Fluid control valve, fluid distribution device and pneumatic comfort system

Abstract

The utility model relates to fluid control technical field discloses a kind of fluid control valve, fluid distribution device and pneumatic comfort system, the fluid control valve of above-mentioned includes valve body and valve core.Valve body is equipped with lead-through chamber and with the first medium opening and second medium opening of lead-through chamber intercommunication, valve core is arranged in lead-through chamber, valve core closes the first medium opening and opens second medium opening in first position, valve core opens the first medium opening and closes second medium opening in second position.The fluid control valve of the utility model, when pneumatic side wing support valve group needs to be quickly inflated, gas pump and the gas of gas storage tank can be efficiently transmitted through connecting channel, ensure large-flow supply;When pneumatic massage valve group needs stable gas supply, gas can also be continuously, uniformly output through the flow channel layout, avoid the functional failure caused by insufficient flow.

Description

Technical Field

[0001] This utility model relates to the field of fluid control technology, and in particular to a fluid control valve, a fluid distribution device, and a pneumatic comfort system. Background Technology

[0002] In pneumatic comfort systems, such as massage, lumbar support, and side support systems, the air source and air bag are connected through an air valve module. The air valve module is equipped with a main air intake channel and a main air intake switch valve to control the gas entering each corresponding air valve.

[0003] When the air valve module contains multiple air valve groups with different functions, such as massage, lumbar support, and side support valve groups, the air path of the main air intake channel needs to be switched to adapt to different air usage needs. For example, rapid side support may require air pump and air tank to supply air at the same time, while pneumatic massage may only require air pump to supply air.

[0004] At this point, multiple air passages need to be installed within the main intake switch valve to enable air path switching between the valve module and the air source device. However, installing multiple air passages will increase the size of the intake switch valve. When the size requirements of the valve module are high, the size of the connecting passage between adjacent airflow channels cannot be guaranteed, which can easily lead to a small gas flow rate. Therefore, how to ensure the gas flow rate of the connecting passage while reducing the space occupied by the intake switch valve has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] To address the shortcomings of the prior art, this utility model provides a fluid control valve, a fluid distribution device, and a pneumatic comfort system. The fluid control valve is designed with a layout of multiple flow channels to reduce the space occupancy rate of the fluid control valve and reduce local resistance losses caused by flow channel bends and intersections, ensuring smooth gas flow in the flow channels and connecting channels.

[0006] The technical effects to be achieved by this utility model are realized through the following aspects: In a first aspect, this utility model provides a fluid control valve, comprising: The valve includes a valve body and a valve core; the valve body is provided with a conduction chamber and a first medium opening and a second medium opening communicating with the conduction chamber; the valve core is disposed in the conduction chamber; the valve core is in a first position to close the first medium opening and open the second medium opening; and the valve core is in a second position to open the first medium opening and close the second medium opening. The valve body is further provided with a first medium interface, a second medium interface, a third medium interface, a fourth medium interface, a first flow channel, a second flow channel, a third flow channel, a fourth flow channel, and a connecting flow channel; the first medium interface is connected to the conductive chamber through the first flow channel, the first end of the second flow channel is connected to the second medium opening, the second end of the second flow channel is connected to the first end of the connecting flow channel, the second end of the connecting flow channel is connected to the first end of the third flow channel, the second end of the third flow channel is connected to the second medium interface, the third medium interface is connected to the first medium opening through the fourth flow channel, and the fourth medium interface is connected to the first flow channel; the second flow channel and the third flow channel extend in the same direction.

[0007] In some implementations, the valve body is further provided with a fifth flow channel, and the fourth medium interface is connected to the first flow channel through the fifth flow channel.

[0008] In this implementation, the fifth flow channel is arranged parallel to the connecting flow channel, thereby improving the space utilization within the valve body and ensuring smooth gas flow.

[0009] In some implementations, the first flow channel and the second flow channel extend in the same direction.

[0010] In this implementation, the first and second flow channels can be arranged closely side by side within the valve body, which greatly reduces the extra space required for flow channels to avoid, turn, and cross each other compared to designs with different flow channel directions.

[0011] In some implementations, the connecting channel is orthogonally connected to the second channel; and / or, the connecting channel is orthogonally connected to the third channel.

[0012] In this implementation, an efficient flow channel network can be constructed within a limited valve body space. Orthogonal local areas can make full use of the three-dimensional space of the valve body, avoiding detours and intersections between flow channels, reducing unnecessary space occupation, and thus making the overall structure more compact.

[0013] In some implementations, the fluid control valve further includes a coil wound around the valve body, which, when energized, magnetizes the valve core to displace it to the first position or the second position.

[0014] In some implementations, the fluid control valve further includes a resilient reset element, which is connected between the valve core and the wall of the conduction chamber to ensure that the valve core is normally in the first position or the second position.

[0015] In some implementations, the valve body is further provided with a first pressure detection connection port, which is connected to the third flow channel.

[0016] In some implementations, the valve body is further provided with a second pressure detection connection port, which is connected to the fourth flow channel.

[0017] Secondly, this utility model provides a fluid distribution device, which is equipped with a fluid control valve as described above.

[0018] Thirdly, this utility model provides a pneumatic comfort system, including a first air source device, a second air source device, a first air bag group, a second air bag group, and the aforementioned fluid distribution device; the first air bag group includes at least one first air bag, and the second air bag group includes at least one second air bag; The first air source device is fluidly connected to the first medium interface, the second air source device is fluidly connected to the third medium interface, the first air bag assembly is fluidly connected to the fourth medium interface, and the second air bag component is fluidly connected to the second medium interface.

[0019] In summary, this utility model has at least the following advantages: (1) The fluid control valve provided by this utility model is provided with multiple flow channels and a valve core that can switch between flow channels to achieve directional fluid delivery control. Among them, the second and third flow channels extend in the same direction, avoiding high space occupancy caused by the flow channels crossing, turning or misaligning, thereby compressing the overall volume of the valve body. At the same time, the second and third flow channels with the same extension direction are directly connected through the connecting flow channel, reducing the local resistance loss caused by flow channel turning and crossing, and ensuring smooth gas flow in the connecting channel composed of the second flow channel, the connecting flow channel and the third flow channel.

[0020] (2) The fluid distribution device provided by this utility model can realize the switching of air paths by setting a fluid control valve in the fluid distribution device. By precisely displacing the valve core in the conduction chamber, the on / off state of different flow channels can be switched, so that the fluid is precisely distributed to each air-using device according to a preset ratio, ensuring that each air-using device can operate efficiently under the optimal fluid supply state. Moreover, based on the flow channel layout design in the fluid control valve, the volume of the fluid control valve is reduced, which in turn helps to reduce the volume of the overall fluid distribution device.

[0021] (3) The pneumatic comfort system provided by this utility model has an integrated function of air path switching, which can meet the air intake switching control requirements of multiple functional valve groups such as pneumatic massage, lumbar support, and side support set on the same fluid distribution device; especially for pneumatic comfort systems with air sources including air pumps and air tanks, it can realize the air path switching requirements when different functions such as pneumatic massage, lumbar support, and side support are performed. This system can allow air pumps and air tanks to supply air to pneumatic side support, thereby realizing rapid response of side support. When the pneumatic side support valve group needs to be quickly inflated, the gas from the air pump and air tank can be efficiently transmitted through this connection channel to ensure a large flow supply; while when the pneumatic massage valve group and lumbar support valve group need to be stably supplied with air, the continuous and uniform output of gas can be achieved through this flow channel layout. Attached Figure Description

[0022] Figure 1 A three-dimensional structural schematic diagram of the fluid control valve provided for an embodiment of this utility model; Figure 2 An exploded view of the fluid control valve provided in an embodiment of this utility model; Figure 3 A side view of the fluid control valve provided in an embodiment of this utility model; Figure 4 For along Figure 3 Schematic diagram of the cross-sectional structure along the AA direction; Figure 5 For along Figure 3 Schematic diagram of the cross-sectional structure in the middle BB direction.

[0023] Marked in the image: 10. Fluid control valve; 100. Valve body; 101. Conductor chamber; 102. First medium opening; 103. Second medium opening; 110. First medium interface; 120. Second medium interface; 130. Third medium interface; 140. Fourth medium interface; 150. First flow channel; 160. Second flow channel; 170. Third flow channel; 180. Fourth flow channel; 190a. Connecting flow channel; 190b. Fifth flow channel; 1100. First valve body; 1110. Insert groove; 1200. Second valve body; 1210. Insert connector; 1220. Sealing ring; 200. Valve core; 300, coil; 400. First pressure detection connection port; 500. Second pressure detection connection port. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] Firstly, please refer to the appendix. Figure 1 ~Appendix Figure 5 The fluid control valve 10 of this utility model includes a valve body 100 and a valve core 200.

[0027] In this regard, please combine Figure 1 and Figure 2 , Figure 1 and Figure 2 The diagram illustrates the structural relationship between the valve body 100 and the valve core 200 in an embodiment of this utility model. Please refer to... Figures 2 to 5 , Figures 2 to 5 The diagram illustrates the specific structure of the fluid control valve 10 in this embodiment of the present invention. Specifically, the valve body 100 is provided with a conduction chamber 101 and a first medium opening 102 and a second medium opening 103 communicating with the conduction chamber 101. The valve core 200 is disposed in the conduction chamber 101. The valve core 200 closes the first medium opening 102 and opens the second medium opening 103 in a first position, and opens the first medium opening 102 and closes the second medium opening 103 in a second position. The valve body 100 is also provided with a first medium interface 110, a second medium interface 120, a third medium interface 130, a fourth medium interface 140, a first flow channel 150, a second flow channel 160, a third flow channel 170, a fourth flow channel 180, and a connecting flow channel 190a; the first medium interface 110 is connected to the guiding chamber 101 through the first flow channel 150, the first end of the second flow channel 160 is connected to the second medium opening 103, the second end of the second flow channel 160 is connected to the first end of the connecting flow channel 190a, the second end of the connecting flow channel 190a is connected to the first end of the third flow channel 170, the second end of the third flow channel 170 is connected to the second medium interface 120, the third medium interface 130 is connected to the first medium opening 102 through the fourth flow channel 180, and the fourth medium interface 140 is connected to the first flow channel 150; the second flow channel 160 and the third flow channel 170 extend in the same direction.

[0028] It should be noted that the fluid control valve 10 has two venting states depending on the position of the valve core 200: a first venting state where the valve core 200 is in a first position, closing the first medium opening 102 and opening the second medium opening 103; and a second venting state where the valve core 200 is in a second position, opening the first medium opening 102 and closing the second medium opening 103. When the fluid control valve 10 is in the first venting state, the first medium interface 110, the fourth medium interface 140, and the second medium interface 120 are connected through the first flow channel 150, the second flow channel 160, and the third flow channel 170, while the first medium opening 102 is closed, thus cutting off the third medium interface 130. When the fluid control valve 10 is in the second venting state, the first medium interface 110, the fourth medium interface 140, and the third medium interface 130 are connected through the first flow channel 150, the conduction chamber 101, and the fourth flow channel 180, while the second medium opening 103 is closed, thus cutting off the second medium interface 120.

[0029] The connection between the first medium interface 110 and the fourth medium interface 140 is not affected by the movement of the valve core 200, and the first medium interface 110 and the fourth medium interface 140 are in a normal conducting state.

[0030] It is understandable that, since the second flow channel 160 and the third flow channel 170 extend in the same direction, a compact cluster of flow channels is formed inside the valve body 100. Preferably, the second flow channel 160 and the third flow channel 170 are arranged parallel to each other. This parallel arrangement reduces the waste of gaps between the flow channels and avoids the redundant space added to avoid other flow channels when they are not arranged parallel, thereby significantly compressing the overall volume of the valve body 100. In this way, the connecting flow channel 190a used to connect the second flow channel 160 and the third flow channel 170 can ensure an effective gas flow size, thereby ensuring the gas flow rate of the fluid control valve 10.

[0031] In the aforementioned fluid control valve 10, the second flow channel 160 and the third flow channel 170 extend in the same direction, avoiding high space occupancy caused by the flow channels crossing, turning, or misaligning, thereby compressing the overall volume of the valve body 100. Simultaneously, the second flow channel 160 and the third flow channel 170 are directly connected via a connecting flow channel 190a, reducing local resistance losses caused by flow channel turns and crossings, and ensuring smooth gas flow in the connecting channel formed by the second flow channel 160, the connecting flow channel 190a, and the third flow channel 170.

[0032] In some preferred embodiments, please refer to Figure 4 , Figure 4The diagram illustrates the structural relationship between the fifth flow channel 190b and the fourth medium interface 140 in this embodiment of the invention. Specifically, the valve body 100 is further provided with a fifth flow channel 190b, and the fourth medium interface 140 is connected to the first flow channel 150 through the fifth flow channel 190b. The fifth flow channel 190b is formed in the valve body 100, with one end extending to the outer wall of the valve body 100 to form the fourth medium interface 140, and the other end extending to be in fluid communication with the conduction chamber 101. When a fluid such as gas is introduced into the first medium interface 110, the gas sequentially passes through the first flow channel 150 and the fifth flow channel 190b into the fourth medium interface 140. At the same time, the gas in the first flow channel 150 also enters the conduction chamber 101 through the fifth flow channel 190b, and is directionally transported according to the position switching of the valve core 200.

[0033] In some preferred embodiments, the first flow channel 150 and the second flow channel 160 extend in the same direction, specifically, they can be arranged in parallel. This allows the first flow channel 150 and the second flow channel 160 to be arranged closely side by side within the valve body 100, which greatly reduces the additional space required for avoidance, turning, and intersection between the flow channels compared to designs with different flow channel directions.

[0034] Furthermore, the first flow channel 150, the second flow channel 160, and the third flow channel 170 are arranged in parallel to each other, which can effectively improve the integration of the flow channels and make the overall volume of the valve body 100 smaller, thereby meeting the needs of pneumatic comfort systems for miniaturization and multi-functionality of valve modules.

[0035] In some preferred embodiments, the connecting flow channel 190a is orthogonally connected to the second flow channel 160; and / or, the connecting flow channel 190a is orthogonally connected to the third flow channel 170. This allows for the construction of an efficient flow channel network within the limited space of the valve body 100. The orthogonal local connections fully utilize the three-dimensional space of the valve body 100, avoiding detours and intersections between flow channels, reducing unnecessary space occupation, and thus making the overall structure more compact. Preferably, the connecting flow channel 190a is perpendicularly connected to the second flow channel 160; and / or, the connecting flow channel 190a is perpendicularly connected to the third flow channel 170.

[0036] The position switching of the valve core 200 within the conduction chamber 101 can be achieved by an actuator, which can be selected from, but is not limited to, a coil. The valve core 200 can be made of a ferromagnetic material, such as an iron core or a permanent magnet. When the coil is energized, it can be magnetically actuated to move the valve core 200 within the conduction chamber 101, switching its position.

