Air chamber structure beneficial to integration

Abstract

The invention relates to the technical field of valves, in particular to an air chamber structure beneficial to integration, which comprises an air chamber main body, and the front end of the air chamber main body is provided with a main air passage and an inflation pipeline which are not directly communicated with each other; a first air chamber, a second air chamber, a first valve chamber, a second valve chamber, a first actuator working chamber and a second actuator working chamber are arranged in the air chamber body, a first through hole is formed between the first valve chamber and the first air chamber and used for direct ventilation, and a second through hole is formed between the second valve chamber and the second air chamber and used for direct ventilation. The first valve chamber and the second valve chamber are used for containing the first valve element and the second valve element respectively, the first valve element and the second valve element are used for blocking or opening the first through hole and the second through hole respectively, a first ventilation notch is formed in the connecting position of the main air channel and the first air chamber, and a second ventilation notch is formed in the connecting position of the main air channel and the second air chamber. The second air chamber is provided with an air outlet. The air chamber structure is small in size, compact in structure and beneficial to integrated use.

Description

Technical Field

[0001] The present invention relates to the field of valve technology, and in particular to an air chamber structure that is conducive to integration. Background Art

[0002] The air chamber of a valve usually refers to the space inside the valve used to store, control or regulate gas pressure. The specific structure and function of the air chamber will vary depending on the valve type and design.

[0003] With the advancement of science and technology and the development of industry, all walks of life have higher and higher requirements for gas processing, detection, supply and other equipment. Traditional gas chamber designs often have problems such as large size, heavy weight, and complex structure, which are difficult to meet the needs of efficient, compact and intelligent valves. Traditional single gas chambers cannot be combined to form an integrated gas chamber to meet the needs of modular use.

[0004] In addition, the airway design in the traditional single air chamber is not suitable for the memory alloy valve, and there is a problem of poor air tightness. The air at the external ambient temperature easily flows through the memory alloy wire, affecting the working temperature of the memory alloy wire itself, and affecting the normal use of the memory alloy valve. Summary of the invention

[0005] In order to solve the above problems, the present invention provides an air chamber structure that is conducive to integration. Single air chambers can be used in combination as needed, and the air chamber has a small volume, a compact internal cavity structure, and high air tightness.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide an air chamber structure that is conducive to integration, including an air chamber body, a main air channel and an inflation pipe that are not directly connected to each other are provided at the front end of the air chamber body, a first air chamber, a second air chamber, a first valve chamber, a second valve chamber, a first actuator working chamber and a second actuator working chamber are provided inside the air chamber body, the first air chamber and the second air chamber are arranged side by side on the left and right, the first valve chamber and the second valve chamber are arranged side by side on the left and right and are respectively located directly below the first air chamber and the second air chamber, a first through hole is provided between the first valve chamber and the first air chamber for direct ventilation, and a second through hole is provided between the second valve chamber and the second air chamber for direct Ventilation, the first valve chamber and the second valve chamber are used to accommodate the first valve core and the second valve core respectively, the first valve core and the second valve core are used to block or open the first through hole and the second through hole respectively, the first actuator working chamber and the second actuator working chamber are used to accommodate the first actuator and the second actuator respectively, the first actuator and the second actuator are used to drive the blocking or opening action of the first valve core and the second valve core respectively, the inflation pipe is directly connected to the first valve chamber and the second valve chamber, a first ventilation gap is provided at the connection between the main air channel and the first air chamber, a second ventilation gap is provided at the connection between the main air channel and the second air chamber, and an air release port is provided on the second air chamber.

[0007] Furthermore, the first actuator working chamber is located directly behind the first valve chamber, and the second actuator working chamber is located directly behind the second valve chamber. The partition wall between the first actuator working chamber and the first valve chamber is only provided with a first through-hole for the actuating end of the first actuator to extend into the first valve chamber, and the inner wall of the first through-hole is in contact with the periphery of the actuating end of the first actuator; the partition wall between the second actuator working chamber and the second valve chamber is only provided with a second through-hole for the actuating end of the second actuator to extend into the second valve chamber, and the inner wall of the second through-hole is in contact with the periphery of the actuating end of the second actuator.

[0008] Furthermore, the inflation pipe and the main air channel are arranged vertically, and the axial direction of the inflation pipe is consistent with the length direction of the air chamber body.

[0009] Furthermore, the main air duct includes a first main air duct, a second main air duct and a third main air duct which are coaxially arranged, and the outer diameters of the first main air duct, the second main air duct and the third main air duct increase successively. A sinking step is provided inside the end of the third main air duct away from the first main air duct, and the diameter of the sinking step is the same as the outer diameter of the second main air duct, and the depth of the sinking step is greater than the length of the first main air duct.

[0010] Furthermore, a second chamfer is provided on the outer circumferential surface of one end of the second main air duct close to the first main air duct, a first chamfer is provided on the outer circumferential surface of one end of the first main air duct away from the second main air duct, and a third chamfer matching the inclination angle of the first chamfer is provided on the periphery of the air inlet inside the third main air duct.

[0011] Furthermore, the front end of the inflation pipe is provided with a first reducer and a second reducer, the outer diameters of which increase sequentially from left to right, and the large diameter end of the first reducer is connected to the small diameter end of the second reducer.

[0012] Furthermore, a protruding first annular boss is disposed on the periphery of one end of the first through hole facing the first valve chamber, and a protruding second annular boss is disposed on the periphery of one end of the second through hole facing the second valve chamber.

[0013] Furthermore, a first position-limiting member for limiting the moving direction of the first actuator is disposed in the working chamber of the first actuator, and a second position-limiting member for limiting the moving direction of the second actuator is disposed in the working chamber of the second actuator.

[0014] Furthermore, a lateral vent is provided on the right side of the front end of the first main air duct, and the length of the lateral vent is not greater than the length of the first ventilation gap.

[0015] Furthermore, the main air channel intersects with an outer wall of the inflation pipe.

[0016] Furthermore, the air chamber body, the main air channel and the inflation pipe are made of any one of polybutylene terephthalate, ABS plastic and nylon with glass fiber.

[0017] The technical solution of the present invention has the following advantages:

[0018] 1. The present invention designs the main air duct in sections. By plugging the first main air duct on the air chamber structure of an embodiment of the present invention into the sunken step in the third main air duct on another identical air chamber structure of an embodiment of the present invention, the combination of the two air chamber structures can be completed. By analogy, different numbers of air chamber structures of the embodiments of the present invention can be plugged in and combined according to the application needs in different scenarios for modular use.

[0019] 2. The air chamber structure of the embodiment of the present invention designs two groups of air chambers, valve chambers and actuator working chambers in the same air chamber body, which can meet the needs of accommodating double valve cores in a single valve, and the valve chamber and the actuator working chamber are separately arranged. The actuator working chamber has good air tightness. When gas exchange is carried out between the valve chamber and the air chamber, the flow of gas at the external ambient temperature entering the actuator working chamber is reduced. When the actuator is driven by a memory alloy wire, hot air or cold air in a hot or cold environment will not have an adverse effect on the temperature of the memory alloy wire itself. The deformation response speed of the memory alloy wire is faster, the deformation amount is more accurate, the control of the valve core is more precise, and the control of the gas flow is also more precise. The air chamber structure of the embodiment of the present invention can be used on some ventilation valves that have high requirements on flow accuracy.

[0020] It should be appreciated that all combinations of the foregoing concepts, as well as additional concepts described in greater detail below, may be considered to be part of the inventive subject matter of the present disclosure, provided such concepts are not mutually inconsistent.

[0021] The foregoing and other aspects, embodiments and features of the present invention can be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as the features and / or beneficial effects of the exemplary embodiments, will be apparent from the following description or learned from the practice of the specific embodiments according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are not drawn to scale according to actual reference objects. In the accompanying drawings, each identical or nearly identical component shown in various figures may be represented by the same reference numeral. For the sake of clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the present invention will be described by way of example and with reference to the accompanying drawings, in which:

[0023] Figure 1 This is a top view of the air chamber structure that is advantageous for integration of the present invention.

[0024] Figure 2 This is a bottom view of the integrated air chamber structure of the present invention.

[0025] Figure 3 This is a cross-sectional view of the air chamber structure that is advantageous for integration of the present invention.

[0026] Figure 4 It is a schematic diagram of the integrated air chamber structure that is beneficial to the integration of the present invention.

[0027] Figure 5 This is a schematic diagram of modular application of the integrated air chamber structure of the present invention as a ventilation valve for a car seat.

[0028] Description of Figure Numbers:

[0029] 1-air chamber body; 2-second air chamber; 3-first air chamber; 4-inflating pipe; 5-first main air pipe; 6-second main air pipe; 7-third main air pipe; 8-first reducer; 9-second reducer; 10-first valve chamber; 11-second valve chamber; 12-second through hole; 13-first through hole; 14-first actuator working chamber; 15-second actuator working chamber; 16-first annular boss; 17-second annular boss; 18-first through hole; 19-second through hole; 20-partition wall; 21-sunken step; 22-vent; 23-main air channel; 24-inflating port; 25-lateral vent; 100-second ventilation gap; 200-first ventilation gap. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the common meaning understood by people with general skills in the field to which the present invention belongs.

[0031] The words "first", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular forms of "a", "an" or "the" and other similar words do not indicate a quantitative limitation, but indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprise" cover the features, wholes, steps, operations, elements and / or components listed after "include" or "comprise", and do not exclude the existence or addition of one or more other features, wholes, steps, operations, elements, components and / or their collections. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0032] Traditional air chamber designs often have problems such as large size, heavy weight, and complex structure, which makes it difficult to meet the needs of efficient, compact, and intelligent valves. Traditional single air chambers cannot be combined to form an integrated air chamber to meet the needs of modular use.

[0033] In addition, the airway design in the traditional single air chamber is not suitable for the memory alloy valve, and there is a problem of poor air tightness. The air at the external ambient temperature easily flows through the memory alloy wire, affecting the working temperature of the memory alloy wire itself, and affecting the normal use of the memory alloy valve.

[0034] In view of the above problems, an embodiment of the present invention provides an air chamber structure that is conducive to integration, has a small size, and a compact structure, and can meet the modular use requirements of different valves.

[0035] See also Figure 1 As shown, an air chamber structure conducive to integration is provided, including an air chamber body 1, a main air channel 23 and an inflation pipe 4 which are not directly connected to each other are provided at the front end of the air chamber body 1, a first air chamber 3, a second air chamber 2, a first valve chamber 10, a second valve chamber 11, a first actuator working chamber 14 and a second actuator working chamber 15 are provided inside the air chamber body 1, the first air chamber 3 and the second air chamber 2 are arranged side by side on the left and right, the first valve chamber 10 and the second valve chamber 11 are arranged side by side on the left and right and are respectively located directly below the first air chamber 3 and the second air chamber 2, a first through hole 13 is provided between the first valve chamber 10 and the first air chamber 3 for direct ventilation, a second through hole 12 is provided between the second valve chamber 11 and the second air chamber 2 for direct ventilation, and the first valve The first valve chamber 10 and the second valve chamber 11 are used to accommodate the first valve core and the second valve core respectively, the first valve core and the second valve core are used to block or open the first through hole 13 and the second through hole 12 respectively, the first actuator working chamber 14 and the second actuator working chamber 15 are used to accommodate the first actuator and the second actuator respectively, the first actuator and the second actuator are used to drive the blocking or opening action of the first valve core and the second valve core respectively, the inflation pipe 4 is directly connected to the first valve chamber 10 and the second valve chamber 11, the connection between the main air channel 23 and the first air chamber 3 is provided with a first ventilation gap 200, the connection between the main air channel 23 and the second air chamber 2 is provided with a second ventilation gap 100, and the second air chamber 2 is provided with a deflation port 22. The inflation port 24 of the inflation pipe 4 is connected to the external airbag.

[0036] The air chamber structure of the embodiment of the present invention designs two groups of air chambers, valve chambers and actuator working chambers in the same air chamber body 1, which can meet the needs of accommodating double valve cores in a single valve, and the valve chamber and the actuator working chamber are separately arranged, and the actuator working chamber has good air tightness. When gas exchange is carried out between the valve chamber and the air chamber, the flow of gas at the external ambient temperature entering the actuator working chamber is reduced. When the actuator is driven by a memory alloy wire, the hot air or cold air in a hot or cold environment will not have an adverse effect on the temperature of the memory alloy wire itself. The deformation response speed of the memory alloy wire is faster, the deformation amount is more accurate, the control of the valve core is more precise, and the control of the gas flow is also more precise. The air chamber structure of the embodiment of the present invention can be used on some ventilation valves that have high requirements on flow accuracy.

[0037] The air chamber structure of the embodiment of the present invention can accommodate a double valve core. By controlling the movement of the first valve core and the second valve core respectively, the first through hole 13 and the second through hole 12 can be blocked or opened respectively, thereby achieving the function of maintaining pressure on the external airbag that cannot be achieved by a single valve core air chamber structure.

[0038] The external airbag is connected to the inflation pipe 4. When the external airbag is pressurized, the main airway 23 is ventilated and the air release port 22 is closed. The execution actions of the first actuator driving the first valve core and the second actuator driving the second valve core are consistent, and under this execution action, the first valve core blocks the first through hole 13, and the second valve core blocks the second through hole 12. The gas from the main airway 23 enters the first air chamber 3 and the second air chamber 2, but cannot enter the first valve chamber 10 and the second valve chamber 11. The inflation pipe 4 is directly connected to the first valve chamber 10 and the second valve chamber 11. Although part of the gas inside the airbag will flow back to the first valve chamber 10 and the second valve chamber 11, the airbag will not be deflated, so the airbag can achieve a pressure-maintaining state.

[0039] When the external airbag is inflated, the main air channel 23 is ventilated and the air vent 22 is closed. The execution actions of the first actuator driving the first valve core and the second actuator driving the second valve core are inconsistent. Under the execution action of the first actuator, the first valve core opens the first through hole 13, and the second valve core blocks the second through hole 12. The airflow from the main air channel 23 enters the first valve chamber 10 from the first air chamber 3 and then enters the external airbag, while the air vent 22 is only opened on the second valve chamber 11. The second through hole 12 for gas exchange between the second valve chamber 11 and the second air chamber 2 is blocked, so that the airbag is inflated.

[0040] When the external airbag is deflated, the main air channel 23 is ventilated and the deflation port 22 is opened. The execution actions of the first actuator driving the first valve core and the second actuator driving the second valve core are inconsistent. Under the execution action of the first actuator, the first valve core blocks the first through hole 13, and the second valve core opens the second through hole 12. The airflow from the main air channel 23 cannot enter the first valve chamber 10 from the first air chamber 3, and the airbag cannot be inflated through the first valve chamber 10. The deflation port 22 is only opened on the second valve chamber 11, and the second through hole 12 for gas exchange between the second valve chamber 11 and the second air chamber 2 is opened, so that the airbag is deflated.

[0041] The air chamber structure in the embodiment of the present invention can satisfy the requirement that a valve has three states of inflating, deflating and maintaining pressure on the external air bag, and has a compact structure and a small volume of the air chamber structure, and is more suitable for miniaturized ventilation valves.

[0042] In some embodiments of the present invention, the first actuator working chamber 14 is located directly behind the first valve chamber 10, and the second actuator working chamber 15 is located directly behind the second valve chamber 11. The partition wall 20 between the first actuator working chamber 14 and the first valve chamber 10 is only provided with a first through-hole 18 for allowing the actuating end of the first actuator to extend into the first valve chamber 10, and the inner wall of the first through-hole 18 is in contact with the periphery of the actuating end of the first actuator; the partition wall 20 between the second actuator working chamber 15 and the second valve chamber 11 is only provided with a second through-hole 19 for allowing the actuating end of the second actuator to extend into the second valve chamber 11, and the inner wall of the second through-hole 19 is in contact with the periphery of the actuating end of the second actuator.

[0043] In a low-temperature environment, since the memory alloy wire is in contact with flowing air, part of the heat accumulated on the wire after power is turned on will be taken away by the low-temperature gas, so the response speed will be reduced. The air chamber structure design of the ventilation valve with memory alloy as the valve core actuator on the market is unreasonable, and there is a lack of airtight protection for the memory alloy wire. The air chamber structure of the embodiment of the present invention arranges the valve core and the actuator in separate chambers, which is more conducive to the application of the memory alloy wire in the ventilation valve as the actuator, thereby improving the response speed of the memory alloy wire.

[0044] In some embodiments of the present invention, the inflation pipe 4 and the main air channel 23 are vertically arranged, and the axial direction of the inflation pipe 4 is consistent with the length direction of the air chamber body 1.

[0045] In some embodiments of the present invention, the main air duct 23 includes a coaxially arranged first main air duct 5, a second main air duct 6 and a third main air duct 7, the outer diameters of the first main air duct 5, the second main air duct 6 and the third main air duct 7 increase successively, and a sinking step 21 is provided inside the end of the third main air duct 7 away from the first main air duct 5, the diameter of the sinking step 21 is the same as the outer diameter of the second main air duct 6, and the depth of the sinking step 21 is greater than the length of the first main air duct 5.

[0046] See also Figure 4 As shown, the main air duct 23 is designed in sections. By plugging the first main air duct 5 on the air chamber structure of an embodiment of the present invention into the sunken step 21 in the third main air duct 7 on another identical air chamber structure of the present invention, the combination of the two air chamber structures can be completed. By analogy, different numbers of air chamber structures of the embodiments of the present invention can be plugged in and combined for modular use according to application needs in different scenarios.

[0047] When the two air chamber structures are combined, each air chamber body 1 is arranged in sequence in the width direction without taking up any extra space. The overall volume of the ventilation valve is also smaller when used modularly, and the space is more compact.

[0048] In some embodiments of the present invention, a lateral vent 25 is provided on the right side of the front end of the first main air duct 5 , and the length of the lateral vent 25 is not greater than the length of the first ventilation gap 200 .

[0049] When the first main air duct 5 of one air chamber structure is plugged into the sunken step 21 in the third main air duct 7 of another air chamber structure, the lateral air vent 25 on the first main air duct 5 is connected with the first ventilation notch 200 on the other air chamber structure, which facilitates smooth ventilation between the two.

[0050] In some embodiments of the present invention, a second chamfer is provided on the outer circumferential surface of one end of the second main air duct 6 close to the first main air duct 5, a first chamfer is provided on the outer circumferential surface of one end of the first main air duct 5 away from the second main air duct 6, and a third chamfer matching the inclination angle of the first chamfer is provided on the periphery of the air inlet inside the third main air duct 7. When the first main air duct 5 of one air chamber structure is plugged into the sunken step 21 in the third main air duct 7 of another air chamber structure, the first chamfer and the third chamfer are in close contact, thereby enhancing the air tightness in the radial direction.

[0051] In some embodiments of the present invention, the front end of the inflation pipe 4 is provided with a first reducer 8 and a second reducer 9 whose outer diameters increase successively from left to right, and the large diameter end of the first reducer 8 is connected to the small diameter end of the second reducer 9.

[0052] By providing the first reducer 8 and the second reducer 9, a ring-shaped clamping position is formed at the front end of the inflation pipe 4, which is more conducive to inserting the external airbag and preventing the external airbag from slipping off.

[0053] In some embodiments of the present invention, a protruding first annular protrusion 16 is provided on the periphery of one end of the first through hole 13 facing the first valve chamber 10, and a protruding second annular protrusion 17 is provided on the periphery of one end of the second through hole 12 facing the second valve chamber 11. A rubber pad may be provided on the contact surface between the first valve core and the first through hole 13. When the first valve core blocks the first through hole 13, the first annular protrusion 16 improves the air tightness of the blockage by closely contacting the rubber pad. Similarly, a rubber pad is provided on the contact surface between the second valve core and the second through hole 12. When the second valve core blocks the second through hole 12, the second annular protrusion 17 also improves the air tightness of the blockage by closely contacting the rubber pad.

[0054] In some embodiments of the present invention, a first limit member for limiting the moving direction of the first actuator is provided in the first actuator working chamber 14, and a second limit member for limiting the moving direction of the second actuator is provided in the second actuator working chamber 15, thereby ensuring that the movement directions of the first actuator and the second actuator will not be offset, thereby improving the stroke control accuracy of the first valve core and the second valve core.

[0055] In some embodiments of the present invention, the main air channel 23 intersects with the outer wall of the inflation pipe 4, further reducing the overall occupied space and making the structure more compact.

[0056] In some embodiments of the present invention, the air chamber body 1, the main air channel 23 and the inflation pipe 4 are made of any one of polybutylene terephthalate, ABS plastic, and nylon with glass fiber, and the materials have a certain heat resistance to meet the use of the valve in a high temperature environment.

[0057] See also Figure 5As shown in the figure, as an integrated application example of the air chamber structure of the embodiment of the present invention, the application example is a car seat vent valve, S1 is a lumbar support module of the car seat vent valve, S2 is a massage module of the car seat vent valve, S3 is the main air inlet area, the lumbar support module is provided with a 3-way valve unit on one side, and the massage module is provided with a 7-way valve unit on the left and right sides, and the main air inlet is connected to the valve units at the bottom of the left and right sides. As can be seen from the figure, the overall volume of the car seat vent valve is small, the gap between the valve units is small, and the space is compact. The number of valve units on the left and right sides required by the massage module can be selected from 6 to 14 as needed. When 6-way valve units are set on the left and right sides, the user's back massage needs are met; when 10-way valve units are set on the left and right sides, the massage needs of the waist and head and neck can be further met; when 14-way valve units are set on the left and right sides, the massage needs of the legs can be further met. In short, the air chamber structure of the embodiment of the present invention is more conducive to the use of an integrated vent valve, and the connection method between the air chamber structures is simple and plug-and-play. The integrated gas chamber integrates multiple gas chambers on the same base material, achieving a highly compact structure, greatly reducing the volume and weight of the integrated vent valve equipment, making it easy to carry and install. The integrated gas chamber can further optimize the gas flow path by controlling the gas flow direction of a single gas chamber, improving the efficiency and accuracy of gas processing, detection and supply, helping to reduce energy consumption, improve production efficiency and reduce operating costs. When the vent valve is found to be damaged, only the damaged single gas chamber needs to be found and replaced for continued use.

