Surface cleaning device

Abstract

The surface cleaning device comprises a machine body and a cleaning head connected with the machine body in a pivoted mode, a dirt collecting barrel and a suction source assembly are installed on the machine body, the dirt collecting barrel is provided with a dirt collecting cavity, and the dirt collecting cavity is communicated with a dirt suction opening in the suction source assembly and a dirt suction opening in the cleaning head. An inlet, an outlet and an exhaust cavity communicated with the inlet and the outlet are further formed in the dirt collecting barrel, and the air outlet of the suction source assembly is communicated with the inlet of the dirt collecting barrel, so that airflow exhausted by the suction source assembly enters the exhaust cavity from the air outlet and then is exhausted from the outlet of the exhaust cavity. According to the technical scheme, the situation that electrical elements in the surface cleaning device are damaged by discharged water vapor can be reduced, and noise is reduced.

Description

Technical Field

[0001] This application belongs to the field of cleaning equipment technology, and specifically provides a surface cleaning device. Background Technology

[0002] Currently, surface cleaning devices capable of simultaneously suctioning liquid and solid dirt from surfaces typically include a suction port, a collection tank, and a suction source assembly. The suction source assembly draws dirt from the surface into the collection tank using airflow. Because the suction source assembly needs to exhaust air to continuously generate suction, the surface cleaning device also includes an exhaust vent to remove air.

[0003] In existing technologies, some surface cleaning devices, for the sake of simplified structure and aesthetics, place the exhaust vent directly behind the suction source component. This not only results in high noise levels but also directs airflow directly at the user, carrying bacteria and moisture, posing hygiene problems and leading to a poor user experience. Other surface cleaning devices direct airflow into the device's interior before exhausting it from elsewhere. While this avoids directing airflow at the user, it causes bacteria and moisture carried by the airflow to accumulate inside the device, potentially affecting the safety of internal electrical components and making the interior difficult to clean. Summary of the Invention

[0004] To address the aforementioned problems in the prior art, specifically the issue of inadequate ventilation in existing surface cleaning devices, this application provides a surface cleaning device comprising a body and a cleaning head pivotally connected thereto. The body is equipped with a sludge collection bin and a suction source assembly. The sludge collection bin has a sludge collection chamber, which is connected to both the suction source assembly and the suction port on the cleaning head. The sludge collection bin also has an inlet, an outlet, and an exhaust chamber connecting the inlet and outlet. The outlet of the suction source assembly is connected to the inlet of the sludge collection bin, allowing the airflow from the suction source assembly to enter the exhaust chamber from the outlet and then exit from the outlet of the exhaust chamber.

[0005] Preferably, a sealed exhaust channel is formed in the exhaust chamber between the inlet and outlet of the sludge collection tank.

[0006] Preferably, the exhaust duct is arranged to at least partially surround the sludge collection chamber.

[0007] Preferably, the exhaust duct is one or more.

[0008] Preferably, the machine body is provided with an installation cavity for installing the sludge collection bucket, the exhaust cavity is provided with multiple openings, and the cavity wall of the installation cavity cooperates with the opening of the sludge collection bucket to form an exhaust channel.

[0009] Preferably, the cavity wall of the mounting cavity is provided with grooves corresponding to two adjacent openings.

[0010] Preferably, the air outlet of the sewage collection chamber and the inlet of the exhaust chamber are both located on the upper side of the sewage tank.

[0011] Preferably, the air inlet of the suction source assembly is circular, the air outlet is arranged in a ring around the air inlet, and the top of the sludge collection bucket is provided with a ring portion that connects with the air outlet so that the airflow enters the ring portion and then enters the exhaust channel.

[0012] Preferably, the sludge collection tank includes an inner shell and an outer shell, the sludge collection cavity is formed inside the inner shell, and the outer shell surrounds the outer surface of the inner shell and together with the outer surface of the inner shell forms the exhaust cavity.

