CN215914471U

CN215914471U - Cleaning device's sewage case and cleaning device

Info

Publication number: CN215914471U
Application number: CN202122040166.4U
Authority: CN
Inventors: 刘望; 罗光忠; 罗平
Original assignee: Beijing Rockrobo Technology Co Ltd
Current assignee: Beijing Rockrobo Technology Co Ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-03-01
Anticipated expiration: 2031-08-26

Abstract

The utility model provides a sewage tank of a cleaning device and the cleaning device, wherein the sewage tank of the cleaning device comprises: a housing having a water inlet tube disposed therein, the water inlet tube having a water inlet and a water outlet, the water outlet extending into an interior space of the housing; the backflow prevention component is arranged at the water outlet of the water inlet pipe and is provided with a first state enabling the water outlet of the water inlet pipe to be opened and a second state enabling the water outlet of the water inlet pipe to be closed. Set up and have the anti-backflow part that can overturn in inlet tube water inlet department, except under the water intake state, anti-backflow part upset for the water inlet is opened, under other states, anti-backflow part can cover the water inlet, can be when sewage case slopes, sewage flows back the inlet channel when preventing the slope of sewage case, in order to cause the filth to leak and pollute ground, set up like this and make cleaner place the angle more free, even if inclination is great, sewage in the sewage case can not flow back and leak yet.

Description

Cleaning device's sewage case and cleaning device

Technical Field

The utility model relates to the technical field of recycling boxes, in particular to a sewage tank of cleaning equipment and the cleaning equipment.

Background

The floor cleaning machine can suck large solid garbage (dry garbage) on the ground and sewage (wet garbage) into the sewage tank in the process of cleaning the ground, and the large solid garbage and the sewage need to be separated for the convenience of cleaning the sewage tank by a user.

However, the contaminants sucked into the sewage tank may leak out and contaminate the floor.

SUMMERY OF THE UTILITY MODEL

Objects of the utility model

The utility model aims to provide a sewage tank of a cleaning device and the cleaning device, which can prevent sewage from flowing back to a water inlet pipeline when the sewage tank is inclined, so that the sewage can leak out and pollute the ground.

(II) technical scheme

To solve the above problems, a first aspect of an embodiment of the present invention provides a sewage tank of a cleaning apparatus, including: a housing having a water inlet tube disposed therein, the water inlet tube having a water inlet and a water outlet, the water outlet extending into an interior space of the housing; the backflow prevention component is arranged at the water outlet of the water inlet pipe and is provided with a first state enabling the water outlet of the water inlet pipe to be opened and a second state enabling the water outlet of the water inlet pipe to be closed.

Optionally, the backflow preventing component is a cover part rotatably connected with the pipe wall at the water outlet; when the cover is positioned at the first position, the water outlet of the water inlet pipe is opened; when the cover is located at the second position, the water outlet of the water inlet pipe is closed.

Optionally, the waste water tank of the cleaning device further comprises an elastic member, the elastic member is respectively connected with the cover part and the pipe wall at the water outlet to exert a force for positioning the cover part at the first position, and the cover part is rotated to the second position by overcoming the force for positioning the cover part at the first position.

Optionally, the cover part is connected with the pipe wall at the water outlet through a rotating shaft; the elastic piece is a torsion spring, the torsion spring is sleeved outside the rotating shaft and provided with a first connecting end and a second connecting end, and the pipe wall at the water outlet is provided with a first fixing part for fixing the first connecting end; the cover part is provided with a second fixing part for fixing the second connecting end; the second connecting end rotates around the rotating shaft, so that the cover part is switched between a first position and a second position.

Optionally, the sump of the cleaning device further comprises: the separation device is detachably connected with the water inlet pipe and comprises an installation part and a separation part; wherein the mounting part is sleeved on the outer wall of the water inlet pipe; the separation part extends from the outer wall of the mounting part to the inner wall of the shell along the radial direction of the water inlet pipe; the backflow preventing component is a cover part which is rotatably connected with the mounting part; when the cover is positioned at the first position, the water outlet of the water inlet pipe is opened; when the cover is located at the second position, the water outlet of the water inlet pipe is closed.

Optionally, the dirty water tank of the cleaning apparatus further includes elastic members respectively connecting the cover part and the mounting part to apply a force to position the cover part at the first position, and rotating the cover part to the second position against the force to position the cover part at the first position.

Optionally, the cover part is connected with the mounting part through a rotating shaft; the elastic element is a torsion spring, the torsion spring is sleeved outside the rotating shaft, and the torsion spring is provided with a first connecting end and a second connecting end; the mounting part is provided with a first fixing part for fixing the first connecting end; the cover part is provided with a second fixing part for fixing the second connecting end; the second connecting end rotates around the rotating shaft, so that the cover part is switched between a first position and a second position.

Optionally, when the separating apparatus is removably connected to the inlet conduit, the separating portion is spaced from the bottom wall of the housing such that the space defined by the separating portion and the bottom wall of the housing is approximately 1/4 of the housing space.

Optionally, the separation device further comprises: spacing portion, with the installation department is connected, spacing portion be used for with the play water end butt of inlet tube, in order to restrict the installation department with the relative sliding distance of inlet tube.

A second aspect of an embodiment of the present invention provides a cleaning apparatus including: a support; a fan assembly disposed on the bracket, the foul water tank, the clean water tank and the control lever of the cleaning device according to any one of the first aspect of the embodiments of the present invention; the floor brush is connected with the sewage tank through a sewage suction pipeline.

(III) advantageous effects

The technical scheme of the utility model has the following beneficial technical effects:

a backflow prevention component capable of being turned over is arranged at the water inlet of the water inlet pipe, and the backflow prevention component is turned over under the action of the suction force of the fan and/or the inflow water flow in the water inlet state, so that the water inlet is opened; under other states, prevent that the component of flowing backwards can cover the water inlet, can be when the sewage case slope, sewage backward flow inlet channel when preventing the slope of sewage case to cause the filth to leak and pollute ground, set up like this and make cleaning device's the angle of placing more free, even if inclination is great, sewage in the sewage case can not flow backward yet and leak.

Drawings

FIG. 1 is a schematic view showing a configuration in which a backflow preventing member is opened in a sump tank of a cleaning apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view showing a configuration in which a backflow preventing member is closed in a sump of the cleaning apparatus according to the embodiment of the present invention;

FIG. 3 is a schematic view showing the structure of the outer case of the sump of the cleaning apparatus according to the embodiment of the present invention;

fig. 4 is a partial enlarged view at a in fig. 1;

FIG. 5 is a schematic view showing a configuration in which a backflow preventing member is opened in a sump of a cleaning apparatus including a separating device according to an embodiment of the present invention;

FIG. 6 is a schematic view showing a configuration in which a backflow preventing member is closed in a sump of the cleaning apparatus including the separating device according to the embodiment of the present invention;

FIG. 7 is a schematic view of the separating apparatus and the opening of the backflow prevention member according to the embodiment of the present invention;

FIG. 8 is a schematic view of a separating apparatus and a closed backflow prevention member according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a separation device including a blocking edge according to an embodiment of the present invention.

Reference numerals:

10: a housing; 11: a first housing; 12: a second housing; 20: a water inlet pipe; 30: a backflow prevention member; 40: an elastic member; 50: a separation device; 51: an installation part; 52: a separation section; 53: a limiting part; 54: a flange; 60: a floating device; 70: a guide portion.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

In the drawings, there is shown a schematic structural diagram according to an embodiment of the utility model. The figures are not drawn to scale, wherein certain details may be omitted for the sake of clarity. The various shapes shown in the drawings and the relative sizes and positional relationships therebetween are merely exemplary, and in practice, there may be deviations due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design to have different shapes, sizes and relative positions as actually required.

It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The utility model will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by like reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale.

In a first embodiment of the present invention, as shown in fig. 1-2, there is provided a sewage tank of a cleaning apparatus, which mainly comprises a housing 10 and a backflow preventing member 30. Wherein, a water inlet pipe 20 is arranged in the housing 10, the water inlet pipe 20 has a water inlet and a water outlet, the water outlet extends to the inner space of the housing 10; the backflow preventing member 30 is disposed at the water outlet of the inlet pipe 20, and has a first state in which the water outlet of the inlet pipe 20 is opened and a second state in which the water outlet of the inlet pipe 20 is closed.

Alternatively, the cross-sectional shape of inlet conduit 20 includes, but is not limited to, circular, polygonal, or irregular. The water inlet of the water inlet pipe 20 can be arranged outside the shell 10 so as to be convenient for butt joint with an external pipeline, and the water inlet of the water inlet pipe 20 can also be arranged on the wall part of the shell 10, so that the shape of the sewage tank is more regular, the waste of space is avoided, the space of the sewage tank and the space for installing the sewage tank are further saved so as to be convenient for placement, and meanwhile, the interference conflict with other parts can also be reduced; the inlet of the inlet pipe 20 is preferably arranged at the bottom wall of the housing 10, the inlet pipe 20 extends upwards from the bottom of the waste water tank, the inlet pipe 20 can be used as a mounting structure for detachable connection with a separating device 50 which will be described later, and in addition, the upwards extending inlet pipe 20 conforms to the moving direction of fluid in work, so that pipelines are saved, and space is saved; the water outlet of the water inlet pipe 20 is far away from the bottom of the shell 10, so that sewage in the sewage tank is not easy to spill out from the water outlet of the water inlet pipe 20, and the sewage tank has good backflow prevention property when being placed upright. The backflow preventing member 30 may be a check valve, so that the inflow water flows into the sewage tank from the outlet of the inlet pipe 20, and the sewage in the sewage tank cannot flow back into the inlet pipe 20 from the check valve; the backflow preventing member 30 may also be a cover that opens the water outlet or closes the water outlet of the water inlet pipe 20 by an external force.

In this embodiment, a backflow prevention component 30 capable of being turned over is arranged at the water inlet of the water inlet pipe 20, and in the water inlet state, the backflow prevention component 30 is turned over under the action of the suction force of the fan and/or the water inflow, so that the water inlet is opened; under other states, prevent that the component of flowing backwards can cover the water inlet, can be when the sewage case slope, sewage backward flow inlet channel when preventing the slope of sewage case to cause the filth to leak and pollute ground, set up like this and make cleaning device's the angle of placing more free, even if inclination is great, sewage in the sewage case can not flow backward yet and leak.

In some embodiments, the backflow prevention member 30 is a cap rotatably coupled to the wall of the outlet; wherein, when the cover part is positioned at the first position, the water outlet of the water inlet pipe 20 is opened; when the cover is in the second position, the outlet of the inlet tube 20 is closed. The backflow prevention part arranged in this way minimizes the parts for realizing the backflow prevention function, and thus, the cost is reduced and the space utilization rate is maximized.

Optionally, the housing 10 is connected to a fan assembly, the fan assembly generates an air flow forming a negative pressure in an operating state, an air inlet end of the fan assembly is communicated with an air outlet end of the housing 10, the air flow enables the housing 10 to generate a negative pressure, sewage is sucked into the housing 10 through the water inlet pipe 20 in the negative pressure state, and at this time, the cover opens a water outlet of the water inlet pipe 20 to avoid the sewage; after the fan assembly is closed, the cover part closes the water outlet of the water inlet pipe 20, and sewage is prevented from flowing back to the water inlet pipe 20 and then leaking out of the sewage tank.

In some embodiments, as shown in fig. 4, the waste tank of the cleaning device further comprises an elastic member 40, and the elastic member 40 connects the cover part and the pipe wall at the water outlet respectively, so as to apply a force to make the cover part located at the first position, and to rotate the cover part to the second position against the force to make the cover part located at the first position.

Optionally, the cover part is switched between a first position and a second position through the elastic member 40, and when the cover part is in the first position, the cover part is far away from the water outlet of the water inlet pipe 20 to avoid sewage; when the initial position of the cover part is the second position, the water outlet of the water inlet pipe 20 is covered by the cover part to be closed; when the cover is in the second position, the elastic member 40 continues to overcome the elastic force until the cover returns to the second position.

