Electromagnetic valve with sealing function

Abstract

The utility model provides an electromagnetic valve with a sealing function. The electromagnetic valve comprises an electromagnetic controller, a valve body, an end cover, a valve cover, a sealing structure, an elastic supporting structure, a sealing pressing structure and a locking structure. The valve cover is arranged in the middle of the valve body, an end cover is arranged at the bottom of the electromagnetic controller, and the end cover and the valve cover are fixedly connected through a locking structure; the sealing structure is arranged between the end cover and the valve cover, the elastic supporting structure is located below the sealing structure, one end of the elastic supporting structure abuts against the valve body and is detachably connected, and the other end of the elastic supporting structure abuts against the sealing structure. According to the electromagnetic valve with the sealing function, the problem that an electromagnetic valve end cover sealing piece in the related technology loses elasticity and sealing capacity due to the fact that the sealing piece is extruded and deformed under the high-pressure environment is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electromagnetic valves, in particular to a electromagnetic valve with a sealing function. Background Art

[0002] A solenoid valve is an industrial device that uses electromagnetic control to control the opening and closing of fluids. It has the characteristics of fast response, high precision, and stability and reliability. Solenoid valves with sealing functions are widely used in many fields, such as hydraulic systems, pneumatic systems, water treatment systems, etc. The valve body of a solenoid valve usually has an end cover structure to seal the internal components. A seal needs to be installed between the end cover and the valve body to ensure sealing. The seals used in the prior art are flat washers or O-rings. Because the solenoid valve end cover seals in the related art are squeezed and deformed under high pressure, they lose their elasticity and sealing ability. Summary of the Invention

[0003] In view of this, the present invention aims to solve one of the related technical problems at least to a certain extent.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0005] A solenoid valve with a sealing function, comprising a solenoid controller, a valve body, an end cover, a valve cover, a sealing structure, an elastic support structure, a sealing pressing structure and a locking structure;

[0006] The valve cover is arranged in the middle of the valve body, the end cover is arranged at the bottom of the electromagnetic controller, and the end cover and the valve cover are connected and fixed by the locking structure;

[0007] The sealing structure is arranged between the end cover and the valve cover, the elastic support structure is located below the sealing structure, one end of the elastic support structure is detachably connected to the valve body, and the other end of the elastic support structure is detachably connected to the sealing structure;

[0008] The sealing and pressing structure is arranged on the end cover, and is used to press the upper end surface of the sealing structure.

[0009] Furthermore, the sealing structure includes a first sealing gasket and an annular protrusion, the annular protrusion is provided on the outer edge of the first sealing gasket, the upper end surface of the valve cover is provided with a first step groove, the first sealing gasket is provided in the first step groove, the annular protrusion is provided on the upper end surface of the valve cover, and the first sealing gasket and the first step groove are both annular structures.

[0010] Furthermore, the elastic support structure includes a support ring and multiple compression springs, the valve cover is provided with a second step groove, the second step groove is located on the inner side of the first step groove, and the multiple compression springs are evenly arranged circumferentially on the lower end surface of the support ring. The bottom of the compression spring is detachably connected to the second step groove, the support ring is against the first sealing gasket, and the second step groove is an annular structure.

[0011] Furthermore, the sealing structure also includes two annular sealing strips. The outer edge of the lower end surface of the support ring is a conical inclined surface. The two annular sealing strips seal the gap between the conical inclined surface and the first stepped groove.

[0012] Furthermore, the elastic support structure further includes a fixing ring, an upper end surface of the fixing ring is fixedly connected to the compression spring, and the fixing ring is connected to the second stepped groove via screws.

[0013] Furthermore, the sealing and clamping structure includes a second sealing gasket, a thickened pad and a plurality of clamping bolts. The thickened pad is arranged on the end cover, and the plurality of clamping bolts are evenly arranged on the thickened pad. The bottom of the clamping bolt is used to clamp the second sealing gasket, and the second sealing gasket is opposite to the first sealing gasket.

[0014] Furthermore, the locking structure includes a locking screw, a fixing nut and two limit baffles. The locking screw passes through the end cover and the valve cover. The fixing nut and the two limit baffles are both arranged on the locking screw. A limit baffle is correspondingly arranged on the outside of the end cover and the valve cover. The locking screw realizes the connection and fixation between the end cover and the valve cover through the fixing nut.

[0015] Compared with the prior art, the solenoid valve with sealing function described in the present invention has the following advantages:

[0016] 1. The elastic support structure automatically adjusts to seal wear or deformation, maintaining continuous and effective sealing performance. This compensation capability extends the service life of the sealing component. The elastic support structure effectively responds to fluctuations in internal system pressure. Through the compression and rebound of the spring, it absorbs the mechanical stress caused by pressure changes and ensures the stability of the seal. During operation, vibration and impact may be generated by fluid flow or other factors. The elastic support structure, through its spring action, provides a buffer, reducing wear and damage to the seal and other components. The elastic support structure ensures uniform force on the seal, thereby avoiding leakage caused by localized excessive pressure and helping to improve the reliability of the overall seal.

[0017] 2. The compression structure securely holds the seal in place, ensuring close contact between the sealing surfaces, significantly improving sealing effectiveness and reducing or preventing fluid leakage. The seal compression structure typically incorporates adjustable components (such as compression bolts) to adjust the compression force on the sealing surface to meet the sealing requirements under varying pressures. Appropriate compression force can effectively reduce excessive wear and fatigue on the seal, thereby extending the service life of the seal assembly.

[0018] 3. The combination of the first gasket and the annular protrusion provides multi-layered sealing protection, enhancing overall sealing reliability. Even if one seal fails, the other can still provide the necessary seal. The first gasket is embedded in the first stepped groove and cooperates with the annular protrusion to ensure close contact between the seal and the valve cover, effectively preventing fluid leakage. The annular structure of the gasket and stepped groove ensures more uniform force distribution, reducing the risk of deformation or leakage caused by inconsistent pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of a solenoid valve with a sealing function according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the sealing and pressing structure according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the sealing structure according to an embodiment of the present utility model;

[0023] Figure 4 This is a schematic cross-sectional view of the sealing structure according to an embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram of the compression spring structure described in an embodiment of the present utility model.

[0025] Description of reference numerals:

[0026] 101. Solenoid valve controller; 201. Valve body; 301. Valve cover; 302. End cover; 401. Locking structure; 501. Compression bolt; 601. First sealing gasket; 602. Support ring; 603. Compression spring; 604. Second step groove. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0030] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0031] A solenoid valve with sealing function, such as Figure 1 As shown, it includes an electromagnetic controller 101, a valve body 201, an end cover 302, a valve cover 301, a sealing structure, an elastic support structure, a sealing and pressing structure, and a locking structure 401; the valve cover 301 is arranged in the middle of the valve body 201, and the end cover 302 is arranged at the bottom of the electromagnetic controller 101, and the end cover 302 and the valve cover 301 are connected and fixed by the locking structure 401;

[0032] like Figure 3-4As shown, the sealing structure is arranged between the end cover 302 and the valve cover 301, and the elastic support structure is located below the sealing structure. One end of the elastic support structure is detachably connected to the valve body 201, and the other end of the elastic support structure is detachably connected to the sealing structure. The sealing structure includes a first sealing gasket 601 and an annular protrusion. The outer edge of the first sealing gasket 601 is provided with an annular protrusion. The upper end surface of the valve cover 301 is provided with a first stepped groove. The first sealing gasket 601 is arranged in the first stepped groove. The annular protrusion is arranged on the upper end surface of the valve cover 301. The first sealing gasket 601 and the first stepped groove are both annular structures. The sealing structure also includes two annular sealing strips. The outer edge of the lower end surface of the support ring 602 is a conical inclined surface. The two annular sealing strips are located in the gap between the sealing conical inclined surface and the first stepped groove. The combination of the first sealing gasket 601 and the annular protrusion provides multi-level sealing protection, enhancing the overall sealing reliability. Even if one layer of sealing fails, the other layer can still provide the necessary sealing. The first sealing gasket 601 is embedded in the first stepped groove and cooperates with the annular protrusion to ensure close contact between the seal and the valve cover 301, effectively preventing fluid leakage. The annular structure of the sealing gasket and the stepped groove ensures more uniform force distribution, reducing the risk of deformation or leakage caused by inconsistent pressure.

[0033] like Figure 2 As shown, the sealing compression structure is arranged on the end cover 302, and the sealing compression structure is used to compress the upper end face of the sealing structure. The sealing compression structure includes a second sealing gasket, a thickened pad and a plurality of compression bolts 501. The thickened pad is arranged on the end cover 302, and a plurality of compression bolts 501 are evenly arranged on the circumference of the thickened pad. The bottom of the compression bolt 501 is used to compress the second sealing gasket, and the second sealing gasket is opposite to the first sealing gasket 601. The sealing member is firmly fixed in place by the compression structure to ensure close contact between the sealing surfaces, significantly improve the sealing effect, and reduce or avoid fluid leakage. The sealing compression structure is usually designed with adjustable components (such as compression bolts 501), and the compression force of the sealing surface can be adjusted according to actual needs to adapt to the sealing requirements under different pressure environments. Appropriate compression force can effectively reduce excessive wear and fatigue of the seal, thereby extending the service life of the sealing assembly.

[0034] The elastic support structure includes a support ring 602 and multiple compression springs 603. The valve cover 301 is provided with a second stepped groove 604, which is located inside the first stepped groove. Multiple compression springs 603 are evenly arranged circumferentially on the lower end surface of the support ring 602. The bottom of the compression spring 603 is detachably connected to the second stepped groove 604. The support ring 602 is against the first sealing gasket 601, and the second stepped groove 604 is an annular structure. The elastic support structure also includes a fixing ring, the upper end surface of the fixing ring is fixedly connected to the compression spring 603, and the fixing ring is connected to the second stepped groove 604 by screws. The elastic support structure can automatically adjust according to the wear or deformation of the seal, thereby maintaining continuous and effective sealing performance. This compensation capability can extend the service life of the sealing assembly. The elastic support structure can effectively cope with fluctuations in the internal pressure of the system. Through the compression and rebound of the spring, it absorbs the mechanical stress caused by pressure changes and ensures the stability of the seal. During operation, fluid flow and other factors may cause vibration and impact. The elastic support structure's spring action provides a buffer, reducing wear and damage to seals and other components. The elastic support structure ensures uniform force on the seal, thereby preventing leakage caused by localized excessive pressure and helping to improve overall sealing reliability.

[0035] The locking structure 401 includes a locking screw, a fixing nut and two limit baffles. The locking screw passes through the end cover 302 and the valve cover 301. The fixing nut and the two limit baffles are all arranged on the locking screw. A limit baffle is correspondingly arranged on the outside of the end cover 302 and the valve cover 301. The locking screw realizes the connection and fixation between the end cover 302 and the valve cover 301 through the fixing nut.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A solenoid valve with a sealing function, characterized in that: It comprises an electromagnetic controller (101), a valve body (201), an end cover (302), a valve cover (301), a sealing structure, an elastic supporting structure, a sealing pressing structure and a locking structure (401); The valve cover (301) is arranged in the middle of the valve body (201), and the end cover (302) is arranged at the bottom of the electromagnetic controller (101), and the end cover (302) and the valve cover (301) are connected and fixed by the locking structure (401); the sealing structure is arranged between the end cover (302) and the valve cover (301), and the elastic support structure is located below the sealing structure, one end of the elastic support structure is detachably connected to the valve body (201), and the other end of the elastic support structure is detachably connected to the sealing structure; The sealing pressing structure is arranged on the end cover (302), and is used to press the upper end surface of the sealing structure.

2. The solenoid valve with sealing function according to claim 1, characterized in that: The sealing structure includes a first sealing gasket (601) and an annular protrusion, the annular protrusion is provided on the outer edge of the first sealing gasket (601), the upper end surface of the valve cover (301) is provided with a first stepped groove, the first sealing gasket (601) is arranged in the first stepped groove, the annular protrusion is arranged on the upper end surface of the valve cover (301), and the first sealing gasket (601) and the first stepped groove are both annular structures.

3. The solenoid valve with sealing function according to claim 2, characterized in that: The elastic support structure includes a support ring (602) and a plurality of compression springs (603); the valve cover (301) is provided with a second stepped groove (604); the second stepped groove (604) is located inside the first stepped groove; the plurality of compression springs (603) are evenly arranged circumferentially on the lower end surface of the support ring (602); the bottom of the compression spring (603) is detachably connected to the second stepped groove (604); the support ring (602) abuts against the first sealing gasket (601); and the second stepped groove (604) is an annular structure.

4. The solenoid valve with sealing function according to claim 3, characterized in that: The sealing structure further comprises two annular sealing strips. The outer edge of the lower end surface of the support ring (602) is a conical inclined surface. The two annular sealing strips are used to seal the gap between the conical inclined surface and the first stepped groove.

5. The solenoid valve with sealing function according to claim 3, characterized in that: The elastic support structure further comprises a fixing ring, the upper end surface of which is fixedly connected to the compression spring (603), and the fixing ring is connected to the second stepped groove (604) via screws.

6. The solenoid valve with sealing function according to any one of claims 2 to 5, characterized in that: The sealing and clamping structure includes a second sealing gasket, a thickened pad and a plurality of clamping bolts (501), wherein the thickened pad is arranged on the end cover (302), and the plurality of clamping bolts (501) are arranged evenly circumferentially on the thickened pad, and the bottom of the clamping bolts (501) is used to clamp the second sealing gasket, and the second sealing gasket is directly opposite to the first sealing gasket (601).

7. The solenoid valve with sealing function according to claim 6, characterized in that: The locking structure (401) includes a locking screw, a fixing nut and two limiting baffles. The locking screw passes through the end cover (302) and the valve cover (301). The fixing nut and the two limiting baffles are both arranged on the locking screw. One limiting baffle is correspondingly arranged on the outside of the end cover (302) and the valve cover (301). The locking screw realizes the connection and fixation between the end cover (302) and the valve cover (301) through the fixing nut.

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