Single-row locking device tester

The invention provides a single-row locking device tester, which comprises a frame, locking devices, a main oil cylinder, a main rack, a ball and a slipway, wherein a single group of locking devices is provided; the locking devices are connected with the main oil cylinder; the main oil cylinder is used for providing thrust force; one side of the main rack is meshed with the locking devices, and the other side of the main rack is connected with the ball and the slipway; and the locking devices, the main oil cylinder, the main rack, the ball and the slipway are arranged on the frame. Due to theadoption of the scheme, the testing capability is increased, the production cost is lowered, and the service life is prolonged.