JPH0581099U - Exhaust valve device - Google Patents

Abstract

(57) [Abstract] [Purpose] By tilting a can-shaped container,
An object of the present invention is to provide a discharge valve device capable of smoothly and continuously discharging a liquid content from one inlet. [Structure] A fluid passage 2a and an air passage 2d of a connecting member 2 which is detachably connected to a spout 1 of a predetermined container in a close contact state.
Fluid valve 4 and air valve 3b located in the two passages of the air passage 2d and the air inlet conduit 1 connected to the inside of the container of the air passage 2d.
The outside air is guided into the container via the fluid passage 2a.
Also, the fluid substance in the container is discharged to the outside of the container through the mouthpiece 16 of a predetermined shape connected to the upper opening 2c of the fluid passage 2a.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge valve device, and more particularly, to a discharge valve device that can be attached to a spout of a predetermined can-shaped container to smoothly discharge the contents in the container.

[0002]

[Prior Art]

 Conventionally, in order to discharge the liquid content from the can-shaped container, the pouring port of the container is opened, and the container is tilted to directly discharge the fluid content from the pouring port. At this time, the volume of the fluid discharged from the container to the outside of the container and the volume of the air flowing into the container are equal, and normally, the discharge of the fluid and the inflow of the air are both performed using the same inlet. I was being beaten.

[0003]

[Problems to be solved by the device]

 However, in the conventional method of inclining the container and discharging the liquid etc. from the spout, the liquid discharged from the spout cannot be continuously and smoothly discharged unless the air smoothly flows into the container. It was a so-called discontinuous discharge in a pulsating state. In particular, this phenomenon was remarkable when the content of the liquid or the like filled in the container was large. Therefore, when the oil in the can-shaped container is directly supplied to the oil filling port of a machine or the like, there is a risk that the oil may leak to the outside, and it has been difficult to directly supply the oil. Therefore, the work efficiency was very poor because the problem had to be dealt with by, for example, transferring the oil to another container and then refueling. Further, when kerosene or the like is fed to the oil stove, it is necessary to carefully perform the refueling work because the odor of kerosene spreads in the room if the kerosene leaks to the outside.

In addition, a small hole for inflowing air was sometimes formed on the side opposite to the pouring port of the can. However, even in this case, the pulsation phenomenon at the time of discharging cannot be eliminated, and smooth discharging is achieved. I couldn't. However, if there is residual oil in the can, there is a risk that dust and the like will enter the container through the small holes, and the oxidation of oil, etc. will also be promoted, which is uneconomical.

Therefore, the present invention aims to provide a discharge valve device capable of smoothly and continuously discharging a liquid content from one inlet of the container by inclining the can-shaped container. Is.

[0006]

[Means for Solving the Problems]

 The discharge valve device according to the present invention is attached to a pouring port of a predetermined container, and has two passages, a fluid passage for discharging a fluid in the container to the outside of the container and an air passage for guiding outside air into the container, separately. The connecting member has a rotating shaft that penetrates through the fluid passage and the air passage of the connecting member and is rotated by an opening / closing lever, and is located in the fluid passage of the connecting member, and the fluid passage is formed according to the rotation of the rotating shaft. A fluid valve that opens and closes; an air valve that is located in the air passage of the connecting member and that opens and closes the air passage in response to rotation of the rotating shaft; a lower opening that communicates with the fluid passage of the connecting member and the air passage. A close connection means for removably connecting the part to the inlet of the container in a close contact state, and an air inflow conduit connected to the inside of the container of the air passage of the connection member for guiding outside air into the container through the fluid passage, Of the connection member Is connected to the upper opening of the body passage is intended to and a die of predetermined shape for discharging the fluid substance to the outside of the container through the fluid passage.

[0007]

[Action]

 In the discharge valve device of the present invention, the fluid valve and the air valve located in the two passages of the fluid passage and the air passage of the connecting member removably connected in close contact with the inlet of the predetermined container are connected to the rotary shaft. Each of them is opened and closed by rotation to guide the outside air into the container through the air passage and the air inflow conduit connected to the inside of the container of the air passage, and is connected to the fluid passage and the upper opening of the fluid passage. Since the fluid in the container is discharged to the outside of the container through the shaped mouthpiece, the fluid in the container can be discharged from the inlet according to the opening / closing of the fluid valve, and at the same time, depending on the amount of liquid discharged. Since the outside air also flows into the container, pulsation does not occur and smooth and continuous discharge is possible.

[0008]

Embodiments Embodiments of the present invention will be described below. <First Embodiment> FIG. 1 is a sectional view showing a discharge valve device according to a first embodiment of the present invention, and FIG. 2 is a sectional view showing a use state of the discharge valve device according to a first embodiment of the present invention. 3 is a front view showing an opening / closing lever of the discharge valve device of FIG. 1, and FIG. 4 is a cross-sectional view showing an AA cross section of the discharge valve device of FIG.

In the figure, reference numeral 1 is a spout of a container of a predetermined standard such as a can, and a connecting member 2 can be removably attached to the spout 1. The connection member 2 has two separate passages, a fluid passage 2a for discharging the fluid in the container to the outside of the container and an air passage 2d for guiding the outside air into the container, and a spout is provided at the bottom of the fluid passage 2a. 1 is formed with a lower opening 2b and an upper portion is formed with an upper opening 2c. A rotary shaft 3 is provided so as to penetrate through the fluid passage 2a and the air passage 2d of the connection member 2, and the valve shaft portion 3a in the fluid passage 2a and the air valve 3b in the air passage 2d are integrally connected. ing. In this embodiment, the air valve 3b is integrally formed by cutting out a part of the rotary shaft 3. A fluid valve 4 is mounted on the valve shaft portion 3 a of the rotating shaft 3 and is fixed by a fixing pin 5. The periphery of the fluid valve 4 is coated with an oil resistant rubber, and it is taken into consideration that the chemical contents do not change even if the contents of the container touch the fluid valve 4. An open / close lever 6 is fixed to the end of the rotary shaft 3 by a set screw 7, and a ball 8 is interposed at the joint between the open / close lever 6 and the connecting member 2 to reduce frictional force during rotation. The ball 8 is biased by a spring 9 in the direction of the connecting member 2. Further, the open / close lever 6 is positioned by the ball 8 to be fully opened or fully closed. The spring 9 is assembled in the opening / closing lever 6 by a plug 10 in a sealed state. A retaining ring 11 is attached to the end of the rotating shaft 3 on the side opposite to the opening / closing lever 6 to prevent the retainer from coming off. Therefore, when the opening / closing lever 6 is moved, the rotary shaft 3 also rotates integrally, and this rotation causes the fluid valve 4 to open / close the fluid passage 2a and the air valve 3b to open / close the air passage 2d. A plug 12 is detachably mounted in an opening in the middle of the air passage 2d. The lower opening 2b of the connecting member 2 is provided with a spring-like clasp 13 having a predetermined elasticity, and the clasp 13 allows the lower opening 2b of the connecting member 2 to be attached to and detached from the spout 1. The structure is possible. A rubber-like packing 14 is provided in a close contact with the gap between the lower opening 2b of the connecting member 2 and the spout 1, and the gap is closed to prevent leakage of liquid such as oil. An air inflow conduit 15 is connected to the inside of the container of the air passage 2d of the connecting member 2, and outside air is guided into the container through the air inflow conduit 15 and the air passage 2d. A base 16 having a discharge port 16a with a thin tip is connected to the upper opening 2c of the fluid passage 2a of the connecting member 2, and the joint between the base 16 and the connecting member 2 is sealed by an O-ring 17. Has been done. The base 16 is fixed to the connecting member 2 by a set screw 18.

In the discharge valve device configured as described above, the connection member 2 is provided with an air passage 2d for inflowing outside air in addition to a fluid passage 2a for discharging a liquid or the like, and penetrates through these two passages. A fluid valve 4 and an air valve 3b are arranged on the rotating shaft 3. When the open / close lever 6 is rotated in the opening direction, the fluid valve 4 is opened and the fluid passage 2a is opened, and the air valve 3b of the rotating shaft 3 is also opened at the same angle and the air passage 2d is opened. On the contrary, by rotating the opening / closing lever 6 in the closing direction, the fluid valve 4 and the air valve 3b are closed, and the fluid passage 2a and the air valve 3b are closed.

Next, a method of using this discharge valve device will be described. In order to discharge the liquid filled in the can using the discharge valve device, it is necessary to first open the inlet 1 of the container such as the can and attach the outlet valve device to the inlet 1. .. This discharge valve device can be easily installed by fitting the lower opening 2b of the connection member 2 into the injection port 1, and the connection member 2 and the injection port 1 can be connected in close contact with each other by the stopper 13 and the packing 14. To do. At this time, it is necessary to insert the air inflow conduit 15 into a container such as a can at the same time. The air inflow conduit 15 has a bent shape on the way, and its end is located in the direction opposite to the spout 1 of a container such as a can. Thus, after mounting the discharge valve device on the inlet 1, the opening / closing lever 6 is turned in the opening direction to open the fluid valve 4 and the air valve 3b, and the fluid passage 2a and the air passage 2d are opened to tilt the can. As a result, the liquid, which is the content in the can, can be discharged. In particular, according to this discharge valve device, the inflow of air into the can can be made smooth through the air inflow conduit 15, and the fluid can be continuously discharged in accordance with the opening degree of the fluid valve 4. Pulsation does not occur and smooth continuous discharge is possible. Therefore, the oil can be directly supplied to the oil supply port of a machine or the like, and the work efficiency is significantly improved.

Further, in this embodiment, since the mouthpiece 16 having the discharge port 16a with a finely curved tip is connected to the upper opening 2c of the fluid passage 2a of the connecting member 2, liquid or the like flows smoothly and drains water. It is also good for draining oil, etc., and liquids such as oil will not drop down and adhere to containers such as cans after they have been discharged through the base 16. Moreover, since the connecting member 2 and the spout 1 are connected in close contact with each other, liquid or the like does not leak from the gap between the discharge valve device and the spout 1.

Further, this discharge valve device has different size and shape of the spout 1 even if different types of cans such as a square 4 liter can, a square 18 liter can, or a round 20 liter can are used. Since it can be attached if it has the same standard, it can be used for cans of different types and has a wide range of applications. In this case, it is necessary to adjust the length of the air inflow conduit 15 according to the type of can as shown in FIG.

Therefore, by using this discharge valve device, for example, even when the engine oil of an automobile is changed, it is possible to directly supply the engine from the square 4-liter can. Also, when kerosene is supplied to an oil stove, the oil can be directly supplied from an 18-liter square can. Moreover, after refueling, by simply turning the opening / closing lever 6 in the closing direction again, the fluid valve 4 and the air valve 3b are closed, and the fluid passage 2a and the air passage 2d are closed, so that the smell of kerosene or the like leaks. Nor. Also, with regard to the residual oil in the can, there is no risk of dust and the like entering the can, and the oxidation is slow, so the residual oil can be used effectively and it is economical.

As described above, the discharge valve device of this embodiment is attached to the inlet 1 of a predetermined container such as a square 4 liter can, a square 18 liter can, or a round 20 liter can, and the fluid material in the container is And a connection member 2 having two passages, a fluid passage 2a for discharging the air to the outside of the container and an air passage 2d for introducing the outside air into the container, and a fluid passage 2a and an air passage 2d of the connection member 2, and an opening / closing lever. A rotary shaft 3 which rotates by 6; a fluid valve 4 which is located in the fluid passage 2a of the connecting member 2 and which opens and closes the fluid passage 2a by the rotation of the rotating shaft 3; and an air passage 2d of the connecting member 2. An air valve 3b, which is located inside and opens and closes the air passage 2d by the rotation of the rotating shaft 3, and a lower opening 2b which communicates with the fluid passage 2a of the connecting member 2 and the air passage 2d. Close to 1 And a close connection means composed of a clasp 13 and a packing 14 which are detachably connected to each other, and are connected to the inside of the container of the air passage 2d of the connecting member 2 and guide the outside air into the container through the fluid passage 2a. An air inflow conduit 15 and a base 16 connected to the upper opening 2c of the fluid passage 2a of the connecting member 2 and having a discharge port 16a with a narrow tip for discharging a fluid substance to the outside of the container through the fluid passage 2a, Is equipped with.

That is, the discharge valve device of the present embodiment is installed in two passages of the fluid passage 2a and the air passage 2d of the connecting member 2 which is detachably connected to the inlet 1 of a predetermined container in a close contact manner. The fluid valve 4 and the air valve 3b to be placed are respectively opened and closed by the rotation of the rotary shaft 3, and outside air is introduced into the container through the air passage 2d and the air inflow conduit 15 connected to the inside of the container of the air passage 2d. The fluid in the container is discharged to the outside of the container through the fluid passage 2a and the mouthpiece 16 of a predetermined shape connected to the upper opening 2c of the fluid passage 2a.

Therefore, the fluid substance in the container can be discharged from the inlet 1 according to the opening / closing of the fluid valve, and at the same time, outside air also flows into the container according to the discharge amount of the liquid, so that pulsation does not occur. The smooth continuous discharge is possible. For this reason, it is possible to directly lubricate the fueling port of a machine or the like, and work efficiency is greatly improved. Further, even containers of different types can be used as long as they have the spout 1 of the same standard, and the range of application is wide. Moreover, there is no odor leakage of kerosene and the like, dust and the like can be prevented from entering the container, and the residual oil is slowly oxidized, so that the residual oil and the like can be effectively used and it is economical.

<Second Embodiment> FIG. 5 is a sectional view showing a main part of an exhaust valve device according to a second embodiment of the present invention. In the figure, the same reference numerals and symbols as those in the first embodiment denote the same or corresponding components as those of the first embodiment.

In the figure, 20 is a threaded portion 20 formed on the outer circumference of the spout 1 of this container, and a predetermined thread is threaded on the threaded portion 20. A collar 21 for assembling is fixed to the outer periphery of the lower opening 2b of the connecting member 2, and when the connecting member 2 and the spout 1 are joined together, the collar 21 and the upper surface of the spout 1 are separated from each other. The rubber seat 22 is interposed therebetween. Reference numeral 23 is a connecting member for connecting the connecting member 2 and the spout 1, and a screw portion 23a that can be screwed into the screw portion 20 of the spout 1 is formed on the inner diameter side. Then, by screwing the connecting member 23 and the pouring port 1, the flange 21 of the connecting member 2 is held by the flange portion 23b of the connecting member 23 and the pouring port 1, and at the same time, the rubber seat 22 is pouring with the flange 21. Since the pressure is applied between the connection member 2 and the spout 1, the connection member 2 and the spout 1 are brought into close contact with each other and connected.

Also in the discharge valve device of this configuration, similarly to the discharge valve device of the above-described embodiment, the connection member 2 is provided with the air passage 2d for inflowing outside air in addition to the fluid passage 2a for discharging the liquid and the like. A fluid valve 4 and an air valve 3b are provided on a rotary shaft 3 that penetrates through these two passages. Then, when the opening / closing lever 6 is rotated in the opening direction, the fluid valve 4 is opened and the fluid passage 2a is opened, and the air valve 3b of the rotating shaft 3 is also opened at the same angle and the air passage 2d is opened. On the contrary, by rotating the opening / closing lever 6 in the closing direction, the fluid valve 4 and the air valve 3b are closed, and the fluid passage 2a and the air valve 3b are closed. Therefore, the method of using the discharge valve device is substantially the same as that of the above-mentioned embodiment, and the description thereof is omitted here.

As described above, the discharge valve device according to the present embodiment is attached to the inlet 1 of a predetermined container such as a square 4-liter can, a square 18-liter can, or a round 20-liter can, and the fluid material in the container. And a connection member 2 having two passages, a fluid passage 2a for discharging the air to the outside of the container and an air passage 2d for introducing the outside air into the container, and a fluid passage 2a and an air passage 2d of the connection member 2, and an opening / closing lever. A rotary shaft 3 which rotates by 6; a fluid valve 4 which is located in the fluid passage 2a of the connecting member 2 and which opens and closes the fluid passage 2a by the rotation of the rotating shaft 3; and an air passage 2d of the connecting member 2. An air valve 3b, which is located inside and opens and closes the air passage 2d by the rotation of the rotating shaft 3, and a lower opening 2b which communicates with the fluid passage 2a of the connecting member 2 and the air passage 2d. Close to 1 Is connected to the inside of the container of the air passage 2d of the connecting member 2 and the close connection means composed of the connecting member 23 and the rubber seat 22 which are detachably connected with each other, and guides the outside air into the container through the fluid passage 2a. An air inflow conduit 15 and a mouthpiece 16 having a discharge port 16a which is connected to the upper opening 2c of the fluid passage 2a of the connecting member 2 and discharges a fluid substance to the outside of the container through the fluid passage 2a. I have it.

That is, the discharge valve device of the present embodiment is different from the above embodiment only in the configuration of the contact connection means, and like the above embodiment, is attached / detached to / from the spout 1 of a predetermined container in a close contact state. The fluid valve 4 and the air valve 3b located in the two fluid passages 2a and the air passages 2d of the connection member 2 which are operably connected are opened and closed by the rotation of the rotary shaft 3, respectively. The outside air is guided into the container via an air inflow conduit 15 connected to the inside of the passage 2d inside the container, and also through a fluid passage 2a and a mouthpiece 16 of a predetermined shape connected to the upper opening 2c of the fluid passage 2a. The fluid in the container is discharged to the outside of the container.

Therefore, also by the discharge valve device of this embodiment, the inflow of air into the can can be smoothly performed through the air inflow conduit 15, and the fluid can be continuously discharged according to the opening degree of the fluid valve 4. Therefore, a so-called pulsation phenomenon does not occur and smooth continuous discharge can be performed. Therefore, it is possible to directly refuel the refueling port of a machine or the like, and work efficiency is significantly improved. Further, similarly to the above-described embodiment, the mouthpiece 16 having the discharge port 16a with a thin curved tip is connected to the upper opening 2c of the fluid passage 2a of the connecting member 2 so that liquid or the like flows extremely smoothly and drains or drains water. The oil drainer is also good, and the liquid does not drop down and adhere to the container such as the can after passing through the base 16. Moreover, since the connecting member 2 and the spout 1 are connected by the connecting member 23 and the rubber seat 22 in close contact with each other, there is no possibility that liquid or the like will leak from the gap between the discharge valve device and the spout 1. .. Further, this discharge valve device can also be screwed into the threaded portion 20 of these spouts 1, even if different types of cans such as a square 4 liter can, a square 18 liter can, or a round 20 liter can are used. Since it can be installed if it is available, it can be used for cans of different types and has a wide range of applications. In addition, there is no odor leakage of kerosene, dust and the like can be prevented from entering the container, and the residual oil is slowly oxidized, so that the residual oil can be effectively used and it is economical. In the present embodiment, the tight connection means for detachably connecting the connection member 2 to the spout 1 of the container in a close contact state is composed of the connection member 23 and the rubber seat 22. Is integrally formed, and a screw portion that can be screwed into the screw portion 20 of the spout 1 is directly formed in the inner diameter portion of the lower opening portion 2b of the connection member 2, and is detachably connected via the packing 14. It doesn't matter.

Further, if a special adapter is used in place of the connecting member 23, the discharge valve device of the first embodiment can be used for a container in which the outer periphery of the spout 1 is the neck portion 20. It is possible. This will be described with reference to FIG.

FIG. 6 is a sectional view showing an essential part of an application example of the discharge valve device according to the second embodiment of the present invention. In the figure, the same reference numerals and symbols as those of the first and second embodiments indicate the same or corresponding constituent parts as those of the first and second embodiments.

In the figure, reference numeral 24 is an adapter having a screw portion 24a that can be screwed into the screw portion 20 of the spout 1 of the container, and the connection member 2 described in the first embodiment can be joined to the upper portion thereof. The joint portion 24b is formed. Therefore, the exhaust valve device having the same structure as that described in the first embodiment can be mounted through the adapter 24.

To mount the discharge valve device having this structure on the inlet 1, first, the inlet 1 of a container such as a can is opened, and the adapter 24 is screwed onto the inlet 1. By this screwing, the rubber seat 22 is pinched between the adapter 24 and the spout 1, so that the adapter 24 and the spout 1 are connected in a close contact state. Then, by fitting the lower opening 2b of the connecting member 2 into the joining portion 24b of the adapter 24, the spring-like clasp 13 and packing provided in the lower opening 2b of the connecting member 2 and having a predetermined elasticity. By 14, the connection member 2 and the adapter 24 are connected in a close contact state. As described in each of the above embodiments, the connecting member 2 is provided with an air passage 2d for inflowing outside air in addition to the fluid passage 2a for discharging the liquid and the like, and penetrates the inside of these two passages. A fluid valve 4 and an air valve 3b are disposed on the rotating shaft 3 that operates. Then, according to the rotation of the opening / closing lever 6, the fluid valve 4 and the air valve 3b are opened and closed, and the fluid passage 2a and the air valve 3b are opened and closed. Therefore, this discharge valve device can also be used in the same manner as in each of the above-described embodiments, and the same effects can be obtained.

By the way, in each of the above-described embodiments, the rotary valve 3 is notched to form the air valve 3b, but the structure like the fluid valve 4 is adopted, and the rotary valve 3 is separated from the rotary shaft 3. An air valve may be attached to the rotary shaft 3. Further, the shape of the mouthpiece 16 connected to the upper opening 2c of the fluid passage 2a of the connecting member 2 is not limited to the shape of the above-described embodiment, but may be a shape according to the liquid to be discharged or a filler port of the machine. It may be a shape corresponding to the shape such as. Further, in the case of the base 16 in which the length of the base 16 is short and the discharge port 16a at the tip is not thin, the base 16 and the connecting member 2 do not necessarily have to be assembled separately as in the above embodiment. However, the base 16 can be manufactured integrally with the connecting member 2.

[0029]

[Effect of the device]

 As described above, the discharge valve device of the present invention includes a connecting member having a fluid passage and an air passage, a rotating shaft, a fluid valve that opens and closes the fluid passage, and an air valve that opens and closes the air passage. Located in two passages of a fluid passage and an air passage of a connection member, which is provided with a tight connection means, an air inflow conduit, and a mouthpiece of a predetermined shape, and which is detachably connected to a spout of a predetermined container in a close contact state. The fluid valve and the air valve are individually opened and closed by the rotation of the rotating shaft, and outside air is introduced into the container through the air passage and the air inflow conduit connected to the inside of the container of the air passage, and the fluid passage and the fluid passage are also formed. By discharging the fluid in the container to the outside of the container through the mouthpiece of a predetermined shape connected to the upper opening of the, the fluid in the container can be discharged from the inlet according to the opening / closing of the fluid valve. At the same time, the amount of liquid As the outside air also flows into the container, pulsation does not occur, smooth and continuous discharge is possible, and it is possible to directly supply oil to the oil supply port of machines, etc., which not only greatly improves work efficiency, but also It can also be used for different types of containers, the range of application is expanded, even if there is no odor leakage of kerosene, it is possible to prevent dust and the like from entering the container, and the residual oil oxidizes slowly. It is economical because oil etc. can be used effectively.

[Brief description of drawings]

FIG. 1 is a sectional view showing an exhaust valve device according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a use state of the discharge valve device according to the first embodiment of the present invention.

FIG. 3 is a front view showing an opening / closing lever of the discharge valve device of FIG.

FIG. 4 is a cross-sectional view showing an AA cross section of the discharge valve device of FIG. 1.

FIG. 5 is a sectional view showing a main part of a discharge valve device according to a second embodiment of the present invention.

FIG. 6 is a cross-sectional view showing a main part of an application example of a discharge valve device according to a second embodiment of the present invention.

[Explanation of symbols]

 1 spout 2 connection member 2a fluid passage 2b lower opening 2c upper opening 2d air passage 3 rotating shaft 3a valve shaft 3b air valve 4 fluid valve 5 fixing pin 6 opening / closing lever 13 stopper 14 packing 15 air inflow conduit 16 base 20 screw part 21 collar 22 rubber seat 23 connecting member 23a screw part 23b flange part 24 adapter 24a screw part 24b joint part

Claims (1)

[Scope of utility model registration request] 1. A connection member, which is attached to a pouring port of a predetermined container and has two separate passages, a fluid passage for discharging a fluid substance in the container to the outside of the container and an air passage for introducing outside air into the container, A rotary shaft that penetrates the fluid passage and the air passage of the connection member and is rotated by an opening / closing lever; and a fluid valve that is located in the fluid passage of the connection member and that opens and closes the fluid passage according to rotation of the rotation shaft. An air valve that is located in the air passage of the connecting member and that opens and closes the air passage in response to rotation of the rotating shaft; and a lower opening portion that communicates with the fluid passage and the air passage of the connecting member. A tight connection means for detachably connecting to the mouth, an air inflow conduit connected to the inside of the air passage of the connection member to guide outside air into the container through the fluid passage, and a fluid passage of the connection member. In the upper opening A discharge valve device, which is connected to the base and has a predetermined shape for discharging a fluid substance to the outside of the container through the fluid passage.