A pneumatic-hydraulic electric valve and a smart sleep system

Abstract

This invention discloses a gas-hydraulic electric valve and a smart sleep system. The gas-hydraulic electric valve includes a valve body and a reduction gearbox. The valve body has a main air intake channel and at least one air passage, which are connected throughout. Each air passage includes an airbag connection port, an airbag deflation port, a piston, and an optocoupler module board. The piston is connected to the reduction gearbox. The piston has at least three sets of sealing guide rings. Driven by the reduction gearbox, the piston approaches the airbag and, under the control of the optocoupler module board, sequentially provides a deflation position, a pressure holding position, and an inflation position. The airbag connection port and the airbag deflation port are connected in the deflation position. The main air intake channel, the airbag connection port, and the airbag deflation port are isolated from each other in the pressure holding position. The airbag connection port and the main air intake channel are connected in the inflation position. This invention enables rapid inflation and deflation of airbag mattresses, significantly reducing drive noise and thus improving sleep quality.

Description

Technical Field

[0001] This invention relates to an electric valve and a sleep system, and more particularly to a pneumatic-hydraulic electric valve and a smart sleep system. Background Technology

[0002] Sleep, as an essential process for life, is a crucial stage for the body's recovery, integration, and memory consolidation. Good sleep helps restore physical strength, combat fatigue, relax the mind, and reduce stress. To achieve a healthy and comfortable sleep experience, people invented spring mattresses with several internal spring units. Spring mattresses have advantages such as elasticity, strong support, and durability. However, spring mattresses also have disadvantages such as complex manufacturing and installation of spring units, high cost, and the inability to adjust the firmness.

[0003] Many brands are now promoting airbag mattresses, where the airbags are inflated and deflated by solenoid valves. The advantage of airbag mattresses is that the firmness can be flexibly adjusted, but the disadvantages are that the solenoid valves used in general airbag mattresses have too small an air flow, which greatly affects the experience. In addition, the clicking sound produced when the valves are engaged can generate noise, thus affecting sleep.

[0004] The flow cross-sectional area of ​​a solenoid valve is approximately 7 square millimeters. Such a small flow rate is generally used in air-cushioned pillows or car seats. Directly using it in an air-cushioned mattress would obviously result in a small flow rate and slow speed, greatly affecting the user experience. Furthermore, the high temperature generated by the solenoid valve's operation can accelerate the aging of electronic components. As the flow cross-sectional area of ​​the solenoid valve increases, noise and heat generation will increase significantly.

[0005] In addition, airbag mattresses often include multiple airbags, and controlling one airbag requires two solenoid valves, one for inflation and the other for deflation, which significantly increases production costs.

[0006] Electric valves can meet the requirements of high-flow environments and only one valve is needed to complete bidirectional regulation and control. However, existing industrial-grade electric valves are very bulky and have a relatively complex structure. For example, common electric gate valves and electric ball valves often weigh hundreds of kilograms. Therefore, it is necessary to provide a new lightweight pneumatic-hydraulic electric valve suitable for airbag mattresses. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a gas-liquid electric valve that uses gas or liquid as a medium to greatly reduce driving noise while ensuring that the flow rate is not limited, so as to achieve silent and rapid inflation and deflation of airbag mattresses, thereby improving sleep quality.

[0008] To solve the above-mentioned technical problems, the present invention provides a pneumatic-hydraulic electric valve, including a valve body and a reduction gearbox. The valve body is provided with a main air intake channel and at least one air passage, and the main air intake channel and each air passage are connected through each other. Each air passage is provided with an airbag connection port, an airbag deflation port, a piston, and an optocoupler module board. The piston is connected to the reduction gearbox. The piston is provided with at least three sets of sealing guide rings. Driven by the reduction gearbox, the piston approaches the airbag and, under the control of the optocoupler module board, sequentially provides a deflation position, a pressure holding position, and an inflation position. The airbag connection port and the airbag deflation port are connected in the deflation position. The main air intake channel, the airbag connection port, and the airbag deflation port are isolated from each other in the pressure holding position. The airbag connection port and the main air intake channel are connected in the inflation position.

[0009] Furthermore, the piston includes a mounting base and a piston push rod, and the piston push rod is sequentially provided with a coaxial first sealing guide ring, a second sealing guide ring and a third sealing guide ring;

[0010] Each airway passage is equipped with a scale plate, which has three positioning slots: a deflation mark slot, a pressure holding mark slot, and an inflation mark slot. The optocoupler module moves with the piston, and as it approaches the airbag, it passes through the three positioning slots on the scale plate in sequence.

[0011] When the piston drives the optocoupler module board to the deflation mark slot, the main air intake channel is located between the first sealing guide ring and the second sealing guide ring, and the airbag connection port and the airbag deflation port are directly connected to deflate the airbag.

[0012] When the piston drives the optocoupler module board to the pressure holding mark slot, the main air intake channel is located between the second sealing guide ring and the third sealing guide ring, and the airbag connection port is located between the first sealing guide ring and the second sealing guide ring, so that the main air intake channel, the airbag connection port and the airbag deflation port are isolated from each other to achieve pressure holding of the airbag.

[0013] When the piston drives the optocoupler module board to the inflation mark slot, the airbag connection port and the airbag deflation port are both located between the second sealing guide ring and the third sealing guide ring, thereby connecting to inflate the airbag.

[0014] Furthermore, the air passage on the valve body includes a first hollow section and a second hollow section, the first hollow section being provided with a sliding groove; each set of sealing guide rings is equipped with a sealing ring, the sealing ring and the second hollow section on the valve body being an interference fit; the piston push rod reciprocates in the second hollow section, and the mounting seat reciprocates in the first hollow section; the mounting seat is a square body, the first hollow section is a square through hole, the piston push rod is a cylinder, and the second hollow section is a circular through hole.

[0015] Furthermore, the optocoupler module board is a through-beam slot-type optocoupler module board, composed of an infrared emitting tube and a phototransistor receiving tube, which determines the current position by optical path obstruction; the optocoupler module board has an upward U-shaped opening for the ruler plate to pass through, one end of the U-shaped opening is the transmitting end and the other end is the receiving end; when the transmitting and receiving ends on the U-shaped opening are aligned with the positioning slot on the ruler plate, a positioning signal is output, and the optocoupler module board is connected to the limit switch circuit board to determine the specific position information.

[0016] Furthermore, the limit switch circuit board is fixed to the valve body by a ruler plate, and the valve body is provided with an air passage cover, which is located above the main air intake channel.

[0017] Furthermore, the gearbox includes multiple drive units arranged side by side, each drive unit being connected to a piston in an air passage; the drive unit includes a first housing, a second housing, a motor, a reduction gear, a rotating shaft, a pull rod, and a limit switch; the reduction gear is fixed on the rotating shaft; the pull rod is provided with a rack that meshes with the reduction gear; the pull rod is connected to the piston; and the optocoupler module board is fixedly mounted on the pull rod.

[0018] Furthermore, the multiple drive units arranged side by side are isolated, installed and fixed by U-shaped connectors. Each drive unit is clamped in the U-shaped connector, and both sides of the U-shaped connector are fixed to the valve body by mounting seats. The bottom plate of the U-shaped connector is provided with an opening groove for the pull rod to pass through.

[0019] To address the aforementioned technical problems, the present invention also provides a smart sleep system, comprising a host controller, an air pump, and an airbag mattress. The airbag mattress includes multiple independently arranged airbags, and the airbags and the air pump are connected via the aforementioned pneumatic-hydraulic electric valve. The host controller is connected to a control terminal to receive inflation control signals and control the pneumatic-hydraulic electric valve to inflate and deflate the airbags.

[0020] Furthermore, the airbag mattress includes 12 independently arranged airbags, with each group of 3 airbags connected to a pneumatic-hydraulic electric valve.

[0021] Furthermore, the control terminal is a remote control, an APP, or a WeChat mini-program.

[0022] Compared with existing technologies, the present invention has the following advantages: The pneumatic-hydraulic electric valve provided by the present invention can greatly reduce driving noise to achieve a silent adjustment effect while ensuring unrestricted flow, enabling rapid and stable inflation and deflation of air-cushion mattresses, thereby improving sleep quality. Specific advantages are as follows:

[0023] 1. It adopts an airbag mattress, which includes multiple independently arranged airbags that can be adjusted individually to better conform to the skeletal shape of the human body's curves.

[0024] 2. The gas-liquid electric valve of the present invention can quickly adjust the inflation and deflation without generating noise, achieving a silent adjustment effect; the noise of the motor rotation will not affect sleep.

[0025] 3. The flow cross-section of the gas-liquid electric valve of the present invention is not limited, so one gas-liquid electric valve can simultaneously and quickly control the inflation and deflation of multiple airbags;

[0026] 4. The multiple pneumatic-hydraulic electric valves of the present invention can be easily integrated and expanded, ensuring a simple and compact overall structure;

[0027] 5. The pneumatic-hydraulic electric valve of this invention, in conjunction with a pressure sensor, can quickly and accurately control the pressure of the airbag mattress. Blood flow is relatively slow during sleep, and by quickly and accurately controlling the pressure, the pressure on blood vessels and muscles can be reduced, ensuring smooth blood circulation, reducing tossing and turning, and thus improving sleep quality. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the gas-liquid electric valve structure of the present invention;

[0029] Figure 2 This is an exploded view of the gas-liquid electric valve of the present invention;

[0030] Figure 3a This is a schematic diagram of the front structure of the scale plate of the gas-liquid electric valve of the present invention.

[0031] Figure 3b This is a schematic diagram of the reverse side structure of the scale plate of the gas-liquid electric valve of the present invention;

[0032] Figure 4 This is a schematic diagram of the valve body structure of the gas-liquid electric valve of the present invention;

[0033] Figure 5 This is a schematic diagram of the piston structure of the gas-liquid electric valve of the present invention;

[0034] Figure 6 This is a schematic diagram of the optocoupler module board structure of the gas-liquid electric valve of the present invention;

[0035] Figure 7 This is a schematic diagram of the air passage cover structure of the gas-liquid electric valve of the present invention;

[0036] Figure 8 This is a schematic diagram of the gearbox structure of the pneumatic-hydraulic electric valve of the present invention;

[0037] Figure 9 This is an exploded view of the gearbox of the pneumatic-hydraulic electric valve of the present invention;

[0038] Figure 10 This is a schematic diagram of the U-shaped connector structure of the gas-liquid electric valve of the present invention;

[0039] Figure 11 This is a schematic diagram of the smart sleep system framework of the present invention;

[0040] Figure 12a This is a cross-sectional view of the gas-liquid electric valve of the present invention when it is inflated in the first moving position.

[0041] Figure 12b This is a cross-sectional view of the gas-liquid electric valve of the present invention when it is performing a pressure-holding action in the second moving position.

[0042] Figure 12c This is a cross-sectional view of the gas-liquid electric valve of the present invention when it is performing the venting action in the third movement position.

[0043] The diagram is marked as follows:

[0044] 1. Main controller; 2. Air pump; 3. Pneumatic-hydraulic electric valve; 4. Airbag; 5. Control terminal;

[0045] 301. Valve body; 3011. First hollow section; 3012. Second hollow section; 3013. Sliding groove;

[0046] 302. Airway cover; 303. Cross-head self-tapping screw; 305. Sealing ring; 308. Screw; 311. Cross-head pan head self-tapping screw; 312. Limit switch circuit board; 313. Main air intake channel; 314. Airbag connection port; 315. Airbag deflation port;

[0047] 304, Piston; 3041, Mounting base; 3042, Piston push rod; 3043, First sealing guide ring; 3044, Second sealing guide ring; 3045, Third sealing guide ring;

[0048] 306, U-shaped connector; 3061, slotted opening; 3062, mounting base;

[0049] 307. Gearbox; 3071. First housing; 3072. Second housing; 3073. Motor; 3074. Reduction gear; 3075. Shaft; 3076. Pull rod; 3077. Limit switch; 3078. Cross-shaped countersunk wood screw;

[0050] 309. Optocoupler module board; 3091. Transmitter; 3092. Receiver;

[0051] 310. Ruler plate; 3101. Deflator slot; 3102. Pressure holding slot; 3103. Inflation slot. Detailed Implementation

[0052] The present invention will now be further described with reference to the accompanying drawings and embodiments.

[0053] Figure 1 This is a schematic diagram of the gas-liquid electric valve structure of the present invention; Figure 2 Figure 1 is an exploded view of the gas-liquid electric valve of the present invention; Figure 2 is a schematic diagram of the valve body structure of the gas-liquid electric valve of the present invention.

[0054] Please see Figure 1 , Figure 2 As shown in Figure 3, the pneumatic-hydraulic electric valve provided by the present invention includes a valve body 301 and a reduction gearbox 307. The valve body 301 is provided with a main air intake channel 313 and at least one air passage, and the main air intake channel 313 and each air passage are connected through each other. Each air passage is provided with an airbag connection port 314, an airbag deflation port 315, a piston 304 and an optocoupler module board 309. The piston 304 is connected to the reduction gearbox 307. The piston 304 is provided with at least one... Three sets of sealing guide rings, the piston 304 is driven by the reduction gearbox 307 to approach the airbag and is sequentially provided with the deflation position, the pressure holding position and the inflation position under the control of the optocoupler module board 309. The airbag connection port 314 and the airbag deflation port 315 are connected in the deflation position. The main air intake channel 313, the airbag connection port 314 and the airbag deflation port 315 are isolated from each other in the pressure holding position. The airbag connection port 314 and the main air intake channel 313 are connected in the inflation position.

[0055] Please continue reading Figure 2 The pneumatic-hydraulic electric valve provided by this invention has a scale plate 310 corresponding to each air passage. Three positioning grooves are formed on the scale plate 310. The optocoupler module plate 309 moves together with the piston 304. As the optocoupler module plate 309 approaches the airbag, it sequentially passes through the three positioning grooves on the scale plate 310, namely, the deflation mark groove 3101, the pressure holding mark groove 3102, and the inflation mark groove 3103. Figure 3a and Figure 3b As shown. Preferably, the positioning slots of the multiple air passages are arranged side by side on the same scale plate 310 to ensure that the overall structure is simple and compact, and can be easily integrated and expanded.

[0056] Please continue reading Figure 4Preferably, the air passage on the valve body 301 includes a first hollow section 3011 and a second hollow section 3012, and the first hollow section 3011 is provided with a sliding groove 3013. Preferably, the mounting base 3041 is a square body, and the piston push rod 3042 is a cylinder; optionally, the first hollow section 3011 is a square through hole, and the second hollow section 3012 is a circular through hole, the side length of the square through hole and the diameter of the circular through hole are the same; the specific flow cross-sectional size is not limited and can be selected according to actual needs. Preferably, multiple air passages are arranged side by side on the same valve body 301 to ensure that the overall structure is simple and compact, and can be easily integrated and expanded.

[0057] Please continue reading Figure 5 and combined Figure 4 The piston 304 includes a mounting base 3041 and a piston push rod 3042. The piston push rod 3042 is provided with three sets of coaxial sealing guide rings: a first sealing guide ring 3043, a second sealing guide ring 3044, and a third sealing guide ring 3045. These three sets of sealing guide rings are concentric rings, and each set is provided with a sealing ring 305. The sealing ring 305 and the second hollow section 3012 on the valve body 301 are interference-fitted. The piston push rod 3042 reciprocates in the second hollow section 3012, and the mounting base 3041 reciprocates in the first hollow section 3011. The mounting base 3041 is a square, the first hollow section 3011 is a square through hole, the piston push rod 3042 is a cylinder, and the second hollow section 3012 is a circular through hole. The piston 304 is square at one end and fits with the square through hole on the valve body to prevent the cylindrical piston rod from rotating, and the square mounting seat can abut against the round through hole for limiting the movement.

