Pneumatic massage system and seat

Abstract

The utility model relates to the technical field of pneumatic comfort systems, in particular to a pneumatic massage system and a seat. The pneumatic massage system comprises an air source, a massage device and a control valve; the gas source is used for outputting positive pressure gas; the massage device comprises a telescopic air bag and a massage assembly, the massage assembly is arranged at one end of the telescopic air bag and comprises a pneumatic motor and a massage head, the massage head is arranged on an output shaft of the pneumatic motor, and the pneumatic motor is used for driving the massage head to rotate; the control valve enables the air source to be in fluid communication with the telescopic air bag and the pneumatic motor and is used for controlling connection and disconnection of air channels among the air source, the telescopic air bag and the pneumatic motor. According to the pneumatic massage system, the pneumatic motor drives the massage head to rotate so as to achieve massage, massage can be achieved, the pneumatic massage system can be driven through the air source, and the air source utilization rate is increased. And the pneumatic motor and the telescopic air bag share the same air source, so that the cost of the pneumatic massage system is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pneumatic comfort systems, in particular to a pneumatic massage system and a seat. BACKGROUND

[0002] The pneumatic comfort system comprises a driving device, an extendable air bag and a massage head. The driving device drives the massage head to rotate to realize rolling kneading massage. The extendable air bag drives the massage head to move up and down. When the massage head works, the extendable air bag drives the massage head to extend to fit the human body massage part, so as to provide a larger massage strength and provide the massage head with a buffer ejection support, so that the massage experience is better. When the massage head stops massage, the extendable air bag drives the massage assembly to move away from the human body massage part, so as to improve the problem of foreign body sensation.

[0003] The driving device usually comprises a motor, and the extendable air bag is usually driven by an air source. Therefore, the complete pneumatic comfort system needs to include an air source and a motor, so that the cost of the pneumatic comfort system is high. In addition, the air source is only used when the extendable air bag drives the massage head to extend and retract, so that the utilization rate is low. CONTENT OF THE UTILITY MODEL

[0004] The embodiment of the present application aims to provide a pneumatic massage system and a seat, so as to at least solve the problems of high cost of the pneumatic massage system and low utilization rate of the air source.

[0005] In order to solve the above technical problems, the embodiment of the present application adopts the following technical solutions:

[0006] In the first aspect, the embodiment of the present application provides a pneumatic massage system, which comprises an air source, a massage device and a control valve. The air source is used to output positive pressure gas. The massage device comprises an extendable air bag and a massage assembly. The massage assembly is arranged at one end of the extendable air bag. The massage assembly comprises a pneumatic motor and a massage head. The massage head is arranged on the output shaft of the pneumatic motor. The pneumatic motor is used to drive the massage head to rotate. The control valve is in fluid communication with the air source, the extendable air bag and the pneumatic motor. The control valve is used to control the opening and closing of the air path between the air source, the extendable air bag and the pneumatic motor.

[0007] In some embodiments, the control valve is switchable at least among a first state, a second state and a third state: in the first state, the control valve communicates a gas path between the gas source and the retractable air bag, while the control valve communicates or disconnects a gas path between the gas source and the pneumatic motor; in the second state, the control valve disconnects the gas path between the gas source and the retractable air bag, while the control valve communicates the gas path between the gas source and the pneumatic motor; in the third state, the control valve communicates the retractable air bag with an ambient environment or with the pneumatic motor, while the control valve disconnects the gas path between the gas source and the pneumatic motor.

[0008] In some embodiments, the control valve comprises a valve housing and a valve core; the valve housing is provided with a valve cavity, an air inlet, an air outlet, a first air vent and a second air vent, the air inlet, the air outlet, the first air vent and the second air vent being in fluid communication with the valve cavity; the air inlet, the first air vent, the air outlet and the second air vent are arranged in sequence along a first axis; the valve core is rotatably arranged in the valve cavity along the first axis, the valve core being provided with a fluid passage, the valve core being configured to communicate one of the air inlet and the air outlet with one of the first air vent and the second air vent when the valve core rotates relative to the valve housing; wherein the air inlet is in fluid communication with the gas source, the first air vent is in fluid communication with the pneumatic motor, the air outlet is in fluid communication with an ambient environment, and the second air vent is in fluid communication with the retractable air bag.

[0009] In some embodiments, the valve core is provided with a recess, the valve core and the valve housing enclosing the fluid passage at the recess.

[0010] In some embodiments, the recess respectively penetrates opposite sides of the valve core along a direction parallel to the first axis.

[0011] In some embodiments, the control valve comprises a valve housing and a valve core; the valve housing is provided with a valve cavity, an air inlet, a first vent, a second vent and a fluid groove, the air inlet is in fluid communication with the fluid groove, the fluid groove, the first vent and the second vent are in fluid communication with the valve cavity; the fluid groove and the first vent and the second vent are located on opposite sides of the valve cavity in a direction parallel to a first axis, respectively; the valve core is rotatably arranged in the valve cavity about the first axis, the valve core is provided with a first fluid hole, the valve core is used to move the first fluid hole to be at least partially located between the fluid groove and the first vent or to be at least partially located between the fluid groove and the second vent when the valve core rotates relative to the valve housing; wherein the air inlet is in fluid communication with the air source, the first vent is in fluid communication with the pneumatic motor, and the second vent is in fluid communication with the telescopic air bag.

