Cleaning device and method

Abstract

The invention discloses a cleaning device and method, and relates to the technical field of air ducts for vehicles, and the cleaning device comprises a first nozzle arranged in a main air duct and connected with a water inlet pipe; the bottom of the mounting box is connected with a drainage pipe; the limiting sleeve is movably mounted in the mounting box; the flexible screw rod is provided with a driving end and a cleaning end which are opposite, the cleaning end is provided with a brushing part, and the flexible screw rod is partially arranged in the limiting sleeve in a limiting and penetrating mode; and the driving assembly is in driving connection with the driving end and is used for driving the driving end to spirally move. The first spray head sprays a cleaning agent, the main air pipe blows the cleaning agent into the air outlet sub-pipes, the cleaning agent is attached to the inner side walls of the air outlet sub-pipes, and the limiting sleeve drives the cleaning end to stretch into one air outlet sub-pipe; and the driving assembly drives the flexible spiral rod to move spirally, dirt of the scrubbing part is scraped and absorbed, and cleaning of the inner side wall of the air outlet sub-pipe is completed conveniently on the whole.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle air ducts, and in particular to a cleaning device and method. Background Art

[0002] After a car has been used for a certain period of time, dust, bacteria and food residues are likely to accumulate in the air-conditioning duct of the car. In humid weather, such as the rainy season, a large amount of mold will accumulate in the air-conditioning duct. The mold will multiply in the air-conditioning duct and release an unpleasant odor, causing the odor to accumulate in the air-conditioning duct. After starting the car air-conditioning and blowing air into the car, the odor in the air-conditioning duct will enter the car, thereby blowing the odorous air into the car. When cleaning the air-conditioning duct, it is often necessary to disassemble the car's IP panel, making it inconvenient to clean the inside of the air-conditioning duct. Summary of the invention

[0003] The main purpose of the present invention is to provide a cleaning device and method, aiming to improve the problem of inconvenience in cleaning the inside of an air outlet duct of an air conditioner.

[0004] To achieve the above-mentioned purpose, the cleaning device proposed in the present invention 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 and a plurality of air outlet sub-ducts connected to the main air duct, and the cleaning device includes:

[0005] A first nozzle, used to be arranged in the main air duct, wherein the first nozzle is connected to a water inlet pipe;

[0006] 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;

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

[0008] A flexible spiral rod has a driving end and a cleaning end opposite to each other, the cleaning end is provided with a brushing portion, and a portion of the flexible spiral rod is limitedly inserted into the limiting sleeve; and,

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

[0010] In one embodiment, a first telescopic member and a second telescopic member are arranged in the installation box, 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 arranged on the first movable portion, and the limiting sleeve is connected to the second movable portion;

[0011] The first direction and the second direction are two directions 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, rotatably disposed on the mounting plate, the flexible screw rod being located between the at least two driving wheels, and the flexible screw rod being against the driving wheels; and,

[0015] The transmission member is used to drive at least two of the transmission 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 matched with 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 gear ring, the inner side wall of the transmission gear ring is provided with an internal tooth shape, the axis of the transmission ring is parallel to the axis of the driving wheel, at least part of the plurality of driving wheels is located in the transmission ring, and the circumferential sides of the driving wheels are all meshed with the inner circumferential sides of the transmission ring.

[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 arranged on the circumference of the driving wheel. The third external tooth shape is meshed with the second external tooth shape.

[0022] In one embodiment, a squeezing assembly is disposed in the installation box, and the squeezing assembly is used to squeeze out water stains 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 supplies 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-tube 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, so as to drive 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 to drive a portion of the cleaning end of the flexible spiral rod to extend into the air outlet sub-pipe;

[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 part scrapes the inner wall of the air outlet pipe and absorbs the 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 bristles and the foam to extend out of the air outlet tube;

[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 to extend into the installation box;

[0033] Discharge the water and dirt 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 the warm air mode to speed up the drying of the air outlet duct.

