CN109577750B - Electronic lock - Google Patents

Abstract

The invention provides an electronic lock, which comprises a lock body; the lock tongue assembly is movably arranged on the lock body; the transmission assembly is movably arranged on the lock body and is connected with the lock tongue assembly; the electric driving mechanism is arranged on the lock body and connected with the transmission assembly, and is used for driving the lock tongue assembly to move in a telescopic manner relative to the lock body; the lock cylinder is arranged on the lock body; one end of the unlocking piece is connected with the lock cylinder, and the other end of the unlocking piece can drive the transmission assembly to rotate so as to enable the lock tongue assembly to move in a telescopic way relative to the lock body; the corner limiting section is arranged on the transmission assembly; the unlocking plate can idle relative to the transmission assembly in the corner limiting interval and can abut against the edge of the corner limiting interval to drive the transmission assembly to rotate; the electronic lock with the structure can realize the function of the electric switch lock through the electric driving mechanism, can realize the function of the manual switch lock through the lock cylinder and the unlocking piece, and can prevent the unlocking piece from driving the lock cylinder to rotate when the electric switch lock is in a rotation angle limiting interval, so that the service life of the lock cylinder is ensured.

Description

Electronic lock

Technical Field

The invention relates to the field of locks, in particular to an electronic lock.

Background

At present, with the development of social life and technology, intelligent home related hardware has been developed as a spring bamboo shoot after rain. The electronic lock is convenient to use as the lock can be opened and closed only by inputting a password or a fingerprint, and the pain of many people in daily life is solved, so that the electronic lock has been rapidly popularized.

However, when the password is forgotten or the fingerprint cannot be identified, the lock needs to be manually opened and closed through the mechanical lock cylinder, the mechanical lock cylinder is mutually connected with the transmission component of the electronic lock, and when the electric driving mechanism is used for unlocking, the mechanical lock cylinder is linked to rotate, so that the mechanical lock cylinder is easy to damage after being used for many times. If the mechanical lock core can not be linked with the transmission component under the action of the electric driving mechanism, a clutch device is required to be arranged between the transmission component and the mechanical lock core, so that the internal structure of the electronic lock is more complex, and the manufacturing cost and the difficulty are increased.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the electronic lock which can realize manual and electric switch of the lock and can avoid driving the lock cylinder to rotate when the lock is opened or closed electrically, so that the service life of the lock cylinder is ensured.

The technical scheme adopted for solving the technical problems is as follows:

an electronic lock, comprising: a lock body; the lock tongue assembly is movably arranged on the lock body; the transmission assembly is movably arranged on the lock body and is connected with the lock tongue assembly; the electric driving mechanism is arranged on the lock body and connected with the transmission assembly, and is used for driving the lock tongue assembly to move in a telescopic manner relative to the lock body; the lock cylinder is arranged on the lock body; one end of the unlocking piece is connected with the lock cylinder, and the other end of the unlocking piece can drive the transmission assembly to rotate so as to enable the lock tongue assembly to move in a telescopic way relative to the lock body; the corner limiting section is arranged on the transmission assembly; the unlocking piece can idle relative to the transmission assembly in the corner limiting interval and can lean against the edge of the corner limiting interval to drive the transmission assembly to rotate.

The transmission assembly comprises a rotating piece and a shifting fork which are arranged on the lock body in a rotating mode, the shifting fork is connected with the lock tongue assembly and the rotating piece respectively, the rotating piece is connected with the electric driving mechanism, the corner limiting section comprises a through hole which is formed in the middle of the rotating piece and used for the unlocking piece to pass through, a first limiting surface and a second limiting surface which form an included angle with each other are arranged on the through hole, and the unlocking piece can idle between the first limiting surface and the second limiting surface and can abut against the first limiting surface or the second limiting surface.

The electric driving mechanism comprises a servo motor and a reduction gear set connected with the servo motor, and an output gear of the reduction gear set is meshed with the rotating piece through a tooth-shaped structure.

The lock body is also movably provided with a guide rod, one end of the guide rod is connected with an inclined tongue, the transmission assembly further comprises a second rotating piece which is rotatably arranged on the lock body and is connected with the shifting fork, and the second rotating piece can be abutted against the other end of the guide rod so that the inclined tongue extends out of the lock body.

One end of the guide rod, which is far away from the inclined tongue, is connected with a shifting piece, the shifting piece is rotationally arranged on the lock body, a connecting rod for driving the shifting piece to rotate is pivoted on the shifting piece, the other end of the connecting rod is movably arranged on the lock tongue assembly, a first driving part for driving the connecting rod to swing so as to drive the inclined tongue on the guide rod to retract into the lock body is arranged on the rotating piece, and an elastic piece for driving the inclined tongue on the guide rod to extend out of the lock body is also connected between the guide rod and the lock body.

The lock body is provided with a first travel switch and a second travel switch which are electrically connected with the electric driving mechanism, the first travel switch can be triggered when the lock tongue component stretches out relative to the lock body, and the second travel switch can be triggered when one end of the guide rod, which is far away from the inclined tongue, stretches back relative to the lock body.

The lock tongue assembly is arranged on the lock body in a sliding manner, a first guide groove is formed in the lock tongue assembly, the length direction of the first guide groove is parallel to the telescopic direction of the lock tongue assembly, a first guide column matched with the first guide groove is arranged on the lock body, and the first guide column is a rotating shaft of the shifting fork.

Be equipped with second drive division on the rotating member, seted up on the shift fork with second drive division complex transmission recess, second drive division can get into in the transmission recess and drive the shift fork rotates, be provided with the second guide post on the shift fork, be equipped with on the spring bolt subassembly with second guide post matched with second guide slot, during the shift fork rotates, the second guide post can be at the second guide slot internal motion and release the spring bolt subassembly outwards.

The lock body is vertically provided with two safety hooks in a sliding manner, a linkage mechanism is arranged between the lock tongue component and the two safety hooks, and the two safety hooks are driven to move in a deviating manner in the vertical direction through the linkage mechanism when the lock tongue component stretches out to move.

The linkage mechanism comprises two transmission grooves which are respectively and correspondingly arranged on the two safety hooks, the transmission grooves incline with the telescopic direction of the lock tongue assembly, two third guide posts which are in one-to-one correspondence with the two transmission grooves are arranged on the lock tongue assembly, and the two safety hooks are driven to deviate from movement when the third guide posts follow the lock tongue assembly to extend outwards.

The beneficial effects of the invention are as follows: the electronic lock with the structure can realize the function of the electric switch lock through the electric driving mechanism, can realize the function of the manual switch lock through the lock cylinder and the unlocking piece, and can prevent the unlocking piece from driving the lock cylinder to rotate when the electric switch lock is in a rotation angle limiting interval, so that the service life of the lock cylinder is ensured.

Drawings

The invention will be further described with reference to the drawings and examples.

FIG. 1 is a schematic view of a portion of the structure of the present invention;

FIG. 2 is a schematic view of the combination of the lock cylinder, the unlocking plate, the rotary member, the fork and the latch bolt assembly;

FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;

fig. 4 is a schematic view of a combination of a fork, a latch bolt assembly and a safety hook.

Detailed Description

The present invention will be described in further detail with reference to the drawings and the detailed description, but it should be understood that the following description is illustrative of the embodiments and is not to be construed as limiting the invention.

Referring to fig. 1 to 4, an electronic lock includes: a lock body 1; the lock tongue assembly 20 is movably arranged on the lock body 1; the transmission assembly 70 is movably arranged on the lock body 1 and is connected with the lock tongue assembly 20; the electric driving mechanism 30 is arranged on the lock body 1, is connected with the transmission assembly 70 and is used for driving the lock tongue assembly 20 to move in a telescopic way relative to the lock body 1; a lock cylinder 4 arranged on the lock body 1; an unlocking plate 5, one end of which is connected with the lock cylinder 4, and the other end of which can drive the transmission assembly 70 to rotate so as to enable the bolt assembly 20 to move telescopically relative to the lock body 1; the corner limiting section 6 is arranged on the transmission assembly 70; the unlocking piece 5 can idle relative to the transmission assembly 70 in the rotation angle limiting section 6, and can abut against the edge of the rotation angle limiting section 6 to drive the transmission assembly 70 to rotate. The electronic lock of above structure can realize the function of electric switch lock through electric drive mechanism 30, can realize the function of manual switch lock through lock core 4 and unblank piece 5 to utilize spacing interval 6 of corner to make when electric switch lock avoid unblanking piece 5 to drive lock core 4 rotation, thereby ensure the life of lock core 4.

In this embodiment, the transmission assembly 70 includes a rotating member 71 and a shifting fork 72 rotatably disposed on the lock body 1, the shifting fork 72 is connected with the latch bolt assembly 20 and the rotating member 71, the rotating member 71 is coupled with the electric driving mechanism 30, the corner limiting section 6 includes a through hole formed in the middle of the rotating member 71 and through which the unlocking sheet 5 passes, the through hole is provided with a first limiting surface and a second limiting surface which form an included angle therebetween, and the unlocking sheet 5 can idle between the first limiting surface and the second limiting surface and can abut against the first limiting surface or the second limiting surface. Here, the angle between the first limiting surface and the second limiting surface is about 90 °, and in order to increase the idle angular range of the lock cylinder 4, referring to fig. 3, a mounting pin is disposed at the end of the lock cylinder 4 connected to the unlocking plate 5, and a mounting hole with a diameter far greater than that of the mounting pin is formed in the unlocking plate 5, so that the end of the unlocking plate 5 connected to the lock cylinder 4 can deflect a certain angle with respect to the lock cylinder 4, where the deflection angle is about 45 °. The electric driving mechanism 30 drives the rotating member 71 to rotate clockwise or anticlockwise to complete unlocking or locking functions, and the rotating member 71 idles relative to the unlocking plate 5 in the rotating stroke, so that the lock cylinder 4 is prevented from being damaged in rotation; when the lock cylinder 4 is needed to be used for opening and closing the lock, the unlocking piece 5 is only required to be rotated by a certain angle to enable the unlocking piece 5 to be abutted against the first limiting surface or the second limiting surface, and the unlocking piece 5 is further rotated, so that the unlocking or locking action can be completed.

The electric driving mechanism 30 comprises a servo motor and a reduction gear set connected with the servo motor, and an output gear of the reduction gear set is meshed with the rotating member 71 through a tooth-shaped structure. When the key is used for inserting the lock core 4 for unlocking, the motor is in a power-off state, the rotating piece 71 can drive the output gear of the reduction gear set to rotate, so that the rotating shaft of the motor is driven to rotate, and compared with a traditional driving mechanism consisting of the motor and the worm gear, the electric driving mechanism 30 can avoid the situation that the motor is blocked and cannot rotate when the lock is manually unlocked, and ensure that the function of manual unlocking is not influenced.

As a preferred embodiment of the present invention, the lock body 1 is further movably provided with a guide rod 8, one end of the guide rod 8 is connected with a latch 81, the transmission assembly 70 further includes a second rotating member 73 rotatably provided on the lock body 1, the second rotating member 73 is coupled to the shift fork 72, and the second rotating member 73 can abut against the other end of the guide rod 8 to enable the latch 81 to extend out of the lock body 1.

One end of the guide rod 8 far away from the inclined tongue 81 is connected with a pulling piece 91, the pulling piece 91 is rotatably arranged on the lock body 1, a connecting rod 92 for driving the pulling piece 91 to rotate is pivoted on the pulling piece 91, the other end of the connecting rod 92 is movably arranged on the lock tongue assembly 20, a first driving part 711 for driving the connecting rod 92 to swing so as to drive the inclined tongue 81 on the guide rod 8 to retract into the lock body 1 is arranged on the rotating piece 71, and an elastic piece 82 for driving the inclined tongue 81 on the guide rod 8 to extend out of the lock body 1 is also connected between the guide rod 8 and the lock body 1.

