Cleaning equipment

Abstract

The utility model belongs to the technical field of cleaning equipment, and particularly provides cleaning equipment which comprises a main body structure, a sewage tank and a suction assembly are installed on the main body structure, the sewage tank is communicated with a sewage suction pipeline, the suction assembly is used for sucking ground sewage to the sewage tank through the sewage suction pipeline, and the cleaning equipment further comprises a water vapor cavity. A steam inlet and an air outlet which are communicated with the steam cavity are formed in the outer wall of the steam cavity, the steam inlet is communicated with the sewage tank, the air outlet is communicated with the suction assembly, and the steam inlet and the air outlet are located in the upper portion of the steam cavity.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning electrical appliances and specifically provides a cleaning device. Background Art

[0002] With the development of cleaning technology, the ability to move along the area to be cleaned and perform floor cleaning and suction of solid-liquid mixed dirt on the floor has gradually become an essential requirement for cleaning equipment. Generally, the cleaning equipment includes a main structure, which is provided with a sewage suction port, which is connected to the inlet of a sewage tank through a sewage suction pipeline, and the outlet of the sewage tank is connected to a suction component, which forms a negative pressure for suction in the sewage tank by vacuuming, so as to suck the solid-liquid mixture on the area to be cleaned into the sewage tank along the sewage suction port and the sewage suction pipeline.

[0003] In the above technical solution, although the suction component can be used to suck the solid-liquid mixture into the sewage tank, the suction component is likely to take out the sewage in the sewage tank when sucking the air in the sewage tank, resulting in water vapor being sucked into the suction component. When the sewage tank contains too much sewage, the sewage is likely to shake and splash to the outlet of the sewage tank and move along the pipeline to the suction component, thereby causing water intrusion and damage to the suction component. Utility Model Content

[0004] The utility model aims to provide a cleaning device which can prevent the water vapor brought out of the sewage tank along with the air from entering the suction component along the suction pipeline during the sewage extraction process, thereby avoiding the probability of the suction component being damaged by water.

[0005] In order to achieve the above-mentioned purpose, one or more embodiments of the utility model provide a cleaning device, including a main structure, on which a sewage tank and a suction assembly are installed, the inlet of the sewage tank is connected to a sewage suction pipeline, the air outlet of the sewage tank is connected to the suction assembly through the suction pipeline, the suction assembly is used to suck ground sewage into the sewage tank through the sewage suction pipeline, and also includes a water vapor chamber, which is arranged in series in the suction pipeline, the outer wall of the water vapor chamber has a steam inlet and an air outlet connected to the water vapor chamber, the steam inlet is connected to the sewage tank, the air outlet is connected to the suction assembly, and the steam inlet and the air outlet are located at the upper part of the water vapor chamber.

[0006] In at least one embodiment, the cleaning device further comprises a dust box assembly, the water vapor chamber is disposed in the dust box assembly and is isolated from the dust box cavity in the dust box assembly for communicating with the dust collection assembly and accommodating solid dirt.

[0007] In at least one embodiment, the lower portion of the water vapor chamber is V-shaped.

[0008] In at least one embodiment, the cleaning device further comprises a cyclone separator, and the cyclone separator is disposed in the dust box cavity.

[0009] In at least one embodiment, the water vapor chamber is detachably connected to the suction line.

[0010] In at least one embodiment, a filter assembly is further included. The filter assembly is detachably arranged outside the sewage tank, and the filter assembly is arranged in series in the suction pipeline.

[0011] In at least one embodiment, the filter assembly has a filter chamber and a filter element, the filter chamber is divided into a first chamber and a second chamber by the filter element, the filter element has a water inlet arranged in the first chamber and a water outlet arranged in the second chamber, the first chamber is connected to the sewage inlet of the sewage suction pipeline through the water inlet, the second chamber is connected to the outlet of the sewage suction pipeline through the water outlet, and the direction of the water inlet is not toward the filter element.

[0012] In at least one embodiment, it also includes a clean water tank below the sewage tank, the suction pipeline runs through the clean water tank, the lumen of the suction pipeline is not connected to the inner lumen of the clean water tank, and the filter element is detachably mounted on the outer wall of the sewage tank or the outer wall of the clean water tank.

[0013] In at least one embodiment, a sewage box is further included, wherein the sewage box has a sewage scraping opening facing the cleaning member, and the lower end of the sewage suction pipeline extends to the inner cavity of the sewage box.

[0014] In at least one embodiment, the cleaning equipment also includes a first pneumatic stop valve and a second pneumatic stop valve respectively connected to the sewage tank, the first pneumatic stop valve is used to control the on-off of the suction component and the inner cavity of the sewage tank; the second pneumatic stop valve is used to control the on-off of the inner cavity of the sewage tank and the external sewage discharge component; and also includes a three-way solenoid valve, the two gas outlets of the three-way solenoid valve are respectively connected to the first pneumatic stop valve and the second pneumatic stop valve, and the gas inlet of the three-way solenoid valve is connected to the suction component.

[0015] Beneficial effects of one or more of the above technical solutions:

[0016] (1) In this solution, the water vapor chamber is arranged in series in the suction pipeline, and the outer wall of the water vapor chamber has a steam inlet and an air outlet connected to the water vapor chamber, the steam inlet is connected to the sewage tank, and the air outlet is connected to the suction component. When the water vapor flow rate remains unchanged, when the water vapor mixture flows from the steam outlet with a smaller cross-sectional area in the sewage tank to the water vapor chamber with a larger spatial size, the water vapor mixture will slow down. After the sewage is slowed down, it will separate from the gas and the sewage will fall to the bottom of the sewage tank due to gravity, so as to reduce the probability of the water vapor mixture entering the suction component.

[0017] In this solution, the steam inlet and the air outlet are located at the upper part of the water vapor chamber; this arrangement is convenient for increasing the distance between the steam inlet and the air outlet of the water vapor chamber and the bottom of the water vapor chamber, thereby increasing the volume of sewage storage in the water vapor chamber. It can also avoid the problem of sewage in the water vapor chamber splashing to the air outlet due to shaking, and then moving along the air outlet to the suction component.

[0018] (2) In this solution, the water vapor chamber is arranged in the dust box assembly of the cleaning device and is isolated from the dust box cavity. This integrates the dust box cavity and the water vapor chamber in the same assembly, which can avoid adding an additional new structure to the main structure due to the water vapor chamber, simplify the structural setting of the cleaning device, and reduce the space occupied by the water vapor chamber for the floor brush. In addition, when the user regularly takes out the dust box assembly to clean the dust box, the sewage deposited in the water vapor chamber can be dumped out simultaneously, thereby simplifying the user's cleaning process of the dust box and the water vapor chamber and saving the user's operation time.

[0019] (3) In this solution, the lower part of the water vapor chamber is V-shaped, so that the lower part of the water vapor chamber has at least two inner wall surfaces extending downwardly at an angle, so that the sewage in the water vapor chamber can be drained to the lower part of the water vapor chamber for storage by using the inclined inner wall surfaces, thereby improving the smoothness of the sewage falling under the action of gravity. In addition, when the volume of the water vapor chamber remains unchanged, this makes the sewage more concentrated in the water vapor chamber and closer to the center of the water vapor chamber, which is convenient for subsequent cleaning.

[0020] (4) In this scheme, the cleaning device also includes a cyclone separator arranged in the dust box cavity; the cyclone separator can utilize the cyclone separation principle to make the solid particles sink to the bottom of the dust box cavity and make the gas be discharged from the upper end of the dust box cavity, thereby realizing the separation of the solid particles and the airflow in the dust box cavity, reducing the probability of fine particles entering the suction device connected to the dust box cavity, and increasing the service life of the cleaning device.

[0021] (5) In this solution, the steam inlet of the water vapor chamber is detachably connected to the sewage tank, and the air outlet is detachably connected to the suction assembly; this allows the structure of the water vapor chamber to be independently removed from the main structure to facilitate cleaning and disassembly of the water vapor chamber, thereby avoiding excessive sewage in the water vapor chamber that affects water vapor separation, or odor problems caused by long-term use.

[0022] (6) In this solution, a filter assembly is connected in series in the sewage suction pipeline, and the filter assembly is detachably arranged outside the sewage tank; after the filter assembly is blocked or produces odor, the filter assembly can be independently removed from the sewage tank and the sewage suction pipeline and cleaned or replaced in time, thereby solving the problem of blockage of the sewage suction pipeline caused by the filter assembly.

[0023] (7) In this solution, the filter chamber of the filter assembly is divided into a first chamber and a second chamber by the filter element. The filter element has a water inlet disposed in the first chamber and a water outlet disposed in the second chamber, and the water inlet is not facing the filter element. Firstly, this can achieve solid-liquid separation by using the filter element; in addition, the arrangement of the water inlet not facing the filter element can reduce the impact of sewage and solid dirt on the filter element, thereby avoiding the probability of the filter element being damaged by the impact and the filter element being blocked by fine particles of dirt.

[0024] (8) In this solution, there is also a clean water tank located below the sewage tank, the suction pipeline runs through the clean water tank, the lumen of the suction pipeline is not connected to the inner lumen of the clean water tank, and the filter is detachably mounted on the outer wall of the sewage tank or the outer wall of the clean water tank. This facilitates the integrated disassembly and assembly of the clean water tank and the sewage tank, and increases the convenience of disassembly and assembly of the clean water tank and the sewage tank.

[0025] In addition, in the present solution, the filter element can be detachably installed on the outer wall of the sewage tank or the clean water tank, which facilitates the independent installation of the filter element and the sewage tank, thereby reducing the difficulty of disassembling and assembling the filter element.

[0026] (9) In this solution, a sewage box is installed in the cleaning device, and the lower end of the sewage suction pipeline extends to the inner cavity of the sewage box. This makes it easier to use the sewage box to collect sewage on the cleaning parts, thereby reducing the difficulty of sucking out the sewage through the sewage suction pipeline.

[0027] (10) In the present solution, the suction assembly is connected to the sewage inlet of the three-way solenoid valve, and the first pneumatic stop valve and the second pneumatic stop valve are respectively connected to the two gas outlets of the three-way solenoid valve. This facilitates the on-off of two different pneumatic stop valves by one suction assembly through the on-off of the three-way solenoid valve, thereby improving the utilization rate of the suction assembly and facilitating the miniaturization design of the entire cleaning equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Some embodiments of the present application are described below with reference to the accompanying drawings, in which:

[0029] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the utility model;

[0030] Figure 2 It is a schematic diagram of the dust box cavity and the water vapor cavity exposed at the dust box assembly in Embodiment 1 of the present utility model;

[0031] Figure 3 It is an axonometric schematic diagram of the dust box assembly in Embodiment 1 of the present utility model;

[0032] Figure 4 This is an axonometric schematic diagram of the dust box assembly in Embodiment 1 of the present utility model from another viewing direction;

[0033] Figure 5 It is a schematic diagram of the combined structure of the sewage tank, the clean water tank and the sewage box in Embodiment 1 of the present utility model;

[0034] Figure 6 It is an axonometric schematic diagram of the clean water tank in Embodiment 1 of the present utility model;

[0035] Figure 7 It is a schematic diagram of a filter assembly disposed on the side wall of a clean water tank in Embodiment 1 of the present utility model;

[0036] Figure 8 yes Figure 7 A schematic diagram of the structure of part A in the middle;

[0037] Fig. 9 It is a cross-sectional view of the overall structure in Example 2 of the utility model;

[0038] Fig.10 It is a cross-sectional view of the overall structure in another viewing direction in Example 2 of the utility model;

[0039] Fig.11 yes Fig.10 A schematic diagram of the structure of part A in the middle;

[0040] Fig.12 It is a schematic diagram of arranging a cyclone separator in the dust box cavity in Embodiment 3 of the present utility model.

[0041] Reference numerals: 1, suction assembly; 2, suction pipeline; 3, dust box assembly; 31, top cover; 32, dust box cavity; 33, water vapor cavity; 331, steam inlet; 332, air outlet; 4, clean water tank; 41, first boss; 42, first interface; 43, second boss; 44, second interface; 45, sewage suction pipeline; 5, sewage tank; 6, sewage box; 7, filter assembly; 71, filter element; 72, water outlet; 73, water inlet; 74, connecting pipe;

[0042] 34. Cyclone separator. 341. Solid particle outlet; 342. Separation inlet; 343. Separation chamber;

[0043] 9. Three-way solenoid valve; 10. First air supply pipe; 11. First cavity; 12. Air pipe; 13. Separation box; 14. Second pneumatic stop valve; 15. Second cavity; 16. Second air supply pipe; 17. First pneumatic stop valve; 18. Third cavity.

[0044] 1410, seat body; 1411, upper cavity; 1412, middle cavity; 1413, lower cavity; 1414, water inlet hole; 1415, water outlet hole; 1420, elastic member; 1430, ejector rod; 1440, sealing ring; 1450, bearing; DETAILED DESCRIPTION

[0045] Those skilled in the art should understand that the embodiments described below are merely preferred embodiments of the present application, which are merely used to explain the technical principles of the present application and are not used to limit the protection scope of the present application.

[0046] It should be noted that in the description of this application, the terms "center", "upper", "lower", "top", "bottom", "vertical", "horizontal", "inner", "outer" and other terms indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on this application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0047] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] Example 1

[0049] like Figure 1-Figure 4 As shown, this embodiment provides a cleaning device, including a main structure, on which a sewage tank 5 and a suction assembly 1 are installed, the sewage tank 5 is connected to the sewage suction pipeline 45, and the suction assembly 1 is used to suck the ground sewage into the sewage tank 5 through the sewage suction pipeline 45. The cleaning device also includes a water vapor chamber 33, and the outer wall of the water vapor chamber 33 has a steam inlet 331 and an air outlet 332 connected to the water vapor chamber 33, the steam inlet 331 is connected to the sewage tank 5, and the air outlet 332 is connected to the suction assembly 1, and the steam inlet 331 and the air outlet 332 are located at the upper part of the water vapor chamber 33.

[0050] Specifically, the sewage tank 5 is nested in the clean water tank 4 , and the suction pipeline 2 needs to penetrate the clean water tank 4 to achieve the connection between the sewage tank 5 and the suction assembly 1 .

[0051] Furthermore, the suction pipeline 2 includes a first suction pipe 21 and a second suction pipe 22 which are separately arranged, and the water vapor chamber 33 is connected in series between the two.

[0052] In some other embodiments, the positions of the sewage tank and the clean water tank can be interchanged, that is, the clean water tank is nested in the sewage tank. In this case, the suction pipeline 2 does not pass through the clean water tank to achieve communication between the sewage tank and the suction assembly 1.

[0053] In this embodiment, the cleaning device may be a sweeping and mopping robot, which has a disc-shaped main structure, and the lower part of the main structure is provided with walking wheels and a cleaning component, and the walking wheels are driven by a power source to drive the sweeping and mopping robot to walk autonomously along the surface to be cleaned. The suction component 1, the suction component 1, the water vapor chamber 33, etc. are all in the inner cavity of the main structure. As an alternative, in other embodiments, the cleaning device may be other equipment such as a floor scrubber. When the cleaning device is a floor scrubber: the main structure includes a floor brush and a body, the lower part of the body is pivotally connected to the floor brush, and a sewage bucket and a water vapor chamber 33 are installed on the body or the floor brush. A cleaning component is provided on the floor brush, and a sewage suction port is provided on the floor brush that is opposite to the cleaning component, and the sewage suction port is connected to one end of the sewage suction pipeline 45.

[0054] In this embodiment, the steam inlet 331 and the air outlet 332 can be arranged on two side walls of the water vapor chamber 33 that are farther apart and opposite to each other, so as to increase the distance between the steam inlet 331 and the air outlet 332, thereby making the water vapor move longer in the water vapor chamber 33, so as to increase the effect of gas-water separation in the water vapor. Preferably, the steam inlet 331 and the air outlet 332 are arranged at the upper end of the side wall of the water vapor chamber 33.

[0055] Specifically, the suction component 1 is connected to the water vapor chamber 33 through the suction pipeline 2, and the water vapor chamber 33 is connected to the sewage tank 5 through the steam inlet pipeline. The suction component 1 here is a vacuum fan or an air pump.

[0056] In some other embodiments, the steam inlet 331 and the air outlet 332 can be arranged on two adjacent side walls of the water vapor cavity 33; or one of the steam inlet 331 and the air outlet 332 is arranged on the top wall of the water vapor cavity 33, and the other is arranged on the side wall of the water vapor cavity 33; or, both the steam inlet 331 and the air outlet 332 are arranged on the top wall of the water vapor cavity 33.

[0057] It can be known that under the negative pressure suction of the suction component 1, the water vapor mixture in the sewage tank 5 will first pass through the steam inlet 331 with a smaller flow channel cross-sectional area, and then flow into the water vapor chamber 33. The volume of the water vapor chamber 33 is large so as to decelerate the expansion of the water vapor mixture. The sewage in the water vapor mixture will fall due to gravity due to the deceleration and be stored in the bottom space of the water vapor chamber 33.

[0058] The water vapor chamber 33 here can be formed by an independently arranged water vapor box, which can be independently disassembled and assembled from the main structure. However, this arrangement requires an increase in the number of components inside the main structure, and the installation and fixation of the water vapor box need to be considered, which is likely to affect the installation space of other components in the main structure.

[0059] Those skilled in the art can understand that when the cleaning device is a sweeping and mopping robot, the cleaning device generally includes a dust box assembly 3, and the sweeping and mopping robot uses a fan to suck the garbage on the ground into the dust box assembly 3 for storage during the cleaning process. In order to facilitate the setting of the water vapor chamber 33, in this embodiment, the water vapor chamber 33 is arranged in the dust box assembly 3, and is isolated from the dust box chamber 32 in the dust box assembly 3 for connecting the dust suction assembly and accommodating solid dirt. That is, in this embodiment, the dust box assembly 3 has an integral shell, and the dust box chamber 32 and the water vapor chamber 33 inside it can be disassembled and assembled synchronously.

[0060] In this embodiment, the upper end of the dust box assembly 3 is open, and the opening includes two parts: an opening of the dust box cavity 32 and an opening of the water vapor cavity 33. A top cover 31 is detachably installed at the opening, and the top cover 31 is used to cover the openings of the dust box cavity and the water vapor cavity at the same time. When the top cover 31 is sealed at the opening position, the entire dust box cavity 32 and the water vapor cavity 33 are separated from the external environment. When the top cover 31 is removed from the opening, it is convenient to expose the dust box cavity 32 and the water vapor cavity 33 at the same time, so that the user can remove sewage and solid dirt simultaneously. The inner cavity of the dust box assembly 3 is provided with a partition, and the partition is used to achieve the separation of the dust box cavity 32 and the water vapor cavity 33. For more details, see Figure 2 , the partition is a vertical partition, and the vertical partition is integrally formed with the shell of the dust box assembly 3. In some other embodiments, the vertical partition and the shell of the dust box assembly 3 can be manufactured in a split manner, and the two are fixed by gluing or the like.

[0061] In some other embodiments, the upper opening of the dust box assembly is only used to expose the dust box cavity, and the top cover is only used to cover the dust box cavity. A drainage switch is provided on the bottom wall or side wall of the water vapor cavity to discharge the precipitated sewage from the bottom wall or side wall of the water vapor cavity.

[0062] See also Figure 2-Figure 3 In this embodiment, the lower part of the water vapor chamber 33 is V-shaped. Specifically, the water vapor chamber 33 is formed by the top cover 31, two inclined side walls with a V-shaped angle, a partition, and the inner wall of the outer shell of the dust box assembly 3. When the lower part of the water vapor chamber 33 is V-shaped, it is convenient to use the two inclined side walls with a V-shaped angle to drain the sewage in the upper part of the water vapor chamber 33 to the bottom of the water vapor chamber 33 for unified storage. In addition, the V-shaped structure makes the space in the cavity as large as possible. With the interface position, the space in the cavity can be used as much as possible to store more sewage, which is conducive to reducing the number of cleaning times.

[0063] Furthermore, the outer contour of the entire dust box assembly 3 is roughly V-shaped. This arrangement allows the side wall thickness of the outer shell of the dust box assembly 3 at the water vapor cavity 33 to maintain a uniform thickness, which is convenient for reducing the material thickness required for the outer shell and reducing the outer shell weight of the dust box assembly 3. Correspondingly, the dust box cavity 32 is also V-shaped at this time, and the longitudinal cross-sectional shape and size of the dust box cavity 32 and the water vapor cavity 33 are the same.

[0064] Optionally, the opening of the dust box assembly 3 and the top cover 31 may be connected by snap-fit ​​connection, or by other means such as bolt connection to achieve detachable fixation.

[0065] In this embodiment, the steam inlet 331 of the water vapor chamber 33 is detachably connected to the sewage tank 5, and the air outlet 332 is detachably connected to the suction assembly 1. Specifically, the air outlet 332 of the water vapor chamber 33 is connected to the above-mentioned suction pipeline 2 through a quick-release connector, and the steam inlet 331 is connected to the outlet of the sewage tank 5 through a steam inlet pipeline, and the steam inlet pipeline is also connected to the steam inlet 331 of the sewage chamber through a quick-release connector. The specific structural form of the quick-release connector here can adopt the existing technology, and this embodiment will not be repeated.

[0066] In order to further reduce the probability of the sewage in the sewage tank 5 entering the suction assembly 1 along the suction pipeline 2, in addition to the above-mentioned water vapor chamber 33, the suction pipeline 2 in this embodiment is also provided with a filter assembly 7 in series. The water vapor mixture in the suction pipeline 2 will be filtered at the filter assembly 7, the gas will pass through the filter assembly and enter the suction assembly, and the sewage will be blocked on the side of the filter assembly close to the sewage tank.

[0067] Specifically, in order to avoid the problem of sewage filtration failure caused by the clogging of the filter assembly 7, the filter assembly 7 in this embodiment is detachably arranged outside the sewage tank 5. This arrangement allows the filter assembly 7 to be detachably replaced relative to the sewage tank 5. When the filter assembly 7 is clogged or produces odor after long-term use, the filter assembly 7 can be conveniently replaced without opening the sewage tank 5, which reduces the difficulty of replacing the filter assembly 7.

[0068] like Figure 8-Figure 9 As shown, specifically, the filter assembly 7 has a filter chamber and a filter element 71, the filter chamber is divided into a first chamber and a second chamber by the filter element 71, the filter element 71 has a water inlet 73 arranged in the first chamber and a water outlet 72 arranged in the second chamber, the first chamber is connected with a partial structure having a sewage inlet in the sewage suction pipeline 45 (i.e., the connecting pipe portion 74 shown in the figure) through the water inlet 73, the second chamber is connected with the outlet of the sewage suction pipeline 45 through the water outlet 72, and the direction of the water inlet 73 is not toward the filter element 71.

[0069] More specifically, in this embodiment, the filter element 71 is a porous material with filter holes, which allows gas to enter the second cavity from the first cavity. Liquid and solid dirt will be retained in the first cavity. When the first cavity is almost full of solid dirt or the filter element 71 is blocked: the user removes the filter assembly 7 from the main structure, and then opens the first cavity to clean the filter element. Specifically, the filter element here can be a sponge or a water vapor filter membrane.

[0070] The filter chamber in this embodiment is formed by enclosing a shell. In order to facilitate the closing and opening of the filter chamber, the shell is a split structure, and different parts of the shell are detachably fixed by snap fasteners or bolt connections.

[0071] See also Figure 5-Figure 8 In this embodiment, a clean water tank 4 is further included below the sewage tank 5. The suction pipeline 2 and the sewage suction pipeline 45 respectively penetrate the clean water tank 4. The lumens of the suction pipeline 2 and the sewage suction pipeline 45 are not connected to the inner cavity of the clean water tank 4. The filter element 71 is detachably installed on the outer wall of the sewage tank 5 or the outer wall of the clean water tank 4.

[0072] Specifically, the upper end surface of the clean water tank 4 is concave to form a mounting groove, in which the sewage tank 5 is nested, and the upper surface of the sewage tank 5 is flush with the upper surface of the clean water tank 4, so that the sewage tank 5 and the clean water tank 4 form an integrated structure. More specifically, the first boss 41 and the second boss 43 are symmetrically arranged in the mounting groove of the clean water tank 4 along the left and right directions, the first boss 41 is provided with a first interface 42, and the second boss 43 is provided with a second interface 44, the first interface 42 is used to connect to the sewage inlet of the sewage tank 5, and the second interface 44 is used to connect to the gas outlet in the sewage tank 5. Specifically, one end of the first interface 42 (i.e., the upper end shown in the figure) is connected to the sewage inlet of the sewage tank 5, and the other end (i.e., the lower end shown in the figure) is connected to the sewage suction pipeline 45. One end of the second interface 44 is connected to the gas outlet 332 of the sewage tank 5, and the other end is connected to the suction pipeline 2. By disposing the first boss 41 and the second boss 43 , the limiting function of the installation groove for the sewage tank 5 can be increased, so that the sewage tank 5 is stably nested with the clean water tank 4 .

[0073] More specifically, the bottom surface of the installation groove is a plane, and the bottom surface of the sewage tank 5 is connected to the bottom surface of the installation groove; the shape and size of the sewage tank 5 are adapted to the shape and size of the installation groove, so that the outer contours of the sewage tank 5 and the clean water tank 4 are flush.

[0074] Furthermore, in order to scrape and collect the sewage on the surface to be cleaned, and thus improve the sewage suction efficiency of the sewage suction pipeline 45: in this embodiment, a sewage box 6 is installed at the lower part of the clean water tank 4, and the sewage box 6 has a scraping opening facing the cleaning member, and a scraping strip is provided at the scraping opening for scraping the sewage on the cleaning member (such as a mop) into the sewage box, and the lower end of the sewage suction pipeline 45 extends to the inner cavity of the sewage box 6. Here, the outer contour of the sewage box 6 is flush with the outer contour of the clean water tank 4.

[0075] Example 2

[0076] common Figure 9-11This embodiment also provides a cleaning device, which also has a clean water tank 4 and a sewage tank 5, and also includes a first pneumatic stop valve 17 and a second pneumatic stop valve 14 respectively connected to the sewage tank 5. The first pneumatic stop valve 17 is used to control the connection and disconnection between the suction component 1 and the inner cavity of the sewage tank 5. The second pneumatic stop valve 14 is used to control the connection and disconnection between the inner cavity of the sewage tank 5 and the external sewage discharge component. That is, in addition to opening the first pneumatic stop valve through the suction component to evacuate the sewage tank to achieve sewage extraction, the cleaning device in this embodiment also needs to open the second pneumatic stop valve through the suction component to discharge sewage.

[0077] Therefore, in order to improve the utilization efficiency of the suction component and avoid component redundancy caused by using two suction components to drive different pneumatic stop valves respectively, the present embodiment also includes a three-way solenoid valve 9, and the two gas outlets of the three-way solenoid valve 9 are respectively connected to the first pneumatic stop valve 17 and the second pneumatic stop valve 14, and the sewage inlet of the three-way solenoid valve 9 is connected to the suction component 1.

[0078] Different from the first embodiment, the sewage tank 5 and the clean water tank 4 are integrated in the inner cavity of the same shell in this embodiment. Specifically, the inner cavity of the shell is divided into a first cavity 11 and a second cavity 15 which are connected to each other, and a third cavity 18 which is not connected to the first cavity 11 and the second cavity 15, and the first cavity 11 and the second cavity 15 are located on the left and right sides of the inner cavity of the shell. The third cavity 18 is used to store clean water, and the sewage tank 5 is formed by the combination of the first cavity 11 and the second cavity 15, and the first pneumatic stop valve 17 is located in the first cavity 11, and the second pneumatic stop valve 14 is located in the second cavity 15, so as to facilitate the spatial separation of the two pneumatic stop valves.

[0079] Specifically, the suction assembly 1 is connected to the first pneumatic stop valve 17 through the first air supply pipe 10, and the suction assembly 1 is connected to the second pneumatic stop valve 14 through the second air supply pipe 16. The suction assembly 1 here can be an air pump or a fan.

[0080] Specifically, the part of the inner cavity of the shell except the first cavity 11 and the second cavity 15 is the cavity of the clean water tank 4. In order to achieve solid-liquid separation of the dirt flowing into the sewage tank 5, a separation box 13 is provided at the sewage tank 5. The separation box 13 is a box-shaped structure with a filter plate 13, and the air pipe 12 is passed from the outside of the sewage tank 5 into the separation box 13. When in use, one end of the air pipe is aligned with the surface to be cleaned, and the other end is suspended in the separation box 13. When the suction component 1 draws air from the sewage tank 5, the dirt on the surface to be cleaned is sucked into the separation box 13 along the air pipe, and then the solid dirt is filtered and retained inside the separation box 13, and the sewage flows into the first cavity 11 from the filter hole of the separation box 13.

[0081] More specifically, the separation box 13 is located above the bottom surface of the first cavity 11 , so that the sewage can be filtered into the first cavity 11 by utilizing the gravity of the sewage itself.

[0082] It is known that in order to facilitate the removal of dirt from the separation box 13 and to avoid the separation box 13 being full of dirt and affecting its use, the separation box 13 is generally provided in a detachable split structure.

[0083] When it is necessary to suck up sewage from the ground, the three-way solenoid valve 9 is in the first electronically controlled state, the first air supply pipe is connected to the suction component 1, and the suction component supplies air so that the first pneumatic stop valve 17 is turned from a closed state to an open state, and the sewage tank is evacuated to make the tank in a negative pressure state, so that the sewage can enter the first cavity 11 along the air pipe. When it is necessary to discharge sewage, the three-way solenoid valve 9 is in the second electronically controlled state, the second air supply pipe and the suction component 1 are connected, and the suction component controls the second pneumatic stop valve 14 to turn from a closed state to an open state, and the sewage flows out of the second cavity 15 through the second pneumatic stop valve 14.

[0084] In this embodiment, the second pneumatic stop valve 14 specifically includes a seat body 1410 and a sealing assembly, and the sealing assembly specifically includes an elastic member 1420 , a push rod 1430 , a sealing ring 1440 and a bearing 1450 .

[0085] A valve cavity is provided in the seat body 1410, and a sealing assembly is provided in the valve cavity. The valve cavity includes an upper cavity 1411, a middle cavity 1412 and a lower cavity 1413 which are connected in sequence from top to bottom. An air extraction hole is provided at the top of the upper cavity 1411 and is connected to the second air supply pipe. The elastic member 1420 is preferably a spring, and the elastic member 1420 is provided in the upper cavity 1411. The upper wall (or side wall) of the middle cavity 1412 is provided with a water inlet hole 1414 which is connected to the inside of the second cavity, and the connection point between the middle cavity 1412 and the lower cavity 1413 is provided with a water outlet hole 1415 which is connected to the outside of the second cavity. The middle cavity 1412, the lower cavity 1413 and the upper cavity 1411 are circular cavities whose diameters decrease in sequence. The push rod 1430 is located below the elastic member 1420. The upper end of the push rod 1430 extends into the upper cavity 1411 and abuts against the elastic member 1420. The sealing ring 1440 is sleeved on the push rod 1430 and is located above the water outlet 1415. The bearing 1450 for limiting is arranged in the lower cavity 1413, which is provided with a limiting hole. The bearing 1450 does not block the lower cavity 1413, that is, the lower cavity 1413 is connected to the outside. The lower end of the push rod 1430 extends into the limiting hole, thereby defining the track of the push rod 1430 moving up and down together with the upper cavity 1411.

[0086] When the second pneumatic stop valve 14 is not evacuated by the suction assembly 1, the elastic force of the elastic member 1420 causes the push rod 1430 to tend to move downward, so that the push rod 1430 is located at a position where the sealing ring 1440 can close the water outlet hole 1415, and water cannot flow out of the water outlet hole 1415, so that the second pneumatic stop valve 14 is in a closed state. When the second pneumatic stop valve 14 is evacuated by the suction assembly 1, the air pressure drives the push rod 1430 to move upward, overcoming the elastic force of the elastic member 1420, so that the sealing ring 1440 leaves the water outlet hole 1415, and water can flow out of the water outlet hole 1415, so that the second pneumatic stop valve 14 is in an open state.

[0087] Example 3

[0088] See also Fig.12 This embodiment also provides a cleaning device. The structure of this embodiment is basically the same as that of Embodiment 1. The difference is that, in order to improve the separation efficiency of solid dirt and airflow in the dust box cavity 32, a cyclone separator 34 is provided in the dust box cavity 32. Specifically, the cyclone separator 34 includes a conical separation cavity 343, the axis of the separation cavity 343 is arranged vertically, the side wall of the upper end of the separation cavity 343 is provided with a gas separation inlet 342, the top wall of the separation cavity 343 is provided with a separation gas outlet, and a solid particle outlet 341 is provided at the bottom of the separation cavity. A switch for opening and closing the separation cavity is also provided at the solid particle outlet 341. When in use, part of the gas entering the dust box cavity will enter the cyclone separator along the separation inlet 342, and then the cyclone separator 34 will complete the separation of gas and solid particles, and the solid particles will accumulate vertically at the bottom of the cyclone separator 34.

[0089] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments of the foregoing text, but it is easy for those skilled in the art to understand that the protection scope of the present application is not limited to the above preferred embodiments. Without departing from the technical principles of the present application, those skilled in the art may split and combine the technical solutions in the above preferred embodiments, and may also make equivalent changes or replacements to the relevant technical features, and any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present application will fall within the protection scope of the present application.

Claims

1. A cleaning device, comprising a main structure, a sewage tank and a suction assembly are installed on the main structure, the air outlet of the sewage tank is connected to the suction assembly through a suction pipeline, the inlet of the sewage tank is connected to the sewage suction pipeline, the suction assembly is used to suck the ground sewage into the sewage tank through the sewage suction pipeline, characterized in that: Also includes: A water vapor chamber is arranged in series in a suction pipeline, and the outer wall of the water vapor chamber has a steam inlet and an air outlet connected to the water vapor chamber, the steam inlet is connected to the sewage tank, and the air outlet is connected to the suction component, and the steam inlet and the air outlet are located at the upper part of the water vapor chamber.

2. The cleaning device according to claim 1, characterized in that The cleaning device further comprises a dust box assembly, the water vapor chamber is arranged in the dust box assembly and is isolated from the dust box cavity in the dust box assembly which is used for communicating with the dust collecting assembly and accommodating solid dirt.

3. The cleaning device according to claim 2, characterized in that: The cleaning device further comprises a cyclone separator, and the cyclone separator is arranged in the dust box cavity.

4. The cleaning device according to claim 1, characterized in that The lower part of the water vapor chamber is V-shaped.

5. The cleaning device according to claim 1, characterized in that: The water vapor chamber is detachably connected to the suction pipeline.

6. The cleaning device according to claim 1, characterized in that It also includes a filter assembly, which is detachably arranged outside the sewage tank and is serially arranged in the suction pipeline.

7. The cleaning device according to claim 6, characterized in that The filter assembly comprises a filter chamber and a filter element, wherein the filter chamber is divided into a first chamber and a second chamber by the filter element, and the filter element comprises a water inlet arranged in the first chamber and a water outlet arranged in the second chamber, wherein the first chamber is connected with the sewage inlet of the sewage suction pipeline through the water inlet, and the second chamber is connected with the outlet of the sewage suction pipeline through the water outlet, and the direction of the water inlet is not toward the filter element.

8. The cleaning device according to claim 7, characterized in that It also includes a clean water tank below the sewage tank, the suction pipeline runs through the clean water tank, the lumen of the suction pipeline is not connected to the inner lumen of the clean water tank, and the filter element is detachably mounted on the outer wall of the sewage tank or the outer wall of the clean water tank.

9. The cleaning device according to claim 1, characterized in that It also includes a sewage box, which has a sewage scraping port facing the cleaning member, and the lower end of the sewage suction pipeline extends to the inner cavity of the sewage box.

10. The cleaning device according to claim 1, characterized in that The cleaning device also includes a first pneumatic stop valve and a second pneumatic stop valve respectively connected to the sewage tank, wherein the first pneumatic stop valve is used to control the connection and disconnection between the suction component and the inner cavity of the sewage tank; the second pneumatic stop valve is used to control the connection and disconnection between the inner cavity of the sewage tank and the external sewage discharge component; It also includes a three-way solenoid valve, wherein two gas outlets of the three-way solenoid valve are respectively connected to the first pneumatic stop valve and the second pneumatic stop valve, and a gas inlet of the three-way solenoid valve is connected to the suction assembly.

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