A quick lifting valve and lifting seat

Abstract

The present invention discloses a rapid lifting valve and lifting seat, and relates to the technical field of automobile seats. The lifting valve comprises a valve body, a valve core and a shell assembly. The valve body is fixedly arranged and has a pneumatic cavity. The pneumatic cavity is provided with a vent for communicating with an air bag, an exhaust port communicating with the outside and an air inlet communicating with an air pump. A slideway is provided on the outer wall of the valve body. The valve core is slidably arranged in the pneumatic cavity. The shell assembly comprises a limiter, and the shell assembly can move relative to the valve body and drive the limiter to slide in the slideway. When the limiter moves and is clamped to the first limit point of the slideway, the valve core connects the vent with the exhaust port to exhaust the air bag. When the limiter moves and is clamped to the second limit point of the slideway, the valve core connects the vent with the air inlet to inflate the air bag. The limiter slides in the slideway and is clamped with the first limit point and the second limit point, thereby limiting the displacement stroke of the shell assembly relative to the valve body, and realizing the rapid switching of the two states of the air bag.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seats, and in particular to a rapid lifting valve and a lifting seat. Background Art

[0002] When the driver and passengers need to get in and out of the vehicle quickly, the seat height of the vehicle seat can be quickly lowered to provide the driver with enough space to get on and off the vehicle quickly, which will help improve driving comfort and safety.

[0003] In the prior art, when adjusting the height of a seat, the airbag in the seat is usually inflated or deflated to achieve the height adjustment of the seat. Currently, most of them use a seesaw switch to control the inflation and deflation of the airbag, which cannot achieve rapid adjustment. On the other hand, the valve body that controls the inflation and deflation of the airbag is mostly a solenoid valve, which is expensive and easy to damage. Summary of the invention

[0004] In view of the defects existing in the prior art, the purpose of the present invention is to provide a rapid lifting valve and a lifting seat to solve the problem that the height of the seat cannot be quickly adjusted in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0006] In one aspect, the present application provides a rapid lifting valve, comprising:

[0007] A valve body is fixedly arranged and has a pneumatic cavity, wherein the pneumatic cavity is provided with a vent for communicating with the airbag, an exhaust port communicating with the outside, and an air inlet communicating with the air pump, and a slideway is provided on the outer wall of the valve body;

[0008] A valve core slidably disposed in the pneumatic cavity;

[0009] The shell assembly includes a limit member, and the shell assembly can move relative to the valve body and drive the limit member to slide in the slide. When the limit member moves and is engaged to the first limit point of the slide, the valve core connects the vent with the exhaust port to exhaust the airbag. When the limit member moves and is engaged to the second limit point of the slide, the valve core connects the vent with the air inlet to inflate the airbag.

[0010] In some optional embodiments, a fixed bracket is further included, which is sleeved on the valve body and fixedly connected to the valve body, and the slideway is provided on the fixed bracket.

[0011] In some optional embodiments, the fixing bracket includes:

[0012] A bracket body, which has a cavity for accommodating the valve body, the slideway is provided on the side wall of the bracket body, and the housing assembly is slidably connected to the bracket body;

[0013] A connecting fixing piece has one end connected to the bracket body and the other end used to connect to the seat.

[0014] In some optional embodiments, an elastic member is provided between the above-mentioned bracket body and the above-mentioned shell assembly, a V-shaped outer plate is connected to the side wall of the above-mentioned bracket body, a V-shaped inner plate is provided in the opening of the above-mentioned V-shaped outer plate, the above-mentioned V-shaped inner plate is spaced from the above-mentioned V-shaped outer plate to form the above-mentioned slideway, and the opening direction of the above-mentioned V-shaped inner plate and the above-mentioned V-shaped outer plate is opposite to the elongation direction of the above-mentioned elastic member, the V-shaped groove of the above-mentioned V-shaped inner plate is the above-mentioned first limit point, and the V-shaped groove of the above-mentioned V-shaped outer plate is the above-mentioned second limit point.

[0015] In some optional embodiments, a limit block is provided at the opening of the above-mentioned V-shaped outer plate, and the above-mentioned limit block is spaced apart from the above-mentioned V-shaped inner plate. The above-mentioned limit block includes a guide surface, which is used for sliding along the above-mentioned slideway through the above-mentioned guide surface when the above-mentioned limit member moves out of the V-shaped groove of the above-mentioned V-shaped inner plate.

[0016] In some optional embodiments, a pneumatic spring is provided between the valve core and the bottom wall of the pneumatic cavity, and a valve stem is connected to one end of the valve core away from the pneumatic spring. The valve stem extends out of the pneumatic cavity and abuts against the housing assembly.

[0017] In some optional embodiments, the housing assembly includes:

[0018] A U-shaped shell, which is covered on the valve body and can slide relative to the valve body, the valve stem extends out of the pneumatic cavity and extends toward the opening direction of the U-shaped shell, and a avoidance hole is provided at the closed end of the U-shaped shell;

[0019] A pressing portion, which is clamped with the closed end of the U-shaped shell, one end of the elastic member passes through the avoidance hole and abuts against the bracket body, and the other end abuts against the pressing portion;

[0020] The base is connected to the opening of the U-shaped shell and closes the opening. One end of the limiter is connected to the base, and the other end extends into the slideway. The end of the valve stem extending out of the pneumatic cavity abuts against the base.

[0021] In some optional embodiments, the housing assembly further includes a supporting member, one end of which is rotatably connected to the base via a torsion spring, and the other end of which is supported by the limiting member.

[0022] On the other hand, the present application also provides a lifting seat, comprising any of the above-mentioned rapid lifting valves.

[0023] In some optional embodiments, the vent is connected to the airbag through a height valve.

[0024] Compared with the prior art, the advantages of the present invention are:

[0025] By sliding the limit piece in the slideway and engaging with the first limit point and the second limit point, the relative displacement stroke of the shell assembly with respect to the valve body is limited, thereby realizing the switching of the two states of the rapid lifting valve, namely the switching of the ventilation state and the exhaust state. Therefore, the coordination between the valve body and the valve core is achieved by the movement of the shell assembly. Compared with directly setting the lifting valve as a solenoid valve, the operation is more reliable and the cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a structural schematic diagram of a rapid lifting valve of the present invention;

[0028] Figure 2 for Figure 1 Explosion diagram of

[0029] Figure 3 for Figure 1 A partial enlarged view of

[0030] Figure 4 It is a front view of a rapid lifting valve of the present invention;

[0031] Figure 5 for Figure 4 AA cross-sectional diagram of ;

[0032] Figure 6 It is a structural schematic diagram of a lifting seat of the present invention;

[0033] Figure 7 It is a connection diagram of the quick lifting valve and the height valve.

[0034] In the figure: 00, quick lifting valve; 1, valve body; 11, vent; 12, exhaust port; 13, air inlet; 14, slide; 2, valve core; 21, pneumatic spring; 22, valve stem; 3, housing assembly; 31, U-shaped housing; 311, slot; 32, pressing part; 33, base; 331, bottom plate; 332, side plate; 333, bolt; 34, supporting part; 35, limiting part; 36, elastic part; 4, fixing bracket; 41, bracket body; 411, V-shaped outer plate; 412, V-shaped inner plate; 413, limiting block; 42, connecting fixing part; 43, connecting rod; 5, height valve; 6, air inlet pipe; 7, air pipe fixing sleeve. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0036] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0037] On the one hand, if Figure 1 As shown, the present application provides a rapid lifting valve, including a valve body 1, a valve core 2 and a shell assembly 3. The shell assembly 3 moves relative to the valve body 1, driving the valve core 2 to move in the pneumatic cavity of the valve body 1, so that the valve body 1 switches between the inflation and exhaust states, thereby realizing rapid inflation and deflation of the seat airbag.

[0038] Specifically, the valve body 1 is fixedly arranged and has a pneumatic cavity, the pneumatic cavity is provided with a vent 11 for communicating with the airbag, an exhaust port 12 communicating with the outside and an air inlet 13 communicating with the air pump, and a slide 14 is provided on the outer wall of the valve body 1; the valve core 2 is slidably arranged in the pneumatic cavity; the shell assembly 3 includes a limit member 35, the shell assembly 3 can move relative to the valve body 1, and drive the limit member 35 to slide in the slide 14, when the limit member 35 moves and is clamped to the first limit point of the slide 14, the valve core 2 connects the vent 11 with the exhaust port 12 to exhaust the airbag, and when the limit member moves and is clamped to the second limit point of the slide 14, the valve core 2 connects the vent 11 with the air inlet 13 to inflate the airbag.

[0039] It can be understood that when the shell assembly 3 moves relative to the valve body 1, the limit member 35 slides in the slide 14 and engages with the first limit point and the second limit point, thereby limiting the relative displacement stroke of the shell assembly 3 relative to the valve body 1, and realizing the switching of the two states of the rapid lifting valve, namely the switching of the ventilation state and the exhaust state.

[0040] Since the cooperation between the limiter 35 and the slide 14 is utilized here, the cooperation between the valve body 1 and the valve core 2 is achieved by the movement of the housing assembly 3. Compared with directly setting the lifting valve as a solenoid valve, the operation is more reliable and the cost is lower.

[0041] It should be noted that the direction in which the housing assembly 3 moves relative to the valve body 1 is consistent with the direction in which the valve core 2 moves in the pneumatic cavity. Optionally, the valve core 2 can be connected to the housing assembly 3 so that the movement of the housing assembly 3 drives the movement of the valve core 2.

[0042] In some optional embodiments, the rapid lifting valve further comprises a fixed bracket 4 , which is sleeved outside the valve body 1 and fixedly connected to the valve body 1 , and the slideway 14 is provided on the fixed bracket 4 .

[0043] In this example, the valve body 1 is connected to the fixing bracket 4 via a connecting rod 43 .

[0044] It can be understood that the function of the fixing bracket 4 is to connect the valve body 1 with the fixing bracket on the seat. Since the fixing bracket 4 is fixedly connected to the valve body 1, the housing assembly 3, the valve body 1 and the fixing bracket 4 are connected to form a whole that can move relatively.

[0045] Furthermore, if Figure 2 As shown, the above-mentioned fixed bracket 4 includes a bracket body 41 and a connecting fixture 42, the bracket body 41 has a cavity for accommodating the above-mentioned valve body 1, and the above-mentioned slide 14 is provided on the side wall of the above-mentioned bracket body 41; the connecting fixture 42, one end of which is connected to the above-mentioned bracket body 41, and the other end is used to connect with the seat.

[0046] In this example, two connecting fixing members 42 are provided, which are respectively connected to two opposite side walls of the bracket body 41, so that the connection is more stable when the valve body 1 is fixed. The slideway 14 is arranged on the side wall of the bracket body 41. When the housing assembly 3 moves in the slidable direction of the valve core 2 relative to the whole formed by the connection of the valve body 1 and the fixing bracket 4, the limiter 35 slides in the slideway 14. The slideway 14 is arranged on the valve body 1 through the bracket body 41, which can reduce damage to the structure of the valve body 1 and facilitate installation.

[0047] In some optional embodiments, such as Figure 3As shown, an elastic member 36 is provided between the above-mentioned bracket body 41 and the above-mentioned shell assembly 3, a V-shaped outer plate 411 is connected to the side wall of the above-mentioned bracket body 41, and a V-shaped inner plate 412 is provided in the opening of the above-mentioned V-shaped outer plate 411, the above-mentioned V-shaped inner plate 412 is spaced from the above-mentioned V-shaped outer plate 411 to form the above-mentioned slide 14, and the opening direction of the above-mentioned V-shaped inner plate 412 and the above-mentioned V-shaped outer plate 411 is opposite to the elongation direction of the above-mentioned elastic member 36, the V-shaped groove of the above-mentioned V-shaped inner plate 412 is the above-mentioned first limiting point, and the V-shaped groove of the above-mentioned V-shaped outer plate 411 is the above-mentioned second limiting point.

[0048] Specifically, taking the figure as an example, when the extension direction of the elastic member 36 is upward, the openings of the V-shaped outer plate 411 and the V-shaped inner plate 412 are both facing downward, and the limit member 35 will be stuck in the V-shaped groove of the V-shaped inner plate 412 or the V-shaped groove of the V-shaped outer plate 411 under the action of the elastic force of the elastic member 36. When in use, the shell assembly 3 is pressed down to compress the elastic member 36 and the limit member 35 moves out from the opening of the V-groove of the V-shaped inner plate 412. At this time, the shell assembly 3 is released, and the shell assembly 3 moves upward under the elastic restoring force of the elastic member 36, driving the limit member 35 to move upward along the slide 14 until it is engaged with the bottom of the V-groove of the V-shaped outer plate 411, and the airbag is inflated at this time; when the shell assembly 3 is pressed down again, the elastic member 36 is compressed, and the limit member 35 moves from the bottom of the V-groove of the V-shaped outer plate 411 toward its opening along the slide 14 until it moves to the opening of the V-groove of the V-shaped inner plate 412, and the shell assembly 3 is released. The shell assembly 3 moves upward under the elastic restoring force of the elastic member 36, driving the limit member 35 to move upward until it is engaged with the bottom of the V-groove of the V-shaped inner plate 412, and the airbag is deflated at this time.

[0049] It can be seen that compared with the seesaw type switching of the control valve body state, the present application uses the elastic member 36 and the limit member 35 to slide in the slideway formed by the two V-shaped plates, thereby respectively engaging with the bottom of the V-groove of the inner and outer V-shaped plates, thereby achieving a height change in the engaging position of the limit member 35. The airbag can be quickly inflated and deflated by only pressing the shell assembly 3, and the process is more convenient and quick.

[0050] It should be noted that although the elastic member 36 is not provided, the limit member 35 can be switched between the two limit points manually, but such a setting requires that the limit member 35 can be stably engaged at the limit point. When moving from one limit point to another, a large external force is required to disengage the limit member 35 from the engaged state, which undoubtedly increases the inconvenience of the user.

[0051] In other embodiments, an arc-shaped outer groove may be provided on the side wall of the bracket body 41, and an arc-shaped inner groove may be provided at the opening of the arc-shaped outer groove, and the opening direction of the arc-shaped inner groove is the same as the opening direction of the arc-shaped outer groove, which is the extension direction of the elastic member 36. The two ends of the arc-shaped inner groove are connected to the two ends of the arc-shaped outer groove through the arc-shaped transition groove and form an integral body, thereby forming the above-mentioned slideway 14. Along the extension direction of the elastic member 36, the first limiting point and the second limiting point for the stopper 35 to be engaged are respectively provided at the top of the arc-shaped inner groove and the arc-shaped outer groove.

[0052] In this example, an outer plate and an inner plate are installed on the side wall of the bracket body 41 to form a slide 14. The advantage of this arrangement is that it avoids grooving on the bracket body 41, increasing the wall thickness of the bracket body 41 and causing structural redundancy. The slide formed by the inner plate and the outer plate has better structural stability, and the wall thickness of the slide 14 can be adjusted arbitrarily.

[0053] In some optional embodiments, a limit block 413 is provided at the opening of the above-mentioned V-shaped outer plate 411, and the above-mentioned limit block 413 is spaced apart from the above-mentioned V-shaped inner plate 412. The above-mentioned limit block 413 includes a guide surface, which is used for sliding along the above-mentioned slide 14 through the above-mentioned guide surface when the above-mentioned limit member 35 moves out of the V-shaped groove of the above-mentioned V-shaped inner plate 412.

[0054] It can be understood that the function of the limit block 413 is to prevent the limit member 35 from slipping off the opening of the V-shaped outer plate 411 and being unable to continue to slide in the slideway 14. In this example, the limit block 413 is a right triangle, and its inclined surface is the above-mentioned guide surface. When the limit member 35 moves out of the opening of the V-shaped inner plate 412, it contacts the inclined surface of the right triangle. At this time, as the shell assembly 3 continues to move downward, the limit member 35 is driven to move downward along the inclined surface and toward the inner wall of the V-shaped outer plate 411 until the limit member 35 is in contact with the bottom of the inclined surface of the right triangle and the inner wall of the V-shaped outer plate 411, and can no longer move downward. The shell assembly 3 is released, and the limit member 35 moves along the slideway 14 to the second limit point.

[0055] In other embodiments, the limit block 413 may also be an isosceles triangle, and the limit member 35 may be moved out from the two inclined surfaces of the isosceles triangle. However, the disadvantage of such a setting is that the limit member is easily stuck at the vertex of the isosceles triangle.

[0056] In some optional embodiments, a pneumatic spring 21 is provided between the valve core 2 and the bottom wall of the pneumatic cavity, and a valve stem 22 is connected to one end of the valve core 2 away from the pneumatic spring 21. The valve stem 22 extends out of the pneumatic cavity and abuts against the shell assembly 3.

[0057] It can be understood that the valve core 2 moves in the pneumatic cavity driven by the valve stem 22, and the pneumatic spring 21 provides the valve core 2 with a restoring force to move in the direction of the valve stem 22. The valve stem 22 abuts against the housing assembly 3, so that when the housing assembly 3 moves relative to the valve body 1, it pushes the valve stem 22 to drive the valve core 2 to move in the pneumatic cavity.

