CN2605439Y - Bottom-axel type automatic flow-guiding gas-discharging non-return valve - Google Patents
Bottom-axel type automatic flow-guiding gas-discharging non-return valve Download PDFInfo
- Publication number
- CN2605439Y CN2605439Y CN 03232886 CN03232886U CN2605439Y CN 2605439 Y CN2605439 Y CN 2605439Y CN 03232886 CN03232886 CN 03232886 CN 03232886 U CN03232886 U CN 03232886U CN 2605439 Y CN2605439 Y CN 2605439Y
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- China
- Prior art keywords
- valve
- valve block
- air
- air outlet
- valve plate
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- Expired - Fee Related
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Mechanically-Actuated Valves (AREA)
- Check Valves (AREA)
Abstract
An automatic lower punch shaft diversion exhaust check valve is provided with a valve body and an air channel arranged inside the valve body. Both end parts of the air channel are respectively provided with an inlet and an outlet. A valve plate arranged on the outlet end and the valve body are in rotating connection through a valve plate shaft. The valve plate shaft is arranged on the lower position of the outlet bottom. A fixed counterweight is arranged on the lower part of the valve plate, which is characterized in that when the valve is open, the valve plate is tilted toward to the air vent direction to guide the flow running upward. Not only the resistance formed inside the air vent by the air flow in the valve body is reduced, but also the diversion system basically does not occupy the air vent space. The centre of gravity of the valve plate is always inclined to the inlet direction so that the return of the shut state of valve plate from an unlock state can be ensured.
Description
Technical field
The utility model relates to a kind of dwelling house and vertically concentrates the valve that connects vertical air outlet flue and exhaust mechanical device in the vent systems, especially a kind of venting check valve.
Back of the body border technology
Existing dwelling house vertically concentrates the venting check valve of vent systems mainly by valve body, be arranged at the air-flow path in the valve body, the two end part of described air-flow path are provided with suction port and air outlet respectively, the end of air outlet is provided with valve block, the valve block rotating shaft of valve block is arranged on the upper position that leans on of valve block, valve block tilts towards the suction port direction, blown at the exhaust process middle valve plate and to be opened several angle, but valve block is still done tiltedly towards the suction port direction, its gravity all produces down pressure to the air-flow of air-flow path all the time, after making air-flow enter vertical air outlet flue a process of dashing is arranged downwards, just rise then with the air-flow of vertical air outlet flue is past, therefore will inevitably vertically produce certain resistance in the air outlet flue, for eliminating above-mentioned resistance, the indivedual employing adds 90 degree water conservancy diversion elbows at the place, air outlet, if elbow is done to such an extent that too little its air displacement can not satisfy the demands again, therefore again will inevitably be enough big, it must take the space in the air outlet flue.There is defective in therefore existing venting check valve.
The model utility content
The purpose of this utility model is that the position of venting check valve valve block rotating shaft is improved, and provides a kind of resistance little, does not take the automatic water conservancy diversion venting check valve of high efficiency lower shaft formula in air outlet flue space substantially.
The automatic water conservancy diversion venting check valve of lower shaft formula of the present utility model has valve body, is arranged at the air-flow path in the valve body, the two end part of described air-flow path are provided with suction port and air outlet respectively, end, described air outlet is provided with valve block, described valve block and described valve body are rotatably connected by the valve block rotating shaft, described valve block rotating shaft is arranged on exhaust outlet bottom lower position, and described safety check tilts to the suction port direction in off position the time.Described valve block is deflated air-flow effect that machinery the produces air outlet of blowing off, and steering flow is towards up.For valve block after exhaust machinery is quit work can revert to closed condition smoothly, can fixed weight be set in the bottom of valve block, regulate the gravity centre distribution of valve block, make the valve block center of gravity be partial to the suction port direction all the time.
The utility model compared with prior art has following advantage: flow up by the air-flow in the valve block guiding valve body under exhaust condition, both reduced the resistance that air-flow forms in the valve body in air outlet flue, flow guide system does not take space in the air outlet flue again, be provided with the counterweight of regulating center of gravity in the bottom of valve block, ensured and to have got back on the exhaust outlet smoothly after valve block is blown open and cover exhaust outlet.
Content of the present utility model further illustrates with the following Examples, but content of the present utility model related content in being not limited only to implement.
