CN113281112A - External automatic air inlet device and method for exhaled air analyzer - Google Patents

External automatic air inlet device and method for exhaled air analyzer Download PDF

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Publication number
CN113281112A
CN113281112A CN202110567134.1A CN202110567134A CN113281112A CN 113281112 A CN113281112 A CN 113281112A CN 202110567134 A CN202110567134 A CN 202110567134A CN 113281112 A CN113281112 A CN 113281112A
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shell
air inlet
air
analyzer
filtering
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Chinese (zh)
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陆凯伦
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Hangzhou Lifwe Health Technology Co ltd
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Hangzhou Lifwe Health Technology Co ltd
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Priority to CN202110567134.1A priority Critical patent/CN113281112A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2247—Sampling from a flowing stream of gas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/34—Purifying; Cleaning
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2247—Sampling from a flowing stream of gas
    • G01N2001/227—Sampling from a flowing stream of gas separating gas from solid, e.g. filter
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N2035/00465—Separating and mixing arrangements
    • G01N2035/00475—Filters

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The application discloses an external automatic air inlet device and method for an exhaled air analyzer, which comprises an analyzer body, a connecting block, a placing shell, an air inlet shell, a sampling mechanism, a filtering and extracting mechanism and a clamping mechanism, wherein the analyzer body is provided with a plurality of air inlet holes; the analyzer comprises an analyzer body, a connecting block, a placing shell, an air inlet shell and a gas inlet shell, wherein the right side of the analyzer body is fixedly connected with the connecting block; sampling mechanism is including sample shell, sampling tube, entering check valve, discharge pipe, discharge check valve, electric putter and piston, sample shell fixed connection is on the shell right side surface that admits air, sample shell top surface fixedly connected with electric putter, electric putter output fixedly connected with piston, sample shell bottom is through the sampling tube and the fixed intercommunication of shell that admits air, the sampling tube inner chamber is installed and is got into the check valve. The external automatic air inlet device and the external automatic air inlet method for the exhaled air analyzer are novel in design and simple in structure.

Description

External automatic air inlet device and method for exhaled air analyzer
Technical Field
The application relates to the technical field of gas analyzers, in particular to an external automatic air inlet device and method for an exhaled gas analyzer.
Background
A gas is one of four basic material states (the other three are respectively solid, liquid and plasma), the gas can be composed of a single atom (such as rare gas), a single substance molecule composed of one element (such as oxygen), a compound molecule composed of multiple elements (such as carbon dioxide) and the like, a gas mixture can comprise multiple gas materials such as air, the gas is significantly different from the liquid and the solid in that the intervals among gas particles are large, the intervals make the human eyes hardly perceive colorless gas, and the gas is fluid like the liquid: it is flowable, deformable, and unlike liquids, gases can be compressed, if not confined (container or force field), can be diffused, are not confined in volume, are not fixed, and atoms or molecules of gaseous species can move freely with respect to each other.
At present there are a lot of problems in gaseous external automatic air inlet unit's use, if contain some impurity in some gas, make impurity be stained with easily after gaseous entering air inlet unit and attach in air inlet unit, increase worker's the clearance degree of difficulty, influence the use. Therefore, an external automatic air inlet device and method for an exhaled air analyzer are provided to solve the above problems.
Disclosure of Invention
The external automatic air inlet device and the method for the exhaled air analyzer are provided in the embodiment and used for solving the problems that a lot of problems exist in the use process of the existing external automatic air inlet device for the exhaled air, if some impurities are contained in some air, the impurities are easily attached to the air inlet device after the air enters the air inlet device, the cleaning difficulty of workers is increased, and the use is affected.
According to one aspect of the application, an external automatic air inlet device and method for an exhaled air analyzer are provided, and the external automatic air inlet device comprises an analyzer main body, a connecting block, a placing shell, an air inlet shell, a sampling mechanism, a filtering and extracting mechanism and a clamping mechanism; the analyzer comprises an analyzer body, a connecting block, a placing shell, an air inlet shell and a gas inlet shell, wherein the right side of the analyzer body is fixedly connected with the connecting block;
sampling mechanism is including sample shell, sampling tube, entering check valve, discharge pipe, discharge check valve, electric putter and piston, sample shell fixed connection is on the shell right side surface that admits air, sample shell top side surface fixedly connected with electric putter, electric putter output fixedly connected with piston, sample shell bottom is through the sampling tube with admit air the fixed intercommunication of shell, the entering check valve is installed to the sampling tube inner chamber, the fixed intercommunication of sample shell bottom side has the discharge pipe, install the discharge check valve in the discharge pipe.
Further, the piston is placed in the sampling shell inner cavity, and the piston is connected with the sampling shell inner wall in a sliding mode.
Further, it includes spacing shell, go-between, solid fixed ring, filters the shell, filters the hole, filter screen, spacing ring, extraction pipe and extraction pump to filter extraction mechanism, the shell inner wall fixedly connected with spacing ring admits air, the spacing shell of block on the shell top of admitting air has been placed to the spacing ring top side, spacing shell top inner wall fixedly connected with go-between, the laminating of go-between top side has solid fixed ring, go-between inner wall block is connected with the shell of filtering with solid fixed ring fixed connection, it has seted up the filtration hole to filter the shell side surface, it has the filter screen to filter the laminating of shell inner wall, it has the exhaust tube to filter the fixed intercommunication of shell bottom side, the exhaust tube is terminal to communicate with the fixed extraction pump who fixes in the shell of admitting air.
Furthermore, the number of the filter holes is a plurality, and the filter holes are uniformly distributed on the surface of the filter shell.
Further, the section of the fixing ring is of a square frame structure, and the top side surface of the fixing ring and the top side surface of the air inlet shell are on the same horizontal plane.
Further, the top end of the air inlet casing is connected with a top cover in a clamping mode, an air inlet pipe is fixedly connected to the top side of the top cover, and the bottom end of the air inlet pipe is fixedly communicated with the inner cavity of the top cover.
Further, fixture includes first splint, second splint, connecting pipe, fixed plate, T type slide bar and centre gripping spring, first splint fixed connection is on analysis appearance main part right side surface, the second splint of slip laminating on analysis appearance main part right side have been placed to first splint top side, the centre gripping has the connecting pipe between first splint and the second splint, the connecting pipe top with admit air the fixed intercommunication of shell, second splint top side is provided with the fixed plate of fixed connection on analysis appearance main part right side, fixed plate surface sliding connection has T type slide bar, T type slide bar bottom and second splint top side fixed surface are connected.
Furthermore, the top side of the second clamping plate is provided with a clamping spring sleeved on the surface of the T-shaped sliding rod, and the top side of the second clamping plate is elastically connected with the bottom side surface of the fixing plate through the clamping spring.
Furthermore, the cross section of the T-shaped sliding rod is of a T-shaped structure, and the T-shaped sliding rod penetrates through the surface of the fixing plate in a sliding mode.
Further, a method for an external automatic air intake device for an exhaled air analyzer, the method comprising the steps of:
firstly, clamping an air inlet shell in a placing shell, clamping a top cover at the top end of the air inlet shell, starting an air suction pump when in use, further pumping external air into the air inlet shell through an air suction pipe, filtering the air entering the air inlet shell through a filter screen, intercepting impurities in the air in the filter screen, discharging the filtered air through filter holes in the surface of the filter shell, and simultaneously injecting the discharged air into an analyzer main body through a connecting pipe, so that the problem that the impurities are attached to the inner wall of the air inlet shell and are not convenient for workers to handle is solved, the effect is improved, and the labor intensity is reduced;
two, drive the removal of second splint through T type slide bar, under the effect through the centre gripping spring, guarantee the stable centre gripping of connecting pipe between first splint and the second splint, improve the stability of connecting pipe and analysis appearance main part junction, the worker can be through starting electric putter, electric putter promotes the piston and takes out the partial gas in the shell that admits air through the sampling tube, the gas of taking out passes through the discharge pipe discharge collection, make things convenient for the worker to carry out the sample detection, improve the holistic practicality of device, satisfy the user demand.
Through the above-mentioned embodiment of this application, adopted and filtered the extraction mechanism, solved impurity and be stained with the problem that attaches the worker's processing not convenient for of air inlet casing inner wall, be convenient for carry out impurity filtering with the gas that gets into, improve the effect, reduce intensity of labour, convenient to use.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic overall perspective view of an embodiment of the present application;
FIG. 2 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 3 is an enlarged view of a portion of the structure at A in FIG. 2 according to an embodiment of the present application;
FIG. 4 is a schematic side view of a connection structure between a first clamping plate and a second clamping plate according to an embodiment of the present application;
FIG. 5 is a schematic view of a bottom side surface of a housing according to an embodiment of the present application;
fig. 6 is a schematic top view of a filter housing according to an embodiment of the present disclosure.
