Surface cleaning device and cleaning system

Abstract

The utility model belongs to the technical field of cleaning equipment, and particularly relates to surface cleaning equipment and a cleaning system.The surface cleaning equipment comprises a main machine device and a dirt separating device, and the dirt separating device is communicated with a dirt recycling part of the main machine device and used for separating dirt of the dirt recycling part; the dirt separation device comprises a shell assembly, a separation assembly and a control assembly, wherein an accommodating cavity is formed in the shell assembly; the separation unit is located in the containing cavity and comprises a separation chamber, a separation piece set and a rotating shaft, the separation piece set is located in the separation chamber and connected with the rotating shaft, and at least part of the rotating shaft extends out of the separation chamber; the driving part is arranged on the shell assembly and used for driving the rotating shaft to rotate in the first direction or the second direction, and the first direction is opposite to the second direction. According to the utility model, filtrate and dirt can be separated from dirt, so that the subsequent cooking condensation effect can be improved; in addition, self-cleaning can be carried out, and equipment maintenance is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning equipment, and particularly relates to a surface cleaning equipment and a cleaning system. Background Art

[0002] Household cleaning equipment such as floor washing machines and sweeping robots play an increasingly important role in modern cleaning work with their characteristics of high efficiency, environmental protection, and multi-function, and are widely used in many places.

[0003] Some existing surface cleaning equipment has a sewage recycling function. For the sewage generated during the surface cleaning operation, the common recycling method is to directly recycle the sewage collected after the cleaning operation into an evaporation device for cooking treatment, in order to separate the solid waste (dry garbage) in the sewage by evaporating the water. However, this method has some defects, which limit its effect and sustainability in practical applications: since there are often a large amount of dry garbage mixed in the sewage, and the dry garbage is cooked together with the water for a long time, the condensed water collected by condensation will have some abnormal colors and odors, and these bad substances will dissolve or suspend in the condensed water and cannot be directly put into the clean water tank of the floor washing machine for recycling; moreover, as the cooking process progresses, some dry garbage will gradually solidify or adhere to the inner wall of the evaporation dish, forming residues that are difficult to remove, affecting the heat transfer efficiency and cooking effect of the evaporation dish. Summary of the Utility Model

[0004] In view of the above-mentioned deficiencies of the prior art, the purpose of the present utility model is to provide a surface cleaning equipment and a cleaning system, which are used to solve the technical problem that the sewage collected by the surface cleaning equipment in the prior art is not effectively separated and is difficult to be recycled.

[0005] To achieve the above purpose and other related purposes, the technical solution of the present utility model is as follows:

[0006] A surface cleaning equipment, comprising:

[0007] A main machine device, including a cleaning medium accommodating part and a dirt recycling part, the cleaning medium accommodating part is used for storing the cleaning medium required for the surface cleaning process, and the dirt recycling part is used for recycling the dirt generated during the surface cleaning process;

[0008] A dirt separation device, communicated with the dirt recycling part, is used for separating the dirt in the dirt recycling part, and the dirt separation device includes:

[0009] A housing assembly, which has an accommodating cavity inside;

[0010] A separation unit, located within the accommodation cavity, includes a separation chamber, a separation plate group, and a rotating shaft. The separation plate group is located within the separation chamber and is connected to the rotating shaft. At least a part of the rotating shaft extends out of the separation chamber.

[0011] A driving member, disposed on the housing assembly, is configured to drive the rotating shaft to rotate in a first direction or a second direction, where the first direction is opposite to the second direction.

[0012] In the above structure, by providing a dirt separation device communicated with the dirt recovery part, the dirt collected by the dirt recovery part is separated by high-speed rotation. Under the centrifugal force, according to the density differences of various substances, substances with different densities will be separated. Thus, the dirt entering the separation chamber can quickly separate out filtrate and stains under the combined action of the separation plate group and the rotation of the separation chamber, separating the wet and dry garbage in the dirt, and can also separate out fine dry garbage particles and even some soluble substances, avoiding situations such as the generation of abnormal colors and odors during subsequent recycling.

[0013] The above-mentioned separation plate group can effectively separate the filtrate and stains at high speed. However, the applicant further found during testing that in the above dirt separation device, after multiple centrifugal separations, the stains remaining in the separation device will gradually accumulate at the bottom of the centrifugal device, creating new cleaning and maintenance problems. Since the separation plate group is arranged inside the dirt separation device, it is impossible for users to remove and clean it portably, and it also brings trouble to timely cleaning and maintenance. To improve the separation effect, the distance gap between the separation plates is relatively narrow, and users cannot effectively clean the inside of the separation plate group by using conventional auxiliary cleaning components such as brushes.

[0014] Therefore, to solve the effective cleaning and maintenance problems, a new structure with a dual mode of centrifugal separation + self-cleaning is further designed.

[0015] Optionally, it further includes a one-way rotation limiting member, disposed between the rotating shaft and the separation chamber, for limiting the one-way synchronous movement of the separation chamber along with the rotating shaft. The dirt separation device has a separation mode and a self-cleaning mode.

[0016] In the separation mode, the driving member drives the rotating shaft to rotate in the first direction, and the separation plate group and the separation chamber rotate synchronously along with the rotating shaft, so that the dirt entering the separation chamber is separated into filtrate and stains under the combined action of the separation plate group and the separation chamber.

[0017] In the self-cleaning mode, the driving member drives the rotating shaft to rotate in the second direction, the one-way rotation limiting member keeps the separation chamber stationary, and the separation plate group rotates synchronously along with the rotating shaft, so that the cleaning medium entering the separation chamber cleans the separation unit under the action of the separation plate group.

[0018] In the above structure, in the self-cleaning mode, the driving member rotates along the second direction, the separation chamber remains stationary, and the separation blade group rotates in the reverse direction. The rotation of the separation blade group generates a strong stirring effect inside the separation chamber, accelerating the cleaning medium entering the separation chamber to a high-speed state under the stirring action of the separation blade group, generating a strong scouring force, and strongly cleaning the separation unit, thereby achieving internal self-cleaning and facilitating equipment maintenance.

[0019] Moreover, since a one-way rotation limiting member is provided between the separation chamber and the housing assembly, when the driving member rotates along the first direction, the separation blade group and the separation chamber can rotate together with the rotating shaft; when the driving member rotates along the second direction, due to the limitation of the one-way rotation limiting member (i.e., it can only rotate along the first direction and cannot rotate in the second direction), the separation chamber does not rotate with the rotating shaft, that is, the separation chamber remains stationary, and only the separation blade group rotates in the reverse direction with the rotating shaft, which is beneficial to the internal self-cleaning of the separation chamber.

[0020] Optionally, a clean water inlet is provided at the top of the housing assembly, and a sewage outlet is provided at the bottom of the housing assembly. In the separation mode, the dirt enters the separation chamber from the sewage outlet, and the separated filtrate is discharged from the clean water inlet. The separated stains are thrown to the inner wall of the separation chamber; in the self-cleaning mode, the cleaning medium enters the separation chamber from the clean water inlet and is discharged from the sewage outlet.

[0021] In the above structure, by setting the sewage outlet at the bottom of the housing assembly and the clean water inlet at the top of the housing assembly, on the one hand, it is to meet the requirements of centrifugal separation, that is, the filtrate after centrifugal separation will flow upward. In the separation mode, the dirt enters from the sewage outlet at the bottom of the housing assembly, and the separated filtrate is discharged from the clean water inlet at the top. Mainly based on the density difference of each substance, substances with different densities will be separated. The stains with a larger specific gravity will flow downward, and the filtrate with a smaller specific gravity will flow upward. Therefore, the clean water inlet needs to be set at the top; considering the simplification of the structure, the sewage outlet is correspondingly set at the bottom. On the other hand, in the self-cleaning mode, the cleaning medium enters the separation chamber from the clean water inlet at the top of the housing assembly, and internal cleaning is achieved under the stirring action of the separation blade group. The cleaned water can be discharged through the sewage outlet at the bottom only by gravity.

[0022] Optionally, the clean water inlet is directly or indirectly connected to the cleaning medium accommodating part of the main machine device, and the sewage outlet is connected to the dirt recovery part of the main machine device.

[0023] In the above structure, the clean water outlet is directly (direct reflux) or indirectly connected (re-filtered) to the cleaning medium accommodating part of the main machine device, which is conducive to the circulation and transmission of the cleaning medium. The separated filtrate can directly reflux from the clean water outlet to the cleaning medium accommodating part, or flow to the cleaning medium accommodating part after filtration. The dirt collected by the dirt recovery part during the surface cleaning process can enter the separation chamber through the sewage outlet for dirt separation.

[0024] Optionally, the separation disc group includes a plurality of stacked discs. A plurality of disc flow channels are formed between adjacent discs. A plurality of separation holes are formed in each disc, and the separation holes are correspondingly communicated with the disc flow channels. The inner side of each disc is surrounded to form a hollow conical structure.

[0025] In the above structure, the discs are stacked and a plurality of disc flow channels are formed, which can greatly increase the separation area, enabling the dirt to be more fully dispersed and settled under the action of centrifugal force; by rotating the separation disc group at a high speed, under the action of centrifugal force, the dirt enters the corresponding disc flow channels through the separation holes, and under the drive of the high-speed rotating force, the separated filtrate will flow upward along the disc flow channels until it is discharged through the clean water outlet; the separated stains will be thrown downward along the disc flow channels to the inner wall of the separation chamber.

[0026] Optionally, a plurality of spirally arranged isolation protrusions are arranged along the circumference of the disc. The top end of the disc has a platform part. Each isolation protrusion extends from the platform part of the disc to the bottom, and the top end of the isolation protrusion is connected to the platform part.

[0027] In the above structure, the disc flow channels are formed by a plurality of isolation protrusions, which is conducive to the centrifugal separation of dirt, so that the filtrate and stains can be separated by using the difference in medium density through the disc flow channels.

[0028] Optionally, a plurality of the separation holes are arranged along the circumference of the disc, and each of the separation holes is located between adjacent isolation protrusions.

[0029] In the above structure, by arranging a plurality of separation holes along the circumference of the disc, it is conducive to the balance during the centrifugal separation of dirt; by the separation holes being located between adjacent isolation protrusions, it is conducive to the dirt entering the disc flow channels of each disc from the bottom of the separation disc group for centrifugal separation. The density of the filtrate is smaller and it will move upward and be discharged; the density of the stains is larger and it will move downward and be discharged.

[0030] Optionally, disc mounting holes are formed in the platform part of each disc, and a plurality of the discs are connected to the rotating shaft through their respective disc mounting holes.

[0031] In the above structure, by providing disc mounting holes on the platform part at the top of the disc, it is convenient to connect the disc to the rotating shaft. The disc is installed and fitted through the disc mounting holes to ensure the stability of the disc during high-speed rotation. Multiple discs are connected to the rotating shaft through their respective disc mounting holes, and the rotating shaft provides power to drive the separator blade group to rotate at high speed, thereby generating centrifugal force to achieve solid-liquid separation.

[0032] Optionally, the maximum radius of the disc is 40 mm to 90 mm, the minimum radius of the disc is 8 mm to 20 mm, and the angle of the apex angle of the longitudinal section of the disc is 30° to 45°.

[0033] In the above structure, by setting reasonable maximum radius, minimum radius of the disc and the angle of the apex angle of the longitudinal section of the disc, it is beneficial to enable the separator blade group to achieve a better separation effect in a limited space, which helps to improve the separation efficiency, enhance the processing capacity, ensure the stability and balance of the disc group during high-speed rotation, and also helps to reduce the vibration and noise generated during the rotation of the disc, thereby improving the overall performance of the equipment.

[0034] Optionally, the rotational angular velocity of the separator blade group is 5000 r / min to 20000 r / min, and the gap between adjacent discs is 1 mm to 3 mm.

[0035] In the above structure, by setting a reasonable rotational angular velocity, it is beneficial to improve the separation efficiency of the separator blade group, enhance the processing capacity and optimize the separation accuracy; by setting a reasonable gap between adjacent discs, the accumulation and blockage of liquid between the discs can be reduced, promoting the smooth flow of liquid during centrifugation, thereby improving the separation effect.

[0036] Optionally, the interior of the rotating shaft is provided with a first flow channel and a second flow channel separated axially. The two ends of the rotating shaft are respectively provided with a first water port and a second water port. The first flow channel, the first water port and the clean water port are communicated, and the second flow channel, the second water port and the sewage port are communicated.

[0037] In the above structure, by providing a separated first flow channel and second flow channel inside the rotating shaft, it is beneficial that in the separation mode, the dirt enters from the sewage port, passes through the second flow channel and the second water port on the rotating shaft and enters the separation chamber. The separated filtrate passes through the first flow channel and the first water port on the rotating shaft and then is discharged from the clean water port; the first flow channel and the second flow channel in the rotating shaft provide channels for the liquid to flow through.

[0038] Optionally, a plurality of water passing holes are axially provided at the position where the separator blade group is installed on the rotating shaft, and each water passing hole communicates the corresponding disc flow channel with the first flow channel.

[0039] In the above structure, in the separation mode, through a plurality of water passing ports provided on the rotating shaft, the separated filtrate can enter the rotating shaft through the plurality of water passing ports and flow from the first flow channel inside the rotating shaft to the clear water port for discharge; in the self-cleaning mode, through the plurality of water passing ports provided on the rotating shaft, the cleaning medium enters the first flow channel of the rotating shaft and flows into the separation chamber through the plurality of water passing ports, so as to clean the inside of the separation chamber.

[0040] Optionally, rotating members are provided between both ends of the rotating shaft and the housing assembly, and rotary seals are provided between both ends of the rotating shaft and the housing assembly, as well as between both ends of the rotating shaft and the separation chamber.

[0041] In the above structure, by providing rotating members between the rotating shaft and the housing assembly to support the rotation of the rotating shaft and reduce the friction and resistance during its rotation, it helps to ensure the smooth rotation of the rotating shaft, improve the operation stability and reliability of the equipment, and reduce noise and vibration; by providing rotary seals, it plays a role in preventing leakage and ensures that during high-speed rotation, the liquid will not leak from the gaps between the rotating shaft and the housing assembly or the separation chamber.

[0042] Optionally, the separation chamber includes a water inlet chamber and a water outlet chamber that are detachably connected, and a water chamber space for accommodating the separation plate group is formed between the water inlet chamber and the water outlet chamber.

[0043] In the above structure, the water inlet chamber and the water outlet chamber are detachably connected, and this design makes the maintenance of the equipment more convenient. When it is necessary to clean, repair or replace the separation plate group, the water inlet chamber and the water outlet chamber can be easily separated without disassembling the entire equipment, which is conducive to the replacement and repair of each component.

[0044] Optionally, a first connection portion is provided at the top of the water inlet chamber, a second connection portion is provided at the bottom of the water outlet chamber, and one-way rotation limiting members are provided between both the first connection portion and the second connection portion and the rotating shaft.

[0045] In the above structure, through the design of the one-way rotation limiting members, it is ensured that the entire separation chamber can only rotate in a predetermined direction. Thus, in the separation mode, by driving the rotating shaft to rotate in the first direction through a driving member, the separation chamber and the separation plate group rotate synchronously; in the self-cleaning mode, by driving the rotating shaft to rotate in the second direction through a driving member, due to the limitation of the one-way rotation limiting members, the separation chamber does not rotate, and only the separation plate group rotates in the second direction, playing a role in cleaning the separation chamber and the separation plate group.

[0046] Optionally, a first threaded portion is provided on the inner wall of the water inlet chamber, a second threaded portion is provided on the outer wall of the water outlet chamber, and the first threaded portion and the second threaded portion are cooperatively connected.

[0047] With the above structure, by setting the first threaded part and the second threaded part, it is beneficial to the quick installation and disassembly of the upper water chamber and the lower water chamber, providing convenience for assembly; through the tight engagement of the threads, a high-strength connection between the upper water chamber and the lower water chamber is achieved, which not only ensures the stability of the connection but also improves the sealing performance.

[0048] Optionally, the upper water chamber includes a connected upper water chamber conical part and an upper water chamber connecting part. The upper water chamber conical part has a conical structure with an inner diameter gradually increasing from top to bottom and is adapted to the separation plate group.

[0049] With the above structure, the structure of the upper water chamber conical part optimizes the flow of dirt during the separation process, reduces the flow resistance, and improves the separation efficiency; moreover, the upper water chamber conical part is adapted to the separation plate group, ensuring that the dirt can be evenly distributed when passing through the separation plate group, reducing dead angles and blockage phenomena, thereby further enhancing the separation performance.

[0050] Optionally, the lower water chamber includes a connected lower water chamber connecting part and a lower water chamber conical part. The lower water chamber connecting part is cooperatively connected with the upper water chamber connecting part, and the lower water chamber conical part has a conical structure with an inner diameter gradually decreasing.

[0051] With the above structure, through the cooperative connection between the lower water chamber connecting part and the upper water chamber connecting part, the connection reliability between the upper water chamber and the lower water chamber is ensured; during high-speed rotation, the upper water chamber and the lower water chamber can work together as a whole, reducing the possibility of vibration and displacement. The design of the lower water chamber conical part helps the smooth flow of the liquid, and can generate a stronger centrifugal force during rotation, which is beneficial to improving the separation efficiency and effect.

[0052] Optionally, the housing assembly includes a detachably connected upper housing and a lower housing, and the accommodation cavity is formed between the upper housing and the lower housing.

[0053] With the above structure, by setting the detachable upper housing and lower housing, it is beneficial to the quick disassembly and assembly of the housing assembly, greatly simplifying the maintenance process; it is convenient for the disassembly and assembly of the separation unit inside the accommodation cavity, which is beneficial to subsequent maintenance and replacement.

[0054] Optionally, an upper housing mounting hole is provided at the bottom of the upper housing, a lower housing mounting hole is provided at the top of the lower housing, and the upper housing mounting hole and the lower housing mounting hole are cooperatively connected through fasteners.

[0055] With the above structure, by setting the mutually cooperating upper housing mounting hole and lower housing mounting hole, it is beneficial to the precise docking and stable connection of the upper housing and the lower housing, simplifies the installation and disassembly process, and is convenient for maintenance and repair.

[0056] Optionally, the upper housing includes a connected upper housing mounting portion, an upper housing conical portion, and an upper housing connection portion. The top end of the upper housing mounting portion has a mounting groove for mounting the driving member, and the upper housing conical portion is adapted to the upper water chamber.

[0057] In the above structure, by providing the mounting groove, it is beneficial for quickly installing the driving member and connecting it to the upper housing, and simplifies the assembly process of the driving member and the upper housing; by making the upper housing conical portion adapted to the upper water chamber, it is beneficial to ensure the rotation space of the upper water chamber.

[0058] Optionally, the lower housing includes a connected lower housing connection portion and a lower housing support portion. The lower housing connection portion is cooperatively connected with the upper housing connection portion, and the lower housing connection portion is adapted to the lower water chamber.

[0059] In the above structure, the cooperative connection between the lower housing connection portion and the upper housing connection portion ensures the stability of the entire housing assembly and simplifies the assembly process of the housing assembly; by making the lower housing connection portion adapted to the lower water chamber, it is beneficial to ensure the rotation space of the lower water chamber; by providing the lower housing support portion, it plays a role in supporting the entire housing assembly.

[0060] Optionally, the surface cleaning device further includes a dirt sensor. The dirt sensor is disposed between the dirt recovery portion and the channel of the dirt separation device to detect the viscosity of the dirt, and the rotation speed of the driving member is adjusted according to the detection result of the dirt sensor.

[0061] In the above structure, since the cleaning conditions are different each time, the dirt conditions to be separated are different. A dirt sensor is provided on the path of the channel from the dirt recovery portion to the dirt separation device to detect and indicate the difference in dirt viscosity, so as to realize that the dirt separation device dynamically adjusts the rotation speed of the driving member each time in response to different cleaning conditions, so as to achieve the effect of noise reduction and energy saving.

[0062] Based on the same concept, the present invention further provides a cleaning system, including the surface cleaning device as described above.

[0063] In the above structure, by using the cleaning system of the above surface cleaning device, the dry and wet garbage in the dirt can be separated, which is beneficial to meet the use requirements during subsequent recycling and is beneficial to the cleaning operation.

[0064] As described above, the present invention has the following beneficial effects:

[0065] By setting up a dirt separation device connected to the dirt recycling section to separate the dirt collected by the dirt recycling section, the dirt entering the separation chamber can be quickly separated into filtrate and stains under the rotational cooperation of the separation plate group and the separation chamber by the dirt separation device, separating the wet and dry garbage in the dirt, and small dry garbage particles and even some soluble substances can be separated, avoiding the occurrence of abnormal colors and odors during subsequent recycling; further, the dirt separation device adopts a self-cleaning mode, the separation chamber is stationary, and the rotation of the separation plate group drives the cleaning medium to self-clean the separation unit, facilitating equipment maintenance. Brief Description of the Drawings

[0066] Figure 1 Schematic diagram of the dirt separation device according to an embodiment of the present invention;

[0067] Figure 2 Exploded view of the dirt separation device according to an embodiment of the present invention;

[0068] Figure 3 Cross-sectional view of the dirt separation device according to an embodiment of the present invention;

[0069] Figure 4 Schematic diagram of the assembly structure of the separation plate group and the rotating shaft in an embodiment of the present invention;

[0070] Figure 5 Exploded view of the structure of the separation plate group and the rotating shaft in an embodiment of the present invention;

[0071] Figure 6 Schematic diagram of a single disc in an embodiment of the present invention;

[0072] Figure 7 Top view of a single disc in an embodiment of the present invention;

[0073] Figure 8 A-A cross-sectional view of a single disc in an embodiment of the present invention.

[0074] Description of the Reference Numerals

[0075] 10 - Housing assembly; 101 - Accommodation cavity;

[0076] 11 - Upper housing; 11a - Upper housing mounting part; 11b - Upper housing conical part; 11c - Upper housing connecting part; 111 - Clean water port; 112 - Upper housing mounting hole; 113 - Mounting groove;

[0077] 12 - Lower housing; 12a - Lower housing connecting part; 12b - Lower housing support part; 121 - Sewage port; 122 - Lower housing mounting hole;

[0078] 20 - Separation chamber;

[0079] 21 - Upper water chamber; 21a - Conical part of the upper water chamber; 21b - Connecting part of the upper water chamber; 211 - First connecting part;

[0080] 22 - Lower water chamber; 22a - Connecting part of the lower water chamber; 22b - Conical part of the lower water chamber; 221 - Second connecting part;

[0081] 30 - Separation plate group; 31 - Disc; 311 - Separation hole; 312 - Isolation protrusion; 313 - Disc mounting hole; 32 - Disc flow channel;

[0082] 40 - Rotating shaft; 41 - First flow channel; 42 - Second flow channel; 43 - First water inlet; 44 - Second water inlet; 45 - Water passing hole; 46 - Rotary seal; 47 - Rotating part;

[0083] 50 - One - way rotation limiting part;

[0084] 60 - Driving part. Detailed implementation mode

[0085] The following specific embodiments illustrate the implementation mode of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation modes. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model.

[0086] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope for the implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope in which the present utility model can be implemented.

[0087] In order to be able to describe the present utility model in detail, the surface cleaning device of the present utility model will be specifically described next:

[0088] Please refer to Figures 1 to 3As shown in the figure, the present utility model provides a surface cleaning device, including: a main body device (not shown in the figure), which includes a cleaning medium accommodating part and a dirt recycling part, where: the cleaning medium accommodating part is used for storing the cleaning medium required for the surface cleaning process; the dirt recycling part is used for recycling the dirt generated during the surface cleaning process; a dirt separation device is communicated with the dirt recycling part and is used for separating the dirt in the dirt recycling part. The dirt separation device includes: a housing assembly 10, a separation unit, and a driving member 60. Among them, an accommodating cavity 101 is provided inside the housing assembly 10; the separation unit is located in the accommodating cavity 101 and includes a separation chamber 20, a separation blade group 30, and a rotating shaft 40. The separation blade group 30 is located in the separation chamber 20 and is connected to the rotating shaft 40, and at least part of the rotating shaft 40 extends out of the separation chamber 20; the driving member 60 is arranged on the housing assembly 10 and is used for driving the rotating shaft 40 to rotate in a first direction or a second direction, and the first direction is opposite to the second direction.

[0089] Specifically, the surface cleaning device includes a main body device and a dirt separation device. The main body device includes a cleaning medium accommodating part and a dirt recycling part. The dirt separation device is communicated with the dirt recycling part and is used for separating the dirt in the dirt recycling part. The accommodating cavity 101 is used for accommodating and protecting the separation unit and the driving member 60; the separation chamber 20 is used for providing a space for the dirt to enter and accumulate, and cooperates with the separation blade group 30 to achieve efficient solid-liquid separation; the separation blade group 30 is rotatably arranged inside the separation chamber 20, and uses the centrifugal force to separate the filtrate and stains in the dirt; the rotating shaft 40 connects the driving member 60 and the separation unit to ensure the stability and reliability of power transmission. At the same time, a flow channel for transmitting liquid is provided inside the rotating shaft 40. The driving member 60 is used for providing power for the separation unit, and by precisely controlling the rotation speed and rotation direction of the driving member 60, the working state of the separation unit can be accurately adjusted.

[0090] The dirt collected by the dirt collection unit is injected into the separation chamber 20. By using the cooperation between the separation blade group 30 and the separation chamber 20, in the separation mode, the dirt entering the separation chamber 20 from the dirt collection unit is mixed with stains (solid waste) and liquid waste (filtrate) of different densities. Since solid particles and liquids have different densities, generally, the density of solid particles is greater than that of liquids. The mixing of the dirt is based on the density difference between solid particles and liquids, and the centrifugal force generated by high-speed rotation separates the solid particles from the liquid. By rotating the driving member 60 in the first direction, the separation blade group 30 is driven to rotate synchronously at a high speed with the separation chamber 20, further driving the dirt entering the separation chamber 20 to rotate at a high speed along with the entire separation blade group 30 and the separation chamber 20. Under the centrifugal action, according to the density difference of each substance, substances of different densities will be separated, so that the filtrate and stains can be quickly separated. When the dirt rotates at a high speed centrifugally, it will first adhere to the inner wall of the separation blade group 30, and then with the continuous high-speed centrifugal rotation, due to the density difference of the dirt, the filtrate with a relatively lower density flows upward along the separation blade group 30 towards the axis of the rotating shaft 40, while the stains containing heavier solid waste are thrown downward along the separation blade group 30 to the inner wall of the separation chamber 20 due to their relatively larger density, separating the dry and wet garbage in the dirt for recycling by cleaning equipment (such as a floor washer). Thus, by providing a dirt separation device connected to the dirt collection unit to separate the dirt collected by the dirt collection unit through high-speed rotation, under the centrifugal action, according to the density difference of each substance, substances of different densities will be separated, so that the dirt entering the separation chamber 20 can quickly separate the filtrate and stains under the rotational cooperation of the separation blade group 30 and the separation chamber 20, separate the dry and wet garbage in the dirt, and can also separate fine dry garbage particles and even some soluble substances, avoiding situations such as abnormal colors and odors during subsequent recycling use.

[0091] The above design of the separation blade group 30 can achieve high-speed and effective physical separation of the filtrate and stains, significantly improving the processing efficiency. However, during the applicant's in-depth actual application testing process, after multiple consecutive centrifugal separation operations, some stains that could not be completely discharged gradually accumulated and deposited in the bottom area of the centrifugal device. This phenomenon not only affected the continuous separation performance of the equipment but also gave rise to new cleaning and maintenance problems. Specifically, since the separation blade group 30 is arranged in the internal structure of the dirt separation device, although this design optimizes the separation effect, it limits the possibility for users to directly clean it conveniently. This not only increases the complexity and difficulty of daily maintenance but may also lead to long-term accumulation of stains, thereby affecting the overall performance and service life of the equipment. In order to improve the separation efficiency, the gap between the separation blade groups 30 is designed to be relatively narrow, making it difficult for traditional cleaning tools such as brushes to effectively reach into these narrow spaces to deeply clean the separation blade group.

[0092] Based on this, to solve the problem of effective cleaning and maintenance, the applicant further designed a structure with a dual mode of centrifugal separation + self-cleaning. A one-way rotation limiting member 50 is provided between the rotating shaft 40 and the separation chamber 20 to limit the one-way synchronous movement of the separation chamber 20 with the rotating shaft 40; the dirt separation device has a separation mode and a self-cleaning mode. In the separation mode, the driving member 60 drives the rotating shaft 40 to rotate in the first direction, and the separation blade group 30 and the separation chamber 20 rotate synchronously with the rotating shaft 40, so that the dirt entering the separation chamber 20 is separated into filtrate and stains under the combined action of the separation blade group 30 and the separation chamber 20; in the self-cleaning mode, the driving member 60 drives the rotating shaft 40 to rotate in the second direction, the one-way rotation limiting member 50 keeps the separation chamber 20 stationary, and the separation blade group 30 rotates synchronously with the rotating shaft 40, so that the cleaning medium entering the separation chamber 20 cleans the separation unit under the action of the separation blade group 30.

[0093] In the self-cleaning mode, in order to clean the solid stains remaining on the inner wall of the separation chamber 20 during the operation of the separation mode, a cleaning structure needs to be introduced to clean and maintain the inner wall of the separation chamber 20. In the present utility model, in the self-cleaning mode, the driving member 60 rotates in the second direction to realize the reverse rotation of the separation blade group 30, and the separation chamber 20 remains stationary. Only the separation blade group 30 is driven to rotate in the second direction. At this time, the speed difference between the separation blade group 30 and the separation chamber 20 reaches the maximum, so that the scouring effect of the cleaning medium entering the separation chamber 20 on the inner wall of the separation chamber 20 can be maximally exerted. The rotation of the separation blade group 30 generates a strong stirring effect inside the separation chamber 20. This stirring not only promotes the uniform distribution of the cleaning medium, but also throws the cleaning medium to all corners of the separation chamber 20, especially those areas that are difficult to reach, that is, under the rotation and stirring action of the separation blade group 30, the cleaning medium entering the separation chamber 20 rotates at a high speed inside the separation chamber 20. These cleaning media form a powerful scouring force inside the separation chamber 20. The cleaning medium rotating at a high speed impacts the inner wall of the separation chamber 20, generating a strong scouring effect, powerfully cleaning the inner wall of the separation chamber 20. This scouring effect can effectively remove the dirt and residues attached to the inner wall, thereby realizing internal self-cleaning and facilitating equipment maintenance.

[0094] In order to enable the same drive shaft to satisfy two modes, that is, it can drive the separation chamber 20 and the separation plate group 30 to rotate together in the first direction in the separation mode, and can drive the separation plate group 30 to rotate in the second direction while the separation chamber 20 remains stationary in the self-cleaning mode, a one-way rotation limiting structure is introduced to achieve this functional design. A one-way rotation limiting member 50 is provided between the rotating shaft 40 and the separation chamber 20 to limit the one-way synchronous movement of the separation chamber 20 with the rotating shaft 40. Since the one-way rotation limiting member 50 is provided between the rotating shaft 40 and the separation chamber 20, when the driving member 60 rotates in the first direction, the separation plate group 30 and the separation chamber 20 can rotate together with the rotating shaft 40; when the driving member 60 rotates in the second direction, due to the limitation of the one-way rotation limiting member 50 (that is, it can only rotate in the first direction and cannot rotate in the second direction), the separation chamber 20 does not rotate with the rotating shaft 40, that is, the separation chamber 20 remains stationary, and only the separation plate group 30 rotates with the rotating shaft 40, which is more conducive to the internal self-cleaning effect of the separation chamber 20.

[0095] Refer to Figure 3 , in some embodiments, a clean water inlet 111 is provided at the top of the housing assembly 10, and a sewage outlet 121 is provided at the bottom of the housing assembly 10. In the separation mode, the dirt enters the separation chamber 20 from the sewage outlet 121, and the separated filtrate is discharged from the clean water inlet 111, and the separated stains are thrown to the inner wall of the separation chamber 20; in the self-cleaning mode, the cleaning medium enters the separation chamber 20 from the clean water inlet 111 and is discharged from the sewage outlet 121. Specifically, in the separation mode, the separation chamber 20 and the separation plate group 30 rotate synchronously. After the dirt enters the separation chamber 20 from the sewage outlet 121 at the bottom, it then enters the separation plate group 30 from the bottom for centrifugal separation. The separated filtrate flows towards the axis of the rotating shaft 40 and is discharged from the top clean water inlet 111 through the internal flow channel of the rotating shaft 40, and the stains are thrown to the inner wall of the separation chamber 20; in the self-cleaning mode, the separation chamber 20 remains stationary, the separation plate group 30 rotates in the second direction, the cleaning medium enters the separation chamber 20 from the top clean water inlet 111, and the internal self-cleaning of the separation chamber 20 is achieved by using the rotating and stirring action of the separation plate group 30, and the dirt formed after cleaning is discharged from the sewage outlet 121 at the bottom.

