Water tank, water storage device and cleaning equipment

Abstract

The utility model discloses a water tank, a water storage device and cleaning equipment, and belongs to the technical field of cleaning equipment. An inner cavity of the water tank comprises a water containing cavity and a detection cavity, a water inlet hole of the water tank is formed in the water containing cavity, an air hole of the water tank is formed in the detection cavity, and the detection cavity is communicated with the water containing cavity through a first channel on the upper side. The water storage device comprises a water tank and a water detection module, the water detection module is arranged on a tank side plate of the water tank, and the water detection module is used for detecting whether water exists in the detection cavity or whether the water level meets the preset requirement. The cleaning equipment comprises the water storage device. Water enters the detection cavity after the water containing cavity is full, the water inlet condition of the detection cavity is detected through the water detection device, the opportunity of stopping water inlet of the water tank can be more accurately controlled, the water fullness detection precision and rationality are improved, the utilization rate of the internal space of the water tank is improved, and the water detection module does not need to be arranged at the top of the water tank.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a water tank, a water storage device and cleaning equipment. Background Art

[0002] Cleaning equipment is increasingly being used. Its automated and intelligent features significantly improve the efficiency and convenience of cleaning tasks. Many cleaning devices are equipped with water tanks, which store either fresh water or wastewater. For example, during mopping operations, the machine pumps water from the tank into the mop, roller, or other cleaning components, which then wet the components and clean the floor.

[0003] Cleaning equipment is generally equipped with a water level detector to detect the liquid level in the water tank. When the liquid level in the water tank reaches a preset height, the cleaning equipment indicates that the water tank is full. For example, when refilling the clean water tank, refilling is stopped when the liquid level reaches a preset height.

[0004] However, in the related art, due to various restrictions, the water level detector can only be set in the middle and upper part of the water tank. When the liquid level in the water tank reaches the middle and upper part of the inner cavity of the water tank, the water level detector detects a signal that the water level has reached a preset height. At this time, the cleaning equipment displays that the water tank is full of water. However, at this time, the water level in the water tank is actually still a certain distance away from the top of the water tank, and the maximum utilization of the water tank space is not achieved. Utility Model Content

[0005] The purpose of the embodiments of the present utility model is to provide a water tank, a water storage device and a cleaning device, which can improve the accuracy of detecting whether the water tank is full and improve the utilization rate of the internal space of the water tank.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A water tank, comprising a tank top plate, a tank side plate and a tank bottom plate, wherein the tank top plate, the tank side plate and the tank bottom plate enclose an inner cavity;

[0008] The inner cavity includes a water filling cavity and a detection cavity; the water tank is provided with a water inlet hole, and the hole on one side of the water inlet hole is located on the inner side of the water filling cavity; the water filling cavity is connected with the detection cavity through a first channel, and the first channel is arranged close to the top plate of the tank; the water tank is provided with an air hole, and the hole on one side of the air hole is located on the inner side of the detection cavity, and the detection cavity is connected with the outside of the water tank through the air hole.

[0009] Optionally, a second channel is provided between the detection cavity and the water filling cavity, and the second channel is located on a side of the box bottom plate close to the inner cavity;

[0010] The water tank is provided with a water outlet hole, and the orifice of the water outlet hole is located in the water filling cavity; the water tank has a drainage state, and when the water tank is in the drainage state, the detection cavity is connected with the water filling cavity through the second channel.

[0011] Optionally, the inner cavity further includes a flow cavity, which is located between the water filling cavity and the detection cavity; the water filling cavity is connected to the flow cavity through the first channel, and the flow cavity is connected to the detection cavity through the second channel.

[0012] Optionally, the water tank further comprises a first partition, which is disposed in the inner cavity and connected to a cavity wall of the inner cavity;

[0013] The first partition is located between the water filling cavity and the detection cavity; a first opening is provided on a side of the first partition close to the box top plate, and the first channel is located between the edge of the first opening and the box top plate.

[0014] Optionally, the water tank includes a first partition and a second partition, and the first partition and the second partition are both arranged in the inner cavity and connected to the cavity wall of the inner cavity;

[0015] The first partition is located between the water-filling cavity and the flow-through cavity, and the second partition is located between the flow-through cavity and the detection cavity;

[0016] A first opening is provided on the side of the first partition close to the box top plate, and the first channel is located between the edge of the first opening and the box top plate; a second opening is provided on the side of the second partition close to the box bottom plate, and the channel is located between the edge of the second opening and the box bottom plate.

