A cleaning device

Abstract

The present invention provides a cleaning device, comprising: a main body, a tractor assembly and a water spray assembly, the main body comprising a shell, a control device housed in the shell, and a handle assembly fixedly connected to the shell; a water inlet pipe for connecting to a water source is housed in the shell; the tractor assembly is fixed on the shell and electrically connected to the control device, the control device is used to control the tractor assembly to perform cleaning operations; the tractor assembly comprises a cleaning brush head, the water spray assembly is fixed in the tractor assembly and communicated with an end of the water inlet pipe away from the water source, the water spray assembly comprises a plurality of evenly distributed spray holes, and the water outlet directions of the plurality of spray holes are all toward the cleaning brush head. The present invention solves the problem of wetting the cleaning brush head of the cleaning device during the cleaning process by means of a water spray assembly arranged in the cleaning device and used to spray water to the cleaning brush head, and the evenly arranged spray holes ensure that the surface of the cleaning brush head can be wetted more evenly, which is conducive to improving the cleaning effect of the cleaning device and improving the cleaning efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning equipment, and in particular to a cleaning device. Background Art

[0002] With the advancement of science and technology and the improvement of living standards, various technologies have emerged to improve human labor efficiency, and cleaning tools for floor cleaning are one of them.

[0003] In most cleaning operations, in order to effectively clean stains on the surface of an object, it is usually necessary to wet the surface of the object to be cleaned with water so that the stains on the surface of the object can be dissolved in water and transferred to the cleaning device. However, cleaning devices on the market generally need to be equipped with a wetting device for wetting the cleaning device, or a few cleaning devices equipped with a wetting device have a poor wetting effect on the cleaning device, resulting in uneven wetting of the cleaning device, and finally causing water to accumulate on the local cleaning surface or unsatisfactory cleaning effect on the local cleaning surface, which brings great inconvenience to consumers. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a cleaning device equipped with an independent water spraying assembly so that the cleaning device can spray water evenly and continuously during the cleaning process, which is beneficial to improving the cleaning effect of the cleaning device and improving the cleaning efficiency.

[0005] To achieve the above object, the present invention provides the following technical solution: a cleaning device, comprising:

[0006] A host, the host comprising a housing, a control device received in the housing, and a handle assembly fixedly connected to the housing; a water inlet pipe for connecting to a water source is received in the housing;

[0007] A tractor assembly, the tractor assembly being fixed to the housing and electrically connected to the control device, the control device being used to control the tractor assembly to perform a cleaning operation;

[0008] A water spray assembly, wherein the mop head assembly includes a cleaning brush head, the water spray assembly is fixed in the mop head assembly and is connected to an end of the water inlet pipe away from the water source, and the water spray assembly includes a plurality of evenly distributed spray holes, and the water outlet directions of the plurality of spray holes are all toward the cleaning brush head.

[0009] Preferably, the water spray assembly includes a nozzle portion provided with a cavity and a guide portion fixedly connected to the nozzle portion and communicated with the cavity, and a plurality of spray holes are arranged on a side of the nozzle portion facing the cleaning brush head; the guide portion is communicated with an end of the water inlet pipe away from the water source, and the guide portion guides water in the water source into the cavity through the water inlet pipe and sprays it out through the plurality of spray holes.

[0010] Preferably, the nozzle portion includes a first nozzle portion and a second nozzle portion which are fixedly connected, a plurality of the spray holes are arranged on the side of the first nozzle portion facing the cleaning brush head, and at least one flow guide is provided on the side of the second nozzle portion opposite to the spray holes, and the flow guide is fixedly connected to the flow guide portion and communicated with each other.

[0011] Preferably, the inner diameter of the cavity gradually increases along the spray hole toward the second nozzle portion.

[0012] Preferably, the first nozzle portion includes a first inner side wall and a second inner side wall that are arranged opposite to each other, and a first step and a second step are sequentially arranged on the first inner side wall along the direction of the spray hole toward the second nozzle portion, and the distance between the first step and the second inner side wall is smaller than the distance between the second step and the second inner side wall.

[0013] Preferably, the guide part includes a water pump connected to one end of the water inlet pipe away from the water source, a three-way valve connected to the other end of the water pump, and a guide pipe connected to the other end of the three-way valve, the other end of the guide pipe connected to the three-way valve is connected and fixed to the guide member and connects the three-way valve with the cavity; the water inlet pipe includes a first water inlet pipe arranged between the water source and the water pump, and a second water inlet pipe arranged between the water pump and the three-way valve.

[0014] Preferably, the water source is configured as a water tank assembly embedded in the shell and having a water storage function, and the water tank assembly is connected to the first water inlet pipe.

[0015] Preferably, it also includes a sewage recovery component, which includes a sewage tank embedded in the shell, a suction component connected to the sewage tank and arranged in the tractor assembly, and a sewage pipe for connecting the sewage tank and the suction component, and the suction component sucks the sewage generated in the tractor assembly away from the tractor assembly and transports it to the sewage tank through the sewage pipe.

[0016] Preferably, the sewage recovery component further comprises a scraper, the cleaning brush head is configured as a roller brush, the roller brush is rotatably disposed on the drag head component, and the scraper is fixed on the drag head component and in contact with the roller brush.

[0017] Preferably, the drag head assembly is provided with a fixed plate, the water spray assembly is fixed to the upper part of the fixed plate, the scraper blade is fixed to the fixed plate and is located below the water spray assembly, the suction assembly includes a suction port, the suction port is opened on the fixed plate and is located below the scraper blade, and the roller brush assembly is fixed to the side of the fixed plate where the scraper blade is installed and abuts against the scraper blade.

[0018] The present invention solves the problem of wetting the cleaning brush head of the cleaning device during the cleaning process by means of a water spraying assembly which is arranged in the cleaning device and is used to spray water onto the cleaning brush head. The evenly arranged spray holes ensure that the surface of the cleaning brush head can be wetted more evenly, which is beneficial to improving the cleaning effect of the cleaning device and improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the internal structure of the cleaning device of the present invention after the housing and the fixed shell are removed;

[0020] Figure 2 It is a partial structural schematic diagram of the sewage recovery component and the tractor component in the present invention;

[0021] Figure 3 This is a diagram showing the internal structure of the tractor assembly in the present invention;

[0022] Figure 4 It is an exploded schematic diagram of the tractor assembly and the water spray assembly in the present invention;

[0023] Figure 5 for Figure 4 The enlarged detail image at B in the middle;

[0024] Figure 6 It is a schematic diagram of the present invention cut along a plane passing through the center of one of the spray holes;

[0025] Figure 7 for Figure 6 Enlarged detail image at center C;

[0026] Figure 8 A partially exploded view of one embodiment of the cleaning device of the present invention;

[0027] Fig. 9 A perspective view of one embodiment of the cleaning device of the present invention;

[0028] Fig.10 It is an exploded schematic diagram of the water purification tank assembly in the present invention;

[0029] Fig.11 for Fig.10 A in the middle shows the details;

[0030] Fig.12It is a cross-sectional view of the water tank assembly of the present invention cut along one of the planes;

[0031] Fig.13 It is an exploded schematic diagram of the water tank assembly in the present invention from another perspective;

[0032] Fig.14 It is a connection diagram of the water system in the present invention.

[0033] Figure numerals: 10, main unit; 101, housing; 102, control device; 103, handle assembly; 20, tractor assembly; 30, water tank assembly; 300, water tank; 301, water inlet pipe; 302, water tank cover; 303, drainage member; 3031, drainage protrusion; 701, first sealing ring; 702, second sealing ring; 3021, cover flange; 3022, first sealing groove; 3001, water inlet; 40, sewage recovery assembly; 401, sewage tank; 402, suction assembly; 403, sewage pipe; 550, water spray assembly; 201, fixed shell; 202, cleaning brush head; 404, scraper; 50, water pump; 304, one-way valve ; 3041, fan-shaped sealing ring; 3042, third sealing ring; 2011, fixed plate; 4021, suction port; 501, nozzle part; 502, guide part; 5021, three-way valve; 5022, guide pipe; 3011, first water inlet pipe; 3012, second water inlet pipe; 60, battery assembly; 80, roller brush motor; 500, spray hole; 510, cavity; 5011, first nozzle part; 5012, second nozzle part; 5013, guide member; 90, first inner wall; 92, second inner wall; 901, first step; 902, second step; 4041, scraper fixing teeth; 4042, scraper fixing groove; 4044, soft rubber baffle. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] like Figure 1-Figure 14As shown, this embodiment provides a cleaning device, including: a main body 10, a drag head assembly 20 and a water spray assembly 550, the main body 10 includes a shell 101 and a control device 102 housed in the shell 101 and a handle assembly 103 fixedly connected to the shell 101; a water inlet pipe 301 for connecting to a water source is housed in the shell 101; the drag head assembly 20 is fixed on the shell 101 and electrically connected to the control device 102, and the control device 102 is used to control the drag head assembly 20 to perform a cleaning operation; the drag head assembly 20 includes a fixed shell 201 and a cleaning brush head 202 fixed in the fixed shell 201, the water spray assembly 550 is fixed in the fixed shell 201 and communicated with an end of the water inlet pipe 301 away from the water source, and the water spray assembly 550 includes a plurality of evenly distributed spray holes 500, and the water outlet directions of the plurality of spray holes 500 are all toward the cleaning brush head 202.

