CN2898476Y

CN2898476Y - Multifunctional hydraulic control valve

Info

Publication number: CN2898476Y
Application number: CN 200620071918
Authority: CN
Inventors: 吴事德
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-05-26
Filing date: 2006-05-26
Publication date: 2007-05-09
Anticipated expiration: 2016-05-26

Abstract

The utility model discloses a multi-functional hydraulic control valve mainly is on double-chamber formula or three-chamber formula hydraulic control valve's basis, adds the indicating device who constitutes including guide holder, indicator pole and adapter, reciprocates along with the valve rod through the indicator pole of installing on the valve rod top and directly shows the operating condition of valve, and this indicator pole can also use with supporting such as travel switch or hall element, the accurate regulation and the signal feedback of the system of being convenient for. The lower hole of the guide seat can be used as a support hole at the upper part of the valve rod, and the lower support structure connected with the sealing disc at the bottom of the valve rod enables the valve to move along the two-point and one-line track formed by the lower support at the bottom and the guide seat at the upper part all the time in the opening and closing process of the valve.

Description

The multifunctional water force control valve

Technical field

The utility model relates to a kind of hydraulic control valve, and the multifunctional water force control valve that can indicate opening degree simultaneously that use in fluid control fields such as particularly a kind of suitable municipal administration, building, agricultural irrigation, control of desert belongs to valve field.

Background technique

Existing hydraulic control valve mainly is made up of valve body, sealing dish, plug, barrier film, barrier film dish, valve rod, spring and valve gap, cavity between barrier film and valve gap is a control chamber, cavity between barrier film and sealing dish is a main valve chamber, often be called the hydraulic control valve of dual-chamber structure or single chamber control type structure, have advantage simple in structure and convenient for production.Realize the adjusting and the control of valve by the pressure medium source in the main line, but when the pressure medium of main line is low to moderate one when regularly being not suitable as pilot pressure, its thrust that makes progress can't overcome the self gravitation that seals assemblies such as dish, then valve open can't be able to not be realized the action of valve.So this type of valve hour is not easy to realize the action and the adjusting of valve at main line pressure or flow.In order to address this problem, can between barrier film and sealing dish, set up separator, make it to become three cavitys in upper, middle and lower, with lumen the main valve chamber and the last control chamber safety of valve are separated, can cross when hanging down at line pressure and adopt external power normally to control.But the valve rod of above-mentioned existing hydraulic control valve is the single-point supporting structure that its bottom links to each other with the sealing dish, valve is in opening-closing process repeatedly, if there is big pressure surge to cause that easily valve rod moves dumb even " stuck " phenomenon, has influenced the stability and the reliability of system; Owing to can not in time indicate valve current working state and position, be difficult to the supporting use of control system of having relatively high expectations again with automation.

Summary of the invention

The purpose of this utility model is in order to overcome the deficiency of above-mentioned existing hydraulic control valve, to have designed a kind of safety and stability, unfailing performance height, be fit to and the matching used multifunctional water force control valve of the demanding control system of automation.

Multifunctional water force control valve of the present utility model mainly is to comprise valve body, the sealing dish, plug, barrier film, the barrier film dish, valve rod, on the basis of the bicavate control valve that spring and valve gap are formed, or on the basis of the three-chamber control panel that has additional separator, on valve gap, have additional indicating device, described indicating device comprises guide holder, indicator bar and ABAP Adapter, wherein, guide holder is installed on the valve gap, borehole jack is contained in the valve rod upper end under the guide holder, indicator bar lower end and valve rod upper end flexibly connects, and ABAP Adapter is enclosed within on the indicator bar and is installed on the guide holder on the hole through outside thread.Owing on valve gap, have additional and comprise guide holder, the indicating device that indicator bar and ABAP Adapter are formed, valve rod top can be slided up and down in the following hole of guide holder, add the lower support structure that stem bottom links to each other with the sealing dish, make valve in the process that opens and closes, valve rod is promptly gone up along the lower support of bottom and the guide holder on top all the time, the track of " two one lines " of following guide-localization moves, principle according to trigonometric function, 2 structures that support is supported with respect to single-point, under the identical situation of its radial missing, the misalignment angle of valve rod can be littler, help being free to slide of valve rod, can effectively avoid the screens phenomenon that causes because of pressure medium fluctuation, has the action sensitivity height, advantage such as safety and stability and good reliability, simultaneously, again because of be provided with an indicator bar in valve stem tip, move up and down with valve rod, the working state that can directly show valve, can also with the supporting use of sensors such as position limit switch or Hall element, be convenient to the accurate adjusting and the signal feed back of system.

