CN2166290Y

CN2166290Y - Adjustable time-delay self-closing water-economizing valve

Info

Publication number: CN2166290Y
Application number: CN 93233233
Authority: CN
Inventors: 王抚生
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-17
Filing date: 1993-02-17
Publication date: 1994-05-25
Anticipated expiration: 2003-02-17

Abstract

The utility model relates to an adjustable time-delay self-closing water-saving valve (as shown in the figure 2 of the specification), which is composed of a press button, an elastic rubber cap, a piston, a piston cylinder, a valve rod, a sealing ring, a valve body, a valve sheet, etc. Running water can flow into a piston upper bowl through a piston rod when the press button is pressed, and the running water can push the piston to move downwards to open the valve; then, the rubber cap is recovered to deform to pull the piston to move upwards by the valve rod, and the piston is forced to enable the controlled water in an upper cavity to drain outside via throttle small holes, and the time-delay purpose is reached; then, the self-closing action is carried out. The throughflow area of the throttle small holes is adjustable. The utility model has sufficient time-delay function and the adjustable water-saving function; the structure is simple, and the manufacture is convenient. The utility model can be used as the water valves of stations, quays, trains, etc. and can be used as the flushing valves of sanitary ware for urination and defecation.

Description

Adjustable time-delay self-closing water-economizing valve

The utility model relates to a kind of adjustable delay auto cut-off water saving valve (hereinafter to be referred as water-saving valve), and form is normally closed, opens the back and press setting and delay time, and finishes behind the one action self-closing.Be specially adapted to do that public places such as the flushing valve of large and small sanitary ware for stool and station, harbour, train need frequently, the water valve from the beginning used of water occasion in short-term.

The Chinese patent of China Patent No. 8929848 has been introduced a kind of delay-self-closing flushing valve.It is inadequate using the delay function of this valve of proof.In addition, according to the product descritption introduction of this patent, this valve is at hydraulic pressure during less than 0.05MPa, valve just can not be closed, promptly must be under the pressure more than the 0.05MPa could proper functioning, even and in fact under the pressure of 0.1MPa, this valve also is difficult to proper functioning.

The purpose of this utility model just is to conceive a kind of work time-delay fully, and it is adjustable to delay time, and also can open the delay self-closing water-saving valve of proper functioning under the very low situation of hydraulic pressure.

The utility model is to utilize O type circle sealing control hydroecium, utilize backwater throttling arrangement throttling regulating and controlling hydroecium in the time of letting out reach the purpose of work time-delay.

Fig. 1 is the schematic representation of the invention that provides of the above-mentioned patent No.; Fig. 2 is the schematic representation of the utility model water-saving valve.All be in closed condition.

Their structure and working principle thereof are described respectively below in conjunction with two secondary figure.

As shown in Figure 1, the water valve that the patent No. 8929848 is provided, mainly by valve rod ［ 10 ' ］, Capsule ［ 4 ' ］, piston with rod ［ 8 ' ］, piston cylinder ［ 12 ' ］, valve block ［ 14 ' ］ and valve body ［ 15 ' ］ and piston cylinder cover ［ 20 ' ］ are formed; Valve rod ［ 10 ' ］ is gone up suit O RunddichtringO ［ 11 ' ］; Let out passage in having and communicate with the drain chamber of valve body between piston cylinder and valve body, the hole that piston has bar portion to pass piston cylinder outer cover bottom connects with valve block ［ 14 ' ］, and valve block is contained in the valve port upside of valve body; The bar portion of piston has aperture to lead directly to piston upper chamber.

