Water tank structure and cleaning apparatus

Abstract

The application provides a water tank structure and a cleaning device. The water tank structure comprises a tank body and a tank cover assembly. The tank body has a containing cavity. One end of the containing cavity has an outlet. The tank cover assembly comprises a tank cover and a sealing element. At least a part of the tank cover is arranged in the containing cavity through the outlet. The sealing element is connected with the tank cover and is located in the containing cavity. The sealing element has an inflatable cavity. The volume of the inflatable cavity is variable. In the water tank structure, the sealing performance of the sealing element is good, and the tank cover assembly is convenient to disassemble and assemble.

Description

Technical Field

[0001] This application relates to the field of environmental cleaning electrical appliances, and in particular to a water tank structure and cleaning equipment. Background Technology

[0002] In the prior art, floor scrubbing machines include a machine body and a wastewater tank. The wastewater tank mainly includes a wastewater tank body, a wastewater tank cover, and a sealing structure. The wastewater tank cover can be placed on the open end of the wastewater tank body, and the sealing structure is connected to the wastewater tank cover so that the wastewater tank cover is sealed to the wastewater tank body through the sealing structure, thereby improving the sealing performance of the wastewater tank.

[0003] However, due to the interference fit between the sealing structure and the sewage tank body, it is necessary to pull the sewage tank cover off the sewage tank body with force, which causes sewage to overflow. When the sewage tank cover is put back into the sewage tank body, it is necessary to press it in with force, making assembly difficult and thus making the disassembly and assembly of the sewage tank cover quite difficult. Utility Model Content

[0004] Based on this, this application provides a water tank structure and a cleaning device to address the shortcomings of related technologies.

[0005] In a first aspect, this application provides a water tank structure, comprising:

[0006] The box has a receiving cavity, and one end of the receiving cavity has an outlet;

[0007] A box cover assembly includes a box cover and a seal, at least a portion of the box cover and the seal are disposed in a receiving cavity via an outlet, the seal is disposed circumferentially along the outlet and connected to the box cover, the seal has an inflation cavity with a variable volume.

[0008] The water tank structure provided in this application improves the sealing performance of the water tank by providing a receiving cavity for containing liquid, an outlet for easy liquid pouring, a tank cover for closing the outlet, and a sealing element that abuts against the side wall of the receiving cavity and the tank cover. Because the sealing element has an adjustable-volume inflation chamber, it can dynamically switch between an expanded and contracted state. Thus, during operation of the water tank structure, the sealing element can be controlled to be in an expanded state, resulting in an interference fit between the sealing element and the side wall of the receiving cavity, thereby improving the sealing performance. Conversely, during disassembly and installation of the tank cover, the sealing element can be controlled to be in a contracted state, resulting in a clearance fit between the sealing element and the side wall of the receiving cavity, thereby reducing the friction between the sealing element and the side wall of the receiving cavity. This reduces the user's operating effort and prevents sewage leakage due to excessive operating force.

[0009] In one possible implementation, the water tank structure further includes a drive pump assembly connected to the tank cover and communicating with the air chamber. The drive pump assembly has a first working state and a second working state.

[0010] When the drive pump assembly is in the first working state, it injects air into the inflation chamber. When the drive pump assembly is in the second working state, the inflation chamber deflates.

[0011] Thus, since the drive pump assembly is connected to the inflation chamber, when the cover is normally installed on the housing, the drive pump assembly can be controlled to be in the first operating state. This allows the drive pump assembly to inflate the inflation chamber, causing it to expand and thus inflate the seal, which facilitates an interference fit between the seal and the side wall of the receiving cavity. During the disassembly and installation of the cover, the drive pump assembly can be controlled to be in the second operating state. The inflation chamber deflates and contracts, causing the seal to contract and thus creating a gap between the seal and the side wall of the receiving cavity. This reduces friction between them, facilitating the disassembly and assembly of the cover assembly.

[0012] In one possible implementation, the drive pump assembly includes a pump body and a plunger, with the pump body connected to a housing cover and a portion of the plunger inserted into the pump body.

[0013] A compression chamber is defined between the pump body and the plunger. The plunger moves relative to the pump body to change the volume of the compression chamber, which is connected to the inflation chamber.

[0014] In this way, the volume of the compression chamber can be changed by the relative movement between the plunger and the pump body, thereby changing the volume of the inflation chamber and thus altering the fit between the seal and the sidewall of the receiving chamber.

[0015] In one possible implementation, the drive pump assembly further includes an elastic reset member disposed in the compression chamber and abutting against the plunger and the pump body, with the elastic force of the elastic reset member pointing towards the plunger.

[0016] Thus, the elastic reset member abuts between the plunger and the pump body, and the elastic force of the elastic reset member points towards the plunger. The elastic force of the elastic reset member can drive the plunger to move away from the pump body, thereby increasing the volume of the compression chamber.

[0017] In one possible implementation, the seal includes an interconnected hollow ring and a connecting pipe, with the inflation chamber located within the hollow ring and the connecting pipe connecting the inflation chamber and the compression chamber.

[0018] In this way, the gas can circulate between the inflation chamber, the connecting pipe and the compression chamber. When the volume of the compression chamber changes, air will enter or flow out of the compression chamber through the connecting pipe, which in turn causes the volume of the inflation chamber to change.

[0019] In one possible implementation, the lid assembly also includes a handle located outside the receiving cavity and rotatably connected to the lid to switch between a first position and a second position.

[0020] The handle is connected to the drive pump assembly. When the handle is switched from the second position to the first position, the drive pump assembly is in the first working state. When the handle is switched from the first position to the second position, the drive pump assembly is in the second working state.

[0021] When the user needs to disassemble and install the lid assembly, the handle is changed from a folded state to an unfolded state, making it easier for the user to hold the handle. Since the handle is connected to the drive pump assembly, during this process, the handle can drive the drive pump assembly to switch to a second working state, which allows the gas in the inflation chamber to be recovered into the compression chamber, thereby causing the seal to contract and thus reducing the resistance to the installation and disassembly of the lid assembly.

[0022] In one possible implementation, the handle includes a handle part and a rotating part connected to each other, the rotating part being rotatably connected to the lid;

[0023] The rotating part abuts against the drive pump assembly.

[0024] Thus, when the user rotates the handle to switch between a folded and unfolded state, the rotating part can be rotated relative to the lid, causing different positions of the rotating part to come into contact with the drive pump assembly, thereby switching the drive pump assembly between a first working state and a second working state.

[0025] In one possible implementation, the rotating part has a rotating hole and a contact surface, and the box cover has a rotating shaft that is rotatably connected to the rotating hole;

[0026] The contact surface surrounds the outer periphery of the rotating hole. The contact surface has a first abutment position and a second abutment position. The distance T1 from the first abutment position to the rotating hole and the distance T2 from the second abutment position to the rotating hole satisfy: T1 > T2.

[0027] When the first contact point contacts the drive pump assembly, the handle is in the first position; when the second contact point contacts the drive pump assembly, the handle is in the second position.

[0028] Thus, when the position of the plunger abutting the contact surface changes from the first abutting position to the second abutting position, since the distance from the second abutting position to the rotating hole is less than the distance from the first abutting position to the rotating hole, the elastic force of the elastic reset member is greater than the pressure of the rotating part. The combined force drives the plunger to move away from the pump body along its own length direction, thereby driving the pump assembly to the second working state, which in turn increases the volume of the compression chamber, thereby causing the seal to be in a contracted state.

[0029] When the position of the plunger abutting the contact surface changes from the second abutting position to the first abutting position, since the distance from the first abutting position to the rotating hole is greater than the distance from the second abutting position to the rotating hole, the elastic force of the elastic reset member is less than the pressure of the rotating part. The combined force drives the plunger to move towards the pump body along its own length direction, thereby driving the pump assembly to the first working state, which in turn reduces the volume of the compression chamber, thereby causing the seal to be in an expanded state.

[0030] In one possible implementation, the second abutment and the handle are located on opposite sides of the rotating hole, and the first abutment and the handle are located on adjacent sides of the rotating hole.

[0031] Thus, when the user rotates the handle, turning it about 90° away from the lid will cause the second contact point to contact the drive pump assembly. At this time, the handle is basically in a vertical position, making it easy for the user to hold. Turning the handle about 90° towards the lid will cause the first contact point to contact the drive pump assembly. The operation is relatively simple and convenient.

[0032] Secondly, this application provides a cleaning device, comprising:

[0033] The water tank structure provided in the first aspect above;

[0034] The fuselage and water tank structure are connected to the fuselage.

[0035] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the water tank structure and cleaning equipment provided by this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the water tank structure provided in the embodiments of this application;

[0038] Figure 2 This is another structural schematic diagram of the water tank structure provided in the embodiments of this application;

[0039] Figure 3 for Figure 1 The main view;

[0040] Figure 4 for Figure 2 Exploded view;

[0041] Figure 5 for Figure 1 Exploded view;

[0042] Figure 6 for Figure 5 Schematic diagram of the central handle, drive pump assembly, and seals;

[0043] Figure 7 for Figure 1 Internal structure diagram;

[0044] Figure 8 for Figure 7 A magnified view of the area within the dashed circle;

[0045] Figure 9 for Figure 2 Internal structure diagram;

[0046] Figure 10 for Figure 9 A magnified view of the area within the dashed circle;

[0047] Figure 11 for Figure 5 A schematic diagram of the structure of the middle handle component.

[0048] Explanation of reference numerals in the attached figures:

[0049] 100-Box body; 110-Receiving cavity; 111-Outlet; 200-Box cover assembly; 210-Box cover; 210a-First cover; 210b-Second cover; 220-Seal; 221-Inflation cavity; 220a-Hollow ring; 220b-Connecting pipe; 230-Handle; 231-Handle part; 232-Rotating part; 2321-Turn hole; 2322-Contact surface; 23221-First abutment position; 23222-Second abutment position; 300-Drive pump assembly; 310-Pump body; 320-Plunger; 321-Plunger rod; 322-Sealing ring; 330-Compression cavity; 340-Elastic reset element. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0051] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0052] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0053] The terms "first," "second," and "third" (if any) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.

[0054] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or display that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or display.

[0055] In existing technology, floor scrubbers include a machine body and a wastewater tank. The wastewater tank mainly consists of a tank body, a lid, and a sealing structure. The lid can be placed over the open end of the tank body, and the sealing structure is connected to the lid to create a sealed connection between the lid and the tank body, thereby improving the tank's sealing performance. However, due to the interference fit between the sealing structure and the tank body, removing the lid requires force, leading to wastewater overflow. Similarly, inserting the lid requires force, making assembly difficult and consequently, disassembling the lid quite challenging.

[0056] In view of the above problems, this application provides a water tank structure and a cleaning device. The water tank structure provides an inflation chamber within the seal, and the volume of the inflation chamber is variable, so that the seal can switch between an expanded state and a contracted state. When the tank cover assembly is installed on the tank body, the seal can be controlled to be in an expanded state, thereby making the seal and the tank body an interference fit, thus improving the sealing performance of the water tank structure. When the tank cover assembly needs to be removed from the tank body, the seal can be controlled to be in a contracted state, thereby making the seal and the tank body a clearance fit, thus facilitating the removal of the entire tank cover assembly from the tank body.

[0057] The following describes in detail the specific implementation of the water tank structure and cleaning equipment provided in the embodiments of this application, with reference to the accompanying drawings.

[0058] Reference Figure 1 , Figure 2 , Figure 3 As shown in the embodiment of this application, the cleaning equipment includes a water tank structure and a body, with the water tank structure connected to the body.

[0059] The water tank structure of this application embodiment can be applied to cleaning equipment. The water tank structure can be used to recycle wastewater generated during the wet mopping operation of the cleaning equipment. In order to facilitate cleaning of the water tank structure and avoid wastewater remaining in the water tank structure for too long and producing odor, the water tank structure can be detachably connected to the machine body so that users can clean the water tank structure after each use.

[0060] Reference Figure 3 , Figure 4 , Figure 5 As shown, based on the above embodiments, this application also provides a water tank structure, which includes a tank body 100 and a tank cover assembly 200. The tank body 100 has a receiving cavity 110, and one end of the receiving cavity 110 has an outlet 111.

[0061] The lid assembly 200 includes a lid 210 and a seal 220. At least a portion of the lid 210 is disposed in the receiving cavity 110 via an outlet 111. The seal 220 is disposed circumferentially along the outlet 111 and connected to the lid 210. The seal 220 is located in the receiving cavity 110 and has an inflation chamber 221 with a variable volume.

[0062] In this embodiment of the application, the receiving cavity 110 is used to receive liquid, and the outlet 111 is used to facilitate the entry of part of the lid 210 into the receiving cavity 110 so as to close the receiving cavity 110 by the lid 210, thereby preventing liquid leakage, and to facilitate the removal of the lid 210 to open the outlet 111, thereby facilitating the pouring out of the liquid in the receiving cavity 110.

[0063] The seal 220 is arranged circumferentially along the outlet 111 and abuts against the side wall of the receiving cavity 110 and the tank cover 210 to improve the sealing performance of the water tank structure. The tank cover 210 may have a mounting groove, and the seal 220 is disposed within the mounting groove, thereby fixing the seal 220 to the tank cover 210, allowing the seal 220 to move along with the tank cover 210.

[0064] Because the seal 220 has a variable volume air chamber 221, the state of the seal 220 can change dynamically, making it easy to control the state of the seal 220 according to requirements.

[0065] For example, when the cover 210 is installed on the box body 100, the seal 220 abuts against the side wall of the receiving cavity 110 and the cover 210, the volume of the inflation cavity 221 increases, which causes the seal 220 to be in an expanded state, and thus the seal 220 and the side wall of the receiving cavity 110 are in an interference fit relationship, thereby effectively improving the sealing performance of the seal 220.

[0066] When it is necessary to clean the sewage in the receiving cavity 110, although the seal 220 is still abutting between the side wall of the receiving cavity 110 and the cover 210, the volume of the inflation cavity 221 can be reduced, thereby causing the seal 220 to be in a contracted state. This results in a clearance fit between the seal 220 and the side wall of the receiving cavity 110, which reduces the friction between the seal 220 and the side wall of the receiving cavity 110. This makes it easier to remove the cover assembly 200 from the box body 100. During the removal process, the user's operating force is small, which effectively prevents sewage from leaking out of the receiving cavity 110.

[0067] Subsequently, after cleaning the sewage, the volume of the inflation chamber 221 can be reduced, thereby causing the seal 220 to be in a contracted state. The user can easily insert the inlet into the receiving chamber 110. After the cover 210 and the box body 100 are installed, the seal 220 can be controlled to be in an expanded state.

[0068] Compared with the prior art, in the embodiments of this application, the fit between the seal 220 and the housing 100 is dynamically adjustable, which can meet both the requirements of high sealing performance and the requirements of quick assembly and disassembly.

[0069] The water tank structure provided in this embodiment includes a tank body 100 and a tank cover assembly 200. The tank body 100 includes a receiving cavity 110 and an outlet 111, and the tank cover assembly 200 includes a tank cover 210 and a sealing element 220. By providing the receiving cavity 110 to receive liquid, providing the outlet 111 to facilitate liquid pouring, providing the tank cover 210 to close the outlet 111, and providing the sealing element 220 to abut against the side wall of the receiving cavity 110 and the tank cover 210, the sealing performance of the water tank structure is improved. Since the sealing element 220 has an adjustable-volume inflation chamber 221, the sealing element 220 can dynamically switch between an expanded state and a contracted state. In this way, during the operation of the water tank structure, the seal 220 can be controlled to be in an expanded state, so that the seal 220 and the side wall of the receiving cavity 110 are in an interference fit, which helps to improve the sealing performance of the seal 220. Furthermore, during the removal and installation of the tank cover 210, the seal 220 can be controlled to be in a contracted state, so that the seal 220 and the side wall of the receiving cavity 110 are in a clearance fit, which helps to reduce the friction between the seal 220 and the side wall of the receiving cavity 110, thereby reducing the user's operating force and preventing sewage from leaking due to excessive operating force.

[0070] Reference Figure 5 , Figure 6 As shown, in one possible implementation, the water tank structure further includes a drive pump assembly 300, which is connected to the tank cover 210 and communicates with the air chamber 221. The drive pump assembly 300 has a first working state and a second working state.

[0071] When the drive pump assembly 300 is in the first working state, the drive pump assembly 300 injects air into the inflation chamber 221. When the drive pump assembly 300 is in the second working state, the inflation chamber 221 deflates.

[0072] Thus, since the drive pump assembly 300 is connected to the inflation chamber 221, when the cover 210 is normally installed on the housing 100, the drive pump assembly 300 can be controlled to be in the first working state, thereby causing the drive pump assembly 300 to inject air into the inflation chamber 221. The inflation chamber 221 expands due to the injection of air, thereby causing the seal 220 to be in an expanded state, which helps to achieve an interference fit between the seal 220 and the side wall of the receiving cavity 110. During the disassembly and installation of the cover 210, the drive pump assembly 300 can be controlled to be in the second working state. The inflation chamber 221 contracts due to the release of air, thereby causing the seal 220 to be in a contracted state, which helps to form a gap between the seal 220 and the side wall of the receiving cavity 110, thereby reducing the friction between the two and facilitating the disassembly and assembly of the cover assembly 200.

[0073] The drive pump assembly 300 can be either manual or electric.

[0074] Reference Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, in some embodiments, the drive pump assembly 300 includes a pump body 310 and a plunger member 320. The pump body 310 is connected to a housing cover 210, and a portion of the plunger member 320 is inserted into the pump body 310. A compression chamber 330 is defined between the pump body 310 and the plunger member 320. The plunger member 320 is movable relative to the pump body 310 to change the volume of the compression chamber 330, which communicates with the inflation chamber 221.

[0075] It should be noted that the plunger component 320 may include a plunger rod 321 and a sealing ring 322. The sealing ring 322 is sleeved on the plunger rod 321 and abuts against the plunger rod 321 and the pump body 310 to ensure the sealing of the compression chamber 330. The length direction of the plunger rod 321 is consistent with the height direction of the housing 100, and the plunger rod 321 can move along its own length direction.

[0076] Since the plunger 320 can move back and forth relative to the pump body 310 along the height direction of the housing 100, when the plunger 320 moves towards the pump body 310 along the height direction of the housing 100, the volume of the compression chamber 330 decreases, thereby injecting air into the inflation chamber 221, which causes the seal 220 to expand. When the plunger 320 moves away from the pump body 310 along the height direction of the housing 100, the volume of the compression chamber 330 increases, thereby causing the gas in the inflation chamber 221 to be recovered into the compression chamber 330, which in turn causes the inflation chamber 221 to deflate, thus causing the seal 220 to contract.

[0077] In this way, the volume of the compression chamber 330 can be changed by the relative movement between the plunger 320 and the pump body 310, thereby changing the volume of the inflation chamber 221 and thus changing the fit between the seal 220 and the side wall of the receiving chamber 110.

[0078] It is understandable that the process of the plunger 320 moving towards the pump body 310 can be regarded as the drive pump assembly 300 being in a first working state, at which time the drive pump assembly 300 injects air into the inflation chamber 221. The process of the plunger 320 moving away from the pump body 310 can be regarded as the drive pump assembly 300 being in a second working state, at which time the gas in the inflation chamber 221 is recovered into the compression chamber 330. In some embodiments, the drive pump assembly 300 further includes an elastic reset member 340, which is disposed in the compression chamber 330 and abuts against both the plunger 320 and the pump body 310. The elastic force direction of the elastic reset member 340 points towards the plunger 320.

[0079] It is understood that the movement of the plunger 320 toward the pump body 310 along its length, and the movement of the plunger pump away from the pump body 310 along its length, both require a force to propel them. In this embodiment, a force can be automatically applied to the plunger 320 via an electric drive device, or a force can be manually applied to the plunger 320 by the user, thereby causing the plunger 320 to move toward the pump body 310, thus reducing the volume of the compression chamber 330.

[0080] In this embodiment, since the elastic reset member 340 abuts between the plunger member 320 and the pump body 310, and the elastic force of the elastic reset member 340 points towards the plunger member 320, the elastic force of the elastic reset member 340 can drive the plunger member 320 to move away from the pump body 310, thereby increasing the volume of the compression chamber 330.

[0081] Reference Figure 6 , Figure 8 , Figure 10 As shown, in some embodiments, the seal 220 includes a hollow ring 220a and a connecting pipe 220b connected to each other, an inflation chamber 221 is located in the hollow ring 220a, and the connecting pipe 220b connects the inflation chamber 221 and the compression chamber 330.

[0082] With this configuration, gas can circulate between the inflation chamber 221, the connecting pipe 220b, and the compression chamber 330. When the volume of the compression chamber 330 changes, air will enter or exit the compression chamber 330 through the connecting pipe 220b, thereby causing a change in the volume of the inflation chamber 221.

[0083] Reference Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, in one possible implementation, the lid assembly 200 further includes a handle 230 located outside the receiving cavity 110 and rotatably connected to the lid 210 to switch between a first position and a second position.

[0084] The handle 230 is connected to the drive pump assembly 300. When the handle 230 is switched from the second position to the first position, the drive pump assembly 300 is in the first working state. When the handle 230 is switched from the first position to the second position, the drive pump assembly 300 is in the second working state.

[0085] It should be understood that, in order to conform to the user's operating habits, when the handle 230 is in the first position, the handle 230 is folded inside the lid 210, and when the handle 230 is in the second position, the handle 230 is unfolded relative to the lid 210, so that the user can hold the handle 230 to remove the lid assembly 200 from the box body 100, or so that the user can hold the handle 230 to install the lid assembly 200 onto the box body 100.

[0086] In this way, when the user needs to disassemble and install the lid assembly 200, the handle 230 is changed from a folded state to an unfolded state, making it easier for the user to hold the handle 230. Since the handle 230 is connected to the drive pump assembly 300, during this process, the drive pump assembly 300 switches to a second working state, which allows the gas in the inflation chamber 221 to be recovered into the compression chamber 330, thereby causing the seal 220 to be in a contracted state, which helps to reduce the resistance to the installation and disassembly of the lid assembly 200.

[0087] During the installation of the water tank structure onto the machine body, the handle 230 can be changed from an unfolded state to a folded state to reduce the volume of the water tank structure, thereby facilitating its smooth installation onto the machine body. Furthermore, during this process, the handle 230 can drive the pump assembly 300 to switch to its first operating state, allowing gas from the compression chamber 330 to be injected into the inflation chamber 221, causing the seal 220 to expand and thus improving its sealing performance.

[0088] Thus, by switching the position of the handle 230, the working state of the drive pump assembly 300 is controlled, thereby controlling the two states of the seal 220. This control process does not consume electrical energy, thereby reducing the energy consumption of the cleaning equipment.

[0089] Reference Figure 9 , Figure 10 , Figure 11 As shown, in some embodiments, the handle 230 includes a handle portion 231 and a rotating portion 232 connected to each other, the rotating portion 232 being rotatably connected to the lid 210. The rotating portion 232 abuts against the drive pump assembly 300.

[0090] Thus, when the user rotates the handle 231 to switch between a folded state and an unfolded state, the rotating part 232 can be rotated relative to the lid 210, thereby causing different positions of the rotating part 232 to come into contact with the drive pump assembly 300, thereby causing the drive pump assembly 300 to switch between a first working state and a second working state.

[0091] Reference Figure 11 As shown, in one possible implementation, the rotating part 232 has a rotating hole 2321 and a contact surface 2322, and the cover 210 has a rotating shaft that is rotatably connected to the rotating hole 2321. The contact surface 2322 surrounds the outer periphery of the rotating hole 2321 and has a first abutment position 23221 and a second abutment position 23222. The distance T1 from the first abutment position 23221 to the rotating hole 2321 and the distance T2 from the second abutment position 23222 to the rotating hole 2321 satisfy: T1 > T2.

[0092] When the first contact position 23221 contacts the drive pump assembly 300, the drive pump assembly 300 is in a first working state; when the second contact position 23222 contacts the drive pump assembly 300, the drive pump assembly 300 is in a second working state.

[0093] It is understandable that the plunger 320 abuts against the contact surface 2322. When the rotating part 232 rotates, the contact surface 2322 also rotates relative to the plunger 320. When the position of the plunger 320 abutting against the contact surface 2322 changes from the first abutting position 23221 to the second abutting position 23222, since the distance from the second abutting position 23222 to the rotating hole 2321 is smaller than the distance from the first abutting position 23221 to the rotating hole 2321, the elastic force of the elastic reset member 340 is greater than the pressure of the rotating part 232. The resultant force of the two forces drives the plunger 320 to move away from the pump body 310 along its own length direction, thereby causing the pump assembly 300 to be in the second working state, thereby increasing the volume of the compression chamber 330, and thus causing the seal 220 to be in a contracted state.

[0094] When the position of the plunger 320 abutting the contact surface 2322 changes from the second abutting position 23222 to the first abutting position 23221, since the distance from the first abutting position 23221 to the rotating hole 2321 is greater than the distance from the second abutting position 23222 to the rotating hole 2321, the elastic force of the elastic reset member 340 is less than the pressure of the rotating part 232. The resultant force of the two forces drives the plunger 320 to move towards the pump body 310 along its own length direction, thereby causing the pump assembly 300 to be in the first working state, thereby reducing the volume of the compression chamber 330, and causing the seal 220 to be in an expanded state.

[0095] In some embodiments, the second abutment position 23222 and the handle 231 are located on opposite sides of the rotating hole 2321, and the first abutment position 23221 and the handle 231 are located on adjacent sides of the rotating hole 2321.

[0096] In this way, when the user rotates the handle 231, turning the handle 231 about 90° away from the lid 210 will cause the second contact point 23222 to contact the drive pump assembly 300. At this time, the handle 231 is basically in a vertical position, which is convenient for the user to hold. Turning the handle 231 about 90° towards the lid 210 will cause the first contact point 23221 to contact the drive pump assembly 300. The operation is relatively simple and convenient.

[0097] Reference Figure 5 As shown, in some embodiments, for ease of processing and assembly, the lid 210 may include a first cover 210a and a second cover 210b. A handle 230 is rotatably connected to the first cover 210a, and a seal 220 is fixedly connected to the second cover 210b. The second cover 210b is provided with a mounting groove, and the seal 220 is disposed in the mounting groove to suppress excessive expansion of the seal 220 through the mounting groove.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A water tank structure, characterized in that, include: The housing (100) has a receiving cavity (110) and an outlet (111) at one end of the receiving cavity (110). A lid assembly (200) includes a lid (210) and a seal (220), at least a portion of the lid (210) and the seal (220) being disposed in the receiving cavity (110) via the outlet (111), the seal (220) being disposed circumferentially along the outlet (111) and connected to the lid (210), the seal (220) having an inflation cavity (221) with a variable volume.

2. The water tank structure according to claim 1, characterized in that, It also includes a drive pump assembly (300), which is connected to the box cover (210) and communicates with the inflation chamber (221). The drive pump assembly (300) has a first working state and a second working state. When the drive pump assembly (300) is in the first working state, the drive pump assembly (300) injects air into the inflation chamber (221). When the drive pump assembly (300) is in the second working state, the inflation chamber (221) deflates.

3. The water tank structure according to claim 2, characterized in that, The drive pump assembly (300) includes a pump body (310) and a plunger (320), the pump body (310) being connected to the housing cover (210), and at least a portion of the plunger (320) being inserted into the pump body (310). A compression chamber (330) is defined between the pump body (310) and the plunger (320), the plunger (320) being movable relative to the pump body (310) to change the volume of the compression chamber (330), the compression chamber (330) being in communication with the inflation chamber (221).

4. The water tank structure according to claim 3, characterized in that, The drive pump assembly (300) further includes an elastic reset member (340), which is disposed in the compression chamber (330) and abuts against the plunger member (320) and the pump body (310). The elastic force direction of the elastic reset member (340) points towards the plunger member (320).

5. The water tank structure according to claim 3 or 4, characterized in that, The sealing element (220) includes a hollow ring (220a) and a connecting pipe (220b) connected to each other. The inflation chamber (221) is located in the hollow ring (220a), and the connecting pipe (220b) connects the inflation chamber (221) and the compression chamber (330).

6. The water tank structure according to any one of claims 2-4, characterized in that, The lid assembly (200) also includes a handle (230) located outside the receiving cavity (110) and rotatably connected to the lid (210) to switch between a first position and a second position; The handle (230) is connected to the drive pump assembly (300). When the handle (230) is switched from the second position to the first position, the drive pump assembly (300) is in the first working state. When the handle (230) is switched from the first position to the second position, the drive pump assembly (300) is in the second working state.

7. The water tank structure according to claim 6, characterized in that, The handle (230) includes a handle part (231) and a rotating part (232) connected to each other, and the rotating part (232) is rotatably connected to the box lid (210); The rotating part (232) abuts against the drive pump assembly (300).

8. The water tank structure according to claim 7, characterized in that, The rotating part (232) has a rotating hole (2321) and a contact surface (2322), and the box cover (210) has a rotating shaft, which is rotatably connected to the rotating hole (2321); The contact surface (2322) surrounds the outer periphery of the rotating hole (2321). The contact surface (2322) has a first abutment position (23221) and a second abutment position (23222). The distance T1 from the first abutment position (23221) to the rotating hole (2321) and the distance T2 from the second abutment position (23222) to the rotating hole (2321) satisfy: T1 > T2. When the first abutment position (23221) abuts against the drive pump assembly (300), the handle (230) is in the first position; when the second abutment position (23222) abuts against the drive pump assembly (300), the handle (230) is in the second position.

9. The water tank structure according to claim 8, characterized in that, The second abutment position (23222) and the handle (231) are located on opposite sides of the rotating hole (2321), and the first abutment position (23221) and the handle (231) are located on adjacent sides of the rotating hole (2321).

10. A cleaning device, characterized in that, include: The water tank structure as described in any one of claims 1-9; The water tank structure is connected to the fuselage.

Images