CN107489305B - Coded lock - Google Patents

Abstract

The present invention provides a kind of coded lock.The coded lock includes lock body, latch hook, type drum, escape wheel character code wheel shaft and password searching device.Latch hook is installed on lock.Type drum is sleeved on escape wheel.Escape wheel is set on type drum axis and is equipped with escape retaining structure.Password searching device includes lock gall and key, and wherein lock gall is associated with character code wheel shaft and is configured to when rotating predetermined angular with key actuated lock gall, and character code wheel shaft is displaced to a position, and in the position, type drum can turn to and by backstop in predetermined position.In the pre-position, character code shown in type drum constitutes current password.For coded lock of the invention after forgetting Password, password can also be regained by being not required to destruction coded lock.

Description

Coded lock

Technical field

The present invention relates to locksets, and in particular to mechanical code lock.

Background technique

Various types of pad lock structures have now been developed, are widely used to prevent to obtain locked object part without permission. Some locks are designed as opening by key.Other locks are equipped with password combination, are opened by stirring specific password combination It opens.This coded lock eliminates Physical key, to not have to worry key loss.

A kind of coded lock uses multiple independent type drums with number, since it is easily used, institute To be popular.In general, these coded locks allow user to set required password.Moreover, in the case where locking opening state, user can be with Change password.However, this kind of coded lock when user forgets Password, cannot be opened and can only be destroyed.

Occurs a kind of bimodulus lock at present, it can operate by key or password.User can pass through additional master Key is locked to open.The main function of the key is under coded lock normal lock state, and triggering latch hook is opened and ignores password. However, user cannot regain password for this lock.

Summary of the invention

The purpose of the present invention is one kind in the case where forgetting Password, and not needing to destroy can also unlock and reacquire close The coded lock of code.

To achieve the above object, according to an aspect of the present invention, a kind of coded lock is provided, the coded lock includes lock Body, latch hook, type drum, escape wheel and character code wheel shaft, wherein the latch hook is installed on the lock.The type drum suit On the escape wheel.The escape wheel is set on the character code wheel shaft and is equipped with escape retaining structure.The character code wheel shaft It is installed in the lock body and is at the first type drum shaft position or be in the second type drum shaft position, in first word At code wheel shaft position, the character code wheel shaft is limited the latch hook to lock the latch hook, and in second type drum At shaft position, the character code wheel shaft releases the limit to the latch hook to discharge the latch hook.The coded lock further comprises Password searching device.The password searching device includes: to look for a yard part, described that yard part is looked for be associated with and be arranged to the character code wheel shaft It is at first to look for yard part position or look for a yard part position in second, wherein looking for yard part to look for a yard part in described first when described When position, the character code wheel shaft is at the first type drum shaft position or at the second type drum shaft position； Driving mechanism, the driving mechanism with it is described look for a yard part to be associated with and be arranged to driving described in look for a yard part so that described look for code Part looks for a yard part position to be moved to described second and looks for a yard part position from described first, wherein looking for yard part to look in described second when described When code part position, the character code wheel shaft can be moved to third type drum shaft position from the first type drum shaft position；And Positioning mechanism, the positioning mechanism are set in the lock body and are arranged so as to work as the character code wheel shaft from first character code After wheel shaft position is moved to the third type drum shaft position, when the type drum rotates predetermined angular, the escape detent Structure can contact the positioning mechanism, and when the escape retaining structure contacts the positioning mechanism, the type drum Character code shown in present position constitutes current password.

In one embodiment, the character code wheel shaft is at the 4th type drum shaft position, wherein the character code wheel shaft is in When the 4th type drum shaft position, escape wheel is free to rotate relative to type drum.

In one embodiment, the driving mechanism includes lock gall and key, and the lock gall is configured to by the key actuated simultaneously Equipped with driving structure, wherein the driving structure is arranged to when the lock gall described in key actuated, the driving structure drives institute It states and looks for a yard part, so that described look for a yard part displacement, so that the character code wheel shaft can be moved to the third type drum shaft position.

In one embodiment, the outer peripheral surface of one end of the character code wheel shaft is equipped with radial protrusion；And described look on yard part sets There are profiled holes, the profiled holes include interconnected first part and second part, and the first part is sized to It passes through for the radial protrusion so that the character code wheel shaft can be moved to the third type drum shaft position, and described second It is partial to be sized to that the radial protrusion is stopped to pass through.

In one embodiment, the driving structure be set to it is convex from the outwardly projecting lock gall of outer periphery of the lock gall It rises, the lock gall protrusion and the outer peripheral surface for looking for yard part cooperate to drive and described yard part be looked for move.

In one embodiment, the outer peripheral surface rounded corner of the lock gall protrusion；And/or the outer peripheral surface for looking for yard part is equipped with guiding Inclined-plane.

In one embodiment, the latch hook includes installation end and keyed end, and the installation end is connected with spring and and spring one It rises in the insertion lock body.

In one embodiment, the coded lock is additionally provided with actuating button, and described actuating button one end is connected to the type drum Axis, the other end expose to the lock body.

In one embodiment, the type drum is ring bodies, and the periphery wall of the type drum is equipped with character code, and the character code The internal perisporium of wheel is equipped with type drum card slot corresponding with the character code.The escape retaining structure is from the periphery of the escape wheel The tendon shape protrusion with predetermined axial length that surface projects radially outwardly.Spaced multiple muscle are equipped with the lock Plate wherein accommodates a type drum between every two gusset, and the top of the gusset is equipped with lock body groove, and the lock body is recessed The bottom of slot is equipped with boss and crosses slot, and the escape wheel is held on above the lock body groove.The location structure includes that setting exists The side of the gusset crosses the boss block of slot close to the boss, wherein the boss block is configured so that when the character code When wheel shaft is in the third type drum shaft position, the type drum is rotated, the boss block described in the tendon shape projection contacts When, the tendon shape protrusion is crossed slot with the boss and is aligned.

In one embodiment, the quantity of the type drum is identical as the quantity of the escape wheel, each type drum suit On an escape wheel and the length of the escape wheel is longer than the length of the type drum.

In one embodiment, the password searching device further includes the resetting-mechanism being contained in the lock body, described Resetting-mechanism is used for after the character code wheel shaft is moved to the first type drum shaft position from the third type drum shaft position, It looks for a yard part to be moved to described first described in driving and looks for a yard part position.

In one embodiment, the resetting-mechanism is first back-moving spring, and one end of the first back-moving spring is against described Look for yard part and the other end of the first back-moving spring against the lock body.

In one embodiment, the coded lock further includes second back-moving spring, one end of the second back-moving spring against Body is locked, the other end of the second back-moving spring makes the type drum axially lower effect against the character code wheel shaft.

In one embodiment, the coded lock further includes third reset spring, one end of the third reset spring against Body is locked, the other end of the third reset spring unclamps latch hook automatically when opening against the longer end of the latch hook.

According to another aspect of the present invention, a kind of coded lock is additionally provided, the coded lock includes lock body, latch hook, character code Wheel, escape wheel and character code wheel shaft, wherein the latch hook is installed on the lock.The type drum is sleeved on the escape wheel On, the escape wheel is set on the character code wheel shaft and is equipped with escape retaining structure.The character code wheel shaft is installed on the lock In body and it is at the first type drum shaft position or is in the second type drum shaft position, at the first type drum shaft position, institute Character code wheel shaft is stated to limit the latch hook to lock the latch hook, and at the second type drum shaft position, the word Code wheel axis releases the limit to the latch hook to discharge the latch hook.The coded lock further comprises password searching device, institute Stating password searching device includes lock gall and key, wherein the lock gall is associated with the character code wheel shaft and is configured to the key When spoon drives the lock gall rotation predetermined angular, the character code wheel shaft is displaced to third type drum shaft position, and works as the word When code wheel axis is in the third type drum shaft position, the type drum can be turned to and by backstop in predetermined position, at this Pre-position, character code shown in the type drum constitute current password.

In one embodiment, the password searching device further comprises looking for a yard part, wherein described look for yard part and the lock gall Be associated with the character code wheel shaft and be arranged so that the lock gall can drive it is described look for a yard part so that described look for yard part from described First, which looks for a yard part position to be moved to described second, looks for a yard part position, and looks for yard part to look for a yard part position in described first when described When, the character code wheel shaft is in the first type drum shaft position or in the second type drum shaft position, and when described When looking for yard part to be in described second looking for yard part position, the character code wheel shaft can be moved to the from the first type drum shaft position Three type drum shaft positions.

In one embodiment, the password searching device further comprises positioning mechanism, and the positioning mechanism is set to described In lock body and it is arranged so as to be moved to the third character code wheel shaft from the first type drum shaft position when the character code wheel shaft Behind position, when the type drum rotates predetermined angular, the escape retaining structure can contact the positioning mechanism, and work as When the escape retaining structure contacts the positioning mechanism, character code shown in the type drum present position constitutes current close Code.

In one embodiment, the outer peripheral surface of one end of the character code wheel shaft is equipped with radial protrusion；And described look on yard part sets There are profiled holes, the profiled holes include interconnected first part and second part, and the first part is sized to It passes through for the radial protrusion so that the character code wheel shaft can be moved to the third type drum shaft position, and described second It is partial to be sized to that the radial protrusion is stopped to pass through.

In one embodiment, the periphery of the lock gall is equipped with the lock gall protrusion projected radially outwardly, the lock gall protrusion and institute It states and looks for the outer peripheral surface of yard part to cooperate to drive and described look for a yard part movement.

In one embodiment, the outer peripheral surface rounded corner of the lock gall protrusion；And/or the outer peripheral surface for looking for yard part is equipped with guiding Inclined-plane.

In one embodiment, the latch hook includes installation end and keyed end, and the installation end is connected with spring and and spring one It rises in the insertion lock body.

In one embodiment, the coded lock is additionally provided with actuating button, and described actuating button one end is connected to the type drum Axis, the other end expose to the lock body.

In one embodiment, the type drum is ring bodies, and the periphery wall of the type drum is equipped with character code, and the character code The internal perisporium of wheel is equipped with type drum card slot corresponding with the character code；The escape retaining structure is from the periphery of the escape wheel The tendon shape protrusion with predetermined axial length that surface projects radially outwardly；Spaced multiple muscle are equipped with the lock Plate wherein accommodates a type drum between every two gusset, and the top of the gusset is equipped with lock body groove, and the lock body is recessed The bottom of slot is equipped with boss and crosses slot, and the escape wheel is held on above the lock body groove；And the location structure includes setting The boss block for crossing slot close to the boss in the side of the gusset is set, wherein the boss block is configured so that when described When character code wheel shaft is in the third type drum shaft position, the type drum is rotated, the boss described in the tendon shape projection contacts When block, the tendon shape protrusion is crossed slot with the boss and is aligned.

In one embodiment, the quantity of the type drum is identical as the quantity of the escape wheel, each type drum suit On an escape wheel and the length of the escape wheel is longer than the length of the type drum.

In one embodiment, the password searching device further includes the resetting-mechanism being contained in the lock body, described Resetting-mechanism is used for after the character code wheel shaft is moved to the first type drum shaft position from the third type drum shaft position, It looks for a yard part to be moved to described first described in driving and looks for a yard part position.

In one embodiment, the resetting-mechanism is first back-moving spring, and one end of the first back-moving spring is against described Look for yard part and the other end of the first back-moving spring against the lock body.

It is according to the present invention also on the one hand to provide a kind of coded lock, the coded lock include lock body, latch hook, type drum, Escape wheel and character code wheel shaft, wherein the latch hook is installed on the lock, the type drum is sleeved on the escape wheel, The escape wheel is set on the character code wheel shaft and is equipped with escape retaining structure.The coded lock further comprises that password is recovered Device, the password searching device includes lock gall and key, wherein the lock gall is associated with and is configured to the character code wheel shaft When the lock gall described in the key actuated rotates predetermined angular, the character code wheel shaft is displaced to a position, in the position, the word Code wheel can turn to and by backstop in predetermined position, and in the pre-position, character code shown in the type drum constitutes current Password.

Coded lock of the invention is equipped with password searching device, and in the case where forgetting Password, not needing to destroy can also lead to Cross the coded lock that the password searching device reacquires password.

