CN212394804U

CN212394804U - Roller and cleaning tool with same

Info

Publication number: CN212394804U
Application number: CN202020149626.XU
Authority: CN
Inventors: 邓常
Original assignee: Dishe Intelligent Technology Wuhan Co Ltd
Current assignee: Wuhan Water Dust Circulation Technology Research Co ltd
Priority date: 2020-01-22
Filing date: 2020-01-22
Publication date: 2021-01-26
Anticipated expiration: 2030-01-22

Abstract

The present disclosure relates to a drum and a cleaning tool having the same. The cylinder, be cylindric, include: a hard rubber shaft for mounting on a cleaning tool; the sponge layer is wrapped and fixed on the circumferential surface of the hard rubber shaft, and the surface of the sponge layer comprises a thread bulge. The cleaning tool comprises a cleaning head, and the roller is arranged on the cleaning head. The spiral bulge on the roller disclosed by the invention has the function of water guiding, so that the extruded water can be smoothly guided into the sewage collecting box, and the phenomenon that the cleaning tool overflows to pollute the ground is avoided; the roller is applied to the cleaning tool, and the cleaning tool applies a 'water-dust circulation' cleaning technology, so that sticky wet garbage which is difficult to clean by the existing cleaning tool can be cleaned and separated from dry garbage.

Description

Roller and cleaning tool with same

Technical Field

The present disclosure relates generally to a cleaning device, and more particularly to a cleaning implement and a roller therefor for cleaning dry, wet and mixed waste, including sticky waste, on flat ground.

Background

Generally, people clean the floor by using tools such as brooms, mops and the like, and the tools mainly depend on manual operation of people to finish cleaning work. With the advancement of technology, the demands on floor cleaning tools are increasing.

The first place is the vacuum cleaner, whose working principle is "air-dust circulation", i.e. relying on electricity for energy supply, by generating negative pressure to suck up the garbage, dust, etc. on the ground. However, due to the limitation of the working principle of the dust collector, the dust collector cannot clean some garbage and dirt which are firmly attached to the ground, and once liquid enters the dust collector, the dust collector is easily damaged. New floor cleaners have now emerged. The new floor cleaner drives a cleaning cylinder (cleaning roller) to wipe the floor through the operation of a motor, and the cleaning cylinder usually adopts a sponge cylinder or scouring pad. Meanwhile, a water supply system and a water tank are also arranged in the floor cleaner to clean the cleaning cylinder, so that the floor is perfectly cleaned. The cleaned sponge cylinder usually has water in the sponge cylinder through the wringing piece, and the water can flow to the ground when the sponge cylinder is squeezed with the ground.

Generally, the cleaning power of floor cleaners is related to the thickness of the sponge cylinder, with thicker sponge cylinders providing greater cleaning power. However, practical operation finds that if the common sponge cylinder is too thick, the water squeezing piece cannot squeeze out sewage in the sponge cylinder, and the inside of the sponge cylinder is polluted. If the water absorption capacity is too thin, the water absorption capacity is insufficient, and the cleaning capability of the water absorption capacity to stains on the bottom surface is insufficient. Thus, it is difficult to determine an appropriate sponge layer thickness.

For this purpose, roller designs with a double sponge layer have also been proposed. The inner layer adopts non-absorbent sponge, and the outer side adopts absorbent sponge. However, the double-layer sponge layer is easy to separate in the using process and has short service life.

In the process of being extruded by the water extruding piece, the extruded water is not easy to control and is easy to overflow the cleaning head.

The statements in this background section merely represent techniques known to the public and are not, of course, representative of the prior art.

SUMMERY OF THE UTILITY MODEL

In view of at least one of the deficiencies of the prior art, the present disclosure provides a drum that facilitates the collection of contaminated water.

A drum, cylindrical in shape, the drum comprising:

a hard rubber shaft for mounting on a cleaning tool;

the sponge layer is wrapped and fixed on the circumferential surface of the hard rubber shaft, and the surface of the sponge layer comprises a thread bulge.

According to one aspect of the present disclosure, the threaded protrusion is a strip extending along one end of the drum to the other end.

According to one aspect of the present disclosure, the threaded protrusions are two in number, have the same pitch, and extend from opposite sides of one end of the drum to the other end of the drum, respectively.

According to one aspect of the disclosure, the two threaded bosses extend from the same generatrix at both ends of the drum towards the middle in opposite helical directions.

