CN210032000U - Flushing system of low-water-tank closestool - Google Patents

Abstract

The utility model discloses a flushing system of low water tank closestool, include: the water distributor comprises a water inlet valve, an ejector communicated with the water outlet of the water inlet valve and a water distribution box communicated with the water outlet of the ejector; the highest position of the water distribution box is higher than the pan surface of the closestool, and the water distribution box is provided with a first water distribution pipe communicated with an auxiliary water channel of the closestool and a second water distribution pipe communicated with a washing ring water channel of the closestool. Therefore, when the closestool is flushed, water is guided into the water distribution box higher than the surface of the closestool pan by the ejector and then is sprayed into the auxiliary water channel through the first water distribution pipe to flush the bottom of a closestool of the closestool, or is sprayed into the washing ring water channel through the second water distribution pipe to flush the surface of the closestool pan of the closestool. Therefore, the drainage of the flushing water on the pan surface of the toilet bowl and the flushing water on the bottom of the toilet bowl is realized through one ejector, so that two paths of water are guided to the position higher than the pan surface of the toilet bowl, and the condition that sewage in the toilet bowl flows into the water tank is effectively prevented.

Description

Flushing system of low-water-tank closestool

Technical Field

The utility model relates to a closestool technical field especially relates to a flushing system of low water tank closestool.

Background

The flushing system of the existing low water tank closestool comprises a water inlet valve, a water discharge valve and an ejector which are positioned in a water tank, wherein the water discharge valve is communicated with an auxiliary water channel arranged on a closestool main body, the ejector is communicated with a toilet ring water channel arranged on the closestool main body, when flushing is carried out, part of water flows into the auxiliary water channel through the water discharge valve to flush the bottom of a bedpan of the closestool, and the other part of water flows into the toilet ring water channel through the ejector to flush the pan surface of the bedpan of the closestool.

Since the low tank toilet has a low tank position, the position of the drain valve located in the tank is also low. With the flushing system with the structure, when the water level in the toilet bowl of the toilet is higher than the water outlet of the water discharge valve (such as the situation occurs when the toilet is blocked), sewage flows back into the water tank.

In view of this, it is a technical problem to be solved by those skilled in the art to develop a flushing system for a low tank toilet, so as to avoid the drawback of sewage flowing back into the tank.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a low cistern toilet's scouring system, include: the water distributor comprises a water inlet valve, an ejector communicated with the water outlet of the water inlet valve and a water distribution box communicated with the water outlet of the ejector; the highest position of the water distribution box is higher than the pan surface of the closestool, and the water distribution box is provided with a first water distribution pipe communicated with an auxiliary water channel of the closestool and a second water distribution pipe communicated with a washing ring water channel of the closestool.

The flushing system further comprises a shunt valve, a first driving part and a second driving part, wherein the first driving part and the second driving part can move up and down; the shunt valve comprises a first valve plate, when the second driving part moves downwards to the right position, the first valve plate closes the first shunt pipe, and when the second driving part moves upwards to the right position, the first valve plate opens the first shunt pipe.

The flushing system as described above, the shunt valve further includes a second valve plate, when the second driving portion moves downward to a proper position, the second valve plate opens the second shunt pipe, and when the second driving portion moves upward to a proper position, the second valve plate closes the second shunt pipe.

According to the flushing system, the upper end of the first valve plate is rotatably connected to the inner wall of the first water distribution pipe so as to rotatably open and close the first water distribution pipe; the water diversion valve also comprises a first limiting piece fixedly connected with the first valve plate; the second driving portion comprises a second limiting piece, when the second driving portion moves downwards to a position, the second limiting piece and the first limiting piece are matched with each other to limit rotation of the first valve plate, and when the second driving portion moves upwards to a position, the second limiting piece and the first limiting piece are separated from being matched to remove limitation on the first valve plate.