In some embodiments, the cover part is connected with the pipe wall at the water outlet through a rotating shaft; the elastic element 40 is a torsion spring, the torsion spring is sleeved outside the rotating shaft and is provided with a first connecting end and a second connecting end, and the pipe wall at the water outlet is provided with a first fixing part for fixing the first connecting end; the cover part is provided with a second fixing part for fixing the second connecting end; the second connecting end rotates around the rotating shaft, so that the cover part is switched between the first position and the second position.

Alternatively, the first fixing portion may be a through hole or a blind hole as long as the connecting end of the torsion spring can be fixed. The first link of torsional spring is the stiff end, and the second link of torsional spring is free end (rotation end), realizes through the rotation of second link that the cover is located primary importance or second place, and then realizes the closure and the opening of cover and inlet tube 20 delivery port.

In some embodiments, as shown in fig. 5 to 8, the foul water tank of the cleaning apparatus further includes a separating device 50, the separating device 50 being detachably coupled to the inlet pipe 20, the separating device 50 including a mounting portion 51 and a separating portion 52; wherein, the mounting part 51 is sleeved on the outer wall of the water inlet pipe 20; the separating portion 52 extends from the outer wall of the mounting portion 51 to the inner wall of the housing 10 in the radial direction of the inlet pipe 20; the backflow preventing member 30 is a cover portion rotatably connected to the mounting portion 51; wherein, when the cover part is positioned at the first position, the water outlet of the water inlet pipe 20 is opened; when the cover is in the second position, the outlet of the inlet tube 20 is closed.

Optionally, the mounting portion 51 has a through hole, such that the mounting portion 51 is disposed to cover the outer wall of the water inlet pipe 20, and the cross-sectional shape of the mounting portion 51 includes, but is not limited to, a circle, a polygon or a special shape, so as to realize that the inner wall of the through hole of the mounting portion 51 is tightly attached to the outer wall of the water inlet pipe 20, such that the mounting of the separation device 50 and the water inlet pipe 20 is more stable; the installation part 51 and the water inlet pipe 20 slide relatively along the outer wall of the water inlet pipe 20, so that the separation device 50 is detachably connected with the water inlet pipe 20; the separating part 52 is arranged on the mounting part 51 and extends from the outer wall of the mounting part 51 to the inner wall of the shell 10 along the radial direction of the water inlet pipe 20, the water inlet pipe 20 extending upwards forms an upwards extending wall in the center of the separating part 52, so that solid garbage is prevented from falling to the lower part of the separating part 52 from the middle, and dry and wet separation is completely realized, and the dry garbage can be only positioned on one side of the separating part 52, so that the cleaning by a user is convenient; the edge of the separating part 52 can be tightly attached to the inner wall of the shell 10, so that the installation is more stable and the filtering effect is more reliable; the edge of the separation part 52 may be spaced apart from the inner wall of the housing 10, so that the sewage can pass through the separation part more easily and the sewage is not easy to overflow even if the amount of the sewage is large. The bottom surface of the separating part 52 may contact with the bottom wall of the housing 10, or may be spaced from the bottom wall of the housing 10; when a user cleans the sewage tank, the user only needs to pull out the separating device 50, namely, the separating device 50 and the water inlet pipe 20 are separated through relative sliding, in the relative sliding process, the separating part 52 moves upwards, sewage enters the lower part of the separating part 52 through the separating part 52, and dry garbage cannot pass through the separating part 52 and can exist on the upper surface of the separating part 52 to separate the dry garbage from the wet garbage, so that the arrangement is convenient for the user to clean; the backflow preventing part 30 is rotatably connected with the mounting part 51, so that the sewage tank including the water inlet pipe 20 is simpler in structure, the modularized design facilitates production and processing, the separation device 50 is more conveniently sleeved and mounted, and the disassembly and mounting of a user are facilitated.

