Sewage collection box and cleaning equipment

Abstract

This application relates to a sewage collection box and a cleaning device. The sewage collection box includes: a box body, a first baffle, an air inlet duct, and a filtering component. The box body has a receiving cavity, an air inlet and an air outlet communicating with the receiving cavity, and the air outlet is located on the upper side of the box body. The first baffle is arranged in the receiving cavity and below the air outlet, and the first baffle encloses a separation cavity with one side open, and the open side is arranged downward. The air inlet duct is arranged in the receiving cavity, one end of which is connected to the air inlet, and the other end extends into the separation cavity through the open side. The filtering component is arranged at the air outlet and is used to allow only the gas flowing through the air outlet to pass through. Compared with the prior art, due to the first baffle, most of the solid and liquid dirt stays in the receiving cavity when entering the air outlet, thus significantly reducing the content of solid and liquid dirt remaining on the filtering component, further significantly improving the separation efficiency of the filtering component, and at the same time reducing the replacement frequency of the filtering component, which helps to improve the cleaning effect of the cleaning device.

Description

Technical Field

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

[0002] The cleaning equipment includes a main body, a dirt collection box, a floor brush assembly, a fan assembly, etc. The dirt collection box is connected to the floor brush assembly and the fan assembly through the main body, and is used to collect the dirt on the ground sucked up by the floor brush assembly when the fan is started. The dirt collection box is separately arranged from the main body, which is convenient for users to dump the dirt and clean the dirt collection box. In order to achieve solid-gas separation / solid-liquid-gas separation in the dirt collection box, a HEPA (High efficiency particulate air Filter) filter assembly is used for filtration in the related art. This filtration method results in high usage costs, and solid substances such as dust are easily adhered to the HEPA filter assembly, making the air outlet efficiency of the filter assembly low, and leading to low separation efficiency of the dirt collection box. Summary of the Invention

[0003] Aiming at the problem of low separation efficiency of the dirt collection box of the cleaning equipment in the prior art, the present application provides a dirt collection box and a cleaning equipment, which have the technical effects of high separation effect and good cleaning effect.

[0004] A dirt collection box includes: a box body having a receiving cavity, an air inlet and an air outlet communicating with the receiving cavity, and the air outlet is located on the upper side of the box body;

[0005] A first baffle is arranged in the receiving cavity and below the air outlet. The first baffle surrounds and forms a separation cavity with one side open, and the open side is arranged downward;

[0006] An air inlet duct is arranged in the receiving cavity, one end of which is connected to the air inlet, and the other end extends into the separation cavity through the open side; and

[0007] A filter assembly is arranged at the air outlet and is used to allow only the gas flowing through the air outlet to pass through.

[0008] In one embodiment, on the plane where the open side is located, the other end of the air inlet duct is eccentrically arranged with respect to the open side.

[0009] In one embodiment, the first baffle has a closed end opposite to the open side, the cross-sectional area of the first baffle gradually increases from the closed end to the end where the open side is located, and the other end of the air inlet duct is arranged relative to the closed end.

[0010] In one embodiment, the first baffle includes a bowl-shaped section and a cylindrical section. The bowl-shaped section has an open end and the closed end disposed opposite to each other. The cylindrical section has a large-diameter end and a small-diameter end disposed away from each other. The small-diameter end is connected to the open end, and the cross-sectional area of the cylindrical section gradually increases from the small-diameter end to the large-diameter end.

[0011] In one embodiment, the other end of the air inlet duct is located inside the cylindrical section.

[0012] In one embodiment, a second baffle is further included. The second baffle is sealingly disposed at the air outlet. The second baffle has an installation channel and an air outlet inlet. The air outlet inlet communicates the installation channel and the interior of the box body. The filter assembly is installed in the installation channel and enables all the air flow flowing through the installation channel to flow through itself.

[0013] The portion of the first baffle projected onto the second baffle in the direction of gravity is located outside the range of the air outlet inlet.

[0014] In one embodiment, the first baffle is suspended on the second baffle by a first bracket.

[0015] In one embodiment, the filter assembly includes a filter net and a second bracket. The filter net is installed on the second bracket, and the second bracket is detachably connected to the box body.

[0016] In one embodiment, a water level detection assembly is further included. The water level detection assembly is disposed in the box body and is used to detect the height of dirt in the box body.

[0017] In one embodiment, the water level detection assembly includes at least a pair of first electrode plates. One end of each of the first electrode plates in each pair of the first electrode plates is installed on the box body and is configured to be connected to the same detection circuit. The other ends of each of the first electrode plates in each pair of the first electrode plates are arranged at the same height inside the box body.

[0018] A cleaning device includes a main body and a sewage collection box in any of the above embodiments detachably installed on the main body.

[0019] For the above sewage collection box, due to the function of the separation cavity in the first baffle, most of the solid-liquid dirt stays in the accommodation cavity when entering the air outlet. Thus, the solid-liquid dirt filtered by the filter assembly is significantly reduced, the content of solid-liquid dirt remaining on the filter assembly is significantly reduced, the separation efficiency of the filter assembly is significantly improved, and at the same time, the replacement frequency of the filter assembly is reduced, which helps to improve the cleaning effect of the cleaning device. Description of the Drawings

[0020] Figure 1 Schematic diagram of the external shape of the sewage collection tank in an embodiment of the present application;

[0021] Figure 2 is Figure 1 Cross-sectional view of the sewage collection tank shown;

[0022] Figure 3 is Figure 1 Cross-sectional view of the sewage collection tank shown in another orientation;

[0023] Figure 4 is Figure 2 Partial structure diagram of the sewage collection tank shown;

[0024] Figure 5 is Figure 1 Exploded view of the sewage collection tank shown;

[0025] Figure 6 Exploded view of the filter assembly in an embodiment of the present application;

[0026] Figure 7 Partial structure schematic diagram of the cleaning device in an embodiment of the present application.

[0027] Explanation of reference numerals:

[0028] Sewage collection tank 100; box body 110; main body 111; accommodation cavity 111a; air inlet 111b; positioning rib 1111; upper shell 112; air outlet 112a; first baffle 120; separation cavity 120a; bowl-shaped section 121; cylindrical section 122; first bracket 123; air inlet duct 130; filter assembly 140; filter net 141; second bracket 142; second sealing ring 143; second baffle 150; air outlet inlet 151; installation channel 152; first sealing ring 153; water level detection assembly 160; first electrode plate 161; buckle 170; button 180; button spring 190; main body 200. Detailed implementation manners

[0029] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0030] 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", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It 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. Therefore, it should not be construed as a limitation to the present application.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0032] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0033] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0034] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0035] The sewage collection box provided by the present application is used to collect dirt and can be applied to cleaning equipment. The cleaning equipment includes a floor washer, a mopping and sweeping integrated machine, a wet vacuum cleaner, etc., and can be a household cleaning equipment, an industrial cleaning equipment or a commercial cleaning equipment, and can be a handheld cleaning equipment or an automatic cleaning equipment, and the specific application method is not limited. In an example, the cleaning equipment not only includes a sewage collection box, but also includes modules such as a fan assembly, a floor brush assembly and a main body. The fan assembly, the floor brush assembly and the sewage collection box are all installed on the main body, and there is an air duct on the main body that connects the three. When in use, the fan assembly works to generate negative pressure, and the dirt on the ground returns to the sewage collection box through the floor brush assembly. Among them, the solid dirt and the liquid dirt stay in the sewage collection box, and the gas flows out of the main body through the fan assembly to achieve the cleaning process. In another example, the cleaning equipment further includes a clean water tank for providing clean water to the floor brush assembly or the ground. Of course, the specific structure of the cleaning equipment is not limited to the above examples. The sewage collection box provided by the present application will be introduced below.

[0036] In some embodiments provided by the present application, please refer to Figure 1 , Figure 2 and Figure 3 , the present application provides a sewage collection box 100, which includes a box body 110, a first baffle 120, an air inlet duct 130 and a filter assembly 140. The box body 110 has a receiving cavity 111a, an air inlet 111b communicating with the receiving cavity 111a, and an air outlet 112a. The air outlet 112a is located on the upper side of the box body 110. The first baffle 120 is disposed in the receiving cavity 111a and below the air outlet 112a. The first baffle 120 encloses a separation cavity 120a with one side open, and the open side is arranged downward. The air inlet duct 130 is disposed in the receiving cavity 111a, one end of which is connected to the air inlet 111b, and the other end extends into the separation cavity 120a through the open side. The filter assembly 140 is disposed at the air outlet 112a for allowing only the gas flowing through the air outlet 112a to pass through.