According to the flushing system, the first limiting part is provided with a long hole and an arc-shaped hole communicated with the upper end of the long hole, the circle center of the arc-shaped hole is located on the rotating axis of the first valve plate, the second limiting part is a pin shaft, and when the second driving part moves downwards to a proper position, the pin shaft is located in the long hole and is matched with the side wall of the long hole so as to limit the rotation of the first valve plate; when the second driving part moves upwards to a proper position, the pin shaft moves upwards into the arc-shaped hole along the long hole so as to remove the limitation on the first valve plate.

According to the flushing system, the first limiting part is provided with a groove, and the second limiting part is a protrusion; when the first driving part moves downwards to a proper position, the protrusion extends into the groove and is matched with the side wall of the groove to limit the rotation of the first valve plate; when the second driving part moves upwards to a certain position, the protrusion is separated from the groove so as to remove the limitation on the first valve plate.

The flushing system further comprises a first limiting part and a first resetting part, wherein the first resetting part is used for providing upward resetting force for the second driving part; the first driving part comprises a first clamping block, the first limiting part comprises a first clamping hook, and when the first driving part moves downwards to the proper position, the first clamping block is clamped below the first clamping hook so as to limit the upward resetting of the first driving part;

first spacing portion still includes first float and first connecting axle, first connecting axle is fixed at first high position, first pothook link firmly in first float and empty cover in first connecting axle, when the water level descends to a certain position, first pothook can wind under the drive of first float first connecting axle rotates to it is right to remove the injecing of first drive division.

The flushing system further comprises a switching valve and a third driving part capable of moving up and down, wherein the switching valve comprises: the first valve channel is communicated with the water outlet of the water inlet valve and a water tank of a closestool, the second valve channel is communicated with the water outlet of the water inlet valve and the ejector, and the third valve plate is used for switching and closing the first valve channel and the second valve channel; the first driving part is also used for pressing the third driving part to move downwards, when the third driving part moves downwards to a proper position, the third valve plate opens the second valve passage and closes the first valve passage, and when the third driving part moves upwards to a proper position, the third valve plate opens the first valve passage and closes the second valve passage.

According to the flushing system, the middle part of the third valve plate is riveted to the valve body of the switching valve, one end of the third valve plate is connected with the third driving part, and when the third driving part moves up and down, the third valve plate can rotate around a riveting shaft under the driving of the third driving part, so that the other end of the third valve plate can switch and close the first valve channel and the second valve channel.

The flushing system further comprises a second limiting part and a second resetting part, wherein the second resetting part is used for providing upward resetting force for the third driving part; the third driving part comprises a second clamping block, the second limiting part comprises a second clamping hook, and when the third driving part moves downwards to the right position, the second clamping block is clamped below the second clamping hook so as to limit the upward resetting of the third driving part;

the second limiting part further comprises a second floater and a second connecting shaft, the second connecting shaft is fixed at a second height position, the second clamping hook is fixedly connected to the second floater and is sleeved on the second connecting shaft in an empty mode, and when the water level drops to a certain position, the second clamping hook can rotate around the second connecting shaft under the driving of the second floater so as to release the limitation on the third driving part; wherein the second height position is lower than the first height position.

Drawings

FIG. 1 is a schematic view of a first embodiment of a low tank toilet bowl flushing system according to the present invention in an applied state;

FIG. 2 is a schematic view of the flush system and flush button of FIG. 1;

FIG. 3 is a schematic illustration of FIG. 2 broken into two parts;

FIG. 4 is a schematic view of FIG. 2 in a state flushing the bowl surface of the toilet;

FIG. 5 is a schematic view of FIG. 2 in a state flushing the bottom of the toilet bowl;

FIG. 6 is a schematic view of FIG. 2 in a toilet tank refill condition;

fig. 7 is a left side sectional view of a portion a corresponding to the state of fig. 4 and 5;

fig. 8 is a left side sectional view of a portion a corresponding to the state of fig. 6;

fig. 9 is a left side sectional view of a portion B corresponding to the state of fig. 4;

fig. 10 is a left side sectional view of a portion B corresponding to the state of fig. 5;

FIG. 11 is a left side cross-sectional view of a second embodiment of portion B corresponding to the condition of FIG. 4;

fig. 12 is a left side sectional view of the second embodiment of the corresponding portion B in the state of fig. 5.

