A fluid regulating solenoid valve

Abstract

The present invention relates to the field of electromagnetic valve technology, and in particular to a fluid regulating electromagnetic valve, comprising a valve body, a slide plate, a mounting column, a sliding ring and a first sealing ring, wherein a valve seat is arranged in the valve body, a through hole is arranged on the valve seat, and the end face of the through hole is arranged as a first sealing face; the slide plate is slidably arranged in the valve body, the mounting column is fixedly installed on a side of the slide plate close to the first sealing face, the sliding ring is slidably arranged on the circumferential surface of the mounting column along a first direction, and the sliding ring can abut against the first sealing face; the two ends of the first sealing ring in the axial direction are respectively a large end and a small end, the small end of the first sealing ring is arranged on a side of the sliding ring close to the first sealing face, and the first sealing ring can be slidably connected with the first sealing face. Through the cooperation of the first sealing ring and the first sealing face, when the sliding ring approaches the first sealing face, the large end of the first sealing ring can expand in its own radial direction, scrape off the impurities attached to the first sealing face, and improve the sealing effect of the first sealing ring and the first sealing face.

Description

Technical Field

[0001] The present invention relates to the technical field of solenoid valves, and in particular to a fluid regulating solenoid valve. Background Art

[0002] As an electromagnetically controlled industrial equipment, the solenoid valve is an automated actuator for controlling fluids, with a wide range of applications and diverse functions. Solenoid valves are divided into normally open and normally closed types in terms of control. Normally open solenoid valves are closed when powered on and open when powered off. They are usually used in situations where a medium needs to be supplied stably for a long time. However, after the medium has passed through the solenoid valve for a long time, some impurities in the medium will adhere to the sealing surface inside the solenoid valve, causing the solenoid valve to not seal tightly when closed. In order to improve the sealing effect of the solenoid valve, the magnetic force of the solenoid valve is usually increased. The valve core will increase the impact force with the sealing surface under the strong magnetic force of the electromagnet, which is easy to cause wear of the sealing surface. Summary of the invention

[0003] Based on this, it is necessary to provide a fluid regulating solenoid valve to address the problem of poor sealing effect of current solenoid valves.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A fluid regulating solenoid valve comprises a valve body and a valve core, wherein a valve seat, a water inlet and a water outlet are arranged in the valve body, a through hole is arranged on the valve seat, the through hole is used to connect the water inlet and the water outlet, an end face of the through hole is set as a first sealing surface, and an inner wall of the through hole is set as a second sealing surface; the valve core comprises a slide plate, a mounting column, a sliding ring, a first sealing ring and a second sealing ring, the slide plate is slidably arranged in the valve body, and the slide plate can approach the through hole when sliding in the valve body, and a sliding direction of the slide plate is set as a first direction, and the first direction is parallel to the second sealing surface; the mounting column is fixedly installed on a side of the slide plate close to the first sealing surface, the axis of the mounting column extends along the first direction, and the mounting column is installed. The mounting column can slide in the through hole, the sliding ring is slidably arranged on the circumferential surface of the mounting column along the first direction, and the sliding ring can abut against the first sealing surface; the axes of the first sealing ring and the second sealing ring both extend along the first direction, the two ends of the first sealing ring in the axial direction are respectively a large end and a small end, the small end of the first sealing ring is arranged on a surface of the sliding ring close to the first sealing surface, and the first sealing ring can be slidably connected to the first sealing surface; the diameter of the second sealing ring is smaller than the diameter of the small end of the first sealing ring, one end of the second sealing ring is fixedly installed on a surface of the sliding ring and the mounting column close to the valve seat, and the second sealing ring can contact the second sealing surface.

[0006] Preferably, the first sealing surface is perpendicular to the second sealing surface, and the first sealing surface is perpendicular to the first direction.

[0007] Preferably, a first cavity is provided in the valve body, the first cavity is always connected to the water outlet, and the slide plate is slidably disposed in the first cavity.

[0008] Preferably, a sliding groove is provided on the circumferential surface of the mounting column, a sliding block is provided on one side of the sliding ring slidably connected to the mounting column, the sliding block is slidably arranged in the sliding groove along a first direction, and the sliding groove is not connected to the first cavity.

