| 摘要 |
PURPOSE: A pressure pump module is provided to firstly generate big pressure by injecting air into a cylinder with a hand pump and to perform fine adjustment of cylinder pressure by using a fine adjustment wheel. CONSTITUTION: A pressure pump module comprises a hand pump (10), a cylinder (20), a compression board (30), a reciprocating shaft (40), a fine adjustment wheel (50), a support guard (60), and a connection pipe (70). The fine adjustment wheel is disc-shaped and is installed in a case (80) while being supported by a second support board (92). The fine adjustment wheel includes a fine control wheel hole (51) in the central shaft of the disc, which penetrates the end of the reciprocating shaft so that the reciprocating shaft can move back and forth. The support guide has a cylindrical shape, which is hollow inside, and covers the outer periphery of the reciprocating shaft between the cylinder and the fine adjustment wheel. One side of the connection pipe is connected to a cylinder hole (22) penetrating the inside and outside of the cylinder and the other side is connected to the hand pump so that the air injected by the hand pump is injected into the cylinder. |
