Oscillation airflow generator and pulsation system

Abstract

The utility model provides an oscillation airflow generator and a pulsation system.The oscillation airflow generator comprises a generator body, a pressed part and a pressure applying assembly, and the generator body comprises a driving device and two pulsation generating structures arranged at the two ends of the driving device; accommodating cavities are formed in the pulsation generating structure, at least one air guide passage is arranged on the pulsation generating structure, and driving shafts at the two ends of the driving device extend into the corresponding accommodating cavities respectively; at least one pressure bearing piece is arranged in each containing cavity, an air cavity is formed in each pressure bearing piece, the volume of the air cavity is variable, the air cavities communicate with the outside through air guide channels, and the air cavities do not communicate with the containing cavities; and the pressure applying assembly is arranged in the accommodating cavity, is in transmission connection with the driving shaft and is used for extruding the pressed part to repeatedly deform, so that the air cavity exchanges air with the outside through the air guide passage. According to the oscillation airflow generator provided by the invention, the plurality of air bags can generate a pulse effect by extruding the pressed part.

Description

Technical Field

[0001] This disclosure generally relates to the field of automotive seat massage equipment technology, and specifically to a vibrating airflow generator and pulsation system. Background Technology

[0002] Existing car seats either lack massage functions or, if they do, rely on a motor to rotate an airbag to vibrate it and achieve a massage effect. This method involves expensive motors and installation difficulties. Another method involves repeatedly inflating and deflating the airbag, relying on changes in the gas volume to achieve a massage effect. This method has a low vibration frequency and poor massage effect. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an oscillating airflow generator and a pulsation system to solve the above problems.

[0004] The first aspect of this application provides an oscillating airflow generator, comprising:

[0005] The generator body includes a driving device and two pulsation generating structures located at both ends of the driving device; each pulsation generating structure has an internal receiving cavity and at least one air guiding passage, and the driving shafts at both ends of the driving device extend into the corresponding receiving cavities.

[0006] The pressure-receiving component is provided in at least one of the receiving cavities. The pressure-receiving component is correspondingly arranged with the air guiding passage. The pressure-receiving component has an air cavity inside and the volume of the air cavity is variable. The air cavity is connected to the outside through the air guiding passage, and the air cavity is not connected to the receiving cavity.

[0007] A pressure-applying component, which is disposed within the receiving cavity and is connected to the drive shaft, is used to repeatedly deform the pressure-receiving component so that the air cavity exchanges gas with the outside through the air guide passage.

[0008] According to the technical solution provided in the embodiments of this application, the pulsation generating structure includes a base and a gas distribution cover. The base is fixed to the end of the driving device and forms the receiving cavity inside. The end of the base away from the driving device is provided with a mounting hole for installing the pressure-bearing component. The gas distribution cover is located on the side of the pressure-bearing component away from the base, and the gas distribution cover has the gas guiding passage formed on it.

[0009] According to the technical solution provided in the embodiments of this application, the gas distribution cover includes at least a gas distribution bottom cover and a gas distribution top cover; the bottom surface of the gas distribution bottom cover abuts against the pressure-bearing component; the bottom surface of the gas distribution top cover is provided with at least one air passage partition, and the air passage partition forms an airflow passage; the top surface of the gas distribution top cover forms a first air passage communicating with one of the airflow passages, and the gas distribution bottom cover is provided with a second air passage corresponding to the first air passage, and the air guiding passage includes at least the airflow passage, the first air passage, and the second air passage.

[0010] According to the technical solution provided in the embodiments of this application, the side wall of the base is provided with a positioning hole at the end away from the driving device, and a positioning part is provided on the bottom surface of the air distribution cover corresponding to the positioning hole.

[0011] According to the technical solution provided in the embodiments of this application, both the top cover and the bottom cover of the gas distribution system are provided with trapezoidal anti-misoperation structures.

[0012] According to the technical solution provided in the embodiments of this application, the top cover, the bottom cover and the side wall of the base are provided with corresponding snap-fit ​​grooves that extend along the axis of the driving device. The snap-fit ​​grooves are provided with snap-fit ​​buckles, which tightly snap the top cover, the bottom cover and the base together.

[0013] According to the technical solution provided in the embodiments of this application, a sealing gasket is provided between the bottom cover and the top cover of the gas distribution, and a third gas passage is provided on the sealing gasket to connect the second gas passage and the airflow passage.

[0014] According to the technical solution provided in the embodiments of this application, the pressure application component includes:

[0015] A rotating component, wherein the rotating component is connected to the drive shaft via a transmission connection;

[0016] The pressure-applying component includes a drive shaft and a swinging component connected to one end of the drive shaft. The free end of the drive shaft is connected to the rotating component. The swinging component has a pressing part on its periphery, and the pressing part is connected to the pressure-receiving component.

[0017] When the rotating component rotates around the axis of the drive shaft, the transmission shaft makes a circular motion around the axis of the drive shaft, so that the extrusion part moves repeatedly in a direction parallel to the drive shaft and extrudes the pressure-receiving component.

[0018] A second aspect of this application provides a pulsating system, including an expander, an air source device, a control device, and an oscillating airflow generator as described above; the expander is hollow and has a variable volume, and the expander is connected to the air chamber located at one end of the driving device through corresponding air guide passages, and the expander is also connected to the air source device through the control device; the control device is used to control the opening and closing of the air passage between the air source device and the expander.

[0019] A third aspect of this application provides a pulsating system, including an expander, an air source device, a control device, and an oscillating airflow generator as described above; the expander is hollow and has a variable volume, and the expander is connected to the air chambers located at both ends of the driving device through corresponding air guide passages, and the expander is also connected to the air source device through the control device; the control device is used to control the opening and closing of the air passage between the air source device and the expander.

[0020] Compared with the prior art, the beneficial effects of this application are as follows: by connecting an air bag to each air passage, after the air bag is inflated once, the pressure-receiving component is repeatedly squeezed by the pressure-applying component, causing the pressure-receiving component to deform repeatedly, thereby allowing different air chambers to exchange gas with the interior of different air bags through the air passage, so as to cause multiple air bags to vibrate alternately, thereby producing a pulsating massage effect; and the air passages at both ends of the drive device can be connected to the same air bag, so that the two air chambers exchange gas with the interior of one air bag, increasing the vibration amplitude of the air bag, thereby enhancing the pulsating massage effect. Attached Figure Description

[0021] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the oscillating airflow generator provided in Example 1;

[0023] Figure 2 for Figure 1 The front view of the oscillating airflow generator shown;

[0024] Figure 3 for Figure 2 A cross-sectional view of the oscillating airflow generator shown;

[0025] Figure 4 for Figure 1 The exploded view of the oscillating airflow generator shown;

[0026] Figure 5 This is a schematic diagram of the structure of the valve top cover;

[0027] Figure 6 for Figure 5 A schematic diagram of the bottom surface of the gas distribution cap shown;

[0028] Figure 7 This is a schematic diagram of the structure of the air distribution bottom cover;

[0029] Figure 8 for Figure 7 A schematic diagram of the top surface of the gas distribution cover shown;

[0030] Figure 9 This is a schematic diagram of the sealing gasket structure;

[0031] Figure 10 for Figure 9 A schematic diagram of the top surface of the sealing gasket shown;

[0032] Figure 11 This is a schematic diagram of the pulsation system provided in Example 2;

[0033] Figure 12 This is a schematic diagram of the working principle of the pulsation system provided in Example 2;

[0034] Figure 13 This is a schematic diagram of the pulsation system provided in Example 3;

[0035] Figure 14 The diagram shows the working principle of the pulsation system provided in Example 3.

[0036] Reference numerals: 1. Drive unit; 2. Pulsation generating structure; 3. Receiving cavity; 4. Air guide passage; 5. Pressure-bearing component; 6. Air chamber; 7. Base; 8. Air distribution cover; 9. Air distribution bottom cover; 10. Air distribution top cover; 11. Air path partition; 12. Airflow passage; 13. First air path; 14. Second air path; 15. Positioning hole; 16. Positioning part; 17. Anti-misalignment structure; 18. Snap-fit ​​groove; 19. Snap-fit ​​buckle; 20. Rotating component; 21. Drive shaft; 22. Swinging component; 23. Extrusion part; 24. Expansion component; 25. Air source device; 26. Control device; 27. External interface; 28. Sealing gasket; 29. ​​Third air path; 30. Positioning pin; 31. Positioning post; 32. Through hole; 33. Oscillating airflow generator. Detailed Implementation

[0037] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] Example 1

[0040] Please refer to Figures 1-10 This embodiment provides an oscillating airflow generator, comprising:

[0041] The generator body includes a drive device 1 and two pulsation generating structures 2 located at both ends of the drive device 1; each pulsation generating structure 2 has a receiving cavity 3 inside and at least one air guiding passage 4 on it; the drive shafts at both ends of the drive device 1 extend into the corresponding receiving cavity 3.

[0042] The pressure receiving component 5 is provided in at least one of the receiving cavities 3. The pressure receiving component 5 is correspondingly provided with the air guiding passage 4. The pressure receiving component 5 is provided with an air cavity 6 inside, and the volume of the air cavity 6 is variable. The air cavity 6 is connected to the outside through the air guiding passage 4, and the air cavity 6 is not connected to the receiving cavity 3.

[0043] A pressure-applying component is disposed within the receiving cavity 3 and is connected to the drive shaft for repeatedly deforming the pressure-receiving component 5, so that the air cavity 6 exchanges gas with the outside through the air guide passage 4.

[0044] Specifically, such as Figures 1-3 As shown, the driving device 1 is a dual-axis motor, with two driving shafts respectively located at its two ends. Each end of the driving device 1 has a pulse generating structure 2. Each pulse generating structure 2 has at least one pressure-receiving member 5 within its receiving cavity 3. The pressure-receiving member 5 is made of an elastic material; optionally, it is a rubber cup. By fastening it to the inner wall of the pulse generating structure 2, an air cavity 6 is formed inside the pressure-receiving member 5. The air cavity 6 is not connected to the receiving cavity 3. Each pulse generating structure 2 has at least one air guiding passage 4, the number of which corresponds to the number of pressure-receiving members 5. One end of each air guiding passage 4 connects to the outside of the pulse generating structure 2, and the other end connects to the air cavity 6. The pressure-receiving member 5 and the air guiding passage 4 cooperate to form a pulse unit. By repeatedly squeezing the pressure-receiving member 5, the air cavity 6 can frequently exchange gas with the outside through the air guiding passage 4, thereby generating a pulsed airflow. In this embodiment, as... Figure 4As shown, each of the receiving cavities 3 is provided with four pressure-receiving components 5, and correspondingly, four air-guiding passages 4 are also provided. The entire oscillating airflow generator has a total of eight pressure-receiving components 5 and eight air-guiding passages 4. A pressure-applying component is provided in each receiving cavity 3 and is driven by the drive shaft of the drive device 1. Under the driving action of the drive device 1, the pressure-applying component cyclically and repeatedly squeezes different pressure-receiving components 5 in the same receiving cavity 3, thereby causing different pulsating units to generate pulsating airflow in sequence.

[0045] By connecting an air bag to one end of the air passage 4 that communicates with the outside, gas exchange occurs between the air chamber 6 and the gas inside the air bag, causing the air bag to repeatedly contract and expand, thereby achieving a pulsating massage function without the need for repeated inflation and deflation of the air bag via an air source. Since the oscillating airflow generator provided in this embodiment has pulsating units composed of pressure-bearing components 5 and air passage 4 at both ends, a single oscillating airflow generator can drive a larger number of air bags to achieve a pulsating effect. Furthermore, two pulsating units located at opposite ends of the driving device 1 can be connected to one air bag, allowing two pulsating units to drive one air bag, reducing the number of air bags and thus enhancing the pulsating effect of the air bag.

[0046] Furthermore, the pulsation generating structure 2 includes a base 7 and an air distribution cover 8. The base 7 is fixed to the end of the driving device 1 and forms the receiving cavity 3 inside. The end of the base 7 away from the driving device 1 is provided with a mounting hole for installing the pressure-bearing component 5. The air distribution cover 8 is located on the side of the pressure-bearing component 5 away from the base 7, and the air distribution cover 8 has the air guiding passage 4 formed on it.

[0047] Specifically, such as Figure 3 As shown, the pulsation generating structure 2 is a housing, consisting of a base 7 and an air distribution cover 8. The base 7 serves as the main body of the housing, with the receiving cavity 3 located inside. The base 7 is fixed to the end of the driving device 1, and its bottom surface is penetrated by the drive shaft of the driving device 1. A mounting hole is provided at the end of the base 7 away from the driving device 1, where the pressure-bearing component 5 is placed. The pressure-bearing component 5 is located within the mounting hole, with its opening facing away from the driving device 1. The air distribution cover 8 serves as the top cover of the housing, covering the side of the pressure-bearing component 5 away from the base 7. The bottom surface of the air distribution cover 8 engages with the opening of the pressure-bearing component 5 to form the air chamber 6. An air guiding passage 4 is formed on the air distribution cover 8, penetrating both the bottom and top surfaces and corresponding to the position of the air chamber 6.

[0048] Furthermore, the air distribution cover 8 includes at least an air distribution bottom cover 9 and an air distribution top cover 10; the bottom surface of the air distribution bottom cover 9 abuts against the pressure-bearing member 5; the bottom surface of the air distribution top cover 10 is provided with at least one air passage partition 11, and the air passage partition 11 forms an airflow passage 12; the top surface of the air distribution top cover 10 forms a first air passage 13 communicating with one of the airflow passages 12, and the air distribution bottom cover 9 is provided with a second air passage 14 corresponding to the first air passage 13; the air guiding passage 4 includes at least the airflow passage 12, the first air passage 13 and the second air passage 14.

[0049] Specifically, such as Figures 4-10 As shown, the bottom surface of the air distribution top cover 10 is recessed to form a first recessed groove, and the top surface of the air distribution bottom cover 9 is recessed to form a second recessed groove. The air distribution top cover 10 and the air distribution bottom cover 9 are closed so that the first recessed groove and the second recessed groove cooperate to form a cavity. The bottom surface of the air distribution top cover 10 is also provided with an air passage partition 11, which extends into the cavity. An airflow passage 12 is formed in the air passage partition 11, and the number of airflow passages 12 matches the number of pressure-bearing components 5. The top surface of the air distribution cover 10 is provided with external interfaces 27, the same number as the number of pressure-receiving components 5. The air distribution cover 10 has first air passages 13, the same number as the number of external interfaces 27. One end of each first air passage 13 passes through the bottom surface of the air distribution cover 10 and communicates with the airflow passage 12, while the other end passes through the external interface 27, which communicates with the air bag. Optionally, the external interface 27 can be in the form of an air nozzle, an interface with a quick-connect structure, or an opening directly formed on the top surface of the air distribution cover 10. The air distribution bottom cover 9 covers the end of the base 7 away from the driving device 1 and abuts against the pressure-receiving component 5. The air distribution bottom cover 9 is provided with a plurality of second air passages 14 corresponding one-to-one with the first air passages 13. Each second air passage 14 passes through the top and bottom surfaces of the air distribution bottom cover 9, with one end communicating with the airflow passage 12 and the other end communicating with the air chamber 6. The process by which gas enters the air chamber 6 from the air bag is as follows: gas enters the airflow passage 12 through the first air passage 13, and then enters the air chamber 6 through the second air passage 14 after passing through the airflow passage 12; the process by which gas enters the air bag from the air chamber 6 is the reverse of this process.

[0050] Furthermore, a sealing gasket 28 is provided between the bottom cover 9 and the top cover 10, and a third air passage 29 is provided on the sealing gasket 28 to connect the second air passage 14 and the airflow passage 12.

[0051] Specifically, the air distribution cover 8 also includes a sealing gasket 28, which is disposed within the second recess. A third air passage 29 is provided on the sealing gasket 28 corresponding to the second air passage 14, penetrating through it. One end of the third air passage 29 is connected to the second air passage 14, and the other end is connected to the airflow passage 12. The third air passage 29, together with the airflow passage 12, the first air passage 13, and the second air passage 14, forms the air guiding passage 4. By providing the sealing gasket 28, the airtightness of the air distribution top cover 10 and the air distribution bottom cover 9 after they are closed is enhanced.

[0052] Furthermore, a positioning hole 15 is provided on the side wall of the base 7 away from the drive device 1, and a positioning part 16 is provided on the bottom surface of the air distribution cover 9 corresponding to the positioning hole 15.

[0053] Specifically, such as Figure 4 As shown, by providing a positioning hole 15 on the base 7 and a corresponding positioning part 16 on the air distribution cover 9, it is easier to position the air distribution cover 8 and the base 7 during installation, and it can also prevent the air distribution cover 8 and the base 7 from being misaligned.

[0054] Furthermore, both the top cover 10 and the bottom cover 9 of the air distribution system are provided with trapezoidal anti-misoperation structures 17.

[0055] Specifically, such as Figures 4-10 As shown, the anti-misalignment structure 17 on the top cover 10 is formed by the gas path partition 11, and the anti-misalignment structure 17 on the bottom cover 9 is a trapezoidal structure protruding from the bottom of the second recess. In addition, the sealing gasket 28 is also provided with an anti-misalignment structure 17. The anti-misalignment structure 17 on the sealing gasket 28 is a trapezoidal through hole penetrating the sealing gasket 28. The anti-misalignment structure 17 is used to facilitate the installation of the top cover 10, the bottom cover 9 and the sealing gasket 28, and at the same time prevent the three from being misaligned.

[0056] In addition, the top cover 10 of the air distribution system is provided with a positioning pin 30, the bottom cover 9 of the air distribution system is provided with a positioning post 31 corresponding to the positioning pin 30, and the sealing gasket 28 is provided with a through hole 32 corresponding to the positioning pin 30 and the positioning post 31.

[0057] Furthermore, the side walls of the top cover 10, the bottom cover 9, and the base 7 are provided with corresponding snap-fit ​​grooves 18 that extend along the axis of the drive device 1. The snap-fit ​​grooves 18 are provided with snap-fit ​​buckles 19, which tightly snap the top cover 10, the bottom cover 9, and the base 7 together.

[0058] Specifically, such as Figure 4As shown, the four side walls of the top cover 10, the bottom cover 9, and the base 7 are recessed inward to form snap-fit ​​grooves 18. The snap-fit ​​buckles 19 are placed inside the snap-fit ​​grooves 18 and are tightened and snapped together by the bent snap-fit ​​parts provided at both ends.

[0059] Furthermore, the pressure application component includes:

[0060] Rotating component 20, which is connected to the drive shaft via a transmission connection;

[0061] The pressure-applying component includes a drive shaft 21 and a swinging component 22 connected to one end of the drive shaft 21. The free end of the drive shaft 21 is connected to the rotating component 20. The swinging component 22 is provided with a pressing part 23 on its periphery. The pressing part 23 is fixed on the pressure-receiving component 5.

[0062] When the rotating member 20 rotates around the axis of the drive shaft, the transmission shaft 21 makes a circular motion around the axis of the drive shaft, so that the pressing part 23 moves repeatedly along a path parallel to the drive shaft and presses the pressure member 5.

[0063] Specifically, such as Figure 3 As shown, the pressure-applying assembly is located between the pressure-receiving component 5 and the drive shaft of the drive device 1. The rotating component 20 is a torsion shaft, the oscillating component 22 is an oscillating disc, and the same number of extrusion parts 23 as the pressure-receiving component 5 are arranged on the outer periphery of the oscillating component 22. The extrusion parts 23 are annular and sleeved on the end of the pressure-receiving component 5 away from the air distribution bottom cover 9, and are fixed to the pressure-receiving component 5. The rotating component 20 and the oscillating component 22 are both coaxially arranged with the drive shaft of the drive device 1. The rotating component 20 is drive-connected to the drive shaft of the drive device 1. An eccentric mounting hole is provided on the top surface of the rotating component 20. One end of the drive shaft 21 extends into the mounting hole and can rotate relative to the mounting hole within the mounting hole. The rotation direction is around the axis of the drive shaft 21 itself. The other end of the drive shaft 21 is inclined towards the axis of the oscillating component 22 and is fixedly connected to the center of the oscillating component 22.

[0064] When the drive shaft of the drive device 1 rotates, it drives the rotating member 20 to rotate around the axis of the drive shaft of the drive device 1. When the rotating member 20 rotates, it drives the transmission shaft 21 to make a circular motion around the axis of the drive shaft of the drive device 1. This causes the oscillating member 22 to rotate with the transmission shaft 21. The extrusion part 23 located on the peripheral edge of the oscillating member 22 swings up and down in the vertical direction shown in the figure, thereby repeatedly extruding the pressure member 5, so that the pressure member 5 repeatedly contracts and expands, achieving the effect of generating a pulsating airflow.

[0065] Example 2

[0066] refer to Figures 11-12 This embodiment provides a pulsating system, including an expansion member 24, an air source device 25, a control device 26, and an oscillating airflow generator 33 as described in Embodiment 1; the expansion member 24 is hollow and has a variable volume, and the expansion member 24 is connected to the air chamber 6 located at one end of the driving device 1 through a corresponding air guide passage 4, and the expansion member 24 is also connected to the air source device 25 through the control device 26; the control device 26 is used to control the opening and closing of the air passage between the air source device 25 and the expansion member 24.

