CN218186647U - Surface cleaning device - Google Patents

Abstract

The utility model provides a surface cleaning device, including the liquid reserve tank and the pump body, the liquid reserve tank has the main cavity room, two at least storages have the vice cavity room of cleaning solution, vice cavity room communicates with the main cavity room respectively, main cavity room and pump body intercommunication are in order to providing the cleaning solution to treating clean surface, the liquid reserve tank still includes the main shutoff component that is used for controlling vice cavity room and outside atmosphere intercommunication, vice cavity room has the confession liquid mouth, supply liquid mouth department to be equipped with the pressure control valve, the negative pressure that the pump body that starts formed in the main cavity room orders about the pressure control valve that corresponds with the vice cavity room of outside atmosphere intercommunication and opens, so that the cleaning solution entering main cavity room in the vice cavity room mixes. This is disclosed through setting up water pump and pressure control valve for the cleaning solution in the auxiliary chamber can get into the main cavity room under atmospheric pressure effect, thereby makes the auxiliary chamber remain stable to the rate of supply of main cavity room, and then makes the main cavity room remain stable to external rate of supply.

Description

Surface cleaning device

Technical Field

The disclosure belongs to the technical field of surface cleaning devices, and particularly provides a surface cleaning device.

Background

The surface cleaning device with the floor mopping function is usually provided with a liquid storage tank, and the liquid storage tank can store clear water or mixed liquid of the clear water and cleaning liquid. The liquid storage tank is equipped with the liquid outlet, and the liquid outlet communicates the pump body. In the working process of the surface cleaning device, the opened pump body can extract the clean water or the mixed liquid in the liquid storage tank and convey the clean water or the mixed liquid to the surface to be cleaned and/or a cleaning assembly of the surface cleaning device, so that the surface cleaning device can mop the surface to be cleaned by utilizing the clean water or the mixed liquid.

At present, multi-chamber liquid storage tanks capable of storing clear water and washing liquid simultaneously appear in the prior art. For example, the application with publication number CN205126107U discloses a water tank assembly of a dust collector, which comprises a water tank and a mixed water tank arranged at the bottom of the water tank, wherein a liner is arranged in the water tank, and the liner and the water tank are both communicated with the mixed water tank through a communication hole. The top of the water tank and the top of the inner container are both provided with a water drain switch, the water tank and the inner container are both internally provided with a water drain valve rod, one end of the water drain valve rod is connected with the water drain switch, and the other end of the water drain valve rod is matched and clamped with the communicating hole. The water tank and the inner container can respectively store clean water and cleaning agents, and the water drain valve rod is driven to move up and down by rotating the water drain switch, so that the communicating hole can be opened and closed. When the two communication holes are opened, clean water and cleaning agent simultaneously enter the mixed water tank to be mixed, and then are conveyed to the floor brush device through the water inlet pipe.

Although the above-mentioned water tank assembly of the vacuum cleaner can store clean water and cleaning agent at the same time, the clean water or cleaning agent in the water tank and the inner container needs to flow into the mixing water tank under the action of self gravity, so the water tank and the inner container need to be arranged in a narrow and long shape, and then the water tank and the inner container need to be arranged on the handle. Moreover, with the reduction of the clear water and the cleaning agent amount in the water tank and the inner container, or when the handle is inclined to different angles, the rate that the clear water and the cleaning agent enter the mixed water tank is different, which causes the continuous change of the amount of the clear water and the cleaning agent flowing to the floor brush device in the cleaning process, and influences the cleaning effect of the cleaning device.

It should be noted that the patent application document with publication number CN205126107U cited in this disclosure is intended to exemplify the problems of the existing cleaning device, and the technical solution described in the patent application document with publication number CN205126107U is not intended to be defatting.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems in the prior art, that is, to solve the problem of unstable rate of the clean water and the cleaning solution entering the mixing cavity in the existing multi-cavity liquid storage tank, the present disclosure provides a liquid storage tank and a pump body, wherein the liquid storage tank has a main cavity and at least two auxiliary cavities storing the cleaning solution, the auxiliary cavities are respectively communicated with the main cavity, the main cavity is communicated with the pump body to provide the cleaning solution to the surface to be cleaned, the liquid storage tank further includes a plugging member for controlling the communication between the auxiliary cavities and the external atmosphere, the auxiliary cavities have liquid supply ports, a pressure control valve is arranged at the liquid supply ports, and the negative pressure formed in the main cavity by the started pump body drives the pressure control valve corresponding to the auxiliary cavities communicated with the external atmosphere to open so that the cleaning solution in the auxiliary cavities enters the main cavity to be mixed.

