Water tank and cleaning device

Abstract

The application discloses a water tank and a cleaning device, wherein the water tank comprises a tank body provided with a liquid storage cavity and a transmission pipeline in communication with the liquid storage cavity, the transmission pipeline has an outlet end located in the liquid storage cavity and is used for conveying fluid to the liquid storage cavity through the outlet end; a blocking piece is located in the liquid storage cavity and is arranged to float in liquid in the liquid storage cavity, the blocking piece can block the outlet end under the buoyancy of liquid in the liquid storage cavity when the transmission pipeline stops conveying fluid to the liquid storage cavity; and the blocking piece can open the outlet end under the fluid pressure of the transmission pipeline when the transmission pipeline conveys fluid to the liquid storage cavity. In this way, liquid in the liquid storage cavity can be effectively prevented from entering the transmission pipeline in reverse and causing liquid leakage, and the transmission pipeline can be prevented from being blocked by mold growth of residual liquid.

Description

Technical Field

[0001] This invention relates to the technical field of water tanks, and particularly to a water tank and cleaning equipment. Background Technology

[0002] Cleaning equipment is usually equipped with a water tank, which has a liquid storage chamber and a transmission pipe connected to the liquid storage chamber. Liquid is added to the liquid storage chamber through the transmission pipe.

[0003] The above-mentioned technical solution has the following defects: On the one hand, when a lot of liquid is stored in the storage chamber, the liquid in the storage chamber is prone to shaking, which makes it easy for the liquid in the storage chamber to flow back into the transmission pipe and cause liquid leakage. On the other hand, when no liquid or very little liquid is stored in the storage chamber, liquid is easy to remain in the transmission pipe, which makes the transmission pipe prone to mold growth and blockage due to the residual liquid. Therefore, it is urgent to improve it. Summary of the Invention

[0004] The main objective of this invention is to provide a water tank that can effectively prevent liquid in the storage chamber from flowing back into the transmission pipeline and causing liquid leakage, and also prevent residual liquid in the transmission pipeline from growing mold and causing blockage.

[0005] To achieve the above objectives, the present invention provides a water tank, the water tank comprising:

[0006] The housing has a liquid storage chamber and a transmission pipe communicating with the liquid storage chamber. The transmission pipe has an outlet end located inside the liquid storage chamber. The transmission pipe is used to transport fluid to the liquid storage chamber through the outlet end.

[0007] A sealing element is located inside the liquid storage chamber and is floating in the liquid inside the liquid storage chamber. When the transmission pipeline stops supplying fluid to the liquid storage chamber, the sealing element can block the outlet end under the buoyancy of the liquid inside the liquid storage chamber.

[0008] When the transmission pipeline delivers fluid to the storage chamber, the sealing element can open the outlet end under the fluid pressure of the transmission pipeline.

[0009] In some embodiments of the present invention, the housing includes a top plate, a bottom plate disposed opposite to the top plate, and a side plate surrounding the top plate and the bottom plate. The top plate, the bottom plate, and the side plate together form the liquid storage cavity. One end of the transmission pipe is connected to the top plate or the side plate, and the other end of the transmission pipe is disposed near the bottom plate. The end of the transmission pipe near the bottom plate is provided with the outlet end.

[0010] In some embodiments of the present invention, the bottom plate, the sealing member, the outlet end and the top plate are arranged sequentially in the height direction of the water tank, and the sealing member is movably disposed between the bottom plate and the outlet end.

[0011] In some embodiments of the present invention, the bottom plate is recessed with a guide groove on the side near the top plate, the guide groove extends in the height direction of the water tank, the sealing member is located in the guide groove, and the outlet end is provided to extend into the guide groove so that the outlet end restricts the sealing member from detaching from the guide groove.

[0012] In some embodiments of the present invention, a protrusion is provided on the side of the bottom plate near the top plate, the protrusion extends in the height direction of the water tank, and the guide groove is disposed on the protrusion.

[0013] In some embodiments of the present invention, the protrusion is further provided with a side opening communicating with the guide groove, and the side opening is located at a position lower than or flush with the lowest preset liquid level of the liquid storage cavity.

[0014] In some embodiments of the present invention, the transmission pipeline is provided with a limiting cover at the outlet end, the limiting cover having a cavity communicating with the outlet end, the cavity containing the sealing member, and the limiting cover allowing the fluid and the liquid to pass through.

[0015] In some embodiments of the present invention, the sealing element is a hollow sphere.

[0016] The present invention also proposes a cleaning device, characterized in that the cleaning device includes a water tank as described above and a machine body, wherein the water tank is installed on the machine body.

[0017] In some embodiments of the present invention, the transmission pipeline further has an inlet end disposed opposite to the outlet end, and the cleaning device further includes a fluid application component, which is mounted on the housing or the machine body and is connected to the inlet end. The fluid application component is used to deliver fluid to the transmission pipeline through the inlet end.

[0018] In some embodiments of the present invention, the fluid application assembly includes an air pump and a pipe, the air pump being connected to the inlet end via the pipe, the air pump being used to deliver gas into the liquid storage chamber, and the housing also having a liquid outlet connected to the liquid storage chamber, the liquid in the liquid storage chamber flowing out through the liquid outlet under the driving action of the air pump; or, the fluid application assembly includes a water pump and a pipe, the water pump being connected to the inlet end via the pipe, the water pump being used to deliver liquid into the liquid storage chamber.

