A solenoid valve with rapid exhaust function

Abstract

This invention relates to the field of solenoid valve technology and discloses a solenoid valve with rapid venting function. The solenoid valve includes a valve body, an inlet pipe, and an outlet pipe. A solenoid valve drive structure is electrically connected to the top of the valve body. The inlet pipe is fixedly connected to one end of the valve body, and the outlet pipe is fixedly connected to the other end. An extension port is fixedly connected to the outer end of the outlet pipe. Microchannel outlet pipes are distributed on the outer wall of the outlet pipe. The microchannel outlet pipes are obliquely oriented tubular structures extending to the right. A sleeve is fitted around the outside of the microchannel outlet pipe and is fixedly connected to a second flange. The sleeve is used to fit onto the microchannel outlet pipe to output gas to the microchannel outlet port of the second flange. This invention improves the gas discharge speed, effectively guides gas flow, and allows gas to be discharged more smoothly from the solenoid valve, greatly shortening the venting time and improving the rapid venting performance of the solenoid valve.

Description

Technical Field

[0001] This invention relates to the field of solenoid valve technology, specifically to a solenoid valve with a rapid venting function. Background Technology

[0002] Solenoid valves are electromagnetically controlled industrial devices and are fundamental components of automated systems used to control gases. Solenoid valves can be used with different circuits to achieve the desired control, while ensuring both control precision and flexibility. Different solenoid valves play different roles in different parts of the control system.

[0003] Existing solenoid valve designs use exhaust and intake pipes of the same diameter, which can easily cause obstruction during exhaust operation, resulting in slow exhaust speed and long exhaust time. Traditional straight-pipe exhaust structures are unable to achieve high-flow-rate exhaust and cannot flexibly adjust the exhaust flow rate according to actual working requirements. The exhaust pipe's exhaust channel cannot automatically adjust according to the exhaust flow rate, making it difficult to meet market demands. Therefore, a corresponding technical solution needs to be designed to address this issue. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a solenoid valve with rapid exhaust function, thus solving its technical problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a solenoid valve with a rapid exhaust function, comprising a solenoid valve body, an intake pipe and an exhaust pipe, wherein a solenoid valve drive structure is electrically connected above the solenoid valve body, and the solenoid valve drive structure is used to electrically control the opening and closing of the solenoid valve body.

[0006] The intake pipe is fixedly connected to one end of the solenoid valve body, and a flange is fixedly provided at the outer end of the intake pipe;

[0007] The exhaust pipe is fixedly connected to the other end of the solenoid valve body. An extension port is fixedly connected to the outer end of the exhaust pipe. A flange two is fixedly provided at the outer end of the extension port. Flange one and flange two are used to install the solenoid valve body onto the equipment to control the inlet and outlet of the gas.

[0008] The outer wall of the exhaust pipe is fixedly connected to a microchannel exhaust pipe. The microchannel exhaust pipe is a tubular structure that extends outward and to the right at an angle. A sleeve is fitted around the outside of the microchannel exhaust pipe. The sleeve is fixedly connected to the circumference of the second flange. The sleeve is used to fit onto the microchannel exhaust pipe so that gas can be output to the microchannel exhaust port of the second flange.

[0009] Preferably, a main vent is provided in the middle of the flange two, and microchannel vents and mounting holes are distributed around the circumference of the flange two, with the microchannel vents and mounting holes arranged in an alternating pattern. The main vent is located at the outer end of the extension port, and the microchannel vents are located at the outer end of the sleeve. The alternating pattern of the microchannel vents and mounting holes facilitates installation or venting and avoids misalignment. The main vent is used to output gas from the extension port. The main vent and multiple microchannel vents allow gas to be discharged simultaneously from multiple directions, effectively dispersing the pressure in the exhaust pipe and reducing pressure fluctuations during the venting process. Compared with the traditional single-channel venting structure, multi-channel venting can reduce the impact and vibration of gas during the venting process, improve the stability and safety of the solenoid valve, and improve the venting efficiency of the solenoid valve, especially in high-pressure, high-flow working environments, better meeting the venting needs of the system.

