CN104695768B

CN104695768B - Combination lock

Info

Publication number: CN104695768B
Application number: CN201510067126.5A
Authority: CN
Inventors: 陈秀哲; 胡宗建
Original assignee: PINGHU YONGQIANG LOCKS INDUSTRY Co Ltd
Current assignee: Jiaxing Jingyu Lock Co ltd
Priority date: 2015-02-07
Filing date: 2015-02-07
Publication date: 2017-02-22
Anticipated expiration: 2035-02-07
Also published as: CN104695768A

Abstract

The invention provides a combination lock, and aims to solve the problem that an existing combination lock is liable to damage. The combination lock comprises a bottom frame, a lock hook, a bottom shell, an upper cover, a movable piece, a reset spring and a cryptographic device, wherein a first arc-shaped groove is formed in the bottom shell; the movable piece is fixedly connected with a stop block; a stop rod which is used for preventing the stop block from rotating is fixedly connected with the bottom frame; the stop rod is arranged in the first arc-shaped groove in a penetrating manner; when the movable piece is positioned at a reset position, the stop block is positioned on the outer side of the first arc-shaped groove; after the cryptographic device pushes the movable piece to compress the reset spring, the stop block is positioned above the first arc-shaped groove; a second arc-shaped groove which is matched with the lock hook and is communicated with the inlet of the lock hook is formed in the bottom shell. According to the combination lock, the lock hook is connected with the bottom cover, the bottom shell is hooked with the lock hook after rotating, and the bottom shell is fixed by adjusting the cryptographic device, so that a box is locked; the combination lock is compact in structure and easy to operate; the lock hook is not connected with an internal structure controlled by the cryptographic device, and the internal structure of the combination lock cannot be damaged by the lock hook because of tensile force; therefore, the service life is prolonged.

Description

A kind of coded lock

Technical field

The present invention relates to a kind of coded lock.

Background technology

In order to prevent the thing in draw-bar box from losing, coded lock is often arranged on draw-bar box；But existing password Lock, structure is insecure to be easily damaged chest；The collision being caused when closed due to casing and case lid, is easily damaged coded lock, fall The service life of low coded lock；Because the internal structure of coded lock is excessively simple, the security performance that is easily cracked is relatively low.

Content of the invention

The invention provides a kind of coded lock is it is intended to solve the problems, such as that existing coded lock is easily damaged.

In order to solve above technical problem, the present invention is achieved through the following technical solutions：A kind of coded lock, including being connected in Underframe on casing, the latch hook being connected on case lid, switching and are provided with the drain pan of latch hook import, snap onto on drain pan on underframe Upper lid, be arranged on activity template above drain pan, be arranged between activity template and upper lid and the reset for making activity template reset Spring, it is arranged on and covers and for promoting the encryption apparatus of activity template compression reseting spring；Drain pan is provided with the first deep-slotted chip breaker, Block is fixed with activity template, underframe is fixed with the pin for stopping block rotation, pin is located in the first deep-slotted chip breaker； When activity template is in reset position, block is located at the outside of the first deep-slotted chip breaker；When encryption apparatus promotes activity template compression to reset After spring, block is located at directly over the first deep-slotted chip breaker；Described drain pan is provided with matching with latch hook and communicating with latch hook import Two deep-slotted chip breakers.

Further, also include being connected in the limiting plate above drain pan；Under described activity template is included above limiting plate Activity template, the upper activity template above lower activity template；Lower activity template is provided with limited block, and drain pan is provided with spacing for limiting The stopper slot of block position；Upper activity template is provided with the pushing block for promoting lower activity template；Block is connected on lower activity template；It is easy to Installation and manufacture, limited block and stopper slot are easy to the extreme position of Controlled mobilization piece, and the collision of activity template in minimizing, thus increase Plus service life.

Further, described encryption apparatus includes three upper lid axles being connected in lid bottom surface, and every upper lid axle is from top to bottom Be arranged with password wheels successively, support spring that cylindrical fixture block, lower end are connected with limiting plate upper surface；Upper activity template is provided with Three the first draw-in grooves placing three fixture blocks respectively, are equipped with the first projection in each first draw-in groove, each fixture block are equipped with The groove matching with the first projection；The convenient position controlling upper activity template by password wheels.

Further, cover, on described, the push rod being equipped with for limiting upper activity template position, upper activity template is provided with and push rod The second draw-in groove matching；It is easy to change the password of coded lock.

Further, also include the lock core that is arranged between drain pan and upper lid, the lower end of lock core is provided with for promoting block It is pushed into the second projection inside the first deep-slotted chip breaker；It is easy to customs officer with key rotary locking cylinder device, thus opening coded lock.

Further, described back-moving spring has two, and lower activity template is provided with two and is connected with two back-moving springs respectively Push rod；Two back-moving springs, are easy to make lower activity template stress equalization.

Further, on described drain pan, switching has fork, and apart from transit point, one end farther out is a end to fork, and fork distance turns The nearer one end of contact is b end；Drain pan be provided with make fork a end be located at latch hook import in protection spring, the b end of fork with Protection spring is connected；When case lid is closed with casing, fork plays the effect of buffering, reduces the collision of latch hook and drain pan, improves Service life.

Further, also include the locating ring being connected on underframe and being located in drain pan center, locating ring is provided with No. one Bar and No. two poles, a pole and No. two poles are respectively positioned on the top of drain pan, and drain pan is provided with and a pole and No. two Bar matches and limiting a locating piece of drain pan slewing area and No. two locating pieces；It is easy to control the anglec of rotation of upper lid.

Further, when latch hook is separated with drain pan, the b end of a locating piece and fork is close to the two of a pole respectively Side；Can prevent lid from rotating.

Further, also include the arc coaming plate that is connected on drain pan, be provided with chute in No. two poles, in chute, be provided with cunning Block, is provided with the holddown spring making slide block be adjacent on madial wall on arc coaming plate between slide block and the bottom of chute；Described arc Coaming plate is provided with a draw-in groove corresponding to two extreme positions of slide block respectively and No. two draw-in grooves；During rotary upper cover, slide block reaches pole During extreme position, sound can be sent, be easy to provide the prompting stopped the rotation.

Compared with prior art it is an advantage of the invention that：It is connected with bottom using latch hook in the present invention, drain pan passes through rotation Afterwards, together with hanging over latch hook, fix drain pan by adjusting encryption apparatus, thus pinning chest, compact conformation, simple to operate； The internal structure that latch hook is not controlled with encryption apparatus is connected, and latch hook will not damage the internal structure of coded lock because of pulling force, improves Service life.

Brief description

The invention will be further described below in conjunction with the accompanying drawings：

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

Fig. 2 is the structural representation after covering in present invention removal；

Fig. 3 is the structural representation of upper lid in the present invention；

Fig. 4 is a structural representation when part for encryption apparatus and upper activity template connect in the present invention；

Fig. 5 is the structural representation of fixture block in the present invention；

Fig. 6 is the structural representation of drain pan and underframe in the present invention；

Fig. 7 is the structural representation of lower activity template in the present invention；

Fig. 8 is the structural representation of locating ring in the present invention.

Specific embodiment

Refering to Fig. 1 and Fig. 2, a kind of coded lock, including the underframe 1 being connected on casing, the latch hook 2 being connected on case lid, Switching and is provided with the drain pan 4 of latch hook import 3, the upper lid 5 snapping onto on drain pan 4, is arranged on work above drain pan 4 on underframe 1 Moving plate 6, be arranged on activity template 6 and upper lid 5 between and for make activity template 6 reset back-moving spring 7, be arranged on lid 5 on and For promoting the encryption apparatus of activity template 6 compression reseting spring 7；Drain pan 4 is provided with the first deep-slotted chip breaker 8, and activity template 6 is fixed with Block 9, underframe 1 is fixed with the pin 10 for stopping block 9 rotation, and pin 10 is located in the first deep-slotted chip breaker 8；Work as activity When piece 6 is in reset position, block 9 is located at the outside of the first deep-slotted chip breaker 8；When encryption apparatus promotes activity template 6 compression reset bullet After spring 7, block 9 is located at directly over the first deep-slotted chip breaker 8；Described drain pan 4 is provided with and is matched with latch hook 2 and communicated with latch hook import 3 The second deep-slotted chip breaker 11.Also include being connected in the limiting plate 12 of drain pan 4 top；Described activity template is included above limiting plate 12 Lower activity template 13, be located at the upper activity template 14 of lower activity template 13 top；Lower activity template 13 is provided with limited block 15, on drain pan 4 It is provided with the stopper slot 16 for limiting limited block 15 position；Upper activity template 14 is provided with the pushing block for promoting lower activity template 13 17；Block 9 is connected on lower activity template 13.Described back-moving spring 7 has two, lower activity template 13 be provided with two respectively with two The push rod 15 that back-moving spring 7 is connected.

Refering to Fig. 2 to Fig. 5, described encryption apparatus includes three upper lid axles 18 being connected in lid 5 bottom surfaces, every upper lid axle The support bullet that 18 are arranged with password wheels 19 from top to bottom successively, cylindrical fixture block 20, lower end are connected with limiting plate 12 upper surface Spring 21；Upper activity template 14 is provided with three the first draw-in grooves 22 placing three fixture blocks 20 respectively, is all provided with each first draw-in groove 22 There is the first projection 23, each fixture block 20 is equipped with the groove 24 being matched with the first projection 23.Described upper lid 5 on be equipped with for The push rod 25 of activity template 14 position in restriction, upper activity template 14 is provided with the second draw-in groove 26 matching with push rod 25, password wheels 19 with It is provided with ball 27 between fixture block 20.

Refering to Fig. 2, Fig. 6 and Fig. 7, also include the lock core 28 being arranged between drain pan 4 and upper lid 5, the lower end of lock core 28 sets Have for block 9 being promoted to be pushed into the second projection 29 inside the first deep-slotted chip breaker 8.

Refering to Fig. 6, described drain pan 4 is provided with the gathering sill 44 of arc, is provided with and leading that underframe 1 is fixedly connected with gathering sill 44 To bar 45；Drain pan 4 is more stable when rotating.

Refering to 2, Fig. 6 and Fig. 8, switching on described drain pan 4 has fork 30, and apart from transit point, one end farther out is a to fork 30 End, fork 30 is b end apart from the nearer one end of transit point；Drain pan 4 is provided with makes a end of fork 30 be located in latch hook import 3 Protection spring 31, the b end of fork 30 is connected with protection spring 31.Also include being connected on underframe 1 and be located in drain pan 4 center Locating ring 32, locating ring 32 is provided with a pole 33 and No. two poles 34, and a pole 33 and No. two poles 34 are respectively positioned on bottom The top of shell 4, drain pan 4 is provided with and is matched with a pole 33 and No. two poles 34 and limiting No. one of drain pan 4 slewing area Locating piece 35 and No. two locating pieces 36.When latch hook 2 is separated with drain pan 4, the b end of a locating piece 35 and fork 30 is close to respectively Both sides in a pole 33.Also include the arc coaming plate 37 being connected on drain pan 4, in No. two poles 34, be provided with chute 38, sliding It is provided with slide block 39 in groove 38, be provided between the bottom of slide block 39 and chute 38 and make slide block 39 be adjacent to madial wall on arc coaming plate 37 On holddown spring 40；Shape coaming plate 37 described in arc is provided with the draw-in groove 41 and two corresponding to 39 two extreme positions of slide block respectively Number draw-in groove 42.

When upper lid 5 rotates, drain pan 4, limiting plate 12, lower activity template 13, upper activity template 14 rotate with upper lid 5.

Refering to Fig. 6, during use, latch hook 2 is inserted the latch hook import 3 on drain pan 4, a end of fork 30 is pushed open by latch hook 2, The rotation path of a pole 33 is removed at the b end of fork 30；Rotate clockwise lid 5, limiting plate 12 drain pan 4 concomitant rotation, from And latch hook 2 rotates in the second deep-slotted chip breaker 11, pin 10 moves on to d end from the c end of the first deep-slotted chip breaker 8；Refering to Fig. 2 and Fig. 4, rotate close Code wheel 19, makes password from being correctly changed into chaotic, fixture block 20 promotes upper activity template 14 simultaneously, and the pushing block 17 on upper activity template 14 promotes Lower activity template 13, so that the block 9 on lower activity template 13 is from the first deep-slotted chip breaker 8 side shifting just going up to the first deep-slotted chip breaker 8 Side, thus pin 10 blocks block 9, stops activity template 13 of staying from rotating counterclockwise.Thus chest is pinned by coded lock.

When opening chest, rotational password wheel 19 makes password correct, the groove 24 of password wheels 19 and the first of upper activity template 14 Projection 23 aligns, and back-moving spring 7 promotes lower activity template 13, and lower activity template 13 promotes the pushing block 17 on upper activity template 14, and first is convex Block 23 sticks in groove 24, moves on to the first deep-slotted chip breaker 8 with the block 9 on activity template 13 at present from the surface of the first deep-slotted chip breaker 8 Outside, then pin 10 is departing from the rotating path of block 9, rotation is covered 5, latch hook 2 removes the second deep-slotted chip breaker 11, thus by case Son is opened.

When customs officer opens coded lock with key, key is inserted and rotated lock core 28, thus the second projection 29 promotes Block 9, block 9 is moved on to the inner side of the first deep-slotted chip breaker 8, then pin 10 is departing from block 9 from the surface of the first deep-slotted chip breaker 8 Rotating path, rotation is covered 5, latch hook 2 removes the second deep-slotted chip breaker 11, thus chest is opened.

During change password, when password is correct, push rod 25 is alignd with the second draw-in groove 26, and push rod 25 is sticked into the second draw-in groove 26 Interior, prevent activity template 14 mobile, rotation password wheels 19 change into the numeral oneself wanted；Then push rod 25 and the second draw-in groove are made 26 disengagings, change of secret code completes.

Be connected with bottom using latch hook in the present invention, drain pan by rotation after, hang over latch hook together with, by adjust password Device fixes drain pan, thus pinning chest, compact conformation, and simple to operate；The internal structure that latch hook is not controlled with encryption apparatus It is connected, latch hook will not damage the internal structure of coded lock because of pulling force, improves service life.

The foregoing is only the specific embodiment of the present invention, but the technical characteristic of the present invention is not limited thereto, Ren Heben The technical staff in field in the field of the invention, all cover among the scope of the claims of the present invention by the change made or modification.

Claims

1. a kind of coded lock, is characterized in that：Including the underframe being connected on casing（1）, the latch hook being connected on case lid（2）, turn It is connected on underframe（1）Go up and be provided with latch hook import（3）Drain pan（4）, snap onto drain pan（4）On upper lid（5）, be arranged on drain pan （4）The activity template of top（6）, be arranged on activity template（6）With upper lid（5）Between and be used for making activity template（6）The reset bullet resetting Spring（7）, be arranged on lid（5）Go up and be used for promoting activity template（6）Compression reseting spring（7）Encryption apparatus；

Drain pan（4）It is provided with the first deep-slotted chip breaker（8）, activity template（6）On be fixed with block（9）, underframe（1）On be fixed with for hindering Gear block（9）The pin of rotation（10）, pin（10）It is located in the first deep-slotted chip breaker（8）Interior；Work as activity template（6）It is in reset position When, block（9）Positioned at the first deep-slotted chip breaker（8）Outside；When encryption apparatus promotes activity template（6）Compression reseting spring（7）Afterwards, keep off Block（9）Positioned at the first deep-slotted chip breaker（8）Surface；Described drain pan（4）It is provided with and latch hook（2）Match and with latch hook import（3）Phase The second logical deep-slotted chip breaker（11）；

Also include being connected in drain pan（4）The limiting plate of top（12）；Described activity template is included positioned at limiting plate（12）Under top Activity template（13）, be located at lower activity template（13）The upper activity template of top（14）；Lower activity template（13）It is provided with limited block（15）, bottom Shell（4）It is provided with for limiting limited block（15）The stopper slot of position（16）；Upper activity template（14）It is provided with for promoting lower work Moving plate（13）Pushing block（17）；Block（9）It is connected in lower activity template（13）On；

Described drain pan（4）Upper switching has fork（30）, fork（30）It is a end apart from transit point one end farther out, fork（30）Away from One end close to transit point is b end；Drain pan（4）It is provided with and make fork（30）A end be located at latch hook import（3）Interior protection bullet Spring（31）, fork（30）B end with protection spring（31）It is connected.

2. a kind of coded lock according to claim 1, is characterized in that：Described encryption apparatus includes three and is connected in lid （5）The upper lid axle of bottom surface（18）, every upper lid axle（18）It is arranged with password wheels from top to bottom successively（19）, cylindrical fixture block （20）, lower end and limiting plate（12）The support spring that upper surface is connected（21）；Upper activity template（14）It is provided with three to place respectively Three fixture blocks（20）The first draw-in groove（22）, each first draw-in groove（22）Inside it is equipped with the first projection（23）, each fixture block（20） On be equipped with and the first projection（23）The groove matching（24）.

3. a kind of coded lock according to claim 2, is characterized in that：Described upper lid（5）On be equipped with for limiting upper work Moving plate（14）The push rod of position（25）, upper activity template（14）It is provided with and push rod（25）The second draw-in groove matching（26）.

4. a kind of coded lock according to claim 1, is characterized in that：Also include being arranged on drain pan（4）With upper lid（5）Between Lock core（28）, lock core（28）Lower end be provided with for by block（9）It is pushed into the first deep-slotted chip breaker（8）Second projection of inner side （29）.

5. a kind of coded lock according to claim 1, is characterized in that：Described back-moving spring（7）There are two, lower activity template （13）Be provided with two respectively with two back-moving springs（7）Connected push rod（43）.

6. a kind of coded lock according to claim 1, is characterized in that：Also include being connected in underframe（1）Go up and be located in bottom Shell（4）The locating ring at center（32）, locating ring（32）It is provided with a pole（33）With No. two poles（34）, a pole（33） With No. two poles（34）It is respectively positioned on drain pan（4）Top, drain pan（4）It is provided with and a pole（33）With No. two poles（34）Phase Join and limiting drain pan（4）A number locating piece of slewing area（35）With No. two locating pieces（36）.

7. a kind of coded lock according to claim 6, is characterized in that：Work as latch hook（2）With drain pan（4）When separately, No. one fixed Position block（35）And fork（30）B end be close to a pole respectively（33）Both sides.

8. a kind of coded lock according to claim 6 or 7, is characterized in that：Also include being connected in drain pan（4）On arc enclose Plate（37）, No. two poles（34）Inside it is provided with chute（38）, chute（38）Inside it is provided with slide block（39）, slide block（39）With chute（38）'s Being provided between bottom makes slide block（39）It is adjacent in arc coaming plate（37）Holddown spring on upper madial wall（40）；Described arc coaming plate （37）It is provided with and correspond to slide block respectively（39）A number draw-in groove of two extreme positions（41）With No. two draw-in grooves（42）.