CN217053634U

CN217053634U - Improve water tank washing unit of scouring ability and have its closestool

Info

Publication number: CN217053634U
Application number: CN202123297680.2U
Authority: CN
Inventors: 冯杨斌; 张荣誉; 王兴东
Original assignee: Xiamen R&T Plumbing Technology Co Ltd
Current assignee: Xiamen R&T Plumbing Technology Co Ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-07-26
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a water tank flushing device for improving flushing capacity, which comprises a water tank with a water storage cavity, a drain valve arranged in the water storage cavity and used for controlling the drainage of the water tank, a drain pipe for communicating the drain passage of the drain valve with the urinal of a closestool and a flushing assisting valve with a water inlet passage and a water outlet passage, wherein the water inlet passage is communicated with a water source, and the outlet end of the water outlet passage is positioned in the water storage cavity; the pressure water flow from the water outlet channel flows to the urinal through the drainage channel. The utility model has the advantages that the flushing-assisting valve is arranged, the water inlet channel of the flushing-assisting valve is communicated with a water source, and the pressure water flow flowing out from the water outlet channel of the flushing-assisting valve is discharged to the urinal of the closestool, so that the pressure water flow flowing out from the water outlet channel is used for assisting in flushing the urinal of the closestool, and the flushing effect of the water tank flushing device with a lower position of the existing water tank can be effectively improved; and the pressure water flow flowing out of the water outlet channel flows to the urinal through the drainage channel of the drainage valve, so that the hidden danger of water leakage of the water tank caused by the arrangement of the flushing assisting valve can be avoided, and the refitting cost is low.

Description

Improve water tank washing unit of washout ability and have its closestool

Technical Field

The utility model relates to a bathroom technical field especially relates to a improve water tank washing unit of scouring ability and have its closestool.

Background

In the existing flushing device for flushing the closestool, the hidden type water tank flushing device is more and more widely applied, and the specifications of the hidden type water tank are required to have diversity to be adapted to various occasions due to flexible arrangement of toilets of all types of households. Wherein, the low hidden water tank flushing device is low in installation height of the water tank and flexible in layout, and is favored by consumers. Concealed cistern is usually fitted with a water inlet valve, a water outlet valve, a drive means and cistern accessories. When water is drained, the driving device is pressed to start the drain valve, and water in the water tank rushes to a urinal of the closestool under the action of gravitational potential energy. The flushing effect of the water tank flushed by the potential energy of water mainly depends on the level of the potential energy, namely the flushing effect is good due to the high potential energy, and the flushing effect is poor due to the low potential energy.

And low hidden water tank washing device, because of its water tank mounting height is low, the water level height is low, so the potential energy of water in the water tank is low, and it is poor to erode the effect, is difficult to match most closestool on the market. Some existing hidden type water tank flushing devices increase the flushing force by enlarging a water outlet of the water tank and heightening the working water level as much as possible, but the actual improvement effect is not obvious.

SUMMERY OF THE UTILITY MODEL

The utility model provides a toilet bowl with a water tank flushing device which can improve the flushing capability.

In order to achieve the purpose, the utility model adopts the technical proposal that: a water tank flushing device capable of improving flushing capacity comprises a water tank with a water storage cavity, a drain valve, a drain passage and a flushing assisting valve, wherein the drain valve is arranged in the water storage cavity and used for controlling the water drainage of the water tank; the pressure water flow from the water outlet channel flows to the urinal through the drainage channel.

Preferably, the water storage device further comprises a through-flow pipeline, and the inlet end of the through-flow pipeline is positioned in the water storage cavity; the outlet end of the through-flow pipeline is communicated with the drainage channel, or the outlet end of the through-flow pipeline passes through the drainage channel and then is directly or indirectly communicated with the urinal; the pressure water flow from the water outlet channel flows to the urinal through the through flow pipeline.

Preferably, the through-flow pipeline is connected to the drain valve after being independently molded; or the through-flow pipeline and the drain valve are integrally formed.

Preferably, the drain valve comprises a base arranged on the water tank and a main valve attached to the base, the base is provided with the drain channel, an upper end opening of the drain channel forms a drain outlet of the drain valve, the drain valve is used for communicating or disconnecting the water storage cavity and the drain channel by opening or closing the drain outlet, and a lower end opening of the drain channel is communicated with the drain pipe;

the through-flow pipeline is arranged in the water storage cavity, and the outlet end of the through-flow pipeline is communicated with the drainage channel through the drainage outlet; or the through-flow pipeline is arranged in the water storage cavity, a side opening is formed in the side wall of the drainage channel, and the outlet end of the through-flow pipeline is communicated with the drainage channel through the side opening; or the outlet end of the through-flow pipeline sequentially penetrates through the water outlet and the lower end opening of the water drainage channel and then is directly or indirectly communicated with the urinal; or a side opening is arranged on the side wall of the drainage channel, and the outlet end of the through-flow pipeline passes through the side opening and the lower end opening of the drainage channel in sequence and then is directly or indirectly communicated with the urinal.

Preferably, the main valve comprises a second valve body and a valve core which is arranged in the second valve body and can move up and down between a rising position and a falling position, the valve core comprises a valve rod and a valve plate connected to the bottom end of the valve rod, the through-flow pipeline is integrally formed on the valve rod, and the outlet end of the through-flow pipeline is communicated with the drainage channel through the drainage port; when the valve core is positioned at the descending position, the valve plate closes the water outlet; and when the valve core is positioned at the ascending position, the valve plate opens the water outlet.

Preferably, the inlet end of the through-flow pipeline is positioned above the normal working water level of the water storage cavity, and the inlet end of the through-flow pipeline can be communicated with the water storage cavity to be used as an overflow pipeline of the water tank; or the inlet end of the through-flow pipeline is communicated with the outlet end of the water outlet channel, and the through-flow pipeline is arranged independently of the overflow pipeline of the water tank.

Preferably, when the through-flow pipeline is used as an overflow pipeline of the water tank, the through-flow pipeline further comprises a water guide pipe, and the outlet end of the water outlet channel is communicated with the inlet end of the water guide pipe;

the outlet end of the water guide pipe penetrates through the overflow pipeline and then is directly or indirectly communicated with the urinal, and an overflow gap for communicating the water storage cavity and the urinal is formed between the water guide pipe and the overflow pipeline; or the outlet end of the water guide pipe is directly communicated with the overflow pipeline.

Preferably, the drain pipe comprises a first drain pipe and a second drain pipe arranged on the seat body of the toilet, and the drain channel is communicated with the urinal through the first drain pipe and the second drain pipe in sequence;

the outlet end of the water guide pipe penetrates through the overflow pipeline and then is communicated with the first drainage pipe; or the outlet end of the water guide pipe sequentially penetrates through the overflow pipeline and the first drain pipe and then is communicated with the second drain pipe; or the outlet end of the water guide pipe passes through the overflow pipeline, the first drain pipe and the second drain pipe in sequence and then is directly communicated with the urinal.

Preferably, the outlet end of the water guide pipe is directly communicated with the overflow pipeline;

the floating mechanism comprises a first floating barrel positioned above the normal working water level of the water storage cavity, the inlet end of the overflow pipeline is controlled to be closed when the first floating barrel is positioned at a third falling position so as to disconnect the water storage cavity and the overflow pipeline, and the inlet end of the overflow pipeline is controlled to be opened when the first floating barrel is positioned at a floating position so as to communicate the water storage cavity and the overflow pipeline;

or, the overflow pipeline also comprises a one-way valve arranged at the inlet end of the overflow pipeline; when the water level of the water storage cavity is higher than the inlet end of the overflow pipeline, the one-way valve can open the inlet end of the overflow pipeline in one way under the action of the water pressure in the water storage cavity so that the water in the water storage cavity can flow out of the overflow pipeline; when the water level of the water storage cavity is not higher than the inlet end of the overflow pipeline, the one-way valve closes the inlet end of the overflow pipeline so as to prevent the water flowing out of the water outlet channel from flowing into the water storage cavity through the inlet end of the overflow pipeline.

Preferably, the flushing assisting device further comprises a starting mechanism for starting the flushing assisting valve and the drain valve, the flushing assisting valve is arranged in the water storage cavity, the water source provides pressure water to the water inlet channel, the flushing assisting valve comprises a control mechanism and a first valve body provided with the water inlet channel and the water outlet channel, and the control mechanism comprises a second floating barrel and a limiting piece, wherein the second floating barrel can move up and down between a high position and a low position, the limiting piece is movably arranged on the first valve body, and the limiting piece can move between a limiting position and a yielding position; when the limiting piece is positioned at the limiting position, the second floating barrel can be limited at a low position; when the limiting piece is located at the abdicating position, the limiting on the second floating barrel can be released, so that the second floating barrel can float upwards to the high position; when the second floating barrel is positioned at the high position, the control mechanism controls the water inlet channel to be communicated with the water outlet channel; when the second floating barrel is located at the low position, the control mechanism controls the water inlet channel and the water outlet channel to be disconnected, and the limiting piece can be reset to the limiting position from the abdicating position; the starting mechanism drives the limiting piece to move from the limiting position to the abdicating position so as to open the flushing-assisting valve;

or the flushing-assisting valve comprises a first valve body with a water storage cavity, a piston movably arranged in the water storage cavity and a driving mechanism in transmission connection with the piston, wherein the first valve body is provided with the water inlet channel and the water outlet channel which are both communicated with the water storage cavity; when the driving mechanism drives the piston to move to compress the volume of the water storage cavity, water in the water storage cavity can be discharged from the water outlet channel;

or the flushing-assisting valve is an electromagnetic valve, and the water source provides pressure water to the water inlet channel;

or the flushing assisting valve is a water suction pump, and the water source is the water in the water tank or the water outside the water tank.

Preferably, the drain valve is in linkage fit with the limiting piece, and the starting mechanism drives the limiting piece to move from the limiting position to the abdicating position through the drain valve in the process of starting the drain valve by the starting mechanism; or, in the process that the starting mechanism starts the drain valve, the starting mechanism directly drives the limiting piece to move from the limiting position to the abdicating position; or, actuating mechanism includes first actuating mechanism and the second actuating mechanism of mutually independent setting, first actuating mechanism is used for opening the drain valve, the second actuating mechanism is used for driving the locating part by the limiting position activity extremely the position of stepping down.

Preferably, the flushing-assisting valve further comprises a water stopping piece movably arranged on the first valve body and capable of moving between a water inlet position and a water stopping position, the water stopping piece and the first valve body are matched to enclose a back pressure cavity, a through-flow channel for communicating the water inlet channel and the back pressure cavity is arranged between the water inlet channel and the back pressure cavity, and a pressure relief hole is formed in the cavity wall of the back pressure cavity; when the water stop piece is positioned at the water inlet position, the water inlet channel is communicated with the water outlet channel; when the water stopping piece is positioned at the water stopping position, the water stopping piece disconnects the water inlet channel and the water outlet channel; when the second floating barrel is positioned at the high position, the control mechanism opens the pressure relief hole to control the water stop piece to move to the water inlet position; when the second floating bucket is located at the low position, the control mechanism closes the pressure relief hole to control the water stop piece to move to the water stop position.

Preferably, the control mechanism further comprises a movable member movably arranged on the first valve body and matched with the pressure relief hole in an opening and closing manner, and the second floating barrel is matched with the movable member in a linkage manner; when the second floating barrel rises to the high position, the movable piece is linked to open the pressure relief hole; when the second floating barrel is located at the low position, the movable piece closes the pressure relief hole.

Preferably, when the second floating bucket is located at the low position, the movable piece can reset to a position for closing the pressure relief hole under the action of the gravity of the movable piece; or a first elastic piece is arranged between the moving piece and the first valve body, and when the second floating barrel is positioned at the low position, the moving piece can reset to a position for closing the pressure relief hole under the action of the first elastic piece; or the moving part is provided with a third balancing weight, and when the second floating barrel is positioned at the low position, the moving part can reset to the position for closing the pressure relief hole under the action of the third balancing weight; or, be equipped with the magnetic structure that attracts mutually or the magnetic structure that repels between the moving part and the first valve body, the second keg float is located during the low level, the moving part can be in the magnetic force of magnetic structure restores to the throne under to close the position of pressure release hole.

Preferably, the low position comprises a first falling position and a second falling position, and the height of the first falling position is higher than that of the second falling position; after the water tank finishes draining, the second floating barrel falls to the second falling position along with the water level of the water tank; in the water inlet process of the water tank, the second floating barrel rises along with the water level of the water tank and is limited at the first falling position by the limiting piece at the limiting position; when the second floating barrel is located at the first falling position, under the action of the self gravity of the moving part, the elastic force of the first elastic part, the magnetic force of the magnetic structure or the gravity of the third balancing weight, the moving part tightly abuts against the first valve body and closes the pressure relief hole; when the second floating barrel is located at the second falling position, the moving member tightly abuts against the first valve body and closes the pressure relief hole under the combined action of the self gravity of the moving member or the elastic force of the first elastic member or the magnetic force of the magnetic structure or the gravity of the third balancing weight and the gravity of the second floating barrel.

Preferably, the movable part is a swing rod which is rotatably arranged on the first valve body;

one end of the swing rod is in linkage fit with the second floating barrel, the other end of the swing rod is in open-close fit with the pressure relief hole, and the middle of the swing rod is rotatably connected with the first valve body; or one end of the swing rod is in linkage fit with the second floating barrel, the other end of the swing rod is rotatably connected with the first valve body, and the middle of the swing rod is matched with the pressure relief hole in an opening and closing mode.

Preferably, the drain valve includes a base provided on the water tank and a main valve attached to the base, the base is provided with the drain passage, an upper end opening of the drain passage forms a drain port of the drain valve, the drain valve communicates or disconnects the water storage chamber and the drain passage by opening or closing the drain port, the main valve includes a second valve body, a valve element provided on the second valve body and capable of moving up and down between a raised position and a lowered position, and the valve element is provided with an abutting portion; the valve core can close the water outlet when positioned at the descending position; the valve core can open the water outlet when positioned at the lifting position; in the process that the starting mechanism drives the valve core to ascend from the descending position to the ascending position, the valve core can drive the limiting part to move from the limiting position to the yielding position through the butt joint and the abutting fit of the abutting part and the limiting part.

Preferably, the abutting part is rotatably provided on the valve element and can rotate between a first position and a second position; when the abutting part is located at the first position, the valve core can drive the limiting part to move from the limiting position to the abdicating position through the abutting fit of the abutting part and the limiting part; after the valve core drives the limiting piece to move from the limiting position to the yielding position, the abutting part and the limiting piece lose abutting fit; in the process that the valve core is reset from the ascending position to the descending position, the abutting part abuts against the limiting piece and rotates from the first position to the second position so as to give way to the limiting piece, and the valve core can continuously descend; when the valve core is reset to the descending position, the abutting part can be reset to the first position from the second position;

the abutment is capable of returning from the second position to the first position under its own weight; or a third elastic piece is arranged between the abutting part and the valve core, and the abutting part can be reset to the first position from the second position under the action of the third elastic piece; or the abutting part is provided with a second balancing weight and can be reset to the first position from the second position under the action of the second balancing weight.

Preferably, the starting mechanism comprises a key which can be in butt fit with the limiting part, and the key is pressed to open the drain valve in the process, and the key is in butt fit with the limiting part to drive the limiting part to move from the limiting position to the yielding position.

Preferably, the limiting part can be reset to the limiting position from the abdicating position under the action of the gravity of the limiting part; or a second elastic piece is arranged between the limiting piece and the first valve body, and the limiting piece can be reset to the limiting position from the abdicating position under the action of the second elastic piece; or the limiting part is provided with a first balancing weight, and the limiting part can be reset to the limiting position from the abdicating position under the action of the first balancing weight.

Preferably, the limiting member is rotatably or slidably disposed on the first valve body.

Preferably, the driving mechanism is an electric driving mechanism; or the driving mechanism is in linkage fit with the drain valve, and the piston is driven to move by the driving mechanism to compress the volume of the water storage cavity when the drain valve opens the drain port; or the driving mechanism is in linkage fit with a starting mechanism for starting the drain valve, and the starting mechanism drives the piston to move to compress the volume of the water storage cavity in the process of starting the drain valve.

Preferably, a water inlet valve is arranged in the water storage cavity, a water inlet of the water inlet valve is communicated with the water source, and a water outlet of the water inlet valve is communicated with the water inlet channel through a water replenishing pipe so as to replenish water to the water storage cavity.

Preferably, the outlet of the water inlet channel and the inlet of the water outlet channel are both arranged at the top of the water storage cavity.

Preferably, the flushing-assisting valve is arranged in the water storage cavity, and the flushing-assisting valve is connected with the drain valve in an assembling mode.

Furthermore, the utility model also provides a closestool, including the pedestal that is equipped with the urinal and above-mentioned arbitrary the improvement flushing device of water tank of scouring ability.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model has the advantages that the flushing assisting valve is arranged, the water inlet channel of the flushing assisting valve is communicated with a water source, and the pressure water flow flowing out of the water outlet channel of the flushing assisting valve is discharged to the urinal of the closestool, so that the pressure water flow flowing out of the water outlet channel is used for assisting in flushing the urinal of the closestool, and the flushing effect of the water tank flushing device with a lower water tank position can be effectively improved; on one hand, the water tank flushing device does not need to additionally arrange a through hole on the wall of the water tank for a pipeline for guiding water of the water outlet channel to the urinal to pass through, and can avoid the hidden danger of water tank water leakage caused by the arrangement of the flushing assisting valve in a mode of increasing the pipeline penetrating the water tank; on the other hand, be convenient for with the whole more change of current water tank washing unit's ordinary drain valve do the utility model discloses a drain valve with help the flushing valve in order to improve and erode the effect, be convenient for repack or trade and repair, repack or trade and repair with low costs.

Drawings

Fig. 1 is a schematic perspective view of a hidden front wall of a water tank according to an embodiment of the present invention;

fig. 2 is a schematic three-dimensional structure diagram of a drain valve and a flushing-assisted valve according to a first embodiment of the present invention (in the figure, the limiting member is located at the limiting position, the second float bucket is located at the low position (specifically, at the first falling position), the valve core is located at the falling position, and the abutting portion is located at the first position);

fig. 3 is a cross-sectional view of a drain valve and a flushing-assisted valve according to a first embodiment of the present invention (in the figure, the water stopping member is located at a water stopping position, the limiting member is located at a limiting position, the second float bowl is located at a low position (specifically, at a first falling position), and the valve core is located at a descending position);

FIG. 4 is an enlarged partial schematic view at A of FIG. 3;

fig. 5 is a first schematic view of a first usage state of the first embodiment of the present invention (in the figure, the limiting member is located at the yielding position, the second float barrel floats upwards to the high position, the valve core is located at the rising position, and the abutting portion is located at the first position);

fig. 6 is a schematic view of a second usage state of the first embodiment of the present invention (in the figure, the limiting member is located at the abdicating position, the second float barrel floats to the high position, and the valve core is located at the ascending position);

fig. 7 is a third schematic view of a first usage state of the present invention (in the figure, the limiting member is located at the limiting position, the second float bowl is located at the lower position (specifically, at the second falling position), and the valve core is located at the ascending position and is about to fall);

fig. 8 is a fourth schematic view of a usage state of the first embodiment of the present invention (in the figure, the limiting member is located at the limiting position, the second float bowl is located at the low position (specifically, at the second falling position), and the valve core is in the falling process, and the abutting portion is located at the second position);

fig. 9 is a schematic three-dimensional structure diagram of a drain valve and a flushing-assisted valve according to a second embodiment of the present invention (in the drawing, the limiting member is located at the limiting position, the second float bucket is located at the low position (specifically, at the first falling position), and the valve core is located at the falling position);

FIG. 10 is an enlarged partial schematic view at B of FIG. 9;

fig. 11 is an exploded schematic view of a second embodiment of the present invention;

fig. 12 is a schematic view showing a first usage state of the second embodiment of the present invention (in the figure, the limiting member is located at the yielding position, the second float bucket floats to the high position, and the valve core is located at the ascending position);

fig. 13 is a schematic view of a second usage state of the second embodiment of the present invention (in the figure, the limiting member is located at the yielding position, the second float bucket floats to the high position, and the valve core is located at the ascending position);

fig. 14 is a third schematic view of a second usage state of the second embodiment of the present invention (in the figure, the limiting member is located at the limiting position, the second float bowl is located at the low position (specifically, at the second falling position), and the valve core is located at the rising position and is about to fall or is already located at the falling position);

fig. 15 is a fourth schematic view of a second embodiment of the present invention in a use state (in the figure, the limiting member is located at the limiting position, the second float bowl is located at the low position (specifically, at the second falling position), and the valve element is located at the rising position and is about to fall or is already located at the falling position);

fig. 16 is a schematic perspective view of a third embodiment of the present invention after hiding the front wall of the water tank;

fig. 17 is a schematic perspective view of a drain valve and a flushing-assisting valve according to a third embodiment of the present invention;

fig. 18 is a sectional view of a drain valve and a flushing-assisted valve according to a third embodiment of the present invention;

fig. 19 is a schematic perspective view of a drain valve and a flushing-assisting valve according to a fourth embodiment of the present invention.

The reference numerals are illustrated below:

1-a water tank, 11-a water storage cavity, 2-a through-flow pipeline, 21-an overflow gap, 3-a drain valve, 31-a second valve body, 32-a valve core, 321-a valve rod, 322-a valve plate, 33-a base, 331-a drain channel, 4-a flushing-assisting valve, 411-a second floating barrel, 412-a movable piece, 413-a limiting piece, 414-a first elastic piece, 415-a sealing pad, 416-a screw rod, 42-a first valve body, 421-a water inlet channel, 422-a water outlet channel, 423-a water storage cavity, 43-a water stopping piece, 44-a back pressure cavity, 45-a pressure relief hole, 46-a piston, 47-a driving mechanism, 5-a first drain pipe, 6-a water guide pipe, 7-an abutting part, 8-a water inlet valve and 9-a water replenishing pipe, 10-overflow pipe, 20-push button.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the present invention is not limited to the embodiment of the water tank flushing device with improved flushing capability and the toilet bowl with the same.

Example one

Referring to fig. 1 to 8, a water tank flushing device with improved flushing capability of the present embodiment includes a water tank 1, a drain valve 3, a flushing-assisting valve 4 and a drain pipe, wherein the water tank 1 has a water storage cavity 11, the drain valve 3 is disposed in the water storage cavity 11 and is used for controlling the water to be drained from the water tank 1, the flushing-assisting valve 4 has a water inlet channel 421 and a water outlet channel 422, the water outlet channel 331 of the drain valve 3 is communicated with a urinal (not shown) of a toilet (not shown) through the drain pipe, the water inlet channel 421 is communicated with a water source (not shown), an outlet end of the water outlet channel 422 is located in the water storage cavity 11, and a pressure water flow flowing out from the water outlet channel 422 flows to the urinal through the water outlet channel 331. In the embodiment, the flushing-assisting valve 4 is arranged, the water inlet channel 421 of the flushing-assisting valve 4 is communicated with a water source, and the pressure water flow flowing out of the water outlet channel 422 of the flushing-assisting valve 4 is discharged to the urinal of the toilet, so that the pressure water flow flowing out of the water outlet channel 422 is used for assisting in flushing the urinal of the toilet, and the flushing effect of the existing water tank flushing device with a lower water tank position can be effectively improved; and the pressure water flow from the water outlet channel 422 flows to the urinal through the water discharge channel 331 of the water discharge valve 3, on one hand, the water tank flushing device does not need to additionally provide a through hole on the wall of the water tank for a pipeline for guiding the water of the water outlet channel to the urinal to pass through, and can avoid the hidden danger of water tank leakage caused by the way of increasing the pipeline for penetrating the water tank due to the arrangement of the flushing-assisting valve; on the other hand, be convenient for with the whole more change of current water tank washing unit's ordinary drain valve do the utility model discloses a drain valve with help the flushing valve in order to improve and erode the effect, be convenient for repack or trade and repair, repack or trade and repair with low costs.

Referring to fig. 1 to 8, in the present embodiment, the water storage chamber 11 further includes a through-flow pipe 2 disposed therein, that is, an inlet end and an outlet end of the through-flow pipe 2 are both located in the water storage chamber 11; the outlet end of the through-flow pipeline 2 is communicated with the drainage channel 331, the pressure water flow flowing out of the water outlet channel 422 flows into the urinal through the through-flow pipeline 2 and the drainage channel 331, and a hole for the through-flow pipeline 2 to penetrate through is not required to be additionally arranged on the wall of the water tank 1, so that the hidden trouble that the water leakage of the water tank 1 is increased due to the arrangement of the flushing assisting valve 4 is avoided.

Referring to fig. 1 to 8, in the present embodiment, the through-flow pipe 2 and the drain valve 3 are integrally formed; the drain valve 3 includes a base 33 provided on the bottom wall of the tank 1 and a main valve attached to the base 33, the base 33 is provided with a drain passage 331, an upper end opening of the drain passage 331 forms a drain port (not shown) of the drain valve 3, the drain valve 3 opens or closes the drain port to communicate or disconnect the water storage chamber 11 and the drain passage 331, and a lower end opening of the drain passage 331 communicates with a drain pipe; the outlet end of the through-flow pipe 2 communicates with the drain passage 331 through the drain port, and the through-flow pipe 2 communicates with the toilet bowl sequentially through the drain passage 331 and the drain pipe.

Specifically, in the present embodiment, the main valve includes the second valve body 31 attached to the base 33, and the valve element 32 disposed in the second valve body 31 and capable of moving up and down between the raised position and the lowered position, the valve element 32 includes the valve rod 321 and the valve plate 322 connected to the bottom end of the valve rod 321, the valve plate 322 is in open-close fit with the drain port of the drain valve 3, the through-flow pipe 2 is integrally formed on the valve rod 321 of the drain valve 3, so that the structure of the drain valve 3 is more compact, and the through-flow pipe 2 (the valve rod 321) is vertically arranged in the second valve body 31 of the drain valve 3, which can reduce the turning direction of the water guide pipe 6 described below, and is beneficial to avoiding the kinetic energy loss of water flow; when the valve core 32 is at the descending position, the valve sheet 322 closes the water outlet, and further closes the water discharge passage 331 to disconnect the water storage cavity 11 and the water discharge passage 331; when the valve core 32 is at the rising position, the valve sheet 322 opens the water discharge port, and further opens the water discharge passage 331 to communicate the water storage chamber 11 and the water discharge passage 331. Of course, in other embodiments, a side opening may be provided on the side wall of the drain channel, and the outlet end of the through-flow conduit is communicated with the drain channel through the side opening, so that the pressurized water flowing out of the water outlet channel can flow into the toilet bowl through the through-flow conduit and the drain channel.

Referring to fig. 1 to 8, in the present embodiment, the inlet end of the through-flow pipe 2 is located above the normal operating water level of the water storage chamber 11, and the inlet end of the through-flow pipe 331 can communicate with the upper portion of the water storage chamber 11 to serve as an overflow pipe of the water tank 1, and when the water level in the water storage chamber 11 is higher than the normal operating water level, the water in the water storage chamber 11 can be discharged through the overflow pipe (i.e., the through-flow pipe 2), thereby implementing the overflow function of the water tank 1. When this embodiment is specifically implemented, the overflow pipeline that can directly adopt to be equipped with on the current ordinary drain valve is as through-flow pipeline 2, can directly utilize the drain valve of current area overflow pipeline as like this the utility model discloses a drain valve need not to reform transform the drain valve, and is with low costs.

The embodiment also comprises a water guide pipe 6, the outlet end of the water outlet channel 422 is communicated with the inlet end of the water guide pipe 6, the outlet end of the water guide pipe 6 passes through the overflow pipeline (namely the through-flow pipeline 2) and then is directly or indirectly communicated with the urinal, so that the pressure water flow flowing out of the water outlet channel 422 flows to the urinal through the overflow pipeline (namely the through-flow pipeline 2); the water guide pipe 6 is relatively fixed with the base 33 of the drain valve 3, and an overflow gap 21 for communicating the water storage cavity 11 and the urinal is formed between the pipe wall of the water guide pipe 6 and the pipe wall of the overflow pipeline 2.

Specifically, in the present embodiment, the overflow gap 21 communicates the water storage chamber 11 with the drain channel 331, and further communicates the water storage chamber 11 with the toilet bowl; when the water level in the reservoir chamber 11 is higher than its normal operating water level, the water in the reservoir chamber 11 flows out into the drain path 331 through the overflow gap 21 and finally flows toward the toilet through the drain pipe.

Referring to fig. 1, in the present embodiment, the drainage pipe includes a first drainage pipe 5 and a second drainage pipe (not shown in the drawings, the second drainage pipe may be integrally formed with or separately formed from the base of the toilet), and the lower opening of the drainage channel 331 is communicated with the toilet bowl through the first drainage pipe 5 and the second drainage pipe in sequence; the outlet end of the water conduit 6 passes through the overflow conduit (i.e., the through-flow conduit 2) and then is communicated with the first water discharge conduit 5 (i.e., the outlet end of the water conduit 6 is located in the first water discharge conduit 5), so that the outlet end of the water conduit 6 is indirectly communicated with the toilet through the first water discharge conduit 5 and the second water discharge conduit, and therefore, the pressure water flow flowing out of the water outlet passage 422 of the flushing-assisting valve 4 and the water flow discharged from the water tank 1 through the water discharge passage 331 converge in the first water discharge conduit 5 and then flow together into the toilet, so that the impulsive force of the water flow towards the toilet is improved, and the flushing effect is improved. Certainly, in other embodiments, the outlet end of the water conduit may also be sequentially connected to the second water drainage pipe after passing through the overflow pipe and the first water drainage pipe, so that the outlet end of the water conduit is connected to the urinal through the second water drainage pipe; or the outlet end of the water guide pipe passes through the overflow pipeline, the first water discharge pipe and the second water discharge pipe in sequence and then is directly communicated with the urinal.

Referring to fig. 2 to 8, in this embodiment, the present invention further includes a starting mechanism for starting the flushing-assisting valve 4 and the drain valve 3, the flushing-assisting valve 4 is disposed in the water storage cavity 11, and the flushing-assisting valve 4 and the drain valve 3 are connected together, a water source provides pressure water to the water inlet channel 421, the water source may be municipal tap water, the flushing-assisting valve 4 includes a control mechanism, and a first valve body 42 having the water inlet channel 421 and the water outlet channel 422, the control mechanism includes a second floating barrel 411 capable of moving up and down between a high position and a low position, and a limiting member 413 movably disposed on the first valve body 42 and capable of moving between a limiting position and a yielding position, and the second floating barrel 411 rises or falls with the water level change in the water storage cavity 11; when the limiting member 413 is located at the limiting position, the second floating barrel 411 can be limited at a low position (when the second floating barrel 411 is located at the low position, the movable member 412 described below closes the pressure release hole 45); when the limiting member 413 is located at the abdicating position, the limiting on the second floating barrel 411 can be released, so that the second floating barrel 411 can float up to the high position (when the second floating barrel 411 is located at the high position, the movable member 412 described below opens the pressure release hole 45); when the second floating barrel 411 is located at a high position, the control mechanism controls the water inlet channel 421 to be communicated with the water outlet channel 422; when the second floating barrel 411 is at the low position, the control mechanism controls the water inlet channel 421 and the water outlet channel 422 to be disconnected, and at this time, the limiting member 413 can be reset to the limiting position from the abdicating position; the starting mechanism drives the limiting part 413 to move from the limiting position to the abdicating position so as to open the flushing assisting valve 4. The flushing-assisting valve 4 of the embodiment has a simple overall structure, the control mechanism can reliably control the opening and closing of the flushing-assisting valve 4, and the flushing-assisting valve 4 is easy to produce and manufacture.

Specifically, in this embodiment, the starting mechanism directly drives the drain valve 3 to open, the drain valve 3 is in linkage fit with the limiting member 413, and in the process that the starting mechanism drives the drain valve 3 to open the drain channel 331 so as to open the drain valve 3, the starting mechanism drives the limiting member 413 to move from the limiting position to the yielding position through the drain valve 3 (that is, the starting mechanism indirectly drives the flushing assisting valve 4 to open through the drain valve 3); the limiting member 413 is rotatably disposed on the first valve body 42; when the second floating barrel 411 is located at the low position, the limiting member 413 can be reset from the yielding position to the limiting position under the action of its own gravity. Of course, in other embodiments, the limiting member may also be slidably disposed on the first valve body; or a second elastic element may be disposed between the limiting element and the first valve body, and the limiting element may be capable of returning from the abdicating position to the limiting position under the action of the second elastic element, or the limiting element may have a first balancing weight, and the limiting element may be capable of returning from the abdicating position to the limiting position under the action of the first balancing weight.

Referring to fig. 2 to 8, in this embodiment, the flushing-assisting valve 4 further includes a water-stopping member 43 movably disposed on the first valve body 42 and capable of moving between a water inlet position and a water-stopping position, the water-stopping member 43 and the first valve body 42 cooperate to define a back pressure chamber 44, a through-flow passage (not shown in the figure) communicating the water inlet passage 421 and the back pressure chamber 44 is disposed between the water inlet passage 421 and the back pressure chamber 44, and a pressure-releasing hole 45 is disposed on a cavity wall of the back pressure chamber 44; when the water stop member 43 is located at the water inlet position, the water inlet passage 421 is communicated with the water outlet passage 422; when the water stop piece 43 is positioned at the water stop position, the water stop piece 43 disconnects the water inlet channel 421 and the water outlet channel 422; when the second floating barrel 411 is at a high position, the control mechanism opens the pressure relief hole 45 to control the water stop member 43 to move to the water inlet position, and further control the water inlet passage 421 to be communicated with the water outlet passage 422; when the second float bucket 411 is located at the low position, the control mechanism closes the pressure relief hole 45 to control the water stop piece 43 to move to the water stop position, and further control the water inlet channel 421 and the water outlet channel 422 to be disconnected.

Specifically, in this embodiment, the water stop member 43 is a water stop pad, and the water stop member 43 is provided with a through hole (not shown) which forms the through channel, and the inlet water in the inlet channel 421 flows into the back pressure cavity 44 through the through hole; the flushing-assisting valve 4 in the embodiment is controlled to be opened and closed by using a pressure difference water inlet principle, when the control mechanism opens the pressure relief hole 45, the water stop piece 43 moves to a water inlet position under the action of the water pressure of the water inlet channel 421, and the water inlet channel 421 is communicated with the water outlet channel 422, so that the flushing-assisting valve 4 can realize water inlet; when the control mechanism closes the pressure relief hole 45, the water stop member 43 moves to a water stop position under the action of the back pressure cavity 44, the water stop member 43 cuts off the communication between the water inlet passage 421 and the water outlet passage 422, and the flushing assisting valve 4 realizes water stop. The working principle of the water stopping or water feeding of the flush assisting valve 4 in the embodiment is the same as that of a water feeding valve used for controlling water feeding of a toilet water tank in the existing toilet water tank, and is well known in the art, and a detailed description is omitted here.

Referring to fig. 2 to 8, in the present embodiment, the control mechanism further includes a movable member 412 movably disposed on the first valve body 42 and engaged with the pressure relief hole 45 in an opening and closing manner, and the second float bucket 411 is engaged with the movable member 412 in a linkage manner; when the second floating barrel 411 rises to the high position, the movable piece 412 is linked to open the pressure relief hole 45; when the second float bucket 411 is at the low position, the movable element 412 closes the pressure relief hole. Specifically, in the present embodiment, a first elastic element 414 is disposed between the movable element 412 and the first valve body 42, and the first elastic element 414 is specifically a spring; when the second pontoon 411 is at the low position, the movable member 412 can be reset to a position closing the pressure relief hole 45 by the first elastic member 414.

Referring to fig. 2 to 8, in the present embodiment, the lower position includes a first falling position and a second falling position, and the height of the first falling position is higher than that of the second falling position; after the water tank 1 finishes draining, the second floating bucket 411 falls to a second falling position along with the water level of the water tank 1; in the process of water inlet of the water tank 1, the second floating barrel 411 rises along with the water level of the water tank 1 and is limited at a first falling position by the limiting piece 413 at the limiting position; when the second float bucket 411 is located at the first falling position (at this time, the second float bucket 411 is not completely fallen, and the second float bucket 411 is still in a floating state due to the buoyancy of water), under the elastic force of the first elastic member 414, the movable member 412 tightly abuts against the first valve body 42 and closes the pressure relief hole 45; when the second float bucket 411 is located at the second falling position (at this time, the second float bucket 411 falls completely), under the combined action of the elastic force of the first elastic member 414 and the gravity of the second float bucket 411, the movable member 412 tightly abuts against the first valve body 42 and closes the pressure relief hole 45. In this embodiment, after the second floating barrel 411 descends to the first falling position, along with the descending of the water level in the water storage cavity 11, the second floating barrel 411 continues to descend to the second falling position, so that the limiting member 413 can be better reset to the limiting position.

Specifically, in this embodiment, the movable element 412 is a swing rod rotatably disposed on the first valve body 42, one end of the swing rod is in linkage fit with the second float bucket 411, the other end of the swing rod is in open-close fit with the pressure relief hole 45, and the middle of the swing rod is rotatably connected with the first valve body 42. In this embodiment, the control mechanism further includes a screw 416, the second floating barrel 411 is specifically connected to one end of a swing rod (i.e., the movable element 412) through the screw 416, the limiting element 413 can be in limiting fit with the top of the screw 416 when located at the limiting position so as to limit the second floating barrel 411 at the first falling position, a sealing gasket 415 capable of being in open-close fit with the pressure relief hole 45 is arranged at the other end of the swing rod, the sealing gasket 415 and the first elastic element 414 are located at the same end of the swing rod 412, and the swing rod can be more reliably in open-close fit with the pressure relief hole 45 by arranging the sealing gasket 415 capable of being in open-close fit with the pressure relief hole 45 on the swing rod. Of course, in other embodiments, the movable member may be slidably disposed on the first valve body.

Referring to fig. 1 to 8, in the present embodiment, the valve core 32 is provided with an abutting portion 7; in the process that the valve element 32 is driven by the starting mechanism to ascend from the descending position to the ascending position (i.e. in the process that the drain valve 3 opens the drain passage 331), the valve element 32 can drive the limiting element 413 to move from the limiting position to the yielding position through the abutting fit of the abutting part 7 and the limiting element 413 so as to relieve the limiting of the second floating barrel 411, thereby realizing the process that the valve element 32 driven by the starting mechanism opens the drain passage 331 so as to open the drain valve 3, the starting mechanism drives the limiting element 413 to move from the limiting position to the yielding position through the valve element 32 of the drain valve 3, so that the second floating barrel 411 can float to the high position so as to drive the swing rod to open the pressure relief hole 45, so that the water inlet passage 421 is communicated with the water outlet passage 422, and further realizing the synchronous opening of the flushing assisting valve 4 to flush the urinal together when the drain valve 3 starts draining.

Specifically, in the present embodiment, the abutting portion 7 is rotatably provided on the valve body 32 and is rotatable between the first position and the second position, and the abutting portion 7 is rotatably provided at the tip end of the valve rod 321; when the abutting part 7 is located at the first position, the valve core 32 can drive the limiting part 413 to move from the limiting position to the abdicating position through the abutting fit between the abutting part 7 and the limiting part 413; after the valve core 32 drives the limiting piece 413 to move from the limiting position to the yielding position, the abutting part 7 and the limiting piece 413 lose abutting fit; in the process that the valve core 32 is reset from the ascending position to the descending position, the abutting part 7 abuts against the limiting part 413 and rotates from the first position to the second position to give way to the limiting part 413, so that the valve core 32 can continuously descend to be reset to the descending position smoothly; when the spool 32 is returned to the lowered position, the abutment portion 7 can be returned from the second position to the first position. In particular, in the present embodiment, the abutment 7 is capable of returning from the second position to the first position under its own weight. Of course, in other embodiments, a third elastic member may be disposed between the abutting portion and the valve core, and the abutting portion may be reset from the second position to the first position by the third elastic member; or the abutting part is provided with a second balancing weight and can be reset to the first position from the second position under the action of the second balancing weight.

In this embodiment, referring to fig. 1, a water inlet valve 8 is disposed in the water storage cavity 11, and a water inlet of the water inlet valve 8 is also communicated with a water source.

The present embodiment also provides a toilet (not shown) comprising a seat provided with a urinal and the flushing-capacity-improved tank flushing device as described in any one of the above.

The working principle of the embodiment is briefly described as follows:

in an initial state (i.e. normal state), the water is stored in the water storage cavity 11, as shown in fig. 2 to 4, the valve core 32 of the drain valve 3 is located at a descending position to close the drain opening (i.e. close the drain passage 331), the drain valve 3 stops water, the abutting portion 7 is located at a first position, the limiting member 413 is located at a limiting position, the second float bucket 411 is located at a low position (specifically, at a first descending position), at this time, the second float bucket 411 does not completely descend, the second float bucket 411 is still in a floating state due to buoyancy of water, but the second float bucket 411 is kept at the first descending position due to the limiting of the limiting member 413, under the action of the elastic force of the first elastic member 414, the sealing gasket 415 on the movable member 412 tightly abuts against the first valve body 42 and closes the pressure relief hole 45, the water stopping member 43 moves to a water stopping position under the action of the back pressure cavity 44 to cut off the communication between the water inlet passage 421 and the outlet passage 422, stopping water by the aid of the flushing valve 4;

during flushing, the valve core 32 of the drain valve 3 is driven by the starting mechanism to rise from the descending position to open the drain port (i.e. open the drain passage 331) to open the drain valve 3, thereby controlling the water tank 1 to drain; in the process of the valve core 32 rising, as shown in fig. 5 and 6, the abutting portion 7 on the valve core 32 abuts and cooperates with the limiting member 413 to drive the limiting member 413 to rotate from the limiting position to the yielding position, at this time, the limiting member 413 relieves the limiting position of the second floating barrel 411, the second floating barrel 411 floats upwards under the buoyancy of water, the second floating barrel 411 drives one end of the movable member 412 to rise upwards through the screw 416, so that the sealing gasket 415 on the other end of the movable member 412 opens the pressure release hole 45, the first elastic member 414 is compressed, the limiting member 413 is maintained at the yielding position through the screw 416 after the second floating barrel 411 rises, the water stop member 43 moves to the water inlet position under the water pressure of the water inlet channel 421, the water inlet channel 421 is communicated with the water outlet channel 422, thereby opening the drain valve 3, and controlling the flushing assisting valve 4 to be opened, so that the water flow discharged from the drain channel 331 of the drain valve 3 and the water flow discharged from the water outlet channel 422 of the flushing assisting valve 4 converge in the first drain pipe 5 and then flow together into the urinal to be communicated with the urinal The urinal is flushed, so that the flushing force is greatly improved, and the flushing effect is improved; as shown in fig. 5, after the valve core 32 drives the limiting member 413 to rotate from the limiting position to the receding position, the abutting portion 7 and the limiting member 413 lose the abutting engagement, and the valve core 32 continues to rise to the rising position to complete the opening of the drain valve 3;

when the water level in the water storage cavity 11 is lowered to a certain height, the second floating barrel 411 starts to descend first, after the second floating barrel 411 descends to the first falling position, along with the continuous descending of the water level in the water tank 1, as shown in fig. 7, after the water tank 1 finishes draining, the second floating barrel 411 descends to the second falling position, at this time, the second floating barrel 411 completely falls, the second floating barrel 411 no longer receives the buoyancy of water, the limiting piece 413 is reset from the yielding position to the limiting position under the action of its own gravity, so as to limit the second floating barrel 411 to float to the high position when the water tank 1 enters next time, and at the same time, the second floating barrel 411 is linked with the movable piece 412 to rotate, so that the sealing pad 415 on the movable piece 412 closes the pressure relief hole 45 under the combined action of the gravity of the second floating barrel 411 and the elastic force of the first elastic piece 414, and the flushing-assisted valve 4 stops water; after the second float bucket 411 descends to the second descending position, the valve core 32 starts to descend, and in the process that the valve core 32 is reset from the ascending position to the descending position, as shown in fig. 8, the abutting portion 7 abuts against the limiting member 413 and rotates from the first position to the second position to give way to the limiting member 413, so that the valve core 32 can be reset smoothly to the descending position to close the water discharge port of the water discharge valve 3; after the valve core 32 is reset to the descending position (namely the drain valve 3 closes the drain port), the abutting part 7 rotates from the second position to the first position under the action of the gravity of the abutting part; subsequently, the water inlet valve 8 is opened to replenish water to the water storage cavity 11, and as the water level in the water storage cavity 11 rises, the second floating barrel 411 floats from the second falling position to the first falling position due to the buoyancy of the water, and the limiting member 413 at the limiting position limits the second floating barrel 411 at the first falling position, so that the water tank flushing device is restored to the initial state.

In other embodiments, the outlet end of the through-flow pipe may pass through the drain passage and then directly or indirectly communicate with the toilet, so that the pressure water flowing out of the water outlet passage flows to the toilet through the drain passage, and specifically, the outlet end of the through-flow pipe may be: the outlet end of the through-flow pipeline is directly communicated with the urinal or indirectly communicated with the urinal through the drain pipe after sequentially passing through the drain outlet and the lower end opening of the drain passage; or, a side opening may be provided on the side wall of the drain passage, and after the outlet end of the through-flow duct passes through the side opening and the lower end opening of the drain passage in sequence, the outlet end of the through-flow duct is directly communicated with the toilet bowl or indirectly communicated with the toilet bowl through the drain pipe.

In other embodiments, it can also be set as: when the second floating barrel is positioned at a low position, the movable piece can reset to a position for closing the pressure relief hole under the action of the gravity of the movable piece; and further configured to: when the second floating barrel is located at the first falling position, the moving part tightly abuts against the first valve body and closes the pressure relief hole under the action of the self gravity of the moving part; when the second floating barrel is located at the second falling position, the moving part tightly abuts against the first valve body and closes the pressure relief hole under the combined action of the self gravity of the moving part and the gravity of the second floating barrel.

In other embodiments, it can also be set as: the movable part is provided with a third balancing weight, and when the second floating barrel is positioned at a low position, the movable part can be reset to a position for closing the pressure relief hole under the action of the third balancing weight; and further configured to: when the second floating barrel is located at the first falling position, the movable piece tightly abuts against the first valve body and closes the pressure relief hole under the action of the gravity of the third balancing weight; when the second floating bucket is located the second whereabouts position, under the combined action of the gravity of third balancing weight and the gravity of second floating bucket, the moving part tightly supports first valve body and closes the pressure release hole.

In other embodiments, it can also be set as: an attractive magnetic structure or a repulsive magnetic structure is arranged between the moving part and the first valve body, and when the second floating barrel is positioned at a low position, the moving part can be reset to a position for closing the pressure relief hole under the action of the magnetic force of the magnetic structure; and further configured to: when the second floating barrel is located at the first falling position, the movable piece tightly abuts against the first valve body and closes the pressure relief hole under the action of the magnetic force of the magnetic structure; when the second floating barrel is located at the second falling position, the moving part tightly abuts against the first valve body and closes the pressure relief hole under the combined action of the magnetic force of the magnetic structure and the gravity of the second floating barrel.

In other embodiments, the abutting portion may be fixedly disposed at the top end of the valve rod instead of being rotatably disposed at the top end of the valve rod, so that when the valve core is located at the ascending position, the abutting portion always abuts against the limiting member, so that the limiting member is kept at the yielding position; after the valve core is reset to the descending position, the limiting piece can be reset to the limiting position under the action of the gravity of the limiting piece.

Example two

The present embodiment is substantially the same as the first embodiment, and the difference is only that:

referring to fig. 9 to 15, in the present embodiment, the through-flow pipe is separately formed and attached to the drain valve 3, specifically, to the base 33 of the drain valve 3; a side opening (not shown) is provided on a side wall of the drain passage 331 through which an outlet end of the through-flow conduit communicates with the drain passage 331, and pressurized water flowing out of the water outlet passage 422 flows into the bowl through the through-flow conduit, so that the pressurized water flowing out of the water outlet passage 422 can flow into the bowl through the drain passage 331. In particular, in this embodiment, the outlet end of the through-flow conduit extends through the side opening and into the drain 331.

Referring to fig. 9 to 15, in the present embodiment, the inlet end of the through-flow pipe is communicated with the outlet end of the water outlet passage 422, so that the pressure water flowing out of the water outlet passage 422 can flow into the toilet bowl through the through-flow pipe, the through-flow pipe is provided independently of the overflow pipe 10 of the water tank 1, the overflow pipe 10 is attached to the base of the drain valve 3, and the outlet end of the overflow pipe 10 is directly communicated with the drain passage 331.

Referring to fig. 9 to 15, in the present embodiment, one end of a swing rod (i.e., a movable element 412) is in linkage fit with the second floating barrel 411, the other end of the swing rod is rotatably connected to the first valve body 42, the middle of the swing rod is in open-close fit with the pressure relief hole 45, and a sealing gasket 415 is disposed in the middle of the swing rod; one end of the swing rod (i.e., the movable element 412) is in linkage fit with the second floating barrel 411 through a screw 416.

Referring to fig. 9 to 15, in the present embodiment, the starting mechanism drives the valve element 32 and the limiting member 413 of the drainage valve 3 to move respectively, and when the starting mechanism drives the drainage valve 3 to open the drainage channel 331 so as to open the drainage valve 3, the starting mechanism directly drives the limiting member 413 to move from the limiting position to the yielding position. Specifically, in the present embodiment, the starting mechanism includes a key 20 capable of abutting against and matching with the limiting member 413, the key 20 is linked with the valve element 32, and when the key 20 is pressed to link the valve element 32 to ascend from the descending position to the ascending position so as to open the drain valve 3, the key 20 abuts against and matches with the limiting member 413 to drive the limiting member 413 to move from the limiting position to the yielding position, so that the limiting member 413 is directly driven to move from the limiting position to the yielding position in the process of opening the drain valve 3 by the starting mechanism; when the valve core 32 is lifted to the lifting position, the key 20 can be automatically reset.

In this embodiment, the structures and principles of the remaining parts not described are consistent with the embodiment, and are not described herein again.

In other embodiments, it may be further provided that the actuating mechanism includes a first actuating mechanism (not shown) and a second actuating mechanism (not shown) that are independently arranged, the first actuating mechanism is configured to drive the drain valve to open the drain channel to open the drain valve, and the second actuating mechanism is configured to drive the limiting member to move from the limiting position to the abdicating position. The advantage of designing like this is, when driving first actuating mechanism and second actuating mechanism simultaneously, can utilize the help towards valve to assist towards the time when the drainage valve control water tank drainage, when only driving first actuating mechanism, then help towards valve inoperative, only utilize through the drainage valve control water tank discharged water to wash the closestool, the user can select whether to utilize the help towards valve to assist towards as required.

EXAMPLE III

referring to fig. 9 to fig. 11, in the present embodiment, the flushing assisting valve 4 includes a first valve body 42 having a water storage cavity 423, a piston 46 movably disposed in the water storage cavity 423, and a driving mechanism 47 drivingly connected to the piston 46, the first valve body 42 is provided with a water inlet channel 421 and a water outlet channel 422, and the water inlet channel 421 and the water outlet channel 422 are both communicated with the water storage cavity 423; when the driving mechanism 47 drives the piston 46 to move to compress the volume of the water storage cavity 423, the water in the water storage cavity 423 can be discharged from the water outlet channel 422. The flushing-assisted valve 4 of the embodiment drives the piston 46 to move through the driving mechanism 47 so as to compress the volume of the water storage cavity 423, so that water in the water storage cavity 423 is discharged from the water outlet channel 422, and the flushing-assisted valve 4 is not influenced by the water pressure of a water source during the flushing-assisted process and is more stable in flushing assistance.

In this embodiment, the driving mechanism 47 is an electric driving mechanism 47; when the drainage valve 3 starts to drain water, the electric control driving mechanism 47 operates, and the driving mechanism 47 drives the piston 46 to move so as to compress the volume of the water storage cavity 423, so that the piston 46 pushes the water in the water storage cavity 423 to be discharged out of the water outlet channel 422 at a certain pressure, and the auxiliary water tank 1 flushes water, thereby improving the flushing effect. Of course, in other embodiments, the driving mechanism may be in linkage fit with the drain valve, specifically in linkage fit with a valve core of the drain valve, and the driving mechanism drives the piston to move to compress the volume of the water storage cavity in the process of opening the drain channel by the drain valve; or, the driving mechanism can be in linkage fit with a starting mechanism for starting the drain valve, the piston is driven by the starting mechanism to move to compress the volume of the water storage cavity in the process of starting the drain valve by the starting mechanism, and the flushing assisting valve is controlled to be started at the same time of starting the drain valve, so that the water flow discharged by the water tank through the drainage channel of the drain valve and the water flow discharged by the water outlet channel of the flushing assisting valve can flush the urinal at the same time.

Referring to fig. 9, in the present embodiment, the outlet of the inlet valve 8 is connected to the inlet channel 421 of the flushing-assisting valve 4 through the water replenishing pipe 9 to replenish water to the water storage cavity, that is, the inlet channel 421 is connected to the water source through the inlet valve 8; when the water inlet valve 8 is used for feeding water, the water storage cavity 423 is supplemented with water through the water supplementing pipe 9; referring to fig. 11, in the present embodiment, the outlet of the water inlet channel 421 and the inlet of the water outlet channel 422 are both disposed at the top of the water storage chamber 423.

In this embodiment, the structures and principles of the remaining portions not described are consistent with the embodiment, and are not described herein again.

Example four

The present embodiment is substantially the same as the first embodiment, and the differences are only that:

referring to fig. 12, in the embodiment, the flushing-assisting valve 4 is an electromagnetic valve, and the water source provides pressure water to the water inlet channel 421, and the water source may be municipal tap water; when the drainage valve 3 starts to drain water, the flushing assisting valve 4 is opened to assist in flushing the toilet bowl, so that the toilet bowl is flushed by the water flow discharged from the water tank 1 through the drainage channel 331 of the drainage valve 3 and the water flow discharged from the water outlet channel 422 of the flushing assisting valve 4 at the same time.

EXAMPLE five

in this embodiment (not shown), the flushing-assisting valve is a water pump, and the water source is water in the water tank or water outside the water tank. When the drainage valve starts to drain water, the water suction pump is started to assist in flushing the toilet bowl, so that the water flow discharged by the water tank through the drainage channel of the drainage valve and the water flow discharged by the water outlet channel of the flushing assisting valve flush the toilet bowl simultaneously.

Example six

in this embodiment (not shown), the outlet end of the water conduit is directly communicated with the overflow pipe (i.e., the through-flow pipe), so that the pressure water flowing out of the water outlet channel flows to the urinal through the overflow pipe (i.e., the through-flow pipe), and the water conduit is specifically a hose; the water flow flowing out of the water outlet channel is made to sequentially flow into a drain pipe through the water guide pipe and the overflow pipeline, the floating mechanism comprises a first floating barrel located above a normal working water level of the water storage cavity, the inlet end of the overflow pipeline is controlled to be closed when the first floating barrel is located at a third falling position so that the water storage cavity is disconnected from the overflow pipeline, and the inlet end of the overflow pipeline is controlled to be opened when the first floating barrel is located at a floating position so that the water storage cavity is communicated with the overflow pipeline.

Specifically, in this embodiment, an opening may be provided on a side wall of the overflow duct, and the outlet end of the water conduit is communicated with the overflow duct through the opening; the through-flow pipeline in the embodiment can also be integrally formed on the valve rod of the drain valve, and when the valve core is positioned at the ascending position, the outlet end of the through-flow pipeline is still communicated with the drain channel through the drain port, so that the pressure water flow flowing out of the water outlet channel flows to the urinal through the drain channel.

EXAMPLE seven

in this embodiment (not shown), the outlet end of the water conduit is directly communicated with the overflow pipe (i.e., the through-flow pipe), so that the pressure water flowing out of the water outlet channel flows to the urinal through the overflow pipe (i.e., the through-flow pipe), and the water conduit is specifically a hose; the water outlet channel of the flushing-assisting valve is communicated with the overflow pipeline through a water guide pipe, so that water flowing out of the water outlet channel sequentially flows into a drain pipe through the water guide pipe and the overflow pipeline; when the water level of the water storage cavity is higher than the inlet end of the overflow pipeline, the check valve can open the inlet end of the overflow pipeline in a one-way mode under the action of the water pressure in the water storage cavity so that the water in the water storage cavity can flow out of the overflow pipeline to a urinal, and the overflow function of the water tank is achieved; when the water level of the water storage cavity is not higher than the inlet end of the overflow pipeline, the one-way valve closes the inlet end of the overflow pipeline to prevent the water flowing out of the water outlet channel from flowing into the water storage cavity through the inlet end of the overflow pipeline.

Specifically, in this embodiment, an opening may be provided on a side wall of the overflow duct, and the outlet end of the water conduit is communicated with the overflow duct through the opening; the through-flow pipe in this embodiment may also be integrally formed on the valve stem of the drain valve, and when the valve core is located at the raised position, the outlet end of the through-flow pipe is still communicated with the drain passage through the drain port, so that the pressure water flowing out of the water outlet passage flows to the toilet bowl through the drain passage.

Compared with the prior art, the utility model has the advantages that the flushing-assisting valve is arranged, the water inlet channel of the flushing-assisting valve is communicated with the water source, and the pressure water flow flowing out of the water outlet channel of the flushing-assisting valve is discharged to the urinal of the closestool, so that the pressure water flow flowing out of the water outlet channel is used for assisting in flushing the urinal of the closestool, and the flushing effect of the water tank flushing device with a lower water tank position can be effectively improved; the outlet end of the through-flow pipeline is communicated with the drainage channel, or the outlet end of the through-flow pipeline passes through the drainage channel and then is directly or indirectly communicated with the urinal, so that on one hand, the water tank flushing device does not need to additionally arrange a through hole on the wall of the water tank for the pipeline for guiding water of the water outlet channel to the urinal to pass through, and the hidden danger of water tank leakage caused by the fact that the mode of increasing the pipeline penetrating the water tank is adopted due to the arrangement of the flushing assisting valve can be avoided; on the other hand, be convenient for with the whole more change of current water tank washing unit's ordinary drain valve do the utility model discloses a drain valve with help the flushing valve in order to improve and erode the effect, be convenient for repack or trade and repair, repack or trade and repair with low costs.

The above-mentioned embodiment only is used for further explaining the utility model discloses an improve water tank washing device of scouring ability and have its closestool, nevertheless the utility model discloses do not confine the embodiment to, all follow the utility model discloses a technical essence does any simple modification, equivalent change and modification to above embodiment, all falls into the utility model discloses technical scheme's protection within range.

Claims

1. A water tank flushing device capable of improving flushing capacity is characterized by comprising a water tank with a water storage cavity, a drain valve, a drain pipe and a flushing assisting valve, wherein the drain valve is arranged in the water storage cavity and used for controlling the water to be drained by the water tank; the pressure water flow from the water outlet channel flows to the urinal through the drainage channel.

2. A flush enhanced cistern flushing device as claimed in claim 1, further comprising a through flow conduit, the inlet end of said through flow conduit being located in said water storage chamber; the outlet end of the through-flow pipeline is communicated with the drainage channel, or the outlet end of the through-flow pipeline passes through the drainage channel and then is directly or indirectly communicated with the urinal; the pressure water flow from the water outlet channel flows to the urinal through the through flow pipeline.

3. An improved flush cistern flushing device as claimed in claim 2, wherein said through flow conduit is separately formed and attached to said drain valve; or the through-flow pipeline and the drain valve are integrally formed.

4. A cistern flushing device as claimed in claim 2, wherein the drain valve comprises a base provided on the cistern and a main valve attached to the base, the base being provided with the drain passage, an upper end opening of the drain passage forming a drain port of the drain valve, the drain valve opening or closing the drain port to connect or disconnect the reservoir chamber and the drain passage, a lower end opening of the drain passage communicating with the drain pipe;

5. The flushing device for the water tank with the flushing capability being improved as claimed in claim 4, wherein the main valve comprises a second valve body and a valve core which is arranged in the second valve body and can move up and down between a rising position and a falling position, the valve core comprises a valve rod and a valve plate connected to the bottom end of the valve rod, the through-flow pipeline is integrally formed on the valve rod, and the outlet end of the through-flow pipeline is communicated with the drainage channel through the drainage port; when the valve core is positioned at the descending position, the valve plate closes the water outlet; and when the valve core is positioned at the ascending position, the valve plate opens the water outlet.

6. A cistern flushing device of an enhanced flushing capability as claimed in any one of claims 2 to 5, wherein the inlet end of the through-flow conduit is located above the normal operating level of the water storage chamber and is communicable with the water storage chamber to act as an overflow conduit for the cistern; or the inlet end of the through-flow pipeline is communicated with the outlet end of the water outlet channel, and the through-flow pipeline is arranged independently of the overflow pipeline of the water tank.

7. The improved flush cistern flushing device of claim 6, further comprising a water conduit when said through-flow conduit is used as an overflow conduit for said cistern, the outlet end of said outlet passage being in communication with the inlet end of said water conduit;

8. A cistern flushing device as recited in claim 7, wherein the drain comprises a first drain and a second drain disposed on the base of the toilet, the drain passage communicating with the bowl sequentially through the first and second drains;

9. A flushing enhanced cistern flushing device as claimed in claim 7, wherein the outlet end of the conduit is in direct communication with the overflow conduit;

or, the overflow pipeline also comprises a one-way valve arranged at the inlet end of the overflow pipeline; when the water level of the water storage cavity is higher than the inlet end of the overflow pipeline, the one-way valve can open the inlet end of the overflow pipeline in a one-way manner under the action of the water pressure in the water storage cavity so that the water in the water storage cavity can flow out of the overflow pipeline; when the water level of the water storage cavity is not higher than the inlet end of the overflow pipeline, the one-way valve closes the inlet end of the overflow pipeline so as to prevent the water flowing out of the water outlet channel from flowing into the water storage cavity through the inlet end of the overflow pipeline.

10. A cistern flushing device as defined in any one of claims 1-3, further comprising a starting mechanism for opening the flushing-assisting valve and the drain valve, wherein the flushing-assisting valve is disposed in the water storage chamber, the water source provides pressurized water to the water inlet passage, the flushing-assisting valve includes a control mechanism, a first valve body provided with the water inlet passage and the water outlet passage, the control mechanism includes a second float barrel capable of moving up and down between a high position and a low position, and a limiting member movably disposed on the first valve body and capable of moving between a limiting position and a yielding position; when the limiting piece is positioned at the limiting position, the second floating barrel can be limited at a low position; when the limiting piece is located at the abdicating position, the limiting on the second floating barrel can be released, so that the second floating barrel can float to the high position; when the second floating barrel is positioned at the high position, the control mechanism controls the water inlet channel to be communicated with the water outlet channel; when the second floating barrel is located at the low position, the control mechanism controls the water inlet channel and the water outlet channel to be disconnected, and the limiting piece can be reset to the limiting position from the abdicating position; the starting mechanism drives the limiting piece to move from the limiting position to the yielding position so as to open the flushing assisting valve;

or the flushing-assisting valve comprises a first valve body with a water storage cavity, a piston movably arranged in the water storage cavity and a driving mechanism in transmission connection with the piston, wherein the first valve body is provided with the water inlet channel and the water outlet channel which are both communicated with the water storage cavity; when the driving mechanism drives the piston to move so as to compress the volume of the water storage cavity, water in the water storage cavity can be discharged from the water outlet channel;

11. The cistern flushing device of claim 10, wherein the drain valve is in linkage fit with the limiting member, and when the starting mechanism starts the drain valve, the starting mechanism drives the limiting member to move from the limiting position to the abdicating position through the drain valve; or, in the process that the starting mechanism starts the drain valve, the starting mechanism directly drives the limiting piece to move from the limiting position to the abdicating position; or, the starting mechanism comprises a first starting mechanism and a second starting mechanism which are independently arranged, the first starting mechanism is used for opening the drain valve, and the second starting mechanism is used for driving the limiting part to move to the yielding position from the limiting position.

12. A cistern flushing device with improved flushing capability as claimed in claim 10, wherein the flushing-assisted valve further comprises a water stop member movably disposed on the first valve body and movable between a water inlet position and a water stop position, the water stop member cooperates with the first valve body to define a back pressure chamber, a through-flow passage communicating the water inlet passage and the back pressure chamber is disposed between the water inlet passage and the back pressure chamber, and a pressure relief hole is disposed on a wall of the back pressure chamber; when the water stop piece is positioned at the water inlet position, the water inlet channel is communicated with the water outlet channel; when the water stopping piece is positioned at the water stopping position, the water stopping piece disconnects the water inlet channel and the water outlet channel; when the second floating barrel is located at the high position, the control mechanism opens the pressure relief hole to control the water stop piece to move to the water inlet position; when the second floating bucket is located at the low position, the control mechanism closes the pressure relief hole to control the water stop piece to move to the water stop position.

13. A cistern flushing device as defined in claim 12, wherein the control mechanism further comprises a movable member movably disposed on the first valve body and cooperating with the pressure relief hole in an opening and closing manner, the second float cooperating with the movable member in an interlocking manner; when the second floating barrel rises to the high position, the movable piece is linked to open the pressure relief hole; when the second floating bucket is located at the low position, the movable piece closes the pressure relief hole.

14. A cistern flushing device as claimed in claim 13, wherein when the second float is in the low position, the moveable member is able to return under its own weight to a position in which it closes the pressure relief aperture; or a first elastic piece is arranged between the moving piece and the first valve body, and when the second floating barrel is located at the low position, the moving piece can be reset to a position for closing the pressure relief hole under the action of the first elastic piece; or the movable part is provided with a third balancing weight, and when the second floating barrel is positioned at the low position, the movable part can be reset to a position for closing the pressure relief hole under the action of the third balancing weight; or, the moving part with be equipped with the magnetic structure that attracts mutually or the magnetic structure that repels between the first valve body, the second keg float is located during the low level, the moving part can be in the magnetic force effect of magnetic structure resets down to closing the position in pressure release hole.

15. An enhanced flush cistern flushing device as claimed in claim 14, wherein said low position comprises a first drop position and a second drop position, said first drop position being higher in elevation than said second drop position; after the water tank finishes draining, the second floating barrel falls to the second falling position along with the water level of the water tank; in the water inlet process of the water tank, the second floating barrel rises along with the water level of the water tank and is limited at the first falling position by the limiting piece at the limiting position; when the second floating barrel is located at the first falling position, under the action of the self gravity of the moving part, the elastic force of the first elastic part, the magnetic force of the magnetic structure or the gravity of the third balancing weight, the moving part tightly abuts against the first valve body and closes the pressure relief hole; when the second floating barrel is located at the second falling position, the moving member tightly abuts against the first valve body and closes the pressure relief hole under the combined action of the self gravity of the moving member or the elastic force of the first elastic member or the magnetic force of the magnetic structure or the gravity of the third balancing weight and the gravity of the second floating barrel.

16. A cistern flushing device as defined in claim 13, wherein the movable member is a rocker pivotally mounted on the first valve body;

17. A cistern flushing device of enhanced flushing capability as defined in claim 11, wherein said drain valve includes a base provided on said cistern and a main valve attached to said base, said base being provided with said drain passage, an upper end opening of said drain passage forming a drain port of said drain valve, said drain valve opening or closing said drain port to connect or disconnect said reservoir chamber and said drain passage, said main valve including a second valve body, a valve element provided on said second valve body and movable up and down between a raised position and a lowered position, said valve element being provided with an abutting portion; the valve core can close the water outlet when positioned at the descending position; the valve core can open the water outlet when positioned at the lifting position; in the process that the starting mechanism drives the valve core to ascend from the descending position to the ascending position, the valve core can drive the limiting piece to move from the limiting position to the abdicating position through the butt joint of the butting part and the limiting piece.

18. The improved flush cistern flushing device of claim 17, wherein said abutment is rotatably mounted on said valve cartridge and is rotatable between a first position and a second position; when the abutting part is located at the first position, the valve core can drive the limiting part to move from the limiting position to the abdicating position through the abutting fit of the abutting part and the limiting part; after the valve core drives the limiting part to move from the limiting position to the yielding position, the abutting part and the limiting part lose abutting fit; in the process that the valve core is reset from the ascending position to the descending position, the abutting part abuts against the limiting piece and rotates from the first position to the second position so as to give way to the limiting piece, and the valve core can continuously descend; when the valve core is reset to the descending position, the abutting part can be reset to the first position from the second position;

the abutting part can be reset from the second position to the first position under the action of the self gravity of the abutting part; or a third elastic piece is arranged between the abutting part and the valve core, and the abutting part can be reset to the first position from the second position under the action of the third elastic piece; or the abutting part is provided with a second balancing weight, and the abutting part can be reset from the second position to the first position under the action of the second balancing weight.

19. A cistern flushing device as claimed in claim 11, wherein the actuating mechanism includes a button which is engageable with the stop member, and when the button is depressed to open the drain valve, the button is engageable with the stop member to move the stop member from the stop position to the retracted position.

20. A cistern flushing device as defined in claim 10, wherein the stop member is capable of returning from the out-of-position to the stop position under its own weight; or a second elastic piece is arranged between the limiting piece and the first valve body, and the limiting piece can be reset to the limiting position from the abdicating position under the action of the second elastic piece; or, the locating part has first balancing weight, the locating part can be in under the effect of first balancing weight by the position of stepping down resets to limiting position.

21. A flush enhanced cistern flushing device as claimed in claim 10, wherein said stop member is rotatably or slidably disposed on said first valve body.

22. A flushing enhanced cistern flushing device as claimed in claim 10, wherein the drive mechanism is an electric drive mechanism; or the driving mechanism is in linkage fit with the drain valve, and the piston is driven to move by the driving mechanism to compress the volume of the water storage cavity when the drain valve opens the drain port; or the driving mechanism is in linkage fit with a starting mechanism for starting the drain valve, and the starting mechanism drives the piston to move to compress the volume of the water storage cavity in the process of starting the drain valve.

23. A cistern flushing device as recited in claim 10, wherein a water inlet valve is disposed in the water storage chamber, the water inlet of the water inlet valve is connected to the water source, and the water outlet of the water inlet valve is connected to the water inlet channel through a water replenishing pipe to replenish the water storage chamber.

24. A flush-enhancing cistern flushing device as claimed in claim 10, wherein the outlet of the inlet passage and the inlet of the outlet passage are both provided at the top of the reservoir chamber.

25. A cistern flushing device as defined in any one of claims 1 to 5, wherein the flushing-assisting valve is disposed in the water storage chamber and is connected to the drain valve.

26. A toilet bowl comprising a base provided with a bowl and a cistern flushing device of any one of claims 1 to 25 for improving flushing ability.