CN216877514U - Respiratory gas detection device - Google Patents
Respiratory gas detection device Download PDFInfo
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- CN216877514U CN216877514U CN202122958076.3U CN202122958076U CN216877514U CN 216877514 U CN216877514 U CN 216877514U CN 202122958076 U CN202122958076 U CN 202122958076U CN 216877514 U CN216877514 U CN 216877514U
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Abstract
The utility model discloses a respiratory gas detection device, and belongs to the technical field of gas analysis. The respiratory mask comprises a respiratory mask and a detection box body for detecting the concentration of oxygen in expiration, wherein the respiratory mask is connected with the detection box body through a hose, a shunt valve is arranged on one side, close to the respiratory mask, of the hose, the shunt valve comprises an installation sleeve sleeved on the periphery of the hose, the installation sleeve is communicated with the hose, a one-way valve communicated with the inside of the installation sleeve is arranged on the outer side of the installation sleeve, a silica gel sheet matched with the installation sleeve is arranged on the inner side of the installation sleeve in the radial direction, and one side of the silica gel sheet is hinged and fixed on the inner side wall of the installation sleeve. Aiming at the problems in the prior art, the utility model provides a respiratory gas detection device, which can reduce repeated breathing of waste gas, effectively improve the detection precision of exhaled gas, reduce the use of a flowmeter and ensure that the whole device is more convenient and lighter to use.
Description
Technical Field
The utility model belongs to the technical field of gas analysis, and particularly relates to a respiratory gas detection device.
Background
The maximum oxygen intake is the maximum intensity exercise performed by the human body, when the body fails to support the following exercise continuously, the oxygen content which can be taken in is one of the important material selection bases of endurance athletes, and is an important index for reflecting the aerobic exercise capacity of the human body, and the high-level maximum oxygen intake is the basis of the high-level aerobic exercise capacity. However, the existing respiratory gas inspection device is generally low in detection precision, or large in equipment and high in cost, and the requirement of detection at any time is difficult to meet.
Through retrieval, patents related to respiratory gas detection devices have been disclosed, such as chinese patent publication No.: CN203029238U discloses a large oxygen uptake tester, which comprises a breathing mask and a circuit part, wherein the breathing mask is provided with an air inlet pipe and an air outlet pipe, the air inlet pipe is provided with an air flowmeter and an air inlet pipe electromagnetic valve, and the breathing mask is connected with an air storage tank through the air outlet pipe; an air outlet pipe electromagnetic valve is arranged on the air outlet pipe, and an oxygen concentration sensor is arranged in the gas storage tank; the circuit part comprises a microcontroller, and a human body inspiration action sensor, a human body expiration action sensor and a liquid crystal display screen which are connected with the microcontroller. The microcontroller can calculate the total oxygen volume of the incoming call of the tester through the gas flowmeter, and can calculate the total oxygen volume of the outgoing through the oxygen concentration sensor, namely, the maximum oxygen uptake of the tester can be obtained. However, the flow meter is adopted for flow rate test, the cost is high, the volume of the flow meter is large, and the miniaturization of equipment is not facilitated.
