CN200943239Y - Divided flush water-saving squatting pan of public toilet - Google Patents

Abstract

The utility model discloses a water-saving squat pan (77) that allows flushing in sections for public toilets. The squat pan uses a water sealing plug valve device (3) to close or open a sewage discharge outlet (11) at the bottom of the squat pan. The water sealing plug valve device (3) is communicated with a water corridor (7) at the top of a water flow switching device (2). A sectional flushing device (4) is connected with another water corridor (5) of the water flow switching device, and able to flush the squat pan by sections. The sectional flushing device uses a metal piston in the chamber to move up and push an interception gate to achieve the sectional flushing. The piston can also be made of lightweight materials, and the lifting speed of the piston can be controlled by a hydraulic cylinder. The lifting speed of the piston can also be controlled through an air discharge hole in the center of the valve core at the upper part of the chamber and by using the material with an appropriate density. The device involves no use of external force such as power, and only uses the water pressure in the pipe to achieve the sectional flushing of the squat pan, and opening and closing of the sewage discharge outlet.

Description

Divide towards the water-saving public lavatory of formula pan

Technical field the utility model relates to a kind of lavatory tool, and especially its flushometer reaches the plugging device to rushing down dirty mouthful.

Background technology is for the public lavatory, and people understand very much.No matter be the student who goes to school, the workman of factory, company each employee of stratum or go sightseeing, market shopping, the resident who lives at cottage area especially, needs at all times it.And we are seen or with what cross, nothing but with regard to those several old-fashioned pans, hang a water tank on the back abutment wall, and the rope of connection water tank plug valve is drawn in convenient back one, and one the case water makes a sheer drop for 6～7 liters.This method, because too water wasting had the people that the water spray path that it makes running water pipe is direct by a foot rest switch and pan top into is joined afterwards, the hydraulic pressure of water pipe washes.The regional hydraulic pressure that has is lower, a large water tank just is set is communicated with each pan, steps on foot rest after the convenience, lifts pedal after washing down.The somebody is joined its switch and an induction installation, automatically flushing after people are convenient, and this several change, mostly design is the switch of bath, no matter flushing in the pan is man or woman, have a bowel movement or go to the lavatory all around bath or two, front and back dash together.And not dirty rear portion, the especially women of reaching in our convenient sometimes back.A well-known normal people of health has a bowel movement once a day, generally wants 4～6 times and go to the lavatory.For the public place, people go to the public lavatory mostly just to go to the lavatory, and this problem for women's lavatory is just more apparent outstanding.The women goes to the lavatory and mostly only touches the front portion, can dirtyly not reach the rear portion.And our now all public lavatorys dash around all the sort of or two dashes together, and the water yield of its once flushing is generally all at 2～4 liters, and what have is then more.Beijing begins the old-fashioned public lavatory in each street is transformed recently, and the pan flushometer of being adorned dashes still.

At patent retrieval locate line water saving device for latrine, have only one to announce on December 9th, 92, its publication number is CN2124270, this invention is just introduced syphon with the current of water tank when current are tiny, make it to form siphon, it let alone now for the current size, has been not a problem to not what effect of water saving.Beijing news was reported on June 8th, 06, Olympic Commission for Science ﹠ Technology has been held a high-tech lavatory tool exhibition, wherein introduced 1 year recirculated water lavatory tool with one ton of water, the microbial ecological lavatory tool that need not clear in addition, and employing biodegradation technique, just with a heavy special chemical pretreatment solution, after people were convenient, it will be converted into middle water automatically.One more injects 500 premium on currency, need not change in two months, and its biological cycle need only 3 hours etc.These high-tech lavatory tools are fine beyond doubt, but these high-tech lavatory tools mostly involve great expense, with it in the whole city so that the whole nation popularize, be unpractical.The provisional movable lavatory tool that it is just used at some large-scale activities or ashram.

Utility model content the technical problems to be solved in the utility model is: provide a kind of can be to the device of sectional flushing before and after in the pan, it is being washed pan is anterior, just can finish flushing when the rear portion does not need to wash, thereby save when not needing to wash and washing the waste that is brought with the front portion while at the rear portion.

