Fluid two-way non-constant-speed valve and two-way non-constant-speed pipeline conveying structure

Abstract

The invention provides a fluid two-way non-constant-speed valve and a two-way non-constant-speed pipe conveying structure, the fluid two-way non-constant-speed valve comprises an annular petal-shaped structure, when fluid flows from a second circulation opening to a first circulation opening, the annular petal-shaped structure deforms towards the side away from a circulation space, the inner diameter of the first circulation opening is increased, and the inner diameter of the second circulation opening is increased. The fluid flow velocity is a first flow velocity; when the fluid flows from the first circulation opening to the second circulation opening, the annular petal-shaped structure is buckled inwards towards the side close to the circulation space, the inner diameter of the first circulation opening is reduced, the fluid flow speed is a second flow speed, and the first flow speed is larger than the second flow speed; when the fluid flows in different directions, the inner diameter of the first circulation opening is changed, so that the flow speeds of the fluid are different, and compared with the prior art that the forward flow speed and the reverse flow speed are consistent, the inflation duration of the air bag can be obviously shortened, and the comfort of passengers is improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile seats, and in particular to a fluid bidirectional unequal-speed valve and a bidirectional unequal-speed pipe structure. Background Art

[0002] In modern car seat internal massage systems, the operation of the gas circuit has a specific pattern in terms of gas flow. The gas circuit system is responsible for delivering gas to the seat airbag to achieve the massage function, and its forward and reverse gas flow rates currently show consistent characteristics. This consistency means that the gas flow rate changes synchronously regardless of the working state. When the entire system is set to fast working mode, the forward and reverse gas flow rates will become faster; when it is in slow working mode, the forward and reverse gas flow rates will slow down at the same time.

[0003] This situation where the forward and reverse gas flow rates are consistent in the air path brings obvious problems to the inflation process of the seat airbag. Since it is impossible to achieve fast in and slow out of the gas, the inflation time of the airbag is unnecessarily extended. For example, when the airbag needs to be inflated quickly to provide a timely massage effect, the reverse gas cannot flow out at a slower rate, causing the internal pressure of the airbag to drop faster, and the amount of gas required to inflate the airbag again becomes more, thereby extending the time to reach the appropriate inflation volume. This situation directly affects the passenger experience of the seat massage function, because passengers expect to feel the massage effect quickly after starting the massage function, and the longer inflation time will greatly reduce this experience, reducing the comfort and satisfaction of passengers when using the car seat massage function. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a fluid bidirectional unequal-speed valve and a bidirectional unequal-speed pipeline structure.

[0005] In a first aspect, the present application provides a fluid bidirectional unequal speed valve, comprising: An annular petal structure, wherein the annular petal structure has a first flow opening at one end and a second flow opening at the other end, and has a flow space inside; the area of ​​the first flow opening is smaller than the area of ​​the second flow opening, and the inner diameter of the flow space gradually decreases from the second flow opening to the first flow opening; When the fluid flows from the second flow opening to the first flow opening, the fluid flows from the second flow opening to the flow space and passes through the flow space, and flows out from the first flow opening, the annular petal structure at the edge of the first flow opening is deformed away from the flow space, and the inner diameter of the first flow opening increases. At this time, the fluid flow rate is the first flow rate; When the fluid flows from the first circulation opening to the second circulation opening, the fluid flows from the first circulation opening to the circulation space and passes through the circulation space, and flows out from the second circulation opening. The annular petal-shaped structure at the edge of the first circulation opening is deformed toward the circulation space side, and the inner diameter of the first circulation opening is reduced. At this time, the fluid flow rate is the second flow rate; the first flow rate is greater than the second flow rate.

[0006] According to the technical solution provided in the embodiment of the present application, an annular petal structure is provided with an annular retaining wall on the side wall near the first flow opening, and a turbulent flow space is formed between the annular retaining wall and the annular petal structure. When the fluid flows from the second flow opening to the first flow opening, the annular petal structure at the edge of the first flow opening is deformed toward the turbulent flow space. When the fluid flows from the first flow opening to the second flow opening, the annular petal structure at the edge of the first flow opening is deformed toward the flow space, and the fluid enters the turbulent flow space to cause disturbance to the fluid flow.

