CN101078310B

CN101078310B - Rebound theft-proof lock

Info

Publication number: CN101078310B
Application number: CN200710023292A
Authority: CN
Inventors: 吴增良
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-15
Filing date: 2007-06-15
Publication date: 2010-05-19
Anticipated expiration: 2027-06-15
Also published as: CN101078310A

Abstract

The invention discloses a rebounding anti-theft lock, which is that steel pipe is mated on the outer circle of lock head of mechanical marble lock; lock head is fixed on the fixing plate by steel pipe and bolt; one end of transmission bar between lock core and lock tongue is fabricated into cylinder with the same section of key embryo and inserts into the key hole in sliding fit; spring mated on the transmission bar pushes the transmission bar insert into the key hole so as to block off most marbles; thief can not use special tools to insert into the key hole so as to unlock the lock and anti-theft effect is good. If key is broken off in the lock core, residual key is used to unlock the lock still. Broken key head can be ejected by the transmission bar automatically. It is convenient and feasible.

Description

RRebound theft-proof lock

Technical field

The present invention relates to a kind of lock, be specifically related to mechanical cylinder lock with rebound function.

Background technology

The mechanical cylinder lock that uses drops in the lock core if key is disconnected when switch lock at present, just is difficult to take out, and can only ask the professional to help, and is very inconvenient.The pellet shot from a slingshot of mechanical cylinder lock exposes in lockhole in addition, and the robber puts in lockhole with special-purpose unlocking tool, just is easy to lock is opened, and anti-theft feature is poor.

Summary of the invention

The invention provides a kind of RRebound theft-proof lock, it is steel pipe of suit on the tapered end external cylindrical surface, fix by steel pipe and fixed head, be connected with drive link between lock core and the dead bolt, drive link one end is made the cylinder with the identical section of key embryo, and sliding fit is inserted in the keyhole of lock core, and the other end is made the rectangular column that is complementary with dead bolt hole, the middle part makes the cylinder of band boss, and helical spring is sleeved on the cylinder of drive link.

The present invention realizes with following technical scheme: a kind of RRebound theft-proof lock, comprise tapered end, the lock core that is installed in the tapered end hole is fixed with Spring Card, be installed in plurality of rows pellet shot from a slingshot, pellet shot from a slingshot and marble spring between lock core and the tapered end, the fixing fixed head of tapered end is characterized in that: suit tubular steel pipe on the face of cylinder of tapered end, and the boss of tapered end end blocks an end of steel pipe, the other end of steel pipe is close to the end face of fixed head, and two screws are fixed tapered end, steel pipe and fixed head; The stage casing of drive link is the cylinder of band boss, make the cylinder identical with the end that lock core connects with the key embryo shape, this cylinder sliding fit is inserted in the keyhole, the other end of drive link is made into the rectangular column that is complementary with square hole of lock tongue, and the hole that this rectangular column passes on the fixed head is inserted in the hole of dead bolt; Helical spring one end is sleeved on the face of cylinder of phoresying the bar middle part, and the other end is close to the inner face of fixed head.Good effect of the present invention is:

1, when key did not insert in the keyhole, drive link entered in the keyhole under the effect of spring, occupied the inner chamber of most of keyhole, and this moment, unlocking tool just can't enter the whole of keyhole, and skilled unlocking just is difficult to realize, improves the anti-theft feature of lockset.

If 2 keys break when falling lock core,, still can open lockset as long as remaining key is inserted lock core.When pulling up key, the key bit that falls that breaks can be ejected automatically by drive link, and is convenient feasible.

Description of drawings

Below in conjunction with drawings and Examples the present invention is described in further detail.

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

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

Among the figure: 1, fixed head, 2, drive link, 3, screw, 4, spring, 5, steel pipe, 6, Spring Card, 7, marble spring, 8, pellet shot from a slingshot, 9, pellet shot from a slingshot, 10, lock core, 11, tapered end, 12, keyhole.

The specific embodiment

As Fig. 1,2, shown in, a kind of RRebound theft-proof lock, comprise tapered end 11, the lock core 10 usefulness Spring Cards 6 that are installed in tapered end 11 holes are fixing, are installed in plurality of rows pellet shot from a slingshot 8, pellet shot from a slingshot 9 and marble spring 7 between lock core 10 and the tapered end 11, fixedly the fixed head 1 of tapered end 11, suit tubular steel pipe 5 on the face of cylinder of tapered end 11, the boss of tapered end 11 ends blocks an end of steel pipe 5, and the other end of steel pipe 5 is close to the end face of fixed head 1, and two screws 3 are fixing with tapered end 11, steel pipe 5 and fixed head 1; The stage casing of drive link 2 is the cylinder of band boss, make the cylinder identical with the end that lock core connects with the key embryo shape, this cylinder sliding fit is inserted in the keyhole 12, the other end of drive link 5 is made into the rectangular column that is complementary with square hole of lock tongue, and the hole that this rectangular column passes on the fixed head 1 is inserted in the hole of dead bolt; Helical spring 4 one ends are sleeved on the face of cylinder of phoresying bar 2 middle parts, and the other end is close to the inner face of fixed head 1.

As shown in Figure 1: drive link 2 enters under the promotion of spring 4 in the keyhole 12 of lock core 10, blocks most of pellet shot from a slingshot 9, and the robber can't insert keyhole with special tool and open lockset, has improved the theftproof performance of lockset, safety and reliability.

As shown in Figure 1, fall in the keyhole 12 if key is disconnected, still can open lockset as long as remaining key is inserted lock core, when pulling up key, the key that falls that breaks can be ejected automatically by drive link 2, and is convenient feasible.

Claims

1. RRebound theft-proof lock, comprise tapered end (11), lock core (10), fixedly tapered end (11) fixed head (1), be installed in plurality of rows first pellet shot from a slingshot (8), second pellet shot from a slingshot (9) and marble spring (7) between lock core (10) and the tapered end (11), wherein, lock core (10) is installed in tapered end (11) hole, and is fixing with Spring Card (6); It is characterized in that: suit tubular steel pipe (5) on the face of cylinder of tapered end (11), the boss of tapered end (11) end blocks an end of steel pipe (5), the other end of steel pipe (5) is close to the end face of fixed head (1), and two screws (3) are fixing with tapered end (11), steel pipe (5) and fixed head (1); The stage casing of drive link (2) is the cylinder of band boss, drive link (2) is made into the cylinder identical with the key embryo shape with the end that lock core connects, this cylinder sliding fit is inserted in the keyhole (12), the other end of drive link (2) is made into the rectangular column that is complementary with square hole of lock tongue, and the hole that this rectangular column passes on the fixed head (1) is inserted in the hole of dead bolt; Helical spring (4) one ends are sleeved on the face of cylinder at drive link (2) middle part, and the other end is close to the inner face of fixed head (1).