Gas circuit control device and vehicle

Abstract

The utility model discloses a gas circuit control device and a vehicle. The gas circuit control device comprises a valve group, the valve group is provided with an air inlet, an inflation hole and an exhaust hole, the air inlet is used for communicating with an inflation device, the inflation hole is used for communicating with the air bag, and the exhaust hole is used for communicating with an air extractor; the valve group has a first working state and a second working state which can be switched; when the valve bank is in a first working state, the air inlet hole and the inflation hole are communicated and are both disconnected from the exhaust hole; and when the valve bank is in a second working state, the exhaust hole and the inflation hole are communicated, and the exhaust hole and the inflation hole are both disconnected from the air inlet. When the valve group is in the first working state, the inflating device can inflate the air bag so that the air bag can expand and bulge. And when the valve group is in the second working state, the air exhaust device can exhaust air from the air bag to exhaust air in the air bag, so that the air exhaust effect of the air bag can be improved, and air residues in the air bag are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive parts, in particular to a gas circuit control device and a vehicle. Background Art

[0002] In order to improve the riding comfort, the seats of vehicles adopt adaptive support technology. The adaptive support technology mainly means that corresponding air bags are installed on the seats. During use, the air bags can be inflated through an inflation device, and the air bags bulge to support the occupants.

[0003] However, in the prior art, after the air bag deflates, there is still a large amount of gas remaining in the air bag, resulting in that the air pressure detection device in the air bag cannot accurately detect the human pressure, and thus the air pressure for the air bag to adapt to the comfortable sitting posture of the human body cannot be accurately calculated. Summary of the Utility Model

[0004] The embodiments of the utility model provide a muffler, a seat and a vehicle, aiming at solving the problem that there is still a large amount of gas remaining in the air bag after the air bag deflates in the prior art.

[0005] The embodiments of the utility model provide a gas circuit control device for connecting an inflation device, an air extraction device and an air bag, including a valve group; the valve group has an air inlet hole, an inflation hole and an exhaust hole. The air inlet hole is used to communicate with the inflation device, the inflation hole is used to communicate with the air bag, and the exhaust hole is used to communicate with the air extraction device; the valve group has a switchable first working state and a second working state; when the valve group is in the first working state, the air inlet hole and the inflation hole are conducted, and both the air inlet hole and the inflation hole are disconnected from the exhaust hole; when the valve group is in the second working state, the exhaust hole and the inflation hole are conducted, and both the exhaust hole and the inflation hole are disconnected from the air inlet hole.

[0006] Optionally, the valve group includes a first inflation valve and a pressure maintaining valve; the first inflation valve has the air inlet hole, the inflation hole and a first hole, and the pressure maintaining valve has a second hole and the exhaust hole; the first hole is communicated with the second hole; the first inflation valve has a switchable inflation state and a closed state, and the pressure maintaining valve has a switchable pressure maintaining state and a pressure relief state; when the first inflation valve is in the inflation state, the air inlet hole and the inflation hole are conducted, and both the air inlet hole and the inflation hole are disconnected from the first hole; when the first inflation valve is in the closed state, the first hole and the inflation hole are conducted, and both the first hole and the inflation hole are disconnected from the air inlet hole; when the pressure maintaining valve is in the pressure maintaining state, the second hole and the exhaust hole are disconnected; when the pressure maintaining valve is in the pressure relief state, the second hole and the exhaust hole are conducted.

[0007] Optionally, a plurality of the first inflation valves and the pressure maintaining valves are provided and correspond to each other one by one; an exhaust first hole of the first inflation valve communicates with an input second hole of the corresponding pressure maintaining valve.

[0008] Optionally, the gas path control device further includes a support base; the first inflation valve and the pressure maintaining valve are both connected to the support base; the support base has an inflation channel and an exhaust channel; the intake holes of the first inflation valves all communicate with the inflation channel; the exhaust holes of the pressure maintaining valves all communicate with the exhaust channel; the inflation channel is used to communicate with the inflation device, and the exhaust channel is used to communicate with the air extraction device.

[0009] Optionally, an accommodation cavity is provided in the support base, and the pressure maintaining valves are all located in the accommodation cavity; a part of the first inflation valve is located in the accommodation cavity, and another part of the first inflation valve is located outside the support base to connect the airbag.

[0010] Optionally, the support base includes a first housing and a second housing, the first housing and the second housing are connected and enclose to form the accommodation cavity; a first notch is provided on a surface of the first housing close to the second housing, and the first inflation valve extends out of the support base from the first notch; alternatively, a second notch is provided on a surface of the second housing close to the first housing, and the first inflation valve extends out of the support base from the second notch; alternatively, a first notch is provided on a surface of the first housing close to the second housing, a second notch is provided on a surface of the second housing close to the first housing, and the first notch and the second notch communicate to form an avoidance window, and the first inflation valve extends out of the support base from the avoidance window.

[0011] Optionally, a first mounting hole is provided on a surface of the first housing close to the second housing, and the first mounting hole is used to cooperate with the second housing to form the accommodation cavity; a first boss is provided on the bottom surface of the first mounting hole, and the first inflation valve is connected to a surface of the first boss close to the second housing; a first communication hole is provided on a surface of the first boss close to the second housing, and the first communication hole communicates with the inflation channel; the intake hole communicates with the inflation channel from the first communication hole; a second boss is provided on the bottom surface of the first mounting hole, and the first boss and the second boss are arranged at intervals; the pressure maintaining valve is connected to a surface of the second boss close to the second housing; a second communication hole is provided on a surface of the second boss close to the second housing, and the second communication hole communicates with the exhaust channel; the exhaust hole communicates with the exhaust channel from the second communication hole.

[0012] Optionally, the inflation channel forms a first opening on the outer surface of the support seat, and the first opening is used to connect the inflation device; the exhaust channel forms a second opening on the outer surface of the support seat, and the second opening is used to connect the air extraction device; the first opening and the second opening are respectively located on opposite sides of the support seat.

[0013] Optionally, the valve group also includes a second inflation valve; the second inflation valve has a third hole, a fourth hole and a fifth hole; the third hole is used to connect to the inflation device, the fourth hole is used to connect to the air bag, and the fifth hole is used to connect to the vacuum device; the second inflation valve has a switchable first state and a second state; when the second inflation valve is in the first state, the third hole and the fourth hole are connected, and the third hole and the fourth hole are both disconnected from the fifth hole; when the second inflation valve is in the second state, the fifth hole and the fourth hole are connected, and the fifth hole and the fourth hole are both disconnected from the third hole.

[0014] An embodiment of the utility model also provides a vehicle, comprising a seat, an air bag, an inflation device, an air suction device and an air path control device as described in any one of the above; the air bag is connected to the seat; the inflation device is connected to the air inlet, the air bag is connected to the inflation hole, and the air suction device is connected to the exhaust hole.

[0015] In the air path control device and vehicle provided by the embodiment of the utility model, when the valve group is in the first working state, the inflator can inflate the air bag to make the air bag expand and bulge. At this time, the air inlet and the inflator hole are both disconnected from the exhaust hole, so that the inflator can prevent the output of gas and the gas in the air bag from leaking from the exhaust hole, thereby improving the inflation effect of the air bag.

[0016] When the valve group is in the second working state, the air extraction device can extract air from the air bag to discharge the gas in the air bag. At this time, the inflation hole is disconnected from the air inlet hole, which can improve the exhaust effect of the air bag and reduce the residual gas in the air bag. At the same time, the exhaust hole is disconnected from the air inlet hole, which can prevent the air extraction device from extracting air from the inflation device, which can also improve the exhaust effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1It is a schematic diagram showing the cooperation of the gas path control device, inflation device, air extraction device and airbag provided by an embodiment of the present utility model;

[0019] Figure 2 It is the gas path schematic diagram of the valve group provided by an embodiment of the present utility model;

[0020] Figure 3 It is the structural schematic diagram of the gas path control device provided by an embodiment of the present utility model;

[0021] Figure 4 It is Figure 3 the sectional view taken along the A-A direction in

[0022] Figure 5 It is Figure 3 the sectional view taken along the B-B direction in

[0023] Figure 6 It is the structural schematic diagram of the first housing provided by an embodiment of the present utility model;

[0024] Figure 7 It is the structural schematic diagram of the second housing provided by an embodiment of the present utility model;

[0025] Figure 8 It is the structural schematic diagram at the valve group provided by an embodiment of the present utility model.

