A central air conditioning system cleaning device

Abstract

The present invention relates to the technical field of cleaning devices, and specifically to a cleaning device for a central air-conditioning system. A cleaning device for a central air-conditioning system is used to clean the air outlet of an air conditioner, and comprises a support tube, a deformation mechanism, a cleaning mechanism, a self-cleaning mechanism and a ventilation mechanism. The support tube comprises two semi-arc plates, and the two ends of the support tube are respectively a first end and a second end. The cleaning mechanism comprises two cleaning cloths, and the deformation mechanism comprises a telescopic cylinder. A detergent is arranged in the self-cleaning mechanism for cleaning the cleaning cloths. The shape of the support tube is changed by changing the length of the telescopic cylinder. The cleaning cloth circulates along the direction from the first end to the second end and then to the first end of the support tube, thereby cleaning the air outlet. The present invention provides a cleaning device for a central air-conditioning system to solve the problem that the existing cleaning device does not clean the air outlet of the air conditioner thoroughly.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning devices, and in particular to a cleaning device for a central air-conditioning system. Background Art

[0002] A cleaning device is a mechanical device used to remove stains and contaminants from the surface of an object and is widely used in many industries. The structure of a cleaning device usually includes four parts: a feeding device, a washing device, a conveying device, and a control device. The feeding device is responsible for introducing the objects to be cleaned into the device. Common components include a material loading bucket, a screw conveyor, or a belt conveyor.

[0003] The central air conditioning system is a device that centrally handles the air conditioning needs of an entire building or region. It transmits cold (heat) through air ducts, water systems or refrigerants to achieve precise control of the indoor environment. The air duct is often equipped with a baffle with multiple through holes, which form a mesh air outlet or a strip air outlet. The baffle can evenly distribute air to various parts of the equipment through its porous structure, and the closely arranged through holes can effectively prevent dust and foreign matter from entering the equipment, keeping the equipment clean. After the central air conditioning system has been working for a long time, a lot of dust will adhere to the air outlet. At this time, a cleaning device needs to be used to clean the baffle.

[0004] For example, the Chinese invention patent with the announcement number CN114850087B provides a method and device for cleaning a central air conditioning system. The dust on the return air cover blades is cleaned and brushed off by a brush, and the dust is sucked away by a fan during the brushing process, and then the blades are scrubbed with a sponge. However, when using a brush for dry brushing, the cleaning is not thorough and the surface of the blades is easily damaged. The fan is not easy to suck up large dust, which will cause the large dust to scatter everywhere. The sponge does not have a self-cleaning function, which will cause the sponge to be unable to maintain efficient cleaning capabilities continuously, and this solution can only be applied to strip-shaped air outlets and cannot adapt to grid-shaped air outlets. Summary of the invention

[0005] The invention provides a central air conditioning system cleaning device to solve the problem that the existing cleaning device cannot clean the air outlet of the air conditioner thoroughly.

[0006] A central air conditioning system cleaning device of the present invention adopts the following technical scheme: A central air conditioning system cleaning device, used for cleaning the air outlet of the air conditioner, comprises a limit box, a support tube, a deformation mechanism, a cleaning mechanism, a self-cleaning mechanism and a ventilation mechanism. The support tube is rotatably arranged on the limit box, and the support tube can rotate around its own axis, and the two ends of the support tube are respectively a first end and a second end. The support tube comprises two semi-arc plates, and the two semi-arc plates are distributed along the circumference of the support tube, and the concave surfaces of the two semi-arc plates are arranged oppositely, and the semi-arc plates are arranged along the axial direction of the support tube, and the semi-arc plates can be deformed, and each semi-arc plate is provided with a plurality of air outlet holes. The deformation mechanism comprises a telescopic cylinder, and the telescopic cylinder is arranged in the support tube, and the telescopic cylinder is arranged along the radial direction of the support tube, and the telescopic cylinder is extended to change the shape of the cross section of the support tube.

[0007] The cleaning mechanism includes two cleaning cloths and two driving assemblies. The cleaning cloths are annular and arranged along the axial direction of the support tube. Each cleaning cloth is sleeved on the inner side wall and the outer side wall of a semi-arc plate. The cleaning cloths circulate and rotate in a direction from the first end to the second end and then to the first end of the support tube. Each driving assembly is used to drive a cleaning cloth to rotate. Detergent is arranged in the self-cleaning mechanism for cleaning the rotating cleaning cloth. The ventilation mechanism is used to introduce gas from the air outlet into the space between the cleaning cloth and the semi-arc plate.