[0007] According to the technical solution provided in the embodiment of the present application, at least one deformation opening is provided at the top of the annular petal structure, and there is a first angle between the extension direction of the deformation opening and the extension line direction of the center line of the first circulation opening, and the opening direction of the first angle is toward the circulation space, and the deformation opening divides the annular petal structure into at least two petal structures; when the fluid flows from the second circulation opening to the first circulation opening, the fluid blows the top of each petal structure to swing toward the side of the turbulent space; when the fluid flows from the first circulation opening to the second circulation opening, the fluid blows the top of each petal structure to swing toward the side of the circulation space.

[0008] According to the technical solution provided in the embodiment of the present application, when the annular petal structure is provided with the annular retaining wall outside, each of the petal structures is provided with an outer wall buttress close to the spoiler space side, and the outer wall buttress is used to suppress the vibration of the petal structure under the action of airflow.

[0009] According to the technical solution provided in the embodiment of the present application, each of the petal structures is provided with a supporting structure close to the circulation space, and the supporting structure is used to support the petal structure.

[0010] According to the technical solution provided in the embodiment of the present application, the support structure includes a vertical support, and the support structure includes a vertical support. The vertical support is a third protrusion arranged on the petal structure, and the extension direction of the third protrusion is parallel to the extension line direction of the center line of the first flow opening.

[0011] According to the technical solution provided in the embodiment of the present application, the support structure includes a transverse support, and the transverse support includes a fan-shaped portion with one end arranged on the petal structure. In the natural state, all the fan-shaped portions form a first through hole with the same inner diameter as the first flow opening at one end away from the petal structure, and the axis extension line of the first through hole is in the same straight line as the axis extension line of the first flow opening; when the airflow flows from the first flow opening to the second flow opening, the transverse support is used to support the petal structure to prevent the petal structure from buckling inward and closing the first flow opening.

[0012] According to the technical solution provided in the embodiment of the present application, in a natural state, the curvature of the annular petal structure composed of all the petal structures tends to.

[0013] According to the technical solution provided in the embodiment of the present application, an inner wall buttress is provided on the side wall of the petal structure close to the second flow opening, and the inner wall buttress has an inner wall abutment end away from the end of the petal structure; when the fluid flows from the first flow opening to the second flow opening, the top of the petal structure is blown to swing toward the side of the flow space, and the inner wall abutment end abuts against the inner wall of the annular retaining wall.

[0014] In a second aspect, the present application provides a bidirectional unequal-speed pipeline structure, in which the bidirectional unequal-speed fluid valve as described above is provided.

[0015] In summary, the present application proposes a fluid bidirectional unequal-speed valve, comprising a first flow opening at one end and a second flow opening at the other end, an annular petal structure having a flow space inside, and the area of ​​the first flow opening is smaller than the area of ​​the second flow opening, and the inner diameter of the flow space gradually decreases from the second flow opening to the first flow opening; when the fluid flows from the second flow opening to the first flow opening, the annular petal structure deforms toward the side away from the flow space, and the inner diameter of the first flow opening increases, and the fluid flow rate is the first flow rate at this time; when the fluid flows from the first flow opening to the second flow opening, the annular petal structure buckles inward toward the side close to the flow space, the inner diameter of the first flow opening decreases, and the fluid flow rate is the second flow rate, and the first flow rate is greater than the second flow rate; when the fluid of the present application flows in different directions, the inner diameter of the first flow opening changes, resulting in different fluid flow rates, so, compared with the consistent forward and reverse flow rates in the prior art, the inflation time of the air bag can be significantly shortened, and the comfort of the passengers can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a fluid bidirectional unequal velocity valve without an annular retaining wall provided in an embodiment of the present application; Figure 2A schematic diagram of the structure of a fluid bidirectional unequal-velocity valve without an annular retaining wall and having a deformable opening provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of a two-way unequal-speed valve for fluids with different deformation opening lengths provided in an embodiment of the present application; Figure 4 A schematic diagram of the structure of a fluid bidirectional unequal velocity valve when the fluid is flowing in the forward direction provided in an embodiment of the present application; Figure 5 A schematic diagram of the structure of a fluid bidirectional unequal velocity valve when the fluid flows in reverse direction provided in an embodiment of the present application; Figure 6 A schematic structural diagram of a fluid bidirectional unequal velocity valve having an annular retaining wall and a deformable opening provided in an embodiment of the present application; Figure 7 Provided in the embodiments of this application Figure 6 Stereoscopic image of Figure 8 A schematic structural diagram of a fluid bidirectional unequal velocity valve with an outer wall buttress provided in an embodiment of the present application; Fig. 9 Provided in the embodiments of this application Figure 8 Stereoscopic image of Fig.10 A schematic diagram of the structure of a fluid bidirectional unequal velocity valve with a vertical outer wall buttress having a relatively large deformation opening provided in an embodiment of the present application; Fig.11 Provided in the embodiments of this application Fig.10 Stereoscopic image of Fig.12 A schematic diagram of a structure of a fluid bidirectional unequal velocity valve with a horizontal outer wall buttress having a large deformation opening provided in an embodiment of the present application Fig.13 A schematic structural diagram of a fluid bidirectional unequal-speed valve having a petal structure with a first protrusion provided in an embodiment of the present application; Fig.14 A schematic structural diagram of a fluid bidirectional unequal velocity valve with vertical support provided in an embodiment of the present application; Fig.15 Provided in the embodiments of this application Fig.14 Stereoscopic image of Fig.16 A schematic structural diagram of a fluid bidirectional unequal-speed valve with lateral support provided in an embodiment of the present application; Fig.17 A schematic diagram of the structure of a fluid bidirectional unequal velocity valve with an annular petal structure having a curvature approaching zero provided in an embodiment of the present application; Fig.18 A schematic structural diagram of a fluid bidirectional unequal velocity valve with an outer wall buttress and an inner wall buttress provided in an embodiment of the present application; Fig.19 Provided for the embodiments of this application Fig.18 Stereoscopic image of Fig. 20 A schematic diagram of the structure of a fluid bidirectional unequal-speed valve having flow through holes on a petal structure provided in an embodiment of the present application; Fig.21 A schematic diagram of the structure of an integrated quick-connect plug provided in an embodiment of the present application; Fig. 22 for Fig.21 A partial enlarged view of middle A; Fig.23 A schematic diagram of the structure of a multi-connection quick-plug provided in an embodiment of the present application; Fig.24 for Fig.23 A partial enlarged view of B in the middle; Fig.25 A schematic diagram of the structure of a bidirectional unequal velocity valve for forward flow of fluid with multiple annular petal structures provided in an embodiment of the present application; Fig.26 A schematic diagram of the structure of a bidirectional unequal velocity valve for reverse flow of fluid with multiple annular petal structures provided in an embodiment of the present application; Fig. 27 A three-dimensional schematic diagram of a fluid bidirectional unequal-speed valve having multiple annular petal structures provided in an embodiment of the present application; Fig.28 A schematic diagram of the structure of an air pipe with a fluid bidirectional unequal-speed valve provided in an embodiment of the present application.

[0017] The text annotations in the figure represent: 1. Annular petal structure; 11. First flow opening; 12. Flow space; 13. Deformation opening; 14. Petal structure; 141. First protrusion; 15. Flow through hole; 16. Second flow opening; 2. Annular retaining wall; 21. Disturbing flow space; 22. Upper annular retaining wall; 23. Lower annular retaining wall; 24. Second protrusion; 3. Outer wall buttress; 31. Outer wall abutment end; 41. Vertical support; 42. Horizontal support; 421. Fan-shaped part; 422. First through hole; 5. Inner wall buttress; 51. Inner wall abutment end; 61. Air nozzle; 62. Quick-plug male connector; 63. Quick-plug female connector; 7. Air pipe; 8. Fluid bidirectional unequal speed valve; 9. Control component. DETAILED DESCRIPTION

