CN215568217U - Boiled water solenoid valve capable of preventing countercurrent - Google Patents
Boiled water solenoid valve capable of preventing countercurrent Download PDFInfo
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- CN215568217U CN215568217U CN202122073240.2U CN202122073240U CN215568217U CN 215568217 U CN215568217 U CN 215568217U CN 202122073240 U CN202122073240 U CN 202122073240U CN 215568217 U CN215568217 U CN 215568217U
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Abstract
A boiled water electromagnetic valve capable of preventing countercurrent belongs to the technical field of electromagnetic valves and comprises a valve seat system, a valve plate sealing gasket system and a check valve system; the valve seat system comprises a threaded joint A, a water inlet filter screen, a sealing ring A, a valve seat main body, a sealing ring B and a threaded joint B; a water inlet cavity is formed in the right side of the valve seat main body, and a water outlet cavity is formed in the left side of the valve seat main body; the check valve system is arranged in the threaded connector B and comprises a check valve sealing gasket, a sealing gasket fixing seat, a check valve spring and a check valve sleeve, and the check valve sealing gasket comprises a sealing gasket main body and a raised head; the sealing gasket fixing seat comprises a circular fixing seat main body and 3 arc-shaped inserting pieces; the non-return valve sleeve comprises a non-return valve sleeve base plate, a cylindrical wall and a cylinder body, the non-return valve sleeve base plate is arranged on the left side of the non-return valve sleeve, and the periphery of the non-return valve sleeve base plate is connected with the cylindrical wall. The utility model has the beneficial effects that: preventing reverse flow.
Description
Technical Field
The utility model relates to a boiling water electromagnetic valve, in particular to a boiling water electromagnetic valve capable of preventing backflow, and belongs to the technical field of electromagnetic valves.
Background
In a water supply system, a boiling water electromagnetic valve is usually installed, and when the water supply system is electrified, a water outlet channel of the boiling water electromagnetic valve can be automatically opened to carry out normal water supply. However, in the actual water supply process, the negative pressure state of the related pipeline can be caused due to the water leakage or insufficient water supply of the water supply system, the siphon backflow of the stored water in the water outlet direction and the entering of the pipeline in the water inlet direction can be caused, and in the actual use, such as in washing equipment, the backflow of the sewage with the detergent can be caused, and the pollution of the water supply system can be caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of water backflow in the prior art, and provides a boiled water electromagnetic valve capable of preventing backflow, so that the backflow can be prevented.
In order to achieve the aim, the utility model adopts the technical scheme that: a boiled water solenoid valve capable of preventing countercurrent comprises a valve seat system and a valve plate sealing pad system, wherein the valve seat system comprises a threaded connector A, a water inlet filtering net cover, a sealing ring A, a valve seat main body, a sealing ring B and a threaded connector B which are sequentially arranged from right to left, and the water inlet filtering net cover filters impurities; the center of the threaded joint A is a water inlet channel, the center of the threaded joint B is a water outlet channel, a water inlet cavity is formed in the right side of the valve seat body, a water outlet cavity is formed in the left side of the valve seat body, and a water passing channel is formed in the upper end between the water inlet cavity and the water outlet cavity;
the check valve sealing gasket is of an integral structure and comprises a sealing gasket main body on the left side and a raised head on the right side, the sealing gasket main body is of a circular ring shape, and the center of the raised head is provided with a water through hole; the sealing gasket fixing seat is of an integrated structure and comprises a circular ring-shaped fixing seat main body on the right side and 3 arc-shaped inserting pieces on the left side; the check valve sealing gasket is arranged on the right side of the fixing seat main body, and the check valve sealing gasket and the fixing seat main body are attached and fixedly connected with each other;
the check valve sleeve is of an integrated structure and comprises a check valve sleeve chassis, a cylindrical wall and a cylinder body, wherein the check valve sleeve chassis is arranged on the left side of the check valve sleeve, the periphery of the check valve sleeve chassis is connected with the cylindrical wall, and the middle of the chassis is not provided with holes; the cylinder is arranged on the right side of the center of the chassis of the check valve sleeve, the left end of the cylinder is connected with the chassis, and the center hole of the cylinder is a blind hole and is opened rightwards;