[0012] In some embodiments, the valve core is further provided with a second fluid hole, and the valve core is used to move the second fluid hole to be at least partially located between the fluid groove and the first vent and at the same time to be at least partially located between the fluid groove and the second vent when the valve core rotates relative to the valve housing.

[0013] In some embodiments, the projections of the first vent and the second vent coincide with the projection of the fluid groove in a direction parallel to the first axis.

[0014] In some embodiments, when the valve core rotates relative to the valve housing to a first position, the projection of the first vent coincides with the projection of the first fluid hole; and / or when the valve core rotates relative to the valve housing to a second position, the projection of the second vent coincides with the projection of the first fluid hole; and / or when the valve core rotates relative to the valve housing to a third position, the projections of the first vent and the second vent both coincide with the projection of the second fluid hole.

[0015] In a second aspect, the embodiments of the present application provide a seat, which comprises the pneumatic massage system.

[0016] The pneumatic massage system of the embodiments of the present application can realize massage by driving the massage head to rotate by the pneumatic motor, that is, it can realize massage and can be driven by the air source to improve the utilization rate of the air source. Moreover, the pneumatic motor and the telescopic air bag share the same air source, thereby reducing the cost of the pneumatic massage system.

[0017] The massage head is driven by a pneumatic motor. By changing the direction of air inlet and outlet of the pneumatic motor, the forward and reverse rotation of the massage head can be controlled, making the adjustment of the forward and reverse rotation of the massage head more convenient and flexible. By controlling the air pressure and flow rate of the gas entering the pneumatic motor, the rotation speed of the massage head can be controlled, making the adjustment of the massage head speed more convenient and flexible.

[0018] The seat in this embodiment is equipped with the aforementioned activation massage system, which reduces the cost of the seat and improves the utilization rate of the air source inside the seat.

[0019] The above description is merely an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0020] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0021] Figure 1 This is a schematic diagram of the structure of a pneumatic massage system according to an embodiment of the application;

[0022] Figure 2 This is an exploded view of the control valve in an embodiment of this application;

[0023] Figure 3 yes Figure 2 A cross-sectional view of the control valve in the middle;

[0024] Figure 4 This is a schematic diagram of the control valve structure according to an embodiment of the application;

[0025] Figure 5 yes Figure 4 Exploded view of the central control valve;

[0026] Figure 6 yes Figure 4 A cross-sectional view of the control valve in the middle;

[0027] Figure 7 yes Figure 4 A top perspective view of the control valve with the valve core rotated relative to the valve housing to the first position;

[0028] Figure 8 yes Figure 4 Top perspective view of the control valve with the valve core rotated to the second position relative to the valve body;

[0029] Figure 9 yesFigure 4 Figure 6 is a top perspective view of the control valve with the valve core rotated to a third position relative to the valve housing.

[0030] The reference signs in the detailed description of the embodiments are listed below:

[0031] 100, pneumatic massage system;

[0032] 1, air source; 11, positive pressure air outlet;

[0033] 2, massage device;

[0034] 21, telescopic air bag; 211, bag body; 212, air connection pipe;

[0035] 22, massage assembly; 221, pneumatic motor; 2211, output shaft; 2212, pneumatic air inlet; 2213, pneumatic air outlet;

[0036] 222, massage head; 2221, rotating disc; 2222, massage protrusion;

[0037] 3, control valve; 31, valve housing; 311, valve cavity; 312, air inlet; 313, air outlet; 314, first air vent; 315, second air vent; 316, first housing; 3161, valve groove; 317, second housing; 318, fluid groove;

[0038] 32, valve core; 321, fluid channel; 322, groove; 323, first fluid hole; 324, second fluid hole;

[0039] 33, driving member;

[0040] L, first axis. DETAILED DESCRIPTION

[0041] In order to facilitate the understanding of the present application, the present application will be described in more detail below in conjunction with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the use of the terms "including," "comprising," or "having" and variations thereof herein is intended to be broad and encompass the terms "consisting of" and "consisting essentially of" and variations thereof. Unless otherwise required by context, singular terms shall include pluralities and vice versa.

[0043] In the description of the embodiments of the present application, the relative position or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the position or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0044] In the description of the embodiments of the present application, the use of the terms "first", "second", and the like to qualify elements is merely for the purpose of distinguishing between the corresponding elements, and unless otherwise stated, the above terms have no special meaning, and therefore cannot be understood as a limitation on the scope of protection of the present application. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. Unless otherwise required by context, singular terms shall include pluralities and vice versa. The use of the term "and / or", including the use of "and / or" between items in a list of items, means any one of the items, or any combination of

[0046] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0047] Please refer to Figure 1The embodiment of the present application provides a kind of pneumatic massage system 100, pneumatic massage system 100 includes gas source 1, massage device 2 and control valve 3.Gas source 1 is used to output positive pressure gas;Massage device 2 includes telescopic air bag 21 and massage assembly 22, massage assembly 22 is located at one end of telescopic air bag 21, and massage assembly 22 includes pneumatic motor 221 and massage head 222, massage head 222 is located at the output shaft 2211 of pneumatic motor 221, and pneumatic motor 221 is used to drive massage head 222 to rotate;Control valve 3 is in fluid communication with gas source 1, telescopic air bag 21 and pneumatic motor 221, and control valve 3 is used to control the on-off of gas path between gas source 1, telescopic air bag 21 and pneumatic motor 221.By driving massage head 222 to rotate by pneumatic motor 221 to realize massage, it can realize massage, and it can be driven by gas source 1, improve the utilization rate of gas source 1.And pneumatic motor 221 and telescopic air bag 21 share the same gas source 1, reduce the cost of pneumatic massage system 100.

