CHECK DEVICE

Disclosed in embodiments of the present invention is a check device, comprising: a check device body; and a base, comprising a first base body, a second base body, and a locking mechanism. The check device body is mounted to the first base body; at least part of the second base body can be accommodated in an inner cavity of the first base body; the first base body comprises a first sliding member; the second base body comprises a second sliding member, the first sliding member works in conjunction with the second sliding member, such that the second base body can move with respect to the first base body; at least part of the second base body can be accommodated in or can extend out of the inner cavity of the first base body; and the locking mechanism is used for locking the second base body with respect to the first base body, such that the at least part of the second base body is accommodated in the inner cavity of the first base body, and unlocking the second base body with respect to the first base body, such that the at least part of the second base body extends out of the inner cavity of the first base body. By means of the mode, the check device can be used for checking a brake disc of a vehicle and can also check a tread surface of a tire, and is stable and effective.