Coin-operated combination lock

Abstract

The invention discloses a coin-feed coded lock which comprises a lock head, a switch lock mechanism matched with the lock head to unlock a door, a decoding mechanism, a rotary disc and a coin-feed box, wherein the lock head comprises a lock cylinder and a lock case sleeved on the lock cylinder; the coin-feed box is assembled on the decoding mechanism and is provided with a coin slot through which coins are fed into the decoding mechanism; the rotary disc is connected with the lock case; the decoding mechanism comprises multiple coil containing grooves; a first ejector pin is arranged at the end, which is close to the switch lock mechanism, of each coil containing groove; the rotary disc comprises multiple elastic telescopic second ejector pins; each first ejector pin and a corresponding second ejector pin are butted with each other and are used for overcoming the elastic force to axially move to the direction of the rotary disc when being extruded by the fed coins; the length of the first ejector pin in each coil containing groove is set to be in the same plane with an interface butted with the second ejector pin after the first ejector pin is subjected to preset coin-feed extrusion, so that the lock head can be reversed to drive the rotary disc to rotate and the switch lock mechanism opens and locks the door when the coins are fed accurately. The coin feed serves as an unlocking password and becomes a second unlocking mode, so that the lock can be conveniently unlocked even if a user does not have a key, and the coin-feed coded lock is safe and reliable.

Description

technical field [0001] The invention relates to a lock, in particular to a coin-operated combination lock. Background technique [0002] In people's daily life, locks are one of the necessary articles for family portals. At present, there are many kinds of locks, such as anti-theft locks, combination locks, electronic locks and so on. However, the majority of householders who only use the key to unlock the lock have encountered the experience of being turned away by their own gate because they did not bring the key. At this time, there are only two safe options: 1. Either ask a professional unlocker to unlock the lock, or 2. Wait for other family members to deliver the key. No matter which of these two options, you need to wait for someone, which causes a waste of time. Lockpicking adds to the waste of money. Waiting can easily breed anxiety or worry. Under anxiety, most people tend to avoid these two security options and choose to climb over to enter the house. There ...

AI Technical Summary

Problems solved by technology

[0004] In view of this, it is necessary to provide a coin-operated combination lock that can greatly facilitate the user to unlock at any time, the password selection is convenient and can be replaced in time, so as to solve the inconvenience that may be caused by not having a key in the prior art, and avoid complicated The structural form of the electronic combination lock and the high cost limit the application

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