[0036] like Figure 1-Figure 6 As shown, preferably, the water spray assembly 550 includes a nozzle portion 501 provided with a cavity 510 and a guide portion 502 fixedly connected to the nozzle portion 501 and communicated with the cavity 510, and a plurality of spray holes 500 are arranged on a side of the nozzle portion 501 facing the cleaning brush head 202; the guide portion 502 is communicated with an end of the water inlet pipe 301 away from the water source, and the guide portion 502 guides water in the water source into the cavity 510 through the water inlet pipe 301 and sprays it out through a plurality of spray holes 500.

[0037] like Figure 1-Figure 7 As shown, preferably, the nozzle part 501 includes a first nozzle part 5011 and a second nozzle part 5012 that are fixedly connected. Optionally, the first nozzle part 5011 and the second nozzle part 5012 are fixedly connected to each other. A plurality of spray holes 500 are arranged on the side of the first nozzle part 5011 facing the cleaning brush head 202. At least one flow guide 5013 is arranged on the side of the second nozzle part 5012 opposite to the spray hole 500. The flow guide 5013 is fixedly connected to the flow guide part 502 and communicated with each other.

[0038] like Figure 7 As shown, preferably, the inner diameter of the cavity 510 gradually increases along the spray hole 500 toward the second nozzle portion 5012 .

[0039] refer to Figure 6-Figure 7Preferably, the first nozzle portion 5011 includes a first inner wall 90 and a second inner wall 92 that are arranged opposite to each other, and a first step 901 and a second step 902 are sequentially arranged on the first inner wall 90 along the spray hole 500 in a direction close to the second nozzle portion 5012, and a distance between the first step 901 and the second inner wall 92 is smaller than a distance between the second step 902 and the second inner wall 92. It can be seen from the above-mentioned arrangement of the cavity 510 that the space in the cavity 510 gradually shrinks from the second nozzle portion 5012 toward the first nozzle portion 5011 and finally to the direction of the spray hole 500. When water flows into the cavity 510 from the guide member 5013, it will fill the semi-sealed cavity 510, and flow from the larger part of the cavity 510 to the smaller part of the cavity 510 along the direction of the water flow, and be sprayed out from the spray hole 500 under the action of water pressure. This cavity 510 design not only increases the pressure of the water sprayed from the spray hole 500, but also enables the water flow entering the cavity 510 from the guide member 5013 to evenly fill the entire cavity 510 and then be sprayed out through each spray hole 500, thereby further increasing the uniformity of the water spray from the nozzle portion 501.

[0040] refer to Figure 2-14 , Optionally, in one embodiment of the present invention, two flow guides 5013 are provided, which are correspondingly mounted on two flow guide tubes 5022 connected to two interfaces of the three-way valve 5021, and eight spray holes 500 are provided on the first nozzle part 5011, and the eight spray holes 500 are evenly spaced along the long side of the first nozzle part 5011, that is, along the length direction of the cleaning brush head 202. It is worth noting that this setting is only an explanation of the embodiment of the present invention, and is not a limitation on the protection scope of the present invention.

[0041] refer to Figure 2-14 Preferably, the guide part 502 includes a water pump 50 connected to one end of the water inlet pipe 301 away from the water source, a three-way valve 5021 connected to the other end of the water pump 50, and a guide pipe 5022 connected to the other end of the three-way valve 5021, and the other end of the guide pipe 5022 connected to the three-way valve 5021 is connected and fixed to the guide member 5013 and connects the three-way valve 5021 with the cavity 510; the water inlet pipe 301 includes a first water inlet pipe 3011 arranged between the water source and the water pump 50, and a second water inlet pipe 3012 arranged between the water pump 50 and the three-way valve 5021.

[0042] refer to Figure 1-14 Preferably, the water source is a water tank assembly 30 embedded in the housing 101 and having a water storage function, and the water tank assembly 30 is connected to the first water inlet pipe 3011. The water tank assembly 30 includes a water tank 300 with a water storage space that can be removed from the housing 101.

[0043] refer to Figure 1-14Preferably, it also includes a sewage recovery component 40, which includes a sewage tank 401 embedded in the shell 101, a suction component 402 connected to the sewage tank 401 and arranged in the tractor assembly 20, and a sewage pipe 403 for connecting the sewage tank 401 and the suction component 402. The suction component 402 sucks the sewage generated in the tractor assembly 20 away from the tractor assembly 20 and transports it to the sewage tank 401 through the sewage pipe 403.

[0044] refer to Figure 1-14Optionally, the housing 101 is provided with a mounting groove that matches the appearance of the water tank 300 and the sewage tank 401. The present invention is also equipped with an independent battery assembly 60, which is fixed to the top of the housing 101, the water tank 300 is fixed to the upper part of the housing 101 and is located below the battery assembly 60, and the sewage tank 401 is fixed to the lower part of the housing 101 near the tractor assembly 20. Both the water tank 300 and the sewage tank 401 can be easily removed from the housing 101. A water tank cover plate 302 for sealing is provided on the top of the water tank 300. The water tank cover plate 302 is rotatably arranged on the top of the water tank 300. A water inlet 3001 is provided on the top of the water tank 300. A cover plate flange 3021 is provided on the side of the water tank cover plate 302 facing the water tank 300. An annular first sealing groove 3022 is provided on the cover plate flange 3021. A first sealing ring 701 is provided to match the annular sealing groove. The first sealing ring 701 is embedded in the first sealing groove 3022. When sealing the water tank 300, the water tank cover plate 302 is pressed and fixed in such a way that the cover plate flange 3021 is aligned with the water inlet 3001. Then, the first sealing ring 701 will seal the water inlet 3001 and further fix the water tank cover plate 302. A drainage piece 303 is provided at the bottom of the water tank 300. One end of the water inlet pipe 301 is connected to the drainage piece 303, and the other end is connected to the tractor assembly 20. A one-way valve 304 for sealing is provided at the bottom of the water tank 300, and a fan-shaped sealing ring 3041 is sleeved on the outer edge of the one-way valve 304. The fan-shaped sealing ring 3041 further ensures the sealing between the one-way valve 304 and the water tank 300 to prevent the liquid in the water tank 300 from leaking out. A third sealing ring 3042 is also fixed outside the fan-shaped sealing ring 3041 to further fix and seal the water tank 300. The flow guide 303 includes a flow guide protrusion 3031 matched with the one-way valve 304 and a second sealing ring 702 sleeved on the outside of the flow guide protrusion 3031. During assembly, the second sealing ring 702 is sleeved on the outside of the flow guide protrusion 3031, and the flow guide protrusion 3031 is inserted into the one-way valve 304. The flow guide protrusion 3031 pushes the one-way valve 304 open, and the liquid in the water tank 300 flows into the water inlet pipe 301 connected to the flow guide 303 through the water inlet pipe 301. When the water in the water tank 300 is used up, the water tank 300 can be directly removed from the housing 101, and the water tank cover 302 can be opened to add water or cleaning liquid. After adding water, the water tank 300 can be installed on the housing 101 to continue the cleaning operation. Optionally, the capacity of the water tank 300 can be set with different parameters according to different application scenarios. The cleaning device equipped with a large-capacity water tank 300 can also be provided with multiple spare water tanks 300, so that when the water tank 300 is removed and it takes too long to add water, it can be seamlessly connected without interrupting the cleaning operation.

[0045] refer to Figure 2-7Preferably, the sewage recovery component 40 also includes a scraper 404, the cleaning brush head 202 is configured as a roller brush, the roller brush is rotatably disposed on the fixed shell 201, and the scraper 404 is fixed in the fixed shell 201 and in contact with the roller brush. The fixed shell 201 includes a fixed plate 2011, the water spray assembly 550 is fixed on the upper part of the fixed plate 2011, the scraper 404 is fixed on the fixed plate 2011 and is located below the water spray assembly 550, the suction assembly 402 includes a suction port 4021, the suction port 4021 is opened on the fixed plate 2011 and is located below the scraper 404, and the roller brush assembly is fixed to a side of the fixed plate 2011 where the scraper 404 is installed and abuts against the scraper 404. Optionally, the scraper 404 is made of a hard material, such as metal. A soft rubber baffle 4044 is provided below the scraper 404 and along the edge of the suction port 4021 away from the scraper 404.

[0046] refer to Fig.14 After the water pump 50 is started, clean water is drawn from the water tank 300 into the water spray assembly 550, and is uniformly sprayed toward the cleaning brush head 202 through a plurality of spray holes 500. The roller brush is powered by a roller brush motor 80 disposed in the fixed shell 201. When the cleaning device is started for cleaning, the roller brush motor 80 drives the roller brush to rotate, and the clean water sprayed from the nozzle 501 can evenly cover the roller brush, and the roller brush and the surface to be cleaned generate rolling friction or horizontal friction (the user manually drags the roller brush horizontally), so that the stains on the surface to be cleaned that are in contact with the roller brush are attached to the roller brush and as the roller brush rotates, the scraper 404 that abuts against the roller brush scrapes off the dirt source (hair, paper scraps and other garbage) and sewage on the roller brush. At this time, the suction assembly 402 started with the cleaning device sucks the above-mentioned dirt source and sewage into the sewage pipe 403 through the suction port 4021, and transmits the sewage pipe 403 to the sewage tank 401. At this point, the entire process of the entire water system is completed, and the cleaning device provided by the present invention realizes a complete operation process from water purification and supply cleaning to sewage recovery after cleaning.

[0047] refer to Figure 2-7Preferably, a fixing plate 2011 is provided in the fixing shell 201, and the water spray assembly 550 is fixed on the upper part of the fixing plate 2011. Optionally, a groove adapted to the water spray assembly 550 and a flow guide hole corresponding to the flow guide member 5013 are provided on the fixing plate 2011, and the first nozzle part 5011 and the second nozzle part 5012 are embedded in the above groove by the flow guide member 5013 being inserted into the flow guide hole after the mortise and tenon joint, and the first nozzle part 5011 and the second nozzle part 5012 are further fixed to the fixing plate 2011 by screws. The flow guide member 5013 extends out of the flow guide hole and is fixed to the flow guide pipe 5022 located on the side of the fixing plate 2011 away from the nozzle part. A scraper blade fixing groove 4042 is provided on the fixed plate 2011, and a scraper blade fixing tooth 4041 matched with the scraper blade fixing groove 4042 is provided on the scraper blade 404. A screw hole is provided on the scraper blade fixing tooth 4041. The scraper blade fixing tooth is inserted into the scraper blade fixing groove 4042 and the scraper blade 404 is fixed by a screw, and the scraper blade 404 is located below the water spray component 550. The suction component 402 includes a suction port 4021, and the suction port 4021 is provided on the fixed plate 2011 and is located below the scraper blade 404. The roller brush assembly is fixed to a side of the fixed plate 2011 where the scraper blade 404 is installed and abuts against the scraper blade 404.

[0048] In summary, the present invention solves the problem of wetting the cleaning brush head 202 of the cleaning device during the cleaning process by means of a water spray assembly 550 disposed in the cleaning device and used to spray water to the cleaning brush head 202. The uniformly disposed spray holes 500 ensure that the surface of the cleaning brush head 202 can be wetted more uniformly, which is beneficial to improving the cleaning effect of the cleaning device and improving the cleaning efficiency. In addition, a water tank assembly 30 capable of independently storing water is also disposed in the cleaning device, so that the cleaning device can independently supply water during the cleaning operation, solving the problem of inconvenient water supply to the cleaning device during the cleaning process, and further a sewage recovery assembly 40 is disposed, so that the sewage generated during the cleaning process can be recycled by itself, and the cleaning brush head 202 can be continuously cleaned, which is beneficial to maintaining the cleaning effect of the cleaning brush head 202; in addition, an independent water system is formed by means of the water tank assembly 30, the sewage recovery assembly 40 and the water spray assembly 550, so that the cleaning device provided by the present invention can be used independently, is suitable for most places, greatly reduces the workload of people's related labor, and is easy to use and intelligent to operate, and is suitable for most people.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A cleaning device, characterized in that: include: A host, the host comprising a housing, a control device received in the housing, and a handle assembly fixedly connected to the housing; a water inlet pipe for connecting to a water source is received in the housing; A tractor assembly, the tractor assembly being fixed to the housing and electrically connected to the control device, the control device being used to control the tractor assembly to perform a cleaning operation; A water spray assembly, wherein the mop assembly includes a cleaning brush head, the water spray assembly is fixed in the mop assembly and is connected to an end of the water inlet pipe away from the water source, and the water spray assembly includes a plurality of uniformly distributed spray holes, and the water outlet directions of the plurality of spray holes are all toward the cleaning brush head; The water spray assembly comprises a nozzle portion provided with a cavity and a guide portion fixedly connected to the nozzle portion and communicated with the cavity, wherein a plurality of spray holes are arranged on a side of the nozzle portion facing the cleaning brush head; the guide portion is communicated with an end of the water inlet pipe away from the water source, and the guide portion guides water in the water source into the cavity through the water inlet pipe and sprays the water out through the plurality of spray holes; The nozzle portion comprises a first nozzle portion and a second nozzle portion which are fixedly connected, a plurality of the spray holes are arranged on a side of the first nozzle portion facing the cleaning brush head, and at least one flow guide is arranged on a side of the second nozzle portion which is opposite to the spray holes, and the flow guide is fixedly connected to the flow guide portion and communicated with each other; the inner diameter of the cavity gradually increases along the spray hole toward the second nozzle portion; The first nozzle portion includes a first inner side wall and a second inner side wall that are arranged opposite to each other, and a first step and a second step are sequentially arranged on the first inner side wall along the direction of the spray hole toward the second nozzle portion, and the distance between the first step and the second inner side wall is smaller than the distance between the second step and the second inner side wall.

2. A cleaning device according to claim 1, characterized in that: The guide part includes a water pump connected to one end of the water inlet pipe away from the water source, a three-way valve connected to the other end of the water pump, and a guide pipe connected to the other end of the three-way valve. The other end of the guide pipe connected to the three-way valve is connected and fixed to the guide member and connects the three-way valve to the cavity. The water inlet pipe includes a first water inlet pipe arranged between the water source and the water pump, and a second water inlet pipe arranged between the water pump and the three-way valve.

3. A cleaning device according to claim 2, characterized in that: The water source is configured as a water tank assembly embedded in the shell and having a water storage function, and the water tank assembly is communicated with the first water inlet pipe.

4. A cleaning device according to claim 1, characterized in that: It also includes a sewage recovery component, which includes a sewage tank embedded in the shell, a suction component connected to the sewage tank and arranged in the tractor assembly, and a sewage pipe used to connect the sewage tank and the suction component. The suction component sucks the sewage generated in the tractor assembly away from the tractor assembly and transports it to the sewage tank through the sewage pipe.

5. A cleaning device according to claim 4, characterized in that: The sewage recovery component also includes a scraper, the cleaning brush head is configured as a roller brush, the roller brush is rotatably disposed on the drag head component, and the scraper is fixed on the drag head component and contacts the roller brush.

6. A cleaning device according to claim 5, characterized in that: The drag head assembly is provided with a fixing plate, the water spray assembly is fixed on the upper part of the fixing plate, the scraper blade is fixed on the fixing plate and is located below the water spray assembly, the suction assembly includes a suction port, the suction port is opened on the fixing plate and is located below the scraper blade, and the roller brush assembly is fixed to a side of the fixing plate where the scraper blade is installed and abuts against the scraper blade.

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