A cleaning apparatus and method

Abstract

The application discloses a cleaning device and method, and relates to the technical field of vehicle air pipes, wherein the cleaning device comprises: a first spray head arranged in a main air pipe, the first spray head being connected with a water inlet pipe; a mounting box connected with the main air pipe, the bottom of the mounting box being connected with a drain pipe; a limiting sleeve movably arranged in the mounting box; a flexible screw rod having opposite driving ends and cleaning ends, the cleaning ends being provided with brush washing parts, the flexible screw rod being partially arranged in the limiting sleeve; and a driving assembly drivingly connected with the driving ends and used for driving the driving ends to rotate. The first spray head sprays cleaning agents, the main air pipe blows the cleaning agents into air outlet sub-pipes, the cleaning agents are attached to the inner side walls of the air outlet sub-pipes, and the limiting sleeve drives the cleaning ends to extend into one air outlet sub-pipe; the driving assembly drives the flexible screw rod to rotate, the brush washing parts scrape and absorb dirt, and the cleaning of the inner side walls of the air outlet sub-pipes is conveniently completed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air duct for vehicle, in particular to a cleaning device and method. BACKGROUND

[0002] After a certain period of use, dust, bacteria and food residues are easily accumulated in the air outlet pipe of the air conditioner of the vehicle. In humid weather, such as plum rain season, a large amount of mold will accumulate in the air outlet pipe of the air conditioner. The mold reproduces in the air outlet pipe of the air conditioner and releases a foul odor, which accumulates in the air outlet pipe of the air conditioner. After starting the air conditioner of the vehicle and blowing air into the vehicle, the foul odor in the air outlet pipe of the air conditioner will enter the vehicle, thereby blowing the air with the foul odor into the vehicle. When cleaning the air outlet pipe of the air conditioner, the IP panel of the vehicle often needs to be disassembled, making it inconvenient to clean the inside of the air outlet pipe of the air conditioner. SUMMARY

[0003] The main purpose of the present application is to provide a cleaning device and method, which aims to improve the problem of inconvenient cleaning of the inside of the air outlet pipe of the air conditioner.

[0004] To achieve the above-mentioned purpose, the cleaning device is used to clean the air outlet pipe of the air conditioner of the vehicle, the air outlet pipe of the air conditioner of the vehicle includes a total air pipe and a plurality of air outlet sub-pipes which are connected to the total air pipe, and the cleaning device includes:

[0005] A first spray head is arranged in the total air pipe, and the first spray head is connected with a water inlet pipe;

[0006] An installation box is connected to the total air pipe, and a drain pipe is connected to the bottom of the installation box;

[0007] A limiting sleeve is movably installed in the installation box;

[0008] A flexible screw rod has opposite driving end and cleaning end, the cleaning end is provided with a brush washing part, and the flexible screw rod is partially limited and arranged in the limiting sleeve; and

[0009] A driving assembly is drivingly connected to the driving end to drive the driving end to rotate.

[0010] In an embodiment, the installation box is provided with a first telescopic member and a second telescopic member, the first telescopic member includes a first fixed part and a first movable part which moves linearly along a first direction relative to the first fixed part, the second telescopic member includes a second fixed part and a second movable part which moves linearly along a second direction relative to the second fixed part, the second fixed part is arranged on the first movable part, and the limiting sleeve is connected to the second movable part.

[0011] The first direction and the second direction are perpendicular to each other.

[0012] In one embodiment, the drive assembly comprises:

[0013] A mounting plate, arranged on the mounting box;

[0014] At least two driving wheels are rotatably mounted on the mounting plate, the flexible screw rod is located between the at least two driving wheels, and the flexible screw rod abuts against the driving wheels; and

[0015] The transmission member is used to drive at least two of the driving wheels to rotate in the same direction.

[0016] In one embodiment, a spiral groove is formed on the outer side of each driving wheel, and the spiral groove is adapted to fit the flexible spiral rod.

[0017] In one embodiment, a spiral hole is formed through the mounting plate, and the flexible spiral rod is spirally inserted into the spiral hole.

[0018] In one embodiment, the outer side surface of each of the driving wheels is provided with a first external tooth shape, the transmission member includes a transmission ring gear, the inner side wall of the transmission ring gear is provided with an internal tooth shape, the axis of the transmission member is parallel to the axis of the driving wheel, at least part of the multiple driving wheels is located in the transmission member, and the circumferential sides of the driving wheels are all meshed with the inner circumferential sides of the transmission member.

[0019] In one embodiment, the outer side wall of the transmission gear ring is provided with a second external tooth shape, and the drive assembly further comprises:

[0020] a driving motor, disposed on the mounting plate; and

[0021] A driving wheel is connected to the output shaft of the driving motor. A third external tooth shape is provided on the circumference of the driving wheel, and the third external tooth shape is meshed with the second external tooth shape.

[0022] In one embodiment, a squeezing assembly is provided in the installation box, and the squeezing assembly is used to squeeze out water and dirt in the scrubbing portion.

[0023] The present invention also provides a cleaning method for a cleaning device, the method comprising the following steps:

[0024] injecting a cleaning agent into the water inlet pipe;

[0025] Control the fan in the main air duct to start, so that the fan can supply air to all the air outlet sub-ducts;

[0026] Controlling the pump body on the liquid inlet flow path provided with the first nozzle to open, so that the first nozzle sprays the mist cleaning agent in the main air duct, so that the mist cleaning agent adheres to the inner wall of the air outlet sub-duct along with the air discharged by the fan;

[0027] Controlling the second telescopic member so that the second movable portion moves linearly along a second direction, thereby driving the cleaning end of the flexible spiral rod to extend out of the mounting box and align with an air outlet sub-pipe;

[0028] Controlling the first telescopic member so that the first movable portion moves linearly along a first direction, thereby driving the cleaning end of the flexible spiral rod to extend into the air outlet sub-duct;

[0029] Controlling the driving assembly to drive the cleaning end of the flexible spiral rod to move in a spiral motion, so that the scrubbing portion scrapes the inner wall of the air outlet pipe and absorbs water stains on the inner wall of the air outlet pipe;

[0030] Controlling the driving assembly to drive the flexible spiral rod to move, and causing the steel wire and the foam to extend out of the air outlet pipe;

[0031] Controlling the first telescopic member so that the first movable portion moves linearly along a first direction to drive the cleaning end of the flexible spiral rod to extend out of the air outlet pipe;

[0032] controlling the second telescopic member so that the second movable portion moves linearly along a second direction to drive the cleaning end of the flexible spiral rod into the installation box;

[0033] Discharge the water and sewage in the scrubbing part through a drain pipe;

[0034] Control the fan to continue running to dry the inner wall of the air outlet duct.

[0035] In one embodiment, controlling the fan to continue running to dry the inner wall of the air outlet duct includes:

[0036] Switch the vehicle air conditioner to warm air mode to speed up the drying of the air outlet pipe.

[0037] The technical solution of the present invention adopts a first nozzle and a water inlet pipe to spray a mist-shaped cleaning agent in the main air duct. When the main air duct supplies air to the air outlet sub-duct, the mist-shaped cleaning agent can be blown into the air outlet sub-duct, and the cleaning agent can adhere to the inner wall of the air outlet sub-duct and wet the inner wall of the air outlet sub-duct, thereby softening the dirt containing dust, bacteria and food residues; the cleaning agent can disinfect the inner wall of the air outlet sub-duct; then the limit sleeve is controlled to move, and the limit sleeve can drive the cleaning end of the flexible spiral rod to align and extend into an air outlet sub-duct to be cleaned; finally, the driving component is controlled to drive the flexible spiral rod to spirally move, so that the flexible spiral rod can extend into the air outlet sub-duct along the extension direction of the air outlet sub-duct, and the flexible spiral rod drives the brushing part to rotate, which can scrape the dirt attached to the inner wall of the air outlet sub-duct to form water pollution. Further, the brushing part absorbs the water pollution on the inner wall of the air outlet sub-duct, thereby completing the cleaning of the inner wall of the air outlet sub-duct. After cleaning is completed, the driving component is controlled to enable the flexible spiral rod to drive the brushing part to extend out of the air outlet pipe, and then the limiting sleeve is controlled to drive the cleaning end of the flexible spiral rod to extend into the installation box. The water stains on the brushing part can drip to the bottom of the installation box and be discharged from the drain pipe; there is no need to disassemble the air outlet pipe, which is more convenient for cleaning the air outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0039] Figure 1 A schematic structural diagram of an embodiment of a cleaning device provided by the present invention;

[0040] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0041] Figure 3 This is a schematic plan view of the structure of the driving assembly in the cleaning device provided by the present invention;

[0042] Figure 4 A schematic structural diagram of another embodiment of the cleaning device provided by the present invention;

[0043] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0044] Figure 6 for Figure 4 Schematic diagram of the structure of the middle support rod.

[0045] BRIEF DESCRIPTION OF DRAWINGS

[0046] 1. total air pipe; 11. air outlet sub-pipe; 12. fan; 2. first nozzle; 21. water inlet pipe; 3. mounting box; 31. first telescopic part; 32. second telescopic part; 33. inlet and outlet; 34. second nozzle; 35. perforation; 36. drain pipe; 4. limiting sleeve; 5. flexible screw rod; 51. cleaning end; 6. brush washing part; 61. steel wire; 62. foam; 7. driving assembly; 71. mounting plate; 711. guide hole; 712. spiral hole; 713. support rod; 72. driving wheel; 73. transmission part; 74. driving motor; 75. driving wheel; 8. storage box.

[0047] The purposes, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0049] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0050] In addition, if the embodiments of the present application involve descriptions of “first”, “second” and the like, the descriptions of “first”, “second” and the like are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first” and “second” can explicitly or implicitly include at least one of the features. In addition, “and / or” or “and / or” appearing throughout the text means that the three parallel schemes are included, for example, “A and / or B” includes A scheme, or B scheme, or A and B are satisfied at the same time. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present application.

[0051] A car is usually equipped with multiple air outlets to correspond to different air outlet modes. Each air outlet is connected to an air outlet sub-duct, and the air inlets of the multiple air outlet sub-ducts are connected to the same main air duct, and the air inlet of the main air duct is connected to the air inlet duct. During the use of the car, dust and bacteria can easily float into the air outlet sub-duct from the air outlet. When passengers eat food in the car, some food residues will float into the air outlet sub-duct from the air outlet, and dust, bacteria and food residues will accumulate in the air outlet sub-duct.

[0052] In humid weather, such as the rainy season, mold can accumulate in the air conditioning ducts. This mold multiplies and releases unpleasant odors, which then accumulate in the air outlet ducts. When the car air conditioner is turned on and air is blown into the vehicle, the odor from the air outlet ducts can enter the vehicle. Before cleaning the air outlet ducts, the vehicle's IP panel often needs to be removed, making cleaning the ducts inconvenient.

[0053] The present invention provides a cleaning device.

[0054] See also Figure 1 and Figure 2 In one embodiment of the present invention, the cleaning device is used to clean the air duct of a vehicle air conditioner, wherein the air duct of the vehicle air conditioner includes a main air duct 1 and a plurality of air outlet sub-ducts 11 connected to the main air duct 1. The cleaning device includes:

[0055] A first nozzle 2 is used to be arranged in the main air duct 1, and the first nozzle 2 is connected to a water inlet pipe 21;

[0056] The installation box 3 is used to connect to the main air duct 1, and the bottom of the installation box 3 is connected to a drain pipe 36;

[0057] A limiting sleeve 4 is movably installed in the installation box 3;

[0058] A flexible spiral rod 5 has a driving end and a cleaning end 51 opposite to each other, the cleaning end 51 is provided with a brushing portion 6, and a portion of the flexible spiral rod 5 is limitedly inserted into the limiting sleeve 4; and

[0059] The driving component 7 is drivingly connected to the driving end to drive the driving end to move spirally.

