Pneumatic comfort system

Abstract

The utility model relates to the technical field of fluid control devices, in particular to a pneumatic comfort system. The combined valve set comprises a shell, an air leakage pipeline and a plurality of air valves. The plurality of air valves are arranged in the shell; the air valve is provided with an air inlet, an inflation port and a deflation port, and has an inflation state in which the air inlet is communicated with the inflation port to close the deflation port and a deflation state in which the inflation port is communicated with the deflation port to close the air inlet; the air release pipeline is arranged in the shell, and the air release ports of the air valves are in fluid communication with the air release pipeline. The combined valve bank is provided with the gas release pipeline for centralized gas release of the gas valves, so that gas discharged by the gas valves can be recycled conveniently; and the gas discharged from the gas discharge port is discharged after being buffered in the gas discharge pipeline, so that the pneumatic exhaust noise of the combination valve group is reduced, and particularly, the noise generated in a cyclic utilization closed loop is lower.

Description

TECHNICAL FIELD

[0001] The utility model relates to fluid control device technical field especially relates to a pneumatic comfort system. BACKGROUND

[0002] The pneumatic comfort system (for example: pneumatic massage system or pneumatic support system etc.) usually includes air pump, air valve module and air bag communicated with air pump through air valve module, and the air bag is supplied with air by air pump, and the air valve module controls the inflation and deflation of air bag.

[0003] The existing pneumatic comfort system usually includes multiple air bags, and the air valve module corresponds to multiple air valves, each air valve is used for controlling the inflation and deflation of one or a group of air bags. Each air valve is provided with a deflation port, and when multiple air valves deflate, multiple deflation ports discharge air to the atmosphere, which can easily produce obvious pneumatic noise, and is not conducive to the centralized recycling of the discharged air. SUMMARY

[0004] The utility model embodiment aims at providing a pneumatic comfort system to at least improve the problem of pneumatic noise generated when multiple air valves discharge air to the atmosphere, and realize the centralized discharge or recycling of the air discharged by the air valve.

[0005] The utility model embodiment adopts the following technical scheme to solve the above technical problem:

[0006] In a first aspect, the utility model provides a composite valve group, which comprises a shell, a deflation pipeline and multiple air valves; the multiple air valves are arranged in the shell; the air valve is provided with an air inlet, an inflation port and a deflation port, and has an inflation state of making the air inlet and the inflation port conductive and closing the deflation port, and a deflation state of making the inflation port and the deflation port conductive and closing the air inlet; the deflation pipeline is arranged in the shell, and the deflation ports of the multiple air valves are in fluid communication with the deflation pipeline.

[0007] In some embodiments, the deflation pipeline is formed on the shell.

[0008] In some embodiments, the deflation port of the air valve is inserted with the deflation pipeline.

[0009] In some embodiments, the air valve is provided with a first deflation port and a second deflation port, and the deflation pipeline comprises a first deflation pipeline and a second deflation pipeline, the first deflation port is in fluid communication with the first deflation pipeline, and the second deflation port is in fluid communication with the second deflation pipeline.

[0010] In some embodiments, the composite valve group further comprises a deflation nozzle; one end of the deflation nozzle is communicated with the deflation pipeline, and the other end of the deflation nozzle extends out of the shell.

[0011] In some embodiments, the plurality of gas valves are divided into a plurality of gas valve modules, each of the gas valve modules comprising at least one of the gas valves, and the air release pipeline comprises a plurality of pipeline segments in communication with each other, each of the pipeline segments being in fluid communication with the air release port of at least one of the gas valves of a gas valve module.

[0012] In some embodiments, the composite valve group further comprises an air inlet pipeline arranged in the housing, and the air inlet ports of the plurality of gas valves are in fluid communication with the air inlet pipeline.

[0013] In some embodiments, the composite valve group further comprises an air inlet nozzle, one end of the air inlet nozzle being in communication with the air inlet pipeline, and the other end of the air inlet nozzle extending out of the housing.

[0014] In the second aspect, the utility model embodiment provides a pneumatic comfort system, the pneumatic comfort system comprises a gas source device, a plurality of air bags and the composite valve group as any one of the above, the gas source device has positive pressure air supply port and negative pressure air inlet, the positive pressure air supply port is in fluid communication with the air inlet port of a plurality of gas valves, and the negative pressure air inlet is in fluid communication with the air release pipeline, and a plurality of air bags are in fluid communication with the inflation port of a plurality of gas valves respectively.

[0015] In some embodiments, the pneumatic comfort system further comprises a low-pressure generator, the low-pressure generator is provided with a first opening, a second opening and a low-pressure port, the low-pressure port is in fluid communication between the first opening and the second opening, the low-pressure port is used to generate negative pressure when gas flows from the first opening to the second opening, the first opening is communicated with the atmosphere, the low-pressure port of the low-pressure generator is in fluid communication with the air release pipeline, and the negative pressure air inlet of the gas source device is in fluid communication with the second opening.

[0016] In the composite valve group of the utility model embodiment, the air release pipeline is arranged to be in fluid communication with the air release ports of the plurality of gas valves, the gas discharged by the plurality of gas valves during air release is concentrated and discharged through the air release pipeline, and the gas discharged by the plurality of gas valves can be concentrated and discharged or recycled. Moreover, the gas discharged through the air release ports is buffered in the air release pipeline before being discharged, instead of being directly discharged to the atmosphere, which is conducive to reducing the pneumatic exhaust noise of the composite valve group, and especially improves the problem of pneumatic noise generated when the plurality of gas valves simultaneously release air.

[0017] The air release pipeline can be formed on the housing, so that the gas valve and the air release pipeline are conveniently connected, and the overall composite valve group structure is more compact.

[0018] The positive pressure gas supply port of the gas source device is in fluid communication with the air inlet of the air valve for supplying gas to the gas bag, the air inlet of the air valve is in fluid communication with the gas bag, and the negative pressure air inlet of the gas source device is in fluid communication with the air release pipeline, so that the overall pneumatic comfort system forms a closed loop, the air release effect of the gas bag can be enhanced through the air suction effect of the gas source device, the air discharged by the air valve can be recycled, at least part of the gas circulates in the pneumatic comfort system, the gas exchange between the pneumatic comfort system and the external environment is reduced, and the noise of pneumatic exhaust and air suction is reduced.

[0019] Further, the pneumatic comfort system can be further provided with a low-pressure generator, the low-pressure port of the low-pressure generator is in fluid communication with the air release pipeline, the air outlet of the low-pressure generator is in communication with the negative pressure air inlet of the gas source device, and the air inlet of the low-pressure generator is in communication with the atmosphere, so that the air pressure in the air release pipeline can be further reduced when the gas source device sucks in air, the air release speed of the gas bag is further improved, and at the same time of ensuring that at least part of the gas circulates in the pneumatic comfort system, part of the gas can exchange with the atmosphere.

[0020] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, and in order to let the above and other purposes, characteristics and advantages of the utility model can be more obvious and easy to understand, the specific embodiment of the utility model is as follows. BRIEF DESCRIPTION OF DRAWINGS

[0021] One or more embodiments are exemplarily described by corresponding drawings, which do not constitute limitation to the embodiments, elements with the same reference numerals in the drawings represent similar elements, unless specially stated, the drawings do not constitute proportional limitation.

[0022] Figure 1 It is a structure schematic view of the composite valve group of the utility model embodiment;

[0023] Figure 2 It is an explosion schematic view of the composite valve group of the utility model embodiment, and the air release pipeline is arranged in the shell;

[0024] Figure 3 It is Figure 2 It is a sectional structure schematic view of the air valve in

[0025] Figure 4 It is an explosion structure schematic view of the composite valve group of the utility model embodiment, and the air release pipeline is arranged independently of the shell;

[0026] Figure 5 It is Figure 4 It is a sectional structure schematic view of the air valve in

[0027] Figure 6 Part structure diagram of pneumatic comfort system of the utility model embodiment.

[0028] The reference signs in the detailed description are as follows:

[0029] 100, composite valve group;

[0030] 1, housing; 11, first housing; 12, second housing;

[0031] 2, air release pipeline; 21, air release plug-in interface;

[0032] 3, air valve; 31, air inlet; 32, inflation port; 33, air release port; 34, air release plug-in column; 35, air inlet plug-in column;

[0033] 36, valve body; 361, first valve cavity; 362, second valve cavity; 363, connecting air passage; 364, notch; 37, first valve core; 38, second valve core; 391, first coil; 392, second coil;

[0034] 4, air release nozzle;

[0035] 5, air inlet pipeline; 51, air inlet plug-in interface;

[0036] 6, air inlet nozzle;

[0037] 7, circuit board; 71, terminal socket;

[0038] 200, pneumatic comfort system;

[0039] 210, air source device; 211, negative pressure air inlet; 212, positive pressure air supply port;

[0040] 220, air bag;

[0041] 230, gas storage tank;

[0042] 240, low pressure generator; 241, low pressure port; 242, first opening; 243, second opening. DETAILED DESCRIPTION

[0043] In order to facilitate the understanding of the utility model, the utility model 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 utility model and are not used to limit the utility model. It should be noted that when an element is described as "fixed to" another element, it can be directly on another 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 another element, or one or more intervening elements can be present therebetween.

[0044] 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 in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the 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. It is not intended to exclude, for example, other additives, components, integers or steps.

[0045] In the description of the embodiments of the application, the orientation 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 orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the application and simplifying the description, and is not intended to 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 application.

[0046] In the description of the embodiments of the application, the use of the terms "first", "second", and the like to qualify elements is merely for the convenience of distinguishing 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 application. In the description of the embodiments of the application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0047] Unless otherwise defined, all technical and scientific terms used in the specification have the same meaning as commonly understood by one of ordinary skill in the art to which the application belongs. The terms used in the specification of the application are only for the purpose of describing the specific embodiments and are not intended to limit the application. The term "and / or" used in the specification includes any and all combinations of one or more related listed items.

[0048] In addition, the technical features involved in the different embodiments of the application described below can be combined with each other as long as there is no conflict.

[0049] Please refer to Figure 1 , Figure 2 and Figure 4 , the embodiments of the application provide a composite valve group 100, the composite valve group 100 includes a shell 1, a deflation pipeline 2 and a plurality of air valves 3.

[0050] The plurality of air valves 3 are arranged in the housing 1. The air valve 3 is provided with an air inlet 31, an air charging port 32 and an air exhaust port 33. The air valve 3 has an air charging state in which the air inlet 31 is in communication with the air charging port 32 and the air exhaust port 33 is closed, and has an air exhaust state in which the air charging port 32 is in communication with the air exhaust port 33 and the air inlet 31 is closed. The air exhaust conduit 2 is arranged in the housing 1, and the air exhaust ports 33 of the plurality of air valves 3 are in fluid communication with the air exhaust conduit 2.

[0051] For the above-mentioned housing 1, please refer to Figure 1 and Figure 2 The housing 1 includes a first housing 11 and a second housing 12. The first housing 11 and the second housing 12 are engaged with each other, and the plurality of air valves 3 are arranged in the accommodation space formed by the engagement of the first housing 11 and the second housing 12. That is, the first housing 11 and the second housing 12 form an accommodation space to accommodate and protect the air valves 3. Alternatively, the edges of the first housing 11 and the edges of the second housing 12 are connected, or the first housing 11 and the second housing 12 are engaged with each other, that is, the first housing 11 and the second housing 12 form a closed accommodation space to enhance the protection effect of the air valves 3. Alternatively, the side of the first housing 11 facing the second housing 12 is provided with a groove, and / or the side of the second housing 12 facing the first housing 11 is provided with a groove, and the first housing 11 and the second housing 12 form an accommodation space at the grooves.

[0052] In an optional embodiment, the composite valve group 100 can further include a circuit board 7, and the plurality of air valves 3 are mounted on the circuit board 7 and electrically connected with the circuit board 7, and the circuit board 7 is fixedly mounted in the accommodation space formed by the engagement of the first housing 11 and the second housing 12, so that the plurality of air valves 3 are mounted in the housing 1. The circuit board 7 can be fixedly connected with the first housing 11 and / or the second housing 12. The circuit board 7 is provided with a terminal socket 71 exposed outside the housing 1 to facilitate connection with an external power supply, a communication controller and the like.

[0053] In the application of the composite valve group 100 to the pneumatic comfort system, for the above-mentioned air valve 3, the air inlet 31 is used to be in fluid communication with the positive pressure air source, the air charging port 32 is used to be in fluid communication with the air bag 220, and the air exhaust conduit 2 is in fluid communication with the external environment or the negative pressure air source.

[0054] When the air valve 3 is in the air charging state, the positive pressure air source is in fluid communication with the air bag 220 to supply air to the air bag 220, so that the air bag 220 is inflated and expanded; when the air valve 3 is in the air exhaust state, the negative pressure air source or the external environment is in fluid communication with the air bag 220 to suck the air in the air bag 220 or the air bag 220 is self-exhausted under the action of its contraction force, so that the air bag 220 is deflated and contracted.

[0055] In some embodiments, the air valve 3 further has a pressure maintaining state in which the inflation port 32 and the deflation port 33 are both closed, and when the air valve 3 is in the pressure maintaining state, the air bag 220 maintains a shape, for example, maintains an inflated state.

[0056] For the air valve 3 described above, the air valve 3 can include a solenoid valve, an SMA (Shape Memory Alloy) valve, such as a two-position three-way solenoid valve, a three-position three-way solenoid valve, and can be any form of air valve that can achieve corresponding pneumatic control functions, including but not limited to the air valves listed above. Among them, the two-position three-way solenoid valve can have an inflation state and a deflation state, and the three-position three-way solenoid valve can have an inflation state, a pressure maintaining state, and a deflation state.

[0057] The composite valve group of the embodiments of the utility model, please refer to Figures 2 to 5 The composite valve group of the embodiments of the utility model, please refer to

[0058] When the first valve core 37 opens the inflation port 32 and the second valve core 38 closes the through port of the connection gas channel 363 and the second valve cavity 362, the gas flowing into the inflation port 32 can flow into the inflation port 32 through the first valve cavity 361 to supply gas to the air bag 220, and at this time, the air valve 3 is in the inflation state.

[0059] When the first valve core 37 closes the inflation port 32 and the second valve core 38 closes the through port of the connection gas channel 363 and the second valve cavity 362, the gas in the air bag 220 cannot flow out, and at this time, the air valve 3 is in the pressure maintaining state.

[0060] When the first spool 37 closes the inlet port 31 and the second spool 38 opens the through port connecting the gas passage 363 and the second valve chamber 362, the gas in the gas bag 220 can flow into the gas outlet 33 through the inlet port 32, the first valve chamber 361, the gas passage 363, and the second valve chamber 362, and the gas valve 3 is in the gas outlet state.

[0061] Alternatively, the switching of the first spool 37 closing or opening the inlet port 31 can be controlled by changing the direction of the current flowing into the first coil 391, or a first spring can be provided to elastically urge the first spool 37 to normally close the inlet port 31, and to magnetically control the first spool 37 to open the inlet port 31 when the current flows into the first coil 391. In addition, the switching of the second spool 38 closing or opening the through port connecting the gas passage 363 and the second valve chamber 362 can be controlled by changing the direction of the current flowing into the second coil 392, or a second spring can be provided to elastically urge the second spool 38 to normally close the through port connecting the gas passage 363 and the second valve chamber 362, and to magnetically control the second spool 38 to open the through port connecting the gas passage 363 and the second valve chamber 362 when the current flows into the second coil 392.

[0062] In some embodiments, as shown in Figure 3 The gas outlet 33 can be formed in the side wall of the second valve chamber 362, and the gas outlet 33 is located at the end of the second valve chamber 362 close to the gas passage 363. When the second spool 38 opens the through port connecting the gas passage 363 and the second valve chamber 362, the gas outlet 33 directly communicates with the gas passage 363 through the chamber at the end of the second valve chamber 362 close to the gas passage 363, and the gas outlet path is short.

[0063] In some other embodiments, as shown in Figure 5 The gas outlet 33 can be formed in the end of the second valve chamber 362 away from the gas passage 363, and the gas outlet 33 is located at the end of the second valve chamber 362 away from the gas passage 363 and keeps open with the second valve chamber 362, such as forming a gap 364 in the side wall of the gas outlet 33 to keep the internal passage of the gas outlet 33 open with the second valve chamber 362. When the second spool 38 opens the through port connecting the gas passage 363 and the second valve chamber 362, the gas outlet 33 communicates with the gas passage 363 through the gap between the second spool 38 and the second valve chamber 362, and the gas outlet path is long.

[0064] It can be understood that a plurality of gas valves 3 of the composite valve group 100 can be connected to a plurality of gas bags 220 respectively, for controlling the inflation and deflation of the plurality of gas bags 220.

[0065] Since the air release pipe 2 is in fluid communication with the air release ports 33 of the plurality of air valves 3, when the air valves 3 release air, the air released by the air valves 3 flows into the air release pipe 2. That is, the air release pipe 2 is used to release the air released by the plurality of air release ports 33, so as to realize the centralized release or recycling of the air released by the air valves 3. Moreover, since the air released by the air release ports 33 is released after being buffered in the air release pipe 2, rather than being directly released to the atmosphere, the air release noise of the composite valve group 100 is reduced, and the problem of air release noise caused by the simultaneous air release of the plurality of air valves 3 is improved.

[0066] For the air release pipe 2, in some embodiments, as shown in Figure 2 , the air release pipe 2 can be formed on the shell 1. That is, the air release pipe 2 is integrally formed on the shell 1. For example, the shell 1 can be made of plastic material, and the air release pipe 2 is integrally formed on the shell 1 when the shell 1 is formed. In this way, the air release pipe 2 and the shell 1 are integrated, so that the structure of the composite valve group 100 is compact.

[0067] In other embodiments, as shown in Figure 4 , the air release pipe 2 can be arranged independently of the shell 1, rather than being formed on the shell 1. For example, the air release pipe 2 can be an independent pipe and is fixedly arranged on the circuit board 7 or the shell 1 and is in fluid communication with the air release ports 33 of the plurality of air valves 3. Alternatively, the air release pipe 2 is bonded to the circuit board 7.

[0068] In some embodiments, when the circuit board 7 is located between the air release pipe 2 and the air valves 3, the end portion of the air release port 33 of the air valve 3 can extend through the circuit board 7 and be connected to the air release pipe 2, or the connection portion of the air release pipe 2 and the air release port 33 can extend through the circuit board 7 and be connected to the air release port 33 of the air valve 3.

[0069] In some embodiments, the air release port 33 of the air valve 3 is inserted into the air release pipe 2. For example, as shown in Figure 2 and Figure 3 , the air release pipe 2 is provided with a plurality of air release insertion ports 21, and the air release insertion ports 21 are in fluid communication with the air release pipe 2. The air valve 3 is provided with an air release insertion column 34, and the air release port 33 penetrates to the end face of the air release insertion column 34. The air release insertion column 34 is inserted into the air release insertion port 21, so that the air release port 33 is in fluid communication with the air release pipe 2.

[0070] In this way, the air release insertion column 34 is matched with the air release insertion port 21. For example, the air release insertion column 34 is in the shape of a cylinder, and the air release insertion port 21 is in the shape of a circle. The air release insertion column 34 is in interference fit with the inner wall of the air release insertion port 21, so as to seal the air release insertion port 21 and to realize the fluid communication between the air release port 33 and the air release pipe 2. Alternatively, a sealing ring, such as a rubber ring or a silica gel ring, is arranged between the air release insertion column 34 and the inner wall of the air release insertion port 21, so as to enhance the sealing effect of the air release insertion column 34 on the air release insertion port 21.

[0071] When the deflation conduit 2 is formed on the housing 1, the deflation plug interface 21 can be formed on the side of the housing 1 facing the deflation port 33 of the gas valve 3, and the deflation plug interface 21 penetrates into the deflation conduit 2, so that when the deflation plug 34 is plugged into the deflation plug interface 21, the deflation port 33 is in fluid communication with the deflation conduit 2. In some embodiments, when the deflation conduit 2 is formed on the housing 1, and the circuit board 7 is located between the deflation conduit 2 and the gas valve 3, as shown in the embodiments of Figure 2 and Figure 3 , the deflation plug 34 can extend through the circuit board 7 and be plugged into the deflation plug interface 21 of the deflation conduit 2 to achieve the communication of the deflation port 33 with the deflation conduit 2.

[0072] When the deflation conduit 2 is formed on the housing 1, the deflation plug interface 21 can be formed on the side of the housing 1 facing the deflation port 33 of the gas valve 3, and the deflation plug interface 21 penetrates into the deflation conduit 2, so that when the deflation plug 34 is plugged into the deflation plug interface 21, the deflation port 33 is in fluid communication with the deflation conduit 2. In some embodiments, when the deflation conduit 2 is formed on the housing 1, and the circuit board 7 is located between the deflation conduit 2 and the gas valve 3, as shown in the embodiments of Figure 4 and Figure 5 , the deflation plug 34 can extend through the circuit board 7 and be plugged into the deflation plug interface 21 of the deflation conduit 2 to achieve the communication of the deflation port 33 with the deflation conduit 2.

[0073] In some embodiments, the gas valve 3 is provided with a first deflation port and a second deflation port, such as the deflation ports 33 of the gas valve 3 shown in Figure 3 and Figure 5 , and the deflation conduit 2 includes a first deflation conduit and a second deflation conduit, the first deflation port is in fluid communication with the first deflation conduit, and the second deflation port is in fluid communication with the second deflation conduit. For example, the gas valve 3 is provided with two deflation ports 33, the composite valve group 100 includes two deflation conduits 2, and the two deflation ports 33 of the gas valve 3 are in fluid communication with the two deflation conduits 2, respectively. When the gas valve 3 is in the deflation state, the two deflation ports 33 of the gas valve 3 are in fluid communication with the air bag 220, and the air bag 220 can be deflated through the two deflation conduits 2 in fluid communication with the gas valve 3, thereby improving the deflation speed of the air bag 220. When the gas valve 3 is in the inflation state or the pressure maintaining state, the two deflation ports 33 of the gas valve 3 are closed.

[0074] In some embodiments, one of the two gas exhaust ports 33 of each gas valve 3 is permanently sealed, such as by a sealing plug. That is, some of the plurality of gas valves 3 are connected to one of the two gas exhaust conduits 2, and the rest of the plurality of gas valves 3 are connected to the other of the two gas exhaust conduits 2, so that the plurality of gas valves 3 can be exhausted through the two gas exhaust conduits 2 respectively. In this case, when the gas exhaust port 33 is sealed by the sealing plug, the gas exhaust conduit 2 through which each gas valve 3 is exhausted can be flexibly adjusted by disassembling and assembling the sealing plug during assembly of the composite valve body.

[0075] In the embodiments of the present application, the two gas exhaust conduits 2 can be in fluid communication with different exhaust environments. For example, one of the two gas exhaust conduits 2 is in fluid communication with a negative pressure device, which can be the negative pressure air inlet 211 of the air source device 210 described below, so as to reduce the air pressure in the gas exhaust conduit 2, increase the exhaust speed of the gas valve 3 in fluid communication with the gas exhaust conduit 2, and make the air bag 220 in fluid communication with the gas valve 3 quickly exhaust, and the exhaust gas can be further recycled and recharged. The other gas exhaust conduit 2 can be directly in fluid communication with the external environment, so that the exhaust speed of the gas valve 3 in fluid communication with the gas exhaust conduit 2 remains normal, so that the air bag 220 in fluid communication with the gas valve 3 can be normally exhausted.

[0076] In some embodiments, referring to Figure 2 , the composite valve group 100 further comprises a gas exhaust nozzle 4. One end of the gas exhaust nozzle 4 is in communication with the gas exhaust conduit 2, and the other end of the gas exhaust nozzle 4 extends out of the shell 1, so as to be externally connected to an exhaust device or a recycling device located outside the shell 1. The gas exhaust nozzle 4 is used to connect with the gas exhaust conduit 2, so as to facilitate the centralized exhaust or recycling of the exhaust gas discharged from the gas exhaust conduit 2 through the pipeline, for example, the other end of the gas exhaust nozzle 4 can be directly connected to the atmosphere, or in fluid communication with a recycling device, so as to recycle the exhaust gas discharged from the gas exhaust conduit 2. The recycling device can be an air pump, an air tank, etc. Alternatively, the gas exhaust nozzle 4 is formed on the shell 1 or arranged on the shell 1. Alternatively, when the gas exhaust conduit 2 is arranged independently of the shell 1, the gas exhaust nozzle 4 is formed on the gas exhaust conduit 2 or arranged on the gas exhaust conduit 2.