[0013] Preferably, a filter element is provided at the connection between the sludge collection tank and the suction source assembly. The filter element includes a first filter area and a second filter area. The first filter area is located on the air inlet path of the suction source assembly, and the second filter area is located on the air outlet path of the suction source assembly.

[0014] Those skilled in the art will understand that the surface cleaning device described above in this application has at least the following beneficial effects:

[0015] By incorporating a collection chamber and an exhaust chamber into the sludge collection tank, the suction source component uses the suction generated by the air inlet to draw dirt from the surface to be cleaned into the collection chamber. The airflow from the suction source component enters the exhaust chamber from the air outlet and then exits from the exhaust chamber. This not only prevents the exhaust airflow from reaching the user but also prevents it from entering the surface cleaning device itself, thus avoiding moisture accumulation that could affect the safety of electrical components and bacterial buildup that could cause the device to become contaminated. Furthermore, the exhaust chamber is designed to... The sludge collection tank allows for simultaneous flushing of the exhaust chamber when the tank is removed for cleaning, facilitating cleaning and reducing bacterial accumulation. Furthermore, the exhaust chamber extends the exhaust path of the suction source component, continuously reducing airflow noise and effectively minimizing noise during airflow discharge. Since both the incoming and outgoing airflow from the suction source component are concentrated within the tank, the amplitudes generated by these airflows are at least partially opposite in direction, canceling each other out and further reducing noise. Additionally, if the sludge collection tank is not properly installed, the airflow from the suction source component cannot fully enter the exhaust chamber, leading to increased exhaust noise and alerting the user to ensure proper installation. Moreover, the volume of the exhaust chamber is smaller than that of the sludge collection chamber. Because the airflow passes sequentially through the sludge collection chamber and the exhaust chamber in the airflow direction, the airflow pressure...

[0016] The force gradually changes and reduces airflow vibration, thus reducing airflow turbulence and generating more noise. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] The following description refers to the accompanying drawings, in which:

[0019] Figure 1 This is an isometric view of the surface cleaning device in the first embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the structure of a portion of the surface cleaning device in the first embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the structure at the junction of the suction source component and the sludge collection tank in the first embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the exhaust duct structure in the first embodiment of this application;

[0023] Figure 5 This is a schematic diagram of the first embodiment of the adapter in the fourth embodiment of this application;

[0024] Figure 6 This is a schematic diagram of the second embodiment of the adapter in the fourth embodiment of this application;

[0025] Figure 7 This is a schematic diagram of the third embodiment of the adapter in the fourth embodiment of this application;

[0026] Figure 8 This is a schematic diagram of the fit between the exhaust cavity and the mounting cavity in the fifth embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 11. Cleaning head; 111. Suction port; 12. Body; 121. Adapter; 1211. First channel; 1212. Second channel; 13. Handle; 14. Sludge collection bucket; 141. Sludge collection chamber; 142. Exhaust chamber; 1421. Exhaust channel; 1422. Opening; 143. Inner cover; 144. Outer cover; 145. Observation window; 15. Suction source assembly; 151. Air inlet; 152. Air outlet; 16. Cleaning roller; 17. Suction channel; 18. Filter element; 181. First filtration zone; 182. Second filtration zone. Detailed Implementation

[0029] Those skilled in the art should understand that the embodiments described below are merely a part of the embodiments of this application, and not all of the embodiments of this application. These partial embodiments are intended to explain the technical principles of this application and are not intended to limit the scope of protection of this application. Based on the embodiments provided in this application, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of this application.

[0030] It should be noted that in the description of this application, terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can also refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] The surface cleaning device of this application includes a suction port, a sludge collection tank, and a suction source assembly. The suction source assembly is connected to the sludge collection tank and the suction port respectively to carry dirt to the sludge collection tank by suction airflow. The sludge collection tank has a sludge collection chamber and an exhaust chamber. The suction source assembly has an air inlet and an air outlet. The air inlet is connected to the sludge collection chamber, and the air outlet is connected to the exhaust chamber so that the suction airflow is discharged through the exhaust chamber.

