CN101871285A

CN101871285A - Electronic lock

Info

Publication number: CN101871285A
Application number: CN 201010209072
Authority: CN
Inventors: 萧庆国; 王峰
Original assignee: Print Rite Technology Development Co Ltd of Zhuhai
Current assignee: Print Rite Technology Development Co Ltd of Zhuhai
Priority date: 2010-06-25
Filing date: 2010-06-25
Publication date: 2010-10-27

Abstract

The invention relates to an electronic lock. The electronic lock comprises a shell, a lock core, a circuit part, a lock core driving part, a battery and a power generation device, wherein the lock core, the circuit part, the lock core driving part and the battery are arranged in the shell, the power generation device is connected to the battery in parallel and comprises a generator and a variable speed gear connected with a generator shaft, the shell is also internally provided with a stayguy wheel as the power input of the variable speed gear and a stayguy wound on the stayguy wheel, one end of a connection wire is fixed on the stayguy wheel, the other end is located outside the shell, and the shell is also internally provided with an elastic device enabling the stayguy wheel to be in the take-up state. Because the elastic device enabling the stayguy wheel to be in the take-up state is arranged, the connection wire is in the normal state of winding a wire accumulating groove of the stayguy wheel under the effect of the elastic resilience, the variable speed gear acquires a power input once the stayguy is pulled to be located at the other end outside the shell, and because the stayguy can be arranged relatively longer, the torque generated by pulling once is sufficient to enable the generator to generate adequate power to drive the electronic lock.

Description

Electronic lock

Technical field

The present invention relates to electronic lock, especially a kind of electronic lock that improves generating device structure.

Background technology

Electronic lock is made of lock core, circuit part, the lock core drive part of mechanical part usually, certainly, also has the battery as power source.The structure of existing lock core is varied, and the most basic is the dead bolt that has been used for the keying effect, and the available circuit part then mainly contains information identification circuit, drive circuit etc., and existing lock core drive part normally drives the electric clutch or the like of lock core action.

The development that is accompanied by electronics, mechanics of communication is constantly perfect, the electronic lock security performance also improves day by day, yet, electronic lock needs battery as power source, the electric weight of battery has certain limiting the quantity of, once electric weight is used up in the process that electronic lock opens and closes, with the phenomenon that occurs not locking or not opening, this has brought inconvenience for the use of electronic lock.

For addressing this problem, the application of CN1730877A Chinese invention patent has proposed a technical solution, this scheme the lock deckle board in except that the conventional component that are provided with electronic lock, also be provided with a flywheel self-powering apparatus, this device is by driving gear, be molded over the rhombic plate of driving gear bottom center, symmetry is set in two cursors on the fixed axis at two ends, this rhombus flap surface, flywheel and microgenerator are formed, in addition, lock deckle board external surface is equiped with handgrip, one end of handgrip is connected with handgrip turning gear in the lock deckle board, the handgrip turning gear includes the flap that can make flexible element that handgrip resets and edge form arc-shaped rack, the input gears engaged of the arc-shaped rack of flap and driving gear set.When each rotation handgrip is unblanked, promptly be a charging process, remain enough electric weight in the use.But the design scheme of all charging makes effectively to bring into play the application life of TRT at every turn, and, rotating handgrip drives generator also to exist stroke shorter, if really run into the situation that the battery dead electricity is too much, electronic lock can't normally open and close, must repeatedly rotate handgrip repeatedly charges, this can not bring convenience to them concerning self power generation structure is not very clear user.

In addition, also having manyly has the electronic lock scheme of self power generation scheme to appear in the disclosed patent documentation, but a common weak point is arranged, exactly must turn handle or constantly press button or plug key constantly constantly, drive generator work generating, as previously mentioned, this is defective to a user who does not know principle, especially for the hotel, the electronic lock in hotel, the guest rotates one, the secondary handle is common selection, yet, rotate one, the electricity that secondary sends may not necessarily satisfy the needed electric energy of electronic lock switching motion, places hope on each guest who moves in and know all fully aware ofly that repeatedly it is unpractical that handle generates electricity during the battery dead electricity in electronic lock takes place.

Summary of the invention

Main purpose of the present invention provides a kind of electronic lock that improves generating device structure.

For achieving the above object, electronic lock provided by the invention comprises housing and is arranged on lock core, circuit part, lock core drive part, the battery in the housing and is connected in parallel on TRT on the described battery.TRT comprises a generator, a speed change gear that connects generator shaft, also be provided with a wire-drawing wheel as the input of speed change gear power in the housing, also has a backguy that is wrapped on the wire-drawing wheel, wiring one end is fixed on the wire-drawing wheel, the other end is positioned at outside the described housing, also is provided with an elastic device that makes wire-drawing wheel be in take-state in the housing.

By above scheme as seen, owing to be provided with the elastic device that makes wire-drawing wheel be in take-state, under the effect of elastic restoring force, wiring is in the normality that is wrapped in the wiring wheel storage wire casing, once the pulling backguy is positioned at the outer other end of housing, speed change gear power input of will attaining the Way, because backguy can be oppositely arranged longlyer, pulling once can be to send the enough electric power that drives electronic lock.

A concrete scheme is that elastic device is that an end is fixed in the housing, and the other end is fixed on wire-drawing wheel or the disc spring on it.

Another concrete scheme is that elastic device is made of by the flexible cable that an extension spring is fixed in the housing, the other end is fixed on the backguy wheel shaft an end.

