JP6144089B2 - Carbon dioxide generator - Google Patents

Description

  The present invention relates to a portable and simple carbon dioxide generator.

Conventionally, carbon dioxide (carbon dioxide / CO ₂ ) has been used in various applications, for example, as a propellant for aerosol products, or for the production of carbonated water, beer servers, health (blood circulation) promotion, and plants It is used for nurturing.
In the carbon dioxide generator described in Patent Document 1 below, a device that is excellent in sustained release of carbon dioxide and that can sustain the state in which carbon dioxide can be generated is provided for a long period of time, with the aim of promoting blood circulation of the body It is what.

  The structure is such that a carbon dioxide generator having a carbon dioxide generator is enclosed in a bag made of a carbon dioxide-impermeable sheet. The carbon dioxide generating part is composed of a sheet impregnated with an aqueous bicarbonate solution, and the carbon dioxide generating body is composed of a container containing the carbon dioxide generating part, and the container has air permeability and moisture permeability. It is composed of a breathable sheet. As the bicarbonate aqueous solution, a sodium bicarbonate aqueous solution or a potassium bicarbonate aqueous solution is used.

The carbon dioxide generator described in the following Patent Document 2 is a carbon dioxide that can be used easily at home, has excellent thermal effects, and can improve symptoms such as fatigue, dullness, weight, swelling, and coldness of the lower limbs of the human body. It is an object to provide a gas generator.
The structure includes a footrest that can be placed with the sole in contact with the foot, an agent storage that can store a carbon dioxide generator and a steam generator, and a space that surrounds and covers the lower limbs or the instep of the foot. And a lower limb covering portion to be formed.
Then, when the footrest is disposed below the lower limb cover and carbon dioxide gas and steam are generated in the agent storage portion, the carbon dioxide and steam enter the lower limb cover from below the footrest. It is to be supplied.

JP 2010-222259 A JP 2009-285249 A

In the above conventional invention, it is specified for the promotion of health, such as the promotion of blood circulation of the body, but in the present invention, its use is free and it can be used in various situations where carbon dioxide is required. The first task is to provide something that has the characteristics.
Another object of the present invention is to provide a portable and simple configuration as a disposable one.
Of course, the manufacture is also simple, and the reduction of manufacturing cost and the ease of assembly are also problems.

  In order to solve the above-mentioned problem, a first one of the present invention includes a solution storage chamber for storing an organic acid or an inorganic acid of a citric acid aqueous solution or an aqueous solution thereof in a main body having a cylindrical shape, and a baking soda solution. Provided with a solid phase drug storage chamber for storing a solid phase drug for storing hydrogen carbonate or carbonate, and a sliding body that divides both storage chambers and slides in the longitudinal direction along the inner wall surface of the main body, A rod-shaped valve body is provided in the longitudinal direction in the substantially central portion of the sliding body, and an internal passage is formed in the shaft core portion of the rod-shaped valve body. The solution storage chamber side of the internal passage and the solid-phase drug storage chamber Opening portions are formed at appropriate positions on both end sides of the side, and the sliding body is composed of two sliding components, and a spring member of a coil spring is interposed between the two sliding components. Both sliding components are always biased in opposite directions, so that the solution The opening of the chamber-side rod-shaped valve body is sealed, and the end surface of the solution storage chamber of the main body is provided with a pressing member that can press the solution in the solution storage chamber by removing the stopper member. A discharge port is provided in the end surface of the other solid-phase drug storage chamber of the unit, a passage leading to the discharge port is formed on the front side of the discharge port, and the solid phase of the rod-shaped valve body is formed at the inlet of the channel. When the distal end portion on the side of the medicine storage chamber is fitted or detached, the distal end portion becomes an on-off valve. Thereby, by removing the stopper member, the pressing member moves to the sliding body side, thereby The gap between the sliding components is reduced against the biasing force of the elastic member between the sliding components, so that the opening on the solution storage chamber side of the rod-shaped valve body opens and the solution in the solution storage chamber is in a rod shape. It passes through the internal passage of the valve body, and the solid phase drug storage chamber side Carbon dioxide gas is generated by flowing into the solid phase drug storage chamber from the opening, and when the generated carbon dioxide gas reaches a predetermined pressure, the on-off valve is opened and carbon dioxide gas is released from the discharge port to the outside. This is a carbon dioxide generator.

  A second aspect of the present invention is the pressure according to the first aspect, wherein a filtering member is disposed inside the passage on the near side of the discharge port, and the discharge pressure of the carbon dioxide gas is reduced before the discharge port. It is a carbon dioxide generator characterized by further providing a regulating valve.

