A new intake valve

Abstract

The application provides a novel intake valve, comprising a valve body, a valve seat, a cylinder cover, a piston rod, a disc plate assembly and a large diaphragm; the valve seat is connected with one end of the valve body, the cylinder cover is connected with the other end of the valve body, forming a shell of the intake valve; the piston rod is arranged in the valve body and connected with the disc plate assembly, for driving the disc plate assembly to control the opening or closing of the intake valve; the large diaphragm is clamped between the valve body and the cylinder cover, and one end surface is abutted with one end of the piston rod, for pushing the piston rod to move. The application increases the large diaphragm in the intake valve, clamps the large diaphragm between the valve body and the cylinder cover and abuts the large diaphragm with the piston rod, so that the intake valve has high sensitivity; when the operation of the intake valve is controlled, the piston rod can also be pushed to move under low driving force through the large diaphragm, thereby effectively controlling the disc plate assembly; while ensuring the stable and reliable function of the intake valve, the driving energy consumption is reduced, and the overall performance and efficiency are improved.

Description

Technical Field

[0001] This application relates to the field of intake valves, and more specifically, to a novel intake valve. Background Technology

[0002] Intake valves are widely used in industrial automation processes. They are mainly used in screw air compressor systems to open and close the intake valve, thereby achieving purposes such as switching the flow direction of the medium in the pipeline or adjusting the intake capacity according to changes in system pressure.

[0003] With the increasing application of intake valve technology across various industries, the performance of traditional intake valves is constantly improving, making the development of new intake valve products that meet market demands imperative. Currently used intake valves often suffer from slow loading and response times during operation, and are unable to operate at lower drive pressures. These issues mean they no longer meet market demands. Utility Model Content

[0004] In view of one of the defects in the prior art, the purpose of this application is to provide a novel intake valve.

[0005] A first aspect of this application provides a novel intake valve, comprising: a valve body, a valve seat, a cylinder head, a piston rod, a disc assembly, and a large diaphragm;

[0006] The valve seat is connected to one end of the valve body, and the cylinder head is connected to the other end of the valve body to form the housing of the intake valve;

[0007] The piston rod is disposed in the valve body and connected to the disc assembly, and is used to drive the disc assembly to control the intake valve to open or close.

[0008] The large diaphragm is sandwiched between the valve body and the cylinder head, with one end face abutting against one end of the piston rod to push the piston rod to move.

[0009] Optionally, the large diaphragm is provided with a clamping part, which is fixed at the connection between the valve body and the cylinder head;

[0010] The clamping part is provided with a limiting protrusion, and the end of the valve body connected to the cylinder head is provided with a limiting groove. The limiting protrusion is disposed in the limiting groove to restrict the movement of the large diaphragm between the valve body and the cylinder head.

[0011] Optionally, the large diaphragm is provided with a fabric clamp, which is embedded in the large diaphragm;

[0012] The interlayer fabric is one or more layers of fabric.

[0013] Optionally, the valve body is provided with a first chamber and a second chamber;

[0014] The first chamber is located on one side of the second chamber, one end of the second chamber is connected to the outside atmosphere, and the other end is connected to the air outlet;

[0015] The piston rod and the large diaphragm are disposed in the first chamber to seal the first chamber.

[0016] The disc assembly is disposed within the second chamber and is used to open or close the second chamber.

[0017] Optionally, the intake valve further includes: a slider and a disc valve stem;

[0018] The disc valve stem is connected to the disc assembly and is used to fix the disc assembly;

[0019] One end of the slider is connected to the disc assembly, and the other end is connected to the piston rod. The slider is used to push the disc assembly to rotate and open the intake valve.

[0020] Optionally, the piston rod has a groove on its peripheral wall, and the other end of the slider is located in the groove.

[0021] Optionally, the intake valve further includes a valve block disposed on the cylinder head, and the valve block is provided with an intake port, which communicates with the first chamber and is used to introduce gas generated by an external air compressor into the first chamber.

[0022] The valve block is provided with a small diaphragm and a thin gasket, which are disposed at the connection between the valve block and the cylinder head. One side of the thin gasket is attached to the cylinder head to seal the valve block and the cylinder head. The other side of the small diaphragm and the thin gasket are attached to prevent negative pressure from entering the first chamber when there is negative pressure at the valve block inlet.

[0023] A sealed cavity is formed between the large diaphragm and the cylinder head in the first chamber. After the air compressor receives the control signal, air is introduced into the sealed cavity through the air inlet to increase the air pressure in the sealed cavity and drive the large diaphragm to push the piston rod to move.

[0024] Optionally, the intake valve further includes:

[0025] A bearing is sleeved on the outer peripheral wall of the piston rod, and the piston rod can slide within the bearing;

[0026] A spring, sleeved on the piston rod, is used to reset the piston rod;

[0027] The inner wall of the first chamber is provided with a first limiting part, one end of the piston rod is provided with a second limiting part, and the two ends of the spring respectively abut against the first limiting part and the second limiting part to limit the position of the spring;

[0028] The bearing in question is a copper-based oilless bearing.

[0029] Optionally, the intake valve further includes: an adjusting retaining sleeve and an adjusting rod;

[0030] The adjusting rod is located at the air outlet, and the adjusting fixing sleeve is fitted on the outer peripheral wall of the adjusting rod and located inside the air outlet, for adjusting the size of the air outlet.

[0031] Optionally, the valve seat is provided with a vent port, which is disposed opposite to the other end of the piston rod, and the other end of the piston rod can close the vent port;

[0032] The other end of the piston rod is provided with a relief valve, which closes the vent when the piston rod drives the disc assembly to move.

[0033] This application provides a novel intake valve that employs a technique of adding a large diaphragm to the intake valve. The large diaphragm is sandwiched between the valve body and the cylinder head and abuts against the piston rod, giving the intake valve high sensitivity. When controlling the intake valve, the large diaphragm can push the piston rod to move even with low driving force, thereby effectively controlling the disc assembly. While ensuring the stable and reliable function of the intake valve, it reduces driving energy consumption and improves overall performance and efficiency.

[0034] Other technical effects resulting from the additional features will be further illustrated in the corresponding embodiments. Attached Figure Description

[0035] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0036] Figure 1 This is a schematic diagram illustrating the structure of a novel intake valve according to an exemplary embodiment;

[0037] Figure 2 This is a cross-sectional view of a novel intake valve according to an exemplary embodiment;

[0038] Figure 3 As illustrated in an exemplary embodiment Figure 2 Sectional view at point AA;

[0039] In the diagram: 1. Spring; 2. Large diaphragm; 21. Clamping part; 211. Limiting protrusion; 3. Valve body; 31. Limiting groove; 32. First chamber; 33. Second chamber; 4. Clearance valve; 5. Piston rod; 51. Groove; 6. Cylinder head; 7. Disc valve stem; 8. Disc assembly; 9. Slider; 10. Bearing; 11. Valve block; 111. Inlet; 12. Small diaphragm; 13. Thin gasket; 14. Adjusting fixing sleeve; 15. Adjusting rod; 16. Valve seat; 161. Vent port. Detailed Implementation

[0040] The present application will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present application, but do not limit the present application in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all fall within the protection scope of the present application. Parts not described in detail in the following embodiments can be implemented using existing technology.

[0041] In the description of the embodiments of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0043] In the description of the embodiments in this application, "multiple" means two or more, unless otherwise explicitly specified. In this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] The terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such processes, methods, products, or devices.

[0045] Commonly used intake valves in the prior art often encounter problems such as slow loading and slow response during operation, and inability to be loaded with lower driving pressures. Based on these problems, this application provides a novel intake valve to solve these issues.

[0046] Reference Figure 1 As shown in one embodiment of this application, a novel intake valve includes: a valve body 3, a valve seat 16, a cylinder head 6, a piston rod 5, a disc assembly 8, and a large diaphragm 2.

[0047] The valve seat 16 is connected to one end of the valve body 3, and the cylinder head 6 is connected to the other end of the valve body 3 to form the housing of the intake valve; the piston rod 5 is disposed inside the valve body 3 and connected to the disc assembly 8, and is used to drive the disc assembly 8 to control the intake valve to open or close; the large diaphragm 2 is sandwiched between the valve body 3 and the cylinder head 6, and one end face abuts against one end of the piston rod 5, and is used to push the piston rod 5 to move.

[0048] Specifically, a large diaphragm 2 is added at the connection between the valve body 3 and the cylinder head 6 to abut against the piston rod 5. During operation, external gas is introduced into the valve body 3, and the large diaphragm 2 drives the piston rod 5 to move within the valve body 3. The piston rod 5 drives the disc assembly 8 to rotate, controlling the opening or closing of the intake valve.

[0049] In the above embodiments of this application, a stable housing is formed by the valve body 3, valve seat 16, cylinder head 6, etc. The piston rod 5 is connected to the disc assembly 8 to achieve precise control of the opening and closing of the intake valve. The large diaphragm 2 is sandwiched between the valve body 3 and the cylinder head 6 and abuts against the piston rod 5. This design makes the intake valve highly sensitive, requiring only low driving force to drive the piston rod 5 to move, thereby effectively controlling the disc assembly 8. While ensuring the stable and reliable function of the intake valve, it reduces driving energy consumption and improves overall performance and efficiency.

[0050] To avoid the problem of the large diaphragm 2 moving between the valve body 3 and the cylinder head 6, in some specific embodiments of this application, the large diaphragm 2 can be provided with a clamping part 21, which is fixed at the connection between the valve body 3 and the cylinder head 6; the clamping part 21 is provided with a limiting protrusion 211, and the end of the valve body 3 connected to the cylinder head 6 is provided with a limiting groove 31, and the limiting protrusion 211 is disposed in the limiting groove 31 to restrict the movement of the large diaphragm 2 between the valve body 3 and the cylinder head 6.

[0051] Specifically, during installation, a clamping part 21 is provided on the large diaphragm 2, and a limiting protrusion 211 is provided on the clamping part 21. A limiting groove 31 is provided at the connection between the valve body 3 and the cylinder head 6. The limiting protrusion 211 is installed corresponding to the limiting groove 31. The cylinder head 6 is then fixedly connected to the cylinder body, thus restricting the large diaphragm 2 between the cylinder head 6 and the valve body 3, thereby fixing the large diaphragm 2 and improving the stability of the large diaphragm 2 during use.

[0052] The intake valve uses a large diaphragm type 2 structure, which has good sealing performance and can achieve zero leakage. The large diaphragm 2 fits tightly with the piston rod 5, requiring no additional lubrication.

[0053] In order to improve the tensile strength of the large diaphragm 2, in some specific embodiments of this application, the large diaphragm 2 is provided with a fabric clamp, which is embedded in the large diaphragm 2 to improve the tensile strength of the large diaphragm 2.

[0054] Among them, the lining is one or more layers of fabric.

[0055] Specifically, the large diaphragm 2 is a rubber diaphragm with one or more layers of fabric embedded in it to improve its strength, pressure resistance and tear resistance, so that the rubber diaphragm can better adapt to various harsh environments in actual use and extend its service life. The production process of the fabric-reinforced rubber diaphragm includes embedding the fabric into the rubber and performing special processing to ensure that the fabric and rubber are tightly bonded.

[0056] In the above embodiments of this application, a fabric interlayer is added in the middle of the large diaphragm 2, which greatly improves the tensile strength, limits excessive deformation, and extends the service life (reducing creep and wear resistance).

[0057] In order to facilitate the cooperation between the large diaphragm 2 and the piston rod 5, in some specific embodiments of this application, the valve body 3 is provided with a first chamber 32 and a second chamber 33.

[0058] The first chamber 32 is located on one side of the second chamber 33. One end of the second chamber 33 is connected to the outside atmosphere, and the other end is connected to the air outlet. The piston rod 5 and the large diaphragm 2 are disposed in the first chamber 32 to seal the first chamber 32. The disc assembly 8 is disposed in the second chamber 33 to open or close the second chamber 33.

[0059] Specifically, by setting a first chamber 32 and a second chamber 33 in the valve body 3, the piston rod 5 and the large diaphragm 2 are set in the first chamber 32, and the disc assembly 8 is set in the second chamber 33, so that they do not affect each other and improve the performance. At the same time, the operation of the disc assembly 8 is controlled by the piston rod 5, thereby realizing the opening or closing of the intake valve.

[0060] In some specific embodiments of this application, the intake valve further includes: a slider 9 and a disc valve stem 7;

[0061] The disc valve stem 7 is connected to the disc assembly 8 to fix the disc assembly 8; one end of the slider 9 is connected to the disc assembly 8 and the other end is connected to the piston rod 5. The disc valve stem 7 is connected to the disc assembly 8 to push the slider 9 to move through the piston rod 5. The slider 9 drives the disc assembly 8 to rotate and open the intake valve.

[0062] The slider 9 is connected to the disc assembly 8 via a screw-like locking mechanism. The horizontal force of the slider 9 is converted into rotational force because the position of the slider 9 relative to the disc assembly 8 is not exactly in the center, but in the upper right. Furthermore, the disc assembly 8 is fixed by the disc valve rod 7. As the piston rod 5 moves linearly, it causes the disc assembly 8 to rotate counterclockwise.

[0063] Specifically, by communicating with the external air intake, gas is introduced into the first chamber 32. The pressure in the first chamber 32 increases, squeezing the large diaphragm 2 and pushing the piston rod 5 to slide. The piston rod 5 drives the slider 9 to slide, and the slider 9 drives the disc assembly 8 to rotate. Since the slider 9 is located to the right of the disc assembly 8, and the disc assembly 8 is fixed by the disc valve rod 7, as the piston rod 5 moves linearly, the slider 9 will drive the disc assembly 8 to rotate counterclockwise, thereby opening the air intake valve.

[0064] In the above embodiments of this application, the connection between the slider 9, the disc valve rod 7, the disc assembly 8, and the piston rod 5 enables the piston rod 5 to drive the disc assembly 8 to rotate counterclockwise to open the intake valve through linear motion. At the same time, because the slider 9 is not located in the exact center of the disc assembly 8, it can effectively convert horizontal force into rotational force, ensuring the accuracy and stability of the action and improving the reliability and efficiency of the entire intake valve opening process.

[0065] In some specific embodiments of this application, the piston rod 5 has a groove 51 on its peripheral wall, and the other end of the slider 9 is located in the groove 51.

[0066] In the above embodiments of this application, by providing a groove 51 on the peripheral wall of the piston rod 5, and positioning the slider 9 within the groove 51, the slider 9 moves within the groove 51 as the piston rod 5 slides, thereby limiting the position of the slider 9.

[0067] In some specific embodiments of this application, the valve seat 16 is provided with a vent 161, which is disposed opposite to the other end of the piston rod 5. The other end of the piston rod 5 can close the vent 16. The other end of the piston rod 5 is provided with a clearance valve 4, which closes the vent 161 when the piston rod 5 drives the disc assembly 8 to move.

[0068] Specifically, the vent 161 is located on the valve seat 16, opposite to the other end of the piston rod 5. The other end of the piston rod 5 can close the vent 16. In the initial state, the vent 161 is open and the intake valve is closed. When external gas enters the first chamber 32 of the valve body 3, the pressure in the first chamber 32 increases, pushing the large diaphragm 2 to move. The large diaphragm 2 pushes the piston rod 5 to move. When the piston rod 5 moves a certain distance, the vent 161 is blocked by the clearance valve 4. The external pressure continues to increase, keeping the pressure in the first chamber 32 constant. The slider 9 drives the disc assembly 8 to remain open, thus realizing the continuous opening of the intake valve.

[0069] In the above embodiments of this application, by setting a vent 161 and a clearance valve 4, gas pressure can be released through the vent 161 when the system is not in operation in the initial state. In the operating state, the clearance valve 4 on the piston rod 5 can block the vent 161 and keep the intake valve continuously open.

[0070] In some specific embodiments of this application, the intake valve further includes a valve block 11, which is disposed on the cylinder head 6. The valve block 11 has an intake port 111 that communicates with the first chamber 32 and is used to introduce gas generated by an external air compressor into the first chamber 32. The valve block 11 has a small diaphragm 12 and a thin gasket 13, which are disposed at the connection between the valve block 11 and the cylinder head 6. The thin gasket 13 is used to seal the valve block 11 and the cylinder head 6. The small diaphragm 12 is used to prevent negative pressure from entering the first chamber 32 when there is negative pressure at the intake port 111 of the valve block 11. A sealed cavity is formed between the large diaphragm 2 and the cylinder head 6 in the first chamber 32. After the air compressor receives a control signal, air is introduced into the sealed cavity through the intake port 111 to increase the air pressure in the sealed cavity and drive the large diaphragm 2 to push the piston rod 5 to move.

[0071] Among them, the use of cylinder head 6 in conjunction with large diaphragm 2 enables the intake valve to achieve rapid response and low pressure loss when loaded, and low driving force requirement: the lightweight design of the diaphragm allows for rapid opening and closing when driven by air pressure or hydraulic pressure (response time can be as low as milliseconds), and lower energy consumption.

[0072] In the above embodiments of this application, by providing a valve block 11 with an air inlet 111 on the cylinder head 6, gas generated by an external air compressor can be efficiently introduced into the first chamber 32 to provide power. A thin gasket 13 and a small diaphragm 12 are provided at the connection between the valve block 11 and the cylinder head 6. The thin gasket 13 effectively ensures the sealing between the valve block 11 and the cylinder head 6 to prevent gas leakage. The small diaphragm 12 can prevent negative pressure from entering the first chamber 32 when negative pressure occurs at the air inlet 111 of the valve block 11, avoiding interference with the air pressure in the chamber and the overall operation. At the same time, the large diaphragm 2 and the cylinder head 6 form a sealed cavity in the first chamber 32. The air inlet 111 increases the air pressure in the sealed cavity to drive the large diaphragm 2 to push the piston rod 5 to move, ensuring the stable realization of the intake valve function.

[0073] In some specific embodiments of this application, the intake valve further includes a bearing 10, which is sleeved on the outer peripheral wall of the piston rod 5, and the piston rod 5 can slide within the bearing 10; a spring 1, which is sleeved on the piston rod 5, is used to reset the piston rod 5; the inner wall of the first chamber 32 is provided with a first limiting part, one end of the piston rod 5 is provided with a second limiting part, and the two ends of the spring 1 respectively abut against the first limiting part and the second limiting part, for limiting the position of the spring 1.

[0074] Among them, bearing 10 is a copper-based oilless bearing.

[0075] It should be noted that the bearing 10 used on the piston rod 5 is a copper-based oilless bearing (self-lubricating and corrosion-resistant), which can ensure long-term operation without lubrication (oilless type). The material composition of the copper-based oilless bearing is as follows: a. PTFE / Pb mixture 0.01-0.03mm, a wear-resistant material that forms a transfer film during operation to protect the grinding shaft. b. Copper powder layer 0.20-0.35mm, which improves the bonding strength between PTFE / Pb and the copper plate layer, providing excellent load-bearing capacity and wear resistance. Its high thermal conductivity allows for rapid heat transfer during operation. c. Copper substrate, which improves the load-bearing capacity and heat transfer of the bearing 10 and provides better corrosion resistance.

[0076] In some specific embodiments of this application, the intake valve further includes: an adjusting fixing sleeve 14 and an adjusting rod 15;

[0077] The adjusting rod 15 is located at the air outlet, and the adjusting fixing sleeve 14 is fitted on the outer peripheral wall of the adjusting rod 15 and located inside the air outlet to adjust the size of the air outlet.

[0078] Specifically, during installation, the adjusting rod 15 is positioned at the air outlet, and then the adjusting fixing sleeve 14 is fitted onto the outer circumferential wall of the adjusting rod 15, positioning it inside the air outlet. When it is necessary to adjust the size of the air outlet, simply rotate or move the adjusting fixing sleeve 14 on the adjusting rod 15. When the adjusting rod 15 is loosened, the two parts are connected; when tightened, the two parts are disconnected, allowing for adjustment. By adjusting the gap between the fixing sleeve 14 and the inner wall of the air outlet, the size of the air outlet can be adjusted to meet the air output requirements under different operating conditions.

[0079] In the above embodiments of this application, by fitting the adjusting fixing sleeve 14 onto the outer peripheral wall of the adjusting rod 15 and placing it inside the air outlet, the size of the air outlet can be easily adjusted by adjusting the position of the adjusting fixing sleeve 14 on the adjusting rod 15. This allows for flexible control of the air output according to actual needs, improving the adaptability of the intake valve to different working conditions and enhancing the practicality and functionality of the intake valve.

[0080] The preferred features in the above embodiments can be used individually in any embodiment, or in any combination thereof, provided they do not conflict with each other. Furthermore, parts not described in detail in the embodiments can be implemented using existing technologies.

[0081] The foregoing has described some specific embodiments of this application. It should be understood that this application is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this application. The above-described preferred features can be used in any combination without conflict.

Claims

1. A novel intake valve, characterized in that, include: Valve body, valve seat, cylinder head, piston rod, disc assembly, and large diaphragm; The valve seat is connected to one end of the valve body, and the cylinder head is connected to the other end of the valve body to form the housing of the intake valve; The piston rod is disposed in the valve body and connected to the disc assembly, and is used to drive the disc assembly to control the intake valve to open or close. The large diaphragm is sandwiched between the valve body and the cylinder head, with one end face abutting against one end of the piston rod to push the piston rod to move.

2. The novel intake valve according to claim 1, characterized in that, The large diaphragm is provided with a clamping part, which is fixed at the connection between the valve body and the cylinder head; The clamping part is provided with a limiting protrusion, and the end of the valve body connected to the cylinder head is provided with a limiting groove. The limiting protrusion is disposed in the limiting groove to restrict the movement of the large diaphragm between the valve body and the cylinder head.

3. The novel intake valve according to claim 2, characterized in that, The large diaphragm is provided with a fabric clamp, which is embedded in the large diaphragm; The interlayer fabric is one or more layers of fabric.

4. A novel intake valve according to claim 1, characterized in that, The valve body is provided with a first chamber and a second chamber; The first chamber is located on one side of the second chamber, one end of the second chamber is connected to the outside atmosphere, and the other end is connected to the air outlet; The piston rod and the large diaphragm are disposed in the first chamber to seal the first chamber. The disc assembly is disposed within the second chamber and is used to open or close the second chamber.

5. A novel intake valve according to claim 4, characterized in that, The intake valve also includes: a slider and a disc valve stem; The disc valve stem is connected to the disc assembly and is used to fix the disc assembly; One end of the slider is connected to the disc assembly, and the other end is connected to the piston rod. The slider is used to push the disc assembly to rotate and open the intake valve.

6. A novel intake valve according to claim 5, characterized in that, The piston rod has a groove on its peripheral wall, and the other end of the slider is located in the groove.

7. A novel intake valve according to claim 4, characterized in that, The intake valve also includes a valve block, which is disposed on the cylinder head. The valve block has an intake port, which communicates with the first chamber and is used to introduce gas generated by an external air compressor into the first chamber. The valve block is provided with a small diaphragm and a thin gasket, which are disposed at the connection between the valve block and the cylinder head. One side of the thin gasket is attached to the cylinder head to seal the valve block and the cylinder head. The other side of the small diaphragm and the thin gasket are attached to prevent negative pressure from entering the first chamber when there is negative pressure at the valve block inlet. A sealed cavity is formed between the large diaphragm and the cylinder head in the first chamber. After the air compressor receives the control signal, air is introduced into the sealed cavity through the air inlet to increase the air pressure in the sealed cavity and drive the large diaphragm to push the piston rod to move.

8. A novel intake valve according to claim 7, characterized in that, The intake valve also includes: A bearing is sleeved on the outer peripheral wall of the piston rod, and the piston rod can slide within the bearing; A spring, sleeved on the piston rod, is used to reset the piston rod; The inner wall of the first chamber is provided with a first limiting part, one end of the piston rod is provided with a second limiting part, and the two ends of the spring respectively abut against the first limiting part and the second limiting part to limit the position of the spring; The bearing in question is a copper-based oilless bearing.

9. A novel intake valve according to any one of claims 1-8, characterized in that, The intake valve also includes: an adjusting fixing sleeve and an adjusting rod; The adjusting rod is located at the air outlet, and the adjusting fixing sleeve is fitted on the outer peripheral wall of the adjusting rod and located inside the air outlet, for adjusting the size of the air outlet.

10. A novel intake valve according to any one of claims 1-8, characterized in that, The valve seat is provided with a vent port, which is positioned opposite to the other end of the piston rod. The other end of the piston rod can close the vent port. The other end of the piston rod is provided with a relief valve, which closes the vent when the piston rod drives the disc assembly to move.

Images