The reference numerals in fig. 1 to 12 are explained as follows:

1, a water tank, 2, a flushing button, 3, a pot surface and 4, a flushing system;

11 inlet valves, 111 pontoons;

12 an ejector; 121 injection nozzles and 122 injection pipes;

13 water distribution boxes, 131 inverted U-shaped pipe sections, 1311 holes, 132 transition pipe sections, 133 first water distribution pipes, 134 second water distribution pipes and 135 installation shell barrels;

14, a shunt valve, 141, a first valve plate, 142, a second valve plate, 143, long holes, 144, arc-shaped holes, 145, pin shafts, 146, grooves and 147 protrusions;

15 switching valves, 151 third valve plate, 152 first valve way, 153 second valve way;

16 a first driving part, 161 a first longitudinal bracket, 162 a top clamping block, 163 a bottom pressing plate, 164 a side pressing arm and 165 a first clamping block;

17 second drive section, 171 second longitudinal support, 172 top tab, 173 linkage;

18 a third drive portion, 181 a longitudinal rod, 182 a second latch;

19 a first limiting part, 191 a first hook, 192 a first connecting shaft and 193 a first floater;

20 a second limiting part, 201 a second clamping hook, 202 a second connecting shaft and 203 a second floater;

21 a first reset portion, 22 a second reset portion;

23 is connected with a clamping sleeve and 24 baffle plates.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following provides a detailed description of the technical solution of the present invention with reference to the accompanying drawings.

Referring to fig. 1-12, fig. 1 is a schematic view of a low tank toilet according to a first embodiment of the present invention in an applied state; FIG. 2 is a schematic view of the flush system and flush button of FIG. 1; FIG. 3 is a schematic illustration of FIG. 2 broken into two parts; FIG. 4 is a schematic view of FIG. 2 in a state flushing the bowl surface of the toilet; FIG. 5 is a schematic view of FIG. 2 in a state flushing the toilet bowl pan a; FIG. 6 is a schematic view of FIG. 2 in a toilet tank refill condition; fig. 7 is a left side sectional view of a portion a corresponding to the state of fig. 4 and 5; fig. 8 is a left side sectional view of a portion a corresponding to the state of fig. 6; fig. 9 is a left side sectional view of a portion B corresponding to the state of fig. 4; fig. 10 is a left side sectional view of a portion B corresponding to the state of fig. 5; FIG. 11 is a left side cross-sectional view of a second embodiment of portion B corresponding to the condition of FIG. 4; fig. 12 is a left side sectional view of the second embodiment of the corresponding portion B in the state of fig. 5.

In the application state, the flushing system 4 is installed in the cistern 1 of the toilet, as shown in fig. 1. As shown in fig. 2 and 3, the flushing system 4 includes a water inlet valve 11, an ejector 12 communicating with an outlet of the water inlet valve 11, and a water diversion box 13 communicating with an outlet of the ejector 12. The water distribution box 13 is higher than the pan surface a of the toilet, and the water distribution box 13 is provided with a first water distribution pipe 133 and a second water distribution pipe 134, in an application state, the first water distribution pipe 133 is communicated with an auxiliary water channel arranged on the main body 3 of the toilet, and the second water distribution pipe 134 is communicated with a wash ring water channel arranged on the main body 3 of the toilet.

Thus, when flushing, water is guided into the water diversion box 13 higher than the pan surface a of the toilet by the ejector 12, and then is sprayed into the auxiliary water channel through the first water diversion pipe 133 to flush the bottom of the toilet pan of the toilet, or is sprayed into the toilet seat water channel through the second water diversion pipe 134 to flush the pan surface a of the toilet. Therefore, the water guide of the flushing water on the pan surface a of the toilet bowl and the flushing water on the bottom of the toilet bowl is realized through the ejector 12, so that two paths of water are guided to the position higher than the pan surface a of the toilet bowl, and the condition that the sewage in the toilet bowl flows into the water tank 1 is effectively prevented.

