CN2250983Y

CN2250983Y - Delay flushing valve for toilet cistern

Info

Publication number: CN2250983Y
Application number: CN 96225508
Authority: CN
Inventors: 粘希文
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-02
Filing date: 1996-03-02
Publication date: 1997-04-02
Anticipated expiration: 2006-03-02

Abstract

The utility model relates to a delay drain valve for a flushing cistern of a toilet. An upper and a lower valve bodies of the valve are connected into a whole in a thread way, and the inner part of the valve is provided with a valve core and a seal sleeve of the valve core. The utility model is characterized in that the valve core is a hollow slide block, and the lower end of the slide block is formed into an inverse cone shape and is contacted and sealed with the seal sleeve in a linear way. The utility model overcomes the defect that the existing gravity valve core can not carry out the delaying drain. The hollow valve core is adopted to cause the downward gravity of the valve core is greater than the upward rising force born by the self valve core, and the valve core can fall down slowly in a delay time way. The utility model can adjust the delay time self-closing time by that the balance weight of the valve core is increased and reduced or the lead of the valve core is changed.

Description

Lavatory flushing cistern time-delay draining valve

The utility model relates to a kind of lavatory flushing cistern time-delay draining valve.

In recent years, people have taked various technical measures and have obtained certain effect the water closet problem of water saving, but all fail to reach desirable effect.Its reason is that the prior art ubiquity two kinds of defectives, and a kind of is that one-side pursuit is saved and dashed just water, acts on and ignored flushing cistern at all, promptly must at first satisfy towards just health needs, otherwise be irrational water saving.Another kind then in contrast, thinking water-tight is exactly water saving, only unilaterally pursues sealing and satisfies and dash just health needs, and ignore the one side of water saving rationally, still lacks collection and satisfies and dash just that health demand is the effective technical scheme of one with water saving rationally.

The described water-saving valve of patent specification ZL89219667.X is arranged is example with representative, significantly exist following defective: 1. designed shell-type hollow body time-delay mechanism, basic time-delay and the quantitative effect of not producing, so when this valve is installed in the flushing cistern of communal toilet, because people get used to the hydrocone type of " row of drawing one case ", the turnover plate type water tank, only drawing promptly looses one's grip leaves away, the opening time of valve only can reach 1 second, the displacement of valve at most also can only reach 2.5 liters, no delay-self-closing function, basic not dashing defecated only, the crook that at utmost can only ight soil be flushed to the sewer transverse tube, in the unable descending pipe of ight soil being rushed in sewer, therefore can cause ight soil to stop up the sewer phenomenon.Do not dash just health needs so not only satisfy, and can be because of dredging sewer spended time and funds.2. in the spool of above-mentioned draining valve the counterweight iron core is housed, this iron core gets rusty easily and pollutes ceramic closet.

The purpose of this utility model is to overcome existing defective in the prior art and flushing cistern time-delay draining valve in a kind of lavatory is provided.

The utility model above-mentioned purpose is finished like this.

A kind of lavatory flushing cistern time-delay draining valve, the upper valve body of this valve is threaded with following valve body and is integral, wherein the spool that has the helical pitch post is equipped with in upper valve body inside, the upper valve body sidewall is provided with the inlet opening, in the following valve body sealing shroud that matches with spool is housed, upper and lower cap body and associate member thereof are equipped with in following valve body outside, it is characterized in that said spool is a hollow spool, and this spool lower end is turbination.

Regulate control displacement purpose in order to reach, the helical pitch column sleeve of the said spool of this draining valve is equipped with regulates the counterweight cushion rubber.Utilize the both adjustable valve core deadweights of above-mentioned cushion rubber, the helical pitch distance of adjustable valve core helical pitch post plays the effect of regulating spool delay-self-closing time again.

The above-mentioned spool design of the utility model is to realize the key of draining valve delay-self-closing, and spool is taked hollow-core construction, makes himself gravity be slightly larger than the suffered buoyancy of spool.In opening and closing the draining valve process and since spool be subjected to after opening ponding in the water tank to buoyancy, can slowly fall, time-delay can reach for 5 times in second, and delay time is adjustable.

Introduce the utility model specific embodiment below in conjunction with accompanying drawing.

Fig. 1 is the utility model integral installation distribution structure schematic diagram.

Fig. 2 is the utility model valve core structure schematic diagram.

As shown in drawings, the valve body of this draining valve is threaded by upper valve body 3 and following valve body 6 two parts and forms one, the lower end wherein is housed in the upper valve body 3 is obconic hollow spool 4, spool 4 is provided with helical pitch post 2, upper valve body 3 sidewalls are processed with the inlet opening, the sealing shroud 5 that matches with above-mentioned spool 4 is housed in the following valve body 6, oblique circle 7 is equipped with in following valve body 6 outsides, flat circle 8, uppercap body 9, following cap body 10 and O type circle 11, bleed off pipe 1 communicates with following valve body 6, for making above-mentioned draining valve have the time-delay adjustable function, on above-mentioned spool helical pitch post 2, can be equipped with counterweight cushion rubber 12.

Claims

1. lavatory flushing cistern time-delay draining valve, the upper valve body of this valve [3] is threaded with following valve body [6] and is integral, wherein the spool [4] that has helical pitch post [2] is equipped with in upper valve body [3] inside, upper valve body [3] sidewall is provided with the inlet opening, the sealing shroud [5] that matches with spool [4] is housed in the following valve body [6], and upper and lower cap body [8,9] and associate member thereof are equipped with in following valve body [6] outside, it is characterized in that said spool [4] is a hollow spool, this spool [4] lower end is turbination.

2. draining valve according to claim 1 is characterized in that the helical pitch post [2] of said spool [4] is set with adjusting counterweight cushion rubber [12].