CN201377615Y

CN201377615Y - Gas charging valve

Info

Publication number: CN201377615Y
Application number: CN200920145030U
Authority: CN
Inventors: 郭丰时; 刘桂友; 郭雨时
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-05
Filing date: 2009-03-05
Publication date: 2010-01-06
Anticipated expiration: 2019-03-05

Abstract

The utility model discloses a gas charging valve which realizes on-off through using an inflating gas bag. Compressed air is controlled to enter a seal cavity (11) through an inflation discharge pipe (3) or to discharge from the seal cavity (11), which enables a corrugated gas bag (2) on the lateral to upward bulge or downward shrink along a valve body (1) under the effect of the compressed air, and reaches the function of closing or opening a valve port (5). The gas charging valve has excellent corrosion resistant performance, high reliability and low manufacture cost, and is suitable to be used in aquiculture and agriculture water supply and sewerage systems needing automatic control. Complicated mechanical devices such as a motor, a speed reducer, a cylinder piston and the like which are used in an existing control valve structure are avoided, thereby reducing the cost.

Description

A kind of charging valve

Technical field

The utility model relates to the control valve in the low pressure water supply and sewerage pipeline, specifically a kind ofly is applicable to aquaculture, and field irrigation utilizes air bag to realize the valve of switch.

Background technique

Water is the lifeblood of agricultural, can't realize just can't realizing the modernization of agricultural to the automatic control of plumbing, because design is high-voltage operation, so, electric valve generally adopts motor, speed reducer or electromagnetic structure in known water control valve door, pneumatic valve mostly adopts steam-cylinder piston, above-mentioned valve relies on the complicated mechanical device drives to come the opening and closing valve, to realize the adjusting of fluid flow or pressure, the complex structure of valve, the operation part is many, the cost height, the rate of fault height, the operating cost height.Can't in development modernization agricultural, culture fishery, large size promote the use of.Restricting the development of modernization agricultural, culture fishery, this bottleneck effect also affects the promotion and application of other science and technology in modernization agricultural, culture fishery.

Summary of the invention

In order to overcome the complex structure of existing valve, the operation part is many, cost height, rate of fault height, the deficiency that operating cost is high.The present invention provides a kind of simple in structure, the low pressure plumbing charging valve of low cost, it comprises valve body, (air bag is the cylinder type at the no end to air bag in the valve body, the side is a corrugated, the top is the bow type), fill venting gas appliance (charge and exhaust pipe is located on the blind plate of valve body bottom), blind plate clamps air bag bottom and the integrated seal ring of air bag by screw and flange, both fixed air bag, valve body and air bag have also been sealed, make blind plate and air bag form the envelope chamber, make pressurized air enter Seal cage with automatic control by charge and exhaust pipe, to be undulatory air bag at compressed-air actuated effect lower edge valve body upwards expand in the side promotes bow type air bag top and valve port closure, valve port is closed, and liquid is blocked.Pressurized air in charge and exhaust pipe discharging Seal cage, air bag shrinks, and valve port is opened, flow of fluid.Filled up the blank of required this type of valve in aquaculture, the agriculture supply and drain water system.

Description of drawings:

Figure is the structural representation of the utility model Pneumatic valve.

Among the figure: 1, valve body, 2, air bag, 3, charge and exhaust pipe, 4, seal ring, 5, valve port, 6, liquid entering hole, 7, liquid outlet, 8, flange, 9, blind plate, 10, screw, 11, Seal cage, 12, bow type air bag top.

Embodiment

It comprises valve body (1), air bag (2), charge and exhaust pipe (3) and seal ring (4), this charge and exhaust pipe is located on valve body (1) the bottom blind plate (9), blind plate (9) clamps air bag (2) bottom and the integrated seal ring of air bag (2) (4) by screw (10) and flange (8), both fixed air bag (2) and also sealed valve body (1) and air bag (2), blind plate (9) has formed Seal cage (11) with air bag (2).

When making pressurized air pass through charge and exhaust pipe (3), automatic control system enters Seal cage (11), to be undulatory air bag (2) upwards expand bow type air bag top (12) upwards and valve port (5) closure at compressed-air actuated effect lower edge valve body (1) in the side, valve port (5) is closed, and liquid is blocked.Pressurized air in automatic control system makes charge and exhaust pipe (3) discharging Seal cage (11), the side is that undulatory air bag (2) shrinks, separate with valve port (5) downwards on bow type air bag top (12), and valve port (5) is opened, and liquid flows into valve body (1) from liquid entering hole (6) and flows out from liquid outlet (7).Realize the unlatching of valve or close that the exhaust of filling of charge and exhaust pipe (3) is finished by automatic control system.Said structure mainly solves and avoids, and as a large amount of complicated mechanical equipment such as motor, speed reducer, steam-cylinder piston that adopt in the existing control valve structure, has reduced cost, has increased reliability.This pneumatic valve except that the material of air bag (2) be make by expandable rubber of inflation or plastic cement, other devices of valve are made by plastics.Good corrosion resistance in the working environment of acid, alkali, salt, the reliability height, low cost of manufacture is applicable to aspects such as aquaculture, uses in the super-low voltage supply and drain water system that needs to control automatically.

Claims

1, a kind of charging valve, it comprises valve body (1), air bag (2), liquid entering hole (6), liquid outlet (7), charge and exhaust pipe (3) and seal ring (4); It is characterized in that: charge and exhaust pipe (3) is located on valve body (1) the bottom blind plate (9), blind plate (9) clamps air bag (2) bottom and the integrated seal ring of air bag (2) (4) by screw (10) and flange (8), and valve port (5) is in top, bow type air bag top (12).

2, according to the said charging valve of claim 1, it is characterized in that: air bag (2) is the cylinder type at the no end, and the side is a corrugated, and the top is bow type air bag top (12).

3, according to the said charging valve of claim 1, it is characterized in that: the material of air bag (2) is to be made by expandable rubber of inflation or plastic cement.

4, according to the said charging valve of claim 1, it is characterized in that: the material of valve body (1) is to be made of plastics.

5, according to the said charging valve of claim 1, it is characterized in that: the exhaust of filling of charge and exhaust pipe (3) is finished by automatic control system.