JPH1142452A - Trigger liquid spouting vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a suction valve and delivery valve of the trigger liq. injection vessel with one valve member integrally formed by a synthetic-resin material. SOLUTION: The upper ends of the plural elastic screw-thread pieces 23 projected upward from the upper face of a short cylinder 22 into a vertical cylinder 7 provided to the spout unit of this trigger liq. spouting vessel are connected to the lower face of a plug rod 24, an inverted skirt-shaped elastic sealing cylinder 25 is projected upward and outward from the outer face of the plug rod 24 to constitute a valve member 21, the short cylinder 22 is fitted into the lower part of the vertical cylinder 7, the screw-thread pieces 23 are compressed, a valve element 26 at the upper end of the plug rod 24 is pressed on the lower face of the periphery of the second flange hole of a second inward flange 16 attached to the upper end of the vertical cylinder 7 to form a delivery valve 27, and the periphery of the upper end of the sealing cylinder 25 is pressed on the inner wall face of the vertical cylinder below a liq. passage hole 8 to form a suction valve 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a trigger type liquid ejection container.

[0002]

2. Description of the Related Art For example, as shown in Japanese Patent Application Laid-Open No. 8-266964,
A vertical cylinder portion that suspends a suction pipe as a liquid suction passage from a lower end, a cylinder that has a liquid inlet / outlet communicating with the vertical cylinder portion on a rear wall, and that protrudes forward from the front surface of the vertical cylinder portion; The lower part of the triker-type liquid ejector having an injection cylinder protruding forward from the upper end, a trigger hanging down from the front part of the injection cylinder, and a plunger fitted in the cylinder and connecting the front end part to the upper part of the trigger is connected to the container body. A trigger type liquid ejection container detachably attached to a part is widely used.

[0003]

When the plunger retreats in the cylinder due to the pulling of the trigger, the trigger type liquid ejection container is mounted on the front end of the injection cylinder through the liquid inlet / outlet and the injection cylinder due to the high pressure in the cylinder. When the liquid in the cylinder is ejected from the nozzle and the trigger is released, the plunger automatically returns to a negative pressure inside the cylinder, and then the liquid in the container is sucked into the cylinder through the suction pipe. Usually, a suction valve is provided in a lower portion of the vertical tube portion, and a discharge valve is provided in an upper portion of the vertical tube portion. However, since these are separately provided, it is troublesome. The present invention provides a valve member made of a synthetic resin having the respective valve elements of the two valves integrally, and is provided so that the two valves can be easily formed simply by fitting the valve member into the vertical cylindrical portion. Things.

[0004]

Means for Solving the Problems A container body 1 and a trigger type liquid ejector 3 whose lower part is detachably attached to the mouth of the container body, the liquid ejector hangs down to the bottom of the container body. A vertical cylinder portion 7 having a liquid suction passage 6, a liquid inlet / outlet 8 communicating with the vertical cylinder portion on a rear wall, a cylinder 9 projecting forward from the front surface of the vertical cylinder portion, and a cylinder projecting forward from an upper end of the vertical cylinder portion. In the trigger-type liquid ejection container having an injection cylinder 10, a trigger 11 hanging down from the front of the injection cylinder, and a plunger 12 fitted in the cylinder and connecting the front end to the upper part of the trigger, the vertical cylinder 7 A first inward flange 14 having a first flange hole 13 as a part of the liquid suction passage 6 is provided at a lower end, and a second flange hole 15 having an upper end portion of the vertical cylinder portion 7 and having a second flange hole 15 communicating with the inside of the injection cylinder 10 is provided. 2 Provide the inward flange 16 and project upward from the upper surface of the short cylinder 22 The upper end of the plurality of elastic thread pieces 23 is connected to the lower surface of the plug 24, and the valve member 21 integrally formed of a synthetic resin material is protruded upward and outward from the outer surface of the plug rod. The short cylinder 22 is provided with the vertical cylinder 7
The valve body 26 formed by the upper end of the plug rod is formed by the lower peripheral side edge of the second flange hole while the elastic thread piece 23 is slightly compressed against the elasticity while being fitted to the lower inner surface of The discharge valve 27 was formed by pressing against the seat 17, and the suction valve 28 was formed by pressing the outer periphery of the upper end of the elastic seal cylinder 25 watertight against the inner wall surface of the vertical cylinder 7 below the liquid inlet / outlet 8.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The basic structure of the drawings will be briefly described below. Reference numeral 3 denotes a trigger type liquid ejector which hangs a base cylinder portion 4 from the lower surface thereof, and attaches an outward flange attached to an outer surface of an intermediate portion of the base tube portion to form a mouth-neck upper end surface and a mouth-neck portion. It is clamped by an inward flange at the upper end of the mounting cylinder 5 screwed to the outer surface. The liquid ejector has a vertical cylinder portion 7 as a double cylinder with a liquid suction passage 6 hanging down to the bottom of the container body, and a liquid inlet / outlet 8 communicating with the vertical cylinder portion on a rear wall. A cylinder 9 projecting forward from the front of the cylinder, an injection cylinder 10 projecting forward from the upper end of the vertical cylinder, and a trigger 11 hanging down from the front of the injection cylinder.
And a plunger 12 fitted in the cylinder to connect the front end to the rear upper portion of the trigger.

In the following, the present invention will be described. A first inward flange 14 having a first flange hole 13 as a part of the liquid suction passage 6 is provided at the lower end of the vertical cylinder 7 and the upper end of the vertical cylinder 7. Is provided with a second inward flange 16 having a second flange hole 15 communicating with the inside of the rear part of the injection cylinder 10. The lower surface of the outer peripheral portion of the second flange hole 15 is formed in the valve seat 17.

A valve member 21 integrally formed of a synthetic resin material is fitted into the vertical cylindrical portion 7. The valve member has a short cylinder 22 at the lower end.
The upper end of the plurality of elastic thread pieces 23 projecting upward from the upper surface of the short cylinder is connected to the lower surface of the stopper rod 24, and the elastic seal cylinder 25 having a reverse skirt shape from the lower periphery of the stopper rod 24 upward and outward. The short tube 22 is placed on the upper surface of the first inward flange 14 and fitted to the lower inner surface of the vertical tube portion 7.
With the elastic thread piece 23 slightly compressed against elasticity,
The valve body portion 26 formed by the upper end portion is pressed against the above-described valve seat 17 to form the discharge valve 27, and the outer periphery of the upper end of the elastic seal tube 25 is moved to the inner wall surface of the vertical tube portion 7 below the liquid inlet / outlet 8. The suction valve 28 is formed in a watertight pressure contact.

In the above construction, when the trigger 11 is pulled rearward, the plunger 12 retreats in the cylinder 9 and pressurizes the inside of the cylinder rear and the upper part of the vertical cylinder 7 between the suction valve 28 and the discharge valve 27. Then, the pressurization pushes the upper surface of the elastic seal cylinder 25 downward, so that the stopper rod 24 descends against the urging of the elastic thread piece 23, and then the discharge valve 27 opens to open the inside of the cylinder rear and The pressurized chamber liquid formed by the upper part of the vertical cylinder part 7 is ejected from the nozzle 31 fitted to the front end of the injection cylinder through the injection cylinder 10. When the plunger 12 reaches the rear end, the seal cylinder 33 attached to the rear end of the plunger enters the groove 32 formed on the inner surface of the rear end of the cylinder, and the seal at the rear end of the plunger with respect to the cylinder 9 is released. The high-pressure liquid in the pressurized chamber passes through the space between the outer surface of the plunger 12 and the inner surface of the cylinder 9 and is discharged into the container body 1 through the exhaust hole 34 formed in the bottom wall of the cylinder middle part. By discharging the high-pressure liquid, the high-pressure state in the pressurizing chamber is released, and thus the
Rises to close the discharge valve 27.

Then, when the trigger 11 is released, the leaf spring 35 projecting obliquely upward and forward from the lower rear of the liquid ejector presses the lever 36 projecting obliquely downward and rearward from the upper end of the trigger 11, so that the urging is performed. This causes the trigger 11 to slide forward, thus causing the plunger 12 to move forward. Due to the advance of the plunger, the pressure in the rear portion of the cylinder 9 and the upper portion of the vertical cylinder portion 7 is reduced, and the suction valve 28 is opened, so that the liquid suction passage 6 is opened.
The liquid in the container also flows into the pressurized chamber formed by the inside of the rear part of the cylinder and the inside of the upper part of the vertical cylinder part 7 to eliminate the negative pressure state.

[0010]

According to the present invention, the vertical cylindrical portion 7 having the liquid suction passage 6 hanging down to the bottom of the container body 1 has the above-described structure.
A plurality of elastic thread pieces projecting upward from the upper surface of the short cylinder 22
23 The upper end is connected to the lower surface of the stopper rod 24, and a valve member 21 integrally formed of a synthetic resin material is projected from the outer surface of the stopper rod upward and outward to project an inverted skirt-shaped elastic seal cylinder 25. The valve body 26 formed by the upper end of the plug rod is fitted in the lower inner surface of the part 7 and the elastic thread piece 23 is slightly compressed against the elasticity.
Is pressed against a valve seat 17 formed by the lower surface of the outer peripheral portion of a second flange hole of a second inward flange 16 provided at the upper end of the vertical cylinder portion 7 to form a discharge valve 27. The suction valve 28 is formed by pressing the outer periphery of the upper end of the elastic seal cylinder 25 in a watertight manner against the inner wall surface of the vertical cylinder portion below the liquid inlet / outlet 8 communicating with the inside of the suction port 9. It is convenient that the valve can be formed and the structure can be simplified as compared with a case where both valves are separately provided.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a liquid ejection container of the present invention.

[Explanation of symbols]

 7 ... Vertical cylinder part 8 ... Liquid inlet / outlet 9 ... Cylinder 10 ... Injection cylinder 21 ... Valve member 22 ... Short cylinder 23 ... Elastic thread piece 24 ... Plug rod 25 ... Elastic seal cylinder 27 ... Discharge valve 28 ... Suction valve

Claims (1)

[Claims] 1. A container body 1 and a trigger type liquid ejector 3 having a lower portion detachably attached to an opening of the container body,
The liquid ejector has a vertical cylinder portion 7 with a liquid suction passage 6 hanging down to the bottom of the container body, and a liquid outlet 8 communicating with the vertical cylinder portion on a rear wall, and projects forward from the front surface of the vertical cylinder portion. Cylinder 9, an injection cylinder 10 projecting forward from the upper end of the vertical cylinder, a trigger 11 hanging from the front of the injection cylinder, and a plunger 12 fitted into the cylinder to connect the front end to the upper part of the trigger.
A first inward flange 14 having a first flange hole 13 as a part of the liquid suction passage 6 is provided at the lower end of the vertical cylindrical portion 7 at the lower end of the vertical cylindrical portion 7, and at the upper end of the vertical cylindrical portion 7. A second inward flange 16 with a second flange hole 15 communicating with the inside of the injection cylinder 10 is provided, and the upper ends of the plurality of elastic thread pieces 23 projecting upward from the upper surface of the short cylinder 22 are connected to the lower surface of the plug rod 24, A valve member 21 integrally formed of a synthetic resin material is provided which protrudes an inverted skirt-shaped elastic seal cylinder 25 outward and upward from the outer surface of the plug rod, and the short cylinder 22 is fitted to the lower inner surface of the vertical cylinder portion 7. Along with
In a state where the elastic thread piece 23 is slightly compressed against the elasticity, the valve body 26 formed by the upper end portion of the plug rod is pressed against the valve seat 17 formed by the lower peripheral edge of the second flange hole to discharge the valve 27. And a suction valve 28 formed by pressing the outer periphery of the upper end of the elastic seal cylinder 25 against the inner wall surface of the vertical cylinder portion 7 below the liquid inlet / outlet 8 in a watertight manner.