CN116784888A - Off-line type expired gas collector - Google Patents
Off-line type expired gas collector Download PDFInfo
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- CN116784888A CN116784888A CN202311086189.6A CN202311086189A CN116784888A CN 116784888 A CN116784888 A CN 116784888A CN 202311086189 A CN202311086189 A CN 202311086189A CN 116784888 A CN116784888 A CN 116784888A
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- 238000001514 detection method Methods 0.000 claims abstract description 25
- 238000004140 cleaning Methods 0.000 claims description 38
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 32
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 17
- 239000001569 carbon dioxide Substances 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 10
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 210000003456 pulmonary alveoli Anatomy 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 208000019693 Lung disease Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The application relates to the technical field of expired gas detection technology, and discloses an off-line expired gas collector which comprises an alveolar gas automatic collection device, wherein the alveolar gas automatic collection device comprises an automatic switching component and an alveolar gas collection component formed by a three-way pipe and a gas collection bag, the three-way pipe comprises a pipe head, a communicating pipe head and a connector, a mounting pipe and a main pipe body are relatively fixed, a sliding step pipe is arranged in the main pipe body, the mounting pipe and the pressure detection pipe are both arranged in the sliding step pipe, the sliding step pipe is in sliding fit with the main pipe body, the pressure detection pipe is fixedly arranged on one side of the mounting pipe, which is close to the first pipe body, of the mounting pipe, the three-way pipe and the gas collection bag are designed into an integrated alveolar gas collection component, the structure of the sliding step pipe is matched with the integrated alveolar gas collection component, and pipes and the gas collection bag are not required to be replaced respectively, so that convenience in each replacement is greatly improved.
Description
Technical Field
The application relates to the technical field of expired gas detection technology, in particular to an off-line expired gas collector.
Background
Some pulmonary diseases can be accurately detected by analyzing the components of the alveolar gas, the alveolar gas is collected by simply exhaling outwards, the gas exhaled first during exhalation is the dead space gas, and the dead space gas cannot be used for detecting the diseases, so that the dead space gas needs to be discharged in a targeted manner during the collection of the alveolar gas.
In order to ensure medical health, tubes contacted with the mouth and gas collecting bags for collecting alveolar gas in the existing expired gas collecting device are disposable products, and different tubes and gas collecting bags can be replaced when expired gas is collected for different people, but the tubes and gas collecting bags need to be replaced respectively when tubes and gas collecting bags are replaced by the existing automatic alveolar gas collecting device, so that replacement operation is troublesome and use is inconvenient.
Disclosure of Invention
The application aims to provide an off-line expired gas collector so as to solve the problems that an existing expired gas collecting device pipe and a gas collecting bag are inconvenient to replace and the like.
The application is realized by the following technical scheme:
an off-line expired gas collector comprises an alveolar gas automatic collection device, wherein the alveolar gas automatic collection device comprises an automatic switching component and an alveolar gas collection component consisting of a three-way pipe and a gas collection bag, and the three-way pipe comprises a pipe head, a communicating pipe head and a connector;
the automatic switching device comprises a sliding step pipe, a pressure detection pipe, a carbon dioxide sensor, a mounting pipe, an air pressure sensor and a main pipe body, wherein the sliding step pipe is divided into a first pipe body and a second pipe body, the inner diameter of the first pipe body is smaller than that of the second pipe body, the outer diameter of the mounting pipe is larger than that of the second pipe body and smaller than that of the first pipe body, the mounting pipe and the main pipe body are relatively fixed, the sliding step pipe is arranged in the main pipe body, the mounting pipe and the pressure detection pipe are all arranged in the sliding step pipe, the sliding step pipe and the main pipe body are in sliding fit, the pressure detection pipe is fixedly arranged on one side of the mounting pipe, which is close to the first pipe body, the air pressure sensor is fixedly arranged in the pressure detection pipe, the pressure detection pipe is coaxial with the first pipe body, and the carbon dioxide sensor is used for detecting the concentration of carbon dioxide between the mounting pipe and the second pipe body.
Through realizing the switching of exhaust state to the slip of slip ladder pipe, the structural feature of slip ladder pipe cooperates with the pressure detection pipe and matches the three-way pipe again and can put forward the gas collection bag, can also regard three-way pipe and gas collection bag as an integral usage, need not to change pipe and gas collection bag respectively, very big promotion the convenience when changing each time, the gas collection area of front can make the distance of alveolus gas collection bag to the pipeline between the mouth become very short, the influence of the residual gas in the very big exclusion pipeline to the alveolus gas, can collect the alveolus gas of purity higher, when alveolus gas collection subassembly changes, only need to hold the communication joint position of three-way pipe and just can accomplish the change, tube head position of three-way pipe can be fine avoid touching when changing, can fine avoid being polluted.
The utility model discloses a three-way pipe, including main body, connecting head, three-way pipe, connecting head and connecting head, be equipped with the connecting pipe fixedly to be equipped with in person body one end, the internal diameter of connecting pipe with the external diameter of first body is the same, the connecting pipe is located be close to on the main body the one end of first body, the three-way pipe the connector with be detachable connection between the connecting pipe, can be convenient for the quick installation of three-way pipe through the setting of connecting pipe, be interference fit between connecting pipe and the three-way pipe, through inserting the connecting pipe a part and accomplish the quick installation fixedly of connecting pipe and three-way pipe behind the three-way pipe, easy to use convenient operation can effectively improve the change speed.
The inside shoulder hole structure that is of connector, the shoulder hole includes first hole and second hole, the aperture of first hole is greater than the aperture of second hole, first hole with the grafting pipe is interference fit, the aperture of second hole with the external diameter of first body is the same, connect in the tube head the second hole with the hole of intercommunication connector link up each other, and the external diameter of first body equals the internal diameter of second hole can effectively prevent that gas from oozing from between second hole and the first body again can be fine assurance first body slides in the second hole.
The pipe head and the connector are coaxially arranged, the communicating pipe head is perpendicular to the pipe head, and a manual stop valve is arranged at the communicating pipe head.
The sliding of the sliding ladder pipe is controlled by an electromagnet assembly, the electromagnet assembly comprises a guide post, an electromagnetic coil and a permanent magnet, the permanent magnet is fixedly connected with the sliding ladder pipe, the permanent magnet is in sliding fit with the guide post, the electromagnetic coil is fixed with the guide post, the sliding energy of the sliding ladder pipe is controlled by the electromagnet assembly, so that the reaction speed of the sliding ladder pipe is faster, and the sliding switching efficiency is higher, so that the flexibility and stability of the device are improved.
The sliding step pipe is characterized in that a first exhaust port is formed in the second pipe body of the sliding step pipe, a second exhaust port is formed in the main pipe body, and when the sliding step pipe is located at the limit position close to the plug-in pipe, the first exhaust port is aligned with the second exhaust port.
The guide groove is formed in the sliding step pipe, the guide strip is fixedly arranged on the main pipe body, the sliding step pipe is in sliding fit with the guide strip through the guide groove, the design of the guide groove and the guide strip can ensure that the sliding step pipe and the main pipe body can only slide along the axial direction and cannot rotate relatively, and dislocation caused by rotation between the first discharge port and the second discharge port can be avoided.
The mounting tube is also fixedly provided with a flowmeter, the flowmeter is positioned in the mounting tube, a first opening is arranged at the air inlet of the mounting tube positioned in the flowmeter, a second opening is arranged at the air outlet of the mounting tube positioned in the flowmeter, a spacer ring is arranged between the first opening and the second opening, the second opening and the second exhaust port are positioned on the same side of the spacer ring, and the flowmeter can detect the continuity of blown gas before the single blowing starts and before the sliding step pipe is switched to a gas collecting state, so that the purity of alveolar gas is prevented from being influenced by ventilation during gas collection.
The main pipe body is also fixedly provided with a heating pipe, the heating pipe is used for heating the sliding step pipe, the pressure detection pipe, the installation pipe and the flowmeter inner pipeline, so that the condensation of water vapor is prevented, and the phenomenon that the exhaled air is attached to the inner surface of the branch pipeline to generate mutual cross interference after condensation can be reduced to the greatest extent.
The application also comprises a cleaning mechanism, wherein the cleaning mechanism comprises a shell, a cleaning pump, a battery pack and a connecting air pipe, the cleaning pump, the battery pack and the connecting air pipe are arranged in the shell, a cleaning nozzle is fixedly arranged on the shell, the cleaning nozzle is communicated with an air outlet of the cleaning pump through the connecting air pipe, and the cleaning mechanism can effectively clean the alveolar air automatic collection device by pumping air into the alveolar air automatic collection device, so that cross infection during air collection can be prevented, and damage of internal water vapor to the device can be reduced.
Compared with the prior art, the application has the following advantages and beneficial effects:
according to the application, the three-way pipe and the gas collecting bag are designed into the integrated alveolar gas collecting assembly through the sliding step pipe structure, the sliding step pipe structure is matched with the integrated alveolar gas collecting assembly, and the pipe and the gas collecting bag are not required to be replaced respectively, so that convenience in each replacement is greatly improved.
When the alveolar gas collection assembly is replaced, the replacement can be completed only by holding the communicated joint position of the three-way pipe, the pipe head position of the three-way pipe can be well prevented from being touched during the replacement, and the pipe head can be well prevented from being polluted.
The distance from the alveolar gas collecting bag to the pipeline between the nozzles is extremely short, so that the influence of residual gas in the pipeline on the alveolar gas can be greatly eliminated, and the alveolar gas with higher purity can be collected.
The pressure sensor is used for detecting the pressure during alveolar gas collection, and if the pressure sensor detects sudden pressure reduction during alveolar gas collection, the position where the mouth is meshed with the pipe is indicated to leak gas at the moment, so that the interference caused by the leakage gas can be timely eliminated.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:
FIG. 1 is a schematic view of the structure of an automatic alveolar gas collecting apparatus according to the present application in an exhaust state;
FIG. 2 is a schematic diagram showing the structure of the automatic alveolar gas collecting apparatus according to the present application when collecting gas;
FIG. 3 is an enlarged view of the application at A in FIG. 1;
FIG. 4 is a cross-sectional view taken at B-B of FIG. 1 in accordance with the present application;
fig. 5 is a schematic structural view of a cleaning mechanism in the present application.
The reference numerals are represented as follows: the device comprises a three-way pipe, a 2-gas collecting bag, a 3-manual stop valve, a 4-main pipe body, a 5-sliding stepped pipe, a 6-pressure detection pipe, a 7-air pressure sensor, an 8-flowmeter, a 9-carbon dioxide sensor, a 10-first discharge port, a 11-second discharge port, a 12-spacer ring, a 13-mounting pipe, a 14-plug pipe, a 15-permanent magnet, a 16-electromagnetic coil, a 17-guide column, a 18-shell, a 19-cleaning nozzle, a 20-cleaning pump, a 21-connecting air pipe, a 22-battery pack, a 23-heating pipe, a 51-first pipe body and a 52-second pipe body.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present application, the present application will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present application and the descriptions thereof are for illustrating the present application only and are not to be construed as limiting the present application. It should be noted that the present application is already in a practical development and use stage.