[0037] The technical solution of the present invention adopts a first nozzle and a water inlet pipe to spray a droplet-shaped cleaning agent in the main air duct. When the main air duct supplies air to the air outlet sub-tube, the droplet-shaped cleaning agent can be blown into the air outlet sub-tube, and the cleaning agent can adhere to the inner wall of the air outlet sub-tube and wet the inner wall of the air outlet sub-tube, thereby softening the dirt containing dust, bacteria and food residues; the cleaning agent can disinfect the inner wall of the air outlet sub-tube; 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-tube 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-tube along the extension direction of the air outlet sub-tube, and the flexible spiral rod drives the scrubbing part to rotate, which can scrape the dirt attached to the inner wall of the air outlet sub-tube to form water stains. Further, the scrubbing part absorbs the water stains on the inner wall of the air outlet sub-tube, thereby completing the cleaning of the inner wall of the air outlet sub-tube. 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 makes it more convenient to clean 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 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 the middle A;

[0041] Figure 3 A schematic diagram of the planar structure of a 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] Description of Figure Numbers:

[0046] 1. Main air duct; 11. Air outlet pipe; 12. Fan; 2. First nozzle; 21. Water inlet pipe; 3. Installation box; 31. First telescopic part; 32. Second telescopic part; 33. Inlet and outlet; 34. Second nozzle; 35. Perforation; 36. Drain pipe; 4. Limit sleeve; 5. Flexible spiral rod; 51. Cleaning end; 6. Brushing part; 61. Steel wire; 62. Foam; 7. Drive assembly; 71. Installation plate; 711. Guide hole; 712. Spiral hole; 713. Support rod; 72. Drive wheel; 73. Transmission part; 74. Drive motor; 75. Active wheel; 8. Storage box.

[0047] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

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

[0050] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[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. 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, a large amount of mold will accumulate in the air duct of the air conditioner. The mold will multiply in the air duct and release an unpleasant odor, which will accumulate in the air outlet sub-duct. After starting the car air conditioner and blowing air into the car, the odor in the air outlet sub-duct of the air conditioner will enter the car. Before cleaning the air outlet sub-duct, the IP panel of the car is often required to be disassembled, making it inconvenient to clean the air outlet sub-duct.

[0053] The 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, and the cleaning device includes:

[0055] A first nozzle 2, which 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] An installation box 3, used to be connected to the main air duct 1, and a drainage pipe 36 is connected to the bottom of the installation box 3;

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

[0058] The 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 part 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 droplet form in the main air duct 1. When the main air duct 1 supplies air to the air outlet sub-tube 11, the cleaning agent in droplet form can be blown into the air outlet sub-tube 11. The cleaning agent can adhere to the inner wall of the air outlet sub-tube 11 and wet the inner wall of the air outlet sub-tube 11, thereby softening dirt containing dust, bacteria and food residues; the cleaning agent can disinfect the inner wall of the air outlet sub-tube 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 the air outlet pipe 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 extend 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, so as to 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, thereby 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 spiral 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 spiral rod 5 to extend into the installation box 3. The water stains 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 flexible spiral rod 5 is easily mismatched with the curved section in the air outlet pipe 11 after bending, 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 member 31 and a second telescopic member 32. The first telescopic member 31 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 32 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 at the first movable portion, and the limiting sleeve 4 is connected to the second movable portion.

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

[0065] An inlet and outlet 33 connected to the main air duct 1 is provided on the side wall of the installation box 3, and an opening consistent with the inlet and outlet 33 is provided on the side wall of the main air duct 1, so that the installation box 3 is connected to the main air duct 1. The inlet and outlet 33 are aligned with the activity interval of the first movable part, and the second movable part is arranged opposite to the inlet and outlet 33, so that the inlet and outlet 33 is provided for the second movable part to pass through. The air inlets of the plurality of air outlet sub-ducts 11 are arranged in sequence along the activity direction of the second movable part, and the air inlet of the air outlet sub-duct 11 is located on the activity surface of the second movable part.

[0066] The second telescopic member 32 is controlled to drive the second movable part to move, and 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 clean end 51 of the flexible spiral rod 5 moves with the limiting sleeve 4. By controlling the movement of the second movable part, the clean end 51 of the flexible spiral rod 5 can be aligned with the air inlet of any of the air outlet sub-tubes 11. The first telescopic member 31 is controlled to drive the first movable part to move, and the first movable part can drive the second movable part, the limiting sleeve 4 and the clean end 51 of the flexible spiral rod 5 to approach the air outlet sub-tube 11, and make the clean end 51 of the flexible spiral rod 5 partially inserted into one of the air outlet sub-tubes 11. By controlling the second telescopic member 32 to drive the second movable part to move, the clean end 51 of the flexible spiral rod 5 can be aligned with different air outlet sub-tubes 11 in sequence, and by cooperating with the first telescopic member 31, the clean end 51 can be inserted into different air outlet sub-tubes 11 in sequence.

[0067] The first telescopic member 31 and the second telescopic member 32 may both be cylinders or electric push rods.

[0068] See also Figure 2 and Figure 3 , the driving assembly 7 comprises:

[0069] A mounting plate 71, disposed on the mounting box 3;

[0070] At least two driving wheels 72 are rotatably disposed 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 transmission 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, a spiral groove is formed on the outer side of each driving wheel 72, and the spiral groove is adapted to the flexible spiral rod 5. When the driving wheel 72 rotates, the flexible spiral rod 5 can move along the length of the flexible spiral rod 5 through the cooperation between the spiral groove and the flexible spiral rod 5; by controlling the rotation direction of the driving wheel 72, the flexible spiral rod 5 can reciprocate along its length; and the spiral movement of the flexible spiral rod 5 is realized.

[0074] The mounting plate 71 is penetrated with a guide hole 711 . The diameter of the guide hole 711 may 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 realizing the 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 reciprocating movement of the flexible spiral rod 5 along its length can be realized, thereby realizing the spiral movement of the flexible spiral rod 5, which is convenient for the flexible spiral rod 5 to extend into or out of the air outlet sub-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 abuts 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 the inner side.

[0077] The outer side surface of each driving wheel 72 is provided with a first external tooth shape, the transmission member 73 includes a transmission gear ring, the inner side wall of the transmission gear ring is provided with an internal tooth shape, the axis of the transmission ring is parallel to the axis of the driving wheel 72, at least part of the multiple driving wheels 72 is located in the transmission ring, and the circumference of the driving wheel 72 is meshed with the inner circumference of the transmission ring. When the transmission gear rotates, the multiple driving wheels 72 can be driven to rotate synchronously.

[0078] Each of the driving wheels 72 includes a gear section and a driving section which are 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 provided 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, and 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 arranged 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 driving assembly 7 further comprises:

[0082] A driving motor 74 is disposed 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 shape is provided on the circumference of the driving wheel 75 . The third external tooth shape is meshed with the second external tooth shape.

[0084] When the driving motor 74 is started, the driving wheel 75 can be driven to drive the transmission gear ring to rotate forward or reversely, 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, which is used to squeeze out the water and dirt in the scrubbing part 6. After the scrubbing part 6 has finished cleaning one of the air outlet pipes 11 and the scrubbing part 6 is stored back in the installation box 3, the squeezing assembly can squeeze out the water and dirt in the scrubbing part 6.

[0086] The extrusion assembly includes two clamping plates arranged opposite to each other, and a third telescopic member is arranged in the installation box 3 corresponding to the two clamping plates respectively. The third telescopic member can be a cylinder or an electric push rod, and the output shaft of the third telescopic member is connected to the clamping plates, and the shell of the third telescopic member is fixedly installed on the inner wall of the installation box 3. By controlling the first telescopic member 31 and the second telescopic member 32, the scrubbing part 6 on the cleaning end 51 can be moved between the two clamping plates, and by controlling the synchronous extension and contraction of the two third telescopic members, the two clamping plates can be moved closer to or farther from each other. When the two clamping plates are close to each other, the two clamping plates can squeeze the scrubbing part 6, thereby squeezing out the water in the scrubbing part 6.

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

[0088] A second nozzle 34 is also provided in the installation box 3, and the second nozzle 34 is connected to the water inlet pipe 21. Through the second nozzle 34, a cleaning agent water flow can be sprayed toward the scrubbing part 6; the second nozzle 34 cooperates with the two clamps to effectively squeeze out the water stains in the scrubbing part 6 to clean the scrubbing part.

[0089] The brushing part 6 includes a steel wire 61 and a foam 62. The steel wire 61 has a good scraping effect and can effectively scrape the inner wall of the air outlet pipe 11. The foam has good water absorption. After the steel wire 61 scrapes the inner wall of the air outlet pipe 11, the dirt on the inner wall of the air outlet pipe 11 mixes with the cleaning agent to form water stains. The foam can wipe off and absorb the water stains, thereby reducing the residual dirt on the inner wall of the air outlet pipe 11.

[0090] The mounting plate 71 is located outside the mounting box 3 , and a through hole 35 for the flexible spiral rod 5 to pass through is opened on the side wall of the mounting box 3 . A storage box 8 is fixedly connected to the side of the mounting plate 71 away from the mounting box 3 , and the storage box 8 is used to store the flexible spiral rod 5 .