Also as in chinese patent application No.: 2019110884637 discloses a human body breathing gas concentration detector, relating to the technical field of gas detection. Including blowing nozzle, connecting seat, breather pipe, detector body, a movable section of thick bamboo and base, its characterized in that: the bottom activity of blowing nozzle is provided with the connecting seat, and the fixed breather pipe that is provided with in bottom of connecting seat, the outside of breather pipe from last detector body and the movable cylinder of down having set gradually, and the fixed movable cylinder that is provided with in bottom of detector body, the bottom activity of movable cylinder are provided with the base, and the fixed carbon dioxide concentration detector that is provided with in one side of detector body inside. This human breathing gas concentration detector, through setting up carbon dioxide concentration detector and oxygen concentration detector, gaseous air blow nozzle enters into the breather pipe to enter into carbon dioxide concentration detector and oxygen concentration detector and detect, the result that detects utilizes controller control to transmit the display screen and shows, is convenient for in time know gas concentration.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
Aiming at the problems, the utility model provides a respiratory gas detection device, which can reduce repeated respiration of waste gas, effectively improve detection precision of exhaled gas, reduce use of a flowmeter and enable the whole device to be more convenient and lighter to use.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
The respiratory gas detection device comprises a respiratory mask and a detection box body used for detecting the concentration of oxygen in expiration, wherein the respiratory mask is connected with the detection box body through a hose, a flow divider is arranged on one side, close to the respiratory mask, of the hose, the flow divider comprises an installation sleeve sleeved on the periphery of the hose, the installation sleeve is communicated with the hose, a one-way valve communicated with the inside of the installation sleeve is arranged on the outer side of the installation sleeve, a silica gel sheet matched with the installation sleeve is arranged on the inner side of the installation sleeve along the radial direction, and one side of the silica gel sheet is hinged and fixed on the inner side wall of the installation sleeve.
As a further improvement of the utility model, the flow divider comprises a mounting sleeve and an air inlet pipe which are vertically communicated, one end of the air inlet pipe is communicated with the outside, the other end of the air inlet pipe is communicated with the mounting sleeve, and a one-way valve is arranged in the air inlet pipe.
As a further improvement of the utility model, a buckling part lapped with the silica gel sheet is arranged on the inner wall of one side of the inner part of the installation sleeve far away from the hinged point of the silica gel sheet.
As a further improvement of the utility model, the detection box body comprises a gas connecting port connected with the hose, a first air inlet is arranged in the gas connecting port, the first air inlet is connected with the detection block through a pipeline, a cavity at the bottom of the detection block is connected with the oxygen sensor, and the oxygen sensor is electrically connected with the system circuit board.
As a further improvement of the utility model, the cavity of the detection block is also connected with an electromagnetic valve through a pipeline, the electromagnetic valve is electrically connected with the system circuit board, and the electromagnetic valve is also provided with an exhaust pipeline communicated with the outside.
As a further improvement of the utility model, a second air inlet is also arranged in the air connecting port, the second air inlet is connected with the micro-pressure sensor through a pipeline, and the micro-pressure sensor is electrically connected with the system circuit board.
As a further improvement of the utility model, a heart rate interface is arranged on the system circuit board.
As a further improvement of the utility model, a USB interface is also arranged on the system circuit board.
As a further improvement, the breathing mask further comprises a helmet body which is covered on the head of a human body, and the breathing mask is connected with a plurality of elastic belts which are connected with the helmet body.
3. Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
(1) according to the respiratory gas detection device, the respiratory gas path adopts the flow dividing valve, so that the exhaled gas flows in a single direction, the re-reading breath of waste gas is reduced, and the detection precision of the exhaled gas is effectively improved; meanwhile, the phenomenon that the original waste gas remained in the installation sleeve and the hose enters the nose of a person again to influence the health of the person can be avoided.
(2) According to the respiratory gas detection device, the respiratory volume of a human body is obtained through the experimental calibration test of the gas flowmeter by combining the flow dividing ratio of the flow dividing valve and the air passage of the micro-pressure difference sensor, the use of the flowmeter is reduced, and the respiratory gas detection device is more convenient and lighter.
(3) According to the respiratory gas detection device, the micro differential pressure sensor detects the micro differential pressure of the human body exhaled gas, and the total amount of the human body exhaled gas is calculated through the experimental calibration test of the gas flowmeter by combining the flow dividing ratio of the flow dividing valve and the gas passage of the micro differential pressure sensor; the oxygen sensor collects the content information of oxygen in the exhaled air of the person to be detected and feeds the content information back to the system circuit board, so that the consumed oxygen amount value is comprehensively obtained. When a person inhales, the micro-pressure difference sensor controls the electromagnetic valve to be closed according to the change of the inspiratory reverse pressure of the human body, so that external fresh air is prevented from being led to the oxygen sensor through the electromagnetic valve, the detection result is prevented from being influenced, and the detection accuracy is effectively improved.
Drawings
FIG. 1 is a schematic diagram of a respiratory gas detection device according to the present invention;
FIG. 2 is a schematic view of the diverter valve of the present invention;
FIG. 3 is a schematic structural view of the cartridge body of the present invention.
The reference numbers in the figures are:
1. a respiratory mask; 11. an elastic band; 12. a helmet body; 2. a flow divider valve; 21. an air inlet pipe; 211. a one-way valve; 22. installing a sleeve; 221. a silica gel sheet; 3. a hose; 4. a detection box body; 41. a gas connection port; 42. a first air inlet; 43. a second air inlet; 44. a detection block; 45. an oxygen sensor; 46. a heart rate interface; 47. a USB interface; 48. a system circuit board; 49. an electromagnetic valve; 410. a micro-pressure sensor.
Detailed Description
For a further understanding of the utility model, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The present invention will be further described with reference to the following examples.
Example 1
Referring to fig. 1-3, the respiratory gas detecting device of the present embodiment includes a respiratory mask 1 and a detecting box body 4 for detecting the oxygen concentration in the expired air, the respiratory mask 1 and the detecting box body 4 are connected by a hose 3, and one side of the hose 3 close to the breathing mask 1 is provided with a shunt valve 2, the shunt valve 2 is positioned near the breathing mask 1, the flow divider 2 comprises a mounting sleeve 22 sleeved on the periphery of the hose 3, the mounting sleeve 22 is communicated with the hose 3, the outer side of the installation sleeve 22 is provided with a one-way valve 211 communicated with the inner side of the installation sleeve 22, the inner side of the installation sleeve 22 is radially provided with a silica gel sheet 221 matched with the installation sleeve 22, the silica gel sheet 221 is a circular sheet structure matched with the longitudinal section of the inner diameter of the installation sleeve 22, wherein one side of the silica gel piece 221 is hinged and fixed on the inner side wall of the installation sleeve 22, and the silica gel piece 221 is used for controlling the connection and disconnection of the silica gel piece 221 and the gas in the hose 3. The gas circuit of breathing in this embodiment adopts flow divider 2, makes the expired gas unidirectional flow, reduces the rereading of waste gas and breathes, effectively improves the detection precision of expired gas.
As shown in fig. 2, the diverter valve 2 of the present embodiment is integrally "T" shaped, the diverter valve 2 includes a mounting sleeve 22 and an air inlet pipe 21 which are vertically communicated, one end of the air inlet pipe 21 is communicated with the outside, the other end of the air inlet pipe 21 is communicated with the mounting sleeve 22, and a one-way valve 211 is disposed in the air inlet pipe 21 for allowing the outside air to enter the diverter valve 2. The inner wall of the side of the mounting sleeve 22 away from the hinge point of the silicone sheet 221 is provided with a buckling part 222 lapped with the silicone sheet 221, when the mounting sleeve is not used, the silicone sheet 221 is vertically lapped on one side of the buckling part 22, and at the moment, the buckling part and the air passage in the hose 3 are in a closed state. Specifically, in this embodiment, the lower end of the silicone sheet 221 is hinged to the inner wall of the mounting sleeve 22, the silicone sheet 221 is located on the right side of the air inlet tube 21, and the fastening portion 22 is located on the left side of the silicone sheet 221. When a human body exhales, gas enters the shunt valve 2 from the breathing mask 1, the silica gel sheet 221 rotates forwards under the action of the impact force of the airflow exhaled by the human body and falls down, and the gas exhaled by the human body enters the detection box body 4 from the hose 3 for detection; when a human body inhales, the flow rate of the left side of the silica gel sheet 221 is high, and according to the Bernoulli principle, the pressure on the left side of the silica gel sheet 221 is smaller than the pressure on the right side, so that the silica gel sheet is in a vertical state, the installation sleeve 22 and the air passage in the hose 3 are in a single-side closed state at the moment, and the phenomenon that waste gas originally remained in the installation sleeve 22 and the hose 3 enters the nose of a person again to affect the body health and a subsequent expiration measurement result is avoided.
As shown in fig. 3, in this embodiment, the detection box body 4 includes a gas connection port 41 connected to the flexible tube 3, a first air inlet 42 is disposed in the gas connection port 41, the first air inlet 42 is connected to a detection block 44 through a pipeline, a cavity at the bottom of the detection block 44 is connected to an oxygen sensor 45, the cavity at the bottom of the detection block 44 is communicated with a detection port of the oxygen sensor 45, the oxygen sensor 45 is electrically connected to a system circuit board 48, and the oxygen sensor 45 is used for detecting oxygen content in air and oxygen content in exhaled air of a human body. In this embodiment, the cavity of the detection block 44 is further connected to an electromagnetic valve 49 through a pipeline, the electromagnetic valve 49 is electrically connected to the system circuit board 48, the electromagnetic valve 49 is further provided with an exhaust pipeline communicated with the outside, and the exhaust pipeline is used for discharging the exhaust gas in the cavity of the detection block 44 to the outside, so as to avoid influencing the next detection result.
In this embodiment, a second air inlet hole 43 is further disposed in the air connector 41, the second air inlet hole 43 is connected to the micro-pressure sensor 410 through a pipeline, and the micro-pressure sensor 410 is electrically connected to the system circuit board 48. Through the air flue that combines the split ratio of flow divider 2 and minute-pressure difference sensor 410, through gas flowmeter's experiment calibration test, reachs human respiratory volume, reduces the use of flowmeter, and is more convenient light and handy.
During testing, the micro-pressure difference sensor 410 controls the electromagnetic valve 49 to be opened according to the pressure change of the exhaled air of a person, the exhaled air passes through the second air inlet hole 42, the detection block 44 and the oxygen sensor 45 in sequence, and finally the exhaust gas is exhausted to the outside through the exhaust pipeline of the electromagnetic valve 49. The micro differential pressure sensor 410 detects the micro differential pressure of the exhaled gas of the human body, and the total amount of the exhaled gas of the human body is calculated through the experimental calibration test of the gas flowmeter by combining the flow dividing ratio of the flow dividing valve 2 and the gas passage of the micro differential pressure sensor 410; the oxygen sensor 45 collects the content information of oxygen in the exhaled air of the person to be detected and feeds the content information back to the system circuit board 48, so that the consumed oxygen amount value is obtained comprehensively. When a person inhales, the micro-pressure difference sensor 410 controls the electromagnetic valve 49 to be closed according to the change of the inspiratory reverse pressure of the human body, so that external fresh air is prevented from being led to the oxygen sensor 45 through the electromagnetic valve 49, the detection result is prevented from being influenced, and the detection accuracy is effectively improved. Meanwhile, the signal acquisition system circuit board 48 can also transmit the oxygen content information to the processor through a transmission module, which may be a wireless transmission module, such as a bluetooth module, a WiFi module, etc.
In this embodiment, the heart rate interface 46 is disposed on the system circuit board 48, and the heart rate interface 46 is used for transmitting the heart rate of the human body to the system circuit board 48, and is one item of data required to be acquired. The system circuit board 48 is also provided with a USB interface 47, and data acquired by each sensor is connected with computer acquisition software through the USB interface 47 after signal processing is carried out on the system circuit board 48; and the client processes the data collected by the exhaled gas detection device and calculates according to a relevant formula of VO2 MAX.
