CN113404131A

CN113404131A - Intelligent closestool and control method

Info

Publication number: CN113404131A
Application number: CN202110566751.XA
Authority: CN
Inventors: 闫超; 戴日华; 黄振文
Original assignee: Xinle Bathroom Products Foshan Co ltd
Current assignee: Xinle Bathroom Products Foshan Co ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2021-09-17
Anticipated expiration: 2041-05-24
Also published as: CN113404131B

Abstract

The invention relates to the field of intelligent toilets, in particular to an intelligent toilet and a control method, wherein the intelligent toilet comprises: the closestool comprises a closestool body and a water tank body arranged on the rear upper part of the closestool body; the bottom of the water tank body is provided with two water outlets, and a first drain valve and a second drain valve are respectively arranged in the two water outlets; the output end of the first drain valve is communicated with the annular flushing water channel; and a surrounding flow passage is arranged on the periphery of the sewage discharge port of the toilet cavity and is communicated with the output end of the second drain valve, and the bottom of the surrounding flow passage is communicated with the jet orifice. The intelligent closestool structurally adopts double flushing paths, and under the control of the two drainage valves, the two flushing paths can be independent and can be combined with each other to complete diversified flushing cleaning operation, so that the effect of saving water resources is achieved.

Description

Intelligent closestool and control method

Technical Field

The invention relates to the field of intelligent toilets, in particular to an intelligent toilet and a control method.

Background

The closestool is the cleaners and polishes product that uses often in the life, in traditional closestool design, stores the water that washes the closestool with a water tank, if the chinese utility model patent that the publication number is CN201296965Y, discloses a toilet bowl and closestool, and it is equipped with a water tank storage closestool water, and the water that washes this water tank in the operation at every turn adopts same water route to supply water simultaneously to wash to closestool internal face and closestool bottom, and such design makes the closestool reuse water volume too high, wastes water resource.

However, the closestool is in the use, because the user uses the variety, be difficult to realize clean, in order to guarantee clean effect, current closestool can be according to the difficulty repeatedly water washing closestool chamber again, although the cleanness of closestool can be realized to a large amount of water washing nature, make the closestool further increase in the water resource that daily use consumed in, just because this reason closestool is difficult to obtain wide application in some water resource deficient areas, consequently under the prerequisite of guaranteeing closestool sanitary use, it is the technological problem of each bathroom manufacture factory's reluctant solution to improve the water conservation performance of closestool.

Disclosure of Invention

In view of the above-mentioned drawbacks, an object of the present invention is to provide an intelligent toilet, which uses two opposite water supply paths to flush different positions in a toilet cavity in an independent or combined manner, so as to ensure the sanitation of the toilet and improve the water saving performance of the toilet.

The invention also aims to provide a control method of the intelligent closestool.

In order to achieve the purpose, the invention adopts the following technical scheme:

an intelligent toilet, comprising: the closestool comprises a closestool body and a water tank body arranged on the rear upper part of the closestool body; the toilet bowl comprises a toilet bowl body and is characterized in that the toilet bowl body is provided with a toilet bowl cavity, the inner wall of the toilet bowl cavity is funnel-shaped, an annular flushing water channel is arranged on the periphery of the top of the toilet bowl cavity, the bottom of the toilet bowl cavity is provided with a sewage discharge outlet, the sewage discharge outlet is communicated with a sewage discharge pipeline, the bottom of the water tank body is provided with two water discharge outlets, and a first drain valve and a second drain valve are respectively arranged in the two water discharge outlets; the output end of the first drain valve is communicated with the annular flushing water channel; a surrounding flow passage is arranged on the periphery of a sewage discharge outlet of the toilet cavity, a jet orifice is arranged on one side of the sewage discharge outlet, and the jet orifice is arranged opposite to a sewage discharge pipe connected with the other side of the sewage discharge outlet; the top of the surrounding flow passage is communicated with the output end of the second drain valve, and the bottom of the surrounding flow passage is communicated with the jet orifice.

Preferably, a first buffer cavity is arranged between the output end of the first drain valve and the annular flushing water channel; the first buffer cavity is obliquely arranged, the high end of the first buffer cavity is a water inlet and is communicated with a first water outlet at the bottom of the water storage cavity of the water tank body, and the low end of the first buffer cavity is provided with a water baffle; two sides of the water baffle are respectively provided with a horizontal drainage hole, and the aperture sizes of the two horizontal drainage holes are not equal; a vertical drain hole penetrates through the lower edge of the water baffle; the horizontal drain holes are respectively communicated with two end parts of the rear side of the annular flushing water channel; the water outlet direction of the vertical water outlet hole is parallel to and attached to the inner wall of the rear side of the toilet cavity.

Preferably, the annular flushing water channel is an annular groove structure which is concavely arranged on the inner wall of the top of the toilet cavity, and annular water retaining edges are arranged at the top and the bottom of the annular flushing water channel.

Preferably, the depth of the annular flushing water channel recessed towards the inner wall of the toilet cavity is a recessed depth, and the distance between the annular water retaining edges at the top and the bottom of the annular flushing water channel is a recessed height; the depth and height of the recess of the annular flushing water channel are gradually reduced from the rear side to the front side of the annular flushing water channel.

Preferably, a second buffer cavity is arranged between the output end of the second drain valve and the surrounding flow channel; a water outlet is vertically arranged at the bottom of the second buffer cavity downwards, and a water inlet is arranged at the top of the second buffer cavity; the water inlet of the second buffer cavity is communicated with a second water outlet at the bottom of the water storage cavity of the water tank body, and the water outlet of the second buffer cavity is communicated with the top of the surrounding flow channel.

Preferably, the cavity surrounding the flow channel is in a circular tube shape, the top of the cavity is in an elliptical ring shape with the back higher and the front lower obliquely arranged, and the bottom of the cavity is in an elliptical ring shape with the bottom horizontally arranged; the horizontal width of the surrounding flow channel is gradually reduced from top to bottom, and the jet orifice is communicated with the bottom of the surrounding flow channel; and the water outlet of the second buffer cavity is communicated with the top of the rear side of the surrounding flow passage.

Preferably, a gasket, a controller and a visual detector are arranged at the top of the toilet cavity of the toilet body; the visual detector is used for detecting the flushing condition of the toilet cavity; when the gasket is attached to the top surface of the toilet cavity, a ventilation gap is formed between the front side and/or the left side and the right side of the gasket and the top surface of the toilet cavity; the first buffer cavity is provided with an air outlet which is communicated with an external air extraction and purification device and is used for extracting and purifying air in the toilet cavity; the vision detector and the exhaust port are provided with first electromagnetic valves; the first electromagnetic valve, the first drain valve and the air exhaust purification device are electrically connected with the controller.

Preferably, the sewage discharge pipeline of the closestool body is provided with a trap; the first buffer cavity is provided with an air pumping port which is communicated with an external air pump device and used for pumping the liquid part in the trap to the surrounding cavity for temporary storage; the air pumping port is provided with a second electromagnetic valve; and the second electromagnetic valve, the second drain valve and the air pump device are electrically connected with the controller.

The control method for applying the intelligent closestool comprises the following steps: a. when the controller detects that the toilet is used up by a user, the controller sends an opening instruction to the first drain valve, so that water stored in the water tank body passes through the first buffer cavity and washes the side wall of the toilet cavity along the annular washing water channel; b. after detecting that the side wall of the toilet cavity is flushed, the visual detector sends detection information to the controller, the controller closes the first drain valve and sends an opening instruction to the second drain valve, so that water stored in the water tank body passes through the second buffer cavity and is sprayed out of the spray opening; c. when the vision detector detects that the drainage in the closestool cavity is finished, the vision detector sends detection information to the controller, and the controller closes the second drain valve.

Preferably, a deodorization step is further provided before the step a: in the initial state, the first drain valve and the second drain valve are both in a closed state; when the controller detects that the closestool is about to be used, the controller controls the first drain valve and the second drain valve to be kept closed, and the first electromagnetic valve and the air exhaust and purification device are opened, so that gas in the closestool cavity is exhausted and purified through the first buffer cavity; when the controller detects that the toilet is used up by a user, the controller controls the first electromagnetic valve and the air exhaust purification device to be closed;

an anti-splash step is also arranged before the step a: in the initial state, the first drain valve and the second drain valve are both in a closed state; when the controller detects that the closestool is about to be used, the controller controls the first drain valve and the second drain valve to be kept closed, and the second electromagnetic valve and the air pump device are opened, so that liquid discharged from the sewage discharge port is sucked into the surrounding flow channel for temporary storage under the action of negative pressure generated by the air pump device; when the controller detects that the user uses up the closestool, the controller controls the second electromagnetic valve and the air pump device to be closed.

The embodiment of the invention has the following beneficial effects: .

The intelligent closestool structurally adopts double flushing paths, under the control of two drainage valves, the two flushing paths can be independent and can be combined with each other to complete diversified flushing cleaning operation, the effect of saving water resources is achieved, in addition, the intelligent closestool structurally further optimizes and expands the application of the double flushing paths, and by combining the control method, the functions of splash prevention and deodorization can be achieved, and the comfort of a user using the intelligent closestool is greatly improved.

Drawings

FIG. 1 is a schematic perspective view of an intelligent toilet according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of another perspective of the intelligent toilet of the embodiment of FIG. 1;

FIG. 3 is a schematic diagram of a side view of the intelligent toilet of the embodiment of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the intelligent toilet of the embodiment of FIG. 3 taken along plane A-A;

FIG. 5 is a schematic cross-sectional view of the intelligent toilet of the embodiment of FIG. 3 taken along plane B-B;

FIG. 6 is a schematic cross-sectional view of the intelligent toilet of the embodiment of FIG. 1 taken along the plane C-C of FIG. 4;

fig. 7 is a flowchart illustrating a control method of the intelligent toilet according to an embodiment of the present invention.

Wherein: the toilet bowl comprises a toilet bowl body 110, an annular flushing water channel 111, a surrounding flow channel 112, a sewage discharge outlet 113, a jet orifice 114, a sewage discharge pipe 115, a gasket 116, a water tank body 120, a first buffer cavity 121, a water baffle 1201, a horizontal drainage hole 1202, a vertical drainage hole 1203 and a second buffer cavity 122.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

One embodiment of the present application, as shown in fig. 1 to 6, is an intelligent toilet, including: a toilet body 110 and a tank body 120 disposed at the rear upper side of the toilet body 110; the toilet body 110 is provided with a toilet cavity, the inner wall of the toilet cavity is funnel-shaped, the periphery of the top of the toilet cavity is provided with an annular flushing water channel 111, the bottom of the toilet cavity is provided with a sewage outlet 113, the sewage outlet 113 is communicated with a sewage outlet pipe 115, the bottom of the water tank body 120 is provided with two water outlets, and a first drain valve and a second drain valve are respectively arranged in the two water outlets; the output end of the first drain valve is communicated with the annular flushing water channel 111; a surrounding flow passage 112 is arranged on the periphery of a sewage discharge outlet 113 of the toilet cavity, a jet orifice 114 is arranged on one side of the sewage discharge outlet 113, and the jet orifice 114 is arranged opposite to a sewage discharge pipe 115 connected with the other side of the sewage discharge outlet 113; the top of the surrounding flow passage 112 communicates with the output end of the second drain valve, and the bottom of the surrounding flow passage 112 communicates with the injection port 114.

The intelligent closestool is provided with two independent flushing paths, and one flushing path supplies water to the flushing water channel and is used for flushing the side wall of the closestool cavity; the other flushing path supplies water to the jet orifice 114 of the toilet cavity for draining the toilet cavity from the drain pipe 115; in practical application, the control of two independent flushing paths can be manual control, automatic control can also be realized through detector and controller, make intelligent closestool can wash the condition according to the closestool intracavity in washing operation, two optional independent flushing paths of using are directed to the formulation region and are washed, it is concrete can let two independent flushing paths independent control water yield wash the closestool simultaneously according to the use needs, also can let two independent flushing paths separately independently wash the closestool, concrete control application mode, can be according to the nimble setting of selecting of the use scene of closestool, can wash the closestool intracavity cleanly like this, again can not necessarily wash by water at every turn wholly, the operation water of washing by water at every turn still less, and then reach the purpose of water economy resource.

Specifically, a first buffer cavity 121 is arranged between the output end of the first drain valve and the annular flushing water channel 111; the first buffer cavity 121 is obliquely arranged, the high end of the first buffer cavity is a water inlet and is communicated with a first water outlet at the bottom of the water storage cavity of the water tank body 120, and the low end of the first buffer cavity is provided with a water baffle 1201; two sides of the water baffle 1201 are respectively provided with a horizontal drainage hole 1202, and the two horizontal drainage holes 1202 have different aperture sizes; a vertical water drainage hole 1203 penetrates through the lower edge of the water baffle 1201; the horizontal drainage holes 1202 are respectively communicated with two end parts of the rear side of the annular flushing water channel 111; the water outlet direction of the vertical water discharge hole 1203 is parallel to and attached to the inner wall of the rear side of the toilet cavity.

The first buffer cavity 121 which is obliquely arranged can collect water flow in a larger space in the flushing process, and then the water flow is sprayed out to the horizontal drain hole 1202 and the vertical drain hole 1203 which are smaller in radial size in a concentrated mode under the action of water pressure and gravity, so that the flushing force can be increased, in addition, the pore sizes of the two horizontal drain holes 1202 are arranged in a large mode and in a small mode, the water flow flowing out from the rear side of the annular flushing water channel 111 can be enabled to be mutually interfered in the annular flushing water channel 111, finally, the vortex flushing effect is generated when the inner wall of the toilet cavity is flushed, and the flushing cleaning effect is further improved.

Preferably, the annular flushing water channel 111 is an annular groove structure recessed in the inner wall of the top of the toilet cavity, and the top and the bottom of the annular flushing water channel 111 are both provided with annular water retaining edges. Specifically, the depth of the annular flushing water channel 111 towards the inner wall of the toilet cavity is the concave depth, and the distance between the annular water retaining edges at the top and the bottom of the annular flushing water channel 111 is the concave height; the recess depth and the recess height of the annular flushing channel 111 are gradually reduced from the rear side to the front side of the annular flushing channel. The water flow sprayed out from the horizontal drain hole 1202 flows to the periphery of the top of the toilet cavity along the annular sunken structure flow channel and is washed and cleaned along the inside of the toilet cavity under the action of gravity; annular scour water course 111 is open mode structure, and with current pipeline trompil formula structure, both guaranteed the scouring force degree, can simplify annular scour water course 111's structure again, be convenient for intelligent closestool is clean, reduction in production cost.

Preferably, a second buffer cavity 122 is arranged between the output end of the second drain valve and the surrounding flow passage 112; a water outlet is vertically arranged at the bottom of the second buffer cavity 122 downwards, and a water inlet is arranged at the top of the second buffer cavity; the water inlet of the second buffer chamber 122 is communicated with the second water outlet at the bottom of the water storage chamber of the water tank body 120, and the water outlet thereof is communicated with the top of the surrounding flow passage 112. The second buffer chamber 122 can collect water in a larger space during flushing, and then slowly inject water around the flow passage 112 with a smaller space under the action of water pressure and gravity, and finally spray the water out of the spray opening 114, so that the flushing force can be increased, and the flushing cleaning effect can be improved.

Preferably, the cavity surrounding the flow channel 112 is in a shape of a circular tube, the top of the cavity is in an elliptical ring shape with a high back and a low front, and the bottom of the cavity is in an elliptical ring shape with a horizontal bottom; the horizontal width of the surrounding flow passage 112 is gradually reduced from top to bottom, and the jet port 114 is communicated with the bottom of the surrounding flow passage 112; the water outlet of the second buffer cavity 122 is communicated with the top of the rear side of the surrounding flow passage 112; further optimizing the structural shape of the surrounding flow passage 112 can further increase the injection pressure of the water column from the injection port 114, and can produce a better siphon effect at the sewage drain 113.

Preferably, a gasket 116, a controller and a visual detector are arranged at the top of the toilet cavity of the toilet body 110; the visual detector is used for detecting the flushing condition of the toilet cavity; when the gasket 116 is attached to the top surface of the toilet bowl cavity, a ventilation gap is formed between the front side and/or the left side and the right side of the gasket 116 and the top surface of the toilet bowl cavity; the first buffer cavity 121 is provided with an air outlet, and the air outlet is communicated with an external air extraction and purification device and is used for extracting and purifying air in the toilet cavity; the exhaust port is provided with a first electromagnetic valve; the first electromagnetic valve, the first drain valve and the air exhaust purification device are electrically connected with the controller.

The air extracting and purifying device is a product which can be purchased directly in the market, can be an air purifying device formed by combining a fan and a deodorizing and filtering material, and can drive the air in the toilet cavity to be extracted from the first buffer cavity 121 and be purified and deodorized; in practical application, air in the toilet cavity is pumped out for deodorization, and air on the front side of the toilet enters the toilet cavity from the ventilation gap for filling, so that air circulation deodorization in the toilet cavity is realized. The visual detector is a monitor product with image capture and recognition that can be purchased directly by the market.

Preferably, a trap is arranged in the drainage pipe 115 of the toilet body 110; an air suction port is formed in the first buffer cavity 121, and the air suction port is communicated with an external air pump device and used for sucking a liquid part in the trap to the surrounding cavity for temporary storage; the air pumping port is provided with a second electromagnetic valve; and the second electromagnetic valve, the second drain valve and the air pump device are electrically connected with the controller.

The air pump device is a product which can be directly purchased in the market, and can pump out the air in the second buffer cavity 122 and the surrounding runner 112 to generate negative pressure; in practical application, air in the surrounding flow channel 112 is pumped out to generate negative pressure, and liquid with high liquid level reserved in the trap at the toilet cavity drain outlet 113 partially enters the annular flow channel, so that the liquid in the toilet cavity is reduced, the liquid level surface is reduced, and a user can use the intelligent toilet under the condition, so that the liquid reserved in the toilet cavity can be prevented from splashing, and the intelligent toilet is more sanitary and convenient to use; when the user uses play intelligent closestool back can carry out the bath operation, the negative pressure in the annular flow channel is relieved, and the liquid of inside temporary storage is taken out along with the bath operation.

As shown in fig. 7, the control method of the intelligent toilet as described above is applied, and includes the following steps:

a. when the controller detects that the user uses the toilet, an opening instruction is sent to the first drain valve, so that the water stored in the water tank body 120 passes through the first buffer cavity 121 and then washes the side wall of the toilet cavity along the annular flushing water channel 111.

b. After detecting that the side wall of the toilet cavity is flushed, the visual detector sends detection information to the controller, and the controller closes the first drain valve and sends an opening instruction to the second drain valve, so that water stored in the water tank body 120 passes through the second buffer cavity 122 and is sprayed out of the spray opening 114.

c. When the vision detector detects that the drainage in the closestool cavity is finished, the vision detector sends detection information to the controller, and the controller closes the second drain valve.

Preferably, a deodorization step is further provided before the step a: in the initial state, the first drain valve and the second drain valve are both in a closed state; when the controller detects that the toilet is about to be used, the controller controls the first drain valve and the second drain valve to be kept closed, and the first solenoid valve and the air exhaust and purification device are opened, so that gas in the toilet cavity is exhausted and purified through the first buffer cavity 121; when the controller detects that the user uses up the closestool, the controller controls the first electromagnetic valve and the air exhaust and purification device to be closed.

An anti-splash step is also arranged before the step a: in the initial state, the first drain valve and the second drain valve are both in a closed state; when the controller detects that the closestool is about to be used, the controller controls the first drain valve and the second drain valve to be kept closed, and the second electromagnetic valve and the air pump device are opened, so that liquid discharged from the sewage discharge port 113 is sucked into the surrounding flow channel 112 for temporary storage under the action of negative pressure generated by the air pump device; when the controller detects that the user uses up the closestool, the controller controls the second electromagnetic valve and the air pump device to be closed.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims

1. An intelligent toilet, comprising: the closestool comprises a closestool body and a water tank body arranged on the rear upper part of the closestool body; the closestool is characterized in that the closestool body is provided with a closestool cavity, the inner wall of the closestool cavity is funnel-shaped, the periphery of the top of the closestool cavity is provided with an annular scouring water channel, the bottom of the closestool cavity is provided with a sewage discharge port, and the sewage discharge port is communicated with a sewage discharge pipeline,

the bottom of the water tank body is provided with two water outlets, and a first drain valve and a second drain valve are respectively arranged in the two water outlets;

the output end of the first drain valve is communicated with the annular flushing water channel;

a surrounding flow passage is arranged on the periphery of a sewage discharge outlet of the toilet cavity, a jet orifice is arranged on one side of the sewage discharge outlet, and the jet orifice is arranged opposite to a sewage discharge pipe connected with the other side of the sewage discharge outlet; the top of the surrounding flow passage is communicated with the output end of the second drain valve, and the bottom of the surrounding flow passage is communicated with the jet orifice.

2. The intelligent closestool of claim 1, wherein a first buffer chamber is arranged between the output end of the first drainage valve and the annular flushing water channel; the first buffer cavity is obliquely arranged, the high end of the first buffer cavity is a water inlet and is communicated with a first water outlet at the bottom of the water storage cavity of the water tank body, and the low end of the first buffer cavity is provided with a water baffle; two sides of the water baffle are respectively provided with a horizontal drainage hole, and the aperture sizes of the two horizontal drainage holes are not equal; a vertical drain hole penetrates through the lower edge of the water baffle; the horizontal drain holes are respectively communicated with two end parts of the rear side of the annular flushing water channel; the water outlet direction of the vertical water outlet hole is parallel to and attached to the inner wall of the rear side of the toilet cavity.

3. The intelligent toilet according to claim 2, wherein the annular flushing water channel is an annular groove structure recessed in the top inner wall of the toilet cavity, and the top and the bottom of the annular flushing water channel are provided with annular water retaining edges.

4. The intelligent closestool of claim 3, wherein the annular flushing water channel is recessed towards the inner wall of the closestool cavity by a recess depth, and the distance between the annular water retaining edges at the top and the bottom of the annular flushing water channel is a recess height; the depth and height of the recess of the annular flushing water channel are gradually reduced from the rear side to the front side of the annular flushing water channel.

5. The intelligent closestool of claim 4, wherein a second buffer chamber is arranged between the output end of the second drain valve and the surrounding flow passage; a water outlet is vertically arranged at the bottom of the second buffer cavity downwards, and a water inlet is arranged at the top of the second buffer cavity; the water inlet of the second buffer cavity is communicated with a second water outlet at the bottom of the water storage cavity of the water tank body, and the water outlet of the second buffer cavity is communicated with the top of the surrounding flow channel.

6. The intelligent closestool of claim 5, wherein the cavity surrounding the flow channel is in a shape of a circular tube, the top of the cavity is in an elliptical ring shape with the back higher and the front lower obliquely, and the bottom of the cavity is in an elliptical ring shape with the bottom horizontally; the horizontal width of the surrounding flow channel is gradually reduced from top to bottom, and the jet orifice is communicated with the bottom of the surrounding flow channel; and the water outlet of the second buffer cavity is communicated with the top of the rear side of the surrounding flow passage.

7. The intelligent closestool of claim 6, wherein the top of the closestool cavity of the closestool body is provided with a gasket, a controller and a visual detector; the visual detector is used for detecting the flushing condition of the toilet cavity; when the gasket is attached to the top surface of the toilet cavity, a ventilation gap is formed between the front side and/or the left side and the right side of the gasket and the top surface of the toilet cavity; the first buffer cavity is provided with an air outlet which is communicated with an external air extraction and purification device and is used for extracting and purifying air in the toilet cavity; the exhaust port is provided with a first electromagnetic valve; the vision detector, the first electromagnetic valve, the first drain valve and the air exhaust purification device are electrically connected with the controller.

8. The intelligent closestool of claim 7, wherein the sewage pipeline of the closestool body is provided with a trap; the first buffer cavity is provided with an air pumping port which is communicated with an external air pump device and is used for pumping the liquid part in the trap to the surrounding cavity for temporary storage; the air pumping port is provided with a second electromagnetic valve; and the second electromagnetic valve, the second drain valve and the air pump device are electrically connected with the controller.

9. The control method for applying the intelligent toilet according to claim 8, comprising the following steps:

a. when the controller detects that the toilet is used up by a user, the controller sends an opening instruction to the first drain valve, so that water stored in the water tank body passes through the first buffer cavity and washes the side wall of the toilet cavity along the annular washing water channel;

b. after detecting that the side wall of the toilet cavity is flushed, the visual detector sends detection information to the controller, the controller closes the first drain valve and sends an opening instruction to the second drain valve, so that water stored in the water tank body passes through the second buffer cavity and is sprayed out of the spray opening;

10. The control method according to claim 9, wherein the step a is further preceded by a deodorizing step of: in the initial state, the first drain valve and the second drain valve are both in a closed state; when the controller detects that the closestool is about to be used, the controller controls the first drain valve and the second drain valve to be kept closed, and the first electromagnetic valve and the air exhaust and purification device are opened, so that gas in the closestool cavity is exhausted and purified through the first buffer cavity; when the controller detects that the toilet is used up by a user, the controller controls the first electromagnetic valve and the air exhaust purification device to be closed;