Specifically, as shown in fig. 3, the flushing system 4 further includes a shunt valve 14, and the shunt valve 14 includes a first valve plate 141 for opening and closing the first shunt pipe 133. Like this, when flushing, can close first minute water pipe 133 earlier, make the water in the box 13 that divides all spout second minute water pipe 134, after a period, open first minute water pipe 133 again, make the water in the box 13 that divides all spout first minute water pipe 133, wash bedpan pot face a earlier promptly and wash the bedpan bottom again, like this, compare and wash both simultaneously, the washing power is said and is bigger, wash more totally.

It should be noted that, since the secondary water channel of the toilet is lower than the toilet seat water channel, the water outlet end of the second water dividing pipe 134 is higher than the water outlet end of the first water dividing pipe 133, so that when the first water dividing pipe 133 is opened, no matter whether the second water dividing pipe 134 is opened or closed, all the water in the water dividing box 13 is basically sprayed into the first water dividing pipe 133.

In particular, as shown in fig. 2 and 3, the flushing system 4 further comprises a switching valve 15. The water inlet of the switching valve 15 is communicated with the water outlet of the water inlet valve 11 through a water inlet pipe. The switching valve 15 is provided with a first valve passage 152 and a second valve passage 153. Wherein, the first valve channel 152 is communicated with the water tank 1, when the water tank 1 needs to be supplemented with water, the water inlet valve 11 and the first valve channel 152 are opened. The second valve passage 153 is communicated with the water inlet of the ejector 12, and when the water needs to be flushed, the water inlet valve 11 and the second valve passage 153 are opened.

Specifically, as shown in fig. 2 and 3, the flushing system 4 further includes a first driving part 16, a second driving part 17, and a third driving part 18, which are all movable up and down and are respectively used for controlling the water inlet valve 11, the water diversion valve 14, and the switching valve 15. The first driving part 16 contacts with the flush button 2 of the toilet and also contacts with the float 111, the second driving part 17 and the third driving part 18 of the water inlet valve 11, so that the first driving part 16 synchronously presses the three parts to move downwards when the flush button 2 is pressed, and therefore the water inlet valve 11, the water dividing valve 14 and the switching valve 15 can be synchronously controlled, and the opening and closing time and the opening and closing state of the three valves are matched.

Specifically, as shown in fig. 3, the flushing system 4 further includes a first limiting portion 19, a second limiting portion 20, a first resetting portion 21, and a second resetting portion 22. The first limiting part 19 can limit the upward reset of the first driving part 16 when the first driving part 16 moves downwards to a certain position, and the second driving part 17 is reset upwards under the action of the first resetting part 21 when the limiting of the first limiting part 19 is released. The second position-limiting portion 20 can limit the upward reset of the third driving portion 18 when the third driving portion 18 moves downward to a certain position, and when the second position-limiting portion 20 releases the position, the third driving portion 18 is reset upward by the second reset portion 22.

It should be noted that the first limit portion 19 and the float 111 are only in contact with each other, but not connected to each other, so that when the first limit portion 19 is reset upward, the float 111 will not move upward.

In addition, since the first driving portion 16 presses the second driving portion 17 and the third driving portion 18 downward, when the first driving portion 16 is limited by the first limiting portion 19, neither the second driving portion 17 nor the third driving portion 18 can be reset upward. When the first stopper 19 is released from the stopper, the second driving unit 17 is returned upward together with the first driving unit 16 because the second driving unit 17 is not provided with a separate stopper, but the third driving unit 18 is also subjected to the stopper action of the second stopper 20 at this time, so the third driving unit 18 is not temporarily returned upward, and the third driving unit 18 is returned upward only when both the first stopper 19 and the second stopper 20 are released from the stoppers.

The concrete configuration is as follows:

when the three driving portions move downward to the proper position (i.e. are simultaneously limited by the first limiting portion 19 and the second limiting portion 20), the inlet valve 11 is opened, the first valve channel 152 of the switching valve 15 is closed, the second valve channel 153 is opened, and the first water dividing pipe 133 of the water dividing box 13 is closed. At this time, the toilet pan surface a is washed. Please refer to fig. 4, 7, 9 and 11.

When the first position-limiting portion 19 is released and the second position-limiting portion 20 is still at the position-limiting position, the inlet valve 11 is kept open, the first valve passage 152 of the switching valve 15 is kept closed, the second valve passage 153 is kept open, and the first water distribution pipe 133 of the water distribution box 13 is opened. At this point, a flush of the bowl bottom is performed. As can be appreciated in conjunction with figures 5, 7, 10 and 12,

when the first limit portion 19 and the second limit portion 20 are both released, the inlet valve 11 is kept open, the first valve passage 152 of the switching valve 15 is open, the second valve passage 153 is closed, and the first water distribution pipe 133 of the switching valve 15 may be opened or closed. At this time, water is replenished from the tank 1, and when the water level in the tank 1 reaches a certain level, the float 111 of the feed valve 11 is driven to float upward, so that the feed valve 11 is closed. Please refer to fig. 6 and 8.

Specific structures of the water inlet valve 11, the ejector 12, the water diversion box 13, the water diversion valve 14, the switching valve 15, the first driving part 16, the second driving part 17, the third driving part 18, the first limiting part 19, the second limiting part 20, the third limiting part, the first resetting part 21, the second resetting part 22, and other parts in the specific embodiment will be described in detail below.

In the embodiment, as shown in FIG. 3, the inlet valve 11 extends in the up-down direction, and the float 111 of the inlet valve 11 is disposed at an upper position. The internal structure and the opening and closing principle of the inlet valve 11 are well known to those skilled in the art and will not be described herein.

In a specific embodiment, as shown in fig. 3, the injector 12 includes an injector head 121 and an injector pipe 122. The lower end of the injection pipe 122, which is arranged obliquely relative to the horizontal plane, is communicated with the water outlet of the injection nozzle 121. The water inlet of the injection nozzle 121 is communicated with the second valve passage 153 of the switching valve 15 through the connecting clamp sleeve 23.

In the embodiment, as shown in fig. 3, the water diversion box 13 further includes an inverted U-shaped pipe section 131 and a transition pipe section 132. The lower end of one vertical section of the inverted U-shaped pipe section 131 is communicated with the higher end of the injection pipe 122, the horizontal section (namely the highest position of the water diversion box 13) is higher than the boiler surface a of the toilet, the lower end of the other vertical section is communicated with one port of the transition pipe section 132, the other port of the transition pipe section 132 is communicated with the first water diversion pipe 133, the side wall of the transition pipe section 132 is provided with a connector, and the transition pipe section 132 is communicated with the second water diversion pipe 134 through the connector. In the figure, the side wall of the horizontal section of the inverted U-shaped pipe section 131 is provided with an opening 1311, and the opening 1311 can avoid the siphon action generated in the inverted U-shaped pipe section 131.

In a specific embodiment, as shown in fig. 3, 9-12, the diversion box 13 further includes a mounting shell 135 for receiving the second driving portion 17. In the figure, the lower end of the mounting shell 135 is directly connected to the transition pipe section 132, so that the water distribution box 13 is integrally formed. In the figure, a baffle 24 is provided at the through position of the mounting shell 135 and the transition pipe section 132, and the baffle 24 can rotate to close the through position under the impact of water flow so as to prevent water from entering the mounting shell 135.

In an exemplary embodiment, as shown in fig. 9 to 12, the upper end of the first valve plate 141 of the knock out valve 14 is rotatably coupled to the inner wall of the first water distribution pipe 133 to rotatably open and close the first water distribution pipe 133. The water diversion valve 14 further includes a first limiting member fixedly connected to a plate surface of the first valve plate 141 facing the water flow side. The second driving portion 17 includes a second stopper, and is configured to: when the second driving portion 17 moves downward to a proper position, the second limiting member and the first limiting member cooperate with each other to limit the rotation of the first valve plate 141, and when the second driving portion 17 moves upward to a proper position, the second limiting member and the first limiting member disengage to release the limitation of the first valve plate 141.

In the first embodiment, as shown in fig. 9 and 10, the first limiting member is an aperture plate, and the second limiting member is a pin 145. The orifice plate is provided with an elongated hole 143 and an arc hole 144 communicated with the upper end of the elongated hole 143, and the center of the arc hole 144 is located on the rotation axis of the first valve plate 141.