The breathing mask comprises a helmet body 12 covering the head of a human body, wherein the breathing mask 1 is connected with a plurality of elastic belts 11, the elastic belts 11 are connected with the helmet body 12, and the connecting points of the elastic belts 11 and the helmet body 12 are symmetrically distributed on the periphery of the helmet body 12. In this embodiment, the detection box body 4 is a rectangular box structure, and the bottom of the detection box body 4 is provided with universal wheels. When waiting to detect the person and being in motion state, detection module concentrates on inside mobilizable detection box body 4, and detection module can not treat that the person that detects produces extra resistance and burden, is convenient for detect.
The examples described herein are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. A respiratory gas detection device, characterized by: including respirator (1) and detection box body (4) that are arranged in detecting expiration oxygen concentration, it is continuous through hose (3) between respirator (1) and the detection box body (4), and the one side that is close to respirator (1) on hose (3) is provided with flow divider (2), flow divider (2) establish at installation sleeve (22) of hose (3) periphery including the cover, installation sleeve (22) are linked together with hose (3), and installation sleeve (22) outside is provided with check valve (211) rather than inside intercommunication, installation sleeve (22) inboard along radially being provided with installation sleeve (22) matched with silica gel piece (221), one side articulated the fixing on installation sleeve (22) inside wall of silica gel piece (221).
2. The respiratory gas detection apparatus according to claim 1, wherein: the flow dividing valve (2) comprises a mounting sleeve (22) and an air inlet pipe (21) which are vertically communicated, one end of the air inlet pipe (21) is communicated with the outside, the other end of the air inlet pipe (21) is communicated with the mounting sleeve (22), and a one-way valve (211) is arranged in the air inlet pipe (21).
3. The respiratory gas detection apparatus according to claim 2, wherein: a buckling part (222) which is lapped with the silica gel sheet (221) is arranged on the inner wall of one side of the inner part of the mounting sleeve (22) far away from the hinged point of the silica gel sheet (221).
4. The respiratory gas detection apparatus according to claim 3, wherein: the detection box body (4) comprises a gas connecting port (41) connected with the hose (3), a first air inlet hole (42) is formed in the gas connecting port (41), the first air inlet hole (42) is connected with the detection block (44) through a pipeline, a cavity at the bottom of the detection block (44) is connected with the oxygen sensor (45), and the oxygen sensor (45) is electrically connected with the system circuit board (48).
5. The respiratory gas detection apparatus according to claim 4, wherein: the cavity of the detection block (44) is also connected with an electromagnetic valve (49) through a pipeline, the electromagnetic valve (49) is electrically connected with a system circuit board (48), and the electromagnetic valve (49) is also provided with an exhaust pipeline communicated with the outside.
6. The respiratory gas detection apparatus according to claim 5, wherein: a second air inlet (43) is also arranged in the air connecting port (41), the second air inlet (43) is connected with a micro-pressure sensor (410) through a pipeline, and the micro-pressure sensor (410) is electrically connected with a system circuit board (48).
7. The respiratory gas detection apparatus according to claim 6, wherein: the heart rate interface (46) is arranged on the system circuit board (48).
8. The respiratory gas detection apparatus according to claim 7, wherein: the system circuit board (48) is also provided with a USB interface (47).
9. The respiratory gas detection apparatus according to any one of claims 1 to 8, wherein: the breathing mask is characterized by further comprising a helmet body (12) used for covering the head of a human body, wherein the breathing mask (1) is connected with a plurality of elastic belts (11), and the elastic belts (11) are connected with the helmet body (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122958076.3U CN216877514U (en) | 2021-11-25 | 2021-11-25 | Respiratory gas detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122958076.3U CN216877514U (en) | 2021-11-25 | 2021-11-25 | Respiratory gas detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216877514U true CN216877514U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122958076.3U Active CN216877514U (en) | 2021-11-25 | 2021-11-25 | Respiratory gas detection device |
Country Status (1)
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|---|---|
| CN (1) | CN216877514U (en) |
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2021
- 2021-11-25 CN CN202122958076.3U patent/CN216877514U/en active Active
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