Surface cleaning device with sewage collecting function

Abstract

The utility model discloses a surface cleaning device with a sewage collection function, which belongs to the technical field of cleaning equipment and comprises a machine body and a ground brush, a sewage suction port is arranged on the ground brush, a sewage barrel is arranged on the machine body and comprises a barrel body and a barrel cover, the barrel body is provided with a sewage inlet pipe, and the barrel cover is provided with an exhaust passage. The sewage barrel is arranged on the front side or the rear side of the machine body and has an inclined state and a lying state along with the machine body, a separation part is arranged in the sewage barrel and divides an inner cavity of the sewage barrel into a first cavity and a second cavity which are communicated with each other, an upper end opening of the sewage inlet pipe extends into the first cavity, and an inlet of the exhaust channel is formed in the cavity wall of the second cavity; the barrel cover is provided with two sets of liquid level detection pieces extending downwards into the barrel body, and the two sets of liquid level detection pieces are each provided with a detection part located in the first cavity. And the positions of the detection parts on the two groups of liquid level detection pieces are reasonably arranged, so that the liquid level detection pieces are convenient to clean while the working performance of the sewage suction fan is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a surface cleaning device with a sewage collection function. Background Art

[0002] Existing surface cleaning machines generally include a body, a floor brush, a liquid supply component and a dirt suction component. The floor brush is provided with a dirt suction port and a cleaning member driven by a motor. The liquid supply component supplies liquid to the cleaning member so that the cleaning member can absorb the liquid and wet it before wiping the floor. The dirt suction fan provides suction to form a dirt suction airflow that can suck the dirt into a sewage bucket through the dirt suction port.

[0003] In order to enable the surface cleaning machine to clean the floor in low spaces such as under the bed, sofa, and cabinet, the body of some existing surface cleaning machines can be rotated backward at a large angle relative to the floor brush to a lying state, and the lying body can drive the floor brush to extend into the low space for cleaning. Since the sewage bucket is generally arranged on the body, when the sewage bucket lies backward with the body, the height of the suction fan, the sewage bucket, the pipe opening of the sewage inlet pipe in the sewage bucket and other structures decreases with the inclination of the body, and the height difference between the liquid level in the sewage bucket and the suction fan is greatly reduced. When the power of the suction fan remains unchanged, the head of the sewage liquid flowing from the suction port on the floor brush through the sewage inlet pipe into the sewage bucket remains unchanged. When lying down, the sewage liquid flowing from the sewage inlet pipe into the sewage bucket moves toward the suction fan under the action of negative pressure suction and can reach a position closer to the bucket cover. The sewage liquid flowing into the sewage bucket can move to a position closer to the exhaust channel on the bucket cover, and even enter the body to pollute the suction fan.

[0004] Based on the above-mentioned technical defects, some existing sewage buckets use partitions to divide the inner cavity of the sewage bucket into two cavities, one of which is a liquid storage cavity located at the bottom for storing sewage liquid, and the other is a cache cavity surrounding the inlet of the exhaust channel on the bucket cover. The sewage suction fan provides suction to extract the air in the sewage bucket to form a negative pressure inside the sewage bucket. Under the action of negative pressure, the external sewage flows into the liquid storage cavity through the pipe mouth of the sewage inlet pipe, and the air flow passes through the cache cavity and is discharged through the exhaust channel. The cache cavity formed by the partition is used to separate the inlet of the exhaust channel from the sewage in the liquid storage cavity. The sewage liquid must flow through the cache cavity to reach the inlet of the exhaust channel. Therefore, the existence of the cache cavity can consume the energy of the sewage liquid flowing therein, reduce the possibility of surging sewage liquid flowing to the inlet of the exhaust channel, and thereby prevent the sewage liquid from following the air flow toward the sewage suction fan. In order to prevent a small amount of dirty liquid flowing into the buffer chamber from following the air flow and flowing toward the sewage suction fan, and to prevent excessive dirty liquid from entering the buffer chamber, two groups of liquid level detection parts are generally set in the sewage bucket, one of which is inserted into the liquid storage chamber to detect the full state of the liquid, and the other is set in the buffer chamber to detect whether too much dirty liquid enters the buffer chamber. When the dirty liquid reaches the liquid level sensing part in the buffer chamber, the sewage suction fan stops working to prevent excessive dirty liquid from entering the buffer chamber and being pumped to the inlet of the exhaust channel. Since there needs to be a certain interval between the two liquid level sensing parts, the buffer chamber needs to be set larger to meet the setting of the liquid level sensing part, which will squeeze the sewage collection space of the liquid storage chamber and is not conducive to ensuring the sewage collection capacity of the sewage bucket. In the case of a large buffer chamber, a small amount of dirty liquid with a large shaking amplitude in the liquid storage chamber is easy to flow into the buffer chamber, which is easy to cause the liquid level sensing part in the buffer chamber to be misconnected due to the influx of dirty liquid, resulting in false alarms, especially when the sewage bucket lies backward with the fuselage, this situation is more likely to occur. Especially when the sewage bucket is irregular in shape, the center of gravity of the sewage bucket is biased to one side, and the dirty liquid in the sewage bucket will shake more violently or flow to one side when the user pushes and pulls the body, so that the dirty liquid is more likely to flow into the buffer cavity and flow to the suction fan. The dirty liquid leaning to one side of the sewage bucket will also reduce the accuracy of the liquid level detection component in detecting the dirty liquid in the sewage bucket, and it is easy to misjudge that the liquid is full and hold it tightly, forcing the cleaning work to stop, which is not conducive to ensuring the user experience. In addition, when the partition adopts a non-detachable fixed structure, it is not convenient for the user to clean the liquid level detection component in the upper cavity, and the dirt attached to the liquid level detection component will affect the accuracy of the liquid level detection. Utility Model Content

[0005] In order to solve the shortcomings and deficiencies in the above-mentioned prior art, the utility model provides a surface cleaning device with a sewage collection function, and reasonably sets the positions of the detection parts on the two groups of liquid level detection parts to ensure the working performance of the suction fan while making the liquid level detection parts easy to clean.

[0006] In order to achieve the above technical objectives, the utility model provides a surface cleaning device with a sewage collection function, comprising a pivotally connected body and a floor brush, the floor brush is provided with a sewage suction port, the body is provided with a sewage bucket, the sewage bucket comprises a barrel body and a barrel cover, the barrel body is provided with a sewage inlet pipe connected to the sewage suction port, the barrel cover is provided with an exhaust passage, and is characterized in that the sewage bucket is arranged on the front side or the rear side of the body and has an inclined state and a lying state following the body, a partition is provided in the sewage bucket, the partition divides the inner cavity of the sewage bucket into a first chamber and a second chamber that are connected to each other, the upper port of the sewage inlet pipe extends into the first chamber, the inlet of the exhaust passage is located on the cavity wall of the second chamber, and the barrel cover is provided with two groups of liquid level detection parts extending downward into the barrel body, and both groups of liquid level detection parts are provided with detection parts located in the first chamber.

[0007] Preferably, the detection parts on the two groups of liquid level detection parts are lower than the connecting point between the first chamber and the second chamber in the height direction of the sewage bucket; and / or, the detection parts on the two groups of liquid level detection parts are lower than the connecting point between the first chamber and the second chamber in the thickness direction of the sewage bucket.

[0008] Preferably, the two groups of liquid level detection components are respectively a first liquid level detection component and a second liquid level detection component, the height of the first liquid level detection component extending into the first chamber is greater than that of the second liquid level detection component, the first liquid level detection component and the second liquid level detection component are distributed front and back when the sewage bucket is in a tilted state, and the first liquid level detection component and the second liquid level detection component are distributed up and down when the sewage bucket is in a lying state.

[0009] Preferably, the barrel body is provided with a surge plate for blocking the liquid in the first chamber from surging into the second chamber, and the surge plate is provided with at least two at intervals along the height direction of the sewage bucket, and the detection part on the first liquid level detection part is arranged lower than the surge plate in the height direction of the sewage bucket, and the detection part on the second liquid level detection part is arranged higher than at least one of the surge plates in the height direction of the sewage bucket.

[0010] Preferably, a dirt shielding cover which covers the upper port of the dirt inlet pipe in an airtight manner is provided in the first chamber, and two of the first liquid level detecting members and two of the second liquid level detecting members are provided and are respectively located on the left and right sides of the dirt shielding cover.

[0011] Preferably, the detection parts on the two first liquid level detection members are arranged to face away from the dirt shielding cover; and / or the detection parts on the two second liquid level detection members are arranged to face away from the dirt shielding cover.

[0012] Preferably, a dirt shielding cover which covers the upper end of the sewage inlet pipe is provided in the first chamber, the top of the dirt shielding cover is higher than at least a portion of the second chamber in the height direction of the sewage bucket, the inlet of the exhaust passage is arranged above the dirt shielding cover, and the connection between the first chamber and the second chamber is arranged on the outside of the dirt shielding cover in the left and right direction.

[0013] Preferably, the second chamber is nested in the upper front portion of the first chamber, and the second chamber is formed by the partition, a partial side wall of the barrel body and a partial bottom wall of the barrel cover.

[0014] Preferably, the sewage bucket is flat in shape with a left-right width greater than a front-to-back thickness; and / or, the volume of the first chamber is V1, the volume of the second chamber is V2, and 1 / 50≤V2 / V1≤1 / 12.

[0015] Preferably, a connecting port for connecting the first chamber and the second chamber is provided on the partition; and / or a connecting gap for connecting the first chamber and the second chamber is provided between the partition and the inner wall of the barrel.

[0016] After adopting the above technical solution, the utility model has the following advantages:

[0017] 1. The surface cleaning device provided by the utility model utilizes a partition to divide the inner cavity of the sewage bucket into a first chamber and a second chamber which are interconnected. The first chamber serves as a sewage holding chamber, and the second chamber serves as a buffer chamber. The sewage liquid flowing in from the sewage inlet pipe following the sewage suction airflow falls into the first chamber, and the sewage suction airflow passes through the second chamber and then flows to the sewage suction fan through the exhaust channel. The second chamber has a buffering and isolating effect, which can prevent the sewage liquid in the first chamber from following the sewage suction airflow and directly flowing to the exhaust channel, thereby preventing the sewage liquid from easily following the sewage suction airflow and flowing toward the sewage suction fan, thereby ensuring the working performance stability of the sewage suction fan. The barrel cover is provided with two groups of liquid level detection members, and the detection parts of the two groups of liquid level detection members are both located in the first chamber. When the sewage barrel is in an inclined state or a lying state, when any group of liquid level detection members passes through the liquid in the first chamber, it indicates that the sewage barrel has reached the maximum sewage collecting level, and the surface cleaning device stops collecting sewage, thereby avoiding the situation in which a large amount of dirty liquid shaking in the first chamber enters the second chamber and easily follows the sewage suction airflow to flow toward the sewage suction fan, thereby further ensuring the working performance stability of the sewage suction fan. Since the detection parts of the two sets of liquid level detection parts are both located in the first chamber, when there is a lot of dirty liquid in the sewage bucket, no matter the fuselage shakes left and right or up and down, the liquid level sensor can accurately detect the position of the liquid level in the sewage bucket, and promptly detect whether the sewage bucket is already in a situation where there is a lot of dirty liquid, especially when the sewage bucket is in a lying state with the fuselage, the liquid level detection part can promptly detect whether it is full of liquid, so that the sewage suction fan can stop working in time when the liquid is full, avoiding the dirty liquid from being pumped into the fuselage to contaminate the sewage suction fan. At the same time, it is convenient for the user to clean and rinse the detection part of the liquid level detection part after removing the bucket cover, avoiding dirt adhering to the detection part and affecting the detection accuracy.

[0018] 2. In the height direction of the sewage bucket, the detection parts on the two sets of liquid level detection parts are set lower than the connection between the two chambers. In the thickness direction of the sewage bucket, the detection parts on the two sets of liquid level detection parts are also set lower than the connection between the two chambers. When one set of liquid level detection parts fails, the detection parts of the other set of liquid level detection parts can be turned on before the liquid level reaches the connection between the two chambers, preventing the dirty liquid from entering the second chamber, thereby preventing the dirty liquid entering the second chamber from following the sewage suction airflow and flowing toward the sewage suction fan.

[0019] 3. The height of the first liquid level detection member extending into the first chamber is greater than the height of the second liquid level detection member extending into the first chamber. When the sewage bucket is in a tilted state, the first liquid level detection member and the second liquid level detection member are distributed front and back. If the detection part of the first liquid level detection member is connected through the liquid in the first chamber, the dirty liquid in the barrel body reaches the maximum sewage collection level. When the sewage bucket is in a lying state, the first liquid level detection member and the second liquid level detection member are distributed up and down. If the detection part of the second liquid level detection member is connected through the liquid in the second chamber, the dirty liquid in the barrel body reaches the maximum sewage collection level. The distribution relationship of the two groups of liquid level detection members is reasonably set so that the two groups of liquid level detection members can meet the liquid level detection requirements when the sewage bucket is in different states.

[0020] 4. An anti-surge plate is arranged inside the barrel body. At least two anti-surge plates are arranged at intervals along the height direction of the sewage barrel. The anti-surge plates arranged at intervals gradually reduce the surge amplitude of the dirty liquid in the first chamber, so as to prevent the dirty liquid in the first chamber from easily flowing into the second chamber from the connection between the two chambers when the sewage barrel is in a lying state, thereby preventing the dirty liquid flowing into the second chamber from easily following the sewage suction air flow to the sewage suction fan, thereby ensuring the performance stability of the sewage suction fan. The detection part of the first liquid level detection member is arranged lower than the anti-surge plate in the height direction of the sewage barrel, and the height position of the detection part on the first liquid level detection member relative to the anti-surge plate is reasonably set to avoid the anti-surge plate causing detection obstacles to the first liquid level detection member, so that the detection part of the first liquid level detection member can smoothly and timely detect the liquid level in the first chamber. The detection part on the second liquid level detection part is set higher than at least one of the anti-surge plates in the height direction of the sewage bucket. The height position of the detection part of the second liquid level detection part relative to the anti-surge plate is reasonably set. When the sewage bucket is in a lying state, if the detection part of the second liquid level detection part is connected through the dirty liquid, it means that there is too much dirty liquid in the first chamber, and the surge amplitude of the dirty liquid will also be large. The surging dirty liquid is likely to follow the sewage suction airflow through the second chamber to flow to the sewage suction fan, so that the second liquid level detection part can smoothly detect the risk that the dirty liquid is likely to follow the sewage suction airflow to flow to the sewage suction fan when the sewage bucket is in a lying state, thereby ensuring the maximum sewage collecting capacity of the sewage bucket in the lying state while ensuring the working performance stability of the sewage suction fan.

[0021] 5. A dirt shield is set in the first chamber, and the dirty liquid flowing in from the dirt inlet pipe flows down along the dirt shield into the first chamber, which can prevent the dirty liquid from spreading along the partition into the second chamber. The two liquid level detection members in the same group are respectively set on the left and right sides of the dirt shield, and the distribution mode of the two liquid level detection members in the same group is reasonably set, and the distance between the two liquid level detection members in the same group is appropriately increased to avoid the situation where the two liquid level detection members in the same group are set on the same side of the dirt shield and are easily connected by mistake under the surging dirty liquid, causing false alarms.

[0022] 6. The detection parts on the two liquid level detection parts in the same group are arranged with their backs to the dirt shield, that is, the two detection parts of the liquid level detection parts in the same group are arranged with their backs to each other, so as to avoid the surging liquid spreading between the two liquid level detection parts, making it easy for the liquid level detection parts to be mistakenly connected and cause false alarms, thereby improving the accuracy of liquid level detection.

[0023] 7. The inlet of the exhaust channel is arranged above the dirt shielding cover, and the connecting point between the two chambers is arranged on the outside of the dirt shielding cover in the left and right directions. The inlet of the exhaust channel and the connecting point of the two chambers are reasonably arranged relative to the dirt shielding cover, so that the two are not only staggered in the height direction of the sewage bucket, but also staggered in the left and right directions. The sewage suction airflow flowing into the second chamber from the connecting point needs to bypass the dirt shielding cover when flowing toward the inlet of the exhaust channel. The dirt shielding cover is used to change the flow direction of the sewage suction airflow, so that the dirty liquid or water vapor flowing with the sewage suction airflow can be thrown out or blocked by the dirt shielding cover under the centrifugal action, thereby preventing the dirty liquid from following the sewage suction airflow into the sewage suction fan.

[0024] 8. Since the second chamber is nested in the upper part of the front side of the first chamber, when the sewage bucket is in a tilted state with the machine body, the inlet of the exhaust channel on the barrel cover is surrounded by the second chamber. The second chamber is located at a higher position in the sewage bucket, and it is difficult for the dirty liquid to enter the second chamber, which fully ensures that no dirty liquid will enter the exhaust channel. When the sewage bucket rotates backward with the machine body to a lying state, the second chamber is located in the upper part of the sewage bucket, and the second chamber surrounds the inlet of the exhaust channel. The sewage inlet pipe in the barrel body is in a lying state with the sewage bucket. Under the action of the suction force, the dirty liquid flows into the first chamber through the upper port of the sewage inlet pipe. The dirty liquid flowing into the first chamber flows backward and will not flow upward toward the second chamber. When the user pushes and pulls the machine body, the small amount of dirty liquid that shakes and surges upward is difficult to enter the second chamber due to the obstruction of the second chamber wall. Therefore, the layout method of nesting the second chamber in the upper part of the front side of the first chamber can reasonably reduce the volume of the second chamber, and try to ensure the volume of the first chamber under the premise that the sewage bucket adopts a flat structure, thereby ensuring the maximum sewage collection capacity of the sewage bucket. The second chamber is formed by the partition, the partial side wall of the barrel body and the partial bottom wall of the barrel cover. The formation method of the second chamber is reasonably set, and the components of the sewage barrel can be reasonably reduced. When the barrel cover is separated from the barrel body, the second chamber is disassembled, which is convenient for the user to clean and rinse the partition, barrel cover and barrel body constituting the second chamber. This layout method is also more convenient for the setting of the liquid level sensor and the cleaning of the liquid level sensor.

[0025] 9. The sewage bucket is preferably flat with a width from left to right greater than the thickness from front to back, so that the thickness of the sewage bucket can be appropriately reduced while ensuring the capacity of the sewage bucket, thereby reducing the overall thickness of the machine body, so that the machine body can be extended into low spaces such as the bottom of the bed, the bottom of the sofa, and the bottom of the cabinet for cleaning when lying down, better meeting the cleaning needs of users. When the sewage bucket rotates with the machine body to the lying state, the dirty liquid in the sewage bucket is spread flat on the rear side wall of the sewage bucket, and the spreading area of ​​the dirty liquid becomes larger, so that the height of the dirty liquid is reduced, thereby lowering the center of gravity of the sewage bucket as a whole, which can reduce the amplitude of the shaking of the dirty liquid in the sewage bucket, thereby reducing the probability of the dirty liquid shaking and pouring into the second chamber.

[0026] The ratio of the two chambers is reasonably set to ensure the sewage collection capacity of the first chamber while ensuring the size of the second chamber, thereby ensuring the buffering effect of the second chamber on the influx of sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the surface cleaning device of Example 1 in a placement state;

[0028] Figure 2 It is a structural diagram of a floor brush in a surface cleaning device of Example 1;

[0029] Figure 3 It is a schematic diagram of the surface cleaning device of Example 1 when the body is in a tilted state;

[0030] Figure 4 It is a schematic diagram of the surface cleaning device of Example 1 when the body is in a lying state;

[0031] Figure 5 An exploded view of a sewage bucket in a surface cleaning device in Example 1;

[0032] Figure 6 It is a structural diagram of a sewage bucket cover in a surface cleaning device of Example 1;

[0033] Figure 7 A cross-sectional view of a sewage bucket in a surface cleaning device according to Embodiment 1 along the front-to-back direction Figure 1 ;

[0034] Figure 8 A cross-sectional view of a sewage bucket in a surface cleaning device according to Embodiment 1 along the front-to-back direction Figure 2 ;

[0035] Fig. 9 It is a schematic diagram of a surface cleaning device in Example 1 when the sewage bucket is in a tilted state;

[0036] Fig.10 It is a schematic diagram of a sewage bucket in a surface cleaning device of Example 1 when it is in a lying state;

[0037] Fig.11It is a structural diagram of the sewage bucket cover in the surface cleaning device of the second embodiment;

[0038] Fig.12 This is a structural diagram of a sewage bucket cover in the surface cleaning device of Example 3;

[0039] Fig.13 is a cross-sectional view of a sewage bucket in the surface cleaning device of Example 3 along the front-to-back direction;

[0040] Fig.14 It is a structural diagram of a sewage bucket cover in the surface cleaning device of the fourth embodiment;

[0041] Fig.15 This is a structural diagram of a sewage bucket cover in a surface cleaning device in Example 5;

[0042] Fig.16 This is a structural diagram of the sewage bucket cover in the surface cleaning device of Example 6.

