CN104563631B

CN104563631B - Mechanical combination lock

Info

Publication number: CN104563631B
Application number: CN201510014397.4A
Authority: CN
Inventors: 庄谦丰
Original assignee: NINGBO DIYANG ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: Zhongshan Shili Locks Products Co., Ltd.
Priority date: 2015-01-01
Filing date: 2015-01-01
Publication date: 2017-01-11
Anticipated expiration: 2035-01-01
Also published as: CN104563631A

Abstract

The invention relates to a mechanical combination lock, comprising a lock shell and a lock mechanism in the lock shell; the lock mechanism comprises a rotating wheel, a connecting shaft, an unlocking strip, a transmission part, a slide part, balance rods, balance screws, balance plates, a locking rod, a positioning component and an unlocking handle. The codes of the mechanical lock are set to be the balance degree of the balance rods; that is, the up-down positions of the balance plates at the rear ends of the balance rods are adjusted by different depths of the balance screws screwed in the balance rods and by directly using the lever principle; only when second through-holes on the balance plates are aligned with one another, the mechanical lock can be unlocked, so that the shortcoming of being easily stolen in the conventional password is avoided; only a user can adjust the balance screws and balance screw rods according to the lever balance degree set for himself so as to rapidly unlock the mechanical lock; bystanders are difficult to acquire the lever type password by observation or verbal instruction; therefore, the mechanical lock ensures that the password is not easy to be stolen, and has good anti-theft function.

Description

A kind of mechanical code lock

Technical field

The present invention relates to mechanical lock technical field, refer specifically to a kind of purely mechanic coded lock based on lever principle.

Background technology

The mechanical code lock sold in the market uses numerical ciphers rotating disk form mostly, and rotating password turntable according to the password arranged when i.e. unblanking can open coded lock.Such lockset password can be passed on through oral, is easily eavesdropped acquisition password by others, is the most easily peeped by others and obtain password when unblanking, and security performance has much room for improvement.

nullAuthorization Notice No. is that the Chinese invention patent " straight inserting opening counter lock " (application number: 200610019988.1) of CN1908355B discloses a kind of structure，Lever principle is applied in lockset by this structure，It is additionally arranged the balanced lever being articulated with on lock body，The left and right of this balanced lever is respectively arranged at two ends with downward hook portion，When unblanking，By in key channel fully-inserted with the key that this lock matches by each balanced lever jack-up to equilbrium position，The hook portion at two ends, all balanced lever left and right and the flange at the first lockplate two ends are simultaneously in released state (i.e. the bottom in two ends hook portion is above the upper surface of the first driving plate two end boss)，Now the first lockplate is released，Under the second back-moving spring pulling force effect, the first lockplate is moved to the left (i.e. moving) to the direction leaving lockhole，The upper hookhead forcing locking lever moves down the hole, location departing from the first lockplate，And upper hookhead moves up the hole, location departing from the second lockplate，Thus release the constraint to the second lockplate，Second lockplate and locking bolt are moved to the left the groove departed from inside lock tube free end under action of reset spring，So that lock tube free end can outwardly open.Owing to said structure uses string balanced lever as the parts locking the first lockplate, only use and the key of this lock pairing, by all balanced lever jack-up to equilbrium position, could further lock be opened, the introducing of balanced lever adds the difficulty that lockset is unblanked, and enhances the anti-theft feature of lock.But, owing to the balanced lever in lockset is to use the key coordinated with lock to carry out operating, if there being people to use illegal means to obtain key, equally lockset is opened, then the anti-theft feature strengthening lockset just loses meaning.

Therefore, for being currently based on the mechanical lock of lever principle, await making further improvements.

Summary of the invention

The technical problem to be solved is the present situation for prior art, it is provided that a kind of password is difficult to the mechanical code lock being stolen.

