Low-water-attack electromagnetic valve

Abstract

The utility model provides a low-water-attack electromagnetic valve, which belongs to the technical field of electromagnetic valves and comprises a shell, a water inlet pipe and a water outlet pipe, a main valve is arranged on the water inlet pipe, an electromagnetic valve component is arranged on the water outlet pipe, and the electromagnetic valve component comprises a valve body part, a connecting seat, an electromagnetic coil, a water retaining disc, a sealing bowl and a spring. The valve body portion comprises a water inlet channel, a water outlet channel and a valve seat opening connecting the water inlet channel and the water outlet channel, the water retaining disc comprises a protruding column body facing the water outlet channel, the sealing bowl is connected with the water retaining disc, the outer edge of the sealing bowl abuts against the position between the valve body portion and the connecting seat, the spring abuts against the position between the connecting seat and the water retaining disc, and the sealing bowl and the valve seat opening form sealing under the action of the spring. The convex column body extends into the water outlet channel; the protruding column body can extend into the water outlet channel when the water retaining disc moves, the water passing amount of the valve seat opening can be rapidly reduced before water flow is completely cut off, the water hammer effect is effectively reduced, and the service life of the valve is prolonged.

Description

A low water hammer solenoid valve Technical Field

[0001] This utility model relates to the field of solenoid valve technology, specifically to a low water hammer solenoid valve. Background Technology

[0002] A solenoid valve is an automated device that uses electromagnetic control principles to switch fluids on and off, and is widely used for flow control of gases, liquids, and steam. Its main components include an electromagnetic coil and a valve body. When current flows through the coil, the generated electromagnetic force drives the valve core or valve plate to move, thereby opening or closing the fluid passage. Solenoid valves have advantages such as fast response, precise control, and ease of operation, and are widely used in machinery, automation equipment, hydraulic systems, and HVAC systems, effectively improving the automation level and work efficiency of systems.

[0003] The prior art patent with publication number CN222185875U discloses an antifreeze toilet solenoid valve, which includes a central valve and solenoid valve assemblies located on both sides of the central valve. The solenoid valve assembly has an inlet, an outlet, and a valve seat port connecting the two. The solenoid valve assembly includes a baffle plate and a diaphragm. The baffle plate is connected above the diaphragm and forms a seal through the diaphragm and the valve seat port. However, in this solenoid valve assembly, if the solenoid valve assembly is suddenly closed, the subsequent water will be instantly blocked. The inertia of the water will cause water hammer. Generally, the larger the flow rate, the more severe the water hammer. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a low water hammer solenoid valve.

[0005] The technical solution adopted by this utility model is as follows: This application provides a low water hammer solenoid valve, including a housing, an inlet pipe disposed on the housing, and an outlet pipe disposed on both sides of the inlet pipe and communicating with it. A main valve is disposed on the inlet pipe, and a solenoid valve assembly is disposed on the outlet pipe. The solenoid valve assembly includes a valve body, a connecting seat, an electromagnetic coil, a baffle plate, a sealing bowl, and a spring. The valve body includes an inlet channel, an outlet channel, and a valve seat port connecting the two. The baffle plate includes a protruding column disposed facing the outlet channel. The sealing bowl is connected to the baffle plate, and its outer edge abuts between the valve body and the connecting seat. The spring abuts between the connecting seat and the baffle plate. Under the action of the spring, the sealing bowl and the valve seat port form a seal, and the protruding column extends into the outlet channel.

[0006] In some embodiments, the convex column includes an annular groove and a disc, the middle part of the sealing bowl is located in the annular groove, and the outer wall of the disc and the inner wall of the water outlet channel are close to each other.

[0007] In some embodiments, the disc body is provided with a planar segment and a conical segment in sequence along the direction of the water outlet channel. The planar segment is close to the water outlet channel, and the conical segment gradually decreases in size along the direction of the water outlet channel.

[0008] In some embodiments, the disc body is provided with a plurality of hollowed-out grooves uniformly arranged on the lower circumferential side of the conical section, and reinforcing ribs are formed between adjacent hollowed-out grooves.

[0009] In some embodiments, the lower end face of the convex column and the water outlet channel are coaxially provided with a hole.