[0018] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0019] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] Example 1 As the technical problem mentioned in the background technology, the present application proposes a fluid bidirectional unequal speed valve, such as Figure 1 As shown, including: An annular petal structure 1, wherein the annular petal structure has a first flow opening at one end and a second flow opening at the other end, and a flow space 12 is provided inside the annular petal structure; the area of ​​the first flow opening 11 is smaller than the area of ​​the second flow opening 16, and the inner diameter of the flow space 12 gradually decreases from the second flow opening 16 to the first flow opening 11; The annular petal-shaped structure 1 is in the shape of an inverted bowl, and is a thin sheet structure made of silicone or rubber. When subjected to external force, the flow opening 11 will be slightly deformed. When the fluid flows from the second flow opening 16 to the first flow opening 11, the fluid flows from the second flow opening 16 to the flow space 12 and passes through the flow space 12, and flows out from the first flow opening 11. The annular petal structure at the edge of the first flow opening 11 is deformed away from the flow space 12, and the inner diameter of the first flow opening 11 increases. At this time, the fluid flow rate is the first flow rate; When the fluid flows from the second flow opening 16 to the first flow opening 11, it is recorded as positive flow. The first flow opening 11 of the annular petal-shaped structure 1 is subjected to a lifting force from bottom to top, and the first flow opening 11 of the annular petal-shaped structure 1 is slightly deformed, so the inner diameter of the first flow opening 11 increases. Figure 1 As shown, the dotted line represents the state after the inner diameter of the first flow opening 11 is increased; When the fluid flows from the first flow opening 11 to the second flow opening 16, it is recorded as reverse flow. The fluid flows from the first flow opening 11 to the flow space 12 and passes through the flow space 12, and flows out from the second flow opening 16. The annular petal structure at the edge of the first flow opening 11 is deformed toward the flow space 12, and the inner diameter of the first flow opening 11 is reduced. At this time, the fluid flow rate is the second flow rate, and the first flow rate is greater than the second flow rate.

[0021] When the fluid flows from the first circulation opening 11 to the second circulation opening 16, the first circulation opening 11 of the annular petal-shaped structure 1 is subjected to downward pressure from top to bottom, and the first circulation opening 11 of the annular petal-shaped structure 1 has a slight inward deformation, so the inner diameter of the first circulation opening 11 is reduced; therefore, the first flow rate is greater than the second flow rate. The present application achieves that when the fluid flows forward and reversely, the inner diameter of the first circulation opening 11 changes through the shape of the inverted bowl of the annular petal-shaped structure 1, resulting in the first flow rate and the second flow rate being different. Therefore, compared with the prior art in which the forward and reverse flow rates are consistent, the inflation time of the airbag can be significantly shortened, thereby improving the comfort of the passengers.

[0022] In a preferred embodiment, an annular petal-shaped structure 1 is provided with an annular retaining wall 2 on the side wall near the first flow opening 11, and a turbulent flow space 21 is formed between the annular retaining wall 2 and the annular petal-shaped structure 1. When the fluid flows from the second flow opening 16 to the first flow opening 11, the annular petal-shaped structure 1 at the edge of the first flow opening 11 is deformed toward the turbulent flow space 21. When the fluid flows from the first flow opening 11 to the second flow opening 16, the annular petal-shaped structure 1 at the edge of the first flow opening 11 is deformed toward the flow space 12, and the fluid enters the turbulent flow space 21 to cause disturbance to the fluid flow.

[0023] Please refer to Figure 4 As shown in the figure, the top of the annular retaining wall 2 is higher than the top of the annular petal structure 1, so as to avoid air leakage. When the fluid flows in the forward direction, the bypass space 21 does not affect its flow rate. It is only because the top of the annular petal structure 1 is slightly opened at the first flow opening 11 that the inner diameter of the first flow opening 11 is increased, thereby increasing the flow rate. The arrow in the figure indicates the flow direction of the fluid, and the dotted line indicates the state of the annular petal structure in the free state; Figure 5 As shown, when the fluid flows in the reverse direction, the first flow opening 11 of the annular petal structure 1 is inwardly buckled so that the inner diameter of the first flow opening 11 is reduced, thereby reducing the fluid flow rate. The fluid will enter the flow space 21 and rebound when it hits the inner wall of the annular retaining wall 2 and the outer wall of the annular petal structure 1, forming airflow disturbance, further reducing the flow rate of the fluid. The arrow in the figure is the fluid flow direction, and the dotted line is the state of the annular petal structure 1 in a free state.

[0024] In a preferred embodiment, at least one deformation opening 13 is provided at the top of the annular petal structure 1, and a first angle is formed between the extension direction of the deformation opening 13 and the extension direction of the center line of the first circulation opening 11, and the opening direction of the first angle is toward the circulation space 12, and the deformation opening 13 divides the annular petal structure 1 into at least two petal structures 14; when the fluid flows from the second circulation opening 16 to the first circulation opening 11, the fluid blows the top of each petal structure 14 to swing toward the side of the turbulent space 21; when the fluid flows from the first circulation opening 11 to the second circulation opening 16, the fluid blows the top of each petal structure 14 to swing toward the side of the circulation space 12.

[0025] Please refer to Figure 2-Figure 3 , Figure 6-Figure 7 Optionally, the annular petal structure 1 is provided with a plurality of the deformation openings 13 in a circumferential array. By providing the deformation openings 13, the top of each petal structure 14 is deformed more after being subjected to force than the annular petal structure 1 without the deformation openings 13, thereby further improving the difference between the forward flow velocity and the reverse flow velocity. Optionally, as Figure 2 As shown, the lengths of all the deformation openings are the same, as Figure 3 As shown, the lengths of the deformation openings are different.

[0026] Furthermore, when the thickness of the petal structure 14 is large, its vibration is small after being subjected to force, so the fluid flow rate is relatively stable and it is not easy to generate noise. When the length of the petal structure 14 is small, its vibration is also relatively small. However, if the length of the petal structure 14 is small, the deformation of the petal structure 14 will also be small, and the difference between the forward flow rate and the reverse flow rate will be smaller. The selection can be made according to actual needs.

[0027] In addition, the width of the deformation opening is not limited. Figure 10-11 As shown, the deformation opening is wider, so no matter the fluid flows forward or reverse, the obstruction to the airflow is smaller and the flow rate is larger.

[0028] In a preferred embodiment, when an annular retaining wall 2 is provided outside the annular petal structure 1, each of the petal structures 14 is provided with an outer wall buttress 3 near the disturbing flow space 21, and the outer wall buttress 3 is used to suppress the vibration of the petal structure 14 under the action of airflow.

[0029] Please refer to Figure 8-Figure 15 As shown, when the fluid flows in the reverse direction, the top of each petal structure 14 opens outward. When the outer wall buttress 3 is provided on the petal structure 14, the weight of the petal structure 14 is increased, thereby suppressing the vibration of the petal structure 14.

[0030] Furthermore, the outer wall buttress 3 is an arc-shaped sheet structure, one end of the outer wall buttress 3 is connected to the petal structure 14, and the other end is suspended. Optionally, there is a second angle between the extension direction of the outer wall buttress 3 and the vertical direction, and the opening of the second angle is upward, that is, the outer wall buttress 3 is inclined toward the annular retaining wall 2 at the end away from the petal structure 14, and the outer wall buttress 3 is away from the petal structure 14. The end has an outer wall abutment end 31; when the deformation amount of the top end of the petal structure 14 opening outward is large, the outer wall abutment end 31 contacts the inner wall of the annular retaining wall 2, and the contact is line-to-surface contact. Compared with the surface-to-surface contact directly through the side wall of the petal structure 14 and the side wall of the annular retaining wall 2, the contact area is reduced, thereby reducing the noise generated during contact. The extension direction of the outer wall buttress 3 is not fixed, and it is sufficient that when the deformation amount of the top of the petal structure 14 opening outward is large, the outer wall abutment end 31 contacts the annular retaining wall 2, such as Figure 10-12 As shown, the outer wall buttress 3 can be arranged vertically or horizontally.

[0031] Please refer to Fig.13 As shown, in a preferred embodiment, each of the petal structures 14 is provided with a first protrusion 141 on the side wall close to the circulation space 12 near the first circulation opening 11, and the first protrusion 141 is a curved surface away from the petal structure 14. In a natural state, all the first protrusions 141 form a ring shape. The first protrusion 141 is used to increase the weight of the petal structure 14, thereby suppressing the vibration of the petal structure 14.

[0032] In a preferred embodiment, each of the petal structures 14 is provided with a supporting structure near the circulation space 12 , and the supporting structure is used to support the petal structure 14 .

[0033] Among them, since the petal structure 14 is in the form of a thin sheet and has a small weight, and each petal structure 14 exists independently through the deformation opening 13, it is easy to vibrate when subjected to external force, making the fluid flow rate unstable. The supporting structure is used to support the petal structure 14 to prevent it from vibrating.

[0034] In a preferred embodiment, the support structure includes a vertical support 41 , which is a third protrusion provided on the petal structure 14 , and an extension direction of the third protrusion is parallel to the extension direction of the center line of the first flow opening 11 .

[0035] Please refer to Figure 14-15 As shown, the vertical support 41 is equivalent to the reinforcing rib of the petal structure 14, which supports the petal structure 14 and prevents the petal structure 14 from swinging randomly; wherein, the structure of the vertical support 41 is not limited as long as it can play a supporting role.

[0036] In a preferred embodiment, the support structure includes a transverse support 42, and the transverse support 42 includes a fan-shaped portion 421 with one end arranged on the petal structure 14. In a natural state, all the fan-shaped portions 421 form a first through hole 422 with the same inner diameter as the first circulation opening 11 at one end away from the petal structure 14, and the axis extension line of the first through hole 422 is in the same straight line as the axis extension line of the first circulation opening 11; when the air flow flows from the first circulation opening 11 to the second circulation opening 16, the transverse support 42 is used to support the petal structure 14 to prevent the petal structure 14 from buckling inward and closing the first circulation opening 11.

[0037] Please refer to Fig.16 As shown, the lateral support 42 is arranged on the middle inner wall of the petal structure 14. When the deformation opening 13 is very narrow and negligible, all the fan-shaped portions 421 form a disk with a first through hole 422 in the middle. Since the fan-shaped portions 421 are mutually restricted, the inner diameter of the first through hole 422 can only increase but not decrease compared to the natural state. Therefore, when the fluid flows in the reverse direction, the fan-shaped portions 421 will not gather inward, thereby supporting the petal structure 14 and avoiding inward buckling.

[0038] In a preferred embodiment, in a natural state, the curvature of the annular petal structure 1 composed of all the petal structures 14 approaches zero.

[0039] Please refer to Figure 17-Figure 19 As shown, the cross-section of the first flow opening 11 is square, and optionally, the annular petal structure 1 is a downward curved surface with a very small curvature; all the deformation openings 13 form a cross, that is, the annular petal structure 1 forms four petal structures 14 through the deformation openings 13.

[0040] In a preferred embodiment, an inner wall buttress 5 is provided on the side wall of the petal structure 14 close to the second flow opening, and the inner wall buttress 5 has an inner wall abutment end 51 away from the end of the petal structure 14; when the fluid flows from the first flow opening 11 to the second flow opening 16, the top end of the petal structure 14 is blown to swing toward the side of the flow space 12, and the inner wall abutment end 51 abuts against the inner wall of the annular retaining wall 2.

[0041] Please refer to Figure 18-19As shown, the annular petal structure 1 is arranged in the middle part of the annular retaining wall 2, the part of the annular retaining wall 2 placed above the annular petal structure 1 is called the upper annular retaining wall 22, and the part placed below the annular petal structure is called the lower annular retaining wall 23; the outer wall buttress 3 is still provided on the outer wall of the petal structure 14 away from the circulation space 12, and when the fluid flows positively from bottom to top, the petal structure 14 at the first circulation opening 11 is blown to swing toward the upper annular retaining wall 22 side, and when the swing is large, the outer wall abutment end 31 abuts against the inner wall of the upper annular retaining wall 22; when the fluid flows in the reverse direction, the inner wall abutment end 51 is blown to contact the inner wall of the lower annular retaining wall 23, and the inner wall buttress 5 and the outer wall buttress 3 have the same function, that is, when the deformation of the petal structure 14 is small, its vibration is suppressed, and when the deformation is large, the noise of contact with the annular retaining wall 2 is reduced.

[0042] In a preferred embodiment, at least one flow hole 15 is provided on the annular petal structure 1. One end of the flow hole 15 is connected to the flow space 12, and the other end is connected to the turbulent flow space 21. The flow hole 15 plays a role in stabilizing flow.