[0026] Reference signs in the specification drawings:

[0027] 10. Gas path control device; 20. Inflation device; 30. Air extraction device; 40. Airbag;

[0028] 1. Valve group; a. Intake hole; b. Inflation hole; c. Exhaust hole; d. First hole; e. Second hole; 11. First inflation valve; 12. Pressure maintaining valve; 13. Second inflation valve;

[0029] 2. Support seat; 21. Inflation channel; 211. First opening; 22. Exhaust channel; 221. Second opening; 23. Accommodation cavity; 24. First housing; 241. First notch; 242. First mounting hole; 25. Second housing; 251. Second notch; 252. Second mounting hole; 26. First boss; 261. First communication hole; 27. Second boss; 271. Second communication hole. Detailed implementation manners

[0030] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0031] In the description of the present invention, it is necessary to understand that the terms "length", "width", "thickness", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1 and Figure 2 As shown, in one embodiment, the air circuit control device 10 is used to connect the inflation device 20, the exhaust device 30 and the airbag 40; wherein, the inflation device 20 can inflate the airbag 40 through the air circuit control device 10, so that the airbag 40 can support the occupant; the exhaust device 30 can exhaust the airbag 40 through the air circuit control device 10, so as to reduce the residual gas in the airbag 40 after the airbag 40 is deflated.

[0034] Among them, the air path control device 10 includes a valve group 1; the valve group 1 has an air inlet a, an inflation hole b and an exhaust hole c, the air inlet a is used to connect to the inflation device 20, the inflation hole b is used to connect to the air bag 40, and the exhaust hole c is used to connect to the air extraction device 30; the valve group 1 has a switchable first working state and a second working state; when the valve group 1 is in the first working state, the air inlet a and the inflation hole b are connected, and the air inlet a and the inflation hole b are both disconnected from the exhaust hole c; when the valve group 1 is in the second working state, the exhaust hole c and the inflation hole b are connected, and the exhaust hole c and the inflation hole b are both disconnected from the air inlet a.

[0035] Among them, "the air inlet a and the air charging hole b are both disconnected from the exhaust hole c" means: the air inlet a is not connected to the exhaust hole c, and the air charging hole b is not connected to the exhaust hole c.

[0036] “The exhaust hole c and the charging hole b are both disconnected from the air inlet hole a” means that the exhaust hole c is not connected to the air inlet hole a, and the charging hole b is not connected to the air inlet hole a.

[0037] When the valve group 1 is in the first working state, the inflation device 20 can inflate the airbag 40 so that the airbag 40 expands and bulges. At this time, both the air inlet hole a and the inflation hole b are disconnected from the exhaust hole c, which can prevent the gas output by the inflation device 20 and the gas in the airbag 40 from leaking from the exhaust hole c and improve the inflation effect of the airbag 40.

[0038] When the valve group 1 is in the second working state, the air extraction device 30 can extract the air from the airbag 40 to discharge the gas in the airbag 40. At this time, the inflation hole b is disconnected from the air inlet hole a, which can improve the exhaust effect of the airbag 40 and reduce the gas residue in the airbag 40. At the same time, the exhaust hole c is disconnected from the air inlet hole a, which can prevent the air extraction device 30 from extracting air from the inflation device 20, and this can also improve the air extraction effect.

[0039] As Figure 2 shown, in an embodiment, the valve group 1 includes a first inflation valve 11 and a pressure maintaining valve 12; the first inflation valve 11 has an air inlet hole a, an inflation hole b and a first hole d, and the pressure maintaining valve 12 has a second hole e and an exhaust hole c; the first hole d is communicated with the second hole e; the first inflation valve 11 has a switchable inflation state and a closed state, and the pressure maintaining valve 12 has a switchable pressure maintaining state and a pressure relief state; when the first inflation valve 11 is in the inflation state, the air inlet hole a and the inflation hole b are conducted, and both the air inlet hole a and the inflation hole b are disconnected from the first hole d; when the first inflation valve 11 is in the closed state, the first hole d and the inflation hole b are conducted, and both the first hole d and the inflation hole b are disconnected from the air inlet hole a; when the pressure maintaining valve 12 is in the pressure maintaining state, the second hole e and the exhaust hole c are disconnected; when the pressure maintaining valve 12 is in the pressure relief state, the second hole e and the exhaust hole c are conducted.

[0040] Among them, when the valve group 1 is in the first working state, the first inflation valve 11 is in the inflation state and the pressure maintaining valve 12 is in the pressure maintaining state. When the valve group 1 is in the second working state, the first inflation valve 11 is in the closed state and the pressure maintaining valve 12 is in the pressure relief state.

[0041] In addition, when the first inflation valve 11 is in the inflation state, the pressure maintaining valve 12 can also be in the pressure relief state. At this time, the valve group 1 is in the third working state; when the first inflation valve 11 is in the closed state and the pressure maintaining valve 12 is in the pressure maintaining state, at this time, the valve group 1 is in the fourth working state.

[0042] By setting the first inflation valve 11 and the pressure maintaining valve 12 to realize the functions of the valve group 1, it is not only convenient to set the valve group 1, but also enables the valve group 1 to have more working states to achieve other control functions.

[0043] Among them, the air inlet hole a can be connected to the inflation device 20 through a corresponding air pipe, or the first inflation valve 11 is directly connected to the inflation device 20 so that the air inlet hole a can be directly connected to the inflation device 20. The inflation hole b can be connected to the airbag 40 through a corresponding air pipe, or the first inflation valve 11 is directly connected to the airbag 40 so that the inflation hole b can be directly connected to the airbag 40. The exhaust hole c can be connected to the air extraction device through a corresponding air pipe, or the first inflation valve 11 is directly connected to the air extraction device 30 so that the exhaust hole c can be directly connected to the air extraction device 30. The first hole d can be connected to the second hole e through a corresponding air pipe, or the first inflation valve 11 is directly connected to the pressure maintaining valve 12 so that the first hole d can be directly connected to the second hole e.

[0044] In one embodiment, the first inflation valve 11 can be a two-position three-way electromagnetic reversing valve, and the pressure maintaining valve 12 can be a two-position two-way electromagnetic reversing valve. Of course, in other embodiments, the first inflation valve 11 and the pressure maintaining valve 12 can also adopt other valves that can achieve their respective functions, and these valves can all be existing designs.

[0045] As Figure 2 shown, in one embodiment, there are multiple first inflation valves 11 and pressure maintaining valves 12, and they are in one-to-one correspondence; the exhaust first hole d of the first inflation valve 11 is connected to the input second hole e of the corresponding pressure maintaining valve 12. "Multiple" means greater than or equal to two, and the meaning of the word "multiple" is the same in each embodiment and will not be elaborated later.

[0046] Among them, the inflation hole b of each first inflation valve 11 can be connected to an airbag 40, and the inflation device 20 can inflate multiple airbags 40 through the air path control device 10 and can extract air from multiple airbags 40 through the air extraction device 30.

[0047] As Figures 3 to 8 shown, in one embodiment, the air path control device 10 further includes a support base 2; the first inflation valve 11 and the pressure maintaining valve 12 are both connected to the support base 2; the support base 2 has an inflation channel 21 and an exhaust channel 22; the air inlet holes a of the first inflation valves 11 are all connected to the inflation channel 21; the exhaust holes c of the pressure maintaining valves 12 are all connected to the exhaust channel 22; the inflation channel 21 is used to connect to the inflation device 20, and the exhaust channel 22 is used to connect to the air extraction device 30.

[0048] When inflating the airbag 40, the inflation device 20 inflates the inflation channel 21, and then the gas will enter each first inflation valve 11 from the inflation channel 21 and finally enter each airbag 40, which can simplify the air path setting and reduce the volume, weight and cost of the air path control device 10.

[0049] Similarly, when the airbag 40 exhausts, the air extraction device 30 can extract air from each airbag 40 through the exhaust passage 22, which can also simplify the air circuit setting and reduce the volume, weight and cost of the air circuit control device 10.