Examples
As shown in fig. 1 to 5, the embodiment includes an alveolar gas automatic collection device, the alveolar gas automatic collection device includes an automatic switching component and an alveolar gas collection component composed of a tee 1 and a gas collection bag 2, three pipe heads of the tee 1 are respectively: the effect of the tee 1 is the same as that of a pipe in a traditional alveolar gas automatic collection device, the alveolar gas collection assembly integrated by the tee 1 and the gas collection bag 2 can greatly improve the convenience in use, sanitation can be ensured, the traditional alveolar gas automatic collection device needs to replace a disposable pipe and the gas collection bag 2 respectively after being used by one person and before being used by the next person, replacement is troublesome, and particularly, the replacement of a pipe is more troublesome, in order to ensure that the sanitation of the pipe can be further installed by using a pipe clamped clean by a tool such as forceps, and the like;
the automatic switching device comprises a sliding step pipe 5, a pressure detection pipe 6, a carbon dioxide sensor 9, an installation pipe 13, an air pressure sensor 7 and a main pipe body 4, wherein the main pipe body 4 is a cylindrical whole body which is more convenient for a user to grasp, the sliding step pipe 5 is divided into a first pipe body 51 and a second pipe body 52, the inner diameter of the first pipe body 51 is smaller than that of the second pipe body 52, the outer diameter of the installation pipe 13 is larger than that of the second pipe body 52 and smaller than that of the first pipe body 51, the installation pipe 13 and the main pipe body 4 are relatively fixed, the sliding step pipe 5 is arranged in the main pipe body 4, the installation pipe 13 and the pressure detection pipe 6 are both arranged in the sliding step pipe 5 and the main pipe body 4 in a sliding fit mode, one side, close to the first pipe body 51, of the installation pipe 13 is fixedly provided with the pressure detection pipe 6, the air pressure sensor 7 is fixedly arranged in the pressure detection pipe 6, the pressure detection pipe 13 and the first pipe body are inserted into the first pipe body 51 from the first pipe body to the first pipe body 51, and the air pressure pipe head 51 can be completely inserted into the first pipe body 51 from the first pipe body when the first pipe body is completely communicated with the first pipe body 51, and the air pressure pipe head 51 can be completely inserted into the air inlet pipe 51, and the air pressure pipe 51 is completely through the first pipe 51, and the air inlet pipe 51 is completely communicated with the air inlet pipe 51.
In this embodiment, the carbon dioxide sensor 9 is fixed on the mounting tube 13, the carbon dioxide sensor 9 is used for detecting the carbon dioxide concentration between the mounting tube 13 and the second tube body 52, and the sliding of the sliding step tube 5 is controlled by the carbon dioxide concentration detected by the carbon dioxide sensor 9.
In order to enable the three-way pipe 1 to be installed on the main pipe body 4 rapidly and conveniently, an insertion pipe 14 is fixedly arranged at one end of the main pipe body 4, the insertion pipe 14 is arranged at one end, close to the first pipe body 51, of the main pipe body 4, the inner diameter of the insertion pipe 14 is identical to the outer diameter of the first pipe body 51, the insertion pipe 14 is used for being connected with a connector of the three-way pipe 1, the connector and the insertion pipe 14 are detachably connected, one of the connection modes is that interference fit is formed between the connector and the insertion pipe 14, after the insertion pipe 14 is inserted into the connector of the three-way pipe 1, the connector is subjected to larger tensioning force, and the fixing of the three-way pipe 1 can be automatically completed through the tensioning force.
It should be noted that, the inside shoulder hole structure that is of connector, the shoulder hole includes first hole and second hole, the aperture in first hole is greater than the aperture in second hole, first hole with grafting pipe 14 is interference fit, the aperture in second hole with the external diameter of first body 51 is the same, connect in the tube head the second hole with the hole of intercommunication joint link up each other, can be completely with through the pipe wall of first body 51 the second hole with cut off between the intercommunication tube head.
In this embodiment, the pipe head and the connector are coaxially arranged, the communicating pipe head is perpendicular to the pipe head, a manual stop valve 3 is arranged at the communicating pipe head, and the manual stop valve 3 is used for opening and closing the gas collecting bag 2.
In this embodiment, the sliding of the sliding step tube 5 is controlled by an electromagnet assembly, the electromagnet assembly includes a guide post 17, an electromagnetic coil 16 and a permanent magnet 15, the permanent magnet 15 is fixedly connected with the sliding step tube 5, the permanent magnet is in sliding fit with the guide post 17, the electromagnetic coil 16 is fixed with the guide post 17, the electromagnetic field direction of the electromagnetic coil 16 is changed by changing the current direction flowing into the electromagnetic coil 16, the left and right sliding of the permanent magnet 15 is controlled by changing the electromagnetic field direction of the electromagnetic coil 16, the sliding step tube 5 is fixed with the permanent magnet 15, and the sliding of the permanent magnet 15 can drive the sliding step tube 5 to slide.
In this embodiment, the first outlet 10 is formed at the second pipe body 52 of the sliding step pipe 5, the second outlet 11 is formed on the main pipe body 4, when the sliding step pipe 5 is located at a limit position close to the insertion pipe 14, the first outlet 10 is aligned with the second outlet 11, and after the first outlet 10 is aligned with the second outlet 11, the inside of the sliding step pipe 5 is communicated with the outside of the main pipe body 4.
In use, referring to fig. 1 and 2, the initial position of the sliding step tube 5 is at the rightmost position, the first outlet 10 and the second outlet 11 are aligned, at this time, the electromagnetic coil 16 and the permanent magnet 15 are in a repulsive state, the unused alveolar gas collecting assembly is taken down, the communicating tube head and the inserting tube 14 in the three-way tube 1 are fixedly installed, the first tube body 51 of the sliding step tube 5 seals the connector of the three-way tube 1, the manual stop valve 3 is manually opened, the main tube 4 is held by a user's hand and then the mouth is used for holding the tube head of the three-way tube 1 to start blowing, the blown gas from the tube head firstly enters the first tube body 51 of the sliding step tube 5 and then enters the second tube body 52 from the first tube body 51, the carbon dioxide sensor 9 in the second tube body 52 detects the concentration of carbon dioxide in the blown gas, and the gas just blown into the second tube body 52 is the unnecessary dead space gas, the dead space gas blown into the second pipe body 52 is firstly discharged from the first discharge port 10 and the second discharge port 11, when the carbon dioxide sensor 9 detects that the concentration of carbon dioxide in the blown gas reaches the set concentration, the blown gas is judged to be alveolar gas at the moment, the magnetic field direction of the electromagnetic coil 16 is controlled to be switched rapidly, the electromagnetic coil 16 and the permanent magnet 15 are attracted mutually after the magnetic field direction of the electromagnetic coil 16 is switched, the permanent magnet 15 drives the sliding step pipe 5 to move rapidly leftwards, after the sliding step pipe 5 moves leftwards, the first pipe body 51 of the sliding step pipe 5 moves leftwards to wrap the pressure detection pipe 6, the pressure detection pipe 6 also seals the first pipe body 51, the pipe head of the three-way pipe 1 is communicated with the communicating pipe head after the first pipe body 51 moves leftwards, the alveolar gas blown out from the pipe directly enters the gas collecting bag 2, meanwhile, the air pressure sensor 7 also starts to detect the air pressure change at the three-way pipe 1 at the moment, when a user blows or ventilation occurs, the air pressure at the three-way pipe 1 suddenly drops, the sudden drop of the air pressure is captured by the air pressure sensor 7, after a signal of the sudden drop of the air pressure is captured, the magnetic field of the electromagnetic coil 16 is controlled again to change, the electromagnetic coil 16 and the permanent magnet 15 are mutually repulsed, the permanent magnet 15 drives the sliding stepped pipe 5 to slide rightwards, the first pipe body 51 on the sliding stepped pipe 5 slides rightwards and then plugs the communicating pipe head of the three-way pipe 1, whether enough alveolar air is collected or not is judged according to the expansion degree of the air collecting bag 2, the manual stop valve 3 is closed firstly after enough alveolar air is collected, and then the alveolar air collecting assembly is taken down, if enough alveolar air is not collected until enough alveolar air is collected by re-blowing.
In this embodiment, in order to ensure that the sliding step pipe 5 and the main pipe body 4 can only slide but cannot rotate relatively, a guide groove is formed in the sliding step pipe 5, a guide bar is fixedly arranged on the main pipe body 4, the sliding step pipe 5 and the main pipe body 4 are in sliding fit with each other through the guide groove and the guide bar, so that the sliding step pipe 5 and the main pipe body 4 can only slide along the axial direction and cannot rotate relatively, and dislocation between the first discharge port 10 and the second discharge port 11 due to rotation can be avoided.