For addressing the above problem, what the utility model at first needed to solve is because this device water supply volume is little, in the syphon of pan bottom, can not form siphon, so at first removed syphon, make it into and become dirty mouthful of rushing down of bell mouth shape from the pan bottom downwards backward, dirt can directly be drained, and will make into along the water spray path in one week of pan top with the pan top edge before and after shape identical, two sections relative water spray paths of forming, each self-enclosed front and back.And a water shutoff plug valve device is fixed on the pan bottom rushes down on the sealed wall in dirty road.The plug valve that makes this device carries out shutoff or unlatching for dirty mouthful to rushing down of pan bottom, and what control its shutoff or unlatching is an available external force control, the rotating current conversion equipment of inner bag.This device has a shell, and there is a delivery port at the shell rear portion, and two water outlet paths are arranged side by side at top, and one of them is to join with foregoing water shutoff plug valve device, and another joins with dividing flushing device.This shell has an inner bag, an end of inner bag have one with the drive link of inner bag one, stretch out the guide hole in the middle of the shell shutoff.Two delivery ports are arranged at inner bag top, are positioned on the straight line one in front and one in back, and its position, left and right sides is corresponding with shell upper two water outlet paths side by side.The delivery port back that its inner bag top is relative with the path of leading to water shutoff plug valve device, have one for inner bag inside totally enclosed rush down push back stream the path.Described water shutoff plug valve device is that the current that have the inner bag delivery port relative with it to pour into by the path push its inner spool, promotes valve rod by spool and pushes plug valve and come that dirty mouth is rushed down in the pan bottom and carry out shutoff.When pan is washed, have from minute flushing device and push one current of returning, inject in its cavity forward chamber, push spool backward and drive valve rod and plug valve and come that dirty mouth opens to rushing down.And the flushing before and after the pan is finished by a branch flushing device.

This minute, flushing device top was a cutout fuse-box, and relative by water inlet box plate and water outlet box plate, the centre is made up of cutout flashboard and connecting rod.The delivery port of its water outlet box plate, water spray path by a path and pan front portion joins, the water inlet of water inlet box plate, join by a path and current conversion equipment, a threeway is arranged on this path, another delivery port of this threeway is the bottom of leading to a cavity of cutout fuse-box bottom, and there is a delivery port at the middle part of this cavity, joins by a path and water spray path, pan rear portion.A piston is arranged in the cavity, and this piston is made of metal, and its height is greater than the diameter of cavity middle part delivery port, and this piston is to press down the current of pouring in the cavity with own wt, and under the situation of deadweight less than hydraulic pressure, moves in the meeting slowly.Push on the cutout flashboard of cutout in the fuse-box by the cutout shutter and to move, cut off the current that lead to the pan front portion, finish flushing, and make piston base expose the delivery port that water spray path, pan rear portion is led at the cavity middle part the front portion.Can wash the pan rear portion if desired.

Divide flushing device to be, cavity inner bottom part in cutout fuse-box bottom is placed a hydraulic cylinder, one spool is arranged in the hydraulic cylinder, a stage clip is arranged at spool top, this spool connects a valve rod by a cross suspension bracket, and the other end of valve rod stretches out from the guide hole on hydraulic cylinder top, joins with a piston, be a water inlet between piston and the hydraulic cylinder, this water inlet joins by a path and current conversion equipment.This piston be with lightweight, water-fast, can make by accurately machined material.When it poured into pushing of current being subjected to, the speed that moves speed on it was to be subjected to the middle flow control valve control of hydraulic cylinder inner spool.

Dividing flushing device can also be a cavity, and there are two water outlet paths the side, middle part of this cavity, and one joins with the anterior water spray of pan path, and one joins with water spray path, pan rear portion.Inside cavity has a piston, and this piston must be suitable with weight, water-fast, can accurately machined material make.A piston bottom and a connecting rod join, and the other end of connecting rod joins by a cross suspension bracket and a cylinder, and the top of cavity has a valve to sit, and the bottom that valve is sat is sealing for inside cavity.Have in the middle of valve is sat one can be up and down spool, steam vent is arranged in the middle of the spool, between valve seat and its bottom is an airway, air in the cavity is external by steam vent and this airway discharge side in the middle of the spool, when piston falls after rise in cavity, air outside can be poured into this path, with spool jack-up, air is poured in the cavity from the position that valve is sat, cover in top that valve is sat with a multijaw covers spool, in order to avoid it slides out, seal with shutoff at the top of cavity, simultaneously the cover of also valve being taken the limit kills on the position at its place.

The technical scheme water supply volume that the utility model adopted is very little.It is no more than 0.5 premium on currency at most to the flushing of front portion, and can not surpass a premium on currency under the normal situation of front and back twice flushing addition.No matter so just overcome being man or woman of existing public lavatory flushometer, have a bowel movement or go to the lavatory and dash around all being or the rear and front end dashes the waste that is caused together, because this bath water yield once is generally at 2～4 liters, what have is then more.With regard to a public lavatory by the Liuli Lane, Xuanwu District, Beijing City, it also is that Beijing is to one among the transformation of old public lavatory.06 year July 7, the Japanese did an experiment in this public lavatory man-hour near finishing, Coke bottle with one two liters, remove the bottleneck upper end, putting it to the pan bottom rushes down in the dirty road, with adhesive tape bottleneck and pan bottom are sealed, step on foot rest moment and lift this moment, current from around ejection, continuing overflow behind the full Coke bottle of stream has more than one liter.So as can be known, water yield of this flushometer is minimum at 3 liters, that is to say no matter everyone has a bowel movement at every turn to go to the lavatory, and water supply volume is minimum all more than 3 liters.A women is just by 5 convenience every day, comprising once having a bowel movement, she installs available 3 liters as adopting this at one day water supply volume, and needing 15 premium on currency with the flushometer in existing public lavatory, the waste of so full Beijing and even each big and medium-sized cities, the whole nation our water resource with regard to women's lavatory can't be estimated.And concerning environmental sanitation department annual or every month to the clearing of public lavatory ight soil, increase how many train numbers and artificial, the spending of this part is necessarily very surprising.Equally, to original just very nervous urban traffic, also increased very big load.Adopt device of the present utility model, the men's lavatory women's lavatory can be saved 70% water resource altogether, also can give relative department to the water works, environmental sanitation department, and the expenditure of the traffic in city and country alleviates very big burden.

Three devices of the present utility model are very easy to assembling as three pipe fittings when pan is installed, and stable performance, as long as the material selection to each parts is correct when making, its each device also is very durable.

Description of drawings elaborates to the utility model below in conjunction with accompanying drawing.

Fig. 1 is the sectional view of the utility model pan each device under dormant state.

Sectional view of each device when Fig. 2 is the anterior flushing of this pan.

Sectional view of each device when Fig. 3 is the flushing of this pan rear portion.

Fig. 4 is the sectional view of the utility model current conversion equipment shell.

Fig. 5 is the sectional view of current conversion equipment inner bag.

Fig. 6 is the sectional view of the utility model water shutoff plug valve device.

Fig. 7 is the sectional drawing along A-A among Fig. 6.

Fig. 8 is the decomposition diagram of each parts of the utility model cutout fuse-box.

Fig. 9 is the sectional view of another embodiment of the branch flushing device of pan shown in Fig. 1-3.

Figure 10 shown in being is the sectional view that pan divides the 3rd kind of embodiment of flushing device.

Specific embodiment Fig. 1 Fig. 2 Fig. 3 has shown first kind of embodiment of the present utility model.Reference numeral (2) is a current conversion equipment, so-called current conversion is meant the rotation by its inner bag (17), the position of each delivery port at intake-outlet on the inner bag and shell upper and rear portion is changed, thereby the whereabouts of current is changed, and is exactly the effect of playing a switch for each delivery port of its shell (20).This device has a shell (20), there is a delivery port (80) at the shell rear portion, this delivery port connects a path (39), the delivery port in this path (34) puts in and rushes down lining, dirty road (46), as Fig. 1,2, shown in 3, shell upper has two water outlet paths (7) and (5) side by side, wherein water outlet path (7) are connected with water shutoff plug valve device (3), water outlet path (5) is connected with dividing flushing device (4), and its outer casing inner wall has projection (18) with adjacent edge, water outlet path (5), the diameter isometric (as shown in Figure 4) in this projection and shell upper water outlet path.It plays the effect of location to inner bag, this end joins with path, water source (8), enclosure is equipped with inner bag (17), one end of inner bag and inner bag one a drive link (14) arranged, stretch out the guide hole (15) in the middle of shell shutoff (16), can connect automatically controlled or manual equal power device uses, be illustrated with foot rest (13) at this, the other end of inner bag has a breach (19), the position is relative with the projection (18) at outer casing inner wall edge, two delivery ports are arranged at the top of inner bag, the position is point-blank, (6) one backs (10) before one, position, the left and right sides is corresponding with shell upper two water outlet paths side by side, there is one to push back stream path (12) for totally enclosed the rushing down in inner bag inside in the back of inner bag delivery port (6), the forward edge of the forward edge of this path water inlet (35) and inner bag delivery port (10) is on parallel lines (as shown in Figure 5), the delivery port in this path (36) and water inlet (35) center towards becoming 100 degree angles, that is to say and when pan washes, step on foot rest (13), inner bag is rotated forward, closed inner bag delivery port (6), connected simultaneously inner bag delivery port (10) with shell water outlet path (5) and the passage that rushes down the water inlet (35) that pushes back the stream path and shell water outlet path (7) (as Fig. 2, shown in 3), also the delivery port (80) with the shell back is just in time relative and rush down the delivery port (36) that pushes back the stream path.

