CN115227230A - Gas collection device and application - Google Patents

Abstract

The invention provides a gas collecting device and application, which can monitor whether gas blown by a user meets the requirement of a specified amount. The gas collecting device comprises a gas collecting unit and a gas quantity monitoring unit, wherein the gas collecting unit is provided with a gas inlet part, a gas outlet part and a gas flow path for communicating the gas inlet part with the gas outlet part, a test membrane for collecting substances in gas is arranged in the gas flow path, the gas collecting unit is provided with a window part for detecting the test membrane, gas entering from the gas inlet part or gas flowing out from the gas outlet part can enter the gas quantity monitoring unit, the gas quantity monitoring unit monitors the quantity of the gas entering from the gas inlet part or the quantity of the gas flowing out from the gas outlet part, the gas quantity monitoring unit is provided with a display part, the display part comprises a display area, the gas flowing into the gas quantity monitoring unit passes through the display area, the display area displays different contents according to different quantities of the passing gas, and the gas quantity monitoring unit is provided with a transparent area for observing the display area.

Description

Gas collection device and application

Technical Field

The invention relates to the technical field of gas collection. In particular to a gas collecting device and application.

Background

In the past, in order to obtain valuable information on the pathophysiological conditions of patients, there have been technical solutions for collecting Volatile Organic Compounds (VOCs) present in exhaled breath, which are potential diagnostic biomarkers for various diseases and metabolic activities. The concept of breath metabolomics (breath metabolomics) is recently presented, and the distribution of VOCs in human breath will be altered when a transition from a healthy state to a pathological state occurs and can be detected and used for diagnosis and monitoring.

Since the 1970 s when the Pauling team used Gas Chromatography (GC) to detect over 200 VOCs in human breath, more and more research teams were studying expiratory metabolomics. During pathophysiological processes, alterations in cellular metabolism result in changes in the VOCs that are byproducts of biochemical reactions. Including hypoxia, cellular hyperproliferation, excessive inflammation and reactive oxygen species activity, and other cancer-related pathological mechanisms, result in significant changes in the spectra and concentrations of both local and systemic VOCs.

In the structure of carrying out the analysis to above-mentioned VOCs, can carry out the preconcentration in order to improve the analytical precision to the sample, the preconcentration can reduce the huge loss that can bring in the separation and purification process to a certain extent. Common gas sample concentration methods are Thermal Desorption (TD) tube and Solid Phase Microextraction (SPME).

At present, in the existing structure for collecting and detecting gas, a user blows air into an air bag through a mouth, and after the air bag is full of air, a gas sample in the air bag is pre-concentrated and then released into a detection instrument for detection. Therefore, it is necessary to take out the gas from the bag in operation, which is troublesome.

In order to improve the convenience of operation, an apparatus capable of detecting a gas without taking out the gas is desired.

Disclosure of Invention

Problems to be solved by the invention

The invention aims to provide a novel gas collecting device and application, which can collect substances in gas without taking out the gas and can replace an air bag to monitor whether the gas quantity reaches a preset quantity.

Means for solving the problems

The invention provides a gas collecting device, which comprises a gas collecting unit and a gas quantity monitoring unit, wherein the gas collecting unit is provided with an air inlet part, an air outlet part and a gas flow path communicated with the air inlet part and the air outlet part, a test film is arranged in the gas flow path and is used for collecting substances in gas, the gas collecting unit is provided with a window part for detecting the test film, the gas entering the gas collecting unit from the air inlet part or the gas flowing out from the air outlet part can enter the gas quantity monitoring unit, the gas quantity monitoring unit is used for monitoring the quantity of the gas entering the gas collecting unit from the air inlet part or the quantity of the gas flowing out from the air outlet part, the gas quantity monitoring unit is provided with a display part, the display part comprises a display area, the gas flowing into the gas quantity monitoring unit passes through the display area, the display area displays different contents according to different quantities of the passing gas, and the gas quantity monitoring unit is provided with a transparent area for observing the display area.

In at least one embodiment, the display region displays different colors according to the amount of gas passing therethrough, and displays a predetermined color when a predetermined amount or more of gas passes therethrough.

In at least one embodiment, the display portion further includes a reference region that displays the predetermined color, or the display portion further includes a reference region that displays the predetermined color and a divided region provided between the display region and the reference region, the divided region being in a color different from the display region and the reference region, or the display portion further includes two reference regions that are located between the two display regions in a flow direction of the gas flowing into the gas amount monitoring unit, the reference region displaying the predetermined color.

In at least one embodiment, the gas amount monitoring unit is detachably attached to the gas collection unit from a side of the gas outlet portion of the gas collection unit.

In at least one embodiment, the gas amount monitoring unit has a non-transparent region that shields the window portion of the gas collection unit in a state in which the gas amount monitoring unit is mounted to the gas collection unit.

In at least one embodiment, the gas amount monitoring unit includes two resin layers stacked, one of the resin layers is formed of a transparent material to constitute the transparent region, the other of the resin layers is formed of a non-transparent material to constitute the non-transparent region, and the display portion is sandwiched between the two resin layers.

In at least one embodiment, the gas amount monitoring unit includes: and a light-shielding layer provided between any two adjacent resin layers in a region other than the display portion, the light-shielding layer being provided between any two adjacent resin layers to constitute the non-transparent region.

In at least one embodiment, the gas amount monitoring unit has a gas passing region and edge sealing regions located at both sides of the gas passing region, the gas passing region and the edge sealing regions at both sides extend in a length direction of the gas amount monitoring unit, and the gas passing region is located between the two edge sealing regions in a cross section of the gas amount monitoring unit.

In at least one embodiment, the display portion is provided in a middle of the gas flow path or in the gas inlet portion or in the gas outlet portion so that the gas flowing into the gas collection unit passes through the display area, wherein: the transparent region is provided in a housing of the gas collection unit so that the display portion can be observed through the transparent region.

In at least one embodiment, the display region is located within a region that is viewable through the window portion, at least a partial region of the window portion forming the transparent region.

In at least one embodiment, the gas collection device further comprises: and a virus filtration layer provided in the middle of the gas flow path or in the gas inlet portion or in the gas outlet portion, the virus filtration layer allowing passage of gas but not allowing passage of viruses.

In at least one embodiment, the gas collection device further comprises: the identification module, the identification module is located in the gas acquisition unit, the identification module is in the content that shows when the test membrane became invalid with the content that shows when the test membrane did not become invalid is different, wherein, the identification module is located can see through the position that the window portion observed, perhaps, the identification module is located can see through the shell of gas acquisition unit is equipped with the position that the transparent region observed, perhaps, the shell of gas acquisition unit has and is used for observing the window of identification module.

The invention also provides a use of the gas collection device of any one of the above aspects, comprising at least one of the following uses: and performing qualitative or quantitative analysis on at least one of the content of organic matters, the content of carbon dioxide, the content of carbon elements and the content of alcohol in the gas, or identifying preset characteristics of the gas.

ADVANTAGEOUS EFFECTS OF INVENTION

The invention provides a gas collecting device and application, which can collect substances in gas without taking out the gas and can replace an air bag to monitor whether the gas blown by a user meets the requirement of a specified amount.

Drawings

Fig. 1 is a perspective view of a gas collection unit according to an embodiment of the present invention.

Fig. 2 is an exploded view of a gas collection unit of one embodiment of the present invention.

FIG. 3 is a side cross-sectional view of a gas collection unit of one embodiment of the present invention.

Fig. 4 is a front view of the air intake portion of the gas collection unit of one embodiment of the present invention.

Fig. 5 is a side cross-sectional view of a body portion of a gas collection unit in accordance with an embodiment of the present invention.

Fig. 6 is a perspective view of a window portion of a gas collection unit according to an embodiment of the present invention.

FIG. 7 is a side cross-sectional view of a window portion of a gas collection unit of one embodiment of the present invention.

Fig. 8 is a plan view of a gas amount monitoring unit according to an embodiment of the present invention.

Fig. 9 is a plan view of a gas collection unit according to an embodiment of the present invention inserted into a gas amount monitoring unit (constituting a gas collection device).

Fig. 10 is a side view of a state in which a gas collection unit according to an embodiment of the present invention is inserted into a gas amount monitoring unit.

Fig. 11 is a view seen from one side in the longitudinal direction of the gas collection device in the above-described inserted state.

Fig. 12 is a view seen from the other side in the longitudinal direction of the gas collection device in the above-described inserted state.

Fig. 13 illustrates one embodiment of transparent regions and non-transparent regions in the present invention.

Fig. 14 shows another embodiment of transparent and non-transparent regions of the present invention.

Fig. 15 shows yet another embodiment of transparent and non-transparent regions in the present invention.

Fig. 16 shows a schematic view of the insertion opening of the two-layer structure in the present invention.

Description of the reference numerals

1. A gas collecting unit, 2, an air inlet portion, 3, an air outlet portion, 4, a detection portion, 41, a main body portion, 42, a notch portion, 411, a space portion, 421, a planar portion, 422, a first convex portion, 423, a second convex portion, 424, a through hole, 5, a test film, 6, a window portion, 61, a planar portion, 62, a first concave portion, 63, a second concave portion, 64, a snap, 621, a first stepped portion, 631, a second stepped portion, 65, a detection region, P, an axis of the detection portion, K1 to K6, an opening, L1, a first flow path, L2, a second flow path, L3, a third flow path, L4, a fourth flow path, 10, a gas amount monitoring unit, 11, a gas passage region, 110, an insertion opening, 111, a communication portion, 112, a monitoring portion, 12, a seal edge region, 20, a division region, 21, a display region, 22, a reference region, 23, a vent hole, a non-transparent region, B, transparent region, F1 to F4, a resin layer, S.

Detailed Description

Hereinafter, a gas collecting apparatus according to the present invention will be described with reference to the drawings. The scope of the present invention is not limited to the following embodiments, and can be arbitrarily changed within the scope of the technical idea of the present invention. The scale, number, and the like shown in the drawings are not intended to limit the gas collecting apparatus of the present application.

< embodiments of the present invention >

The gas collection device is provided with a gas collection unit and a gas quantity monitoring unit, wherein the gas collection unit supplies gas to flow in and out, and collects substances in the gas flowing through the gas collection unit, so that the subsequent detection is performed. The gas quantity monitoring unit can also be used for gas inflow and outflow, and the gas quantity monitoring unit can monitor whether the quantity of the gas flowing into the gas quantity monitoring unit meets the requirement of a minimum quantity (specified quantity). According to the gas acquisition device, the gas quantity monitoring unit is arranged on the gas acquisition unit, so that whether the amount of blown gas meets the requirement of the minimum amount can be monitored on the basis of acquiring substances in the gas, whether the amount of gas acquired by the acquisition unit meets the requirement is monitored, and the detection precision of the gas acquisition device is improved.

The following description is directed to each component/assembly/unit of the gas collection device.

< gas collecting Unit >

Referring to fig. 1 to 3, a gas collecting unit 1 of the present application includes an inlet portion 2, an outlet portion 3, and a detection portion 4. The detection unit 4 is a member through which gas flows, and the shape of the detection unit 4 is preferably cylindrical from the viewpoint of connection, and the inner diameter is about 1cm. The detection portion 4 is open at both ends thereof so that gas enters the detection portion 4 from one end and flows out from the other end. The inlet portion 2 and the outlet portion 3 are connected to both ends of the detection portion 4 in an airtight manner by screw connection. As long as the air inlet portion 2 and the air outlet portion 3 can be connected to the detection portion 4 in a sealed manner, the external shape of the detection portion 4 is not limited, and the connection method is not limited to screw connection, and may be other methods such as interference fit and engagement. The inlet portion 2, the outlet portion 3, and the detection portion 4 may be integrally formed.

1-1.< intake part >

The air intake unit 2 is connected to one end of the detection unit 4, and is detachably attached to the detection unit 4 by screwing. The air inlet 2 has a cylindrical shape as a whole, and a user can blow air into the air inlet 2 with a mouth, and as shown in fig. 2, by providing a portion recessed radially inward from the air inlet 2, the user can easily hold the air inlet 2 with the mouth and blow air. As shown in fig. 4, a flow regulating plate is provided inside the intake portion 2, and a plurality of through holes are provided in the flow regulating plate. The airflow blown out from the mouth can be sent to the detection unit 4 in the form of a uniform and regular airflow by the flow regulating plate. The shape of the air inlet 2 is not limited, and may be any shape as long as it can be used for blowing air by a user.

1-2 < air outlet portion >

The air outlet portion 3 is connected to the other end of the detection portion 4, and is detachably attached to the detection portion 4 by screwing.

The large diameter portion 31, the reduced diameter portion 32, and the small diameter portion 33 are integrally formed in the gas outlet portion 3, the large diameter portion is a portion of the gas outlet portion 3 connected to the detection portion 4, and has an outer shape similar to that of the detection portion 4, for example, a cylindrical shape, and in a state where the gas outlet portion 3 is connected to the detection portion 4, the outer peripheral wall of the large diameter portion 31 is substantially flush with the outer peripheral wall of the detection portion 4, so that the entire structure of the gas collecting unit 1 is smooth and beautiful.

The reduced diameter portion 32 has a smaller outer diameter as it extends from the side of the detection portion 4 of the gas outlet portion 3 toward the side opposite to the detection portion 4, and a small diameter portion 33 is formed at the tip of the reduced diameter portion 32.

1-3.< detection section >

As described above, the entire detection unit 4 is, for example, cylindrical, and gas can be blown into the detection unit 4 from the gas inlet unit 2 and sent to the gas outlet unit 3 through the gas flow path inside the detection unit 4. The detection unit 4 includes: a main body portion 41 which constitutes the outer shape of the detection portion 4, has a flow path for flowing gas therein, has a substantially cylindrical outer shape, and has a notch portion 42 formed by recessing the outer peripheral wall of the main body portion 41 inward in the radial direction as shown in fig. 2; a test film 5 disposed in the notch 42 for testing the gas in the gas flow path in the detection section 4 for detection; and a window portion 6, wherein the window portion 6 is detachably attached to the main body portion 41 so as to sandwich the test film 5 between the window portion 6 and the main body portion 41, and has a gas flow path for flowing gas therein.

As shown in fig. 5, in the main body 41, the cutout 42 is disposed at a portion closer to the air outlet portion 3, so that a space 411 having a large space can be provided inside the portion closer to the air inlet portion 2 of the main body 41, and the gas blown by the user can pass through the space 411 before flowing into the gas flow path. That is, the space portion 411 is on the upstream side of the test membrane 5. In the space portion 411, a drying agent can be placed as necessary, or a material for filtering the matter can be placed according to the matter to be filtered. An opening K1 is formed in the space portion 411, and the opening K1 communicates with an opening K2 described later to allow gas to flow therethrough.

The cutout portion 42 is formed to be recessed radially inward of the cylindrical body portion 41. The test film 5 and the window portion 6 are located at the notch portion 42. Specifically, the notch portion 42 is formed with a flat surface portion 421, and the installation of the window portion 6 described later is facilitated by the flat surface portion 421. A first projection 422 and a second projection 423 are provided to project upward from the flat surface 421, and the test film 5 is provided on the first projection 422. The first projecting portion 422 and the second projecting portion 423 have a projection height smaller than the recess depth of the notch portion 42, that is, when the window portion 6 described later is attached to the main body portion 41, the window portion 6 is drawn within the entire contour of the detection portion 4 or is substantially flush with the entire contour of the detection portion 4, thereby facilitating formation of a portion in which the test film 5 and the window portion 6 are provided in the main body portion 41, and making the entire structure of the gas collection unit 1 smooth and beautiful.

Here, the portion of the first convex portion 422 where the test membrane 5 is disposed is preferably set to be parallel to the axis P of the detection portion 4 (gas collection unit 1). Specifically, in the case where the detection section 4 (gas collection unit 1) is placed horizontally, the portion of the first convex section 422 where the test membrane 5 is disposed can be made horizontal, whereby it is convenient to place the test membrane 5 stably on the portion, and further, since the portion of the first convex section 422 where the test membrane 5 is disposed is parallel to the axis P of the detection section 4, the test membrane 5 placed on the first convex section 422 is also parallel to the axis P of the detection section 4. Thus, when the detection unit 4 is in a horizontal state, the test film 5 can be made parallel to the horizontal plane, and the detection of the test film 5 by the detection device can be facilitated. However, the placement form of the test film 5 is not limited as long as the test film 5 can be stably placed in the detection section 4 and the test film 5 can be clearly detected through the window section 6.

