JPH0616275U - Spray container cap - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a cap for a spray container having a simple structure and capable of continuously ejecting a liquid. [Composition] A knocking body (7) provided with a mounting portion (1a) for detachably mounting to a spray container at a lower portion and having an ejection port (7a)
Is provided on the upper part so that it can slide up and down, and a tubular valve rod 4 is provided on the upper part of the hollow conical valve body 3 with a bottom so as to communicate with the hollow inside of the valve body and connect the upper end to the knock body. A cylindrical portion 6 for integrally guiding the valve rod is provided on an upper portion of the valve seat 5 which is provided integrally with the valve body and rises in an upwardly tapered shape from the peripheral edge of the opening 7b formed in the center of the cap, following the outer surface of the valve body. By providing a stopper 4a on the upper outer side of the valve rod slidably inserted into the tubular portion, and interposing a valve spring 8 made of a compression spring between the stopper and the upper edge of the opening end of the tubular portion. An upward returning force is applied to the valve rod, and a valve hole 3a is formed on the side surface of the valve body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cap used in a spray container for ejecting a spray liquid.

[0002]

[Prior art]

 FIG. 5 is a cross-sectional view showing an example of a conventional spray container cap. In the figure, reference numeral 31 is a cap, 32 is a knocking body for pushing down the piston 33, and 34 is an inside for sliding the piston up and down. Shows a cylinder.

A mounting portion 31a for mounting to the opening of the spray container is provided on the inner peripheral surface of the lower portion of the cap 31, and a knock body 32 is mounted on the upper portion of the cap so as to be slidable up and down. .

An upper end of an opening of a cylinder 34 is attached to the inner surface of the cap 31 so as to communicate with an opening 31b formed in the center of the cap 31, and a diametrically expanded lower portion 33a of a piston 33 formed in a cylindrical shape that opens up and down. Is capable of sliding up and down while being in contact with the inner wall of the cylinder 34.

When the knock body 32 is pushed with a finger, the piston 33 is pushed down against the ascending return force of the compression spring 36 provided in the cylinder 34, and at this time, the valve V _B provided at the lower portion of the cylinder is closed. As a result, the pressure in the cylinder rises, so that the valve element A provided at the upper end of the piston is pushed up and the valve V _A is opened.

When the finger is released from the knock body 32, the piston 33 is pushed up by the spring pressure of the compression spring 36 to reduce the pressure in the cylinder, and the valve V _A is closed, while the valve body B is lifted and the valve V is lifted. _B is opened, and the liquid in the spray container is sucked into the cylinder from the tube 37 connected to the lower part of the cylinder.

The liquid sucked into the cylinder passes through the piston 33 when the knock body is pushed again, and is ejected from the ejection port 35 to the outside through the valve V _A.

[0008]

[Problems to be solved by the device]

 The above-mentioned spray container cap has a drawback that the structure is complicated, the number of parts is large, and the manufacturing cost is high. In addition, since the conventional type is designed to eject a fixed amount of liquid each time the knock body is pushed, continuous ejection is not possible, and if a large amount of liquid is to be ejected, the knock body should be ejected. I had to press it many times.

An object of the present invention is to provide a cap for a spray container having a simple structure and capable of continuously ejecting a liquid.

[0010]

[Means for Solving the Problems]

 In order to achieve the above object, the spray container cap of the present invention is provided with a mounting portion for detachably attaching to the spray container at a lower portion, and a knock body having an ejection port is provided at an upper portion so as to be slidable up and down, A tubular valve rod, which communicates with the hollow inside of the valve body and connects the upper end to the knock body, is provided integrally with the valve body at the upper part of the hollow conical valve body with a bottom, and an opening opened in the center of the cap. The upper part of the valve seat, which rises from the peripheral edge along the outer surface of the valve body in an upwardly tapered shape, is provided with a tubular part that guides the valve rod up and down, and the upper part of the valve rod slidably inserted into the tubular part. By providing a stopper on the outside and interposing a valve spring consisting of a compression spring between this stopper and the upper edge of the open end of the cylinder, a rising return force is applied to the valve rod, and the valve is attached to the side surface of the valve body. It has a hole.

[0011]

[Action]

 When the knock body is not pushed, the valve rod and the valve body are pulled up by the ascending force applied by the valve spring, so that the outer surface of the valve body is pressed against the inner surface of the valve seat from below. Block the valve hole and stop the flow of liquid.

On the other hand, when the knock body is pushed, the valve rod lowers together with the valve body against the spring pressure of the valve spring, which causes a gap between the inner surface of the valve seat and the outer surface of the valve body to form the valve hole. The spray liquid is released and enters the valve body through the valve hole due to the hydraulic pressure in the spray container, and then ejects from the ejection port of the knock body through the tubular valve rod.

[0013]

【Example】

 Hereinafter, a specific example of the spray container cap of the present invention will be described in detail with reference to FIGS. FIG. 1 is a vertical cross-sectional view of a spray container cap according to the present invention. In the figure, reference numeral 1 is a cap, 2 is a spray nozzle body, 3 is a valve body for opening and closing the flow of liquid, and 4 is a valve. A valve rod 5 for moving the body up and down is a valve seat provided at the center of the cap, and 7 is a knock body for opening and closing the valve.

The cap 1 is provided with a mounting portion 1a formed with a thread or the like for attaching to a spray container on the inner peripheral surface thereof, an opening 1b is provided at the center of the cap, and an upper portion of the cap 1 is provided. Is provided with a nozzle body 2 having a valve.

The valve of the nozzle body 2 has a unique structure, and the bottomed valve body 3 formed in the shape of a hollow cone has a tubular shape whose upper part communicates with the hollow interior of the valve body and opens the upper end. A valve rod 4 is provided, and a plurality of valve holes 3a are formed in the side surface of the valve body 3.

The valve seat 5 rises from the peripheral edge of the opening 1b formed in the center of the cap in a tapered shape that follows the outer surface of the valve body 3, and the upper end of the valve seat 5 is opened to allow the valve rod 4 to move up and down. The inner cylindrical portion 6 is provided, and a peripheral groove is formed on the inner peripheral surface near the upper opening end of the cylindrical portion 6 to form an O-ring 6a for preventing liquid from leaking between the valve rod and the cylindrical portion. It is fitted in the circumferential groove.

A valve rod 4 following the upper portion of the valve body 3 is inserted into the tubular portion 6 from below the tubular portion so that the valve rod 4 can slide up and down in the tubular portion 6, and is provided outside the upper portion of the valve rod 4. A valve spring 8 made of a compression spring is interposed between the stopper 4a and the upper edge of the open end of the tubular portion, and the valve spring 8 imparts an ascending force to the valve rod 4 and thereby the valve rod 4 and the valve body. 3 is lifted so that the outer surface of the valve body 3 is pressed against the inner surface of the valve seat 5 from below.

Further, the upper end of the valve rod 4 is fitted with an inner cylinder portion 7b of a knock body 7 for opening and closing the valve by vertically moving the valve body and the valve rod, and the inner cylinder portion is provided on a side surface of the knock body. A jet port 7a for leading the liquid out of the inside of 7b is provided. The diameter of this ejection port is appropriately determined according to the viscosity of the spray liquid. Reference numeral 9 in the figure is a guide that is erected on the upper surface of the cap in order to guide the knocking body in the vertical direction.

The spray container cap configured as described above is used by being attached to the opening of a spray container provided with a means for pressurizing the liquid in the container, but the liquid can be supplied without using gas pressure such as liquefied gas. FIG. 2 shows an example of a spray container in which the cap of the present invention is attached to a container to be pressurized.

In the figure, reference numeral 10 is a body for a container, 11 is an adjusting cylinder for adjusting the pressure of a liquid, 13 is a container containing a liquid for spraying, and the upper part of the cylindrical body 10 is compressed. A diameter portion 10a is provided, an upper screw portion 10b is formed on the outer periphery of the reduced diameter portion 10a, and the mounting portion 1a formed on the lower inner peripheral surface of the cap 1 is screwed into the screw portion 10b on the outer periphery of the reduced diameter portion. The body 10 is attached to the cap 1 so as to be detachable.

Also, a lower threaded portion 10c is formed on the outer periphery of the lower portion of the body 10, and a threaded portion 11a formed on the inner peripheral surface of a bottomed adjustment cylinder 11 whose upper portion is opened is screwed into the lower threaded portion 10c of the body. Have been combined. The adjusting cylinder 11 has a compression spring 12 inside, and a seat plate 14 for pushing up the bottom of the container 13 is provided at the upper end of the adjusting cylinder 11 so that it can slide up and down along the inner wall of the body. There is.

Inside the body 10, a container 13 containing a liquid for spraying is stored. The container 13 is a flexible, for example, bellows-shaped synthetic resin container, and has a thickness formed above the opening. The meat portion 13a is fitted into the reduced diameter portion 10a of the body 10 from the inside, and the opening edge of the container is clamped between the upper end of the reduced diameter portion of the body and the seal 15 attached to the inner surface of the cap 1.

