| 摘要 |
The invention discloses an elastic bag foam pump, which comprises a bottle cover (1), an elastic bag (2), a piston rod (3), a piston (4), a liquid inlet one-way valve (6) and a gas inlet one-way valve (8), wherein the elastic bag (2) is a hollow thin-wall bag; the bag opening of the elastic bag is provided with a connection part (2.1); the connection part (2.1) is mounted on an annular wall (1.1) used for connection on the bottle cover (1) in a sealing way; the elastic bag (2) is provided with an inlet hole (1.8) through which an inlet pipe (2.4) is communicated with the bottle cover (1); the gas inlet one-way valve (8) is mounted at one side of the inlet hole (1.8); a piston rod upper end (3.1) is fixed to an upper wall connection part (2.3) of the elastic bag (2); the lower end of the piston rod (3) is provided with the piston (4); and a cylinder (1.2) is arranged in the middle of the bottle cover (1). The elastic bag foam pump has the advantages of simple structure, low cost and easy to use. |
| 主权项 |
1. An elastic bag foam pump, characterized in that it comprises a bottle cover (1), an elastic bag (2), a piston rod (3), a piston (4), a liquid inlet one-way valve (6) and a gas inlet one-way valve (8), wherein the elastic bag (2) is a hollow thin-wall bag; the bag opening of the elastic bag is provided with a connection part (2.1); the connection part (2.1) is mounted on an annular wall (1.1) used for connection on the bottle cover (1) in a sealing way; the elastic bag (2) is provided with an inlet hole (1.8) through which an inlet pipe (2.4) is communicated with the bottle cover (1); the gas inlet one-way valve (8) is mounted at one side of the inlet hole (1.8); a main body of an elastic bag air pump is made up of the elastic bag and the bottle cover; a main body of a liquid piston pump is made up of the piston rod (3), the piston (4) and a cylinder of the bottle cover;
A piston rod upper end (3.1) is fixed to an upper wall connection part (2.3) of the elastic bag (2); the lower end of the piston rod (3) is provided with the piston (4); and a cylinder (1.2) is arranged in the middle of the bottle cover (1), a pipe orifice (1.3) is arranged on the bottom of the cylinder (1.2), the upper end of the pipe orifice (1.3) is provided with the liquid inlet one-way valve (6), the lower end of the pipe orifice (1.3) is communicated with a guide pipe (7), the guide pipe (7) is used for stretching into exterior lotion bottle; the piston rod (3) is communicated with the piston (4) and stretches into the cylinder (1.2) with the same, an outside wall of the piston form a dynamic sealing to the inner wall of the cylinder (1.2), the elastic bag foam pump is further provided with an outlet mixed channel of liquid and air. |
