CN2677517Y

CN2677517Y - Anti-theft door lock

Info

Publication number: CN2677517Y
Application number: CN 200420005916
Authority: CN
Inventors: 侯作义; 韩明华; 刘国强
Original assignee: 侯作义
Priority date: 2004-03-11
Filing date: 2004-03-11
Publication date: 2005-02-09
Anticipated expiration: 2014-03-11

Abstract

The utility model discloses an anti-theft door lock, comprising two parts: a lock core and an unlocking transmission. The lock core comprises a key-selecting lock core, a first toothed lock core, and a second toothed lock core which are arranged orderly. The exterior of the lock core is covered by a protective cover made from material with higher hardness. The unlocking transmission part comprises a disk, a gear wheel, a main drive gear, a ratchet gear wheel, a travel switch, a spring, a positioning lock, a safety rod, and a safety lock. The open and close and the safety of the door lock can be realized by the match of the safety rod and the safety lock and the match of the switch and the positioning lock.

Description

Safe-guard door lock

One, technical field

The utility model relates to a kind of safe-guard door lock.

Two, background technology

Present security door all is that anti-picking device is set up separately, with door lock be two systems that separate, private key control is independently arranged separately, and an operating grip is arranged, the control anti-picking device, after security door cuts out, by people's operating grip, four dead bolts of anti-picking device are put in place, enter corresponding lockhole, key, fixedly anti-theft device and insurance then.Rotate another key again, make the door lock insurance.When opening the door, also must open door lock and anti-prying device respectively with two keys.Therefore, lock a door or open the door all fully by manually-operated.

There are three major defects in this system:

(1), lock a door and opening door operation trouble time-consuming.(2), close the door when locking a door, because of forgetting, be pressed for time or the indoor people of having, the handle of inoperation anti-prying system, at this moment, pick-proof and safeties are ineffective fully, give the robber with opportunity, often cause any property loss or personal injury.(3), the anti-prying device reliability is poor, the robber can open insurance by destroying lock core, thereby opens anti-picking device and door lock.

Three, the content of utility model

The utility model provides a kind of anti-prying door lock, by be installed in the door side with lock travel switch 19 control pick-proof and safeties, door lock and anti-picking device are combined into a system, by same key operated.At closing time, door lock and anti-picking device automatic locking and voluntary insurance.

The structure of lock mainly comprises lock core and the transmission two parts of unblanking.

1, lock core is made up of four parts, and the effect that (1) over cap 25 plays key importing effect and protects lock core not to be destroyed is made with the material that hardness is higher.When unblanking, not with key turns.(2) choosing spoon lock core 26 is major parts of selecting key, and non-lock key inserts, can not rotational lock core.(3) first band tooth lock cores 27 assist choosing spoon lock core 26 to select key and drive the effect that band ratchet gear 8 rotates.(4) second band tooth lock cores 7 mainly play a part to drive the running part rotation of unblanking, and are the power sources of the whole running part of unblanking, and also work to select key.

2, the running part of unblanking comprises three gears, (1) main drive gear 6, and main rising passed to gear 5 with the rotation of the second band tooth lock core 7, and the number of teeth of main drive gear 6 can make the strength of key alleviate greater than the number of teeth of the second band tooth lock core 7 simultaneously.(2) gear 5 mainly plays 12 rotations of drive garden dish, in design, guarantees the rotation of rotational hysteresis in band ratchet gear 8, and when door is opened, key is stopped the rotation.(3) band ratchet gear 8 main rise when key when unblanking to rotate Halfway Stopping, prevent garden dish 12 under the effect of spring 4 ' to counterclockwise rotating (key is turned round to the opposite direction of unblanking).

When 3, key inserts lock core, will select spoon lock core 26, the first band tooth lock core 27, the second band tooth lock core 7 to be linked to be as a whole.The key rotation, above-mentioned lock core rotates simultaneously, and the first band tooth lock core 27 drives band ratchet-gear wheel 8 and rotates, and second lock core 7 drives main drive gear 6 and rotates.After key is extracted, choosing spoon lock core 26, the first band tooth lock core 27, the second band tooth lock core 7 do not link to each other mutually, so when security door is locked a door automatically, garden dish 12 is to counterclockwise rotating, driven gear 5, main drive gear 6 and the second band tooth lock core 7 rotate, and the band ratchet gear 8 and the first band tooth lock core 27 do not rotate thereupon.

The security door that this cover voluntary insurance anti-theft door system contrasts present manually-operated pick-proof and safeties has following outstanding advantage:

(1) lock a door efficient and convenient, need not manually-operated, automatic locking, voluntary insurance.

(2) as long as close the door, pick-proof and safeties are with regard to automatic locking and insurance.Situation whatsoever, as long as close the door, then security door has no exploits the theft thief all at locking and safety position.

(3) Suo structure can prevent effectively that with the running of unblanking the robber from opening the possibility of pick-proof and safeties by destroying lock core.

Therefore, this cover system has overcome the defective that present security door exists, more convenient operation, antitheft better reliability.

Four, description of drawings

Fig. 1 is an anti-prying door lock running schematic diagram.

Dead bolt state diagram when Fig. 2 is the anti-prying non-locking door.