[0060] The technical solution of the present invention adopts the first nozzle 2 and the water inlet pipe 21 to spray the cleaning agent in a mist-like shape in the main air duct 1. When the main air duct 1 supplies air to the air outlet sub-pipe 11, the cleaning agent in a mist-like shape can be blown into the air outlet sub-pipe 11. The cleaning agent can adhere to the inner wall of the air outlet sub-pipe 11 and wet the inner wall of the air outlet sub-pipe 11, thereby softening the dirt containing dust, bacteria and food residues; the cleaning agent can disinfect the inner wall of the air outlet sub-pipe 11; then the limiting sleeve 4 is controlled to move, and the limiting sleeve 4 can drive the The cleaning end 51 of the flexible spiral rod 5 is aligned and extended into one of the air outlet pipes 11 to be cleaned; finally, the driving component 7 is controlled to drive the flexible spiral rod 5 to spirally move, so that the flexible spiral rod 5 can be extended into the air outlet pipe 11 along the extension direction of the air outlet pipe 11, and the flexible spiral rod 5 drives the brushing part 6 to rotate, which can scrape the dirt attached to the inner wall of the air outlet pipe 11 to form water stains. Furthermore, the brushing part 6 absorbs the water stains on the inner wall of the air outlet pipe 11, completing the cleaning of the inner wall of the air outlet pipe 11. After cleaning is completed, the driving component 7 is controlled to enable the flexible screw rod 5 to drive the brushing part 6 to extend out of the air outlet pipe 11, and then the limiting sleeve 4 is controlled to drive the cleaning end 51 of the flexible screw rod 5 to extend into the installation box 3. The water and dirt on the brushing part 6 can drip to the bottom of the installation box 3 and be discharged from the drain pipe 36. There is no need to disassemble the air outlet pipe 11, and it is more convenient to clean the air outlet pipe 11.

[0061] A fan 12 is provided in the main air duct 1, and the air outlet end of the main fan 12 faces the air outlet sub-duct 11. The first nozzle 2 is used to be installed at the air outlet end of the fan 12. After the first nozzle 2 sprays out the mist cleaning agent, the fan 12 can blow the mist cleaning agent into the air outlet sub-duct 11 in time.

[0062] The flexible spiral rod 5 can be a common spring, including a spring wire spirally wound along the length direction, which can be elastically bent to adapt to the shape change of the air outlet pipe 11. When the cleaning end 51 of the flexible spiral rod 5 moves to the curved section in the air outlet pipe 11, the bent flexible spiral rod 5 is prone to mismatch with the curved section in the air outlet pipe 11, that is, the cleaning end 51 is not aligned with the bending direction of the curved section of the air outlet pipe 11. By controlling the rotation of the flexible spiral rod 5, the cleaning end 51 can be aligned with the bending direction of the curved section of the air outlet pipe 11 to ensure that the cleaning end 51 passes through the curved section of the air outlet pipe 11, ensuring the cleaning end 51 to move forward along the length direction of the air outlet pipe 11, and finally ensuring that the brushing part 6 cleans the inner wall of the air outlet pipe 11.

[0063] The installation box 3 is provided with a first telescopic part 31 and a second telescopic part 32, the first telescopic part 31 comprises a first fixed part and a first movable part which moves linearly along a first direction relative to the first fixed part, the second telescopic part 32 comprises a second fixed part and a second movable part which moves linearly along a second direction relative to the second fixed part, the second fixed part is arranged on the first movable part, and the limiting sleeve 4 is connected to the second movable part.

[0064] The first direction and the second direction are perpendicular to each other.

[0065] An inlet and outlet 33 is arranged on the side wall of the installation box 3 and communicates with the main air pipe 1, an opening is arranged on the side wall of the main air pipe 1 and is consistent with the inlet and outlet 33, so that the installation box 3 communicates with the main air pipe 1. The inlet and outlet 33 is aligned with the movable range of the first movable part, and the second movable part is arranged opposite to the inlet and outlet 33, so that the second movable part passes through the inlet and outlet 33. The air inlets of the plurality of air outlet sub-pipes 11 are arranged along the moving direction of the second movable part in sequence, and the air inlets of the air outlet sub-pipes 11 are located on the moving surface of the second movable part.

[0066] The second telescopic part 32 is controlled to drive the second movable part to move, the second movable part can drive the limiting sleeve 4 to pass through the inlet and outlet 33 and extend into the main air duct, the cleaning end 51 of the flexible spiral rod 5 moves with the limiting sleeve 4, by controlling the movement of the second movable part, the cleaning end 51 of the flexible spiral rod 5 can be aligned with the air inlet of any air outlet sub-pipe 11. The first telescopic part 31 is controlled to drive the first movable part to move, the first movable part can drive the second movable part, the limiting sleeve 4 and the cleaning end 51 of the flexible spiral rod 5 to approach the air outlet sub-pipe 11, and the cleaning end 51 of the flexible spiral rod 5 is partially inserted into the air outlet sub-pipe 11. By controlling the second telescopic part 32 to drive the second movable part to move, the cleaning end 51 of the flexible spiral rod 5 can be aligned with different air outlet sub-pipes 11 in sequence, and by cooperating with the first telescopic part 31, the cleaning end 51 can be inserted into different air outlet sub-pipes 11 in sequence.

[0067] The first telescopic part 31 and the second telescopic part 32 can be air cylinders or electric push rods.

[0068] Please refer to Figure 2 and Figure 3 , the driving assembly 7 comprises:

[0069] The mounting plate 71 is arranged on the installation box 3;

[0070] At least two driving wheels 72 are rotatably mounted on the mounting plate 71 , the flexible screw rod 5 is located between the at least two driving wheels 72 , and the flexible screw rod 5 abuts against the driving wheels 72 ; and

[0071] The transmission member 73 is used to drive at least two of the driving wheels to rotate in the same direction.

[0072] When the multiple driving wheels 72 rotate in the same direction through the transmission member 73, the multiple driving wheels 72 can drive the flexible spiral rod 5 to rotate. When the flexible spiral rod 5 rotates, it can drive the cleaning end 51 of the flexible spiral rod 5 to rotate, thereby driving the brushing part 6 to rotate. The brushing part 6 can scrape and clean the inner wall of the air outlet pipe 11.

[0073] In one embodiment, each of the drive wheels 72 has a spiral groove on its outer surface, which is adapted to fit within the flexible screw rod 5. When the drive wheels 72 rotate, the spiral groove cooperates with the flexible screw rod 5 to enable the flexible screw rod 5 to move along its length. By controlling the rotation direction of the drive wheels 72, the flexible screw rod 5 can be reciprocated along its length, thereby achieving the spiral motion of the flexible screw rod 5.

[0074] A guide hole 711 is formed through the mounting plate 71 . The diameter of the guide hole 711 can be a straight hole, and the radius of the guide hole 711 is larger than the spiral radius of the flexible spiral rod 5 , thereby facilitating the flexible spiral rod 5 to pass through the guide hole 711 .

[0075] See also Figure 3 、 Figure 4 and Figure 5 In another embodiment, a spiral hole 712 is formed through the mounting plate 71, and the flexible spiral rod 5 is spirally inserted into the spiral hole 712. When the flexible spiral rod 5 is controlled to rotate, the flexible spiral rod 5 rotates and passes through the spiral hole 712, thereby achieving movement of the flexible spiral rod 5 along the length of the flexible spiral rod 5. By controlling the rotation direction of the driving wheel 72, the flexible spiral rod 5 can be reciprocated along its length, thereby achieving spiral movement of the flexible spiral rod 5, which facilitates the flexible spiral rod 5 to extend into or out of the air outlet pipe 11.

[0076] See also Figure 3 and Figure 6A support rod 713 is rotatably connected to the mounting plate 71. The support rod 713 is coaxial with the flexible spiral rod 5 and is located inside the flexible spiral rod 5. The circumferential side of the support rod 713 is against the circumferential side of the flexible spiral rod 5. The support rod 713 can support the flexible spiral rod 5 from the inner side of the flexible spiral rod 5, thereby reducing the deformation of the flexible spiral rod 5 toward its inner side.

[0077] Each of the drive wheels 72 has a first external tooth profile on its outer side. The transmission member 73 includes a transmission gear ring, the inner sidewall of which is provided with an internal tooth profile. The axis of the transmission member is parallel to the axis of the drive wheels 72. At least a portion of the drive wheels 72 is located within the transmission member, and the circumference of each drive wheel 72 meshes with the inner circumference of the transmission member. When the transmission gear rotates, the drive wheels 72 are driven to rotate synchronously.

[0078] Each of the driving wheels 72 includes a gear section and a driving section sequentially arranged along the axial direction, and the circumferential side of the driving section abuts against the circumferential side of the flexible spiral rod 5. Furthermore, the spiral groove is opened on the circumferential side wall of the driving section.

[0079] The first external tooth shape is arranged on the circumference of the gear segment. The radius of the gear segment is smaller than the radius of the driving segment. The gear segment is located in the transmission ring, which can reduce the contact between the gear segment and the flexible spiral rod 5.

[0080] See also Figure 2 and Figure 3 At least two of the driving wheels 72 can be set to two, three or more, and at least two of the driving wheels 72 are set around the circumference of the flexible spiral rod 5 to limit and guide the flexible spiral rod 5.

[0081] The outer side wall of the transmission gear ring is provided with a second external tooth shape, and the drive assembly 7 further includes:

[0082] A driving motor 74 is provided on the mounting plate 71; and

[0083] The driving wheel 75 is connected to the output shaft of the driving motor 74 . A third external tooth profile is provided on the circumference of the driving wheel 75 . The third external tooth profile is meshed with the second external tooth profile.

[0084] When the driving motor 74 is started, the driving wheel 75 can be driven to drive the transmission ring gear to rotate forward or reverse, thereby realizing automatic control of the spiral movement of the flexible spiral rod 5 as a whole.

[0085] The installation box 3 is provided with a squeezing assembly for squeezing out the water dirt in the brushing part 6. After the brushing part 6 completes the cleaning of one air outlet sub-tube 11 and is received back into the installation box 3, the squeezing assembly can squeeze out the water dirt in the brushing part 6.

[0086] The squeezing assembly comprises two oppositely arranged clamping plates, the installation box 3 is provided with a third telescopic member corresponding to each of the two clamping plates, the third telescopic member can be a pneumatic cylinder or an electric push rod, the output shaft of the third telescopic member is connected with the clamping plate, and the shell of the third telescopic member is fixedly installed on the inner side wall of the installation box 3. By controlling the first telescopic member 31 and the second telescopic member 32, the brushing part 6 on the cleaning end 51 can be moved between the two clamping plates, and by controlling the two third telescopic members to synchronously extend and retract, the two clamping plates can approach or move away from each other, when the two clamping plates approach each other, the two clamping plates can squeeze the brushing part 6, so as to squeeze out the water in the brushing part 6.

[0087] The squeezing assembly can also be a structure for realizing reciprocating squeezing in the prior art.

[0088] The installation box 3 is also provided with a second spray head 34, the second spray head 34 is connected with the water inlet pipe 21, and through the second spray head 34, cleaning agent water flow can be sprayed to the brushing part 6; the second spray head 34 cooperates with the two clamping plates to effectively squeeze out the water dirt in the brushing part 6, so as to realize the cleaning of the brushing part.

[0089] The brushing part 6 comprises steel wires 61 and foam 62, the steel wires 61 have good scraping effect and can effectively scrape the inner side wall of the air outlet sub-tube 11, the foam has good water absorption, after the steel wires 61 scrape the inner side wall of the air outlet sub-tube 11, the dirt on the inner side wall of the air outlet sub-tube 11 mixes with the cleaning agent to form water dirt, the foam can wipe off and absorb the water dirt, thereby reducing the residue of the dirt on the inner side wall of the air outlet sub-tube 11.

[0090] The mounting plate 71 is located outside the installation box 3, the side wall of the installation box 3 is provided with a perforation 35 for penetrating the flexible spiral rod 5, and the side of the mounting plate 71 away from the installation box 3 is fixedly connected with a receiving box 8 for receiving the flexible spiral rod 5.

[0091] The application also provides a cleaning method of the cleaning device, the air outlet sub-tube 11 is cleaned by the cleaning device, and the method comprises the following steps:

[0092] Injecting cleaning agent into the water inlet pipe 21;

[0093] controlling the fan 12 in the total air pipe 1 to start, so that the fan 12 blows air to all the air outlet sub-pipes 11;

[0094] controlling the pump body on the liquid inlet flow path provided with the first spray head 2 to start, so that the first spray head 2 sprays the mist cleaning agent in the total air pipe 1, and the mist cleaning agent adheres to the inner wall of the air outlet sub-pipe 11 with the air blown by the fan 12;

[0095] controlling the second telescopic part 32, so that the second movable part moves linearly in the second direction, to drive the cleaning end 51 of the flexible spiral rod 5 to extend out of the installation box 3 and align with one air outlet sub-pipe 11;

[0096] controlling the first telescopic part 31, so that the first movable part moves linearly in the first direction, to drive the cleaning end 51 of the flexible spiral rod 5 to extend into the air outlet sub-pipe 11;

[0097] controlling the driving assembly 7, to drive the cleaning end 51 of the flexible spiral rod 5 to move spirally, so that the scrubbing part 6 scrapes the inner side wall of the air outlet sub-pipe 11, and the scrubbing part 6 absorbs the water stains on the inner side wall of the air outlet sub-pipe 11;

[0098] controlling the driving assembly 7, to drive the flexible spiral rod 5 to move, and the steel wire and the foam to extend out of the air outlet sub-pipe 11;

[0099] controlling the first telescopic part 31, so that the first movable part moves linearly in the first direction, to drive the cleaning end 51 of the flexible spiral rod 5 to extend out of the air outlet sub-pipe 11;

[0100] controlling the second telescopic part 32, so that the second movable part moves linearly in the second direction, to drive the cleaning end 51 of the flexible spiral rod 5 to extend into the installation box 3;

[0101] draining the water stains in the scrubbing part 6 through the drain pipe 36;

[0102] controlling the fan 12 to continue to run, to dry the inner side wall of the air outlet sub-pipe 11.

[0103] Before cleaning, the cleaning agent is injected into the water inlet pipe 21 to ensure that the first nozzle 2 sprays the cleaning agent droplets; after the fan 12 in the main air duct 1 is turned on, the cleaning agent can enter the different air outlet pipes 11 with the wind and adhere to the inner wall of the air outlet pipe 11, thereby achieving the disinfection of the inner wall of the air outlet pipe 11 and softening the attachments on the inner wall of the air outlet pipe 11; by controlling the first telescopic member 31 and the second telescopic member 3 2, it is possible to make the cleaning end 51 extend out of the installation box 3, align with the air outlet pipe 11 and insert it into the air outlet pipe 11; finally, the driving component 7 is controlled to make the flexible spiral rod 5 move in a spiral motion, and the flexible spiral rod 5 moves along the air outlet pipe 11 and extends into the air outlet end of the air outlet pipe 11; when the scrubbing part 6 rotates with the air outlet pipe 11, it is possible to scrape off the dirt on the inner wall of the air outlet pipe 11 and stir it into water pollution, and wipe and absorb the sewage. After completing the cleaning of the air outlet pipe 11, the driving component 7 is controlled to drive the flexible spiral rod 5 to extend out of the air outlet pipe 11, and then the first telescopic part 31 and the second telescopic part 32 are controlled to extend the cleaning end 51 into the installation box 3, and the water pollution falling on the scrubbing part 6 is collected and discharged through the installation box 3.

[0104] Controlling the air conditioner main unit to operate until the inner wall of the air duct is dried includes: switching the vehicle air conditioner to a warm air mode to speed up the drying of the air outlet sub-tube 11. The warm air mode can speed up the drying speed of the inner wall of the air duct.

[0105] In addition, when cleaning the air outlet sub-pipe 11, the vehicle air conditioner needs to be adjusted to the internal circulation mode to ensure the warm air mode of the vehicle air conditioner.

