CN112012580A - Lock core and door lock - Google Patents

Abstract

The invention provides a lock core and a door lock, wherein the lock core is provided with a front lock cylinder, a shifting head, a lock cylinder connecting assembly and a rear lock cylinder, the shifting head is connected with the rear lock cylinder in a matched manner, and the rear lock cylinder is connected with the front lock cylinder in a matched manner through the lock cylinder connecting assembly; the front lock core is provided with a key hole, the key hole penetrates through the front lock core along the length direction of the front lock core, one end of the key hole, which is close to the shifting head, is provided with a push block, and the push block is arranged in the key hole in a sliding manner; when the ejector pad moves towards the direction of the rear lock cylinder, the front lock cylinder is connected with the rear lock cylinder, and when the ejector pad moves towards the direction far away from the rear lock cylinder, the front lock cylinder is disconnected with the rear lock cylinder. The door lock is provided with the lock core, and the linkage between the front lock liner and the rear lock liner can be improved by applying the lock core provided by the invention.

Description

Lock core and door lock

Technical Field

The invention relates to the technical field of locks, in particular to a lock cylinder and a door lock applying the lock cylinder.

Background

The lockset is a common appliance in human life and is used for guaranteeing the property safety of people. Along with the development of the society, various locksets have evolved, have satisfied various user's demands, wherein, included to set up preceding lock courage and back lock courage on the lock core to the user can control preceding lock courage and back lock courage respectively and unblank.

However, most of the existing locks are independent actions of the front lock cylinder and the rear lock cylinder, and lack linkage between the front lock cylinder and the rear lock cylinder, and meanwhile, the key is only used as a function of matching the teeth, and lacks linkage.

Disclosure of Invention

The invention aims to provide a lock core for increasing linkage between a front lock cylinder and a rear lock cylinder.

The second purpose of the invention is to provide a door lock which can increase the linkage between the front lock cylinder and the rear lock cylinder.

In order to achieve the first purpose, the lock core provided by the invention is provided with a front lock cylinder, a shifting head, a lock cylinder connecting assembly and a rear lock cylinder, wherein the shifting head is connected with the rear lock cylinder in a matched manner, and the rear lock cylinder is connected with the front lock cylinder in a matched manner through the lock cylinder connecting assembly; the front lock core is provided with a key hole, the key hole penetrates through the front lock core along the length direction of the front lock core, one end of the key hole, which is close to the shifting head, is provided with a push block, and the push block is arranged in the key hole in a sliding manner; the lock liner connecting assembly comprises a front pulling sub, a rear pulling sub, a top post and a top post spring, the rear pulling sub, the top post and the top post spring are all installed in a connecting piece cavity of a rear lock liner, the first end of the front pulling sub is connected with a front guide clamping groove at the end, close to the front pulling sub, of the front lock liner in a clamped mode, the first end of the front pulling sub is abutted to the push block, a rear guide clamping groove is formed at the end, close to the front pulling sub, of the rear pulling sub, the second end of the front pulling sub is matched with the rear guide clamping groove in a arranged mode, the rear pulling sub is provided with a top post through hole communicated with the rear guide clamping groove, the top post is installed in the top post through hole, the first end of the top post is abutted to the second end of the front pulling sub, the second end of the top post is abutted to the first end of; when the ejector pad moves towards the direction of the rear lock cylinder, the front lock cylinder is connected with the rear lock cylinder, and when the ejector pad moves towards the direction far away from the rear lock cylinder, the front lock cylinder is disconnected with the rear lock cylinder.

According to the scheme, the lock core is provided with the push block, the front poking clamp, the rear poking clamp, the top post and the top post spring, and when the push block moves towards the rear lock core, the front lock core is connected with the rear lock core, so that unlocking can be realized. When the lock is locked, the pushing block is pushed towards the inside of the key hole by the ejection column spring, the pushing block moves towards the direction far away from the rear lock cylinder, and the front lock cylinder is disconnected with the rear lock cylinder. In the invention, the shifting head is only driven by the rear lock cylinder, and when the front lock cylinder needs to be unlocked, the matching of the push block lock cylinder connecting assembly is required to be completed, so that the linkage of the lock cylinder and the rear lock cylinder is increased. In addition, when the lock is closed, the push block is pushed towards the inside of the key hole through the top column spring.

In a further scheme, one end, close to the shifting head, of the rear lock cylinder is provided with a connecting piece clamping groove, the outer peripheral wall of the rear shifting ring is provided with a connecting clamping block, and the connecting clamping block is clamped in the connecting piece clamping groove.