This valve is when off working state, press water feeds piston upper chamber from piston rod portion aperture, because the elastic force effect of Capsule ［ 4 ' ］, Capsule is strained valve rod ［ 10 ' ］ all the time, thereby O-ring seals ［ 11 ' ］ is pressed on the water shutoff prostomum face of piston cylinder ［ 12 ' ］, outflow to making current not pass piston cylinder, no current flow in the whole system, and system pressure is in state of equilibrium.Thereby under first valve state, piston upper chamber and valve inleting water chamber (that is valve block ［ 14 ' ］ bottom) has equal unit pressure (tap water pressure).But because piston area is greater than the valve block area, thus the downward pressure that is subjected on the piston greater than upwarding pressure of being subjected on the valve block, this pressure official post piston is in the piston cylinder bottom, and by valve block valve port is sealed; Depress valve rod ［ 10 ' ］ during work, the tap water of piston upper chamber flows out outside the piston cylinder by piston cylinder water shutoff mouth, lets out the drain chamber discharge that passage flows to valve body ［ 15 ' ］ in the warp.The water of water-inlet cavity enters into the piston cylinder epicoele by piston rod portion aperture again and replenishes, system produces flow, press water from the valve inleting water chamber when piston rod portion aperture upwards flows, just produce the pressure loss, make the pressure of the pressure on piston top less than the valve block bottom, this pressure difference is lifted valve block together with piston, and promptly the valve port on the valve body is opened, tap water just flows into drain chamber from water-inlet cavity, thus valve working.

As shown in Figure 2, the utility model adjustable delay auto cut-off water saving valve comprises button ［ 1 ］, valve gap ［ 3 ］, Capsule ［ 4 ］, valve rod ［ 5 ］, cylinder cap ［ 6 ］ and piston cylinder ［ 12 ］, piston ［ 8 ］ and seal ring ［ 9 ］ with single rod, be contained in the valve block ［ 14 ］ of piston-rod lower end, valve body ［ 15 ］ is characterized in that piston rod has hollow hole ［ 19 ］ to communicate with the valve inleting water chamber; Valve rod ［ 10 ］ connects through sealing mouth and the valve rod ［ 5 ］ that the piston rod hollow hole passes the piston rod upper end, has seal ring ［ 11 ］ to seal piston rod upper end sealing mouth on the valve rod ［ 10 ］, thereby constitutes time-delay control hydroecium ［ 17 ］ by the piston cylinder epicoele; There are warp-wise and axial bore ［ 18 ］ that the damping hole ［ 16 ］ of control hydroecium on valve rod ［ 5 ］ communicated with the valve body drain chamber on the valve rod ［ 10 ］.The flow area of damping hole ［ 16 ］ is by screw rod ［ 2 ］ control and adjusting.

Water shutoff film ［ 7 ］ is arranged, to increase the seal of piston cylinder at the cylinder cap place.

The bearing support ［ 21 ］ of band sealing gasket ［ 13 ］ is housed, with the support piston cylinder between valve body sealing mouth and piston cylinder; There is spring ［ 20 ］ to be contained in this position.

Capsule ［ 4 ］ is used metal spring instead and can be reached performance requirement of the present utility model equally in fact.

Below in conjunction with accompanying drawing this section water valve working principle is described.

This water-saving valve is when work, press the button ［ 1 ］, Capsule ［ 4 ］ distortion, promote valve rod ［ 5 ］ and ［ 10 ］ and move downward together with O RunddichtringO ［ 11 ］, piston rod upper end sealing mouth is opened, press water just enters control hydroecium ［ 17 ］, because piston area is greater than the valve block area, the press water that enters hydroecium ［ 17 ］ just promotes piston and down moves together with valve block, and valve port promptly is opened, and press water enters drain chamber from water-inlet cavity, flow into the water position, valve enters work.After this, owing to removed by the power on button, because Capsule ［ 4 ］ tries hard to recover the shape of oneself, by moving on spring band ovable valve stem ［ 5 ］ and ［ 10 ］, by O shape circle ［ 11 ］ piston rod upper end sealing mouth is shut rapidly, press water can not enter hydroecium ［ 17 ］ again; Capsule continues to recover the shape of oneself, utilize elastic force to pass through to move on valve rod ［ 10 ］ the pulling piston, radial hole and the axial bore ［ 18 ］ of water on valve rod ［ 10 ］ with hydroecium ［ 17 ］, the axial bore, the radial hole ［ 16 ］ that reach on the valve rod ［ 5 ］ are extruded and are let out passage in the inflow, and valve just begins from closed procedure.Because the flow area of throttle orifice ［ 16 ］ is less, let out slower in the water of hydroecium ［ 17 ］, be that the speed of moving on the piston is slower, like this, valve block just has a sufficient time-delay process Zi opening the back to self-closing, even it is very low at tap water pressure, push away the hydrodynamic(al) piston and move down, under the situation of the valve port of promptly not opening, as long as press the button, spring ［ 20 ］ also can be pushed valve block ［ 14 ］ open and open valve, and the time-delay process is still with above-mentioned the same.Last valve block is self-closing, and work stops.

