CN201103295Y

CN201103295Y - Automatic lock for rolling door

Info

Publication number: CN201103295Y
Application number: CNU2007200816320U
Authority: CN
Inventors: 代志巍
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-23
Filing date: 2007-10-23
Publication date: 2008-08-20
Anticipated expiration: 2017-10-23

Abstract

The utility model relates to a rolling door instant lock, which comprises a lock box body, a lock box cover, a tapered end, a bolt and a connecting card. A circular ring piece is fixedly arranged at the connecting card, a circular ring section is arranged at the outer circle of the circular ring piece, a fixing plate, a carrier rod and a carried rod spring are arranged in the lock box body; A sliding chute is arranged at the upside of the fixing plate; an elbow is arranged at the upper end of the carrier rod; the lower end of the carrier rod is extruded out the lock box body; the elbow can contact the circular ring section by passing through the sliding chute; the lower end of the sliding chute is provided with a center position which is higher than the circular ring piece; one end of the carrier rod spring is fixed at the lock box body while the other end thereof is fixed at the carrier rod. The rolling door instant lock has the advantages of simple and compact structure, convenient use and installation, reliable locking, low cost, automatic closing and no damage to the doorframe and the lower wall of the rolling door.

Description

The rolling door automatic locking

Technical field

The utility model relates to a kind of door lock, particularly relates to a kind of rolling screen door lock that can close automatically.

Background technology

At present, critical pieces such as the dead bolt that the frequent rolling screen door lock that uses is distributed by lock box body, lock box cover, tapered end, bilateral symmetry, locking bolt are formed, and this lock only needs rolling door is left behind, and under the effect of spring, the locking bolt two ends are stretched into body of wall automatically and got final product, and are easy to use.But this being locked in when opening the door, locking bolt is being resisted against under the effect of spring on the roller shutter doorframe inwall tightly, and during the switch rolling door, the end of locking bolt scratches the roller shutter doorframe easily.People often adopt the method that adds pulley in the end of locking bolt to solve the problem that the switch rolling door is required great effort, this method complex structure, and the cost height, pulley is perishable, and difficulty is installed, and uses inconvenience, and uses for a long time and damage the roller shutter doorframe easily, and effect is bad.

Summary of the invention

The purpose of this utility model be to provide one one simple in structure, easy to use, close automatically, to the undamaged rolling door automatic locking of roller shutter doorframe sidewall.

Technical solution of the present utility model is:

A kind of rolling door automatic locking comprises lock box body, dead bolt, Connection Card, lock box cover, tapered end, fixes a circular ring plate on the described Connection Card, and a ring cross-section is set on the excircle of circular ring plate; In the lock box body, be provided with fixed head, push rod and push rod spring, a chute is set on the described fixed head, an elbow is set in the upper end of push rod, the bottom of lock box body is stretched out in its lower end, elbow passes chute and can contact with ring cross-section, the lower end position of chute is higher than the center of circular ring plate, and an end of push rod spring is fixed on the lock box body, and the other end is fixed on the push rod.

Be provided with packing ring between described tapered end and the circular ring plate; A gathering sill is set on the described fixed head, and the lower end of push rod penetrates gathering sill.

Because the utility model has adopted circular ring plate on Connection Card, circular ring plate is provided with ring cross-section, adopted push rod, push rod upper end one elbow can contact with ring cross-section, when locking unlatching, dead bolt breaks away from body of wall with locking bolt, and the elbow on the push rod blocks ring cross-section top, make dead bolt not apply power to roller shutter doorframe diapire, so can not produce damage, when closing rolling door, only need it is left behind to it, when the lower end of push rod kiss the earth, push rod moves upward with respect to lock case, and elbow and ring cross-section are broken away from, and then dead bolt is under the effect of spring, automatically stretch into body of wall, reach the purpose of locking voluntarily.So it is the utility model is simple in structure, easy to install and use, reliable, cost is low, long service life.

The utility model can be provided with a packing ring between tapered end and circular ring plate, spontaneous or a gathering sill is installed on fixed head reducing friction, and helps the push rod reliable operation.

Description of drawings

Fig. 1 is the main sectional view of the utility model when lock cuts out;

Fig. 2 is the main sectional view of the utility model when lock is opened;

Fig. 3 is a front view of the present utility model;

Fig. 4 is that the utility model circular ring plate cooperates schematic diagram with push rod.

