Water-dust circulation cleaning head and cleaning equipment

Abstract

The invention is applicable to the technical field of cleaning equipment. The invention discloses a water and dust circulation cleaning head and cleaning equipment, the water and dust circulation cleaning head comprises a body provided with a roller, a water tank and an impeller assembly, the body is provided with a strip-shaped cavity, and the body is provided with a water pressing strip for pressing the surface of the roller and a scraping strip for scraping solid garbage on the surface of the roller; the water pressing strip, the scraping strip, the cavity and the surface of the roller form a closed cleaning water tank. The two ends, located on the roller, of the body are provided with a water tank inlet and a water tank outlet respectively. The water tank is communicated with the water tank inlet and the water tank outlet, contains and collects water and is provided with a filtering device; the impeller assembly sucks water in the water tank and throws the water into the inlet of the water tank after passing through the filtering device; during working, water in the water tank cleans the surface of the roller to take away fine particles and then is converted into sewage to flow back to the water tank, the sewage cleans the surface of the roller again after being filtered, and a water-dust circulation cleaning flow path is formed.

Description

[0001] This application is a divisional application of Chinese patent application number 202110977778.8 and invention name “A cleaning head and cleaning device based on water-dust circulation”, the contents of which are incorporated herein by reference. Technical Field

[0002] The present invention relates to the technical field of cleaning equipment, and in particular to a cleaning head and cleaning equipment based on water-dust circulation. Background Art

[0003] With the development of modern technology, there are many kinds of cleaning tools, including brooms, mops, floor wipes and vacuum cleaners. For Chinese consumers, sweeping and mopping are both necessary when cleaning the floor. Sweeping or mopping alone cannot achieve a thorough cleaning of the floor. Although the existing sweeping and mopping machines can achieve cleaning efficiency and cleanliness, the surface of the cleaning drum needs to be cleaned with clean water during the cleaning process. On the one hand, dirt, such as fine powdery garbage, can be cleaned from the surface of the drum, and on the other hand, long strips of garbage attached to the surface of the drum, such as hair, can be separated from the drum. However, the existing cleaning head based on water-dust circulation can only produce a stable flow rate during the cleaning process, so the effect of cleaning the drum surface is relatively poor. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a cleaning head and cleaning equipment based on water-dust circulation, wherein the cleaning head based on water-dust circulation can avoid the generation of a fixed flow rate during the cleaning process that cannot effectively clean the drum, thereby improving the cleaning effect of the drum surface.

[0005] In order to solve the above problems, the present invention provides a cleaning head based on water and dust circulation, which includes a main body with a roller, a strip-shaped cavity of the main body, and water pressure strips for applying pressure to the roller surface and scraping bar assemblies for scraping solid waste on the roller surface are respectively provided on both sides of the opening of the cavity. The water pressure strips, the scraping bar assemblies and the cavity form a closed cleaning water trough with the surface of the roller, and a water dividing strip is provided in the cleaning water trough to separate the cleaning water trough into a cleaning area and a water collection area.

[0006] Preferably, the cleaning water tank has a structure that is wide in the middle and narrow at both ends in the length direction.

[0007] Preferably, the cleaning water tank is provided with a clean water inlet connected to the clean water tank and a sewage outlet connected to the sewage tank.

[0008] Preferably, the water pressure strip is arranged in parallel with the scraper strip.

[0009] Preferably, the water dividing strip is provided with flow holes.

[0010] Preferably, a groove is provided in the middle of the water dividing strip, and the flow hole is located at the bottom of the groove.

[0011] Preferably, the cleaning water tank is inclined in the length direction, wherein the sewage outlet end is lower than the clean water inlet end.

[0012] The present invention also provides a cleaning device, which includes a cleaning head based on water and dust circulation, and the cleaning head based on water and dust circulation includes a main body with a roller, a strip-shaped cavity of the main body, and water pressure bars for applying pressure to the roller surface and scraping bar assemblies for scraping solid waste off the roller surface are respectively provided on both sides of the opening of the cavity, the water pressure bars, the scraping bar assemblies and the cavity form a closed cleaning water trough with the surface of the roller, and a water dividing bar is provided in the cleaning water trough to separate the cleaning water trough into a cleaning area and a water collection area.