[0048] In the embodiment of the present application, the rotation axis of the massage head 222 is taken as the first axis L for example, and the telescopic air bag 21 is used to drive the massage assembly 22 to move in the direction parallel to the first axis L.Because the massage head 222 is parallel to the human body, the direction in which the telescopic air bag 21 drives the massage assembly 22 to extend is directly opposite to the human body, and the telescopic stroke of the telescopic air bag 21 is fully utilized.In some other embodiments, the moving direction of the massage assembly 22 driven by the telescopic air bag 21 can also form an angle with the rotation axis of the massage head 222.

[0049] For the above-mentioned gas source 1, the gas source 1 device includes but is not limited to air pump, air compressor, piezoelectric pump, etc. Figure 1 The gas source 1 includes a positive pressure gas outlet 11, and the positive pressure gas outlet 11 is used to output positive pressure gas.The positive pressure gas outlet 11 can be in fluid communication with the control valve 3 through a pipeline.

[0050] For the above-mentioned telescopic air bag 21, the telescopic air bag 21 is made of flexible material, such as rubber, silica gel, plastic, etc., including TPU, so that the telescopic air bag 21 can inflate and deflate.

[0051] When the telescopic air bag 21 is supplied with air, the telescopic air bag 21 extends and expands, thereby driving the massage assembly 22 to extend;when the telescopic air bag 21 is exhausted, the telescopic air bag 21 deflates and shrinks, thereby driving the massage assembly 22 to retract.Thereby, the massage assembly 22 can be driven to extend to fit the human body massage part when the massage head 222 works, so as to enhance the massage intensity, provide the massage assembly 22 with a cushioning ejection support, reduce the impact force of the collision between the massage assembly 22 and the human body, and improve the massage experience.The massage assembly 22 can be driven away from the human body massage part when the massage assembly 22 stops massaging, so as to improve the problem that the massage assembly 22 is pressed against the human body, and reduce the foreign body sensation.

[0052] In some embodiments, please refer to Figure 1 The telescopic air bag 21 comprises a bag body 211 and an air pipe 212 in fluid communication with the bag body 211. The air pipe 212 can be in fluid communication with the control valve 3 through a pipe.

[0053] In some embodiments, please refer to Figure 1 The telescopic air bag 21 comprises a plurality of bag bodies 211 stacked in a direction. When the telescopic air bag 21 is inflated and expanded or deflated and contracted, the plurality of bag bodies 211 are deformed to a greater extent along the direction, thereby extending the telescopic stroke of the telescopic air bag 21.

[0054] For the above-mentioned pneumatic motor 221, the pneumatic motor 221 is used to rotate when the gas is introduced. Please refer to Figure 1 The pneumatic motor 221 comprises an output shaft 2211, a pneumatic inlet 2212 and a pneumatic outlet 2213. The pneumatic inlet 2212 is used to be in fluid communication with the positive pressure gas and / or the pneumatic outlet 2213 is used to be in fluid communication with the negative pressure gas. When the gas flows from the pneumatic inlet 2212 to the pneumatic outlet 2213, the gas drives the output shaft 2211 to rotate. For example, the output shaft 2211 is provided with an impeller, which is driven to rotate by the gas flow.

[0055] It can be understood that by changing the inlet and outlet directions of the pneumatic motor 221, the forward and reverse rotation of the massage head 222 can be controlled. For example, the pneumatic outlet 2213 can also be in fluid communication with the positive pressure gas, and the pneumatic inlet 2212 is in fluid communication with the negative pressure gas at the same time, thereby driving the output shaft 2211 of the pneumatic motor 221 to rotate reversely, and controlling the reverse rotation of the massage head 222. In combination with the above-mentioned forward rotation of the massage head 222, it can be known that the pneumatic motor 221 can control the forward and reverse rotation of the massage head 222, and only the inlet and outlet directions of the pneumatic motor 221 need to be changed, so that the adjustment of the forward and reverse rotation of the massage head 222 is more convenient and flexible.

[0056] It can be understood that by controlling the gas pressure and flow rate of the gas introduced into the pneumatic motor 221, the speed of the rotation of the massage head 222 can be controlled. For example, the greater the gas pressure and flow rate of the gas introduced into the pneumatic motor 221, the faster the speed of the rotation of the massage head 222, and vice versa. Therefore, the adjustment of the rotation speed of the massage head 222 is more convenient and flexible.