[0058] Please continue reading Figure 6 and combined Figure 2 The optocoupler module board 309 is a through-beam slot-type optocoupler module board, composed of an infrared emitting tube and a phototransistor receiving tube, which determines the current position by the light path obstruction; the optocoupler module board 309 is fixed on the mounting base pull rod 3076 and has an upward U-shaped opening for the ruler plate 310 to pass through. One end of the U-shaped opening is the transmitting end 3091, and the other end is the receiving end 3092; when the transmitting and receiving ends on the U-shaped opening are aligned with the positioning slot on the ruler plate 310, a positioning signal is output. The optocoupler module board 309 is connected to the limit switch circuit board 312 to determine the specific position information.

[0059] The pneumatic-hydraulic electric valve provided by this invention includes a limit switch circuit board 312 fixed to the valve body 301 via a scale plate 310. The limit switch circuit board 312 and the scale plate 310 are fixed together by Phillips head self-tapping screws 303. The scale plate 310 and the valve body 301 are fixed together by Phillips head pan head self-tapping screws 311. The valve body 301 is provided with an air passage cover 302, which is located above the main air inlet channel 313. The air passage cover 302 is fixed to the valve body 301 by Phillips head self-tapping screws 303. The structure of the air passage cover 302 is as follows: Figure 7 As shown.

[0060] Please continue reading Figure 8 and Figure 9 The reduction gearbox 307 of the pneumatic-hydraulic electric valve of the present invention includes multiple drive units arranged side by side, each drive unit being connected to a piston 304 of a pneumatic passage; the drive unit includes a first housing 3071, a second housing 3072, a motor 3073, a reduction gear 3074, a rotating shaft 3075, a pull rod 3076, and a limit switch 3077. The reduction gear 3074 is fixed on the rotating shaft 3075, and the pull rod 3076 is provided with a rack that meshes with the reduction gear 3074. The pull rod 3076 is connected to the piston 304. In the gearbox 307, the motor 3073 is reduced in speed by a three-stage reduction gear 3074, which greatly reduces noise. Multiple drive units arranged side by side are isolated and fixed by U-shaped connectors 306. Each drive unit is clamped in the U-shaped connector 306 by four cross-slot countersunk wood screws 3078. The two sides of the U-shaped connector 306 are fixed to the valve body 301 by mounting bases 3062 and short screws. The bottom plate of the U-shaped connector 306 has an opening slot 3061 for the pull rod 3076 to pass through.

[0061] For each drive unit, motor 3073 drives reduction gear 3074, which in turn drives pull rod 3076 forward via rack. Pull rod 3076 drives optocoupler module board 309 and piston push rod 3042 forward together. When the optocoupler detects a signal, it determines the corresponding position and stops the motor. Specifically, when piston 304 drives optocoupler module board 309 to the deflation mark slot 3101, the main air intake channel 313 is located between the first sealing guide ring 3043 and the second sealing guide ring 3044. The airbag connection port 314 and airbag deflation port 315 are directly connected to deflate the airbag. Figure 12c As shown;

[0062] When the piston 304 drives the optocoupler module board 309 to move to the pressure-holding mark slot 3102, the main air intake channel 313 is located between the second sealing guide ring 3044 and the third sealing guide ring 3045, and the airbag connection port 314 is located between the first sealing guide ring 3043 and the second sealing guide ring 3044, so that the main air intake channel 313, the airbag connection port 314 and the airbag deflation port 315 are isolated from each other to maintain the pressure of the airbag; Figure 12b As shown;

[0063] When the piston 304 drives the optocoupler module board 309 to the inflation mark slot 3103, the airbag connection port 314 and the airbag deflation port 315 are both located between the second sealing guide ring 3044 and the third sealing guide ring 3045, thereby connecting to inflate the airbag; Figure 12a As shown.

[0064] Please continue reading Figure 11 The present invention also provides a smart sleep system, including a host controller 1, an air pump 2 and an airbag mattress. The airbag mattress includes multiple independently arranged airbags 4. The airbags 4 and the air pump 2 are connected through the gas-liquid electric valve 3 of the present invention. The host controller 1 is connected to a control terminal 5 to receive inflation control signals and control the gas-liquid electric valve 3 to inflate and deflate the airbags 4.

[0065] The flow cross-section of the gas-hydraulic electric valve of the present invention is not limited, therefore one gas-hydraulic electric valve 3 can simultaneously and quickly control the inflation and deflation of multiple airbags 4, saving costs; at the same time, the multiple gas-hydraulic electric valves 3 of the present invention can be easily integrated and expanded, ensuring a simple and compact overall structure. As a preferred embodiment, the airbag mattress includes 12 independently arranged airbags 4, with 3 airbags forming a group connected to one gas-hydraulic electric valve 3, corresponding to the head and neck area, waist area, hip area and leg area respectively, realizing zoned and rapid adjustment. The flow cross-sectional area of ​​the gas-hydraulic electric valve can be selected as 30 square millimeters or more.

[0066] This invention allows for airbag inflation and deflation control via mobile app, mini-program, remote control, and other terminals. Upon receiving a command, the main controller 1 controls the pneumatic-hydraulic electric valve 3, enabling rapid inflation and deflation for each of the 12 airbag zones. With the air pump 2 operational, the main air intake channel 313 remains in an inflated state. When the pneumatic-hydraulic electric valve 3 is not operating, it is in a pressure-holding position (indicating a sealed state, preventing inflation and deflation). The specific operating process is as follows:

[0067] 1. When the pneumatic-hydraulic electric valve 3 is in the inflation position, the optocoupler module board 309 moves to the inflation mark slot 3103, the main air inlet channel 313 and the airbag connection port 314 are connected, and the air pump 2 starts to work to inflate the airbag 4. The inflation direction is as follows: Figure 12aAs indicated by the middle arrow; after reaching the preset air pressure value, the pneumatic-hydraulic electric valve 3 returns to the pressure-holding position, as shown. Figure 12b As shown, at this time, the main air intake channel 313, the airbag connection port 314 and the airbag deflation port 315 are isolated from each other, sealing the airbag 4.

[0068] 2. When the pneumatic-hydraulic electric valve 3 is in the deflation position, the airbag connection port 314 and the airbag deflation port 315 are connected, and the pneumatic-hydraulic electric valve 3 begins to deflate. The deflation direction is as follows: Figure 12c As indicated by the middle arrow; once the preset air pressure value is reached, the pressure will stop, and the pneumatic-hydraulic electric valve 3 will return to the pressure-holding position, as shown. Figure 12b As shown, the airbag 4 is sealed.

[0069] Furthermore, the present invention can incorporate a built-in air pressure sensor, which can set the air pressure value to adjust the massage movements and body posture. Through the combined linkage of multiple units, it can realize various massage methods such as wave massage, combination massage, thigh massage, neck massage, and yoga.

[0070] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be defined by the claims.

Claims

1. A gas-liquid electrodynamic valve, characterized in that The valve body (301) is provided with a total air inlet channel (313) and at least one air passage, the total air inlet channel (313) and each air passage are in communication, the air passage is provided with an air bag connecting port (314), an air bag exhaust port (315), a piston (304) and an optical coupling module plate (309), the piston (304) is connected with the reduction gearbox (307), the piston (304) is provided with at least three groups of sealing guide rings, the piston (304) is driven by the reduction gearbox (307) to approach the air bag and sequentially provides a deflation position, a pressure maintaining position and an inflation position under the control of the optical coupling module plate (309), the air bag connecting port (314) and the air bag exhaust port (315) are in communication at the deflation position, the total air inlet channel (313), the air bag connecting port (314) and the air bag exhaust port (315) are isolated from each other at the pressure maintaining position, and the air bag connecting port (314) and the total air inlet channel (313) are in communication at the inflation position. The piston (304) comprises a mounting seat (3041) and a piston push rod (3042), the piston push rod (3042) is sequentially provided with coaxial first, second and third sealing guide rings (3043, 3044 and 3045). Each air passage is provided with a scale plate (310), the scale plate (310) is formed with three positioning grooves, namely a deflation mark groove (3101), a pressure maintaining mark groove (3102) and an inflation mark groove (3103), the optical coupling module plate (309) moves with the piston (304), and the optical coupling module plate (309) sequentially passes through the three positioning grooves on the scale plate (310) in the process of approaching the air bag. When the piston (304) drives the optical coupling module plate (309) to move to the deflation mark groove (3101), the total air inlet channel (313) is located between the first and second sealing guide rings (3043 and 3044), and the air bag connecting port (314) and the air bag exhaust port (315) are directly communicated to deflate the air bag. When the piston (304) drives the optical coupling module plate (309) to move to the pressure maintaining mark groove (3102), the total air inlet channel (313) is located between the second and third sealing guide rings (3044 and 3045), and the air bag connecting port (314) is located between the first and second sealing guide rings (3043 and 3044), so that the total air inlet channel (313), the air bag connecting port (314) and the air bag exhaust port (315) are isolated from each other to maintain the pressure of the air bag. When the piston (304) drives the optical coupling module plate (309) to move to the inflation mark groove (3103), the air bag connecting port (314) and the air bag exhaust port (315) are both located between the second and third sealing guide rings (3044 and 3045), so as to be communicated to inflate the air bag.

