CN203271295U - Automatic anti-theft lock - Google Patents

Abstract

The utility model discloses an automatic anti-theft lock which comprises a face plate (1), a shell (2), a main locking dog (10), a carriage (8), a lock core (9) and a transmission rack (11), wherein a lock hook tension spring fixing pin (40) is fixedly arraanged on the carriage (8), a carriage limiting pin guide groove (31) is formed in the carriage (8), a carriage limiting pin (29) is arranged in the carriage limiting pin guide groove (31), a lock hook (33) is hinged on the carriage (8), a carriage fixing step (28) is arranged on the carriage (8), a lock hook tension spring fixing sheet (34) is arranged on the lock hook (33), a lock hook limiting groove (32) is formed in the lock hook (33), a trigger hook (14) is hinged on the shell (2), a trigger hook front blocking sheet (13) and a trigger hook fixing sheet (27) are arranged on the trigger hook (14), a trigger hook tension spring (26) is connected between the carriage limiting pin (29) and the trigger hook (14), and a lock hook tension spring (39) is arranged between the lock hook tension spring fixing pin (40) and the lock hook tension spring fixing sheet (34). By adopting the structure, the automatic anti-theft lock disclosed by the utility model has the advantages of being simple and reasonable in structure, portable to operate and use, safe and reliable in working, good in anti-theft performance, and the like.

Description

Automatic anti-theft lock

Technical field

The invention relates to a kind of safe-guard door lock, particularly a kind of Automatic anti-theft lock that uses on security door.

Background technology

As everyone knows, safe-guard door lock is the core component of security door, and its quality directly has influence on security performance and the functional performance of security door.Chinese patent 200520112482.6 discloses a kind of automatic door lock, it comprises a lock housing with front panel, and is arranged on dead bolt member in lock housing, is arranged on a dead bolt locking biasing member realizing described dead bolt member locking between described dead bolt member and described lock housing; A lock tongue protruding guide correcting mechanism; One is arranged in described lock housing and controls described dead bolt member and stretch out the bolt extending control mechanism on opportunity; And opening mechanism of lock spring bolt of controlling described dead bolt breakdown action; Described opening mechanism of lock spring bolt comprises a transmission main element that is fixedly connected on described dead bolt member, and described transmission main element is connected with the unlocking force output block of tapered end; This is simple and compact for structure, and dead bolt is opened automatically.But in use have following problem: the one, the drive disk assembly complex structure that is connected with lock core, thus in production and processing and assembling process large, the processing of difficulty and efficiency of assembling low, mechanical breakdown easily occurs, application life is short.The 2nd, positioning bead is spacing owing to adopting, and automatic door lock can't be strengthened spacing, and stressed easy retraction is worked unreliable, the pick-proof poor performance.The 3rd, trigger unlocking structure complicated, quality of fit requires high, and assembly difficulty is large, poor reliability, fault rate is high.For this reason, many manufacturers and knowledgeable people are studied and develop for the problems referred to above, but not yet have so far desirable product to emerge on market.

Summary of the invention

The above-mentioned disadvantage that exists for overcoming existing automatic door lock, the purpose of the invention be to provide a kind of simple and reasonable, process and assemble easily, operation use light, safe and reliable, mechanical strength is high, theftproof performance good, the Automatic anti-theft lock of long service life.

the invention solves the problems of the technologies described above the technical scheme that adopts, it comprises panel, housing, cover plate, the master lock tongue, planker, trigger mechanism, lock core, driving rack, the elastic force mechanism for locking up, described driving rack is movably arranged on planker, be fixed with latch hook extension spring steady pin on planker, planker is provided with planker spacer pin guide groove, be provided with the planker spacer pin that is fixedly connected with housing in planker spacer pin guide groove, be hinged with latch hook on planker, planker is provided with fixedly step of planker, latch hook is provided with the latch hook extension spring stator that matches with driving rack and the latch hook stopper slot that matches with the planker spacer pin, be hinged with the triggering hook on housing, trigger hook be provided with catch before the triggering hook that matches with the trigger mechanism guide rod and with the fixing triggering hook stator that matches of step of planker, be connected with between planker spacer pin and triggering hook and trigger the hook extension spring, be provided with the latch hook extension spring between latch hook extension spring steady pin and latch hook extension spring stator.

The further scheme of the invention, described elastic force mechanism for locking up is the elastic force pulling mechanism, described elastic force pulling mechanism comprises planker lead, planker extension spring and is arranged on planker stator on planker, the planker lead is arranged in the planker guide groove of planker and is fixedly connected with housing, and the planker extension spring is connected between planker lead and planker stator.

The further scheme of the invention, described elastic force mechanism for locking up is the elastic force pushing mechanism, described elastic force pushing mechanism comprises promotion spring, planker conduit, the planker conduit is fixed on planker and is movably arranged on the housing prerotation vane of housing, promotes spring and is arranged in the planker conduit and arranges between the rear wall of planker and housing.

The further scheme of the invention, the left and right sides correspondence of described planker is hinged with left and right hook tongue, and left and right hook tongue is flexibly connected by the left and right hook tongue guide groove on hook tongue guide pillar correspondence and housing.

The further scheme of the invention, described cover plate is provided with telescopic left and right brace, on the brace of left and right, correspondence is provided with left and right brace guide groove and left and right brace chute, cover plate is provided with left and right T shape guide groove, fixing left and right cover plate guide pillar on the cover board is corresponding to be coordinated with left and right brace guide groove is movable, the left and right brace guide pillar correspondence that is fixed on the brace of left and right coordinates with left and right T shape guide groove is movable, and the left and right planker guide pillar correspondence that is fixed on planker coordinates with left and right brace chute and the activity of left and right T shape guide groove.

The further scheme of the invention, described cover plate is provided with locking mechanism, this locking mechanism comprises to be locked knob, lock sheet, locks torsion spring, locking knob is arranged between housing and cover plate rotationally, lock sheet and lock knob and fix, the banking stop of locking of locking on sheet and planker is complementary, and locks torsion spring and is connected to and locks sheet and lock between the torsion spring steady pin, locks the torsion spring steady pin and is fixed on housing.

The further scheme of the invention, described cover plate is provided with interior opening mechanism, should comprise interior unlatching knob, interior unlatching rotating plate, interior unlatching double-action plate by interior opening mechanism, interior unlatching knob is arranged between housing and cover plate rotationally, interior unlatching rotating plate and interior unlatching knob are fixed, interior unlatching double-action plate by the double-action plate swivel pin on the cover board hinged and with the engagement of interior unlatching rotating plate, the end of interior unlatching double-action plate coordinates with driving rack lug on driving rack.

The further scheme of the invention, described interior unlatching rotating plate is provided with interior unlatching stopper slot, and interior unlatching stopper slot is provided with the interior unlatching spacer pin fixing with cover plate, is fixedly connected with interior unlatching banking stop on double-action plate swivel pin and interior unlatching spacer pin.

after adopting said structure, compared with prior art have the following advantages and effect: the one, because latch hook is provided with the latch hook extension spring stator that matches with the driving rack step and the latch hook stopper slot that matches with the planker spacer pin, trigger hook be provided with catch before the triggering hook that matches with the trigger mechanism guide rod and with planker fixedly the triggering hook stator triggering hook that matches of step directly be hinged on housing, driving rack and latch hook move with planker, when locking, the planker spacer pin coordinates with the latch hook stopper slot, under the effect of latch hook tension spring, assurance is locked reliably, be subjected to the External Force Acting pick-proof that do not bounce back effective, triggering hook directly is hinged on housing, do not move with planker, before the trigger mechanism guide rod touch to trigger hook during catch, trigger hook and planker fixedly step separate fast, lock light, open simpler and more direct.The 2nd, because the elastic force mechanism for locking up both can adopt the elastic force pulling mechanism, also can adopt the elastic force pushing mechanism, so can adapt to the Automatic anti-theft lock of different size size.The 3rd, due to simple and compact for structure, production and processing and easy to assembly, production efficiency is high, and cost of production is low.

Description of drawings

Structural representation when Fig. 1 is the locking of the invention the first embodiment.

Covering plate structure schematic diagram when Fig. 2 is the locking of the invention the first embodiment.

Fig. 3 is the structural representation of the invention the first embodiment when locking.

Fig. 4 is the covering plate structure schematic diagram of the invention the first embodiment when locking.

Fig. 5 is the structural representation of the invention the second embodiment when locking.

1 panel wherein, 2 housings, 3 left hook tongue guide grooves, 4 hook tongue guide pillars, 5 left hook tongues, 6 hook tongue swivel pins, 7 left planker guide pillars, 8 plankers, 9 lock cores, 10 master lock tongues, 11 driving racks, 12 trigger mechanisms, 13 trigger the front catch of hook, 14 trigger hook, 15 trigger the hook swivel pin, 16 interior unlatching knobs, 17 right planker guide pillars, 18 right hook tongues, 19 right hook tongue guide grooves, 20 planker leads, 21 planker extension springs, 22 planker guide grooves, 24 planker stators, 25 trigger hook extension spring stator, 26 trigger the hook extension spring, 27 trigger the hook stator, 28 plankers are step fixedly, 29 planker spacer pins, 30 latch hook swivel pins, 31 planker spacer pin guide grooves, 32 latch hook stopper slots, 33 latch hooks, 34 latch hook extension spring stators, 35 driving rack steps, 36 driving rack guide pillars, 37 driving rack guide grooves, 38 driving rack lugs, 39 latch hook extension springs, 40 latch hook extension spring steady pins, 41 lock banking stop, 42 lock torsion spring, 43 lock brace, 44 lock knob, 45 left braces, 46 left cover guide pillars, 47 left brace guide grooves, 48 left T shape guide grooves, 49 left brace chutes, 50 left brace guide pillars, 51 lock core holes, 52 cover plates, 53 right brace guide pillars, 54 right brace chutes, 55 right T shape guide grooves, 57 right brace guide grooves, 58 right cover plate guide pillars, 59 right braces, 60 lock the torsion spring steady pin, 61 interior unlatching rotating plates, 62 interior unlatching spacer pins, 63 interior unlatching stopper slots, 64 interior unlatching banking stops, 65 double-action plate swivel pins, 66 interior unlatching double-action plates, 67 planker conduits, 68 housing prerotation vanes, 69 promote spring.

The specific embodiment

Fig. 1 is to shown in Figure 4, the first specific embodiments for a kind of Automatic anti-theft lock of the invention, it comprises panel 1, housing 2, cover plate 52, master lock tongue 10, planker 8, trigger mechanism 12, lock core 9, driving rack 11, the elastic force mechanism for locking up, housing 2 is fixing with panel 1, cover plate 52 is fixing with housing 2, lock core 9 is fixed on housing 2 and stretches out the lock core hole 51 of cover plate 52, described driving rack 11 is provided with driving rack step 35 and driving rack guide groove 37, driving rack 11 by be fixed on planker 8 driving rack guide pillar 36 be movably arranged on coordinating of driving rack guide groove 37 on planker 8, heterotypic gear engagement on driving rack 11 and lock core 9, be fixed with latch hook extension spring steady pin 40 on planker 8, planker 8 is provided with planker spacer pin guide groove 31, be provided with the planker spacer pin 29 that is fixedly connected with housing 2 in planker spacer pin guide groove 31, be hinged with latch hook 33 by latch hook swivel pin 30 on planker 8, planker 8 is provided with fixedly step 28 of planker, latch hook 33 is provided with the latch hook extension spring stator 34 that matches with driving rack step 35 and the latch hook stopper slot 32 that matches with planker spacer pin 29, when locking, planker spacer pin 29 coordinates pinning planker 8 with latch hook stopper slot 32, be hinged with triggering hook 14 by triggering hook swivel pin 15 on housing 2, trigger hook 14 be provided with catch 13 before the triggering hook that matches with trigger mechanism 12 guide rods and with the fixing triggering hook stator 27 that matches of step 28 of planker, trigger during locking hook stator 27 and planker fixedly step 28 coordinate pinning planker 8, trigger hook 14 and be provided with triggering hook extension spring stator 25, be connected with between planker spacer pin 29 and triggering hook extension spring stator 25 and trigger hook extension spring 26, be provided with latch hook extension spring 39 between latch hook extension spring steady pin 40 and latch hook extension spring stator 34.Because planker spacer pin 29 is arranged on planker 8 with triggering hook 14, thus lock or during locking planker 8 positions can not change, thereby guarantee that master lock tongue 10 and left and right hook tongue 5,18 positions can not change.

Described elastic force mechanism for locking up is the elastic force pulling mechanism, and be arranged on the both sides, rear portion of planker 8, described elastic force pulling mechanism comprises planker lead 20, planker extension spring 21 and is arranged on the planker stator 24 at planker 8 rear portions, planker lead 20 is arranged in the planker guide groove 22 of planker 8, planker lead 20 is fixed on housing 2, planker extension spring 21 is connected between planker lead 20 and planker stator 24, when locking under planker extension spring 21 elastic force effects planker 8 promote master lock tongues 10 and drive left and right hook tongue 5,18 to lock simultaneously.

The left and right sides of described planker 8 is hinged with left and right hook tongue 5,18 by hook tongue swivel pin 6 correspondences, and left and right hook tongue 5,18 is flexibly connected by the left and right hook tongue guide groove 3,19 on hook tongue guide pillar 4 correspondences and housing 2.

described cover plate 52 is provided with telescopic left and right brace 45, 59, left and right brace 45, on 59, correspondence is provided with left and right brace guide groove 47, 57 and left and right brace chute 49, 54, cover plate 52 is provided with left and right T shape guide groove 48, 55, be fixed on the left and right cover plate guide pillar 46 on cover plate 52, 58 corresponding and left and right brace guide grooves 47, 57 movable cooperations, be fixed on left and right brace 45, left and right brace guide pillar 50 on 59, 53 corresponding and left and right T shape guide grooves 48, 55 movable cooperations, be fixed on the left and right planker guide pillar 7 on planker 8, 17 corresponding and left and right brace chutes 49, 54 and left and right T shape guide groove 48, 55 movable cooperations.

Described cover plate is provided with locking mechanism, this locking mechanism comprises to be locked knob 44, lock sheet 43, locks torsion spring 42, locking knob 44 is arranged between housing 2 and cover plate 52 rotationally, lock sheet 43 and lock knob 44 fixing, the banking stop 41 of locking of locking on sheet 43 and planker 8 is complementary, lock torsion spring 42 and be connected to and lock sheet 43 and lock between torsion spring steady pin 60, lock torsion spring steady pin 60 and be fixed on housing 2.When adopting the elastic force pulling mechanism, lock torsion spring steady pin 60 and can use planker lead 20, do not need independent setting.

Described cover plate 52 is provided with interior opening mechanism, should comprise interior unlatching knob 16, interior unlatching rotating plate 61, interior unlatching double-action plate 66 by interior opening mechanism, interior unlatching knob 16 is arranged between housing 2 and cover plate 52 rotationally, interior unlatching rotating plate 61 is fixing with interior unlatching knob 16, interior unlatching double-action plate 66 be hinged on cover plate 52 by double-action plate swivel pin 65 and with interior unlatching rotating plate 61 engagements, the end of interior unlatching double-action plate 66 coordinates with driving rack lug 38 on driving rack 11.Described interior unlatching rotating plate 61 is provided with interior unlatching stopper slot 63, and interior unlatching stopper slot 63 is provided with the interior unlatching spacer pin 62 fixing with cover plate 52, is fixedly connected with interior unlatching banking stop 64 on double-action plate swivel pin 65 and interior unlatching spacer pin 62.

The invention operating principle is as follows: when laying the key under the door, trigger mechanism 12 touching door frames, the guide rod of trigger mechanism 12 promotes to trigger the front catch 13 of triggering hook of hook 14, triggering hook 14 rotates around triggering hook swivel pin 15, trigger on hook 14 triggering hook stator 27 and planker fixedly step 28 separate, planker 8 is in released state, and planker 8 drives master lock tongue 10 and left and right hook tongue 5,18 and ejects and enter the doorframe lockhole and complete master lock and lock under the planker extension spring 21 elastic force effects of both sides; When planker 8 drives master lock tongue 10 and left and right hook tongue 5, on planker 8, left and right planker guide pillar 7,17 is in the left and right of correspondence brace chute 49,54 and left and right T shape guide groove 48,55 interior slips and promote left and right brace 45,59 and stretch out, lock lock thereby complete to pay, as shown in Figure 3 and Figure 4.

Lock when locking when needs, rotate and lock knob 44, make and lock sheet 43 supports the locking on banking stop 41 of planker 8, guarantee that planker 8 cannot bounce back, thereby complete the work of locking of master lock tongue 10 and left and right hook tongue 5.When the needs locking is locked, lock sheet 43 and withstand on locking on banking stop 41 of planker 8, under the elastic force effect of locking torsion spring 42, guarantee that master lock tongue 10 and left and right hook tongue 5 can not eject, thereby complete the work of locking.

when from interior unlatching, open knob 16 in rotating, opening double-action plate 66 in interior unlatching knob 16 drives by interior unlatching rotating plate 61 rotates, at first the end of interior unlatching double-action plate 66 drives driving rack 11 by driving rack lug 38 and moves, promoting latch hook 33 by driving rack step 35 when driving rack 11 moves rotates, latch hook stopper slot 32 on latch hook 33 is separated with planker spacer pin 29, when being rotated further again interior unlatching knob 16, driving rack 11 drives planker 8 and moves, when the planker on planker 8 when fixedly step 28 is corresponding with the triggering hook stator 27 on triggering hook 14, triggering under hook extension spring 26 elastic force effects, trigger hook stator 27 and snap in planker fixedly on step 28 and pin planker 8, thereby open master lock tongue 10 and left and right hook tongue 5, 18 realize interior purpose of opening.

when opening the lock with the key, lock core 9 drives driving rack 10 and moves, driving rack 10 does not drive planker 8 when moving and moves in the scope of driving rack guide groove 37, only promoting latch hook 33 by driving rack step 35 rotates, latch hook stopper slot 32 on latch hook 33 is separated with planker spacer pin 29, when being rotated further again interior unlatching knob 16, driving rack 11 drives planker 8 and moves, when the planker on planker 8 when fixedly step 28 is corresponding with the triggering hook stator 27 on triggering hook 14, triggering under hook extension spring 26 elastic force effects, trigger hook stator 27 and snap in planker fixedly on step 28 and pin planker 8, thereby open master lock tongue 10 and left and right hook tongue 5, 18, complete locking work, when planker 8 drives master lock tongue 10 and left and right hook tongue 5, on planker 8, left and right planker guide pillar 7,17 is in the left and right of correspondence brace chute 49,54 and left and right T shape guide groove 48,55 interior slips and drive left and right brace 45,59 retractions, pay the locking lock thereby complete, as depicted in figs. 1 and 2.

Shown in Figure 5, the second specific embodiments for a kind of Automatic anti-theft lock of the invention, with the first specific embodiments difference be the elastic force pushing mechanism that described elastic force mechanism for locking up is arranged on planker 8 both sides, rear portion, described elastic force pushing mechanism comprises promotion spring 69, planker conduit 67, planker conduit 67 is fixed on planker 8 and is movably arranged on housing prerotation vane 68, promotes spring 69 and is arranged in planker conduit 67 and arranges between the rear wall of planker 8 and housing 2.Its operating principle and the first specific embodiments are basic identical, no longer repeat at this.

The above; just two embodiment of the invention, be not that any pro forma restriction is made in the invention, do not breaking away from the technical scheme basis of the invention; the simple modification of having done, equivalent variations or modification all fall into the protection domain of the invention.

Claims (8)

1. Automatic anti-theft lock, comprise panel (1), housing (2), cover plate (52), master lock tongue (10), planker (8), trigger mechanism (12), lock core (9), driving rack (11), the elastic force mechanism for locking up, it is characterized in that: described driving rack (11) is movably arranged on planker (8), be fixed with latch hook extension spring steady pin (40) on planker (8), planker (8) is provided with planker spacer pin guide groove (31), be provided with the planker spacer pin (29) that is fixedly connected with housing (2) in planker spacer pin guide groove (31), be hinged with latch hook (33) on planker (8), planker (8) is provided with fixedly step (28) of planker, latch hook (33) is provided with the latch hook extension spring stator (34) that matches with driving rack (11) and the latch hook stopper slot (32) that matches with planker spacer pin (29), be hinged with on housing (2) and trigger hook (14), trigger hook (14) be provided with catch (13) before the triggering hook that matches with trigger mechanism (12) guide rod and with the fixing triggering hook stator (27) that matches of step (28) of planker, be connected with between planker spacer pin (29) and triggering hook (14) and trigger hook extension spring (26), be provided with latch hook extension spring (39) between latch hook extension spring steady pin (40) and latch hook extension spring stator (34).

2. Automatic anti-theft lock according to claim 1, it is characterized in that: described elastic force mechanism for locking up is the elastic force pulling mechanism, described elastic force pulling mechanism comprises planker lead (20), planker extension spring (21) and is arranged on planker stator (24) on planker (8), planker lead (20) is arranged in the planker guide groove (22) of planker (8) and is fixedly connected with housing (2), and planker extension spring (21) is connected between planker lead (20) and planker stator (24).

3. Automatic anti-theft lock according to claim 1, it is characterized in that: described elastic force mechanism for locking up is the elastic force pushing mechanism, described elastic force pushing mechanism comprises promotion spring (69), planker conduit (67), planker conduit (67) is fixed on planker (8) and goes up and be movably arranged on the housing prerotation vane (68) of housing (2), promotes spring (69) and is arranged in planker conduit (67) and arranges between the rear wall of planker (8) and housing (2).

4. according to claim 2 or 3 described Automatic anti-theft locks, it is characterized in that: the left and right sides correspondence of described planker (8) is hinged with left and right hook tongue (5,18), and left and right hook tongue (5,18) is flexibly connected by the left and right hook tongue guide groove (3,19) on hook tongue guide pillar (4) correspondence and housing (2).

5. Automatic anti-theft lock according to claim 4, it is characterized in that: described cover plate (52) is provided with telescopic left and right brace (45, 59), left and right brace (45, 59) upper correspondence is provided with left and right brace guide groove (47, 57) and left and right brace chute (49, 54), cover plate (52) is provided with left and right T shape guide groove (48, 55), be fixed on the left and right cover plate guide pillar (46 on cover plate (52), 58) corresponding and left and right brace guide groove (47, 57) the movable cooperation, be fixed on left and right brace (45, 59) the left and right brace guide pillar (50 on, 53) corresponding and left and right T shape guide groove (48, 55) the movable cooperation, be fixed on the left and right planker guide pillar (7 on planker (8), 17) corresponding and left and right brace chute (49, 54) and left and right T shape guide groove (48, 55) the movable cooperation.

6. Automatic anti-theft lock according to claim 5, it is characterized in that: described cover plate is provided with locking mechanism, this locking mechanism comprises locks knob (44), lock sheet (43), lock torsion spring (42), locking knob (44) is arranged between housing (2) and cover plate (52) rotationally, lock sheet (43) and lock knob (44) fixing, the banking stop (41) of locking of locking on sheet (43) and planker (8) is complementary, locking torsion spring (42) is connected to and locks sheet (43) and lock between torsion spring steady pin (60), locking torsion spring steady pin (60) is fixed on housing (2).

7. Automatic anti-theft lock according to claim 6, it is characterized in that: described cover plate (52) is provided with interior opening mechanism, should comprise interior unlatching knob (16) by interior opening mechanism, interior unlatching rotating plate (61), interior unlatching double-action plate (66), interior unlatching knob (16) is arranged between housing (2) and cover plate (52) rotationally, interior unlatching rotating plate (61) is fixing with interior unlatching knob (16), interior unlatching double-action plate (66) is hinged on cover plate (52) upward and meshes with interior unlatching rotating plate (61) by double-action plate swivel pin (65), the end of interior unlatching double-action plate (66) coordinates with driving rack lug (38) on driving rack (11).

8. Automatic anti-theft lock according to claim 7, it is characterized in that: described interior unlatching rotating plate (61) is provided with interior unlatching stopper slot (63), interior unlatching stopper slot (63) is provided with the interior unlatching spacer pin (62) fixing with cover plate (52), is fixedly connected with interior unlatching banking stop (64) on double-action plate swivel pin (65) and interior unlatching spacer pin (62).

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