[0013] Preferably, the cleaning water tank has a structure that is wide in the middle and narrow at both ends in the length direction.

[0014] Preferably, the cleaning water tank is provided with a clean water inlet connected to the clean water tank and a sewage outlet connected to the sewage tank.

[0015] Preferably, the water retaining strip is arc-shaped or straight-line-shaped.

[0016] Preferably, the scraper strip is arranged in parallel.

[0017] Preferably, the and / or scraper strip is arc-shaped.

[0018] Preferably, the area formed by the scraper strip on the drum surface is inclined with respect to the horizontal plane.

[0019] Preferably, the water dividing strip is provided with flow holes.

[0020] Preferably, a groove is provided in the middle of the water dividing strip, and the flow hole is located at the bottom of the groove.

[0021] Preferably, the cleaning water tank is inclined in the length direction, wherein the sewage outlet end is lower than the clean water inlet end.

[0022] Preferably, an impeller cavity is provided on the main body, the impeller of the impeller assembly is installed in the impeller cavity, a filter hole is provided on the impeller cavity cover of the impeller cavity, and the water in the water tank is filtered by the impeller cavity cover and then thrown into the water tank by the impeller.

[0023] Preferably, the cleaning head based on water-dust circulation further comprises: a shovel bar mounted on the body, the shovel bar having an arc-shaped working surface, a garbage channel being formed between the arc-shaped working surface and the outer circumferential surface of the drum, the shovel bar and the water retaining bar being located on both sides of the garbage channel.

[0024] Preferably, the sink cover is reversible.

[0025] Preferably, the sink cover can be flipped at an angle of ≥90°.

[0026] Preferably, the sink cover is L-shaped.

[0027] Preferably, the water squeezed out by the water pressure bar enters the water tank from the water trough outlet by its own weight.

[0028] Preferably, the water retaining strip and / or the shovel strip are rubber strips.

[0029] The present invention discloses a cleaning head and cleaning equipment based on water-dust circulation, wherein the cleaning head based on water-dust circulation comprises a body provided with a drum, a strip-shaped cavity of the body, and two sides of the cavity opening are respectively provided with a water pressure strip for applying pressure to the drum surface and a scraping strip for scraping solid garbage on the drum surface, the water pressure strip, the scraping strip assembly and the cavity form a closed cleaning water tank with the drum surface, and a water dividing strip is provided in the cleaning water tank to separate the cleaning water tank into a cleaning area and a water collecting area. During operation, the drum surface is cleaned with clean water, and fine particles such as dust on the drum surface are taken away by the clean water, and then the water is circulated through treatment such as filtering, and the drum surface is cleaned again, forming a water-dust circulation cleaning flow path. During use, the clean water on the drum surface is used to flush the drum, and because the water dividing strip divides the cleaning water tank, it is prevented that the clean water reattaches the fine granular garbage in the cleaning water tank to the drum surface during cleaning, thereby improving the drum cleaning efficiency, thereby also preventing the fine granular garbage on the drum surface from being reattached to the cleaning surface by the cleaning process again, thereby affecting the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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 in the description only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of the cross-sectional structure of an embodiment of a cleaning head based on water-dust circulation of the present invention, along a direction perpendicular to the length of the drum.

[0032] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A.

[0033] Figure 3a It is a schematic structural diagram of a scraper strip assembly embodiment.

[0034] Figure 3b for Figure 3aSchematic diagram of the cross-sectional structure along the middle direction perpendicular to the length of the scraper strip assembly.

[0035] Figure 4 A schematic structural diagram of another perspective of an embodiment of a cleaning head based on water-dust circulation.

[0036] Figure 5 Schematic diagram of the structure of an embodiment of a cleaning head with an impeller assembly based on water-dust circulation.

[0037] Figure 6a Schematic diagram of the structure of the water tank cover in the closed state of the cleaning head embodiment based on water and dust circulation.

[0038] Figure 6b Schematic diagram of the structure of the water tank cover in the open state of the cleaning head embodiment based on water and dust circulation.

[0039] Figure 7 Another structural schematic diagram of the impeller assembly of the cleaning head embodiment based on water-dust circulation of the present invention.

[0040] Figure 8a It is another structural schematic diagram of the impeller assembly of the cleaning head embodiment based on water-dust circulation of the present invention.

[0041] Figure 8b This is a schematic structural diagram of the impeller assembly from another perspective of an embodiment of the cleaning head based on water-dust circulation of the present invention.

[0042] Fig. 9 It is a schematic structural diagram of an embodiment of the cleaning equipment of the present invention.

[0043] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0044] The claims of the present invention are further described in detail below in conjunction with specific embodiments and drawings. 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 proposed by ordinary technicians in this field before making creative work also fall within the scope of protection of the present invention.

[0045] It should be understood that, in the description of the embodiments of the present invention, all directional indication terms, such as "up", "down", "left", "right", "front", "back", etc., indicate the orientation or position relationship based on the orientation, position relationship shown in the drawings or the orientation or position relationship in which the invented product is usually placed when in use, which is only for the convenience of simplifying the description of the present invention, and does not expressly or imply that the device, element or component referred to must have a specific orientation and a specific orientation structure, and should not be understood as a limitation on the present invention. It is only used to explain the relative position relationship, movement, etc. between the components shown in the drawings. When the specific posture changes, the directional indication may also change accordingly.

[0046] In addition, ordinal numbers such as "first" and "second" in the present invention are only used for the purpose of distinction, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. The features defined as "first" and "second" can explicitly or implicitly indicate at least one of the technical features. In the description of the present invention, "multiple" means at least two, that is, two or more, unless otherwise clearly defined; "at least one" means one or one and more.

[0047] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, the positional relationship between components can be relatively fixed, or the components can be physically fixedly connected; they can be detachably connected or integrated; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium or component; they can be internally connected between two elements or interact with each other. Unless otherwise clearly defined in the specification, other interpretations may not achieve the corresponding functions or effects. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] The controller and control circuit involved in the present invention are conventional control technologies or units of those skilled in the art. For example, the control circuit of the controller can be realized by ordinary technicians in the field using existing technologies, such as simple programming. If the software or program involved in the control result is not described in detail, it belongs to the use of existing technologies or conventional technologies of ordinary technicians in the field. The power supply also uses the existing technologies in the field, and the main technical point of the present invention is to improve the mechanical device, so the present invention will not describe the specific circuit control relationship and circuit connection in detail.

[0049] The disclosure of the present invention provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described in the present invention. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0050] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0051] The present invention relates to a cleaning device, which can be used for cleaning floors, especially smooth and flat floors of small areas, such as floors in homes and kitchens. The cleaning device of the present invention is particularly suitable for cleaning mixed garbage containing dry garbage, wet garbage and viscous materials such as noodles, porridge, ketchup and the like.

[0052] The dry garbage mentioned in the present invention specifically refers to granular garbage, such as fruit peels, melon seed shells, rice grains, paper pieces, etc.

[0053] Wet garbage refers to liquid garbage, such as water, beverages, etc.

[0054] Sticky garbage (or sticky garbage) includes soup, stew, porridge, ketchup, chocolate sauce and other garbage with a certain viscosity.

[0055] Other garbage also includes dust, ground marks, etc., which are also cleaning objects of the present invention.

[0056] like Figure 1 -8, the present invention provides a cleaning head embodiment based on water-dust circulation.

[0057] The cleaning head based on water-dust circulation includes: a main body 11 provided with a drum, a strip-shaped cavity of the main body 11, and water pressure strips 115 for applying pressure to the surface of the drum 113 and a scraping bar assembly 213 for scraping solid waste on the surface of the drum 113 are respectively provided on both sides of the opening of the cavity. The water pressure strips 115, the scraping bar assembly 213 and the cavity form a closed cleaning water tank A with the surface of the drum 113.

[0058] Specifically, the cleaning water tank A is wide in the middle and narrow at both ends in the length direction, so that small garbage can be concentrated during the cleaning process, and different cleaning impact water flows can be formed on the surface of the drum 113, thereby facilitating the cleaning of garbage. The cleaning water tank A is respectively provided with a clean water inlet connected to the clean water tank and a sewage outlet connected to the sewage tank. The water pressure bar 115 is arranged parallel to the scraper bar on the scraper bar assembly 213.

[0059] The cleaning water tank A is provided with a water dividing strip 213b-2, which separates the cleaning water tank A into a cleaning area and a water collecting area. Since the cleaning water tank A is divided into the cleaning area and the water collecting area by the water dividing strip 213b-2, the clean water and the sewage during cleaning can be separated, so as to avoid the mixing of sewage and clean water when the surface of the drum 113 is cleaned and flushed, thereby affecting the efficiency of cleaning the surface of the drum 113. The water dividing strip 213b-2 is provided with a flow hole (not shown in the drawings), through which the cleaning area and the water collecting area are connected, so that the garbage cleaned from the surface of the drum 113, especially the fine solid particles, can be concentrated, and at the same time, the fine solid particles can be prevented from being affected by the clean water again and attached to the surface of the drum 113 again.

[0060] A groove (not shown in the figure) is provided in the middle of the water diversion strip, and the flow hole is located at the bottom of the groove, which can better facilitate the collection of fine solid particles and allow them to enter the water collection area. The cleaning water tank A is inclined in the length direction, with the sewage outlet end being lower than the clean water inlet end, which makes it easier to utilize the potential energy of the clean water flow and improve the cleaning efficiency.

[0061] During operation, the surface of the drum is cleaned with clean water, and fine particles such as dust on the surface of the drum are taken away by the clean water. Then, the water is circulated through treatment such as filtration to clean the surface of the drum again, forming a water-dust circulation cleaning flow path. During use, the clean water on the surface of the drum is used to flush the drum. Since the water dividing strip divides the cleaning water tank, the clean water is prevented from reattaching the fine particles in the cleaning water tank to the surface of the drum during cleaning, thereby improving the cleaning efficiency of the drum, thereby preventing the fine particles on the surface of the drum from being reattached to the cleaning surface during the cleaning process, thereby affecting the cleaning efficiency.

[0062] like Figure 1 -8, the present invention specifically describes a cleaning head structure based on water-dust circulation, the cleaning head 110 based on water-dust circulation includes a main body 111, a water tank 112, a roller 113, a scraper bar assembly 213, a water pressure bar 115, a water tank cover 116, an impeller assembly 117, a filter device 118 and a shovel bar (not shown in the drawings).

[0063] In this embodiment, the water tank 112 is integrally formed with the body 111. In other embodiments of the present invention, the water tank may also be detachably mounted on the body. Integral forming can avoid designing a water check structure, reduce structural complexity and the risk of water leakage at the water tank interface.

[0064] The roller 113 includes an inner layer of hard rubber and a sponge layer wrapped outside the hard rubber. The end of the hard rubber can be fixed to the body 111 through a connecting piece such as a bearing. The roller driving mechanism drives the hard rubber to rotate around its axis through the roller transmission mechanism, driving the roller to rotate, so that the surface of the roller moves in a circular motion. An arc-shaped movable guard plate can be set on the body 111 to facilitate the removal of the roller 113.

[0065] The scraper assembly 213, the water pressure strip 115, the drum 113 and the water tank cover 116 form a water tank A. The scraper assembly 213 is installed on the body 111 to interfere with the drum 113 (i.e., to squeeze the drum) to prevent the water in the water tank A from flowing to the ground along the drum 113. The water pressure strip 115 also interferes with the drum 113 and is used to squeeze out the water in the drum 113 to clean the drum 113 and keep the humidity of the drum 113 at a suitable level. The scraper assembly 213 includes a scraping fixed portion 213c and a scraper strip 213a and a water retaining strip 213b coated on the surface of the fixed portion 213c. The scraper strip 213a and the water retaining strip 213b can be made of rubber strips, and the scraper strip 213a and the water retaining strip 213b are made of soft materials, and the fixed portion 213c and the water pressure strip 115 are made of hard materials.

