CN2250380Y - Water saving valve of delay flushing cistern - Google Patents

Abstract

The utility model relates to a water saving valve of a delay flushing water tank. The utility model is characterized in that the peripheral surface of a casing of a valve core is provided with a spherical surface or a conical surface which is matched with a valve seat. The lower end of the casing is provided with a through hole. A central through hole which is arranged at the upper end top of the casing is communicated with the lower end of a guide pipe which is provided with an end cover. The external shape of the annual valve seat is matched with a lug boss which is arranged in a valve cavity, the upper inner diameter and the lower inner diameter of the annual valve seat are same, and the wall of the upper end of the annual valve seat is thin slightly. The utility model has the advantages of simple structure, reliable performance and convenient operation. The utility model not only can meet the need of sanitary flushing, but also can achieve the purpose of water saving.

Description

Delayed type flushing cistern water-saving valve

The utility model relates to a kind of valve, especially for the draining valve in the flushing cistern.

Draining valve kind in the flushing cistern is a lot of at present, for the water that makes water tank can discharge q.s is not wasted water again, people also design some schemes, as on the utility model patent communique disclosed a kind of＜lavatory flushing cistern water-saving valve its primary structure is that valve body is two parts of screw thread butt joint, is equipped with the skirt shape elastic packing ring set that matches with the curved spool of sealed end at the joint of valve body.Be provided with the quantitative controlling organization of forming by axle bed, axle, adjusting rod, adjustable bobber at the upper valve body sidewall.Its weak point is that this water yield controlling organization is located at the valve body outside, not only needs to set up many component, occupies the limited inner space of water tank, and the reliable not enough jam valve plug phenomenon that easily produces of performance, cause valve often to open and do not close waste water resource.

In view of being to provide a kind of spool self, above-mentioned weak point the purpose of this utility model of the prior art can control the delayed type flushing cistern water-saving valve of the discharging water yield.

The purpose of this utility model can realize by following measure: a kind of delayed type flushing cistern water-saving valve, its valve body lower portion is the short tube that has arm, this valve body above short tube is the perisporium of concentricity line with it and the cylinder that the upper end all is provided with through hole, be provided with on arm and be attached thereto logical vertical bleed off pipe, the position in valve pocket above the arm is provided with the ring-shaped valve seats that is complementary with spool; Can be equipped with spool and the guide pipe that is attached thereto and switch drag-line above it, it is characterized in that: the side face of this spool housing has the sphere or the conical surface that is complementary with valve seat, the housing lower end is provided with through hole, and the central through hole on top, upper end is connected with the guide pipe lower end that the upper end is provided with end cap.Preferably outer shape is identical up and down with the ring-shaped valve seats internal diameter that the valve pocket inner convex platform is complementary, and just the wall of upper end is thinner slightly.Valve body can be to link to each other split typely up and down, also can be that the integral type of lid is arranged at the valve body top that connects together up and down.

The utility model mainly includes: valve body, spool, valve seat, guide pipe, bleed off pipe and switch drag-line.Wherein valve body lower portion is the short tube that has arm, this valve body above short tube is the perisporium of concentricity line with it and the cylinder that the upper end all is provided with through hole, the valve body of its composition can be an integral type, also can be split type, is provided with to be attached thereto logical vertical bleed off pipe on arm.Be provided with spool in the uuper valve chamber, the side face of its hollow housing has the central through hole on the sphere that is complementary with valve seat or top, conical surface upper end to be connected with the guide pipe lower end that the upper end is provided with end cap.The spool lower end also is provided with through hole.Position in valve pocket above the arm is provided with the elastic packing valve seat that is complementary with the spool sphere or the conical surface.Preferably this ring-shaped valve seats internal diameter that is located on the valve body inner convex platform is identical up and down, and outside shape then is complementary with the shape of valve pocket inner convex platform, and just the wall of upper end is thinner slightly.Right above valve core case drops on it, corresponding change then can be made with the shape of spool in the upper end that contacts with spool, makes sealing effectiveness better.

When valve is in closed condition, be filled with air in certain amount in spool and the guide pipe, it is closely cooperating with elastic seat under the pressure of self gravitation and water.When lifting the switch drag-line, the instantaneous top that is thus lifted to body cavity of spool, the water in the water tank is discharged via valve seat and following valve body thereof, owing to have certain air thereby have certain buoyancy in spool and the guide pipe, is floating state in water.To drop to certain position right when the underwater, its to the buoyancy of spool and guide pipe during less than its gravity spool can descend automatically, add negative pressure spool that draining produces and place on the valve seat both to cooperate again to realize that sealed valve closes.Because to the requirement difference of the each displacement of flushing cistern, weight that can be by changing spool and connected components or the method that changes the capacity of spool and connected components and establish pore on the guide pipe end cap are adjusted delay time, thereby reach the purpose of adjusting flow.

Drawing is described as follows:

Fig. 1 is the cross-sectional schematic of the utility model embodiment 1.

Fig. 2 is that the master of valve seat looks schematic diagram among Fig. 1.

Fig. 3 is the cross-sectional schematic of the utility model embodiment 2.

Fig. 4 is that the master of valve seat looks schematic diagram among Fig. 3.

The utility model is described in further detail to utilize the example shown in the accompanying drawing.In the cross-sectional schematic of split type delayed type flushing cistern water-saving valve shown in Figure 1, following valve body (2) is for having the short tube of arm, be provided with the external thread part that links to each other with nut be threaded on this short tube top perisporium of concentricity line and the upper valve body (1) that the upper end all is provided with through hole with it in the bottom of this short tube, on arm, be provided with vertical bleed off pipe (7).Be provided with spool (3) in the upper valve body chamber, the side face of its hollow housing is a sphere, and the central through hole on upper end top and upper end are provided with the guide pipe 6 of end cap (8)) lower end is connected.Switch drag-line (5) one ends are fixed on that the other end is a free end on the end cap of spool, and the spool lower end also is provided with through hole, and the position on the valve body arm is provided with the elastic seat (4) that is complementary with the spool sphere.This profile is thinner slightly with the wall of the identical up and down just upper end of ring-shaped valve seats internal diameter that the valve pocket inner convex platform is complementary, as shown in Figure 2.In the cross-sectional schematic of the delayed type flushing cistern water-saving valve of integral type shown in Figure 3, its structure is roughly identical with embodiment 1, and different is that valve body (1) connects together up and down, and the top is provided with lid (2).The side face of spool has the conical surface, and the valve seat that is mated is stuck on the boss in the valve pocket as shown in Figure 4.

The utility model has following advantage compared to existing technology:

1, simple in structure, dependable performance, operation are nimble.

2, flushing health needs can not only be satisfied, reasonable water-saving order can be reached again .

Claims (3)

1, a kind of delayed type flushing cistern water-saving valve, its valve body lower portion (2) is for having the short tube of arm, this valve body (1) above short tube is the perisporium of concentricity line with it and the cylinder that the upper end all is provided with through hole, on arm, be provided with and be attached thereto logical vertical bleed off pipe (7), position in valve pocket above the arm is provided with the ring-shaped valve seats (4) that is complementary with spool (3), guide pipe (6) that can be equipped with spool above it and be attached thereto and switch drag-line (5), it is characterized in that: the side face of this spool housing has the sphere or the conical surface that is complementary with valve seat, the housing lower end is provided with through hole, and the central through hole on top, upper end is connected with the guide pipe lower end that the upper end is provided with end cap (8).

2, delayed type flushing cistern water-saving valve according to claim 1 is characterized in that: outer shape is identical up and down with the ring-shaped valve seats internal diameter that the valve pocket inner convex platform is complementary, and just the wall of upper end is thinner slightly.

3, delayed type flushing cistern water-saving valve according to claim 1 and 2 is characterized in that: valve body can be to link to each other split typely up and down, also can be that the integral type of lid is arranged at the valve body top that connects together up and down.

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