Connection lock for prefabricated components

A connection lock for prefabricated components, comprising an auxiliary part and a main part, wherein the auxiliary part and the main part are each provided with a fixing structure for connecting with prefabricated components in an anchoring fit mode, the auxiliary part comprises an auxiliary part body, an auxiliary part transmission structure, and a lock pin structure, the lock pin structure is movably mounted to the auxiliary part body, and the auxiliary part transmission structure is in transmission fit with the lock pin structure;

• and
• the main part comprises a main part body, a main part transmission structure, and a locking structure, an inserting channel fitted with the lock pin structure is formed in the main part body, the locking structure is adjustably mounted in the main part body, the main part transmission structure is in transmission fit with the locking structure, and the locking structure is lockingly fitted with the lock pin structure after the lock pin structure is inserted in the inserting channel,
• the auxiliary part transmission structure is an auxiliary part transmission shaft rotatably mounted in the auxiliary part body, an end of the auxiliary part transmission shaft is provided with a screw operation member, an axial direction of the auxiliary part transmission shaft is perpendicular to a movement direction of the lock pin structure, the auxiliary part transmission shaft is provided with a gear for stop or rotation of the auxiliary part transmission shaft, and the lock pin structure comprises a rack section engaged with the gear.