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Smoke tube base and smoke exhaust ventilator

A range hood and base technology, which is applied in the field of smoke pipe bases and range hoods, can solve the problems of limited service life of check valves, affecting smoke exhaust, and inability to open smoothly.

Active Publication Date: 2020-05-12
BSH ELECTRICAL APPLIANCES JIANGSU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the valve plate is in direct contact with oil fume for a long time, it is easy to adhere to grease and cannot be opened smoothly, which affects the normal smoke exhaust
Furthermore, after the valve plate is attached with grease, it is easy to cause the valve plate to be unable to fully reset when the fan of the range hood stops running, so that the airflow duct at the base of the smoke pipe cannot be completely closed, resulting in the backflow of oil fume in the public flue
Therefore, the service life of the existing check valve is very limited, and it must be cleaned or replaced in time after being used for a certain period of time.
In addition, the valve plate of the existing check valve is often opened by itself due to the wind pressure generated in the public flue, causing the oil fume in the public flue to flow backward.

Method used

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  • Smoke tube base and smoke exhaust ventilator
  • Smoke tube base and smoke exhaust ventilator
  • Smoke tube base and smoke exhaust ventilator

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Embodiment Construction

[0026] In order to make the purpose, scheme and beneficial effect of the application clearer, the application will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0027] An embodiment of a smoke pipe base 19 proposed by the present application, such as Figures 1 to 4 As shown, it includes an airflow duct and an iris diaphragm module arranged in the airflow duct. The cross-section of the airflow duct is circular. One end of the airflow duct is the airflow outlet 1, and the other end is the airflow inlet. The air outlet 1 is circular, such as figure 1 with 2 shown. The edge of the air inlet is the fixed edge 2 for installation.

[0028] The iris aperture module is configured to be suitable for controlling the opening and closing and opening degree of the airflow duct. The embodiment of the smoke pipe base 19 uses an iris aperture module to control the opening and closing of the airflow duct, which helps to avoid backfl...

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PUM

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Abstract

The invention provides an improved smoke tube base and a smoke exhaust ventilator. According to one embodiment of the invention, the smoke tube base (19) comprises an airflow pipeline and further comprises an iris diaphragm module arranged in the airflow pipeline, and the iris diaphragm module is arranged to be suitable for controlling opening and closing and / or the opening degree of the airflow pipeline. The brand-new smoke tube base is provided.

Description

【Technical field】 [0001] The present application relates to the field of smoke pipe bases, in particular to the field of range hoods. 【Background technique】 [0002] At present, the smoke pipe bases on the market are generally provided with a check valve composed of two semicircular valve plates. When the fan of the range hood is running, the airflow generated by the fan blows the valve plate open, the airflow channel at the base of the smoke pipe is unblocked, and the oil fume is discharged with the airflow. When the fan of the range hood stops running, the valve plate will reset due to its own gravity, the two semicircular valve plates will close, and the air flow pipe at the base of the smoke pipe will be closed to prevent the oil fume from the public flue from flowing backward into the kitchen Inside. However, because the valve plate is in direct contact with oil fume for a long time, it is easy to adhere to grease and cannot be opened smoothly, which affects the norma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20
CPCF24C15/20
Inventor 陈宇轩谢玉杰黄卫红喻晓娟
Owner BSH ELECTRICAL APPLIANCES JIANGSU