[0033] This surface cleaning device, through the design of a dirt collection chamber and an exhaust chamber in the dirt collection bucket, allows the suction source component to use the suction generated by the air inlet to draw dirt from the surface to be cleaned into the dirt collection chamber. The airflow from the suction source component enters the exhaust chamber from the air outlet and then exits from the exhaust chamber. This not only prevents the exhaust airflow from reaching the user but also from entering the interior of the surface cleaning device, thus avoiding moisture accumulation that could affect the safety of electrical components and preventing bacteria from accumulating inside the device and causing it to become contaminated. Simultaneously, it... The exhaust chamber is located inside the sludge collection tank. This allows for simultaneous rinsing of the exhaust chamber when the tank is removed for cleaning, facilitating cleaning and reducing bacterial accumulation. Furthermore, the exhaust chamber extends the exhaust path of the suction source component, continuously reducing airflow noise and effectively minimizing noise during airflow. Since both the inlet and outlet airflows from the suction source component are concentrated within the sludge collection tank, the amplitudes generated by these airflows are at least partially opposite in direction. These opposing amplitudes cancel each other out, further reducing noise from the airflow within the tank. Additionally, if the sludge collection tank is not installed correctly, the airflow from the suction source component will not fully enter the exhaust chamber, resulting in increased exhaust noise and serving as a reminder to the user to confirm proper installation.

[0034] The specific structure of the surface cleaning device of this application will be described below with reference to the accompanying drawings.

[0035] First embodiment of this application:

[0036] like Figures 1 to 4 As shown, the surface cleaning device of this embodiment includes a cleaning head 11, a body 12, a handle 13, a sludge collection bin 14, a suction source assembly 15, and a cleaning roller 16. The cleaning head 11 is used to contact the surface to be cleaned. The body 12 is pivotally connected to the cleaning head 11 and provides an installation position for the sludge collection bin 14 and the suction source assembly 15. The handle 13 is connected to the body 12 and is used by the user to hold and operate the surface cleaning device. The cleaning head 11 is provided with a suction port 111. The suction source assembly 15 is used to provide suction to suck dirt from the surface to be cleaned into the sludge collection bin 14 through the suction port 111. The cleaning roller 16 is pivotally mounted on the cleaning head 11 and located in front of the suction port 111, and is used to wipe the surface to be cleaned.

[0037] like Figure 2 and Figure 3As shown, the sludge collection tank 14 has a sludge collection chamber 141 and an exhaust chamber 142, and the suction source assembly 15 has an air inlet 151 and an air outlet 152. The air inlet 151 communicates with the sludge collection chamber 141. The volume of the exhaust chamber 142 is smaller than the volume of the sludge collection chamber 141. The air outlet 152 communicates with the exhaust chamber 142. Additionally, the sludge collection chamber 141 is connected to the suction port 111 of the cleaning head 11 via a suction channel 17. (Refer to...) Figure 2 and Figure 3 As indicated by the airflow arrows, the activated suction source assembly 15 continuously draws air from the dirt collection chamber 141 and the suction channel 17 through the air inlet 151, creating a negative pressure within the dirt collection chamber 141 and the suction channel 17. This negative pressure allows the surface cleaning device to draw dirt from the surface to be cleaned into the dirt collection chamber 141 through the suction port 111 and the suction channel 17. Furthermore, the suction source assembly 15 discharges air into the exhaust chamber 142 through the air outlet 152, and then exhausts it to the outside.

[0038] Specifically, the exhaust chamber has an inlet, and the sludge collection chamber has an outlet, with the inlet and outlet located on the same side of the sludge collection tank. This design minimizes the complexity of the exhaust path, avoiding increased noise caused by a more complex exhaust path.

[0039] Those skilled in the art will understand that by providing an exhaust chamber 142 in the sludge collection tank 14, on the one hand, the exhaust airflow is prevented from being discharged towards the user and also from being discharged into the body 12, thereby avoiding the accumulation of moisture inside the body 12 that could affect the safe use of electrical components inside the body 12, and also preventing bacteria from accumulating inside the body 12 and causing it to become dirty. At the same time, placing the exhaust chamber 142 inside the sludge collection tank 14 allows the exhaust chamber 142 to be flushed simultaneously when the sludge collection tank 14 is removed for cleaning, facilitating cleaning and reducing bacterial accumulation. On the other hand, the exhaust path of the suction source assembly 15 is extended, causing wind noise to be continuously dissipated within the exhaust chamber 142, thereby effectively reducing the noise when the airflow is discharged. Moreover, since both the incoming and outgoing airflows of the suction source assembly 15 are concentrated in the sludge collection tank 14, the amplitudes generated by the incoming and outgoing airflows on the sludge collection tank 14 are at least partially opposite in direction, causing these opposite amplitudes to cancel each other out, thereby reducing the noise of the airflow flowing in the sludge collection tank 14. Additionally, if the sludge collection tank 14 is not installed correctly, the airflow discharged from the suction source assembly 15 will not be able to fully enter the exhaust chamber 142, resulting in increased exhaust noise and serving as a reminder to the user, confirming the installation of the sludge collection tank 14. Furthermore, by setting the volume of the exhaust chamber to be smaller than that of the sludge collection chamber, the airflow passes sequentially through the sludge collection chamber and the exhaust chamber in the airflow direction, resulting in gradual changes in airflow pressure and reduced airflow vibration, thus minimizing the noise generated by airflow turbulence.

[0040] like Figures 2 to 4 As shown, specifically, the sludge collection tank 14 includes an inner shell 143 and an outer shell 144. A sludge collection chamber 141 is formed inside the inner shell 143, and the outer shell 144 is disposed around the inner shell 143, thereby forming an exhaust chamber 142 between the outer surface of the inner shell 143 and the inner surface of the outer shell 144. Further, the exhaust chamber 142 includes two exhaust channels 1421. Airflow entering the exhaust chamber 142 enters the exhaust channel 1421 from its respective inlet, flows along the exhaust channel 1421, and is discharged to the outside from its respective outlet. The exhaust duct 1421 has a portion formed in the outer casing 144 and another portion formed in the inner casing 143 (e.g., half formed in the outer casing 144 and half formed in the inner casing 143). When the inner casing 143 and the outer casing 144 are aligned, the two portions of the exhaust duct 1421 are sealed together to form a complete exhaust duct 1421.

[0041] Those skilled in the art will understand that by dividing the sludge collection tank 14 into an inner cover 143 and an outer cover 144 surrounding the inner cover 143, and using the mating outer cover 144 and the inner cover 143 to jointly seal and form an exhaust chamber 142, compared to using one-piece molding to form the sludge collection chamber 141 and the exhaust chamber 142, the production and manufacturing of the sludge collection tank 14 is more convenient. At the same time, the inner cover 143 and the outer cover 144 can be separated to thoroughly clean the inside of the exhaust chamber 142.

[0042] It should be noted that, in this embodiment, the air inlet 151 and the air outlet 152 can be configured as circular, and the air outlet 152 as an annular shape surrounding the air inlet 151. In this case, the annular portion at the top of the exhaust chamber 142 connects with the air outlet 152, and the airflow enters the annular portion of the exhaust chamber 142 before entering the exhaust channel 1421. Alternatively, the air outlet 152 can be simply arranged adjacent to the air inlet 151, and both can be configured in any shape, as long as the air inlet 151 is connected to the dirt collection chamber 141, and the air outlet 152 is connected to the exhaust chamber 142.

[0043] It should also be noted that, if cost and processing technology permit, the sludge collection tank in this embodiment can of course also be manufactured using a one-piece molding method. Additionally, the outlets of the two exhaust ducts 1421 can be combined into one.

[0044] Combination Figure 2 and Figure 4As shown, taking one of the exhaust channels 1421 as an example, the exhaust channel 1421 is arranged back and forth between the left and right sides of the sludge collection chamber 141. In other words, the exhaust channel 1421 is a tortuous channel with a bend, thus partially surrounding the sludge collection chamber 141. By setting the exhaust channel 1421 into a tortuous structure, it not only helps to extend the exhaust path of the suction source component 15, thereby improving the effect of reducing wind noise, but also increases the coverage area of ​​the exhaust airflow of the suction source component 15 on the sludge collection tank 14, so that the opposite amplitudes generated by the inlet airflow and the outlet airflow on the sludge collection tank 14 can meet more quickly, thereby further reducing the noise of the airflow flowing in the sludge collection tank 14.

[0045] Continue to refer to Figure 2 and Figure 4 As shown, preferably, the two exhaust channels 1421 are symmetrically arranged on the surface of the sludge collection chamber 141 and have intersecting and communicating points, as shown in the figure. Figure 4 As indicated by the airflow arrow, the airflow discharged from the air outlet 152 of the suction source assembly 15 can enter the corresponding exhaust channel 1421 from the respective inlets of the two exhaust channels 1421. When the airflows in the two exhaust channels 1421 meet at the intersection, because the two airflows flow in different directions, the two airflows will cancel each other out a portion of the airflow, thereby reducing the airflow in the exhaust channel 1421 and helping to further reduce wind noise.

[0046] It should be noted that the two exhaust ducts 1421 can also be arranged asymmetrically, as long as the two airflows meet in different directions to reduce the air volume. However, a symmetrical distribution makes the structure of the sludge collection tank 14 more reasonable, facilitates its production and manufacturing, and also makes it more aesthetically pleasing.

[0047] It should also be noted that the number of intersections between the two exhaust ducts 1421 can be one, two, or four, or more. Additionally, more than two exhaust ducts 1421 can also be provided.

[0048] Reference Figures 1 to 3 As shown, both the suction source assembly 15 and the sludge collection tank 14 are detachably mounted on the body 12. When both the sludge collection tank 14 and the suction source assembly 15 are installed in place, the air inlet 151 of the suction source assembly 15 is connected to the sludge collection chamber 141 of the sludge collection tank 14, and the air outlet 152 of the suction source assembly 15 is connected to the exhaust chamber 142 of the sludge collection tank 14.

[0049] Those skilled in the art will understand that the suction source assembly 15 is detachably connected to the body 12, so that the suction source assembly 15 of this embodiment can be used as a part of the surface cleaning device, and can also be detached from the surface cleaning device to connect other parts (such as dustbin and flat nozzle, flexible suction tube, etc.) for users to use by holding the suction source assembly 15 directly, thereby being able to cope with a variety of cleaning environments (table, furniture gaps, etc.) and improve the user experience.

[0050] like Figure 3 As shown, a filter element 18 is provided between the suction source assembly 15 and the sludge collection tank 14. The filter element 18 is a HEPA (High-Efficiency Particulate Air) filter. Specifically, the filter element 18 has a first filtration zone 181 and a second filtration zone 182. The first filtration zone 181 is configured corresponding to the air inlet 151 of the suction source assembly 15, and the second filtration zone 182 is configured corresponding to the air outlet 152 of the suction source assembly 15. When the suction source assembly 15 is working, the first filtration zone 181 can perform a first filtration on the airflow entering the suction source assembly 15, and the second filtration zone 182 can perform a second filtration on the airflow exiting the suction source assembly 15, effectively reducing the moisture and bacteria carried by the airflow, thereby reducing the accumulation of moisture and bacteria in the exhaust chamber 142. Preferably, the air inlet 151 and the air outlet 152 are in the same plane, which facilitates cooperation with the filter element 18.

[0051] It should be noted that the structure of the filter element 18 can be changed accordingly depending on the different structural forms of the air inlet 151 and the air outlet 152. For example, in the form where the annular air outlet 152 surrounds the air inlet 151, the filter element 18 can be an annular second filter area 182 surrounding the first filter area 181; when the air inlet 151 and the air outlet 152 are simply adjacent structures, the first filter area 181 and the second filter area 182 are set as ordinary adjacent structures.

