A pneumatic control valve group, a pneumatic massage control valve and a multi-way pneumatic control unit

Abstract

The present application provides a pneumatic control valve group, a pneumatic massage control valve and a multi-way pneumatic control unit. Among them, the pneumatic control valve group includes a first air distribution layer and a second air distribution layer, an air inlet provided at one end of the first air distribution layer, a pneumatic port provided at one end of the second air distribution layer, an air distribution communication hole provided between the first air distribution layer and the second air distribution layer, a first elastic control component provided in the second air distribution layer, a first air release port provided between the pneumatic port and the first elastic control component, a second elastic control component provided outside the second air distribution layer, and a first electric control component provided on the side of the second air distribution layer away from the first air distribution layer. The pneumatic control valve group of the present application is provided with a first elastic control component, a second elastic control component and a first electric control component. Both the first elastic control component and the second elastic control component are elastic structures. Compared with the air path control mechanism containing a solenoid valve coil, the service life of the start control valve group is greatly improved.

Description

Technical Field

[0001] This application relates to the technical field of pneumatic control valves, and particularly to a pneumatic control valve group, a pneumatic massage control valve, and a multi-way pneumatic control unit. Background Art

[0002] With the development of technology in the field of vehicle transportation, people's requirements for vehicle ride comfort are getting higher and higher. The pneumatic support device for the lumbar and dorsal parts of the seat has emerged as the times require, effectively solving the problem of fatigue of the human lumbar and dorsal parts easily caused by long-term driving. At the same time, the seat device with a massage function, as a device for relieving the fatigue state of people during long-term driving or riding in a car, is becoming increasingly popular and has gradually been applied to the field of mid- to high-end passenger vehicles as a configuration widely welcomed by vehicle drivers and passengers.

[0003] Generally, the pneumatic support device for the lumbar and dorsal parts of the seat uses a miniature air pump as a power source to blow air through a relevant control valve body into the airbag lumbar support body placed behind the foam pad of the seat backrest. Through the inflation and deflation of the airbag body, the local protrusion or flattening of the seat back surface is realized, and then the support for the human lumbar and dorsal parts is achieved. The seat massage device uses a miniature air pump as a power source to blow air through a relevant control valve body into the airbag massage body placed in front of the foam pad of the seat backrest or above the foam pad of the seat cushion. Through the inflation and deflation of the airbag body, the local protrusion or flattening of the seat back surface is realized, and then the massage of the human head, neck, back, buttocks or legs is achieved.

[0004] However, the existing control valve bodies are mostly air circuit control mechanisms containing solenoid valve coils. This air circuit control mechanism has a complex structure and a low service life, seriously affecting the user experience. Summary of the Invention

[0005] This application provides a pneumatic control valve group, a pneumatic massage control valve, and a multi-way pneumatic control unit to solve the above technical problems.

[0006] The technical solution adopted by this application is: A pneumatic control valve group, characterized by comprising a first air distribution layer and a second air distribution layer, an air inlet provided at one end of the first air distribution layer, a pneumatic port provided at one end of the second air distribution layer, an air distribution communication hole provided between the first air distribution layer and the second air distribution layer, a first elastic control component provided in the second air distribution layer and cooperating with the air distribution communication hole, a first air release port provided on the side wall of the second air distribution layer away from the first air distribution layer, a second elastic control component provided outside the second air distribution layer and cooperating with the first air release port, and a first electric control component provided outside the second air distribution layer on the side away from the first air distribution layer and connected to the first elastic control component and the second elastic control component;

[0007] The first elastic control component includes a first elastic seal body disposed in the second air distribution layer and cooperating with the air distribution communication hole, and a first electric actuating component disposed outside the second air distribution layer and cooperating with the first elastic seal body. The first electric actuating component is disposed on the first electric control member.

[0008] The opening of the first air release port faces the first electric control member. The second elastic control component includes a second elastic seal body disposed on the first electric control member and cooperating with the first air release port, and a second electric actuating component disposed on the first electric control member and cooperating with the second elastic seal body.

[0009] Further, the first electric control member is disposed parallel to the second air distribution layer; the first elastic seal body includes a plugging portion with one end cooperating with the air distribution communication hole and the other end sliding through the wall of the second air distribution layer, and an elastic sealing portion sleeved outside the plugging portion, with one end connected to the outer periphery of the upper part of the plugging portion and the other end elastically abutted against the wall of the second air distribution layer. The plugging portion and the elastic sealing portion are integrally formed. The plugging portion is disposed perpendicular to the first electric control member, and the end of the plugging portion passing through the wall of the second air distribution layer is connected to the first electric actuating component.

[0010] Further, the first electric control member is disposed parallel to the second air distribution layer; the first elastic seal body includes a sealing member with one end cooperating with the air distribution communication hole and the other end sliding through the wall of the second air distribution layer, and an elastic member cooperating with the sealing member. The sealing member includes a stepped skeleton, a sealing surface disposed on the upper part of the stepped skeleton and cooperating with the air distribution communication hole, and a guiding sliding column disposed on the lower part of the stepped skeleton and sliding through the second air distribution layer. The elastic member includes a spring sleeved outside the stepped skeleton and an elastic compression seal body sleeved outside the guiding sliding column and cooperating with the stepped skeleton.

[0011] Further, one end of the plugging portion passing through the second air distribution layer or one end of the guiding sliding column is provided with a first hanging sliding groove. The first electric actuating component includes a first electrode and a second electrode disposed on the first electric control member and on both sides of the plugging portion or the guiding sliding column, and a first shape memory alloy wire passing through the first hanging sliding groove and connected to the first electrode and the second electrode at both ends respectively.

[0012] Further, the second elastic seal body includes an end seal cooperating with the first air release port and an elastic reset member disposed on the first electric control member and cooperating with the end seal. The end seal is provided with a second hanging sliding groove. The second electric actuating component includes a third electrode and a fourth electrode disposed on the first electric control member and on both sides of the end seal, and a second shape memory alloy wire passing through the second hanging sliding groove and connected to the third electrode and the fourth electrode at both ends respectively.

[0013] Further, a plurality of upper and lower staggered partitions are provided in the first air distribution layer and the second air distribution layer.

[0014] A pneumatic massage control valve, characterized in that it includes a third air distribution layer, a massage air inlet provided at one end of the third air distribution layer, a massage pneumatic port provided at the opposite end of the third air distribution layer from the massage air inlet, a second air release port provided on the side wall of the third air distribution layer, a third elastic control component provided outside the third air distribution layer and cooperating with the second air release port, and a second electric control component provided outside the third air distribution layer and connected to the third elastic control component. The second air release port opens towards the second electric control component. The third elastic control component includes a third elastic seal body provided on the second electric control component and cooperating with the second air release port, and a third electric actuation component provided on the second electric control component and cooperating with the third elastic seal body.

[0015] Further, the third elastic seal body includes a sealing portion cooperating with the second air release port and an elastic reset portion provided on the second electric control component and cooperating with the sealing portion. The sealing portion is provided with a third hanging chute. The third electric actuation component includes a fifth electrode and a sixth electrode provided on the second electric control component and located on both sides of the elastic reset portion, and a third shape memory alloy wire passing through the third hanging chute and connected to the fifth electrode and the sixth electrode at both ends respectively.

[0016] A multi - unit pneumatic control unit, characterized in that it includes a housing and a plurality of the pneumatic control valve groups as described in any one of the above provided inside the housing, and the first air distribution layers of two adjacent pneumatic control valve groups are interconnected.

[0017] A multi - unit pneumatic control unit, characterized in that it includes a housing, a plurality of the pneumatic control valve groups as described in any one of the above provided in parallel at one end of the housing, and a plurality of the pneumatic massage control valves as described in any one of the above provided in parallel at the other end of the housing. The first air distribution layers of two adjacent pneumatic control valve groups are connected and communicated. The pneumatic massage control valves are symmetrically arranged inside the housing, and the symmetrically arranged pneumatic massage control valves are interconnected; the pneumatic massage control valves located on one side of the housing are interconnected; the first air distribution layer of the pneumatic control valve group adjacent to the pneumatic massage control valve is connected and communicated with the pneumatic massage control valves located on one side of the housing.

[0018] The advantages and positive effects of the present application are as follows: The pneumatic control valve group of the present application is provided with a first elastic control component, a second elastic control component and a first electric control component. Both the first elastic control component and the second elastic control component are elastic structures. Compared with the air path control mechanism containing a solenoid valve coil, the service life of the start control valve group is greatly improved, and at the same time, the user experience of customers is greatly improved.

[0019] In addition to the technical problems solved by the present application, the technical features constituting the technical solutions, and the advantages brought by these technical features of the technical solutions described above, other technical problems that the present application can solve, other technical features included in the technical solutions, and the advantages brought by these technical features will be further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. 1 is a schematic structural diagram of a pneumatic control valve group provided in the background art of the present application;

[0021] Figure 2 FIG. 2 is a schematic structural diagram of a first elastic control component and a second elastic control component provided in an embodiment of the present application;

[0022] Figure 3 FIG. 3 is a schematic structural diagram of an integral first elastic seal body provided in an embodiment of the present application;

[0023] Figure 4 FIG. 4 is a schematic structural diagram of a split first elastic seal body provided in an embodiment of the present application;

[0024] Figure 5 FIG. 5 is a schematic structural diagram of a first hanging chute and a first electric actuating component provided in an embodiment of the present application;

[0025] Figure 6 FIG. 6 is a schematic structural diagram of a second elastic seal body and a second electric actuating component when the elastic member is a spring provided in an embodiment of the present application;

[0026] Figure 7 FIG. 7 is a schematic structural diagram of a split structure of a second elastic seal body provided in an embodiment of the present application;

[0027] Figure 8 FIG. 8 is a schematic structural diagram of a pneumatic control valve group in which a partition is provided in a first air distribution layer and a second air distribution layer provided in an embodiment of the present application;

[0028] Figure 9 FIG. 9 is a schematic structural diagram of a pneumatic massage control valve provided in an embodiment of the present application;

[0029] Figure 10 FIG. 10 is a schematic structural diagram of a third elastic seal body and a third electric actuating component provided in an embodiment of the present application;

[0030] Figure 11 FIG. 11 is a schematic structural diagram of a multi-stage pneumatic control unit provided in an embodiment of the present application;

[0031] Figure 12 FIG. 12 is a schematic structural diagram of a multi-stage pneumatic control unit provided in an embodiment of the present application.

[0032] In the figure: 1 is the first air distribution layer; 2 is the second air distribution layer; 3 is the air inlet; 4 is the pneumatic port; 5 is the air distribution communication hole; 6 is the first elastic control assembly; 610 is the first elastic seal; 620 is the first electro-actuating assembly; 621 is the first electrode; 622 is the second electrode; 623 is the first shape memory alloy wire; 7 is the first air release port; 8 is the second elastic control assembly; 810 is the second elastic seal; 811 is the end seal; 811a is the second hanging chute; 812 is the elastic reset member; 820 is the second electro-actuating assembly; 821 is the third electrode; 822 is the fourth electrode; 823 is the second shape memory alloy wire; 9 is the first electric control member; 10 is the blocking part; 11 is the elastic sealing part; 12 is the seal; 1210 is the stepped skeleton; 1220 is the sealing surface; 1230 is the guiding slide post; 13 is the elastic member; 1310 is the spring; 1320 is the elastic compression seal; 14 is the first hanging chute; 15 is the partition; 16 is the third air distribution layer; 17 is the massage air inlet; 18 is the massage pneumatic port; 19 is the second air release port; 20 is the third elastic control assembly; 2010 is the third elastic seal; 2011 is the sealing part; 2012 is the elastic reset part; 2020 is the third electro-actuating assembly; 2021 is the fifth electrode; 2022 is the sixth electrode; 2023 is the third shape memory alloy wire; 21 is the second electric control member; 22 is the third hanging chute; 23 is the housing Detailed implementation mode

[0033] The present application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention, rather than limiting the invention. In addition, it should be noted that for the convenience of description, only the parts related to the invention are shown in the drawings.

[0034] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0035] As Figure 1 and Figure 2 shown, a pneumatic control valve group, characterized in that it includes a first air distribution layer 1 and a second air distribution layer 2, an air inlet 3 provided at one end of the first air distribution layer 1, a pneumatic port 4 provided at one end of the second air distribution layer 2, an air distribution communication hole 5 provided between the first air distribution layer 1 and the second air distribution layer 2, a first elastic control assembly 6 provided in the second air distribution layer 2 and cooperating with the air distribution communication hole 5, a first air release port 7 provided on the side wall of the second air distribution layer 2 away from the first air distribution layer 1, a second elastic control assembly 8 provided outside the second air distribution layer 2 and cooperating with the first air release port 7, and a first electric control member 9 provided outside the second air distribution layer 2 on the side away from the first air distribution layer 1 and connected to the first elastic control assembly 6 and the second elastic control assembly 8;

[0036] The first elastic control component 6 includes a first elastic seal 610 disposed in the second air distribution layer 2 and cooperating with the air distribution communication hole 5, and a first electric actuating component 620 disposed outside the second air distribution layer 2 and cooperating with the first elastic seal 610. The first electric actuating component 620 is disposed on the first electric control member 9.

[0037] The first air release port 7 opens towards the first electric control member 9. The second elastic control component 8 includes a second elastic seal 810 disposed on the first electric control member 9 and cooperating with the first air release port 7, and a second electric actuating component 820 disposed on the first electric control member 9 and cooperating with the second elastic seal 810.

[0038] In this embodiment, the first air distribution layer 1 and the second air distribution layer 2 are the basic components of the pneumatic control valve group and are the air flow channels connecting the air source and the pneumatic cavity. Preferably, the first air distribution layer 1 and the second air distribution layer are arranged parallel to each other. Among them, one end of the first air distribution layer 1 is provided with an air inlet 3 for connecting the air source and the first air distribution layer 1; the opposite end of the second air distribution layer 2 to the air inlet 3 is provided with a pneumatic port 4 for connecting the second air distribution layer 2 and the pneumatic cavity. An air distribution communication hole 5 is provided between the first air distribution layer 1 and the second air distribution layer 2 to connect the first air distribution layer 1 and the second air distribution layer 2. A first elastic control component 6 cooperating with the air distribution communication hole 5 is provided in the second air distribution layer 2. Between the pneumatic port 4 and the first elastic control component 6, that is, on the side of the second air distribution layer 2 close to the pneumatic port 4, a first air release port 7 communicating with the outside is provided. In this embodiment, the air inlet 3, the first air distribution layer 1, the air distribution communication hole 5, the second air distribution layer 2, and the pneumatic port 4 constitute the air intake passage of the pneumatic control valve, and the pneumatic port 4, the second air distribution layer 2, and the first air release port 7 constitute the air release passage of the pneumatic control valve.

[0039] In this embodiment, the first elastic control component 6 is used to control the opening and closing of the air intake passage formed by the air inlet 3, the first air distribution layer 1, the air distribution communication hole 5, the second air distribution layer 2, and the pneumatic port 4; the first air release port 7 is provided on the side wall of the second air distribution layer 2 away from the first air distribution layer 1. A second elastic control component 8 is provided at the first air release port 7 outside the second air distribution layer 2 to control the opening and closing of the air release passage formed by the pneumatic port 4, the second air distribution layer 2, and the first air release port 7. Moreover, the first elastic control component 6 and the second elastic control component 8 cooperate to maintain the air pressure in the pneumatic cavity and play a supporting role, and can also realize the continuous inflation and deflation of the pneumatic cavity to achieve a massage effect. In this embodiment, a first electric control member 9 is provided on the side of the second air distribution layer 2 away from the first air distribution layer 1, which is the control component for the first elastic control component 6 and the second elastic control component 8 to be powered on and off. Preferably, the first electric control member 9 is arranged parallel to the second air distribution layer 2. Preferably, the first electric control member 9 is a circuit board.

[0040] In this embodiment, the first elastic control component 6 is provided with a first elastic seal 610 and a first electric actuating component 620. The first elastic seal 610 is arranged at the gas distribution communication hole 5 in the second gas distribution layer 2. In the natural state, the first elastic seal 610 closes the gas distribution communication hole 5. The first electric actuating component 620 is arranged on the first electric control member 9 outside the second gas distribution layer 2 and is connected to the first electric control member 9. It is the actuating component for opening the gas distribution communication hole 5. In this embodiment, the first electric control member 9 controls the power on and off of the first electric actuating component 620. When the first electric control member 9 supplies power to the first electric actuating component 620, the first electric actuating component 620 overcomes the elastic force of the first elastic seal 610 and opens the gas distribution communication hole 5, that is, opens the intake channel composed of the intake port 3, the first gas distribution layer 1, the gas distribution communication hole 5, the second gas distribution layer 2 and the pneumatic port 4 to supply gas to the pneumatic cavity.

[0041] In this embodiment, the opening of the first air release port 7 faces the first electric control member 9. The airflow through the first air release port 7 helps the first electric control member 9 to dissipate heat. A second elastic control component 8 is arranged at the position on the first electric control member 9 opposite to the first air release port 7. The second elastic control component 8 is provided with a second elastic seal 810 and a second electric actuating component 820. The second elastic seal 810 is arranged on the first electric control member 9 and cooperates with the first air release port 7. In the natural state, the second elastic seal 810 closes the first air release port 7. In this embodiment, the first electric control member 9 controls the power on and off of the second electric actuating component 820. The second electric actuating component 820 is arranged on the first electric control member 9 and is connected to the first electric control member 9. It is the actuating component for the second elastic seal 810 to open the first air release port 7. When the first electric control member 9 supplies power to the second electric actuating component 820, the second electric actuating component 820 overcomes the elastic force of the second elastic seal 810 and opens the first air release port 7, that is, opens the air release channel composed of the pneumatic port 4, the second gas distribution layer 2 and the first air release port 7, and the pneumatic cavity deflates.

[0042] As Figure 3 shown, in a preferred embodiment, the first electric control member 9 is arranged in parallel with the second gas distribution layer 2. The first elastic seal 610 includes a plugging portion 10 with one end cooperating with the gas distribution communication hole 5 and the other end sliding through the wall of the second gas distribution layer 2, and an elastic sealing portion 11 sleeved outside the plugging portion 10 with one end connected to the outer periphery of the upper part of the plugging portion 10 and the other end elastically abutted against the wall of the second gas distribution layer 2. The plugging portion 10 and the elastic sealing portion 11 are integrally formed. The plugging portion 10 is arranged perpendicular to the first electric control member 9 and the end of the plugging portion 10 passing through the wall of the second gas distribution layer 2 is connected to the first electric actuating component 620.

[0043] In this embodiment, the first electric control member 9 is arranged in parallel with the second air distribution layer 2; a through hole is provided on the side of the second air distribution layer 2 opposite to the air distribution communication hole 5. The first elastic seal 610 is provided with a plugging portion 10 and an elastic sealing portion 11. One end of the plugging portion 10 is provided with an end sealing surface 811 that cooperates with the air distribution communication hole 5, and one end slides through the through hole. An annular elastic sealing portion 11 is sleeved below the end sealing surface 811. One end of the elastic sealing portion 11 is arranged on the plugging portion 10 and elastically abuts against the side wall of the second air distribution layer 2 away from the air distribution connection hole. The elastic sealing portion 11 is used to seal the through hole to prevent gas from overflowing through the gap between the plugging portion and the through hole during air supply or when the pneumatic cavity is pressurized. The plugging portion 10 and the elastic sealing portion 11 are integrally formed, greatly improving the stability of the first elastic seal 610;

[0044] In this embodiment, the plugging portion 10 is arranged perpendicular to the first electric control member 9. One end of the plugging portion 10 passing through the through hole is connected to the first electric actuating assembly 620. In the natural state, the first elastic seal 610 closes the air distribution communication hole 5. When the first electric control member 9 supplies power to the first electric actuating assembly 620, the first electric actuating assembly 620 overcomes the elastic force of the elastic sealing portion 11 to open the air distribution communication hole 5, that is, to open the air intake channel composed of the air intake port 3, the first air distribution layer 1, the air distribution communication hole 5, the second air distribution layer 2, and the pneumatic port 4 to supply air to the pneumatic cavity.

[0045] As Figure 4 shown, in a preferred embodiment, the first electric control member 9 is arranged in parallel with the second air distribution layer 2; the first elastic seal 610 includes a seal member 12 with one end cooperating with the air distribution communication hole 5 and the other end sliding through the wall of the second air distribution layer 2, and an elastic member 13 cooperating with the seal member 12. The seal member 12 includes a stepped skeleton 1210, a sealing surface 1220 arranged on the upper part of the stepped skeleton 1210 and cooperating with the air distribution communication hole 5, and a guide sliding column 1230 arranged on the lower part of the stepped skeleton 1210 and sliding through the second air distribution layer 2. The elastic member 13 includes a spring 1310 sleeved outside the stepped skeleton 1210 and an elastic compression seal 1320 sleeved outside the guide sliding column 1230 and cooperating with the stepped skeleton 1210.

[0046] In this embodiment, the first electric control member 9 is arranged in parallel with the second air distribution layer 2; a perforation is provided on the side of the second air distribution layer 2 opposite to the air distribution communication hole 5. The first elastic seal 610 is provided with a seal 12 and an elastic member 13. One end of the seal 12 is matched with the air distribution communication hole 5 and the other end slides through the perforation. In this embodiment, the seal 12 is provided with a stepped skeleton 1210, a sealing surface 1220 and a guide sliding column 1230. The upper end of the stepped skeleton 1210 is provided with a sealing surface 1220 matched with the air distribution communication hole 5, and the lower end is provided with a guide sliding column 1230. The guide sliding column 1230 slides through the perforation. In this embodiment, the elastic member 13 is provided with a spring 1310 and an elastic compression seal 1320. Among them, the spring 1310 is sleeved on the stepped skeleton 1210 and one end is connected to the stepped skeleton 1210 and the other end is connected to the side wall of the second air distribution layer 2 far from the air distribution communication hole 5. The elastic compression seal 1320 is sleeved on the outside of the guide sliding column 1230. The elastic compression seal 1320 cooperating with the stepped skeleton 1210 can effectively seal the perforation, avoiding the gas from overflowing through the gap between the guide sliding column 1230 and the perforation when supplying gas or maintaining the pressure in the pneumatic cavity. The elastic compression seal 1320 can be an elastic plastic ring, a soft silicone ring, etc.

[0047] In this embodiment, the guide sliding column 1230 is arranged perpendicular to the first electric control member 9. One end of the guide sliding column 1230 passing through the perforation is connected to the first electric actuating assembly 620. In the natural state, the first elastic seal 610 closes the air distribution communication hole 5. When the first electric control member 9 supplies power to the first electric actuating assembly 620, the first electric actuating assembly 620 overcomes the elastic forces of the spring 1310 and the elastic compression seal 1320 to open the air distribution communication hole 5, that is, to open the air intake channel composed of the air intake port 3, the first air distribution layer 1, the air distribution communication hole 5, the second air distribution layer 2 and the pneumatic port 4 to supply gas to the pneumatic cavity.

[0048] As Figure 5 shown, in a preferred embodiment, one end of the blocking portion 10 passing through the second air distribution layer 2 or one end of the guide sliding column 1230 is provided with a first hanging chute 14. The first electric actuating assembly 620 includes a first electrode 621 and a second electrode 622 arranged on the first electric control member 9 and located on both sides of the blocking portion 10 or the guide sliding column 1230, and a first shape memory alloy wire 623 passing through the first hanging chute 14 and having two ends respectively connected to the first electrode 621 and the second electrode 622.

[0049] In this embodiment, a first hanging chute 14 is provided at one end of the plugging portion 10 passing through the second air distribution layer 2 or at one end of the guide sliding column 1230. The first hanging chute 14 is a connection hole for the first elastic seal 610 and the first electric actuating assembly 620. In this embodiment, the first electric actuating assembly 620 is provided with a first electrode 621, a second electrode 622 and a first shape memory alloy wire 623. The first electrode 621 and the second electrode 622 are arranged on the first electric control member 9 and symmetrically arranged on both sides of the plugging portion 10 or the guide sliding column 1230. The first shape memory alloy wire 623 passes through the first hanging chute 14 and its two ends are respectively connected to the first electrode 621 and the second electrode 622.

[0050] The first electrode 621 and the second electrode 622 are electrically connected to the first electric control member 9. When the first electric control member 9 does not power on the first electrode 621 and the second electrode 622, the first shape memory alloy wire 623 is in an extended state, and the first elastic seal portion 11 is in close contact with the air distribution communication hole 5, closing the air distribution communication hole 5, that is, closing the intake passage composed of the intake port 3, the first air distribution layer 1, the air distribution communication hole 5, the second air distribution layer 2 and the pneumatic port 4; when the first electric control member 9 supplies power to the first electrode 621 and the second electrode 622, the first shape memory alloy wire 623 is heated and transformed from martensite to austenite, and is in a contracted state. At this time, the first shape memory alloy wire 623 overcomes the elastic force of the elastic seal portion 11 or the spring 1310 to pull the plugging portion 10 or the stepped skeleton 1210, so that the first elastic seal 610 is separated from the air distribution communication hole 5, opening the air distribution communication hole 5, that is, opening the intake passage composed of the intake port 3, the first air distribution layer 1, the air distribution communication hole 5, the second air distribution layer 2 and the pneumatic port 4 to supply air to the pneumatic cavity.

[0051] As Figure 6 and Figure 7 shown, in a preferred embodiment, the second elastic seal 810 includes an end seal 811 that cooperates with the first air release port 7 and an elastic reset member 812 arranged on the first electric control member 9 and cooperating with the end seal 811. The end seal 811 is provided with a second hanging chute 811a. The second electric actuating assembly 820 includes a third electrode 821 and a fourth electrode 822 arranged on the first electric control member 9 and on both sides of the end seal 811, and a second shape memory alloy wire 823 passing through the second hanging chute 811a and having its two ends respectively connected to the third electrode 821 and the fourth electrode 822.

[0052] In this embodiment, the second elastic seal 810 is provided with an end seal 811 and an elastic reset member 812. Among them, the end seal 811 cooperates with the first air release port 7, and the elastic reset member 812 is arranged on the first electric control member 9 and is the key power member for the end seal 811 to close the first air release port 7. Preferably, the end seal 811 and the elastic reset member 812 are integrally formed, and the second elastic seal 810 is a hollow trapezoidal structure; the end seal 811 and the elastic reset member 812 can also be a split structure, that is, one end of the end seal 811 cooperates with the first air release port 7, and one end slides through the first electric control member 9, and the elastic reset member 812 is one of a reset spring and a spring plate arranged between the end seal 811 and the first electric control member 9; in this embodiment, the end seal 811 is provided with a second hanging chute 811a that cooperates with the second electric actuating assembly 820. The second electric actuating assembly 820 is provided with a third electrode 821, a fourth electrode 822 and a second shape memory alloy wire 823. The third electrode 821 and the fourth electrode 822 are symmetrically arranged on both sides of the second elastic seal 810. The second shape memory alloy wire 823 passes through the second hanging chute 811a, and both ends are respectively connected to the third electrode 821 and the fourth electrode 822. In this embodiment, one of the first electrode and the second electrode of the first electric actuating assembly is a negative electrode and the other is a positive electrode, one of the third electrode and the fourth electrode of the second electric actuating assembly is a negative electrode and the other is a positive electrode, and the first electric actuating assembly and the second electric actuating assembly can share a negative electrode.

[0053] When the first electric control member 9 does not energize the third electrode 821 and the fourth electrode 822, the second shape memory alloy wire 823 is in an extended state, and the end seal 811 is in close contact with the first air release port 7 under the action of the elastic reset member 812, closing the first air release port 7, that is, closing the air release channel formed by the pneumatic port 4, the second air distribution layer 2 and the first air release port 7; when the first electric control member 9 supplies power to the third electrode 821 and the fourth electrode 822, the second shape memory alloy wire 823 is heated and transformed from martensite to austenite, and is in a contracted state. At this time, the second shape memory alloy wire 823 overcomes the elastic force of the elastic reset member 812 to pull the end seal 811, so that the end seal 811 is separated from the first air release port 7, opening the first air release port 7, that is, opening the air release channel formed by the pneumatic port 4, the second air distribution layer 2 and the first air release port 7, realizing air release.

[0054] In this embodiment, the acting force of the second elastic seal 810 on the first air release port 7 is less than the maximum value of the gas pressure that the pneumatic cavity can withstand. When the air pressure in the pneumatic cavity is relatively large, that is, when it exceeds the pressure of the elastic reset member 812, the air flow can push the end seal 811 to squeeze the elastic reset member 812 to open the first air release port 7, realizing overflow air release, effectively avoiding overpressure damage of the pneumatic cavity.

[0055] As Figure 8As shown, in a preferred embodiment, a plurality of partition plates 15 are arranged in a vertically staggered manner in the first air distribution layer 1 and the second air distribution layer 2.

[0056] In this embodiment, a plurality of partition plates 15 are arranged in a vertically staggered manner in both the first air distribution layer 1 and the second air distribution layer 2. The partition plates 15 divide the first air distribution layer 1 and the second air distribution layer 2 into serpentine air channels, greatly reducing the impact of the air flow entering the first air distribution layer 1 on the first elastic seal 610 at the air distribution communication hole 5, and the impact of the air flow entering the second air distribution layer 2 on the second elastic seal 810 and the pneumatic cavity. At the same time, the noise generated by the air flow impact is greatly reduced.

[0057] As Figure 9 shown, a pneumatic massage control valve, characterized in that it comprises a third air distribution layer 16, a massage air inlet 17 arranged at one end of the third air distribution layer 16, a massage pneumatic port 18 arranged at the opposite end of the third air distribution layer 16 to the massage air inlet 17, a second air release port 19 arranged on the side wall of the third air distribution layer 16 and between the massage air inlet 17 and the massage pneumatic port 18, a third elastic control component 20 arranged outside the third air distribution layer 16 and cooperating with the second air release port 19, and a second electric control member 21 arranged on the outside of the third air distribution layer 16 and connected to the third elastic control component 20. The second air release port 19 opens towards the second electric control member 21. The third elastic control component 20 comprises a third elastic seal 2010 arranged on the second electric control member 21 and cooperating with the second air release port 19, and a third electro-actuating component 2020 arranged on the second electric control member 21 and cooperating with the third elastic seal 2010.

[0058] In this embodiment, the third air distribution layer 16 is a basic component of the pneumatic massage control valve and is an air flow channel connecting the air source and the pneumatic massage cavity. One end of the third air distribution layer 16 is provided with a massage air inlet 17, and the other end is provided with a massage pneumatic port 18. A second air release port 19 is provided on the side wall of the third air distribution layer 16 between the massage air inlet 17 and the massage pneumatic port 18. In this embodiment, a second electric control member 21 is provided outside the third air distribution layer 16. The second electric control member 21 is arranged in parallel with the third air distribution layer 16. The third elastic control assembly 20 is arranged on the second electric control member 21 and cooperates with the second air release port 19 to control the opening and closing of the second air release port 19; the second electric control member 21 is connected to the third elastic control assembly 20 and is a control component for controlling the power on and off of the third elastic control assembly 20. In this embodiment, the opening of the second air release port 19 faces the second electric control member 21, and the air flow through the second air release port 19 helps the heat dissipation of the second electric control member 21; the third elastic control assembly 20 is provided with a third elastic seal 2010 and a third electro-actuating assembly 2020. The third elastic seal 2010 is arranged on the second electric control member 21 and cooperates with the second air release port 19. In the natural state, the third elastic seal 2010 closes the second air release port 19; in this embodiment, the second electric control member 21 controls the power on and off of the third electro-actuating assembly 2020. The third electro-actuating assembly 2020 is arranged on the second electric control member 21 and is an actuating component for opening the second air release port 19 by the third elastic seal 2010. When the second electric control member 21 supplies power to the third electro-actuating assembly 2020, the third electro-actuating assembly 2020 overcomes the elastic force of the third elastic seal 2010 and opens the second air release port 19. In this embodiment, by controlling the supply of air through the air inlet 3 and the release of air through the second air release port 19, the inflation and deflation of the pneumatic massage cavity are realized, and thus the massage function of the massage cavity is realized.

[0059] As Figure 10 shown, in a preferred embodiment, the third elastic seal 2010 includes a sealing portion 2011 that cooperates with the second air release port 19 and an elastic reset portion 2012 that is arranged on the second electric control member 21 and cooperates with the sealing portion 2011. The sealing portion 2011 is provided with a third hanging chute 22. The third electro-actuating assembly 2020 includes a fifth electrode 2021 and a sixth electrode 2022 that are arranged on the second electric control member 21 and on both sides of the elastic reset portion 2012, and a third shape memory alloy wire 2023 that passes through the third hanging chute 22 and is connected to the fifth electrode 2021 and the sixth electrode 2022 at both ends.

[0060] In this embodiment, the third elastic seal 2010 is provided with a sealing portion 2011 and an elastic reset portion 2012. Among them, the sealing portion 2011 cooperates with the second air release port 19, and the elastic reset portion 2012 is arranged on the second electric control member 21. It is the key power member for the sealing portion 2011 to close the second air release port 19. Preferably, the sealing portion 2011 and the elastic reset portion 2012 are integrally formed, and the third elastic seal 2010 is a hollow trapezoidal structure; the sealing portion 2011 and the elastic reset portion 2012 can also be a split structure. One end of the sealing portion 2011 cooperates with the second air release port 19, and the other end slides through the second electric control member 21. The elastic reset portion 2012 is one of a spring 1310 and a spring piece arranged between the sealing portion 2011 and the second electric control member 21; in this embodiment, the sealing portion 2011 is provided with a third hanging chute 22 that cooperates with the third electric actuating assembly 2020. The third electric actuating assembly 2020 is provided with a fifth electrode 2021, a sixth electrode 2022, and a third shape memory alloy wire 2023. The fifth electrode 2021 and the sixth electrode 2022 are symmetrically arranged on both sides of the third elastic seal 2010. The third shape memory alloy wire 2023 passes through the third hanging chute 22 and is respectively connected to the fifth electrode 2021 and the sixth electrode 2022 at both ends.

[0061] When the second electric control member 21 does not energize the fifth electrode 2021 and the sixth electrode 2022, the third shape memory alloy wire 2023 is in an extended state. The sealing portion 2011 is in close contact with the second air release port 19 under the action of the elastic reset portion 2012, closing the second air release port 19 to achieve inflation; when the second electric control member 21 supplies power to the fifth electrode 2021 and the sixth electrode 2022, the third shape memory alloy wire 2023 is heated and transformed from martensite to austenite, being in a contracted state. At this time, the third shape memory alloy wire 2023 overcomes the elastic force of the elastic reset portion 2012 to pull the sealing portion 2011, so that the sealing portion 2011 is separated from the second air release port 19 to achieve air release.

[0062] In this embodiment, the acting force of the third elastic seal 2010 on the second air release port 19 is less than the maximum value of the gas pressure that the pneumatic massage cavity can bear. When the air pressure in the pneumatic massage cavity is relatively large, that is, when it exceeds the pressure of the elastic reset portion 2012, the air flow can push the sealing portion 2011 to squeeze the elastic reset member 812 to open the second air release port 19 to achieve overflow air release, effectively avoiding overpressure damage of the pneumatic massage cavity.

[0063] As Figure 11 shown, a multi-connected pneumatic control unit is characterized by including a housing 23 and a plurality of pneumatic control valve groups as described in any one of the preceding claims arranged in the housing 23, and the first air distribution layers 1 between adjacent two pneumatic control valve groups are interconnected.

[0064] In this embodiment, the multi-channel pneumatic control unit is provided with a housing 23 and a plurality of pneumatic control valve groups. The pneumatic control valve groups are arranged in parallel in the housing 23. The first air distribution layers 1 between two adjacent pneumatic control valve groups are in air path communication with each other. In this embodiment, each pneumatic control valve group may be provided with an air inlet 3, or may be provided with air inlets 3 less than the number of pneumatic control valve groups. Preferably, the number of air inlets 3 is 2. The air inlet 3 is communicated with the first air distribution layer 1 of the pneumatic control valve group. Each second air distribution layer 2 of each pneumatic control valve group is provided with an air port 4 adapted to the pneumatic cavity.

[0065] As Figure 12 shown, a multi-channel pneumatic control unit is characterized by comprising a housing 23, a plurality of the above-mentioned pneumatic control valve groups arranged in parallel at one end of the housing 23, and a plurality of the above-mentioned pneumatic massage control valves arranged at the other end of the housing 23 and parallel to the pneumatic control valve groups. The first air distribution layers 1 between two adjacent pneumatic control valve groups are communicated with each other. The pneumatic massage control valves are symmetrically arranged in the housing 23, and the symmetrically arranged pneumatic massage control valves are communicated with each other; the pneumatic massage control valves located on one side of the housing 23 are communicated with each other; the first air distribution layer 1 of the pneumatic control valve group adjacent to the pneumatic massage control valve is communicated with the pneumatic massage control valves located on one side of the housing 23.

[0066] In this embodiment, the multi-channel pneumatic control unit is provided with a housing 23, a plurality of pneumatic control valve groups and a plurality of pneumatic massage control valves. Among them, the pneumatic control valve groups are arranged in parallel at one end of the housing 23, and the first air distribution layers 1 between two adjacent pneumatic control valve groups are in air path communication with each other; the pneumatic massage control valves are arranged at the other end of the housing 23 and are parallel to the pneumatic control valve groups. In this embodiment, the pneumatic massage control valves are symmetrically arranged in the housing 23, and the symmetrically arranged pneumatic massage control valves are in air path communication with each other. In this embodiment, the pneumatic massage control valves located on the same side of the housing 23 are in air path communication with each other, and the third air distribution layer 16 of the pneumatic massage control valve adjacent to the pneumatic control valve group is in air path communication with the first air distribution layer 1 of the adjacent pneumatic control valve group. In this embodiment, each pneumatic control valve group may be provided with an air inlet 3, or may be provided with air inlets 3 less than the number of pneumatic control valve groups. Preferably, the number of air inlets 3 is 1. The air inlet 3 is communicated with the first air distribution layer 1 of one of the pneumatic control valve groups. In this embodiment, each second air distribution layer 2 of each pneumatic control valve group is provided with an air port 4 adapted to the pneumatic cavity, and each pneumatic massage control valve group is provided with a massage air port 18 adapted to the pneumatic massage cavity. In this embodiment, the multi-channel pneumatic control unit can realize the inflation and support function of the pneumatic cavity through the pneumatic control valve group, and can also realize the massage function of the pneumatic massage cavity through the pneumatic massage control valve.

[0067] The above has described the embodiments of the present application in detail, but the above content is only the preferred embodiments of the present application and cannot be considered as limiting the scope of implementation of the present application. All equivalent changes and improvements made according to the scope of application of the present application should still fall within the scope covered by the patent of the present application.

Claims

1. A pneumatic control valve group, characterized in that, It includes a first air distribution layer (1) and a second air distribution layer (2), an air inlet (3) provided at one end of the first air distribution layer (1), a pneumatic port (4) provided at one end of the second air distribution layer (2), an air distribution communication hole (5) provided between the first air distribution layer (1) and the second air distribution layer (2), a first elastic control assembly (6) provided in the second air distribution layer (2) and cooperating with the air distribution communication hole (5), a first air release port (7) provided on the side wall of the second air distribution layer (2) away from the first air distribution layer (1), a second elastic control assembly (8) provided outside the second air distribution layer (2) and cooperating with the first air release port (7), and a first electric control member (9) provided outside the second air distribution layer (2) on the side away from the first air distribution layer (1) and connected to the first elastic control assembly (6) and the second elastic control assembly (8); The first elastic control assembly (6) includes a first elastic seal body (610) provided in the second air distribution layer (2) and cooperating with the air distribution communication hole (5) and a first electric actuating assembly (620) provided outside the second air distribution layer (2) and cooperating with the first elastic seal body (610), and the first electric actuating assembly (620) is provided on the first electric control member (9); The opening of the first air release port (7) faces the first electric control member (9), and the second elastic control assembly (8) includes a second elastic seal body (810) provided on the first electric control member (9) and cooperating with the first air release port (7) and a second electric actuating assembly (820) provided on the first electric control member (9) and cooperating with the second elastic seal body (810); The air inlet, the first air distribution layer, the air distribution communication hole, the second air distribution layer and the pneumatic port form the air inlet passage of the pneumatic control valve group, and the pneumatic port, the second air distribution layer and the first air release port form the air release passage of the pneumatic control valve group.

2. The pneumatic control valve group according to claim 1, characterized in that, The first electric control member (9) is arranged in parallel with the second air distribution layer (2); the first elastic seal body (610) includes a plugging portion (10) with one end cooperating with the air distribution communication hole (5) and the other end sliding through the wall of the second air distribution layer (2) and an elastic sealing portion (11) sleeved outside the plugging portion (10) and having one end connected to the outer periphery of the upper part of the plugging portion (10) and the other end elastically abutted against the wall of the second air distribution layer (2). The plugging portion (10) and the elastic sealing portion (11) are integrally formed. The plugging portion (10) is arranged perpendicular to the first electric control member (9), and one end of the plugging portion (10) passing through the wall of the second air distribution layer (2) is connected to the first electric actuating assembly (620).

3. The pneumatic control valve group according to claim 1, characterized in that, The first electric control member (9) is arranged in parallel with the second air distribution layer (2); the first elastic seal (610) includes a seal member (12) with one end cooperating with the air distribution communication hole (5) and the other end sliding through the wall of the second air distribution layer (2), and an elastic member (13) cooperating with the seal member (12). The seal member (12) includes a stepped skeleton (1210), a sealing surface (1220) arranged on the upper part of the stepped skeleton (1210) and cooperating with the air distribution communication hole (5), and a guide sliding column (1230) arranged on the lower part of the stepped skeleton (1210) and sliding through the second air distribution layer (2). The elastic member (13) includes a spring (1310) sleeved on the outer side of the stepped skeleton (1210) and an elastic compression seal body (1320) sleeved on the outer side of the guide sliding column (1230) and cooperating with the stepped skeleton (1210).

4. A pneumatic control valve group according to claim 2 or 3, characterized in that, One end of the plugging portion (10) passing through the second air distribution layer (2) or one end of the guide sliding column (1230) is provided with a first hanging chute (14). The first electric actuating assembly (620) includes a first electrode (621) and a second electrode (622) arranged on the first electric control member (9) and located on both sides of the plugging portion (10) or the guide sliding column (1230), and a first shape memory alloy wire (623) passing through the first hanging chute (14) and having two ends respectively connected to the first electrode (621) and the second electrode (622).

5. The pneumatic control valve group according to claim 4, characterized in that, The second elastic seal (810) includes an end seal (811) cooperating with the first air release port (7) and an elastic reset member (812) arranged on the first electric control member (9) and cooperating with the end seal (811). The end seal (811) is provided with a second hanging chute (811a). The second electric actuating assembly (820) includes a third electrode (821) and a fourth electrode (822) arranged on the first electric control member (9) and located on both sides of the end seal (811), and a second shape memory alloy wire (823) passing through the second hanging chute (811a) and having two ends respectively connected to the third electrode (821) and the fourth electrode (822).

6. The pneumatic control valve group according to claim 5, wherein, A plurality of partition plates (15) are arranged in the first air distribution layer (1) and the second air distribution layer (2) in a vertically staggered manner.

7. A multi-way pneumatic control unit, characterized in that, It includes a housing (23) and a plurality of pneumatic control valve groups as described in any one of claims 1-6 arranged in the housing (23). The first air distribution layers (1) of adjacent two pneumatic control valve groups are communicated with each other.

8. A multi-way pneumatic control unit, characterized in that, It includes a housing (23), a plurality of pneumatic control valve groups as described in any one of claims 1-6 arranged in parallel at one end of the housing (23), and a plurality of pneumatic massage control valves arranged at the other end of the housing (23) and parallel to the pneumatic control valve groups. The first air distribution layers (1) of adjacent two pneumatic control valve groups are connected and communicated. The pneumatic massage control valves are symmetrically arranged in the housing (23), and the symmetrically arranged pneumatic massage control valves are communicated with each other; The pneumatic massage control valves located on one side of the housing (23) communicate with each other; the first air distribution layer (1) of the pneumatic control valve group adjacent to the pneumatic massage control valve communicates with the pneumatic massage control valve located on one side of the housing (23).

9. The multi-pneumatic control unit according to claim 8, wherein, The pneumatic massage control valve includes a third air distribution layer (16), a massage air inlet (17) provided at one end of the third air distribution layer (16), a massage pneumatic port (18) provided at the opposite end of the third air distribution layer (16) from the massage air inlet (17), a second air release port (19) provided on the side wall of the third air distribution layer (16), a third elastic control component (20) provided outside the third air distribution layer (16) and cooperating with the second air release port (19), and a second electric control member (21) provided outside the third air distribution layer (16) and connected to the third elastic control component (20). The second air release port (19) opens towards the second electric control member (21). The third elastic control component (20) includes a third elastic seal body (2010) provided on the second electric control member (21) and cooperating with the second air release port (19), and a third electro-actuating component (2020) provided on the second electric control member (21) and cooperating with the third elastic seal body (2010).

10. A multi-pneumatic control unit according to claim 9, characterized in that, The third elastic seal body (2010) includes a sealing portion (2011) cooperating with the second air release port (19) and an elastic reset portion (2012) provided on the second electric control member (21) and cooperating with the sealing portion (2011). The sealing portion (2011) is provided with a third hanging sliding groove (22). The third electro-actuating component (2020) includes a fifth electrode (2021) and a sixth electrode (2022) provided on the second electric control member (21) and located on both sides of the elastic reset portion (2012), and a third shape memory alloy wire (2023) passing through the third hanging sliding groove (22) and having two ends respectively connected to the fifth electrode (2021) and the sixth electrode (2022).

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