Description of drawings
Fig. 1 is the plan view of venting check valve among the embodiment;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is an A-A direction sectional view;
Fig. 4 is the left view of Fig. 1, wherein:
(1) valve body; (2) suction port; (3) air outlet; (4) valve block; (5) valve block rotating shaft; (6) fixed weight; (7) rotary shaft rack.
Embodiment
Shown in Fig. 1-4, the automatic water conservancy diversion venting check valve of lower shaft formula in the present embodiment has valve body 1, is arranged at the air-flow path in the valve body 1, the two ends of described air-flow path are respectively equipped with suction port 2, air outlet 3, the end of described air outlet 3 is provided with valve block 4, and the rotary shaft rack 7 on described valve block 4 and the described valve body 1 is rotatably connected by valve block rotating shaft 5.Described valve block rotating shaft 5 is arranged on air outlet 3 bottom lower positions, when venting check valve is in closed condition, described valve block 4 tilts towards suction port 2 directions, and relies on self gravitation to cover air outlet 3 to reach and prevent that gas in the air outlet flue from blowing back into the effect in room by described venting check valve.Described valve block 4 is deflated air-flow effect that machinery the produces air outlet 3 of blowing off and described safety check is opened carry out exhaust, and this moment, valve block 4 tilted towards the air outlet flue direction, and steering flow is towards up.Described valve block 4 bottoms are provided with fixed weight power, by the gravity centre distribution that described counterweight 6 is regulated valve block 4, the center of gravity of valve block 4 is compiled all the time to suction port 2 directions, thereby guaranteed described safety check folding freely.
Claims (4)
1, the automatic water conservancy diversion venting check valve of a kind of lower shaft formula, has valve body, be arranged at the air-flow path in the valve body, described air-flow path two end part are provided with suction port, air outlet, valve block respectively and are arranged at end, described air outlet, and described valve block and described valve body are rotatably connected by the valve block rotating shaft.
2, venting check valve according to claim 1 is characterized in that: described valve block rotating shaft is arranged on bottom, air outlet lower position.
3, its feature of venting check valve according to claim 1: be to be provided with fixed weight in described valve block bottom.
4, venting check valve according to claim 1 is characterized in that: described valve block tilts and covers the air outlet towards the suction port direction during closed condition, and during opening state, described valve block flows up towards air outlet flue direction inclined lead air-flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232886 CN2605439Y (en) | 2003-01-17 | 2003-01-17 | Bottom-axel type automatic flow-guiding gas-discharging non-return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232886 CN2605439Y (en) | 2003-01-17 | 2003-01-17 | Bottom-axel type automatic flow-guiding gas-discharging non-return valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2605439Y true CN2605439Y (en) | 2004-03-03 |
Family
ID=34165458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03232886 Expired - Fee Related CN2605439Y (en) | 2003-01-17 | 2003-01-17 | Bottom-axel type automatic flow-guiding gas-discharging non-return valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2605439Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206561A (en) * | 2013-05-02 | 2013-07-17 | 武汉大学 | Energy-saving reversed-opening type flap valve |
| CN105793649A (en) * | 2013-12-05 | 2016-07-20 | 庆东纳碧安株式会社 | Reverse flow prevention apparatus for common exhaust flue and combustion apparatus having same |
| CN106369199A (en) * | 2016-10-28 | 2017-02-01 | 殷晓冬 | Self-gravity valve |
| US11092279B2 (en) | 2019-01-25 | 2021-08-17 | Shenzhen Diepin Technology Co., Ltd | Foldable device and foldable fan and foldable table lamp applicable thereto |
-
2003
- 2003-01-17 CN CN 03232886 patent/CN2605439Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206561A (en) * | 2013-05-02 | 2013-07-17 | 武汉大学 | Energy-saving reversed-opening type flap valve |
| CN105793649A (en) * | 2013-12-05 | 2016-07-20 | 庆东纳碧安株式会社 | Reverse flow prevention apparatus for common exhaust flue and combustion apparatus having same |
| CN105793649B (en) * | 2013-12-05 | 2017-10-31 | 庆东纳碧安株式会社 | Concentrate exhaust uptake anti-backflow device and possess this burner |
| CN106369199A (en) * | 2016-10-28 | 2017-02-01 | 殷晓冬 | Self-gravity valve |
| US11092279B2 (en) | 2019-01-25 | 2021-08-17 | Shenzhen Diepin Technology Co., Ltd | Foldable device and foldable fan and foldable table lamp applicable thereto |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |