CN201236977Y - Gas backflow-proof check valve - Google Patents
Gas backflow-proof check valve Download PDFInfo
- Publication number
- CN201236977Y CN201236977Y CNU2008200550872U CN200820055087U CN201236977Y CN 201236977 Y CN201236977 Y CN 201236977Y CN U2008200550872 U CNU2008200550872 U CN U2008200550872U CN 200820055087 U CN200820055087 U CN 200820055087U CN 201236977 Y CN201236977 Y CN 201236977Y
- Authority
- CN
- China
- Prior art keywords
- check valve
- air
- valve body
- air inlet
- air outlet
- 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 - Lifetime
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Abstract
The utility model relates to the technical field of check valves, in particular to a check valve for preventing air current from back flow in a longitudinal central exhaust system in a house, which comprises a valve body, wherein, an air current channel is arranged inside the valve body; and an air inlet and an air outlet are respectively arranged at two ends of the air current channel. The check valve is characterized in that the air outlet is parallel to a horizontal plane approximately, and the air inlet is vertical to the horizontal plane. The check valve has the beneficial effects as follows: the check valve is installed under a suspended ceiling, a hose of a smoke exhauster is directly connected with the air inlet of the check valve after traversing through the suspended ceiling without being connected with the air inlet of the check valve by rotating 90 degrees, and the maintenance and the inspection are more convenient, and the appearance is more beautiful.
Description
[technical field]
The utility model relates to the safety check technical field, and a kind of specifically dwelling house is vertically concentrated the safety check that anti-air-flow flows backwards in the vent systems.
[background technique]
The venting check valve of technology is connected with range hood now, and the flue gas of range hood extraction is entered in the air outlet flue, and it has valve body, is provided with air-flow path in the valve body, is provided with suction port and air outlet at the two ends of air-flow path.Venting check valve is installed in the furred ceiling or the furred ceiling below, as be installed in the furred ceiling and must when making furred ceiling, stay maintenance, maintenance channel, extremely inconvenient in operation, as be installed in by the furred ceiling below, the flexible pipe that safety check is connected with range hood must be exposed, the mounting point of range hood generally below the furred ceiling and the exhaust outlet of range hood generally in furred ceiling, described flexible pipe must pass furred ceiling and turn 90 degrees and could connect with the safety check joint, this is not so good in the effect on attractive in appearance, therefore, there is certain defective in technology now.
[summary of the invention]
The purpose of this utility model provides the safety check that a kind of repair and maintenance anti-air-flow convenient, that the effect better appearance is installed flows backwards.
The technical solution of the utility model: the safety check that anti-air-flow flows backwards, comprise valve body, be provided with air-flow path in the valve body, the two ends of air-flow path are respectively equipped with suction port and air outlet.Described air outlet is roughly parallel to horizontal plane.Described suction port is perpendicular to horizontal plane, and the place is provided with valve block in the air outlet, and valve block is connected with valve body by the valve block rotating shaft.
The beneficial effects of the utility model: this safety check is installed in the furred ceiling below, the flexible pipe of range hood directly is connected with the suction port of safety check after passing furred ceiling, and need not turn 90 degrees again and could be connected with the suction port of safety check, safeguard, better appearance again simultaneously eaily aspect the maintenance.
[description of drawings]
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the sectional view of the A-A direction of Fig. 1.
Referring to Fig. 1, Fig. 2,1 is valve body; 2 is air-flow path; 3 is suction port; 4 is the air outlet; 5 is valve block; 6 is the valve block rotating shaft.
[specific embodiment]
Below in conjunction with the drawings and specific embodiments the utility model is described in detail:
Embodiment: the safety check referring to a kind of anti-air-flow of Fig. 1, Fig. 2 flows backwards, comprise valve body 1, be provided with air-flow path 2 in the valve body 1, air-flow path 2 two ends are respectively equipped with suction port 3 and air outlet 4.Described air outlet 4 is roughly parallel to horizontal plane.Described suction port 3 is perpendicular to horizontal plane, and 4 places are provided with valve block 5 in the air outlet, and valve block 5 is connected with valve body 1 by valve block rotating shaft 6.
Claims (1)
1, a kind of safety check of anti-air-flow refluence comprises valve body, is provided with air-flow path in the valve body, and the two ends of air-flow path are respectively equipped with suction port and air outlet, it is characterized in that: described air outlet is roughly parallel to horizontal plane, and described suction port is perpendicular to horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200550872U CN201236977Y (en) | 2008-01-25 | 2008-01-25 | Gas backflow-proof check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200550872U CN201236977Y (en) | 2008-01-25 | 2008-01-25 | Gas backflow-proof check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201236977Y true CN201236977Y (en) | 2009-05-13 |
Family
ID=40649708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200550872U Expired - Lifetime CN201236977Y (en) | 2008-01-25 | 2008-01-25 | Gas backflow-proof check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201236977Y (en) |
-
2008
- 2008-01-25 CN CNU2008200550872U patent/CN201236977Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |