CN201228784Y

CN201228784Y - Single spider handle mechanical programmed control pressure gauge valve

Info

Publication number: CN201228784Y
Application number: CNU2008201052408U
Authority: CN
Inventors: 裘苗全
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-13
Filing date: 2008-04-13
Publication date: 2009-04-29
Anticipated expiration: 2018-04-13

Abstract

The utility model relates to a single-hand-wheel mechanical program-controlled pressure gauge valve, which is an instrument valve widely applied to petroleum industry, chemical industry, pharmaceutical industry, shipbuilding industry and the like, in particular to a novel pressure gauge valve for gas discharging and charging of pressure gauges. The novel pressure gauge valve is structurally characterized in that an upper sleeve 4, a middle sleeve 9 and a lower sleeve 8 which are disposed in a three-way valve 10 separate the inner chamber of the three-way valve 10 into a gas discharge chamber A, a charging chamber B and a gas inlet chamber C, while an exhaust valve 3, a valve ejector pin 5, a gas inlet valve and the like are respectively mounted in the gas discharge chamber A, the charging chamber B and the gas inlet chamber C, the stroke of an operating lever 2 is larger than that of the valve ejector pin 5, and the stroke of the valve ejector pin 5 is larger than that of the gas inlet valve 6. The operation sequence of gas charging and discharging of a pressure gauge, which needs two hand wheels generally, can be finished by operating a hand wheel 1, thereby achieving the aim of avoiding operation errors, guaranteeing the safety of operators and equipment gauges, and facilitating close concentrated observation and control of the pressure gauge installed on an instrument board and a console.

Description

The mechanical programmed pressure table valve of singlehanded wheel

One, technical field

The utility model relates to a kind of to the pressure meter valve that pressure gauge fills, exhaust is dual-purpose, the mechanical programmed pressure table valve of specifically a kind of singlehanded wheel.

Two, background technique

According to my observation to domestic normally used pressure meter valve, find it all is in a valve body, to have assembled two stop valves, handle in a certain order to finish with two handwheels respectively and fill degassing function.As the careless slightly order of getting wrong when handling, will cause gas to leak in a large number, influence workman's physical and mental health even cause huge calamity.Moreover two handwheels of this kind pressure meter valve can only bidimensional be vertically installed each other, therefore on the panel of the instrument operating console of equipment very inconvenience are installed, and have influenced and control nearby and observe manometric.

Three, summary of the invention

The purpose of this utility model is: the operate miss possibility that exists for fear of the pressure meter valve of above-mentioned two handwheels and be convenient to installation on instrument operating console panel provides a kind of that only handle with single handwheel, strict finishing by correct order to fill degassing function and be convenient to be installed in a kind of singlehanded on the instrument operating console panel again and take turns mechanical programmed pressure table valve.

The technological scheme of the mechanical programmed pressure table valve of the singlehanded wheel of the utility model is: it comprises by handwheel (1), operating handle (2), exhaust valve (3), upper bush (4), movable push rod (5), air inlet valve (6), spring (7), lower sleeve (8), middle sleeve (9), three way valve (10) is formed, it is characterized in that: place the upper bush (4) in the three way valve (10), middle sleeve (9), lower sleeve (8) is separated into exhaust cavity (A) to three way valve (10) inner chamber, inflatable chamber (B) and air-inlet cavity (C).Exhaust valve (3) is housed in (A) chamber, movable push rod (5) (B) is housed in the chamber, air inlet valve (6) (C) is housed in the chamber.The reducing endoporus two ends of upper bush (4) are equipped with exhaust valve (3) and movable push rod (5) respectively, and upper bush (4) top puts in the bottom of hollow operating handle (2); Movable push rod (5) profile is a cross, and there is the inverted T-shaped through hole inside, and the upper end is shaped on edge of a knife shape valve seat, and the interior formation of air inlet valve (6) valve seat orifice that middle sleeve (9) is inserted in the lower end is not more than 0.5 millimeter slit; The stroke of operating handle (2) is greater than the stroke of movable push rod (5), and the stroke of movable push rod (5) is again greater than the stroke of air inlet valve (6).

The advantage of the mechanical programmed pressure table valve of the singlehanded wheel of the utility model is: simple in structure, easy to operate, realized finishing that two of original usefulness are HWOly filled, exhaust is difunctional with single handwheel, thereby avoided misoperation, and be convenient to again be installed on the instrument operating console panel, operator controlled and to observe instrument very convenient nearby.

Four, description of drawings

Fig. 1 is the structural representation of the mechanical programmed pressure table valve of the singlehanded wheel of the utility model.

Among the figure: 1, handwheel; 2 operating handles; 3, exhaust valve; 4, upper bush; 5, movable push rod; 6, air inlet valve; 7, spring; 8, lower sleeve; 9, middle sleeve; 10, three way valve is formed.

