CN2045768U

CN2045768U - Spring lock for double-door

Info

Publication number: CN2045768U
Application number: CN 88220003
Authority: CN
Inventors: 王海全
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-11-16
Filing date: 1988-11-16
Publication date: 1989-10-11

Abstract

The utility model discloses a door lock, in particular to a latch lock for a double-door, which is characterized in that a fastening block which is controlled by a key or a handle is arranged in an auxiliary lock; a dead bolt with a slot, which is on a main lock, can be tightly fastened in the auxiliary lock after extending into the auxiliary lock. The utility model has the advantages of simple structure, convenient operation, and multifunction. The latch lock for the double-door which has the functions of opening, locking, and deadlocking is suitable for a double-door or a single door.

Description

Spring lock for double-door

The utility model is a kind of door lock, particularly relates to the latch that double door uses.

The latch that existing double door uses, the structure more complicated is as the described double door latch of Chinese patent 86206402U complex structure, cost height.

The purpose of this utility model is to provide a kind of simple in structure, easy to use, reliably.Can be used for single door, more be applicable to the latch that double door uses.

The purpose of this utility model is to realize like this, main lock and secondary lock are housed respectively on two fan doors, in main lock, a control panel that dead bolt is housed is arranged, the dead bolt both sides are protruding garden cambered surface, have rectangular channel above the dead bolt, dead bolt stretches out main lock housing body under spring action, dead bolt can be in main handle control withdrawal of locking, relatively rotating in the time of also can fanning the door open and close by two.Secondary lock housing body acts on power on the arc of protruding garden, dead bolt side, and dead bolt is pushed up back.In the pair lock, one frame fixture block frame is arranged, fixture block frame one end is equipped with fixture block, and can rotate around a dead axle, the outer unlatching mechanism that the outer flap with an eccentric little axle that is rotated by key core control by door one side at the fixture block frame is formed, in interior unlatching and the insurance institution that fixture block frame opposite side is made up of an interior flap with an eccentric little axle that is rotated by handle control, when locking a door, dead bolt stretches in the secondary lock, and with fixture block jack-up in the pair lock, and fixture block is entered above the dead bolt in the rectangular channel, door lock is dead, when opening the door, by opening mechanism, control fixture block frame ejects fixture block on dead bolt in the groove, and door can be opened.

Below in conjunction with accompanying drawing the utility model is described in detail:

Fig. 1 is the utility model structural representation.

Fig. 2 is the sectional view of bowing of Fig. 1.

Referring to accompanying drawing, close in front of the door, the main dead bolt of locking 6 stretches out main lock housing body 14, at closing time, secondary lock housing 13 acts on the power on the arc of protruding garden, dead bolt 6 sides, dead bolt 6 is pushed up back, after door shuts, dead bolt 6 stretches in the secondary lock housing 13 from the lock-tongue port on the secondary lock housing 13, because dead bolt 6 ramp effects are earlier with fixture block 5 jack-up, then under spring leaf 4 effects, fixture block 5 enters in the groove above the dead bolt 6, and dead bolt 6 is stuck in the pair lock.

When opening the door, as indoor, handle 16 is clockwise rotated 90 °, interior flap 3 rotates 90 ° thereupon, and at this moment bearing pin 2 opens the door the groove (as accompanying drawing 1 dotted line position) that fixture block 5 ejects above the dead bolt 6 by fixture block frame 1, secondary lock housing 13, act on the power on the arc of protruding garden, dead bolt 6 sides, dead bolt 6 is pushed up back, door is opened.

When opening the door, as outdoor, key drives outer flap 11 rotations by key core 10, and bearing pin 12 can be opened fixture block 5 jack-up with door.

When not using latch, turning handle 15, by control panel 7, compression spring 8 makes dead bolt 6 withdrawals, and is stuck in the main lock housing body 14.

When needing insurance, handle 16 is changeed 90 ° counterclockwise, interior flap 3 rotates thereupon, and bearing pin 2 withstands the fixture block frame, and at this moment key can not be opened latch outdoor.

The utility model is easy to use, and is reliable, makes simply, and cost is low, can be used for univalve door, is applicable to that more bivalve door uses.

Claims

1, the utility model is a kind of door lock, particularly relates to the latch that double door uses, by retaining mechanism, and insurance institution, opening mechanism is formed, and it is characterized in that retaining mechanism is by the main dead bolt of locking with pay a rectangle fixture block of locking and form.

2, latch according to claim 1 is characterized in that described dead bolt is that a both sides is a protruding garden cambered surface, has groove above, and the cross section is a rectangle.