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Push type liquid pump

A liquid pump, push-type technology, used in spray devices, single handheld devices, etc., can solve problems such as pollution, and achieve the effect of avoiding dripping

Active Publication Date: 2017-03-29
丁要武
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For liquid products with low viscosity and good fluidity (such as oily or watery products), even if the container does not move without vibration, the residual liquid product near the outlet of the indenter after a period of time will automatically move under the action of gravity. Dripping, causing unwanted contamination problems

Method used

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  • Push type liquid pump
  • Push type liquid pump
  • Push type liquid pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] First of all, here, by the way, the "upper", "lower", "top" and "bottom" mentioned in the context are relative to the push-type liquid pump placed in a vertical orientation (that is, the liquid pump is set to its axis Orientated in the vertical direction, which is the usual orientation of the push-type liquid pump during operation) and determined.

[0033] Referring to Figures 2-8, a first embodiment of the present invention is shown. The push-type liquid pump mainly includes a pressure head 10, a volume change device installed on the pressure head 10, and a piston 50 connected to the pressure head 10 (the piston is composed of a piston rod 52 and a piston member 141 mounted on the piston rod 52) , forming the cylinder 60 of the liquid storage tank 30, the upper check valve 40 that is arranged on the piston 50 (the upper check valve consists of an outer peripheral surface (as a valve seat) of the piston rod 52 and a piston member installed on the outer peripheral surface ...

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PUM

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Abstract

The present invention provides a push-type liquid pump for mounting on a container for pumping and dispensing a liquid product inside the container to the outside of the container. The liquid pump includes a pressure head, a piston connected with the pressure head, an upper one-way valve, a liquid storage tank and a lower one-way valve installed at the bottom of the liquid storage tank. The ram and piston together form a dispensing channel for the liquid product. The liquid pump includes a volume changing device for reducing the volume of the dispensing channel during the downward pressing of the pressure head and restoring the volume of the dispensing channel to the original state after the downward pressing action is removed. Utilizing the liquid pump with the distribution channel volume changing device of the present invention can effectively prevent the residual liquid product in the distribution channel from dripping from the outlet of the pressure head.

Description

technical field [0001] The invention relates to the field of liquid pumps, and more specifically relates to a push-type liquid pump. Background technique [0002] The liquid pump is generally installed at the opening of the container, and is used for pumping and distributing the liquid product in the container out of the container through manual pressing operation by the user for use. figure 1 A conventional push-type liquid pump is shown. In this liquid pump, when the user presses the pump head 110 downwards, the lower check valve 180 is closed, and the upper check valve 140 (the check valve consists of an outer peripheral surface of the piston rod 152 (as a valve seat) ) and the piston part 141 (as a valve part) installed on the outer peripheral surface constitutes) open, the liquid product in the liquid storage tank 130 in the cylinder 160 passes through the opened upper check valve 140, and passes through the piston 150 (the piston is formed by Piston rod 152 and the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05B11/02
CPCB05B11/1026B05B11/1047B05B11/1097
Inventor 丁要武
Owner 丁要武