Device for measuring functions of respiratory system
By designing the connecting components of the sealing ring and expansion parts in the respiratory system function measurement device, the problem of air leakage at the connection between the air blowing nozzle and the handle is solved, and the measurement accuracy is improved.
Patent Information
- Application Number
- CN202421051284.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-15
AI Technical Summary
In the respiratory system function measurement device, the connection between the air blowing nozzle and the handle is not tight enough, which is prone to leakage, affecting the accuracy of pulmonary capacity measurement.
A connecting assembly including a sealing ring and an expansion member is designed, and the sealing ring is squeezed through the expansion of the expansion member to achieve a close fit between the blowing nozzle and the handle to prevent air leakage.
Improves the seal between the blowing nozzle and the handle, prevents air leakage, and enhances the accuracy of spirometry measurement.
Smart Images
Figure CN222533290U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of respiratory function detection, in particular to a measuring device for respiratory system function. Background Art
[0002] The respiratory system function measurement device is a device used to evaluate and monitor the respiratory system function. Common ones include vital capacity measurement, dynamic lung function test and respiratory rate detection. When measuring vital capacity, a spirometer is required. The mouthpiece is inserted into the handle, and the handle is connected to the spirometer through a pipe. The mouthpiece is covered on the user's mouth, and the user blows to perform a vital capacity test. The user's vital capacity can be seen on the display screen of the spirometer.
[0003] When using the vital capacity tester in the respiratory system function measuring device, the air blowing nozzle is inserted into the joint of the handle. The user holds the handle with his hand and makes the air blowing nozzle close to the skin around his mouth, and then blows air to perform a vital capacity test. However, the air blowing nozzle is only connected to the handle by a simple plug-in method. The connection is not tight enough and it is easy to leak at the connection. Leakage will affect the measurement accuracy of vital capacity. Therefore, the present application provides a respiratory system function measuring device to meet the needs. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a measuring device for respiratory system function to solve the technical problem that the connection between the blowing nozzle and the handle is not tight enough, air leaks easily at the connection, and air leakage affects the measurement accuracy of vital capacity.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:
[0006] A device for measuring respiratory system function, comprising a tester, a handle and an air blowing nozzle, wherein the handle is connected to the tester through a pipeline, and the air blowing nozzle is inserted into the handle, and further comprising:
[0007] A connecting component, the connecting component includes a sealing ring arranged on the inner wall of the handle and an expansion member 1 fixed on the inner wall of the handle, the inner wall of the expansion member 1 is movably connected to the surface of the sealing ring, the surface of the blowing nozzle is movably connected to the inner wall of the sealing ring, a convex ring is fixed to the surface of the handle, an annular groove is provided on the inner wall of the sealing ring, the inner wall of the annular groove is movably connected to the surface of the convex ring, an expansion member 2 is fixed to the surface of the handle, the expansion member 1 is connected to the expansion member 2, a pressure plate is fixed to the surface of the expansion member 2, a groove is provided on the side of the handle, a spring is fixed to the side of the pressure plate, and the end of the spring passes through the expansion member 2 and is fixedly connected to the side of the inner wall of the groove.
[0008] Preferably, the surface of the convex ring is a curved surface, and the shape of the annular groove matches the shape of the convex ring.
[0009] Preferably, a guide assembly for guiding the blowing nozzle is provided on the top of the handle, and the guide assembly comprises a ring fixed on the handle, a guide block is fixed on the inner wall of the ring, and the side of the guide block is movably connected to the surface of the blowing nozzle.
[0010] Preferably, a guiding surface for guiding the blowing nozzle to be inserted into the handle is provided on the top of the guide block.
[0011] Preferably, the top and bottom positions of the side surface of the sealing ring are fixedly connected to the inner wall of the handle, and the middle position of the side surface of the sealing ring does not contact the inner wall of the handle.
[0012] Preferably, a slope is provided on the surface of the blowing nozzle near the bottom.
[0013] Preferably, the first expansion member and the second expansion member are both airbags.
[0014] Preferably, a guide column is fixed on the side of the pressure plate, a guide groove is opened on the side of the handle, and the end of the guide column passes through the second expansion member and is slidably connected to the inner wall of the guide groove.
[0015] Compared with the prior art, the utility model has at least the following beneficial effects:
[0016] In the above scheme, the blowing nozzle is inserted into the handle through the setting of the connecting component. When in use, the handle is held by hand and the pressure plate is pressed at the same time, so that the air in the expansion member 2 is squeezed into the expansion member 1, and the expansion member 1 is expanded to squeeze the sealing ring, so that the sealing ring is tightly fitted to the surface of the blowing nozzle, and the blowing nozzle is sealed and positioned at the same time, thereby improving the sealing between the blowing nozzle and the handle, preventing air leakage at the connection between the blowing nozzle and the handle, and thus improving the measurement accuracy of vital capacity.
[0017] Through the setting of the guide component, when the blowing nozzle is inserted into the handle, the blowing nozzle is inserted into the handle after being guided by the guide block in the guide component. This not only facilitates the insertion of the blowing nozzle into the handle, but also prevents the blowing nozzle from being misaligned with the sealing ring, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the structure of the handle of the utility model;
[0021] Figure 3This is a cross-sectional view of the sealing ring of the utility model;
[0022] Figure 4 This is an enlarged view of a structure of the expansion member of the utility model.
[0023] [Reference Signs]
[0024] 1. Tester; 2. Handle; 3. Blowing nozzle; 4. Connecting assembly; 41. Sealing ring; 42. Convex ring; 43. Annular groove; 44. Expansion piece 1; 45. Expansion piece 2; 46. Pressing plate; 47. Spring; 5. Guide assembly; 51. Circular ring; 52. Guide block; 6. Guide column; 7. Guide groove.
[0025] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION
[0026] The following is a detailed description of a respiratory system function measuring device provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.
[0027] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).
[0028] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.
[0029] like Figure 1-Figure 4 As shown, the embodiment of the utility model provides a respiratory system function measurement device, including a tester 1, a handle 2 and a blowing nozzle 3. The handle 2 is connected to the tester 1 through a pipeline. The blowing nozzle 3 is inserted into the handle 2. The blowing nozzle 3 is placed close to the user's mouth. The user blows air to measure the user's vital capacity through the tester 1, thereby measuring the vital capacity of the user's respiratory system function. According to the value obtained by the tester 1, it is judged whether the user's vital capacity is normal, and it also includes:
[0030] The connecting component 4 includes a sealing ring 41 arranged on the inner wall of the handle 2 and an expansion member 44 fixed on the inner wall of the handle 2. The inner wall of the expansion member 44 is movably connected to the surface of the sealing ring 41. After the inner ring of the expansion member 44 expands, it will squeeze the sealing ring 41. The surface of the air blowing nozzle 3 is movably connected to the inner wall of the sealing ring 41. A convex ring 42 is fixed to the surface of the handle 2. An annular groove 43 is provided on the inner wall of the sealing ring 41. The inner wall of the annular groove 43 is movably connected to the surface of the convex ring 42. After the sealing ring 41 is squeezed, it is tightly fitted with the surface of the air blowing nozzle 3. At the same time, the inner wall of the annular groove 43 is tightly fitted with the surface of the convex ring 42, so as to realize the connection between the handle 2 and the air blowing nozzle 3. The seal between them prevents air leakage at the connection position between the two, thereby improving the measuring accuracy of the tester 1. An expansion piece 2 45 is fixed to the surface of the handle 2, and the expansion piece 1 44 is connected to the expansion piece 2 45. A pressure plate 46 is fixed to the surface of the expansion piece 2 45. The pressure plate 46 is pressed while holding the handle 2, so that the pressure plate 46 squeezes the expansion piece 2 45, and the air in the expansion piece 2 45 enters the expansion piece 1 44, so that the expansion piece 1 44 squeezes the sealing ring 41, and a close connection between the blowing nozzle 3 and the handle 2 is achieved. A groove is opened on the side of the handle 2, and a spring 47 is fixed to the side of the pressure plate 46, and the end of the spring 47 passes through the expansion piece 2 45 and is fixedly connected to the side of the inner wall of the groove.
[0031] like Figure 4 As shown, in this embodiment, the surface of the convex ring 42 is a curved surface, and the shape of the annular groove 43 is adapted to the shape of the convex ring 42. By fitting the curved surfaces together, the sealing of the convex ring 42 is increased, thereby improving the sealing between the blowing nozzle 3 and the handle 2.
[0032] like Figure 4 As shown, in this embodiment, a guide assembly 5 for guiding the blowing nozzle 3 is provided on the top of the handle 2, and the guide assembly 5 includes a circular ring 51 fixed on the handle 2, and a guide block 52 is fixed to the inner wall of the circular ring 51. The side of the guide block 52 is movably connected to the surface of the blowing nozzle 3, and the circular ring 51 is used to connect the guide block 52 with the handle 2. When the blowing nozzle 3 is inserted into the handle 2, it is guided by the guide block 52, thereby preventing the handle 2 and the sealing ring 41 from being misaligned with the blowing nozzle 3.
[0033] like Figure 4As shown, in this embodiment, a guiding surface for guiding the blowing nozzle 3 to be inserted into the handle 2 is provided on the top of the guide block 52 . When the blowing nozzle 3 is inserted into the circular ring 51 , it is guided by the guiding surface, thereby facilitating the insertion of the blowing nozzle 3 into the circular ring 51 .
[0034] like Figure 4 As shown, in this embodiment, the top and bottom positions of the side of the sealing ring 41 are fixedly connected to the inner wall of the handle 2, the middle position of the side of the sealing ring 41 does not contact the inner wall of the handle 2, the top and bottom of the sealing ring 41 are connected to the handle 2, and the middle of the sealing ring 41 does not contact the handle 2, so that when the inner ring of the expansion member 44 expands, the middle of the sealing ring 41 is driven to fit tightly with the blowing nozzle 3.
[0035] like Figure 4 As shown, in this embodiment, a slope is provided on the surface of the blowing nozzle 3 near the bottom, and the slope facilitates the blowing nozzle 3 to be inserted into the handle 2.
[0036] like Figure 3 and Figure 4 As shown, in this embodiment, both expansion member 1 44 and expansion member 2 45 are airbags, which can be deformed and store air, thereby satisfying the requirement that the air in expansion member 2 45 enters expansion member 1 44 and expands and squeezes the sealing ring 41 .
[0037] like Figure 3 As shown, in this embodiment, a guide column 6 is fixed to the side of the pressure plate 46, and a guide groove 7 is opened on the side of the handle 2. The end of the guide column 6 passes through the expansion member 45 and is slidably connected to the inner wall of the guide groove 7. When the pressure plate 46 moves, it drives the guide column 6 to move along the inner wall of the guide groove 7. The guide column 6 guides the movement of the pressure plate 46 so that the pressure plate 46 is always in a horizontal movement state.
[0038] Working principle: guide the blowing nozzle 3 into the circular ring 51 of the assembly 5, and insert the blowing nozzle 3 into the handle 2 after being guided by the guide block 52 and connected with the inner wall of the sealing ring 41. Hold the handle 2 with your hand, and press the pressing plate 46 while holding the handle 2. The pressing plate 46 squeezes the expansion member 2 45, and at the same time, the pressing plate 46 squeezes the spring 47. The spring 47 is in a compressed state. After the pressing plate 46 squeezes the expansion member 2 45, the air in the expansion member 2 45 is squeezed into the expansion member 1 44, so that the inner ring of the expansion member 1 44 expands and squeezes the sealing ring 41, so that the sealing ring 41 is closely fitted with the surface of the blowing nozzle 3, and the inner wall of the annular groove 43 is closely fitted with the surface of the convex ring 42, so as to improve the sealing performance of the connection between the blowing nozzle 3 and the handle 2, and then the blowing nozzle 3 is closely attached to the user's mouth, and then the vital capacity can be measured by blowing.
