CN1080799C - Flush toilet flushing device with water-saving performance - Google Patents

Abstract

A toilet tank having a trap resealing means, an overflow tube and a water control member. The resealing means includes a float slidably supported along the overflow tube for movement with changes in the water level of the tank as the tank is flushed and refilled. The reseal hose has a free end connected to the float. The hose selectively allows water to flow to the tank or overflow depending on the position of the float. There are also flushing devices that perform a short and a long flush cycle in the cistern, which devices include a drive arm driven flush valve. A cam operated by the handle is rotatably supported adjacent the drive arm. The cam is pressed against the driving arm when rotating in the first direction and rotates the driving arm to perform long-time washing, and the cam is used for short-time washing in the second direction.

Description

Flush toilet flushing device with water-saving performance

The present invention relates generally to toilet flushing devices having water saving properties, and more particularly to toilet flushing devices having a dual flush mechanism with a long and short flush that uses a single handle and a single flush valve to actuate a short or a Long two rinses. Additionally, the present invention generally relates to a toilet trap resealing device for selectively directing water from a resealing water hose to a tank overflow pipe.

In order to provide a full or long flush cycle for solid waste and only a short or partial flush cycle for liquid waste in order to conserve water when a full flush cycle is not required, various approaches have been developed over the years. Dual flush toilet mechanism. The conservation of natural resources such as water is important. A water closet that uses a relatively small amount of water to flush waste is desirable.

The features of prior art dual flush mechanisms generally fall into two categories. The first class of devices includes dual flush mechanisms employing two separate flush valves. Flush valves used for full flushes are positioned lower in the tank than flush valves used for short flush cycles. An example of the construction of this type of dual flush mechanism can be seen in Brown, US Patent No. 1,960,864. Brown's patent describes a device for flushing a toilet bowl having two flush valves in which two release lever arms of different lengths have a common fulcrum, and when the handle is turned clockwise or counterclockwise, the two release lever arms independently Rotate around the fulcrum.

The second type of dual flush mechanism is characterized by two separate handles, one for long flushes and the other for short flushes. Actuating different handles will raise the individual flush valves in the tank to different heights. For example, U.S. Patent No. 4,881,279 to Haney describes a two-handle system in which rotation of the first handle creates a regular full flush and rotation of the second handle raises the flush valve only a fraction to drive a short or partial flush . Haney's patent uses a complex system for short flush cycles.

US Patent No. 2,001,390 to Leicester uses a clutch arrangement on the stem of the flush valve to hold the flush valve in a partially raised position during short flush cycles.

Most users are accustomed to single handle toilets, and most toilets use a single flush valve as part of the toilet tank structure. Accordingly, there is a need for an improved dual flush device for a toilet tank that utilizes a single handle to actuate a single flush valve for either a short flush cycle or a long flush cycle. There is also a need for a dual flush mechanism that can be used as an improvement over conventional toilet tanks.

Another waste of water in the toilet tank is resealing the water hose. When the toilet is flushed, the tank must be refilled with clean water. Additionally, some water must be provided to the bottom of the toilet bowl or trap during tank refilling to ensure that the trap is resealed. In a conventional toilet, the resealing water hose extends from the tank's water intake control and directs water to the tank overflow pipe (which leads to the bottom of the toilet bowl or trap) throughout the time the tank is refilled. As the trap is resealed, excess water will flow into the drain, thus causing water wastage.

Additionally, dual flushing in toilet tanks complicates water flow by requiring two different ways to refill. For toilets with a double flush, the duration of the refill period after a long flush is longer than the duration of the refill cycle after a short flush, used to ensure resealing of the trap in the bottom of the toilet after a long flush The volume of resealing water is generally larger than the volume of water in the resealing trap during short flushes. This may lead to insufficient supply of trap re-sealed water during short-term flushing, which is not conducive to maintaining hygiene. On the other hand, however, during long flushes, the trap reseals are overfilled with water, wasting water that could be put to better use, for example, for flushing solid waste and for refilling the tank.

Prior art water reseal arrangements have addressed the problem of wasting water in resealed hoses and have attempted to solve it in not entirely satisfactory ways. For example, U.S. Patent No. 5,341,520 to Lazar describes a dual-capacity toilet flushing device in which the end of the resealing hose is supported on a moveable plate structure that moves when the toilet bottom is refilled. A movable plate structure selectively allows the refill hose to exit the overflow tube horizontally. US Patent No. 4,910,812 to Comparetti describes a complex toilet system in which, during part of the flush cycle, the overflow tube is pivoted out of the water outflow path of the reseal hose.

To date, however, there is no acceptable, reliable, and simple reseal water hose assembly that allows the reseal water hose to lead water to the tank during part of the flush cycle and thereafter, to allow The reseal water hose directs water to the overflow to reseal the water trap, providing equal volumes of water during long and short flush cycles.

Accordingly, it would be desirable to have an improved reseal water hose assembly that reduces unnecessary water consumption and assists in filling the toilet tank for more efficient refill cycles. In addition, it would be desirable to have a trap reseal assembly that delivers the appropriate volume of reseal water to the trap for both long and short flush cycles and that can redirect the water directly to the trap by redirecting the water from the hose. Leads to the water tank so that excess water flow from the reseal hose can be utilized.

In general, the present invention provides a dual flush device for a toilet tank having a single flush valve actuated by a pivoting drive arm for a short or a long flush cycle. The dual flush mechanism includes a cam rotatably supported on the toilet tank, positioned adjacent to the drive arm. When the cam is turned in the first direction, the cam turns the drive arm for a long flush cycle. When the cam is turned in the second direction, the cam turns the drive arm for a short flush cycle. The dual flush device also includes a lever that is rotatable relative to the drive arm between a first position in which the lever does not block the drive arm and a second position in which the cam rotates in a second direction The lever blocks the drive arm for a predetermined time to maintain the drive arm in the raised position. A float is connected to the rod to determine the predetermined time. When the cam is rotated in the second direction, the float pivots the rod to the second position.

In a preferred embodiment, the dual flushing device includes a single handle that selectively rotates the cam in a first direction or a second direction.

Another aspect of the present invention is to provide a trap resealing assembly. An annular float floats on the periphery of the pipe wall of the overflow pipe as the water level in the water tank changes in the flush toilet water tank. One end of the reseal water hose is supported on a float to selectively direct water to an overflow pipe or tank depending on the height of the float.

Therefore, one of the objects of the present invention is to provide an improved toilet flushing device with water-saving function.

Another object of the present invention is to provide an improved dual flush device for a cistern which requires only a single flush valve actuated by a single handle to perform both a short and a long flush cycle.

The third object of the present invention is to provide an improved toilet structure that can reduce unnecessary water consumption.

Another object of the present invention is to provide an improved trap resealing assembly.

A fifth object of the present invention is to provide an improved trap resealing assembly for a toilet bowl having two flush cycles, one long and one short.

A further object of the present invention is to provide an improved trap resealing assembly which reduces unnecessary water consumption and assists in filling the toilet tank for more efficient refill cycles.

A seventh object of the present invention is to provide an improved trap assembly that delivers an equal amount of reseal water to the trap regardless of the length of the flush cycle, and by modifying the amount of reseal water from the reseal soft The direction of the unnecessary water consumption of the pipes leads these waters directly to the water tank, so as to utilize this part of the water.

The eighth sub-objective of the present invention is to provide a flushing device with water-saving performance, which can be used to improve the prior art toilet tank.

Other objects and advantages of the present invention are partly obvious, and partly will be apparent from the following description.

Accordingly, the invention includes the structural features, combinations of parts and arrangements of parts which will be exemplified in the following statement, and the protection scope of the invention is set forth in the appended claims.

