Water tank, cleaning device and cleaning system

Abstract

A water tank, a cleaning device, and a cleaning system. The water tank comprises a first housing, a second housing, metal rings, and welded connection portions, wherein the second housing and the first housing are fitted to cover each other, and at least one of the first housing and the second housing is provided with annular grooves; the metal rings are located in the annular grooves, and the shape of the metal rings is adapted to the shape of the annular grooves; and the welded connection portions are connected between the metal rings and the first housing and the second housing, so as to sealingly connect the first housing and the second housing.

Description

Water tanks, cleaning equipment and cleaning systems Cross-references to related applications

[0001] This application claims priority to patent application No. 202520175370.2, filed with the China National Intellectual Property Administration on January 24, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of smart home technology, and more specifically, to a water tank, cleaning equipment, and cleaning system. Background Technology

[0003] Currently, cleaning equipment is equipped with water tanks to provide a continuous water supply for the cleaning department, facilitating the cleaning of surfaces. The water tanks are sealed with sealing rings; however, these rings often have poor sealing performance and are prone to leakage.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this disclosure is to provide a water tank.

[0006] According to one aspect of this disclosure, a water tank is provided, comprising: a first housing; a second housing that covers the first housing, at least one of the first housing and the second housing being provided with an annular groove; a metal ring located within the annular groove, the shape of the metal ring being adapted to the shape of the annular groove; and a welded connection portion connecting the metal ring and the first housing and the second housing to seal the first housing and the second housing together.

[0007] In one exemplary embodiment of this disclosure, the first housing is provided with the annular groove, the second housing is provided with the annular protrusion, the annular protrusion is fitted into the annular groove, and the metal ring is located between the bottom wall of the annular groove and the top surface of the annular protrusion.

[0008] In an exemplary embodiment of this disclosure, the welded connection is connected between the metal ring, the bottom wall of the annular groove, and the top surface of the annular protrusion, and is also connected between the side wall of the annular groove and the side surface of the annular protrusion.

[0009] In one exemplary embodiment of this disclosure, the first housing is provided with the annular groove, the second housing has a second welding plane, and the metal ring is entirely located within the annular groove and connected to the second welding plane.

[0010] In one exemplary embodiment of this disclosure, the welded connection is connected between the metal ring and the bottom wall and side wall of the annular groove, and is also connected between the metal ring and the second welding plane, and between the second welding plane and the connection surface of the first housing where the annular groove is provided.

[0011] In an exemplary embodiment of this disclosure, both the first housing and the second housing are provided with the annular groove. The annular groove in the first housing is a first annular groove, and the annular groove in the second housing is a second annular groove. A portion of the metal ring is located in the first annular groove, and another portion of the metal ring is located in the second annular groove.

[0012] In an exemplary embodiment of this disclosure, the welded connection is connected between the metal ring and the bottom wall and side wall of the first annular groove, and between the metal ring and the bottom wall and side wall of the second annular groove, and also between the connecting surface of the second housing where the second annular groove is provided and the connecting surface of the first housing where the first annular groove is provided.

[0013] In one exemplary embodiment of this disclosure, the cross-section of the annular groove along the first direction is set as a polygon, and the cross-section of the metal ring along the first direction is set as a circle; or, the cross-sectional shape of the annular groove along the first direction is the same as the cross-sectional shape of the metal ring along the first direction, where the first direction is the connection direction between the first housing and the second housing.

[0014] In one exemplary embodiment of this disclosure, the annular groove is configured such that the opening is larger than the bottom.

[0015] In one exemplary embodiment of this disclosure, at least two annular grooves are provided, with at least one annular groove surrounding the other annular grooves; at least two metal rings are provided, with at least one metal ring surrounding the other metal rings; and at least two welded joints are provided, with at least one welded joint surrounding the other welded joints.

[0016] In an exemplary embodiment of this disclosure, the first housing has a first recess, and the side of the first housing where the first recess is disposed has a first annular end face. The first annular end face is disposed around the first recess, and the annular groove is disposed on the first annular end face and is disposed around the first recess. The first recess is used to contain clean water.

[0017] In one exemplary embodiment of this disclosure, the first housing is configured as a flat plate, and the first housing includes a first annular end face.

[0018] In one exemplary embodiment of this disclosure, the second housing has a second recess, and a second annular end face is provided on one side of the second housing where the second recess is provided. The second annular end face is disposed around the second recess, and the second annular end face and the first annular end face are mated and sealed to form a sealed water cavity.

[0019] In one exemplary embodiment of this disclosure, the second housing is configured as a flat plate.

[0020] In one exemplary embodiment of this disclosure, the second housing further includes: an annular baffle connected to the second housing and located within the second recess, the annular baffle being used to contain cleaning agent or disinfectant, the annular groove being provided on the first housing, the end of the annular baffle facing away from the second housing extending at least to the opening of the annular groove, and the welded connection being connected to the metal ring, the annular baffle, and the first housing.

[0021] In one exemplary embodiment of this disclosure, the first housing further includes: a first annular baffle connected to the first housing; a second annular baffle connected to the first housing, the second annular baffle surrounding the first annular baffle, the second annular baffle being spaced apart from the first annular baffle so that the annular groove is provided between the second annular baffle and the first annular baffle, and the end of the annular baffle facing away from the second housing extending into the annular groove.

[0022] In one exemplary embodiment of this disclosure, the first housing further includes: an annular baffle connected to the first housing, the annular baffle being used to contain cleaning agent or disinfectant, the annular groove being provided in the second recess, the end of the annular baffle facing away from the first housing extending at least to the slot opening of the annular groove, and the welded connection being connected to the metal ring, the annular baffle, and the second housing.

[0023] In one exemplary embodiment of this disclosure, the second housing further includes: a first annular baffle connected to the second housing and located within the second recess; a second annular baffle connected to the second housing and located within the second recess, the second annular baffle surrounding the first annular baffle, the second annular baffle being spaced apart from the first annular baffle such that the annular groove is provided between the second annular baffle and the first annular baffle, and the end of the annular baffle facing away from the first housing extending into the annular groove.

[0024] According to another aspect of this disclosure, a cleaning device is provided, comprising: a main body; and a water tank, which is any one of the water tanks described above, the water tank being connected to the main body. In an exemplary embodiment of this disclosure, the main body includes: a cleaning section, the water tank being connected to the cleaning section; and a handheld section connected to the water tank.

[0025] According to another aspect of this disclosure, a cleaning system is provided, comprising: a base station; and a cleaning device, which is any of the cleaning devices described above, the cleaning device being capable of interfacing with the base station.

[0026] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0028] Figure 1 is a three-dimensional structural diagram of an example embodiment of the water tank of this disclosure.

[0029] Figure 2 is a schematic diagram of the structure of the first shell in Figure 1.

[0030] Figure 3 is a schematic diagram of the structure of the second shell in Figure 1.

[0031] Figure 4 is a schematic diagram of the cross-sectional structure shown in Figure 1.

[0032] Figure 5 is a magnified view of the part indicated by H in Figure 4.

[0033] Figure 6 is a magnified view of the part indicated by I in Figure 4.

[0034] Figure 7 is a schematic diagram of another example embodiment of the first housing, the second housing, the metal ring, and the welded connection.

[0035] Figure 8 is a structural schematic diagram of another example embodiment of the first housing, the second housing, the metal ring, and the welded connection.

[0036] Explanation of reference numerals in the attached drawings: 1. First housing; 11. Annular groove; 11a. First annular groove; 12. First recess; 13. First annular end face; 14. First annular baffle; 15. Second annular baffle; 16. Base plate; 161. First outlet; 162. Second outlet; 17. First side plate; 2. Second housing; 21. Annular protrusion; 22. Second welding plane; 23. Second annular groove; 24. Second recess; 25. Second annular end face; 26. Annular baffle; 27. Top plate; 271. First inlet; 272. Second inlet; 28. Second side plate; 3. Metal ring; 4. Welded connection; X. First direction. Detailed Implementation

[0037] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0038] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0039] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0040] In this application, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0041] This disclosure provides a water tank, as shown in Figures 1-8. The water tank may include a first housing 1, a second housing 2, a metal ring 3, and a welded connection 4. The second housing 2 covers the first housing 1, and at least one of the first housing 1 and the second housing 2 is provided with an annular groove 11. The metal ring 3 is located in the annular groove 11, and the shape of the metal ring 3 is adapted to the shape of the annular groove 11. The welded connection 4 connects the metal ring 3 with the first housing 1 and the second housing 2 to seal the first housing 1 and the second housing 2.

[0042] The water tank disclosed herein has two advantages. First, the sealing performance of the welded connection part 4 is better than that of the sealing ring, resulting in better sealing performance of the water tank and making it less prone to leakage. Second, due to the presence of the metal ring 3, the welded connection part 4 can be formed by a high-frequency induced welding process. The high-frequency induction heating technology based on the electromagnetic induction principle is used to induction heat the metal ring 3 embedded in the first housing 1 and / or the second housing 2. The first housing 1 and the second housing 2 near the metal ring 3 are heated and melted, and a joint is formed after cooling. The heating speed is fast, and the first housing 1 and the second housing 2 are less affected, so that the outer surfaces of the first housing 1 and the second housing 2 are basically free of weld marks, and the roughness of the outer surfaces of the first housing 1 and the second housing 2 meets the requirements.

[0043] In this example embodiment, the first housing 1 is made of an organic material. For example, the material of the first housing 1 can be thermoplastic plastics such as PP (Polypropylene), PC (Polycarbonate), ABS (Acrylonitrile Butadiene Styrene plastic, a terpolymer of acrylonitrile (A), butadiene (B), and styrene (S), nylon, and plastics containing glass fibers. The first housing 1 can be formed by injection molding.

[0044] Alternatively, referring to Figures 1, 2, and 4, the first housing 1 has a first recess 12, and a first annular end face 13 is provided on one side of the first housing 1 where the first recess 12 is provided. The first annular end face 13 surrounds the first recess 12. Specifically, the first housing 1 may include a base plate 16 and a plurality of first side plates 17. The plurality of first side plates 17 are all connected to the base plate 16, and the plurality of first side plates 17 are connected end to end in sequence to form an annular shape. The plurality of first side plates 17 forming the annular shape surround the outer periphery of the base plate 16. The plurality of first side plates 17 are arranged substantially perpendicular to the base plate 16, and a rounded chamfer is provided at the corner where the first side plate 17 connects to the base plate 16. The plurality of first side plates 17 and the base plate 16 surround to form the first recess 12, and the side of the plurality of first side plates 17 facing away from the base plate 16 is connected to form the first annular end face 13, such that the first annular end face 13 surrounds the first recess 12.

[0045] The first recess 12 can be used to hold clean water.

[0046] In some exemplary embodiments of this disclosure, the second housing 2 is made of an organic material. For example, the material of the second housing 2 can be thermoplastic plastics such as PP (Polypropylene), PC (Polycarbonate), ABS (Acrylonitrile Butadiene Styrene plastic, a terpolymer of acrylonitrile (A), butadiene (B), and styrene (S), nylon, and plastics containing glass fibers. The second housing 2 can be formed by injection molding.

[0047] Alternatively, referring to Figures 1, 3, and 4, the second housing 2 has a second recess 24, and a second annular end face 25 is provided on one side of the second housing 2 where the second recess 24 is located. The second annular end face 25 surrounds the second recess 24. Specifically, the second housing 2 may include a top plate 27 and a plurality of second side plates 28. The plurality of second side plates 28 are all connected to the top plate 27 and are connected end to end in sequence to form a ring. The plurality of second side plates 28 forming the ring surround the outer periphery of the top plate 27. The plurality of second side plates 28 are arranged substantially perpendicular to the top plate 27, and a rounded chamfer is provided at the corner where the second side plates 28 and the top plate 27 connect. The plurality of second side plates 28 and the top plate 27 surround to form the second recess 24, and the side of the plurality of second side plates 28 facing away from the top plate 27 is connected to form the second annular end face 25, such that the second annular end face 25 surrounds the second recess 24.

[0048] Referring to Figures 1 and 4, the second housing 2 and the first housing 1 are fitted together, that is, the second annular end face 25 and the first annular end face 13 are mated and connected to form a clear water cavity. Specifically, the shape of the second annular end face 25 is the same as the shape of the first annular end face 13, and the dimensions of each part of the second annular end face 25 are also the same as the dimensions of each part of the first annular end face 13, so that the second annular end face 25 and the first annular end face 13 can be mated together; so that the first recess 12 and the second recess 24 are used together to contain clear water.

[0049] The first housing 1 can serve as the lower housing of the water tank and can be installed on the cleaning section. A first outlet 161 is provided on the bottom plate 16 of the first housing 1. The first outlet 161 is disposed opposite to the first recess 12, so that the clean water in the clean water chamber can flow out to the cleaning section through the first outlet 161 to provide a water source for the cleaning section.

[0050] The second housing 2 can serve as the upper housing of the water tank. A first inlet 271 is provided on the top plate 27 of the second housing 2. The first inlet 271 is positioned opposite to the second recess 24, allowing clean water to be injected into the clean water chamber through the first inlet 271.

[0051] Of course, in some other exemplary embodiments of this disclosure, the first housing 1, which serves as the lower housing of the water tank, can be configured as a flat plate, with clean water only contained through the second recess 24 of the second housing 2; in this case, the first housing 1 may include a first annular end face 13, which may be a portion of the plane of the flat first housing 1. Alternatively, the second housing 2, which serves as the upper housing of the water tank, can also be configured as a flat plate, with clean water only contained through the first recess 12 of the first housing 1.

[0052] It should be noted that the first shell 1 can serve as the lower shell of the water tank and the second shell 2 can serve as the upper shell of the water tank, which is determined by the installation and placement of the water tank and does not constitute a limitation of this disclosure.

[0053] At least one of the first housing 1 and the second housing 2 is provided with an annular groove 11. For example, as shown in Figures 2 and 4, the annular groove 11 may be provided on the first housing 1, but not on the second housing 2; or the annular groove 11 may be provided on the second housing 2, but not on the first housing 1; or the annular groove 11 may be provided on both the first housing 1 and the second housing 2.

[0054] Referring to Figures 4-8, the metal ring 3 is located within the annular groove 11. As the name suggests, the metal ring 3 can be made of various metals, such as copper, iron, gold, or silver. The shape of the metal ring 3 matches the shape of the annular groove 11. For example, if the annular groove 11 is circular, the metal ring 3 is also circular; if the annular groove 11 is rectangular, the metal ring 3 is also rectangular; if the annular groove 11 is irregular, the metal ring 3 is also irregular. This ensures that there is a metal ring 3 at every point in the annular groove 11.

[0055] Referring to Figures 4-8, the welded connection 4 connects the metal ring 3 to the first housing 1 and the second housing 2 to seal the first housing 1 and the second housing 2. The sealing performance of the welded connection 4 is better than that of the sealing ring, resulting in better sealing performance of the water tank and reducing the likelihood of leakage. Furthermore, due to the presence of the metal ring 3, the welded connection 4 can be formed using a high-frequency induced welding process. Utilizing high-frequency induction heating technology based on the principle of electromagnetic induction, the metal ring 3 embedded in the first housing 1 and / or the second housing 2 is inductively heated. The first housing 1 and the second housing 2 near the metal ring 3 are heated and melted, forming a joint after cooling. The heating speed is fast, and the first housing 1 and the second housing 2 are less affected, ensuring that virtually no weld marks are formed on the outer surfaces of the first housing 1 and the second housing 2, thus meeting the required surface roughness.

[0056] In this example embodiment, referring to FIG2, an annular groove 11 is provided on the first annular end face 13, that is, an annular groove 11 is provided on the end face of the shell wall of the first housing 1; and the annular groove 11 is provided around the first recess 12. The metal ring 3 provided in the annular groove 11 can align and seal the second annular end face 25 with the first annular end face 13 to form a sealed water cavity, preventing water leakage in the sealed water cavity. Moreover, it ensures that the outer surfaces of the first housing 1 and the second housing 2 will not produce weld marks, so that the roughness of the outer surfaces of the first housing 1 and the second housing 2 meets the requirements.

[0057] In some exemplary embodiments of this disclosure, referring to FIG3, the second housing 2 may further include an annular baffle 26. The annular baffle 26 is connected to the second housing 2 and is substantially perpendicular to the top plate 27. The annular baffle 26 and the second housing 2 can be formed by the same injection molding process, thus ensuring the sealing between the annular baffle 26 and the second housing 2. Specifically, the annular baffle 26 may include four rectangular baffles and one arc-shaped baffle. The four rectangular baffles and the arc-shaped baffle are connected end to end to form the annular baffle 26, and adjacent rectangular baffles and adjacent rectangular baffles and arc-shaped baffles are smoothly connected by a circular arc surface.

[0058] The annular baffle 26 is used to hold cleaning agents or disinfectants. The annular baffle 26 is located within the second recess 24, ensuring that the chamber holding the cleaning agent or disinfectant is located within the chamber holding clean water. If the seal between the annular baffle 26 and the first housing 1 is poor, the cleaning agent or disinfectant will leak into the clean water. Prolonged dissolution of the cleaning agent or disinfectant in the clean water will reduce its effectiveness or even render it ineffective.

[0059] A second outlet 162 is provided on the bottom plate 16 of the first housing 1. The second outlet 162 is disposed opposite to the first recess 12, so that the cleaning agent or disinfectant can flow out to the cleaning part through the second outlet 162.

[0060] A second inlet 272 is provided on the top plate 27 of the second housing 2. The second inlet 272 is disposed opposite to the second recess 24, so that cleaning agent or disinfectant can be injected through the second inlet 272.

[0061] An annular groove 11 is provided in the first recess 12, that is, two annular grooves 11 are provided on the first housing 1; one annular groove 11 surrounds the other annular groove 11, one metal ring 3 can surround the other metal ring 3, and one welded connection part 4 can surround the other welded connection part 4.

[0062] Metal rings 3 cannot be connected to each other. Connecting metal rings 3 to each other will cause a short circuit and prevent the welding function from being achieved.

[0063] Optionally, the minimum spatial distance between two adjacent metal rings 3 is greater than or equal to 10mm. For example, the minimum spatial distance between two adjacent metal rings 3 can be 12mm, 15mm, 17mm, 20mm, 23mm, 25mm, 28mm, 30mm, etc. This setting avoids mutual interference between two adjacent metal rings 3. Specifically, if the distance between two adjacent metal rings 3 is too close, it will cause the energy of one metal ring 3 to be transferred to the other metal ring 3, which will easily lead to over-welding (overflowing adhesive) or even carbonization in the part where the two adjacent metal rings 3 are too close.

[0064] The end of the annular baffle 26 facing away from the second housing 2 extends at least to the opening of the annular groove 11. Similarly, a metal ring 3 is provided in the annular groove 11. Therefore, the welded connection 4 can be formed by a high-frequency induced welding process. Using the high-frequency induction heating technology based on the electromagnetic induction principle, the metal ring 3 embedded between the annular baffle 26 and the first housing 1 is inductively heated. A portion of the annular baffle 26 and the first housing 1 near the metal ring 3 is heated and melted. After cooling, a joint is formed, so that the welded connection 4 is connected to the metal ring 3, the annular baffle 26, and the first housing 1, thereby sealing the connection between the annular baffle 26 and the first housing 1 and preventing the cleaning agent or disinfectant from leaking into the clean water, so as to ensure the effectiveness of the cleaning agent or disinfectant.

[0065] Alternatively, referring to FIG2, the first housing 1 may further include a first annular baffle 14 and a second annular baffle 15; the first annular baffle 14 is connected to the first housing 1 and is located within the first recess 12; the second annular baffle 15 is connected to the first housing 1 and is located within the first recess 12; the first annular baffle 14 and the second annular baffle 15 are substantially perpendicular to the base plate 16, and the first annular baffle 14 and the second annular baffle 15 and the first housing 1 can be formed by the same injection molding process, thus ensuring the sealing between the first annular baffle 14 and the second annular baffle 15 and the first housing 1. The second annular baffle 15 surrounds the first annular baffle 14, and the second annular baffle 15 and the first annular baffle 14 are spaced apart, so that an annular groove 11 is provided between the second annular baffle 15 and the first annular baffle 14.

[0066] The annular baffle 26 extends from the end opposite to the second housing 2 into the annular groove 11. A metal ring 3 is also disposed within the annular groove 11. Therefore, the welded connection 4 can be formed using a high-frequency induced welding process. Utilizing high-frequency induction heating technology based on the principle of electromagnetic induction, the metal ring 3 embedded between the annular baffle 26, the first annular baffle 14, and the second annular baffle 15 is inductively heated. The annular baffle 26, the first annular baffle 14, and the second annular baffle 15 near the metal ring 3 are heated and melted, forming a joint after cooling. This connects the metal ring 3 to the annular baffle 26, the first annular baffle 14, and the second annular baffle 15, thus sealing the connection between the annular baffle 26 and the first and second annular baffles 14 and 15, preventing the leakage of cleaning agents or disinfectants into the water and ensuring the effectiveness of the cleaning agents or disinfectants. Furthermore, the annular baffle 26 forms a "U"-shaped sealing structure with the first and second annular baffles 14 and 15, resulting in a better sealing effect.

[0067] Of course, in some other exemplary embodiments of this disclosure, the annular baffle 26 may be provided in two or more forms, the first annular baffle 14 and the second annular baffle 15 may be provided in two or more sets, such that one annular groove 11 may surround the other two or more annular grooves 11, one metal ring 3 may surround the other two or more metal rings 3, and one welded connection 4 may surround the other two or more welded connection 4.

[0068] In some exemplary embodiments of this disclosure, as shown in Figures 2 and 4-6, an annular groove 11 is provided on the first housing 1. For example, an annular groove 11 is provided on the first annular end face 13, and the second annular baffle 15 is spaced apart from the first annular baffle 14 to form the annular groove 11.

[0069] In addition, in some other exemplary embodiments of this disclosure, the first housing 1 may also include an annular baffle connected to the first housing 1. The annular baffle is substantially perpendicular to the bottom plate 16. The annular baffle and the first housing can be formed by the same injection molding process. Therefore, the sealing between the annular baffle and the first housing can be guaranteed.

[0070] The annular baffle is used to hold cleaning agents or disinfectants. An annular recess 11 is provided in the second recess 24. The end of the annular baffle away from the first housing 1 extends at least to the opening of the annular recess 11. The welded connection 4 connects the metal ring 3, the annular baffle, and the second housing 2. This ensures that the chamber for holding cleaning agents or disinfectants is located within the chamber for holding clean water.

[0071] In this case, the second housing 2 may further include a first annular baffle and a second annular baffle; the first annular baffle is connected to the second housing 2 and located within the second recess 24; the second annular baffle is connected to the second housing 2 and located within the second recess 24. The first and second annular baffles are substantially perpendicular to the top plate 27. The first and second annular baffles and the second housing 2 can be formed by the same injection molding process, thus ensuring the sealing between the first and second annular baffles and the second housing 2. The second annular baffle surrounds the first annular baffle, and the second annular baffle is spaced apart from the first annular baffle so that an annular groove 11 is provided between the second annular baffle and the first annular baffle.

[0072] One end of the annular baffle away from the first housing 1 extends into the annular groove 11. A metal ring 3 is also arranged in the annular groove 11. Therefore, the welded connection part 4 can be formed by a high-frequency induction welding process. Using the high-frequency induction heating technology based on the electromagnetic induction principle, the metal ring 3 buried between the annular baffle, the first annular bar and the second annular bar is inductively heated. The annular baffle, the first annular bar and the second annular bar near the metal ring 3 are heated and melted, and a joint is formed after cooling, so that the welded connection part 4 is connected to the metal ring, the annular baffle, the first annular bar and the second annular bar, thereby sealingly connecting the annular baffle with the first annular bar and the second annular bar, preventing the cleaning agent or disinfectant from leaking into the clean water, and ensuring the effectiveness of the cleaning agent or disinfectant. Moreover, a "冂"-shaped sealing structure is formed between the annular baffle, the first annular bar and the second annular bar, and the sealing effect is better.

[0073] Referring to FIGS. 3-6, an annular protrusion 21 is provided on the second housing 2. For example, an annular protrusion 21 is provided on the second annular end face 25. Specifically, an annular protrusion 21 is provided on the second annular end face 25, and the annular protrusion 21 is located in the middle part of the width direction of the second annular end face 25, so that the second annular end face 25 forms a "几"-shaped structure with the middle protruding from both sides. An annular protrusion 21 is provided on one end of the annular baffle 26 away from the second housing 2. Specifically, an annular protrusion 21 is provided on the end face of the annular baffle 26 away from the second housing 2, and the annular protrusion 21 is located on one side of the width direction of the end face of the annular baffle 26 away from the second housing 2, so that the end face of the annular baffle 26 away from the second housing 2 forms a stepped structure with a single-sided protrusion.

[0074] Of course, in some other exemplary embodiments of the present disclosure, the second annular end face 25 may also form a stepped structure with a single-sided protrusion; the end face of the annular baffle 26 away from the second housing 2 may also form a "几"-shaped structure with the middle protruding from both sides; it may also be that one end of the annular baffle 26 away from the second housing 2 is the annular protrusion 21.

[0075] Referring to FIGS. 4-6, the annular protrusion 21 is fitted into the annular groove 11, and the metal ring 3 is located between the bottom wall of the annular groove 11 and the top surface of the annular protrusion 21. For example, the metal ring 3 can be connected to the top surface of the annular protrusion 21. A recessed structure is provided on the top surface of the annular protrusion 21, and the metal ring 3 is embedded in the recessed structure and protrudes from the recessed structure. Specifically, the metal ring 3 and the annular protrusion 21 are connected by an injection molding process, that is, when the second housing 2 is formed by an injection molding process, the metal ring 3 and the annular protrusion 21 are directly connected.

[0076] In this case, the welded connection 4 connects the metal ring 3, the bottom wall of the annular groove 11, and the top surface of the annular protrusion 21, and also connects the side wall of the annular groove 11 and the side of the annular protrusion 21. A "U"-shaped sealing structure is formed between the annular groove 11 and the annular protrusion 21, resulting in a better sealing effect.

[0077] In some exemplary embodiments of this disclosure, referring to FIG2, an annular groove 11 is provided on the first housing 1. For example, an annular groove 11 is provided on the first annular end face 13, and the second annular baffle 15 is spaced apart from the first annular baffle 14 to form the annular groove 11.

[0078] Referring to FIG7, the second housing 2 has a second welding plane 22. For example, the second annular end face 25 is set as the second welding plane 22, and the end face of the annular baffle 26 facing away from the second housing 2 is set as the second welding plane 22.

[0079] The metal rings 3 are all located within the annular groove 11 and are connected to the second welding plane 22.

[0080] In this case, the welded connection 4 is connected between the metal ring 3 and the bottom wall and side wall of the annular groove 11, and also between the metal ring 3 and the second welding plane 22, and between the second welding plane 22 and the connecting surface of the first housing 1 where the annular groove 11 is located. For example, referring to FIG7, the welded connection 4 is connected between the metal ring 3 and the bottom wall and side wall of the annular groove 11, and also between the metal ring 3 and the second annular end face 25, and also between the second annular end face 25 and the first annular end face 13.

[0081] Of course, when the second annular baffle 15 and the first annular baffle 14 are spaced apart to form an annular groove 11, and the end face of the annular baffle 26 facing away from the second housing 2 is set as the second welding plane 22, the welding connection part 4 is connected to the side wall of the metal ring 3 and the first annular baffle 14 and the second annular baffle 15 that are close to each other, connected to the first housing 1 between the first annular baffle 14 and the second annular baffle 15, and connected to the end face of the metal ring 3 and the annular baffle 26 facing away from the second housing 2, and also connected to the end face of the annular baffle 26 facing away from the second housing 2 and the end faces of the first annular baffle 14 and the second annular baffle 15 facing away from the first housing 1.

[0082] In some exemplary embodiments of this disclosure, referring to FIG8, both the first housing 1 and the second housing 2 are provided with annular grooves 11. The annular groove 11 provided in the first housing 1 is a first annular groove 11a, and the annular groove 11 provided in the second housing 2 is a second annular groove 23. For example, the first annular groove 11a is provided on the first annular end face 13, and the second annular groove 23 is provided on the second annular end face 25. The second annular baffle 15 is spaced apart from the first annular baffle 14 to form the first annular groove 11a, and the second annular groove 23 is provided on the end face of the annular baffle 26 away from the second housing 2.

[0083] A portion of the metal ring 3 is located within the first annular groove 11a, and another portion of the metal ring 3 is located within the second annular groove 23; specifically, a portion of the metal ring 3 in the first direction X is located within the first annular groove 11a, and another portion of the metal ring 3 in the first direction X is located within the second annular groove 23.

[0084] In this case, the welded connection 4 is connected between the metal ring 3 and the bottom wall and side wall of the first annular groove 11a, and between the metal ring 3 and the bottom wall and side wall of the second annular groove 23. It is also connected between the connecting surface of the second housing 2 where the second annular groove 23 is provided and the connecting surface of the first housing 1 where the first annular groove 11a is provided.

[0085] For example, as shown in FIG8, the welded connection 4 is connected between the metal ring 3 and the bottom wall and side wall of the first annular groove 11a, and is also connected between the metal ring 3 and the bottom wall and side wall of the second annular groove 23, and is also connected between the first annular end face 13 and the second annular end face 25.

[0086] Of course, when the second annular baffle 15 and the first annular baffle 14 are spaced apart to form an annular groove 11, and the annular baffle 26 is provided with a second annular groove 23 on the end face away from the second housing 2, the welded connection part 4 is connected to the side wall of the metal ring 3 and the first annular baffle 14 and the second annular baffle 15 that are close to each other, connected to the first housing 1 between the first annular baffle 14 and the second annular baffle 15, and connected between the bottom wall and the side wall of the groove of the metal ring 3 and the second annular groove 23, and also connected to the end face of the annular baffle 26 away from the second housing 2 and the end faces of the first annular baffle 14 and the second annular baffle 15 away from the first housing 1.

[0087] Referring to Figures 5-7, the cross-section of the annular groove 11 along the first direction X is set as a polygon. For example, the polygon may only include straight edge lines; the polygon may also include not only straight edge lines but also the edge lines of an arc; the polygon may also include not only straight edge lines but also the edge lines of two arcs.

