CN2246180Y

CN2246180Y - Door lock bolt device

Info

Publication number: CN2246180Y
Application number: CN 96202462
Authority: CN
Inventors: 章维明
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 1996-01-25
Filing date: 1996-01-25
Publication date: 1997-01-29
Anticipated expiration: 2006-01-25

Abstract

The utility model relates to a bolt device of a door lock. In a bolt case, a bolt head, a pressure spring, a swing link which is installed on a rivet and can rotate and a slide block which moves from left to right along the bolt case are arranged in a bolt case from left to right; the other end of the slide block is provided with a groove and is inserted into a groove of a driving seat, which is provided with a square hole; the other end of the slide block is contacted with the cross section of a driving seat in a way of the end face of a cam. Because the driving seat is installed in the bolt case, the driving seat can be freely driven to rotate by a square rod of a handle of a door lock to cause the bolt head to move from left to right; at the time, a locking mechanism can be installed on the handle and the door is locked; the utility model is suitable for various square rod type door locks with a spherical handle.

Description

A kind of door lock locking device

The utility model relates to a kind of parts relevant with door lock.

The door lock locking device is a vitals of spherical door lock, and in the lock bolt of present production of the same type, the unlatching of plunger latch head is by the rotation that directly is fixed on the oval arc bar on the door locking handle, promotes slide block and moves the unlatching of carrying out plunger latch head.Because structural restriction, making does not have lockable mechanism on this door locking handle, so door can not be locked, it can only play an effect of closing door, this spherical door lock only is applicable to indoor house door, kitchen door and lavatory door, and uses on some other inlet/outlet that need not lock.

The purpose of this utility model is: employing suit on the square bar of door locking handle has the drive sleeve of edge cam, can open the door lock locking device of plunger latch head, can solve the problem that exists in the background technology.

The technical solution of the utility model is: it is included in the lock crossbar box and from the right side, a left side plunger latch head is housed, stage clip, be contained in the fork that can rotate on the rivet, can be along the slide block of lock crossbar box move left and right, on the other end of slide block, have groove, and have in the middle of inserting in the groove of retainer of square hole, contact for the edge cam face with the retainer cross section, when rotating in the square hole of the insertion of the square bar on door locking handle retainer, can make the plunger latch head move left and right

The utility model is compared with background technology, the useful effect that has is: be installed in the lock crossbar box owing to have the retainer of square hole, the square bar on the door locking handle can freely drive transmission, makes the plunger latch head move left and right, at this moment can adorn lockable mechanism on the handle, door is locked.It is applicable to the door lock of various square bar formula balanced handles.

The utility model will be further described below in conjunction with accompanying drawing

Fig. 1, structural representation of the present utility model;

The assembling drawing of Fig. 2, retainer and slide block;

The A-A sectional view of Fig. 3, retainer and slide block

As Fig. 1, Fig. 2, shown in Figure 3, (being generally 7/8 in "); from the right side, a left side plunger latch head 1 is housed; stage clip 3; be contained in the fork 4 that can rotate on the rivet 5, can has groove 7 on the other end of slide block 6 along the slide block 6 of lock crossbar box 2 move left and right; and have in the middle of inserting in the groove 9 of retainer 8 of square hole, is that edge cam face (retainer has the hatching part among Fig. 1, Fig. 2) contacts with retainer 8 cross sections at lock crossbar box 2.When doing clockwise in the square hole of the insertion of the square bar on door locking handle retainer 8 or rotating counterclockwise, the edge cam of slide block 6 end faces and retainer 8 contacts at d ' or d point, the rotation of edge cam, slide block 6 is moved to the left along lock crossbar box 2 inwalls, fork 4 rotates counterclockwise around rivet 5, fork 4 one ends contact with slide block at the B point, fork 4 other ends contact with the plunger latch head end at the C point, promoting plunger latch head 1 moves right, slide block 6 is moved to the left, and makes in the plunger latch head 1 stage clip 3 compressions on the left side with slide block 6, loosens door locking handle, because the restoring force of stage clip 3 resets plunger latch head 1 and slide block 6.

Claims

A kind of door lock locking device, it is included in the lock crossbar box [2], plunger latch head [1] is housed from the right side, a left side, stage clip [3], be contained in rivet [5] and go up the fork [4] that can rotate, can be along the slide block [6] of lock crossbar box [2] move left and right, feature of the present utility model is: have groove [7] on the other end of slide block [6], and have in the middle of inserting in the groove [9] of retainer [8] of square hole, contact for the edge cam face with retainer [8] cross section.