[0043] In the figure, 100-body, 110-handle bar, 120-contact point,

[0044] 200-floor brush, 210-sewage suction port, 220-floor brush body, 230-front cover, 240-installation cavity, 250-cleaning part, 260-scraping part, 270-floor scraper, 280-sewage suction channel,

[0045] 300-sewage barrel, 310-barrel body, 311-sewage inlet pipe, 320-barrel cover, 321-exhaust channel, 321a-inlet, 321b-outlet, 330-dirt shield, 340-anti-surge plate, 341-first anti-surge plate, 342-second anti-surge plate, 324a-first plate body, 342b-second plate body, 343-third anti-surge plate, 344-fourth anti-surge plate, 350-partition, 351- rear plate, 352-bottom plate, 353-connecting port, 361-first chamber, 362-second chamber, 370-liquid level detection member, 370a-first liquid level detection member, 370b-second liquid level detection member, 371-detection part, 371a-first detection part, 371b-second detection part, 381-upper cover shell, 382-lower cover shell, 383-accommodation chamber, 384-top plate, 385-contact sheet, 390-filter,

[0046] 410-clean water bucket, 420-water distribution parts,

[0047] 500-sewage suction fan,

[0048] 600-Control panel. DETAILED DESCRIPTION

[0049] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following words indicating orientation or positional relationship such as "upper", "lower", "left", "right", "longitudinal", "lateral", "inner", "outer", "vertical", "horizontal", "top", "bottom", etc. are only based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0050] Embodiment 1

[0051] Combination Figures 1 to 10 A surface cleaning device with a sewage collection function provided in a first embodiment of the utility model includes a body 100 and a floor brush 200 which are pivotally connected. The floor brush 200 is provided with a sewage suction port 210. The body 100 is provided with a sewage bucket 300. The sewage bucket 300 includes a barrel body 310 and a barrel cover 320. The barrel body 310 is provided with a sewage inlet pipe 311 connected to the sewage suction port 210, and the barrel cover 320 is provided with an exhaust channel 321. The sewage bucket 300 is arranged on the front side or the rear side of the fuselage 100 and has a tilted state and a lying state following the fuselage 100. A partition 350 is provided in the sewage bucket 300, and the partition 350 divides the inner cavity of the sewage bucket 300 into a first chamber 361 and a second chamber 362 which are interconnected. The upper end of the sewage inlet pipe 311 extends into the first chamber 361, and the inlet 321a of the exhaust channel 321 is located on the cavity wall of the second chamber 362. The barrel cover 320 is provided with two groups of liquid level detection parts 370 extending downward into the barrel body 310, and the two groups of liquid level detection parts 370 are both provided with a detection part 371 located in the first chamber 361.

[0052] The partition 350 is used to divide the inner cavity of the sewage bucket 300 into a first chamber 361 and a second chamber 362 which are interconnected. The first chamber 361 serves as a sewage holding chamber, and the second chamber 362 serves as a buffer chamber. The sewage liquid flowing in from the sewage inlet pipe 311 following the sewage suction airflow falls into the first chamber 361, and the sewage suction airflow passes through the second chamber 362 and then flows to the sewage suction fan 500 through the exhaust channel 321. The second chamber 362 has a buffering and isolating function, which can prevent the sewage liquid in the first chamber 361 from following the sewage suction airflow and directly flowing to the exhaust channel 321, thereby preventing the sewage liquid from easily following the sewage suction airflow and flowing toward the sewage suction fan 500, thereby ensuring the working performance stability of the sewage suction fan 500. The barrel cover 320 is provided with two groups of liquid level detection members 370, and the detection parts 371 of the two groups of liquid level detection members 370 are both located in the first chamber 361. When the sewage barrel 300 is in a tilted state or a lying state, when any group of liquid level detection members 370 passes through the liquid in the first chamber 361, it indicates that the sewage barrel 300 has reached the maximum sewage collecting level, and the surface cleaning device stops collecting sewage, avoiding the situation in which the dirty liquid shaking in the first chamber 361 enters the second chamber 362 in large quantities and easily follows the sewage suction airflow to flow toward the sewage suction fan 500, further ensuring the working performance stability of the sewage suction fan 500. Since the detection parts 371 of the two groups of liquid level detection parts 370 are both located in the first chamber 361, when there is a lot of dirty liquid in the sewage bucket 300, no matter the body 100 shakes left and right or shakes up and down, the liquid level sensing part 370 can accurately detect the position of the liquid level in the sewage bucket 300, and timely detect whether the sewage bucket 300 is already in a situation where there is a lot of dirty liquid, especially when the sewage bucket 300 is in a lying state following the body 100, the liquid level detection part 370 can timely detect whether it is full of liquid, so that the sewage suction fan can stop working in time when the liquid is full, avoiding the dirty liquid from being pumped into the body 100 to contaminate the sewage suction fan, and at the same time, it is convenient for the user to clean and rinse the detection part 371 of the liquid level detection part 370 after removing the bucket cover 320, avoiding dirt adhering to the detection part 371 and affecting the detection accuracy.

[0053] Combination Figure 1 In this embodiment, a handle bar 110 is provided at the top of the body 100, and the bottom of the body 100 is pivotally connected to the rear side of the floor brush 200. Figure 2The floor brush 200 includes a floor brush body 220 and a front cover 230 that can be detachably mounted on the front side of the floor brush body 220. When the front cover 230 is snap-fitted and mounted on the front side of the floor brush body 220, the two cooperate to form an installation cavity 240. A cleaning member 250 driven by a motor is arranged in the installation cavity 240. The cleaning member 250 can adopt a single roller brush structure, a double roller brush structure with a front and rear interval, or a crawler mop structure with two rollers of the same outer diameter or a thin front and a thick rear. No excessive restrictions are made here. The surface cleaning device also includes a clean water bucket 410 for supplying liquid to the cleaning member 250. The clean water bucket 410 can be detachably mounted on the front or rear side of the body 100. The liquid in the clean water bucket 410 can be sprayed to the cleaning member 250 through the water dividing member 420 on the floor brush 200 under the pumping action of the pump, so that the cleaning member 250 can absorb liquid and moisten. As a preferred solution of this embodiment, the water distribution member 420 can adopt the prior art method of dividing a water inlet waterway into two N (N is a natural number) to divert the water into multiple outlet waterways.

[0054] In this embodiment, the sewage suction port 210 is arranged on the floor brush body 220 in the middle of the left and right sides, and the sewage suction port 210 is located behind the installation cavity 240 and communicated with the installation cavity 240. A scraping member 260 for scraping the cleaning member 250 is arranged above the sewage suction port 210, and an elastic floor scraper 270 is arranged below the sewage suction port 210. A sewage suction channel 280 for connecting the sewage suction port 210 and the sewage bucket 300 is arranged between the body 100 and the floor brush 200, one end of the sewage suction channel 280 is communicated with the sewage suction port 210, and the other end of the sewage suction channel 280 is detachably connected to the lower end of the sewage inlet pipe 311.

