阅读说明：本技术 一种两级防护的安全锁体结构 (Safety lock body structure of two-stage protection ) 是由 何鑫 于 2019-11-09 设计创作，主要内容包括：一种两级防护的安全锁体结构,涉及安全门锁技术领域。解决现有的门锁存在安全性差,或成本高,操作不便等技术不足,采用的方案是：锁壳内还设有锁止支架,锁止支架上设有锁止块,锁止支架与锁壳之间还设有锁止支架复位弹簧；主锁舌支架侧壁上设有锁止卡槽,所述的锁止支架还连接有驱动锁止支架,使锁止块从锁止卡槽中脱离的电磁驱动机构；门内侧的手柄反转时通过弧形内拨片推动主锁舌支架,使主锁舌伸出,伸出到位后,主锁舌支架被锁止支架锁止,门内上锁方便。门内和门外可以很方便上锁,门外通过智能验证和钥匙相结合实现开锁,安全性高。(A safety lock body structure with two-stage protection relates to the technical field of safety door locks. The problem of current lock exist the security poor, or with high costs, the inconvenient technique of operation etc. not enough is solved, the scheme of adoption is: a locking support is further arranged in the lock shell, a locking block is arranged on the locking support, and a locking support reset spring is further arranged between the locking support and the lock shell; a locking clamping groove is formed in the side wall of the main lock tongue support, and the locking support is also connected with an electromagnetic driving mechanism for driving the locking support to enable the locking block to be separated from the locking clamping groove; when the handle on the inner side of the door rotates reversely, the main spring bolt support is pushed through the inner shifting piece of the arc, so that the main spring bolt extends out, and after the main spring bolt support extends in place, the main spring bolt support is locked by the locking support, and the door is locked conveniently. The door can be locked very conveniently inside and outside the door, and the unlocking is realized through intelligent verification and key combination outside the door, so that the safety is high.)

1. A safety lock body structure with two-stage protection comprises a lock shell (1), a main bolt (2) and a movable bolt which are arranged in the lock shell (1), a main bolt support (21) and a movable bolt support (31) which are respectively connected with the main bolt (2) and the movable bolt (3) are also arranged in the lock shell (1), and a movable bolt reset spring (32) for elastically driving the movable bolt (3) to extend out and reset is arranged between the movable bolt support (31) and the lock shell (1); the method is characterized in that: a main bolt reset spring (22) for driving the main bolt to retract into the lock shell (1) is arranged between the main bolt support (21) and the lock shell (1);

a locking support (4) is further arranged in the lock shell (1), a locking block (41) is arranged on the locking support (4), and a locking support reset spring (42) which elastically pushes the locking support (4) is further arranged between the locking support (4) and the lock shell (1) to enable the locking block (41) on the locking support to elastically abut against the side wall of the main bolt support (21); a locking clamping groove (23) is formed in the side wall of the main bolt support (21), and when the main bolt (2) is in an extending state, the locking clamping groove (23) is matched and clamped with a locking block (41) on the locking support (4); the locking bracket (4) is also connected with an electromagnetic driving mechanism (5) for driving the locking bracket (4) to separate the locking block (41) from the locking clamping groove (23);

an inner side wall plate of the lock shell (1) is provided with an inner door handle connecting shaft (61), an arc-shaped inner shifting piece (6) which is fixedly connected with the inner door handle connecting shaft (61) and used for forwardly shifting the main lock tongue (2) to extend out is arranged in the lock shell (1), and an unlocking pin shaft (43) which is reversely shifted by the arc-shaped inner shifting piece (6) to push the lock support (4) to push the lock block (41) to be separated from the lock clamping groove (23) to be pushed is arranged on the lock support (4); a movable bolt poking rod (62) is also arranged on the arc-shaped inner poking piece (6), and a movable bolt unlocking driving mechanism (7) for driving the movable bolt support (31) to retreat in the reverse poking process of the arc-shaped inner poking piece (6) is also arranged between the movable bolt poking rod (62) and the movable bolt support (31);

