Air bag valve with temperature control function

Abstract

The invention discloses an air bag valve with a temperature control function, which relates to the technical field of valves and comprises a connecting plate strip for fixed installation, a valve seat body is connected onto the connecting plate strip, an upper sealing groove and a lower sealing groove are respectively arranged on two sides of the valve seat body, and sealing washers are arranged in the upper sealing groove and the lower sealing groove. A motor base is fixedly arranged on an inner ring of the lower sealing groove, a transmission mechanism is installed on the motor base, a sealing groove is formed in the bottom of the inner ring of the lower sealing groove, a welding ring is arranged between the sealing groove and the lower sealing groove, a valve cover is installed in the sealing groove, a sealing rubber ring is arranged between the sealing groove and the valve cover, and the center of the valve cover is connected with the transmission mechanism. A second heating film and a spiral pipe are arranged on the upper side of the valve deck, inclined spraying pipes are evenly arranged on the spiral pipe, a friction plate is rotationally installed on the lower side of the valve deck, the two sides of the valve deck are kept within a set temperature threshold value through the second heating film and the friction plate, and therefore reliable sealing of the valve deck is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to an air bag valve with temperature control. Background Art

[0002] Among civil aircraft, airships, super-pressure balloons and other aerostats have broad application prospects in both civil and military fields and have attracted attention from all countries. The bladder in a general aerostat is indispensable. The bladder can assist in controlling the flight of the aerostat by changing the pressure difference between the inside and outside of the bladder, and the pressure difference between the inside and outside of the bladder is adjusted by the bladder valve.

[0003] The airbag valve provided by the prior art will affect the normal operation of the airbag valve in the low temperature environment at high altitude, causing the valve to be unable to open or close normally. Therefore, it is very necessary to provide an airbag valve with temperature feedback and control the temperature according to the temperature feedback. Summary of the invention

[0004] The object of the present invention is to provide an airbag valve with temperature control to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A temperature-controlled airbag valve, comprising a connecting plate strip for fixed installation, the connecting plate strip being connected to a valve seat body, an upper sealing groove and a lower sealing groove being respectively provided on both sides of the valve seat body, sealing gaskets being provided in the upper sealing groove and the lower sealing groove, the upper sealing groove and the lower sealing groove being sealed and installed between bolts and the connecting plate strip, a motor seat being fixedly provided on the inner ring of the lower sealing groove, a transmission mechanism being installed on the motor seat, a sealing groove being provided at the bottom of the inner ring of the lower sealing groove, a welding ring being provided between the sealing groove and the lower sealing groove, a valve cover being installed in the sealing groove, a sealing rubber ring being provided between the sealing groove and the valve cover, and the center of the valve cover being connected to the transmission mechanism.

[0006] A covering plate is arranged on the upper side of the valve cover, connecting columns are evenly arranged between the covering plate and the valve cover, a spiral tube is arranged between the covering plate and the valve cover, inclined nozzles are evenly arranged on the spiral tube, a heating film 2 is covered on the upper surface of the valve cover, a blower is arranged on the covering plate, the blower is connected to the spiral tube, the edge of the covering plate is installed in contact with the outer side of the sealing groove, and air outlet grooves are evenly arranged at the contact portion between the covering plate and the sealing groove.

[0007] As a further scheme of the present invention: the transmission mechanism includes a motor housing, the outer side of the motor housing is provided with thermal insulation cotton, the motor housing is covered with a heating film, the outer side of the thermal insulation cotton is provided with a temperature sensor, the inner side of the motor housing is provided with an electric control system board, the temperature sensor is electrically connected to the electric control system board, a hollow cup motor is fixedly arranged in the motor housing, the hollow cup motor is connected to a driving gear, a connecting sleeve is provided on the motor seat, a push rod is provided in the connecting sleeve, the push rod is plugged into the motor seat, a lead screw is threadedly connected to the inner side of the push rod, a bearing is provided between the lead screw and the connecting sleeve, a driven gear is provided on the top of the lead screw, the driving gear and the driven gear are meshed with each other, and the push rod is connected to the covering plate.

[0008] As a further solution of the present invention: the end of the push rod is connected to a spring seat, the edge of the spring seat is evenly rotatably installed with a connecting spring, the connecting spring is rotatably installed between the covering plate, a matching rod is provided at the center of the spring seat, a matching seat is provided at the center of the valve cover, the matching rod and the matching seat are plugged together, and a travel switch is provided between the push rod and the connecting sleeve.

[0009] As a further solution of the present invention: a temperature maintaining mechanism is arranged at the bottom of the valve cover, and the temperature maintaining mechanism includes a friction plate rotatably mounted on the outer ring of the valve cover, an inner ring of the friction plate is provided with an annular matching groove, matching blocks are evenly arranged on the outer side of the valve cover, and the matching blocks are sealed to the valve cover through sealing bolts, a friction gasket is arranged on the side where the friction plate and the valve cover contact each other, an outer gear ring is arranged on the outer side of the friction plate, a driving motor is fixedly arranged at the bottom of the lower sealing groove, the driving motor is connected with a driving gear, and the driving gear is meshed with the outer gear ring.

[0010] As a further solution of the present invention: the sum of the tooth thickness of the outer gear ring and the tooth thickness of the driving gear is equal to the lifting stroke of the push rod.

[0011] As a further solution of the present invention: the outer ring of the friction plate is evenly provided with connecting bent rods, the end of the connecting bent rod is provided with a friction head, a rubber covering ring is provided between the lower sealing groove and the sealing groove, and the friction head is installed in contact with the outer side wall of the rubber covering ring.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The surface temperature of the valve cover is maintained by attaching a heating film 2 on the surface of the valve cover. The heat is evenly dispersed to the entire surface of the valve cover by combining a blower, a spiral tube, and an inclined nozzle to keep the temperature of the valve cover uniform. At the same time, the edge of the covering plate extends to the inner circle of the sealing groove, and the air with heat is discharged through the air outlet groove. When discharged, the air carrying heat forms a vortex in the sealing groove, heating the inner side of the sealing groove and the sealing rubber ring, keeping the sealing rubber ring at a constant temperature, and avoiding deformation of the sealing rubber ring due to too low or too high temperature, which affects the sealing effect.

[0013] (2) The temperature of the entire valve is collected through the temperature sensor. When the temperature exceeds the set threshold, the heating film 1 and the heating film 2 are energized and heated in combination with the electronic control system board to keep the entire valve within the set temperature threshold range. The hollow cup motor and the driving gear and the driven gear are used to control the rotation of the screw rod, which drives the push rod to move up and down along the motor seat, thereby driving the cover plate and the valve cover to move up and down to control the opening and closing of the valve. The outer side of the push rod is non-circularly connected to the motor seat, and when the screw rod rotates, it drives the push rod to plug into the motor seat.

[0014] (3) By setting a friction plate on the outer ring of the valve cover, the friction plate is driven by the driving motor, the driving gear and the outer gear ring to rotate on the surface of the valve cover to generate heat by friction, so that the bottom of the valve cover also generates heat, ensuring that the temperature on both sides of the valve cover changes synchronously, avoiding deformation of the valve cover caused by excessive temperature difference on both sides of the valve cover, and ensuring that the valve cover can be reliably combined with the sealing rubber ring for sealing before and after lifting. In order to further ensure the temperature of the sealing rubber ring in the sealing groove, a rubber covering ring is set on the outside of the sealing groove, and a connecting crank rod and a friction head are installed on the outside of the friction plate. When the friction plate rotates, it drives the friction head to rotate and rub on the outside of the rubber covering ring to generate heat, thereby ensuring the temperature of the sealing groove, and then ensuring a reliable seal between the sealing rubber ring and the sealing groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the installation of the hollow cup motor in the present invention.

[0017] Figure 3 It is a schematic diagram of the internal structure of the connecting sleeve in the present invention.

[0018] Figure 4 It is a schematic diagram of the structure on both sides of the valve cover in the present invention.

[0019] Figure 5 for Figure 4 Enlarged structural diagram at A in the middle.

[0020] Figure 6It is a schematic diagram of the transmission structure of the friction plate in the present invention.

[0021] Figure 7 It is a schematic diagram of the installation of the spiral tube in the present invention.

[0022] Figure 8 The figure is a schematic diagram of the installation of the rubber cover ring and the friction head in the present invention.

[0023] In the figure: 1, connecting plate; 2, valve seat body; 20, upper sealing groove; 21, lower sealing groove; 22, sealing gasket; 3, motor seat; 4, thermal insulation cotton; 40, motor housing; 41, heating film 1; 42, electronic control system board; 43, hollow cup motor; 44, driving gear; 45, driven gear; 46, connecting sleeve; 47, bearing; 48, screw rod; 49, push rod; 5, spring seat; 51, connecting spring; 52, matching rod; 6, covering plate; 60, outlet Air groove; 7, friction plate; 70, annular matching groove; 71, matching block; 72, sealing bolt; 73, friction gasket; 74, outer gear ring; 75, drive motor; 76, drive gear; 8, valve cover; 80, heating film 2; 81, spiral tube; 82, connecting column; 83, blower; 84, inclined nozzle; 85, matching seat; 87, sealing rubber ring; 9, sealing groove; 90, welding ring; 91, rubber covering ring; 92, connecting crank rod; 93, friction head. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0025] like Figure 1 , Figure 4 , Figure 5 As shown, a temperature-controlled airbag valve comprises a connecting plate strip 1 for fixed installation, the connecting plate strip 1 is connected to a valve seat body 2, an upper sealing groove 20 and a lower sealing groove 21 are respectively provided on both sides of the valve seat body 2, sealing gaskets 22 are provided in the upper sealing groove 20 and the lower sealing groove 21, the upper sealing groove 20 and the lower sealing groove 21 are sealed and installed between the connecting plate strip 1 by bolts, a motor seat 3 is fixedly provided on the inner ring of the lower sealing groove 21, a transmission mechanism is installed on the motor seat 3, a sealing groove 9 is provided at the bottom of the inner ring of the lower sealing groove 21, a welding ring 90 is provided between the sealing groove 9 and the lower sealing groove 21, a valve cover 8 is installed in the sealing groove 9, a sealing rubber ring 87 is provided between the sealing groove 9 and the valve cover 8, and the center of the valve cover 8 is connected to the transmission mechanism.

[0026] Specifically, the connecting plate strip 1 is fixedly installed, and the upper sealing groove 20 and the lower sealing groove 21 and the sealing gasket 22 on both sides of the connecting plate strip 1 are sealed and installed, so as to form a sealing control area on both sides of the connecting plate strip 1. The valve cover 8 is driven to rise and fall by the transmission mechanism, thereby driving the sealing rubber ring 87 to move in the sealing groove 9, and changing the sealing state between the valve cover 8 and the sealing groove 9.

[0027] like Figure 4 , Figure 7 As shown, a covering plate 6 is arranged on the upper side of the valve cover 8, connecting columns 82 are evenly arranged between the covering plate 6 and the valve cover 8, a spiral tube 81 is arranged between the covering plate 6 and the valve cover 8, inclined nozzles 84 are evenly arranged on the spiral tube 81, a heating film 80 is attached to the upper surface of the valve cover 8, a blower 83 is arranged on the covering plate 6, and the blower 83 is connected to the spiral tube 81, the edge of the covering plate 6 is installed in contact with the outer side of the sealing groove 9, and the contact portion between the covering plate 6 and the sealing groove 9 is evenly provided with air outlet grooves 60.

[0028] Specifically, the surface temperature of the valve cover 8 is maintained by attaching a heating film 80 to the surface of the valve cover 8, and the heat is evenly dispersed to the entire surface of the valve cover 8 by combining the blower 83, the spiral tube 81, and the inclined nozzle 84, so as to keep the temperature of the valve cover 8 uniform. At the same time, the edge of the cover plate 6 is extended to the inner circle of the sealing groove 9, and the air with heat is discharged through the air outlet groove 60. When discharged, the air with heat forms a vortex in the part of the sealing groove 9, and heats the inner side of the sealing groove 9 and the sealing rubber ring 87, so as to keep the sealing rubber ring 87 at a constant temperature, and avoid deformation of the sealing rubber ring 87 due to too low or too high temperature, which affects the sealing effect.

[0029] Further, such as Figure 2 , Figure 3 As shown, the transmission mechanism includes a motor housing 40, the outer side of the motor housing 40 is provided with a heat preservation cotton 4, the motor housing 40 is covered with a heating film 41, the outer side of the heat preservation cotton 4 is provided with a temperature sensor, the inner side of the motor housing 40 is provided with an electric control system board 42, the temperature sensor is electrically connected to the electric control system board 42, a hollow cup motor 43 is fixedly provided in the motor housing 40, the hollow cup motor 43 is connected to a driving gear 44, a connecting sleeve 46 is provided on the motor seat 3, a push rod 49 is provided in the connecting sleeve 46, the push rod 49 is plugged into the motor seat 3, a screw rod 48 is threadedly connected to the inner side of the push rod 49, a bearing 47 is provided between the screw rod 48 and the connecting sleeve 46, a driven gear 45 is provided on the top of the screw rod 48, the driving gear 44 and the driven gear 45 are meshed with each other, and the push rod 49 is connected to the covering plate 6.

[0030] Specifically, the temperature of the entire valve is collected through a temperature sensor. When the temperature exceeds the set threshold, the heating film 1 41 and the heating film 2 80 are powered on in conjunction with the electronic control system board 42 for heating, so as to keep the entire valve within the set temperature threshold range. The hollow cup motor 43, the driving gear 44, and the driven gear 45 control the rotation of the screw rod 48, driving the push rod 49 to move up and down along the motor seat 3, thereby driving the cover plate 6 and the valve cover 8 to move up and down, and controlling the opening and closing of the valve. The outer side of the push rod 49 is non-circularly connected to the motor seat 3, and when the screw rod 48 rotates, it drives the push rod 49 to plug into the motor seat 3.

[0031] Further, such as Figure 4 As shown, the end of the push rod 49 is connected to a spring seat 5, and a connecting spring 51 is evenly rotatably installed on the edge of the spring seat 5. The connecting spring 51 is rotatably installed between the covering plate 6, and a matching rod 52 is provided at the center of the spring seat 5. A matching seat 85 is provided at the center of the valve cover 8. The matching rod 52 is plugged into the matching seat 85, and a travel switch is provided between the push rod 49 and the connecting sleeve 46.

[0032] Specifically, the push rod 49 drives the spring seat 5 to rise and fall synchronously when it rises and falls, and combines with the connecting spring 51 to connect the cover plate 6 and the valve cover 8 as a whole, and cooperates with the travel switch to control the start and stop of the hollow cup motor 43, so as to avoid excessive extrusion causing damage to the sealing rubber ring 87 or insufficient sealing force to achieve the sealing effect.

[0033] Further, such as Figure 5 , Figure 6 As shown, a temperature maintaining mechanism is provided at the bottom of the valve cover 8, and the temperature maintaining mechanism includes a friction plate 7 rotatably mounted on the outer ring of the valve cover 8, an inner ring of the friction plate 7 is provided with an annular matching groove 70, matching blocks 71 are evenly provided on the outer side of the valve cover 8, and the matching blocks 71 are sealed and connected to the valve cover 8 through sealing bolts 72, a friction gasket 73 is provided on the side where the friction plate 7 and the valve cover 8 contact each other, an outer gear ring 74 is provided on the outer side of the friction plate 7, and a driving motor 75 is fixedly provided at the bottom of the lower sealing groove 21, and the driving motor 75 is connected to a driving gear 76, and the driving gear 76 and the outer gear ring 74 are meshed with each other.

[0034] Specifically, by arranging a friction plate 7 on the outer ring of the valve cover 8, the friction plate 7 is driven to rotate on the surface of the valve cover 8 to generate heat by friction in combination with the drive motor 75, the drive gear 76 and the outer gear ring 74, so that heat is also generated at the bottom of the valve cover 8, thereby ensuring that the temperatures on both sides of the valve cover 8 change synchronously, avoiding deformation of the valve cover 8 caused by excessive temperature difference on both sides of the valve cover 8, and ensuring that the valve cover 8 can be reliably combined with the sealing rubber ring 87 for sealing before and after lifting.

[0035] Furthermore, the sum of the tooth thickness of the outer gear ring 74 and the tooth thickness of the driving gear 76 is equal to the lifting stroke of the push rod 49.

[0036] Specifically, when the valve cover 8 is lifted and lowered by the transmission mechanism, it will synchronously drive the friction plate 7 to lift and lower. In order to ensure the meshing state between the driving gear 76 and the outer gear ring 74 before and after lifting, the sum of the tooth thickness of the driving gear 76 and the outer gear ring 74 needs to be equal to the lifting stroke of the push rod 49.

[0037] Further, such as Figure 8 As shown, the outer ring of the friction plate 7 is evenly provided with connecting bent rods 92, the end of the connecting bent rod 92 is provided with a friction head 93, a rubber covering ring 91 is provided between the lower sealing groove 21 and the sealing groove 9, and the friction head 93 is installed in contact with the outer side wall of the rubber covering ring 91.