According to one aspect of the disclosure, a linear protrusion parallel to the axial direction is arranged in the middle of the roller, and the linear protrusion is connected with the two threaded protrusions.

According to one aspect of the disclosure, the drum has a diameter of 15mm to 700 mm.

According to one aspect of the disclosure, the sponge layer is 3-15mm thick.

According to one aspect of the disclosure, the sponge layer is made of polyvinyl alcohol foam.

According to one aspect of the disclosure, the sponge layer has a density of 0.25 to 0.5g/cm³Water absorption of 0.5-1.5g/cm³Shore hardness A of 40-70, water storage rate of 0.2-1.0g/cm³。

According to an aspect of the present disclosure, one end of the hard rubber shaft includes a connecting shaft, and the other end is in a hollow cylindrical shape.

According to one aspect of the disclosure, a protrusion is provided at one end of the sponge layer.

The disclosure also relates to a cleaning tool comprising a cleaning head comprising a roller according to any of the above embodiments.

According to one aspect of the present disclosure, the cleaning tool further comprises a drive motor comprising a fixed end and a power output end; one end of the hard rubber shaft comprises a connecting shaft, the other end of the hard rubber shaft is provided with a hollow blind hole, and a clamping structure is arranged in the blind hole; the fixed end is fixed on the cleaning head through a rotating shaft, so that the driving motor can rotate around the rotating shaft; the hollow blind hole accommodates the motor; the hard rubber shaft is connected with the power output end through the clamping structure, so that the driving motor can drive the roller to rotate; the other end of the hard rubber shaft is fixed on a pressing telescopic device of the cleaning head.

The scheme of each embodiment of the roller disclosed by the disclosure is applied to a cleaning tool. The cleaning tool applies a 'water-dust circulation' cleaning technology, and can clean sticky wet garbage which is difficult to clean by the existing cleaning tool and separate the sticky wet garbage from dry garbage.

This disclosed cylinder sponge layer is because of the parameter that the material that its adopted has for the individual layer sponge can be with dry rubbish granule parcel, probes into dry dustbin, and deformability, lock water performance are moderate simultaneously, satisfy this type of burnisher's needs, make the clean effect in ground improve by a wide margin.

The spiral protrusion on the roller has the function of water guiding, so that the extruded water can be smoothly guided into the sewage collecting box, and the overflow of cleaning tools and the pollution to the ground are avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure. In the drawings:

FIG. 1 is a schematic perspective view of one embodiment of a cleaning implement of the present disclosure;

FIG. 2 is an exploded view of the cleaning head of FIG. 1;

FIG. 3 is a schematic view of the internal structure of the cleaning head of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the cleaning head of FIG. 1;

FIG. 5 is a bottom view of the cleaning head of FIG. 1;

FIG. 6 is a side schematic view of the cleaning head of FIG. 1;

FIG. 7 is a schematic view of the wringing zone;

FIG. 8 is a schematic view of a drum construction according to one embodiment of the present disclosure;

FIG. 9 is a cross-sectional view of a cleaning tool with the roller described above;

FIG. 10 is a schematic side view of FIG. 9;

FIG. 11 is a perspective schematic view of an embodiment of a roller;

FIG. 12 is a schematic view showing a state where the drum is disassembled;

FIG. 13 is another schematic view of FIG. 12;

fig. 14 is a schematic view of another embodiment of the drum.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art can appreciate, the described embodiments can be modified in various different ways, without departing from the spirit or scope of the present disclosure. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present disclosure, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "straight", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present disclosure. Furthermore, the terms "first", "second" and "first" 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present disclosure, "a plurality" means two or more unless specifically limited otherwise.

Throughout the description of the present disclosure, it is to be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection, either mechanically, electrically, or otherwise in communication with one another; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the disclosure. To simplify the disclosure of the present disclosure, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present disclosure. Moreover, the present disclosure may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The preferred embodiments of the present disclosure will be described below with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely for purposes of illustrating and explaining the present disclosure and are not intended to limit the present disclosure.

The present disclosure relates to a roller and a cleaning tool with the roller, which is used for cleaning floor, especially smooth and flat small-area floor, such as household and kitchen floor. The cleaning implement of the present disclosure is particularly suited for cleaning mixed waste that is mixed with dry waste, wet waste, and stickies such as noodles, porridge, tomato ketchup, and the like.

