Pneumatic oscillator, automobile seat pneumatic system, multi-pump pneumatic apparatus, and air pressure rhythmical massage system

Abstract

Provided are a pneumatic oscillator, an automobile seat pneumatic system, a multi-pump pneumatic apparatus, and an air pressure rhythmical massage system. The pneumatic oscillator comprises: a housing (1), wherein the housing is internally provided with a first space, at least two airflow passages (2) are arranged on the housing, and the airflow passages allow the first space to be in communication with the ambient atmosphere, wherein at least two pneumatic units are arrange in the first space, each pneumatic unit corresponds to one airflow passage (2), the pneumatic unit comprises at least one air guidance passage (3) and at least one actuation member (4), the actuation member (4) is provided with an actuation inner cavity (4-1), and the actuation inner cavity (4-1) is in communication with the airflow passage (2) via the air guidance passage (3); a compression assembly (5-1), wherein the compression assembly (5-1) is mounted on one side of the actuation member (4), the compression assembly (5-1) comprises at least two fixation parts (5-21), and each fixation part (5-21) corresponds to one actuation member (4); and a driving apparatus, wherein the driving apparatus is mounted at the bottom of the housing and is used for driving the fixation parts (5-21) to perform reciprocating movement to repeatedly compress the actuation member (4). The pneumatic oscillator achieves high and low frequency vibration effects via air pressure oscillations.

Description

Pneumatic oscillator, car seat pneumatic system, group pump pneumatic device and air pressure rhythmic massage system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 2024103778634, filed with the Chinese Patent Office on March 29, 2024, entitled “A Pneumatic Oscillator and a Pneumatic System for Automobile Seats”;

[0003] And the priority of the Chinese patent application with application number 2024103778649 and titled “A group pump pneumatic device and massage system” filed with the China Patent Office on March 29, 2024, the entire contents of which are incorporated by reference in this disclosure. Technical Field

[0004] The present application generally relates to the technical field of automobile seats, and in particular to a pneumatic oscillator, an automobile seat pneumatic system, a group pump pneumatic device, and an air pressure rhythmic massage system. Background Art

[0005] Existing car seats may not have a massage function, while some do. This function is achieved by inflating an air bag and then using the rotation of a motor to vibrate the air bag, thus achieving a massage effect. Another existing massage function is achieved by inflating and deflating the air bag, relying on the change in gas volume within the bag to achieve a massage effect. However, these car seats with massage functions have problems such as high cost, difficult installation, and poor massage effect.

[0006] Application Contents

[0007] In view of the above-mentioned defects or deficiencies in the prior art, the embodiments of the present application provide a pneumatic oscillator, a car seat pneumatic system, a group pump pneumatic device and a pneumatic rhythmic massage system to solve the above-mentioned problems.

[0008] In a first aspect, an embodiment of the present application provides a pneumatic oscillator, comprising:

[0009] a housing, wherein a first space is defined within the housing, and at least two airflow passages are defined on the housing, the airflow passages communicating with the first space and the ambient atmosphere; at least two pneumatic units are defined within the first space, each of the pneumatic units corresponding to one of the airflow passages, and different pneumatic units independently inlet and outlet air;

[0010] The pneumatic unit includes at least one air guide passage and at least one actuating member, wherein the actuating member is provided with an actuating inner cavity with a variable volume, and the actuating inner cavity is connected to the air flow passage through the air guide passage;

[0011] A driving assembly is installed at the bottom of the housing and is used to drive the actuator to perform cyclic reciprocating motion.

[0012] Optionally, the driving assembly includes an extrusion assembly and a driving device for driving the extrusion assembly, the extrusion assembly is installed on the side of the actuator away from the air guide passage, the extrusion assembly includes at least two fixed parts, each of the fixed parts is connected to a corresponding actuator; the driving device is arranged on the side of the extrusion assembly away from the actuator.

[0013] Optionally, the housing further includes an air distribution cover, the air guide passage is provided on the air distribution cover, and the air distribution cover is used to connect each of the pneumatic units with one of the air flow passages.

[0014] Optionally, the outer shell includes a bottom shell body and an upper cover body that are detachably connected, and the gas distribution cover body is arranged between the upper cover body and the bottom shell body; the air guide path includes at least two conducting parts, and the conducting parts pass through the gas distribution cover body and connect the air flow path and the actuating inner cavity.

[0015] Optionally, a first seal is provided between the upper cover and the gas distribution cover. The first seal is made of elastic material. A through portion corresponding to the position of the conducting portion is provided on the first seal. The through portion penetrates the first seal and cooperates with the conducting portion to form the gas conducting passage.

[0016] Optionally, the air flow passage is tapered, and an inner diameter of an end away from the first space is smaller than an inner diameter of an end close to the first space.

[0017] Optionally, the extrusion assembly includes:

[0018] a rotating member, the rotating member being drivingly connected to an output shaft of the driving device;

[0019] An extrusion member, the extrusion member includes a transmission shaft and a swing member connected to one end of the transmission shaft, the free end of the transmission shaft is in transmission connection with the rotating member, the fixing portion is provided on the circumference of the swing member, and the fixing portion is sleeved on the actuating member;

[0020] When the rotating member rotates around the axis of the output shaft, the transmission shaft performs a circular motion around the axis of the output shaft, so that the fixing portion repeatedly moves in a direction parallel to the axis of the output shaft.

[0021] Optionally, an air port is provided on the bottom shell, and the gas distribution cover and the bottom shell form a standby pressure space, and the standby pressure space is connected to the ambient atmosphere only through the air port.

[0022] Optionally, a second sealing member is provided on the bottom shell body near the driving device side, and the second sealing member is used to seal the gap between the bottom shell body and the driving device.

[0023] In the second aspect, an embodiment of the present application also provides a car seat pneumatic system, including an airbag, an air source device, a control device and the pneumatic oscillator as described above; the air source device is connected to the airbag; the airbag is connected to the actuating inner cavity through the air flow passage and the air guide passage; the control device is electrically connected to the air source device and the drive device respectively.

[0024] In a third aspect, an embodiment of the present application also provides a car seat pneumatic system, comprising an airbag, an air source device, a control device and the pneumatic oscillator as described above; the air source device is connected to the airbag, and is connected to the standby pressure space through the air port; the airbag is connected to the actuating inner cavity through the air flow passage and the air guide passage; the control device is electrically connected to the air source device and the drive device, respectively.

[0025] Optionally, the gas source device is connected to the gas port through a pipeline, and a buffer chamber is provided on the pipeline.

[0026] In a fourth aspect, an embodiment of the present application provides a group pump pneumatic device, comprising:

[0027] a device housing, wherein a first space is provided in the device housing and the first space is in communication with the ambient atmosphere; at least two air outlets are provided on the device housing, and at least two pneumatic units are provided in the device housing, with each air outlet corresponding to one of the pneumatic units;

[0028] A driving assembly, connected to the pneumatic unit, for driving the pneumatic unit to operate;

[0029] The pneumatic unit comprises:

[0030] At least one actuating member, wherein the actuating member is provided with an air storage chamber and the volume of the air storage chamber is variable, and when the drive assembly is in operation, the actuating member is switched between a natural state and a compressed state;

[0031] an air guiding passage, one end of the air guiding passage being in communication with at least one of the air storage cavities, and the other end of the air guiding passage being in communication with the air outlet;

[0032] An air intake passage is connected to the actuating member and the first space; the air intake passage is unidirectionally conducted from the first space to the air storage chamber.

[0033] Optionally, the device housing comprises:

[0034] The housing and the air distribution cover form the first space after the air distribution cover and the housing are covered together; the air guide passage and the air intake passage are formed on the air distribution cover; the actuator abuts against the edge of the housing close to the air distribution cover and abuts against the side of the air distribution cover close to the housing.

[0035] Optionally, the gas distribution cover includes an upper cover, a lower cover and a seal, the lower cover is arranged between the upper cover and the shell, the seal is arranged between the upper cover and the lower cover, a second space is formed between the upper cover and the seal, and the seal is made of elastic material; the air guide passage is arranged on the upper cover, and the air guide passage is connected to the actuator through a first connecting part, and the first connecting part passes through the seal and the lower cover.

[0036] Optionally, the first connecting portion includes:

[0037] a first air guide hole, the first air guide hole being provided on the sealing member and passing through the sealing member;

[0038] a second air guide hole, the second air guide hole being formed on the lower cover and passing through the lower cover, the second air guide hole being connected to the first air guide hole and the actuating member;

[0039] An air path isolation wall is provided on a side of the upper cover body close to the sealing member, and the air path isolation wall abuts against the sealing member; the air path isolation wall communicates with the first air guide hole and the air guide path.