[0037] In actual operation of the above-mentioned dirt collection box 100, a negative pressure is formed in the accommodation cavity 111a under the action of the fan assembly, and the ground dirt enters the accommodation cavity 111a through the floor brush assembly. The ground dirt (including gas and solid-liquid dirt, and the solid-liquid dirt includes solid dirt and / or liquid dirt) enters the separation cavity 120a through the air inlet duct 130. After entering the separation cavity 120a, the dirt changes its flow direction under the blockage of the first baffle 120. Part of the solid-liquid dirt moves downward and deposits on the bottom of the accommodation cavity 111a under the action of its own gravity. Part of the solid-liquid dirt adheres to the inner wall of the separation cavity 120a and drops along the inner wall of the separation cavity 120a to deposit in the accommodation cavity 111a under the action of its own gravity. A small part of the solid-liquid dirt flows out of the separation cavity 120a along with the changed-direction air flow. Some of this small part of the solid-liquid dirt will collide with the inner wall of the accommodation cavity 111a when following the air flow and adhere to the inner wall of the accommodation cavity 111a, and then drop to the bottom of the accommodation cavity 111a along the inner wall of the accommodation cavity 111a under the action of its own gravity. Part of it is filtered by the filter assembly 140 at the air outlet 112a when flowing through the air outlet 112a and remains on the filter assembly 140, while the gas passes through the filter assembly 140. In this way, when the dirt passes through the air outlet 112a, most of the solid-liquid dirt remains in the accommodation cavity 111a, and only a very small part remains on the filter assembly 140.

[0038] Compared with the prior art, due to the action of the separation cavity 120a in the first baffle 120, most of the solid-liquid dirt stays in the accommodation cavity 111a when entering the air outlet 112a. In this way, the solid-liquid dirt filtered by the filter assembly 140 is significantly reduced, and thus the content of the solid-liquid dirt remaining on the filter assembly 140 is significantly reduced. Furthermore, the separation efficiency of the filter assembly 140 is significantly improved, and at the same time, the replacement frequency of the filter assembly 140 is reduced, which helps to improve the cleaning effect of the cleaning device.

[0039] Among them, "the air outlet 112a is located on the upper side of the box body 110" includes that the air outlet 112a is located at the top of the box body 110 and includes that the air outlet 112a is located at a position of the box body 110 higher than the preset maximum dirt-containing height (such as the upper left side of the side wall of the box body 110, the upper right side of the side wall, etc.). The maximum dirt-containing height of the box body 110 refers to the limit height at which the dirt collection box 100 can accommodate dirt. When the dirt in the dirt collection box 100 exceeds this height, it is easy for the dirt to overflow from the air outlet 112a during the use of the cleaning device, polluting and even damaging the cleaning device. Therefore, when the dirt reaches the maximum dirt-containing height, the dirt collection box 100 needs to be cleaned. Preferably, the air outlet 112a is located at the top of the box body 110. At this time, the space of the accommodation cavity 111a can be utilized more fully to collect dirt, which helps to improve the volume utilization rate of the accommodation cavity 111a, reduce the cleaning frequency of the user, and facilitate the user's use.

[0040] Among them, "arranged with the opening facing downward" includes arranging the opening facing directly downward and arranging the opening facing obliquely downward, as long as the solid-liquid dirt whose movement direction is changed by the first baffle 120 does not stay on the first baffle 120 when moving downward, and can fall along the inner wall of the separation chamber 120a or can directly fall to the bottom of the accommodation chamber 111a through the opening.

[0041] In some embodiments of the present application, please refer back to Figure 2 , on the plane where the opening is located, the other end of the air inlet duct 130 is eccentrically arranged with respect to the opening.

[0042] Among them, "eccentric arrangement" means that on the plane where the opening is located, the center of the opening cross-section does not coincide with the center of the cross-section of the other end of the air inlet duct 130. It can be understood that the flow area of the other end of the air inlet duct 130 is smaller than the flow area of the opening to ensure that the dirt can leave the separation chamber 120a. When the opening and the other end of the air inlet duct 130 are eccentrically arranged, the dirt entering the separation chamber 120a through the air inlet duct 130 mainly collides with the inner wall part of the separation chamber 120a on the side biased towards the air inlet duct 130, thereby changing the movement direction of the dirt. At this time, the dirt falls towards the bottom of the accommodation chamber 111a through the area between the inner wall of the separation chamber 120a far from the air inlet duct 130 and the air inlet duct 130. That is to say, the separation chamber 120a is roughly divided into two regions, one region is biased towards the air inlet duct 130, and the other region is far from the air inlet duct 130. The dirt entering the separation chamber 120a through the air inlet duct 130 is mainly located in the region biased towards the air inlet duct 130, and after changing direction, mainly flows out of the separation chamber 120a through the region far from the air inlet duct 130. At this time, the dirt entering the separation chamber 120a and the dirt flowing out of the separation chamber 120a mainly flow in two different regions, which reduces the interference of the entering dirt on the flow field where the flowing-out dirt is located. Moreover, due to the eccentric setting, the dirt has a certain centrifugal force, and under the action of the centrifugal force, the solid-liquid dirt can accelerate and flow out of the separation chamber 120a, accelerating the separation efficiency and helping to improve the cleaning efficiency.

[0043] In some embodiments of the present application, please refer to Figure 2 and Figure 3 , the first baffle 120 has a closed end arranged opposite to the opening, the cross-sectional area of the first baffle 120 gradually increases from the closed end towards the end where the opening is located, and the other end of the air inlet duct 130 is arranged relative to the closed end.

[0044] Among them, the "cross-sectional area of the first baffle 120" refers to the cross-sectional area perpendicular to the center line of the first baffle 120, and the "center line" refers to the connection line between the midpoint of the closed end and the midpoint of the end where the opening is located.

[0045] At this time, the cross-sectional area of the separation chamber 120a gradually increases from the closed end towards the end where the opening is located. Blocked by the closed end, the dirt basically moves towards the inner wall of the separation chamber 120a. Particularly, when the other end of the air inlet duct 130 is eccentrically arranged with respect to the opening, blocked by the closed end, the dirt basically moves towards the inner wall of the separation chamber 120a on the side away from the air inlet duct 130. In this way, most of the solid and liquid dirt can collide with the separation chamber 120a, further move downward along the inner wall of the separation chamber 120a, or fall along the separation chamber 120a, instead of accumulating at a certain structure in the separation chamber 120a. Moreover, when the dirt flows out of the separation chamber 120a along the inner wall of the separation chamber 120a, the greater the centrifugal force the dirt receives, the more obvious the separation effect between the gas and the solid and liquid dirt, and the separation efficiency is improved.

[0046] Specifically, in some embodiments, please refer back to Figure 2 and Figure 3 , the first baffle 120 includes a bowl-shaped section 121 and a cylindrical section 122. The bowl-shaped section 121 has an open end and a closed end arranged opposite to each other. The cylindrical section 122 has a large-diameter end and a small-diameter end arranged opposite to each other. The large-diameter end is connected to the open end, and the cross-sectional area of the cylindrical section 122 gradually increases from the small-diameter end towards the large-diameter end.

[0047] It should be noted that, in the longitudinal section of the first baffle 120, the bowl-shaped section 121 is arc-shaped. Preferably, the bowl-shaped section 121 and the cylindrical section 122 are integrally formed. In these embodiments, the bowl-shaped section 121 forms an arc-shaped closed end. When the dirt changes direction through the closed end via the air inlet duct 130, the arc-shaped closed end only changes the movement direction of the dirt, with very little loss of the dirt's movement energy, which helps to improve the energy efficiency of the fan and the separation efficiency.

[0048] Of course, the shape of the first baffle 120 is not limited to the above scheme and is not limited in the embodiments of the present application.

[0049] Further preferably, the other end of the air inlet duct 130 is located inside the cylindrical section 122. When the other end of the air inlet duct 130 is inside the cylindrical section 122, the dirt flowing out through the air inlet duct 130 will first spread out in the separation chamber 120a and then collide with the inner wall of the separation chamber 120a to change direction, such that the air pressure change in the area near the other end of the air inlet duct 130 in the separation chamber 120a is small, which can reduce the resistance of the dirt entering the separation chamber 120a through the air inlet duct 130 and improve the fan efficiency.