  According to a third aspect of the present invention, in the first or second aspect of the invention, a central portion of the end surface of the solution storage chamber of the main body bulges outward to form a bulging portion, and the pressing member is It is arranged on the end surface of the solution storage chamber of the main body, and two extension parts are provided substantially parallel to the outside of the bulging part through the end face of the main body part from the pressing member. Each through hole is provided, the stopper member is inserted in the diameter direction of the end face of the bulging portion, a spring member of a coil spring is disposed inside the bulging portion, and the stopper member is attached to both extension portions. The carbon dioxide generator is characterized in that by pulling out from the through hole, the pressing member is moved to the sliding body side by receiving the extending action of the elastic member, and the solution in the solution storage chamber can be pressed.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the rod-shaped valve body provided at a substantially central portion of the sliding body is formed to be movable in the longitudinal direction with respect to the sliding body. When the pressure of the carbon dioxide gas in the solid phase drug storage chamber becomes excessive, the rod-shaped valve body moves to the solution storage chamber side, and the opening of the rod-shaped valve body on the solid phase drug storage chamber side slides into the slide. It is a carbon dioxide generator characterized by being blocked by a moving body.

  According to a fifth aspect of the present invention, in any one of the above inventions, in order to prevent the carbon dioxide pressure in the solid phase drug storage chamber of the main body from becoming excessive, The carbon dioxide generator is further provided with a safety valve that opens at an appropriate position above a predetermined pressure.

Hereinafter, for convenience of explanation, the carbon dioxide generator according to the present invention will be described in a state where the solution storage chamber of the main body is disposed below and the solid phase drug storage chamber is disposed above.
In the first aspect of the present invention, the pressing member presses the solution in the solution storage chamber of the main body portion by removing the stopper member of the pressing member provided on the lower end surface portion of the main body portion, and thereby is positioned above the pressing member. The lower sliding structure of the sliding body is pressed, the elastic member between the upper and lower sliding structures contracts, and the lower sliding structure moves slightly upward.
When the downward sliding structure moves upward, the lower opening of the rod-shaped valve body located at the center thereof communicates with the solution storage chamber, and the solution enters from this opening and passes through the internal passage, thereby forming a rod-like shape. It will flow into the solid phase drug storage chamber from the opening above the valve element.
As a result, an organic acid or inorganic acid such as an aqueous citric acid solution stored in the solid phase drug storage chamber or an aqueous solution thereof and a bicarbonate or carbonate such as sodium bicarbonate stored in the solution storage chamber cause a chemical reaction. Carbon dioxide is generated.

  In this way, when the solid phase drug storage chamber is filled with carbon dioxide gas and reaches a predetermined pressure, the sliding body in the main body portion moves downward, whereby the upper end portion of the rod-shaped valve body provided at the substantially central portion thereof is moved. The opening / closing valve, which is the upper end of the rod-shaped valve body, opens from the inlet portion of the passage leading to the discharge port, and carbon dioxide gas is discharged from the discharge port.

That is, simply speaking, omitting the above process, carbon dioxide gas is easily generated from the discharge port by removing the stopper member.
Thus, for example, if carbonated water is produced, the carbonated water can be produced simply by removing the stopper member of the carbon dioxide generator according to the present invention and putting it into water as it is.
Alternatively, as a propellant for aerosol products, it can also be used as a replacement cylinder when the propellant runs short or missing.

In the present invention, the upper end portion of the rod-shaped valve body has a function of an on-off valve that fits or separates from the passage on the near side of the discharge port, and adopts a configuration that fits with the inlet portion of this passage. Therefore, the position of the sliding body provided in the main body can also be determined.
That is, the volumes of the upper solid phase drug storage chamber and the lower solution storage chamber inside the main body can be determined as predetermined.
By setting the volumes of these storage chambers, the amount of carbon dioxide gas generated by the amount of medicine stored in these storage chambers can be set in advance.

  Furthermore, in the present invention, for example, a citric acid aqueous solution in the lower solution storage chamber reacts with sodium bicarbonate in the upper solid phase drug storage chamber to generate carbon dioxide gas. After the reaction, sodium citrate and water are added. It occurs at the same time. However, these residues are stored inside the upper solid-phase drug storage chamber where the internal volume gradually increases, and are not discharged to the outside. After use, there is no problem with the carbon dioxide generator. It will be discarded soon.

In the second aspect of the present invention, a filtration member is disposed in the passage on the near side of the discharge port, and a pressure adjusting valve for reducing the discharge pressure of the carbon dioxide gas is further provided in front of the discharge port. It is characterized by this.
The reason why the filtering member is provided in the passage is to prevent the medicine or the like from being clogged in the discharge port.
The pressure adjusting valve is provided so that the discharge pressure of the carbon dioxide gas discharged from the discharge port can be further reduced and adjusted.

In the 3rd thing of this invention, the structure of the press member and stopper member which were provided in the lower end surface part of the main-body part is actualized more.
That is, the central portion of the lower end surface of the main body bulges downward and outward to form a bulging portion, and the pressing member is disposed on the lower end surface of the main body, and passes through the lower end surface of the main body from the pressing member. An extension portion of the book is provided substantially parallel to the outside of the bulging portion, a through hole is provided at each of the distal end portions of both the extending portions, the stopper member is inserted, and a coil spring or the like is provided inside the bulging portion. The elastic member is disposed, and the stopper member is pulled out from the through-holes of both extension parts, so that the elastic member is subjected to the extending action of the elastic member, so that the pressing member moves to the upper sliding body side. The solution can be pressed.

In the fourth aspect of the present invention, when the internal pressure of the solid phase drug storage chamber above the main body is excessive, the rod-shaped valve provided at the substantially central portion of the sliding body is below the sliding body. Then, the opening located above the rod-shaped valve body is configured to be sealed by the sliding body.
As a result, the solution in the solution storage chamber is stopped from flowing into the upper solid phase drug storage chamber from the upper opening of the rod-shaped valve body, the chemical reaction of both drugs is suppressed, The increase in pressure is suppressed.

  In the fifth aspect of the present invention, as in the fourth aspect of the present invention, means for preventing an excessive increase in pressure in the solid phase drug storage chamber is added, and the solid phase drug storage chamber of the main body portion is added. A safety valve, which is an open valve that opens at a predetermined pressure or higher, is further provided at an appropriate position on the wall surface.

It is the center longitudinal cross-sectional view and bottom view which show 1st Embodiment of the carbon dioxide generator of this invention. The center longitudinal cross-sectional view of the carbon dioxide generator which concerns on the said 1st Embodiment is shown, The (A) shows the state before the use start which filled the chemical | medical agent, The (B) shows the operation start state which removed the stopper member. Show. The center longitudinal cross-sectional view of the carbon dioxide generator which concerns on the said 1st Embodiment is shown, The (C) has shown the state which has discharged | emitted carbon dioxide, The (D) has shown the state of carbon dioxide release completion | finish . It is a center longitudinal cross-sectional view which illustrates 2nd Embodiment of the carbon dioxide generator of this invention. The center longitudinal cross-sectional view of the said 2nd Embodiment is shown, The (A) shows the operation | movement start state which removed the stopper member, The (B) has shown the state which discharge | releases carbon dioxide. The center longitudinal cross-sectional view of the said 2nd Embodiment is shown, Although the (C) has discharge | released the carbon dioxide gas, it shows the state by which the opening part of the upper part of a rod-shaped valve body was closed, The (D) is a carbon dioxide gas The state of release completion is shown. It is a center longitudinal cross-sectional view of the state before the operation | movement which shows 3rd Embodiment of the carbon dioxide generator of this invention.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a central longitudinal sectional view and a bottom view showing a first embodiment of a carbon dioxide generator of the present invention. The hatching indicating the cross section is omitted in order to avoid complication of the drawing.
The carbon dioxide generator according to the present invention has a cylindrical body as a whole, a discharge port 12 provided at the upper end surface, and a bulging portion 13 provided at the lower end surface.

  A sliding body is provided inside the main body 11, and this sliding part is formed by an upper sliding structure 14 and a lower sliding structure 15 having a vertically symmetrical shape, and both sliding structures. Between 14 and 15, a coil spring 16 is provided as an elastic member.

  A rod-shaped valve body 17 is provided substantially vertically at the center of both sliding components 14, 15, and an internal passage 18 is formed at the axial center of the rod-shaped valve body 17. An opening 19 is provided at an upper portion thereof, and an opening 20 is provided at an upper portion thereof.

By the sliding body, the interior of the main body 11 is divided into a solution storage chamber 21 positioned below and a solid phase drug storage chamber 22 positioned above.
The sliding body and the rod-shaped valve body 17 can slide up and down along the inner wall surface inside the main body 11.
The lower opening 19 of the rod-shaped valve body 17 disposed at the substantially central portion of the sliding body is sealed by the lower sliding structure 15 in the state of FIG. On the other hand, the opening 20 above the rod-shaped valve body 17 is located above the upper sliding component 14 and is opened in the solid phase drug storage chamber 22.

A passage 29 leading to the discharge port 12 is formed on the front side of the discharge port 12, and an upper end portion 17v of the rod-shaped valve body 17 is fitted to the inlet portion 29e of the passage 29, so that the inlet portion 29e is fitted. Can be sealed.
That is, the distal end portion 17v of the rod-shaped valve body 17 serves as an opening / closing valve for the passage 29.
Further, a filtering member 32 is disposed at an appropriate position of the passage 29 so that the medicine or the like in the solid phase medicine storage chamber 22 does not flow out to the discharge port 12 side.

In the embodiment of the present invention, a pressure adjusting valve 30 for further reducing the internal pressure of the carbon dioxide gas generated before the discharge port 12 is provided.
That is, when the pressure in the solid-phase drug storage chamber 22 reaches a predetermined pressure, the sliding body and the rod-shaped valve body 17 move downward, and the tip portion 17v above the rod-shaped valve body 17 opens the inlet portion 29e of the passage 29. However, the pressure adjusting valve 30 is provided to further reduce the pressure in the solid phase drug storage chamber 22 to a predetermined pressure.

In the upper solid-phase drug storage chamber 22, a bicarbonate or carbonate drug such as baking soda is stored. These drugs have a solid phase form such as a granular material.
An organic acid or inorganic acid such as an aqueous citric acid solution or an aqueous solution thereof is stored in the lower solution storage chamber 21.
Therefore, carbon dioxide gas is generated by flowing the solution in the lower solution storage chamber 21 into the upper solid phase drug storage chamber 22.

A pressing member 24 is provided inside the lower end portion of the main body portion 11, and extensions 25 and 25 extending downward from two symmetrical positions of the pressing member 24 penetrate the lower end surface of the main body portion 11.
The extension portions 25, 25 are located outside the bulging portion 13 provided on the lower end surface of the main body portion 11.
Insertion holes are provided in the lower end portions of the extension portions 25, 25, and the stopper member 26 is inserted through these insertion holes in the diameter direction of the end surface of the bulging portion 13.

A coil spring 27 serving as an elastic member is disposed between the lower end surface of the bulging portion 13 and the pressing member 24, and the pressing member 24 can be constantly urged upward. Thus, the action of the urging force is stopped.
By pulling out the stopper member 26 from the insertion hole, the urging force of the coil spring 27 acts on the pressing member 24 and the pressing member 24 moves upward.

When the pressing member 24 moves upward, the solution in the solution storage chamber 21 below the main body 11 is pressed upward, and the downward sliding component 15 is pressed upward.
When the lower sliding structure 15 is pressed upward and pushed up, the coil spring 16 interposed between the upper sliding structure 14 contracts and the lower sliding structure 15 moves upward.

  As a result, the solution in the lower solution storage chamber 21 flows into the internal passage 18 of the rod-shaped valve body 17 from the opening 19 below the rod-shaped valve body 17, and then the opening above the internal passage 18 of the rod-shaped valve body 17. Carbon dioxide gas is generated by flowing into the upper solid-phase drug storage chamber 22 from the unit 20 and causing a chemical reaction.

Carbon dioxide is stored in the solid phase drug storage chamber 22 and the internal pressure increases.
When the internal pressure in the solid-phase drug storage chamber 22 rises, the sliding bodies 14 and 15 and the rod-shaped valve body 17 move downward.
When the rod-shaped valve body 17 moves downward, the tip end portion 17v is detached from the inlet portion 29e of the passage 29, and the sealing of both is released.

  Thereafter, when the internal pressure in the solid phase drug storage chamber 22 becomes equal to or higher than a predetermined pressure, the pressure regulating valve 30 provided inside the discharge port 12 is actuated to open the valve, and carbon dioxide gas at a predetermined pressure is generated. It is discharged from the discharge port 12 to the outside world.

The carbon dioxide generator according to the first embodiment has an outer diameter of about 32 mm and a total length in the longitudinal direction of about 111 mm. In the state before use in which the medicine is filled (before the stopper member is removed), the solution Each of the storage chamber and the solid phase drug storage chamber has a volume of about 12 ml.
In this embodiment, 12 ml of 70% aqueous citric acid solution (C ₆ H ₈ O ₇ ) is stored in the lower solution storage chamber 21, and sodium bicarbonate (NaHCO 3) is stored in the upper solid phase drug storage chamber 22. ₃ ) 1 mol is stored, and the generated carbon dioxide gas is about 67.2 liters.

Next, the operation of the carbon dioxide generator according to the first embodiment will be described again with reference to FIGS. 2 and 3.
FIG. 2: shows the center longitudinal cross-sectional view of the carbon dioxide generator based on the said 1st Embodiment, (A) shows the state before the use which filled with the chemical | medical agent, (B) removed the stopper member The operation start state is shown.

  (A) In the figure, the state before the operation is shown, which is the same state as in FIG. 1 above, and the two sliding components 14 and 15 and the rod-shaped valve body 17 located at the center thereof are at the top. The sliding structure 14, 15 is in a state where the distance between the sliding members 14, 15 is expanded to the maximum by the urging force of the coil spring 16, and the tip 17v above the rod-shaped valve body 17 is downward from the discharge port 12. The passage 29 is in a state of being sealed by being fitted to the inlet 29e of the passage 29 extending.

  On the other hand, the pressing member 24 disposed on the lower end surface of the main body portion 11 is also located at the lowermost end, and the stopper member 26 that passes through the lower end surface of the main body portion 11 from the pressing member 24 and the distal ends of the extension portions 25 and 25. The coil spring 27 disposed in the bulging portion 13 provided at the lower end portion of the main body portion 11 is maintained in a contracted state.

The lower solution storage chamber 21 is filled with an aqueous citric acid solution, and sodium bicarbonate is charged into the upper solid phase drug storage chamber 22.
In this state, the lower opening 19 of the internal passage 18 of the rod-shaped valve body 17 is closed by the lower sliding structure 15. On the other hand, the opening 20 above the internal passage 18 of the rod-shaped valve element 17 remains open to the solid phase drug storage chamber 22.

FIG. 5B shows a state where the stopper member 26 at the lower end of the main body 11 is removed from the state before the operation.
That is, when the stopper member 26 is extracted from the extension portions 25, 25 of the pressing member 24, the coil spring 27 is extended, and the pressing member 24 is pushed upward.

When the pressing member 24 is pushed upward, the citric acid aqueous solution filled in the solution storage chamber 21 is pushed up, whereby the lower sliding structure 15 moves upward, and the coil spring 16 interposed therebetween contracts. The lower sliding structure 15 comes into contact with the upper sliding structure 14.
When the lower sliding component 15 moves upward, the lower opening 19 of the internal passage 18 of the rod-shaped valve body 17 is opened to the solution storage chamber 21, and the citric acid aqueous solution in the solution storage chamber 21 is transferred to the rod-shaped valve. It flows into the internal passage 18 of the body 17 and then flows into the upper solid-phase drug storage chamber 22 from the opening 20 above the internal passage 18.

As a result, carbon dioxide gas is generated in the upper solid-phase drug storage chamber 22.
In this state, in the upper solid-phase drug storage chamber 22, the upper end portion 17 v of the rod-shaped valve body 17 is fitted with the inlet portion 29 e of the passage 29 communicating with the discharge port 12 and is in a closed state. .
That is, the generated carbon dioxide gas is stored inside the solid phase drug storage chamber 22, and the internal pressure gradually rises.

FIG. 3 shows a central longitudinal sectional view of the carbon dioxide generator according to the first embodiment, in which (C) shows a state in which carbon dioxide is released, and (D) shows a state in which carbon dioxide release is completed. Is shown.
When the solid phase drug storage chamber 22 is further filled with carbon dioxide gas from the state of FIG. 2 (B) and the internal pressure rises, the two sliding constituent bodies 14 and 15 and the rod-shaped valve body 17 that can slide up and down are formed. Both shift downward and the state shown in FIG.

When the rod-shaped valve body 17 moves downward, the distal end portion 17v of the rod-shaped valve body 17 is detached from the inlet portion 29e of the communication through passage 29 to the discharge port 12.
As a result, the carbon dioxide gas in the solid phase drug storage chamber 22 fills the passage 29 and reaches the pressure regulating valve 30 installed in front of the discharge port 12.

The pressure regulating valve 30 opens the valve when reaching a predetermined pressure. In this embodiment, the pressure regulating valve 30 is set to 1.5 atm, and the internal pressure in the solid-phase drug storage chamber 22 is higher than this. Even if it becomes, it is comprised so that a carbon dioxide gas can be discharge | released outside at this predetermined pressure.
In this embodiment, the opening pressure of the tip 17v of the rod-shaped valve body 17 is set to about 3 atmospheres.

(D) As shown in the previous figure (C), carbon dioxide is released from the discharge port 12 at a predetermined pressure, the reaction between the citric acid aqueous solution and sodium bicarbonate is completed, and the release of carbon dioxide is completed. Is shown.
That is, in a state where the reaction is completed and the aqueous citric acid solution is exhausted, the upper and lower sliding components 14 and 15 and the rod-shaped valve body 17 are pushed down to the lowermost end inside the main body 11, and the lower end pressing member 24 The sliding structures 14 and 15 are in an overlapping state.

In this state, the release of carbon dioxide gas is completed.
In addition, since the filter as the filtering member 32 is provided inside the passage 29, the outflow of the medicine and the like from the inside of the solid phase medicine storage chamber 22 to the discharge port 12 side is prevented.
As this filter, a mesh filter or a fibrous filter member such as nylon or polyester can be used, and the material, form, etc. thereof can be freely selected and used.
Due to the presence of this filter, residues such as sodium citrate after the chemical reaction in the solid phase drug storage chamber are not discharged to the outside from the discharge port.

FIG. 4 is a central longitudinal cross-sectional view illustrating a second embodiment of the carbon dioxide generator of the present invention.
The second embodiment has basically the same configuration as that of the first embodiment, but only the relational structure between the rod-shaped valve body 17 and the upper sliding structure 14 is different.
That is, in the second embodiment, the rod-shaped valve body 17 is formed so as to be slidable up and down with respect to the upper sliding structure body 14.

Therefore, in the second embodiment, the upper sliding structure 14 and the lower sliding structure 15 are not vertically symmetrical.
In the first embodiment, the rod-shaped valve body 17 does not move relative to the upper sliding structure 14, but always moves together. Therefore, the opening 20 above the internal passage 18 of the rod-shaped valve body 17 was not closed.

The configuration will be described in detail. In the second embodiment, a step 14d is formed in the insertion hole 14h of the upward sliding structure 14 through which the rod-shaped valve body 17 is inserted, and a step is formed on the outer peripheral portion of the rod-shaped valve body 17. 17d is provided, and a coil spring 34 as an elastic member is disposed between the step portions 14d and 17d.
Thereby, the rod-shaped valve body 17 can move downward against the urging force of the intervening coil spring 34 with respect to the upper sliding structure 14.

  With this configuration, when the pressure in the upper solid-phase drug storage chamber 22 becomes excessive, the rod-shaped valve element 17 moves downward against the biasing force of the coil spring 34, and the upper part of the internal passage 18. The opening 20 is closed by the upper sliding structure 14.

This will be specifically described below with reference to FIGS.
FIG. 5: shows the center longitudinal cross-sectional view of the carbon dioxide generator based on the said 2nd Embodiment, The (A) shows the operation start state which removed the stopper member, The (B) discharge | releases carbon dioxide It shows the state.
The state shown in FIG. 4 shows the state before the start of the operation of the second embodiment. When the stopper member 26 is removed in this drawing, the state shown in FIG. 5A is obtained.

That is, when the stopper member 26 is removed from the extensions 25 and 25 of the pressing member 24, the coil spring 27 is extended and the pressing member 24 is pushed upward.
When the pressing member 24 is pushed upward, the citric acid aqueous solution filled in the solution storage chamber 21 is pushed up, whereby the lower sliding structure 15 moves upward, and the coil spring 16 interposed therebetween contracts. The lower sliding structure 15 comes into contact with the upper sliding structure 14.

When the lower sliding component 15 moves upward, the lower opening 19 of the internal passage 18 of the rod-shaped valve body 17 is opened to the solution storage chamber 21, and the citric acid aqueous solution in the solution storage chamber 21 is transferred to the rod-shaped valve. It flows into the internal passage 18 of the body 17 and then flows into the upper solid-phase drug storage chamber 22 from the opening 20 above the internal passage 18. As a result, carbon dioxide gas is generated in the upper solid-phase drug storage chamber 22.
This state is the same as the state shown in FIG.

In (B), the carbon dioxide gas generated in FIG. (A) fills the upper solid-phase drug storage chamber 22, and the internal pressure rises as appropriate. The moving structure 15 and the rod-shaped valve body 17 are moved downward, and the distal end portion 17v of the rod-shaped valve body 17 is detached from the inlet portion 29e of the passage 29 on the near side of the discharge port 12, and the solid-phase drug storage chamber 22 When the internal pressure rises to a predetermined internal pressure, the pressure regulating valve 30 disposed on the front side of the discharge port 12 is opened, and carbon dioxide gas is discharged from the discharge port 12 to the outside.
This state is the same as the state shown in FIG.

FIG. 6: shows the center longitudinal cross-sectional view of the carbon dioxide generator based on the said 2nd Embodiment, Although the (C) has discharge | released carbon dioxide, the upper opening part of a rod-shaped valve body is closed (D) shows the state of carbon dioxide release completed.
In the second embodiment, the state shown in FIG. 6C shows the characteristic portion.

That is, as described above, in the second embodiment, the rod-shaped valve body 17 is configured to be able to move downward with respect to the upper sliding structure 14.
Such a configuration is adopted because when the pressure inside the upper solid-phase drug storage chamber 22 rises and becomes excessive, it is between the upper sliding component 14 and the rod-shaped valve body 17. The coil spring 34 as an interposed elastic member is contracted so that the rod-shaped valve element 17 is immersed in the insertion hole of the upper sliding component 14, and the opening 20 above the internal passage 18 is the upper sliding member. It is because the opening part 20 is closed by immersing in the insertion hole of the moving structure 14, and the inflow of the citric acid aqueous solution supplied from the lower solution storage chamber 21 can be stopped.

In this embodiment, when the pressure in the upper solid-phase drug storage chamber 22 becomes 5 atm using the elastic force of the coil spring 34, the rod-shaped valve element 17 moves upward. It is comprised so that it may immerse in the inside of 14 insertion holes.
Then, carbon dioxide gas of about 1.5 atm is released to the outside by the action of the pressure regulating valve 30 on the front side of the discharge port 12.

FIG. 4D shows a state in which carbon dioxide gas is released from the discharge port 12 at a predetermined pressure, the reaction between the citric acid aqueous solution and sodium bicarbonate is completed, and the release of carbon dioxide gas is completed.
That is, in a state where the reaction is completed and the aqueous citric acid solution is exhausted, the upper and lower sliding components 14 and 15 and the rod-shaped valve body 17 are pushed down to the lowermost end inside the main body 11, and the lower end pressing member 24 The sliding structures 14 and 15 are overlapped.
In this state, the release of carbon dioxide gas is completed, and this state is the same as that in FIG.

FIG. 7 is a central longitudinal cross-sectional view of a state before operation showing a third embodiment of the present invention.
In the third embodiment, a safety valve is added to the first embodiment.
Excluding the safety valve, it is the same as the first embodiment.

This safety valve 40 is provided on the shoulder portion above the solid phase drug storage chamber 22 above the main body portion 11, and the valve body 42 is fixed against the biasing force of the coil spring 41 as the biasing member. As a result, the valve body 42 moves outward, the sealing is released, and the internal carbon dioxide gas is released.
Of course, during this time, the discharge of carbon dioxide from the discharge port 12 continues.

The safety valve may be added to the second embodiment, but in the second embodiment, the aqueous citric acid solution is supplied due to the relationship between the rod-shaped valve body 17 and the upper sliding structure 14. This safety valve need not be added because a structure is employed in which the internal pressure in the upper solid-phase drug storage chamber 22 is prevented from becoming excessive by stopping the operation.
Further, the structure becomes complicated and the cost is increased, and it is not necessary to add a safety valve to the second embodiment from this viewpoint.

Although three embodiments have been described above, various design changes can be made in the present invention as follows.
First, the use of the carbon dioxide generator according to the present invention is not particularly limited, and can be used in any scene where carbon dioxide is required.

In the case where carbonated water is used to be used when it is poured into water, when it is poured into any liquid, the carbon dioxide generator can be preliminarily added with a weight. This is because gas can be generated while being submerged in the liquid.
The size and the like of the main body can be changed as appropriate. The material of the main body may be made of metal, but in order to be disposable, a synthetic resin is suitable.

  The form of the stopper member can also be freely changed in design. In short, by removing the stopper member from the pressing member, the pressing member moves upward, that is, toward the sliding body, so that the solution in the solution storage chamber Any configuration can be adopted as long as the configuration can be pressed.

  In the first embodiment, the upper and lower sliding structures are symmetrical in the vertical direction. However, they may not be symmetrical, and are formed of two parts. As a result, the opening between the lower part of the rod-shaped valve element arranged at the center thereof may be opened into the solution storage chamber, and the shape of both sliding components is completely free. Can be designed.

Various shapes and forms such as the length and outer diameter of the rod-shaped valve element arranged in the longitudinal direction of the center of the sliding body can be freely designed.
In the first embodiment, the rod-shaped valve element determines the upper and lower movable ranges of the upper and lower sliding components. That is, in the first embodiment, the rod-shaped valve element and the upper valve element are separated by an intervening coil spring. The sliding structure does not move relative to each other.

  On the other hand, as in the second embodiment, the rod-shaped valve element is configured to be movable downward with respect to the upper sliding component, and the rod-shaped valve element is moved upward by moving downward with respect to the upper sliding component. The inflow of the solution into the solid phase drug storage chamber can be stopped.

  An elastic member interposed between both sliding components, an elastic member interposed between the rod-shaped valve body and the upper sliding component, and further disposed in a pressure regulating valve installed in front of the discharge port By appropriately setting the urging force of the elastic member, the pressure of the carbon dioxide gas to be released or the pressure for reducing the excess pressure can be set as appropriate.

Similarly, the limit pressure for releasing the internal pressure can be appropriately set by appropriately setting the biasing force of the elastic member disposed in the safety valve.
The filtering member is optional, but it is highly preferable to install it in a passage leading to the discharge port, and the material and the like can be freely selected.

  In the present invention, an organic acid or inorganic acid such as an aqueous citric acid solution or an aqueous solution thereof may be stored in the solution storage chamber, while a bicarbonate or carbonate such as sodium bicarbonate may be stored in the solid phase drug storage chamber. These can be reacted to generate carbon dioxide gas.

  As described above, the present invention provides a portable and simple carbon dioxide generator that can be used in any scene where carbon dioxide is required and can be made disposable. Was able to.

DESCRIPTION OF SYMBOLS 11 Main-body part 12 Ejection port 13 Bulging part 14 Sliding structure (above)
15 Sliding structure (downward)
16 coil spring 17 rod-shaped valve body 17v tip 18 internal passage 19 opening (downward)
20 Opening (upper)
DESCRIPTION OF SYMBOLS 21 Solution storage chamber 22 Solid-phase chemical | medical agent storage chamber 24 Press member 25 Extension part 26 Stopper member 27 Coil spring 29 Passage 29e Inlet part 30 Pressure adjustment valve 32 Filtration member 34 Coil spring 40 Safety valve

Claims (5)

A solution storage chamber (21) for storing an organic acid or an inorganic acid of a citric acid aqueous solution or an aqueous solution thereof in a cylindrical body (11), and a solid phase for storing a bicarbonate or carbonate of sodium bicarbonate A solid-phase drug storage chamber (22) for storing the drug is provided, and a sliding body is provided inside the storage chamber (21, 22) and sliding in the longitudinal direction along the inner wall surface of the main body (11). The rod-shaped valve body (17) is provided in the longitudinal direction at the substantially central portion of the sliding body,
An internal passage (18) is formed in the shaft core portion of the rod-shaped valve element (17), and both end sides of the internal passage (18) on the solution storage chamber (21) side and the solid phase drug storage chamber (22) side are formed. Forming an opening (19, 20) at each appropriate position of
The sliding body is composed of two sliding components (14, 15), and the elastic members of the coil spring (16) are interposed between the two sliding components (14, 15) so that they always conflict with each other. Both sliding components (14, 15) are energized to form a state in which the opening (19) of the rod-shaped valve body (17) on the solution storage chamber (21) side is sealed,
A pressing member (24) capable of pressing the solution in the solution storage chamber (21) by removing the stopper member (26) is provided on the end surface portion of the solution storage chamber (21) of the main body (11),
On the end surface of the other solid phase drug storage chamber (22) of the main body (11), a discharge port (12) is provided,
A passage (29) communicating with the discharge port (12) is formed on the front side of the discharge port (12), and a solid phase drug of the rod-shaped valve body (17) is formed at an inlet portion (29e) of the passage (29). When the tip (17v) on the storage chamber (22) side is fitted or detached, the tip (17v) becomes an on-off valve,
Thereby, by removing the stopper member (26), the pressing member (24) is moved to the sliding body side, whereby the urging force of the elastic member between the two sliding structural bodies (14, 15). Against this, the opening (19) on the solution storage chamber (21) side of the rod-shaped valve body (17) is opened by the interval between the two sliding components (14, 15) being narrowed, and the solution storage chamber (21) The solution inside passes through the internal passage (18) of the rod-shaped valve body (17) and flows into the solid phase drug storage chamber (22) from the opening (20) on the solid phase drug storage chamber (22) side. Carbon dioxide is generated,
When the generated carbon dioxide gas reaches a predetermined pressure, the carbon dioxide generator is configured such that the open / close valve (17v) is opened and carbon dioxide gas is released from the discharge port (12) to the outside.   A filtration member (32) is disposed inside the passage (29) on the near side of the discharge port (12), and a pressure regulating valve (30 for reducing the discharge pressure of carbon dioxide gas before the discharge port (12). The carbon dioxide generator according to claim 1, further comprising: A central portion of the end surface of the solution storage chamber (21) of the main body portion (11) bulges outward to form a bulging portion (13),
The pressing member (24) is disposed on the end surface of the solution storage chamber (21) of the main body (11), and passes through the end surface of the main body (11) from the pressing member (24). 25) is provided substantially parallel to the outside of the bulging portion (13),
A through hole is provided at each of the distal end portions of both the extended portions (25, 25), and the stopper member (26) is inserted in the diameter direction of the end surface of the bulged portion (13),
An elastic member of a coil spring (27) is disposed inside the bulging portion (13), and the elastic member is removed by removing the stopper member (26) from the through holes of both extension portions (25, 25). 3. The carbon dioxide generator according to claim 1, wherein the pressing member (24) is moved to the side of the sliding body in response to the elongating action, and the solution in the solution storage chamber (21) can be pressed.   A rod-shaped valve body (17) provided at substantially the center of the sliding body is formed so as to be movable in the longitudinal direction with respect to the sliding body, and the pressure of carbon dioxide gas in the solid phase drug storage chamber (22) is excessive. When this happens, the rod-shaped valve body (17) moves to the solution storage chamber (21) side, and the opening (20) on the solid-phase drug storage chamber (22) side of the rod-shaped valve body (17) is slid. The carbon dioxide generator according to any one of claims 1 to 3, wherein the carbon dioxide generator is sealed by a moving body.   In order to prevent the carbon dioxide gas pressure in the solid phase drug storage chamber (22) of the main body (11) from becoming excessive, it is appropriately positioned on the wall surface of the solid drug storage (22) chamber of the main body (11). The carbon dioxide generator according to any one of claims 1 to 4, further comprising a safety valve (40) that opens at a predetermined pressure or more.