Universal bolt

A universal bolt mainly comprises a main body, a locking plate and a locking plate reset spring, and is installed and used by utilizing the gap allowance of a door seam between a door and a door frameand an inclined tongue sliding-in hole in the door frame, so that a user can carry the bolt aside at any time for standby application, and a pair of hanging lugs of the bolt is hooked in the inclinedtongue sliding-in hole in the door frame when the bolt is used; when the door needs to be opened, the door can be opened only by enabling the locking plate to swing into the locking plate hole afterovercoming the acting force of the locking plate reset spring, and then the door bolt is taken out, so that a user can take the door bolt aside for later use when going out for living for a short time, and the door lock is simple and reasonable in structure and convenient to use; the door lock is suitable for all doors provided with door locks. 一种万能门栓，主要包括主体、锁片和锁片复位簧，并利用房门与门框之间的门缝和门框上的斜舌滑入孔的空隙余量来安装使用的，这样使用者可以随时带在身边以备使用，而且在使