Description of drawings

Accompanying drawing 1 is a kind of structural representation of the bicavate multifunctional water force control valve in the utility model; Among the figure 1 is valve body, the 2nd, and sealing dish, the 3rd, cavity of resorption plug, the 4th, barrier film, the 5th, barrier film dish, the 6th, valve rod, the 7th, spring, the 8th, valve gap, the 9th, epicoele plug, the 10th, guide holder, the 11st, indicator bar, the 12nd, ABAP Adapter.

Accompanying drawing 2 is a kind of structural representations of the three-chamber multifunctional water force controller in the utility model.Among the figure 13 is isolating plates, the 14th, the lumen plug, and other label is identical with Fig. 1.

Embodiment

Referring to accompanying drawing 1, this bicavate multifunctional water force control valve comprises on the basis of the bicavate control valve that valve body 1, sealing dish 2, plug 3 and 9, barrier film 4, barrier film dish 5, valve rod 6, spring 7 and valve gap 8 are formed, set up indicating device, this indicating device comprises guide holder 10, indicator bar 11 and ABAP Adapter 12, wherein, guide holder 10 is installed on the valve gap 8, the following borehole jack of guide holder 10 is contained on the upper end of valve rod 6, indicator bar 11 lower ends and valve rod 6 upper ends flexibly connect, and ABAP Adapter 12 is sleeved on the indicator bar 11 and is installed in through outside thread on the last hole of guide holder 10.

Accompanying drawing 2 is three-chamber multifunctional water force control valves, its structure comprises valve body 1, sealing dish 2, plug 3 and 9 and 14, barrier film 4, barrier film dish 5, valve rod 6, spring 7, on the basis of the three-chamber control valve that valve gap 8 and separator 13 are formed, set up indicating device, this indicating device comprises guide holder 10, indicator bar 11 and ABAP Adapter 12, wherein, guide holder 10 is installed on the valve gap 8, the following borehole jack of guide holder 10 is contained on the upper end of valve rod 6, indicator bar 11 lower ends and valve rod 6 upper ends flexibly connect, and ABAP Adapter 12 is sleeved on the indicator bar 11 and is installed in through outside thread on the last hole of guide holder 10.

During use, use plug 3 instead control valve respectively through plug 9 and/or 14 and be connected with the upper and lower control chamber of valve and can realize various system control mode.

During work, utilize the mode of control chamber (being positioned at barrier film top) in the importing of control hydraulic pressure (deriving from pipeline) to realize closing of valve, though be to utilize the pressure identical to order about sealing dish 2 with pipeline, but because of the area of barrier film 4 area (about 2.8: 1) much larger than sealing dish 2, according to mechanics formula F=P * S, so the power that acts on barrier film 4 is also much larger than the power that acts on sealing dish 2, thereby force valve closing.When discharging the pressure of going up in the control chamber, line pressure forces sealing dish 2 to be opened, and opens valve.The switching that can come control valve by external pressure source of two control chambers when last control chamber connects power system, with control chamber under the emptying, is given last control chamber supercharging, and barrier film is depressed, and causes the sealing dish to close current; Otherwise when following control chamber connect power system, current forced the sealing disc device to enter opening state.

In the process of valve rod ascending, descending, the indicator bar ascending, descending thereupon that is connected with valve rod, so can directly judge the working state of valve according to the height situation of indicator bar, on the indicator bar, sensors such as position limit switch or Hall element can also be installed, have advantages such as action sensitivity height, safety and stability and good reliability, be fit to fluid control fields such as municipal administration, building, agricultural irrigation, control of desert and use.

Claims

1, a kind of multifunctional water force control valve comprises the bicavate control valve that valve body, sealing dish, plug, barrier film, barrier film dish, valve rod, spring and valve gap are formed, it is characterized in that also including indicating device, described indicating device comprises guide holder, indicator bar and ABAP Adapter, wherein, guide holder is installed on the valve gap, borehole jack is contained in valve rod upper end under the guide holder, indicator bar lower end and the flexible connection of valve rod upper end, and ABAP Adapter is sleeved on the indicator bar and is installed on the guide holder on the hole through outside thread.

2, a kind of multifunctional water force control valve comprises the three-chamber control valve that valve body, sealing dish, plug, barrier film, barrier film dish, valve rod, spring, valve gap and separator are formed, it is characterized in that also including indicating device, described indicating device comprises guide holder, indicator bar and ABAP Adapter, wherein, guide holder is installed on the valve gap, borehole jack is contained in the valve rod upper end under the guide holder, indicator bar lower end and valve rod upper end flexibly connects, and ABAP Adapter is enclosed within on the indicator bar and is installed on the guide holder on the hole through outside thread.