The present invention solves the technical scheme that above-mentioned technical problem used: a kind of mechanical code lock, including lock housing and be arranged at the latch mechanism in this lock housing, it is characterised in that described lock housing has lockhole；

Described latch mechanism includes:

Connecting shaft, is longitudinally disposed in aforementioned lock housing；

Runner, has extended internally connecting portion for semicircular middle part and front portion has offered at least three the first through hole, and aforesaid connecting portion can be rotatably arranged in aforesaid connecting shaft；

Unblank bar, arrange for semicircular and near the medial wall of aforementioned runner, the medial wall of this bar of unblanking is provided with internal tooth；

Driving member, is connected on aforementioned runner, and lower end is provided with the gear being meshed with aforementioned internal tooth, and upper end is provided with the first bevel gear；

Shifting part, front end is exposed to the front end face of lock housing, and rear end is provided with the second bevel gear being meshed with aforementioned first bevel gear；

The gimbal lever, is at least three, and the Mei Gen gimbal lever runs through the first corresponding through hole and is set up on runner, and the front end of the Mei Gen gimbal lever is respectively provided with screwed hole, and connecting in each screwed hole has a mass screw that can move forward and backward；The rear end of the Mei Gen gimbal lever is vertically arranged with a balancing patch, and this balancing patch offers the second through hole passed for aforementioned bar of unblanking；

Securing rod, is horizontally set in aforesaid lock housing and can insert in lockhole, and downside has the protuberance arranged along securing rod length direction, and the middle part of this protuberance is formed with tooth bar, and the upside of described securing rod has hole, location；

Positioning component, is arranged at above aforementioned securing rod and has the location bar that can insert in hole, location, sidewall has one end insertion for bar of unblanking thus will position the jack that bar lifts；And

Unblanking handle, be connected with aforementioned runner and be exposed to the front end face of lock housing, rear end is meshed with the tooth bar on aforementioned securing rod by a gear train.

In such scheme, described positioning component includes housing and is arranged at the spring in this housing, location bar and fastener, the upper end of described spring is connected with the top of housing, the lower end of described spring is connected with the top of fastener, location bar is connected to the bottom of fastener, the bottom of described housing has the third through-hole passed for location bar, and a sidewall of described housing has longitudinal chute exposed for the card division on fastener, pulls downward on described fastener along this chute and location bar can be driven to move down；The first gathering hole passing and pulling fastener for staff is had on the rear end face of described lock housing；When locking, first rotate handle of unblanking, the lockhole that securing rod moves horizontally under the drive of gear train and passes in lock housing, then hands is stretched in the first gathering hole by user, manually fastener is pulled down, drive location bar to snap in the hole, location of securing rod, it is achieved thereby that firmly lock.

In order to effectively utilize the inner space of lock housing, as far as possible lock housing is done little, the rear end face of described lock housing has the T-shaped hole that the rear end for runner and bar of unblanking passes.

For the ease of operation, the front end face of described lock housing has the second gathering hole exposed for the gimbal lever, mass screw and runner front portion；The lower section of described second gathering hole offers horizontal the 3rd gathering hole moved for handle horizontal of unblanking.

In above-mentioned each preferred version, the right of described second gathering hole extends to the right along middle part and is formed for the strip shape gob that the gimbal lever slips into, arrange this structure be in order to meet the gimbal lever move horizontally in the range of reduce onlooker's observation degree to lock housing internal structure to greatest extent, so that it is guaranteed that lever password will not be compromised.

Preferably, the lock housing of described second gathering hole lower left is provided with one and can prevent from unblanking the pin that handle is moved to the left, to prevent user operation from excessively causing the damage of lock.

Compared with prior art, it is an advantage of the current invention that: the password of mechanical lock is set to the balanced degree of the gimbal lever, it it not the most the combination using combined type digital password commonly used in the prior art or key with password, but directly utilize lever principle, screw in that the degree of depth in the gimbal lever is different and the upper-lower position of the balancing patch of adjustment rod rear end by mass screw, only mechanical lock could be opened when the second through hole on each balancing patch is mutually aligned, thus avoid the drawback that ordinary cryptographic is easily stolen, only user can come adjustment screw and balance screw rod according to the lever balance degree that oneself sets, thus quickly mechanical lock is opened, onlooker is difficult to obtain lever password by observing or explain in words, the password that this guarantees mechanical lock of the present invention is difficult to be stolen, there is good anti-theft feature；Meanwhile, user can arrange the degree of balance of lever by the weight of processing balancing patch or hole size etc., changes password.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment of the present invention；

Fig. 2 is the structural representation of another angle of the embodiment of the present invention；

Fig. 3 is the exploded view of Fig. 1；

Fig. 4 is the exploded view of another angle of Fig. 1；

Fig. 5 is the exploded view of the another angle of Fig. 1；

Fig. 6 is the exploded view of positioning component in Fig. 3.

Detailed description of the invention

Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.

As shown in figs. 1 to 6, the mechanical code lock of the present embodiment includes lock housing 1 and is arranged at the latch mechanism in this lock housing 1, and the latch mechanism in the present embodiment includes runner 3, connecting shaft 4, bar 5 of unblanking, driving member 6a, shifting part 6b, gimbal lever 7a, mass screw 7b, balancing patch 7c, securing rod 8, positioning component 9 and handle 2 of unblanking.The upper end of connecting shaft 4 and lower end are fixed on top board and the base plate of lock housing 1 by screw respectively, runner 3 is shaped to have certain thickness half-annuli, the middle part of runner 3 has extended inwardly to form connecting portion 30, and runner 3 is connected in connecting shaft 4 by what connecting portion 30 rotated.Unblanking the half-annuli that bar 5 is shaped to match with runner 3, bar 5 of unblanking arranges near the medial wall of runner 3, and has internal tooth 51 on the medial wall of bar 5 of unblanking.The middle part of driving member 6a is connected with runner 3 and does not hinder driving member 6a to rotate relative to runner 3, and the lower end of driving member 6a is provided with the gear 61a that the internal tooth 51 with bar 5 of unblanking is meshed, and the upper end of driving member 6a is provided with the first bevel gear 62a.Shifting part 6b is fixed on inside the top board of lock housing 1 by a fixed block 61b, the front end of shifting part 6b is exposed to the front end face of lock housing 1, the front end face of lock housing 1 is provided with the steady pin 11 of fixing shifting part 6b, the rear end of shifting part 6b is provided with a second bevel gear 62b being meshed with the first bevel gear 62a, rotary dial part 6b can drive driving member 6a to rotate, owing to the gear 61a of driving member 6a lower end is meshed with the internal tooth 51 of bar 5 of unblanking, therefore, rotary dial part 6b can drive bar 5 of unblanking to move, but, under mechanical lock lock-out state, driving member 6a does not contacts with shifting part 6b, i.e. first bevel gear 62a and the second bevel gear 62b can not engage each other, so bar 5 of unblanking can not be driven to move at mechanical lock lock-out state backspin transfer moving part 6b.

The rear end of handle 2 of unblanking is connected with the connecting portion 30 of runner 3, horizontal the 3rd gathering hole 13 moved horizontally for handle 2 of unblanking is offered on the front end face of lock housing 1, stir to the right, along the 3rd gathering hole 13, handle 2 of unblanking to drive runner 3 and unblank articles 5 to turn right around connecting shaft 4, when runner 3 is after connecting shaft 4 turns right certain distance, driving member 6a contacts with shifting part 6b, i.e. first bevel gear 62a and the second bevel gear 62b is meshed, rotating shifting part 6b can drive driving member 6a to rotate, the bar 5 of unblanking being meshed with driving member 6a can be driven further to move.

Gimbal lever 7a in the present embodiment has three, corresponding, the front portion of runner 3 has three the first through holes 31 passed for gimbal lever 7a, and gimbal lever 7a runs through the first through hole 31 and is set up on runner 3.The front end of Mei Gen gimbal lever 7a all has a screwed hole, and mass screw 7b also can move forward and backward in being threadedly connected to the screwed hole of corresponding gimbal lever 7a；The rear end of Mei Gen gimbal lever 7a connects has a balancing patch 7c, balancing patch 7c to be vertically arranged, and offers the second through hole 71c passed for bar 5 of unblanking on balancing patch 7c.The second gathering hole 12 exposed for gimbal lever 7a, mass screw 7b and runner 3 front portion is had on the front end face of lock housing 1.Securing rod 8 is horizontally set in lock housing 1, the downside of securing rod 8 has the protuberance 81 arranged along securing rod 8 length direction, the middle part of this protuberance 81 is formed with tooth bar 811, unblank handle 2 is meshed with the tooth bar 811 on securing rod 8 by a gear train 10, rotation handle 2 of unblanking can drive securing rod 8 to move left and right, and the sidewall of lock housing 1 has the lockhole 14 passed for securing rod 8.

The upside of securing rod 8 offers hole, location, correspondence, and positioning component 9 has the location bar 91 that can insert in hole, location.Concrete, positioning component 9 is arranged at above securing rod 8, positioning component 9 includes housing 90 and is arranged at the spring 92 in this housing 90, location bar 91 and fastener 93, the upper end of spring 92 is connected with the top of housing 90, the lower end of spring 92 is connected with the top of fastener 93, location bar 91 is connected to the bottom of fastener 93, the bottom of housing 90 has the third through-hole 901 passed for location bar 91, one lower sidewall of fastener 93 has the card division 931 of outwardly convex, longitudinal chute 94 exposed for card division 931 is had on one sidewall of housing 90, pulling downward on card division 931 along this chute 94 can drive location bar 91 to move down and position, thus prevent securing rod 8 from moving left and right；Have one end insertion for bar 5 of unblanking on the another side of housing 90 thus the jack 95 that bar 91 lifts will be positioned, thus eliminating the position-limiting action to securing rod 8, such that it is able to securing rod 8 is exited in the lockhole 14 of lock housing 1 by rotation handle 2 of unblanking, mechanical lock is opened.The first gathering hole 15 passing and pulling fastener 93 for staff is had on the rear end face of lock housing 1, when locking, first rotate handle 2 of unblanking, the lockhole 14 that securing rod 8 moves horizontally under the drive of gear train 10 and passes in lock housing 1, then during hands is stretched into the first gathering hole 15 by user, manually fastener 93 is pulled down, drive location bar 91 to snap in the hole, location of securing rod 8, it is achieved thereby that the secure lock of mechanical lock.

In the present embodiment, in order to effectively utilize the inner space of lock housing 1, as far as possible lock housing 1 is done little, the rear end face of lock housing 1 has the T-shaped hole 16 that the rear end for runner 3 and bar 5 of unblanking passes.For the ease of operation, the right of second gathering hole 12 extends to the right along middle part and is formed for the strip shape gob 17 that gimbal lever 7a slips into, arrange this structure be in order to meet gimbal lever 7a move horizontally in the range of reduce onlooker's observation degree to lock housing 1 internal structure to greatest extent, so that it is guaranteed that lever password will not be compromised.It is provided with one in the lock housing 1 of the second gathering hole 12 lower left can prevent from unblanking the pin 18 that handle 2 is moved to the left, to prevent user operation from excessively causing the damage of lock.

When the mechanical lock using the present embodiment is locked, first rotate handle 2 of unblanking, the lockhole 14 that securing rod 8 moves horizontally under the drive of gear train 10 and passes in lock housing 1, then during hands is stretched into the first gathering hole 15 by user, manually fastener 93 is pulled down, location bar 91 is driven to snap in the hole, location of securing rod 8, it is achieved thereby that the secure lock of mechanical lock, under mechanical lock lock-out state, the rear end of runner 3 and bar 5 of unblanking passes T-shaped hole 16, the unblank front end of bar 5 does not contacts with balancing patch 7c, and gimbal lever 7a is in nonequilibrium condition, the second through hole 71c on i.e. three balancing patch 7c does not lines up.nullWhen needing to unblank，First pass through adjustment screw 7b to screw in the degree of depth in gimbal lever 7a and make gimbal lever 7a balance，Even if the second through hole 71c on three balancing patch 7c is mutually aligned，Stir the most to the right handle 2 of unblanking，Runner 3 and bar 5 of unblanking is driven to move right，Rear end to runner 3 and bar 5 of unblanking moves in lock housing 1 from T-shaped hole 16、Gimbal lever 7a moves in strip shape gob 17，Now，Driving member 6a contacts with shifting part 6b，First bevel gear 62a and the second bevel gear 62b is meshed，Rotating shifting part 6b drives driving member 6a to rotate，Internal tooth 51 owing to unblanking on bar 5 is meshed with the second gear 61a on driving member 6a，Therefore，Bar 5 of unblanking can be driven further to move，Until unblanking, the front end of bar 5 passes the second through hole 71c on balancing patch 7c，And insert in the jack 95 of positioning component 9，Unblank bar 5 front end impact fastener 93 thus eliminate the effect between fastener 93 and housing 90，Location bar 91 is upwards retracted in housing 90 under the effect of spring 92，Thus eliminate the location bar 91 position-limiting action to securing rod 8，Now，Rotation is unblanked handle 2，Securing rod 8 can move horizontally and exit the lockhole 14 in lock housing 1 under the drive of gear train 10，Realize unblanking of mechanical lock.

nullPassword is set to the balanced degree of gimbal lever 7a by the mechanical lock of the present embodiment，It it not the most the combination using combined type digital password commonly used in the prior art or key with password，But directly utilize lever principle，The upper-lower position of the balancing patch 7c of adjustment bar 7a rear end by the degree of depth difference in mass screw 7b screw-in gimbal lever 7a，Only mechanical lock could be opened when the second through hole 71c on each balancing patch 7c is mutually aligned，Thus avoid the drawback that ordinary cryptographic is easily stolen，Only user can come adjustment screw 7b and balance screw rod 7a according to the lever balance degree that oneself sets，Thus quickly mechanical lock is opened，Onlooker is difficult to obtain lever password by observing or explain in words，The mechanical lock password that this guarantees the present embodiment is difficult to be stolen，There is good anti-theft feature.

Claims

1. a mechanical code lock, including lock housing and be arranged at the latch mechanism in this lock housing, it is characterised in that described lock housing There is lockhole；

Described latch mechanism includes:

Connecting shaft, is longitudinally disposed in aforementioned lock housing；

Runner, has extended internally connecting portion for semicircular middle part and front portion has offered at least three the first through hole, aforesaid Connecting portion can be rotatably arranged in aforesaid connecting shaft；

Driving member, is connected on aforementioned runner, and lower end is provided with the gear being meshed with aforementioned internal tooth, and upper end is provided with One bevel gear；

Shifting part, front end is exposed to the front end face of lock housing, and rear end is provided with second can be meshed with aforementioned first bevel gear Bevel gear；

The gimbal lever, is at least three, and the Mei Gen gimbal lever runs through the first corresponding through hole and is set up on runner, and every is put down The front end of weighing apparatus bar is respectively provided with screwed hole, and connecting in each screwed hole has a mass screw that can move forward and backward；The Mei Gen gimbal lever Rear end be vertically arranged with a balancing patch, this balancing patch offers the second through hole passed for aforementioned bar of unblanking；

Securing rod, is horizontally set in aforesaid lock housing and can insert in lockhole, and downside has along securing rod length direction cloth The protuberance put, the middle part of this protuberance is formed with tooth bar, and the upside of described securing rod has hole, location；

Positioning component, is arranged at above aforementioned securing rod and has the location bar that can insert in hole, location, sidewall has confession Unblank one end of bar insert thus will the location jack that lifts of bar；And

Unblanking handle, be connected with aforementioned runner and be exposed to the front end face of lock housing, rear end is by a gear train and aforementioned lock Tooth bar in fixed pole is meshed.

Mechanical code lock the most according to claim 1, it is characterised in that: described positioning component includes housing and sets Being placed in the spring in this housing, location bar and fastener, the upper end of described spring is connected with the top of housing, described spring Lower end be connected with the top of fastener, described location bar is connected to the bottom of fastener, and the bottom of described housing has for fixed The position third through-hole that passes of bar, a sidewall of described housing has longitudinal chute exposed for fastener, along this chute to Under pull described fastener can drive location bar move down.

Mechanical code lock the most according to claim 2, it is characterised in that: have confession on the rear end face of described lock housing Staff passes and pulls the first gathering hole of fastener.

4. according to the mechanical code lock described in claim 1 or 2 or 3, it is characterised in that: the rear end face of described lock housing On have the T-shaped hole that the rear end for runner and bar of unblanking passes.

5. according to the mechanical code lock described in claim 1 or 2 or 3, it is characterised in that: the front end face of described lock housing On have the second gathering hole exposed for the gimbal lever, mass screw and runner front portion.

Mechanical code lock the most according to claim 5, it is characterised in that: the lower section of described second gathering hole is offered There is horizontal the 3rd gathering hole moved for handle horizontal of unblanking.

Mechanical code lock the most according to claim 6, it is characterised in that: in the edge, the right of described second gathering hole Portion extends to the right and is formed for the strip shape gob that the gimbal lever slips into.

Mechanical code lock the most according to claim 6, it is characterised in that: the lock of described second gathering hole lower left It is provided with one on shell can prevent from unblanking the pin that handle is moved to the left.