CN1877059A - Safety lock for doors of dwellings or the like - Google Patents

Abstract

A safety lock of the type with safety plates or gorges comprises means of arrest that withhold temporarily one or more gorges in a position moved away from their resting position, in such a way as to enable actuation of the lock with a first key, and means for deactivating said means of arrest in such a way as to enable actuation of the lock only with a second key different from the first key. Preferably, the adaptation of the lock to operate only with the second key is obtained simply as a result of using the second key in the lock.

Description

The dwelling house door, the safety lock of gate and similar component

Technical field

The present invention relates to a kind of dwelling house door that is used for, the safety lock of gate and similar component, it comprises framework, lock latch parts, it is installed in the framework movably; Can rotate between first and second positions by the key of lock and move, wherein said first and second positions correspond respectively to the open mode and the closed condition of lock; With a plurality of guard plates or barriers, it is arranged on described framework, by the key of rotation lock, overcomes the effect of spring mechanism or overcomes action of gravity, moves towards each position that lock latch parts is moved.

Background technology

In many cases, need use the key of control gate as the stranger's of related property personnel after, recover the safety that door lock provides.The situation of often running into is, construction site, and the lock on the building of building or repairing or the door in apartment is controlled by the key that offers the building site staff.In case construction work completion when the owner enters the house of finishing construction, must make the lock that is installed on the door can not be key operated by construction period used " scene ", has only " owner " key of property owner can open door.

The most frequently used solution for the problems referred to above is to change lock.Another way provides the lock with replaceable lock core, and making only needs to change lock core rather than whole lock, and lock just can adapt to new key.But also have a method to provide the lock of recompile, promptly lock can be suitable for different keys.But above-mentioned all methods are more complicated all, makes that the expense of time and extra cost is all very high.

Summary of the invention

The purpose of this invention is to provide a kind of safety lock, introduce as the beginning part of this explanation, available different key is operated by very simple mode, and safety lock easily and easy to use can not increase the expense of time and cost.

In order to realize described purpose, main body of the present invention is a kind of safety lock, it has described all features of the beginning part of the present invention, the feature that has in addition is, described lock comprises arrestment mechanism, can temporarily keep one or more guard plates to be positioned at the position of removing from resting position, make the available first key operated described lock; Lock also comprises the stop mechanism that described arrestment mechanism is failure to actuate, and makes to open lock with second key different with first key.

In a preferred embodiment, the shape of described stop mechanism is arranged to, and can actuate automatically by second key that uses described lock.In other words, initial available first key of this lock is operated, and therefore first key can be on-the-spot key, for the construction in the house that is subjected to locking protection or technician's use of maintenance works.Afterwards, when the house owner is given in the house man-hour, house-owner can insert lock with second key simply, and second key is owner's key, has only owner just to have, and at this moment lock only just can be operated by owner's key.

The present invention may also extend into lock available second key or the key operated situation of owner, but is not to realize automatically with the second key operated lock simply, but realizes for the stop mechanism that reaches described purpose and be provided with by intervention.

In lock according to the present invention, up to using owner's key, the active force that one or more guard plates or barriers overcome each back-moving spring remains on the position of removing from its resting position, so that stop and first key that can use lock.This set makes the key of winning, or on-the-spot key, can only operate by rotating fully, because the barriers akinesia, it temporarily remains on the aforesaid position of removing from its resting position.

In a preferred embodiment, when owner's key inserts in the lock, make after the release of described obstructions mechanism, just can not open lock with old on-the-spot key again.All guard plates or barriers are predisposed to and can be correctly actuated by owner's key, make lock latch parts move.

Aforesaid arrestment mechanism can keep one or more guard plates or barriers temporarily to be positioned at the position of removing from its resting position, arrestment mechanism preferably includes the brake component that has block piece, block piece combines with one or more guard plates, can keep it to be in described temporary position.Described brake component can move between moving position in the framework of lock and motionless position.Aforesaid stop mechanism preferably includes cam actuated mechanism, can actuate by second key of rotation lock.

Perhaps, the block piece of aforementioned brake component is subjected to destroying easily the supporting of parts, and when second key that uses described lock or owner's key moved described guard plate, parts destroyed.

