Mute type center lifting rod, center lifting device and mahjong machine

The utility model relates to the field of mahjong machines, and discloses a mute type center lifting rod, a center lifting device and a mahjong machine. A plurality of clamping grooves (101) are formed in the outer side wall of the lifting rod body (10), and silencing strips (11) used for reducing the collision sound of mahjong tiles are clamped in the clamping grooves (101). And the silencing strip (11) is a strip-shaped silencing strip (11) made of an elastic material body. All the clamping grooves (101) are vertically formed and evenly distributed in the side wall of the outer circumference of the lifting rod body (10). A traditional lifting rod body is a polished rod, and a silencing piece is installed on a bowl supporting seat and does not make contact with the lifting rod body. The center lifting rod jumps out of the traditional noise reduction design thought, the noise reduction strips are directly clamped on the periphery of the lifting rod body, the noise reduction strips are small in size and low in