[0066] The water pressure bar 115 includes a straight section and arc sections arranged at both ends of the straight section. During the operation of the cleaning tool, the drum 113 rotates continuously, and the water pressure bar 115 squeezes out the sewage in the drum. The straight section and the arc sections at both ends can keep squeezing the drum continuously. Such an arrangement can gather the sewage squeezed out from both ends of the drum and drain it into the sink. The water pressure bar 115 can be arranged in a V shape, so that the sewage on the surface of the drum 113 can be concentrated and the resistance can be reduced.

[0067] Figure 3a , Figure 3bThe scraper bar assembly 213 shown includes a scraper fixed portion 213c and a scraper bar 213a and a water retaining bar 213b coated on the surface of the fixed portion 213c. Among them, the water retaining bar 213b includes a water retaining portion 213b-1 and a water receiving bar 213b-2. The scraper bar 213a and the water retaining portion 213b-1 interfere with the drum respectively (i.e., squeeze the drum). The water pressure bar 115, the water retaining portion 213b-1, the water receiving bar 213b-2, and the drum 113 form a clean water tank A, and the water receiving bar 213b-2 and the shell 210 form a sewage tank. The scraper bar 213a is in the shape of a "Y". The tip of the "Y" shape interferes with the drum of the drum cleaning tool, which helps to peel off the garbage adhering to the drum during the operation of the cleaning tool.

[0068] The shape of the water retaining bar 213b is similar to the "Y" shape. The water retaining portion 213b-1 and the water receiving bar 213b-2 are respectively two forks of the "Y" shape. The water retaining portion 213b-1 interferes with the drum 113, and during the operation of the cleaning tool, cooperates with the arc-shaped working bar (not shown in the figure) of the water pressure bar 115 to squeeze out the water in the drum 113. As the drum 113 rotates, the water squeezed out of the drum 113 flows to the water storage space formed by the water pressure bar 115, the water retaining bar 213b and the drum 113. The two ends of the water retaining bar 213b are set to an arc shape. Through the cooperation of the water retaining bar 213b and the arc 213b-3, the sewage squeezed out of the drum 113 is gathered and drained into the sink. This design can keep the portion of the drum 113 squeezed by the arc segment 213 b - 3 in an unsaturated state (ie, not fully absorbed with water), thereby preventing the water in the water tank from flowing out from both ends of the drum 113 .

[0069] like Figure 5 As shown, in this embodiment, the water tank cover 116 is reversible, and it can be turned along the axis 116a to facilitate cleaning of garbage in the water tank A. Optionally, the angle at which the water tank cover 116 can be turned is ≥90° ( Figure 5 In this embodiment, the water tank cover 116 is L-shaped, one end of which is connected to the water retaining bar 213b, and the other end is connected to the water pressing bar 115. The water tank A formed by the water tank cover 116 and the drum 113 is a semi-enclosed water tank.

[0070] The body 111 is provided with a water tank inlet (not shown in the figure) and a water tank outlet 111a, which are respectively located at the two ends of the drum 113. The water in the water tank 112 enters the cleaning water tank A from the water tank inlet through the impeller assembly 117, and the water squeezed out by the water pressure bar 115 enters the water tank 112 from the water tank outlet 111a. That is, the water in the water tank 112 can be recycled. The water replacement cycle can be set according to actual conditions, which can achieve the purpose of saving water. Optionally, the cleaning water tank A can be set as an inclined waterway, so that the water in the water tank A can flow into the water tank 112 from the water tank outlet under the action of its own weight.

[0071] The impeller assembly 117 is located at the inlet direction of the water tank, and is used to throw the water in the water tank 112 into the inlet of the water tank, so that the water in the water tank 112 enters the water tank A to clean the drum 113. The impeller assembly 117 includes an impeller 117a and a reduction box 117b. The impeller 117a is installed in the impeller cavity, and the reduction box 117b is installed in the body 111. The impeller 117a rotates rapidly, and under the action of centrifugal force, the water in the water tank 112 is thrown into the inlet of the water tank.

[0072] In order to prevent the impeller from being stuck by garbage, a filter device can be provided in the water tank 112. The water in the water tank is filtered by the filter device before entering the impeller assembly, which can protect the impeller assembly. In this embodiment, the filter device is a filter sheet 118. In other embodiments of the present invention, other types of filter devices can also be used.

[0073] In this embodiment, a shovel bar is further provided on the cleaning head 110 based on water-dust circulation. The shovel bar is fixedly connected to the body 111 and has an arc-shaped working surface. A garbage channel is formed between the arc-shaped working surface and the outer circumferential surface of the drum 113. In this embodiment, the shovel bar and the water retaining bar 113 are located on both sides of the garbage channel. Garbage enters the water tank 112 through the garbage channel and the water retaining bar. Optionally, the shovel bar is a rubber strip, for example, a soft rubber.

[0074] FIG6 shows the direction of water in the cleaning head based on the water-dust circulation, and the arrows represent the direction of water flow. The water in the water tank 112 enters the impeller assembly 117, and the impeller 117a rotates clockwise, driving the water to rotate clockwise, and under the action of centrifugal force, the water is thrown into the water tank A. The water flows in the water tank A, cleans the drum, and brings the garbage into the water tank 112.

[0075] Figure 7 Another cleaning head 210 based on water-dust circulation of the present invention is shown. Figure 1 The cleaning head 110 based on water-dust circulation of the embodiment shown in Figure 6 is different in that the structure of the filter device is different. In this embodiment, the impeller chamber cover 211a of the impeller chamber is provided with filter holes, and the water in the water tank 212 is filtered by the impeller chamber cover 211a and thrown into the water tank by the impeller 217a. In this embodiment, half of the impeller chamber cover 211a is provided with filter holes, and the part with the filter holes is facing downward during installation. In other embodiments of the present invention, the filter holes can be provided on the entire impeller chamber cover 211a.

[0076] FIG8 shows a cleaning device 100 provided by the present invention, which includes the above-mentioned cleaning head 110 based on water-dust circulation, and is further provided with a handle 120. The handle 120 and the cleaning head 110 based on water-dust circulation can be connected by a hinge. In this embodiment, a switch is provided on the handle 120, and the switch drum 113 starts to rotate to clean the floor.

[0077] When the cleaning device of the present invention is used to clean dry garbage on the ground, when the drum 113 rolls over the ground, the dry garbage particles on the ground compress and deform the sponge layer of the drum 113, and the sponge layer wraps the dry garbage particles through deformation, so that the dry garbage particles are separated from the ground and rotate with the drum 113. When the drum 113 is turned to the shovel bar position, the dry garbage particles leave the ground, are squeezed by the shovel bar, and continue to rotate with the drum 113. When the shovel bar is turned and reaches the water retaining bar 213b, the sponge layer recovers and deforms due to the loss of the pressure of the shovel bar, and the dry garbage particles wrapped by it are released, enter the water tank A, and then flow into the water tank 112 with the water flow.

[0078] Some small particles of dry garbage may still be attached to the sponge layer, which can be removed from the surface of the drum 113 by the flushing force of the water and the water pressure bar 115, enter the water tank A, and then flow into the water tank 112 with the water flow.

[0079] When the cleaning device of the present invention is used to clean wet garbage, the sponge layer of the drum 113 absorbs the wet garbage. The wet garbage moves with the drum 113 to the water pressure bar 115, and the water pressure bar 115 squeezes the sponge layer of the drum 113, and the wet garbage is released from the sponge layer, enters the water tank A, and then flows into the water tank 112 with the water flow.

[0080] When the cleaning device of this embodiment is used to clean sticky garbage, the sticky garbage adheres to the sponge layer of the drum 132 and partially penetrates into the sponge layer of the drum 132. The drum 132 continues to rotate and reaches the water tank A. Under the combined action of the flushing force of the water, the water retaining bar 213b and the water pressure bar 115, the sticky garbage is removed from the surface of the drum 113, enters the water tank A, and then flows into the water tank 112 with the water flow.

[0081] The present invention utilizes the "water-dust circulation" cleaning technology to realize self-cleaning of the drum, and combines sweeping, mopping, washing and twisting together, which greatly facilitates the user and can achieve a very good cleaning effect.

[0082] Obviously, the above embodiments are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A water dust circulation cleaning head, characterized in that: include: A roller that rotates to mop the floor; The main body has a strip-shaped cavity, and the drum is detachably fixed on the main body. A water pressure strip for applying pressure to the drum surface and a scraper assembly for scraping solid waste from the drum surface are respectively provided on both sides of the cavity opening; the water pressure strip, the scraper assembly and the drum surface form a closed cleaning water tank, and the main body is located at both ends of the drum and is respectively provided with a water tank inlet and a water tank outlet; A water tank is connected to the water tank inlet and the water tank outlet, contains and collects water, and a filtering device is provided on the water tank; The impeller assembly sucks the water in the water tank through the filter device and then throws it into the water tank inlet; During operation, the water in the water tank cleans the surface of the drum, removes fine particles, and then turns into sewage and flows back to the water tank. After the sewage is filtered, it cleans the surface of the drum again, forming a water-dust circulation cleaning flow path; Preferably, the roller comprises an inner layer of hard rubber and a sponge layer wrapped outside the hard rubber; Preferably, the end of the hard rubber can be fixed to the body through a connecting piece; Preferably, the connecting member is a bearing arranged between the end of the hard rubber and the body.

2. The water dust circulation cleaning head according to claim 1, characterized in that: The water tank is integrally formed with the body or detachably mounted on the body.

3. The water dust circulation cleaning head according to claim 1, characterized in that: The scraper bar assembly comprises a fixed portion, a scraper bar and a water retaining bar coated on the surface of the fixed portion, and the water retaining bar is arranged parallel to the scraper bar; Preferably, the scraper strip is in a Y-shape; Preferably, the water retaining bar is in a Y-shape, and the water squeezed out from the drum flows to the water storage space formed by the water pressure bar, the water retaining bar and the drum surface.

4. The water dust circulation cleaning head according to claim 3, characterized in that: Both ends of the water retaining strip are arranged in arc shape.

5. The water dust circulation cleaning head according to claim 3, characterized in that: The water retaining strip comprises a water retaining portion and a water receiving strip, and the scraping strip and the water retaining portion interfere with the drum respectively; Preferably, the cleaning water tank includes a clean water tank and a sewage tank; The water pressure strip, the water retaining part, the water receiving strip, and the drum form the clean water tank; The water receiving bar and the body form the sewage tank; Preferably, the cleaning water tank is inclined in the length direction, and the water tank outlet is lower than the water tank inlet; Preferably, the water pressure strip is arc-shaped.

6. The water dust circulation cleaning head according to claim 1, characterized in that: The main body is fixedly connected with a shovel bar, which has an arc-shaped working surface, and a garbage channel is formed between the arc-shaped working surface and the outer circumferential surface of the drum, and the shovel bar and the water retaining bar are located on both sides of the garbage channel; Preferably, the areas formed by the water pressing strips and the scraping strips on the drum surface are inclined with respect to the horizontal plane.

7. The water dust circulation cleaning head according to claim 1, characterized in that: The body is provided with an impeller cavity connected to the water tank, the impeller cavity is connected to the water tank inlet, the impeller assembly is arranged in the direction of the water tank inlet, and the impeller assembly includes: A reduction box is installed in the body; The impeller is installed in the impeller cavity and is driven to rotate by the reduction gearbox.

8. The water dust circulation cleaning head according to claim 7, characterized in that: The filtering device is a filter sheet.

9. The water dust circulation cleaning head according to claim 7, characterized in that: The impeller chamber is provided with an impeller chamber cover, the impeller chamber cover is connected to the water tank and is provided with filter holes, and the filtering device passes through the filter holes.

10. A cleaning device, characterized in that: include: The water dust circulation cleaning head as claimed in any one of claims 1 to 9; The handle is connected to the water-dust circulation cleaning head via a hinge.

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