CN202674405U

CN202674405U - Flue check valve

Info

Publication number: CN202674405U
Application number: CN 201220242510
Authority: CN
Inventors: 刘冬
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-28
Filing date: 2012-05-28
Publication date: 2013-01-16
Anticipated expiration: 2022-05-28

Abstract

The utility model discloses a flue check valve. The flue check valve comprises a base, a check valve, a reducing nipple and a magnet, wherein one end of the check valve is connected with the base, while the other end of the check valve is connected with the reducing nipple; the check valve is cylindrical and composed of a valve body and a ventilation door; an integrated plate type metal ventilation door is mounted in the inner cavity of the check valve; the ventilation door is fixed in the valve body by a positioning shaft; the ventilation door performs opening and closing motion around the positioning shaft; the magnet is fixed to the inner cavity wall of the check valve and absorbs the ventilation door so that the ventilation door is closed; the base is composed of a square plate and a cylinder and shaped as a hollow sleeve penetrating from front to back; and the reducing nipple is also shaped as a hollow sleeve penetrating from front to back. The flue check valve is capable of effectively preventing smoke backflow, tainting by odor and air inflow, so that smoke discharge is smooth.

Description

Check valve for flue

Technical field

The utility model relates to the exhaustor for kitchen technical field, relates in particular to a kind of check valve for flue.

Background technique

At present, along with the raising of living standards of the people, range hood is extensive use, and people more and more pay attention to domestic environment and indoor air quality.But because the family kitchen common flue that a variety of causes causes falls to distinguish the flavor of, the taint of odour phenomenon is still very general, fail effectively to be solved always, had a strong impact on resident's quality of life.Mounted smoke-backflow-proof device in the new residential building of paying, the complex structure that has is impracticable, and what have is poorly sealed, and effect is relatively poor.The illusory function that has, few of practical use; Deficiency in the design of smoke-backflow-proof device has all directly affected the air quality of household.

Summary of the invention

The purpose of this utility model provides a kind of check valve for flue, and effectively smoke-backflow-proof, anti-taint of odour, the anti-wind of filling with make smoke evacuation smooth and easy.

The purpose of this utility model is achieved through the following technical solutions, a kind of check valve for flue, and described device comprises base, check valve, reducing and magnet, wherein:

One end of described check valve is connected with base, and the other end is connected with reducing; Described check valve is cylindrical, is constituted by valve body and air door;

The check valve inner chamber is equipped with a whole panel metal air door, and this air door is fixed in the valve body by a positioning shaft, and air door is done the opening and closing campaign around positioning shaft, and described magnet is fixed on the check valve internal chamber wall, and the absorption air door becomes closed condition;

Described base is comprised of square plate and cylinder, the hollow shell-like that communicates before and after being; The hollow shell-like that communicates before and after described reducing also is.

There is a positioning spline that is used for determining installation direction the upper end of described base inboard.

The front end of described reducing is connected with the heavy caliber airduct of range hood, and its rear end and check valve are faucet type without an end of keyway and are connected, and in described check valve outer ring the equally distributed draw-in groove of 120 degree are set, and check valve closely is connected with reducing by this draw-in groove.

Described base is connected with check valve by cylinder, also can be connected with check valve by square plate.

Be connected combination between described check valve and the reducing, be connected on by reduction center on the intake grill of check valve, or respectively be plugged with a reducing at the two ends of check valve.

Described air door is fixed on the position of top 3/4 height in the valve body exhaust outlet by positioning shaft.

Can find out that by the technological scheme that above-mentioned the utility model provides described check valve for flue comprises base, check valve, reducing and magnet, an end of wherein said check valve is connected with base, and the other end is connected with reducing; Described check valve is cylindrical, is constituted by valve body and air door; The check valve inner chamber is equipped with a whole panel metal air door, and this air door is fixed in the valve body by a positioning shaft, and air door is done the opening and closing campaign around positioning shaft, and described magnet is fixed on the check valve internal chamber wall, and the absorption air door becomes closed condition; Described base is comprised of square plate and cylinder, the hollow shell-like that communicates before and after being; The hollow shell-like that communicates before and after described reducing also is.This check valve for flue is smoke-backflow-proof, anti-taint of odour, the anti-wind of filling with effectively, makes smoke evacuation smooth and easy.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment's technological scheme, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.

Fig. 1 is a kind of Placement of the present utility model: the schematic representation that square plate connects;

Fig. 2 is another kind of Placement of the present utility model: the schematic representation that the round mouth formula connects;

Fig. 3 is the schematic representation that reducing connects;

Fig. 4 is the side-looking structural representation of check valve;

Fig. 5 is the main TV structure schematic representation of base 1;

Fig. 6 is the side-looking structural representation of base 1;

Fig. 7 is the structural representation of facing of check valve.

Among the figure: 1, base, 2, check valve, 3, reducing, 5, air door, 6, positioning shaft, 7, damper is protruding, 8, keyway, 9, keyway, 10, square plate, 11, cylinder, 12, magnet.

Embodiment

Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on embodiment of the present utility model, those of ordinary skills belong to protection domain of the present utility model not making the every other embodiment who obtains under the creative work prerequisite.

Below in conjunction with accompanying drawing the utility model embodiment is described in further detail, referring to Fig. 1, Fig. 2, Fig. 1 is a kind of Placement of the present utility model: the schematic representation that square plate connects; Fig. 2 is another kind of Placement of the present utility model: the schematic representation that the round mouth formula connects, among Fig. 1, Fig. 2:

Described check valve for flue mainly is comprised of base 1, check valve 2, reducing 3 and magnet 12, and an end of check valve 2 is connected with base 1, and the other end is connected with reducing 3; Check valve 2 is cylindrical, is comprised of valve body and air door 5, and body cavity is equipped with a whole panel metal air door 5,

This air door 5 is fixed on the position of valve body exhaust outlet top 3/4 height by a positioning shaft 6, and air door 5 can be done the opening and closing campaign around positioning shaft 6, and described magnet 12 is fixed on the check valve internal chamber wall, and the absorption air door becomes closed condition.

Referring to Fig. 5, Fig. 6, base 1 is the hollow shell-like that old name for the Arabian countries in the Middle East's ground circle, front and back communicate, and namely is comprised of square plate 10 and cylinder n, and base 1 inner top side has a positioning spline 9 that is used for determining installation direction.Base 1 can positive and negatively be installed and used, that is: base 1 can be connected with check valve 2 by cylinder n, and base 1 also can be connected with check valve 2 by square plate 10.Being connected to the round mouth formula by cylinder 11 and check valve 2 is connected; Being connected to square plate by square plate 10 with check valve 2 is connected.

Referring to Fig. 7, metal air door 5 is arranged on the check valve 2, and metal air door 5 is apart from valve body exhaust outlet top 3/4 At The Height cross-under one positioning shaft 6, and there is air door back-up ring 7 the valve body the inside, simultaneously also be provided with magnet 12 at the check valve internal chamber wall, become closed condition by these magnet 12 absorption air doors.

Referring to Fig. 4, a side of check valve 2 valve bodies is by keyway 8.As shown in Figure 1, having shown the connection of square plate, is square plate 10 and check valve 2 sockets by base 1; As shown in Figure 2, having shown the connection of drum type, is cylinder n and check valve 2 sockets by base 1; Above-mentioned two kinds of connections are further to be to be connected with the smoke exhaust pipe of range hood by intake grill by the side of check valve 2 valve bodies without keyway 8, check valve 2 valve rear ends have a side of keyway 8 and a side that base 1 has keyway 9 to join, it is protruding 7 that the inboard circle of check valve is provided with damper, and whole panel metal air door 5 is fixed in the valve body by an elongated positioning shaft 6.

As shown in Figure 3, the hollow shell-like that communicates before and after reducing 3 is, the heavy caliber airduct of 180 millimeters range hoods of the front end of reducing 3 and diameter is connected, the rear end of reducing 3 and check valve are faucet type without an end of keyway and are connected, and the equally distributed draw-in groove of 120 degree is set in described check valve outer ring, and check valve closely is connected with reducing by this draw-in groove.Be connected combination between check valve 2 and the reducing 3, can be socketed on the intake grill of check valve 2 by reducing 3, namely the rear end of reducing 3 and check valve 2 are faucet type without an end of keyway and are connected; Also can respectively be plugged with at the two ends of check valve 2 reducing, as shown in Figure 4.

In sum, the described check valve for flue of the embodiment of the invention is smoke-backflow-proof, anti-taint of odour, the anti-wind of filling with effectively, makes smoke evacuation smooth and easy.

The above; it only is the better embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.

Claims

1. a check valve for flue is characterized in that, described device comprises base, check valve, reducing and magnet, wherein:

2. check valve for flue according to claim 1 is characterized in that, there is a positioning spline that is used for determining installation direction the upper end of described base inboard.

3. check valve for flue according to claim 1, it is characterized in that, the front end of described reducing is connected with the heavy caliber airduct of range hood, its rear end and check valve are faucet type without an end of keyway and are connected, and the equally distributed draw-in groove of 120 degree is set in described check valve outer ring, and check valve closely is connected with reducing by this draw-in groove.

4. check valve for flue according to claim 1 is characterized in that, described base is connected with check valve by cylinder, also can be connected with check valve by square plate.

5. check valve for flue according to claim 1 is characterized in that, is connected combination between described check valve and the reducing, is connected on by reduction center on the intake grill of check valve, or respectively is plugged with a reducing at the two ends of check valve.

6. check valve for flue according to claim 1 is characterized in that, described air door is fixed on the position of top 3/4 height in the valve body exhaust outlet by positioning shaft.