[0050] In some embodiments of the present application, please refer to Figure 2 and Figure 3, the dirt collection box 100 further includes a second baffle 150. The second baffle 150 is sealingly disposed at the air outlet 112a. The second baffle 150 has an installation channel 152 and an air inlet 151. The air inlet 151 communicates with the installation channel 152 and the internal filter assembly 140 of the box body 110 is installed in the installation channel 152, and all the airflow flowing through the installation channel 152 flows through itself. The portion of the first baffle 120 projected on the second baffle 150 along the gravity direction is outside the range of the air inlet 151.

[0051] During actual operation, when the dirt flows downward from the first baffle 120, most of the solid-liquid dirt falls into the accommodation cavity 111a under its own gravity. The gas in the dirt changes direction and flows upward above the first baffle 120 under the suction force and the light weight characteristics. Since "the portion of the first baffle 120 projected on the second baffle 150 along the gravity direction is outside the range of the air inlet 151", the gas flowing upward above the first baffle 120 will be blocked by the second baffle 150 and change direction to flow toward the air inlet 151. At this time, when colliding with the second baffle 150, most of the small amount of solid-liquid dirt carried in the gas adheres to the second baffle 150 and falls toward the bottom of the accommodation cavity 111a under its own gravity. A very small amount of solid-liquid dirt enters the air inlet 151 along with the turning of the gas. Finally, when passing through the filter assembly 140, a very small amount of solid-liquid dirt stays on the filter assembly 140, and the gas flows through the filter net 141 to the fan assembly and finally flows outside the main body 200. It can be understood that a very small part of the upstream gas also directly flows toward the air inlet 151. Since the amount of gas is very small, the solid-liquid dirt it carries is extremely small and can be filtered by the filter assembly 140.

[0052] At this time, through the setting of the second baffle 150, more solid-liquid dirt can be retained in the accommodation cavity 111a, improving the separation efficiency of the dirt. At the same time, the first baffle 120 is located below the portion of the second baffle 150 except the air inlet 151, which can make most of the upstream gas collide with the second baffle 150, improving the separation efficiency.

[0053] Further, please refer to Figure 2 , there is a first sealing ring 153 between the portion of the second baffle 150 located in the accommodation cavity 111a and the inner wall of the accommodation cavity 111a. The first sealing ring 153 sealingly connects the accommodation cavity 111a and the second baffle 150. During actual operation, the first sealing ring 153 is used to block the water vapor in the dirt from entering the upper side of the box body 110 through the gap between the second baffle 150 and the accommodation cavity 111a, which may affect the electrical parts such as the first electrode plate 161 and the second electrode plate. Of course, it can also improve the tightness of the accommodation cavity 111a and maintain the suction of the whole machine.

[0054] Further, the first baffle 120 is disposed near the lateral side of the box body 110, and the air outlet inlet 151 is disposed near the lateral side of the box body 110. In this way, "the part of the first baffle 120 projected on the second baffle 150 along the gravity direction is located outside the range of the air outlet inlet 151" is realized. Herein, "lateral" refers to the direction perpendicular to the gravity direction.

[0055] Specifically, in some embodiments, please refer to Figure 3 , the first baffle 120 is suspended from the second baffle 150 through the first bracket 123. In this way, the installation of the first baffle 120 is realized. At the same time, compared with installing the first baffle 120 on the side of the box body 110, the obstruction of the bracket to the air flow movement can be reduced, and the wind loss can be reduced. Specifically, the bracket and the second baffle 150 are fixedly connected by screws, bolts, etc., which is convenient for operation, has reliable connection and is affordable. Preferably, the first bracket 123 is in the shape of a thin rod to reduce wind loss.

[0056] In some embodiments of the present application, please refer to Figure 2 , Figure 3 and Figure 6 , the filter assembly 140 includes a filter screen 141 and a second bracket 142. The filter screen 141 is installed on the second bracket 142, and the second bracket 142 is detachably connected to the box body 110.

[0057] In this embodiment, the last separation is completed through a simple filter screen 141. When the filter screen 141 needs to be replaced or cleaned, the second bracket 142 is detached from the box body 110. In this way, the continuous use of the dirt collection box 100 is realized, and the consumables are low compared with the HEPA filter assembly 140. In specific applications, the second bracket 142 is detachably installed in the installation channel 152 of the second baffle 150, such as being detachably clamped, threadedly connected, etc., which is not specifically limited.

[0058] In a preferred embodiment, the filter screen 141 is a washable filter screen 141. "Washable filter screen 141" refers to a filter screen 141 that can remove the dirt remaining on the filter screen 141 through manual cleaning (such as flushing with water) so that the filter screen 141 can be reused. Such as metal filter screen 141, plastic filter screen 141 (such as nylon filter screen 141), etc.

[0059] In a feasible embodiment, please refer to again Figure 2 , Figure 3 and Figure 6, the filtering component 140 further includes a second sealing ring 143. The bracket is mounted on the second sealing ring 143, and the second sealing ring 143 is sealingly connected to the box body 110. At this time, the second sealing ring 143 is used to ensure the sealing connection between the air outlet 112a and the main body 200, avoiding air leakage and affecting the suction of the whole machine. Specifically, the second sealing ring 143 is supported on the upper side of the second baffle 150 and is sealingly connected to the upper shell 112.

[0060] In some embodiments of the present application, please refer to Figure 2 and Figure 3 , the air inlet 111b is located at the bottom of the box body 110, and the air inlet duct 130 extends from the air inlet 111b along the gravity direction towards the separation chamber 120a. At this time, the air inlet 111b is arranged at the bottom of the box body 110. Compared with the air inlet 111b arranged at other positions of the box body 110, it is more convenient for the installation of the dirt collection box 100 and the structural layout of the dirt collection box 100. At the same time, the air inlet duct 130 is a straight channel, which can reduce the resistance to the flowing dirt and improve the energy utilization rate of the whole cleaning device. Of course, in other embodiments, the air inlet 111b can also be arranged on the side of the box body 110, and the shape and setting method of the air inlet duct 130 can also be other ways, which are not specifically limited in the present application. Preferably, one end of the air inlet duct 130 connected to the air inlet 111b is integrally connected to the air inlet 111b, so that the air tightness is good and the sealing cost is reduced.

[0061] In some embodiments of the present application, please refer to Figure 2 and Figure 3 , the dirt collection box 100 further includes a water level detection component 160. The water level detection component 160 is arranged in the box body 110 and is used to detect the height of the dirt in the box body 110. During actual operation, the height of the dirt in the box body 110 is detected by the water level detection component 160. When the height of the dirt exceeds the preset height, the user is reminded to clean the dirt collection box 100 to prevent the dirt from overflowing and damaging the device.

[0062] Specifically in the embodiment, the water level detection component 160 includes at least a pair of first electrode plates 161. One end of each first electrode plate 161 in each pair of first electrode plates 161 is mounted on the box body 110 and is configured to be connected to the same detection circuit, and the other end of each first electrode plate 161 in each pair of first electrode plates 161 is arranged at the same height in the box body 110.

[0063] During actual operation, when the dirt in the box body 110 accumulates to soak the other ends of a pair of first electrode plates 161, the paired first electrode plates 161 conduct electricity at this time, making the detection circuit between them conductive. Then the detector receives the electrical signal and determines that the dirt height has reached the height corresponding to this pair of first electrode plates 161, indicating that the dirt height has reached the preset height, and then reminds the user to clean the dirt collection box 100 to prevent dirt overflow from damaging the equipment.

[0064] At this time, the first electrode plate 161 is used to detect the height of dirt accumulation, with a simple structure and low cost. In other embodiments, the water level detection component 160 also includes structures such as liquid level sensors to detect the dirt height.

[0065] Among them, the detector can be a detector provided on the dirt collection box 100 or a detector provided on the main body 200, which is not limited in this application.

[0066] Preferably, the dirt collection box 100 includes multiple pairs of first electrode plates 161, and each pair of first electrode plates 161 is arranged at different positions at the same height of the box body 110. During actual operation, when the detection circuits of all pairs of first electrode plates 161 are conductive, it indicates that the dirt height in the dirt collection box 100 has reached the preset height, otherwise it has not. For example, when the main body 200 of the cleaning device is tilted, the dirt liquid level is tilted, which may cause the detection circuits of some pairs of first electrode plates 161 to be conductive and the detection circuits of some pairs of first electrode plates 161 not to be conductive. If it is determined that the dirt height has reached the preset height as long as there is a conductive detection circuit, misjudgment will occur. Therefore, by setting multiple pairs of first electrode plates 161, it helps to improve the accuracy of dirt height detection.