Fig. 3 is the state diagram behind the Anti-pry safety door locking.

Fig. 4 is the lock core exploded view.

Five, the specific embodiment

1, the structure of locking anti-prying door lock and the course of work are referring to accompanying drawing 1,2,3,4:

Security door is in when not locking state, and dead bolt 22 stretches out outdoors.

(1) at closing time, dead bolt 22 inserts lockhole K1, and travel switch 19 puts in place thereupon, and its spring 20 is in compressive state.

(2) the compression spring 20 that links to each other with travel switch 19 promotes backstay 13 and upwards lifts, and an end 3 ' of backstay 13 lifts, and leaves the position and lock point 2 on the disk 12, thereby loses the positioning action to disk 12.

(3) then disk 12 under the effect of spring 4 ', rotate to clockwise direction, thereby drive coupled dead bolt bar 11,17,4 and bumper bar 23 moves, make

dead bolt

10,18,3 insert the lockhole K2 that is positioned on the doorframe respectively, K3 is among the K4.

(4) along with dish 12 rotates to counter clockwise direction, an end 22 ' of bumper bar 23 moves to 1: 21 ' on the dead bolt 22, and dead bolt 22 is fixed on vertical attitude of lock and insurance, and dead bolt 22 can not be moved to the direction of leaving lockhole.

(5) along with the rotation of disk 12, safety lock 15 turn to an end 15 of bumper bar 16 ', the bar 16 of being insured is fixing and realize the insurance of disk 12, disk 12 stops can not to rotate to clockwise direction to counterclockwise rotating.Realize the automatic locking and the voluntary insurance of door lock and anti-picking device, the end of locking a door, security door is in locking and safety position.

2, the process of opening the door.

Security door is in locking and safety position.Indoor, outdoor operating process of opening the door is identical.

(1) inserts key, after key puts in place, then can rotate to clockwise direction.

(2) to the clockwise direction screw key, the first band tooth lock core 27 rotates thereupon, drives 8 rotations of band ratchet gear, and travel switch 9 is opened bumper bar 16, and promptly bumper bar 16 moves to disk 12 edge directions, leaves safety plug 15, makes garden dish 12 return to rotatable state.

(3) key is rotated further, and drives 7 rotations of the second band tooth lock core, gear 6, gear 5 rotates thereupon, because gear 5 is not a complete gear, makes its rotation be later than the rotation of gear 8 in design, after treating that just in time bumper bar 16 is opened, garden dish 12 is when rotatable state, and 5 begin rotation.Garden dish 12 also rotates to clockwise direction with gear 5, drives dead bolt bar 11,17,4 and bumper bar 23 and moves, and makes

dead bolt

22,10, and 18,3 four dead bolts move to the direction that breaks away from lockhole.

(4) along with the continuation of key rotation, from lockhole, security door is unlocked at this moment to fully for

dead bolt

22,10,18,3 four dead bolts.At this moment, an end 3 ' of backstay 13 is positioned at the top of the alignment pin 2 of garden dish 12.Because gear 5 has turned to no toothed portion, so key can not be rotated further.

(5) after security door was open, the spring of travel switch 19 20 returned to stretched condition by compressive state, and the alignment pin 2 of the insertion garden dish C of an end 3 of backstay 13 ' under the effect of spring 1 is fixed on opening with anti-picking device.

(6) simultaneously, the spring 20 of travel switch 19 is returned in the process of stretched condition by compressive state, clamping stroke switch 14, make an end 14 ' of travel switch 14 upwards lift bumper bar 23, make the end 22 ' on the bumper bar 23 leave dead bolt 22 and point 21 ', bumper bar 23 is in opening, no longer fixedly dead bolt 22, dead bolt 22 spring 19 ', be returned to by opening under 24 the effect and treat the lock state, be ejected into outside the limit.

The process of opening the door finishes, and security door is returned to original state as shown in Figure 2.

Claims

1, a kind of safe-guard door lock comprises lock core and the transmission two parts of unblanking, and it is characterized in that, lock core is arranged in order by choosing spoon lock core, the first band tooth lock core and the second band tooth lock core and constitutes, and the over cap of being made by the higher material of hardness is stamped in the lock core outside; The running part of unblanking comprises disk, gear, main drive gear, band ratchet-gear wheel, travel switch, spring, location lock, bumper bar and safety lock.

2, safe-guard door lock as claimed in claim 1 is characterized in that, the first band tooth lock core and the engagement of band ratchet-gear wheel, and the band ratchet-gear wheel links to each other with a bumper bar, and bumper bar cooperates the insurance that realizes security door with safety lock.

3, safe-guard door lock as claimed in claim 1 is characterized in that, the second band tooth lock core and main drive gear engagement, and main drive gear and gears engaged, gear and disk are an integral body.

As claim 1 or 3 described safe-guard door locks, it is characterized in that 4, gear is an incomplete gear, include toothed portion and no toothed portion.

As claim 1 or 3 or 4 described safe-guard door locks, it is characterized in that 5, the number of teeth of main drive gear is greater than the number of teeth of the second band tooth lock core.

As claim 1 or 3 or 4 described safe-guard door locks, it is characterized in that 6, the band ratchet-gear wheel prevents that in the process of unblanking when key stopped operating, disk turned round.