[0055] The sewage bucket 300 can be detachably mounted on the body 100. A sewage suction fan 500 is provided in the body 100 and is located above the sewage bucket 300. When the sewage suction fan 500 is working, it provides suction force to form a sewage suction airflow flowing in from the sewage suction port 210. The sewage suction airflow flows into the sewage bucket 300 through the sewage suction channel 280 and the sewage inlet pipe 311, and then flows out of the sewage bucket 300 through the exhaust channel 321. A control panel 600 is also provided in the body 100. The sewage suction fan 500, the motor, the pump and other electrical components are controlled by the control panel 600. As an alternative to this embodiment, the sewage suction fan 500 can also be used as a component of the suction power source assembly. The suction power source assembly can be detachably mounted on the body 100, and the suction power source assembly can be connected to a dust suction accessory for dry dust suction.

[0056] In this embodiment, the sewage bucket 300 is detachably mounted on the rear side of the body 100. The width of the sewage bucket 300 in the left-right direction is greater than the thickness in the front-back direction, so that the sewage bucket 300 is flat, and the thickness of the sewage bucket 300 can be appropriately reduced while ensuring the capacity of the sewage bucket 300, thereby reducing the overall thickness of the body 100, so that the body 100 can be extended into low spaces such as the bottom of the bed, the bottom of the sofa, and the bottom of the cabinet for cleaning when lying down, thereby better meeting the cleaning needs of the user. When the sewage bucket 300 rotates with the body 100 to the lying state, the dirty liquid in the sewage bucket 300 is spread on the rear side wall of the sewage bucket 300, and the spreading area of ​​the dirty liquid becomes larger, so that the height of the dirty liquid is reduced, thereby reducing the overall center of gravity of the sewage bucket 300, and the amplitude of the shaking of the dirty liquid in the sewage bucket 300 can be reduced, thereby reducing the probability of the dirty liquid shaking and pouring into the second chamber 362. Since the sewage bucket 30 is flat, the width of the bucket cover 320 in the left-right direction is greater than the thickness in the front-back direction. It is understandable that the clean water bucket 410 and the dirty water bucket 300 can be arranged on the front or rear side of the fuselage 100 at the same time, or they can be arranged on the front and rear sides of the fuselage 100 respectively. The clean water bucket 410 can also be arranged on the top of the floor brush 200.

[0057] Combination Figure 3 When the user is standing and using the surface cleaning device of this embodiment to perform routine cleaning on the floor, the body 100 is in a backward tilted state relative to the floor brush 200. At this time, the sewage bucket 300 is in a tilted state, and the body 100 has an angle α relative to the floor. The angle α is generally between 45° and 80°. Figure 4 When the user is in a squatting state and uses the surface cleaning device of this embodiment to clean the floor in a low space, the body 100 is in a lying state relative to the floor brush 200. At this time, the sewage bucket 300 is in a lying state, and the body 100 has an angle β with respect to the ground, and the angle β is generally between 0° and 15°.

[0058] Combination Figure 7 The sewage inlet pipe 311 extends from the bottom wall of the barrel body 310 toward the barrel cover 320, and the upper and lower ends of the sewage inlet pipe 311 are open, and the lower end of the sewage inlet pipe 311 can be connected with the sewage suction port 210 through the sewage suction channel 280. In this embodiment, when the sewage bucket 300 follows the body 100 to lie backward, in order to prevent the sewage in the first chamber 361 from flowing back from the sewage inlet pipe 311 to the sewage suction port 210, the sewage inlet pipe 311 is preferably arranged at the front side of the barrel body 310 and close to the front side wall of the barrel body 310, so that the upper end of the sewage inlet pipe 311 can be located at a higher position in the first chamber 361 as much as possible when the sewage bucket 300 follows the body 100 to lie backward. The sewage inlet pipe 311 can be integrally formed with the barrel body 310, or the sewage inlet pipe 311 can be separately formed and then fixed in the barrel body 310.

[0059] Combination Figure 5 , Figure 6 In this embodiment, the barrel cover 320 mainly includes an upper cover shell 381 and a lower cover shell 382 fixed together, and the upper cover shell 381 and the lower cover shell 382 cooperate to form a receiving chamber 383 with an open top side. The sewage barrel 300 also includes a filter element 390 detachably installed in the receiving chamber 383. The suction airflow is filtered by the filter element 390 and then flows to the suction fan 500. As a preferred solution of this embodiment, the filter element 390 includes a filter screen and a HEPA element. The filter screen is located at the bottom of the HEPA element. The filter screen can perform gas-solid separation on the suction airflow, and the HEPA element can perform gas-liquid separation on the suction airflow. As an optional solution of this embodiment, the cavity wall of the receiving chamber 383 can be formed by the upper cover shell 381, or by the lower cover shell 382, ​​or by the upper cover shell 381 and the lower cover shell 382.

[0060] Combination Figure 8 As a preferred solution of this embodiment, the second chamber 362 is nested in the upper part of the front side of the first chamber 361, and the second chamber 362 is formed by the partition 350, the partial side wall of the barrel body 310 and the partial bottom wall of the barrel cover 320. The two chambers preferably adopt an embedded layout, which can reasonably reduce the thickness of the second chamber 362, and ensure the volume of the first chamber 361 as much as possible under the premise that the sewage barrel 300 adopts a flat structure, thereby ensuring the maximum sewage collection capacity of the sewage barrel 300. In this embodiment, the partition 350 is preferably integrally formed with the lower cover shell 382, ​​and the partition 350 includes a rear plate 351 and a bottom plate 352. The rear plate 351 extends downward from the lower cover shell 382, ​​and the bottom plate 352 is roughly perpendicular to the height direction of the sewage bucket 300. The rear edge of the bottom plate 352 is connected to the lower edge of the rear plate 351. When the barrel cover 320 covers the barrel body 310, the rear plate 351 and the bottom plate 352 of the partition 350, the lower cover shell 382 of the barrel cover 320 and the partial front side wall of the barrel body 310 enclose to form a second chamber 362, and the other parts of the inner cavity of the sewage bucket 300 constitute the first chamber 361.

[0061] The volume of the first chamber 361 is V1, the volume of the second chamber 362 is V2, and 1 / 50≤V2 / V1≤1 / 12. In this embodiment, the height ratio of the second chamber 362 to the first chamber 361 in the height direction is about 1 / 5 to 1 / 4, the thickness ratio of the second chamber 362 to the first chamber 361 in the front-to-back direction is about 1 / 5 to 1 / 3, and the width ratio of the second chamber 362 to the first chamber 361 in the left-to-right direction is about 1 / 2 to 1. It can be understood that the height ratio of the second chamber 362 to the first chamber 361 can be set to a reasonable size such as 0.2, 0.22, 0.24, 0.25, the thickness ratio of the second chamber 362 to the first chamber 361 can be set to a reasonable size such as 0.2, 0.22, 0.24, 0.26, 0.28, 0.3, 0.32, 0.33, etc., and the width ratio of the second chamber 362 to the first chamber 361 can be set to a reasonable size such as 0.5, 0.6, 0.7, 0.8, 0.9, 1, etc.

