CN2042550U

CN2042550U - Automatic valve for draining water and exhaust

Info

Publication number: CN2042550U
Application number: CN 88214104
Authority: CN
Inventors: 周韶华
Original assignee: Zhou Fenglou
Current assignee: Zhou Fenglou
Priority date: 1988-09-20
Filing date: 1988-09-20
Publication date: 1989-08-09

Abstract

The utility model provides an automatic discharging and exhaust dual-purpose trap with an automatic water discharging function and an automatic air exhausting function. The utility model has two installing and using forms of a horizontal type and a vertical type. The performance is stable without the air blocking phenomenon. The utility model has the advantages of good tightness and high reliability.

Description

Automatic valve for draining water and exhaust

The utility model be a kind of not only can be used as hydrophobic automatically, but also can be used as self-bleeding dual purpose valve.

Existing drain valve and outlet valve in use have the deflation phenomenon when hydrophobic, the phenomenon of metalling run out is arranged during exhaust, and the two can not exchange use.

The purpose of this utility model is the function that integrates drain valve and outlet valve, provide a kind of make simple, easy-to-use, volume is little, the dual purpose valve of reliable operation.

The purpose of this utility model is finished as follows: waterborne being raised to a certain degree because of in the drain valve requirement valve can make spool unlatching, discharge water.And outlet valve requires the gas in the valve to be increased to (water reduces in other words) to a certain degree, can make spool open, discharge gas.This explanation: outlet will place the most down when 1. making drain valve, and when making outlet valve, outlet will place and go up most.2. two valves all close with water.According to these 2 the function of two valves is integrated in one: 1. this valve adopts floating ball lever structure, and Rotate 180 ° when installing and using only, just can change to another function from a function.2. select ball float heavily to equal heavy half of institute draining, when at this moment no matter making drain valve or when making outlet valve, sealing valve port pressurized equalization, can also form a water seal or air seal structure respectively simultaneously.So under reducing the size of valve, increasing the situation of valve port flow area, make problem also obtain good solution.

Accompanying drawing is the longitudinal sectional drawing of a kind of concrete structure of this dual purpose valve.

Details below in conjunction with this device of description of drawings: this valve is mainly by housing and access interface, and four parts such as valve seat and spool, ball float and lever, manual examination (check) door are formed, and inlet and outlet connectors is shown in the figure arrow.Valve casing (1) is the garden cartridge type, and its two ends seal with inlet end cap (3), outlet end cap (2).At two end cap upper offset inlet and outlet connectors, and make import and outlet be diagonal position (if on housing, drive outgoing interface into, will to be relative position, as a special-shaped four-way.) promptly one on the housing axis, one under the housing axis.Valve seat (4) is contained in outgoing interface, and ball float is on the housing center line.

At a fluting of valve seat, to place lever (9).The other end car becomes screw thread, links with the outgoing interface internal thread, and the valve port hole on the valve seat and axle Xiao hole are according to the biasing of valve seat center line symmetry.In when assembling the valve port hole is placed upper/lower positions, be provided with seal ring (5) so that tight-closed at valve port.Spool (8) sealing surface is the hemisphere type structure, and the other end is connected with lever (9) with screw thread, and the other end of lever is connected with ball float (11).All increased nut (7) and (9) for ease of adjusting and locking, the fulcrum of lever is connected with valve seat by axle Xiao (6).Manual examination (check) door (12) is contained on the outlet end cap and setovers with the valve seat symmetry.

Valve casing is used the malleable iron end cap cylinder iron, and ball float is suppressed with cast aluminium or sheet copper, spool brass, and the sealing valve port circle is selected oil resistant rubber or polytetrafluoroethylene or brass for use according to temperature, and all the other each parts are all used A ₃Be processed into, ironware all needs zinc-plated processing.

Working condition below in conjunction with this valve of description of drawings: when making drain valve, according to aforementioned, because the below that outlet places valve at this moment valve is in closed condition, when vapour is entered in the valve by inlet end cap (3), if there is water to form, water level rises, and water is raised to above ball float (11) one halfs, spool (8) will leave seal ring (5), and valve is in opening state.Water is discharged by valve seat (12), is lower than ball float one half when water drops to, and valve enters next circulation from newly cutting out.

When making outlet valve, according to aforementioned (be with respect to drain valve install and use the position) along its axis Rotate 180 °, because outlet places the top of valve, at this moment valve is in opening state, when water is entered in the valve by import (3), gas original or that newly bring into will be discharged by valve seat (4), water level rises, and water is raised to above ball float one half, and spool is by last seal ring (5), valve is in closed condition, if have gas to enter again, drawdown then, water drops to and is lower than ball float one half, valve enters next circulation from new unlatching.

Make horizontal usefulness, refer to that the housing axis is horizontal.Position as shown in drawings.

Make vertical usefulness and refer to that the housing axis is in vertical position, at this moment as long as valve seat (4) and lever (9) are respectively prolonged its oneself axis to be turned to, re-assemblying can be vertical by horizontal change, and its action principle is with horizontal.

Claims

1, a kind of automatic hydrophobic exhaust dual purpose valve of forming by valve casing [1], inlet end cap [3], outlet end cap [2], valve seat [4], seal ring [5], spool [8], ball float [11], lever [9], axle Xiao [6] nut [7] and [10] etc.It is characterized in that ball float [11], spool [8], be fixed on two of lever [9] through nut [7] and [10], and be connected in together on the valve seat [4] through axle Xiao [6], valve seat is offset to the structure of outlet end cap.

2, according to the described dual purpose valve of claim 1, it is characterized in that: valve seat (4) is one one and has the lever guiding groove, and valve port hole and axle Xiao hole be according to the biasing of valve seat center line symmetry, the structure that the other end car has screw thread and is connected with the outlet end cap internal thread.

3, according to the described dual purpose valve of claim 1, it is characterized in that: ball float (11) heavily equal heavy half of own vol institute discharge opeing, and the longitudinal section is that ellipse garden or two are the structure of hemisphere.

4, according to the described dual purpose valve of claim 1, it is characterized in that; The sealing surface of spool (8) is the structure of hemisphere type.

5, according to claim 1,2,3 described dual purpose valves, it is characterized in that sealing configuration by formed water seal of valve seat (4) ball float (11) or sealing gland.

6, according to the described dual purpose valve of claim 1, it is characterized in that being re-assemblied by need only turning to of being formed of valve seat (4), lever (9) just can be by the vertical structure of horizontal change.

7,, it is characterized in that inlet end cap (3), outlet end cap (2) and the valve casing (1) of housing all used screwed connection according to the described dual purpose valve of claim 1.