CN107165245B - Water-saving closestool with hidden water tank and flushing method - Google Patents
Water-saving closestool with hidden water tank and flushing method Download PDFInfo
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- CN107165245B CN107165245B CN201710590724.XA CN201710590724A CN107165245B CN 107165245 B CN107165245 B CN 107165245B CN 201710590724 A CN201710590724 A CN 201710590724A CN 107165245 B CN107165245 B CN 107165245B
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- water
- flushing
- guide ring
- ring groove
- valve
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- 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
- E03D11/06—Bowls with downwardly-extending flanges for the sake of flushing
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K13/00—Seats or covers for all kinds of closets
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- 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
-
- 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
- E03D11/13—Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing
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- 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
- E03D11/13—Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing
- E03D11/16—Means for connecting the bowl to the floor, e.g. to a floor outlet
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D3/00—Flushing devices operated by pressure of the water supply system flushing valves not connected to the water-supply main, also if air is blown in the water seal for a quick flushing
- E03D3/10—Flushing devices with pressure-operated reservoir, e.g. air chamber
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Sanitary Device For Flush Toilet (AREA)
Abstract
The invention discloses a water tank hidden type water-saving closestool and a flushing method, wherein the water tank hidden type water-saving closestool comprises a closestool body, a sinking bay at the bottom of the closestool body is connected with a sewage discharge siphon pipeline, a flushing port is arranged on the side surface of the sinking bay, a seat ring flushing port is arranged around the upper opening of the closestool body, and at least one booster-type water storage tank is hidden and arranged on the rear side of the closestool body; a water storage piston cylinder is arranged at the upper middle part in the water storage tank, a movable plate is arranged at the lower part in the water storage tank, a pressure spring is arranged on the bottom surface of the movable plate, a water storage piston cylinder matched with the water storage piston cylinder is arranged at the middle part above the movable plate, a pressure storage piston cylinder matched with the inner wall of the water storage tank is also arranged above the movable plate, a pressure storage cavity is formed between the outer wall of the water storage piston cylinder and the inner wall of the water storage tank, the pressure storage cavity is connected with a flushing port through a pressurization pipe, and a pressure discharge check valve is arranged on the pressurization pipe; when the closestool is flushed, the air pressure stored in the pressure storage cavity and flushing water sprayed in the water storage container (water storage piston cylinder) are mixed to form increased flushing pressure, so that the blowdown of the closestool can be flushed cleanly.
Description
Technical Field
The invention relates to the field of toilets, in particular to a water-saving toilet with a hidden water tank and a flushing method.
Background
The existing flush toilet mostly adopts a normal pressure type flushing mode, namely, the toilet is flushed by utilizing water pressure under the action of gravity and water level fall. However, the flushing mode requires a water head drop. Therefore, the water tank of the toilet needs to be stored at a higher position, so that the toilet is mostly provided with a high water tank at the back at the present stage. The appearance and the whole effect of the closestool are ancient and completely novel. Modern homes require fashion and elegance; the traditional closestool can not meet the requirements of people on the appearance of the closestool under the requirements of individuality and artistry. Many companies seek new breakthroughs in these ways; the products which are produced at present are mainly divided into two types according to the flushing function, namely, the water tank is hidden under a toilet seat and is flushed by pumping water with a water pump, and the flushing is directly realized by controlling the running water with an electromagnetic valve.
However, the two products have great disadvantages in practical use
1. One is to hide the water tank under the toilet seat and to flush it by pumping water with a water pump. The main defects of the method are that a water pump is used for pumping water and a power supply is provided for use; B. the toilet is very difficult to change and repair, and the whole toilet needs to be dismantled for changing and repair; C. the cost is very high, and is dozens of times or even dozens of times of the cost of the common product; D. the installation space requirement is large, and the appearance of different shapes is not easy to realize;
2. the other type directly uses tap water to realize flushing by electromagnetic valve control. The main disadvantages are that: A. it requires the extraction of water of a larger pore size from the supply water and therefore affecting the pressure of the water supply system during operation of the toilet is significantly susceptible to other water consuming equipment operating simultaneously. (e.g., water heaters, faucets, etc.); B. the product has poor scouring performance when the water supply pressure is low. C. The water consumption of the product is greatly changed under different pressures, and the water consumption is unstable, so that the water is not beneficial to water saving.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a water-saving closestool with a hidden water tank and a flushing method thereof, and solves the problems that the existing closestool occupies large space, does not save water and cannot be flushed cleanly after being used.
The invention is realized by the following technical scheme:
a water-saving closestool with a concealed water tank comprises a closestool body, wherein a sinking bay at the bottom of the closestool body is connected with a sewage discharge siphon pipeline, a flushing port is arranged on the side surface of the sinking bay, a seat ring flushing port is arranged around the upper opening of the closestool body,
at least one booster-type water storage tank is hidden at the rear side of the toilet bowl;
a water storage piston cylinder is arranged at the upper middle part in the water storage tank, a movable plate is arranged at the lower part in the water storage tank, a pressure spring is arranged on the bottom surface of the movable plate, a water storage piston cylinder matched with the water storage piston cylinder is arranged at the middle part on the upper surface of the movable plate, a pressure storage piston cylinder matched with the inner wall of the water storage tank is also arranged on the upper surface of the movable plate, a pressure storage cavity is formed between the outer wall of the water storage piston cylinder and the inner wall of the water storage tank, the pressure storage cavity is connected with a flushing port through a pressurization pipe, and a pressure discharge check valve is arranged on the pressurization pipe;
the water storage piston cylinder is characterized in that a water through hole is formed in the upper end of the water storage piston cylinder, a main water pipe is arranged between the water through hole and the flushing port, a water supply pipe is connected onto the main water pipe, a pool bottom flushing control valve is arranged on the main water pipe, and the aperture of the main water pipe is larger than that of the water supply pipe.
Furthermore, the water supply pipe is connected with the seat ring flushing port through a seat ring flushing pipe, and a seat ring flushing control valve is arranged on the seat ring flushing pipe to control flushing.
Further, the seat ring flushing control valve is arranged at the upper part of the rear side of the toilet bowl;
seat circle washes control valve spare includes first control eccentric runner, seat circle valve and first bolster, the seat circle valve is installed on the seat circle washpipe, be equipped with the closed ejector pin of control on the seat circle valve, the setting of first control eccentric runner corresponds the setting with the ejector pin in seat circle valve top, first bolster sets up in seat circle valve bottom, rotates through first control eccentric runner and presses or release the ejector pin to control seat circle valve switching.
Furthermore, the pool bottom flushing control valve comprises a second control eccentric rotating wheel, a top pressure rod, a pilot valve and a second buffer piece,
the pilot valve is arranged on the main water pipe to control the bottom of the toilet to be flushed, a lever part for controlling the lifting of the valve rod is arranged at the upper end of the valve rod of the pilot valve, and a jacking rod is correspondingly arranged at the upper part of the outer end of the lever part;
the second control eccentric rotating wheel is arranged above the top pressure rod, the top pressure rod is pressed or released through the rotation of the second control eccentric rotating wheel, the top pressure rod presses or releases the lever piece, and the lifting of the valve rod is controlled through the lever piece so as to control the opening or closing of the pilot valve;
the second buffer piece is arranged at the lower part of the outer end of the lever piece, and the pilot valve delays closing time through the buffer action of the second buffer piece.
Furthermore, the first control eccentric rotating wheel and the second control eccentric rotating wheel are arranged on the same rotating shaft, and the first control eccentric rotating wheel and the second control eccentric rotating wheel are provided with axial movable gaps on the rotating shaft;
a mandril guide ring groove is formed in the wheel surface of the first control eccentric rotating wheel and corresponds to the mandril; the ejector rod guide ring groove comprises a right ejector rod guide ring groove and a left ejector rod guide ring groove, and the groove depth of the right ejector rod guide ring groove is greater than that of the left ejector rod guide ring groove;
the wheel face of the second control eccentric rotating wheel is provided with a top pressure rod guide ring groove corresponding to the top pressure rod, the top pressure rod guide ring groove comprises a right top pressure rod guide ring groove and a left top pressure rod guide ring groove, and the groove depth of the right top pressure rod guide ring groove is larger than that of the left top pressure rod guide ring groove.
Furthermore, the toilet bowl is provided with a toilet cover plate, the middle parts of two sides of the toilet cover plate are connected with the end of the rotating shaft through rotating support rods, the rotating shaft is driven to rotate by opening or closing the toilet cover plate, and the rotating shaft controls the rotation of the first control eccentric rotating wheel and the second control eccentric rotating wheel so as to synchronously control the opening or closing of the bottom flushing control valve and the seat flushing control valve.
Furthermore, the air outlet of the pressure increasing pipe is embedded in the water outlet of the main water pipe.
Furthermore, the bottom of the water storage tank is connected with a discharge water leakage pipe, and the outlet of the discharge water leakage pipe is connected with the seat ring flushing opening.
Furthermore, two booster-type water storage tanks are hidden at the rear side of the toilet bowl.
The invention is realized by the following another technical scheme:
a flushing method of a concealed water-saving closestool of a water tank comprises the following steps:
when the toilet is not used, the toilet cover plate is in a closed state, the ejector rod is positioned on the top side of the ejector rod guide ring groove, the pool bottom flushing control valve piece and the seat ring flushing control valve piece are both in a closed state, the water storage piston cylinder in the water storage tank is full of water, and the main water pipe in the front section of the pool bottom flushing control valve piece is also full of water;
when the closestool cover plate is used, the closestool cover plate is opened firstly, the rotating shaft is driven to rotate in the opening process of the closestool cover plate, and the rotating shaft controls the first control eccentric rotating wheel and the second control eccentric rotating wheel to rotate;
in the process, the ejector rod can slide to the bottom side from the top side of the ejector rod guide ring groove through the right ejector rod guide ring groove, when the ejector rod slides to pass through the middle part of the right ejector rod guide ring groove, the seat ring valve is partially opened, and the toilet bowl inner wall forms a water film through flushing of the seat ring flushing port;
in the process, the top pressure rod can slide to the bottom side from the top side of the top pressure rod guide ring groove through the right top pressure rod guide ring groove, and the top pressure rod is not in contact with the groove bottom of the right top pressure rod guide ring groove;
step 2) when the closestool is used up, closing a closestool cover plate, driving a rotating shaft to rotate in the closing process of the closestool cover plate, and controlling the first control eccentric rotating wheel and the second control eccentric rotating wheel to rotate by the rotating shaft;
in the process, the ejector rod can slide to the top side from the bottom side of the ejector rod guide ring groove through the left ejector rod guide ring groove, when the ejector rod slides to pass through the middle part of the left ejector rod guide ring groove, the seat ring valve is completely opened,
in the process, the top pressure rod can slide to the top side from the bottom side of the top pressure rod guide ring groove through the left side top pressure rod guide ring groove, when the top pressure rod slides to pass through the middle part of the left side top pressure rod guide ring groove, the bottom flushing control valve is completely opened, water in the main water pipe can flow into the toilet bowl, meanwhile, water in the water supply pipe also starts to enter the main water pipe, the water quantity in the main water pipe is reduced due to the fact that the aperture of the main water pipe is larger than that of the water supply pipe, and therefore the water pressure above the movable plate is smaller than the elastic force of a pressure spring, the movable plate starts to move upwards and pushes the water in the water storage piston cylinder and the water supply of the water supply pipe to enter a flushing port for flushing through the main water pipe, and meanwhile, the movable plate also pushes the air pressure in the pressure storage cavity to enter the flushing port and flush the toilet bowl in a mixed mode;
step 3) after the toilet cover plate is closed, the seat ring valve is delayed to be closed under the buffering of the first buffer piece, and water in the water supply pipe continuously enters the toilet bowl through the seat ring flushing port to form a deodorant water seal; the pilot valve is closed within 3 seconds after being opened;
and 4) pushing the seat ring valve to reset and close by the first buffer piece, at the moment, replenishing water to the water storage piston cylinder and the main water pipe in the water storage tank again by the water supply pipe, and synchronously moving the movable plate downwards, wherein if the water storage tank with the movable plate leaks water, the movable plate can pressurize the leaked water at the bottom of the water storage tank and discharge the pressurized leaked water into the toilet bowl through the drainage water leakage pipe to replenish water to the deodorant water seal.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention relates to a water tank hidden water-saving closestool, which is characterized in that firstly, a water storage tank protruding out of the existing closestool is removed, the water storage tank is hidden, and the installation space of the closestool can be greatly reduced, so that the manufacturing cost of the closestool can be saved; the pressure storage cavity is arranged in the water storage tank, air pressure is stored through the pressure storage cavity, when the closestool is flushed, the air pressure stored in the pressure storage cavity is mixed with flushing water sprayed in the water storage container (water storage piston cylinder) to form increased flushing pressure, and therefore blowdown of the closestool can be flushed completely more quickly; compared with the flushing closestool with the prior structure, the invention can save more than 50 percent of flushing water.
2. The invention relates to a water-saving closestool with a hidden water tank, which is provided with a rotary closestool cover plate, and when in use, the inner end of the closestool cover plate is pulled upwards; the toilet cover plate is connected with the end of the rotating shaft through the middle parts of the two sides of the toilet cover plate through the rotating support rods, so that the upper end of the toilet cover plate can lean against the back wall, and the lower end of the toilet cover plate is fixed on the opening of the toilet bowl to be used as a backrest;
3. the invention relates to a water tank hidden water-saving closestool, which is characterized in that the middle parts of two sides of a closestool cover plate are connected with the end heads of a rotating shaft through rotating support rods, the rotating shaft is driven to rotate by opening or closing the closestool cover plate, and the rotating shaft controls a first control eccentric rotating wheel and a second control eccentric rotating wheel to rotate so as to synchronously control the opening or closing of a bottom flushing control valve and a seat ring flushing control valve;
4. the invention relates to a water-saving closestool with a concealed water tank, which is characterized in that through the design of guide grooves arranged on a first control eccentric rotating wheel and a second control eccentric rotating wheel,
a mandril guide ring groove is arranged at the corresponding matching part of the wheel surface of the first control eccentric rotating wheel and the mandril; the ejector rod guide ring groove comprises a right ejector rod guide ring groove and a left ejector rod guide ring groove, and the groove depth of the right ejector rod guide ring groove is greater than that of the left ejector rod guide ring groove;
a top pressure rod guide ring groove is formed in the wheel surface of the second control eccentric rotating wheel and corresponds to and is matched with the top pressure rod, the top pressure rod guide ring groove comprises a right top pressure rod guide ring groove and a left top pressure rod guide ring groove, and the groove depth of the right top pressure rod guide ring groove is larger than that of the left top pressure rod guide ring groove; the groove depth design of the top rod guide ring groove and the top rod guide ring groove is the core point for realizing the flushing control of the invention;
when the first control eccentric rotating wheel and the second control eccentric rotating wheel are in a low position or a high position, the valve is in a closed state, the ejector rod slides to the bottom side from the top side of the ejector rod guide ring groove through the right ejector rod guide ring groove, when the ejector rod slides to the middle of the right ejector rod guide ring groove, the seat ring valve is partially opened, and a water film is formed in the inner wall of the toilet bowl through a seat ring flushing port; the ejector rod can slide to the top side from the bottom side of the ejector rod guide ring groove through the left ejector rod guide ring groove, when the ejector rod slides to pass through the middle part of the left ejector rod guide ring groove, the seat ring valve is completely opened,
different from the control step of the first eccentric rotating wheel control, the top pressure rod slides to the bottom side from the top side of the top pressure rod guide ring groove through the right top pressure rod guide ring groove, and the top pressure rod is not in contact with the bottom of the right top pressure rod guide ring groove; when the toilet cover plate is closed, the control function realized by the cooperation of the top pressure rod and the top pressure rod guide ring groove is basically the same as the control function realized by the cooperation of the top rod and the top rod guide ring groove; the top pressure rod can slide to the top side from the bottom side of the top pressure rod guide ring groove through the left side top pressure rod guide ring groove, and when the top pressure rod slides to pass through the middle part of the left side top pressure rod guide ring groove, the tank bottom flushing control valve is completely opened.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of a concealed water-saving toilet according to the present invention;
FIG. 2 is a schematic view of a waterway connection structure of the concealed water-saving toilet of the water tank of the present invention;
FIG. 3 is a schematic structural diagram of a water storage tank of the present invention;
FIG. 4 is a schematic view of the construction of the floor flush control valve and seat ring flush control valve of the present invention;
FIG. 5 is a schematic view of the first controlled eccentric runner or the second controlled eccentric runner of the present invention;
reference numbers and corresponding part names in the drawings:
1-a toilet bowl, 2-a sunken gulf, 3-a sewage discharge siphon pipeline, 4-a flushing port, 5-a seat ring flushing port,
6-a water storage tank, 7-a water storage piston cylinder, 8-a movable plate, 9-a pressure spring, 10-a water storage piston cylinder,
11-pressure storage piston cylinder, 12-pressure storage cavity, 13-pressure increasing pipe, 14-pressure discharging one-way valve, 15-water through hole,