[0008] Furthermore, two drive boxes are fixedly arranged at the second end of the support tube. Along the circumference of the support tube, hard rubber strips are fixedly arranged on both sides of each semi-arc plate, the hard rubber strips are in the shape of an annular belt, and are arranged along the axial direction of the support tube. Multiple tooth grooves are opened on the inner side wall and the outer side wall of each hard rubber strip, and the multiple tooth grooves are distributed along the axial direction of the support tube.

[0009] One of the driving components includes two first driving units, the two driving units are respectively arranged on two driving boxes, each first driving unit includes a first large gear, each first large gear is arranged on a driving box, and the first large gear can rotate around its own axis. The two first large gears are respectively meshed with the teeth and grooves on two hard rubber strips on a semi-arc plate. The other driving component includes two second driving units, the two second driving units are respectively arranged on two driving boxes, each second driving unit includes a second large gear, each second large gear is arranged on a driving box, the second large gear can rotate around its own axis, and the two second large gears are respectively meshed with the teeth and grooves on two hard rubber strips on another semi-arc plate.

[0010] Furthermore, each first drive unit further includes a first motor and a first driven bevel gear. Each first motor is fixedly arranged on a drive box, and a first driving bevel gear is fixedly arranged on the output shaft of each first motor. Each drive box is provided with a first rotating shaft, and the first rotating shaft can rotate around its own axis, and the first driven bevel gear and the first large gear are respectively fixedly arranged at both ends of the first rotating shaft. The first driven bevel gear is meshed with the first driving bevel gear.

[0011] Each second drive unit further includes a second motor and a second driven bevel gear. Each second motor is fixedly mounted on a drive box, and a second driving bevel gear is fixedly mounted on the output shaft of each second motor. Each drive box is provided with a second rotating shaft, which can rotate around its own axis, and a second driven bevel gear and a second large gear are respectively fixedly mounted on both ends of the second rotating shaft, and the second driven bevel gear and the second driving bevel gear are meshed.

[0012] Furthermore, the support tube also includes two connecting rods, which are arranged along the axial direction of the support tube, and the two connecting rods are distributed along the circumference of the support tube. The two connecting rods and the two semi-arc plates are arranged alternately, and the connecting rods and the semi-arc plates are fixedly connected. Along the circumference of the support tube, T-slots are respectively provided on both sides of the connecting rods, and the T-slots are arranged along the axial direction of the support tube. Along the circumference of the support tube, T-blocks are respectively fixedly provided on both sides of each semi-arc plate, and the T-blocks are arranged along the axial direction of the support tube, and each T-block is slidably arranged in a T-slot. The telescopic cylinder connects the two connecting rods.

[0013] Furthermore, the central air conditioning system cleaning device also includes a driving mechanism, which includes an adjusting motor and an inner cylinder, the inner cylinder is arranged in the supporting cylinder, the inner cylinder and the supporting cylinder are arranged coaxially, and a first adjusting gear is fixedly arranged at one end of the inner cylinder. A plurality of air pipes are fixedly arranged on the inner cylinder, the plurality of air pipes are distributed along the axial direction of the inner cylinder, each air pipe is arranged along the radial direction of the inner cylinder, and one end of the air pipe is fixedly connected to the connecting rod. The adjusting motor is fixedly arranged in the limit box, and a second adjusting gear is fixedly arranged on the output shaft of the adjusting motor, and the second adjusting gear is meshed with the first adjusting gear.

[0014] Furthermore, each semi-arc plate is provided with a plurality of first air passages, each of which is connected to an air outlet. Each connecting rod is provided with a plurality of second air passages, each of which is connected to a second air passage, and each of which is connected to an air pipe. The ventilation mechanism includes an air pump, which is fixedly arranged in the limit box and is connected to the inner cylinder.

[0015] Furthermore, the cleaning cloth is detachable, the side of the cleaning cloth in contact with the semi-arc plate is the inner side, the inner side of the cleaning cloth is made of airtight material, and the outer side of the cleaning cloth is made of textile material.

[0016] Furthermore, the second end of the support tube is rotatably disposed in the limit box, and the self-cleaning mechanism includes a self-cleaning box and a circulation box. The self-cleaning box is fixedly disposed on one side of the limit box, and the self-cleaning box and the limit box are sequentially distributed along the direction from the first end to the second end of the support tube. The support tube is disposed in the self-cleaning box, and there is a cavity between the self-cleaning box and the outer side of the cleaning cloth, and there is flowing detergent inside the cavity. The circulation box and the self-cleaning box are fixedly connected, and a circulation pipe is fixedly disposed on the self-cleaning box, and the circulation pipe is connected to the circulation box. A filtering circulation mechanism is provided in the limit box to promote the circulation of detergent between the self-cleaning box and the circulation box.

[0017] Furthermore, the central air conditioning system cleaning device also includes a rear shell, which is fixedly arranged on one side of the limit box, and the limit box and the rear shell are distributed in sequence along the direction from the first end to the second end of the support tube, and a plurality of air holes are opened on the rear shell, and a handle is fixedly arranged on the rear shell.

[0018] Furthermore, an opening and closing button and an adjusting button are arranged on the rear shell. The opening and closing button controls the opening and closing of the air pump, and the adjusting button controls the extension and retraction of the telescopic cylinder.

[0019] The beneficial effects of the present invention are as follows: a central air conditioning system cleaning device of the present invention, through the support cylinder, deformation mechanism, cleaning mechanism, self-cleaning mechanism and ventilation mechanism, when in use, first decide whether to adjust the shape of the support cylinder according to the shape of the air outlet. When the air outlet is in a grid shape, keep the cross section of the support cylinder circular. Insert the first end of each support cylinder into a grid. Through the ventilation mechanism, gas is introduced into the space between the cleaning cloth and the semi-arc plate, so that the cleaning cloth expands and fits the side wall of the grid-shaped air outlet, so that the cleaning cloth can cover all of each grid. Then, the cleaning cloth is rotated by the driving component, and the cleaning cloth circulates along the direction from the first end to the second end and then to the first end of the support cylinder, so as to clean the air outlet. And the support cylinder is rotated around its own axis, and the support cylinder drives the cleaning cloth to rotate synchronously, which is rotary wiping at this time, and its cleaning effect is better. After that, the cleaning cloth is cleaned by the self-cleaning mechanism, so that the cleaning cloth maintains efficient cleaning ability.

[0020] When the air outlet is strip-shaped, the shape of the support tube is changed by changing the length of the telescopic cylinder, so that the cross section of the support tube becomes flat. The cleaning cloth is circulated along the direction from the first end to the second end and then to the first end of the support tube. The support tube is moved so that the support tube moves along the extension direction of the strip-shaped air outlet, and the surface of the cleaning cloth wipes the side wall of the air outlet, and moves and wipes to keep it clean.

[0021] The central air conditioning system cleaning device can clean both grid-shaped and strip-shaped air outlets, and has a wide range of applications. The cleaning cloth is relatively soft and will not cause damage to the air outlet. The surface of the cleaning cloth is fully absorbed with detergent, so that dust is not easily scattered when the cleaning cloth is used for cleaning, and relatively stubborn stains can be cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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 these drawings without paying creative labor.

[0023] Figure 1 A schematic diagram of the structure of a central air conditioning system cleaning device provided by an embodiment of the present invention;

[0024] Figure 2 An exploded diagram of a central air conditioning system cleaning device provided by an embodiment of the present invention;

[0025] Figure 3 A front view of a central air conditioning system cleaning device provided by an embodiment of the present invention;

[0026] Figure 4 for Figure 3 Sectional view at AA in the middle;

[0027] Figure 5 for Figure 3 Sectional view at the middle BB;

[0028] Figure 6 A partial structural schematic diagram of a central air conditioning system cleaning device provided by an embodiment of the present invention;

[0029] Figure 7 A side view of a central air conditioning system cleaning device provided by an embodiment of the present invention;

[0030] Figure 8 for Figure 7 Enlarged view of point C in the middle;

[0031] Fig. 9 A schematic structural diagram of a support cylinder of a central air conditioning system cleaning device provided by an embodiment of the present invention;

[0032] Fig.10 A schematic diagram of the structure of a cleaning cloth of a central air conditioning system cleaning device provided by an embodiment of the present invention;

[0033] Fig.11 for Fig.10 Enlarged view of point D in the middle.

[0034] In the figure: 100, support cylinder; 101, semi-arc plate; 102, connecting rod; 111, air outlet; 112, air pipe; 113, first airway; 120, inner cylinder; 121, first adjustment gear; 130, drive box; 140, telescopic cylinder; 151, T-slot; 210, cleaning cloth; 220, hard rubber strip; 221, T-block; 222, tooth groove; 310, first motor; 311, first driving bevel gear; 312 , the first driven bevel gear; 313, the first large gear; 320, the second motor; 321, the second driving bevel gear; 322, the second driven bevel gear; 323, the second large gear; 400, the self-cleaning box; 410, the circulation pipe; 500, the circulation box; 600, the limit box; 700, the back shell; 711, the opening and closing button; 712, the adjustment button; 720, the handle; 730, the air vent; 810, the adjustment motor; 830, the air pump. DETAILED DESCRIPTION

[0035] 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.

[0036] Reference Figures 1 to 11 As shown, a central air conditioning system cleaning device provided by an embodiment of the present invention is used to clean the air outlet of the air conditioner, and includes a limit box 600, a support tube 100, a deformation mechanism, a cleaning mechanism, a self-cleaning mechanism and a ventilation mechanism. The support tube 100 is rotatably arranged on the limit box 600, and the support tube 100 can rotate around its own axis. The two ends of the support tube 100 are respectively a first end and a second end. The support tube 100 includes two semi-arc plates 101, and the two semi-arc plates 101 are distributed along the circumference of the support tube 100. The concave surfaces of the two semi-arc plates 101 are arranged oppositely. The semi-arc plates 101 are arranged along the axial direction of the support tube 100. The semi-arc plates 101 can be deformed, and each semi-arc plate 101 is provided with a plurality of air outlet holes 111. The deformation mechanism includes a telescopic cylinder 140, which is arranged in the support tube 100, and the telescopic cylinder 140 is arranged along the radial direction of the support tube 100. The telescopic cylinder 140 is telescoped to change the shape of the cross section of the support tube 100.

[0037] The cleaning mechanism includes two cleaning cloths 210 and two driving assemblies. The cleaning cloths 210 are annular and arranged along the axial direction of the support tube 100. Each cleaning cloth 210 is sleeved on the inner side wall and the outer side wall of a semi-arc plate 101. The cleaning cloths 210 circulate around the direction from the first end to the second end and then to the first end of the support tube 100. Each driving assembly is used to drive a cleaning cloth 210 to rotate. Detergent is provided in the self-cleaning mechanism for cleaning the rotating cleaning cloth 210. The ventilation mechanism is used to pass gas from the air outlet 111 into the space between the cleaning cloth 210 and the semi-arc plate 101.

[0038] When in use, first decide whether to adjust the shape of the support tube 100 according to the shape of the air outlet. When the air outlet is in a grid shape, keep the cross section of the support tube 100 circular. Insert the first end of each support tube 100 into a grid. Through the ventilation mechanism, gas is introduced into the space between the cleaning cloth 210 and the semi-arc plate 101, so that the cleaning cloth 210 expands and fits the side wall of the grid-shaped air outlet. Then, the cleaning cloth 210 is rotated by the driving assembly, and the cleaning cloth 210 circulates along the direction from the first end to the second end and then to the first end of the support tube 100, thereby cleaning the air outlet. And the support tube 100 is rotated around its own axis, and the support tube 100 drives the cleaning cloth 210 to rotate synchronously, which is rotary wiping at this time, and its cleaning effect is better. After that, the cleaning cloth 210 is cleaned by the self-cleaning mechanism.

[0039] When the air outlet is strip-shaped, the cross section of the support tube 100 is flattened by changing the length of the telescopic cylinder 140 and then changing the shape of the support tube 100. The cleaning cloth 210 is cyclically rotated along the direction from the first end to the second end and then to the first end of the support tube 100. The support tube 100 is moved so that the support tube 100 moves along the extension direction of the strip-shaped air outlet. The surface of the cleaning cloth 210 wipes the side wall of the air outlet, and moves and wipes to keep it clean.

[0040] In this embodiment, two drive boxes 130 are fixedly arranged at the second end of the support tube 100, and the two drive boxes 130 are distributed along the circumference of the support tube 100. Along the circumference of the support tube 100, hard rubber strips 220 are fixedly arranged on both sides of each semi-arc plate 101, and the hard rubber strips 220 are in the shape of an annular belt, and the hard rubber strips 220 are arranged along the axial direction of the support tube 100. A plurality of tooth grooves 222 are provided on the inner side wall and the outer side wall of each hard rubber strip 220, and the plurality of tooth grooves 222 are distributed along the axial direction of the support tube 100.

[0041] One of the driving components includes two first driving units, which are respectively arranged on two driving boxes 130, each of which includes a first large gear 313, each of which is arranged on a driving box 130, and the first large gear 313 can rotate around its own axis. The two first large gears 313 are respectively meshed with the tooth grooves 222 on the two hard rubber strips 220 on a semi-arc plate 101.

[0042] Another driving assembly includes two second driving units, and the two second driving units are respectively arranged on two driving boxes 130. Each second driving unit includes a second large gear 323. Each second large gear 323 is arranged on a driving box 130. The second large gear 323 can rotate around its own axis. The two second large gears 323 are respectively engaged with the tooth grooves 222 on the two hard rubber strips 220 on the other semi-arc plate 101.

[0043] In this embodiment, each first driving unit further includes a first motor 310 and a first driven bevel gear 312. Each first motor 310 is fixedly disposed on a driving box 130, and a first driving bevel gear 311 is fixedly disposed on the output shaft of each first motor 310. Each driving box 130 is provided with a first rotating shaft, which can rotate around its own axis, and the first driven bevel gear 312 and the first large gear 313 are respectively fixedly disposed at both ends of the first rotating shaft. The first driven bevel gear 312 and the first driving bevel gear 311 are meshed.

[0044] Each second driving unit further includes a second motor 320 and a second driven bevel gear 322. Each second motor 320 is fixedly disposed on a driving box 130, and a second driving bevel gear 321 is fixedly disposed on the output shaft of each second motor 320. Each driving box 130 is provided with a second rotating shaft, which can rotate around its own axis, and a second driven bevel gear 322 and a second large gear 323 are respectively fixedly disposed at both ends of the second rotating shaft, and the second driven bevel gear 322 and the second driving bevel gear 321 are meshed.

[0045] The first motor 310 and the second motor 320 are started. The first motor 310 drives the first driven bevel gear 312 to rotate through the first driving bevel gear 311, and drives the first large gear 313 to rotate through the first rotating shaft, thereby driving the hard rubber strip 220 to rotate, and then driving one of the cleaning cloths 210 to rotate. The second motor 320 drives the second driven bevel gear 322 to rotate through the second driving bevel gear 321, and drives the second large gear 323 to rotate through the second rotating shaft, thereby driving the hard rubber strip 220 to rotate, and then driving the other cleaning cloth 210 to rotate. The hard rubber strip 220 and the cleaning cloth 210 move along the axial direction of the support tube 100 from the first end of the outer peripheral wall of the support tube 100 to the second end, and then from the second end of the inner peripheral wall of the support tube 100 to the first end, and rotate in a cycle in sequence.

[0046] In this embodiment, the support tube 100 further includes two connecting rods 102, which are arranged along the axial direction of the support tube 100, and the two connecting rods 102 are distributed along the circumference of the support tube 100. The two connecting rods 102 and the two semi-arc plates 101 are arranged alternately, and the connecting rods 102 and the semi-arc plates 101 are fixedly connected. Along the circumference of the support tube 100, T-shaped slots 151 are respectively opened on both sides of the connecting rods 102, and the T-shaped slots 151 are arranged along the axial direction of the support tube 100. Along the circumference of the support tube 100, T-shaped blocks 221 are respectively fixedly arranged on both sides of each semi-arc plate 101, and the T-shaped blocks 221 are arranged along the axial direction of the support tube 100, and each T-shaped block 221 is slidably arranged in a T-shaped slot 151. The telescopic cylinder 140 connects the two connecting rods 102. When the telescopic cylinder 140 is extended, the two connecting rods 102 are driven to move away from each other. At this time, the semi-arc plate 101 is deformed, thereby making the cross section of the support tube 100 flat.

[0047] In this embodiment, a central air conditioning system cleaning device further includes a driving mechanism, which includes an adjusting motor 810 and an inner cylinder 120. The inner cylinder 120 is arranged in the support cylinder 100, and the inner cylinder 120 and the support cylinder 100 are arranged coaxially. A first adjusting gear 121 is fixedly arranged at one end of the inner cylinder 120. A plurality of air pipes 112 are fixedly arranged on the inner cylinder 120, and the plurality of air pipes 112 are distributed along the axial direction of the inner cylinder 120. Each air pipe 112 is arranged along the radial direction of the inner cylinder 120, and one end of the air pipe 112 is fixedly connected to the connecting rod 102. The adjusting motor 810 is fixedly arranged in the limit box 600, and a second adjusting gear is fixedly arranged on the output shaft of the adjusting motor 810, and the second adjusting gear is meshed with the first adjusting gear 121. When the adjusting motor 810 is started, the adjusting motor 810 drives the first adjusting gear 121 to rotate through the second adjusting gear, thereby driving the inner cylinder 120 to rotate, and the inner cylinder 120 drives the support cylinder 100 to rotate synchronously through the air pipe 112.

[0048] In this embodiment, a plurality of first air passages 113 are provided on each semi-arc plate 101, and the plurality of first air passages 113 are distributed along the axial direction of the support tube 100, and each first air passage 113 is connected to an air outlet 111. A plurality of second air passages are provided on each connecting rod 102, and each first air passage 113 is connected to a second air passage, and each second air passage is connected to an air pipe 112. The ventilation mechanism includes an air pump 830, and the air pump 830 is fixedly disposed in the limit box 600, and the air pump 830 is connected to the inner tube 120.

[0049] Start the air pump 830, which ventilates the inner tube 120. The gas enters the multiple air pipes 112, and reaches each air outlet 111 through the second air channel and the first air channel 113, and enters the space between the cleaning cloth 210 and the semi-arc plate 101 from the air outlet 111.

[0050] In this embodiment, the cleaning cloth 210 is detachable, and the side of the cleaning cloth 210 that contacts the semi-arc plate 101 is the inner side, and the inner side of the cleaning cloth 210 is made of airtight material. The outer side of the cleaning cloth 210 is made of textile material. Therefore, after ventilation, the cleaning cloth 210 can expand and fit the side wall of the grid-shaped air outlet.

[0051] In this embodiment, the second end of the support cylinder 100 is rotatably disposed in the limit box 600, and the self-cleaning mechanism includes a self-cleaning box 400 and a circulation box 500. The self-cleaning box 400 is fixedly disposed on one side of the limit box 600, and the self-cleaning box 400 and the limit box 600 are sequentially distributed along the direction from the first end to the second end of the support cylinder 100. The support cylinder 100 is disposed in the self-cleaning box 400, and a cavity is formed between the self-cleaning box 400 and the outer side of the cleaning cloth 210. There is flowing detergent inside the cavity, which promotes the cleaning cloth 210 to be cleaned when it moves and discharges impurities adhering to the surface.

[0052] The circulation box 500 is fixedly connected to the self-cleaning box 400, and a circulation pipe 410 is fixedly arranged on the self-cleaning box 400, and the circulation pipe 410 is connected to the circulation box 500. A filter circulation mechanism is arranged in the limit box 600, and the filter circulation mechanism includes a circulation water pump to promote the detergent to circulate between the self-cleaning box 400 and the circulation box 500.

[0053] In this embodiment, a central air conditioning system cleaning device also includes a rear shell 700, which is fixedly arranged on one side of a limit box 600, and the limit box 600 and the rear shell 700 are distributed in sequence along the direction from the first end to the second end of the support tube 100, and a plurality of air holes 730 are opened on the rear shell 700, and a handle 720 is fixedly arranged on the rear shell 700.

[0054] In this embodiment, an on / off button 711 and an adjusting button 712 are provided on the rear housing 700. The on / off button 711 controls the on / off of the air pump 830, and the adjusting button 712 controls the extension and retraction of the extension cylinder 140.

[0055] Working process: When in use, first decide whether to adjust the shape of the support tube 100 according to the shape of the air outlet.

[0056] When the air outlet is in a grid shape, keep the cross section of the support tube 100 circular. Then insert the central air conditioning system cleaning device into the air outlet of the air conditioner that needs to be wiped, and insert the first end of each support tube 100 into a grid. Then turn on the opening and closing button 711, start the air pump 830, and the air pump 830 ventilates the inner tube 120. The gas enters the multiple air pipes 112, and passes through the second air duct and the first air duct 113 to each air outlet 111, and enters the space between the cleaning cloth 210 and the semi-arc plate 101 from the air outlet 111. Since the inner side of the cleaning cloth 210 is made of airtight material, after ventilation, the cleaning cloth 210 expands and fits the side wall of the grid-shaped air outlet.

[0057] Then, the first motor 310 and the second motor 320 are started. The first motor 310 drives the first driven bevel gear 312 to rotate through the first driving bevel gear 311, and drives the first large gear 313 to rotate through the first rotating shaft, thereby driving the hard rubber strip 220 to rotate, and then driving one of the cleaning cloths 210 to rotate. The second motor 320 drives the second driven bevel gear 322 to rotate through the second driving bevel gear 321, and drives the second large gear 323 to rotate through the second rotating shaft, thereby driving the hard rubber strip 220 to rotate, and then driving the other cleaning cloth 210 to rotate. The hard rubber strip 220 and the cleaning cloth 210 move from the first end of the outer peripheral wall of the support tube 100 to the second end, and then move from the second end of the inner peripheral wall of the support tube 100 to the first end, and rotate in a cycle in sequence.

[0058] At the same time, the filter circulation mechanism starts to operate, and the detergent circulates between the self-cleaning box 400 and the circulation box 500. After the cleaning cloth 210 wipes the air outlet, the part of the cleaning cloth 210 with stains is on the outer peripheral wall of the support tube 100, and moves from the first end to the second end of the support tube 100. When the part of the cleaning cloth 210 with stains moves to the cavity at the self-cleaning box 400, the detergent in the cavity cleans the part of the cleaning cloth 210 with stains. After the part of the cleaning cloth 210 with stains is cleaned, it continues to rotate and rotates to the inner peripheral wall of the support tube 100 for recycling.

[0059] At the same time, the adjusting motor 810 is started, and the adjusting motor 810 drives the first adjusting gear 121 to rotate through the second adjusting gear, thereby driving the inner cylinder 120 to rotate, and the inner cylinder 120 drives the supporting cylinder 100 to rotate synchronously through the air pipe 112. The surface of the cleaning cloth 210 wipes the side wall of the air outlet, and the wiping is rotating, so the cleaning effect is better.

[0060] When the air outlet is strip-shaped, the adjustment button 712 is adjusted to change the length of the telescopic cylinder 140, thereby changing the shape of the support tube 100, so that the cross section of the support tube 100 becomes flat. Then, the first end of the support tube 100 is inserted into the air outlet.

[0061] Start the air pump 830 to expand the cleaning cloth 210 and fit the side wall of the grid-shaped air outlet. Start the first motor 310 and the second motor 320 to make the two cleaning cloths 210 start to move along the axial direction of the support tube 100 from the first end of the outer peripheral wall of the support tube 100 to the second end, and then move from the second end of the inner peripheral wall of the support tube 100 to the first end, and circulate in sequence. At the same time, the filtering circulation mechanism starts to operate to clean the part of the cleaning cloth 210 that is stained. No longer start the adjustment motor 810, hold the handle 720, and move the support tube 100 along the extension direction of the strip-shaped air outlet. The surface of the cleaning cloth 210 wipes the side wall of the air outlet, and moves and wipes to keep it clean.

[0062] After wiping each position, the machine is stopped to change the position for cleaning. When there are stubborn impurities at the air outlet to be cleaned, on one cleaning cloth 210, first start one first motor 310, then start another first motor 310, so that the two sides of the same cleaning cloth 210 can maintain a certain misalignment, and then the two sides of the cleaning cloth 210 are rotated synchronously, and the misalignment can cause wrinkles on the surface of the cleaning cloth 210, and the wrinkles have a greater cleaning force than the flat towel surface.

[0063] When in use, multiple central air conditioning system cleaning devices can be used simultaneously to improve work efficiency.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A central air conditioning system cleaning device, used for cleaning the air outlet of the air conditioner, characterized in that: It includes a limit box, a support tube, a deformation mechanism, a cleaning mechanism, a self-cleaning mechanism and a ventilation mechanism; the support tube is rotatably arranged on the limit box, the support tube can rotate around its own axis, and the two ends of the support tube are respectively a first end and a second end; the support tube includes two semi-arc plates, the two semi-arc plates are distributed along the circumference of the support tube, the concave surfaces of the two semi-arc plates are arranged oppositely, the semi-arc plates are arranged along the axial direction of the support tube, the semi-arc plates can be deformed, and each semi-arc plate is provided with a plurality of air outlets; the deformation mechanism includes a telescopic cylinder, the telescopic cylinder is arranged in the support tube, the telescopic cylinder is arranged along the radial direction of the support tube, and the telescopic cylinder is extended and retracted to change the shape of the cross section of the support tube; The cleaning mechanism includes two cleaning cloths and two driving assemblies. The cleaning cloths are annular and arranged along the axial direction of the support tube. Each cleaning cloth is sleeved on the inner wall and the outer wall of a semi-arc plate. The cleaning cloths rotate cyclically around the first end of the support tube to the second end and then to the first end. Each driving assembly is used to drive a cleaning cloth to rotate. Detergent is arranged in the self-cleaning mechanism for cleaning the rotating cleaning cloth. The ventilation mechanism is used to introduce gas from the air outlet into the space between the cleaning cloth and the semi-arc plate. The cleaning cloth is detachable, and the side of the cleaning cloth in contact with the semi-arc plate is the inner side, and the inner side of the cleaning cloth is made of airtight material; the outer side of the cleaning cloth is made of textile material; the second end of the support cylinder is rotatably arranged in the limit box, and the self-cleaning mechanism includes a self-cleaning box and a circulation box, and the self-cleaning box is fixedly arranged on one side of the limit box, and the self-cleaning box and the limit box are distributed in sequence along the direction from the first end to the second end of the support cylinder; the support cylinder is arranged in the self-cleaning box, and a cavity is formed between the self-cleaning box and the outer side of the cleaning cloth, and there is flowing detergent inside the cavity; the circulation box and the self-cleaning box are fixedly connected, and a circulation pipe is fixedly arranged on the self-cleaning box, and the circulation pipe is connected to the circulation box; a filtering circulation mechanism is provided in the limit box to promote the circulation of detergent between the self-cleaning box and the circulation box.

2. A central air conditioning system cleaning device according to claim 1, characterized in that: Two drive boxes are fixedly arranged at the second end of the support tube; along the circumference of the support tube, hard rubber strips are fixedly arranged on both sides of each semi-arc plate, the hard rubber strips are in the shape of an annular belt, and the hard rubber strips are arranged along the axial direction of the support tube, and a plurality of tooth grooves are opened on the inner side wall and the outer side wall of each hard rubber strip, and the plurality of tooth grooves are distributed along the axial direction of the support tube; One of the driving components includes two first driving units, which are respectively arranged on two driving boxes, each first driving unit includes a first large gear, each first large gear is arranged on a driving box, and the first large gear can rotate around its own axis; the two first large gears are respectively meshed with teeth on two hard rubber strips on a semi-arc plate; the other driving component includes two second driving units, the two second driving units are respectively arranged on two driving boxes, each second driving unit includes a second large gear, each second large gear is arranged on a driving box, the second large gear can rotate around its own axis, and the two second large gears are respectively meshed with teeth on two hard rubber strips on another semi-arc plate.

3. A central air conditioning system cleaning device according to claim 2, characterized in that: Each first driving unit further includes a first motor and a first driven bevel gear; each first motor is fixedly arranged on a driving box, and a first driving bevel gear is fixedly arranged on the output shaft of each first motor; each driving box is provided with a first rotating shaft, and the first rotating shaft can rotate around its own axis, and the first driven bevel gear and the first large gear are respectively fixedly arranged at both ends of the first rotating shaft; the first driven bevel gear and the first driving bevel gear are meshed; Each second drive unit also includes a second motor and a second driven bevel gear; each second motor is fixedly arranged on a drive box, and a second driving bevel gear is fixedly arranged on the output shaft of each second motor; each drive box is provided with a second rotating shaft, and the second rotating shaft can rotate around its own axis, and the second driven bevel gear and the second large gear are respectively fixedly arranged at both ends of the second rotating shaft, and the second driven bevel gear and the second driving bevel gear are meshed.

4. A central air conditioning system cleaning device according to claim 2, characterized in that: The support tube also includes two connecting rods, which are arranged along the axial direction of the support tube, and the two connecting rods are distributed along the circumference of the support tube. The two connecting rods and the two semi-arc plates are alternately arranged, and the connecting rods and the semi-arc plates are fixedly connected; along the circumference of the support tube, T-slots are respectively opened on both sides of the connecting rod, and the T-slots are arranged along the axial direction of the support tube; along the circumference of the support tube, T-blocks are respectively fixedly arranged on both sides of each semi-arc plate, and the T-blocks are arranged along the axial direction of the support tube, and each T-block is slidably arranged in a T-slot; the telescopic cylinder connects the two connecting rods.

5. A central air conditioning system cleaning device according to claim 3, characterized in that: It also includes a driving mechanism, which includes an adjusting motor and an inner cylinder. The inner cylinder is arranged in the supporting cylinder, the inner cylinder and the supporting cylinder are coaxially arranged, and a first adjusting gear is fixedly arranged at one end of the inner cylinder; a plurality of air pipes are fixedly arranged on the inner cylinder, the plurality of air pipes are distributed along the axial direction of the inner cylinder, each air pipe is arranged along the radial direction of the inner cylinder, and one end of the air pipe is fixedly connected to the connecting rod; the adjusting motor is fixedly arranged in the limit box, and a second adjusting gear is fixedly arranged on the output shaft of the adjusting motor, and the second adjusting gear is meshed with the first adjusting gear.

6. A central air conditioning system cleaning device according to claim 5, characterized in that: A plurality of first air passages are provided on each semi-arc plate, and each first air passage is connected to an air outlet; a plurality of second air passages are provided on each connecting rod, and each first air passage is connected to a second air passage, and each second air passage is connected to an air pipe; the ventilation mechanism includes an air pump, which is fixedly arranged in the limit box, and is connected to the inner cylinder.

7. A central air conditioning system cleaning device according to claim 1, characterized in that: It also includes a rear shell, which is fixedly arranged on one side of the limit box, and the limit box and the rear shell are distributed in sequence along the direction from the first end to the second end of the support tube. A plurality of air holes are opened on the rear shell, and a handle is fixedly arranged on the rear shell.

8. A central air conditioning system cleaning device according to claim 6, characterized in that: An opening and closing button and an adjusting button are arranged on the rear shell; the opening and closing button controls the opening and closing of the air pump, and the adjusting button controls the extension and retraction of the telescopic cylinder.

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