Vital capacity detection module of body testing robot

Abstract

The utility model relates to a body testing robot vital capacity detection module which structurally comprises a grip, a first connecting pipe, a detection block, a second connecting pipe and an air pressure detection module, one end of the grip is provided with an inserting port used for inserting a disposable blowing nozzle, the other end of the grip is connected with the first connecting pipe, and the tail end of the first connecting pipe is directly or indirectly connected with the detection block. A full-length first channel with the constant diameter is formed in the detection block, a second channel perpendicular to the first channel is formed in the detection block, one end of the second channel is communicated with the first channel, the other end of the second channel extends out of the detection block and is communicated with a second connecting pipe, and the second connecting pipe is connected with an air pressure detection module; the air pressure detection module is used for detecting air pressure at the communication position of the first channel and the second channel. The device is simple in structure, convenient to manufacture and machine, low in cost and high in modularization degree, and can be used as an independent module to be additionally arranged on the body testing robot so that the body testing robot can have the vital capacity testing function.

Description

Technical Field

[0001] This utility model relates to a body measurement device, specifically a body measurement robot lung capacity detection module. Background Technology

[0002] School physical education tests include a variety of events. Due to the large number of events and participants, the demand for intelligent physical education testing monitoring equipment (physical education testing robots) is increasing. With technological advancements, physical education testing robots are gradually becoming more multifunctional. They use cameras to capture real-time motion videos of physical activity and, using visual algorithms and other technologies, along with appropriate venues and equipment, can complete tests for events such as long jump, pull-ups, forward bends, rope skipping, soccer, basketball, and volleyball. However, for lung capacity testing, a specialized lung capacity testing device is still required.

[0003] For example, CN219763327U discloses a lung capacity testing device that can perform facial recognition using a camera and a facial recognition module, detect the pressure inside the blowing body using a pressure sensor, and convert the detected pressure inside the blowing body into volume, i.e., lung capacity. The lung capacity test results are displayed through a display module. This device is a dedicated lung capacity testing equipment, which can only perform lung capacity testing, occupies a large volume, has a single function, and has a high equipment cost.

[0004] Therefore, there is an urgent need for a lung capacity detection module for a body fitness testing robot, which can be installed on the body fitness testing robot as needed to enable it to have lung capacity detection function, without the need to set up a separate dedicated lung capacity testing device, thereby reducing costs. Utility Model Content

[0005] The purpose of this invention is to provide a lung capacity testing module for a body measurement robot to solve the problem of high cost of existing lung capacity testing devices.

[0006] This invention is implemented as follows: A lung capacity detection module for a body measurement robot includes a handle, a first connecting tube, a detection block, a second connecting tube, and a pressure detection module. One end of the handle has an interface for inserting a disposable mouthpiece, and the other end is connected to the first connecting tube. The end of the first connecting tube is directly or indirectly connected to the detection block. A continuous first channel with a constant diameter is formed inside the detection block. A second channel perpendicular to the first channel is formed inside the detection block. One end of the second channel is connected to the first channel, and the other end extends outside the detection block and is connected to the second connecting tube. The second connecting tube is connected to the pressure detection module, which is used to detect the gas pressure at the connection between the first channel and the second channel.

[0007] As a further improvement to the lung capacity detection module of the body measurement robot of this utility model, the detection block has a cuboid structure, and the direction of the first channel is consistent with the length direction of the detection block.

[0008] As a further improvement to the lung capacity detection module of the body measurement robot of this utility model, the second channel is connected to the middle of the first channel.

[0009] As a further improvement to the lung capacity detection module of the body measurement robot of this utility model, the air pressure detection module includes an air pressure sensor and a circuit board. The circuit board is disposed on the detection block, and the air pressure sensor is disposed on the circuit board and electrically connected to the circuit board.

[0010] As a further improvement to the lung capacity detection module of the body measurement robot of this utility model, an air filter is provided between the detection block and the first connecting tube.

[0011] As a further improvement to the lung capacity detection module of the body measurement robot of this utility model, the diameter of the first channel is 2~8mm.

[0012] As a further improvement to the lung capacity detection module of the body measurement robot of this utility model, the diameter of the second channel is smaller than that of the first channel.

[0013] As a further improvement to the lung capacity detection module of the body measurement robot of this utility model, a horn-shaped structure is provided at the end port of the first channel.

[0014] This utility model has a simple structure, is easy to manufacture and process, has low cost, and is highly modular. It can be added as a separate module to a body measurement robot to enable it to have a lung capacity detection function. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the present invention.

[0016] Figure 2 This is a cross-sectional view of the detection block.

[0017] In the diagram: 1. Detection block; 2. Air pressure detection module; 3. Handle; 4. First connecting pipe; 5. Air filter; 6. Second connecting pipe; 7. Bolt; 1-1. First channel; 1-2. Second channel; 1-3. Horn structure; 1-4. Internal threaded hole; 1-5. Insertion hole; 2-1. Pressure sensor; 2-2. Circuit board; 3-1. Plug interface. Detailed Implementation

[0018] The present invention will now be described in conjunction with the accompanying drawings.

[0019] like Figure 1 , Figure 2As shown, this utility model is a lung capacity detection module for a body measurement robot. Its structure mainly includes a handle 3, a first connecting tube 4, a detection block 1, a second connecting tube 6, and an air pressure detection module 2.

[0020] This utility model is generally used in body measurement robots. The handle 3 and the first connecting pipe 4 are located outside the body measurement robot shell, while the detection block 1, the second connecting pipe 6 and the air pressure detection module 2 are located inside the body measurement robot shell.

[0021] The handle 3 has a hollow internal structure. An insertion interface 3-1 is provided at the upper end of the handle 3. The insertion interface 3-1 is used to insert a disposable mouthpiece. The handle 3 body can be hung on the hanging structure on the outside of the body testing robot shell.

[0022] The first connecting tube 4 connects the lower port of the handle 3 to the detection block 1, and is used to deliver air from the disposable mouthpiece to the detection block 1. The first connecting tube 4 is a flexible tube, and a flexible metal protective sleeve is fitted over the outside of the flexible tube.

[0023] The detection block 1 has a first channel 1-1 for airflow. The first channel 1-1 is a long straight hole with a constant diameter, penetrating the detection block 1. One end of the first channel 1-1 is located on one side surface of the detection block 1, and the other end is located on the opposite side surface. One end of the first channel 1-1 is directly or indirectly connected to the first connecting pipe 4, and the other end is open to the atmosphere. All air blown in by the test subject through a disposable mouthpiece will be discharged into the atmosphere through the first channel 1-1. Therefore, the test subject's lung capacity can be obtained by detecting the airflow rate within the first channel 1-1.

[0024] Since the diameter of the first channel 1-1 is known, its cross-sectional area can be directly calculated. To obtain the gas flow rate through the first channel 1-1, based on the relationship between flow rate, velocity, and time, it is necessary to first obtain the flow rate at each instant. According to Bernoulli's equation, when other factors are not considered, the velocity within the channel is inversely proportional to the static pressure energy (pressure). Therefore, it is necessary to first obtain the pressure within the first channel 1-1. After obtaining the pressure at each instant, the velocity within the first channel 1-1 at each instant can be calculated, and thus the gas flow rate through the first channel 1-1 over a period of time can be calculated, thereby obtaining the test subject's lung capacity.

[0025] The air pressure detection module 2 is used to detect air pressure. In order for the air pressure detection module 2 to detect the pressure in the first channel 1-1, a second channel 1-2 is provided on the detection block 1. The second channel 1-2 is perpendicular to the first channel 1-1. One end of the second channel 1-2 is connected to the first channel 1-1, and the other end extends to the outside of the detection block 1 and is connected to the second connecting pipe 6. The second connecting pipe 6 is connected to the air pressure detection module 2.

[0026] The air pressure detection module 2 includes an air pressure sensor and a circuit board 2-2. The circuit board 2-2 is mounted on the detection block 1, and the air pressure sensor is mounted on and electrically connected to the circuit board 2-2. The second connecting pipe 6 is connected to the air pressure sensor. The air pressure sensor can detect the gas pressure inside the first channel 1-1 and transmit the detection signal to the circuit board 2-2 for storage, calculation, and other processing.

[0027] The circuit board 2-2 is equipped with a port for connecting to the body measurement robot, enabling power supply to the air pressure detection module 2 and data transmission between the air pressure detection module 2 and the body measurement robot.

[0028] Among them, the detection block 1 has a cuboid structure, the direction of the first channel 1-1 is consistent with the length direction of the detection block 1, and the first channel 1-1 is located at the center of the cuboid.

[0029] The first channel 1-1 has a certain length, and the second channel 1-2 is connected to the middle of the first channel 1-1, which can ensure that the measured pressure is the pressure after the airflow stabilizes in the first channel 1-1, thus improving the accuracy of the detection.

[0030] The material of the detection block 1 can be plastic, resin, acrylic, etc., which are easy to obtain, low in cost, and easy to process.

[0031] Both the first channel 1-1 and the second channel 1-2 are long straight holes, which can be obtained by drilling with drilling equipment during processing, resulting in low processing costs.

[0032] An internal threaded hole 1-4 is provided at the end of the first channel 1-1. The internal threaded hole 1-4 is used to connect to the connector of the first connecting pipe 4 or the air filter 5.

[0033] A insertion hole 1-5 is provided at the end of the second channel 1-2. The diameter of the insertion hole 1-5 is larger than that of the second channel 1-2. The insertion hole 1-5 is used to insert and fix the end of the second connecting pipe 6.

[0034] The diameter of the first channel 1-1 is smaller than that of the inner diameter of the first connecting tube 4. When the gas exhaled by the test subject enters the first channel 1-1 from the first connecting tube 4, a relatively stable airflow can be generated, so that the pressure sensor 2-1 can measure the pressure.

[0035] Specifically, the diameter of the first channel 1-1 is generally 2-8 mm, and should not be too small or too large. When the diameter of the first channel 1-1 is too small, it will create greater resistance to the test subject's exhalation, thus affecting the test subject's true lung capacity. When the diameter of the first channel 1-1 is too large, the air exhaled by the test subject will pass through the first channel 1-1 and be discharged into the outside air too quickly. The measurement time is too short and the airflow is unstable, which also affects the subsequent accurate measurement of the test subject's lung capacity.

[0036] Furthermore, a flared structure 1-3 is provided at the end port of the first channel 1-1 to facilitate the discharge of gas from the end port of the first channel 1-1.

[0037] In one embodiment of this invention, an air filter 5 is provided between the detection block 1 and the first connecting pipe 4. The air filter 5 is a vacuum pump air filter 5, which can effectively separate moisture from the gas. An air filter 5 with a bottom drainage device is selected, specifically an AF2000 type air filter. When performing lung capacity tests on a large number of test subjects, moisture in the exhaled gas is separated. When a large amount of separated moisture accumulates, it can be drained through the bottom drainage device to prevent moisture in the exhaled gas from condensing into water droplets and affecting the accuracy of the lung capacity test.

[0038] Circuit board 2-2 is fixed to the surface of detection block 1 by screw 7. Detection block 1 is connected to air filter 5. A connecting plate is provided on the upper part of air filter 5. The air filter 5 can be fixed in the body testing robot shell by the connecting plate, so that detection block 1 and air pressure detection module 2 are fixed together in the body testing robot.

Claims

1. A lung capacity detection module for a body composition analysis robot, characterized in that, The device includes a handle, a first connecting tube, a detection block, a second connecting tube, and a gas pressure detection module. One end of the handle has an interface for inserting a disposable mouthpiece, and the other end is connected to the first connecting tube. The end of the first connecting tube is directly or indirectly connected to the detection block. A continuous first channel with a constant diameter is formed inside the detection block, and a second channel perpendicular to the first channel is formed inside the detection block. One end of the second channel is connected to the first channel, and the other end extends outside the detection block and is connected to the second connecting tube. The second connecting tube is connected to the gas pressure detection module, which is used to detect the gas pressure at the connection between the first channel and the second channel.

2. The lung capacity detection module of the body measurement robot according to claim 1, characterized in that, The detection block has a cuboid structure, and the direction of the first channel is consistent with the length direction of the detection block.

3. The lung capacity detection module of the body measurement robot according to claim 1, characterized in that, The second channel is connected to the middle of the first channel.

4. The lung capacity detection module of the body measurement robot according to claim 1, characterized in that, The air pressure detection module includes an air pressure sensor and a circuit board. The circuit board is disposed on the detection block, and the air pressure sensor is disposed on the circuit board and electrically connected to the circuit board.

5. The lung capacity detection module of the body measurement robot according to claim 1, characterized in that, An air filter is provided between the detection block and the first connecting pipe.

6. The lung capacity detection module of the body measurement robot according to claim 1, characterized in that, The diameter of the first channel is 2~8mm.

7. The lung capacity detection module of the body measurement robot according to claim 1, characterized in that, The diameter of the second channel is smaller than that of the first channel.

8. The lung capacity detection module of the body measurement robot according to claim 1, characterized in that, A flared structure is provided at the end port of the first channel.

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