The first protrusion 422 has an opening K5, the second protrusion 423 has an opening K2, and the openings K5 and K2 allow gas to flow therethrough. When the test film 5 is placed on the first convex portion 422, the test film 5 is set and fixed in such a manner that one side surface of the test film 5 completely covers the opening K5 on the first convex portion 422.

Referring to fig. 2 and 5, a through hole 424 is provided in the flat surface 421 so that the catch 64 of the window 6 is inserted and engaged therewith. The window portion 6 can be engaged with the body portion 41 by inserting the catch 64 of the window portion 6 into the through hole 424.

Referring to fig. 6, the window portion 6 may be formed of a transparent and flexible material, the transparency enabling the detection device to detect the test film 5 through the window portion 6, thereby enabling detection, and the flexibility enabling the clip 64 to be appropriately bent to facilitate attachment and detachment of the window portion 6. The window portion 6 is provided with a flat surface portion 61 corresponding to the flat surface portion 421 in the main body portion 41, and the flat surface portion 61 is opposed to the flat surface portion 421 when the window portion 6 and the main body portion 41 are attached together. The planar portion 61 is provided with a first recessed portion 62 and a second recessed portion 63. The sizes of the first and second recesses 62 and 63 correspond to the sizes of the first and second protrusions 422 and 423, respectively, that is, the first and second protrusions 422 and 423 can be fitted into the first and second recesses 62 and 63, respectively.

Further, as shown in fig. 6, when the first step 621 is formed in the first recess 62 and the second step 631 is formed in the second recess 63, and the test film 5 is provided on the first protrusion 422 and the window portion 6 and the main body portion 41 are attached to each other, the first step 621 can be brought into airtight contact with the first protrusion 422 via the test film 5, and the second step 631 can be brought into airtight contact with the second protrusion 423. With the above configuration, the test membrane 5 can be reliably fixed, and the test membrane 5 is prevented from being displaced and displaced in the detection section 4, which results in failure to collect the substances in the gas satisfactorily.

As shown in fig. 2 and 3, when the window portion 6 is attached to the main body portion 41, the window portion 6 is located above the test film 5, the test film 5 is disposed below the window portion 6 in the gas flow path of the detection portion 4, the test film 5 faces the window portion 6, and the gas flow path of the detection portion 4 is configured such that: the gas introduced through the gas inlet 2 is introduced into the test membrane 5 from one side of the test membrane 5 near the window 6, and is then discharged from the other side of the test membrane 5 to the gas outlet 3.

As shown in fig. 2 and 3, the window portion 6 further includes a detection region 65, the detection region 65 is planar, and when the window portion 6 is attached to the body portion 41, the angle formed by the plane of the detection region 65 and the plane of the test film 5 is 30 ° or less, whereby the test film 5 can be detected through the window portion 6 satisfactorily, preferably 20 ° or less, more preferably 10 ° or less, and most preferably the plane of the detection region 65 is parallel to the plane of the test film 5. The detection region 65 referred to herein is a region of the window portion 6 for detecting the test film 5, that is, the test film 5 can be detected through the detection region 65 of the window portion 6.

In the gas collection unit 1, the window portion 6 is opposed to the test membrane 5. However, the positional relationship between the window portion 6 and the test membrane 5 is not limited to this, and for example, the window portion 6 may be entirely opposed to the test membrane 5 or may be partially opposed to the test membrane 5. The test film 5 may be detected by the detection device through the detection region 65 of the window portion 6. In this case, a reflecting member capable of reflecting the detection light may be optionally additionally provided to the detection unit 4 as necessary, and the description thereof will be omitted.

Preferably, the window portion 6 covers at least a part of the test film 5 when the window portion 6 is projected on the plane of the test film 5, and more preferably, the window portion 6 and the test film 5 are completely opposed, and when the window portion 6 is projected on the plane of the test film 5, the test film 5 completely includes the projection of the window portion 6 or the projection of the window portion 6 completely includes the test film 5 (that is, the window portion 6 completely covers the test film 5). It is further preferred that the test membrane 5 is completely contained within the projection of the window portion 6 when the window portion 6 is projected on the plane in which the test membrane 5 is located. Thereby, the test membrane 5 can be detected well.

The window portion 6 has a gas flow path therein. As shown in fig. 7, the window portion 6 has an opening K3 and an opening K4 on both sides of the gas flow path, the opening K3 corresponding to the opening K2 of the body portion 41, and the opening K4 corresponding to the opening K5 of the body portion 41. That is, the gas flow path in the window portion 6 is open at a portion of the window portion 6 facing the test membrane 5. By positioning the gas flow path inside the window portion 6 above the test film 5 and having an opening facing the test film 5, gas can be reliably introduced into the test film 5 from the side of the test film 5 near the window portion 6.

As shown in fig. 6, the catch 64 is provided so as to protrude downward from the flat surface portion 61, the catch 64 can be bent appropriately, and when the window portion 6 is attached to the main body portion 41, the catch 64 can be inserted into the through hole 424 by bending the catch 64 appropriately, and then the catch 64 is restored to the original shape by the restoring force, and is engaged with the main body portion 41. When detaching the window portion 6, the catch 64 is appropriately bent and displaced from the engagement position, and can be pulled out from the through hole 424, whereby the window portion 6 can be detached from the main body portion 41.

1-4.< test films >

The test membrane 5 may collect the gas by physically and/or chemically collecting substances in the gas passing through the gas flow path. Specifically, the test membrane 5 is capable of testing multiple substances or multiple components in a gas by physical adsorption, chemical reaction, action, or the like. For example, the test membrane 5 is configured to be capable of chemically or physically adsorbing a specific substance in a gas, and when adsorption of the specific substance by the test membrane 5 is detected through the window 6 described later, the specific substance contained in the gas can be detected. Alternatively, the test membrane 5 contains a substance that can chemically react with a specific substance in the gas, and when the test membrane 5 is detected to have chemically reacted through the window portion 6 described later, the specific substance contained in the gas can be detected.

In one example, the test membrane may be a test strip for measuring diabetes, a test strip for measuring helicobacter pylori, or the like.

Optionally, the test membrane includes a plurality of test regions, the plurality of test regions are arranged at intervals, each test region includes a reagent, the reagent is used for testing the gas, and the color of the reagent changes after the reagent reacts with a corresponding reactant in the gas.

The reagent comprises: one or more of quantum dot materials, chemical dyes and fluorescent luminescent materials.

The quantum dot materials may include group II-VI CdS, cdSe, cdTe, znS, znSe, pbS, pbSe, group III-V InP, gaP, gaN, alN, and core-shell materials CdS/ZnS, cdSe/CdS, cdSe/ZnS, cdSe/CdS/ZnS, cdTe/CdS/ZnS, znSe/ZnS, inP/ZnSe, inP/ZnS, inP/ZnSe/ZnS, inP/GaP/ZnS, carbon quantum dots, perovskite quantum dots, noble metal (e.g., au, ag, etc.) quantum dots, and the like.

The chemical dye may be an acid-base indicator dye, a lewis acid-base dye, a redox dye, a pi-pi conjugated dye, or the like.

Specifically, the chemical dye and the fluorescent light-emitting material may be: thymol blue, methyl yellow, methyl orange, bromophenol blue, bromocresol Green, bromocresol purple, bromocresol blue, neutral Red, phenol Red, phenolphthalein, thymolphthalein, hexanal (DNPH), dinitrophenyl hydrazine, copper tetraphenylporphyrin (CuTPP), ferriporphyrin (FeTPP), zinc porphyrin (ZnTPP), tetraphenylporphyrin (H2 TPP), methyl Red (Methyl Red), bromophenol Red (Bromophenol Red), bromothymol Green (Bromophenol Green), porphyrin, metalloporphyrin type Dye, bromoxylenol blue, 4-nitrophenylhydrazine, rerdchat's Dye, malachite Green Chloride (Malachite Green Chloride), self-synthesized hydrazino group-containing fluorescent molecules, manganese porphyrin.

