Jack

Abstract

The present disclosure discloses a jack including a first upper arm, a second upper arm, a first lower arm, a second lower arm and a first rod body, which is characterized in that it is further provided with a first pin shaft—the first upper arm and the first lower arm are rotatably connected by the first pin shaft; a second pin shaft—the second pin shaft has an internal chamber, the second upper arm and second lower arm are rotatably connected by the second pin shaft, and the first rod body is rotatably connected to the second pin shaft; a locking component—the locking component is set in the second pin shaft and can be connected to the first rod body through threads or sliding; the beneficial effects of the present disclosure are: using the present disclosure can ensure the stability of a recreational vehicle (RV).

Dependencies are inferred from the claim text.