In addition, the hole that the other end of backguy can be positioned on the housing lower surface certainly in the above scheme passes housing; Also the hole that can be positioned at certainly on the housing front passes described housing, and scheme is also to be provided with a directive wheel in the housing this moment more specifically, and the backguy that is wrapped on the wire-drawing wheel passes hole on the described housing front through make the other end from directive wheel.

Description of drawings

Fig. 1 is the front view of the embodiment of the invention; Fig. 2 is the rear elevation of Fig. 1, has omitted some parts of electronic lock among Fig. 2; Fig. 3 is the A-A sectional view of Fig. 2; Fig. 4 is the B partial enlarged drawing of Fig. 3; Fig. 5 is the STRUCTURE DECOMPOSITION figure of TRT; Fig. 6 is the C partial enlarged drawing of Fig. 5; Fig. 7 is the structural representation of elastic device in another embodiment of the present invention.

Be described further below in conjunction with embodiments of the invention and accompanying drawing.

The specific embodiment

Referring to Fig. 1, according to this face of an electronic lock of the present invention is the face that is positioned at outer side of door after installing, it has a housing 1, a rotating door outer handle 2, the overhanging end 52 of a backguy that the hole passes on housing 1 bottom surface, also be provided with electronics badge recognition window 11 on housing 1 front, use when just swiping the card for the information identification circuit input signal in the housing 1.

Referring to Fig. 2, for the purpose of explanation the present invention is clear, simple and direct, this is the rear elevation that has omitted among Fig. 1 in housing 1 back shroud and the inner chamber 12 behind the component same as the prior art such as the lock core that is provided with, circuit part, lock core drive part, battery, also be provided with a wire-drawing wheel 4 in the inner chamber of housing 1, an end that is wrapped in the backguy 5 in wire-drawing wheel 4 grooves is fixed on the wire-drawing wheel 4, and stretch out outside the housing 1 in the hole that the other end 52 passes on housing 1 bottom surface 14.Obviously, as an other embodiment, the other end 52 of backguy also can be walked around one and be arranged on similar structures such as directive wheel in the housing 1 or guide ring and pass from the front 13 of housing 1, and such scheme can be that the stroke of backguy 5 is longer relatively.

Referring to Fig. 3 to Fig. 6, the inboard in housing 1 front 13 is fixed with one 30, and axle is fixed with generator on 30, and wherein, axle 30 is static relatively for the stator coil 31 of generator, is fixed as one as the magnet ring and a ratchet of rotor 32.Speed change gear then is made of a pinion 33 that has a pair of gravity friction-type ratchet and a gear wheel 34, and wherein, gear wheel 34 and wire-drawing wheel 4 be coaxial fixedlys connected or coaxial integrally manufactured.Disc spring 6 one ends are fixed on the wheel shaft of wire-drawing wheel 4, and the other end is fixed on the housing 1.

As additional embodiments, disc spring 6 as elastic device can be replaced by an extension spring and one section flexible cable, referring to Fig. 7, for say something clear for the purpose of, other structure such as housings in Fig. 21 identical of present embodiment with a last embodiment, generator, speed change gears etc. all omit, only show the difference of present embodiment, the hook 81 of extension spring 8 one ends can be fixed on the inboard in housing 1 front 13, for example be hooked in the earhole on positive 13 inboards, 82 of the other ends connect an end of flexible cable 9, the other end of flexible cable 9 twines and is fixed on the axle of wire-drawing wheel 4, like this, during pulling backguy 5, flexible cable 9 can be wrapped on the axle of wire-drawing wheel 4, thereby makes extension spring 8 produce the restoring force that backguy 5 is resetted.

Main design of the present invention is by a wire-drawing wheel and is wrapped in backguy on the wire-drawing wheel and improves existing once-through operation action and make generator rotate the less deficiency of the number of turns that under this design, speed change gear can also have multiple conspicuous variation.

Claims

1. electronic lock comprises

Housing and be arranged on lock core, circuit part, lock core drive part, the battery in the described housing and be connected in parallel on TRT on the described battery;

Described TRT comprises a generator, and one connects the speed change gear of generator shaft;

It is characterized in that:

Also be provided with a wire-drawing wheel as described speed change gear power intake in the described housing;

Backguy one end that is wrapped on the described wire-drawing wheel is fixed on the described wire-drawing wheel, and the other end is positioned at outside the described housing;

Also being provided with one in the described housing makes described wire-drawing wheel be in the elastic device of take-state.

2. electronic lock according to claim 1 is characterized in that:

Described elastic device is that an end is fixed in the described housing, and the other end is fixed on described wire-drawing wheel or the disc spring on it.

3. electronic lock according to claim 1 is characterized in that:

Described elastic device is made of by the flexible cable that an extension spring is fixed in the described housing, the other end is fixed on the described backguy wheel shaft an end.

4. according to each described electronic lock of claim 1 to 3, it is characterized in that:

The other end of described backguy passes described housing from the hole that is positioned on the described housing lower surface.

5. according to each described electronic lock of claim 1 to 3, it is characterized in that:

The other end of described backguy passes described housing from the hole that is positioned on the described housing front.

6. electronic lock according to claim 5 is characterized in that:

Also be provided with a directive wheel in the described housing, the described backguy that is wrapped on the described wire-drawing wheel passes described hole on the described housing front through make the described other end from described directive wheel.