CN201065695Y

CN201065695Y - Mute automatic anti-theft lock

Info

Publication number: CN201065695Y
Application number: CNU200720109845XU
Authority: CN
Inventors: 龚建安
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-05-25
Filing date: 2007-05-25
Publication date: 2008-05-28
Anticipated expiration: 2017-05-25

Abstract

The utility model discloses a mute automatic anti-theft lock, which comprises a case of lock (1), a primary bolt (2), a trigger device, a locking device and an unlocking device; wherein, a promoting spring (12) is arranged between the primary bolt (2) and the case of lock (1); the trigger device comprises a protrudent tongue (6), a reset spring (14), a positioning block (16), a latch hook (5), a latch hook torsion spring (13) and a round pin (15); the positioning block (16) is fixed on the primary bolt (2); the reset spring (14) is sleeved on the protrudent tongue (6); the protrudent tongue (6) with the reset spring (14) is arranged on the positioning block (16); the latch hook (5) is arranged on the case of lock (1) through the hinge shaft (26) and the torsion spring (13); the latch hook (5) is matched with the round pin (15) and corresponded with the protrudent tongue (6). The utility model has the advantages of resolving the problems of complex structure, inferior prize-proof performance and loud noise; more advantages of simple and reasonable structure, flexible and convenient use, good prize-proof performance, and low noise.

Description

Quiet Automatic anti-theft lock

Technical field

The utility model relates to a kind of lockset, the self-locking squelch anti-stealing lock of particularly a kind of energy.

Background technology

Lockset is one of important accessory of security door, and the quality of lockset performance is directly connected to the safety and the functional performance of security door.At present, the security door lockset that uses on the market is of a great variety, characteristic is different, and model is also ever-changing, and its basic structure is basic identical, generally all include lock body, lock core, dead bolt, lock core is the main means that the dead bolt on the control lock body stretches out (locking) and withdrawal (unblanking); Automatically lockset then because do not need manual operation when locking, makes it to have reduced the troublesome operation when locking just initiatively locking at closing time, and is extremely easy to use, thereby is subjected to consumers in general's welcome after putting on market deeply always.But also there is its weak point in such lockset: the one, and the product structure complexity, fault is many, application life is short; The 2nd, the pick-proof performance is undesirable; The 3rd, after spy tongue and the doorframe collision, fragile doorframe body; The 4th, noise is big when laying the key under the door.For this reason, many manufacturers and knowledgeable people have carried out research repeatedly, but do not have ideal method to solve the problems referred to above so far as yet.

Summary of the invention

For overcoming the above-mentioned disadvantage that existing automatic antitheft is latched in, the purpose of this utility model provides a kind of simple and reasonable, use is light flexibly, the pick-proof performance is good, noise is little quiet Automatic anti-theft lock.

The technical scheme that its technical problem that solves the utility model adopts, it comprises lock body, main dead bolt, flip flop equipment, locking device and unlocking apparatus, main dead bolt is movably arranged on the lock body, between main dead bolt and lock body, be provided with the promotion spring, described flip flop equipment comprises the spy tongue, return spring, locating piece, latch hook, the latch hook torsion spring, pin, locating piece is fixed on the main dead bolt, be arranged on the locating piece behind the return spring on the rear portion pushing rod sleeve of spy tongue, latch hook is arranged on the jointed shaft, the chute that jointed shaft passes on the main dead bolt is fixed on the lock body, jointed shaft is provided with torsion spring, the gib head of latch hook cooperates with pin on being fixed on main dead bolt, and the afterbody of latch hook is corresponding with the rear portion push rod of visiting tongue.

Described locking device comprises hook tongue, hook plug, locating piece, pulls out key, locating piece is fixed on the main dead bolt, the rear link of hook plug is passed locating piece and is movably hinged with an end that pulls out key, pulling out key is hinged on the main dead bolt and on its hinge and is provided with torsion spring, hook tongue symmetry is hinged on the main dead bolt of hook plug both sides, and is provided with hook tongue torsion spring on its hinge.

Described unlocking apparatus comprises lock core, the tooth of unblanking, and the tooth of unblanking is arranged on the main dead bolt, and the lock core tooth on unblank tooth and the lock core is complementary, and is provided with the stage clip that presses the tooth of unblanking on main dead bolt.

Described hook tongue is provided with briar tooth, is provided with the briar tooth hole with the corresponding lock body of briar tooth.

Described lock body is provided with and pulls out the corresponding keyhole that pulls out of the key other end.

Described main dead bolt is provided with quiet contact head.

After adopting said structure, following advantage is arranged: the one, because ejecting the back with main dead bolt, the hook tongue launches, form barb greater than the doorframe dead bolt hole, therefore can increase the difficulty that security door is pried open greatly; The 2nd, visit tongue and adopt wear-resistant plastic, therefore can protect doorframe to avoid visiting the damage of tongue preferably; The 3rd, owing on main dead bolt, increase the quiet contact head made from wear-resistant plastic, therefore can reduce greatly and visit the noise that produces when tongue and quiet contact head and doorframe edge joint touch; The 4th, reduced the middle drive disk assembly of part, structure is simpler, reduces the probability that fault produces, long service life.

Description of drawings

Structural representation when Fig. 1 unblanks for the utility model.

Structural representation when Fig. 2 locks for the utility model.

The specific embodiment

Illustrated in figures 1 and 2, specific embodiments for the quiet Automatic anti-theft lock of the utility model, it comprises lock body 1, main dead bolt 2, flip flop equipment, locking device and unlocking apparatus, main dead bolt 2 is provided with quiet contact head 11, main dead bolt 2 is movably arranged on the lock body 1 by chute on it 19 and the pin that is fixed on the lock body 1, between main dead bolt 2 and lock body 1, be provided with and promote spring 12, described flip flop equipment comprises visits tongue 6, return spring 14, locating piece 16, latch hook 5, latch hook torsion spring 13, pin 15, locating piece 16 is fixed on the main dead bolt 2, be arranged on the locating piece 16 behind the return spring 14 on the rear portion pushing rod sleeve of spy tongue 6, latch hook 5 is arranged on the jointed shaft 26, the chute 17 that jointed shaft 26 passes on the main dead bolt 2 is fixed on the lock body 1, jointed shaft 26 is provided with torsion spring 13, the gib head of latch hook 5 cooperates with pin 15 on being fixed on main dead bolt 2, and the afterbody of latch hook 5 is corresponding with the rear portion push rod of visiting tongue 6.

Described locking device comprises hook tongue 7, hook plug 8, locating piece 21, pulls out key 9, locating piece 21 is fixed on the main dead bolt 2, the rear link of hook plug 8 is passed locating piece 21 and is movably hinged with an end that pulls out key 9, pulling out key 9 is hinged on and is provided with torsion spring 20 on the main dead bolt 2 and on its hinge, hook tongue 7 symmetries are hinged on the main dead bolt 2 of hook plug 8 both sides, and are provided with hook tongue torsion spring 22 on its hinge.Described hook tongue 7 is provided with briar tooth 23, is provided with briar tooth hole 24 with briar tooth 23 corresponding lock bodies 1.Described lock body 1 is provided with and pulls out the corresponding keyhole 25 that pulls out of key 9 other ends.

Described unlocking apparatus comprises lock core 10, the tooth 4 of unblanking, and the tooth 4 of unblanking is movably arranged on the main dead bolt 2 by skewed slot on it and bearing pin, and the lock core tooth 3 on unblank tooth 4 and the lock core 10 is complementary, and is provided with the stage clip 18 that presses the tooth 4 of unblanking on main dead bolt 2.

When the utility model is locked, visit and inwardly to shrink after tongue 6 touches the elastic force that overcomes return spring 14 behind the doorframe, visit the afterbody of the rear portion push rod roof pressure latch hook 5 of tongue 6, latch hook 5 rotates around jointed shaft 26, the gib head of latch hook 5 is broken off relations with the pin 15 that is fixed on the main dead bolt 2, and main dead bolt 2 ejects from the dead bolt hole of lock body 1 rapidly under the promotion that promotes spring 12 and locks; When main dead bolt 2 ejects, hook tongue 7 is also ejected simultaneously, hook tongue 7 outwards stretches under the effect of hook tongue torsion spring 22, briar tooth 23 is inserted in the briar tooth hole 24 of lock body 1, pull out key 9 next end of the effect of torsion spring 20 promote hook plug 8 up motion clog hook tongue 7, the other end that pulls out key 9 is inserted into pulling out in the keyhole 25 of lock body 1, and hook tongue 7 forms the barb greater than the doorframe lockhole in the lockhole of doorframe, play the pick-proof effect.Thereby finish the function of locking.

