CN205013775U - Anti -return valving - Google Patents
Anti -return valving Download PDFInfo
- Publication number
- CN205013775U CN205013775U CN201520610053.5U CN201520610053U CN205013775U CN 205013775 U CN205013775 U CN 205013775U CN 201520610053 U CN201520610053 U CN 201520610053U CN 205013775 U CN205013775 U CN 205013775U
- Authority
- CN
- China
- Prior art keywords
- valve door
- support
- spigot baffle
- door device
- fluid flow
- 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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- Check Valves (AREA)
Abstract
The utility model relates to an anti -return valving, including a support and one install valve door baffle plate on the support, the support mounting is on the wall of through -flow pipeline, but valve door baffle plate's first end pivot is installed with rotating on the support, valve door baffle plate's second end is the free end to but optionally opens or closes the fluid flow path in the pipeline, valve door baffle plate have towards the first surface of fluid flow direction and dorsad the second surface of fluid flow direction, the first surface is set to recessedly, a sealing member setting is in on the support, be located the support with between the valve door baffle plate, the ora terminalis of the one end of sealing member is on a plane, and the ora terminalis of the other end is the slope form, has the high -order bit and is located the low position of high parts opposite side, the high -order bit borders on valve door baffle plate's free end, low position borders on valve door baffle plate's first end.
Description
Technical field
The utility model relates to a kind of back-flow preventer, particularly relates to a kind ofly to be arranged on the flush toilet in toilet or the anti-reflux valve door device in other drainage device.
Background technique
In the drainage that toilet uses, sewage or dirt lead to waste pipe via the drain opening of flush toilet.For flush toilet equipment conventional at present, in order to prevent sewage or dirt backflow, a kind of U-shaped trunnion device is installed usually between flush toilet drain opening and waste pipe, the larynx connected between drain opening and waste pipe is bent to U-shaped, to make water be deposited in U-shaped trunnion to play the effect of trapping, although the water structure of U-shaped trapping can be blocked in the air between waste pipe and indoor, but this U-shaped trunnion device also can only play limited anti-backflow function, have an opportunity to cause backflow phenomenon, and the existing U-shaped trunnion device position that takes up space is larger.In actual use, such device has the following disadvantages usually:
The first, the sewage impulse force of small flow may be not enough to the valve gap pushing drain opening open, can cause the accumulation of sewage;
The second, valve gap is easily subject to the impact of air pressure when closing, and is difficult to get back to closed state from open mode reposefully, cause the wake flow of sewage not drain swimmingly, so U-shaped trapping can cause backflow phenomenon because of ponding or air pressure problem.
Model utility content
The technical problems to be solved in the utility model is, for the shortcoming existed in prior art, provides a kind of anti-reflux valve door device, effectively can prevent backflow phenomenon.
The technical solution of the utility model is achieved in that a kind of anti-reflux valve door device, comprise a support and a rack-mount spigot baffle, support installing is on the wall of through-flow channel, the first end of spigot baffle is pivotally mounted on support, second end of spigot baffle is free end, thus optionally open or close the flow path of the fluid in pipeline, spigot baffle has the second surface of first surface towards fluid flow direction and fluid flow direction dorsad, and described first surface is arranged to recessed; One Sealing is arranged on support, and between support and spigot baffle, the ora terminalis of one end of described Sealing is in a plane, the ora terminalis of the other end is slope, there is high-order bit and the low position being positioned at described high parts opposite side, high-order bit adjoins the free end of spigot baffle, and low position adjoins the first end of spigot baffle.
As selection, the second surface of described spigot baffle can be set to plane.Further, the second surface of spigot baffle is being arranged to hypotenuse or fillet near its free end.
Spigot baffle is preferably on the pivot in the support that is arranged on and is arranged on tube wall.
Preferably, described fluid flow path is limited by water intake, and periphery and the described water intake periphery of described first surface are suitable.
The planar ends of described Sealing also can arrange the flange extended radially outward.
Anti-backflow valve of the present utility model and tube connector can make draining become easier, and make valve more steady when closing, and being conducive to sewage wake flow has the time long as far as possible discharge from opening and prevent gas backstreaming.
Accompanying drawing explanation
Fig. 1 is the sectional view of an embodiment of anti-backflow valve of the present utility model;
Fig. 2 is the cross-sectional view of Sealing shown in Fig. 1;
Fig. 3 is the perspective view of Sealing shown in Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described.
As shown in Figure 1, the anti-reflux valve door device that the utility model provides comprises: support 1, spigot baffle 2 and the pivot 3 be installed in rotation on by spigot baffle 2 on support 1, wherein spigot baffle 2 pivotally 3 can carry out pivot movement under the effect of current and air-flow.
Spigot baffle 2 has first surface 21 and second surface 22, wherein first surface 21 towards the flow direction of sewage, and the flow direction of second surface 22 sewage dorsad.In the embodiment shown in fig. 1, first surface 21 is arranged to concave surface, its objective is to make draining convenient.Those skilled in the art will appreciate that the valve surface (convex surface or plane) compared to the dispersion of possibility build-up of pressure, concave surface of the present utility model can concentrate the pressure of discharging current and air-flow better, thus produces larger thrust promotion valve.In addition, the structure of concave surface makes the weight of valve become lighter, is also conducive to water impact and opens valve.
