Smell training system based on regulation and control function and method thereof

Abstract

The invention relates to the technical field related to medical instruments, and discloses an olfactory training system and method based on a regulation function, the system comprises a main body structure, and a central confluence cavity used for communicating an odor input end with an odor release end is arranged in the main body structure. A diaphragm assembly capable of moving along the inner wall of the central confluence cavity is arranged in the central confluence cavity, and diaphragms are used for replacing the inner wall of the central confluence cavity to make contact with smells in the smell conveying process and updating the working area through displacement when the smells are switched, so that the diaphragms making contact with the smells exit from the working area, and the diaphragms not making contact with the smells enter the working area. A sealing and guiding structure is arranged on the edge of the diaphragm, so that the diaphragm is kept flat in the moving and working process, and a stable airtight isolation interface is formed between the diaphragm and the inner wall of the confluence cavity. Therefore, the smell is only in contact with the surface of the diaphragm in the training process, the adsorption and residual probability of the smell on the inner wall of the confluence cavity is reduced, the mixing of various smells in the switching process is effectively reduced, and the accuracy and consistency of olfactory training are improved.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and more specifically, relates to an olfactory training system and method based on regulatory functions. Background Technology

[0002] The sense of smell is the perception of odors and plays an important role in people's social interactions and daily life. Olfactory disorders can affect people's quality of life, social interactions, nutrient intake, and even threaten their lives. Existing treatments for olfactory disorders include etiological treatment, drug treatment, surgical treatment, olfactory training, and other treatments. Among them, olfactory training refers to the treatment method in which patients actively and repeatedly smell various types of odorants to improve their olfactory function.

[0003] Existing technologies for olfactory training systems still have the following drawbacks: In some olfactory training systems, to achieve selective release of multiple odors, a common structure involves multiple odor sources converging into a single manifold via valves or switching mechanisms before being delivered to the release end. During odor delivery, odor molecules inevitably come into direct contact with the inner wall of the manifold. Because some odor molecules have strong adsorption properties, they easily adhere to the surface of the manifold's inner wall, resulting in residue during subsequent odor switching. This residual odor is difficult to dissipate naturally within a short time and may continue to be released even after the current odor delivery is stopped, interfering with subsequent training.

[0004] In existing technologies, methods such as purging, cleaning, inert gas replacement, or extending the flow path are commonly used to address the problem of residual odors in order to reduce the interaction between different odors. However, these methods are essentially passive removal measures for existing contamination. In training scenarios with continuous and multiple odor switching, the removal process often requires additional time or auxiliary structures, making it difficult to completely eliminate residual odors in a short time. Furthermore, frequent purging or cleaning operations may increase system complexity and maintenance costs, affecting the stable operation and efficiency of the equipment.

[0005] In existing olfactory training systems, the manifold is typically a fixed cavity structure, with its inner wall serving as the odor contact interface throughout the entire usage process. Once odor adsorption occurs on the inner wall surface, it is difficult to change this contact interface state even by switching valves or stopping the delivery. With increased usage, the accumulated odor residue on the inner wall may gradually worsen, leading to a decrease in the distinguishability between different odors, thus affecting the accuracy and consistency of olfactory training results. This fixed contact interface structure has certain limitations in long-term and high-frequency usage scenarios.

[0006] Therefore, in view of this, we will study and improve the existing structure and its deficiencies, and provide an olfactory training system and method based on regulatory functions, in order to achieve a more practical and valuable purpose. Summary of the Invention

[0007] This invention provides an olfactory training system and method based on regulatory functions to overcome the above-mentioned defects in the prior art.

[0008] The purpose and effectiveness of the olfactory training system and method based on regulatory function of this invention are achieved by the following specific technical means: An olfactory training system based on regulatory functions includes a main structure, one end of which has an odor input end, and the other end of which has an odor release end. A central confluence cavity for connecting the odor input end and the odor release end is located in the middle of the main structure. The system also includes: A diaphragm assembly is disposed within the central manifold, the diaphragm assembly comprising a diaphragm arranged along the inner wall of the central manifold, the diaphragm being used to replace the inner wall of the central manifold in contact with the odor during odor delivery; A drive assembly, connected to the diaphragm, is used to drive the diaphragm to move along the inner wall of the central manifold, so that when the odor changes, the diaphragm area that has been in contact with the odor exits the working area and the diaphragm area that has not been in contact with the odor enters the working area. The diaphragm forms an airtight barrier with its inner wall within the central manifold, ensuring that odors only come into contact with the diaphragm within the central manifold.

[0009] In this solution, by updating the displacement of the diaphragm within the central manifold, the odors only come into contact with the diaphragm during transport and not with the inner wall of the main structure. This fundamentally avoids the adsorption, residue, and mixing of different odors on the inner wall of the central manifold, thereby improving the accuracy and consistency of odor switching during olfactory training.

[0010] In a further technical solution, the diaphragm assembly includes fixed rings spaced apart along the inner wall of the central manifold, and the two ends of the diaphragm are respectively guided and engaged with the fixed rings to limit the movement of the diaphragm along a preset path.

[0011] In this design, the diaphragm is guided and constrained by a fixing ring to prevent radial displacement or detachment from the inner wall of the central manifold during movement, thereby improving the stability of the diaphragm renewal process.

[0012] In a further technical solution, the fixing ring is provided with a guide groove, and the edge of the diaphragm slides along the guide groove so that the diaphragm remains in contact with the inner wall of the central manifold during movement.

[0013] In this solution, the diaphragm is precisely guided by the guide groove to prevent it from tilting or shifting during movement, thus ensuring a stable isolation interface between the diaphragm and the inner wall of the central manifold.

[0014] In a further technical solution, the diaphragm assembly also includes a sealing ring, which is disposed between the diaphragm and the fixing ring to form an airtight isolation interface within the central manifold.

[0015] In this solution, the sealing effect of the sealing ring prevents odors from leaking along the edge of the diaphragm to the inner wall of the main structure, thereby enhancing the anti-odor effect in the central manifold.

[0016] In a further technical solution, the edge of the diaphragm is provided with a flange, which slides within a limiting groove to guide and limit the movement of the diaphragm.

[0017] In this design, the cooperation between the flange and the limiting groove prevents the edge of the diaphragm from warping or becoming unstable, thus ensuring the stability of the diaphragm's posture during movement.

[0018] In a further technical solution, the driving assembly includes a rotating shaft assembly and a rotating shaft, one end of the diaphragm is wound around the rotating shaft assembly, and the other end of the diaphragm is wound around the rotating shaft, so as to realize the displacement of the diaphragm by rotation; the rotating shaft assembly includes a drive motor and a rotating shaft, and the drive motor is used to drive the rotating shaft to rotate.

[0019] In a further technical solution, the diaphragm assembly also includes an expansion member, which is disposed at the fixing ring and is used to guide and support the diaphragm so as to keep the diaphragm flat.

[0020] In this solution, the expansion element supports the diaphragm, preventing the diaphragm from forming wrinkles or suspended areas during movement, thus ensuring the continuity of the isolation interface.

[0021] In a further technical solution, the expansion component is expanded by supplying air with a small air pump, which is located inside the main structure.

[0022] In a further technical solution, the odor input end is provided with multiple receiving cavities, and the odor release end is provided with multiple release cavities. Each receiving cavity and each release cavity are connected to the central confluence cavity through a switching component.

[0023] In this scheme, during the multi-odor switching training process, the dynamic update mechanism of the diaphragm ensures that different odors remain independent of each other even when sharing the central manifold, significantly reducing the risk of odor cross-contamination.

[0024] An olfactory training method based on regulatory function includes the following steps: S1: Odor selection, controls the odor channel switching module to connect the selected odor channel with the central manifold and introduce the target odor into the central manifold; S2: Odor isolation, after the odor enters the central manifold, the odor only comes into contact with the surface of the double-layer membrane, preventing odor molecules from directly contacting the inner wall of the central manifold itself; S3: Diaphragm state maintenance. The diaphragm is guided and tensioned by the guide tensioning component, so that the diaphragm remains flat and in good fit during the odor output process, avoiding wrinkles or suspended areas. S4: Odor switching. Before or during the switching process, the double-layer diaphragm is driven to move along the inner wall of the central manifold, so that the diaphragm area that has been in contact with the odor leaves the working area and the diaphragm area that has not been in contact with the odor enters the working area. S5: Continuous training, repeat the above steps to achieve continuous output of multiple odors in the same olfactory training process, and keep the central confluence cavity free of odor residue between each odor.

[0025] Compared with the prior art, the present invention has the following beneficial effects: This invention discloses an olfactory training system based on a control function. Through the arrangement of a rotating shaft assembly, a rotating shaft, and a diaphragm, a drive motor in the rotating shaft assembly drives the rotating shaft to rotate, causing one end of the diaphragm to continuously wrap around the outer wall of the rotating shaft assembly. Simultaneously, the diaphragm wrapped around the outer wall of the rotating shaft gradually enters the central manifold cavity, thereby driving the diaphragm to displace along the inner wall of the central manifold cavity. Through this displacement process, the diaphragm area that has come into contact with the odor exits the working area of ​​the central manifold cavity, while the diaphragm area that has not come into contact with the odor enters the working area, thus continuously refreshing the effective contact inner wall of the central manifold cavity. By setting a movable diaphragm along the inner wall of the central manifold cavity and driving the diaphragm to displace along the inner wall during odor switching or training intervals, the odor only contacts the diaphragm surface during training, without contacting the solid inner wall of the central manifold cavity. Structurally, this avoids the adsorption, mixing, or residue of different odors within the central manifold cavity, significantly reducing the interference of cross-contamination of odors on olfactory recognition training. It also prevents highly absorbent fragrances from causing long-term contamination of the cavity body, reducing system maintenance frequency and improving long-term stability. Furthermore, by setting two movable diaphragms at intervals along the inner wall of the central manifold, the two diaphragms form a double-layer isolation structure within the manifold. This double-layer diaphragm structure provides double isolation to the odor delivery area during operation, effectively shortening the path of odor diffusion to the inner wall of the manifold and reducing the risk of single-layer isolation failure.

[0026] This invention discloses an olfactory training system based on a control function. Through the arrangement of a diaphragm, flanged portions, and limiting grooves, the diaphragm moves in a restricted manner within the central manifold along a guide groove during its movement. Furthermore, the expansion member expands and provides guidance and support to the flanged portions at both ends of the diaphragm, thus maintaining a flat state during movement and operation, preventing the formation of wrinkles or suspended areas.

[0027] This invention discloses an olfactory training system based on a regulatory function. By using sealing rings positioned between the diaphragm and the inner walls of corresponding fixing rings, a stable, airtight interface is formed between the two fixing rings. Furthermore, several pairs of protrusions sliding within several grooves further limit and support the diaphragm, ensuring a stable fit between the diaphragm and the inner wall of the central manifold. This ensures that the odor only contacts the diaphragm surface during training, preventing odor molecules from adsorbing onto the inner wall of the central manifold. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Figure 1 This is a schematic diagram of the first isometric structure of the present invention; Figure 2 This is a schematic diagram of the first isometric structure of the present invention; Figure 3 This is a schematic diagram of the isometric sectional view of the present invention; Figure 4 This is a front view structural diagram of the present invention; Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure at point AA; Figure 6 for Figure 5 A magnified schematic diagram of the local structure at point F; Figure 7 for Figure 4 Schematic diagram of the cross-sectional structure at point BB; Figure 8 for Figure 4 Schematic diagram of the cross-sectional structure at the CC section; Figure 9 for Figure 4Schematic diagram of the cross-sectional structure at the middle DD section; Figure 10 This is a schematic diagram of the left-side structure of the present invention; Figure 11 for Figure 10 Schematic diagram of the cross-sectional structure at the middle EE section; Figure 12 for Figure 11 A magnified view of the structure at point G in the middle.

[0031] Explanation of reference numerals in the attached figures: Main structure 10, odor release end 11, odor input end 12, skin-friendly layer 13, release hole 14, collar 15, small air pump 16, button 17, solenoid valve 18, central manifold 19, fixing ring 20, annular partition 21, guide groove 22, limiting groove 23, expansion component 24, groove 25, sealing ring 26, diaphragm 27, flange 28, protrusion 29, 30, first partition 31, first cavity 32, second cavity 33, rotating shaft assembly 34, rotating shaft 35, clearance opening 36, second partition 37, sealing strip 38, first cross partition 39, receiving cavity 40, stepper motor 41, first delivery pipe 42, drive shaft 43, first circular plate 44, second circular plate 45, second delivery pipe 46, second cross partition 47, release cavity 48, first shut-off valve 49, second shut-off valve 50. Detailed Implementation

[0032] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0033] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] As attached Figure 1 To be continued Figure 12 As shown: This invention provides an embodiment of an olfactory training system based on regulatory functions. See attached document Figure 1 To be continued Figure 12 The system includes a main structure 10, with an odor input end 12 at one end and an odor release end 11 at the other end. A central confluence cavity 19 for connecting the odor input end 12 and the odor release end 11 is located in the middle of the main structure 10. The system also includes: A diaphragm assembly is disposed within a central manifold 19. The diaphragm assembly includes a diaphragm 27 arranged along the inner wall of the central manifold 19. The diaphragm 27 is used to replace the inner wall of the central manifold 19 in contact with the odor during odor delivery. A drive assembly, connected to the diaphragm 27, is used to drive the diaphragm 27 to move along the inner wall of the central manifold 19 so that when the odor is switched, the area of ​​the diaphragm 27 that has been exposed to the odor exits the working area and the area of ​​the diaphragm 27 that has not been exposed to the odor enters the working area. The diaphragm 27 forms an airtight isolation relationship with its inner wall within the central manifold 19, so that the odor only comes into contact with the diaphragm 27 within the central manifold 19.

[0036] In practice, during the odor switching process, the driving component causes the diaphragm 27 to shift along the inner wall of the central manifold 19, thereby causing the area of ​​the diaphragm 27 that has come into contact with the odor to exit the working area, while the area of ​​the diaphragm 27 that has not come into contact with the odor to enter the working area. Through the displacement and updating of the diaphragm 27 within the central manifold 19, the odor is ensured to contact only the diaphragm 27 during transport and not the inner wall of the main structure 10. This fundamentally avoids the adsorption, residue, and mixing of different odors on the inner wall of the central manifold 19, improving the accuracy and consistency of odor switching during olfactory training.

[0037] Preferred options are shown in the appendix. Figure 3 To be continued Figure 6 The diaphragm assembly includes two fixing rings 20, which are symmetrically fixed to the inner wall of the central manifold 19. The two fixing rings 20 are provided with grooves on the side of each other that are close to each other. An annular partition 21 is provided in the middle of the groove. The groove is separated by the annular partition 21 and two guide grooves 22 are provided. The upper and lower ends of each diaphragm 27 slide in the guide grooves 22 in the two fixing rings 20 respectively.

[0038] In practice, when the diaphragm 27 is displaced under the action of the drive assembly, its upper and lower ends slide synchronously along the guide groove 22, so that the diaphragm 27 moves stably along the axial direction of the central manifold 19. The fixing ring 20 and the guide groove 22 guide and limit the diaphragm 27, preventing the diaphragm 27 from radially shifting or flipping during movement, and ensuring that the diaphragm 27 is always smoothly renewed along the predetermined path.

[0039] Two movable diaphragms are installed at intervals along the inner wall of the central manifold, forming a double-layer isolation structure within the manifold. This double-layer diaphragm structure provides double isolation to the odor delivery area during operation, effectively shortening the path of odor diffusion to the inner wall of the manifold and reducing the risk of single-layer isolation failure.

[0040] Preferred options are shown in the appendix. Figure 3 To be continued Figure 6 Appendix Figure 11 Appendix Figure 12 Each guide groove 22 has a limiting groove 23 on the side away from the groove opening of the fixing ring 20, and a sealing ring 26 on the side of each guide groove 22 close to the groove opening of the fixing ring 20. Each diaphragm 27 has a flange 28 on its edge, which slides in the limiting groove 23. The sealing ring 26 is located between one side of the diaphragm 27 and the side wall of the guide groove 22.

[0041] In practice, as the diaphragm 27 moves along the guide groove 22, the flanged portion 28 slides synchronously within the limiting groove 23, while the sealing ring 26 remains in contact with the diaphragm 27. The limiting fit between the flanged portion 28 and the limiting groove 23 prevents warping of the diaphragm 27's edges. Furthermore, the sealing ring 26 forms a continuous sealing interface, ensuring a stable airtight isolation relationship between the diaphragm 27 and the fixing ring 20.

[0042] Preferred options are shown in the appendix. Figure 3 To be continued Figure 6 Appendix Figure 11 Appendix Figure 12 An expansion member 24 is provided on one side of the limiting groove 23 near the opening of the groove of the fixing ring 20. The expansion member 24 provides axial guidance and limiting for the flange 28. Several grooves 25 are provided on both sides of the middle part of each guide groove 22. Several pairs of protrusions 29 are provided on both sides of the upper and lower ends of each diaphragm 27. Each protrusion 29 slides in the groove 25.

[0043] In practice, the expansion member 24 applies an axial guiding force to the flanged portion 28 when the air is supplied, while the protrusion 29 slides within the groove 25, providing multi-point support for the diaphragm 27. Through the cooperation between the expansion member 24 and the protrusion 29, the diaphragm 27 remains flat during movement and operation, avoiding the formation of wrinkles or suspended areas, thereby ensuring the sealing stability between the diaphragm 27 and the inner wall of the central manifold 19.

[0044] Preferred options are shown in the appendix. Figure 3 To be continued Figure 5 Appendix Figure 7 The main structure 10 has a collar 15 on its outer wall at the middle. A first partition 31 and a second partition 37 are symmetrically arranged between the collar 15 and the outer wall at the middle of the main structure 10. The collar 15 is divided into a first cavity 32 and a second cavity 33 by the first partition 31 and the second partition 37. A pair of rotating shafts 35 are rotatably mounted inside the first cavity 32, and a pair of rotating shaft assemblies 34 are mounted inside the second cavity 33. One end of a diaphragm 27 is wound around the outer wall of the rotating shaft 35, and the other end of the diaphragm 27 is wound around the outer wall of the rotating shaft assembly 34. The rotating shaft assembly 34 includes a drive motor and a rotating shaft. The drive motor drives the rotating shaft to rotate, thereby causing the diaphragm 27 to move along the groove of the fixed ring 20.

[0045] In practice, the rotating shaft assembly 34 rotates under the action of the drive motor, causing one end of the diaphragm 27 to be wound up while the other end is released at the rotating shaft 35, thereby driving the diaphragm 27 to move along the inner wall of the central manifold 19. The winding drive structure makes the diaphragm 27 renewal process continuous and controllable, suitable for training conditions with multiple odor switching.

[0046] Preferred options are shown in the appendix. Figure 7 The main structure 10 has an opening 36 on the side facing the second partition 37, and the second partition 37 has a sealing strip 38 on the side facing the opening 36. The sealing strip 38 is located between the two ends of the outer diaphragm 27.

[0047] In practice, during the movement of the diaphragm 27 or the odor delivery process, the sealing strip 38 always seals and covers the clearance opening 36. This prevents odors in the central manifold 19 from entering the first cavity 32 or the second cavity 33 through the clearance opening 36, and avoids the odors from spreading to the drive structure area.

[0048] Preferred options are shown in the appendix. Figure 7 Appendix Figure 12 A small air pump 16 is installed inside the first cavity 32. One end of the small air pump 16 is connected to several expansion components 24 through several connecting pipes.

[0049] In practice, a small air pump 16 supplies air to the expansion member 24, causing the expansion member 24 to expand and providing guidance and support to the diaphragm 27. This enables dynamic adjustment of the state of the diaphragm 27, ensuring that the diaphragm 27 maintains a good fit at different working stages.

[0050] Preferred options are shown in the appendix. Figure 1 To be continued Figure 3 Appendix Figure 8 To be continued Figure 12The odor input terminal 12 has a first cross partition 39 inside, which divides the interior of the odor input terminal 12 into four receiving cavities 40. The outer wall of the odor release terminal 11 has a skin-friendly layer 13, and the interior of the odor release terminal 11 has a second cross partition 47, which divides the interior of the odor release terminal 11 into four release cavities 48. The outer wall of each release cavity 48 has several release holes 14. Each receiving cavity 40 and each release cavity 48 are connected to the central manifold 19 through a switching assembly.

[0051] In practice, odors from different receiving cavities 40 are selected by the switching component and then transported to the corresponding release cavities 48 through the central manifold 19, and released through the release port 14. This enables the independent selection and release of multiple odors within the same device, meeting the needs of olfactory training.

[0052] Preferred options are shown in the appendix. Figure 10 To be continued Figure 12 The switching assembly includes a first circular plate 44, a second circular plate 45, and a drive shaft 43. The drive shaft 43 rotates within the central manifold 19. Both ends of the drive shaft 43 are fixedly connected to the first circular plate 44 and the second circular plate 45, respectively. A stepper motor 41 is mounted at the lower end of the central manifold 19 and is connected to the drive shaft 43. A first shut-off valve 49 is provided on the first circular plate 44. A first delivery pipe 42 is provided on the upper side of each receiving cavity 40, and a solenoid valve 18 is provided on the lower side of each receiving cavity 40. A button 17 is provided on the outer side of the odor input terminal 12. The second circular plate 45 rotates within the central manifold 19 and is equipped with a second shut-off valve 50. A second delivery pipe 46 is provided on the lower side of each release cavity 48.

[0053] In practice, the stepper motor 41 drives the drive shaft 43 to rotate, causing the first circular plate 44 and the second circular plate 45 to rotate synchronously, and the first shut-off valve 49 and the second shut-off valve 50 to switch synchronously to the selected channel. This ensures that the odor in the selected receiving cavity 40 is delivered to the corresponding release cavity 48 via a fixed path, avoiding cross-mixing of multiple odors in the delivery path.

[0054] An olfactory training method based on regulatory function includes the following steps: S1: Odor selection, controls the odor channel switching module to connect the selected odor channel with the central manifold and introduce the target odor into the central manifold; S2: Odor isolation, after the odor enters the central manifold, the odor only comes into contact with the surface of the double-layer membrane, preventing odor molecules from directly contacting the inner wall of the central manifold itself; S3: Diaphragm state maintenance. The diaphragm is guided and tensioned by the guide tensioning component, so that the diaphragm remains flat and in good fit during the odor output process, avoiding wrinkles or suspended areas. S4: Odor switching. Before or during the switching process, the double-layer diaphragm is driven to move along the inner wall of the central manifold, so that the diaphragm area that has been in contact with the odor leaves the working area and the diaphragm area that has not been in contact with the odor enters the working area. S5: Continuous training, repeat the above steps to achieve continuous output of multiple odors in the same olfactory training process, and keep the central confluence cavity free of odor residue between each odor.

[0055] Specific usage of this invention: The odor input terminal 12 has four receiving chambers 40, each storing one of four different odors. Each receiving chamber 40 is connected to an external gas source via a corresponding solenoid valve 18 to facilitate the replenishment or replacement of the gas within the receiving chamber 40.

[0056] During olfactory training, the user operates the system via control button 17. With the first shut-off valve 49 open, gas from one of the receiving chambers 40 is transported through the corresponding first delivery pipe 42 to the central manifold 19. The gas in the central manifold 19 is then transported through the second shut-off valve 50 and the second delivery pipe 46 to the corresponding release chamber 48. The gas in the release chamber 48 is released through several release holes 14, thus training the user's olfactory sense. This structure ensures that the same odor is always transported within the corresponding first delivery pipe 42, second delivery pipe 46, and release chamber 48, reducing cross-contamination of different odors along the transport path.

[0057] When switching to a different scent for training is required, the user operates the device again via button 17. This activates the drive assembly, synchronizing the two rotating shaft assemblies 34. One end of the diaphragm 27 continuously wraps around the outer wall of the rotating shaft assembly 34, while the diaphragm 27 wrapped around the outer wall of the rotating shaft 35 gradually enters the central manifold 19. This displacement of the diaphragm 27 along the inner wall of the central manifold 19 causes it to move. Through this displacement, the area of ​​the diaphragm 27 that has come into contact with the scent exits the working area of ​​the central manifold 19, while the area of ​​the diaphragm 27 that has not come into contact with the scent enters the working area, thus continuously renewing the effective contact with the inner wall of the central manifold 19.

[0058] By setting a movable diaphragm 27 along its inner wall within the central manifold 19, and driving the diaphragm 27 to move along its inner wall during odor switching or training intervals, the odor only contacts the surface of the diaphragm 27 during training, without contacting the solid inner wall of the central manifold 19. This structurally prevents different odors from being adsorbed, mixed, or left behind within the central manifold 19, significantly reducing the interference of cross-contamination of odors on olfactory recognition training. At the same time, it prevents highly adsorbent fragrances from causing long-term contamination of the cavity body, reduces the frequency of system maintenance, and improves the stability of long-term use.

[0059] During the movement of the diaphragm 27, the flanged portions 28 at both ends of the diaphragm 27 slide within the limiting grooves 23, allowing the diaphragm 27 to move restrictedly along the guide grooves 22 within the central manifold 19. At this time, the small air pump 16 starts, supplying air to the two pairs of expansion members 24 through multiple connecting pipes, causing the expansion members 24 to expand and apply guiding and supporting effects to the flanged portions 28 at both ends of the diaphragm 27, thereby keeping the diaphragm 27 flat during movement and operation, and preventing the formation of wrinkles or suspended areas.

[0060] Simultaneously, two pairs of sealing rings 26 are positioned at the upper and lower ends of the diaphragm 27, respectively, between the diaphragm 27 and the inner walls of the corresponding fixing rings 20, thereby forming a stable airtight interface between the two fixing rings 20. Furthermore, several pairs of protrusions 29 slide within several grooves 25, further limiting and supporting the diaphragm 27, ensuring a stable fit between the diaphragm 27 and the inner wall of the central manifold 19. This ensures that the odor only contacts the surface of the diaphragm 27 during training, preventing odor molecules from adsorbing onto the inner wall of the central manifold 19.

[0061] In addition, the clearance opening 36 is sealed by the sealing strip 38 to prevent the odor in the central manifold 19 from entering the first cavity 32 or the second cavity 33 through the clearance opening 36, thereby preventing the odor from spreading to the drive structure area.

[0062] After the diaphragm 27 completes its displacement update, the stepper motor 41 drives the drive shaft 43 to rotate. The drive shaft 43 drives the first circular plate 44 and the second circular plate 45 to rotate synchronously, causing the first shut-off valve 49 and the second shut-off valve 50 to switch synchronously. The first shut-off valve 49 rotates to the top of the selected receiving cavity 40 and connects to the corresponding first delivery pipe 42. At the same time, the second shut-off valve 50 connects to the corresponding second delivery pipe 46, so that the odor in the selected receiving cavity 40 is delivered to the corresponding release cavity 48 through the first delivery pipe 42, the first shut-off valve 49, the central manifold 19, the second shut-off valve 50, and the second delivery pipe 46, and released through the release hole 14 to continue olfactory training.