In this embodiment, the mounting tube 13 is further fixedly provided with the flowmeter 8, the flowmeter 8 is located in the mounting tube 13, a first opening is formed in the mounting tube 13 at the air inlet of the flowmeter 8, a second opening is formed in the mounting tube 13 at the air outlet of the flowmeter 8, a spacer ring 12 is disposed between the first opening and the second opening, the spacer ring 12 is fixed with the mounting tube 13, the spacer ring 12 divides the chamber between the ampere-turn tube and the sliding step tube 5 into two chambers, the second opening and the second outlet 11 are located on the same side of the spacer ring 12, the exhaled air flow is monitored by the flowmeter 8 to detect the continuity of the once collected air, so that it is ensured that the user is a stable exhaled air, and whether the user has a ventilation condition in the blowing process can be more accurately detected.
The main pipe body 4 is further fixedly provided with a heating pipe 23, the heating pipe 23 is used for heating the sliding stepped pipe 5, the pressure detection pipe 6, the installation pipe 13 and the pipeline inside the flowmeter 8, water vapor condensation is prevented, the phenomenon that exhaled air is condensed and then attached to the inner surface of the branch pipeline is reduced to the greatest extent, mutual cross interference is generated, the heating of the heating pipe 23 can be achieved by improving the temperature of the heating pipe 23 and then conducting heat conduction, heating and heat preservation of all components inside the heating pipe 23 are achieved, and meanwhile, the heating pipe 23 can also achieve heating of all components inside the pipeline in an electromagnetic heating mode.
The application also comprises a cleaning mechanism, wherein the cleaning mechanism comprises a shell 18, a cleaning pump 20, a battery pack 22 and a connecting air pipe 21, the cleaning pump 20, the battery pack 22 and the connecting air pipe 21 are arranged in the shell 18, a cleaning nozzle 19 is fixedly arranged on the shell 18, the cleaning nozzle 19 is communicated with an air outlet of the cleaning pump 20 through the connecting air pipe 21, the battery pack 22 is used for supplying power to a cleaning device, and the cleaning nozzle 19 is used for being matched with the first pipe body 51 of the sliding stepped pipe 5 to finish cleaning.
In this embodiment, the automatic alveolar gas collecting device may be independently powered by a battery or may share a power supply with the cleaning device via a cable.
During cleaning, the sliding step pipe 5 is controlled to move to a position closest to the insertion pipe 14, the first pipe body 51 of the sliding step pipe 5 is aligned with the cleaning nozzle 19 of the cleaning mechanism, the cleaning pump 20 in the cleaning mechanism is started, clean air is sucked into the cleaning nozzle 19 through the connecting air pipe 21 from the air outlet position, the cleaning nozzle 19 pumps clean air into the sliding step pipe 5, clean air cleans dirty air in the sliding step pipe 5, and mixed air generated in the cleaning process in the sliding step pipe 5 is discharged from the first discharge outlet 10 and the second discharge outlet 11 to finish cleaning.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the application, and is not meant to limit the scope of the application, but to limit the application to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the application are intended to be included within the scope of the application.
Claims (10)
1. The utility model provides an off-line expired gas collector, includes alveolus gas automatic collection device, its characterized in that: the automatic alveolar gas collecting device comprises an automatic switching component and an alveolar gas collecting component which is composed of a three-way pipe (1) and a gas collecting bag (2), wherein the three-way pipe (1) comprises a pipe head, a communicating pipe head and a connector;
the automatic switching device comprises a sliding step pipe (5), a pressure detection pipe (6), a carbon dioxide sensor (9), a mounting pipe (13), an air pressure sensor (7) and a main pipe body (4), wherein the sliding step pipe (5) is divided into a first pipe body (51) and a second pipe body (52), the inner diameter of the first pipe body (51) is smaller than the inner diameter of the second pipe body (52), and the outer diameter of the mounting pipe (13) is larger than the inner diameter of the second pipe body (52) and smaller than the inner diameter of the first pipe body (51);
the installation pipe (13) and the main pipe body (4) are relatively fixed, the sliding step pipe (5) is arranged in the main pipe body (4), the installation pipe (13) and the pressure detection pipe (6) are arranged in the sliding step pipe (5), and the sliding step pipe (5) is in sliding fit with the main pipe body (4);
a pressure detection tube (6) is fixedly arranged on one side, close to the first tube body (51), of the mounting tube (13), an air pressure sensor (7) is fixedly arranged in the pressure detection tube (6), and the pressure detection tube (6) is coaxial with the first tube body (51);
the carbon dioxide sensor (9) is used for detecting the carbon dioxide concentration between the mounting pipe (13) and the second pipe body (52).