In the figure: 1. the analyzer comprises an analyzer body, 2, a connecting block, 3, a placing shell, 4, an air inlet shell, 5, a sampling shell, 6, an electric push rod, 7, a piston, 8, a discharge pipe, 9, a discharge check valve, 10, a sampling pipe, 11, an inlet check valve, 12, a connecting pipe, 13, a top cover, 14, an exhaust pipe, 15, a limiting shell, 16, a limiting ring, 17, a filtering shell, 1701, a filtering hole, 18, a filtering net, 19, a connecting ring, 20, a fixing ring, 21, an air inlet pipe, 22, a first clamping plate, 23, a second clamping plate, 24, a fixing plate, 25, a clamping spring, 26 and a T-shaped sliding rod.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The external automatic air inlet device in this embodiment may be applicable to the external automatic air inlet device, for example, the following bionics-based gas analyzer is provided in this embodiment, and the external automatic air inlet device in this embodiment may be used to be applicable to the gas analyzer.
The utility model provides a gas analyzer based on bionics, includes gas analyzer main part, main part detection head and handheld detection head, four corners of gas analyzer main part lower surface all weld and have filled up the foot, the top fixed mounting who fills up the foot has the first in command, the positive right side fixed mounting of gas analyzer main part has the main part detection head, the second in command has all been welded to the both sides of gas analyzer main part, the right wall of gas analyzer main part is provided with the connecting seat, the inside grafting of connecting seat has the connection socket, the right side of connection socket is connected with the connecting wire, the connecting wire is kept away from the one end fixed mounting who connects the socket and is had handheld detection head, the caulking groove has been seted up in the front of gas analyzer main part, the gas analyzer main part of caulking groove both sides openly is seted up flutedly, the inside lid of caulking groove has closed the sealed cowling.
Preferably, the bottom end of the connecting seat is connected with a sealing cover, magnetic sheets are embedded at the edge of the connecting seat, and an iron ring is sleeved on the outer wall of the connecting plug.
Preferably, the two sides of the inner wall of the connecting seat are fixedly provided with inserting strips, the connecting strips are internally provided with inserting slots, the inserting strips are inserted into the inserting slots, and the inserting strips and the inserting slots form a card inserting and fixing structure.
Preferably, a sealing gasket is pasted inside the caulking groove, and the sealing gasket is made of silica gel.
Preferably, the inside of recess is provided with the fixing clip, the both sides of sealed cowling are all fixed mounting to have the stationary blade.
Preferably, moisture absorption resin pads are adhered to two sides of the top surface of the inner cavity of the sealing cover.
Preferably, the shape of the foot pad is in a concave shape, and the lower surface of the foot pad is provided with a damping cushion.
Of course, this embodiment can be used to connect gas analyzers of various configurations. Here, description is not repeated, and the external automatic air intake device according to the embodiment of the present application is described below.
Referring to fig. 1-6, an external automatic air inlet device and method for an exhaled air analyzer includes an analyzer body 1, a connecting block 2, a placing shell 3, an air inlet shell 4, a sampling mechanism, a filtering and extracting mechanism, and a clamping mechanism; the right side of the analyzer body 1 is fixedly connected with a connecting block 2, the right side of the connecting block 2 is fixedly connected with a placing shell 3, and the surface of the top side of the placing shell 3 is connected with an air inlet shell 4 in a clamping manner;
sampling mechanism is including sample shell 5, sampling tube 10, entering check valve 11, discharge pipe 8, discharge check valve 9, electric putter 6 and piston 7, sample shell 5 fixed connection is on 4 right sides surfaces of shell that admit air, sample shell 5 top side fixed surface is connected with electric putter 6, electric putter 6 output end fixed connection has piston 7, sample shell 5 bottom is through sampling tube 10 and the fixed intercommunication of shell 4 that admits air, the entering check valve 11 is installed to sampling tube 10 inner chamber, the fixed intercommunication of 5 bottom sides of sample shell has discharge pipe 8, install discharge check valve 9 in the discharge pipe 8, be convenient for take out the partial gas in the shell 4 that admits air through sampling tube 10, the gas of taking out is discharged through discharge pipe 8 and is collected, makes things convenient for the worker to carry out the sample detection, improves the holistic practicality of device.
