bolt limiting plate 10, the latch bolt limiting plate 10 can automatically lock the latch bolt 1 under the action of the torsion spring, and the latch bolt limiting plate 10, the other parts of the shifting fork 19 and the latch bolt supporting plate 3 are mutually provided with a first linkage mechanism 16, as shown in fig. 3, the latch bolt can be automatically unlocked under the condition that the main latch bolt assembly is unlocked or the latch bolt 4 is popped out (an unlocking state); in addition, a slot has also been seted up on the latch bolt backup pad 11, latch bolt spring 12 with the one end that the latch bolt backup pad 11 is connected is fixed in the slot, and the latch bolt 1 can be along the slot is in auto-eject under the effect of latch bolt spring 12, latch bolt limiting plate 10 is installed one side of latch bolt backup pad 11, just latch bolt limiting plate 10 with shift fork 19 and bump and be provided with first link gear 16 between the tongue backup pad 3, specifically as shown in fig. 3, under the main spring bolt unblock or bump under the tongue 4 pops out the condition, promptly when the state of unblanking, latch bolt limiting plate 10 can realize the auto-unlocking of latch bolt 1 under the effect of first link gear 16.

The collision tongue assembly comprises a collision tongue supporting plate 3, a collision tongue spring 2 and a collision tongue 4 arranged on the collision tongue supporting plate 3, wherein the collision tongue spring 2 is arranged at the tail part of the collision tongue supporting plate 3, and the collision tongue 4 can be automatically ejected under the action of the collision tongue spring 2; a limit groove is formed in the tongue-touching support plate 3, a bent arm is arranged on one side of the tongue-touching support plate 3, and a positioning switch arm is arranged on the other side of the tongue-touching support plate, as shown in fig. 3, one end of the bent arm is located in the limit groove, the other end of the bent arm is clamped in a groove of the tongue-slanting support plate 11, and the bent arm can be clamped and separated in the groove by moving back and forth in the limit groove, so that the tongue-slanting limit plate 10 can be locked and unlocked; the positioning switch arm is in contact with the detection plate 15, when the door is closed, the touch tongue 4 retracts into the lock shell 22, the positioning switch arm is separated from the detection plate 15 at the moment and is not in contact with the detection plate, the detection plate 15 receives the signal and then sends the signal to the mainboard, and the mainboard controls the driving motor 6 to realize automatic locking.

In addition, the main spring bolt only when corresponding detection switch detects bump tongue 4 with oblique tongue 1 is in reasonable state, the mainboard can give the signal drive main spring bolt action, detect promptly the spacing state of oblique tongue 1 and bump the stretching out and retracting state of tongue 4, the main purpose of design like this is on the one hand the protection lock avoids receiving the striking damage, and on the other hand can ensure that the main spring bolt can lock in place smoothly.

The lock tongue assembly also comprises a safety tongue assembly 7 which can be selected, the safety tongue assembly 7 comprises a safety tongue, a safety thumb wheel 23 and a mechanical manual knob, in addition, the safety tongue assembly 7 is connected with a safety tongue detection switch 8, the mechanical manual knob protrudes out of the lock shell, and the mechanical manual knob can be manually rotated to drive the safety thumb wheel 23 to lock the safety tongue, so that the lock cannot be unlocked outside the door; further, a second coupling mechanism 18 is provided between the safety tongue and the square shaft dial 14, and as shown in fig. 1 in particular, the safety tongue can be indirectly driven by the second coupling mechanism 18 and the square shaft dial 14 to release the locking operation of all the lock tongues.

The working principle of the intelligent lockset provided by the embodiment specifically comprises:

unlocking outside the door: 1) through verification modes such as fingerprints, face recognition, cards and the like, a main board sends an instruction to the driving motor 6, the driving motor 6 drives a thumb wheel gear 21 to drive a thumb wheel 20 to control the retraction of a main lock tongue, meanwhile, the thumb wheel gear 21 drives a shifting fork 19 and a first linkage mechanism 16 to release the limit on the latch bolt 1, the latch bolt 1 retracts, and after the latch bolt detection switch detects that the latch bolt acts in place, the main lock tongue realizes unlocking action; 2) when the power supply of the battery is insufficient, the battery can be externally connected with a USB (universal serial bus) and the like for power supply unlocking, and can also be unlocked by a key, wherein the key is inserted into the key shaft sleeve 25 for unlocking, and the poking wheel 20 is driven to rotate by the key poking piece 24 to realize unlocking action; 3) when the electronic system of the door lock is in failure, the mechanical unlocking can be carried out by using a key, and the principle is the same as the above.

