CN117432036A - Toilet flushing device capable of timely supplementing water - Google Patents

Abstract

The invention discloses a toilet flushing device capable of timely supplementing water. The control valve comprises a valve body, a first valve group, a second valve group and a buoyancy mechanism. The buoyancy mechanism comprises a pontoon cup arranged on the valve body, a pontoon arranged in the pontoon cup and a transmission assembly matched with the pontoon in a transmission manner, an opening is arranged at the top end of the pontoon cup, a water drain hole is arranged at the lower part of the pontoon cup, a water drain valve is arranged at the water drain hole, when the water level of a water storage cavity in the water tank drops to a preset water level, the pontoon drops, and the water drain valve moves from a position for opening the water drain hole to a position for closing the water drain hole; when the pontoon is in a floating state, the first valve group is positioned at a position for opening the first valve port, and the second valve group is positioned at a position for closing the second valve port; when the pontoon is in a falling state, the first valve group is in a position for closing the first valve port, the second valve group is in a position for opening the second valve port, and the water supply source is used for supplying water to the pontoon cup so as to enable the pontoon in the pontoon cup to float again.

Description

Toilet flushing device capable of timely supplementing water

Technical Field

The invention relates to the technical field of bathrooms, in particular to a toilet flushing device capable of timely supplementing water.

Background

With the rapid development of the technical field of toilets, consumers have increasingly higher requirements on the deodorizing ability of toilets. As is well known, after the sewage is discharged, the toilet bowl is often required to be replenished with water to form a water seal at the bottom of the toilet bowl, and the water seal can isolate the inlet of the sewage pipeline, so that the odor in the sewage pipeline is prevented from entering the room through the inlet of the sewage pipeline arranged at the bottom of the toilet bowl to pollute the indoor air. However, the existing water seal water replenishing is often carried out water seal water replenishing to the urinal by leading out a path of water replenishing channel through the water inlet valve of the water tank, when the water inlet valve is used for water inflow to the water tank, a small part of water can be shunted to replenish water to the urinal through the water replenishing channel, because the cross section area of the water replenishing channel is often smaller, the water replenishing flow is small, the water replenishing time is longer, the water seal can not be formed in time, the inlet of the sewage pipeline can not be plugged in time, and odor in the sewage pipeline still enters a room through the inlet of the sewage pipeline before the water seal is formed.

In addition, since the water source of the water inlet valve is tap water, the water pressure of the tap water is often unstable, so that the water supplementing amount of the water seal is also unstable.

In addition, some water tanks with full drainage and half drainage functions exist, and the water tank needs longer water inlet time after full drainage, so that the water supplementing time is correspondingly longer, and the water supplementing amount is larger; after the water tank is half drained, the required water inlet time is shorter, so that the water supplementing time is correspondingly shorter, and the water supplementing quantity is smaller, so that the water supplementing quantity of the full drainage and the half drainage is inconsistent. In order to make the water supplementing quantity of the full drainage and the half drainage consistent, some water tanks are designed in such a way that after the water level in the water tank rises to a preset height, after a pontoon for controlling the water supplementing floats, the water inlet valve supplements water for the urinal, so that the problem of inconsistent water supplementing quantity of the full drainage and the half drainage is solved, but the water supplementing action is further delayed, and more odor is led to enter a room.

In view of this, how to provide a toilet flushing device that can achieve timely water replenishment and ensure consistent water replenishment amount each time is a technical problem to be solved in the art.

Disclosure of Invention

The invention aims to provide a toilet flushing device capable of timely supplementing water, which adopts a mechanical control valve to timely supplement water to a toilet through a first water outlet channel, and has the advantages of stable water supplementing quantity, simple structure and reliable function.

In order to achieve the above purpose, the invention adopts the following technical scheme:

a toilet flushing device capable of timely replenishing water, comprising:

the water tank is provided with a water storage cavity;

the water pump is used for pumping water in the water storage cavity;

a control valve installed in the water tank;

the water supply source is used for supplying water to the pontoon cup of the control valve so that the pontoon arranged in the pontoon cup floats again;

the control valve further includes:

the valve body is provided with a water inlet channel, a first water outlet channel, a second water outlet channel, a first valve port and a second valve port, wherein the water inlet channel is communicated with the first water outlet channel through the first valve port, the water inlet channel is communicated with the second water outlet channel through the second valve port, the water inlet channel is communicated with an outlet of the water pump, and the first water outlet channel and the second water outlet channel are respectively communicated with a urinal of a toilet;

the first valve group is arranged in the valve body and used for controlling the opening and closing of the first valve port;

the second valve group is arranged in the valve body and used for controlling the opening and closing of the second valve port;

the buoyancy mechanism comprises a pontoon cup arranged on the valve body, a pontoon arranged in the pontoon cup and a transmission assembly matched with the pontoon in a transmission manner, an opening is formed in the top end of the pontoon cup, a water drain hole is formed in the lower portion of the pontoon cup, water in the water tank can flow into the pontoon cup through the opening at the top end of the pontoon cup, and the pontoon floats or falls along with the water level in the pontoon cup so as to control the opening and closing of the first valve group through the transmission assembly or simultaneously control the opening and closing of the first valve group and the second valve group through the transmission assembly; a water drain valve is arranged at the water drain hole, when the water level of the water storage cavity in the water tank drops to a preset water level, the pontoon is in a falling state, and the water drain valve moves from a position for opening the water drain hole to a position for closing the water drain hole;

when the pontoon is in a floating state, the first valve group is positioned at a position for opening the first valve port, and the second valve group is positioned at a position for closing the second valve port; when the pontoon is in a falling state, the first valve group is in a position for closing the first valve port, and the second valve group is in a position for opening the second valve port.

Preferably, the first valve group is a back pressure valve, the second valve group is a piston valve, the first valve group is provided with a first pressure relief hole, the transmission assembly is used for controlling the opening and closing of the first valve group by opening and closing the first pressure relief hole, when the first valve group is closed, the water pressure in the water inlet channel drives the piston of the second valve group to open the second valve port, and when the first valve group is opened, the piston of the second valve group is reset under the action of reset force to close the second valve port.

Preferably, the restoring force is an elastic force provided by an elastic member or a magnetic force provided by a magnetic member.

Preferably, the first valve group and the second valve group are backpressure valves, the first valve group is provided with a first pressure relief hole, the second valve group is provided with a second pressure relief hole, the transmission assembly is used for controlling the opening and closing of the first valve group by opening and closing the first pressure relief hole, the transmission assembly is used for controlling the opening and closing of the second valve group by opening and closing the second pressure relief hole, and when the transmission assembly is used for opening the first pressure relief hole, the second pressure relief hole is closed; and when the transmission assembly closes the first pressure relief hole, the second pressure relief hole is opened.

Preferably, the transmission assembly comprises a screw and a lifting rod, the lower part of the screw is in threaded connection with the pontoon, the first end of the lifting rod is connected with the top end of the screw, the second end of the lifting rod is provided with a second pressing pad matched with the second pressure relief hole, a rotating part connected to the valve body in a rotating way is arranged between the two ends of the lifting rod, and a first pressing pad matched with the first pressure relief hole is further arranged between the two ends of the lifting rod.

Preferably, the water supply source is a water storage cup, water in the water tank can flow into the water storage cup, the position of the water in the water storage cup is higher than that of the water in the pontoon cup, and the water in the water storage cup automatically flows into the pontoon cup under the action of gravitational potential energy.

Preferably, the water draining valve is a one-way valve for controlling water in the float bowl to flow out of the water draining hole in a one-way mode, the one-way valve is provided with a buoyancy part extending out of the float bowl, the buoyancy part is provided with a floating cavity, the one-way valve opens the water draining hole when floating under the buoyancy action of the floating cavity, and the one-way valve falls down and closes the water draining hole when the buoyancy of the floating cavity is insufficient.

Preferably, the float bowl is height-adjustably mounted to the valve body.

Preferably, the size of the through-flow cross section of the water drain hole on the pontoon cup can be adjusted; or,

the cross-sectional area of the water supply channel between the water supply source and the pontoon cup can be adjusted; or,

the size of the through-flow cross section of the water supply channel between the water supply source and the pontoon cup can be adjusted, and the size of the through-flow cross section of the water discharge hole on the pontoon cup can be adjusted.

Preferably, the outlet of the water pump is connected with the inlet of the water inlet channel through a communicating pipe, and the water pump and the valve body are assembled into an integrated structure; the water inlet channel and the second water outlet channel are longitudinally arranged, the first valve group is arranged above the water inlet channel, and the second valve group is arranged above the second water outlet channel.

Preferably, the first water outlet channel is communicated with an upper flushing port arranged at the top of a urinal of the closestool, and the second water outlet channel is communicated with a lower flushing port arranged at the bottom of the urinal of the closestool; or the first water outlet channel is communicated with a lower flushing port arranged at the bottom of the urinal of the closestool, and the second water outlet channel is communicated with an upper flushing port arranged at the top of the urinal of the closestool.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention adopts the water pump to pump the water in the water tank for flushing and supplementing water for the closestool, and can realize the following effects under the control of the control valve: firstly, when the water pump is started, water in the water tank is at full water level, the pontoon is in a floating state, and the closestool can be flushed through the first water outlet channel at the stage; then, as the water level in the water tank drops, after the water in the pontoon cup is discharged through the water discharge hole, the pontoon is in a falling state, and the closestool can be flushed through the second water outlet channel at the stage; finally, water is supplied to the pontoon cup through the water supply source, so that the pontoon in the pontoon cup floats again, and once the pontoon floats, the second water outlet channel stops water outlet, and meanwhile, the first water outlet channel discharges water again, and water sealing of the toilet bowl can be supplemented through the first water outlet channel at the stage. So design, on the one hand, when accomplishing the second water outlet channel and washing, can carry out the moisturizing to the closestool through the play water of first water outlet channel immediately, consequently, the moisturizing is more timely to the flow of first water outlet channel can be designed great, also moisturizing flow is big promptly, thereby can shorten moisturizing time greatly. Compared with the scheme that a water inlet valve is adopted to split a small part of water flow for supplementing water to the closestool in the prior art, the water supplementing flow is larger, and water supplementing can be completed more quickly and timely; compared with the scheme that water is replenished only after the water level in the water tank rises to a preset height in the prior art, so that the full and half water replenishing amount is consistent. On the other hand, the invention adopts the water pump to pump the water in the water tank for water supplementing, and the water supplementing pressure is stable, thereby ensuring the stable water supplementing quantity.

2. The water supply source is a water storage cup, water in the water tank can flow into the water storage cup, the position of water in the water storage cup is higher than that of water in the pontoon cup, and water in the water storage cup automatically flows into the pontoon cup under the action of gravitational potential energy, so that the designed water supply structure is simpler and more reliable.

3. The first valve group is a back pressure valve, the second valve group is a piston valve, or the first valve group and the second valve group are back pressure valves, and the back pressure valve is simple in structure and reliable in function.

Drawings

In order that the advantages of the invention will be readily understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the invention and are not therefore to be considered to be limiting of its scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings. In the drawings:

fig. 1 is a perspective assembly view of a flushing device (with a water tank and a water pump hidden) of a toilet bowl according to a first embodiment of the present invention;

FIG. 2 is a partially exploded perspective view of a flushing device of a toilet bowl according to a first embodiment of the present invention;

FIG. 3 is a perspective view showing a float bowl and a water storage bowl of a flushing device for a toilet bowl according to a first embodiment of the present invention;

FIG. 4 is a partial transverse cross-sectional view of a flushing device for a toilet according to a first embodiment of the present invention;

FIG. 5 is a partial longitudinal sectional view of a flushing device of a toilet bowl according to a first embodiment of the present invention (a float floating state, a check valve floating state);

FIG. 6 is another cross-sectional view in the state of FIG. 5;

fig. 7 is a partial longitudinal sectional view of a flushing device of a toilet bowl according to a first embodiment of the present invention (a float-down state, a one-way valve floating state);

FIG. 8 is another cross-sectional view of the FIG. 7 condition;

fig. 9 is a partial longitudinal sectional view of a flushing device of a toilet bowl according to a first embodiment of the present invention (a float-down state, a check valve-down state);

FIG. 10 is another cross-sectional view in the state of FIG. 9;

FIG. 11 is a partial longitudinal sectional view of a flushing device of a toilet bowl according to a first embodiment of the present invention (a float-up state, a check valve falling state);

FIG. 12 is another cross-sectional view in the state of FIG. 11;

fig. 13 is a perspective assembly view of a flushing device (with a water tank hidden) for a toilet bowl according to a second embodiment of the present invention;

FIG. 14 is a partially exploded perspective view of a flushing device of a toilet bowl according to a second embodiment of the present invention;

FIG. 15 is a partial transverse cross-sectional view of a flushing device for a toilet according to a second embodiment of the present invention;

FIG. 16 is a partial longitudinal sectional view of a flushing device of a toilet bowl according to a second embodiment of the present invention (a float floating state, a check valve floating state);

FIG. 17 is another cross-sectional view in the state of FIG. 16;

fig. 18 is a partial longitudinal sectional view of a flushing device of a toilet bowl according to a second embodiment of the present invention (a float-down state, a one-way valve floating state);

FIG. 19 is another cross-sectional view in the state of FIG. 18;

FIG. 20 is a partial longitudinal sectional view of a flushing device of a toilet bowl according to a second embodiment of the present invention (a float-down state, a check valve-down state);

FIG. 21 is another cross-sectional view in the state of FIG. 20;

FIG. 22 is a partial longitudinal sectional view of a flushing device of a toilet bowl according to a second embodiment of the present invention (a float floating state, a check valve falling state);

fig. 23 is another cross-sectional view in the state of fig. 22.

In the drawings, reference numerals are respectively:

1-a water pump;

2-control valve: 10-a valve body; 11-a water inlet channel; 12-a first water outlet channel; 13-a second water outlet channel; 14-a first valve port; 15-a second valve port; 20-a first valve group; 21-a first pressure relief vent; 22-a first back pressure chamber; 23-a first water stop rubber pad; 30-a second valve group; 31-a piston; 32-an elastic member; 33-a second pressure relief vent; 34-a second back pressure chamber; 35-a second water stop rubber cushion; 40-buoyancy mechanism; 41-float bowl; 411-opening; 412-a drain hole; 42-pontoon; 43-a transmission assembly; 431-screw; 432-lifting a pole; 4321-a first press pad; 4322-a second press pad; 4323-a rotating part; 44-a drain valve (one-way valve);

3-a water supply source (water storage cup); 301-through holes; 302-a cavity;

4-communicating pipe.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear and obvious, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

In the following discussion, details are set forth to provide a more thorough understanding of the present invention. However, it will be understood by those skilled in the art that the present invention may be practiced without one or more of these details. In particular examples, some technical features that are well known in the art have not been described in detail in order to avoid obscuring the invention. It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", and the like are used herein for illustrative purposes only and are not limiting.

Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meaning, such as a particular order or the like. Also, for example, the term "first component" does not itself connote the presence of "second component" and the term "second component" does not itself connote the presence of "first component".

First embodiment:

referring to fig. 1 to 12, a toilet flushing device capable of timely replenishing water according to a first embodiment of the present invention includes a water tank (not shown) having a water storage chamber, a water pump 1 for pumping water from the water storage chamber, a control valve 2 installed in the water tank, and a water supply source 3 for supplying water to a float cup 41 (described below) of the control valve 2, wherein the water pump 1 pumps water from the water tank to the control valve 2, and flows into a bowl of the toilet bowl to flush and replenish water to the bowl of the toilet bowl under control of the control valve 2. The water supply source 3 is used to supply water to the pontoon cups 41 so that the pontoons 42 (described below) in the pontoon cups 41 are re-floated.

The control valve 2 includes a valve body 10, a first valve group 20, a second valve group 30, a buoyancy mechanism 40, and the like, and the following description of the specific structure of the control valve 2 is given:

the valve body 10 is provided with a water inlet channel 11, a first water outlet channel 12, a second water outlet channel 13, a first valve port 14 and a second valve port 15, wherein the water inlet channel 11 is communicated with the first water outlet channel 12 through the first valve port 14, the water inlet channel 11 is communicated with the second water outlet channel 13 through the second valve port 15, the water inlet channel 11 is communicated with the outlet of the water pump 1, and the first water outlet channel 12 and the second water outlet channel 13 are respectively communicated with the urinal of the toilet;

the first valve group 20 is arranged in the valve body 10 and used for controlling the opening and closing of the first valve port 14, and when the first valve port 14 is opened by the first valve group 20, the water inlet channel 11 is communicated with the first water outlet channel 12; when the first valve port 14 is closed by the first valve group 20, the water inlet channel 11 and the first water outlet channel 12 are cut off;

the second valve group 30 is arranged in the valve body 10 and used for controlling the opening and closing of the second valve port 15, and when the second valve port 15 is opened by the second valve group 30, the water inlet channel 11 is communicated with the second water outlet channel 13; when the second valve port 15 is closed by the second valve group 30, the water inlet channel 11 and the second water outlet channel 13 are cut off;

the buoyancy mechanism 40 comprises a float bowl 41 arranged on the valve body 10, a float bowl 42 arranged in the float bowl 41 and a transmission assembly 43 in transmission fit with the float bowl 42, wherein the top end of the float bowl 41 is provided with an opening 411, the lower part of the float bowl is provided with a water draining hole 412, water in the water tank can flow into the float bowl 41 through the opening 411 of the top end of the float bowl 41, and the float bowl 42 floats or falls along with the water level in the float bowl 41 so as to control the opening and closing of the first valve group 20 through the transmission assembly 43. A water drain valve 44 is arranged at the water drain hole 412, when the water level of the water storage cavity in the water tank drops to a preset water level, the pontoon 42 is in a falling state, and the water drain valve 44 moves from a position for opening the water drain hole 412 to a position for closing the water drain hole 412;

when the pontoon 42 is in a floating state, the first valve group 20 is in a position of opening the first valve port 14, and the second valve group 30 is in a position of closing the second valve port 15; when the pontoon 42 is in the lowered state, the first valve group 20 is in a position to close the first valve port 14, and the second valve group 30 is in a position to open the second valve port 15.

By adopting the water pump 1 to pump water in the water tank for flushing and replenishing the toilet bowl, the following effects can be achieved under the control of the control valve 2: firstly, when the water pump is started, the water in the water tank is at full water level, the pontoon 42 is in a floating state, and the closestool can be flushed through the first water outlet channel 12 at the stage; then, as the water level in the water tank drops, after the water in the pontoon cup 41 is discharged through the water discharge hole 412, the pontoon 42 is in a falling state, and the toilet can be flushed through the second water outlet passage 13 at this stage; finally, water is supplied to the pontoon cup 41 through the water supply source, so that the pontoon 42 in the pontoon cup 41 floats again, and once the pontoon 42 floats, the second water outlet channel 13 stops water outlet, and meanwhile, the first water outlet channel 12 discharges water again, and water sealing of the toilet bowl can be supplemented through the first water outlet channel 12 at this stage. So design, on the one hand, when accomplishing second water outlet channel 13 and washing, can carry out the moisturizing to the closestool through the play water of first water outlet channel 12 immediately, consequently, the moisturizing is more timely to the flow of first water outlet channel 12 can be designed great, and the moisturizing flow is big promptly, thereby can shorten the moisturizing time greatly. Compared with the scheme that a water inlet valve is adopted to split a small part of water flow for supplementing water to the closestool in the prior art, the water supplementing flow is larger, and water supplementing can be completed more quickly and timely; compared with the scheme that water is replenished only after the water level in the water tank rises to a preset height in the prior art, so that the full and half water replenishing amount is consistent. On the other hand, water in the water tank is pumped by the water pump for supplementing water, and the water supplementing pressure is stable, so that the water supplementing quantity is stable.

Specifically, in this embodiment, the first valve set 20 is a back pressure valve, the second valve set 30 is a piston 31 valve, and the back pressure valve and the piston valve may be configured as usual in the art, wherein the back pressure valve is also referred to as a pilot valve or a differential pressure valve in the art. The first valve block 20 employing the back pressure valve generally includes a first relief hole 21, a first back pressure chamber 22, a first water stop rubber cushion 23, and the like (other known structures are not explained in detail herein), the first relief hole 21 is communicated with the first back pressure chamber 22, when the first relief hole 21 is opened, the first back pressure chamber 22 is relieved, the first water stop rubber cushion 23 opens the first valve port 14 under the water pressure of the water inlet channel 11, and when the first relief hole 21 is closed, the first water stop rubber cushion 23 closes the first valve port 14 under the water pressure of the water inlet channel 11 and the back pressure differential of the first back pressure chamber 22. The transmission assembly 43 controls the opening and closing of the first valve group 20 by opening and closing the first pressure release hole 21, specifically, the transmission assembly 43 includes a screw 431 and a lifting rod 432, the lower part of the screw 431 is in threaded connection with the pontoon 42, a first end of the lifting rod 432 is connected with the top end of the screw 431, and a second end of the lifting rod 432 is provided with a first pressure pad 4321 matched with the first pressure release hole 21.

When the first valve group 20 is closed, the water pressure in the water inlet channel 11 is increased, so that the water pressure can overcome the elastic force of the elastic piece 32 to drive the piston 31 of the second valve group 30 so as to open the second valve port 15; when the first valve group 20 is opened, the piston 31 of the second valve group 30 can be restored under the restoring force (i.e., elastic force) provided by the elastic member 32 to close the second valve port 15.

It will be appreciated that the restoring force for restoring the driving piston 31 may be other forms of restoring force than the elastic force provided by the elastic member 32, such as a magnetic force provided by a magnetic member. The elastic member 32 here employs a compression spring in particular.

In this embodiment, the water supply source 3 is a water storage cup 3, water in the water tank can flow into the water storage cup 3, the position of water in the water storage cup 3 is higher than the position of water in the Yu Futong cup 41, and water in the water storage cup 3 automatically flows into the pontoon cup 41 under the action of gravitational potential energy. Specifically, the side wall of the water storage cup 3 is provided with a through hole 301, and water in the water storage cup 3 flows into the pontoon cup 41 through the through hole 301. It will be appreciated that the water supply source 3 may be a water tank inlet valve (not shown) instead of the water storage cup 3, i.e. the inlet valve may be used for supplying water to the pontoon cup 41 instead of the water tank. The water inlet valve of the water tank is of a known structure. Of course, the water supply source 3 may be of other types as long as the pontoon cup 41 can be supplied with water.

Preferably, referring to fig. 1 to 3, in this embodiment, the water storage cup 3 and the pontoon cup 41 are integrally attached. The water storage cup 3 is provided with a cavity 302 which is penetrated up and down, and the water storage cup 3 is sleeved and fixed outside the valve body 10 in a vertically sliding way through the cavity 302.

In this embodiment, the drain valve 44 is a one-way valve 44 for controlling water in the float bowl 41 to flow out of the drain hole 412 in a one-way manner, the one-way valve 44 has a buoyancy portion extending out of the float bowl 41, the buoyancy portion is provided with a float cavity, the one-way valve 44 opens the drain hole 412 when the float cavity floats under the buoyancy action of the float cavity, and the one-way valve 44 falls down and closes the drain hole 412 when the float cavity has insufficient buoyancy.

In this embodiment, the float cup 41 is mounted on the valve body 10 so as to be height-adjustable, so that the time from the floating state to the time when the float 42 falls after the water pump 1 is turned on can be adjusted, and thus the water outlet time (flushing time) of the first water outlet passage 12 in the first stage can be adjusted.

In some embodiments, the size of the through-flow cross-section of the drain hole 412 on the pontoon cup 41 can be selected to be adjustable; alternatively, in some embodiments, the cross-sectional area of the water supply channel (i.e., the through-flow hole 301) provided between the water supply source 3 and the float bowl 41 may be sized to be adjustable; alternatively, in some embodiments, the cross-sectional area of the water supply channel (i.e., the through-flow hole 301) provided between the water supply source 3 and the float cup 41 and the cross-sectional area of the drain hole 412 in the float cup 41 may be designed to be adjustable. This allows the float 42 to be adjusted as desired for its timing of rising or falling, with greater versatility.

In this embodiment, the outlet of the water pump 1 is connected with the inlet of the water inlet channel 11 through the communicating pipe 4, and the water pump 1 and the valve body 10 are assembled into an integrated structure, so that the whole device has better integrity and more compact structure.

In this embodiment, the water inlet channel 11 and the second water outlet channel 13 are longitudinally arranged, the first valve group 20 is disposed above the water inlet channel 11, and the second valve group 30 is disposed above the second water outlet channel 13, so that the overall structure is simpler and more compact.

In this embodiment, the first water outlet channel 12 is selectively connected to an upper flushing port provided at the top of a bowl (not shown) of the toilet to perform "washing ring flushing" (the washing ring flushing can flush the inner wall of the bowl), and the second water outlet channel 13 is connected to a lower flushing port provided at the bottom of the bowl of the toilet to perform "jet flushing" (the jet flushing can spray water to the bottom of the bowl, thereby causing a drain pipe to siphon, and realizing siphon drain); alternatively, in other embodiments, the first outlet channel 12 may be selectively routed to a lower flush port provided at the bottom of the bowl of the toilet and the second outlet channel 13 may be routed to an upper flush port provided at the top of the bowl of the toilet.

The specific working principle and process of this embodiment are briefly described as follows:

referring to fig. 5 and 6, at this time, in order to start the water pump 1, the water tank and the water storage cup 3 are all filled with a predetermined amount of water, the water pump 1 pumps the water in the water tank to the water inlet channel 11, the pontoon 42 is in a floating state, the pontoon 42 opens the first pressure relief hole 21 of the first valve group 20 through the screw 431 and the lifting lever 432, the first back pressure chamber 22 is depressurized, the first water stop rubber pad 23 opens the first valve port 14 under the water pressure of the water inlet channel 11, thereby communicating the water inlet channel 11 and the first water outlet channel 12, and the water flows through the first water outlet channel 12 to the upper flushing port of the top of the urinal of the toilet bowl to perform "washing" and the water flow of the washing "washes the inner wall of the urinal and then flows into the bottom of the urinal. Meanwhile, referring to fig. 6, the check valve 44 is also in a floating state to open the drain hole.

As the water pump 1 continuously pumps water, the water level in the water tank drops, and the water in the pontoon cup 41 flows out through the drain hole 412, so that the water level in the pontoon cup 41 drops along with the drop of the water level in the water tank, and when the water level in the pontoon cup 41 drops to a predetermined position, the buoyancy of the pontoon 42 is insufficient and drops. After the pontoon 42 falls, the pontoon 42 closes the first pressure relief hole 21 of the first valve group 20 through the screw 431 and the lifting lever 432, and the first water stop rubber cushion 23 closes the first valve port 14 under the action of the water pressure of the water inlet passage 11 and the back pressure difference of the first back pressure chamber 22, thereby cutting off the communication between the water inlet passage 11 and the first water outlet passage 12. Once the first valve port 14 is closed, the water pressure in the water inlet passage 11 increases so that the piston 31 of the second valve block 30 can be driven against the elastic force of the elastic member 32 to open the second valve port 15 (see fig. 7), and the check valve 44 remains in a floating state, see fig. 8.

After the second valve port 15 is opened, the water flow of the water inlet channel 11 flows to the second water outlet channel 13, and then is led to a lower flushing port arranged at the bottom of the urinal of the toilet through the second water outlet channel 13 to perform 'jet flushing', so that the sewage pipe is triggered to generate siphon, and siphon sewage is realized. After the float bowl 42 falls, when the water level in the tank continues to fall below the float chamber of the check valve 44, the check valve 44 also falls due to insufficient buoyancy, thereby closing the drain hole 412, as shown in fig. 9 and 10.

After the one-way valve 44 closes the drain hole 412, water flowing from the water storage cup 3 into the float cup 41 through the through-hole 301 is stored in the float cup 41, so that the water level in the float cup 41 rises again until the float 42 floats again. After the pontoon 42 is lifted again, the first valve group 20 reopens the first valve port 14, the water flow in the water inlet channel 11 is switched to the first water outlet channel 12, the water pressure in the water inlet channel 11 is insufficient to overcome the elastic force of the elastic member 32, and the elastic member 32 drives the piston 31 to reopen the second valve port 15, at this time, as shown in fig. 11 and 12. Thus, the toilet bowl of the toilet can be replenished through the first water outlet channel 12.

When the first water outlet channel 12 ends to replenish water in the urinal of the toilet, the water inlet valve (not shown) of the water tank starts to replenish water in the water tank, the one-way valve 44 floats again along with the rising of the water level in the water tank, and water in the water tank flows into the water storage cup 3 again to replenish water in the water storage cup 3, and when the water tank ends to replenish water, the whole control valve 2 is restored to the state shown in fig. 5 and 6 to prepare for the next flushing.

Second embodiment:

referring to fig. 13 to 23, a toilet bowl flushing device according to a second embodiment of the present invention is different from the first embodiment in that: in the first embodiment, the pontoon 42 floats or falls along with the water level in the pontoon cup 41 to control the opening and closing of only the first valve group 20 through the transmission assembly 43, the first valve group 20 is a back pressure valve, and the second valve group 30 is a piston valve; in this embodiment, the pontoon 42 floats or falls along with the water level in the pontoon cup 41 to simultaneously control the opening and closing of the first valve bank 20 and the second valve bank 30 through the transmission assembly 43, and the first valve bank 20 and the second valve bank 30 are backpressure valves, and the specific structures of the lifting lever 432 in this embodiment are different from those of the lifting lever 432 in the first embodiment. Specifically, the first valve block 20 has a first relief hole 21, and the second valve block 30 has a second relief hole 33. As in the first embodiment, the first valve block 20 employing the back pressure valve generally includes a first relief hole 21, a first back pressure chamber 22, a first water stop cushion 23, and the like (other known structures are not explained in detail herein), the first relief hole 21 being in communication with the first back pressure chamber 22, the first back pressure chamber 22 being relieved when the first relief hole 21 is opened, the first water stop cushion 23 opening the first valve port 14 under the water pressure of the water intake passage 11, and the first water stop cushion 23 closing the first valve port 14 under the water pressure of the water intake passage 11 and the back pressure differential of the first back pressure chamber 22 when the first relief hole 21 is closed. Similarly, the second valve block 30 using the back pressure valve generally includes a second pressure relief hole 33, a second back pressure chamber 34, a second water stop rubber cushion 35, etc. (other known structures are not described in detail herein), the second pressure relief hole 33 is communicated with the second back pressure chamber 34, when the second pressure relief hole 33 is opened, the second back pressure chamber 34 is depressurized, the second water stop rubber cushion 35 opens the second valve port 15 under the hydraulic pressure of the water inlet channel 11, and when the second pressure relief hole 33 is closed, the second water stop rubber cushion 35 closes the second valve port 15 under the hydraulic pressure of the water inlet channel 11 and the back pressure differential of the second back pressure chamber 34.

The transmission assembly 43 controls the opening and closing of the first valve bank 20 by opening and closing the first pressure relief hole 21, the transmission assembly 43 controls the opening and closing of the second valve bank 30 by opening and closing the second pressure relief hole 33, and the transmission assembly 43 closes the second pressure relief hole 33 when opening the first pressure relief hole 21; when the transmission assembly 43 closes the first relief hole 21, the second relief hole 33 is opened.

The difference between the lifting lever 432 of the present embodiment and the lifting lever 432 of the first embodiment is that: the first end of the lifting rod 432 of the embodiment is connected with the top end of the screw 431, the second end of the lifting rod 432 is provided with a second pressing pad 4322 matched with the second pressure release hole 33, a rotating part 4323 rotatably connected on the valve body 10 is arranged between the two ends of the lifting rod 432, and a first pressing pad 4321 matched with the first pressure release hole 21 is also arranged between the two ends of the lifting rod 432. Specifically, the rotating portion 4323 is a rotating shaft, and the valve body 10 is provided with a shaft hole pivotally connected to the rotating portion 4323.

The specific working principle and process of this embodiment are briefly described as follows:

the specific working principle and process of this embodiment are briefly described as follows:

referring to fig. 16 and 17, at this time, in order to start starting the water pump 1, the water tank and the water storage cup 3 are filled with a predetermined amount of water, the water pump 1 pumps the water in the water tank to the water inlet channel 11, the float 42 is in a floating state, the float 42 opens the first pressure relief hole 21 of the first valve block 20 and closes the second pressure relief hole 33 of the second valve block 30 through the screw 431 and the lifting lever 432, the first back pressure chamber 22 is depressurized, the first water stop rubber pad 23 opens the first valve port 14 under the water pressure of the water inlet channel 11, the second back pressure chamber 34 is pressurized, the second water stop rubber pad 35 closes the second valve port 15 under the water pressure of the water inlet channel 11 and the back pressure difference of the second back pressure chamber 34, so that the water inlet channel 11 communicates with the first water outlet channel 12 to be shut off with the second water outlet channel 13, and the water flow is led to the upper flushing port on the top of the toilet bowl through the first water outlet channel 12 to perform "flushing of the flushing ring", and the water flow of the flushing ring flows into the bottom of the inner wall of the toilet bowl after flushing. Meanwhile, referring to fig. 17, the check valve 44 is also in a floating state to open the drain hole.

As the water pump 1 continuously pumps water, the water level in the water tank drops, and the water in the pontoon cup 41 flows out through the drain hole 412, so that the water level in the pontoon cup 41 drops along with the drop of the water level in the water tank, and when the water level in the pontoon cup 41 drops to a predetermined position, the buoyancy of the pontoon 42 is insufficient and drops. After the pontoon 42 falls, the pontoon 42 closes the first pressure release hole 21 of the first valve group 20 and opens the second pressure release hole 33 of the second valve group 30 through the screw 431 and the lifting lever 432, the first back pressure chamber 22 is pressurized, the first water-stop rubber cushion 23 closes the first valve port 14 under the action of the water pressure of the water inlet channel 11 and the back pressure difference of the first back pressure chamber 22, the second back pressure chamber 34 is depressurized, and the second water-stop rubber cushion 35 opens the second valve port 15 under the action of the water pressure of the water inlet channel 11, so that the water inlet channel 11 is communicated with the second water outlet channel 13 to be cut off from the first water outlet channel 12, as shown in fig. 18. The check valve 44 is still in a floating state at this time, see fig. 19.

After the second valve port 15 is opened, the water flow of the water inlet channel 11 flows to the second water outlet channel 13, and then is led to a lower flushing port arranged at the bottom of the urinal of the toilet through the second water outlet channel 13 to perform 'jet flushing', so that the sewage pipe is triggered to generate siphon, and siphon sewage is realized. After the float bowl 42 falls, when the water level in the tank continues to fall below the float chamber of the check valve 44, the check valve 44 also falls due to insufficient buoyancy, thereby closing the drain hole 412, as shown in fig. 20 and 21.

After the one-way valve 44 closes the drain hole 412, water flowing from the water storage cup 3 into the float cup 41 through the through-hole 301 is stored in the float cup 41, so that the water level in the float cup 41 rises again until the float 42 floats again. After the pontoon 42 is lifted again, the pontoon 42 drives the lifting lever 432 to reopen the first pressure relief hole 21 of the first valve bank 20 and to reopen the second pressure relief hole 33 of the second valve bank 30, so that the first valve bank 20 reopens the first valve port 14, the second valve bank 30 reopens the second valve port 15, and the water flow of the water inlet channel 11 is switched to the first water outlet channel 12, at this time, as shown in fig. 22 and 23. Thus, the toilet bowl of the toilet can be replenished through the first water outlet channel 12.

When the first water outlet passage 12 ends to replenish water in the urinal of the toilet, a water inlet valve (not shown) of the water tank starts to replenish water in the water tank, the one-way valve 44 floats again along with rising of the water level in the water tank, and water in the water tank flows into the water storage cup 3 again to replenish water in the water storage cup 3, and when the water tank ends to replenish water, the whole control valve 2 is restored to the state shown in fig. 16 and 17 to prepare for the next flushing.

While the foregoing description illustrates and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of use in various other combinations, modifications and environments and is capable of changes or modifications within the spirit of the invention herein, either as a result of the foregoing teachings or as a result of the knowledge or skill of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.

Claims (11)

1. A toilet flushing device capable of timely replenishing water, comprising:

the water tank is provided with a water storage cavity;

the water pump is used for pumping water in the water storage cavity;

a control valve installed in the water tank;

the water supply source is used for supplying water to the pontoon cup of the control valve so that the pontoon arranged in the pontoon cup floats again;

the control valve further includes:

the valve body is provided with a water inlet channel, a first water outlet channel, a second water outlet channel, a first valve port and a second valve port, wherein the water inlet channel is communicated with the first water outlet channel through the first valve port, the water inlet channel is communicated with the second water outlet channel through the second valve port, the water inlet channel is communicated with an outlet of the water pump, and the first water outlet channel and the second water outlet channel are respectively communicated with a urinal of a toilet;

the first valve group is arranged in the valve body and used for controlling the opening and closing of the first valve port;

the second valve group is arranged in the valve body and used for controlling the opening and closing of the second valve port;

the buoyancy mechanism comprises a pontoon cup arranged on the valve body, a pontoon arranged in the pontoon cup and a transmission assembly in transmission fit with the pontoon, an opening is arranged at the top end of the pontoon cup, a water drain hole is arranged at the lower part of the pontoon cup, water in the water tank can flow into the pontoon cup through the opening at the top end of the pontoon cup, and the pontoon floats or falls along with the water level in the pontoon cup so as to control the opening and closing of the first valve group through the transmission assembly or simultaneously control the opening and closing of the first valve group and the second valve group through the transmission assembly; a water drain valve is arranged at the water drain hole, when the water level of the water storage cavity in the water tank drops to a preset water level, the pontoon is in a falling state, and the water drain valve moves from a position for opening the water drain hole to a position for closing the water drain hole;

when the pontoon is in a floating state, the first valve group is positioned at a position for opening the first valve port, and the second valve group is positioned at a position for closing the second valve port; when the pontoon is in a falling state, the first valve group is in a position for closing the first valve port, and the second valve group is in a position for opening the second valve port.

2. The toilet flushing device of claim 1, wherein the first valve block is a back pressure valve, the second valve block is a piston valve, the first valve block has a first pressure relief hole, the transmission assembly controls the opening and closing of the first valve block by opening and closing the first pressure relief hole, when the first valve block is closed, the water pressure in the water inlet channel drives the piston of the second valve block to open the second valve port, and when the first valve block is opened, the piston of the second valve block is reset under the action of a reset force to close the second valve port.

3. The toilet bowl flushing device of claim 2, wherein the restoring force is an elastic force provided by an elastic member or a magnetic force provided by a magnetic member.

4. The toilet flushing device of claim 1, wherein the first and second valve sets are backpressure valves, the first valve set has a first pressure relief hole, the second valve set has a second pressure relief hole, the transmission assembly controls the opening and closing of the first valve set by opening and closing the first pressure relief hole, the transmission assembly controls the opening and closing of the second valve set by opening and closing the second pressure relief hole, and the transmission assembly closes the second pressure relief hole when opening the first pressure relief hole; and when the transmission assembly closes the first pressure relief hole, the second pressure relief hole is opened.

5. The toilet flushing device of claim 4, wherein the transmission assembly comprises a screw and a lifting rod, the lower portion of the screw is in threaded connection with the pontoon, a first end of the lifting rod is connected with the top end of the screw, a second pressing pad matched with the second pressure release hole is arranged at the second end of the lifting rod, a rotating portion connected to the valve body in a rotating manner is arranged between two ends of the lifting rod, and a first pressing pad matched with the first pressure release hole is also arranged between two ends of the lifting rod.

6. The toilet bowl flushing device of claim 1 wherein the water supply source is a water storage cup into which water in the tank flows, the water in the water storage cup being located at a higher level than the water in the pontoon cup, the water in the water storage cup automatically flowing into the pontoon cup under the influence of gravitational potential energy.

7. The toilet flushing device of claim 1, wherein the water drain valve is a one-way valve for controlling water in the float bowl to flow out of the water drain hole in one direction, the one-way valve having a buoyancy portion extending out of the float bowl, the buoyancy portion being provided with a float chamber, the one-way valve opening the water drain hole when the float chamber floats under the buoyancy, the one-way valve dropping and closing the water drain hole when the float chamber lacks buoyancy.

8. The toilet flushing device of claim 1 wherein the float cup is height-adjustably mounted to the valve body.

9. The toilet bowl flushing device of claim 1 wherein the cross-sectional area of the drain hole in the float bowl is adjustable; or,

the cross-sectional area of the water supply channel between the water supply source and the pontoon cup can be adjusted; or,

the size of the through-flow cross section of the water supply channel between the water supply source and the pontoon cup can be adjusted, and the size of the through-flow cross section of the water discharge hole on the pontoon cup can be adjusted.

10. The flushing device of a toilet according to claim 1, wherein an outlet of the water pump is connected to an inlet of the water inlet passage through a communication pipe, and the water pump and the valve body are assembled into an integral structure; the water inlet channel and the second water outlet channel are longitudinally arranged, the first valve group is arranged above the water inlet channel, and the second valve group is arranged above the second water outlet channel.

11. The toilet flushing device of claim 1, wherein the first water outlet passage opens into an upper flushing port provided at a top of a bowl of the toilet, and the second water outlet passage opens into a lower flushing port provided at a bottom of the bowl of the toilet; or the first water outlet channel is communicated with a lower flushing port arranged at the bottom of the urinal of the closestool, and the second water outlet channel is communicated with an upper flushing port arranged at the top of the urinal of the closestool.