Sewage tank and cleaning equipment

Abstract

The utility model relates to the technical field of cleaning equipment, and provides a sewage tank and cleaning equipment, a water-gas separation device comprises a driving motor, a mounting bracket and a rotating separation part, the driving motor is mounted on the mounting bracket, and the rotating separation part sleeves the driving motor and extends to the mounting bracket. An annular groove is formed in the face, facing the rotary separating piece, of the installation support, and an opening is formed in the outer side wall of the groove. A scraping piece matched with the groove is arranged on the face, facing the mounting support, of the rotary separating piece and used for scraping dirt in the groove and discharging the dirt from the opening when the rotary separating piece rotates. The water-gas separation device provided by the utility model can effectively reduce or avoid the blockage of the rotating separation piece, and the reliability and stability of the overall movement of the water-gas separation device are effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and particularly relates to a sewage tank and a cleaning equipment. Background Art

[0002] With the development of technology and the improvement of people's living quality, cleaning equipment is more and more widely used in people's lives. Taking a floor washer as an example, a floor washer can assist people in cleaning the floor, effectively reducing the burden of manual labor, thus effectively reducing people's housework burden and improving people's quality of life.

[0003] Cleaning equipment usually includes a sewage tank. A water-gas separation device is provided in the sewage tank. The water-gas separation device includes an impeller separation member and a driving motor. The impeller separation member is connected to the driving motor. The driving motor can drive the impeller to rotate to achieve water-gas separation. Among them, during the cooperation between the impeller and the driving motor, there is a fitting gap between the impeller and the fixed bracket. During the long-term operation of the water-gas separation device, solid stains will enter and accumulate in the fitting gap. The accumulated stains will affect the normal rotation of the impeller, cause the impeller to get stuck, and even cause the water-gas separation device to fail. Summary of the Utility Model

[0004] The present application provides a sewage tank and a cleaning equipment, which can effectively reduce or avoid the impeller separation member from getting stuck, and effectively improve the reliability and stability of the overall movement of the water-gas separation device.

[0005] One aspect of the present application provides a sewage tank of a cleaning equipment, including: a box body and a water-gas separation device. The box body has a sewage storage cavity, and the water-gas separation device is communicated with the sewage storage cavity; an air suction port and a sewage inlet are provided on the box body. The air suction port is used to evacuate the gas in the sewage storage cavity to form a negative pressure environment in the sewage storage cavity. The sewage inlet is configured to suck the dirt during the cleaning process of the cleaning equipment into the sewage storage cavity under the action of a pressure difference; the water-gas separation device is arranged on the air suction path of the air suction port, so that the fluid entering the air suction port needs to pass through the water-gas separation device;

[0006] The water-gas separation device includes a driving motor, a mounting bracket and a rotating separation member. The driving motor is mounted on the mounting bracket; the rotating separation member is sleeved on the driving motor and extends to the mounting bracket. The rotating separation member is in transmission connection with the driving motor and rotates on its own on the mounting bracket under the action of the driving motor;

[0007] A circular groove is provided on one side of the mounting bracket facing the rotating separation member, and the groove is arranged close to the outer periphery of the rotating separation member. An opening is provided on the outer side wall of the groove;

[0008] One side of the rotating separation member facing the mounting bracket is provided with a scraping blade that cooperates with the groove. The scraping blade is located within the groove and is used to scrape off dirt within the groove when the rotating separation member rotates and discharge the dirt from the opening.

[0009] Since the rotating separation member in the water-vapor separation device rotates relative to the mounting bracket, a certain rotational clearance, i.e., a fitting clearance, will be retained due to the rotation when the rotating separation member is installed on the mounting bracket. Since the interior of the rotating separation member is connected to the negative pressure source, part of the water-air flow outside the rotating separation member will flow through the above-mentioned rotational clearance; currently, water-vapor separation devices are generally used in fields such as air dehumidification. The separated water generally does not contain solid micro-impurities, and the water accumulated in the rotational clearance will not cause the rotating separation member to be stuck, and there is basically no technical problem of the rotating separation member being stuck due to impurity accumulation; while the water-vapor separation device in this application is applied in the cleaning field, especially in the part of the sewage recovery system. The dirty liquid contains a large amount of solid impurities, and the water-air flow will entrain a lot of dirt. The dirt is likely to accumulate here when passing through the rotational clearance. The long-term accumulation makes the rotational clearance easily blocked, and then the rotating separation member cannot rotate relative to the mounting bracket, resulting in the failure of the water-vapor separation device and posing a greater risk of water ingress to the high-speed motor connected to the suction port. In the water-vapor separation device in the non-cleaning field, since it does not involve sewage suction, the above problems do not exist. It is difficult to present the technical problem of the rotating separation member being stuck in the cleaning field, nor is there a relevant improvement motivation.

[0010] Therefore, based on the above technical problems, in the embodiments of the present application, the rotation gap is cleaned in real time. An annular groove is provided on the surface of the mounting bracket facing the rotating separation member, and a scraping blade is provided on the surface of the rotating separation member facing the mounting bracket. When the rotating separation member rotates, the scraping blade can scrape off the dirt in the groove and discharge it from the opening outside the groove to prevent the rotation gap from being stuck. Among them, the fitting gap formed by the groove and the scraping blade is located on the outermost side. The external water and air flow are most likely to accumulate dirt and settle when just entering the rotation gap here. This place is the easiest to be stuck in the rotation gap. When the scraping blade rotates driven by the rotating separation member, it can scrape off the accumulated dirt in the groove and push the dirt to move together in the groove, that is, the dirt rotates around the mounting bracket together with the scraping blade. The dirt will generate centrifugal force during the circumferential rotation with the scraping blade. When the dirt rotates with the scraping blade to the opening outside the groove, the dirt will be thrown out of the groove through this opening under the action of centrifugal force and finally fall to the bottom of the sewage tank. In this way, the accumulation of dirt in the groove can be effectively reduced, thereby reducing the dirt in the fitting gap between the rotating separation member and the mounting bracket, reducing or avoiding the situation that the rotating separation member is stuck due to the accumulation of dirt between the rotating separation member and the mounting bracket, helping to improve the reliability and stability of the rotation of the rotating separation member, thus effectively improving the reliability and stability of the overall movement of the water-air separation device and extending the service life of the water-air separation device; and, the dirt accumulated in the fitting gap is cleaned in time, which can prevent mildew and odor here due to the accumulation of dirt, improve the cleanliness of the sewage tank while further enhancing the user experience.

[0011] In a possible implementation manner, the mounting bracket includes a first substrate, and an annular first retaining ring and a second retaining ring are provided around the surface of the first substrate facing the rotating separation member;

[0012] The first retaining ring is disposed outside the second retaining ring, and the first retaining ring and the second retaining ring are spaced apart. The groove is formed between the first retaining ring and the second retaining ring, and the opening is formed on the first retaining ring.

[0013] This can make the opening located outside the groove. When the scraping blade moves in the groove, it can scrape off the dirt in the groove and push the dirt to move together with the scraping blade. When the dirt moves with the scraping blade to the opening at the first retaining ring, it can be discharged through the opening located outside the groove so that the dirt falls into the sewage chamber of the sewage tank.

[0014] In a possible implementation manner, the rotating separation member includes a second substrate, a plurality of first separation grids and a plurality of the scraping blades;

[0015] The second substrate is disposed opposite to the first substrate;

[0016] A plurality of the first separation grids are all located on the side of the second substrate facing away from the first substrate, and the plurality of the first separation grids are spaced apart and surround the second substrate;

[0017] A plurality of the scraping blades are located on the side of the second substrate facing the first substrate.

[0018] During the process of the driving motor driving the rotating separator to rotate, the rotating separator can drive the scraping blades on the second substrate to rotate together. Moreover, since the scraping blades are located on the side of the second substrate facing the first substrate, the scraping blades can extend into the grooves on the first substrate to scrape the dirt in the grooves, thereby effectively reducing and avoiding the accumulation of dirt in the grooves, preventing the rotation of the rotating separator from jamming, and effectively improving the reliability and stability of the operation of the rotating separator.

[0019] In a possible implementation manner, the first retaining ring includes a connected main body portion and a guiding portion;

[0020] The main body portion is arc-shaped. The two ends of the main body portion are denoted as the first end and the second end, and the two ends of the guiding portion are denoted as the third end and the fourth end;

[0021] The third end of the guiding portion is connected to the first end of the main body portion, and an opening is formed between the fourth end of the guiding portion and the second end of the main body portion;

[0022] The fourth end of the guiding portion deviates in a direction away from the second retaining ring.

[0023] When the scraping blade rotates in the groove, it can scrape the dirt in the groove to rotate together in the groove, and the rotating dirt has centrifugal force. When the dirt moves to the opening of the groove, the dirt can move in a direction away from the groove under the guiding action of the guiding portion, and is thrown out of the groove under the action of centrifugal force. In this way, it can effectively reduce or avoid the jamming of dirt at the opening, enable the dirt to be smoothly thrown out to the sewage cavity at the opening, effectively reduce the residue of dirt in the groove, and thus effectively improve the cleaning efficiency of the dirt in the groove.

[0024] In a possible implementation manner, the extending direction of the guiding portion is tangent to the first end of the main body portion.

[0025] By making the guiding portion tangent to the first end of the main body portion, the fourth end of the guiding portion can be offset in a direction away from the groove to smoothly guide the dirt in the groove out of the groove. Moreover, by making the guiding portion tangent to the first end of the main body portion, the connection between the guiding portion and the main body portion can be made smoother, reducing or avoiding the occurrence of dead corners at the connection between the guiding portion and the main body portion, thereby preventing the accumulation of dirt at the dead corners and facilitating the cleaning of the connection between the guiding portion and the main body portion.

[0026] In addition, it is also possible to reduce or avoid stress concentration and other situations caused by an included angle at the connection between the diversion part and the main body part, which helps to improve the reliability and stability of the connection between the diversion part and the main body part.

[0027] In a possible implementation manner, the rotation separation member rotates in the order direction of the second end, the first end, and the third end.

[0028] In this way, when the rotation separation member rotates along the rotation direction, the dirt in the groove can be pushed by the scraping blade to rotate in the groove along the rotation direction together. When the dirt rotates to the diversion part, it can be thrown out towards the bottom direction of the sewage tank under the guiding action of the diversion part, so as to fall into the sewage cavity at the bottom.

[0029] In a possible implementation manner, the distance between the scraping blade and the first retaining ring is d 1 , and the 1 value of d

[0030] This distance can prevent the scraping blade from rubbing against the inner wall of the groove due to being too close to the first retaining ring, and can prevent the scraping blade from rubbing against the first retaining ring, which may affect the normal rotation of the scraping blade, and helps to improve the smoothness of the rotation of the scraping blade.

[0031] Moreover, the above distance can also prevent the scraping blade from being too far away from the first retaining ring, which may affect the scraping effect of the scraping blade on the dirt in the groove, and can enable the scraping blade to effectively scrape the dirt in the groove, and can effectively improve the cleaning effect of the scraping blade on the dirt in the groove.

[0032] The distance between the scraping blade and the second retaining ring is d 2 , and the 2 value of d

[0033] This distance can prevent the scraping blade from rubbing against the inner wall of the groove due to being too close to the second retaining ring, and can prevent the scraping blade from rubbing against the second retaining ring, which may affect the normal rotation of the scraping blade, and helps to improve the smoothness of the rotation of the scraping blade.

[0034] Moreover, the above distance can also prevent the scraping blade from being too far away from the second retaining ring, which may affect the scraping effect of the scraping blade on the dirt in the groove, and can enable the scraping blade to effectively scrape the dirt in the groove, and can effectively improve the cleaning effect of the scraping blade on the dirt in the groove.

[0035] In a possible implementation manner, the distance between the second substrate and the first retaining ring is d 3 , and the 3 value of d

[0036] This distance can facilitate the entry of dirt around the outside of the groove into the groove, so that the wiper can scrape the dirt that has entered the groove, thereby cleaning the dirt around the rotating separation member.

[0037] The distance between the top of the wiper and the bottom of the groove is d 4 , and the d 4 ranges from 0.7 mm to 1 mm.

[0038] This distance can make the distance between the wiper and the bottom of the groove more reasonable, avoiding friction between the wiper and the bottom wall of the groove due to too close a distance, preventing friction between the wiper and the bottom of the groove from affecting the normal rotation of the wiper, and helping to improve the smoothness of the wiper rotation.

[0039] Moreover, the above distance can also avoid the distance between the wiper and the bottom wall of the groove being too far, which affects the scraping effect of the wiper on the dirt in the groove, enabling the wiper to effectively scrape the dirt in the groove and effectively improving the cleaning effect of the wiper on the dirt in the groove.

[0040] In a possible implementation, the width of the opening is W 1 , and the width of the groove is W 2 , and the ratio of the W 1 to the W 2 is 0.5 to 1.

[0041] The above width ratio can improve the rationality of the opening width, enabling the dirt in the groove to smoothly discharge from the opening under the scraping of the wiper, effectively reducing or avoiding jamming of the dirt at the opening, and effectively improving the stability of the dirt discharge.

[0042] In a possible implementation, the rotating separation member further includes a third retaining ring;

[0043] The third retaining ring surrounds the side of the second substrate facing the first substrate, and the third retaining ring is located on the side of the wiper facing the center of the rotating separation member;

[0044] The second retaining ring is located between the third retaining ring and the wiper.

[0045] The third retaining ring can block moisture and gas, reducing or avoiding the entry of moisture and gas into the drive motor and the negative pressure source, and helping to improve the protection of the drive motor and the negative pressure source.

[0046] Moreover, a maze structure can be formed between the second retaining ring, the third retaining ring and the scraper blade, which can weaken the negative pressure suction at the maze structure, reduce or avoid excessive negative pressure suction at the maze structure that causes a large amount of dirt to be sucked into the groove, and reduce the load on the scraper blade to remove dirt in the groove, helping to improve the scraper blade's cleaning effect on dirt in the groove.

[0047] In a possible implementation, the mounting bracket further includes a fourth retaining ring;

[0048] The fourth retaining ring is located on a side of the first substrate facing the rotating separating element, and the fourth retaining ring is located on a side of the second retaining ring facing away from the first retaining ring;

[0049] The third retaining ring is located between the fourth retaining ring and the second retaining ring.

[0050] The fourth retaining ring can block water vapor, thereby reducing or preventing water vapor from entering the drive motor and the negative pressure source, thereby helping to improve the protection of the drive motor and the negative pressure source.

[0051] In one possible implementation, the first retaining ring, the scraper, the second retaining ring, the third retaining ring and the fourth retaining ring are interlaced in sequence between the first substrate and the second substrate to form a labyrinth-type air inlet channel, and the labyrinth-type air inlet channel is used to precipitate water vapor, and the input end of the labyrinth-type air inlet channel leads to the outside of the rotating separation element, and the output end thereof leads to the inside of the rotating separation element.

[0052] This can weaken the negative pressure suction at the maze structure, reduce or avoid excessive negative pressure suction at the maze structure that causes a large amount of dirt to be sucked into the groove, reduce the load of the scraper in the groove, and help improve the scraper's cleaning effect on dirt in the groove.

[0053] In a possible implementation manner, the height of the fourth retaining ring is greater than the height of the second retaining ring.

[0054] This can increase the blocking effect of the fourth baffle ring on water vapor and negative pressure suction, effectively reduce or prevent water vapor from passing through the fourth baffle ring and entering the negative pressure source and the drive motor, and effectively improve the protection effect on the negative pressure source and the drive motor, thereby effectively improving the overall service life of the cleaning equipment.

[0055] In a possible implementation, a plurality of scrapers are evenly spaced and arranged in the groove.

[0056] This can make the amount of dirt between two adjacent scrapers equal, which helps to improve the uniformity of dirt storage between the scrapers. It can reduce or avoid excessive accumulation of dirt and jamming at the opening, which helps to improve the stability and reliability of dirt discharge.

[0057] Moreover, it can also ensure that the dirt scraped by each scraping blade is within a reasonable length range, effectively reducing or avoiding the situation where the amount of dirt scraped by the scraping blade is too large, causing the scraping blade to deform or break, etc., which helps to improve the reliability and stability of the scraping blade in scraping the dirt in the groove.

[0058] In a possible implementation manner, the ratio of the distance between adjacent scraping blades to the width of the opening is 0.9 to 1.1.

[0059] In this way, the dirt between adjacent two scraping blades can be discharged from the opening, reducing or avoiding situations such as the dirt getting stuck at the opening, which helps to improve the stability and reliability of the dirt discharge.

[0060] In a possible implementation manner, the water-air separation device is arranged near the top of the dirt storage cavity; the opening of the groove faces the side wall of the box body and maintains a certain distance.

[0061] In this way, when the scraping blade on the rotating separation member passes through the opening, the dirt above the groove can be scraped off and discharged from the opening. And when the dirt is discharged from the opening, its movement direction is towards the bottom of the sewage tank, that is, the movement direction of the dirt is towards the bottom wall of the dirt storage cavity, so that the dirt can fall on the bottom wall of the dirt storage cavity under the action of inertia and gravity. It can effectively reduce or avoid the dirt being discharged and sticking to the inner wall of the sewage tank, and can effectively reduce or avoid the dirt accumulating on the inner wall of the sewage tank, which helps to improve the efficiency of dirt removal.

[0062] In a possible implementation manner, the first separation grid surrounds the drive motor, and there is a ventilation channel between adjacent two first separation grids, and the first separation grid rotates under the drive of the drive motor.

[0063] In this way, it can effectively reduce or avoid the water and air entering the drive motor through the rotating separation member, making the water in the sewage tank away from the drive motor and the negative pressure source, and can effectively reduce or avoid the water entering the negative pressure source and the drive motor, causing damage to the negative pressure source and the drive motor, thereby effectively improving the protection of the negative pressure source and the drive motor and extending the service life of the cleaning device.

[0064] In a possible implementation manner, the scraping blade and the first separation grid are arranged in a staggered manner on the second substrate;

[0065] In this way, a gap can be generated between the scraping blade and the first separation grid, and the separation airflow generated by the rotating separation member can better pass through the gap between the scraping blade and the first separation grid to blow the dirt into the groove, so that the scraping blade can scrape the dirt from the groove.

[0066] And / or, the number of the scraping blades is equal to the number of the first separation grids, and one scraping blade is correspondingly arranged at an interval between every two adjacent first separation grids.

[0067] This can increase the number of scraping blades, reduce the distance between two adjacent scraping blades, reduce the length of the dirt that each scraping blade needs to scrape, and make the length of the dirt scraped by each scraping blade within a reasonable range. It can effectively reduce or avoid the situation that the amount of dirt scraped by the scraping blade is too large, resulting in deformation or fracture of the scraping blade, which helps to improve the reliability and stability of the scraping blade for scraping the dirt in the groove.

[0068] In a possible implementation manner, from the end of the rotating separation member away from the mounting bracket to the end of the rotating separation member close to the mounting bracket, the cross-section of the rotating separation member gradually increases, so that the rotating separation member has a frustum-shaped structure.

[0069] When a negative pressure is generated in the sewage storage cavity in the sewage tank under the action of a negative pressure source, the air in the sewage storage cavity will flow in the direction of the rotating separation member under the action of the negative pressure. This can effectively increase the contact area between the rotating separation member and the air, so that a relatively large amount of separation air flow can be generated during the rotation of the rotating separation member, and the effect of water-air separation can be effectively improved.

[0070] In a possible implementation manner, the rotating separation member further includes a second separation grid located on the second substrate, and at least a part of the outer side of the first separation grid is connected with the second separation grid.

[0071] The second substrate and the first separation grid can limit and fix the second separation grid to reduce or avoid the situation that the second separation grid falls off, etc., and can improve the reliability and stability of the second separation grid arranged in the rotating separation member. During the rotation of the rotating separation member, the second separation grid also rotates with the rotating separation member. During the rotation of the second separation grid, a relatively strong air volume can be generated, which can blow away most of the particulate dirt and hair between the second separation grid and the mounting bracket, and only a small part of the dirt can enter the groove through the gap between the second separation grid and the mounting bracket, so that the scraping blade can scrape the dirt in the groove.

[0072] In a possible implementation manner, in the axial direction of the rotating separation member, the length of the second separation grid is less than the length of the first separation grid, and the ratio of the length of the second separation grid to the length of the first separation grid is 1:3 to 1:5.

[0073] The length of the second separation grid is relatively small and it is located on the second substrate. In this way, the air volume generated when the second separation grid rotates can be concentrated around the second substrate and the first substrate, and the dirt between the first substrate and the second substrate can be blown away, so as to reduce the dirt between the rotating separation member and the mounting bracket, and avoid the accumulation of dirt between the rotating separation member and the mounting bracket, which may cause the rotating separation member to get stuck.

[0074] In a possible implementation manner, the number of the second separation grids is equal to the number of the first separation grids, and each of the first separation grids is correspondingly connected with one of the second separation grids.

[0075] In this way, the number of the second separation grids can be increased, the air volume generated by the second separation grids can be increased, and a large amount of air volume can be generated on the circumferential side of the rotating separation member by the second separation grids, so as to blow away the particulate dirt, hair, etc. between the second separation grids and the mounting bracket, effectively reduce the entry of dirt into the groove, and thus effectively reduce or avoid the accumulation of dirt in the groove.

[0076] In a second aspect of the present application, a sewage tank is provided, including: a box body and a water-gas separation device. The box body has a sewage storage cavity, and the water-gas separation device is communicated with the sewage storage cavity; the box body is provided with an air suction port and a sewage inlet. The air suction port is used to extract the gas in the sewage storage cavity to form a negative pressure environment in the sewage storage cavity, and the sewage inlet is configured to suck the dirt during the cleaning process of the cleaning device into the sewage storage cavity under the action of the pressure difference; the water-gas separation device is arranged on the air suction path of the air suction port, so that the fluid entering the air suction port needs to pass through the water-gas separation device;

[0077] The water-gas separation device includes a driving motor, a mounting bracket and a rotating separation member. The driving motor is installed on the mounting bracket; the rotating separation member is sleeved on the driving motor and extends to the mounting bracket. The rotating separation member is in transmission connection with the driving motor and rotates on the mounting bracket under the action of the driving motor;

[0078] A circular first retaining ring is arranged on the surface of the mounting bracket facing the rotating separation member, and the first retaining ring is provided with an opening;

[0079] A scraping blade matched with the first retaining ring is arranged on the surface of the rotating separation member facing the mounting bracket. The scraping blade is located inside the retaining ring and is used to scrape off the dirt around the inner side of the first retaining ring when the rotating separation member rotates and discharge it from the opening.

[0080] Since the rotating separating member rotates relative to the mounting bracket, there will be a certain rotational clearance, i.e., a fitting clearance, due to the rotation when the rotating separating member is mounted on the mounting bracket. Since the inside of the rotating separating member is connected to the negative pressure source, part of the water and air flow outside the rotating separating member will flow through the above-mentioned rotational clearance. Since the water and air flow will carry a lot of dirt, the dirt is likely to accumulate here when passing through the rotational clearance. The long-term accumulation makes the rotational clearance easy to be blocked, and then the rotating separating member cannot rotate relative to the mounting bracket, resulting in the failure of the water and gas separation device and posing a great risk of water ingress to the negative pressure source motor connected to the suction port.

[0081] In an embodiment of the present application, a ring-shaped first retaining ring is provided on the surface of the rotating separating member facing the mounting bracket, and a scraping blade is provided on the surface of the mounting bracket facing the rotating separating member. The scraping blade rotates relative to the first retaining ring under the drive of the rotating separating member, and the scraping blade scrapes off the dirt accumulated around the inner side of the first retaining ring. The dirt moves relative to the first retaining ring, that is, the dirt rotates around the mounting bracket together with the scraping blade. During the rotation of the dirt, a centrifugal force will be generated. When the dirt rotates with the scraping blade to the opening of the first retaining ring, the dirt will be thrown out of the first retaining ring under the action of the centrifugal force and fall into the sewage chamber of the sewage tank. This can effectively reduce the dirt in the first retaining ring, effectively reduce the dirt between the fitting gaps between the rotating separating member and the mounting bracket, reduce or avoid the dirt accumulation between the rotating separating member and the mounting bracket, which causes the rotating separating member to jam, helps to improve the reliability and stability of the rotation of the rotating separating member, thereby effectively improving the reliability and stability of the overall movement of the water and gas separation device, and extending the service life of the water and gas separation device; moreover, the dirt accumulated in the fitting gap is cleaned in time, which can avoid mildew and odor caused by dirt accumulation here, improve the cleanliness of the sewage tank while further enhancing the user experience.

[0082] In a possible implementation manner, the rotating separating member is covered on the drive motor in the form of a separation basket, and the mounting bracket includes a first substrate, and a ring-shaped second retaining ring is surrounded on the surface of the first substrate facing the rotating separating member;

[0083] The first retaining ring is surrounded outside the second retaining ring and fixed on the first substrate, and the first retaining ring and the second retaining ring are arranged at intervals, and the first retaining ring and the second retaining ring form a groove on the first substrate, the scraping blade is located in the groove, and the opening (1221) is opened on the first retaining ring;

[0084] The rotating separating member includes a second substrate, a plurality of first separating grids, and a plurality of the scraping blades; the second substrate is disposed opposite to the first substrate; the plurality of first separating grids are all located on a surface of the second substrate facing away from the first substrate, and the plurality of first separating grids are spaced apart and surround the second substrate; the plurality of scraping blades are located on a surface of the second substrate facing the first substrate.

[0085] During the process of driving the rotating separating member to rotate by the driving motor, the rotating separating member can drive the scraping blades on the second substrate to rotate together, and since the scraping blades are located on a surface of the second substrate facing the first substrate, the scraping blades can extend into the grooves on the first substrate to scrape off the dirt in the grooves, thereby effectively reducing and avoiding the accumulation of dirt in the grooves, which may cause the rotation of the rotating separating member to jam, and effectively improving the reliability and stability of the operation of the rotating separating member.

[0086] In a possible implementation manner, the rotating separating member further includes a third retaining ring; the third retaining ring surrounds a surface of the second substrate facing the first substrate, and the third retaining ring is located on a side of the scraping blades facing the center of the rotating separating member; the second retaining ring is located between the third retaining ring and the scraping blades;

[0087] The mounting bracket further includes a fourth retaining ring; the fourth retaining ring is located on a surface of the first substrate facing the rotating separating member, and the fourth retaining ring is located on a side of the second retaining ring facing away from the first retaining ring; the third retaining ring is located between the fourth retaining ring and the second retaining ring;

[0088] The first retaining ring, the scraping blades, the second retaining ring, the third retaining ring, and the fourth retaining ring sequentially form a labyrinth air intake passage between the first substrate and the second substrate. The labyrinth air intake passage is used for depositing water vapor. The input end of the labyrinth air intake passage leads to the outside of the rotating separating member, and its output end leads to the inside of the rotating separating member.

[0089] This can weaken the negative pressure suction at the labyrinth structure, reduce or avoid excessive negative pressure suction at the labyrinth structure, which may cause a large amount of dirt to be sucked into the grooves, and can reduce the load on the scraping blades for cleaning in the grooves, contributing to improving the cleaning effect of the scraping blades on the dirt in the grooves.

[0090] The third aspect of the present application provides a cleaning device, including the sewage tank described in any one of the above.

[0091] By making the cleaning device include the above sewage tank, it can effectively reduce or avoid failures of the sewage tank in the cleaning device, effectively improve the reliability and stability of the operation of the cleaning device, and extend the service life of the cleaning device. Description of the Drawings

[0092] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0093] Figure 1 Structural schematic diagram of a sewage tank provided by an embodiment of the present application;

[0094] Figure 2 Exploded view of a sewage tank provided by an embodiment of the present application;

[0095] Figure 3 Structural schematic diagram of a water-gas separation device provided by an embodiment of the present application;

[0096] Figure 4 Exploded view of a water-gas separation device provided by an embodiment of the present application from one perspective;

[0097] Figure 5 Exploded view of a water-gas separation device provided by an embodiment of the present application from another perspective;

[0098] Figure 6 Structural schematic diagram of a mounting bracket provided by an embodiment of the present application;

[0099] Figure 7 For Figure 6 Enlarged view of area A in;

[0100] Figure 8 Structural schematic diagram of a rotating separation member provided by an embodiment of the present application;

[0101] Figure 9 Structural schematic diagram of the distribution of scraping blades in a groove provided by an embodiment of the present application;

[0102] Figure 10 Schematic diagram of the dimension marking of an opening and a groove provided by an embodiment of the present application;

[0103] Figure 11 Cross-sectional view of a water-gas separation device provided by an embodiment of the present application;

[0104] Figure 12 For Figure 11 Enlarged view of area B in.

[0105] Reference numerals

[0106] 100 - Water-gas separation device;

[0107] 110 - Driving motor;

[0108] 120 - Mounting bracket;

[0109] 121 - First substrate;

[0110] 122 - First retaining ring;

[0111] 1221 - Opening;

[0112] 1222 - Main body; 12221 - First end; 12222 - Second end;

[0113] 1223 - Flow - guiding part; 12231 - Third end; 12232 - Fourth end;

[0114] 123 - Second retaining ring;

[0115] 124 - Groove;

[0116] 125 - Fourth retaining ring;

[0117] 130 - Rotating and separating part;

[0118] 131 - Second substrate;

[0119] 132 - Separation grid;

[0120] 133 - Scraping blade;

[0121] 134 - Second separation grid;

[0122] 135 - Third retaining ring;

[0123] 136 - Labyrinth - type air intake channel;

[0124] 137 - Ventilation channel;

[0125] 200 - Box body;

[0126] 210 - Sewage chamber;

[0127] 1 - Sewage tank. Detailed implementation mode

[0128] As described in the background art, in the water - air separation device of existing cleaning equipment, the water - air separation device includes an impeller and a driving motor. The impeller is connected to the driving motor, and the driving motor can drive the impeller to rotate to achieve water - air separation. Among them, during the cooperation between the impeller and the driving motor, there is a fitting gap between the impeller and the fixed bracket. During the long - term operation of the water - air separation device, solid stains will enter and accumulate in the fitting gap. The accumulated stains will affect the normal rotation of the impeller and even cause damage to the water - air separation device.

[0129] Therefore, how to solve the problem of impeller stain jamming has become an urgent problem to be solved.

[0130] To solve the above problems, the present application provides a sewage tank and a cleaning device. By providing an annular groove on the surface of the mounting bracket facing the rotating separation member and a scraping blade on the surface of the rotating separation member facing the mounting bracket, the scraping blade can scrape off the dirt in the groove when the rotating separation member rotates and discharge it from the opening outside the groove. When the scraping blade rotates driven by the rotating separation member, it can scrape off the accumulated dirt in the groove and push the dirt to move together in the groove, that is, the dirt rotates around the mounting bracket together with the scraping blade. During the rotation of the dirt, a centrifugal force will be generated. When the dirt rotates with the scraping blade to the opening outside the groove, the dirt will be thrown out of the groove under the action of the centrifugal force and fall into the sewage chamber of the sewage tank. This can effectively reduce the dirt in the groove, effectively reduce the dirt between the mating gaps between the rotating separation member and the mounting bracket, reduce or avoid the dirt accumulation between the rotating separation member and the mounting bracket, which may cause the rotating separation member to jam, and help improve the reliability and stability of the rotation of the rotating separation member, thereby effectively improving the reliability and stability of the overall movement of the water-air separation device.

[0131] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0132] The embodiments of the present application provide a sewage tank of a cleaning device and a cleaning device including the sewage tank. The cleaning device can be a floor washer. For example, the cleaning device can be a household handheld floor washer or a commercial floor washer, etc. The cleaning device is mainly used to clean stains and dust on the surface to be cleaned. The surface to be cleaned can be a floor, a wall, or the surface of an object to be cleaned with different roughness levels. The embodiments of the present application do not make specific limitations on the type of the surface to be cleaned.

[0133] Figure 1 It is a schematic structural diagram of a sewage tank provided by an embodiment of the present application. Figure 2 It is an exploded view of a sewage tank provided by an embodiment of the present application. Figure 3 It is a schematic structural diagram of a water-air separation device provided by an embodiment of the present application. Figure 4 It is an exploded view of a water-air separation device provided by an embodiment of the present application from one perspective. Figure 5 It is an exploded view of a water-air separation device provided by an embodiment of the present application from another perspective.

[0134] See Figure 1 andFigure 2 As shown, the cleaning device may include a negative pressure source (not shown in the figure) and a sewage tank 1. The negative pressure source may be communicated with the sewage tank 1, and the sewage tank 1 may be used to collect sewage on the ground. For example, the sewage tank 1 may include a box body 200 and a water-gas separation device 100. The box body 200 may have a sewage storage cavity 210. The water-gas separation device 100 may be communicated with the sewage storage cavity 210. The box body 200 may be provided with an air suction port (not shown in the figure) and a sewage inlet (not shown in the figure). The air suction port may be used to extract the gas in the sewage storage cavity 210 to form a negative pressure environment in the sewage storage cavity 210. The sewage inlet is configured to suck the dirt during the cleaning process of the cleaning device into the sewage storage cavity 210 under the action of the pressure difference. The water-gas separation device 100 is arranged on the air suction path of the air suction port, so that the fluid entering the air suction port needs to pass through the water-gas separation device 100.

[0135] Combined with Figure 3 and Figure 4 As shown, the water-gas separation device 100 may include a driving motor 110, a mounting bracket 120 and a rotating separation member 130. Among them, the driving motor 110 may be mounted on the mounting bracket 120, and the rotating separation member 130 may be sleeved on the driving motor 110 and extend to the mounting bracket 120. The rotating separation member 130 may be in transmission connection with the driving motor 110 and rotate on its own from the mounting bracket 120 under the action of the driving motor 110. For example, the rotating separation member 130 may be an impeller mechanism, and the driving motor 110 may drive the rotating separation member 130 to rotate, so that the rotating separation member 130 can achieve water-gas separation. This can effectively reduce or avoid the water in the sewage tank 1 from entering the negative pressure source and damaging the negative pressure source.

[0136] See Figure 4 As shown, a circular groove 124 may be provided on one side of the mounting bracket 120 facing the rotating separation member 130, and the groove 124 may be provided close to the outer periphery of the rotating separation member 130. An opening 1221 may be formed on the outer side wall of the groove 124. Combined with Figure 5 As shown, a scraping blade 133 may be provided on one side of the rotating separation member 130 facing the mounting bracket 120. The scraping blade 133 may be located in the groove 124, and the scraping blade 133 may be used to scrape the dirt in the groove 124 and discharge it from the opening 1221 when the rotating separation member 130 rotates.

[0137] Specifically, when the rotating separating member 130 rotates, the scraping blade 133 on the rotating separating member 130 can be driven to rotate together, so that the scraping blade 133 can slide in the groove 124. During the sliding process of the scraping blade 133, the dirt accumulated in the groove 124 can be scraped off, and the dirt is pushed to rotate in the groove 124 together, that is, the dirt rotates around the mounting bracket 120 together with the scraping blade 133. Centrifugal force is generated during the rotation of the dirt. When the dirt rotates with the scraping blade 133 to the opening 1221 outside the groove 124, the dirt will be thrown out of the groove 124 under the action of centrifugal force and fall into the sewage chamber of the sewage tank 1. In this way, the dirt in the groove 124 can be effectively reduced, the dirt between the mating gaps between the rotating separating member 130 and the mounting bracket 120 can be effectively reduced, and the situation that the rotating separating member 130 is stuck due to the accumulation of dirt between the rotating separating member 130 and the mounting bracket 120 can be reduced or avoided, which helps to improve the reliability and stability of the rotation of the rotating separating member 130, thereby effectively improving the reliability and stability of the overall movement of the water-gas separation device 100.

[0138] Among them, referring to Figure 2 As shown, the water-gas separation device 100 can be arranged near the top of the sewage storage chamber 210 of the sewage tank 1, and the opening 1221 of the groove 124 can be arranged facing the side wall of the box body 200 and kept at a certain distance from the side wall of the box body 200. In this way, when the dirt is discharged from the opening 1221, the dirt can fall towards the bottom position of the sewage storage chamber 210.

[0139] For example, referring to Figure 4 As shown, the opening 1221 can be located on the side of the rotating separating member 130, and along the rotation direction of the rotating separating member 130, the rotating separating member 130 can rotate from above the opening 1221 towards below, in other words, it can be understood that when the rotating separating member 130 passes through the opening 1221, it rotates from the end of the opening 1221 close to the top of the sewage tank 1 towards the end of the opening 1221 close to the bottom of the sewage tank 1.

[0140] In this way, when the scraping blade 133 on the rotating separating member 130 passes through the opening 1221, the dirt above the groove 124 can be scraped off and discharged from the opening 1221, and when the dirt is discharged from the opening 1221, its movement direction is towards the bottom direction of the sewage tank 1, that is, the movement direction of the dirt is towards the sewage chamber 210, so that the dirt can fall into the sewage chamber 210 under the action of inertia and gravity.

[0141] In this way, it can effectively reduce or avoid the dirt discharged from sticking to the inner wall of the box body 200 of the sewage tank 1, and can effectively reduce or avoid the accumulation of dirt on the inner wall of the box body 200 of the sewage tank 1, which helps to improve the efficiency of dirt removal.

[0142] Figure 6 The structural schematic diagram of a mounting bracket provided by an embodiment of the present application.

[0143] See Figure 6 As shown, the mounting bracket 120 may include a first substrate 121, and an annular first retaining ring 122 and a second retaining ring 123 may be disposed around one surface of the first substrate 121 facing the rotating and separating member 130. The first retaining ring 122 may be disposed outside the second retaining ring 123, and the first retaining ring 122 and the second retaining ring 123 may be spaced apart, and a groove 124 may be formed between the first retaining ring 122 and the second retaining ring 123. For example, the first retaining ring 122 may be disposed inside the wiper blade 133, and the second retaining ring 123 may be disposed around the outer periphery of the wiper blade 133, so that the wiper blade 133 may be located in the groove 124 formed by the first retaining ring 122 and the second retaining ring 123.

[0144] An opening 1221 may be formed on the first retaining ring 122, so that the opening 1221 may be located outside the groove 124. When the wiper blade 133 moves in the groove 124, the dirt in the groove 124 may be scraped off and pushed to move together with the wiper blade 133. When the dirt moves with the wiper blade 133 to the opening 1221 at the first retaining ring 122, it may be discharged through the opening 1221 located outside the groove 124, so that the dirt may fall into the sewage chamber 210 of the sewage tank 1.

[0145] Figure 7 is Figure 6 The enlarged view of area A in

[0146] Continue to see Figure 7 As shown, the first retaining ring 122 may include a connected main body portion 1222 and a guiding portion 1223. The main body portion 1222 may be arc-shaped. Along the bending direction of the main body portion 1222, the two ends of the main body portion 1222 may be denoted as a first end 12221 and a second end 12222. For example, the main body portion 1222 may extend from the first end 12221 along an arc to the second end 12222 to form the main body portion 1222. The two ends of the guiding portion 1223 may be denoted as a third end 12231 and a fourth end 12232. For example, the guiding portion 1223 may be a flat plate structure, and the third end 12231 of the guiding portion 1223 may be connected to the first end 12221 of the main body portion 1222. An opening 1221 may be formed between the fourth end 12232 of the guiding portion 1223 and the second end 12222 of the main body portion 1222, so that the dirt may be discharged from the opening 1221 between the fourth end 12232 of the guiding portion 1223 and the second end 12222 of the main body portion 1222.

[0147] Among them, the fourth end 12232 of the diversion part 1223 can deviate in a direction away from the second retaining ring 123. When the wiper 133 rotates in the groove 124, it can scrape the dirt in the groove 124 and rotate together in the groove 124, and the rotating dirt has centrifugal force. When the dirt moves to the opening 1221 of the groove 124, the dirt can move in a direction away from the groove 124 under the guiding action of the diversion part 1223, and is thrown out of the groove 124 under the action of centrifugal force. In this way, it can effectively reduce or avoid the jamming of dirt at the opening 1221, enable the dirt to be smoothly thrown out of the opening 1221 into the sewage chamber 210, effectively reduce the residue of dirt in the groove 124, and thus effectively improve the cleaning efficiency of dirt in the groove 124.

[0148] Continue to refer to Figure 7 As shown, among them, the extending direction of the diversion part 1223 can be tangent to the first end 12221 of the main body part 1222. The diversion part 1223 is a flat plate-like structure. By making the diversion part 1223 tangent to the first end 12221 of the main body part 1222, the fourth end 12232 of the diversion part 1223 can be offset in a direction away from the groove 124 to smoothly guide the dirt in the groove 124 out of the groove 124. Moreover, by making the diversion part 1223 tangent to the first end 12221 of the main body part 1222, the connection between the diversion part 1223 and the main body part 1222 can be made smoother, reducing or avoiding dead corners at the connection between the diversion part 1223 and the main body part 1222, and further preventing dirt from accumulating at the dead corners, which is convenient for cleaning the connection between the diversion part 1223 and the main body part 1222.

[0149] In addition, it can also reduce or avoid stress concentration and other situations where an angle appears at the connection between the diversion part 1223 and the main body part 1222, which helps to improve the reliability and stability of the connection between the diversion part 1223 and the main body part 1222.

[0150] Continue to refer to Figure 6 and Figure 7 As shown, the rotating separation member 130 can rotate in the sequential direction of the second end 12222 of the main body part 1222, the first end 12221 to the third end 12231 of the diversion part 1223. The diversion part 1223 can be located at the end of the rotation direction of the rotating separation member 130, that is, Figure 6 the x direction in

[0151] Figure 8 This is a schematic structural diagram of a rotating separator provided by an embodiment of the present application.

[0152] Referring to Figure 8 As shown, the rotating separator 130 may include a second substrate 131, a plurality of first separation grids 132, and a plurality of scraping blades 133. The first substrate 121 may be disposed opposite to the second substrate 131. The plurality of first separation grids 132 may be all located on the side of the second substrate 131 facing away from the first substrate 121, and the first separation grids 132 may be spaced apart and surround the second substrate 131. The plurality of scraping blades 133 may be located on the side of the second substrate 131 facing the first substrate 121.

[0153] During the process of the driving motor 110 driving the rotating separator 130 to rotate, the rotating separator 130 may drive the scraping blades 133 on the second substrate 131 to rotate together. Moreover, since the scraping blades 133 are located on the side of the second substrate 131 facing the first substrate 121, the scraping blades 133 can extend into the grooves 124 on the first substrate 121 to scrape off the dirt in the grooves 124. Thus, it can effectively reduce and avoid the accumulation of dirt in the grooves 124, which may cause the rotation of the rotating separator 130 to jam, and effectively improve the reliability and stability of the operation of the rotating separator 130.

[0154] Among them, continuing to refer to Figure 8 As shown, the first separation grids 132 may be arranged around the driving motor 110, and there is a ventilation channel 137 between two adjacent first separation grids 132. The first separation grids 132 may rotate under the drive of the driving motor 110 to generate a separation airflow. For example, the second substrate 131 may be of an annular structure, and the plurality of first separation grids 132 are spaced apart and surround the second substrate 131. The second substrate 131 and the first separation grids 132 may form a receiving cavity with an opening.

[0155] The driving motor 110 may extend into the receiving cavity through the opening. When the driving motor 110 rotates, it may drive the second substrate 131 and the first separation grids 132 located on the second substrate 131 to rotate together, so that the rotating separator 130 generates a centrifugal airflow. The airflow may flow around through the ventilation channel 137 to form a separation airflow.

[0156] In this way, it can effectively reduce or avoid moisture entering the driving motor 110 through the rotating separator 130, keep the water in the sewage tank 1 away from the driving motor 110 and the negative pressure source, and can effectively reduce or avoid moisture entering the negative pressure source and the driving motor 110, which may cause damage to the negative pressure source and the driving motor 110. Thus, it can effectively improve the protection of the negative pressure source and the driving motor 110 and extend the service life of the cleaning device.

[0157] Continuing to refer toFigure 8 As shown, the wiper blade 133 can be arranged offset from the first separation grid 132 on the second substrate 131, so that a gap can be formed between the wiper blade 133 and the first separation grid 132. The separation air flow generated by rotating the separator 130 can better pass through the gap between the wiper blade 133 and the first separation grid 132, so as to blow the dirt into the groove 124, enabling the wiper blade 133 to scrape the dirt out of the groove 124.

[0158] Figure 9 This is a schematic structural diagram of the distribution of a wiper blade in a groove provided by an embodiment of the present application.

[0159] See Figure 8 and Figure 9 As shown, a plurality of the wiper blades 133 are arranged at equal intervals in the groove 124. This can make the amount of dirt between two adjacent wiper blades 133 equal, which helps to improve the uniformity of dirt storage between the wiper blades 133. It can reduce or avoid the situation that too much dirt accumulates and jams at the opening 1221, which helps to improve the stability and reliability of dirt discharge.

[0160] Moreover, it can also make the length of the dirt scraped by each wiper blade 133 within a reasonable range, which can effectively reduce or avoid the situation that the amount of dirt scraped by the wiper blade 133 is too large, causing the wiper blade 133 to deform or break, etc., which helps to improve the reliability and stability of the wiper blade 133 in scraping the dirt in the groove 124.

[0161] For example, continue to see Figure 8 As shown, the number of the wiper blades 133 can be equal to the number of the first separation grids 132, and a wiper blade 133 can be correspondingly arranged at intervals between every two adjacent first separation grids 132. Combining Figure 9 As shown, for example, the wiper blades 133 can be evenly distributed on the first substrate 121. This can increase the number of the wiper blades 133, effectively increase the number of the wiper blades 133 distributed in the groove 124, reduce the distance between two adjacent wiper blades 133, and reduce the length of the dirt that each wiper blade 133 needs to scrape, so that the length of the dirt scraped by each wiper blade 133 is within a reasonable range. It can effectively reduce or avoid the situation that the amount of dirt scraped by the wiper blade 133 is too large, causing the wiper blade 133 to deform or break, etc., which helps to improve the reliability and stability of the wiper blade 133 in scraping the dirt in the groove 124.

[0162] Among them, the ratio of the distance between two adjacent scraping blades 133 to the width of the opening 1221 can be 0.9 to 1.1. The width of the opening 1221 can be understood as the distance between the second end 12222 of the main body portion 1222 and the fourth end 12232 of the diversion portion 1223. In this way, the dirt between two adjacent scraping blades 133 can be discharged from the opening 1221, which can reduce or avoid the situation of jamming of dirt at the opening 1221, and contribute to improving the stability and reliability of dirt discharge.

[0163] Continue to refer to Figure 8 As shown, from the end of the rotating separation member 130 far from the mounting bracket 120 to the end of the rotating separation member 130 close to the mounting bracket 120, the cross-section of the rotating separation member 130 can gradually increase, so that the rotating separation member 130 has a frustum-shaped structure.

[0164] In this way, when a negative pressure is generated in the sewage storage cavity in the sewage tank 1 under the action of a negative pressure source, the air in the sewage storage cavity will flow towards the direction of the rotating separation member 130 under the action of the negative pressure. It can effectively increase the area of contact between the rotating separation member 130 and the air, so that a relatively large amount of separated air flow can be generated during the rotation of the rotating separation member 130, and the effect of water-gas separation can be effectively improved.

[0165] Continue to refer to Figure 8 As shown, the rotating separation member 130 may further include a second separation grid 134 located on the second substrate 131, and at least a part of the outside of the first separation grid 132 is connected to the second separation grid 134. The second substrate 131 and the first separation grid 132 can limit and fix the second separation grid 134, so as to reduce or avoid the situation of the second separation grid 134 falling off, etc., and improve the reliability and stability of the second separation grid 134 arranged in the rotating separation member 130.

[0166] During the rotation of the rotating separation member 130, the second separation grid 134 also rotates with the rotating separation member 130. During the rotation of the second separation grid 134, a strong air volume can be generated, and most of the particulate dirt and hair between the second separation grid 134 and the mounting bracket 120 can be blown away, and only a small part of the dirt can enter the groove 124 through the gap between the second separation grid 134 and the mounting bracket 120, so that the scraping blade 133 can scrape the dirt in the groove 124.

[0167] Continue to refer to Figure 8 As shown, in the axial direction of the rotating separation member 130 (that is, Figure 7In the y - direction, the length of the second separation grid 134 can be less than that of the first separation grid 132, and the ratio of the length of the second separation grid 134 to that of the first separation grid 132 can be 1:3 to 1:5. The length of the second separation grid 134 is smaller and it is located on the second substrate 131. In this way, the air volume generated when the second separation grid 134 rotates can be concentrated around the second substrate 131 and the first substrate 121, and the dirt between the first substrate 121 and the second substrate 131 can be blown away, so as to reduce the dirt between the rotating separation member 130 and the mounting bracket 120 and avoid the accumulation of dirt between the rotating separation member 130 and the mounting bracket 120, which may cause the rotating separation member 130 to get stuck.

[0168] Among them, the number of the second separation grids 134 can be equal to that of the first separation grids 132, and one second separation grid 134 is correspondingly connected to each first separation grid 132. In this way, the number of the second separation grids 134 can be increased, and the air volume generated by the second separation grids 134 can be increased, so that a large amount of air volume can be generated on the circumferential side of the rotating separation member 130 by the second separation grids 134, so as to blow away the particulate dirt and hair between the second separation grids 134 and the mounting bracket 120, and effectively reduce the entry of dirt into the groove 124, thereby effectively reducing or avoiding the accumulation of dirt in the groove 124.

[0169] Figure 10 It is a schematic diagram of the size marking of an opening and a groove provided by an embodiment of the present application.

[0170] See Figure 10 As shown, the width of the opening 1221 can be W 1 , and the width of the groove 124 can be W 2 , and the ratio of W 1 to W 2 can be 0.5 to 1. The width of the opening 1221 refers to the distance between the second end 12222 of the main body part 1222 and the fourth end 12232 of the diversion part 1223. The above - mentioned width ratio can improve the rationality of the width of the opening 1221, so that the dirt in the groove 124 can be smoothly discharged from the opening 1221 under the scraping of the scraping piece 133, effectively reducing or avoiding the jamming of dirt at the opening 1221 and effectively improving the stability of dirt discharge.

[0171] Figure 11 It is a cross - sectional view of a water - air separation device provided by an embodiment of the present application. Figure 12 is Figure 11 the enlarged view of area B in

[0172] See Figure 11 and Figure 12 As shown, the distance between the scraping piece 133 and the first retaining ring 122 can be d1 , d 1 The value of d can be 0.3 mm to 0.7 mm, which can be understood as the distance between the wiper 133 and the outer side wall of the groove 124 being 0.3 mm to 0.7 mm. This distance can prevent the wiper 133 from rubbing against the inner wall of the groove 124 due to being too close to the first retaining ring 122, can prevent friction between the wiper 133 and the first retaining ring 122 from affecting the normal rotation of the wiper 133, and helps improve the smoothness of the rotation of the wiper 133.

[0173] Moreover, the above distance can also prevent the distance between the wiper 133 and the first retaining ring 122 from being too far, which may affect the scraping effect of the wiper 133 on the dirt in the groove 124. It can enable the wiper 133 to effectively scrape the dirt in the groove 124, and can effectively improve the cleaning effect of the wiper 133 on the dirt in the groove 124.

[0174] Continue to refer to Figure 12 As shown, the distance between the wiper 133 and the second retaining ring 123 can be d 2 , d 2 The value of d can be 0.3 mm to 0.7 mm. It can be understood as the distance between the wiper 133 and the inner side wall of the groove 124 being 0.3 mm to 0.7 mm. This distance can prevent the wiper 133 from rubbing against the inner wall of the groove 124 due to being too close to the second retaining ring 123, can prevent friction between the wiper 133 and the second retaining ring 123 from affecting the normal rotation of the wiper 133, and helps improve the smoothness of the rotation of the wiper 133.

[0175] Moreover, the above distance can also prevent the distance between the wiper 133 and the second retaining ring 123 from being too far, which may affect the scraping effect of the wiper 133 on the dirt in the groove 124. It can enable the wiper 133 to effectively scrape the dirt in the groove 124, and can effectively improve the cleaning effect of the wiper 133 on the dirt in the groove 124.

[0176] Continue to refer to Figure 12 As shown, the distance between the second substrate 131 and the first retaining ring 122 can be d 3 , d 3 The value of d can be 0.7 mm to 1 mm. That is, the distance between the second substrate 131 and the end of the enclosure of the groove 124 is 0.7 mm to 1 mm. This distance can facilitate the dirt around the outside of the groove 124 to enter the groove 124, so that the wiper 133 can scrape the dirt that has entered the groove 124, thereby cleaning the dirt around the rotating separation member 130.

[0177] Continue to refer to Figure 12 As shown, the distance between the top of the wiper 133 and the bottom of the groove 124 can be d4 , d 4 The value of d can be 0.7 mm to 1 mm. This distance can make the distance between the wiper 133 and the bottom of the groove 124 more reasonable, avoid the distance between the wiper 133 and the bottom of the groove 124 being too close and causing friction between the wiper 133 and the bottom wall of the groove 124, prevent the friction between the wiper 133 and the bottom of the groove 124 from affecting the normal rotation of the wiper 133, and help improve the smoothness of the rotation of the wiper 133.

[0178] Moreover, the above distance can also avoid the distance between the wiper 133 and the bottom wall of the groove 124 being too far and affecting the scraping effect of the wiper 133 on the dirt in the groove 124, enable the wiper 133 to effectively scrape the dirt in the groove 124, and can effectively improve the cleaning effect of the wiper 133 on the dirt in the groove 124.

[0179] Continue to refer to Figure 12 As shown, the rotating separator 130 may further include a third retaining ring 135. The third retaining ring 135 may be disposed around the surface of the second substrate 131 facing the first substrate 121, and the third retaining ring 135 may be located on the side of the wiper 133 facing the center of the rotating separator 130. In other words, the wiper 133 is disposed around the outer periphery of the third retaining ring 135.

[0180] There may be a gap between the third retaining ring 135 and the wiper 133, and the second retaining ring 123 is located between the third retaining ring 135 and the wiper 133. The third retaining ring 135 can block water vapor, reduce or avoid water vapor from entering the drive motor 110 and the negative pressure source, and help improve the protection of the drive motor 110 and the negative pressure source.

[0181] Moreover, a labyrinth structure may be formed between the third retaining ring 135, the second retaining ring 135 and the wiper 133. This can weaken the negative pressure suction at the labyrinth structure, reduce or avoid the negative pressure suction at the labyrinth structure being too large and causing a large amount of dirt to be sucked into the groove 124, reduce the load on the wiper 133 when cleaning in the groove 124, and help improve the cleaning effect of the wiper 133 on the dirt in the groove 124.

[0182] Continue to refer to Figure 12 As shown, the mounting bracket 120 may further include a fourth retaining ring 125. The fourth retaining ring 125 may be located on the surface of the first substrate 121 facing the rotating separator 130, and the fourth retaining ring 125 may be located on the side of the second retaining ring 123 facing away from the groove 124. There may be a gap between the fourth retaining ring 125 and the second retaining ring 123, and the third retaining ring 135 may be located between the fourth retaining ring 125 and the second retaining ring 123.

[0183] The fourth retaining ring 125 can block water vapor, reducing or preventing water vapor from entering the drive motor 110 and the negative pressure source, which helps improve the protection of the drive motor 110 and the negative pressure source.

[0184] The first retaining ring 122, the wiper blade 133, the second retaining ring 123, the third retaining ring 135, and the fourth retaining ring 125 alternately form a labyrinth air intake passage 136 between the first substrate 121 and the second substrate 131. The labyrinth air intake passage 136 is used to sediment water vapor. The input end of the labyrinth air intake passage 136 leads to the outside of the rotating separator 130, and its output end leads to the inside of the rotating separator 130. This can weaken the negative pressure suction at the labyrinth structure, reducing or preventing excessive negative pressure suction at the labyrinth structure from sucking a large amount of dirt into the groove 124, reducing the load on the wiper blade 133 to clean the dirt in the groove 124, and helping to improve the cleaning effect of the wiper blade 133 on the dirt in the groove 124.

[0185] Among them, the height of the fourth retaining ring 125 can be greater than the height of the second retaining ring 123, that is, in the axial direction of the rotating separator 130, the dimension length of the fourth retaining ring 125 is greater than the dimension length of the second retaining ring 123. This can increase the blocking effect of the fourth retaining ring 125 on water vapor and negative pressure suction, effectively reducing or preventing water vapor from passing through the fourth retaining ring 125 and entering the negative pressure source and the drive motor 110, and can effectively improve the protection effect on the negative pressure source and the drive motor 110, thereby effectively enhancing the overall service life of the cleaning device.

[0186] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present application.

[0187] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A sewage tank for cleaning equipment, characterized in that: include: A box (200) and a water-gas separation device (100), wherein the box (200) has a dirt storage chamber (210), and the water-gas separation device (100) is in communication with the dirt storage chamber (210); the box (200) is provided with an air intake port and a dirt inlet port, the air intake port being used to extract gas from the dirt storage chamber (210) to form a negative pressure environment in the dirt storage chamber (210), and the dirt inlet port being configured to suck dirt generated during the cleaning process of the cleaning device into the dirt storage chamber (210) under the action of a pressure difference; the water-gas separation device (100) is arranged on an air intake path of the air intake port, so that the fluid entering the air intake port needs to pass through the water-gas separation device (100); The water-gas separation device (100) comprises a driving motor (110), a mounting bracket (120) and a rotating separation member (130); the driving motor (110) is mounted on the mounting bracket (120); the rotating separation member (130) is sleeved on the driving motor (110) and extends to the mounting bracket (120); the rotating separation member (130) is drivingly connected to the driving motor (110) and rotates on the mounting bracket (120) under the action of the driving motor (110); A side of the mounting bracket (120) facing the rotating separation member (130) is provided with an annular groove (124), and an outer side wall of the groove (124) is provided with an opening (1221); A scraper (133) matching the groove (124) is provided on one side of the rotating separation member (130) facing the mounting bracket (120); the scraper (133) is located in the groove (124); and the scraper (133) is used to scrape off dirt in the groove (124) and discharge it from the opening (1221) when the rotating separation member (130) rotates.

2. The sewage tank according to claim 1, characterized in that: The mounting bracket (120) comprises a first substrate (121), and a first annular retaining ring (122) and a second retaining ring (123) are arranged on a surface of the first substrate (121) facing the rotating separation member (130); The first retaining ring (122) is arranged outside the second retaining ring (123), and the first retaining ring (122) and the second retaining ring (123) are arranged at an interval, the groove (124) is formed between the first retaining ring (122) and the second retaining ring (123), and the opening (1221) is opened on the first retaining ring (122).

3. The sewage tank according to claim 2, characterized in that: The rotating separation member (130) comprises a second substrate (131), a plurality of first separation grids (132) and a plurality of scrapers (133); The second substrate (131) is arranged opposite to the first substrate (121); The plurality of first separation gates (132) are all located on a side of the second substrate (131) facing away from the first substrate (121), and the plurality of first separation gates (132) are arranged on the second substrate (131) at intervals; The plurality of scrapers (133) are located on a side of the second substrate (131) facing the first substrate (121).

4. The sewage tank according to claim 2 or 3, characterized in that: The first retaining ring (122) comprises a main body portion (1222) and a flow guide portion (1223) connected to each other; The main body (1222) is in an arc shape, the two ends of the main body (1222) are recorded as a first end (12221) and a second end (12222), and the two ends of the guide portion (1223) are recorded as a third end (12231) and a fourth end (12232); The third end (12231) of the guide portion (1223) is connected to the first end (12221) of the main body portion (1222), and the opening (1221) is formed between the fourth end (12232) of the guide portion (1223) and the second end (12222) of the main body portion (1222); The fourth end (12232) of the guide portion (1223) deviates in a direction away from the second retaining ring (123).

5. The sewage tank according to claim 4, characterized in that: The extension direction of the guide portion (1223) is tangent to the first end (12221) of the main body portion (1222).

6. The sewage tank according to claim 4, characterized in that: The rotating separation member rotates in a sequence of the second end, the first end and the third end.

7. The sewage tank according to claim 2 or 3, characterized in that: The distance between the scraper (133) and the first retaining ring (122) is d1, and the value of d1 is 0.3 mm to 0.7 mm; The distance between the scraper (133) and the second retaining ring (123) is d2, and the value of d2 is 0.3 mm to 0.7 mm.

8. The sewage tank according to claim 3, characterized in that: The distance between the second substrate (131) and the first retaining ring (122) is d3, and the value of d3 is 0.7 mm to 1 mm; The distance between the scraper (133) and the bottom of the groove (124) is d4, and the value of d4 is 0.7 mm to 1 mm.

9. The sewage tank according to any one of claims 1 to 3, characterized in that: The width of the opening (1221) is W1, the width of the groove (124) is W2, and the ratio of W1 to W2 is 0.5-1.

10. The sewage tank according to claim 3, characterized in that: The rotating separation member (130) further includes a third retaining ring (135); The third retaining ring (135) is arranged around a side of the second substrate (131) facing the first substrate (121), and the third retaining ring (135) is located on a side of the scraper (133) facing the center of the rotating separation member (130); The second retaining ring (123) is located between the third retaining ring (135) and the scraper blade (133).

11. The sewage tank according to claim 10, characterized in that: The mounting bracket (120) further includes a fourth retaining ring (125); The fourth retaining ring (125) is located on a side of the first substrate (121) facing the rotating separation member (130), and the fourth retaining ring (125) is located on a side of the second retaining ring (123) facing away from the first retaining ring (122); The third retaining ring (135) is located between the fourth retaining ring (125) and the second retaining ring (123).

12. The sewage tank according to claim 11, characterized in that: The height of the fourth retaining ring (125) is greater than the height of the second retaining ring (123).

13. The sewage tank according to claim 11, characterized in that: The first retaining ring (122), the scraper (133), the second retaining ring (123), the third retaining ring (135) and the fourth retaining ring (125) are interlaced in sequence between the first substrate (121) and the second substrate (131) to form a labyrinth-type air inlet channel, the labyrinth-type air inlet channel being used for settling water vapor, the input end of the labyrinth-type air inlet channel leading to the outside of the rotating separation member (130), and the output end thereof leading to the inside of the rotating separation member (130).

14. The sewage tank according to any one of claims 1 to 3, characterized in that: The plurality of scrapers (133) are evenly spaced and arranged in the groove (124).

15. The sewage tank according to claim 14, characterized in that: The ratio of the distance between adjacent scrapers (133) to the width of the opening (1221) is 0.9 to 1.

1.

16. The sewage tank according to claim 1, characterized in that: The water-gas separation device (100) is arranged close to the top of the dirt storage chamber (210); the opening (1221) of the groove (124) faces the side wall of the box body (200) and maintains a certain distance.

17. The sewage tank according to claim 3, characterized in that: The first separation grid (132) is arranged around the driving motor (110), and a ventilation channel is provided between two adjacent first separation grids (132). The first separation grid (132) rotates under the drive of the driving motor (110).

18. The sewage tank according to claim 3, characterized in that: The scraper (133) and the first separation gate (132) are arranged in a staggered manner on the second substrate (131).

19. The sewage tank according to claim 3, characterized in that: The rotating separation element (130) further comprises a second separation gate (134) located on the second substrate (131), and the second separation gate (134) is connected to the outer side of at least part of the first separation gate (132).

20. The sewage tank according to claim 19, characterized in that: In the axial direction of the rotating separation element (130), the length of the second separation grid (134) is smaller than the length of the first separation grid (132), and the ratio of the length of the second separation grid (134) to the length of the first separation grid (132) is 1:3 to 1:

5.

21. The sewage tank according to claim 20, characterized in that: The number of the second separation gates (134) is equal to the number of the first separation gates (132), and each of the first separation gates (132) is correspondingly connected to one of the second separation gates (134).

22. A sewage tank of a cleaning device, characterized in that: include: A box (200) and a water-gas separation device (100), wherein the box (200) has a dirt storage chamber (210), and the water-gas separation device (100) is in communication with the dirt storage chamber (210); the box (200) is provided with an air intake port and a dirt inlet port, the air intake port being used to extract gas from the dirt storage chamber (210) to form a negative pressure environment in the dirt storage chamber (210), and the dirt inlet port being configured to suck dirt generated during the cleaning process of the cleaning device into the dirt storage chamber (210) under the action of a pressure difference; and the water-gas separation device (100) is arranged on the air intake port, so that the fluid entering the air intake port needs to pass through the water-gas separation device (100); The water-gas separation device (100) comprises a driving motor (110), a mounting bracket (120) and a rotating separation member (130); the driving motor (110) is mounted on the mounting bracket (120); the rotating separation member (130) is sleeved on the driving motor (110) and extends to the mounting bracket (120); the rotating separation member is drivingly connected to the driving motor (110) and rotates on the mounting bracket (120) under the action of the driving motor (110); A first annular retaining ring (122) is provided on one side of the mounting bracket (120) facing the rotating separation member (130), and the first retaining ring (122) is provided with an opening (1221); A scraper (133) that cooperates with the first retaining ring (122) is provided on one side of the rotating separation member (130) facing the mounting bracket (120); the scraper (133) is located on the inner side of the first retaining ring (122); the scraper (133) is used to scrape off dirt around the inner side of the first retaining ring (122) and discharge it from the opening (1221) when the rotating separation member (130) rotates.

23. The sewage tank according to claim 22, characterized in that: The rotating separation member (130) is covered on the driving motor (110) in the form of a separation basket, and the mounting bracket (120) comprises a first substrate (121), and a second annular retaining ring (123) is arranged on a surface of the first substrate (121) facing the rotating separation member (130); The first retaining ring (122) is arranged outside the second retaining ring (123) and is fixed on the first substrate (121), and the first retaining ring (122) and the second retaining ring (123) are arranged at intervals, the first retaining ring (122) and the second retaining ring (123) form a groove (124) on the first substrate (121), the scraper (133) is located in the groove (124), and the opening (1221) is opened on the first retaining ring (122); The rotating separation member (130) comprises a second substrate (131), a plurality of first separation grids (132) and a plurality of scrapers (133); the second substrate (131) is arranged opposite to the first substrate (121); the plurality of first separation grids (132) are all located on a side of the second substrate (131) facing away from the first substrate (121), and the plurality of first separation grids (132) are arranged on the second substrate (131) at intervals; and the plurality of scrapers (133) are located on a side of the second substrate (131) facing the first substrate (121).

24. The sewage tank according to claim 23, characterized in that: The rotating separation member (130) further comprises a third retaining ring (135); the third retaining ring (135) is arranged around a side of the second substrate (131) facing the first substrate (121), and the third retaining ring (135) is located on a side of the scraper (133) facing the center of the rotating separation member (130); the second retaining ring (123) is located between the third retaining ring (135) and the scraper (133); The mounting bracket (120) further comprises a fourth retaining ring (125); the fourth retaining ring (125) is located on a side of the first substrate (121) facing the rotating separation member (130), and the fourth retaining ring (125) is located on a side of the second retaining ring (123) facing away from the first retaining ring (122); the third retaining ring (135) is located between the fourth retaining ring (125) and the second retaining ring (123); The first retaining ring (122), the scraper (133), the second retaining ring (123), the third retaining ring (135) and the fourth retaining ring (125) are interlaced in sequence between the first substrate (121) and the second substrate (131) to form a labyrinth-type air inlet channel, the labyrinth-type air inlet channel being used for settling water vapor, the input end of the labyrinth-type air inlet channel leading to the outside of the rotating separation member (130), and the output end thereof leading to the inside of the rotating separation member (130).

25. A cleaning device, characterized in that: Comprising the sewage tank as described in claim 1 or 22.

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