CN102653998A

CN102653998A - Automatic door lock

Info

Publication number: CN102653998A
Application number: CN2012101636477A
Authority: CN
Inventors: 李华
Original assignee: ZHANGJIAGANG YOUNIKE HARDWARE TOOLS CO Ltd
Current assignee: Tongling Xiangyu Commerce And Trade Co ltd
Priority date: 2012-05-24
Filing date: 2012-05-24
Publication date: 2012-09-05
Anticipated expiration: 2032-05-24
Also published as: CN102653998B

Abstract

The invention discloses an automatic door lock which can be unlocked when a door is opened, can be locked when the door is closed and can lock a lock tongue. The automatic door lock comprises a lock body and a lock catch, wherein a round head lock tongue and a reset spring are arranged in an inner cavity of the lock body, the head part of the round head lock tongue is movably arranged in a lock tongue hole in an end plate at the top end of the lock body by penetration, a position-limiting seat for preventing the round head lock tongue from sliding out of the inner cavity of the lock body is arranged at the tail part of the round head lock tongue, one end of the reset spring pushes against the inner bottom wall of the lock body, the other end of the reset spring pushes against the position-limiting seat, a bolt hole matched with the reset spring is formed on the end plate at the tail part of the lock body, a cylindrical bolt is movably arranged in the bolt hole by penetration, the reset spring is accommodated in the bolt hole, a lock pin is arranged on one side of the bolt, which is arranged outside the lock body, and the automatic door lock further comprises a locking mechanism which is matched with the lock pin; and the lock catch is provided with an S-shaped curved surface which is matched with the round head lock tongue and is constituted by smooth transition concave and convex curved surfaces along the opening direction of the door. The automatic door lock is mainly used on a door of a public toilet.

Description

Automatic door lock

Technical field

The present invention relates to a kind of door lock, refer more particularly to a kind ofly automatically lock at closing time, the door lock of automatic unlocking when pushing.

Background technology

At present, be installed in the door lock on the door of shared lavatory, its structure is all very complicated usually, and is provided with door handle in both sides, and is provided with locking mechanism in the inboard of door (being commonly called as insurance).As everyone knows, the door switch in shared lavatory is very frequent, thereby causes the especially very easy damage of door handle of door lock; And when door was in closed condition, can't know had nobody on earth in the lavatory, whether lock (the locking dead bolt) of guarding the gate that can only turn the handle through trying, thus confirm in the lavatory whether the people is arranged.Turn the handle so continually, more aggravated the strain of door handle, shortened its application life.

Summary of the invention

Technical problem to be solved by this invention is: a kind of release of opening the door is provided, lays the key under the door and the automatic door lock of lockable dead bolt.

For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: automatic door lock comprises lock body and snap close; Be provided with round end dead bolt and back-moving spring in the said lock body inner chamber; The head movement of round end dead bolt is located in the dead bolt hole of lock body top end plate, and the afterbody of round end dead bolt is provided with and prevents that the round end dead bolt from skidding off the limit base of lock body inner chamber, and an end of back-moving spring is pressed on the interior diapire of lock body; The other end of back-moving spring is pressed on the limit base; Offer the pin hole that matches with back-moving spring on the said lock body afterbody end plate, the movable latch that is equipped with tubular in the pin hole, described back-moving spring is housed in the hole of this latch; The side of latch outside lock body is provided with lock pin, and described automatic door lock also includes the locking mechanism that matches with lock pin; Described snap close is provided with the serpentine curved surface that the concave, convex curved surface by seamlessly transitting that matches with the round end dead bolt constitutes along the opening direction of door.

Described locking mechanism comprises that a pair of journal stirrup and the bearing pin and the end that are located in this a pair of journal stirrup are set in the hasp on the lock shaft, and the other end of hasp offers the lockpin hole that matches with described lock pin.

Further technical problem to be solved by this invention is: provide a kind of from knowing the automatic door lock that nobody is arranged in the door outdoors.

For solving the problems of the technologies described above; The technical scheme that the present invention adopted is: described latch opposite side with respect to lock pin outside lock body is provided with push rod; The end of push rod is provided with slide plate; Described automatic door lock also includes the slide plate frame that matches with slide plate, and the slide plate frame is provided with the panel that the middle part offers display window, and described slide plate slides is arranged in the slide plate frame.

The invention has the beneficial effects as follows: structure of the present invention is very simple, matches with the snap close with " S " curved surface through the round end dead bolt, has realized the purpose of opening the door release, laying the key under the door; Through being located in the tubular latch in the lock body, the locking mechanism that is arranged on the lock pin on the latch and matches with lock pin; Can lock by opposite house; Be about to the locking of round end dead bolt,, make its limit base stressed evenly round end dead bolt afterbody owing to adopted the lock pin of tubular; And, back-moving spring has been played good guide effect; In addition; Through being arranged on push rod on the latch, being arranged on the panel of the slide plate on the push rod and slide plate frame that matches with slide plate and middle part band display window; Make people outdoors just can confirm that through the content of observing display window nobody is arranged in the door on earth; Avoid the damage of maloperation door lock, thereby prolonged the application life of said door lock.

Description of drawings

Fig. 1 is a broken section structural representation of the present invention.

Fig. 2 is the partial structurtes sketch map that Fig. 1 overlooks direction.

Fig. 3 is the structural representation that Fig. 1 overlooks the panel of direction

Fig. 4 is the structural representation of medial surface of the side plate of slide plate frame.

Fig. 5 is a partial structurtes sketch map of looking up direction among Fig. 1.

Among Fig. 1 to Fig. 5: 1, lock body, 2, the round end dead bolt, 3, limit base, 4, back-moving spring, 5, latch, 6, panel; 61, display window, 7, the slide plate frame, 71, side plate, 711, chute, 72, fixed charge method end plate, 73, movable end plate; 8, slide plate, 81, push-rod hole, 9, push rod, 10, snap close, 11, lock pin; 12, journal stirrup, 13, hasp, 131, lockpin hole, 14, bearing pin, 15, base plate.

The specific embodiment

Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.

As shown in Figure 1; Automatic door lock of the present invention comprises: lock body 1 and snap close 10 are provided with round end dead bolt 2 and back-moving spring 4 in the inner chamber of lock body 1; The head movement of round end dead bolt 2 is located in the dead bolt hole of lock body 1 top end plate; The afterbody of round end dead bolt 2 is provided with and prevents that round end dead bolt 2 from skidding off the limit base 3 of lock body 1 inner chamber, and the interior diapire that an end of back-moving spring 4 is pressed on lock body 1 is that the other end of back-moving spring 4 is pressed on the limit base 3 on the medial surface of afterbody end plate of lock body 1; Offer the pin hole that matches with back-moving spring 4 on the afterbody end plate of said lock body 1; The movable latch 5 that is equipped with tubular in the pin hole, described back-moving spring 4 is housed in the hole of this latch 5, and the relative both sides of latch 5 outside lock body 1 are respectively arranged with lock pin 11 and push rod 9; On the described lock body 1 or the door that is used to install said automatic door lock be provided with the locking mechanism that matches with lock pin 11; As shown in Figure 5, its structure comprises: a pair of journal stirrup 12 is set in the hasp 13 on the lock shaft 14 with the bearing pin 14 and the end that are located in this a pair of journal stirrup 12, and the other end of hasp 13 offers the lockpin hole 131 that matches with lock pin 11; In the present embodiment, described a pair of journal stirrup 12 also is connected together through base plate 15; The end of said push rod 9 is provided with slide plate 8---and referring to shown in Figure 2, its set-up mode is: described slide plate 8 is provided with the push-rod hole 81 that matches with push rod 9, and insert in the push-rod hole 81 end of push rod 9; Be used to install on the lateral surface of door of said automatic door lock and also be embedded with the slide plate frame 7 that matches with slide plate 8; Slide plate frame 7 is provided with the panel 6 that the middle part has display window 61---referring to shown in Figure 3; Slide plate 8 is slidingly arranged in the slide plate frame 7; As shown in Figure 2; Described slide plate frame 7 is made up of the pair of side plates that is positioned at both sides 71, the movable end plate 73 that is positioned at the fixed charge method end plate 72 of an end and is positioned at the other end, offers the chute 711 that matches with slide plate 8 on the medial surface of side plate 71---and referring to shown in Figure 4, the medial surface of movable end plate 73 is provided with the chimb that matches with chute 711; The both sides side card of said slide plate 8 is located in the chute 711 of respective side panels 71; During installation, at first slide plate 8 is inserted in the chute 711 of pair of side plates 71 of slide plate frames 7, the chimb with movable end plate 73 inserts in the chute 711 of both sides side plate 71 then; Described snap close 10 is provided with the serpentine curved surface that the concave, convex curved surface by seamlessly transitting that matches with round end dead bolt 2 constitutes along the opening direction of door.

During use, when hasp 13 is in free state, through opening the door or closing the door; All can be with latch 5 toward pusher; Latch 5 drives slide plate 8 and moves to the direction away from lock body 1 in the process of retreating, and makes the indication that in the display window 61 of panel 6, shows " unmanned "; When closing behind the door, plug latch 5, be about to latch 5 and push away (can hold lock pin 11 and promote latch 5) forward, shift the position onto after, hasp 13 is fastened lock pin 11, at this moment, in the display window 61 of panel 6, show the indication of " people is arranged ".

Claims

1. automatic door lock; Comprise: lock body and snap close is characterized in that: be provided with round end dead bolt and back-moving spring in the said lock body inner chamber, the head movement of round end dead bolt is located in the dead bolt hole of lock body top end plate; The afterbody of round end dead bolt is provided with and prevents that the round end dead bolt from skidding off the limit base of lock body inner chamber; One end of back-moving spring is pressed on the interior diapire of lock body, and the other end of back-moving spring is pressed on the limit base, offers the pin hole that matches with back-moving spring on the said lock body afterbody end plate; The movable latch that is equipped with tubular in the pin hole; Described back-moving spring is housed in the hole of this latch, and the side of latch outside lock body is provided with lock pin, and described automatic door lock also includes the locking mechanism that matches with lock pin; Described snap close is provided with the serpentine curved surface that the concave, convex curved surface by seamlessly transitting that matches with the round end dead bolt constitutes along the opening direction of door.

2. automatic door lock according to claim 1; It is characterized in that: described locking mechanism comprises that a pair of journal stirrup and the bearing pin and the end that are located in this a pair of journal stirrup are set in the hasp on the lock shaft, and the other end of hasp offers the lockpin hole that matches with described lock pin.

3. automatic door lock according to claim 1 and 2; It is characterized in that: described latch opposite side with respect to lock pin outside lock body is provided with push rod; The end of push rod is provided with slide plate; Described automatic door lock also includes the slide plate frame that matches with slide plate, and the slide plate frame is provided with the panel that the middle part offers display window, and described slide plate slides is arranged in the slide plate frame.