CN2672224Y

CN2672224Y - Convenient safety door lock

Info

Publication number: CN2672224Y
Application number: CN 200420030068
Authority: CN
Inventors: 赵国忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-01-06
Filing date: 2004-01-06
Publication date: 2005-01-19
Anticipated expiration: 2014-01-06

Abstract

The utility model belongs to a door lock, in particular to a convenient safety door lock, mainly comprising a lock body 3, a lock case 4, an upper lock tongue 2, a lower lock tongue 32, a shifting fork 9, a shifting fork seat 16, a manually operated shifting fork 15, a spring, etc. A safety mechanism is arranged on the lock body 3 and the lock case 4. The safety mechanism comprises a safety tongue 1 which is movably arranged on a flat side of the upper lock tongue 2; the safety tongue 1 is fixed on a safety tongue seat 5 by a countersunk screw. The left end of the safety tongue seat 5 is made into a U shape, and the right end is made into a square shape. The middle part of the left side of the square is provided with a pillar 5-1 which penetrates a hole on one side of a U-shaped bracket 12. The pillar 5-1 is provided with the spring 6. The shifting fork 9 is movably inserted in the square hole of the safety tongue seat 5. By using the convenient safety door lock, a user can not lock up the door when the key to the door is left in a room, so the trouble is avoided.

Description

Convenient and safe door lock

Technical field

The utility model belongs to door lock, particularly a kind of convenient and safe door lock.

Technical background

At present, the door lock kind that people use is a lot, generally is mechanical lock, turn the key in the lock, only need when locking a door door is shut, can automatic locking on, very big disadvantage of this door lock, when you leave behind key because of carelessness, and a key is forgotten indoor, smoothly with on the door lock, rethinks and into indoorly just can't open the door, this worry happens occasionally, even can bring danger and to the destructiveness of door lock to people.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned technical deficiency, provide a kind of people to go out after must with key could be a kind of convenient and safe door lock on the door lock.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of by lock body, lock housing, upper lock tongue, following dead bolt, shift fork, manually critical pieces such as shift fork and spring are formed, be characterized in adorning on lock body and the lock housing insurance institution, it is included in its insurance institution the upper lock tongue planar side and adorns a safety tongue versatilely, safety tongue is fixed on the safety tongue seat with countersink head screw, safety tongue seat left end is made the U font, right-hand member is made square shape, in the middle of the mouth word left side, be provided with a pillar, pillar passes the hole of U type support one side, spring is housed on the pillar, shift fork passes in the safety tongue seat square shape hole, in order to the position of control safety tongue seat and safety tongue.

The utility model beneficial effect is: use this lock, people just can not forget indoor because of a key, and with on the door lock, bring unnecessary worried and trouble to people.

Description of drawings

Specify with embodiment below in conjunction with accompanying drawing.

Fig. 1 shows convenient and safe door lock general assembly drawing.

Insurance institution's parts front view of Fig. 2 diagrammatic sketch 1.

The vertical view of Fig. 3 diagrammatic sketch 2.

Among the figure, the 1-safety tongue; The 2-upper lock tongue; The 3-lock body; The 4-lock housing; 5-safety tongue seat; The 5-1-pillar; The 6-spring; The 7-slideway; The 8-limiting plate; The 9-shift fork; 10-spring (going up locking bar); 11-upper lock tongue bar; 12-U shape bearing; The 13-position limiting slide block; The 14-slideway; The manual shift fork of 15-; 16-shift fork seat; The 17-T-shaped; The 18-spring; The 19-supporting base; The 20-spring; The 21-clamp; 22-clamp projection; The 23-stop collar; The 24-column; The 25-chute; The 26-lock core hole; The 27-bearing post; Dead bolt seat under the 28-; The 29-top flat; The 30-chute; The 31-column; Dead bolt under the 32-; The 33-supporting base; 34-lock housing lid

