CN2825862Y

CN2825862Y - Digital lock

Info

Publication number: CN2825862Y
Application number: CN 200520061923
Authority: CN
Inventors: 彭爱民
Original assignee: SHENZHEN LOCSTAR TECHNOLOGY Co Ltd
Current assignee: SHENZHEN LOCSTAR TECHNOLOGY Co Ltd
Priority date: 2005-07-21
Filing date: 2005-07-21
Publication date: 2006-10-11
Anticipated expiration: 2015-07-21

Abstract

The utility model provides a digital lock which comprises a lock body, a lock core arranged in the lock body, a circuit board provided with a control circuit, an electric machine, a transmission mechanism and a shift fork, wherein the electric machine and the transmission mechanism are arranged in the lock core, and the output shaft of the electric machine and a worm shaft of the transmission mechanism are positioned on the same shaft line. The utility model has the advantages of simple structure, compact structure, high reliability and good manufacturability.

Description

Puzzle lock

Technical field

The utility model relates to lock, particularly a kind of puzzle lock.

Background technology

The tapered end that general door lock is equipped with is mechanical lock head or magnetic control tapered end mostly, this two classes tapered end is all got up by some hoodle permutation and combination, or it is higher or in the magnetic repulsion structure of scolding, be easy to verify the polarity and the position of hoodle because of the same sex because of hoodle permutation and combination repetitive rate, the ability of this two classes tapered end prevention technique unlatching is all very low, is easier to be opened by the lawless person.Given this, a lot of producers have released the key of tooth forms such as selenodont to improving on the tooth form of key and the hoodle, though strengthened difficulty of technical opening to a certain extent, but still can't the Best available control technology unlatching.

So part producer has released a kind of puzzle lock, this puzzle lock is by certain electrical cooperation of key and circuit board, and starter motor drives the shift fork motion, realizes the unlatching of tapered end or closes.Because the key of this puzzle lock and circuit board electrical cooperates and can take electronics to become the sign indicating number technology to control, therefore, can effectively prevent the poly-talented unlatching of tapered end.But the reliability of structure of present this puzzle lock does not also reach the requirement of actual use.Provide " lock electricity consumption type slide plate moves back and draws travel mechanism " as No. 01243139.7 institute of Chinese patent, its drive mechanism is comparatively complicated, and because its motor and power transmission shaft, slide block and slide plate etc. finally realize unlatching by the non-same axial transmission of shifting block outside gear train and the slide block respectively or close, so dependability is lower.

The utility model content

The technical problems to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of puzzle lock is provided, its simple and compact structure, dependability height.

The utility model provides a kind of puzzle lock, comprise lock body, be located at lock core, the circuit board that is provided with control circuit, motor, transmission mechanism and shift fork in the lock body, it is characterized in that described motor and described transmission mechanism be located in the lock core, and the worm shaft of the output shaft of this motor and transmission mechanism is positioned on the same axis.

Described lock core is provided with the lock core hole of confession key insertion and the accepting hole that both sides penetrate the lock core wall, and described motor is located on the described circuit board, and this circuit board is located in the lock core hole of described lock core, and described transmission mechanism is located in the accepting hole of described lock core.

Described transmission mechanism also comprises cam, clutch block and driving spring, and its cam is set on the output shaft of described motor; Worm shaft passes from clutch block, and it extends, and an end is placed on the output shaft of described motor in the two ends of clutch block, cooperates set groove fit on the inwall of the other end and described lock core with described cam; Driving spring is placed on the described worm shaft, is positioned at clutch block inside, and the one end is spacing by set projection on the worm shaft, but other end butt clutch block inwall.

Described lock body is provided with through hole, and described lock core is positioned at this through hole, and this lock body convexes with catch on its inwall, forms a locating slot between per two catch, and the clutch block outside of described lock core convexes with the locating piece that can cooperate with described locating slot.

Described puzzle lock further comprises hoodle, one end of described lock body is provided with first spacing hole longitudinally, described lock core is provided with second spacing hole that is communicated with this first spacing hole, and this second spacing hole is communicated with the set lock core hole that inserts for key of lock core, and described hoodle places this first spacing hole and second spacing hole movably.

