Solenoid valve

Abstract

The utility model relates to an electromagnetic valve which comprises a valve body provided with a water inlet and a water outlet. The water sealing assembly is movably installed in the valve body and comprises a support and a water sealing piece, the outer wall of the support is sleeved with the water sealing piece, and the water sealing piece is used for opening the water inlet so that the water inlet can communicate with the water outlet; the water sealing piece is further used for closing the water inlet so as to cut off communication between the water inlet and the water outlet. One end of the spring is fixedly connected with the valve body, and the other end of the spring is fixedly connected with the support in the moving direction of the water sealing assembly. Due to the fact that the spring is fixed to the support, only the support is used for bearing the spring, and the spring does not make direct contact with the water sealing piece and does not exert acting force on the water sealing piece, in the using process of the electromagnetic valve, the spring does not damage the structure of the water sealing piece, and the service life of the water sealing piece can be prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of valve devices, in particular to an electromagnetic valve. BACKGROUND

[0002] The water inlet of the electromagnetic valve is usually provided with a water sealing member made of rubber, which is movably installed in the electromagnetic valve by a metal spring, so that the water sealing member can open or close the water inlet. However, since the water sealing member is directly connected with the metal spring, the compression elastic force of the metal spring will act on the water sealing member, which will cause damage to the water sealing member after long-term use and affect the normal use of the electromagnetic valve. CONTENT OF THE UTILITY MODEL

[0003] The present application provides an electromagnetic valve, which can solve the problem of low service life of the electromagnetic valve caused by the damage of the water sealing member in the prior art.

[0004] The present application provides an electromagnetic valve, which can solve the problem of low service life of the electromagnetic valve caused by the damage of the water sealing member in the prior art.

[0005] In a possible design, the outer wall of the bracket is provided with a mounting groove, and at least part of the water sealing member is contained in the mounting groove.

[0006] In a possible design, the valve body includes a main body and a valve cover fixedly connected, and the main body and the valve cover enclose a valve cavity; the water sealing member includes a fixed part and a water sealing part connected, and the fixed part is clamped between the main body and the valve cover in the movement direction of the water sealing assembly; and the water sealing part moves relative to the fixed part in the valve cavity.

[0007] In a possible design, the water sealing member further includes a connecting part fixedly connected with the fixed part and the water sealing part at both ends thereof in the radial direction of the water sealing member; the valve body is provided with an overlapping part, and the connecting part overlaps the overlapping part when the water sealing member closes the water inlet; and the connecting part is arched away from the overlapping part in the movement direction of the water sealing assembly when the water sealing member opens the water inlet.

[0008] In a possible design, the edge of the water inlet is provided with a protrusion, the protrusion protrudes towards the water sealing member along the movement direction of the water sealing assembly, and the protrusion is used for sealing cooperation with the water sealing member when the water sealing member closes the water inlet.

[0009] In a possible design, the bracket includes a guide portion, at least part of the guide portion is located in the water inlet, and the guide portion is used for cooperation with the inner wall of the water inlet during the movement of the water sealing assembly.

[0010] In a possible design, the valve body further has a water outlet, the bracket is provided with a water passage, the water passage is in communication with the water inlet and the water outlet respectively, the water sealing member can close the water inlet when the water outlet is in a closed state, and the water sealing member can open the water inlet when the water outlet is in an open state.

[0011] In a possible design, the spring has a needle-proofing portion, and the needle-proofing portion is arranged in the water passage.

[0012] In a possible design, the electromagnetic valve further includes an electromagnetic mechanism, the electromagnetic mechanism is arranged in the valve body, the electromagnetic mechanism is used for controlling the opening or closing of the water outlet, the water outlet is in a closed state when the electromagnetic mechanism is closed, and the water outlet is in an open state when the electromagnetic mechanism is open.

