CN209761061U

CN209761061U - Electronic lock

Info

Publication number: CN209761061U
Application number: CN201822172493.3U
Authority: CN
Inventors: 董军泰
Original assignee: Shunde Guangdong Micro Electronic Technology Co Ltd
Current assignee: Shunde Guangdong Micro Electronic Technology Co Ltd
Priority date: 2018-12-24
Filing date: 2018-12-24
Publication date: 2019-12-10
Anticipated expiration: 2028-12-24

Abstract

The utility model discloses an electronic lock, which comprises a shell, a spring bolt assembled in the shell, a lever component and an electromagnet, wherein the spring bolt and the lever component are rotatably arranged on the shell, the spring bolt is provided with a spring bolt torsional spring for applying unlocking resilience force to the spring bolt, the lever component is positioned at two ends of a rotating shaft and is respectively a power arm part and a hook part, the electromagnet comprises a conductive winding and an iron core which partially extends out of the conductive winding and is used for driving the lever component to swing, the part of the iron core extending out of the conductive winding is movably connected with the power arm part, a reset spring is arranged between the movable connection part and the conductive winding, the reset spring is sleeved outside the iron core in a semi-compression state, the electronic lock adopts the reset spring to continuously give resilience force to the lever component, the hook part of the lever component is buckled with the real spring bolt, the electronic lock can be prevented from being mistakenly unlocked due to vibration, the assembly is convenient during production and processing.

Description

Electronic lock

Technical Field

The utility model relates to a tool to lock, in particular to electronic lock.

Background

Along with the development of intelligent science and technology, intelligent cabinet is more and more welcomed, and electronic lock is the important part that realizes that intelligent cabinet opens and shuts the door. The electronic lock of the prior art generally includes upper and lower cases and components installed between the upper and lower cases for performing locking and unlocking functions of the electronic lock. For example, patent document No. CN205370176U discloses a novel intelligent electronic cabinet lock, in which a travel switch, a lock tongue torsion spring, an electromagnet, a lever assembly, and an anti-drop torsion spring are disposed between an upper shell and a lower shell of the electronic lock.

When the electronic lock structure is adopted, the spring bolt is hung at one end of the lever in the lever assembly, wherein the lever assembly is continuously applied with elastic force towards the direction of the spring bolt through the anti-falling torsional spring so that the hook is in a locking state. However, the anti-drop torsion spring with the structure has the following disadvantages when the bolt is locked by the anti-drop torsion spring:

Firstly, the center of torsion of anticreep torsional spring is the same with the rotation center of lever, and the length of the effect arm of force of anticreep torsional spring is the distance between its tip and the lever rotation center this moment, and this distance is shorter relatively to lead to the anticreep torsional spring to need dispose great torsion value, need great power to assemble lever subassembly and anticreep torsional spring, influence the convenience of electronic lock assembly.

Secondly, as is apparent from the drawings in the patent document with the publication number "CN 205370176U", the anti-disengagement torsion spring at the transition part between the lever fulcrum and the acting force arm easily prevents the lock tongue from being clamped into the lever assembly, and at this time, the lock tongue can be locked with a large force, and meanwhile, the part of the anti-disengagement torsion spring at the lever assembly fulcrum is also easily ejected out of the lock tongue to cause the false unlocking.

Disclosure of Invention

In order to overcome the hindrance of prior art anticreep torsional spring to the spring bolt, the utility model provides an electronic lock.

The utility model provides a technical scheme that its technical problem adopted is:

The utility model provides an electronic lock, includes shell and spring bolt, lever assembly and the electro-magnet of assembly in the shell, spring bolt and lever assembly rotate to be installed on the shell, the spring bolt disposes the spring bolt torsional spring that is used for applying the resilience force of unblanking to it, lever assembly is located its pivot both ends and is power arm and couple portion respectively, the electro-magnet includes conductive winding and local stretching out conductive winding just is used for driving lever assembly wobbling iron core, the iron core stretch out conductive winding's part with power arm swing joint, and swing joint department with be equipped with reset spring between the conductive winding, reset spring is used for applying the spring force to power arm direction to the iron core.

preferably, the lever assembly comprises a lock hook body and a screw rod, the middle part of the lock hook body is the rotation center of the lever assembly, the screw rod is in threaded connection with one end of the lock hook body, and the screw rod is movably connected with the iron core.

Preferably, the tail end of the iron core, which extends out of the conductive winding, is provided with a widened tail, the return spring is arranged between the conductive winding and the widened tail, the widened tail is provided with a through hole, and the screw rod penetrates through the through hole.

Preferably, the power arm of the lever assembly is hinged to the iron core.

Preferably, the return spring is a tower-shaped spring, and the small head end of the tower-shaped spring is close to the movable connection part of the power arm part and the iron core.

Preferably, conductive winding sets up in an electro-magnet protective housing, electro-magnet protective housing surface is equipped with the screens arch, the shell is including covering first casing and the second casing that closes mutually, be equipped with the screens groove with the protruding looks adaptation of screens on first casing and/or the second casing.

preferably, the edge of the first shell is provided with at least two first arc-shaped notches, the edge of the second shell is provided with a second house-type notch matched with the first arc-shaped notches, the first arc-shaped notches and the second arc-shaped notches form wire outlet holes, and the wire outlet holes are distributed on at least two surfaces of the shell.

Preferably, a diode is arranged on a lead for electrifying the electromagnet.

Preferably, the shell with near the spring bolt torsional spring department of offseting is provided with one section and has hierarchical spout, the spring bolt torsional spring strides across the spout, sliding connection has one to contradict in the spout the engage level pole of spring bolt torsional spring, engage level pole exposes the shell.

the utility model has the advantages that: the utility model discloses a reset spring continuously gives resilience force of the power arm of lever assembly, makes the couple portion of lever assembly detain real spring bolt, can prevent that the electronic lock from receiving vibrations and the mistake is unblanked. The reset spring is arranged between the movable connection part and the conductive winding, at the moment, the distance between the reset spring and the hook part is relatively far, and then the hook part can be fastened to the lock tongue by relatively small spring force, so that the electronic lock is convenient to use for a long time and has effectiveness. Furthermore, the utility model discloses an electronic lock installs reset spring on the electro-magnet, can not detain lever assembly to the spring bolt and produce the hindrance, also convenient assembly during production man-hour.

Drawings

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

Fig. 1 is a schematic structural diagram of the electronic lock of the present invention;

Fig. 2 is another visual structural schematic diagram of the electronic lock of the present invention;

Fig. 3 is a schematic structural view of the electronic lock of the present invention with one of the housings removed;

Fig. 4 is a schematic structural view of the electronic lock of the present invention during locking;

Fig. 5 is a schematic structural diagram of the electronic lock of the present invention at the moment of unlocking;

Fig. 6 is a schematic structural view of another visual sense of the electronic lock of the present invention after removing one of the housings.

In the figure: 1. a housing; 11. a chute; 12. a clamping groove; 2. a latch bolt; 3. a lever assembly; 31. a latch hook body; 32. a screw; 4. an electromagnet; 41. an iron core; 411. a through hole; 42. a conductive winding; 43. a clamping bulge; 5. a tongue torsion spring; 6. a return spring; 7. a gear-engaging rod; 8. And a locking ring.

Detailed Description

referring to fig. 1 to 6, the present invention discloses an electronic lock, which comprises a housing 1, and a bolt 2, a lever assembly 3 and an electromagnet 4 assembled in the housing 1, the lock bolt 2 and the lever component 3 are rotatably arranged on the shell 1, the lock bolt 2 is provided with a lock bolt torsion spring 5 for applying unlocking resilience force to the lock bolt 2, the lever component 3 is provided with a power arm part and a hook part at two ends of a rotating shaft thereof, the electromagnet 4 comprises a conductive winding 42 and an iron core 41 which partially extends out of the conductive winding 42 and is used for driving the lever component to swing, the part of the iron core 41 extending out of the conductive winding 42 is movably connected with the power arm part, and a return spring 6 is arranged between the movable connection part and the conductive winding 42, the return spring 6 is sleeved outside the iron core 41 in a semi-compression state, and the return spring 6 is used for applying a spring force to the iron core 41 in the direction of the power arm part. The end part of the hook part is provided with a stop part protruding towards the direction of the bolt, when the bolt is locked, the end part of the bolt 2 is hooked by the stop part, when the bolt is unlocked, the power arm part is pulled towards the direction of the conductive winding under the action of the iron core 41, so that the stop part is lifted towards the direction far away from the bolt 2, and the force hooked by the stop part to the hook part is released.

When locking, the electronic lock is pushed into by the lock ring 8, the lock ring 8 pushes the lock tongue 2 to rotate, the lock tongue 2 overcomes the reset force of the lever component 3 and the lock tongue 2 and is buckled into the lever component 3, the lever component 3 resets, and the hook part fastens the lock tongue. During the unblock, the conductive winding 42 circular telegram of electro-magnet 4 attracts iron core 41, and during the iron core 41 overcame reset spring 6's elasticity retraction conductive winding 42, at this moment, the power arm of lever assembly 3 was drawn to conductive winding 42 by iron core 41 to make the couple portion of lever assembly 3 pulled up, and then spring bolt 2 was released, and spring bolt 2 resets under the effect of the resilience force of unblanking of spring bolt torsional spring 5, realizes unblanking, and conductive winding circular telegram time is very short, and lever assembly 3 resets.

the utility model discloses a reset spring continuously gives resilience force of the power arm of lever assembly, makes the couple portion of lever assembly detain real spring bolt, can prevent that the electronic lock from receiving vibrations and the mistake is unblanked. The reset spring is arranged between the movable connection part and the conductive winding, at the moment, the distance between the reset spring and the hook part is relatively far, and then the hook part can be fastened to the lock tongue by relatively small spring force, so that the electronic lock is convenient to use for a long time and has effectiveness. Furthermore, the utility model discloses an electronic lock installs reset spring on the electro-magnet, can not detain lever assembly to the spring bolt and produce the hindrance, also convenient assembly during production man-hour. It is thus clear that, adopt the utility model discloses a during electronic lock, can easily lock, can guarantee the power of locking again.

The connection mode of the power arm of the lever assembly 3 and the iron core 41 includes, but is not limited to, the following two modes:

In the first mode, the power arm of the lever assembly 3 is hinged with the tail of the iron core 41. Hinging can avoid parts misalignment, but assembly is somewhat difficult.

In the second mode, the lever assembly 3 includes a latch hook body 31 and a screw rod 32, the middle portion of the latch hook body 31 is the rotation center of the lever assembly 3, the screw rod 32 is in threaded connection with one end of the latch hook body 31, and the screw rod 32 is movably connected with the iron core 41. As shown in the figure, the locking hook body 31 includes the entire hook portion and a part of the power arm portion, and the remaining part of the power arm portion is the screw 32. The end of the iron core 41 extending out of the conductive winding 42 is provided with a widened tail, the return spring 6 is arranged between the conductive winding 42 and the widened tail, the widened tail is provided with a through hole 411, and the screw 32 penetrates through the through hole 411. Adopt this kind of structure very convenient assembly, be about to during iron core 41 passes reset spring 6 and inserts conductive winding 42, pass through-hole 411 precession latch hook body 31 with screw rod 32 again, this kind of assembly mode is more convenient when the production equipment than adorning the torsional spring for lever subassembly 3, because the power of torsional spring is great, will be with torsional spring deformation put into shell 1 again, the very easy slippage bullet of torsional spring flies in the assembly.

The return spring 6 is a tower spring, and the small end of the tower spring is close to the movable connection part of the power arm part and the iron core 31. When the return spring 6 is fully compressed, the portion with the smaller radius sinks into the portion with the larger radius, and the spring is more stable.

It should be noted that the electromagnet of the prior art is fixed to the electronic lock at the end far from the iron core, generally by a rivet, and the installation process is complicated. In order to improve the installation of electro-magnet, the utility model discloses an electronic lock carries out screens cooperation installation with electro-magnet and casing. Specifically, conductive winding 42 sets up in an electro-magnet protective housing, electro-magnet protective housing surface is equipped with screens arch 43, shell 1 is including covering first casing 1a and second casing 1b that closes mutually, be equipped with the screens groove 12 with the protruding 43 looks adaptations of screens on first casing 1a and/or the second casing 1b, during the installation, directly imbed the screens groove 12 of one of them casing with the screens arch of electro-magnet in, then with another casing cover can, its installation is convenient, and need not other accessory and lock, be convenient for realize the automatic assembly of electronic lock, and owing to the fastening of less rivet, can also improve the whole aesthetic property of electronic lock. As preferred scheme, the utility model discloses an electronic lock is equipped with four screens archs on the electro-magnet protective housing, and wherein two screens are protruding to be spacing each other with first casing, and two other screens are protruding to be spacing each other with the second casing.

Furthermore, the utility model discloses an in the electronic lock the edge of first casing be equipped with two at least first arc breachs, the edge of second casing be equipped with the second house type breach of first arc breach looks adaptation, first arc breach and second arc breach form wire hole 10, wire hole 10 distributes on two at least faces of shell. The utility model discloses an electronic lock is used for deriving the wire through setting up a plurality of wire holes 10, and during the installation, the user can select the face that the wire was derived according to the demand, and then improves the convenience of electronic lock installation. Preferably, three outlet holes 10 are respectively arranged on three surfaces of the shell, and two of the outlet holes are communicated together, so that the communicated outlet holes 10 are more beneficial to leading out the conducting wires.

Preferably, a diode is arranged on a lead for electrifying the electromagnet. Specifically, the diode is arranged on a lead connected with the anode of the electromagnet, and at the moment, if reverse current is introduced to the electromagnet by mistake, the action of the diode can be blocked, so that the condition of mistakenly unlocking caused by reverse electrification of the electronic lock can be effectively prevented, for example, the directional current generated by an interference signal occurs.

Referring to fig. 2 and 3, a graded sliding groove 11 is formed in the position, where the housing 1 abuts against the spring bolt torsion spring 5, of the housing, the spring bolt torsion spring 5 spans the sliding groove 11, a shift lever 7 abutting against the spring bolt torsion spring 5 is slidably connected in the sliding groove 11, and the shift lever 7 is exposed out of the housing 1. The spring bolt torsion spring 5 is shifted by the gear hanging rod 7 and fixed at different stages of the sliding groove 11, the resilience force of the spring bolt spring 5 can be adjusted outside the shell, and the convenience of adjusting the spring bolt spring 5 is improved.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and decorations can be made without departing from the principle of the invention, and these modifications and decorations are also regarded as the protection scope of the present invention.

Claims

1. The utility model provides an electronic lock, includes shell and the spring bolt of assembly in the shell, lever assembly and electro-magnet, spring bolt and lever assembly rotate to be installed on the shell, the spring bolt disposes the spring bolt torsional spring that is used for applying the resilience force of unblanking to it, its characterized in that the lever assembly is located its pivot both ends and is power arm and couple portion respectively, the electro-magnet includes conductive winding and local stretch out conductive winding just is used for driving lever assembly wobbling iron core, the iron core stretch out conductive winding's part with power arm swing joint, and swing joint department with be equipped with reset spring between the conductive winding, reset spring is used for applying the spring force to power arm direction to the iron core.

2. the electronic lock of claim 1, wherein the lever assembly comprises a latch body and a screw, the middle of the latch body is a rotation center of the lever assembly, the screw is in threaded connection with one end of the latch body, and the screw is movably connected with the iron core.

3. The electronic lock of claim 2, wherein the end of the core extending beyond the conductive winding is provided with a widened tail portion, the return spring is disposed between the conductive winding and the widened tail portion, the widened tail portion is provided with a through hole, and the screw rod passes through the through hole.

4. The electronic lock of claim 1, wherein the power arm portion of the lever assembly is hingedly connected to the plunger.

5. The electronic lock of claim 1 wherein said return spring is a tower spring having a small end proximate the articulation of the power arm portion with the plunger.

6. The electronic lock of claim 1, wherein the conductive winding is disposed in an electromagnet protecting case, the surface of the electromagnet protecting case is provided with a locking protrusion, the outer case comprises a first case and a second case which are covered with each other, and the first case and/or the second case is provided with a locking groove adapted to the locking protrusion.

7. The electronic lock of claim 6, wherein the edge of the first housing has at least two first arc notches, the edge of the second housing has a second house-type notch matching with the first arc notches, the first arc notches and the second arc notches form wire outlets, and the wire outlets are distributed on at least two surfaces of the outer shell.

8. The electronic lock of claim 1, wherein a diode is provided on the wire for energizing the electromagnet.

9. The electronic lock of claim 1, wherein a graded sliding slot is disposed near a position where the housing abuts against the spring bolt torsion spring, the spring bolt torsion spring crosses the sliding slot, a shift lever abutting against the spring bolt torsion spring is slidably connected in the sliding slot, and the shift lever is exposed out of the housing.