2. The gas-liquid electric valve according to claim 1, wherein The air passage on the valve body (301) includes a first hollow section (3011) and a second hollow section (3012), the first hollow section (3011) is provided with a sliding groove (3013); each group of sealing guide rings is equipped with a sealing ring (305), the sealing ring (305) and the second hollow section (3012) on the valve body (301) are in interference fit; the piston push rod (3042) reciprocates in the second hollow section (3012), the mounting seat (3041) reciprocates in the first hollow section (3011); the mounting seat (3041) is a square body, the first hollow section (3011) is a square through hole, the piston push rod (3042) is a cylinder, and the second hollow section (3012) is a circular through hole.

3. The gas-liquid electric valve according to claim 2, wherein The light coupling module board (309) is a pair of slot type light coupling module boards, which is composed of an infrared transmitting tube and a phototransistor receiving tube, and judges the current position through light path shielding; the light coupling module board (309) has an upward U-shaped opening for the scale plate (310) to pass through, one end of the U-shaped opening is a transmitting end, and the other end is a receiving end; when the transmitting and receiving ends on the U-shaped opening are aligned with the positioning groove on the scale plate (310), a positioning signal is output, and the light coupling module board (309) is connected with the travel switch circuit board (312) to judge specific position information.

4. The gas-liquid electric valve according to claim 3, wherein The travel switch circuit board (312) is fixed on the valve body (301) through the scale plate (310), and the valve body (301) is provided with an air passage cover (302) located above the total air inlet passage (313).

5. The gas-liquid electric valve according to claim 1, wherein The reduction gearbox (307) includes a plurality of driving units arranged side by side, each driving unit is connected with a piston (304) of an air passage; the driving unit includes a first housing (3071), a second housing (3072), a motor (3073), a reduction gear (3074), a rotating shaft (3075), a pull rod (3076) and a travel switch (3077), the reduction gear (3074) is fixed on the rotating shaft (3075), the pull rod (3076) is provided with a rack and the reduction gear (3074) is connected through meshing, the pull rod (3076) is connected with the piston (304), and the light coupling module board (309) is fixedly installed on the pull rod (3076).

6. The gas-liquid electric valve according to claim 5, wherein The plurality of driving units arranged side by side are isolated, mounted and fixed through the U-shaped connecting piece (306), each driving unit is clamped in the U-shaped connecting piece (306), the two sides of the U-shaped connecting piece (306) are fixed to the valve body (301) through the mounting seat (3062), and the bottom plate of the U-shaped connecting piece (306) is provided with an opening groove (3061) for the pull rod (3076) to pass through.

7. A smart sleep system comprising a host controller (1), an air pump (2) and an air chamber mattress, characterized in that, The air bag mattress comprises a plurality of independently arranged air bags (4), the air bags (4) and the air pump (2) are connected through the air-liquid electric valve (3) according to any one of claims 1-6, and the main controller (1) is connected with the control terminal (5) to receive the inflation control signal and control the air-liquid electric valve to inflate or deflate the air bags (4).

8. The smart sleep system of claim 7, wherein, The air bag mattress comprises 12 independently arranged air bags (4), and every three air bags form a group connected to an air-liquid electric valve (3).

9. The smart sleep system of claim 7, wherein, The control terminal (5) is a remote controller, an APP or a WeChat applet.

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