[0013] In a possible design, the electromagnetic mechanism includes a moving iron core, a static iron core and an electromagnetic coil, the static iron core is fixedly arranged in the electromagnetic coil, the moving iron core is slidably connected to the electromagnetic coil, and a gasket is arranged on the moving iron core, the gasket can block the water outlet to make the water outlet in a closed state when the electromagnetic coil is powered off, and the moving iron core moves towards the static iron core and is attracted to the static iron core to make the gasket away from the water outlet to make the water outlet in an open state when the electromagnetic coil is powered on.

[0014] In the present application, the water sealing assembly can compress the spring upwards when the water sealing assembly opens the water inlet, and there is an interaction force between the spring and the water sealing assembly; the water sealing assembly is subjected to the elastic force of the spring when the water sealing assembly closes the water inlet, that is, the spring always has a force on the water sealing assembly. Since the spring is fixed on the bracket, only the bracket is used to bear the spring, and the spring does not directly contact the water sealing member and does not exert a force on the water sealing member, so that the spring does not damage the structure of the water sealing member during use of the electromagnetic valve, thereby prolonging the service life of the water sealing member.

[0015] It should be understood that the foregoing general description and the following detailed description are only exemplary and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of the solenoid valve provided in this application;

[0017] Figure 2 for Figure 1 Schematic diagram of the state of the solenoid valve when the water inlet is closed;

[0018] Figure 3 for Figure 1 Schematic diagram of the state of the solenoid valve when the water inlet is opened;

[0019] Figure 4 for Figure 2 Schematic diagram of the structure of the bracket;

[0020] Figure 5 for Figure 2 Schematic diagram of the structure of the water sealing component;

[0021] Figure 6 for Figure 2 Schematic diagram of the structure of the spring;

[0022] Figure 7 for Figure 2 Schematic diagram of the assembly structure of the spring and water sealing component.

[0023] Reference numerals:

[0024] 1-valve body;

[0025] 101-main body;

[0026] 102-valve cover;

[0027] 103-valve chamber;

[0028] 11-water inlet;

[0029] 111- raised portion;

[0030] 12-water outlet;

[0031] 13- drain outlet;

[0032] 14- overlapping portion;

[0033] 2-water sealing assembly;

[0034] 21- bracket;

[0035] 211-installation slot;

[0036] 212-guide portion;

[0037] 213-Water hole;

[0038] 22-water sealing parts;

[0039] 221 - fixing part;

[0040] 222 - water sealing part;

[0041] 223 - connecting part;

[0042] 224 - mounting part;

[0043] 3 - spring;

[0044] 31 - needle preventing part;

[0045] 4 - electromagnetic mechanism;

[0046] 41 - moving iron core;

[0047] 42 - static iron core;

[0048] 43 - electromagnetic coil;

[0049] 44 - gasket;

[0050] 45 - elastic member.

[0051] The accompanying drawings, which are incorporated herein and constitute part of this specification, illustrate embodiments consistent with the application and serve to explain the principles of the application. DETAILED DESCRIPTION

[0052] For better understanding of the technical solutions of the present application, the embodiments of the present application are described in detail below with reference to the drawings.

[0053] It should be clear that the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0054] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0055] It should be understood that the term "and / or" used herein is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0056] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described based on the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should be understood that when it is mentioned that an element is connected to another element "on" or "under", it can not only be directly connected to the other element "on" or "under", but also be indirectly connected to the other element "on" or "under" through an intermediate element.

[0057] like Figure 1 As shown, the embodiment of the present application provides a solenoid valve, which includes a valve body 1 and a water sealing component 2 and a spring 3 located inside the valve body 1. Figure 2 As shown, the valve body 1 includes a main body 101 and a valve cover 102 that are fixedly connected. The main body 101 has a water inlet 11 and a water outlet 12. The main body 101 and the valve cover 102 enclose a valve cavity 103. The water sealing assembly 2 is movably installed in the valve cavity 103 by a spring 3. Specifically, the water sealing assembly 2 includes a bracket 21 and a water sealing member 22. The water sealing member 22 is sleeved on the outer wall of the bracket 21. Along the movement direction Z of the water sealing assembly 2, one end of the spring 3 is fixedly connected to the valve cover 102, and the other end is fixedly connected to the bracket 21. Specifically, as shown in FIG. Figure 2 As shown, the water sealing member 22 is used to abut against the edge of the water inlet 11 when the water sealing assembly 2 moves downward to close the water inlet 11, thereby cutting off the communication between the water inlet 11 and the water outlet 12 and preventing the water in the water inlet 11 from flowing to the water outlet 12. Figure 3 As shown, the water sealing member 22 is also used to release the abutment with the edge of the water inlet 11 when the water sealing assembly 2 moves upward to open the water inlet 11, thereby connecting the water inlet 11 with the water outlet 12 so that the water in the water inlet 11 can flow to the water outlet 12.

[0058] In this embodiment, when the water sealing assembly 2 opens the water inlet 11, the water sealing assembly 2 can compress the spring 3 upward, resulting in an interaction force between the spring 3 and the water sealing assembly 2. When the water sealing assembly 2 closes the water inlet 11, the water sealing assembly 2 is subjected to the elastic force of the spring 3, that is, the spring 3 always exerts a force on the water sealing assembly 2. Because the spring 3 is fixed to the bracket 21, only the bracket 21 is used to support the spring 3. The spring 3 does not directly contact the water sealing member 22 and does not exert a force on the water sealing member 22. Therefore, during the use of the solenoid valve, the spring 3 will not damage the structure of the water sealing member 22, thereby extending the service life of the water sealing member 22.

[0059] In this embodiment, the spring 3 can be made of metal; the water sealing component 22 can be made of rubber with good sealing performance and elasticity; the bracket 21 can be made of plastic, which is not only cheap but also light in weight and will not affect the up and down movement of the water sealing component 2.

[0060] In a specific embodiment, as shown in Figure 4 The outer wall of the bracket 21 is provided with a mounting groove 211, and at least part of the water sealing member 22 is accommodated in the mounting groove 211. Specifically, as shown in Figure 2 and Figure 5 The inner wall of the water sealing member 22 is provided with a mounting portion 224, which protrudes inward along the radial direction X of the water sealing member 22, and the mounting portion 224 is mounted in the mounting groove 211. The mounting groove 211 can limit the mounting portion 224 in the axial direction Z of the bracket 21, thereby reducing the risk of the water sealing member 22 falling off the bracket 21, and facilitating to improve the installation stability of the water sealing assembly 2.

[0061] In a specific embodiment, as shown in Figure 2 and Figure 5 The water sealing member 22 comprises a fixing portion 221 and a water sealing portion 222 connected with each other. In the movement direction Z of the water sealing assembly 2, the fixing portion 221 is used to be clamped between the main body 101 and the valve cover 102, i.e., the fixing portion 221 is fixedly connected with the valve body 1, so as to realize the installation of the water sealing member 22. The water sealing portion 222 is used to be mounted with the bracket 21, and is used to move up and down relative to the fixing portion 221 in the valve cavity 103, so as to open or close the water inlet 11. By providing the fixing portion 221, the movement path and amplitude of the water sealing assembly 2 in the valve body 1 can be limited, so as to improve the movement stability of the water sealing assembly 2 in the valve body 1, thereby facilitating to improve the reliability of the water sealing assembly 2.

[0062] The mounting portion 224 is located on the inner wall of the water sealing portion 222.

[0063] In a specific embodiment, as shown in Figure 2 The edge of the water inlet 11 is provided with a protruding portion 111, which protrudes in the direction close to the water sealing member 22 along the movement direction Z of the water sealing assembly 2, and the protruding portion 111 is used to be sealingly matched with the water sealing member 22 when the water sealing member 22 closes the water inlet 11. When the water sealing member 22 closes the water inlet 11, the water sealing member 22 can form an interference fit with the protruding portion 111, so as to increase the abutting area of the water sealing member 22 and the edge of the water inlet 11, thereby facilitating to improve the water sealing effect of the water sealing assembly 2.

[0064] In a specific embodiment, as shown in Figure 2 and Figure 4As shown, the bracket 21 comprises a guide portion 212, at least part of the guide portion 212 is located in the water inlet 11, the guide portion 212 is used to limit cooperation with the inner wall of the water inlet 11 during the movement of the water sealing assembly 2, so as to prevent the water sealing assembly 2 from deviating during the up-down movement, thereby facilitating to improve the movement stability of the water sealing assembly 2. Specifically, the guide portion 212 can be a slope structure, which can cooperate with the protruding portion 111 during the downward movement of the water sealing assembly 2 to play a guiding role, thereby facilitating to further improve the movement stability of the water sealing assembly 2.

[0065] In a specific embodiment, as shown in Figure 2 and Figure 5 As shown, the water sealing member 22 further comprises a connecting portion 223, which is fixedly connected with the fixed portion 221 and the water sealing portion 222 at both ends along the radial direction X of the water sealing member 22. The main body 101 is provided with a lap portion 14, when the water sealing member 22 closes the water inlet 11, the connecting portion 223 is lapped on the lap portion 14, and the lap portion 14 supports the water sealing member 22, thereby facilitating to improve the stability of the water sealing assembly 2. When the water sealing member 22 opens the water inlet 11, the connecting portion 223 will be elastically deformed and arch upward along the movement direction Z of the water sealing assembly 2 away from the lap portion 14. Through the deformation of the connecting portion 223, the stress of the water sealing member 22 can be released, thereby reducing the risk of damage of the water sealing member 22 and facilitating to improve the service life of the water sealing member 22.

[0066] The working principle of the water sealing member 22 opening and closing the water inlet 11 will be introduced below, as shown in Figure 2 and Figure 3 As shown, the valve cover 102 has a drain 13, the bracket 21 is provided with a water passing hole 213, the water passing hole 213 is in communication with the water inlet 11 and the drain 13 respectively, the electromagnetic valve further comprises an electromagnetic mechanism 4, the electromagnetic mechanism 4 is installed in the valve cover 102, and the electromagnetic mechanism 4 is used to control the opening or closing of the drain 13. When the electromagnetic mechanism 4 is closed, the drain 13 is in a closed state, and the water sealing member 22 can close the water inlet 11; when the electromagnetic mechanism 4 is opened, the drain 13 is in an open state, and the water sealing member 22 can open the water inlet 11.

[0067] In the embodiment, the water inlet 11 is always in a water passing state, and the electromagnetic mechanism 4 is used to control the electromagnetic valve to be in a closed water passing state or an open water passing state. When the electromagnetic mechanism 4 is closed to make the electromagnetic valve be in the closed water passing state, the water at the water inlet 11 can flow into the valve cavity 103 from the water passing hole 213, but the water outlet 13 is in a closed state, and the water sealing assembly 2 can close the water inlet 11 under the action of the water pressure in the valve cavity 103 and the elastic force of the spring 3, so that the water sealing element 22 is in sealing cooperation with the protruding part 111, and at this time, the water pressure in the valve cavity 103 is in a balanced state with the water pressure at the water inlet 11. When the electromagnetic mechanism 4 is opened to make the electromagnetic valve be in the open water passing state, the water outlet 13 is in an open state, and the water at the water inlet 11 can flow into the valve cavity 103 from the water passing hole 213 and flow to the outside through the water outlet 13, at this time, the water pressure at the water inlet 11 is greater than the water pressure in the valve cavity 103, and the water sealing assembly 2 can move upward and compress the spring 3 under the action of the internal and external pressure difference, so as to open the water inlet 11, at this time, most of the water can flow to the water outlet 12 from the lower side of the water sealing element 22.

[0068] In a specific embodiment, as shown in Figure 2 and Figure 3 the electromagnetic mechanism 4 includes a moving iron core 41, a static iron core 42 and an electromagnetic coil 43, the static iron core 42 is fixedly installed in the electromagnetic coil 43, the moving iron core 41 is slidably connected in the electromagnetic coil 43, and a gasket 44 is installed on the moving iron core 41. When the electromagnetic coil 43 is powered off, the gasket 44 can block the water outlet 13, so that the water outlet 13 is in a closed state. When the electromagnetic coil 43 is powered on, the moving iron core 41 moves towards the static iron core 42 and is attracted to the static iron core 42, and the gasket 44 can move away from the water outlet 13, so that the water outlet 13 is in an open state.

[0069] In the embodiment, when the electromagnetic mechanism 4 is in an open state, the electromagnetic coil 43 is powered on and generates a magnetic field, the static iron core 42 in the electromagnetic field can generate an electromagnetic attraction force to attract the moving iron core 41, so that the moving iron core 41 moves close to the static iron core 42 under the action of the attraction force of the static iron core 42 until the moving iron core 41 is attracted to the static iron core 42, at this time, the gasket 44 can move away from the water outlet 13 to connect the valve cavity 103 with the outside, and the water in the valve cavity 103 can flow out of the electromagnetic valve through the water outlet 13. When the electromagnetic mechanism 4 is in a closed state, the electromagnetic coil 43 is powered off, the attraction force of the static iron core 42 disappears, and the moving iron core 41 is separated from the static iron core 42 and returns to the original position, at this time, the gasket 44 can close the water outlet 13 to block the water in the valve cavity 103 from flowing to the outside.

[0070] Further, the electromagnetic mechanism 4 further includes an elastic element 45, one end of the elastic element 45 abuts against the moving iron core 41, and the other end of the elastic element 45 abuts against the static iron core 42. As shown in Figure 2As shown, when the electromagnetic mechanism 4 is in the closed state, the elastic member 45 is in the stretched state, at this time, the electromagnetic mechanism 4 is turned on, the static iron core 42 generates an attractive force on the moving iron core 41, when the attractive force is greater than the elastic force of the elastic member 45, the moving iron core 41 can be attracted to the static iron core 42, at this time, the elastic member 45 is compressed (as Figure 3 shown); if the electromagnetic mechanism 4 is turned off, the attractive force between the static iron core 42 and the moving iron core 41 is eliminated, the pressure applied to the elastic member 45 is also eliminated, and the elastic member 45 can push the moving iron core 41 back to the original position under the action of its restoring force.

[0071] In a specific embodiment, as shown in Figure 6 , the spring 3 has a needle blocking prevention member 31, as shown in Figure 2 and Figure 7 , the needle blocking prevention member 31 is arranged in the water passage hole 213 and is in clearance fit with the water passage hole 213, during the up-down movement of the water blocking assembly 2, there is relative movement between the needle blocking prevention member 31 and the water passage hole 213, if there is foreign matter, the needle blocking prevention member 31 can timely remove the foreign matter, and has the effect of preventing blocking, and improves the anti-blocking effect of the electromagnetic valve, thereby being beneficial to improving the service life of the electromagnetic valve.

[0072] The above only describes the preferred embodiments of the present application and is not used to limit the present application, for those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A solenoid valve, characterized in that: include: A valve body (1) having a water inlet (11) and a water outlet (12); A water sealing component (2) is movably installed in the valve body (1), and the water sealing component (2) comprises a bracket (21) and a water sealing member (22). The water sealing member (22) is sleeved on the outer wall of the bracket (21). The water sealing member (22) is used to open the water inlet (11) so that the water inlet (11) is connected to the water outlet (12); the water sealing member (22) is also used to close the water inlet (11) so as to cut off the communication between the water inlet (11) and the water outlet (12); A spring (3) is provided, along the movement direction of the water sealing assembly (2), with one end of the spring (3) being fixedly connected to the valve body (1) and the other end being fixedly connected to the bracket (21).