When the utility model is unblanked, rotational lock core 10 or indoor handle, the lock core tooth 3 on the lock core 10 drives the tooth 4 of unblanking and moves linearly, and the tooth 4 of unblanking drives main dead bolt 2 retractions, gets back in the lock body 1 until main dead bolt 2; In main dead bolt 2 retraction process, pulling out key 9 is inserted into an end that pulls out keyhole 25 and contacts with lock body 1, make and pull out key 9 and produce and reverse, and drive hook plug 8 retractions and remove spacing to hook tongue 7, the briar tooth 23 of hook tongue 7 time contacts with lock body 1 too at retraction, hook tongue 7 returns is drawn close mutually withdraw from the doorframe lockhole to be withdrawn in the lock body 1; Meanwhile, latch hook 5 hooks the pin 15 on the main dead bolt 2 again in main dead bolt 2 retraction process, thereby finishes the function of unblanking.

In addition to the implementation, the utility model can also have other embodiment.Every employing is equal to the technical scheme of replacement or equivalent transformation formation, all belongs to the protection domain of the utility model requirement.

Claims

1. quiet Automatic anti-theft lock, comprise lock body (1), main dead bolt (2), flip flop equipment, locking device and unlocking apparatus, main dead bolt (2) is movably arranged on the lock body (1), between main dead bolt (2) and lock body (1), be provided with and promote spring (12), it is characterized in that: described flip flop equipment comprises visits tongue (6), return spring (14), locating piece (16), latch hook (5), latch hook torsion spring (13), pin (15), locating piece (16) is fixed on the main dead bolt (2), be arranged on the locating piece (16) behind the return spring (14) on the rear portion pushing rod sleeve of spy tongue (6), latch hook (5) is arranged on the jointed shaft (26), the chute (17) that jointed shaft (26) passes on the main dead bolt (2) is fixed on the lock body (1), jointed shaft (26) is provided with torsion spring (13), the gib head of latch hook (5) cooperates with pin (15) on being fixed on main dead bolt (2), and the afterbody of latch hook (5) is corresponding with the rear portion push rod of visiting tongue (6).

2. quiet Automatic anti-theft lock according to claim 1, it is characterized in that: described locking device comprises hook tongue (7), hook plug (8), locating piece (21), pulls out key (9), locating piece (21) is fixed on the main dead bolt (2), the rear link of hook plug (8) is passed locating piece (21) and is movably hinged with an end that pulls out key (9), pulling out key (9) is hinged on main dead bolt (2) goes up and be provided with torsion spring (20) on its hinge, hook tongue (7) symmetry is hinged on the main dead bolt (2) of hook plug (8) both sides, and is provided with hook tongue torsion spring (22) on its hinge.

3. quiet Automatic anti-theft lock according to claim 1 and 2, it is characterized in that: described unlocking apparatus comprises lock core (10), the tooth of unblanking (4), the tooth (4) of unblanking is arranged on the main dead bolt (2), the lock core tooth (3) of unblanking on tooth (4) and the lock core (10) is complementary, and is provided with the stage clip (18) that presses the tooth of unblanking (4) on main dead bolt (2).

4. quiet Automatic anti-theft lock according to claim 3 is characterized in that: described hook tongue (7) is provided with briar tooth (23), is provided with briar tooth hole (24) with the corresponding lock body of briar tooth (23) (1).

5. quiet Automatic anti-theft lock according to claim 4 is characterized in that: described lock body (1) is provided with and pulls out the corresponding keyhole (25) that pulls out of key (9) other end.

6. quiet Automatic anti-theft lock according to claim 5 is characterized in that: described main dead bolt (2) is provided with quiet contact head (11).