| 主权项 |
1. A dual gauge pump device comprising:
a main body including a conduit, an air inlet hole, and an air outlet hole connected with one another, wherein the air inlet hole is connected to and a chamber defined in a pump system which is configured to pump air; a first gauge fluidly coupled to the main body and including a first through hole, and wherein the conduit includes a first bifurcation connecting to the first through hole; a second gauge fluidly coupled to the main body and including a second through hole, and wherein the conduit includes a second bifurcation connecting to the second through hole; and a valve system disposed in the second bifurcation of the conduit and including a sleeve, a shaft, and an elastic member, wherein the second bifurcation of the conduit extends between the air outlet hole and the second through hole, wherein the sleeve includes a hole interconnecting the conduit and the second through hole, wherein the shaft is engaged with the sleeve and is able to move with respect to the sleeve selectively to a first position in which the hole is closed and to a second position in which the hole is open, and wherein the shaft is biased by the elastic member. |