Preferably, the lock body 1 is provided with a first travel switch 11 and a second travel switch 12 electrically connected with the electric driving mechanism 30, the first travel switch 11 can be triggered when the lock tongue assembly 20 extends relative to the lock body 1, and the second travel switch 12 can be triggered when one end of the guide rod 8, which is far away from the inclined tongue 81, retracts relative to the lock body 1. The electric driving mechanism 30 is also internally provided with a controller, and when the first travel switch 11 or the second travel switch 12 is triggered, the controller can control the motor to stop rotating, so that electric energy is saved.

The lock tongue assembly 20 is slidably arranged on the lock body 1, a first guide groove 21 is formed in the lock tongue assembly 20, the length direction of the first guide groove 21 is parallel to the telescopic direction of the lock tongue assembly 20, a first guide column matched with the first guide groove 21 is arranged on the lock body 1, and the first guide column is the rotating shaft of the shifting fork 72, so that the structure of the electronic lock is facilitated to be simplified.

The rotating member 71 is provided with a second driving portion 712, the shift fork 72 is provided with a transmission groove 721 matched with the second driving portion 712, the second driving portion 712 can enter the transmission groove 721 and drive the shift fork 72 to rotate, the shift fork 72 is provided with a second guide post 722, the lock tongue assembly 20 is provided with a second guide groove 22 matched with the second guide post 722, and when the shift fork 72 rotates, the second guide post 722 can move in the second guide groove 22 and push the lock tongue assembly 20 outwards.

Preferably, two safety hooks 10 are vertically slidably disposed on the lock body 1, a linkage mechanism is disposed between the lock tongue assembly 20 and the two safety hooks 10, and when the lock tongue assembly 20 stretches out, the two safety hooks 10 can be driven to move away from each other in the vertical direction through the linkage mechanism.

The linkage mechanism comprises two transmission grooves 111 which are respectively and correspondingly arranged on the two safety hooks 10, the transmission grooves 111 are inclined with the telescopic direction of the lock tongue assembly 20, two third guide posts 112 which are in one-to-one correspondence with the two transmission grooves 111 are arranged on the lock tongue assembly 20, and the third guide posts 112 drive the two safety hooks 10 to deviate from movement when outwards extending along with the lock tongue assembly 20, so that the two safety hooks 10 are fixed on the upper edge and the lower edge of a door frame, and the safety performance of a door locking state is improved.

The working process of the electronic lock is as follows: as shown, the electric driving mechanism 30 drives the rotating member 71 to rotate counterclockwise, so that the second driving part 712 can enter the transmission groove 721 and drive the shifting fork 72 to rotate, the second guide post 722 on the shifting fork 72 moves in the second guide groove 22 and pushes the latch bolt assembly 20 outwards, meanwhile, the shifting fork 72 drives the second rotating member 73 to rotate counterclockwise, the second rotating member 73 abuts against one end of the guide rod 8 away from the inclined tongue 81 so that the inclined tongue 81 extends out of the lock body 1, meanwhile, during the outward pushing of the latch bolt assembly 20, the third guide post 112 on the latch bolt assembly 20 moves in the transmission groove 111 on the safety hook 10, and the third guide post 112 drives the two safety hooks 10 to move away in the vertical direction.

While the preferred embodiment of the present invention has been illustrated and described, it will be understood by those skilled in the art that the present invention may be embodied in other specific forms and equivalents thereof without departing from the spirit of the invention.

Claims (9)

1. An electronic lock, comprising:

a lock body;

the lock tongue assembly is movably arranged on the lock body;

the transmission assembly is movably arranged on the lock body and is connected with the lock tongue assembly;

the electric driving mechanism is arranged on the lock body and connected with the transmission assembly, and is used for driving the lock tongue assembly to move in a telescopic manner relative to the lock body;

the lock cylinder is arranged on the lock body;

one end of the unlocking piece is connected with the lock cylinder, and the other end of the unlocking piece can drive the transmission assembly to rotate so as to enable the lock tongue assembly to move in a telescopic way relative to the lock body;

the corner limiting section is arranged on the transmission assembly;

the unlocking piece can idle relative to the transmission assembly in the corner limiting interval and can abut against the edge of the corner limiting interval to drive the transmission assembly to rotate;

the transmission assembly comprises a rotating piece and a shifting fork which are arranged on the lock body in a rotating mode, the shifting fork is connected with the lock tongue assembly and the rotating piece respectively, the rotating piece is connected with the electric driving mechanism, the corner limiting section comprises a through hole which is formed in the middle of the rotating piece and used for the unlocking piece to pass through, a first limiting surface and a second limiting surface which form an included angle with each other are arranged on the through hole, the unlocking piece can idle between the first limiting surface and the second limiting surface and can abut against the first limiting surface or the second limiting surface, and the included angle between the first limiting surface and the second limiting surface is about 90 degrees.

2. An electronic lock according to claim 1, wherein,

the electric driving mechanism comprises a servo motor and a reduction gear set connected with the servo motor, and an output gear of the reduction gear set is meshed with the rotating piece through a tooth-shaped structure.

3. An electronic lock according to claim 1, wherein,

the lock body is also movably provided with a guide rod, one end of the guide rod is connected with an inclined tongue, the transmission assembly further comprises a second rotating piece which is rotatably arranged on the lock body and is connected with the shifting fork, and the second rotating piece can be abutted against the other end of the guide rod so that the inclined tongue extends out of the lock body.

4. An electronic lock according to claim 3, wherein,

one end of the guide rod, which is far away from the inclined tongue, is connected with a shifting piece, the shifting piece is rotationally arranged on the lock body, a connecting rod for driving the shifting piece to rotate is pivoted on the shifting piece, the other end of the connecting rod is movably arranged on the lock tongue assembly, a first driving part for driving the connecting rod to swing so as to drive the inclined tongue on the guide rod to retract into the lock body is arranged on the rotating piece, and an elastic piece for driving the inclined tongue on the guide rod to extend out of the lock body is also connected between the guide rod and the lock body.

5. An electronic lock according to claim 4, wherein,

the lock body is provided with a first travel switch and a second travel switch which are electrically connected with the electric driving mechanism, the first travel switch can be triggered when the lock tongue component stretches out relative to the lock body, and the second travel switch can be triggered when one end of the guide rod, which is far away from the inclined tongue, stretches back relative to the lock body.

6. An electronic lock according to claim 1, wherein,

the lock tongue assembly is arranged on the lock body in a sliding manner, a first guide groove is formed in the lock tongue assembly, the length direction of the first guide groove is parallel to the telescopic direction of the lock tongue assembly, a first guide column matched with the first guide groove is arranged on the lock body, and the first guide column is a rotating shaft of the shifting fork.

7. An electronic lock according to claim 1, wherein,

be equipped with second drive division on the rotating member, seted up on the shift fork with second drive division complex transmission recess, second drive division can get into in the transmission recess and drive the shift fork rotates, be provided with the second guide post on the shift fork, be equipped with on the spring bolt subassembly with second guide post matched with second guide slot, during the shift fork rotates, the second guide post can be at the second guide slot internal motion and release the spring bolt subassembly outwards.

8. An electronic lock according to claim 1, wherein,

the lock body is vertically provided with two safety hooks in a sliding manner, a linkage mechanism is arranged between the lock tongue component and the two safety hooks, and the two safety hooks are driven to move in a deviating manner in the vertical direction through the linkage mechanism when the lock tongue component stretches out to move.

9. An electronic lock according to claim 8, wherein,

the linkage mechanism comprises two transmission grooves which are respectively and correspondingly arranged on the two safety hooks, the transmission grooves incline with the telescopic direction of the lock tongue assembly, two third guide posts which are in one-to-one correspondence with the two transmission grooves are arranged on the lock tongue assembly, and the two safety hooks are driven to deviate from movement when the third guide posts follow the lock tongue assembly to extend outwards.