[0050] It should be understood that the support base 2 is provided with holes for connecting the inflation device 20 so that the inflation device 20 can inflate the inflation passage 21. Among them, the hole can be directly formed by extending the inflation passage 21 to the outer surface of the support base 2; similarly, the support base 2 is provided with holes for connecting the air extraction device 30 so that the air extraction device 30 can extract the air inflated in the exhaust passage 22. Among them, the hole can be directly formed by extending the exhaust passage 22 to the outer surface of the support base 2.

[0051] The inflation passage 21 can be connected to the inflation device 20 through a corresponding air pipe, or the support base is directly connected to the inflation device 20 so that the inflation passage 21 can be directly connected to the inflation device 20. The exhaust passage 22 can be connected to the air extraction device through a corresponding air pipe, or the support base is directly connected to the air extraction device 30 so that the exhaust passage 22 can be directly connected to the air extraction device 30. In addition, the inflation passage 21 and the intake hole a can be connected through an air pipe or directly connected. The exhaust passage 22 and the exhaust hole c can be connected through an air pipe or directly connected.

[0052] As Figure 4 and Figure 5 shown, in an embodiment, the support base 2 is provided with an accommodation cavity 23, and the pressure maintaining valves 12 are all located in the accommodation cavity 23; a part of the first inflation valve 11 is located in the accommodation cavity 23, and the other part of the first inflation valve 11 is located outside the support base 2 to connect the airbag 40. In this way, the support base 2 can shield and protect the first inflation valve 11 and the pressure maintaining valve 12, effectively avoiding the two from being collided by foreign objects.

[0053] As Figure 4 and Figure 5 shown, in an embodiment, the support base 2 includes a first housing 24 and a second housing 25. The first housing 24 and the second housing 25 are connected and enclose to form the accommodation cavity 23; the surface of the first housing 24 close to the second housing 25 is provided with a first notch 241, and the surface of the second housing 25 close to the first housing 24 is provided with a second notch 251. The first notch 241 and the second notch 251 communicate to form an avoidance window, and the first inflation valve 11 extends out of the support base 2 from the avoidance window.

[0054] After assembly, both the first notch 241 and the second notch 251 penetrate the outer surface and the inner surface of the support base 2, where the inner surface of the support base 2 encloses to form the accommodation cavity 23.

[0055] As Figure 6 andFigure 7 As shown in the figure, a first mounting hole 242 is provided on the surface of the first housing 24 close to the second housing 25, and a second mounting hole 252 is provided on the surface of the second housing 25 close to the first housing 24. The first mounting hole 242 is used to cooperate with the second housing 25 to form a receiving cavity 23; the second mounting hole 252 is used to cooperate with the first housing 24 to form a receiving cavity 23. Specifically, after assembly, the first mounting hole 242 and the second mounting hole 252 communicate with each other to form the receiving cavity 23. A first notch 241 penetrates through the outer surface and the inner surface of the first housing 24, and a second notch 251 penetrates through the outer surface and the inner surface of the second housing 25.

[0056] Wherein, the inner surface of the first housing 24 encloses to form the first mounting hole 242, and the inner surface of the second housing 25 encloses to form the second mounting hole 252.

[0057] In addition, a part of the outer surface of the support base 2 belongs to at least a part of the outer surface of the first housing 24, and another part of the outer surface of the support base 2 belongs to at least a part of the outer surface of the second housing 25; a part of the inner surface of the support base 2 belongs to at least a part of the inner surface of the first housing 24, and another part of the inner surface of the support base 2 belongs to at least a part of the inner surface of the second housing 25.

[0058] In one embodiment, the first mounting hole 242 is a rectangular hole, which is a cuboid space. In addition, the second mounting hole 252 is a rectangular hole, which is a cuboid space. Of course, the first mounting hole 242 and the second mounting hole 252 can also be holes of other shapes, such as round holes, etc.

[0059] In addition, when the first mounting hole 242 is a rectangular hole, in the width direction of the first mounting hole 242, the first notch 241 is located on one side of the first housing 24, and the first notch 241 penetrates through the first housing 24 along the width direction of the first mounting hole 242; in the width direction of the first mounting hole 242, the second notch 251 is located on one side of the second housing 25, and the second notch 251 penetrates through the second housing 25 along the width direction of the first mounting hole 242.

[0060] As Figure 6 shown, in one embodiment, a first boss 26 is provided on the bottom surface of the first mounting hole 242, and the first inflation valve 11 is connected to the surface of the first boss 26 close to the second housing 25; a first communication hole 261 is provided on the surface of the first boss 26 close to the second housing 25, and the first communication hole 261 communicates with the inflation channel 21; the air inlet hole a communicates with the inflation channel 21 from the first communication hole 261. This can prevent the first inflation valve 11 from contacting the bottom surface of the first mounting hole 242, which is beneficial to moisture-proof, and is also beneficial to reducing the impact force received by the first inflation valve 11 when the first housing 24 is collided.

[0061] In addition, the first boss 26 is used to enclose and form the inflation channel 21. At this time, it is equivalent to thickening the area of the first housing 24 for forming the inflation channel 21, thus making it more convenient to set up the inflation channel 21.

[0062] In addition, the number of the first communication holes 261 is multiple, the first communication holes 261 correspond to the first inflation valves 11 one by one, and the first communication holes 261 are communicated with the air inlet holes a of the corresponding first inflation valves 11.

[0063] In one embodiment, the first boss 26 can extend to the side wall of the first mounting hole 242. For example, when the first mounting hole 242 is a rectangular hole, at both ends of the first mounting hole 242 in the length direction, the first boss 26 can extend to the side wall of the first mounting hole 242.

[0064] As Figure 6 shown, a second boss 27 is provided on the bottom surface of the first mounting hole 242, and the first boss 26 and the second boss 27 are arranged at intervals; the pressure maintaining valve 12 is connected to the surface of the second boss 27 close to the second housing 25; a second communication hole 271 is provided on the surface of the second boss 27 close to the second housing 25, and the second communication hole 271 is communicated with the exhaust channel 22; the exhaust hole c is communicated with the exhaust channel 22 from the second communication hole 271. This can prevent the pressure maintaining valve 12 from contacting the bottom surface of the first mounting hole 242, which is beneficial to moisture protection and is also beneficial to reducing the impact force on the pressure maintaining valve 12 when the first housing 24 is collided.

[0065] In addition, the second boss 27 is used to enclose and form the exhaust channel 22. At this time, it is equivalent to thickening the area of the first housing 24 for forming the exhaust channel 22, thus making it more convenient to set up the exhaust channel 22.

[0066] In addition, the first boss 26 and the second boss 27 can be arranged at intervals along the width direction of the first mounting hole 242.

[0067] Meanwhile, the number of the second communication holes 271 is multiple, the second communication holes 271 correspond to the pressure maintaining valves 12 one by one, and the second communication holes 271 are communicated with the exhaust holes c of the corresponding pressure maintaining valves 12.

[0068] In one embodiment, the second boss 27 can extend to the side wall of the first mounting hole 242. For example, when the first mounting hole 242 is a rectangular hole, at both ends of the first mounting hole 242 in the length direction, the second boss 27 can extend to the side wall of the first mounting hole 242.

[0069] In one embodiment, the first housing 24, the first boss 26 and the second boss 27 are of an integrally formed structure.

[0070] As Figure 4 andFigure 5 As shown, in one embodiment, the inflation channel 21 forms a first opening 211 on the outer surface of the support seat 2, and the first opening 211 is used to connect the inflation device 20; the exhaust channel 22 forms a second opening 221 on the outer surface of the support seat 2, and the second opening 221 is used to connect the exhaust device 30; the first opening 211 and the second opening 221 are respectively located on opposite sides of the support seat 2.

[0071] In this way, when the inflation device 20 and the air extraction device 30 are connected, interference between the inflation device 20 and the air extraction device 30 can be effectively avoided, thereby facilitating assembly.

[0072] The arrangement directions of the first openings 211 and the second openings 221 , the arrangement directions of the inflation channel 21 and the exhaust channel 22 , and the arrangement directions of the first shell 24 and the second shell 25 intersect in pairs. Specifically, the three may be perpendicular in pairs.

[0073] In addition, when the first mounting hole 242 is a rectangular hole, the arrangement direction of the first opening 211 and the second opening 221 can be the length direction of the first mounting hole 242, the arrangement direction of the inflation channel 21 and the exhaust channel 22 can be the width direction of the first mounting hole 242, and the arrangement direction of the first shell 24 and the second shell 25 can be the depth direction of the first mounting hole 242.

[0074] In addition, the number of the first opening 211 and the number of the second opening 221 may be one.

[0075] like Figure 8 As shown, in one embodiment, the valve group 1 further includes a second inflation valve 13; the second inflation valve 13 has a third hole, a fourth hole and a fifth hole; the third hole is used to connect to the inflation device 20, the fourth hole is used to connect to the air bag 40, and the fifth hole is used to connect to the exhaust device 30; the second inflation valve 13 has a switchable first state and a second state; when the second inflation valve 13 is in the first state, the third hole and the fourth hole are connected, and the third hole and the fourth hole are both disconnected from the fifth hole; when the second inflation valve 13 is in the second state, the fifth hole and the fourth hole are connected, and the fifth hole and the fourth hole are both disconnected from the third hole. When the second inflation valve 13 is in the first state, the air bag 40 can be inflated by the inflation device 20; when the second inflation valve 13 is in the second state, the air bag 40 can be exhausted by the exhaust device 30.

[0076] The air bag 40 connected to the second inflation valve 13 does not need to maintain pressure, so the second inflation valve 13 does not cooperate with the pressure maintaining valve 12.

[0077] In addition, the structure of the second inflation valve 13 may be the same as that of the first inflation valve 11 .

[0078] In addition, the second inflation valve 13 is also located in the accommodating chamber 23, the third hole is connected to the inflation device 20 through the inflation channel, one end of the fourth hole extends out of the accommodating chamber 23 from the avoidance window to connect to the airbag 40, and the fifth hole is connected to the exhaust device 30 through the exhaust channel.

[0079] An embodiment of the utility model also provides a vehicle, including a seat, an air bag 40, an inflation device 20, an air extraction device 30 and an air path control device 10 described in any one of the above embodiments; the air bag 40 is connected to the seat; the inflation device 20 is connected to the air inlet a, the air bag 40 is connected to the inflation hole b, and the air extraction device 30 is connected to the exhaust hole c.

[0080] The connection method and relative position of the air bag 40 and the seat can be existing designs.

[0081] In this embodiment, the inflating device 20 and the air extraction device 30 are two independent devices. In actual scenarios, the inflating device 20 can be a device that comes with the vehicle, and the inflating device 20 can be a device in the braking system of the vehicle. In this way, in production, only the air extraction device 30 needs to be additionally provided, which can reduce costs.

[0082] It should be understood that the above-mentioned related designs can also be replaced by other methods, such as:

[0083] In other embodiments, in order to allow the first inflation valve 11 to pass through the accommodating cavity 23, only the surface of the first shell 24 close to the second shell 25 may be provided with the first notch 241, and the first inflation valve 11 may extend out of the support seat 2 from the first notch 241. In this case, the second shell 25 may not be provided with the second notch 251. Alternatively, only the surface of the second shell 25 close to the first shell 24 may be provided with the second notch 251, and the first inflation valve 11 may extend out of the support seat 2 from the second notch 251. In this case, the first shell 24 may not be provided with the first notch 241.

[0084] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. An air circuit control device, used to connect an inflator, an air extraction device and an air bag, characterized in that: Including valve group; The valve group has an air inlet hole, an air filling hole and an air exhaust hole, the air inlet hole is used to connect to the air filling device, the air filling hole is used to connect to the air bag, and the air exhaust hole is used to connect to the air extraction device; The valve group has a switchable first working state and a second working state; When the valve group is in the first working state, the air inlet hole and the air charging hole are connected, and the air inlet hole and the air charging hole are both disconnected from the air discharge hole; When the valve group is in the second working state, the exhaust hole and the inflation hole are connected, and the exhaust hole and the inflation hole are both disconnected from the air inlet hole.

2. The gas path control device according to claim 1, characterized in that: The valve group includes a first inflation valve and a pressure-maintaining valve; The first inflation valve has the air inlet hole, the inflation hole and the first hole, and the pressure-maintaining valve has the second hole and the exhaust hole; the first hole is connected to the second hole; The first inflation valve has a switchable inflation state and a closed state, and the pressure-maintaining valve has a switchable pressure-maintaining state and a pressure-releasing state; When the first inflation valve is in the inflation state, the air inlet hole and the inflation hole are connected, and the air inlet hole and the inflation hole are both disconnected from the first hole; When the first inflation valve is in the closed state, the first hole and the inflation hole are connected, and the first hole and the inflation hole are both disconnected from the air inlet hole; When the pressure-maintaining valve is in the pressure-maintaining state, the second hole and the exhaust hole are disconnected; When the pressure-maintaining valve is in the pressure-releasing state, the second hole is connected to the exhaust hole.