[0077] In some embodiments, referring to Figure 2 , the composite valve group 100 further comprises an air inlet conduit 5 arranged in the shell 1, and the air inlets 31 of the plurality of gas valves 3 are in fluid communication with the air inlet conduit 5. Since the air inlet conduit 5 is in fluid communication with the air inlets 31 of the plurality of gas valves 3, when the plurality of gas valves 3 are supplied with air, the air inlet conduit 5 only needs to be in fluid communication with an external air source, and unified air supply can be achieved.

[0078] It can be understood that the air inlets 31 of the plurality of air valves 3 arranged in the shell 1 are in fluid communication through the air inlet pipeline 5, and the air outlets 33 of the plurality of air valves 3 are in fluid communication through the air outlet pipeline 2, so that the plurality of air valves 3 are connected head to head and tail to tail, and are arranged in parallel.

[0079] In some embodiments, referring to Figure 2 , the air inlet pipeline 5 is formed on the shell 1. That is, the air inlet pipeline 5 is integrally formed on the shell 1. For example, the shell 1 can be made of plastic material, and the air inlet pipeline 5 is integrally formed on the shell 1 when the shell 1 is formed, so that the air inlet pipeline 5 and the shell 1 are integrally arranged, and the overall composite valve group 100 is more compact in structure.

[0080] In other embodiments, the air inlet pipeline 5 can be arranged independently of the shell 1, rather than being formed on the shell 1. For example, the air inlet pipeline 5 can be an independent pipeline and is fixedly installed on the circuit board 7 or the shell 1 and is in fluid communication with the air inlets 31 of the plurality of air valves 3.

[0081] In some embodiments, referring to Figure 2 , the composite valve group 100 further comprises an air inlet nozzle 6. One end of the air inlet nozzle 6 is in communication with the air inlet pipeline 5, and the other end of the air inlet nozzle 6 extends out of the shell 1 for air connection with an external air source. The air inlet nozzle 6 is used to connect with the air inlet pipeline 5, so as to facilitate the air inlet pipeline 5 to be connected with the external air source through air connection, so as to realize fluid communication. Optionally, the air inlet nozzle 6 is formed on the shell 1 or arranged on the shell 1. Optionally, when the air inlet pipeline 5 is arranged independently of the shell 1, the air inlet nozzle 6 is formed on the air inlet pipeline 5 or arranged on the air inlet pipeline 5.

[0082] In some embodiments, the air inlets 31 of the air valves 3 are inserted into the air inlet pipeline 5. For example, referring to Figs. 2 and Figure 3 , the air inlet pipeline 5 is provided with a plurality of air inlet insertion interfaces 51; the air valve 3 is provided with an air inlet insertion column 35, the air inlet 31 penetrates to the end face of the air inlet insertion column 35, and the air inlet insertion column 35 is inserted into the air inlet insertion interface 51, so that the air inlet 31 is in fluid communication with the air inlet pipeline 5.

[0083] In some embodiments, the air inlets 31 of the air valves 3 are inserted into the air inlet pipeline 5. For example, referring to Figs. 2 and Figure 3 , the air inlet pipeline 5 is provided with a plurality of air inlet insertion interfaces 51; the air valve 3 is provided with an air inlet insertion column 35, the air inlet 31 penetrates to the end face of the air inlet insertion column 35, and the air inlet insertion column 35 is inserted into the air inlet insertion interface 51, so that the air inlet 31 is in fluid communication with the air inlet pipeline 5.

[0084] When the air inlet pipe 5 is formed on the shell 1, the air inlet plug interface 51 can be formed on the side of the shell 1 facing the air inlet port 31 of the air valve 3, and the air inlet plug interface 51 penetrates into the air inlet pipe 5, so that when the air inlet plug 35 is plugged into the air inlet plug interface 51, the air inlet port 31 is in fluid communication with the air inlet pipe 5.

[0085] In some embodiments, referring to Figure 2 , the plurality of air valves 3 are divided into a plurality of air valve modules, each air valve module includes at least one air valve 3, and the air release pipe 2 includes a plurality of pipe sections in communication with each other, each pipe section is in fluid communication with the air release port 33 of at least one air valve 3 of an air valve module. By corresponding each air valve module with a plurality of pipe sections respectively, the air valve modules do not need to be arranged linearly, for example, the air valve modules can be arranged side by side, that is, the air valves 3 of each air valve module are arranged in an array, so that the air valves 3 are arranged more compactly, and the volume of the composite valve group 100 is reduced. Alternatively, any two pipe sections of the air release pipe 2 are parallel to each other or have an included angle. Correspondingly, the air inlet pipe 5 can include a plurality of air inlet pipe sections in communication with each other, each air inlet pipe section is in fluid communication with the air inlet port 31 of at least one air valve 3 of an air valve module.

[0086] By dividing the plurality of air valves 3 into a plurality of air valve modules, the plurality of air valves 3 can be classified. For example, the air valves 3 of different air valve modules can be used to control air bags 220 installed at different positions of the seat, the air valves 3 of one air valve module are used to control seat back support air bags, the air valves 3 of another air valve module are used to control seat back massage air bags, and the air valves 3 of another air valve module are used to control seat side wing support air bags. Since the air valve modules do not need to be arranged linearly, the air valve modules have obvious partitions, and the plurality of air valves 3 and the plurality of different types of air bags can be accurately connected.

[0087] In some embodiments, referring to Figure 6 , the utility model further provides a pneumatic comfort system 200, the pneumatic comfort system 200 includes a composite valve group 100, a gas source device 210 and a plurality of air bags 220. The plurality of air bags 220 are in fluid communication with the air inlet port 32 of the plurality of air valves 3 respectively, the gas source device 210 is used to supply air to the plurality of air bags 220 or suck air from the air bags 220, and each air valve 3 controls the inflation and deflation of the corresponding air bag 220.

[0088] For the above-mentioned gas source device 210, the gas source device 210 includes but is not limited to an air pump, an air compressor and the like. In some embodiments, referring to Figure 6, the gas source device 210 has a positive pressure gas outlet 212 and a negative pressure gas inlet 211, the positive pressure gas outlet 212 is in fluid communication with the gas inlets 31 of the plurality of gas valves 3, and the negative pressure gas inlet 211 is in fluid communication with the gas exhaust pipeline 2. The negative pressure gas inlet 211 is used for gas inflow, and the positive pressure gas outlet 212 is used for compressed gas outflow.

[0089] When the gas source device 210 is turned on and the gas valve 3 is in the inflation state, the gas source device 210 discharges compressed gas from the positive pressure gas outlet 212 to inflate the gas bag 220. When the gas source device 210 is turned on and the gas valve 3 is in the deflation state, the gas in the gas bag 220 flows out through the gas exhaust port 33 of the gas valve 3 and is sucked back through the negative pressure gas inlet 211 of the gas source device 210, increasing the deflation degree of the gas bag 220 and accelerating the deflation of the gas bag 220. When the gas valve 3 is in the pressure maintaining state, the gas bag 220 maintains the shape, for example, maintains the inflation state.

[0090] Because the negative pressure gas inlet 211 of the gas source device 210 is in fluid communication with the gas exhaust pipeline 2, the gas discharged by the plurality of gas valves 3 corresponding to the plurality of gas bags 220 is sucked back, and the positive pressure gas outlet 212 of the gas source device 210 is in fluid communication with the gas inlets 31 of the plurality of gas valves 3, so that the sucked back gas is supplied to the gas bag 220 again, so that the gas circuit of the overall pneumatic comfort system 200 constitutes a closed loop, at least part of the gas circulates in the pneumatic comfort system 200, reduces the gas exchange between the pneumatic comfort system 200 and the external environment, and reduces the noise of pneumatic exhaust and air intake.

[0091] In some embodiments, the negative pressure gas inlet 211 of the gas source device 210 is connected to the gas exhaust nozzle 4 through the gas pipe to realize fluid communication with the gas exhaust pipeline 2.

[0092] In some embodiments, the positive pressure gas outlet 212 of the gas source device 210 is in fluid communication with the gas inlet pipeline 5 to realize fluid communication between the positive pressure gas outlet 212 of the gas source device 210 and the gas inlets 31 of the plurality of gas valves 3. In further embodiments, the positive pressure gas outlet 212 of the gas source device 210 is connected to the gas inlet nozzle 6 through the gas pipe to realize fluid communication with the gas inlet pipeline 5.

[0093] In some embodiments, referring to Figure 6 , the pneumatic comfort system 200 further comprises a gas storage tank 230, which is in fluid communication between the positive pressure gas outlet 212 of the gas source device 210 and the gas inlet 31 of the gas valve 3. The gas storage tank 230 can be a metal tank, a plastic tank, etc., and can contain high-pressure gas. The gas storage tank 230 can store high-pressure gas, which is beneficial to improve the inflation expansion stroke and inflation response speed of the gas bag 220.

[0094] In some other embodiments, a negative pressure storage tank can be further arranged between the negative pressure air inlet 211 of the air source device 210 and the air exhaust pipeline 2.

[0095] In some embodiments, referring to Figure 6 , the pneumatic comfort system 200 further comprises a low pressure generator 240, the low pressure generator 240 is provided with a first opening 242, a second opening 243, and a low pressure port 241, the low pressure port 241 is in fluid communication between the first opening 242 and the second opening 243, the low pressure port 241 is used to generate negative pressure when the gas flows from the first opening 242 to the second opening 243, the first opening 242 is communicated with the atmosphere, the low pressure port 241 of the low pressure generator 240 is in fluid communication with the air exhaust pipeline 2, and the negative pressure air inlet 211 of the air source device 210 is in fluid communication with the second opening 243.

[0096] Exemplarily, the low pressure generator 240 is in the shape of a tube, the openings at both ends of the tube are the first opening 242 and the second opening 243 respectively, and the low pressure port 241 can be formed through the wall of the tube of the low pressure generator 240. During the process of the gas flowing from the first opening 242 to the second opening 243, the flow rate of the gas flowing from the first opening 242 to the second opening 243 is greater than the flow rate of the gas in the low pressure port 241, and the faster the fluid flow rate, the smaller the pressure. Therefore, the gas pressure of the gas flowing from the first opening 242 to the second opening 243 is smaller than the gas pressure of the gas in the low pressure port 241, so that the gas pressure at the low pressure port 241 is reduced and lower than the atmospheric pressure, that is, negative pressure is generated. The low pressure port 241 can be directly in fluid communication with the air exhaust pipeline 2, or in fluid communication with the air exhaust pipeline 2 through an air pipe, and the low pressure generator 240 can be integrated into the composite valve group 100; the second opening 243 can be in fluid communication with the negative pressure air inlet 211 through an air pipe.

[0097] By arranging the low pressure port 241 of the low pressure generator 240 in fluid communication with the air exhaust pipeline 2, the second opening 243 of the low pressure generator 240 in communication with the negative pressure air inlet 211 of the air source device 210, and the first opening 242 of the low pressure generator 240 in communication with the atmosphere, the air pressure in the air exhaust pipeline 2 can be further reduced when the air source device 210 sucks in air, the air exhaust speed of the air bag 220 is further improved, the air exhaust effect of the air bag 220 is enhanced, and part of the gas can be exchanged with the atmospheric environment while ensuring that at least part of the gas circulates in the pneumatic comfort system 200.

[0098] In addition, the negative pressure air inlet 211 is in fluid communication with the second opening 243, the low pressure driving of the low pressure generator 240 and the air supply for the air bag 220 are realized by a single air source device 210, and an additional driving air pump does not need to be arranged, thereby reducing the number of air source devices 210.

[0099] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application, rather than limiting them; under the idea of the present application, the technical features in the above examples or different examples 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 examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for 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 comfort system, characterized in that include: A composite valve assembly includes a housing, a venting pipe, and multiple air valves disposed within the housing. Each air valve has an inlet, an inflation port, and a venting port. The air valve is configured to be in an inflation state where the inlet is connected to the inflation port and the venting port is closed, and to be in a venting state where the inflation port is connected to the venting port and the inlet is closed. The venting pipe is disposed within the housing, and the venting ports of the multiple air valves are in fluid communication with the venting pipe. The gas source device has a positive pressure gas supply port and a negative pressure gas inlet. The positive pressure gas supply port is in fluid communication with the gas inlets of the plurality of gas valves, and the negative pressure gas inlet is in fluid communication with the gas venting pipe. Multiple air bags are in fluid communication with the inflation ports of multiple air valves.

2. The pneumatic comfort system of claim 1, wherein, The vent pipe is formed on the housing.

3. Aerodynamic comfort system according to claim 1 or 2, characterized in that The vent of the air valve is connected to the vent pipe.

4. The pneumatic comfort system of claim 1, wherein, The air valve is provided with a first vent and a second vent, and the venting pipe includes a first venting pipe and a second venting pipe. The first vent is in fluid communication with the first venting pipe, and the second vent is in fluid communication with the second venting pipe.

5. The pneumatic comfort system of claim 1, wherein, It also includes a vent nozzle; one end of the vent nozzle is connected to the vent pipe, and the other end of the vent nozzle extends out of the housing.

6. The pneumatic comfort system of claim 1, wherein, The plurality of air valves are divided into a plurality of air valve modules, each air valve module including at least one air valve, and the venting pipe includes a plurality of interconnected pipe sections, each pipe section being in fluid communication with the venting port of at least one air valve of an air valve module.

7. The pneumatic comfort system of claim 1, wherein, It also includes an air intake pipe, which is disposed inside the housing, and the air inlets of the plurality of air valves are in fluid communication with the air intake pipe.

8. The pneumatic comfort system of claim 7, wherein, It also includes an air inlet; one end of the air inlet is connected to the air intake pipe, and the other end of the air inlet extends out of the housing.

9. The pneumatic comfort system of claim 1, wherein, It also includes a low-pressure generator; the low-pressure generator is provided with a first opening, a second opening and a low-pressure port, the low-pressure port is fluidly connected between the first opening and the second opening, the low-pressure port is used to generate negative pressure when gas flows from the first opening to the second opening, the first opening is connected to the atmosphere, the low-pressure port of the low-pressure generator is fluidly connected to the vent pipe, and the negative pressure air inlet of the gas source device is fluidly connected to the second opening.

Images