By said structure feature and principle Analysis, be not difficult to find out, the water valve that the patent No. 8929848 is provided, when valve rod ［ 10 ' ］ by clicked unclamp after, under the elastic force effect of Capsule, O-ring seals ［ 11 ' ］ will promptly be closed piston cylinder, and the press water that comes up in the aperture of piston rod portion is full of piston upper chamber very soon, stop to flow the pressure on the upper and lower unit area of piston restore balance very soon again (under tap water pressure); As previously mentioned, then valve block is closed valve port soon, and valve has stopped work soon, and water user's water requires but to be far from reaching; The utility model water-saving valve, the valve back that is opened is by the water of control hydroecium from time control that throttle orifice is discharged the self-closing time, have sufficient delay function, particularly the flow area of this water-saving valve throttle orifice ［ 16 ］ can and be regulated by adjusting screw ［ 2 ］ control.When screw ［ 2 ］ was down twisted, throttle orifice ［ 16 ］ turned down, and lets out time lengthening in the water in the hydroecium ［ 17 ］, and after promptly valve was opened, the operating time of valve (just valve block is from closed procedure) prolonged, thereby guaranteed fully time-delay, satisfied the needs of water; Otherwise when screw ［ 2 ］ was screwed on, throttle orifice ［ 16 ］ was opened greatly, and the time of letting out in the water in the hydroecium ［ 17 ］ is short, that is valve working time (just valve block is from closed procedure) shortening, thereby reached the purpose of water saving.

This water-saving valve has sufficient delay function in a word, and delay time is adjustable, even and under the very low situation of pressure, also can open valve by the elastic force of pressure spring, therefore, this valve performance is quite reliable.

Claims

1, a kind of adjustable delay closes water-saving valve, comprise button [1], valve gap [3], Capsule [4], valve rod [5], cylinder cap [6] and piston cylinder [12], piston [8] and seal ring [9] with single rod, be contained in the valve block [14] of piston-rod lower end, valve body [15], it is characterized in that piston rod has hollow hole [19] to communicate with the valve inleting water chamber, valve rod [10] passes piston rod upper end sealing mouth and valve rod [5] connection through the piston rod hollow hole, valve rod [10] is gone up seal ring [11] and is sealed piston rod upper end sealing mouth, thereby the piston cylinder epicoele constitutes time-delay control hydroecium [17], has on the valve rod [10] radially to reach axial discharge orifice [18] the adjustable damping hole [16] of control hydroecium on valve rod [5] communicated with the valve body drain chamber.The flow area of damping hole is by screw [2] control and adjusting.

2, water-saving valve according to claim 1, the pressure spring ［ 20 ］ in the source that turns on the power when it is characterized in that between valve block and piston cylinder, being equipped with as low pressure.

3, water-saving valve according to claim 1 and 2 is characterized in that the cylinder cap place is equipped with water shutoff film ［ 7 ］.

4, water-saving valve according to claim 1 and 2 is characterized in that having the bearing support ［ 21 ］ of band sealing gasket ［ 13 ］ between piston cylinder and valve body sealing mouth, piston cylinder is bearing on the bearing support.

5, according to the described water-saving valve of claim 3, it is characterized in that between piston cylinder and valve body sealing mouth, having the bearing support ［ 21 ］ of band sealing gasket ［ 13 ］, piston cylinder is bearing on the bearing support.

6, water-saving valve according to claim 1 and 2 is characterized in that Capsule ［ 4 ］ is a metal spring.

7, water-saving valve according to claim 3 is characterized in that Capsule ［ 4 ］ is a metal spring.

8, water-saving valve according to claim 4 is characterized in that Capsule ［ 4 ］ is a metal spring.

9, water-saving valve according to claim 5 is characterized in that Capsule ［ 4 ］ is a metal spring.