JPH06171663A - Pump for bubble - Google Patents

Abstract

PURPOSE:To make a released substance into a fine bubble state and prevent leakage of the content liquid by a method wherein the piston chamber of a piston mechanism is arranged integrally with a cover, the piston chamber forms a flow passage through an inflow port from a container arranged to a cylinder part, and a flow passage is made to communicated with the injection nozzle of an injection head part. CONSTITUTION:When a press button type injection head part 2 is pressed against the force of a spring, a piston part 4 is lowered in a manner to be guided by a cylinder part 3 of a piston mechanism 4, and the volume of a piston chamber 19 comprising the cylinder part 3 and the piston part 4 is reduced. A content in the piston chamber is raised through a through-hole formed in the central part of the piston 4 part. However, in this case, the content is brought into contact with air sucked through a peripheral edge part 13 of a piston head part an on-off valve 12 for intake air and forms a bubble-like substance for injection. This constitution causes injection of a released substance through an injection nozzle 22 to the outside in a fine bubble state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foam pump, and more particularly to a manual foam ejection pump.

[0002]

2. Description of the Related Art It has been conventionally practiced to foam a content liquid in a container into a foam by a manual foam ejection pump. However, when releasing in the form of bubbles, it is difficult to make the state of the bubbles of the released substance into a fine bubble state, and the related persons have been struggling with the countermeasure.

[0003]

SUMMARY OF THE INVENTION The present invention aims to solve the above problems.

[0004]

The present invention comprises a contents container lid, a push button type injection head, and a piston mechanism interposed between the lid and the injection head, and the piston chamber of the piston mechanism. Is provided integrally with or separately from the lid, and the space formed by the sliding relationship between the cylinder portion and the piston portion serves as the piston chamber, and the flow from the contents container provided in the cylinder portion. The piston chamber is made to be a flow path through an inlet so that the flow path can be communicated with the injection port of the injection head, and the flow path is normally closed by a check valve,
When operating the jet head, open the check valve to open the flow path,
The content in the container provided on the lid is brought into contact with the air sucked into the piston chamber from the outside to generate bubbles, which can be ejected in the form of bubbles from the injection port provided on the push button type injection head to the outside. This is the foam pump.

[0005]

When the push button type injection head of the foam pump of the present invention is pressed against the spring, the piston portion descends while guiding the cylinder portion of the piston mechanism, and is formed by the cylinder portion and the piston portion. The volume of the piston chamber is reduced, and the contents inside the piston chamber are raised through a through hole provided in the center of the piston portion, and at this time, the contents are provided at the peripheral portion of the piston head and an appropriate portion of the piston head. Further, the foam pump of the present invention has a large number of communication holes made of a stretchable material in the cylinder portion for the piston mechanism, in contact with the air sucked from the intake on-off valve to be ejected as a foam. A foamed material of a desired size is provided by contacting the intake on-off valve and the air sucked into the piston chamber from the peripheral portion of the piston head, which is made of a material having Can. In addition, by appropriately selecting the stroke amount of the piston portion and the diameter of the cylinder portion, the ejection amount of the foam can be adjusted. When the push button type injection head is pressed, the ball check valve located in the lower end opening of the cylinder portion for the piston mechanism is closed, and the ball check valve in the valve chamber provided in the injection head is foamed. Is pushed up and foam is ejected from the ejection port. Therefore, the ball-shaped check valve in the valve chamber provided in the injection head is normally placed in the upper end opening of the piston head supporting tubular portion, and the opening is closed. Then, when the push button type injection head is pressed against the spring, the piston portion is lowered by guiding the cylinder portion of the piston mechanism, and the volume of the piston chamber formed by the cylinder portion and the piston portion is reduced, The contents in the piston chamber are lifted up through a through hole provided in the center of the piston part, but at that time, they come into contact with the air sucked from the peripheral part of the piston head to form a foam and spout out. On the other hand, the ball check valve located at the lower end opening of the piston mechanism cylinder portion is closed, and the fluid contained in the piston mechanism cylinder portion is blocked by the ball check valve inside the container. It does not flow back into. Then, when the pushing of the push button type jet head is stopped, when the push button type jet head is pushed up by the elastic force of the spring provided inside the jet head, the ball check valve located at the lower end opening of the piston chamber Is floated by the negative pressure in the piston chamber and the content liquid in the container flows into the piston chamber. By repeating this, the content liquid in the container flows into the piston chamber and is ejected as a foam from the ejection port provided in the ejection head.

[0006]

[Embodiment 1] A cylinder portion for a piston mechanism is provided in a central portion of a lid for a contractible container in a downward or inward direction, and a cylindrical projecting portion having an open upper portion in an upward or outward direction of a central portion of the lid is provided, and the protrusion thereof is provided. It is a foam pump which can be made to guide a lower peripheral surface part of a push button type injection head part.

[0007]

[Embodiment 2] An upward biasing spring for a push button type injection head is provided by a spring seat having an intake hole provided at the base of a cylinder portion for a piston mechanism of a container lid and a tubular portion guide hole for supporting a piston head. It is a foam pump that supports the lower end.

[0008]

[Embodiment 3] A piston chamber in a piston mechanism cylinder portion is filled with a stretchable fluid-permeable material having an appropriate mesh, and air sucked from the outside by the fluid-permeable material is brought into contact with a content liquid in a container. It is a foam pump capable of forming a foam.

[0009]

[Embodiment 4] A through hole portion of a lower bottom portion of a cylinder portion for a piston mechanism is projected downward, a ball check valve is positioned at an upper end opening portion of the through hole portion, and the ball check valve is provided above the ball check valve. A piston head having a peripheral edge of a thin-film cylindrical structure is provided above the fluid-permeable material such as moltoprene, and the lower end peripheral edge of the piston head is vertically aligned with the inner peripheral surface of the piston mechanism cylinder portion. It is a foam pump that can be slidably operated.

[00010]

[Embodiment 5] A push button type injection head is attached to the upper end of a piston head supporting tubular portion having a piston head at the lower end and an opening at the upper end, and the injection head is provided. A space that communicates with the injection port of is made into a valve chamber, and a ball check valve is arranged in the valve chamber, and the opening at the upper end of the piston head supporting tubular portion is normally provided by the ball check valve. It is a foam pump which is closed so that the ball check valve can be opened when the push button type injection head is activated.

[00011]

[Embodiment 6] A member made of a material having a large number of communicating holes made of a stretchable material is arranged in a cylinder portion for a piston mechanism, and a piston head capable of vertical movement is arranged on the member, and the piston is formed. When the head moves up and down, air is sucked from the intake on-off valve provided in the piston head and the peripheral portion of the piston head into a member made of a material having a large number of communication holes made of the above-mentioned expandable material, and the inside of the container This is a foam pump that allows air to come into contact with the content liquid sucked up from the foam to make it into a foam state.

[00012]

[Embodiment 7] A foam pump in which a liquid content suction pipe is connected to a cylindrical downward projecting portion at the lower end of a cylinder portion for a piston mechanism.

[00013]

[Embodiment 8] A bamboo-shaped coil spring is arranged around the tubular portion for supporting the piston head, and when the jet head fixed to the upper end of the tubular portion is pressed, the coil spring can be used to restore the head. It is a foam pump.

[00014]

[Embodiment 9] A foam pump in which an intake on-off valve is formed on the back side of the piston head, and the valve is formed near the central opening of the piston head supporting tubular portion.

[00015]

[Embodiment 10] A piston head forming a piston chamber is positioned under a spring seat having an intake hole and a piston head supporting tubular portion guide hole. It is a pump in which a valve piece is attached to a piston head by a support member.

[00016]

[Embodiment 11] A foam pump in which the bottom of a piston chamber has a conical shape, and the position of a through hole at the center thereof is at the base of a cylindrical downward projecting portion for mounting a liquid suction tube.

[00017]

[Example I2] A foam pump in which the liquid suction pipe can be detached from the root of the cylindrical downward projection for mounting the liquid suction pipe and can be used upside down.

[00018]

[Embodiment 13] A foam pump in which an intake on-off valve made of a soft synthetic resin or a soft synthetic rubber is provided at a piston head forming a piston chamber.

[00019]

[Embodiment 14] A foam pump capable of closing the intake on-off valve when the piston is pressed and opening the intake on-off valve when the piston is pulled up.

[00020]

[Embodiment 15] A check valve mechanism provided in a flow passage in a push button type injection head is opened when the injection head is pressed,
It is a foam pump that can close the check valve mechanism when the pressure on the jet head is released.

[00021]

Sixteenth Embodiment A check valve mechanism provided at the bottom of a piston chamber can be closed when the injection head is pressed, and the check valve mechanism can be opened when the injection head is released. It is a bubble pump.

[00022]

[Effect] When the push button type injection head of the bubble pump of the present invention is pressed against the spring, the piston portion is guided down by the cylinder portion of the piston mechanism, and is formed by the cylinder portion and the piston portion. The volume of the piston chamber is reduced, and the contents inside the piston chamber are lifted up through a through hole provided in the center of the piston part, but at that time, it is sucked from the peripheral part of the piston head and the intake on-off valve. The bubble pump of the present invention is provided with a member made of a material having a large number of communicating holes, which is a stretchable material, in the cylinder portion for the piston mechanism. However, there is an effect that a foam having a desired size can be obtained. Further, there is an effect that the ejection amount of the foamy matter can be adjusted by appropriately selecting the stroke amount of the piston portion and the diameter of the cylinder portion. When the push button type injection head is pressed, the ball check valve located in the lower end opening of the cylinder portion for the piston mechanism is closed, and the ball check valve in the valve chamber provided in the injection head is foamed. Has the effect that it can be pushed up and the foam can be surely ejected from the ejection port. The ball check valve in the valve chamber provided in the injection head is normally placed in the upper end opening of the piston head supporting tubular portion and the opening is closed. When the injection head is pressed against the spring, the piston portion is lowered by guiding the cylinder portion of the piston mechanism, the volume of the piston chamber formed by the cylinder portion and the piston portion is reduced, and the inside of the piston chamber is reduced. The contents are lifted up through a through hole provided in the center of the piston part, and at that time, they come into contact with the air sucked from the peripheral part of the piston head, form a foam, and blow out, and as the air flows in. There is an effect that the air and the content liquid in the piston chamber can be rapidly contacted to form bubbles and be ejected. At that time, the ball check valve located at the lower end opening of the piston mechanism cylinder portion is closed, and the fluid contained in the piston mechanism cylinder portion is blocked by the ball check valve and enters the container. It has the effect of preventing backflow. Then, when the pushing of the push button type jet head is stopped, the push button type jet head is pushed up by the elastic force of the spring provided inside the jet head, and thereby the ball located at the lower end opening of the piston chamber. The check valve is floated by the negative pressure in the piston chamber so that the content liquid in the container flows into the piston chamber.By repeating this, the content liquid in the container flows into the piston chamber and the injection is performed. There is an effect that bubbles are surely ejected from the ejection port provided on the head. Further, the foam pump of the present invention, since the peripheral portion of the piston head of the piston mechanism is formed in a thin film form, it is intimately slidable in close contact with the inner peripheral surface of the cylinder portion for the piston mechanism, and air easily enters, And, there is an effect that the content liquid in the piston chamber does not leak to the outside. Further, since the intake opening / closing valve is provided on the piston head of the piston mechanism, there is an effect that the outside air can be easily taken into the piston chamber.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a foam pump of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Lid for container 2 Push button type injection head 3 Cylinder part for piston mechanism 4 Piston part 5 Ball check valve 6 Ball check valve 7 Cylindrical downward projection 8 Intake hole 9 Piston head supporting tubular part 10 Tubular portion guide hole for supporting piston head 11 Piston head 12 Opening / closing valve for intake 13 Piston head peripheral portion 14 A member made of a material that is a stretchable material and has a large number of communication holes 15 Intake provided on the back surface of the piston head Open / close valve support tool 16 Packing 17 Spiral part 18 Spring seat 19 Piston chamber 20 Liquid absorption pipe 21 Push button type ejection head guide upward projecting portion 22 Injection port

Claims (17)

[Claims] 1. A lid for a contents container, a push button type injection head, and a piston mechanism interposed between the lid and the injection head, and a piston chamber of the piston mechanism is integrated with or separate from the lid. A space portion provided on the body and formed by the sliding relationship between the cylinder portion and the piston portion is the piston chamber, and the piston chamber is provided through the inlet from the contents container provided in the cylinder portion. The flow path is made to be able to communicate with the injection port of the injection head, the flow path is normally closed by a check valve, and the check valve is opened to open the flow path when the injection head is operated. , The content in the container provided in the lid is brought into contact with the air sucked into the piston chamber from the outside to generate bubbles, and the bubbles are ejected to the outside from the injection port provided in the push button type injection head. A foaming pump. 2. A cylindrical portion for a piston mechanism is provided at a central portion of a lid for a contents container in a downward or inward direction, and a cylindrical projection portion having an open upper portion is provided at an upward or outward direction of a central portion of the lid, and the projection thereof. The foam pump according to claim 1, wherein the portion can be used as a guide for the lower peripheral surface portion of the push button type injection head. 3. An upward biasing spring for a push-button type injection head is disposed between the push-button type injection head and a spring seat with an air intake hole provided in the central portion of the contents container lid. An intake hole and a tubular portion guide hole for supporting the piston head are provided in the spring seat, a piston chamber is provided under the spring seat, and an intake opening / closing valve is provided in the piston portion of the piston chamber, and the piston chamber is sucked from the outside. The foam pump according to claim 1, wherein the generated air is brought into contact with the contents from the contents container to generate bubbles. 4. A piston chamber in a cylinder of a piston mechanism is filled with a stretchable fluid permeable material having an appropriate mesh, and air sucked from the outside by the fluid permeable material is brought into contact with a content liquid in a container to form bubbles. The foam pump according to claim 1, wherein the foam can be formed. 5. A ball check valve is located at the base end opening of the through hole of the cylinder portion for the piston mechanism, and the ball check valve is located above the ball check valve. A fluid-permeable material such as moltoprene is packed in the above, and the piston mechanism piston part having an intake opening / closing valve for bubble formation is located above it, and the peripheral part of the thin-film cylindrical structure is located at the head part of the piston part. 2. The foam pump according to claim 1, wherein the head portion of the piston portion is provided so that a lower end peripheral portion of the head portion can be vertically slidably operated on an inner peripheral surface portion of the piston mechanism cylinder portion. 6. A push button type injection head is attached to the upper end of a piston head supporting tubular portion having a piston head at the lower end and an opening at the upper end, and the injection head is provided. A space that communicates with the injection port of is made into a valve chamber, and a ball check valve is arranged in the valve chamber, and the opening at the upper end of the piston head supporting tubular portion is normally provided by the ball check valve. 2. The foam pump according to claim 1, which is closed so that the ball-shaped check valve can be opened when the push button type injection head is activated. 7. A piston head supporting member having a piston head capable of moving up and down, in which a member made of a material having a large number of communicating holes made of a stretchable material is arranged in a cylinder portion for a piston mechanism. A member made of a material having a large number of communicating holes in the piston chamber from the intake on-off valve and the peripheral portion of the piston head when the tubular portion is arranged and the piston head supporting tubular portion moves up and down. The air is sucked into the inside of the container, the air is brought into contact with the content liquid sucked up from the inside of the container, and bubbles are formed so that the bubbles can be jetted from the jet port of the jet head. Foam pump. 8. The foam pump according to claim 1, wherein a content liquid suction pipe is connected to a cylindrical downward projecting portion at a lower end portion of the piston mechanism cylinder portion. 9. A coil-shaped coil spring is arranged around a tubular portion for supporting a piston head, and when the jet head fixed to the upper end of the tubular portion is pressed, the coil spring can return the same. The foam pump according to claim 1, wherein 10. The foam pump according to claim 1, wherein an intake on-off valve is formed on the back side of the piston head, and the valve is formed near the central opening of the piston head supporting tubular portion. 11. A piston head forming a piston chamber is located under a spring seat having an intake hole and a tubular portion guide hole for supporting the piston head. The foam pump according to claim 1, wherein the valve piece is attached to the piston head by a supporting member. 12. The foam pump according to claim 1, wherein the bottom of the piston chamber has a conical shape, and the position of the through hole at the center thereof is at the base of the cylindrical downward projection for mounting the liquid suction tube. 13. The foam pump according to claim 1, wherein the liquid suction pipe can be detached from the root of the cylindrical downward projection for mounting the liquid suction pipe, and can be used upside down. 14. The foam pump according to claim 1, wherein an intake on-off valve made of a soft synthetic resin or a soft synthetic rubber is provided at the piston head forming the piston chamber. 15. The foam pump according to claim 1, wherein the intake on-off valve can be closed when the piston is pressed, and the intake on-off valve can be opened when the piston is pulled up. 16. A check valve mechanism provided in a flow path in a push-button type injection head, which can be opened when the injection head is pressed,
The foam pump according to claim 1, wherein the check valve mechanism can be closed when the pressure on the jet head is released. 17. A check valve mechanism provided at the bottom of a piston chamber can be closed when the injection head is pressed, and the check valve mechanism can be opened when the injection head is released. The foam pump according to claim 1.