[0010] In some embodiments, the inner wall and planar section at the upper end of the water outlet channel are conformally arranged.

[0011] In some embodiments, the valve body is provided with an annular groove, the sealing bowl includes a sealing portion, a deformation portion and an edge portion, the connecting seat is provided with a convex ring portion facing the annular groove portion, and the edge portion abuts against the convex ring portion and the annular groove portion.

[0012] In some embodiments, the deformable portion forms a groove at the upper end of the sealing portion, and the water baffle is embedded in the groove.

[0013] In some embodiments, a first sealing protrusion is provided in the annular groove, and a second sealing protrusion is provided on the edge portion facing the first sealing protrusion and offset from it.

[0014] In some embodiments, the sealing bowl is provided with a first through hole and a second through hole, and the baffle plate is provided with a first connecting post and a second connecting post. Both the first connecting post and the second connecting post are provided with connecting ring grooves, and their ends are provided with tapered heads. The tapered heads pass through the corresponding through holes so that the sealing bowl is located in the connecting ring grooves. The first connecting post is provided with a channel portion that penetrates the baffle plate along its axial direction.

[0015] The beneficial effects of this utility model are as follows: The protruding column in this utility model can extend into the water outlet channel when the baffle plate moves, which can quickly reduce the water flow at the valve seat port before completely cutting off the water flow, effectively reducing the water hammer effect. In particular, it avoids the strong water hammer caused by the instantaneous cutting off of a large flow of water by the diaphragm and valve seat port seal in traditional solenoid valves, thus extending the service life of the valve. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0017] Figure 1 is a schematic diagram of a low water hammer solenoid valve according to the present invention;

[0018] Figure 2 is a cross-sectional view of a low water hammer solenoid valve according to the present invention;

[0019] Figure 3 is a partial cross-sectional view of a low water hammer solenoid valve according to this utility model;

[0020] Figure 4 is a partial cross-sectional view of a low water hammer solenoid valve according to this utility model.

[0021] Figure 5 is a cross-sectional view of the water baffle plate in this utility model;

[0022] Figure 6 is a schematic diagram of the sealing bowl and the water-blocking plate in this utility model;

[0023] Figure 7 is a cross-sectional view of the sealing bowl and the water-blocking plate in this utility model. Detailed Implementation

[0024] The following description provides specific application scenarios and requirements for this specification, intended to enable those skilled in the art to make and use the contents of this specification. Various partial modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments and applications without departing from the spirit and scope of this specification. Therefore, this specification is not limited to the embodiments shown, but rather to the widest scope consistent with the claims.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "longitudinal", "lateral", "radial", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element or component to have a specific orientation, or to be constructed and operated in a specific orientation.

[0026] Secondly, the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components and should not be construed as limiting the embodiments of this application.

[0027] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral constructions; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two devices, components, or parts.

[0028] Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] Regarding the accompanying drawings of this application, it should be clearly understood that the drawings are for illustrative and descriptive purposes only and are not intended to limit the scope of this specification. It should also be understood that the drawings are not necessarily drawn to scale.

[0030] As shown in Figures 1 to 7, this specification provides a low water hammer solenoid valve, including a housing 1, an inlet pipe 2 disposed on the housing 1, and an outlet pipe 3 disposed on both sides of the inlet pipe 2 and connected thereto. The inlet pipe 2 is provided with a main valve, the structure of which can refer to the antifreeze toilet solenoid valve disclosed in patent publication number CN222185875U.

[0031] A solenoid valve assembly is installed on the water outlet pipe 3. The solenoid valve assembly includes a valve body 4, a connecting seat 5, a solenoid coil 6, a baffle plate 7, a sealing bowl 8, and a spring 9. The valve body 4 is formed from a portion of the housing 1. The valve body 4 includes an inlet channel 40, an outlet channel 41, and a valve seat 42 connecting the two. The baffle plate 7 includes a protruding column 70 facing the outlet channel 41. The sealing bowl 8 is connected to the baffle plate 7, and its outer edge abuts against the valve body 4 and the connecting seat 5. The spring 9... The sealing bowl 8 and the valve seat 42 form a seal under the action of the spring 9, and the protruding column 70 extends into the water outlet channel 41. By setting the protruding column 70 to extend into the water outlet channel 41 when the water baffle 7 moves, the water flow through the valve seat can be quickly reduced before the water flow is completely cut off, which effectively reduces the water hammer effect. In particular, it avoids the strong water hammer caused by the instantaneous cut-off of a large flow of water by the diaphragm and valve seat seal in traditional solenoid valves, thus extending the service life of the valve.

[0032] Furthermore, the convex column 70 includes an annular groove 700 and a disc 701. The middle part of the sealing bowl 8 is located in the annular groove 700. The outer wall of the disc 701 and the inner wall of the water outlet channel 41 are close to each other, which can be interpreted as basically fitting together. However, the normal fit gap should be allowed, and the gap is generally no more than 0.1mm. This setting can quickly reduce the water flow of the valve seat port 42 and improve the stability of the movement of the baffle plate 7.

[0033] Furthermore, the disc body 701 is provided with a planar section 702 and a conical section 703 in sequence along the direction of the water outlet channel 41. The planar section 702 is close to the water outlet channel 41, and the conical section 703 gradually decreases in size along the direction of the water outlet channel 41. Through the transition of the conical section 703, the water flow of the valve seat port 42 can be reduced smoothly and quickly.

[0034] In some embodiments, the disc body 701 has a plurality of uniformly arranged hollowed-out grooves 704 on the lower circumferential side of the conical section, and a reinforcing rib 705 is formed between adjacent hollowed-out grooves 704, as shown in FIG6. The uniform arrangement of four hollowed-out grooves 704 and the formation of four reinforcing ribs 705 reduces the material used in the baffle plate 7 while ensuring the strength of its structure. In addition, this shape also facilitates the insertion of the convex column 70 into the water outlet channel 41.

[0035] In some embodiments, the lower end face of the protruding column 70 and the water outlet channel 41 are coaxially provided with a hole 706 to prevent the water baffle 7 from shrinking and deforming due to excessive wall thickness during injection molding.

[0036] Preferably, the inner wall and the planar section 702 at the upper end of the water outlet channel 41 are shaped to fit the shape, that is, two coaxial rings, which can reduce the water flow to a minimum.

[0037] As shown in Figure 5, a spring positioning ring 707 protrudes upward in the middle of the water baffle 7 to ensure the stability of the spring 9 when it operates.

[0038] In some embodiments, the valve body 4 is provided with an annular groove 43, and the sealing bowl 8 includes a sealing part 80, a deformation part 81, and an edge part 82. The deformation part 81 can be U-shaped, J-shaped, etc. The connecting seat 5 is provided with a convex ring part 50 facing the annular groove 43. The edge part 82 abuts between the convex ring part 50 and the annular groove 43. The deformation part 81 forms a groove 83 at the upper end of the sealing part 80. The water baffle 7 is embedded in the groove 83, ensuring a reliable connection between the water baffle 7 and the sealing bowl 8.

[0039] Furthermore, a first sealing protrusion 430 is provided in the annular groove 43, and a second sealing protrusion 820 is provided on the side of the edge portion 82 facing the first sealing protrusion 430, which is offset from it, to ensure the sealing of the contact position of the annular groove 43, the protrusion 50 and the edge portion 82.

[0040] In some embodiments, the sealing bowl 8 is provided with a first through hole 84 and a second through hole 85, and the water baffle 7 is provided with a first connecting post 71 and a second connecting post 72. The first connecting post 71 and the second connecting post 72 are each provided with a connecting ring groove 73, and their ends are provided with a tapered head 74. The tapered head 74 passes through the corresponding through hole so that the sealing bowl 8 is located in the connecting ring groove 73, which further improves the reliability of the connection between the water baffle 7 and the sealing bowl 8.

[0041] Optionally, the sealing bowl 8 may be made of materials such as rubber or silicone.

[0042] As shown in Figure 7, the first connecting column 71 is provided with a channel 75 that passes through the baffle plate 7 along its axial direction, which can balance the pressure.

[0043] In summary, after reading this detailed disclosure, those skilled in the art will understand that the foregoing detailed disclosure is presented by way of example only and is not restrictive. Although not explicitly stated herein, those skilled in the art will understand that the requirements of this application encompass various reasonable changes, improvements, and modifications to the embodiments. These changes, improvements, and modifications are intended to be made by this application and are within the spirit and scope of the exemplary embodiments of this application.

[0044] Furthermore, it should be understood that in the foregoing description of the embodiments of this application, various features are combined in a single embodiment, drawing, or description for the purpose of simplifying the understanding of a feature. However, this does not mean that the combination of these features is necessary, and those skilled in the art may readily identify some of the devices as separate embodiments when reading this application. That is, the embodiments in this application can also be understood as an integration of multiple sub-embodiments. It is also valid when each sub-embodiment contains fewer than all the features of a single foregoing disclosed embodiment.

[0045] Finally, it should be understood that the embodiments disclosed herein are illustrative of the principles of the embodiments of this application. Other modified embodiments are also within the scope of this application. Therefore, the embodiments disclosed herein are merely examples and not limitations. Those skilled in the art can adopt alternative configurations to implement the applications in this application based on the embodiments in this application. Therefore, the embodiments of this application are not limited to the embodiments precisely described in the application.

Claims

1. A low water hammer solenoid valve, characterized in that, The device includes a housing, an inlet pipe mounted on the housing, and outlet pipes on both sides of the inlet pipe and communicating with it. A main valve is mounted on the inlet pipe, and a solenoid valve assembly is mounted on the outlet pipe. The solenoid valve assembly includes a valve body, a connecting seat, a solenoid coil, a baffle plate, a sealing bowl, and a spring. The valve body includes an inlet channel, an outlet channel, and a valve seat connecting the two. The baffle plate includes a protruding column facing the outlet channel. The sealing bowl is connected to the baffle plate, and its outer edge abuts against the valve body and the connecting seat. The spring abuts against the connecting seat and the baffle plate. Under the action of the spring, the sealing bowl and the valve seat form a seal, and the protruding column extends into the outlet channel.

2. The low water hammer solenoid valve according to claim 1, characterized in that, The convex column includes an annular groove and a disc, with the middle part of the sealing bowl located inside the annular groove, and the outer wall of the disc and the inner wall of the water outlet channel being close to each other.

3. A low water hammer solenoid valve according to claim 2, characterized in that, The disc body is provided with a planar section and a conical section in sequence along the direction of the water outlet channel. The planar section is close to the water outlet channel, and the conical section gradually decreases in size along the direction of the water outlet channel.

4. A low water hammer solenoid valve according to claim 3, characterized in that, The disc body has several hollowed-out grooves evenly distributed around the lower circumference of the conical section, and reinforcing ribs are formed between adjacent hollowed-out grooves.

5. A low water hammer solenoid valve according to claim 2, characterized in that, The lower end face of the convex column and the water outlet channel are coaxially provided with a hole.

6. A low water hammer solenoid valve according to claim 3, characterized in that, The inner wall and planar section at the upper end of the water outlet channel are shaped accordingly.

7. A low water hammer solenoid valve according to claim 1, characterized in that, The valve body is provided with an annular groove, the sealing bowl includes a sealing part, a deformation part and an edge part, the connecting seat is provided with a convex ring part facing the annular groove part, and the edge part abuts against the convex ring part and the annular groove part.

8. A low water hammer solenoid valve according to claim 7, characterized in that, The deformable part forms a groove at the upper end of the sealing part, and the water baffle is embedded in the groove.

9. A low water hammer solenoid valve according to claim 8, characterized in that, A first sealing protrusion is provided inside the annular groove, and a second sealing protrusion is provided on the edge of the annular groove, offset from the first sealing protrusion.

10. A low water hammer solenoid valve according to claim 1, characterized in that, The sealing bowl is provided with a first through hole and a second through hole, and the water baffle is provided with a first connecting post and a second connecting post. Both the first connecting post and the second connecting post are provided with connecting ring grooves, and their ends are provided with conical heads. The conical heads pass through the corresponding through holes so that the sealing bowl is located in the connecting ring grooves. The first connecting post is provided with a channel portion that penetrates the water baffle along its axial direction.

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