Seat air valve control device

Abstract

The utility model belongs to the technical field of air valves, and discloses a seat air valve control device which comprises a shell and a circuit board, the shell comprises an upper cover and a bottom shell, the upper cover covers the bottom shell, the circuit board is arranged in the middle of the upper cover, a massage air valve, a waist support air valve and an air escape valve are arranged on the bottom shell, and the circuit board is electrically connected with the massage air valve and the waist support air valve. The gas pressure is controlled to adjust the gas release valve, the gas release valve comprises a movable plug and a spring, the spring is connected to the movable plug in a sleeving mode, and the gas pressure drives the movable plug to open and close the gas release valve; the air release valve is arranged, the pressure release function is achieved with extremely low cost, the highest pressure of an air pressure system is limited, other air pressure devices are prevented from being damaged by too high pressure, the large air release hole diameter is adopted, the air flow speed during air release is effectively reduced, and therefore air release noise is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of air valve control technology, specifically a seat air valve control device. Background Technology

[0002] The existing patent publication number CN223116234U discloses an automobile, a massage seat, and a seat air valve control device, including a massage air valve chamber with a massage air valve inside, and a lumbar support air valve chamber with a lumbar support air valve inside. Gas enters the main air inlet, passes through the massage air valve chamber and the lumbar support air valve chamber, and enters an air bag connected to the lumbar support air bag interface and the massage air bag interface, forming a lumbar support inflation air path and a massage inflation air path; the gas in the air bag is released through the massage air valve chamber and the lumbar support air valve chamber. This design creates air vents for the lumbar support and massage. A cross-shaped vent groove is located on the middle shell, surrounding the massage valve chamber. This invention controls the flow of gas through the lumbar support inflation and massage inflation paths, as well as the lumbar support deflation and massage deflation paths, providing dual services of lumbar and back massage for seat users. The massage and lumbar support valves replace electromagnetic valves, resulting in smaller size, lower energy consumption, less resistance, lighter weight, quieter operation, and lower radiation.

[0003] The existing design has problems such as large thickness, uncontrollable internal pressure, air leakage in the foolproof connector, and complex structure of conductive metal parts that are easily damaged.

[0004] A seat valve control device is proposed to solve the above problems. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a seat air valve control device, which solves the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a seat air valve control device, comprising a housing and a circuit board. The housing includes an upper cover and a lower cover, with the upper cover covering the lower cover. A circuit board is disposed in the middle of the upper cover. A massage air valve, a lumbar support air valve, and a deflation valve are disposed on the lower cover. The circuit board is electrically connected to the massage air valve and the lumbar support air valve to adjust the gas pressure and control the deflation valve. The deflation valve includes a movable plug and a spring, with the spring sleeved on the movable plug. Gas pressure drives the movable plug to open and close the deflation valve.

[0007] Preferably, the vent valve further includes a vent valve cavity and a vent hole wall, and the spring is disposed in the vent valve cavity; the movable plug is engaged with the vent hole wall, and a portion of it is located in the vent valve cavity.

[0008] Preferably, the movable plug includes a front part, a middle part, and a rear part; the spring is sleeved on the middle part and the rear part of the movable plug, with one end abutting against the vent wall and the other end abutting against the rear part of the movable plug.

[0009] Preferably, a screw is provided on one side of the rear of the movable plug, and a fine-tuning spring is provided for the screw to move back and forth.

[0010] Preferably, the bottom shell is ultrasonically bonded to the top cover to form a gas flow cavity; the bottom shell is provided with a massage air valve cavity, a lumbar support air valve cavity, a lumbar support air bag interface, a massage air bag interface, and a main air inlet; a massage air valve is provided in the massage air valve cavity, and a lumbar support air valve is provided in the lumbar support air valve cavity; clamping components are provided on the massage air valve and the lumbar support air valve, and electrically connected to the circuit board; gas enters the main air inlet, passes through the massage air valve cavity and the lumbar support air valve cavity, and enters the air bag connected to the lumbar support air bag interface and the massage air bag interface through the lumbar support air bag interface and the massage air bag interface, forming a lumbar support inflation air path and a massage inflation air path; the gas in the air bag is deflated through the massage air valve cavity and the lumbar support air valve cavity, forming a lumbar support deflation air path and a massage deflation air path.

[0011] Preferably, the massage air valve includes a rocker arm, a plug, a reset elastic element, a memory metal wire, and a clamping element; the rocker arm is provided with plugs at both ends, and the plugs are provided corresponding to the air valve inlet and air valve outlet; the clamping element clamps both ends of the memory metal wire and connects to the circuit board; the memory metal wire is sleeved on the rocker arm; the reset elastic element is located on one side of the rocker arm.

[0012] Preferably, the massage valve controls the inflation and deflation of an air bag.

[0013] Preferably, the lumbar support air valve includes a single rocker arm, a plug, a reset elastic element, a memory metal wire, and a clamping element; a plug is provided at one end of the single rocker arm, and the plug is correspondingly provided with the air valve inlet and air valve outlet; the clamping element clamps both ends of the memory metal wire and connects to the circuit board; the memory metal wire is sleeved on the single rocker arm; the reset elastic element is located on one side of the single rocker arm.

[0014] Preferably, there are at least two sets of waist support air valves connected in series to control the inflation and deflation of an air bag; one set of waist support air valves controls one end of the plug to open the air valve inlet, and the other set of waist support air valves closes the air valve outlet.

[0015] Preferably, the front part of the movable plug is spherical and made of rubber.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model achieves pressure relief function at extremely low cost by cleverly setting the vent valve, limiting the maximum pressure of the pneumatic system, preventing excessive pressure from damaging other pneumatic components, and using a relatively large vent diameter to effectively reduce the airflow speed during venting, thereby reducing venting noise.

[0018] 2. This utility model, through the ingenious anti-foolproof connector and the eccentric setting of the slot, can prevent the connector itself from being inserted backwards, and can also prevent the 3-air-path connector and the 2-air-path connector from being inserted backwards.

[0019] 3. This utility model optimizes the internal structure of the seat air valve control device by replacing the original copper needle and middle shell with a clever clamping component. The clamping component can both hold the memory metal wire and electrically connect the circuit board, preventing structural failures of conductive metal parts, greatly reducing the failure rate of internal components, and saving costs. Of course, the irregular design of the clamping component not only prevents movement inside the seat air valve control device, but also ensures circuit connectivity, making it easy to directly control the lumbar support air valve and massage air valve.

[0020] 4. This utility model utilizes the structure of the upper cover and the bottom shell to place the circuit board in the middle, which greatly reduces the thickness of the seat valve control device and is suitable for the thickness requirements of some seat components.

[0021] 5. This utility model provides dual services of lumbar and back massage to seat users by controlling the gas through the lumbar support inflation circuit, massage inflation circuit, lumbar support deflation circuit, and massage deflation circuit via the massage air valve and lumbar support air valve. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the seat air valve control device of this utility model;

[0023] Figure 2 This is a schematic diagram of the bottom shell structure of the seat air valve control device of this utility model;

[0024] Figure 3 This is an exploded structural diagram of the seat air valve control device of this utility model;

[0025] Figure 4 This is another exploded structural diagram of the seat valve control device of this utility model;

[0026] Figure 5 This is a cross-sectional schematic diagram of the vent valve of the seat air valve control device of this utility model;

[0027] Figure 6 This is a cross-sectional schematic diagram of another vent valve in the seat air valve control device of this utility model.

[0028] Figure 7This is a schematic diagram of the massage air valve structure of the seat air valve control device of this utility model;

[0029] Figure 8 This is a schematic diagram of the lumbar support air valve structure of the seat air valve control device of this utility model;

[0030] Figure 9 This is a schematic diagram of the explosion-proof connector structure of the seat valve control device of this utility model.

[0031] Figure 10 This is a cross-sectional schematic diagram of the foolproof connector of the seat valve control device of this utility model;

[0032] Figure 11 This is a cross-sectional view of the clamping component of the seat valve control device of this utility model located inside the device.

[0033] Figure 12 This is a schematic diagram of the clamping component structure of the seat air valve control device of this utility model;

[0034] Figure 13 This is another structural schematic diagram of the clamping component of the seat air valve control device of this utility model.

[0035] In the diagram: 100. Seat air valve control device; 1. Top cover; 2. Circuit board; 3. Bottom shell; 31. Massage air bag interface; 32. Lumbar support air bag interface; 33. Sealing port; 34. Lumbar support air valve chamber; 35. Massage air valve chamber; 4. Air release valve; 41. Air release hole wall; 42. Moving plug; 421. Front part of moving plug; 422. Middle part of moving plug; 423. Rear part of moving plug; 43. Spring; 44. Screw; 45. Air release valve chamber; 5. Massage air valve; 51. Rocker arm; 511. Forward tilting part; 52. Plug; 53. Reset elastic element; 54. Memory metal wire; 55. Clamping element; 6. Waist support valve; 61. Single rocker arm; 611. Forward tilting part; 62. Plug; 63. Reset elastic element; 64. Memory metal wire; 65. Clamping element; 651. Snap-fit ​​groove; 652. Short arm part; 653. Long arm part; 654. Left foot part; 655. Right foot part; 656. Folding part; 657. Upper folding part; 658. Lower folding part; 7. Foolproof plug; 71. Sealing ring; 72. Kit part; 73. Inner plug; 8. Main air inlet. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] like Figure 1-13 As shown in Embodiment 1, this utility model provides: a seat air valve control device, including a housing and a circuit board 2. The housing includes an upper cover 1 and a lower cover 3, which are connected sequentially from top to bottom. The middle cover 3 forms a gas flow cavity by ultrasonically bonding the upper cover 1. The lower cover 3 is provided with a massage air valve cavity 35, a lumbar support air valve cavity 34, a lumbar support air bag interface 32, a massage air bag interface 31, and a main air inlet 8. A massage air valve 5 is provided in the massage air valve cavity 35, and a lumbar support air valve 6 is provided in the lumbar support air valve cavity 34. The massage air valve 5 and the lumbar support air valve 6 are provided with snap-fit ​​mechanisms. The slot 651 has a clamping member 65 clamped in it, and the clamping member 65 is electrically connected to the circuit board 2. Gas enters the main air inlet 8, passes through the massage air valve chamber 35 and the waist support air valve chamber 34, and enters the air bag connected to the waist support air bag interface 32 and the waist support air bag interface 31 through the waist support air bag interface 32 and the waist support air bag interface 31, forming the waist support inflation air path and the massage inflation air path. The gas in the air bag is released through the massage air valve chamber 35 and the waist support air valve chamber 34, forming the waist support release air path and the massage release air path. The clamping members (55, 65) are made of metal, can conduct electricity, and can also clamp the memory metal wire 54.

[0038] In this embodiment, the massage valve cavity 35 is provided with a valve inlet, a valve outlet, and an air delivery port. The position of the air delivery port is perpendicular to the positions of the valve inlet and the valve outlet due to the gas inflow or outflow direction. For example, if the valve inlet opens in the X-axis direction of the massage valve cavity 35, then the air delivery port opens in the Z-axis direction of the massage valve cavity 35. Preferably, the position of the air delivery port is set on the same horizontal plane as the positions of the valve inlet and the valve outlet due to the gas inflow or outflow direction. For example, if the valve inlet opens in the Z-axis direction of the massage valve cavity 35, then the air delivery port opens in the Z-axis direction of the massage valve cavity 35.

[0039] The air inlet is connected to the waist support air bag interface 31; the massage air valve 5 controls the opening and closing of the air valve inlet and the air valve outlet, and the gas flows through the main air inlet 8, the air valve inlet and the air inlet into the air bag to form a massage inflation air path.

[0040] In this embodiment, the massage air valve 5 includes a rocker arm 51, a plug 52, a reset elastic element 53, a memory metal wire 54, and a clamping element 55. The rocker arm 51 has plugs 52 at both ends, corresponding to the air valve inlet and outlet. At least two sets of clamping elements 55 are needed to clamp both ends of the memory metal wire 54, electrically connected to the circuit board 2. The memory metal wire 54 is sleeved on the forward tilting part 511, with the end of the forward tilting part 511 away from the clamping element 55 tilting forward. The reset elastic element 53 is located on one side of the rocker arm 51, particularly against the side of the forward tilting part 511. When the clamping element 55 energizes the memory metal wire 54, the memory metal wire 54 extends due to the heating effect. When the rocker arm is extended, the reset elastic element 53 presses against the rocker arm 51, causing the plug 52 at one end of the rocker arm 51 to block the air valve inlet or outlet. When the clamping member 55 de-energizes the memory metal wire 54, the memory metal wire 54 retracts, and the reset elastic element 53 presses against the rocker arm 51, causing the plug 52 at one end of the rocker arm 51 to block the air valve inlet or outlet. Of course, only one of the air valve inlet and outlet can be blocked by the plug 52, not both. Within the extension and retraction range of the memory metal wire 54, the rocker arm 51 becomes a seesaw, using a fulcrum in the middle of the rocker arm 51 to make the massage air valve cavity 35 swing horizontally. The reset elastic element 53 here can be a spring, a torsion spring, or other elastic element that performs the above function.

[0041] In this embodiment, the rocker arm 51 includes a forward tilting portion 511, which is disposed at one end of the rocker arm 51 near the plug 52.

[0042] In this embodiment, the lumbar support air valve cavity 34 is provided with an air valve inlet, an air valve outlet, and an air delivery port. The air delivery port is perpendicular to the gas inflow or outflow direction of the air valve inlet and the air valve outlet. For example, if the air valve inlet opens in the X-axis direction of the massage air valve cavity 35, then the air delivery port opens in the Z-axis direction of the massage air valve cavity 35. Of course, if the air valve inlet opens in the Z-axis direction of the massage air valve cavity 35, then the air delivery port can also open in the Z-axis direction of the massage air valve cavity 35. The air delivery port is connected to the lumbar support air bag interface 32. The lumbar support air valve 6 controls the opening and closing of the air valve inlet and the air valve outlet. The gas flows through the main air inlet 8, the air valve inlet, and the air delivery port into the air bag to form the lumbar support inflation air path.

[0043] In this embodiment, the lumbar support air valve 6 includes a single rocker arm 61, a plug 62, a reset elastic element 63, a memory metal wire 64, and a clamping element 65. One end of the single rocker arm 61 is provided with a plug 62, which corresponds to the air valve inlet and outlet. At least two sets of clamping elements 65 clamp both ends of the memory metal wire 64 and are electrically connected to the circuit board 2. The memory metal wire 64 is sleeved on the forward tilting part 611, with the end of the forward tilting part 611 away from the clamping element 65 tilted forward. The reset elastic element 63 is located on one side of the single rocker arm 61. When the clamping element 65 cuts the memory metal wire 64... After being energized, the memory metal wire 64 retracts, and the reset elastic element 63 abuts against the single rocker arm 61, causing the plug 62 at one end of the single rocker arm 61 to block the air valve inlet or air valve outlet. Of course, only one of the air valve inlet and air valve outlet can be blocked by the plug 62, not both. The single rocker arm 61 opens or blocks the air valve inlet or air valve outlet within the extension and retraction range of the memory metal wire 64. Using a certain support point in the middle attachment of the single rocker arm 61, the waist support air valve cavity 34 swings horizontally. The reset elastic element 53 here can be a spring, a torsion spring, or other elastic element that performs the above function.

[0044] In this embodiment, the rocker arm 61 includes a forward tilting portion 611, which is disposed at one end of the rocker arm 61 near the plug 62.

[0045] In this embodiment, the massage air valve 5 and the waist support air valve 6 control the opening and closing of the air valve inlet and air valve outlet through plugs (52, 62); the massage air valve 5 controls one end of the plug 52 to open the air valve inlet and the other end to close the air valve outlet.

[0046] In this embodiment, only one set of massage air valves 5 is needed to control the inflation and deflation of an air bag. Therefore, multiple sets of massage air valve chambers 35 and massage air valves 5 can be set on the bottom shell 3, corresponding one-to-one with the massage air bag interface 31. Each set of massage air valves 5 can independently control the inflation and deflation of the air bag to achieve the massage function.

[0047] In this embodiment, there are at least two sets of waist support air valves 6 connected in series to control the inflation and deflation of an air bag; one set of waist support air valves 6 controls one end of the plug 62 to open the air valve inlet, and the other set of waist support air valves 6 closes the air valve outlet; since waist massage requires intermittent inflation and deflation of the air bag, the series connection of two sets of waist support air valves 6 to control the air valve inlet and outlet is more conducive to the calculation and control of the control circuit on the circuit board 2.

[0048] In this embodiment, preferably, the plug includes a rubber pad, a hinge, and a clamping part. The hinge connects the clamping part and the rubber pad. The hinge can make the rubber pad seal more tightly with the air valve inlet and air valve outlet, preventing misalignment that could lead to unnecessary continuous inflation or deflation. When the lumbar support air valve 6 and the massage air valve 5 drive the plug to open and close the air valve inlet and air valve outlet, the hinge, being made of soft rubber, is movable.

[0049] In this embodiment, the clamping members (55, 65) are disposed within the snap-fit ​​groove 651 and abut against the snap-fit ​​groove 651, and are electrically connected to the circuit board 2; the clamping members (55, 65) provide power to the massage air valve 5 and the lumbar support air valve 6. The snap-fit ​​groove 651 is disposed within the lumbar support air valve cavity 34 and the massage air valve cavity 35, with one end fixed within the lumbar support air valve cavity 34 and the massage air valve cavity 35, and the other end used to snap the clamping members (55, 65) to prevent the clamping members (55, 65) from detaching;

[0050] In this embodiment, the clamping member (55, 65) includes a short arm 652, a long arm 653, a left foot 654, and a right foot 655; the short arm 652 and the long arm 653 are electrically connected to the circuit board 2, and the left foot 654 and the right foot 655 are engaged in the slot 651; it also includes a folding part 656, which folds inward between the short arm 652 and the long arm 653 or between the left foot 654 and the right foot 655 to clamp the memory metal wire (54, 64). Of course, another clamping member (55, 65) also includes an upper folding part 657 and a lower folding part 658, which alternately fold inward through the short arm 652 and the long arm 653 or between the left foot 654 and the right foot 655 to clamp the memory metal wire (54, 64), just like the fingers of both hands alternately holding an object.

[0051] In this embodiment, the seat air valve control device 100 further includes a foolproof connector 7. The foolproof connector 7 is sleeved on the massage air bag interface 31 and the lumbar support air bag interface 32 to facilitate connection with the air bag of the seat and prevent misconnection. The foolproof connector 7 includes a sealing ring 71, a fitting part 72, and an inner plug 73. The fitting part 72 is provided with an inner plug 73. The fitting part 72 has an air inlet corresponding to the massage air bag interface 31 and the lumbar support air bag interface 32. The air inlet is blocked by the inner plug when the air bag needs to be sealed. Interface 31 and lumbar support airbag interface 32 extend out of the bottom shell 3 of the seat air valve control device 100 and are sleeved by the foolproof plug 7. The sealing ring 71 is set on the airbag interface 31 and lumbar support airbag interface 32 to prevent air leakage from the airbag interface 31 and lumbar support airbag interface 32. The kit part 72 is sleeved on the airbag interface 31 and lumbar support airbag interface 32. The inner plug 73 blocks the air supply port of the airbag interface 31 and lumbar support airbag interface 32 when it is necessary to seal the airbag. The inner plug 73 opens or closes the air supply port as the air pressure is adjusted.

[0052] In this embodiment, the seat air valve control device 100 further includes a vent valve 4. The vent valve 4 is disposed on the bottom shell 3 to facilitate gas venting when passing through the air valve exhaust port, allowing the gas to carry away more heat and vent faster. The vent valve 4 includes a spring vent valve and a magnetic vent valve. The spring vent valve includes a vent valve cavity 45, a vent hole wall 41, a movable plug 42, a spring 43, and a screw 44. The vent valve cavity 45 is provided with a portion of the movable plug 42 and spring 43, which are movable... The plug 42 is sleeved by the spring 43 and engaged with the vent wall 41. The movable plug 42 includes a front part 421, a middle part 422, and a rear part 423. The spring 43 is sleeved on the middle part 422 and the rear part 423 of the movable plug, with one end abutting against the vent wall 41 and the other end abutting against the rear part 423 of the movable plug, so that the front part 421 of the movable plug blocks the vent hole of the vent wall 41. The front part 421 of the movable plug is spherical.

[0053] When the air pressure of the seat air valve control device 100 pushes open the movable plug 42, the middle part 422 or the rear part 423 of the movable plug moves towards the front part 421 of the movable plug under the compression of the spring. The front part 421 of the movable plug moves inward, thereby opening the vent hole on the vent wall 41. Excess gas is then forced out of the vent hole by the air pressure. It's important to note that if the gas pressure is low, the middle part 422 of the movable plug compresses the spring 43 from the middle part 422 to the vent wall 41, causing the front part 421 of the movable plug to move inward a small distance. Conversely, if the gas pressure is high, the rear part 423 of the movable plug will also participate in compressing the spring 43, causing the front part of the movable plug to move inward beyond the initial small distance. The movable plug 42 can be made of rubber.

[0054] The vent valve 4 is lined with sound-absorbing cotton; a screw 44 is provided on one side of the rear part 423 of the movable plug. The screw 44 can move back and forth to fine adjust the spring force of the spring 43, thereby further fine adjusting the vent pressure. The different spring forces determine how much relative pressure the gas needs to push open the movable plug 42.

[0055] In this embodiment, the thickness of the massage valve chamber 35 and the lumbar support valve chamber 34 on the bottom shell 3 is 2-8mm, preferably 2.8mm. The thinner thickness adjusts the thickness of the seat valve control device, allowing more other control units or components to be installed in the space inside the seat.

[0056] In this embodiment, the thickness of the massage air valve 5 and the waist support air valve 6 within the massage air valve cavity 35 and the waist support air valve cavity 34 is 1.5-7mm, preferably 2mm.

[0057] In this embodiment, after the upper cover 1 and the bottom shell 3 are closed, a sealed space is formed. Of course, due to assembly needs, multiple sealing ports 33 are opened on the bottom shell 3. After the upper cover 1 and the bottom shell 3 are closed, sealant can be filled into the sealing ports 33 by ultrasonic waves to seal the sealing ports.

[0058] Example 2: This utility model provides a technical solution: a massage chair, which includes an air bag and the aforementioned chair air valve control device 100, wherein the air inlet is connected to the massage air bag interface 31 and the lumbar support air bag interface 32; the massage air bag interface 31 and the lumbar support air bag interface 32 are connected to the air bag; the lumbar support inflation air passage 110 and the massage inflation air passage 120 provide an air source for the air bag.