[0040] Optionally, a partition is provided on the upper cover body, and the partition divides the second space into at least two mutually unconnected air inlet cavities; the air inlet passage includes an air inlet cavity, a second connecting portion and a third connecting portion, the second connecting portion connects the air inlet cavity and the air storage cavity, and the third connecting portion connects the air inlet cavity and the first space; the second connecting portion and the third connecting portion both pass through the seal and the shell, and the second connecting portion is unidirectionally conducted from the air inlet cavity to the air storage cavity.

[0041] Optionally, the second connecting portion includes: a first air inlet hole, the first air inlet hole is provided on the sealing member, a bending portion is provided on a side wall of the first air inlet hole, the bending portion and the sealing member are an integral structure, and the bending portion is bendable relative to the sealing member;

[0042] a second air inlet hole, the second air inlet hole being provided on the housing, the side wall of the second air inlet hole being convex to form a protrusion, the free end of the protrusion being in an arc shape bent away from the sealing member;

[0043] A limiting portion is provided on a side of the upper cover body close to the sealing member, the limiting portion abuts against a position where the bending portion is not connected to the sealing member, and a side wall of the limiting portion is opened to connect the air inlet cavity and the first air inlet hole.

[0044] Optionally, the inner wall of the air guiding passage is tapered, and the inner diameter of the air guiding passage at one end close to the sealing component is larger than the inner diameter of the air guiding passage at one end away from the sealing component.

[0045] Optionally, the drive assembly includes: a drive device, the drive device being mounted on the outer bottom of the housing;

[0046] a rotating member disposed in the first space and drivingly connected to an output shaft of the driving device;

[0047] an extrusion member disposed in the first space, comprising a transmission shaft and a swinging member connected to one end of the transmission shaft, wherein the free end of the transmission shaft is in transmission connection with the rotating member, and a connecting portion is provided on a circumferential side of the swinging member, wherein the connecting portion is sleeved on the actuating member;

[0048] When the rotating member rotates around the axis of the output shaft, the transmission shaft performs a circular motion around the axis of the output shaft, so that the connecting portion repeatedly moves in a direction parallel to the axis of the output shaft.

[0049] In the fifth aspect, the embodiment of the present application also provides an air pressure rhythmic massage system, comprising at least two airbags, an air source device, a controller and the group pump pneumatic device as described above, each of the airbags being connected to the air source device and one of the air outlets respectively, and the air source device being used to inflate the airbags; the airbags are hollow inside and have an elastic outer wall, and the gas enters and exits the actuator through the air outlet and the air guide passage; a valve body is provided inside the controller, each of the valve bodies being connected to one of the airbags, and the valve body has an open state and a closed state.

[0050] Compared with the existing technology, the beneficial effects of the embodiments of the present application include, for example:

[0051] In the embodiment of the present application, at least two airflow passages are provided on the housing, and at least two pneumatic units are provided within the housing. Each pneumatic unit corresponds to one airflow passage. Each pneumatic unit is provided with a first air guide passage and at least one actuating member. The actuating member has an actuating inner cavity, which is connected to the airflow passage through the first air guide passage. When an airbag is connected to each airflow passage, the driving device drives the fixed portion to cyclically move, thereby rapidly and repeatedly inflating and deflating the airbag, causing the airbag to vibrate, thereby producing a vibration massage effect. The overall cost is low, the installation is simple, and the massage effect is good.

[0052] The embodiment of the present application is provided with a plurality of pneumatic units, each of which is composed of an actuator, a second air guide passage and an air intake passage. When the second air guide passage is connected to an air bag, the actuator in each pneumatic unit is quickly and repeatedly squeezed in turn by the driving component, thereby generating gas rhythm between the actuator, the second air guide passage and the air bag, so that the air bag can be repeatedly inflated and deflated, thereby achieving the purpose of rhythmic massage; by providing a device shell and a first space inside the device shell, the first space is connected to the ambient atmosphere and the air intake passage, and the air intake passage is unidirectional, when the actuator switches from a compressed state to a natural state, the gas in the first space enters the actuator through the air intake passage, and when the actuator switches from a natural state to a compressed state, the gas is pressurized and pumped out by the actuator, thereby increasing the air pressure in the air path to enhance the rhythmic effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0054] FIG1 is a schematic structural diagram of a pneumatic oscillator provided in an embodiment of the present application;

[0055] FIG2 is a schematic cross-sectional view of the pneumatic oscillator shown in FIG1 ;

[0056] FIG3 is a schematic diagram of the gas flow of the pneumatic unit provided in an embodiment of the present application;

[0057] FIG4 is a schematic structural diagram of a first sealing member provided in an embodiment of the present application;

[0058] FIG5 is a schematic top view of the structure of the first sealing member shown in FIG4 ;

[0059] FIG6 is a schematic structural diagram of a gas distribution cover provided in an embodiment of the present application;

[0060] FIG7 is a schematic diagram of the top view of the gas distribution cover shown in FIG6;

[0061] FIG8 is a schematic structural diagram of an upper cover body provided in an embodiment of the present application;

[0062] FIG9 is a bottom view of the upper cover shown in FIG8 ;

[0063] FIG10 is a schematic structural diagram of an upper cover body provided in an embodiment of the present application;

[0064] FIG11 is a bottom view of the upper cover shown in FIG10 ;

[0065] FIG12 is a cross-sectional schematic diagram of an airflow path provided in an embodiment of the present application;

[0066] FIG13 is a schematic structural diagram of a pneumatic oscillator provided in an embodiment of the present application;

[0067] FIG14 is a schematic cross-sectional view of the pneumatic oscillator shown in FIG13;

[0068] FIG15 is a schematic diagram of the gas flow of the pneumatic unit provided in an embodiment of the present application;

[0069] FIG16 is a schematic diagram of the explosion structure of the pneumatic oscillator shown in FIG13;

[0070] FIG17 is a schematic structural diagram of a pneumatic system for a car seat provided in an embodiment of the present application;

[0071] FIG18 is a schematic diagram of the air circuit of the pneumatic system of the car seat provided in an embodiment of the present application;

[0072] FIG19 is a schematic structural diagram of a pneumatic system for a car seat provided in an embodiment of the present application;

[0073] FIG20 is a schematic diagram of the air circuit of the pneumatic system of the automobile seat provided in an embodiment of the present application;

[0074] FIG21 is a schematic structural diagram of a group pump pneumatic device provided in an embodiment of the present application;

[0075] FIG22 is a schematic cross-sectional view of the pneumatic device of the group pump shown in FIG21 , taken along a direction passing through two air guide channels;

[0076] FIG23 is a schematic diagram of gas flow in a group pump pneumatic device according to an embodiment of the present application;

[0077] FIG24 is an exploded view of the group pump pneumatic device shown in FIG21;

[0078] FIG25 is an enlarged structural diagram of point A in FIG24;

[0079] FIG26 is a schematic cross-sectional view of the pneumatic device of the group pump shown in FIG21 cut along the diagonal direction of the top surface;

[0080] FIG27 is an enlarged structural diagram of point B in FIG26;

[0081] FIG28 is a schematic diagram of the bottom surface structure of the upper cover body provided in an embodiment of the present application;

[0082] FIG29 is a schematic diagram of the top surface structure of the lower cover provided in an embodiment of the present application;

[0083] FIG30 is a schematic structural diagram of a sealing member provided in an embodiment of the present application;

[0084] FIG31 is a schematic structural diagram of a second air guide passage provided in an embodiment of the present application;

[0085] Figure 32 is a structural diagram of the air pressure rhythmic massage system provided in an embodiment of the present application.

[0086] Figure numbers: 1. Shell (device shell); 1-1. Bottom shell (shell); 1-2. Upper cover; 1-3. Standby pressure space; 2. Air flow path (second air guide path); 3. Air guide path (first connecting part); 4. Actuating member; 4-1. Actuating inner cavity (air storage cavity); 5. Extrusion assembly; 5-1. Rotating member; 5-2. Extruding member; 5-21. Fixed part (connecting part); 5-22. Transmission shaft; 5-23. Swinging member; 6-1. Driving device; 7. Gas distribution cover (lower cover); 7-1. Conducting part; 8. First sealing member (seal); 8-1. Penetrating part; 9. Air port (air inlet nozzle); 10. Second sealing member; 11. Airbag body ; 12. Air source device; 13. Control device (controller); 14. Positioning pin; 15. Positioning column hole; 16. Positioning through hole; 17. Air nozzle; 18. Air pipe; 19. Buffer chamber; 20. Pipeline; 21. Air outlet; 22. First space; 23. Drive assembly; 24. First air guide hole; 25. Second air guide hole; 26. Air path partition wall; 27. Spacer; 28. Air inlet cavity; 29. ​​Second connecting part; 30. Third connecting part; 31. First air inlet hole; 32. Bending part; 33. Second air inlet hole; 34. Protruding part; 35. Limiting part; 36. Second space; 37. Third air inlet hole; 38. Fourth air inlet hole; 39. Air inlet passage. DETAILED DESCRIPTION

[0087] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0088] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0089] Referring to FIG. 1 to FIG. 9 , this embodiment provides a pneumatic oscillator, including:

[0090] A housing 1 is provided with a first space 22 therein, and at least two air flow passages 2 are provided on the housing 1, the air flow passages 2 communicating with the first space 22 and the ambient atmosphere; at least two pneumatic units are provided in the first space 22, each of the pneumatic units corresponding to one of the air flow passages 2, and different pneumatic units independently inlet and outlet air;

[0091] The pneumatic unit includes at least one air guide passage 3 and at least one actuator 4. The actuator 4 is provided with an actuating inner cavity 4-1, and the volume of the actuating inner cavity 4-1 is variable. The actuating inner cavity 4-1 is connected to the air flow passage 2 through the air guide passage 3.

