CN2625508Y

CN2625508Y - Marble

Info

Publication number: CN2625508Y
Application number: CN 03226549
Authority: CN
Inventors: 张振海
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-05-29
Filing date: 2003-05-29
Publication date: 2004-07-14
Anticipated expiration: 2013-05-29

Abstract

The utility model discloses a billiard of a lock, wherein the end of a main billiard is provided with an extending plug, a stage difference which works as a force application fulcrum of a key is arranged between the extending plug and the main billiard. The longitudinal cross-section of the billiard takes the shape of a T-shaped, a n-shaped, an m-shaped, a 7- shaped, a 'RI' (like a Chinese character) or a square shape, etc. On the base of that the main billiard which is crassitude enough can be ensured, the utility model is additionally provided with the extending plug. No matter how the billiards moves, the end of the extending plug is still positioned inside an extending cave of the lock body and the key tooth can only use the stage different between the extending plug and the main billiard as a force application point to push the billiard, which reduces largely the stressing area of the billiard, reduces the possibility that the eyewinker is inserted into the lock hole and the lock being technically unlocked, thus improving the security of the locks.

Description

Pellet shot from a slingshot

Technical field: the utility model relates to the pellet shot from a slingshot of lock.

Background technology: in order to prevent improper rotation between core and the lock body, pellet shot from a slingshot must guarantee enough thick.Pellet shot from a slingshot is big more, and pellet shot from a slingshot is subjected to the area of external force effect just big more, carries out technical unlocking with regard to easy more the insertion by foreign matter, thereby reduces the safety of lock.

The utility model content: the purpose of this utility model just provides a kind of existing necessarily thick, can reduce the pellet shot from a slingshot of lifting surface area again.

For reaching above-mentioned purpose, the utility model adopts following technical scheme: this pellet shot from a slingshot, be provided with the prolongation bolt at the end of main pellet shot from a slingshot, and prolong differential as key application of force fulcrum of formation between bolt and the main pellet shot from a slingshot.

The longitudinal cross-section of described main pellet shot from a slingshot and prolongation bolt can be different shapes such as " T " font, " n " font, " m " font, " 7 " font, horizontal stroke " day " font, " mouth " font.

Special-shaped pellet shot from a slingshot of the present utility model is guaranteeing that main pellet shot from a slingshot has on the certain thick basis, has set up the prolongation bolt.No matter how pellet shot from a slingshot moves, the end that prolongs bolt is in the interior prolongation cave of lock body all the time, the tartar of key can only be to prolong differential as point of application promotion pellet shot from a slingshot between bolt and the main pellet shot from a slingshot, reduced the stressed area of pellet shot from a slingshot greatly, reduce foreign matter and inserted the possibility of carrying out technical unlocking in the lockhole, improved the safety of lock.

Description of drawings: the utility model is further described specifically below in conjunction with accompanying drawing.

Fig. 1～Fig. 7 is the structural representation of several embodiment of pellet shot from a slingshot of the present utility model.

Fig. 8 is to use the structural representation of the lock of a kind of pellet shot from a slingshot of the present utility model.

The specific embodiment: as shown in Figure 1, pellet shot from a slingshot is made up of prolongation bolt 2 two parts of main pellet shot from a slingshot 1 and main pellet shot from a slingshot end, and main pellet shot from a slingshot 1 and prolongation bolt 2 can be square bodies, also can cylinder or other shape.The longitudinal cross-section of pellet shot from a slingshot is " T " font, forms differential as key application of force fulcrum, and key inserts with the gap that prolongs bolt 2 left and right sides, moves that 5 locks of rotation lock core open thereby promote main pellet shot from a slingshot 1.Since pellet shot from a slingshot about two places stressed, even main pellet shot from a slingshot 1 with prolong differential very small between the bolt 2, also can guarantee by key upwards promotion smoothly.

As shown in Figure 2, main pellet shot from a slingshot 1 and prolongation bolt 2 are cylinders of two coaxial one, and the diameter that prolongs bolt 2 is littler than the diameter of main pellet shot from a slingshot 1.No matter how pellet shot from a slingshot rotates, and the longitudinal section on the direction vertical with the lockhole axle is " T " font all the time.

Pellet shot from a slingshot can also adopt other shape; " n " font shown in Fig. 3,4,5,6,7, " m " font, " L " font, " day " font, " mouth " font etc.; as long as have the terminal prolongation bolt 2 that is in all the time in the core prolongation cave 3; and at main pellet shot from a slingshot 1 and prolong and to form differential as key application of force fulcrum between the bolt 2, all should belong to protection domain of the present utility model.

As shown in Figure 8, the pellet shot from a slingshot of " T " font is installed in the tapered end, and wherein, main pellet shot from a slingshot 1 is in the pellet shot from a slingshot cave 4, prolongs bolt 2 and is in the prolongation cave 3.Key 6 injects from prolonging bolt 2 left and right sides, be that application of force fulcrum promotion pellet shot from a slingshot moves to prolong differential between bolt 2 and the main pellet shot from a slingshot 1, thereby 5 locks of rotation lock core is opened.Owing to prolong the setting of bolt 2, increased the difficulty that foreign matter is stirred pellet shot from a slingshot, improved the theftproof performance of lock.

Claims

1, a kind of pellet shot from a slingshot is characterized in that: be provided with at the end of main pellet shot from a slingshot (1) and prolong bolt (2), prolong differential as key application of force fulcrum of formation between bolt (2) and the main pellet shot from a slingshot (1).

2, pellet shot from a slingshot according to claim 1 is characterized in that: the longitudinal cross-section of described main pellet shot from a slingshot (1) and prolongation bolt (2) is " T " font.

3, pellet shot from a slingshot according to claim 2 is characterized in that: described main pellet shot from a slingshot (1) and prolongation bolt (2) are the cylindrical of coaxial one, and the diameter that prolongs bolt (2) is littler than the diameter of main pellet shot from a slingshot (1).

4, pellet shot from a slingshot according to claim 1 is characterized in that: the longitudinal cross-section of described main pellet shot from a slingshot (1) and prolongation bolt (2) is " n " font.

5, pellet shot from a slingshot according to claim 1 is characterized in that: the longitudinal cross-section of described main pellet shot from a slingshot (1) and prolongation bolt (2) is " m " font.

6, pellet shot from a slingshot according to claim 1 is characterized in that: the longitudinal cross-section of described main pellet shot from a slingshot (1) and prolongation bolt (2) is " 7 " font.

7, pellet shot from a slingshot according to claim 1 is characterized in that: the longitudinal cross-section of described main pellet shot from a slingshot (1) and prolongation bolt (2) is laterally " day " font.

8, special-shaped pellet shot from a slingshot according to claim 1 is characterized in that: the longitudinal cross-section of described main pellet shot from a slingshot (1) and prolongation bolt (2) is " mouth " font.