JPH0718605Y2 - Liquid injection container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to a manually operated liquid injection container for injecting a storage liquid such as a detergent.

"Prior Art" As is well known, this type of liquid injection container has a nozzle tube head connected to the upper end of the stem that is erected upward from the cylinder installed inside the mouth of the container body, and this pressing head is By pushing down against the return spring, the tubular piston at the lower end of the stem pressurizes the liquid in the cylinder, and the liquid itself opens the discharge valve in the stem to release it from the nozzle pipe. It is what is ejected.

When the liquid injection is completed, the cylindrical piston, stem,
The moving part of the push-down head returns upward by the return spring,
Utilizing the fact that the pressure inside the cylinder becomes negative due to this return, liquid is sucked up from the container body into the cylinder.

[Problems to be solved by the invention] As described above, the nozzle tube of this type of container is provided on the push-down head at the upper end of the stem, so that when pushing down and pouring, it moves downward together with the push-down head. Then, the pouring outlet at the tip of the nozzle tube fluctuates, which is inconvenient when it is desired to determine the injection position.

In this plan, the stem is divided into a movable stem for pressurization that can be pushed down and a fixed stem for pouring that has a nozzle tube and does not change during the pressing operation, so that injection can be performed with the nozzle tube position fixed. In order to obtain the liquid injection container.

"Means for Solving the Problem" The container body 1 and the mouth / neck portion 5 of the container body 1 are internally fixed.
A cylinder 2 having a bottom opening cylinder 6 having a small diameter at its lower portion and a cylindrical piston 8 fitted in the cylinder 2 at its lower end are fixedly communicated with each other so as to project above and outside the cylinder 2, and its upper end is closed by a top plate 9 and an upper portion. A movable window 3 having a vertically long window 10 formed on one side and being constantly pushed up to an upper limit position by a return spring 11,
A hole 12 communicating with the cylinder 2 is bored in the lower part of the cylinder 2 from the bottom opening cylinder 6 to the vicinity of the window 10 of the movable stem 3, and a suction valve 7 is provided below the hole. In addition, a discharge valve 13 is provided at the upper part, a nozzle pipe 14 protruding laterally outward from the lower part of the window 10 is connected and fixed at the upper end, and the inner peripheral surface of the cylindrical piston 8 is liquid-tightly pressed against the outer surface. The fixed stem 4, a suction pipe 20 vertically extending from the lower end of the fixed stem to the bottom of the container body 1, and an inward flange shape on the upper end of the base cylinder part fitted to the outer surface of the neck 1 of the container body 1. Attach a wall,
A guide cylinder 18 standing upright from the inner peripheral edge of the inward flange-shaped wall is formed by a mounting member 17 fitted to the outer surface of the intermediate portion of the movable stem 3.

[Operation] In the above, the movable stem 3 is normally pushed up to the upper limit position by the return spring 11 as shown in FIGS. 1 and 2a, and the upper part of the window 10 is opened above the nozzle tube 14 at this position. The cylinder 2 and the fixed stem 4 communicating with the cylinder 2 are filled with liquid.

Here, at the time of liquid injection, the movable stem 3 is pushed down against the return spring 11 via the top plate 9, and the liquid in the cylinder 2 and the fixed stem 4 is pressurized via the cylindrical piston 8. When the pressurized liquid reaches a predetermined liquid pressure, the discharge valve 13 is opened and ejected from the nozzle pipe 14. That is, the nozzle tube 14 is in a stationary state, so that the nozzle tube 14 can be accurately ejected at a predetermined position.

When the pushing down is stopped, the movable stem 3 is returned upward by the return spring 11, whereby negative pressure is generated in the cylinder 2 and the fixed stem 4, and the suction valve 7 is opened to suck the liquid from the container body 1. increase.

[Embodiment] An embodiment will be described below with reference to the drawings. The present invention has a movable stem 3 for pressurizing the stem and a nozzle tube 14 for pouring that does not fluctuate during a pressing operation. It is characterized in that it is divided into a fixed stem 4 and a nozzle tube 14 which can be ejected in a fixed state.

The container body 1 has threads formed on the outer surface of the mouth / neck portion 5.

The cylinder 2 has a vertical tubular shape, and is formed into an opening tube 6 having a reduced diameter at the bottom, and an outward flange 15 at the upper end is hung on the mouth / neck part 5 through the packing 16 on the top surface of the mouth / neck part. 5, it is screwed to the outer surface of the mouth / neck 5 and is fixed by a mounting member 17 described later.

The movable stem 3 has a lower end to which a cylindrical piston 8 which is fitted in the cylinder 2 is fixedly connected, and the movable stem 3 is moved from the cylinder 2 to a guide cylinder 18 described later.
It is projected upward, the upper end opening is closed by a top plate 9, and a vertically long window 10 is opened at one side of the upper part.
As shown in the figure, it is urged to push up to the upper limit position. The cylindrical piston 8 has first and second inner and outer peripheral surfaces partially arcuate in section.
The elastic peripheral walls 8a and 8b are formed, and the second elastic peripheral wall 8b is elastically contacted with the inner wall surface of the cylinder 2 to be liquid-tight.

The lower portion of the fixed stem 4 is the bottom opening cylinder 6 of the cylinder 2.
Fixed to the movable stem 3 from the inner bottom of the cylinder 2.
Is installed upright on the shaft center up to the vicinity of the window 10, and a suction pipe 20 that hangs down in the container body 1 is connected and fixed to the lower portion that penetrates, and a suction valve 7 is provided immediately above the suction pipe 20. Immediately above the bottom opening cylinder 6, several holes 12, 12 communicating with the cylinder 2 are opened, a discharge valve 13 is provided on the upper part, and the upper end projects outward from the lower part of the window 10. The nozzle tube 14 for communication is fixed in communication. Further, on the lower outer surface of the fixed stem 4,
The first elastic peripheral wall 8a of the cylindrical piston 8 is brought into pressure contact.

The mounting member 17 is provided with an inward flange-shaped wall at the upper end of the base cylinder part screwed onto the outer surface of the container mouth neck 5, and a guide cylinder 18 standing upright from the inner peripheral edge of the inward flange is provided in the middle of the movable stem 3. The locking cylinder 19 fitted to the outer surface and vertically extending from the inner peripheral edge of the inward flange-shaped wall is fitted to the upper inner surface of the cylinder 2, and the lower end of the locking cylinder 19 is set to the second side of the cylindrical piston 8. The upper limit position of the cylindrical piston 8 is determined by contacting the upper end of the elastic peripheral wall 8b.

According to this embodiment, the movable stem 3 comprises a nozzle tube 14 of the window 10.
The movable stem can be pushed down only by the size of the upper portion, and this movable stem can pressurize the liquid in the cylinder 2 and the fixed stem 4 via the cylindrical piston 8, so that the liquid is stopped through the fixed stem 4 by the pushing operation. It can be ejected from the nozzle tube 14 in the state.

The above-mentioned parts are molded and manufactured from synthetic resin material.

[Advantage of the Invention] As described above, the container of the present invention has the stem, which has the cylindrical piston 8 at the lower end and can be pushed down and is movable by the movable stem 3.
And a fixed stem 4 for pouring, which has a nozzle tube 14 and communicates with the cylinder 2 and does not move during a pressing operation, and is formed so that the pressurized liquid can be injected in a stationary state with the nozzle tube 14 fixed. Therefore, the injection operation does not cause the pouring outlet at the tip of the nozzle tube 14 to fluctuate as in the conventional case, and therefore, it is convenient when it is desired to inject accurately at a predetermined location. 2 is formed and the cylindrical piston 8 formed at the lower end of the movable stem 3 is fitted into the cylinder, the amount of depression of the movable stem 3 during pouring can be adjusted by appropriately adjusting the diameter of the cylinder 2. Since the length of the movable stem 3 portion projecting upward from the nozzle tube 14 can be shortened, the length of the movable stem 3 portion projecting above the container body can be appropriately shortened. ,
Since the guide cylinder 18 of the mounting member is fitted to the lower outer surface of the movable stem 3, the movable stem 3 can be pushed down by gripping the outer surface of the guide cylinder 18 which is positionally close to the top plate 9 on which the fingertip is hung when pouring. The pressing is easy, and the quantitative liquid can be easily obtained.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the container of the present invention, and FIGS. 2a and 2b are perspective views of the same embodiment at a normal time and when it is pushed down. 1 ... container body, 2 ... cylinder, 3 ... movable stem, 4
...... Fixed stem

Claims (1)

[Scope of utility model registration request] 1. A container body 1, a cylinder 2 which is internally fixed to a mouth / neck portion 5 of the container body 1 and has a lower portion having a bottom opening cylinder 6 having a small diameter, and a cylindrical body which is fitted into the cylinder 2 at a lower end thereof. Piston 8
And fixed to communicate with the cylinder 2 so as to project to the outside of the upper part of the cylinder 2, the upper end is closed by a top plate 9, and a vertically long window 10 is opened on one side of the upper part.
The movable stem 3, which is constantly pushed up to the upper limit position by a return spring 11, and the axial core portion from the bottom opening cylinder 6 of the cylinder 2 to the vicinity of the window 10 of the movable stem 3, are erected on the lower portion of the cylinder 2 Is provided with a suction valve 7 at the lower part of the hole, a discharge valve 13 at the upper part thereof, and a nozzle pipe 14 projecting laterally outward from the lower part of the window 10 at the upper end. Then, the fixed stem 4 in which the inner peripheral surface of the cylindrical piston 8 is in liquid-tight contact with the outer surface, the suction pipe 20 hung from the lower end of the fixed stem to the bottom of the container body 1, and the container body 1 An inward flange-shaped wall is attached to the upper end of the base cylinder portion fitted to the outer surface of the mouth / neck portion 5, and the guide cylinder 18 standing upright from the inner peripheral edge of the inward flange-shaped wall is fitted to the outer surface of the intermediate portion of the movable stem 3. And a mounting member (17).