Integrated pneumatic control valve

Abstract

This utility model relates to the technical field of pneumatically controlled water valve equipment, and in particular to an integrated pneumatically controlled valve. The first valve core of the pneumatic control component is movably disposed within a first cavity, with the end of the first valve core furthest from the pneumatic control connector located on a first diaphragm. The air supply channel of the air supply component has a first opening at one end of the first valve core, through which the first valve core passes to control the opening and closing of the air supply channel. A second opening is provided on the side of the air supply channel facing the water supply component, and a second diaphragm is disposed at the second opening. One end of the second valve core of the water supply component contacts the second diaphragm, and the other end of the second valve core is located within the water supply channel. The second valve core is used to cooperate with the pneumatic control component to control the opening and closing of the water supply channel. Under normal conditions, the pneumatic control component is closed, and the air supply channel continuously supplies air, while the water supply channel simultaneously and continuously supplies water. When operation stops, the pneumatic control component supplies air; one set of pneumatic control components can simultaneously control the closing of both the air supply component and the water supply component, making operation simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic water valve equipment technology, and in particular to an integrated pneumatic control valve. Background Technology

[0002] Pneumatic valves are valves driven by compressed air. They are convenient and safe to use, and can be controlled locally or remotely. They can control a single valve or centrally control multiple valves. When combined with a computer, they can achieve programmed control. Pneumatic valves are used in various fields such as chemical, papermaking, food, pharmaceutical, drainage, and gas industries, especially in the field of water circuit automation. Existing pneumatic water valves control the water inlet assembly through an air inlet component, allowing air and water supply to be used simultaneously. When not in use, the air inlet assembly needs to be closed. However, closing the air inlet valve controlled by the air inlet assembly will affect the use of other air valves, causing operational interference, inconvenience, and cumbersome operation. Utility Model Content

[0003] In order to address the technical deficiencies mentioned in the background art, the purpose of this utility model is to provide an integrated pneumatic control valve.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An integrated pneumatic control valve includes a pneumatic control component, a gas supply component, a water supply component, a first diaphragm disposed between the pneumatic control component and the gas supply component, and a second diaphragm disposed between the gas supply component and the water supply component, arranged sequentially. The pneumatic control component includes a first valve body, a first valve core, and a pneumatic control connector. The first valve body has a first cavity, and the pneumatic control connector communicates with one end of the first cavity, with the other end of the pneumatic control connector open. The first valve core is movably disposed within the first cavity, with the end of the first valve core away from the pneumatic control connector located on the first diaphragm. The gas supply component includes a second valve... The first valve core has a first opening at one end, through which the first valve core passes to control the opening and closing of the air supply channel. A second opening is provided on the side of the air supply channel facing the water supply assembly, and a second diaphragm is disposed at the second opening. The water supply assembly includes a third valve body, a water supply channel disposed on the third valve body, and a second valve core. One end of the second valve core contacts the second diaphragm, and the other end of the second valve core is located within the water supply channel. The second valve core is used to cooperate with the air control assembly to control the opening and closing of the water supply channel.

[0006] By adopting the above technical solution, air is introduced into the pneumatic control connector to increase the air pressure, causing the first valve core to press against the first diaphragm to seal the air supply channel. After the air supply channel stops supplying air, the air pressure at the other end of the air supply channel decreases, causing the second valve core to rebound and block the water inlet channel. This allows one set of pneumatic control components to simultaneously control one set of air supply components and one set of water supply components, making operation simple and convenient. Furthermore, using one set of pneumatic control components as the main control switch allows the air supply component to remain continuously open without affecting the use of other devices, resulting in greater controllability. The first and second diaphragms are made of flexible materials, providing better sealing. In addition to providing better sealing performance, the elastic deformation force of the first diaphragm also allows the first valve core to automatically reset, reducing costs.