[0039] After the measurement is completed, the handle 2 is released, and the pressure plate 46 no longer squeezes the expansion piece 2 45 under the elastic force of the spring 47, so that the expansion piece 1 44 no longer squeezes the sealing ring 41, and the sealing ring 41 returns to its undeformed state. The air in the expansion piece 1 44 enters the expansion piece 2 45, so that the expansion piece 2 45 gradually returns to its undeformed state, and the sealing ring 41 no longer fits tightly with the blowing nozzle 3. Then the blowing nozzle 3 can be pulled out of the handle 2 and replaced with the next blowing nozzle 3 for subsequent use.
[0040] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, the specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.
[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A device for measuring respiratory system function, comprising a tester (1), a handle (2) and an air blowing nozzle (3), wherein the handle (2) is connected to the tester (1) through a pipeline, and the air blowing nozzle (3) is inserted into the handle (2), characterized in that: Also includes: A connecting assembly (4), the connecting assembly (4) comprising a sealing ring (41) arranged on the inner wall of the handle (2) and an expansion member (44) fixed on the inner wall of the handle (2), the inner wall of the expansion member (44) being movably connected to the surface of the sealing ring (41), the surface of the blowing nozzle (3) being movably connected to the inner wall of the sealing ring (41), a convex ring (42) being fixed to the surface of the handle (2), an annular groove (43) being provided on the inner wall of the sealing ring (41), the inner wall of the annular groove (43) being movably connected to the surface of the convex ring (42), an expansion member (45) being fixed to the surface of the handle (2), the expansion member (44) being connected to the expansion member (45), a pressing plate (46) being fixed to the surface of the expansion member (45), a groove being provided on the side of the handle (2), a spring (47) being fixed to the side of the pressing plate (46), the end of the spring (47) passing through the expansion member (45) and being fixedly connected to the side of the inner wall of the groove.
2. The respiratory system function measuring device according to claim 1, characterized in that: The surface of the convex ring (42) is a curved surface, and the shape of the annular groove (43) is adapted to the shape of the convex ring (42).
3. The respiratory system function measuring device according to claim 1, characterized in that: A guide assembly (5) for guiding the air blowing nozzle (3) is arranged at the top of the handle (2), the guide assembly (5) comprising a circular ring (51) fixed on the handle (2), a guide block (52) fixed on the inner wall of the circular ring (51), and a side surface of the guide block (52) movably connected to the surface of the air blowing nozzle (3).
4. The respiratory system function measuring device according to claim 3, characterized in that: A guide surface for guiding the blowing nozzle (3) to be inserted into the handle (2) is provided on the top of the guide block (52).
5. The respiratory system function measuring device according to claim 1, characterized in that: The top and bottom positions of the side surface of the sealing ring (41) are fixedly connected to the inner wall of the handle (2), and the middle position of the side surface of the sealing ring (41) does not contact the inner wall of the handle (2).
6. The respiratory system function measuring device according to claim 1, characterized in that: The surface of the blowing nozzle (3) is provided with an inclined surface near the bottom.
7. The respiratory system function measuring device according to claim 1, characterized in that: The expansion member 1 (44) and the expansion member 2 (45) are both air bags.
8. The respiratory system function measuring device according to claim 1, characterized in that: A guide column (6) is fixed to the side of the pressure plate (46), a guide groove (7) is provided on the side of the handle (2), and an end of the guide column (6) passes through the second expansion member (45) and is slidably connected to the inner wall of the guide groove (7).