[0037] In some preferred embodiments, please refer to Figure 1 and Figure 2 , Figure 1 and Figure 2The diagram illustrates the structural relationship between the coil 300 and the valve body 100 in this embodiment of the present invention. Specifically, the fluid control valve 10 further includes a coil 300, which is wound around the valve body 100. When energized, the coil 300 magnetically excites the valve core 200 to displace it to a first position or a second position. When the coil 300 is energized, it drives the valve core 200 to precisely displace to the first or second position within the conduction chamber 101. For example, the valve core 200 can be switched between the first and second positions depending on the direction of the current flowing through the coil 300. Specifically, when a positive current flows through the coil 300, the valve core 200 is actuated to switch to the first position, while when a reverse current flows through the coil 300, the valve core 200 is actuated to switch to the second position. When the valve core 200 is in the first position, it closes the first medium opening 102 and opens the second medium opening 103. When the valve core 200 is in the second position, it opens the first medium opening 102 and closes the second medium opening 103. This allows the fluid control valve 10 to precisely regulate the on / off state of different flow channels, meeting different fluid control requirements.

[0038] In some preferred embodiments, the fluid control valve 10 further includes an elastic reset member, which is operatively connected between the valve core 200 and the wall of the conduction chamber 101 to ensure that the valve core 200 is normally in a first position or a second position, for example, to ensure that the valve core 200 is normally in the first position. The elastic reset member is connected between the valve core 200 and the wall of the conduction chamber 101, such that its two ends abut against the inner walls of the valve core 200 and the conduction chamber 101 respectively. The elastic reset member is in a compressed state to continuously apply a stable force to the valve core 200, ensuring that the valve core 200 reliably remains in the first or second position when the coil 300 is not energized. Energizing the coil 300 causes the valve body 100 to move, thereby compressing the elastic reset member. When the energization of the coil 300 is cut off, the elastic reset member can extend and reset, thereby pushing the valve core 200 to reset, so that the fluid control valve 10 maintains its initial stable state. Preferably, the elastic reset member can be a spring.

[0039] In some preferred embodiments, please refer to Figure 2 and Figure 4 , Figure 1 and Figure 2The diagram illustrates the structural relationship between the first pressure detection port 400 and the third flow channel 170 in this embodiment of the invention. Specifically, the valve body 100 is further provided with a first pressure detection port 400, which communicates with the third flow channel 170. The first pressure detection port 400 is connected to the third flow channel 170 and can be connected to a pressure detection chamber equipped with a pressure detection device. This allows the pressure detection device in the chamber to monitor the pressure of the fluid within the gas flow channel formed by the first flow channel 150, the second flow channel 160, and the third flow channel 170 in real time and with high precision. Specifically, it can accurately monitor the fluid pressure of fluid devices connected to the second medium interface 120 connected to the third flow channel 170, such as gas-using devices, including air bags, which are fluidly connected to the second medium interface 120. The detected air pressure data is transmitted to an external control device to control the operating state of the fluid control valve 10.

[0040] In some preferred embodiments, please refer to Figure 2 and Figure 4 , Figure 1 and Figure 2 The diagram illustrates the structural relationship between the second pressure detection port 500 and the fourth flow channel 180 in this embodiment of the invention. Specifically, the valve body 100 is further provided with a second pressure detection port 500, which is connected to the fourth flow channel 180. The second pressure detection port 500 is connected to the fourth flow channel 180 and can be connected to another pressure detection chamber equipped with another pressure detection device. This allows the pressure detection device in the chamber to monitor the pressure of the fluid within the gas flow channel formed by the first flow channel 150, the fifth flow channel 190b, and the fourth flow channel 180 in real time and accurately. Specifically, it can accurately monitor the fluid pressure of fluid devices connected to the third medium interface 130 connected to the fourth flow channel 180, such as gas storage devices, including gas tanks, which are fluidly connected to the third medium interface 130. The detected gas pressure data is transmitted to an external control device to control the operating state of the fluid control valve 10.

