Title:
DELUGE ALARM VALVE
Document Type and Number:
WIPO Patent Application WO/2020/248089
Kind Code:
A1
Abstract:
Provided is a deluge alarm valve, comprising a valve body (1), a piston (3) and a valve plate (4), wherein the valve body is provided with a control cavity (8), the piston is slidably arranged in the control cavity, the control cavity is in communication with a fire-fighting main pipeline, the fire-fighting main pipeline can input pressure water into the control cavity, the control cavity is further connected to a discharge pipeline, the control cavity can release water through the discharge pipeline, and the piston is connected to the valve plate and can drive the valve plate to rotate. When no water passes, the fire-fighting main pipeline inputs the pressure water into the control cavity, and under the action of the water pressure, the piston abuts against the valve plate connected thereto to make the valve plate block a water inlet (6); and when water passes, the water in the control cavity is discharged through the discharge pipeline, after the water pressure is reduced, the valve plate is rotated upwards by means of hydraulically pushing to push the piston to move upwards, after the water inlet is opened, a water flow flows out through a water flow passage via a water outlet (7) to perform fire-fighting fire extinguishing, and after the operation is completed, pressure water continues to be led into the control cavity through the fire-fighting main pipeline, and the piston moves downwards to drive the valve plate to rotate and to block the water inlet.
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Inventors:
CUI SHUSHENG (CN)
HUANG TAO (CN)
LIU HONGCHANG (CN)
HUANG TAO (CN)
LIU HONGCHANG (CN)
Application Number:
PCT/CN2019/090480
Publication Date:
December 17, 2020
Filing Date:
June 10, 2019
Export Citation:
Assignee:
NINGJIN APC IND CO LTD (CN)
International Classes:
F16K17/22; A62C37/38; F16K31/122
Domestic Patent References:
| WO2018130649A1 | 2018-07-19 |
Foreign References:
| CN207454857U | 2018-06-05 | |||
| CN208252839U | 2018-12-18 | |||
| CN201739577U | 2011-02-09 | |||
| CN201227490Y | 2009-04-29 | |||
| CN206582362U | 2017-10-24 | |||
| CN207246493U | 2018-04-17 | |||
| CN205423928U | 2016-08-03 |
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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