[0091] The present invention further provides a cleaning method of a cleaning device, wherein the air outlet sub-pipe 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] Control the fan 12 in the main air duct 1 to turn on, so that the fan 12 supplies air to all the air outlet sub-ducts 11;

[0094] Controlling the pump body on the liquid inlet flow path provided with the first nozzle 2 to open, so that the first nozzle 2 sprays a mist cleaning agent in the main air duct 1, so that the mist cleaning agent adheres to the inner wall of the air outlet sub-tube 11 along with the air discharged by the fan 12;

[0095] Control the second telescopic member 32 so that the second movable portion moves linearly along the second direction, so as to drive the cleaning end 51 of the flexible spiral rod 5 to extend out of the installation box 3 and align with an air outlet sub-pipe 11;

[0096] Controlling the first telescopic member 31 so that the first movable portion moves linearly along a first direction, so as to drive a portion of the cleaning end 51 of the flexible spiral rod 5 to extend into the air outlet sub-pipe 11;

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

[0098] Controlling the driving assembly 7 to drive the flexible spiral rod 5 to move, and making the bristles and the foam extend out of the air outlet tube 11;

[0099] Controlling the first telescopic member 31 so that the first movable portion moves linearly along a first direction, so as to drive the cleaning end 51 of the flexible spiral rod 5 to extend out of the air outlet pipe 11;

[0100] Controlling the second telescopic member 32 so that the second movable portion moves linearly along a second direction, so as to drive the cleaning end 51 of the flexible spiral rod 5 to extend into the installation box 3;

[0101] The water and dirt in the scrubbing part 6 are discharged through the drain pipe 36;

[0102] The fan 12 is controlled to continue to run to dry the inner wall of the air outlet tube 11 .

[0103] Injecting cleaning agent into the water inlet pipe 21 before cleaning can ensure that the first nozzle 2 sprays 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 sub-pipes 11 with the wind and adhere to the inner wall of the air outlet sub-pipe 11, thereby achieving disinfection of the inner wall of the air outlet sub-pipe 11 and softening the attachments on the inner wall of the air outlet sub-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 the air outlet pipe 11 is cleaned, 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 dropped on the scrubbing part 6 is collected and discharged through the installation box 3.

[0104] Controlling the operation of the air conditioner host 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 only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are 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, used to be arranged 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 has a driving end and a cleaning end opposite to each other, the cleaning end is provided with a brushing portion, and a portion of the flexible spiral rod is limitedly inserted into the limiting sleeve; and, A driving assembly is drivingly connected to the driving end to drive the driving end to spirally move.

2. The cleaning device according to claim 1, characterized in that: 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 at 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.

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

4. The cleaning device according to claim 3, characterized in that: The outer side surface of each driving wheel is provided with a spiral groove, and the spiral groove is matched with the flexible spiral rod.

5. The cleaning device according to claim 3, characterized in that: A spiral hole is formed through the mounting plate, and the flexible spiral rod is spirally inserted into the spiral hole.

6. The cleaning device according to claim 3, characterized in that: The outer side surface of each driving wheel is provided with a first external tooth shape, the transmission member includes a transmission gear ring, the inner side wall of the transmission gear ring is provided with an internal tooth shape, the axis of the transmission ring is parallel to the axis of the driving wheel, at least part of the multiple driving wheels is located in the transmission ring, and the circumferential sides of the driving wheels are all meshed with the inner circumferential sides of the transmission ring.

7. The cleaning device according to claim 6, 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 arranged on the circumference of the driving wheel. The third external tooth shape is meshed with the second external tooth shape.

8. The cleaning device according to claim 1, characterized in that: An extrusion assembly is arranged in the installation box, and the extrusion assembly is used to squeeze out water and dirt in the scrubbing part.

9. A cleaning method based on the cleaning device according to any one of claims 1 to 8, 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 supplies 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-tube 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, so as to drive 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 to drive a portion of the cleaning end of the flexible spiral rod to extend into the air outlet sub-pipe; Controlling the driving assembly to drive the cleaning end of the flexible spiral rod to move in a spiral motion, so that the scrubbing part scrapes the inner wall of the air outlet pipe and absorbs the 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 bristles and the foam to extend out of the air outlet tube; 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 to extend into the installation box; Discharge the water and dirt in the scrubbing part through a drain pipe; Control the fan to continue running to dry the inner wall of the air outlet duct.

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

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