Patent ID: 8747076
Filing Date: 2014-06-10
Classification: F04B

Abstract:
1. A portable air pump, comprising: a pump body; an accommodation chamber defined in said pump body; a pressure gauge accommodated in said accommodation chamber and movable in and out of said accommodation chamber between an exposed position where a person can view pressure readings of said pressure gauge and a hidden position where said pressure gauge is received in said pump body and kept from sight; a casing carrying said pressure gauge and movable in and out of said accommodation chamber of said pump body, and a piping connected between said pressure gauge and an air output port of said pump body; locking means disposed in said casing and an inside wall of said accommodation chamber for locking said casing to said pump body in said accommodation chamber, and a control member operable to unlock said locking means; a spring member set between said casing and said pump body and adapted for pushing said casing out of said accommodation chamber upon operation of said control member to unlock said locking means, wherein said control member is a footplate pivotally connected to said pump body and biasable within about 90 degrees angle between a received non-operative position where said footplate is closely attached to said pump body and an extended operative position where said casing is unlocked from said pump body; a base member located on a bottom side of said pump body, wherein said base member includes a left wall, a right wall, a top wall, a bottom wall, a rear wall and an opening formed at a front end of said base member for defining said accommodation chamber in the bottom side of said pump body; and the casing carrying said pressure gauge and movable in and out of said accommodation chamber, and a piping connected between said pressure gauge and an air output port of said pump body.