CN217938136U - Floor cleaning machine - Google Patents

Abstract

The application provides a floor washing machine, which comprises a water tank, a pipeline and a one-way valve, wherein the water tank is used for containing liquid; the pipeline is communicated with the water tank and is used for conveying the liquid in the water tank to the cleaning head; one end of the one-way valve is communicated with the pipeline, when the pressure intensity in the pipeline is smaller than the pressure intensity outside the pipeline, the one-way valve is opened, and air outside the pipeline enters the pipeline through the one-way valve; when the pressure in the pipeline is greater than or equal to the pressure outside the pipeline, the one-way valve is closed. The siphon phenomenon in the water pipe can be cut off to the check valve in this application, when scrubber stop work, through opening of check valve, inside and outside pressure difference with balanced pipeline in the outside air admission pipeline, effectively prevent the inside liquid leakage of water tank, and the one end of check valve is installed and can be worked on the pipeline, the check valve is automatic to be opened when the negative pressure appears in the pipeline inside, when pressure in the pipeline is greater than or equal to the outside pressure of pipeline, check valve self-closing, need not artificial control, the installation is simple, high durability and convenient use.

Description

Floor cleaning machine

Technical Field

The application relates to the field of cleaning equipment, in particular to a floor washing machine.

Background

The floor washing machine can efficiently realize floor cleaning and is widely applied to daily cleaning work of families. The floor cleaning machine usually comprises a water tank, a pipeline and a cleaning head, the water tank supplies water to the cleaning head through the pipeline, when the floor cleaning machine stops working, siphon effect possibly generated in the pipeline causes water leakage of the water tank, and the use experience of the floor cleaning machine is influenced.

SUMMERY OF THE UTILITY MODEL

The application provides a floor cleaning machine that can prevent water tank from leaking.

The application provides a floor washing machine, which comprises a water tank, a pipeline and a one-way valve, wherein the water tank is used for containing liquid; the pipeline is communicated with the water tank and is used for conveying the liquid in the water tank to the cleaning head; one end of the one-way valve is communicated with the pipeline, when the pressure inside the pipeline is lower than the pressure outside the pipeline, the one-way valve is opened, and air outside the pipeline enters the pipeline through the one-way valve; when the pressure in the pipeline is greater than or equal to the pressure outside the pipeline, the one-way valve is closed.

Through the arrangement of the one-way valve, on one hand, the one-way valve can cut off the siphonage in the water tank, when the floor washing machine stops working, through the opening of the one-way valve, external air enters the pipeline to balance the internal and external pressure difference of the pipeline, so that the liquid in the water tank is effectively prevented from leaking, resources are saved, and the normal work of the floor washing machine is ensured; on the other hand, one end of the one-way valve is installed on the pipeline to work, the one-way valve is automatically opened when negative pressure occurs inside the pipeline, and the one-way valve is automatically closed when the pressure inside the pipeline is greater than or equal to the pressure outside the pipeline, so that the manual control is not needed, the installation is simple, the use is convenient, and the floor cleaning machine is suitable for floor cleaning machines of various models.

In a possible implementation manner, the check valve includes a valve body, a valve core, a first duct and a second duct, the valve core is located between the first duct and the second duct, and one end of the first duct far away from the second duct is communicated with the pipeline; when the pressure inside the pipeline is greater than or equal to the pressure outside the pipeline, the valve core abuts against one end, close to the first hole, of the second hole, so that the one-way valve is closed; when the pressure inside the pipeline is lower than the pressure outside the pipeline, the valve core, the first pore passage and the second pore passage are arranged at intervals so that the check valve is opened, and air outside the pipeline enters the pipeline through the second pore passage and the first pore passage in sequence.

In one possible implementation, at least part of the pipeline is at a distance greater than or equal to the distance between the middle part of the water tank and the cleaning head; or the distance between at least part of the pipeline and the cleaning head is larger than or equal to the distance between the highest water level line of the water tank and the cleaning head.

In a possible implementation manner, the floor washing machine further includes a pump, the pump is installed on the pipeline, is located between the water tank and the one-way valve, and is used for driving the liquid in the water tank to flow to the cleaning head, when the pump is closed, the one-way valve is opened when the pressure in the pipeline is lower than the pressure outside the pipeline, and the air outside the pipeline enters the pipeline through the one-way valve.

In one possible implementation, the one-way valve is located between the pump and the portion of the conduit furthest from the cleaning head.

In a possible implementation manner, the water tank is provided with an air inlet, when the pump works, the air inlet is opened to enable air outside the water tank to enter the water tank, and when the pump stops working, the air inlet is closed.

In one possible implementation, the scrubber further comprises a three-way valve, the three-way valve comprising a first end, a second end and a third end, the pipeline comprising a first section and a second section, the first section communicating with the water tank and the first end, the second section communicating with the second end and the cleaning head, the third end communicating with one end of the one-way valve.

In one possible implementation, the floor washing machine further comprises a handle, one end of the handle is rotatably connected with the cleaning head, and the water tank is mounted to the handle; be equipped with the wire casing on the handle, the pipeline is located the wire casing is internal, the pipeline is including the first section and the second section that are connected, the check valve is located first section with just be located between the second section first section with the second section is kept away from the one end of cleaning head.

In one possible implementation, the scrubber further comprises a three-way valve including a first end, a second end and a third end, the first section communicating the tank and the first end, the second section communicating the second end and the cleaning head, the third end communicating one end of the one-way valve; still be equipped with first recess and second recess on the handle, first recess with the second recess is used for acceping respectively the three-way valve with the check valve, the wire casing first recess with the second recess is followed the extending direction of handle sets up side by side.

In one possible implementation, the floor washing machine further comprises a handle, one end of the handle is rotatably connected with the cleaning head, and the water tank is mounted to the handle; one side of the water tank close to the handle is provided with a wire groove facing the inner part of the water tank, and the pipeline is positioned in the wire groove.

The application also provides a water supply system, which is applied to the floor washing machine and used for supplying water to the cleaning head of the floor washing machine, wherein the water supply system comprises a water tank, a pipeline and a one-way valve, and the water tank is used for containing liquid; the pipeline is communicated with the water tank and is used for conveying the liquid in the water tank to the cleaning head; one end of the one-way valve is communicated with the pipeline, when the pressure in the pipeline is lower than the pressure outside the pipeline, the one-way valve is opened, and air outside the pipeline enters the pipeline through the one-way valve; when the pressure in the pipeline is greater than or equal to the pressure outside the pipeline, the one-way valve is closed.

In this application, through the setting of check valve, the siphon phenomenon in the check valve can cut off the water pipe, when scrubber stop work, through opening of check valve, inside and outside pressure difference with balanced pipeline in the outside air admission pipeline, effectively prevent the inside liquid leakage of water tank, and the one end of check valve is installed and can be worked on the pipeline, the check valve is automatic to be opened when the negative pressure appears in the pipeline inside, when pressure in the pipeline is more than or equal to the outside pressure of pipeline, check valve self-closing, need not artificial control, the installation is simple, high durability and convenient use, and be applicable to the scrubber of various models.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be described below.

FIG. 1 is a schematic illustration of a scrubber provided in accordance with an embodiment of the present application;

FIG. 2 is a schematic view of a one-way valve in a closed state as provided by an embodiment of the present application;

FIG. 3 is a schematic view of a check valve provided in an open state according to an embodiment of the present application;

fig. 4 is a structural diagram of a floor washing machine according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

Herein, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

Further, where directional terms such as "upper", "lower", etc., are defined herein with respect to a schematically-disposed orientation of a structure in the drawings, it is to be understood that these directional terms are relative concepts that may be changed accordingly depending on the orientation in which the structure is disposed.

Referring to fig. 1, fig. 1 is a schematic view of a floor washing machine 1 according to an embodiment of the present disclosure, where the floor washing machine 1 according to an embodiment of the present disclosure includes a water tank 10, a pipeline 20, and a check valve 30, where the water tank 10 is used for containing liquid; a conduit 20 communicating with the tank 10 for conveying the liquid in the tank 10 to the cleaning head 40; one end of the check valve 30 is communicated with the pipeline 20, when the pressure inside the pipeline 20 is lower than the pressure outside the pipeline 20, the check valve 30 is opened, and the air outside the pipeline 20 enters the pipeline 20 through the check valve 30; the check valve 30 closes when the pressure in the line 20 is greater than or equal to the pressure outside the line 20.

The floor cleaning machine 1 also comprises a floor sweeping/cleaning integrated machine and a multifunctional floor cleaning machine, and is used for cleaning floors, floors and carpets, and also can be used for cleaning objects with a certain plane, such as tables, workbenches, sofas, bed boards, mattresses and the like.

In this embodiment, the liquid in the water tank 10 is a cleaning liquid, when the floor cleaning machine 1 operates, the water tank 10 provides the cleaning liquid to the cleaning head 40, the cleaning head 40 contacts with the floor and cleans and scrubs the garbage on the floor, the cleaning liquid refers to clean water, cleaning agent or cleaning agent diluted with water, and in one embodiment, at least one of the cleaning agent, the disinfectant or the fragrance-increasing liquid can be added into the water tank 10 for cleaning, disinfecting or increasing fragrance of the floor.

One end of the pipe line 20 communicates with the water tank 10, the other end of the pipe line 20 communicates with the cleaning head 40, and the liquid in the water tank 10 is transferred to the cleaning head 40 through the pipe line 20. In one embodiment, the conduit 20 is a complete hose that can accommodate different installation environments. In one embodiment, the conduit 20 may also include a plurality of spliced tubes, and may also include channels for circulating a fluid, which is not limited in this application.

The check valve 30 is also called a check vent valve in the present embodiment, one end of the check valve 30 is communicated with the pipeline 20, the other end of the check valve 30 is exposed outside the pipeline 20 and is communicated with the outside air, the pressure outside the pipeline 20 is the atmospheric pressure, the check valve 30 is only communicated in one direction from the outside of the pipeline 20 to the inside of the pipeline 20, and the liquid in the pipeline 20 cannot leak out of the pipeline 20 through the check valve 30. When the floor washing machine 1 works, the one-way valve 30 is in a closed state; when the floor washing machine 1 stops working, when a siphon phenomenon is generated inside the pipeline 20, the pressure inside the pipeline 20 is smaller than the pressure outside the pipeline 20, the one-way valve 30 is opened, air outside the pipeline 20 enters the pipeline 20 through the one-way valve 30, and the siphon effect inside the pipeline 20 is cut off, so that liquid inside the water tank 10 is effectively prevented from leaking onto the cleaning head 40 and finally flowing to the ground when the water tank 10 stops working.

Through the arrangement of the one-way valve 30, on one hand, the one-way valve 30 can cut off the siphonage phenomenon in the pipeline 20, when the floor washing machine 1 stops working, through the opening of the one-way valve 30, external air enters the pipeline 20 to balance the internal and external pressure difference of the pipeline 20, liquid inside the water tank 10 is effectively prevented from leaking, so that resources are saved, and the normal work of the floor washing machine 1 is ensured; on the other hand, one end of the check valve 30 is installed on the pipeline 20 to work, the check valve 30 is automatically opened when negative pressure occurs inside the pipeline 20, and the check valve 30 is automatically closed when the pressure inside the pipeline 20 is greater than or equal to the pressure outside the pipeline 20, so that manual control is not needed, the installation is simple, the use is convenient, and the floor cleaning machine is suitable for floor cleaning machines 1 of various models.

In one embodiment, scrubber 1 includes a plurality of check valves 30 thereon, each of the plurality of check valves 30 having one end in communication with conduit 20 for preventing water leakage from scrubber 1.

In one embodiment, the water tank 10 can also be used for collecting the dirty liquid generated in the cleaning head 40, and the check valve 30 can prevent the dirty liquid in the water tank 10 from leaking to the floor through the pipeline 20 and the cleaning head 40.

In an embodiment, the water tank 10 includes a clean liquid accommodating chamber and a dirty liquid accommodating chamber, the liquid in the clean liquid accommodating chamber is transported to the cleaning head 40 through the pipeline 20, the dirty liquid generated in the cleaning head 40 is transported to the dirty liquid accommodating chamber through the dirty liquid pipe, at this time, a check valve 30 can be disposed on both the pipeline 20 and the dirty liquid pipe for preventing the clean liquid accommodating chamber and the dirty liquid accommodating chamber from leaking water, the clean liquid accommodating chamber and the dirty liquid accommodating chamber can be separated, the clean liquid accommodating chamber and the dirty liquid accommodating chamber can also be connected through a filtering device, and the dirty liquid is purified by the filtering device and then flows into the clean liquid accommodating chamber for recycling.

Referring to fig. 2 and 3, fig. 2 is a schematic view of a check valve 30 in a closed state provided in an embodiment of the present application, fig. 3 is a schematic view of a check valve 30 in an open state provided in an embodiment of the present application, in a possible implementation, the check valve 30 includes a valve body 31, a valve core 32, a first port 33, and a second port 34, the valve core 32 is located between the first port 33 and the second port 34, and an end of the first port 33 away from the second port 34 is communicated with a pipeline 20; when the pressure in the line 20 is greater than or equal to the pressure outside the line 20, the spool 32 abuts against one end of the second port 34 near the first port 33 (as shown in fig. 2) to close the check valve 30; when the pressure in the conduit 20 is lower than the pressure outside the conduit 20, the spool 32 is spaced from both the first port 33 and the second port 34 (as shown in fig. 3) so that the check valve 30 is opened and the air outside the conduit 20 enters the conduit 20 through the second port 34 and the first port 33 in sequence.

In an embodiment, the check valve 30 further includes a receiving cavity 35 and an elastic member, the receiving cavity 35 is located between the first duct 33 and the second duct 34, the receiving cavity 35 is used for receiving the valve plug 32, and the receiving cavity 35, the first duct 33 and the second duct 34 penetrate through the valve body 31. When the pressure in the pipeline 20 is greater than or equal to the pressure outside the pipeline 20, the valve core 32 elastically abuts against one end (as shown in fig. 2) of the second orifice 34 through the elastic member to block one end of the second orifice 34 close to the first orifice 33, and the liquid in the pipeline 20 cannot leak out of the pipeline 20 through the check valve 30; when the pressure inside the pipeline 20 is lower than the pressure outside the pipeline 20, under the action of the pressure difference, the valve core 32 moves toward the first orifice 33 along the extending direction of the second orifice 34 (as shown in fig. 3), at this time, the valve core 32 neither blocks the first orifice 33 nor the second orifice 34, and the air outside the pipeline 20 sequentially passes through the second orifice 34, the accommodating cavity 35 and the first orifice 33 and enters the pipeline 20 to balance the pressure difference inside and outside the pipeline 20; when the pressure inside the pipe 20 increases to be greater than or equal to the pressure outside the pipe 20, the valve spool 32 moves toward the second port 34 by the elastic force of the elastic member and is again abutted to one end of the second port 34 (as shown in fig. 2), so that the check valve 30 is closed.

It should be noted that the check valve 30 shown in fig. 2 and 3 is merely illustrative, and the configuration of the check valve 30 is not limited thereto.

In one possible implementation, at least a portion of the conduit 20 is spaced from the cleaning head 40 by a distance greater than or equal to the distance from the cleaning head 40 to the middle of the tank 10.

The water tank 10 and the cleaning head 40 extend along a first direction X, the first direction X is an extending direction of the water tank 10, a distance between a part of the pipeline 20 and the cleaning head 40 is a length from the part of the pipeline 20 to the cleaning head 40 along the first direction X, a middle of the water tank 10 is a middle position of the water tank 10 in the first direction X, and distances between the middle of the water tank 10 and two ends of the water tank 10 along the first direction X are equal. Generally speaking, when the floor washing machine 1 is in operation, the cleaning head 40 contacts the ground, the water tank 10 is located on the side of the cleaning head 40 away from the ground, that is, the height of the water tank 10 from the ground is greater than the height of the cleaning head 40 from the ground, in the first direction X, the distance between part of the pipeline 20 and the cleaning head 40 is greater than the distance between the middle part of the water tank 10 and the cleaning head 40, and part of the pipeline 20 is located on the side of the water tank 10 away from the cleaning head along the first direction X, that is, part of the pipeline 20 is hung up, and the liquid in the water tank 10 firstly flows to the higher position and then flows to the lower cleaning head 40.

In the present embodiment, the pipe 20 is connected to one end of the water tank 10 adjacent to the cleaning head 40 along the first direction X, when the check valve 30 cuts off the siphon phenomenon inside the pipe 20, the liquid inside the water tank 10 flows out into the pipe 20, and when the highest liquid level of the liquid inside the pipe 20 is consistent with the highest liquid level inside the water tank 10, the water inside the water tank 10 does not continue to flow out, that is, water does not leak outwards. By hanging up part of the pipe 20 and incorporating the check valve 30, water leakage from the water tank 10 can be prevented.

In one embodiment, at least a portion of the conduit 20 is spaced from the cleaning head 40 a distance greater than or equal to the distance between the surface of the tank 10 and the cleaning head 40.

In one possible implementation, at least a portion of the conduit 20 is spaced from the cleaning head 40 by a distance greater than or equal to the distance from the cleaning head 40 of the highest water level of the tank 10.

The highest water level of the water tank 10 is the water level when the water tank 10 is filled with the most water, and in one embodiment, the water level when the capacity of the water tank 10 reaches 90% is the highest water level. In one embodiment, the water tank 10 is provided with a filling hole for filling the water tank 10 with liquid, the filling hole is located on a side of the water tank 10 away from the cleaning head 40 along the first direction X, the highest water level line is a horizontal plane passing through the filling hole, and at least a portion of the pipeline 20 is higher than the filling hole, so that the water tank 10 can achieve a better water leakage prevention effect.

In one embodiment, the water tank 10 further includes a liquid filling cover 11 (as shown in fig. 4), the liquid filling cover 11 is used for opening and closing the liquid filling hole, the liquid filling cover 11 covers the liquid filling hole, and by opening the liquid filling cover 11 to fill the water tank 10 with liquid, the highest water level line of the water tank 10 is located on the horizontal plane of one end of the liquid filling cover 11 close to the cleaning head 40, the highest water level line is shown as L in fig. 4, and at least a part of the pipeline 20 is higher than the lowest position of the liquid filling cover 11 at this time, so that the water tank 10 can achieve a better water leakage prevention effect.

In one embodiment, at least a portion of the conduit 20 is spaced from the cleaning head 40 by a distance greater than or equal to the maximum distance of the tank 10 from the cleaning head 40. The maximum distance between the water tank 10 and the cleaning head 40 is the distance between one end of the water tank 10 far away from the cleaning head 40 and the cleaning head along the first direction X, as shown in fig. 1, the maximum distance between the water tank 10 and the cleaning head 40 is b, and the maximum distance between the pipeline 20 and the cleaning head 40 is a, at this time, at least part of the pipeline 20 is higher than the highest position of the water tank 10, that is, a is greater than b, so that the water tank 10 can achieve a better water leakage prevention effect.

In one possible implementation, the scrubber 1 further comprises a pump 50 (shown in fig. 1 and 4), the pump 50 being mounted on the conduit 20 between the tank 10 and the one-way valve 30 for driving liquid in the tank 10 to the cleaning head 40, the one-way valve 30 being opened when the pump 50 is closed such that the pressure in the conduit 20 is lower than the pressure outside the conduit 20, and air outside the conduit 20 passing through the one-way valve 30 into the conduit 20. The pump 50 can adjust the liquid outlet amount and the liquid outlet speed of the liquid in the water tank 10, and the check valve 30 is arranged at the rear side of the pump 50 along the liquid flowing direction, so that the situation that the check valve 30 is opened when the pump 50 works, and air outside the pipeline 20 enters the pipeline 20 to influence the water pumping efficiency of the pump 50 can be avoided.

In one embodiment, the pump 50 in the scrubber 1 has a function of stopping and sealing water, although the pump 50 has a certain function of preventing siphoning, the water tank is not completely sealed by the pump 50, when the pump 50 fails or a glue head in the pump 50 is adhered to cause water pumping failure, the water tank 10 cannot be prevented from leaking by the pump 50, and the one-way valve 30 is arranged in the present embodiment, so that the siphoning effect in the pipeline 20 can be cut off by the one-way valve 30, and the dual function of preventing water leakage is achieved.

In an embodiment, the pump 50 may also be a normal water pump without anti-siphon function, the one-way valve 30 is arranged to cut off the siphon effect inside the pipeline 20, so as to prevent the water tank 10 from leaking water, the one-way valve 30 is arranged so that the floor cleaning machine 1 is not limited in the selection of the type of the pump 50, and the floor cleaning machine 1 can be adapted to various types of pumps 50.

In one possible implementation, the one-way valve 30 is located between the pump 50 and the portion of the conduit 20 furthest from the cleaning head 40. The portion of the pipe 20 farthest from the cleaning head 40 is higher than the liquid level of the water tank 10, and the check valve 30 is disposed between the pump 50 and the portion of the pipe 20 farthest from the cleaning head 40, so that the check valve 30 can better block a siphon when a negative pressure is generated inside the pipe 20 to form a siphon, thereby preventing water leakage from the water tank 10.

In one embodiment, the check valve 30 is disposed on a portion of the pipe 20 farthest from the cleaning head 40, and in this case, the check valve 30 is higher than the highest water level of the tank 10, so that the check valve 30 can block a siphon more quickly when a negative pressure is generated inside the pipe 20 to form a siphon, thereby preventing water leakage from the tank 10.

In one embodiment, the height of the check valve 30 is above the liquid level of the tank 10 or the height of the check valve 30 is above the highest water level of the tank 10.

In a possible implementation, the water tank 10 is provided with an air inlet, which is opened when the pump 50 is in operation so that air outside the water tank 10 enters the water tank 10, and is closed when the pump 50 is out of operation. In this embodiment, the intake hole is located at an end of the water tank 10 remote from the cleaning head 40, and the exhaust hole is located higher in the water tank 10 to prevent water in the water tank from flowing out of the exhaust hole. When the floor washing machine 1 works, water in the water tank 10 flows out into the pipeline 20, and at the moment, the air inlet is opened, so that the pressure inside and outside the water tank 10 can be balanced, and the liquid in the water tank 10 can be discharged conveniently; when the floor cleaning machine 1 does not work, the air inlet is closed, if the water tank 10 leaks water at the moment, the pressure in the water tank 10 is smaller than the external pressure of the water tank 10, so that the outflow of liquid in the water tank 10 is blocked, and the air inlet is closed to be matched with the one-way valve 30, so that the water tank 10 is not easy to leak water.

In one possible implementation, the scrubber 1 further comprises a three-way valve 60 (shown in fig. 1 and 4), the three-way valve 60 comprising a first end 61, a second end 62 and a third end 63, the pipe 20 comprising a first section 21 and a second section 22, the first section 21 communicating the tank 10 with the first end 61, the second section 22 communicating the second end 62 with the cleaning head 40, the third end 63 communicating with one end of the one-way valve 30. Wherein, the other end and the outside air intercommunication of check valve 30, through setting up three-way valve 60, be convenient for communicate check valve 30 in pipeline 20, for example, when reforming transform the scrubber 1 that does not set up check valve 30, cut off continuous pipeline 20 in order to form first section 21 and second section 22 respectively, first section 21 and second section 22 intercommunication three-way valve 60 back, install check valve 30 to three-way valve 60 again on, can not prevent the scrubber 1 that can prevent water tank 10 water leakage in the scrubber 1 transformation cost application of water tank 10 water leakage from preventing scrubber 1.

In the present embodiment, the three-way valve 60 includes a first end 61 extending in the same direction as a second end 62, a third end 63 extending in a direction perpendicular to the first end 61 and the second end 62, and in other embodiments, the first end 61, the second end 62, and the third end 63 all intersect. The three-way valve 60 shown in fig. 1 is merely illustrative, and the structure of the three-way valve 60 is not limited thereto.

In one possible implementation, the scrubber 1 further comprises a handle 70 (shown in fig. 4), one end of the handle 70 being pivotally connected to the cleaning head 40, the tank 10 being mounted to the handle 70. In the present embodiment, the extending direction of the water tank 10 is the same as the extending direction of the handle 70. The water tank 10 is detachably connected with the handle 70, so that liquid can be conveniently injected into the water tank 10, when the water tank 10 is damaged, the floor washing machine 1 can normally work by replacing the water tank 10, the new floor washing machine 1 does not need to be replaced, and the cost is saved. By means of the handle 70, the floor can be cleaned without stooping down or squatting.

In one embodiment, the water tank 10 is mounted to the handle 70 on a side thereof adjacent to the cleaning head 40, and the water tank 10 is disposed adjacent to the cleaning head 40, so that the liquid in the water tank 10 can be delivered to the cleaning head 40 more quickly, and the length of the pipeline 20 is reduced; on the other hand, when the floor washing machine 1 is used, the water tank 10 is disposed close to the cleaning head 40, which can save more labor.

In one possible implementation, a wire slot 71 (shown in fig. 4) is provided on the handle 70, the conduit 20 is located in the wire slot 71, the conduit 20 includes a first section 21 and a second section 22 connected to each other, and the check valve 30 is located between the first section 21 and the second section 22 and at an end of the first section 21 and the second section 22 away from the cleaning head 40. The pipeline 20 is n-shaped, the line groove 71 is positioned at one side of the handle 70 close to the water tank 10, when the water tank 10 is installed on the handle 70, the pipeline 20 is positioned between the water tank 10 and the handle 70, and the line groove 71 is arranged, so that on one hand, the pipeline 20 is limited to the line groove 71, and the pipeline 20 can be relatively fixed and more regular; on the other hand, the overall volume of the scrubber 1 can be reduced; on the other hand, tank 10 covers conduit 20, which may enhance the appearance of scrubber 1 and allow tank 10 to be better mounted to handle 70.

In one embodiment, the liquid in the first section 21 flows generally high and the liquid in the second section flows generally low, and the liquid in the conduit 20 flows higher and then flows to the lower cleaning head 40, and the one-way valve 30 is in communication with the highest conduit 20, which arrangement provides improved protection against leakage from the tank 10.

In a possible implementation, the scrubber 1 further comprises a three-way valve 60, the three-way valve 60 comprising a first end 61, a second end 62 and a third end 63, the first section 21 communicating the tank 10 with the first end 61, the second section 22 communicating the second end 62 with the cleaning head 40, the third end 63 communicating with one end of the one-way valve 30; the handle 70 is further provided with a first groove 72 and a second groove 73, the first groove 72 and the second groove 73 are respectively used for accommodating the three-way valve 60 and the one-way valve 30, and the wire groove 71, the first groove 72 and the second groove 73 are arranged side by side along the extending direction of the handle 70. The pipeline 20, the three-way valve 60 and the one-way valve 30 are arranged along the extending direction of the handle 70, so that the longitudinal volume of the handle 70 is fully utilized, the handle 70 is more slender integrally, and the integral volume of the floor washing machine 1 can be reduced.

In one possible implementation, the floor washing machine 1 further comprises a handle 70, one end of the handle 70 being rotatably connected to the cleaning head 40, the water tank 10 being mounted to the handle 70; the side of the water tank 10 close to the handle 70 is provided with a wire groove 71 which is concave towards the inside of the water tank 10, the pipeline 20 is positioned in the wire groove 71, the pipeline 20 comprises a first section 21 and a second section 22 which are connected, and the one-way valve 30 is positioned between the first section 21 and the second section 22 and is positioned at one end of the first section 21 and the second section 22 which are far away from the cleaning head 40. Due to the arrangement of the wire grooves 71, on one hand, the pipelines 20 are limited to the wire grooves 71, and the pipelines 20 can be relatively fixed and are more regular; on the other hand, the overall volume of the scrubber 1 can be reduced; on the other hand, the water tank 10 covers the pipe 20, which can beautify the appearance of the floor washing machine 1.

The floor washing machine provided by the embodiment of the application is described in detail, a specific embodiment is applied to explain the principle and the embodiment of the application, and the description of the embodiment is only used for helping to understand the method and the core idea of the application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. A floor washing machine is characterized by comprising a water tank, a pipeline and a one-way valve, wherein the water tank is used for containing liquid; the pipeline is communicated with the water tank and is used for conveying the liquid in the water tank to the cleaning head; one end of the one-way valve is communicated with the pipeline, when the pressure in the pipeline is lower than the pressure outside the pipeline, the one-way valve is opened, and air outside the pipeline enters the pipeline through the one-way valve; when the pressure in the pipeline is greater than or equal to the pressure outside the pipeline, the one-way valve is closed.

2. The floor washing machine as claimed in claim 1, wherein the one-way valve comprises a valve body, a valve core, a first port and a second port, the valve core is located between the first port and the second port, and one end of the first port far away from the second port is communicated with the pipeline;

when the pressure in the pipeline is greater than or equal to the pressure outside the pipeline, the valve core abuts against one end of the second hole passage close to the first hole passage, so that the one-way valve is closed; when the pressure inside the pipeline is lower than the pressure outside the pipeline, the valve core, the first pore passage and the second pore passage are arranged at intervals, so that the check valve is opened, and air outside the pipeline enters the pipeline through the second pore passage and the first pore passage in sequence.

3. The floor scrubber of claim 1, wherein a distance between at least a portion of the conduit and the cleaning head is greater than or equal to a distance between a middle portion of the tank and the cleaning head; or

At least part of the pipeline is away from the cleaning head by a distance which is larger than or equal to the distance between the highest water level line of the water tank and the cleaning head.

4. The floor scrubber of claim 1, further comprising a pump mounted in the conduit between the tank and the one-way valve for driving fluid in the tank to the cleaning head, wherein when the pump is off such that the pressure in the conduit is less than the pressure outside the conduit, the one-way valve opens and air outside the conduit passes through the one-way valve into the conduit.

5. The scrubber of claim 4, wherein the one-way valve is located between the pump and a portion of the conduit furthest from the cleaning head.

6. The floor washing machine as claimed in claim 4, wherein the water tank is provided with an air inlet hole, the air inlet hole is opened when the pump is operated so that air outside the water tank enters the water tank, and the air inlet hole is closed when the pump is stopped.

7. The floor scrubber of any of claims 1-6, further comprising a three-way valve including a first end, a second end, and a third end, the conduit including a first section and a second section, the first section communicating the water tank and the first end, the second section communicating the second end and the cleaning head, and the third end communicating one end of the one-way valve.

8. The floor scrubber of any of claims 1-6, further comprising a handle having one end rotatably connected to the cleaning head, the tank being mounted to the handle;

be equipped with the wire casing on the handle, the pipeline is located the wire casing is internal, the pipeline is including the first section and the second section that are connected, the check valve is located first section with just be located between the second section first section with the second section is kept away from the one end of cleaning head.

9. The floor scrubber of claim 8, further comprising a three-way valve including a first end in communication with the tank and the first end, a second end in communication with the second end and the cleaning head, and a third end in communication with one end of the one-way valve;

the handle is further provided with a first groove and a second groove, the first groove and the second groove are used for containing the three-way valve and the one-way valve respectively, and the wire grooves, the first groove and the second groove are arranged side by side along the extending direction of the handle.

10. The floor scrubber of any of claims 1-6, further comprising a handle having one end rotatably connected to the cleaning head, the tank being mounted to the handle;

the water tank is close to one side of handle is equipped with the orientation the inside sunken wire casing of water tank, the pipeline is located the wire casing, the pipeline is including the first section and the second section that are connected, the check valve is located first section with just be located between the second section first section with the second section is kept away from the one end of cleaning head.

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