JPH1119541A - Invertible liquid ejector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide one sucking-up pipe in a state suspended in appearance by interposing first and second connection cylinders respectively having check valves between the liquid sucking-up cylinder and liquid sucking-up pipe suspended from a liquid ejector so as to coaxially connect the above mentioned cylinder and pipe. SOLUTION: The upper part of a first connection cylinder 5 equipped with a vertical check valve 13 is provided to the lower end part of the liquid sucking-up cylinder 2 communicating with the cylinder of a liquid ejector 1 to suspend from the undersurface of the ejector 1 and the upper part of a second connection cylinder 14 equipped with an inverting check valve 19 is fitted in the lower part of the first connection cylinder 5 to be suspended into a container 31. By this constitution, the liquid sucking-up cylinder 2, the first connection cylinder 5, the second connection cylinder 14 and a sucking-up pipe 23 become one cylindrical state in appearance. Therefore, they are easily takin out of or again suspended into the container 31 along with the liquid ejector 1 in order to supply a liquid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid ejecting container which can be used both upside down.

[0002]

2. Description of the Related Art As shown in, for example, Japanese Utility Model Publication No. 56-20052,
A liquid ejector for both upright and inverted use is known, but in the conventional one, a main pipe of a three-pronged connecting pipe is fitted to a lower end of a cylinder, and an auxiliary pipe that branches downward and protrudes is provided with a suction pipe for upright use. The lower end of the suction pipe for inverted use is fitted to the upper end of the raising pipe, and the lower end of the suction pipe for inversion is inserted into the auxiliary pipe projecting upward and projecting downward and upward, and into the auxiliary pipe projecting downward. Has a check valve for closing the pipe line when it is inverted and a check valve for closing the pipe line when it is erected in the auxiliary pipe projecting upward. Therefore, the two suction pipes for upright and inverted use, the former hangs downward from the lower end of the cylinder while the latter rises upward, and these are integrally connected to the cylinder. Therefore, it is inconvenient to insert and remove the cylinder into and out of the container, and if the container is transparent, the suction pipes can be seen, so that the appearance is impaired.

[0003]

According to the present invention, a first connecting cylinder having a check valve is provided between the liquid suction pipe hanging from the liquid ejector and the suction pipe. By connecting and interposing the second connection cylinder coaxially,
One suction pipe is provided so as to hang down in appearance, thereby eliminating the above-mentioned drawbacks.

[0004]

SUMMARY OF THE INVENTION From the lower surface of a trigger-type or vertical pump-type liquid ejector attached to the mouth and neck of a container, a liquid dripping into the container is communicated with a cylinder of the liquid ejector. The upper portion of the first connecting tube 5 is fitted to the lower end portion of the suction tube 2, the upper portion of the second connecting tube is inserted into the lower portion of the first connecting tube, and the upper portion of the suction pipe 23 is further fitted to the lower portion of the second connecting tube 14. The first connecting cylinder 5 is formed into a large-diameter cylindrical section 7 via an outward flange at a lower portion of the cylindrical section 6 and has a thick inner surface at a lower portion of the cylindrical section above the outward flange. A first valve hole 9 having a meat partition wall 8 laid sideways and opening 9a in the partition wall from the outer surface of the cylindrical portion to the upper surface of the center of the partition wall through the inside of the partition wall.
Water holes 10 communicating the upper and lower portions of the partition wall are formed in the outer peripheral portion of the partition wall on the side of the valve hole, and the upper peripheral edge of the central opening 9a of the partition wall is defined as a first valve seat 11. The upright check valve 13 is formed by the first ball valve 12 mounted on the valve seat, and
A first ball valve support projection 4 is provided on the inner surface of the cylindrical portion or the inner surface of the lower portion of the suction cylinder 2 with an appropriate gap above the ball valve,
The connecting cylinder 14 is provided with an inward flange 15 at the upper end of the cylindrical part to communicate a flange hole 16 of the flange with the water passage hole 10, and the lower surface of the inward flange as a second valve seat 17 to form the second valve seat 17. Second ball valve 18 that can seal flange hole 16 in contact with the valve seat
The second ball valve 18 is supported in the open state of the inverted check valve 19 formed by the second ball valve 18 and the second valve seat 17 while being loosely fitted into the upper portion of the cylinder so as to be vertically movable. Second ball valve support projection 20
Was attached to the inner surface of the cylindrical portion.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Is a trigger type liquid ejector. The liquid ejector may be of a vertical pump type as in the above-described conventional example, and in this case, a suction pipe fitting tube portion that hangs down from the lower end of the cylinder forms a liquid suction tube. Also in the case of the trigger type liquid ejector shown in the figure, the cylinder part conventionally used as the cylinder part for fitting the suction pipe is referred to as the liquid suction cylinder 2. In the case shown in the figure, the lower end of the cylinder is reduced inward in the downward direction, and a plurality of split grooves 3 having an open groove at the lower end are provided. However, these projections may be provided on the inner surface of the upper portion of the first connecting cylinder described later. The reduced diameter facilitates the fitting of the upper part of the first connecting cylinder.

The upper part of the first connecting cylinder 5 is fitted to the lower end of the liquid suction cylinder 2. In the first connecting cylinder, the lower part of the cylindrical part 6 is formed into a large-diameter cylindrical part 7 via an outward flange,
A thick partition wall 8 on the inner surface of the lower part of the cylinder above the outward flange
A first valve hole 9 is formed in the partition wall to open 9a from the outer surface of the cylindrical portion through the partition wall 8 to the upper surface of the center of the partition wall, and an outer peripheral portion of the partition wall on the side of the valve hole. The water passage holes 10 are respectively formed. As shown in FIGS. 3 and 4, the water passage hole 10 has a C-shaped cross section along the outer periphery of the partition wall. The upper peripheral edge of the opening 9a is a first valve seat 11 having a tapered shape having a small diameter below,
The first ball valve 12 is mounted on the first valve seat, and the check valve for erecting is installed.
It is 13. The above-mentioned first ball valve supporting projection 4 is located above the first ball valve 12, and as shown in FIG. 2, when the container is inverted, the first ball valve 12 is supported by the above-mentioned projection.

The upper part of the second connecting tube 14 is fitted into the large-diameter tube portion 7 of the first connecting tube 5. The second connection cylinder has an inward flange 15 at the upper end of the cylinder portion, and the flange hole 16 communicates with the water passage hole 10. The lower surface of the inward flange 15 is a second valve seat 17 having a tapered upper portion with a small diameter. As shown in FIG. 2, when the container body 31 is inverted, the second valve seat 17 is in contact with the second valve seat 17.
A second ball valve 18 capable of sealing a valve hole formed by the valve 16 is loosely fitted into the upper part of the cylinder so as to be vertically movable, and is used for an inverted state formed by the second ball valve 18 and the second valve seat 17. With check valve 19 open,
A second ball valve supporting projection 20 for supporting the second ball valve 18 is provided on the inner surface of the cylindrical portion 21. Grooves 22 are provided vertically on the inner surface of the cylindrical wall between the projections. The projections 20 are elastically deformable so that the second ball valve 18 can be forcibly pushed between the projections and the inward flange 15.

The upper part of the suction pipe 23 is fitted into the lower part of the second connecting cylinder 14, and the suction pipe is suspended from the bottom of the container. In the above configuration, when the liquid is put in the container body 31 and the liquid ejection operation is performed in the upright state of the container body shown in FIG. 1, the inside of the liquid suction cylinder 2 becomes negative pressure due to the negative pressure in the cylinder, At this time, since the first ball valve 12 is mounted on the first valve seat 11 and closes the upright check valve 13, the second ball valve 18
Is open from the second valve seat 17 and opens the inverted check valve 19, so that the suction pipe 23, the second connecting pipe 14, and the first connecting pipe 5
The liquid in the container is sucked into the cylinder through the liquid suction cylinder 2 through the water passage hole 10 of the container.

As shown in FIG. 2, when the container 31 is inverted, the lower end of the suction pipe is exposed above the liquid surface 24 in the container, but the first ball valve 12 is separated from the first valve seat 11 and Since the second ball valve 18 is mounted on the second valve seat 17 and closes the inverted check valve 19, the liquid ejection operation is performed in this state. The liquid in the container is sucked into the first connecting cylinder 5 through the first valve hole 9 and further into the cylinder through the liquid suction cylinder 2.