[0063] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An olfactory training system based on regulatory function, comprising a main structure (10), wherein one end of the main structure (10) is provided with an odor input end (12), the other end of the main structure (10) is provided with an odor release end (11), and the middle part of the main structure (10) is provided with a central confluence cavity (19) for connecting the odor input end (12) and the odor release end (11), characterized in that, Also includes: A diaphragm assembly is disposed within the central manifold (19), the diaphragm assembly including a diaphragm (27) arranged along the inner wall of the central manifold (19), the diaphragm (27) being used to replace the inner wall of the central manifold (19) in contact with the odor during odor delivery; A drive assembly, connected to the diaphragm (27), is used to drive the diaphragm (27) to move along the inner wall of the central confluence cavity (19) so that when the odor is switched, the area of ​​the diaphragm (27) that has been in contact with the odor exits the working area and the area of ​​the diaphragm (27) that has not been in contact with the odor enters the working area. The diaphragm (27) forms an airtight isolation relationship with its inner wall in the central confluence cavity (19), so that the odor in the central confluence cavity (19) only comes into contact with the diaphragm (27).

2. The olfactory training system based on regulatory function according to claim 1, characterized in that: The diaphragm assembly includes fixed rings (20) spaced apart along the inner wall of the central manifold (19), and the two ends of the diaphragm (27) are respectively guided and engaged with the fixed rings (20) to limit the movement of the diaphragm (27) along a preset path.

3. The olfactory training system based on regulatory function according to claim 2, characterized in that: The fixing ring (20) is provided with a guide groove (22), and the edge of the diaphragm (27) slides along the guide groove (22) so that the diaphragm (27) remains in contact with the inner wall of the central manifold (19) during movement.

4. The olfactory training system based on regulatory function according to claim 2, characterized in that: The diaphragm assembly also includes a sealing ring (26), which is disposed between the diaphragm (27) and the fixing ring (20) to form an airtight isolation interface in the central manifold (19).

5. An olfactory training system based on regulatory function according to claim 4, characterized in that: The edge of the diaphragm (27) is provided with a flange (28), which slides in the limiting groove (23) to guide and limit the movement of the diaphragm (27).

6. The olfactory training system based on regulatory function according to claim 1, characterized in that: The drive assembly includes a rotating shaft assembly (34) and a rotating shaft (35). One end of the diaphragm (27) is wound around the rotating shaft assembly (34), and the other end of the diaphragm (27) is wound around the rotating shaft (35) to achieve displacement of the diaphragm (27) by rotation. The rotating shaft assembly (34) includes a drive motor and a rotating shaft, and the drive motor is used to drive the rotating shaft to rotate.

7. An olfactory training system based on regulatory function according to claim 2, characterized in that: The diaphragm assembly also includes an expansion member (24), which is disposed at the fixing ring (20) and is used to guide and support the diaphragm (27) so as to keep the diaphragm (27) flat.

8. An olfactory training system based on regulatory function according to claim 7, characterized in that: The expansion member (24) is expanded by air supplied by a small air pump (16), which is located inside the main structure (10).

9. An olfactory training system based on regulatory function according to claim 1, characterized in that: The odor input terminal (12) is provided with multiple receiving cavities (40), and the odor release terminal (11) is provided with multiple release cavities (48). Each receiving cavity (40) and each release cavity (48) are connected to the central confluence cavity (19) through a switching component.

10. An olfactory training method based on regulatory function, based on the olfactory training system based on regulatory function according to any one of claims 1-9, characterized in that, Includes the following steps: S1: Odor selection, controls the odor channel switching module to connect the selected odor channel with the central manifold and introduce the target odor into the central manifold; S2: Odor isolation, after the odor enters the central manifold, the odor only comes into contact with the surface of the double-layer membrane, preventing odor molecules from directly contacting the inner wall of the central manifold itself; S3: Diaphragm state maintenance. The diaphragm is guided and tensioned by the guide tensioning component, so that the diaphragm remains flat and in good fit during the odor output process, avoiding wrinkles or suspended areas. S4: Odor switching. Before or during the switching process, the double-layer diaphragm is driven to move along the inner wall of the central manifold, so that the diaphragm area that has been in contact with the odor leaves the working area and the diaphragm area that has not been in contact with the odor enters the working area. S5: Continuous training, repeat the above steps to achieve continuous output of multiple odors in the same olfactory training process, and keep the central confluence cavity free of odor residue between each odor.

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