Described shift fork is located at the other end of described lock body with respect to the key insertion end, fixedlys connected with described lock core.

Described circuit board is provided with initialisation switch.

The beneficial effects of the utility model:

1, simple in structure, compact, the reliability height, good manufacturability is fit to produce in enormous quantities;

2, control circuit, motor, transmission mechanism are located in the lock core, compact conformation, the integrated level height, and on appearance and size fully compatible traditional mechanical lock head, can directly substitute use;

3, motor, transmission mechanism are placed on same the axis, reliable transmission height, and the application of cam guaranteed the flexible transmission of No Load Start, worm shaft and the driving spring of motor makes in the transmission process more reliable;

4, realize lock core and effective closure of lock body and folding by cooperating of clutch block and lock body, make the use safety and reliability of this puzzle lock;

5, the application of hoodle is played and is determined the key original position and prevent the effect that key comes off in rotation, and it is convenient and reliable to have guaranteed that effectively key uses;

6, be provided with initialisation switch, and can be by stirring the setting of this initialisation switch change key, simple to operate, good concealment, reliability height.

Description of drawings

Fig. 1 is that the utility model is faced structural representation under key insertion state.

Fig. 2 is that the utility model is worked as the plan structure schematic diagram under the key insertion state.

The specific embodiment

As shown in Figure 1, 2, the utility model puzzle lock comprises lock body 1, lock core 2, circuit board 3, motor 4, transmission mechanism 5 and shift fork 6.

Wherein be provided with through hole 11 in the lock body 1, this lock body 1 respectively convexes with a pair of catch 12 radially symmetrically on inwall, forms a locating slot (figure does not show) between every pair of catch 12.The end that this lock body 1 inserts in its key 7 is provided with first spacing hole 14 with through hole 11 axial vertical (longitudinally) and perforation.

Lock core 2 is located in the through hole 11 of lock body 1, be provided with the lock core hole 21 of confession key 7 insertions and the accepting hole 22 that both sides penetrate the lock core wall in it, and its corresponding first spacing hole 14 of an end that inserts in key 7 is provided with second spacing hole 24 axially vertical with lock core hole 21 and that connect, and this second spacing hole 24 is communicated with first spacing hole 14.Hoodle 25 places in first spacing hole 14 and second spacing hole 24 movably.This lock core 1 also has tapered end cover 23 in the end envelope that its key 7 inserts.

Motor 4 is located on the circuit board 3, and this circuit board 3 places in the lock core hole 21 of lock core 2.Also be provided with the control circuit (figure does not show) and the initialisation switch 31 that can cooperate starter motor 4 on this circuit board 3 with key.

Transmission mechanism 5 is located in the accepting hole 22 of lock core 2, comprises cam 51, worm shaft 52, clutch block 53 and driving spring 54.Its cam 51 is set on the output shaft of motor 4.Worm shaft 52 passes from clutch block 53, and it extends, and an end is placed on the motor output shaft in the two ends of clutch block 53, can cooperate with cam 51, and the other end inserts on the inwall with lock core 2 in the set groove 26.Clutch block 53 can move in accepting hole 22, and its both sides convex with locating piece 55, and this locating piece 55 can insert in the lock body 1 catch 12 formed locating slots so that clutch block 53 and lock body 1 relative fixed.Driving spring 54 is placed on the worm shaft 52, is positioned at clutch block 53 inside, and the one end is by set protruding 56 spacing on the worm shaft 52, the inwall of other end butt clutch block 53.This driving spring 54 can be with the rotation axial compression or the stretching, extension of worm shaft 52.

Shift fork 6 is located at the other end of lock body 1 with respect to the key insertion end, is spirally connected with lock core 2, or otherwise fixedlys connected with lock core 1.

When key 7 did not insert this puzzle lock, the locating piece 55 of clutch block 53 both sides of its transmission mechanism 5 was arranged in the locating slot of lock body 1, makes whole lock core 2 to rotate relative to lock body 1, but with lock body 1 relative fixed, closed together.