[0096] By arranging the sewage outlet 121 at the bottom of the housing assembly 10 and the clean water outlet 111 at the top of the housing assembly 10, on the one hand, it is to meet the requirements of centrifugal separation, that is, the filtrate after centrifugal separation will flow upward. In the separation mode, the dirty water enters from the sewage outlet 121 at the bottom of the housing assembly 10, and the separated filtrate is discharged from the clean water outlet 111 at the top. Mainly based on the density differences of various substances, substances with different densities will be separated. The stains with a larger specific gravity will flow downward, and the filtrate with a smaller specific gravity will flow upward. Therefore, the clean water outlet 111 needs to be arranged at the top; considering the structural simplification, the sewage outlet 121 is correspondingly arranged at the bottom. On the other hand, in the self-cleaning mode, the cleaning medium enters from the clean water outlet 111 at the top of the housing assembly 10, and internal cleaning is achieved under the agitation of the separation blade group 30. The dirty water after cleaning can be discharged through the sewage outlet 121 at the bottom only by gravity.

[0097] In the above embodiment, the clean water outlet 111 is directly or indirectly connected to the cleaning medium accommodating part of the main machine device, and the sewage outlet 121 is connected to the dirty water recovery part of the main machine device. In this way, the clean water outlet 111 is directly (direct reflux) or indirectly connected (re-filtered) to the cleaning medium accommodating part of the main machine device, which is conducive to the circulation and transmission of the cleaning medium. The separated filtrate can directly flow back to the cleaning medium accommodating part from the clean water outlet 111, or flow to the cleaning medium accommodating part after filtration. The dirty water generated during the surface cleaning process collected by the dirty water recovery part can enter the separation chamber 20 through the sewage outlet 121 for the separation of the dirty water.

[0098] Refer to Figures 3 to 8, in some embodiments, the separation disc group 30 includes a plurality of stacked discs 31. A plurality of disc channels 32 are formed between adjacent discs 31. A plurality of separation holes 311 are formed in each disc 31. The separation holes 311 communicate with the corresponding disc channels 32. The inner side of each disc 31 is surrounded to form a hollow conical structure. Specifically, the separation disc group 30 is formed by stacking a plurality of discs 31. This stacked structure greatly increases the contact area between the dirt and the discs 31, enabling the entire separation disc group 30 to have a high separation capacity and a short separation path, further improving the separation efficiency. A plurality of disc channels 32 arranged circumferentially and extending radially are formed between adjacent discs 31. These disc channels 32 provide a flow path for the dirt, allowing the dirt to fully contact the surface of the discs 31 when flowing through the separation disc group 30, so that the dirt can be more fully dispersed and settled under the action of centrifugal force, thereby realizing solid-liquid separation. The separation holes 311 communicate with the corresponding disc channels 32, and their function is to allow the filtrate (i.e., the separated clear water part) to pass through the discs 31 and flow out from the central area of the separation disc group 30 (the inner flow path of the rotating shaft 40), while the solid stain particles are thrown to the inner wall of the separation chamber 20. The hollow conical structure of the discs 31 not only helps to guide the dirt to form a rotational flow between the discs 31, but also can more effectively push the solid stain particles in the dirt to the outer edge of the discs 31 under the action of centrifugal force, and the filtrate flows out through the rotating shaft 40 in the center of the discs 31, improving the separation efficiency and reducing the flow resistance of the dirt between the discs 31. By the high-speed rotation of the separation disc group 30, under the action of centrifugal force, the dirt enters the corresponding disc channels 32 from the separation holes 311. Driven by the high-speed rotation force, the separated filtrate will flow upward along the disc channels 32 until it is discharged through the clear water outlet 111, and the separated stains will be thrown downward along the disc channels 32 to the inner wall of the separation chamber 20.

[0099] Refer to Figure 5 and Figure 6, in some embodiments, a plurality of isolation protrusions 312 arranged in a spiral pattern are circumferentially provided on the disc 31. The top end of the disc 31 has a platform portion. Each of the isolation protrusions 312 extends from the platform portion of the disc 31 to the bottom, and the top end of the isolation protrusion 312 is connected to the platform portion. Specifically, the isolation protrusions 312 arranged in a spiral pattern can guide the liquid to flow along a specific path when the disc 31 rotates, reduce the liquid resistance, and improve the flow efficiency; the design of the plurality of isolation protrusions 312 can form a plurality of independent partitions on the surface of the disc 31, and then form a plurality of disc flow channels 32, which is beneficial to the centrifugal separation of dirt, so that the filtrate and stains can be separated by using the difference in medium density through the disc flow channels 32; the design that the isolation protrusions 312 extend from the platform portion at the top end of the disc 31 to the bottom ensures the uniform distribution in the entire thickness direction of the disc 31 and improves the stability of the overall structure; the design that the top end of the isolation protrusion 312 is connected to the platform portion helps to increase the contact area, improve the connection reliability of the isolation protrusion 312, and is also beneficial to ensuring the assembly limit between adjacent discs 31.

[0100] Continue to refer to Figure 5 and Figure 6 , it should be noted that the plurality of separation holes 311 are circumferentially provided on the disc 31, and each of the separation holes 311 is located between adjacent isolation protrusions 312. Specifically, by arranging a plurality of separation holes 311 circumferentially on the disc 31, it is beneficial to the balance during the centrifugal separation of dirt. In this embodiment, a circle of separation holes 311 is evenly distributed circumferentially on the disc 31, and one separation hole 311 is provided between adjacent isolation protrusions 312, ensuring that the dirt can uniformly enter the disc flow channels 32 of each disc 31 from the bottom of the disc 31 group. This design avoids the problem of uneven separation caused by excessive or insufficient local feeding, thereby improving the balance of the overall centrifugal separation. By the separation holes 311 being located between adjacent isolation protrusions 312, it is beneficial that after the dirt enters the disc flow channels 32 of each disc 31 from the bottom of the separator plate group 30, it can quickly be affected by the centrifugal force and perform centrifugal separation. The density of the filtrate is smaller and it will move upward and be discharged; the density of the stain is larger and it will move downward and be discharged.

[0101] Refer to Figure 4 and Figure 5, It can be understood that each platform portion of the disc 31 is provided with a disc mounting hole 313, and a plurality of the discs 31 are connected to the rotating shaft 40 through their respective disc mounting holes 313. Specifically, the rotating shaft 40 has a limiting portion, and the disc mounting hole 313 is adapted to the limiting portion, so as to ensure that the disc 31 can be reliably mounted to the rotating shaft 40. In this way, by providing the disc mounting hole 313 on the platform portion of the disc 31, it is convenient to connect the disc 31 to the rotating shaft 40, and the disc 31 is mounted and fitted through the disc mounting hole 313 to ensure that the disc 31 remains stable during high-speed rotation. A plurality of discs 31 are connected to the rotating shaft 40 through their respective disc mounting holes 313 to form an integral separating disc group 30. Power is provided by the rotating shaft 40 to drive the separating disc group 30 to rotate at high speed, thereby generating a centrifugal force to achieve solid-liquid separation.

[0102] Refer to Figure 7 and Figure 8 , Preferably, the maximum radius Rmax of the disc 31 is 40 mm to 90 mm, the minimum radius Rmin of the disc 31 is 8 mm to 20 mm, and the angle α of the apex angle of the longitudinal section of the disc 31 is 30° to 45°. Specifically, the range of the maximum radius Rmax of the disc 31 not only ensures a sufficient centrifugal radius to generate sufficient centrifugal force for efficient separation, but also avoids being limited by the overall external dimensions of the entire device due to excessive size, as well as the possible increase in manufacturing difficulty and cost; moreover, the larger the radius of the disc 31, the greater the moment of inertia, which will lead to an increase in vibration and noise. At the same time, the range of the minimum radius Rmin of the disc 31 takes into account, on the one hand, the strength of the rotating shaft 40 and the limitation of the internal water passage of the rotating shaft 40, and on the other hand, it is necessary to ensure that the disc 31 has a certain thickness and strength to withstand the centrifugal force during high-speed rotation without being easily deformed. The range of the angle α of the apex angle of the longitudinal section of the disc 31 helps to form a stable hydrodynamic environment during rotation. A suitable angle α of the apex angle can guide the liquid to be evenly distributed along the surface of the disc 31, reducing vortex and turbulence phenomena, thereby improving the separation efficiency. The above structure, by setting the reasonable maximum radius Rmax of the disc 31, the minimum radius Rmin of the disc 31, and the angle α of the apex angle of the longitudinal section of the disc 31, is conducive to enabling the separating disc group 30 to achieve a better separation effect within a limited space, helping to improve the separation efficiency, enhance the processing capacity, ensure the stability and balance of the disc 31 group during high-speed rotation, and also help to reduce the vibration and noise generated by the disc 31 during rotation, improving the overall performance of the equipment.

[0103] Refer to Figure 4, in the above embodiment, the rotational angular velocity of the separation disc group 30 is 5000 r / min to 20000 r / min, and the gap L between adjacent discs 31 is 1 mm to 3 mm. Specifically, the range of the rotational angular velocity of the separation disc group 30 can generate a strong centrifugal force, enabling the solid stain particles in the dirt to be pushed more quickly to the outer edge of the disc 31, thus achieving more efficient solid-liquid separation; for the range of the gap L between adjacent discs 31, if it is too small (<1 mm), causing the channel to be too narrow, solid waste is likely to block the disc flow channel 32 during the separation process, and it may also cause wear of the disc 31; if it is too large (>3 mm), turbulence is likely to occur in the internal liquid, affecting the separation effect. Specifically, under the action of centrifugal force, the liquid is pushed to the outer edge of the disc 31 and flows out through the gap between the discs 31. If the gap is too large, the liquid will have more space to accelerate and change direction when flowing through, reducing the stability of the liquid flow and making it more vulnerable to external minute disturbances. Such a sharp change in the flow velocity will lead to an increase in the velocity difference between different parts of the liquid, thereby generating shear force and vortices, thus triggering turbulence; therefore, the gap L between the discs 31 is limited to a suitable range of 1 mm to 3 mm, which not only ensures that the dirt can smoothly pass through the disc flow channel 32 but also avoids the decrease in separation efficiency caused by too large a gap L. In addition, the number of discs 31 determines the flow rate per minute, which can be specifically set according to the processing capacity; the aperture and number of the separation holes 311 can also be set according to the processing capacity. The above structure, by setting a reasonable rotational angular velocity, is conducive to improving the separation efficiency of the separation disc group 30, enhancing the processing capacity, and optimizing the separation accuracy; by setting a reasonable gap L between adjacent discs 31, the accumulation and blockage of the liquid between the discs 31 can be reduced, promoting the smooth flow of the liquid during the centrifugation process, thereby improving the separation effect.

[0104] Refer to Figure 3, in some embodiments, the interior of the rotating shaft 40 is provided with a first flow channel 41 and a second flow channel 42 separated axially. The two ends of the rotating shaft 40 are respectively provided with a first water port 43 and a second water port 44. The first flow channel 41, the first water port 43 and the clean water port 111 are communicated, and the second flow channel 42, the second water port 44 and the sewage port 121 are communicated. Specifically, by arranging the first flow channel 41 and the second flow channel 42 separated axially inside the rotating shaft 40, it is beneficial that in the separation mode, dirt enters from the sewage port 121, passes through the second flow channel 42 and the second water port 44 on the rotating shaft 40 into the separation chamber 20, then enters the separation holes 311 of each disc 31 of the separation disc group 30, and is separated through the disc flow channel 32 of the disc. The separated filtrate passes through the first flow channel 41 and the first water port 43 on the rotating shaft 40 and is discharged from the clean water port 111; among them, the filtrate enters the first flow channel 41 through the disc flow channel 32 and the water passing port 45, and leads to the clean water port 111 through the first water port 43, and the stains are thrown to the inner wall of the separation chamber 20 through the disc flow channel 32. In the self-cleaning mode, the cleaning medium enters from the clean water port 111, enters the first flow channel 41 of the rotating shaft 40 through the first water port 43, then enters the separation disc group 30, is discharged from the disc flow channel 32 between each disc 31 to the separation chamber 20, and passes through the second water port 44 and the second flow channel 42 on the rotating shaft 40 and is discharged from the sewage port 121. With the above structure, the first flow channel 41 and the second flow channel 42 arranged inside the rotating shaft 40 are respectively used for the transmission of clean water and sewage, realizing the physical isolation of the two liquids and avoiding cross-contamination. This design ensures the effective separation of clean water and sewage during the centrifugal separation process and improves the separation efficiency. Designing the two flow channels inside the rotating shaft 40 can effectively avoid the interference and damage of the external environment, and also makes the structure of the whole device more compact. At the same time, it can also be cleaned and maintained through the self-cleaning mode, thereby reducing the maintenance cost of the whole system.

[0105] Continue to refer to Figure 3 and Figure 4, in the above - mentioned embodiment, along the axial direction of the rotation shaft 40 where the separation sheet group 30 is installed, there are a plurality of water passing ports 45. Each of the water passing ports 45 connects the corresponding disc flow channel 32 with the first flow channel 41. Specifically, in the separation mode, through the plurality of water passing ports 45 provided on the rotation shaft 40, the filtrate separated from each disc flow channel 32 of the separation sheet group 30 can enter the rotation shaft 40 via the plurality of water passing ports 45, and flow from the first flow channel 41 inside the rotation shaft 40 to the clear water outlet 111 for discharge; in the self - cleaning mode, through the plurality of water passing ports 45 provided on the rotation shaft 40, the cleaning medium enters the first flow channel 41 of the rotation shaft 40 from the clear water outlet 111 and flows into each disc flow channel 32 of the separation chamber 20 from the plurality of water passing ports 45, which can ensure that the cleaning medium is evenly distributed from the first flow channel 41 to each disc flow channel 32, so as to clean the separation chamber 20 and the separation sheet group 30, and the sewage formed after cleaning is discharged from the sewage outlet 121.

[0106] Refer to Figure 2 and Figure 3 , in some embodiments, between the two ends of the rotation shaft 40 and the housing assembly 10, there are rotating members 47. Between the two ends of the rotation shaft 40 and the housing assembly 10, as well as between the two ends of the rotation shaft 40 and the separation chamber 20, there are rotary seals 46. Specifically, by providing rotating members 47 (the rotating members 47 can be rotating bearings) between the rotation shaft 40 and the housing assembly 10 to support the rotation of the rotation shaft 40 and reduce the friction and resistance during its rotation, it helps to ensure the smooth rotation of the rotation shaft 40, improve the operation stability and reliability of the equipment, and reduce noise and vibration. There are two sets of rotary seals 46 between the rotation shaft 40 and the separation chamber 20, and three sets of rotary seals 46 are provided between the rotation shaft 40 and the housing assembly 10. By providing the rotary seals 46, the function of preventing leakage is achieved, ensuring that during high - speed rotation, the liquid will not leak from the gap between the rotation shaft 40 and the housing assembly 10 or the separation chamber 20.

[0107] In some embodiments, the separation chamber 20 includes a detachable upper water chamber 21 and a lower water chamber 22. A water chamber space for accommodating the separation sheet group 30 is formed between the upper water chamber 21 and the lower water chamber 22. Specifically, the separation chamber 20 is detachably connected, which is convenient for the installation and disassembly of the internal separation sheet group 30. The upper water chamber 21 and the lower water chamber 22 are detachably connected, making the maintenance of the equipment more convenient. When it is necessary to clean, repair or replace the separation sheet group 30, the upper water chamber 21 and the lower water chamber 22 can be easily separated without disassembling the entire equipment, which is beneficial to the replacement and repair of each component.

[0108] Continue to refer to Figure 2 and Figure 3, Understandably, a first connection portion 211 is provided at the top of the water inlet chamber 21, and a second connection portion 221 is provided at the bottom of the water outlet chamber 22. A one-way rotation limiting member 50 is provided between both the first connection portion 211 and the second connection portion 221 and the rotating shaft 40. Among them, the first connection portion 211 and the second connection portion 221 enable the water inlet chamber 21 and the water outlet chamber 22 to be accurately connected to the rotating shaft 40, ensuring the stability and reliability of the connection, and facilitating quick and convenient installation and positioning; the one-way rotation limiting member 50 can be a one-way bearing. The one-way rotation limiting member 50 only allows rotation in the first direction and cannot rotate in the second direction; through the design of the one-way rotation limiting member 50, it is ensured that the entire separation chamber 20 can only rotate in a predetermined direction, so that in the separation mode, the driving member 60 drives the rotating shaft 40 to rotate in the first direction, making the separation chamber 20 and the separation plate group 30 rotate synchronously; in the self-cleaning mode, the driving member 60 drives the rotating shaft 40 to rotate in the second direction. Due to the limitation of the one-way rotation limiting member 50, the separation chamber 20 does not rotate, and only the separation plate group 30 rotates in the second direction, playing a role in cleaning the separation chamber 20 and the separation plate group 30.

[0109] Refer to Figure 2 , In the above embodiment, a first threaded portion is provided on the inner wall of the water inlet chamber 21, and a second threaded portion is provided on the outer wall of the water outlet chamber 22. The first threaded portion is in mating connection with the second threaded portion. In this way, by providing the first threaded portion and the second threaded portion, it is beneficial to the quick installation and disassembly of the water inlet chamber 21 and the water outlet chamber 22, providing convenience for assembly and also facilitating later maintenance; through the tight engagement of the threads, a high-strength connection between the water inlet chamber 21 and the water outlet chamber 22 is achieved, not only ensuring the stability of the connection but also improving the sealing performance.

[0110] Continue to refer to Figure 2 and Figure 3 , In the above embodiment, the water inlet chamber 21 includes a connected water inlet chamber conical portion 21a and a water inlet chamber connection portion 21b. The water inlet chamber conical portion 21a has a conical structure with an inner diameter gradually increasing from top to bottom and is adapted to the separation plate group 30. Among them, the structure of the water inlet chamber conical portion 21a is beneficial to optimizing the flow distribution of the liquid during the separation process, reducing the impact and eddy current of the liquid when entering the separation plate group 30, reducing the flow resistance, and improving the separation efficiency; moreover, the water inlet chamber conical portion 21a is adapted to the separation plate group 30, ensuring that the dirt can be evenly distributed when passing through the separation plate group 30, reducing dead angles and blockage phenomena, thereby further improving the separation performance. The water inlet chamber connection portion 21b is cylindrical, and the first threaded portion is provided on its inner wall, facilitating connection with the water outlet chamber 22.

[0111] Refer to Figure 2 and Figure 3, in the above-described embodiment, the water discharge chamber 22 includes a connected water discharge chamber connection portion 22a and a water discharge chamber conical portion 22b. The water discharge chamber connection portion 22a is cooperatively connected with the water supply chamber connection portion 21b. The water discharge chamber conical portion 22b has a conical structure with a gradually decreasing inner diameter. Among them, the outer wall of the water discharge chamber connection portion 22a is provided with the second threaded portion, which is convenient for connecting with the water supply chamber 21; through the cooperative connection between the water discharge chamber connection portion 22a and the water supply chamber connection portion 21b, the connection reliability between the water supply chamber 21 and the water discharge chamber 22 is ensured; when rotating at high speed, the water supply chamber 21 and the water discharge chamber 22 can work together as a whole, reducing the possibility of vibration and displacement. The design of the water discharge chamber conical portion 22b helps the smooth flow of the liquid, can generate a stronger centrifugal force during the rotation process, and is beneficial to improving the separation efficiency and effect; the conical structure can also effectively control the fluid pressure and avoid excessive pressure fluctuations at the turning or connecting points; in addition, in the self-cleaning mode, due to the gradually decreasing inner diameter of the water discharge chamber conical portion 22b, the flow rate will naturally increase, which helps to improve the flow efficiency of the liquid and is beneficial to improving the cleaning effect on the separation chamber 20.

[0112] Refer to Figure 2 and Figure 3 , in the above-described embodiment, the housing assembly 10 includes a detachably connected upper housing 11 and a lower housing 12, and the accommodation cavity 101 is formed between the upper housing 11 and the lower housing 12. Specifically, the separation unit is located in the accommodation cavity 101, and the housing assembly 10 plays a role in protecting the separation unit. The clean water port 111 is located on the upper housing 11, and the sewage port 121 is located on the lower housing 12. By providing the detachably connected upper housing 11 and lower housing 12, it is beneficial to the quick disassembly and assembly of the housing assembly 10, greatly simplifying the maintenance process; it is convenient for the disassembly and assembly of the separation unit inside the accommodation cavity 101, which is beneficial to subsequent maintenance and replacement.

[0113] Refer to Figure 3 , it can be understood that the bottom of the upper housing 11 is provided with upper housing mounting holes 112, and the top of the lower housing 12 is provided with lower housing mounting holes 122. The upper housing mounting holes 112 and the lower housing mounting holes 122 are cooperatively connected by fasteners. Specifically, a plurality of upper housing mounting holes 112 are provided along the circumference of the upper housing 11, and a plurality of lower housing mounting holes 122 are provided along the circumference of the lower housing 12. The upper housing mounting holes 112 and the lower housing mounting holes 122 correspond to each other and can be connected by fasteners; and the upper housing 11 and the lower housing 12 are mutually snap-connected, which is convenient for positioning. In this way, by providing the mutually cooperating upper housing mounting holes 112 and lower housing mounting holes 122, it is beneficial to the precise docking and stable connection between the upper housing 11 and the lower housing 12, simplifies the installation and disassembly process, and is convenient for maintenance and repair.

[0114] Refer to Figure 2 andFigure 3 In some embodiments, the upper housing 11 includes a connected upper housing mounting portion 11a, an upper housing conical portion 11b, and an upper housing connection portion 11c. The top end of the upper housing mounting portion 11a has a mounting groove 113 for mounting the driving member 60. The upper housing conical portion 11b is adapted to the upper water chamber 21. Specifically, the driving member 60 is installed in the mounting groove 113, and the driving end of the driving member 60 extends into the upper housing 11 and is connected to the rotating shaft 40. By providing the mounting groove 113, it is beneficial to quickly install the driving member 60 and connect it to the upper housing 11, and simplifies the assembly process of the driving member 60 and the upper housing 11; by making the upper housing conical portion 11b adapted to the upper water chamber 21, it is beneficial to ensure the rotation space of the upper water chamber 21; the upper housing connection hole 112 is provided on the outer edge of the upper housing connection portion 11c for connecting to the lower housing 12.

[0115] Continue to refer to Figure 2 and Figure 3 In the above embodiment, the lower housing 12 includes a connected lower housing connection portion 12a and a lower housing support portion 12b. The lower housing connection portion 12a is cooperatively connected to the upper housing connection portion 11c, and the lower housing connection portion 12a is adapted to the lower water chamber 22. Specifically, the lower housing connection hole 122 is provided on the outer edge of the lower housing connection portion 12a for connecting to the upper housing 11. The cooperative connection between the lower housing connection portion 12a and the upper housing connection portion 11c ensures the stability of the entire housing assembly 10 and simplifies the assembly process of the housing assembly 10; by making the lower housing connection portion 12a adapted to the lower water chamber 22, it is beneficial to ensure the rotation space of the lower water chamber 22; by providing the lower housing support portion 12b, it serves to support the entire housing assembly 10.

[0116] In addition, the surface cleaning device further includes a dirt sensor (not shown in the figure). The dirt sensor is disposed between the dirt recovery portion and the channel of the dirt separation device to detect the viscosity of the dirt, and the rotation speed of the driving member 60 is adjusted according to the detection result of the dirt sensor. Specifically, since the cleaning situation is different each time, the dirt to be separated is different. A dirt sensor is provided on the path of the dirt recovery portion leading to the dirt separation device to detect and indicate the difference in dirt viscosity, so as to realize that the dirt separation device dynamically adjusts the rotation speed of the driving member 60 each time in response to different cleaning conditions, so as to achieve the effect of noise reduction and energy saving.

[0117] Based on the same concept, the present utility model also provides a cleaning system, including the surface cleaning device described above. Among them, the surface cleaning device further includes an evaporation dish, and the dirt separation device is located upstream of the water inlet channel of the evaporation dish. In this way, through the cleaning system adopting the above-mentioned surface cleaning device, the collected dirt can be preliminarily screened and separated before entering the evaporation dish, separating the dry and wet garbage in the dirt, so as to facilitate subsequent cooking and condensation in the evaporation dish, avoid the generation of abnormal colors and odors during subsequent cooking, and the adhesion of residues on the inner wall of the evaporation dish, ensure that the quality of the condensed water meets the use requirements, and is conducive to the cleaning operation.

[0118] In summary, for the surface cleaning device and the cleaning system provided by the present utility model, by setting a dirt separation device communicated with the dirt recovery part to separate the dirt collected by the dirt recovery part, and adopting a separation mode by the dirt separation device, the dirt entering the separation chamber 20 can be quickly separated into filtrate and stains under the rotational cooperation of the separation blade group 30 and the separation chamber 20, so that the dirt is preliminarily screened and separated before being put into the evaporation dish, separating the dry and wet garbage in the dirt, and small dry garbage particles and even some soluble substances can be separated, avoiding the generation of abnormal colors and odors during subsequent cooking, and the adhesion of residues on the inner wall of the evaporation dish, which is beneficial to improving the effect of subsequent cooking and condensation in the evaporation dish; by adopting a self-cleaning mode by the dirt separation device, the separation chamber 20 is stationary, and the rotation of the separation blade group 30 drives the cleaning medium for self-cleaning, which is convenient for equipment maintenance.

[0119] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not used to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A surface cleaning device, characterized in that, Comprising: A host device, including a cleaning medium accommodating part and a dirt recycling part, the cleaning medium accommodating part being used for storing the cleaning medium required for the surface cleaning process, and the dirt recycling part being used for recycling the dirt generated during the surface cleaning process; A dirt separation device, communicated with the dirt recycling part, for separating the dirt in the dirt recycling part, the dirt separation device including: A housing assembly, which has an accommodating cavity inside; A separation unit, located in the accommodating cavity, including a separation chamber, a separation plate group and a rotating shaft, the separation plate group being located in the separation chamber and connected to the rotating shaft, and at least part of the rotating shaft extending out of the separation chamber; A driving member, arranged on the housing assembly, for driving the rotating shaft to rotate in a first direction or a second direction, the first direction being opposite to the second direction.

2. The surface cleaning device according to claim 1, characterized in that, It further includes a one-way rotation limiting member, arranged between the rotating shaft and the separation chamber, for limiting the one-way synchronous movement of the separation chamber along with the rotating shaft; the dirt separation device has a separation mode and a self-cleaning mode, In the separation mode, the driving member drives the rotating shaft to rotate in the first direction, and the separation plate group and the separation chamber rotate synchronously along with the rotating shaft, so that the dirt entering the separation chamber is separated into filtrate and stains under the combined action of the separation plate group and the separation chamber; In the self-cleaning mode, the driving member drives the rotating shaft to rotate in the second direction, the one-way rotation limiting member keeps the separation chamber stationary, and the separation plate group rotates synchronously along with the rotating shaft, so that the cleaning medium entering the separation chamber cleans the separation unit under the action of the separation plate group.

3. The surface cleaning device according to claim 2, wherein A clear water inlet is arranged at the top of the housing assembly, and a sewage outlet is arranged at the bottom of the housing assembly. In the separation mode, the dirt enters the separation chamber from the sewage outlet, and the separated filtrate is discharged from the clear water inlet, and the separated stains are thrown to the inner wall of the separation chamber; In the self-cleaning mode, the cleaning medium enters the separation chamber from the clear water inlet and is discharged from the sewage outlet.

4. The surface cleaning device according to claim 3, wherein, The clear water inlet is directly or indirectly communicated with the cleaning medium accommodating part of the host device, and the sewage outlet is communicated with the dirt recycling part of the host device.

5. The surface cleaning device according to claim 3, characterized in that, The separation plate group includes a plurality of stacked discs, and a plurality of disc flow channels are formed between adjacent discs. A plurality of separation holes are formed in each disc, and the separation holes are correspondingly communicated with the disc flow channels. The inner side of each disc is surrounded to form a hollow conical structure.

6. The surface cleaning device according to claim 5, wherein, A plurality of spirally arranged isolation protrusions are arranged on the disc along the circumferential direction. The top end of the disc has a platform part. Each isolation protrusion extends from the platform part of the disc to the bottom, and the top end of the isolation protrusion is connected to the platform part.

7. The surface cleaning device according to claim 6, wherein, A plurality of the separation holes are arranged along the circumferential direction of the disc, and each of the separation holes is located between adjacent isolation protrusions.

8. The surface cleaning device according to claim 6, wherein, A disc mounting hole is formed in the platform part of each disc, and a plurality of discs are connected to the rotating shaft through their respective disc mounting holes.

9. The surface cleaning device according to claim 5, characterized in that The maximum radius of the disc is 40 mm to 90 mm, the minimum radius of the disc is 8 mm to 20 mm, and the angle of the apex angle of the longitudinal section of the disc is 30° to 45°.

10. The surface cleaning device according to claim 5, characterized in that, The rotational angular velocity of the separation disc group is 5000 r / min to 20000 r / min, and the gap between adjacent discs is 1 mm to 3 mm.

11. The surface cleaning device according to claim 5, wherein Inside the rotating shaft, there are a first flow channel and a second flow channel separated axially. At both ends of the rotating shaft, there are a first water port and a second water port respectively. The first flow channel, the first water port, and the clean water port are connected, and the second flow channel, the second water port, and the sewage port are connected.

12. The surface cleaning device according to claim 11, wherein, Along the axial direction, there are a plurality of water passing ports at the position where the separation disc group is installed on the rotating shaft, and each water passing port connects the corresponding disc flow channel with the first flow channel.

13. The surface cleaning device according to claim 1, characterized in that, Between both ends of the rotating shaft and the housing assembly, there are rotating parts, and between both ends of the rotating shaft and the housing assembly, as well as between both ends of the rotating shaft and the separation chamber, there are rotary seals.

14. The surface cleaning device according to claim 2, characterized in that, The separation chamber includes a detachable upper water chamber and a lower water chamber, and a water chamber space for accommodating the separation disc group is formed between the upper water chamber and the lower water chamber.

15. The surface cleaning device according to claim 14, wherein, At the top of the upper water chamber, there is a first connecting part, and at the bottom of the lower water chamber, there is a second connecting part. Between the first connecting part and the second connecting part and the rotating shaft, there are the one-way rotation limiting parts.

16. The surface cleaning device according to claim 14, characterized in that, On the inner wall of the upper water chamber, there is a first thread part, and on the outer wall of the lower water chamber, there is a second thread part, and the first thread part and the second thread part are connected in a matching manner.

17. The surface cleaning device according to claim 14, characterized in that, The upper water chamber includes a connected upper water chamber conical part and an upper water chamber connecting part. The upper water chamber conical part is in a conical structure with an inner diameter gradually increasing from top to bottom and is adapted to the separation disc group.

18. The surface cleaning device according to claim 17, wherein, The lower water chamber includes a connected lower water chamber connecting part and a lower water chamber conical part. The lower water chamber connecting part is connected with the upper water chamber connecting part in a matching manner, and the lower water chamber conical part is in a conical structure with an inner diameter gradually decreasing.

19. The surface cleaning device according to claim 14, characterized in that, The housing assembly includes a detachable upper housing and a lower housing, and an accommodating cavity is formed between the upper housing and the lower housing.

20. The surface cleaning device according to claim 19, characterized in that, At the bottom of the upper housing, there is an upper housing mounting hole, and at the top of the lower housing, there is a lower housing mounting hole. The upper housing mounting hole and the lower housing mounting hole are connected in a matching manner through fasteners.

21. The surface cleaning device according to claim 20, characterized in that, The upper housing includes a connected upper housing mounting part, an upper housing conical part, and an upper housing connecting part. At the top end of the upper housing mounting part, there is a mounting groove for mounting the driving part, and the upper housing conical part is adapted to the upper water chamber.

22. The surface cleaning device according to claim 21, wherein, The lower housing includes a connected lower housing connecting part and a lower housing supporting part. The lower housing connecting part is connected with the upper housing connecting part in a matching manner, and the lower housing connecting part is adapted to the lower water chamber.

23. The surface cleaning device according to claim 1, wherein, The surface cleaning device further includes a dirt sensor, which is arranged between the dirt recovery part and the channel of the dirt separation device to detect the viscosity of the dirt, and the rotation speed of the driving part is adjusted according to the detection result of the dirt sensor.

24. A cleaning system, characterized in that, Including the surface cleaning device according to any one of claims 1 - 23.

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