[0062] Combination Figure 6In this embodiment, a connecting port 353 for connecting the two chambers is provided on the partition 350, and the connecting port 353 is preferably provided on the rear plate 351. In order to prevent the dirty liquid flowing into the sewage bucket 300 from the sewage inlet pipe 311 from splashing everywhere following the sewage suction airflow, a dirt shield 330 is provided in the first chamber 361 to cover the upper end of the sewage inlet pipe 311. The lower edge of the dirt shield 330 is lower than the bottom plate 352 of the partition 350 in the height direction of the sewage bucket 300, and the dirty liquid flowing into the sewage bucket 300 from the sewage inlet pipe 311 flows downward along the dirt shield 330 into the first chamber 361. In order to make the connecting port 353 and the inlet 321a of the exhaust passage 321 be staggered as much as possible, the top wall of the dirt shield 330 is higher than the bottom plate 352 of the partition 350 and lower than the lower cover shell 382 in the height direction of the sewage bucket 300, so that the top of the dirt shield 330 is higher than the part of the second chamber 362 in the height direction of the sewage bucket 300, the inlet 321a of the exhaust passage 321 is arranged above the dirt shield 330, and the connecting port 353 is arranged on the left and right outer sides of the dirt shield 330, so that the connecting port 353 and the exhaust passage 321 are staggered as much as possible. The inlet 321a of the duct 321 is not only staggered in the height direction of the sewage bucket 300, but also staggered in the left and right directions. The sewage airflow flowing from the connecting port 353 into the second chamber 362 needs to bypass the dirt shield 330 when flowing toward the inlet 321a of the exhaust duct 321. The dirt shield 330 is used to change the flow direction of the sewage airflow, so that the dirty liquid or water vapor following the sewage airflow can be thrown out or blocked by the dirt shield 330 under the centrifugal effect, thereby preventing the dirty liquid from following the sewage airflow into the sewage suction fan 500. As an optional solution of this embodiment, the dirt shield 330, the partition 350 and the lower cover shell 382 can be integrally formed or separately formed and then fixed together. The dirt shield 330 can also be independently set and detachably installed in the first chamber 361 through cooperation with the sewage inlet pipe 311. As an optional solution of this embodiment, the communication port 353 can be provided only on the left side of the dirt shielding cover 330 , or only on the right side of the dirt shielding cover 330 , or the communication port 353 can be provided on both the left and right sides of the dirt shielding cover 330 .

[0063] Combination Figure 7 The exhaust channel 321 is roughly located between the top wall of the dirt shield 330 and the lower cover shell 382, ​​the inlet 321a of the exhaust channel 321 is arranged on the rear plate 351, and the outlet 321b of the exhaust channel 321 is directly connected to the accommodating chamber 383, so that the suction airflow flowing out of the exhaust channel 321 can be directly filtered by the filter element 390.

[0064] In this embodiment, the two groups of liquid level detection members 370 are respectively a first liquid level detection member 370a and a second liquid level detection member 370b. The height of the first liquid level detection member 370a extending into the first chamber 361 is greater than the height of the second liquid level detection member 370b extending into the first chamber 361. The first liquid level detection member 370a and the second liquid level detection member 370b are spaced apart along the thickness direction of the sewage bucket 300. When the sewage bucket 300 is in a tilted state, the first liquid level detection member 370a and the second liquid level detection member 370b are distributed front and back. When the sewage bucket 300 is in a lying state, the first liquid level detection member 370a and the second liquid level detection member 370b are distributed up and down.

[0065] Two first liquid level detection members 370a are provided and are respectively located on the left and right sides of the dirt shield 330, and the lower ends of the two first liquid level detection members 370a are provided with a first detection portion 371a. Two second liquid level detection members 370b are also provided and are respectively located on the left and right sides of the dirt shield 330, and the lower ends of the two second liquid level detection members 370b are provided with a second detection portion 371b. In this embodiment, both groups of liquid level detection members include an outer shell and a detection electrode inserted in the outer shell, and the outer shell is provided with a through opening at the lower end, and the portion of the detection electrode exposed at the through opening constitutes the detection portion 371. Preferably, the height of the first liquid level detection member 370a extending into the barrel body 310 is about 1 / 2 of the barrel body, and the height of the second liquid level detection member 370b extending into the barrel body 310 is about 1 / 3 of the barrel body. In the thickness direction of the sewage barrel 300 , the distance between the first liquid level detection member 370 a and the rear side wall of the barrel body 310 is approximately 1 / 2 of the thickness of the first chamber 361 , and the distance between the second liquid level detection member 370 b and the rear side wall of the barrel body 310 is approximately 1 / 3 of the thickness of the first chamber 361 .

[0066] In this embodiment, the first detection part 371a is arranged lower than the second detection part 371b in the height direction of the sewage bucket 300. In order to avoid the situation that the two detection parts of the same group of liquid level detection parts are easily mistakenly connected under the surging sewage and cause false alarms, the detection parts on the first liquid level detection part 370a and the second liquid level detection part 370b are both arranged to face away from the dirt shield 330, so that the two first detection parts 371a and the two second detection parts 371b are all arranged to face away from each other.

[0067] As a preferred solution of this embodiment, the detection parts 371 on the two groups of liquid level detection parts are arranged lower than the connecting port 353 in both the height direction and the thickness direction of the sewage bucket 300. When one group of liquid level detection parts fails, the detection part 371 of the other group of liquid level detection parts can be turned on before the liquid level reaches the connecting point of the two chambers, so as to prevent the dirty liquid from entering the second chamber 362, thereby preventing the dirty liquid entering the second chamber 362 from following the sewage suction airflow and flowing toward the sewage suction fan 500.

[0068] In order to prevent the surging dirty liquid in the first chamber 361 from flowing into the second chamber 362 through the connecting port 353, a surge prevention plate 340 is provided in the barrel body 310 for preventing the liquid in the first chamber 361 from flowing into the second chamber 362. The surge prevention plate 340 greatly reduces the surge amplitude of the dirty liquid in the first chamber 361, thereby preventing the dirty liquid in the first chamber 361 from flowing into the second chamber 362 from the connecting port 353 when the sewage bucket 300 is in a lying state, thereby preventing the dirty liquid flowing into the second chamber 362 from flowing to the sewage suction fan 500 along with the sewage suction airflow, thereby ensuring the performance stability of the sewage suction fan 500. In this embodiment, the surge prevention plate 340 is provided at the lower end of the dirt shield 330, and the surge prevention plate 340 is preferably formed integrally with the dirt shield 330. In order to allow the sewage suction airflow to flow smoothly from the first chamber 361 to the second chamber 362, the front portion of the anti-surge plate 340 is provided with a plurality of small holes for the sewage suction airflow to flow through, or a gap for the sewage suction airflow to flow through is provided between the front side of the anti-surge plate 340 and the front side wall of the barrel body 310. The first liquid level detection member 370a passes through the anti-surge plate 340 downward, and the first detection portion 371a is arranged lower than the anti-surge plate 340 in the height direction of the sewage bucket 300. The second liquid level detection member 370b does not pass through the anti-surge plate 340, and the second detection portion 371b is arranged higher than the anti-surge plate 340 in the height direction of the sewage bucket 300.

[0069] Combination Figure 5 In this embodiment, the barrel cover 320 further includes a top plate 384 fixed to the top side, and the top plate 384 is provided with a plurality of contact pieces 385 spaced apart from each other. The detection electrodes of the two first liquid level detection members 370a are electrically connected to two different contact pieces, and the detection electrodes of the two second liquid level detection members 370b are also electrically connected to two different contact pieces. Figure 1 The body 100 is provided with a contact 120 corresponding to the contact sheet 385, and the contact 120 is electrically connected to the control board 600. When the sewage bucket 300 is installed on the body 100, the contact sheet 385 abuts against the contact 120, so that the detection electrode of the liquid level detection member 370 is electrically connected to the control board 600.

[0070] In this embodiment, a sealing ring is provided on the circumference of the barrel cover 320, and sealing strips are provided at the positions where the partition 350 and the dirt shield 330 cooperate with the side wall of the barrel body 310. When the barrel cover 320 covers the barrel body 310, the sealing ring and the sealing strip both contact the inner wall of the barrel body 310.

[0071] Combination Fig. 9When the sewage bucket 300 is in a tilted state, the two groups of liquid level detection members are basically distributed front and back. When the first detection parts 371a on the two first liquid level detection members 370a are connected through the dirty liquid in the first chamber 361, the control board 600 determines that the sewage bucket 300 has reached the maximum sewage collecting level according to the conduction signal of the first liquid level detection member 370a. The control board 600 can command the sewage suction fan 500 to stop working and can make a prompt to remind the user to clean the sewage bucket 300.

[0072] Combination Fig.10 When the sewage bucket 300 is in a lying state, the two groups of liquid level detection members are basically distributed up and down. The dirty liquid in the first chamber 361 is easy to surge when the user pushes and pulls the body 100 forward and backward. The anti-surge plate 340 blocks the surging dirty liquid to reduce the surge amplitude of the dirty liquid, and prevents the dirty liquid in the first chamber 361 from surging into the second chamber 362 through the connecting port 353. Some of the dirty liquid with a large surge amplitude will pass over the anti-surge plate 340 and be located behind the anti-surge plate 340. When the first detection parts 371a on the two first liquid level detection members 370a or the second detection parts 371b on the two second liquid level detection members 370b pass through the dirty liquid in the first chamber 361, the control board 600 determines that the sewage bucket 300 has reached the maximum sewage collection level according to the conduction signal, and the control board 600 can command the sewage suction fan 500 to stop working, and can make a prompt to remind the user to clean the sewage bucket 300.

[0073] As an alternative to this embodiment, a notch may be provided at the lower portion of the left and right edges of the rear plate 351. When the barrel cover 320 covers the barrel body 310, the notch cooperates with the side wall of the barrel body 310 to form a connecting gap for connecting the two chambers. The connecting gap is higher than the maximum sewage collection level and the detection portion 371 of the liquid level detection member 370 in both the height direction and the thickness direction of the sewage barrel 300. The connecting gap and the above-mentioned connecting port 353 may be provided selectively or simultaneously.

[0074] As an alternative to this embodiment, the first liquid level detecting member 370 a or the second liquid level detecting member 370 b may also pass through the second chamber 362 and extend downward into the first chamber 361 .

[0075] Embodiment 2

[0076] Combination Fig.11In this embodiment, two surge-proof plates 340 are arranged at intervals along the height direction of the sewage bucket 300, namely, a first surge-proof plate 341 and a second surge-proof plate 342. Both surge-proof plates 340 are flat and arranged perpendicular to the height direction of the sewage bucket 300. The first detection portion 371a of the first liquid level detection member 370a is arranged lower than the first surge-proof plate 341 in the height direction of the sewage bucket 300, and the second detection portion 371b of the second liquid level detection member 370b is located between the two surge-proof plates 340 in the height direction of the sewage bucket 300. The two surge-proof plates 340 are used to gradually reduce the surge amplitude of the sewage in the first chamber 361, so as to prevent the sewage in the first chamber 361 from flowing into the second chamber 362 from the connecting port 353 or the connecting gap when the sewage bucket 300 is in a lying state, thereby preventing the sewage flowing into the second chamber 362 from easily following the sewage suction airflow to flow to the sewage suction fan, thereby ensuring the performance stability of the sewage suction fan.

[0077] The other structures of the second embodiment are the same as those of the first embodiment and will not be described in detail here.

[0078] Embodiment 3

[0079] Combination Fig.12 , Fig.13 In this embodiment, two surge-proof plates 340 are arranged at intervals along the height direction of the sewage bucket 300, and they are respectively a first surge-proof plate 341 and a second surge-proof plate 342. The first surge-proof plate 341 is in the shape of a plate and is arranged perpendicularly to the height direction of the sewage bucket 300. The second surge-proof plate 342 includes a first plate body 342a and a second plate body 342b arranged in an L shape. The first plate body 342a is in the shape of a plate and is arranged perpendicularly to the height direction of the sewage bucket 300. The second plate body 342b is in the shape of a plate and is arranged parallel to the height direction of the sewage bucket 300. The first plate body 342a is arranged lower than the partition 350 in the height direction of the sewage bucket 300. The second plate body 342b extends from the front edge of the first plate body 342a toward the bottom wall of the barrel body 310. The lower edge of the second plate body 342b is arranged slightly higher than the first surge-proof plate 341 in the height direction of the sewage bucket 300. The first detection portion 371a of the first liquid level detection member 370a is arranged lower than the first surge protection plate 341 in the height direction of the sewage bucket 300, and the second detection portion 371b of the second liquid level detection member 370b is located between the first plate body 342a and the first surge protection plate 341 in the height direction of the sewage bucket 300. The detection portions of the two sets of liquid level detection members are both located between the second plate body 342b and the rear side wall of the barrel body 310 in the thickness direction of the sewage bucket 300.

[0080] The other structures of the third embodiment are the same as those of the first embodiment and will not be described in detail here.

[0081] Embodiment 4

[0082] Combination Fig.14 In this embodiment, two surge-proof plates are arranged at intervals along the height direction of the sewage bucket 300, and they are respectively a first surge-proof plate 341 and a second surge-proof plate 342. The first surge-proof plate 341 is in the shape of a plate and is arranged perpendicularly to the height direction of the sewage bucket 300. The second surge-proof plate 342 includes a first plate body 342a and a second plate body 342b arranged in a T-shape. The first plate body 342a is in the shape of a plate and is arranged perpendicularly to the height direction of the sewage bucket 300. The second plate body 342b is in the shape of a plate and is arranged parallel to the height direction of the sewage bucket 300. The first plate body 342a is arranged lower than the partition 350 in the height direction of the sewage bucket 300. The upper edge of the second plate body 342b is connected to the lower cover shell 382, ​​and the lower edge of the second plate body 342b is arranged higher than the first surge-proof plate 341 in the height direction of the sewage bucket 300. The first detection portion 371a of the first liquid level detection member 370a is arranged lower than the first surge protection plate 341 in the height direction of the sewage bucket 300, and the second detection portion 371b of the second liquid level detection member 370b is located between the first plate body 342a and the first surge protection plate 341 in the height direction of the sewage bucket 300. The detection portions of the two sets of liquid level detection members are both located between the second plate body 342b and the rear side wall of the barrel body 310 in the thickness direction of the sewage bucket 300.

[0083] The other structures of the fourth embodiment are the same as those of the first embodiment and will not be described in detail here.

