Unlock instant, AI-driven research and patent intelligence for your innovation.

Double lock for door

A technology for double locks and doors, used in building locks, devices that prevent keys from being removed from locks, keys, etc., which can solve the problems of complicated installation work, dependent installation, and troublesome keys.

Inactive Publication Date: 2005-09-28
酒井 信世
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, multiple keys must be carried, and troubles caused by forgetting to carry or losing a part of the keys often occur, so it cannot be widely used.
[0004] In addition, when this double lock is fixed on the door of the building, holes must be drilled on the door, and fastening devices such as screws will be installed. Generally speaking, as a door with two locks, due to the work of installing another lock It is common, and there are difficulties such as the need to use many special processing tools and complicated installation operations, so it must be installed by the construction unit

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Double lock for door
  • Double lock for door
  • Double lock for door

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] figure 1 is a partial perspective view of the door, figure 2 It is an exploded perspective view of a split fixed member for a double lock, image 3 An exploded perspective view of the double lock, Figure 4 It is a side view of the state where the double lock is attached to the door, Figure 5 is a side view of the lifting mechanism of the first lock, Figure 6 Perspective view of two keys integrated for a double lock.

[0016] exist figure 1 Among them, a handle 2 and a double lock consisting of a physically strong first lock 3 and a tamper-resistant second lock 8 are installed on the door 1 . The latch 4 is moved in and out by the operation of the first lock. The keyhole 3a of the first lock 3 is covered with a cover 7 attached so as to be openable and closable. When opening the door 1, first put the second key 9 into the keyhole of the second lock 8, open the cover 7, then insert the first key 5 into the keyhole 3a of the first lock 3, pull the latch 4 in, an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A double lock for a door comprises an opening and closing cover to cover a key hole in a first lock on the door, and the cover is opened by a second lock. Right and left fixing members(14) are set from both sides to be installed and fixed by bolts to a neck part of the first lock installed on the door. A second box frame is fixed to the fixing members around the bolts through coil springs, and a first box frame and a base member of the second lock are fixed on the second box frame by long bolts reaching the fixing members to form integrally. The fixing members are moved up and down to first and second box frames by the coil springs, and a first lock main body is moved up and down to a first lock cover by the springs. Two sorts of keys to open and close the first lock and the second lock are integrated with each other.

Description

technical field [0001] The present invention relates to double locks on doors of buildings. Background technique [0002] As a lock on a door of a building, various forms of locks have been proposed and used. [0003] The technology of picking locks without regular keys has developed along with the complex structure of locks and the emergence of new locks. No matter what kind of lock it is, it is virtually impossible to completely prevent theft. Therefore, proposed by adorning more than two locks on a door, and make the time that does not need normal key to unlock the required length as long as possible and prevent the scheme of crime. It is generally called one door and two locks. However, a plurality of keys must be carried, and troubles caused by forgetting to carry or losing a part of the keys often occur, so it cannot be widely used. [0004] In addition, when this double lock is fixed on the door of the building, holes must be drilled on the door, and fastening devi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): E05B17/18E05B15/00E05B19/14E05B35/08E05B35/12E05B63/00E05B63/14
CPCE05B13/001E05B15/102E05B17/2003E05B19/14
Inventor 酒井信世
Owner 酒井 信世