Shown in Figure 1 is the sectional view of each device of pan (77) under dormant state.Reference numeral (3) is a water shutoff plug valve device, this device has a cavity (31), the inside cavity front end has individual valve to sit (30) (shown in Figure 7 as Fig. 6), sitting what be close to valve is O-ring seal (29), it is a chamber (22) that valve is sat the rear portion, a path (21) is arranged at chamber top, this path and b path join, the other end in b path joins with the f path of dividing flushing device (4) bottom, the front end of water shutoff plug valve cavity (31) has shutoff (33) sealing of guide hole (32) with the centre, the inboard of shutoff outer has a circle to extend (25), there is thread in the outside of this extension, this extension is passed from sealed wall (54) that rushes down dirty road (46) and the hole of rushing down dirty mouthful (11) relative side, at the inwall that rushes down dirty road (46) with nut (53) with it on locked sealed wall (54) that is rushing down dirty road, the center of this water shutoff plug valve device should with the center of rushing down dirty mouthful (11) point-blank, water shutoff plug valve inside cavity has a spool (28), valve rod (45) passes the hole (40) in the middle of spool, lock with nut (26), stretch out the guide hole (32) of the other end of valve rod in the middle of shutoff (33), also from the guide hole (57) of valve gap (24), pass simultaneously, stage clip supporting plate (42) with nut (55) locking is arranged on its top, stage clip (43) and stage clip supporting plate edge crouch in the chamber (56) in the middle of the plug valve (44), (24) one weeks of valve gap seal with screw (60), this stage clip is carrying out playing cushioning effect in the shutoff process to rushing down dirty mouthful (11), and plug valve (44) respectively is equipped with seal gasket (58) (59) with the contact surface that rushes down dirty mouthful (11).This device is in the middle of daily, the pipe valve (1) in path, water source (8) is to be in opening for a long time, pan is being treated the time spent, current are in current conversion equipment (2) inside, and pass through inner bag (17) delivery port (6) to a path, and water shutoff plug valve cavity (31) inner spool (28) rear portion, accumulation forms hydraulic pressure, the spool in the water shutoff plug valve cavity is lived in the hydraulic pressure pushing, cause spool to be squeezed in valve inflexibly and sit on the O-ring seal (29) between (30) and the spool (28), the valve rod (45) that links to each other with spool (28) pushes stage clip (43) by stage clip supporting plate (42), stage clip makes plug valve carry out shutoff to rushing down dirty mouthful (11) to plug valve (44) the bottom application of force.

Sectional view of each device when shown in Figure 2 is to the anterior flushing of pan.Reference numeral (4) is a branch flushing device, and it is made of jointly a cutout fuse-box (79) and a cavity (64) that has piston (63).Its top (as shown in Figure 8) is relative with water outlet box plate (67) by water inlet box plate (66), the centre accompanies sealing mat (114), use screw (111) locking all around, respectively there is a floor (100) at the back of two blocks of box plates, chamber of the middle relatively formation of two box plates, in this chamber, insert stop valve plate (68), pass the guide hole (113) of shutter (69) in the middle of water shutoff dividing plate (65), the stage clip supporting plate (72) that has the thread aperture with the centre links to each other, stage clip (73) is fixed on the supporting plate with clamp (38), to stop fuse-box (79) and water shutoff dividing plate (65) is folded mutually, and the centre accompanies sealing mat (112) and the cavity (64) that is built-in with piston (63) with screw (70) locking.The delivery port (75) of this cutout fuse-box water outlet box plate (67) will be higher than the into water inlet (76) of water box plate (66), if because two mouthfuls of straight right words, cutout flashboard (68) can form hydraulic pressure on flashboard top when upwards cutting off current, make flashboard be difficult to cut off current.The water inlet box plate (66) of this fuse-box joins by its water inlet (76) and e path, water outlet box plate joins by delivery port (75) and d path, the other end in d path joins through threeway (52) and pan anterior water spray path (48), the cavity (64) that links to each other with cutout fuse-box bottom, there is a delivery port (78) at its middle part, this delivery port and h path join, the other end in h path communicates with water spray path, pan rear portion (47) through threeway (51), the bottom of cavity is connected with f path and b path, there is one to use metal piston in the cavity, its height must be greater than the diameter of its cavity upper water-out mouth (78), and the inner bag of stepping on foot rest (13) drive current conversion equipments (17) when pan washes rotates forward.As previously mentioned, the current that inner bag delivery port (6) leads to a path have been closed, connected the passage in inner bag delivery port (10) and shell water outlet path (5) simultaneously and rushed down and pushed back stream path water inlet (35) and shell water outlet path (7), rushed down that to push back stream path delivery port (36) just in time relative with shell rear portion delivery port (80).At this moment, the current in the current conversion equipment (2) can be poured into the c path by water outlet path (5) from inner bag delivery port (10), are divided into two strands through threeway (61), and one pours in the e path, and another thigh pours in the f path.The current that pour in the f path are under minute pressure of flushing device cavity inner carrier (63), at first pour in the b path, in the b path pours in water shutoff plug valve forward chamber (22), form hydraulic pressure at this, current can be sat (30) and the middle space (101) of valve rod (45) by valve, and to pusher, spool spurs valve rod (45) with spool (28), drive plug valve (44) jointly backward, dirty mouthful (11) are rushed down in the pan bottom open.And the current at spool (28) rear portion are after being pushed, can and rush down through a path and push back the stream path, path (39) is entered in backflow, flow to by delivery port (34) and to rush down in the dirty road (46), meanwhile, the current that pour in the e path can be poured into the d path by the fuse-box of cutting off the water supply (79), enter the water spray path (48) of the anterior top of pan, through hole for water spraying (49) the pan front portion are washed.Meanwhile, divide the piston (63) in the flushing device (4) under conducting oneself with dignity, to move in the continuation less than the situation of hydraulic pressure, when on move to piston base when concordant (as shown in Figure 2) with the bottom margin of cavity delivery port (78), be exactly time during this period of time to the anterior flushing of pan, the length of this time 2～4 seconds, can be by setting the piston weight decision, this moment, liftable foot rest can finish flushing just piston falls after rise as not washing the rear portion, as washing the rear portion, can continue to slam foot rest.

