CN214201360U

CN214201360U - Mixed sample feeding device of electronic nose and electronic nose

Info

Publication number: CN214201360U
Application number: CN202022736501.XU
Authority: CN
Inventors: 周晨晨; 谭瑞楠; 张往祥
Original assignee: Nanjing Forestry University
Current assignee: Nanjing Forestry University
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-09-14
Anticipated expiration: 2030-11-23

Abstract

The utility model discloses a mixed sample sampling device of electron nose belongs to the electron nose field. Mainly comprises a bottle body, a bottle bottom and a bottle cap; wherein the bottle body is a cylindrical structure with an upper opening and a lower opening, and the bottom of the bottle body is provided with an internal thread; the upper part of the bottle bottom is provided with external threads, and the bottle body is connected with the bottle bottom through threads; the middle of the bottle cap is provided with a rubber plate. The bottle bottom is internally provided with a separation glass sheet which is integrated with the bottle bottom into a whole structure and can be divided into 4, 6 or 8 equal parts; the bottle cap is divided into a butt joint part, an arc part and an opening part; the opening part is provided with a rubber plate, and the butt joint part is connected with the bottle body. The utility model discloses can gather the volatile gas of one kind or multiple liquid sample simultaneously, separate the glass piece and separate different liquid samples, prevent that liquid from mixing to influence volatilizing of each composition, bottle lid open-ended rubber slab can effectively block gaseous scattering and disappearing, and each part is convenient for wash to used repeatedly does not influence next experiment.

Description

Mixed sample feeding device of electronic nose and electronic nose

Technical Field

The utility model belongs to the technical field of the electron nose, concretely relates to mixed sample sampling device and electron nose of electron nose.

Background

The electronic nose is an instrument which has a partially selective chemical sensor array and a proper mode recognition system, can recognize simple or complex odor, fully exerts the advantages of objectivity, good reproducibility and the like in detection, is mainly used for recognizing, analyzing and detecting some volatile components, and is widely applied to the aspects of food, medicines, tobacco, environment and medical treatment.

The existing sample injection bottle can only meet the sample injection of volatile gas of one sample, and is difficult to meet the simultaneous sample injection of mixed gas of multiple standard samples. Meanwhile, the sample feeding bottle must be held by hand when sample feeding is performed, the sample feeding bottle is prevented from moving, the offset of a sample feeding needle is prevented, the uniform sample feeding of gas is influenced, and the operation in the field or a laboratory is not convenient enough.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem: the sampling bottle has a single structure, can only sample one sample gas, cannot sample mixed gas of various standards, and is inconvenient to operate.

The technical scheme is as follows: in order to solve the technical problem, the utility model discloses a technical scheme as follows:

a mixed sample feeding device of an electronic nose comprises a bottle body, a bottle bottom and a bottle cap; wherein the bottle body is a cylindrical structure with an upper opening and a lower opening, and the bottom of the bottle body is provided with an internal thread; the upper part of the bottle bottom is provided with external threads, and the bottle body is connected with the bottle bottom through threads; the middle of the bottle cap is provided with a rubber plate.

Further, the bottle cap is flat, and the area of the rubber plate in the middle of the bottle cap is larger than 2/3 of the surface area of the bottle cap.

Furthermore, a separation glass sheet is arranged inside the bottle bottom, and the bottle bottom are of an integral structure and can be divided into 4, 6 or 8 equal parts; the bottle cap is divided into a butt joint part, an arc part and an opening part; the opening part is provided with a rubber plate, and the butt joint part is connected with the bottle body.

Further, the arc-shaped part is convex outwards, and the bottle cap is of an arched dome structure.

Furthermore, the arc-shaped part is sunken inwards, and the bottle cap is in a horn shape with a wide lower part and a narrow upper part.

Furthermore, the butt joint part of the bottle cap is provided with an external thread which is in threaded connection with the internal thread at the bottom of the bottle body.

Furthermore, the upper end of the bottle cap is provided with an external thread, the upper end of the bottle body is provided with an internal thread, and the bottle cap and the bottle body are connected through the threads.

Furthermore, the periphery of the bottle cap is provided with a groove, a sealing ring is arranged in the groove, and the height of the sealing ring is slightly larger than that of the bottle cap.

An electronic nose comprises a main body machine with a sensor array, a power supply, a sample injection needle, a sample injection device and a sample injection tube; the power supply is connected with the host machine, one end of the sample inlet pipe is connected with the host machine, the other end of the sample inlet pipe is connected with the sample inlet needle, and the sample inlet needle is inserted into the sample inlet device to collect gas.

Has the advantages that: compared with the prior art, the utility model has the advantages of it is following:

1. the separated bottle bottom can collect volatile gas of one or more liquid samples at the same time;

2. the equal parts of the bottle bottoms are arranged to ensure that the volatilization areas of various liquid samples are equal;

3. the separation glass sheet separates different liquid samples, and prevents liquid mixing from influencing volatilization of all components;

4. the horn-shaped bottle cap is beneficial to the enrichment of gas;

5. the rubber plate with the opening on the bottle cap can effectively prevent gas from losing, the sample injection needle can be inserted into rubber for multiple times, the effect of fixing the sample injection needle can be achieved, and waste of using the preservative film is avoided.

6. Each part of the sample injection bottle which can be disassembled is convenient to clean, so that the sample injection bottle can be repeatedly used without influencing the next experiment.

Drawings

FIG. 1 is a schematic view of a sample injection device according to a first embodiment;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a schematic view of the structure of the bottom of the bottle in the second embodiment;

FIG. 4 is a schematic view of a sample injection device according to the second embodiment;

FIG. 5 is a schematic view of a sample injection device according to the second embodiment;

FIG. 6 is a schematic view of a sample injection device according to a second embodiment;

FIG. 7 is a schematic view of a sample injection device according to a third embodiment;

FIG. 8 is a schematic view of a sample injection device according to the third embodiment;

fig. 9 is a schematic structural view of an electronic nose in the fourth embodiment.

Detailed Description

The present invention will be further illustrated by the following specific examples, which are carried out on the premise of the technical scheme of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.

In the first embodiment, as shown in fig. 1, a mixed sample injection device of an electronic nose is disclosed, which comprises a bottle body 1, a bottle bottom 2 and a bottle cap 3; wherein the bottle body 1 is a cylindrical structure with an upper opening and a lower opening, and the bottom of the bottle body is provided with an internal thread; the upper part of the bottle bottom 2 is provided with an external thread, and the bottle body 1 is connected with the bottle bottom 2 through the thread; the middle of the bottle cap 3 is provided with a rubber plate 4 which is convenient for the sample injection needle to be inserted for a plurality of times, prevents the gas from losing and can fix the sample injection needle.

The fixing manner of the bottle cap 3 and the bottle body 1 includes but is not limited to: 1. the bottle cap 3 is provided with an external thread, the upper end of the bottle body 1 is provided with an internal thread, and the bottle cap and the internal thread are connected through the thread.

2. As shown in fig. 2, a groove is formed in the periphery of the bottle cap 3, a sealing ring 31 is arranged in the groove, the height of the sealing ring 31 is slightly larger than that of the bottle cap 3, the bottle cap 3 is directly embedded into the bottle body 1, and the sealing ring 31 plays a role in sealing, so that gas emission is effectively prevented.

The first embodiment is mainly used for sampling a single sample, the bottle cap 3 is in a common flat plate shape, the area of the rubber plate 4 in the middle of the bottle cap is larger than 2/3 of the surface area of the bottle cap 3, and the wide area is more convenient for inserting a sample injection needle.

In the second embodiment, as shown in fig. 3 and 4, the second embodiment is used for the unified sampling work of multiple samples, and discloses a mixed sample injection device of an electronic nose, which comprises a bottle body 1, a bottle bottom 2 and a bottle cap 3; the structure and the embodiment one of body 1 are the same, and the inside of bottle end 2 is equipped with

separates glass piece

5, and 2 structures as an organic whole at the bottom of with the bottle can divide into 4 or 6 or 8 equal divisions with bottle end 2, can separate every sample and place at the bottom of the bottle 2, satisfy the demand that multiple standard substance mist advances kind and guaranteed that the volatile area of each sample equals. The bottle bottoms 2 of different equal parts are taken as the standby bottle bottoms 2 and taken according to the experiment requirements.

The shape of the bottle cap 3 of the present embodiment is divided into two types, 1, as shown in fig. 4, the whole shape of the bottle cap 3 is divided into a butt joint part 32, an arc part 33 and an opening part 34, wherein the arc part 33 protrudes outwards, and the whole bottle cap 3 is of an arched dome structure, which is convenient for enriching the volatile gases of different samples and mixing the gases. The opening part 34 is provided with a rubber plate 4 for facilitating the insertion and fixation of the injection needle for multiple times, and the butt joint part 32 is connected with the bottle body 1 in the same way as the first embodiment.

2. As shown in fig. 5, the bottle cap 3 is divided into a butt portion 32, an arc portion 33 and an opening portion 34, wherein the arc portion 33 is recessed inward, the whole body is in a horn shape with a wide bottom and a narrow top, the upper opening portion 34 is provided with a rubber plate 4 for facilitating multiple insertion and fixation of a sample injection needle, the lower end is connected with the bottle body 1, and the connection manner is the same as that of the first embodiment.

The bottle cap 3 is in a horn shape, and is mainly used for enriching volatile gases of different samples, so that the gases can be conveniently mixed, and the bottle cap is convenient to mount with the bottle body 1.

In addition, the shape of the 2 nd bottle cap 3 and the bottle body 1 have another connection mode, as shown in fig. 6, an external thread is arranged at the butt joint part 32 of the bottle cap 3, the length of the internal thread at the connection part of the bottom of the bottle body 1 and the bottle bottom 2 is increased, and the bottle cap 3 is connected with the internal thread at the bottom of the bottle body 1. The body 1 plays a certain role in fixing.

In the third embodiment, as shown in fig. 7 and 8, the bottle cap 3 in the second embodiment has an arched dome structure or a trumpet shape, and has a large hollow volume, so that the bottle cap 3 is directly connected with the bottle bottom 2 through threads, the bottle bottom 2 is provided with external threads, and the butt-joint part 32 end of the bottle cap 3 is provided with internal threads. The mixed gas of different samples can be sampled, and the whole sample injection device only comprises the bottle bottom 2 and the bottle cap 3.

In the fourth embodiment, as shown in fig. 9, on the basis of the first and second embodiments, the utility model discloses a novel electronic nose, which comprises a main body machine 6 with a sensor array, a power supply 7, a sample injection needle 8, a sample injection device 10 and a sample injection tube 9; the power supply 7 is connected with the main body machine 6, one end of the sample injection tube 9 is connected with the main body machine 6, the other end of the sample injection tube is connected with the sample injection needle 8, the sample injection needle 8 is inserted into the sample injection device 10 to collect gas, and the sample injection device 10 is the sample injection device in the first embodiment, the second embodiment or the third embodiment.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a mixed sample sampling device of electron nose which characterized in that: comprises a bottle body, a bottle bottom and a bottle cap; wherein the bottle body is a cylindrical structure with an upper opening and a lower opening, and the bottom of the bottle body is provided with an internal thread; the upper part of the bottle bottom is provided with an external thread, and the bottle body is connected with the bottle bottom through the thread; a rubber plate is arranged in the middle of the bottle cap; the bottle bottom is internally provided with a separation glass sheet which is integrated with the bottle bottom into a whole structure and can be divided into 4, 6 or 8 equal parts; the bottle cap is divided into a butt joint part, an arc part and an opening part; the opening part is provided with a rubber plate, and the butt joint part is connected with the bottle body.

2. The mixed sample injection device of the electronic nose of claim 1, wherein: the bottle cap is flat, and the area of the rubber plate in the middle of the bottle cap is larger than 2/3 of the surface area of the bottle cap.

3. The mixed sample injection device of the electronic nose of claim 1, wherein: the arc-shaped part protrudes outwards, and the bottle cap is of an arched dome structure.

4. The mixed sample injection device of the electronic nose of claim 1, wherein: the arc-shaped part is inwards sunken, and the bottle cap is in a horn shape with a wide lower part and a narrow upper part.

5. The mixed sample injection device of the electronic nose of claim 4, wherein: the butt joint part of the bottle cap is provided with an external thread which is in threaded connection with the internal thread at the bottom of the bottle body.

6. The mixed sample injection device for the electronic nose of claim 2, 4 or 5, wherein: the bottle cap is provided with external threads, the upper end of the bottle body is provided with internal threads, and the bottle cap and the bottle body are connected through the threads.

7. The mixed sample injection device for the electronic nose of claim 2, 4 or 5, wherein: the periphery of the bottle cap is provided with a groove, a sealing ring is arranged in the groove, and the height of the sealing ring is slightly larger than that of the bottle cap.

8. An electronic nose using the sample introduction device according to any one of claims 1 to 5, wherein: comprises a main body machine with a sensor array, a power supply, a sample injection needle, a sample injection device and a sample injection pipe; the power supply is connected with the host machine, one end of the sample inlet pipe is connected with the host machine, the other end of the sample inlet pipe is connected with the sample inlet needle, and the sample inlet needle is inserted into the sample inlet device to collect gas.