1-5 < Assembly of gas Collection Unit 1 >

As described above, referring to fig. 2, 5, 6, and the like, the test film 5 is placed on the first raised part 422 such that the test film 5 completely covers the opening K5 of the first raised part 422, and the window part 6 is mounted on the main body part 41 to form the detection part 4. As described above, the through hole 424 of the main body 41 corresponds to the catch 64 of the window 6, and the first and second protrusions 422 and 423 of the main body 41 correspond to the first and second recesses 62 and 63 of the window 6. Therefore, by inserting the clip 64 into the through hole 424 and engaging the same, the first projection 422 and the second projection 423 of the main body 41 can be fitted into the first recess 62 and the second recess 63 of the window 6, respectively. Thus, the body 41 and the window 6 are tightly engaged with each other through the test film 5 to form an airtight gas flow path, and the gas flowing through the gas flow path can pass from the side of the test film 5 near the window 6 to the other side of the test film 5 through the main surface of the test film 5, and the test film 5 is located below the window 6 and opposite to the window 6 in the gas flow path, so that the test film 5 can be detected through the transparent window 6 located above the test film 5.

In addition, the inlet portion 2 and the outlet portion 3 are screwed to the detection portion 4. After that, the gas amount monitoring means 10 described later may be connected to the gas outlet portion 3.

In replacing the test film 5, the user presses both sides of the window portion 6, causes the snaps 64 to bend appropriately so that the window portion 6 can be detached from the body portion 41, then replaces a new test film 5, and installs the window portion 6 again.

1-6 < gas flow passage >

As described above, the gas flow path is formed in the detection section 4, and the gas inlet section 2 and the gas outlet section 3 communicate with each other through the gas flow path. The gas flow path includes: a first flow path L1 (see, for example, fig. 5) provided in the main body portion 41, the first flow path L1 having an opening K1 at one end, communicating with the space portion 411 via the opening K1, and further communicating with the intake portion 2, the first flow path L1 having an opening K2 at the other end; a second flow path L2 (see, for example, fig. 7) provided in the window portion 6, the second flow path L2 having an opening K3 at one end and communicating with the opening K2 at the other end of the first flow path L1 via the opening K3; a third flow path L3 provided in the window 6, one end of the third flow path L3 being communicated with the other end of the second flow path L2, the third flow path L3 being positioned above the test membrane 5, and the other end of the third flow path L3 having an opening K4 facing the test membrane 5; and a fourth flow path L4 (see, for example, fig. 5) provided in the body portion 41, the fourth flow path L4 having an opening K5 at one end and communicating with the other end of the third flow path L3 via the opening K5, and the fourth flow path L4 having an opening K6 at the other end and communicating with the gas outlet portion 3 via the opening K6.

The structure of the gas flow path is not limited to this, and the gas may be introduced into the test film 5 from the side of the test film 5 near the window portion 6 and then discharged from the other side of the test film 5, and for example, the gas flow path may be formed only in the main body portion 41, but preferably, a flow path is also formed in the window portion 6. The second channel L2 and the third channel L3 may be one channel.

In the gas collection unit 1, the cross section of the gas flow path is rectangular, the flow area (i.e., cross-sectional area) at any one position of the first flow path L1 is, for example, 2mm × 5mm or more, the flow area (i.e., cross-sectional area) at any one position of the second flow path L2 is, for example, 1mm × 5mm or more, the flow area (i.e., cross-sectional area) at any one position of the third flow path L3 is, for example, 3mm × 7mm or more, and the flow area (i.e., cross-sectional area) at any one position of the fourth flow path L4 is, for example, 3mm × 7mm or more. Thereby, the user can be made not to feel a lot of effort in the process of blowing, the flow of the gas is made smooth, and it can be ensured that the test membrane 5 is exposed in the gas flow path to an area sufficient for detection. The cross-sectional shape of the gas flow path is not limited to a rectangle, and may be other shapes.

It is preferable that the gas flow path in the present embodiment is a polygonal line shape, and as shown in fig. 3, the first flow path L1, the second flow path L2, the third flow path L3, and the fourth flow path L4 constitute a polygonal line-shaped gas flow path, and here, the polygonal line shape is not narrowly defined as the polygonal shape of the gas flow path in fig. 3, but is broadly understood to include a series of meanings that substantially change the gas flow direction, such as bending, curving, and the like. Furthermore, the bending position, the number of times of bending, the bending angle, and the like of the gas flow path are not necessarily limited. The gas flow path may be other than a folded line, as long as the gas flow path can communicate the gas inlet portion 2 and the gas outlet portion 3 and introduce gas from the side of the test film 5 near the window portion 6.

1-7 < flow of gas in gas Collection Unit 1 >

As shown in fig. 3, the direction of the arrows indicates the direction of flow of the gas in the gas collection unit. When the user blows air into the air inlet portion 2 with his/her mouth, the air enters the space portion 411, further enters the air flow path of the main body portion 41 through the opening K1 formed in the space portion 411, flows out through the opening K2 formed in the second protrusion 423, and the opening K2 and the opening K3 communicate with each other because the second protrusion 423 is fitted in the second recess 63. The gas flowing out of the opening K2 enters the flow path inside the window portion 6 through the opening K3. Then, the fluid flows out of the opening K4, and the opening K4 and the opening K5 communicate with each other because the first projecting portion 422 is fitted in the first recessed portion 62. The gas flowing out of the opening K4 enters the gas flow path of the main body 41 through the opening K5, and further flows out of the opening K6 to the gas outlet 3.

When a gas amount monitoring means described later is attached to the gas collection unit 1 from the side of the gas outlet portion 3, the gas flows through the gas collection unit 1 and then enters the gas amount monitoring means, and at this time, the amount of the gas flowing out of the gas outlet portion 3 is monitored by the gas amount monitoring means. In the case where a display portion of a gas amount monitoring means described later is provided in the gas collection unit 1, the gas flows through the gas amount monitoring means (display portion) while the gas flows through the gas collection unit 1, and at this time, the amount of the gas entering the gas collection unit 1 from the gas inlet portion 2 is monitored by the gas amount monitoring means.

Although the gas collecting unit 1 of the present invention has been described above, it goes without saying that various modifications are possible within the spirit of the present invention.

For example, it is described that the window portion 6 is detachably attached to the main body portion 41 so as to sandwich the test membrane 5, thereby enabling replacement of the test membrane 5. However, the present invention is not limited to this, and the test membrane 5 may be replaced by any structure as long as the gas can pass through the detection unit 4 and the substance in the gas is collected by the test membrane 5.

In addition to the above-described structure, the test membrane 5 may be detachably attached to the detection section 4 by the following structure or the like. In one example, the detecting part 4 and the window part 6 may be formed integrally, for example, an opening into which the test film 5 is inserted may be formed in the detecting part 4 or the window part 6 (the window part 6 represents a part of the detecting part 4 at this time), and at this time, the detecting part 4 may include a frame to support the test film 5.

Alternatively, the test film 5 and the window portion 6 may be formed integrally, in which case the window portion 6 may be attached directly to the main body portion 41, and in which case the test film 5 and the window portion 6 may be replaced together when the test film 5 needs to be replaced. In this case, the test membrane 5 is disposed in the window portion 6 so as to be capable of collecting the substance in the gas and to be detected by the detection device through the window portion 6, whereby the mounting process can be simplified and the problem of poor collection due to a failure in mounting the test membrane 5 can be avoided.

For example, the entire test membrane 5 may be positioned in the main body 41 or the window portion 6, and after the window portion 6 is removed, the test membrane 5 may be exposed from the main body 41 or the window portion 6. In this case, the test membrane 5 can be replaced as well.

Various structures for detachably mounting the test membrane 5 have been described above, but it should be clear that other structures may be employed as long as the test membrane 5 can be detachably mounted.

For example, the gas flow path in the above gas collection unit 1 is formed in both the main body portion 41 and the window portion 6, but may be formed only in the main body portion 41.

For example, in the above gas collection unit 1, the convex portion is provided on the main body portion 41 and the concave portion is provided on the window portion 6, but the opposite is also possible, or the convex portion and the concave portion may not be provided.

For example, although the window portion 6 in the above gas collection unit 1 is formed of a transparent material, the window portion 6 may not have transparency, and in this case, a through hole may be provided in a portion (for example, the detection region 65) of the window portion 6 for detecting the test film 5, and a light transmitting sheet such as a glass lens or a transparent resin sheet may be provided in the through hole, whereby the window portion can be formed of a non-transparent material, which can save cost. The transparent member does not need to be replaced. The test film 5 can be detected similarly, and a transparent resin sheet is preferable from the viewpoint of cost.

For example, in the above gas collection unit 1, the window for the user to observe in the window portion 6 is formed in a flat shape, but the other side of the window portion 6 (the side of the main body portion 41 opposite to the side where the window portion 6 is mounted) may be flat symmetrically to the flat window of the window portion 6, but may also be a circular normal tube.

< gas quantity monitoring Unit >

As shown in fig. 8, the gas amount monitoring unit 10 of the present application has a gas passing region 11 and edge seal regions 12 located at both sides of the gas passing region 11. The gas passage region 11 and the edge sealing regions 12 on both sides extend in the longitudinal direction (the left-right direction in fig. 8, 9, and 10) of the gas amount monitoring unit 10, and the gas passage region 11 is located between the two edge sealing regions 12 in the short-side direction (the up-down direction in fig. 8 and 9) of the gas amount monitoring unit 10, or in the cross section of the gas amount monitoring unit 10, whereby the gas passage region 11 is open on both sides in the longitudinal direction of the gas amount monitoring unit 10, and gas can pass through the gas passage region 11.

The gas passage area 11 is provided with a display portion through which the gas passes when passing through the gas passage area 11, whereby the amount of the gas passing through can be detected by the display portion and notified to the user.

The gas amount monitoring unit 10 can be used by being attached to the gas collection unit 1, and the gas amount monitoring unit 10 can be fitted to the gas collection unit 1 from the side of the gas outlet portion 3 of the gas collection unit 1 so as to cover at least the gas collection unit 1 on the side of the gas inlet portion 2 with respect to the region C (see fig. 1), in other words, the gas amount monitoring unit 10 covers the window portion of the gas collection unit 1.

Fig. 9 and 10 show a mode in which the gas amount monitoring unit 10 is attached to the gas collection unit 1. Fig. 11 and 12 show the structure of the gas collection device as viewed from the right and left sides of the structure shown in fig. 9 and 10, respectively.

2-1.< gas passing zone >

The gas passage region 11 includes an insertion opening 110, a communication portion 111, and a monitoring portion 112 in this order in the longitudinal direction of the gas amount monitoring unit 10. The insertion opening 110 is located on one side (left side in fig. 8) of the gas amount monitoring unit 10 in the longitudinal direction, and has a shape corresponding to a part of the detection portion 4 of the gas collection unit 1 and the gas outlet portion 3, that is, a large diameter portion, a reduced diameter portion, and a small diameter portion. This allows the gas collection unit 1 to be smoothly inserted from the insertion opening 110, and the small diameter portion of the gas discharge portion 3 of the gas collection unit 1 inserted into the insertion opening 110 can enter the communication portion 111 described later. Further, since the gas flow monitor unit 10 and the gas collection unit 1 have appropriate shapes, a certain adhesion force is provided between the inserted gas collection unit 1 and the gas flow monitor unit 10, and a fixing structure between the two can be omitted.

In one example, the body of the gas monitoring unit 10 may be made of a material that is elastic or slightly elastic to facilitate a substantially gas-tight fit between the gas acquisition unit 1 and the gas monitoring unit 10.

The communicating portion 111 communicates the insertion opening 110 with a monitoring portion 112 described later, and the communicating portion 111 has the same width as the small diameter portion of the insertion opening 110 in the short side direction (the vertical direction in fig. 8 and 9) of the gas collection unit 1.

The monitoring unit 112 is located on the other side (right side in fig. 8) in the longitudinal direction of the gas amount monitoring unit 10, and the gas is smoothly discharged through the gas vent 23 by having the gas vent 23 on the other side in the longitudinal direction of the gas amount monitoring unit 10 of the monitoring unit 112. The gas passing area 11 is based on the insertion opening 110 and the gas permeable hole 23, and gas flows inside thereof.

The gas amount monitoring unit 10 is mainly formed of a transparent material such as PET, for example, and the gas amount monitoring unit 10 of the present invention can be obtained by forming a resin layer by a mold and laminating and sealing the transparent resin layer. The resin layer has two flat sides and a middle portion having a shape corresponding to the gas passage area 11, that is, a shape matching a part of the detection section 4 of the gas collection unit 1 and a half of the outline of the gas outlet section 3 on one side in the longitudinal direction of the gas amount monitoring unit 10 (the right side in fig. 9 and 10), and a gas passage, for example, having a portion (not shown) slightly recessed from both side portions, is formed in the middle portion of the resin layer on the other side in the longitudinal direction of the gas amount monitoring unit 10 (the left side in fig. 9 and 10), thereby allowing the gas to flow (see the dotted arrow in fig. 9).

One side (right side in fig. 10) in the middle portion of the resin layer in the longitudinal direction is formed in a shape (shape shown in the right side in fig. 10) that fits with a part of the detection section 4 and the gas outlet section 3, and the gas collection unit 1 can be smoothly inserted, and a portion on the other side (left side in fig. 10) in the middle portion of the resin layer forms a passage through which gas flows.

When the plurality of resin layers are bonded together, the bonded resin layers are bonded so that a portion of the detection section 4 and a portion of the gas outlet section 3 having the outline shape face each other, and the bonded resin layers have a shape (the shape shown in fig. 10) that fits the gas collection unit 1, so that the gas collection unit 1 can be smoothly inserted into the gas amount monitoring unit 10, and the edge sealing region 12 is formed by performing a sealing treatment. When another resin layer is further laminated, the resin layer is further laminated from the upper side and/or the lower side of fig. 10 so as to satisfy the shape shown in fig. 10, and the gas amount monitoring unit 10 finally laminated still has the shape shown in fig. 10. Of course, the stacked multi-layer structure may also be subjected to a post-stacking instrument sealing process.

As shown by the broken line frame on the left side in fig. 10, the display portion is provided in the passage through which the gas flows. Specifically, for example, the display portion can be fixed in a fixed region by spot welding two resin layers sandwiching the display portion at intervals along the periphery of the display portion, and the monitoring portion 112 is not detached from the display portion.

2-2.< display section >

The display unit is provided in the monitoring unit 112, and as shown in fig. 8, the display unit includes a display area 21 and a reference area 22, and the positions of the display area 21 and the reference area 22 are not limited to the positional relationship shown in fig. 8, and the positions of the two may be interchanged. The display unit may further include a divided region 20 (see fig. 9). The display region 21 is, for example, a test strip which changes color by reacting with moisture, carbon dioxide, oxygen, or the like in a gas, and contains, for example, a cobalt salt (e.g., cobalt chloride CoCl) ₂ ) When gas passes through the display area, the display area absorbs water in the gas, and cobalt chloride hexahydrate CoCl is formed after the cobalt chloride absorbs water ₂ ·6H ₂ O, pink, and the size of the display part is, for example, 0.8cm × 2cm, for monitoring the amount of gas of, for example, lL, that is, when the amount of gas blown is 1L or more, the display area changes from blue to pink. The area ratio of the reference region to the display region may be 1:1, i.e., the size of the display area, may be 0.8cm × 1cm, for example. The areas of the display unit and the display region are not limited, and can be appropriately selected according to the specific situation.

The reference area 22 is always pink for the user to refer to. When the user blows a sufficient amount of gas (a predetermined amount or more), the display area 21 is changed to the same color as the reference area, whereby the user can clearly know whether the amount of gas blown has reached the desired amount.

The divided area 20 is located between the reference area 22 and the display area 21, and the divided area 20 is different from the reference area 22 and the display area 21 in color, for example, black or other color with obvious color difference, thereby facilitating the user to compare the reference area 22 and the display area 21.

The display unit may have two display areas 21, and the reference area 22 may be located between the two display areas 21 in the flow direction of the gas flowing into the gas amount monitoring unit 10 (for example, in the direction from left to right in fig. 8). Of the two display regions 21, the display region 21 located on the upstream side in the gas flow direction first contacts the gas, for example, absorbs a large amount of moisture in the gas, and the display region 21 located on the downstream side in the gas flow direction contacts the gas, for example, absorbs less moisture than the display region 21 on the upstream side.

Therefore, the degree of color change of the display region 21 on the upstream side is larger than the degree of color change of the display region 21 on the downstream side. The areas of the upstream display region 21 and the downstream display region 21 are appropriately set so that the areas of the two satisfy: when the user observes that the display area 21 on the upstream side becomes the same color as the reference area, it indicates that the blown gas has reached a predetermined amount (minimum requirement), and the blowing can be stopped. When the user observes that the display area 21 on the downstream side becomes the same color as the reference area, indicating that the amount of gas blown by the user has reached the maximum requirement, the blowing should be stopped. Of course, the above-described exemplified area is merely an example, the display regions 21 on the upstream side and the downstream side are not limited to the above-described area definition, and as long as the two display regions 21 are arranged in the flow direction of the gas, i.e., have an upstream-downstream relationship with respect to each other, the effect of monitoring the gas to the minimum requirement and not to be greater than the maximum requirement can be achieved.

2-3.< flow of gas in gas quantity monitoring Unit >

In a state where the gas collection unit 1 is inserted into the insertion opening 110 of the gas amount monitoring unit 10, when the gas is blown from the gas inlet portion 2 of the gas collection unit 1, the gas enters the space portion 411 from the gas inlet portion 2, flows through the first flow path L1, the second flow path L2, the third flow path L3, and the fourth flow path L4, is discharged from the gas outlet portion 3, and flows through the communication portion 111 and the monitoring portion 112 via the communication portion 111, as shown in fig. 3, in the gas collection unit 1. The gas that has entered the monitoring unit 112 passes through at least one side surface of the display region 21, whereby the display region 21 changes color by being brought into contact with the gas, and the gas that has passed through the display region 21 is discharged through the gas-permeable hole 23. As shown by the broken line in fig. 9, the gas is blown from the right gas inlet 2, flows in the direction shown by the broken line to the left in fig. 9, and finally flows out from the gas amount monitoring unit 10 after passing through the display portion. Thereby, the amount of gas flowing out of the gas outlet portion 3 can be monitored.

2-4.< transparent and non-transparent regions >

In the gas amount monitoring unit 10, at least the region corresponding to the display portion of the gas passage region 11 may be a transparent region, for example, a region B in fig. 8 may be a transparent region, so that a user can clearly observe whether or not the display region is discolored to the same extent as the reference region 22.

In fig. 10, the left dotted line box schematically shows the display section (display region 21), and by setting the region corresponding to the display section as the transparent region B, it is convenient to observe the color change of the display region 21. Preferably, as shown in fig. 8, a transparent region B is formed in a part of the communication portion 111, the monitoring portion 112, and the insertion opening 110, so that the user can see the display portion even after the user has finished blowing or during the user blowing.

In the gas amount monitoring unit 10, at least a region corresponding to the window portion 6 in the gas passage region 11 is set as a covering portion, whereby it is possible to avoid the window portion 6 from being contaminated to affect the detection. Particularly, when the user blows air, the window portion 6 is easily touched by human hands, and stains may be left on the window portion 6, which makes it difficult to detect the test film 5 through the window portion 6. Therefore, the covering portion can prevent contamination of the window portion 6. Further, there is a case where the gas collection unit is sterilized by ultraviolet light, and in this case, by providing the cover portion as a non-transparent region, it is also possible to prevent substances collected by the test membrane 5 from being killed by ultraviolet light. The opaque region may be provided over the entire circumference, and the work of aligning the opaque region with the window portion 6 may be omitted.

In fig. 10, the dotted line box on the right schematically shows the window portion 6, and the window portion 6 is covered by the non-transparent region a.

As described above, the gas amount monitoring unit 10 of the present application may be formed by laminating resin layers formed of a transparent material, whereby the laminated resin layers naturally constitute a transparent region, and a user can observe the display portion. In the case where the non-transparent region is to be formed, for example, a plurality of resin layers (for example, 4 resin layers, which are sequentially named as a 1 st resin layer to a 4 th resin layer in the stacking direction) are formed, the display portion is interposed between the two intermediate resin layers (between the 2 nd resin layer and the 3 rd resin layer), and then a light shielding layer such as an aluminum foil layer (for example, between the 1 st resin layer and the 2 nd resin layer, and/or between the 3 rd resin layer and the 4 th resin layer) is provided between the intermediate resin layer and the outer resin layer, whereby the non-transparent region capable of shielding light can be formed. Of course, only the region corresponding to the display portion may be formed of a transparent resin material, and the other portion may be formed of a non-transparent material or a transparent material.

Since the non-transparent region may be formed so as to cover the window portion 6, the non-transparent region may be formed in the entire circumferential direction of the gas amount monitoring unit 10 with respect to the window portion 6, or the non-transparent region may be formed only on the side of the window portion 6, and the non-transparent region may not be formed, for example, on the back surface side of the window portion 6, in which case, two resin layers may be laminated only on the side where the non-transparent region is formed, and the light shielding layer may be provided in the resin layers, and only one resin layer may be laminated on the other side, in which case, the gas amount monitoring unit 10 may include three resin layers (named as 1 st resin layer to 3 rd resin layer in order in the laminating direction), the light shielding layer may be provided between the 1 st resin layer and the 2 nd resin layer, and the display portion may be interposed between the 2 nd resin layer and the 3 rd resin layer, and, in this case, the display portion may be fixed between the 2 nd resin layer and the 3 rd resin layer by spot welding around the periphery of the display portion at an interval.

Thus, the gas amount monitoring unit 10 can be formed by laminating resin layers, and by forming the resin layers in the same shape from transparent materials, productivity can be improved, and cost can be saved.

In the case where both the transparent regions are formed of a transparent material, the transparent regions are formed by forming three or more resin layers with a display portion interposed between two of the resin layers, and the non-transparent regions are formed by providing a light-shielding layer between the two resin layers in a region other than the region where the display portion is interposed. Specifically, in the case of three resin layers (named as the 1 st resin layer to the 3 rd resin layer in order in the stacking direction), for example, a display portion is interposed between the 2 nd resin layer and the 3 rd resin layer, and a light-shielding layer is provided between the two resin layers (for example, between the 1 st resin layer and the 2 nd resin layer) in a region other than the region where the display portion is interposed. In this structure, since the resin layer is formed of a transparent material and the transparent material forms the transparent region, at least the display portion can be observed through the 3 rd resin layer, and the light shielding layer between the 1 st resin layer and the 2 nd resin layer forms the non-transparent region. In this case, the display portion may be observed through the 1 st resin layer and the 2 nd resin layer in addition to the 3 rd resin layer, and the display region may be similarly configured.

Although the formation of the non-transparent region a has been described above, the resin layer formed may be made to be in a non-transparent form by adding another material (i.e., a non-transparent material) to the transparent material, and in this case, a transparent resin layer and a non-transparent resin layer may be stacked to form a two-layer structure with the display unit interposed therebetween.

The structure of the non-transparent region a and the transparent region B described above will be described below with reference to fig. 13 to 15, and fig. 13 to 15 schematically show an example in which the non-transparent region a and the transparent region B of the present invention are formed by laminating resin layers. The resin layers F1 to F4 in fig. 13 to 15 are merely exemplary, and are shown in a planar shape for convenience of illustration, and do not represent actual shapes.

In fig. 13, a resin layer F1 is formed of a non-transparent material, a resin layer F2 is formed of a transparent material, and the resin layers F1 and F2 are stacked to form a two-layer structure with the display portion interposed therebetween. Also schematically shown in fig. 13 is the relationship of the two resin layers F1, F2 to the test membrane 5 and the window portion 6 after the gas amount monitoring unit 10 is mounted to the gas collecting unit 1. The non-transparent region a is formed by the resin layer F1, and the window portion 6 located above the test film 5 can be shielded, and the transparent region B is formed by the resin layer F2, and the display region 21 can be observed.