At last, the present invention also can be applicable to this lock, and it comprises lock core detachable and that change, and in this case, described arrestment mechanism and described stop mechanism are connected to dismountable lock core.

Description of drawings

By the accompanying drawing and the following introduction of reading of reference lamina affixa, can know the understanding other features and advantages of the present invention, lamina affixa provides in the mode of non-limiting example, in the accompanying drawing:

Fig. 1 is the perspective schematic view of taking off cover plate according to first embodiment of lock of the present invention;

Fig. 2 is another phantom drawing of the lock of Fig. 1, and wherein Suo many parts take off, so that demonstrate some details of lock;

Fig. 3 is the amplification sectional view of the details of Fig. 2;

Fig. 4 is the view corresponding to Fig. 2, and it has shown that with on-the-spot key operated lock key revolves the residing state in back that turns around;

Fig. 5 is the front schematic view of the lock of Fig. 1, has shown that lock is in by the control of owner's key, the state of key rotation second circle;

Fig. 6 is the phantom drawing according to second embodiment of lock of the present invention;

Fig. 6 a, 6b are the enlarged drawings of the details that is in two different operating states of Fig. 6;

Fig. 7 is the phantom drawing of the third embodiment of the present invention, and it has used dismountable lock core;

Fig. 8 is the phantom drawing of lock core, has taken off some parts for showing better;

Fig. 9 is the front elevation drawing of Fig. 8 lock core, and lock is in the moment of using owner's key;

Figure 10 is the front elevation drawing of the detachable lock core locked of Fig. 7, is in the state of the key operated end of owner; With

Figure 11-the 16th is in the phantom drawing under the different operating state according to another embodiment of the present invention.

The specific embodiment

Among Fig. 1, mark 1 has been represented whole dibit pattern safety lock, and it comprises the housing 2 that metal sheet is made, and one side cover closure, cover plate show in the accompanying drawings, so that show the parts that lock is interior.The ordinary construction of dibit lock and operation are known, below just do not describe in detail.These structures and operation on the other hand, show in many patents that the inventor submits to and patent application.Simply, lock comprises lock latch parts 3, and it is made of metal sheet, is slidably mounted in the housing 2, has welded latch pin 4 on its side, slidably by the corresponding aperture on the sidewall of housing 2.Insert and rotate the key that allows use in the lock 1, but control lock door bolt part moves between the position that the position and the correspondence of correspondence lock open mode are locked closed condition, wherein be withdrawn into housing 2 in open mode latch pin 4, latch pin 4 is projected into housing 2 outsides in off position, and be contained in the respective seat of the framework that is fixed to doorframe, respective seat is near the door that lock 1 is installed.Lock 1 also can comprise, with complete traditional mode, spring catch or spring detent 5, be subjected to towards the resiliency urged of the position of withdrawing from housing 2, it is designed to when closing door and keep door to be in closed condition, but the seat of the fixed frame in the clamping doorframe, and promptly lock latch parts discharges.Lock traditional mode fully comprises a mechanism, when key turns when making latch pin 4 be withdrawn into housing 2, key itself can be carried out overtravel, control spring pin or spring detent 5 are return, door can be opened from the outside, under typical situation, outer side of door is not provided with the handle of control spring pin 5, and described handle operated by rotary motion is in the door inboard.

Also, be provided with one group of guard plate 6 or barriers in the housing 2, make, be slidably mounted in the housing, be parallel to its plane and the moving direction that is orthogonal to lock latch parts 3 by metal sheet by traditional mode.As shown in the figure, relate to the introduction in the text of CONSTRUCTED SPECIFICATION that lock latch parts 3 and guard plate 6 are slidably mounted in the mode in the housing 2, described details can be understood by any known way.Still by traditional mode fully, guard plate 6 is provided with window 6a, works in coordination basically and has toothed edge.At last, guard plate 6 is provided with corresponding opening 6b, is used to engage key, and has top margin 6c, can engage with the toothed edge of the dibit appendage of key (example of this key can referring to Fig. 8).During when key insertion lock and around its rotational, the limit 6c of the toothed edge Continuous Contact barriers 6 of dibit appendage makes its active force that overcomes elastic mechanism (showing at Fig. 1) or only overcomes action of gravity, moves (vertically upward, as shown in Figure 1).The shape of the toothed edge of the dibit appendage of the key that the toothed edge of the window 6a of guard plate 6 and permission are used is arranged to, and the removable guard plate 6 of key enters the position that lock latch parts 3 is moved.The plate that constitutes lock latch parts is provided with safety pin 7 (or mantonnet), and its window 6a by guard plate 6 is outstanding, when moving to by the key guard plate when making the position that lock latch parts moves, can find clear passage between the crown of window 6a.

