CN214041061U - Novel respirator dead space test device - Google Patents
Novel respirator dead space test device Download PDFInfo
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- CN214041061U CN214041061U CN202022809264.5U CN202022809264U CN214041061U CN 214041061 U CN214041061 U CN 214041061U CN 202022809264 U CN202022809264 U CN 202022809264U CN 214041061 U CN214041061 U CN 214041061U
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Abstract
The utility model relates to the technical field of respirator dead space test equipment, in particular to a novel respirator dead space test device, which comprises a test board, a carbon dioxide gas storage tank and a host, wherein the test board is provided with a bionic head die, and the carbon dioxide gas storage tank is positioned at the adjacent side of the test board; the test board is provided with a first respirator and a second respirator, a carbon dioxide pressure regulating valve, a first pressure regulating meter, an inlet pressure regulating valve, a flowmeter and an electromagnetic valve are arranged between the first respirator and the carbon dioxide gas storage tank, and the first respirator is provided with a first one-way valve. The design is suitable for controlling and detecting the standard of a carbon dioxide pressure regulating valve, a first pressure regulating meter, an inlet pressure regulating valve, a flow meter and an electromagnetic valve, the whole structure is simple, the waveform and the frequency of the first respirator and the second respirator are convenient to adjust, and the carbon dioxide analysis precision is high.
Description
Technical Field
The utility model relates to a respirator dead space test equipment technical field especially relates to a novel respirator dead space test device.
Background
The respirator dead space test device is an instrument for detecting the volume fraction of carbon dioxide inhaled by a self-priming, filtering, particulate-proof respirator from a previous exhalation.
The expiratory valve is worn on the matched test head model in an airtight mode, a dead space testing device is started, and the concentration of carbon dioxide in the inhaled air and the environment is continuously monitored and recorded until a stable value is reached; but current respirator dead space testing arrangement's compact structure, the analytical accuracy of carbon dioxide is not high, to this problem, the utility model provides a novel respirator dead space testing arrangement.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a novel respirator dead space testing device.
The utility model adopts the technical proposal that: a novel respirator dead cavity testing device comprises a testing table, a carbon dioxide gas storage tank and a host, wherein a bionic head die is arranged on the testing table, and the carbon dioxide gas storage tank is positioned on the adjacent side of the testing table; the test table is provided with a first breathing machine and a second breathing machine, a carbon dioxide pressure regulating valve, a first pressure regulating meter, an inlet pressure regulating valve, a flowmeter and an electromagnetic valve are arranged between the first breathing machine and a carbon dioxide gas storage tank, the carbon dioxide pressure regulating valve is arranged at the rear end of the carbon dioxide gas storage tank, the first pressure regulating valve is arranged at the rear end of the carbon dioxide pressure regulating valve, the inlet pressure regulating valve, the flowmeter and the electromagnetic valve are sequentially arranged on the first pressure regulating valve, aiming at high-purity carbon dioxide gas, different breathing frequencies and breathing strokes need to manually regulate the inlet pressure of the high-purity carbon dioxide gas through the inlet pressure regulating valve to control different flow rates so as to achieve the purpose of different mixing ratios, the electromagnetic valve is connected with the first breathing machine, the first breathing machine is provided with a first one-way valve, and the test table is suitable for the carbon dioxide pressure regulating valve, the first pressure regulating meter, the second pressure regulating meter and the electromagnetic valve, The inlet pressure regulating valve, the flowmeter and the electromagnetic valve are used for controlling and detecting the standard, the whole structure is simple, the waveform and the frequency of the first respirator and the second respirator are convenient to adjust, and the carbon dioxide analysis precision is high.
Preferably, second check valve and first carbon dioxide analysis appearance have between first breathing machine and the bionical head mould, the second check valve set up in the rear end of first breathing machine, first carbon dioxide analysis appearance one end is connected with the second check valve, the other end is connected with the bionical head mould.
Preferably, a third one-way valve is arranged between the second respirator and the bionic head die and is positioned at the rear end.
Preferably, be provided with the fourth check valve on the second breathing machine, fourth check valve rear end be provided with second carbon dioxide analysis appearance, and second carbon dioxide analysis appearance rear end is connected with the exhaust emission interface.
Preferably, a third carbon dioxide analyzer is arranged on the adjacent side of the test platform, the third carbon dioxide analyzer and the bionic head die are located on the same horizontal line, the distance between the third carbon dioxide analyzer and the bionic head die is 95-105cm, and an RS232 interface is arranged between the third carbon dioxide analyzer and the host.
Preferably, the fan is arranged on the adjacent side of the test board, and in the detection process, the fan is needed to blow air from the side face, so that the airflow in front of the bionic head mold is further kept at a certain flow speed.
Preferably, the main machine comprises a main machine controller and an operation button, the operation button is connected with the main machine controller, the first breathing machine and the second breathing machine are both connected with the main machine controller, and a third carbon dioxide analyzer feeds back signals to the main machine controller; the main machine simulates the sine wave curve of human respiration through the first respirator and the second respirator.
To sum up, the utility model discloses beneficial effect does:
1. a carbon dioxide pressure regulating valve, a first pressure regulating meter, an inlet pressure regulating valve, a flow meter and an electromagnetic valve are arranged between a first respirator and a carbon dioxide gas storage tank, the carbon dioxide pressure regulating valve is arranged at the rear end of the carbon dioxide gas storage tank, the first pressure regulating valve is arranged at the rear end of the carbon dioxide pressure regulating valve, the electromagnetic valve is connected with the first respirator, a first one-way valve is arranged on the first respirator, a second one-way valve and a first carbon dioxide analyzer are arranged between the first respirator and a bionic head die, the second one-way valve is arranged at the rear end of the first respirator, one end of the first carbon dioxide analyzer is connected with the second one-way valve, and the other end of the first carbon dioxide analyzer is connected with the bionic head die; be provided with the third check valve between second breathing machine and the bionical head mould, the third check valve be located the rear end, be provided with the fourth check valve on the second breathing machine, the fourth check valve rear end be provided with second carbon dioxide analysis appearance, and second carbon dioxide analysis appearance rear end is connected with the waste gas discharge interface, this design is suitable for first breathing machine and second breathing and comes control and detection standard's device, overall structure is simple, and first breathing machine and second breathing machine waveform, frequency control are convenient moreover, and carbon dioxide analysis precision is high.
2. The inlet pressure regulating valve, the flowmeter and the electromagnetic valve are sequentially arranged on the first pressure regulating valve, and aiming at high-purity carbon dioxide, the inlet pressure of the high-purity carbon dioxide is manually adjusted through the inlet pressure regulating valve to control different flow rates at different respiratory frequencies and respiratory strokes, so that the purpose of different mixing ratios is achieved.
3. The main machine comprises a main machine controller and an operating button, the operating button is connected with the main machine controller, the first breathing machine and the second breathing machine are both connected with the main machine controller, and a third carbon dioxide analyzer feeds back signals to the main machine controller; the main machine simulates the sine wave curve of human respiration through the first respirator and the second respirator.
4. The fan is arranged on the adjacent side of the test board, and in the detection process, the fan is used for blowing air to the side face, so that the airflow in front of the bionic head mold is kept at a certain flow speed.
Drawings
In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is apparent that other drawings are obtained from the drawings.
Fig. 1 is a schematic view of the overall structure of the present invention.
The labels in the figure are: the device comprises a test board 1, a carbon dioxide gas storage tank 2, a bionic head die 3, a first breathing machine 4, a second breathing machine 5, a carbon dioxide pressure regulating valve 6, a first pressure regulating meter 7, an inlet pressure regulating valve 8, a flowmeter 9, an electromagnetic valve 10, a first one-way valve 11, a second one-way valve 12, a first carbon dioxide analyzer 13, a third one-way valve 14, a fourth one-way valve 15, a second carbon dioxide analyzer 16, an exhaust gas discharge interface 17, a third carbon dioxide analyzer 18, a fan 19, a host controller 20, an operation button 21 and a host 23.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the drawings in the embodiments of the present invention to perform more detailed description on the technical solution in the embodiments of the present invention.
As shown in fig. 1, an arrow in the figure indicates a gas flowing direction, and a novel respirator dead space testing device comprises a testing platform 1, a carbon dioxide gas storage tank 2 and a host 23, wherein a bionic head die 3 is arranged on the testing platform 1, and the carbon dioxide gas storage tank 2 is positioned at the adjacent side of the testing platform 1; the test bench 1 is provided with a first breathing machine 4 and a second breathing machine 5;
in order to let the air current before the bionical head mould 3 keep at certain velocity of flow, the utility model discloses preferred embodiment is, and 1 adjacent side of testboard is provided with fan 19, in the testing process, need blow through the electric fan to the side again and keep the velocity of flow.
In order to facilitate the user to adjust the waveform and frequency of the first respirator 4 and the second respirator 5, the preferred embodiment of the present invention is that a carbon dioxide pressure regulating valve 6, a first pressure regulating meter 7, an inlet pressure regulating valve 8, a flow meter 9 and a solenoid valve 10 are arranged between the first respirator 4 and the carbon dioxide gas storage tank 2, the carbon dioxide pressure regulating valve 6 is arranged at the rear end of the carbon dioxide gas storage tank 2, the first pressure regulating valve is arranged at the rear end of the carbon dioxide pressure regulating valve 6, the inlet pressure regulating valve 8, the flow meter 9 and the solenoid valve 10 are sequentially arranged on the first pressure regulating valve, the solenoid valve 10 is connected with the first respirator 4, and a first check valve 11 is arranged on the first respirator 4; aiming at high-purity carbon dioxide, the intake pressure of the high-purity carbon dioxide is manually adjusted through an inlet pressure regulating valve 8 to control different flow rates according to different breathing frequencies and breathing strokes, so that the purpose of different mixing ratios is achieved;
a second one-way valve 12 and a first carbon dioxide analyzer 13 are arranged between the first respirator 4 and the bionic head die 3, the second one-way valve 12 is arranged at the rear end of the first respirator 4, one end of the first carbon dioxide analyzer 13 is connected with the second one-way valve 12, and the other end is connected with the bionic head die 3;
a third one-way valve 14 is arranged between the second respirator 5 and the bionic head die 3, and the third one-way valve 14 is positioned at the rear end; a fourth one-way valve 15 is arranged on the second respirator 5, a second carbon dioxide analyzer 16 is arranged at the rear end of the fourth one-way valve 15, and a waste gas discharge interface 17 is connected to the rear end of the second carbon dioxide analyzer 16;
a third carbon dioxide analyzer 18 is arranged on the adjacent side of the test platform 1, the third carbon dioxide analyzer 18 and the bionic head die 3 are positioned on the same horizontal line, the distance between the third carbon dioxide analyzer 18 and the bionic head die 3 is 95-105cm, and an RS232 interface is arranged between the third carbon dioxide analyzer 18 and the host 23; the design is suitable for the first breathing machine 4 and the second breathing to control and detect the standard device, the structure is simple, the waveform and the frequency of the first breathing machine 4 and the second breathing machine 5 are convenient to adjust, and the carbon dioxide analysis precision is high.
In order to facilitate the first respirator 4 and the second respirator 5 to reach the sine wave curve for simulating the respiration of a human body, the preferred embodiment of the utility model is that the host 23 comprises a host controller 20 and an operating button 21, the operating button 21 is connected with the host controller 20, the first respirator 4 and the second respirator 5 are both connected with the host controller 20, and a third carbon dioxide analyzer 18 feeds back a signal to the host controller 20; the main machine 23 simulates the human body breathing sine wave curve through the first breathing machine 4 and the second breathing machine 5.
The working mode is as follows: the first respirator 4 and the second respirator 5 move synchronously, when the first respirator 4 and the second respirator 5 move downwards to act as expiration, the second one-way valve 12 and the fourth one-way valve 15 are in a ventilation state, the first one-way valve 11 and the third one-way valve 14 are in a stop state, the electromagnetic valve 10 is in a closed state, gas in the first respirator 4 is discharged sequentially through the second one-way valve 12, the first carbon dioxide analyzer 13 and the bionic head die 3, and gas in the second respirator 5 is discharged sequentially through the fourth one-way valve 15, the second carbon dioxide analyzer 16 and the waste gas discharge interface 17;
the first respirator 4 and the second respirator 5 move upwards to perform inspiration action, the second one-way valve 12 and the fourth one-way valve 15 are in a cut-off state at the moment, the first one-way valve 11 and the third one-way valve 14 are in a ventilation state, the electromagnetic valve 10 is in an opening state, gas in the second respirator 5 enters the bionic head model 4 and the third one-way valve 14 sequentially through the first one-way valve 11, the carbon dioxide pressure regulating valve 6, the first pressure regulating meter 7, the inlet pressure regulating valve 8, the flow meter 9 and the electromagnetic valve 10 in a mixed mode, and the gas in the first respirator 4 enters the cavity of the first respirator through the bionic head model 3 and the third one-way valve 14.
The skilled person should understand that: although the present invention has been described in terms of the above embodiments, the inventive concept is not limited to this embodiment, and any modification that utilizes the inventive concept is intended to be within the scope of the present patent application.
Claims (7)
1. The utility model provides a novel respirator dead space test device which characterized in that: the bionic head test device comprises a test board, a carbon dioxide gas storage tank and a host, wherein the test board is provided with a bionic head die, and the carbon dioxide gas storage tank is positioned at the adjacent side of the test board; the test bench on be provided with first breathing machine and second breathing machine, be equipped with carbon dioxide air-vent valve, first pressure regulating table, import air-vent valve, flowmeter and solenoid valve between first breathing machine and the carbon dioxide gas holder, the carbon dioxide air-vent valve set up in the rear end of carbon dioxide gas holder, first air-vent valve sets up in the rear end of carbon dioxide air-vent valve, import air-vent valve, flowmeter and solenoid valve set gradually on first air-vent valve, and the solenoid valve is connected with first breathing machine, first breathing machine on be provided with first check valve.
2. The novel respirator dead space testing device of claim 1, wherein: second check valve and first carbon dioxide analysis appearance have between first breathing machine and the bionical head mould, the second check valve set up in the rear end of first breathing machine, first carbon dioxide analysis appearance one end is connected with the second check valve, the other end is connected with the bionical head mould.
3. The novel respirator dead space testing device of claim 1, wherein: and a third one-way valve is arranged between the second respirator and the bionic head die and is positioned at the rear end.
4. The novel respirator dead space testing device of claim 3, wherein: the second respirator is provided with a fourth one-way valve, the rear end of the fourth one-way valve is provided with a second carbon dioxide analyzer, and the rear end of the second carbon dioxide analyzer is connected with a waste gas discharge interface.
5. The novel respirator dead space testing device of claim 1, wherein: and a third carbon dioxide analyzer is arranged on the adjacent side of the test platform, the third carbon dioxide analyzer and the bionic head die are positioned on the same horizontal line, the distance between the third carbon dioxide analyzer and the bionic head die is 95-105cm, and an RS232 interface is arranged between the third carbon dioxide analyzer and the host.
6. The novel respirator dead space testing device of claim 1, wherein: the fan is arranged on the adjacent side of the test board.
7. The novel respirator dead space testing device of claim 1, wherein: the host computer including host controller and operating button, operating button be connected with the host controller, first breathing machine all be connected with the host controller with the second breathing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022809264.5U CN214041061U (en) | 2020-11-27 | 2020-11-27 | Novel respirator dead space test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022809264.5U CN214041061U (en) | 2020-11-27 | 2020-11-27 | Novel respirator dead space test device |
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| Publication Number | Publication Date |
|---|---|
| CN214041061U true CN214041061U (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022809264.5U Active CN214041061U (en) | 2020-11-27 | 2020-11-27 | Novel respirator dead space test device |
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| Country | Link |
|---|---|
| CN (1) | CN214041061U (en) |
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- 2020-11-27 CN CN202022809264.5U patent/CN214041061U/en active Active
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