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Primary and secondary locks

A kind of lock core technology, which is applied in cylinder pin locks, building locks, locks with turning keys, etc., to achieve the effect of simple design and assembly procedures

Inactive Publication Date: 2004-12-08
沈明德
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen that the above-mentioned commonly used articles still have many shortcomings, which are not really a good design, and need to be improved urgently.

Method used

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  • Primary and secondary locks
  • Primary and secondary locks
  • Primary and secondary locks

Examples

Experimental program
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Embodiment Construction

[0021] Please refer to Figure 1 and Figure 2A , shown in B and C, the mother-in-law lock provided by the present invention mainly includes:

[0022] A lock core 1 is hollow, and has several sockets 11 on its top surface, and a slot 12 on one side thereof, and a groove 13 is provided on the position close to the rear end of the lock core 1;

[0023] The anti-rotation pieces 2-5 of the lock core are inserted in the socket 11 of the lock core 1, so that the end can protrude from the lock core 1, and the driving end 21-5 is arranged in the middle of the lock core anti-rotation pieces. twenty four;

[0024] A lock core positioning plate 6 is provided with a hole 61 on both sides of the back side for accommodating the compression spring 62; the lock core positioning plate 6 is inserted into the slot 12 of the lock core 1;

[0025] A lock body 7, the upper, lower, left and right sides of the lock body 7 are respectively provided with a slot 71, and a groove 72 is provided on the in...

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Abstract

A set of locks can be unlocked by a key for each lock and a super-key can unlock the whole set of locks. Like the common lock, a key can unlock one instead of those of the set of locks by driving its core in rotation. However, the super-key can unlock all the locks of the set of locks. A rotation stopper can be driven to two positions to unlock, one position is by a key and another is by the super-key.

Description

technical field [0001] The invention relates to a master lock, in particular to a master lock which uses a key to push different parts of the anti-rotation plate of the lock core to achieve multi-stage control of the opening of the lock. Background technique [0002] Generally, each room on each floor of a hotel needs to be cleaned every day. If the cleaner needs to use a separate key to open each room, it will be very troublesome. Therefore, door locks with dual keys have been developed. The master key can open all the door locks of the same group. However, the current design only adopts pre-increasing the number of steel ball receiving slots, and then vacating some different steel ball slots between the respective locks to form a certain combination to generate a group of master keys to open the same group of locks. This design needs to waste the space of the lock body, and the number of combinations is also limited. And it is more troublesome than ordinary locks in desi...

Claims

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Application Information

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IPC IPC(8): E05B29/02
Inventor 沈明德
Owner 沈明德
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