In order to further understand the present invention, describe the present invention below in conjunction with accompanying drawing, in the accompanying drawing:

1 is a front view of a toilet having a toilet tank, the tank shown in partial section, having a dual flush mechanism and resealing water hose assembly constructed in accordance with a preferred embodiment of the present invention;

Fig. 2 is the top view of the flush toilet and the water tank of Fig. 1 after the water tank cover is removed;

Figure 3 is a rear view of a dual flush mechanism constructed in accordance with a preferred embodiment of the present invention;

Fig. 4 is a three-dimensional exploded view of the double flushing mechanism shown in Fig. 3;

Figure 5 is a rear view of the dual flush mechanism of the present invention, showing a state prior to the initiation of a flush cycle;

Figure 6 is a rear view of the dual flush mechanism of the present invention after the handle has been rotated to initiate a long flush cycle;

Fig. 7 is a sectional view taken along line 7-7 of Fig. 6;

Figure 8 is a rear view of the dual flush mechanism of the present invention after the handle has been rotated to initiate a short flush cycle;

Figure 9 is a partial top view of the dual flush mechanism of Figure 8;

Figure 10 is a top view of a reseal water hose assembly constructed in accordance with a preferred embodiment of the present invention; and

Figures 11 to 14 illustrate the operation of the resealing water hose during short and long flush cycles in the present invention.

Referring first to Figures 1 and 2, the toilet shown generally at 20 has a toilet body 21 and a toilet tank 22 among the figures. The toilet tank 22 includes a removable tank cover 23 . Cistern 22 also includes two dual flush mechanisms, generally indicated at 30, and a trap reseal assembly, generally indicated at 50, constructed in accordance with the present invention.

A water entry control assembly 70 is provided in the water tank to control clean water to re-inject into the water tank 22 after flushing is completed. Some clean water is provided to a reseal hose 52 during refilling of the tank. The tank 22 includes an overflow pipe 24 leading to the toilet body 21 or directly to a trap below the toilet. The tank 22 also includes a flush valve, generally indicated at 60, which provides a conduit for water to flow from the tank 22 to the toilet body 21 when flushing the toilet. Flush valve 60 includes a valve seat 62 and a rotatable flush valve valve (bonnet) 64 that opens and closes the valve.

The structure of the dual flush mechanism 30 will now be further described with reference to FIGS. 3 and 4 . Also described in detail below, the double flushing mechanism 30 is driven by a handle 32 outside the water tank 22, and the handle 32 can be rotated in the counterclockwise direction shown by arrow A to perform a longer or complete flushing cycle. Turn clockwise as indicated by arrow B for a short or partial flush cycle.

Dual flush mechanism 30 includes an L-shaped pivotable drive lever or arm 34 having a first arm 35 and a second arm 36 . In a preferred embodiment, the first arm 35 is longer than the second arm 36 . The free end 35a of the arm 35 of the drive rod 34 is connected to the valve cover 64 of the flush valve 60 by a chain or other flexible connection 66 . The free end 35a of the first arm 35 may include a plurality of through holes 33 spaced therealong for attaching the chain 66 in a desired position. A further flush valve float 67 is attached to the chain 66 to hold the valve cover 64 open during the long flush cycle described in detail below.

The dual flush mechanism 30 also includes a short flush lever 80 in the form of a pivotable L-shaped quarter lever. A wing nut 87 is preferably used to detachably connect a partial flush float 84 to the short cycle flush rod 80 via a float rod 86, although other fastening means can be used.

As can be seen from the figure, the double flushing mechanism 30 is preferably mounted on the front wall of the water tank 22 . In addition, since it is necessary to consider whether it is convenient to access the handle 32 and consider not to conflict with the existing structure of the prior art water tank when installing the double flushing mechanism 30, the exact location of its installation can be changed according to specific conditions. In one embodiment as shown in FIG. 3, a through hole is formed in the front wall of the toilet tank 22 to sandwich the tank wall between a rear plate 38 and a nut or other shroud plate 40 to mount the dual flush mechanism 30 in the on the front wall. The rear plate 38 includes a through hole 38a through which a shaft 31 rotating together with the handle 32 passes. It is also contemplated, however, that the rear panel 38 could be part of the inner wall of the toilet tank.

The handle 32 is connected to the dual flushing mechanism 30 via the shaft 31 . A cam 42 having an asymmetrical first cam end 43 and a second cam end 44 is secured to the shaft 31 for rotation therewith by a screw or the like. The cam 42 can be configured into other shapes, such as a bean shape, as long as the cam 42 can contact and lift the driving rod 34 when the cam 42 rotates clockwise and counterclockwise. Of course, it should be noted that other forms of driving a single handle, such as different amounts of rotation, etc., can also be used to complete different flushing cycles.

In one embodiment, the drive rod 34 is pivotally supported by a pin 38b extending from the rear plate 38 . This mounting structure allows the drive rod 34 to rotate in a plane substantially parallel to the rear plate 38 . Arms 35 and 36 of drive rod 34 may be configured to be rigidly fastened together, or drive rod 34 may be a unitary component. In addition, the arm 35 may also be a single piece or may include a joint 78 which allows the first arm 35 to move horizontally relative to the second arm 36 so that it can be used in different configurations. A pin 79, screw or the like is mounted as part of the joint 78 to hold the two parts of the drive rod 34 together.

It should be noted that the dual flush mechanism of the present invention works best when the free end 35a of the arm 35 is at least substantially above the flush valve bonnet 64 . As will be described in more detail below, when the drive rod 34 is raised, the flush valve bonnet 64 leaves the valve seat 62 . Therefore, if the free end 35a of the arm 35 is above the flush valve bonnet 64, flushing will be performed in the most efficient manner. Due to the provision of the joint 78, the first arm 35 can be rotated about the joint 78 to position the free end of the arm 35 in a desired position to avoid interference with other parts in the tank.

The short-time flush lever 80 is rotatably connected to the sub-rear plate 38 through a joint 81 using a pin, screw or the like 85, and is in a direction perpendicular to the drive lever 34. The short flush bar 80 includes two legs 82 and 83 . Leg 83 is attached to float rod 86 . A portion of the flush float 84 is slidably connected to the float rod 86 to accommodate existing conventional toilet tanks and to allow adjustment and control of the length of short flush cycles. Due to the ability to manually change the position of the partial flush float 84 along the float rod 86, a dual flush mechanism can be used in prior art toilets.

In addition, as shown particularly in FIGS. 4 and 9, the float rod 86 can be mounted on the leg 83 in a variety of orientations. Leg 83 has a star-shaped through hole 87 through which end 86a of float rod 86 can be inserted at various positions therein. End 86a of float rod 86 may include wings 86b and 86c adapted to cooperate with bore 87 . After positioning, the float rod is fixed in position with a wing nut 87a.

As will be described below, a stop 90 is provided on the tank wall to prevent excessive rotation of the cam 75 .

Figures 3 and 5 show the situation before flushing when the tank is full, with the leg 82 of the short flush lever 80 resting on the second arm 36 of the drive lever 34 as the partial flush float 84 rises with the water level in the tank.

The operation of the dual flush mechanism of the present invention to drive a long or full flush cycle will now be described with reference to FIGS. 5-7.

A long or full flush cycle can be initiated by turning the handle 32 counterclockwise in the direction of arrow A on the front. This rotation of handle 32 causes subsequent rotation of shaft 31 which in turn causes rotation of cam 42 in the same direction. This rotation brings the long cam end 43 of the cam 42 into contact with the upper portion of the second arm 36 of the drive rod 34, thereby raising the first arm 35 which in turn pulls the chain link 66 upward to raise the flush valve valve cover 64. The float 67 is accordingly pulled up until the water W is at a lowered surface (FIG. 6). The angle at which the drive rod 34 can be turned and the limit height that the arm 35 can reach are limited by a stopper 90 on the wall. The stopper 90 in the figure is arc-shaped, but this is only an example and not limiting. The wall stop 90 may be mounted on or integrally formed with the rear panel 38 .