[0017] Optionally, the box side plate includes a straight plate portion and a curved plate portion, and two ends of the curved plate portion are connected to two ends of the straight plate portion; the detection cavity is located between the straight plate portion and the curved plate portion.

[0018] Optionally, the air hole is arranged on the box top plate; the box top plate is provided with at least two air holes, and at least two one-way valves are respectively provided on the two air holes, one of the one-way valves is an air outlet one-way valve, and the other one-way valve is an air inlet one-way valve.

[0019] A water storage device includes the water tank as described above, and also includes a water detection module; the water detection module is fixed to the outside of the tank side plate and located next to the detection cavity, or the water detection module is arranged in the detection cavity.

[0020] Optionally, the water detection module is one of a photoelectric liquid level sensor, a float type liquid level sensor, a resistive liquid level sensor, a capacitive liquid level sensor, and an ultrasonic liquid level sensor.

[0021] A cleaning machine comprises the water storage device as described in the above solution, and also comprises a water pump, wherein the water pump is connected to the water inlet of the water tank through a connecting pipe.

[0022] The beneficial effects of the present invention are as follows: the interior of the water tank is divided into a water filling chamber and a detection chamber, and the water detection module is arranged next to the detection chamber. Since the air hole is arranged at the detection chamber, when external water enters the water tank, under the action of water pressure, the water will press the air in the water filling chamber to the detection chamber through the first channel, and the water first fills the water filling chamber and then enters the detection chamber through the first channel. When the water detection module detects that there is water in the detection chamber or the water level reaches a preset height, the water detection module stops filling water into the water tank when it detects a water full signal. At this time, the water filling chamber is in a water-full state.

[0023] By adopting the water storage device and cleaning equipment of the water tank, the water detection module does not need to be set on the top of the water tank, and the timing of stopping water intake in the water tank can be controlled more accurately, thereby improving the accuracy and rationality of water full detection and improving the utilization rate of the internal space of the water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the assembly between the housing and the water tank of the cleaning device according to an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the water tank according to an embodiment of the present utility model;

[0027] Figure 3 for Figure 2 A magnified view of part A in FIG;

[0028] Figure 4 This is a cross-sectional view of the assembled housing and water tank of the cleaning device according to an embodiment of the present utility model;

[0029] Figure 5 for Figure 4 A magnified view of part B in FIG;

[0030] Figure 6 This is one of the schematic diagrams of the internal structure of the water tank according to the embodiment of the present utility model;

[0031] Figure 7 This is the second schematic diagram of the internal structure of the water tank according to the embodiment of the present utility model;

[0032] Figure 8This is the third schematic diagram of the internal structure of the water tank according to the embodiment of the present utility model;

[0033] Figure 9 This is another cross-sectional view of the water tank according to an embodiment of the present utility model;

[0034] Figure 10 for Figure 9 Schematic diagram of water flow direction of the water tank in the water filling state shown in FIG;

[0035] Figure 11 for Figure 9 Schematic diagram of water flow direction of the water tank in the draining state shown in FIG;

[0036] Figure 12 This is a cross-sectional view of a water tank according to another embodiment of the present invention;

[0037] Figure 13 for Figure 12 Schematic diagram of water flow direction of the water tank in the water filling state shown in FIG;

[0038] Figure 14 for Figure 12 Schematic diagram of water flow direction of the water tank in the draining state shown in FIG;

[0039] Figures 15 to 17 This is a schematic diagram of other layouts of the water filling chamber, detection chamber, and flow chamber in the water tank of the utility model.

[0040] In the figure: 10, water tank; 101, water filling chamber; 102, detection chamber; 103, flow chamber; 104, first channel; 105, second channel; 106, air hole; 11, box top plate; 1101, chamber top wall; 12, box side plate; 1201, chamber side wall; 121, first plate portion; 122, second plate portion; 13, box bottom plate; 1301, chamber bottom wall; 20, first partition plate; 21, first opening; 30, second partition plate; 31, second opening; 40, water detection module; 50, one-way valve; 90, casing. DETAILED DESCRIPTION

[0041] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0042] In the description of this utility model, unless otherwise expressly specified or limited, the terms "connected" and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0043] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0044] In cleaning equipment, performing water fullness detection on the clean water tank or the sewage tank is conducive to more intelligent control of the cleaning equipment.

