CN2625513Y

CN2625513Y - Lock

Info

Publication number: CN2625513Y
Application number: CN 03226550
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 lock which comprises a lock body, a lock core with a keyhole, a plurality of marble caves and a main marble, an attached marble and a spring which are arranged in each marble cave; an extended bolt is arranged at one end of at least one main marble that is far away from the attached marble; a range of the thrust point of the key pushing the main marble is formed between the extended bolt and the main marble; an extended cave is arranged at the corresponding position of the inner side of the lock body and the extended bolt wherein the extremity of the extended bolt is positioned in the interior of the extended cave. The utility model greatly decreases the thrust area of the marble and greatly reduces the possibility of technically opening with a foreign body on the condition that the main marble is rough enough. The utility model has simple structure, small volume and great security.

Description

Lock

Technical field: the utility model relates to lock, especially cylinder lock.

Background technology: all have certain clearance between the lockhole of lock and the pellet shot from a slingshot, the robber utilizes these gaps to adopt the method for technical unlocking, one by one pellet shot from a slingshot is shifted with foreign matter, at last lock is opened.In order to prevent technical unlocking, people have designed various locks, yet most lock all amasss big and cost height because of complex structure causes whole lock body, and can not effectively prevent technical unlocking.

The utility model content: the purpose of this utility model is exactly that a kind of simple in structure, volume is little, theftproof performance is good lock will be provided.

For reaching above-mentioned purpose, the utility model adopts following technical scheme: this lock, comprise core, a plurality of pellets shot from a slingshot cave in lock body, hole with lock and be arranged in the main pellet shot from a slingshot in each pellet shot from a slingshot cave, attached pellet shot from a slingshot, spring, at least one main pellet shot from a slingshot is provided with the prolongation bolt at the end away from attached pellet shot from a slingshot, prolongs to form between bolt and the main pellet shot from a slingshot to promote the differential of main pellet shot from a slingshot stress point as key; Lock body is inboard to be provided with the prolongation cave with prolonging the bolt corresponding position, and prolongation bolt end is in and prolongs in the cave.

Main pellet shot from a slingshot with prolong bolt with the axially vertical direction of lockhole on the cross section can be " T " font, " n " font, " m " font, " 7 " font, laterally " day " font and other shape.

Compared with prior art, owing to extend with main pellet shot from a slingshot on the main pellet shot from a slingshot and form differential prolongation bolt, and the end that prolongs bolt is in all the time to prolong in the cave and does not spin off, guaranteeing under the enough thick prerequisite of main pellet shot from a slingshot, reduce the stressed area of pellet shot from a slingshot greatly, greatly reduced the possibility of carrying out technical unlocking with foreign matter.The utility model is simple in structure, and volume is little, and security performance is good.

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

Fig. 1 is a structure sectional view of the present utility model.

Fig. 2 is the right view of Fig. 1.

Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 are the several of the band main pellet shot from a slingshot that prolongs bolt

Embodiment.

Fig. 9 is the structural representation with the matching used a kind of key of the utility model.

Figure 10 is the A-A view of Fig. 9.

The specific embodiment: as shown in Figure 1 and Figure 2: core 2 assemblies are in lock body 1; Be provided with spring 6, attached pellet shot from a slingshot 7 and main pellet shot from a slingshot 8 in a plurality of pellets shot from a slingshot cave 3, the lower end of main pellet shot from a slingshot 8 is to prolong bolt 9.Be provided with prolongation cave 4 with prolonging bolt 9 corresponding positions in the lock body 1, no matter how main pellet shot from a slingshot 8 moves, and prolongation bolt 9 ends are in all the time and prolong in the bolt cave 4.Among this embodiment, band prolong bolt 9 main pellet shot from a slingshot 8 structure as shown in Figure 3, main pellet shot from a slingshot 8 and to prolong bolt 9 are cylinders of coaxial one, the diameter that prolongs bolt 9 is littler than the diameter of main pellet shot from a slingshot 8, its longitudinal cross-section, promptly with the axially vertical direction of lockhole on the cross section be " T " font.During use, inject from lockhole 5 as Fig. 9, key shown in Figure 10, two rooted teeth flower bar 11 passes the arrival operating position from the space that each prolongs bolt 9 both sides, is the point of application with main pellet shot from a slingshot 8 with prolonging the differential of bolt 9 junctions, promoting each main pellet shot from a slingshot 8 is subjected to displacement, contact surface and lock body 1 between main pellet shot from a slingshot 8 and the attached pellet shot from a slingshot 7 are overlapped with contact surface between the core 2, thereby rotation lock core is opened lock.

Certainly, the main pellet shot from a slingshot of band prolongation bolt can adopt the structure of other form.As shown in Figure 4, the prolongation bolt of this embodiment is narrow relatively square column that the main pellet shot from a slingshot end by square column type extends out, and the longitudinal section is " T " font, and the two rooted teeth flower bar of key injects from the both sides of narrow square column.As shown in Figure 5, among this embodiment, prolonging bolt is two narrow pillars that are parallel to each other that extended out by main pellet shot from a slingshot end, forms the longitudinal cross-section of " n " font, and correspondingly, supporting key should have three rooted teeth flower bar.In addition, " m " font longitudinal section, horizontal stroke as shown in Figure 7 " day " font longitudinal section, structures such as " mouth " shaped sections as shown in Figure 8 also are feasible as shown in Figure 6 to prolong the bolt employing.

Claims

1, a kind of lock, comprise lock body (1), the core (2) of hole with lock (5), a plurality of pellets shot from a slingshot cave (3) and be arranged in the main pellet shot from a slingshot (8) in each pellet shot from a slingshot cave, attached pellet shot from a slingshot (7), spring (6), it is characterized in that: at least one main pellet shot from a slingshot (8) is provided with at the end away from attached pellet shot from a slingshot (7) and prolongs bolt (9), prolongs and forms differential (10) that promote the point of application of main pellet shot from a slingshot as key between bolt (9) and the main pellet shot from a slingshot (8); Lock body (1) is inboard to be provided with prolongation cave (4) with prolonging bolt (9) corresponding position, and prolongation bolt (9) end is in and prolongs in the cave (4).

2, lock according to claim 1 is characterized in that: described main pellet shot from a slingshot (8) with prolong bolt (9) with the axially vertical direction of lockhole on the cross section be " T " font.

3, lock according to claim 2 is characterized in that: described main pellet shot from a slingshot (8) and prolongation bolt (9) are the cylindrical of coaxial one, and the diameter that prolongs bolt (9) is littler than the diameter of main pellet shot from a slingshot (8).

4, lock according to claim 1 is characterized in that: described main pellet shot from a slingshot (8) with prolong bolt (9) with the axially vertical direction of lockhole on the cross section be " n " font.

5, lock according to claim 1 is characterized in that: described main pellet shot from a slingshot (8) with prolong bolt (9) with the axially vertical direction of lockhole on the cross section be " m " font.

6, lock according to claim 1 is characterized in that: described main pellet shot from a slingshot (8) with prolong bolt (9) with the axially vertical direction of lockhole on the cross section be " 7 " font.

7, lock according to claim 1 is characterized in that: described main pellet shot from a slingshot (8) with prolong bolt (9) with the axially vertical direction of lockhole on the cross section be " mouth " font.

8, lock according to claim 1 is characterized in that: described main pellet shot from a slingshot (8) with prolong bolt (9) with the axially vertical direction of lockhole on the cross section be laterally " day " font.