CN111379882A - Check valve structure - Google Patents
Check valve structure Download PDFInfo
- Publication number
- CN111379882A CN111379882A CN201911248008.9A CN201911248008A CN111379882A CN 111379882 A CN111379882 A CN 111379882A CN 201911248008 A CN201911248008 A CN 201911248008A CN 111379882 A CN111379882 A CN 111379882A
- Authority
- CN
- China
- Prior art keywords
- opening
- closing member
- valve body
- hole
- fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
- F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/052—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves
- F16K11/0525—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves the closure members being pivoted around an essentially central axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
- F16K1/465—Attachment of sealing rings to the valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The present invention relates to a check valve structure in which a first opening/closing member and a second opening/closing member are rotatably installed inside a first valve body and a second valve body, thereby simplifying the structure and reducing manufacturing costs to ensure economy, and in the case where a fluid is discharged to a discharge pipe through an inflow pipe, the first opening/closing member is opened while the second opening/closing member is closed, and in the case where overflow of the fluid occurs in the first member, the second opening/closing member is opened and the first opening/closing member is closed, and in the case where overflow of the fluid occurs on the discharge pipe side, the first opening/closing member and the second opening/closing member are simultaneously closed, thereby effectively controlling the flow of the fluid and ensuring stability.
Description
Technical Field
The present invention relates to a check valve structure, and more particularly, to a check valve structure in which a first opening/closing member and a second opening/closing member are rotatably installed in a first valve body and a second valve body, thereby simplifying the structure, and a through hole and a discharge guide hole are selectively opened and closed, thereby effectively controlling the flow of fluid.
Background
Generally, the check valve allows the fluid to flow only toward one side, so that the reverse flow of the fluid can be prevented.
The prior art as the check valve as above is disclosed in the bidet of korean laid-open patent publication No. 10-2018-007698 and the reverse flow preventing member equipped to the bidet.
In the above-described invention, the backflow preventing member is provided at the rear end of the water supply valve portion that is opened and closed so as to allow water to flow in, and is elastically deformed by the water pressure to supply water or prevent backflow of water toward the water inlet side.
Although the previously disclosed invention opens the body of the flow path opening/closing member to allow water to enter through the water outlet when water enters through the water inlet and closes the flow path by bringing the bodies of the flow path opening/closing member into close contact with each other by the water pressure of the water when the water flows backward to prevent the backward flow, such a backward flow preventing member can be realized only in a structure in which the water flows in one direction, and cannot be applied to a case in which more than one flow path is formed.
Documents of the prior art
Patent document
(patent document 1) Korean laid-open patent publication No. 10-2018-
Disclosure of Invention
The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a check valve structure in which a first opening/closing member and a second opening/closing member are rotatably mounted in a first valve body and a second valve body, so that the structure is simplified, the manufacturing cost is reduced, and the economical efficiency is ensured.
Another object of the present invention is to provide a check valve structure including: when the fluid is discharged to the discharge pipe through the inflow pipe, the first opening and closing member is opened while the second opening and closing member is closed, and when the fluid overflows from the first member, the second opening and closing member is opened while the first opening and closing member is closed, and when the fluid overflows from the discharge pipe side, the first opening and closing member and the second opening and closing member are closed simultaneously, thereby effectively controlling the flow of the fluid and further ensuring stability.
The check valve structure of the present invention is characterized by comprising: a first valve body fixed to the first member and having a through-hole formed at one side thereof; a second valve body fixed to a front side of the first valve body, having a discharge guide hole formed at a lower portion thereof, and having a discharge hole formed to vertically cross the discharge guide hole; a first opening/closing member coupled to a shaft groove formed at a lower portion of shaft grooves formed in the first valve body to open and close the discharge guide hole; a second opening/closing member coupled to an upper axial groove of the axial grooves formed in the first valve body to open and close the through hole; and stoppers formed inside the first valve body and the second valve body, respectively, to control the first opening/closing member and the second opening/closing member to be unrotatable by a predetermined degree or more, wherein the first opening/closing member is opened and the second opening/closing member is closed when the fluid is discharged to the discharge pipe through the inflow pipe, the second opening/closing member is opened and the first opening/closing member is closed when overflow of the fluid occurs from the first member, and the first opening/closing member and the second opening/closing member are closed simultaneously when backflow of the fluid occurs on the discharge pipe side.
Further, a seal member is attached to one side of the first opening/closing member and the second opening/closing member so as to be in close contact with the through hole and the discharge guide hole, and a rotation control protrusion for controlling rotation of the first opening/closing member and the second opening/closing member is provided on the other side.
Further, the stopper is formed to be inclined at a predetermined angle, so that the through-hole and the discharge guide hole are closed by rotating the first opening/closing member and the second opening/closing member by its own weight when the pressure applied to the first opening/closing member and the second opening/closing member is released.
According to the check valve structure of the invention, the following enhancement effects are achieved: the first and second opening/closing members are rotatably mounted in the first and second valve bodies, thereby simplifying the structure, reducing the manufacturing cost, and ensuring the economical efficiency.
Further, according to the check valve structure of the present invention, the following effects are provided: when the fluid is discharged to the discharge pipe through the inflow pipe, the first opening and closing member is opened while the second opening and closing member is closed, and when overflow of the fluid occurs from the first member, the second opening and closing member is opened while the first opening and closing member is closed, and when overflow of the fluid occurs on the discharge pipe side, the first opening and closing member and the second opening and closing member are closed simultaneously, thereby effectively controlling the flow of the fluid and further ensuring stability.
Drawings
Fig. 1 is an exploded perspective view of the present invention.
Fig. 2 is a side cross-sectional view of the present invention.
Fig. 3 to 5 are operation state diagrams of the present invention.
Description of the symbols:
100: check valve structure 120: first valve body
121: through hole 122: shaft groove
130: second valve body 131: discharge guide hole
132: discharge hole 140: first opening and closing member
141: rotation shaft 142: rotation control projection
143: the seal member 150: second opening and closing member
151: rotation shaft 152: rotation control projection
153: sealing member 160: position limiter
Detailed Description
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
Fig. 1 is an exploded perspective view of the present invention, and fig. 2 is a side sectional view of the present invention.
The check valve structure 100 of the present invention is composed of a first valve body 120, a second valve body 130, a first opening/closing member 140, and a second opening/closing member 150.
The first valve body 120 is fixed to the installation hole 11 of the first member 10, has a through hole 121 formed to communicate with the installation hole 11, and has shaft grooves 122 formed at upper and lower inner portions thereof to rotatably couple the first opening/closing member 140 and the second opening/closing member 150, respectively.
The second valve body 130 is coupled to the first valve body 120 and fixed thereto by screws, and a packing is installed between the first valve body 120 and the second valve body 130 to prevent water leakage.
A discharge guide hole 131 is formed at a lower portion of the second valve body 130, and a discharge hole 132 is formed to perpendicularly cross the discharge guide hole 131 so as to communicate with each other.
A rotary shaft 141 of the first opening/closing member 140 is rotatably coupled to a shaft groove 122 formed at a lower portion of the shaft grooves 122 formed in the first valve body 120.
A sealing member 143 is mounted on one side of the first opening and closing member 140 to tightly close the discharge guide hole 131, and a rotation control protrusion 142 is protrudingly formed on the other side.
A rotary shaft 151 of the second opening/closing member 150 is rotatably coupled to an upper shaft groove 122 of the shaft grooves 122 formed in the first valve body 120.
A sealing member 153 is installed at one side of the second opening and closing member 150 to tightly close the through hole 121, and a rotation control protrusion 152 is protrudingly formed at the other side.
Further, a stopper 160 for controlling the rotation of the first opening/closing member 140 and the second opening/closing member 150 is formed to protrude inside the first valve body 120, and it is preferable that the stopper 160 is formed to be inclined at a predetermined angle so that it can be rotated by its own weight when the pressure applied to the first opening/closing member 140 and the second opening/closing member 150 is released.
The operation state of the check valve structure 100 of the present invention configured as described above will be described in detail as follows.
First, when the fluid is discharged through the inflow tube 20, as shown in fig. 3, the lower portion of the first opening/closing member 140 is pressurized by the pressure of the fluid, the rotating shaft 141 of the first opening/closing member 140 rotates in the upper direction around the shaft groove 122, and the rotation control protrusion 140 is brought into close contact with the stopper 160 inclined at a predetermined angle, so that the discharge guide hole 131 is opened.
At this time, the second opening/closing member 150 is rotated about the shaft groove 122 by the pressure of the fluid flowing into the second valve body 130, so that the sealing member 153 closes the through hole 121, and the fluid is discharged only to the discharge pipe 30 through the discharge hole 132 without being discharged to the first member 10 side through the through hole 121.
When the fluid is completely discharged, the first opening/closing member 140 closely attached to the stopper 160 is lowered and rotated by its own weight, and the discharge guide hole 130 is closed.
When the overflow phenomenon of the fluid occurs on the first member 10 side, as shown in fig. 4, the fluid flows in through the through hole 121 to pressurize one side of the second opening/closing member 150, and the second opening/closing member 150 rotates in the upper direction around the shaft groove 122, and the rotation control protrusion 150 is closely attached to the stopper 160 inclined at a predetermined angle to open the through hole 121.
At this time, the first opening/closing member 140 is rotated about the shaft groove 122 by the pressure of the fluid flowing into the second valve body 130, so that the sealing member 143 closes the discharge guide hole 131, and the fluid is discharged only to the discharge pipe 30 through the discharge hole 132 without being discharged from the discharge guide hole 131.
When the discharge of the fluid is terminated, the second opening/closing member 150 closely attached to the stopper 160 descends and rotates by its own weight, and the through hole 121 is closed.
When the reverse flow occurs on the discharge pipe 30 side, the fluid flows into the second valve body 130 through the discharge pipe 30 and the discharge hole 132, as shown in fig. 5.
At this time, the first and second opening and closing members 140 and 150 are rotated around the shaft groove 122 by the pressure of the fluid, so that the sealing members 143 and 153 are closely attached to the discharge guide hole 131 and the through hole 121 and the fluid is not discharged to the through hole 121 and the discharge guide hole 131, thereby simplifying the structure of the check valve and securing stability.
Although the check valve structure 100 of the present invention has been described with reference to a fluid, the present invention is not limited thereto, and may be applied to a technique for controlling the flow of air other than a fluid.
As described above, although the present invention has been described with respect to limited embodiments and drawings, terms or words used in the specification and the scope of claims should not be limited and interpreted to have a general or lexical meaning, but should be interpreted to have a meaning and concept conforming to the technical idea of the present invention.
Therefore, the embodiment described in the present specification and the configuration shown in the drawings are only an embodiment of the present invention and do not represent the entire technical idea of the present invention, and it should be understood that various equivalents and modifications exist within the limits not exceeding the scope of the claims of the present invention.
Claims (3)
1. A check valve structure, comprising:
a first valve body fixed to the first member and having a through-hole formed at one side thereof;
a second valve body fixed to a front side of the first valve body, having a discharge guide hole formed at a lower portion thereof, and having a discharge hole formed to vertically cross the discharge guide hole;
a first opening/closing member coupled to a shaft groove formed at a lower portion of shaft grooves formed in the first valve body to open and close the discharge guide hole;
a second opening/closing member coupled to an upper axial groove of the axial grooves formed in the first valve body to open and close the through hole; and
stoppers formed inside the first valve body and the second valve body, respectively, for controlling the first opening/closing member and the second opening/closing member to be non-rotatable by a predetermined degree or more,
wherein the first opening and closing member is opened and the second opening and closing member is closed at the same time when the fluid is discharged to the discharge pipe through the inflow pipe, and the second opening and closing member is opened and the first opening and closing member is closed when overflow of the fluid occurs from the first member, and the first opening and closing member and the second opening and closing member are closed at the same time when reverse flow of the fluid occurs on the discharge pipe side.
2. The check valve structure of claim 1,
a seal member is attached to one side of the first opening/closing member and the second opening/closing member so as to be in close contact with the through hole and the discharge guide hole, and a rotation control protrusion for controlling rotation of the first opening/closing member and the second opening/closing member is provided on the other side.
3. The check valve structure of claim 1,
the stopper is formed to be inclined at a predetermined angle so that the through-hole and the discharge guide hole are closed by rotating the first opening/closing member and the second opening/closing member by its own weight when the pressure applied to the first opening/closing member and the second opening/closing member is released.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180171797A KR101944933B1 (en) | 2018-12-28 | 2018-12-28 | Check valve structure |
| KR10-2018-0171797 | 2018-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111379882A true CN111379882A (en) | 2020-07-07 |
| CN111379882B CN111379882B (en) | 2022-03-18 |
Family
ID=65367105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911248008.9A Active CN111379882B (en) | 2018-12-28 | 2019-12-09 | Check valve structure |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101944933B1 (en) |
| CN (1) | CN111379882B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57184366U (en) * | 1981-05-19 | 1982-11-22 | ||
| CN102797875A (en) * | 2011-05-23 | 2012-11-28 | 广东美芝制冷设备有限公司 | Bidirectional one-way valve and control method thereof |
| JP2014231884A (en) * | 2013-05-29 | 2014-12-11 | 東芝キヤリア株式会社 | Valve device and water heater |
| CN107178635A (en) * | 2017-07-01 | 2017-09-19 | 宁波华成阀门有限公司 | A kind of copper modeling composite pressure reducing formula backflow preventer and its manufacture method |
| CN107228211A (en) * | 2017-06-20 | 2017-10-03 | 英诺威阀业有限公司 | A kind of combined type check-valves |
| CN108953694A (en) * | 2018-06-13 | 2018-12-07 | 江苏圣泰阀门有限公司 | Nuclear power check-valves |
-
2018
- 2018-12-28 KR KR1020180171797A patent/KR101944933B1/en active IP Right Grant
-
2019
- 2019-12-09 CN CN201911248008.9A patent/CN111379882B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57184366U (en) * | 1981-05-19 | 1982-11-22 | ||
| CN102797875A (en) * | 2011-05-23 | 2012-11-28 | 广东美芝制冷设备有限公司 | Bidirectional one-way valve and control method thereof |
| JP2014231884A (en) * | 2013-05-29 | 2014-12-11 | 東芝キヤリア株式会社 | Valve device and water heater |
| CN107228211A (en) * | 2017-06-20 | 2017-10-03 | 英诺威阀业有限公司 | A kind of combined type check-valves |
| CN107178635A (en) * | 2017-07-01 | 2017-09-19 | 宁波华成阀门有限公司 | A kind of copper modeling composite pressure reducing formula backflow preventer and its manufacture method |
| CN108953694A (en) * | 2018-06-13 | 2018-12-07 | 江苏圣泰阀门有限公司 | Nuclear power check-valves |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101944933B1 (en) | 2019-02-07 |
| CN111379882B (en) | 2022-03-18 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220214 Address after: Yang Hong and Nan Yang Cun, Lubei street, Luqiao District, Taizhou City, Zhejiang Province Applicant after: COMA INTELLIGENT TECHNOLOGY Co.,Ltd. Address before: Inchon City, Korea Applicant before: Ren Rongjun |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |