JPH0418689Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a liquid ejection container that ejects liquid as it is, or in the form of mist, foam, or the like.

``Prior Art'' This type of container is equipped with a ball-type suction valve at the lower end of a cylinder attached to the container body, as shown in, for example, Japanese Utility Model Application Publication No. 168567/1983, and a ball-type suction valve is provided at the lower end of the cylinder attached to the container body. It has a stem which is movable up and down and whose lower part is inserted in an upward biased state, a cylindrical piston at the lower end of the stem, and a push-down head with a nozzle at the upper end of the stem that stands up from the mouth of the container body. A ball valve type discharge valve is provided in the upper end of the stem of the actuating member, and the liquid in the container is sucked into the cylinder by vertical movement of the actuating member with respect to the container body, and the liquid in the cylinder is It was arranged to eject from the nozzle of the push-down head through the stem.

``Problem that the invention aims to solve'' In the conventional container described above, both the suction valve and the discharge valve are ball valve types, so for example, when the container falls over, the liquid inside the container leaks through these valves. It was hot.

The present invention eliminates such drawbacks by changing the discharge valve, and also changes the push-down head to make the discharge valve easier to form.

"Means for solving the problem" Cylinder 2 with suction valve 7 attached to the container body
It has a stem 12 whose lower part is inserted into the cylinder in a vertically movable manner and in an upwardly biased state, and a cylindrical piston 13 is attached to the lower end of the stem, and a pusher with a nozzle 15b is attached to the upper end of the stem. Lowering head 15
The operating member 1 with the discharge valve 19 attached thereto
1, a blind hole 21 is bored in the lower surface of the push-down head 15, and the base end of the nozzle hole 15a is opened to the upper inner surface, and a cylindrical portion 14 provided separately is inserted into the blind hole. The inside of the cylindrical portion and the nozzle hole 15a are connected and fitted together, and the upper part of the stem is fitted into the cylindrical portion, and an inwardly flange-shaped valve seat 16 is provided on the inner surface of the upper part of the stem 12.
The valve hole formed by the inner periphery of the valve seat is elastically closed by a valve element 18 attached to the lower end of several elastic pieces 17 hanging from the inner surface of the cylindrical part, and the cylindrical part 14, the elastic pieces 17 and the valve The body 18 is integrally molded with a synthetic resin material.

``Operation'' From the state shown in FIG. 1, when the cylinder part 14 hanging down from the push-down head 15 is screwed off from the screw cylinder 9 fixed to the upper end of the cylinder 2, the spring inside the cylinder 2 is removed. 11, the actuating member 11 consisting of the stem 12, the cylindrical portion 14 and the push-down head 15 is raised. When the actuating member is moved up and down several times from the raised state and then pushed down, the suction valve 7 closes due to the high pressure inside the cylinder, the discharge valve 19 opens, and the liquid inside the cylinder flows through the stem and the cylindrical part of the push-down head. It is ejected through the nozzle. Further, when the actuating member is released after being lowered, the spring pushes up the actuating member 11, and the negative pressure inside the cylinder due to the pushing up causes the discharge valve 19 to close, the suction valve to open, and the liquid in the container body 1 to pass through the suction valve 7. It is sucked into the cylinder.

The valve body 18 of the discharge valve is attached to the lower end of several elastic pieces 17 that hang down from the inner surface of the cylindrical part 14 fitted into the push-down head 15, and the valve body is attached to the valve seat 16 by the elastic pieces. Since it is in pressure contact, the discharge valve will not open even if the container falls over.

"Example" 1 is a container body, 2 is a cylinder vertically installed in the container body, and an outward flange 3 attached to the upper part of the cylinder is an inwardly directed cap-like member 4 screwed onto the mouth neck of the container body. The flange-like top wall 5 is sandwiched between the top wall and the top surface of the container body via a packing 6. Ball valve type suction valve 7 at the bottom of the cylinder
A suction pipe 8 is provided vertically from the suction valve into the container body.

A screw tube 9 is fitted into the upper end of the cylinder, and a thread is provided on a cylindrical portion 10 that hangs inward of the cylinder.

The actuating member 11 is urged upward into the cylinder.
The stem 12 of is inserted. The actuating member 11
The nozzle 15b is connected via a cylindrical piston 13 at the lower end of the stem and a separate cylindrical portion 14 at the upper end of the stem.
A push-down head 15 is fitted, and the outer surface of the cylindrical portion 14 is screwed into the screw tube 9. An inward flange-shaped valve seat 16 is provided on the inner surface of the upper part of the stem 12.
A valve body 18 is attached to the lower end of several elastic pieces 17 hanging from the inner surface of the cylindrical portion 14 to the valve seat.
are in pressure contact with each other, and the valve seat 16 and the valve body 18
and form a discharge valve 19. A groove 20 is provided at the upper end of the cylindrical portion 14, and the upper portion of the cylindrical portion is fitted into a blind hole 21 formed in the lower surface of the push-down head 15. The base end of the nozzle hole 15a is opened at the upper inner surface of the blind hole, and the cylindrical portion 14 is inserted through the groove 20.
The inside communicates with the nozzle hole 15a.

The push-down head differs depending on whether the container is one that spews out liquid as it is, a sprayer, or a foam jetter; in the case of spraying, there is a spin mechanism; A mechanism is provided within the nozzle. If the liquid is to be ejected as it is, no special mechanism is required.
Incidentally, these matters are publicly known.

The actuating member 11 is urged upward by a coil spring 22 housed in the bottom of the cylinder.

In addition, when the operating member is lowered, the stem 1 is inserted into the cylinder.
An auxiliary member 23 that closes the lower end surface of the suction valve 7 is installed inside the valve 2, and a presser foot 25 that prevents the ball valve of the suction valve 7 from being pulled out from the valve chamber is hung from the top wall 24 of the member. The auxiliary member may be provided as necessary, and the threaded connection between the spiral tube 9 and the cylindrical portion 14 is provided to prevent the container from becoming bulky during transportation.
Not necessarily necessary.

``Effect of the invention'' Since the present invention has a structure that has the above-mentioned effect, even if the container falls down like in the case of a ball valve, the discharge valve body 18 will not leave the valve seat by itself, and the discharge valve will There is no leakage of fluid through the valve, and since the push-down head 15 and the cylindrical portion 14 are fitted as separate members, and the cylindrical portion 14, the elastic piece 17, and the valve body 18 are integrally molded from a synthetic resin material, The cylindrical portion does not have a very complicated structure, and the discharge valve 19 can be easily formed by the valve seat 16 in the upper part of the stem and the valve body.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of the container of the present invention, and FIG. 2 is a perspective view with some of the main components of the container cut away. 2...Cylinder, 11...Operating member, 19...
discharge valve.

Claims (1)

[Scope of utility model registration request] Cylinder 2 with suction valve 7 attached to the container body
It has a stem 12 whose lower part is inserted into the cylinder in a vertically movable manner and in an upwardly biased state, and a cylindrical piston 13 is attached to the lower end of the stem, and a pusher with a nozzle 15b is attached to the upper end of the stem. Lowering head 15
The operating member 1 with the discharge valve 19 attached thereto
1, a blind hole 21 is bored in the lower surface of the push-down head 15, and the base end of the nozzle hole 15a is opened to the upper inner surface, and a cylindrical portion 14 provided separately is inserted into the blind hole. The inside of the cylindrical portion and the nozzle hole 15a are connected and fitted together, and the upper part of the stem is fitted into the cylindrical portion, and an inwardly flange-shaped valve seat 16 is provided on the inner surface of the upper part of the stem 12.
The valve hole formed by the inner periphery of the valve seat is elastically closed by a valve element 18 attached to the lower end of several elastic pieces 17 hanging from the inner surface of the cylindrical part, and the cylindrical part 14, the elastic pieces 17 and the valve A liquid ejection container characterized in that a body 18 and a body 18 are integrally molded from a synthetic resin material.