[0067] Furthermore, the dirt collection box 100 further includes a second electrode plate, which is installed on the box body 110 and is configured to contact the metal contact on the main body 200 when the dirt collection box 100 is installed on the main body 200.

[0068] During actual operation, the cleaning device can only start the cleaning degree when the dirt collection box 100 is installed on the main body 200. At this time, after the dirt collection box 100 is installed on the main body 200, the second electrode plate on the dirt collection box 100 contacts the metal contact on the main body 200, and an electrical signal will be generated when the metal contact touches the second electrode plate, indicating that the dirt collection box 100 has been installed in place.

[0069] Preferably, both the first electrode sheet 161 and the second electrode sheet are installed on the top of the box body 110. The corresponding main body 200 has at least a pair of first metal contacts and a second metal contact. Each pair of first metal contacts is in one-to-one contact with each first electrode sheet 161 in each pair of first electrode sheets 161, and the second metal contact is in contact with the second electrode sheet. Among them, the first metal contact is used to connect the detector, and the second metal contact can also connect the detector. At this time, the detector can not only judge whether the dirt height reaches the preset height according to the electrical signal generated when the first electrode sheets 161 are conducting, but also judge whether the dirt collection box 100 is installed in place according to the electrical signal generated by the second metal contact.

[0070] In some embodiments of the present application, please refer to Figures 1 to 3 and also refer to Figure 5 , the box body 110 includes a main body 111 and an upper shell 112. The main body 111 has a receiving cavity 111a with one end open and an air inlet 111b communicating with the receiving cavity 111a. The first baffle 120 and the air inlet duct 130 are both located in the receiving cavity 111a; the upper shell 112 covers the opening and has an air outlet 112a communicating with the receiving cavity 111a. The filter assembly 140 is installed at the air outlet 112a of the upper shell 112. The second baffle 150 is installed at the air outlet 112a of the upper shell 112, and the first electrode sheet 161 and the second electrode sheet are installed on the upper shell 112. Specifically, the second baffle 150 is connected to the upper shell 112 through a threaded connector.

[0071] Further, please refer to Figure 2 and Figure 3 , a positioning rib 1111 is further provided at the bottom of the main body 111. When installing the dirt collection box 100, the positioning rib 1111 on the dirt collection box 100 cooperates with the positioning groove on the main body 200 to realize the positioning of the dirt collection box 100 and the main body 200.

[0072] Further, please refer to Figure 4 , the dirt collection box 100 further includes a buckle 170, a button 180 and a button spring 190. The buckle 170 is connected to the upper side of the button 180 and can penetrate the upper shell 112. The button spring 190 is connected to the lower side of the button 180 and is limited between the button 180 and the second baffle 150. During actual operation, when installing the dirt collection box 100 on the cleaning device main body 200, press down the button 180 so that the buckle 170 moves downward and retracts into the upper shell 112. When the dirt collection box 100 is in place, release the button 180. Under the restoring force of the button spring 190, the buckle 170 pops out of the upper shell 112 and mates with the bayonet on the main body 200 that cooperates with the buckle 170, realizing the fixed installation of the dirt collection box 100.

[0073] In the above-mentioned dirt collection box 100, due to the function of the separation cavity 120a in the first baffle 120, most of the solid and liquid dirt stays in the accommodation cavity 111a when entering the air outlet 112a. Thus, the solid and liquid dirt filtered by the filter assembly 140 is significantly reduced, the content of solid and liquid dirt remaining on the filter assembly 140 is significantly reduced, the separation efficiency of the filter assembly 140 is significantly improved, the replacement frequency of the filter assembly 140 is reduced, and it helps to improve the cleaning effect of the cleaning device.

[0074] Based on the same inventive concept, please refer to Figure 7 , in some embodiments of the present application, a cleaning device is further provided. The cleaning device includes a main body 200 and the dirt collection box 100 in any of the above embodiments detachably mounted on the main body 200. Since the cleaning device includes the above-mentioned dirt collection box 100, it includes all the beneficial effects in the above embodiments, which will not be elaborated here. Among them, the dirt collection box 100 is detachably mounted on the main body 200 to facilitate the user to clean the dirt collection box 100.

[0075] In addition, the cleaning assembly further includes a fan assembly, a floor brush assembly, etc. The fan assembly and the floor brush assembly are both mounted on the main body 200, and there is an air duct on the main body 200 connecting the three. During use, the fan assembly operates to generate negative pressure, and the dirt on the ground returns to the dirt collection box 100 through the floor brush assembly. Among them, the solid dirt and the liquid dirt stay in the dirt collection box 100, and the gas flows out of the main body 200 through the fan assembly to achieve the cleaning process. As for the specific structure and specific installation method of the fan assembly and the floor brush assembly, they are not limited and elaborated in the embodiments of the present application.

[0076] Of course, the cleaning assembly may further include modules such as a water tank, a traveling mechanism, a charging stand, etc., which are not specifically limited and elaborated in the embodiments of the present application.

[0077] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0078] The above-described embodiments only represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A sewage collection tank, characterized in that, Comprising: A box body (110) having a receiving cavity (111a), an air inlet (111b) communicating with the receiving cavity (111a), and an air outlet (112a), wherein the air outlet (112a) is located on the upper side of the box body (110); A first baffle (120) disposed in the receiving cavity (111a) and below the air outlet (112a), the first baffle (120) surrounding and forming a separation cavity (120a) with one side open, and the open side is arranged downward; An air inlet duct (130) disposed in the receiving cavity (111a), one end of which is connected to the air inlet (111b), and the other end extends into the separation cavity (120a) through the open side. On the plane where the open side is located, the other end of the air inlet duct (130) is eccentrically arranged with respect to the open side; and A filtering assembly (140) disposed at the air outlet (112a) for allowing only the gas flowing through the air outlet (112a) to pass through; A second baffle (150) hermetically disposed at the air outlet (112a), the second baffle (150) having an installation channel (152) and an air outlet inlet (151), the air outlet inlet (151) communicating the installation channel (152) and the interior of the box body (110), and the filtering assembly (140) is installed in the installation channel (152) and enables all the airflow flowing through the installation channel (152) to flow through itself; The portion of the first baffle (120) projected on the second baffle (150) along the gravity direction is outside the range of the air outlet inlet (151).

2. The sewage collection tank according to claim 1, wherein, The first baffle (120) has a closed end opposite to the open side, and the cross-sectional area of the first baffle (120) gradually increases from the closed end to the end where the open side is located, and the other end of the air inlet duct (130) is arranged relative to the closed end.

3. The sewage collection tank according to claim 2, wherein The first baffle (120) includes a bowl-shaped section (121) and a cylindrical section (122), the bowl-shaped section (121) having an open end and the closed end disposed opposite to each other, the cylindrical section (122) having a large-diameter end and a small-diameter end disposed opposite to each other, the small-diameter end being connected to the open end, and the cross-sectional area of the cylindrical section (122) gradually increases from the small-diameter end to the large-diameter end.

4. The sewage collection tank according to claim 3, wherein, The other end of the air inlet duct (130) is located inside the cylindrical section (122).

5. The sewage collection tank according to claim 1, characterized in that The first baffle (120) is suspended on the second baffle (150) by a first bracket (123).

6. The sewage collection tank according to claim 1, wherein The filtering assembly (140) includes a filter net (141) and a second bracket (142), the filter net (141) being installed on the second bracket (142), and the second bracket (142) is detachably connected to the box body (110).

7. The sewage collection tank according to claim 1, characterized in that, It further includes a water level detection assembly (160) disposed in the box body (110) for detecting the height of dirt in the box body (110).

8. The sewage collection tank according to claim 7, wherein The water level detection component (160) includes at least a pair of first electrode plates (161). One end of each of the first electrode plates (161) in each pair of the first electrode plates (161) is mounted on the box body (110) and is configured to be connected to the same detection circuit, and the other end of each of the first electrode plates (161) in each pair of the first electrode plates (161) is arranged at the same height inside the box body (110).

9. A cleaning device, characterized in that, It includes a main body (200) and a sewage collection box (100) as described in any one of claims 1 to 8 detachably mounted on the main body (200).

Images