[0043] Please refer to Fig. 20 As shown, regardless of whether the annular petal structure 1 has a deformation opening 13 or not, and regardless of whether the annular retaining wall 2 is provided or not, a flow hole 15 can be provided, and the direction of the axial extension line of the flow hole 15 and the direction of the center line extension line of the first flow opening 11 have a third angle, and the opening of the third angle is away from the flow space 12 side. When the fluid flows positively from bottom to top, the fluid flows from the flow space 12, through the flow hole 15, to the outside or the turbulent space 21; the flow hole 15 is used to avoid a large fluid flow rate and has a flow stabilizing effect.

[0044] Furthermore, a circle of second protrusions 24 is provided at the bottom of the outer wall of the annular retaining wall 2. The second protrusions 24 are used to play a sealing role when connecting external equipment.

[0045] Furthermore, along the direction of the extended axis of the annular retaining wall 2 , a plurality of the annular petal structures 1 are distributed on the inner wall of the annular retaining wall 2 .

[0046] Please refer to Figure 25-27 As shown, the structure of each of the annular petal structures 1 is not limited and can be any of the above-mentioned structures. The outer wall of the annular retaining wall 2 is arc-shaped. The fluid bidirectional unequal velocity valve 8 having this structure can be placed in the trachea 7. Fig.28As shown, the number of the annular petal structures 1 is determined according to actual needs; all the annular petal structures 1 share one annular retaining wall 2, and the first flow opening 11 disposed above is connected to the flow space 12 below.

[0047] Example 2 On the basis of Example 1, the present application provides a bidirectional unequal-speed pipeline structure, in which the bidirectional unequal-speed fluid valve as described above is provided.

[0048] In some application scenarios, the pipeline structure is a gas pipe, please refer to Fig.28 As shown, the fluid bidirectional unequal speed valve is arranged in the trachea, and the outer wall of the annular retaining wall is arc-shaped and closely attached to the inner wall of the trachea. In some application scenarios, the pipeline structure is a quick-connect connector, and the fluid bidirectional unequal speed valve 8 can be placed in a quick-connect plug, and the quick-connect plug includes an integrated quick-connect plug connected to the housing of the control component 9 at one end. The fluid bidirectional unequal speed valve 8 is arranged in the housing of the control component 9, and its first flow opening 11 is connected to the air nozzle 61, and the air nozzle 61 is used to communicate with a massage air bag or an air supply device, such as Figure 21-22 As shown; the quick-connect plug also includes a multi-connection quick plug connected to the air pipe at both ends, the multi-connection quick plug includes a quick plug male head 62 and a quick plug female head 63 matched therewith, the fluid bidirectional unequal speed valve 8 is arranged in the quick plug female head 63, its flow space 12 is connected to the airway, and the first flow opening 11 is connected to the airway at the other end, as shown Figure 23-Figure 24 shown.

[0049] Example 3 Based on Example 1 and Example 2, the present application also proposes a pneumatic system, which includes an air source component, a control component 9, a pipeline structure and an air-using component, the air source component and the control component 9 are connected, and the control component 9 is connected to the air-using component through the pipeline component.

[0050] The gas source component is used to provide high-pressure gas, and the control component is used to control the on-off of the passage between the gas source component and the gas-using component. Optionally, the gas-using component can be an air bag for massage or support; as described in Example 2, the pipe structure can be a trachea or a quick-connect plug.

[0051] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A fluid bidirectional unequal speed valve, characterized in that: include: An annular petal-shaped structure (1), wherein the annular petal-shaped structure (1) has a first flow opening (11) at one end and a second flow opening (16) at the other end, and has a flow space (12) inside; the area of ​​the first flow opening (11) is smaller than the area of ​​the second flow opening (16), and the inner diameter of the flow space (12) gradually decreases from the second flow opening (16) to the first flow opening (11); When the fluid flows from the second circulation opening (16) to the first circulation opening (11), the fluid flows from the second circulation opening (16) to the circulation space (12) and passes through the circulation space (12), and flows out from the first circulation opening (11), the annular petal-shaped structure at the edge of the first circulation opening (11) deforms toward the side away from the circulation space (12), and the inner diameter of the first circulation opening (11) increases. At this time, the fluid flow rate is the first flow rate; When the fluid flows from the first circulation opening (11) to the second circulation opening (16), the fluid flows from the first circulation opening (11) to the circulation space (12) and passes through the circulation space (12), and flows out from the second circulation opening (16), the annular petal-shaped structure at the edge of the first circulation opening (11) deforms toward the side close to the circulation space (12), and the inner diameter of the first circulation opening (11) decreases. At this time, the fluid flow rate is the second flow rate; the first flow rate is greater than the second flow rate.

2. The fluid bidirectional unequal speed valve according to claim 1, characterized in that: The annular petal-shaped structure (1) is provided with an annular retaining wall (2) on the side wall close to the first circulation opening (11), and a disturbance space (21) is formed between the annular retaining wall (2) and the annular petal-shaped structure (1). When the fluid flows from the second circulation opening (16) to the first circulation opening (11), the annular petal-shaped structure (1) at the edge of the first circulation opening (11) is deformed toward the disturbance space (21); when the fluid flows from the first circulation opening (11) to the second circulation opening (16), the annular petal-shaped structure (1) at the edge of the first circulation opening (11) is deformed toward the circulation space (12), and the fluid enters the disturbance space (21), causing disturbance to the fluid flow.

3. The fluid bidirectional unequal speed valve according to any one of claims 1 and 2, characterized in that: At least one deformable opening (13) is provided at the top of the annular petal structure (1), and a first angle is formed between the extension direction of the deformable opening (13) and the extension direction of the center line of the first circulation opening (11), and the opening direction of the first angle is toward the circulation space (12). The deformable opening (13) divides the annular petal structure (1) into at least two petal structures (14); when the fluid flows from the second circulation opening (16) to the first circulation opening (11), the fluid blows the top of each petal structure (14) to swing toward the turbulent space (21); when the fluid flows from the first circulation opening (11) to the second circulation opening (16), the fluid blows the top of each petal structure (14) to swing toward the circulation space (12).

4. The fluid bidirectional unequal speed valve according to claim 3, characterized in that: When the annular petal structure (1) is provided with the annular retaining wall (2) outside, each of the petal structures (14) is provided with an outer wall buttress (3) close to the turbulent space (21), and the outer wall buttress (3) is used to suppress the vibration of the petal structure (14) under the action of airflow.

5. The fluid bidirectional unequal speed valve according to claim 3, characterized in that: Each of the petal structures (14) is provided with a support structure on a side close to the circulation space (12), and the support structure is used to support the petal structure (14).

6. The fluid bidirectional unequal speed valve according to claim 5, characterized in that: The support structure comprises a vertical support (41), wherein the vertical support (41) is a third protruding portion provided on the petal structure (14), and the extension direction of the third protruding portion is parallel to the extension direction of the center line of the first flow opening (11).

7. The fluid bidirectional unequal speed valve according to claim 5, characterized in that: The support structure comprises a transverse support (42), wherein the transverse support (42) comprises a fan-shaped portion (412) having one end disposed on the petal structure (14); in a natural state, the end of all the fan-shaped portions (412) away from the petal structure (14) forms a first through hole (422) having the same inner diameter as the first circulation opening (11); and the extended axis of the first through hole (422) is in the same straight line as the extended axis of the first circulation opening (11); when the airflow flows from the first circulation opening (11) to the second circulation opening (16), the transverse support (42) is used to support the petal structure (14) to prevent the petal structure (14) from buckling inwards and thus closing the first circulation opening (11).

8. The fluid bidirectional unequal speed valve according to claim 3, characterized in that: In a natural state, the curvature of the annular petal-shaped structure (1) composed of all the petal structures (14) approaches 0.

9. The fluid bidirectional unequal speed valve according to claim 8, characterized in that: An inner wall buttress (5) is provided on the side wall of the petal structure (14) close to the second flow opening (16), and the inner wall buttress (5) has an inner wall abutment end (51) at the end away from the petal structure (14); when the fluid flows from the first flow opening (11) to the second flow opening (16), the top end of the petal structure (14) is blown to swing toward the flow space (12), and the inner wall abutment end (51) abuts against the inner wall of the annular retaining wall (2).

10. A bidirectional unequal speed pipeline structure, characterized in that: The pipeline structure is provided with a fluid bidirectional unequal-speed valve as described in any one of claims 1 to 9.

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