CN201273388Y

CN201273388Y - Check valve of flue gas chimney

Info

Publication number: CN201273388Y
Application number: CNU2008202103464U
Authority: CN
Inventors: 韩文强
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-28
Filing date: 2008-09-28
Publication date: 2009-07-15
Anticipated expiration: 2018-09-28

Abstract

The utility model relates to a flue gas path retaining valve, comprising a barrel, an oil smoke channel and a valve block which are both arranged in the barrel, and is characterized in that two ends of the oil smoke channel are respectively an air intake and an air outlet, the valve block is rotationally connected with the shell wall of an port portion of the air intake through a valve block rotation shaft, an axial center line of the valve block rotation shaft is deviated from the gravity center of the valve block, a sealing retainer and an outer sealing retainer are fixed at the margin of the air intake and are far from a flue gas path, when in discharging smoke, after the valve block is opened, the smoothness of the longitudinal flue gas path cannot be basically blocked, the oil smoke can be discharged without being influenced, because the shell wall of the lower portion of the air outlet plays a blocking function to the oil smoke in the flue gas path, the retaining effect of oil smoke is enhanced.

Description

A kind of gas flue check valve

Technical field

The utility model relates to the gas flue check valve that uses in the public gas flue in a kind of kitchen.

Background technique

The gas flue check valve is mounted in a kind of device in the flue of residential building kitchen, is used for preventing to be discharged into the oil smoke adverse current of gas flue.Existing gas flue check valve comprises cylindrical shell, is arranged on oil smoke passage and valve block in the cylindrical shell, the two ends of oil smoke passage are respectively intake grill, exhaust outlet, valve block is rotatably connected on the shell wall of exhaust outlet by the valve block rotating shaft of level, and the valve block rotating shaft is positioned at position on the upper side, valve block center.When not discharging fume, valve block covers at the exhaust outlet place owing to be subjected to self gravitation; During smoke evacuation, the plane at valve block place is in substantially horizontal, the valve block of opening can hinder the rising of flue gas in vertical gas flue, particularly under the situation of the shared vertical flue of multi-storey residential buildings multilayer, the valve block of every layer open all can have a strong impact on the unimpeded of gas flue, make the deleterious of cooking-fume discharging, particularly influence the non-return effect of oil smoke.

Summary of the invention

The purpose of this utility model provides and does not a kind ofly influence that vertical flue is unimpeded, the non-return effective gas flue check valve of oil smoke.

For achieving the above object, the utility model is by the following technical solutions:

Gas flue check valve described in the utility model, comprise cylindrical shell, be arranged on oil smoke passage and valve block in the cylindrical shell, the two ends of oil smoke passage are respectively intake grill, exhaust outlet, it is characterized in that: valve block is rotatably connected on the shell wall of intake grill oral area by the valve block rotating shaft, and the shaft axis of valve block rotating shaft departs from the center of gravity of valve block; The intake grill edge is fixed with Sealing shield ring and external sealed back-up ring, and they are located at the inside and outside both sides of valve block respectively.

As a kind of improvement, the shaft axis of described valve block rotating shaft is a substantially horizontal, is positioned at the top of valve block center of gravity; Sealing shield ring, external sealed back-up ring are located at top, the below of valve block rotating shaft respectively; The top edge of valve block is corresponding with Sealing shield ring, and the lower edge of valve block is corresponding with the external sealed back-up ring.

Improve as another kind, the shaft axis of described valve block rotating shaft and horizontal plane intersect, and Sealing shield ring, external sealed back-up ring are located at the both sides of valve block rotating shaft respectively.

Be acclivitous inclined-plane between the bottom of above-mentioned exhaust outlet and the top, its bottom port is corresponding to the distance of valve block remote edge with the valve block rotating shaft with the distance between the intake grill bottom port.

Valve block of the present utility model is arranged on the oral area of intake grill, away from gas flue, when smoke evacuation, after valve block is opened, basically can not hinder the unimpeded of vertical gas flue, can not have influence on the discharging oil smoke, and, improve the non-return effect of oil smoke owing to the barrier effect of exhaust outlet bottom shell wall to oil smoke in vertical gas flue.

Description of drawings

Fig. 1 is a kind of embodiment's of the utility model a structural representation;

Fig. 2 is the right elevation of Fig. 1;

Fig. 3 is the another kind of embodiment's of the utility model a structural representation;

Fig. 4 is the third embodiment's of the utility model a structural representation;

Fig. 5 is the working state schematic representation of the utility model when smoke evacuation.

Embodiment

The utility model will be further described below in conjunction with the drawings and specific embodiments.

A kind of gas flue check valve as shown in Figure 1 and Figure 2, comprises cylindrical shell 1, is arranged on oil smoke passage and valve block 4 in the cylindrical shell 1, and the two ends of oil smoke passage are respectively intake grill 2, exhaust outlet 7.Valve block 4 is rotatably connected on by valve block rotating shaft 5 on the shell wall of intake grill 2 oral areas, and the shaft axis of valve block rotating shaft 5 is a substantially horizontal, is positioned at the top of valve block 4 centers of gravity; The top of valve block rotating shaft 5, below are respectively equipped with Sealing shield ring 3, external sealed back-up ring 6, they all are fixed on intake grill 2 edges, and be located at the inside and outside both sides of valve block 4 respectively, the inboard of the top edge of valve block 4 is corresponding with Sealing shield ring 3, and the outside of the lower edge of valve block 4 is corresponding with external sealed back-up ring 6.

As second kind of embodiment of the present utility model, as shown in Figure 4, the shaft axis of described valve block rotating shaft 5 and horizontal plane intersect, and Sealing shield ring 3, external sealed back-up ring 6 are located at the both sides of valve block rotating shaft 5 respectively.Wherein, as a kind of special case, the shaft axis of described valve block rotating shaft 5 is vertical with horizontal plane, and Sealing shield ring 3, external sealed back-up ring 6 are located at the and arranged on left and right sides of valve block rotating shaft 5 respectively.Like this, when valve block 4 is opened, vertical with horizontal plane.

In order to make rising, the discharge that oil smoke can be more unimpeded, in the third embodiment of the present utility model, be acclivitous inclined-plane between the top and bottom of described exhaust outlet 7, as Fig. 3, shown in Figure 5, its underpart port is corresponding to the distance of valve block 4 remote edges with valve block rotating shaft 5 with the distance between intake grill 2 lower port.

When not discharging fume, valve block 4 covers at intake grill 2 under the self gravitation effect, is in closed state, can prevent that oil smoke refluxes in the kitchen by the oil smoke passage in vertical flue.During smoke evacuation, the thrust of the wind that valve block 4 is discharged and be in open mode, oil smoke is discharged into vertical flue by the oil smoke passage, and then rises and discharge.Because valve block 4 is installed in the oral area of intake grill 2, away from exhaust outlet 7, the valve block 4 that is in open mode so can not hinder the unimpeded of vertical flue yet.In addition, distance and distance corresponding, the such structural design of valve block rotating shaft 5 to valve block 4 remote edges between exhaust outlet 7 lower port and intake grill 2 lower port can prevent from the oil smoke adverse current that rises to have improved non-return effect as far as possible.

Claims

1, a kind of gas flue check valve, comprise cylindrical shell (1), be arranged on oil smoke passage and valve block (4) in the cylindrical shell (1), the two ends of oil smoke passage are respectively intake grill (2), exhaust outlet (7), it is characterized in that: valve block (4) is rotatably connected on the shell wall of intake grill (2) oral area by valve block rotating shaft (5), and the shaft axis of valve block rotating shaft (5) departs from the center of gravity of valve block (4); Intake grill (2) edge is fixed with Sealing shield ring (3) and external sealed back-up ring (6), and they are located at the inside and outside both sides of valve block (4) respectively.

2, gas flue check valve according to claim 1 is characterized in that: the shaft axis of described valve block rotating shaft (5) is a substantially horizontal, is positioned at the top of valve block (4) center of gravity; Sealing shield ring (3), external sealed back-up ring (6) are located at top, the below of valve block rotating shaft (5) respectively; The top edge of valve block (4) is corresponding with Sealing shield ring (3), and the lower edge of valve block (4) is corresponding with external sealed back-up ring (6).

3, gas flue check valve according to claim 1 is characterized in that: the shaft axis of described valve block rotating shaft (5) and horizontal plane intersect, and Sealing shield ring (3), external sealed back-up ring (6) are located at the both sides of valve block rotating shaft (5) respectively.

4, gas flue check valve according to claim 3 is characterized in that: the shaft axis of described valve block rotating shaft (5) is vertical with horizontal plane, and Sealing shield ring (3), external sealed back-up ring (6) are located at the and arranged on left and right sides of valve block rotating shaft (5) respectively.

5, according to claim 2 or 3 described gas flue check valves, it is characterized in that: be acclivitous inclined-plane between the bottom of described exhaust outlet (7) and the top, its bottom port is corresponding to the distance of valve block (4) remote edge with valve block rotating shaft (5) with the distance between intake grill (2) bottom port.