CN2031420U

CN2031420U - Pneumatically-delayed water-saving flushing valve

Info

Publication number: CN2031420U
Application number: CN 88210387
Authority: CN
Inventors: 苏广庆
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-04-09
Filing date: 1988-04-09
Publication date: 1989-01-25

Abstract

A pneumatically-delayed water-saving flushing valve of the utility model used by the high position or low position water tank with a close turn-off and an adjustable rushing water amount, comprises a bonnet (2), a valve body (3), a valve base (4), a valve core and a plurality of an outlet tube (6). The utility model is characterized in that the valve core adopts the airbag structure or the sap cavity structure which is controlled by the compression bar (14) and is compressible and recovered automatically and that the water discharging amount of the water tank of each rushing to the urinal can be controlled by the distance of the compression bar which is drived by the hand pulling or foot stepping lever system while using to economize the rushing water. The valve core is sleeved in the inner chamber of the valve body which enables a smooth on-off action and a close turning off with no phenomenon of leak.

Description

Air pressure time-delay water saving flushing valve

The utility model belongs to a high position or the lower water box technical field that exports flushing valve.

Water-closet is the sanitary fittings of Modern Family and public place indispensability.No matter the water-closet of known band water tank, particularly water closet are to adopt high-level flushing system or low-level flushing system.Its outlet flushing valve has two big shortcomings: (1) be draining afterwards valve closing is not tight, leak easily; (2) be no matter to defecate, urinate, flushing valve just must be the water single voiding of being stored in the water tank after opening, i.e. flushing valve can not be regulated displacement.Owing to exist above-mentioned shortcoming, adopt the flushing device of known band water tank, all to waste a large amount of lives fresh water (tap water) every year, become the problem of a significant.Chinese patent 85200195 and 86202844 was once reported two kinds of lavatories water saving wc flushing cistern respectively, although structure has nothing in common with each other between them, but all be to adopt two flushing valves that discharge water in high and low position (the former has also designed two cover lever control systems) simultaneously, not only displacement has only two " class ", can not regulated at will, and structure more complicated all.In addition, because in above-mentioned two utility model technical schemes, the structure of its outlet flushing valve there is no obvious improvement compared with the prior art, so valve closing is not tight, the shortcoming of leaking easily obviously also can't be overcome.

But the purpose of this utility model to be design a kind of for a high position or lower water box use close tight and regulated at will flushing the time draining total amount the outlet flushing valve, promptly design a kind of water saving flushing valve.

The utility model provides a kind of air pressure time-delay water saving flushing valve, and it is made up of control valve, valve gap, valve body, valve seat, spool and the several parts of outlet, it is characterized in that: (1) spool adopts air bag or sap cavity structure compressible and that can restore voluntarily; (2) valve gap, valve body, valve seat and outlet form two hollow cylinders that diameter is different and join up and down, and valve seat is positioned at two cylindrical connecting portions, is equipped with control valve on the valve gap; (3) the spool actuating mechanism is made up of the depression bar and the lever system that are positioned at the spool below.Whole air pressure time-delay water saving flushing valve is fixed on the exit of water tank bottom by nuts and washers, need not do any change for the other parts of existing water tank, so easy to utilize.The major technique of core content of the present utility model and claim is characterised in that the structure of spool part.Spool in the utility model adopts compressible and the air bag of the recovery of manageing it or the structure of sap cavity formula.Air bag or sap cavity be distortion by compression under the pressure effect of spool depression bar, makes spool break away from valve seat, this moment will discharge water flushing toilet bowl or toilet of water tank outlet.In case the pressure of depression bar disappears, then airbag aeration or sap cavity inflation, water-filling progressively restore, and air bag after the recovery or sap cavity will fit tightly mutually with valve seat, thereby envoy's backwash water valve is closed.After airbag aeration or sap cavity water-filling restore, its sealing surface to the static pressure of valve seat during greater than the full tap water of water tank storage water to the static pressure of airbag wall or sap cavity wall, so the flushing valve of can guaranteeing to economize on water is closed and tightly do not leaked.Because the compress variation of air bag and sap cavity directly is subjected to the control of depression bar pressure, so can grasp pressure according to the urinal situation when using to depression bar, the compress variation of control air bag or sap cavity, because the air inlet port of air bag and the bore of sap cavity water inlet design, correspondingly, the recovery time of air bag and sap cavity will be linear with depression bar pressure, the purpose of the displacement when this has just reached the control Cistern flushing with time-delay formation easily.

Air pressure time-delay water saving flushing valve provided by the utility model, the specific constructive form of its spool air bag and sap cavity can be diversified, we can list following three typical structure examples, and their structural representation is shown in respectively among Fig. 1, Fig. 2 and Fig. 3.Fig. 1 is the air pressure time-delay water saving flushing valve of typical air sac type structure; Fig. 2 is the air pressure time-delay water saving flushing valve of leather bag sap cavity formula structure, and Fig. 3 is the air pressure time-delay water saving flushing valve of piston sap cavity formula structure.In Fig. 1～3,1 is control valve, and 2 is valve gap, and 3 is valve body, and 4 is valve seat, and 5 is water tank, and 6 is outlet pipe, and 7 is the outlet packing ring; 8 is the outlet nut; 9 is the spool air bag; 10 is the topping up leather bag; 11 is the spool plug; 12 is spool (or sap cavity) piston, and 13 is the piston balancing spring, and 14 is the spool depression bar, and 15 is lever system, and 16 is leakage-proof cover.

The most preferred embodiment of air pressure time-delay water saving flushing valve provided by the utility model is described in conjunction with Fig. 1～3 respectively below.

Embodiment one, the air pressure time-delay water saving flushing valve of air sac type structure, and its structure is as shown in Figure 1.The spool of this water saving flushing valve is made of the elasticity prolate ellipsoid shape hollow balloon 9 of the central opening pipe of front end band rounded shoulders and thin bore, and air bag is hung by the feet in valve body 3, and its bottom is fixed on the valve gap 2 and is equipped with control valve 1 and the central opening pipe is stretched in the valve seat 4.Water saving flushing valve provided by the utility model is the purpose that reaches sealing with the rounded shoulders of air bag front end with fitting tightly between the valve seat.The spool opening mechanism is made up of the depression bar 14 that inserts the band plug in the open tube and the lever system 15 of depression bar lower end.For high level cistern, lever system 15 can adopt and pull mechanism, and for lower water box, lever system then should adopt footstep mechanism.When the user pulls or pedal lever system when depression bar is moved up, air bag is by depression bar and plug compression thereof, its nose circle shoulder is separated with valve seat 4, the water saving flushing valve is opened, water tank is to urinal or toilet internal drainage, in case the user looses one's grip and stops to pull or during the pedal lever system, depression bar disappears immediately to the pulling force of air bag, this moment, air or water will enter in the air bag from the central opening pipe of air bag, compressed air bag is restored gradually voluntarily, just can automatically the water saving flushing valve be closed after air bag restores.Because the decrement (being deflection) of air bag directly compression rod pressure is controlled.So the visual large and small situation of just accumulating with the urinal foul of user, control the displacement of this section backwash water valve with the stroke of controlling depression bar.After airbag aeration envoy backwash water valve is closed because when design, calculated make air bag to the static pressure of valve seat during greater than water tank storage full water to the static(al) of airbag wall, close tightly so can guarantee this section backwash water valve, can not leak.

Embodiment two, the air pressure time-delay water saving flushing valve of belt sap cavity formula structure, and its structure is shown among Fig. 2.As seen from Figure 2, this water saving flushing valve is characterised in that the spool sap cavity has several apertures by the bottom, and the topping up leather bag 10 spool plugs 11 and the valve core piston 12 that are bellows structure are formed.Topping up leather bag 10 is placed in valve core piston 12, spool plug 11 tops, and its lower end and valve core piston 12, spool plug 11 fix as one, and the upper end joins with valve gap 2.Depression bar 14 upper ends are with spool plug 11 Joints, and the lower end is connected with lever system 15.Plug is enclosed within on the depression bar 14.When depression bar 14 upwards promoted, the topping up leather bag was compressed inner chamber water storage is extruded, and made the spool plug mention and be separated with valve seat 4, and the water saving flushing valve is opened, the water tank flushing toilet bowl that just can discharge water.In a single day depression bar stops to push plug, then water (or gas) thus aperture by topping up leather bag bottom and control valve 1 reenter and leather bag are expanded restore, at this moment, belt will be pushed down plug up to plug is fitted with valve seat to, and the flushing valve of will economizing on water is closed.For the spool plug is moved up and down steadily, in Fig. 2, on the one hand, the topping up leather bag adopts the bellow-shaped structure; On the other hand, the topping up leather bag is enclosed within and only can be confined to upper and lower motion in the valve body in the valve body.

Embodiment three, the air pressure time-delay water saving flushing valve of piston sap cavity formula structure, and its structure is as shown in Figure 3.As seen from Figure 3, the spool sap cavity of this water saving flushing valve is made up of spool plug 11, sap cavity piston 12, piston balancing spring 13 and the control valve 1 that is placed on the valve gap 2.For the spool flexible movements, sap cavity piston 12 with valve body 3 internal chamber walls for being slidingly matched, this piston lower end and spool plug 11 fix as one, the upper end is connected with valve gap by piston balancing spring 13, and when upwards promoting depression bar 14 with hand or pedal lever system 15, the sap cavity piston moves up thereupon, on the one hand, ponding in the sap cavity is by discharging in the control valve on the valve gap 1, and plug 10 is separated with valve seat 4, and this section backwash water valve is opened.And as long as hand (or pin) unclamps, depression bar stops no longer to move up, water or air just can enter sap cavity from control valve 1, because the parameter of piston balancing spring 13 is selected suitably, make its elastic restoring force equal piston with the frictional force between the body cavity wall, so the sap cavity piston does not almost have resistance when moving down, the Inlet and outlet water of control valve (or gas) speed can add adjusting in addition, as long as have water or air to enter sap cavity, piston just can move down reposefully, up to making piston fall the sap cavity bottom, spool plug 11 is pressed on the valve seat, the flushing valve of will economizing on water is closed.Because the direct compression rod stroke of piston stroke controls,, can save the purpose of wash water again so the displacement can arbitrarily be adjusted water tank and washed by the user time reaches and urinal can be rinsed well at every turn.

From above-mentioned three embodiment, can find out, air pressure delay water-saving flushing valve provided by the utility model, because its spool adopts by the compressible of depression bar control and air bag or the sap cavity structure that can restore voluntarily, can be by the size of user by pulling or exerting oneself during the pedal lever system, random what of a displacement of water tank when control flushing toilet bowl or toilet are to save wash water. Because spool system is enclosed within the body cavity, so stable action in the time of not only can guaranteeing the water-saving flushing threshold switch can not make spool produce drift or deviation, and can guarantee that water-saving flushing valve closes tightly, be difficult for taking place drainage. In a word, air pressure delay water-saving flushing valve provided by the utility model is compared with existing cistern flushing valve, comprise that the lavatory that provides with utility model 85200195 and 86202844 compares with water saving flushing cistern, rational in infrastructure, easy to use, advanced in performance, if applied, must have a tremendous social and economic benefits.

Claims

1, a kind of air pressure time-delay water saving flushing valve of being made up of valve gap 2, valve body 3, valve seat 4, spool and outlet 6 several parts is characterized in that:

A) spool adopts air bag 9 or sap cavity structure compressible and that can restore voluntarily;

B) valve gap 2, valve body 3, valve seat 4 and outlet 6 form large and small different two hollow cylinders that join up and down of diameter, and valve seat is positioned at two cylindrical connecting portions, is equipped with control valve 1 on the valve gap;

C) the spool opening mechanism is made up of the depression bar 14 and the lever system 15 that are positioned at the spool below.

2, by the described air pressure time-delay of claim 1 water saving flushing valve, it is characterized in that the central opening pipe of said spool air bag 9, the elastic hollow prolate ellipsoid for front end band rounded shoulders and thin bore.

3, by the described air pressure of claim 2 time-delay water saving flushing valve, it is characterized in that the spool air bag hangs by the feet in valve body 3, its bottom is fixed on the valve gap 2 that is equipped with control valve 1 and with the central opening pipe and stretches in the valve seat 4.

4,, it is characterized in that said spool air bag opening mechanism is made up of the depression bar 14 that inserts the band plug in the open tube and the lever system 15 of depression bar lower end by claim 1,2 described air pressure time-delay water-saving valves.

5,, it is characterized in that said spool sap cavity has topping up leather bag 10 valve core pistons 12 and the spool plug 11 that several apertures are bellows structure by the bottom and formed by the described air pressure of claim 1 time-delay water saving flushing valve.Plug 11 is enclosed within on the depression bar 14.

6, by the described air pressure of claim 5 time-delay water saving flushing valve, it is characterized in that topping up leather bag 10 is placed in that its lower end and valve core piston 12 fix as one in the valve body, the upper end joins with valve gap 2.

7, by the described air pressure time-delay of claim 1 water saving flushing valve, it is characterized in that said spool sap cavity by spool plug 11, sap cavity piston 12, piston balancing spring 13 and the control valve 1 that is placed on the valve gap 2 are formed.

8, by the described air pressure of claim 7 time-delay water saving flushing valve, it is characterized in that said sap cavity piston 12 with valve body 3 internal chamber walls for being slidingly matched, piston lower end and spool plug 11 fix as one, the spool plug is enclosed within on the depression bar 14.

9, by the described air pressure time-delay of claim 8 water saving flushing valve, it is characterized in that sap cavity piston 12 contacts with valve gap 2 by piston balancing spring 13.