CN2318462Y - Timing valve - Google Patents

Abstract

The utility model relates to a self-closing valve technique. A timing valve comprises a valve body and an upper cover screwed on the valve body; the upper end of the timing valve is connected with a handle, and the lower end of the timing valve passes through the valve cover and is inserted in the pull rod of a valve cavity; a column piston is fixed on the pull rod, a spring is sheathed on the pull rod, and a time hole is arranged on the column piston. The timing valve has the advantages of correct timing, simple structure, low cost, low failure rate, and reliable use.

Description

Timing valve

The utility model belongs to the technical field of self closing stop valve.

Used timing valve in now industrial and people's daily life, general is by micro-processor controlled, carry out micro-processor controlled timing valve regularly accurately, but have mechanism's complexity, the equipment cost height, the rate of fault height, and need consumes energy.The timing valve of pure machinery is complex structure then, the cost height, and bad timing is true.

The purpose of this utility model provide a kind of simple in structure, cost is low, timing valve accurately regularly.

This timing valve comprises valve body, is screwed in the valve gap of valve body upper end, the pull bar of valve pocket is inserted in the hole that the upper end is connected with handle, valve gap is passed in the lower end, lower end at pull bar is fixed with plunger, is with spring on the pull bar of plunger and valve cover chamber, is provided with the time hole on plunger.

Owing to be provided with the time hole on plunger, when pulling valve, handle drives plunger by pull bar and moves up, liquid in the not water-guiding cavity of valve pocket is gone in the closed chamber of plunger bottom through the time orifice flow, when decontroling handle, plunger moves down under the effect of spring, and liquid then slowly flows back to the former chamber through the time hole from closed chamber, thereby realize regularly, it is just regularly next by flowing of certain quantity of fluid, and is therefore regularly accurate, simple in structure, rate of fault is low, and cost is low.

Accompanying drawing shows embodiment of the present utility model, wherein:

Figure 1 shows that the plan view of timing valve;

Figure 2 shows that along the sectional view of A-A line shown in Figure 1;

Figure 3 shows that the worm's eye view of timing valve.

Timing valve as shown in the figure, comprise valve body 1, be screwed in the valve gap 2 of valve body 1 upper end, the upper end is hinged on handle 3 upper and lower ends and passes hole on the valve gap 2 and insert pull bar 4 in the valve pocket, is contained in the sealing gasket 10 of pull bar 4 lower ends, be contained in the plunger 5 on the pull bar 4 on sealing gasket 10 tops, and plunger 5 is T-shaped, is enclosed within the spring 6 on the pull bar 4 of 2 of plunger 5 and valve gaps, is provided with time hole 7 on plunger 5, on plunger 5, be provided with discharge orifice 8, on the plunger wall at the end opening place of discharge orifice 8, be welded with locking sheet 9.The not water-guiding cavity of the valve pocket of valve body 1 is stepped shaft.On the intermediate step of water-guiding cavity not, the oil sealing 11 that can contact with plunger 5 is housed.

In use, in the not water-guiding cavity of valve pocket, annotate and oil, plate active handle then, not the oil in the water-guiding cavity wash open the locking sheet from plunger discharge orifice and the time hole flow into T shape plunger below fast closed chamber, thereby open valve, water flows through, after the people decontrols handle, plunger moves downward under the effect of spring, and plunger open back oil not from discharge orifice when dirty, the locking sheet is about to discharge orifice and shuts, the oil in the closed chamber can only be in the little time hole slowly flow back to epicoele, oil slowly to backflow, plunger moving downward slowly, through after a while, oil all flows back to, plunger moves to bottom, valve closing.Because the chamber is a fixed volume, and is airtight, oil does not have loss, and therefore regularly accurately, and valve arrangement is simple, and cost is low, and rate of fault is low, uses reliable.

Claims (4)

1, a kind of timing valve, comprise valve body (1), be screwed in the valve gap (2) of valve body (1) upper end, the pull bar (4) of upper end and handle (3) is connected, valve gap is passed in the lower end (2) hole insertion valve pocket, it is characterized in that lower end non-movable piston (5) at pull bar (4), on the pull bar (4) between plunger (5) and valve gap (2), be with spring (6), on plunger (5), be provided with time hole (7).

2, timing valve according to claim 1 is characterized in that plunger (5) is T-shaped.

3, timing valve according to claim 1 is characterized in that being provided with discharge orifice (8) on plunger (5), be welded with locking sheet (9) on the plunger wall at the end opening place of discharge orifice (8).

4, timing valve according to claim 1 is characterized in that the not water-guiding cavity of the valve pocket of valve body (1) is stepped shaft.

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