A lung function testing device

Abstract

This utility model relates to the field of lung function testing technology and discloses a lung function testing device, including a testing device body. An air inlet pipe is threaded onto the right side of the testing device body. A protective mechanism is installed inside the air inlet pipe, and an air blowing mechanism is also installed inside the air inlet pipe. When the blowing mask is removed, the sealing gasket is reinserted into the fixing plate to block the insertion hole, preventing debris from entering the testing device body through the insertion hole during mask replacement. The sealing gasket is disengaged from the insertion hole on the fixing plate, and a filter screen is positioned on the left side of the fixing plate to block saliva or oral objects from entering the testing device body. A second sealing ring is inserted into the slot of a first sealing ring to seal the device, preventing air leakage during use, increasing the accuracy of lung function testing, and facilitating use.

Description

Technical Field

[0001] This utility model relates to the field of lung function testing technology, specifically to a lung function testing device. Background Technology

[0002] The lungs are vital organs in the human body, and pulmonary function testing is an essential examination for respiratory diseases. It is crucial for early detection of lung and airway lesions, assessment of disease severity and prognosis, and evaluation of the effectiveness of drugs or other treatments. However, previous pulmonary function measurement devices had low sampling frequencies, were highly susceptible to environmental interference, and were generally bulky. Even miniaturized pulmonary function measurement devices required wired connections to a computer, which was inconvenient for users' diverse pulmonary function testing needs.

[0003] Currently available lung function testing devices typically use masks or mouthpieces for testing. However, since masks and mouthpieces are disposable, if the device is dropped during replacement, dust can easily enter the device through the air inlet, causing damage. Furthermore, the current masks and mouthpieces are directly inserted into the air inlet, leading to air leakage at the connection point during the blowing test, which affects the test results. Therefore, an improved lung function testing device is needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a lung function testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a lung function testing device, comprising a testing device body, an air inlet pipe threadedly installed on the right side of the testing device body, a protective mechanism provided inside the air inlet pipe, and an air blowing mechanism provided inside the air inlet pipe.

[0006] Preferably, the protective mechanism includes a fixing plate, which is fixedly installed inside the air intake pipe. A fixing sleeve is fixedly installed on the left side of the fixing plate, and a sliding cylinder is slidably installed inside the fixing sleeve. A sliding frame is fixedly installed on the left side of the sliding cylinder, and a sealing gasket is fixedly installed on the right side of the sliding frame. A sealing ring is fixedly installed on the right side of the fixing plate, and a spring is fixedly installed inside the fixing sleeve to prevent foreign objects from entering the detection device body through the insertion hole, thereby protecting the detection device body.

[0007] Preferably, the end of the spring away from the fixed sleeve is fixedly installed with the sliding cylinder, and the fixed plate and the first sealing ring are provided with insertion holes at the corresponding positions of the sealing gasket, and the sealing gasket is inserted into the insertion hole, so that the second sealing ring is inserted into the slot of the first sealing ring for sealing operation.

[0008] Preferably, the spring is initially in a compressed state, and when it is in a compressed state, the sealing gasket is inserted into the insertion hole of the fixing plate to block the insertion hole.

[0009] Preferably, the blowing mechanism includes an insertion tube, which is disposed inside the air inlet pipe. A sealing ring is fixedly installed on the left side of the insertion tube, a filter screen is fixedly installed on the left side of the insertion tube, a positioning block is fixedly installed on the left side of the filter screen, and a blowing mask is fixedly installed on the right side of the insertion tube, so that the filter screen is disposed on the left side of the fixed plate to block the saliva or oral objects of the tester and prevent foreign objects from entering the body of the testing device.

[0010] Preferably, the sealing gasket and the positioning block are provided with slots at corresponding positions, and the positioning block is inserted into the slot. The sealing ring one and the sealing ring two are provided with slots at corresponding positions, and the sealing ring two is inserted into the slot. This prevents air leakage during use, increases the accuracy of lung function testing, and facilitates use.

[0011] Compared with the prior art, the present invention provides a lung function testing device, which has the following beneficial effects:

[0012] 1. This lung function testing device, through its protective mechanism, ensures that when the inhalation mask is removed during use, the sealing gasket is reinserted into the fixing plate to block the insertion hole, preventing foreign objects from entering the testing device body through the insertion hole during mask replacement, thus protecting the testing device body.

[0013] 2. This lung function testing device, through its blowing mechanism, allows the sealing gasket to disengage from the insertion hole of the fixing plate during use. The filter screen is positioned on the left side of the fixing plate to block the user's saliva or oral contents, preventing debris from entering the device. The second sealing ring is inserted into the slot of the first sealing ring to seal the device, preventing air leakage during use, increasing the accuracy of lung function testing, and facilitating operation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the internal structure of the central air intake pipe;

[0017] Figure 3 for Figure 2 A schematic diagram of the structure of the central protective mechanism;

[0018] Figure 4 for Figure 2 A schematic diagram of the air blowing mechanism.

[0019] In the diagram: 1. Detection device body; 2. Protective mechanism; 21. Fixing plate; 22. Fixing sleeve; 23. Sliding cylinder; 24. Sliding frame; 25. Sealing gasket; 26. Sealing ring one; 27. Spring; 3. Air blowing mechanism; 31. Insertion tube; 32. Sealing ring two; 33. Filter screen; 34. Positioning block; 35. Air blowing mask; 4. Air inlet pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Example 1:

[0023] Please see Figure 1-3 This utility model provides a technical solution: a lung function testing device, including a testing device body 1, an air inlet pipe 4 threadedly installed on the right side of the testing device body 1, a protective mechanism 2 inside the air inlet pipe 4, and an air blowing mechanism 3 inside the air inlet pipe 4.

[0024] Furthermore, the protective mechanism 2 includes a fixing plate 21, which is fixedly installed inside the air inlet pipe 4. A fixing sleeve 22 is fixedly installed on the left side of the fixing plate 21. A sliding cylinder 23 is slidably installed inside the fixing sleeve 22. A sliding frame 24 is fixedly installed on the left side of the sliding cylinder 23. A sealing gasket 25 is fixedly installed on the right side of the sliding frame 24. A sealing ring 26 is fixedly installed on the right side of the fixing plate 21. A spring 27 is fixedly installed inside the fixing sleeve 22 to prevent foreign objects from entering the detection device body 1 through the insertion hole and to protect the detection device body 1.

[0025] Furthermore, the end of the spring 27 away from the fixed sleeve 22 is fixedly installed with the sliding cylinder 23. The fixed plate 21 and the sealing ring 26 are provided with insertion holes at the corresponding positions of the sealing gasket 25, and the sealing gasket 25 is inserted into the insertion hole, so that the sealing ring 32 is inserted into the slot of the sealing ring 26 to perform a sealing operation.

[0026] Furthermore, when the spring 27 is initially in a compressed state, the sealing gasket 25 is inserted into the socket of the fixing plate 21 to block the socket.

[0027] Example 2:

[0028] Please see Figure 4 Furthermore, in conjunction with Embodiment 1, it is further found that the blowing mechanism 3 includes an insertion tube 31, which is disposed inside the air inlet pipe 4. A sealing ring 32 is fixedly installed on the left side of the insertion tube 31, a filter screen 33 is fixedly installed on the left side of the insertion tube 31, a positioning block 34 is fixedly installed on the left side of the filter screen 33, and a blowing mask 35 is fixedly installed on the right side of the insertion tube 31, so that the filter screen 33 is disposed on the left side of the fixing plate 21 to block the saliva or oral objects of the tester and prevent foreign objects from entering the body 1 of the testing device.

[0029] Furthermore, slots are provided at the corresponding positions of the sealing gasket 25 and the positioning block 34, and the positioning block 34 is inserted into the slot. Similarly, slots are provided at the corresponding positions of the sealing ring 26 and the sealing ring 32, and the sealing ring 32 is inserted into the slot. This prevents air leakage during use, increases the accuracy of lung function testing, and facilitates use.

[0030] In actual operation, when this device is in use, the air inlet pipe 4 is threaded into the air inlet position of the main body 1 of the detection device. When in use, the insertion tube 31 is inserted into the air inlet pipe 4. First, the positioning block 34 enters the slot of the sealing gasket 25. The filter screen 33 squeezes the sealing gasket 25, causing the sealing gasket 25 to disengage from the insertion hole position of the fixing plate 21. The filter screen 33 is positioned on the left side of the fixing plate 21 to block the saliva or oral objects of the test subject, preventing foreign objects from entering the main body 1 of the detection device. The sealing ring 2 32 is inserted into the slot of the sealing ring 1 26 to seal it, preventing air leakage during use, increasing the accuracy of lung function testing, and facilitating use. When the insertion tube 31 is removed to replace the next blowing mask 35, the spring 27 loses its limit and rebounds. The sealing gasket 25 is reinserted into the fixing plate 21 to block the insertion hole position, preventing foreign objects from entering the main body 1 of the detection device through the insertion hole during the replacement of the blowing mask 35, thus protecting the main body 1 of the detection device.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A lung function test device comprising a test apparatus body (1), characterised in that: An air inlet pipe (4) is threadedly installed on the right side of the main body (1) of the detection device. A protective mechanism (2) is provided inside the air inlet pipe (4), and an air blowing mechanism (3) is provided inside the air inlet pipe (4). The protective mechanism (2) includes a fixing plate (21), which is fixedly installed inside the air inlet pipe (4). A fixing sleeve (22) is fixedly installed on the left side of the fixing plate (21). A sliding cylinder (23) is slidably installed inside the fixing sleeve (22). A sliding frame (24) is fixedly installed on the left side of the sliding cylinder (23). A sealing gasket (25) is fixedly installed on the right side of the sliding frame (24). A sealing ring (26) is fixedly installed on the right side of the fixing plate (21). A spring (27) is fixedly installed inside the fixing sleeve (22).

2. A pulmonary function testing device according to claim 1, wherein: The end of the spring (27) away from the fixed sleeve (22) is fixedly installed with the sliding cylinder (23). The fixed plate (21) and the sealing ring (26) are provided with insertion holes at the corresponding positions of the sealing gasket (25), and the sealing gasket (25) is inserted into the insertion hole.

3. The pulmonary function testing apparatus of claim 1, wherein: The spring (27) is initially in a compressed state, and when it is in a compressed state, the sealing gasket (25) is inserted into the insertion hole of the fixing plate (21).

4. The pulmonary function testing apparatus of claim 1, wherein: The blowing mechanism (3) includes a tube (31), which is located inside the air inlet pipe (4). A sealing ring (32) is fixedly installed on the left side of the tube (31), a filter screen (33) is fixedly installed on the left side of the tube (31), a positioning block (34) is fixedly installed on the left side of the filter screen (33), and a blowing mask (35) is fixedly installed on the right side of the tube (31).

5. A lung function testing device according to claim 4, characterized in that: The sealing gasket (25) and the positioning block (34) are provided with slots at corresponding positions, and the positioning block (34) is inserted into the slot. The sealing ring one (26) and the sealing ring two (32) are provided with slots at corresponding positions, and the sealing ring two (32) is inserted into the slot.

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