In fig. 14, the laminated resin layers F1 to F3 form a three-layer structure, the resin layers F1 to F3 are each formed of a transparent material, the display portion is interposed between the adjacent resin layers F2 and F3, at least the resin layers F1 and F2 constitute the transparent region B, and the display region 21 can be seen from the resin layer F3 side, that is, the resin layer F3 also constitutes the transparent region B. The non-transparent region a is configured by providing a light-shielding layer S between the two resin layers F1 and F2 in a region other than the region where the display unit (display region 21) is interposed.

In fig. 15, the laminated resin layers F1 to F4 form a four-layer structure, the resin layers F1 to F4 are each formed of a transparent material, the display portion is interposed between the adjacent resin layers F2 and F3, at least the resin layers F1 and F2 constitute a transparent region B, and the display region 21 can be seen from the resin layers F3 and F4 side, that is, the resin layers F3 and F4 also constitute the transparent region B. The non-transparent region a is configured by providing a light-shielding layer S between the two resin layers F1 and F2 and between the two resin layers F3 and F4 in a region other than the region where the display section (display region 21) is interposed. The non-transparent region a in fig. 15 can have a shape continuous in the circumferential direction, and therefore, the non-transparent region a does not need to be specially aligned with the window portion 6, and the window portion 6 can be reliably shielded by the non-transparent region a. The "region other than the display unit (display region 21)" described above means a region other than the region where the display unit is interposed among the regions between the three or more resin layers, and does not include other portions in the region where the display unit is interposed.

As shown in fig. 16, the two-layer structure is referred to as a two-layer structure regardless of whether the edge seal regions 12 are on both sides (the two resin layers are in contact with each other) or the gas passage region 11 is in the middle (the two resin layers are separated from each other), and the same applies to a three-layer structure and a four-layer structure. The "laminated resin layer" mentioned in the present application is not limited to the "resin layers laminated in contact with each other", and a structure in which both side portions are in contact and the middle portion is separated as shown in fig. 16 is also included in the "lamination" mentioned in the present application, that is, the lamination in a broad sense.

In addition, the light-shielding layer S in fig. 14 may be extended to a position where it shields the display portion, and one of the two light-shielding layers S in fig. 15 may be extended to a position where it shields the display portion, as long as it is ensured that the other light-shielding layer S does not shield the display portion, and the display portion can still be observed by the user.

Although the gas amount monitoring unit 10 of the present invention has been described above, it goes without saying that various modifications are possible within the spirit of the present invention.

For example, although the gas amount monitoring unit 10 is described as being formed separately from the gas collection unit 1, the gas amount monitoring unit 10 may be formed integrally with the gas collection unit 1.

Although the configuration in which the display portion is located inside the gas detection unit 10 is described above, the above configuration of the gas amount monitoring unit 10 may be omitted and the display portion may be provided in the gas collection unit 1. For example, the display unit may be provided in the space portion 411 or the gas inlet portion 2 or the gas outlet portion 3 of the gas collection unit 1, in which case the space of the space portion 411 or the gas inlet portion 2 or the gas outlet portion 3 is appropriately reduced, and a gas flow path through which gas passes through the display unit is provided in the space portion 411 or the gas inlet portion 2 or the gas outlet portion 3. Alternatively, the display unit may be provided in any one of the first flow path L1, the second flow path L2, the third flow path L3, and the fourth flow path L4 of the gas collection unit 1, and in this case, the shape of the corresponding flow path may be appropriately changed as necessary to obtain a space in which the display unit is provided, and the gas may pass through the display unit while the gas flows, whereby the gas passes through the display unit in the process of passing through the corresponding gas flow path. When the display unit is provided in any one of the space 411, the gas inlet unit 2, the first flow path L1, the second flow path L2, and the third flow path L3, the gas introduced into the gas collection unit 1 flows through a path that passes through the gas amount monitoring unit first and then passes through the test membrane, and when the display unit is provided in the fourth flow path L4 or the gas outlet unit 3, the gas introduced into the gas collection unit 1 flows through a path that passes through the test membrane first and then passes through the gas amount monitoring unit. Thereby, the amount of gas entering the gas collection unit 1 can be detected.

In the case where the display portion is provided in the gas collection unit 1, a transparent region is provided at a corresponding portion of the housing of the gas collection unit 1 so that the display portion can be observed through the transparent region. Here, the corresponding portion may be a portion corresponding to the display portion in the vertical direction, or may be located closer to the air intake portion than the display portion, and in this case, the user can view the display portion while blowing. Of course, the transparent region may be provided at a position directly above or obliquely above the display unit, so that the user can clearly see the display unit both during and after the air blowing. In this structure, optionally, an airflow intensity detection device may be connected to the air outlet portion to detect the intensity of the blown airflow. The airflow intensity detecting device may be a sensor, a buzzer (e.g., a whistle), a fan, etc.

Further, the display portion may be provided near the convex portions (the first convex portion 422 and the second convex portion 423) in the gas collection unit 1, and in this case, the notch portion 42 may be provided longer as necessary, leaving a sufficient space for providing the display portion, and the window portion 6 may be provided longer accordingly. In this structure, the gas passes through the display portion before passing through the test membrane 5, and thereby, the display region of the display portion is brought into contact with the gas, reacts, and discolors, thereby monitoring whether the amount of the gas satisfies the requirement. In this configuration, the display portion can be viewed through the window portion 6 without providing a transparent region, or at least a partial region of the window portion 6 forms a transparent region (corresponding to) and, in this case, the display region 21 is located in a region that can be viewed through the window portion 6.

For the gas collecting device of the present application, it is also possible to make an arrangement,

(1) Additionally set up the lid, this lid is used for sealing the portion of giving vent to anger and the portion of admitting air after gaseous collection unit has collected, prevents that extra impurity from getting into, influences the later stage and detects. Furthermore, the cover part can be connected with the air inlet part and the air outlet part, so that the cover part is prevented from being lost when not closed. The gas collection unit may be provided with a recess into which the cap is fitted, and the cap may be fitted into the recess when not in use and removed when necessary.

In the case where the gas inlet portion and the gas outlet portion are closed by the lid portion, the gas can be reliably stored in the gas collection unit for a long period of time, and in this case, the gas collection unit can be stored, transported, and the like without worrying about the gas leaking from the gas collection unit, and also other impurities can be prevented from entering and affecting the collection result.

The cover portion may be provided in a structure in which the display portion is provided in the gas collection unit 1, or may be provided in a gas collection device in which the gas amount monitoring unit 10 is incorporated, as long as it does not interfere with or collide with other members.

(2) In the gas amount monitoring unit 10 described in the above embodiment, the non-transparent region is provided as the covering portion. When the display portion is provided in the gas collection unit 1 without the gas amount monitoring unit 10, a cover portion may be separately provided to cover the window portion 6. The cover portion covers at least a region (for example, detection region 65) of the window portion 6 for detecting the test film 5, or a portion where the test film 5 can be detected through the window portion 6, and can be removed.

For example, the covering portion may be a black sleeve that covers the window portion while being fitted to the outside of the detection portion, and the position of the covering portion is not limited as long as the covering portion can cover the window portion 6. For example, the covering portion may be fitted over the entire circumferential range of the detection portion 4, and in this case, even if the covering portion is displaced in the circumferential direction of the detection portion 4, the window portion 6 can be reliably covered. In addition, the covering portion may be made long in the longitudinal direction of the detection portion 4, and in this case, even if the covering portion is displaced in the longitudinal direction of the detection portion 4, the window portion 6 can be reliably covered.

The structure of the cover portion has been illustrated above, but it is obvious that other structures are possible as long as the portion of the window portion 6 where the test film 5 is detected can be covered. For example, a drawer-type covering portion may be provided which has a covering sheet and guide portions for guiding the covering sheet on both sides of the covering sheet, the covering sheet may be provided so as to be slidable, and a toggle portion for toggling a finger of a user may be connected to the covering sheet, and the covering sheet may be slid by toggling the toggle portion, thereby switching between covering the window portion 6 and uncovering the window portion 6. The color of the cover may be other than black, and may be other colors as long as the cover can shield ultraviolet light.

(3) A color chart may be provided in the D region near the window portion 6 in fig. 1. When the optical detection device is used to detect the test film in the gas collection device, the colorimetric card is disposed near the window portion 6, and therefore, the colorimetric card can be detected (observed) by the optical detection device at the same time, and the test film 5 can be detected more conveniently.

(4) In the gas collection unit shown in fig. 1, a virus filter layer having a virus blocking function may be additionally provided, the virus filter layer may be a PP filter material of a polymer or lysozyme or a charged diatomite layer, the polymer may be a polypropylene melt-blown cloth, for example, and the virus filter layer may allow gas to pass through but not allow viruses to pass through, thereby blocking viruses. The virus filter layer may be provided as if the display unit is provided in the gas collection unit 1, that is, the virus filter layer may be provided in the space 411 or the gas inlet 2 or the gas outlet 3 of the gas collection unit 1, or may be provided in the middle of any one of the first flow path L1, the second flow path L2, the third flow path L3, and the fourth flow path L4 of the gas collection unit 1.

For example, the virus filter layer can be provided at a portion where the desiccant is placed in the space portion 411, or at a portion where the desiccant is placed in another member. Further, the number of virus filter layers is not limited to one, and a plurality of virus filter layers may be provided, for example, on the gas flow direction upstream side and the gas flow direction downstream side of the desiccant. It is also possible to integrate a virus filtration layer into the test membrane, for example, the virus filtration layer can serve as a substrate for the test membrane, or the virus filtration layer can be used to make a part of the test membrane.

In addition, an identification module can be arranged in the gas collection unit and used for identifying the effectiveness of the test membrane. In the event that the test film fails due to contamination or exposure or expiration date, etc., the identification module displays something other than what it would have displayed if it had not failed, such as discoloration. For example, the identification module identifies the effectiveness of the test membrane by using the substance closest to the material of the characteristic of the test membrane that is most susceptible to failure, and alerts the test membrane of failure by developing a color. The identification module and the test membrane are in the same environment, and the identification module identifies the test membrane according to the change of the surrounding environment caused by the failure of the test membrane.

The installation position of the recognition module is not particularly limited as long as it is in the same environment as the test membrane, and in the present application, the recognition module may be installed in the gas collection unit, and may be integrated with the test membrane or may be installed independently. The identification module may be disposed at a position where it can be observed through the window portion 6 or at a position where it can be observed through a transparent region provided in the housing of the gas collection unit 1, or the housing of the gas collection unit 1 may have a window for observing the identification module in addition to the window portion 6 and the transparent region provided in the housing of the gas collection unit 1.

(5) The display area displays different colors to allow the user to monitor whether or not a predetermined amount of gas has been blown, but may display other contents than colors, and may display different contents depending on the amount of gas passing through.

(6) The foregoing illustrates the following structure: the display area 21 is located in an area that can be observed through the window portion 6. In this case, the display region 21 may be provided in the vicinity of the test film 5, or the display region may be integrated with the test film, and in this case, the display region may be provided in the test film to monitor whether or not the amount of the gas has reached a predetermined amount. For example, the display region is filled with a reagent that can detect the amount of gas filled in, and for example, the reagent can detect the amounts of carbon dioxide and moisture, and estimate whether or not the amount of gas reaches a predetermined amount from the amounts of carbon dioxide and moisture. At this time, it is preferable that the region for collecting the substance in the gas in the test membrane 5 and the display region are separated by a dividing region, so that the user can clearly distinguish the region for collecting the substance in the gas from the display region, and the display region is prevented from interfering with the detection of the subsequent test membrane.

The invention also provides an application of the gas collecting device, which comprises at least one of the following applications: and performing qualitative or quantitative analysis on at least one of the content of organic matters, the content of carbon dioxide, the content of carbon elements and the content of alcohol in the gas, or identifying preset characteristics of the gas. The content of these substances can be analyzed and then further detected, by big data analysis, the correlation of some characteristics and a certain event is analyzed, then the gas is compared with the characteristics, if the characteristics are provided, the event is corresponded to. Such as drunk driving detection, etc. Of course, the purpose of the gas collecting device is not limited to the illustrated one, and other purposes based on gas analysis are also possible, and are not illustrated here.

Claims (13)

1. A gas acquisition device is characterized by comprising a gas acquisition unit (1) and a gas quantity monitoring unit (10),

the gas collection unit is provided with an air inlet part (2), an air outlet part (3) and a gas flow path communicated with the air inlet part and the air outlet part,

a test membrane (5) for collecting substances in a gas is arranged in the gas flow path,

the gas collection unit has a window portion (6) for detecting the test membrane,

the gas entering the gas collection unit from the gas inlet portion or the gas flowing out from the gas outlet portion can enter the gas amount monitoring unit, the gas amount monitoring unit monitors the amount of the gas entering the gas collection unit from the gas inlet portion or the amount of the gas flowing out from the gas outlet portion,

the gas amount monitoring unit has a display section including a display area (21),

the gas flowing into the gas amount monitoring unit passes through the display area, the display area displays different contents according to the amount of the gas passing through,

the gas amount monitoring unit has a transparent area (B) for viewing the display area.

2. The gas collection device of claim 1,

the display area displays different colors according to the amount of gas passing through,

when a predetermined amount or more of gas passes, the display area displays a predetermined color.

3. The gas collection apparatus of claim 2,

the display further comprises a reference area (22) displaying the predetermined color, or,

the display portion further includes a reference region (22) that displays the predetermined color and a divided region provided between the display region and the reference region, the divided region being in a color different from that of the display region and the reference region, or,

the display portion further includes two reference regions, the two reference regions being located between the two display regions in a flow direction of the gas flowing into the gas amount monitoring unit, the reference regions displaying the predetermined color.

4. The gas collection apparatus of claim 1,

the gas quantity monitoring unit is detachably mounted on the gas acquisition unit from the side of the gas outlet part of the gas acquisition unit.

5. The gas collection apparatus of claim 1,

the gas amount monitoring unit has a non-transparent area (A),

the non-transparent region shields the window portion of the gas collection unit in a state where the gas amount monitoring unit is mounted to the gas collection unit.

6. The gas collection apparatus of claim 5,

the gas amount monitoring unit includes two resin layers stacked,

one of the resin layers is formed of a transparent material to constitute the transparent region, and the other of the resin layers is formed of a non-transparent material to constitute the non-transparent region,

the display portion is sandwiched between the two resin layers.

7. The gas collection apparatus of claim 5,

the gas amount monitoring unit includes:

three or more resin layers each formed of a transparent material, wherein the display portion is interposed between any two adjacent resin layers,

and a light-shielding layer provided between any two adjacent resin layers in a region other than the display portion to constitute the non-transparent region.

8. The gas collection apparatus of claim 4,

the gas amount monitoring unit is provided with a gas passing area (11) and edge sealing areas (12) positioned at two sides of the gas passing area,

the gas passing area and the edge sealing areas on the two sides extend along the length direction of the gas quantity monitoring unit, and the gas passing area is located between the two edge sealing areas in the cross section of the gas quantity monitoring unit.

9. The gas collection device according to any one of claims 1 to 8,

the display part is arranged in the middle of the gas flow path or in the gas inlet part or the gas outlet part, so that the gas flowing into the gas collecting unit passes through the display area,

wherein:

the transparent region is provided in a housing of the gas collection unit so that the display portion can be observed through the transparent region.

10. The gas collection device according to any one of claims 1 to 8,

the display region is located in a region that can be viewed through the window portion, at least a partial region of the window portion forming the transparent region.

11. The gas collecting device as recited in any one of claims 1 to 8,

further comprising: and a virus filtration layer provided in the middle of the gas flow path or in the gas inlet portion or in the gas outlet portion, the virus filtration layer allowing passage of gas but not allowing passage of viruses.

12. The gas collecting device as recited in any one of claims 1 to 8,

further comprising: an identification module disposed in the gas collection unit, the identification module displaying a different content when the test membrane fails than when the test membrane does not fail, wherein,

the identification module is located in a position that is viewable through the window portion, or,

the identification module is located in a position that is viewable through the transparent region in which the housing of the gas collection unit is disposed, or,

the housing of the gas collection unit has a window for viewing the identification module.

13. Use of a gas collection device according to any of claims 1 to 12,

comprising at least one of the following uses: and performing qualitative or quantitative analysis on at least one of the content of organic matters, the content of carbon dioxide, the content of carbon elements and the content of alcohol in the gas, or identifying preset characteristics of the gas.

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