16-main water pipe, 17-water supply pipe, 18-tank bottom flushing control valve, 19-seat flushing pipe, 20-seat flushing control valve,
21-a first control eccentric rotating wheel, 22-a seat ring valve, 23-a first buffer piece, 24-a mandril, 25-a second control eccentric rotating wheel,
26-top pressure rod, 27-pilot valve, 28-second buffer piece, 29-control valve rod, 30-lever piece,
31-rotating shaft, 32-top rod guide ring groove, 33-right side top rod guide ring groove, 34-left side top rod guide ring groove, 35-top pressure rod
A guide ring groove is arranged on the upper surface of the guide ring groove,
36-right press bar guide ring groove, 37-left press bar guide ring groove, 38-toilet cover plate, 39-rotary support bar, 40-row
A leakage water pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in fig. 1-5, the water tank concealed water saving toilet of the present invention comprises a toilet bowl 1, a sink bay 2 at the bottom of the toilet bowl 1 is connected with a sewage siphon pipeline 3, a flushing port 4 is arranged on the side surface of the sink bay 2, a seat flushing port 5 is arranged around the upper opening of the toilet bowl 1, and two pressurized water storage tanks 6 are concealed on the rear side of the toilet bowl 1;
a water storage piston cylinder 7 is arranged in the upper middle part in the water storage tank 6, a movable plate 8 is arranged at the lower part in the water storage tank 6, a pressure spring 9 is arranged on the bottom surface of the movable plate 8, a water storage piston cylinder 10 matched with the water storage piston cylinder 7 is arranged in the middle part on the upper surface of the movable plate 8, a pressure storage piston cylinder 11 matched with the inner wall of the water storage tank 6 is also arranged on the upper surface of the movable plate 8, a pressure storage cavity 12 is formed between the outer wall of the water storage piston cylinder 7 and the inner wall of the water storage tank 6, the pressure storage cavity 12 is connected with a flushing port 4 through a pressure increasing pipe 13, and a pressure discharging check valve 14 is arranged on the pressure increasing pipe 13;
the upper end of the water storage piston cylinder 7 is provided with a limber hole 15, a main water pipe 16 is arranged between the limber hole 15 and the flushing port 4, the main water pipe 16 is connected with a water supply pipe 17 and is provided with a pool bottom flushing control valve 18, and the aperture of the main water pipe 16 is larger than that of the water supply pipe 17. The invention relates to a water tank hidden water-saving closestool, which removes a water storage tank protruded on the existing closestool, hides the water storage tank, and can greatly reduce the installation space of the closestool, thereby saving the manufacturing cost of the closestool; the pressure storage cavity is arranged in the water storage tank, air pressure is stored in the pressure storage cavity, when the closestool is flushed, the air pressure stored in the pressure storage cavity and flushing water sprayed in the water storage container (water storage piston cylinder) are mixed to form increased flushing pressure, and the toilet can be flushed cleanly by discharging sewage more quickly.
The water supply pipe 17 is connected to the seat ring flushing port 5 through a seat ring flushing pipe 19, and a seat ring flushing control valve member 20 is provided on the seat ring flushing pipe 19 to control flushing.
The seat ring flushing of the toilet bowl 1 is mainly supplied by the running water pressure provided by a water supply pipe 17, the blowdown flushing at the bottom of the toilet bowl 1 is mainly provided by pressurizing stored water through a water storage tank 6, and two paths of flushing water are respectively controlled by a seat ring flushing control valve 20 and a tank bottom flushing control valve 18.
When the flush toilet is not used, the toilet cover plate 38 is in a closed state, the ejector rod 24 is positioned at the top side of the ejector rod guide ring groove 32, the ejector rod 26 is positioned at the top side of the ejector rod guide ring groove 35, the pool bottom flushing control valve piece 18 and the seat ring flushing control valve piece 20 are both in a closed state, the water storage piston cylinder 7 in the water storage tank 6 is filled with water, and the main water pipe 16 at the front section of the pool bottom flushing control valve piece 18 is also filled with water;
when the toilet cover plate is used, the toilet cover plate 38 is opened firstly, the toilet cover plate 38 drives the rotating shaft 31 to rotate in the opening process, and the rotating shaft 31 rotates by controlling the first control eccentric rotating wheel 21 and the second control eccentric rotating wheel 25;
in the process, the ejector rod 24 slides to the bottom side from the top side of the ejector rod guide ring groove 32 through the right ejector rod guide ring groove 33, when the ejector rod 24 slides through the middle part of the right ejector rod guide ring groove 33, the seat ring valve 22 is partially opened, and the water is flushed through the seat ring flushing port 5 to form a layer of water film on the inner wall of the toilet bowl 1; after the toilet lid 38 is opened, the first cushion member 23 pushes the seat ring valve 22 to close (so that the water inflow is not too much related to the speed of opening the lid).
In the process, the top pressure rod 26 slides to the bottom side from the top side of the top pressure rod guide ring groove 35 through the right top pressure rod guide ring groove 36, and the top pressure rod 26 is not in contact with the bottom of the right top pressure rod guide ring groove 36;
when the closestool is used up, the closestool cover plate 38 is closed, the closestool cover plate 38 drives the rotating shaft 31 to rotate in the closing process, and the rotating shaft 31 rotates by controlling the first control eccentric rotating wheel 21 and the second control eccentric rotating wheel 25;
in this process, the carrier rod 24 will slide from the bottom side of the carrier rod guide ring groove 32 to the top side through the left carrier rod guide ring groove 34, and when the carrier rod 24 slides through the middle of the left carrier rod guide ring groove 34, the seat ring valve 22 is fully opened,
in the process, the top pressure rod 26 slides from the bottom side of the top pressure rod guide ring groove 35 to the top side through the left side top pressure rod guide ring groove 37, when the top pressure rod 26 slides through the middle of the left side top pressure rod guide ring groove 37, the pool bottom flushing control valve 18 is completely opened, water in the main water pipe 16 flows into the toilet bowl 1, meanwhile, water in the water supply pipe 17 also starts to enter the main water pipe 16, the water amount in the main water pipe 16 is reduced due to the fact that the aperture of the main water pipe 16 is larger than that of the water supply pipe 17, and therefore the water pressure above the movable plate 8 is smaller than the elastic force of the pressure spring 9, the movable plate 8 starts to move upwards and pushes the water in the water storage piston cylinder 7 and the water supply of the water supply pipe 17 to enter the flushing port 4 through the main water pipe 16 for flushing, and meanwhile, the movable plate 8 also pushes the air pressure in the pressure storage cavity 12 to enter the flushing port 4 and flush the toilet bowl through the flushing water mixture;
after the toilet cover plate 38 is closed, the seat ring valve 22 is delayed to be closed under the buffering of the first buffer member 23, and water in the water supply pipe 17 continues to enter the toilet bowl 1 through the seat ring flushing port 5 to form a deodorization water seal; after the pilot valve 27 is opened, the pilot valve can be closed about 3 seconds under the action of the second buffer member 28;
the first buffer member 23 pushes the seat ring valve 22 to reset and close, at this time, the water supply pipe 17 replenishes water to the water storage piston cylinder 7 and the main water pipe 16 in the water storage tank 6, the movable plate 8 also synchronously moves downwards, if water leakage exists in the water storage tank 6 of the movable plate 8, the movable plate 8 pressurizes the water leakage at the bottom of the water storage tank 6 and discharges the water leakage into the toilet bowl 1 through the drainage water leakage pipe 40 to replenish water for the deodorization water seal. And then may loop through step 1 to begin reuse.
Compared with the flushing closestool with the prior structure, the invention can save more than 50 percent of flushing water.
Example 2
As shown in figures 1-5, the invention relates to a water-saving closestool with a concealed water tank, on the basis of embodiment 1, a seat ring flushing control valve 20 is arranged at the upper part of the rear side of a toilet bowl 1; the seat ring flushing control valve element 20 can be realized by adopting a valve with a plurality of pressing structures, one of the pressing structures is adopted in the embodiment, the seat ring flushing control valve element 20 comprises a first control eccentric rotating wheel 21, a seat ring valve 22 and a first buffer piece 23, the seat ring valve 22 is installed on the seat ring flushing pipe 19, a push rod 24 for controlling closing is arranged on the seat ring valve 22, the first control eccentric rotating wheel 21 is arranged above the seat ring valve 22 and corresponds to the push rod 24, the first buffer piece 23 is arranged at the bottom of the seat ring valve 22, and the push rod 24 is pressed or released by rotating the first control eccentric rotating wheel 21, so that the opening and closing of the seat ring valve 22 are controlled.
Example 3
As shown in fig. 1-5, according to the water tank concealed water-saving toilet of the present invention, on the basis of embodiment 1, the bottom flushing control valve 18 can be implemented by using a variety of valves with press-type structures, or can be implemented by using a press rod type, which is similar to a water pressing structure of a water pressing well, and the communication between the side inlet and the bottom outlet of the valve is controlled by using a valve plug body, in this embodiment, one of the valves is used, and the bottom flushing control valve 18 is also arranged at the upper portion of the rear side of the toilet bowl 1; the tank bottom flushing control valve 18 comprises a second control eccentric wheel 25, a top pressure rod 26, a pilot valve 27 and a second buffer 28,
the pilot valve 27 is arranged on the main water pipe 16 to control the flushing of the bottom of the toilet bowl 1, a lever member 30 for controlling the lifting of the valve rod 29 is arranged at the upper end of the valve rod 29 of the pilot valve 27, and a top pressure rod 26 is correspondingly arranged at the upper part of the outer end of the lever member 30;
the second control eccentric rotating wheel 25 is arranged above the top pressure rod 26, the top pressure rod 26 is pressed or released through the rotation of the second control eccentric rotating wheel 25, the top pressure rod 26 presses or releases the lever member 30, and the valve rod 29 is controlled to lift through the lever member 30 so as to control the pilot valve 27 to open or close;
the second buffer member 28 is disposed at the lower portion of the outer end of the lever member 30, and the pilot valve 27 delays the closing time by the buffering action of the second buffer member 28.
Example 4
As shown in fig. 1-5, the water saving toilet with concealed cistern of the present invention is based on the above-mentioned embodiment, the first control eccentric wheel 21 and the second control eccentric wheel 25 are installed on the same rotating shaft 31, installed on one rotating shaft 31 for synchronous control, and the rotating shaft 31 is connected with the toilet cover 38 in control, so that the rotating shaft 31 can be controlled to rotate by operating the toilet cover 38 in linkage, the first control eccentric wheel 21 and the second control eccentric wheel 25 are installed with axial movable gap on the rotating shaft 31; because the ejector rod 24 needs to annularly slide in the ejector rod guide ring groove 32, and the ejector rod 24 cannot transversely move, the first control eccentric rotating wheel 21 needs to be provided with an axially movable gap on the rotating shaft 31; the ejector rod 24 can annularly slide in the ejector rod guide ring groove 32 by the movable gap design of the first control eccentric rotating wheel 21, and the movable gap design of the second control eccentric rotating wheel 25 also has the same reason.
A mandril guide ring groove 32 is arranged at the corresponding matching part of the wheel surface of the first control eccentric rotating wheel 21 and the mandril 24; the ejector pin guide ring groove 32 comprises a right ejector pin guide ring groove 33 and a left ejector pin guide ring groove 34, and the groove depth of the right ejector pin guide ring groove 33 is larger than that of the left ejector pin guide ring groove 34.
Correspond the cooperation department with roof pressure pole 26 on the wheel face of second control eccentric runner 25 and be equipped with roof pressure pole guide ring groove 35, roof pressure pole guide ring groove 35 includes right side roof pressure pole guide ring groove 36 and left side roof pressure pole guide ring groove 37, the groove depth of right side roof pressure pole guide ring groove 36 is greater than the groove depth of left side roof pressure pole guide ring groove 37.
The toilet bowl 1 is provided with a toilet cover plate 38, the middle parts of two sides of the toilet cover plate 38 are connected with the end of a rotating shaft 31 through rotating support rods 39, the rotating shaft 31 is driven to rotate by opening or closing the toilet cover plate 38, and the rotating shaft 31 rotates by controlling a first control eccentric rotating wheel 21 and a second control eccentric rotating wheel 25, so that the opening or closing of the bottom flushing control valve 18 and the seat flushing control valve 20 is synchronously controlled.
The rotary closestool cover plate is arranged, and when the closestool cover plate is used, the inner end of the closestool cover plate is pulled upwards; the toilet cover plate is connected with the end of the rotating shaft through the middle parts of the two sides through the rotating support rods, so that the upper end of the toilet cover plate can lean against the back wall, and the lower end of the toilet cover plate is fixed on the opening of the toilet bowl to be used as a backrest.
The middle parts of the two sides of the toilet cover plate are connected with the end heads of the rotating shaft through the rotating support rods, the toilet cover plate is opened or closed, so that the rotating shaft is driven to rotate, the rotating shaft controls the first control eccentric rotating wheel and the second control eccentric rotating wheel to rotate, and the bottom flushing control valve piece and the seat flushing control valve piece are synchronously controlled to be opened or closed.
Example 5
As shown in figures 1-5, the water-saving toilet with concealed cistern according to the present invention is based on the above embodiment, the outlet of the pressure increasing pipe 13 is inserted into the outlet of the main water pipe 16. The bottom of the water storage tank 6 is connected with a discharge water leakage pipe 40, and the outlet of the discharge water leakage pipe 40 is connected with the seat ring flushing port 5. After the toilet cover 38 is closed, the first buffer member 23 pushes the seat ring valve 22 to be reset and closed, the second buffer member 28 also pushes the lever member 30 to reset and close the pilot valve 27, at this time, the water supply pipe 17 replenishes water to the water storage piston cylinder 7 and the main water pipe 16 in the water storage tank 6, the movable plate 8 also synchronously moves downwards, and the movable plate 8 pressurizes the water leakage at the bottom of the water storage tank 6 and discharges the water leakage into the toilet bowl 1 through the discharge water leakage pipe 40 to form a deodorization water seal (with the depth of about 5 cm).
The design purpose of this embodiment is, after the urinal is washed totally, because the siphon effect, generally can only deposit few deodorant water seal in the trapway, generally can not reach deodorant effect, if the closestool frequency of use is low, the water seal evaporates easily, just can not play deodorant effect more, has sufficient deodorant water seal in order to guarantee the trapway, can also effectively utilize the percolating water of storage water tank 6 bottom.
Example 6
As shown in fig. 1 to 5, a flush method of a concealed water saving toilet of a water tank includes the steps of:
when the toilet is not used, the toilet cover plate 38 is in a closed state, the ejector rod 24 is positioned at the top side of the ejector rod guide ring groove 32, the ejector rod 26 is positioned at the top side of the ejector rod guide ring groove 35, the pool bottom flushing control valve piece 18 and the seat ring flushing control valve piece 20 are both in a closed state, the water storage piston cylinder 7 in the water storage tank 6 is full of water, and the main water pipe 16 at the front section of the pool bottom flushing control valve piece 18 is also full of water;
when the toilet seat cover is used in the step 1, the toilet seat cover 38 is opened firstly, the toilet seat cover 38 drives the rotating shaft 31 to rotate in the opening process, and the rotating shaft 31 rotates by controlling the first control eccentric rotating wheel 21 and the second control eccentric rotating wheel 25;
in the process, the ejector rod 24 slides to the bottom side from the top side of the ejector rod guide ring groove 32 through the right ejector rod guide ring groove 33, when the ejector rod 24 slides through the middle part of the right ejector rod guide ring groove 33, the seat ring valve 22 is partially opened, and the water is flushed through the seat ring flushing port 5 to form a layer of water film on the inner wall of the toilet bowl 1; after the toilet cover 38 is opened, the first cushion 23 pushes the seat ring valve 22 to close (thus ensuring that the water inflow does not have much relation with the cover opening speed).
In the process, the top pressure rod 26 slides to the bottom side from the top side of the top pressure rod guide ring groove 35 through the right top pressure rod guide ring groove 36, and the top pressure rod 26 is not in contact with the bottom of the right top pressure rod guide ring groove 36;
in this process, the lift pin 24 will slide from the bottom side of the lift pin guide ring groove 32 to the top side through the left lift pin guide ring groove 34, and when the lift pin 24 slides through the middle of the left lift pin guide ring groove 34, the seat ring valve 22 is fully opened,
in the process, the top pressure rod 26 slides from the bottom side of the top pressure rod guide ring groove 35 to the top side through the left side top pressure rod guide ring groove 37, when the top pressure rod 26 slides through the middle part of the left side top pressure rod guide ring groove 37, the pool bottom flushing control valve 18 is completely opened, water in the main water pipe 16 flows into the toilet bowl 1, meanwhile, water in the water supply pipe 17 also starts to enter the main water pipe 16, the water quantity in the main water pipe 16 is reduced due to the fact that the aperture of the main water pipe 16 is larger than that of the water supply pipe 17, so that the water pressure above the movable plate 8 is smaller than the elastic force of the pressure spring 9, the movable plate 8 starts to move upwards and pushes water in the water storage piston cylinder 7 and water in the water supply pipe 17 to enter the flushing port 4 through the main water pipe 16 for flushing, and simultaneously, the movable plate 8 also pushes the air pressure in the pressure storage cavity 12 to enter the flushing port 4 and flush the toilet bowl in a mixed mode;
In the embodiment, if the sewage is discharged during flushing and is more and the flushing is not clean, the toilet can stay for 2-5 seconds when the closed toilet cover plate 38 is half-opened, so that the water supply pipe 17 can provide more flushing water for the flushing port 4 and the seat flushing port 5 at the same time.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a hidden water-saving toilet of water tank, includes toilet bowl (1), the heavy water bay (2) of toilet bowl (1) bottom is connected with blowdown siphon pipeline (3), and heavy water bay (2) side is equipped with wash-up mouth (4), toilet bowl (1) upper shed encircles and is equipped with seat circle and washes mouthful (5), its characterized in that:
at least one booster-type water storage tank (6) is hidden at the rear side of the toilet bowl (1);
a water storage piston cylinder (7) is arranged in the middle of the upper portion in the water storage tank (6), a movable plate (8) is arranged at the lower portion in the water storage tank (6), a pressure spring (9) is arranged on the bottom surface of the movable plate (8), a water storage piston cylinder (10) matched with the water storage piston cylinder (7) is arranged in the middle of the upper surface of the movable plate (8), a pressure storage piston cylinder (11) matched with the inner wall of the water storage tank (6) is further arranged on the upper surface of the movable plate (8), a pressure storage cavity (12) is formed between the outer wall of the water storage piston cylinder (7) and the inner wall of the water storage tank (6), the pressure storage cavity (12) is connected with a flushing port (4) through a pressurization pipe (13), a pressure discharge check valve (14) is arranged on the pressurization pipe (13), and an air outlet of the pressurization pipe (13) is embedded and sleeved in an water outlet of a main water pipe (16);
a water through hole (15) is formed in the upper end of the water storage piston cylinder (7), a main water pipe (16) is arranged between the water through hole (15) and the flushing port (4), a water supply pipe (17) is connected to the main water pipe (16), a pool bottom flushing control valve (18) is arranged on the main water pipe, and the aperture of the main water pipe (16) is larger than that of the water supply pipe (17);
the water supply pipe (17) is connected with the seat ring flushing port (5) through a seat ring flushing pipe (19), and a seat ring flushing control valve piece (20) is arranged on the seat ring flushing pipe (19) to control flushing;
the bottom of the water storage tank (6) is connected with a discharge water leakage pipe (40), and the outlet of the discharge water leakage pipe (40) is connected with the seat ring flushing opening (5).
2. The concealed water saving toilet of water tank according to claim 1, wherein: the seat ring flushing control valve member (20) is arranged at the upper part of the rear side of the toilet bowl (1);
the seat ring flushing control valve piece (20) comprises a first control eccentric rotating wheel (21), a seat ring valve (22) and a first buffering piece (23), the seat ring valve (22) is installed on a seat ring flushing pipe (19), a control closed ejector rod (24) is arranged on the seat ring valve (22), the first control eccentric rotating wheel (21) is arranged above the seat ring valve (22) and corresponds to the ejector rod (24), the first buffering piece (23) is arranged at the bottom of the seat ring valve (22), and the first control eccentric rotating wheel (21) is rotated to press or release the ejector rod (24), so that the opening and closing of the seat ring valve (22) are controlled.
3. The concealed water saving toilet of claim 2, wherein: the tank bottom flushing control valve member (18) is also arranged at the upper part of the rear side of the toilet bowl (1);
the pool bottom flushing control valve (18) comprises a second control eccentric rotating wheel (25), a top pressure rod (26), a pilot valve (27) and a second buffer piece (28),
the pilot valve (27) is arranged on the main water pipe (16) to control the bottom of the toilet bowl (1) to be flushed, a lever member (30) for controlling the lifting of the valve rod (29) is arranged at the upper end of the valve rod (29) of the pilot valve (27), and a top pressure rod (26) is correspondingly arranged at the upper part of the outer end of the lever member (30);
the second control eccentric rotating wheel (25) is arranged above the top pressure rod (26), the top pressure rod (26) is pressed or released through the rotation of the second control eccentric rotating wheel (25), the top pressure rod (26) presses or releases the lever member (30), and the valve rod (29) is controlled to lift through the lever member (30) so as to control the pilot valve (27) to open or close;
the second buffer piece (28) is arranged at the lower part of the outer end of the lever piece (30), and the closing time of the pilot valve (27) is delayed through the buffer action of the second buffer piece (28).
4. The concealed water saving toilet of claim 3, wherein: the first control eccentric rotating wheel (21) and the second control eccentric rotating wheel (25) are arranged on the same rotating shaft (31), and the first control eccentric rotating wheel (21) and the second control eccentric rotating wheel (25) are provided with axial movable gaps on the rotating shaft (31);
a mandril guide ring groove (32) is arranged at the corresponding matching part of the wheel surface of the first control eccentric rotating wheel (21) and the mandril (24); the ejector rod guide ring groove (32) comprises a right ejector rod guide ring groove (33) and a left ejector rod guide ring groove (34), and the groove depth of the right ejector rod guide ring groove (33) is greater than that of the left ejector rod guide ring groove (34);
correspond cooperation department with roof pressure pole (26) on the wheel face of second control eccentric runner (25) and be equipped with roof pressure pole guide ring groove (35), roof pressure pole guide ring groove (35) include right side roof pressure pole guide ring groove (36) and left side roof pressure pole guide ring groove (37), the groove depth of right side roof pressure pole guide ring groove (36) is greater than the groove depth of left side roof pressure pole guide ring groove (37).
5. The concealed water saving toilet of claim 4, wherein: the toilet bowl is characterized in that a toilet cover plate (38) is arranged on the toilet bowl body (1), the middle parts of two sides of the toilet cover plate (38) are connected with the end of a rotating shaft (31) through rotating support rods (39), the rotating shaft (31) is driven to rotate by opening or closing the toilet cover plate (38), and the rotating shaft (31) rotates by controlling a first control eccentric rotating wheel (21) and a second control eccentric rotating wheel (25), so that the opening or closing of a bottom flushing control valve piece (18) and a seat flushing control valve piece (20) is synchronously controlled.
6. The concealed water saving toilet of water tank according to claim 1, wherein: two booster-type water storage tanks (6) are hidden at the rear side of the toilet bowl (1).
7. A concealed water-saving toilet flushing method based on claim 5, which comprises the following steps:
when the toilet is not used, the toilet cover plate (38) is in a closed state, the ejector rod (24) is positioned at the top side of the ejector rod guide ring groove (32), the ejector rod (26) is positioned at the top side of the ejector rod guide ring groove (35), the pool bottom flushing control valve piece (18) and the seat ring flushing control valve piece (20) are both in a closed state, the water storage piston cylinder (7) in the water storage tank (6) is filled with water, and the main water pipe (16) in the front section of the pool bottom flushing control valve piece (18) is also filled with water;
when the closestool cover plate is used in the step 1), the closestool cover plate (38) is opened firstly, the closestool cover plate (38) drives the rotating shaft (31) to rotate in the opening process, and the rotating shaft (31) controls the first control eccentric rotating wheel (21) and the second control eccentric rotating wheel (25) to rotate;
in the process, the ejector rod (24) can slide to the bottom side from the top side of the ejector rod guide ring groove (32) through the right ejector rod guide ring groove (33), when the ejector rod (24) slides to pass through the middle part of the right ejector rod guide ring groove (33), the seat ring valve (22) is partially opened, and the inner wall of the toilet bowl (1) forms a layer of water film through flushing of the seat ring flushing port (5);
in the process, the top pressure rod (26) slides to the bottom side from the top side of the top pressure rod guide ring groove (35) through the right top pressure rod guide ring groove (36), and the top pressure rod (26) is not in contact with the groove bottom of the right top pressure rod guide ring groove (36);
step 2) when the closestool is used up, closing the closestool cover plate (38), driving the rotating shaft (31) to rotate by the closestool cover plate (38) in the closing process, and controlling the first control eccentric rotating wheel (21) and the second control eccentric rotating wheel (25) to rotate by the rotating shaft (31);
in the process, the ejector rod (24) slides to the top side from the bottom side of the ejector rod guide ring groove (32) through the left ejector rod guide ring groove (34), when the ejector rod (24) slides to pass through the middle part of the left ejector rod guide ring groove (34), the seat ring valve (22) is completely opened,
in the process, the top pressure rod (26) slides to the top side from the bottom side of the top pressure rod guide ring groove (35) through the left top pressure rod guide ring groove (37), when the top pressure rod (26) slides to pass through the middle part of the left top pressure rod guide ring groove (37), the pool bottom flushing control valve (18) is completely opened, water in the main water pipe (16) flows into the toilet bowl (1), meanwhile, water in the water supply pipe (17) also starts to enter the main water pipe (16), the water quantity in the main water pipe (16) is reduced due to the fact that the aperture of the main water pipe (16) is larger than that of the water supply pipe (17), so that the water pressure above the movable plate (8) is smaller than the elastic force of the pressure spring (9), the movable plate (8) starts to move upwards and pushes the water in the water storage piston cylinder (7) and the water supply of the water supply pipe (17) to enter the flushing port (4) for flushing through the main water pipe (16), and meanwhile, the movable plate (8) also pushes the air pressure in the pressure storage pressure cavity (12) to enter the flushing port (4) and the mixed flushing water for flushing toilet;
step 3) after the toilet cover plate (38) is closed, the seat ring valve (22) is delayed to be closed under the buffering of the first buffering piece (23), and water of the water supply pipe (17) continues to enter the toilet bowl (1) through the seat ring flushing port (5) to form a deodorant water seal; the pilot valve (27) is closed within 3 seconds after being opened;
and 4) pushing the seat ring valve (22) to reset and close by the first buffer piece (23), supplementing water to a water storage piston cylinder (7) and a main water pipe (16) in the water storage tank (6) by the water supply pipe (17) at the moment, synchronously moving the movable plate (8) downwards, and if water leakage exists in the water storage tank (6) of the movable plate (8), pressurizing the water leakage at the bottom of the water storage tank (6) by the movable plate (8) and discharging the water into the toilet bowl (1) through the water discharge and leakage pipe (40) to supplement water for deodorization.
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| CN201710590724.XA CN107165245B (en) | 2017-07-19 | 2017-07-19 | Water-saving closestool with hidden water tank and flushing method |
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| CN201710590724.XA CN107165245B (en) | 2017-07-19 | 2017-07-19 | Water-saving closestool with hidden water tank and flushing method |
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| CN107165245B true CN107165245B (en) | 2022-10-21 |
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| CN108222156A (en) * | 2017-12-28 | 2018-06-29 | 厦门建霖健康家居股份有限公司 | A kind of low-pressure washing system with biswitch control |
| CN109356255B (en) * | 2018-12-12 | 2024-08-27 | 史建城 | Foot-operated linkage siphon toilet |
| CN110179673A (en) * | 2019-05-08 | 2019-08-30 | 曾庆林 | A kind of medical patient vomiting auxiliary reception device |
| BR102020001185A2 (en) * | 2020-01-18 | 2021-08-03 | Tiago Henrique Gomes De Lima | ROTARY COVER / SANITARY SEAT OPENING |
| CN112431275A (en) * | 2020-12-18 | 2021-03-02 | 陈琇 | Closestool free of scale removal |
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