[0038] Specifically, in order to further ensure the temperature of the sealing rubber ring 87 in the sealing groove 9, a rubber covering ring 91 is arranged on the outer side of the sealing groove 9, and at the same time, a connecting bent rod 92 and a friction head 93 are installed on the outer side of the friction plate 7. When the friction plate 7 rotates, the friction head 93 is driven to rotate and rub on the outer side of the rubber covering ring 91 to generate heat, thereby ensuring the temperature of the sealing groove 9, and further ensuring a reliable seal between the sealing rubber ring 87 and the sealing groove 9.

[0039] The working principle of the embodiment of the present invention is: like Figure 1-Figure 8As shown, the valve cover 8 is fixedly installed by the connecting plate strip 1, and the upper sealing groove 20 and the lower sealing groove 21 and the sealing gasket 22 on both sides of the connecting plate strip 1 are sealed and installed, so that a sealing control area is formed on both sides of the connecting plate strip 1. The valve cover 8 is driven to rise and fall by the transmission mechanism, thereby driving the sealing rubber ring 87 to move in the sealing groove 9, and changing the sealing state between the valve cover 8 and the sealing groove 9. By setting a heating film 2 80 on the surface of the valve cover 8, the surface temperature of the valve cover 8 is maintained, and the heat is evenly distributed to the entire surface of the valve cover 8 by combining the blower 83, the spiral tube 81, and the inclined nozzle 84, so as to keep the temperature of the valve cover 8 uniform. At the same time, the edge of the covering plate 6 extends to the inner circle of the sealing groove 9, and the air with heat is discharged through the air outlet groove 60. When discharged, the air carrying heat forms a vortex at the position of the sealing groove 9, and heats the inner side of the sealing groove 9 and the sealing rubber ring 87, so as to keep the sealing rubber ring 87 at a constant temperature, and avoid deformation of the sealing rubber ring 87 due to too low or too high temperature, which affects the sealing effect. The temperature of the entire valve is collected through the temperature sensor. When the temperature exceeds the set threshold, the heating film 1 41 and the heating film 2 80 are powered on in combination with the electronic control system board 42 for heating, so as to keep the entire valve within the set temperature threshold range. The hollow cup motor 43 and the driving gear 44 and the driven gear 45 control the rotation of the screw rod 48, driving the push rod 49 to move up and down along the motor seat 3, thereby driving the cover plate 6 and the valve cover 8 to move up and down, and controlling the on and off of the valve. The outer side of the push rod 49 and the motor seat 3 are non-circularly connected, and the screw rod 48 drives the push rod 49 to be plugged into the motor seat 3 when it rotates. When the push rod 49 is lifted or lowered, it drives the spring seat 5 to rise and fall synchronously, and the cover plate 6 and the valve cover 8 are connected as a whole in combination with the connecting spring 51, and the start and shut down of the hollow cup motor 43 are controlled in conjunction with the travel switch, so as to avoid excessive extrusion causing damage to the sealing rubber ring 87 or insufficient sealing force to achieve the sealing effect. By arranging the friction plate 7 on the outer ring of the valve cover 8, the friction plate 7 is driven to rotate on the surface of the valve cover 8 by the driving motor 75, the driving gear 76 and the outer gear ring 74 to generate heat by friction, so that the bottom of the valve cover 8 also generates heat, ensuring that the temperature on both sides of the valve cover 8 changes synchronously, avoiding the deformation of the valve cover 8 caused by the excessive temperature difference on both sides of the valve cover 8, and ensuring that the valve cover 8 can be reliably combined with the sealing rubber ring 87 for sealing before and after lifting. In order to further ensure the temperature of the sealing rubber ring 87 in the sealing groove 9, a rubber cover ring 91 is arranged on the outside of the sealing groove 9, and a connecting crank rod 92 and a friction head 93 are installed on the outside of the friction plate 7. When the friction plate 7 rotates, the friction head 93 is driven to rotate and rub on the outside of the rubber cover ring 91 to generate heat, thereby ensuring the temperature of the sealing groove 9, and then ensuring the reliable sealing between the sealing rubber ring 87 and the sealing groove 9.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Any reference numeral in a claim shall not be regarded as limiting the claim involved.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An airbag valve with temperature control, comprising a connecting plate strip (1) for fixed installation, the connecting plate strip (1) being connected to a valve seat body (2), characterized in that: An upper sealing groove (20) and a lower sealing groove (21) are respectively provided on both sides of the valve seat body (2), and sealing gaskets (22) are provided in the upper sealing groove (20) and the lower sealing groove (21), and the upper sealing groove (20) and the lower sealing groove (21) are sealed and installed between bolts and the connecting plate strip (1), and a motor seat (3) is fixedly provided on the inner ring of the lower sealing groove (21), and a transmission mechanism is installed on the motor seat (3), and a sealing groove (9) is provided at the bottom of the inner ring of the lower sealing groove (21), and a welding ring (90) is provided between the sealing groove (9) and the lower sealing groove (21), and a valve cover (8) is installed in the sealing groove (9), and a sealing rubber ring (87) is provided between the sealing groove (9) and the valve cover (8), and the center of the valve cover (8) is connected to the transmission mechanism; A covering plate (6) is arranged on the upper side of the valve cover (8), connecting columns (82) are evenly arranged between the covering plate (6) and the valve cover (8), a spiral tube (81) is arranged between the covering plate (6) and the valve cover (8), and inclined nozzles (84) are evenly arranged on the spiral tube (81), a heating film 2 (80) is attached to the upper surface of the valve cover (8), a blower (83) is arranged on the covering plate (6), and the blower (83) is connected to the spiral tube (81), the edge of the covering plate (6) is installed in contact with the outer side of the sealing groove (9), and the contact portion between the covering plate (6) and the sealing groove (9) is evenly provided with air outlet grooves (60).

2. The airbag valve with temperature control according to claim 1, characterized in that: The transmission mechanism comprises a motor housing (40), a heat preservation cotton (4) is arranged on the outside of the motor housing (40), a heating film (41) is arranged inside the motor housing (40), a temperature sensor is arranged on the outside of the heat preservation cotton (4), an electric control system board (42) is arranged on the inside of the motor housing (40), the temperature sensor is electrically connected to the electric control system board (42), a coreless motor (43) is fixedly arranged inside the motor housing (40), and the coreless motor (43) is connected to a driving gear (44). The motor seat (3) is provided with a connecting sleeve (46), a push rod (49) is provided in the connecting sleeve (46), the push rod (49) is plugged into the motor seat (3), a screw rod (48) is threadedly connected to the inner side of the push rod (49), a bearing (47) is provided between the screw rod (48) and the connecting sleeve (46), a driven gear (45) is provided on the top of the screw rod (48), the driving gear (44) and the driven gear (45) are meshed with each other, and the push rod (49) is connected to the cover plate (6).

3. The airbag valve with temperature control according to claim 2, characterized in that: The end of the push rod (49) is connected to a spring seat (5), the edge of the spring seat (5) is evenly rotatably mounted with a connecting spring (51), the connecting spring (51) is rotatably mounted between the covering plate (6), a matching rod (52) is arranged at the center of the spring seat (5), a matching seat (85) is arranged at the center of the valve cover (8), the matching rod (52) and the matching seat (85) are plugged together, and a travel switch is arranged between the push rod (49) and the connecting sleeve (46).

4. The airbag valve with temperature control according to claim 1, characterized in that: A temperature maintaining mechanism is provided at the bottom of the valve cover (8), the temperature maintaining mechanism comprising a friction plate (7) rotatably mounted on the outer ring of the valve cover (8), the inner ring of the friction plate (7) being provided with an annular matching groove (70), matching blocks (71) being evenly provided on the outer side of the valve cover (8), the matching blocks (71) being sealedly connected to the valve cover (8) via sealing bolts (72), a friction gasket (73) being provided on the side where the friction plate (7) and the valve cover (8) are in contact with each other, an outer gear ring (74) being provided on the outer side of the friction plate (7), a driving motor (75) being fixedly provided at the bottom of the lower sealing groove (21), the driving motor (75) being connected to a driving gear (76), the driving gear (76) being meshed with the outer gear ring (74).

5. The airbag valve with temperature control according to claim 4, characterized in that: The sum of the tooth thickness of the outer gear ring (74) and the tooth thickness of the driving gear (76) is equal to the lifting stroke of the push rod (49).

6. The airbag valve with temperature control according to claim 5, characterized in that: The outer ring of the friction plate (7) is evenly provided with connecting bent rods (92), the end of the connecting bent rod (92) is provided with a friction head (93), a rubber covering ring (91) is provided between the lower sealing groove (21) and the sealing groove (9), and the friction head (93) is installed in contact with the outer side wall of the rubber covering ring (91).

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