Therefore, the connection clamping block and the connecting piece clamping groove are arranged, so that the rear pulling claw and the rear lock cylinder can be connected and matched, and the unlocking or locking operation of the front lock cylinder can be realized.

In a further scheme, a rear lock cylinder accommodating groove is formed in one side, close to a rear lock cylinder, of the shifting head, and the rear lock cylinder is inserted into the rear lock cylinder accommodating groove; and a lock cylinder clamping block is arranged in the rear lock cylinder accommodating groove and is clamped with the connecting piece clamping groove.

Therefore, the lock cylinder clamping block and the connecting piece clamping groove are arranged in the rear lock cylinder accommodating groove in a clamped mode, so that the rear lock cylinder can be connected with the shifting head, and the unlocking or locking operation is facilitated.

In the further scheme, lock courage coupling assembling still includes later dial young spring, and later dial young spring mounting in the connecting piece intracavity, later dial the first end of young spring and later dial young second end butt, later dial the second end of young spring and the inner wall butt in connecting piece chamber.

It is therefore clear that because back lock courage unblanking in-process needs to rotate, can lead to preceding young second end of dialling and the dislocation of the young back direction draw-in groove of dialling after with, make preceding young second end of dialling can not insert back direction draw-in groove, thereby can't promote the ejector pad when leading to inserting the key, cause the unable complete insertion of key and the unable circumstances of unblanking, consequently, dial young spring after setting up, can make in the front dial young second end with dial young back direction draw-in groove dislocation under the circumstances behind, still can use the key to promote the ejector pad, after key and preceding lock courage match, the accessible rotates the key and drives preceding young second end of dialling and dial young back direction draw-in groove and reset after with, thereby realize unblanking.

In a further scheme, the push block is provided with a limiting part, and the limiting part is positioned at one end, close to the front poking claw, of the push block.

Therefore, the push block is provided with the limiting part, the push block is prevented from sliding out of the key hole, meanwhile, the contact surface of the push block and the front poking small is increased, when the push block pushes the front poking small, the front poking small is evenly stressed, and blockage is avoided.

In a further scheme, the lock core further comprises a rear knob, and the rear knob is detachably mounted at one end, deviating from the shifting block, of the rear lock liner.

Therefore, the rear knob is arranged, so that the user can conveniently unlock or lock the lock through the rear knob.

In the further scheme, preceding lock courage still is provided with control circuit board, including a motor, an end cap, a controller, and a cover plate, the drive block resetting means, the locking hinders the bolt and the locking bolt, the motor is connected with control circuit board electricity, the first end of drive block is installed in the pivot of motor, the second end of drive block hinders the first end of bolt with the locking and is connected, drive block resetting means sets up with the drive block cooperation, the locking that the locking hinders to be provided with on the perisporium of bolt corresponds the locking bolt holding tank that sets up with the locking bolt, the last electrically conductive probe that is provided with of control circuit board, a part of electrically conductive probe stretches into in the.

Therefore, the front lock liner can realize intelligent control of the lock cylinder conveniently through the control circuit board, the motor, the driving block resetting device, the lock blocking bolt and the lock bolt, and the safety of the lock cylinder and the diversity of unlocking functions are improved.

In a further scheme, the front lock cylinder is further provided with a motor support, the motor support is detachably mounted on the front lock cylinder, and the motor is mounted on the motor support.

Therefore, the motor support is arranged and used for fixing the motor, the axis among the motor, the driving block and the locking stop bolt can be guaranteed, and the lock core fault caused by the displacement of the motor during working is prevented.

In a further scheme, the pushing block is also provided with a position avoiding groove, and an opening of the position avoiding groove faces the locking bolt.

Therefore, the push block can prevent the push block from interfering the movement of the locking bolt by arranging the avoiding groove.

In order to achieve the second object, the door lock provided by the invention comprises a lock cylinder and a key, wherein the key and the lock cylinder can be arranged in a pluggable manner; the lock core adopts the lock core; the key comprises a key body, and the key body is matched with the key hole; when the key body is inserted into the key hole, the push block is pushed to move towards the direction of the rear lock cylinder.

