Water tank for cleaning equipment and cleaning equipment

Abstract

The invention relates to a water tank for cleaning equipment and the cleaning equipment, and the water tank comprises a tank body with a first liquid storage cavity; the cleaning liquid container is positioned in the first liquid storage cavity and is provided with a second liquid storage cavity; the middle bin comprises a third liquid storage cavity, and the third liquid storage cavity comprises a first end communicated with the first liquid storage cavity and a second end communicated with the second liquid storage cavity; check valves are arranged at the first end and the second end, so that liquid in the second liquid storage cavity flows into the third liquid storage cavity in a one-way mode and then flows into the first liquid storage cavity in a one-way mode; according to the configuration of the trigger, under the condition that the trigger is pressed, the pressure of the third liquid storage cavity is increased, and the check valve at the first end is opened, so that liquid flows into the first liquid storage cavity in a one-way mode. According to the water tank for the cleaning equipment and the cleaning equipment, the cleaning liquid can be quantitatively added, and the operation is simple.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and in particular to a water tank for cleaning equipment and a cleaning equipment. Background Art

[0002] In modern society, cleaning equipment not only reduces the labor cost of cleaning, but also improves work efficiency and cleanliness. It is an indispensable equipment in modern society. For example, a floor scrubber is a cleaning equipment suitable for hard floors. It can not only clean, but also suck up sewage and take it away from the site. It has the advantages of environmental protection, energy saving, and high efficiency.

[0003] The current floor scrubber products provide cleaning liquid as an accessory to users. Users add cleaning liquid into the water tank by themselves when using. Since users cannot add the cleaning liquid in an accurate amount, the floor cannot be cleaned well when too little cleaning liquid is added. When too much cleaning liquid is added, too much cleaning liquid remains on the floor, making the floor slippery. Summary of the invention

[0004] In view of this, the embodiments of the present application provide a water tank for a cleaning device and a cleaning device to solve at least one problem existing in the background technology.

[0005] In a first aspect, an embodiment of the present application provides a water tank for a cleaning device, comprising:

[0006] The box body has a first liquid storage cavity;

[0007] A cleaning liquid container having a second liquid storage chamber;

[0008] The intermediate compartment includes a third liquid storage chamber, wherein the third liquid storage chamber includes a first end connected to the first liquid storage chamber and a second end connected to the second liquid storage chamber; both the first end and the second end are provided with a check valve, so that the liquid in the second liquid storage chamber flows into the third liquid storage chamber in one direction, and then flows into the first liquid storage chamber in one direction;

[0009] The trigger is configured such that: when the trigger is pressed, the pressure in the third liquid storage chamber increases, and the first check valve at the first end is opened to allow liquid to flow into the first liquid storage chamber in a unidirectional manner.

[0010] Optionally, the compartment wall of the intermediate compartment corresponding to the trigger is elastic so as to be squeezed and deformed when the trigger is pressed, thereby increasing the pressure of the third liquid storage chamber.

[0011] Optionally, the intermediate chamber includes a chamber body and a chamber cover, and the chamber body and the chamber cover are closed to form the third liquid storage chamber; the chamber cover is elastic, and an outer wall of the chamber cover abuts against the trigger or forms the trigger.

[0012] Optionally, the third liquid storage chamber includes a first sub-chamber located in the chamber body and a second sub-chamber located in the chamber cover; the second sub-chamber is formed by a portion of the chamber wall protruding outward at one end opposite to the chamber body, and the protruding outer wall of the second sub-chamber is the trigger.

[0013] Optionally, the second sub-cavity includes two cavities distributed along a first direction, and the cross-sectional areas of the two cavities gradually decrease from one end where the two cavities are connected to the other end; the first direction is the direction in which the bin cover and the bin body are closed.

[0014] Optionally, the bottom wall of the third liquid storage chamber is provided with at least one limiting protrusion corresponding to the trigger to limit the pressing stroke of the trigger.

[0015] Optionally, at least one sound-emitting component is disposed in the third liquid storage chamber to emit a prompt sound after the trigger is pressed into place; and a sound-emitting component groove for installing the sound-emitting component is disposed on the bottom wall of the third liquid storage chamber.

[0016] Optionally, a groove extending from the first end to the second end is provided in the third liquid storage chamber to guide the liquid in the third liquid storage chamber to flow into the first liquid storage chamber.

[0017] Optionally, a first connecting portion protruding toward the cleaning liquid container is provided at the bottom of the bin body, and the cleaning liquid container is provided with an opening matching the first connecting portion, and the opening and the first connecting portion are sealed and connected.

[0018] Optionally, the first check valve extends outward from the bottom of the bin body so as to input the liquid in the third liquid storage chamber into the first liquid storage chamber through the first check valve.

[0019] Optionally, the first check valve comprises a joint and a valve body that is deformable under pressure, and the joint is installed on a passage from the tank body to the first liquid storage chamber.

[0020] Optionally, the valve body may be made of a flexible material.

[0021] Optionally, at least one side surface of the valve body is an inclined surface, so that the cross-section of the inner cavity of the valve body gradually decreases from the joint to a direction away from the joint.

[0022] Optionally, the cross-sectional shape of the trigger is circular, and the first connecting portion protrudes outward along a center line of the circle.

[0023] Optionally, the cleaning liquid container is located in the first liquid storage cavity, and the cleaning liquid container includes:

[0024] A bottle body, the inner cavity of which is the second liquid storage cavity, and the mouth of the bottle body faces the intermediate compartment;

[0025] A bottle buckle is buckled on the bottle mouth and comprises an inner plug extending into the second liquid storage cavity through the bottle mouth, and a second check valve at the second end is arranged on the inner plug.

[0026] Optionally, the inner plug includes a stepped hole, and the stepped hole includes: a first hole and a second hole, the first hole has a larger diameter than the second hole, and the first hole is farther away from the second liquid storage cavity than the second hole;

[0027] The second check valve comprises:

[0028] A base, located in the first hole; the base includes a third hole in the same direction as the second hole;

[0029] a blocking body, located in the third hole, the blocking body cooperates with the second hole, and can block the second hole to block the water flow when the pressure of the third liquid storage chamber is greater than or equal to that of the second liquid storage chamber; the outer diameter of the blocking body is greater than the aperture of the second hole;

[0030] The elastic arm is located between the base and the blocking body and connects the blocking body to the base; when the pressure in the second liquid storage chamber is greater than that in the third liquid storage chamber, the elastic arm is deformed to lift the blocking body and open the second hole.

[0031] Optionally, the blocking body is a cylinder, and the elastic arm includes at least two arc-shaped strips evenly distributed around the cylinder, and two ends of the arc-shaped strips are respectively connected to the base and the blocking body.

[0032] Optionally, the bottle mouth is snap-fitted and connected to the bottle buckle via a snap-fit ​​structure, and the snap-fit ​​structure seals the liquid in the bottle body; the snap-fit ​​structure forms an airway for air to flow from outside the bottle body into the bottle body.

[0033] Optionally, the cleaning liquid container comprises:

[0034] A liquid outlet pipe, one end of which is connected to the third liquid storage cavity, and the other end of which extends into the second liquid storage cavity and to the bottom of the second liquid storage cavity away from the third liquid storage cavity.

[0035] Optionally, the liquid outlet pipe is inserted into the inner plug, and the inner wall of the inner plug is provided with a mounting protrusion so that the liquid outlet pipe is installed in the inner plug with an interference fit.

[0036] Optionally, the bottom of the liquid outlet pipe is wedge-shaped.

[0037] Optionally, a gravity ball is fixed to the bottom of the liquid outlet pipe, so that the bottom of the liquid outlet pipe moves following the movement of the gravity ball.

[0038] Optionally, a volume ratio of the cleaning liquid container to the box body is less than or equal to 0.1.

[0039] Optionally, the water tank for cleaning equipment further comprises:

[0040] The intermediate bin fixing seat is detachably connected to the opening of the cleaning liquid container to expose the opening; the intermediate bin is installed on the intermediate bin fixing seat, and the components interconnected between the intermediate bin and the cleaning liquid container pass through the intermediate bin fixing seat.

[0041] Optionally, the water tank for cleaning equipment further comprises:

[0042] The intermediate bin fixing seat is detachably connected to the bottle buckle to expose the inner plug of the bottle buckle; the intermediate bin is installed on the intermediate bin fixing seat, and the components interconnected between the intermediate bin and the cleaning liquid container pass through the intermediate bin fixing seat.

[0043] Optionally, the intermediate bin fixing seat and the bottle buckle are connected via a rotating snap-fit ​​structure.

[0044] Optionally, the water tank (50) for cleaning equipment further comprises:

[0045] The water tank cover, the cleaning liquid container and the intermediate bin are both installed on the water tank cover through the intermediate bin fixing seat, and the intermediate bin fixing seat is fixedly connected to the water tank cover through threaded fasteners.

[0046] In a second aspect, an embodiment of the present application provides a cleaning device, comprising any one of the water tanks for cleaning devices described above.

[0047] Optionally, the cleaning device further comprises:

[0048] The handle comprises a gripping end for human hand and an opposite working end; the water tank is mounted on the handle and is relatively close to the gripping end;

[0049] The handle is provided with a slot or a protrusion for installing the water tank, and the water tank is inserted into the handle; or, the handle is provided with an installation cavity for installing the water tank, and the installation cavity is provided with an opening for exposing the trigger.

[0050] The water tank and cleaning equipment for cleaning equipment include: a box body, having a first liquid storage chamber; a cleaning liquid container, having a second liquid storage chamber; an intermediate chamber, including a third liquid storage chamber, wherein the third liquid storage chamber includes a first end connected to the first liquid storage chamber and a second end connected to the second liquid storage chamber; the first end and the second end are both provided with a check valve, so that the liquid in the second liquid storage chamber flows into the third liquid storage chamber in one direction, and then flows into the first liquid storage chamber in one direction; a trigger, configured as follows: when the trigger is pressed, the pressure of the third liquid storage chamber increases, and the first check valve at the first end is opened, so that the liquid flows into the first liquid storage chamber in one direction. It can be seen that the water tank and cleaning equipment for cleaning equipment of the embodiment of the present application, the cleaning liquid container is arranged in the box body of the water tank, and there is no need to add cleaning liquid additionally, and an intermediate chamber and a trigger are also provided, so that the cleaning liquid can be added relatively quantitatively, and the operation is simple. Therefore, the water tank and cleaning equipment for cleaning equipment of the embodiment of the present application can add cleaning liquid quantitatively, and the operation is simple.

[0051] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0053] Figure 1 A schematic diagram of a cleaning device provided in one embodiment of the present application;

[0054] Figure 2 A schematic diagram of a water tank for cleaning equipment provided in one embodiment of the present application;

[0055] Figure 3 for Figure 2 A decomposition diagram (exploded diagram);

[0056] Figure 4 for Figure 2 A schematic cross-sectional view of Figure 5 for Figure 2 Another cross-sectional schematic diagram of;

[0057] Figure 6 for Figure 5 A local enlarged schematic diagram of the middle A;

[0058] Figure 7 A schematic diagram of an intermediate compartment in a water tank for cleaning equipment provided in one embodiment of the present application;

[0059] Figure 8Schematic diagram of a first check valve in a water tank of a cleaning device provided in an embodiment of the present application Figure 1 ;

[0060] Fig. 9 Schematic diagram of a first check valve in a water tank of a cleaning device provided in an embodiment of the present application Figure 2 ;

[0061] Fig.10 A schematic diagram of a tank body in a water tank of a cleaning device provided in one embodiment of the present application;

[0062] Fig.11 A schematic diagram of a compartment cover in a water tank of a cleaning device provided in one embodiment of the present application;

[0063] Fig.12 A schematic diagram of a cleaning liquid container in a water tank of a cleaning device provided in one embodiment of the present application;

[0064] Fig.13 A schematic diagram of a second check valve in a water tank of a cleaning device provided in an embodiment of the present application;

[0065] Fig.14 A schematic diagram of a flow path of a cleaning liquid in a water tank of a cleaning device provided in one embodiment of the present application;

[0066] Fig.15 A schematic diagram of a path for air in a water tank of a cleaning device to flow into a cleaning liquid container provided in one embodiment of the present application;

[0067] Fig.16 A schematic diagram of an intermediate bin mounting seat in a water tank of a cleaning device provided in one embodiment of the present application.

[0068] Description of reference numerals:

[0069] 10. handle; 20. floor brush assembly; 30. motor assembly; 50. water tank; 51. box body; 52. cleaning liquid container; 522. bottle body; 523. bottle buckle; 5231. inner plug; 5232. clamping strip; 524. liquid outlet pipe; 53. intermediate compartment; 532. compartment body; 5321. limiting protrusion; 5322. sounding member groove; 5323. guide groove; 5324. first connecting part; 5325, O-ring; 533, bin cover; 54, trigger; 551, first check valve; 5511, connector; 5512, valve body; 5513, inclined plane; 552, second check valve; 5521, base; 5522, plugging body; 5523, elastic arm; 56, intermediate bin fixing seat; 561, slot; 562, first through hole; 563, second through hole; 57, water tank cover. DETAILED DESCRIPTION

[0070] In order to make the technical solutions and beneficial effects of the present application more obvious and easy to understand, the following is a detailed description by listing specific embodiments. The drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which the present application belongs.

[0071] In the description of the present application, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of simplified description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be understood as a limitation on the present application.

[0072] In this application, the terms "first" and "second" are used only for the purpose of clear description and should not be understood as the relative importance of the indicated features or the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly include at least one of the features. In the description of this application, "multiple" means at least two, such as two, three, etc.; "several" means at least one, such as one, two, three, etc., unless otherwise clearly and specifically defined.

[0073] In this application, unless otherwise clearly defined, the terms "install", "connect", "connect", "fix", "set", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0074] In the present application, unless otherwise clearly defined, a first feature being “on”, “above”, “above”, “below”, “below”, “below” or “below” a second feature may mean that the first feature is in direct contact with the second feature, or the first feature and the second feature are in indirect contact with each other through an intermediate medium. Moreover, a first feature being “on”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than the horizontal height of the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0075] In order to thoroughly understand the present application, detailed steps and detailed structures will be presented in the following description to illustrate the technical solution of the present application. The preferred embodiments of the present application are described in detail below, but in addition to these detailed descriptions, the present application may also have other implementation methods.

[0076] In order to solve the technical problems existing in the prior art, an embodiment of the present application provides a water tank 50 for a cleaning device.

[0077] Since the water tank 50 of the embodiment of the present application is used for cleaning equipment, before introducing the water tank 50, the cleaning equipment is briefly introduced. Figure 1 As shown, the cleaning device comprises:

[0078] A handle 10, comprising a gripping end for human hand gripping and an opposite working end;

[0079] A floor brush assembly 20 connected to the working end of the handle 10;

[0080] The motor assembly 30 is mounted on the handle 10 and is relatively close to the floor brush assembly 20;

[0081] The water tank 50 is mounted on the handle 10 and is relatively close to the gripping end.

[0082] It should be noted that the cleaning device applied to the water tank 50 in the embodiment of the present application is described by taking a floor scrubber as an example, for example, the handle 10, floor brush assembly 20, motor assembly 30, water tank 50, etc. in the cleaning device are all configurations of the floor scrubber. It can be understood that the water tank 50 in the embodiment of the present application can also be applied to other cleaning devices.

[0083] refer to Figure 2 and Figure 3 As shown, the water tank 50 for cleaning equipment includes:

[0084] The box body 51 has a first liquid storage chamber;

[0085] The cleaning liquid container 52 has a second liquid storage chamber;

[0086] The intermediate chamber 53 includes a third liquid storage chamber, wherein the third liquid storage chamber includes a first end connected to the first liquid storage chamber and a second end connected to the second liquid storage chamber; both the first end and the second end are provided with a check valve, so that the liquid in the second liquid storage chamber flows into the third liquid storage chamber in one direction, and then flows into the first liquid storage chamber in one direction;

[0087] The trigger 54 is configured such that when the trigger 54 is pressed, the pressure in the third liquid storage chamber increases, and the check valve at the first end is opened to allow liquid to flow into the first liquid storage chamber in a unidirectional manner.

[0088] It is understandable that the first liquid storage chamber in the water tank 50 is used to hold clean water, and an appropriate amount of cleaning liquid can also be added to achieve a better floor washing effect. Therefore, the embodiment of the present application is provided with a cleaning liquid container 52 for adding cleaning liquid into the water tank 50.

[0089] Without limitation, the intermediate chamber 53 not only connects the first liquid storage chamber and the second liquid storage chamber, but also serves to temporarily store the cleaning liquid and quantify the amount. The intermediate chamber 53 temporarily stores enough cleaning liquid for one addition, and when in use, it can be added directly, for example, through the trigger 54. After the addition, the cleaning liquid in the intermediate chamber 53 can be replenished to the original temporarily stored amount at the same time or later, in preparation for the next addition.

[0090] It can be understood that the check valve can also be called a one-way valve, that is, it can only flow in one direction and cannot flow in the other direction, so that the clean water will not flow into the cleaning liquid container 52 in the reverse direction. In addition, the check valve of this embodiment requires a certain pressure to open, for example, by pressing the trigger 54, the pressure of the third liquid storage chamber is increased, and the check valve at the first end is opened to allow the liquid to flow into the first liquid storage chamber in one direction. Then, after the pressing of the trigger 54 reaches the preset position, the amount of cleaning liquid added reaches the designed amount, and the trigger 54 is released. Due to the action of the check valve at the first end, the fluid entering the first liquid storage chamber cannot flow back, resulting in a reduction in the pressure in the third liquid storage chamber, and a pressure difference is generated with the second liquid storage chamber, so that the check valve at the second end opens under the pressure difference, so that the liquid in the second liquid storage chamber flows to the third liquid storage chamber due to the pressure until the pressure difference disappears. In this way, through the check valve, after each addition of cleaning liquid, the cleaning liquid in the intermediate chamber 53 will be automatically replenished to meet the amount added next time.

[0091] Specifically, the cross-section of the cleaning liquid container 52 may be circular, which is more convenient for processing and assembly of parts. Correspondingly, the main body of the cross-section of the box body 51 is also roughly circular, with only some areas slightly deformed to match other parts of the cleaning device, which is also more convenient for processing and assembly.

[0092] Without limitation, for the purpose of distinction, the check valve at the first end may be referred to as a first check valve 551 , and the check valve at the second end may be referred to as a second check valve 552 .

[0093] The water tank 50 for cleaning equipment in the embodiment of the present application has a cleaning liquid container 52 disposed in the box body 51 of the water tank 50, and does not require additional cleaning liquid to be added. An intermediate compartment 53 and a trigger 54 are also provided, so that cleaning liquid can be added in a relatively quantitative manner, and the operation is simple.

[0094] In detail, after the cleaning liquid container 52 is provided, the amount of cleaning for multiple times can be stored in the cleaning liquid container 52. There is no need to manually add cleaning liquid each time, such as pouring a small amount from a large bottle of cleaning liquid container. In addition, an intermediate bin 53 and a trigger 54 are provided, and the amount of cleaning liquid output by the trigger 54 each time is relatively fixed. In this way, there is no need to use a measuring cup like pouring laundry detergent. In addition, the amount of cleaning liquid used in cleaning equipment, such as a floor scrubber, is much less than that of a washing machine, which also avoids the inconvenience of using a small measuring cup.

[0095] In order to introduce the product more clearly and intuitively, the following briefly introduces the location distribution of each component in the water tank 50. Figure 4-Figure 6 As shown, it is assumed that the water tank 50 is placed vertically and the opening is facing upward (the following descriptions in other paragraphs are also assumed unless otherwise specified). Then the position distribution of the components can be: the cleaning liquid container 52 is located in the middle of the upper part of the water tank 50 and is fixed to the tank cover; the second end of the intermediate bin 53 is located in the middle of the cleaning liquid container 52 in the horizontal direction, and the first end extends horizontally toward the side of the box body 51, and the trigger 54 is above the middle of the intermediate bin 53 in the horizontal direction or above the second end. It can be understood that the position distribution of the various components in the above-mentioned water tank 50 is an optional setting in a specific product and does not limit the scope of protection of the patent application. In different usage scenarios or under different product requirements, the position distribution of the various components in the above-mentioned water tank 50 can also be other schemes.

[0096] In some embodiments, the wall of the intermediate chamber 53 corresponding to the trigger 54 may be elastic so as to be squeezed and deformed when the trigger 54 is pressed, thereby increasing the pressure of the third liquid storage chamber.

[0097] It can be understood that the trigger 54 is directly or indirectly connected to the wall of the intermediate warehouse 53, so that when the trigger 54 is pressed, the pressing force can also act on the wall of the intermediate warehouse 53, so that the wall is squeezed and deformed, squeezing the air in the third liquid storage chamber and increasing the pressure of the third liquid storage chamber.

[0098] Without limitation, the wall of the intermediate chamber 53 is elastic, and may be a structure of the chamber wall, for example, the wall thickness is relatively thin and has a certain strength, or the material itself is elastic, such as a rubber material. In this embodiment, the chamber wall may include a rubber material. It can be understood that the pressure of the third liquid storage chamber may be increased by other methods, for example, by inserting a piston into the third liquid storage chamber and adjusting the pressure by the depth of the piston.

[0099] In some embodiments, reference Figure 6 and Figure 7 As shown, the intermediate chamber 53 may include a chamber body 532 and a chamber cover 533 , and the chamber body 532 and the chamber cover 533 are combined to form the third liquid storage chamber; the chamber cover 533 is elastic, and the outer wall of the chamber cover 533 abuts against the trigger 54 or forms the trigger 54 .

[0100] Without limitation, when the water tank 50 is placed vertically, the bin body 532 and the bin cover 533 are placed vertically, that is, the bin cover 533 is above the bin body 532, and the two are closed in the vertical direction.

[0101] It is understandable that the intermediate bin 53 is designed as a combination of a bin body 532 and a bin cover 533, and the two are assembled after being processed separately, which simplifies the processing difficulty of a single part and also facilitates the two to be made of different materials. For example, the bin body 532 can be made of plastic, and the bin cover 533 can be made of rubber. It should be noted that the trigger 54 can be separately provided and abutted against the outer wall of the bin cover 533, or can be formed by the outer wall of the bin cover 533, without limitation.

[0102] Furthermore, when two materials are used, it is not only beneficial to trigger the trigger 54, but also can better ensure the sealing of the intermediate chamber and ensure sufficient pressure difference.

[0103] In some embodiments, reference Figure 7 As shown, the third liquid storage chamber may include a first sub-chamber located at the chamber body 532 and a second sub-chamber located at the chamber cover 533; the second sub-chamber is formed by a portion of the chamber wall protruding outward at one end of the chamber cover 533 opposite to the chamber body 532, and the protruding outer wall of the second sub-chamber is the trigger 54.

[0104] It can be understood that the first sub-cavity and the second sub-cavity are provided for the convenience of description, and may not necessarily exist or exist independently in actual components or products.

[0105] Without limitation, in order to make the pressing of the trigger 54 more targeted in direction, part of the chamber wall of the chamber cover 533 protrudes outward to form the trigger 54. In this way, pressing the trigger 54 can not only quickly and effectively increase the pressure of the third liquid storage chamber, but also save effort. In addition, the amount of liquid discharged can be controlled by designing the size of the protrusion.

[0106] In some embodiments, reference Fig.11 As shown, the second sub-cavity may include two cavities distributed along the first direction, and the cross-sectional area of ​​the two cavities gradually decreases from one end of the connection between the two to the other end; the first direction is the direction in which the bin cover 533 and the bin body 532 are closed.

[0107] It can be understood that when the water tank 50 is placed vertically, the first direction is the vertical direction. It can be understood that the pressing direction of the trigger 54 is also the vertical direction. In this way, two cavities distributed along the first direction are connected to form the second sub-cavity, which can make the cavity wall of the second sub-cavity stronger, deform more evenly during pressing, and make the rebound more powerful.

[0108] Furthermore, the cross-sectional area of ​​the cavity gradually decreases from one end where the two meet to the other end, that is, the cavity wall bulges outward, so that when the trigger 54 is pressed, it will bulge outward during deformation rather than being concave to block the gas passage.

[0109] Specifically, the second sub-cavity can be formed by connecting two truncated cone-shaped cavities, and the lower bases (ie, the ends with larger cross-sections) of the truncated cones are connected. In this way, the processing is more convenient.

[0110] Specifically, the outer contour of the trigger 54 can be set to a corrugated shape, which not only increases the surface roughness, which is beneficial to the pressing force, but also increases the strength of the pressing surface, which is beneficial to the rapid rebound after pressing.

[0111] In some embodiments, reference Fig.10 As shown, the bottom wall of the third liquid storage chamber may be provided with at least one limiting protrusion 5321 corresponding to the trigger 54 to limit the pressing stroke of the trigger 54 .

[0112] In this way, the amount of cleaning liquid added each time can be made more accurate. That is, when the trigger 54 is pressed, after the trigger 54 is deformed to a certain extent, it is blocked by the limiting protrusion 5321 and cannot be further deformed, which can limit the pressing stroke of the trigger 54 and further limit the amount of cleaning liquid added, that is, quantitative addition. Specifically, the limiting protrusion 5321 is located on the bin body 532.

[0113] Specifically, three limiting protrusions 5321 may be provided and evenly distributed within the corresponding range of the trigger 54. More specifically, the cross section of the trigger 54 may be circular, and the three limiting protrusions 5321 may be evenly distributed in the circumferential direction.

[0114] In some embodiments, continue to refer to Fig.10 As shown, at least one sound-generating component may be provided in the third liquid storage chamber to emit a prompt sound after the trigger 54 is pressed into place; and a sound-generating component groove 5322 for installing the sound-generating component is provided on the bottom wall of the third liquid storage chamber.

[0115] It is understandable that the sounding member can be used to remind the user to stop pressing. It can be set together with the above-mentioned limiting protrusion 5321, or it can be set separately, both of which can play a quantitative role.

[0116] Specifically, three sounding members can be provided, and the three sounding members can be evenly distributed within the circumference corresponding to the trigger 54. Correspondingly, three sounding member slots 5322 can also be provided.

[0117] In some embodiments, continue to refer to Fig.10 As shown, a guide groove 5323 extending from the first end to the second end may be opened in the third liquid storage chamber to guide the liquid in the third liquid storage chamber to flow into the first liquid storage chamber.

[0118] In this way, the liquid can flow more smoothly, and the fluid pressure can be relatively concentrated, making it easier to open the check valve at the first end, that is, the first check valve 551.

[0119] It should be noted that see Fig.10 As shown, the guide groove 5323 divides one of the limiting protrusions 5321 into two, so the above three limiting protrusions have slightly different shapes. The three limiting protrusions 5321 are evenly distributed in the circumference, and there is also a sounding member groove 5322, so due to space limitations, they can only be set at the guide groove 5323.

[0120] In some embodiments, continue to refer to Figure 7 As shown, the bottom of the warehouse body 532 may be provided with a first connection portion 5324 protruding toward the cleaning liquid container 52, and the cleaning liquid container 52 is provided with an opening that matches the first connection portion 5324, and the opening and the first connection portion 5324 are sealed and connected. By providing the protruding first connection portion 5324 at the bottom of the warehouse body 532, it is possible to facilitate the sealing between the warehouse body 532 and the cleaning liquid container 52. Within a certain range, the connection length between the two is long, which can improve the sealing effect.

[0121] Specifically, the first connection portion 5324 may be provided with a sealing ring, such as an O-shaped rubber ring 5325 or the like.

[0122] In some embodiments, the first check valve 551 extends outward from the bottom of the storage body 532 so that the liquid in the third liquid storage chamber can be input into the first liquid storage chamber through the first check valve 551 .

[0123] That is, in addition to the first connecting portion 5324 extending outward, the bottom of the bin body 532 also includes a first check valve 551 extending outward.

[0124] In some embodiments, reference Figure 8 and Fig. 9 The first check valve 551 includes a joint 5511 and a valve body 5512 that is deformable under pressure, and the joint 5511 is installed on the channel of the warehouse body 532 leading to the first liquid storage chamber.

[0125] Specifically, the first check valve 551 is constructed so that the liquid from the third liquid storage chamber can open the valve body 5512 and flow into the first liquid storage chamber, and the pressure generated by the liquid in the first liquid storage chamber can close the valve body 5512, but the liquid in the first liquid storage chamber cannot flow into the third liquid storage chamber, thereby playing a role of one-way circulation.

[0126] In some embodiments, the valve body 5512 may be made of a flexible material to achieve a deformable property under pressure.

[0127] Specifically, the valve body 5512 can be made of rubber.

[0128] In some embodiments, reference Figure 8 and Fig. 9 At least one side surface of the valve body 5512 is an inclined surface 5513, so that the inner cavity cross-section of the valve body 5512 gradually decreases from the joint 5511 to the direction away from the joint 5511.

[0129] Thus, under the pressure of the first liquid storage chamber, the opening of the valve body 5512 away from the joint 5511 is closed. When liquid from the third liquid storage chamber flows into the valve body 5512, the opening of the valve body 5512 can be opened and flow into the first liquid storage chamber.

[0130] In some embodiments, continue to refer to Figure 7 As shown, the cross-sectional shape of the trigger 54 may be a circle, and the first connecting portion 5324 protrudes outward along the center line of the circle.

[0131] In this way, after the trigger 54 is pressed and released, a more concentrated pressure difference can be generated on the cleaning liquid container 52 , so that the liquid in the cleaning liquid container 52 is sucked into the intermediate chamber 53 .

[0132] In some embodiments, reference Figure 3 and Fig.12 As shown, the cleaning liquid container 52 is located in the first liquid storage cavity, and the cleaning liquid container 52 may include:

[0133] The bottle body 522 has an inner cavity which is the second liquid storage cavity, and a bottle mouth of the bottle body 522 faces the intermediate compartment 53;

[0134] The bottle buckle 523 is buckled on the bottle mouth, and includes an inner plug 5231 extending into the second liquid storage cavity through the bottle mouth, and the check valve at the second end is arranged on the inner plug 5231.

[0135] The cleaning liquid container 52 of the embodiment of the present application is located in the first liquid storage cavity, that is, a part of the water tank 50. In this way, the structure is more compact, the appearance is more beautiful, and when combined together, the cleaning liquid container 52 is not easy to be damaged or lost.

[0136] It can be understood that the cleaning liquid container 52 is divided into a bottle body 522 and a bottle cap 523, which is convenient for processing and has the advantages of better sealing effect between the cleaning liquid container 52 and the intermediate compartment 53, and is also convenient for users to install after replenishing the cleaning liquid. Because during the installation process, it may be necessary to rotate or even invert the bottle body, providing a bottle cap can ensure that the cleaning liquid does not leak out during the rotation process.

[0137] Without limitation, the inner plug 5231 can be a portion of the bottle buckle 523 that extends from the bottle mouth into the second liquid storage chamber and wraps around the inner wall of the bottle mouth. The inner plug 5231 can be made of a material that is more easily elastically deformed and easier to seal than the bottle body 522.

[0138] It should be noted that the check valve at the second end, i.e., the second check valve 552, is arranged on the inner plug 5231, which can not only allow the liquid in the second liquid storage chamber to flow into the third liquid storage chamber in one direction, but also prevent the cleaning liquid from flowing out when the cleaning liquid container 52 is inverted.

[0139] In some embodiments, the inner plug 5231 includes a stepped hole, and the stepped hole includes: a first hole and a second hole, the first hole has a larger diameter than the second hole, and the first hole is farther away from the second liquid storage cavity than the second hole;

[0140] refer to Fig.13 , the second check valve 552 includes:

[0141] The base 5521 is located in the first hole; the base includes a third hole in the same direction as the second hole;

[0142] The blocking body 5522 is located in the third hole. The blocking body 5522 cooperates with the second hole. When the pressure of the third liquid storage chamber is greater than or equal to that of the second liquid storage chamber, the second hole can be blocked to block the water flow. The outer diameter of the blocking body 5522 is greater than the aperture of the second hole.

[0143] The elastic arm 5523 is located between the base 5521 and the blocking body 5522, and connects the blocking body 5522 to the base 5521; when the pressure in the second liquid storage chamber is greater than that in the third liquid storage chamber, the elastic arm 5523 is deformed to lift the blocking body 5522 and open the second hole.

[0144] In this way, when the trigger 54 is pressed, the pressure in the intermediate chamber 53 increases, and the pressure is loaded on the plugging body 5522, so that the plugging body 5522 maintains the blockage of the second hole, and the passage for the liquid in the intermediate chamber 53 to flow into the second liquid storage cavity is blocked, that is, the function of the one-way valve is activated. The liquid in the intermediate chamber 53 can only flow into the first liquid storage cavity through the first check valve 551 under the action of pressure. When the trigger 54 is released, the pressure in the intermediate chamber 53 decreases because the fluid in the intermediate chamber 53 decreases due to flowing into the first liquid storage cavity, and the pressure in the second liquid storage cavity is greater than that in the third liquid storage cavity, so that the elastic arm 5523 is deformed to lift the plugging body 5522 and open the second hole. After the pressure difference disappears, under the action of the elastic arm, the plugging body 5522 maintains the blockage of the second hole.

[0145] In some embodiments, the blocking body is a cylinder, and the elastic arm includes at least two arc-shaped strips evenly distributed around the cylinder, and the two ends of the arc-shaped strips are respectively connected to the base and the blocking body. In this way, the elastic force of the elastic arm is better. Specifically, the second check valve 552 can be made of thermoplastic with good elasticity. In a specific implementation, the number of the elastic arms can be 3, so that the elastic force is more evenly distributed on the entire circumference. It can be understood that, corresponding to this, the second hole is also a circular hole to cooperate with the blocking body.

[0146] In order to make the readers more clearly understand the working principle of the water tank of the embodiment of the present application, the flow path of the cleaning liquid in the water tank and the path of the air flowing into the cleaning liquid container are briefly introduced below. Fig.14 and Fig.15 ,

[0147] The cleaning liquid starts from the second liquid storage chamber, that is, the inner chamber of the bottle body 522 , passes through the inner plug 5231 , the second check valve 552 , the first connecting portion 5324 , the intermediate chamber 53 , and the first check valve 551 , and flows into the first liquid storage chamber.

[0148] The air starts from the first liquid storage cavity and flows into the inner cavity of the bottle body through the gap between the bottle body 522 and the bottle buckle.

[0149] As mentioned above: through the check valve, after each addition of cleaning liquid, the cleaning liquid in the intermediate chamber 53 will be automatically replenished to meet the amount to be added next time. That is, when the trigger 54 is pressed, the second check valve 552 is closed, and the first check valve 551 is opened in one direction, so that the liquid or gas in the intermediate chamber flows into the first liquid storage chamber. When the trigger 54 is released, the pressure in the intermediate chamber decreases and is less than the pressure in the inner cavity of the bottle body 522. Therefore, the second check valve 552 is opened in one direction, and the liquid in the inner cavity of the bottle body 522 flows into the intermediate chamber 53 through the second check valve 552, so that the cleaning liquid in the intermediate chamber 53 is automatically replenished to the designed liquid storage volume. Therefore, except for the first time the trigger 54 is pressed, there is no liquid stored in the intermediate chamber and the cleaning liquid cannot be pumped out. In subsequent presses, the intermediate chamber stores cleaning liquid and the cleaning liquid can be pumped out after pressing.

[0150] In some embodiments, continue to refer to Figure 4-Figure 6 As shown, the bottle mouth can be connected with the bottle buckle 523 by a snap-fit ​​structure, and the snap-fit ​​structure seals the liquid in the bottle body 522; the snap-fit ​​structure forms an air passage for air to flow from the outside of the bottle body 522 into the bottle body 522. It can be understood that the bottle body 522 and the bottle buckle 523 can also be connected by threads. In this way, the sealing effect is better.

[0151] It can be understood that the requirements for liquid sealing are lower than those for gas sealing, and the snap-fit ​​structure forming the air channel can achieve sealing of the liquid. The air channel is provided to achieve one-way flow of the liquid in the second liquid storage chamber into the third liquid storage chamber, that is, when the liquid in the second liquid storage chamber flows into the third liquid storage chamber, the gas flows from the outside of the third liquid storage chamber into the third liquid storage chamber. In this way, the liquid can be sealed and the liquid in the second liquid storage chamber can flow smoothly into the third liquid storage chamber.

[0152] In some embodiments, reference Figure 6 As shown, the cleaning liquid container 52 may include:

[0153] A liquid outlet pipe 524, one end of which is connected to the third liquid storage cavity, and the other end of which extends into the second liquid storage cavity and to the bottom of the second liquid storage cavity away from the third liquid storage cavity.

[0154] In this way, the liquid at the bottom of the third liquid storage chamber can also enter the second liquid storage chamber through the liquid outlet pipe 524, so that the liquid in the third liquid storage chamber can be fully utilized.

[0155] In some embodiments, the liquid outlet pipe 524 is inserted into the inner plug 5231, and the inner wall of the inner plug is provided with a mounting protrusion, so that the liquid outlet pipe 524 is installed in the inner plug 5231 by interference fit. In this way, the liquid outlet pipe 524 will not fall off during use. In detail, if the pipeline is blocked and the liquid outlet pipe needs to be cleaned or replaced, the user can pull out the liquid outlet pipe 524 with a little force, because the interference is not large and the material of the inner plug has a certain elasticity.

[0156] In some embodiments, the bottom of the liquid outlet pipe 524 is wedge-shaped, so that the inlet area of ​​the bottom of the liquid outlet pipe 524 is increased and is not easily blocked.

[0157] In some embodiments, a gravity ball (not shown) is fixed to the bottom of the liquid outlet pipe 524, so that the bottom of the liquid outlet pipe 524 moves along with the movement of the gravity ball. In this way, when the water tank is tilted, the gravity ball can always be located in the liquid, that is, the tilt of the water tank does not affect the liquid outlet.

[0158] In some embodiments, the volume ratio of the cleaning liquid container 52 to the box 51 is less than or equal to 0.1. That is, the volume of the box 51 can be about 10 times that of the cleaning liquid container 52, or a larger multiple. On the one hand, the cleaning liquid needs to be diluted for use, and the amount used is small. If the setting is smaller, the volume of the whole machine can be reduced. On the other hand, the user generally fills the box 51 with water first, and then puts in the cleaning liquid container 52. If the cleaning liquid container 52 is too large, the water will overflow.

[0159] In some embodiments, reference Figure 4 and Fig.16 As shown, the water tank 50 may further include:

[0160] The intermediate bin fixing seat 56 is detachably connected to the opening of the cleaning liquid container 52 to expose the opening; the intermediate bin 53 is installed on the intermediate bin fixing seat 56, and the components that are interconnected between the intermediate bin 53 and the cleaning liquid container 52 pass through the intermediate bin fixing seat 56.

[0161] By means of the intermediate bin fixing seat 56, there is no need to set a complicated connection structure on the intermediate bin 53, which can not only better fix the intermediate bin 53 but also simplify the structure of the intermediate bin 53. Moreover, even if the cleaning liquid container 52 is not provided with a bottle buckle 523, a good connection between the intermediate bin 53 and the cleaning liquid container 52 can be achieved, and the liquid flow path can be sealed.

[0162] In addition, the intermediate compartment fixing seat 56 also serves to fix the cleaning liquid container 52 to the water tank cover 57. The water tank cover 57 is described below.

[0163] In some embodiments, continue to refer to Figure 4 and Fig.16 , the water tank 50 may further include:

[0164] The intermediate bin fixing seat 56 is detachably connected to the bottle buckle 523 to expose the inner plug 5231 of the bottle buckle 523; the intermediate bin 53 is installed on the intermediate bin fixing seat 56, and the components interconnected between the intermediate bin 53 and the cleaning liquid container 52 pass through the intermediate bin fixing seat 56.

[0165] Without limitation, in a specific implementation, the cleaning liquid container 52 includes a bottle body 522 and a bottle buckle 523 , and therefore, the intermediate bin fixing seat 56 can be directly fixed on the bottle buckle 523 .

[0166] In some embodiments, reference Fig.12 and Fig.16 As shown, the intermediate bin fixing seat 56 and the bottle buckle 523 can be connected via a rotating snap-fit ​​structure.

[0167] It is understandable that the rotary clamping structure can achieve both a firm connection and a quick connection and disassembly. Therefore, the rotary clamping structure can achieve a quick connection and disassembly of the cleaning liquid container 52 and the intermediate bin fixing seat 56.

[0168] Specifically, the rotational locking structure may include a locking groove 561 located on the intermediate bin fixing seat 56 and a locking strip 5232 located on the bottle buckle 523 .

[0169] In some embodiments, reference Figure 3 and Figure 4 As shown, the water tank 50 may further include:

[0170] The water tank cover 57, the cleaning liquid container 52 and the intermediate bin 53 are both mounted on the water tank cover 57 via the intermediate bin fixing seat 56, and the intermediate bin fixing seat 56 is fixedly connected to the water tank cover 57 via threaded fasteners.

[0171] That is, the cleaning liquid container 52 and the intermediate bin 53 are mounted on the water tank cover 57 through the intermediate bin fixing seat 56. It is obviously more convenient to install, disassemble or overhaul the cleaning liquid container 52 and the intermediate bin 53 on the water tank cover 57 than to install, disassemble or overhaul them in the box body 51. Therefore, the structure of the water tank 50 is simplified and the operation is also simpler.

[0172] Specifically, the intermediate bin 53 is located above the water tank cover 57 to facilitate the operation of the trigger 54. The first connecting portion 5324 of the intermediate bin 53 passes downward through the water tank cover 57 and the intermediate bin fixing seat 56 to be connected to the cleaning liquid container 52, and the first end of the intermediate bin 53, i.e., the end where the first check valve 551 is installed, passes through the water tank cover 57 and the intermediate bin fixing seat 56 to communicate with the first liquid storage chamber.

[0173] Alternatively, the intermediate bin 53 is located between the water tank cover 57 and the intermediate bin fixing seat 56, and the trigger 54 protrudes from the water tank cover 57 to facilitate the operation of the trigger 54. The first connecting portion 5324 of the intermediate bin 53 passes downward through the intermediate bin fixing seat 56 and is connected to the cleaning liquid container 52. The first end of the intermediate bin 53, i.e., the end where the first check valve 551 is installed, passes through the intermediate bin fixing seat 56 and is connected to the first liquid storage chamber.

[0174] In any case, the intermediate bin fixing base 56 is provided with a first through hole 562 for connecting and fixing with the water tank cover 57, and is also provided with a second through hole 563 for the first end of the intermediate bin 53 to pass through. The first through hole 562 is used for screws to pass through, so that the intermediate bin fixing base 56 is connected and fixed to the water tank cover 57 by screws.

[0175] The present application also provides a cleaning device, referring to Figure 1 As shown, the cleaning device comprises:

[0176] A handle 10, comprising a gripping end for human hand gripping and an opposite working end;

[0177] A floor brush assembly 20 connected to the working end of the handle 10;

[0178] A motor assembly 30 mounted on the handle 10;

[0179] And the water tank 50 described in the first embodiment.

[0180] In some embodiments, the handle is provided with a slot or a protrusion for installing the water tank 50, and the water tank is inserted into the handle; or, the handle is provided with an installation cavity for installing the water tank 50, and the installation cavity is provided with an opening to expose the trigger 54.

[0181] The cleaning device of the embodiment of the present application sets the cleaning liquid container 52 in the box body 51 of the water tank 50, and there is no need to add additional cleaning liquid. The intermediate compartment 53 and the trigger 54 are also provided, so that the cleaning liquid can be added in a relatively quantitative manner and the operation is simple.

[0182] It should be understood that the above embodiments are exemplary and are not intended to include all possible implementations included in the claims. Various modifications and changes may be made on the basis of the above embodiments without departing from the scope of the present application. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form other embodiments of the present application that may not be explicitly described. Therefore, the above embodiments only express several implementations of the present application and do not limit the scope of protection of the patent of this application.

Claims

1. A water tank (50) for cleaning equipment, characterized in that: include: The box body (51) has a first liquid storage chamber; A cleaning liquid container (52) having a second liquid storage chamber; The intermediate chamber (53) comprises a third liquid storage chamber, wherein the third liquid storage chamber comprises a first end connected to the first liquid storage chamber and a second end connected to the second liquid storage chamber; the first end and the second end are both provided with a check valve, so that the liquid in the second liquid storage chamber flows into the third liquid storage chamber in one direction, and then flows into the first liquid storage chamber in one direction; The trigger (54) is configured such that when the trigger (54) is pressed, the pressure in the third liquid storage chamber increases, and the first check valve (551) at the first end is opened to allow liquid to flow into the first liquid storage chamber in a unidirectional manner.

2. The water tank (50) for cleaning equipment according to claim 1, characterized in that: The wall of the intermediate chamber (53) corresponding to the trigger (54) is elastic so as to be squeezed and deformed when the trigger (54) is pressed, thereby increasing the pressure of the third liquid storage chamber.

3. The water tank (50) for cleaning equipment according to claim 2, characterized in that: The intermediate chamber (53) comprises a chamber body (532) and a chamber cover (533), and the chamber body (532) and the chamber cover (533) are combined to form the third liquid storage chamber; the chamber cover (533) is elastic, and the outer wall of the chamber cover (533) abuts against the trigger (54) or forms the trigger (54).

4. The water tank (50) for cleaning equipment according to claim 3, characterized in that: The third liquid storage chamber includes a first sub-chamber located in the chamber body (532) and a second sub-chamber located in the chamber cover (533); the second sub-chamber is formed by a portion of the chamber wall at one end opposite to the chamber body (532) protruding outward, and the protruding outer wall of the second sub-chamber is the trigger (54).

5. The water tank (50) for cleaning equipment according to claim 4, characterized in that: The second sub-cavity comprises two cavities distributed along a first direction connected to each other, and the cross-sectional areas of the two cavities gradually decrease from one end where the two cavities are connected to each other end; the first direction is the direction in which the bin cover (533) and the bin body (532) are closed.

6. The water tank (50) for cleaning equipment according to claim 2, characterized in that: The bottom wall of the third liquid storage chamber is provided with at least one limiting protrusion (5321) corresponding to the trigger (54) to limit the pressing stroke of the trigger (54).

7. The water tank (50) for cleaning equipment according to claim 2, characterized in that: At least one sound-generating component is disposed in the third liquid storage chamber to emit a prompt sound after the trigger (54) is pressed into place; and a sound-generating component groove (5322) for mounting the sound-generating component is disposed on the bottom wall of the third liquid storage chamber.

8. The water tank (50) for cleaning equipment according to any one of claims 1 to 7, characterized in that: A groove extending from the first end to the second end is provided in the third liquid storage chamber to guide the liquid in the third liquid storage chamber to flow into the first liquid storage chamber; Preferably, the bottom of the warehouse body (532) is provided with a first connecting portion (5324) protruding toward the cleaning liquid container (52), and the cleaning liquid container (52) is provided with an opening that matches the first connecting portion (5324), and the opening and the first connecting portion (5324) are sealed and connected; Preferably, the first check valve (551) extends outward from the bottom of the bin body (532) so as to input the liquid in the third liquid storage chamber into the first liquid storage chamber through the first check valve (551); Preferably, the first check valve (551) comprises a joint (5511) and a valve body (5512) that is deformable under pressure, and the joint (5511) is installed on a passage of the tank body (532) leading to the first liquid storage chamber; Preferably, the valve body (5512) may be made of a flexible material; Preferably, at least one side surface of the valve body (5512) is an inclined surface (5513), so that the cross section of the inner cavity of the valve body (5512) gradually decreases from the joint (5511) to a direction away from the joint (5511); Preferably, the cross-sectional shape of the trigger (54) is circular, and the first connecting portion (5324) protrudes outward along the center line of the circle; Preferably, the cleaning liquid container (52) is located in the first liquid storage cavity, and the cleaning liquid container (52) comprises: A bottle body (522), the inner cavity of which is the second liquid storage cavity, and the mouth of the bottle body (522) faces the intermediate compartment (53); A bottle buckle (523) buckled on the bottle mouth, comprising an inner plug (5231) extending into the second liquid storage cavity through the bottle mouth, and a second check valve (552) at the second end is arranged on the inner plug (5231); Preferably, the inner plug (5231) includes a stepped hole, and the stepped hole includes: a first hole and a second hole, the first hole has a larger diameter than the second hole, and the first hole is farther away from the second liquid storage cavity than the second hole; The second check valve (552) comprises: A base (5521) is located in the first hole; the base (5521) includes a third hole in the same direction as the second hole; A blocking body (5522) is located in the third hole. The blocking body (5522) cooperates with the second hole and can block the second hole to block the water flow when the pressure of the third liquid storage chamber is greater than or equal to that of the second liquid storage chamber. The outer diameter of the blocking body (5522) is greater than the aperture of the second hole. The elastic arm (5523) is located between the base (5521) and the blocking body (5522), and connects the blocking body (5522) to the base (5521); when the pressure of the second liquid storage chamber is greater than that of the third liquid storage chamber, the elastic arm (5522) is deformed to lift the blocking body (5522) and open the second hole; Preferably, the blocking body is a cylinder, and the elastic arm includes at least two arc-shaped strips evenly distributed around the cylinder, and two ends of the arc-shaped strips are respectively connected to the base and the blocking body; Preferably, the bottle mouth is snap-connected with the bottle buckle (523) via a snap-fit ​​structure, and the snap-fit ​​structure seals the liquid in the bottle body (522); the snap-fit ​​structure forms an air passage for air to flow from the outside of the bottle body (522) into the bottle body (522); Preferably, the cleaning liquid container (52) comprises: a liquid outlet pipe (524), one end of which is connected to the third liquid storage cavity, and the other end of which extends into the second liquid storage cavity and to the bottom of the second liquid storage cavity away from the third liquid storage cavity; Preferably, the liquid outlet pipe (524) is inserted into the inner plug (5231), and the inner wall of the inner plug (5231) is provided with a mounting protrusion, so that the liquid outlet pipe (524) is installed on the inner plug (5231) by interference fit; Preferably, the bottom of the liquid outlet pipe 524 is in a wedge shape; Preferably, a gravity ball is fixed to the bottom of the liquid outlet pipe (524), so that the bottom of the liquid outlet pipe (524) moves following the movement of the gravity ball; Preferably, the volume ratio of the cleaning liquid container (52) to the box body (51) is less than or equal to 0.1; Preferably, the water tank (50) for cleaning equipment further comprises: an intermediate bin fixing seat (56) detachably connected to the opening of the cleaning liquid container (52) and exposing the opening; the intermediate bin (53) is mounted on the intermediate bin fixing seat (56), and components communicating between the intermediate bin (53) and the cleaning liquid container (52) pass through the intermediate bin fixing seat (56); Preferably, the water tank (50) for cleaning equipment further comprises: an intermediate bin fixing seat (56) which is detachably connected to the bottle buckle (523) and allows the inner plug (5231) of the bottle buckle (523) to be exposed; the intermediate bin (53) is mounted on the intermediate bin fixing seat (56), and components communicating between the intermediate bin (53) and the cleaning liquid container (52) pass through the intermediate bin fixing seat (56); Preferably, the intermediate bin fixing seat (56) and the bottle buckle (523) are connected via a rotating snap-fit ​​structure; Preferably, the water tank (50) for cleaning equipment further comprises: The water tank cover (57) is provided with a cleaning liquid container (52) and an intermediate bin (53) which are both mounted on the water tank cover (57) via an intermediate bin fixing seat (56), and the intermediate bin fixing seat (56) is fixedly connected to the water tank cover (57) via threaded fasteners.

9. A cleaning device, characterized in that: A water tank (50) for cleaning equipment comprising any one of claims 1-8.

10. The cleaning device according to claim 9, characterized in that The cleaning device also includes: A handle (10) comprising a gripping end for human hand gripping and an opposite working end; a water tank (50) is mounted on the handle (10) and is relatively close to the gripping end; The handle is provided with a slot or a protrusion for installing the water tank (50), and the water tank is inserted into the handle; or, the handle is provided with an installation cavity for installing the water tank (50), and the installation cavity is provided with an opening for exposing the trigger (54).

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