Remote-controlled door lock

Details Remote-controlled door lock Remote-controlled door lock

2002-07-01

2003-11-11

Gall, Lloyd A. (Department: 3676)

Locks

Special application

For closures

C070S257000, C070S278700, C070S279100, C070S283000

Reexamination Certificate

active

06644072

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a remote-controlled door lock, particularly to one provided in a lock shell with two electromagnetic valves able to be controlled by a remote controller to operate relatively and actuate a deadbolt to move to a limited position, with a door lock impossible to be unlocked only by a key before it is relieved by a remote controller, thus achieving a best effect of anti-theft.
2. Description of the Prior Art
A conventional door lock, as shown in
FIG. 1
, includes a lock shell
10
installed with a lock base
11
inside. The lock base
11
is provided at one side with lock rods
110
able to extend out of the through hole
100
on the sidewall of the lock shell
10
. The lock base
11
is further provided with a lock core
111
with a keyhole respectively at the inner and the outer side. Then, a pull plate
12
is fitted in the inner side surface of the lock shell
10
, having a fixing plate
120
inserted in the slide hole
101
of the lock shell
10
and facing the fixing plate
102
of the lock shell
10
. The lock shell
10
is further installed inside with a deadbolt
13
having one end inserted through the fixing plate
102
of the lock shell
10
and secured with the fixing plate
120
of the pull plate
12
, with a spring fitted around one end of the door bolt
13
near the pull plate
12
. The deadbolt
13
has the other end fixed with a stopper
131
able to extend out of the through hole
103
in the sidewall of the lock shell
10
. Thus, when a key is inserted in the keyhole
112
of the lock core
111
and turned around to force the lock rods
110
and the stopper
131
to move inward toward the lock shell
10
, the door lock can be unlocked.
However, a conventional door lock is to have its lock rods
110
locked only by a key so it can easily be pried unlocked with some unlocking tools, having bad effect of anti-theft.
SUMMARY OF THE INVENTION
The objective of the invention is to offer a remote-controlled door lock having good effect of anti-theft.
The feature of the invention is that a lock shell is installed inside with a battery base, a circuit board, a deadbolt and two electromagnetic valves. The deadbolt is bored with a through hole connected sidewise to a slide slot with a smaller breadth than the diameter of the through hole. The two electromagnetic valves are respectively positioned on and under the deadbolt, and the electromagnetic valve on the deadbolt is provided with a downward valve rod having a stopper on the end, with the valve rod and the stopper inserted through the through hole of the deadbolt, while the electromagnetic valve under the deadbolt is provided with a lateral valve rod having a blocking plate at the outer end for stopping and holding the stopper of the electromagnetic valve on the door bolt.


REFERENCES:
patent: 2765648 (1956-10-01), Hatcher
patent: 4784415 (1988-11-01), Malaval
patent: 5216909 (1993-06-01), Armoogam
patent: 5588318 (1996-12-01), Osborne
patent: 5943888 (1999-08-01), Lawson
patent: 6462431 (2002-10-01), Woo

Affiliated with

Also associated with

Rating

Remote-controlled door lock does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Remote-controlled door lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Remote-controlled door lock will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3169177