Detailed description of the invention

Fig. 1 is the perspective view of the coded lock of an embodiment according to the present invention, and wherein the coded lock is in the lock state, and For clarity, it removes and is covered with lock；

Fig. 2 is the schematic perspective view of the lock body of the coded lock of Fig. 1；

Fig. 2A is the schematic perspective view covered with the lock of the coded lock of Fig. 1；

Fig. 3 is the schematic perspective view of the latch hook of the coded lock of Fig. 1；

Fig. 4 is the schematic perspective view of the type drum of the coded lock of Fig. 1；

Fig. 5 is the schematic perspective view of the escape wheel of the coded lock of Fig. 1；

Fig. 6 is the top view of the escape wheel of Fig. 5；

Fig. 7 is the cross-sectional view of the escape wheel of the line A-A section view along Fig. 6；

Fig. 8 is the schematic perspective view for looking for yard part of the coded lock of Fig. 1；

Fig. 9 is the top view for looking for yard part of Fig. 8；

Figure 10 is the schematic perspective view of the character code wheel shaft of the coded lock of Fig. 1；

Figure 11 is the top view of the character code wheel shaft of Figure 10；

Figure 12 is the left side view of the character code wheel shaft of Figure 10；

Figure 13 is the front view of the character code wheel shaft of Figure 10；

Figure 14 is the schematic perspective view of the lock gall of the password searching device of the coded lock of Fig. 1；

Figure 15 is the top view of the lock gall of Figure 14；

Figure 16 is the bottom view of the lock gall of Figure 14；

Figure 17 is the front view of the coded lock of Fig. 1；

Figure 18 A is the cross-sectional view of the line B1-B1 section view along Figure 17；

Figure 18 B is the cross-sectional view of the line B2-B2 section view along Figure 17；

Figure 19 is the perspective view of the coded lock of Fig. 1, and wherein the coded lock is in unlocking condition, and for clarity, is removed It is covered with lock；

Figure 20 is the front view of the coded lock of Figure 19；

Figure 21 is the cross-sectional view of the line C-C cutting along Figure 20；

Figure 22 is that the coded lock of Fig. 1 is in perspective view when changing cryptographic state, for clarity, removes and covers with lock；

Figure 23 is the front view of the coded lock of Figure 22；

Figure 24 is the cross-sectional view of the line D-D cutting along Figure 23；

Figure 25 is that the perspective view that the coded lock of Fig. 1 is in when password recovers state removes with lock for clarity Lid；

Figure 26 is the front view of the coded lock of Figure 25；

Figure 27 is the cross-sectional view of the line E-E cutting along Figure 26；

Figure 28 is structural schematic diagram when coded lock during password is recovered is in first state, and wherein password is recovered Device action, type drum axis move downward, and for clarity, further remove latch hook and type drum etc.；

Figure 29 is structural schematic diagram when coded lock during password is recovered is in the second state, and wherein character code rotates Proper password position is moved, for clarity, further removes latch hook and type drum etc.；

Figure 30 is structural schematic diagram when coded lock during password is recovered is in the third state, wherein looking for yard part multiple Position, the coded lock are restored to normal operating condition, for clarity, further remove latch hook and type drum etc.；

Figure 31 A is that the password of Fig. 1 locks in the front view for the state of shutting；

Figure 31 B is the cross-sectional view of the line F-F along Figure 31 A；

Figure 32 A is that the password of Fig. 1 locks in the front view of unlocking condition；

Figure 32 B is the cross-sectional view of the line G-G along Figure 31 A；

Figure 33 A is that the password of Fig. 1 locks in the front view for changing cryptographic state；

Figure 33 B is the cross-sectional view of the line H-H along Figure 31 A；

Figure 34 A is that the password of Fig. 1 locks in the front view of getting back cipher code state；And

Figure 34 B is the cross-sectional view of the line I-I along Figure 31 A.

Specific embodiment

Presently preferred embodiments of the present invention is described in detail below with reference to attached drawing, it is of the invention to be clearer to understand Objects, features and advantages.It should be understood that embodiment shown in the drawings does not limit the scope of the present invention, and only it is Illustrate the connotation of technical solution of the present invention.

Fig. 1 shows the perspective view of the coded lock 100 of an embodiment according to the present invention, and wherein the coded lock is in locking shape State, and for clarity, it removes and is covered with lock.As shown in Figure 1, coded lock 100 includes lock body, latch hook 2, type drum 3, character code Wheel shaft 4 and escape wheel 5 (referring to Figure 18 B), wherein lock body includes lid 16 with the lock body lower cover 1 fitted together and lock.Lock Hook 2 is installed on lock and can be relative to lock body movement, so that coded lock is in the lock state or opening state.Type drum 3 are sleeved on escape wheel 5 and can move relative to escape wheel 5.Escape wheel 5 is set in character code wheel shaft 4.Character code wheel shaft 4 is installed It can move in Yu Suoshen and between the first type drum shaft position and the second type drum shaft position, in the first type drum shaft position Place, as shown in Figure 1, character code wheel shaft 4 limits latch hook 2 to lock latch hook 4.At the second type drum shaft position, such as Figure 19 Shown, character code wheel shaft 4 releases the limit to latch hook 2 to discharge latch hook 4.

Specifically, as shown in figure 3, latch hook 2 is that substantially U-shaped, one side of U-shaped is longer.201 (the i.e. U of one end of latch hook 2 The end of the short side of word) limit pits 202 are equipped with, limit pits 202 are used in locking, dial pearl 10 with being contained in lock body Cooperation, so that latch hook 2 is maintained at latched position, referring to Fig. 1.Further, in the locked state, character code wheel shaft 4 is to group pearl 10 are limited, so that dialling limitation pit 202 of the pearl 10 on the end of latch hook 2 201 and remaining locked to end 201 Lock body.The other end 203 (i.e. the end of the long side of U-shaped) of latch hook 2 is equipped with another limit pits 204.The work of limit pits 204 It is essentially identical with the effect with limit pits 202, and be contained in lock body in dial pearl 10 cooperate, and in turn with character code wheel shaft 4 collective effects and make end 203 remain locked to lock body.

Spring detent slot 205 is additionally provided on the end of latch hook 2 203.One end of latch hook reset spring 9 is fixedly connected on bullet On spring detent slot 205, the other end is against lock body, to drive lock in character code wheel shaft 4 and after dialling the releasing of pearl 10 to the restriction of latch hook Hook 2 moves, and realizes unlock.

