Discrimination device

Abstract

The utility model provides a discriminating device. The discriminating device comprises a discriminating chamber body, a gas guide pipe and a main gas inlet pipe. The discriminating chamber body comprises an opening and an inner cavity, the opening is communicated with the inner cavity, and the mouth and the nose of a discriminating person can enter the inner cavity through the opening. The gas guide pipe is located in the inner cavity and comprises a first gas hole and a second gas hole, the first gas hole is used for providing gas to be discriminated to the nose of a discriminating person, and the second gas hole is used for being meshed by the discriminating person. The main gas inlet pipe is communicated with the gas guide pipe and used for introducing gas to be discriminated into the gas guide pipe. The sniffing device solves the problem that an existing sniffing device cannot provide gas to the nose and the oral cavity of a sniffing person at the same time.

Description

Technical Field

[0001] This application relates to the field of analysis and detection of odor compounds, and particularly to a discrimination device. Background Art

[0002] Gas chromatography-olfactometry is a technique that combines the separation effect of gas chromatography on volatile components with human olfactory perception. It uses a person's nose to directly smell each component of the gas separated by the gas chromatography column to detect the odor composition in the sample, and it has been widely used in fields such as food flavor, fragrance, and environmental detection.

[0003] When performing odor analysis, the chromatographic column of the gas chromatography-olfactometer separates the components in the analyzed gas, and the odor components flow out from the end of the chromatographic column in sequence, and the discriminator smells the odor of the flowing gas. Chinese Patent CN217007145U discloses an artificial olfactory device for flavor components synchronized with instrumental analysis, which includes an olfactory hood with a conical open mouth, and an olfactory discrimination chamber is formed inside the olfactory hood. The olfactory hood includes an inlet for the gas to be analyzed. During operation, the nose of the discriminator is close to the olfactory hood, and the gas to be analyzed introduced from the inlet for the gas to be analyzed is inhaled by the discriminator through the nose for smelling.

[0004] However, for some special situations, for example, during the process of a smoker sucking on a cigarette, the cigarette smoke is inhaled into the mouth and then exhaled through the nose, and the odor components therein, through the combined action of the mouth and nose, give the smoker the sensory experience of aroma and taste. When the existing olfactory device performs gas chromatography-olfactory discrimination analysis on a cigarette smoke sample, the odor components of the cigarette smoke sample can only be smelled through the nose, which is somewhat different from the sensory effects of aroma and taste produced by the odor components of the smoke entering the mouth during the actual smoking process. Therefore, the existing olfactory device has the problem that it cannot simultaneously provide gas to the nose and mouth of the discriminator. Summary of the Utility Model

[0005] The purpose of this application is to provide a discrimination device that can simultaneously provide the gas to be discriminated to the nose and mouth of the analyst, including a discrimination chamber body, a gas conduit, and a main intake pipe. The discrimination chamber body includes an open mouth and an inner cavity, the open mouth and the inner cavity are connected, and the mouth and nose of the discriminator can enter the inner cavity through the open mouth. The gas conduit is located in the inner cavity, the gas conduit includes a first air hole and a second air hole, the first air hole is used to provide the gas to be discriminated to the nose of the discriminator, and the second air hole is for the discriminator to bite. The main intake pipe is connected to the gas conduit, and the main intake pipe is used to introduce the gas to be discriminated into the gas conduit.

[0006] Optionally, the discrimination device further includes an auxiliary intake pipe, which communicates with the inner cavity. The auxiliary intake pipe is arranged between the main intake pipe and the inner cavity, and is used to introduce auxiliary gas into the inner cavity.

[0007] Optionally, the first air hole is arranged near one end of the air duct where the second air hole is provided.

[0008] Optionally, the first air hole and the outlet of the auxiliary intake pipe are located on the same side of the air duct.

[0009] Optionally, the discrimination chamber body is conical, the open end is located at the bottom end of the discrimination chamber body, and the auxiliary intake pipe is connected to the top of the discrimination chamber body.

[0010] Optionally, the connection between the end of the air duct away from the first air hole and the main intake pipe is located at the top end of the discrimination chamber body.

[0011] Optionally, the second air hole is located at the end of the air duct, and the second air hole is lower than the open end.

[0012] Optionally, the discrimination chamber body is conical, and the air duct inclines towards the edge of the open end.

[0013] Optionally, the included angle between the central axis of the auxiliary intake pipe and the central axis of the air duct is an acute angle.

[0014] Optionally, the first air hole faces away from the inclination direction of the air duct.

[0015] The beneficial effects of this application are as follows: By providing a discrimination chamber body, an air duct and a main intake pipe. The discrimination chamber body includes an open end and an inner cavity, and the open end communicates with the inner cavity. The mouth and nose of the discriminator can enter the inner cavity through the open end. The air duct is located in the inner cavity, and the air duct includes a first air hole and a second air hole. The first air hole is used to provide the gas to be discriminated to the nose of the discriminator, and the second air hole is used for the discriminator to bite. The main intake pipe communicates with the air duct, and the main intake pipe is used to introduce the gas to be discriminated into the air duct.

[0016] Since there is an air duct arranged in the inner cavity and the first air hole can provide the gas to be discriminated to the nose of the discriminator, the nose of the discriminator can smell the gas to be discriminated. The discriminator can bite the second air hole through the open end, so the oral cavity of the discriminator can sense the gas to be discriminated sent out from the second air hole of the air duct. That is, the discrimination device can simultaneously provide the gas to be discriminated to the oral cavity and the nose of the discriminator, so that the discriminator can simultaneously sense the smell through the oral cavity and the nose.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and be able to implement it according to the content of the specification, the following takes the preferred embodiments of this application and combines with the drawings to describe this application in detail. Brief Description of the Drawings

[0018] Figure 1 is a perspective view of the discrimination device in an embodiment of this application;

[0019] Figure 2 is an application schematic diagram of the discrimination device in an embodiment of this application.

[0020] Among them, reference numerals:

[0021] 10 Discrimination chamber body

[0022] 100 Open end

[0023] 101 Inner cavity

[0024] 11 Air duct

[0025] 110 First air hole

[0026] 111 Second air hole

[0027] 12 Main intake pipe

[0028] 13 Auxiliary intake pipe Detailed Embodiment

[0029] The following specific embodiments illustrate the implementation manners of this application. Those skilled in this technology can easily understand other advantages and effects of this application from the content disclosed in this specification.

[0030] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine with the embodiments to describe this application in detail. In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of this application.

[0031] It should be noted that in the description and claims of this application and the above-mentioned drawings, terms such as "first" and "second" are used to distinguish similar objects and do not necessarily describe a specific order or sequence. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily limit to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0032] It should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] Please also refer to Figure 1 and Figure 2 In this embodiment, a discrimination device is provided, which includes a discrimination chamber body 10, a gas conduit 11, and a main intake pipe 12. The discrimination chamber body 10 includes an opening 100 and an inner cavity 101, and the opening 100 and the inner cavity 101 are in communication. The mouth and nose of the discriminator can enter the inner cavity 101 through the opening 100. The gas conduit 11 is located in the inner cavity 101. The gas conduit 11 includes a first air hole 110 and a second air hole 111. The first air hole 110 is used to provide the gas to be discriminated to the nose of the discriminator, and the second air hole 111 is used for the discriminator to bite. The main intake pipe 12 is in communication with the gas conduit 11, and the main intake pipe 12 is used to introduce the gas to be discriminated into the gas conduit 11.

[0034] Please also refer to Figure 1 and Figure 2 Since the gas conduit 11 is provided in the inner cavity 101 and the first air hole 110 can provide the gas to be discriminated to the nose of the discriminator, the nose of the discriminator can smell the gas to be discriminated. The discriminator can bite the second air hole 111 through the opening 100, so that the oral cavity of the discriminator can sense the gas to be discriminated sent out from the second air hole 111 of the gas conduit 11. That is, the discrimination device can simultaneously provide the gas to be discriminated into the oral cavity and the nose of the discriminator, so that the discriminator can simultaneously sense the smell through the oral cavity and the nose.

[0035] Such as Figure 1As shown, the diameter of the open end 100 is larger than the area of the nose and mouth of the discriminator. For example, the diameter of the open end 100 can be 100 mm. The discriminator chamber body 10 can cover the nose and mouth of the discriminator. The air inlet of the main air inlet pipe 12 can be connected to the gas chromatography column, and the gas flowing out of the gas chromatography column enters the inner cavity 101 of the discriminator chamber body 10 through the main air inlet pipe 12. The open end 100 can be circular. The inner cavity 101 can be conical. The air outlet of the main air inlet pipe 12 can be connected to the air duct 11. The main air inlet pipe 12 and the air duct 11 can be connected by bonding or integral molding.

[0036] As Figure 2 As shown, the materials of the discriminator chamber body 10, the air duct 11 and the main air inlet pipe 12 can be glass or fused quartz glass. The length of the air duct 11 can be greater than or equal to 50 mm and less than or equal to 100 mm. The nose of the discriminator can extend into the inner cavity 101 and be located above the air duct 11.

[0037] As Figure 1 As shown, optionally, the discriminator device further includes an auxiliary air inlet pipe 13. The auxiliary air inlet pipe 13 is communicated with the inner cavity 101. The auxiliary air inlet pipe 13 is arranged separately from the main air inlet pipe 12. The auxiliary air inlet pipe 13 is used for introducing auxiliary gas into the inner cavity 101. The material of the auxiliary air inlet pipe 13 can be glass or fused quartz glass. The auxiliary air inlet pipe 13 and the discriminator chamber body 10 can be connected by gluing or integral molding. The auxiliary air inlet pipe 13 can be connected to the outside nitrogen outlet containing water vapor through a rubber tube. The nitrogen containing water vapor (i.e., the auxiliary gas) can enter the inner cavity 101 of the discriminator chamber body 10 through the auxiliary air inlet pipe 13.

[0038] As Figure 1 As shown, optionally, the first air hole 110 is arranged at one end of the air duct 11 close to the second air hole 111. With such an arrangement, the first air hole 110 can be as close as possible to the nose of the discriminator to directly supply the gas to be discriminated to the nasal cavity of the discriminator. The second air hole 111 can be located at the top of the air duct 11. When the nose and mouth of the discriminator need to inhale the gas to be discriminated simultaneously, the second air hole 111 and the first air hole 110 should maintain an appropriate distance to prevent the mouth of the discriminator from covering the first air hole 110.

[0039] As Figure 1As shown, optionally, the first air hole 110 and the outlet of the auxiliary air intake pipe 13 are located on the same side of the air conduit 11. The first air hole 110 can be located on the right side wall of the air conduit 11, and the outlet of the auxiliary air intake pipe 13 can be located on the right side of the air conduit 11 and spaced apart from the air conduit 11. With this arrangement, the gas to be analyzed provided by the first air hole 110 can flow to the left, while the auxiliary gas provided by the outlet of the auxiliary air intake pipe 13 flows to the upper right. The gases provided by both can be quickly and evenly mixed and diffused to various locations in the inner cavity 101. The outlet of the auxiliary air intake pipe 13 is the opening on the auxiliary air intake pipe 13 that faces the inner cavity 101.

[0040] like Figure 1 As shown, optionally, the analysis chamber body 10 is conical in shape, with the opening 100 located at the bottom end of the analysis chamber body 10, and the auxiliary air intake pipe 13 connected to the top of the analysis chamber body 10. The auxiliary air intake pipe 13 is connected to the top side wall of the analysis chamber body 10. The auxiliary air intake pipe 13 and the analysis chamber body 10 can be connected by gluing or integral molding. The auxiliary air intake pipe 13 is connected to the top of the analysis chamber body 10, that is, the auxiliary air intake pipe 13 is away from the opening 100, which can prevent the auxiliary gas introduced into the auxiliary air intake pipe 13 from flowing to the outside through the opening 100.

[0041] like Figure 1 As shown, optionally, the connection between the end of the air conduit 11 away from the first air hole 110 and the main air inlet pipe 12 is located at the top of the analysis chamber body 10. The end of the air conduit 11 away from the first air hole 110 can be the bottom end of the air conduit 11. The end of the air conduit 11 away from the first air hole 110 can be connected to the top of the analysis chamber body 10. The end of the main air inlet pipe 12 can be connected to the top of the analysis chamber body 10. The end of the air conduit 11 away from the first air hole 110 can be connected to the top of the analysis chamber body 10 by gluing or integral molding.

[0042] like Figure 1 As shown, the connection between the end of the air duct 11 away from the first air hole 110 and the main air inlet pipe 12 is located at the top of the analysis chamber body 10, and the outlets of the first air hole 110 and the auxiliary air inlet pipe 13 can be staggered with each other, thereby providing the gas to be analyzed and the auxiliary gas at different positions of the inner cavity 101, so that the gas to be analyzed and the auxiliary gas can be quickly mixed and diffused to fill the inner cavity 101.

[0043] like Figure 1As shown, optionally, the second air hole 111 is located at the end of the air duct 11, and the second air hole 111 is lower than the opening 100. The second air hole 111 being lower than the opening 100 means that the highest point on the second air hole 111 is lower than the plane of the opening 100. With such a setting, it can be ensured that when the nose and mouth of the discriminator extend into the opening 100, the mouth of the discriminator can be aligned with the second air hole 111, avoiding the situation where when the air duct 11 is too long, the second air hole 111 abuts against the oral cavity of the discriminator, preventing the nose and mouth of the discriminator from entering the inner cavity 101 simultaneously.

[0044] As Figure 1 shown, optionally, the discriminator body 10 is conical, and the air duct 11 inclines towards the edge of the opening 100. The opening 100 can be circular. For example, the air duct 11 can incline to the left. The air duct 11 inclining towards the edge of the opening 100 can facilitate the formation of a space for accommodating the nose of the discriminator on one side of the air duct 11 (for example, on the right side of the air duct 11).

[0045] As Figure 1 shown, optionally, the included angle between the central axis of the auxiliary air inlet pipe 13 and the central axis of the air duct 11 is an acute angle. With such a setting, the outlet of the auxiliary air inlet pipe 13 can be oriented towards the opening 100 as much as possible, and the auxiliary gas flowing out from the outlet of the auxiliary air inlet pipe 13 can flow towards the nose and mouth of the discriminator, thus reaching the nose and mouth of the discriminator more quickly. The included angle between the central axis of the auxiliary air inlet pipe 13 and the central axis of the air duct 11 can be greater than or equal to 30° and less than or equal to 60°.

[0046] As Figure 1 shown, optionally, the first air hole 110 faces away from the inclination direction of the air duct 11. The first air hole 110 can face the nose of the discriminator in the upper right direction, and the air duct 11 can incline to the left. With such a setting, when the discriminator sniffs the gas to be discriminated, the first air hole 110 can face the nose of the discriminator, just providing the gas to be discriminated for the nose of the discriminator.

[0047] The discriminator provided in the embodiments of the present application has been introduced in detail above. For those of ordinary skill in the art, there will be changes in the specific implementation manners and application scopes according to the idea of the embodiments of the present application. In summary, the content of this specification should not be construed as a limitation to the present application. All equivalent modifications or changes made according to the spirit and technical idea of the present application should still be covered by the claims of the present application.

Claims

1. A discrimination device, characterized in that, Comprising: A discrimination chamber body, which includes an open end and an inner cavity, the open end and the inner cavity being in communication, and the mouth and nose of the discriminator can enter the inner cavity through the open end; An air duct, which is located in the inner cavity, the air duct includes a first air hole and a second air hole, the first air hole is used to supply the gas to be discriminated to the nose of the discriminator, and the second air hole is used for the discriminator to bite; and A main intake pipe, which is in communication with the air duct, and the main intake pipe is used to introduce the gas to be discriminated into the air duct.

2. The discrimination device according to claim 1, characterized in that It further includes an auxiliary intake pipe, the auxiliary intake pipe is in communication with the inner cavity, the auxiliary intake pipe is arranged separately from the main intake pipe, and the auxiliary intake pipe is used to introduce auxiliary gas into the inner cavity.

3. The discrimination device according to claim 2, characterized in that The first air hole is arranged at one end of the air duct near the second air hole.

4. The discrimination device according to claim 2, characterized in that, The first air hole and the outlet of the auxiliary intake pipe are located on the same side of the air duct.

5. The discrimination device according to claim 2, characterized in that, The discrimination chamber body is conical, the open end is located at the bottom end of the discrimination chamber body, and the auxiliary intake pipe is connected to the top of the discrimination chamber body.

6. The discrimination device according to claim 5, characterized in that The connection between the end of the air duct far from the first air hole and the main intake pipe is located at the top end of the discrimination chamber body.

7. The discrimination device according to claim 1, wherein The second air hole is located at the end of the air duct, and the second air hole is lower than the open end.

8. The discrimination device according to claim 2, wherein The discrimination chamber body is conical, and the air duct is inclined towards the edge of the open end.

9. The discrimination device according to claim 8, characterized in that, The included angle between the central axis of the auxiliary intake pipe and the central axis of the air duct is an acute angle.

10. The discrimination device according to claim 8, characterized in that The first air hole faces away from the inclined direction of the air duct.

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