CN2253750Y

CN2253750Y - Time-delay self-close flushing valve for closet

Info

Publication number: CN2253750Y
Application number: CN 96205924
Authority: CN
Inventors: 周宾
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-02-15
Filing date: 1996-02-15
Publication date: 1997-05-07
Anticipated expiration: 2006-02-15

Abstract

The utility model relates to a time-delay self-close flushing valve for a closet, particularly a self-closing flushing valve of a diaphragm valve which can make the valve closed and decelerated. The utility model is characterized in that the time-delay self-close flushing valve for a closet is also provided with a rubber diaphragm, a valve clack, a seat of the valve clack, a guide rod, wherein, a valve body is internally provided with the rubber diaphragm with damping holes; the upper end of the valve body is fixed between the valve body and a valve cover; the lower end is fixed between the valve clack and the seat of the valve clack and is covered on a water outlet; the guide rod which is connected with a guide valve rod extends to the internal part of the seat of the valve clack, and a guide valve on the guide valve rod is covered on the seat of the valve clack. The utility model has advantages of simple structure and reliable use, and the time-delay self-close flushing valve for a closet is the flushing valve of the closet which has great popularization value.

Description

The flushing valve of a kind of closet delay-self-closing

The utility model relates to a kind of toilet stool washing valve, exactly is the flushing valve of a kind of closet delay-self-closing, particularly has the self-closing flushing valve of the diaphragm valve that can make the valve closing deceleration.

Traditional toilet flush valve such as the flushing valve of C723W-4T type delayed self-close lavatory pan, form by pilot valve on valve body, valve gap, dust cap, lifting handle, bellows, pilot stem, the pilot stem and piston etc., it relies on the lifting of piston rigid motion to realize opening and closing, because the friction between piston and the valve body, very easily cause wearing and tearing, and the damping hole on the piston is easily stopped up by impurity in the water, has all influenced normal use.Filter screen has been set up in the flushing valve of YZF type, but inconvenience is clear and coherent, and the flushing valve of C21W-4T type has additional antifouling device, and valve body is strengthened.

The purpose of this utility model is to provide a kind of simple in structure, service-strong toilet flush valve at above-mentioned deficiency of the prior art.

The purpose of this utility model realizes with following technical scheme: for including valve body 1, valve gap 2, dust cap 12, lifting handle 11, bellows 7, the closet delay-self-closing flushing valve of the pilot valve 10 on pilot stem 8 and the pilot stem 8, it has also designed diaphragm of rubber 6, flap seat 4, flap 5, guide rod 9, wherein, be provided with the diaphragm of rubber 6 of band damping hole 15 in the valve body 1, the upper end of diaphragm of rubber 6 is fixed between valve body 1 and the valve gap 2, its lower end is fixed between flap seat 4 and the flap 5, and the delivery port 14 of covering valve body 1, guide rod 9 is connected with pilot stem 8, and stretch in the flap seat 4, the pilot valve 10 on the pilot stem 8 covers on the flap seat 4.When diaphragm of rubber 6 was in free state, the diaphragm of rubber 6 of flap seat 4 and flap 5 clampings was equivalent to a cover plate, and with delivery port 14 sealings of valve body 1, simultaneously, the pilot valve 10 on the pilot stem 8 is with 4 sealings of flap seat; Rotate lifting handle 11, pilot stem 8 is raised, compress bellows 7, flap seat 4 is opened, because the water passing capacity of damping hole 15 not as good as the drainability of flap seat 4, causes the hydraulic pressure in the diaphragm of rubber 6 to reduce gradually, on the one hand because the effect of hydraulic pressure, because diaphragm of rubber 6 inwardly shrinks the component that makes progress that produces, and flap 5 is raised, the delivery port 14 of valve body 1 is opened and is discharged water on the other hand; Unclamp lifting handle 11, bellows 7 is being pressed under the screen resilience effect on the flap seat 4, and diaphragm of rubber 6 inside water pressure are gradually high, restores to the original state gradually, and under waterpower and action of gravity, flap 5 falls sealing delivery port 14.The utility model has changed traditional piston rigid motion structure, utilizes the compliant motion of diaphragm of rubber 6, under the guide effect of guide rod 9, reliably, stably seal delivery port 14, and because the elastic telescopic of diaphragm of rubber 6 itself, damping hole 15 is difficult for stopping up, and has guaranteed normal use.Said structure can be suitable for doing large and small toilet flush valve to be used.

Can also extend oviduct 18 in the bottom of flap 5, offer the central through hole 17 that communicates with oviduct 18 in pilot stem 8 and the guide rod 9, this structure has increased anti-pollution function under the situation that does not increase valve volume, be particularly suitable for doing the lavatory pan flushing valve and use.It utilizes the convergent effect of horn mouth to active cross-section, causes low pressure around the horn mouth end, sucks air by central through hole 17, has played the effect that air cuts off, and when flushing stops, is normal pressure in the pipe, can prevent that sewage backflow from polluting.

Lifting handle 11 in the utility model both can use the lever handle of conventional design, also can adopt following design, be that described lifting handle 11 is screw sheels, salient point 19 is arranged on its inwall, offer spiral grooves 20 on pilot stem 8 upper ends and the perisporium that handle 11 contacts, salient point 19 moves in spiral grooves 20, thereby forms the relative elevating movement of screw sheel and pilot stem 8.

In addition, can also design on spiral grooves 20 has location recess 21, not only is convenient to form different displacement, the utility model can also be used as many grades of water taps of servo-actuated.

The utility model has changed traditional piston structure, and it is simple in structure, use reliably, and be a kind of Device for relieving nature flushing valve that has promotional value.

Fig. 1 is the utility model structure diagram.

Fig. 2 is the utility model structure diagram that has additional oviduct.

Fig. 3 is to use screw sheel to make the utility model structure diagram of lifting handle.

Fig. 4 is the perisporium expanded view of pilot stem upper end among Fig. 3.

The utility model is described in further detail below in conjunction with drawings and Examples.

Referring to Fig. 1, the utility model is made up of valve body 1, valve gap 2, dust cap 12, lifting handle 11, bellows 7, pilot stem 8, pilot valve 10, diaphragm of rubber 6, flap seat 4, flap 5, guide rod 9, the left side of valve body 1 is a water inlet 13, the bottom is a delivery port 14, and valve body 1 is fixedlyed connected by nut 3 with valve gap 2.Described lifting handle 11 is common lever handle, is arranged on a side of dust cap 12, also is provided with timing bolt 16 on the dust cap 12.Its main design is the diaphragm of rubber 6 in the valve body 1, can adopt bowl-type capsule with two damping holes 15, its upper end presses solidly between valve body 1 and valve gap 2, and the lower end presses solidly between flap seat 4 and flap 5, and the lower end of diaphragm of rubber 6 should be able to cover the delivery port 14 of valve body 1.Guide rod 9 and pilot stem 8 thread connection, and guide rod 9 is stretched in the flap seat 4, play the guiding role, and the pilot valve 10 on the pilot stem 8 also should cover on the flap seat 4, exactly, is that pilot valve 10 can cover the flap mouth.Flap seat 4 is a thread connection with flap 5.The utility model can be done the Device for relieving nature flushing valve and use.

The difference of structure shown in Figure 2 is that flap 5 bottoms also extend oviduct 18, and, offering the central through hole 17 that communicates with oviduct 18 in pilot stem 8 and the guide rod 9, this structure has anti-pollution function, thereby is particularly suitable for doing lavatory pan and uses towards the device valve.

In Fig. 3, the structure shown in Figure 4, lifting handle 11 adopts a screw sheel, three salient points 19 are arranged on its inwall, the corresponding great achievement disc that adds is answered in pilot stem 8 upper ends, its perisporium that contacts with the screw sheel inwall is provided with in three road spiral grooves 20, can also be provided with some location recess 21 on the spiral grooves 20, and salient point 19 moves in spiral grooves 20, not only can control the water yield easily, can also be converted to and do the equivalence design that many grades of water taps of servo-actuated use.

Claims

1. closet delay-self-closing flushing valve, it comprises valve body (1), valve gap (2), dust cap (12), lifting handle (11), bellows (7), pilot valve (10) on pilot stem (8) and the pilot stem (8), it is characterized in that it also includes diaphragm of rubber (6), flap seat (4), flap (5), guide rod (9), wherein, be provided with the diaphragm of rubber (6) of band damping hole (15) in the valve body (1), the upper end of diaphragm of rubber (6) is fixed between valve body (1) and the valve gap (2), its lower end is fixed between flap seat (4) and the flap (5), and the delivery port (14) of covering valve body (1), guide rod (9) is connected with pilot stem (8), and stretch in the flap seat (4), the pilot valve (10) on the pilot stem (8) covers on the flap seat (4).

2. flushing valve according to claim 1 is characterized in that oviduct (18) is extended in the bottom of flap (5), offers the central through hole (17) that communicates with oviduct (18) in pilot stem (8) and the guide rod (9).

3. flushing valve according to claim 1, it is characterized in that described lifting handle (11) is a screw sheel, salient point (19) is arranged on its inwall, offer spiral grooves (20) on pilot stem (8) upper end and the perisporium that handle (11) contacts, salient point (19) moves in spiral grooves (20).

4. flushing valve according to claim 3 is characterized in that location recess (21) is arranged on the spiral grooves (20).