the right side of the base plate of the check valve sleeve, the space between the cylinder wall and the cylinder body are inner cavities of the check valve sleeve, and the check valve spring is sleeved on the cylinder body and is positioned in the inner cavity of the check valve sleeve; 3 circular arc-shaped inserting pieces are inserted into the inner cavity of the check valve sleeve, the outer diameter of a circle formed by the 3 circular arc-shaped inserting pieces is matched with the inner diameter of the check valve sleeve, and the 3 circular arc-shaped inserting pieces are inserted into the inner wall of the main body of the check valve sleeve;
when water is normally supplied, the pipeline on the water inlet side is in positive pressure, the check valve spring is not compressed and recovers to the normal state, the check valve sleeve is separated from the sealing gasket fixing seat under the action of the restoring force of the check valve spring, and water flows through the water inlet channel, the water inlet cavity, the water passing channel, the water outlet cavity and the water through hole of the check valve sealing gasket and flows through a gap between the check valve sleeve and the sealing gasket fixing seat to enter the water outlet channel;
when the water inlet side pipeline generates negative pressure, namely the water outlet channel generates reverse positive pressure relative to the water inlet channel, under the action of the reverse positive pressure, the check valve sleeve adsorbs and compresses the check valve spring rightwards, the right end surface of the cylinder of the check valve sleeve touches the inner surface of the check valve sealing gasket and is tightly attached to the inner surface of the check valve sealing gasket, and the water through hole at the right end of the check valve sealing gasket is sealed, so that water flow of the water inlet side pipeline cannot flow to the water outlet channel through the water through hole, the negative pressure damage is achieved, and water can only flow out in the water outlet direction and cannot flow back.
3 the inserted sheets are evenly distributed on the left side of the fixing seat main body.
The fixing base main part is provided with bellied external screw thread right, sealed pad main part left side be provided with the external screw thread assorted internal thread of fixing base main part, the sealed pad of check valve passes through internal thread and external screw thread threaded connection of each other with the fixing base main part.
The threaded joint A and the threaded joint B are copper joints, so that the strength of the product is improved, and the service life of the product is prolonged.
The threaded connector A is connected with the right end of the valve seat body through a screw, the threaded connector B is connected with the left end of the valve seat body through a screw, and the screw is an M4X12 pan head cross self-tapping screw.
The valve plate sealing gasket system comprises a protective cover, a plastic-coated wire package, a self-tapping screw, a pressing seat, a valve core spring, a valve core, a sealing head spring, a valve plate and a valve plate sealing gasket; the plastic-coated wire package is arranged in the protective cover, and the bottom of the plastic-coated wire package is fixedly connected with the valve seat main body through self-tapping screws; the pressing seat is of an integrated structure and comprises an upper cylinder and a lower base, the cylinder is downward opened, and an inner cavity of the cylinder is communicated with an inner cavity of the base;
the valve core spring is arranged at the upper part of the inner cavity of the cylinder, the valve core is arranged at the lower part of the inner cavity of the cylinder, and the lower part of the valve core extends downwards to the inner cavity of the base; the sealing head spring is sleeved on the periphery of the lower part of the valve core, the sealing head spring and the valve plate sealing gasket are arranged in the circular recess at the upper part of the valve seat main body, and the valve core sealing head at the lower end of the valve core extends downwards to a water passing channel of the valve seat main body to block the circulation of water; when the solenoid is electrified, the adsorption valve core is upward, the sealing head at the lower end of the valve plate sealing gasket is separated from the water passing channel of the valve seat main body, and water passes through the water passing channel.
The upper top of the cylinder body of the pressure seat is provided with a downward cylindrical raised head, the upper end of the valve core spring is sleeved on the cylindrical raised head, and the lower end of the valve core spring is sleeved on the upper end of the valve core.
The valve plate sealing gasket system also comprises a valve plate sealing gasket system peripheral structure, the valve plate sealing gasket system peripheral structure comprises a framework, a framework fixing plate, a sleeve A and a sleeve B, the framework is arranged in the plastic-coated wire package, the framework fixing plate is arranged below the framework and above the valve seat, the framework fixing plate is fixedly connected with the upper end face of the valve seat, and the bottom of the framework is fixedly connected with the framework fixing plate; the sleeve A is arranged at the upper part between the framework and the cylinder of the pressing seat, and the sleeve B is arranged at the lower part between the framework and the cylinder of the pressing seat.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the structure is reasonable in design, water can only flow downstream and cannot flow back, and water supply safety is ensured;
(2) the threaded joint is a copper joint, so that the strength of the product is improved, and the service life of the product is prolonged.
Drawings
FIG. 1 is a schematic diagram of: the utility model is an exploded view;
FIG. 2 is a diagram of: the check valve system is exploded and enlarged;
FIG. 3 is a diagram of: the front view of the utility model;
FIG. 4 is a diagram of: the top view of the utility model;
FIG. 5 is a diagram of: the utility model left view;
FIG. 6 is a diagram of: the utility model is a perspective view;
FIG. 7 is a diagram of: FIG. 4 is an enlarged sectional view A-A;
FIG. 8 is a diagram of: fig. 7 is an enlarged view of a portion a.
Description of reference numerals: the water inlet filter screen comprises a threaded connector A1, a water inlet filter screen cover 2, a sealing ring A3, a valve seat main body 4, a sealing ring B5, a threaded connector B6, a check valve sealing gasket 7, a sealing gasket main body 701, a raised head 702, a water through hole 703, a sealing gasket fixing seat 8, a fixing seat main body 801, an insertion sheet 802, a check valve spring 9, a check valve sleeve 10, a check valve sleeve chassis 1001, a cylindrical wall 1002, a cylinder 1003, a protective cover 11, a plastic-coated wire coil 12, a self-tapping screw 13, a pressing seat 14, a valve core spring 15, a valve core 16, a sealing head spring 17, a valve sheet 18, a valve sheet sealing gasket 19, a framework 20, a framework fixing plate 21, a sleeve A22 and a sleeve B23.
Detailed Description
The utility model is further described with reference to the following figures and specific examples, which are not intended to be limiting.
As shown in fig. 1 to 8, the water boiling solenoid valve capable of preventing backflow comprises a valve seat system and a valve plate sealing gasket 19 system, wherein the valve seat system comprises a threaded connector A1, a water inlet filter screen 2, a sealing ring A3, a valve seat main body 4, a sealing ring B5 and a threaded connector B6 which are sequentially arranged from right to left, and the water inlet filter screen 2 filters impurities; the center of the threaded joint A1 is a water inlet channel, the center of the threaded joint B6 is a water outlet channel, the right side of the valve seat main body 4 is provided with a water inlet cavity, the left side of the valve seat main body 4 is provided with a water outlet cavity, and the upper end between the water inlet cavity and the water outlet cavity is provided with a water passing channel;
as shown in fig. 1 and 2, the sealing gasket further comprises a check valve system, the check valve system is arranged in a threaded joint B6, the check valve system comprises a check valve sealing gasket 7, a sealing gasket fixing seat 8, a check valve spring 9 and a check valve sleeve 10, the check valve sealing gasket 7 is of an integral structure and comprises a sealing gasket main body 701 on the left side and a raised head 702 on the right side, the sealing gasket main body 701 is circular, and a water through hole 703 is formed in the center of the raised head 702; the sealing gasket fixing seat 8 is of an integral structure and comprises a circular ring-shaped fixing seat main body 801 on the right side and 3 arc-shaped inserting pieces 802 on the left side; the check valve sealing gasket 7 is arranged on the right side of the fixing seat body 801, and the check valve sealing gasket 7 and the fixing seat body 801 are attached and fixedly connected with each other;
the check valve sleeve 10 is of an integral structure and comprises a check valve sleeve chassis 1001, a cylindrical wall 1002 and a cylinder 1003, wherein the check valve sleeve chassis 1001 is arranged on the left side of the check valve sleeve 10, the periphery of the check valve sleeve chassis 1001 is connected with the cylindrical wall 1002, and the middle of the chassis is not provided with holes; the cylinder 1003 is arranged on the right side of the center of the check valve housing chassis 1001, the left end of the cylinder 1003 is connected with the chassis, and a center hole of the cylinder 1003 is a blind hole and is opened to the right;
an inner cavity of the check valve sleeve 10 is formed between the right side of the check valve sleeve chassis 1001 and the cylinder wall 1002 and the cylinder 1003, and the check valve spring 9 is sleeved on the cylinder 1003 and is positioned in the inner cavity of the check valve sleeve 10; the 3 arc-shaped inserting pieces 802 are inserted into the inner cavity of the check valve sleeve 10, the outer diameter of a circle formed by the 3 arc-shaped inserting pieces 802 is matched with the inner diameter of the check valve sleeve 10, and the 3 arc-shaped inserting pieces 802 are inserted into the inner wall of the main body of the check valve sleeve 10;
when water is normally supplied, the pipeline on the water inlet side is in positive pressure, the check valve spring 9 is not compressed and returns to the normal state, the check valve sleeve 10 is separated from the sealing gasket fixing seat 8 under the action of the restoring force of the check valve spring 9, and water flows through the water inlet channel, the water inlet cavity, the water passing channel, the water outlet cavity and the water passing hole 703 of the check valve sealing gasket 7, flows through a gap between the check valve sleeve 10 and the sealing gasket fixing seat 8 and enters the water outlet channel;
when the water inlet side pipeline generates negative pressure, namely the water outlet channel generates reverse positive pressure relative to the water inlet channel, under the action of the reverse positive pressure, the check valve sleeve 10 adsorbs and compresses the check valve spring 9 rightwards, the right end surface of the cylinder 1003 of the check valve sleeve 10 touches the inner surface of the check valve sealing gasket 7 and is tightly attached to the inner surface, and the water through hole 703 at the right end of the check valve sealing gasket 7 is sealed, so that water flow of the water inlet side pipeline cannot flow to the water outlet channel through the water through hole 703, the negative pressure damage is achieved, and water can only flow out in the water outlet direction and cannot flow back.
As shown in fig. 2, 3 plugging pieces 802 are uniformly distributed on the left side of the fixing base body 801.
As shown in fig. 2, the fixing seat main body 801 is provided with an external thread (not shown) protruding rightward, the left side of the gasket main body 701 is provided with an internal thread (not shown) matching the external thread of the fixing seat main body 801, and the check valve gasket 7 and the fixing seat main body 801 are in threaded connection with each other through the internal thread and the external thread.
As shown in fig. 1, 3 and 4, the threaded joint A1 and the threaded joint B6 are copper joints, which improves the strength and the life of the product.
As shown in fig. 1, 5 and 6, the screw adapter A1 is screwed to the right end of the valve seat body 4, and the screw adapter B6 is screwed to the left end of the valve seat body 4, the screws being M4X12 pan-head cross self-tapping screws 13.
As shown in fig. 1, 7 and 8, the valve plate gasket 19 system includes a protective cover 11, a plastic-coated wire package 12, a self-tapping screw 13, a pressing seat 14, a valve core 16 spring 15, a valve core 16, a sealing head spring 17, a valve plate 18 and a valve plate gasket 19; the plastic-coated wire package 12 is arranged in the protective cover 11, and the bottom of the plastic-coated wire package 12 is fixedly connected with the valve seat main body 4 through a self-tapping screw 13; the pressing seat 14 is of an integral structure and comprises an upper cylinder 1003 and a lower base, the cylinder 1003 is opened downwards, and an inner cavity of the cylinder 1003 is communicated with an inner cavity of the base;
the valve core 16 and the spring 15 are arranged at the upper part of the inner cavity of the cylinder 1003, the valve core 16 is arranged at the lower part of the inner cavity of the cylinder 1003, and the lower part of the valve core 16 extends downwards to the inner cavity of the base; the sealing head spring 17 is sleeved on the periphery of the lower part of the valve core 16, the sealing head spring 17 and the valve plate sealing gasket 19 are arranged in the circular recess at the upper part of the valve seat main body 4, and the sealing head of the valve core 16 at the lower end of the valve core 16 extends downwards to a water passage of the valve seat main body 4 to block the circulation of water; when the solenoid is electrified, the adsorption valve core 16 faces upwards, the sealing head at the lower end of the valve sheet sealing gasket 19 is separated from the water passing channel of the valve seat main body 4, and water passes through the water passing channel.
