Solenoid valve structure with good water attack resisting effect

Abstract

The utility model relates to the technical field of electromagnetic valves, and discloses an electromagnetic valve structure with a good water attack resisting effect, which comprises an electromagnetic valve component, a diaphragm component and an elastic hole pressing component. The diaphragm assembly is mounted on the electromagnetic valve assembly; a water inlet hole is formed in the membrane assembly; the elastic hole pressing assembly is arranged on the water inlet hole; the upper end of the elastic hole pressing assembly is connected with the electromagnetic valve assembly; the lower end of the elastic hole pressing assembly is pressed on the water inlet hole and can move up and down relative to the water inlet hole. When the electromagnetic valve structure with the good water attack resisting effect is opened, two forces are formed by the elastic hole pressing assembly and water inlet pressure to resist opposite impact, opening of the water inlet hole is slowed down, the opening degree of the water inlet hole is reduced to the minimum, and therefore the water inlet amount of the water inlet hole is small, and when the valve is closed, the water attack resisting effect is good. The elastic hole pressing assembly effectively relieves the water inlet pressure when the electromagnetic valve assembly is adjusted and controlled to close the valve, the instant impact of the water inlet pressure is better resisted, the effect of gentle and buffering valve closing is achieved, and then the phenomenon of water hammer (water hammer) is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to an electromagnetic valve structure with good anti-water hammer effect. Background Art

[0002] Most solenoid valves on the market now have a large water hammer phenomenon, which can easily cause great damage to pipes, valves, etc. Existing solenoid valves use a fixed-diameter water inlet to control a fixed amount of water entering, but this type of solenoid valve lacks effective means to control the amount of water entering the water inlet, resulting in a relatively serious water hammer phenomenon in the solenoid valve. Utility Model Content

[0003] The utility model aims to overcome the problems of the prior art and provide a solenoid valve structure with good anti-water hammer effect.

[0004] In order to achieve the above purpose, the utility model adopts the following scheme:

[0005] A solenoid valve structure with good anti-water hammer effect, comprising a solenoid valve assembly; and further comprising:

[0006] A diaphragm assembly is mounted on the solenoid valve assembly; the diaphragm assembly has a water inlet hole;

[0007] An elastic hole-pressing component is arranged on the water inlet hole; the upper end of the elastic hole-pressing component is connected to the solenoid valve component; the lower end of the elastic hole-pressing component is pressed on the water inlet hole and can move up and down relative to the water inlet hole.

[0008] Furthermore, the elastic pressure hole assembly includes an anti-water hammer spring and a pressure hole gasket; the upper end of the anti-water hammer spring is connected to the solenoid valve assembly; the pressure hole gasket is connected to the lower end of the anti-water hammer spring and presses on the water inlet hole, and can move up and down relative to the water inlet hole.

[0009] Furthermore, the solenoid valve assembly includes a valve seat, a valve cover and a solenoid valve body; the solenoid valve body has a valve core that can move up and down; the diaphragm assembly is adapted and embedded in the upper end of the valve seat; the valve cover is adapted and covered in the upper end of the valve seat and presses and fixes the diaphragm assembly; the solenoid valve body presses the valve cover and is connected to the valve seat; the valve cover has a pressure relief hole closed by the valve core.

[0010] In one embodiment, the diaphragm assembly includes a first diaphragm and a first pilot column adapted to be mounted at the center of the first diaphragm; the first diaphragm is adapted to be embedded in the upper end of the valve seat; the water inlet hole is opened on the lower end of the first pilot column; the upper end of the first pilot column has a guide column cavity connected to the water inlet hole and the pressure relief hole;

[0011] The pressure hole gasket is embedded in the guide column cavity and pressed on the water inlet hole; the upper end of the anti-water hammer spring is connected to the valve cover; the lower end of the anti-water hammer spring is embedded in the guide column cavity and connected to the pressure hole gasket.

[0012] Furthermore, the lower end of the anti-water hammer spring has a guide rod extending into the water inlet hole; the pressure hole gasket is sleeved on the guide rod.

[0013] Furthermore, the punching gasket is cylindrical.

[0014] In another embodiment, the diaphragm assembly includes a second diaphragm, a second pilot column, a guide column slot body and a water inlet pipe body; the guide column slot body is connected to the upper end of the second pilot column; the second pilot column is adaptively mounted on the center position of the lower end of the second diaphragm; the guide column slot body is adaptively mounted in the upper end of the second diaphragm; the guide column slot body is connected to the pressure relief hole; the water inlet pipe body is connected to the lower end of the guide column slot body and is located on one side of the second pilot column, and is adaptively passed through the second diaphragm; the water inlet hole is provided on the water inlet pipe body and is connected to the guide column slot body;

[0015] The anti-water hammer spring and the hole-pressing gasket are sequentially embedded in the guide column groove body from bottom to top corresponding to the position of the water inlet hole; the upper end of the anti-water hammer spring is in contact with the valve cover;

[0016] A return spring is connected between the guide column slot body and the valve cover; the return spring has a positioning guide rod that passes through the anti-water hammer spring and is adapted to pass through the pressure hole gasket, and the lower end of the positioning guide rod extends into the water inlet hole.

[0017] Furthermore, the water inlet hole is close to the groove side wall of the guide column groove body; the hole pressing gasket is a semi-cylindrical structure that is adapted to fit the groove side wall of the guide column groove body.

[0018] In another embodiment, the diaphragm assembly includes a third diaphragm and a guide column slot structure; the guide column slot structure is adapted to be embedded in the center position of the third diaphragm; the water inlet hole is located at the center position of the guide column slot structure; the guide column slot structure is connected to the pressure relief hole; the pressure hole gasket can be moved up and down relative to the valve cover to be embedded in the guide column slot structure and pressed on the water inlet hole; the lower end of the valve cover is in contact with and pressed on the upper end of the anti-water hammer spring.

[0019] Furthermore, the pressure hole gasket has a protrusion adapted to be embedded in the lower end of the anti-water hammer spring.

[0020] Compared with the existing technology, the utility model has the following advantages:

[0021] The utility model combines a solenoid valve component, a diaphragm component and an elastic pressure hole component, installs the elastic pressure hole component on the water inlet hole, connects the upper end of the elastic pressure hole component to the solenoid valve component, and presses the lower end of the elastic pressure hole component on the water inlet hole and can move up and down relative to the water inlet hole. When the solenoid valve component opens, the elastic pressure hole component and the water inlet pressure form two forces to resist the impact, slow down the opening of the water inlet hole, and reduce the opening degree of the water inlet hole to a minimum, so that the water inflow of the water inlet hole is small. In this way, when the solenoid valve component closes the valve, the elastic pressure hole component effectively slows down the water inlet pressure when adjusting and controlling the solenoid valve component to close the valve, better resists the instantaneous impact of the water inlet pressure, has strong pressure resistance, and thus achieves the effect of soft and buffered valve closing, thereby reducing the phenomenon of water hammer (water hammer), extending the service life of the structure, and better applying it to the promotion of the field of solenoid valves. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Figure 1 It is a schematic diagram of the exploded three-dimensional structure of the electromagnetic valve structure with good anti-water hammer effect in Example 1 of the utility model.

[0024] Figure 2 It is a structural schematic diagram of the electromagnetic valve structure with good anti-water hammer effect in Example 1 of the utility model when it is in a valve closing state.

[0025] Figure 3 It is a structural schematic diagram of the electromagnetic valve structure with good anti-water hammer effect in Example 1 of the utility model when it is in the valve open state.

[0026] Figure 4 It is a partially exploded three-dimensional structural schematic diagram of a solenoid valve structure with good anti-water hammer effect in Example 2 of the utility model.

[0027] Figure 5 It is a partially exploded three-dimensional structural schematic diagram of a solenoid valve structure with good anti-water hammer effect in Example 3 of the utility model.

[0028] Figure 6 It is a schematic cross-sectional view of a solenoid valve structure having good anti-water hammer effect according to Embodiment 4 of the present utility model.

[0029] The figure includes:

[0030] Solenoid valve assembly 1, valve seat 11, flow channel 111, valve cover 12, pressure relief hole 121, solenoid valve body 13, valve core 131, diaphragm assembly 2, first diaphragm 21, first pilot column 22, guide column cavity 221, second diaphragm 23, second pilot column 24, guide column groove body 25, water inlet pipe body 26, return spring 27, positioning guide rod 271, third diaphragm 28, guide column groove body structure 29, water inlet hole 210, elastic pressure hole assembly 3, anti-water hammer spring 31, guide rod 311, pressure hole gasket 32, protrusion 321. DETAILED DESCRIPTION

[0031] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0032] Embodiment 1:

[0033] like Figures 1 to 3 As shown, a solenoid valve structure with good anti-water hammer effect includes a solenoid valve assembly 1, a diaphragm assembly 2 and an elastic pressure hole assembly 3. Among them, the solenoid valve assembly 1 includes a valve seat 11, a valve cover 12 and a solenoid valve body 13; the solenoid valve body 13 has a valve core 131 that can move up and down; the diaphragm assembly 2 is adapted and embedded in the upper end of the valve seat 11; the valve cover 12 is adapted and covered in the upper end of the valve seat 11 and presses and fixes the diaphragm assembly 2; the solenoid valve body 13 presses the valve cover 12 to connect with the valve seat 11; the valve cover 12 has a pressure relief hole 121 closed by the valve core 131. The diaphragm assembly 2 is installed on the solenoid valve assembly 1; the diaphragm assembly 2 has a water inlet hole 210; the elastic pressure hole assembly 3 is placed on the water inlet hole 210; the upper end of the elastic pressure hole assembly 3 is connected to the solenoid valve assembly 1; the lower end of the elastic pressure hole assembly 3 is pressed on the water inlet hole 210 and can move up and down relative to the water inlet hole 210.

[0034] The solenoid valve structure with good anti-water hammer effect is provided by combining the solenoid valve assembly 1, the diaphragm assembly 2 and the elastic pressure hole assembly 3, the elastic pressure hole assembly 3 is installed on the water inlet hole 210, the upper end of the elastic pressure hole assembly 3 is connected to the solenoid valve assembly 1, and the lower end thereof is pressed on the water inlet hole 210 and can move up and down relative to the water inlet hole 210. Specifically, according to the expansion and contraction characteristics of the elastic pressure hole assembly 3, when the solenoid valve assembly 1 opens the valve, the solenoid valve body 13 is energized to drive the valve core 131 to move upward, the pressure relief hole 121 is opened, and the upper cavity and the lower cavity of the diaphragm assembly 2 form a pressure that is lower at the top and higher at the bottom. In this case, the water inlet pressure pushes the diaphragm assembly 2 to move upward, and the elastic pressure hole assembly 3 is squeezed upward by the diaphragm assembly 2. Push, the elastic force of the elastic pressure hole component 3 increases during the compression process, forming two forces to resist the water inlet pressure, slowing down the opening of the water inlet hole 210, and reducing the opening degree of the water inlet hole 210 to a minimum, thereby reducing the amount of water entering the water inlet hole 210; when the solenoid valve component 1 is closed, the solenoid valve body 13 is powered off, the valve core 131 moves downward, closing the pressure relief hole 121, and the upper and lower chambers of the diaphragm component 2 form a high upper pressure and a low lower lower pressure, the diaphragm component 2 resets and moves downward, and the elastic pressure hole component 3 moves downward with the diaphragm component 2, and the elastic force of the elastic pressure hole component 3 is also released, quickly resetting and reaching a completely closed valve state. In the process of closing the valve, the water inlet pressure is gentle, and the valve closing is buffered, thereby reducing the water hammer phenomenon. With such arrangement, when the solenoid valve assembly 1 opens the valve, the elastic pressure hole assembly 3 and the water inlet pressure form two forces to resist the impact, thereby slowing down the opening of the water inlet hole 210, and reducing the opening degree of the water inlet hole 210 to a minimum, thereby reducing the amount of water entering the water inlet hole 210. In this way, when the solenoid valve assembly 1 closes the valve, the elastic pressure hole assembly 3 effectively slows down the water inlet pressure when adjusting and controlling the solenoid valve assembly 1 when closing the valve, better resists the instantaneous impact of the water inlet pressure, has a strong pressure resistance, thereby achieving a soft and buffered valve closing effect, thereby reducing the phenomenon of water hammer (water hammer), extending the service life of the structure, and better promoting its application in the field of solenoid valves.

[0035] Specifically, the elastic pressure hole assembly 3 includes an anti-water hammer spring 31 and a pressure hole gasket 32; the upper end of the anti-water hammer spring 31 is connected to the solenoid valve assembly 1; the pressure hole gasket 32 ​​is connected to the lower end of the anti-water hammer spring 31 and presses on the water inlet hole 210, and can move up and down relative to the water inlet hole 210. An elastic pressure hole assembly 3 is formed by arranging an anti-water hammer spring 31 and a pressure hole gasket 32. When the solenoid valve assembly 1 opens the valve, the solenoid valve body 13 is energized to drive the valve core 131 to move upward, the pressure relief hole 121 is opened, and the upper and lower chambers of the diaphragm assembly 2 form a pressure that is lower at the top and higher at the bottom. In this case, the water inlet pressure pushes the diaphragm assembly 2 to move upward, and the anti-water hammer spring 31 and the pressure hole gasket 32 ​​are simultaneously pushed upward by the diaphragm assembly 2. The elastic force of the anti-water hammer spring 31 increases during the compression process, and two forces are formed to resist the water inlet pressure. The pressure hole gasket 32 ​​slows down the opening of the water inlet hole 210, and the opening degree of the water inlet hole 210 is reduced to a minimum, thereby allowing the water inlet to flow in. The amount of water entering the hole 210 is small; when the solenoid valve assembly 1 closes the valve, the solenoid valve body 13 is powered off, the valve core 131 moves downward, closing the pressure relief hole 121, and the upper and lower chambers of the diaphragm assembly 2 form a high upper pressure and a low lower lower pressure. The diaphragm assembly 2 resets and moves downward. The anti-water hammer spring 31 and the pressure hole gasket 32 ​​move downward with the diaphragm assembly 2 at the same time. The elastic force of the anti-water hammer spring 31 is also released and resets quickly. The pressure hole gasket 32 ​​resets and presses on the water inlet hole 210, and reaches a completely closed valve state. In the process of closing the valve, under the joint action of the anti-water hammer spring 31 and the pressure hole gasket 32, the water inlet pressure is gentle, and the valve closing is buffered, thereby reducing the water hammer (water hammer) phenomenon. With such arrangement, when the solenoid valve assembly 1 opens the valve, the elastic pressure hole assembly 3 and the water inlet pressure form two forces to resist the impact, thereby slowing down the opening of the water inlet hole 210, and reducing the opening degree of the water inlet hole 210 to a minimum, thereby reducing the amount of water entering the water inlet hole 210. In this way, when the solenoid valve assembly 1 closes the valve, the elastic pressure hole assembly 3 effectively slows down the water inlet pressure when adjusting and controlling the solenoid valve assembly 1 when closing the valve, better resists the instantaneous impact of the water inlet pressure, has a strong pressure resistance, thereby achieving a soft and buffered valve closing effect, thereby reducing the phenomenon of water hammer (water hammer), extending the service life of the structure, and better promoting its application in the field of solenoid valves.

[0036] In this embodiment, the diaphragm assembly 2 includes a first diaphragm 21 and a first pilot column 22 adapted to be mounted at the center of the first diaphragm 21; the first diaphragm 21 is adapted to be embedded in the upper end of the valve seat 11; the water inlet hole 210 is opened at the lower end of the first pilot column 22; the upper end of the first pilot column 22 has a guide column cavity 221 connecting the water inlet hole 210 and the pressure relief hole 121; the pressure hole gasket 32 ​​is embedded in the guide column cavity 221 and pressed on the water inlet hole 210; the upper end of the anti-water hammer spring 31 is connected to the valve cover 12; the lower end of the anti-water hammer spring 31 is embedded in the guide column cavity 221 and connected to the pressure hole gasket 32. The diaphragm assembly 2 is formed by arranging the first diaphragm 21 and the first pilot column 22, and the first pilot column 22 can move upward or downward with the first diaphragm 21 when opening or closing the valve. The guide column cavity 221 is used to achieve stable installation of the anti-water hammer spring 31 and the pressure hole gasket 32. The water inlet hole 210 is used to let water in from the middle of the diaphragm assembly 2. The anti-water hammer spring 31 and the pressure hole gasket 32 ​​are used. When opening the valve, the opening degree of the water inlet hole 210 is adjusted to a minimum, so that the amount of water entering the water inlet hole 210 is small. In this way, when closing the valve, the water inlet pressure of the solenoid valve assembly 1 when closing the valve can be effectively slowed down, and the instantaneous impact of the water inlet pressure can be better resisted. The pressure resistance is strong, thereby achieving a soft and buffered valve closing effect, thereby reducing the water hammer (water hammer) phenomenon, extending the service life of the structure, and better application in the promotion of the solenoid valve field.

[0037] Preferably, the lower end of the anti-water hammer spring 31 has a guide rod 311 extending into the water inlet hole 210; the hole-pressing gasket 32 ​​is sleeved on the guide rod 311. The guide rod 311 is arranged in this way, so that the hole-pressing gasket 32 ​​can be quickly connected to the lower end of the anti-water hammer spring 31, and the structure is simple and the connection is convenient. The hole-pressing gasket 32 ​​is cylindrical, with a simple structure, and is convenient for pressing the water inlet hole 210. Of course, the shape of the hole-pressing gasket 32 ​​is not limited to, and can also be other shapes, such as a square column, a cone, etc., which can be reasonably designed according to needs.

[0038] The principle of the solenoid valve structure with good anti-water hammer effect is as follows:

[0039] When the solenoid valve assembly 1 opens, the solenoid valve body 13 is energized to drive the valve core 131 to move upward, the pressure relief hole 121 is opened, and the upper and lower chambers of the diaphragm assembly 2 form a pressure that is lower at the top and higher at the bottom. In this case, the water inlet pressure pushes the diaphragm assembly 2 to move upward, and the anti-water hammer spring 31 and the pressure hole gasket 32 ​​are simultaneously pushed upward by the diaphragm assembly 2. The elastic force of the anti-water hammer spring 31 increases during the compression process, and two forces are formed to resist the water inlet pressure. The pressure hole gasket 32 ​​slows down the opening of the water inlet hole 210, and the opening degree of the water inlet hole 210 is reduced to a minimum, thereby reducing the amount of water entering the water inlet hole 210.

[0040] When the solenoid valve assembly 1 closes the valve, the solenoid valve body 13 is powered off, the valve core 131 moves downward, closing the pressure relief hole 121, and the upper and lower chambers of the diaphragm assembly 2 form a high upper pressure and a low lower lower pressure. The diaphragm assembly 2 resets and moves downward. The anti-water hammer spring 31 and the pressure hole gasket 32 ​​move downward with the diaphragm assembly 2 at the same time. The elastic force of the anti-water hammer spring 31 is also released and resets quickly. The pressure hole gasket 32 ​​resets and presses on the water inlet hole 210, and reaches a completely closed state. In the process of closing the valve, under the joint action of the anti-water hammer spring 31 and the pressure hole gasket 32, the water inlet pressure is gentle, and the valve is closed buffered, thereby reducing the water hammer (water hammer) phenomenon.

[0041] Embodiment 2:

[0042] In Example 2, Figure 1 and Figure 4 As shown, the structure of the electromagnetic valve with good anti-water hammer effect of this embodiment is basically the same as that of embodiment 1, except that the diaphragm assembly 2 and the elastic pressure hole assembly 3 are improved, the diaphragm assembly 2 includes a second diaphragm 23, a second pilot column 24, a guide column slot body 25 and a water inlet pipe body 26; the guide column slot body 25 is connected to the upper end of the second pilot column 24; the second pilot column 24 is adaptively mounted on the center position of the lower end of the second diaphragm 23; the guide column slot body 25 is adaptively mounted in the upper end of the second diaphragm 23; the guide column slot body 25 is connected to the pressure relief hole 121; the water inlet pipe body 26 is connected to the lower end of the guide column slot body 25 and is located at the second pilot column 24. The second guide column 24 is provided on one side of the second guide column 24, and is adapted to pass through the second diaphragm 23; the water inlet hole 210 is provided on the water inlet pipe body 26 and is connected to the guide column slot body 25; the anti-water hammer spring 31 and the pressure hole gasket 32 ​​are sequentially embedded in the guide column slot body 25 from bottom to top corresponding to the position of the water inlet hole 210; the upper end of the anti-water hammer spring 31 is in contact with the valve cover 12; a reset spring 27 is connected between the guide column slot body 25 and the valve cover 12; the reset spring 27 has a positioning guide rod 271 that passes through the anti-water hammer spring 31 and is adapted to pass through the pressure hole gasket 32, and the lower end of the positioning guide rod 271 extends into the water inlet hole 210. The anti-water hammer spring 31 and the pressure hole gasket 32 ​​can be better positioned on the positioning guide rod 271.

[0043] This embodiment is implemented by the water inlet hole 210 to let water in from the side of the diaphragm assembly 2. The diaphragm assembly 2 is formed by setting the second diaphragm 23, the second pilot column 24, the guide column groove body 25 and the water inlet pipe body 26. The second pilot column 24, the guide column groove body 25 and the water inlet pipe body 26 can move upward or downward with the second diaphragm 23 when the valve is opened or closed. The anti-water hammer spring 31 and the pressure hole gasket 32 ​​are centrally arranged in the guide column groove body 25. When the valve is opened, the second pilot column 24, the guide column groove body 25 and the water inlet pipe body 26 can move upward with the second diaphragm 23 when the valve is opened. The reset spring 27 is compressed. At this time, the anti-water hammer spring 31 and the pressure hole gasket 32 ​​also move upward with the second diaphragm 23. Under the top pressure of the valve cover 12, the elastic force of the anti-water hammer spring 31 increases during the compression process, forming two forces to resist the water inlet pressure. The pressure hole gasket 32 ​​slows down the opening of the water inlet hole 210, and the water inlet hole The opening degree of 210 is reduced to a minimum, thereby reducing the amount of water entering the water inlet hole 210; in this way, when closing the valve, the reset spring 27 can reset the second diaphragm 23 quickly, and the anti-water hammer spring 31 and the pressure hole gasket 32 ​​also reset quickly, effectively reducing the water inlet pressure when the solenoid valve assembly 1 is closed, better resisting the instantaneous impact of the water inlet pressure, and having strong pressure resistance, thereby achieving a soft and buffered valve closing effect, thereby reducing the phenomenon of water hammer (water hammer), extending the service life of the structure, and better promoting its application in the field of solenoid valves.

[0044] The water inlet hole 210 is close to the groove side wall of the guide column groove body 25; the hole pressing gasket 32 ​​is a semi-cylindrical structure that fits the groove side wall of the guide column groove body 25, so that the water inlet hole 210 can be better pressed.

[0045] Embodiment 3:

[0046] In Example 3, Figure 1 and Figure 5As shown, the solenoid valve structure with good anti-water hammer effect of this embodiment is basically the same as that of Embodiment 1 and Embodiment 2, except that the diaphragm assembly 2 and the elastic pressure hole assembly 3 are improved, the diaphragm assembly 2 includes a third diaphragm 28 and a guide column slot structure 29; the guide column slot structure 29 is adapted to be embedded in the center position of the third diaphragm 28; the water inlet hole 210 is located at the center position of the guide column slot structure 29; the guide column slot structure 29 is connected with the pressure relief hole 121; the pressure hole gasket 32 ​​can be moved up and down relative to the valve cover 12, embedded in the guide column slot structure 29 and pressed on the water inlet hole 210; the lower end of the valve cover 12 contacts and presses on the upper end of the anti-water hammer spring 31; the anti-water hammer spring 31 is located above the guide column slot structure 29. This embodiment adopts the method of water inletting from the middle of the diaphragm assembly 2 through the water inlet hole 210, and forms the diaphragm assembly 2 by arranging the third diaphragm 28 and the guide column slot structure 29. The guide column slot structure 29 is similar to the combined structure formed by the second pilot column 24 and the guide column slot 25 of the embodiment 2. The guide column slot structure 29 can move upward or downward with the third diaphragm 28 when opening or closing the valve. The pressure hole gasket 32 ​​is centrally arranged in the guide column slot structure 29, and the anti-water hammer spring 31 is located above the guide column slot structure 29. When opening the valve, the guide column groove structure 29 can move upward with the third diaphragm 28 when opening the valve. At this time, the anti-water hammer spring 31 and the pressure hole gasket 32 ​​also move upward with the third diaphragm 28. Under the top pressure of the valve cover 12, the elastic force of the anti-water hammer spring 31 increases during the compression process, and forms two forces to resist the water inlet pressure. The pressure hole gasket 32 ​​slows down the opening of the water inlet hole 210, and the opening degree of the water inlet hole 210 is reduced to a minimum, thereby reducing the amount of water entering the water inlet hole 210; in this way, when closing the valve, the water inlet pressure of the solenoid valve assembly 1 when closing the valve can be effectively slowed down, and the instantaneous impact of the water inlet pressure can be better resisted. The pressure resistance is strong, thereby achieving a soft and buffered valve closing effect, thereby reducing the phenomenon of water hammer (water hammer), extending the service life of the structure, and better applying it to the promotion of the field of solenoid valves.

[0047] In order to make the connection between the hole-pressing gasket 32 ​​and the anti-water hammer spring 31 more stable and reliable, the hole-pressing gasket 32 ​​has a protrusion 321 adapted to be embedded in the lower end of the anti-water hammer spring 31. The protrusion 321 is provided to facilitate the connection stability between the hole-pressing gasket 32 ​​and the anti-water hammer spring 31.

[0048] Embodiment 4:

[0049] In Example 4, Figure 6As shown, the structure of the solenoid valve with good anti-water hammer effect in this embodiment is basically the same as that in Embodiment 2, except that the path communicating with the pressure relief hole 121 is different. In Embodiment 2, the pressure relief hole 121 can be communicated with the diaphragm assembly 2. In this embodiment, a flow channel 111 communicating with the pressure relief hole 121 is provided on the side of the valve seat 11 to achieve communication with the pressure relief hole 12.

[0050] In summary, the embodiments of the utility model provide a solenoid valve structure with good anti-water hammer effect, wherein the solenoid valve structure with good anti-water hammer effect utilizes the elastic pressure hole component 3 and the water inlet pressure to form two forces to resist the impact, slow down the opening of the water inlet hole 210, and reduce the opening degree of the water inlet hole 210 to a minimum, so that the water inflow of the water inlet hole 210 is small. In this way, when the solenoid valve component 1 is closed, the elastic pressure hole component 3 effectively slows down the water inlet pressure when the solenoid valve component 1 is closed, better resists the instantaneous impact of the water inlet pressure, and has strong pressure resistance, thereby achieving a soft and buffered valve closing effect, thereby reducing the phenomenon of water hammer (water hammer), extending the service life of the structure, and better applying it to the promotion of the field of solenoid valves.

[0051] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present application. These improvements and substitutions should also be regarded as the scope of protection of the present application.

Claims

1. A solenoid valve structure with good anti-water hammer effect, comprising a solenoid valve assembly; characterized in that: Also includes: A diaphragm assembly is mounted on the solenoid valve assembly; the diaphragm assembly has a water inlet hole; An elastic hole-pressing component is arranged on the water inlet hole; the upper end of the elastic hole-pressing component is connected to the solenoid valve component; the lower end of the elastic hole-pressing component is pressed on the water inlet hole and can move up and down relative to the water inlet hole.

2. The solenoid valve structure with good anti-water hammer effect according to claim 1 is characterized in that: The elastic hole-pressing assembly includes an anti-water hammer spring and a hole-pressing gasket; the upper end of the anti-water hammer spring is connected to the solenoid valve assembly; the hole-pressing gasket is connected to the lower end of the anti-water hammer spring and presses on the water inlet hole, and can move up and down relative to the water inlet hole.

3. The electromagnetic valve structure with good anti-water hammer effect according to claim 2 is characterized in that: The solenoid valve assembly includes a valve seat, a valve cover and a solenoid valve body; the solenoid valve body has a valve core that can move up and down; the diaphragm assembly is adapted and embedded in the upper end of the valve seat; the valve cover is adapted and covered in the upper end of the valve seat and presses and fixes the diaphragm assembly; the solenoid valve body presses the valve cover and is connected to the valve seat; the valve cover has a pressure relief hole closed by the valve core.

4. The electromagnetic valve structure with good anti-water hammer effect according to claim 3 is characterized in that: The diaphragm assembly comprises a first diaphragm and a first pilot column adapted to be mounted at the center of the first diaphragm; the first diaphragm is adapted to be embedded in the upper end of the valve seat; the water inlet hole is provided at the lower end of the first pilot column; the upper end of the first pilot column has a guide column cavity communicating with the water inlet hole and the pressure relief hole; The pressure hole gasket is embedded in the guide column cavity and pressed on the water inlet hole; the upper end of the anti-water hammer spring is connected to the valve cover; the lower end of the anti-water hammer spring is embedded in the guide column cavity and connected to the pressure hole gasket.

5. The electromagnetic valve structure with good anti-water hammer effect according to claim 4 is characterized in that: The lower end of the anti-water hammer spring is provided with a guide rod extending into the water inlet hole; the hole-pressing gasket is sleeved on the guide rod.

6. The electromagnetic valve structure with good anti-water hammer effect according to claim 4, characterized in that: The hole-pressing gasket is in a cylindrical shape.

7. The electromagnetic valve structure with good anti-water hammer effect according to claim 3 is characterized in that: The diaphragm assembly includes a second diaphragm, a second pilot column, a guide column slot body and a water inlet pipe body; the guide column slot body is connected to the upper end of the second pilot column; the second pilot column is adaptively mounted on the center position of the lower end of the second diaphragm; the guide column slot body is adaptively mounted in the upper end of the second diaphragm; the guide column slot body is connected to the pressure relief hole; the water inlet pipe body is connected to the lower end of the guide column slot body and is located on one side of the second pilot column, and is adaptively passed through the second diaphragm; the water inlet hole is provided on the water inlet pipe body and is connected to the guide column slot body; The anti-water hammer spring and the hole-pressing gasket are sequentially embedded in the guide column groove body from bottom to top corresponding to the position of the water inlet hole; the upper end of the anti-water hammer spring is in contact with the valve cover; A reset spring is connected between the guide column groove body and the valve cover; the reset spring has a positioning guide rod that passes through the anti-water hammer spring and is adapted to pass through the pressure hole gasket, and the lower end of the positioning guide rod extends into the water inlet hole.

8. The electromagnetic valve structure with good anti-water hammer effect according to claim 7, characterized in that: The water inlet hole is close to the groove side wall of the guide column groove body; the hole pressing gasket is a semi-cylindrical structure that is adapted to fit the groove side wall of the guide column groove body.

9. The electromagnetic valve structure with good anti-water hammer effect according to claim 3, characterized in that: The diaphragm assembly includes a third diaphragm and a guide column slot structure; the guide column slot structure is adapted to be embedded in the center position of the third diaphragm; the water inlet hole is located at the center position of the guide column slot structure; the guide column slot structure is connected to the pressure relief hole; the pressure hole gasket can be moved up and down relative to the valve cover and embedded in the guide column slot structure and pressed on the water inlet hole; the lower end of the valve cover is in contact and pressed on the upper end of the anti-water hammer spring.

10. The electromagnetic valve structure with good anti-water hammer effect according to claim 9, characterized in that: The pressure hole gasket is provided with a protrusion which is adapted to be embedded in the lower end of the anti-water hammer spring.

Images