Structure of being introduced and operation are the traditional approach of dibit pattern safety lock.Should be pointed out that the present invention can be applicable to any this class lock, it can have a plurality of such guard plates or barriers.Particularly, the present invention may also extend into such lock, and it replaces using the dibit key, with moving of column-shape locking mechanism control guard plate.Perhaps the present invention is applied to so-called pump type lock, and wherein, guard plate is mounted to can be moving around the common shaft string pendulum of bindiny mechanism, and key has preceding toothed edge, must axially be pushed in the lock before rotation.

Idea of the present invention comprises such fact, is locked in to have one or more guard plates 6 when beginning to install, and it temporarily is positioned at the position of removing from resting position, draws towards resting position by each back-moving spring.Under illustrated particular case, have only first guard plate 6 to be provided with tooth 8, it engages with the block piece 9 that constitutes brake component 10 (seeing Fig. 2, a 3) part, make described guard plate 6 be positioned at the position of moving outside its resting position, each back-moving spring (not shown in the diagram) draws guard plate towards resting position.

Shown in Fig. 2 and 3, brake component 10 constitutes by prismatic that is slidably mounted in the housing 2, bearing of trend is identical with the moving direction of lock latch parts 3, is being joined to by Elastic Teeth 10a between two grooves 11 or 12 formed two extreme positions, and wherein groove forms in the base end wall of housing 2.

As showing, lock is in the state of Fig. 1 when leaving factory, remain in temporary position so it is mounted to first guard plate 6, as shown in Figure 1, at this moment is motionless.Under described state, lock can be controlled by first kind key, and it generally is on-the-spot key, can offer the technician relevant with construction work.

Fig. 4 has shown the lock that is in the on-the-spot key state of use.Because first guard plate 6 is in temporary transient inactive position, by the key turns first lap, safety pin 7 is between the tooth of the window of guard plate.When described first lap finished, safety pin 7 was run into tooth 13, prevents being moved further of lock latch parts.But under described state, latch pin 4 withdrawals make lock to actuate by on-the-spot key, open and close the door that lock has been installed.

In case construction work is finished, when jural owner was given in the house, owner can use its owner's key, inserted in the lock and rotation.Owner's key can rotate by two circles and actuate lock latch parts, enters the position that lock latch parts is moved because of the shape that is provided with on it is fit to mobile security plate 6.Particularly, when owner's key arrives its first lap end, safety pin 7 is not braked by tooth 13, because of key is controlled the rising (as shown in the figure) of first guard plate 6, interferes with tooth 13 preventing.Simultaneously, in case arrive the end of rotating two circles, owner's key will make lock latch parts mobile fully, plate 14 moves simultaneously, the vertical sliding bar in control top moves sufficient amount, make inclined plane 16 (see figure 2)s of cam 16a contact brake component 10, (as shown in Figure 2) mobile brake component 10 enters position shown in Figure 3 towards the left side.In this way, make guard plate 6 can not be limited to original temporary position, by first key, or the unlatching of locking of on-the-spot key become impossible.

As shown in the figure, for lock according to the present invention, lock can be opened by on-the-spot key at first, and after lock being carried out the unlatching first time with owner's key, lock just can only be opened by owner's key.In a preferred embodiment, described result's realization is to unblank with owner's key simply.But do not get rid of, discharging the guard plate that is limited to temporary position can realize that by any other mechanism mechanism can manually and wittingly be actuated by the user.