As shown in fig. 1, 7 and 8, a downward cylindrical boss 702 is provided at the top of the cylinder 1003 of the pressure seat 14, the upper end of the spring 15 of the valve core 16 is sleeved on the cylindrical boss 702, and the lower end of the spring 15 of the valve core 16 is sleeved on the upper end of the valve core 16.
As shown in fig. 7 and 8, the valve sheet sealing gasket 19 system further includes a valve sheet sealing gasket 19 system peripheral structure, the valve sheet sealing gasket 19 system peripheral structure includes a framework 20, a framework fixing plate 21, a sleeve a 22 and a sleeve B23, the framework 20 is arranged in the plastic-coated solenoid 12, the framework fixing plate 21 is arranged below the framework 20 and above the valve seat, the framework fixing plate 21 is fixedly connected with the upper end face of the valve seat, and the bottom of the framework 20 is fixedly connected with the framework fixing plate 21; the sleeve a 22 is provided at an upper position between the frame 20 and the cylindrical body 1003 of the pressure seat 14, and the sleeve B23 is provided at a lower position between the frame 20 and the cylindrical body 1003 of the pressure seat 14.
The above-described embodiments are merely preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (8)
1. A boiled water electromagnetic valve capable of preventing countercurrent comprises a valve seat system and a valve plate sealing pad system, wherein the valve seat system comprises a threaded joint A, a water inlet filtering net cover, a sealing ring A, a valve seat main body, a sealing ring B and a threaded joint B which are sequentially arranged from right to left; threaded joint A center is inhalant canal, threaded joint B center is exhalant canal, disk seat main part right side is provided with the intake antrum, and disk seat main part left side is provided with out the water cavity, the upper end is provided with water channel, its characterized in that between intake antrum and the play water cavity:
the check valve sealing gasket is of an integral structure and comprises a sealing gasket main body on the left side and a raised head on the right side, the sealing gasket main body is of a circular ring shape, and the center of the raised head is provided with a water through hole; the sealing gasket fixing seat is of an integrated structure and comprises a circular ring-shaped fixing seat main body on the right side and 3 arc-shaped inserting pieces on the left side; the check valve sealing gasket is arranged on the right side of the fixing seat main body, and the check valve sealing gasket and the fixing seat main body are attached and fixedly connected with each other;
the check valve sleeve is of an integrated structure and comprises a check valve sleeve chassis, a cylindrical wall and a cylinder body, wherein the check valve sleeve chassis is arranged on the left side of the check valve sleeve, and the periphery of the check valve sleeve chassis is connected with the cylindrical wall; the cylinder is arranged on the right side of the center of the chassis of the check valve sleeve, the left end of the cylinder is connected with the chassis, and a central hole of the cylinder is opened rightwards;
the right side of the base plate of the check valve sleeve, the space between the cylinder wall and the cylinder body are inner cavities of the check valve sleeve, and the check valve spring is sleeved on the cylinder body and is positioned in the inner cavity of the check valve sleeve; 3 circular-arc inserting pieces are inserted into the inner cavity of the check valve sleeve, the outer diameter of a circle formed by the 3 circular-arc inserting pieces is matched with the inner diameter of the check valve sleeve, and the 3 circular-arc inserting pieces are inserted into the inner wall of the main body of the check valve sleeve.
