CN2459370Y

CN2459370Y - Reverse flow type water saving automatic flusher

Info

Publication number: CN2459370Y
Application number: CN00260918U
Authority: CN
Inventors: 韩存双
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-26
Filing date: 2000-10-26
Publication date: 2001-11-14
Anticipated expiration: 2010-10-26

Abstract

The utility model relates to a reverse-flow type water-saving automatic toilet flusher. A three-way switch valve is arranged on the binding site of a running water pipe, a closed water tank and a drainage pipe. The top end of a valve core rod of the three-way switch valve is provided with a plunger, and the middle part of the valve-core rod is provided with a draining valve cover, and the bottom end of the valve-core rod is connected with one end of a handle. The other end of the handle is connected with a pedal plate or a rotating shaft on an upper cover of a toilet seat by a draw rod (line), and the middle part of the handle is provided with a rotating shaft. The three-way switch valve is in the two-way state at all times under the control of the handle. The toilet flusher has the advantages of easy machining and reliable performance by using the three-way switch valve of the valve-core rod, and also has the advantages of mixed toilet flushing of water and air, water saving and good flushing effect. The utility model is suitable for various comfort stations and family toilets, and can effectively prevent the crossed propagation of diseases.

Description

The reverse-flow type automatic flushing device for toilet of economizing on water

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, because of people fear communicate illness, so can not guarantee consciously that urinal is in time washed.The applicant once developed " the automatic flushing device for toilet of reverse-flow type " in 1996, and had applied for patent.In the former patented technology, the spool of critical component three-way change-over valve is ball core valve (or core valve) slightly, and the pull bar by foot rest or toilet cover rotating shaft place drives valve core rotation, with the unlatching that realizes three-way change-over valve or close.The technical requirements height of these two kinds of valves, particularly break-in technology content is big, progress is slow, the incompatible production in enormous quantities in enormous quantities, when machining accuracy is not high, also drainage can occur.In addition, extension spring exposes, and is fragile and influence attractive in appearance.

The purpose of this utility model is to provide that a kind of design is more reasonable, more reliable performance, be easy to processing, can using water wisely, and the reverse-flow type that urinal is in time the washed automatic flushing device for toilet of economizing on water again.

For achieving the above object, the technical scheme that the utility model is taked is: this reverse-flow type automatic flushing device for toilet of economizing on water comprises water tank, pull bar (line), foot rest or toilet cover, the front end of foot rest links to each other with the ground fixture, it is angled with ground that the rear end is liftoff, it is characterized in that three-way change-over valve being installed at the return duct of running water pipe, water tank and the junction of gutter, the valve core masthead end of three-way change-over valve is equipped with piston, piston cooperates with the piston seat of water inlet pipe inwall, the break-make of control water inlet pipe and water tank return duct; The draining valve gap is equipped with at valve core bar middle part, the break-make of draining valve gap control water tank return duct and gutter; Valve core bar bottom is stretched out outside the valve and is connected with an end of handle, the other end of handle is connected with foot rest or toilet cover rotating shaft place by the backguy in pull bar or the sleeve pipe, the middle part of handle is rotating shaft, and three-way change-over valve is in two logical states all the time at the inter-node of pipeline under the control of its handle.

Secondary spring is equipped with at the above-mentioned place, valve core bar bottom that is connected with handle.Described water tank is the quantitative retaining water tank of closed.

The reverse-flow type that above-mentioned the utility model the provides automatic flushing device for toilet of economizing on water adopts the valve core rod three-way change-over valve, makes easy, be easy to processing, open flexible, close freely, dependable performance, long service life, easy for installation, for ease of maintenaince; Adopt the quantitative retaining of closed water tank, gas-water mixed type dashes just, and pressure is big, water-saving, developing result are good.This automatic flushing device for toilet is applicable between all kinds of public lavatories and domestic hygiene that the intersection that can ward off disease is effectively propagated.

The utility model is described in further detail below in conjunction with accompanying drawing:

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

Fig. 2 is the lateral view of Figure 1A part;

Fig. 3 is the work schematic diagram of valve core bar three-way change-over valve when the water tank retaining;

Fig. 4 is the work schematic diagram of valve core bar three-way change-over valve when water tank discharges water flushing;

Fig. 5 gives the structural representation that buries the release pull box for what the pan foot rest was divided into;

Fig. 6 is the structural representation of the flexible strain plate in Fig. 5 release pull box;

Fig. 7 is the schematic diagram that adopts the rod-pulling type installation form with toilet cover;

Fig. 8 is the schematic diagram that adopts release pull box installation form with toilet cover;

Fig. 9 is the structural representation of release pull box among Fig. 8.

The application of automatic flushing device for toilet on pan of economizing on water of Fig. 1, this reverse-flow type shown in Figure 2.It comprises the quantitative water tank 1 of closed, three-way change-over valve 2 and handle 3, pull bar or backguy with well 4, foot rest 5 etc.Three-way change-over valve 2 is installed in the junction of the return duct 7 and the gutter 8 of running water pipe 6, water tank, and the handle 3 of three-way change-over valve is connected with flexible strain plate 9 (see figure 2)s of foot rest 5 belows by the backguy 4 in the sleeve pipe.The front end of foot rest 5 links to each other with the ground fixture, and the rear end is liftoff to be positioned at the top of stretching strain plate 9.This type of attachment of above-mentioned flexible strain plate relatively is fit to the transformation of the way of existing communal toilet.

Fig. 3, shown in Figure 4, piston 11 is equipped with on valve core bar 10 tops of three-way change-over valve 2, and piston 11 cooperates with the piston seat 12 of water inlet pipe 6 inwalls, the break-make of control water inlet pipe 6 and water tank return duct 7; Draining valve gap 13 is equipped with at the middle part of valve core bar 10, draining valve gap 13 control water tank return ducts 7 and gutter 8 break-makes; Stretch out outside the valve bottom of valve core bar 10, secondary spring 14 is housed on it and is connected with an end of handle 3, and the other end of handle 3 is connected with rotating shaft place of foot rest 5 or water closet by the backguy 4 in pull bar or the sleeve pipe.Three-way change-over valve 2 is in two logical states all the time at the inter-node of water inlet pipe 6, water tank return pipe 7 and gutter 8 under the control of its handle 3.That is: as shown in Figure 3, when foot rest or toilet cover stressed, pull bar or backguy with well 4 downward pull handles 3, the rotating shaft of handle 3 in the middle of it rotated, and the other end of handle 3 upwards pushes away valve core bar 10, piston 11 leaves piston seat 12, water inlet pipe 6 is connected with the return pipe 7 of water tank, and draining valve gap 13 ends gutter 8, airtight water tank 1 beginning retaining, when treating that hydraulic pressure is equal with tap water pressure in the water tank 1, stop retaining automatically; As shown in Figure 4, when foot rest or toilet cover were no longer stressed, handle 3 was under the effect of secondary spring 14, drive valve core bar 10 and move downward, piston 11 is closed water inlet pipe 6, and draining valve gap 13 is opened, the return pipe 7 of water tank is connected with gutter 8, water tank 1 flushing that discharges water.What the handle 3 of three-way change-over valve 2 utilized is lever principle, in the actual production, can rationally adjust the length of handle and the position of rotating shaft according to the number range of human body weight and hydraulic pressure.In addition, what the utility model adopted is the quantitative water tank of closed, suitably dwindles the water inlet of three-way change-over valve 2, utilize the time can control the water retention capacity of water tank 1, can realize simultaneously the gas-water mixed type flushing, about about 2 liters with interior retaining in this water tank 30 seconds is used for flushing urine; Retaining 4-6 liter more than 1 minute is used for dashing stool, the big and water saving of pressure, and developing result is good.

As Fig. 5, shown in Figure 6, for just formula public lavatory of newly-built crouching, can directly give and bury the pan terminal box, this terminal box is provided with about 2 a centimeters foot-operated post 15 above ground level, give and be provided with strain plate 16 in the box body that is embedded in below ground, strain plate 16 is fixed on the two side of box body by fixed axis 17, fixed axis 17 is provided with back-moving spring 18, be provided with foot-operated column sleeve 19 in the box body of foot-operated post 15 belows, the upper end of foot-operated column sleeve 19 and foot-operated post 15 are by being threaded, can adjust the height of foot-operated post 15, the lower end of foot-operated column sleeve 19 is connected with strain plate 16.

