JPS6036364Y2 - Parts for a sprayer that can be used both vertically and vertically - Google Patents

Description

[Detailed explanation of the idea] This proposal relates to a member for a sprayer that can be used both in an upright and inverted position.

The present applicant previously filed an application for a manual sprayer that can be used both upright and inverted, and by using the proposed member in such a sprayer, the structure of the sprayer can be simplified, and the main body of the sprayer can be easily positioned relative to the container body when refilling liquid, etc. It is designed to be easy to attach and detach.

The drawings will be described below. Reference numeral 1 indicates a member for a sprayer that can be used both in an upright and inverted position according to the present invention.

This member has a cylindrical body 2 with both upper and lower ends open, and an outward flange 3 for engaging the top surface of the container protrudes from the outer surface of the intermediate portion thereof.

It is preferable that a through hole 4 for preventing negative pressure inside the container be provided at the base of the outward flange.

A liquid suction valve 5 for inversion is provided in the cylindrical portion below the outward flange.

The valve valve may be formed by boring a valve hole 6 in the cylindrical wall portion and fitting an elastically deformable small cylindrical body 7 into the cylindrical wall portion in a watertight manner.

In other words, normally the valve hole 6 is closed watertight by the small cylinder, and only when the cylinder becomes negative pressure, the wall of the small cylinder is pushed inward and opened, and the valve hole 6 is opened only when the cylinder becomes negative pressure. It is provided so that it will be blocked again when the problem is resolved.

An air suction prevention valve 8 for inversion is provided below the liquid suction valve 5 for inversion.

It is best to provide the valve between the lower surface of the small cylinder and the liquid suction pipe 9 for upright position fitted to the lower end of the cylinder 2, as shown in the figure. A ball valve 11 may be enclosed as the valve seat 10 between the valve seat and the upper end of the suction pipe.

The cylindrical part above the outward flange is used to form the pump part of the sprayer, and the lower inner surface has a liquid suction valve 12 for when standing upright.
It is formed into a small diameter cylinder 13 having a diameter.

The valve may be formed by providing an inward flange-like wall 15 having a valve hole 14 on the inner surface of the cylindrical body, and placing a ball valve 16 on the upper surface thereof.

Note that 17 is a protrusion for preventing the ball valve from coming off.

The members configured as described above can be used as shown.

A medium-diameter cylinder 21 having a discharge valve body 20 is fitted into the small-diameter cylinder 13, and a large-diameter cylinder 23 having a discharge valve hole 22 is fitted into the medium-diameter cylinder 21, and these are connected to the holding cylinder member. Incorporate into 25.

This member has its lower cylindrical portion 25a connected to the mouth portion 26 of the container body 26.
The upper cylinder part is a holding cylinder part 25b, and an outward flange fitting recess 25 is provided on the inner surface of the intermediate part.
c is formed, and a downward retaining surface 25 is formed on the upper inner surface.
d is formed.

The outward flange of the proposed member is fitted into the recess 25c, and the large-diameter cylinder is fitted from below into the holding cylinder part so as to be movable up and down, thereby holding the retaining part 23a attached to the outer periphery of the lower end of the large-diameter cylinder. It is engaged with the downward engaging surface 25d of the cylindrical portion.

A coil spring 27 is installed between the proposed member and the medium diameter cylinder 21, and the discharge valve body 20 is brought into pressure contact with the lower surface of the discharge valve hole 22, thereby forming the discharge valve 19.

In addition, a fitting cylinder 24 that stands up from the upper periphery is inserted into the nozzle hole 28 in the discharge valve hole 22 bored in the center of the top wall of the large diameter cylinder 23.
It is fitted into a spray head 29 having a.

Further, a backing valve 30 is fitted into the upper part of the lower cylindrical portion, and the lower end of the tapered valve portion 31 is pressed against the outer surface of the cylindrical wall.

The suction pipe and lower cylindrical portion of the sprayer assembled as described above are placed into the container body, and the lower cylindrical portion of the holding cylindrical member is screwed into the liquid inside the container.

When using it for the first time in an upright position, first move the spray head 29 up and down several times to draw liquid into the pump chamber consisting of the small diameter cylinder 13, medium diameter cylinder 21, and large diameter cylinder 23, and then start spraying. When the head is pushed down, the pressure inside the pump chamber becomes high because both the suction valve 12 and the discharge valve 19 are closed.

Then, due to the diameter difference between the small-diameter cylinder and the large-diameter cylinder, the medium-diameter cylinder is pushed down against the bias of the spring 27, and the discharge valve 19 opens and sprays.

While the spray head is descending, the high pressure state in the pump chamber is maintained, and therefore spraying continues, but when the spray head reaches the lower limit and stops, the high pressure is eliminated and the discharge valve is closed.

Subsequently, when the spray head is released (with the discharge valve closed), the spray head rises, expanding the volume inside the pump chamber and creating a negative pressure, so that the suction valve 12
The container is opened to suck in the liquid inside the container through the suction pipe 9 in preparation for the next spraying.

When the sprayer is turned upside down, the liquid inside the container moves toward the mouth and neck, and the lower end of the suction pipe is exposed to the air because it is on the bottom wall side of the container.

In this case as well, the suction valve 12 closes when the spray head is pushed in, and the discharge valve 19 opens and sprays as the pressure inside the pump chamber increases, but when the pressure inside the pump chamber becomes negative, the ball valve 11 becomes the inverted air suction valve. 8 is closed to create a negative pressure, the small cylinder 7 is elastically deformed due to the pressure difference between the inside and outside, and the inverted liquid suction valve 5 is opened to suck in the liquid inside the container and prepare for the next spraying.

Note that when the inside of the container becomes negative pressure due to a decrease in liquid, when the spray head is pushed in, the space between the large diameter cylinder and the holding cylinder part 25b, the through hole 4, and further the tapered valve part 31 and the lower cylinder where the valve part comes into pressure contact with each other. Outside air flows in between the cylinder wall and the cylinder wall.

In the above embodiment, the pump section of the sprayer is composed of a small diameter cylinder, a medium diameter cylinder 21, and a large diameter cylinder, but it is to be noted that the present member can also be used for sprayers with other pump structures that use small diameter cylinders. Not even.

The present invention has the above-mentioned structure, and an outward flange 3 for engaging the liquid inside the container is provided on the outer periphery of the middle part of the cylinder 2, and a liquid suction valve 5 for when inverted is provided in the lower part of the cylinder. Since the upper cylinder part is used to form the pump part of the atomizer and the small diameter cylinder 13 has a liquid intake valve 12 for upright position on the inner surface of the lower part, the small diameter cylinder Compared to the case where the sprayer is installed vertically inside the container, the part that extends vertically into the container is extremely small, so the amount of liquid that can be filled into the container is large, and the main body of the sprayer can be easily attached and detached when replenishing liquid, etc. The structure is also simple and convenient for downsizing the sprayer, and it can be manufactured at a lower cost.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a sprayer having the proposed member, and FIG. 2 is a longitudinal cross-sectional view of a sprayer shown in another embodiment. 2... Cylindrical body, 5... Liquid suction valve for inverted position, 8... Air suction prevention valve for inverted position, 12
...Liquid suction valve for upright position, 13...
Small diameter cylinder.

Claims (1)

[Scope of utility model registration request] An outward retaining flange 3 is made to protrude from the outer periphery of the middle part of the cylindrical body 2, which is open at both upper and lower ends, to the top surface of the container, and a hole is formed in the cylindrical wall in the cylindrical part below the outward flange. The inverted liquid suction valve 5 is formed of a valve hole 6 and an elastically deformable small cylinder body 7 attached to the inner wall of the cylinder.
Furthermore, air suction prevention valves 8 for when standing upside down are provided in the lower cylindrical portion, and the cylindrical portion above the outward flange is used to form the pump part of the sprayer, and a liquid suction valve for when standing upright is provided on the lower inner surface of the cylindrical portion. 12. A member for a sprayer that can be used both vertically and vertically.