[0010] Preferably, the upper inner side of the microchannel vent pipe has a beveled blade structure and is needle-shaped. An inner cylinder is slidably connected inside the microchannel vent pipe, and a sealing sleeve is fitted around the outer side of the inner cylinder. An extension rod is fixedly provided at the outer end of the inner cylinder, and a connecting rod is fixedly provided at the outer end of the extension rod. A telescopic rod is connected to the outer end of the connecting rod. The telescopic rod has an L-shaped structure and an electric telescopic device is connected to its inner end. A support is fixedly provided on the inner side of the electric telescopic device, and the support is fixedly located on the outer side of the microchannel vent pipe. The right end of the beveled blade structure and needle-shaped microchannel vent pipe is adjusted in conjunction with the inner cylinder to regulate the exhaust flow. The sealing sleeve is used to seal against the inner wall of the microchannel vent pipe to prevent air leakage. The extension rod and connecting rod are used to fix and support the telescopic rod at the outer end. The support is used to support the electric telescopic device on the outer side of the microchannel vent pipe. The electric telescopic device is used to automatically control the telescopic rod's extension and retraction adjustment.

[0011] Preferably, the outer end of the inner cylinder is symmetrically fixed with an auxiliary rod. The auxiliary rod extends to the right and then rotates to the left to fix a support plate. The inner end of the support plate is fixed with a limiting block. Limiting grooves are opened at the front and rear ends of the microchannel air outlet pipe. The limiting block is slidably connected to the inside of the limiting groove. The auxiliary rod is used to extend to the left to support the support plate and the limiting block. The limiting block is used to limit the inner cylinder to move laterally within the limiting groove, providing stable guidance and limiting for the sliding of the inner cylinder. This ensures that the inner cylinder will not deviate or shake during the sliding process, thus guaranteeing the stability and reliability of the microchannel air outlet mechanism. At the same time, the cooperation of the limiting groove and the limiting block can also prevent the inner cylinder from sliding excessively, avoiding damage to the microchannel air outlet pipe and extending the service life of the solenoid valve.

[0012] Preferably, the extension port is provided with an elastic diaphragm inside, and a connecting spring rod is fixedly distributed around the right end of the elastic diaphragm. The connecting spring rod is adapted to the flared extension port and has an oblique structure. A positioning seat is fixedly provided at the right end of the connecting spring rod, and the positioning seat is fixedly disposed on the inner side wall of the second flange. The positioning seat is used to fix to the inner side wall of the second flange and support the connecting spring rod. The connecting spring rod is used to elastically support the elastic diaphragm. The elastic diaphragm seals against the inner wall of the extension port and can seal the exhaust channel when the solenoid valve is closed.

[0013] Preferably, a guide seat is fixedly provided at the middle of the right end of the elastic diaphragm, and air inlets are distributed around the circumference of the guide seat. The air inlets have an arc-shaped structure and extend to the right end to provide an air outlet. The air outlets are distributed around the right end of the guide seat. During the depressurization process of the elastic diaphragm, the guide seat can guide the depressurized gas to a specific direction. Through the design of the air inlets and outlets, the flow of gas in the extension port can be accelerated, further improving the exhaust speed. At the same time, it can also reduce the residual gas in the extension port and avoid gas backflow and pressure fluctuations.

[0014] Preferably, a suction structure is provided at the middle of the right end of the air guide seat. A suction ring plate is connected to the outer wall of the suction structure. Connecting pipes are distributed at the outer end of the suction ring plate. A suction seat is connected to the left end of the connecting pipe. The suction seat is fixed at the right end of the air outlet in a trapezoidal structure. An air outlet is provided at the right end of the suction structure. The suction structure is used to control active suction. Multiple sets of connecting pipes are connected to the suction seat to draw air, and the air outlet is used to exhaust air, further enhancing the suction effect and quickly extracting the gas in the exhaust pipe. This allows the solenoid valve to reduce the pressure in the exhaust pipe more quickly under high pressure relief, improving the system's response speed and safety.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] (1) The microchannel outlet pipe of the solenoid valve is a tubular structure with an outward and rightward slant, which allows the gas to flow along this direction and path when it is discharged, thus diverting the gas flow to the exhaust pipe and reducing the obstruction and vortex phenomenon of the gas in the exhaust pipe, thereby improving the gas discharge speed. Compared with the traditional straight pipe exhaust structure, the slant extension structure of the microchannel outlet pipe can guide the gas flow more effectively, so that the gas can be discharged from the solenoid valve more smoothly, greatly shortening the exhaust time and improving the rapid exhaust performance of the solenoid valve. The inner cylinder is slidably connected inside the microchannel outlet pipe, which facilitates the automatic control of the sliding adjustment of the inner cylinder, further enabling the solenoid valve to flexibly adjust the exhaust flow of the microchannel according to the actual working requirements.

[0017] (2) By setting an elastic diaphragm inside the extension port, when the pressure in the exhaust pipe exceeds the set value, the elastic diaphragm will deform elastically under the pressure and expand to the right, thereby increasing the exhaust passage of the exhaust pipe and realizing rapid pressure relief. Compared with the traditional rigid pressure relief structure, the elastic diaphragm has the characteristic of self-adaptation and can automatically adjust the pressure relief degree according to the pressure change. No additional control device is required. The structure is simple and the response speed is fast. It can effectively protect the solenoid valve and improve the safety and reliability of the solenoid valve.

[0018] (3) The overall structure is compact and does not occupy extra space, making the solenoid valve more convenient to install and use. It also reduces the risk of failure caused by the dispersion of components and achieves efficient and rapid gas emission. It meets the needs of modern industrial equipment for efficient, stable and safe gas control and has broad application prospects and market value. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall front upper right view structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall front lower left view structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the outer end structure of the exhaust pipe of the present invention;

[0022] Figure 4 This is a schematic diagram of the inner end structure of the exhaust pipe of the present invention;

[0023] Figure 5 This is an external schematic diagram of the microchannel air outlet mechanism of the present invention;

[0024] Figure 6 This is a schematic diagram of the microchannel air outlet mechanism of the present invention from an upper view.

[0025] Figure 7 This is a schematic diagram of the interior of the microchannel air outlet mechanism of the present invention from a lower perspective;

[0026] Figure 8 This is a schematic diagram of the internal cross-sectional structure of the microchannel air outlet mechanism of the present invention;

[0027] Figure 9 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0028] Figure 10 This is a schematic diagram of the elastic diaphragm limiting and pressure relief mechanism of the present invention;

[0029] Figure 11 This is a partial structural diagram of the elastic diaphragm limiting and pressure relief mechanism of the present invention;

[0030] Figure 12 This is a schematic diagram of the side cross-sectional structure of the elastic diaphragm limiting and pressure relief mechanism of the present invention.

[0031] In the diagram: 1. Solenoid valve body; 11. Solenoid valve drive structure;

[0032] 2. Intake pipe; 21. Flange 1;

[0033] 3. Exhaust pipe; 31. Extension port; 32. Flange II; 321. Main exhaust port; 322. Microchannel exhaust port; 323. Mounting hole;

[0034] 4. Microchannel vent pipe; 401. Limiting groove; 41. Sleeve; 42. Inner cylinder; 421. Sealing sleeve; 43. Extension rod; 431. Connecting rod; 44. Electric telescopic device; 441. Telescopic rod; 442. Support; 45. Auxiliary rod; 451. Support plate; 452. Limiting block;

[0035] 5. Elastic diaphragm; 51. Connecting spring rod; 511. Positioning seat; 52. Air guide seat; 521. Air inlet; 522. Air outlet; 53. Suction seat; 531. Connecting pipe; 54. Suction structure; 541. Suction ring plate; 542. Air outlet. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figures 1-12 The present invention provides a technical solution: a solenoid valve with a rapid exhaust function, including a solenoid valve body 1, an intake pipe 2 and an exhaust pipe 3, and an solenoid valve drive structure 11 electrically connected above the solenoid valve body 1, the solenoid valve drive structure 11 being used for electric control of the opening and closing of the solenoid valve body 1.

[0038] The intake pipe 2 is fixedly connected to one end of the solenoid valve body 1, and the outer end of the intake pipe 2 is fixedly provided with a flange 21;

[0039] The exhaust pipe 3 is fixedly connected to the other end of the solenoid valve body 1. An extension port 31 is fixedly connected to the outer end of the exhaust pipe 3. A flange 22 is fixedly provided at the outer end of the extension port 31. The flange 21 and the flange 32 are used to install the solenoid valve body 1 onto the equipment to control the air inlet and outlet.

[0040] The outer wall of the exhaust pipe 3 is fixedly connected to a microchannel exhaust pipe 4. The microchannel exhaust pipe 4 is a tubular structure that extends outward and to the right at an angle. A sleeve 41 is fitted around the outside of the microchannel exhaust pipe 4. The sleeve 41 is fixedly connected to the circumference of the flange 2 32. The sleeve 41 is used to fit onto the microchannel exhaust pipe 4 so that the gas can be output to the microchannel exhaust port 322 of the flange 2 32.

[0041] Further improvements include a main vent 321 at the center of flange 2 32, and microchannel vents 322 and mounting holes 323 distributed around the perimeter of flange 2 32, with the microchannel vents 322 and mounting holes 323 arranged in an alternating distribution structure.

[0042] The main vent 321 is located at the outer end of the extension port 31, and the microchannel vent 322 is located at the outer end of the sleeve 41.

[0043] The staggered distributed microchannel vents 322 and mounting holes 323 facilitate installation or venting, avoiding confusion. The main vent 321 is used to output the gas from the extension port 31. The main vent 321 and multiple microchannel vents 322 allow gas to be discharged simultaneously from multiple directions, effectively dispersing the pressure inside the exhaust pipe 3 and reducing pressure fluctuations during the venting process. Compared with the traditional single-channel venting structure, multi-channel venting can reduce the impact and vibration of gas during the venting process, improve the stability and safety of the solenoid valve, and improve the venting efficiency of the solenoid valve, especially in high-pressure and high-flow working environments, which can better meet the venting needs of the system.

[0044] The microchannel exhaust mechanism works in conjunction with the main exhaust port. During normal exhaust, the main exhaust port undertakes the main exhaust task, while the microchannel exhaust mechanism serves as an auxiliary exhaust channel to further improve the exhaust speed.

[0045] When the system experiences abnormally high pressure, the microchannel venting mechanism can respond quickly by adjusting the position of the inner cylinder and increasing the exhaust volume. It shares the exhaust pressure with the main vent, preventing the solenoid valve from being damaged due to excessive pressure. This collaborative working method ensures that the solenoid valve maintains good exhaust performance and safety under different working conditions.

[0046] Further improvements include a beveled blade structure on the inner side of the upper end of the microchannel vent tube 4, which is needle-shaped, and an inner cylinder 42 is slidably connected inside the microchannel vent tube 4, with a sealing sleeve 421 fitted on the outside of the inner cylinder 42.

[0047] An extension rod 43 is fixedly provided at the outer end of the inner cylinder 42. A connecting rod 431 is fixedly provided at the outer end of the extension rod 43. A telescopic rod 441 is connected to the outer end of the connecting rod 431. The telescopic rod 441 has an L-shaped rod structure and an electric telescopic device 44 is connected to its inner end. A support 442 is fixedly provided on the inner side of the electric telescopic device 44. The support 442 is fixedly provided on the outer side of the microchannel air outlet pipe 4.

[0048] The right end of the slanted blade-shaped microchannel vent pipe 4 is adjusted in conjunction with the inner cylinder 42 to regulate the exhaust flow. The sealing sleeve 421 is used to seal against the inner wall of the microchannel vent pipe 4 to prevent air leakage. The extension rod 43 and the connecting rod 431 are used to fix and support the telescopic rod 441 to the outside. The support 442 is used to support the electric telescopic device 44 to the outside of the microchannel vent pipe 4. The electric telescopic device 44 is used to automatically control the extension and retraction adjustment of the telescopic rod 441.

[0049] Further improvements include an auxiliary rod 45 fixedly mounted symmetrically at the outer end of the inner cylinder 42; the auxiliary rod 45 extends to the right and then rotates to the left to be fixedly mounted on a support plate 451; and a limiting block 452 is fixedly mounted at the inner end of the support plate 451.

[0050] The microchannel air outlet pipe 4 has a limiting groove 401 at the front and rear ends, and the limiting block 452 is slidably connected to the limiting groove 401 for limiting.