In fig. 9, the first valve plate 141 closes the first water distribution pipe 133, and at this time, the pin 145 is positioned in the elongated hole 143 and engages with the sidewall of the elongated hole 143, so that the first valve plate 141 cannot rotate, thereby keeping the first water distribution pipe 133 closed.

In fig. 10, along with the upward return of the second driving portion 17, the pin 145 gradually slides upward into the arc hole 144 along the elongated hole 143, and since the center of the arc hole 144 is located on the rotation axis of the first valve plate 141, when the pin 145 is in the arc hole 144, the rotation of the first valve plate 141 is not affected, and at this time, the first valve plate 141 rotates upward under the impact of the water flow, so that the first water diversion pipe 133 is opened.

According to the structure, the first limiting part and the second limiting part can be kept in a connection relation in a mutually matched state and a disengaged state, and the running reliability of a flushing system is favorably ensured.

In the second embodiment, as shown in fig. 11 and 12, the first limiting member is a groove plate, the groove plate is provided with a groove 146 with an upward opening, and the second limiting member is a protrusion 147 extending downward. In addition, in this embodiment, a second valve plate 142 is further provided, the second valve plate 142 is connected to the second driving portion 17, in the drawing, a port on the side wall of the transition pipe section 132 of the diversion box 13 faces downward, and the second valve plate 142 can open and close the port in the process of moving up and down along with the second driving portion 17, so that the second diversion pipe 134 can be opened and closed.

In fig. 11, the first valve plate 141 closes the first water distribution pipe 133, and at this time, the protrusion 147 is positioned in the recess 146 and engaged with the sidewall of the recess 146, so that the first valve plate 141 cannot rotate, thereby keeping the first water distribution pipe 133 closed. At the same time, the second valve plate 142 is moved downward away from the connection on the side wall of the transition section 132, which opens the second water distribution pipe 134.

In fig. 12, as the second driving part 17 is returned upward, the protrusion 147 is gradually removed upward from the recess 146, and at this time, the first valve plate 141 is rotated upward by the impact of the water flow, so that the first water distribution pipe 133 is opened. Meanwhile, the second valve plate 142 is attached to the joint on the side wall of the transition pipe section 132 upward, so that the second water distribution pipe 134 is closed.

In an embodiment, as shown in fig. 7 and 8, the switching valve 15 further includes a third valve plate 151, a middle portion of the third valve plate 151 is riveted to the valve body of the switching valve 15, one end of the third valve plate 151 is connected to the third driving part 18, and the other end of the third valve plate 151 is used for blocking the water inlet of the first valve passage 152 or the water inlet of the second valve passage 153. When the third driving unit 18 moves up and down, the third valve plate 151 can be rotated about the caulking shaft by the third driving unit 18, and the other end of the third valve plate 151 is switched to close the first valve passage 152 or the second valve passage 153.

In fig. 7, the third driving unit 18 moves downward to a predetermined position, and the other end of the third valve plate 151 pivots upward about the rivet shaft to close the first valve passage 152 and open the second valve passage 153.

In fig. 8, the third driving unit 18 is returned to the upper position, and the other end of the third valve plate 151 is rotated downward about the rivet shaft, so that the first valve passage 152 is opened and the second valve passage 153 is closed.

In a specific embodiment, as shown in fig. 3, the first driving part 16 includes a first longitudinal bracket 161, the first longitudinal bracket 161 has a top clamping block 162 at an upper end thereof, a bottom pressing plate 163 at a lower end thereof, and a side pressing arm 164 and a first clamping block 165 at one side thereof. Wherein the side pressure arm 164 is in contact with the float 111 of the feed valve 11.

In a specific embodiment, as shown in fig. 3, the second driving part 17 further includes a second longitudinal support 171, a top connecting plate 172 is disposed at an upper end of the second longitudinal support 171, the top connecting plate 172 extends into the clamping groove of the top clamping block 162, and a connecting rod 173 is disposed at one side of the second longitudinal support 171. In the figure, the lower end of the connecting rod 173 extends into the water diversion box 13 and is connected with the second limiting member. The first restoring portion 21 is a spring, and the spring is sleeved on the first longitudinal support 161.

In a specific embodiment, as shown in fig. 4, the third driving portion 18 includes a longitudinal rod 181, a second latch 182 is disposed at a top end of the longitudinal rod 181, and the second latch 182 is used for both cooperating with the second limiting portion 20 and contacting with the bottom pressing plate 163 of the first driving portion 16. The second restoring portion 22 is also a spring, which is sleeved on the longitudinal rod 181.

In a specific embodiment, as shown in fig. 4, the first limiting portion 19 includes a first hook 191, and when the first driving portion 16 moves downward to a proper position, the first block 165 of the first driving portion 16 is clamped under the first hook 191, so as to limit the first driving portion 16. The first stopper 19 further includes a first float 193 and a first connecting shaft 192, the first connecting shaft 192 is fixed at a first height position, and the first hook 191 is fixedly connected to the first float 193 and is freely sleeved on the first connecting shaft 192. As shown in fig. 5, when the water level drops to a certain position, the first hook 191 is rotated about the first connecting shaft 192 by the first float 193, and the first driving part 16 is released from the restriction.

In a specific embodiment, as shown in fig. 4, the second limiting portion 20 includes a second hook 201, and when the second driving portion 17 moves downward to a proper position, the second latch 182 of the second driving portion 17 is latched under the second hook 201, so as to limit the second driving portion 17. The second driving portion 17 further includes a second float 203 and a second connecting shaft 202, the second connecting shaft 202 is fixed at a second height position, and the second hook 201 is fixedly connected to the second float 203 and is freely sleeved on the second connecting shaft 202. As shown in fig. 6, when the water level drops to a certain position, the second hook 201 is driven by the second float 203 to rotate around the second connecting shaft 202, and the limitation on the third driving part 18 is released.

The second height position is lower than the first height position. In this way, the first stopper 19 can be released from the stopper before the second stopper 20, that is, when the water level is lowered to a lower position, the first stopper 19 is released from the stopper, and when the water level is further lowered to a lower position, the second stopper 20 is released from the stopper.

The above detailed description is made on the flushing system of the low water tank toilet provided by the present invention. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. A flush system for a low tank toilet, comprising: the water distributor comprises a water inlet valve (11), an ejector (12) communicated with the water outlet of the water inlet valve (11), and a water distribution box (13) communicated with the water outlet of the ejector (12); the highest position of the water distribution box (13) is higher than the pan surface (a) of the closestool, and the water distribution box (13) is provided with a first water distribution pipe (133) communicated with an auxiliary water channel of the closestool and a second water distribution pipe (134) communicated with a washing ring water channel of the closestool.

2. A flushing system according to claim 1, characterized by further comprising a shunt valve (14), a first drive part (16) and a second drive part (17) which can move up and down, the first drive part (16) being used for pressing a float (111) of the water inlet valve (11) and the second drive part (17) to move downwards; the shunt valve (14) comprises a first valve plate (141), when the second driving part (17) moves downwards to a position, the first valve plate (141) closes the first shunt pipe (133), and when the second driving part (17) moves upwards to a position, the first valve plate (141) opens the first shunt pipe (133).

3. A flushing system according to claim 2, characterized in that the diverter valve (14) further comprises a second valve plate (142), the second valve plate (142) opening the second diverter pipe (134) when the second drive part (17) is moved downwards into position, the second valve plate (142) closing the second diverter pipe (134) when the second drive part (17) is moved upwards into position.

4. A flushing system as claimed in claim 2, characterized in that the upper end of the first valve plate (141) is rotatably connected to the inner wall of the first water distribution pipe (133) to rotatably open and close the first water distribution pipe (133); the water diversion valve (14) further comprises a first limiting piece fixedly connected to the first valve plate (141); the second driving portion (17) comprises a second limiting piece, when the second driving portion (17) moves downwards to a position, the second limiting piece and the first limiting piece are matched with each other to limit the rotation of the first valve plate (141), and when the second driving portion (17) moves upwards to a position, the second limiting piece and the first limiting piece are disengaged to release the limit of the first valve plate (141).

5. A flushing system according to claim 4, characterized in that the first retaining member is provided with an elongated hole (143) and an arc-shaped hole (144) communicating at the upper end of the elongated hole (143), the center of the arc-shaped hole (144) is located on the rotation axis of the first valve plate (141), the second retaining member is a pin (145), and when the second driving portion (17) moves downwards to the right position, the pin (145) is located in the elongated hole (143) and cooperates with the side wall of the elongated hole (143) to limit the rotation of the first valve plate (141); when the second driving part (17) moves upwards to a position, the pin shaft (145) moves upwards along the long hole (143) into the arc-shaped hole (144) so as to release the limitation of the first valve plate (141).

6. Scouring system according to claim 4, wherein the first retaining member is provided with a groove (146) and the second retaining member is a protrusion (147); when the first drive part (16) moves downwards to a position, the projection (147) extends into the groove (146) and is matched with the side wall of the groove (146) to limit the rotation of the first valve plate (141); when the second driving portion (17) moves upward to a position, the projection (147) escapes from the groove (146) to release the first valve plate (141).

7. Flushing system according to any one of claims 2-6, characterized by further comprising a first limit portion (19) and a first reset portion (21) for providing an upward reset force to the second drive portion (17); the first driving part (16) comprises a first clamping block (165), the first limiting part (19) comprises a first clamping hook (191), and when the first driving part (16) moves downwards to a proper position, the first clamping block (165) is clamped below the first clamping hook (191) to limit the upward resetting of the first driving part (16);

the first limiting part (19) further comprises a first floater (193) and a first connecting shaft (192), the first connecting shaft (192) is fixed at a first height position, the first hook (191) is fixedly connected to the first floater (193) and is sleeved on the first connecting shaft (192) in an empty mode, and when the water level drops to a certain position, the first hook (191) can rotate around the first connecting shaft (192) under the driving of the first floater (193) to release the limitation on the first driving part (16).

8. A flushing system according to claim 7, further comprising a switching valve (15), a third drive section (18) movable up and down, the switching valve (15) comprising: a first valve channel (152) for communicating the outlet of the water inlet valve (11) with a water tank of a toilet, a second valve channel (153) for communicating the outlet of the water inlet valve (11) with the ejector (12), and a third valve plate (151) for switching and closing the first valve channel (152) and the second valve channel (153); the first driving portion (16) is further used for pressing the third driving portion (18) to move downwards, when the third driving portion (18) moves downwards to a position, the third valve plate (151) opens the second valve channel (153) and closes the first valve channel (152), and when the third driving portion (18) moves upwards to a position, the third valve plate (151) opens the first valve channel (152) and closes the second valve channel (153).

9. The flushing system according to claim 8, characterized in that the middle of the third valve plate (151) is riveted to the valve body of the switching valve (15), one end of the third valve plate (151) is connected to the third driving portion (18), and when the third driving portion (18) moves up and down, the third valve plate (151) can rotate around a riveting shaft under the driving of the third driving portion (18), so that the other end of the third valve plate (151) can be switched to close the first valve channel (152) and the second valve channel (153).

10. A flushing system according to claim 8, further comprising a second limit stop portion (20) and a second reset portion (22) for providing an upward reset force to the third drive portion (18); the third driving part (18) comprises a second clamping block (182), the second limiting part (20) comprises a second clamping hook (201), and when the third driving part (18) moves downwards to a proper position, the second clamping block (182) is clamped below the second clamping hook (201) to limit the upward resetting of the third driving part (18);

the second limiting part (20) further comprises a second floater (203) and a second connecting shaft (202), the second connecting shaft (202) is fixed at a second height position, the second clamping hook (201) is fixedly connected to the second floater (203) and is sleeved on the second connecting shaft (202) in an empty mode, and when the water level drops to a certain position, the second clamping hook (201) can rotate around the second connecting shaft (202) under the driving of the second floater (203) so as to release the limitation on the third driving part (18); wherein the second height position is lower than the first height position.

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