CN217218901U

CN217218901U - Cleaning robot

Info

Publication number: CN217218901U
Application number: CN202220136254.6U
Authority: CN
Inventors: 凌姝潼; 欧阳凡
Original assignee: Shenzhen Silver Star Intelligent Group Co Ltd
Current assignee: Shenzhen Silver Star Intelligent Group Co Ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-08-19
Anticipated expiration: 2032-01-17

Abstract

The utility model discloses a cleaning machines people, this cleaning machines people include stock solution structure and filter piece, the stock solution structure be provided with the stock solution chamber and with the interface of stock solution chamber intercommunication, filter piece demountable installation in stock solution structural and with the interface intercommunication. So set up, the cleaning solution can flow into the stock solution intracavity or flow from the stock solution chamber again through filtering after filtering, when filtering the piece jam, filter and can pull down from the stock solution is structural to change or clean, make cleaning machines people's clean effect better.

Description

Cleaning robot

Technical Field

The utility model relates to a cleaning device technical field, in particular to cleaning robot.

Background

Cleaning machines people such as mopping robot, sweeping robot on the market at present have all set up the filter mostly, and cleaning machines people can draw the cleaning solution from the water tank, is used for cleaning ground or carries out the automatically cleaning to cleaning member such as mop, round brush of self after the filter filters.

However, the filter and the cleaning robot body are in a non-detachable fixing structure, so when impurities in the filter are accumulated to cause blockage, the filter cannot be detached alone for cleaning or replacement, and the normal operation of the cleaning robot is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a cleaning robot, the filtration piece that aims at making cleaning robot can dismantle.

In order to achieve the above object, the utility model provides a cleaning robot, a serial communication port, cleaning robot includes the stock solution structure and filters the piece, the stock solution structure be provided with the stock solution chamber and with the interface of stock solution chamber intercommunication, filter piece demountable installation in structural and with the interface intercommunication of stock solution.

In some embodiments of the present invention, the filter member includes a filter tube and a filter element assembled to the filter tube, the filter tube is detachably connected to the liquid storage structure.

The utility model discloses an in some embodiments, the pilot hole has been seted up to the outer wall of stock solution structure, the filter tube stretches into can dismantle from the direction that stretches into in the pilot hole.

In some embodiments of the present invention, the assembly hole is opened at the bottom of the liquid storage structure and the axis is set to be vertical.

In some embodiments of the present invention, the filter tube is disposed in a taper shape, the end with a small outer diameter of the filter tube extends into the assembly hole, and the end with a large outer diameter of the filter tube is in interference fit with the assembly hole.

The utility model discloses an in some embodiments, the one end periphery wall that the filter tube external diameter is big is equipped with spacing arch, spacing arch with the terminal surface butt of pilot hole.

The utility model discloses an in some embodiments, the filter tube still is provided with hand portion of digging, hand portion of digging with spacing protruding fixed connection, hand portion of digging with the terminal surface interval of pilot hole sets up.

In some embodiments of the utility model, be provided with the installation funnel in the filter tube, the internal diameter of installation funnel is from its neighbouring one side of the end of intaking of filter tube is to its neighbouring one side of the play water end of filter tube reduces the setting gradually, the filter core install in the installation funnel.

In some embodiments of the present invention, the filter element comprises a filter cotton filter element and an activated carbon filter element, and the filter cotton filter element is installed on the water inlet side of the activated carbon filter element.

In some embodiments of the present invention, the water inlet end of the filtering pipe is formed with an insertion port, and the insertion port is connected to the interface in an insertion manner.

The utility model discloses a set up the stock solution chamber in the stock solution structure and with the interface of stock solution chamber intercommunication, will filter piece detachably and install in the stock solution structure and communicate with the interface, so set up, the cleaning solution can flow in the stock solution intracavity or flow from the stock solution chamber and filter again through filtering after filtering, when filtering the piece jam, filter and can follow the stock solution and structural pull down to change or clean, make cleaning machines people's clean effect better.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of a part of a cleaning robot according to an embodiment of the present invention;

FIG. 2 is a schematic view of the filter assembly of the present invention assembled to a liquid storage structure;

FIG. 3 is a schematic structural view of a filter member in the cleaning robot of the present invention;

fig. 4 is a cross-sectional view of a filter member in the cleaning robot according to the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Cleaning robot	122b	Active carbon filter element
110	Liquid storage structure	123	Spacing protrusion
				120	Filter element	124	Hand digging part
121	Filter tube	125	Mounting funnel
				122	Filter element	126	Screen with filter
122a	Filter cotton filter element	127	Interface

The realization, the functional characteristics and the advantages of the utility model are further explained by combining the embodiment and referring to the attached drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and is not within the protection scope of the present invention.

