A spirometry training device
By employing an elastic adjustment column and a cone structure in the lung capacity training device, resistance adjustment and uniform airflow dispersion are achieved, solving the problem that existing devices cannot adapt to individual differences and improving training effectiveness and measurement accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIFANG JINGDAMING MEDICAL TECH CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-12
AI Technical Summary
Existing lung capacity training devices lack flexible resistance adjustment capabilities and cannot dynamically adjust intensity based on individual characteristics, making it difficult to match the personalized needs of different users with training intensity.
By utilizing the threaded connection between the elastic adjustment column and the threaded cylinder, the position of the compression spring can be changed by rotating the elastic adjustment column, thereby adjusting the deformation of the elastic diaphragm and thus changing the pressure required for the airflow to break through the flow restriction plate, achieving resistance regulation. Furthermore, the airflow is evenly dispersed through the cone and through-plate structure, ensuring the accuracy of the measurement.
It enables personalized lung capacity training, meeting the diverse needs of different users, while improving the accuracy of measurement results and the comfort of training.
Smart Images

Figure CN224345365U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of physical fitness measurement equipment technology, and in particular to a lung capacity training device. Background Technology
[0002] Lung capacity training is a process of strengthening respiratory muscles and increasing lung capacity through scientific breathing exercises. Daily practice can include diaphragmatic breathing: inhale, expanding the abdomen, and exhale, slowly contracting it, repeating several times a day to improve breathing efficiency. Fun exercises like blowing up balloons or candles can also enhance lung endurance by controlling airflow. Aerobic exercises such as swimming and running can dynamically train breathing rhythm and help improve lung capacity. Training should be gradual, avoiding excessive exertion; long-term adherence can improve cardiopulmonary function and make breathing smoother.
[0003] Current mainstream lung capacity training devices generally employ an incremental resistance mode to increase training intensity, but they have significant limitations in their resistance adjustment mechanisms, lacking flexibility and adaptability. In actual use, users vary in age, physical condition, respiratory muscle strength, and other physiological conditions, and their training goals also differ. Only by dynamically adjusting the intensity based on individual characteristics can training needs be accurately matched to achieve the desired training effect. However, existing devices lack this intelligent adjustment capability, making it difficult to tailor the training intensity to the personalized needs of different users, thus hindering the effective improvement of lung capacity training results. Utility Model Content
[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a lung capacity training device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a lung capacity training device, including a protective cover, one end of which is connected to a pressurization training mechanism, the pressurization training mechanism including a cylinder, a flow limiting plate and a positioning plate, the outer wall of the cylinder being connected to a detection port, a top rod being slidably connected at the center of the positioning plate, one end of the top rod being fixedly connected to a plug, a conical hole being opened on the surface of the flow limiting plate, the other end of the top rod being fixedly connected to an elastic diaphragm, the elastic diaphragm being fixedly connected to the inner wall of the cylinder, one end of the cylinder being fixedly connected to a threaded cylinder, the inner wall of the threaded cylinder being threadedly connected to an elastic adjustment column, and a compression spring being fixedly connected between the elastic adjustment column and the elastic diaphragm.
[0006] Preferably, a through plate is fixedly connected to the inner wall of the cylinder, and a cone is fixedly connected to the side of the through plate.
[0007] Preferably, both the through plate and the positioning plate have through holes on their surfaces.
[0008] Preferably, the inner wall of the protective cover is fixedly connected to a bite plate, and a sponge pad is embedded in the surface of the bite plate.
[0009] Preferably, the cylinder body is threadedly connected to the protective cover, and the threaded connection is wrapped with PTFE tape.
[0010] Preferably, one end of the cylinder is configured as a conical structure, and the detection port is installed between the flow limiting plate and the positioning plate.
[0011] Preferably, the outer end of the elastic adjustment column is provided with a pin, which controls the rotation of the elastic adjustment column.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] 1. In this invention, by rotating the elastic adjustment column, the position of the other end of the compression spring is changed through its threaded connection with the threaded cylinder. The compression or extension state of the spring changes, and the corresponding elastic force also changes. This elastic force acts on the elastic diaphragm, adjusting its deformation. The elastic diaphragm controls the sealing force of the plug on the conical hole of the flow-limiting plate through the push rod, thereby changing the pressure required for the airflow to break through the flow-limiting plate. It can adjust the resistance as needed according to individual circumstances, achieving personalized lung capacity training and fully meeting the diverse training intensity needs of different users.
[0014] 2. In this invention, the support structure located below the cylinder effectively supports most of the device's weight, reducing the burden on the bite plate and making the measurement process more comfortable and stable. Secondly, the cone inside the cylinder evenly disperses the user's exhaled airflow, guiding it through the holes around the cone and preventing it from directly impacting the conical holes of the flow-limiting plate and instantly dislodging the plug. Instead, the airflow gradually pushes open the plug under pressure in a stable state. This method effectively avoids measurement errors caused by unstable airflow, ensuring the accuracy of the measurement results and providing users with reliable lung capacity data for reference. Attached Figure Description
[0015] Figure 1 This utility model provides a three-dimensional structural diagram of a lung capacity training device;
[0016] Figure 2 This utility model provides a schematic diagram of the internal structure of a lung capacity training device. Figure 1 ;
[0017] Figure 3 This utility model provides a schematic diagram of the internal structure of a lung capacity training device. Figure 2 ;
[0018] Figure 4 A simplified diagram illustrating the working principle of a lung capacity training device is provided for this utility model.
[0019] Legend: 1. Protective cover; 2. Engaging plate; 20. Sponge pad; 3. Pressure training mechanism; 31. Cylinder; 32. Cone; 33. Through plate; 34. Flow limiting plate; 35. Positioning plate; 4. Detection port; 5. Elastic adjustment column; 6. Threaded cylinder; 7. Compression spring; 8. Elastic diaphragm; 9. Top rod; 90. Plug. Detailed Implementation
[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0022] Example 1: As Figures 1-4 As shown, this utility model provides a lung capacity training device, including a protective cover 1. One end of the protective cover 1 is connected to a pressurization training mechanism 3. The pressurization training mechanism 3 includes a cylinder 31, a flow limiting plate 34, and a positioning plate 35. The outer wall of the cylinder 31 is connected to a detection port 4. A push rod 9 is slidably connected to the center of the positioning plate 35. One end of the push rod 9 is fixedly connected to a plug 90. A conical hole is opened on the surface of the flow limiting plate 34. The other end of the push rod 9 is fixedly connected to an elastic diaphragm 8. The elastic diaphragm 8 is fixedly connected to the inner wall of the cylinder 31. One end of the cylinder 31 is fixedly connected to a threaded cylinder 6. The inner wall of the threaded cylinder 6 is threadedly connected to a spring adjustment column 5. A compression spring 7 is fixedly connected between the spring adjustment column 5 and the elastic diaphragm 8.
[0023] The specific settings and functions of this embodiment are described below. The shape of the protective cover 1 is designed to fit the mouth shape of the user being tested, ensuring that the protective cover 1 completely fits around the mouth during measurement. The pressure-boosting training mechanism 3 is added to the tail end of the protective cover 1. The pressure-boosting training mechanism 3 can increase the resistance to breathing and increase the training intensity. The principle is as follows: the exhaled airflow enters the cylinder 31 through the opening of the protective cover 1. The airflow gathers at the flow-limiting plate 34. The other end of the flow-limiting plate 34 is blocked by the plug 90. The plug 90 is compressed by the elastic diaphragm 8 through the push rod 9, making the plug 90 tightly fit against the conical opening of the flow-limiting plate 34. The compression force of the elastic diaphragm 8 increases the pressure of the airflow breaking through the flow-limiting plate 34, thereby increasing the training intensity. Only when the lung capacity is sufficient, the pressure counteracts the elastic force provided by the elastic diaphragm 8 and pushes the plug 90 outward, allowing it to enter the cavity on the other side. Finally, the measurement result is obtained by receiving the sensor detection through the detection port 4. Refer to the attached document. Figure 4In the diagram, solid arrows represent the direction of airflow, and hollow arrows represent the direction of resistance.
[0024] The elastic force of the elastic diaphragm 8 is determined by the amount of deformation. The amount of deformation of the elastic diaphragm 8 is controlled by the compression spring 7. By adjusting the elastic force adjusting column 5 at the outer end of the cylinder 31, the position of the other end of the compression spring 7 can be controlled, thereby changing the elastic force of the compression spring 7 and ultimately changing the amount of deformation of the elastic diaphragm 8, thus realizing the effect of resistance regulation for training lung capacity.
[0025] Example 2: Figure 2 and Figure 3 As shown, a through plate 33 is fixedly connected to the inner wall of the cylinder 31, and a cone 32 is fixedly connected to the side of the through plate 33. Both the through plate 33 and the positioning plate 35 have through holes on their surfaces. A snapping plate 2 is fixedly connected to the inner wall of the protective cover 1, and a sponge pad 20 is embedded in the surface of the snapping plate 2. The cylinder 31 is threadedly connected to the protective cover 1, and PTFE tape is wrapped around the threaded connection. One end of the cylinder 31 is designed as a cone shape, and the detection port 4 is installed between the flow limiting plate 34 and the positioning plate 35. A pin is provided at the outer end of the elastic adjusting column 5, and the rotation of the elastic adjusting column 5 is controlled by the pin.
[0026] The overall effect of this embodiment is that during testing, the user's upper and lower teeth bite on both sides of the bite plate 2, which not only provides fixation but also leaves gaps, allowing airflow to pass smoothly through the teeth to the cylinder 31. To reduce the burden on the bite plate 2, a support is set at the bottom of the cylinder 31 to support most of the weight of the device. A cone 32 is set at the inner end of the cylinder 31 to separate the airflow in all directions, allowing the airflow to pass through the through holes around the through plate 33 and finally push open the stopper 90 through the cone hole in the middle of the flow limiting plate 34. This prevents the airflow blown by the user from directly hitting the cone hole of the flow limiting plate 34 and pushing open the stopper 90. After the airflow stabilizes, pressure is used to push open the stopper 90. This testing method obtains more accurate test results and can also increase the resistance to achieve satisfactory training intensity.
[0027] The device's operation and working principle are as follows: The protective cover 1 fits snugly against the mouthpiece, and its tail end is connected to the pressurization training mechanism 3. This mechanism includes components such as the cylinder 31 and the flow restrictor 34. Exhaled airflow enters the cylinder 31 through the protective cover 1. The plug 90, compressed by the elastic diaphragm 8, blocks the cone hole of the flow restrictor 34. Sufficient lung capacity is required to push the plug 90 open. Measurement results are obtained through the detection port 4. The deformation of the elastic diaphragm 8 can be changed by adjusting the elastic adjustment column 5 to adjust the training resistance. At the same time, the cone 32 is fixed to the inner wall of the cylinder 31. The inner wall of the protective cover 1 is provided with a biting plate 2 and a sponge pad 20 is embedded. The cylinder 31 is threadedly connected to the protective cover 1. The outer end of the elastic adjustment column 5 has a pin. During testing, the user bites the biting plate 2. A support is provided below the cylinder 31. The cone 32 disperses the airflow and, after stabilization, pushes open the plug 90. The test results are more accurate, and the training intensity is more ideal.
[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A lung capacity training device, comprising a protective cover (1), one end of which is connected to a pressurization training mechanism (3), characterized in that: The pressurization training mechanism (3) includes a cylinder (31), a flow limiting plate (34) and a positioning plate (35). The outer wall of the cylinder (31) is connected to a detection port (4). A push rod (9) is slidably connected at the center of the positioning plate (35). A plug (90) is fixedly connected to one end of the push rod (9). A conical hole is opened on the surface of the flow limiting plate (34). An elastic diaphragm (8) is fixedly connected to the other end of the push rod (9). The elastic diaphragm (8) is fixedly connected to the inner wall of the cylinder (31). A threaded cylinder (6) is fixedly connected to one end of the cylinder (31). An elastic adjusting column (5) is threadedly connected to the inner wall of the threaded cylinder (6). A compression spring (7) is fixedly connected between the elastic adjusting column (5) and the elastic diaphragm (8).
2. The lung capacity training device according to claim 1, characterized in that: A through plate (33) is fixedly connected to the inner wall of the cylinder (31), and a cone (32) is fixedly connected to the side of the through plate (33).
3. The lung capacity training device according to claim 2, characterized in that: Both the through plate (33) and the positioning plate (35) have through holes on their surfaces.
4. The lung capacity training device according to claim 1, characterized in that: The inner wall of the protective cover (1) is fixedly connected to a bite plate (2), and a sponge pad (20) is embedded in the surface of the bite plate (2).
5. A lung capacity training device according to claim 1, characterized in that: The cylinder (31) is threadedly connected to the protective cover (1), and the threaded connection is wrapped with PTFE tape.
6. The lung capacity training device according to claim 1, characterized in that: One end of the cylinder (31) is set as a conical structure, and the detection port (4) is installed between the flow limiting plate (34) and the positioning plate (35).
7. The lung capacity training device according to claim 1, characterized in that: The outer end of the elastic adjustment column (5) is provided with a pin, which controls the rotation of the elastic adjustment column (5).