The specific embodiment

With reference to accompanying drawing 1, this door lock is fixedly welded with lock housing 4 and two supporting bases 33 on lock body 3, lock body 3 is provided with two slots, keeping supplying dead bolt 2 safety tongues 1 and following dead bolt 32 activities passes, lock housing 4 is provided with slideway 14, lock core hole 26 and door handgrip square hole, and fix two bearing posts 27, upper lock tongue 2 is fixed together with upper lock tongue bar 11, on the last locking bar 11 spring 10 is housed, spring 10 right-hand members are fixed on U-shaped and prop up on the seat mouth, a position limiting slide block 13 is equipped with in last locking bar 11 right-hand member activities, position limiting slide block 13 is through in the slideway 14, but move left and right, manually grab on the shift fork 15 with position limiting slide block 13 and flexibly connect, manually shift fork 15 is contained in shift fork seat 16 bottoms, shift fork 9 also is equipped with on top, shift fork 9 is provided with two pawls, lower left pawl and top flat 29 are slidingly connected, contacting of top-right pawl activity with T-shaped bar 17 terminations, T-shaped bar 17 is installed with spring 18, the hole of passing supporting base 19 of lower end activity, supporting base 19 is fixed on the lock housing 4, being provided with square hole in the middle of the shift fork seat 16 is used for connecting with the door handgrip, clamp 21 tops are provided with projection 22 and a square bar, spring 20 is housed on the square bar, being through in supporting base 19 holes of termination activity, bottom is a circular arc, to contact with the lock core in being contained in lock core hole 26 is movable, the screwed column 24 in upper end of center fixed, stop collar 23 is equipped with in activity on the column 24, with screw stop collar 23 is fixed on the column, adorn a following dead bolt seat 28 in activity on the column 24 and between the stop collar 23, following dead bolt seat 28 is provided with chute 25, following lock 28 can be along chute 28 side-to-side movements, left end is fixed a following dead bolt 32, right section goes up bottom and is provided with groove, upper groove and clamp projection 22 are movable chimeric, following groove will be chimeric in lock core, two columns 31 of center fixed, be provided with two chutes 30 in the middle of the top flat 29, flexibly connect by column 31 and following dead bolt seat 28, top flat 29 top contacts and the 16 lower left pawl sliding-contacts of shift fork seat, lower end, the left side is provided with a projection and will contacts with lock core, top flat 29 can move up and down, and lock housing lid 34 usefulness screws are fixed together by supporting base 33 and bearing post 27, are provided with lock core hole 26 and door knob hand hole above, for the position that prevents that upper lock tongue 2 from moving right, at the limiting plate 8 of adorning of lock housing 4 activities.

This allows lock guarantee that it is to realize like this that key can not forgotten in indoor function, when going out, at first door handle is changeed an angle clockwise indoor, drive shift fork 9 simultaneously, manually shift fork 15 and 16 while of shift fork seat up time are rotated an angle, manually the pawl above the shift fork 15 will be stirred position limiting slide block 13, driving upper lock tongue 2 and last locking bar 11 moves right along slideway 14 together, the upper lock tongue 2 that will have the inclined-plane takes back 4 li of lock housings, and compression spring 10, simultaneously, manually the pawl above the shift fork 15 is also with safety tongue seat 5, safety tongue 1 retracts 4 li of lock housings together, and compression spring 6, door can be opened, opening the back can eject upper lock tongue 2 and insurance dead bolt 1 outside the lock housing 4 again under the reaction force of

spring

10 and 6, upper lock tongue 2 is because of there being an inclined-plane, can enter again in the dead bolt box on the doorframe, once more with on the door lock, but because of establishing a safety tongue 1, it is under the elastic force effect of spring 6, again stretch out outside the lock housing 4, door just can not locked again, so want after going out to lock a door, must lock a door with key again, forget in indoor problem with regard to solving a key like this.

Claims

1, a kind of convenient and safe door lock, mainly by lock body (3), lock housing (4), upper lock tongue (2), following dead bolt (32), shift fork (9), shift fork seat (16), manually component such as shift fork (15) and spring are formed, it is characterized in that on lock body (3) and lock housing (4), adorning an insurance institution, its planar side of being included in upper lock tongue (2) of its insurance institution is adorned a safety tongue (1) versatilely, safety tongue (1) is fixed on the safety tongue seat (5) with countersink head screw, safety tongue seat (5) left end is made the U font, right-hand member is made square shape, in the middle of the square shape left side, be provided with a pillar (5-1), pillar (5-1) passes the hole of U-shaped support (12) one sides, and spring (6) is housed on the pillar (5-1).

2, convenient and safe door lock according to claim 1 is characterized in that shift fork (9) is through in the square shape hole of safety tongue seat (5) versatilely.