As shown in figure 4, type drum 3 is substantially a ring-shaped body.Character code 301 is equidistantly distributed on the periphery wall of type drum 3, schemes Shown in character code be 0-9 number.It should be understood that character code can also be made of alphabetical A-Z, or by number and monogram It constitutes, or is made of any suitable character.Type drum 3 is provided with central through hole 302, limits the inner circumferential of central through hole 302 Wall is equipped with type drum card slot 303.Escape wheel 5 passes through central through hole 302, so that type drum 3 is sleeved on escape wheel 5.

As shown in figure 5, escape wheel 5 has cylindrical body 501.The peripheral surface of cylindrical body 501 is equipped with escape detent Structure.In the present embodiment, escape retaining structure is projected radially outwardly and is axially extended from the peripheral surface of cylindrical body Tendon shape protrusion 502.Tendon shape protrusion 502 has predetermined axial length.The axial length is arranged under normal unlocking condition, respectively changes The boss that tendon shape protrusion 502 on code wheel is stuck in lock body lower cover crosses slot 1021b, 1022b, 1023b and 1024b (referring to figure 2) and in type drum card slot 303 (type drum can not rotate under unlocking condition at this time), and in the case where password recovers state, escape wheel 5 can turn to so that tendon shape protrusion 502 with lock with boss block 104 (referring to fig. 2) contact, and in normal lock state Under, tendon shape protrusion 502 does not interact with boss block, is as described further below.Tendon shape protrusion 502 rounded corners in order to Boss with type drum card slot 303 or lock crosses slot 1021b, 1022b, 1023b and 1024b cooperation, is discussed further below.Muscle The longitudinal end of shape protrusion 502 towards escape wheel 5 positions.It should be understood that escape retaining structure can also be replaced by other structures Generation, as long as it can be realized and the raised 502 identical functions of tendon shape.Further, the quantity of escape wheel 5 and type drum 3 Quantity it is identical, 3 sets of each type drum on an escape wheel 5.The length of escape wheel 5 is longer than the length of type drum 3.

As shown in figures 10-13, character code wheel shaft 4 is for rod-like element and including head 401, middle part 402 and lower part 403.Head 401 It is equipped with limiting section 4013, limiting section 4013 is equipped with spring receiving hole 4012.Spring receiving hole 4012 is axially prolonged along limiting section It stretches, for accommodating Lock spring 11.In the locked state, Lock spring 11 is to 4 applied force of character code wheel shaft, so that limiting section 4013 It is held against and dials pearl 10, so that dialling limitation pit 202 of the pearl 10 on the end of latch hook 2 201, realize locking.It is limiting It is set below position portion 4013 there are two groove 4011, groove 4011 is set on the outer peripheral surface on head and diametrically.In unlock, It dials pearl 10 and enters groove 4011, to release the locking to latch hook, be as described further below.

The middle part 402 of character code wheel shaft 4 is cylindrical body, for installing escape wheel 5.The lower part 403 of character code wheel shaft is equipped with radial Protrusion 4031.Button installing hole 4032 is equipped with below radial protrusion 4031 in the lower part of character code wheel shaft, for installing button 6.

As shown in Fig. 2, the right side of lock body lower cover 1 is equipped with the first latch hook accommodating chamber 101 for installing 2 long side of latch hook.Lock The left upper portion of body lower cover 1 is equipped with the second latch hook accommodating chamber 1010 for receiving 2 short side of latch hook.In the locked state, latch hook 2 Short side be locked in the second latch hook accommodating chamber 1010.Under unlocking condition, latch hook 2 is detached from the second latch hook accommodating chamber 1010. It is equipped with lock gall accommodating chamber 106 in the left lower of lock body lower cover 1, for accommodating lock gall 7 (as shown in figure 14).Lock gall accommodating chamber 106 bottom is equipped with opening 106a, passes through in order to the lower part of lock gall 7 or protrudes into for key to drive lock gall.

It is equipped with character code wheel shaft accommodating chamber 109 in the middle upper portion of lock body lower cover 1, the upper end of character code wheel shaft 4 can be along character code Wheel shaft accommodating chamber 109 moves up and down.It is equipped in the two sides of character code wheel shaft accommodating chamber 109 and dials pearl accommodating chamber 1011, dialled for accommodating Pearl 10.It locks and is formed with 5 of mutual equal spacings in the lower section of character code wheel shaft 109 on the central part of body lower cover 1 Gusset, i.e. gusset 1021,1022,1023,1024 and 1025.A type drum 3 is accommodated between every two adjacent webs.Ying Li Solution, the quantity of gusset is arranged according to the quantity of type drum 3, i.e., the quantity of gusset than type drum 3 quantity more than 1, from And a type drum 3 is accommodated between two neighboring gusset.For example, if the quantity of type drum 3 is 3, then 4 gussets are equipped with. If the quantity of type drum is 5,6 gussets are equipped with, and so on.

The structure of gusset 1021,1022,1023 and 1024 is essentially identical.The top of gusset 1021,1022,1023 and 1024 It is respectively equipped with lock body groove 1021a, 1022a, 1023a and 1024a.Lock the bottom of body groove 1021a, 1022a, 1023a and 1024a Portion is respectively equipped with boss and crosses slot 1021b, 1022b, 1023b and 1024b.Each escape wheel 5 is held on corresponding lock body groove respectively Lower section.The structure of gusset 1021,1025 can be essentially identical with gusset 1022-1024, can also be different, but needs above escape wheel There are lock body groove and boss to cross slot, lower section needs boss block, similar boss block can be not provided on gusset 1021, Similar lock body groove and boss can be not provided on gusset 1025 to cross slot (when looking for password, escape wheel protrusion can be in type drum card In slot and body boss stop location is locked, looking for when password must have a lock body boss block to block escape wheel protrusion, after finding password, When unlatching, top, which needs boss, which crosses slot, to lock body boss block under escape wheel protrusion by escape wheel protrusion, locking-in state Side).It can be not provided with similar lock body groove and boss on gusset 1025 and cross slot.

Being integrally formed close to the side for dialling pearl accommodating chamber 1011 in gusset 1022,1023 and 1024 on lock body lower cover 1 Equipped with boss block 104.Boss block 104 is arranged in the lower section (i.e. height lower than gusset) of corresponding gusset and close to corresponding convex Platform crosses slot, thus when rotate escape wheel 5 make tendon shape thereon protrusion 502 contact boss block 104 when, tendon shape protrusion 502 with Boss crosses slot alignment.In the present embodiment, the position of boss block is slightly offset from the center of lock body lower cover in boss mistake with lock The right side of slot.Boss block 10251 also is provided on gusset 1025, boss block 10251 is aligned with boss block 104.Here, Boss block 104 is used as the positioning mechanism of escape wheel 5, which is arranged so as to work as character code wheel shaft 4 from the first type drum Shaft position (coded lock is in the lock state at this time) is moved to third character code wheel shaft (coded lock is still within lock state at this time) Behind position, when type drum 3 and escape wheel 5 rotate predetermined angular, the escape retaining structure on escape wheel can contact (or adjacent By) positioning mechanism and cross slot with boss and be aligned, and when escape retaining structure contacts the positioning mechanism, multiple words Character code shown in code wheel present position constitutes current password.

Below gusset 1025, handle hole 1051 is equipped on the bottom wall 105 of lock body lower cover 1.Handle hole 1051 is for supplying Button 6 passes through.It is shown as Figure 18 B becomes apparent from, one end of button 6 is fixedly connected on the lower end of character code wheel shaft 4, and the other end exposes to It locks outside body lower cover 1, in order to user's operation.User can be with activation button 6, and to be unlocked, cipher change and password seek It returns and waits operation.

Fig. 2A shows lid 16 with the lock cooperated for the lock body lower cover 1 with Fig. 2, with lock under the structure and lock body of lid 16 The basic structure of lid 1 is identical.As shown in Fig. 2, lock body lower cover 16 also is provided with latch hook accommodating chamber 1601 and 1602, latch hook accommodating chamber 1601 and 1602 combine with the first latch hook accommodating chamber 101 and the second latch hook accommodating chamber 1010 locked on body lower cover 1 respectively, common to hold Receive latch hook.

Lock gall accommodating chamber 1603 is equipped at the position corresponding with lock body lower cover 1 of lid 16 with lock.Lock gall accommodating chamber 1603 cooperate with the lock gall accommodating chamber 106 for locking body lower cover 1, for accommodating lock gall 7.

Similarly, the middle upper portion of lid 16 is equipped with character code wheel shaft accommodating chamber 1604 and dials pearl accommodating chamber 1605 with lock. Character code wheel shaft accommodating chamber 1604 is combined with the character code wheel shaft accommodating chamber 109 of lock body lower cover 1, common one for accommodating character code wheel shaft Point.It dials pearl accommodating chamber 1605 and is combined with the pearl accommodating chamber 1011 of dialling for locking body lower cover 1, common accommodate dials pearl 10.

With lock the central part of lid 16 with the gusset 1021,1022,1023 of lid 1 with lock and 1024 corresponding positions It is equipped with gusset 1606,1607,1608 and 1609.Lock body groove is respectively equipped on gusset 1606,1607,1608 and 1609 16061,16071,16081 and 16091.

The gusset 1606,1607,1608 and 1609 of lid 16 and lock body groove 16061,16071,16081 thereon with lock And 16091 respectively with lock body lower cover 1 on gusset 1021,1022,1023 and its lock body groove 1021a, 1022a, 1023a and 1024a combination, co-owns and accommodates each type drum 3 and escape wheel 5.

Yard part 8 is looked for as shown in Figure 1, being also equipped on 105 inner surface of bottom wall of lock body lower cover 1.As Figure 8-9, it looks for Code part 8 is sheet shaped piece.The middle part of yard part 8 is looked for be equipped with profiled holes 801.Profiled holes 801 include interconnected 802 He of first part Second part 803, wherein first part is sized to pass through for the radial protrusion 4031 of character code wheel shaft 4 so that type drum Axis 4 can be moved down into third type drum shaft position.Second part 803 is sized to that radial protrusion 4031 is stopped to be worn It crosses.The outer peripheral surface of one end of yard part 8 is looked for be equipped with guiding surface 804, it, hereafter will be into one for cooperating with the protrusion 701 on lock gall 7 Step description.The other end of yard part 8 is looked for be equipped with installation protrusion 805, installation protrusion 805 is fixedly connected with one end of reset spring 12, It realizes the reset for looking for yard part 8, is as described further below.The other end of reset spring 12 is against lock body lower part.It should be understood that Reset spring 12 can also can drive the mechanism for looking for yard part to reset to substitute by any, such as elastic rubber etc.

As illustrated in figures 14-16, the peripheral surface of 7 lower part of lock gall is equipped with the lock gall protrusion 701 projected radially outwardly, lock gall Protrusion 701 to drive specifically with the cooperation of guiding surface 804 with the outer peripheral surface for looking for yard part 8 for looking for yard part 8 to move.Lock gall Bottom surface is equipped with lockhole 702, and key 15 is (as shown in figure 25) to can be inserted into lockhole 702 to drive lock gall 7 to rotate.Lock is equipped in lock gall Core, lock core can be using any suitable structures known in the art or leaved for development, as long as it can be realized in correct key Driving under, lock gall 7 can be driven to rotate, and under incorrect key actuated, the movement of lock gall 7 cannot be driven.It needs , it is noted that herein, the main function of lock gall 7 is to drive under the driving of correct key and look for the movement of yard part, and incorrect It under key, can not rotate, it is even more impossible to drive to look for a yard part movement.The structure of lock gall 7 can using it is known in the art or it is any to The locking that can be realized above-mentioned function of exploitation.In addition, the lock gall protrusion on lock gall can be replaced by any suitable driving structure In generation, as long as the driving structure can be realized in key actuated lock gall, driving looks for a yard part to look for a yard part displacement, thus type drum Axis can move.