When key 7 when lock core hole 21 inserts these puzzle locks, the hoodle 25 of suits in second spacing hole 24 of lock core 2 is headed in first spacing hole 14 of lock body 1, simultaneously, connect the control circuit on the circuit board 3, starter motor 4 runnings.The cam 51 that this motor 4 drives transmission mechanism 5 rotates together, the worm shaft of stirring after cam 51 starts on the output shaft that is placed in motor 4 52 rotates, the rotation of this worm shaft 52 makes driving spring 54 stretch by compression, thereby promoting clutch block 53 moves to shift fork 6 directions, make the locating piece 55 of clutch block 53 both sides in locating slot, skid off, clutch block 53 no longer is subjected to the restriction of locating slot, and can rotate in lock body 1 through hole 11, thus lock core 2 and lock body 1 folding.At this moment, instantaneous pin screw key 7 can rotational lock core 2, and drives the shift fork 6 that is fixedly mounted on lock core 2 other ends by lock core 2 and rotates the realization open function together.

Because of driving spring 54 is flexible reposition elements, when lock core 2 did not rotate to original position, clutch block 53 both sides locating pieces 55 can't enter in the locating slot 12 of lock body 1, and motor 4 time-delays are auto-reverse, along with the rotation driving spring 54 of worm shaft 52 is compressed, energy storage, make the motor 4 can be not stuck.When lock core 2 rotates to original position, clutch block 53 moves away from shift fork 6 directions from trend under the effect of the elastic-restoring force of driving spring 54, its both sides locating piece 55 slips in the locating slot of lock body 1, make lock core 2 not rotate relative to lock body 1 again, thus that lock core 2 and lock body 1 is closed together once more.So extract key 7, wait for next time and open.

Thus, the utility model numerical control tapered end can be realized with key (being generally electron key) as the control source, with motor as active force, with cam, worm shaft and driving spring as actuated element, by the cooperate machinery folding of realizing lock core and lock body of clutch block, treat to drive the open function that the lock core rotation realizes puzzle lock by key again after the folding with lock body.It is simple in structure, compact, transmission and safe in utilization, reliable, and good manufacturability is fit to produce in enormous quantities.

In addition, the utility model can be stirred set initialisation switch on the circuit board through the through hole of lock body in the fixing shift fork place of lock core one end, and many keys can be set, and also can cancel original key, change coding is mixed with different keys, simple to operate, good concealment, reliability height.

Claims

1, a kind of puzzle lock, comprise lock body, be located at lock core, the circuit board that is provided with control circuit, motor, transmission mechanism and shift fork in the lock body, it is characterized in that described motor and described transmission mechanism be located in the lock core, and the worm shaft of the output shaft of this motor and transmission mechanism is positioned on the same axis.

2, puzzle lock according to claim 1, it is characterized in that: described lock core is provided with the lock core hole of confession key insertion and the accepting hole that both sides penetrate the lock core wall, described motor is located on the described circuit board, this circuit board is located in the lock core hole of described lock core, and described transmission mechanism is located in the accepting hole of described lock core.

3, puzzle lock according to claim 1 and 2 is characterized in that, described transmission mechanism also comprises cam, clutch block and driving spring, and its cam is set on the output shaft of described motor; Worm shaft passes from clutch block, and it extends, and an end is placed on the output shaft of described motor in the two ends of clutch block, cooperates set groove fit on the inwall of the other end and described lock core with described cam; Driving spring is placed on the described worm shaft, is positioned at clutch block inside, and the one end is spacing by set projection on the worm shaft, but other end butt clutch block inwall.

4, puzzle lock according to claim 3, it is characterized in that, described lock body is provided with through hole, described lock core is positioned at this through hole, this lock body convexes with catch on its inwall, form a locating slot between per two catch, the clutch block outside of described lock core convexes with the locating piece that can cooperate with described locating slot.

5, puzzle lock according to claim 1 and 2, it is characterized in that, further comprise hoodle, one end of described lock body is provided with first spacing hole longitudinally, described lock core is provided with second spacing hole that is communicated with this first spacing hole, and this second spacing hole is communicated with the set lock core hole that inserts for key of lock core, and described hoodle places this first spacing hole and second spacing hole movably.

6, puzzle lock according to claim 1 and 2 is characterized in that described shift fork is located at the other end of described lock body with respect to the key insertion end, fixedlys connected with described lock core.

7, puzzle lock according to claim 1 and 2 is characterized in that described circuit board is provided with initialisation switch.