[0059] The air bag is connected to the air inlet for air release. The seat air valve control device 100 controls the massage air valve 5 and the lumbar support air valve 6 to open the air valve exhaust port, and release the gas in the air bag through the massage air release path and the lumbar support air release path.

[0060] Example 3: This utility model provides a technical solution: a car, including the massage seat described above.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0062] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seat air valve control device, comprising a housing and a circuit board, characterized in that, The housing includes an upper cover and a lower cover. The upper cover covers the lower cover and has a circuit board in the middle. The lower cover has a massage air valve, a waist support air valve, and a vent valve. The circuit board is electrically connected to the massage air valve and the waist support air valve to adjust the gas pressure and control the vent valve. The vent valve includes a movable plug and a spring. The spring is sleeved on the movable plug, and the gas pressure drives the movable plug to open and close the vent valve.

2. The seat valve control device according to claim 1, characterized in that: The vent valve also includes a vent valve cavity and a vent hole wall, and the spring is disposed in the vent valve cavity; the movable plug is engaged with the vent hole wall, and part of it is located in the vent valve cavity.

3. The seat valve control device according to claim 2, characterized in that: The movable plug includes a front part, a middle part, and a rear part; the spring is sleeved on the middle part and the rear part of the movable plug, with one end abutting against the vent wall and the other end abutting against the rear part of the movable plug.

4. The seat valve control device according to claim 3, characterized in that: A screw is provided on one side of the rear of the movable plug, and the screw is adjusted by a spring that moves back and forth.

5. The seat valve control device according to claim 1, characterized in that: The bottom shell is ultrasonically bonded to the top cover to form a gas flow cavity. The bottom shell is provided with a massage valve cavity, a lumbar support valve cavity, a lumbar support air bag interface, a massage air bag interface, and a main air inlet. A massage valve is installed inside the massage valve cavity, and a lumbar support valve is installed inside the lumbar support valve cavity. Clamping components are installed on the massage valve and lumbar support valve, which are electrically connected to the circuit board. Gas enters the main air inlet, passes through the massage valve cavity and the lumbar support valve cavity, and then enters the air bag connected to the lumbar support air bag interface and the massage air bag interface, forming a lumbar support inflation air path and a massage inflation air path. The gas in the air bag is deflated through the massage valve cavity and the lumbar support valve cavity, forming a lumbar support deflation air path and a massage deflation air path.

6. The seat air valve control device according to claim 1 or 5, characterized in that: The massage air valve includes a rocker arm, a plug, a reset elastic element, a memory metal wire, and a clamping element; the rocker arm has plugs at both ends, and the plugs are corresponding to the air valve inlet and air valve outlet; the clamping element clamps both ends of the memory metal wire and connects to the circuit board; the memory metal wire is sleeved on the rocker arm; the reset elastic element is located on one side of the rocker arm.

7. The seat valve control device according to claim 6, characterized in that: The massage valve controls the inflation and deflation of an air bag.

8. The seat valve control device according to claim 1 or 5, characterized in that: The lumbar support air valve includes a single rocker arm, a plug, a reset elastic element, a memory metal wire, and a clamping element; a plug is provided at one end of the single rocker arm, and the plug is correspondingly provided with the air valve inlet and air valve outlet; the clamping element clamps both ends of the memory metal wire and connects to the circuit board; the memory metal wire is sleeved on the single rocker arm; the reset elastic element is located on one side of the single rocker arm.

9. The seat valve control device according to claim 8, characterized in that: The lumbar support air valve has at least two sets, which are connected in series to control the inflation and deflation of an air bag; one set of lumbar support air valves controls one end of the plug to open the air valve inlet, and the other set of lumbar support air valves closes the air valve outlet.

10. The seat valve control device according to claim 3 or 4, characterized in that: The front of the movable plug is spherical and made of rubber.

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