[0052] Reference Figure 2 and Figure 4 As shown, the inner cover 143 has a portion that protrudes towards the outer cover 144, avoiding the exhaust channel 1421, until it fits against the inner surface of the outer cover 144. Both the inner cover 143 and the outer cover 144 are made of transparent material (such as transparent plastic), thereby forming an observation window 145. When the user uses the surface cleaning device to perform cleaning work, the user can observe the sewage level in the sewage collection chamber 141 through the observation window 145, thereby improving the user experience.

[0053] It should be noted that the outer cover 144 can also be partially hollowed out to avoid the exhaust channel 1421, so that the outer surface of the inner cover 143 directly forms the outer surface of the sludge collection tank 14, which also allows the user to observe the sewage level in the sludge collection chamber 141.

[0054] Combination Figures 1 to 4 As shown, during use, the user can operate the surface cleaning device by holding the handle 13 and control its movement. After the suction source assembly 15 and the cleaning roller 16 are started, the rotating cleaning roller 16 rubs the surface to be cleaned. The suction source assembly 15 draws in air through the air inlet 151, thereby generating negative pressure in the dirt collection chamber 141 and the suction channel 17. Then, the dirt on the surface to be cleaned is drawn into the dirt collection chamber 141 through the dirt suction port 111 and the suction channel 17. The air drawn in by the suction source assembly 15 first passes through the first filtration zone 181 of the filter element 18, filtering out some of the bacteria and water vapor carried by the airflow. The suction source assembly 15 then discharges the air through the air outlet 152. The discharged air first passes through the second filtration zone 182 of the filter element 18, filtering out some of the water vapor and bacteria carried by the airflow again. Then the airflow enters the exhaust chamber 142. The airflow entering the exhaust chamber 142 enters the two exhaust channels 1421 from the inlets of the two exhaust channels 1421 respectively, and then flows along the two exhaust channels 1421 respectively. When the two airflows meet at the intersection of the two exhaust channels 1421, they will partially cancel each other out, and finally be discharged to the outside from the outlet of the exhaust channel 1421.

[0055] Those skilled in the art will understand that by providing an exhaust chamber 142 including an exhaust channel 1421 in the sludge collection tank 14, on the one hand, the airflow discharged from the suction source assembly 15 is not only prevented from being discharged towards the user, but also from being discharged into the body 12, thereby preventing moisture from accumulating inside the body 12 and affecting the safe use of electrical components inside the body 12, and also preventing bacteria from accumulating inside the body 12 and causing it to become dirty. At the same time, the exhaust chamber 142 can be rinsed simultaneously when the sludge collection tank 14 is removed for cleaning, which facilitates cleaning and reduces bacterial accumulation. On the other hand, the exhaust path of the suction source assembly 15 is extended, so that wind noise is continuously dissipated in the exhaust chamber 142, thereby effectively reducing the noise when the airflow is discharged. Moreover, since the inlet and outlet airflows of the suction source assembly 15 are concentrated in the sludge collection tank 14, the amplitudes generated by the inlet and outlet airflows on the sludge collection tank 14 are at least partially opposite in direction, so that these opposite amplitudes cancel each other out, thereby reducing the noise of the airflow flowing in the sludge collection tank 14. In addition, when the sludge collection tank 14 is not installed properly, the airflow discharged from the suction source component 15 will not be able to enter the exhaust chamber 142 completely, which will cause the exhaust sound to become louder, thereby reminding the user and serving to confirm the installation of the sludge collection tank 14.

[0056] Furthermore, by making the exhaust duct 1421 more tortuous, the exhaust path of the suction source assembly 15 is extended, thereby improving the effect of reducing wind noise and increasing the coverage area of ​​the exhaust airflow from the suction source assembly 15 on the sludge collection tank 14. This allows the opposing amplitudes of the incoming and outgoing airflows generated on the sludge collection tank 14 to meet more quickly, further reducing the noise of the airflow flowing within the sludge collection tank 14. Moreover, by providing an intersection and connection point between the two exhaust ducts 1421, when the airflows within the two exhaust ducts 1421 meet at the intersection and connection point, because the two airflows flow in different directions, they will cancel each other out, thereby reducing the airflow within the exhaust duct 1421 and further helping to reduce wind noise.

[0057] The second embodiment of this application:

[0058] Although not shown in the figure, unlike the first embodiment, the exhaust channel in this embodiment is arranged back and forth between the upper and lower sides of the dirt collection chamber, thereby partially surrounding the dirt collection chamber.

[0059] Alternatively, although not shown in the figure, unlike the first embodiment, the exhaust duct in this embodiment can also be set in a spiral shape to completely surround the sludge collection chamber.

[0060] The third embodiment of this application:

[0061] Although not shown in the figure, unlike the first embodiment, the exhaust cavity in this embodiment does not include an exhaust channel, but all the space between the inner and outer shells can be used for airflow.

[0062] It should be noted that, in this embodiment, the exhaust chamber can completely surround the sludge collection chamber, or it can surround a portion of the sludge collection chamber.

[0063] The fourth embodiment of this application:

[0064] like Figures 5 to 7 As shown, unlike the first, second and third embodiments, the body 12 of this embodiment has a connector 121 located between the installation position of the suction source assembly 15 and the installation position of the sludge collection tank 14.

[0065] Specifically, such as Figure 5As shown, in the first embodiment of this example, the adapter 121 has a first channel 1211 located between the air inlet 151 and the sludge collection chamber 141 of the suction source assembly 15, and a second channel 1212 located between the air outlet 152 and the exhaust chamber 142 of the suction source assembly 15. When the sludge collection tank 14 and the suction source assembly 15 are both installed in place, the air inlet 151 of the suction source assembly 15 is connected to the sludge collection chamber 141 through the first channel 1211, and the air outlet 152 of the suction source assembly 15 is connected to the exhaust chamber 142 through the second channel 1212.

[0066] like Figure 6 As shown, in the second embodiment of this example, the adapter 121 is only provided between the air inlet 151 and the dirt collection chamber 141, so that the air inlet 151 and the dirt collection chamber 141 are connected through the first channel 1211, while the air outlet 152 is directly connected to the exhaust chamber 142 (for example, the air outlet 152 extends a section into the exhaust chamber 142, or the exhaust chamber 142 extends a section into the air outlet 152).

[0067] like Figure 7 As shown, in the third embodiment of this example, the adapter 121 is only provided between the air outlet 152 and the exhaust chamber 142, so that the air outlet 152 and the exhaust chamber 142 are connected through the second channel 1212, while the air inlet 151 and the dirt collection chamber 141 are directly connected (for example, the air inlet 151 extends a section into the dirt collection chamber 141, or the dirt collection chamber 141 extends a section into the air inlet 151).

[0068] Although not shown in the figure, as another embodiment of this invention, the adapter is configured as a ring structure around the suction source assembly to support the suction source assembly, but the suction source assembly and the sludge collection tank can be directly connected from the middle of the ring-shaped adapter.

[0069] The fifth embodiment of this application:

[0070] like Figure 8 As shown, unlike the previous embodiment, the exhaust chamber 142 in this embodiment has multiple openings 1422, and the body 12 has an installation cavity for installing the sludge collection tank. The cavity wall of the installation cavity cooperates with the openings 1422 to form an exhaust path. Referring to the airflow arrows in the figure, specifically, the airflow from the suction source assembly into the exhaust chamber 142 through the air outlet can flow out from one of the openings 1422 during its flow within the exhaust chamber 142, and then, after being blocked by the cavity wall of the installation cavity, re-enter the exhaust chamber 142 through another opening 1422. Preferably, the cavity wall of the installation cavity has grooves corresponding to two adjacent openings 1422, making the airflow smoother.

[0071] Those skilled in the art will understand that by providing multiple openings 1422 in the exhaust chamber 142, the airflow exiting from one opening can be deflected by the mounting chamber wall and then flow back into the exhaust chamber 142 through another opening. This ensures that the exhaust chamber 142 can perform its exhaust function while making it easier to flush the inside of the exhaust chamber and also prevents liquid residue from remaining inside the exhaust chamber 142. Furthermore, the structure of providing an exhaust channel in the exhaust chamber also facilitates the mold design of the sludge collection tank, making the processing of the sludge collection tank easier.

[0072] It should be noted that the opening in this embodiment can also be located at the bottom of the sludge collection tank, that is, after the airflow flows downward from the exhaust chamber, it is blocked and returns upward to the exhaust chamber. In addition, the solution in this embodiment can be based on the exhaust duct provided in the first and second embodiments, with the opening located on the exhaust duct, or it can be based on the exhaust chamber provided in the third embodiment, which does not have an exhaust duct.

[0073] Additionally, it should be noted that the surface cleaning device of this application may also be without a cleaning roller, that is, it may only have a dirt suction function.

[0074] The technical solutions of this application have been described in conjunction with the preceding embodiments. However, it will be readily understood by those skilled in the art that the scope of protection of this application is not limited to these specific embodiments. Without departing from the technical principles of this application, those skilled in the art can disassemble and combine the technical solutions in the above embodiments, and can also make equivalent changes or substitutions to the relevant technical features. Any changes, equivalent substitutions, improvements, etc., made within the technical concept and / or technical principles of this application will fall within the scope of protection of this application.

Claims

1. A surface cleaning device, comprising a body and a cleaning head pivotally connected thereto, wherein a sludge collection bucket and a suction source assembly are mounted on the body, the sludge collection bucket having a sludge collection chamber communicating with both the suction source assembly and a suction port on the cleaning head, characterized in that, The sludge collection tank is also provided with an inlet, an outlet, and an exhaust chamber connecting the inlet and the outlet. The air outlet of the suction source component is connected to the inlet of the sludge collection tank so that the airflow discharged by the suction source component enters the exhaust chamber from the air outlet and then exits from the outlet of the exhaust chamber.

2. The surface cleaning device according to claim 1, characterized in that, A sealed exhaust channel is formed in the exhaust chamber between the inlet and outlet of the sludge collection tank.

3. The surface cleaning device according to claim 2, characterized in that, The exhaust duct is arranged to at least partially surround the sludge collection chamber.

4. The surface cleaning device according to claim 2, characterized in that, The exhaust duct may be one or more.

5. The surface cleaning device according to claim 1, characterized in that, The machine body is provided with an installation cavity for installing the sludge collection tank. The exhaust cavity has multiple openings, and the cavity wall of the installation cavity cooperates with the opening of the sludge collection tank to form an exhaust channel.

6. The surface cleaning device according to claim 5, characterized in that, The cavity wall of the mounting cavity is provided with grooves corresponding to two adjacent openings.

7. The surface cleaning apparatus according to any one of claims 1-6, characterized in that, The air outlet of the sewage collection chamber and the inlet of the exhaust chamber are both located on the upper side of the sewage tank.

8. The surface cleaning device according to claim 7, characterized in that, The air inlet of the suction source component is circular, and the air outlet is arranged in a ring around the air inlet. The top of the sludge collection tank is provided with a ring part that connects with the air outlet so that the airflow enters the ring part and then enters the exhaust channel.

9. The surface cleaning apparatus according to any one of claims 1-6, characterized in that, The sludge collection tank includes an inner shell and an outer shell. The sludge collection cavity is formed inside the inner shell, and the outer shell surrounds the outer surface of the inner shell and together with the outer surface of the inner shell, forms the exhaust cavity.

10. The surface cleaning apparatus according to any one of claims 1-6, characterized in that, A filter element is provided at the connection between the sludge collection tank and the suction source assembly. The filter element includes a first filter area and a second filter area. The first filter area is located on the air inlet path of the suction source assembly, and the second filter area is located on the air outlet path of the suction source assembly.

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