CN218598865U - Fluid cavity structure and solenoid valve thereof - Google Patents
Fluid cavity structure and solenoid valve thereof Download PDFInfo
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- CN218598865U CN218598865U CN202223181834.6U CN202223181834U CN218598865U CN 218598865 U CN218598865 U CN 218598865U CN 202223181834 U CN202223181834 U CN 202223181834U CN 218598865 U CN218598865 U CN 218598865U
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Abstract
The utility model relates to a fluid cavity structure and solenoid valve thereof, set up exit device (14), drive arrangement (12) and case device (13) on the casing including casing (11) and lock, drive arrangement (12) drive case device (13) axial displacement open and close set up in valve body export (141) on exit device (14). The utility model discloses a set up the fluid cavity in valve outlet device, form palirrhea buffering cavity in microminiature solenoid valve exit to and set up the export of buffer pressure and water conservancy diversion, avoid the fluid to get into the inside storage of solenoid valve core and lead to breeding the bacterium and rustting.
Description
Technical Field
The utility model relates to a flow control microminiature solenoid valve constructional device, concretely relates to through the technical scheme of check valve structure in solenoid valve fluid outlet formation cushion chamber, especially a fluid cavity structures and solenoid valve thereof.
Background
The electromagnetic valve is widely used for controlling the on-off of fluid, and along with the development of intelligent household appliances, cleaning tools and the like, the microminiature electromagnetic valve is accepted by the industry for accurately controlling the flow. In some products, in the fluid structure on the coffee machine for example, because of placing some environmental factors such as, can lead to the fluid on the pipeline to remove, when using solenoid valve control fluid switch, the condition that has fluid backward flow to the solenoid valve appears, if the solenoid valve stores residual fluid for a long time, can cause solenoid valve core's pollution to rust, and the bacterium that stores water for a long time and produce smells and is unfavorable for food level safety moreover.
To above problem, the utility model discloses a following technical scheme improves.
Disclosure of Invention
The utility model aims at providing a fluid cavity structure and solenoid valve thereof, the disclosed technical scheme as follows:
a fluid cavity structure, the fluid cavity (20) is used for forming a reverse flow buffer cavity at the outlet of a microminiature solenoid valve and preventing fluid from entering the interior of a solenoid valve core and storing to cause the interior of the valve core to rust, and is characterized by comprising a cavity shell (21) and a valve membrane (22) made of flexible materials, wherein the cavity shell (21) comprises a valve body outlet (141), a cylindrical cavity shell (211) and an end surface flat plate (210) arranged around the outer edge of the end part of the cylindrical cavity shell (211);
wherein the valve diaphragm (22) has a fluid chamber (20) which is sealed with a cylindrical chamber housing (211) of the chamber housing (21) while sealing and opening the valve body outlet (141), and balances the pressure of the fluid flowing back from the valve body outlet (141).
Furthermore, a pressure balance port (212) is arranged on the side surface of one end of the cylindrical cavity shell (211) close to the valve body outlet (141). For example, the coffee machine and the like, the backflow fluid not only has gas, but also possibly water, is decompressed from the pressure balance port (23) and is isolated by the valve diaphragm (22) so as not to cause the fluid to enter the valve core to pollute or be stored for a long time to breed bacteria, and the use experience of the household appliance is influenced.
Furthermore, one side surface of the cylindrical cavity shell (211) provided with the pressure balance port (212) is a plane side surface (213), and the opposite side surface of the plane side surface (213) is an arc side surface (214), namely, the cylindrical cavity shell (211) is formed by a semi-square cylindrical cavity and a semi-circular cylindrical cavity which surround the end part of the valve body outlet (141).
Furthermore, the pressure balance port (212) is in a shape of a long strip and is arranged on the end side of the plane side surface (213). The main cavity space is a cavity at one side of the square cylinder, when the valve body is installed and the cavity at one side of the square cylinder lies down, the strip-shaped pressure balance port (212) at the cavity at one side of the square cylinder is at the lowest position, and liquid flows back into the valve and flows out of the balance port easily.
Further, the valve diaphragm (22) comprises a convex plug part (221) which is matched with the end face seal of the valve body outlet (141), and a plane part (222) which is matched with the valve core port seal. The plane part and the cavity shell (21) enclose a fluid cavity (20), and the plug part (221) is used for closing and opening the valve body outlet (141), so that the valve diaphragm (22) can simultaneously realize two functions of valve switch sealing and valve core isolation sealing.
Further, the plane part (222) is provided with a circle of arc-shaped concave surfaces (2221) around the periphery part of the plug part (221), and the arc-shaped concave surfaces (2221) form elastic buffering for the fluid cavity (20). The curved concave surface (2221) formed by the elastic valve diaphragm not only provides a spatial cushion when the plug portion (221) is moved, but also provides a spatial cushion when there is a liquid return pressure.
Furthermore, a groove (215) is arranged at the periphery of the port of the flow cavity housing (21) and is in sealing fit with a flange (223) arranged on the periphery of the valve membrane (22).
The utility model discloses still disclose a solenoid valve with fluid cavity buffer structure, solenoid valve (10) that are used for the fluid to close and open the transmission include casing (11) and lock set up export device (14), drive arrangement (12) and case device (13) on the casing, drive arrangement (12) drive case device (13) axial displacement open and close set up in valve body export (141) on export device (14), its characterized in that valve diaphragm (22) and export device (14) casing part that set up in case device (13) set up the fluid cavity (20) structure that forms the fluid buffering; the fluid cavity (20) is used for forming a reverse flow buffer cavity at the outlet of the micro-miniature electromagnetic valve and preventing fluid from entering the solenoid valve core for storage to cause rusting in the solenoid valve core.
The driving device (12) comprises a driving coil (121) and a coil support (122), the valve core device (13) comprises a static valve core (131), a movable valve core (132), a sliding rod (133) and a spring (134), the driving coil of the driving device (12) electromagnetically drives the movable valve core sliding rod (133) to axially move, the electrified electromagnetic spring is disconnected for resetting, and fluid transmission of sealing a valve membrane and opening a valve body outlet (141) is achieved through the sliding rod.
Further, the hollow cavity portion (2211) of the plug portion (221) of the valve diaphragm (22) is fitted to the end of the sliding rod (133) of the valve core device (13), and the sliding rod (133) moves the driving valve diaphragm (22) to seal and open the valve body outlet (141).
Furthermore, a buckle (216) and a fixing pin (217) are arranged on an end face flat plate (210) of the end face of the outlet device (14), the outlet device (14) is fixed on the end face of the shell (11) through the buckle (216) and the fixing pin (217), and the periphery of the plane part of the valve membrane (22) is pressed on the end face of the shell (11). The number of the buckles (216) and the number of the fixing pins (217) are not limited, and a preferred implementation structure is that two opposite angles are respectively arranged, namely, two buckles (216) and two fixing pins (217) are respectively arranged at four corners on the end surface flat plate (210) of the end surface of the outlet device (14), and the buckling corners are fixed.
According to the technical scheme, the utility model discloses following beneficial effect has: the utility model relates to a fluid cavity body structure and solenoid valve thereof through set up the fluid cavity in valve outlet device, forms palirrhea buffering cavity in microminiature solenoid valve exit to and set up the export of buffer pressure and water conservancy diversion, avoid the fluid to get into the inside storage of solenoid valve core and lead to breeding the bacterium and rustting.
Drawings
FIG. 1 is a schematic structural view of a solenoid valve according to a preferred embodiment of the present invention;
FIG. 2 is another schematic structural diagram of the solenoid valve according to the preferred embodiment of the present invention;
FIG. 3 is an exploded view of the solenoid valve according to the preferred embodiment of the present invention;
FIG. 4 is a schematic sectional view of the solenoid valve according to the preferred embodiment of the present invention;
FIG. 5 is a schematic structural view of the solenoid valve outlet device according to the preferred embodiment of the present invention;
FIG. 6 is a schematic bottom view of the solenoid valve outlet device according to the preferred embodiment of the present invention;
FIG. 7 is a schematic view of a valve diaphragm according to a preferred embodiment of the present invention;
FIG. 8 is a schematic bottom view of the valve diaphragm according to the preferred embodiment of the present invention;
FIG. 9 is an exploded view of the preferred embodiment of the present invention showing the combination of the outlet device and the valve diaphragm;
fig. 10 is an enlarged schematic view ofbase:Sub>A-base:Sub>A inbase:Sub>A cross-sectional view of the solenoid valve according to the preferred embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1 to 10, a fluid cavity 20 is used for forming a reverse flow buffer cavity at an outlet of a micro-miniature solenoid valve and preventing a fluid from entering the solenoid valve core for storage to cause rusting inside the solenoid valve core, and includes a cavity housing 21 and a valve membrane 22 made of a flexible material, wherein the cavity housing 21 includes a valve outlet 141, a cylindrical cavity housing 211 and an end surface plate 210 arranged around an outer edge of an end portion of the cylindrical cavity housing 211.
As shown in fig. 4 and 10, the valve diaphragm 22 has a fluid chamber 20 that is sealed with the cylindrical chamber housing 211 of the chamber housing 21 while sealing the valve body outlet 141 and opening, and balances the pressure of the fluid flowing back from the valve body outlet 141 when the valve diaphragm 22 opens the valve body outlet 141.
As shown in fig. 4 and 10, and fig. 6, one end side of the cylindrical chamber body housing 211 near the valve body outlet 141 is provided with a pressure equalizing port 212. The pressure balance port has the function of guiding liquid while balancing the pressure of the fluid cavity, for example, a coffee machine and the like, backflow fluid not only has gas, but also possibly water, is decompressed from the pressure balance port 23, and is isolated by the valve diaphragm 22 so as not to cause the fluid to enter the valve core to pollute or be stored for a long time to breed bacteria, thereby influencing the use experience of household appliances.
As shown in fig. 4 to 6, one side of the cylindrical chamber body 211 where the pressure balance port 212 is disposed is a flat side 213, and the opposite side of the flat side 213 is an arc side 214, i.e., the cylindrical chamber body 211 is configured to be composed of a semi-circular cylindrical cavity and a semi-circular cylindrical cavity surrounding the end of the valve body outlet 141. The pressure equalizing port 212 is elongated and is disposed on the end side of the planar side 213. The main cavity space is a square cylinder side cavity, when the valve body is installed and the square cylinder side cavity is laid down, the strip-shaped pressure balance port 212 of the square cylinder side cavity is at the lowest position, and when liquid flows back into the valve, the liquid is easy to flow out of the balance port 212.
As shown in fig. 7 and 8, the valve diaphragm 22 includes a projecting plug portion 221 adapted to seal against the end face of the valve body outlet 141, and a flat portion 222 adapted to seal against the poppet port. The planar portion and the chamber housing 21 enclose a fluid chamber 20, and the plug portion 221 is used for closing and opening the valve outlet 141, so that the valve diaphragm 22 can simultaneously realize two functions of valve opening and closing and valve core isolation sealing.
As shown in fig. 10, the flat portion 222 is provided with a ring of curved concave surfaces 2221 around the peripheral portion of the plug portion 221, and the curved concave surfaces 2221 form an elastic buffer against the fluid chamber 20. The curved concave surface 2221 formed by the elastic valve diaphragm provides a spatial cushion not only when the plunger portion 221 is moved but also when a liquid reflux pressure is generated.
As shown in fig. 5 to 8, and 9, a groove 215 is provided around the periphery of the port of the flow chamber housing 21 in sealing engagement with a flange 223 provided around the periphery of the valve diaphragm 22.
As shown in fig. 1 to 3, the present invention further discloses a solenoid valve having a fluid chamber buffer structure, the solenoid valve 10 for fluid closing and opening transmission includes a housing 11, an outlet device 14, a driving device 12, and a valve core device 13, the outlet device 14, the driving device 12 drives the valve core device 13 to move axially to open and close a valve outlet 141 disposed on the outlet device 14, and a valve diaphragm 22 disposed in the valve core device 13 and a housing portion of the outlet device 14 are disposed to form a fluid chamber 20 structure for fluid buffering; the fluid cavity 20 is used for a buffer flow guide cavity which forms a reverse flow buffer cavity at the outlet of the micro-miniature electromagnetic valve and prevents the fluid from entering the solenoid valve core for storage to cause rusting inside the valve core. In both of the solenoid valve embodiments shown in fig. 1 and 2, the directional valve body outlet 141 is not shown.
As shown in fig. 3, the driving device 12 includes a driving coil 121 and a coil support 122, the valve core device 13 includes a static valve core 131, a dynamic valve core 132, a sliding rod 133 and a spring 134, the driving coil of the driving device 12 electromagnetically drives the dynamic valve core sliding rod 133 to axially move, the electrified electromagnetic spring is disconnected for resetting, and fluid transmission of pushing the valve membrane to seal and opening the valve body outlet 141 by the sliding rod is realized.
As shown in fig. 4, 8 and 10, the hollow cavity portion 2211 of the plug portion 221 of the valve diaphragm 22 is fitted to the end of the stem 133 of the valve plug assembly 13, and the stem 133 moves the driver valve diaphragm 22 to seal and unseal the valve body outlet 141.
As shown in fig. 5 and 6, the end surface plate 210 of the end surface of the outlet device 14 is provided with a snap 216 and a fixing pin 217, the outlet device 14 is fixed to the end surface of the housing 11 by the snap 216 and the fixing pin 217, and the periphery of the flat surface portion of the valve diaphragm 22 is pressed against the end surface of the housing 11. The number of the buckles 216 and the fixing pins 217 is not limited, and a preferred embodiment has two buckles 216 and two fixing pins 217 at two opposite corners, that is, two buckles 216 and two fixing pins 217 at four corners of the end plate 210 on the end surface of the outlet device 14 are provided to fix the buckling corners.
The above is one of the embodiments of the present invention. Furthermore, it should be noted that all equivalent or simple changes made by the structures, characteristics and principles described in the patent conception are included in the protection scope of the patent.
Claims (10)
1. A fluid cavity structure is characterized by comprising a cavity shell (21) and a valve diaphragm (22) made of flexible materials, wherein the cavity shell (21) comprises a valve body outlet (141), a cylindrical cavity shell (211) and an end surface flat plate (210) arranged around the outer edge of the end part of the cylindrical cavity shell (211);
wherein the valve membrane (22) has a fluid chamber (20) which can seal and close and open the valve body outlet (141) and form a seal with the cylindrical chamber housing (211) of the chamber housing (21), and the pressure of the fluid which flows back from the valve body outlet (141) is balanced.
2. A fluid chamber structure as claimed in claim 1, wherein the cylindrical chamber housing (211) is provided with a pressure equalizing port (212) at a side thereof adjacent to the outlet (141) of the valve body.
3. A fluid chamber body structure according to claim 1, wherein the side of the cylindrical chamber body housing (211) where the pressure equalizing port (212) is provided is a flat side (213) and the opposite side of the flat side (213) is an arc side (214), i.e. the cylindrical chamber body housing (211) is configured to be composed of a half-square cylindrical cavity and a half-circular cylindrical cavity structure surrounding the end of the valve body outlet (141).
4. A fluid chamber structure as claimed in claim 3, wherein said pressure equalizing port (212) is elongated to fit on the end side of said planar side (213).
5. A fluid chamber structure as claimed in claim 1, wherein said valve diaphragm (22) includes a projecting plug portion (221) adapted to seal against the end face of the valve body outlet (141), and a flat portion (222) adapted to seal against the valve spool port.
6. A fluid chamber body structure as claimed in claim 5, wherein said flat surface portion (222) is provided with a circle of arcuate concave surfaces (2221) around the peripheral portion of the plug portion (221), said arcuate concave surfaces (2221) being elastically cushioned against said fluid chamber body (20).
7. A fluid chamber structure as claimed in claim 1, wherein a recess (215) is provided around the periphery of the port of said chamber housing (21) for sealing engagement with a flange (223) provided around the periphery of said valve diaphragm (22).
8. A solenoid valve having a fluid chamber buffer structure, comprising a housing (11), an outlet device (14) snap-fitted on the housing, a driving device (12), and a valve core device (13), wherein the driving device (12) drives the valve core device (13) to axially move to open and close a valve outlet (141) provided on the outlet device (14), characterized in that a valve membrane (22) provided in the valve core device (13) and a housing portion of the outlet device (14) are provided to form the fluid chamber (20) structure according to any one of claims 1 to 7.
9. The solenoid valve with fluid chamber cushion structure of claim 8, wherein the hollow chamber portion (2211) of the plug portion (221) of the valve diaphragm (22) is fitted to the end of the sliding rod (133) of the valve cartridge device (13), the sliding rod (133) moving the driven valve diaphragm (22) to seal and open the valve body outlet (141).
10. The electromagnetic valve with the fluid chamber buffer structure as claimed in claim 8, characterized in that the end surface plate (210) of the end surface of the outlet device (14) is provided with a buckle (216) and a fixed pin (217), the outlet device (14) is fixed on the end surface of the housing (11) through the buckle (216) and the fixed pin (217), and the periphery of the plane part of the valve membrane (22) is pressed against the end surface of the housing (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223181834.6U CN218598865U (en) | 2022-11-30 | 2022-11-30 | Fluid cavity structure and solenoid valve thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223181834.6U CN218598865U (en) | 2022-11-30 | 2022-11-30 | Fluid cavity structure and solenoid valve thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218598865U true CN218598865U (en) | 2023-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223181834.6U Active CN218598865U (en) | 2022-11-30 | 2022-11-30 | Fluid cavity structure and solenoid valve thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218598865U (en) |
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- 2022-11-30 CN CN202223181834.6U patent/CN218598865U/en active Active
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