[0106] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by utilizing the contents of the present invention's description and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A cleaning device for cleaning a vehicle air conditioning duct, wherein the vehicle air conditioning duct comprises a main air duct and a plurality of air outlet sub-ducts connected to the main air duct, characterized in that: The cleaning device comprises: a first nozzle, configured to be disposed in the main air duct, wherein the first nozzle is connected to a water inlet pipe; An installation box is used to connect to the main air duct, and a drainage pipe is connected to the bottom of the installation box; A limiting sleeve, movably installed in the installation box; A flexible spiral rod having a driving end and a cleaning end opposite to each other, the cleaning end being provided with a brushing portion having a steel wire and foam, the flexible spiral rod being partially positioned and passed through the limiting sleeve; and A driving assembly, drivingly connected to the driving end, for driving the driving end to spirally move; The installation box is provided with a first telescopic member and a second telescopic member, the first telescopic member includes a first fixed portion and a first movable portion that moves linearly along a first direction relative to the first fixed portion, the second telescopic member includes a second fixed portion and a second movable portion that moves linearly along a second direction relative to the second fixed portion, the second fixed portion is provided on the first movable portion, and the limiting sleeve is connected to the second movable portion; The first direction and the second direction are two directions perpendicular to each other.

2. The cleaning device according to claim 1, wherein The drive assembly includes: A mounting plate, arranged on the mounting box; at least two driving wheels rotatably mounted on the mounting plate, the flexible screw rod being located between the at least two driving wheels and abutting against the driving wheels; and The transmission member is used to drive at least two of the driving wheels to rotate in the same direction.

3. The cleaning device according to claim 2, wherein: A spiral groove is provided on the outer side surface of each driving wheel, and the spiral groove is adapted to the flexible spiral rod.

4. The cleaning device according to claim 2, wherein: A spiral hole is formed on the mounting plate, and the flexible spiral rod is spirally inserted into the spiral hole.

5. The cleaning device according to claim 2, wherein: The outer side surface of each driving wheel is provided with a first external tooth shape, the transmission member includes a transmission ring gear, the inner side wall of the transmission ring gear is provided with an internal tooth shape, the axis of the transmission member is parallel to the axis of the driving wheel, at least part of the multiple driving wheels is located in the transmission member, and the circumferential sides of the driving wheels are all meshed with the inner circumferential sides of the transmission member.

6. The cleaning device according to claim 5, characterized in that The outer side wall of the transmission gear ring is provided with a second external tooth shape, and the drive assembly further comprises: a driving motor, disposed on the mounting plate; and A driving wheel is connected to the output shaft of the driving motor. A third external tooth shape is provided on the circumference of the driving wheel, and the third external tooth shape is meshed with the second external tooth shape.

7. The cleaning device according to claim 1, wherein: An extrusion assembly is provided in the installation box, and the extrusion assembly is used to squeeze out water and dirt in the scrubbing part.

8. A cleaning method based on the cleaning device according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: injecting a cleaning agent into the water inlet pipe; Control the fan in the main air duct to start, so that the fan can supply air to all the air outlet sub-ducts; Controlling the pump body on the liquid inlet flow path provided with the first nozzle to open, so that the first nozzle sprays the mist cleaning agent in the main air duct, so that the mist cleaning agent adheres to the inner wall of the air outlet sub-duct along with the air discharged by the fan; Controlling the second telescopic member so that the second movable portion moves linearly along a second direction, thereby driving the cleaning end of the flexible spiral rod to extend out of the mounting box and align with an air outlet sub-pipe; Controlling the first telescopic member so that the first movable portion moves linearly along a first direction, thereby driving the cleaning end of the flexible spiral rod to extend into the air outlet sub-duct; Controlling the driving assembly to drive the cleaning end of the flexible spiral rod to move in a spiral motion, so that the scrubbing portion scrapes the inner wall of the air outlet pipe and absorbs water stains on the inner wall of the air outlet pipe; Controlling the driving assembly to drive the flexible spiral rod to move, and causing the steel wire and the foam to extend out of the air outlet pipe; Controlling the first telescopic member so that the first movable portion moves linearly along a first direction to drive the cleaning end of the flexible spiral rod to extend out of the air outlet pipe; controlling the second telescopic member so that the second movable portion moves linearly along a second direction to drive the cleaning end of the flexible spiral rod into the installation box; Discharge the water and sewage in the scrubbing part through a drain pipe; Control the fan to continue running to dry the inner wall of the air outlet duct.

9. The cleaning method of the cleaning device according to claim 8, wherein: Control the fan to continue running to dry the inner wall of the air outlet duct, including: Switch the vehicle air conditioner to warm air mode to speed up the drying of the air outlet pipe.

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