the outer side wall plate of the lock shell (1) is provided with an outer door handle connecting shaft (81); an arc-shaped outer poking sheet (8) which is fixedly connected with a door outer handle connecting shaft (81) and used for poking the main bolt (2) to extend forwards is arranged in the lock shell (1); the outer side wall plate of the lock shell (1) is provided with a lock core connecting shaft (34), and a lock core unlocking pin shaft (35) for shifting the movable bolt support (31) to retreat is arranged on the non-axial center position on the end surface of the lock core connecting shaft (34).

2. A two-stage protective security lock body structure as claimed in claim 1, wherein: the lock shell (1) inside wall board on be equipped with anti-lock connecting axle (371), be equipped with movable spring bolt in lock shell (1) and block piece (37), be equipped with one piece on the non-axle center position on the terminal surface of anti-lock connecting axle (371) and be used for stirring movable spring bolt and block piece (37) translation to block anti-lock round pin axle (372) that movable spring bolt support (31) retreated the position.

3. A two-stage protective security lock body structure as claimed in claim 1, wherein: an emergency unlocking shifting sheet (942) is also inserted into the lock shell (1), and the emergency unlocking shifting sheet (942) is in poking connection with the side edge of the locking support (4) in a matching manner; the lock core connecting shaft (34) is also connected with an emergency plectrum stopping piece (38) for stopping the emergency unlocking plectrum (942) from rotating to stir the locking bracket (4).

4. A two-stage protective security lock body structure as claimed in claim 1, wherein: the lock is characterized in that more than two main lock tongues are arranged on the main lock tongue support (21) side by side, more than two horizontal guide grooves (211) which are arranged in parallel are arranged on the main lock tongue support (21), a group of roller mechanisms (212) are arranged in each horizontal guide groove (211), and the roller mechanisms (212) are connected with the lock shell (1) in a supporting mode through roller shafts.

5. A two-stage protective security lock body structure as claimed in claim 1, wherein: the lock-up support (40) is provided with a longitudinal guide limiting groove (45), the longitudinal guide limiting groove (45) is in support connection with the lock shell (1) through a limiting column (451), the motion direction of the lock-up support (4) is perpendicular to the motion direction of the main bolt (2), one end of the lock-up support (4) is connected with the lock shell (1) through a lock-up support reset spring (42), and the other end of the lock-up support is hinged with an electromagnetic driving mechanism (5) through a linkage push rod (51).

6. A two-stage protective security lock body structure as claimed in claim 5, wherein: the electromagnetic driving mechanism (5) comprises an electromagnet (50), an iron core of the electromagnet (50) is connected with an electromagnet pull rod (52), a pull rod limiting groove (521) axially arranged with the electromagnet is formed in the electromagnet pull rod (52), and a pull rod limiting pin (522) in supporting connection with the lock shell (1) is arranged in the pull rod limiting groove (521); the linkage push rod (51) is hinged with the electromagnet pull rod (52).

7. A two-stage protective security lock body structure as claimed in claim 1, wherein: the movable bolt unlocking driving mechanism (7) between the movable bolt poking rod (62) and the movable bolt support (31) is a lever driving mechanism and comprises a lever (71), the middle part of the lever (71) is connected with the lock shell (1) in a supporting mode through a lever shaft (72), one end of the lever (71) is arranged in the rotating and poking range of the movable bolt poking rod (62), one end of the lever (71) is arranged on an unlocking pushing piece (33) on the movable bolt support (31), and the end of the lever (71) is located on one side, close to the movable bolt (3), of the unlocking pushing piece (33).

8. A two-stage protective safety lock body structure according to claim 2, wherein: the movable bolt blocking piece (37) is longitudinally connected with the inner wall of the lock shell (1) in a sliding mode, the movable bolt blocking piece (37) comprises a blocking piece (373) matched with the movable bolt support (31), a strip-shaped groove (374) with the width matched with the size of the counter lock pin shaft (372) is horizontally formed in the movable bolt blocking piece (37), and the counter lock pin shaft (372) is arranged in the strip-shaped groove (374).

9. A two-stage protective security lock body structure as claimed in claim 1, wherein: the arc-shaped inner shifting piece (6) and the arc-shaped outer shifting piece (8) are respectively arranged on the inner side surface and the outer side surface of the main bolt support (21), and an inner pulley (24) and an outer pulley (25) which are in contact with the arc-shaped inner shifting piece (6) and the arc-shaped outer shifting piece (8) through side wheel matching are respectively arranged on the inner side surface and the outer side surface of the main bolt support (21).

10. A two-stage protective security lock body structure as claimed in claim 1, wherein: the electromagnetic driving mechanism (5) is electrically connected with a fingerprint verification module, a password verification module, a face recognition module, an intelligent card recognition module or a remote network communication module.

Technical Field

The invention relates to the technical field of safety door locks.

Background

The traditional door lock is mainly unlocked by a simple key, the anti-theft effect is poor, the key is easy to copy, and the key lock cylinder is easy to illegally open; other pure passwords control the intelligent door lock, the passwords are easy to be obtained by peeping, and the safety is poor; although the existing door lock on the market can be opened only after the double verification of the key and the intelligent verification is needed, the door lock has the defects of complex structure, high cost and complex and inconvenient operation of locking and unlocking the door.

Disclosure of Invention

In summary, the present invention is directed to a two-stage safety lock structure for solving the technical problems of poor safety, high cost, and inconvenient operation of the existing door lock.

In order to solve the technical problems provided by the invention, the technical scheme is as follows:

a two-stage protection safety lock body structure comprises a lock shell, a main spring bolt and a movable spring bolt, wherein the main spring bolt and the movable spring bolt are arranged in the lock shell; the method is characterized in that: a main spring bolt reset spring for driving the main spring bolt to retract into the lock shell is arranged between the main spring bolt support and the lock shell;

a locking support is further arranged in the lock shell, a locking block is arranged on the locking support, and an elastic pushing locking support is further arranged between the locking support and the lock shell to enable the locking block on the locking support to be elastically abutted against a locking support reset spring on the side wall of the main spring bolt support; a locking clamping groove is formed in the side wall of the main lock tongue support, and the locking clamping groove is matched and clamped with a locking block on the locking support when the main lock tongue is in an extending state; the locking bracket is also connected with an electromagnetic driving mechanism for driving the locking bracket to separate the locking block from the locking clamping groove;

an inner door handle connecting shaft is arranged on the inner side wall plate of the lock shell, an inner arc-shaped shifting piece which is fixedly connected with the inner door handle connecting shaft and used for forwardly shifting the main spring bolt to extend out is arranged in the lock shell, and an unlocking pin shaft which is reversely shifted by the inner arc-shaped shifting piece to push the lock support to push the lock block to be separated from the lock clamping groove to push the lock support; a movable lock tongue poking rod is further arranged on the arc-shaped inner poking piece, and a movable lock tongue unlocking driving mechanism for driving the movable lock tongue support to retreat in the reverse poking process of the arc-shaped inner poking piece is further arranged between the movable lock tongue poking rod and the movable lock tongue support;

the outer side wall plate of the lock shell is provided with an outer door handle connecting shaft; an arc-shaped outer poking sheet which is fixedly connected with a connecting shaft of an outer door handle and used for poking the main spring bolt to extend forwards is arranged in the lock shell; the lock shell is characterized in that a lock core connecting shaft is arranged on the outer side wall plate of the lock shell, and a lock core unlocking pin shaft for shifting the movable bolt support to retreat is arranged on the non-axial center position on the end surface of the lock core connecting shaft.

