Water tank assembly and ground cleaning device

Abstract

The invention discloses a water tank assembly which comprises a water tank, mop cloth and a water stopping device, the water tank is provided with a water tank hole, the water stopping device comprises a standing water stopping component and / or a hanging water stopping component, and the standing water stopping component enables the water tank hole of the water tank assembly to stop water discharging in a standing or quasi-standing state. The suspension water stop component enables the water tank hole of the water tank assembly to stop discharging water when the water tank hole is suspended. The technical problem that in the prior art, water in the mop module water tank cannot be automatically stopped is solved.

Description

[0001] This application is a divisional application of a Chinese invention patent with the application number 202011140351.4, the application date of October 22, 2020, and the title of "A water tank assembly". Technical Field

[0002] The present invention relates to the field of cleaning tools, and more particularly, to a water tank assembly. Background Art

[0003] With the continuous development of automated production and productivity, great progress has been made in household appliances and tools. There are various automated tools and supplies in all fields of people's lives. When the supplies or tools have automated components to save labor costs and time, the purpose of fully optimizing people's lives and production is achieved.

[0004] Currently, when the existing floor cleaning device is mopping the floor, the user often needs to actively install or remove the water tank. Otherwise, the stored water in the water tank will excessively soak the mop of the floor cleaning device, resulting in a large amount of water overflow, polluting the floor, and even damaging the wooden floor.

[0005] In response to the above problems, no effective solution has been proposed yet. Summary of the Invention

[0006] Embodiments of the present invention provide a water tank assembly to at least solve the technical problem that the water in the water tank of the mop module cannot be stopped automatically in the prior art.

[0007] According to one aspect of the embodiments of the present invention, a water tank assembly is provided, which includes a water tank, a mop, and a water stop device. The water tank has a water tank hole. The water stop device includes a static water stop member and / or a hanging water stop member. The static water stop member stops the water from flowing out of the water tank hole of the water tank assembly in a static or quasi-static state, and the hanging water stop member stops the water from flowing out of the water tank hole of the water tank assembly when it is hanging.

[0008] Furthermore, the water tank assembly further includes a water tank bottom cover. The water tank, the water tank bottom cover, and the mop are connected in sequence from top to bottom. A water passage is formed between the water tank bottom cover and the water tank.

[0009] Furthermore, the static water stop member includes an air inlet pipeline and an air inlet hole. The air inlet hole is provided on the water tank bottom cover. The air inlet pipeline is spaced from the water in the water tank by the water in the water tank. The mop absorbs water and expands to block the air inlet pipeline, thereby stopping the water from flowing through the water passage.

[0010] Furthermore, the air inlet pipeline is provided in the water tank. The air inlet pipeline communicates with the air in the water tank, and the water passage communicates with the water in the water tank.

[0011] Further, the air inlet is spaced apart from the upper surface of the mop by a certain distance. In the water stop state, the surface of the mop blocks the air inlet, and one or more radial grooves centered on the air inlet are provided on the lower surface of the bottom cover of the water tank around the air inlet.

[0012] Further, the air inlet pipe is fixedly arranged at the bottom of the water tank, one end extends to the inner upper wall of the water tank and is spaced apart from the upper wall by a certain distance, and the other end extends into the bottom cover of the water tank and communicates with the air inlet.

[0013] Further, a upward recess is provided on the inner upper wall of the water tank corresponding to the part of the air inlet pipe. The recess is inserted into the end of the air inlet pipe with a clearance fit, and the end face of the mating end of the air inlet pipe is not in contact with the bottom surface of the recess.

[0014] Further, the hanging water stop member includes a water outlet hole, and the water outlet hole communicates with the water tank hole through the water passing channel. The horizontal positions of the hanging water outlet holes are all higher than the horizontal positions of the hanging water tank holes.

[0015] Further, the water outlet hole is at least one and is provided through the bottom cover of the water tank. When the water tank assembly is hung, the highest point of the water passing channel is higher than each of the one or more water outlet holes.

[0016] Further, the water passing channel has at least two horizontal channels and a vertical channel. The horizontal channels are communicated through the vertical channel. When the water tank assembly is hung, the water tank hole is located in the horizontal channel at the lowest horizontal position, and the plurality of water outlet holes are distributed in the horizontal channels at the remaining horizontal positions.

[0017] In the embodiment of the present invention, an air inlet pipe, an air inlet hole, a water passing channel, and a water tank assembly are adopted. By setting the air pressure sealing effect between the water tank air inlet hole and the mop of the floor cleaning device, when the above floor cleaning device is placed flat, the water in the water tank body will not overflow and cause pollution.

[0018] When the floor cleaning device is in a hanging state, no matter whether the water volume control knob is in the large water or small water gear, no water will flow out of the water outlet holes of the water passing channel. Since the position of the water tank hole is lower than the positions of the water outlet hole and the air inlet hole, during the hanging process, the water will not flow up to the water outlet hole. At the same time, due to the effect of the wet mop, the air in the water tank body is closed, achieving the function of hanging water stop, and the water in the water tank body will not overflow and cause pollution.

[0019] One end of the intake pipeline contacts the upper surface of the water tank mop, and the other end of the intake pipeline does not contact the upper inner surface of the upper water tank shell. The intake pipeline connects the inside of the water tank main body with the water tank mop, and can continuously obtain air from the environment, solving the technical problem that there is no technology for automatically releasing water or stopping water in the water tank body in the current existing technology.

[0020] An opening groove is provided on the upper extending end surface of the other end of the intake pipeline, increasing the area of air entering the water tank main body, and at the same time preventing impurities in the water in the water tank main body from blocking the intake pipeline or preventing a water film from forming on the air inlet hole.

[0021] At the same time, when the floor cleaning device is placed flat on the ground, when the mop lacks moisture, the mop is infiltrated by using structures such as the water outlet holes, achieving the technical effect of being able to clean the ground at any time and solving the technical problem of being unable to automatically stop water for the floor cleaning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0023] Figure 1 is a schematic cross-sectional view of a water tank assembly according to an embodiment of the present invention;

[0024] Figure 2 is a schematic bottom view of a water tank assembly according to an embodiment of the present invention;

[0025] Figure 3 is a schematic overall view of a floor cleaning device having a water tank assembly according to an embodiment of the present invention;

[0026] Figure 4 is a schematic diagram of water volume control of a water tank assembly according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Figures 1 to 2 This is an optional embodiment of the present invention. According to a specific implementation manner of the present invention, a water tank assembly is provided, which includes a water tank, a mop 18, and a water stop device. The water tank has a water tank hole 15. The water stop device includes a static water stop member and / or a hanging water stop member. The static water stop member stops the water from flowing out of the water tank hole 15 of the water tank assembly in a static or quasi-static state, and the hanging water stop member stops the water from flowing out of the water tank hole 15 of the water tank assembly when it is hung.

[0031] The water tank assembly further includes a water tank bottom cover 13. The water tank, the water tank bottom cover 13, and the mop 18 are connected in sequence from top to bottom. A water passage 53 is formed between the water tank bottom cover 13 and the water tank.

[0032] The static water stop member includes an air inlet pipe 51 and an air inlet hole 52. The air inlet hole 52 is provided on the water tank bottom cover 13. The air inlet pipe 51 is spaced from the water in the water tank by the water passage 53. The mop 18 absorbs water and expands to block the air inlet pipe 51, thereby stopping the water from flowing through the water passage 53.

[0033] The air inlet pipe 51 is provided in the water tank. The air inlet pipe 51 communicates with the air in the water tank, and the water passage 53 communicates with the water in the water tank.

[0034] The air inlet hole 52 is spaced from the upper surface of the mop 18 by a certain distance. In the water stop state, the surface of the mop 18 blocks the air inlet hole 52. One or more radial grooves centered on the air inlet hole 52 are provided around the air inlet hole 52 on the lower surface of the water tank bottom cover 13.

[0035] The intake air pipeline 51 is fixedly arranged at the bottom of the water tank, with one end extending to the inner upper wall of the water tank and spaced a certain distance from the upper wall, and the other end extending into the bottom cover 13 of the water tank and communicating with the air inlet hole 52.

[0036] The inner upper wall of the water tank is provided with an upward concave part corresponding to the part of the intake air pipeline 51. The concave part is inserted into the intake air pipeline 51 at one end with a clearance fit, and the end face of the mating end of the intake air pipeline 51 is not in contact with the bottom surface of the concave part.

[0037] The hanging water stop member includes a water outlet hole 54. The water outlet hole 54 is communicated with the water tank hole 15 through the water passing channel 53. The horizontal positions of the water outlet holes 54 in suspension are all higher than the horizontal positions of the water tank holes 15 in suspension.

[0038] The water outlet hole 54 is at least one and is provided through the bottom cover 13 of the water tank. When the water tank assembly is suspended, the highest point of the water passing channel 53 is higher than each of the one or more water outlet holes 54.

[0039] The water passing channel 53 has at least two horizontal channels and a vertical channel. The horizontal channels are communicated through the vertical channel. When the water tank assembly is suspended, the water tank hole 15 is located in the horizontal channel at the lowest horizontal position, and the plurality of water outlet holes 54 are distributed in the horizontal channels at the remaining horizontal positions.

[0040] According to another specific embodiment of the present invention, another water tank assembly is provided, including: an air inlet hole 52, a water outlet hole 54, a water passing channel 53, an intake air pipeline 51, a water tank assembly 1. The water tank upper shell 11, the water tank lower shell 12, the water tank bottom cover 13, and the water tank mop 18 are connected in sequence from top to bottom to form the water tank assembly 1. A water passing channel 53 is formed between the water tank bottom cover 13 and the water tank lower shell 12. The intake air pipeline 51 communicates the inside of the water tank main body with the water tank mop 18. The water tank bottom cover 13 is provided with at least one through water outlet hole 54. A plurality of through water tank holes 15 are arranged on the lower surface of the water tank lower shell 12 corresponding to the position of the water volume control assembly. An air inlet hole 52 protrudes from the lower outer surface of the water tank lower shell 12. The horizontal positions of the air inlet hole 52 and the water outlet holes 54 in suspension are all higher than the horizontal positions of the water tank holes 15 in suspension. The intake air pipeline 51 is arranged inside the water tank assembly 1. One end of the intake air pipeline 51 extends downward and non - communicatively passes through the water tank bottom cover 13 and contacts the upper surface of the water tank mop 18. The other end of the intake air pipeline 51 extends upward and is not in contact with the upper inner surface of the water tank upper shell 11.

[0041] The water tank assembly includes a water tank upper shell 11, a water tank lower shell 12, a water tank bottom cover 13, and a water tank mop 18. The water tank upper shell 11 and the water tank lower shell 12 are snap-fitted and sealed together to form a hollow water tank body. The water tank bottom cover 13 is detachably mounted on the lower outer surface of the water tank lower shell 12, and the water tank mop 18 is detachably mounted on the lower surface of the water tank bottom cover 13.

[0042] The lower extending end face of the air inlet pipeline 51 is provided with an air inlet hole 52. The air inlet pipeline 51 is in the shape of an annular column. One end of the air inlet pipeline 51 extends downward and protrudes from the lower surface of the water tank lower shell 12, and the other end of the air inlet pipeline 51 extends upward and protrudes into the interior of the water tank upper shell 11.

[0043] The water tank upper shell 11 is provided with an upward concave portion corresponding to the air inlet pipeline 51. The concave portion is inserted into the upper extending end of the air inlet pipeline 51 with a clearance fit, and the upper extending end face of the air inlet pipeline 51 is non-contact with the bottom surface of the concave portion of the water tank upper shell 11.

[0044] The upper extending end face of the air inlet pipeline 51 is kept at a distance less than 1 mm from the bottom surface of the concave portion of the water tank upper shell 11.

[0045] The upper extending end face of the air inlet pipeline 51 is kept at a distance of 0.5 mm from the bottom surface of the concave portion of the water tank upper shell 11.

[0046] The upper extending end face of the air inlet pipeline 51 is provided with an opening groove 55. The depth of the opening groove 55 is less than the depth of the concave portion, which is used to increase the area of air entering the water tank body, and at the same time prevent impurities in the water in the water tank body from blocking the air inlet pipeline 51 or prevent the formation of a water film at the air inlet hole. The opening groove 55 can be in the shape of a cross or symmetric notches, or in the shape of serrated protrusions and depressions, which will not be elaborated here.

[0047] The water passing channel 53 is arranged inside the edge of the lower surface of the water tank lower shell 12. The water passing channel 53 can be offset equidistantly corresponding to the shape of the edge of the lower surface of the water tank lower shell 12 and set as the main path, or further offset equidistantly inward to set multiple main paths, and the multiple main paths are connected by branch paths.

[0048] The water tank bottom cover 13 is provided with at least one through water outlet hole 54. The water passing channel is connected to the water outlet hole 54 through the water passing channel 53, and the water passing channel 53 has a horizontal main path and a vertical branch path.

[0049] The water outlet holes 54 are evenly distributed along one or more horizontal main paths of the water passing channel 53, and the air inlet hole 52 and the water outlet holes 54 are located at the same horizontal position along the horizontal main path of the water passing channel 53.

[0050] The air inlet hole 52 extends non-connectively through the water tank bottom cover 13 and is in contact with the upper surface of the water tank mop 18, and the air inlet hole 52 is connected to the air inlet pipeline 51.

[0051] The intake holes 52 are multiple, and the multiple intake holes 52 are connected to the intake pipeline 51 through a triangular cross-section channel, or the intake holes are respectively connected to the intake pipeline 51.

[0052] A water passing groove is formed by partial concave of the lower outer surface of the lower shell 12 of the water tank, and a bottom cover water passing groove is formed by concave of the water tank bottom cover 13 corresponding to the position of the water passing groove, so as to increase the cross-sectional area of the water passing channel 53, thereby improving the drainage volume.

[0053] A plurality of through water tank holes 15 are arranged on the lower surface of the lower shell 12 of the water tank corresponding to the position of the water volume control assembly, and the water outlet hole 54 can be connected to the water tank holes 15 through the water passing channel 53, so as to discharge the water in the water tank main body to the water tank mop 18.

[0054] The water tank mop 18 is made of a water-absorbing fabric, and the bottom end of the intake hole 52 is closely attached to the water-absorbing fabric of the water tank mop 18. After the water-absorbing fabric absorbs water, it expands and closes the intake hole 52.

[0055] Specifically, when the user uses the embodiment of the present invention, it is necessary to place the floor cleaning device flat, and when the floor cleaning device is placed flat, the water in the water tank body will not overflow and cause pollution. A water tank body is provided for storing the cleaning water required for the mop in the floor cleaning device, and then a water tank intake hole 52 is provided for connecting the air pressure in the water tank body with the external atmospheric pressure, so that under the condition that the internal pressure and the external pressure are the same, the water in the water tank body only automatically sinks and wets the mop of the floor cleaning device under the action of gravity. Therefore, when the water tank intake hole 52 is blocked by the wet mop, the water tank intake hole 52 cannot obtain the external atmospheric pressure, so the water in the water tank will not drop to the mop of the floor cleaning device under the action of gravity, and a relatively vacuum state is formed in the space of the water tank body.

[0056] Optionally, a circular recess is provided in the upper part of the water tank body, and the circular recess and the water tank intake channel are in clearance fit to form an upper connection structure for inputting the air entering through the water tank intake hole 52 into the water tank body through the intake channel.

[0057] Specifically, the above water tank body is used to hold the cleaning water, and the water tank intake hole 52, as the key mechanism for whether the cleaning water stops sinking to the mop of the floor cleaning device, needs to be an upper connection structure with the water tank intake hole 52. The upper connection structure can be a gap not greater than 1 mm, which is integrally recessed and formed by the water tank body to avoid damage when the floor cleaning device cleans the floor. The gap between the water tank intake hole 52 with the upper connection structure and the water tank body is used to input the air entering through the water tank intake hole 52 into the water tank body.

[0058] In order to enable the air inhaled by the intake pipe 51 from the intake hole to flow through the air passage to the water tank body, a gap 1 mm away from the top wall of the water tank body needs to be provided. This gap serves as a communication passage for the air to flow between the air passage and the water tank body, so as to make the internal and external air pressures the same.

[0059] Optionally, a rubber sealing ring with the same outer diameter as the water tank intake hole 52 is installed at the bottom of the water tank intake hole 52, which is used to prevent external air from entering the water tank intake hole 52 when airtight.

[0060] Specifically, in order to make the water tank intake hole 52 in a sealed state when air enters and exits, except for the influence of the mop of the floor cleaning device, a rubber sealing ring can be installed at the bottom end of the water tank intake hole 52. This rubber sealing ring can be adhesively connected to the bottom end of the water tank intake hole 52, and is used to prevent external air from entering the water tank intake hole 52 after the airtight effect is generated when the mop in the floor cleaning device is wetted, so as to avoid incomplete water stoppage.

[0061] Optionally, the mop of the floor cleaning device is adhesively connected to the bottom of the water tank body through Velcro, where the Velcro is a square double-sided adhesive sticker.

[0062] Optionally, the water tank intake hole 52 is in contact with the mop of the floor cleaning device.

[0063] Specifically, the mop of the floor cleaning device can be made of a water-absorbent textile. The bottom of the water tank body is adhesively connected to the mop of the floor cleaning device through Velcro. Based on the above connection method, at the air intake of the water tank intake hole 52, that is, the bottom end of the water tank intake hole 52 forms a tightly fitting relationship with the mop of the floor cleaning device made of the above-mentioned water-absorbent textile. Then, when the water-absorbent textile absorbs water and expands, the air intake of the water tank intake hole 52 is closed, achieving the technical effect of water stoppage.

[0064] In addition, according to the implementation method of the embodiment of the present invention, when the knob switch of the water volume control module is in the large water or small water gear, and the external floor cleaning device is stationary and flat on the ground, the prerequisite is that the floor cleaning device is stationary and flat. When the user forgets to turn off the knob to stop water, the water outlet hole 54 will continuously discharge water. For the water tank to discharge water, external air needs to be provided to ensure that the air pressure in the water tank is the same as the external air pressure. When the amount of water discharged from the water tank is large enough and wets the mop, the water on the mop will naturally close and seal the intake hole 52, so that the water tank cannot obtain the air pressure difference supply, thereby controlling the water tank body to stop discharging water within a certain period of time. Therefore, the function of the external floor cleaning device to stop water when placed flat is realized. In addition, according to the shrinkage and water absorption of the mop, it is ensured that the water volume will not overflow outside the mop during the water discharge of the water tank body, and the ground will not be polluted.

[0065] In addition, when the floor cleaning device is not in use, through the action of horizontal water stop and the air inlet hole, the user can block the water outlet hole 54 when hanging the mop to limit the continuous outflow of water in the water tank.

[0066] Specifically, at least one air inlet hole is convexly provided on the lower outer surface of the lower shell 12 of the water tank. The air inlet hole extends non-communicatively through the bottom cover 13 of the water tank and contacts the upper surface of the water tank mop 18. The air inlet hole is communicated with the air inlet pipeline 51, which will not be further elaborated here.

[0067] The air inlet hole 52 is used for sucking and closing air through the water tank. Therefore, the air inlet hole 52 controls whether the water in the water tank can reach the mop of the floor cleaning device. Then, the air inlet hole 52 can accurately obtain the wetness of the mop. That is, only after all the air inlet holes 52 are closed, the air inlet hole 52 of the water tank will not enter the external air, and then a relatively vacuum environment is formed in the water tank body, so that the water in the water tank will not overflow due to hanging the floor cleaning device.

[0068] In order to make the air inlet hole judge the dryness and wetness of the mop in the mopping module more accurately, multiple air inlet holes can be provided and evenly distributed at the bottom of the water tank body at the same time. Then, when the bottom of the water tank body adheres to the mop, all the air inlet holes will be in a closed and open state according to the dryness and wetness of the mop. Therefore, only when the mop is completely wetted, it is possible to close all the air inlet holes, making the space in the water tank body in a relatively vacuum state, and preventing the water in the water tank body from overflowing onto the mop, achieving a better water stop effect.

[0069] A plurality of through water tank holes 15 are provided on the lower surface of the lower shell 12 of the water tank corresponding to the position of the water volume control component. The water outlet holes 54 are evenly distributed along the horizontal main path of the water passing channel 53, and the air inlet holes 52 are evenly distributed along the other horizontal main path of the water passing channel 53, or the air inlet holes and the water outlet holes 54 are located at the same horizontal position along the horizontal main path of the water passing channel 53. The horizontal positions of the air inlet holes 52 and the water outlet holes 54 are both higher than the horizontal position of the water tank holes 15 of the lower shell 12 of the water tank.

[0070] In addition, during the use of the embodiment of the present invention, when the externally hung floor cleaning device is in a hanging state, no matter whether the water tank water volume control knob is in the large water or small water gear, the water outlet hole 54 of the water passing channel 53 will not flow out water. As shown in the figure, the position of the water tank hole 15 is lower than the position of the water outlet hole 54. Due to the action of gravity, the water will not flow up to the water outlet hole 54 during the hanging process. At the same time, due to the action of the wet mop, the air in the water tank body is closed, achieving the effect of water stop.

[0071] In addition, during the process of hanging the floor cleaning device, the water volume in the water tank of the floor cleaning device is controlled by the interaction between the mop and the air inlet hole 52, so that the user can block the air inlet hole 52 when hanging the mop to limit the continuous outflow of water in the water tank. At the same time, when the mop lacks moisture, structures such as the water outlet hole 54 are used to moisten the mop, achieving the technical effect of being able to clean the floor at any time.

[0072] Optionally, the water outlet holes 54 are evenly distributed at equal intervals on one side of the floor cleaning device. Among them, each hole position of the water outlet hole 54 is a perfect circle, and the center distance between each adjacent water outlet hole 54 is 1 cm.

[0073] Optionally, the air inlet holes 52 are evenly distributed at equal intervals on one side of the floor cleaning device. Among them, each hole position of the air inlet hole 52 is a perfect circle, and the center distance between each adjacent water outlet hole 54 is 1 cm.

[0074] Specifically, in order to achieve the purpose of transmitting and closing the air pressure to the water tank body in the embodiments of the present invention, the exhaust pipeline is communicated with the water tank body. The air inlet hole 52 is located between the mop and the bottom of the water tank body, used to directly contact the mop, and inhale or close the air according to the dryness or wetness of the mop. Furthermore, the air entering the intake pipeline 51 through the air inlet hole 52 can also reach the water tank body through the communication path. When the air inlet hole can inhale air, the air pressure in the water tank body is the same as the external air pressure. At this time, the water in the water tank body can flow into the mop under the action of gravity to moisten the mop. However, when the mop is fully moistened, it will block the air inlet hole, so the air inhalation at the air inlet hole is closed, that is, no external air is inhaled. Then the air in the air duct and the water tank body will be in a relatively vacuum air pressure state, and the water in the water tank body will no longer flow out under the influence of gravity, that is, the water in the water tank body will be kept in the body according to the air closing situation, achieving the technical effect of water stop.

[0075] Through the above steps, the technical effect of automatically stopping water when the floor cleaning device is placed flat can be achieved. At the same time, when the mop lacks moisture, structures such as the water outlet hole are used to moisten the mop, achieving the technical effect of being able to clean the floor at any time.

[0076] According to another aspect of the embodiments of the present invention, a floor cleaning device is provided. The floor cleaning device includes the above-mentioned water stop device. The floor cleaning device further includes a water tank assembly 1, a water volume control knob assembly 2, a mop cleaning assembly 3, and a pedal linkage assembly 4. The mop cleaning assembly 3 is arranged at one end of the upper part of the water tank assembly 1, and the water volume control knob assembly 2 and the pedal linkage assembly 4 are symmetrically arranged on both sides of the other end of the water tank assembly 1. The water stop device is communicatively arranged in the water tank assembly 1.

[0077] The water tank body is used for storing water. Therefore, the upper shell and the lower shell of the water tank are rigidly waterproofly connected, and the joint can be bonded or hot-pressed. Specifically, which connection method is adopted is not specifically limited here.

[0078] In the water volume control knob assembly 2, an annular columnar water tank lower bracket 14 is integrally arranged on the lower inner surface of the water tank lower shell 12. A plurality of through water tank holes 15 are arranged near the bottom shell of the water tank lower shell 12 and close to the water tank lower bracket 14. The knob rod 23 is rotatably arranged through the water tank lower shell 12. The knob rod 23 can be rotated through the knob upper cover 21. An annular water control plate is integrally arranged on the outer side surface of the lower end of the knob rod 23. The annular water control plate is provided with a through water control hole 24. The water control hole 24 cooperates with the water tank hole 15 to regulate the water volume.

[0079] There are two water tank holes 15. The two water tank holes 15 are circumferentially distributed along the water tank lower bracket 14 and respectively correspond to two different gear position marking positions. The two water tank holes 15 have different cross-sectional areas. Preferably, the cross-sectional area of the second water tank hole 15 is 2 to 4 times that of the first water tank hole 15. The concave parts on the side wall of the rotary accommodation groove are symmetrically arranged and are respectively arranged at the corresponding positions of each gear position marking. The cross-sectional area of the water control hole 24 is greater than or equal to that of the second water tank hole 15.

[0080] A water passing groove is formed by partially concave the lower outer surface of the water tank lower shell 12. The water tank bottom cover 13 is detachably covered and installed on the lower outer surface of the water tank lower shell 12. A water passing channel is formed between the water tank bottom cover 13 and the water passing groove. The annular water control plate of the knob rod 23 is located in the water passing channel. The annular water control plate can rotate, displace, and move up and down in the water passing channel.

[0081] When the knob upper cover 21 rotates, the rigidly fixed knob rod 23 rotates to rotate the annular water control plate at the lower end of the knob rod 23, so that the water control hole 24 of the annular water control plate circumferentially displaces with the rotational movement. When the knob is at the zero gear position marking, the water control hole 24 is not communicated with any water tank hole 15. When the knob is at the first gear position marking, the water control hole 24 is communicated with the first water tank hole 15. When the knob is at the second gear position marking, the water control hole 24 is communicated with the second water tank hole 15.

[0082] The annular water control plate at the lower end of the knob rod 23 is in contact and fit with the water tank lower shell 12. The knob rod 23 realizes an upward acting force all the time by relying on the key spring 27, keeps the knob rod 23 in close fit with the water tank lower shell 12, and ensures that the water tank does not leak. There is one water control hole 24 on the annular water control plate at the lower end of the knob rod 23, and there are two water tank holes 15 on the bottom shell of the water tank lower shell 12. When the knob rotates the gear position, the water control hole 24 is communicated with or not communicated with different water tank holes 15.

[0083] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0084] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A water tank assembly, which includes a water tank, a mop, and a bottom cover of the water tank. The water tank has a water tank hole, and is characterized in that: It further includes a water stop device, and the water stop device includes a hanging water stop member, and the hanging water stop member stops the water outlet of the water tank hole of the water tank assembly when it is hung. Wherein, the water tank, the bottom cover of the water tank, and the mop are connected in sequence from top to bottom, and a water passage is formed between the bottom cover of the water tank and the water tank. Wherein, the hanging water stop member includes a water outlet hole, and the water outlet hole is communicated with the water tank hole through the water passage, and the horizontal positions of the hung water outlet holes are all higher than the horizontal position of the hung water tank hole.

2. The water tank assembly according to claim 1, wherein, The water outlet hole is at least one and is penetrated and arranged on the bottom cover of the water tank. When the water tank assembly is hung, the highest point of the water passage is higher than each of the one or more water outlet holes.

3. The water tank assembly according to claim 2, wherein, The water passage has at least two horizontal passages and a vertical passage, and the horizontal passages are communicated through the vertical passage. When the water tank assembly is hung, the water tank hole is located in the horizontal passage at the lowest horizontal position, and the plurality of water outlet holes are distributed in the horizontal passages at the remaining horizontal positions.

4. The water tank assembly according to claim 1, wherein The water stop device further includes a static water stop member, and the static water stop member stops the water outlet of the water tank hole of the water tank assembly in a static or quasi-static state.

5. The water tank assembly according to claim 4, wherein The static water stop member includes an air inlet pipeline and an air inlet hole. The air inlet hole is arranged on the bottom cover of the water tank. The air inlet pipeline is spaced from the water in the water tank by the water passage. The mop absorbs water and expands to block the air inlet pipeline, so that the water passage stops passing water.

6. The water tank assembly according to claim 5, wherein, The air inlet pipeline is arranged in the water tank, the air inlet pipeline communicates with the air in the water tank, and the water passage communicates with the water in the water tank.

7. The water tank assembly according to claim 5, wherein The air inlet hole is spaced from the upper surface of the mop by a certain distance. In the water stop state, the surface of the mop blocks the air inlet hole, and one or more radial grooves centered on the air inlet hole are arranged around the air inlet hole on the lower surface of the bottom cover of the water tank.

8. The water tank assembly according to claim 5, characterized in that, The air inlet pipeline is fixedly arranged at the bottom of the water tank, one end extends to the inner upper wall of the water tank and is spaced from the upper wall by a certain distance, and the other end extends into the bottom cover of the water tank and is communicated with the air inlet hole.

9. The water tank assembly according to claim 5, wherein A downward recess is provided on the inner upper wall of the water tank corresponding to the air inlet pipeline. The recess is inserted into the air inlet pipeline end with a clearance fit, and the end face of the mating end of the air inlet pipeline is not in contact with the bottom surface of the recess.

10. A floor cleaning device, characterized in that, It includes the water tank assembly according to any one of claims 1 to 9.

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