When assembling, the long side connection latch hook reset spring 9 of latch hook 9 and the first latch hook accommodating chamber for being contained in lock body together 101.Escape wheel 5 is sleeved on the middle part of character code wheel shaft 4.Type drum 3 is sleeved on escape wheel 5.Lock spring 11 is placed in bullet In spring receiving hole 4012.Character code wheel shaft 4, escape wheel 5, type drum 3 and Lock spring 11 are placed on lock body lower cover 1 simultaneously together So that each type drum 3 is located between two gussets of lock body lower cover 1, and the head 401 of character code wheel shaft 4 is located at character code wheel shaft appearance It receives in chamber 109, and Lock spring 11 is against the roof of lock body lower cover.Pearl 10 is dialled to be placed in group pearl accommodating chamber 1011 and be located at word 4 two sides of code wheel axis.Lock gall 7 is placed in the lock gall accommodating chamber 106 of the left lower of lock body lower cover 1.Yard part 10 is looked for be placed on word 4031 lower section of radial protrusion of code wheel axis 4 simultaneously cooperates with the protrusion 701 on the lock gall 7 on lock gall 7.Button 6 sequentially passes through operation It hole 1051 and looks for the profiled holes 801 of yard part and is fixedly connected on the lower end of character code wheel shaft 4.

In above-described embodiment, look for a yard part, lock gall, the escape retaining structure on escape wheel and the boss block with lock total With the password searching device of composition the application.Lock gall is used as the driving structure that yard part is looked in driving, so that yard part is looked for look for code from first Part position is moved to second and looks for a yard part position, wherein second look at yard part position when looking for yard part to be in, character code wheel shaft can be from the One type drum shaft position is moved to third type drum shaft position.At this point, rotation type drum, makes it turn over certain angle, escape wheel On escape retaining structure will be blocked by boss block, the character code shown on type drum at this time is proper password.

It should be noted that the structure of boss block and its relative position should be set to escape retaining structure and lock: In lock state, escape retaining structure random position and do not interfere with boss block with lock；Only (this in the case where password recovers mode When, character code wheel shaft is triggered and moves downward in the case where looking for yard part release action), lock with boss block just and escape detent knot Configuration interaction.

The course of work of the coded lock in each embodiment is described below.

One, it normally shuts

Shutting need only allow the end of lock hook to enter lockhole and press lock hook.Slot, lock are crossed for convenience of expression lock body boss Body positioning mechanism, escape wheel protrusion, the positional relationship of type drum card slot, Figure 31 B are shown as each type drum in proper password position Locking-in state.

Wherein, as shown in figure 31b, each escape wheel protrusion is in type drum card slot, and can be rotated together.At this point, changing Code wheel protrusion extreme higher position, which is in, crosses slot lowest surfaces lower than top lock body boss, and escape wheel protrusion extreme lower position is higher than lower section Lock body positioning mechanism highest face.Based on current position, escape wheel protrusion is not crossed in slot in lock body boss, and type drum drives escape Wheel, which rotates its escape wheel protrusion, will not contact lock body positioning mechanism, and its rotation is not blocked.When each character code opinion position is in When incorrect password, i.e., each escape wheel protrusion does not have alignment lock body boss to cross slot, in this way, type drum main shaft cannot then push up It is dynamic, coded lock cannot be turned on.This is the state locked.Two, normal to unlock

When normal unlocking, after type drum is gone to correct password, unlocking can be completed by lower button.In normal unlocking shape Under state, the escape retaining structure on escape wheel is stuck in the boss with lock and crosses in slot and type drum card slot, and type drum can not at this time Rotation.

As shown in fig. 32b, after type drum being gone to correct password, following button is up pushed away, escape wheel protrudes out into Top lock body boss crosses slot but also in type drum card slot, and type drum cannot be rotated (because escape wheel protrusion is horizontal at this time Slot and type drum card slot are crossed across lock body boss), this upset password in the state of unlocking will not.Since type drum main shaft is upward Mobile position allows group pearl to fall into and dials pearl accommodating chamber, so that lock hook be made to be turned on.

Three, password is changed

2-23 referring to fig. 2, under normal unlocking condition, by lower button, character code wheel shaft drives escape wheel, makes on escape wheel Escape clamping mechanism (i.e. tendon shape protrusion) is detached from the type drum card slot that the boss with lock is crossed on slot and type drum, under this state word Code wheel can be with easy rotation, and hold button, which is pressed, not to be unclamped, then rotates character code and takes turns to the password position for wanting to be equipped with, decontrols press after the completion Button makes escape wheel return to original position, thus completes to change password.

As shown in Figure 33 B, when changing cryptographic state, escape wheel, which is protruded out into, crosses slot in upper lock body boss, in response to Type drum main shaft drives escape wheel to be moved further up, and protrudes out into escape wheel in last character code wheel bore, but not It can enter in top type drum card slot.When the lowest part of escape wheel protrusion has moved past the top of corresponding type drum card slot, Escape wheel can be freely rotated relative to the corresponding type drum, realize replacement password.It then, will after the completion of password setting Release button, to moving down, makes escape wheel protrude out into another card slot of corresponding type drum by type drum main shaft.Because being Different card slots, different location card slot correspond to different passwords, to realize replacement password.Four, when forgetting Password after shutting It unlocks and password is recovered

(1), for coded lock under normal switching-off, character code wheel shaft, which is stuck in, looks for aperture on yard part (i.e. the second parts of profiled holes) On, as shown in Figure 18 A.

(2), it is inserted into key, rotates clockwise, such as rotate about 40 °, looks for meeting under boss active force of yard part on lock gall It is slided to the right, at this point, the disengaging of character code wheel shaft looks for aperture and macropore (i.e. the first parts of profiled holes) on yard part concentric (referring to figure 27), character code wheel shaft can move down in the effect of spring force and will drive escape wheel when type drum axis moves down and move together, As shown in Figure 25-26 and 28.

(3), rotation type drum is sequentially completed type drum all on combination lock, all type drums until turning motionless Password when turning motionless is the former password being equipped with, as shown in figure 29.The step principle is the escape retaining structure on each escape wheel It is arranged on the boss block with lock to hinder, so that type drum is no longer able to turn.At this point, the escape detent knot on each escape wheel Structure is aligned with slot is crossed, and when user applies external force when button, type drum axis is moved up, and drives the escape detent on each escape wheel Structure moves into boss and crosses slot, and lock is opened.This acts while letting the user know that the password forgotten is exactly current type drum position Shown in password.

(4), after password has been given for change, key is rotated toward opposite direction, then opens and locks, then closes lock (type drum Axis needs to be detached from second position of character code wheel shaft), make that a yard part is looked for return to original position under the force of a spring, that is, prevents character code wheel shaft To moving down, as shown in figure 30.At this point, coded lock can normal use.