In some embodiments, the foul water tank of the cleaning apparatus further includes elastic members 40, and the elastic members 40 respectively connect the cover part and the mounting part 51 to apply a force to position the cover part at the first position and rotate the cover part to the second position against the force to position the cover part at the first position.

Optionally, the cover part is connected with the mounting part 51 through the elastic member 40, and realizes the conversion between the first position and the second position, when the cover part is at the first position, the cover part is far away from the water outlet of the water inlet pipe 20 to avoid the sewage; when the initial position of the cover part is the second position, the water outlet of the water inlet pipe 20 is covered by the cover part to be closed; when the cover is in the second position, the elastic member 40 continues to overcome the elastic force until the cover returns to the second position.

In some embodiments, the cover portion and the mounting portion 51 are connected by a rotating shaft; the elastic element 40 is a torsion spring, the torsion spring is sleeved outside the rotating shaft, and the torsion spring is provided with a first connecting end and a second connecting end; the mounting portion 51 is provided with a first fixing portion for fixing the first connection end; the cover part is provided with a second fixing part for fixing the second connecting end; the second connecting end rotates around the rotating shaft, so that the cover part is switched between the first position and the second position.

Alternatively, the cover portion and the mounting portion 51 are respectively provided with a fixing portion for fixing the connecting end of the torsion spring, and the fixing portion may be a through hole or a blind hole as long as the connecting end of the torsion spring can be fixed. The first connecting end of the torsion spring is a fixed end, the second connecting end of the torsion spring is a free end (a rotating end), and the cover part and the water outlet of the water inlet pipe 20 are closed and separated through rotation of the second connecting end.

In some embodiments, when the separating apparatus 50 is removably attached to the inlet conduit 20, the separating portion 52 is spaced from the bottom wall of the housing 10 such that the space defined by the separating portion 52 and the bottom wall of the housing 10 is approximately 1/4 of the space of the housing 10.

Optionally, the separating portion 52 is spaced from the bottom wall of the housing 10, so that after the separating device 50 is installed in place, the separating portion 52 is suspended, and a space defined by the separating portion 52 and the bottom wall of the housing 10 is a water storage (sewage) space, so that sewage entering the housing 10 passes through the filtering holes and then is stored in the water storage space, and the size of the water storage space is preferably about 1/4 of the space of the housing 10. The ratio of the water storage space to the housing 10 space can be adjusted according to actual conditions. The interval is provided with the memory location who helps the lifting solid waste, and when sewage is less, solid-liquid separation can directly be realized to solid waste and sewage, and when sewage is more, also can accelerate the separating rate of solid waste and sewage, reduces the sewage and remains and be taken out the possibility of polluted environment together on solid waste.

In some embodiments, the separating device 50 further includes a limiting portion 53, the limiting portion 53 is connected to the mounting portion 51, and the limiting portion 53 is configured to abut against the water outlet of the water inlet pipe 20 to limit the relative sliding distance between the mounting portion 51 and the water inlet pipe 20. The presence of the limiting portion 53 allows the relative positional relationship between the separating apparatus 50 and the water inlet pipe 20 to be more accurate, and the desired technical effects of various dimensional designs to be better achieved.

Optionally, a position of the mounting portion 51 corresponding to the water outlet of the water inlet pipe 20 is provided with a limiting portion 53. When inlet tube 20 is circular pipeline, spacing portion 53 can be the annular, spacing portion 53 with the pipe wall of inlet tube 20 in the axial of inlet tube 20 on the butt, spacing portion 53 the interior circle preferred with circular delivery port coaxial arrangement, through spacing portion 53 restriction installation department 51 with the relative sliding distance of inlet tube 20, installation department 51 is to the gliding maximum distance of outer wall along inlet tube 20 downwards to spacing portion 53 promptly.

In some embodiments, the separation portion 52 is provided with filter holes for separating the dry garbage and the sewage.

Alternatively, the separating part 52 is plate-shaped, and the axial direction of the filter holes is provided perpendicular to the separating part 52. Sewage can pass through the filter holes, and dry garbage cannot pass through the filter holes; the dry garbage collecting surface is positioned on the upper surface of the separating part 52, and the dry garbage collecting surface is a plane which can enable dry garbage to stably exist in the process that the separating device 50 and the water inlet pipe 20 slide relatively, so that the dry garbage cannot slide and leak or concentrate on one position to block the filter holes, and the dry garbage collecting surface is convenient for a user to clean the dry garbage.

In some embodiments, as shown in FIG. 9, the outer edge of the separation portion 52 is provided with an upwardly extending catch 54.

The fender edge 54 that upwards extends can block the dry rubbish that is located separation portion 52 edge and fall in the sewage of below for will do rubbish and concentrate on separation portion 52 one side, be convenient for concentrate the clearance, realize the thorough separation of dry wet rubbish more easily, reduced the degree of difficulty of the dry rubbish of clearance, improve clean efficiency.

Alternatively, the mounting portion 51 and the separating portion 52 are integrally formed.

Alternatively, the mounting portion 51, the separating portion 52, and the stopper portion 53 are integrally formed.

Alternatively, the mounting portion 51, the separating portion 52, the stopper portion 53, and the stopper edge 54 are integrally formed.

In some embodiments, as shown in fig. 3, the casing 10 includes a first casing 11 and a second casing 12, an air inlet end of the first casing 11 is communicated with an air outlet end of the second casing 12; the first housing 11 is provided with a guide 70, and the separating apparatus 50 is located in the second housing 12; at least a part of the installation part 51 is sleeved with the guide part 70, so that a sewage flow passage is formed between the inner wall of the guide part 70 and the outer wall of the installation part 51.

Optionally, the first housing 11 and the second housing 12 are detachably connected by clamping. The guide portion 70 of the first housing extends downward from the lower surface of the first housing 11 to the inside of the second housing 12, and corresponds to the water inlet pipe 20, the guide portion 70 is disposed to cover the mounting portion 51, and a gap is formed between the guide portion 70 and the mounting portion 51, so that a sewage flow passage is formed between the inner wall of the guide portion 70 and the outer wall of the mounting portion 51, and the sewage flowing out from the water inlet pipe 20 flows along the sewage to the separation portion 52 for separation.

Alternatively, the guide 70 is provided coaxially with the inlet pipe 20.

In some embodiments, the first housing 11 is provided with an air inlet end; a floating unit 60 is provided in the second housing 12, and the sewage flowing out of the inlet pipe 20 acts on the floating unit 60 to apply a force for hermetically connecting the floating unit 60 with the inlet end when the water level is sufficiently high.

Optionally, first casing 11 is connected with the fan subassembly, this fan subassembly is used for producing the air current that has suction, the air-out end of first casing 11 and the air inlet end intercommunication of fan subassembly, the air inlet end of first casing 11 and the air-out end intercommunication of second casing 12 for inhale to the shell 10 behind the inlet tube 20 with sewage in, along with the accumulation of sewage in the shell 10, the sewage liquid level rises, sewage provides the buoyancy that upwards floats for floating device 60, floating device 60 and the air inlet end butt of first casing 11 under the effect of buoyancy, realize the sealed back, the air current that has suction is obstructed, sewage no longer gets into shell 10 through inlet tube 20.

In some embodiments, the first housing 11 is provided with a guide portion 70, and the guide portion 70 is used for moving the floating device 60 to the air inlet end along a predetermined direction, so that the floating device 60 is connected with the air inlet end in a sealing manner.

Optionally, the upper end of the guide portion 70 is communicated with the air inlet end of the first housing 11, the lower end of the guide portion 70 extends into the second housing 12, and the floating device 60 in the guide portion 70 slides along the inner wall of the guide portion 70 under the action of buoyancy until abutting against the air inlet end of the first housing 11, so as to achieve a sealing effect.

In some embodiments, the first housing 11 is provided with a guiding portion 70, one end of the guiding portion 70 is communicated with the air inlet end, the other end of the guiding portion 70 is located in the second housing 12, and the guiding portion 70 accommodates at least part of the floating device 60; under the action of buoyancy, the floating device 60 slides along the inner wall of the guide part 70 and along the axial direction of the guide part 70 to the air inlet end, so that the floating device 60 is hermetically connected with the air inlet end.