Aforementioned result can realize in aforementioned temporary position by keeping a guard plate 6.But if wish the difference lock in same set of house, wherein lock is opened with different owner's keys, can open on-the-spot key with one at first, must keep a plurality of guard plates 6 in motionless position.

Fig. 6, the embodiment of 6a and 6b is that with the different places of introducing above first guard plate 6 is limited to the mode of temporary position.In this case, the realization of described restriction can be by engaging with the groove 20 of the side formation of safety member 6 from the outstanding tooth 21 of fixing part 22 (object of making as the plastic material of the back-moving spring shell of guard plate under specific circumstances).Shown in Fig. 6 B, the material of these parts is selected and is arranged so that, when owner's key inserts and use, causes guard plate vertically to move (as shown in the figure) and temporarily is subjected to the restriction of tooth 21, and this makes and described tooth fracture makes that on-the-spot afterwards key can not use.

At last, the embodiment of Fig. 7 to 10 relates to the situation that lock 1 is equipped with lock core 30, lock core 30 detachable and replacings.In this case, be lock core in conjunction with a plurality of guard plates 6, its slidably relatively the framework 31 of lock core 30 be provided with.Lock core also comprises the plate that constitutes lock latch parts 3, under the situation in lock core is fixed on the lock housing body, by known methods, is connected to the plate that is connected with latch pin 4.In shown embodiment, first guard plate 6 is limited to temporary position, the part 34 of tooth 33 engage brake parts 10.Brake component has part 35, have selectively with two grooves in one (can only see one among Figure 10, it is along part 35) block piece of engaging, groove forms on the plate of a framework part that forms lock core.Insert owner's key and make brake component 10 be failure to actuate, contact with the wall 37 of brake component 10 because lock latch parts 3 is provided with pin 36.In addition, structure and operation are similar to the structure of introducing above very much.

Place of matchmakers clearly demonstrates as the front, can realize the purpose determined according to lock of the present invention, can actuate with on-the-spot key in the starting stage, described on-the-spot key can not be worked, very shirtsleeve operation by owner's key realizes that cost and any extra cost do not take time in the process of making lock.In a preferred embodiment, the user just can realize by mode very simple and commonly used, in case use owner's key, can accurately make on-the-spot key not work.

With reference to fig. 11 to 16, shown additional embodiments according to lock of the present invention, it makes the quantity of lock have greatly increased, the available same on-the-spot key of these lock beginnings is controlled, available then different owner's key is operated, can be fully independent mutually (can realize among this first embodiment that introduces in the above, but the restriction that is subjected to locking negligible amounts).

Figure 11 has shown that lock is in the state of initial on-the-spot version.In this state, be subjected to the lock that special on-the-spot key is actuated, wherein key all is identical for all locks, has the possibility of only rotating 2 circles in 4 circles, introduces as top.

In this embodiment, can see that lock also is provided with bar 101, can be by the swing of the pin 101a on the plate 3 of lock latch parts; And be provided with tooth 102, under the effect of spring 103, keep contacting (showing that in order to simplify and to be convenient to other guard plate does not show) with the guard plate 6 of code.

When on-the-spot key inserts, as by the agency of, can only carry out first two circle, as introducing with reference to first embodiment, key can not discharge the guard plate of support teeth 13.Under this opposite extreme situations, as shown in figure 12, the tooth 102 of bar 101 still keeps in touch guard plate 6, and lock latch parts 3 can not be further rotated, because safety pin 7 is subjected to the restriction of the tooth 13 of guard plate 6.

By inserting last owner's key, as the introduction of being undertaken by first embodiment, discharged guard plate 6, make safety pin 7 can pass the window of guard plate 6, promote lock latch parts 3 and (see Figure 13) forward.

At this moment, be advanced further (the seeing Figure 14) of lock latch parts 3 makes the bar 101 that supports freely rotate along clockwise direction (as shown in the figure) under the effect of spring 103.

When the 4th changeed end, promptly behind key turns two whole circles (lock cuts out fully), bar 101 was positioned at last position (seeing Figure 15) definite and that can not return, and it is limited to the back crimp of the plate 3 of lock latch parts by spring 103.

In this case, when lock cut out, when arriving last the rotation, tooth 102 was positioned at the position corresponding to the groove 108 of guard plate 6, is in suitable height, makes it can enter window 109, is positioned at last open position (seeing Figure 16).

Insert in the lock if old on-the-spot key is accidental, different with first embodiment that introduces above, lock latch parts 3 can not move, because of will stoping it, tooth 102 advances, different coding for guard plate 6, groove 108 can not be found, guard plate can be discharged by inserting owner's key (level according to control can be provided with up to 6 guard plates).

Very natural, correctly be familiar with principle of the present invention, that can introduce by by way of example relatively extensively changes with structure that shows and the details of embodiment, and this does not depart from the scope of the present invention.

Claims (13)

1. safety lock comprises:

Framework (2,31);

Lock latch parts (3) is installed in the described framework movably, can rotate between the primary importance of locking and the second place by key and move, and first and second positions correspond respectively to the open mode and the closed condition of lock;

A plurality of guard plates or barriers (6) are arranged on described framework (2,31), by the key of rotation lock, overcome the effect of spring mechanism or overcome action of gravity, move towards each position that described lock latch parts (3) is moved;

Described safety lock is characterised in that described lock also comprises:

Arrestment mechanism (10,22) can temporarily keep one or more guard plates (6) to be positioned at the position of removing from resting position, makes the available first key operated described lock; With

The stop mechanism that described arrestment mechanism (10,22) is failure to actuate makes and can only open described lock with second key different with first key.

2. safety lock according to claim 1 is characterized in that the shape of described stop mechanism is arranged to, and can actuate automatically by second key that uses described lock.

3. safety lock according to claim 1 is characterized in that, described arrestment mechanism comprises the brake component (10) that has block piece (9), and described block piece (9) can combine with one or more guard plates (6), remains in described temporary position.

4. safety lock according to claim 3 is characterized in that, described block piece (9) is subjected to described brake component (10) supporting, can move between moving position in the framework (2) and motionless position.

5. safety lock according to claim 4 is characterized in that, described brake component (10) and described framework (2) have the surface (10a, 11,12) of mutual clamping, and the moving position of described brake component (10) and the benchmark of motionless position are provided.

6. safety lock according to claim 4 is characterized in that, described stop mechanism comprises cam actuated mechanism (16a, 16), is actuated when second key turns of described lock.

7. safety lock according to claim 3 is characterized in that, described block piece (21) is subjected to destroying easily the supporting of parts, and when second key that uses described lock moved described guard plate, described parts destroyed.

8. according to each described safety lock in the claim of front, it is characterized in that described lock comprises lock core detachable and that change, described lock latch parts (3), described guard plate (6), described brake component (10) and described stop mechanism are supported on described dismountable lock core.

9. safety lock according to claim 1 is characterized in that, described lock comprises the auxiliary body that blocks first key, in case use second key, the lock latch parts (3) that can control described lock is with described first key moving from the fully open position of lock.

10. safety lock according to claim 9, it is characterized in that, described one or more guard plate (6) has assist openings (108,109), be used for the safe block piece (102) of plate (3) supporting of described lock latch parts, described opening (108,109) is located and is arranged to, under situation, can prevent moving of safe block piece (102) and lock latch parts with the first key operated described lock; Inactive described auxiliary body is designed to, and when at first using second key, can make described safety screen (102) be engaged in described opening (108,109).

11. safety lock according to claim 10 is characterized in that, described safe block piece (102) is subjected to the supporting of moving member (101), and moving member is fixed to the plate of lock latch parts, is subjected to the promotion towards the end shift position of elastic mechanism (103).

12. safety lock according to claim 11 is characterized in that, described moving member (101) is a bar, is fixed to the plate (3) of described lock latch parts swingably.

13. safety lock according to claim 11 is characterized in that, described moving member (101) is installed in the plate (3) of described lock latch parts, it is arranged to, when at first using second key, can interfere described guard plate (6), arrive complete fastening position up to described lock latch parts; Under the lock closing state, moving member (101) can freely arrive the end shift position and keep to the final, and safe block piece (102) is predisposed to the assist openings (108,109) that can engage guard plate.

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