Turbine type human body breathing gas detection device

Abstract

The utility model discloses a turbo type human body breathing gas detection device which comprises a photoelectric flow velocity detection unit, the photoelectric flow velocity detection unit comprises an installation cylinder body used for installing a turbine and a fixing head sleeve used for fixing the turbine, and the fixing head sleeve is detachably connected with the installation cylinder body. The turbine is inserted into an inner cavity of the mounting barrel, the turbine comprises a cylindrical pipe barrel made of a light-transmitting material, a rotor with a radian is arranged in the pipe barrel, and at least one group of photoelectric elements capable of blocking signal transmission by the rotor are arranged on the barrel wall of the mounting barrel. Each group of photoelectric elements comprises a photoelectric tube used for transmitting signals and a photoelectric tube used for receiving signals, and a processor, a temperature and humidity sensor and an atmospheric pressure sensor are further arranged on the mounting barrel. The device is simple in structure, small in size and capable of accurately measuring the flow / flow velocity of the breathing gas of the human body.

Description

Technical Field

[0001] The utility model relates to the technical field of human respiratory gas flow / flow velocity detection, in particular to a turbine type human respiratory gas detection device. Background Art

[0002] In lung function testing, exercise cardiopulmonary testing or respiratory monitoring, the flow rate or flow of human respiratory gas needs to be collected to determine the lung function status of the human body. Traditional flow measurement has problems such as poor accuracy, large size, heavy weight, high price, and inconvenient cleaning and disinfection.

[0003] To solve the above problems, our company applied for a patent with authorization announcement number "CN208988881U" in 2018. The patent discloses "a pressure differential generator for lung function assessment" and discloses in the specification that the pressure differential generator can be used in conjunction with a pressure differential detection unit to detect the flow rate / flow velocity of human respiratory gas. However, the application still has the following problems: there is no effective real-time compensation for the impact of changes in ambient temperature, humidity and air pressure; the structure of the pressure differential generator is still relatively complex. Utility Model Content

[0004] In view of the above technical problems in the related art, the utility model provides a turbine type human respiratory gas detection device, which can solve the above problems.

[0005] In order to achieve the above technical purpose, the technical solution of the utility model is implemented as follows:

[0006] A turbine-type human respiratory gas detection device includes a photoelectric current velocity detection unit, the photoelectric current velocity detection unit includes a mounting cylinder for mounting a turbine and a fixed head cover for fixing the turbine, the fixed head cover is detachably connected to the mounting cylinder, the turbine is plugged into the inner cavity of the mounting cylinder, the turbine includes a cylindrical tube made of a light-transmitting material, a rotor with an arc is arranged in the tube, at least one group of photoelectric elements whose signal transmission can be blocked by the rotor is arranged on the wall of the mounting cylinder, each group of the photoelectric elements includes a photoelectric tube for transmitting signals and a photoelectric tube for receiving signals, the mounting cylinder is also provided with a processor, a temperature and humidity sensor, and an atmospheric pressure sensor, the temperature and humidity sensor, the atmospheric pressure sensor, and the photoelectric elements are all electrically connected to the processor.

[0007] Furthermore, a clamping block is provided on the installation cylinder, and a clamping groove matched with the clamping block is provided on the fixed head cover.

[0008] Furthermore, the two photoelectric tubes of each group of the photoelectric elements are symmetrical about the center of the rotor.

[0009] Furthermore, one end of the tube passes through the fixed head cover, and a plurality of material-missing parts are evenly arranged on the outer wall of the passing end of the tube. The fixed head cover is provided with a positioning block adapted to the material-missing part, and the outer wall of the fixed head cover is provided with anti-slip grooves.

[0010] Furthermore, a filter screen is provided at one end of the tube cavity away from the rotor.

[0011] Furthermore, the mounting cylinder is also provided with a wireless transmission module and a signal line connector, both of which are electrically connected to the processor, and the photocurrent velocity detection unit is communicatively connected to the detection terminal via the wireless transmission module or the signal line connector.

[0012] The beneficial effects of the utility model are as follows: the device of the application has a simple structure and a compact size, and can accurately measure the flow rate / flow velocity of human respiratory gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] The utility model is further described in detail below with reference to the accompanying drawings.

[0015] Figure 1 It is a structural schematic diagram of a turbine-type human respiratory gas detection device according to an embodiment of the utility model;

[0016] Figure 2 It is a schematic structural diagram of a turbine-type human respiratory gas detection device according to an embodiment of the utility model when the fixed head cover is disassembled;

[0017] Figure 3 It is a simplified structural diagram of a cross section of a turbine-type human respiratory gas detection device according to an embodiment of the utility model;

[0018] Figure 4 It is a schematic diagram of the connection principle of the electronic components of the photocurrent velocity detection unit described in the embodiment of the utility model.

[0019] In the figure:

[0020] 100, photocurrent velocity detection unit; 110, mounting cylinder; 111, signal line connector; 120, fixed head cover; 131, transmitting tube 1; 132, receiving tube 1; 133, transmitting tube 2; 134, receiving tube 2; 200, turbine; 210, rotor; 220, missing material part. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0022] like Figure 1-4 As shown, according to the utility model, a turbine-type human respiratory gas detection device is disclosed, including a photoelectric current velocity detection unit 100, the photoelectric current velocity detection unit 100 includes a mounting cylinder 110 for mounting a turbine 200 and a fixed head cover 120 for fixing the turbine 200, the fixed head cover 120 is detachably connected to the mounting cylinder 110, the turbine 200 is plugged into the inner cavity of the mounting cylinder 110, the turbine 200 includes a cylindrical tube made of a light-transmitting material, a rotor 210 with an arc is arranged in the tube, at least one group of photoelectric elements whose signal transmission can be blocked by the rotor 210 is arranged on the wall of the mounting cylinder 110, each group of the photoelectric elements includes a photoelectric tube for transmitting signals and a photoelectric tube for receiving signals, the mounting cylinder 110 is also provided with a processor, a temperature and humidity sensor, and an atmospheric pressure sensor, the temperature and humidity sensor, the atmospheric pressure sensor, and the photoelectric elements are all electrically connected to the processor.

[0023] Embodiment 1:

[0024] like Figure 2 As shown, the turbine 200 is inserted into the inner cavity of the mounting cylinder 110, and then the fixed head cover 120 is covered. The mounting cylinder 110 and the fixed head cover 120 are connected together by a block and a slot, so that the turbine 200 is fixed and locked, and one end of the turbine 200 tube passes through the fixed head cover 120. As long as the fixed head cover 120 is unscrewed, the turbine 200 can be easily disassembled. The turbine 200 is molded, light in weight, high in batch consistency, and high in precision. In this application, the turbine 200 can be used as a disposable accessory, which is detachable and disposable to avoid cross infection and is convenient and easy to use (disinfection-free). At the same time, it can be disassembled and reused for easy disinfection.

[0025] Embodiment 2:

[0026] like Figure 3As shown, the internal structure of the photocurrent velocity detection unit 100 has two pairs of transmitting and receiving photoelectric tubes (respectively, transmitting tube 1 131 and receiving tube 1 132, transmitting tube 2 133 and receiving tube 2 134). Each pair of transmitting and receiving diodes is located on a straight line passing through the center of the circle. When the rotor 210 rotates, its blades block the light between the transmitting and receiving photoelectric tubes, thereby generating an electrical pulse signal. The gas breathed by the patient flows through the turbine, driving the turbine blades to rotate. The blades rotate one circle to generate a pulse signal, and the number of circles the blades rotate is proportional to the flow rate. The processor obtains the flow rate by counting the number of pulses per unit time, and obtains the flow rate by integrating the flow rate. When inhaling, the rotor rotates clockwise, generating a pulse of positive voltage. When exhaling, the rotor rotates counterclockwise, generating a pulse of negative voltage. The number of positive and negative changes of the pulse is judged to calculate the respiratory frequency. The more pairs of transmitting and receiving photoelectric tubes there are, the higher the measurement accuracy.

[0027] Embodiment three:

[0028] The temperature and humidity sensor and the atmospheric pressure sensor can measure the environmental parameters in real time and transmit the measurement results to the processor. The processor compensates and standardizes the calculated flow rate and flow rate for environmental parameters.

[0029] During specific use, a side port on the mounting cylinder 110 away from the fixed head cover 120 is mounted on the mask, and the mask is worn on the face of a person to breathe air through the side port.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A turbine type human breathing gas detection device, characterized in that: The invention comprises a photoelectric current velocity detection unit (100), the photoelectric current velocity detection unit (100) comprising a mounting cylinder (110) for mounting a turbine (200) and a fixing head cover (120) for fixing the turbine (200), the fixing head cover (120) being detachably connected to the mounting cylinder (110), the turbine (200) being plugged into the inner cavity of the mounting cylinder (110), the turbine (200) comprising a cylindrical tube made of a light-transmitting material, a rotor (210) with an arc being arranged in the tube, at least one group of photoelectric elements whose signal transmission can be blocked by the rotor (210) being arranged on the cylinder wall of the mounting cylinder (110), each group of the photoelectric elements comprising a photoelectric tube for transmitting a signal and a photoelectric tube for receiving a signal, the mounting cylinder (110) also being provided with a processor, a temperature and humidity sensor, and an atmospheric pressure sensor, the temperature and humidity sensor, the atmospheric pressure sensor, and the photoelectric elements being all electrically connected to the processor.

2. A turbine type human breathing gas detection device according to claim 1, characterized in that: A clamping block is provided on the installation cylinder (110), and a clamping groove matching the clamping block is provided on the fixed head cover (120).

3. A turbine type human breathing gas detection device according to claim 1, characterized in that: The two photoelectric tubes of each group of photoelectric elements are symmetrical about the center of the rotor.

4. A turbine type human breathing gas detection device according to claim 1, characterized in that: One end of the tube passes through the fixed head cover (120), a plurality of material-missing portions (220) are evenly arranged on the outer wall of the passing end of the tube, a positioning block matching the material-missing portions (220) is arranged on the fixed head cover (120), and anti-slip grooves are arranged on the outer wall of the fixed head cover (120).

5. A turbine type human breathing gas detection device according to claim 1, characterized in that: A filter screen is provided at one end of the tube cavity away from the rotor (210).

6. A turbine type human breathing gas detection device according to claim 1, characterized in that: The mounting cylinder (110) is also provided with a wireless transmission module and a signal line connector (111), the wireless transmission module and the signal line connector (111) are both electrically connected to the processor, and the photocurrent velocity detection unit (100) is communicatively connected to the detection terminal via the wireless transmission module or the signal line connector (111).

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