2. The offline exhaled gas collector of claim 1, wherein: the three-way pipe is characterized in that an inserting pipe (14) is fixedly arranged at one end of the main pipe body (4), the inner diameter of the inserting pipe (14) is identical to the outer diameter of the first pipe body (51), the inserting pipe (14) is arranged at one end, close to the first pipe body (51), of the main pipe body (4), and the connector of the three-way pipe (1) is detachably connected with the inserting pipe (14).
3. The offline exhaled gas collector of claim 2, wherein: the inside shoulder hole structure that is of connector, the shoulder hole includes first hole and second hole, the aperture in first hole is greater than the aperture in second hole, first hole with grafting pipe (14) are interference fit, the aperture in second hole with the external diameter of first body (51) is the same, connect in the tube head the second hole with the hole of intercommunication joint link up each other.
4. The offline exhaled gas collector of claim 2, wherein: tube head with the connector is coaxial to be set up, the intercommunication tube head with tube head mutually perpendicular, intercommunication tube head department is equipped with manual stop valve (3).
5. The offline exhaled gas collector of claim 1, wherein: the sliding of the sliding step pipe (5) is controlled by an electromagnet assembly, the electromagnet assembly comprises a guide post (17), an electromagnetic coil (16) and a permanent magnet (15), the permanent magnet (15) is fixedly connected with the sliding step pipe (5), the permanent magnet is in sliding fit with the guide post (17), and the electromagnetic coil (16) is fixed with the guide post (17).
6. The offline exhaled gas collector of claim 2, wherein: a first discharge port (10) is formed in a second pipe body (52) of the sliding step pipe (5), a second discharge port (11) is formed in the main pipe body (4), and when the sliding step pipe (5) is located at a limit position close to the plug-in pipe (14), the first discharge port (10) is aligned with the second discharge port (11).
7. The offline exhaled gas collector of claim 1, wherein: the guide groove is formed in the sliding step pipe (5), the guide strip is fixedly arranged on the main pipe body (4), and the sliding step pipe (5) is in sliding fit with the guide strip through the guide groove.
8. The offline exhaled gas collector of claim 1, wherein: still fixed mounting has flowmeter (8) on mounting tube (13), flowmeter (8) are located in mounting tube (13), mounting tube (13) are located the air inlet department of flowmeter (8) has seted up first opening, mounting tube (13) are located the gas outlet department of flowmeter (8) has seted up the second opening, first opening with be equipped with spacer ring (12) between the second opening, spacer ring (12) with mounting tube (13) are fixed, the second opening with second discharge port (11) are located the same one side of spacer ring (12).
9. The offline exhaled gas collector of claim 1, wherein: a heating pipe (23) is also fixedly arranged on the main pipe body (4).
10. The offline exhaled gas collector of claim 1, wherein: the application further comprises a cleaning mechanism, wherein the cleaning mechanism comprises a shell (18), a cleaning pump (20), a battery pack (22) and a connecting air pipe (21), wherein the cleaning pump (20), the battery pack (22) and the connecting air pipe (21) are arranged in the shell (18), a cleaning nozzle (19) is further fixedly arranged on the shell (18), and the cleaning nozzle (19) is communicated with an air outlet of the cleaning pump (20) through the connecting air pipe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311086189.6A CN116784888B (en) | 2023-08-28 | 2023-08-28 | Off-line type expired gas collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311086189.6A CN116784888B (en) | 2023-08-28 | 2023-08-28 | Off-line type expired gas collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116784888A true CN116784888A (en) | 2023-09-22 |
| CN116784888B CN116784888B (en) | 2023-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311086189.6A Active CN116784888B (en) | 2023-08-28 | 2023-08-28 | Off-line type expired gas collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116784888B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH078472A (en) * | 1993-06-23 | 1995-01-13 | Nippondenso Co Ltd | Breathing amount measurement device |
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| CN116784888B (en) | 2023-10-24 |
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