The technical scheme for further limiting the invention comprises the following steps:

the lock is characterized in that a back-locking connecting shaft is arranged on a side wall plate in the lock shell, a movable spring bolt blocking piece is arranged in the lock shell, and a back-locking pin shaft for shifting the movable spring bolt blocking piece to move horizontally to a position for blocking the movable spring bolt support to retreat is arranged on the non-axial center position on the end surface of the back-locking connecting shaft.

An emergency unlocking shifting piece is also inserted into the lock shell, and the emergency unlocking shifting piece is in poking connection with the side edge of the locking support in a matching mode; the lock cylinder connecting shaft is further connected with an emergency plectrum stopping piece used for stopping the emergency unlocking plectrum from rotationally stirring the locking support.

The lock is characterized in that more than two main lock tongues are arranged on the main lock tongue support side by side, more than two horizontal guide grooves which are arranged in parallel are arranged on the main lock tongue support, a group of roller mechanisms are arranged in each horizontal guide groove, and the roller mechanisms are connected with the lock shell through roller shafts in a supporting manner.

The locking support is provided with a longitudinal guide limiting groove, and the longitudinal guide limiting groove is in supporting connection with the lock shell through a limiting column; the movement direction of the locking bracket is perpendicular to the movement direction of the main lock tongue; one end of the locking support is connected with the lock shell through the locking support reset spring, and the other end of the locking support is hinged with an electromagnetic driving mechanism through a linkage push rod.

The electromagnetic driving mechanism comprises an electromagnet, an iron core of the electromagnet is connected with an electromagnet pull rod, a pull rod limiting groove axially arranged with the electromagnet is arranged on the electromagnet pull rod, and a pull rod limiting pin connected with a lock shell support is arranged in the pull rod limiting groove; the linkage push rod is hinged with the electromagnet pull rod.

The movable spring bolt unlocking driving mechanism between the movable spring bolt poking rod and the movable spring bolt support is a lever driving mechanism and comprises a lever, the middle part of the lever is connected with a lock shell support through a lever shaft, one end of the lever is arranged in the rotating and poking range of the movable spring bolt poking rod, one end of the lever is arranged on an unlocking pushing piece on the movable spring bolt support, and the end of the lever is positioned on one side, close to the movable spring bolt, of the unlocking pushing piece.

The movable spring bolt blocking piece is longitudinally connected with the inner wall of the lock shell in a sliding mode, the movable spring bolt blocking piece comprises a blocking piece matched with the movable spring bolt support, a strip-shaped groove with the width matched with the size of the counter lock pin shaft is horizontally formed in the movable spring bolt blocking piece, and the counter lock pin shaft is arranged in the strip-shaped groove.

The inner side surface and the outer side surface of the main spring bolt support are respectively provided with an inner pulley and an outer pulley which are in contact with the inner side surface and the outer side surface of the arc-shaped shifting piece and the side edge of the arc-shaped shifting piece in a matched mode through idler wheels.

The electromagnetic driving mechanism is electrically connected with a fingerprint verification module, a password verification module, a face recognition module, an intelligent card recognition module or a remote network communication module.

The invention has the beneficial effects that: the door lock can conveniently realize locking and unlocking, the handle on the inner side of the door pushes the locking support to translate through positive rotation so as to release the main spring bolt support, the main spring bolt support drives the main spring bolt to retract into the lock shell under the action of the main spring bolt reset spring, and meanwhile, in the positive rotation process of the handle on the inner side of the door, the movable spring bolt support is driven to compress the movable spring bolt reset spring to retreat through the movable spring bolt unlocking driving mechanism, so that the indoor unlocking effect of the door lock is achieved; when the handle on the inner side of the door rotates reversely, the main spring bolt support is pushed through the inner shifting piece of the arc, so that the main spring bolt extends out, and after the main spring bolt support extends in place, the main spring bolt support is locked by the locking support, and the door is locked conveniently. The locking principle of the handle on the outer side of the door is similar to that of the handle on the inner side of the door, when the intelligent lock is required to be unlocked outside the door, after the intelligent module passes identity verification, the electromagnetic driving mechanism is electrified, the locking support is pushed to translate under the action of the electromagnetic driving mechanism, so that the main lock tongue support is released, and the main lock tongue is driven by the main lock tongue support to retract into the lock shell under the action of the main lock tongue reset spring; in addition, it should be noted that: before the electromagnetic driving mechanism is required to execute the unlocking action, the movable bolt support is driven by the key to compress the movable bolt return spring to retreat, and the outdoor unlocking effect can be achieved. The door can be locked very conveniently inside and outside the door, and the unlocking is realized through intelligent verification and key combination outside the door, so that the safety is high.

