CN103453186A - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN103453186A CN103453186A CN2013103453901A CN201310345390A CN103453186A CN 103453186 A CN103453186 A CN 103453186A CN 2013103453901 A CN2013103453901 A CN 2013103453901A CN 201310345390 A CN201310345390 A CN 201310345390A CN 103453186 A CN103453186 A CN 103453186A
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- China
- Prior art keywords
- valve
- valve body
- spool
- cavity
- core case
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- 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.)
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Abstract
The invention discloses a check valve which comprises an upper valve body and a lower valve body. The lower valve body is connected with the upper valve body, a cylindrical upper valve cavity is arranged on the central axis of the upper valve body, a lower valve cavity is formed by the lower valve body and the bottom of the upper valve body in an enclosed manner, a valve spool seat is arranged in the lower valve cavity, a valve spool is inserted in the valve spool seat, a conical opening is formed in the bottom of the upper valve cavity, the valve spool comprises a circular truncated cone matched with the conical opening of the upper valve cavity, a cylindrical head is arranged on the top of the circular truncated cone and is matched with a cylindrical cavity at the rear of the conical opening of the upper valve cavity, a stepped shaft is arranged at the lower end of the valve spool, the lower end of the stepped shaft is inserted into the valve spool seat, and a spring is arranged between the stepped shaft and the valve spool seat. Compared with an existing check valve with a valve spool abutted to a cavity, the check valve has the advantages that a cavity is of a cylindrical structure with the conical opening, the circular truncated cone which is matched with the conical opening is arranged at a seal end of the valve spool, and the cylindrical head is arranged on the top of the valve spool, so that the valve spool can be deeply arranged in the cavity when sealed, and a reliable sealed structure can be formed.
Description
Technical field
The present invention relates to a kind of connection valve, specifically a kind of one-way valve.
Background technique
Spool for sealing in the one-way valve of most generally props up the passage of cavity with the sealed end of spool, such sealing effect is not ideal enough, there will be the situation of infiltration when pressure reaches certain value.
Summary of the invention
The technical issues that need to address of the present invention are that a kind of sealing effect one-way valve preferably is provided.
Technological scheme of the present invention is: a kind of one-way valve, comprise upper valve body and the lower valve body be connected with upper valve body, described upper valve body central axis is provided with columniform uuper valve chamber, lower valve body and upper valve body bottom surround lower valve chamber, be provided with valve core case in lower valve chamber, be inserted with spool on valve core case, described uuper valve chamber bottom is provided with taper mouth, described spool comprises the round platform section coordinated with the uuper valve chamber taper mouth, described round platform section top is provided with socket cap, described socket cap coordinates with the cylindrical cavity at uuper valve chamber taper mouth rear, described spool lower end is provided with multidiameter shaft, insert in valve core case described multidiameter shaft lower end, be provided with spring between described multidiameter shaft and valve core case.
As preferably, the column cap on described spool partly overlaps spring, and spring one end withstands multidiameter shaft, and an end withstands valve core case.
As preferably, described upper valve body and lower valve body are fixing to be threaded, and are lined with seal ring in the contacting point of upper valve body and lower valve body.
As preferably, above described lower valve chamber inwall, valve core case, be provided with positioning strip with fixed spool.
As preferably, described spool is plastics, and upper valve body and lower valve body are chromium plating iron.
After adopting technique scheme, the present invention has following advantage:
With spool is propped up to cavity in the past and compares, the present invention is the cylindrical structural with taper mouth by cavity design, then by the sealed end of spool, be the round platform section matched, and top is socket cap, so just make in when sealing can be deep into cavity by spool, form seal structure more reliably.
The accompanying drawing explanation
The cross-sectional schematic that accompanying drawing 2 is uuper valve chamber;
The schematic top plan view that accompanying drawing 3 is uuper valve chamber;
The cross-sectional schematic that accompanying drawing 4 is lower valve chamber;
The schematic top plan view that accompanying drawing 5 is lower valve chamber;
The front elevational schematic that accompanying drawing 6 is spool.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
As shown in Figures 1 to 6, the one-way valve of the present embodiment, comprise upper valve body 1 and the lower valve body 4 be connected with upper valve body 1, described upper valve body 1 central axis is provided with columniform uuper valve chamber 10, lower valve body 4 surrounds lower valve chamber 40 with upper valve body 1 bottom, be provided with valve core case 41 in lower valve chamber 40, be inserted with spool 2 on valve core case 41, described uuper valve chamber 10 bottoms are provided with taper mouth, described spool 2 comprises the round platform section 20 coordinated with uuper valve chamber 1 taper mouth, described round platform section 20 tops are provided with socket cap 21, described socket cap 21 coordinates with the cylindrical cavity at uuper valve chamber 10 taper mouth rears, described spool 2 lower ends are provided with multidiameter shaft 22, insert in valve core case 41 described multidiameter shaft 22 lower ends, be provided with spring 3 between described multidiameter shaft 22 and valve core case 41.Column cap 22 part covers on described spool 2 have spring 3, and spring 3 one ends withstand multidiameter shaft 22, one ends and withstand valve core case 41, utilize the restoring force of spring 3 that spool 2 is withstood in uuper valve chamber 10, to keep sealing preferably.Described upper valve body 1 and lower valve body 4 are fixing to be threaded, and are lined with seal ring 5 in the contacting point of upper valve body 1 and lower valve body 4, prevent infiltration.Lower valve chamber 40 inwalls, valve core case 41 tops are provided with positioning strip 42 with fixed spool 2, and spool 2 is inserted in valve core case 41 more accurate stable like this.Spool 2 is plastics, and upper valve body 1 and lower valve body 4 are chromium plating iron.
Below only just the present invention preferably example be described, but can not be interpreted as it is limitations on claims.The present invention not only limits to and above example, and its concrete structure those skilled in the art that allow to change can make according to the present invention various changes and distortion, only otherwise break away from spirit of the present invention, all should belong to the defined scope of claims of the present invention.
Claims (5)
1. an one-way valve, comprise upper valve body (1) and the lower valve body (4) be connected with upper valve body (1), described upper valve body (1) central axis is provided with columniform uuper valve chamber (10), lower valve body (4) surrounds lower valve chamber (40) with upper valve body (1) bottom, be provided with valve core case (41) in lower valve chamber (40), be inserted with spool (2) on valve core case (41), it is characterized in that: described uuper valve chamber (10) bottom is provided with taper mouth, described spool (2) comprises the round platform section (20) coordinated with uuper valve chamber (1) taper mouth, described round platform section (20) top is provided with socket cap (21), described socket cap (21) coordinates with the cylindrical cavity at uuper valve chamber (10) taper mouth rear, described spool (2) lower end is provided with multidiameter shaft (22), insert in valve core case (41) described multidiameter shaft (22) lower end, be provided with spring (3) between described multidiameter shaft (22) and valve core case (41).
2. one-way valve according to claim 1 is characterized in that: column cap (22) the part cover on described spool (2) has spring (3), and spring (3) one ends withstand multidiameter shaft (22), and an end withstands valve core case (41).
3. one-way valve according to claim 2, it is characterized in that: described upper valve body (1) and lower valve body (4) are fixing to be threaded, and are lined with seal ring (5) in the contacting point of upper valve body (1) and lower valve body (4).
4. one-way valve according to claim 3, is characterized in that: above described lower valve chamber (40) inwall, valve core case (41), be provided with positioning strip (42) with fixed spool (2).
5. one-way valve according to claim 4, it is characterized in that: described spool (2) is plastics, and upper valve body (1) and lower valve body (4) are chromium plating iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103453901A CN103453186A (en) | 2013-08-09 | 2013-08-09 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103453901A CN103453186A (en) | 2013-08-09 | 2013-08-09 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103453186A true CN103453186A (en) | 2013-12-18 |
Family
ID=49735873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103453901A Pending CN103453186A (en) | 2013-08-09 | 2013-08-09 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103453186A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015663A (en) * | 2016-08-16 | 2016-10-12 | 山东益昌电子科技有限公司 | Self-locked check valve |
| CN106151613A (en) * | 2016-08-18 | 2016-11-23 | 湖北三江航天万峰科技发展有限公司 | Miniature inflatable mouth |
| CN110953383A (en) * | 2019-12-02 | 2020-04-03 | 西安奕斯伟硅片技术有限公司 | Check valve of vacuum pump |
| RU200706U1 (en) * | 2020-08-07 | 2020-11-06 | Общество с ограниченной ответственностью "Российская инновационная топливно-энергетическая компания" (ООО "РИТЭК") | CHECK VALVE FOR SHANK COLUMN EQUIPMENT |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB725524A (en) * | 1952-09-06 | 1955-03-02 | Kreidel Hans | Improvements relating to check valves |
| US4172465A (en) * | 1977-11-07 | 1979-10-30 | Conbraco Industries, Inc. | Check valve |
| CN2653251Y (en) * | 2003-09-23 | 2004-11-03 | 隆凯成 | Return pressure single flow valve |
| CN2795589Y (en) * | 2005-05-30 | 2006-07-12 | 宝山钢铁股份有限公司 | Check valve for pollution discharge pump |
| CN200989479Y (en) * | 2006-12-18 | 2007-12-12 | 宝山钢铁股份有限公司 | Conic spool oneyway valve |
| CN201137728Y (en) * | 2007-12-14 | 2008-10-22 | 陈美诗 | Air pumping valve |
| CN203374899U (en) * | 2013-08-09 | 2014-01-01 | 长兴金润大正机械有限公司 | One-way valve |
-
2013
- 2013-08-09 CN CN2013103453901A patent/CN103453186A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB725524A (en) * | 1952-09-06 | 1955-03-02 | Kreidel Hans | Improvements relating to check valves |
| US4172465A (en) * | 1977-11-07 | 1979-10-30 | Conbraco Industries, Inc. | Check valve |
| CN2653251Y (en) * | 2003-09-23 | 2004-11-03 | 隆凯成 | Return pressure single flow valve |
| CN2795589Y (en) * | 2005-05-30 | 2006-07-12 | 宝山钢铁股份有限公司 | Check valve for pollution discharge pump |
| CN200989479Y (en) * | 2006-12-18 | 2007-12-12 | 宝山钢铁股份有限公司 | Conic spool oneyway valve |
| CN201137728Y (en) * | 2007-12-14 | 2008-10-22 | 陈美诗 | Air pumping valve |
| CN203374899U (en) * | 2013-08-09 | 2014-01-01 | 长兴金润大正机械有限公司 | One-way valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015663A (en) * | 2016-08-16 | 2016-10-12 | 山东益昌电子科技有限公司 | Self-locked check valve |
| CN106151613A (en) * | 2016-08-18 | 2016-11-23 | 湖北三江航天万峰科技发展有限公司 | Miniature inflatable mouth |
| CN106151613B (en) * | 2016-08-18 | 2018-06-29 | 湖北三江航天万峰科技发展有限公司 | Miniature inflatable mouth |
| CN110953383A (en) * | 2019-12-02 | 2020-04-03 | 西安奕斯伟硅片技术有限公司 | Check valve of vacuum pump |
| RU200706U1 (en) * | 2020-08-07 | 2020-11-06 | Общество с ограниченной ответственностью "Российская инновационная топливно-энергетическая компания" (ООО "РИТЭК") | CHECK VALVE FOR SHANK COLUMN EQUIPMENT |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131218 |