[0007] Furthermore, the first cavity includes an air intake channel and a reset channel. A third diaphragm is disposed between the air intake channel and the reset channel, and the first valve core is disposed between the third diaphragm and the first diaphragm.

[0008] Furthermore, the first valve core includes a pressure-bearing portion and a sealing portion, which are T-shaped. The pressure-bearing portion increases the force-bearing area, while the sealing portion reduces the pressure-bearing area in the air supply channel, making it easier and more sensitive to drive the first valve core, thereby improving control efficiency and saving energy. The reset channel includes a moving section and a guide section. The pressure-bearing portion is located within the moving section, one end of the sealing portion is located within the moving section, and the other end of the sealing portion is located within the guide section. The other end of the sealing portion is placed on the second diaphragm, providing sufficient space for the sealing portion to ensure sealing performance.

[0009] Furthermore, the air supply channel includes an air inlet section, a sealing section, an air outlet section, and a pressurizing section connected in sequence. One end of the air inlet section is connected to an air inlet connector, and the other end of the air inlet section is bent towards the first diaphragm. The sealing section is located on one side of the first diaphragm and has the first opening. The connection positions of the air inlet section, the air outlet section, and the sealing section are staggered, which facilitates the first valve core to seal the sealing section to disconnect the air inlet section from the air outlet section, resulting in a better sealing effect. One end of the air outlet section is connected to the pressurizing section, and the other end of the pressurizing section has the second opening and is sealed to the second diaphragm. One end of the pressurizing section is connected to the air outlet connector.

[0010] Furthermore, the channel diameters of the air inlet section and the air outlet section are smaller than those of the sealing section and the pressurizing section, which facilitates reasonable space allocation and reduces the volume of the second valve body.

[0011] Furthermore, the air intake section and the air outlet section are located between the sealing section and the pressurization section, resulting in a compact structure that reduces space occupation and saves costs.

[0012] Furthermore, the bottom wall of the connection between the sealing section and the air intake section protrudes towards the first diaphragm, and the connection between the sealing section and the air intake section is located below the first valve core, which can shorten the movement stroke of the first valve core, resulting in better sealing effect and higher efficiency.

[0013] Furthermore, the third valve body is provided with a second cavity, a flow guide section, and a third cavity to form the water supply channel. The second cavity is open at one end facing the second diaphragm. One end of the second valve core is located within the second cavity, and the other end of the second valve core passes through the flow guide section and is located within the third cavity. The other end of the second valve core cooperates with the pneumatic control component and the second diaphragm to seal or open the flow guide section, resulting in high control precision and stronger linkage. The second cavity is connected to the water inlet connector, and the third cavity is connected to the water outlet connector.

[0014] In summary, the beneficial effects of this utility model are as follows:

[0015] This invention increases air pressure by introducing air through a pneumatic control connector, causing the first valve core to press against the first diaphragm to seal the air supply channel. When the air supply channel stops supplying air, the air pressure at the other end of the channel decreases, causing the second valve core to rebound and block the water inlet channel. This allows one pneumatic control assembly to simultaneously control both an air supply assembly and a water supply assembly, resulting in simple operation and convenient use. Furthermore, using one pneumatic control assembly as the main control switch allows the air supply assembly to remain continuously open without affecting the use of other devices, enhancing controllability. The first and second diaphragms are made of flexible material, providing better sealing. In addition to providing better sealing performance, the elastic deformation force of the first diaphragm also allows the first valve core to automatically reset, resulting in lower costs. Attached Figure Description

[0016] Figure 1 This is a cross-sectional structural diagram of the integrated pneumatic control valve of this utility model.

[0017] Explanation of the reference numerals in the figure:

[0018] 1. Integrated pneumatic control valve; 2. Pneumatic control assembly; 21. First valve body; 211. Air inlet channel; 212. Reset channel; 213. Exhaust port; 22. First valve core; 221. Pressure bearing part; 222. Sealing part; 23. Pneumatic control connector; 24. Third diaphragm; 3. Air supply assembly; 31. Second valve body; 32. Air supply channel; 321. Air inlet section; 322. Sealing section; 323. Air outlet section; 324. Pressurization section; 33. Air inlet connector; 34. Air outlet connector; 4. Water supply assembly; 41. Third valve body; 421. Second cavity; 422. Third cavity; 43. Second valve core; 431. Pressure bearing part; 432. Sealing part; 433. Connecting rod; 434. Reset spring; 435. Sealing ring; 44. Water inlet connector; 45. Water outlet connector; 5. First diaphragm; 6. Second diaphragm. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0020] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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, the above terms should not be construed as limitations on this utility model.

[0021] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.

[0022] The following is in conjunction with the appendix Figure 1 The embodiments of this utility model will be described in further detail below.

[0023] An integrated pneumatic control valve 1, such as Figure 1As shown, it includes a pneumatic control component 2, a gas supply component 3, a water supply component 4, a first diaphragm 5 disposed between the pneumatic control component 2 and the gas supply component 3, and a second diaphragm 6 disposed between the gas supply component 3 and the water supply component 4, arranged sequentially. The pneumatic control component 2 includes a first valve body 21, a first valve core 22, and a pneumatic control connector 23. A first cavity is provided within the first valve body 21, and the pneumatic control connector 23 communicates with one end of the first cavity, with the other end of the pneumatic control connector 23 open. The first valve core 22 is movably disposed within the first cavity, with the end of the first valve core 22 away from the pneumatic control connector 23 located on the first diaphragm 5. The gas supply component 3 includes a second valve body 31 and a gas supply channel 32 disposed within the second valve body 31. The gas supply channel 32 has a first opening at one end of the first valve core 22, through which the first valve core 22 passes to control the opening and closing of the gas supply channel 32. A second opening is provided on the side of the gas supply channel 32 facing the water supply component 4, and a second diaphragm 6 is disposed at the second opening. The water supply assembly 4 includes a third valve body 41, a water supply channel disposed on the third valve body 41, and a second valve core 43. One end of the second valve core 43 is in contact with the second diaphragm 6, and the other end of the second valve core 43 is located in the water supply channel. The second valve core 43 is used to cooperate with the pneumatic control assembly 2 to control the opening and closing of the water supply channel.

[0024] Specifically, this integrated pneumatic control valve 1 is a normally open pneumatic-controlled water valve. Under normal conditions, the pneumatic control component 2 is closed, with the air supply channel 32 continuously supplying air and the water supply channel simultaneously supplying water. When it is necessary to stop operation, the pneumatic control component 2 is opened. Air is introduced into the pneumatic control connector 23 to increase the air pressure, causing the first valve core 22 to press the first diaphragm 5 to seal the air supply channel 32. After the air supply channel 32 stops supplying air, the air pressure at the other end of the air supply channel 32 decreases, and the second valve core 43 rebounds to block the water inlet channel. Thus, one set of pneumatic control components 2 can simultaneously control the opening and closing of one set of air supply components 3 and one set of water supply components 4, making operation simple and convenient. Moreover, by using one set of pneumatic control components 2 as the main control switch, the air supply to the air supply component 3 can be continuously opened, thus not affecting the use of other devices, resulting in stronger controllability. The first diaphragm 5 and the second diaphragm 6 are made of flexible material, providing better sealing performance. Meanwhile, in addition to providing better sealing performance, the elastic deformation force of the first diaphragm 5 can also make the first valve core 22 automatically reset, resulting in lower cost.

[0025] The first valve body 21, the second valve body 31, and the third valve body 41 can be configured as hexagonal valves. The connection between the first valve body 21, the second valve body 31, the third valve body 41, the first diaphragm 5, and the second diaphragm 6 can be fixedly connected by multiple bolts.

[0026] In some embodiments, the first cavity includes an air intake channel 211 and a reset channel 212. A third diaphragm 24 is disposed between the air intake channel 211 and the reset channel 212, and a first valve core 22 is disposed between the third diaphragm 24 and the first diaphragm 5, which can improve the stability of the structure and effectively limit the movement area of ​​the first valve core 22.

[0027] Preferably, the first valve core 22 includes a pressure-bearing portion 221 and a sealing portion 222, which are T-shaped. The pressure-bearing portion 221 increases the force-bearing area, while the sealing portion 222 reduces the pressure resistance area within the air supply channel 32. This makes driving the first valve core 22 easier and more sensitive, thereby improving control efficiency and saving energy. The reset channel 212 includes a movable section and a guide section. The pressure-bearing portion 221 is located within the movable section, one end of the sealing portion 222 is located within the movable section, and the other end of the sealing portion 222 is located within the guide section. The other end of the sealing portion 222 is placed on the second diaphragm 6, providing sufficient space for the sealing portion 222 to ensure sealing performance.

[0028] One of the movable sections can be provided with an exhaust port 213. The exhaust port 213 is used to connect the movable section with the outside, so as to discharge the gas in the movable section or fill the gas in the movable section during the movement of the first valve core 22 to adjust the internal air pressure, so that the movement is smoother and easier.

[0029] In some embodiments, the air supply channel 32 includes an inlet section 321, a sealing section 322, an outlet section 323, and a pressurizing section 324 connected in sequence. One end of the inlet section 321 is connected to the inlet connector 33, and the other end of the inlet section 321 is bent toward the first diaphragm 5. The sealing section 322 is located on one side of the first diaphragm 5 and has a first opening. The connection positions of the inlet section 321, the outlet section 323, and the sealing section 322 are staggered, which facilitates the first valve core 22 to seal the sealing section 322 to disconnect the inlet section 321 and the outlet section 323, resulting in a better sealing effect. The outlet section 323 is connected to one end of the pressurizing section 324, and the other end of the pressurizing section 324 has a second opening and is sealed to the second diaphragm 6. One end of the pressurizing section 324 is connected to the outlet connector 34.

[0030] The diameters of the air inlet section 321 and the air outlet section 323 are smaller than those of the sealing section 322 and the pressurizing section 324, which facilitates reasonable space allocation and reduces the volume of the second valve body 31.

[0031] Preferably, the air intake section 321 and the air outlet section 323 are located between the sealing section 322 and the pressurization section 324, which results in a compact structure, reduced space occupation, and cost savings.

[0032] In order to shorten the stroke of the first valve core 22 and shorten the control response time, the bottom wall of the connection between the sealing section 322 and the air intake section 321 is arranged to protrude towards the first diaphragm 5, and the connection between the sealing section 322 and the air intake section 321 is located below the first valve core 22, which can shorten the movement stroke of the first valve core 22, resulting in better sealing effect and higher efficiency.

[0033] In some embodiments, the third valve body 41 is provided with a second cavity 421, a flow guide section, and a third cavity 422 to form a water supply channel. The second cavity 421 is open at one end facing the second diaphragm 6. One end of the second valve core 43 is located inside the second cavity 421, and the other end of the second valve core 43 passes through the flow guide section and is located inside the third cavity 422. The other end of the second valve core 43 cooperates with the pneumatic control assembly 2 and the second diaphragm 6 to seal or open the flow guide section, resulting in high control precision and stronger linkage. The second cavity 421 is connected to the water inlet connector 44, and the third cavity 422 is connected to the water outlet connector 45.

