CN216238831U - Self-cleaning spray pipe, toilet lid and intelligent toilet - Google Patents

Abstract

A self-cleaning spray pipe, a toilet cover and an intelligent toilet comprise a water outlet assembly, a spray head group, a shell and a control valve; the water outlet assembly is provided with a plurality of cleaning channels and a first water inlet, the spray head group is arranged at one end of the water outlet assembly and is provided with a plurality of cleaning spray holes, and the cleaning spray holes are correspondingly communicated with the cleaning channels; the outer shell fixing cover is arranged outside the water outlet assembly and the spray head group; the water outlet assembly is also provided with a second water inlet; the spray head group is provided with at least one self-cleaning water outlet channel, and the self-cleaning water outlet channel is positioned between the outer end of the spray head group and the corresponding end of the shell and is communicated with the second water inlet; the control valve is communicated with the first water inlet and the second water inlet to control the first water inlet or the second water inlet to be communicated to realize cleaning or self-cleaning, or the first water inlet and the second water inlet are alternately communicated according to a preset frequency to realize cleaning and self-cleaning simultaneously. The utility model can avoid dirt adhesion and prevent dirt from being clamped on other structures, and the self-cleaning water outlet channel is positioned at the end part of the water outlet assembly, so that the self-cleaning effect is better.

Description

Self-cleaning spray pipe, toilet lid and intelligent toilet

Technical Field

The utility model relates to the field of bathrooms, in particular to a self-cleaning spray pipe, a toilet cover and an intelligent toilet.

Background

Along with the improvement of living standard of people and the continuous progress of society, the functions of the closestool are more abundant, the cleaning function is one of the common functions of the existing closestool, and the hip washing function, the woman washing function and the like can be realized. At present, cleaning function is realized through flexible spray tube structure, including fixing base, spray tube and switching module, and spray tube slidable ground sets up on the fixing base and is equipped with a plurality of washing passageways, and switching module and spray tube sliding connection are equipped with the water inlet, and through drive switching module slip switch-on water inlet and one of them washing passageway realization buttockss wash or woman wash etc..

However, the telescopic spray pipe is easy to stick dirt in the using process, and is easy to go moldy and breed bacteria after a long time; therefore, a self-cleaning structure is provided, and usually, a cleaning hole is arranged on the fixed seat, and the spray pipe is subjected to water outlet cleaning before extending or after retracting. In this way, the following disadvantages exist:

1. when the spray pipe is driven to extend out for cleaning and water discharging, the spray pipe cannot be automatically cleaned;

2. when the spray pipe retracts to the fixed seat, if large dirt is encountered, the dirt can be brought to the fixed seat, and larger-area pollution is caused;

3. when the spray pipe retracts to the fixed seat, dirt can be clamped between the spray pipe and the positioning structure of the fixed seat, and the spray pipe cannot be cleaned.

4. The spout is typically cleaned by draining water at a location rearward of the spout, without the spout being self-cleaning, i.e., without cleaning starting from the spray head location.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to overcome the defects of a self-cleaning structure in the prior art, and provides a self-cleaning spray pipe, a toilet cover and an intelligent toilet, which can realize self-cleaning and avoid dirt adhesion during cleaning.

The utility model adopts the following technical scheme:

a self-cleaning spray pipe comprises a water outlet assembly, a spray head group, a shell and a control valve; the water outlet assembly is provided with a plurality of cleaning channels and a first water inlet, the spray head group is arranged at one end of the water outlet assembly and is provided with a plurality of cleaning spray holes, and the cleaning spray holes are correspondingly communicated with the cleaning channels; the outer shell fixing cover is arranged outside the water outlet assembly and the spray head group; the method is characterized in that: the water outlet assembly is also provided with a second water inlet; the spray head group is provided with at least one self-cleaning water outlet channel which is positioned between the outer end of the spray head group and the corresponding end of the shell and is communicated with the second water inlet; the control valve is communicated with the first water inlet and the second water inlet to control the first water inlet or the second water inlet to be communicated to realize cleaning or self-cleaning, or alternatively communicated with the first water inlet and the second water inlet according to a preset frequency to realize cleaning and self-cleaning simultaneously.

Preferably, the nozzle group comprises a nozzle and an end cover, the nozzle is fixed at one end of the water outlet assembly and is provided with the cleaning spray hole and at least one communication channel; the end cover is fixed at one end of the spray head and is provided with at least one self-cleaning water outlet channel, and the self-cleaning water outlet channel is correspondingly communicated with the communication channel.

Preferably, the self-cleaning water outlet channel comprises a communication hole and a water outlet groove, one end of the communication hole is communicated with the communication channel, the other end of the communication hole is communicated with the water outlet groove, and the water outlet groove is positioned on one side of the end cover opposite to the shell.

Preferably, the water outlet groove comprises at least one first groove and at least one second groove, the first groove extends along the circumferential direction of the end cover, and the second groove is communicated with the first groove and the communication hole.

Preferably, the nozzle group comprises a nozzle and an end cover, the nozzle is fixed at one end of the water outlet assembly and is provided with the cleaning spray hole and at least one communication channel; the end cover is rotationally fixed at one end of the spray head, one side of the end cover, which is opposite to the shell, is provided with a plurality of blades, a self-cleaning water outlet channel is formed between every two adjacent blades, and the self-cleaning water outlet channel is communicated with the communicating channel.

Preferably, the plurality of blades extend along the radial direction of the end cover in an inclined way and are distributed circumferentially.

Preferably, the water outlet assembly comprises a base, a water outlet body, a switching piece and a driving piece, the water outlet body is fixed on the base and forms the plurality of cleaning channels and the second water inlet with the base, and the switching piece is slidably arranged on the water outlet body and is provided with the first water inlet; the driving piece is connected with the driving switching piece and slides relative to the water outlet body so that the first water inlet is communicated with one of the cleaning channels.

Preferably, at least one self-cleaning channel is formed between the water outlet body and the base, and the self-cleaning channel is positioned on the side part of the plurality of cleaning channels; the self-cleaning water outlet channels are communicated with the self-cleaning channels in a one-to-one correspondence mode.

The utility model provides a toilet lid, includes the lid, its characterized in that: the self-cleaning spray pipe is characterized by further comprising a fixed seat, a telescopic driving piece and the self-cleaning spray pipe, wherein the water outlet assembly is slidably arranged on the fixed seat, and the telescopic driving piece is connected with and drives the water outlet assembly to slide relative to the fixed seat so as to stretch.

The utility model provides an intelligent closestool, includes the closestool body, its characterized in that: the closestool body is provided with the closestool cover.

As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:

1. according to the utility model, the second water inlet is arranged on the water outlet assembly, the spray head group is provided with at least one self-cleaning water outlet channel, the first water inlet or the second water inlet is communicated through the control of the control valve to realize cleaning or self-cleaning, or the first water inlet and the second water inlet are alternately communicated according to a preset frequency to realize cleaning and self-cleaning simultaneously, dirt is prevented from being attached, the dirt is prevented from being clamped on other structures when the water outlet assembly moves, and the self-cleaning water outlet channel is positioned at the end part of the water outlet assembly, so that the self-cleaning effect is better.

2. According to the utility model, the spray head group comprises a spray head and an end cover, the end cover is fixed at one end of the spray head and is provided with a self-cleaning water outlet channel, and the end cover can be rotatably connected with the spray head and is provided with blades, so that the self-cleaning water outlet channel can rotate to discharge water under the impact of water flow, and the shell can be cleaned in all directions at 360 degrees.

3. According to the utility model, the self-cleaning water outlet channel comprises a water outlet groove which comprises a first groove and a second groove, wherein the first groove extends along the circumferential direction of the end cover, and the second groove is communicated with the first groove and the communicating hole, so that water flows through the first groove and flows outwards, and is diffused to the periphery of the shell along the circumferential direction through the second groove.

4. In the utility model, two self-cleaning channels can be arranged and respectively positioned at two sides of the plurality of cleaning channels, so that the appearance of the whole water outlet assembly is not influenced.

5. According to the utility model, the control valve is adopted to control the switching of the water paths to realize simultaneous cleaning and self-cleaning, and the switching frequency of the control valve is adjusted to generate a low-frequency pulse cleaning effect during self-cleaning, so that stepless adjustment can be realized, and a user can select the most comfortable pulse cleaning embodiment; in addition, when using and lasting self-cleaning function, wash out water and close and open the automatically cleaning in the twinkling of an eye, the automatically cleaning is closed and is opened the washing in the twinkling of an eye, and the water route lasts out water promptly, and the temperature is stable, solves the tradition temperature that adopts the pulse valve switch water route to realize that pulse goes out water and lead to unstable, realizes better washing experience.

Drawings

FIG. 1 is a block diagram of the present invention (embodiment one);

FIG. 2 is an internal structural view of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a view of the structure of the effluent body;

FIG. 5 is a view showing a structure of a main body of the head;

FIG. 6 is a view of the end cap configuration;

FIG. 7 is a front view of the present invention;

FIG. 8 is a cross-sectional view A-A of FIG. 7;

FIG. 9 is an enlarged view of a portion of FIG. 8;

FIG. 10 is a structural view of the present invention (embodiment two);

FIG. 11 is an exploded view of the showerhead;

FIG. 12 is a view of the end cap configuration;

FIG. 13 is a front view of the second embodiment;

FIG. 14 is a cross-sectional view A-A of FIG. 13;

wherein:

10. the water outlet assembly comprises a water outlet assembly, 11, a cleaning channel, 11a, a first cleaning groove, 11b, a second cleaning groove, 12, a first water inlet, 13, a second water inlet, 14, a base, 14a, a second rack, 15, a water outlet body, 16, a switching piece, 16a, a first rack, 17, a driving piece, 18, a self-cleaning channel, 18a, a first self-cleaning groove, 18b, a second self-cleaning groove, 20, a spray head group, 21, a spray head, 21a, a communication channel, 22, an end cover, 23, a cleaning spray hole, 24, a self-cleaning water outlet channel, 24a, a communication hole, 25, a water outlet groove, 26, a first groove, 27, a second groove, 28, a blade, 29, a rotating shaft, 29a, a bearing, 30, a shell, 40 and a control valve.

The utility model is described in further detail below with reference to the figures and specific examples.

Detailed Description

The utility model is further described below by means of specific embodiments.

The terms "first," "second," "third," and the like in this disclosure are used solely to distinguish between similar items and not necessarily to describe a particular order or sequence, nor are they to be construed as indicating or implying relative importance. In the description, the directions or positional relationships indicated by "up", "down", "left", "right", "front" and "rear" are used based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the scope of the present invention. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

Example one

Referring to fig. 1 to 9, a self-cleaning spray pipe includes a water outlet assembly 10, a spray head set 20, a housing 30, and a control valve 40. The water outlet assembly 10 is provided with a plurality of cleaning channels 11, a first water inlet 12, a second water inlet 13 and the like. Specifically, the water outlet assembly 10 includes a base 14, a water outlet body 15, a switching member 16, a driving member 17, and the like. The base 14 is located at the bottom of the outlet assembly 10. This go out water body 15 and be fixed in on base 14 and be formed with a plurality of washing passageways 11 with it, can set up a plurality of first washing recess 11a in 15 bottoms of going out water body, base 14 top corresponds and sets up a plurality of second washing recess 11b, first washing recess 11a and the second washing recess 11b that corresponds constitute washing passageway 11, these a plurality of washing passageways 11 do not communicate each other, the quantity of washing passageway 11 is at least one, it can be corresponding with cleaning function quantity, for example, can wash including buttockss, women washes, powerful washing etc..

Furthermore, a second water inlet 13 is arranged on the water outlet body 15, and a self-cleaning channel 18 is formed between the water outlet body 15 and the base 14. The self-cleaning channel 18 communicates with the second water inlet 13. Wherein, at least one first self-cleaning groove 18a can be arranged at the bottom of the water outlet body 15, at least one second self-cleaning groove 18b is correspondingly arranged at the top of the base 14, the first self-cleaning groove 18a and the corresponding second self-cleaning groove 18b form a self-cleaning channel 18, and the self-cleaning channel 18 is not communicated with the cleaning channel 11. The number of the self-cleaning channels 18 may be at least one, and preferably two, and two self-cleaning channels 18 may be located at both sides of the plurality of cleaning channels 11 without affecting the layout of the cleaning channels 11 and the overall appearance of the water outlet assembly 10.

The switch 16 is slidably disposed on the water outlet body 15 and is provided with a first water inlet 12. In order to ensure that the switching member 16 slides more reliably, a sliding block may be disposed on the water outlet body 15, and the switching member 16 may be correspondingly provided with a sliding groove, which may slide with the sliding block. The driving member 17 is connected to drive the switching member 16 to slide relative to the water outlet body 15, so that the first water inlet 12 is communicated with one of the cleaning channels 11. Wherein, driving piece 17 can adopt first motor, and its output sets up the gear, and this switching piece 16 corresponds and is equipped with first rack 16a, and the gear meshes with first rack 16a, thereby drives the gear rotation through first motor and orders about switching piece 16 and slide 15 relative play water, realizes cleaning function's switching.

The nozzle group 20 is installed at one end of the water outlet assembly 10 and is provided with a plurality of cleaning spray holes 23 and at least one self-cleaning water outlet channel 24, the plurality of cleaning spray holes 23 are correspondingly communicated with the plurality of cleaning channels 11, and the self-cleaning water outlet channel 24 is located between the outer end of the nozzle 21 and the corresponding end of the outer shell 30 and is communicated with the second water inlet 13. The cleaning nozzle holes 23 may be of a type corresponding to the number of cleaning functions, and may include hip cleaning holes, bidet cleaning holes, powerful cleaning holes, and the like. The number of the self-cleaning water outlet channels 24 can correspond to the number of the self-cleaning channels 18, and is preferably two.

Further, the nozzle set 20 includes a nozzle 21 and an end cap 22, the nozzle 21 is fixed to one end of the water outlet assembly 10 and is provided with a cleaning nozzle 23 and at least one communication channel 21 a. That is, the nozzle 21 is fixed at one end of the water outlet body 15, the water inlet end of the cleaning spray hole 23 is connected with the water outlet end of the corresponding cleaning channel 11 in an inserting manner, and the water outlet end of the cleaning spray hole 23 can be located at the side part of the water outlet body 15. The communication passages 21a are used to communicate with the self-cleaning passages 18, and the number of the communication passages 21a corresponds to the number of the self-cleaning passages 18, and is preferably two.

The end cover 22 is fixed at one end of the spray head 21 and is provided with at least one self-cleaning water outlet channel 24, and the self-cleaning water outlet channel 24 is correspondingly communicated with the communication channel 21 a. In this embodiment, the end cap 22 is fixed to the nozzle 21, the water inlet end of the self-cleaning water outlet channel 24 is connected to the water outlet end of the communicating channel 21a in an inserting manner, and the water outlet end of the self-cleaning water outlet channel 24 is located between the end cap 22 and the outer end of the housing 30, and may be on the same side as the cleaning nozzle 23. The number of the self-cleaning water outlet passages 24 may correspond to the number of the communication passages 21a, and is preferably two.

Further, the self-cleaning water outlet channel 24 comprises a communication hole 24a and a water outlet groove 25, one end of the communication hole 24a is communicated with the communication channel 21a, the other end is communicated with the water outlet groove 25, the water outlet groove 25 is located on the side of the end cover 22 opposite to the housing 30, and the water outlet groove 25 is used for guiding the flow direction of the self-cleaning water flow. Specifically, the outlet channel 25 may include at least one first channel 26 and at least one second channel 27, the first channel 26 extending circumferentially along the end cap 22, and the second channel 27 communicating the first channel 26 with the communication hole 24 a. The water flowing out of the communication hole 24a flows outward through the first groove 26 and is diffused in the circumferential direction through the second groove 27. The number of the first grooves 26 may be one or two, and preferably, one first groove 26 is communicated with two second grooves 27. The number of the second grooves 27 may be the same as the number of the communication holes 24a, and for example, two second grooves 27 are included, which communicate with the two communication holes 24a, respectively.

The outer casing 30 is fixedly covered outside the water outlet assembly 10 and the nozzle group 20, is a hollow structure which is axially penetrated and can be fastened and fixed with the base 14. The housing 30 is provided with a notch for letting the plurality of cleaning nozzles 23. The end cover 22 is located at the outer end of the housing 30, and a gap is formed between the end cover 22 and the outer end of the housing 30, the water outlet end of the self-cleaning water outlet channel 24 can be located at the gap, and then the water sprayed from the self-cleaning water outlet channel 23 can flow outwards to the periphery of the housing 30 along the water outlet groove 25 to realize self-cleaning.

The control valve 40 is communicated with the first water inlet 12 and the second water inlet 13 to control the first water inlet 12 or the second water inlet 13 to be communicated for cleaning or self-cleaning. The water inlet end of the control valve 40 can be connected with a water tank or other water supply device, and the two water outlet ends are respectively connected with the first water inlet 12 and the second water inlet 13. The control valve 40 may be a common electric control valve such as a three-way solenoid valve, which is used to control the water supply to the two water inlets.

By controlling the operating state of the control valve 40, the following functions are achieved: the control valve 40 controls the first water inlet 12 to be switched on, the second water inlet 13 to be switched off, and water flow enters one of the cleaning channels 11 and is sprayed out from the cleaning spray holes 23 to realize a corresponding cleaning function. Or the control valve 40 controls the second water inlet 13 to be communicated, the first water inlet 12 to be closed, and water flows into the self-cleaning channel 18 and is sprayed out of the self-cleaning water outlet channel 24 to flow to the periphery of the shell 30 to carry out self-cleaning on the shell. Or the control valve 40 is alternately communicated with the first water inlet 12 and the second water inlet 13 according to a preset frequency, the cleaning spray hole 23 and the self-cleaning water outlet channel 24 alternately discharge water, self-cleaning and pulse cleaning can be simultaneously realized, and pulse cleaning water with different frequencies can be sprayed out from the cleaning spray hole 23 by adjusting the switching frequency of the control valve 40, so that different cleaning requirements of users can be met.

The utility model also provides a toilet cover which comprises a cover body, a fixed seat, a telescopic driving part 17 and a self-cleaning spray pipe, wherein the fixed seat is fixed on the cover body, the water outlet assembly 10 is slidably arranged on the fixed seat, and the telescopic driving part 17 is connected with and drives the water outlet assembly 10 to slide relative to the fixed seat to realize the telescopic effect. Specifically, a second rack 14a can be arranged on the water outlet assembly 10, the telescopic driving member 17 can adopt a second motor, an output shaft of the second motor is connected with a gear, and the gear and the second rack 14a drive the gear to rotate through the second motor, so that the base 14 is driven to move relative to the fixed base to realize the telescopic effect.

The toilet lid is further provided with a control module, the control module is connected with the first motor, the second motor and the control valve 40 and is used for controlling the working states of the first motor, the second motor and the control valve 40 according to commands, and therefore the cleaning function, the self-cleaning function and the like can be switched.

The utility model further provides an intelligent closestool which comprises a closestool body, wherein the closestool body is provided with the closestool cover.

The working principle of the self-cleaning spray pipe, the toilet cover and the intelligent toilet disclosed by the utility model is as follows:

in a normal state, the water outlet assembly 10 is in a retracted state, and the control valve 40 closes the first water inlet 12 and the second water inlet 13.

When a user starts any cleaning function (hip washing, woman washing or powerful washing, etc.), the control module controls the second motor to work to drive the self-cleaning spray pipe to extend outwards, after the self-cleaning spray pipe is in place, the control module controls the first motor to work, the switching piece 16 slides to enable the first water inlet 12 to be communicated with the corresponding cleaning channel 11, meanwhile, the control valve 40 is communicated with the first water inlet 12 to feed water, and then the water flows out of the cleaning spray hole 23 through the cleaning channel 11 to realize the corresponding cleaning function.

In the cleaning process, when dirt falls on the shell 30, a user can open the self-cleaning function, the control module controls the control valve 40 to alternately connect the first water inlet 12 and the second water inlet 13 according to a preset frequency, the cleaning spray holes 23 and the self-cleaning water outlet channel 24 alternately discharge water, water sprayed from the self-cleaning water outlet channel 24 flows to the periphery of the shell 30 through the guide of the water outlet groove 25 to flush away the dirt adhered to the shell 30, and meanwhile, the cleaning spray holes 23 intermittently discharge water to realize pulse cleaning.

Example two

Referring to fig. 10 to 14, a self-cleaning nozzle, a toilet lid and an intelligent toilet, which have the same main structure as the first embodiment, except that: the end cover 22 is rotatably fixed at one end of the spray head 21, that is, the end cover 22 is rotatably provided with a plurality of vanes 28 at one side opposite to the housing 30, a self-cleaning water outlet channel 24 is formed between two adjacent vanes 28, and the self-cleaning water outlet channel 24 is communicated with the communication channel 21 a.

Specifically, the end cap 22 is provided with a rotating shaft 29, the corresponding end of the nozzle 21 is provided with a shaft hole, the rotating shaft 29 is inserted into the shaft hole and rotatably connected with the shaft hole, and a bearing 29a is arranged between the rotating shaft 29 and the shaft hole.

Further, the plurality of blades 28 extend along the end cover 22 in a radial inclined manner and are circumferentially distributed, so that the self-cleaning water outlet channel 24 extends along the end cover 22 in a radial inclined manner, and the self-cleaning water outlet channel 24 is also circumferentially distributed, thereby realizing 360-degree water outlet. The number of the self-cleaning water outlet channels 24 is different from that of the communication channels 21 a.

In this embodiment, when the control valve 40 is controlled to connect the second water inlet 13, the water flow is ejected to the end cover 22 through the water outlet end of the communicating channel 21a, and may impact the blade 28 to rotate the end cover 22, and at the same time, the water flow is ejected outwards along the self-cleaning water outlet channel 23, thereby implementing 360 ° all-directional cleaning of the housing 30.

The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.

Claims (10)

1. A self-cleaning spray pipe comprises a water outlet assembly, a spray head group, a shell and a control valve; the water outlet assembly is provided with a plurality of cleaning channels and a first water inlet, the spray head group is arranged at one end of the water outlet assembly and is provided with a plurality of cleaning spray holes, and the cleaning spray holes are correspondingly communicated with the cleaning channels; the outer shell fixing cover is arranged outside the water outlet assembly and the spray head group; the method is characterized in that: the water outlet assembly is also provided with a second water inlet; the spray head group is provided with at least one self-cleaning water outlet channel which is positioned between the outer end of the spray head group and the corresponding end of the shell and is communicated with the second water inlet; the control valve is communicated with the first water inlet and the second water inlet to control the first water inlet or the second water inlet to be communicated to realize cleaning or self-cleaning of the sprayer group, or alternatively communicated with the first water inlet and the second water inlet according to a preset frequency to realize cleaning and self-cleaning of the sprayer group at the same time.

2. A self-cleaning lance defined in claim 1 wherein: the spray head group comprises a spray head and an end cover, the spray head is fixed at one end of the water outlet assembly and is provided with the cleaning spray hole and at least one communicating channel; the end cover is fixed at one end of the spray head and is provided with at least one self-cleaning water outlet channel, and the self-cleaning water outlet channel is correspondingly communicated with the communication channel.

3. A self-cleaning lance defined in claim 2 wherein: the self-cleaning water outlet channel comprises a communication hole and a water outlet groove, one end of the communication hole is communicated with the communication channel, the other end of the communication hole is communicated with the water outlet groove, and the water outlet groove is positioned on one side of the end cover, which is opposite to the shell.

4. A self-cleaning lance defined in claim 3 wherein: the water outlet groove comprises at least one first groove and at least one second groove, the first groove extends along the circumferential direction of the end cover, and the second groove is communicated with the first groove and the communication hole.

5. A self-cleaning lance defined in claim 1 wherein: the spray head group comprises a spray head and an end cover, the spray head is fixed at one end of the water outlet assembly and is provided with the cleaning spray hole and at least one communicating channel; the end cover is rotationally fixed at one end of the spray head, one side of the end cover, which is opposite to the shell, is provided with a plurality of blades, a self-cleaning water outlet channel is formed between every two adjacent blades, and the self-cleaning water outlet channel is communicated with the communicating channel.

6. A self-cleaning lance defined in claim 5 wherein: the blades extend along the radial direction of the end cover in an inclined mode and are distributed circumferentially.

7. A self-cleaning lance defined in claim 1, 2 or 5 wherein: the water outlet assembly comprises a base, a water outlet body, a switching piece and a driving piece, the water outlet body is fixed on the base and forms the plurality of cleaning channels and the second water inlets with the base, and the switching piece is slidably arranged on the water outlet body and is provided with the first water inlets; the driving piece is connected with the driving switching piece and slides relative to the water outlet body so that the first water inlet is communicated with one of the cleaning channels.

8. A self-cleaning lance defined in claim 7 wherein: at least one self-cleaning channel is formed between the water outlet body and the base and is positioned on the side part of the plurality of cleaning channels; the self-cleaning water outlet channels are communicated with the self-cleaning channels in a one-to-one correspondence mode.

9. The utility model provides a toilet lid, includes the lid, its characterized in that: the self-cleaning spray pipe further comprises a fixed seat, a telescopic driving piece and the self-cleaning spray pipe as claimed in any one of claims 1 to 8, wherein the water outlet assembly is slidably arranged on the fixed seat, and the telescopic driving piece is connected with and drives the water outlet assembly to slide relative to the fixed seat to realize the telescopic effect.

10. The utility model provides an intelligent closestool, includes the closestool body, its characterized in that: the toilet body is provided with a toilet lid according to claim 9.

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