CN113431152A - Low water tank closestool flushing system - Google Patents

Low water tank closestool flushing system Download PDF

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Publication number
CN113431152A
CN113431152A CN202110676233.3A CN202110676233A CN113431152A CN 113431152 A CN113431152 A CN 113431152A CN 202110676233 A CN202110676233 A CN 202110676233A CN 113431152 A CN113431152 A CN 113431152A
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CN
China
Prior art keywords
water
control valve
tank
flushing
water tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110676233.3A
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Chinese (zh)
Inventor
吴国强
廖冬冬
林荣华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiamen Wisdom Chenxing Technology Co ltd
Original Assignee
Xiamen Bichen Design Service Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xiamen Bichen Design Service Co ltd filed Critical Xiamen Bichen Design Service Co ltd
Priority to CN202110676233.3A priority Critical patent/CN113431152A/en
Publication of CN113431152A publication Critical patent/CN113431152A/en
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/24—Low-level flushing systems
    • E03D1/28—Bowl integral with the flushing cistern
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/24—Low-level flushing systems
    • E03D1/28—Bowl integral with the flushing cistern
    • E03D1/286—Bowl integral with the flushing cistern provided with flushing valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
    • E03D1/34—Flushing valves for outlets; Arrangement of outlet valves
    • E03D1/35—Flushing valves having buoyancy
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/10—Special constructions of flushing devices, e.g. closed flushing system operated electrically, e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/10—Special constructions of flushing devices, e.g. closed flushing system operated electrically, e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl
    • E03D5/105—Special constructions of flushing devices, e.g. closed flushing system operated electrically, e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl touchless, e.g. using sensors

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Sanitary Device For Flush Toilet (AREA)

Abstract

The invention discloses a low water tank toilet flushing system, comprising: a water tank; the closestool seat body is provided with an upper flushing port and a lower flushing port; the outlet of the first flushing waterway is communicated with the upper flushing port; the outlet of the second flushing waterway is communicated with the lower flushing port; the water inlet device is used for supplying water to the water tank; the water pump is used for pumping water in the water tank; the control panel is electrically connected with the water pump and used for controlling the opening and closing of the water pump; the first control valve is arranged in the water tank, the water inlet end of the first control valve is communicated with the water pump, the water outlet end of the first control valve is communicated with the inlet of the first flushing waterway, the first control valve is provided with a first floating barrel, and the first floating barrel controls the opening and closing of the first control valve along with the water level of the water tank; the second control valve is arranged in the water tank, the water inlet end of the second control valve is communicated with the water pump, the water outlet end of the second control valve is communicated with the inlet of the second flushing waterway, the second control valve is provided with a second floating barrel, and the second floating barrel controls the opening and closing of the second control valve along with the water level of the water tank. Above-mentioned scheme water tank places the position more nimble, and product stability and life are better.

Description

Low water tank closestool flushing system
Technical Field
The invention relates to the technical field of toilets, in particular to a low-water-tank toilet flushing system.
Background
The existing low-water-tank toilet flushing system is more concise in appearance and more popular, and various drainage schemes of the low-water-tank toilet flushing system are available on the market, for example, some drainage schemes adopt a pure mechanically-opened drainage valve or a scheme of draining water by utilizing a hydraulically-opened drainage valve, the flushing force of the drainage water flow is influenced by the gravitational potential energy of the water in the water tank, the flushing force of the water flow is insufficient due to the adoption of the low water tank, and in addition, the phenomenon that the water in a urinal flows back into the water tank is easily caused due to the fact that the water outlet of the drainage valve is lower than the highest water level during flushing in the toilet bowl; for another example, in the other drainage scheme, a motor is used for controlling the water separator to perform drainage control, so that the cost is high, and the water separation piece on the water separator is easily abraded by mud and sand in water, so that the stability of the product is poor, and the service life is influenced.
Disclosure of Invention
The invention aims to provide a low-water-tank toilet bowl flushing system, and aims to ensure that the flushing force of flushing water is not influenced by the height of a water tank, the design position of the water tank is more flexible, and the phenomenon that water in a urinal flows back into the water tank can be effectively avoided; the other purpose is to reduce the cost and increase the stability and the service life of the product.
To achieve the above object, the present invention provides a low tank toilet flushing system, comprising:
a water tank for storing water;
the closestool seat body is provided with an upper flushing port and a lower flushing port;
the outlet of the first flushing waterway is communicated with the upper flushing port;
the outlet of the second flushing waterway is communicated with the lower flushing port;
the water inlet device is used for supplying water to the water tank;
the water pump is used for pumping water in the water tank;
the control panel is electrically connected with the water pump and used for controlling the opening and closing of the water pump;
the first control valve is arranged in the water tank, the water inlet end of the first control valve is communicated with the water pump, the water outlet end of the first control valve is communicated with the inlet of the first flushing waterway, the first control valve is provided with a first floating barrel, and the first floating barrel controls the opening and closing of the first control valve along with the water level of the water tank;
the second control valve is arranged in the water tank, the water inlet end of the second control valve is communicated with the water pump, the water outlet end of the second control valve is communicated with the inlet of the second flushing waterway, the second control valve is provided with a second floating barrel, and the second floating barrel controls the second control valve to be opened and closed along with the water level of the water tank.
According to the low water tank toilet flushing system, because the flushing water is extracted from the water tank by the water pump, the placing height of the water tank does not influence the flushing force of the flushing water, and the placing position of the water tank is more flexible; the first control valve and the second control valve are adopted to control the drainage, and a drainage port with the position lower than the highest water level in the toilet during flushing is not required to be arranged, so that the risk that water in the toilet flows back into the water tank is avoided; because first control valve and second control valve are the mechanical valve of keg float control switching, consequently, be difficult to because of the wearing and tearing of the silt particle of aquatic, can increase product stability and life when reduce cost.
In a preferred embodiment, the first control valve is opened when the first floating barrel is in a floating state, and the first control valve is closed when the first floating barrel is in a falling state; the second control valve is closed when the second floating barrel is in a floating state, and the second control valve is opened when the second floating barrel is in a falling state; when the water tank is at the working water level, the first floating barrel and the second floating barrel are both in a floating state. This scheme can make first control valve and second control valve open at different periods respectively to can wash the water route through first washing water route and second and wash the water route and wash the closestool simultaneously.
In a preferred embodiment, the tank water level of the first float is lower than or equal to the tank water level of the second float, i.e. the first control valve is closed after the second control valve is opened, or closed at the same time as the second control valve is opened. According to the scheme, the first control valve and the second control valve cannot be both in a closed state, and the problem of water pump water outlet pressure building is avoided.
In a preferred embodiment, the water pump is disposed in the water tank or outside the water tank.
In a preferred embodiment, the first control valve and the second control valve are both back pressure valves, the first float bucket opens or closes the back pressure hole on the first control valve through a first transmission mechanism when floating or falling, and the second float bucket closes or opens the back pressure hole on the second control valve through a second transmission mechanism when floating or falling; the first control valve and the second control valve are assembled into a whole, or the first control valve and the second control valve are independently arranged. According to the scheme, the first control valve and the second control valve both adopt the existing known back pressure valve structure, the structure is simple, and the technology is mature; the first control valve and the second control valve are assembled into a whole, so that the installation is more convenient, and the whole structure is more compact.
In a preferred embodiment, the valve body of the first control valve and the valve body of the second control valve are mounted at the same end of a water inlet pipe and are respectively communicated with the water inlet pipe, and the other end of the water inlet pipe is communicated with the outlet of the water pump.
In a preferred embodiment, the water inlet pipe is vertically fixed in the water tank, the valve body of the first control valve and the valve body of the second control valve are symmetrically arranged at the top end of the water inlet pipe, the bottom end of the water inlet pipe is communicated with the water pump, and the first floating barrel and the second floating barrel can be movably arranged on the outer wall of the water inlet pipe from top to bottom respectively. According to the scheme, the first floating barrel and the second floating barrel are movably arranged on the outer wall of the water inlet pipe, and the structure is simple and compact.
In a preferred embodiment, an air gap is formed between the outlet of the water inlet device and the working water level of the water tank. The anti-siphon requirement of the product can be effectively met by arranging the air gap.
In a preferred embodiment, the water tank is arranged in a cavity in the toilet seat body and positioned at the rear of the urinal, an overflow port is arranged on the front side wall of the water tank, and water overflowing from the overflow port is communicated with the urinal. According to the scheme, the overflow port is directly formed in the front side wall of the water tank so as to lead overflowing water to the urinal, the structure is simple, additional overflow pipes and other parts are not needed, and the cost is saved.
In a preferred embodiment, the control board controls the water pump to be started according to a sensing signal of a sensor or a triggering signal of a switch or a remote control signal of a remote controller; the control panel controls the water supply amount of the water tank to the toilet seat body by controlling the starting time of the water pump. This scheme, thereby control the water yield of usefulness of washing through the opening time control of control panel control water pump, water yield control is more stable to as long as the opening time of setting for the water pump through the procedure can realize the regulation to the washing water yield, it is very convenient to adjust.
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 schematic view of a low tank toilet flushing system according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of the combination of the water tank, the water pump, the water inlet device, the first control valve and the second control valve according to a preferred embodiment of the present invention;
FIG. 3 is an exploded view of the water tank, water pump, water inlet, first control valve and second control valve according to a preferred embodiment of the present invention;
FIG. 4 is a schematic illustration of the assembly of the first and second control valves according to a preferred embodiment of the present invention;
fig. 5 is a diagram illustrating a connection relationship between respective components according to a preferred embodiment of the present invention (in the drawing, a dotted line indicates a circuit connection, and a solid line indicates a water connection).
The reference signs are:
1-a water tank; 11-an overflow port;
2-a toilet seat body; 21-upper punch mouth; 22-lower punch mouth; 23-a urinal;
3-a first flushing waterway;
4-a second flushing waterway;
5-a water inlet device;
6-a first control valve; 61-a first pontoon; 62-a first transmission mechanism;
7-a second control valve; 71-a second pontoon; 72-a second transmission;
8-water inlet pipe;
9-water pump.
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 may be practiced without one or more of the specific details. In certain instances, well known features have not been described in detail in order to avoid obscuring 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.
Referring to fig. 1 to 5, a low tank toilet flushing system according to an embodiment of the present invention includes:
a water tank 1 for storing water;
a toilet seat body 2 having an upper flushing port 21 and a lower flushing port 22;
a first flushing waterway 3, wherein the outlet of the first flushing waterway 3 is communicated with the upper flushing port 21;
a second flushing waterway 4, wherein the outlet of the second flushing waterway 4 is communicated with the lower flushing port 22;
the water inlet device 5 is used for supplying water to the water tank 1, and the water inlet device 5 only adopts a water inlet valve which is commonly used in the existing toilet water tank;
a water pump 9 for pumping water in the water tank 1;
a control board (not shown) electrically connected to the water pump 9 for controlling the opening and closing of the water pump 9;
the first control valve 6 is arranged in the water tank 1, the water inlet end of the first control valve 6 is communicated with the water pump 9, the water outlet end of the first control valve 6 is communicated with the inlet of the first flushing waterway 3, the first control valve 6 is provided with a first floating barrel 61, and the first floating barrel 61 controls the opening and closing of the first control valve 6 along with the water level of the water tank 1;
and the second control valve 7 is arranged in the water tank 1, the water inlet end of the second control valve 7 is communicated with the water pump 9, the water outlet end of the second control valve 7 is communicated with the inlet of the second flushing waterway 4, the second control valve 7 is provided with a second floating barrel 71, and the second floating barrel 71 controls the opening and closing of the second control valve 7 along with the water level of the water tank 1.
Because the washing water is extracted from the water tank 1 by the water pump 9, the placing height of the water tank 1 can not influence the scouring force of the washing water, and the placing position of the water tank 1 is more flexible; the first control valve 6 and the second control valve 7 are adopted to control the water drainage, a water outlet which is lower than the highest water level in the urinal 23 during flushing is not required to be arranged, and therefore the risk that the water in the urinal 23 flows back into the water tank 1 is avoided; because first control valve 6 and second control valve 7 are the mechanical valve of keg float control switching, consequently, be difficult to because of the wearing and tearing of the silt particle in aquatic, can increase product stability and life when reduce cost.
In this embodiment, the first control valve 6 is opened when the first float 61 is in the floating state, and the first control valve 6 is closed when the first float is in the falling state; the second control valve 7 is closed when the second float bowl 71 is in a floating state, and the second control valve 7 is opened when the second float bowl is in a falling state; when the water tank 1 is at the working water level, the first float 61 and the second float 71 are both in a floating state. This enables the first control valve 6 and the second control valve 7 to be opened at different times, respectively, so that the toilet can be flushed by the first flushing water path 3 and the second flushing water path 4 at different times. The water flow from the upper flushing port 21 of the toilet seat body 2 is used for flushing the wall surface of the urinal 23, and the water flow from the lower flushing port 22 is used for jetting the sewage trap, thereby promoting the sewage trap to perform sewage drainage. The toilet is washed by the first flushing waterway 3 prior to the second flushing waterway 4, thereby facilitating more complete removal of the filth washed from the wall surface of the toilet bowl 23.
In the present embodiment, the water level of the tank 1 immediately after the first float 61 falls is lower than or equal to the water level of the tank 1 immediately after the second float 71 falls, that is, the first control valve 6 is closed after the second control valve 7 is opened, or is closed while the second control valve 7 is opened. The design makes first control valve 6 and second control valve 7 can not all be in the closed state, avoids the problem that the water pump 9 goes out the water and builds pressure.
The water pump 9 can be selected to be arranged in the water tank 1 or outside the water tank 1, and the water pump 9 is selected to be arranged outside the water tank 1, specifically below the water tank 1 in the embodiment.
In this embodiment, the first control valve 6 and the second control valve 7 are both back pressure valves, the first float tub 61 opens or closes a back pressure hole (not shown) on the first control valve 6 by the first transmission mechanism 62 to open or close the first control valve 6 when floating or falling, and the second float tub 71 opens or closes a back pressure hole (not shown) on the second control valve 7 by the second transmission mechanism 72 to close or open the second control valve 7 when floating or falling. The first control valve 6 and the second control valve 7 both adopt the existing well-known back pressure valve structure, and have simple structure and mature technology. The first transmission mechanism 62 and the second transmission mechanism 72 respectively include a screw and a lifting rod, the top end of the screw is connected to one end of the lifting rod, and the other end of the lifting rod is in open-close fit with the back pressure hole.
In this embodiment, the first control valve 6 and the second control valve 7 are assembled into a whole, so that the installation is more convenient and the overall structure is more compact. Of course, in other embodiments, the first control valve 6 and the second control valve 7 may be provided independently.
In this embodiment, the valve body of the first control valve 6 and the valve body of the second control valve 7 are installed at the same end of a water inlet pipe 8 and are respectively communicated with the water inlet pipe 8, and the other end of the water inlet pipe 8 is communicated with the outlet of the water pump 9. Specifically, 8 vertical fixes in water tank 1 of inlet tube, and the valve body of first control valve 6 and the valve body symmetry of second control valve 7 set up on 8 top of inlet tube, and 8 bottom of inlet tube and the switch-on of water pump 9, first keg float 61 and second keg float 71 can be located on 8 outer walls of inlet tube about the activity respectively. The first floating barrel 61 and the second floating barrel 71 are movably arranged on the outer wall of the water inlet pipe 8, and the structure is simple and compact.
In this embodiment, an air gap is formed between an outlet (not shown) of the water inlet device 5 and the operating water level of the water tank 1. The anti-siphon requirement of the product can be effectively met by arranging the air gap. In addition, the water inlet device 5 is further connected with a water replenishing pipe (not shown) which is communicated with the upper flushing port 21 of the toilet seat body 2, and when the water inlet device 5 is opened to supply water, the water seal at the bottom of the toilet bowl 23 is replenished through the water replenishing pipe so that the water of the water seal is enough.
In this embodiment, the water tank 1 is disposed in the cavity behind the toilet bowl 23 in the toilet seat 2, the overflow port 11 is disposed on the front side wall of the water tank 1, and the water overflowing from the overflow port 11 is communicated to the toilet bowl 23. The overflow port 11 is directly formed on the front side wall of the water tank 1 to lead the overflowing water to the urinal 23, so that the structure is simple, additional overflow pipes and other parts are not needed, and the cost is saved.
In this embodiment, the control board controls the water pump 9 to be turned on according to the sensing signal of the sensor, the trigger signal of the switch, the remote control signal of the remote controller, and the like, the sensor may be a common infrared sensor and the like, and the switch may be a common touch switch and the like. The control panel controls the water supply amount of the water tank 1 to the toilet seat body 2 by controlling the opening time of the water pump 9. Thereby the water yield of usefulness is washed in the open time control through control panel control water pump 9, and water yield control is more stable to as long as set for the open time of water pump 9 through the procedure can realize the regulation to the washing water yield, it is very convenient to adjust.
Referring to fig. 1, the specific working process of this embodiment is briefly described as follows:
the sensor sends a sensing signal to the control panel, the control panel controls the starting of the water pump 9 according to the sensing signal, the water pump 9 pumps water from the water tank 1 to the water inlet pipe 8, and at the moment, the water level H1 in the water tank 1 is a working water level, the first floating barrel 6 floats up to enable the first control valve 6 to be in an open state, and the second floating barrel 7 floats up to enable the second control valve 7 to be in a closed state, so that the water conveyed by the water pump 9 enters the first flushing water channel 3 through the first control valve 6, and then flows into the urinal 23 from the upper flushing port 21 on the toilet seat body 2 to flush the wall surface of the urinal 23, and the upper flushing action is realized;
then, as the water level in the water tank 1 drops, when the water level in the water tank 1 drops to the position H2 shown in fig. 1, the second float bowl 71 drops first, so as to open the second control valve 7, and at this time, a part of the water delivered by the water pump 9 enters the second flushing waterway 4 through the second control valve 7, and then flows into the bottom of the urinal 23 from the lower flushing port 22 on the toilet seat 2 to jet the bottom of the urinal 23 to promote sewage discharge, so as to realize simultaneous flushing action of the upper part and the lower part; in this process, the water level in the bowl 23 reaches the highest position H4, and H4 is located lower than the first control valve 6 and the second control valve 7.
Then, as the water level in the water tank 1 continues to drop, when the water level drops to the position H3 shown in fig. 1, the first float 61 drops, thereby closing the first control valve 6, and the water flow stops flowing out from the upper flushing port 21, at which time the upper flushing action of the toilet stops;
finally, a predetermined time after the first control valve 6 is closed, the control board controls the water pump to be closed, so that the water flow is stopped from flowing out of the lower flushing port 22, and the whole flushing process is finished.
After the water pump is stopped, the water inlet device 5 starts to fill the water tank 1 with water to prepare for the next flushing, and during the water inlet process of the water inlet device 5, the water seal of the urinal 23 is supplemented with water through the water supplementing pipe, so that the water level of the urinal 23 is supplemented to the position H5 shown in FIG. 1.
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 otherwise inapplicable 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 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 within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. 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 (10)

1. A low tank toilet flushing system, comprising:
a water tank for storing water;
the closestool seat body is provided with an upper flushing port and a lower flushing port;
the outlet of the first flushing waterway is communicated with the upper flushing port;
the outlet of the second flushing waterway is communicated with the lower flushing port;
the water inlet device is used for supplying water to the water tank;
the water pump is used for pumping water in the water tank;
the control panel is electrically connected with the water pump and used for controlling the opening and closing of the water pump;
the first control valve is arranged in the water tank, the water inlet end of the first control valve is communicated with the water pump, the water outlet end of the first control valve is communicated with the inlet of the first flushing waterway, the first control valve is provided with a first floating barrel, and the first floating barrel controls the opening and closing of the first control valve along with the water level of the water tank;
the second control valve is arranged in the water tank, the water inlet end of the second control valve is communicated with the water pump, the water outlet end of the second control valve is communicated with the inlet of the second flushing waterway, the second control valve is provided with a second floating barrel, and the second floating barrel controls the second control valve to be opened and closed along with the water level of the water tank.
2. The low tank toilet flushing system of claim 1, wherein the first float opens the first control valve when in a float state and closes the first control valve when in a fall state; the second control valve is closed when the second floating barrel is in a floating state, and the second control valve is opened when the second floating barrel is in a falling state; when the water tank is at the working water level, the first floating barrel and the second floating barrel are both in a floating state.
3. The low tank toilet flushing system of claim 2, wherein the tank level upon the first float falling is lower than or equal to the tank level upon the second float falling, i.e., the first control valve is closed after the second control valve is opened or closed at the same time the second control valve is opened.
4. The low tank toilet flushing system of claim 1, wherein the water pump is located within the tank or outside the tank.
5. The low tank toilet flushing system of claim 1, wherein the first and second control valves are back pressure valves, the first float bowl opens or closes a back pressure port on the first control valve through a first transmission mechanism when floating or falling, and the second float bowl closes or opens a back pressure port on the second control valve through a second transmission mechanism when floating or falling; the first control valve and the second control valve are assembled into a whole, or the first control valve and the second control valve are independently arranged.
6. The low tank toilet flushing system of claim 5, wherein the valve body of the first control valve and the valve body of the second control valve are disposed at the same end of an inlet pipe and are respectively communicated with the inlet pipe, and the other end of the inlet pipe is communicated with the outlet of the water pump.
7. The low tank toilet flushing system of claim 6, wherein the inlet pipe is vertically fixed in the tank, the valve bodies of the first and second control valves are symmetrically disposed at the top end of the inlet pipe, the bottom end of the inlet pipe is connected to a water pump, and the first and second float tanks are movably disposed on the outer wall of the inlet pipe up and down, respectively.
8. The low tank toilet flushing system of claim 1, wherein an air gap is provided between the outlet of the water inlet device and the operating water level of the tank.
9. The low tank toilet flushing system of claim 1, wherein the tank is disposed within the toilet seat in a cavity behind the bowl, and wherein the tank has an overflow port in a front side wall thereof, the overflow port allowing water to overflow into the bowl.
10. The low tank toilet flushing system of claim 1, wherein the control board controls the water pump to turn on according to a sensing signal of a sensor or a trigger signal of a switch or a remote control signal of a remote controller; the control panel controls the water supply amount of the water tank to the toilet seat body by controlling the starting time of the water pump.
CN202110676233.3A 2021-06-18 2021-06-18 Low water tank closestool flushing system Pending CN113431152A (en)

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CN111827433A (en) * 2020-07-13 2020-10-27 厦门帝恒诺卫浴科技有限公司 Toilet flushing system and working method thereof
CN213390410U (en) * 2020-08-11 2021-06-08 广东航牌卫浴科技有限公司 Toilet capable of realizing flushing under low water pressure
CN215211339U (en) * 2021-06-18 2021-12-17 厦门必宸设计服务有限公司 Low water tank closestool flushing system

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CN111827433A (en) * 2020-07-13 2020-10-27 厦门帝恒诺卫浴科技有限公司 Toilet flushing system and working method thereof
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CN113898046B (en) * 2021-11-09 2024-01-30 谷力(厦门)科技有限公司 Toilet bowl drainage device capable of improving flushing performance

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