[0034] Specifically, the second valve core 43 includes a pressure-receiving part 431, a sealing part 432, a connecting rod 433 connecting the pressure-receiving part 431 and the sealing part 432, and a return spring 434 fitted on the connecting rod 433. One side of the pressure-receiving part 431 is in contact with the second diaphragm 6, one end of the return spring 434 abuts against the other side of the pressure-receiving part 431, and the other end of the return spring 434 abuts against the bottom wall of the second cavity 421. When the air supply channel 32 stops supplying air, the return spring 434 can cause the pressure-receiving part 431 to automatically return to its original position, and at the same time, the sealing part 432 can seal the water inlet channel, automatically sealing and making it more convenient to use. One end of the sealing part 432 is located in the guide section, and the other end of the sealing part 432 is located in the third cavity 422. The other end of the sealing part 432 is provided with a protruding sealing ring 435 to seal the water inlet channel, making opening and sealing more convenient and quick.

[0035] When the integrated pneumatic control valve 1 is in normal working condition, the pneumatic control component 2 stops working, and the air supply component 3 and the water supply component 4 work synchronously. Specifically, gas is introduced through the air inlet connector 33 and transported to the air outlet connector 34 via the air inlet section 321, sealing section 322, air outlet section 323, and pressurization section 324. Due to the continuous gas input, the internal pressure of the pressurization section 324 increases, and the gas presses against the second diaphragm 6 and the second valve core 43, causing the sealing ring 435 on the other end of the second valve core 43 to separate from the guide section, thereby opening the water supply channel. Water flows in from the water inlet connector 44 and sequentially through the second cavity 421, the guide section, and the third cavity 422 to the water outlet connector 45.

[0036] When the integrated pneumatic control valve 1 is in the closed working state, gas is input through the pneumatic control connector 23. The gas is pressurized in the air inlet channel 211 to compress the third diaphragm 24, the first valve core 22, and the first diaphragm 5 towards the sealing section 322, causing the sealing part 222 of the first valve core 22 to block the sealing section 322. This disconnects the air inlet section 321 from the outlet section 323 of the air supply channel 32, stopping the gas supply. As the outlet section 323 stops supplying gas, the air pressure inside decreases. Under the elastic restoring force of the return spring 434, the second valve core 43 moves towards the pressurization section 324, causing the sealing ring 435 on the other end of the second valve core 43 to seal with the guide section. Water in the second chamber 421 stops flowing into the third chamber 422, disconnecting the water supply. Specifically, when the pneumatic control connector 23 stops supplying gas, the air pressure in the air inlet channel 211 decreases, and the restoring force of the first diaphragm 5 can drive the first valve core 22 to reset. As for resetting the gas supply component 3 and the water supply component 4, please refer to the content corresponding to the normal working state of the integrated pneumatic control valve 1 mentioned above.

[0037] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An integrated pneumatic control valve, characterized in that, The system includes, in sequence, a pneumatic control assembly (2), a gas supply assembly (3), a water supply assembly (4), a first diaphragm (5) disposed between the pneumatic control assembly (2) and the gas supply assembly (3), and a second diaphragm (6) disposed between the gas supply assembly (3) and the water supply assembly (4); the pneumatic control assembly (2) includes a first valve body (21), a first valve core (22), and a pneumatic control connector (23); the first valve body (21) has a first cavity, the pneumatic control connector (23) is connected to one end of the first cavity, and the pneumatic control connector (23) is open at the other end of the first diaphragm (5); the first valve core (22) is movably disposed in the first cavity, and the end of the first valve core (22) away from the pneumatic control connector (23) is located on the first diaphragm (5); the gas supply assembly (3) includes a second valve body (21), a first valve core (22), a water supply assembly (4), a first diaphragm (5) disposed between the pneumatic control assembly (21) and the gas supply assembly (3), and a second diaphragm (6) disposed between the gas supply assembly (3) and the water supply assembly (4); the pneumatic control assembly (21) includes a first valve body (21), a first valve core (22), and a water supply connector (4); the first valve body (21) has a first cavity, the first valve core (22) is connected to one end of the first cavity, and the end of the first valve core (22) away from the pneumatic control connector (23) is located on the first diaphragm (5); the gas supply assembly (3) includes a second valve body (21), a first valve core (22), a water supply assembly (4), a first diaphragm (5), a first diaphragm (5), a first diaphragm (6), a second diaphragm (6), a second diaphragm ( 1) and an air supply channel (32) disposed in the second valve body (31), wherein the air supply channel (32) is provided with a first opening at one end of the first valve core (22), and the first valve core (22) passes through the first opening to control the opening and closing of the air supply channel (32); the air supply channel (32) is provided with a second opening on the side facing the water supply assembly (4), and a second diaphragm (6) is provided at the second opening; the water supply assembly (4) includes a third valve body (41), a water supply channel disposed on the third valve body (41), and a second valve core (43); one end of the second valve core (43) is in contact with the second diaphragm (6), and the other end of the second valve core (43) is located in the water supply channel, and the second valve core (43) is used to cooperate with the air control assembly (2) to control the opening and closing of the water supply channel.

2. The integrated pneumatic control valve according to claim 1, characterized in that, The first cavity includes an air intake channel (211) and a reset channel (212); a third diaphragm (24) is disposed between the air intake channel (211) and the reset channel (212), and the first valve core (22) is disposed between the third diaphragm (24) and the first diaphragm (5).

3. The integrated pneumatic control valve according to claim 2, characterized in that, The first valve core (22) includes a pressure-bearing part (221) and a sealing part (222), the pressure-bearing part (221) and the sealing part (222) are arranged in a T-shape; the reset channel (212) includes a movable section and a guide section; the pressure-bearing part (221) is located in the movable section, one end of the sealing part (222) is located in the movable section, the other end of the sealing part (222) is located in the guide section, and the other end of the sealing part (222) is placed on the second diaphragm (6).

4. The integrated pneumatic control valve according to claim 1, characterized in that, The air supply channel (32) includes an air inlet section (321), a sealing section (322), an air outlet section (323), and a pressurizing section (324) connected in sequence; one end of the air inlet section (321) is connected to the air inlet connector (33), and the other end of the air inlet section (321) is bent toward the first diaphragm (5); the sealing section (322) is located on one side of the first diaphragm (5) and is open with the first opening; the air inlet section (321), the air outlet section (323), and the sealing section (324) are connected in sequence. 23) The connection position of the sealing section (322) is offset, and the first valve core (22) is used to seal the sealing section (322) to disconnect the air inlet section (321) from the air outlet section (323); the air outlet section (323) is connected to one end of the pressurizing section (324), and the other end of the pressurizing section (324) is provided with the second opening and is sealed to the second diaphragm (6); one end of the pressurizing section (324) is connected to the air outlet connector (34).

5. The integrated pneumatic control valve according to claim 4, characterized in that, The diameters of the air intake section (321) and the air outlet section (323) are smaller than the diameters of the sealing section (322) and the pressurizing section (324).

6. The integrated pneumatic control valve according to claim 4, characterized in that, The air intake section (321) and the air outlet section (323) are located between the sealing section (322) and the pressurizing section (324).

7. The integrated pneumatic control valve according to claim 4, characterized in that, The bottom wall of the connection between the sealing section (322) and the air intake section (321) protrudes toward the first diaphragm (5), and the connection between the sealing section (322) and the air intake section (321) is located below the first valve core (22).

8. The integrated pneumatic control valve according to claim 1, characterized in that, The third valve body (41) is provided with a second cavity (421), a flow guide section and a third cavity (422) to form the water supply channel; the second cavity (421) is open at one end facing the second diaphragm (6), one end of the second valve core (43) is located in the second cavity (421), and the other end of the second valve core (43) passes through the flow guide section and is located in the third cavity (422). The other end of the second valve core (43) cooperates with the air control component (2) and the second diaphragm (6) to seal or open the flow guide section; the second cavity (421) is connected to the water inlet connector (44), and the third cavity (422) is connected to the water outlet connector (45).

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