CN201954058U

CN201954058U - Odor tainting prevention check valve for range hood

Info

Publication number: CN201954058U
Application number: CN2011200771858U
Authority: CN
Inventors: 王震; 解焕强
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-16
Filing date: 2011-03-16
Publication date: 2011-08-31
Anticipated expiration: 2021-03-16

Abstract

The utility model discloses an odor tainting prevention check valve for a range hood, which is mainly characterized in that a circular end surface formed by two semicircular valve plates (2) through butt joint is obliquely and rotatablely connected with an inner cavity of a valve body in the vertical direction and is engaged and sealed with a vertical inclined end surface arranged on an oil smoke pipe (1). When the range hood works, oil smoke gas exhausted from the range hood conveniently blows the two semicircular valve plates to be rotated and opened for externally and smoothly carrying out smoke gas delivery. When the range hood stops working, only the two semicircular valve plates which are vertically obliquely and rotatablely connected with the inner cavity of the valve body automatically fall down by own inclined and downward weight to the butt joint for forming the circular end surface, and the circular end surface is engaged and sealed with the vertical inclined end surface of the oil smoke pipe. Oil liquid pasted on the two valve plates in the oil smoke pipe through oil smoke flowing automatically slides down along the inclined valve plate surfaces to enter the inner cavity of the oil smoke pipe and is outwards discharged together with the discharged oil smoke, and the goal that the valve plates are not easy pasted and hung by the oil liquid is reached, and the opening/closing and the rotation are flexible and reliable. Mosquitoes and flies or/and oil smoke foreign odor in building indoor public oil smoke passages are effectively prevented from entering a kitchen, and the sanitary environment of the kitchen is obviously improved.

Description

Kitchen ventilator is prevented the taint of odour safety check

(1) technical field: the utility model relates to the device that kitchen fume machine dispatch oil smoke is opened or closed; Be specifically related to the anti-taint of odour safety check of a kind of kitchen ventilator.

(2) background technique: the people kitchen uses kitchen ventilator to carry out the oil smoke dispatch in the prior art, is to join through the indoor outside dispatch in public oil smoke road of building by safety check and the connecting tube that is connected in its upper end.Continue into the present from the eighties of last century the eighties, the structure of described safety check remains that lateral rotation is connected with two valve blocks (as the safety check on " China is board too " kitchen ventilator) in the fume tube of valve body.The soot gas of discharging by kitchen ventilator during work is opened two valve blocks and is carried out the oil smoke dispatch; When quitting work, two valve blocks that described lateral rotation is connected with fall by its deadweight and close the fume tube inner chamber is involutory.Since described valve block for a long time in fume tube through the circulation of oil smoke, the very easy valve block adhesion with two unlatchings of the fluid that its surface is stained with tangles the involutory fume tube of closing that can't fall, make the inner chamber of described fume tube be in normal open state always, cause the mosquitos and flies in the indoor public oil smoke of building road or/and the oil smoke peculiar smell directly enters the kitchen by connecting tube, seriously influenced the hygienic conditions in kitchen.

(3) summary of the invention: at the deficiency that above-mentioned prior art exists, the purpose of this utility model is to provide a kind of kitchen ventilator to prevent the taint of odour safety check, is intended to realize opening or closing the valve block flexibility and reliability, to reach the hygienic conditions that improve the kitchen.

For achieving the above object, the technical solution of the utility model is achieved in that this kitchen ventilator prevents the taint of odour safety check, comprises the fume tube that valve body and its inner chamber ring set are connected with; It is to be rotatably connected with the circular end surface that two semicircle valve block butt joints are linked to be in described body cavity fore-and-aft tilt, and the fore-and-aft tilt end joined that is provided with described fume tube seals.

When implementing technique scheme, the utility model is to be connected with groove shape backbar on described fume tube fore-and-aft tilt end face.

The utility model is by taking said structure, and during work, the soot gas that kitchen ventilator is discharged blows two semicircle valve blocks rotation unlatchings easily and externally carries out the oil smoke dispatch swimmingly.When kitchen ventilator quits work, two semicircle valve blocks that described body cavity fore-and-aft tilt is rotatably connected with, fore-and-aft tilt end joined that butt joint is linked to be circular end surface and fume tube seals to rely on its weight under being tilted to fall voluntarily.Two fluid that the semicircle valve block is stained with through the oil smoke circulation in fume tube, landing enters the fume tube inner chamber together with together outwards dispatch of the oil smoke of discharging voluntarily along the surface of inclination valve block, realized that valve block is not subject to the fluid adhesion and tangles, opened or closed the rotation flexibility and reliability.Prevent the mosquitos and flies in the indoor public oil smoke of building road effectively or/and the oil smoke peculiar smell enters the kitchen, improved the hygienic conditions in kitchen significantly.

(4) description of drawings:

Fig. 1 is the sectional view of the utility model valve block 2 closed states;

Fig. 2 is the right elevation with reference to Fig. 1 valve block 2 opening states;

Fig. 3 be among Fig. 2 A-A to sectional view;

Fig. 4 is that the axle of the utility model Fig. 3 is surveyed view.

(5) embodiment: Fig. 1-shown in Figure 4.This kitchen ventilator is prevented the taint of odour safety check, comprises the fume tube 1 that the valve body that is made of the engineering plastics injection moulding and its inner chamber ring set are connected with; It is that upper and lower end in described body cavity fore-and-aft tilt is provided with shaft seat, be rotatably connected with the upper and lower rotating shaft (with reference to figure 1, shown in Figure 4) of two semicircle valve blocks 2 in the described shaft seat, the fore-and-aft tilt end joined sealing that circular end surface that described two semicircle valve blocks butt joint is linked to be and described fume tube 1 are provided with.For increasing by circular end surface that two semicircle valve blocks 2 butt joint is linked to be and the sealing of fume tube fore-and-aft tilt end joined tightly, on described fume tube 1 fore-and-aft tilt end face, be connected with groove shape backbar 3 usually; On the jointing end face periphery of described two semicircle valve blocks 2, inlay and be connected with Stamping Steel Ribbon 4 (shown in Figure 3).Connect the sealing that end face is connected with the public flue longitudinal wall of building for strengthening valve body, common inlaying on the connection end face periphery of described valve body is connected with seal ring 5 (Fig. 1, shown in Figure 3).The utility model is installed when connecting, and will inlay the valve body connection end face and the indoor public flue longitudinal wall involutory splicing in surface of building that are connected with seal ring 5 and be connected, and the smoking soot hole of valve body the other end fume tube 1 cylindrical by connecting tube and kitchen ventilator joined.During work, the soot gas that kitchen ventilator is discharged, blow the 2 rotation unlatchings of two semicircle valve blocks easily by connecting tube and externally carry out the oil smoke dispatch swimmingly, this moment two valve block pivoting ends outer surface on the positioning convex strip 7 that the is connected with location (Fig. 1, shown in Figure 3) that joins, guaranteed the setting value that two valve block opening angles reach.This moment, two valve block pivoting ends placed in the groove of backbar 3, had avoided the friction on valve block its pivoting end and backbar surface when rotating, and had realized that valve block rotates flexible (shown in Figure 3).When kitchen ventilator quits work, two semicircle valve blocks 2 that described body cavity fore-and-aft tilt is rotatably connected with, fore-and-aft tilt end joined that butt joint is linked to be circular end surface and fume tube 1 seals to rely on its weight under being tilted to fall voluntarily.Two fluid that semicircle valve block 2 is stained with through the oil smoke circulation in fume tube, landing enters fume tube 1 inner chamber together with together outwards dispatch of the oil smoke of discharging voluntarily along inclination valve block surface, realized that valve block is not subject to the fluid adhesion and tangles, opened or closed rotation flexibility and reliability (Fig. 1-shown in Figure 4).Prevent the mosquitos and flies in the indoor public oil smoke of building road effectively or/and the oil smoke peculiar smell enters the kitchen, improved the hygienic conditions in kitchen significantly.

The above only is a preferred implementation of the present utility model.Be noted that for the person of ordinary skill of the art; under the prerequisite that does not break away from the principle of the invention; need not other technical characteristics that the process creative work just can be associated; can also make the modification or the improvement of some kinds of basic identical modes; realize essentially identical function and produce essentially identical effect; these variations should be considered as equivalent feature, all belong within the protection domain of the utility model patent.

Claims

1. the anti-taint of odour safety check of kitchen ventilator comprises the fume tube (1) that valve body and its inner chamber ring set are connected with; It is characterized in that: it is to be rotatably connected with the circular end surface that two semicircle valve blocks (2) butt joint is linked to be in described body cavity fore-and-aft tilt, and the fore-and-aft tilt end joined that is provided with described fume tube (1) seals.

2. kitchen ventilator according to claim 1 is prevented the taint of odour safety check, it is characterized in that: be connected with groove shape backbar (3) on described fume tube fore-and-aft tilt end face.

3. kitchen ventilator according to claim 1 and 2 is prevented the taint of odour safety check, it is characterized in that: inlay on the jointing end face periphery of described two semicircle valve blocks and be connected with Stamping Steel Ribbon (4).

4. kitchen ventilator according to claim 3 is prevented the taint of odour safety check, it is characterized in that: inlay on the connection end face periphery of described valve body and be connected with seal ring (5).