Solenoid valve with pressure reduction function

Abstract

The application relates to the technical field of electromagnetic valves, in particular to a kind of electromagnetic valves with pressure reducing function.The electromagnetic valve with pressure reducing function includes valve body, diaphragm assembly, pilot seat, iron core assembly and pressure reducing module, the valve body is provided with liquid inlet passage, valve port and liquid outlet passage, the liquid inlet passage and the liquid outlet passage are communicated by the valve port;Diaphragm assembly is installed on the valve body, for controlling the opening / closing of valve port, a balance hole is formed in the diaphragm assembly;Pilot seat is installed on the valve body, a pilot hole is formed in the pilot seat, the pilot hole is communicated with the liquid inlet passage through the balance hole, and the pilot hole is communicated with the liquid outlet passage;Iron core assembly includes movable iron core, movable iron core can reciprocate relative to pilot seat;Pressure reducing module is arranged at the position of the liquid outlet passage of the valve body, for reducing the fluid medium passing through the liquid outlet passage.The application can reduce the installation cost, and also can reduce the space occupation of the electromagnetic valve with pressure reducing function.

Description

Technical Field

[0001] This application relates to the field of solenoid valve technology, and in particular to a solenoid valve with pressure reducing function. Background Technology

[0002] In fluid media control systems, solenoid valves and pressure reducing valves are two commonly used functional components. Solenoid valves use electromagnetic force to drive the valve core, enabling rapid control of the flow of fluid media. Pressure reducing valves, on the other hand, use the mechanical balance of an internal spring and diaphragm structure to stably regulate high-pressure fluid media to the required low pressure value, thereby ensuring the safe operation of downstream equipment. In practical applications, these two types of valves often need to work together.

[0003] In existing technologies, fluid media control systems control the flow and pressure regulation of fluid media by installing two independent valves—a solenoid valve and a pressure-reducing valve—between pipelines. These two types of valves are typically installed and commissioned separately. The pressure-reducing valve regulates the high-pressure fluid media to a safe low pressure, while the solenoid valve controls the flow. While this approach achieves basic functionality, the split layout requires two sets of independent valve structures, increasing installation costs and necessitating separate design of installation locations and connecting pipelines for each valve. Therefore, the solenoid valve and pressure-reducing valve occupy a significant amount of space in the fluid media control system. Utility Model Content

[0004] Therefore, it is necessary to provide a solenoid valve with pressure reduction function that can solve the above problems.

[0005] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0006] A solenoid valve with pressure reducing function, the solenoid valve with pressure reducing function includes:

[0007] The valve body is provided with an inlet channel, a valve port, and an outlet channel, and the inlet channel and the outlet channel are connected through the valve port.

[0008] A diaphragm assembly, mounted on the valve body, is used to control the opening / closing of the valve port. The diaphragm assembly has a balance hole.

[0009] A pilot seat is installed on the valve body. The pilot seat has a pilot hole. The pilot hole is connected to the liquid inlet channel through the balance hole and is also connected to the liquid outlet channel.

[0010] The core assembly includes a movable core, which is capable of reciprocating relative to the pilot seat to control the opening / closing of the pilot hole;

[0011] A pressure reducing module is installed on the valve body at the location of the liquid outlet channel, and is used to reduce the pressure of the fluid medium passing through the liquid outlet channel.

[0012] Understandably, this application integrates the pressure-reducing function into a solenoid valve by setting up a solenoid valve with a pressure-reducing module. In practical use, this allows a single solenoid valve with pressure-reducing function to achieve both controlling the flow of fluid media and regulating the pressure of the fluid media passing through it. Therefore, it not only reduces installation costs but also minimizes the space occupied by the solenoid valve in fluid media control applications, as it eliminates the need for two valves and their connecting pipelines. Furthermore, the pilot seat structure allows the solenoid valve with pressure-reducing function to be used in high-pressure, high-flow-rate scenarios, while also shortening the response time when opening or closing.

[0013] In one embodiment, the pilot seat is assembled to the valve body by a plug-in engagement and is connected and sealed to the valve body;

[0014] The pilot seat is provided with a connecting channel, the inlet of the connecting channel is connected to the pilot hole, and the outlet of the connecting channel is located on the outer peripheral wall of the pilot seat.

[0015] The valve body has a notch, which is connected to the outlet and the liquid outlet channel.

[0016] In one embodiment, the pilot seat is provided with a flow guide hole, and the balance hole can communicate with the pilot hole through the flow guide hole;

[0017] Furthermore, a flow guide groove is provided on one end face of the pilot seat facing the diaphragm assembly. The flow guide groove is correspondingly provided with the flow guide hole, and one end of the flow guide groove is provided on the hole wall of the corresponding flow guide hole.

[0018] It is understandable that by setting up a flow guide groove and using the flow guide groove to guide the fluid medium to the flow guide hole, the fluid medium can flow to the flow guide hole more quickly after flowing out of the balance hole, thereby improving the flow efficiency of the fluid medium between the diaphragm assembly and the pilot seat.

[0019] In one embodiment, the pilot seat has a plurality of weight-reducing grooves, which are arranged at equal intervals along the circumferential direction of the pilot seat.

[0020] It is understandable that by opening multiple weight-reducing grooves at equal intervals along the circumference on the pilot seat, the weight of the pilot seat itself can be reduced. On the one hand, this can reduce production costs, and on the other hand, it can reduce the overall weight of the solenoid valve with pressure-reducing function by reducing the weight of the pilot seat, thereby making the solenoid valve with pressure-reducing function lighter.

[0021] In one embodiment, the solenoid valve with pressure reduction function further includes a compression spring, which is pre-compressed between the diaphragm assembly and the pilot seat to provide the diaphragm assembly with an elastic force to seal the valve port.

[0022] In one embodiment, a pin is formed on the compression spring, the pin being disposed through the balance hole and having a clearance fit with the hole wall of the balance hole.

[0023] It is understandable that by setting the pin on the compression spring to fit with the balance hole, the compression spring is positioned for installation, making the installation easier. On the other hand, the pin inserted into the balance hole can prevent large particles in the fluid medium from clogging the balance hole, thereby maintaining the unobstructed flow of the balance hole.

[0024] In one embodiment, the pressure reducing module includes a pressure reducing body and a pressure regulating component. The pressure reducing body is mounted on the valve body, and the fluid medium connected by the liquid outlet channel can pass through the pressure reducing body to discharge, so that the fluid medium flowing through the pressure reducing body flows out at a preset pressure P.

[0025] The pressure regulating component is connected to the pressure reducing body in a transmission manner, and is used to provide a force to the pressure reducing body to change the value of the preset pressure P.

[0026] In one embodiment, the pressure regulating assembly includes a pressure regulating cover and an elastic element. One end of the elastic element is connected to the pressure regulating cover, and the other end is connected to the pressure reducing body. The distance between the pressure regulating cover and the pressure reducing body can be adjusted to change the elastic force of the elastic element on the pressure reducing body and change the value of the preset pressure P.

[0027] It is understandable that by setting up a pressure regulating cover and an elastic element, adjusting the distance between the pressure regulating cover and the pressure reducing body changes the elastic force of the elastic element on the pressure reducing body, thereby changing the preset pressure P value. This allows operators to easily adjust the fluid pressure, enabling the solenoid valve with pressure reducing function to meet the fluid pressure requirements of different application scenarios.

[0028] In one embodiment, the pressure regulating cover is threadedly connected to the valve body and can rotate relative to the valve body. When the pressure regulating cover rotates, the distance between it and the pressure reducing body can be adjusted by the thread.

[0029] It is understandable that by connecting the pressure regulating cover to the valve body via a threaded connection, the distance between the pressure regulating cover and the pressure reducing body can be precisely adjusted by using the threaded adjustment when the pressure regulating cover rotates, thereby controlling the compression of the elastic element and thus improving the accuracy of pressure regulation.

[0030] In one embodiment, the valve body is configured as a one-piece structure.

[0031] Compared to existing technologies, the solenoid valve with pressure-reducing function integrates the pressure-reducing function into the solenoid valve itself by incorporating a pressure-reducing module. In practical applications, this allows for the simultaneous control of fluid medium flow and pressure regulation of the fluid medium passing through the solenoid valve using a single solenoid valve. This not only reduces installation costs but also minimizes the space required for fluid medium control applications, as it eliminates the need for two separate valves and connecting pipelines. Furthermore, the pilot seat design makes the solenoid valve suitable for high-pressure, high-flow-rate applications, while also shortening the opening and closing response time. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the solenoid valve with pressure reducing function provided in this application.

[0034] Figure 2 This is a top view of the solenoid valve with pressure reduction function provided in this application.

[0035] Figure 3 For this application Figure 2 Sectional view at FF.

[0036] Figure 4 A side view of the solenoid valve with pressure reducing function provided in this application.

[0037] Figure 5 For this application Figure 4 Cross-sectional view at point MM.

[0038] Figure 6 An exploded view of the solenoid valve with pressure reducing function provided in this application.

[0039] Figure 7 A schematic diagram of the pilot seat provided in this application.

[0040] The component labels are as follows:

[0041] 100. Solenoid valve with pressure reducing function; 10. Valve body; 11. Liquid inlet channel; 111. Liquid inlet port; 12. Valve port; 13. Liquid outlet channel; 14. Notch; 20. Diaphragm assembly; 21. Pressure plate; 22. Diaphragm; 23. Compression spring; 231. Pin; 24. Balance hole; 30. Pilot seat; 31. Pilot hole; 32. Connection channel; 321. Inlet; 322. Outlet; 33. Guide hole; 34. Guide groove; 35. Weight reduction groove; 40. Iron core assembly; 41. Movable iron core; 42. Fixed iron core; 43. Coil; 50. Pressure reducing module; 51. Pressure reducing body; 511. Push rod; 512. Pressure reducing diaphragm; 513. Pressure reducing gap; 514. Through hole; 52. Pressure regulating assembly; 521. Pressure regulating cover; 522. Elastic element. Detailed Implementation

[0042] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0043] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0044] 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the liquid level of the first feature is higher than that of the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the liquid level of the first feature is lower than that of the second feature.

[0046] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0047] Please see Figures 1 to 7 This application provides a solenoid valve 100 with pressure reducing function. The solenoid valve 100 with pressure reducing function is used for the control of fluid medium and has the functions of controlling the on and off of fluid medium and reducing the pressure of fluid medium passing through the solenoid valve 100 with pressure reducing function.

[0048] Specifically, the solenoid valve 100 with pressure reduction function includes a valve body 10, a diaphragm assembly 20, a pilot seat 30, an iron core assembly 40, and a pressure reduction module 50. The valve body 10 is provided with an inlet channel 11, a valve port 12, and an outlet channel 13, which are connected through the valve port 12. The diaphragm assembly 20 is mounted on the valve body 10 and is used to control the opening / closing of the valve port 12. The diaphragm assembly 20 is provided with a balance hole 24. The pilot seat 30 is mounted on the valve body 10. On the valve body 10, a pilot hole 31 is provided on the pilot seat 30. The pilot hole 31 is connected to the liquid inlet channel 11 through the balance hole 24, and the pilot hole 31 is also connected to the liquid outlet channel 13. The iron core assembly 40 includes a movable iron core 41, which can reciprocate relative to the pilot seat 30 to control the opening / closing of the pilot hole 31. The pressure reducing module 50 is located on the valve body 10 at the position of the liquid outlet channel 13 and is used to reduce the pressure of the fluid medium passing through the liquid outlet channel 13.

[0049] As can be seen from the above, this application integrates the pressure-reducing function into a solenoid valve 100 with a pressure-reducing module 50. In actual use, this allows the solenoid valve 100 to control the flow of fluid and to regulate the pressure of the fluid passing through it. Therefore, it not only reduces installation costs, but also reduces the space occupied by the solenoid valve 100 when used for fluid control because it eliminates the need for two valves and connecting pipelines.

[0050] like Figure 1 As shown, the valve body 10 is configured as a single unit.

[0051] In one embodiment, the valve body 10 is provided with an inlet 111, through which the fluid medium flows to the inlet channel 11. The valve body 10 can be connected to the inlet 111 using a quick-connect fitting, making the installation and removal of the inlet pipeline of the solenoid valve 100 with pressure reducing function more convenient and efficient. The fitting can be quickly inserted and removed without the need for complex tools, effectively improving the operational flexibility of the system. Here, quick-connect fittings adapted to 1 / 4-inch or 3 / 8-inch pipelines can be used.

[0052] like Figure 3 As shown, the diaphragm assembly 20 includes a pressure plate 21 and a diaphragm 22. The pressure plate 21 is disposed at the valve port 12 to seal the valve port 12. The diaphragm 22 is sleeved on the pressure plate 21 and circumferentially limited on the valve body 10, so that the pressure plate 21 can reciprocate relative to the valve port 12 to control the opening and closing of the valve port 12.

[0053] like Figure 6 As shown, in one embodiment, the solenoid valve 100 with pressure reduction function further includes a compression spring 23, which is disposed between the diaphragm assembly 20 and the pilot seat 30 in a pre-compressed manner to provide the diaphragm assembly 20 with an elastic force to block the valve port 12.

[0054] Furthermore, a pin 231 is formed on the compression spring 23, which passes through the balance hole 24 and is fitted with the hole wall of the balance hole 24 with a clearance. By setting the pin 231 on the compression spring 23 to fit with the balance hole 24 with a clearance, on the one hand, the compression spring 23 is positioned for installation, which facilitates the installation of the compression spring 23; on the other hand, the insertion of the pin 231 into the balance hole 24 can prevent large particles in the fluid medium from clogging the balance hole 24, thereby maintaining the unobstructed flow of the balance hole 24.

[0055] like Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, the pilot seat 30 is assembled onto the valve body 10 via a plug-in connection and is sealed to the valve body 10. The pilot seat 30 has a connecting channel 32, the inlet 321 of which communicates with the pilot hole 31, and the outlet 322 of which is located on the outer peripheral wall of the pilot seat 30. The valve body 10 has a notch 14, which communicates with both the outlet 322 and the liquid outlet channel 13. It should be explained that the structure of the pilot seat 30 allows the solenoid valve 100 with pressure reduction function to completely rely on the pilot pressure difference to drive the diaphragm assembly 20. This allows the solenoid valve 100 with pressure reduction function to not only be suitable for high-pressure, high-flow scenarios but also shorten the reaction time when opening or closing.

[0056] In one embodiment, the pilot seat 30 is provided with a flow guide hole 33, and the balance hole 24 can communicate with the pilot hole 31 through the flow guide hole 33; furthermore, a flow guide groove 34 is provided on the end face of the pilot seat 30 facing the diaphragm assembly 20, the flow guide groove 34 is correspondingly provided with the flow guide hole 33, and one end of the flow guide groove 34 is provided on the hole wall of the corresponding flow guide hole 33. In this way, by providing the flow guide groove 34 and using the flow guide groove 34 to guide the fluid medium to flow into the flow guide hole 33, the fluid medium can flow into the flow guide hole 33 more quickly after flowing out of the balance hole 24, thereby improving the flow efficiency of the fluid medium between the diaphragm assembly 20 and the pilot seat 30.

[0057] Here, the number of guide holes 33 can be set to three, four, five, six, seven, etc., and the number of guide grooves 34 is set to correspond one-to-one with the number of guide holes 33.

[0058] Furthermore, the pilot seat 30 is provided with multiple weight-reducing grooves 35, which are arranged at equal intervals along the circumferential direction of the pilot seat 30. By providing multiple weight-reducing grooves 35 arranged at equal intervals along the circumferential direction on the pilot seat 30, the weight of the pilot seat 30 itself can be reduced. This reduces production costs and also lightens the overall weight of the solenoid valve 100 with pressure-reducing function, making the solenoid valve 100 with pressure-reducing function lighter. Here, the number of weight-reducing grooves 35 can be set to two, three, four, five, six, etc.

[0059] like Figure 3 As shown, the core assembly 40 also includes structures such as a fixed core 42 and a coil 43. Since the structure of the core assembly 40 is common in the prior art, it will not be described in detail in this application.

[0060] like Figure 3 and Figure 6As shown, the pressure reducing module 50 includes a pressure reducing body 51 and a pressure regulating component 52. The pressure reducing body 51 is mounted on the valve body 10, and the fluid medium connected by the outlet channel 13 can pass through the pressure reducing body 51 for discharge, so that the fluid medium flowing through the pressure reducing body 51 flows out at a preset pressure P. The pressure regulating component 52 is drivenly connected to the pressure reducing body 51 and is used to provide a force to the pressure reducing body 51 to change the value of the preset pressure P. For example, the value of P can be 0.03MPa, 0.1MPa, 0.2MPa, 0.4MPa, etc. The selection of P can be flexibly chosen according to different application scenarios. The solenoid valve 100 with pressure reducing function in this application can be used in many fields such as smart toilets, water purifiers, and robot vacuum cleaners.

[0061] In one embodiment, the pressure reducing body 51 includes a push rod 511 and a pressure reducing diaphragm 512. The push rod 511 and the valve body 10 form a pressure reducing gap 513. A through hole 514 is opened inside the push rod 511. Part of the fluid medium entering the pressure reducing body 51 flows out of the pressure reducing body 51 through the pressure reducing gap 513, and another part flows through the through hole 514 to the end away from the pressure regulating component 52, pushing the push rod 511 against the pressure regulating component 52, thereby reducing the pressure reducing gap 513, thus having the function of reducing the pressure of the fluid medium entering the pressure reducing body 51.

[0062] Furthermore, the pressure regulating assembly 52 includes a pressure regulating cover 521 and an elastic element 522. One end of the elastic element 522 is connected to the pressure regulating cover 521, and the other end is connected to the pressure reducing diaphragm 512 in the pressure reducing body 51. The distance between the pressure regulating cover 521 and the pressure reducing body 51 can be adjusted to change the elastic force of the elastic element 522 on the pressure reducing body 51, thereby changing the value of the preset pressure P. By setting the pressure regulating cover 521 and the elastic element 522, adjusting the distance between the pressure regulating cover 521 and the pressure reducing body 51 changes the elastic force of the elastic element 522 on the pressure reducing body 51, thus changing the value of the preset pressure P. This allows operators to easily adjust the fluid pressure, enabling the solenoid valve 100 with pressure reducing function to meet the fluid pressure requirements of different application scenarios.

[0063] Preferably, the elastic element 522 can be configured as a spring.

[0064] In one embodiment, the pressure regulating cover 521 is threadedly connected to the valve body 10 and can rotate relative to the valve body 10. When the pressure regulating cover 521 rotates, the distance between it and the pressure reducing body 51 can be adjusted using the thread. By making the pressure regulating cover 521 threadedly connected to the valve body 10, the distance between the pressure regulating cover 521 and the pressure reducing body 51 can be precisely adjusted using the thread when the pressure regulating cover 521 rotates, thereby controlling the amount of spring compression and thus improving the pressure regulation accuracy.

[0065] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A solenoid valve with pressure reducing function, characterized in that, The solenoid valve (100) with pressure reducing function includes: The valve body (10) is provided with an inlet channel (11), a valve port (12) and an outlet channel (13), and the inlet channel (11) and the outlet channel (13) are connected through the valve port (12); A diaphragm assembly (20) is installed on the valve body (10) and is used to control the opening / closing of the valve port (12). A balance hole (24) is provided on the diaphragm assembly (20). A pilot seat (30) is installed on the valve body (10). A pilot hole (31) is provided on the pilot seat (30). The pilot hole (31) is connected to the liquid inlet channel (11) through the balance hole (24). The pilot hole (31) is also connected to the liquid outlet channel (13). The core assembly (40) includes a movable core (41) which is capable of reciprocating relative to the pilot seat (30) to control the opening / closing of the pilot hole (31); The pressure reducing module (50) is located on the valve body (10) at the position of the liquid outlet channel (13) and is used to reduce the pressure of the fluid medium passing through the liquid outlet channel (13).

2. The solenoid valve with pressure reducing function according to claim 1, characterized in that, The pilot seat (30) is assembled onto the valve body (10) by a plug-in fit and is connected and sealed to the valve body (10); The pilot seat (30) is provided with a connecting channel (32), the inlet (321) of the connecting channel (32) is connected to the pilot hole (31), and the outlet (322) of the connecting channel (32) is provided on the outer peripheral wall of the pilot seat (30). The valve body (10) has a notch (14) which is connected to the outlet (322) and the liquid outlet channel (13).

3. The solenoid valve with pressure reducing function according to claim 1, characterized in that, The pilot seat (30) is provided with a flow guide hole (33), and the balance hole (24) can communicate with the pilot hole (31) through the flow guide hole (33); Furthermore, a flow guide groove (34) is provided on one end face of the pilot seat (30) facing the diaphragm assembly (20). The flow guide groove (34) is correspondingly provided with the flow guide hole (33), and one end of the flow guide groove (34) is provided on the hole wall of the corresponding flow guide hole (33).

4. The solenoid valve with pressure reducing function according to claim 1, characterized in that, The pilot seat (30) is provided with a plurality of weight-reducing grooves (35), and the plurality of weight-reducing grooves (35) are arranged at equal intervals along the circumferential direction of the pilot seat (30).

5. The solenoid valve with pressure reducing function according to claim 1, characterized in that, The solenoid valve (100) with pressure reduction function also includes a compression spring (23), which is pre-compressed between the diaphragm assembly (20) and the pilot seat (30) to provide the diaphragm assembly (20) with an elastic force to block the valve port (12).

6. The solenoid valve with pressure reducing function according to claim 5, characterized in that, A pin (231) is formed on the compression spring (23), the pin (231) is disposed through the balance hole (24) and is fitted with the hole wall of the balance hole (24) with clearance.

7. The solenoid valve with pressure reducing function according to claim 1, characterized in that, The pressure reducing module (50) includes a pressure reducing body (51) and a pressure regulating component (52). The pressure reducing body (51) is installed on the valve body (10), and the fluid medium connected by the liquid outlet channel (13) can pass through the pressure reducing body (51) to discharge outward, so that the fluid medium flowing through the pressure reducing body (51) flows out at a preset pressure P. The pressure regulating component (52) is connected to the pressure reducing body (51) and is used to provide a force to the pressure reducing body (51) to change the value of the preset pressure P.

8. The solenoid valve with pressure reducing function according to claim 7, characterized in that, The pressure regulating component (52) includes a pressure regulating cover (521) and an elastic element (522). One end of the elastic element (522) is connected to the pressure regulating cover (521), and the other end is connected to the pressure reducing body (51). The distance between the pressure regulating cover (521) and the pressure reducing body (51) can be adjusted to change the elastic force of the elastic element (522) on the pressure reducing body (51) and change the value of the preset pressure P.

9. The solenoid valve with pressure reducing function according to claim 8, characterized in that, The pressure regulating cover (521) is threadedly connected to the valve body (10) and can rotate relative to the valve body (10). When the pressure regulating cover (521) rotates, the distance between it and the pressure reducing body (51) can be adjusted by using the thread.

10. The solenoid valve with pressure reducing function according to claim 1, characterized in that, The valve body (10) is configured as an integral structure.

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