[0010]

According to the present invention, the first connecting cylinder is provided from the lower surface of the liquid ejector to the lower end of the liquid suction cylinder 2 which is communicated with the cylinder of the ejector and hangs down. 5 upper part, the second connecting pipe 14 upper part into the first connecting pipe lower part,
Furthermore, since the upper part of the suction pipe 23 is fitted to the lower part of the second connection cylinder and is dripped into the container body, the liquid suction cylinder, the first connection cylinder, the second connection cylinder, and the suction pipe are:
It becomes a single tube in appearance, so it is easy to take them out of the container together with the liquid ejector for liquid replenishment, etc., and to drop them again into the container,
A first valve having a thick partition wall 8 provided laterally on the lower inner surface of the first connecting cylinder 5 and opening 9a in the partition wall from the outer surface of the cylindrical portion to the upper surface of the center of the partition wall through the inside of the partition wall. Since the hole 9 is formed, the upper peripheral edge of the opening 9a is used as the first valve seat 11, so that only the first ball valve 12 is placed on the first valve seat 11, and the check valve for erecting is provided. 13, that is, the valve is closed when the container is erected and opened when the container is inverted, and a valve having the first valve hole 9 communicating with the inside of the container at a position above the suction pipe 23 can be formed. On the outer peripheral portion of the partition wall on the side of the first valve hole 9 of the wall,
Since the water hole 10 communicating the upper and lower parts of the partition wall is formed, the upper part of the second connecting cylinder 14 with the check valve 19 for inverting is connected to the lower part of the first connecting cylinder 5 and the lower part of the second connecting cylinder is connected. The liquid suction pipe 23 can be formed as a single cylinder, and a liquid suction passage for a liquid ejector for both front and inverted use can be formed.

[Brief description of the drawings]

FIG. 1 is a side view of a liquid ejection container in an upright state, showing a main part in section.

FIG. 2 is a side view of a cross section of a main part, showing the container in FIG. 1 in an inverted state.

FIG. 3 is an end view taken along the line AA of FIG. 2;

FIG. 4 is an end view taken along the line BB in FIG. 2;

[Explanation of symbols]

 2: Liquid suction cylinder 5: First connection cylinder 13: Non-return valve for erecting 14 ... Second connection cylinder 19: Check valve for inversion

Claims (1)

[Claims] 1. A liquid suction cylinder 2 which is attached to the mouth and neck of a container body and which is communicated with a cylinder of the liquid ejector from a lower surface of a trigger type or vertical pump type liquid ejector and which hangs down into the container body. To the lower end of the first connecting tube 5, the upper portion of the second connecting tube into the lower portion of the first connecting tube, and the second connecting tube.
The upper part of the suction pipe 23 is fitted to the lower part, and the upper part is fitted down to the inside of the container. The lower part of the first connecting cylinder 5 is formed into a large-diameter cylindrical part 7 through an outward flange. A partition wall 8 is provided laterally on the lower inner surface of the cylindrical portion above the orientation flange, and a first valve hole 9 is formed on the partition wall, the opening 9a being opened from the outer surface of the cylindrical portion through the partition wall to the upper surface of the central portion of the partition wall. Water holes 10 communicating the upper and lower portions of the partition wall are formed in the outer peripheral portion of the partition wall on the side of the valve hole, and the upper peripheral edge of the central opening 9a of the partition wall is used as a first valve seat 11 to form the valve. The first ball valve 12 mounted on the seat forms a check valve 13 for erecting, and an appropriate gap is provided above the first ball valve so that the check valve 13 is formed on the inner surface of the cylindrical portion or the lower inner surface of the suction cylinder 2. The one-ball valve support projection 4 is provided, and the second connecting cylinder 14 is provided with an inward flange 15 at the upper end of the cylindrical part, and the flange hole 16 of the flange communicates with the water passage hole 10. Causes, the inward flange lower surface as the second valve seat 17, a sealable flange hole 16 in contact with the second valve seat 2
The ball valve 18 is loosely fitted into the upper part of the cylinder so as to be movable up and down, and the second ball valve is opened when the inverted check valve 19 formed by the second ball valve 18 and the second valve seat 17 is opened. A two-sided liquid jet ejector characterized in that a second ball valve supporting projection 20 for supporting 18 is provided on the inner surface of the cylindrical portion.