Sectional view of shown in Figure 3 is when the pan rear portion is washed each device, because when moving on piston, the current that enter water shutoff plug valve forward chamber (22) through the b path have been finished rushing down the unlatching of dirty mouthful (11), this section path is without hydraulic pressure.And through the e path and the d path to the current of pan flushing, it just washes the front portion, so the hydraulic pressure in the path is still very big at this moment, piston (63) can be equally moves on slowly under less than the situation of hydraulic pressure in deadweight, top when piston, when surpassing the top edge of cavity delivery port (78), air in the piston upper chamber can be discharged from extract duct (71), piston moves on continuing, push stage clip supporting plate (72), move on cutout shutter (69) and the cutout flashboard (68), when the cutout flashboard by jack-up, when the space was arranged at flashboard bottom, the current in the cutout fuse-box (79) can be poured into cutout flashboard (68) bottom in the groove (74) on the water inlet box plate, form hydraulic pressure gradually at this, can assist piston rapidly flashboard to be pushed to top (as shown in Figure 3).Cut off the current in e path and d path, end is to the flushing of pan front portion, and piston this moment (63) bottom has been exposed the delivery port on the cavity (78), current enter the h path by delivery port, pour into water spray path (47) from the h path through threeway (51), through hole for water spraying (50) the pan rear portion is washed, flushing finishes, lift foot rest (13), foot rest under the pulling of rear portion extension spring (because this extension spring device is extremely simple, do not draw among the figure) make current conversion equipment inner bag to back rotation, breach (19) front end of inner bag one end is stuck in the front end of shell projection (18), inner bag delivery port (6) is just in time communicated with shell water outlet path (7), rush down this moment and push back stream path (12) and inner bag delivery port (10) and be in closed condition, current can be poured into a path, promote spool (28) valve rod (45) and plug valve (44) forward, and rushing down of pan bottom dirty mouthful (11) carried out shutoff (as shown in Figure 1).Because there is the buffering stage clip plug valve inside, plug valve is being cushioned when rushing down dirty mouthful of (11) shutoff, also make spool have surplus can tightly be pressed in valve forward and sit on the O-ring seal (29) on (30), the anterior current of spool this moment (28) can flow back to the b path under spool (28) pushing forward.Owing to cut off the current in c path, there has not been hydraulic pressure in each path that communicates with the c path and the plunger shaft, piston (63) can freely fall after rise under the effect of deadweight, cutout flashboard (68) is pulled away from the top and also freely falls after rise under the pulling force of stage clip (73), the current of flashboard bottom can flow back in the cutout fuse-box from groove (74), piston (63) is when falling after rise, the current of piston bottom, be stressed into h path, enter the water spray path through the h path, flowing to the pan bottom rushes down in the dirty road (41), down landing again when piston (63) base drops to cavity delivery port (78) base, the current of piston (63) bottom and pushed back the current in b path from water shutoff plug valve forward chamber (22) are understood jointly by the piston into f path of extruding, enter the e path through threeway (61), flow to the d path by the cutout fuse-box, enter water spray path (48) again, flow to the pan bottom from hole for water spraying (49) and rush down the dirty road (41), accumulation in rushing down dirty road (41) forms water seal.This moment, each device of whole pan was returned to dormant state again.

Shown in Figure 9 is the another embodiment of the utility model branch towards the water-saving public lavatory of formula pan, and it only relates to the branch flushing device.For other each devices of the present invention, each path and operating principle are identical, this embodiment is to place a hydraulic cylinder (92) in minute flushing device bottom cavity, have in its hydraulic cylinder have in the middle of this spool of a spool (96) one can be up and down flow control valve (91), spool (96) also plays the effect that valve is sat to this flow control valve, there is pod apertures (97) at the center of flow control valve, a cross suspension bracket (95) is arranged at the top of spool (96), suspension bracket connects a valve rod (94), the other end of valve rod stretches out from the guide hole (98) of hydraulic cylinder (92) shell upper, join with piston (90), in the top of hydraulic cylinder inner spool (96) stage clip (93) is arranged, piston (90) applying light, water-fast, can make by accurately machined material, that is to say, when hydraulic pressure pushes piston, can not be subjected to piston deadweight too much influence, it highly also should be greater than the diameter of delivery port (78).Between piston (90) and the hydraulic cylinder water inlet (81), from then on mouthful current that pour in push on the piston (90) and move, piston pulling valve rod (94) upwards lifts spool (96) by cross suspension bracket (95), flow control valve (91) crouches in the middle valve of spool (96) is sat, hydraulic oil flows through by pod apertures (97), the speed of moving on the piston is controlled, set the size of pod apertures (97), can determine the length of the anterior washing time of pan 2～4 seconds, when flushing finishes, spool (96) can drive piston (90) and fall after rise downwards under the pushing of stage clip (93), the hydraulic oil of spool (96) bottom is with flow control valve (91) jack-up, hydraulic oil is passed through rapidly from the position that flow control valve (91) valve is sat, accelerate the falling speed of spool (96) and piston (90), so that whole pan is returned to dormant state fast.

Shown in Figure 10 is the 3rd kind embodiment of the utility model branch towards the water-saving public lavatory of formula pan, and it equally only relates to the branch flushing device, and it is a cavity (86), and the side at the cavity middle part has two water outlet paths (37) and (89).Wherein water outlet path (37) join by h path and water spray path, pan rear portion (47), water outlet path (89) joins by d path and pan anterior water spray path (48), inside cavity has a piston (87), a piston base and a connecting rod (106) join, the other end of connecting rod joins by a cross suspension bracket (110) and a cylinder (88), this cylinder communicates up and down, the valve that has of the top of cavity and cavity one is sat (116), this valve is sat the bottom (104) together with it, seal for inside cavity, the space of only leaving between cavity (86) and the valve seat (116) (109) is the passage of exhaust.When pan is washed, current are poured into cavity by water inlet (81), pass cylinder (88) and push piston (87), current can be poured into delivery port (89) and d path simultaneously under the pressure of piston, the current of pouring into water outlet path (89) wash the pan front portion through threeway (52) by the d path, in to the front portion flushing, the current in b path also can be opened water shutoff plug valve device (3), meanwhile piston can drive following cylinder and moves on slowly jointly, the space (109) that the air on piston top can be sat by valve between (116) and the cavity (86) is passed, airway (105) discharge side by steam vent (108) in the middle of the spool (107) and spool bottom is external, and the speed that moves on the big I decision piston of setting steam vent (108), the time of moving on piston (87) drive bottom cylinder (88) is common also is the time to the anterior flushing of pan, when cylinder (88) is parallel with water outlet path (89) bottom moving on the piston, cylinder (88) has just been sealed water outlet path (89), is through with to the flushing of front portion.The base of piston this moment (87) has surpassed the top edge of water outlet path (37), and current can be poured into water outlet path (37).By the h path pan rear portion is washed.Wash the back piston that finishes and freely fall after rise, the cavity air outside can be poured into from airway (105), with spool (107) jack-up.The position that air is sat from valve is poured into cavity rapidly, makes piston (87) accelerate falling speed, so that whole pan enters dormant state as early as possible.

