CN204493811U - Twin shaft Wafer Check Valves - Google Patents
Twin shaft Wafer Check Valves Download PDFInfo
- Publication number
- CN204493811U CN204493811U CN201520163633.4U CN201520163633U CN204493811U CN 204493811 U CN204493811 U CN 204493811U CN 201520163633 U CN201520163633 U CN 201520163633U CN 204493811 U CN204493811 U CN 204493811U
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- flap
- shaft
- valve body
- hole
- dish
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Abstract
The twin shaft Wafer Check Valves that the utility model relates to, comprise valve body, include flap, valve gap and spring, described valve body front-end face medial center position is provided with the positioning shaft stretched out in valve body, described flap is made up of flap dish and flap shaft, the center, front end of described flap shaft is provided with positioning hole, positioning hole is sleeved on positioning shaft, described flap dish is arranged on the front end outer side of flap shaft, described valve gap is provided with several transmission hole, in the middle of valve gap, be provided with axle bed hole, described valve gap spinning is on valve rear end, and flap shaft is installed in axle bed hole; Pass through the technical program, when downstream pressure is greater than upstream pressure, flap shaft on flap in axle bed hole with the rapid action of flap dish, there will not be stuck phenomenon, even if valve body chamber inner plane degree is poor, utilize the structure and material characteristic of " O " RunddichtringO, flap also can compress valve body, stop reverse fluid flow, long service life, secure safety is strong.
Description
Technical field
The utility model relates to a kind of safety check be connected in series with pipeline, particularly relates to a kind of twin shaft Wafer Check Valves.
Background technique
Wafer Check Valves is used in water supply pipline system, Wafer Check Valves relies on the flowing of water in pipeline itself produce power and open and close automatically, can be used in preventing the aqueous reflux in pipeline, prevent water pump and drive motor reversion thereof, and the releasing of water in container.
Traditional Wafer Check Valves because its structure length is short, volume is little, lightweight, simply compact, the plurality of advantages such as be active in one's movements, be widely applied in the middle of engineering system, wherein the liftable Wafer Check Valves of flap has become the main flow of its market segment, but in actual application, still there is more problem or deficiency in existing Wafer Check Valves:
Tradition Wafer Check Valves structurally only devises an axle, and have larger matching gap between the axle on flap and the hole on valve gap, due to the restriction of return valve function, structure, that can not be done is quite long, when outlet pressure is greater than inlet pressure, very easily there is circumferential offset in the axle on flap, cause axle stuck in the hole of valve gap in hole.
What tradition Wafer Check Valves was installed on flap is rubber pad, when water flows in the other direction, because flap is acted on valve body by the pressure of water and spring force, thus cut off the flowing of water, say that the surface of valve seat and rubber pad is level and smooth from macroscopic perspective, but because the technology such as technique, raw material and manufacturing mechanism are limited, the actual product produced can not reach the rugged phenomenon do not had on microcosmic, though make the Wafer Check Valves that rubber pad is housed have non-return effect, still there is poorly sealed situation.
Model utility content
In view of this, main purpose of the present utility model is to provide a kind of twin shaft Wafer Check Valves, by the technical program, makes axle no matter be laterally or vertically installs, all there will not be stuck phenomenon, make its action sensitiveer, number of times to be opened/closed is more, and the life-span is longer, utilize O RunddichtringO, make sealing effect better, during closure of check ring, after valve, there will not be the fluctuation of flow and pressure.
In order to achieve the above object, the technical solution of the utility model is achieved in that a kind of twin shaft Wafer Check Valves, comprise valve body, described valve body is circular, in hollow in valve body, valve rear end face is opening-like, valve body front-end face is provided with several transmission hole, include flap, valve gap and spring, described valve body front-end face medial center position is provided with the positioning shaft stretched out in valve body, described flap is made up of flap dish and flap shaft, the center, front end of described flap shaft is provided with positioning hole, positioning hole is sleeved on positioning shaft, described flap dish is arranged on the front end outer side of flap shaft, be pressed on valve body leading inside face before flap dish, described valve gap is provided with several transmission hole, axle bed hole is provided with in the middle of valve gap, described valve gap spinning is on valve rear end, flap shaft is installed in axle bed hole, one end of described spring is pressed on flap dish, the other end of spring is pressed on valve gap.
The outer rim place of the flap dish front-end face on described flap is provided with seal ring, and described seal ring is O RunddichtringO.
The face, front-end and back-end of described valve body is respectively arranged with the end face groove of several concentric annular.
Beneficial effect after employing technique scheme is: a kind of twin shaft Wafer Check Valves, pass through the technical program, when downstream pressure is greater than upstream pressure, the flap shaft on flap with the rapid action of flap dish, there will not be stuck phenomenon in axle bed hole, even if valve body chamber inner plane degree is poor, utilize the structure and material characteristic of " O " RunddichtringO, flap also can compress valve body, stops reverse fluid flow, long service life, secure safety is strong.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to cross-sectional schematic.
Fig. 3 is the rear view of Fig. 1.
In figure, 1 valve body, 2 transmission holes, 3 flaps, 4 valve gaps, 5 springs, 6 positioning shafts, 7 flap dishes, 8 flap shaft, 9 positioning holes, 10 axle bed holes, 11 seal rings, 12 end face grooves.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment in the utility model is described in further detail.
As Fig. 1--shown in Fig. 3, the twin shaft Wafer Check Valves that the utility model relates to, comprise valve body 1, described valve body 1 is circular, in hollow in valve body 1, valve body 1 ear end face is opening-like, valve body 1 front-end face is provided with two transmission holes 2, include flap 3, valve gap 4 and spring 5, described valve body 1 front-end face medial center position is provided with the positioning shaft 6 stretched out in valve body 1, described flap 3 is made up of flap dish 7 and flap shaft 8, the center, front end of described flap shaft 8 is provided with positioning hole 9, positioning hole 9 is sleeved on positioning shaft 6, described flap dish 7 is arranged on the front end outer side of flap shaft 8, flap dish 7 is pressed on valve body 1 leading inside face above, described valve gap 4 is provided with three transmission holes 2, axle bed hole 10 is provided with in the middle of valve gap 4, described valve gap 4 spinning is on valve body 1 rear end, flap shaft 8 is installed in axle bed hole 10, one end of described spring 5 is pressed on flap dish 7, the other end of spring 5 is pressed on valve gap 4.
The outer rim place of flap dish 7 front-end face on described flap 3 is provided with seal ring 11, and described seal ring 11 is O RunddichtringO 11.
The face, front-end and back-end of described valve body 1 is respectively arranged with the end face groove 12 of several concentric annular.
The utility model is applied in pipe-line system, needing the pipeline section two panels flange clamping twin shaft Wafer Check Valves of non-return, the power that the flowing of the water in tube road itself produces and opening and closing automatically, when power source conveying water, the forefront pressure of twin shaft Wafer Check Valves is greater than rear end pressure, water boosts flap 3 and moves backward, opens safety check, and water is carried to the back-end; If when water flows in the other direction, under the pressure of water and the effect of spring 5, flap 3 acts on valve body 1, owing to the flap dish 7 on flap 3 being provided with very strong flexible O RunddichtringO 11, the pressure of rear end is larger, the deformation of O RunddichtringO 11 is larger, compensate for the defect that valve body 1 chamber inner plane degree is poor, thus cuts off flowing.
The above, be only better possible embodiments of the present utility model, and be not used to limit scope of the present utility model.
Claims (3)
1. a twin shaft Wafer Check Valves, comprise valve body, described valve body is circular, in hollow in valve body, valve rear end face is opening-like, valve body front-end face is provided with several transmission hole, it is characterized in that, include flap, valve gap and spring, described valve body front-end face medial center position is provided with the positioning shaft stretched out in valve body, described flap is made up of flap dish and flap shaft, the center, front end of described flap shaft is provided with positioning hole, positioning hole is sleeved on positioning shaft, described flap dish is arranged on the front end outer side of flap shaft, be pressed on valve body leading inside face before flap dish, described valve gap is provided with several transmission hole, axle bed hole is provided with in the middle of valve gap, described valve gap spinning is on valve rear end, flap shaft is installed in axle bed hole, one end of described spring is pressed on flap dish, the other end of spring is pressed on valve gap.
2. twin shaft Wafer Check Valves according to claim 1, is characterized in that, the outer rim place of the flap dish front-end face on described flap is provided with seal ring, and described seal ring is O RunddichtringO.
3. twin shaft Wafer Check Valves according to claim 1, is characterized in that, the face, front-end and back-end of described valve body is respectively arranged with the end face groove of several concentric annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520163633.4U CN204493811U (en) | 2015-03-23 | 2015-03-23 | Twin shaft Wafer Check Valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520163633.4U CN204493811U (en) | 2015-03-23 | 2015-03-23 | Twin shaft Wafer Check Valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493811U true CN204493811U (en) | 2015-07-22 |
Family
ID=53573130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520163633.4U Active CN204493811U (en) | 2015-03-23 | 2015-03-23 | Twin shaft Wafer Check Valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493811U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931203A (en) * | 2017-04-28 | 2017-07-07 | 维沃移动通信有限公司 | A kind of pressure equalization module and electronic equipment |
-
2015
- 2015-03-23 CN CN201520163633.4U patent/CN204493811U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931203A (en) * | 2017-04-28 | 2017-07-07 | 维沃移动通信有限公司 | A kind of pressure equalization module and electronic equipment |
| CN106931203B (en) * | 2017-04-28 | 2019-01-04 | 维沃移动通信有限公司 | A kind of pressure equalization module and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210317 Address after: 201800 No. 1 Changchang Road, Jiading District, Shanghai Patentee after: WPG (SHANGHAI) SMART WATER PUBLIC Co.,Ltd. Address before: 102615 No. 1, business road, long Zi Ying Town, Daxing District, Beijing Patentee before: BEIJING WAPWPG TECHNOLOGY DEVELOPMENT Co.,Ltd. |