As illustrated in figure 34b, in the case where password recovers state, escape wheel protrusion extreme lower position is lower than the lock body localization machine of lower Structure highest face, and without departing from type drum card slot.The rotation of type drum makes escape wheel raised band move code wheel to rotate together, work as word Code wheel rotates to scheduled position, i.e. escape wheel is rotated from scheduled direction up to escape wheel protrusion encounters lock body positioning mechanism Position, escape wheel protrusion cannot be continued to rotate because being prevented by lock body positioning mechanism.Meanwhile type drum is located at above-mentioned predetermined position When, escape wheel protrusion is just aligned lock body boss and crosses slot, to achieve the effect that find unlocking cipher.Then, based on it is above-mentioned just The principle of normally opened lock opens lock as long as button is pressed.

The coded lock of the various embodiments described above is equipped with password searching device, in the case where forgetting Password, does not need to destroy The coded lock of password can be reacquired by the password searching device.

Presently preferred embodiments of the present invention has already been described in detail above, it is understood that having read of the invention above-mentioned say After awarding content, those skilled in the art can make various modifications or changes to the present invention.Such equivalent forms equally fall within this Apply for the appended claims limited range.

Claims (26)

1. a kind of coded lock, the coded lock includes lock body, latch hook, type drum, escape wheel and character code wheel shaft, wherein the lock Hook is installed on the lock, and the type drum is sleeved on the escape wheel, and the escape wheel is set in the character code wheel shaft Go up and be equipped with escape retaining structure, the character code wheel shaft be installed in the lock body and be at the first type drum shaft position or In the second type drum shaft position, at the first type drum shaft position, the character code wheel shaft limits the latch hook To lock the latch hook, and at the second type drum shaft position, the character code wheel shaft release the limit to the latch hook with Discharge the latch hook, which is characterized in that the coded lock further comprises password searching device, the password searching device packet It includes:

Look for a yard part, it is described to look for yard part to be associated with the character code wheel shaft and be arranged to look for yard part position or in the in first Two look for a yard part position, wherein when it is described look for yard part to be in described first looking for yard part position when, the character code wheel shaft is in described the At one type drum shaft position or at the second type drum shaft position；

Driving mechanism, the driving mechanism with it is described look for a yard part to be associated with and be arranged to driving described in look for a yard part so that described It looks for yard part to look for a yard part position to be moved to described second from described first and looks for a yard part position, wherein looking for yard part to be in described the when described Two when looking for yard part position, and the character code wheel shaft can be moved to third type drum shaft position from the first type drum shaft position； And

Positioning mechanism, the positioning mechanism are set in the lock body and are arranged so as to work as the character code wheel shaft from described first After type drum shaft position is moved to the third type drum shaft position, when the type drum rotates predetermined angular, the escape Retaining structure can contact the positioning mechanism, and when the escape retaining structure contacts the positioning mechanism, the word Character code shown in code wheel present position constitutes current password.

2. coded lock according to claim 1, which is characterized in that the character code wheel shaft is at the 4th type drum axle position It sets, wherein when the character code wheel shaft is in the 4th type drum shaft position, escape wheel is free to rotate relative to type drum.

3. coded lock according to claim 1, which is characterized in that the driving mechanism includes lock gall and key, the lock Gallbladder is configured to by the key actuated and is equipped with driving structure, wherein the driving structure is arranged to when the lock described in key actuated When gallbladder, a yard part is looked for described in the driving structure driving, so that described look for a yard part displacement, so that the character code wheel shaft can be moved to The third type drum shaft position.

4. coded lock according to claim 1, which is characterized in that the outer peripheral surface of one end of the character code wheel shaft is equipped with radial Protrusion；And it is described look for yard part be equipped with profiled holes, the profiled holes include interconnected first part and second part, institute First part is stated to be sized to pass through for the radial protrusion so that the character code wheel shaft can be moved to the third Type drum shaft position, and the second part is sized to that the radial protrusion is stopped to pass through.

5. coded lock according to claim 3, which is characterized in that the driving structure is to be set to from the outer of the lock gall The lock gall protrusion projected radially outwardly in week, the lock gall protrusion and the outer peripheral surface for looking for yard part cooperate to drive and described look for a yard part Movement.

6. coded lock according to claim 5, which is characterized in that the outer peripheral surface rounded corner of the lock gall protrusion；And/or institute It states and the outer peripheral surface of yard part is looked for be equipped with guiding surface.

7. coded lock according to claim 1, which is characterized in that

The type drum is ring bodies, and the periphery wall of the type drum is equipped with character code, and the internal perisporium of the type drum is equipped with Type drum card slot corresponding with the character code；

The escape retaining structure is to be projected radially outwardly from the peripheral surface of the escape wheel with predetermined axial length Tendon shape protrusion；

Spaced multiple gussets are equipped with the lock, a type drum is wherein accommodated between every two gusset, and The top of the gusset is equipped with lock body groove, and the bottom of the lock body groove is equipped with boss and crosses slot, and the escape wheel is held on institute It states above lock body groove；And

The location structure includes that the side of the gusset is arranged in cross the boss block of slot close to the boss, wherein described convex Platform block is configured so as to rotate the type drum when the character code wheel shaft is in the third type drum shaft position, work as institute When stating boss block described in tendon shape projection contacts, the tendon shape protrusion is crossed slot with the boss and is aligned.

8. coded lock according to claim 1, which is characterized in that the quantity of the quantity of the type drum and the escape wheel Identical, each type drum is sleeved on the escape wheel and the length of the escape wheel is than the type drum Length is long.

9. coded lock according to claim 1, which is characterized in that the password searching device, which further includes, is contained in institute The resetting-mechanism in lock body is stated, the resetting-mechanism in the character code wheel shaft from the third type drum shaft position for being moved to After the first type drum shaft position, drives and described look for a yard part to be moved to described first looking for a yard part position.

10. coded lock according to claim 9, which is characterized in that the resetting-mechanism is first back-moving spring, described One end of one reset spring looks for yard part and the other end of the first back-moving spring against the lock body against described.

11. coded lock according to claim 10, which is characterized in that the coded lock further includes second back-moving spring, One end of the second back-moving spring makes described against lock body, the other end of the second back-moving spring against the character code wheel shaft Type drum axially lower effect.