Locking outside the door: after the door is closed, the latch bolt 4 retracts, the positioning switch arm on the latch bolt supporting plate 3 is separated from the detection plate 15, after the latch bolt detection switch detects that the latch bolt is in place, the mainboard receives a signal and sends an instruction to drive the driving motor 6 to drive the thumb wheel 20 to drive the main latch bolt to automatically lock, after the latch bolt 4 retracts, the bent arm on the side of the latch bolt supporting plate 3 is clamped in the groove of the latch bolt supporting plate 11 to lock the latch bolt limiting plate 10, and the latch bolt is guaranteed to smoothly extend into the latch bolt hole.

Unlocking in the door: the driving motor 6 drives the thumb wheel 20 to unlock automatically, and the handle can also be pushed and pulled to drive the square shaft thumb piece 14 to move so as to unlock all lock tongues.

Locking in the door: the same door outer locking principle.

And (4) emergency unlocking in the door: in any case, the push-pull handle can drive the square shaft shifting piece 14 to move, and all the lock tongues are unlocked.

Mechanical insurance in the door: the function of insurance tongue promptly, the user can select whether to screw on insurance, realizes the locking of all spring bolts for outside the door can't unblank through any mode, unblank and can only pass through the inside push-and-pull handle or relieve insurance earlier and then automatic unblank.

According to the technical scheme provided by the invention, two modes of motor automatic driving and manual mechanical driving are arranged in the lock body, and through the combination of automatic unlocking and mechanical unlocking, the automatic unlocking can control the motor to drive the dial wheel to automatically unlock through a main board signal in the modes of fingerprint, face recognition, card and the like, and the mechanical unlocking can realize lock opening and closing through the modes that the dial wheel is driven by the key rotating shaft to unlock and the dial plate is driven by the handle to indirectly drive the dial wheel to unlock, so that the lock is more suitable for the requirement of a high-performance intelligent door lock, and the satisfaction degree of a user is improved on the premise of improving the reliability of the lock; the latch bolt component part of the intelligent lock only gives a signal to a main board when the latch bolt limiting plate limits the latch bolt, the latch bolt position detection switch detects that the latch bolt acts in place, and the main board controls a thumb wheel to drive a main latch bolt to open and close the lock, so that the purpose of successfully locking the main latch bolt in place is ensured, and the damage of the lock caused by collision is avoided; the intelligent lock provided by the invention has the advantages of flexible and reliable structure and precise transmission, can safely cope with emergency unlocking or emergency unlocking, can greatly reduce complaints of customers, and saves the after-sale maintenance cost; the built-in motor driving device is adopted, so that the reliability and the noise of the door lock can be greatly improved, and the use satisfaction of a user is improved.

The above detailed description is provided for an intelligent lock according to an embodiment of the present invention, and the technical solution of the present invention is described herein by using specific examples, which are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and it should be understood that variations or modifications within the technical scope of the present invention that are conceivable by those skilled in the art should be within the scope of the present invention.

Claims

1. An intelligent lockset comprises a lock shell, a lock tongue and a lock tongue driving control mechanism, wherein the lock tongue comprises a main lock tongue component, a touch tongue component, an oblique tongue component and a safety tongue component; the lock tongue driving control mechanism comprises a shifting wheel, a shifting fork, a square shaft shifting piece, a link mechanism and a latch bolt limiting plate which are sequentially connected, wherein the shifting fork is in matched linkage with the square shaft shifting piece; the oblique tongue component comprises an oblique tongue, an oblique tongue supporting plate and a tail spring, wherein a groove is formed in the oblique tongue supporting plate, and the oblique tongue limiting plate can automatically lock the oblique tongue under the action of the torsion spring; the safety tongue assembly comprises a safety tongue, a safety supporting plate, a safety shifting wheel and a linkage control mechanism, wherein the mechanical and manual knob drives the safety shifting wheel to lock, the door cannot be unlocked, and all the lock tongues can be mechanically unlocked in the door in one step through a handle rotating shaft.

2. The intelligent lock according to claim 1, wherein a key shaft sleeve is further disposed in the lock case, a key pick is disposed on the key shaft sleeve, one end of the key pick is connected to the dial wheel, and the key pick can be driven by the key shaft sleeve and can also be driven by the dial wheel gear, so as to drive the dial wheel to move, and control the extension and retraction of the main lock tongue and the latch bolt.

3. The intelligent lockset as recited in claim 1, wherein the thumb wheel comprises a bar-shaped support arm, a thumb wheel shaft and a thumb wheel gear sleeved on the thumb wheel shaft, the bar-shaped support arm is fixedly connected with the thumb wheel shaft, the driving motor drives the thumb wheel gear to rotate and drive the bar-shaped support arm to rotate along the thumb wheel shaft, and a cylindrical boss is arranged on the bar-shaped support arm, the bar-shaped support arm can pass through the cylindrical boss during movement to apply force to the shift fork, thereby driving the shift fork and the thumb wheel to move and control the extension and retraction of the main bolt and the latch bolt.

4. The intelligent lock according to claim 1, wherein the latch bolt assembly comprises a latch bolt support plate, a latch bolt and a latch bolt limit plate, the tail of the latch bolt support plate is connected with the housing through a spring, the latch bolt can be automatically ejected out under the action of the spring, a torsion spring is arranged at the bottom of the latch bolt limit plate, the latch bolt can be automatically locked under the action of the torsion spring, a first linkage mechanism is arranged between the latch bolt limit plate and the shifting fork and between the latch bolt support plates, one end of the latch bolt spring is connected with the latch bolt support plate, and the latch bolt limit plate can be automatically unlocked under the action of the first linkage mechanism under the condition that the main latch bolt is unlocked or the latch bolt is ejected out.

5. An intelligent lock as claimed in claim 1, wherein a detection board is further disposed in the housing, the detection board is electrically connected to the driving motor, a rocker is disposed on one side of the latch supporting plate, and a positioning switch arm is disposed on the other side of the latch supporting plate, the rocker has a driving effect on the latch limiting plate, the positioning switch arm contacts the detection board, and the positioning switch arm is separated from the detection board when the door is closed, so that the detection board can send a signal to the main board to control the driving motor to operate to automatically lock the door.

6. The intelligent lockset as recited in claim 5, wherein a limiting groove is defined in the latch supporting plate, the latch supporting plate is movable back and forth in the limiting groove, and the bent arm can drive the latch limiting plate to release the limit of the latch supporting plate.

7. The intelligent lock according to claim 1, wherein the bolt mechanism further comprises a safety bolt assembly, the safety bolt assembly comprises a safety bolt, a safety thumb wheel and a mechanical manual knob, the mechanical manual knob can manually drive the safety thumb wheel to lock the safety bolt, so that the lock cannot be unlocked outside the door, a second linkage mechanism is arranged between the safety bolt and the square shaft plectrum, and the square shaft plectrum can drive the second linkage mechanism to act so as to mechanically unlock all the bolts in one step inside the door.

8. The intelligent lockset as claimed in claims 1-3, wherein the main bolt assembly comprises a bolt and a bolt support plate, the bolt support plate is provided with a slot, the bar-shaped support arm can rotate in the slot in a forward and reverse direction by a certain angle, the shifting fork can rotate around its own central axis by a certain angle, the shifting wheel gear is provided with a limit protrusion, and the limit protrusion can limit the shifting wheel to move in a certain angle range.

9. The intelligent lockset as recited in claim 1 wherein said motor assembly includes a reduction gearbox, output teeth on said reduction gearbox engaging said thumb wheel gear to effect drive to the thumb wheel.

10. The intelligent lockset as claimed in any one of claims 1 to 9, wherein a main bolt position detecting switch, a bolt collision position detecting switch and a latch bolt position detecting switch are further disposed in the lock case housing, the detecting switches are disposed on the detecting plate, the detecting switches can feed the bolt condition back to the lock main board in real time, and control the bolt action and the lock state information pushing according to a set program.