When the handle 32 is rotated counterclockwise in the direction of arrow A (shown in FIG. 1 ), the short cam end 44 of the cam 42 contacts the lower edge of the wall stop 90, thereby preventing further rotation of the cam 42 and handle 32. In this long or full flush condition, the flush valve cover 64 moves to its fully open or buoyant position, allowing water from the tank to drain into the toilet body to flush the toilet. When the water surface in the water tank falls, the float 67 also descends (but remains on the water surface). The drive rod 34 is also lowered to its original position. When the water level drops to a predetermined position, the flush valve bonnet 64 closes and reseals the valve seat 62 in the same manner as in the prior art, thereby terminating the full flush cycle. Then, the water tank starts to refill.

As shown in FIG. 3 , the leg 82 is pressed against the side of the arm 36 of the drive rod 34 due to the buoyancy of the partial flush float 84 when the tank is in the condition prior to a full flush. As shown in Figure 7, when the long flush cycle begins, since the short flush lever 80 is initially rotated in the direction of arrow C toward the handle 32, it appears to prevent the drive lever 34 from returning to its original position after the tank has been emptied. However, it should be appreciated that after a long flush cycle has begun, the water level in the tank begins to drop as the water in the tank flows through the flush valve into the toilet bowl. The drop of water causes part of the flush float 84 to also drop, thereby turning the flush lever 80 briefly away from the rotation of the arm 36 of the drive lever 34 before the flush valve bonnet 64 covers and reseals the valve seat 62 path. Therefore, it can be seen that the presence of the short flush lever 80 does not affect the long or full flush cycle.

Referring now to Figures 8 to 9, they illustrate the operation of the dual flush mechanism of the present invention during a short flush cycle. Turning handle 32 in the clockwise direction of arrow B (as shown in FIG. 1) initiates a partial or short flush cycle. Handle 32 rotates rotating shaft 31, and shaft 31 makes the short cam end 44 of cam 42 contact with the lower part of the second arm 36 of drive lever 34, thereby makes the first arm 35 of drive lever 34 rise to the preset position of a longer flushing. The height is a low second predetermined height.

At this time, the amount of rotation and the height are also limited by the stopper 90 on the wall. In the clockwise direction, the cam end 43 contacts the top of the wall stop 90 to prevent over-rotation of the drive rod 34 . Accordingly, flush valve bonnet 64 does not rise off valve seat 62 to the height it would during extended full flush cycle operation. In addition, since the float 67 is not raised enough to be buoyantly lifted to the surface, the flush valve bonnet 64 is only pulled open by the chain 66 and not pulled open by the buoyancy of the float as in a full flush cycle. Liter and open.

Once the drive lever 34 is raised, the buoyancy of the partial flush float 84 rotates the leg 82 of the short flush lever 80 toward the handle 32 and presses against the surface of the cam 42 as shown in FIG. 9 . When the handle 32 is released, the legs 82 of the short flush lever 80 will contact the inner surface 36a of the second arm 36 of the drive lever 34 to prevent further downward movement, keeping the first arm 35 of the drive lever 34 at an elevated position, the flush valve cover 64 remains in a partially open position allowing water to flow from the tank to the toilet bowl.

However, after the short rinse cycle starts, the water starts to drop. As the water level drops, the partial flush float 84 lowers as the water level in the tank lowers. At a predetermined water level, part of the flush float 84 has dropped a sufficient distance to rotate the short-time flush rod 80 back, so that the leg 82 is disengaged from the arm 36 of the drive rod 34, allowing the drive rod 34 to rotate and descend, allowing the flush The valve bonnet 64 closes and reseals, thereby terminating the partial or short flush cycle.

When water was injected into the water tank again in the manner of the prior art, the flushing float 84 rose in the water tank, and the legs 82 of the short-time flushing rod 80 rotated around its axis of rotation and reset, preparing for the next flushing action.

An improved dual flush mechanism that conserves water is provided by providing a dual flush mechanism that allows the user to actuate a single flush valve to initiate a full or partial flush cycle by selecting the direction of rotation of a single handle. Turning a single handle in a counter-clockwise direction actuates a full flush cycle. This rotation causes the cam to contact the drive arm, which raises the flush valve bonnet off its seat. The upward movement of the drive arm is limited by a stop.

During a partial flush cycle, the handle is turned in a clockwise direction. This rotation brings the cam into contact with the drive rod, but raises the drive rod by a relatively small amount. Similarly, the upward movement of the drive arm is limited by the stop. Releasing the handle allows the short flush lever to remain actuated with a partial lift temporarily, thereby maintaining the flush valve in an open position allowing water to flow from the tank to the toilet bowl. When the water level in the water tank drops, part of the flushing float also drops to disengage the short-time flushing rod from the drive rod. This causes the drive arm to return to its pre-flush position and the valve cover to return to the seat of the flush valve. As the tank refills, the partial flush float rises, turning the short flush lever into contact with the drive lever, ready for the next flush cycle.

Referring now to FIGS. 10 to 14 , there is shown a trap reseal assembly 50 . Assembly 50 includes a resealing water hose 52 having a free end 52a connected to a resealing float 54 . In the preferred embodiment, the reseal hose 52 is connected to the reseal float 54 by a clamp 53 or the like. The resealing float 54 is preferably annular and is slidably supported so as to float about the periphery of the overflow tube 24 wall. The overflow tube 24 may also include a stop pin 55 ( FIG. 10 ) that prevents the resealing float 54 from disengaging from the overflow tube 24 . Additionally, overflow tube 24 includes a splash guard 56 (FIG. 10) to assist in directing the flow of water from hose 52 to prevent splashing.

Referring now to Figures 11 to 14, there is shown the operation of the trap resealing assembly 50 of the present invention. Before flushing, when the tank is full, the float 54 is in the uppermost position shown in FIG. 11 . In this position, the free end 52a is in a position to introduce water into the overflow tube 54 . However, no water flows in the case before flushing since the inlet valve controlling the water is closed.

After a long or short flush cycle begins, the reseal float begins to drop with the tank level as the tank drains into the toilet bowl. The distance X shown in Figure 11 represents the distance the reseal float 54 falls during a short flush cycle, while the distance Y represents the distance dropped during a long flush cycle. Once the float 54 has dropped to the height shown in Figure 12, the reseal hose 52 is below the edge of the overflow tube 24 and the water from the reseal hose will flow into the tank.

When the tank is refilled after the valve is closed, the reseal float begins to rise. The water in the hose 52 will continue to flow into the tank until the float reaches the position shown in Figure 13, at which point the water begins to flow into the overflow tube. In particular, the location where the reseal water begins to redirect to the overflow is the same after any flush cycle, ensuring that the same amount of reseal water is used to seal the water trap. When the water continues to rise, the reseal hose 52 gets back to the top of the overflow pipe 24 again, so that the water directly flows into the overflow pipe 24 as shown in FIG. 14 . Water flows into the overflow pipe until the tank is full.

The trap resealing assembly of the present invention allows excess water from the resealing hose to be used to refill the tank. In addition, the amount of water sent to the trap through the overflow pipe is approximately equal whether it is a long flush or a short flush cycle.

The present invention provides an improved dual flush toilet system by providing a trap reseal assembly in which the reseal hose is mounted on a float that floats along the periphery of the overflow tube wall, providing The amount of resealing water used to seal the toilet trap is the same whether it is a long or a short flush cycle. It provides an improved reseal assembly by providing a trap flush assembly in which water is controlled by the position of a reseal float which is itself positioned within the tank relative to the water surface.

Claims (21)

1. double rinse device that is used for toilet flush, has two kinds of effects of length flushing, this device has a flushing valve that is driven by the actuating arm that sways can carry out short or two kinds of long flush cycle, and it comprises: an adjacent cam that is rotatably supported on the described toilet flush with described actuating arm; One can rotate the handle of described cam selectively in first direction and second direction, when described cam when described first direction rotates, cam drives described actuating arm makes described actuating arm rotation carry out described long-time flush cycle to drive described flushing valve, when described cam when described second direction is rotated, cam drives described actuating arm and described actuating arm is rotated carry out described short time flush cycle to drive described flushing valve; One bar that between the primary importance and the second place, is supported rotationally with respect to described actuating arm, described bar is when primary importance, the motion of described actuating arm is not stopped, and when the second place when described cam when described second direction is rotated, described bar contacts a scheduled time with described actuating arm, stops the motion of described actuating arm with part; And one be connected with described bar determining the float of the described scheduled time, when described cam when described second direction is rotated, described float makes described bar forward the described second place to around axle.