The above-mentioned spray container equipped with the cap of the present invention is used as follows. When the adjusting cylinder 11 of the spray container is rotated forward and backward, the adjusting cylinder 11 is guided by the lower screw portion 10c of the body to move up and down, whereby the spring pressure of the compression spring 12 is adjusted and the spring of this compression spring is adjusted. The seat plate 14 to which a rising force is applied by the pressure pushes up the bottom portion of the container 13 filled with the liquid for spraying and applies pressure to the liquid in the container.

By pushing the knock body 7 with a finger, the valve rod 4 is pushed down together with the valve body 3 against the spring pressure of the valve spring 8 as shown in FIG. 3, and the outer surface of the valve body 3 and the valve seat 4 are pushed. A gap is formed between the inner surface of the valve seat 3 and the inner surface of the valve seat 4, and the valve hole 3a on the side surface of the valve body, which is blocked by the inner surface of the valve seat 4, is opened.

The liquid in the container 13 enters the valve body from the valve hole 3c by the pressure in the container, passes through the valve rod, passes through the inner cylinder portion 7b of the knock body 7, and is ejected to the outside from the ejection port 7a.

Since the valve hole 3a is opened while the knock body 7 is pushed, the liquid in the container is continuously ejected, but when the finger is released from the knock body, the valve body 3 and the valve rod 4 are separated from each other. The valve spring 8 raises the pressure by the rising return force applied by the valve spring 8 and the pressure of the liquid applied to the bottom surface of the valve element, whereby the side surface of the valve element presses the valve hole 3a from the lower side to the inner surface of the valve seat. The hole 3a is closed and the ejection of the liquid is stopped.

In the above embodiment, the O-ring 6a is fitted on the inner circumference of the tubular portion 6 so that the spray liquid does not leak from between the valve rod 4 and the tubular portion 6. In addition, as shown in the longitudinal sectional view showing the valve portion in an enlarged manner in FIG. 4, a step portion 16 that surrounds this side surface is formed in a convex shape on the outer side surface of the valve body, and the valve seat facing the step portion 16 is formed. A circumferential groove 17 is formed on the inner surface of the valve so that when the knocking body 7 is not pushed, these are fitted together, so that the liquid for spraying leaks more securely between the valve rod and the tubular portion. It can also be prevented.

[0028]

[Effect of device]

 According to the spray container cap of the present invention, the structure of the valve provided in the cap is simple, the number of parts is small, and the manufacturing cost can be reduced. Also, since the valve is open while the knock body is being pushed, the spray liquid can be continuously ejected.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an example of a spray container cap according to the present invention.

FIG. 2 is a vertical cross-sectional view showing an example of a spray container provided with a cap of the present invention.

FIG. 3 is a vertical sectional view showing a state in which a valve is opened.

FIG. 4 is a partially enlarged vertical sectional view showing another embodiment of the present invention.

FIG. 5 is a vertical cross-sectional view showing a conventional spray container cap.

[Explanation of reference numerals] 1 cap 1a mounting portion 2 nozzle body 3 valve body 3a valve hole 4 valve rod 4a stopper 5 valve seat 6 tubular portion 6a O-ring 7 knock body 7a ejection port 7b inner tubular portion 8 valve spring 9 guide 10 body 11 Adjustment Cylinder 12 Compression Spring 13 Body 14 Seat Plate 15 Seal 16 Step Part 17 Circumferential Groove

Claims (1)

[Scope of utility model registration request] 1. A hollow conical valve body having a bottom portion provided with a mounting portion for detachably attaching to a spray container, and a knock body provided with a jet outlet provided at an upper portion so as to be slidable up and down. On the upper part, a tubular valve rod that communicates with the hollow inside of the valve body and connects the upper end to the knock body is provided integrally with the valve body, and follows the outer surface of the valve body from the peripheral edge of the opening formed in the center of the cap. At the top of the valve seat that rises in a tapered shape,
A cylindrical portion for guiding the valve rod up and down is provided, and a stopper is provided outside the upper part of the valve rod slidably inserted into the cylindrical portion, and a compression spring is provided between the stopper and the upper edge of the opening end of the cylindrical portion. A spray container cap in which a valve spring made of is intervened to impart a rising return force to the valve rod, and a valve hole is formed in the side surface of the valve body.