[0045] For example, for cleaning equipment with a mopping function, such as a mopping machine, after returning to the base station, if there is a lack of water in the water tank, the water tank needs to be automatically refilled. In the related art, a water level detector is generally configured in the clean water tank. The water level detector detects whether the liquid level in the clean water tank has reached a preset height. If it reaches the preset height, it is determined that the water tank is full of water. When the cleaning equipment returns to the base station, if it is detected that the liquid level in the clean water tank has not reached the preset height, water is automatically added to the clean water tank through a water pump or other means until the water level reaches the preset height, and then the water replenishment is stopped. In other words, the water level detector set in the clean water tank is used to determine whether the clean water tank needs to be refilled with water, and whether it is full of water and stops the water replenishment action.

[0046] In addition, for sewage tanks, water level detectors can also be used to detect and determine whether the water in the sewage tank is full and whether drainage is required. Therefore, whether it is for clean water tanks or sewage tanks, water level detection is conducive to the realization of intelligent cleaning equipment.

[0047] However, due to other requirements and structural limitations, water level detectors in related technologies can only detect whether the liquid level in the water tank has reached the middle and upper part of the water tank, for example, they can only detect whether the water level has reached 50% to 75% of the height of the water tank. For example, to accommodate the need for manual access to the clean water tank from the top and to maximize the space of the clean water tank, many cleaning equipment have the top of the clean water tank nearly flush with the top of the equipment body. Due to appearance requirements and waterproof requirements, it is necessary to avoid placing the detection module on the top of the clean water tank, so the detection module can only be placed in the middle and upper part of the outer wall of the water tank. If the detection module used is an infrared detection module, the detection module includes a module housing, a circuit board arranged inside the module housing, and a detection element (infrared transmitter, infrared receiver) arranged on the circuit board. Since the detection module cannot be higher than the top surface of the water tank, and the center of the detection element will be a certain distance away from the upper edge of the housing, it will be difficult for the center of the detection element to be flush with the top wall of the water tank cavity. As a result, when the water level reaches a certain distance from the top wall of the cavity in the upper half of the water tank, the detection module senses that the water level has reached a preset height. At this time, the system determines that the water tank is full of water, resulting in a low accuracy of the water full detection.

[0048] This will result in stopping water replenishment when the water level in the clean water tank has not reached the top wall of the cavity, or prompting to drain or empty sewage when the water level in the sewage tank has not reached the top wall of the cavity, and the internal space of the water tank cannot be maximized.

[0049] In order to improve the utilization rate of the internal space of the water tank, the present application provides a water tank and a cleaning device using the water tank, which can solve the problem in the related technology that when the water level detector detects that the water tank is full of water, there is actually a large space in the water tank that is not filled with water, thereby increasing the utilization rate of the water tank space.

[0050] The water tank can be used as a clean water tank or a sewage tank.

[0051] The cleaning device may be, but is not limited to, a self-propelled cleaning machine with a mopping function, a handheld cleaning machine, etc. The cleaning device may be, but is not limited to, a household device or a commercial device.

[0052] In this application, the inner portion of the water tank is divided into a water filling chamber and a detection chamber. Water will enter the detection chamber through the first channel only when the water filling chamber is full of water. At this point, the cleaning device determines that the water filling chamber is full only when the water detection module detects the presence of liquid in the detection chamber or detects that the liquid in the detection chamber has reached a target height. This allows the water detection module to be placed lateral to the detection chamber, eliminating the need to place it on top of the water tank. Accurately detecting the fullness of the water filling chamber can also be achieved.

[0053] Please refer to Figures 1 to 17, the following is a detailed description of the water tank 10, the water storage device including the water tank 10, and the cleaning equipment including the water storage device.

[0054] The cleaning device includes a housing 90, a water storage device, a controller, etc. The water storage device includes a water tank 10, and a water detection module 40 provided in the water tank 10, etc.

[0055] Taking a cleaning machine with a mopping function as an example, the cleaning machine includes at least a water storage device for storing clean water. The water tank 10 is a clean water tank 10. The controller controls the valve switch according to the information detected by the water detection module 40 to replenish water into the water tank 10 or stop replenishing water.

[0056] like Figure 2 、 Figure 3 、 Figures 5 to 11 As shown, the water tank 10 includes a bottom plate 13, side plates 12, and a top plate 11. The bottom plate 13 is spaced apart from the top plate 11, and the ends of the side plates 12 are connected to the top plate 11 and the bottom plate 13, respectively. The top plate 11, the side plates 12, and the bottom plate 13 enclose an inner cavity. In some embodiments, the water tank 10 includes a tank body and a tank cover. The tank body includes the aforementioned bottom plate 13 and side plates 12. The tank cover serves as the top plate 11 and is detachably mounted on the tank body. The upper side of the bottom plate 13 is the bottom wall 1301 of the inner cavity, the lower side of the top plate 11 is the top wall 1101 of the inner cavity, and the inner side of the side plates 12 is the side wall 1201 of the inner cavity.

[0057] Please continue to refer to Figures 5 to 14 The inner cavity includes a water filling chamber 101 and a detection chamber 102. That is, the water tank 10 has two areas: the water filling area at water filling chamber 101 and the detection area at detection chamber 102. The size of the water filling chamber 101 meets the volume requirements of the cleaning equipment water tank 10 and is used to hold clean water or dirty water. The detection chamber 102 is connected to the water filling chamber 101. The water detection module 40 detects the presence of water or the water level in the detection chamber 102, providing feedback on whether the water filling chamber 101 is full of water.

[0058] The water tank 10 is provided with a water inlet, one end of which is located within the water filling chamber 101, through which external water enters the water tank 10. An air hole 106 is provided on the top plate 11 or the side plate 12, one end of which is located within the detection chamber 102. The detection chamber 102 communicates with the outside of the water tank 10 through the air hole 106. When water is flowing into or out of the water tank 10, the interior of the water tank 10 communicates with the external atmosphere through the air hole 106.

[0059] Reference Figure 5 、 Figure 7 、 Figures 9 to 14A first channel 104 is further provided in the water tank 10 and is located on a side close to the tank top plate 11. The water tank 10 is in a water-filled state. When the water tank 10 is in the water-filled state, the detection chamber 102 is connected to the water filling chamber 101 through the first channel 104. Water enters the water filling chamber 101 from the water inlet and then enters the detection chamber 102 through the first channel 104.

[0060] The water detection module 40 is used to detect whether there is water in the detection chamber 102, or whether the water in the detection chamber 102 has reached a preset water volume or a preset height. The water detection module 40 can be, but is not limited to, a photoelectric liquid level sensor, a float-type liquid level sensor, a resistive liquid level sensor, a capacitive liquid level sensor, or an ultrasonic liquid level sensor. The water detection module 40 can be a non-contact sensor or a contact sensor.

[0061] The following is an application scenario of the cleaning equipment of this application:

[0062] The water tank 10 is used as a fresh water tank 10. The cleaning device is one of an automatic mopping machine, an automatic sweeping and mopping machine, a handheld mopping machine, and a handheld vacuuming and mopping machine. After completing the cleaning work, the cleaning device automatically or passively returns to the base station. The fresh water in the water tank 10 is used during the cleaning process. After returning to the base station, the water detection module 40 detects whether the water tank 10 is full of water.

[0063] If it is not in a full water state, water is added to the water filling chamber 101 of the water tank 10 of the cleaning equipment through the base station. During the water filling process, water first fills the water filling chamber 101 and then enters the detection chamber 102. It can be understood that during the process of water entering the water filling tank 10, since the air holes 106 on the top or side of the detection chamber 102 are externally connected to the inside and outside of the water tank 10, when there is no water inside the water tank 10 and water is added to the water filling chamber 101, the water will fill the water filling chamber 101, and at the same time, the gas in the water filling chamber 101 will enter the detection chamber 102 through the first channel 104, and finally be discharged through the air holes 106 at the detection chamber 102. When the gas in the water filling chamber 101 is completely emptied (that is, the water filling chamber 101 is full of water), the water will continue to overflow into the detection chamber 102 through the first channel 104. When the water level detector detects that there is water in the detection chamber 102, or detects that the water level in the detection chamber 102 reaches a preset height, the water filling is stopped at this time. Figure 2 、 Figure 8 、 Figures 9 to 14 As shown, since the water detection module 40 is disposed in the detection chamber 102, the water detection module 40 only detects the water in the detection chamber 102. When water is detected in the detection chamber 102, the water chamber 101 is in a state of being emptied of air and filled with water, thereby maximizing the space utilization of the water chamber 101, accurately detecting the water-filling state, and improving detection accuracy. The water detection module 40 does not detect the water in the water chamber 101.

[0064] It should also be noted that the detection chamber 102 can be located on one side of the water filling chamber 101 in the horizontal direction. The setting of the detection chamber 102 will not affect the overall height of the water tank 10, and can meet the requirements of small height and lightweight design of mops and sweepers, and achieve the following effect: during the water filling chamber 101 replenishment process, after the controller stops replenishing water based on the signal of the water detection module 40, the water filling chamber 101 is completely filled with water, the water reaches the top wall of the water filling chamber 101, and the space of the water filling chamber 101 is not wasted.

[0065] In some embodiments, the volume of the detection chamber 102 is 0.5% to 20% of the volume of the water chamber 101 .

[0066] The water tank 10, water storage device and cleaning equipment of the present application are based on the improvement of the structure of the water tank 10, which realizes that when the water filling chamber 101 in the water tank 10 is filled with water, the water detection module 40 will send a water full signal only when the water filling chamber 101 is completely full of water, thereby stopping the water filling chamber 101 from continuing to fill with water. In addition, the water detection module 40 does not need to be installed on the top of the water tank 10, but can be installed on the side or inside the detection chamber 102 of the water tank 10 to meet the overall appearance or structural requirements of the water storage device. For example, the water detection module 40 does not need to be installed on the top of the water tank 10, such as Figure 1 As shown, the top plate 11 of the water tank 10 can be basically flush with the top surface of the device casing 90. When the top of the water tank 10 is exposed for the convenience of users to take and disassemble, the water detection module 40 will not be exposed, which has a beautiful appearance and is conducive to the waterproofing of the water detection module 40.

[0067] In the cleaning equipment, the water in the water tank 10 needs to be discharged outward. Taking the cleaning equipment as a mop or a sweeper-mop machine as an example, when the cleaning equipment is mopping the floor, or when the clean water in the water tank 10 of the cleaning equipment has been standing for a few days and the user does not want to use the clean water that has been standing for too long to wash the floor and needs to replace the water in the water tank 10, the water in the water tank 10 is pumped out through a water pump or other power device.

[0068] The water tank 10 is provided with a water outlet, and the orifice on one side of the water outlet is located inside the water filling chamber 101. The water in the water filling chamber 101 can flow out of the water tank 10 through the water outlet, and the water inlet and outlet can be two independent holes or the same hole.

[0069] Optionally, in order to allow the water in the detection cavity 102 to be drained, the water tank 10 is provided with a drainage mode by at least any of the following methods:

[0070] One of the water tank 10 drainage methods: Figures 2 to 11 As shown, there is no water outlet at the detection chamber 102 , and only a water outlet is provided at the water filling chamber 101 , and the water in the detection chamber 102 is also discharged through the water outlet at the water filling chamber 101 .

[0071] Furthermore, a second channel 105 is provided between the detection chamber 102 and the water filling chamber 101. The second channel 105 is located on a side close to the tank bottom plate 13. In other words, the second channel 105 is located on a side close to the inner chamber bottom wall 1301. When the water tank 10 is in the draining state, the detection chamber 102 is connected to the water filling chamber 101 through the second channel 105. Since the water outlet is located in the water filling chamber 101 and the air hole 106 is located in the detection chamber 102, a negative pressure is generated at the water outlet by a device such as a water pump to pump water. At this time, the water in the detection chamber 102 will enter the water filling chamber 101 through the second channel 105 at the bottom. In this way, the water in the detection chamber 102 is emptied first, and then the water in the water filling chamber 101 is emptied. In this way, the water in both the water filling chamber 101 and the detection chamber 102 can be drained through only one water outlet in the water filling chamber 101, which is highly efficient.

[0072] Water tank 10 drainage method 2: Figures 12 to 14 As shown, a water outlet is also provided at the position of the detection chamber 102 (not shown in the figure). The water outlet at the water filling chamber 101 and the water outlet at the detection chamber 102 can be connected through the same pipeline and then connected to a water pump to meet the drainage requirements of the water filling chamber 101 and the detection chamber 102 when the water tank 10 needs to be drained.

[0073] In one embodiment, referring to Figure 3 、 Figure 5 、 Figure 7 、 Figures 9 to 11 When the second channel 105 is provided in the water tank 10, a flow chamber 103 is also provided within the inner cavity. The flow chamber 103 is located between the water filling chamber 101 and the detection chamber 102. The water filling chamber 101 is connected to the flow chamber 103 via the first channel 104, and the flow chamber 103 is connected to the detection chamber 102 via the second channel 105. In this way, a loop structure is formed between the water filling chamber 101, the first channel 104, the flow chamber 103, the second channel 105, and the detection chamber 102. Only after the water in the detection area is completely emptied does the gas enter the water filling area through the loop structure, achieving accurate identification of a non-full state.

[0074] Reference Figure 10 When water enters the water tank 10, the dotted arrows indicate the water flow path. The water entering the water tank 10 sequentially fills the water filling chamber 101, the first channel 104, the flow chamber 103, the second channel 105 and enters the detection chamber 102. Figure 11 When the water tank 10 is draining water outward, the dotted arrows indicate the water flow path. Under the condition that there is negative pressure suction on one side of the water filling chamber 101 and there is an air hole 106 on the upper side of the detection chamber 102 for air intake, the water in the detection chamber 102, the second channel 105, the flow chamber 103, and the first channel 104 are emptied in sequence under the action of pressure, and the water in the water filling chamber 101 is emptied last.

[0075] In one embodiment, the water tank 10 includes a first partition 20, which is disposed in the inner cavity of the water tank 10 and is connected to the inner cavity wall. Figure 5 、 Figure 7 、 Figures 9 to 11 As shown) or without flow cavity 103 (as shown Figures 12 to 14 In the case shown in FIG. 1 , the first partition 20 is located between the water filling chamber 101 and the detection chamber 102. A first opening 21 is provided on the side of the first partition 20 closest to the tank top plate 11, and the first channel 104 is located between the edge of the first opening 21 and the tank top plate 11. In this way, the first partition 20 cooperates with the inner wall of the water tank 10 to separate the water filling area from the detection area. This ensures that water can only enter the detection chamber 102 through the first channel 104 between the first partition 20 and the tank top plate 11, thereby ensuring that when water enters the detection chamber 102, the water filling chamber 101 remains full.

[0076] In one embodiment, referring to Figure 5 、 Figure 7 、 Figures 9 to 11 A flow chamber 103 is provided in the water tank 10, and a first partition 20 and a second partition 30 are provided in the water tank 10. The first partition 20 and the second partition 30 are both provided in the inner cavity and are both connected to the cavity wall of the inner cavity. The first partition 20 is located between the water filling cavity 101 and the flow chamber 103, and the second partition 30 is located between the flow chamber 103 and the detection cavity 102; a first opening 21 is provided on the side of the first partition 20 close to the box top plate 11, and a first channel 104 is located between the edge of the first opening 21 and the box top plate 11; a second opening 31 is provided on the side of the second partition 30 close to the box bottom plate 13, and the channel is located between the edge of the second opening 31 and the box bottom plate 13.

[0077] Optionally, refer to Figure 2 、 Figure 3 、 Figure 5 、 Figure 7 、 Figure 9 The bottom of the first partition 20 is connected to the tank bottom plate 13, the sides of the first partition 20 are connected to the tank side plates 12, and the top of the first partition 20 is connected to the tank top plate 11, thereby enclosing a detection chamber 102. The bottom of the second partition 30 is connected to the tank bottom plate 13, the sides of the second partition 30 are connected to the tank side plates 12 and / or the first partition 20, and the top of the partition is connected to the tank top plate 11, thereby enclosing a flow chamber 103 and a water filling chamber 101 on both sides of the second partition 30. The volume of the water filling chamber 101 accounts for 80% to 99.5% of the total volume of the water tank 10.

[0078] In other embodiments, the first partition 20 and the second partition 30 may also be arranged as follows: Figures 15 to 17As long as the water filling cavity 101, the flow cavity 103 and the detection cavity 102 can be formed in the inner cavity, a water flow loop of the water filling cavity 101, the first channel 104, the flow cavity 103, the second channel 105 and the detection cavity 102 can be formed.

[0079] In this embodiment, the configuration of the first and second baffles 20 and 30, in conjunction with the inner wall of the water tank 10, provides a water chamber 101, a first channel 104, a flow chamber 103, a second channel 105, and a detection chamber 102 within the water tank 10. This requires minimal structural modification to the water tank 10 and facilitates fabrication. For example, the first and second baffles 20, 30, bottom plate 13, and side plates 12 can be formed using a single-piece molding process.

[0080] In other embodiments, the water tank 10 may not include the flow chamber 103 or the second partition 30, but only the first partition 20. The side surfaces of the first partition 20 serve as the walls of the water filling chamber 101 and the detection chamber 102, respectively. Furthermore, a first channel 104 is provided between the first partition 20 and the top plate 11, and a second channel 105 is provided between the first partition 20 and the bottom plate 13. A cover is provided at the second channel 105, movably mounted on the first partition 20 or the tank body and movable between a blocking position and an open position. When the water tank 10 is filled with water, the cover is in the blocking position, sealing the second channel 105, allowing the water filling chamber 101 to communicate with the detection chamber 102 only through the first channel 104. When the water tank 10 is draining, the cover is in the open position, allowing the detection chamber 102 to communicate with the water filling chamber 101 through the second channel 105. A sealing member may also be provided between the blocking cover and the edge of the second channel 105 to improve the sealing performance of the second channel 105 when the blocking cover is in the shielding position.

[0081] In one embodiment, the cavity wall of the detection cavity 102 is made of opaque material, so that when the water detection module 40 used is an infrared sensor or a laser sensor, when the emitter emits sensing light (infrared light or laser) into the detection cavity 102, the light can be reflected and does not enter the water cavity 101.

[0082] Please refer to Figure 6. In one embodiment, the detection cavity 102 is located at the corner of the inner cavity of the water tank 10. On the one hand, it is convenient to reserve the middle position of the water tank 10 for the water filling cavity 101 which plays the role of filling water, and the water filling cavity 101 is easy to use. On the other hand, the detection cavity 102 is set at the corner. When a water level sensor with a transmitter and a receiver such as a photoelectric liquid level sensor is used, Figure 2 、 Figure 8 As shown, the transmitter part and the receiver part of the module can be fixed to two adjacent side panels at the corners respectively.

[0083] Optionally, the box side plate 12 includes a first plate portion 121 and a second plate portion 122 , the first plate portion 121 and the second plate portion 122 are matched at an angle and connected to each other, and the detection cavity 102 is located between the first plate portion 121 and the second plate portion 122 .

[0084] In some embodiments, the first plate portion 121 is a straight plate portion, and the second plate portion 122 is a curved plate portion. The detection cavity 102 is located between the straight plate portion, the partition plate, and the curved plate portion.

[0085] Please refer to Figure 6 In one embodiment, the air hole 106 is provided on the top plate 11 of the box, so that the liquid in the detection cavity 102 can reach a higher position and will not overflow from the air hole 106.

[0086] Optionally, the top plate 11 is provided with at least two air holes 106: one for air intake and one for air exhaust. Correspondingly, at least two one-way valves 50 are provided in each of the air holes 106, one for air outlet and the other for air intake. Providing one-way valves in the air holes 106 prevents dust from entering the detection chamber 102 through the air holes 106, ensuring cleanliness within the detection chamber 102 and improving the sensitivity of water level detection within the detection chamber 102.

[0087] In other embodiments, only one air hole 106 may be provided, and a dustproof cover may be provided to protect the air hole 106 from dust. Of course, when the air hole 106 and the one-way valve 50 are provided, a dustproof cover may also be provided.

[0088] In the description herein, it should be understood that terms such as "upper," "lower," "left," and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0089] Throughout this specification, references to terms such as "one embodiment" and "example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example.