In addition, the utility model is provided with single sided taper face 23 at the free end of spigot baffle 2, single sided taper face 23 is connected with the second surface 22 of spigot baffle 2, be arranged so that so effectively to guide the air-flow of below flow along the direction of plane of inclination 23 and bring pressure to bear on this plane of inclination 23 when valve closing, thus make spigot baffle 2 when closing more steadily and closing velocity slow down, be conducive to the time that sewage wake flow grown as far as possible and discharge from opening and prevent gas backstreaming, reduction sewage accumulates in the situation in toilet waste pipe.
With reference to Fig. 2 and Fig. 3, the anti-reflux valve door device of model utility of the present invention also comprises one and is arranged on Sealing 4 on support 1, the seal 4 ringwise, between support and spigot baffle.The annular wall 41 that Sealing 4 has restriction one center hole and the flange 42 extended radially outward from one end of annular wall 41.Annular wall has the low position 412 that a high-order bit 411 and is positioned at high-order bit offside, and all the other positions between high-order bit and low position are then progressively transition from high to low, make annular wall 41 be slope away from one end of flange 42.Be arranged on after above support 1, low position and the spigot baffle 2 of annular wall 41 adjoin, and high-order bit then adjoins with the lower end ora terminalis of spigot baffle 2; Meanwhile, the flange 42 of Sealing 4 insert bottom support 1 arrange groove in and be close to each cell wall; Like this, make each edge of Sealing 4 be close to support 1 and spigot baffle 2, thus avoid ordinary seals to cause situation about misplacing when mounted due to stiction.
When the non-draining of flush toilet, spigot baffle of the present utility model is in vertical position with closed water inlet under the Action of Gravity Field of himself.When flush toilet draining, valve is pushed open by the impact of sewage, and make its pivotally pivotable, the valve first surface of concave can utilize air-flow and current to make the angle of valve opening become larger, the time of opening is longer, thus more sewage is discharged in external pipe by the second portion of tube connector.When draining stops valve due to Action of Gravity Field get back to vertical position, free end plane of inclination steadily and lentamente closed to prevent sewage and dirty gas from refluxing with glue limit.
For the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (6)
1. an anti-reflux valve door device, it is characterized in that, comprise a support and installation spigot baffle on the bracket, described support installing is on the wall of through-flow channel, the first end of described spigot baffle is pivotally mounted on described support, second end of described spigot baffle is free end, thus the fluid flow path optionally opened or closed in pipeline, described spigot baffle has the second surface of first surface towards described fluid flow direction and described fluid flow direction dorsad, and described first surface is arranged to recessed; One Sealing is arranged on the bracket, between described support and described spigot baffle, the ora terminalis of one end of described Sealing is in a plane, the ora terminalis of the other end is slope shape, there is high-order bit and the low position being positioned at described high parts opposite side, described high-order bit adjoins the free end of described spigot baffle, and described low position adjoins the first end of described spigot baffle.
2. anti-reflux valve door device as claimed in claim 1, it is characterized in that, the second surface of described spigot baffle is plane.
3. anti-reflux valve door device as claimed in claim 1 or 2, is characterized in that, the second surface of described spigot baffle is being arranged to hypotenuse or fillet near its free end.
4. anti-reflux valve door device as claimed in claim 1 or 2, is characterized in that, described spigot baffle is arranged on the pivot in the support that is arranged on described tube wall.
5. anti-reflux valve door device as claimed in claim 1 or 2, it is characterized in that, described fluid flow path is limited by water intake, and periphery and the described water intake periphery of described first surface are suitable.
6. anti-reflux valve door device as claimed in claim 1, it is characterized in that, the one end that flushes of described Sealing has the flange extended radially outward.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610053.5U CN205013775U (en) | 2015-08-13 | 2015-08-13 | Anti -return valving |
| HK15111021.3A HK1208123A2 (en) | 2015-08-13 | 2015-11-09 | A backflow prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610053.5U CN205013775U (en) | 2015-08-13 | 2015-08-13 | Anti -return valving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205013775U true CN205013775U (en) | 2016-02-03 |
Family
ID=55212379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520610053.5U Expired - Fee Related CN205013775U (en) | 2015-08-13 | 2015-08-13 | Anti -return valving |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN205013775U (en) |
| HK (1) | HK1208123A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113474523A (en) * | 2019-02-25 | 2021-10-01 | 轻易清洁解决方案有限责任公司 | Trap with detachable silicone baffle |
-
2015
- 2015-08-13 CN CN201520610053.5U patent/CN205013775U/en not_active Expired - Fee Related
- 2015-11-09 HK HK15111021.3A patent/HK1208123A2/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113474523A (en) * | 2019-02-25 | 2021-10-01 | 轻易清洁解决方案有限责任公司 | Trap with detachable silicone baffle |
| CN113474523B (en) * | 2019-02-25 | 2024-03-08 | 轻易清洁解决方案有限责任公司 | Catcher with detachable silicone baffle |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1208123A2 (en) | 2016-02-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: Room 11, building 1101, Xinxing Arts crafts emporium, 22 Jian FA street, Tuen Mun, Hongkong, China Patentee after: T. STAR HOLDINGS LTD. Address before: Huali Industrial Center No. 459-469 China Hongkong Tsuen Wan 13 Castle Peak Road Building F9 room Patentee before: T. STAR HOLDINGS LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20180813 |