Referring to fig. 1 and 2, the present invention provides a cleaning robot 100, the cleaning robot 100 may be a floor mopping robot, a floor sweeping robot, a floor mopping and sweeping integrated robot, etc., the cleaning robot 100 includes a liquid storage structure 110 and a filter member 120, the liquid storage structure 110 is provided with a liquid storage cavity (not shown) and an interface (not shown) communicated with the liquid storage cavity, and the filter member 120 is detachably mounted on the liquid storage structure 110 and is communicated with the interface.

This stock solution structure 110 can be demountable installation in cleaning robot 100's water tank, also can be by the concave stock solution chamber that forms of cleaning robot 100's casing, and the liquid that stores in this stock solution chamber is the cleaning solution, and this cleaning solution can be water, also can be liquid such as detergent, does not do specific restriction here.

This liquid in stock solution intracavity can cooperate cleaning robot 100 to clean, for example, this cleaning robot 100 includes the mop, and the exhaust cleaning solution can directly be used for cleaning the mop in the stock solution intracavity, or just drench the mop thereby clean ground, if again, this cleaning robot 100 is provided with the scrubbing brush, and the water in the stock solution intracavity can be spilt subaerial, then the reuse scrubbing brush cleans.

The interface can be communicated with the liquid storage cavity through a pipeline, and can also be directly arranged on the peripheral wall of the liquid storage cavity. It should be noted that the cleaning liquid can be introduced into the reservoir through the interface, and the cleaning liquid in the reservoir can also be discharged through the interface.

This filter 120 kind is various, and this filter 120 can be filter, filter screen etc. for impurity in the filtration cleaning solution, like large particulate matter such as rust, silt, worm's ovum, can also add activated carbon in filtering piece 120, in order to get rid of the peculiar smell of cleaning solution, this filter 120 kind is also many, and this is not repeated here.

When the water inlet end of the filter element 120 is connected with the interface, the cleaning solution flows into the filter element 120 from the liquid storage cavity and is discharged, so that the cleaning solution is stored and then filtered, and is filtered immediately when in use, thereby ensuring the cleanliness of the cleaning solution; when the play water end of filtering piece 120 links to each other with the interface, the cleaning solution flows into the stock solution chamber from filtering piece 120, so set up, the cleaning solution filters earlier the back and stores, and the quantity is enough when guaranteeing to use.

This filter piece 120 demountable installation is various in stock solution structure 110's mode, can all set up the screw thread on filtering piece 120 and stock solution structure 110, with both threaded connection, also can set up magnet on stock solution structure 110, set up the metal block in filtering piece 120 outside and be used for inhaling mutually with magnet, it is fixed with stock solution structure 110 joint to also filter piece 120 with buckle spare, this filter piece 120 and stock solution structure 110 installation's mode is also many, do not do specific restriction here.

It should be noted that the cleaning solution may be pressurized and delivered by a water pump among the solution storage cavity, the interface and the filter element 120, so as to increase the circulation speed and the filtration efficiency of the cleaning solution, further, the water pump may be connected to the driving device of the cleaning robot 100 in a transmission manner, the driving device drives the water pump to pump water when the cleaning robot 100 is walking, and the water pump also stops running when the robot stops; the circulation mode of the cleaning liquid can also be that the cleaning liquid naturally flows down by utilizing gravity without pressurizing by a water pump, and the cleaning liquid circulation device has simple structure and lower cost and is not specifically limited.

The utility model discloses a set up stock solution chamber and with the interface of stock solution chamber intercommunication in stock solution structure 110, will filter piece 120 detachably and install on stock solution structure 110 and communicate with the interface, so set up, the cleaning solution can flow into the stock solution intracavity after filtering through filtering piece 120 or flow through filtering piece 120 from the stock solution chamber again, when filtering piece 120 and block up, filter piece 120 and can pull down from stock solution structure 110 to change or clean, make cleaning robot 100's clean effect better.