[0019] In some embodiments of the present invention, the inlet end is higher than the highest preset liquid level in the liquid storage chamber.

[0020] In some embodiments of the present invention, the cleaning device further includes a controller electrically connected to the fluid application component, the controller determining the water level in the water tank based on the operating current of the fluid application component.

[0021] In this invention, the sealing element is designed so that when fluid is supplied to the storage chamber, the fluid flows into the transmission pipe, and the sealing element opens its outlet end under the fluid pressure in the transmission pipe, allowing the fluid to flow into the storage chamber from the outlet end. When the supply of fluid to the storage chamber stops, the fluid pressure in the transmission pipe is removed, and the sealing element seals the outlet end under the buoyancy of the liquid in the storage chamber. This design allows the sealing element to float freely in the liquid, actively sealing the outlet end under the buoyancy of the liquid. Furthermore, the sealing effect is more significant when the storage chamber contains more liquid and the liquid level is higher, effectively preventing liquid from flowing back into the transmission pipe and causing leakage. When the storage chamber contains no liquid or very little liquid, the sealing element automatically descends and separates from the outlet end, allowing the storage chamber to connect with the transmission pipe and relieving the internal pressure in both the storage chamber and the transmission pipe. This allows residual liquid in the transmission pipe to flow into the storage chamber, preventing mold growth and blockage in the transmission pipe. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of one embodiment of the sealing component for opening the transmission pipeline in this invention;

[0024] Figure 2 yes Figure 1 A magnified structural diagram of part A in the middle;

[0025] Figure 3 This is a schematic diagram of a structure of an embodiment of the sealing element used in this invention to seal the open end of a transmission pipeline;

[0026] Figure 4 yes Figure 3 A magnified structural diagram of part B in the middle;

[0027] Figure 5This is a schematic diagram of another embodiment of the sealing component in the present invention, which opens the transmission pipeline.

[0028] Figure 6 yes Figure 1 A magnified structural diagram of part A in the middle;

[0029] Figure 7 This is a schematic diagram of the top plate structure in this invention.

[0030] Explanation of icon numbers:

[0031] label name label name 1000 water tank 110g checkpoint 100 Box 110 roof 100a reservoir 120 base plate 100b Transmission pipeline 120b Guide groove 110b Export end 120c bump 120b Entry end 121c Side opening 100b' Limiting cover 130 Side panel 110b' cavity 131 Card Block 100c clearance slot 200 sealing components 100d Depressed area 300 Cover 110d snap-fit ​​protrusion 400 Top cover 100e Mounting cavity 410 Card Block 110e First cavity 2000 Fluid application component 120e Second chamber 2100 pump body 100f Mounting ring 2200 pipeline 100 Separator

[0032] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0035] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0036] Please see Figures 1 to 4 The present invention proposes a water tank 1000, which includes a tank body 100 and a sealing component 200.

[0037] The housing 100 is provided with a liquid storage chamber 100a and a transmission pipe 100b communicating with the liquid storage chamber 100a. The transmission pipe 100b has an outlet end 110b located inside the liquid storage chamber 100a. The transmission pipe 100b is used to transport fluid to the liquid storage chamber 100a through the outlet end 110b.

[0038] Both the housing 100 and the liquid storage chamber 100a can have various shapes. They can be cuboid, circular, or other shapes, and no specific limitation is made here. Specifically, the housing 100 has an opening (not shown) that communicates with the liquid storage chamber 100a, and the transmission pipe 100b also has an inlet end 120b that is opposite to the outlet end 110b and communicates with the opening.

[0039] The transmission pipe 100b is integrally formed with the housing 100. This design ensures both the sealing of the connection between the inlet section and the opening, and enhances the connection strength between the transmission pipe 100b and the housing 100. Furthermore, the connection between the transmission pipe 100b and the housing 100 can be a fixed connection, such as welding or bonding, or a detachable connection, such as threaded connection, snap-fit ​​connection, plug-in connection, or magnetic connection.

[0040] It should be noted that the fluid transported by the transmission pipe 100b to the liquid storage chamber 100a can be gas. In this case, the housing 100 is also provided with a liquid outlet connected to the liquid storage chamber 100a. When the transmission pipe 100b transports gas to the liquid storage chamber 100a, the gas pressure in the liquid storage chamber 100a is restored to balance with the gas pressure in the external environment, so that the liquid in the liquid storage chamber 100a is discharged through the liquid outlet. The fluid transported by the transmission pipe 100b to the liquid storage chamber 100a can also be liquid. In this case, liquid can be transported to the liquid storage chamber 100a through the transmission pipe 100b.

[0041] The number of transmission pipes 100b and the number of outlets 110b can both be one or more (two or more). Furthermore, the transmission pipe 100b and the outlet 110b can be one-to-one or one-to-many, without any specific limitation here. Figure 1 The diagram shows a one-to-one configuration between transmission pipe 100b and outlet 110b.

[0042] The transmission conduit 100b can be of many types. It can be a rigid pipe, a flexible pipe, or a flexible tube, such as a corrugated pipe or a silicone tube. The shape of the transmission conduit 100b also varies. It can be elongated, corrugated, or even a zigzag shape, among other shapes. No specific limitations are made here. Obviously, when there are multiple transmission conduits 100b, the type and shape of each conduit 100b can be the same or different, and no specific limitations are made here.

[0043] The sealing element 200 is located inside the liquid storage chamber 100a and floats in the liquid inside the liquid storage chamber 100a. When the transmission pipeline 100b stops supplying fluid to the liquid storage chamber 100a, the buoyancy force on the sealing element 200 is greater than the weight of the sealing element 200, so that the sealing element 200 can seal the outlet end 110b under the action of the buoyancy of the liquid inside the liquid storage chamber 100a; when the transmission pipeline 100b supplies fluid to the liquid storage chamber 100a, the sealing element 200 can open the outlet end 110b under the fluid pressure of the transmission pipeline 100b.

[0044] It is worth noting that when there are multiple outlet ends 110b, there can be only one sealing element 200. One sealing element 200 can block multiple outlet ends 110b. For example, if multiple outlet ends 110b are located at the same height, the sealing element 200 is plate-shaped and floats upward under the action of the liquid in the liquid storage chamber 100a to block multiple outlet ends 110b. When there are multiple outlet ends 110b, there can also be multiple sealing elements 200, with each sealing element 200 blocking its corresponding outlet end 110b. No specific limitation is made here.

[0045] The sealing component 200 can be made of various materials, including rubber, plastic, foam, wood, and other lightweight materials; no specific limitation is made here. Furthermore, considering that the sealing component 200 is constantly immersed in the liquid within the storage chamber 100a, its outer surface can be coated with a waterproof material. This design can extend the service life of the sealing component 200. Additionally, the outer surface of the sealing component 200 can also be coated with a silver plating layer, which can sterilize the water within the storage chamber 100a.

[0046] It is understandable that the degree of openness of the outlet end 110b is positively correlated with the fluid pressure of the transmission pipeline 100b. The greater the fluid pressure of the transmission pipeline 100b, the greater the force on the sealing component 200. The greater the degree of openness of the outlet end 110b, the higher the efficiency of fluid delivery to the storage chamber 100a. Therefore, in practical applications, the fluid pressure in the transmission pipeline 100b should be increased as much as possible.

[0047] With the above technical solution, when fluid is supplied to the storage chamber 100a, the fluid flows into the transmission pipe 100b. Under the fluid pressure in the transmission pipe 100b, the sealing member 200 opens the outlet end 110b, allowing the fluid to flow into the storage chamber 100a from the outlet end 110b. When the supply of fluid to the storage chamber 100a is stopped, the fluid pressure in the transmission pipe 100b is removed, and the sealing member 200 seals the outlet end 110b under the buoyancy of the liquid in the storage chamber 100a, thus preventing the liquid in the storage chamber 100a from leaking out along the outlet end 110b. With this configuration, since the sealing element 200 floats freely in the liquid, it can actively seal the outlet end 110b under the buoyancy of the liquid. Moreover, when the liquid storage chamber 100a contains more liquid and the liquid level is higher, the sealing effect of the sealing element 200 is more significant, thereby effectively preventing the liquid in the liquid storage chamber 100a from flowing back into the transmission pipe 100b and causing liquid leakage. When the liquid storage chamber 100a does not store liquid or stores very little liquid, the sealing element 200 automatically descends and separates from the outlet end 110b, thereby allowing the liquid storage chamber 100a to connect with the transmission pipe 100b and relieving the internal pressure of the liquid storage chamber 100a and the transmission pipe 100b. This allows the residual liquid in the transmission pipe 100b to flow into the liquid storage chamber 100a, preventing the residual liquid in the transmission pipe 100b from growing mold and causing blockage.

[0048] Please see Figures 1 to 4 Considering that during the use of the water tank 1000, the liquid in the storage chamber 100a will continuously decrease, and the water level in the storage chamber 100a will continuously drop, only the bottom of the storage chamber 100a can maintain liquid for a long time. Therefore, if the sealing member 200 can be located at the bottom of the storage chamber 100a and seal the outlet end 110b under the buoyancy of the liquid in the storage chamber 100a, it will be convenient to seal the outlet end 110b during the use of the water tank 1000. In view of this, in the present invention In some embodiments, the housing 100 includes a top plate 110, a bottom plate 120 disposed opposite to the top plate 110, and a side plate 130 surrounding the top plate 110 and the bottom plate 120. The top plate 110, the bottom plate 120, and the side plate 130 enclose a liquid storage chamber 100a. One end of the transmission pipe 100b is connected to the top plate 110 or the side plate 130, and the other end of the transmission pipe 100b is disposed near the bottom plate 120. The end of the transmission pipe 100b near the bottom plate 120 is provided with an outlet end 110b.

[0049] Specifically, the base plate 120 and the side plate 130 are integrally formed, and the top plate 110 and the side plate 130 are connected by a detachable connection as described in the above embodiment. This arrangement facilitates the formation of the housing 100. Furthermore, the top plate 110 has a circumferentially extending slot (not shown), and the side plate 130 has a circumferentially extending locking block 131. The slot and locking block 131 engage, facilitating the installation and removal of the top plate 110 and the side plate 130. In practical applications, the top plate 110 and the side plate 130 are first connected by the engagement of the slot and locking block 131, and then sealed by applying adhesive. This arrangement ensures the airtightness of the connection between the top plate 110 and the side plate 130, preventing liquid leakage at the connection point.

[0050] Preferably, the end of the transmission pipe 100b furthest from the outlet end 110b is connected to the top plate 110, so that the transmission pipe 100b extends vertically. This arrangement facilitates the delivery of fluid to the liquid storage chamber 100a through the transmission pipe 100b. The transmission pipe 100b may extend vertically in a straight line or it may extend vertically at an angle; no specific limitation is made here.

[0051] Please see Figures 1 to 4 Furthermore, in some embodiments of the present invention, the bottom plate 120, the sealing member 200, the outlet end 110b, and the top plate 110 are arranged sequentially in the height direction of the water tank 1000, and the sealing member 200 is movably disposed between the bottom plate 120 and the outlet end 110b. This arrangement ensures that the sealing member 200 is movably confined to the bottom of the liquid storage chamber 100a, which guarantees that the sealing member 200 can open the outlet end 110b under the fluid pressure of the transmission pipe 100b, while also facilitating the sealing of the outlet end 110b during the use of the water tank 1000.

[0052] Please see Figures 1 to 4 There are many ways in which the aforementioned sealing member 200 is movably disposed between the bottom plate 120 and the outlet end 110b. In some embodiments of the present invention, the bottom plate 120 is recessed with a guide groove 120b on the side near the top plate 110. The guide groove 120b extends in the height direction of the water tank 1000. The sealing member 200 is located in the guide groove 120b, and the outlet end 110b is disposed inside the guide groove 120b so that the outlet end 110b restricts the sealing member 200 from leaving the guide groove 120b.

[0053] Specifically, the outer peripheral wall of the outlet end 110b of the transmission pipe 100b and the inner peripheral wall of the guide groove 120b are spaced apart. This arrangement facilitates the flow of fluid into the liquid storage chamber 100a by passing through the transmission pipe 100b and the guide groove 120b in sequence.

[0054] Through the above technical solution, by means of the cooperation between the guide groove 120b and the outlet end 110b, the sealing component 200 can be movably set between the bottom plate 120 and the outlet end 110b, and the sealing component 200 can be guided by the guide groove 120b, so that the sealing component 200 moves upward along the guide groove 120b under the buoyancy of the liquid in the liquid storage chamber 100a, and seals the outlet end 110b.

[0055] In other embodiments, the outlet end 110b of the transmission pipe 100b may also be located above the opening of the guide groove 120b. In this case, the length of the sealing member 200 in the height direction of the housing 100 is greater than the vertical distance between the opening of the guide groove 120b and the outlet end 110b of the transmission pipe 100b, and the length of the sealing member 200 in the height direction of the housing 100 is also less than the vertical distance between the bottom of the guide groove 120b and the outlet end 110b of the transmission pipe 100b. With this arrangement, the sealing member 200 can also be confined within the guide groove 120b. In addition, the two ends of the sealing element 200 in the height direction of the housing 100 can also be in contact with the bottom of the outlet end 110b and the guide groove 120b. In this case, the sealing element 200 is made of elastic materials such as plastic and rubber. Under the action of fluid pressure in the transmission pipeline 100b, the sealing element 200 undergoes elastic deformation, which creates a gap between the sealing element 200 and the outlet end 110b, opening the outlet end 110b and allowing fluid to be delivered into the liquid storage chamber 100a. When the fluid pressure in the transmission pipeline 100b is removed, the sealing element 200 returns to its initial state under its own resilience and seals the outlet end 110b.

[0056] Please see Figures 1 to 4 It is understandable that the guide groove 120b can be formed by recessing it directly on the side of the base plate 120 facing the top plate 110. However, the thickness of the base plate 120 is relatively small, while the depth of the guide groove 120b is much greater than the thickness of the base plate 120. If the guide groove 120b is formed by recessing it directly on the base plate 120, a protruding area needs to be formed on the side of the base plate 120 facing away from the top plate 110 at the position corresponding to the guide groove 120b, or a thicker base plate 120 can be used. Both of the above methods are... This would increase the size of the tank 100, making it inconvenient to directly recess the guide groove 120b on the side of the bottom plate 120 facing the top plate 110. Therefore, to facilitate the formation of the guide groove 120b, in some embodiments of the present invention, a protrusion 120c is provided on the side of the bottom plate 120 near the top plate 110. The protrusion 120c extends in the height direction of the water tank 1000, and the guide groove 120b is located on the side of the protrusion 120c facing away from the bottom plate 120. This arrangement, thanks to the protrusion 120c, facilitates the formation of the guide groove 120b.

[0057] Specifically, the protrusion 120c is integrally formed with the base plate 120, which enhances the connection strength between the protrusion 120c and the base plate 120. Furthermore, the protrusion 120c and the base plate 120 can also be connected in a fixed or detachable manner as described in the above embodiments.

[0058] Please see Figures 1 to 4 Considering that the storage chamber 100a has a minimum preset liquid level, if the sealing member 200 can seal the outlet end 110b under the buoyancy of the liquid at the minimum preset liquid level of the storage chamber 100a, the sealing member 200 can always seal the outlet end 110b during the use of the water tank 1000. Therefore, in order to ensure that the sealing member 200 can always seal the outlet end 110b during the use of the water tank 1000, in some embodiments of the present invention, the protrusion 120c is also provided with a side opening 121c that connects to the guide groove 120b. The side opening 121c is located at a position lower than or level with the minimum preset liquid level of the storage chamber 100a. This configuration allows liquid below the lowest preset liquid level of the storage chamber 100a to flow into the guide groove 120b through the side opening 121c, so that the sealing member 200 can always be subjected to the buoyancy of the liquid at the lowest preset liquid level of the storage chamber 100a and seal the outlet end 110b during the use of the water tank 1000.

[0059] The number of side openings 121c can be one or more, and the shape of the side openings 121c can be square, triangle, circle, ellipse or other shapes, without specific limitations.

[0060] It should be noted that the minimum preset liquid level is the lowest liquid level in the storage chamber 100a. When the liquid level in the storage chamber 100a drops to the minimum preset liquid level, the liquid below the minimum preset liquid level will no longer be discharged, so that the sealing member 200 can always be subjected to the buoyancy of the liquid at the minimum preset liquid level in the storage chamber 100a and seal the outlet end 110b. Furthermore, the width of the side opening 121c is smaller than the width of the sealing member 200. This design can prevent the sealing member 200 from detaching from the guide groove 120b.

[0061] Please see Figure 5 and Figure 6 There are many ways in which the aforementioned sealing element 200 is movably disposed between the base plate 120 and the outlet end 110b. In some other embodiments of the present invention, the transmission pipe 100b is provided with a limiting cover 100b' at the outlet end 110b. The limiting cover 100b' has a cavity 110b' that communicates with the outlet end 110b. The cavity 110b' contains the sealing element 200. The limiting cover 100b' can be filled with fluid and liquid.

[0062] Through the above technical solution, by setting the limiting cover 100b' and the cavity 110b', the sealing member 200 can be movably disposed between the bottom plate 120 and the outlet end 110b, and the cavity 110b' can guide the sealing member 200, so that the sealing member 200 moves upward along the cavity 110b' under the buoyancy of the liquid in the liquid storage chamber 100a, sealing the outlet end 110b. The limiting cover 100b' has the same effect as the guide groove 120b in the above embodiment.

[0063] Please see Figures 1 to 4 Considering that the sealing element 200 can be configured as a solid structure or a hollow structure, but compared with the sealing element 200 being configured as a solid structure, the sealing element 200 being configured as a hollow structure can reduce the weight of the sealing element 200, making it easier for the sealing element 200 to float upward under the buoyancy of the liquid in the liquid storage chamber 100a, and can enhance the sealing strength of the sealing element 200 when sealing the outlet end 110b. Therefore, in some embodiments of the present invention, the sealing element 200 is a hollow sphere.

[0064] Please see Figures 1 to 4 Considering that when the sealing element 200 seals the outlet end 110b, the sealing strength is relatively low due to the direct contact between the sealing element 200 and the outlet end 110b, the sealing strength between the sealing element 200 and the outlet end 110b is relatively low. Therefore, in order to enhance the sealing strength between the sealing element 200 and the outlet end 110b when sealing the outlet end 110b, in some embodiments of the present invention, the inner diameter of the outlet end 110b gradually widens from the side closer to the air inlet end to the side farther from the air inlet end, and the sealing element 200 cooperates with the inner peripheral wall of the outlet end 110b when sealing the outlet end 110b. This arrangement makes the outlet end 110b funnel-shaped, and combined with the spherical arrangement of the sealing element 200, the sealing strength between the sealing element 200 and the outlet end 110b is enhanced when sealing the outlet end 110b.

[0065] The outer diameter of the sealing element 200 is smaller than the diameter of the guide groove 120b. This design allows the sealing element 200 to float upwards under the action of the liquid in the liquid storage chamber 100a. The inclination angle of the inner peripheral wall of the outlet end 110b can be other angle values ​​such as 30 degrees, 45 degrees, and 60 degrees, and is not specifically limited here.

[0066] It should be noted that when the sealing member 200 seals the outlet end 110b, the sealing member 200 may be partially inserted into the outlet end 110b and abut against the inner peripheral wall of the outlet end 110b, or the sealing member 200 may be fully inserted into the outlet end 110b and abut against the inner peripheral wall of the outlet end 110b. No specific limitation is made here. Figure 1The diagram shows the sealing element 200 partially extending into the outlet end 110b and abutting against the inner peripheral wall of the outlet end 110b.

[0067] Please see Figure 1 and Figure 2 The present invention also proposes a cleaning device (not shown), which includes a water tank 1000 as described above and a machine body (not shown), wherein the water tank 1000 is installed on the machine body.

[0068] By way of example and not limitation, the cleaning equipment may include at least one of the following: cleaning robot, sweeping robot, sweeping and mopping robot, floor cleaning robot, push cleaning machine, ride-on cleaning machine, handheld cleaning device, cleaning base station (e.g., robot cleaning base station, mop washing base station, cleaning and dust collection integrated unit).

[0069] The specific structure of the water tank 1000 is as described in the above embodiments. Since the cleaning equipment adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0070] Please see Figures 1 to 4 Considering that fluid needs to be applied to the transmission pipeline 100b through the fluid application component 2000 in practical applications, the fluid application component 2000 can be a separately set standard component or it can be set on the housing 100. However, compared with the fluid application component 2000 being a separately set standard component, the fluid application component 2000 being set on the housing 100 allows for direct activation of the fluid application component 2000 when fluid needs to be applied to the transmission pipeline 100b, thus facilitating the application of fluid to the transmission pipeline 100b. Therefore, in some embodiments of the present invention, the transmission pipeline 100b also has an inlet end 120b disposed opposite to the outlet end 110b. The cleaning equipment also includes the fluid application component 2000, which is installed on the housing 100 or the machine body. The fluid application component 2000 is connected to the inlet end 120b and is used to deliver fluid to the transmission pipeline 100b through the inlet end 120b. Figure 2 The diagram shows the fluid application assembly 2000 mounted on the housing 100.

[0071] Preferably, the inlet end is higher than the highest preset liquid level in the storage chamber, and the inlet end 120b is higher than the highest preset liquid level in the storage chamber 100a. This arrangement facilitates the delivery of fluid to the storage chamber 100a via the transmission pipe 100b while effectively preventing liquid leakage from the storage chamber 100a through the inlet end 120b. The connection method between the fluid application component 2000 and the housing 100 is set as described in the above embodiments, either as a fixed connection or a detachable connection, and will not be elaborated further here.

[0072] It is understood that the fluid application component 2000 can be used to apply gas or to apply liquid.

[0073] When the fluid application component 2000 is used to apply gas, in some embodiments of the present invention, the fluid application component 2000 includes a pump body 2100 and a pipe 2200. The pump body 2100 is an air pump, which is connected to the inlet end 120b through the pipe 2200. The air pump is used to deliver gas into the liquid storage chamber 100a. The housing 100 is also provided with a liquid outlet connected to the liquid storage chamber 100a. The liquid in the liquid storage chamber 100a flows out through the liquid outlet under the driving action of the air pump.

[0074] With the above technical solution, when gas is supplied to the storage chamber 100a, the air pump is started, and the air pump supplies gas to the transmission pipeline 100b through the pipeline 2200. Under the gas pressure in the transmission pipeline 100b, the sealing component 200 opens the outlet end 110b, so that the gas can flow into the storage chamber 100a from the outlet end 110b at the same time, so that the gas pressure in the storage chamber 100a is restored to balance with the gas pressure in the external environment, and the liquid in the storage chamber 100a flows out through the outlet. When the supply of fluid to the storage chamber 100a is stopped, the air pump is turned off, the gas pressure in the transmission pipeline 100b is removed, and the sealing component 200 seals the outlet end 110b under the buoyancy of the liquid in the storage chamber 100a.

[0075] When the fluid application component 2000 is used to apply liquid, in some embodiments of the present invention, the fluid application component 2000 includes a pump body 2100 and a pipe 2200. The pump body 2100 is a water pump, and the water pump is connected to the inlet end 120b through the pipe 2200. The water pump is used to deliver liquid into the liquid storage chamber 100a.

[0076] With the above technical solution, when liquid is being delivered into the storage chamber 100a, the water pump is started, and the water pump delivers liquid into the transmission pipe 100b through the pipe 2200. Under the liquid pressure in the transmission pipe 100b, the sealing component 200 opens the outlet end 110b, allowing the liquid to flow into the storage chamber 100a from the outlet end 110b. When the delivery of fluid into the storage chamber 100a is stopped, the water pump is turned off, the liquid pressure in the transmission pipe 100b is removed, and the sealing component 200 seals the outlet end 110b under the buoyancy of the liquid in the storage chamber 100a.

[0077] In some embodiments of the present invention, the cleaning device further includes a controller electrically connected to the fluid application component 2000, and the controller determines the water level in the water tank 1000 based on the operating current of the fluid application component 2000. This configuration facilitates the determination of the water level in the water tank 1000.

[0078] The controller determines the water level in the water tank 1000 based on the operating current of the fluid application component 2000 as follows: When the water level in the water tank 1000 is high or it is full, the buoyancy force on the sealing component 200 is large, and the fluid pressure required to open the outlet end 110b is high, resulting in a larger operating current for the fluid application component 2000. When there is no water or a small amount of water in the water tank 1000, the buoyancy force on the sealing component 200 is small, and the fluid pressure required to open the outlet end is low, resulting in a smaller operating current for the fluid application component 2000.

[0079] It is worth mentioning that the fluid application component 2000 is equipped with multiple levels arranged from low to high. Each level corresponds to a different working current. The higher the level, the greater the working current of the fluid application component 200.

[0080] Specifically, if the operating current required by the fluid application component 2000 is greater than or equal to a first preset value, it can be determined that the water level in the water tank 1000 exceeds the first preset level. If the operating current required by the fluid application component 2000 is less than or equal to a second preset value, it can be determined that the water level in the water tank 1000 is lower than the second preset level.

[0081] The controller includes a current detection module and a control module electrically connected to the current detection module. The current detection module is used to detect the operating current value of the fluid application component 2000. When the operating current value detected by the current detection module is greater than or equal to a first preset value, the control module sends a signal that the water level in the water tank 1000 exceeds the first preset liquid level. When the operating current value detected by the current detection module is less than or equal to a second preset value, the control module sends a signal that the water level in the water tank 1000 is lower than the second preset liquid level.

[0082] The current detection module can be a current sensor, ammeter, multimeter, or other components capable of detecting circuit size. The control module consists of a comparator circuit and a control circuit; the control module can be a 555 timer chip, etc.

[0083] Please see Figures 1 to 4 To facilitate communication between the pipe 2200 and the inlet end 120b, in some embodiments of the present invention, the outer surface of the housing 100 adjacent to the inlet end 120b is provided with a clearance groove 100c surrounding the inlet end 120b, and the end of the pipe 2200 away from the pump body 2100 is inserted into the inner peripheral wall of the clearance groove 100c. This arrangement facilitates communication between the pipe 2200 and the inlet end 120b.

[0084] Specifically, when the pump body 2100 is an air pump, the inner peripheral wall of the pipe 2200 and the outer peripheral wall of the clearance groove 100c are fitted with a clearance. With this arrangement, after the sealing part 200 is blown away from the inlet end 120b by the air pump, it is convenient for air from the external environment to enter the liquid storage chamber 100a, so that the air pressure in the liquid storage chamber 100a is balanced with the air pressure of the external environment, so that the water in the liquid storage chamber 100a can be discharged from the outlet.

[0085] Please see Figures 1 to 4 Considering that directly mounting the pump body 2100 to the outer surface of the tank 100 would result in a large size for the water tank 1000, in order to reduce the size of the water tank 1000, in some embodiments of the present invention, the outer surface of the tank 100 is provided with a recessed region 100d, which is located within the liquid storage chamber 100a, and the pump body 2100 is mounted within the recessed region 100d. This configuration, by means of the recessed region 100d, allows for a reduction in the size of the water tank 1000.

[0086] Specifically, the recessed area 100d has two opposite sides with snap-fit ​​protrusions 110d, and the pump body 2100 is clamped between the two snap-fit ​​protrusions 110d. This arrangement facilitates the installation and disassembly of the pump body 2100.

[0087] Please see Figure 2 , Figure 4 as well as Figure 7Considering that if the fluid application component 2000 is directly installed on the outside of the housing 100, moisture from the external environment can easily diffuse to the fluid application component 2000, potentially causing damage. Therefore, in some embodiments of the present invention, to prevent damage to the fluid application component 2000 due to moisture from the external environment, the outer surface of the housing 100 is provided with a mounting cavity 100e, and the inlet end 120b is located on the bottom wall of the mounting cavity 100e. The fluid application component 2000 is installed inside the mounting cavity 100e. The water tank 1000 also includes a cover 300, which seals the open end of the mounting cavity 100e. This arrangement, by sealing the open end of the mounting cavity 100e with the cover 300, isolates the mounting cavity 100e from the external environment, preventing moisture from the external environment from diffusing into the mounting cavity 100e, thereby preventing damage to the fluid application component 2000 due to moisture from the external environment.

[0088] Specifically, the outer surface of the housing 100 is provided with a mounting ring 100f, which, together with the housing 100, forms a mounting cavity 100e. The cover 300 is provided with a mounting groove (not shown) extending circumferentially therefrom, which mates with the side of the mounting ring 100f away from the housing 100. This arrangement ensures both the sealing strength between the cover 300 and the mounting ring 100f and facilitates the installation and removal of the cover 300. Alternatively, the mounting cavity 100e can be formed by directly recessing it into the outer surface of the housing 100.

[0089] Furthermore, the water tank 1000 also includes a top cover 400, which covers the top of the tank body 100 and the cover 300. The top of the tank body 100 is provided with a snap-fit ​​groove (not shown) extending circumferentially therefrom, and the top cover 400 is provided with a snap-fit ​​block 410 extending circumferentially therefrom, which engages with the snap-fit ​​groove. This arrangement facilitates the installation and removal of the top cover 400.

[0090] Please see Figure 2 , Figure 4 as well as Figure 7 Considering that when the inlet end 120b is opened, the water vapor in the liquid storage chamber 100a can easily diffuse from the inlet end 120b to the pump body 2100 in the installation chamber 100e, and the pump body 2100 is easily damaged by the water vapor, in order to prevent the pump body 2100 from being damaged by the water vapor in the liquid storage chamber 100a, in some embodiments of the present invention, the bottom wall of the installation chamber 100e is provided with a partition 100g, which divides the installation chamber 100e into a first chamber 110e and a second chamber 120e that are independent of each other. The side of the partition 100g facing away from the housing 100 is provided with a bayonet 110g that cooperates with the pipe 2200; the inlet end 120b is located on the bottom wall of the first chamber 110e, and the pump body 2100 is installed in the second chamber 120e.

[0091] Specifically, the aforementioned recessed area 100d is located within the second cavity 120e. The pipe 2200 is a flexible hose, which allows the pipe 2200 to elastically abut against the inner wall of the bayonet 110g. This arrangement enhances the sealing strength between the pipe 2200 and the bayonet 110g.

[0092] Through the above technical solution, by setting the separator 100g, the mounting cavity 100e is divided into a first cavity 110e and a second cavity 120e. The inlet end 120b is located on the bottom wall of the first cavity 110e. After the water vapor in the liquid storage cavity 100a diffuses from the inlet end 120b into the first cavity 110e, the separator 100g can prevent the water vapor in the first cavity 110e from diffusing into the second cavity 120e, thereby preventing the fluid application component 2000 from being damaged by the water vapor in the liquid storage cavity 100a.

[0093] It should be noted that when the pump body 2100 is set as an air pump, the cover 300 is also provided with a vent (not shown) connecting the first chamber 110e with the external environment. The cover 300 is also equipped with a waterproof and breathable membrane (not shown) to seal the vent. This setting can prevent water vapor in the external environment from spreading to the air pump, and after the air pump blows the sealing part 200 away from the inlet end 120b, it is convenient for the outside air to enter the liquid storage chamber 100a, so that the air pressure in the liquid storage chamber 100a is balanced with the air pressure in the external environment, so that the water in the liquid storage chamber 100a can be discharged from the outlet.

[0094] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A water tank characterized by, The water tank comprises: a tank body provided with a liquid storage cavity and a transmission pipeline in communication with the liquid storage cavity, the transmission pipeline having an outlet end located in the liquid storage cavity, the transmission pipeline being used to deliver fluid to the liquid storage cavity through the outlet end; a blocking member located in the liquid storage cavity, the blocking member being arranged to float in the liquid in the liquid storage cavity, the blocking member being capable of blocking the outlet end under the buoyancy of the liquid in the liquid storage cavity when the transmission pipeline stops delivering fluid to the liquid storage cavity; the blocking member being capable of opening the outlet end under the fluid pressure of the transmission pipeline when the transmission pipeline delivers fluid to the liquid storage cavity; the tank body comprising a top plate and a bottom plate arranged opposite to the top plate, one end of the transmission pipeline being arranged close to the bottom plate, the bottom plate being recessed with a guide groove on the side close to the top plate, the guide groove extending in the height direction of the water tank, the blocking member being located in the guide groove, the bottom plate being protruded with a protrusion on the side close to the top plate, the protrusion extending in the height direction of the water tank, the guide groove being arranged on the protrusion, the protrusion being further provided with a side opening in communication with the guide groove, the side opening being located lower than or flush with the lowest preset liquid level of the liquid storage cavity.

2. The water tank of claim 1, wherein the tank body further comprising a side plate surrounding the top plate and the bottom plate, the top plate, the bottom plate and the side plate enclosing the liquid storage cavity, the other end of the transmission pipeline being connected to the top plate or the side plate, the transmission pipeline being provided with the outlet end at the end close to the bottom plate.

3. The water tank of claim 2, wherein the bottom plate, the blocking member, the outlet end and the top plate being arranged in sequence in the height direction of the water tank, the blocking member being movably arranged between the bottom plate and the outlet end.

4. The water tank of claim 3, wherein the outlet end being arranged to extend into the guide groove so as to limit the blocking member from leaving the guide groove.

5. The water tank according to any one of claims 1 to 4, characterized in that the blocking member being a hollow sphere.

6. A water tank characterized by The water tank comprises: a tank body provided with a liquid storage cavity and a transmission pipeline in communication with the liquid storage cavity, the transmission pipeline having an outlet end located in the liquid storage cavity, the transmission pipeline being used to deliver fluid to the liquid storage cavity through the outlet end; a blocking member located in the liquid storage cavity, the blocking member being arranged to float in the liquid in the liquid storage cavity, the blocking member being capable of blocking the outlet end under the buoyancy of the liquid in the liquid storage cavity when the transmission pipeline stops delivering fluid to the liquid storage cavity; the blocking member being capable of opening the outlet end under the fluid pressure of the transmission pipeline when the transmission pipeline delivers fluid to the liquid storage cavity; the tank body comprising a top plate and a bottom plate arranged opposite to the top plate, one end of the transmission pipeline being arranged close to the bottom plate, the transmission pipeline being provided with a limiting cover at the outlet end, the limiting cover being provided with a cavity in communication with the outlet end, the cavity accommodating the blocking member, the limiting cover being capable of being penetrated by the fluid and the liquid.

7. The water tank of claim 6, wherein the blocking member being a hollow sphere.

8. A cleaning apparatus, characterized by The cleaning device comprises the water tank as claimed in any one of claims 1 to 7 and a machine body, and the water tank is mounted on the machine body.

9. The cleaning apparatus of claim 8, wherein, The conveying pipe further has an inlet end opposite to the outlet end, and the cleaning device further comprises a fluid applying assembly mounted on the tank body or the machine body, the fluid applying assembly being in communication with the inlet end, and the fluid applying assembly is used to deliver fluid to the conveying pipe through the inlet end.

10. The cleaning apparatus of claim 9, wherein, The fluid applying assembly comprises an air pump and a pipe, the air pump being in communication with the inlet end through the pipe, and the air pump is used to deliver air into the liquid storage cavity, and the tank body is further provided with a liquid outlet in communication with the liquid storage cavity, and the liquid in the liquid storage cavity flows out through the liquid outlet under the driving action of the air pump; or the fluid applying assembly comprises a water pump and a pipe, the water pump being in communication with the inlet end through the pipe, and the water pump is used to deliver liquid into the liquid storage cavity.

11. The cleaning apparatus of claim 9, wherein, The inlet end is higher than the highest preset liquid level in the liquid storage cavity.

12. The cleaning apparatus of claim 9, wherein, The cleaning device further comprises a controller electrically connected to the fluid applying assembly, and the controller judges the water level in the water tank according to the working current of the fluid applying assembly.

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