Lock with safety chain
A technology of safety buckle and safety chain, which is applied in the direction of building locks, wing leaf fastening devices, building fastening devices, etc., which can solve problems such as troublesome, uncontrollable, and aesthetically pleasing installation structures, and achieve convenient and simplified use The steps and structure are simple and beautiful
Inactive Publication Date: 2010-02-03
吴斐
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Problems solved by technology
But single door lock device also has some inconveniences in some occasions, for example, when someone knocks on the door or rings the doorbell, as long as the people in the room opens the door, the people outside can enter the room. Then it is uncontrollable; for another example, in some high-end hotels, the waiter needs to unlock the door lock and deliver items such as newspapers to the tenant, but the tenant does not want the door to be fully opened; in a situation similar to the above, it is necessary to install a A buckle device to solve, most of today's buckle devices are like figure 1 As shown, in addition to the door lock device A, a catch device B is additionally installed on the door and the door frame. Although this device can solve the above-mentioned problems, the separate installation of the door lock device A and the catch device B The structure is cumbersome to use, and two steps are required to open each device separately, which are not related to each other, and this split installation structure also affects the appearance
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[0016] as attached Figure 1 to Figure 5 As shown, the present invention includes a door lock body 10 installed on the door and a deadbolt 11 on the door lock body 10 , and a safety buckle chain device 20 is also installed in the door lock body 10 . The safety buckle chain device 20 includes a safety chain 21 and a buckle 22, the safety chain 21 is installed in the lock case 12 of the door lock body 10, and the safety chain 21 includes a spring fixed in the lock case 12 211, the chain 212 that is connected with spring 211 and the buckle 213 that is fixedly connected at the end of chain 212, on the side panel 121 of lock case 12, have the chain hole 122 that pulls out for safety chain 21, during natural state, buckle 213 is located outside the chain hole; the hanging buckle 22 matched with the buckle bead 213 is fixedly installed on the door frame or wall corresponding to the safety chain 21 . The hanging buckle 22 corresponding to the safety chain 21 in the door lock body 10 ...
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This invention relates to lock technique and to one gate lock with safety cover linkage, which comprises door lock body and lock part tongue fixed on door and one safety linkage device on body, wherein, by adopting above structure, the indoor persons only press down hook key to cover; when there is person open from outdoor or indoor, the door opening can fulfill coverage; when needing to open safety linkage, then pressing hook key to open door.
Description
technical field [0001] The invention relates to the technical field of locks, in particular to an easy-to-use door lock with a safety buckle chain. Background technique [0002] With the development of science and technology and the improvement of people's quality of life, various door locks to ensure safety emerge in endlessly. But single door lock device also has some inconveniences in some occasions, for example, when someone knocks on the door or rings the doorbell, as long as the people in the room opens the door, the people outside can enter the room. Then it is uncontrollable; for another example, in some high-end hotels, the waiter needs to unlock the door lock and deliver items such as newspapers to the tenant, but the tenant does not want the door to be fully opened; in a situation similar to the above, it is necessary to install a A buckle device to solve, most of today's buckle devices are like figure 1 As shown, in addition to the door lock device A, a catch d...
Claims
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IPC IPC(8): E05B17/00E05C17/36
Inventor 吴斐
Owner 吴斐