[0084] Embodiment 5

[0085] Combination Fig.15 In this embodiment, three surge protection plates 340 are arranged at intervals along the height direction of the sewage bucket 300 and are respectively a first surge protection plate 341, a second surge protection plate 342, and a third surge protection plate 343. The three surge protection plates are all flat and are arranged perpendicular to the height direction of the sewage bucket 300.

[0086] In this embodiment, the three surge-proof plates 340 are all arranged lower than the partition 350 in the height direction of the sewage barrel 300, wherein the second surge-proof plate 342 protrudes higher than the rear side wall of the barrel body 310 than the other two surge-proof plates, that is, the surge-proof plates 340 are arranged in a low-high-low manner, which can better prevent the shaking dirty liquid in the first chamber 361 from surging toward the connecting port 353.

[0087] In this embodiment, the first detection portion 371a of the first liquid level detection component 370a is arranged lower than the first anti-surge plate 341 in the height direction of the sewage bucket 300, and the second detection portion 371b of the second liquid level detection component 370b is located between the first anti-surge plate 341 and the second anti-surge plate 342 in the height direction of the sewage bucket 300. The detection portions of the two sets of liquid level detection components are arranged lower than the highest point of the second anti-surge plate 342 in the thickness direction of the sewage bucket 300.

[0088] The other structures of the fifth embodiment are the same as those of the first embodiment and will not be described in detail here.

[0089] Embodiment 6

[0090] Combination Fig.16 In this embodiment, four surge protection plates 340 are arranged at intervals along the height direction of the sewage bucket 300 and are respectively a first surge protection plate 341, a second surge protection plate 342, a third surge protection plate 343, and a fourth surge protection plate 344. The four surge protection plates are all flat and are arranged perpendicular to the height direction of the sewage bucket 300.

[0091] In this embodiment, the fourth surge-proof plate 344 can be arranged higher than the connecting port 353, and the other three surge-proof plates 340 are arranged lower than the partition 350 in the height direction of the sewage bucket 300. Among them, the height of the second surge-proof plate 342 protruding relative to the rear side wall of the barrel body 310 is greater than that of the other three surge-proof plates, that is, the surge-proof plates are arranged in a staggered manner, which can better prevent the swaying sewage in the first chamber 361 from surging toward the connecting port 353.

[0092] In this embodiment, the first detection portion 371a of the first liquid level detection component 370a is arranged lower than the first anti-surge plate 341 in the height direction of the sewage bucket 300, and the second detection portion 371b of the second liquid level detection component 370b is located between the first anti-surge plate 341 and the second anti-surge plate 342 in the height direction of the sewage bucket 300. The detection portions of the two sets of liquid level detection components are arranged lower than the highest point of the second anti-surge plate 342 in the thickness direction of the sewage bucket 300.

[0093] The other structures of the sixth embodiment are the same as those of the first embodiment and will not be described in detail here.

[0094] In addition to the above preferred embodiments, the present invention has other implementation modes. Those skilled in the art can make various changes and modifications based on the present invention. As long as they do not deviate from the spirit of the present invention, they should all fall within the scope defined in the claims of the present invention.

Claims

1. A surface cleaning device with a sewage collection function, comprising a pivotally connected body and a floor brush, the floor brush is provided with a sewage suction port, the body is provided with a sewage bucket, the sewage bucket comprises a barrel body and a barrel cover, the barrel body is provided with a sewage inlet pipe connected to the sewage suction port, the barrel cover is provided with an exhaust channel, characterized in that: The sewage bucket is arranged on the front side or the rear side of the fuselage and has an inclined state and a lying state following the fuselage. A partition is provided in the sewage bucket, and the partition divides the inner cavity of the sewage bucket into a first chamber and a second chamber which are interconnected. The upper port of the sewage inlet pipe extends into the first chamber, and the inlet of the exhaust channel is located on the cavity wall of the second chamber. The barrel cover is provided with two groups of liquid level detection parts extending downward into the barrel body, and both groups of liquid level detection parts are provided with detection parts located in the first chamber.

2. A surface cleaning device with sewage collection function according to claim 1, characterized in that: The detection parts on the two groups of liquid level detection parts are lower than the connecting point between the first chamber and the second chamber in the height direction of the sewage bucket; and / or, the detection parts on the two groups of liquid level detection parts are lower than the connecting point between the first chamber and the second chamber in the thickness direction of the sewage bucket.

3. A surface cleaning device with sewage collection function according to claim 1, characterized in that: The two groups of liquid level detection components are respectively a first liquid level detection component and a second liquid level detection component. The height of the first liquid level detection component extending into the first chamber is greater than that of the second liquid level detection component. The first liquid level detection component and the second liquid level detection component are distributed front and back when the sewage bucket is in a tilted state. The first liquid level detection component and the second liquid level detection component are distributed up and down when the sewage bucket is in a lying state.

4. A surface cleaning device with sewage collection function according to claim 3, characterized in that: The barrel body is provided with a surge protection plate for preventing the liquid in the first chamber from surging into the second chamber. The surge protection plates are provided at least two at intervals along the height direction of the sewage bucket. The detection portion on the first liquid level detection member is arranged lower than the surge protection plate in the height direction of the sewage bucket, and the detection portion on the second liquid level detection member is arranged higher than at least one of the surge protection plates in the height direction of the sewage bucket.

5. A surface cleaning device with sewage collection function according to claim 3, characterized in that: The first chamber is provided with a dirt shielding cover which shields the upper port of the dirt inlet pipe in an airtight manner. Two of the first liquid level detecting members and two of the second liquid level detecting members are provided and are respectively located on the left and right sides of the dirt shielding cover.

6. A surface cleaning device with sewage collection function according to claim 5, characterized in that: The detection parts on the two first liquid level detection members are arranged to face away from the dirt shielding cover; and / or the detection parts on the two second liquid level detection members are arranged to face away from the dirt shielding cover.

7. A surface cleaning device with sewage collection function according to claim 1, characterized in that: A dirt shielding cover is provided in the first chamber to cover the upper end of the dirt inlet pipe. The top of the dirt shielding cover is higher than at least a portion of the second chamber in the height direction of the sewage bucket. The inlet of the exhaust passage is provided above the dirt shielding cover. The connection between the first chamber and the second chamber is provided on the outside of the dirt shielding cover in the left and right directions.

8. A surface cleaning device with sewage collection function according to claim 1, characterized in that: The second chamber is nested in the upper portion of the front side of the first chamber, and the second chamber is formed by enclosing a partition, a partial side wall of the barrel body, and a partial bottom wall of the barrel cover.

9. A surface cleaning device with sewage collection function according to claim 1, characterized in that: The sewage bucket is flat in shape with a left-right width greater than a front-to-back thickness; and / or the volume of the first chamber is V1, the volume of the second chamber is V2, and 1 / 50≤V2 / V1≤1 / 12.

10. A surface cleaning device with sewage collection function according to any one of claims 1 to 9, characterized in that: The partition is provided with a communication port for connecting the first chamber and the second chamber; and / or, a communication gap for connecting the first chamber and the second chamber is provided between the partition and the inner wall of the barrel.

Images