CN2264211Y - Return automatic toilet flusher - Google Patents

Abstract

The utility model provides a return automatic toilet flusher which comprises a water tank, a pull rod, a foot board, etc. The connecting position of a tap water pipe, a return pipe and a drainage pipe is provided with a three-cylinder conversion valve, and one end of a handle of the valve is fixed on a valve core, wherein, a hole is fixed on the return pipe by a tension spring, and the other end of the handle is connected with the foot board by the pull rod. The valve core of the three-cylinder valve is always in the state that two cylinders are simultaneously communicated in the joint of a water pipe. The return automatic toilet flusher has the advantages of reasonable design and reliable performance, and the utility model not only can save water, but also can flush a toilet in time. After a person relieves the bowels, the person does not need to clean the toilet by hands, and the utility model eliminates the propagating paths of diseases. The utility model is suitable for various public lavatories to install.

Description

The automatic flushing device for toilet of reverse-flow type

The utility model relates to the automatic flushing device for toilet in a kind of lavatory.

At present, the flushing device for toilet that the public lavatory is used, general common has two kinds: a kind of is the timing automatic washing type that discharges water, and water resource waste is serious; Another kind is the artificial touch switch washing type that discharges water, and can not guarantee that urinal is in time washed.China patent CN2035366U discloses a kind of " fully-automatic sanitary water saving flushing device ", it comprises water pipe, loam cake and lower cover, one valve rod is arranged in the water pipe, a cone plug is fixed in the upper end of valve rod, a truncated cone-shaped spool is fixed in its bottom, and loam cake and lower cover are respectively the valve seats of upper valve core and bottom spool; The spring of a supporting valve rod is housed between bottom spool and lower cover, and the lower end of valve rod and trident arch bar are hinged, and two forks in addition of trident arch bar are fixedlyed connected with an end of two foot rests respectively.The weak point that this technical scheme exists is: the 1. normally open valve spool that matches with the lower cover valve seat, behind the water pipe water-filling, because inner pipe water pressure is bigger, only depend on the last top power of spring to open spool, exist problems such as unlatching is owed flexibly, flushing pressure is not enough, work is unreliable; 2. the design of normally open valve bottom, the trident arch bar that links to each other with foot rest is reasonable inadequately, make flushing device for toilet can not with the urinal compact configuration, water easily trickles outside the pond, and developing result is not good enough.

It is a kind of reasonable in design that the purpose of this utility model is to provide, and dependable performance can using water wisely, the automatic flushing device for toilet of the reverse-flow type that urinal is in time washed again.

For achieving the above object, the technical scheme that the utility model is taked is: the automatic flushing device for toilet of this reverse-flow type comprises water tank, pull bar and foot rest, the front end of foot rest links to each other with the ground fixture, angled with ground, it is characterized in that at running water pipe, the return duct of water tank and the junction of gutter are equipped with three simple switching valves, handle one end of three switching valves is fixed on the spool, its mesopore is fixed on the water tank return duct by extension spring, the other end is connected with foot rest by pull bar, the spool of three switching valves is ball core or axle core, under the control of its handle, spool is in two states of connecting simultaneously all the time at the water pipe inter-node.

For realizing gas-water mixed type water saving developing result, above-mentioned waterbox design is the closed water tank, only is provided with the return duct interface in its bottom, is connected with return duct.

The automatic flushing device for toilet of reverse-flow type by such scheme manufactures and designs has adopted the quantitative retaining of closed water tank, and air pressure is washed by water, pressure is big, water-saving, and developing result is good; Adopt three switching valves, dependable performance, flexible, the long service life of unlatching.In addition, this automatic flushing device for toilet is simple in structure, reasonable in design, and low cost of manufacture is easy for installation, for ease of maintenaince; Need not start after an action of the bowels, make disease and venereal disease lose the section of infection.The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is the general assembly schematic diagram of the utility model on pan;

Fig. 2 is the work schematic diagrames of three switching valves when the water tank retaining;

Fig. 3 is the work schematic diagrames of three switching valves when flushing;

Fig. 4 is the general assembly schematic diagram of the utility model on water closet.

Among Fig. 1, the automatic flushing device for toilet of this reverse-flow type comprises closed water tank 1, three switching valves 2, pull bar 3, foot rest 4 etc., and three switching valves 2 are installed in the junction of the return duct 8 and the gutter 9 of running water pipe 7, water tank; Handle 5 one ends of three switching valves 2 are fixed on the spool, and its mesopore is fixed on the return duct 8 by extension spring 6, extension spring card 10, and the other end is connected with foot rest 4 by pull bar 3; Foot rest 4 and ground are processed with anti-skid design on the foot rest 4 at angle, and its front end and ground fixture are hinged.

Among Fig. 2, Fig. 3, the spool of three switching valves 2 is ball core or axle core, and under the control of its handle 5, spool is in two states of connecting simultaneously all the time at the water pipe inter-node.Promptly when depressing pedal, the handle 5 of the drop-down valve of pull bar, running water pipe 7 and return duct 8 are connected, and gutter 9 ends, and the closed water tank begins retaining, when treating that hydraulic pressure equates with tap water pressure in the water tank, stops retaining automatically; Pin when pedal, extension spring pull-up handle 5, running water pipe 7 ends, the return duct of water tank 8 is connected with gutter 9, realizes the gas-water mixed type flushing, big, the water saving of flushing pressure, reliable operation.11 is the stroke retaining of three switching valve handles among the figure.

Among Fig. 4, also this automatic flushing device for toilet can be applied on the water closet, except that above-mentioned by foot rest with the handle 5 of three switching valves 2 links to each other, the handle 5 of three switching valves 2 can also be connected rotating shaft place of toilet cover 12 by pull bar 3, can reaching equally refluxes dashes just purpose automatically.

In addition, when above-mentioned closed water tank 1 is installed in the less area of hydraulic pressure, can suitably strengthen water tank capacity or set up air vent, installation float valve to guarantee its operate as normal.

Claims (4)

1. automatic flushing device for toilet of reverse-flow type, comprise water tank (1), pull bar (3) and foot rest (4), the front end of foot rest (4) links to each other with the ground fixture, angled with ground, it is characterized in that in running water pipe (7), the return duct of water tank (8), the junction of gutter (9) is equipped with three switching valves (2), handle (5) one ends of three switching valves (2) are fixed on the spool, its mesopore is fixed on the water tank return duct (8) by extension spring (6), the other end is connected with foot rest (4) by pull bar (3), the spool of three switching valves (2) is ball core or axle core, under the control of its handle (5), spool is in two states of connecting simultaneously all the time at the inter-node of water pipe.

2. the automatic flushing device for toilet of reverse-flow type according to claim 1 is characterized in that above-mentioned water tank (1) is the closed water tank, only is provided with the interface of return duct (8) in its bottom, links to each other with return duct (8).

3. the automatic flushing device for toilet of reverse-flow type according to claim 1 is characterized in that above-mentioned water tank (1) also can be provided with air vent, is equipped with float valve in it.

4. the automatic flushing device for toilet of reverse-flow type according to claim 1 is characterized in that the handle (5) of above-mentioned three switching valves (2) also can be connected rotating shaft place of toilet cover (12) by pull bar (3).

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