In some embodiments, the float device 60 is a float ball; the inner wall of the second shell 12 is connected with a connecting rod in a sliding manner, and the floating ball is connected along the inner wall of the second shell 12 in a sliding manner through the connecting rod; under the action of sewage, the floating ball slides to the air inlet end along the inner wall of the second shell 12, so that the floating ball is connected with the air inlet end in a sealing manner.

Optionally, the floating device 60 is a floating ball, and the floating ball is slidably connected to the inner wall of the second housing 12 through a connecting rod, so that the floating ball cannot float randomly in the floating process, the floating track of the floating ball corresponds to the air inlet end of the first housing 11 in the longitudinal direction, and the connecting rod and the floating ball move synchronously.

In some embodiments, a float mount is provided within the housing 10, the float mount being provided with a guide slot; the floating device 60 has a floating housing with a hollow structure, and a sliding part is arranged on the surface of the floating housing and is in sliding connection with the guide groove; under the sewage effect, the floating shell slides along the guide way, so that the floating shell is close to the air inlet end of the first shell 11 to move, or the floating shell is far away from the air inlet end of the first shell 11 to move.

Optionally, the floating device mounting bracket corresponds to the air inlet end of the first housing 11, the floating device mounting bracket is provided with a guide groove extending along the longitudinal direction, the floating device 60 may be a floating housing with a designed length and a hollow structure, the outer wall surface of the floating housing is provided with a sliding protrusion protruding in the transverse direction, the sliding protrusion is in sliding connection with the guide groove of the two side walls of the floating device mounting bracket in a matching manner, when the sewage level in the sewage tank rises, the floating housing slides along the guide groove and moves close to the air inlet end of the first housing 11; when the sewage liquid level in the sewage tank descends, the floating shell slides along the guide groove, and the air inlet end far away from the first shell 11 moves.

A second aspect of an embodiment of the present invention provides a cleaning apparatus including: a support; a fan assembly disposed on the frame, the foul water tank, the clean water tank and the joystick of the cleaning device of any one of the first to fourth aspects of the embodiments of the present invention; the floor brush is connected with the sewage tank through a sewage suction pipeline.

In some embodiments, the cleaning apparatus further comprises a charging post.

Optionally, the cleaning device is a floor scrubber, the frame of which is fitted with a joystick, a clean water tank, a fan assembly, a dirty water tank and a floor brush from top to bottom. The operating rod is used for controlling the working state of the cleaning device; the water purifying tank provides purified water for cleaning the cleaning equipment; the fan assembly provides suction for dirt suction; the floor brush is used for cleaning the bottom surface.

1. a backflow prevention component 30 capable of being turned over is arranged at the water inlet of the water inlet pipe 20, and the backflow prevention component 30 is turned over under the action of the suction force of the fan and/or the inflow water flow in the water inlet state, so that the water inlet is opened; under other states, prevent that the component of flowing backwards can cover the water inlet, can be when the sewage case slope, sewage backward flow inlet channel when preventing the slope of sewage case to cause the filth to leak and pollute ground, set up like this and make cleaning device's the angle of placing more free, even if inclination is great, sewage in the sewage case can not flow backward yet and leak.

2. The embodiment of the application also comprises a separating device 50, the separating device 50 is detachably connected with the water inlet pipe 20 through a sleeve, so that the assembly by a user is convenient, in addition, the separating device 50 and the backflow preventing device can form a modularized component together, the production is convenient, and the separating device is matched with different sewage tanks for use.

3. When the backflow preventing component 30 is a cover, the fan assembly can be used to generate airflow forming negative pressure in a working state, the airflow enables the shell 10 to generate negative pressure, sewage is sucked into the shell 10 through the water inlet pipe 20 in the negative pressure state, and at the moment, the cover opens the water outlet of the water inlet pipe 20 to avoid the sewage; after the fan assembly is closed, the water outlet of the water inlet pipe 20 is closed by the cover, so that sewage is prevented from flowing back to the water inlet pipe 20 and then leaking out of the sewage tank, sewage leakage can be effectively prevented by the arrangement, the structure is simple, and the production cost can be reduced.

The utility model has been described above with reference to embodiments thereof. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be devised by those skilled in the art without departing from the scope of the utility model, and these alternatives and modifications are intended to be within the scope of the utility model.

Claims

1. A sump tank for a cleaning appliance, comprising:

a housing (10) having a water inlet pipe (20) disposed therein, the water inlet pipe (20) having a water inlet and a water outlet, the water outlet extending to an inner space of the housing (10);

the backflow prevention component (30) is arranged at the water outlet of the water inlet pipe (20) and is provided with a first state enabling the water outlet of the water inlet pipe (20) to be opened and a second state enabling the water outlet of the water inlet pipe (20) to be closed.

2. The waste tank as claimed in claim 1, wherein the backflow preventing member (30) is a cover rotatably coupled to a wall of the water outlet;

when the cover is positioned at the first position, the water outlet of the water inlet pipe (20) is opened; when the cover part is positioned at the second position, the water outlet of the water inlet pipe (20) is closed.

3. The wastewater tank according to claim 2, further comprising an elastic member (40),

the elastic piece (40) is respectively connected with the cover part and the pipe wall at the water outlet so as to apply force for enabling the cover part to be located at the first position, and the cover part is rotated to the second position by overcoming the force for enabling the cover part to be located at the first position.

4. The waste water tank as claimed in claim 3,

the cover part is connected with the pipe wall at the water outlet through a rotating shaft;

the elastic piece (40) is a torsion spring, the torsion spring is sleeved outside the rotating shaft and is provided with a first connecting end and a second connecting end, and a first fixing part is arranged on the pipe wall of the water outlet and used for fixing the first connecting end;

the cover part is provided with a second fixing part for fixing the second connecting end;

the second connecting end rotates around the rotating shaft, so that the cover part is switched between a first position and a second position.

5. The wastewater tank of claim 1, further comprising:

the separation device (50) is detachably connected with the water inlet pipe (20), and the separation device (50) comprises a mounting part (51) and a separation part (52); wherein the content of the first and second substances,

the mounting part (51) is sleeved on the outer wall of the water inlet pipe (20);

the separation part (52) extends from the outer wall of the mounting part (51) to the inner wall of the housing (10) along the radial direction of the water inlet pipe (20);

the backflow preventing component (30) is a cover part which is rotatably connected with the mounting part (51);

6. The wastewater tank according to claim 5, further comprising an elastic member (40),

the elastic member (40) is connected with the cover part and the mounting part (51) respectively to exert a force for enabling the cover part to be located at the first position, and the cover part is rotated to the second position by overcoming the force for enabling the cover part to be located at the first position.

7. The waste water tank as claimed in claim 6,

the cover part is connected with the mounting part (51) through a rotating shaft;

the elastic piece (40) is a torsion spring, the torsion spring is sleeved outside the rotating shaft, and the torsion spring is provided with a first connecting end and a second connecting end; the mounting part (51) is provided with a first fixing part for fixing the first connecting end;

8. The waste water tank as claimed in claim 5,

when the separating device (50) is detachably connected to the water inlet pipe (20), the separating part (52) is arranged at a distance from the bottom wall of the shell (10), so that the space defined by the separating part (52) and the bottom wall of the shell (10) is about 1/4 of the space of the shell (10).

9. The wastewater tank according to claim 5, characterized in that the separation device (50) further comprises:

spacing portion (53), with installation department (51) are connected, spacing portion (53) be used for with the play water end butt of inlet tube (20) in order to restrict installation department (51) with the relative sliding distance of inlet tube (20).

10. A cleaning apparatus, comprising:

a support;

a fan assembly disposed on the frame, the foul water tank, the clean water tank and the handle of the cleaning apparatus of any one of claims 1 to 9;

the floor brush is connected with the sewage tank through a sewage suction pipeline.