The dry garbage disclosed by the invention is particularly granular garbage, such as fruit peels, melon seed shells, rice grains, paper sheets and the like.

The wet garbage is liquid garbage, such as water, beverage, etc.

The viscous garbage comprises garbage with certain viscosity such as soup, thick soup, porridge, etc.

Other trash, such as dust, ground markings, etc., are also the cleaning objects of the present disclosure.

FIG. 1 is a schematic perspective view of one embodiment of a cleaning implement of the present disclosure, and FIG. 2 is an exploded view of a cleaning head; FIG. 3 is a schematic view of the internal structure of the cleaning head; fig. 4 is a schematic cross-sectional view, fig. 5 is a schematic bottom view, and fig. 6 is a schematic side view of the cleaning head. As shown in connection with fig. 1-6, the cleaning implement of the present disclosure includes a cleaning head and a handle connected. The handle comprises a cleaning rod 301, an extension rod 302, and the cleaning rod 301 and the extension rod 302 are connected by a connecting structure 304. The cleaning bar 301 is connected to the cleaning head by a hinge arrangement 305. An operator drives the cleaning head to move on the ground surface through the handheld part, and various kinds of garbage scattered on the ground surface are cleaned.

The cleaning head of the cleaning tool of the present disclosure includes a housing 500 having cleaning modules mounted at the bottom of the housing and within the housing that separate debris from the floor and within the housing. The wheels 190 are arranged on the bottom surface of the shell, so that the contact between the non-cleaning module and the ground is reduced, and the dragging is more labor-saving.

The cleaning module includes a wiping unit 110 disposed at the bottom of the housing, a pressing unit 120 disposed in parallel with the wiping unit, a dry garbage collecting unit 150 disposed behind the wiping unit for storing dry garbage, a cleaning unit 130 disposed at an inlet of the dry garbage collecting unit 150, a sewage collecting unit 140, and a clean water supplying unit 160.

The sweeping unit 110 includes a roller 111, a shovel bar 112, a roller driving mechanism 113, and a roller transmission mechanism 114. The roller drive mechanism drives the roller 111 to rotate about its axis counterclockwise in fig. 4 through the roller transmission mechanism. The shovel bar 112 is fixed to the housing 500 and has an arc-shaped working surface forming a gap with a uniform distance from the outer circumference of the drum 111.

The drum 111 includes an inner layer of a hard rubber shaft and a sponge layer wrapped around the hard rubber shaft. The end of the hard rubber shaft may be fixed to the housing 500 by a connector such as a bearing. The roller driving mechanism 113 drives the hard rubber shaft to rotate around the axis thereof through the roller transmission mechanism 114, and drives the sponge layer to rotate, so that the surface of the sponge layer makes circular motion.

When the roller 111 rolls on the ground, the sponge layer is pressed and deformed by the particles of the dry garbage on the ground, and the particles of the dry garbage are wrapped by the sponge layer through deformation, so that the particles of the dry garbage are separated from the ground and rotate together with the roller 111. When turned to the position of the shoveling bars 112, the particles of the dry waste leave the ground, are squeezed by the shoveling bars 112, and continue to rotate with the drum 111. When the shovel bars 112 are rotated to the entrance of the dry garbage collecting unit 150, the sponge layer 111b is deformed due to the loss of the compression of the shovel bars 112, and the dry garbage particles wrapped by the sponge layer are released and are ejected into the dry garbage collecting unit 150.

The axis of the pressing unit 120 is disposed parallel to the drum 111, and may be fixed to the case 500 through both ends, or fixed to the case 500 through a snap structure. The hardness of the pressing unit 120 is much greater than that of the sponge layer 111 b. The distance between the pressing unit 120 and the axis of the drum 111 is smaller than the sum of the radii thereof, and thus the pressing unit 120 presses the surface of the drum after assembly. A squeezing area B is formed at a position where the squeezing unit 120 faces the drum 111.

Fig. 7 is a schematic view of the formation of the wringing zone, and as shown in fig. 7, the pressing unit 120 interferes with the roller 111, and presses the sponge layer 111b of the roller at the interference. In the drawing, the drum 111 rotates clockwise, and a squeezing area B is formed below the squeezing unit 120 in the drawing. The water carried on the drum sponge layer 111b flows out after being squeezed and is collected by the sewage collection unit 140. After the roller passes through wet garbage, the sponge layer carries the wet garbage to continue rotating clockwise. On the cylinder, contain sewage from the sponge layer between ground point M (with the position of ground contact) to the extrusion point N (with the position of extrusion unit 120 contact), through the extrusion of extrusion unit 120, sewage leaves the sponge layer at crowded water district B, be collected by sewage collection unit 140, make the water content on the sponge layer through extrusion point N unsaturated, when rotating M point and ground contact once more, can continue to absorb water, like this, the ponding on absorption ground that burnisher can last, avoid the sponge saturation can not effectively absorb water.