[0051] The auxiliary rod 45 is used to extend to the left to support the support plate 451 and the limiting block 452. The limiting block 452 is used to limit the inner cylinder 42 to move laterally within the limiting groove 401, providing stable guidance and limiting for the sliding of the inner cylinder 42. This ensures that the inner cylinder 42 will not deviate or shake during the sliding process, thus guaranteeing the stability and reliability of the microchannel air outlet mechanism. At the same time, the cooperation between the limiting groove 401 and the limiting block 452 can also prevent the inner cylinder from sliding excessively, avoiding damage to the microchannel air outlet pipe 4 and extending the service life of the solenoid valve.

[0052] Further improvements include an elastic diaphragm 5 inside the extension opening 31, with connecting spring rods 51 fixedly distributed around the right end of the elastic diaphragm 5. The connecting spring rods 51 are adapted to the flared structure of the extension opening 31, which is in an oblique shape. A positioning seat 511 is fixedly provided at the right end of the connecting spring rod 51, and the positioning seat 511 is fixedly provided on the inner side wall of the flange 32.

[0053] The positioning seat 511 is used to fix to the inner side wall of flange 2 32 and support the connecting spring rod 51. The connecting spring rod 51 is used to elastically support the elastic diaphragm 5. The elastic diaphragm 5 is sealed against the inner wall of the extension port 31 and can seal the exhaust passage when the solenoid valve is closed.

[0054] Further improved, an air guide seat 52 is fixedly provided at the middle of the right end of the elastic diaphragm 5. An air intake 521 is distributed around the air guide seat 52. The air intake 521 has an arc-shaped structure and extends to the right end to provide an air outlet 522. The air outlet 522 is distributed around the right end of the air guide seat 52.

[0055] During the depressurization process of the elastic diaphragm 5, the air guide seat 52 can guide the depressurized gas to a specific direction. Through the design of the air inlet 521 and the air outlet 522, it can accelerate the flow of gas in the extension port 31, further improve the exhaust speed, and at the same time reduce the gas residue in the extension port 31, avoiding gas backflow and pressure fluctuation.

[0056] Specifically, the air guide seat 52 is provided with a suction structure 54 at the middle of the right end. The outer wall of the suction structure 54 is connected to a suction ring plate 541. The outer end of the suction ring plate 541 is connected to a connecting pipe 531. The connecting pipe 531 is connected to a suction seat 53 to the left end. The suction seat 53 is fixedly located at the right end of the air outlet 522 in a trapezoidal structure. The right end of the suction structure 54 is provided with an air outlet 542.

[0057] The suction structure 54 is used to control active suction. Multiple sets of connecting pipes 531 are connected to the suction base 53 for suction, and the air outlet 542 is used for exhaust. This further enhances the suction effect and quickly extracts the gas in the exhaust pipe 3, so that the solenoid valve can reduce the pressure in the exhaust pipe 3 more quickly under high pressure relief, thereby improving the system's response speed and safety.

[0058] Working principle: The solenoid valve body 1 is installed on the equipment through flange 1 21 and flange 2 32. The solenoid valve drive structure 11 is activated to control the automatic opening of the inlet and outlet air.

[0059] When rapid venting is required, one or more sets of electric telescopic devices 44 can be activated to automatically control the telescopic rod 441 to extend and adjust. Through the connecting rod 431 and the extension rod 43, the inner cylinder 42 and the sealing sleeve 421 are moved and adjusted at the end of the microchannel vent pipe 4, closing inward or opening outward to vent, increasing the venting area, increasing the venting speed, and venting to the sleeve 41, and then outputting through the microchannel vent hole 322. When a stable gas flow rate is required, the inner cylinder 42 can be slid inward to reduce the venting area and ensure the stability of the gas flow rate.

[0060] It integrates multiple sets of microchannel exhaust pipes with 4 parallel channels, which improves exhaust efficiency by increasing the exhaust cross-sectional area and flow rate; the gas is discharged simultaneously through multiple microchannels, which significantly increases the total flow rate and exhaust speed, and the blockage of a single microchannel does not affect the overall exhaust performance.

[0061] The pressure inside the exhaust channel rises rapidly, and the elastic diaphragm 5 moves outward under pressure. After being elastically compressed by multiple sets of connecting spring rods 51, the flow rate of the extension port 31 is expanded, thus achieving rapid exhaust.

[0062] Simultaneously, the suction structure 54 is activated to draw air through the suction ring plate 541, and then through multiple sets of connecting pipes 531 at the outer end, the suction seat 53, the air outlet 522 and the suction port 521 to draw air from all directions. The air is then concentrated and discharged under high pressure through the air outlet 542, and finally output through the main air outlet 321.

[0063] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0064] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A solenoid valve with rapid exhaust function, comprising a solenoid valve body (1), an intake pipe (2), and an exhaust pipe (3), characterized in that: The upper part of the solenoid valve body (1) is electrically connected to a solenoid valve drive structure (11). The air intake pipe (2) is fixedly connected to one end of the solenoid valve body (1), and a flange (21) is fixedly provided at the outer end of the air intake pipe (2). The exhaust pipe (3) is fixedly connected to the other end of the solenoid valve body (1), and the outer end of the exhaust pipe (3) is fixedly connected to an extension port (31), and the outer end of the extension port (31) is fixedly provided with a flange (32). The outer wall of the exhaust pipe (3) is fixedly connected with a microchannel exhaust pipe (4). The microchannel exhaust pipe (4) is a tubular structure that extends outward and to the right at an angle. The outside of the microchannel exhaust pipe (4) is fitted with a sleeve (41). The sleeve (41) is fixedly connected to the circumference of the flange two (32). The flange two (32) has a main vent hole (321) in the middle, and microchannel vent holes (322) and mounting holes (323) are distributed around the flange two (32). The microchannel vent holes (322) and mounting holes (323) are arranged in an alternating distributed structure. The main vent (321) is located at the outer end of the extension port (31), and the microchannel vent (322) is located at the outer end of the sleeve (41). The upper inner side of the microchannel vent tube (4) has a slanted knife-edge structure and is needle-shaped. The inner cylinder (42) is slidably connected inside the microchannel vent tube (4), and a sealing sleeve (421) is sleeved on the outside of the inner cylinder (42). An extension rod (43) is fixedly provided at the outer end of the inner cylinder (42). A connecting rod (431) is fixedly provided at the outer end of the extension rod (43). A telescopic rod (441) is connected to the outer end of the connecting rod (431). The telescopic rod (441) has an L-shaped rod structure and an electric telescopic device (44) is connected to its inner end. A support (442) is fixedly provided on the inner side of the electric telescopic device (44). The support (442) is fixedly provided on the outer side of the microchannel air outlet pipe (4).

2. The solenoid valve with rapid exhaust function according to claim 1, characterized in that: The outer end of the inner cylinder (42) is symmetrically fixed with an auxiliary rod (45). The auxiliary rod (45) extends to the right and then rotates to the left to fix a support plate (451). The inner end of the support plate (451) is fixed with a limiting block (452). The microchannel air outlet pipe (4) has a limiting groove (401) at its front and rear ends, and the limiting block (452) is slidably connected to the inside of the limiting groove (401).

3. The solenoid valve with rapid exhaust function according to claim 1, characterized in that: The extension opening (31) is provided with an elastic diaphragm (5) inside. A connecting spring rod (51) is fixedly distributed around the right end of the elastic diaphragm (5). The connecting spring rod (51) is adapted to the flared structure of the extension opening (31) and is in an oblique shape. A positioning seat (511) is fixedly provided at the right end of the connecting spring rod (51). The positioning seat (511) is fixedly provided on the inner side wall of the flange (32).

4. A solenoid valve with rapid exhaust function according to claim 3, characterized in that: An air guide seat (52) is fixedly provided at the middle of the right end of the elastic diaphragm (5). An air inlet (521) is distributed around the air guide seat (52). The air inlet (521) is an arc-shaped structure and extends to the right end to provide an air outlet (522). The air outlet (522) is distributed around the right end of the air guide seat (52).

5. A solenoid valve with rapid exhaust function according to claim 4, characterized in that: The air guide seat (52) has a suction structure (54) at the middle of the right end. The outer wall of the suction structure (54) is connected to a suction ring plate (541). The outer end of the suction ring plate (541) is connected to a connecting pipe (531). The connecting pipe (531) is connected to an air extraction seat (53) to the left end. The air extraction seat (53) is fixed at the right end of the air outlet (522) in a trapezoidal structure. The right end of the suction structure (54) has an air outlet (542).

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