[0009] Preferably, a plurality of elastic sheets are provided in the first sealing ring, the plurality of elastic sheets are all fixedly connected to the sliding ring, and the plurality of elastic sheets are evenly distributed around the axis of the first sealing ring.

[0010] Preferably, a spacing is provided between the first sealing ring and the second sealing ring in the radial direction of the second sealing ring, and when the first sealing ring contacts the first contact surface and the second sealing ring contacts the second contact surface, the cavity formed by the first sealing ring, the second sealing ring and the valve seat is a closed second cavity, and the force causing the second sealing ring to deform is smaller than the force causing the elastic sheet to deform.

[0011] Preferably, an end cover is provided on the valve body, the end cover is threadedly connected to the valve body, and the end cover can abut against the slide plate.

[0012] Preferably, a sleeve is fixedly mounted on the end cover, the sleeve extends along a first direction, and an electromagnetic mechanism is sleeved on the sleeve; the valve core also includes a sliding rod and an iron core, one end of the sliding rod is fixedly mounted on an end of the slide away from the valve seat, the other end of the sliding rod passes through the valve body and the end cover, and the sliding rod is respectively slidably connected to the electromagnetic mechanism and the valve body, the iron core is fixedly mounted on an end of the sliding rod away from the slide, and the part of the sliding rod extending out of the end cover and the iron core are respectively slidably arranged in the sleeve.

[0013] Preferably, a sealing ring is provided between the end cover and the valve body.

[0014] Preferably, a spring is provided in the valve body, the spring is located on a side of the slide away from the valve seat, and two ends of the spring are respectively connected to the slide and the valve body.

[0015] The beneficial effects of the present invention are as follows: through the cooperation of the first sealing ring and the first sealing surface, the second sealing ring and the second sealing surface, two seals are provided at the through hole, thereby improving the sealing effect; through the contact cooperation of the large end of the first sealing ring and the first sealing surface, when the sliding ring approaches the first sealing surface, the large end of the first sealing ring can expand along its own radial direction, and the large end of the first sealing ring slides on the first sealing surface, which can scrape off impurities attached to the first sealing surface, thereby improving the sealing effect of the first sealing ring and the first sealing surface; through the cooperation of the sliding ring and the mounting column, after the sliding ring abuts against the first sealing surface, the sliding ring and the mounting column move relative to each other, and the second sealing ring expands outward along its own radial direction after being subjected to torsion, and fits more closely with the second sealing surface, thereby improving the sealing effect of the second sealing ring and the second sealing surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1A schematic diagram of the structure of a fluid regulating solenoid valve provided by an embodiment of the present invention;

[0017] Figure 2 A left side view of a fluid regulating solenoid valve provided by an embodiment of the present invention;

[0018] Figure 3 for Figure 2 Sectional view along AA direction;

[0019] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0020] Figure 5 A state diagram of a fluid regulating solenoid valve with a valve body closed provided by an embodiment of the present invention;

[0021] Figure 6 for Figure 5 Enlarged view of point C in the middle.

[0022] Wherein: 100, valve body; 101, valve seat; 102, water inlet; 103, water outlet; 104, first sealing surface; 105, second sealing surface; 106, slide plate; 107, mounting column; 108, sliding ring; 109, first sealing ring; 110, second sealing ring; 111, first cavity; 112, slide groove; 113, slider; 114, elastic sheet; 115, second cavity; 116, end cover; 117, sleeve; 118, sliding rod; 119, iron core; 120, sealing ring; 121, spring; 122, electromagnetic mechanism. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] like Figures 1 to 6 As shown, a fluid regulating solenoid valve provided by an embodiment of the present invention comprises a valve body 100 and a valve core, wherein a valve seat 101, a water inlet 102 and a water outlet 103 are arranged in the valve body 100, a through hole is arranged on the valve seat 101, and the through hole is used to connect the water inlet 102 and the water outlet 103, and the end face of the through hole is assumed to be a first sealing surface 104, and the inner wall of the through hole is assumed to be a second sealing surface 105; the valve core comprises a slide plate 106, a mounting column 107, a sliding ring 108, a first sealing ring 109 and a second sealing ring 110, the slide plate 106 is slidably arranged in the valve body 100, and the slide plate 106 can approach the through hole when sliding in the valve body 100, and the sliding direction of the slide plate 106 is assumed to be a first direction, and the first direction is parallel to the second sealing surface 105; the mounting column 107 is fixedly installed on a side of the slide plate 106 close to the first sealing surface 104, and the axis of the mounting column 107 extends along the first direction, and the mounting column 10 7 can slide in the through hole, the sliding ring 108 is slidably arranged on the circumference of the mounting column 107 along the first direction, and the sliding ring 108 can abut against the first sealing surface 104; the axes of the first sealing ring 109 and the second sealing ring 110 both extend along the first direction, and the first sealing ring 109 and the second sealing ring 110 have a certain thickness in the first direction, the two ends of the first sealing ring 109 in the axial direction are respectively a large end and a small end, the small end of the first sealing ring 109 is arranged on a surface of the sliding ring 108 close to the first sealing surface 104, and the first sealing ring 109 can be slidably connected with the first sealing surface 104; the diameter of the second sealing ring 110 is smaller than the diameter of the small end of the first sealing ring 109, one end of the second sealing ring 110 is fixedly installed on the sliding ring 108 and a surface of the mounting column 107 close to the valve seat 101, and the second sealing ring 110 can contact the second sealing surface 105.

[0027] Through the cooperation of the first sealing ring 109 and the first sealing surface 104, the second sealing ring 110 and the second sealing surface 105, two seals are provided at the through hole, thereby improving the sealing effect; through the contact cooperation between the large end of the first sealing ring 109 and the first sealing surface 104, when the sliding ring 108 approaches the first sealing surface 104, the large end of the first sealing ring 109 can expand in its own radial direction, and the large end of the first sealing ring 109 slides on the first sealing surface 104, which can scrape off the impurities attached to the first sealing surface 104, thereby improving the sealing effect of the first sealing ring 109 and the first sealing surface 104; through the cooperation of the sliding ring 108 and the mounting column 107, after the sliding ring 108 abuts against the first sealing surface 104, the sliding ring 108 and the mounting column 107 move relative to each other, and the second sealing ring 110 expands outward in its own radial direction after being subjected to torsion, and fits more closely with the second sealing surface 105, thereby improving the sealing effect of the second sealing ring 110 and the second sealing surface 105.

[0028] In this embodiment, the first sealing surface 104 and the second sealing surface 105 are perpendicular, and the first sealing surface 104 is perpendicular to the first direction. When the sliding ring 108 abuts against the first sealing surface 104, the first sealing ring 109 is located between the sliding ring 108 and the first sealing surface 104. The first sealing ring 109 is subjected to the positive extrusion pressure of the sliding ring 108 and the first sealing surface 104, and the sealing effect between the first sealing ring 109 and the first sealing surface 104 is better.

[0029] In this embodiment, a first cavity 111 is provided in the valve body 100, and the first cavity 111 is always connected to the water outlet 103. The slide plate 106 is slidably disposed in the first cavity 111. When the valve body 100 is closed, the second sealing ring 110 is in the valve seat 101. The pressure in the first cavity 111 is lower than the pressure in the valve seat 101. The fitting pressure between the second sealing ring 110 and the second sealing surface 105 is increased, which is conducive to ensuring sealing.

[0030] In this embodiment, a slide groove 112 is provided on the circumferential surface of the mounting column 107, and a slider 113 is provided on one side of the sliding ring 108 that is slidably connected to the mounting column 107. The slider 113 is slidably arranged in the slide groove 112 along a first direction, and the slide groove 112 is not connected to the first cavity 111. When the sliding ring 108 slides on the mounting column 107, the liquid in the first cavity 111 will not enter the slide groove 112, and no impurities will be stored in the slide groove 112, thereby ensuring smooth sliding of the sliding ring 108.

[0031] In this embodiment, a plurality of elastic sheets 114 are provided in the first sealing ring 109, and the plurality of elastic sheets 114 are fixedly connected to the sliding ring 108, and the plurality of elastic sheets 114 are evenly distributed around the axis of the first sealing ring 109. After the first sealing ring 109 contacts and expands with the valve seat 101, the first sealing ring 109 can drive the elastic sheets 114 to deform, and the side of the elastic sheet 114 away from the sliding ring 108 approaches the sliding ring 108. The elastic sheet 114 increases the contact pressure between the first sealing ring 109 and the valve seat 101, so that when the first sealing ring 109 slides on the valve seat 101, the impurities attached to the surface of the valve seat 101 can be better cleaned, thereby improving the sealing effect between the first sealing ring 109 and the valve seat 101.

[0032] In this embodiment, the first sealing ring 109 and the second sealing ring 110 are spaced apart in the radial direction of the second sealing ring 110, and when the first sealing ring 109 contacts the first contact surface and the second sealing ring 110 contacts the second contact surface, the cavity formed by the first sealing ring 109, the second sealing ring 110 and the valve seat 101 is a closed second cavity 115, and the second cavity 115 is a closed cavity (such as Figure 6 As shown); the force of the second sealing ring 110 to deform is less than the force of the elastic sheet 114 to deform. Before the first sealing ring 109 drives the elastic sheet 114 to deform, the sliding ring 108 stops following the movement of the mounting post 107 after receiving resistance from the valve seat 101 through the elastic sheet 114. The mounting post 107 and the sliding ring 108 close to the second sealing ring 110 are misaligned. After the second sealing ring 110 is subjected to torsion, it expands outward in its radial direction and contacts the valve seat 101, thereby forming a seal with the valve seat 101. When the first sealing ring 109 contacts the first sealing surface 104, the first sealing ring 109 does not deform. At this time, the end of the second sealing ring 110 away from the mounting post 107 has slid into the through hole, and the sliding ring 108 and the mounting post 107 move relative to each other. The sliding ring 108 and the mounting column 107 pull the second sealing ring 110 to expand outward along the radial direction of the second sealing ring 110 itself, and the second sealing ring 110 contacts the second sealing surface 105, and then the second cavity 115 is formed. After the sliding ring 108 slides to the extreme position relative to the mounting column 107, the sliding ring 108 pushes the first sealing ring 109 to slide on the first sealing surface 104, and the volume of the second cavity 115 decreases. Since the second sealing ring 110 is located on one side of the water inlet 102, the liquid in the second cavity 115 flows to the water outlet 103. While the first sealing ring 109 cleans the first sealing surface 104, the liquid in the second cavity 115 flushes the first sealing surface 104, thereby improving the sealing effect between the first sealing surface 104 and the first sealing ring 109.

[0033] In this embodiment, an end cover 116 is provided on the valve body 100 , and the end cover 116 is threadedly connected to the valve body 100 , and the end cover 116 can abut against the slide plate 106 , and the end cover 116 can be removed relative to the valve body 100 , which is convenient for the installation and maintenance of the valve core.

[0034] In this embodiment, a sleeve 117 is fixedly mounted on the end cover 116, and the sleeve 117 extends along the first direction. The sleeve 117 is sleeved with an electromagnetic mechanism 122; the valve core also includes a slide rod 118 and an iron core 119, one end of the slide rod 118 is fixedly mounted on the end of the slide plate 106 away from the valve seat 101, and the other end of the slide rod 118 passes through the valve body 100 and the end cover 116, and the slide rod 118 is slidably connected to the electromagnetic mechanism 122 and the valve body 100 respectively, and the iron core 119 is fixedly mounted on the slide rod 118 away from the slide plate 106. At one end of the plate 106, the portion of the slide rod 118 extending out of the end cover 116 and the iron core 119 are respectively slidably arranged in the sleeve 117, and when the electromagnetic mechanism 122 is not energized, the iron core 119 is located on the side of the electromagnetic mechanism 122 away from the slide plate 106. When the electromagnetic mechanism 122 is energized, the electromagnetic mechanism 122 generates a magnetic attraction to the iron core 119, and the iron core 119 pushes the slide plate 106 toward the valve seat 101 through the slide rod 118, so that the first sealing ring 109 and the second sealing ring 110 can close the through hole.

[0035] In this embodiment, a sealing ring 120 is provided between the end cover 116 and the valve body 100 . The sealing ring 120 can improve the firmness of the end cover 116 installed on the valve body 100 , and can also increase the sealing of the connection.

[0036] In this embodiment, a spring 121 is provided in the valve body 100. The spring 121 is located on the side of the slide 106 away from the valve seat 101, and the two ends of the spring 121 are respectively connected to the slide 106 and the valve body 100. After the electromagnetic mechanism 122 is energized, the slide 106 will pull the spring 121 to extend. After the electromagnetic mechanism 122 is de-energized, the slide 106 will move in the direction away from the valve seat 101 under the tension of the spring 121 and the thrust of the liquid in the valve seat 101, and the spring 121 will reset.

[0037] The working principle and working method of a fluid regulating solenoid valve provided in this embodiment are as follows:

[0038] When the electromagnetic mechanism 122 is not energized, the water inlet 102 and the water outlet 103 are in a connected state. First, the valve body 100 is installed to a specified position, and then the liquid can enter the valve seat 101 from the water inlet 102, and then enter the first cavity 111 through the through hole, and then flow from the first cavity 111 to the water outlet 103.

[0039] When the electromagnetic mechanism 122 is energized, the electromagnetic mechanism 122 generates magnetism, and the magnetic force attracts the iron core 119 to move in the sleeve 117 along the first direction toward the electromagnetic mechanism 122, and the iron core 119 drives the slide bar 118 to slide, and the slide bar 118 pushes the slide plate 106 to move, and the slide plate 106 drives the installation column 107 to move, and the installation column 107 brings the sliding ring 108 together to move toward the valve seat 101, and at the same time, the first sealing ring 109 moves toward the first sealing surface 104, and the second sealing ring 11 0 approaches the second sealing surface 105. When the first sealing ring 109 contacts the first sealing surface 104, the second sealing ring 110 has already extended into the through hole. Then the mounting post 107 continues to move. At this time, the sliding ring 108 does not continue to move due to the resistance from the first sealing ring 109. The mounting post 107 and the sliding ring 108 move relative to each other. The slider 113 on the sliding ring 108 slides in the sliding groove 112 on the mounting post 107. The sliding ring 108 and the mounting post 107 contact each other. The second sealing ring 110 generates a torsion force, so that the end of the second sealing ring 110 away from the mounting column 107 expands outwardly in the radial direction of the mounting column 107, the second sealing ring 110 contacts the second sealing surface 105, and the second cavity 115 is formed; as the sliding distance of the slider 113 in the slide groove 112 increases, the second sealing ring 110 and the second sealing surface 105 fit more and more closely, until the slider 113 cannot slide in the slide groove 112; then the mounting column 107 will drive the sliding ring 108 to move together, the elastic sheet 114 and the first sealing ring 109 are deformed by pressure, the first sealing ring 109 slides on the first sealing surface 104, and the impurities attached to the first sealing surface 104 are scraped off. At the same time, due to the close fit between the second sealing ring 110 and the second sealing surface 105, the volume of the second cavity 115 is reduced, and the liquid in the second cavity 115 is discharged into the first cavity 111 through the connection between the first sealing ring 109 and the first sealing surface 104.

[0040] The mounting post 107 continues to move until the first sealing ring 109 is completely in contact with the first sealing surface 104 , thus completing the closure of the valve body 100 .

[0041] When the electromagnetic mechanism 122 is powered off, the electromagnetic mechanism 122 will no longer generate suction on the iron core 119, and the slide plate 106 moves away from the valve seat 101 under the pulling force of the spring 121. The slide plate 106 drives the second sealing ring 110 and the first sealing ring 109 away from the valve seat 101 through the mounting column 107 and the sliding ring 108 respectively, and then the water inlet 102 and the water outlet 103 are connected.

[0042] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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.

