CN2544153Y

CN2544153Y - Top fume exhausting check valve

Info

Publication number: CN2544153Y
Application number: CN 02217233
Authority: CN
Inventors: 梁子美; 梁秉国
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-05-08
Filing date: 2002-05-08
Publication date: 2003-04-09
Anticipated expiration: 2012-05-08

Abstract

The utility model relates to an upper exhaust smoke check valve which is adopted to resolve the problems of back draught and odor existing in kitchens of medium high-rise dwelling building. The technical proposal of the utility model comprises a valve body and a valve cover, which is characterized in that an articulated seat of the valve cover is positioned at the lower side of the outlet of the check valve; on the prolonged body at the back end of the articulated seat, the handle of the valve cover is articulated with a pull rod; the other end of the pull rod is articulated with the front end of a movable screw, on which a compression spring is installed; a movable screw supporting seat is positioned at the underside of the valve body and the rear end of the movable screw punctuates into a sliding hole of the supporting seat. The utility model is suitable for being used in gas exhaust duct of an oil smoke exhaust machine used in the kitchens of multistory of the medium high-rise dwelling building.

Description

Last smoke evacuation check valve

Technical field

The utility model relates to the check valve of kitchen flue.

Background technique

The user discharges kitchen flue gas simultaneously and enters common flue in middle and high layer dwelling house at present, flue gas phase mutual interference between normal each floor of generation, the stream field boundary becomes the eddy current state, and the discharging flue gas resistance is increased, thus produce that flue gas pours in down a chimney, taint of odour etc. directly influences living environment and is detrimental to health.Trace it to its cause is that the valve gap of check valve directly promotes to open by the smoke evacuation wind-force of cooker hood, after cooker hood shutdown stopping smoke evacuation, rely on valve gap to close valve from repeats bits, owing to belong to the down-draining type check valve structure, flue gas discharges at first down, and then by flue gas nature upward flow heavenwards, form the user of lower floor fume emission resistance and increase, this is the problem that needs solve.

The model utility content

The utility model technical issues that need to address provide a kind of upwards last smoke evacuation formula check valve of smoke evacuation, change flue gas downward row's defective earlier, avoid the generation of Now elephants such as flue gas pours in down a chimney, taint of odour.

The technical solution of the utility model comprises the check valve valve body and at the hinged valve gap of check valve valve body relief opening, the hinged seat that it is characterized in that the check valve valve gap is positioned at check valve relief opening downside, the valve gap handle is at the hinged pull bar of the extension body of hinged seat rear end, the other end of pull bar and a moving screw front end are hinged, a pressure spring is housed on the moving screw body of rod, has moving screw supporting base, moving screw rear portion to be through in the slide opening of supporting base at check valve valve body downside.

The beneficial effects of the utility model are after cooker hood is connected power supply, the wind-force of smoke evacuation blows the valve gap of check valve open, flue gas is promptly directly discharged up, after the cooker hood shutdown, the Top that pressure spring on the moving screw body of rod just pushes away moving screw forward, pull bar is subjected to screw rod simultaneously pushes away, and pull bar cuts out the generation that valve gap avoids flue gas to pour in down a chimney, go here and there distinguishing the flavor of the Now elephant by the valve gap handle.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model;

Accompanying drawing 2 is the plug-in type filtering box box frame schematic representation that are provided in the utility model inlet end;

Digital expression respectively is 1 valve gap among Fig. 1,2 valve bodies, 3 pull bars, 4 moving screws, 5 pressure springs, 6 nuts, 7 trim rings, 8 filtering boxs, 9 active carbon filtration cloth, 10 catchment cups, 11 screw bolt seats.

Embodiment

Shi Now mode of the present utility model be check valve valve body 2 relief opening downsides the hinged seat of valve gap 1 is set and under the valve body of valve gap hinged seat back Side establish moving screw 4 and screw bolt seat 11, the rear portion of moving screw is placed in the slide opening of screw bolt seat 11, preferably setting ball at the slide opening mouth slides when avoiding the screw rod deflection and is subjected to obstacle, be inserted in pressure spring 5 on the body of rod of screw rod 4, join nut 6 above the spring 5, the pressure of turn nut 6 can regulate pressure springs, one end of the front end of screw rod 4 and pull bar 3 is hinged, and the rear end of the other end of pull bar 3 and valve gap handle extension body is hinged.The inlet end of non-return valve body 2 preferably sets a filtering box 8, filtering box adopts the box frame of a band ribs of the fan shape skeleton and sets active carbon filtration cloth 9 in box frame both sides, active carbon filtration cloth adopts trim ring 7 to be fixed on the box frame, and the following dress catchment cup 10 of filtering box can receive the greasy dirt that flows into along filtering box box frame.

Claims

1, the check valve of discharging fume on comprises valve body, valve gap, the hinged seat that it is characterized in that the check valve valve gap is positioned at check valve relief opening downside, the valve gap handle is at the hinged pull bar of the extension body of hinged seat rear end, the other end of pull bar and a moving screw front end are hinged, on the moving screw body of rod pressure spring is housed, at check valve valve body downside the supporting base of moving screw is arranged, the moving screw rear portion is through in the slide opening of supporting base.

2, the smoke evacuation check valve of going up according to claim 1, the inlet end that it is characterized in that check valve has a filtering box, filtering box adopt the box frame of a band ribs of the fan shape skeleton and set active carbon filtration cloth in box frame both sides, active carbon filtration cloth adopts trim ring fixing on the box frame.