CN218198027U - Compact control valve mechanism and pneumatic adjusting device of automobile seat - Google Patents

Abstract

The application provides a compact control valve mechanism and car seat pneumatic adjusting device, wherein compact control valve control mechanism includes: the shell is internally provided with a first cavity, the first cavity is provided with a main air passage, and the extending direction of the main air passage is a second direction; at least one is located the valve body of casing both sides along the second direction, and the valve body includes: the first interface is exposed outside the shell and communicated with an external air using unit or an external air supplying unit; the second interface is communicated with the main air passage, one end of the second interface, which is far away from the first interface, extends into the main air passage, and the extending direction of the second interface is a third direction; the second interface is arranged at the inner end of the main air passage and is provided with a first through groove in a penetrating manner, and the extending direction of the first through groove is the second direction; first logical groove is used for increasing gaseous flow area in the main air duct, so compare with prior art, this mechanism has realized the compactness of mechanism when guaranteeing the air output of valve body, under the prerequisite of guaranteeing to take the comfort level, has improved the utilization ratio in vehicle space.

Description

Compact control valve mechanism and pneumatic adjusting device of automobile seat

Technical Field

The application relates to the technical field of automobile seats, in particular to a compact control valve mechanism and an automobile seat pneumatic adjusting device.

Background

With the technological development in the field of vehicle transportation, people have higher and higher requirements on the riding comfort of vehicles. The waist and back adjusting and massaging device of the seat is produced at the same time, and the problem of fatigue of the waist and back of a human body caused by long-time driving is effectively solved.

Be equipped with the air pocket on the car seat, fill the effect that the gas realization was massaged through the gassing of air pocket, the air pocket intercommunication is the valve body for its air feed, gaseous air feed to the valve body through the air flue, the opening part of air flue is located to the valve body, guarantee that gaseous flow area in the air flue is enough big, however, make whole control valve structure too thick, lead to the seat space behind one's back too crowded, seek the installation space difficulty, consequently the thickness that reduces the controller becomes the problem of waiting for promptly solving.

Disclosure of Invention

In view of the above-mentioned drawbacks or deficiencies of the prior art, the present application aims to provide a compact control valve mechanism and a car seat massage device.

In a first aspect, the present application provides a compact control valve mechanism comprising:

the air conditioner comprises a shell, a first air duct and a second air duct, wherein a first cavity is formed in the shell, two communicated main air ducts are distributed in the first cavity along a first direction, the extending direction of the main air ducts is a second direction, and the second direction is perpendicular to the first direction;

at least one is followed the second direction is located the valve body of casing both sides, the valve body includes:

a first interface exposed outside the housing, the first interface being in communication with an external air or gas supply unit;

the second interface is communicated with the main air passage, one end, far away from the first interface, of the second interface extends into the main air passage, the extending direction of the second interface is a third direction, and the third direction is perpendicular to the first direction and the second direction; the second interface is arranged at the inner end of the main air duct and provided with a first through groove in a penetrating manner, and the extending direction of the first through groove is the second direction; the first through groove is used for increasing the flow area of gas flowing through the second interface along the main air passage.

According to the technical scheme provided by the embodiment of the application, the first through groove is U-shaped, and the opening direction of the first through groove faces to the main air passage.

According to the technical scheme that this application embodiment provides, first logical inslot forms the circulation space, the opening part that first logical inslot was equipped with the cambered surface, the opening orientation of cambered surface is kept away from the direction of circulation space.

According to the technical scheme provided by the embodiment of the application, a plurality of air path interfaces are distributed on the main air path along the second direction, and the second interfaces are inserted into the air path interfaces and extend into the main air path.

According to the technical scheme provided by the embodiment of the application, a sealing piece is arranged between the second interface and the air path interface.

According to the technical scheme provided by the embodiment of the application, along the third direction, the depth of the first through groove is smaller than the vertical distance between the end, far away from the main air duct, of the sealing element and the end, close to the main air duct, of the second interface.

According to the technical scheme provided by the embodiment of the application, each valve body is provided with a switch assembly, and each switch assembly is provided with a first state and a second state; when the switch assembly is in the first state, the switch assembly closes the second interface, the main air passage is blocked, and gas cannot enter the valve body; when the switch assembly is in the second state, gas can circulate in a gas path formed by the main gas path, the second interface and the first interface.

According to the technical scheme provided by the embodiment of the application, the valve body comprises a first three-way valve, the first three-way valve comprises a first opening communicated with the first port, a second opening communicated with the second port and a third opening communicated with the first cavity, the valve body has a third state and a fourth state, when the valve body is in the third state, the first opening is communicated with the second opening, and the first opening and the second opening are isolated from the third opening; when the valve body is in the fourth state, the first opening is communicated with the third opening, and the first opening and the third opening are isolated from the second opening.

According to the technical scheme provided by the embodiment of the application, the valve body comprises a second three-way valve and a two-position two-way valve, wherein the second three-way valve comprises a fourth opening communicated with the first interface, a fifth opening communicated with the second interface and a sixth opening; the two-position two-way valve comprises a seventh opening communicated with the sixth opening and an eighth opening communicated with the first cavity; the valve body has a fifth state, a sixth state and a seventh state, when the valve body is in the fifth state, the fourth opening, the sixth opening and the seventh opening are communicated and isolated from the fifth opening, and the seventh opening and the eighth opening are disconnected; when the valve body is in the sixth state, the fourth opening, the sixth opening, the seventh opening and the eighth opening are communicated and isolated from the fifth opening; when the valve body is in a seventh state, the fourth opening and the fifth opening are communicated and disconnected with the sixth opening, and the seventh opening and the eighth opening are disconnected.

In a second aspect, the present application provides a pneumatic adjusting device for a car seat, including the compact control valve mechanism described above, further including an air supply unit communicated with the first interface, an air bag body communicated with the first interface, and an air pipeline for communicating the air supply unit, the control valve mechanism, and the air bag body.

In summary, the present application provides a compact control valve mechanism, in which a plurality of valve bodies are disposed on two sides of a housing, a main air passage is disposed in the housing, each valve body has a first interface exposed outside the housing and a second interface, one end of each valve body communicating with the main air passage extends into the main air passage, the second interface is provided with a first through groove along an extending direction of the main air passage, and the main air passage, the second interface and the first interface form a gas circulation passage; compared with the prior art, although the second interface has stretched into main airway, but first logical groove can increase gaseous area of circulation in main airway for stretch into main airway with the second interface and compare, gaseous area of circulation approximately equals, so this scheme is under the prerequisite that does not reduce gas flow, has realized the compactness of mechanism, under the prerequisite of guaranteeing to take the comfort level, has improved vehicle space's utilization ratio.

Drawings

FIG. 1 is a schematic cross-sectional view of a compact control valve mechanism provided in accordance with an embodiment of the present application;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic structural diagram of a compact control valve mechanism provided in an embodiment of the present application;

fig. 4 is a schematic view of an internal structure of a housing according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a main airway and a branch airway provided by an embodiment of the present application;

FIG. 6 is a schematic view of the backside of FIG. 5 provided by an embodiment of the present application;

fig. 7 is a schematic structural diagram of the gas path plug valve body according to the embodiment of the present application;

FIG. 8 is a schematic structural diagram of a supporting solenoid valve body according to an embodiment of the present disclosure;

fig. 9 is a side view of a valve body of a massage solenoid valve provided in an embodiment of the present application;

fig. 10 is a schematic view of a first through groove provided in the embodiment of the present application, which has a trapezoidal cross section;

fig. 11 is a schematic structural view of a valve body of a massage solenoid valve provided in an embodiment of the present application;

fig. 12 is a schematic structural diagram of a pneumatic adjusting device for a car seat according to an embodiment of the present application.

The text labels in the figures are represented as:

1. a housing; 11. a first cavity; 2. a main airway; 21. a gas path interface; 22. a branch airway; 23. steel balls; 3. a valve body; 31. a first interface; 32. a second interface; 321. a first through groove; 3211. a cambered surface; 33. a gas path plug valve body; 34. supporting the electromagnetic valve body; 35. a massage solenoid valve body; 36. a bump; 4. a seal member; 5. a switch assembly; 51. a first air chamber; 52. a first air passage; 53. a first gas port; 54. a second air passage; 55. an abutting member; 56. a coil; 6. an air line; 61. an air pump; 7. a control valve mechanism; 8. an air supply unit; 9. an intake passage.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example 1

As mentioned in the background of the invention, the present application addresses the problems of the prior art by providing a compact control valve mechanism, as shown in fig. 1-12, comprising:

the air conditioner comprises a shell 1, wherein a first cavity 11 is formed in the shell, two communicated main air ducts 2 are distributed in the first cavity 11 along a first direction, the extending direction of the main air ducts 2 is a second direction, and the second direction is perpendicular to the first direction; optionally, the housing 1 is a rectangular parallelepiped, and in some specific scenarios, the control valve mechanism is mounted on a backrest of an automobile, where the first direction is a width direction of the housing 1, and the second direction is a length direction of the housing 1; the section of the main air passage 2 is circular; the middle parts of the two main air passages 2 are communicated through a branch air passage 22; the extending direction of the branch air passage is the first direction; specifically, as shown in fig. 3, through holes are formed at two ends of the main air duct 2 along with the opening of the mold, and in order to seal the air duct and block the through holes at the two ends from the outside atmosphere, steel balls 23 may be added at the through holes to block the through holes of the main air duct, or the through holes at the two ends are sealed and blocked by adopting a hot-melt welding manner at the two ends of the main air duct 2;

at least one is followed the second direction is located the valve body 3 of casing both sides, valve body 3 includes:

a first interface 31, wherein the first interface 31 is exposed outside the housing 1, and is used for communicating with an external air using unit or an external air supplying unit;

a second port 32, the second port 32 being in communication with the main air duct 2, an end of the second port 32, which is far away from the first port 31, extending into the main air duct 2, and extending in a third direction, the third direction being perpendicular to the first direction and perpendicular to the second direction; the second interface 32 is provided with a first through groove 321 at the end of the main air duct 2, the extending direction of the first through groove 321 is the second direction, and the first through groove 321 is used for increasing the flow area of the gas flowing through the second interface 32 along the main air duct 2; alternatively, the valve body 3 may be an air passage plug valve body 33 and/or a support solenoid valve body 34 and/or a massage solenoid valve body 35, and the like, and each valve body 3 includes the second port 32 communicated with the main air passage 2; the third direction is the thickness direction of the housing 1; compared with the prior art, although the second interface 32 extends into the main air passage 2, when the first through groove 321 is designed to prevent the second interface 32 from blocking an air passage through which air flows, compared with the case that the second interface 32 does not have the first through groove 321, the air flow area is increased, and compared with the case that the second interface 32 does not extend into the main air passage 2, the air flow area in the main air passage 2 is approximately equal, so that the scheme ensures the air inflow, simultaneously ensures that the structure of the control valve mechanism is more compact, reduces the thickness and improves the utilization rate of the automobile space.

Further, the first through groove 321 is U-shaped, and an opening direction thereof is a direction toward the main air passage 2; specifically, the second port 32 is cylindrical, two opposite first grooves are respectively formed in the outer wall of the second port 32 along the second direction, the opening direction of the first grooves faces the direction of the main air duct 2, and the two first grooves form the first through groove 321, optionally, as shown in fig. 7, 8, and 9, the first through groove is arched or arched, and the side away from the main air duct is arched; optionally, as shown in fig. 10, the cross section of the first through groove is trapezoidal.

Further, a circulation space is formed in the first through groove 321, an opening of the first through groove is provided with an arc surface 3211, and an opening of the arc surface 3211 faces a direction away from the circulation space; specifically, the arc surface 3211 is disposed at an opening of the first groove, and a cross-section of the opening of the first through groove 321 is in a shape of a Chinese character 'ba'; due to the arrangement of the arc surface 3211, the second port 32 extending into the main air passage 2 does not block the original flow path of the main air passage 2, and thus the flow area of the gas in the main air passage 2 is not changed.

Further, as shown in fig. 3 and 4, a plurality of air path interfaces 21 are distributed on the main air path 2 along the second direction, and the second interfaces 32 are inserted into the air path interfaces 21 and extend into the main air path 2; optionally, the air path interface 21 is a through hole, the air path interface 21 includes a circle of first step surfaces 22, a circle of second step surfaces 23, and a circle of third step surfaces 24, as shown in fig. 9, the first step surfaces 22, the second step surfaces 23, and the third step surfaces 24 are arranged in a step shape, a protruding block 36 is disposed at an end of the second interface 32 away from the main air path 2, the protruding block 36 is disposed in a first space formed by the first step surfaces 22 and an opening at the top of the air path interface 21, and an end of the second interface 32 close to the main air path 2 abuts against the third step surfaces 24.

Further, a sealing element 4 is arranged between the second interface 32 and the air path interface 21; specifically, the sealing element 4 is in the form of a sealing ring, and is sleeved outside the second interface 32, and the sealing element 4 is disposed in a second space formed by the second step surface 23 and the third step surface 24, and is used for sealing the connection between the second interface 32 and the main air duct 2, so as to prevent air leakage from between the second interface 32 and the air duct interface 21.

Further, in the third direction, the depth of the first through groove 321 is smaller than the perpendicular distance between the end of the seal 4 away from the main air duct 2 and the end of the second interface 32 close to the main air duct 2; specifically, a side of the first through groove 321 away from the main air duct 2 is arched, and a depth thereof is a first distance; since the sealing element 4 is disposed in the second space, the end of the sealing element 4 away from the main air duct 2 is the second step surface 23, the end of the second port 32 close to the main air duct 2 is the bottom end of the first through groove 321, that is, the vertical distance from the second step surface 23 to the bottommost end of the second port 32 is a second distance; the first distance is smaller than the second distance, that is, the height of the highest point of the sealing element 4 is greater than the height of the highest point of the first through groove 321 along the third direction; gas is prevented from entering the gap between the second port 32 and the gas circuit port 21, and gas leakage is further avoided.

Further, as shown in fig. 1 and 9, each valve body 3 is provided with a switch assembly 5, and the switch assembly 5 has a first state and a second state; when the switch assembly 5 is in the first state, the switch assembly 5 closes the second interface 32, and the air passage formed by the first interface 31, the second interface 32 and the main air passage 2 is blocked; when the switch assembly 5 is in the second state, gas can circulate in the gas path formed by the main gas path 2, the second interface 32 and the first interface 31; when the valve body 3 is an air supply valve body, the first interface 31 of the air supply valve body is communicated with the air supply unit, the air supply unit is responsible for conveying air to the main air passage 2, for example, the air supply unit can be an air pump 61 or an air supply of a vehicle body, at least one air supply valve body is arranged in the valve body 3 of the whole compact control valve mechanism and is used for connecting the air supply with the air passage of the main air passage 2 of the compact control valve mechanism, at this time, when the switch assembly 5 is in the second state, air is supplied to the first interface 31 of the air supply valve body by the air supply unit and then enters the main air passage 2 by the second interface 32 of the air supply valve body, and when the switch assembly 5 is in the first state, the air supply unit is blocked from the air passage of the main air passage 2; when the valve body 3 is a gas valve body, the gas valve body may be the support valve body 34 and/or the massage solenoid valve body 35, at this time, the first interface 31 is communicated with the gas using unit, such as an air bag or an air cylinder, at this time, when the switch assembly 5 is in the second state, gas enters the first interface 31 through the second interface 32 via the main air passage 2, and then the gas is supplied to the gas using unit, and at least one massage solenoid valve body 35 and/or at least one support valve body 34 is/are arranged in the valve body 3 in the whole compact control valve mechanism;

wherein the switch assembly 5 comprises: a first air chamber 51 arranged in the first cavity 11, a first air passage 52 communicated with the first air chamber 51 and the first interface 31 is arranged between the first air chamber 51 and the first interface 31, a first air port 53 is arranged at the end of the first air chamber 51 close to the first interface 31, a second air passage 54 communicated with the first air chamber 51 is arranged at the end of the first air port 53 far away from the first air chamber 51, and the end of the second air passage 54 far away from the first air port 53 is communicated with the end of the second interface 32 far away from the main air passage 2; an abutting piece 55 is arranged in the first air chamber 51, the extending direction of the abutting piece 55 is the first direction, an elastic component is arranged at the end, away from the first air port 53, of the abutting piece 55, and the elastic component provides elastic force to the abutting piece 55 in the direction of the first air port 53; a coil 56 is arranged outside the first air chamber 51, the abutting piece 55 is made of demagnetizing materials, and when the coil 56 is electrified, the abutting piece 55 moves in a direction away from the first air port 53 under the excitation action; when the switch assembly 5 is in the first state, the abutting piece 55 abuts against the first air port 53 under the action of the elastic assembly, so that the first air port 53 is closed; when the switch assembly 5 is in the second state, the coil 56 is energized, the magnetic force applied to the abutting piece 55 is greater than the elastic acting force, so that the abutting piece 55 moves in the direction away from the first air port 53, the abutting piece 55 is separated from the first air port 53, and the air passages formed by the main air passage 2, the second interface 32 and the first interface 31 are conducted.

Further, the valve body 3 includes a first three-way valve including a first opening communicating with the first port 31, a second opening communicating with the second port 32, and a third opening communicating with the first cavity 11, the valve body 3 has a third state and a fourth state, when the three-way valve is in the third state, the first opening communicates with the second opening, and the first opening and the second opening are isolated from the third opening; when the valve body 3 is in the fourth state, the first opening communicates with the third opening, and the first opening and the third opening are isolated from the second opening; in some specific scenes, a plurality of air bags are included in the automobile massage seat, the air bags are the air supply unit, when the air supply valve body is the massage electromagnetic valve body 35, the air bags are communicated with the first interface 31 of the air supply valve body, when the valve body 3 is in the third state, the air supply valve body supplies air to the main air passage 2, the air flows from the main air passage 2 to the second interface 32 and then enters the first interface 31 to inflate the air supply unit, and when the valve body 3 is in the fourth state, the air in the air supply unit is discharged into the first cavity 11 through the third opening, so that the inflation and deflation processes of the air bags can be realized by switching the third state and the fourth state, and the massage function is completed.

Further, the valve body 3 includes a second three-way valve including a fourth opening communicating with the first port 31, a fifth opening communicating with the second port 32, and a sixth opening, and a two-position two-way valve; the two-position two-way valve comprises a seventh opening communicated with the sixth opening and an eighth opening communicated with the first cavity 11; the valve body 3 has a fifth state, a sixth state and a seventh state, when the valve body 3 is in the fifth state, the fourth opening, the sixth opening and the seventh opening are communicated and isolated from the fifth opening, the seventh opening and the eighth opening are disconnected, and at this time, the gas using unit body is in a pressure maintaining state; when the valve body 3 is in the sixth state, the fourth opening, the sixth opening, the seventh opening and the eighth opening are communicated and isolated from the fifth opening, and at this time, the air using unit body is in an air release state; when the valve body 3 is in the seventh state, the fourth opening is communicated with the fifth opening and is disconnected with the sixth opening, the seventh opening is disconnected with the eighth opening, and when the air source is in an air supply state, the air bag body is in an inflation state; in some specific scenarios, the gas valve body is a supporting electromagnetic valve body 34, and the gas unit is communicated with the first interface 31 of the gas valve body.

Example 2

An automobile seat pneumatic adjusting device is shown in fig. 12, and comprises the compact control valve mechanism 7, an air source, an air pipeline and an air bag body, wherein the air source is communicated with an air inlet channel 9, the first interface 31 is connected with at least one air bag body, and the air pipeline 6 is used for connecting the air source, the control valve mechanism 7 and the air bag body through air channels; specifically, the control valve mechanism 7 is mounted on the backrest of the car seat, the control valve mechanism comprises one air supply valve body and at least one air valve body, and the first interface 31 of the air valve body is communicated with the air bag body arranged in the backrest of the car seat; when the gas valve body is the support valve body 34, the gas bag body is in a proper expansion state to play a supporting role, and when the gas valve body is the massage valve body 35, the gas filling and discharging of the gas bag body are realized by switching the state of the gas valve body, so that the function of massaging a human body is completed; an air pump 61 is arranged in the automobile trunk, and the air pump 61 is communicated with the first interface 31 of the air supply valve body and provides the air source for the control valve mechanism 7.

When one of the valve bodies 3 is an air supply valve body, the air supply valve body can be used as the air inlet channel 9. Of course, the intake passage has only to satisfy the passage function, and it is not necessary to include a switch assembly.

The principles and embodiments of the present application are described herein using specific examples, which are only used to help understand the method and its core idea of the present application. The foregoing are only preferred embodiments of the present application and it should be noted that there are no more than a few objective specific configurations due to the limited nature of the words that may be employed, and that modifications, decorations, or changes may be made by those skilled in the art without departing from the principles of the present invention or the technical features described above may be combined in any suitable manner; such modifications, variations, combinations, or adaptations of the invention in other instances, which may or may not be practiced, are intended to be within the scope of the present application.

Claims (10)

1. A compact control valve mechanism, comprising:

the air conditioner comprises a shell (1), wherein a first cavity (11) is arranged in the shell (1), two communicated main air channels (2) are distributed in the first cavity (11) along a first direction, the extending direction of the main air channels (2) is a second direction, and the second direction is perpendicular to the first direction;

at least one is followed the second direction is located valve body (3) of casing (1) both sides, valve body (3) include:

a first interface (31), wherein the first interface (31) is exposed outside the shell (1), and the first interface (31) is used for communicating with an external air using unit or an external air supplying unit;

a second interface (32), wherein the second interface (32) is communicated with the main air passage (2), one end of the second interface (32), which is far away from the first interface (31), extends into the main air passage (2), and the extending direction of the second interface is a third direction, and the third direction is perpendicular to the first direction and perpendicular to the second direction; the second interface (32) is arranged at the inner end of the main air duct (2) and is provided with a first through groove (321) in a penetrating manner, and the extending direction of the first through groove (321) is the second direction; the first through-slot (321) is used for increasing the flow area of gas flowing through the second interface (32) along the main gas duct (2).

2. The compact control valve mechanism as set forth in claim 1, wherein: the first through groove (321) is U-shaped, and the opening direction of the first through groove faces the main air passage (2).

3. The compact control valve mechanism as set forth in claim 2, wherein: a circulation space is formed in the first through groove (321), an arc surface (3211) is arranged at an opening of the first through groove (321), and the opening of the arc surface (3211) faces a direction far away from the circulation space.

4. The compact control valve mechanism as set forth in claim 1, wherein: the main air passage (2) is provided with a plurality of air passage interfaces (21) along the second direction, and the second interfaces (32) are inserted into the air passage interfaces (21) and extend into the main air passage (2).

5. The compact control valve mechanism as set forth in claim 4, wherein: and a sealing element (4) is arranged between the second interface (32) and the air channel interface (21).

6. The compact control valve mechanism as set forth in claim 5, wherein: in the third direction, the depth of the first through groove (321) is smaller than the vertical distance between the end of the sealing element (4) far away from the main air passage (2) and the end of the second interface (32) close to the main air passage (2).

7. The compact control valve mechanism as set forth in claim 1, wherein: each valve body (3) is provided with a switch assembly (5), and each switch assembly (5) has a first state and a second state; when the switch assembly (5) is in the first state, the switch assembly (5) closes the second interface (32), and the air passage formed by the first interface (31), the second interface (32) and the main air passage (2) is blocked; when the switch assembly (5) is in the second state, gas can circulate in a gas path formed by the main gas path (2), the second interface (32) and the first interface (31).

8. The compact control valve mechanism as set forth in claim 1, wherein: the valve body (3) comprises a first three-way valve comprising a first opening communicating with the first port (31), a second opening communicating with the second port (32) and a third opening communicating with the first cavity (11), the valve body (3) having a third state and a fourth state, the first opening communicating with the second opening when the valve body (3) is in the third state, the first opening, the second opening and the third opening being isolated; when the valve body (3) is in the fourth state, the first opening is communicated with the third opening, and the first opening and the third opening are isolated from the second opening.

9. The compact control valve mechanism as set forth in claim 1, wherein: the valve body (3) comprises a second three-way valve and a two-position two-way valve, wherein the second three-way valve comprises a fourth opening communicated with the first connector (31), a fifth opening communicated with the second connector (32) and a sixth opening; the two-position two-way valve comprises a seventh opening communicated with the sixth opening and an eighth opening communicated with the first cavity (11); the valve body (3) has a fifth state, a sixth state and a seventh state, when the valve body (3) is in the fifth state, the fourth opening, the sixth opening and the seventh opening are communicated and isolated from the fifth opening, and the seventh opening and the eighth opening are disconnected; when the valve body (3) is in the sixth state, the fourth opening, the sixth opening, the seventh opening and the eighth opening are communicated and isolated from the fifth opening; when the valve body (3) is in a seventh state, the fourth opening and the fifth opening are communicated and disconnected with the sixth opening, and the seventh opening and the eighth opening are disconnected.

10. The utility model provides a pneumatic adjusting device of car seat which characterized in that: the compact control valve mechanism (7) comprises the compact control valve mechanism as claimed in any one of claims 1 to 9, and further comprises an air source, an air pipeline and an air bag body, wherein the air source is communicated with the air inlet channel (9), the first interface (31) is connected with at least one air bag body, and the air pipeline (6) is used for air path connection of the air source, the control valve mechanism (7) and the air bag body.

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