Fig. 7 is applied in one of example on the water closet with this reverse-flow type automatic flushing device for toilet of economizing on water, be about to the below that three-way change-over valve 2 places water tank 1, the handle 3 usefulness pull bar forms of three-way change-over valve 2 are connected with toilet cover, by to the toilet cover application of force, can reach the automatic purpose of dashing just that refluxes equally.

What Fig. 8 was different with Fig. 7 is: this reverse-flow type economizes on water that handle 3 and the toilet cover of automatic flushing device for toilet three-way change-over valve 2 adopt is that the form of terminal box is connected.This mode is more hidden, seems better appearance in appearance, is suitable for the repacking of existing water closet.

Fig. 9 is the structural representation of release pull box among Fig. 8, this release pull box is fixed on the water closet, be provided with bi-directional expansion strain plate 20 in the box, the A pin of strain plate 20 is the sleeve pipe of backguy 4 fixedly, the B pin is backguy 4 fixedly, the upper end of bi-directional expansion strain plate 20 is provided with joint pin 21, is connected with the toilet cover rotating shaft.

Claims

1, a kind of reverse-flow type automatic flushing device for toilet of economizing on water, comprise water tank (1), backguy (4) in pull bar or the sleeve pipe, foot rest (5) or toilet cover, the front end of foot rest (5) links to each other with the ground fixture, the rear end is liftoff, make whole foot rest and ground angled, it is characterized in that in running water pipe (6), the junction of return duct of water tank (7) and gutter (8) is equipped with three-way change-over valve (2), piston (11) is equipped with on valve core bar (10) top of three-way change-over valve (2), piston (11) cooperates with the piston seat (12) of water inlet pipe inwall, the break-make of control water inlet pipe (6) and water storage box (1); Draining valve gap (13) is equipped with at the middle part of valve core bar (10), the break-make of draining valve gap (13) control water tank (1) and pan or water closet; The bottom of valve core bar (10) is stretched out outside the valve and is connected with an end of handle (3), and the other end of handle (3) is connected with foot rest (5) or toilet cover rotating shaft place by the backguy (4) in pull bar or the sleeve pipe, and the middle part of handle (3) is rotating shaft; Three-way change-over valve (2) is in two logical states all the time at the inter-node of water inlet pipe (6), water tank return pipe (7) and gutter (8) under the control of its handle (3).

2, the reverse-flow type according to claim 1 automatic flushing device for toilet of economizing on water is characterized in that secondary spring (14) is equipped with in the bottom of the above-mentioned valve core bar (10) that is connected with handle (3).

3, the reverse-flow type according to claim 1 automatic flushing device for toilet of economizing on water, what it is characterized in that above-mentioned water tank (1) adopts is the quantitative retaining water tank of closed.

4, the reverse-flow type according to claim 1 automatic flushing device for toilet of economizing on water, the handle (3) that it is characterized in that above-mentioned three-way change-over valve (2) can be fixed on foot rest (5) below by flexible strain plate, also can by backguy with well (4) with give the pan terminal box that buries and be connected.

5, the reverse-flow type according to claim 1 automatic flushing device for toilet of economizing on water is characterized in that the handle (3) of above-mentioned three-way change-over valve (2) can pass through pull bar (4), also can be connected with toilet cover rotating shaft place by the mode of water closet terminal box.

6, the reverse-flow type according to claim 4 automatic flushing device for toilet of economizing on water, terminal box is buried in giving of it is characterized in that above-mentioned pan adopts, be provided with about 2 a centimeters foot-operated post (15) above ground level, give and be provided with strain plate (16) in the box body that is embedded in below ground, strain plate (16) is installed on the two side of box body by fixed axis (17), fixed axis (17) is provided with back-moving spring (18), be provided with foot-operated column sleeve (19) in the box body of foot-operated post (15) below, the upper end of foot-operated column sleeve (19) and foot-operated post (15) are by being threaded, and the lower end of riding column sleeve (19) is connected with strain plate (16).

7, the reverse-flow type according to claim 5 automatic flushing device for toilet of economizing on water, it is characterized in that the terminal box that rotating shaft place of above-mentioned toilet cover is fixing, be provided with bi-directional expansion strain plate (20) in the box, the sleeve pipe of its fixedly backguy of A pin (4), fixedly backguy of B pin (4), the upper end of bi-directional expansion strain plate (20) is provided with joint pin (21), is connected with the toilet cover rotating shaft.