Lifting type angle adjusting and fast locking mechanism

The invention discloses a lifting type angle adjusting and fast locking mechanism which comprises a first articulation piece and a second articulation piece, wherein one ends of the first articulation piece and the second articulation piece are articulated through a hinge; a non-penetrative arc notch and a penetrative arc notch are formed in the other end of the first articulation piece, and tooth grooves are formed in the inner bottom surface of the non-penetrative arc notch; a pin shaft is arranged at the other end of the second articulation piece, and a locking piece is arranged on the pin shaft; latches are arranged on the locking piece, and a spring is arranged between the pin shaft and the locking piece; the locking piece is arranged in the non-penetrative arc notch, a bump is arranged on the locking piece and penetrates through the penetrative arc notch. The locking piece is compressed by the spring, and the latch is meshed with the tooth grooves. The bump is lifted, the locking piece moves up along the pin shaft, and the latch is separated from the tooth grooves. The lifting type angle adjusting and fast locking mechanism can realize locking after the angle is manually adjusted. The lifting type angle adjusting and fast locking mechanism has the advantages of being reliable in locking, easy and convenient to use and wide in application occasions.