3. The gas path control device according to claim 2, characterized in that: The first inflation valve and the pressure-maintaining valve are provided in plurality and correspond one to one; The first hole of the first inflation valve is communicated with the second hole of the corresponding pressure maintaining valve.

4. The gas path control device according to claim 3, characterized in that: The gas path control device also includes a support seat; The first inflation valve and the pressure-maintaining valve are both connected to the support seat; The support seat has an inflation channel and an exhaust channel; The air inlet holes of each of the first inflation valves are connected to the inflation channel; The exhaust holes of each of the pressure-maintaining valves are connected to the exhaust channel; The inflation channel is used to be connected to the inflation device, and the exhaust channel is used to be connected to the air extraction device.

5. The gas path control device according to claim 4, characterized in that: The support seat is provided with an accommodating cavity, and the pressure-maintaining valves are all located in the accommodating cavity; A portion of the first inflation valve is located in the accommodating cavity, and another portion of the first inflation valve is located outside the supporting seat to connect with the airbag.

6. The gas path control device according to claim 5, characterized in that: The support seat comprises a first shell and a second shell, the first shell and the second shell are connected and enclosed to form the accommodating cavity; A first notch is provided on the surface of the first shell close to the second shell, and the first inflation valve extends out of the support seat from the first notch; or, a second notch is provided on the surface of the second shell close to the first shell, and the first inflation valve extends out of the support seat from the second notch; or, a first notch is provided on the surface of the first shell close to the second shell, and a second notch is provided on the surface of the second shell close to the first shell, the first notch and the second notch are connected to form an avoidance window, and the first inflation valve extends out of the support seat from the avoidance window.

7. The gas path control device according to claim 6, characterized in that: A first mounting hole is provided on a surface of the first shell close to the second shell, and the first mounting hole is used to cooperate with the second shell to form the accommodating cavity; A first boss is provided on the bottom surface of the first mounting hole, and the first inflation valve is connected to a surface of the first boss close to the second shell; A first communicating hole is provided on a surface of the first boss close to the second shell, and the first communicating hole is communicated with the inflation channel; The air inlet hole is connected to the air charging channel from the first communicating hole; A second boss is provided on the bottom surface of the first mounting hole, and the first boss and the second boss are spaced apart; The pressure-maintaining valve is connected to a surface of the second boss close to the second shell; A second communicating hole is provided on a surface of the second boss close to the second shell, and the second communicating hole is communicated with the exhaust passage; The exhaust hole communicates with the exhaust passage from the second communication hole.

8. The gas path control device according to claim 4, characterized in that: The inflation channel forms a first opening on the outer surface of the support seat, and the first opening is used to connect the inflation device; The exhaust passage forms a second opening on the outer surface of the support seat, and the second opening is used to connect the exhaust device; The first opening and the second opening are respectively located on two opposite sides of the support base.

9. The gas path control device according to claim 1, characterized in that: The valve group also includes a second inflation valve; The second inflation valve has a third hole, a fourth hole and a fifth hole; The third hole is used to connect to the inflation device, the fourth hole is used to connect to the air bag, and the fifth hole is used to connect to the air extraction device; The second inflation valve has a switchable first state and a switchable second state; When the second inflation valve is in the first state, the third hole is connected to the fourth hole, and the third hole and the fourth hole are both disconnected from the fifth hole; When the second inflation valve is in the second state, the fifth hole is connected to the fourth hole, and the fifth hole and the fourth hole are both disconnected from the third hole.

10. A vehicle, characterized in that: It comprises a seat, an air bag, an inflating device, an exhaust device and an air path control device as claimed in any one of claims 1 to 9; The air bag is connected to the seat; The inflation device is connected to the air inlet, the air bag is connected to the inflation hole, and the air extraction device is connected to the exhaust hole.

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