[0067] Specifically, the expansion member 24 is made of an elastic material, is hollow inside, and has a connector port. Optionally, the expansion member 24 is an air bag. The air source device 25 is used to inflate the expansion member 24. Optionally, the air source device 25 is an air pump. The control device 26 includes an air inlet and multiple air outlets. An air valve is provided at the air outlet position. The air inlet is connected to the air source device 25 through an air pipe, and the air outlets are connected to the connector port of the expansion member 24 through air pipes. Each air outlet corresponds to one expansion member 24. By opening different air valves, different expansion members 24 can be inflated or deflated. The air pipe connecting the expansion member 24 and the air outlet is also connected to the external interface 27 on the oscillating airflow generator 33. Since the oscillating airflow generator 33 provided in Embodiment 1 has a total of eight external interfaces 27, by providing pulsating airflow to the eight expansion members 24, the eight expansion members 24 can simultaneously achieve a pulsating effect. By placing different expansion members 24 in different positions, different positions such as the waist, back, and neck can be massaged.

[0068] The working process of the pulsation system provided in this embodiment is as follows:

[0069] First, the air source device 25 is turned on to supply air to the control device 26. Then, the corresponding air valve of the expansion member 24, which is required to achieve a pulsating effect, is opened, thereby inflating the corresponding expansion member 24 and the air passage 4 between it and the air chamber 6. After inflation is complete, the air valve and the air source device 25 are closed. The drive device 1 is turned on, and the pressure application component is driven by the drive device 1 to repeatedly squeeze the pressure receiving member 5, thereby causing multiple pressure receiving members 5 to generate a pulsating effect in sequence. By adjusting the rotation speed of the drive device 1, the expansion member 24 can be controlled to generate a pulsating effect of different frequencies. After the massage is finished, the air source device 25 and the air valve are turned on to deflate the expansion member 24. If not all expansion members 24 are inflated, the uninflated expansion members 24 will also exchange gas with the corresponding air chamber 6. Although this will not cause the expansion member 24 to generate a pulsating effect, the gas exchange can reduce the internal temperature of the oscillating airflow generator 33 and prevent the oscillating airflow generator 33 from overheating.

[0070] Through program control, it is possible to first inflate a portion of the expansion components 24, and after the portion of the expansion components 24 has been working for 3-5 seconds, deflate the expansion components 24 through the air source device 25 and the air valve. Then, inflate another portion of the expansion components 24 and continue to make the other portion of the expansion components 24 work for 3-5 seconds. Repeating this process can achieve cyclical massage of different parts of the body.

[0071] Example 3

[0072] refer to Figures 13-14 This embodiment provides another pulsating system, including an expansion member 24, an air source device 25, a control device 26, and an oscillating airflow generator 33 as described in Embodiment 1; the expansion member 24 is hollow and has a variable volume, and the expansion member 24 is connected to the air chamber 6 located at one end of the driving device 1 through the corresponding air guide passage 4, and the expansion member 24 is also connected to the air source device 25 through the control device 26; the control device 26 is used to control the opening and closing of the air passage between the air source device 25 and the expansion member 24.

[0073] Specifically, the pulsation system provided in this embodiment is identical to that in Embodiment 2 and will not be repeated here. The difference lies in that each of the expansion members 24 is connected to two external interfaces 27, which are respectively located at both ends of the driving device 1. The two external interfaces 27 emit pulsating airflow at the same frequency. That is, in this embodiment, four expansion members 24 can be connected through eight external interfaces 27. By using two pulsation units to generate a pulsating effect in one expansion member 24, although the number of expansion members 24 is reduced, the pulsating effect generated by each expansion member 24 is stronger, thus providing a stronger pulsating massage effect.

[0074] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An oscillating airflow generator, characterized in that, include: The generator body includes a drive device (1) and two pulsation generating structures (2) located at both ends of the drive device (1); the pulsation generating structure (2) has a receiving cavity (3) inside, and at least one air guide passage (4) is provided on the pulsation generating structure (2); the drive shafts at both ends of the drive device (1) extend into the corresponding receiving cavity (3); The pressure receiving component (5) is provided in at least one of the receiving cavities (3). The pressure receiving component (5) is correspondingly provided with the air guiding passage (4). The pressure receiving component (5) is provided with an air cavity (6) inside, and the volume of the air cavity (6) is variable. The air cavity (6) is connected to the outside through the air guiding passage (4), and the air cavity (6) is not connected to the receiving cavity (3). The pressure application component is located in the receiving cavity (3) and is connected to the drive shaft for repeatedly deforming the pressure-receiving component (5) so that the air cavity (6) can exchange gas with the outside through the air guide passage (4).

2. The oscillating airflow generator according to claim 1, characterized in that, The pulsation generating structure (2) includes a base (7) and a gas distribution cover (8). The base (7) is fixed to the end of the driving device (1) and forms the receiving cavity (3) inside. The end of the base (7) away from the driving device (1) is provided with a mounting hole for installing the pressure-bearing component (5). The gas distribution cover (8) is located on the side of the pressure-bearing component (5) away from the base (7), and the gas distribution cover (8) has the gas guiding passage (4).

3. The oscillating airflow generator according to claim 2, characterized in that, The gas distribution cover (8) includes at least a gas distribution bottom cover (9) and a gas distribution top cover (10); the bottom surface of the gas distribution bottom cover (9) abuts against the pressure-bearing member (5); the bottom surface of the gas distribution top cover (10) is provided with at least one air passage partition (11), and the air passage partition (11) forms an airflow passage (12); the top surface of the gas distribution top cover (10) forms a first air passage (13) communicating with one of the airflow passages (12), and the gas distribution bottom cover (9) is provided with a second air passage (14) corresponding to the first air passage (13), and the air guiding passage (4) includes at least the airflow passage (12), the first air passage (13) and the second air passage (14).

4. The oscillating airflow generator according to claim 3, characterized in that, The side wall of the base (7) is provided with a positioning hole (15) at the end away from the drive device (1), and a positioning part (16) is provided on the bottom surface of the air distribution cover (9) corresponding to the positioning hole (15).

5. The oscillating airflow generator according to claim 4, characterized in that, Both the top cover (10) and the bottom cover (9) of the air distribution system are provided with trapezoidal anti-misoperation structures (17).

6. The oscillating airflow generator according to claim 5, characterized in that, The side walls of the top cover (10), the bottom cover (9) and the base (7) are provided with corresponding snap-fit ​​grooves (18) that extend along the axis of the drive device (1). The snap-fit ​​grooves (18) are provided with snap-fit ​​buckles (19), which tightly snap the top cover (10), the bottom cover (9) and the base (7) together.

7. The oscillating airflow generator according to claim 6, characterized in that, A sealing gasket (28) is provided between the bottom cover (9) and the top cover (10), and a third air passage (29) is provided on the sealing gasket (28) to connect the second air passage (14) and the airflow passage (12).

8. The oscillating airflow generator according to any one of claims 1-7, characterized in that, The pressure application component includes: Rotating component (20), the rotating component (20) is connected to the drive shaft in a transmission manner; The pressure-applying component includes a drive shaft (21) and a swing component (22) connected to one end of the drive shaft (21). The free end of the drive shaft (21) is connected to the rotating component (20). The swing component (22) is provided with a pressing part (23) around its periphery. The pressing part (23) is connected to the pressure-receiving component (5). When the rotating part (20) rotates around the axis of the drive shaft, the transmission shaft (21) makes a circular motion around the axis of the drive shaft, so that the pressing part (23) moves repeatedly in a direction parallel to the drive shaft and presses the pressure member (5).

9. A pulsating system, characterized in that, It includes an expansion member (24), an air source device (25), a control device (26), and an oscillating airflow generator (33) as described in any one of claims 1-8; the expansion member (24) is hollow inside and has a variable volume, and the expansion member (24) is connected to the air chamber (6) located at one end of the driving device (1) through the corresponding air guide passage (4), and the expansion member (24) is also connected to the air source device (25) through the control device (26); the control device (26) is used to control the opening and closing of the air passage between the air source device (25) and the expansion member (24).

10. A pulsating system, characterized in that, It includes an expansion member (24), an air source device (25), a control device (26), and an oscillating airflow generator (33) as described in any one of claims 1-8; the expansion member (24) is hollow inside and has a variable volume, and the expansion member (24) is connected to the air chambers (6) located at both ends of the driving device (1) through the corresponding air guide passages (4), and the expansion member (24) is also connected to the air source device (25) through the control device (26); the control device (26) is used to control the opening and closing of the air passage between the air source device (25) and the expansion member (24).

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