Five, embodiment

Be described further below in conjunction with the specific implementation process of accompanying drawing the mechanical programmed pressure table valve of the singlehanded wheel of the utility model:

(1) assembly process: according to the drawing size requirement and the requirements such as form and position tolerance and material of the mechanical programmed pressure table valve of the singlehanded wheel of the utility model, process handwheel 1, operating handle 2, exhaust valve 3, upper bush 4, movable push rod 5, air inlet valve 6, spring 7, lower sleeve 8, middle sleeve 9, three way valve 10 is also got various seal rings ready in advance.Then lower sleeve 8 is put into three way valve 10 intracavity bottoms, the endoporus that spring 7 is put into air inlet valve 6 is put air inlet valve 6 into the endoporus of lower sleeve 8 then; The good seal ring of the bottom embedding of middle sleeve 9 and sealing gasket are put into three way valve 10 inner chambers again to be placed on lower sleeve 8 and the air inlet valve 6; The top of valve gap (not annotating numbering) is installed an end that makes operating handle 2 be milled with Fang Xin and rib-loop behind the seal ring in valve gap (and seal ring), pass and load onto handwheel 1.Get upper bush 4, its inner groovy is put into O type circle, then movable push rod 5 is shaped on the bottom insertion of an end of edge of a knife shape valve seat from upper bush 4, put the exhaust valve 3 that a bottom is embedded with sealing gasket above, again upper bush 4 less ends are put in the cavity of operating handle 2 bottoms, at last this assembly is put in the inner chamber of three way valve 10, and tighten valve gap and make the bottom surface of upper bush 4 and the last plane of middle sleeve 9, the last plane of the bottom surface of middle sleeve 9 and lower sleeve 8 closely contacts, place the upper bush 4 in the three way valve 10, middle sleeve 9, lower sleeve 8 is separated into exhaust cavity A to three way valve 10 inner chambers, inflatable chamber B and air-inlet cavity C.Exhaust valve 3 is housed in the A chamber, movable push rod 5 is housed in the B chamber, air inlet valve 6 is housed in the C chamber.The reducing endoporus two ends of upper bush 4 are equipped with exhaust valve 3 and movable push rod 5 respectively, and upper bush 4 tops put in the bottom of hollow operating handle 2; Movable push rod 5 profiles are cross, and there is the inverted T-shaped through hole inside, and the upper end is shaped on edge of a knife shape valve seat, and the interior formation of air inlet valve 6 valve seat orifice that middle sleeve 9 is inserted in the lower end is not more than 0.5 millimeter slit (its objective is to reach damping function, reduce the fluctuation of suction pressure); The stroke of operating handle 2 is greater than the stroke of movable push rod 5, and the stroke of movable push rod 5 is again greater than the stroke of air inlet valve 6.Like this, the singlehanded wheel of the utility model mechanical programmed pressure table valve is with regard to installation.

(2) using process: when being rotated counterclockwise handwheel 1, operating handle 2 descends, operating handle 2 promotes the exhaust port that exhaust valve 3 is closed movable push rod 5 earlier, and air inlet valve 6 is opened in 5 declines of promotion activity push rod then, thereby gas enters pressure gauge indication working pressure under leak free condition.Otherwise, when clockwise direction rotation hand wheel 1, operating handle 2 rises, this moment resets by spring 7 and the pressure of air inlet is closed air inlet valve 6, operating handle 2 continues to rise then, air pressure in inflatable chamber B and the pressure gauge pipeline backs down exhaust valve 3, thus under the condition of cutting off the inlet source of the gas gas in the discharge gauge, make it not be in the precision that influences it under the working state for a long time.

Claims

1. the mechanical programmed pressure table valve of singlehanded wheel, it comprises by handwheel (1), operating handle (2), exhaust valve (3), upper bush (4), movable push rod (5), air inlet valve (6), spring (7), lower sleeve (8), middle sleeve (9), three way valve (10) is formed, and it is characterized in that: place the upper bush (4) in the three way valve (10), middle sleeve (9), lower sleeve (8) is divided into exhaust cavity (A) to three way valve (10) inner chamber, inflatable chamber (B) and air-inlet cavity (C); Exhaust valve (3) is housed in (A) chamber, movable push rod (5) (B) is housed in the chamber, air inlet valve (6) (C) is housed in the chamber.

2. the mechanical programmed pressure table valve of singlehanded wheel as claimed in claim 1 is characterized in that the reducing endoporus two ends of described upper bush (4) are equipped with exhaust valve (3) and movable push rod (5) respectively, and upper bush (4) top puts in the bottom of hollow operating handle (2).

3. the mechanical programmed pressure table valve of singlehanded wheel as claimed in claim 1, it is characterized in that described movable push rod (5) profile is a cross, there is the inverted T-shaped through hole inside, the upper end is shaped on edge of a knife shape valve seat, and the interior formation of air inlet valve (6) valve seat orifice that middle sleeve (9) is inserted in the lower end is not more than 0.5 millimeter slit.

4. the mechanical programmed pressure table valve of singlehanded wheel as claimed in claim 1 is characterized in that the stroke of the stroke of described operating handle (2) greater than movable push rod (5), and the stroke of movable push rod (5) is again greater than the stroke of air inlet valve (6).