CN201103297Y

CN201103297Y - In-opening door linkage lock of anti-knock door

Info

Publication number: CN201103297Y
Application number: CNU200720075488XU
Authority: CN
Inventors: 范祖良
Original assignee: SHANGHAI SENLIN SPECIAL TYPE STEEL DOOR CO Ltd
Current assignee: SHANGHAI SENLIN SPECIAL TYPE STEEL DOOR CO Ltd
Priority date: 2007-10-16
Filing date: 2007-10-16
Publication date: 2008-08-20
Anticipated expiration: 2017-10-16

Abstract

An antiknocking inside-unlocking blocking lock which is provided relates to an antiknocking unlocking-locking device and a blocking lock requiring convenient operation. The blocking lock comprises a tubular lock, an upper latch pin, a transverse latch pin and a lower latch pin of a door closer, an upper connecting rod and a lower connecting rod. The blocking lock is characterized in that the blocking lock consists of a lock body, a main link rod, a secondary link rod, a shift fork, a spring, a spring shaft and a handle; a mounting hole and a link rod hole are arranged at the two sides of the lock body, and a square pin roll hole is arranged at the middle part of the lock body; the main link rod is arranged at the upper part of a box cavity of the lock body; the main link rod is connected with the upper connecting rod; the transverse latch pin is arranged at the middle part of the upper connecting rod; the upper latch pin is arranged at the upper end of the upper connecting rod, and the main link rod is provided with a shift fork pocket; the secondary link rod is arranged at the lower part of the box cavity of the lock body; the secondary link rod is connected with the lower connecting rod, and the transverse latch pin is arranged at the middle part of the lower connecting rod; the lower connecting rod is connected with the lower latch pin, and the secondary link rod is provided with a shift fork pocket; the spring is embedded between the main link rod and the secondary rod, the spring shaft is sheathed in the spring, and the spring shaft is connected with the main link rod or the secondary link rod; a square hole is arranged at the middle part of the shaft fork; two ends of the shift fork are inserted into the shift fork grooves of the main link rod and the secondary link rod; the square pin roll of the tubular lock is connected with the handle of the blocking lock by passing through the square hole of the shift fork.

Description

Blast-resistant door inward blocking lock

Technical field:

The utility model relates to the unlatching-locking apparatus of blast-resistant door.

Background technology

Various explosive article are arranged in chemical industry, dangerous goods store, boiler room, store the common steel casement door of the former employing of external door of the building of explosives, only adorn general lockset on the door, this kind door and lockset can produce permanent deformation under the pressure effect of explosion wave, even structure is damaged fully.Use in the door of push rod lock for inward and open extremely inconvenience, a hand push push rod, another pulls handle could open door leaf, demands urgently improving.

Blast-resistant door must be installed door closer, makes door leaf that the trend of closing be arranged all the time, and after personnel entered or go out, door closer pulled to doorframe with door leaf, until the latch tongue of upper and lower, side three-dimensional simultaneously in overhanging insertion key seat hole.This door closer does not need the effect of natural amylopectin, and automatically with door locked.The unlatching-locking apparatus of blast-resistant door also should handiness.

The utility model content

The problem that the utility model need solve is to provide a kind of three-dimensional interlock latch inward blocking lock with self-closing function handiness for blast-resistant door.

The technical solution of the utility model comprises the employing hand holding lock, latch, horizontal latch, following latch on the door closer, and upper and lower connecting rod is characterized in that being equipped with lock body, master link, duplicate invoice bar, shift fork, spring, spring shaft, handgrip composition blocking lock; Lock body is the box-like body of a prolate shape, and the two ends of box-like body are respectively equipped with installing hole and link rod hole, and there is the square cotter axis hole at the middle part of box-like body; Top, the box chamber dress master link of lock body, the link rod hole that the lock case chamber is stretched out on master link top is connected with last connecting rod, adorns horizontal latch in the middle of the last connecting rod, and last small end connects goes up latch, and the master link bottom is shaped on fork slot, and master link can be along the box chamber longitudinal sliding motion of lock body; Bottom, the box chamber dress duplicate invoice bar of lock body, the link rod hole that the lock case chamber is stretched out in duplicate invoice bar bottom is connected with lower link, adorns horizontal latch in the middle of the lower link, and the lower link lower end connects latch down, and duplicate invoice bar top is shaped on fork slot, and the duplicate invoice bar can be along the box chamber longitudinal sliding motion of lock body; Spring vertically is embedded between master link and the duplicate invoice bar, and spring shaft is enclosed within the spring, and spring shaft has an end to be connected with master link or duplicate invoice bar; There are square hole, shift fork two ends to stretch into the fork slot of master link, duplicate invoice bar respectively in the middle of the shift fork; The square hole that the square cotter axle of hand holding lock passes in the middle of the shift fork is connected with the handgrip of blocking lock.

The utility model is when opening the door, can in the handle of using hand holding lock outdoors or door, rotate the square cotter axle by the handgrip of blocking lock, the square cotter axle then drives shift fork and stirs master link and duplicate invoice bar, master link moves downward, the duplicate invoice bar moves upward, and makes the upper and lower connecting rod that connects master link and duplicate invoice bar respectively drive upper and lower, side latch and leaves pin tongue hole, can open door, the self-closing function that had both kept blast-resistant door reaches the effect of handiness again.

Description of drawings

What Fig. 1 represented is inward blocking lock structural representation;

What Fig. 2 represented is inward blocking lock handgrip and square cotter axle assembling schematic diagram;

Fig. 3 represents inward blocking lock installation signal (side-looking) figure;

Fig. 4 represents inward blocking lock installation signal (main looking) figure.

The specific embodiment

The utility model adopts hand holding lock 12, latch 15, horizontal latch 17, following latch 16 on the door closer, last connecting rod 18, lower link 21, (Fig. 3,4), and be equipped with lock body 1, master link 2, duplicate invoice bar 4, shift fork 3, spring 6, spring shaft 5, handgrip 8 (Fig. 1,2) composition blocking lock 13 (Fig. 3); Lock body 1 is the box-like body of a prolate shape, and the two ends of box-like body are provided with installing hole and link rod hole, and there is the square cotter axis hole at the middle part of box-like body; Top, the box chamber dress master link 2 of lock body 1, the link rod hole that lock body 1 box chamber is stretched out on master link 2 tops is connected with last connecting rod 18, adorns horizontal latch 17 in the middle of the last connecting rod 18, and last connecting rod 18 upper ends connect goes up latch 15, master link 2 bottoms are shaped on fork slot, and master link 2 can be along the box chamber longitudinal sliding motion of lock body 1; Bottom, the box chamber dress duplicate invoice bar 4 of lock body 1, the link rod hole that lock body 1 box chamber is stretched out in duplicate invoice bar 4 bottoms is connected with lower link 21, adorns horizontal latch 17 in the middle of the lower link 21, and lower link 21 lower ends connect latch 16 down, duplicate invoice bar 4 tops are shaped on fork slot, and duplicate invoice bar 4 can be along the box chamber longitudinal sliding motion of lock body; Spring 6 vertically is embedded between master link 2 and the duplicate invoice bar 4, and spring shaft 5 is enclosed within the spring 6, and spring shaft 5 has an end to be connected with master link 2 or duplicate invoice bar 4; In the middle of the shift fork 3 square hole is arranged, the fork slot of master link 2, duplicate invoice bar 4 is stretched at shift fork 3 two ends respectively; The square hole that the square cotter axle 14 of hand holding lock passes in the middle of the shift fork 3 is connected with the handgrip 8 of blocking lock.Opened the door 10 o'clock, downward turn handle or handgrip 8 are by the fork 3 of square cotter axle 14 drive blocking locks, master link 2 is moved downward, and duplicate invoice bar 4 moves upward, drivening rod, upper and lower, side latch, make the latch tongue leave pin tongue hole, can open door 10, reach the effect of conveniently opening the door.

Claims

1. blast-resistant door inward blocking lock comprises the employing hand holding lock, latch, horizontal latch, following latch on the door closer, and upper and lower connecting rod is characterized in that joining lock body, master link, duplicate invoice bar, shift fork, spring, spring shaft, handgrip composition blocking lock; Lock body is the box-like body of a prolate shape, and the two ends of box-like body are respectively equipped with installing hole and link rod hole, and there is the square cotter axis hole at the middle part of box-like body; Top, the box chamber dress master link of lock body, the link rod hole that the lock case chamber is stretched out on master link top is connected with last connecting rod, adorns horizontal latch in the middle of the last connecting rod, and last small end connects goes up latch, and the master link bottom is shaped on fork slot, and master link can be along the box chamber longitudinal sliding motion of lock body; Bottom, the box chamber dress duplicate invoice bar of lock body, the link rod hole that the lock case chamber is stretched out in duplicate invoice bar bottom is connected with lower link, adorns horizontal latch in the middle of the lower link, and the lower link lower end connects latch down, and duplicate invoice bar top is shaped on fork slot, and the duplicate invoice bar can be along the box chamber longitudinal sliding motion of lock body; Spring vertically is embedded between master link and the duplicate invoice bar, and spring shaft is enclosed within the spring, and spring shaft has an end to be connected with master link or duplicate invoice bar; There are square hole, shift fork two ends to stretch into the fork slot of master link, duplicate invoice bar respectively in the middle of the shift fork; The square hole that the square cotter axle of hand holding lock passes in the middle of the shift fork is connected with the handgrip of blocking lock.