[0058] In this example, if Figure 5 As shown, the valve body 1, valve core 2, pneumatic spring 21 and valve stem 22 form a two-position three-way valve, wherein the valve core 2 is a cylindrical structure and is made of elastic material. It is located in the rodless cavity of the pneumatic cavity, and the air inlet 13 for communicating with the air pump is connected to the rodless cavity. The valve stem 22 is located in the rod cavity of the pneumatic cavity, and the vent 11 for communicating with the airbag is connected to the rod cavity. A through hole is opened axially on the valve stem 22, and one end of the through hole is used to form the exhaust port 12 when communicating with the outside, and when the other end of the through hole abuts against the valve core 2, the valve core 2 closes the exhaust port 12. The rod cavity is connected to the rodless cavity, and the inner diameter of the rod cavity is smaller than the inner diameter of the rodless cavity. The valve core 2 is adapted to the inner diameter of the rodless cavity to close the channel connecting the rod cavity and the rodless cavity. The pneumatic spring 21 is located in the rodless cavity, and the two ends abut against the valve core 2 and the bottom wall of the rodless cavity respectively.

[0059] When the shell assembly 3 is pressed down, the valve stem 22 is pushed downward by the extension of the pneumatic spring 21 and separated from the valve core 2. At this time, the valve core 2 closes the channel connecting the rod chamber and the rodless chamber, and the exhaust port 12 is opened and connected to the vent 11. The gas in the airbag is discharged through the vent 11 and the exhaust port 12; when the shell assembly 3 rises, the valve stem 22 pushes the valve core 2 and compresses the pneumatic spring 21. The valve core 2 opens the channel connecting the rod chamber and the rodless chamber, and the valve core 2 closes the exhaust port 12. At this time, the air inlet 13 is connected to the vent 11 to inflate the airbag.

[0060] Of course, in other embodiments, the two-state switching of the above-mentioned two-position three-way valve may also be implemented in other ways. For example, a plurality of through holes may be provided on the valve core, and the inlets of the through holes may be respectively connected to the vent or the air inlet or the exhaust port, and the vent and the exhaust port may be connected to each other by moving the valve core. This will not be elaborated here.

[0061] In some optional embodiments, the housing assembly 3 includes a U-shaped housing 31, a pressing portion 32 and a base 33. The U-shaped housing 31 is covered outside the valve body 1 and can slide relative to the valve body 1. The valve stem 22 extends out of the pneumatic cavity and extends toward the opening direction of the U-shaped housing 31. A limiting hole is provided at the closed end of the U-shaped housing 31. The pressing portion 32 is engaged with the closed end of the U-shaped housing 31. One end of the elastic member 36 passes through the limiting hole and abuts against the U-shaped housing 31, and the other end abuts against the pressing portion 32. The base 33 is connected to the opening of the U-shaped housing 31 and closes the opening. One end of the limiting member 35 is connected to the base 33, and the other end extends into the slideway 14. The end of the valve stem 22 extending out of the pneumatic cavity abuts against the base 33.

[0062] It can be understood that the U-shaped housing 31 and the base 33 are moved relative to the valve body 1 by pressing, and the valve stem 22 is pushed and the valve core 2 is driven to move.

[0063] In this example, since two connecting fixings 42 are connected to the bracket body 41, the housing is set to be U-shaped in order to avoid the connecting fixings 42. The U-shaped housing 31 and the pressing portion 32 are connected in a snap-fit ​​manner for easy installation and removal. Preferably, an annular limiting column is provided on the bracket body 41, and the elastic member 36 is a spring. The spring is located in the annular limiting column to play a guiding role to prevent the spring from bending when pressed.

[0064] Furthermore, the base 33 includes a bottom plate 331 and a side plate 332. The two side walls of the U-shaped housing 31 close to each other at the open end are provided with a slot 311. The bottom plate 331 is plugged into the slot 311. The side plate 332 is provided with an escape space for escaping the slideway 14. The stopper 35 is a steel wire, one end of which is connected to the side plate 332 and the other end extends into the slideway 14. The side plate 332 is fixedly connected to the U-shaped housing 31 by bolts 333.

[0065] In some optional embodiments, the housing assembly 3 further includes a supporting member 34 , one end of which is rotatably connected to the base 33 via a torsion spring, and the other end of which is supported by the limiting member 35 .

[0066] It is understandable that in order to prevent the limiting member 35 from slipping out of the slideway 14 during the sliding process in the slideway 14, the limiting member 35 is held in the slideway by the abutting member 34. In this example, since the limiting member 35 is a steel wire, a bending portion is provided on the steel wire for the abutting member 34 to abut.

[0067] On the other hand, Figure 6 As shown, the present application also provides a lifting seat, comprising any one of the quick lifting valves 00 described above.

[0068] Specifically, the rapid lifting valve 00 includes a valve body 1, a valve core 2 and a shell assembly 3. The valve body 1 is fixedly arranged and has a pneumatic cavity. The pneumatic cavity is provided with a vent 11 for communicating with an airbag, an exhaust port 12 communicating with the outside and an air inlet 13 communicating with an air pump. A slideway 14 is provided on the outer wall of the valve body 1. The valve core 2 is slidably arranged in the pneumatic cavity. The shell assembly 3 includes a limit member 35. The shell assembly 3 can move relative to the valve body 1 and drive the limit member 35 to slide in the slideway 14. When the limit member 35 moves and is clamped to the first limit point of the slideway 14, the valve core 2 connects the vent 11 with the exhaust port 12 to exhaust the airbag. When the limit member moves and is clamped to the second limit point of the slideway 14, the valve core 2 connects the vent 11 with the air inlet 13 to inflate the airbag.

[0069] In this example, if Figure 5 As shown, the valve body 1, valve core 2, pneumatic spring 21 and valve stem 22 form a two-position three-way valve, wherein the valve core 2 is a cylindrical structure and is made of elastic material. It is located in the rodless cavity of the pneumatic cavity, and the air inlet 13 for communicating with the air pump is connected to the rodless cavity. The valve stem 22 is located in the rod cavity of the pneumatic cavity, and the vent 11 for communicating with the airbag is connected to the rod cavity. A through hole is opened axially on the valve stem 22, and one end of the through hole is used to form the exhaust port 12 when communicating with the outside, and when the other end of the through hole abuts against the valve core 2, the valve core 2 closes the exhaust port 12. The rod cavity is connected to the rodless cavity, and the inner diameter of the rod cavity is smaller than the inner diameter of the rodless cavity. The valve core 2 is adapted to the inner diameter of the rodless cavity to close the channel connecting the rod cavity and the rodless cavity. The pneumatic spring 21 is located in the rodless cavity, and the two ends abut against the valve core 2 and the bottom wall of the rodless cavity respectively.

[0070] When the shell assembly 3 is pressed down, the valve stem 22 is pushed downward by the extension of the pneumatic spring 21 and separated from the valve core 2. At this time, the valve core 2 closes the channel connecting the rod chamber and the rodless chamber, and the exhaust port 12 is opened and connected to the vent 11. The gas in the airbag is discharged through the vent 11 and the exhaust port 12; when the shell assembly 3 rises, the valve stem 22 pushes the valve core 2 and compresses the pneumatic spring 21. The valve core 2 opens the channel connecting the rod chamber and the rodless chamber, and the valve core 2 closes the exhaust port 12. At this time, the air inlet 13 is connected to the vent 11 to inflate the airbag.

[0071] Furthermore, if Figure 2 As shown, the above-mentioned fixed bracket 4 includes a bracket body 41 and a connecting fixture 42, the bracket body 41 has a cavity for accommodating the above-mentioned valve body 1, and the above-mentioned slide 14 is provided on the side wall of the above-mentioned bracket body 41; the connecting fixture 42, one end of which is connected to the above-mentioned bracket body 41, and the other end is used to connect with the seat.

[0072] In this example, two connecting fixing members 42 are provided, which are respectively connected to two opposite side walls of the bracket body 41, so that the connection is more stable when the valve body 1 is fixed. The slideway 14 is arranged on the side wall of the bracket body 41. When the housing assembly 3 moves in the slidable direction of the valve core 2 relative to the whole formed by the connection of the valve body 1 and the fixing bracket 4, the limiter 35 slides in the slideway 14. The slideway 14 is arranged on the valve body 1 through the bracket body 41, which can reduce damage to the structure of the valve body 1 and facilitate installation.

[0073] like Figure 7 As shown, the above-mentioned quick lifting valve 00 is installed on the vehicle seat, and close to the front side of the seat for easy operation, and then the air vent 11 of the quick lifting valve is connected to the airbag through the air intake pipe 6, and the air intake 13 is connected to the vehicle's air supply mechanism, such as an air pump. When the driver needs to get in and out of the vehicle quickly, the quick lifting valve can quickly discharge the gas in the seat airbag, and the seat height drops to the lowest position, thereby increasing the space between the seat and the steering wheel and improving the convenience of getting in and out; when the driver and passengers are seated, pressing the quick lifting valve can inflate the seat and raise the seat.

[0074] Since the quick lifting valve 00 is a mechanical valve, and the switching between inflation and exhaust is achieved by pressing up and down, it is not only easy to install, but also has low cost and high reliability.

[0075] Preferably, the air vent 11 and the air inlet 13 are both covered with a trachea fixing sleeve 7 .

[0076] In some optional embodiments, the vent 11 is connected to the airbag via a height valve 5 .

[0077] It can be understood that the function of the height valve 5 is to control the specific height of the seat rise, and the height memory of the seat is achieved by connecting the fast lifting valve 00 with the height valve 5 and then connecting with the airbag.

[0078] Specifically, when the seat airbag is deflated, the gas cannot pass through the quick lifting valve, and the gas in the airbag is directly discharged from the quick lifting valve, and the seat is lowered to the lowest position; when the quick lifting valve is in the intake state, the gas enters the airbag through the height valve. Since the position of the height valve has not changed, the seat can be raised to the state before deflation, thereby realizing the seat height memory.

[0079] The working principle of the embodiment of the present application is as follows: the pressing portion 32 is pressed, the base 33 moves downward relative to the valve body 1, the elastic member 36 is compressed, and the limiting member 35 moves out from the opening of the V-shaped groove of the V-shaped inner plate 412. At this time, the pressing portion 32 is released, and the base 33 moves upward relative to the valve body 1 under the elastic restoring force of the elastic member 36, driving the limiting member 35 to move upward along the slide 14 until it is engaged with the bottom of the V-shaped groove of the V-shaped outer plate 411. At this time, the valve stem 22 pushes the valve core 2 and compresses the pneumatic spring 21. The valve core 2 opens the channel connecting the rod cavity and the rodless cavity, and the valve core 2 closes the exhaust port 12, and the air inlet 13 is connected to the vent 11 to inflate the airbag; the pressing portion 32 is pressed again, and the base 33 moves relative to the valve body 1. As the valve body 1 moves downward, the elastic member 36 is compressed, and the limit member 35 moves along the slide 14 from the bottom of the V-shaped groove of the V-shaped outer plate 411 toward its opening direction until it moves to the opening of the V-shaped groove of the V-shaped inner plate 412. The pressing portion 32 is released, and the base 33 moves upward relative to the valve body 1 under the elastic restoring force of the elastic member 36, driving the limit member 35 to move upward until it is engaged with the bottom of the V-shaped groove of the V-shaped inner plate 412. The valve stem 22 is pushed downward by the extension of the pneumatic spring 21 and separated from the valve core 2. At this time, the valve core 2 closes the channel connecting the rod cavity and the rodless cavity, and the exhaust port 12 is opened and connected to the vent 11. The gas in the airbag is discharged through the vent 11 and the exhaust port 12, and the airbag is deflated.

[0080] A fast lifting valve and lifting seat of the present invention slides in the slideway 14 through a limiter 35 and engages with a first limit point and a second limit point, thereby limiting the relative displacement stroke of the shell assembly 3 relative to the valve body 1, and realizing the switching of the two states of the fast lifting valve, namely, the switching of the ventilation state and the exhaust state; by setting a V-shaped outer plate 411 and a V-shaped inner plate 412, a slideway 14 is formed, and cooperates with an elastic member 36, so that the inflation and deflation states of the airbag can be quickly switched, and it is avoided to groove the bracket body 41, increase the wall thickness of the bracket body 41 and cause structural redundancy; by setting the limiter The positioning block 413 not only prevents the limiting member 35 from slipping off the opening of the V-shaped outer plate 411 and being unable to continue sliding in the slide 14, but also provides guidance for the movement of the limiting member 35 in the slide 14; through the two-position three-way valve composed of the valve body 1, the valve core 2, the pneumatic spring 21 and the valve stem 22, the two-state switching of a valve body under two downward strokes is realized; by setting the abutment member 34, the limiting member 35 is prevented from escaping from the slide 14 during the sliding process in the slide 14; by connecting the quick lifting valve with the height valve 5 and then connecting with the airbag, the height memory of the seat is realized.