[0092] The driving component 23 is installed at the bottom of the housing 1 and is used to drive the actuator 4 to perform cyclic reciprocating motion.

[0093] Optionally, as shown in Figures 1-3, at least two air nozzles 17 are provided on the top of the housing 1. Each air nozzle 17 is provided with the air flow passage 2. One end of each air nozzle 17 is connected to the first space 22. The actuating cavity 4-1 of each pneumatic unit is connected to the corresponding air nozzle 17 via the corresponding air guide passage 3. In this embodiment, there are four air nozzles 17, four air flow passages 2, and four pneumatic units, each of which is evenly arranged circumferentially around the axis of the housing 1. During operation, the air nozzles 17 are connected to the air bag, and the drive assembly 23 drives all the actuating members 4 to perform a cyclic reciprocating motion, causing the volume of the actuating cavity 4-1 of each actuating member 4 to repeatedly change. This volume change in the actuating cavity 4-1 allows gas to repeatedly move between the actuating cavity 4-1 and the air bag, thereby causing the inflated air bag to vibrate at a high frequency, achieving a vibration massage function.

[0094] Optionally, in this embodiment, the air flow passage 2 is a cylindrical air passage, that is, the inner diameters of the air nozzles 17 at various positions are equal, so that the gas between the actuating inner cavity 4 - 1 and the connected air bag can flow unimpeded.

[0095] Optionally, the driving assembly 23 includes an extrusion assembly 5 and a driving device 6-1 for driving the extrusion assembly 5, the extrusion assembly 5 is installed on the side of the actuator 4 away from the air guide passage 3, the extrusion assembly 5 includes at least two fixed parts 5-21, each of the fixed parts 5-21 is correspondingly connected to one of the actuators 4; the driving device 6-1 is arranged on the side of the extrusion assembly 5 away from the actuator 4.

[0096] Optionally, as shown in Figures 2 and 3, the outer wall of the actuator 4 can be deformed. Optionally, the actuator 4 can be a leather cup or a piston. The outer wall of the actuator 4 is connected to the fixed portion 5-21, so that the fixed portion 5-21 reciprocates under the driving action of the driving device 6-1, and drives the actuator 4 to deform so that the actuator 4 switches between the natural state and the compressed state, thereby changing the volume of the actuating cavity 4-1.

[0097] Optionally, the drive device 6-1 is coaxially arranged with the housing 1 and fixed to the bottom of the housing 1. The drive device 6-1 is a drive motor. The output shaft of the drive device 6-1 extends into the first space 22. The extrusion assembly 5 is in driving connection with the output shaft of the drive device 6-1. By adjusting the rotational speed of the drive device 6-1, the vibration frequency of the air bag can be adjusted, thereby meeting the different massage frequency requirements of different customers. By providing the housing 1, firstly, it is used to protect the actuator 4 and the extrusion assembly 5, preventing them from being damaged; secondly, it can fix the position of the actuator 4 and the extrusion assembly 5, making it easier for the extrusion assembly 5 to squeeze the actuator 4; and thirdly, it can reduce the noise generated when the extrusion assembly 5 squeezes the actuator 4.

[0098] Optionally, the housing 1 further includes an air distribution cover 7 , the air guide passage 3 is provided on the air distribution cover 7 , and the air distribution cover 7 is used to connect each of the pneumatic units with one of the air flow passages 2 .

[0099] Optionally, as shown in Figures 6 and 7, the air distribution cover 7 is arranged between the top wall of the outer shell 1 and the pneumatic unit. The air distribution cover 7 connects the actuating inner cavity 4-1 of each pneumatic unit with the corresponding air nozzle 17, thereby making different pneumatic units independent of each other and not connected to each other, thereby avoiding mutual interference between different pneumatic units.

[0100] Optionally, the outer shell 1 includes a bottom shell body 1-1 and an upper cover body 1-2 that are detachably connected, and the gas distribution cover body 7 is arranged between the upper cover body 1-2 and the bottom shell body 1-1; the air guide path 3 includes at least two conducting parts 7-1, and the conducting parts 7-1 pass through the gas distribution cover body 7 and connect the air flow path 2 and the actuating inner cavity 4-1.

[0101] Optionally, as shown in Figures 8 and 9, the upper cover 1-2, the gas distribution cover 7, and the bottom shell 1-1 are detachably connected. Optionally, the upper cover 1-2, the gas distribution cover 7, and the bottom shell 1-1 are snap-fitted, or clamped from the outside by a metal clip that matches the shape of the shell 1. The gas nozzle 17 is arranged on a side of the upper cover 1-2 away from the first space 22, and the gas nozzle 17 extends along the axial direction of the shell 1. The gas nozzle 17 passes through the upper cover 1-2 to the side of the upper cover 1-2 away from the gas nozzle 17. The gas distribution cover 7 is arranged on the side of the upper cover 1-2 away from the gas nozzle 17. The upper cover 1-2 is provided with a positioning pin 14, and the gas distribution cover 7 is provided with a positioning column hole 15 corresponding to the positioning pin 14. The upper cover 1-2 and the gas distribution cover 7 are clamped together by the positioning pin 14 and the positioning column hole 15. At the same time, the positioning pin 14 and the positioning column hole 15 can also facilitate the positioning between the upper cover 1-2 and the gas distribution cover 7. The conductive portion 7-1 passes through the through holes on the upper and lower sides of the gas distribution cover 7. The position of the conductive portion 7-1 corresponds to the position of the gas nozzle 17. The actuating member 4 is buckled on the side of the gas distribution cover 7 away from the upper cover 1-2, and each actuating member 4 is correspondingly arranged with a conducting portion 7-1. The actuating inner cavity 4-1 is connected with a gas nozzle 17 through a conducting portion 7-1. The conducting portion 7-1 can keep the connection between each actuating inner cavity 4-1 and the gas nozzle 17 independent of each other.

[0102] Optionally, as shown in Figures 4 and 5, a first sealing member 8 is provided between the upper cover body 1-2 and the gas distribution cover body 7. The first sealing member 8 is made of elastic material. A through portion 8-1 corresponding to the position of the conducting portion 7-1 is provided on the first sealing member 8. The through portion 8-1 penetrates the first sealing member 8 and cooperates with the conducting portion 7-1 to form the gas guide passage 3.

[0103] Optionally, as shown in FIG3 , the sides of the upper cover 1-2 and the gas distribution cover 7 that are close to each other are respectively concave, so that a second space 36 is formed between the upper cover 1-2 and the gas distribution cover 7. The first sealing member 8 is arranged in the second space 36. Optionally, the first sealing member 8 is a rubber gas distribution pad. The through portion 8-1 is arranged at a position on the first sealing member 8 corresponding to the conducting portion 7-1. The through portion 8-1 is a through hole that passes through both sides of the first sealing member 8. A through portion 8-1 and a conducting portion 7-1 corresponding to each other form a passage, and a plurality of passages cooperate to form the gas guide passage 3. The first sealing member 8 is also provided with a positioning hole 16 for the positioning pin 14 to pass through. The two sides of the first sealing member 8 are tightly fitted with the upper cover body 1-2 and the gas distribution cover body 7 respectively. The purpose of setting the first sealing member 8 is to improve the sealing between the conducting portion 7-1 and the gas nozzle 17, to avoid the problem of reduced ventilation efficiency caused by leakage when the actuating cavity 4-1 exchanges gas with the outside world, and at the same time improve the airtightness between the various pneumatic units, to avoid the pneumatic influence between the various pneumatic units when the pneumatic oscillator is working.

[0104] Optionally, the pneumatic unit further includes an air intake passage 39 connecting the actuator 4 and the first space 22. The air intake passage 39 unidirectionally conducts from the first space 22 to the actuating cavity 4-1. Because the first space 22 is connected to the ambient atmosphere, the pressure within the actuator 4 decreases during compression, allowing air in the first space 22 to enter the actuator 4 through the air intake passage 39, increasing the air volume within the actuator 4 and ultimately enhancing the airbag's dynamic effect.

[0105] Optionally, the housing 1 includes a bottom housing 1-1, an upper cover 1-2, and an air distribution cover 7. The air guide passage 3 is provided on the air distribution cover 7, and the air distribution cover 7 is used to connect each pneumatic unit to an air flow passage 2. The air distribution cover 7 is disposed between the upper cover 1-2 and the bottom housing 1-1. The air guide passage 3 includes at least two conducting portions 7-1, which extend through the air distribution cover 7 and connect the air flow passage 2 and the actuating cavity 4-1. The air flow passage 2 and the air inlet passage 39 are formed on the upper cover 1-2. The actuating member 4 abuts against the edge of the bottom housing 1-1 near the upper cover 1-2 and against the side of the upper cover 1-2 near the bottom housing 1-1.

[0106] Optionally, the pneumatic oscillator also includes a first seal 8, which is arranged between the upper cover 1-2 and the gas distribution cover 7, and a second space 36 is formed between the upper cover 1-2 and the first seal 8, and the first seal 8 is made of elastic material; the air flow path 2 is arranged on the upper cover 1-2, and the air flow path 2 is connected to the actuator 4 through the air guide path 3, and the air guide path 3 runs through the first seal 8 and the gas distribution cover 7.

[0107] Optionally, the air guide passage 3 includes a through portion 8-1, a conducting portion 7-1, and an air path partition wall 26. The through portion 8-1 is formed on and extends through the first sealing member 8. The conducting portion 7-1 is formed on and extends through the gas distribution cover 7, connecting the through portion 8-1 with the actuator 4. The air path partition wall 26 is disposed on a side of the upper cover 1-2 proximal to the first sealing member 8, abutting against the first sealing member 8; the air path partition wall 26 connects the through portion 8-1 with the air flow passage 2.

[0108] Optionally, a partition 27 is provided on the upper cover body 1-2, and the partition 27 divides the second space 36 into at least two air intake cavities 28 that are not connected to each other; the air intake passage 39 includes the air intake cavity 28, the second connecting portion 29 and the third connecting portion 30, the second connecting portion 29 connects the air intake cavity 28 and the actuating inner cavity 4-1, and the third connecting portion 30 connects the air intake cavity 28 and the first space 22; the second connecting portion 29 and the third connecting portion 30 both pass through the first sealing member 8 and the bottom shell body 1-1, and the second connecting portion 29 is unidirectionally conducted from the air intake cavity 28 to the actuating inner cavity 4-1.

[0109] Optionally, the second connecting portion 29 includes a first air inlet hole 31, a second air inlet hole 33 and a limiting portion 35. The first air inlet hole 31 is provided on the first seal 8, and a bending portion 32 is provided on the side wall of the first air inlet hole 31. The bending portion 32 and the first seal 8 are an integral structure, and the bending portion 32 can be bent relative to the first seal 8. The second air inlet hole 33 is provided on the bottom shell 1-1, and the side wall of the second air inlet hole 33 bulges outward to form a protrusion 34, and the free end of the protrusion 34 is in an arc shape that bends away from the first seal 8. The limiting portion 35 is provided on the side of the upper cover 1-2 close to the first seal 8, and the limiting portion 35 abuts the position where the bending portion 32 is not connected to the first seal 8. The side wall of the limiting portion 35 is open to connect the air inlet cavity 28 and the first air inlet hole 31.

[0110] Optionally, the extrusion assembly 5 includes:

[0111] Rotating member 5-1, said rotating member 5-1 being in driving connection with the output shaft of said driving device 6-1;

[0112] An extrusion member 5-2, the extrusion member 5-2 comprising a transmission shaft 5-22 and a swinging member 5-23 connected to one end of the transmission shaft 5-22, the free end of the transmission shaft 5-22 being in transmission connection with the rotating member 5-1, the fixing portion 5-21 being provided on the circumference of the swinging member 5-23, and the fixing portion 5-21 being sleeved on the actuating member 4;

[0113] When the rotating part 5-1 rotates around the axis of the output shaft, the transmission shaft 5-22 performs a circular motion around the axis of the output shaft, so that the fixing part 5-21 moves repeatedly in a direction parallel to the axis of the output shaft.

[0114] Optionally, as shown in FIG3 , the rotating member 5-1 is a torsion shaft, the swinging member 5-23 is a swing plate, and the fixed portion 5-21 is provided on the outer peripheral side of the swinging member 5-23. The fixed portion 5-21 is annular and is sleeved on the position where the actuating member 4 extends and is fixed to the actuating member 4. The rotating member 5-1 and the swinging member 5-23 are both coaxially arranged with the driving device 6-1. The rotating member 5-1 is in transmission connection with the output shaft of the driving device 6-1, and a mounting hole is eccentrically provided on the top surface of the rotating member 5-1. One end of the transmission shaft 5-22 extends into the mounting hole and can rotate relative to the mounting hole in the mounting hole. The direction of rotation is about the axis of the transmission shaft 5-22 itself. The transmission shaft 5-22 is inclined toward the axis of the swinging member 5-23 and the other end is fixedly connected to the center of the swinging member 5-23.

[0115] When the driving device 6-1 rotates, it drives the rotating member 5-1 to rotate around the axis of the driving device 6-1. When the rotating member 5-1 rotates, it drives the transmission shaft 5-22 to make a circular motion around the axis of the driving device 6-1, thereby causing the swinging member 5-23 to rotate along with the transmission shaft 5-22. The fixed portion 5-21 located at the peripheral edge of the swinging member 5-23 swings up and down along the vertical direction in the figure, thereby repeatedly squeezing the actuating member 4 so that the actuating member 4 switches between the natural state and the compressed state.

[0116] Please refer to FIG. 10 to FIG. 12 . Optionally, in this embodiment, the air flow passage 2 is tapered, and the inner diameter of the end away from the first space 22 is smaller than the inner diameter of the end close to the first space 22 .

[0117] Optionally, in this embodiment, the airflow passage 2 is a tapered air passage, that is, the inner diameters of the airflow passage 2 at different locations are different. The inner diameter of the airflow passage 2 of this embodiment on the side away from the first space 22 is smaller than the inner diameter of the airflow passage 2 described above, and the inner diameter of the airflow passage 2 on the side close to the first space 22 is larger than the inner diameter of the airflow passage 2 described above. When the gas in the airbag flows into the actuating inner cavity 4-1, the air inlet position of the airflow passage 2 is small in size and has a fast gas flow rate, while the air outlet position is large in size and has a slow gas flow rate. When the gas in the actuating inner cavity 4-1 flows into the airbag, the air inlet position of the airflow passage 2 is large in size and has a slow gas flow rate, while the air outlet position is small in size and has a fast gas flow rate, resulting in greater airflow fluctuations in the air path between the airbag and the airflow passage 2. Therefore, the vibration amplitude of the airbag in this embodiment is greater, and the vibration effect generated is stronger.

[0118] Please refer to Figures 13 to 16. Optionally, in this embodiment, an air port 9 is provided on the bottom shell 1-1, and the air distribution cover 7 and the bottom shell 1-1 form a standby pressure space 1-3. The standby pressure space 1-3 is connected to the ambient atmosphere only through the air port 9.

[0119] Optionally, the drive device 6-1 is mounted on the bottom of the bottom shell 1-1, and the standby pressure space 1-3 is formed between the air distribution cover 7, the bottom shell 1-1, and the drive device 6-1. The bottom shell 1-1 of the pneumatic oscillator provided in this embodiment is also provided with an air inlet nozzle, one end of which is connected to the standby pressure space 1-3, and the other end forms the air port 9. The provision of the air port 9 allows the standby pressure space 1-3 to communicate with the ambient atmosphere, thereby avoiding the problem of difficulty in compressing the actuator 4 due to the pressure difference within the actuator 4 when the actuator 4 is compressed.

[0120] Optionally, a second sealing member 10 is provided on the side of the bottom shell 1 - 1 close to the driving device 6 - 1 , and the second sealing member 10 is used to seal the gap at the connection position between the bottom shell 1 - 1 and the driving device 6 - 1 .

[0121] Optionally, the second seal 10 can be made of elastic rubber material. The second seal 10 is arranged at the connection position between the drive device 6-1 and the bottom shell 1-1, and can also be arranged at the through hole position where the output shaft of the drive device 6-1 penetrates into the bottom shell 1-1, to ensure that the backup pressure space 1-3 is connected to the ambient atmosphere only through the air port 9.

[0122] Referring to Figures 17 and 18 , this embodiment provides a pneumatic system for an automobile seat, comprising an airbag 11, an air source 12, a control device 13, and the aforementioned pneumatic oscillator. The air source 12 is in communication with the airbag 11. The airbag 11 is in communication with the actuating cavity 4-1 via the airflow passage 2 and the air guide passage 3. The control device 13 is electrically connected to the air source 12 and the drive device 6-1, respectively.

[0123] Optionally, the airbag 11 is hollow and has an air inlet, which is connected to the air nozzle 17 and the air source device 12 via an air pipe 18. The air source device 12 is used to inflate the airbag 11. Optionally, the airbag 11 can be an air bag, and the air source device 12 can be an air pump. The control device 13 is provided with a control valve and a control module. The control valve is connected to the air source device 12 and the airbag 11 via the air pipe 18. The control valve is used to control the flow of gas between the air source device 12 and the airbag 11. The control module is electrically connected to the air source device 12, the drive device 6-1, and the control valve. The control module is used to control the opening and closing of the air source device 12, the drive device 6-1, and the control valve. At the same time, the control device 13 can also control the inflation rate of the air source device 12, the rotation rate of the drive device 6-1, and the valve opening size of the switch valve.

[0124] The working process of the pneumatic system provided in this embodiment is as follows: first, the airbag 11 is inflated through the air source device 12, and after the inflation is completed, the driving device 6-1 is turned on, and the driving device 6-1 drives the extrusion assembly 5 to work in a circular manner to extrude each of the actuating parts 4, thereby making each of the airbags 11 switch between the expanded state and the contracted state in turn. At this time, if each of the airbags 11 is located at different positions of the car seat, the function of pulsating massage of different positions of the seat can be achieved through one of the pneumatic oscillators.

[0125] Please refer to Figures 19 and 20. This embodiment provides a pneumatic system for a car seat, including an airbag body 11, an air source device 12, a control device 13 and a pneumatic oscillator as described in Example 3; the air source device 12 is connected to the airbag body 11, and is connected to the standby pressure space 1-3 through the air port 9; the airbag body 11 is connected to the actuating inner cavity 4-1 through the air flow passage 2 and the air guide passage 3; the control device 13 is electrically connected to the air source device 12 and the drive device 6-1, respectively.

[0126] Optionally, the gas source device 12 is connected to the gas port 9 via a pipeline 20 , and a buffer chamber 19 is provided on the pipeline 20 .

[0127] Optionally, the pneumatic system provided in this embodiment is composed of the pneumatic oscillator mentioned above, and the air source device 12 in this embodiment is also connected to the air port 9 through the pipeline 20. The purpose is to inflate the standby pressure space 1-3 through the air source device 12, so that when the actuator 4 is compressed, the pressure it is subjected to is the sum of the pressure given by the extrusion member 5-2 and the pressure given by the air in the standby pressure space 1-3, thereby making the actuator 4 easier to compress, increasing the pressure of the outward compressed air flow of the actuator 4, making the air flow oscillation in the air path more obvious, and the vibration effect of the airbag 11 better. When the actuator 4 is a leather cup, when it inhales air, due to the certain pressure in the standby pressure space 1-3, the leather cup will not deform excessively, thereby increasing the service life of the leather cup and further improving the stability of the entire pneumatic system.

[0128] Optionally, the pipeline 20 is provided with the buffer chamber 19, which is used to slow down the inflation rate of the gas source device 12 into the backup pressure space 1-3, thereby ensuring that the gas pressure in the backup pressure space 1-3 acting on the actuator 4 is stable. The gas guide passage 3 mentioned above refers to the first gas guide passage 3.

[0129] Referring to Figures 21 to 30, this embodiment provides a group pump pneumatic device, including:

[0130] A device housing 1, wherein a first space 22 is provided in the device housing 1, and the first space 22 is communicated with the ambient atmosphere; at least two air outlets 21 are provided on the device housing 1, and at least two pneumatic units are provided in the device housing 1, and each of the air outlets 21 corresponds to one of the pneumatic units;

[0131] A driving component 23, the driving component 23 is connected to the pneumatic unit and is used to drive the pneumatic unit to work;

[0132] The pneumatic unit comprises:

[0133] At least one actuating member 4, wherein the actuating member 4 is provided with an air storage chamber 4-1 and the volume of the air storage chamber 4-1 is variable, and when the driving assembly 23 is in operation, the actuating member 4 is switched between a natural state and a compressed state:

[0134] An air guiding passage 2, one end of which is connected to at least one of the air storage chambers 4-1, and the other end of which is connected to the air outlet 21; the air guiding passage 2 here and the air guiding passage 2 mentioned hereafter refer to the second air guiding passage 2, which is not the same structure as the first air guiding passage 3 mentioned above.

[0135] The air intake passage 39 connects the actuator 4 and the first space 22 ; the air intake passage 39 is unidirectionally conducted from the first space 22 to the air storage chamber 4 - 1 .

[0136] The device housing 1 mentioned here may be the housing 1 mentioned above. The air storage cavity 4-1 mentioned here may be the actuating cavity 4-1 mentioned above. The second air guide passage 2 mentioned here may be the air flow passage 2 mentioned above.

[0137] Optionally, referring to Figures 21 and 22, an air outlet 21 is provided at the top of the device housing 1, and a plurality of the pneumatic units are evenly arranged circumferentially around the axis of the device housing 1, and each of the pneumatic units is independent of each other. In this embodiment, an example is given in which four of the air outlets 21 and four of the pneumatic units are provided. The actuator 4 is disposed in the first space 22 and is close to the inner top wall of the device housing 1. The actuator 4 can be a leather cup, a piston, or a plunger. The air outlet 21 is used to communicate with the air bag. When the pneumatic unit includes one actuator 4, one end of the air guide passage 2 is connected to the actuator 4, and the other end is connected to the air outlet 21. When the pneumatic unit includes multiple actuators 4, the multiple actuators 4 are connected in series, one end of the air guide passage 2 is connected to one of the actuators 4, and the other end of the air guide passage 2 is connected to the air outlet 21. Since the actuating member 4 is provided with an air storage chamber 4-1 with a variable volume, repeated squeezing of the actuating member 4 can generate a rhythmic movement of the gas in the air guide passage 2, thereby allowing the air bag to rapidly expand and contract to achieve support and massage functions. In this embodiment, the air guide passage 2 is cylindrical.

[0138] The air intake passage 39 is connected to the actuator 4 at one end and to the first space 22 at the other end. The air intake passage 39 is unidirectional. Since the first space 22 is connected to the ambient atmosphere, the pressure within the actuator 4 decreases during compression, allowing air within the first space 22 to enter the actuator 4 through the air intake passage 39, increasing the air volume within the actuator 4 and ultimately enhancing the airbag's vibration effect. The drive assembly 23 is partially located within the first space 22 and partially located outside the first space 22. The portion located within the first space 22 is connected to the actuator 4. Its function is to sequentially compress the four actuators 4 through its repeated movement, causing them to repeatedly switch between a natural state and a compressed state, thereby causing each pneumatic unit to drive the corresponding airbag to produce a vibration effect.

[0139] Optionally, the device housing 1 includes:

[0140] The housing 1-1 and the gas distribution cover, when combined, form the first space 22; the air guide passage 2 and the air intake passage 39 are formed on the gas distribution cover; the actuator 4 abuts the edge of the housing 1-1 near the gas distribution cover and the side of the gas distribution cover near the housing 1-1. The housing 1-1 mentioned here is the bottom housing 1-1 mentioned above. The gas distribution cover mentioned here and the gas distribution cover mentioned later are all an integrated structure composed of the upper cover 1-2 and the gas distribution cover 7 mentioned above.

[0141] Optionally, referring to Figure 22, the device housing 1 is composed of the shell 1-1 and the gas distribution cover. The shell 1-1 is a cylindrical structure with an open top. The gas distribution cover is covered with the top of the shell 1-1 to form the first space 22 after covering. An air inlet nozzle 9 is provided on the side wall of the shell 1-1. The air inlet nozzle 9 connects the first space 22 with the ambient atmosphere, so that air outside the shell 1-1 can enter the first space 22 through the air inlet nozzle 9. The top of the gas distribution cover is provided with four columnar tubes extending away from the shell 1-1. The columnar tubes are hollow inside and connected at both ends. The air guide passage 2 is formed inside the columnar tubes. One end of the air guide passage 2 passes through the side of the gas distribution cover close to the shell 1-1, and the other end forms the air outlet 21. The edge of the actuator 4 is attached to the side of the gas distribution cover close to the shell 1-1. The air inlet nozzle 9 mentioned here can be the air port 9 mentioned above.

[0142] Optionally, the gas distribution cover includes an upper cover 1-2, a lower cover 7 and a sealing member 8, wherein the lower cover 7 is arranged between the upper cover 1-2 and the housing 1-1, and the sealing member 8 is arranged between the upper cover 1-2 and the lower cover 7, forming a second space 36 between the upper cover 1-2 and the sealing member 8, and the sealing member 8 is made of elastic material; the air guide passage 2 is arranged on the upper cover 1-2, and the air guide passage 2 is connected to the actuator 4 through the first connecting portion 3, and the first connecting portion 3 passes through the sealing member 8 and the lower cover 7. The sealing member 8 mentioned here is the first sealing member 8 mentioned above. The first connecting portion 3 mentioned here is the first air guide passage 3 mentioned above.

[0143] Optionally, referring to Figures 23 and 24, the gas distribution cover is formed by the upper cover 1-2 and the lower cover 7 covering each other. The upper cover 1-2 is provided with a positioning column hole 15, and the lower cover 7 is provided with a positioning pin 14 corresponding to the positioning column hole 15. The cooperation between the positioning pin 14 and the positioning column hole 15 allows the upper cover 1-2 and the lower cover 7 to cover each other. After the upper cover 1-2 and the lower cover 7 are covered, a storage space is formed between the two. The sealing member 8 is disposed in the storage space and is close to the lower cover 7. The second space 36 is formed between the upper cover 1-2 and the sealing member 8. The first connecting portion 3 is formed by passing through the sealing member 8 and the lower cover 7. The first connecting portion 3 connects the air guide passage 2 and the actuator 4 between the upper cover 1-2 and the first space 22. Because the sealing member 8 is made of elastic material, the sealing member 8 effectively seals the air guide passage 2 and the first connecting portion 3.

[0144] Optionally, the first connecting portion 3 includes:

[0145] a first air guide hole 24 , which is provided on the sealing member 8 and passes through the sealing member 8 ;

[0146] a second air guide hole 25 , which is formed on the lower cover 7 and passes through the lower cover 7 , and connects the first air guide hole 24 and the actuating member 4 ;

[0147] The air path isolation wall 26 is provided on a side of the upper cover 1 - 2 close to the sealing member 8 , and the air path isolation wall 26 abuts against the sealing member 8 ; the air path isolation wall 26 connects the first air guide hole 24 and the air guide path 2 .

[0148] Optionally, referring to Figure 24, the first connecting part 3 is composed of a first air guide hole 24, a second air guide hole 25 and an air path isolation wall 26, the first air guide hole 24 is a through hole passing through the seal 8, the second air guide hole 25 is a through hole passing through the lower cover body 7, and the second air guide hole 25 is arranged corresponding to the first air guide hole 24 to achieve gas conduction; the air path isolation wall 26 is formed on the side of the upper cover body 1-2 close to the seal 8, the air path isolation wall 26 is cylindrical and the end away from the upper cover body 1-2 is tightly abutted against the seal 8, and the air path isolation wall 26 is connected to the air guide passage 2 and the first air guide hole 24.

[0149] Optionally, a partition 27 is provided on the upper cover 1-2, which divides the second space 36 into at least two mutually unconnected air inlet chambers 28. The air inlet passage 39 includes the air inlet chamber 28, a second connecting portion 29, and a third connecting portion 30. The second connecting portion 29 connects the air inlet chamber 28 with the air storage chamber 4-1, and the third connecting portion 30 connects the air inlet chamber 28 with the first space 22. Both the second connecting portion 29 and the third connecting portion 30 pass through the sealing member 8 and the housing 1-1, and the second connecting portion 29 unidirectionally conducts from the air inlet chamber 28 to the air storage chamber 4-1.

[0150] Optionally, referring to Figures 24-30, the partition 27 is arranged on the side of the upper cover body 1-2 close to the seal 8, and the partition 27 divides the second space 36 into four air inlet cavities 28, each of the air inlet cavities 28 is composed of the upper cover body 1-2, the seal 8 and the corresponding partition 27, and the seal 8 also seals the air inlet cavity 28; the air path isolation wall 26 is placed inside the air inlet cavity 28, and the side wall of the air path isolation wall 26 blocks the communication between the air guide path 2 and the air inlet cavity 28. The second communicating portion 29 is formed by passing through the sealing member 8 and the lower cover 7, and the third communicating portion 30 is formed by passing through the sealing member 8 and the lower cover 7. Since the second communicating portion 29 connects the air inlet chamber 28 and the air storage chamber 4-1 and is unidirectionally conducted from the air inlet chamber 28 to the air storage chamber 4-1, the third communicating portion 30 connects the air inlet chamber 28 and the first space 22, so that when the actuator 4 is compressed, the air in the first space 22 passes through the third communicating portion 30, the air inlet chamber 28 and the second communicating portion 29 in sequence and enters the actuator 4.

[0151] Optionally, the second communication portion 29 includes:

[0152] A first air inlet hole 31 is provided on the sealing member 8. A bending portion 32 is provided on a side wall of the first air inlet hole 31. The bending portion 32 and the sealing member 8 are integrally formed and can be bent relative to the sealing member 8.

[0153] A second air inlet hole 33 is provided on the housing 1 - 1 , and a sidewall of the second air inlet hole 33 protrudes outward to form a protrusion 34 , wherein a free end of the protrusion 34 is in an arc shape that bends away from the sealing member 8 ;

[0154] The limiting portion 35 is arranged on a side of the upper cover body 1-2 close to the sealing member 8, and the limiting portion 35 abuts against the position where the bending portion 32 is not connected to the sealing member 8. The side wall of the limiting portion 35 is opened to connect the air inlet cavity 28 and the first air inlet hole 31.

[0155] Optionally, referring to Figures 24-30, the second connecting portion 29 is formed by the first air inlet hole 31 and the second air inlet hole 33. The first air inlet hole 31 is a through hole that passes through the sealing member 8, and the second air inlet hole 33 is a through hole that passes through the lower cover 7. The first air inlet hole 31 is connected to the air inlet cavity 28, and the second air inlet hole 33 is provided corresponding to the first air inlet hole 31 to achieve gas conduction. The reason why the second connecting portion 29 can achieve unidirectional conduction is that the bending portion 32, the protruding portion 34 and the limiting portion 35 cooperate with each other. The bending portion 32 is arranged at the position of the first air inlet 31 and is integrally formed with the sealing member 8. The bending portion 32 can be bent relative to the sealing member 8. The bending portion 32 and the sealing member 8 are made of the same material, so that in a natural state, the bending portion 32 covers the first air inlet 31 to prevent gas from passing through the first air inlet 31; the protruding portion 34 extends from the side wall of the second air inlet 33, and the protruding portion 34 is integral with the lower cover 7. Molding, the protrusion 34 is columnar and the free end is provided with an arc surface, which is bent in the direction away from the bending portion 32; the limiting portion 35 is arranged on the side of the upper cover body 1-2 close to the sealing member 8, and the limiting portion 35 is cylindrical and one end is tightly abutted against the side of the bending portion 32 close to the upper cover body 1-2, the limiting portion 35 is placed in the air inlet cavity 28 and is arranged corresponding to the position of the first air inlet hole 31, and the side wall of the limiting portion 35 is provided with a notch, so that the first air inlet hole 31 can be connected to the air inlet cavity 28, and the notch corresponds to the position where the bending portion 32 is connected to the sealing member 8.

[0156] The one-way conduction principle of the second connecting part 29 is as follows: when the actuating member 4 switches from a compressed state to a natural state, the pressure in the air storage chamber 4-1 decreases, and then the pressure on the side of the bending part 32 close to the lower cover body 7 decreases, and the gas on the other side presses the bending part 32 to bend in the direction close to the lower cover body 7. After the bending part 32 contacts the protruding part 34, the edge position bends so that the gas can pass through; when the actuating member 4 is compressed, a part of the gas in the air storage chamber 4-1 enters the air bag through the first connecting part 3 and the air guide passage 2, and the other part squeezes the bending part 32 through the second air inlet hole 33, so that the bending part 32 has a tendency to bend in the direction away from the lower cover body 7, but due to the limiting effect of the limiting part 35, the bending part 32 cannot bend in the direction away from the lower cover body 7, and then the bending part 32 seals the first air inlet hole 31 to block the gas.

[0157] Optionally, referring to Figures 24-30, the third connecting portion 30 is formed by a third air inlet hole 37 and a fourth air inlet hole 38. The third air inlet hole 37 is a through hole that penetrates the sealing member 8, and the fourth air inlet hole 38 is a through hole that penetrates the lower cover 7. The third air inlet hole 37 is connected to the air inlet cavity 28 and is positioned corresponding to the position of the positioning pin 14. The third air inlet hole 37 is also used for the positioning pin 14 to pass through. The fourth air inlet hole 38 connects the third air inlet hole 37 and the second space 36. The fourth air inlet hole 38 is positioned corresponding to the position of the third air inlet hole 37 to achieve gas communication.

[0158] Optionally, the driving assembly 23 includes:

[0159] A driving device 6-1, wherein the driving device 6-1 is mounted on the outer bottom of the housing 1-1;

[0160] a rotating member 5-1, the rotating member 5-1 being disposed in the first space and being in driving connection with an output shaft of the driving device 6-1;

[0161] An extruding member 5-2, the rotating member 5-1 is disposed in the first space 22, the extruding member 5-2 includes a transmission shaft 5-22 and a swinging member 5-23 connected to one end of the transmission shaft 5-22, the free end of the transmission shaft 5-22 is in transmission connection with the rotating member 5-1, a connecting portion 5-21 is provided on the circumference of the swinging member 5-23, and the connecting portion 5-21 is sleeved on the actuating member 4;

[0162] When the rotating member 5-1 rotates around the axis of the output shaft, the transmission shaft 5-22 performs a circular motion around the axis of the output shaft, so that the connecting portion 5-21 moves repeatedly in a direction parallel to the axis of the output shaft.

[0163] The connecting portion 5 - 21 mentioned here is the fixing portion 5 - 21 mentioned above.

[0164] Optionally, as shown in FIG23 , the rotating member 5-1 is a torsion shaft, the swinging member 5-23 is a swing plate, and the fixed portion 5-21 is provided on the outer peripheral side of the swinging member 5-23. The fixed portion 5-21 is annular and is sleeved on the position where the actuating member 4 extends and is fixed to the actuating member 4. The rotating member 5-1 and the swinging member 5-23 are both coaxially arranged with the driving device 6-1. The rotating member 5-1 is in transmission connection with the output shaft of the driving device 6-1. A mounting hole is eccentrically provided on the top surface of the rotating member 5-1. One end of the transmission shaft 5-22 extends into the mounting hole and can rotate relative to the mounting hole within the mounting hole. The direction of rotation is about the axis of the transmission shaft 5-22 itself. The transmission shaft 5-22 is inclined toward the axis of the swinging member 5-23 and the other end is fixedly connected to the center of the swinging member 5-23.

[0165] When the driving device 6-1 rotates, it drives the rotating member 5-1 to rotate around the axis of the driving device 6-1. When the rotating member 5-1 rotates, it drives the transmission shaft 5-22 to make a circular motion around the axis of the driving device 6-1, thereby causing the swinging member 5-23 to rotate along with the transmission shaft 5-22. The fixed portion 5-21 located at the peripheral edge of the swinging member 5-23 swings up and down along the vertical direction in the figure, thereby repeatedly squeezing the actuating member 4 so that the actuating member 4 switches between the natural state and the compressed state.

[0166] Optionally, the inner wall of the air guiding passage 2 is tapered, and the inner diameter of the air guiding passage 2 at one end close to the sealing member 8 is larger than the inner diameter of the end away from the sealing member 8 .

[0167] Referring to Figure 21, in this embodiment, the air guide passage 2 is optionally a tapered air passage, i.e., the inner diameters of the air guide passage 2 at different locations are different. Optionally, the inner diameter of the air guide passage 2 at the end near the seal 8 of this embodiment is smaller than the inner diameter of the air guide passage 2 mentioned above, and the inner diameter of the air guide passage 2 at the end away from the seal 8 of this embodiment is larger than the inner diameter of the air guide passage 2 mentioned above. When the gas in the air bag flows into the actuator 4, the air inlet position of the air guide passage 2 is small in size and has a fast gas flow rate, while the air outlet position is large in size and has a slow gas flow rate. When the gas in the air storage chamber 4-1 flows into the air bag, the air inlet position of the air guide passage 2 is large in size and has a slow gas flow rate, while the air outlet position is small in size and has a fast gas flow rate. This increases the air flow fluctuations in the air path between the air bag and the air guide passage 2, thereby increasing the vibration amplitude of the air bag in this embodiment, and generating a stronger vibration effect.

[0168] Referring to Figure 22 , an embodiment of the present application provides a pneumatic massage system comprising at least two airbags 11, an air source device 12, and the aforementioned group pump pneumatic device. Each airbag 11 is connected to the air source device 12 and an air outlet 21, respectively. The air source device 12 is used to inflate the airbag 11. The airbag 11 is hollow and deformable, and gas enters and exits the actuator 4 through the air outlet and the air guide 2.

[0169] Optionally, the air pressure rhythm massage system further includes a controller 13, wherein a valve body is provided inside the controller 13, each valve body being connected to one of the airbag bodies 11, and the valve body having an open state and a closed state. The controller 13 mentioned here is the control device 13 mentioned above.

[0170] Optionally, the airbag 11 is an air bag, the air source device 12 is an air pump, and the valve body is a solenoid valve or a memory alloy valve. The air source device 12 is connected to each airbag 11 via a controller 13. The controller 13 includes an air inlet pipe and at least two valve bodies, with the air inlet pipe communicating with each valve body. The air inlet pipe is connected to the air source device 12, and each valve body is connected to an airbag 11. Any airbag 11 can be inflated by opening the corresponding valve body. In this embodiment, four airbags 11 are provided. Depending on the user's specific needs, different airbags 11 are positioned at different locations on the car seat, such as the waist, back, and neck. The controller 13 also includes a control module. The valve bodies, the air source device 12, and the group pump pneumatic device are all electrically connected to the control module. The control module is used to control the opening and closing of the valve bodies and the operating status of the air source device 12 and the group pump pneumatic device.

[0171] Optionally, an air leaking piece is further included, and each air leaking piece is connected to each air bag body 11. The air leaking piece has an open state and a closed state. When in the open state, the air leaking piece connects the interior of the air bag body 11 and the ambient atmosphere.

[0172] Optionally, the air leaking member is an air leaking valve, which is connected to each of the control valves and further connected to each of the airbags 11. The air leaking member is electrically connected to the control module, and the control module can control the opening and closing of the air leaking member.

[0173] Working process: The control module controls the air source device 12 to inflate one of the airbags 11. When the airbag 11 is full of gas, the control module controls the driving device 6-1 to start working, causing the airbag 11 to vibrate at a certain frequency to achieve a massage effect. After the control module controls the airbag 11 to continue massaging for 3-5 seconds, the control module controls the controller 13 to deflate the airbag 11, and then switches the airbag 11 in the next position to inflate and massage, and works reciprocatingly in sequence, which can achieve the effect of cyclical massage of the waist, back, neck and other positions.

[0174] Optionally, in the massage system provided in this embodiment, the four airbags 11 work alternately in a cycle. However, as long as one of the airbags 11 is working, the air source device 12 will always be in a working state. Since there is no obstruction in the air outlet direction, the air flow in the air path flows back and forth through the valve body to improve the heat dissipation performance of the controller 13.

[0175] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application. Industrial Applicability

[0176] In summary, the embodiments of the present application provide a pneumatic oscillator, a car seat pneumatic system, a group pump pneumatic device and a pneumatic rhythmic massage system, which have low cost, simple installation and good massage effect.

Claims

1. A pneumatic oscillator, characterized in that: The invention is characterized by comprising: A housing (1), wherein a first space (22) is provided in the housing (1), and at least two airflow passages (2) are provided on the housing (1), wherein the airflow passages (2) communicate with the first space (22) and the ambient atmosphere; at least two pneumatic units are provided in the first space (22), each of the pneumatic units corresponds to one of the airflow passages (2), and different pneumatic units have independent air intake and outlet; The pneumatic unit comprises at least one air guide passage (3) and at least one actuating member (4); the actuating member (4) is provided with an actuating inner cavity (4-1) whose volume is variable; the actuating inner cavity (4-1) is in communication with the air flow passage (2) via the air guide passage (3); A driving assembly (23) is installed at the bottom of the housing (1) and is used to drive the actuating member (4) to perform cyclic reciprocating motion.

2. The pneumatic oscillator according to claim 1, characterized in that The driving assembly (23) includes an extrusion assembly (5) and a driving device (6-1) for driving the extrusion assembly (5); the extrusion assembly (5) is installed on a side of the actuating member (4) away from the air guide passage (3); the extrusion assembly (5) includes at least two fixing parts (5-21), each of the fixing parts (5-21) being correspondingly connected to one of the actuating members (4); and the driving device (6-1) is provided on a side of the extrusion assembly (5) away from the actuating member (4).

3. The pneumatic oscillator according to claim 1 or 2, characterized in that The housing (1) further comprises an air distribution cover (7), the first air guide passage (3) being provided on the air distribution cover (7), and the air distribution cover (7) being used to connect each of the pneumatic units with one of the air flow passages (2); And / or, the air flow passage (2) is tapered, and the inner diameter of the end away from the first space (22) is smaller than the inner diameter of the end close to the first space (22).

4. The pneumatic oscillator according to claim 3, characterized in that The housing (1) comprises a bottom shell (1-1) and an upper cover (1-2), the gas distribution cover (7) being arranged between the upper cover (1-2) and the bottom shell (1-1); the first air guide passage (3) comprises at least two conducting parts (7-1), the conducting parts (7-1) passing through the gas distribution cover (7) and communicating with the air flow passage (2) and the actuating inner cavity (4-1); A first sealing member (8) is provided between the upper cover (1-2) and the gas distribution cover (7); the first sealing member (8) is made of elastic material; a through portion (8-1) corresponding to the position of the conducting portion (7-1) is provided on the first sealing member (8); the through portion (8-1) passes through the first sealing member (8) and cooperates with the conducting portion (7-1) to form the first gas guide passage (3).

5. The pneumatic oscillator according to any one of claims 2 to 4, characterized in that: The extrusion assembly (5) comprises: A rotating member (5-1), the rotating member (5-1) being in driving connection with an output shaft of the driving device (6-1); An extrusion member (5-2), the extrusion member (5-2) comprising a transmission shaft (5-22) and a swing member (5-23) connected to one end of the transmission shaft (5-22), the free end of the transmission shaft (5-22) being in transmission connection with the rotating member (5-1), the fixing portion (5-21) being provided on a circumferential side of the swing member (5-23), and the fixing portion (5-21) being sleeved on the actuating member (4); When the rotating member (5-1) rotates around the axis of the output shaft, the transmission shaft (5-22) performs a circular motion around the axis of the output shaft, so that the fixing portion (5-21) moves repeatedly in a direction parallel to the axis of the output shaft.

6. The pneumatic oscillator according to claim 5, characterized in that The bottom shell (1-1) is provided with an air port (9), the air distribution cover (7) and the bottom shell (1-1) form a standby pressure space (1-3), and the standby pressure space (1-3) is connected to the ambient atmosphere only through the air port (9); A second sealing member (10) is provided on the side of the bottom shell (1-1) close to the driving device (6-1), and the second sealing member (10) is used to seal the gap at the connection position between the bottom shell (1-1) and the driving device (6-1).

7. A car seat pneumatic system, characterized in that: It comprises an air bag body (11), an air source device (12), a control device (13) and a pneumatic oscillator as described in any one of claims 1 to 6; the air source device (12) is connected to the air bag body (11); the air bag body (11) is connected to the actuating cavity (4-1) through the air flow passage (2) and the first air guide passage (3); the control device (13) is electrically connected to the air source device (12) and the driving device (6-1), respectively.

8. A car seat pneumatic system, characterized in that: The invention comprises an air bag body (11), an air source device (12), a control device (13) and a pneumatic oscillator according to claim 5 or 6; the air source device (12) is in communication with the air bag body (11) and is also in communication with the standby pressure space (1-3) through the air port (9); the air bag body (11) is in communication with the actuating inner cavity (4-1) through the air flow passage (2) and the first air guide passage (3); the control device (13) is electrically connected to the air source device (12) and the driving device (6-1) respectively; The gas source device (12) is connected to the gas port (9) via a pipeline (20), and a buffer chamber (19) is provided on the pipeline (20).

9. A group pump pneumatic device, characterized in that: include: A device housing (1), wherein a first space (22) is provided in the device housing (1), and the first space (22) is communicated with the ambient atmosphere; at least two air outlets (21) are provided on the device housing (1), and at least two pneumatic units are provided in the device housing (1), and each of the air outlets (21) corresponds to one of the pneumatic units; A driving assembly (23), the driving assembly (23) being connected to the pneumatic unit and used for driving the pneumatic unit to operate; The pneumatic unit comprises: At least one actuating member (4), the actuating member (4) being provided with an air storage chamber (4-1) and having a variable volume, and the driving assembly (23) switching the actuating member (4) between a natural state and a compressed state when in operation: An air guide passage (2), one end of the air guide passage (2) being in communication with at least one of the air storage cavities (4-1), and the other end being in communication with the air outlet (21); An air intake passage (39) is connected to the actuating member (4) and the first space (22); the air intake passage (39) is unidirectionally conducted from the first space (22) to the air storage chamber (4-1).

10. The group pump pneumatic device according to claim 9, characterized in that: The device housing (1) comprises: A housing (1-1) and a gas distribution cover body, wherein the gas distribution cover body and the housing (1-1) are covered to form the first space (22); the air guide passage (2) and the air intake passage (39) are formed on the gas distribution cover body; the actuating member (4) abuts against an edge of the housing (1-1) close to the gas distribution cover body and abuts against a side of the gas distribution cover body close to the housing (1-1).

11. The group pump pneumatic device according to claim 10, characterized in that: The gas distribution cover comprises an upper cover (1-2), a lower cover (7) and a sealing member (8); the lower cover (7) is arranged between the upper cover (1-2) and the housing (1-1); the sealing member (8) is arranged between the upper cover (1-2) and the lower cover (7); a second space (36) is formed between the upper cover (1-2) and the sealing member (8); the sealing member (8) is made of elastic material; the air guide passage (2) is arranged on the upper cover (1-2); the air guide passage (2) is connected to the actuating member (4) through a first connecting portion (3); the first connecting portion (3) passes through the sealing member (8) and the lower cover (7); And / or, the inner wall of the air guide passage (2) is tapered, and the inner diameter of the air guide passage (2) at one end close to the sealing member (8) is larger than the inner diameter at one end away from the sealing member (8).

12. The group pump pneumatic device according to claim 11, characterized in that: The first connecting portion (3) comprises: a first air guide hole (24), the first air guide hole (24) being provided on the sealing member (8) and penetrating the sealing member (8); a second air guide hole (25), the second air guide hole (25) being provided on the lower cover (7) and penetrating the lower cover (7), the second air guide hole (25) being in communication with the first air guide hole (24) and the actuating member (4); An air path isolation wall (26) is provided on a side of the upper cover (1-2) close to the sealing member (8), and the air path isolation wall (26) abuts against the sealing member (8); the air path isolation wall (26) connects the first air guide hole (24) and the air guide path (2).

13. The group pump pneumatic device according to claim 12, characterized in that: The upper cover (1-2) is provided with a partition (27), and the partition (27) partitions the second space (36) into at least two mutually unconnected air intake cavities (28); the air intake passage (39) includes an air intake cavity (28), a second connecting portion (29) and a third connecting portion (30), the second connecting portion (29) connecting the air intake cavity (28) and the air storage cavity (4-1), and the third connecting portion (30) connecting the air intake cavity (28) and the first space (22); the second connecting portion (29) and the third connecting portion (30) both pass through the sealing member (8) and the housing (1-1), and the second connecting portion (29) is unidirectionally connected from the air intake cavity (28) to the air storage cavity (4-1); The air inlet cavity (28) is connected to the actuating member (4) through a second connecting portion (29), and is connected to the first space (22) through a third connecting portion (30); the second connecting portion (29) and the third connecting portion (30) both pass through the sealing member (8) and the housing (1-1), and the second connecting portion (29) is unidirectionally connected from the air inlet cavity (28) to the actuating member (4).

14. The group pump pneumatic device according to claim 13, characterized in that: The second communication portion (29) comprises: a first air inlet hole (31), the first air inlet hole (31) being provided on the sealing member (8), a bending portion (32) being provided on a side wall of the first air inlet hole (31), the bending portion (32) and the sealing member (8) being an integral structure, and the bending portion (32) being bendable relative to the sealing member (8); a second air inlet hole (33), the second air inlet hole (33) being provided on the housing (1-1), the side wall of the second air inlet hole (33) being convex to form a protrusion (34), the free end of the protrusion (34) being in an arc shape that bends in a direction away from the sealing member (8); A limiting portion (35) is provided on a side of the upper cover (1-2) close to the sealing member (8), the limiting portion (35) abuts against a position where the bending portion (32) is not connected to the sealing member (8), and a side wall of the limiting portion (35) is opened to connect the air inlet cavity (28) and the first air inlet hole (31).

15. The group pump pneumatic device according to any one of claims 9 to 14, characterized in that: The drive assembly (23) comprises: A driving device (6-1), the driving device (6-1) being installed on the outer bottom of the housing (1-1); a rotating member (5-1), the rotating member (5-1) being disposed in the first space (22), the rotating member (5-1) being in driving connection with an output shaft of the driving device (6-1); An extrusion member (5-2), the extrusion member (5-2) being arranged in the first space, the extrusion member (5-2) comprising a transmission shaft (5-22) and a swing member (5-23) connected to one end of the transmission shaft (5-22), the free end of the transmission shaft (5-22) being in transmission connection with the rotating member (5-1), a connecting portion (5-21) being provided on a circumferential side of the swing member (5-23), and the connecting portion (5-21) being sleeved on the actuating member (4); When the rotating member (5-1) rotates around the axis of the output shaft, the transmission shaft (5-22) performs a circular motion around the axis of the output shaft, so that the connecting portion (5-21) moves repeatedly in a direction parallel to the axis of the output shaft.

16. An air pressure rhythmic massage system, characterized in that: The invention comprises at least two air bags (11), an air source device (12), a controller (13), and a group pump pneumatic device according to any one of claims 9 to 15, wherein each of the air bags (11) is respectively connected to the air source device (12) and one of the air outlets (21), and the air source device (12) is used to inflate the air bags (11); the air bags (11) are hollow inside and have an elastic outer wall, and the gas enters and exits the actuating member (4) through the air outlet (21) and the air guide passage (2); A valve body is provided inside the controller (13), each of the valve bodies is communicated with one of the airbag bodies (11), and the valve body has an open state and a closed state.

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