CN2622263Y - Double-sealing rubber one-way valve - Google Patents
Double-sealing rubber one-way valve Download PDFInfo
- Publication number
- CN2622263Y CN2622263Y CN 03221502 CN03221502U CN2622263Y CN 2622263 Y CN2622263 Y CN 2622263Y CN 03221502 CN03221502 CN 03221502 CN 03221502 U CN03221502 U CN 03221502U CN 2622263 Y CN2622263 Y CN 2622263Y
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- Prior art keywords
- cavity
- seal surface
- input port
- resilient seal
- forms
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- Expired - Fee Related
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Abstract
The utility model discloses a double-seal rubber check valve, comprising an inlet water-cavity (1) and an outlet water-cavity (5). The outlet water-cavity (5) is in labiate shape, the included angle of the input water-cavity (1) narrows down gradually to the tail and forms a first elastic sealing face (2); the first elastic sealing face (2) separates the inlet water-cavity (1) from the outlet water-cavity (5); the inlet water-cavity wall extends toward the tail of the first elastic sealing face (2) and forms an elastic transitional cavity (3); the tail of the elastic transitional cavity (3) folds inward and forms a second elastic sealing face (4); and the tail of the second elastic sealing face (4) is split and forms an outlet (5). The utility model can improve the rigidity of the sealing part of a check valve, increase the sealing effect and increase the service life. Compared with other products with identical caliber, the utility model can save more raw materials and reduce production cost.
Description
Technical field
The utility model relates to a kind of colloid check (non-return) valve, is to use in water supply and sewage work, prevents unidirectional defeated, the draining valve of aqueous reflux.
Background technology
The colloid check (non-return) valve all is to be made into the duckbilled lip by the colloidal materials moulding at present.It utilizes the sealing of colloid natural elasticity, and when failing draining, after head pressure and check (non-return) valve reservoir fills with water, weight makes its distortion and realizes defeated drain function.It just can not be failed, draining from pressing the natural elasticity that can not overcome colloid in case head pressure or water are heavy, and the colloid natural elasticity just closes sealing surface, compresses at the static pressure of Shui Zhongshui two lips with afterbody, thereby stops aqueous reflux.This structure wants to reach the non-return effect of sealing for bigbore check (non-return) valve, and just only reliable increase material realizes, has strengthened cost of production.And work as check (non-return) valve above certain service life, colloid wears out and after losing natural elasticity, has just gone out not have the non-return effect of sealing again.
Summary of the invention
The utility model mainly is at the heavy caliber check (non-return) valve, provides a kind of and saves material, reduces production costs, the double containment colloid check (non-return) valve that increases the service life.
The utility model adopts following technical scheme: a kind of double containment colloid check (non-return) valve, it has the input port water cavity and the output mouth of a river, the output mouth of a river is a lip, the input port water cavity forms first resilient seal surface because of angle is contracted to afterbody gradually, first resilient seal surface separates the input port water cavity and the output mouth of a river, described input port water cavity wall extends to form the elasticity adapter cavity to the rear portion of first resilient seal surface, the afterbody of elasticity adapter cavity closes up formation second resilient seal surface again, and the portion of second resilient seal surface is split into the output mouth of a river.
The flat angular range in the diminishing cross section of water cavity, described input port is 45 to 75 degree.
The utility model is on the basis of the elastic sealing structure of traditional check (non-return) valve abroad, increased an elasticity adapter cavity, increased by second resilient seal surface again, improved the rigidity at check (non-return) valve sealing position in the back of elasticity adapter cavity, strengthened sealing non-return effect, prolonged application life.Compare with product, saved the product raw material greatly, reduced cost of production with bore.
Description of drawings
Fig. 1 is that the utility model master looks the semi-section structural representation
Fig. 2 is the utility model horizontal section structural representation
Fig. 3 is the vertical view of Fig. 2
The specific embodiment
With reference to accompanying drawing, a kind of double containment colloid of the utility model check (non-return) valve, it comprises input port water cavity 1, first resilient seal surface 2, elasticity adapter cavity 3, second resilient seal surface 4 and the output mouth of a river 5, the output mouth of a river 5 is a lip.Input port water cavity 1 sees that on horizontal section similar cylinder dwindles after flattening gradually, and formed angular range is between 45 to 75 degree, and angle is 60 degree in the present embodiment.The afterbody of input port water cavity 1 is provided with first resilient seal surface 2, input port water cavity wall extends to form elasticity adapter cavity 3 to the rear portion of first resilient seal surface 2, the 3 rounded transition of elasticity adapter cavity are closed up, form second resilient seal surface 4, the afterbody of second resilient seal surface 4 separately forms the output mouth of a river 5 again, between the input port water cavity 1 and the output mouth of a river 2 the twice resilient seal surface is arranged like this, improved the non-return effect of sealing.
Claims (2)
1, a kind of double containment colloid check (non-return) valve, it has the input port water cavity (1) and the output mouth of a river (5), the output mouth of a river (5) is a lip, input port water cavity (3) forms first resilient seal surface (2) because of angle is contracted to afterbody gradually, first resilient seal surface (2) separates the input port water cavity (1) and the output mouth of a river (5), it is characterized in that described input port water cavity wall extends to form elasticity adapter cavity (3) to the rear portion of first resilient seal surface (2), the afterbody of elasticity adapter cavity (3) closes up formation second resilient seal surface (4) again, and the portion of second resilient seal surface (4) is split into the output mouth of a river (5).
2, double containment colloid check (non-return) valve according to claim 1 is characterized in that the flat angular range in the diminishing cross section of described input port water cavity (1) is 45 to 75 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221502 CN2622263Y (en) | 2003-04-22 | 2003-04-22 | Double-sealing rubber one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221502 CN2622263Y (en) | 2003-04-22 | 2003-04-22 | Double-sealing rubber one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2622263Y true CN2622263Y (en) | 2004-06-30 |
Family
ID=34244689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03221502 Expired - Fee Related CN2622263Y (en) | 2003-04-22 | 2003-04-22 | Double-sealing rubber one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2622263Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114645A (en) * | 2013-02-22 | 2013-05-22 | 薛宜 | Silica gel type sealing floor drain |
| CN103132573A (en) * | 2013-02-22 | 2013-06-05 | 薛宜 | Silica-gel-type sealing floor drain |
| CN105972272A (en) * | 2016-06-24 | 2016-09-28 | 戴文平 | Single-circle silicone flexible built-in one-way valve |
-
2003
- 2003-04-22 CN CN 03221502 patent/CN2622263Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114645A (en) * | 2013-02-22 | 2013-05-22 | 薛宜 | Silica gel type sealing floor drain |
| CN103132573A (en) * | 2013-02-22 | 2013-06-05 | 薛宜 | Silica-gel-type sealing floor drain |
| CN103132573B (en) * | 2013-02-22 | 2015-04-22 | 瑞安市友邦标准件有限公司 | Silica-gel-type sealing floor drain |
| CN105972272A (en) * | 2016-06-24 | 2016-09-28 | 戴文平 | Single-circle silicone flexible built-in one-way valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING SHUIMEI ENVIRONMENT PROTECTION MACHINE CO Free format text: FORMER OWNER: CHANG QINGCHANG; PATENTEE Effective date: 20071207 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071207 Address after: B, 36E, new world center, No. 88, Jiangsu, Nanjing, Zhujianglu Road 210000, China Patentee after: Nanjing water environmental protection machinery Co., Ltd. Address before: 50, No. 1, Chi Shang San village, Taixing Town, Taixing City, Jiangsu Province, zip code: 225400 Co-patentee before: Zhang Xinhang Patentee before: Chang Qing Chang |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040630 Termination date: 20110422 |