[0081] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0082] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0083] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A rapid lifting valve, characterized in that: include: A valve body (1) is fixedly arranged and has a pneumatic cavity, wherein the pneumatic cavity is provided with a vent (11) for communicating with an air bag, an exhaust port (12) communicating with the outside, and an air inlet (13) communicating with an air pump, and a slideway (14) is provided on the outer wall of the valve body (1); A valve core (2) slidably disposed in the pneumatic cavity; A housing assembly (3), comprising a stopper (35), wherein the housing assembly (3) is movable relative to the valve body (1) and drives the stopper (35) to slide in the slideway (14); when the stopper (35) moves and snaps into place at a first limit position of the slideway (14), the valve core (2) connects the vent (11) with the exhaust port (12) to exhaust the airbag; and when the stopper moves and snaps into place at a second limit position of the slideway (14), the valve core (2) connects the vent (11) with the air inlet (13) to inflate the airbag; a fixed bracket (4), the fixed bracket (4) being sleeved outside the valve body (1) and fixedly connected to the valve body (1), and the slideway (14) being provided on the fixed bracket (4); The fixing bracket (4) comprises: A support body (41) having a cavity for accommodating the valve body (1), the slideway (14) being provided on a side wall of the support body (41), and the housing assembly (3) being slidably connected to the support body (41); A connecting fixing member (42), one end of which is connected to the bracket body (41) and the other end of which is used to connect to the seat; An elastic member (36) is provided between the bracket body (41) and the shell assembly (3); a V-shaped outer plate (411) is connected to the side wall of the bracket body (41); a V-shaped inner plate (412) is provided in the opening of the V-shaped outer plate (411); the V-shaped inner plate (412) is spaced from the V-shaped outer plate (411) to form the slideway (14); and the opening direction of the V-shaped inner plate (412) and the V-shaped outer plate (411) is opposite to the extension direction of the elastic member (36); the V-shaped groove of the V-shaped inner plate (412) is the first limiting point, and the V-shaped groove of the V-shaped outer plate (411) is the second limiting point.

2. The rapid lifting valve according to claim 1, characterized in that: A limit block (413) is provided at the opening of the V-shaped outer plate (411), and the limit block (413) is spaced apart from the V-shaped inner plate (412). The limit block (413) comprises a guide surface for sliding along the slideway (14) through the guide surface when the limit member (35) moves out of the V-shaped groove of the V-shaped inner plate (412).

3. The rapid lifting valve according to claim 1, characterized in that: A pneumatic spring (21) is provided between the valve core (2) and the bottom wall of the pneumatic cavity. One end of the valve core (2) away from the pneumatic spring (21) is connected to a valve stem (22). The valve stem (22) extends out of the pneumatic cavity and abuts against the housing assembly (3).

4. The rapid lifting valve according to claim 3, characterized in that: The housing assembly (3) comprises: A U-shaped shell (31) is disposed outside the valve body (1) and is slidable relative to the valve body (1); the valve stem (22) extends out of the pneumatic cavity and toward the opening of the U-shaped shell (31); and a avoidance hole is provided at the closed end of the U-shaped shell (31); A pressing portion (32) is clamped with the closed end of the U-shaped shell (31); one end of the elastic member (36) passes through the avoidance hole and abuts against the bracket body (41), and the other end abuts against the pressing portion (32); A base (33) is connected to the opening of the U-shaped shell (31) and closes the opening; one end of the limiter (35) is connected to the base (33) and the other end extends into the slideway (14); the end of the valve stem (22) extending out of the pneumatic cavity abuts against the base (33).

5. The rapid lifting valve according to claim 4, characterized in that: The housing assembly (3) further comprises a supporting member (34), one end of which is rotatably connected to the base (33) via a torsion spring, and the other end of which is supported by the limiting member (35).

6. A lifting seat, characterized in that: It comprises a rapid lifting valve as described in any one of claims 1-5.

7. The lifting seat according to claim 6, characterized in that: The vent (11) is communicated with the air bag through the height valve (5).

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