[0041] In some preferred embodiments, please refer to Figure 2 , Figure 2The diagram illustrates the structural relationship between the first valve body 1100 and the second valve body 1200 in this embodiment of the present invention. Specifically, the valve body 100 includes a first valve body 1100 and a second valve body 1200 that are sealed together. A first flow channel 150, a fifth flow channel 190b, a connecting flow channel 190a, and a third flow channel 170 are disposed within the first valve body 1100, and a second flow channel 160, a guiding chamber 101, and a fourth flow channel 180 are disposed within the second valve body 1200. The first valve body 1100 has a plug groove 1110, which connects to the first end of the flow channel 190a; the second valve body 1200 has a plug connector 1210 that is plugged into the plug groove 1110. The second end opening of the second flow channel 160 extends to the end of the plug connector 1210. A sealing ring 1220 is fitted around the outer periphery of the plug connector 1210. The plug connector 1210 and the plug groove 1110 are sealed together by the sealing ring 1220, thereby achieving a sealed connection between the first valve body 1100 and the second valve body 1200. The second valve body 1200 has a gap channel for connecting the fifth flow channel 190b and the conduction chamber 101. One end of the gap channel extends to the end of the second valve body 1200 to form an opening, while the other end extends to the conduction chamber 101. When the first valve body 1100 and the second valve body 1200 are assembled in a sealed plug-in manner, the end opening of the gap channel and the other extension end of the fifth flow channel 190b relative to the fourth medium interface 140 are connected in the space closed by the sealing ring 1220, thereby achieving sealed connection.

[0042] Secondly, based on the above embodiments, this utility model also provides a fluid distribution device.

[0043] The fluid distribution device of this utility model embodiment is provided with a fluid control valve 10 as described above.

[0044] In this embodiment, the fluid distribution device has a built-in fluid control valve 10, which can precisely regulate the flow direction of the fluid. Specifically, the fluid control valve 10 can be installed on the fluid distribution device as a main air inlet valve. The fluid distribution device can also include multiple air valves for controlling the inflation and deflation of the massage airbag, the side support airbag, and the lumbar support airbag. The fluid control valve 10 includes one or more of the multiple media interfaces, such as a first media interface 110, a second media interface 120, a third media interface 130, and a fourth media interface 140, which can be used as air source interfaces to connect to the air supply device and the air storage device. The remaining media interfaces can be selectively connected to the multiple air valves for controlling the inflation and deflation of the massage airbag, the side support airbag, and the lumbar support airbag as needed.

[0045] In some embodiments, the first medium interface 110 may be fluidly connected to an air supply device, the second medium interface 120 may be fluidly connected to multiple air valves controlling the inflation and deflation of the massage air bag and the lumbar support air bag, the third medium interface 130 may be fluidly connected to an air storage device, and the fourth medium interface 140 may be fluidly connected to a device controlling the inflation and deflation of the active side wing support air bag. The air supply device may be, but is not limited to, an air pump or an air compressor; the air valves may be solenoid valves; and the air storage device may include an air tank.

[0046] The aforementioned fluid distribution device, by incorporating a fluid control valve 10, enables the switching of air paths. Through the precise displacement of the valve core 200 within the conduction chamber 101, the on / off state of different flow channels can be switched, allowing fluid to be precisely distributed to each air-consuming device according to a preset ratio. This ensures that each air-consuming device operates efficiently under optimal fluid supply conditions. Furthermore, the flow channel layout design within the fluid control valve 10 reduces its size, thereby contributing to a reduction in the overall size of the fluid distribution device.

[0047] Thirdly, based on the above embodiments, this utility model also provides a pneumatic comfort system.

[0048] The system includes a first air source device, a second air source device, a first air bag assembly, a second air bag assembly, and the aforementioned fluid distribution device. The first air bag assembly includes at least one first air bag, and the second air bag assembly includes at least one second air bag. The first air source device is fluidly connected to a first media interface 110, the second air source device is fluidly connected to a third media interface 130, the first air bag assembly is fluidly connected to a fourth media interface 140, and the second air bag assembly is fluidly connected to a second media interface 120.

[0049] It should be noted that the first air source device includes, but is not limited to, an air pump, an air compressor, an air storage container, or a pump-valve integrated device. In this embodiment, the first air source device is preferably an air pump. The second air source device includes, but is not limited to, an air pump, an air compressor, an air storage container, or a pump-valve integrated device. In this embodiment, the second air source device is preferably an air storage container.

[0050] The first airbag includes, but is not limited to, massage airbags, lumbar support airbags, and side support airbags. The specific type can be determined based on the actual location of the airbag and its function in that location. In this embodiment, the first airbag is preferably a massage airbag and a lumbar support airbag. The second airbag includes, but is not limited to, massage airbags, lumbar support airbags, and side support airbags. The specific type can be determined based on the actual location of the airbag and its function in that location. In this embodiment, the second airbag group is preferably a side support airbag.

[0051] Furthermore, control valves, such as shut-off valves, can be further installed between the second air source device and the first medium interface 110, and between the first air source device and the third medium interface 130, to control the on / off state of the air source. Control valves, such as two-position three-way solenoid valves corresponding to the first air bag as a massage air bag, three-position three-way solenoid valves corresponding to the first air bag as a lumbar support air bag, and three-position three-way solenoid valves corresponding to the second air bag as a side wing support air bag, can be further installed between the first air bag and the second medium interface 120, and between the second air bag and the fourth medium interface 140, to control the inflation and deflation of the air bags.

[0052] To facilitate understanding of the working logic of the fluid control valve 10 in the pneumatic comfort system, the following example is provided: the first air source device connected to the first medium interface 110 is designated as an air pump; the second air source device connected to the third medium interface 130 is designated as an air tank; the first air bag connected to the second medium interface 120 is designated as a massage air bag and a lumbar support air bag; and the second air bag connected to the fourth medium interface 140 is designated as a side support air bag. During operation, the following air path switching can occur: a first ventilation state and a second ventilation state. First ventilation state: Valve core 200 blocks the first medium opening 102, the air pump is connected to the first medium interface 110, the air pump supplies air, the gas enters from the first medium interface 110 and flows sequentially through the first flow channel 150, the fifth flow channel 190b, and the fourth medium interface 140 into the side support air bag connected to the fourth medium interface 140; and the gas also flows sequentially through the first flow channel 150, the fifth flow channel 190b, the second medium opening 103, the second flow channel 160, the connecting flow channel 190a, the third flow channel 170, and the second medium interface 120 into the massage air bag and waist support air bag connected to the second medium interface 120, realizing pneumatic massage, pneumatic waist support, and pneumatic side support.

[0053] Second ventilation state: Valve core 200 blocks the second medium opening 103, air pump is connected to the first medium interface 110, air pump supplies air, gas enters from the first medium interface 110 and flows sequentially through the first flow channel 150, the fifth flow channel 190b, and the fourth medium interface 140 into the side wing support air bag connected to the fourth medium interface 140; and when supplying air to the gas storage tank, the gas also flows sequentially through the first flow channel 150, the fifth flow channel 190b, the first medium opening 102, the fourth flow channel 180, and the third medium interface 130 into the gas storage tank connected to the third medium interface 130; or, the gas storage tank can simultaneously supply air to the side wing support air bag quickly, the gas in the gas storage tank flows sequentially through the third medium interface 130, the fourth flow channel 180, the first medium opening 102, the gap between the valve core 200 and the conduction chamber, the fifth flow channel 190b, and the fourth medium interface 140 into the side wing support air bag connected to the fourth medium interface 140, improving the side wing support response efficiency.

[0054] Understandably, in the second ventilation state, when the side wing support needs to respond quickly, the air tank can play the same air supply role as the air pump. For example, a valve can be installed at the connection between the third medium interface 130 and the air tank to control the opening and closing of the third medium interface 130 and the air tank. When the side wing support air bag needs to be inflated quickly, the valve opens and the air pump starts. Both the air pump and the air tank act as air supply sources to supply air to the side wing support air bag at the same time, which greatly improves the inflation and deployment speed of the side wing support air bag.

[0055] The aforementioned pneumatic comfort system integrates air path switching capabilities, enabling it to meet the air intake switching control requirements of multiple functional valve groups, such as pneumatic massage, lumbar support, and side support, installed on the same fluid distribution device. Especially for pneumatic comfort systems where the air source includes an air pump and an air tank, it can achieve air path switching for different functions such as pneumatic massage, lumbar support, and side support. This system allows the air pump and air tank to supply air to the pneumatic side support, thus enabling rapid response in the side support. When the pneumatic side support valve group needs rapid inflation, the gas from the air pump and air tank can be efficiently transmitted through this connection channel, ensuring a large flow rate. Conversely, when the pneumatic massage valve group and lumbar support valve group require stable air supply, this flow channel layout enables continuous and uniform gas output.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0058] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0059] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0060] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A fluid control valve, characterized in that, The valve includes a valve body (100) and a valve core (200); the valve body (100) is provided with a conduction chamber (101) and a first medium opening (102) and a second medium opening (103) communicating with the conduction chamber (101); the valve core (200) is disposed in the conduction chamber (101); the valve core (200) closes the first medium opening (102) and opens the second medium opening (103) in a first position; the valve core (200) opens the first medium opening (102) and closes the second medium opening (103) in a second position. The valve body (100) is further provided with a first medium interface (110), a second medium interface (120), a third medium interface (130), a fourth medium interface (140), a first flow channel (150), a second flow channel (160), a third flow channel (170), a fourth flow channel (180), and a connecting flow channel (190a); the first medium interface (110) is connected to the conducting chamber (101) through the first flow channel (150), the first end of the second flow channel (160) is connected to the second medium opening (103), and the second flow channel (160) is connected to the connecting chamber (190a). The second end of the 0) is connected to the first end of the connecting channel (190a), the second end of the connecting channel (190a) is connected to the first end of the third channel (170), the second end of the third channel (170) is connected to the second medium interface (120), the third medium interface (130) is connected to the first medium opening (102) through the fourth channel (180), and the fourth medium interface (140) is connected to the first channel (150); the second channel (160) and the third channel (170) extend in the same direction.

2. The fluid control valve according to claim 1, characterized in that, The valve body (100) is also provided with a fifth flow channel (190b), and the fourth medium interface (140) is connected to the first flow channel (150) through the fifth flow channel (190b).

3. The fluid control valve according to claim 1, characterized in that, The first flow channel (150) extends in the same direction as the second flow channel (160).

4. The fluid control valve according to claim 1, characterized in that, The connecting channel (190a) is orthogonally connected to the second channel (160); and / or, the connecting channel (190a) is orthogonally connected to the third channel (170).

5. The fluid control valve according to claim 1, characterized in that, It also includes a coil (300) wound around the valve body (100). When the coil (300) is energized, it excites the valve core (200) to move to the first position or the second position.

6. The fluid control valve according to claim 5, characterized in that, It also includes an elastic reset member, which is connected between the valve core (200) and the wall of the conduction chamber (101) to cause the valve core (200) to be normally in the first position or the second position.

7. The fluid control valve according to claim 1, characterized in that, The valve body (100) is also provided with a first pressure detection connection port (400), which is connected to the third flow channel (170).

8. The fluid control valve according to claim 1, characterized in that, The valve body (100) is also provided with a second pressure detection port (500), which is connected to the fourth flow channel (180).

9. A fluid distribution device, characterized in that, The fluid control valve (10) as described in any one of claims 1-8 is provided.

10. A pneumatic comfort system, characterized in that, It includes a first air source device, a second air source device, a first air bag group, a second air bag group, and the fluid distribution device as described in claim 9; the first air bag group includes at least one first air bag, and the second air bag group includes at least one second air bag; The first air source device is fluidly connected to the first medium interface (110), the second air source device is fluidly connected to the third medium interface (130), the first air bag assembly is fluidly connected to the fourth medium interface (140), and the second air bag assembly is fluidly connected to the second medium interface (120).

Images