The cleaning tool of the present disclosure further includes a clean water supply unit 160. The purified water supply unit 160 supplies purified water directly or indirectly to the sponge layer 111 b. The purified water enters the interior of the sponge layer, overflows from the sponge layer when being extruded by the extruding unit 120, and peels off the dirt attached to the surface of the sponge layer 111b, thereby cleaning the surface of the roller.

When the roller rolls the viscous waste on the ground, the viscous waste adheres to the surface of the sponge layer 111 b. The clean water supplied from the clean water supply unit 160 washes out the adhesive garbage layer attached to the surface of the sponge layer 111 b.

In order to maintain a relatively dry state of the squeezed sponge layer, the purified water supply unit 160 sets a purified water outlet at the water squeezing zone. Absorb the water purification at crowded water district sponge layer 111b, become the saturated condition, through the extrusion of crowded water unit 120 again, with the sponge layer pin, from the absorbent wet rubbish in ground and the water discharge, the liquid exhaust process takes away the stickness rubbish on sponge layer 111b surface for sponge layer 111b surface keeps clean. Therefore, the present disclosure can achieve the cleaning of the surface of the roller brush 111 without the operator's manual work or interruption of the cleaning work, and the surface of the roller brush contacting the ground is clean during the pushing of the roller.

The present disclosure also includes a cleaning unit 130. The cleaning unit 130 is disposed above the inlet of the dry garbage collection unit 150. After the roller surface rotates over the upper end of the shovel strip to the inlet of the dry garbage collection unit 150, the solid garbage attached to the surface can not be separated from the sponge layer 111b by means of the elasticity and the self weight of the sponge, the cleaning unit 130 scrapes the solid garbage, and the scraped solid garbage falls under the action of the self weight and falls into the dry garbage collection unit 150. The cleaning unit 130 is particularly suitable for small and easily attached garbage, such as paper sheets. The cleaning unit 130 keeps the surface of the sponge layer 111b free of dry garbage.

The cleaning tool of the present disclosure further includes a water circulation module 200, and the water circulation module 200 includes a sewage collection unit 140 and a clean water supply unit 160 connected by a pipe. The sewage is extruded from the drum 111, collected to the sewage collecting unit 140 through the pipeline, purified and then fed to the purified water supply unit 160, recycled again, and sprayed to the water extruding region again to clean the roll brush.

The beneficial effect of this disclosure lies in:

when the mop is used for cleaning the ground, the wet outer layer sponge contacts the ground, so that dust on the ground cannot be raised, the effect of a common mop is achieved, and secondary pollution is prevented;

the outer layer sponge is matched with the shovel strip, so that solid garbage can be completely collected;

the cleaning unit separates and collects the solid garbage attached to the outer layer sponge and keeps the surface of the outer layer sponge free of the solid garbage;

the roller absorbs wet ground garbage, when water in the roller is squeezed out, sticky garbage attached to the surface of the roller is peeled and diluted, the part dissolved in the water is brought into the sewage tank, the part not dissolved in the water is peeled from the roller and enters the solid garbage tank, so that the sticky garbage can be treated, and the dry garbage and the wet garbage are separated;

the squeezing unit squeezes out the liquid locked in the outer layer sponge to keep the unsaturated state of the outer layer sponge, so that the cleaning tool can continuously clean the liquid garbage;

the purified water supply unit and the extrusion unit work together to keep the roller contacting the ground in a clean state all the time. Therefore, the present disclosure cleans sticky trash, especially a mixture of various trash, and is capable of separating dry and wet trash, keeping the outer sponge surface of the drum clean continuously.

The components and the combination relationship of the components in the present disclosure are not exclusive, and the following description will be made one by one.

Embodiments of the Drum

Fig. 8 is a schematic view of a drum structure according to an embodiment of the present disclosure. As shown in fig. 8, the roller includes a hard rubber shaft 111c at a shaft center and a sponge layer 111b wrapped around and fixed to a circumferential surface of the hard rubber shaft.

