CN201401537Y - Ball core check valve preventing natural leakage - Google Patents
Ball core check valve preventing natural leakage Download PDFInfo
- Publication number
- CN201401537Y CN201401537Y CN2009203026915U CN200920302691U CN201401537Y CN 201401537 Y CN201401537 Y CN 201401537Y CN 2009203026915 U CN2009203026915 U CN 2009203026915U CN 200920302691 U CN200920302691 U CN 200920302691U CN 201401537 Y CN201401537 Y CN 201401537Y
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- CN
- China
- Prior art keywords
- ball cover
- valve body
- valve
- ball
- check valve
- 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 relates to a ball core check valve preventing natural leakage, which comprises a valve body and a valve head connected with the valve body, wherein a ball cover is arranged in the valve body; both the upper end and the lower end of the ball cover adopt an opening structure; the side wall of the ball cover is a gridding structure; a ball body capable of moving up and down in the ball cover is arranged in the ball cover; the lower end of the ball cover is provided with an elastic rubber ring; the ball cover and the elastic rubber ring are fixed between the valve body and the valve head; and the diameter of the valve body is larger than the mesoporous diameter of the opening at the upper end of the ball cover and the elastic rubber ring. The valve body of the check valve isinternally provided with the ball cover with the upper end, the lower end and the side wall being permeable; and the ball body is arranged in the ball cover and caused to move up and down under the effect of water pressure so as to realize the opening and closing of the valve. The check valve has simple structure, easy manufacturing and good use effect.
Description
Technical field
The utility model relates to a kind of safety check, and is especially a kind of anti-from losing the core safety check.
Background technique
At present, safety check is a kind of valve mechanism commonly used, and existing safety check mainly is to adopt rocker style configuration or spring structure, but no matter is which kind of structure, all occurs the natural leak phenomenon easily in use, and its maintenance and turnover rate are quite high.Especially contain the heavier area of alkali in water quality, the damage of safety check is frequent especially, has brought a lot of troubles.
The model utility content:
The purpose of this utility model is: provide a kind of anti-from losing the core safety check, its long service life prevents that natural leak is effective, has significantly reduced maintenance and turnover rate, to overcome the deficiencies in the prior art.
The utility model is achieved in that anti-from losing the core safety check, comprise valve body and the valve head that is connected with valve body, in valve body, be provided with a ball cover, the two ends up and down of ball cover are hatch frame, and the sidewall of ball cover is a grid structure, is provided with a spheroid that can move up and down in ball cover in ball cover; Be provided with the elastic caoutchouc circle in the lower end of ball cover, ball cover and elastic caoutchouc circle are fixed between valve body and the valve head; The diameter of spheroid is greater than the opening of ball cover upper end and the median pore diameter of elastic caoutchouc circle.
Be provided with pad in elastic caoutchouc circle bottom, the bottom of pad contacts with valve head.
Owing to adopted technique scheme, compared with prior art, the ball cover of two ends and the equal porous of sidewall about the utility model adopts and install in the valve body of safety check, and in ball cover, place a spheroid, spheroid is moved up and down, with the unlatching that realizes valve and close under hydraulic action; Owing to the sealing effect of spheroid is to rely on the hydraulic pressure of top to realize, therefore be difficult for even its elastic caoutchouc is irised out existing damage, also changing easily along with increasing service time and natural leak occurring.Of the present utility model simple in structure, make easily, and using effect is good.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Embodiment
Embodiment of the present utility model: the structure of the anti-core safety check of losing certainly as shown in Figure 1, make a valve body 1 and valve head 2 earlier, make a ball cover 4 again, opening is produced at the two ends up and down of ball cover 4, and the sidewall of ball cover 4 is made as grid structure, a spheroid 3 (diameter of spheroid 3 greater than the through hole at ball cover 4 tops and the grid of sidewall) is installed in ball cover 4, again ball cover 4 is placed in the top of valve head 2, and between the bottom of ball cover 4 and valve head 2, place elastic caoutchouc circle 5 (median pore diameter of elastic caoutchouc circle 5 is less than the diameter of spheroid 3) and pads 6, then the screw thread of valve head 2 is screwed in the internal thread of valve body 1 bottom and compresses pressure ball cover 4, elastic caoutchouc circle 5 and pad 6; The diameter of spheroid 3 is greater than the median pore diameter of the opening and the elastic caoutchouc circle 5 of ball cover 4 upper ends.
Be provided with pad 6 in elastic caoutchouc circle 5 bottoms, the bottom of pad 6 contacts with valve head 2.
In use, when the hydraulic pressure of valve head 2 belows during greater than the hydraulic pressure of valve body 1 top, spheroid 3 is just by jack-up, and water enters from valve head 2 belows, and the grid by ball cover 4 sidewalls enters in the valve body 1, is pressed into then in the pipeline that valve body 1 top connects; When the hydraulic pressure of valve head 2 belows during less than the hydraulic pressure of valve body 1 top, spheroid 3 is forced into below, make its with elastic caoutchouc circle 5 between seal, make water can not flow to valve head 2 belows, played the effect of non-return like this.And the leakproof seal performance of spheroid 3, by hydraulic pressure decision, so it can not be subjected to the influence of service time, has just avoided occurring the situation of natural leak.Pad 6 is directly to be subjected to the extruding of valve head 2 and to damage for fear of elastic caoutchouc circle 5.The sidewall structure of the ball cover 4 in the utility model can be made as the grid of various ways, only selects a kind of describing in this example for use, and its basic goal is exactly that current are convenient to pass through ball cover 4 in order to make, and can block spheroid 3.
Claims (2)
1. prevent from losing the core safety check for one kind, comprise valve body (1) and the valve head (2) that is connected with valve body (1), it is characterized in that: in valve body (1), be provided with a ball cover (4), the two ends up and down of ball cover (4) are hatch frame, and the sidewall of ball cover (4) is a grid structure, is provided with a spheroid (3) that can move up and down in ball cover (4) in ball cover (4); Be provided with elastic caoutchouc circle (5) in the lower end of ball cover (4), ball cover (4) and elastic caoutchouc circle (5) are fixed between valve body (1) and the valve head (2); The diameter of spheroid (3) is greater than the opening of ball cover (4) upper end and the median pore diameter of elastic caoutchouc circle (5).
2. according to claim 1 anti-from losing the core safety check, it is characterized in that: be provided with pad (6) in elastic caoutchouc circle (5) bottom, the bottom of pad (6) contacts with valve head (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203026915U CN201401537Y (en) | 2009-04-29 | 2009-04-29 | Ball core check valve preventing natural leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203026915U CN201401537Y (en) | 2009-04-29 | 2009-04-29 | Ball core check valve preventing natural leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201401537Y true CN201401537Y (en) | 2010-02-10 |
Family
ID=41661334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203026915U Expired - Fee Related CN201401537Y (en) | 2009-04-29 | 2009-04-29 | Ball core check valve preventing natural leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201401537Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103038552A (en) * | 2010-08-20 | 2013-04-10 | 株式会社岛津制作所 | Check valve and liquid feeding pump |
| CN103851236A (en) * | 2014-04-01 | 2014-06-11 | 四川川西磁业有限责任公司 | Material-injection one-way valve for molding of permanent magnetic ferrite |
| CN105874252A (en) * | 2014-01-02 | 2016-08-17 | 耆那灌溉系统有限公司 | Non return valve for use in water line |
| CN105864468A (en) * | 2016-05-19 | 2016-08-17 | 南通国电电站阀门股份有限公司 | Ultra-supercritical tape bypass spherical sealing check valve |
| CN109869510A (en) * | 2017-12-01 | 2019-06-11 | 中国石油化工股份有限公司华北油气分公司采油一厂 | Valve ball formula ball-and-seat |
-
2009
- 2009-04-29 CN CN2009203026915U patent/CN201401537Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103038552A (en) * | 2010-08-20 | 2013-04-10 | 株式会社岛津制作所 | Check valve and liquid feeding pump |
| CN103038552B (en) * | 2010-08-20 | 2014-06-25 | 株式会社岛津制作所 | Check valve and liquid feeding pump |
| CN105874252A (en) * | 2014-01-02 | 2016-08-17 | 耆那灌溉系统有限公司 | Non return valve for use in water line |
| CN103851236A (en) * | 2014-04-01 | 2014-06-11 | 四川川西磁业有限责任公司 | Material-injection one-way valve for molding of permanent magnetic ferrite |
| CN105864468A (en) * | 2016-05-19 | 2016-08-17 | 南通国电电站阀门股份有限公司 | Ultra-supercritical tape bypass spherical sealing check valve |
| CN109869510A (en) * | 2017-12-01 | 2019-06-11 | 中国石油化工股份有限公司华北油气分公司采油一厂 | Valve ball formula ball-and-seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20120429 |