Referring to fig. 3 and 4, in some embodiments of the present invention, the filter element 120 includes a filter tube 121 and a filter element 122 assembled in the filter tube 121, and the filter tube 121 is detachably connected to the liquid storage structure 110. So set up, convenient processing preparation.

The filter tube 121 may be a steel tube or a plastic tube, which is not specifically limited herein, the filter element 122 may be various, such as a screen, PP cotton, activated carbon, etc., and one or more filter elements 122 may be disposed in the filter tube 121, which is not specifically limited herein; the filter element 122 and the filter pipe 121 are assembled in various ways, the filter element 122 can be bonded in the filter pipe 121, and the filter element 122 can also be clamped in the filter pipe 121, which is not limited specifically herein.

This filter tube 121 is various with stock solution structure 110 detachable mode, can set up an elastic buckle at the outer wall of this filter tube 121, sets up a joint mouth on stock solution structure 110, filter tube 121 and stock solution structure 110 joint, also can set up the sucking disc and adsorb on stock solution structure 110 at this filter tube 121 outer wall.

Preferably, referring to fig. 1 and 2, in some embodiments of the present invention, the outer wall of the liquid storage structure 110 is formed with an assembly hole, and the filter tube 121 extends into the assembly hole and can be detached from the extending direction. So configured, it is convenient for the user to perform the disassembling operation of the filter pipe 121 from the outside of the cleaning robot 100.

The position of the assembly hole can be the top of the liquid storage structure 110, or can be the side of the liquid storage structure 110, preferably, referring to fig. 1 and 2, in some embodiments of the present invention, the assembly hole is opened at the bottom of the liquid storage structure 110 and the axis is set to be vertical. So set up, the usable gravity of the cleaning solution that flows into in the filter tube 121 flows down naturally, can also avoid foreign matters such as dust, hair to get into and influence the filter effect even cause the jam in the filter tube 121.

Considering that when the filter member 120 is installed at the bottom of the liquid storage structure 110, the cleaning solution in the liquid storage cavity is discharged through the filter member 120, the filter member 120 as a water outlet can only spray water to mop on the floor mopping robot in a point-to-surface manner, and can not uniformly and completely wet the mop, or when the cleaning robot 100 brushes the floor by using the rolling brush, the spraying surface of the single filter member 120 is limited, so that only a part of the rolling brush can brush the floor by combining the cleaning solution.

In order to solve the above problem, in some embodiments of the present invention, the bottom of the liquid storage structure 110 is provided with a plurality of assembling holes and is correspondingly installed with a plurality of filtering pieces 120, and each filtering piece 120 is communicated with the interface. So set up, when the mop of mopping the ground robot need be drenched, filter 120 exhaust cleaning solution and can carry out a plurality of positions to the mop and spill simultaneously, drench the mop more comprehensively to promote clean effect, perhaps spill the cleaning solution when ground when filtering piece 120, a plurality of 120 simultaneous workings that filter, the watering face is bigger, has improved cleaning robot 100's cleaning efficiency.

Further, please refer to fig. 3 and 4, in order to avoid the problem that the user is difficult to insert when installing the filter tube 121 into the assembly hole, in some embodiments of the present invention, the filter tube 121 is disposed in a tapered shape, the end with the small outer diameter of the filter tube 121 extends into the assembly hole, and the end with the large outer diameter of the filter tube 121 is in interference fit with the assembly hole. So set up, the user only needs insert the pilot hole with the less one end of filter tube 121 external diameter earlier, and filter tube 121 is preinstalled in the pilot hole promptly, then the user hard with filter tube 121 push can, greatly made things convenient for the user to assemble filter tube 121.

Further, please refer to fig. 3 and 4, in order to prevent that the user from exerting too much force, press filter tube 121 into the pilot hole completely, lead to filter tube 121 to be difficult to pull out, in some embodiments of the utility model, the big one end periphery wall of filter tube 121 external diameter is equipped with spacing arch 123, spacing arch 123 and the terminal surface butt of pilot hole. So set up, avoided the problem that filter tube 121 plugged in the pilot hole completely.

It should be noted that, this spacing arch 123 is located the big one end of filter tube 121 external diameter, can be located filter tube 121 mouth of pipe position, also can be the position that is close to the mouth of pipe, this filter tube 121 only need guarantee its be located the part in the mounting hole can form effectual interference fit with the mounting hole can to when spacing arch 123 is located the position that is close to the mouth of pipe, the part that filter tube 121 is located outside the mounting hole can also make things convenient for the user to snatch in order to take out filter tube 121.

Considering that when the assembly hole is located the bottom of the liquid storage structure 110 and the axis is set to be vertical, the part outside the filter tube 121 is too close to the ground to affect the passing rate of the cleaning robot 100, in some embodiments of the present invention, the limiting protrusion 123 is disposed at the position of the tube opening of the larger outer diameter end of the filter tube 121. With the arrangement, when the cleaning robot 100 travels, the filter pipe 121 can be prevented from touching obstacles on the road surface, so that the cleaning robot 100 can normally walk, and meanwhile, the filter pipe 121 can be prevented from being damaged.

Please refer to fig. 3 and 4, in order to facilitate the user to pull the filtering element 120, in some embodiments of the present invention, the filtering tube 121 is further provided with a hand-pulling portion 124, the hand-pulling portion 124 is fixedly connected to the limiting protrusion 123, and the hand-pulling portion 124 is spaced from the end surface of the assembling hole. So set up, the user can stretch into the finger in the interval between the terminal surface of hand portion 124 and pilot hole, then digs hand portion 124, will filter piece 120 and extract, has made things convenient for the dismantlement of filtering piece 120 greatly.

Considering that the inner diameter of the filtering pipe 120 may cause the cleaning solution to flow too much and waste easily, and the inner diameter of the filtering pipe 120 may cause the user to detach the filtering pipe 120 and then to be difficult to clean the filtering pipe 120 or replace the filter element 122, please refer to fig. 4, in some embodiments of the present invention, an installation funnel 125 is disposed in the filtering pipe 121, the inner diameter of the installation funnel 125 is gradually reduced from a side of the inner diameter adjacent to the water inlet end of the filtering pipe 121 to a side of the inner diameter adjacent to the water outlet end of the filtering pipe 121, and the filter element 122 is installed in the installation funnel 125.

Through above-mentioned scheme, not only can utilize installation funnel 125 to carry out the current-limiting to the cleaning solution, also make things convenient for filter core 122's installation, in addition, the cleaning solution can be through installation funnel 125 mass flow and by filter core 122 filtration, the filter effect is better.

The installation funnel 125 may be disposed in the filter tube 121 in various manners, the installation funnel 125 may be adhered to the inner wall of the filter tube 121, and the installation funnel 125 may be integrally formed with the filter tube 121; preferably, the installation funnel 125 and the filter tube 121 can be detachably clamped, so that the installation funnel 125 can be taken down from the filter tube 121, thereby facilitating the cleaning of the installation funnel 125 and the replacement of the filter element 122.

The above-mentioned filter element 122 is installed in the mode of installation funnel 125 various, and under the condition of the vertical installation of filter tube 121, filter element 122 can place in installation funnel 125, utilizes self gravity to form fixed knot with the holding power of installation funnel 125 inner wall is balanced mutually, so sets up, makes things convenient for filter element 122's assembly.

The filter element 122 may also be adhered to the inner wall of the installation funnel 125, and the installation manner of the filter element 122 to the installation funnel 125 is more structurally stronger than the installation manner directly placed in the installation funnel 125, and is not limited in this respect.

If the inner diameter of the opening of the installation funnel 125 is too large, the filter element 122, such as filter cotton or activated carbon, may be easily washed out of the installation funnel 125, and if the inner diameter of the opening of the installation funnel 125 is too small, the cleaning solution may not be discharged.

To solve the above problem, in some embodiments of the present invention, referring to fig. 4, the end of the installation funnel 125 with a small inner diameter is further provided with a strainer 126. So set up, can prevent that rivers from rushing out installation funnel 125 with filter core 122 to avoid filtering a piece 120 to the ineffective filtration of cleaning solution, also be favorable to the cleaning solution to discharge simultaneously.

In some application scenarios of the cleaning robot 100, the cleaning requirement for the cleaning robot 100 is high, for example, the condition of no impurity and no odor is required, the filtering element 120 not only needs to be able to remove the impurity, but also needs to be able to remove the odor, and at this time, the filtering element 120 needs to be provided with a plurality of filter elements 122 to filter the cleaning solution for many times.

Referring to fig. 4, in some embodiments of the present invention, the filter element 122 includes a filter cotton filter element 122a and an activated carbon filter element 122b, and the filter cotton filter element 122a is installed on the water inlet side of the activated carbon filter element 122 b. So set up, the cleaning solution can carry out first filtration through filter pulp filter core 122a earlier in inflow filter tube 121 to filter the particulate matter in the cleaning solution, carry out the second through active carbon filter core 122b again and filter, arsenic, manganese and organic pollution etc. in the cleaning solution can be adsorbed to active carbon filter core 122b again, and the filter effect is good.

Further, please continue to refer to fig. 4, in some embodiments of the present invention, two installation funnels 125 are disposed in the filter tube 121, the two installation funnels 125 are arranged along the axial line at intervals, the filter tube 121 is installed with the filter cotton filter element 122a in the installation funnel 125 of the water inlet side, the filter tube 121 is installed with the activated carbon filter element 122b in the installation funnel 125 of the water outlet side, so as to set up, the cleaning solution can not only perform the secondary filtration, but also collect the flow for filtration, and the filtering effect is better.

To solve this problem, in some embodiments of the present invention, the filter tube 121 is divided into two detachable sections, and each of the two filter tubes 121 includes a mounting funnel 125 therein. So set up, can dismantle the filter tube 121 segmentation to the filter core 122 is taken out from the end of intaking of filter tube 121 and is changed in each installation funnel 125 conveniently.

In some embodiments of the present invention, the two sections of filtering pipes 121 may be detachably connected by inserting, and the two sections of filtering pipes 121 are fixed by inserting in an interference fit manner; preferably, the two sections of filtering pipes 121 can be connected by threads, and threads are respectively arranged on the inner wall of one section of filtering pipe 121 and the outer wall of the other section of filtering pipe 121 which are in interference fit with the assembly hole, so that the two sections of filtering pipes 121 are connected by threads and are not easy to fall off, and the structural strength is higher.

It should be noted that the number of the installation funnels 125 in the filter pipe 121 is not limited to two, and a certain number of installation funnels 125 and filter elements 122 may be provided according to the filtering requirement; correspondingly, the split of the filter tubes 121 is not limited to two sections, and the filter tubes 121 may be divided according to the number of the installation funnels 125, and each filter tube 121 is provided with one installation funnel 125.

Referring to fig. 4, considering that the filter pipe 121 and the interface are communicated by a pipeline, the filter pipe 121 not only occupies a space, but also has a high cost, in some embodiments of the present invention, the water inlet end of the filter pipe 121 is formed with the socket 127, and the socket 127 is connected to the interface. So set up, cleaning robot 100 structure is also compacter, integrates the degree higher.

Further in some embodiments of the utility model, the diapire in stock solution chamber is located to the interface, filters piece 120 and installs in the below of interface, and the cleaning solution in the stock solution chamber can following current and discharge from filtering piece 120 down, and cooperation cleaning device cleans ground, so sets up, all need not the pipeline intercommunication between stock solution chamber, interface and the filtration piece 120, and the cleaning solution also need not water pump pressurization and discharges, has greatly reduced cleaning machines people 100's cost.

In some embodiments of the present invention, the interface is provided with an electric valve, and the cleaning robot 100 includes a control module, and the electric valve is electrically connected to the control module. So set up, when cleaning machines people 100 stop work, control module can control electric valve and close, when considering to last to mop watering cleaning solution until the mop can't continue to absorb the cleaning solution, can cause the cleaning solution extravagant, and control module also can control electric valve and open and close regularly, avoids excessive cleaning solution to run off.

Further, considering that the increase or decrease of the cleaning liquid in the liquid storage chamber may cause the change of the gravity center of the cleaning robot 100, when the liquid storage tank is located above the cleaning device and the liquid in the liquid storage tank is less, it may easily cause the end of the cleaning device of the cleaning robot 100 where the cleaning device is located to be tilted, thereby causing the cleaning device to work inefficiently,

to solve the above problem, in some embodiments of the present invention, the cleaning robot 100 is provided with a support wheel at the bottom of one end of the cleaning device. So set up, when the liquid in the liquid reserve tank reduces, when cleaning machines people 100 focus removed, the supporting wheel played the effect of support, guaranteed that cleaning device can act on ground all the time.

Considering that cleaning robot 100 can leave water stain on ground in the work the utility model discloses an in some embodiments, cleaning robot 100 still is provided with water absorption device, and this water absorption device is used for blotting the water stain on dry ground, and this water absorption device communicates with the end of intaking of filtering piece 120, and the water storage chamber is provided with the interface of intaking, filters the play water end and the interface intercommunication of intaking of piece 120.

So set up, the water stain that cleaning machines people 100 left can be absorbed by water absorption device to the dust of having avoided water stain adhesion pedestrian sole or wheel tire once more causes the pollution, and pedestrian or vehicle problem of skidding easily when passing by, and can be in order to reuse in filtering the back refluence stock solution chamber by inspiratory sewage, has not only saved the cleaning solution, also need not to set up a sewage case in addition again and is used for storing water absorption device inspiratory sewage.

Further, consider that when the water yield of discharging is great in the unit interval of cleaning robot 100, water pressure is great when filtering piece 120 after the suction device is inhaling, leads to the inspiratory sewage of suction device to flow backward again easily, so the utility model discloses an in some embodiments, filter core 122 in the filter piece 120 with the suction device intercommunication can choose for use the filter screen that filtering quality is lower.

So set up, can filter the large granule in the sewage, improve the filtration efficiency who filters piece 120, avoid sewage palirrhea, and when the filtrating after the first time filtration was discharged in the water storage cavity, still can filter through the second time, do not influence cleaning machines people 100's cleaning performance.

The above is only the preferred embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent structure changes made by the contents of the specification and the drawings or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a cleaning robot, its characterized in that, cleaning robot includes stock solution structure and filtration piece, the stock solution structure be provided with stock solution chamber and with the interface of stock solution chamber intercommunication, filter piece demountable installation in stock solution structure go up and with the interface intercommunication.

2. The cleaning robot of claim 1, wherein the filter element includes a filter tube and a filter cartridge fitted into the filter tube, the filter tube being removably connected to the reservoir structure.

3. The cleaning robot as claimed in claim 2, wherein an assembly hole is formed in an outer wall of the liquid storage structure, and the filter tube extends into the assembly hole and is detachable from the extending direction.

4. A cleaning robot as claimed in claim 3, wherein the fitting hole is opened at a bottom of the liquid storage structure with an axis arranged in a vertical direction.

5. The cleaning robot as claimed in claim 3, wherein the filter tube is tapered, the end of the filter tube having a smaller outer diameter extends into the fitting hole, and the end of the filter tube having a larger outer diameter is interference-fitted with the fitting hole.

6. The cleaning robot of claim 5, wherein a peripheral wall of an end of the filter tube having a large outer diameter is provided with a stopper projection, and the stopper projection abuts against an end face of the fitting hole.

7. The cleaning robot as recited in claim 6, wherein said filter tube further comprises a hand-holding portion, said hand-holding portion is fixedly connected to said limiting protrusion, said hand-holding portion is spaced from said end surface of said fitting hole.

8. The cleaning robot as claimed in claim 2, wherein a mounting funnel is provided in the filter tube, the mounting funnel having an inner diameter gradually decreasing from a side thereof adjacent to the water inlet end of the filter tube to a side thereof adjacent to the water outlet end of the filter tube, the filter cartridge being mounted to the mounting funnel.

9. The cleaning robot as claimed in claim 2, wherein the filter element includes a filter cotton filter element and an activated carbon filter element, and the filter cotton filter element is mounted on a water inlet side of the activated carbon filter element.

10. The cleaning robot as claimed in claim 2, wherein the water inlet end of the filter tube is formed with a socket, and the socket is in socket communication with the interface.