CN201943323U

CN201943323U - Intercepting exhaust duct

Info

Publication number: CN201943323U
Application number: CN2011200326027U
Authority: CN
Inventors: 胡长宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-30
Filing date: 2011-01-30
Publication date: 2011-08-24
Anticipated expiration: 2021-01-30

Abstract

The utility model relates to an intercepting exhaust duct, which effectively solves the problem of poor exhaust effect of the existing straight tube-shaped exhaust duct and has the technical scheme that the intercepting exhaust duct comprises a pipe body and air inlets, wherein the pipe body is formed by connecting a plurality of sections of branch pipe bodies with different cross sections in series up and down, each section of branch pipe body is at least provided with one air inlet, each air inlet is provided with a one-way intercepting control valve, an exhaust partition board with an upwards tilted bottom is arranged in the pipe body at the lower part of the air inlet, each branch pipe body is divided into a main exhaust duct and each branch exhaust duct by the exhaust partition board, the air inlet is directly communicated with each branch air exhaust duct, the cross section of each section of branch pipe body is larger than the cross section of the next section of connected branch pipe body, the vertical cross section at one side of the pipe body is in a reverse step shape, the uppermost part of the pipe body is provided with a ventilation window, and the top of the ventilation window is provided with a protective cover. The intercepting exhaust duct has a simple structure and a good use effect, is novel and unique, is easy to build, effectively solves indoor waste gas exhaust, prevents waste gas backward flow, and has good economic and social benefits.

Description

The shutoff type extract duct

Technical field

The utility model relates to building, particularly a kind of shutoff type extract duct of using of building.

Background technology

The exhaust passage is often to have in the building constructions, highrise building particularly, the exhaust passage must have, especially along with the requirement of people to housing environment, smog to kitchen or washroom generation, waste gas must drain into outdoor, with protection from fumes, waste gas is to the pollution of indoor environment, for solving the kitchen, the washroom exhausting problem, all be to adopt in the at present general building constructions in close kitchen, in the body of wall of washroom the exhaust passage is set, but present exhaust passage all is straight tubulars, because structural problem, exhaust effect is bad, especially when wind, also can produce the phenomenon that smog or waste gas pour in down a chimney, make smog, waste gas can not be discharged outdoor effectively, and because mostly the exhaust passage is shared by many families, therefore produce the phenomenon of collaborating sometimes, influenced the result of use of exhaust passage greatly.

Summary of the invention

At above-mentioned situation, for overcoming the defective of prior art, the purpose of the utility model just provides a kind of shutoff type extract duct, can effectively solve the problem of existing straight barrel type extract duct exhaust effect difference.

The technical scheme that the utility model solves is, comprise body and air inlet port, body is serially connected up and down by the branch body of more piece different cross section and constitutes, every joint divides and has an air inlet port on the body at least, unidirectional shutoff type control valve is housed on each air inlet port, the bottom is housed in the body of air inlet port bottom is the exhaust partition that the inclined-plane makes progress, exhaust partition will be separated into main exhaust passageway and each branch exhaust duct in each branch body, air inlet port divides exhaust duct directly to be connected with each, every joint be in charge of body section divides body greater than a following continuous joint cross section, constitute the vertical cross section of body one side and be the scalariform of falling from power, the topmost of body is equipped with transom, and there is protective cover on the top of transom.

The utility model is simple in structure, and is novel unique, easily builds, and result of use is good, effectively solves the indoor exhaust air discharging and prevents the phenomenon that waste gas pours in down a chimney, and good economic and social benefit is arranged.

Description of drawings

Fig. 1 is a structural profile front view of the present utility model.

Fig. 2 is the structural front view of the valve block of unidirectional shutoff type control valve of the present utility model when closed.

Fig. 3 is the structural front view of the valve block of unidirectional shutoff type control valve of the present utility model when opening.

Fig. 4 is the front view of unidirectional shutoff type control valve of the present utility model.

Fig. 5 is the rear elevation of the unidirectional shutoff type control valve of utility model.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.

Shown in Fig. 1-5, the utility model comprises body and air inlet port, body is serially connected up and down by the branch body 1 of more piece different cross section and constitutes, every joint divides and has an air inlet port 2 on the body at least, unidirectional shutoff type control valve 4 is housed on each air inlet port, the bottom is housed in the body of air inlet port bottom is the exhaust partition 3 that the inclined-plane makes progress, exhaust partition will be separated into main exhaust passageway and each branch exhaust duct in each branch body, air inlet port divides exhaust duct directly to be connected with each, every joint be in charge of body section divides body greater than a following continuous joint cross section, constitute the vertical cross section of body one side and be the scalariform of falling from power, the topmost of body is equipped with transom 5, and there is protective cover 6 on the top of transom.

In order to guarantee result of use, described unidirectional shutoff type control valve 4 is by valve body, valve block, rotating shaft, valve block angle limits body constitutes, rotating shaft 8 is equipped with on the air exit top on valve body 7 tops on valve body, the valve block 9 of rotation is housed in the rotating shaft, and valve block 9 is greater than air exit, and valve block angle limits body 10 is equipped with on rotating shaft top on valve body, there are mounting flange 11 and hollow connector 12 in valve body limit portion, and there is exhaust entrance 13 at the valve body center; Described transom 5 is to be made of the expanded metal lath on stake body and the vertical periphery of stake body.

The utility model in use, can according to the number of plies of building what, take the segmentation assembly, its tubing can be that plastics or concrete or brick are made, and according to the different use of extract duct, when being used for kitchen exhaust, can adopt per 3 layers of branch body together of pretending below 6 layers, per 5 layers of branch body together of pretending more than 7 layers; When being used for the washroom exhaust, can adopt the per 6 layers of branch body together of pretending of 1-12 layer, look the branch body that different situations can be adorned different length respectively more than 12 layers.

Mode of occupation of the present utility model is, during use, the utility model is when building constructions, place the appropriate location of the body of wall of kitchen or washroom, the hollow connector of valve body is towards indoor, and with exhaust plant (as exhaust fan, smoke exhaust ventilator) is connected, when the needs exhaust, after the exhaust plant work, valve block 9 is upwards blown open, through minute exhaust duct and main exhaust passageway, when smog or waste gas do not need exhaust by the main exhaust passageway discharge, after exhaust plant quits work, valve block is under the effect of gravity, be rotated down around the shaft, cover on the air exit of valve body, the backflow that has effectively prevented gas with pour in down a chimney.

In a word, clearly illustrate that by above-mentioned situation, the utility model is safeguarded, simple installation, particularly adopts structurally progressively to be become greatly to high-rise pipeline by bottom, neither influences result of use, increased the usable floor area in low layer room again, reduced construction cost, result of use is very good, has prevented that effectively the phenomenon of gas refluence and smoke blowing, taint of odour from taking place, sanitation and hygiene are the innovations to existing extract duct.

Claims

1. shutoff type extract duct, comprise body and air inlet port, it is characterized in that, body is by the branch body (1) of the more piece different cross section formation that is serially connected up and down, every joint divides and has an air inlet port (2) on the body at least, unidirectional shutoff type control valve (4) is housed on each air inlet port, the bottom is housed in the body of air inlet port bottom is the exhaust partition (3) that the inclined-plane makes progress, exhaust partition will be separated into main exhaust passageway and each branch exhaust duct in each branch body, air inlet port divides exhaust duct directly to be connected with each, every joint be in charge of body section divides body greater than a following continuous joint cross section, constitute the vertical cross section of body one side and be the scalariform of falling from power, the topmost of body is equipped with transom (5), and there is protective cover (6) on the top of transom.

2. shutoff type extract duct according to claim 1, it is characterized in that, described unidirectional shutoff type control valve (4) is by valve body, valve block, rotating shaft, valve block angle limits body constitutes, rotating shaft (8) is equipped with on the air exit top on valve body (7) top on valve body, the valve block (9) of rotation is housed in the rotating shaft, valve block (9) is greater than air exit, valve block angle limits body (10) is equipped with on rotating shaft top on valve body, there are mounting flange (11) and hollow connector (12) in valve body limit portion, and there is exhaust entrance (13) at the valve body center.

3. shutoff type extract duct according to claim 1 is characterized in that, described transom (5) is to be made of the expanded metal lath on stake body and the vertical periphery of stake body.