Therefore, the lock core is provided with the push block, the front pull ring, the rear pull ring, the top column and the top column spring, when the push block moves towards the rear lock cylinder, the front lock cylinder is connected with the rear lock cylinder, and therefore unlocking can be achieved. When the lock is locked, the pushing block is pushed towards the inside of the key hole by the ejection column spring, the pushing block moves towards the direction far away from the rear lock cylinder, and the front lock cylinder is disconnected with the rear lock cylinder. In the invention, the shifting head is only driven by the rear lock cylinder, and when the front lock cylinder needs to be unlocked, the matching of the push block lock cylinder connecting assembly is required to be completed, so that the linkage of the lock cylinder and the rear lock cylinder is increased. In addition, when the key is locked, the pushing block is pushed towards the inside of the key hole through the ejection column spring, so that the pushing block plays a role in withdrawing the key from the key hole, the key is convenient to pull out, the key hole is blocked, and the function of preventing illegal key insertion can be also played. And the linkage among the key, the front lock cylinder and the rear lock cylinder can be increased by pushing the push block to move through the key.

Drawings

Fig. 1 is a block diagram of a first embodiment of the door lock of the present invention.

Fig. 2 is an exploded view of the lock cylinder in the first embodiment of the door lock of the present invention.

Fig. 3 is a structural sectional view of a key cylinder in a first embodiment of the door lock of the present invention.

Fig. 4 is an exploded view of the front cylinder of the first embodiment of the door lock of the present invention.

Fig. 5 is a structural view of a front cylinder liner of the first embodiment of the door lock of the present invention.

Fig. 6 is a sectional view showing the structure of the front cylinder holder in the first embodiment of the door lock of the present invention.

Fig. 7 is a structural view of a motor bracket in the first embodiment of the door lock of the present invention.

Fig. 8 is a structural installation diagram of a control circuit board, a motor, a driving block resetting device, a locking blocking bolt and a locking bolt in the first embodiment of the door lock of the invention.

Fig. 9 is an exploded view of the drive block reset device in the first embodiment of the door lock of the present invention.

Fig. 10 is a sectional view showing the structure of the drive block returning means in the first embodiment of the door lock of the present invention.

Fig. 11 is a structural view of a driving block in the first embodiment of the door lock of the present invention.

Fig. 12 is a block diagram of a locking bar in a first embodiment of the door lock of the present invention.

Fig. 13 is a structural installation view of the push block and cylinder connecting assembly in the first embodiment of the door lock of the present invention.

Fig. 14 is an exploded view of the cylinder connecting assembly in the first embodiment of the door lock of the present invention.

Fig. 15 is a structural view of the rear cylinder in the first embodiment of the door lock of the present invention.

Fig. 16 is a structural view of the head in the first embodiment of the door lock of the present invention.

Fig. 17 is a structural view of a key in the first embodiment of the door lock of the present invention.

Fig. 18 is a sectional view showing the structure of a key in the first embodiment of the door lock of the present invention.

Fig. 19 is an exploded view of the front cylinder of the second embodiment of the door lock of the present invention.

Fig. 20 is a structural installation diagram of a motor, a driving block, a locking stop bolt and a motor bracket in the second embodiment of the door lock of the invention.

Fig. 21 is a structural view of a motor bracket in a second embodiment of the door lock of the present invention.

Fig. 22 is an exploded view of the front cylinder of the third embodiment of the door lock of the present invention.

Fig. 23 is a sectional view showing the structure of a front cylinder in a third embodiment of the door lock of the present invention.

FIG. 24 is a structural installation diagram of the motor, the driving block, the locking stop bolt and the motor bracket in the third embodiment of the door lock of the present invention.

Fig. 25 is a structural view of a front lock container cover in a third embodiment of the door lock of the present invention.

The invention is further explained with reference to the drawings and the embodiments.

Detailed Description

First embodiment of door lock:

as shown in fig. 1, the door lock of the present invention includes a lock cylinder 1 and a key 2, and the key 2 is detachably installed in the lock cylinder 1.

Referring to fig. 2 and 3, the lock core 1 includes a lock case 3, a front lock cylinder 4, a dial 5, a lock cylinder connecting assembly 6 and a rear lock cylinder 7, the front lock cylinder 4 is inserted into a front lock cylinder hole 31 of the lock case 3, the dial 5 is disposed in a dial slot 32 of the lock case 3, and the rear lock cylinder 7 is inserted into a rear lock cylinder hole 33 of the lock case 3. The shifting head 5 is connected with the rear lock cylinder 7 in a matched mode, the rear lock cylinder 7 is connected with the front lock cylinder 4 in a matched mode through the lock cylinder connecting assembly 6, and the rear lock cylinder 7 drives the shifting head 5 to rotate.

Referring to fig. 4, the front cylinder lock 4 includes a front cylinder lock holder 41, a front cylinder lock cover 42, a control circuit board 43, a motor 44, a driving block 45, a driving block returning device 46, a lock blocking bolt 47, a lock bolt 48 (see fig. 3), and a motor bracket 49. The front cylinder tube holder 41 and the front cylinder tube cover 42 are detachably mounted, and in this embodiment, the front cylinder tube holder 41 and the front cylinder tube cover 42 are detachably mounted by bolts. As can be seen from fig. 3, the lock housing 3 is further provided with a locking bolt slot 34, the locking bolt slot 34 is arranged to cooperate with a locking bolt 48, and the locking bolt 48 can be inserted into the locking bolt slot 34 when locked.

Referring to fig. 5 and 6, the front cylinder tube holder 41 is provided with a key hole 411, a circuit board cavity 412, a bracket mounting hole 413, a reset mounting cavity 414, and a locking blocking slot 415, and the circuit board cavity 412, the bracket mounting hole 413, the reset mounting cavity 414, and the locking blocking slot 415 are sequentially arranged in a direction in which an opening of the key hole 411 extends inward. The key hole 411 penetrates the cylinder 41 in the longitudinal direction of the front cylinder holder 41. The control circuit board 43 is mounted in the circuit board chamber 412. The driving block resetting device 46 is arranged in a resetting installation cavity 414, the resetting installation cavity 414 is communicated with the key hole 411, and the locking stop bolt 47 is arranged in a locking stop bolt groove 415. The front cylinder tube holder 41 is further provided with a locking bolt hole 416, the locking bolt hole 416 extends from the bottom of the locking bolt groove 415 to the outer peripheral wall of the front cylinder tube holder 41, and the locking bolt 48 is inserted into the locking bolt hole 416.

The motor bracket 49 is detachably mounted on the front cylinder lock holder 41, and the motor 44 is mounted on the motor bracket 49. The motor 44, drive block 45 and locking stop 47 are coaxially disposed. In this embodiment, referring to fig. 7, the motor bracket 49 is provided with a fixing hole 491 and a motor mounting hole 492, the fixing hole 491 is detachably connected to the bracket mounting hole 413 by a screw, and the motor 44 is mounted in the motor mounting hole 492.

The front cylinder lock holder 41 is further provided with a conductive probe hole 417, and the conductive probe hole 417 is communicated with the key hole 411. Referring to fig. 8, the control circuit board 43 is provided with a conductive probe 431 and a key cylinder control chip (not shown), the conductive probe 431 is electrically connected with the key cylinder control chip, the conductive probe 431 is inserted into a conductive probe hole 417, a part of the conductive probe 431 extends into the key hole 411, the conductive probe 431 is used for electrically contacting with the key 2 and can be used for conducting electricity and communicating, the number of the conductive probes 431 can be set according to the communication mode between the control circuit in the control circuit board 43 and the key 2, and in the embodiment, the number of the conductive probes 431 is three.

As can be seen from fig. 8, the motor 44 is electrically connected to the key cylinder control chip of the control circuit board 43, the first end of the driving block 45 is mounted on the rotating shaft of the motor 44, the second end of the driving block 45 is connected to the first end of the locking stop pin 47, and the driving block resetting device 46 is disposed in cooperation with the driving block 45. The motor 44 is used for driving the driving block 45 to rotate when unlocking, the driving block 45 is used for driving the locking stop bolt 47 to rotate, and the driving block resetting device 46 is used for pushing the driving block 45 to rotate for resetting when locking.

Referring to fig. 9 and 10, in the present embodiment, the driving block returning means 46 includes a stationary returning piece 461, a movable returning piece 462 and a spring member 463, the stationary returning piece 461 is provided with a first spring hole 4611, the movable returning piece 462 is provided with a second spring hole 4621, and the first spring hole 4611 and the second spring hole 4621 cooperate to form a spring hole for installing the spring member 463. The length of the stationary reset plate 461 is greater than the length of the movable reset plate 462 in the expansion and contraction direction of the spring member 463. The movable reset plate 462 is further provided with a first projection 4622 and a second projection 4623, and the first projection 4622 and the second projection 4623 are respectively located on two opposite sides of the movable reset plate 462. The first projection 4622 abuts against the driving block 45, and a part of the second projection 4623 extends into the keyhole 411.

Referring to fig. 11, the driving block 45 is provided with a first inclined surface 451, and the first inclined surface 451 abuts against the first projection 4622. The first end of the driving block 45 is further provided with a mounting hole 452, and a rotating shaft of the motor 44 is inserted into the mounting hole 452 in an interference fit manner.

Referring to fig. 12, the latch block 47 has a latch receiving groove 471 formed in a circumferential wall thereof corresponding to the latch 48, and the latch receiving groove 471 receives a portion of the latch 48 when the latch is released. A first end of the locking stop 47 is provided with a locking groove 472, and a second end of the driving block 45 is engaged with the locking groove 472. The locking stop 47 is further provided with a limit bump 473, the limit bump 473 is located at the second end of the locking stop 47, and the second end of the locking stop 47 is opposite to the first end of the locking stop 47. As shown in fig. 5, the front cylinder lock holder 41 is further provided with a limiting groove 419, and the limiting protrusion 473 is disposed in cooperation with the limiting groove 419 to limit the rotation angle of the locking stop pin 47.

To facilitate the insertion of the locking bolt 48 into the locking bolt receiving groove 471, the opening of the locking bolt receiving groove 471 is chamfered, and one end of the locking bolt 48 inserted into the locking bolt receiving groove 471 is provided with a hemispherical surface. In this embodiment, as shown in fig. 8, the locking bolt 48 includes a spring 481 and a bolt 482, and the spring 481 is fitted over the bolt 482. The end of the plug body 482 facing away from the locking stop 47 is provided with a hemispherical surface to reduce mechanical friction when the front cylinder rotates. During unlocking, the bolt 482 moves in the direction of compressing the spring 481, and during locking, the bolt 482 moves toward the locking bolt catch groove 34 under the force of the spring 481.

As can be seen from fig. 3, a push block 9 is disposed at one end of the key hole 411 close to the dial 5, and the push block 9 is slidably disposed in the key hole 411. Referring to fig. 13, the pushing block 9 is provided with a limiting portion 91 and a avoiding groove 92, the limiting portion 91 is located at one end of the pushing block 9 close to the cylinder connecting assembly 6, and an opening of the avoiding groove 92 faces the locking bolt 48.

Referring to fig. 14, the lock cylinder connecting assembly 6 includes a front dial ring 61, a rear dial ring 62, a top post 63, a top post spring 64 and a rear dial ring spring 65, and the rear dial ring 62, the top post 63, the top post spring 64 and the rear dial ring spring 65 are all installed in a connecting piece cavity 71 (see fig. 16) of the rear lock cylinder 7. As shown in fig. 5, a front guide slot 419 is disposed at an end of the front lock cylinder holder 41 close to the dial 5, a front lock cylinder block 613 is disposed at a first end 611 of the front dial 61, and the front lock cylinder block 613 is clamped in the front guide slot 419. The first end 611 of the front dial ring 61 is also abutted against the push block 9, a rear guide clamping groove 621 is arranged at one end, close to the front dial ring 61, of the rear dial ring 62, and the second end 612 of the front dial ring 61 is matched with the rear guide clamping groove 621. The rear pull ring 62 is provided with a top post through hole 622 communicated with the rear guide clamping groove 621, the top post 63 is installed in the top post through hole 622, the first end 631 of the top post 63 abuts against the second end 632 of the front pull ring 61, the second end 632 of the top post 63 abuts against the first end 641 of the top post spring 64, and the second end 642 of the top post spring 64 abuts against the inner wall of the connecting piece cavity 71. The second end 632 of the top post 63 is provided with a fixing post 633, and the top post spring 64 is sleeved on the top post spring 64. A first end 651 of the rear hook spring 65 abuts the second end 624 of the rear hook 62, and a second end 652 of the rear hook spring 65 abuts the inner wall of the connector cavity 71.

Referring to fig. 15, a connecting piece slot 72 is arranged at one end of the rear lock core 7 close to the shifting head 5, a connecting block 623 is arranged on the outer peripheral wall of the rear shifting ring 62, and the connecting block 623 is clamped in the connecting piece slot 72.

As can also be seen from fig. 2 and 3, the lock cylinder 1 further includes a rear knob 8, and the rear knob 8 is detachably mounted at an end of the rear cylinder core 7 facing away from the dial 5. In this embodiment, the rear knob 8 is provided with a jack 81, the end of the rear lock core 7 departing from the dial 5 is provided with an insertion column 73, the insertion column 73 is inserted into the jack 81, and the insertion column 73 and the jack 81 are detachably fixed through a bolt 82.

Referring to fig. 16, a rear lock cylinder receiving groove 51 is formed at a side of the dial 5 close to the rear lock cylinder 7, and the rear lock cylinder 7 is inserted into the rear lock cylinder receiving groove 51. A lock core clamping block 52 is arranged in the rear lock core accommodating groove 51, and the lock core clamping block 52 is clamped with the connecting piece clamping groove 72.

When the door lock is in a working state, if the key 2 is inserted to push the push block 9, and the push block 9 moves towards the rear lock cylinder 7, the push block 9 pushes the front poking clip 61, so that the second end 612 of the front poking clip 61 is clamped with the rear guide clamping groove 621 of the rear poking clip 62, meanwhile, the connecting clamping block 623 is clamped in the connecting piece clamping groove 72, so that the front lock cylinder 4 is connected with the rear lock cylinder 7, and at the moment, the rear lock cylinder 7 can be driven to rotate by the front lock cylinder 4, so that the poking head 5 is driven to rotate. If when the key 2 is pulled out, when the push block 9 moves towards the direction far away from the rear lock cylinder 7, the top column 63 pushes the front pull-out pin 61 under the acting force of the top column spring 64, so that the second end 612 of the front pull-out pin 61 exits from the rear guide clamping groove 621 of the rear pull-out pin 62, and the front lock cylinder 4 is disconnected from the rear lock cylinder 7, and at the moment, only the rear lock cylinder 7 can drive the pull head 5 to rotate. In addition, because the lock courage 7 is unblanked the in-process and need rotate, can lead to preceding dialling the second end 612 of young 61 and the back direction draw-in groove 621 dislocation of young 62 of dialling, make preceding second end 612 of dialling young 61 can not insert back direction draw-in groove 621, thereby can't promote ejector pad 9 when leading to inserting the key, cause the unable complete insertion of key and the condition that unblanks, consequently, dial young spring 65 after setting up, can make in the preceding second end 612 of dialling young 61 and the back direction draw-in groove dislocation 621 of young 62 of dialling the condition, still can use the key to promote ejector pad 9, after the key matches with preceding lock courage 4, accessible rotates the key and drives preceding second end 612 of dialling young 61 and the back direction draw-in groove 621 of dialling young 62 of dialling after and reset, thereby realize preceding young 61 and the connection of dialling young 62 after.

Referring to fig. 17 and 18, in the present embodiment, the key 2 includes a circuit box upper cover 21 and a circuit box lower cover 22, the circuit box upper cover 21 and the circuit box lower cover 22 are detachably connected, and the circuit box upper cover 21 and the circuit box lower cover 22 cooperate to form a circuit cavity 23.

The circuit chamber 23 is provided with a key control circuit board 24 and a battery 26, and the battery 26 is electrically connected to the key control circuit board 24.

The key 2 further comprises a key body 25, the key body 25 is provided with a contact circuit board 251, an electric contact 252 and a tooth 253, the contact circuit board 251 is embedded in the key body 25, the electric contact 252 is arranged on the contact circuit board 251, the contact circuit board 251 is electrically connected with the key control circuit board 24, the electric contact 252 and the tooth 253 are arranged on the same side of the key body 25, and the electric contact 252 is electrically connected with the key control circuit board 24. The tooth pattern 253 is matched with the second projection 4623 of the movable resetting piece 462, the electric contacts 252 are matched with the conductive probes 431, the number of the electric contacts 252 is the same as that of the conductive probes 431, and in the embodiment, the number of the electric contacts 252 and the number of the conductive probes 431 are three.

In the door lock of the present invention, the key control circuit board 24 can be provided with a circuit module as required. In this embodiment, the key control circuit board 24 is provided with a key control chip, a wireless communication module, an audible and visual alarm module and a power management module, and the electrical contact, the wireless communication module and the audible and visual alarm module are all electrically connected to the key control chip. The power management module provides power for the key control chip, the electric contact, the wireless communication module and the sound-light alarm module. The key control chip adopts a known single chip microcomputer and is used for receiving the verification code of the lock cylinder control chip, verifying the verification code and then sending verification feedback information to the lock cylinder control chip. The wireless communication module includes, but is not limited to, a bluetooth module, an NB-iot module, a 4G module, a 5G module, or a WiFi module for communicating with an external device. The sound-light alarm module is a sound-light alarm module known to those skilled in the art and is used for giving an alarm. The power management module employs a power management module known to those skilled in the art for power management of the battery 26.

In addition, the key control circuit board can be further provided with a fingerprint module, a digital key module and an OLED display module according to needs, the fingerprint module, the digital key module and the OLED display module are all electrically connected with the key control chip, the fingerprint module, the digital key module and the OLED display module all adopt known circuit modules, the fingerprint module is used for fingerprint verification, the digital key module is used for inputting passwords, and the OLED display module is used for displaying.

When the door lock of the present invention is in the locked state, the first projection 4622 abuts the first inclined surface 451, the locking bolt 48 is inserted into the locking bolt retaining groove 34, and the locking bolt receiving groove 471 is deviated from the locking bolt hole 416, thereby locking the front cylinder 4. When unlocking is required, the key body 25 of the key 2 is inserted into the key hole 411 so that the electrical contact 252 is in electrical contact with the conductive probe 431, at which time the battery 26 can supply power to the cylinder control chip through the electrical contact 252. After the lock cylinder control chip is started, the verification code is sent to the key control chip 23, and the key control chip 23 sends verification feedback information to the lock cylinder control chip after verifying the verification code. When the verification passes, the cylinder control chip sends an unlock control signal to the motor 44. After the key 2 is inserted into the key hole 411, the tooth 253 acts on the second projection 4623 to drive the first projection 4622 to be away from the first inclined surface 451 of the driving block 45, so that the driving block 45 has a rotation space, at this time, after the key cylinder control chip sends an unlocking control signal to the motor 44, the motor 44 drives the driving block 45 to move the first inclined surface 451 toward the first projection 4622, the locking bolt 47 rotates along with the driving block 45, so that the locking bolt receiving groove 471 is opposite to the locking bolt hole 416, and the locking bolt 48 can be retracted into the locking bolt receiving groove 471. Meanwhile, when the key body 25 is inserted into the key hole 411, the push block 9 is pushed to move towards the rear lock cylinder 7, the front lock cylinder 4 is connected with the rear lock cylinder 5, and the front lock cylinder 4 is rotated by using the key 2, so that unlocking can be realized. When locking is required, the key 2 is used to rotate the front cylinder 4, so that the locking bolt 48 is inserted into the locking bolt clamping groove 34, after the key is pulled out, the movable reset piece 462 pushes the driving block 45 to rotate under the action of the spring piece 463, so as to drive the locking stop bolt 47, so that the locking bolt accommodating groove 471 deviates from the locking bolt hole 416, and the locking bolt 48 is locked, so as to lock the front cylinder.

Second embodiment of door lock:

the door lock in this embodiment is different from the door lock in the first embodiment of the door lock only in the arrangement of the motor bracket, and only the parts related to the motor bracket will be described below.

As shown in fig. 19, the front cylinder includes a front cylinder holder 410, a front cylinder cover 420, a motor 440, a driving block 450, a driving block returning device 460, a locking block 470, and a motor support 490. The front cylinder liner seat 410 and the front cylinder liner cover 420 are detachably mounted.

The motor support 490 is detachably mounted on the front cylinder holder 410, and the motor 440, the driving block 450, and the locking stop bolt 470 are coaxially disposed. In this embodiment, referring to fig. 20 and 21, the motor support 490 is provided with a motor mounting hole 4901, a locking stopper mounting hole 4902, and a driving block receiving groove 4903 opening toward the driving block returning device 460, the locking stopper mounting hole 4902 is coaxially disposed with the motor mounting hole 4901, and the driving block receiving groove 4903 is located between the motor mounting hole 4901 and the locking stopper mounting hole 4902. The motor 440 is mounted in the motor mounting hole 4901, the locking bar 470 is rotatably mounted in the locking bar mounting hole 4902, and the drive block 450 is located in the drive block receiving slot 4903.

Third embodiment of door lock:

the door lock in this embodiment is different from the door lock in the first embodiment of the door lock only in the arrangement of the motor bracket, and only the parts related to the motor bracket will be described below.

Referring to fig. 22 and 23, the front cylinder includes a front cylinder holder 10, a front cylinder cover 20, a motor 40, a driving block 50, a driving block returning means 60, a locking blocking bolt 70, and a motor bracket 90. The front lock core seat 10 and the front lock core cover 20 are detachably mounted, and the motor 40, the driving block 50 and the lock stop bolt 70 are coaxially arranged.

The motor bracket 90 is arranged on the front lock liner cover 20, and the motor bracket 90 and the front lock liner cover 20 are integrally formed.

In this embodiment, referring to fig. 24 and 25, the motor bracket 90 is provided with a motor mounting hole 901, a locking stop bolt mounting hole 902, and a driving block accommodating groove 903 with an opening facing the driving block resetting device 60, the locking stop bolt mounting hole 902 is coaxially arranged with the motor mounting hole 901, and the driving block accommodating groove 903 is located between the motor mounting hole 901 and the locking stop bolt mounting hole 902. The motor 40 is installed in the motor installation hole 901, the locking stop bolt 70 is rotatably installed in the locking stop bolt installation hole 902, and the driving block 50 is located in the driving block accommodating slot 903.