[0088] The cross-section of the metal ring 3 along the first direction X is set to be circular. In this case, when there is no welding, the maximum size of the metal ring 3 is such that the metal ring 3 is tangent to the annular groove 11. The metal ring 3 and the corner of the polygon can form a receiving space to receive the material of the first shell 1 or the second shell 2 after melting. This allows the welded connection 4 formed after cooling and solidification to connect the metal ring 3 with the first shell 1 and the second shell 2, so as to seal the connection between the first shell 1 and the second shell 2.

[0089] Of course, in some other exemplary embodiments of this disclosure, the cross-sectional shape of the annular groove 11 along the first direction X can be the same as the cross-sectional shape of the metal ring 3 along the first direction X. For example, referring to FIG8, the cross-sectional shape of the annular groove 11 along the first direction X can be set as rectangular, and the cross-sectional shape of the metal ring 3 along the first direction X can also be set as rectangular. In this case, when there is no welding, the width of the metal ring 3 can be less than the width of the annular groove 11, or the height of the metal ring 3 can be less than the height of the annular groove 11, or the width of the metal ring 3 can be less than the width of the annular groove 11, and the height of the metal ring 3 can be less than the height of the annular groove 11, so that the metal ring 3 and the annular groove 11 can form a receiving space for receiving the molten material of the first shell 1 or the second shell 2, so that the welded joint 4 formed after cooling and solidification is connected between the metal ring 3 and the first shell 1 and the second shell 2 to seal the first shell 1 and the second shell 2.

[0090] Specifically, the cross-sectional shape of the first annular groove 11a along the first direction X can be set to a rectangle, the cross-sectional shape of the second annular groove 23 along the first direction X can be set to a rectangle, and the cross-sectional shape of the metal ring 3 along the first direction X can also be set to a rectangle; the annular width of the first annular groove 11a is equal to the annular width of the second annular groove 23, and the annular width of the first annular groove 11a is equal to the annular width of the metal ring 3, so that the width direction of the metal ring 3 can fit against the sidewalls of the two grooves of the first annular groove 11a, and the width direction of the metal ring 3 can fit against the sidewalls of the two grooves of the second annular groove 23. This allows the sidewalls of the first annular groove 11a and the second annular groove 23 to melt rapidly. The sum of the depths of the first annular groove 11a and the second annular groove 23 is greater than the height of the metal ring 3, so that the metal ring 3, the first annular groove 11a, and the second annular groove 23 form a receiving space in the height direction to receive the material of the first shell 1 or the second shell 2 after melting. This allows the welded connection 4 formed after cooling and solidification to connect the metal ring 3 with the first shell 1 and the second shell 2, thereby sealing the first shell 1 and the second shell 2 together.

[0091] For example, the cross-sectional shape of the annular groove 11 along the first direction X can be set to semi-circular, and the cross-sectional shape of the metal ring 3 along the first direction X can also be set to semi-circular. In this case, when there is no welding, the radius of the metal ring 3 can be smaller than the radius of the annular groove 11, so that the metal ring 3 and the annular groove 11 can form a receiving space to receive the molten material of the first shell 1 or the second shell 2, so that the welded joint 4 formed after cooling and solidification is connected between the metal ring 3 and the first shell 1 and the second shell 2 to seal the first shell 1 and the second shell 2.

[0092] Of course, the cross-sectional shape of the annular groove 11 along the first direction X and the cross-sectional shape of the metal ring 3 along the first direction X are not limited to the above description. The cross-sectional shape of the annular groove 11 along the first direction X and the cross-sectional shape of the metal ring 3 along the first direction X can also be other shapes, which will not be described one by one here.

[0093] Alternatively, the annular groove 11 can be configured such that the opening is larger than the bottom. For example, the cross-section of the annular groove 11 along the first direction X can be trapezoidal, rounded trapezoidal, etc. This configuration facilitates the installation of the metal ring 3; when the annular protrusion 21 is provided, it also facilitates the insertion of the annular protrusion 21 into the annular groove 11.

[0094] It should be noted that the first direction X is the depth direction of the annular groove 11, or the first direction X is the connection direction between the first housing 1 and the second housing 2. The first direction X is perpendicular to the bottom plate 16 of the first housing 1 and perpendicular to the top plate 27 of the second housing 2.

[0095] Based on the same inventive concept, this disclosure provides a cleaning device, which may include a main body and a water tank; the water tank is any of the water tanks described above, and the water tank is connected to the main body. The specific structure of the water tank has been described in detail above, and therefore will not be repeated here.

[0096] The main body may include a cleaning unit and a handheld unit; the water tank is connected to the cleaning unit; the handheld unit is connected to the water tank, specifically, the handheld unit can be connected to the water tank through a movable buckle structure.

[0097] Cleaning equipment can include floor scrubbers, robot vacuums, and vacuum and mop combos.

[0098] Based on the same inventive concept, this disclosure provides an example embodiment of a cleaning system, which may include a base station and a cleaning device; the cleaning device is the cleaning device described above, and the cleaning device is capable of docking with the base station. The base station can charge, replenish water, and clean the cleaning device, or suck out the dirt stored in the cleaning device.

[0099] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of this disclosure. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A water tank, comprising: First shell; The second housing covers the first housing, and at least one of the first housing and the second housing is provided with an annular groove; A metal ring is located within the annular groove, and the shape of the metal ring is adapted to the shape of the annular groove; A welded connection is provided between the metal ring and the first housing and the second housing to seal the connection between the first housing and the second housing.

2. The water tank according to claim 1, wherein, The first housing is provided with the annular groove, and the second housing is provided with the annular protrusion. The annular protrusion fits into the annular groove, and the metal ring is located between the bottom wall of the annular groove and the top surface of the annular protrusion.

3. The water tank according to claim 2, wherein, The welded connection is connected between the metal ring, the bottom wall of the annular groove, and the top surface of the annular protrusion, and is also connected between the side wall of the annular groove and the side surface of the annular protrusion.

4. The water tank according to claim 1, wherein, The first housing is provided with the annular groove, the second housing has a second welding plane, and the metal ring is entirely located within the annular groove and connected to the second welding plane.

5. The water tank according to claim 4, wherein, The welded connection is connected between the metal ring and the bottom wall and side wall of the annular groove, and is also connected between the metal ring and the second welding plane, and between the second welding plane and the connection surface of the annular groove provided in the first housing.

6. The water tank according to claim 1, wherein, Both the first housing and the second housing are provided with the annular groove. The annular groove in the first housing is a first annular groove, and the annular groove in the second housing is a second annular groove. A part of the metal ring is located in the first annular groove, and the other part of the metal ring is located in the second annular groove.

7. The water tank according to claim 6, wherein, The welded connection is connected between the metal ring and the bottom wall and side wall of the first annular groove, and between the metal ring and the bottom wall and side wall of the second annular groove. It is also connected between the connecting surface of the second housing where the second annular groove is provided and the connecting surface of the first housing where the first annular groove is provided.

8. The water tank according to any one of claims 1 to 7, wherein, The cross-section of the annular groove along the first direction is set as a polygon, and the cross-section of the metal ring along the first direction is set as a circle; or, the cross-sectional shape of the annular groove along the first direction is the same as the cross-sectional shape of the metal ring along the first direction, where the first direction is the depth direction of the annular groove.

9. The water tank according to any one of claims 1 to 7, wherein, The annular groove is configured such that the opening is larger than the bottom.

10. The water tank according to claim 1, wherein, The annular grooves are configured in at least two ways, with at least one annular groove surrounding the other annular grooves; the metal rings are configured in at least two ways, with at least one metal ring surrounding the other metal rings; the welded joints are configured in at least two ways, with at least one welded joint surrounding the other welded joints.

11. The water tank according to claim 10, wherein, The first housing has a first recessed portion, and the first housing has a first annular end face on one side where the first recessed portion is provided. The first annular end face is provided around the first recessed portion, and the annular groove is provided on the first annular end face and is provided around the first recessed portion. The first recessed portion is used to contain clean water.

12. The water tank according to claim 10, wherein, The first housing is configured as a flat plate and includes a first annular end face.

13. The water tank according to claim 11 or 12, wherein, The second housing has a second recess, and a second annular end face is provided on one side of the second housing where the second recess is provided. The second annular end face is provided around the second recess, and the second annular end face and the first annular end face are mated and sealed to form a sealed water cavity.

14. The water tank according to claim 11, wherein, The second housing is configured as a flat plate.

15. The water tank according to claim 13, wherein, The second housing also includes: An annular baffle is connected to the second housing and located within the second recess. The annular baffle is used to contain cleaning agents or disinfectants. An annular groove is provided on the first housing. The end of the annular baffle facing away from the second housing extends at least to the opening of the annular groove. The welded connection is connected to the metal ring, the annular baffle, and the first housing.

16. The water tank according to claim 15, wherein, The first housing also includes: The first annular baffle is connected to the first housing; The second annular baffle is connected to the first housing. The second annular baffle surrounds the first annular baffle and is spaced apart from the first annular baffle so that the annular groove is provided between the second annular baffle and the first annular baffle. The end of the annular baffle away from the second housing extends into the annular groove.

17. The water tank according to claim 13, wherein, The first housing also includes: An annular baffle is connected to the first housing. The annular baffle is used to contain cleaning agents or disinfectants. An annular groove is provided in the second recess. The end of the annular baffle facing away from the first housing extends at least to the opening of the annular groove. The welded connection is connected to the metal ring, the annular baffle, and the second housing.

18. The water tank according to claim 17, wherein, The second housing also includes: The first annular baffle is connected to the second housing and is located within the second recess; The second annular baffle is connected to the second housing and located in the second recess. The second annular baffle surrounds the first annular baffle and is spaced apart from the first annular baffle so that the annular groove is provided between the second annular baffle and the first annular baffle. The end of the annular baffle away from the first housing extends into the annular groove.

19. A cleaning device, comprising: Main body; The water tank is the water tank according to any one of claims 1 to 18, and the water tank is connected to the main body.

20. The cleaning equipment according to claim 19, wherein, The main body includes: The water tank is connected to the cleaning section; The handheld part is connected to the water tank.

21. A cleaning system, comprising: Base station; The cleaning device is the cleaning device as described in claim 19 or 20, and the cleaning device is capable of docking with the base station.

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