2. The boiled water solenoid valve capable of preventing backflow according to claim 1, wherein: 3 the inserted sheets are evenly distributed on the left side of the fixing seat main body.
3. The boiled water solenoid valve capable of preventing backflow according to claim 1, wherein: the fixing base main part is provided with bellied external screw thread right, sealed pad main part left side be provided with the external screw thread assorted internal thread of fixing base main part, the sealed pad of check valve passes through internal thread and external screw thread threaded connection of each other with the fixing base main part.
4. The boiled water solenoid valve capable of preventing backflow according to claim 1, wherein: the threaded joint A and the threaded joint B are copper joints.
5. The boiled water solenoid valve capable of preventing backflow according to claim 1, wherein: the threaded connector A is connected with the right end of the valve seat body through a screw, the threaded connector B is connected with the left end of the valve seat body through a screw, and the screw is an M4X12 pan head cross self-tapping screw.
6. The boiled water solenoid valve capable of preventing backflow according to claim 1, wherein: the valve plate sealing gasket system comprises a protective cover, a plastic-coated wire package, a self-tapping screw, a pressing seat, a valve core spring, a valve core, a sealing head spring, a valve plate and a valve plate sealing gasket; the plastic-coated wire package is arranged in the protective cover, and the bottom of the plastic-coated wire package is fixedly connected with the valve seat main body through self-tapping screws; the pressing seat is of an integrated structure and comprises an upper cylinder and a lower base, the cylinder is downward opened, and an inner cavity of the cylinder is communicated with an inner cavity of the base;
the valve core spring is arranged at the upper part of the inner cavity of the cylinder, the valve core is arranged at the lower part of the inner cavity of the cylinder, and the lower part of the valve core extends downwards to the inner cavity of the base; the sealing head spring is sleeved on the periphery of the lower part of the valve core, the sealing head spring and the valve plate sealing gasket are arranged in the circular recess in the upper part of the valve seat main body, and the valve core sealing head at the lower end of the valve core extends downwards to the water passing channel of the valve seat main body.
7. The boiled water solenoid valve capable of preventing backflow according to claim 6, wherein: the upper top of the cylinder body of the pressure seat is provided with a downward cylindrical raised head, the upper end of the valve core spring is sleeved on the cylindrical raised head, and the lower end of the valve core spring is sleeved on the upper end of the valve core.
8. The boiled water solenoid valve capable of preventing backflow according to claim 6, wherein: the valve plate sealing gasket system also comprises a valve plate sealing gasket system peripheral structure, the valve plate sealing gasket system peripheral structure comprises a framework, a framework fixing plate, a sleeve A and a sleeve B, the framework is arranged in the plastic-coated wire package, the framework fixing plate is arranged below the framework and above the valve seat, the framework fixing plate is fixedly connected with the upper end face of the valve seat, and the bottom of the framework is fixedly connected with the framework fixing plate; the sleeve A is arranged at the upper part between the framework and the cylinder of the pressing seat, and the sleeve B is arranged at the lower part between the framework and the cylinder of the pressing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122073240.2U CN215568217U (en) | 2021-08-31 | 2021-08-31 | Boiled water solenoid valve capable of preventing countercurrent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122073240.2U CN215568217U (en) | 2021-08-31 | 2021-08-31 | Boiled water solenoid valve capable of preventing countercurrent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215568217U true CN215568217U (en) | 2022-01-18 |
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ID=79844461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122073240.2U Active CN215568217U (en) | 2021-08-31 | 2021-08-31 | Boiled water solenoid valve capable of preventing countercurrent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215568217U (en) |
-
2021
- 2021-08-31 CN CN202122073240.2U patent/CN215568217U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A water solenoid valve that can prevent reverse flow Effective date of registration: 20230823 Granted publication date: 20220118 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Ningbo Yuyao sub branch Pledgor: YUYAO PURO WATER PURIFICATION EQUIPMENT CO.,LTD. Registration number: Y2023330001813 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |