Closestool with classification, collection and treatment functions

Patent metadata

Field	Value
Publication number	US-12440074-B2
Application number	US-202418414364-A
Country	US
Kind code	B2
Filing date	Jan 16, 2024
Priority date	Nov 22, 2023
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

A closestool with classification, collection and treatment functions includes a closestool body, an anal flushing device, a feces collection and treatment device, a heat recovery box, a urine flushing device, a closestool cover plate, a control panel and a liquid collection device. Through effectively treating feces and urine on the spot, carbonized feces and urine crystals which can realize resource utilization are generated at the same time. Compared with the traditional feces and urine treatment mode of collecting by pipe network and centralized treatment in sewage treatment plants, the treatment cost is reduced, the carbon sequestration of organic waste is realized, the carbon emission is reduced, the phosphorus resources in sewage are recovered, and the water resources are saved by reducing flushing water.

First claim

What is claimed is:

1. A closestool with classification, collection and treatment functions, comprising:
a closestool body;
an anal flushing device arranged inside the closestool body, a retractable water spray pipe being provided as the anal flushing device;
a feces collection and treatment device comprising a first storage box, a combined box and a second storage box, the first storage box being fixedly connected with a side of the combined box, and the second storage box being fixedly connected with another side of the combined box; the combined box comprising a lifting mechanism, a collection container, a feces pushing mechanism, a media pushing mechanism, a pyrolysis furnace, and a transfer box arranged above the pyrolysis furnace, the transfer box being located directly below a feces outlet of the closestool body, a top plate of the pyrolysis furnace being provided as a base plate of the transfer box, the top plate of the pyrolysis furnace and a top plate of the transfer box being both capable of opening and closing, and the lifting mechanism being configured for driving the collection container to lift and lower in the pyrolysis furnace and the transfer box; the feces pushing mechanism comprising a first electric push rod and a first push plate, the first electric push rod being fixedly connected with an inner wall of the transfer box, a passage port being arranged between the transfer box and the second storage box, and the first electric push rod being configured for driving the first push rod to be in sliding fit with an inner wall of the collection container to push feces in the collection container into the second storage box through the passage port; the first storage box being configured for storing solid heat media, a feeding port being formed in a top of the first storage box, a feeding door being arranged at a bottom of the first storage box, the feeding door being located between the first storage box and the pyrolysis furnace, and a first motor being configured for controlling opening and closing of the feeding door; the media pushing mechanism comprising a second electric push rod and a second push plate, the second electric push rod being fixedly connected with the inner wall of the transfer box, and the second electric push rod being configured for driving the second push plate to be in sliding fit with an inner wall of the pyrolysis furnace to push the solid heat media in the pyrolysis furnace into the first storage box through the feeding door;
a heat recovery box, a top end of the heat recovery box being fixedly connected with a bottom end of the pyrolysis furnace, and a base plate of the pyrolysis furnace being provided as a top plate of the heat recovery box;
a urine flushing device, the urine flushing device comprising a flushing pipe arranged at an upper side edge of an inner wall of the closestool body;
a closestool cover plate, the closestool cover plate being installed on a top of the closestool body; and
a control panel, an accommodating chamber corresponding to the control panel being formed in the closestool cover plate, the control panel being in sliding fit with the accommodating chamber, and switches for starting or stopping the lifting mechanism, the first electric push rod, the second electric push rod, the first motor, the water spray pipe and the flushing pipe and a controller being arranged in the control panel.

2. The closestool with classification, collection and treatment functions according to claim 1 , wherein an arc-shaped screen is provided as the collection container, an axis of the arc-shaped screen is horizontal and parallel to an axis of the first push plate, the arc-shaped screen is coaxial with the first push plate and has an upward concave surface, and a diameter of meshes of the arc-shaped screen is 0.5 cm-1.0 cm.

3. The closestool with classification, collection and treatment functions according to claim 1 , wherein the solid heat media include one or more of sand, kaolin, quartz sand, stone powder, yellow soil and red soil, and a particle size of the solid heat media is less than 0.5 cm.

4. The closestool with classification, collection and treatment functions according to claim 1 , wherein a heating element is arranged on an inner side wall of the base plate of the pyrolysis furnace, the base plate of the pyrolysis furnace is made of stainless steel, a removable insulation layer is further arranged below the base plate of the pyrolysis furnace, the removable insulation layer is attached to an outer side wall of the base plate of the pyrolysis furnace when installed, and the removable insulation layer is partially immersed in liquid heat media in the heat recovery box when removed; and the liquid heat media include one or more of water, ethylene glycol and heat conduction oil.

5. The closestool with classification, collection and treatment functions according to claim 1 , further comprising a liquid collection device, wherein the liquid collection device comprises a baffle plate, a urine collection pipe, a urine evaporation box, and an anal cleaning water discharge pipe;
wherein the baffle plate is arranged in the closestool body and divides a pool of the closestool body into a urine pool and a feces pool, a urine collection chamber adjacent to the urine pool and an anal cleaning water collection chamber adjacent to the feces pool are formed in the baffle plate, the urine collection chamber is in communication with a bottom of the urine pool through several first liquid inlet holes formed in the baffle plate, and the anal cleaning water collection chamber is in communication with a bottom of the feces pool through several second liquid inlet holes formed in the baffle plate;
wherein an evaporation drying agent and a dehumidifier are arranged inside the urine evaporation box, water-absorbing resin is provided as the evaporation drying agent, the dehumidifier is configured for dehumidifying gas inside the urine evaporation box, and a condensed water outlet of the dehumidifier is in communication with a municipal sewage pipe network; a liquid outlet at a bottom of the urine collection chamber is in communication with the urine evaporation box through the urine collection pipe, and a liquid outlet at a bottom of the anal cleaning water collection chamber is in communication with the municipal sewage pipe network through the anal cleaning water discharge pipe.

6. The closestool with classification, collection and treatment functions according to claim 1 , wherein circumferential outer side walls of the urine evaporation box, circumferential outer side walls of the heat recovery box, side walls of the transfer box, the top plate of the transfer box, the top plate of the pyrolysis furnace, side walls of the pyrolysis furnace, side walls of the first storage box, side walls of the second storage box, and the feeding door are all made of heat insulation boards.

7. The closestool with classification, collection and treatment functions according to claim 6 , wherein the heat insulation boards each comprise two stainless steel plates and a polyurethane foam plastic layer sandwiched between the two stainless steel plates.

8. The closestool with classification, collection and treatment functions according to claim 1 , wherein the lifting mechanism comprises a second motor and a plurality of sliding rods parallel to each other, the sliding rods are vertically arranged and fixedly connected with the inner wall of the transfer box, and the collection container is slidably sleeved on all the sliding rods; a linear motor is provided as the second motor, the second motor is fixedly connected with the inner wall of the transfer box, and an output end of the second motor is fixedly connected with the collection container.

Assignees

• Univ Wenzhou

Inventors

• Zheng Xiangyong
• Zhu Wencong
• Zhao Min
• Ma Ping
• Jiang Shunfeng
• Wang Zhiquan
• Jin Huachang
• Wu Suqing
• Jin Zhan
• Bei Ke
• Xu Bentuo
• Kong Hainan

Classifications

• E03D9/08

  Devices in the bowl producing upwardly-directed sprays; Modifications of the bowl for use with such devices (showers A47K3/28; bathing devices for special therapeutic or hygienic purposes A61H33/00, for specific parts of the body A61H35/00 ){; Bidets; Combinations of bowls with urinals or bidets; Hot-air or other devices mounted in or on the bowl, urinal or bidet for cleaning or disinfecting} · CPC title

• A47K11/02

  Dry closets, e.g. incinerator closets · CPC title

• Y02A50/30

  Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change · CPC title

• 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} · CPC title

• E03D11/02

  Water-closet bowls (auxiliary chambers with connections to flushing water for bowl-cleaning utensils E03D9/06; modified for using upwardly-directed sprays E03D9/08; seats or covers A47K13/00 ){; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl (parts or details of bowls E03D11/13)} · CPC title