Buried automatic quick exhaust valve

An exhaust valve, buried technology, applied in the field of buried automatic quick exhaust valve, can solve the problems of work failure, exhaust valve management and maintenance increase, freezing damage or freezing to death, etc., to prevent rust and failure , management and maintenance are simple and convenient, and the effect of closing quickly

CN101699107BInactive Publication Date: 2011-06-29段建华
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2011-06-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a buried automatic quick exhaust valve, which consists of an upper valve body, a middle valve body, a lower valve body, an intake / exhaust hood, a quick opening / closing device, a sealing cover and a hollow float ball. The valve is characterized in that the valve in use is buried underground; airways are arranged in the middle valve body and the lower valve body; the upper valve body, the intake / exhaust hood, the quick opening / closing device, a valve stem and the sealing cover are integrally connected; the quick opening / closing device adopts a rotary opening / closing mode and thread-free design and closes when the device is pressed up; and air vents of the intake / exhaust hood are positioned at the lower end of the exhaust hood. The valve has the advantages that the valve has simple reasonable structure, management and maintenance convenience, anti-freezing property, theft-proof property and anti-destroying property; the opening / closing device is not easy to rust orfail, quick and reliable in closing; and the intake / exhaust hood ventilated at the lower end can effectively prevent rain, sand, pollution, insect damage and the like.
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Description

technical field

[0001] The invention relates to an exhaust valve, in particular to an underground automatic quick exhaust valve, which is suitable for intake and exhaust of water supply and drainage pipelines. Background technique

[0002] At present, the exhaust valves used for water supply and drainage pipelines are all installed on the ground and exposed to the outside, which are very easy to be stolen and damaged by man-made. In addition, most of the exhaust holes of existing exhaust valves are designed on the upward or side positions, and sand and sundries are easy to fall into the valve body of the exhaust valve, which adds difficulties to the management and maintenance of the exhaust valve; the emergency shut-off gate is The screw-type exhaust valve is easy to rust and lose its due function if it is not used for many years. The above are the defects that exist in the existing exhaust valve. Contents of the invention

[0003] The purpose of the present invention is...

Examples

Embodiment Construction

[0027] Such as figure 1 ——As shown in 7, the local buried automatic quick exhaust valve consists of an upper valve body 5, a middle valve body 14, a lower valve body 17, an intake and exhaust cover 3, a quick opening and closing device 2, a cover 1 and a hollow floating ball 18. It is characterized in that: the lower end of the upper valve body 5, the middle valve body 14 and the two ends of the lower valve body 17 are provided with flanges welded as one, and the upper valve body 5, the middle valve body 14 and the lower valve body 17 are connected to each other through the flanges at the ends; at least two exhaust holes 20 are evenly distributed on the upper end peripheral surface of the upper valve body 5, and the intake and exhaust cover 3 is welded on the upper end of the upper valve body 5 and connected with it. As a whole, the quick opening and closing device 2 is set on the intake and exhaust cover 3, the valve stem 4 is installed on the front end of the quick opening a...