[0057] For the above-mentioned massage head 222, please refer to Figure 1The massage head 222 comprises a rotating disc 2221 and massage protrusions 2222. The massage protrusions 2222 are arranged on the side of the rotating disc 2221 away from the pneumatic motor 221, and are spaced apart from the first axis L. The output shaft 2211 is connected to the rotating disc 2221. When the output shaft 2211 rotates, the rotating disc 2221 rotates and drives the massage protrusions 2222 arranged thereon to move around the first axis L, thereby achieving kneading massage. Optionally, the rotating disc 2221 is detachably mounted on the output shaft 2211, for example, by screws or by spline connection.

[0058] In some embodiments, referring to Figure 1 The number of massage protrusions 2222 is multiple, and the multiple massage protrusions 2222 are arranged in a circumferential direction around the first axis L. That is, the multiple massage protrusions 2222 are arranged around the first axis L. Optionally, the number of massage protrusions 2222 is three. Optionally, the massage protrusions 2222 are hemispherical.

[0059] In some embodiments, the massage protrusions 2222 are rotatably arranged on the rotating disc 2221. When the rotating disc 2221 drives the massage protrusions 2222 to move around the first axis L, the massage protrusions 2222 can roll on the object being pressed, thereby reducing frictional resistance. For example, the massage protrusions 2222 are mounted on the rotating disc 2221 by bearings. Optionally, the rotation axis of the massage protrusions 2222 relative to the rotating disc 2221 is parallel to the first axis L. Optionally, the rotation axis of the massage protrusions 2222 relative to the rotating disc 2221 is perpendicular to the first axis L.

[0060] For the control valve 3 described above, referring to Figure 2 In some embodiments, the control valve 3 comprises a valve housing 31 and a valve core 32. The valve housing 31 is provided with a valve cavity 311, an air inlet 312, an air outlet 313, a first air vent 314, and a second air vent 315. The air inlet 312, the air outlet 313, the first air vent 314, and the second air vent 315 are in fluid communication with the valve cavity 311. The air inlet 312, the first air vent 314, the air outlet 313, and the second air vent 315 are arranged in a circumferential direction around the first axis L. The valve core 32 is rotatably arranged in the valve cavity 311 around the first axis L. The valve core 32 is provided with a fluid passage 321. When the valve core 32 rotates relative to the valve housing 31, the valve core 32 fluidly connects one of the air inlet 312 and the air outlet 313 with one of the first air vent 314 and the second air vent 315.

[0061] For example, referring to Figure 2 and Figure 3, the valve housing 31 comprises a first housing 316 and a second housing 317, the first housing 316 is provided with a valve groove 3161 which is adapted to the valve core 32, the first housing 316 and the second housing 317 form a valve cavity 311 at the valve groove 3161. For example, the valve groove 3161 and the valve core 32 are both cylindrical and have equal diameter and thickness; the second housing 317 is provided on the side of the first housing 316 provided with the valve groove 3161 and seals the opening of the valve groove 3161. Thus, when the valve core 32 is installed in the valve groove 3161, the outer circumferential surface of the valve core 32 is in sealing contact with the inner side wall of the valve groove 3161, one end surface of the valve core 32 is in sealing contact with the bottom wall of the valve groove 3161, and the other end surface of the valve core 32 is in sealing contact with the second housing 317.

[0062] , referring to Figure 2 and Figure 3 , the air inlet 312, the air outlet 313, the first air vent 314 and the second air vent 315 are all communicated with the valve cavity 311 at the side wall of the valve groove 3161, that is, the air inlet 312, the air outlet 313, the first air vent 314 and the second air vent 315 are sealed by the outer circumferential surface of the valve core 32. The ports at both ends of the fluid channel 321 penetrate through the outer circumferential surface of the valve core 32, and the ports at both ends of the fluid channel 321, the air inlet 312, the air outlet 313, the first air vent 314 and the second air vent 315 are aligned with each other in the direction parallel to the first axis L. When the valve core 32 rotates in the valve cavity 311, the ports of the fluid channel 321 can pass through the air inlet 312, the air outlet 313, the first air vent 314 and the second air vent 315 in turn and be in fluid communication with them.

[0063] , referring to Figure 2 and Figure 3 , the air inlet 312, the air outlet 313, the first air vent 314 and the second air vent 315 are arranged at equal angles around the first axis L. That is, the angle interval between any two adjacent ones of the air inlet 312, the air outlet 313, the first air vent 314 and the second air vent 315 is 90 degrees. The angle interval of the ports at both ends of the fluid channel 321 around the first axis L is also 90 degrees. Thus, when one port of the fluid channel 321 is in fluid communication with one of the air inlet 312, the air outlet 313, the first air vent 314 and the second air vent 315, the other port of the fluid channel 321 is in fluid communication with another one of the air inlet 312, the air outlet 313, the first air vent 314 and the second air vent 315, thereby fluidly connecting two of the air inlet 312, the air outlet 313, the first air vent 314 and the second air vent 315 with each other.

[0064] , referring to Figure 2 and Figure 3, the air inlet 312, the first vent 314, the air outlet 313 and the second vent 315 are arranged in sequence and spaced apart around the first axis L. Thus, the fluid passage 321 can fluidly connect the air inlet 312 and the first vent 314, or fluidly connect the first vent 314 and the air outlet 313, or fluidly connect the air outlet 313 and the second vent 315, or fluidly connect the second vent 315 and the air inlet 312. That is, fluidly connect one of the air inlet 312 and the air outlet 313 with one of the first vent 314 and the second vent 315.