[0058] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. An air chamber structure that is conducive to integration, characterized in that: It includes an air chamber body, a main airway and an inflation pipe which are not directly connected to each other are provided at the front end of the air chamber body, a first air chamber, a second air chamber, a first valve chamber, a second valve chamber, a first actuator working chamber and a second actuator working chamber are provided inside the air chamber body, the first air chamber and the second air chamber are arranged side by side on the left and right, the first valve chamber and the second valve chamber are arranged side by side on the left and right and are respectively located directly below the first air chamber and the second air chamber, a first through hole is provided between the first valve chamber and the first air chamber for direct ventilation, a second through hole is provided between the second valve chamber and the second air chamber for direct ventilation, the first valve chamber and the second valve chamber are respectively Used to accommodate the first valve core and the second valve core, the first valve core and the second valve core are respectively used to block or open the first through hole and the second through hole, the first actuator working chamber and the second actuator working chamber are respectively used to accommodate the first actuator and the second actuator, the first actuator and the second actuator are respectively used to drive the blocking or opening action of the first valve core and the second valve core, the inflation pipe is directly connected to the first valve chamber and the second valve chamber, a first ventilation gap is provided at the connection between the main air channel and the first air chamber, a second ventilation gap is provided at the connection between the main air channel and the second air chamber, and an air release port is provided on the second air chamber.

2. The integrated air chamber structure according to claim 1, characterized in that: The first actuator working chamber is located directly behind the first valve chamber, and the second actuator working chamber is located directly behind the second valve chamber. The partition wall between the first actuator working chamber and the first valve chamber is only provided with a first through-hole for the actuating end of the first actuator to extend into the first valve chamber, and the inner wall of the first through-hole is in contact with the periphery of the actuating end of the first actuator; the partition wall between the second actuator working chamber and the second valve chamber is only provided with a second through-hole for the actuating end of the second actuator to extend into the second valve chamber, and the inner wall of the second through-hole is in contact with the periphery of the actuating end of the second actuator.

3. The integrated air chamber structure according to claim 1, characterized in that: The inflation pipe and the main air channel are arranged vertically, and the axial direction of the inflation pipe is consistent with the length direction of the air chamber body.

4. The integrated air chamber structure according to claim 1, characterized in that: The main air duct includes a first main air duct, a second main air duct and a third main air duct which are coaxially arranged, the outer diameters of the first main air duct, the second main air duct and the third main air duct increase successively, a sinking step is provided inside an end of the third main air duct away from the first main air duct, the diameter of the sinking step is the same as the outer diameter of the second main air duct, and the depth of the sinking step is greater than the length of the first main air duct.

5. The integrated air chamber structure according to claim 4, characterized in that: A second chamfer is provided on the outer circumferential surface of one end of the second main air duct close to the first main air duct, a first chamfer is provided on the outer circumferential surface of one end of the first main air duct away from the second main air duct, and a third chamfer matching the inclination angle of the first chamfer is provided on the periphery of the air inlet inside the third main air duct.

6. The integrated air chamber structure according to claim 1, characterized in that: The front end of the inflation pipe is provided with a first reducer and a second reducer, the outer diameters of which increase sequentially from left to right, and the large-diameter end of the first reducer is connected to the small-diameter end of the second reducer.

7. The integrated air chamber structure according to claim 1, characterized in that: A protruding first annular boss is disposed on the periphery of one end of the first through hole facing the first valve chamber, and a protruding second annular boss is disposed on the periphery of one end of the second through hole facing the second valve chamber.

8. The integrated air chamber structure according to claim 1, characterized in that: A first position-limiting member for limiting the moving direction of the first actuator is disposed in the first actuator working chamber, and a second position-limiting member for limiting the moving direction of the second actuator is disposed in the second actuator working chamber.

9. The integrated air chamber structure according to claim 4, characterized in that: A lateral vent is provided on the right side of the front end of the first main air duct, and the length of the lateral vent is not greater than the length of the first ventilation gap.

10. The integrated air chamber structure according to claim 1, characterized in that: The air chamber body, the main air channel and the inflation pipe are made of any one of polybutylene terephthalate, ABS plastic and nylon with glass fiber.

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