Of course, the motor bracket 90 may be detachably mounted on the front lock core cover 20 as a separate component, similar to the motor bracket of the second embodiment of the door lock, in addition to being integrally formed with the front lock core cover 20.

It should be noted that the above is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept also fall within the protection scope of the present invention.

Claims (10)

1. A lock core is characterized in that: the lock comprises a front lock core, a shifting head, a lock core connecting assembly and a rear lock core, wherein the shifting head is connected with the rear lock core in a matched manner, and the rear lock core is connected with the front lock core in a matched manner through the lock core connecting assembly;

the front lock core is provided with a key hole, the key hole penetrates through the front lock core along the length direction of the front lock core, one end of the key hole, close to the shifting head, is provided with a push block, and the push block is arranged in the key hole in a sliding mode;

the lock liner connecting assembly comprises a front pulling clip, a rear pulling clip, a top post and a top post spring, the rear pulling clip, the top post and the top post spring are all arranged in a connecting piece cavity of the rear lock liner, the first end of the front dial sub is clamped in the front guide clamping groove at one end of the front lock liner close to the front dial sub, the first end of the front dial sub is abutted against the push block, one end of the rear dial sub close to the front dial sub is provided with a rear guide clamping groove, the second end of the front poking sub is matched with the rear guide clamping groove, the rear poking sub is provided with a top post through hole communicated with the rear guide clamping groove, the top post is arranged in the top post through hole, the first end of the top post is abutted with the second end of the front poking claw, the second end of the top column is abutted against the first end of the top column spring, and the second end of the top column spring is abutted against the inner wall of the connecting piece cavity;

when the push block moves towards the direction of the rear lock cylinder, the front lock cylinder is connected with the rear lock cylinder, and when the push block moves towards the direction far away from the rear lock cylinder, the front lock cylinder is disconnected with the rear lock cylinder.

2. The lock cylinder according to claim 1, characterized in that:

the one end that back lock courage is close to the shifting block is provided with the connecting piece draw-in groove, the periphery wall of dialling the son after is provided with the connection fixture block, it is in to connect the fixture block joint in the connecting piece draw-in groove.

3. The lock cylinder according to claim 2, characterized in that:

a rear lock cylinder accommodating groove is formed in one side, close to the rear lock cylinder, of the shifting head, and the rear lock cylinder is inserted into the rear lock cylinder accommodating groove;

and a lock cylinder clamping block is arranged in the rear lock cylinder accommodating groove and is clamped with the connecting piece clamping groove.

4. The lock cylinder according to claim 1, characterized in that:

lock courage coupling assembling still includes later dial young spring, later dial young spring mounting in the connecting piece intracavity, later dial young spring first end with later dial young second end butt, later dial young spring second end with the connecting piece chamber the inner wall butt.

5. The lock cylinder according to claim 1, characterized in that:

the push block is provided with a limiting part, and the limiting part is positioned at one end, close to the front poking sub, of the push block.

6. The lock cylinder according to claim 1, characterized in that:

the lock core further comprises a rear knob, and the rear knob is detachably mounted at one end, deviating from the shifting block, of the rear lock liner.

7. The lock cylinder according to any one of claims 1 to 6, characterized in that:

preceding lock courage still is provided with control circuit board, motor, drive block resetting means, locking and hinders bolt and locking bolt, the motor with the control circuit board electricity is connected, the first end of drive block is installed in the pivot of motor, the second end of drive block with the locking hinders the first end of bolt and connects, drive block resetting means with the drive block cooperation sets up, the locking hinder be provided with on the perisporium of bolt with the locking bolt holding tank that the locking bolt corresponds the setting, the last electrically conductive probe that is provided with of control circuit board, electrically conductive probe's partly stretches into in the key hole.

8. The lock cylinder according to claim 7, characterized in that:

the front lock core is further provided with a motor support, the motor support is detachably mounted on the front lock core, and the motor is mounted on the motor support.

9. The lock cylinder according to claim 7, characterized in that:

the push block is further provided with a position avoiding groove, and an opening of the position avoiding groove faces the locking bolt.

10. A door lock characterized by: the lock comprises a lock cylinder and a key, wherein the key and the lock cylinder can be inserted and pulled;

the lock core is applied to the lock core of any one of claims 1 to 9;

the key comprises a key body, and the key body is matched with the key hole;

when the key body is inserted into the key hole, the push block is pushed to move towards the direction of the rear lock cylinder.

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