The piston 7 is placed in the inner cavity of the sampling shell 5, and the piston 7 is connected with the inner wall of the sampling shell 5 in a sliding manner, so that the piston 7 can move conveniently; the filtering and extracting mechanism comprises a limiting shell 15, a connecting ring 19, a fixing ring 20, a filtering shell 17, a filtering hole 1701, a filtering net 18, a limiting ring 16, an extracting pipe and an extracting pump, wherein the inner wall of the air inlet shell 4 is fixedly connected with the limiting ring 16, the limiting shell 15 clamped at the top end of the air inlet shell 4 is placed at the top side of the limiting ring 16, the connecting ring 19 is fixedly connected with the inner wall of the top end of the limiting shell 15, the fixing ring 20 is attached to the top side of the connecting ring 19, the filtering shell 17 fixedly connected with the fixing ring 20 is clamped and connected to the inner wall of the connecting ring 19, the filtering hole 1701 is formed in the side surface of the filtering shell 17, the filtering net 18 is attached to the inner wall of the filtering shell 17, the extracting pipe 14 is fixedly communicated with the bottom side of the filtering shell 17, the tail end of the extracting pipe 14 is fixedly communicated with the extracting pump fixed in the, the effect is improved, the labor intensity is reduced, and the use is convenient; the number of the filter holes 1701 is a plurality, and the filter holes 1701 are uniformly distributed on the surface of the filter shell 17, so that the filter effect is improved; the section of the fixing ring 20 is of a square frame structure, and the top surface of the fixing ring 20 and the top surface of the air inlet shell 4 are on the same horizontal plane, so that the fixing ring 20 is convenient to use; the top end of the air inlet shell 4 is connected with a top cover 13 in a clamping manner, the top side of the top cover 13 is fixedly connected with an air inlet pipe 21, and the bottom end of the air inlet pipe 21 is fixedly communicated with the inner cavity of the top cover 13, so that the air inlet pipe 21 can be conveniently used; the clamping mechanism comprises a first clamping plate 22, a second clamping plate 23, a connecting pipe 12, a fixing plate 24, a T-shaped sliding rod 26 and a clamping spring 25, wherein the first clamping plate 22 is fixedly connected to the right side surface of the analyzer main body 1, the second clamping plate 23 which is attached to the right side of the analyzer main body 1 in a sliding mode is placed on the top side of the first clamping plate 22, the connecting pipe 12 is clamped between the first clamping plate 22 and the second clamping plate 23, the top end of the connecting pipe 12 is fixedly communicated with the air inlet casing 4, the fixing plate 24 which is fixedly connected to the right side of the analyzer main body 1 is arranged on the top side of the second clamping plate 23, the T-shaped sliding rod 26 is slidably connected to the surface of the fixing plate 24, the bottom end of the T-shaped sliding rod 26 is fixedly connected to the top side surface of the second clamping plate 23, the stable clamping of the connecting pipe 12 between the first clamping plate 22 and the second clamping plate 23 is guaranteed, and the stability of the connection position of the connecting pipe 12 and the analyzer main body 1 is improved, the stable use of the connecting pipe 12 is ensured, and the operation is convenient; the top side of the second clamping plate 23 is provided with a clamping spring 25 which is sleeved on the surface of the T-shaped sliding rod 26, and the top side of the second clamping plate 23 is elastically connected with the bottom surface of the fixing plate 24 through the clamping spring 25, so that the operation is convenient; the cross section of the T-shaped sliding rod 26 is of a T-shaped structure, and the T-shaped sliding rod 26 penetrates through the surface of the fixing plate 24 in a sliding mode, so that the T-shaped rod 26 can slide conveniently.
A method for an external automatic air inlet device for an exhaled breath analyzer, the method comprising the steps of:
firstly, the air inlet shell 4 is clamped in the placing shell 3, the top cover 13 is clamped at the top end of the air inlet shell 4, in use, an air pump is started, external air is pumped into the air inlet shell 4 through the air exhaust pipe 14, air entering the air inlet shell 4 is filtered through the filter screen 18, impurities in the air are intercepted in the filter screen 18, the filtered air is exhausted through the filter holes 1701 in the surface of the filter shell 17, meanwhile, exhausted air is injected into the analyzer body 1 through the connecting pipe 12, the problem that the impurities are attached to the inner wall of the air inlet shell 4 and are inconvenient to handle by workers is solved, the effect is improved, and the labor intensity is reduced;
two, drive second splint 23 through T type slide bar 26 and remove, under the effect through clamping spring 25, guarantee connecting pipe 12 between first splint 22 and the second splint 23 and stabilize the centre gripping, improve the stability of connecting pipe 12 and the analysis appearance main part 1 junction, the worker can be through starting electric putter 6, electric putter 6 promotes piston 7 and takes out the partial gas in the shell 4 that admits air through sampling tube 10, the gas of taking out passes through discharge pipe 8 and discharges the collection, make things convenient for the worker to carry out the sample detection, improve the holistic practicality of device, satisfy the user demand.
The application has the advantages that:
1. this kind of an external automatic air inlet unit and method for expired gas analysis appearance is novel in design, simple structure, is convenient for carry out impurity filtering with the gas that gets into, solves impurity and is stained with the problem that the worker of not being convenient for was handled by the attachment air inlet shell 4 inner wall, improves the effect, reduces intensity of labour, convenient to use.
2. When using, under fixture's effect through setting up, the stable centre gripping of connecting pipe 12 between the first splint 22 of guarantee and the second splint 23 improves the stability of connecting pipe 12 and the analysis appearance main part 1 junction, and the stable use of guarantee connecting pipe 12 facilitates the operation.
3. When using, under the effect of the sampling mechanism through setting up, be convenient for take out the partial gas in the shell of admitting air 4 through sampling tube 10, the gas of taking out passes through discharge pipe 8 and discharges the collection, makes things convenient for the worker to carry out the sample detection, improves the holistic practicality of device, is fit for using widely.
It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides an external automatic air inlet unit for expired gas analysis appearance which characterized in that: the analyzer comprises an analyzer body (1), a connecting block (2), a placing shell (3), an air inlet shell (4), a sampling mechanism, a filtering and extracting mechanism and a clamping mechanism; the analyzer comprises an analyzer body (1), a connecting block (2) and a placing shell (3), wherein the right side of the analyzer body (1) is fixedly connected with the connecting block (2), and the top surface of the placing shell (3) is connected with an air inlet shell (4) in a clamping manner;
sampling mechanism is including sample shell (5), sampling tube (10), entering check valve (11), discharge pipe (8), discharge check valve (9), electric putter (6) and piston (7), sample shell (5) fixed connection is on the shell (4) right side surface of admitting air, sample shell (5) top side fixed surface is connected with electric putter (6), electric putter (6) output end fixed connection has piston (7), sample shell (5) bottom is through sampling tube (10) and the fixed intercommunication of shell (4) of admitting air, entering check valve (11) are installed to sampling tube (10) inner chamber, the fixed intercommunication of sample shell (5) bottom side has discharge pipe (8), install discharge check valve (9) in discharge pipe (8).
2. The external automatic air intake device for an exhaled air analyzer according to claim 1, characterized in that: the piston (7) is arranged in the inner cavity of the sampling shell (5), and the piston (7) is connected with the inner wall of the sampling shell (5) in a sliding manner.
3. The external automatic air intake device for an exhaled air analyzer according to claim 1, characterized in that: the filtering and extracting mechanism comprises a limiting shell (15), a connecting ring (19), a fixing ring (20), a filtering shell (17), filtering holes (1701), a filtering net (18), a limiting ring (16), an extracting pipe and an extracting pump, wherein the inner wall of the air inlet shell (4) is fixedly connected with the limiting ring (16), the top side of the limiting ring (16) is provided with the limiting shell (15) clamped at the top end of the air inlet shell (4), the inner wall of the top end of the limiting shell (15) is fixedly connected with the connecting ring (19), the top side of the connecting ring (19) is attached with the fixing ring (20), the inner wall of the connecting ring (19) is connected with the filtering shell (17) fixedly connected with the fixing ring (20) in a clamping manner, the side surface of the filtering shell (17) is provided with the filtering holes (1701), the inner wall of the filtering shell (17) is attached with the filtering net (18), and the bottom side of the filtering shell (17) is fixedly communicated with the extracting pipe (14), the tail end of the air suction pipe (14) is fixedly communicated with an air suction pump fixed in the air inlet shell (4).
4. The external automatic air intake device for an exhaled air analyzer according to claim 3, characterized in that: the number of the filter holes (1701) is several, and the several filter holes (1701) are uniformly distributed on the surface of the filter shell (17).
5. The external automatic air intake device for an exhaled air analyzer according to claim 3, characterized in that: the cross section of the fixing ring (20) is of a square frame structure, and the top side surface of the fixing ring (20) and the top side surface of the air inlet shell (4) are on the same horizontal plane.
6. The external automatic air intake device for an exhaled air analyzer according to claim 1, characterized in that: the top end of the air inlet shell (4) is connected with a top cover (13) in a clamping mode, an air inlet pipe (21) is fixedly connected to the top side of the top cover (13), and the bottom end of the air inlet pipe (21) is fixedly communicated with the inner cavity of the top cover (13).
7. The external automatic air intake device for an exhaled air analyzer according to claim 1, characterized in that: the clamping mechanism comprises a first clamping plate (22), a second clamping plate (23), a connecting pipe (12), a fixing plate (24), a T-shaped sliding rod (26) and a clamping spring (25), the first clamping plate (22) is fixedly connected to the right side surface of the analyzer body (1), a second clamping plate (23) which is attached to the right side of the analyzer body (1) in a sliding manner is arranged on the top side of the first clamping plate (22), a connecting pipe (12) is clamped between the first clamping plate (22) and the second clamping plate (23), the top end of the connecting pipe (12) is fixedly communicated with the air inlet shell (4), the top side of the second clamping plate (23) is provided with a fixing plate (24) fixedly connected to the right side of the analyzer body (1), the surface of the fixing plate (24) is connected with a T-shaped sliding rod (26) in a sliding mode, and the bottom end of the T-shaped sliding rod (26) is fixedly connected with the surface of the top side of the second clamping plate (23).
8. The external automatic air intake device for an exhaled air analyzer according to claim 7, characterized in that: and a clamping spring (25) sleeved on the surface of the T-shaped sliding rod (26) is arranged on the top side of the second clamping plate (23), and the top side of the second clamping plate (23) is elastically connected with the bottom side surface of the fixing plate (24) through the clamping spring (25).
9. The external automatic air intake device for an exhaled air analyzer according to claim 7, characterized in that: the cross section of the T-shaped sliding rod (26) is of a T-shaped structure, and the T-shaped sliding rod (26) penetrates through the surface of the fixing plate (24) in a sliding mode.
10. A method for obtaining an external automatic air inlet device for an exhaled air analyzer according to any one of claims 1 to 9, wherein: the method comprises the following steps:
firstly, an air inlet shell (4) is clamped in a placing shell (3), a top cover (13) is clamped at the top end of the air inlet shell (4), in use, an air suction pump is started, then external air is sucked into the air inlet shell (4) through an air suction pipe (14), air entering the air inlet shell (4) is filtered through a filter screen (18), impurities in the air are intercepted in the filter screen (18), the filtered air is discharged through filter holes (1701) in the surface of a filter shell (17), and meanwhile discharged air is injected into an analyzer main body (1) through a connecting pipe (12), so that the problem that the impurities are attached to the inner wall of the air inlet shell (4) and are inconvenient to handle by workers is solved, the effect is improved, and the labor intensity is reduced;
two, drive second splint (23) through T type slide bar (26) and remove, under the effect through clamping spring (25), the centre gripping is stabilized in connecting pipe (12) between first splint (22) and second splint (23) of guarantee, improve the stability of connecting pipe (12) and analysis appearance main part (1) junction, the worker can be through starting electric putter (6), electric putter (6) promote piston (7) and take out the partial gas in shell (4) of admitting air through sampling tube (10), the gas of taking out passes through discharge pipe (8) discharge collection, make things convenient for the worker to carry out sample detection, improve the holistic practicality of device, satisfy the user demand.
CN202110567134.1A 2021-05-24 2021-05-24 External automatic air inlet device and method for exhaled air analyzer Pending CN113281112A (en)

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CN212536922U (en) * 2020-03-23 2021-02-12 贺元洪 Spray header fixing device for landscaping
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CN207689216U (en) * 2018-01-16 2018-08-03 苏州英柏检测技术有限公司 A kind of gas sampling assembly
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Application publication date: 20210820