CN111980128A - Water-pressure-free water-tank-free squatting pan - Google Patents

Water-pressure-free water-tank-free squatting pan Download PDF

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Publication number
CN111980128A
CN111980128A CN201910475071.XA CN201910475071A CN111980128A CN 111980128 A CN111980128 A CN 111980128A CN 201910475071 A CN201910475071 A CN 201910475071A CN 111980128 A CN111980128 A CN 111980128A
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water
pressure
tank
spring
low
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CN201910475071.XA
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CN111980128B (en
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胡开鑫
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Ningbo University
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Ningbo University
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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03DWATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00Other 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
    • E03D11/02Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
    • E03D11/04Bowls of flat shape with only slightly inclined bottom ; Squat-type closets
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03DWATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00Special constructions of flushing devices, e.g. closed flushing system
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03DWATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/02Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03DWATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/02Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor
    • E03D5/08Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor directly by the foot 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

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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)
  • Mechanical Engineering (AREA)
  • Sanitary Device For Flush Toilet (AREA)

Abstract

A water-pressure-free water tank-free squatting pan relates to a flushing toilet, in particular to a water-pressure-free water tank-free squatting pan. The method is characterized in that: comprises a toilet bowl, a supporting frame, a water pressure increasing device, a sprayer and a water control system, wherein a common siphon type flushing toilet bowl is used along and is provided with a platform frame, a toilet groove and two hidden storage boxes; a water pressure increasing device and a water control system are arranged in the water tank; the water pressure increasing device is provided with a piston device, a lever, a pedal key and a spring, wherein the pedal key is stepped by feet, the piston device is lifted upwards, the spring is compressed and is internally provided with a water flow one-way valve, and water in the water storage tank is sucked into a water pressure cylinder; when the pedal key is released, the hydraulic cylinder is pressed into the sprayer to flush the chamber pot; the squatting pan does not depend on the water pressure of a water source, does not need to be externally provided with a high water pressure tank, stores the elastic potential energy of the spring by utilizing the treading pressure of a person, can flush the convenient groove by converting the elastic force of the spring into the high pressure of water, and provides a squatting pan which has small occupied space, is simple and convenient to use, is sanitary, tidy and attractive in appearance for a low water pressure area or place.

Description

Water-pressure-free water-tank-free squatting pan
Technical Field
The invention relates to a squatting pan, in particular to a squatting pan without water pressure and water tank.
Background
The toilet bowl is comfortable and convenient to use, is a necessary product for people to live, but a place to be improved still exists, the common toilet bowl and the multi-purpose toilet bowl are in contact hygiene problems when the toilet bowl is used, particularly the toilet bowl in a public place is worried by people, so that the contact hygiene problems are effectively solved by the squatting pan, the squatting pan needs water with certain water pressure for flushing, a high-level water tank is required to be arranged outside a low water pressure place, the space is occupied more, and the squatting pan which can be installed and used in the low water pressure area and has no water tank is designed for solving the difficulties effectively.
Disclosure of Invention
In view of the technical defects, the invention aims to provide a simple, convenient and beautiful squatting pan without a large water pressure and a water tank for a low-water-pressure area.
The invention adopts the following scheme to realize the purpose of the invention:
a water-pressure-free and water-tank-free squatting pan comprises a pan bucket 1, a supporting frame 2, a water pressure increasing device 3, a sprayer 4 and a water control system 5.
The toilet bowl 1 is a common siphon type flushing toilet bowl and is positioned at the middle lower part of the squatting pan.
The supporting frame 2 comprises a platform frame 2-1, a toilet groove 2-2 and a hidden box 2-3; the platform frame 2-13 comprises a toilet notch 2-1-1, a small hole 3-9 and a spring column sleeve 3-6; the two hidden storage boxes 2-3 are positioned at the left side and the right side of the excrement tank 2-2, and a water pressure increasing device 3 and a water control system 5 are hidden in the hidden storage boxes; the toilet 1 is positioned at the lower half part of the toilet groove 2-2.
The water pressure increasing device 3 comprises a piston device 3-1, a lever 3-2, a pedal key 3-3, a lever supporting point 3-4, a spring 3-5, a spring column sleeve 3-6, a water pressure cylinder 3-7 and a limiting supporting rod 3-8; the piston device 3-1 comprises hydraulic pistons 3-1-1, spring columns 3-1-2, n-shaped piston connecting rods 3-1-3 and cylindrical buckles 3-1-4, wherein two hydraulic pistons 3-1-1 are arranged in each piston device 3-1, two adjacent hydraulic pistons 3-1-1 are connected and fixed through the n-shaped piston connecting rods 3-1-3, and the cylindrical buckles 3-1-4 are arranged in the middles of the cross rods of the n-shaped piston connecting rods 3-1-3; two spring columns 3-1-2 are arranged on each hydraulic piston 3-1-1, each spring column 3-1-2 is sleeved with a spring and sleeved in a spring column sleeve 3-6 on the platform frame 2-1, and each hydraulic piston 3-1-1 can only move up and down; the cylinder in the middle of the hydraulic piston 3-1-1 is made of stainless steel, the periphery of the cylinder is provided with a silica gel sleeve, and the cylinder is tightly contacted with the hydraulic cylinder 3-7 without water leakage; the lever 3-2 comprises a lever rotating support hole 3-4-1, a sliding groove 3-2-1 and a sliding groove 3-2-2, a cylindrical buckle 3-1-4 is embedded into the sliding groove 3-2-1, a pedal key 3-3 chain rod passes through a small hole 3-9 in the platform frame 2-13, and the cylindrical buckle 3-3-1 at the lower end is embedded into the sliding groove 3-2-2. When a foot is stepped on the foot key 3-3, the lever 3-2 rotates around a lever supporting point 3-4, the two hydraulic pistons 3-1-1 are lifted upwards along with the rotation, and the spring 3-5 is compressed to form downward elastic force.
The sprayer 4 comprises a water inlet 4-1, a spraying port 4-2 and an internal through hole, wherein the water inlet and the spraying port are arranged on two sides of the sprayer; the sprayer 4 is arranged on the upper edge of the urinal 2-2, the water inlet 4-1 is aligned with the high-pressure water flow outlet 5-10 in the water control system 5 in a sealing way, and the spraying port 4-2 aims at the inner edge of the urinal 2-2 bucket.
The water control system 5 is divided into a left set of facilities and a right set of facilities, wherein the left set of facilities comprises a water inlet pipe 5-1, a water level automatic control valve 5-2, a low-pressure water one-way valve 5-3, a low-pressure water flow through valve 5-4, a water storage tank 5-5, a pressure increasing tank 5-6, a high-pressure water flow through valve 5-7, a high-pressure one-way valve 5-8, a low-pressure water flow through pipe 5-9 and a high-pressure water flow outlet 5-10; the water inlet pipe 5-1 is connected with an external water inlet pipe, the water level automatic control valve 5-2 controls the water inlet of the water inlet pipe 5-1, and the water inlet is automatically closed when external low-pressure water slowly flows into the water storage tank 5-5 to reach a certain height; the water storage tank 5-5 is an open water tank, the low-pressure water flow through valve 5-4 enlarges the water storage volume, the pressurizing tank 5-6 is sealed, and the water storage tank 5-5 is communicated with the pressurizing tank 5-6 only through the low-pressure water one-way valve 5-3; the low-pressure water one-way valve 5-3 limits the water to flow from the water storage tank 5-5 to the pressurizing tank 5-6 in one way; high-pressure water of the pressurizing box 5-6 is flushed into the sprayer 4 from the high-pressure water through valve 5-7 through the high-pressure one-way valve 5-8 and the high-pressure water outlet 5-10; the left set of facilities is completely the same and symmetrically arranged except that a water inlet pipe 5-1 and a water level automatic control valve 5-2 are not arranged, and the bottoms of the left water storage tank 5-5 and the right water storage tank are communicated by a low-pressure water through pipe 5-9.
The heel is stepped on the foot key 3-3, the piston device 3-1 is lifted upwards, the spring 3-5 is compressed, and water in the water storage tank 5-5 is sucked into the hydraulic cylinder 3-7 through the low-pressure water one-way valve 5-3; when the pedal key 3-3 is released, the hydraulic piston 3-1-1 is pressed downwards under the action of the elastic force of the spring 3-5, and the high-pressure water in the pressurizing box 5-6 is pressed into the sprayer 4 through the high-pressure one-way valve 5-8 and the high-pressure water outlet 5-10.
The invention has the beneficial effects that: the squatting pan does not depend on the water pressure of a water source, does not need to be provided with an external water pressure tank, stores the elastic potential energy of the spring by utilizing the treading pressure of a person, converts the elastic potential energy of the spring into the high pressure of water, can flush the convenient groove, and provides the squatting pan which has small occupied space, is simple and convenient to use, is sanitary, tidy and attractive in appearance for a low-water-pressure area or place.
Drawings
Fig. 1 is an overall appearance view of the water pressure-free and water tank-free squatting pan of the invention.
Fig. 2 is an overall internal structure view of the water pressure-free and water tank-free squatting pan of the invention.
Fig. 3 is an overall structure view of the support frame of the present invention.
FIG. 4 is a sectional view of the internal structure of the water storage tank of the present invention.
Fig. 5 is a sectional view showing the internal structure of the high pressure tank of the present invention.
Fig. 6 is a structural view of a supercharging facility of the present invention.
Fig. 7 is a structure diagram of the silica gel one-way valve of the present invention.
Fig. 8 is a block diagram of the sprayer of the present invention.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
the invention relates to a water-pressure-free and water-tank-free squatting pan which comprises a pan bucket 1, a supporting frame 2, a water increasing pressure device 3, a sprayer 4 and a water control system 5. The structure is shown in fig. 1.
Example 1
The toilet bowl 1 is a common siphon type flushing toilet bowl. The mounting position is shown in fig. 1.
The supporting frame 2 comprises a platform frame 2-1, a toilet groove 2-2 and a hidden box 2-3; the platform frame 2-13 comprises a toilet notch 2-1-1, a small hole 3-9 and a spring column sleeve 3-6; the two hidden storage boxes 2-3 are positioned at the left side and the right side of the excrement tank 2-2, and a water pressure increasing device 3 and a water control system 5 are hidden in the hidden storage boxes; the toilet 1 is positioned at the lower half part of the toilet groove 2-2. The structure of which is shown in fig. 2.
The water pressure increasing device 3 comprises a piston device 3-1, a lever 3-2, a pedal key 3-3, a lever supporting point 3-4, a spring 3-5, a spring column sleeve 3-6, a water pressure cylinder 3-7 and a limiting supporting rod 3-8; the piston device 3-1 comprises hydraulic pistons 3-1-1, spring columns 3-1-2, n-shaped piston connecting rods 3-1-3 and cylindrical buckles 3-1-4, wherein two hydraulic pistons 3-1-1 are arranged in each piston device 3-1, two adjacent hydraulic pistons 3-1-1 are connected and fixed through the n-shaped piston connecting rods 3-1-3, and the cylindrical buckles 3-1-4 are arranged in the middles of the cross rods of the n-shaped piston connecting rods 3-1-3; two spring columns 3-1-2 are arranged on each hydraulic piston 3-1-1, each spring column 3-1-2 is sleeved with a spring and sleeved in a spring column sleeve 3-6 on the platform frame 2-1, and each hydraulic piston 3-1-1 can only move up and down; the cylinder in the middle of the hydraulic piston 3-1-1 is made of stainless steel, the periphery of the cylinder is provided with a silica gel sleeve, and the cylinder is tightly contacted with the hydraulic cylinder 3-7 without water leakage; the lever 3-2 comprises a lever rotating support hole 3-4-1, a sliding groove 3-2-1 and a sliding groove 3-2-2, and the cylindrical buckle 3-1-4 is embedded into the sliding groove 3-2-1; the chain rod of the foot key 3-3 passes through the small hole 3-9 in the platform frame 2-13, and the cylindrical buckle 3-3-1 at the lower end is embedded into the sliding groove 3-2-2. When a foot is stepped on the foot key 3-3, the lever 3-2 rotates around a lever supporting point 3-4, the two hydraulic pistons 3-1-1 are lifted upwards along with the rotation, and the spring 3-5 is compressed to form downward elastic force. The structure is shown in fig. 2, 4, 5 and 6.
The sprayer 4 comprises a water inlet 4-1, a spraying port 4-2 and an internal through hole, wherein the water inlet and the spraying port are arranged on two sides of the sprayer; the sprayer 4 is arranged on the upper edge of the urinal 2-2, the water inlet 4-1 is aligned with the high-pressure water flow outlet 5-10 in the water control system 5 in a sealing way, and the spraying port 4-2 aims at the inner edge of the urinal 2-2 bucket. The installation position is shown in fig. 1 and 3, and the structure is shown in fig. 8.
The water control system 5 is divided into a left set of facilities and a right set of facilities, wherein the left set of facilities comprises a water inlet pipe 5-1, a water level automatic control valve 5-2, a low-pressure water one-way valve 5-3, a low-pressure water flow through valve 5-4, a water storage tank 5-5, a pressure increasing tank 5-6, a high-pressure water flow through valve 5-7, a high-pressure one-way valve 5-8, a low-pressure water flow through pipe 5-9 and a high-pressure water flow outlet 5-10; the water inlet pipe 5-1 is connected with an external water inlet pipe, the water level automatic control valve 5-2 controls the water inlet of the water inlet pipe 5-1, and the water inlet is automatically closed when external low-pressure water slowly flows into the water storage tank 5-5 to reach a certain height; the water storage tank 5-5 is an open water tank and communicated with the atmosphere, the low-pressure water flow through valve 5-4 enlarges the water storage volume, the pressurizing tank 5-6 is a sealed water container, and the water storage tank 5-5 is communicated with the pressurizing tank 5-6 only through the low-pressure water one-way valve 5-3; the low-pressure water one-way valve 5-3 limits the water to flow from the water storage tank 5-5 to the pressurizing tank 5-6 in one way; high-pressure water of the pressurizing box 5-6 is flushed into the sprayer 4 from the high-pressure water through valve 5-7 through the high-pressure one-way valve 5-8 and the high-pressure water outlet 5-10; the left set of facilities is completely the same and symmetrically arranged except that a water inlet pipe 5-1 and a water level automatic control valve 5-2 are not arranged, and the bottoms of the left water storage tank 5-5 and the right water storage tank are communicated by a low-pressure water through pipe 5-9. The structure is shown in fig. 3, 4, 5 and 7.
The invention relates to a water pressure-free and water tank-free squatting pan which is squat on a platform frame 2-1 when in use, the heel of the squatting pan is stepped on a pedal key 3-3, a piston 3-1 is lifted upwards, a spring 3-5 is compressed, and water in a water storage tank 5-5 is sucked into a water cylinder 3-7 through a low-pressure water one-way valve 5-3; after the use is finished, the water pressure piston 3-1-1 is downwards extruded under the action of the elastic force of the spring 3-5, the water pressure in the pressurizing box 5-6 is enhanced, and high-pressure water flows into the sprayer 4 from the high-pressure water flow through door 5-7 through the high-pressure one-way valve 5-8 and the high-pressure water flow outlet 5-10, so that the toilet bowl 1 is effectively flushed.
Although the terms urinal, support frame, water booster, shower, water control system, platform rack, urinal, closets, pistols, foot keys, hydraulic cylinder, shower, hydraulic piston, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.

Claims (4)

1. The utility model provides a no water pressure does not have water tank squatting pan which characterized in that: the toilet bowl comprises a toilet bowl 1, a supporting frame 2, a water pressure increasing device 3, a sprayer 4 and a water control system 5, wherein the toilet bowl 1 is a common siphon type flushing toilet bowl and is positioned at the middle lower part of the squatting pan, the sprayer 4 is placed at the upper edge of a toilet bowl 2-2, and a spraying opening 4-2 is opposite to the inner edge of the toilet bowl 2-2.
2. A waterless, tankless squat toilet as claimed in claim 1, wherein: the supporting frame 2 comprises a platform frame 2-1, a toilet groove 2-2 and a hidden box 2-3; the platform frame 2-13 comprises a toilet notch 2-1-1, a small hole 3-9 and a spring column sleeve 3-6; the two hidden storage boxes 2-3 are positioned at the left side and the right side of the excrement tank 2-2, and a water pressure increasing device 3 and a water control system 5 are hidden in the hidden storage boxes; the lower half part of the excrement groove 2-2 is provided with an excrement bucket 1.
3. A waterless, tankless squat toilet as claimed in claim 1, wherein: the water pressure increasing device 3 comprises a piston device 3-1, a lever 3-2, a pedal key 3-3, a lever supporting point 3-4, a spring 3-5, a spring column sleeve 3-6, a water pressure cylinder 3-7 and a limiting supporting rod 3-8; the piston device 3-1 comprises hydraulic pistons 3-1-1, spring columns 3-1-2, n-shaped piston connecting rods 3-1-3 and cylindrical buckles 3-1-4, wherein two hydraulic pistons 3-1-1 are arranged in each piston device 3-1, two adjacent hydraulic pistons 3-1-1 are connected and fixed through the n-shaped piston connecting rods 3-1-3, and the cylindrical buckles 3-1-4 are arranged in the middles of the cross rods of the n-shaped piston connecting rods 3-1-3; two spring columns 3-1-2 are arranged on each hydraulic piston 3-1-1, each spring column 3-1-2 is sleeved with a spring and sleeved in a spring column sleeve 3-6 on the platform frame 2-1, and each hydraulic piston 3-1-1 can only move up and down; the cylinder in the middle of the hydraulic piston 3-1-1 is made of stainless steel, the periphery of the cylinder is provided with a silica gel sleeve, and the cylinder is tightly contacted with the hydraulic cylinder 3-7 without water leakage; the lever 3-2 comprises a lever rotating support hole 3-4-1, a sliding groove 3-2-1 and a sliding groove 3-2-2, a cylindrical buckle 3-1-4 is embedded into the sliding groove 3-2-1, a pedal key 3-3 chain rod passes through a small hole 3-9 in the platform frame 2-13, and the cylindrical buckle 3-3-1 at the lower end is embedded into the sliding groove 3-2-2. When a foot is stepped on the foot key 3-3, the lever 3-2 rotates around a lever supporting point 3-4, the two hydraulic pistons 3-1-1 are lifted upwards along with the rotation, and the spring 3-5 is compressed to form downward elastic force.
4. A waterless, tankless squat toilet as claimed in claim 1, wherein: the water control system 5 is divided into a left set of facilities and a right set of facilities, wherein the left set of facilities comprises a water inlet pipe 5-1, a water level automatic control valve 5-2, a low-pressure water one-way valve 5-3, a low-pressure water flow through valve 5-4, a water storage tank 5-5, a pressure increasing tank 5-6, a high-pressure water flow through valve 5-7, a high-pressure one-way valve 5-8, a low-pressure water flow through pipe 5-9 and a high-pressure water flow outlet 5-10; the water inlet pipe 5-1 is connected with an external water inlet pipe, the water level automatic control valve 5-2 controls the water inlet of the water inlet pipe 5-1, and the water inlet is automatically closed when external low-pressure water slowly flows into the water storage tank 5-5 to reach a certain height; the water storage tank 5-5 is an open water tank, the low-pressure water flow through valve 5-4 enlarges the water storage volume, the pressurizing tank 5-6 is sealed, and the water storage tank 5-5 is communicated with the pressurizing tank 5-6 only through the low-pressure water one-way valve 5-3; the low-pressure water one-way valve 5-3 limits the water to flow from the water storage tank 5-5 to the pressurizing tank 5-6 in one way; high-pressure water of the pressurizing box 5-6 is flushed into the sprayer 4 from the high-pressure water through valve 5-7 through the high-pressure one-way valve 5-8 and the high-pressure water outlet 5-10; the left set of facilities is completely the same and symmetrically arranged except that a water inlet pipe 5-1 and a water level automatic control valve 5-2 are not arranged, and the bottoms of the left water storage tank 5-5 and the right water storage tank are communicated by a low-pressure water through pipe 5-9.
CN201910475071.XA 2019-05-23 2019-05-23 Water-pressure-free water-tank-free squatting pan Active CN111980128B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023203370A1 (en) * 2022-04-19 2023-10-26 Sayee Sundar Kasiraman A toilet sanitary-ware system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070050902A1 (en) * 2005-08-16 2007-03-08 Fu-Chang Liao Flushing controlling mechanism
CN201202166Y (en) * 2008-06-16 2009-03-04 陈驰佳 Novel flushing type squat closet
CN102454216A (en) * 2010-10-25 2012-05-16 母凌燕 Water-saving squatting pan
CN102817409A (en) * 2012-07-20 2012-12-12 王永强 Water-saving, non-blocking, clean and sanitary automatic toilet
CN107268750A (en) * 2016-04-06 2017-10-20 虞荣仁 A kind of squatting pan
CN107313495A (en) * 2017-06-29 2017-11-03 上海电力学院 A kind of integral energy-saving water saving pit
CN109306729A (en) * 2018-09-28 2019-02-05 湖南工业大学 A kind of electric-controlled type pressurized water-saving flusher

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070050902A1 (en) * 2005-08-16 2007-03-08 Fu-Chang Liao Flushing controlling mechanism
CN201202166Y (en) * 2008-06-16 2009-03-04 陈驰佳 Novel flushing type squat closet
CN102454216A (en) * 2010-10-25 2012-05-16 母凌燕 Water-saving squatting pan
CN102817409A (en) * 2012-07-20 2012-12-12 王永强 Water-saving, non-blocking, clean and sanitary automatic toilet
CN107268750A (en) * 2016-04-06 2017-10-20 虞荣仁 A kind of squatting pan
CN107313495A (en) * 2017-06-29 2017-11-03 上海电力学院 A kind of integral energy-saving water saving pit
CN109306729A (en) * 2018-09-28 2019-02-05 湖南工业大学 A kind of electric-controlled type pressurized water-saving flusher

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023203370A1 (en) * 2022-04-19 2023-10-26 Sayee Sundar Kasiraman A toilet sanitary-ware system

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