Drawings

FIG. 1 is a schematic perspective view of the present invention during its application;

FIG. 2 is a schematic perspective view of another embodiment of the present invention;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is an exploded view of FIG. 2;

FIG. 5 is a schematic perspective view of the lock housing of the present invention in an open position;

FIG. 6 is a schematic view of the present invention without the lock housing;

FIG. 7 is a schematic view of another embodiment of the present invention without the lock housing;

FIG. 8 is an exploded view of FIG. 6;

fig. 9 is an exploded view of fig. 7.

Detailed Description

The structure of the present invention will be further described with reference to the preferred embodiments of the present invention.

Referring to fig. 1 to 9, the two-stage protection safety lock body structure disclosed by the invention comprises a lock case 1, a main bolt 2 and a movable bolt 3 which are arranged in the lock case 1, a main bolt support 21 and a movable bolt support 31 which are respectively connected with the main bolt 2 and the movable bolt 3 are also arranged in the lock case 1, and a main bolt return spring 22 for driving the main bolt 2 to retract into the lock case 1 is also arranged between the main bolt support 21 and the lock case 1; a movable bolt reset spring 32 for elastically driving the movable bolt 3 to extend and reset is arranged between the movable bolt support 31 and the lock shell 1; the shapes of the main bolt 2 and the movable bolt 3 can be the same as the shape of the existing door lock, namely the main bolt 2 is of a cylindrical or cuboid structure, and the movable bolt 3 is of an oblique plane structure. In order to improve the product firmness, more than two main lock tongues 2 are arranged on the main lock tongue support 21 side by side, two cylinders and a cuboid structure are taken as an example in the drawing, and three main lock tongues 2 synchronously and horizontally extend out of the lock shell 1 or retract into the lock shell 1; in order to ensure that three main bolts 2 can be horizontally and synchronously pushed out or retracted, more than two horizontal guide grooves 211 which are arranged in parallel are arranged on the main bolt support 21, in order to ensure that the main bolt support 21 is smooth and smooth in the horizontal moving process, a group of roller mechanisms 212 are arranged in each horizontal guide groove 211, the roller mechanisms 212 are in supporting connection with the lock shell 1 through roller shafts, and in the specific application process of the roller mechanisms 212, bearings with the outer diameters matched with the widths of the horizontal guide grooves 211 can be adopted.

Compared with the existing door lock, the invention is mainly characterized in that a locking support 4 is also arranged in the lock shell 1, and the locking support 4 is mainly used for locking the main bolt support 21 in time after the main bolt 2 extends out of the lock shell 1 to a proper position, so that the main bolt 2 keeps an extending state. The concrete structure is as follows: a locking block 41 is arranged on the locking support 4, and an elastic pushing locking support 4 is arranged between the locking support 4 and the lock shell 1, so that the locking block 41 on the locking support keeps elastically abutted against a locking support reset spring 42 on the side wall of the main bolt support 21; a locking clamping groove 23 is formed in the side wall of the main bolt support 21, and when the main bolt 2 is in an extending state, the locking clamping groove 23 is in matched clamping connection with a locking block 41 on the locking support 4; that is to say that the locking piece 41 is under the effect of locking support reset spring 42, remains all the time with main spring bolt support 21 elasticity butt, and in the main spring bolt support 21 promotion main spring bolt 2 release in-process, locking piece 41 and main spring bolt support 21 elastic contact, and after main spring bolt 2 stretches out the lock shell 1 and arrives predetermined length, locking draw-in groove 23 just with locking piece 41 on the locking support 4 is corresponding, locking piece 41 falls into locking draw-in groove 23 under the effect of locking support reset spring 42, and main spring bolt support 21 is blocked dead, and main spring bolt 2 also can't return in the lock shell 1.

The locking bracket 4 is also connected with an electromagnetic driving mechanism 5 for driving the locking bracket 4 to separate the locking block 41 from the locking clamping groove 23; that is when needing to be with main spring bolt 2 withdrawal lock shell 1 in, electromagnetic drive mechanism 5 circular telegram promotes locking support 4 and compresses locking support reset spring 42, and locking piece 41 breaks away from in locking draw-in groove 23, and main spring bolt support 21 is released, and under the pulling force effect of main spring bolt reset spring 22, main spring bolt support 21 and main spring bolt 2 horizontal translation, main spring bolt 2 withdrawal lock shell 1 in, reach main spring bolt 2 unblock purpose.

The further preferred scheme is as follows: the locking bracket 4 is provided with a longitudinal guide limiting groove 45, and the longitudinal guide limiting groove 45 is in supporting connection with the lock shell 1 through a limiting column 451; the movement direction of the locking bracket 4 is perpendicular to the movement direction of the main bolt 2; one end of the locking support 4 is connected with the lock shell 1 through the locking support reset spring 42, the specific structure can be that the locking support reset spring 42 is sleeved on the locking support 4, the lock shell 1 is folded into a limiting connecting sheet 11 through stamping, the locking support 4 is inserted into a limiting hole on the limiting connecting sheet 11, and the locking support reset spring 42 is abutted against the limiting connecting sheet 11; the other end of the locking bracket 4 is hinged with an electromagnetic driving mechanism 5 through a linkage push rod 51. The electromagnetic driving mechanism 5 comprises an electromagnet 50, an iron core of the electromagnet 50 is connected with an electromagnet pull rod 52, a pull rod limiting groove 521 axially arranged with the electromagnet is arranged on the electromagnet pull rod 52, and a pull rod limiting pin 522 in supporting connection with the lock shell 1 is arranged in the pull rod limiting groove 521; the linkage push rod 51 is hinged with the electromagnet pull rod 52; when the electromagnet 50 is powered on, the electromagnet pull rod 52 horizontally retreats, and as the linkage push rod 51 is of a rigid structure, the linkage push rod 51 can push the locking bracket 4 to move upwards, so that the locking block 41 is separated from the locking clamping groove 23, and the main bolt 2 retracts into the lock shell 1.

In order to control the main bolt 2 to extend out of the lock shell from one side in the door, the invention realizes locking, an inner side wall plate of the lock shell 1 is provided with an inner door handle connecting shaft 61, and in the application process, the inner door handle connecting shaft 61 is connected with an inner door handle 95 through a square shaft; be equipped with in the lock shell 1 with door inside handle connecting axle 61 fixed connection be used for stirring the interior plectrum 6 of arc that the main spring bolt stretches out forward, plectrum 6 receives door inside handle connecting axle 61 synchronous revolution in the arc, through plectrum 6 promotion main spring bolt support 21 in the arc, make main spring bolt 2 stretch out, stretch out the back that targets in place, main spring bolt support 21 is locked by locking support 4, also be promptly with the door inside handle 95 of horizontality upwards lift, main spring bolt 2 stretches out to lock, it is convenient to lock in the door.

In order to unlock and open the door of the invention at one side in the door, the locking bracket 4 is provided with an unlocking pin shaft 43 which is reversely stirred by the arc-shaped inner stirring sheet 6 to push the locking bracket 4 to push the locking block 41 to be separated from the locking clamping groove 23; that is, when the inner door handle connecting shaft 61 drives the inner arc-shaped shifting piece 6 to rotate reversely, the inner arc-shaped shifting piece 6 drives the locking support 4 to compress the locking support return spring 42 through the unlocking pin shaft 43, the locking block 41 is separated from the locking clamping groove 23, and the main bolt support 21 is released; at this time, because the movable bolt 3 exists, the door cannot be opened directly, therefore, a movable bolt poking rod 62 is also arranged on the arc-shaped inner poking sheet 6, and a movable bolt unlocking driving mechanism 7 is also arranged between the movable bolt poking rod 62 and the movable bolt support 31; the action of the movable bolt unlocking driving mechanism 7 is that when the arc-shaped inner shifting piece 6 controls the locking support 4 to release the main bolt support 21, the movable bolt shifting rod 62 can synchronously control the movable bolt support 31 to retreat, the movable bolt reset spring 32 is compressed, the movable bolt 3 retracts into the lock shell 1, the door opening effect is achieved, namely when the door inner handle 95 in a horizontal state is pressed downwards, the main bolt 2 and the movable bolt 3 both retract into the lock shell 1, and the door inner unlocking is convenient to open.

The specific structure of the movable lock bolt unlocking driving mechanism 7 can adopt a lever driving mechanism, which comprises a lever 71, the middle part of the lever 71 is connected with the lock shell 1 through a lever shaft 72 in a supporting way, one end of the lever 71 is arranged in the rotating and shifting range of the movable lock bolt shifting rod 62, one end of the lever 71 is arranged on an unlocking pushing piece 33 on the movable lock bolt support 31, and the end of the lever 71 is positioned on one side of the unlocking pushing piece 33 close to the movable lock bolt 3. In the specific implementation process, a pull rope structure can be adopted to replace a lever driving mechanism.

In order to lock the invention at one side outside the door, an outer door handle connecting shaft 81 is arranged on the outer side wall plate of the lock shell 1, and the outer door handle connecting shaft 81 is connected with an outer door handle 96 through a square shaft; an arc-shaped outer poking sheet 8 which is fixedly connected with an outer door handle connecting shaft 81 and used for poking the main spring bolt 2 to extend forwards is arranged in the lock shell 1; the principle of realizing locking is similar with the principle of locking of plectrum 6 realization in the arc, utilizes the outer plectrum 8 of arc to stir main spring bolt support 21 to realize that main spring bolt 2 stretches out, and similarly, main spring bolt 2 stretches out the back that targets in place, and main spring bolt support 21 is locked by locking support 4. Namely, the horizontal door handle 96 is lifted upwards, the main bolt 2 is extended and locked, and the door is conveniently locked.

The arc-shaped inner shifting piece 6 and the arc-shaped outer shifting piece 8 are preferably arranged on the inner side surface and the outer side surface of the main bolt support 21 respectively; in order to reduce the friction between the arc inner plectrum 6 and the arc outer plectrum 8 and the main bolt support 21 and to ensure that the door is locked smoothly and easily, the inner side surface and the outer side surface of the main bolt support 21 are respectively provided with an inner pulley 24 and an outer pulley 25 which are in contact with the arc inner plectrum 6 and the arc outer plectrum 8 side edge matching rollers.

In order to unlock the invention from one side outside the door, a lock core connecting shaft 34 is arranged on the outer side wall plate of the lock shell 1, and a lock core unlocking pin shaft 35 for shifting the movable bolt support 31 to retreat is arranged on the non-axial center position on the end surface of the lock core connecting shaft 34. The specific structure can be that a U-shaped groove 36 is arranged on the movable bolt support 31, the lock core unlocking pin shaft 35 is arranged in the U-shaped groove 36, when a user inserts a key into the lock core 91 from the outside of the door and rotates, the lock core connecting shaft 34 rotates synchronously, the lock core unlocking pin shaft 35 stirs the movable bolt support 31 in the U-shaped groove 36 to compress the movable bolt reset spring 32, and the movable bolt 3 retracts into the lock shell 1; after the user passes the authentication through the fingerprint identification module 92 on the door outer panel, the electromagnetic driving mechanism 5 is electrified to push the locking support 4 to compress the locking support return spring 42, the locking block 41 is separated from the locking clamping groove 23, the main bolt support 21 is released, the main bolt support 21 and the main bolt 2 horizontally translate under the action of the pulling force of the main bolt return spring 22, and the main bolt 2 retracts into the lock case 1, so that the effect of unlocking and opening the door outside the door is achieved.

In the specific implementation process, besides the fingerprint identification module 92, a password identification module, a face identification module, a smart card identification module or a remote network communication module may be used for authentication. The face recognition module mainly collects face information of an unlocking operator through a camera and controls the electromagnetic driving mechanism 5 to be electrified when the face information is consistent with the preset comparison of the system. The remote network communication module is mainly connected with the cloud server through the network communication module for identity verification, and unlocking is carried out by sending an unlocking instruction through a corresponding special application program on the smart phone.

When a person is in a room, in order to prevent the door from being unlocked and open the door, and improve the personal safety, a counter lock connecting shaft 371 is arranged on the inner side wall plate of the lock shell 1, a movable bolt blocking piece 37 is arranged in the lock shell 1, and a counter lock pin shaft 372 which is used for shifting the movable bolt blocking piece 37 to move horizontally to block the movable bolt support 31 from moving backwards is arranged on the non-axial center position on the end surface of the counter lock connecting shaft 371. After the internal back-locking handle 93 rotates 90 degrees, the back-locking connecting shaft 371 is also rotated 90 degrees synchronously, the back-locking pin 372 on the back-locking connecting shaft 371 can stir the movable bolt blocking piece 37 to move upwards, the movable bolt support 31 is blocked to retreat, even if a key is inserted outside the door, the movable bolt support 31 cannot be stirred to retreat, the door cannot be unlocked, and the personal safety inside the door is improved.

The specific structure of the movable bolt blocking piece 37 is as follows: the movable bolt blocking piece 37 is longitudinally connected with the inner wall of the lock shell 1 in a sliding mode, the movable bolt blocking piece 37 comprises a blocking piece 373 matched with the movable bolt support 31, a strip-shaped groove 374 with the width matched with the size of the counter lock pin shaft 372 is horizontally arranged on the movable bolt blocking piece 37, the counter lock pin shaft 372 is arranged in the strip-shaped groove 374, and the movable bolt blocking piece 37 is stirred to move up and down.

In order to avoid the failure of the circuit part of the invention, which leads to the failure of the electromagnetic driving mechanism 5, the invention is also provided with an emergency key lock cylinder 94, the emergency key lock cylinder 94 is closed by a protective cover 941 on the outer panel of the door under normal conditions, an emergency unlocking plectrum 942 connected with the emergency key lock cylinder 94 is also inserted into the lock shell 1, and the emergency unlocking plectrum 942 is in poke connection with the side edge of the push rod 44 on the locking bracket 2 in a matching way; in an emergency situation, the protective cover 941 is removed, an emergency key is inserted, the emergency key cylinder 94 pulls the push rod 44 to move upwards through the emergency unlocking poking piece 942, and the locking support 4 releases the main bolt support 21. In order to prevent the emergency key cylinder 94 from being illegally abused, an emergency plectrum stopping piece 38 for stopping the emergency unlocking plectrum 942 from rotating to stir the locking bracket 4 is also connected to the emergency key cylinder 34; also under the emergency situation, can skip the function of electromagnetic drive mechanism 5 by under two keys combined action, realize the emergent door opening of outdoors.