2. The solenoid valve according to claim 1, characterized in that An outer wall of the bracket (21) is provided with a mounting groove (211), and at least a portion of the water sealing component (22) is accommodated in the mounting groove (211).

3. The solenoid valve according to claim 1, characterized in that The valve body (1) comprises a main body (101) and a valve cover (102) that are fixedly connected, and the main body (101) and the valve cover (102) enclose a valve cavity (103); The water sealing member (22) comprises a fixed portion (221) and a water sealing portion (222) connected to each other, and along the movement direction of the water sealing assembly (2), the fixed portion (221) is clamped between the main body (101) and the valve cover (102); The water sealing portion (222) moves relative to the fixing portion (221) in the valve cavity (103).

4. The solenoid valve according to claim 3, characterized in that The water sealing member (22) further comprises a connecting portion (223), and along the radial direction of the water sealing member (22), two ends of the connecting portion (223) are fixedly connected to the fixing portion (221) and the water sealing portion (222) respectively; A lap joint (14) is provided in the valve body (1), and when the water sealing member (22) closes the water inlet (11), the connecting portion (223) overlaps the lap joint (14); When the water sealing member (22) opens the water inlet (11), the connecting portion (223) arches along the movement direction of the water sealing component (2) in a direction away from the overlapping portion (14).

5. The solenoid valve according to claim 1, characterized in that A raised portion (111) is provided on the edge of the water inlet (11), and the raised portion (111) is raised in a direction close to the water sealing member (22) along the movement direction of the water sealing assembly (2), and the raised portion (111) is used to seal with the water sealing member (22) when the water sealing member (22) closes the water inlet (11).

6. The solenoid valve according to claim 1, characterized in that The bracket (21) comprises a guide portion (212), at least part of which is located in the water inlet (11), and the guide portion (212) is used to cooperate with the inner wall of the water inlet (11) during the movement of the water sealing assembly (2).

7. The solenoid valve according to any one of claims 1 to 6, characterized in that: The valve body (1) further comprises a drain port (13), and the bracket (21) is provided with a water hole (213), wherein the water hole (213) is respectively connected to the water inlet (11) and the drain port (13); When the drain port (13) is in a closed state, the water sealing member (22) can close the water inlet (11); When the water drain port (13) is in an open state, the water sealing member (22) can open the water inlet (11).

8. The solenoid valve according to claim 7, characterized in that The spring (3) has an anti-blocking needle (31), and the anti-blocking needle (31) is inserted into the water hole (213).

9. The solenoid valve according to claim 7, characterized in that The solenoid valve further comprises an electromagnetic mechanism (4), wherein the electromagnetic mechanism (4) is installed in the valve body (1); The electromagnetic mechanism (4) is used to control the opening or closing of the water drain port (13); when the electromagnetic mechanism (4) is closed, the water drain port (13) is in a closed state; when the electromagnetic mechanism (4) is opened, the water drain port (13) is in an open state.

10. The solenoid valve according to claim 9, characterized in that The electromagnetic mechanism (4) comprises a moving iron core (41), a static iron core (42) and an electromagnetic coil (43); the static iron core (42) is fixedly installed in the electromagnetic coil (43); the moving iron core (41) is slidably connected in the electromagnetic coil (43); and a lining (44) is installed on the moving iron core (41); When the electromagnetic coil (43) is powered off, the lining (44) can block the drain port (13), so that the drain port (13) is in a closed state; when the electromagnetic coil (43) is powered on, the moving iron core (41) moves toward the static iron core (42) and is attracted to the static iron core (42), and the lining (44) can move away from the drain port (13), so that the drain port (13) is in an open state.

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