A piano lock mechanism

Abstract

The invention discloses a piano lock mechanism. The piano lock mechanism includes a lock head structure embedded in a front top cover (1), a lock seat structure arranged in a lock door stop (2) and akey assembly. In a locked state, a spring bolt of the lock head structure protrudes out, and is embedded in a positioning hole of the lock seat structure and performs positioning in an up and down mode, a latch of the lock seat structure protrudes downward out of the bottom of the lock door stop (2) to abut against the back surface of a piano key cover (3), and the piano key cover (3) positions along a rotation axis; in a unlocked state, the spring bolt of the lock head structure is retracted into the lock head structure away from a lock hole of the lock seat structure, the latch of the lock seat structure is retracted upward into the lock door stop (2), and the piano key cover (3) swings along the rotation axis; and the key assembly is used for being inserted into the lock hole of the lock head structure and driving the lock head structure to protrude or retract. The built-in type of the piano lock mechanism is not prone to being touched, and the piano lock mechanism is simple in structure and good in reliability, and ensures the integrity of the entire piano.

Description

technical field [0001] The invention relates to the technical field of piano parts, in particular to a piano lock mechanism. Background technique [0002] The front of the piano is generally provided with a front top cover, a door lock and a key cover. The inside of the key cover is rotationally connected with the bottom of the lock door through a long hinge. The front top cover is located on the top of the lock door. When using the piano, the key cover Flip open. When tuning is required, the front top cover is turned up. When the key cover needs to be locked, the upper and lower plates of the external bayonet type are generally used to press together, thereby locking the key cover and making it impossible to open. Such a simple locking structure is exposed to the outside, which affects the integrity of the entire piano. And it is easy to be touched and damaged. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide ...

AI Technical Summary

Problems solved by technology

When the key cover needs to be locked, the upper and lower plates of the external bayonet type are generally used to press together, thereby locking the key cover and making it impossible to open. Such a simple locking structure is exposed to the outside, which affects the integrity of the entire piano. and easily damaged by touching

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