Wind cap
A technology of hoods and air ducts, which is applied to vertical pipes, building components, buildings, etc., can solve the problems of affecting the exhaust effect, complex structure, and increased exhaust resistance, and achieve simple structure, improved exhaust effect, and reduced The effect of resistance
Inactive Publication Date: 2021-06-11
联知(北京)技术服务有限公司
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the hood of the invention has an internal and external air guide tube, and the structure is complex, which increases the exhaust resistance in the exhaust duct of the house, thereby affecting the exhaust effect.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] Such as figure 1 As shown, a hood includes a base 1 , a deflector 2 and a connecting rod 3 . The base 1 can be detachably connected to the top of the exhaust duct 4 , and the base 1 is provided with a vent hole 11 whose shape matches the cross-sectional shape of the exhaust duct 4 and whose axis coincides with the axis of the exhaust duct 4 . The flow gui...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides an air cap. The air cap comprises a base, a flow guide part and a connecting rod; the base can be detachably connected to the top end of an exhaust passage, and a vent hole which is matched with the cross section of the exhaust passage in shape and coincides with the axis of the exhaust passage is formed in the base; the flow guide part and the base are arranged at an interval and detachably connected to the base through a connecting rod, and smoke in the exhaust passage can flow through the vent hole and is exhausted from the position between the flow guide part and the base in the direction away from the axis of the vent hole; and the diameter of the vent hole is D1, in the axis direction of the vent hole, the minimum distance between the flow guide part and the base is H, and H / D1 is larger than or equal to 0.58 and smaller than or equal to 0.963. The air cap has the advantages of being reasonable in design, simple in structure and capable of reducing the smoke flowing resistance and improving the smoke discharging effect.
Description
technical field [0001] The invention relates to the construction field, in particular to a hood. Background technique [0002] In residential construction, the hood is an important part of the toilet and housing exhaust duct system. Chinese patent CN211622432U discloses a wind cap, including an outer air guide tube, a guide body, and an inner air guide tube; wherein the outer air guide tube cover is arranged on the upper side of the air cap connecting pipe, and an upward exhaust passage is formed inside, and the guide body Supported on the outer air guide tube and located in the exhaust channel; the guide body is arranged on the upper side of the smoke outlet at the top of the hood connecting pipe, and the inner air guide tube extends upward along the upper end of the guide body to form a The side wall that rebounds wind or rainwater is generated behind the inner wall of the air duct, and a drainage section that runs through the exhaust up and down is formed between the sid...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): E04F17/02
CPCE04F17/026
Inventor 秦彦钢赵广辉
Owner 联知(北京)技术服务有限公司