More than 3 kinds of schemes be sectional flushing.It concentrates on the flushing of leading portion or back segment to hydraulic pressure, the increase of dashing together than flushing or two around existing hydraulic pressure, strengthened the dynamics that pan inside is washed away, make its water supply volume few, effect is then better.In addition, this device is not used any external force such as electric power, finish automatically the sectional flushing in the pan with the hydraulic pressure in the pipeline fully, and to rushing down the shutoff or the unlatching of dirty mouth.So just, avoided because the trouble that damage brought of power failure or electric device.The above all relates to hydraulic pressure.Tap water with regard to daily family expenses, generally all be 4 to be in charge of, I did experiment, in a plunger shaft that makes into the inflator of bicycle, put into piston, a perpendicular extension bar on the piston, 12 kilograms of weights are put on the extension bar top, open the water source pipe valve, current push piston and extension bar, can be with 12 kilograms of light jack-up of weight, the water pipe that our general public lavatory is used all is 6 to be in charge of, hydraulic pressure is can be less than this pressure.Plug valve (44) inside of foregoing water shutoff plug valve device front end is provided with a buffering stage clip, reason also here, in order to avoid very stiff and demanding to components damage.As it is less to meet a little regional hydraulic pressure, and water tank can be set increases hydraulic pressure, to guarantee the operate as normal of this device.In addition three kinds of embodiments of minute flushing device are compared, what use in the 2nd kind of embodiment is the piston that light material is made, move on it speed controlled in hydraulic cylinder the size of pod apertures in the middle of the flow control valve, so it is it is subjected to the influence of hydraulic pressure size little relatively, therefore stable than first kind of embodiment work.

In sum, disclosed 3 kinds of embodiments are preferred versions of the present utility model.Its each device can have multiple conversion and remodeling, be not limited in the concrete structure of above-mentioned embodiment, as long as forward or other any directions that make things convenient for other devices to install with the dirty mouth of rushing down of pan bottom, as making semi-circular the cutout fuse-box of minute flushing device or the semiellipse type, the cutout flashboard can be made round.Delivery port (76) on the cutout fuse-box is placed on the position parallel with it with water inlet (75), does transverse movement by connecting rod and cut off current, the stack on piston cavity top (71) can directly stretch to the outside, need not be connected with water outlet path (78).Two relative paths of maybe need not spraying water of C type can be made in water spray path (50) (51), and directly one in front and one in back two water jets are relative, carry out the front and back sectional flushing.The current conversion equipment also can be made square or ellipse, does transverse movement and finishes shunting and rush down and push back stream, and water shutoff plug valve device can be made some remodeling too.For the person of ordinary skill of the art, under the prerequisite that does not break away from the principle of the invention, can also make some distortion and improvement, these also should be considered as belonging to protection domain of the present utility model.

Claims (10)

1. a branch is towards the water-saving public lavatory of formula pan; It is by an available external force control, the rotating current conversion equipment of inner bag (2), one drives water shutoff plug valve device (3) that plug valve (44) seesaws and a connection pan (77) top by spool (28), valve rod (45) and sprays water that the flushometer in path forms; Inwardly oblique below, this water spray path is evenly distributed with water spray aperture (49) (50); One end of described current conversion equipment inner bag (17) and inner bag one a drive link (14) arranged, stretch out the guide hole (15) in the middle of the plug (16) of its shell (20) one ends, in order to connect power set (13), the other end has a breach (19), the position of this breach is relative with the projection (18) together of shell (20) inner wall edge, the diameter in the water outlet path (7) (5) of this projection and shell upper is isometric, this end and water source (8) join, it is characterized in that: described pan (77) has removed the S type syphon of bottom, make into from the pan bottom it downward, become rushing down of bell mouth shape dirty mouthful (11) backward, the rear portion of described current conversion equipment (2) shell (20), a delivery port (80) is arranged, two water outlet paths are arranged side by side at top, wherein water outlet path (7) join with water shutoff plug valve device (3), and water outlet path (5) join with flushometer; Two weep holes are arranged at inner bag (17) top of described current conversion equipment (2), are positioned at preceding (6) one backs (10) on the straight line, and its position, left and right sides is corresponding with shell upper two water outlet paths (7) (5) side by side; The back of described inner bag weep hole (6) have one for inner bag inside totally enclosed rush down push back stream path (12), the forward edge of the forward edge of this path water inlet (35) and inner bag delivery port (10) is on parallel lines; The described delivery port (36) that pushes back the stream path that rushes down is corresponding with the delivery port (80) at shell (20) rear portion, this delivery port (36) and water inlet (35) center towards becoming 100 to spend angles; Described water shutoff plug valve device (3), being fixed on the pan bottom rushes down on dirty road (46) sealed wall (54), the center that dirty mouthful (11) are rushed down in its center and pan bottom point-blank, this device is that water is pressed in and promotes spool (28) in its cavity and drive valve rod (45) and plug valve (44) and seesaw rushing down of pan (77) bottom bell mouth shape dirty mouthful (11) carried out shutoff or unlatching; The water spray path on described pan top is formed by two sections paths of spraying water identical before and after preceding (48), (47) two sections each the self-enclosed shapes in back and the pan top edge are relative; Described flushometer is the branch flushing device (4) that can wash segmentation before and after the pan.

2. public lavatory as claimed in claim 1 pan, it is characterized in that: described minute flushing device (4), its top is relative by water inlet box plate (66) water outlet box plate (67), as to have cutout flashboard (68) and connecting rod (69) to be formed in a middle chamber cutout fuse-box (79); The bottom of described cutout shutter (69) connects a stage clip supporting plate (72), and there is a stage clip (73) the supporting plate top, is fixed on the supporting plate with clamp (38); A described cutout fuse-box bottom and a cavity (64) join, there is water shutoff dividing plate (65) centre, there is a delivery port (78) at the cavity middle part, through the h path and threeway (51) and pan rear portion water spray path (47) join, inside cavity has a metal piston, the height of this piston is greater than the diameter of cavity middle part delivery port (78), the bottom of cavity (64), join through f path and threeway (61), three water inlets (76) that stimulate the menstrual flow e path and cutout fuse-box (79) join, the delivery port (75) of cutout fuse-box joins with the d path, and the other end in d path joins through threeway (52) and pan anterior water spray path (48).

3. public lavatory as claimed in claim 1 pan, its minute, flushing device was made up of the cavity (64) of a cutout fuse-box (79) and bottom, it is characterized in that: this cavity bottom is placed a hydraulic cylinder (92), one spool (96) is arranged in the hydraulic cylinder, individual stage clip (93) is arranged above the spool, this spool connects a valve rod (94) by a cross suspension bracket (95), the other end of valve rod stretches out from the guide hole (98) of hydraulic cylinder (92) shell upper, with use lightweight, water-fast, the piston of can accurately machined material making (90) joins, the height of this piston should be greater than the diameter of cavity middle and upper part delivery port (78), cavity middle and upper part delivery port (78) joins with the h path, and the middle and lower part water inlet (81) of cavity communicates with b path and f path; Spool (96) in the described hydraulic cylinder, have in the middle of it one can be up and down flow control valve (91), pod apertures (97) is arranged in the middle of this valve.

4. public lavatory as claimed in claim 1 pan, it is characterized in that: described minute flushing device, it is a cavity (86), there are two water outlet paths (37) (89) at the middle part of this cavity, wherein water outlet path (37) join with the h path, the h path joins through threeway (51) and water spray path, pan rear portion (47), water outlet path (89) joins with the d path, the d path joins through threeway (52) and the anterior water outlet path of pan (48), inside cavity has a piston (87), a piston bottom and a connecting rod (106) join, the other end of connecting rod joins by a cross suspension bracket (110) and a cylinder (88), the top of cavity has a valve to sit (116), the bottom (104) that valve is sat seals for cavity (86) inside, a spool (107) in the middle of sitting, valve is arranged, there is steam vent (108) centre of spool, between valve seat and its bottom (104) is an airway (105), the cover (103) of a multijaw of usefulness covers spool (17) on valve is sat, and seals with shutoff (102) at the top of cavity.

5. as claim 2 or 3 described public lavatory pans, it is characterized in that: the cutout fuse-box (79) on its branch flushing device top has together to be extended with one groove (74) downwards from its bottom that intakes box plate (66) water inlet (76).

6. as claim 2 or 3 described public lavatory pans, it is characterized in that: flushing device had an extract duct (71) on the top of its cavity delivery port (78) in described minute.

7. public lavatory as claimed in claim 1 pan is characterized in that: described water shutoff plug valve device (3), there is a chamber (56) plug valve of this device front end (44) inside, and a buffering stage clip (43) is arranged in the chamber.

8. as claim 1,2,3 each described public lavatory pans, it is characterized in that: the cutout fuse-box (79) on described minute flushing device top, the water inlet (76) of its water inlet box plate (66) staggers up and down with the delivery port (75) of water outlet box plate (67).

9. public lavatory as claimed in claim 3 pan is characterized in that: the hydraulic cylinder of described minute flushing device cavity bottom (92) has a stage clip (93) that presses spool (96) downwards in its cylinder body.

10. as claim 1 or 7 described public lavatory pans, it is characterized in that: described water shutoff plug valve device (3), there is a chamber (22) back that the front end of its inside cavity is sat (30) at valve.

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