Be labeled as among the figure: 1-lock box body, 2-dead bolt, 3-latch bolt spring, 4-deep-slotted chip breaker, 5-Connection Card, 6-dop, 7-elbow, 8-circular ring plate, 9-ring cross-section, 10-lock core, 11-rake tooth, 12-fixed leg, 13-push rod, 14-fixed head, 15-bolt, 16-chute, 17-lock box cover, 18-tapered end, 19-lock core hole, 20-push rod spring, 21-gathering sill, 22-packing ring.

Specific embodiments

Shown in Fig. 1-2, the utility model rolling door automatic locking comprises lock box body 1, dead bolt 2, Connection Card 5, lock box cover 17, tapered end 18, dead bolt 2 is provided with symmetrically, stretch into each dead bolt 2 respectively from the both sides of lock box body 1 and have deep-slotted chip breaker 4, the dop 6 at Connection Card 5 two ends is inserted in respectively in the deep-slotted chip breaker 4, a spring 3 is set on each dead bolt 2 links to each other with lock box body 1.On Connection Card 5, fix a circular ring plate 8, also can Connection Card 5 and circular ring plate 8 systems is as a whole, the excircle of circular ring plate 8 is clipped one, forms ring cross-section 9.2 fixed legs 12 are set in lock box body 1, as shown in Figure 3, with bolt 15 and fixed leg 12 fixed head 14 are fixed on the lock box body 1, the top of fixed head 14 is provided with chute 16.A push rod 13, its top is provided with elbow 7, the bottom of lock box body 1 is stretched out in its underpart, elbow 7 stretches into chute 16, can in chute 16, move up and down, the part that elbow 7 passes fixed head 14 can contact with ring cross-section 9, is fixed on the push rod 13 with an end of a push rod spring 20, and the other end is fixedlyed connected with lock box body 1.

Tapered end 18 passes lock box cover 17 and is fixed on the fixed head 14, and the lock core 10 on the tapered end 18 is offset flat shape, extend in the circular hole of Connection Card 5 to contact with rake tooth 11.

During unlatching, key is stretched in the lock core hole 19, along clockwise rotating, then Connection Card 5 draws in lock box body 1 dead bolt 2 then that dead bolt 2 withdraws from from body of wall, at this moment rolling door is upwards mentioned, push rod 13 under resetting pulling, push rod spring is moved downward, then the elbow 7 on the push rod 13 is positioned at 16 ends of chute, and the position of bottom land 16 is higher than the center of circular ring plate 8, and then elbow 7 props up ring cross-section, so rolling door is when pulling on or leave behind, dead bolt 2 can not produce the effect of pressure to the roller shutter doorframe.

When locking, rolling door is pulled down, when push rod 13 conflict ground, then push rod 13 is moved up with respect to lock box body 1, elbow 7 breaks away from ring cross-section 9, and then under the reset response of latch bolt spring 3, dead bolt 2 stretches into body of wall again, reaches the purpose of automatic blocking.

As shown in Figure 4, on fixed head 14, be provided with or a spontaneous gathering sill 21, can use the work of push rod 13 more reliable, a packing ring 22 is set between tapered end 18 and circular ring plate 8, can reduce friction.

Claims

1, a kind of rolling door automatic locking, comprise lock box body (1), dead bolt (2), Connection Card (5), push rod (13), fixed head (14), lock box cover (17), tapered end (18), it is characterized in that: fix a circular ring plate (8) on the described Connection Card (5), a ring cross-section (9) is set on the excircle of circular ring plate (8); In lock box body (1), be provided with fixed head (14), push rod (13) and push rod spring (20), a chute (16) is set on the described fixed head (14), in the upper end of push rod (13) elbow (7) is set, the bottom of lock box body (1) is stretched out in its lower end, elbow (7) passes the center that lower end position that chute (16) can contact chute (16) with ring cross-section (9) is higher than circular ring plate (8), one end of push rod spring (20) is fixed on the lock box body (1), and the other end is fixed on the push rod (13).

2, rolling door automatic locking according to claim 1 is characterized in that: be provided with packing ring (22) between described tapered end (18) and the circular ring plate (8).

3, rolling door automatic locking according to claim 1 is characterized in that: a gathering sill (21) is set on the described fixed head (14), and the bottom of push rod (13) penetrates gathering sill (21).