JP3039032U - Device for measuring components in the gas phase in a container - Google Patents

Abstract

(57) Abstract: A specific component of a gas present in a closed container filled with a liquid, particularly in an empty space in the container is accurately measured. SOLUTION: A horizontal plate 2 on which a beer can 13 filled with a liquid is placed and fixed, and a perforation which is movable in a vertical direction with respect to the plate 2 and is introduced into an empty space in an upper part of the beer can 13. A nozzle 6, a sealing member 8 for sealing a perforated portion of the beer can 13 by the perforation nozzle 6, and a gas oxygen amount detection sensor 5 for detecting the oxygen amount of the gas in the empty portion supplied through the perforation nozzle 6. In the device for measuring a component in a gas phase in a container, including the above, a tilting mechanism 14 for tilting the entire device is provided below the plate 2.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a device for measuring a component in a gas phase in a container, and more particularly to a device for measuring a specific component of a gas from a thin gas layer existing in a closed container filled with a liquid such as a beverage.

[0002]

[Prior art]

 Conventionally, a device for measuring a component in a gas phase in a container is used, for example, in a beer containing a can to measure an oxygen component in a gas layer (hereinafter referred to as an “empty part”) in an upper part of the can after filling and sealing. used. For beer, the presence of oxygen causes a deterioration in flavor due to oxidation. For this reason, when filling and sealing beer, oxygen is prevented from entering and contacting the can as much as possible, and the above-mentioned inspection is performed to confirm whether there is any manufacturing defect.

FIG. 4 is a perspective view showing the overall configuration of a conventional device for measuring a component in a gas phase in a container (hereinafter referred to as “gas phase component measuring machine”). The measuring device shown in this figure comprises a horizontal plate 2 on which a pair of shafts 1 are fixed vertically, on which a container to be measured is placed. A holding member 9 for holding and fixing a container (not shown) placed at the placement place 2a on the plate 2 is attached to the shaft 1 at an arbitrary height. Further, the shaft 1 is provided with a moving mechanism capable of moving the oxygen amount detection sensor 5 in the vertical direction with respect to the plate 2 by tilting the handle 3. The sensor 5 is fixed to the moving mechanism by a fixing member 4. At the tip of the sensor 5, a hollow elongated perforation nozzle 6 for perforating the upper lid or bottom of the container and communicating with an empty space inside the container is connected via a two-way valve 7. The two-way valve 7 switches two flow paths between the pipe of the gas to be pumped to the valve 7 and the piercing nozzle 6 and between the piercing nozzle 6 and the sensor 5. The base of the perforation nozzle 6 is provided with a seal member 8. The rear end of the sensor 5 is connected by a cable to a display device (not shown) that displays the detected oxygen amount.

In order to measure with such a device, the container is previously pressed by the pressing member 9 to the mounting position 2a on the plate 2 and fixed, and then the handle 3 is tilted to perforate the nozzle 6 into the container. Is moved to perforate the upper lid or bottom of the container with the perforation nozzle 6.

When measuring the oxygen in the empty space of the container, the movement of the perforation nozzle 6 is stopped at the empty space in the upper part of the container. At this time, the gap between the perforated portions of the container is sealed by the seal member 8. After that, nitrogen gas (carbon dioxide gas, inert gas can also be used) is supplied to the empty space in the container through the hollow portion of the perforation nozzle 6, and after pressurizing, the 2-way valve 7 is switched to supply nitrogen gas. At the same time, the gas in the empty space of the container is supplied to the oxygen amount detection sensor (for gas) 5 through the hollow portion of the perforation nozzle 6.

By the way, when the container is a beer can, as shown in FIG. 5 showing a cross-sectional view of the beer can, the thickness from the can lid 10 to the beer liquid surface 11 (= the thickness of the empty portion 12) is 7 mm. The degree is thin. Therefore, if the nozzle 6 is accidentally put in the beer, or if the beer foams in the can due to vibration during transportation before measurement, the beer (liquid) is supplied to the sensor. It becomes attached and becomes undetectable. This is because the oxygen amount detection sensor for gas cannot measure the liquid.

Therefore, in the case of a beer can, the can was placed obliquely with respect to the measuring device for measurement. Fig. 6 shows how the can is attached when measuring the gas component in the beer can. As shown in this figure, by holding the beer can 13 in an inclined state and pressing it onto the plate 2 with the pressing member 9, it is possible to substantially increase the thickness of the empty portion in the upper part of the can. As a result, beer foam is not supplied to the sensor 5 through the perforation nozzle. In this way, conventionally, beer cans can be measured.

[0008] Beer bottles do not have to be installed diagonally with respect to the measuring instrument because there is a sufficient empty portion.

[0009]

[Problems to be solved by the device]

 In the gas phase component measuring instrument as described above, the container is pierced by the piercing nozzle and the piercing nozzle is introduced into the container to pressurize the inside of the container. Is provided so as to prevent the leakage. However, in the measurement of beer cans, as shown in Fig. 6, since the perforation nozzle is introduced from the corner edge of the outer periphery of the can, the sealing member may not function well, causing gas leakage and eliminating gas in the empty space. The oxygen amount detection sensor cannot be supplied.

Therefore, in view of the above-mentioned prior art, an object of the present invention is to accurately measure a specific component of a gas present in a liquid-filled closed container, particularly in an empty space in the container. To provide a machine.

[0011]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a horizontal flat plate on which a closed container filled with a liquid is placed and fixed, and a gas layer which is movable in the vertical direction with respect to the flat plate and is located in the upper part of the container. A perforation nozzle to be introduced, a seal member for sealing the perforation portion of the container by the perforation nozzle, and an oxygen amount detection sensor for gas for detecting the oxygen amount of the gas layer supplied through the perforation nozzle, The gas phase component measuring device is characterized by including a tilting mechanism for tilting the gas phase component measuring device itself. The hermetic container has at least an upper lid portion and a bottom portion that can be placed on the flat plate.

In the device of the present invention, when the closed container has at least an upper lid part and a bottom part that can be placed on a flat plate, such as a beer can, the gas layer in the upper part of the container is thin and the gas layer becomes a gas layer. The introduced perforation nozzle comes into contact with the liquid due to vibrations and the like, and when the liquid is supplied to the gas oxygen detection sensor, measurement becomes impossible. Therefore, the measurer tilts the measuring device itself by the tilting mechanism to collect the gas in the upper corner of the container to widen the thickness of the gas layer and introduce the perforation nozzle into the expanded gas layer. As a result, there is no risk of accidentally supplying the liquid in the container to the gas oxygen sensor.

Further, when the measuring device itself is tilted, the relative positional relationship between the closed container placed and fixed on the flat plate and the hole nozzle is substantially different from that when the closed container is placed horizontally on the flat plate. Therefore, the introduction point of the perforation nozzle is the upper lid part or the bottom part of the container in which the sealing member for sealing the perforation part sufficiently functions. As a result, gas leakage does not occur during measurement, and the components of the upper gas layer in a container such as a beer can can be measured. When only the container was tilted with respect to the measuring device as in the conventional case, the introduction point of the perforation nozzle was the corner edge of the outer circumference of the can, and the sealing member did not function well.

[0014]

[Embodiment of the invention]

 The present invention is characterized in that the conventional device shown in FIG. 4 is provided with a tilting mechanism for tilting the device main body. Therefore, the description of the device main body which is similar to the prior art is omitted here, and the tilting mechanism is mainly described. Will be described with reference to the drawings.

FIG. 1 is a simplified diagram best showing the features of an embodiment of the device for measuring a component in a gas phase in a container according to the present invention. (A) is the state of the container before measurement, (b) Indicates the condition of the container at the time of measurement. Further, in this drawing, the same components as those of the apparatus shown in FIG. 4 are designated by the same reference numerals.

In this invention, a tilting mechanism 14 for tilting the entire device is provided below the plate 2 of the conventional measuring device shown in FIG. Further, a fixing member 15 for fixing the container so that the container does not slide down when the plate 2 is tilted by the tilting mechanism 14 is installed on the surface of the plate 2 where the container is placed.

The tilting mechanism 14 has a base 18 installed on a horizontal plane, and one end of a connecting member 17 is pivotally supported at an end of the base 18. The other end of the connecting member 17 is pivotally supported near the center of the plate 2 of the measuring device, and the plate 2 can be tilted by raising the connecting member 17 as shown in FIG. 1 (b). In order to maintain the inclination of the plate 2 at a predetermined angle, a stopper groove 16 into which the lower end of the inclined plate 2 fits is formed on the base 18.

FIG. 2 shows the relationship between the empty space in the beer can 13 and the perforation nozzle 6 when the entire measuring device is tilted by the tilting mechanism 14. As shown in Figs. 1 and 2, by tilting the measuring device and the entire can to be measured, the relative positional relationship between the can and the nozzle is substantially the same as when the can is placed on a flat surface, so that it is flat. The can lid can be pierced, and the seal member works well. Further, the position of the perforation nozzle is as close as possible to the outer peripheral direction of the lid to take the thickness of the empty portion, and the thickness from the can lid 10 to the beer liquid surface 11 at such a nozzle position. Is about 17 mm (outer diameter of about 66 mm, height of about 167 mm and tilting the can of 500 ml for 20 degrees), and it is sufficiently wider than when the can is placed horizontally (about 7 mm), and the liquid is incorrect. There is no risk of supplying it to the sensor. Therefore, it is possible to accurately measure the specific component of the gas existing in the empty space inside the beer can.

The above-mentioned tilting mechanism is not limited to the form shown in FIG. 1, and may have any form as long as it has a structure capable of tilting the measuring device itself. For example, FIG. 3 shows another example replacing the tilting mechanism. 3A shows the state before the inclination, and FIG. 3B shows the state after the inclination. The tilting mechanism 19 shown in this figure has a base 18 which is installed on a horizontal surface as described above. An end of the base 18 and an end of the plate 2 of the measuring device are pivotally supported by a connecting portion 20. One end of a supporting member 21 is pivotally supported near the center of the plate 2 of the measuring device, and a stopper groove 22 into which the other end of the supporting member 21 is fitted is formed on the base 18. As a result, as shown in FIG. 3B, when the plate 2 is raised around the connecting portion 20 as an axis, the supporting member 21 hangs down by its own weight, and the plate 2 is fitted by fitting the end of the supporting member 21 into the stopper groove 22. It is maintained at a predetermined tilt angle.

In this embodiment, the beer can is used as an example of the container to be measured, but the present invention has a cylindrical can, a rectangular can, or the like having at least an upper lid part and a bottom part that can be placed on a flat plate. As long as it is a closed container, it is effective for any type of container.

[0021]

[Effect of the invention]

 INDUSTRIAL APPLICABILITY As described above, according to the present invention, a liquid-filled closed container is placed and fixed on a horizontal flat plate, and is vertically movable with respect to the flat plate and is introduced into a gas layer in the upper part of the container. A container including a perforation nozzle, a seal member for sealing a perforated portion of the container by the perforation nozzle, and a gas oxygen amount detection sensor for detecting the oxygen amount of the gas layer supplied through the perforation nozzle In the device for measuring a component in the gas phase in, the tilting mechanism for tilting the gas component measuring device itself is provided, so that the gas in the container is not supplied to the oxygen amount detection sensor for gas through the perforation nozzle. The layer thickness can be sufficiently widened. In addition, the location where the perforation nozzle is introduced is the top or bottom of the container where the sealing member that seals the perforated part functions sufficiently, so that gas leakage does not occur during measurement, and the inside of a container such as a beer can does not leak. The constituents of the upper gas layer can be measured.

[Brief description of the drawings]

FIG. 1 is a simplified diagram best showing the characteristics of one embodiment of the device for measuring a component in a gas phase in a container according to the present invention.

FIG. 2 is a view for explaining the relationship between the empty portion of the can container and the perforation nozzle by the device shown in FIG.

FIG. 3 is a simplified view best showing the characteristics of another embodiment of the device for measuring a component in a gas phase in a container according to the present invention.

FIG. 4 is a perspective view showing an overall configuration of a conventional device for measuring a component in a gas phase in a container.

FIG. 5 is a cross-sectional view showing the thickness of an empty portion of a beer can when it is placed on a flat surface.

FIG. 6 is a side view showing how a can is attached when measuring a gas component in a beer can with the device shown in FIG.

[Explanation of symbols]

 2 plate 3 handle 5 oxygen amount detection sensor 6 perforation nozzle 9 holding member 13 beer can 14,19 tilting mechanism 15 fixing member 16,22 stopper groove 17 connecting member 18 base 20 connecting portion 21 supporting member

Claims (2)

[Utility model registration claims] 1. A horizontal flat plate on which a closed container filled with a liquid is placed and fixed, and a perforation nozzle which is movable in a vertical direction with respect to the flat plate and is introduced into a gas layer in an upper part of the container. A sealing member that seals a perforated portion of the container by the perforation nozzle; and an oxygen amount detection sensor for gas that detects the oxygen amount of the gas layer supplied through the perforation nozzle. A component measuring device comprising a tilting mechanism for tilting the component measuring device itself, wherein the component measuring device is in a gas phase in a container. 2. The device for measuring a component in a gas phase in a container according to claim 1, wherein the closed container has at least an upper lid portion and a bottom portion that can be placed on the flat plate.