CN203097469U

CN203097469U - Screw type anti-theft lock

Info

Publication number: CN203097469U
Application number: CN 201320066444
Authority: CN
Inventors: 徐亚龙; 徐平
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-02-05
Filing date: 2013-02-05
Publication date: 2013-07-31
Anticipated expiration: 2023-02-05

Abstract

A screw type anti-theft lock comprises a lock cylinder (1), a lock body (2), a key (3) and a spring bolt (6). A screw groove (1.1) is formed in the cylindrical lock cylinder in the axial direction, an inserting section (3.1) of the key (3) is arranged to be a screw shape, and the screw-shaped inserting section is matched with the screw groove (1.1) in the lock cylinder (1). The screw type anti-theft lock has the obvious advantages of being capable of effectively preventing the screw type anti-theft lock from being picked in a short time, compact and simple in structure, stable and reliable in operation and convenient to install.

Description

Spiral theftproof lock

Technical field

The utility model belongs to the anti-theft lock structure technical field.

Background technology

Theftproof lock in the market can be divided into cylinder lock, blade lock, magnetic lock, IC card lock, Fingerprint Lock etc. according to the difference of lock core.Cylinder lock and magnetic lock are more common, all belong to cylinder lock as I-shaped lock, cross lock, computer lock etc., and magnetic lock was several years ago once popular, but reliability is understable in the use because of it, technical wait perfect.The mechanical anti-theft lock internal construction only limits to the variation of pellet shot from a slingshot at present, its structure and principle are basic identical, the lock core hole of this lock core structure is the straight hole state, adopt the picklock of present straight-bar type structure can one to disclose on earth, when technical opening, stir the purpose that pellet shot from a slingshot in the lock core only needs just can to reach for tens seconds unlatching by key, theftproof performance is poor.

Summary of the invention

The purpose of this utility model provide in order to overcome the defective of being prized at short notice easily that above-mentioned existing machinery theftproof lock exists just a kind of simple in structure, use stablely, can effectively prevent the spiral theftproof lock of being prized at short notice.

The purpose of this utility model is achieved by the following technical solution.

Spiral theftproof lock comprises lock core, lock body, key, dead bolt, and direction of axis line offers helicla flute in cylindrical lock core upper edge; The insertion section of key is set to helical form, and this helical form is inserted section and cooperated with helicla flute on the lock core.

The utility model offers the pellet shot from a slingshot hole on one's body respectively at lock core and lock, and pellet shot from a slingshot, spring are housed respectively in the pellet shot from a slingshot hole.

The utility model dead bolt is connected with the lock body by snap ring.

The utility model key is rigidly connected by insertion section and handle section and constitutes; Insertion section inboard at key is provided with the tooth mouth.

The utility model operating process is: when lock body pellet shot from a slingshot hole overlaps fully with lock core marble hole, lock body pellet shot from a slingshot hole inner spring is because of the elastic force effect, pellet shot from a slingshot in the lock body pellet shot from a slingshot hole is advanced in the lock core marble hole, being pushed the pellet shot from a slingshot that comes from the lock body between lock body and the lock core blocks, at this moment, lock is in locking states; After the spiral section with key screws in along the lock core helicla flute, pellet shot from a slingshot in the lock core teeth groove is by key jack-up, pellet shot from a slingshot in the lock core will push up again from the pellet shot from a slingshot that the lock body is depressed and go back, " occlusal surface " non-marble between lock body and the lock core is stopped, lock is opened thereby can waltz through key.

The beneficial effects of the utility model are: because key of the present utility model is a helical form, groove on the lock core also is a spiral fluted, no matter be flexible material or hard material in the picklock, all can't enter keyhole, can not stir pellet shot from a slingshot, can prevent effectively that theftproof lock from being prized at short notice.The utility model also has remarkable advantage simple in structure, reliable and stable, easy to use.

Further set forth the utility model content below in conjunction with drawings and Examples.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the lock core structure schematic diagram;

Fig. 3 is the Key structure schematic diagram.

The specific embodiment

See Fig. 1, Fig. 2, Fig. 3, spiral theftproof lock comprises lock core 1, lock body 2, key 3, dead bolt 6, and direction of axis line offers helicla flute 1.1 in cylindrical lock core upper edge; The insertion section 3.1 of key 3 is set to helical form, and this helical form is inserted section and is cooperated with helicla flute 1.1 on the lock core 1.On lock core 1 and lock body 2, offer pellet shot from a slingshot hole 1.2,2.1 respectively, pellet shot from a slingshot 4, spring 5 are housed respectively in pellet shot from a slingshot hole 1.2,2.1.Dead bolt 6 is connected with lock body 2 by snap ring 7.Key 3 is rigidly connected by insertion section 3.1 and handle section 3.2 and constitutes; Insertion section 3.1 inboards at key 3 are provided with tooth mouth 3.3.Pellet shot from a slingshot hole 2.1 on the utility model lock body 2 also is in spiral distribution, lock core 1 is a column structure, its external diameter with the internal diameter of lock body endoporus match, the length of lock core 1 is greater than the length in lock body hole 2.1, generally to grow about 4 ㎜, offer a circular ring slot 7 at lock core 1 with lock body 2 equal length places, the perpendicular translot that offers one 2～3 ㎜ is used to place dead bolt at lock core afterbody place, adopt snap ring 7 that lock core 1, dead bolt 6 are blocked then, make lock body, lock core 1, dead bolt 6 become an overall structure.The length of the utility model pellet shot from a slingshot 4 determines that according to the size of lock the diameter of pellet shot from a slingshot is 1.3～1.7 ㎜, and one group of pellet shot from a slingshot is two, is locking 2 li of bodies for one, and another is 1 li of lock core; Pellet shot from a slingshot length in the lock body equates all that usually the pellet shot from a slingshot length in the lock core is according to the concavo-convex difference of tooth punching in the key 3, and length is different.Pellet shot from a slingshot in the lock body will be reserved enough spaces and place spring less than the thickness of lock body; Pellet shot from a slingshot in the lock core is less than the diameter of lock core, and under the state that no key enters, having living space allows the pellet shot from a slingshot of locking 2 li of bodies enter, and blocks lock core 1.When lock body pellet shot from a slingshot hole 2.1 overlaps fully with lock core marble hole 1.2, lock body pellet shot from a slingshot hole 2.1 inner springs 5 advance the pellet shot from a slingshot in the lock body pellet shot from a slingshot hole 2.1 in the lock core marble hole 1.2 because of the elastic force effect, are pushed the pellet shot from a slingshot that comes from the lock body between lock body and the lock core and block, at this moment, lock is in locking states; Handle section 3.2 when key 3, make the spiral of key 3 insert section 3.1 behind lock core helicla flute 1.1 screw-ins, the tooth mouth 3.3 that inserts on the section cooperates with lock body pellet shot from a slingshot hole, pellet shot from a slingshot 4 in the lock core marble hole 1.2 is by key jack-up, pellet shot from a slingshot in the lock core will push up again from the pellet shot from a slingshot that the lock body is depressed and go back, " occlusal surface " non-marble between lock body and the lock core is stopped, lock is opened thereby can waltz through key.

Claims

1. spiral theftproof lock comprises lock core (1), lock body (2), key (3), dead bolt (6), it is characterized in that direction of axis line offers helicla flute (1.1) in cylindrical lock core upper edge; The insertion section (3.1) of key (3) is set to helical form, and this helical form is inserted section and is cooperated with helicla flute (1.1) on the lock core (1).

2. spiral theftproof lock according to claim 1 is characterized in that, offers pellet shot from a slingshot hole (1.2,2.1) respectively on lock core (1) and lock body (2), and pellet shot from a slingshot (4), spring (5) are housed respectively in pellet shot from a slingshot hole (1.2,2.1).

3. spiral theftproof lock according to claim 1 is characterized in that, dead bolt (6) is connected with lock body (2) by snap ring (7).

4. spiral theftproof lock according to claim 1 and 2 is characterized in that, key (3) is by inserting section (3.1) and handle section (3.2) formation that is rigidly connected; Insertion section (3.1) inboard at key (3) is provided with tooth mouth (3.3).