CN2389011Y - Monofilm pump - Google Patents

Abstract

The utility model relates to a pump of a sprayer. The utility model comprises a pump body (7), a pressure chamber (1), a liquid inlet, a liquid outlet, one-way valves (3 and 11), a piston (6), a piston rod (10), wherein, the pump body is connected with the pressure chamber; the liquid inlet and the liquid outlet are arranged on the pump body; the piston is formed into a rubber diaphragm (6). The utility model provides a pump with the advantages of good sealing performance, high efficiency, big pressure, and excellent combination property, and the pump is applied to sprayers.

Description

Monofilm pump

The utility model relates to a kind of sprayer pump, relates in particular to a kind of diaphragm type pump.

Existing sprayer pump mainly comprises pump and middle leather cup, and its sealing property is bad, easily leaks, and efficient is not high, requires great effort during use, has influence on its combination property yet, still dislikes not enough as the pressure that produces.Though occurred many new pump on the market, all undesirable, the pressure of pump is still not high yet.Efficient still awaits improving.

The purpose of this utility model is: a kind of good seal performance is provided, and the efficient height, pressure is big, the sprayer pump that combination property is excellent.

The purpose of this utility model is achieved in that a kind of sprayer pump, comprise compositions such as the pump housing, balancing gate pit, liquid entrance and check valve thereof, piston and piston rod, it is characterized in that the pump housing is connected with the balancing gate pit, liquid entrance is on the pump housing, and described piston is a slice glue film.

Further improvement of the utility model is: described piston is one to have the glue film of circumferential groove, and its diameter is identical with the diameter of the pump housing, and the circumferential position of glue film is fixed.

Characteristics of the present utility model are: have that water-tight, pressure is big, braking is light, an easy-maintaining, simple in structure, long service life.

The course of work of the utility model pump is as described below: when carrying on the rocker lever and make piston rod downward (with sprayer direction of action commonly used), suck soup, soup entered pressure air chamber, pressurization when piston rod made progress, through moving back and forth, the continuous supercharging of pressure air chamber's inner liquid medicine, soup passes through the shower nozzle operation by liquid outlet when opening switch.

The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment:

Fig. 1 is the utility model pump general structure schematic diagram;

Fig. 2 is the utility model pump parts scheme of installations;

Fig. 3 is the split type pump split of a utility model structural representation

Fig. 4 is the split type pump configuration schematic diagram of the utility model

As shown in the figure, Fig. 1 is the general structure schematic diagram; Fig. 2 is pump parts scheme of installations; The sprayer pump comprises that the pump housing 7, balancing gate pit (air chamber) 1, liquid entrance and check valve 3,11, piston 6, piston rod 10, the pump housing and balancing gate pit are integrated, can also the separate units shown in Fig. 3,4 be connected again.Pump housing bottom is provided with a pressure carriage 7-1, and the liquid entrance joint is connected on the pump housing and with air chamber and is connected, and described piston comprises a glue film 6, can rubber etc. macromolecular material make, especially can make by polyamine fat (PU) material.Glue film has circumferential groove 6-1, and (can strengthen expansion force) its spiral shell of moulding by lower clamping piece 9 and upper clip emits 5 to be fixed on the piston rod 10.The diameter of glue film is a bit larger tham the diameter of pressure air chamber.The circumferential position of glue film is fixed, thereby makes the piston knee-action.The liquid in-out valve is check valve, and pressure air chamber's first half is mutually bonding with the turnover water valve.11 is liquid outlet joint among the figure, and 3 be the liquid-inlet joint, is connected with the fluid box outlet of sprayer.Fig. 3 is split type pump split structural representation, and air chamber and the pump housing separate and be connected by tube connector after making again, and Fig. 4 is split type pump general structure schematic diagram.

The utility model is used in the hand sprayer, and valve rod is driven knee-action by the sprayer handle.

Claims (3)

1. sprayer pump, comprise the pump housing (7), balancing gate pit (1), liquid entrance and check valve (3,11), piston (6) and piston rod compositions such as (10), it is characterized in that the pump housing is connected with pressure air chamber, liquid entrance is on the pump housing, and described piston is a slice glue film (6).

2. by the described sprayer pump of claim 1, it is characterized by piston and be one and have the glue film (6) of circumferential groove, and its diameter is identical with the diameter of the pump housing, the circumferential position of glue film is fixed.

3. by claim 1,2 described sprayer pumps, it is characterized by the pump housing and make separate units earlier with the balancing gate pit and be connected again.

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