2. double rinse device as claimed in claim 1 is characterized in that, described actuating arm is L shaped and first and second arms are arranged, and described the first arm links to each other with described flushing valve, and described second arm is selectable contact with contacting of described cam.

3. double rinse device as claimed in claim 2 is characterized in that, described the first arm is adjustable with respect to described second arm.

4. double rinse device as claimed in claim 1 is characterized in that, described cam is a cam with asymmetric first cam end and second cam end.

5. double rinse device as claimed in claim 4 is characterized in that, described first cam end contacts with described actuating arm to carry out described long-time flush cycle, and described second cam end contacts to carry out the short time flush cycle with described actuating arm.

6. double rinse device as claimed in claim 5 also comprises preventing that described handle from making the retainer of described cam inordinate rotation.

7. double rinse device as claimed in claim 6 is characterized in that, described second cam end contacts with described retainer to stop the inordinate rotation of described cam when described first cam end contacts with described actuating arm.

8. double rinse device as claimed in claim 7 is characterized in that, described first cam end contacts with described retainer to stop the inordinate rotation of described cam when described second cam end contacts with described actuating arm.

9. double rinse device as claimed in claim 1 is characterized in that, described bar is L shaped and comprises one first leg and one second leg that described float links to each other with described second leg.

10. double rinse device as claimed in claim 9 is characterized in that, described first leg of described bar stops in the time that at described predetermined section described actuating arm turns back to its original position.

11. double rinse device as claimed in claim 10 is characterized in that described float comprises an elongate rod, described float is connected on this elongate rod, and can select the location along described elongate rod.

12. double rinse device as claimed in claim 9 is characterized in that described float comprises an elongate rod, described float is connected on this elongate rod, and described bar can link to each other with described second leg in two different orientation at least.

13. double rinse device as claimed in claim 12 is characterized in that, described second leg has a star through hole, and described bar has the end that can selectively locate in described through hole.

14. double rinse device as claimed in claim 1 is characterized in that described actuating arm comprises a free end, also comprises one at the described free end of described actuating arm and the connector between the described flushing valve.

15. double rinse device as claimed in claim 1 is characterized in that,

It also comprises a supporting member;

Described pivotable drive arm pivotally is bearing on the described supporting member;

Described cam is rotatably supported on the described supporting member;

One selectively the drive unit by stick control of described cam rotation to a primary importance and a second place;

Described bar is bearing in described supporting member.

16. double rinse device as claimed in claim 15 is characterized in that, described drive unit comprises that one can forward described cam to the axle of described first and second positions selectively.

17. double rinse device as claimed in claim 15 is characterized in that, described actuating arm comprises a joint that described actuating arm is located in described toilet flush.

18. double rinse device as claimed in claim 15 is characterized in that, described float can be selectively with respect to described bar location.

19. double rinse device as claimed in claim 15, also be included on the described supporting member, the described cam of restriction forwards the retainer of outside, described first and second positions to.

20. double rinse device as claimed in claim 19 is characterized in that, described retainer is the prodger of an arc.

21. double rinse device as claimed in claim 1 is characterized in that,

Described actuating arm comprises a first arm and one second arm;

Described bar has one first leg and one second leg;

Described float links to each other with described second leg of described bar, and it can make described bar be in the first position and the second place, and described first leg of wherein said bar props up described second arm of described actuating arm temporarily to limit its motion;

Described cam makes described cam drive described second arm in primary importance in the motion of described first direction, makes described the first arm rise to one first height so that described flushing valve discharges water in one period scheduled time;

Described cam makes described cam drive described second arm in the second place in the motion of described second direction to make described the first arm rise to one second height, and allows described described first leg of washing bar to enter into motion path the rotating with the described actuating arm of temporary transient restriction of described second arm.

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