Alternatively, the at least two sub-chambers are respectively provided with a liquid injection port, and the blocking member is provided at the liquid injection port to control the opening and closing of the liquid injection port, thereby controlling the communication between at least one of the at least two sub-chambers and the outside atmosphere.

Alternatively, the reservoir may be provided with one of the blocking members and two of the sub-chambers, the blocking member may be switched between a first position, a second position, and a third position, the blocking member located at the first position or the second position may block the liquid inlet of one of the two sub-chambers and may allow the liquid inlet of the other sub-chamber to communicate with the external atmosphere, and the blocking member located at the third position may allow the liquid inlets of both the sub-chambers to communicate with the external atmosphere.

Optionally, the pressure control valve is provided as a valve, and the valve is in a closed state under the action of self-elasticity and is opened by pressure overcoming the self-elasticity.

Alternatively, the pressure control valve may include a spring and a sealing member that seals the liquid supply port by an elastic force of the spring, and the sealing member may open the liquid supply port by a pressure against the elastic force of the spring.

Optionally, the at least two sub-chambers include a first sub-chamber for storing clean water and a second sub-chamber for storing washing liquid, and a distance between the liquid supply port of the first sub-chamber and the outlet of the main chamber is greater than a distance between the liquid supply port of the second sub-chamber and the outlet of the main chamber.

Optionally, the position of the liquid supply port of the second sub-chamber is located between the liquid supply port of the first sub-chamber and the outlet of the main chamber.

Optionally, a baffle is disposed on the bottom wall of the main chamber, the baffle is located between the liquid supply port of the second sub-chamber and the outlet of the main chamber, and the baffle is provided with a plurality of through holes.

Optionally, the bottom surface of the main chamber is gradually lowered in a direction approaching the outlet of the main chamber.

Optionally, a flow collecting member is disposed on the bottom wall of the main chamber, the flow collecting member forms a channel with a wide end and a narrow end on the bottom wall, and the outlet of the main chamber is disposed at the narrow end of the channel.

It will be appreciated by those skilled in the art that the foregoing surface cleaning apparatus of the present disclosure has at least the following benefits:

1. the utility model discloses a surface cleaning device can save multiple cleaning solution that is used for cleaning surface such as clear water, washing liquid or disinfectant respectively in two at least subchambers, and the pump body that starts is formed with the negative pressure at the main cavity room, can open under atmospheric pressure difference's effect with the pressure control valve of the subchamber of external intercommunication, and simultaneously, cleaning solution (clear water, washing liquid or disinfectant etc.) in the subchamber flows into the main cavity room from supplying the liquid mouth under atmospheric pressure's effect. Through setting up water pump and the pressure control valve of mutually supporting, make the cleaning solution in the auxiliary chamber can get into the main cavity room under the atmospheric pressure effect, because the effect of atmospheric pressure is greatly greater than the effect of cleaning solution self gravity, consequently the rate that the cleaning solution got into the main cavity room can hardly change because of the change of cleaning liquid measure in the auxiliary chamber, make the rate that the cleaning solution got into the main cavity room remain stable, thereby make and carry the volume of the cleaning solution to the cleaning assembly (like the cleaning roller or the tray that has the mop) of treating clean surface or surface cleaning device stable, and then make surface cleaning device can keep stable clean effect. And, under the condition that utilize atmospheric pressure to make the sub-cavity supply liquid, the liquid reserve tank can set up to the platykurtic to need not set up on the handle of surface cleaning device, but set up and hide at the main frame body, and then make the appearance of surface cleaning device more pleasing to the eye.

Furthermore, by arranging the plugging member for controlling the communication between the auxiliary chamber and the external atmosphere, when the plugging member blocks the communication between the auxiliary chamber outside the auxiliary chamber storing the clean water and the outside, only the clean water flows into the main chamber, so that the surface cleaning device can mop the floor by using the clean water; when the subchamber that has the clear water and the subchamber that has washing liquid or disinfectant of storage all communicate with the external world, clear water and washing liquid or disinfectant flow into the main cavity room simultaneously and mix to become mixed liquid in the main cavity room, so that surface cleaning device uses mixed liquid to drag the ground, it is visible, the utility model discloses a multiple cleaning solution that is used for clean surface such as clear water, washing liquid or disinfectant can be saved simultaneously to surface cleaning device's liquid reserve tank to realize that the clear water drags ground mode and mixed liquid and drags the switching of ground mode, make the user need not to mix clear water and other cleaning solutions manually when mixed liquid drags the ground at every turn, thereby make surface cleaning device's use more convenient, improved user experience.

2. By switching the plugging member between the first position, the second position and the third position, one or two of the two auxiliary chambers can be selectively supplied with liquid to the main chamber, so that the switching of a clean water mopping mode in which only clean water flows into the main chamber and a mixed liquid mopping mode in which the clean water and the washing liquid all flow into the main chamber is realized, and in the process of mopping the ground by using the mixed liquid, only the clean water or only the washing liquid can flow into the main chamber by switching the plugging member between the first position and the second position, so that the mixing proportion of the clean water and the washing liquid is controlled.

3. Through the confession liquid mouth setting with the vice cavity of second between the export of confession liquid mouth and the main cavity room of first pair cavity, get into the main cavity room simultaneously at washing liquid and clear water and follow the in-process that the main cavity room flows out, clear water and washing liquid can earlier meet, and simultaneously, the fast clear water of velocity of flow strikes the slow washing liquid of velocity of flow to make clear water and washing liquid mix more fully.

4. Through set up the baffle that has a plurality of through-holes between the confession liquid mouth of the vice cavity of second and the export of main cavity for when the washing liquid flowed to baffle department, a plurality of through-holes can disperse the washing liquid, thereby avoid appearing comparatively viscous washing liquid too late with the situation of clear water effective mixing.

5. Gather through setting up on the diapire at the main cavity and flow the piece, make the runner of cleaning solution (clear water, washing liquid or disinfectant etc.) more narrow more near the export of main cavity, thereby play the guide effect to the cleaning solution, avoid the cleaning solution to flow everywhere, and then reduced the invalid flow of the in-process of the export of cleaning solution to the main cavity, and simultaneously, it can assemble clear water and other cleaning solutions to gather to flow the piece, thereby promote the mixture between the different cleaning solutions, and make the cleaning solution in the main cavity can be taken out by the pump body as far as possible, thereby the gathering of cleaning solution in the main cavity has been avoided.

Drawings

Some embodiments of the disclosure are described below with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of a liquid storage tank according to a first embodiment of the present invention;

FIG. 2 is an exploded view of a reservoir according to a first embodiment of the present invention;

FIG. 3 is a schematic structural view of a subtank according to a first embodiment of the present invention;

fig. 4 is a schematic view of a first position of the blocking member according to a first embodiment of the present invention;

fig. 5 is a schematic view of a second position of the blocking member according to the first embodiment of the present invention;

fig. 6 is a schematic view of a third position of the blocking member according to the first embodiment of the present invention;

fig. 7 is a schematic structural view of a pressure control valve according to a first embodiment of the present invention;

fig. 8 is a schematic structural diagram of a pressure control valve according to a second embodiment of the present invention.

Description of the reference numerals:

10. a main box body; 11. a main chamber; 12. a liquid outlet; 13. a box body; 14. a box cover; 141. forming a hole;

20. an auxiliary box body; 21. a first sub-chamber; 22. a second secondary chamber; 23. a first liquid injection port; 24. a first liquid supply port; 25. a second liquid injection port; 26. a second liquid supply port; 27. a cylinder; 28. a guide groove;

30. a plugging member; 31. a sealing part; 32. an operation unit;

40. a fixed cover; 50. a sealing plug;

60. a pressure control valve; 61. a seal member; 62. a spring; 63. and (5) sealing rings.

Detailed Description

It should be noted that in the description of the present disclosure, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present disclosure, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present disclosure can be understood as specific cases to one skilled in the art.

The utility model provides a surface cleaning device, including the liquid reserve tank and the pump body, the liquid reserve tank has the main cavity room, two at least storages have the vice cavity room of cleaning solution, vice cavity room communicates with the main cavity room respectively, main cavity room and pump body intercommunication are in order to providing the cleaning solution to treating clean surface, the liquid reserve tank still includes the main shutoff component that is used for controlling vice cavity room and outside atmosphere intercommunication, vice cavity room has the confession liquid mouth, supply liquid mouth department to be equipped with the pressure control valve, the negative pressure that the pump body that starts formed in the main cavity room orders about the pressure control valve that corresponds with the vice cavity room of outside atmosphere intercommunication and opens, so that the cleaning solution entering main cavity room in the vice cavity room mixes.

The utility model discloses a surface cleaning device's liquid reserve tank can save the clear water respectively in two at least accessory chambers, multiple cleaning solution that is used for cleaning surface such as washing liquid or disinfectant, and simultaneously, through setting up water pump and the pressure control valve of mutually supporting, make cleaning solution (clear water in the accessory chamber, washing liquid or disinfectant etc.) can get into the main cavity room under atmospheric pressure effect, because the effect of atmospheric pressure is far greater than the effect of cleaning solution self gravity, therefore the speed that the cleaning solution got into the main cavity room can hardly change because of the change of cleaning solution volume in the accessory chamber, make the speed that the cleaning solution got into the main cavity room remain stable, thereby make and carry the volume of cleaning solution to the cleaning assembly (like cleaning roller or the tray that has the mop) of treating cleaning surface or surface cleaning device stable, and then make surface cleaning device can keep stable clean effect. In addition, under the condition that the auxiliary chamber supplies liquid by using air pressure, the liquid storage box can be arranged in a flat shape, so that the liquid storage box is not arranged on a handle of the surface cleaning device but arranged on the main body to be hidden, and the appearance of the surface cleaning device is more attractive.

Further, by arranging the blocking member for controlling the communication between the auxiliary chamber and the external atmosphere, when the blocking member blocks the communication between the auxiliary chamber outside the auxiliary chamber in which the clean water is stored and the outside, only the clean water flows into the main chamber, so that the surface cleaning device can mop the floor by using the clean water; when the subchamber that has the clear water with the subchamber that has other cleaning solutions of storage all communicates with the external world, clear water and other cleaning solutions flow into the main cavity room simultaneously and mix in the main cavity room, so that surface cleaning device uses mixed liquid to drag ground, it is visible, the utility model discloses a surface cleaning device's liquid reserve tank can save the clear water simultaneously, multiple cleaning solutions that are used for cleaning surface such as washing liquid or disinfectant to realize that the clear water drags ground mode and mixed liquid and drag the switching of ground mode, make the user need not all to manually mix clear water and other cleaning solutions when mixed liquid drags ground at every turn, thereby make surface cleaning device's use more convenient, improved user experience.

The following describes the specific structure of the surface cleaning device of the present invention with reference to the accompanying drawings:

it should be understood by those skilled in the art that the embodiments described below are only a part of the embodiments of the present disclosure, not all of the embodiments of the present disclosure, and the part of the embodiments are intended to explain the technical principles of the present disclosure and not to limit the scope of the present disclosure. All other embodiments that can be derived by one of ordinary skill in the art based on the embodiments provided in the disclosure without inventive faculty should still fall within the scope of the disclosure.

It should be noted that the surface cleaning device of the present invention can be used for cleaning the surface to be cleaned by using the cleaning roller, and can also be used for cleaning the surface to be cleaned by using other cleaning components such as a tray with a mop. In addition, the cleaning solution in the main chamber may be delivered directly to the surface to be cleaned, or may be delivered to the cleaning assembly and then directed to the surface to be cleaned.

The first embodiment of the present disclosure:

as shown in fig. 1, the reservoir of the surface cleaning apparatus of the present embodiment includes a main housing 10 and a sub-housing 20 disposed in the main housing 10. The main housing 10 has a main chamber 11 and a liquid outlet 12 (shown in fig. 2), and the liquid outlet 12 is externally connected to a pump body for pumping the liquid in the main chamber 11. The secondary tank 20 has a first secondary chamber 21 for storing fresh water and a second secondary chamber 22 for storing washing liquid, respectively. The first sub-chamber 21 is communicated with the outside through a first liquid injection port 23 and communicated with the main chamber 11 through a first liquid supply port 24; the second sub-chamber 22 communicates with the outside through the second liquid inlet 25 and communicates with the main chamber 11 through the second liquid supply port 26.

The number of the first and second liquid supply ports 24 and 26 may be plural.

As shown in fig. 2, the main casing 10 includes a casing 13 and a cover 14. The auxiliary box 20 has a groove (not shown), the bottom of the box cover 14 has a rib (not shown) matching the groove, and the box cover 14 further has a hole 141. In assembly, the first liquid injection port 23 and the second liquid injection port 25 are allowed to pass through the formation hole 141, and then the rib of the lid 14 and the groove of the sub-lid 20 are tightly fitted together, so that the sub-lid 20 is fixed to the lid 14, and at the same time, the lid 14 seals the first sub-chamber 21 and the second sub-chamber 22, so that the first sub-chamber 21 and the second sub-chamber 22 can only communicate with the outside through the first liquid injection port 23 and the second liquid injection port 25.

The case 13 and the case cover 14 may be integrally formed. In addition, the sub-tank 20 itself may be configured to communicate with the outside only through the first liquid inlet 23 and the second liquid inlet 25, and in this case, the sub-tank 20 may be entirely provided inside the main tank 10, entirely provided outside the main tank 10, partially provided inside the main tank 10, and partially provided outside the main tank 10, as long as the first liquid inlet 24 and the second liquid inlet 26 are ensured to communicate with the main chamber 11. The main casing 10 and the sub-casing 20 may be integrally formed.

With continued reference to fig. 2, the reservoir further comprises a blocking member 30, a stationary cover 40 and a sealing plug 50. The first pouring outlet 23 and the second pouring outlet 25 are formed in the same cylindrical body 27, with a portion of the side wall of the cylindrical body 27 missing. The blocking member 30 is sleeved on a rotating shaft (not labeled) in the middle of the cylinder 27 and can rotate around the rotating shaft.

As shown in FIG. 3, the fixing cap 40 is provided on the top end of the cylindrical body 27 and a portion of the fixing cap 40 complementing a portion of the side wall of the cylindrical body 27 is missing, so that the guide groove 28 is formed on the side wall of the cylindrical body 27, and the guide groove 28 communicates with both the first pouring outlet 23 and the second pouring outlet 25. The blocking member 30 includes a sealing portion 31 and an operating portion 32 (shown in fig. 2), and the sealing portion 31 is in sealing abutment with the fixing cap 40, the inner bottom wall of the cylindrical body 27, and the inner side wall of the cylindrical body 27 during rotation, respectively. The operating portion 32 protrudes from the guide groove 28 to allow the user to rotate the blocking member 30 through the operating portion 32. A sealing plug 50 is provided at the top end of the cylindrical body 27 so as to seal the first pouring port 23 and the second pouring port 25 at the top.

During assembly, the plugging member 30 is sleeved on the rotating shaft, then the fixing cover 40 is installed, and finally the sealing plug 50 is covered to complete the assembly.

It should be noted that the fixing cover 40 and the sealing plug 50 may be integrally formed.

Based on the foregoing, it can be understood by those skilled in the art that the blocking member 30 can be located at the first position, the second position and the third position by rotating when the water storage tank is assembled. As shown in fig. 4, the blocking member 30 is in the first position, the blocking member 30 is located at the end of the rotational path closest to the first liquid injection port 23, thereby blocking the communication of the first liquid injection port 23 with the guide groove 28 and thus the communication of the first sub-chamber 21 with the outside, while the second liquid injection port 25 is kept in communication with the outside along the path indicated by the arrow in fig. 4; as shown in fig. 5, the blocking member 30 is in the second position, the blocking member 30 is located at the end of the rotation path closest to the second liquid injection port 25, thereby blocking the communication between the second liquid injection port 25 and the guide groove 28, and thus the communication between the second sub-chamber 22 and the outside, and at the same time, the first liquid injection port 23 is communicated with the outside along the path indicated by the arrow in fig. 5; as shown in FIG. 6, the blocking member 30 is in the third position, and the blocking member 30 is located at a middle position on the rotational path, so that the first liquid injection port 23 and the second liquid injection port 25 are respectively brought into communication with the outside along the paths indicated by the arrows in FIG. 6.

It should be noted that the same effect can be achieved by leaving only the top openings of the first pouring outlet 23 and the second pouring outlet 25 without providing the fixing cap 40 and the sealing plug 50, and then providing a plate-like lid member 30 on the top of the cylindrical body 27 so as to cover the top openings of the first pouring outlet 23 and the second pouring outlet 25, and rotating the lid member 30 to a different position to seal the first pouring outlet 23 or the second pouring outlet 25 from the top.

As shown in fig. 7, taking the second liquid supply port 26 as an example, the second liquid supply port 26 is provided with a pressure control valve 60, and the pressure control valve 60 is a single valve. As shown in the left view of fig. 5, the valve is in a closed state under the self-elastic force. When the pump body pumps the liquid in the main chamber 11, negative pressure is formed in the main chamber 11, if the blocking member 30 does not seal the second liquid injection port 25 at this time, there is a pressure difference between the second sub-chamber 22 and the main chamber 11, so that the valve is opened when the pressure applied to the valve exceeds the self-elasticity (as shown in the right drawing in fig. 7); if the blocking member 30 seals the second liquid injection port 25, no air pressure difference is generated between the second sub-chamber 22 and the main chamber 11, and the valve will not open. That is, the opening and closing of the second liquid inlet 25 can be controlled by operating the blocking member 30, and whether or not the washing liquid in the second sub-chamber 22 can flow into the main chamber 11 from the second liquid inlet 26 can be controlled. Similarly, the same effect can be achieved by providing the pressure control valve 60 in the first liquid supply port 24.

The surface cleaning apparatus of this embodiment, in use:

when the water is required, the pump body is opened to create a negative pressure in the main chamber 11, while the closure member 30 is in the second position. At this time, the second liquid inlet 25 is sealed by the sealing member 30, so that the valve of the second liquid supply port 26 cannot be opened, and the washing liquid in the second sub-chamber 22 cannot enter the main chamber 11. The first liquid injection port 23 is connected to the outside, so that the valve at the first liquid supply port 24 is opened under the action of atmospheric pressure, and the clean water in the first sub-chamber 21 flows into the main chamber 11 from the first liquid supply port 24 and then flows out from the liquid outlet 12 for use by the surface cleaning device.

When a mixture of clean water and cleaning solution is required, the pump body is opened to create a negative pressure in the main chamber 11, while the closure member 30 is in the third position. At this time, the first liquid injection port 23 and the second liquid injection port 25 are both communicated with the outside, so that the valve of the first liquid supply port 24 and the valve of the second liquid supply port 26 are opened under the action of the atmospheric pressure, the clean water in the first sub-chamber 21 and the washing liquid in the second sub-chamber 22 both flow into the main chamber 11, are mixed in the main chamber 11, and then flow out from the liquid outlet 12 for use in the surface cleaning device. During this time, the ratio of fresh water and washing liquid can be controlled by moving the blocking member 30 to the first or second position, e.g. if more fresh water is required, the blocking member 30 is moved to the second position, thereby closing the valve of the second supply port 26, and if more washing liquid is required, the blocking member 30 is moved to the first position, thereby closing the valve of the first supply port 24.

It can be understood by those skilled in the art that the surface cleaning device of the present embodiment can store clean water and cleaning liquid in the first sub-chamber 21 and the second sub-chamber 22 respectively, and then, by providing the water pump and the pressure control valve 60 which are matched with each other, clean water in the first sub-chamber 21 and cleaning liquid in the second sub-chamber 22 can enter the main chamber 11 under the action of air pressure, since the action of air pressure is much larger than the action of gravity of the clean water and the cleaning liquid, the rate of the clean water and the cleaning liquid entering the main chamber 11 can hardly change due to the change of the liquid amounts of the clean water in the first sub-chamber 21 and the cleaning liquid in the second sub-chamber 22, so that the rate of the clean water and the cleaning liquid entering the main chamber 11 can be kept stable, and therefore, the amount of the clean water and the cleaning liquid delivered to the surface to be cleaned or the cleaning component of the surface cleaning device can be kept stable in cleaning effect. In addition, in the case of supplying the liquid to the first sub-chamber 21 and the second sub-chamber 22 by using the air pressure, the liquid storage tank may be formed in a flat shape, so that it is not disposed on the handle of the surface cleaning apparatus but disposed on the main body to be hidden, thereby making the appearance of the surface cleaning apparatus more beautiful.

Further, by providing the blocking member 30 for controlling the communication of the sub-chamber with the external atmosphere, when the blocking member 30 blocks the communication of the storage second sub-chamber 22 with the outside, only the clean water flows into the main chamber 11, so that the surface cleaning apparatus drags the floor with the clean water; when first pair cavity 21 and second pair cavity 22 all communicate with the external world, clear water and washing liquid flow into main cavity 11 simultaneously and mix into mixed liquid in main cavity 11, so that surface cleaning device uses mixed liquid to drag ground, it is visible, the surface cleaning device's of this embodiment liquid reserve tank can save clear water and washing liquid simultaneously, and realize that the clear water drags ground mode and mixed liquid and drag the switching of ground mode, make the user need not to mix washing liquid and clear water manually when mixed liquid drags ground at every turn, thereby make surface cleaning device's use more convenient, user experience has been improved.

Further, by moving the plugging member 30 between the first position and the second position during mopping with the mixed liquid, the mixing ratio of the clean water and the cleaning liquid can be controlled.

It should be noted that the first and second liquid supply ports 24 and 26 may be provided with separate blocking members 30, respectively, and the first and second liquid supply ports 24 and 26 may be provided with a certain distance, which is inconvenient. In addition, the blocking member 30 may be configured to control only the opening and closing of the second liquid inlet 25, that is, the first liquid inlet 23 is normally open, and the alternate use of the clean water and the mixed liquid is possible.

In addition, it should be noted that the number of the main chambers 11 may also be equal to that of the sub-chambers, the plurality of sub-chambers are respectively communicated with the plurality of main chambers 11, and the liquid outlets of the plurality of main chambers 11 are communicated to one place to realize the mixing of the clean water and the washing liquid, but the structure is more complicated.

Furthermore, in a preferred embodiment of this embodiment, the distance between the first liquid supply port 23 and the liquid outlet 12 is larger than the distance between the second liquid supply port 25 and the liquid outlet 12, so as to reduce the time interval between the slow flow of the washing liquid and the fast flow of the clean water reaching the liquid outlet. Further, second confession liquid mouth 25 is located between first confession liquid mouth 23 and the liquid outlet 12, and at the in-process of washing liquid and clear water flow direction liquid outlet 12, clear water and washing liquid can be earlier meet to, the fast clear water of velocity of flow can strike the slow washing liquid of velocity of flow, thereby makes clear water and washing liquid mix more fully. Meanwhile, the first liquid supply port 23 and the second liquid supply port 25 can be far away from the liquid outlet 12 as far as possible, so that the clean water and the washing liquid can be mixed for a more sufficient time and then flow out of the liquid outlet 12.

Although not shown, further, a baffle is disposed on the bottom wall of the main chamber 11, and the baffle is located between the second liquid supply port 25 and the liquid outlet port 12, and the baffle is provided with a plurality of through holes. In the process that washing liquid flows to liquid outlet 12, washing liquid and baffle collision and dispersed into many parts by a plurality of through-holes, avoid appearing comparatively thick washing liquid and come not to arrive the situation of effectively mixing with clear water.

In addition, in a preferred embodiment of this embodiment, the bottom surface of the main chamber 11 is gradually lowered in a direction close to the liquid outlet 12 to guide the flow of the fresh water and the washing liquid, so that the liquid in the main chamber 11 can more easily flow to the liquid outlet 12.

A second embodiment of the disclosure:

as shown in fig. 8, the pressure control valve 60 of the present embodiment includes a seal 61, a spring 62, and a seal ring 63, unlike the first embodiment. In the initial state, the seal 61 is in close contact with the seal ring 63 supported by the spring 62, thereby sealing the second liquid supply port 26 (or the first liquid supply port 24). When the pump body pumps the liquid in the main chamber 11, negative pressure is formed in the main chamber 11, if the blocking member 30 does not seal the second liquid injection port 25 (or the first liquid injection port 23), a pressure difference exists between the second sub-chamber 22 (or the first sub-chamber 21) and the main chamber 11, so that the pressure applied to the sealing element 61 exceeds the elastic force of the spring 62 to compress the spring 62, so that the sealing element 61 is separated from the sealing ring 63, and the second liquid supply port 26 (or the first liquid supply port 24) is opened.

It should be noted that, in the pressure control valve 60 of the present embodiment, the sealing ring 63 is not provided, but the sealing member 61 may directly seal the second liquid supply port 26 (or the first liquid supply port 24) by sealing contact with the liquid inlet of the second liquid supply port 26 (or the first liquid supply port 24). The shape of the seal 61 may be spherical or conical, or may be a circular plate having a size larger than the inlet of the second liquid supply port 26 (or the first liquid supply port 24).

A third embodiment of the present disclosure:

although not shown in the drawings, the liquid storage tank of the present embodiment is different from the first embodiment in that three or more sub-chambers are provided, and different kinds of cleaning liquids such as clean water, cleaning liquid or disinfectant can be respectively stored in the sub-chambers, so that more matched cleaning effects can be achieved.

A fourth embodiment of the present disclosure:

although not shown in the drawings, unlike the first and third embodiments, the liquid storage tank of this embodiment is provided with a flow collecting member on the bottom wall of the main chamber, the flow collecting member forms a channel with a wide end and a narrow end on the bottom wall of the main chamber, and the liquid outlet is provided at the narrow end of the channel. Clear water and washing liquid flow in the main cavity after, gather the runner that existence that flows the piece makes cleaning solution (clear water, washing liquid or disinfectant etc.) more be close to the liquid outlet more narrow to play the guide effect to the flow of cleaning solution, avoid the cleaning solution to flow everywhere, and then reduced the invalid flow of the in-process of cleaning solution flow direction liquid outlet. Meanwhile, the flow gathering piece can gather different cleaning liquids, so that mixing of the different cleaning liquids is promoted, the cleaning liquid in the main cavity can be pumped away by the pump body as far as possible, and accumulation of the liquid in the main cavity is avoided.

It should be noted that the main chamber itself may be directly arranged so as to be narrower as it approaches the liquid outlet, and the same effect as that of the flow collecting member may be obtained.

So far, the technical solutions of the present disclosure have been described in connection with the foregoing embodiments, but it is easily understood by those skilled in the art that the scope of the present disclosure is not limited to only these specific embodiments. A person skilled in the art may split and combine the technical solutions in the above embodiments, and may make equivalent changes or substitutions on the related technical features without departing from the technical principles of the present disclosure, and any changes, equivalents, improvements and the like made within the technical concept and/or technical principles of the present disclosure will fall within the protection scope of the present disclosure.

Claims (10)

1. The utility model provides a surface cleaning device, includes the liquid reserve tank and the pump body, the liquid reserve tank has main cavity, two at least storeys the subchamber of cleaning solution, the subchamber respectively with main cavity intercommunication, main cavity and pump body intercommunication are in order to provide the cleaning solution to waiting to clean the surface, a serial communication port, the liquid reserve tank still includes and is used for controlling the shutoff component of subchamber and outside atmosphere intercommunication, the subchamber has the confession liquid mouth, confession liquid mouth department is equipped with the pressure control valve, the start the pump body is in the negative pressure that forms in the main cavity orders about the pressure control valve that corresponds with the subchamber of outside atmosphere intercommunication and opens to make the cleaning solution in the subchamber enter the main cavity and mix.

2. A surface cleaning apparatus as claimed in claim 1, wherein the at least two sub-chambers are each provided with an inlet, and the blocking member is provided at the inlet to control the opening and closing of the inlet to control the communication of at least one of the at least two sub-chambers with the outside atmosphere.

3. A surface cleaning apparatus according to claim 2, wherein the reservoir is provided with one of the blocking members and two of the secondary chambers, the blocking member being switchable between a first position, a second position and a third position,

the blocking member located at the first position or the second position closes the liquid charging port of one of the two sub-chambers and keeps the liquid charging port of the other sub-chamber in communication with the outside atmosphere,

the blocking member is located at the third position so that the liquid injection ports of both the sub-chambers are communicated with the outside atmosphere.

4. A surface cleaning apparatus as claimed in any one of claims 1 to 3, characterised in that the pressure control valve is provided as a valve which is held in a closed condition by its own resilience and which is opened by pressure against its own resilience.

5. A surface cleaning apparatus according to any one of claims 1 to 3, wherein the pressure control valve comprises a spring and a seal which seals the supply port under the spring force of the spring, the seal being biased against the spring force to open the supply port.

6. A surface cleaning apparatus as claimed in any one of claims 1 to 3, characterised in that the at least two sub-chambers include a first sub-chamber for storing fresh water and a second sub-chamber for storing a cleaning liquid, the distance between the supply port of the first sub-chamber and the outlet of the main chamber being greater than the distance between the supply port of the second sub-chamber and the outlet of the main chamber.

7. A surface cleaning apparatus as claimed in claim 6, characterised in that the supply port of the second sub-chamber is located between the supply port of the first sub-chamber and the outlet of the main chamber.

8. A surface cleaning apparatus as claimed in claim 7, characterised in that a baffle is provided in the bottom wall of the main chamber, the baffle being located between the supply port of the second sub-chamber and the outlet of the main chamber, and the baffle being provided with a plurality of through holes.

9. A surface cleaning apparatus as claimed in any one of claims 1 to 3, characterised in that the floor of the main chamber is tapered in a direction towards the outlet of the main chamber.

10. A surface cleaning apparatus as claimed in any one of claims 1 to 3, characterised in that a flow focusing member is provided on the bottom wall of the main chamber, the flow focusing member forming a channel on the bottom wall which is wider at one end and narrower at the other end, the outlet of the main chamber being provided at the narrow end of the channel.

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