U-shaped pressure gauge

The utility model discloses a U-shaped pressure gauge, which comprises an upper box body, a lower box body and a U-shaped transparent hose, the upper box body and the lower box body are dustpan-shaped, the upper box body and the lower box body are symmetrically arranged up and down, an upper graduated scale is arranged in the upper box body, an air inlet valve and an air outlet valve are arranged on the upper side wall of the upper box body, a lower graduated scale is arranged in the lower box body, and the U-shaped transparent hose is arranged in the U-shaped transparent hose. The lower box body is hinged with the upper box body, the upper half part of the U-shaped transparent hose is fixed in the upper box body, the lower half part of the U-shaped transparent hose is fixed in the lower box body, and two ports of the U-shaped transparent hose are correspondingly communicated with the air inlet valve and the air outlet valve. The device has the advantages of being convenient to carry, long in service life, li