CN111827423B

CN111827423B - Toilet flushing device

Info

Publication number: CN111827423B
Application number: CN202010717322.3A
Authority: CN
Inventors: 林邦福; 林龙成
Original assignee: Xiamen Enmu Intelligent Technology Co ltd
Current assignee: Renqiu Jiecang Sanitary Ware Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2023-03-31
Anticipated expiration: 2040-07-23
Also published as: CN111827423A

Abstract

The invention discloses a toilet flushing device, which comprises a water tank; the water inlet mechanism is provided with a water inlet channel, a first water outlet channel and a second water outlet channel which are communicated with the inner cavity of the water tank, and also comprises a control valve which is used for controlling the water inlet channel to be communicated with the first water outlet channel or the second water outlet channel; the energy storage mechanism is provided with a water inlet and a water outlet, the water inlet is communicated with the second water outlet channel, and when the control valve controls the water inlet channel to be communicated with the second water outlet channel, water flows to the energy storage mechanism, is stored and pressurized by the energy storage mechanism and then flows out of the water outlet to the brush ring channel of the closestool; and the drainage mechanism is used for controlling the water in the water tank to flow to the jet channel of the closestool, and the water flow of the second water outlet channel or the water flow of the water outlet of the energy storage mechanism is partially shunted to the drainage mechanism so as to control the drainage mechanism to open for drainage. The closestool flushing device can effectively flush the closestool under the condition that the water pressure of tap water is low, and has the advantages of simple structure and small driving force.

Description

Toilet flushing device

Technical Field

The invention relates to a toilet flushing device.

Background

In the prior art, some toilet flushing devices directly flush the inner wall surface of the toilet by using the water outlet of the water inlet mechanism, and the water outlet pressure of the water inlet mechanism is related to the water pressure of tap water, so that when the water pressure of the tap water is insufficient, the toilet flushing effect is often poor. In addition, above-mentioned toilet flushing device still is equipped with the drainage mechanism that is used for controlling the rivers of water tank to the injection passage of closestool usually, and drainage mechanism's starting structure and the starting structure of mechanism of intaking adopt mechanical transmission usually to reach and open the purpose that also can open drainage mechanism in linkage to the mechanism of intaking, but adopt mechanical transmission's mode between the two, the structure is more complicated, and the starting force value is great.

Disclosure of Invention

The invention aims to provide a novel toilet flushing device which can effectively flush a toilet under the condition that the water pressure of tap water is low, and has simple structure and small driving force.

The technical scheme adopted by the invention is as follows: a toilet flushing device comprising:

a water tank;

the water inlet mechanism is arranged in the water tank, is provided with a water inlet channel, a first water outlet channel and a second water outlet channel, and also comprises a control valve used for controlling the water inlet channel to be communicated with the first water outlet channel or the second water outlet channel, and the first water outlet channel is communicated with the inner cavity of the water tank;

the energy storage mechanism is provided with a water inlet and a water outlet, the water inlet is communicated with the second water outlet channel, when the control valve controls the water inlet channel to be communicated with the second water outlet channel, water flows to the energy storage mechanism, is stored and pressurized by the energy storage mechanism and then flows out of the water outlet, and the water flow of the water outlet flows to a brush ring channel of the closestool so as to flush the inner wall surface of the closestool;

and the drainage mechanism is arranged in the water tank and used for controlling the water in the water tank to flow to the jet channel of the closestool so as to jet and flush the bottom of the closestool, and part of the water flow of the second water outlet channel is shunted to the drainage mechanism so as to control the drainage mechanism to open the drainage, or part of the water flow of the water outlet of the energy storage mechanism is shunted to the drainage mechanism so as to control the drainage mechanism to open the drainage.

According to the flushing device, the energy storage mechanism is arranged, so that water flowing out of the water inlet mechanism is pressurized by the energy storage mechanism, the flow rate of the water is increased, and then the water flows to the brush ring channel of the closestool, the inner wall surface of the closestool can be effectively flushed under the condition that the water pressure of tap water is low, and the flushing effect of the closestool is improved; in addition, the water flow flowing out of the energy storage mechanism can be used for controlling the opening of the drainage mechanism, so that the water flow with lower water pressure is pressurized and increased by the energy storage mechanism and then used for driving the drainage mechanism, and the drainage mechanism can be reliably opened. In addition, partial water flow which is divided by the second water outlet channel is adopted to directly drive the drainage mechanism or partial water which is pressurized by the energy storage mechanism is adopted to drive the drainage mechanism, the structure is simple, a mechanical structure for driving the drainage mechanism is not needed, during flushing, the driving force only needs to drive the water inlet mechanism to feed water, and the required driving force value is smaller.

Preferably, the control valve comprises a first backpressure control valve and a second backpressure control valve, and the water inlet mechanism further comprises a control floating barrel; the first control valve is arranged between the water inlet channel and the first water outlet channel, and the control floating barrel can rise or fall along with the water level in the water tank so that the first control valve controls the water inlet channel and the first water outlet channel to be cut off or communicated; the second control valve is arranged between the water inlet channel and the second water outlet channel and used for controlling the water inlet channel and the second water outlet channel to be cut off or communicated with each other, and the second control valve is controlled to be opened through a driving piece.

In the above scheme, the first water outlet channel is controlled to discharge water or stop water through the first control valve, the second water outlet channel is controlled to discharge water or stop water through the second control valve, the control is more flexible, the second control valve is opened without being controlled by the water level of the water tank, and the opening is directly controlled through the driving piece, so that the opening time can be flexibly designed according to needs.

Further preferably, the driving member moves from an initial position to a position for opening the second control valve, and is in limit fit with the control floating barrel in a floating position, and after the control floating barrel falls down, the driving member resets to the initial position so that the second control valve is closed.

In the above scheme, carry on spacingly through control keg float to the driving piece for the drive the external force of driving piece is removed the back, and the second control valve also can be at the opening state of the effect downwardly extending time default time of driving piece, keeps the play water control of certain time, simple structure, the function is reliable.

Further preferably, the water level control device further comprises a limiting floating barrel, the limiting floating barrel can ascend or descend along with the water level in the water tank, the driving piece is in limiting fit with the limiting floating barrel at the floating position when moving from the initial position to the position for opening the second control valve, and after the limiting floating barrel descends, the driving piece resets to the initial position so that the second control valve is closed.

In the above-mentioned scheme, carry on spacingly to the driving piece through the spacing keg float that is independent of control keg float for the drive the external force of driving piece is removed the back, and the second control valve also can be at the open mode of the effect downwardly extending time-lapse default time of driving piece, keeps the play water control of a certain time, simple structure, the function is reliable.

More preferably, the driving piece with be equipped with the locating part between control keg float or the spacing keg float, control keg float or spacing keg float pass through the locating part is right the driving piece carries on spacingly or steps down, control keg float or drive when spacing keg float goes up the locating part activity extremely can be right the driving piece carries out spacing limiting position, control keg float or drive when spacing keg float falls the locating part activity extremely can be right the driving piece carries out the position of stepping down.

In the above scheme, through setting up the locating part that can move about between the limiting position and the position of stepping down, make locating part and driving piece spacing cooperation or step down the position cooperation mutually to the realization is to the control of driving piece, simple structure, the function is reliable.

Preferably, the first control valve includes a first valve seat having a first valve port, a first elastic valve plate cooperating with the first valve port in an opening and closing manner, a first back pressure chamber, a first pressure relief port communicating with the first back pressure chamber, and a first link lever for opening and closing the first pressure relief port, and the water inlet passage communicates with the first water outlet passage through the first valve port;

the second control valve comprises a second valve seat with a second valve port, a second elastic valve plate matched with the second valve port in an opening and closing mode, a second back pressure cavity, a second pressure relief port communicated with the second back pressure cavity and a second connecting rod used for opening and closing the second pressure relief port, and the water inlet channel is communicated with the second water outlet channel through the second valve port.

Preferably, the drainage mechanism includes:

the drainage body is provided with a drainage port communicated with the inner cavity of the water tank;

a drain valve core movably disposed in the drain body and having a sealing portion for opening and closing the drain port;

the lifting piece is movably arranged on the drainage main body and is provided with a driving part in transmission fit with the drainage valve core;

a bladder disposed on the drainage body, the bladder being capable of expanding or contracting;

when part of water which is shunted out from the second water outlet channel or part of water which is shunted out from the water outlet of the energy storage mechanism flows into the capsule, the capsule expands to drive the water drainage valve core to open the water outlet through the lifting piece.

More preferably, after the water flow of the second water outlet channel or the water flow of the water outlet of the energy storage mechanism stops entering the bag body, the water drainage valve core drives the lifting piece to further drive the bag body to shrink through the lifting piece when resetting, and when the bag body shrinks, the water flow in the bag body flows to the brush ring channel of the toilet.

More preferably, the drainage mechanism further comprises a float movably arranged in the drainage body, the float floats upwards to a first position and can limit the lifted drainage valve core so that the drainage valve core is kept open to the drainage outlet, and the float falls to a second position and steps down the drainage valve core so that the drainage valve core can fall and close the drainage outlet.

More preferably, the lifting piece is a swing rod arranged in the drainage main body in a swinging mode, and one end, far away from the driving portion, of the lifting piece is a transmission portion in transmission fit with the capsule body.

Preferably, the energy storage mechanism is arranged in the water tank, and the energy storage mechanism comprises:

the energy storage body is provided with the water inlet, the water outlet, an energy storage cavity, an overflowing channel for communicating the water inlet and the water outlet, and a main valve port for communicating the energy storage cavity and the water outlet, wherein the water inlet is communicated with the energy storage cavity;

the main control valve comprises a main valve core which is movably arranged in the energy storage body and matched with the main valve port;

the pilot-operated auxiliary control valve is arranged in the overflowing channel and used for opening and closing the overflowing channel;

the elastic energy storage assembly is movably arranged in the energy storage cavity;

when the water inlet is not in a water inlet state, the main valve core closes the main valve port;

when water enters the water inlet, water flows into the energy storage cavity by overcoming the elastic force of the elastic energy storage assembly and drives the elastic energy storage assembly to enable the elastic energy storage assembly to store energy, the pilot type auxiliary control valve is closed or keeps closing the overflowing channel under the action of water pressure difference, when the elastic energy storage assembly moves to a preset position, the elastic energy storage assembly is linked to open the pressure relief opening of the pilot type auxiliary control valve so as to open the overflowing channel, so that one side of the main valve core, which is back to the energy storage cavity, is subjected to the action of water pressure to open the main valve opening, and then the water in the energy storage cavity is discharged from the main valve opening under the action of the elastic energy storage assembly and flows out of the water outlet together with the water in the water inlet.

In the above scheme, when the control valve controlled the passageway of intaking with when the second passageway of going out is linked together, energy storage mechanism's water inlet begins to intake, the rivers of water inlet are saved earlier in energy storage mechanism's energy storage chamber, after the water in the energy storage chamber deposits the predetermined amount, when elasticity energy storage subassembly moved to preset position, the vice control valve of linkage leading formula opened and overflows the passageway, thereby open the main valve mouth, make the hydroenergy in the energy storage chamber flow from the delivery port together with the water of water inlet via the main valve mouth, improved from the delivery port rivers pressure and the rivers flow, realize carrying out the energy storage pressurization to rivers from this, simple structure, design benefit, the function is reliable. In addition, the energy storage mechanism adopts the pilot-operated auxiliary control valve, so that the pilot-operated auxiliary control valve can be opened smoothly with small acting force, and the function is more reliable.

Further preferably, the elastic energy storage assembly comprises a piston and a second elastic piece acting on the piston, the piston comprises a piston head and a piston rod, a sealing piece is arranged on the piston head, the piston head forms dynamic seal with the inner wall of the energy storage cavity through the sealing piece, the piston head seals and isolates the energy storage cavity into a first cavity and a second cavity, the first cavity is communicated with the water inlet and the main valve port, and the second cavity is communicated with the outside. In the above scheme, the elastic energy storage assembly is simple in structure.

Preferably, the elastic energy storage assembly opens a pressure relief opening of the pilot-operated auxiliary control valve through transmission of a transmission mechanism, an auxiliary valve opening is formed on the overflow channel, the pilot-operated auxiliary control valve comprises an auxiliary valve cover and an auxiliary valve core matched with the auxiliary valve opening, a back pressure cavity is formed between the auxiliary valve core and the auxiliary valve cover, the pressure relief opening is communicated with the back pressure cavity, the back pressure cavity is communicated with the water inlet through a through flow groove, when the pressure relief opening is opened, the auxiliary valve core opens the auxiliary valve opening under the action of water pressure of inlet water, and when the pressure relief opening is closed, the auxiliary valve core closes the auxiliary valve opening under the action of water pressure difference applied to two sides of the auxiliary valve core.

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 top plan view of a toilet flushing device according to a preferred embodiment of the present invention;

FIG. 2 is an assembly schematic diagram of the water intake mechanism, the water discharge mechanism and the energy storage mechanism according to a preferred embodiment of the present invention;

FIG. 3 is an exploded perspective view of the water intake mechanism in accordance with a preferred embodiment of the present invention;

FIG. 4 is an overall assembly view of a water intake mechanism according to a preferred embodiment of the present invention;

FIG. 5 is a perspective cross-sectional view of a water intake mechanism in accordance with a preferred embodiment of the present invention;

FIG. 6 is a side view of a water intake mechanism in accordance with a preferred embodiment of the present invention;

FIG. 7 is a top view of a water intake mechanism according to a preferred embodiment of the present invention;

FIG. 8 is a partial perspective view of a water intake mechanism with a first control valve in accordance with a preferred embodiment of the present invention;

FIG. 9 is a partial perspective view of the water intake mechanism with a second control valve in accordance with a preferred embodiment of the present invention;

FIG. 10 is a perspective view of a second link (driving member) of the water intake mechanism in accordance with a preferred embodiment of the present invention;

FIG. 11 is a sectional view of the first control valve of the water inlet mechanism in an unopened state in accordance with a preferred embodiment of the present invention;

FIG. 12 is a sectional view of a second control valve of the water intake mechanism in an unopened state in accordance with a preferred embodiment of the present invention;

FIG. 13 is a sectional view of a second control valve of the water inlet mechanism in an open state in accordance with a preferred embodiment of the present invention;

FIG. 14 is a bottom view of the water intake mechanism of a preferred embodiment of the present invention;

FIG. 15 is a structural view of a control tank and a small tank in accordance with a preferred embodiment of the present invention;

FIG. 16 is a cross-sectional view of a control tank and a small tank in accordance with a preferred embodiment of the present invention;

FIG. 17 is a perspective assembly view of the energy storage mechanism in accordance with a preferred embodiment of the present invention;

FIG. 18 is a cross-sectional view of one of the sections of the energy storage mechanism of a preferred embodiment of the present invention with the inlet just beginning to admit water and the pressure relief vent in a closed position;

FIG. 19 is a cross-sectional view of another section of the stored energy mechanism in the condition of FIG. 18;

FIG. 20 is a cross-sectional view of one of the sections of the stored energy mechanism of a preferred embodiment of the present invention with the pressure relief vent in an open position;

FIG. 21 is a cross-sectional view of another section of the stored energy mechanism as in the condition of FIG. 20;

FIG. 22 is a partially exploded perspective view of the stored energy mechanism of a preferred embodiment of the present invention;

FIG. 23 is a cross-sectional view of one of the cross-sections of FIG. 22;

FIG. 24 is a cross-sectional view of another section of FIG. 22;

FIG. 25 is one of the assembled cross-sectional views of FIG. 22;

FIG. 26 is a second assembled cross-sectional view of FIG. 22;

FIG. 27 is a perspective view of a drain mechanism according to a preferred embodiment of the present invention;

FIG. 28 is an exploded view of the drain mechanism of a preferred embodiment of the present invention;

FIG. 29 is a perspective view of the housing of the drain mechanism in accordance with a preferred embodiment of the present invention;

FIG. 30 is one of the cross-sectional views of the drain mechanism of a preferred embodiment of the present invention, shown in an initial state;

FIG. 31 is a second cross-sectional view of the drain mechanism of the preferred embodiment of the present invention, wherein the lifting member drives the drain valve core to move upward to open the drain;

FIG. 32 is a third cross-sectional view of a drain mechanism in accordance with a preferred embodiment of the present invention, with the float lowered;

FIG. 33 is a fourth cross-sectional view of the drain mechanism of a preferred embodiment of the present invention, wherein the drain spool falls to return the pull-up member and compress the bladder.

The reference numbers in the figures are respectively:

100-a water tank; 200-a water inlet mechanism; 300-a drainage mechanism; 400-an energy storage mechanism;

water inlet mechanism 200:

10-a water inlet body; 11-an upper body; 111-a gland; 12-a lower body; 121-a water inlet pipe; 13-a water inlet channel; 14-a first water outlet channel; 15-a second water outlet channel; 16-water tank outlet; 17-water replenishing port; 18-anti-siphon mouth; 19-a pressurized water outlet; 20-a first control valve; 21-a first valve seat; 211-a first valve port; 22-a first resilient valve plate; 23-a first back pressure chamber; 24-a first pressure relief vent; 25-a first link; 30-a second control valve; 31-a second valve seat; 311-second valve port; 32-a second elastic valve plate; 33-a second back pressure chamber; 34-a second pressure relief vent; 35-second link (drive); 351-second barbs; 36-plug; 37-an elastic member;

40-controlling the floating barrel; 41-control the water tank; 50-limiting floating barrel; 60-pulling a rope; 70-a stop; 71-first barbs; 80-a small water tank; 81-a water drainage port; 82-an adjustment member; 90-filter.

The drainage mechanism 300:

1-a linker; 2-a cover body; 3-capsule body; 4-lifting the piece; 401-a transmission; 402-a drive section; 5-a movable plug; 6-a shell; 601-compartment; 602-a working chamber; 603-water inlet holes; 7-a valve stem; 701-a jack; 702-a card position part; 8-a modulator; 9-a sealing gasket; 10-sealing disc; 11 a-overflow; 12 a-a buoy; 1201-a limiting part; 13 a-a base; 1301-a water outlet;

the energy storage mechanism 400:

10 '-energy storage body, 10a' -main body; 10b' -a top cap; 11 '-water inlet, 12' -water outlet; 13' -an energy storage cavity; 131' -a first cavity; 132' -a second lumen; 14' -an overflow channel; 141' -side valve port; 15' -main valve port; 17' -a water inlet channel; 171' -a first outlet end; 172' -a second outlet end; 18' -a channel guide;

20' -a main control valve; 21' -main spool; 211' -guide rods; 22' -a first elastic member;

30' -an elastic energy storage component; 31' -a piston; 311' -a piston head; 312' -a piston rod; 32' -a second elastic member; 33' -a seal; 34' -a skin sac;

40' -a pilot type auxiliary control valve; 41' -an auxiliary valve core; 42' -the secondary valve cover; 421 '-pressure relief port, 43' -back pressure chamber; 44' -a flow through groove;

50' -a transmission mechanism; 51' -a swing lever; 52' -a push rod; 53' -a rotating shaft; 54' -lifting rod; 541' -back pressure pad; 55' -third elastic member.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention clearer and clearer, the present 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 merely illustrative of the invention and are not intended to limit the invention.

In the following discussion, details are given to provide a more thorough understanding of the present invention. One skilled in the relevant art will recognize, however, that the invention can be practiced without one or more of the specific details. In certain instances, well known features have not been described in detail in order not to obscure the invention. It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like are used herein for purposes of illustration only and are not to be construed as limiting.

Ordinal words such as "first" and "second" are referred to herein merely as labels, and do not have any other meaning, such as a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".

Referring to fig. 1 and 2, a toilet flushing apparatus according to an embodiment of the present invention includes a water tank 100, a water inlet mechanism 200, a water outlet mechanism 300, and an energy storage mechanism 400.

The water inlet mechanism 200 is disposed in the water tank 100, and has a water inlet channel 13, a first water outlet channel 14, a second water outlet channel 15, and a control valve for controlling the water inlet channel 13 to be communicated with the first water outlet channel 14 or the second water outlet channel 15, and the first water outlet channel 14 is communicated with an inner cavity of the water tank 100.

The energy storage mechanism 400 is provided with a water inlet 11' and a water outlet 12', the water inlet 11' is communicated with the second water outlet channel 15, when the control valve of the water inlet mechanism 200 controls the water inlet channel 13 to be communicated with the second water outlet channel 15, water flows to the energy storage mechanism 400, is stored and pressurized by the energy storage mechanism 400 and then flows out from the water outlet 12', and water flows from the water outlet 12' flows to a brush ring channel (not shown) of the toilet bowl so as to flush the inner wall surface of the toilet bowl. The outlet of the brush ring channel of the toilet can be arranged at the upper edge of the toilet bowl, and also can be arranged on the inner side wall of the toilet bowl, and the specific arrangement position is selected according to different types of toilets.

A drain mechanism 300 provided in the water tank 100 for controlling the flow of water in the water tank 100 to a spray passage (not shown) of the toilet to spray-flush the bottom of the toilet; the water flow at the water outlet 12' of the energy storage mechanism 400 is divided into two streams, one stream is divided to the brush ring channel of the toilet to flush the inner wall surface of the toilet, and the other stream is divided to the drainage mechanism 300 to control the drainage mechanism 300 to open for drainage.

By arranging the energy storage mechanism 400, water flowing out of the water inlet mechanism 200 is pressurized by the energy storage mechanism 400, increases the flow rate and then flows to a brush ring channel of the toilet, so that the inner wall surface of the toilet can be effectively flushed under the condition that the water pressure of tap water is low, and the effect of flushing the toilet is improved; in addition, the water flow flowing out of the energy storage mechanism 400 is also used for controlling the opening of the drainage mechanism 300, the water flow with lower water pressure is pressurized and increased through the energy storage mechanism 400 and then used for driving the drainage mechanism 300, the drainage mechanism 300 can be reliably opened, and the mode that the water flow at the water outlet of the energy storage mechanism 400 is divided to the drainage mechanism 300 to control the drainage mechanism 300 to open and drain is particularly suitable for the areas with lower water pressure. In addition, the drainage mechanism 300 is controlled to be opened by utilizing the water flow of the water inlet mechanism 200, the structure is simple, a mechanical structure for driving the drainage mechanism 300 is not required, and the required driving force value is small as long as the water inlet mechanism 200 can be driven to inlet water during flushing.

When the toilet is in operation, a starting switch (not shown) is operated, the starting switch can be a button switch, a wrench switch, a touch switch or an induction switch and the like, the starting switch controls the water inlet mechanism 200 to open water inlet, water in the water inlet channel 13 is firstly communicated with the second water outlet channel 15, water flows to the energy storage mechanism 400 through the second water outlet channel 15, and after the energy storage mechanism 400 stores energy and pressurizes the water and increases the flow rate, a part of water flows to a brush ring channel of the toilet to flush the inner wall surface of the toilet; meanwhile, the other part of the water after being pressurized and increased in flow rate by the energy storage mechanism 400 flows to the drainage mechanism 300 to control the drainage mechanism 300 to open and drain; until the water level in the water tank 100 drops to a level that causes the control valve of the water inlet mechanism 200 to switch to communicate the water inlet channel 13 with the first water outlet channel 14, the first water outlet channel 14 directs the flow of water into the inner cavity of the water tank 100 to fill the water tank 100 with water. When the water in the water tank 100 is filled, the control valve of the water inlet mechanism 200 controls the water inlet channel 13 to be disconnected from the first water outlet channel 14 and the second water outlet channel 15, and the water inlet mechanism 100 stops water inlet.

In other alternative embodiments, a part of the water flow of the second water outlet channel 15 of the water inlet mechanism 200 may be diverted directly to the water discharge mechanism 300 to control the water discharge mechanism 300 to open the water discharge, that is, the water in the second water outlet channel 15 is diverted to the water discharge mechanism 300 without being stored and pressurized by the energy storage mechanism 400, so that the water discharge mechanism 300 can be opened, which is more suitable for the situation that the water inlet pressure of the water inlet mechanism 200 is normal or large.

The following description will be made of specific structures of the water inlet mechanism 200, the energy storage mechanism 400, and the water discharge mechanism 300 of the present embodiment:

in the first embodiment, the water inlet mechanism 200 preferably has the following structure:

referring to fig. 3 to 12, fig. 3 to 12 show a water inlet mechanism of a preferred embodiment of the present invention, which is disposed in a water tank 100 and includes a water inlet body 10, a water inlet channel 13, a first water outlet channel 14, a second water outlet channel 15, a first control valve 20 of a back pressure type, a second control valve 30 of a back pressure type, and a control float 40. The first control valve 20 and the second control valve 30 are conventional in the art, and use the pressure difference of water to open water inlet and close water stop.

Specifically, the first control valve 20 includes a first valve seat 21 having a first valve port 211, a first elastic valve plate 22 opening and closing the first valve port 211, a first back pressure chamber 23, a first pressure relief port 24 communicating with the first back pressure chamber 23, and a first connecting rod 25 for opening and closing the first pressure relief port 24, the water inlet channel 13 communicates with the first water outlet channel 14 through the first valve port 211, and the first valve port 211 is closed or opened by a pressure difference of water of the first elastic valve plate 22. The second control valve 30 includes a second valve seat 31 having a second valve port 311, a second elastic valve sheet 32 opening and closing the second valve port 311, a second back pressure chamber 33, a second pressure relief port 34 communicating with the second back pressure chamber 33, and a second connecting rod 35 for opening and closing the second pressure relief port 34, the water inlet channel 13 communicates with the second water outlet channel 15 through the second valve port 311, and the second valve port 311 is closed or opened by the pressure difference of water of the second elastic valve sheet 32. Here, since a back pressure type control valve is a known technique, the operation principle thereof will not be described in detail.

The first control valve 20 is disposed between the water inlet channel 13 and the first water outlet channel 14, and the control float 40 can rise or fall with the water level in the water tank 100 so that the first control valve 20 controls the water inlet channel 13 and the first water outlet channel 14 to be cut off or communicated with each other. In this embodiment, a control water tank 41 for accommodating the control float 40 is provided.

The second control valve 30 is disposed between the water inlet channel 13 and the second water outlet channel 15 and used for controlling the water inlet channel 13 and the second water outlet channel 15 to be cut off or communicated with each other, the second control valve 30 is controlled to be opened by a driving member 35, and the movement of the driving member 35 is controlled by a start switch.

According to the water inlet mechanism of the present invention, by providing the first control valve 20 and the second control valve 30, the first control valve 20 can be used to control the water supply to the water tank 100, the second control valve 30 is used to control the water supply to the brush passage of the toilet and the water discharge mechanism 300, and the opening of the second control valve 30 is not controlled by the water level of the water tank 100, and the second control valve 30 is controlled to be opened by the driving member 35, so that the opening timing thereof can be flexibly designed as required.

In this embodiment, a limiting floating barrel 50 is further included, the limiting floating barrel 50 can rise or fall with the water level in the water tank 100, the driving member 35 is in limiting fit with the limiting floating barrel 50 in the floating position when moving from the initial position to the position for opening the second control valve 30, and after the limiting floating barrel 50 falls, the driving member 35 is reset to the initial position so as to close the second control valve 30. The limit floating barrel 50 independent of the control floating barrel 40 is arranged to limit the driving piece 35, so that after the external force for driving the driving piece 35 is removed, the second control valve 30 can be in an opening state with preset time under the action of the driving piece 35, and the water outlet control for a certain time is kept.

In this embodiment, the floating device further comprises a small water tank 80 for accommodating the limiting floating barrel 50, water in the water tank 100 flows into the small water tank 80 through an opening at the top end of the small water tank 80, a water discharge opening 81 is arranged at the bottom of the small water tank 80, and an adjusting member 82 for adjusting the size of the through-flow section of the water discharge opening 81 is arranged at the water discharge opening 81. The size of the through-flow section of the water discharge opening 81 is adjusted through the adjusting piece 82, and the water discharge time of the small water tank 80 is controlled, so that the falling time of the limiting floating barrel 50 is controlled, the opening time of the second control valve 30 is further controlled, and the device is simple in structure and reliable in control. The small water tank 80 of the present embodiment is integrally provided with the control water tank 41.

In this embodiment, a limiting member 70 is disposed between the driving member 35 and the limiting floating bucket 50, the limiting floating bucket 50 limits or abduces the driving member 35 through the limiting member 70, the limiting member 70 is driven to move to a limiting position capable of limiting the driving member 35 when the limiting floating bucket 50 floats, and the limiting member 70 is driven to move to an abducent position capable of abduceing the driving member 35 when the limiting floating bucket 50 falls. Through the limiting part 70 which can move between the limiting position and the yielding position, the limiting part 70 is in limiting fit or yielding fit with the driving part 35, so that the driving part 35 is controlled, and the structure is simple and the function is reliable.

Specifically, please refer to fig. 3, fig. 5, fig. 12 and fig. 13, in this embodiment, one end of the limiting member 70 is connected to the limiting floating barrel 50, the other end of the limiting member is provided with a first barb 71, the second connecting rod 35 is provided with a second barb 351 matched with the first barb 71, when the limiting floating barrel 50 floats, the first barb 71 is located at a position where the limiting member can be matched with the second barb 351 in a limiting manner, and when the limiting floating barrel 50 falls, the first barb 71 is located at a position where the second barb 351 yields. The matching structure of the limiting member 70 and the second connecting rod 35 is simple, and the limiting and abdicating matching between the two is reliable.

Referring to fig. 3, 5, 12 and 13, in this embodiment, a plug 36 is movably disposed at the second pressure relief opening 34, the plug 36 closes the second pressure relief opening 34 under the action of an elastic member 37, and the elastic member 37 is specifically a compression spring which is elastically pressed between the plug 36 and the second valve seat 31. The second connecting rod 35 is in linkage fit with the plug 36, when the second connecting rod 35 is driven, the second connecting rod 35 overcomes the elastic force of the elastic component 37 to drive the plug 36 to open the second pressure relief opening 34, so as to control the second control valve 30 to open, and the second connecting rod 35 is a driving component 35. The second pressure relief opening 34 is opened and closed by the plug 36, the plug 36 can seal the second pressure relief opening 34 under the action of the elastic element 37, the second connecting rod 35 serving as the driving element 35 opens the second pressure relief opening 34 by driving the plug 36, and the pressure relief valve is simple in structure and reliable in function.

In this embodiment, the water inlet mechanism 200 further includes a water outlet 16 for supplying water to the water tank 100, a water replenishing port 17 for supplying water to the toilet water, a siphon preventing port 18 communicated with the outside air, and a pressure water outlet 19 for supplying pressure water to an external waterway outside the water inlet mechanism 200, wherein the water flow of the first water outlet channel 14 is divided to the water outlet 16, the water replenishing port 17 and the siphon preventing port 18, and the water flow of the second water outlet channel 15 flows to the pressure water outlet 19. The pressure water outlet 19 is communicated with the water inlet 11' of the energy storage mechanism 400.

In this embodiment, the water inlet body 10 includes an upper body 11 and a lower body 12, the lower body 12 further includes an axially extending water inlet pipe 121 formed with a water inlet passage 13, the first control valve 20 and the second control valve 30 are located at a side of the water inlet pipe 121, a press cover 111 is disposed at a top of the water inlet pipe 121, a through hole communicated with the water inlet passage 13 is formed in the press cover 111, a filter 90 is hermetically installed at the through hole, water flowing through the water inlet passage 13 flows to the first control valve 20 and the second control valve 30 after being filtered by the filter 90, and an anti-siphon port 18 communicated with the first water outlet passage 14 is further formed on the press cover 111. The whole layout of the water inlet mechanism is reasonable, and the whole structure is compact.

In this embodiment, the start switch drives the driving element 35 to swing through the pull rope 60, and the driving element 35 further drives the plug 36 to open the second pressure relief port 24, so that the second control valve 30 is opened to let water enter.

The working process of this embodiment is specifically as follows:

referring to fig. 12, at this time, the water tank 100 is at a full water level, the control float 40 in the control water tank 41 is in a floating state, the first link 25 closes the first pressure relief opening 24, and the first resilient valve sheet 22 closes the first valve port 211 under the action of water pressure, so that the communication between the water inlet channel 13 and the first water outlet channel 14 is cut off.

When the water level of the water tank 100 falls to a preset height and the water level in the control water tank 41 falls to the control floating barrel 40 and the buoyancy of the control floating barrel 40 is insufficient, the control floating barrel 40 falls, the control floating barrel 40 further drives the first connecting rod 25 to open the first pressure relief opening 24, so that the pressure of the first back pressure cavity 23 is relieved, the first elastic valve plate 22 opens the first valve port 211 under the action of the water inlet channel 13, so that the water inlet channel 13 and the first water outlet channel 14 are communicated, most of the water of the first water outlet channel 14 flows to the water tank water outlet 16 to enter the water tank 100, a small part of the water flows to the water replenishing opening 17 for replenishing water to the water seal of the toilet, and a small part of the water flows to the anti-siphon opening 18 and flows from the anti-siphon opening 18 to the water tank 100. The dashed line in fig. 12 is a schematic diagram of the flow of water when the first control valve 20 is opened for water supply.

Referring to fig. 12, at this time, in a state where the driving element 35 is not driven, the second elastic valve sheet 32 closes the second opening 311 under the action of the water pressure difference, and the position-limiting floating barrel 50 is at the floating position, so that the first barb 71 on the position-limiting element 70 is at a position capable of limiting the second barb 351 on the driving element 35.

Referring to fig. 13, in the state of fig. 12, the start switch is operated, the start switch pulls the driving element 35 through the pulling rope 60, the driving element 35 further drives the plug 36 to open the second pressure relief port 34 against the elastic force of the elastic element 37, so that the second back pressure chamber 33 is relieved, the second elastic valve sheet 32 opens the second valve port 311 under the action of the water inlet channel 13, so as to communicate the water inlet channel 13 and the second water outlet channel 15, a part of the water of the second water outlet channel 15 flows to the brush ring channel of the toilet after being pressurized and increased by the energy storage mechanism 400, and the other part of the water flows to the drainage mechanism 300 to open the drainage mechanism 300 for drainage. After the driving member 35 is driven, the second barbs 351 on the driving member 35 are in spacing fit with the first barbs 71 on the limiting member 70, and since the limiting floating barrel 50 is in the floating position, the driving member 35 is kept at the position for opening the second control valve 30 under the effect of the spacing fit of the second barbs 351 and the first barbs 71, so that the second control valve 30 can be in an opening state for a period of time, so as to provide a sufficient amount of pressure water to the external water path (the brush ring channel and the drainage mechanism 300 of the toilet). Until the water in the water tank 100 falls to the preset position, the water in the small water tank 80 also falls to the buoyancy of the limiting floating barrel 50 through the drain opening 81 when not enough, the limiting floating barrel 50 falls and drives the limiting 70 to swing, so that the first barb 71 gives way to the second barb 351, the driving piece 35 loses the limiting effect of the limiting floating barrel 50 and does not apply an acting force to the plug 36 any more, the plug 36 resets under the effect of the elastic piece 37 and closes the second pressure relief opening 34, the second control valve 30 is closed, and the driving piece 35 is driven to reset in the resetting process of the plug 36.

In the second embodiment of the present invention, the limit float 50 may not be provided, and the control float 40 may be directly used to limit the driving member 35 at the open water inlet position. Specifically, the driving member 35 moves from the initial position to a position for opening the second control valve 30, and is in limit fit with the control float 40 in the floating position, and after the control float 40 falls, the driving member 35 is reset to the initial position so as to close the second control valve 30. Carry on spacingly to driving piece 35 through control keg float 40 for the back is removed to the external force of drive driving piece 35, and second control valve 30 also can be in the opening state of the effect downwardly extending default time of driving piece 35, keeps the play water control of certain time.

Similar to the first embodiment, the floating barrel control device further comprises a small water tank 80 for accommodating the control floating barrel 40, water in the water tank 100 flows into the small water tank 80 through the top end opening of the small water tank 80, a water discharge opening 81 is arranged at the bottom of the small water tank 80, and an adjusting piece 82 for adjusting the size of the through-flow section of the water discharge opening 81 is arranged at the water discharge opening 81. The adjusting piece 82 is used for adjusting the size of the through-flow section of the water discharge opening 81 and controlling the water discharge time of the small water tank 80, so that the falling time of the floating barrel 40 and the opening time of the second control valve 30 are controlled, the structure is simple, and the control is reliable.

Similar to the first embodiment, a limiting member 70 is disposed between the driving member 35 and the control floating barrel 40, the control floating barrel 40 limits or abdicates the driving member 35 through the limiting member 70, the limiting member 70 is driven to move to a limiting position capable of limiting the driving member 35 when the control floating barrel 40 floats upwards, and the limiting member 70 is driven to move to an abdicating position capable of abdicating the driving member 35 when the control floating barrel 40 falls down. Through setting up the locating part 70 that can move about between limiting position and the position of stepping down, make locating part 70 and driving piece 35 limit mutually the cooperation or step down mutually the cooperation to realize the control to driving piece 35, simple structure, the function is reliable.

In the embodiment, the energy storage mechanism 400 preferably has the following structure:

referring to fig. 17 to 26, the energy storage mechanism includes an energy storage body 10', a main control valve 20', an elastic energy storage assembly 30', a pilot-type sub-control valve 40', and a transmission mechanism 50'.

The energy storage body 10 'is provided with a water inlet 11', a water outlet 12', an energy storage cavity 13', an overflowing channel 14 'for communicating the water inlet 11' with the water outlet 12', a main valve port 15' for communicating the energy storage cavity 13 'with the water outlet 12', and a water inlet 11 'communicated with the energy storage cavity 13'. Main control valve 20 'includes a main spool 21' movably disposed within accumulator body 10 'and cooperating with main valve port 15'. The elastic energy storage component 30 'is movably arranged in the energy storage cavity 13'. The pilot-operated sub-control valve 40' is provided in the transfer passage 14' to open and close the transfer passage 14'.

In the non-water-feeding state of the water inlet 11', the main valve element 21' closes the main valve opening 15', and at this time, the secondary control valve 40' can selectively close the overflow channel 14 'or open the overflow channel 14', preferably so that the secondary control valve 40 'closes the overflow channel 14'. When water enters the water inlet 11', the water flows into the energy storage cavity 13' by overcoming the elastic force of the elastic energy storage assembly 30' and drives the elastic energy storage assembly 30' to store energy in the elastic energy storage assembly 30', and the pilot-operated auxiliary control valve 40' closes or keeps closing the overflow channel 14' under the action of the water pressure difference, when the elastic energy storage assembly 30' moves to a preset position, the elastic energy storage assembly 30' is linked to open the pressure relief port 421' of the pilot-operated auxiliary control valve 40' to open the overflow channel 14', so that the side, opposite to the energy storage cavity 13', of the main valve core 21' is subjected to the action of water pressure to open the main valve port 15', and further the water in the energy storage cavity 13' is discharged from the main valve port 15' under the action of the elastic energy storage assembly 30' and flows out from the water outlet 12' together with the water in the water inlet 11', so that the water flow pressure and the water flow rate flowing out of the water outlet 12' are effectively improved.

Specifically, in the embodiment, the energy storage body 10 'includes a main body 10a' and a top cover 10b ', an energy storage cavity 13' is formed in the main body 10a ', a water inlet passage 17' is formed in the top cover 10b ', and an overflow passage 14', a water inlet 11', a water outlet 12' and a main valve port 15 'are formed in the top cover 10 b'. The water inlet 11' forms a water inlet end of the water inlet channel 17', the water outlet end of the water inlet channel 17' is divided into a first water outlet end 171' and a second water outlet end 172', the second water outlet end 172' is communicated with the energy storage cavity 13', and the water inlet 11' is communicated with the energy storage cavity 13' through the water inlet channel 17' and the second water outlet end 172 '. The first outlet end 171 'is communicated with the overflow channel 14', and the inlet 11 'is communicated with the overflow channel 14' through the inlet channel 17 'and the first outlet end 171'.

In this embodiment, when the water inlet 11' is not filled with water, the elastic energy storage assembly 30' abuts against the main valve element 21' so that the main valve element 21' closes the main valve port 15'; when the water inlet 11 'is filled, the main valve element 21' is kept closed to the main valve port 15 'under the action of water pressure when the elastic energy storage assembly 30' is not moved to a predetermined position, so that the main valve element 21 'can close the main valve port 15' during the water storage process of the energy storage mechanism, thereby preventing the water flow entering the energy storage chamber 13 'from flowing out of the main valve port 15'.

When the overflow channel 14' is open, the manner of automatically opening the main valve port 15' by the main valve element 21' may be designed as required, for example: the main valve spool 21' is used to open the main valve port 15' under the action of external force acting on the main valve spool 21', or the main valve spool 21' opens the main valve port 15' under the action of self gravity, and the like. Specifically, when the bypass passage 14' is opened, the side of the main valve element 21' facing away from the energy storage chamber 13' is subjected to water pressure, and when the water pressure on the side of the main valve element 21' facing away from the energy storage chamber 13' is equal to or less than the water pressure on the side of the main valve element 21' located in the energy storage chamber 13', the main valve element 21' can automatically open the main valve port 15' by an external force acting on the main valve element 21' or by the self-weight of the main valve element 21'. The specific manner of opening the main valve port 15 'by the main valve element 21' may be designed as desired and is not limited to the above-described embodiment.

Specifically, in this embodiment, the main control valve 20 'includes a first elastic member 22' acting on the main valve element 21', and the main valve element 21' overcomes the elastic force of the first elastic member 22 'during the process of closing the main valve port 15', that is, when the main valve element 21 'closes the main valve port 15', the first elastic member 22 'is in an elastic deformation state to apply an elastic force to the main valve element 21', and at this time, the elastic force applied to the main valve element 21 'by the first elastic member 22' is smaller than the water inlet pressure of the side of the energy storage mechanism 13 'to the main valve element 21', so as to ensure that the main valve element 21 'keeps closing the main valve port 15' under the action of the water inlet pressure. When the flow passage 14 'is opened, the resultant force of the elastic force exerted by the first elastic member 22' on the main valve element 21 'and the water pressure applied to the side of the main valve element 21' opposite to the energy storage mechanism 13 'is greater than the water pressure applied to the side of the main valve element 21' located on the energy storage mechanism 13', and the main valve element 21' opens the main valve port 15 'under the action of the external force provided by the first elastic member 22'. The main valve 21' automatically opens the main valve port 15' by the elastic external force provided by the first elastic member 22', and is more reliable.

In this embodiment, the elastic energy storage assembly 30 'includes a leather bag 34' with an opening at one end, the leather bag 34 'seals and separates the inner cavity of the energy storage cavity 13' into a first cavity 131 'and a second cavity 132', the portion of the energy storage cavity 13 'enclosed by the leather bag 34' forms the first cavity 131', the portion of the energy storage cavity 13' outside the leather bag 34 'forms the second cavity 132', the first cavity 131 'is communicated with the water inlet 11' and the main valve 15', the second cavity 132' is communicated with the outside, the main control valve 20 'is disposed in the first cavity 131', and the elastic energy storage assembly 30 'is disposed in the second cavity 132'. The elastic energy storage assembly 30 'comprises a piston 31' and a second elastic element 32 'acting on the piston 31', the piston 31 'comprises a piston head 311' and a piston rod 312', the open end of the leather bag 34' is fixedly connected with the opening of the energy storage cavity 13 'in a sealing mode, the piston head 311' is in abutting fit with the movable end, far away from the open end, of the leather bag 34', a Y-shaped sealing element 33' is arranged on the piston head 311', and the piston head 311' forms dynamic sealing through the sealing element 33 'and the inner wall of the energy storage cavity 13'.

In other embodiments, not illustrated, the bladder 34' may be absent: specifically, the elastic energy storage assembly 30 'comprises a piston 31' and a second elastic element 32 'acting on the piston 31', the piston 31 'comprises a piston head 311' and a piston rod 312', a sealing element 33' is arranged on the piston head 311', and the piston head 311' forms dynamic sealing with the inner wall of the energy storage cavity 13 'through the sealing element 33'. The piston head 311 'seals the energy storage chamber 13' into a first chamber 131 'and a second chamber 132', the first chamber 131 'communicating with the water inlet 11' and the main valve 15', and the second chamber 132' communicating with the outside.

In other embodiments not shown, it is also possible to replace: the leather bag 34' is designed to be open at two ends, the opening of one end of the leather bag 34' close to the main valve port 15' is fixedly connected with the energy storage body 10' in a sealing way, and the opening of one end of the leather bag 34' far away from the main valve port 15' is fixedly connected with the piston head 311' in a sealing way.

In this embodiment, the elastic energy storage assembly 30' opens the pressure relief opening 421' of the pilot-operated auxiliary control valve 40' through the transmission mechanism. The flow passage 14' is formed with an auxiliary valve port 141', the pilot-operated auxiliary control valve 40' includes an auxiliary valve cover 42' and an auxiliary valve core 41' engaged with the auxiliary valve port 141', the auxiliary valve core 41' is an elastic rubber pad, a back pressure chamber 43' is formed between the auxiliary valve core 41' and the auxiliary valve cover 42', the pressure relief port 421' is communicated with the back pressure chamber 43', the back pressure chamber 43' is communicated with the flow passage 14' on the side of the water inlet 11' through a flow passage 44' and further communicated with the water inlet 11', and the water flow of the water inlet 11' flows into the back pressure chamber 43' through the flow passage 14' and the flow passage 44 '. When the relief port 421' is opened, the sub-valve body 41' opens the sub-valve port 141' under the action of the pressure of the inlet water, and when the relief port 421' is closed, the sub-valve body 41' closes the sub-valve port 141' under the action of the pressure difference applied to both sides of the sub-valve body 41'. The operation principle of the pilot type sub control valve 40' using the pressure difference is well known in the art, and the operation principle thereof will not be described in detail herein.

Preferably, when the elastic energy storage assembly 30' loses the acting force on the transmission mechanism, the transmission mechanism closes the pressure relief opening 421' of the pilot-operated secondary control valve 40' under the action of gravity. In order to make the closing of the pressure relief opening 421' more reliable and timely, a third elastic member 55' may be further provided, and the third elastic member 55' acts on the push rod 52' to make the transmission mechanism 50' reset and close the pressure relief opening 421' after losing the action of the elastic energy storage assembly 30 '.

Preferably, as shown in fig. 17, 19 and 20, the transmission mechanism 50' includes a swing rod 51', a push rod 52' and a lifting rod 54', the swing rod 51' is swing-mounted on the sidewall of the energy storage cavity 13' through a rotating shaft 53', one end of the swing rod 51' is in linkage fit with the elastic energy storage assembly 30', the other end is in linkage fit with the push rod 52', the push rod 52' is in linkage fit with one end of the lifting rod 54', and the other end of the lifting rod 54' is in open-close fit with the pressure relief port 421' of the pilot-operated auxiliary control valve 40 '. The transmission mechanism is simple and reliable in transmission.

In order to make the overall layout of the energy storage mechanism reasonable, the structure compact, and the molding easy, in this embodiment, an energy storage cavity 13' is formed in the main body 10a ', an overflow channel 14', a water inlet 11', a water outlet 12', and a main valve port 15' are formed on the top cover 10b ', the main control valve 20' is installed in the main body 10a ', and the pilot-operated auxiliary control valve 40' is installed on the top cover 10b '. The top cover 10b ' is further provided with a guide groove 18', and the main valve core 21' is provided with a guide rod 211' which is in sliding guide fit with the guide groove 18 '.

In this embodiment, the first elastic member 22', the second elastic member 32', and the third elastic member 55' are compression springs. And the elastic force of the second elastic member 32 'is greater than that of the first elastic member 22'.

In use, initially, water is not supplied to the inlet port 11', at which time the main valve element 21' closes the main valve port 15' and the pilot-operated secondary control valve 40' closes the transfer passage 14'. Referring to fig. 18 and 19, when the water inlet 11' begins to fill, water flows into the energy storage chamber 13' against the elastic force of the elastic energy storage assembly 30', and the main valve element 21' keeps closing the main valve port 15' against the elastic force of the first elastic element 22' under the action of the water pressure in the energy storage chamber 13'. As the water flow continuously enters the energy storage cavity 13', the water flow drives the elastic energy storage assembly 30' to make the piston 31' of the elastic energy storage assembly 30' move downwards and compress the second elastic element 32' for storing energy. In this process, the secondary valve core 41 'of the pilot-operated secondary control valve 40' keeps closing the secondary valve port 141 'under the action of the water pressure difference on the two sides of the secondary valve core 41', and the overflow channel 14 'keeps a closed state, so that the water flow of the water inlet 11' cannot flow to the water outlet 12 'through the overflow channel 14'.

Referring to fig. 20 and 21, when the elastic energy storage assembly 30 'moves to a predetermined position, the piston rod 312' of the elastic energy storage assembly 30 'starts to abut against one end (i.e., the left end in fig. 20) of the swing rod 51' of the transmission mechanism 50 'downward, so as to drive the swing rod 51' to swing, the other end (i.e., the right end in fig. 20) of the swing rod 51 'moves upward and drives the push rod 52' to move upward against the force of the third elastic element 55', the push rod 52' drives the lifting rod 54 'to lift up, so that the back pressure pad 541' provided on the lifting rod 54 'opens the pressure relief port 421', and the auxiliary valve core 41 'moves upward under the action of the water pressure to open the auxiliary valve port 141', so as to open the overflow channel 14', so that the water flow of the water inlet 11' can flow to the water outlet 12 'through the overflow channel 14'.

When the overflow channel 14' is opened, the side of the main valve element 21' facing away from the energy storage chamber 13' is subjected to water pressure, and at this time, the resultant force of the elastic force exerted by the first elastic element 22' on the main valve element 21' and the water pressure exerted by the side of the main valve element 21' facing away from the energy storage chamber 13' is greater than the water pressure exerted by the main valve element 21' on the side of the energy storage mechanism 13', taking the direction of fig. 20 as an example, the main valve element 21' moves downward and opens the main valve port 15', and at this time, the water in the energy storage chamber 13' is discharged from the main valve port 15' under the action of the elastic energy storage assembly 30' and flows out from the water outlet 12' together with the water in the water inlet 11', so that the water flow pressure and the water flow rate flowing out of the water outlet 12' can be effectively increased, and the energy storage pressurization of the water flow is realized.

After the water in the energy storage chamber 13 'is discharged, since the elastic force of the second elastic element 32' is greater than the elastic force of the first elastic element 22', the elastic energy storage assembly 30' again abuts against the main valve element 21 'so that the main valve element 21' can be located at a position for closing the main valve port 15 'against the elastic force of the first elastic element 22'. Meanwhile, after the elastic energy storage assembly 30 'is reset, the contact of the swing rod 51' of the transmission mechanism 50 'is lost, and the lifting rod 54' swings downwards under the combined action of the gravity of the lifting rod 54', the gravity of the push rod 52' and the elastic force of the third elastic element 55 'so as to close the pressure relief opening 421', so that the energy storage mechanism is restored to the initial state.

In fig. 18, 20, and 21, arrows indicate the flow direction of water.

When the water inlet 11 'of the energy storage cavity starts to feed water, the water flow of the water inlet 11' is firstly stored in the energy storage cavity 13 'of the energy storage mechanism, and when the elastic energy storage assembly 30' moves to a preset position after the water in the energy storage cavity 13 'is stored to a preset amount, the linkage pilot-operated auxiliary control valve opens the overflowing channel 14', so that the main valve port 15 'is opened, the water in the energy storage cavity 13' can flow out through the main valve port 15 'and flow out from the water outlet 12' together with the water in the water inlet 11', the water flow pressure and the water flow flowing out from the water outlet 12' are improved, and the water flow is stored and pressurized. In addition, the energy storage mechanism adopts the pilot-operated auxiliary control valve, so that the pilot-operated auxiliary control valve can be opened smoothly with small acting force, and the function is more reliable.

In the embodiment, the drain mechanism 300 preferably has the following structure:

referring to fig. 27 to 33, the drainage mechanism 300 of the present embodiment is a hydraulic drainage mechanism, and can selectively utilize part of the water flowing out from the second water outlet channel 15 or part of the water flowing out from the water outlet 12' of the energy storage mechanism to flow to the hydraulic drainage mechanism, so as to drive the hydraulic drainage mechanism to open the drainage by water pressure. Specifically, according to the water inlet pressure of the water inlet mechanism 200, when the water inlet pressure is high, part of the water branched out by the second water outlet channel 15 can be selected to be directly used for driving the drainage mechanism 300 to start drainage; when the water inlet pressure is low, the water pressurized by the energy storage mechanism 400 can be selected to drive the drainage mechanism 300 to open the drainage.

Specifically, the drain mechanism 300 mainly includes a drain body, a drain valve core, a pulling member 4, and a bladder 3.

Wherein the drain body has a drain hole 1301 communicating with the inner cavity of the water tank 100, and more particularly, the drain body includes a housing 6, a cover 2 installed on the upper portion of the housing 6, and a base 13a installed on the lower portion of the housing 6, and an overflow pipe 11a is connected to the side of the base 13a, so that water in the water tank 100 can flow away from the overflow pipe 11a when the water level exceeds the operating water level.

The drain valve core is movably arranged in the drain main body and is provided with a sealing part for opening and closing the drain opening 1301, and specifically, the sealing part comprises a sealing disc 10 arranged at the bottom of the drain valve core and a sealing gasket 9 fixedly arranged on the sealing disc 10.

The pulling member 4 is movably disposed in the drain body and has a driving portion 402 in transmission engagement with the drain valve core.

The bag body 3 is arranged in the drainage main body, the bag body 3 can expand or contract, and particularly, the bag body 3 is made of soft materials.

When part of water which is branched from the water outlet 12' of the energy storage mechanism flows into the capsule 3, the capsule 3 expands to drive the drain valve core to open the drain hole 1301 through the lifting piece 4.

In this embodiment, after part of the water flowing out from the water outlet 12' of the energy storage mechanism stops entering the capsule 3, the drainage valve core resets under the action of gravity and drives the lifting piece 4, the capsule 3 is driven to shrink by the lifting piece 4, and when the capsule 3 shrinks, the water in the capsule 3 flows to the brush ring channel.

In this embodiment, a working chamber 602 is provided in the drain main body, and the capsule 3 is provided in the working chamber 602, so as to prevent the capsule 3 from interfering with the movement of the drain valve core, and to stabilize the operation.

In this embodiment, a joint 1 is fixedly connected above the working chamber 602, and the water outlet 12' of the energy storage mechanism is communicated with the capsule 3 through the joint 1.

In this embodiment, the lifting member 4 is a swing rod which is arranged in the drainage body in a swinging manner, one end of the lifting member 4, which is far away from the driving portion 402, is a transmission portion 401 which is in transmission fit with the capsule 3, and the transmission portion 401 is located below the capsule 3. Specifically, the bottom of the capsule body 3 is connected with a movable plug 5 which can move under the expansion or contraction action of the capsule body 3, and the capsule body 3 is in butt fit with the transmission 401 through the movable plug 5.

In this embodiment, the drain valve further includes a float 12a movably disposed in the drain body, when the float 12a floats to the first position, the float can limit the lifted drain valve core so that the drain valve core keeps open the drain opening 1301, and when the float 12a falls to the second position, the float can give way to the drain valve core so that the drain valve core can fall and close the drain opening 1301. Therefore, after the drain port 1301 is opened, the drain valve core can be limited through the buoy 12a, so that the drain valve core is kept at the position where the drain port 1301 is opened, the drain time is prolonged, and the requirement of flushing water quantity is met.

In this embodiment, the float 12a has a limiting portion 1201, the drain valve core is provided with a valve rod 7, the sealing portion is disposed at the bottom of the valve rod 7, the valve rod 7 is provided with a clamping portion 702 which is in limit fit with the limiting portion 1201, specifically, the upper end of the valve rod 7 is further provided with a jack 701 into which the driving portion 402 extends, and the driving portion 402 abuts against the upper surface of the jack 701 to drive the drain valve core to move.

In this embodiment, a compartment 601 is provided in the drain main body, the compartment 601 has an inlet 603 communicating with the toilet tank 100, and the float 12a is movably disposed in the compartment 601. The water inlet opening 603 is movably arranged at the position of the adjusting body 8, the size of the water inlet opening 603 is adjusted through the adjusting body 8, specifically, the water inlet opening 603 is arranged on the bottom wall of the partition cavity 601, the adjusting body 8 is an adjusting sheet with adjusting teeth, tooth grooves are correspondingly arranged on the inner wall of the partition cavity 601, and the size of the water inlet opening 603 is adjusted by rotating the adjusting sheet; by providing separate compartment 601 the floating or falling of buoy 12a in compartment 601 prevents other components in tank 100 from interfering with the movement of buoy 12a, providing a stable operation, and by providing adjustment body 8 for adjusting the size of inlet opening 603 to adjust the rate of discharge of compartment 601 and thereby control the fall time of buoy 12a and thus the amount of water discharged by the discharge mechanism.

The specific working process of this embodiment is as follows:

as shown in fig. 30: under normal conditions, when the water tank 100 is full to a preset position, the float 12a in the drainage main body floats, the drainage valve core is in sealing fit with the drainage port 1301 under the action of self gravity and the pressure of the water in the water tank 100 so as to close the drainage port 1301, and the water in the water tank 100 is prevented from flowing out of the drainage port 1301; meanwhile, under the action of the drainage valve core, the transmission part 401 of the lifting piece 4 props against the capsule body 3, at the moment, the water inlet mechanism 200 is not started to feed water, and the capsule body 3 is in a contraction state;

as shown in fig. 31: when the water inlet mechanism 200 is started to feed water, water flow is pressurized and increased by the energy storage mechanism 400 and then divided into one flow to the bag body 3, the water flow pushes the bag body 3 open to expand the bag body 3, the bag body 3 expands and pushes against the transmission part 401 of the lifting piece 4 to move downwards, at the moment, the driving part 402 of the lifting piece 4 moves upwards and drives the drainage valve core to move upwards together, so that the sealing part of the drainage valve core opens the water outlet 1301, and water in the water tank 100 flows out of the water outlet 1301 to a toilet pipeline; meanwhile, as the buoy 12a still keeps a floating state, the clamping part 702 of the drainage valve core is in abutting limit fit with the limit part 1201 of the buoy 12a, so that the drainage valve core is kept in a state of opening the drainage port 1301, and at the moment, even if water supply to the capsule body 3 is stopped, the drainage valve core can still delay falling to achieve the purpose of prolonging drainage time;

as shown in fig. 32: as the water in water tank 100 is drained, the water level drops, the water in compartment 601 will also be drained slowly from inlet hole 603, and float 12a falls into an inclined state with the water level in water tank 100, so that limit part 1201 of float 12a is separated from the clamping part of the drain valve core;

as shown in fig. 33: when the water inlet mechanism 200 stops supplying water to the capsule 3 and the limiting part 1201 of the float 12a is completely separated from the clamping part 702 of the drain valve core, the drain valve core falls down due to the self gravity, so that the sealing part is in sealing fit with the drain hole 1301 again, and the water in the water tank 100 is prevented from flowing out of the drain hole 1301; meanwhile, the transmission part 401 of the lifting piece 4 moves upwards to push the capsule body 3 upwards, and water in the capsule body 3 is extruded to a brush ring channel of the closestool, so that the capsule body 3 is recovered to a contraction state.

When the water is drained and the drain port 1301 is resealed by the drain valve, the water level in the tank 100 rises, and water enters the compartment 601 through the inlet 603 to float the float 12a again by buoyancy, so as to return to the initial pre-draining state for the next cycle.

The adjusting body 8 capable of adjusting the size of the water inlet 603 is arranged to adjust the water outlet speed of the compartment 601, so as to control the falling time of the buoy 12a and further control the water discharge amount of the drainage main body.

The drain mechanism 300 of the present invention may be a hydraulic drain mechanism that is commonly used in the related art, in addition to the above-described specific structure, and will not be described in detail herein.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "component" and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component or one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is not applicable or otherwise stated in the other embodiment.

While the foregoing specification illustrates and describes the preferred embodiments of this invention, it is to be understood that the invention is not limited to the precise forms disclosed herein and is not to be interpreted as excluding the existence of additional embodiments that are also intended to be encompassed by the present invention, subject to various other combinations, modifications, and environments and which are within the scope of the inventive concept as expressed herein, by applying ordinary skill in the pertinent art, knowledge of the relevant art(s) and/or teachings herein. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A toilet flushing device, comprising:

a water tank;

the water discharging mechanism is arranged in the water tank and used for controlling water in the water tank to flow to a spraying channel of the closestool so as to spray and flush the bottom of the closestool, and a part of water flow of a water outlet of the energy storage mechanism is divided to the water discharging mechanism so as to control the water discharging mechanism to open and discharge water;

wherein, energy storage mechanism locates in the water tank, energy storage mechanism includes:

when water enters the water inlet, water flows into the energy storage cavity by overcoming the elastic force of the elastic energy storage assembly and drives the elastic energy storage assembly to enable the elastic energy storage assembly to store energy, the pilot type auxiliary control valve closes or keeps closing the overflowing channel under the action of water pressure difference, when the elastic energy storage assembly moves to a preset position, the elastic energy storage assembly is linked to open the pressure relief opening of the pilot type auxiliary control valve to open the overflowing channel, so that one side, back to the energy storage cavity, of the main valve core is under the action of water pressure to open the main valve opening, and then the water in the energy storage cavity is discharged from the main valve opening under the action of the elastic energy storage assembly and flows out of the water outlet together with the water in the water inlet.

2. The toilet flushing device of claim 1, wherein the control valve comprises a first control valve in back pressure and a second control valve in back pressure, the water inlet mechanism further comprising a control float;

the first control valve is arranged between the water inlet channel and the first water outlet channel, and the control floating barrel can rise or fall along with the water level in the water tank so that the first control valve controls the water inlet channel and the first water outlet channel to be cut off or communicated;

the second control valve is arranged between the water inlet channel and the second water outlet channel and used for controlling the water inlet channel and the second water outlet channel to be cut off or communicated with each other, and the second control valve is controlled to be opened by a driving piece.

3. The toilet flushing device according to claim 2, wherein the driving member is in positive engagement with the control float in the floating position when moving from the initial position to the position for opening the second control valve, and wherein the driving member is reset to the initial position after the control float falls down so that the second control valve is closed.

4. The toilet flushing device according to claim 2, further comprising a limit float, the limit float being capable of rising or falling with the water level in the tank, the driving member moving from an initial position to a position where the second control valve is opened and engaging with the limit float in a floating position, the driving member being reset to the initial position after the limit float falls so that the second control valve is closed.

5. The toilet flushing device according to claim 3 or 4, wherein a limiting member is disposed between the driving member and the control float or the limiting float, the control float or the limiting float limits or steps down the driving member via the limiting member, the limiting member is driven to move to a limiting position where the driving member can be limited when the control float or the limiting float floats, and the limiting member is driven to move to a step down position where the driving member can be stepped down when the control float or the limiting float falls.

6. The toilet flushing device according to claim 2, wherein the first control valve comprises a first valve seat having a first valve port, a first elastic valve plate in open-close fit with the first valve port, a first back pressure chamber, a first pressure relief port in communication with the first back pressure chamber, and a first connecting rod for opening and closing the first pressure relief port, and the water inlet channel is in communication with the first water outlet channel through the first valve port;

7. The toilet flushing device of claim 1, wherein the drainage mechanism comprises:

a bladder disposed on the drain body, the bladder being capable of expanding or contracting;

8. The toilet flushing device according to claim 7, wherein after the water flow of the second water outlet channel or the water flow of the water outlet of the energy storage mechanism stops entering the bag body, the water discharge valve core drives the lifting piece to drive the bag body to contract through the lifting piece when being reset, and when the bag body contracts, the water in the bag body flows to the brush ring channel of the toilet.

9. The toilet flushing device according to claim 7, wherein the drain mechanism further comprises a float movably disposed in the drain body, wherein the float is capable of limiting the lifted drain valve element when floating up to a first position so that the drain valve element keeps opening the drain opening, and the float is capable of yielding the drain valve element when falling down to a second position so that the drain valve element can fall and close the drain opening.

10. The toilet flushing device as claimed in claim 7, wherein the lifting member is a swing rod arranged in the drainage body in a swinging manner, and one end of the lifting member, which is far away from the driving part, is a transmission part in transmission fit with the capsule body.

11. The toilet flushing device according to claim 1, wherein the elastic energy storage assembly comprises a piston and a second elastic member acting on the piston, the piston comprises a piston head and a piston rod, a sealing member is arranged on the piston head, the piston head forms a dynamic seal with the inner wall of the energy storage cavity through the sealing member, the piston head seals and separates the energy storage cavity into a first cavity and a second cavity, the first cavity is communicated with the water inlet and the main valve port, and the second cavity is communicated with the outside.

12. The toilet flushing device according to claim 1, wherein the elastic energy storage assembly opens a pressure relief port of the pilot-operated auxiliary control valve through transmission of a transmission mechanism, an auxiliary valve port is formed on the flow passage, the pilot-operated auxiliary control valve comprises an auxiliary valve cover and an auxiliary valve core matched with the auxiliary valve port, a back pressure cavity is formed between the auxiliary valve core and the auxiliary valve cover, the pressure relief port is communicated with the back pressure cavity, the back pressure cavity is communicated with the water inlet through a flow passage, when the pressure relief port is opened, the auxiliary valve core opens the auxiliary valve port under the action of the pressure of inlet water, and when the pressure relief port is closed, the auxiliary valve core closes the auxiliary valve port under the action of the pressure difference on two sides of the auxiliary valve core.