[0043] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A fluid regulating solenoid valve, characterized in that: include: A valve body (100) and a valve core, wherein a valve seat (101), a water inlet (102) and a water outlet (103) are provided in the valve body (100); a through hole is provided on the valve seat (101), and the through hole is used to connect the water inlet (102) and the water outlet (103); an end surface of the through hole is a first sealing surface (104), and an inner wall of the through hole is a second sealing surface (105); the valve core comprises a slide plate (106), a mounting column (107), a sliding ring (108), a first sealing ring ( The slide plate (106) is slidably disposed in the valve body (100), and the slide plate (106) can approach the through hole when sliding in the valve body (100). The sliding direction of the slide plate (106) is assumed to be a first direction, and the first direction is parallel to the second sealing surface (105); the mounting post (107) is fixedly mounted on a side of the slide plate (106) close to the first sealing surface (104), and the axis of the mounting post (107) extends along the first direction. The first sealing ring (109) and the second sealing ring (110) are both provided with axes extending in the first direction, and the two axial ends of the first sealing ring (109) are respectively a large end and a small end, and the small end of the first sealing ring (109) is provided on a surface of the sliding ring (108) close to the first sealing surface (104), and the first sealing ring (109) is slidably connected to the first sealing surface (104); the diameter of the second sealing ring (110) is smaller than the diameter of the small end of the first sealing ring (109), one end of the second sealing ring (110) is fixedly installed on a surface of the sliding ring (108) and the mounting column (107) close to the valve seat (101), and the second sealing ring (110) is in contact with the second sealing surface (105); A spacing is provided between the first sealing ring (109) and the second sealing ring (110) in a radial direction of the second sealing ring (110); and when the first sealing ring (109) contacts the first contact surface and the second sealing ring (110) contacts the second contact surface, a cavity formed by the first sealing ring (109), the second sealing ring (110) and the valve seat (101) is a closed second cavity (115); A first cavity (111) is provided in the valve body (100), the first cavity (111) is always connected to the water outlet (103), the slide plate (106) is slidably arranged in the first cavity (111), a slide groove (112) is provided on the peripheral surface of the mounting column (107), a slide block (113) is provided on one side of the sliding ring (108) that is slidably connected to the mounting column (107), the slide block (113) is slidably arranged in the slide groove (112) along a first direction, and the slide groove (112) is not connected to the first cavity (111); A plurality of elastic sheets (114) are arranged in the first sealing ring (109), the plurality of elastic sheets (114) are fixedly connected to the sliding ring (108), and the plurality of elastic sheets (114) are evenly distributed around the axis of the first sealing ring (109), and the force causing the second sealing ring (110) to deform is smaller than the force causing the elastic sheets (114) to deform.

2. A fluid regulating solenoid valve according to claim 1, characterized in that: The first sealing surface (104) and the second sealing surface (105) are perpendicular, and the first sealing surface (104) is perpendicular to the first direction.

3. A fluid regulating solenoid valve according to claim 1, characterized in that: An end cover (116) is provided on the valve body (100); the end cover (116) is threadedly connected to the valve body (100), and the end cover (116) can abut against the slide plate (106).

4. A fluid regulating solenoid valve according to claim 3, characterized in that: A sleeve (117) is fixedly mounted on the end cover (116), the sleeve (117) extending in a first direction, and an electromagnetic mechanism (122) is sleeved on the sleeve (117); the valve core further comprises a slide rod (118) and an iron core (119), one end of the slide rod (118) is fixedly mounted on an end of the slide plate (106) away from the valve seat (101), the other end of the slide rod (118) passes through the valve body (100) and the end cover (116), and the slide rod (118) is slidably connected to the electromagnetic mechanism (122) and the valve body (100), respectively; the iron core (119) is fixedly mounted on an end of the slide rod (118) away from the slide plate (106), and the portion of the slide rod (118) extending out of the end cover (116) and the iron core (119) are slidably disposed in the sleeve (117), respectively.

5. A fluid regulating solenoid valve according to claim 3, characterized in that: A sealing ring (120) is provided between the end cover (116) and the valve body (100).

6. A fluid regulating solenoid valve according to claim 1, characterized in that: A spring (121) is arranged in the valve body (100). The spring (121) is located on a side of the slide plate (106) away from the valve seat (101), and two ends of the spring (121) are respectively connected to the slide plate (106) and the valve body (100).

Images