CN211400008U - Cleaning mechanism and air conditioner indoor unit with same - Google Patents

Abstract

The utility model provides a machine in wiper mechanism and have its air conditioning, wiper mechanism includes: a main pipe; one end of the branch pipe is connected with the main pipe so that fluid in the main pipe flows into the branch pipe, and the branch pipe is made of flexible materials; the spray tube, the spray tube setting is provided with the spout at the other end of branch pipe on the spray tube, and the spout is the bar opening, and bar open-ended both ends extend to the inner wall and the spray tube outer wall of spray tube respectively, and the bar opening has the first central plane that sets up along its extending direction, and a central plane interval of first central plane and spray tube sets up to drive the relative person in charge rotation of spray tube under the effect of spout spun fluid. Through the technical scheme provided by the utility model, can solve the higher technical problem of wiper mechanism's of the indoor set of air conditioner among the prior art manufacturing cost.

Description

Cleaning mechanism and air conditioner indoor unit with same

Technical Field

The utility model relates to an air conditioning technology field particularly, relates to a wiper mechanism and have its air conditioning indoor set.

Background

At present, after long-time use, medium such as dust, microorganism and bacteria are generated on the surfaces of various parts in the air conditioner, so that the air conditioner is harmful to human health.

However, most of the air-conditioning indoor units in the prior art have no self-cleaning function, and although some of the air-conditioning indoor units have an evaporator self-cleaning function, the air-conditioning indoor units cannot clean the structures of parts such as a filter screen, a fan blade, an air duct and the like, and cannot achieve an efficient cleaning effect.

Meanwhile, in the prior art, the cleaning head generally needs to be driven to move through a complex driving structure so as to realize large-range cleaning of the cleaning head, so that the structural quantity and the installation complexity of the device are increased, and the production cost is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a machine in wiper mechanism and have its air conditioning to solve the higher technical problem of wiper mechanism's of the machine in the air conditioning among the prior art manufacturing cost.

In order to achieve the above object, according to an aspect of the present invention, there is provided a washing mechanism including: a main pipe; one end of the branch pipe is connected with the main pipe so that fluid in the main pipe flows into the branch pipe, and the branch pipe is made of flexible materials; the spray tube, the spray tube setting is provided with the spout at the other end of branch pipe on the spray tube, and the spout is the bar opening, and bar open-ended both ends extend to the inner wall and the spray tube outer wall of spray tube respectively, and the bar opening has the first central plane that sets up along its extending direction, and a central plane interval of first central plane and spray tube sets up to drive the relative person in charge rotation of spray tube under the effect of spout spun fluid.

Furthermore, the spray pipe is of a circular pipe structure, the nozzle is a rectangular opening, and the nozzle is located on the pipe wall of the circular pipe structure.

Furthermore, the spray pipe is of a circular pipe structure, the nozzle is an L-shaped opening formed by splicing a first opening section and a second opening section, the first opening section of the L-shaped opening is located on the cylindrical surface of the circular pipe structure, and the second opening section of the L-shaped opening is located on the end surface of the circular pipe structure.

Furthermore, the branch pipes are multiple and are arranged on the main pipe at intervals; the spray pipes are multiple, the spray pipes and the branch pipes are arranged in a one-to-one correspondence mode, and each spray pipe is arranged on the corresponding branch pipe.

According to the utility model discloses an on the other hand provides an indoor set of air conditioning, and the indoor set of air conditioning includes: an indoor unit casing; and the cleaning mechanism is arranged in the indoor unit shell and is used for cleaning the space in the indoor unit shell through the cleaning mechanism.

Further, the air conditioning indoor unit further includes: the filter screen is movably arranged in the indoor unit shell and is provided with a filtering position and a cleaning position; when the filter screen is at the filtering position, the filter screen is used for filtering the air entering the indoor machine shell; when the filter screen is in the cleaning position, at least part of the filter screen is arranged opposite to the cleaning mechanism so that the cleaning mechanism cleans the filter screen.

Further, the rack of filter screen is rack structure, and the machine still includes in the air conditioning: the driving gear is rotatably arranged on the indoor unit shell, and the driving gear is matched with the rack structure to drive the filter screen to move to a filtering position or a cleaning position.

Furthermore, the air-conditioning indoor unit further comprises a guide structure, wherein the guide structure is provided with a guide part matched with the shape of the filter screen so as to guide the movement of the filter screen through the guide part.

Further, when the filter screen is at the filtering position, the filter screen is in a horizontal state; when the filter screen is in the cleaning position, the filter screen is in a vertical placement state; the net frame of the filter screen is made of flexible materials.

Further, the air conditioning indoor unit further includes: and the first water receiving tray is arranged below the filter screen so as to receive water flowing down from the filter screen through the first water receiving tray.

Further, the air conditioning indoor unit further includes: the cleaning mechanism is arranged on at least part of the volute assembly.

Furthermore, the air-conditioning indoor unit also comprises a volute tongue, and the volute tongue is arranged opposite to at least part of the volute component; the volute assembly includes: the body part and the volute tongue are arranged at intervals to form an air outlet; the movable volute is movably arranged on the body part and is provided with an avoiding position and an abutting position; when the movable volute is in the avoiding position, the movable volute avoids the air outlet; when the movable volute is in the abutting position, the movable volute moves to the position abutting against the volute tongue to block the air outlet.

Further, the air conditioning indoor unit further includes: and the second water receiving tray is arranged below the body part and is used for receiving water falling from the body part.

Use the technical scheme of the utility model, because the bar opening on the spray tube has the first central plane that extends along its extending direction, and a central plane interval of first central plane and spray tube sets up, like this, when high-pressure rivers from the spout blowout with high speed, high-pressure rivers will produce the recoil effort to the spray tube to form the torque, make the shower nozzle can carry out autogyration, and need not provide external actuating mechanism. Therefore, through the utility model provides a technical scheme can solve the higher technical problem of wiper mechanism's in the air conditioning of prior art manufacturing cost.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view illustrating a washing mechanism of a first washing section according to an embodiment of the present invention;

FIG. 2 shows a schematic structural view of the nozzle of FIG. 1;

FIG. 3 shows a view from A-A in FIG. 2;

fig. 4 is a schematic structural view illustrating a washing mechanism of a second washing section according to an embodiment of the present invention;

FIG. 5 shows a schematic structural view of the nozzle of FIG. 4;

FIG. 6 shows a view from B-B in FIG. 5;

fig. 7 is a cross-sectional view of an air conditioner indoor unit according to an embodiment of the present invention; and

fig. 8 shows a schematic structural diagram of an air conditioner indoor unit provided by an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a cleaning mechanism; 11. a main pipe; 12. a branch pipe; 13. a nozzle; 131. a spout; 20. an indoor unit casing; 21. an air inlet; 30. a filter screen; 40. a drive gear; 50. a guide structure; 60. a first water pan; 70. a volute assembly; 71. a body portion; 72. a movable volute; 80. a volute tongue; 90. a second water pan; 100. a crossflow blower.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 6, a first embodiment of the present invention provides a cleaning mechanism 10, where the cleaning mechanism 10 includes a main pipe 11, a branch pipe 12, and a spray pipe 13. One end of the branch pipe 12 is connected to the main pipe 11 so that the fluid in the main pipe 11 flows into the branch pipe 12, the branch pipe 12 is made of a flexible material, and particularly, the branch pipe 12 may be a hose. Spray tube 13 sets up the other end at branch pipe 12, is provided with spout 131 on spray tube 13, and spout 131 is the bar opening, and the both ends of bar opening extend to spray tube 13's inner wall and spray tube 13 outer wall respectively, and the bar opening has the first central plane that sets up along its extending direction, and first central plane sets up with a central plane interval of spray tube 13 to drive spray tube 13 and be responsible for 11 relatively and rotate under the fluidic effect of spout 131 spun. Specifically, the strip-shaped opening in this embodiment has a first side wall and a second side wall that are disposed opposite to each other, a distance between the first side wall and the second side wall is a width B of the spout 131, the first center plane is located between the first side wall and the second side wall, and a distance between the first center plane and the first side wall is equal to a distance between the second center plane and the second side wall. The nozzle 13 is a circular tube structure, one central plane of the nozzle 13 arranged in parallel with the first central plane is a second central plane, and a certain distance is reserved between the first central plane and the second central plane, so that the nozzle 13 rotates relative to the main tube 11 by water sprayed from the nozzle 131, and the branch tube 12 deforms. In this embodiment, the second sidewall is located on a side of the first sidewall away from the second central plane, a distance between the first sidewall and the first central plane is L, and L > 0.

With this arrangement, when the high-pressure water flow is ejected from the ejection port 131 at a high speed, the high-pressure water flow has a reverse momentum to the ejection pipe 13, and a recoil force is generated to the ejection pipe 13, and a torque is generated. Under the action of the torque M, the spray head can rotate automatically without providing an external driving mechanism to drive the spray head. By adopting the cleaning mechanism 10 provided by the embodiment, the spray head is driven by water power to rotate 360 degrees, a complex motion mechanism is omitted, so that the processing cost, the material cost and the like are reduced, the self-rotation cleaning effect of the cleaning mechanism 10 is realized, the number of the motion mechanisms is reduced, and the cost is reduced. After the spray pipe 13 rotates 360 degrees, the hose connected with the spray pipe 13 is also twisted 360 degrees, and torque T is generated, so that the spray pipe 13 can smoothly rotate by itself, and sufficient water pressure needs to be provided or the torque L needs to be large enough, so that the torque M is always larger than the torque T. When the spray pipe 13 stops cleaning after rotating 360 degrees, the torque generated by the spray pipe 13 disappears, and at the moment, the spray pipe 13 rotates 360 degrees in the reverse direction under the action of the torque T generated by the branch pipe 12 to realize resetting. For stubborn dust stains, if the cleaning effect is insufficient for one time, the cleaning can be carried out for multiple times according to the process so as to achieve the cleaning effect. Meanwhile, the cleaning range is greatly expanded, and the internal structure of the indoor unit of the air conditioner can be thoroughly cleaned (specifically, the through-flow fan blade, the air duct and the filter screen 30 of the indoor unit of the air conditioner can be efficiently cleaned). The spray head in the embodiment can spray steam, and the internal structure of the indoor unit of the air conditioner is cleaned through the sprayed steam.

Specifically, the nozzle 13 in this embodiment may have a circular tube structure, the nozzle 131 has a rectangular opening, and the nozzle 131 is located on the wall of the circular tube structure. With such arrangement, the device positioned on the side part of the spray pipe 13 can be cleaned efficiently by the nozzle 131, and the cleaning effect is improved.

Specifically, the nozzle 13 in this embodiment may also be a circular tube structure, the nozzle 131 is an L-shaped opening formed by splicing a first opening section and a second opening section, the first opening section of the L-shaped opening is located on a cylindrical surface of the circular tube structure, and the second opening section of the L-shaped opening is located on an end surface of the circular tube structure. With such arrangement, the device positioned above the spray pipe 13 obliquely and conveniently and efficiently cleaned by the nozzle 131 can be conveniently realized, and the cleaning effect is further improved.

In the present embodiment, the branch pipe 12 is plural, and the plural branch pipes 12 are provided at intervals on the main pipe 11. The number of the spray pipes 13 is plural, the plurality of spray pipes 13 are provided in one-to-one correspondence with the plurality of branch pipes 12, and each spray pipe 13 is provided on the corresponding branch pipe 12. With this arrangement, the rotation of the plurality of nozzles 13 can further clean the internal devices of the air conditioning indoor unit in a wide range, thereby further improving the cleaning effect. Specifically, three spray pipes 13 may be uniformly arranged along the length direction of the main pipe 11, so as to realize the omnibearing cleaning of the inside of the indoor unit of the air conditioner in the length direction of the main pipe 11.

As shown in fig. 7 and 8, a second embodiment of the present invention provides an indoor unit of an air conditioner, where the indoor unit of an air conditioner includes an indoor unit casing 20 and a cleaning mechanism 10, the cleaning mechanism 10 is disposed in the indoor unit casing 20 to clean a space in the indoor unit casing 20 through the cleaning mechanism 10, and the cleaning mechanism 10 is the cleaning mechanism 10 provided in the first embodiment. Specifically, the indoor unit of air conditioner in this embodiment includes first washing portion and second washing portion, and first washing portion and second washing portion interval set up, and first washing portion and second washing portion all include wiper mechanism 10, and first washing portion sets up in the oblique top of second washing portion to wash the different structures in the indoor unit of air conditioner through first washing portion and second washing portion respectively. The first cleaning part and the second cleaning part are arranged to be distributed, and meanwhile, the cleaning mechanism 10 can realize self-rotation, so that the surfaces of all parts inside the air conditioner indoor unit can be cleaned conveniently in an all-around mode, and a complex movement mechanism is not needed. The air conditioner indoor unit in the embodiment is of a steam self-cleaning structure. Specifically, the nozzle 131 of the cleaning mechanism 10 of the first cleaning portion has a rectangular opening.

In this embodiment, the indoor unit of the air conditioner further includes a filter screen 30, the filter screen 30 is movably disposed in the indoor unit casing 20, and the filter screen 30 has a filtering position and a cleaning position. When the filter screen 30 is in the filtering position, the filter screen 30 is used for filtering air entering the indoor unit casing 20, and the filter screen 30 is disposed opposite to the air inlet 21 of the indoor unit casing 20. When the filter screen 30 is in the cleaning position, at least a portion of the filter screen 30 is disposed opposite to the cleaning mechanism 10, so that the cleaning mechanism 10 cleans the filter screen 30. With such an arrangement, it is possible to avoid the situation that water is sprayed from the air inlet 21 when the filter screen 30 is cleaned. Specifically, the cleaning mechanism 10 in the first cleaning unit in the present embodiment is used to clean the filter 30, and the filter 30 can be cleaned in all directions in the longitudinal direction by a plurality of nozzles provided at intervals in the first cleaning unit along the extending direction of the main pipe 11.

With the air conditioning indoor unit according to the present embodiment, when the filter screen 30 is cleaned, the filter screen 30 is moved from the horizontal filtering position to the vertical filtering position. The filter screen 30 is then moved from the vertical position to the horizontal position, during which the filter screen 30 is always in the cleaning position. That is, in the movement process in which the filter screen 30 moves from the position in the vertical direction to the position in the horizontal direction, the cleaning mechanism 10 in the first cleaning portion is opened to clean the filter screen 30 by the cleaning mechanism 10, and the cleaning effect can be further improved by such a cleaning manner.

Specifically, the net rack of the filter screen 30 in this embodiment is a rack structure, the air conditioning indoor unit further includes a driving gear 40, the driving gear 40 is rotatably disposed on the indoor unit casing 20, and the driving gear 40 is matched with the rack structure to drive the filter screen 30 to move to the filtering position or the cleaning position. By adopting the arrangement, the filter screen 30 can be conveniently driven to move, and the automation degree of the device is improved.

In this embodiment, the air conditioning indoor unit further includes a guide structure 50, and the guide structure 50 has a guide portion adapted to the outer shape of the filter screen 30 to guide the movement of the filter screen 30 through the guide portion. Specifically, the guide structure 50 is a guide rail, and guides the movement of the filter screen 30 under the guiding action of the guide rail.

Specifically, when the filter screen 30 is at the filtering position, the filter screen 30 is in the horizontal placement state, and the air intake 21 is located on the horizontal panel at the top. When the filter screen 30 is at the cleaning position, the filter screen 30 is in a vertical placement state, and the cleaning mechanism 10 of the first cleaning portion is disposed opposite to the vertical panel, so that the filter screen 30 is cleaned by the cleaning mechanism 10 of the first cleaning portion. The net mount of the filter net 30 is made of a flexible material so as to move the filter net 30 to a filtering position or a cleaning position.

In this embodiment, the indoor unit of an air conditioner further includes a first water pan 60, and the first water pan 60 is disposed below the filter screen 30 to receive water flowing down from the filter screen 30 through the first water pan 60. By adopting the arrangement, the water flowing down from the first water receiving disc 60 can be prevented from flowing to other components of the air conditioner indoor unit, and further the normal use and work of other components are influenced.

In this embodiment, the air conditioning indoor unit further includes a scroll assembly 70, and the cleaning mechanism 10 is disposed on at least a portion of the scroll assembly 70. Specifically, the cleaning mechanism 10 of the second cleaning portion in the present embodiment is provided on at least a portion of the scroll assembly 70 to be cleaned by the cleaning mechanism 10 of the second cleaning portion. The fan blades and the air duct parts can be cleaned in all directions in the whole length direction through a plurality of spray pipes 13 arranged at intervals along the extending direction of the main pipe 11 on the second cleaning part. Specifically, the nozzle 131 of the cleaning mechanism 10 of the second cleaning portion is an L-shaped opening.

Specifically, the air conditioning indoor unit in this embodiment further includes a volute tongue 80, and the volute tongue 80 is disposed opposite to at least a portion of the volute component 70. The volute assembly 70 includes a body 71 and a movable volute 72, the body 71 being spaced from the volute tongue 80 to form an air outlet. The movable scroll 72 is movably provided on the body portion 71, and the movable scroll 72 has an escape position and an abutment position. When the movable volute 72 is in the avoiding position, the movable volute 72 avoids the air outlet, so that fresh air after heat exchange in the air-conditioning indoor unit is blown out through the air outlet. When the movable scroll 72 is in the abutting position, the movable scroll 72 moves to a position abutting against the scroll tongue 80 to block the air outlet, and the cleaning mechanism 10 of the second cleaning portion cleans the scroll tongue 80 and other components, so that water during cleaning can be prevented from leaking from the air outlet.

In this embodiment, the indoor unit of the air conditioner further includes a second water pan 90, and the second water pan 90 is disposed below the body portion 71 to receive water falling from the body portion 71 through the second water pan 90. By adopting the arrangement, the water flowing down from the second water receiving disc 90 can be prevented from flowing to other components of the air conditioner indoor unit, and further the normal use and work of other components are influenced.

When the components inside the air conditioning indoor unit need to be cleaned, the movable scroll 72 of the air conditioning indoor unit is first moved to the abutting position. The cleaning process for the filter screen 30 is as follows: the drum (i.e., the driving gear 40) drives the filter screen 30 to move from the horizontal position to the track in the vertical direction, the upper nozzle (i.e., the first cleaning part) starts to spray steam, and the filter screen 30 staying on the vertical track (i.e., the guide structure 50) of the filter screen 30 is cleaned, and the cleaning range of the upper nozzle is shown in fig. 7. Under the torque effect that water conservancy produced, the upper nozzle can 360 autorotations to can satisfy the washing of filter screen 30 whole surface, the shower nozzle realizes restoring to the throne under hose moment of torsion T effect after the washing finishes. The cleaned water flows down to the first drip tray 60 and is discharged to the outside.

The cleaning process for the crossflow blower 100, the duct (volute, movable volute 72, volute tongue 80) is as follows: the movable volute 72 is overlapped with the upper wall surface of the air duct (i.e., the volute tongue 80) to form a water retaining structure to prevent the steam sprayed from the lower nozzle (i.e., the second cleaning part) from leaking to the outside of the air conditioner. The lower nozzle sprays steam, and the cleaning range is shown in fig. 7. The lower spray head rotates 360 degrees by self to complete the cleaning of the whole cross flow fan 100 and the air duct (the volute, the movable volute 72 and the volute tongue 80), and the spray head is reset under the action of the hose torque T after the cleaning is finished. The water after washing flows to the second drain pan 90 through the volute and the movable volute 72 and is drained to the outside.

Drying the inside of the air conditioner: after the upper spray head and the lower spray head finish cleaning the whole air conditioner, the indoor unit of the air conditioner is started to be in a heating state, the cross flow fan 100 is started, and water on the internal structure of the air conditioner is dried. The cleaning of the air conditioner is completed through the steps.

In this embodiment, the first spray head may be a plurality of, and the second spray head may also be a plurality of, and the first spray head and the second spray head may be disposed at corresponding positions according to specific needs.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the distributed steam automatic cleaning air conditioner technology is adopted, the cleaning range is greatly expanded, and the internal structure of the air conditioner can be thoroughly cleaned. The self-rotating cleaning device is adopted, 360-degree rotation is realized by means of hydraulic drive, and a complex movement mechanism is omitted, so that the cost of processing, materials and the like is reduced.

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.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; 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 protection of the present application is not to be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (13)

1. A cleaning mechanism, comprising:

a main tube (11);

a branch pipe (12), one end of the branch pipe (12) being connected to the main pipe (11) so that the fluid in the main pipe (11) flows into the branch pipe (12), the branch pipe (12) being made of a flexible material;

spray tube (13), spray tube (13) set up the other end of branch pipe (12), be provided with spout (131) on spray tube (13), spout (131) are the bar opening, bar open-ended both ends extend to respectively the inner wall of spray tube (13) with spray tube (13) outer wall, the bar opening has the first central plane that sets up along its extending direction, first central plane with a central plane interval of spray tube (13) sets up, in order drive under spout (131) spun fluid effect spray tube (13) is relative be responsible for (11) and rotate.

2. The cleaning mechanism according to claim 1, wherein the spray pipe (13) is a circular pipe structure, the spray opening (131) is a rectangular opening, and the spray opening (131) is located on the pipe wall of the circular pipe structure.

3. The cleaning mechanism according to claim 1, wherein the nozzle (13) is a circular tube structure, the nozzle (131) is an L-shaped opening formed by a first opening section and a second opening section, the first opening section of the L-shaped opening is located on a cylindrical surface of the circular tube structure, and the second opening section of the L-shaped opening is located on an end surface of the circular tube structure.

4. The washing mechanism according to claim 1, characterized in that the branch pipe (12) is provided in plurality, and a plurality of the branch pipes (12) are arranged on the main pipe (11) at intervals; the number of the spray pipes (13) is multiple, the spray pipes (13) and the branch pipes (12) are arranged in a one-to-one correspondence mode, and the spray pipes (13) are arranged on the corresponding branch pipes (12).

5. An air conditioning indoor unit, characterized in that, the air conditioning indoor unit includes:

an indoor unit casing (20);

a cleaning mechanism provided in the indoor unit casing (20) to clean a space in the indoor unit casing (20) by the cleaning mechanism, the cleaning mechanism being the cleaning mechanism according to any one of claims 1 to 4.

6. An indoor unit of an air conditioner according to claim 5, further comprising:

the filter screen (30) is movably arranged in the indoor unit shell (20), and the filter screen (30) is provided with a filtering position and a cleaning position; the filter screen (30) is used for filtering air entering the indoor unit casing (20) when the filter screen (30) is in the filtering position; when the filter screen (30) is located at the cleaning position, at least part of the filter screen (30) is arranged opposite to the cleaning mechanism, so that the cleaning mechanism cleans the filter screen (30).

7. The indoor unit of claim 6, wherein the net frame of the filter net (30) has a rack structure, and the indoor unit further comprises:

the driving gear (40), the driving gear (40) rotationally sets up on the indoor unit casing (20), the driving gear (40) with rack structure cooperation is in order to drive filter screen (30) move to filter position or wash the position.

8. The indoor unit of claim 6, further comprising a guide structure (50), wherein the guide structure (50) has a guide portion adapted to an outer shape of the filter screen (30) to guide movement of the filter screen (30) therethrough.

9. The indoor unit of claim 6, wherein the filter screen (30) is in a horizontally placed state when the filter screen (30) is in the filtering position; when the filter screen (30) is at the cleaning position, the filter screen (30) is in a vertical placement state; the net rack of the filter screen (30) is made of flexible materials.

10. An indoor unit of an air conditioner according to claim 6, further comprising:

the first water pan (60) is arranged below the filter screen (30) so as to receive water flowing up and down from the filter screen (30) through the first water pan (60).

11. An indoor unit of an air conditioner according to claim 5, further comprising:

a volute assembly (70), the cleaning mechanism disposed on at least a portion of the volute assembly (70).

12. The air conditioning indoor unit of claim 11, further comprising a volute tongue (80), wherein the volute tongue (80) is disposed opposite at least a portion of the volute assembly (70); the volute assembly (70) includes:

a body (71), wherein the body (71) and the volute tongue (80) are arranged at intervals to form an air outlet;

a movable scroll (72) movably provided on the body portion (71), the movable scroll (72) having an avoidance position and an abutment position; when the movable volute (72) is in the avoiding position, the movable volute (72) avoids the air outlet; when the movable volute (72) is in the abutting position, the movable volute (72) moves to a position abutting against the volute tongue (80) to block the air outlet.

13. An indoor unit of an air conditioner according to claim 12, further comprising:

a second water receiving tray (90) disposed below the body part (71) to receive water falling from the body part (71) through the second water receiving tray (90).

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