12. coded lock according to claim 11, which is characterized in that the coded lock further includes third reset spring, One end of the third reset spring is against lock body, and the other end of the third reset spring is against the longer end of the latch hook Portion unclamps latch hook automatically when opening.

13. a kind of coded lock, the coded lock includes lock body, latch hook, type drum, escape wheel and character code wheel shaft, wherein described Latch hook is installed on the lock, and the type drum is sleeved on the escape wheel, and the escape wheel is set in the type drum On axis and it is equipped with escape retaining structure, the character code wheel shaft is installed in the lock body and is at the first type drum shaft position Or be in the second type drum shaft position, at the first type drum shaft position, the character code wheel shaft to the latch hook limited with The latch hook is locked, and at the second type drum shaft position, the character code wheel shaft releases the limit to the latch hook to release Put the latch hook, which is characterized in that the coded lock further comprises password searching device, and the password searching device includes lock Gallbladder and key, wherein the lock gall is associated with the character code wheel shaft and is configured to rotate in the lock gall described in the key actuated pre- When determining angle, the character code wheel shaft is displaced to third type drum shaft position, and when the character code wheel shaft is in the third word When code wheel shaft position, the type drum can be turned to and by backstop in predetermined position, in the pre-position, the type drum Shown in character code constitute current password.

14. coded lock according to claim 11, which is characterized in that the character code wheel shaft is at the 4th character code wheel shaft Position, wherein when the character code wheel shaft is in the 4th type drum shaft position, escape wheel is free to rotate relative to type drum.

15. coded lock according to claim 13, which is characterized in that the password searching device further comprises looking for code Part, wherein described look for yard part to be associated with the lock gall and the character code wheel shaft and described in being arranged so that the lock gall can drive A yard part is looked for, looks for yard part to look for a yard part position to be moved to second from first looking for a yard part position so that described, and look for a yard part to be in when described Described first when looking for yard part position, and the character code wheel shaft is in the first type drum shaft position or in second character code Take turns shaft position, and when it is described look for yard part to be in described second looking for yard part position when, the character code wheel shaft can be from first word Code wheel shaft position is moved to third type drum shaft position.

16. coded lock according to claim 15, which is characterized in that the password searching device further comprises localization machine Structure, the positioning mechanism are set in the lock body and are arranged so as to work as the character code wheel shaft from the first type drum axle position It sets after being moved to the third type drum shaft position, when the type drum rotates predetermined angular, the escape retaining structure energy The positioning mechanism is enough contacted, and when the escape retaining structure contacts the positioning mechanism, the current institute of type drum The character code shown in position constitutes current password.

17. coded lock according to claim 15, which is characterized in that the outer peripheral surface of one end of the character code wheel shaft is equipped with diameter To protrusion；And it is described look for yard part to be equipped with profiled holes, the profiled holes include interconnected first part and second part, The first part is sized to be passed through for the radial protrusion so that the character code wheel shaft can be moved to described the Three type drum shaft positions, and the second part is sized to that the radial protrusion is stopped to pass through.

18. coded lock according to claim 15, which is characterized in that the periphery of the lock gall is equipped with and projects radially outwardly Lock gall protrusion, the lock gall protrusion and the outer peripheral surface for looking for yard part cooperate to drive and described yard part be looked for move.

19. coded lock according to claim 18, which is characterized in that the outer peripheral surface rounded corner of the lock gall protrusion；And/or The outer peripheral surface for looking for yard part is equipped with guiding surface.

20. coded lock according to claim 13, which is characterized in that the type drum is ring bodies, the type drum Periphery wall is equipped with character code, and the internal perisporium of the type drum is equipped with type drum card slot corresponding with the character code；

The escape retaining structure is to be projected radially outwardly from the peripheral surface of the escape wheel with predetermined axial length Tendon shape protrusion；

Spaced multiple gussets are equipped with the lock, a type drum is wherein accommodated between every two gusset, and The top of the gusset is equipped with lock body groove, and the bottom of the lock body groove is equipped with boss and crosses slot, and the escape wheel is held on institute It states above lock body groove；And

The location structure includes that the side of the gusset is arranged in cross the boss block of slot close to the boss, wherein described convex Platform block is configured so as to rotate the type drum when the character code wheel shaft is in the third type drum shaft position, work as institute When stating boss block described in tendon shape projection contacts, the tendon shape protrusion is crossed slot with the boss and is aligned.

21. coded lock according to claim 13, which is characterized in that the number of the quantity of the type drum and the escape wheel Measure identical, each type drum is sleeved on the escape wheel and the length of the escape wheel is than the type drum Length it is long.

22. coded lock according to claim 15, which is characterized in that the password searching device, which further includes, to be contained in Resetting-mechanism in the lock body, the resetting-mechanism are used for mobile from the third type drum shaft position in the character code wheel shaft To after the first type drum shaft position, drives and described look for a yard part to be moved to described first looking for a yard part position.

23. coded lock according to claim 22, which is characterized in that the resetting-mechanism is first back-moving spring, described One end of first back-moving spring looks for yard part and the other end of the first back-moving spring against the lock body against described.

24. coded lock according to claim 23, which is characterized in that the coded lock further includes second back-moving spring, One end of the second back-moving spring makes described against lock body, the other end of the second back-moving spring against the character code wheel shaft Type drum axially lower effect.

25. coded lock according to claim 24, which is characterized in that the coded lock further includes third reset spring, One end of the third reset spring is against lock body, and the other end of the third reset spring is against the longer end of the latch hook Portion unclamps latch hook automatically when opening.

26. a kind of coded lock, the coded lock includes lock body, latch hook, type drum, escape wheel and character code wheel shaft, wherein described Latch hook is installed on the lock, and the type drum is sleeved on the escape wheel, and the escape wheel is set in the type drum On axis and it is equipped with escape retaining structure, which is characterized in that the coded lock further comprises password searching device, and the password is sought Return device includes lock gall and key, wherein the lock gall is associated with the character code wheel shaft and is configured to the key actuated institute When stating lock gall rotation predetermined angular, the character code wheel shaft is displaced to a position, and in the position, the type drum can turn to simultaneously By backstop in predetermined position, in the pre-position, character code shown in the type drum constitutes current password.