CN203374899U - One-way valve - Google Patents
One-way valve Download PDFInfo
- Publication number
- CN203374899U CN203374899U CN201320486590.4U CN201320486590U CN203374899U CN 203374899 U CN203374899 U CN 203374899U CN 201320486590 U CN201320486590 U CN 201320486590U CN 203374899 U CN203374899 U CN 203374899U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- cavity
- spool
- valve element
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a one-way valve which comprises an upper valve body and a lower valve body connected with the upper valve body. An upper cylindrical valve cavity is formed in the center axis of the upper valve body, the lower valve body and the bottom of the upper valve body form a lower valve cavity in a defined mode, a valve element base is arranged in the lower valve cavity, a valve element is inserted into the valve element base, and a cone-shaped opening is formed in the bottom of the upper valve cavity. The valve element comprises a cone frustum part matched with the cone-shaped opening of the upper valve cavity, a cylindrical head is arranged at the top end of the cone frustum part, the cylindrical head is matched with a cylindrical cavity behind the cone-shaped opening of the upper valve cavity, a stepped shaft is arranged at the lower end of the valve element, the lower end of the stepped shaft is inserted into the valve element base, and a spring is arranged between the stepped shaft and the valve element base. In comparison with the original mode that a valve element abuts against a cavity, the cavity is designed to be of the cylindrical structure with the cone-shaped opening, then the seal end of the valve element serves as the cone frustum part matched with the cavity, the topmost end of the valve element is the cylindrical head, and therefore the valve element can be deep in the cavity in the process of sealing, and a more reliable airtight structure can be formed.
Description
Technical field
The utility model 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.
The model utility content
The utility model technical issues that need to address are that a kind of sealing effect one-way valve preferably is provided.
The technical solution of the utility model 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 utlity model has following advantage:
With spool is propped up to cavity in the past and compares, the utility model 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 1 is the utility model one-way valve;
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, embodiment of the present utility model 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 with regard to the utility model preferably example be described, but can not be interpreted as it is limitations on claims.The utility model not only limits to and above example, its concrete structure those skilled in the art that allow to change can make various changes and distortion according to the utility model, only otherwise break away from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
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 |
|---|---|---|---|
| CN201320486590.4U CN203374899U (en) | 2013-08-09 | 2013-08-09 | One-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486590.4U CN203374899U (en) | 2013-08-09 | 2013-08-09 | One-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374899U true CN203374899U (en) | 2014-01-01 |
Family
ID=49837428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320486590.4U Expired - Fee Related CN203374899U (en) | 2013-08-09 | 2013-08-09 | One-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374899U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453186A (en) * | 2013-08-09 | 2013-12-18 | 长兴金润大正机械有限公司 | Check valve |
| CN104653825A (en) * | 2014-11-02 | 2015-05-27 | 廖真荣 | Check valve for automatically sealing fluid channel by piston under action of gravity |
-
2013
- 2013-08-09 CN CN201320486590.4U patent/CN203374899U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453186A (en) * | 2013-08-09 | 2013-12-18 | 长兴金润大正机械有限公司 | Check valve |
| CN104653825A (en) * | 2014-11-02 | 2015-05-27 | 廖真荣 | Check valve for automatically sealing fluid channel by piston under action of gravity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20170809 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |