CN2747327Y

CN2747327Y - Sectional theft-proof lock cylinder

Info

Publication number: CN2747327Y
Application number: CN 200420105568
Authority: CN
Inventors: 胡小波
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-08
Filing date: 2004-12-08
Publication date: 2005-12-21
Anticipated expiration: 2014-12-08

Abstract

The utility model discloses a lock cylinder of the columnar bullet lock, comprising a lock sheath, a columnar lock cylinder arranged in the lock sheath, a lock cover at the front end of the lock cylinder and sheathed with the lock cover, a shifting fork connected with the back end of the lock cylinder, lock bead assembly arranged in a plurality of matched bullet holes of the lock cylinder and the lock sheath, wherein, the lock cylinder is composed of at least two sections of lock cylinders which are arranged in the lock sheath on the same shaft forward and backward and can relatively rotate, and hollow sections are arranged between each section of the lock cylinder. The lock comprising this lock cylinder can prevent effectively the lock cylinder from rotating abnormally and improves the anti-theft performance.

Description

The segmented anti-theft lock

Technical field

The utility model relates to a kind of lockset, especially relates to a kind of lock core of cylinder lock.

Background technology

Lock core is the control assembly of lockset, and in order to improve the anti-stealing safety performance of lockset, locking industry and relevant researcher manage to improve lock core intensity, secrecy and anti-group, anti-drilling performance invariably both at home and abroad.Existing lockset has mostly adopted special-shaped pellet shot from a slingshot, has arranged pellet shot from a slingshot more, " S " type key and install the performance that anti-drill pin or anti-drilling sheet or the like way is improved lock cylinder additional, but, still there are some defectives that are difficult to avoid in these locksets, main cause is that they mainly are made of lock core and lock tube two parts, the pellet shot from a slingshot hole that lock core and lock tube are provided with in correspondence with each other and mate, Built-in lock pearl assembly, pellet shot from a slingshot coincide and promptly forms a shear line in key tooth flower and lock core, this moment, available key drove the lock core rotation, and link gears such as lock core drive shift fork are opened lock.The cylinder lock of this lock core structure can be opened lockset with the technical unlocking method easily, by some instruments as oscillator, master key or plectrum, make pellet shot from a slingshot be in suitable displacement, can take advantage of other's power with regard to the power rotational lock core lock to be opened, as seen the theftproof performance of these locksets is relatively poor.Therefore, how to eliminate the improper rotation of lock core, becoming the raising theftproof performance must solve and still unsolved technical problem.

Summary of the invention

The purpose of this utility model is to overcome the shortcoming of prior art and a kind of lock core that can effectively prevent improper rotation is provided, and utilizes the lockset of this lock core manufacturing to have very high theftproof.

The purpose of this utility model is achieved in that

A kind of segmented anti-theft lock, comprise lock tube, be installed on cylinder lock core in the lock tube, be positioned at the lock core front end and be fixed on locking closure on the lock tube, be connected the lock core rear end shift fork, be loaded on the lock pearl assembly in lock core and several pellet shot from a slingshot holes that are complementary of lock tube, wherein lock core is made of the assembling lock core more than at least two sections or two sections, is coaxially installed in the lock tube before and after them also can relatively rotate;

Thereby, between each section lock core, also be provided with hollow section in order to prevent to send in the keyhole of back segment lock core and back down lock pearl assembly rotational lock core better with other flexible material;

In order to strengthen the anti-drilling performance of lock core, between the front end face of locking closure and lock tube, also be provided with the hole anti-drilling board of band key.

The utility model has following advantage than prior art:

When using improper instrument picking lock, pellet shot from a slingshot that must be in making lock core marble hole bullet simultaneously is high during to lock core marble outer end of hole sustained height, and allow lock core rotate, because the utility model is divided at least two sections with original lock core, bullet is high during to lock core marble outer end of hole sustained height simultaneously when pellet shot from a slingshot in the lock core marble hole occurs with instrument hook lock core, since outside firmly left or turn right and movingly can only drive the leading portion lock core and rotate with respect to the back segment lock core, the back segment lock core can be locked with lock tube immediately, can not follow the leading portion lock core to rotate; This moment the relatively rotating and cause the keyhole of front and rear sections to misplace of front and rear sections lock core, the hook lock instrument can't not insert the back segment lock core under the situation of return at the lock core leading portion, the leading portion return again can be locked mutually with lock tube; As filling up leading portion with flexible material, though the lock core keyhole return, also can be because of the leading portion lock core hole is filled, the hook lock instrument can't insert the back segment lock core equally, therefore can't unblank; To be set to hollow shape between every section lock core simultaneously, even soft materials such as employing cloth fill up lock core, the leading portion lock core rotates, and cloth can only dally in hollow section, and the back segment lock core can not rotate equally, also can't unblank.The utility model has solved the improper rotation of eliminating lock core dexterously, and it is manufactured lockset, has improved the theftproof performance of lockset greatly.

Description of drawings

Fig. 1 is that master of the present utility model looks sectional view;

Fig. 2 is that A-A of the present utility model is to sectional view;

Fig. 3 is that B of the present utility model is to view;

The specific embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail, but the utility model is not limited only to these technical schemes.

With reference to Fig. 1, a kind of segmented anti-theft lock, comprise lock tube 1, lock core 2, locking closure 3, with shift fork 4, wherein lock core 2 is that leading portion lock core 2-a and back segment lock core 2-b by cylindrical shape constituted, be installed in the lock tube 1 before and after them and also can relatively rotate, wherein, leading portion lock core 2-a axis is provided with pre-and post perforative keyhole 7, on the axis of back segment lock core 2-b, also be provided with pre-and post perforative keyhole 8, keyhole 7 and keyhole 8 are connected, locking closure 3 is fixed in the front end of lock tube 1 and corresponding with leading portion lock core 2-a, the circular hole 9 that is provided with on the locking closure 3 is connected and fixed by the rear end of connector 12 with back segment lock core 2-b with keyhole 7 coaxial communication of leading portion lock core 2-a, shift fork 4; The pellet shot from a slingshot hole 5 that leading portion lock core 2-a and back segment lock core 2-b are provided with a plurality of and axis normal and run through, the vertical pellet shot from a slingshot hole of running through 6 is complementary on these pellet shot from a slingshot holes 5 and the lock tube 1, lock pearl assembly 10 is installed in pellet shot from a slingshot hole 5 and 6, between leading portion lock core 2-a and back segment lock core 2-b, also be provided with a hollow section 11, between leading portion lock core 2-a and locking closure 3, also be provided with the anti-drilling board 13 of band keyhole.

Claims

1, a kind of segmented anti-theft lock, comprise lock tube, be installed on cylinder lock core in the lock tube, be positioned at the lock core front end and be fixed on locking closure on the lock tube, be connected the lock core rear end shift fork, be loaded on the lock pearl assembly in lock core and several pellet shot from a slingshot holes that are complementary of lock tube, it is characterized in that lock core is made of the assembling lock core more than at least two sections, their front and back are coaxially installed in the lock tube and can relatively rotate.

2, segmented anti-theft lock according to claim 1 is characterized in that being provided with hollow section between each section lock core.

3, segmented anti-theft lock according to claim 1 and 2 is characterized in that also being provided with the anti-drilling board of being with keyhole between the front end face of locking closure and lock tube.