The density and hardness of the sponge have a direct influence on the water absorption performance and water storage rate (also called water locking). When the density of the sponge is improved to a certain extent, the water absorption performance is reduced, the hardness is improved, and the water storage rate is improved; on the contrary, the sponge density is reduced, the water absorption is improved, the hardness is reduced, and the water storage rate is reduced.

The roller of this embodiment has only one sponge layer, and the sponge layer 111b is made of polyvinyl alcohol (PVA) foam. The density of the PVA sponge is 0.25-0.5g/cm³Water absorption of 0.5-1.5g/cm³. The Shore A hardness of the PVA sponge is 40-70. The water storage rate of the PVA sponge is 0.2-1.0g/cm³. This disclosed sponge layer because it possesses above-mentioned characteristic, consequently with the ordinary sponge cylinder contrast of current individual layer, has more excellent effect:

the sponge layer has proper water absorption performance and water storage rate and also has proper density and hardness, so that the sponge can deform properly to wrap garbage particles in the mopping process, and most garbage particles can be ejected out by utilizing the elasticity of the sponge layer to be separated from the sponge layer and fall into the dry garbage collection unit without omission when the sponge layer is rotated to be limited by the shovel strips; moreover, when the accumulated water on the ground is treated, the sponge can absorb more water, and less water is remained on the dragged bottom surface.

According to the sponge layer, the defect that the service life of the roller is influenced due to the fact that the double layers of sponge are extruded to separate from each other can be avoided.

The sponge layer of the present disclosure is generally 3-15mm thick and is deformed enough to wrap up common particulate waste. The household cleaning tool is provided with a sponge layer with the thickness of 5-10mm, and common dry garbage on the household floor can be treated.

The diameter of the roller of the present disclosure can be as small as 15mm at the minimum, and can be as large as 700mm at the maximum.

For example, a sponge layer with the thickness of 3mm is attached to the outside of a solid hard rubber shaft rod with the diameter of 9mm, and the solid hard rubber shaft rod is assembled in the cleaning tool, so that dry garbage with small particle size can be treated, and the solid hard rubber shaft rod is applied to relatively clean places such as convention centers, museums and the like.

The roller with the diameter of 700mm is generally applied outdoors or places with larger dry garbage particles.

On the surface of the drum, there may be further provided a spiral protrusion, which may be referred to as a first spiral protrusion 111f, as shown in fig. 8, and the spiral protrusion is one and extends along one end of the drum to the other end, and in other embodiments, there may be provided two spiral protrusions, which have the same pitch and extend from opposite sides of one end of the drum to the other end of the drum. I.e. the starting ends of the two spiral protrusions are located on the same generatrix of the drum. In other embodiments, the arrangement of the two spiral protrusions may also be different, and as shown in fig. 14, two first spiral protrusions 111f extend from the same generatrix at both ends of the drum toward the middle in opposite spiral directions. A linear protrusion 111h parallel to the axial direction is provided at a position close to the two spiral protrusions, that is, at the middle portion of the drum 111, and the linear protrusion 111h is connected to the two first spiral protrusions 111 f.

FIG. 9 is a cross-sectional view of a cleaning implement with the roller described above, and FIG. 10 is a side elevational view of FIG. 9; FIG. 11 is a perspective schematic view of an embodiment of a roller; FIG. 12 is a schematic view showing a state where the drum is disassembled; fig. 13 is another view angle diagram of fig. 12. As shown in fig. 8 to 12, one end of the hard rubber shaft includes a connecting shaft, and the other end is hollow cylindrical.

One end of the driving motor 113a is fixed to the cleaning head through a fixing base 113e and a rotation shaft 113c, and the other end thereof is rotatable around the rotation shaft at a certain angle. The hollow end of the ebonite axle 111c is sleeved on the motor, the end is propped against the driving motor 113a, and the other end of the ebonite axle is fixed on the pressing telescopic device on the cleaning head. The push-type telescopic device 113f comprises a button, a spring, a stop block and other parts, the button is stressed, the compression spring drives the stop block to move away from the position resisting the ebonite shaft, the end of the ebonite shaft 111c can be moved out of the roller mounting groove on the cleaning head shell, the other end drives the driving motor 113a in the ebonite shaft to rotate around the rotating shaft 113c, the shapes of figures 12 and 13 are formed, and the roller 111 can be taken down by drawing out the roller from the motor. When a button of the telescopic device is pressed, the stop block is retracted, and when the button is released, the stop block is reset. The reverse operation is achieved and the cylinder can be mounted on the cleaning head. Or, press the telescoping device and set up on the cylinder, press the button, the spring drives the dog shrink, pushes out from the sunken department on the dog cleaning head casing for the cylinder breaks away from the constraint of cleaning head, can take out the cylinder easily at this moment.

When the roller and the extrusion unit are provided with the secondary water tank for receiving sewage overflow, in order to prevent the sewage inlet of the secondary water tank from being blocked, a protrusion 111y (as shown in fig. 14) can be arranged at the position, corresponding to the sewage inlet, of the sponge layer at one end of the roller, the roller rotates, and the protrusion 111y sweeps the sewage inlet.

The roller of the present disclosure can also be made into a structure with two ends being blocked, and the driving motor is connected with the roller through the connecting piece to drive the roller to rotate. The cleaning tool with the roller driving motor can reduce the thrust of an operator to the cleaning tool, and is suitable for the operator with insufficient strength.

The spiral protrusion on the roller can guide the sewage extruded by the extrusion unit to a designated position, such as a sewage pipe suction nozzle, along the trend of the threads, so that the sewage can be prevented from overflowing to cause secondary pollution to the bottom surface.

In this disclosure, solid waste is swept into the rubbish box through the cylinder, and liquid waste is adsorbed by the cylinder, then is extruded out and gets into the water tank and handle. In the whole process, water can be circulated for multiple times, and garbage (dust) is cleaned smoothly, so that the technology is called as 'water-dust circulation' cleaning technology in the disclosure.

The self-cleaning of the roller can be realized by utilizing the 'water-dust circulation' cleaning technology, and the sweeping, the dragging, the washing and the twisting are combined together, so that the roller is greatly convenient for users, and can realize a very good cleaning effect.

The above description is only exemplary of the present disclosure and should not be taken as limiting the disclosure, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of protection of the present disclosure.

Finally, it should be noted that: although the present disclosure has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the disclosure. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A drum, cylindrical, comprising:

a hard rubber shaft for mounting on a cleaning tool;

2. The drum as claimed in claim 1, wherein the screw boss is a strip extending along one end of the drum to the other end.

3. The drum as claimed in claim 1, wherein the screw bosses are two in number, have the same pitch, and extend from opposite sides of one end of the drum to the other end of the drum, respectively.

4. The drum as claimed in claim 1, wherein the screw-thread protrusions are two in number, starting from the same generatrix at both ends of the drum, extending in opposite helical directions toward the middle of the drum.

5. The drum as claimed in claim 4, wherein a linear protrusion parallel to the axial direction is provided at a middle position of the drum, and the linear protrusion is coupled to both of the screw protrusions.

6. The cylinder as claimed in claim 1, wherein the cylinder has a diameter of 15mm to 700 mm.

7. The cylinder as claimed in claim 1, characterized in that the sponge layer has a thickness of 3 to 15 mm.

8. The cylinder as recited in claim 1 wherein the sponge layer is foamed with polyvinyl alcohol.

9. The cylinder as recited in claim 8 wherein the sponge layer has a density of 0.25 to 0.5g/cm³Water absorption of 0.5-1.5g/cm³Shore hardness A of 40-70, water storage rate of 0.2-1.0g/cm³。

10. The drum as claimed in claim 1, wherein one end of the hard rubber shaft includes a connection shaft and the other end is hollow cylindrical.

11. The drum as claimed in claim 1, wherein a protrusion is provided at one end of the sponge layer.

12. A cleaning implement comprising a cleaning head including a roller as claimed in any one of claims 1 to 11 thereon.

13. The cleaning implement of claim 12, further comprising a drive motor, the drive motor including a fixed end and a power output end; one end of the hard rubber shaft comprises a connecting shaft, the other end of the hard rubber shaft is provided with a hollow blind hole, and a clamping structure is arranged in the blind hole; wherein,

the fixed end is fixed on the cleaning head through a rotating shaft, so that the driving motor can rotate around the rotating shaft; the hollow blind hole accommodates the motor; the hard rubber shaft is connected with the power output end through the clamping structure, so that the driving motor can drive the roller to rotate; the other end of the hard rubber shaft is fixed on a pressing telescopic device of the cleaning head.