[0065] The air inlet 312 is fluidly connected with the air source 1, the first vent 314 is fluidly connected with the pneumatic motor 221, the air outlet 313 is fluidly connected with the ambient environment, and the second vent 315 is fluidly connected with the flexible air bag 21. That is, the control valve 3 can control the air path between the air source 1 and the flexible air bag 21 and the pneumatic motor 221, and can also control the air path between the ambient environment and the flexible air bag 21 and the pneumatic motor 221, thereby achieving the inflation and deflation of the flexible air bag 21 and the pneumatic motor 221.

[0066] In some embodiments, referring to Figure 2 and Figure 3 , the valve core 32 is provided with a groove 322, and the valve core 32 and the valve shell 31 surround the groove 322 to form the fluid passage 321. That is, the fluid passage 321 extends through the outer circumferential surface of the valve core 32 or through the end surface of the valve core 32. When machining the valve core 32, only the groove 322 needs to be opened on the valve core 32, which reduces the machining difficulty and machining cost compared to opening a passage on the valve core 32. Alternatively, the valve core 32 is formed by injection molding or casting, and no cylindrical mold for passage forming needs to be provided during mold making, which reduces the difficulty of injection molding and casting and reduces the cost of injection molding and casting.

[0067] In some embodiments, referring to Figure 2 and Figure 3 , in a direction parallel to the first axis L, the groove 322 penetrates through opposite sides of the valve core 32, respectively. That is, the groove 322 is notch-shaped, for example, the valve core 32 is cut in a direction parallel to the first axis L to cut the notch-shaped groove 322 on the valve core 32. Since the groove 322 penetrates through opposite sides of the valve core 32 in a direction parallel to the first axis L, the width of the fluid passage 321 in the direction parallel to the first axis L is increased, the cross-sectional area of the fluid passage 321 is increased, and the resistance of the gas flowing through the fluid passage 321 is reduced. Furthermore, the notch-shaped groove 322 further reduces the machining difficulty and machining cost.

[0068] In other embodiments, referring to Figures 4 to 6The control valve 3 comprises a valve housing 31 and a valve core 32. The valve housing 31 is provided with a valve cavity 311, an air inlet 312, a first air vent 314, a second air vent 315 and a fluid groove 318. The air inlet 312 is in fluid communication with the fluid groove 318. The fluid groove 318, the first air vent 314 and the second air vent 315 are in fluid communication with the valve cavity 311. In a direction parallel to the first axis L, the fluid groove 318 is located on opposite sides of the valve cavity 311 from the first air vent 314 and the second air vent 315 respectively. The valve core 32 is rotatably arranged in the valve cavity 311 about the first axis L. The valve core 32 is provided with a first fluid hole 323. The valve core 32 is configured to move the first fluid hole 323 to be at least partially located between the fluid groove 318 and the first air vent 314 or to be at least partially located between the fluid groove 318 and the second air vent 315 when the valve core 32 rotates relative to the valve housing 31.

[0069] For example, refer to Figures 4 to 6 The valve housing 31 comprises a first shell 316 and a second shell 317. The first shell 316 is provided with a valve groove 3161 which is adapted to the valve core 32. The first shell 316 and the second shell 317 form the valve cavity 311 at the valve groove 3161. For example, the valve groove 3161 and the valve core 32 are both cylindrical and have equal diameters and thicknesses. The second shell 317 is arranged on the side of the first shell 316 provided with the valve groove 3161 and seals the opening of the valve groove 3161. Thus, when the valve core 32 is installed in the valve groove 3161, the outer circumferential surface of the valve core 32 is in sealing contact with the inner side wall of the valve groove 3161. One end surface of the valve core 32 is in sealing contact with the bottom wall of the valve groove 3161. The other end surface of the valve core 32 is in sealing contact with the second shell 317.

[0070] The fluid groove 318 is in communication with the valve cavity 311 at the bottom wall of the valve groove 3161, i.e. the fluid groove 318 is sealed by one end surface of the valve core 32. The first air vent 314 and the second air vent 315 are both in fluid communication with the valve cavity 311 at the second shell 317, i.e. the first air vent 314 and the second air vent 315 are sealed by the other end surface of the valve core 32. For example, refer to Figures 6 to 8 The ports at both ends of the first fluid hole 323 pass through the two end surfaces of the valve core 32. In a direction parallel to the first axis L, the projections of the fluid groove 318, the first air vent 314, the second air vent 315 and the first fluid hole 323 are all equidistant from the first axis L. For example, refer to Figures 6 to 8 When the valve core 32 rotates in the valve cavity 311, one port of the first fluid hole 323 can pass through and be in fluid communication with the first air vent 314 and the second air vent 315 in turn. The other port of the first fluid hole 323 can pass through and be in fluid communication with the fluid groove 318.

[0071] It should be noted that Figure 7 In this case, the first air vent 314 coincides with the first fluid hole 323.Figure 8 In the middle, the second vent 315 coincides with the first fluid hole 323.

[0072] Please refer to Figures 6 to 8 Along a direction parallel to the first axis L, the projections of both the first vent 314 and the second vent 315 at least partially coincide with the fluid tank 318. (See also...) Figure 7 When the valve core 32 rotates to the position where the first fluid port 323 is between the first vent 314 and the fluid groove 318, the first vent 314 and the fluid groove 318 are in fluid communication; please refer to Figure 8 When the valve core 32 rotates to the position where the first fluid port 323 is located between the second vent 315 and the fluid groove 318, the second vent 315 and the fluid groove 318 are in fluid communication.

[0073] The air inlet 312 is fluidly connected to the air source 1, the first air vent 314 is fluidly connected to the pneumatic motor 221, and the second air vent 315 is fluidly connected to the telescopic air bag 21. In other words, the control valve 3 can control the opening and closing of the air passage between the air source 1, the telescopic air bag 21, and the pneumatic motor 221.

[0074] In some embodiments, please refer to Figure 5 The valve core 32 is also provided with a second fluid hole 324. When the valve core 32 rotates relative to the valve housing 31, the second fluid hole 324 is moved to be at least partially located between the fluid groove 318 and the first vent 314, and the second fluid hole 324 is at least partially located between the fluid groove 318 and the second vent 315.

[0075] For example, please refer to Figure 9 Along a direction parallel to the first axis L, the projections of the fluid groove 318, the first vent 314, the second vent 315, and the second fluid orifice 324 are all equidistant from the first axis L. When the valve core 32 rotates within the valve cavity 311, one end of the second fluid orifice 324 can sequentially pass through the first vent 314 and the second vent 315 and be in fluid communication with them, while the other end of the second fluid orifice 324 can pass through the fluid groove 318 and be in fluid communication with it.

[0076] It should be noted that, Figure 9 In the middle, the second fluid hole 324 coincides with the fluid groove 318.

[0077] Please refer to Figure 9 Along a direction parallel to the first axis L, the projections of both the first vent 314 and the second vent 315 at least partially coincide with the fluid channel 318. Furthermore, along the circumferential direction of the first axis L, the length of the second fluid orifice 324 is greater than the distance between the first vent 314 and the second vent 315. (See also...) Figure 9When the valve core 32 rotates to the point where the second fluid orifice 324 is partially located between the first vent 314 and the fluid groove 318, and the second fluid orifice 324 is partially located between the second vent 315 and the fluid groove 318, the first vent 314 and the second vent 315 are simultaneously in fluid communication with the fluid groove 318. That is, the control valve 3 can control the simultaneous connection of the air path between the air source 1, the telescopic air bag 21, and the pneumatic motor 221.

[0078] In some embodiments, please refer to Figures 7 to 9 Along a direction parallel to the first axis L, the projection of the first vent 314 coincides with the projection of the fluid channel 318. The optimal communication area of ​​the first vent 314, the first fluid orifice 323, and the fluid channel 318, i.e., the maximum overlap area of ​​the three along a direction parallel to the first axis L, depends on their optimal overlap degree along the direction parallel to the first axis L. By making the projection of the first vent 314 coincide with the projection of the fluid channel 318, the communication area of ​​the first vent 314, the first fluid orifice 323, and the fluid channel 318 depends on the communication area of ​​the first vent 314 and the first fluid orifice 323, thus increasing the optimal communication area of ​​the first vent 314, the first fluid orifice 323, and the fluid channel 318.

[0079] Thus, when the first vent 314 is adapted to the first fluid port 323, for example, please refer to Figure 7 When the valve core 32 rotates relative to the valve housing 31 to the first position, the projection of the first vent 314 coincides with the projection of the first fluid hole 323 along the direction parallel to the first axis L. Therefore, when the valve core 32 rotates relative to the valve housing 31 until the first fluid hole 323 is directly opposite the first vent 314, that is, when the valve core 32 rotates relative to the valve housing 31 to the first position, the optimal communication area of ​​the first vent 314, the first fluid hole 323, and the fluid groove 318 is equal to the cross-sectional area of ​​the first vent 314, thus increasing the optimal communication area of ​​the first vent 314, the first fluid hole 323, and the fluid groove 318. Optionally, when the valve core 32 rotates relative to the valve housing 31 to the first position, the projection of the first vent 314 coincides with the projection of the first fluid hole 323 along the direction parallel to the first axis L, meaning that the first vent 314 and the first fluid hole 323 have the same shape and size.

[0080] In some embodiments, please refer to Figures 7 to 9 Along a direction parallel to the first axis L, the projection of the second vent 315 coincides with the projection of the fluid channel 318. This increases the optimal communication area among the second vent 315, the first fluid hole 323, and the fluid channel 318.

[0081] Thus, when the second vent 315 is adapted to the first fluid port 323, for example, please refer toFigure 8 When the valve core 32 rotates relative to the valve shell 31 to the second position, the projection of the second vent port 315 coincides with the projection of the first fluid hole 323 in the direction parallel to the first axis L. Then, when the valve core 32 rotates relative to the valve shell 31 to the second fluid hole 323 directly opposite the second vent port 315, i.e. when the valve core 32 rotates relative to the valve shell 31 to the second position, the optimal communication area of the second vent port 315, the first fluid hole 323 and the fluid groove 318 is equal to the cross-sectional area of the second vent port 315, increasing the optimal communication area of the second vent port 315, the first fluid hole 323 and the fluid groove 318. Alternatively, when the valve core 32 rotates relative to the valve shell 31 to the second position, the projection of the second vent port 315 coincides with the projection of the first fluid hole 323 in the direction parallel to the first axis L, i.e. the shape and size of the second vent port 315 and the first fluid hole 323 are the same.

[0082] When the first vent port 314, the second vent port 315 and the second fluid hole 324 are matched, for example, refer to Figure 9 When the valve core 32 rotates relative to the valve shell 31 to the third position, the projections of the first vent port 314 and the second vent port 315 both coincide with the projection of the second fluid hole 324 in the direction parallel to the first axis L. Then, when the valve core 32 rotates relative to the valve shell 31 to the second fluid hole 324 directly opposite the first vent port 314 and the second vent port 315, i.e. when the valve core 32 rotates relative to the valve shell 31 to the third position, the optimal communication area of the first vent port 314, the second fluid hole 324 and the fluid groove 318 is equal to the cross-sectional area of the first vent port 314, and the optimal communication area of the second vent port 315, the second fluid hole 324 and the fluid groove 318 is equal to the cross-sectional area of the second vent port 315, increasing the optimal communication area of the first vent port 314 and the second vent port 315 simultaneously communicating with the second fluid hole 324 and the fluid groove 318. Alternatively, when the valve core 32 rotates relative to the valve shell 31 to the third position, the projection of the fluid groove 318 coincides with the projection of the second fluid hole 324 in the direction parallel to the first axis L, i.e. the shape and size of the fluid groove 318 and the second fluid hole 324 are the same.

[0083] In some embodiments, referring to Figure 2 and Figure 4 The control valve 3 comprises a driving member 33 in transmission connection with the valve core 32, and the driving member 33 is used to drive the valve core 32 to rotate in the valve shell 31. Optionally, the driving member 33 is a servo motor.

[0084] In some other embodiments, the control valve 3 includes at least one of a solenoid valve or an SMA (Shape Memory Alloy) valve, or a three-position three-way solenoid valve. The control valve 3 may include multiple valve units, each of which controls the opening and closing of air passages between the air source 1 and the telescopic air bag 21, between the air source 1 and the pneumatic motor 221, between the external environment and the telescopic air bag 21, and between the external environment and the pneumatic motor 221.

[0085] In some embodiments, the control valve 3 can be switched at least in a first state, a second state, and a third state.

[0086] In the first state, control valve 3 connects the air supply 1 to the telescopic air bag 21, and simultaneously connects or disconnects the air supply 1 from the pneumatic motor 221. For example, please refer to... Figure 8 The second vent 315, the first fluid hole 323, and the fluid tank 318 are fluidly connected. The control valve 3 connects the air source 1 to the telescopic air bag 21, and disconnects the air source 1 from the pneumatic motor 221. Please refer to [link to relevant documentation]. Figure 9 The first vent 314, the second vent 315, the second fluid hole 324, and the fluid tank 318 are fluidly connected, and the control valve 3 connects the air source 1 with the pneumatic motor 221 and the telescopic air bag 21; please refer to Figure 3 When the valve core 32 rotates relative to the valve housing 31 and the two ends of the fluid channel 321 are in fluid communication with the air inlet 312 and the second air port 315 respectively, the control valve 3 connects the air source 1 with the telescopic air bag 21 and disconnects the air source 1 from the pneumatic motor 221. In the first state, the control valve 3 causes the telescopic air bag 21 to extend and expand, driving the massage component 22 to extend.

[0087] In the second state, control valve 3 disconnects the air passage between air source 1 and telescopic air bag 21, while simultaneously connecting the air passage between air source 1 and pneumatic motor 221. For example, please refer to... Figure 7 The first air vent 314, the first fluid hole 323, and the fluid groove 318 are fluidly connected. The control valve 3 connects the air source 1 with the pneumatic motor 221 and disconnects the air source 1 from the telescopic air bag 21. In the second state, the control valve 3 maintains pressure in the telescopic air bag 21, that is, the massage component 22 remains extended, and the pneumatic motor 221 drives the massage head 222 to rotate to achieve rolling kneading massage.

[0088] In the third state, control valve 3 connects the telescopic air bag 21 to the external environment or to the pneumatic motor 221 via fluid, while simultaneously disconnecting the air path between the air source 1 and the pneumatic motor 221. For an example, please refer to... Figure 3When the valve core 32 rotates the two end ports of the fluid passage 321 to be in fluid communication with the air release port 313 and the second air vent 315 respectively, the control valve 3 connects the air path between the external environment and the inflatable air bag 21, and disconnects the air path between the air source 1 and the pneumatic motor 221. When the control valve 3 is in the third state, the inflatable air bag 21 deflates and shrinks, driving the massage assembly 22 to retract.

[0089] In some embodiments, the control valve 3 includes four valve units, which can be solenoid valves. One valve unit is used to control the air path between the air source 1 and the inflatable air bag 21, and another valve unit is used to control the air path between the air source 1 and the pneumatic motor 221, thereby realizing the first state and the second state of the control valve 3. When the control valve 3 is in the first state, the air path between the air source 1 and the pneumatic motor 221 is controllably connected or disconnected.

[0090] The other two valve units are respectively used to control the air path between the inflatable air bag 21 and the external environment, and to control the air path between the inflatable air bag 21 and the pneumatic motor 221, thereby realizing the third state of the control valve 3.

[0091] The pneumatic massage system 100 of the embodiments of the present application can be applied to massage seats, neck massagers, waist massagers, eye massagers, foot massagers, and car seats, etc.

[0092] Based on the same inventive concept, the embodiments of the present application also provide a seat (not shown), which includes the pneumatic massage system 100. The seat is provided with the above-mentioned pneumatic massage system 100, so that the seat can provide a massage function and improve the use experience.

[0093] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in detail for simplicity; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A pneumatic massage system, characterized in that, The pneumatic massage system comprises: a gas source for outputting positive pressure gas; a massage device comprising a telescopic air bag and a massage assembly, the massage assembly being arranged at one end of the telescopic air bag, the massage assembly comprising a pneumatic motor and a massage head, the massage head being arranged on an output shaft of the pneumatic motor, the pneumatic motor being used to drive the massage head to rotate; a control valve, the control valve being in fluid communication with the gas source, the telescopic air bag and the pneumatic motor, the control valve being used to control the opening and closing of the gas path between the gas source and the telescopic air bag and the pneumatic motor.

2. The pneumatic massage system according to claim 1, wherein the control valve can be switched at least in the following states: a first state, the control valve is in communication with the gas path between the gas source and the telescopic air bag, at the same time, the control valve is in communication or disconnected with the gas path between the gas source and the pneumatic motor; a second state, the control valve is disconnected with the gas path between the gas source and the telescopic air bag, at the same time, the control valve is in communication with the gas path between the gas source and the pneumatic motor; a third state, the control valve is in fluid communication with the telescopic air bag and the external environment or the pneumatic motor, at the same time, the control valve is disconnected with the gas path between the gas source and the pneumatic motor.

3. A pneumatic massage system according to claim 1 or 2, characterized in that the control valve comprises: a valve housing, the valve housing being provided with a valve cavity, an air inlet, an air outlet, a first air outlet and a second air outlet, the air inlet, the air outlet, the first air outlet and the second air outlet being in fluid communication with the valve cavity; the air inlet, the first air outlet, the air outlet and the second air outlet are arranged in sequence along a first axis; a valve core, the valve core being rotatably arranged in the valve cavity along the first axis, the valve core being provided with a fluid passage, the valve core being used to fluidly connect one of the air inlet and the air outlet with one of the first air outlet and the second air outlet when the valve core rotates relative to the valve housing; wherein the air inlet is in fluid communication with the gas source, the first air outlet is in fluid communication with the pneumatic motor, the air outlet is in fluid communication with the external environment, and the second air outlet is in fluid communication with the telescopic air bag.

4. The pneumatic massage system according to claim 3, wherein the valve core is provided with a groove, the valve core and the valve housing form the fluid passage at the groove.

5. The pneumatic massaging system according to claim 4, characterized in that In the direction parallel to the first axis, the groove penetrates through opposite sides of the valve core respectively.

6. The pneumatic massaging system according to claim 1 or 2, characterized in that the control valve comprises: a valve housing, the valve housing being provided with a valve cavity, an air inlet, a first air outlet, a second air outlet and a fluid slot, the air inlet being in fluid communication with the fluid slot, the fluid slot, the first air outlet and the second air outlet being in fluid communication with the valve cavity; along the direction parallel to the first axis, the fluid slot and the first air outlet and the second air outlet are located on opposite sides of the valve cavity respectively; a valve core rotatably arranged in the valve cavity about the first axis, the valve core being provided with a first fluid hole, the valve core being configured to move the first fluid hole to be at least partially located between the fluid groove and the first vent, or to be at least partially located between the fluid groove and the second vent, when the valve core is rotated relative to the valve housing; wherein the air inlet is in fluid communication with the air source, the first vent is in fluid communication with the pneumatic motor, and the second vent is in fluid communication with the telescopic air bag.

7. The pneumatic massage system according to claim 6, wherein the valve core is further provided with a second fluid hole, the valve core being configured to move the second fluid hole to be at least partially located between the fluid groove and the first vent, and at the same time to be at least partially located between the fluid groove and the second vent, when the valve core is rotated relative to the valve housing.

8. The pneumatic massage system according to claim 7, wherein in a direction parallel to the first axis, projections of the first vent and the second vent are both coincident with a projection of the fluid groove.

9. The pneumatic massage system according to claim 8, wherein when the valve core is rotated to a first position relative to the valve housing, a projection of the first vent is coincident with a projection of the first fluid hole; and / or when the valve core is rotated to a second position relative to the valve housing, a projection of the second vent is coincident with a projection of the first fluid hole; and / or when the valve core is rotated to a third position relative to the valve housing, projections of the first vent and the second vent are both coincident with a projection of the second fluid hole.

10. A seat, characterized by a pneumatic massage system as claimed in any one of claims 1 to 9.

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