[0090] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0091] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. A water tank, characterized in that: The water tank (10) comprises a tank top plate (11), a tank side plate (12) and a tank bottom plate (13), wherein the tank top plate (11), the tank side plate (12) and the tank bottom plate (13) enclose an inner cavity; The inner cavity comprises a water filling cavity (101) and a detection cavity (102); the water tank (10) is provided with a water inlet, and the opening on one side of the water inlet is located inside the water filling cavity (101); the water filling cavity (101) is communicated with the detection cavity (102) through a first channel (104), and the first channel (104) is arranged close to the tank top plate (11); the water tank (10) is provided with an air hole (106), and the opening on one side of the air hole (106) is located inside the detection cavity (102), and the detection cavity (102) is communicated with the outside of the water tank (10) through the air hole (106).

2. The water tank according to claim 1, characterized in that A second channel (105) is provided between the detection chamber (102) and the water filling chamber (101), and the second channel (105) is located on a side of the box bottom plate (13) close to the inner chamber; The water tank (10) is provided with a water outlet hole, the orifice of the water outlet hole is located in the water filling cavity (101); the water tank (10) has a drainage state, and when the water tank (10) is in the drainage state, the detection cavity (102) is connected to the water filling cavity (101) through the second channel (105).

3. The water tank according to claim 2, characterized in that The inner cavity further comprises a flow cavity (103), and the flow cavity (103) is located between the water filling cavity (101) and the detection cavity (102); the water filling cavity (101) is connected to the flow cavity (103) through the first channel (104), and the flow cavity (103) is connected to the detection cavity (102) through the second channel (105).

4. The water tank according to claim 2, characterized in that The water tank (10) further comprises a first partition (20), wherein the first partition (20) is arranged in the inner cavity and connected to the cavity wall of the inner cavity; The first partition (20) is located between the water filling chamber (101) and the detection chamber (102); a first opening (21) is provided on a side of the first partition (20) close to the box top plate (11), and the first channel (104) is located between the edge of the first opening (21) and the box top plate (11).

5. The water tank according to claim 3, characterized in that The water tank (10) comprises a first partition (20) and a second partition (30), wherein the first partition (20) and the second partition (30) are both arranged in the inner cavity and connected to the cavity wall of the inner cavity; The first partition (20) is located between the water-filling chamber (101) and the flow chamber (103), and the second partition (30) is located between the flow chamber (103) and the detection chamber (102); A first opening (21) is provided on a side of the first partition (20) close to the box top plate (11), and the first channel (104) is located between the edge of the first opening (21) and the box top plate (11); a second opening (31) is provided on a side of the second partition (30) close to the box bottom plate (13), and the channel is located between the edge of the second opening (31) and the box bottom plate (13).

6. The water tank according to any one of claims 1 to 5, characterized in that: The detection cavity (102) is located at a corner of the water tank (10); The box side plate (12) comprises a first plate portion (121) and a second plate portion (122), wherein the first plate portion (121) and the second plate portion (122) are matched at an angle and connected to each other, and the detection cavity (102) is located between the first plate portion (121) and the second plate portion (122).

7. The water tank according to any one of claims 1 to 5, characterized in that: The air hole (106) is provided on the box top plate (11); the box top plate (11) is provided with at least two air holes (106), and at least two one-way valves (50) are respectively provided on the two air holes (106), one of the one-way valves (50) is an air outlet one-way valve (50), and the other one-way valve (50) is an air inlet one-way valve (50).

8. A water storage device, characterized in that: The water tank (10) comprises the water tank (10) according to any one of claims 1 to 7, and further comprises a water detection module (40); the water detection module (40) is fixed to the outside of the tank side panel (12) and is located next to the detection cavity (102), or the water detection module (40) is arranged in the detection cavity (102).

9. The water storage device according to claim 8, characterized in that The water detection module (40) is one of a photoelectric liquid level sensor, a float type liquid level sensor, a resistance type liquid level sensor, a capacitance type liquid level sensor, and an ultrasonic liquid level sensor.

10. A cleaning device, characterized in that: The water storage device according to claim 8 further comprises a water pump, wherein the water pump is connected to the water inlet of the water tank (10) through a connecting pipe.

Images