CN107320039B - Cleaning machine - Google Patents

Abstract

The invention discloses a cleaning machine, which comprises a cleaning tank body, a filter screen and a driving device, wherein the cleaning tank body is provided with a cleaning chamber, the filter screen is positioned in the cleaning chamber, the filter screen comprises a water inlet and a plurality of water outlets which are arranged at intervals, the water inlet is separated from the plurality of water outlets, the plurality of water outlets surround the water inlet, the water inlet is positioned above the plurality of water outlets, a containing cavity is formed in the filter screen, the water inlet is communicated with the cleaning chamber and the containing cavity, the plurality of water outlets are communicated with the cleaning chamber and the containing cavity, the driving device comprises an impeller which is arranged in the containing cavity, the water inlet is opposite to the upper end of the impeller, the plurality of water outlets surround the side surface of the impeller, the impeller is separated from the filter screen, and the driving device is used for driving the impeller to rotate so that water circularly flows in the cleaning chamber.

Description

Cleaning machine

Technical Field

The invention relates to the field of household appliances, in particular to a cleaning machine.

Background

At present, most people clean fruits and vegetables manually, so that the cleaning machine is time-consuming and labor-consuming, has poor cleaning effect and has the problem of water waste.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention needs to provide a cleaning machine.

The cleaning machine comprises a cleaning tank body, a filter screen and a driving device, wherein the cleaning tank body is provided with a cleaning chamber, the filter screen is positioned in the cleaning chamber and comprises a water inlet and a plurality of water outlets which are arranged at intervals, the water inlet is separated from the water outlets, the water outlets surround the water inlet, the water inlet is positioned above the water outlets, a containing cavity is formed in the filter screen, the water inlet is communicated with the cleaning chamber and the containing cavity, the water outlets are communicated with the cleaning chamber and the containing cavity, the driving device comprises an impeller arranged in the containing cavity, the water inlet is opposite to the upper end of the impeller, the water outlets surround the side face of the impeller, the impeller is separated from the filter screen, and the driving device is used for driving the impeller to rotate so as to enable water to circularly flow in the cleaning chamber.

In the cleaning machine of the embodiment of the invention, when the impeller rotates, water in the cleaning chamber can enter the accommodating cavity from the water inlet, and water thrown out by the rotating impeller can enter the cleaning chamber again from the plurality of water outlets, so that the water in the cleaning chamber forms circulating flow, and the circulating flow water can automatically clean objects (such as fruits or vegetables) to be cleaned in the cleaning chamber back and forth, thereby effectively cleaning the objects to be cleaned through a small amount of water, improving the cleaning effect of the objects to be cleaned, and saving water resources.

In some embodiments, the filter screen comprises a screen body in the shape of a cover, the screen body comprises a top wall positioned in the cleaning chamber and a side wall connected with the top wall, the top wall is provided with the water inlet, and the side wall is provided with the plurality of water outlets.

In some embodiments, the filter screen comprises a mesh structure arranged on the water inlet, the mesh structure covers the water inlet, the mesh structure comprises a plurality of first through holes arranged at intervals, and the first through holes are communicated with the cleaning chamber and the water inlet.

In some embodiments, the cleaning machine comprises a housing, the filter screen is disposed on the housing, the mesh body covers the housing, the impeller is disposed between the housing and the mesh body, the impeller is disposed above the housing, an upward protruding round table is formed at the bottom of the cleaning tank body, the housing is covered on the round table, the driving device comprises a motor and a rotating shaft, the motor is mounted at the bottom of the round table, the motor is disposed outside the bottom of the cleaning tank body, the motor is disposed outside the cleaning chamber, one end of the rotating shaft is connected with the motor, the other end of the rotating shaft sequentially penetrates through the round table and the housing to be connected with the impeller, and the motor is used for driving the rotating shaft to rotate so as to drive the impeller to rotate.

In some embodiments, the cleaning machine comprises an annular motor mounting seat, the motor is mounted on the circular table through the motor mounting seat, the motor mounting seat is positioned outside the bottom of the circular table, the circular table is positioned between the shell and the motor mounting seat, and the other end of the rotating shaft sequentially penetrates through the motor mounting seat, the circular table and the shell to be connected with the impeller.

In some embodiments, the motor mounting seat is provided with a first shaft hole, the cleaning machine comprises a first annular sealing element, the other end of the rotating shaft sequentially penetrates through the first shaft hole and the first sealing element, and the first sealing element is arranged between the motor mounting seat and the round table in a compressed mode to seal a gap between the rotating shaft and the first shaft hole.

In some embodiments, the motor mount is provided with a recess, the first shaft hole is provided on a bottom surface of the recess, and the first sealing member is compressed and arranged in the recess to seal a gap between the rotating shaft and the first shaft hole.

In some embodiments, the top surface of the round table is provided with four-lobe holes, the top surface of the motor mounting seat is provided with an outer boss matched with the four-lobe holes in shape, the position of the outer boss corresponds to the position of the four-lobe holes, the first shaft hole penetrates through the outer boss, and the other end of the rotating shaft penetrates through the first shaft hole, the four-lobe holes and the shell to be connected with the impeller.

In some embodiments, the motor mount is provided with an annular seal groove, the seal groove is spaced from the outer boss, the seal groove surrounds the outer boss, the cleaning machine includes an annular second seal member, and the second seal member is compressed and disposed in the seal groove to seal a gap between the motor mount and the boss.

In some embodiments, the bottom surface of the cleaning tank body is provided with a groove surrounding the round table, the bottom of the groove is provided with a water outlet, the water outlet is communicated with the cleaning chamber, the filter screen comprises a cornice extending outwards from the side part of the net body, the cornice surrounds the net body, the cornice is provided with a plurality of second through holes arranged at intervals, the second through holes are communicated with the water outlet and the cleaning chamber, and the cornice cover is provided with the groove.

In certain embodiments, the housing is formed with a first circular boss and a second boss in the shape of four lobes, the first boss is spaced apart from the second boss, the second boss surrounds the first boss, the top surface of the motor mount is formed with a circular inner boss, the inner boss is spaced apart from the outer boss, the outer boss surrounds the inner boss, the first shaft hole penetrates the inner boss, the outer boss surrounds the second boss, and the first boss surrounds the inner boss.

In some embodiments, a plurality of hooks are formed at the lower part of the net body, a plurality of positioning bosses are formed at the outer side surface of the shell at intervals, the number of the hooks is the same as that of the positioning bosses, and each hook is clamped into the bottom of the corresponding positioning boss to fix the filter screen.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic perspective view of a cleaning machine according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of a washer according to an embodiment of the present invention.

FIG. 3 is an enlarged schematic view of the portion of the washer I of FIG. 2.

Fig. 4 is a partially exploded schematic view of a cleaning machine according to an embodiment of the present invention.

Fig. 5 is a schematic view showing a structure of a casing and a filter screen of the cleaning machine according to the embodiment of the present invention in an assembled state.

Fig. 6 is a schematic view showing a structure of a case and a screen of a washing machine according to an embodiment of the present invention in a separated state.

Fig. 7 is a schematic view of the structure of a cleaning tank of the cleaning machine according to the embodiment of the present invention.

Fig. 8 is a schematic view showing a structure of a screen of a cleaning machine according to an embodiment of the present invention.

Fig. 9 is another schematic view of the structure of the filter screen of the cleaning machine according to the embodiment of the present invention.

Fig. 10 is a schematic view of the structure of a casing of the washing machine according to the embodiment of the present invention.

Fig. 11 is a schematic view of a motor mount of a cleaning machine according to an embodiment of the present invention.

Description of main reference numerals:

a cleaning machine 100;

the washing tank 10, the washing chamber 11, the round table 12, the second fixing hole 120, the four-lobe hole 121, the groove 13, the water outlet 131, the filter screen 20, the accommodating chamber 201, the water inlet 21, the water outlet 22, the net body 23, the lower part 230, the top wall 231, the side wall 232, the hook 233, the net structure 24, the first through hole 241, the cornice 25, the second through hole 251, the driving device 30, the impeller 31, the hub 311, the vane 312, the spindle hole 313, the motor 32, the spindle 33, the housing 40, the first fixing hole 401, the second spindle hole 41, the first boss 42, the second boss 43, the positioning boss 44, the motor mount 50, the third fixing hole 501, the first shaft hole 51, the recess 52, the outer boss 53, the seal groove 54, the inner boss 55, the first seal 60, and the second seal 61.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. Either mechanically or electrically. Can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 to 11, a cleaning machine 100 according to an embodiment of the present invention includes a cleaning tank 10, a filter 20, and a driving device 30.

The cleaning tank body 10 is formed with a cleaning chamber 11. A screen 20 is located within the washing chamber 11. The filter screen 20 comprises a water inlet 21 and a plurality of water outlets 22 which are arranged at intervals. The water inlet 21 is spaced apart from the plurality of water outlets 22. A plurality of water outlets 22 surrounds the water inlet 21. The water inlet 21 is located above the plurality of water outlets 22. The filter screen 20 has a receiving chamber 201 formed therein. The water inlet 21 communicates with the cleaning chamber 11 and the accommodation chamber 201. The plurality of water outlets 22 are communicated with the cleaning chamber 11 and the accommodating cavity 201. The drive means 30 comprise an impeller 31 arranged in the housing cavity 201. The water inlet 21 is opposite to the upper end of the impeller 31. A plurality of water outlets 22 surrounds the sides of the impeller 31. Impeller 31 is spaced from screen 20. The driving means 30 serves to drive the impeller 31 to rotate so that water circulates in the washing chamber 11.

In the cleaning machine 100 according to the embodiment of the present invention, when the impeller 31 rotates, water in the cleaning chamber 11 can enter the accommodating cavity 201 through the water inlet 21, and water thrown out by the rotating impeller 31 can enter the cleaning chamber 11 again through the plurality of water outlets 22, so that the water in the cleaning chamber 11 forms a circulating flow, and thus the circulating flow water can automatically clean objects (such as fruits or vegetables) to be cleaned placed in the cleaning chamber 11 back and forth, thereby effectively cleaning the objects to be cleaned through a small amount of water, and not only improving the cleaning effect of the objects to be cleaned, but also saving water resources.

The cleaning machine 100 may be used for cleaning and immersing various foods such as seafood, eggs, dried goods and frozen goods, and may also be used for cleaning tableware (e.g., bowls and chopsticks, etc.). The water circulating in the cleaning chamber 11 can form a larger acting force for flushing dirt on the object to be cleaned back and forth, so that the object to be cleaned can be cleaned more thoroughly. Of course, other flowing cleaning liquid (such as vegetable and fruit cleaning agent or detergent) or powdery cleaning object which can be dissolved in water can be added into the water, so that the cleaning effect on the articles (such as fruits or vegetables) in the cleaning chamber 11 can be improved.

In addition, the shape of the water inlet 21 may be set according to circumstances. The shape and number of the water outlets 22 may be set according to circumstances. It will be appreciated that a mesh may be provided at the water outlet 22 in order to prevent impurities (e.g. fruit and vegetable residues) in the washing chamber 11 from entering the receiving chamber 201.

It will be appreciated that, in order to enable a smoother circulation of water between the washing chamber 11 and the receiving chamber 201 and to prevent impurities (e.g., fruit and vegetable residues) in the washing chamber 11 from entering the receiving chamber 201, the filter screen 20 may further comprise a plurality of mesh openings (not shown) spaced apart from the water inlet 21 and the water outlet 22.

In some embodiments, the cleaning tank 10 is in a polyhedral configuration.

Thus, the overall shape of the cleaning tank 10 is more regular, thereby improving the convenience of the cleaning machine 100 and the stability of the cleaning machine 100.

It will be appreciated that the sink 10 may take the form of a metal sink in a conventional kitchen, may be made in the form of a drawer, or may be a separate box.

In the present embodiment, the cleaning tank 10 has a five-sided housing structure.

In some embodiments, filter screen 20 includes a mesh body 23 in the shape of a hood. The mesh body 23 includes a top wall 231 located in the washing chamber 11 and a side wall 232 connected to the top wall 231. The top wall 231 is provided with a water inlet 21. The side wall 232 defines a plurality of water outlets 22.

In this way, the washing chamber 11 is formed in a relatively simple manner, and the water thrown out by the impeller 31 in the accommodating chamber 201 is distributed more uniformly in the washing chamber 11, so that the water in the washing chamber 11 can be sufficiently pushed to circulate.

It will be appreciated that in order to provide a more efficient circulation of the water in the washing chamber 11 for improved washing, the water inlet 21 may be located at a central position of the top wall 231 and the plurality of water outlets 22 may be evenly spaced along the circumference of the side wall 232.

In certain embodiments, the screen 20 includes a mesh structure 24 disposed over the water inlet 21. The net structure 24 covers the water inlet 21. The mesh structure 24 includes a plurality of first through holes 241 disposed at intervals. The plurality of first through holes 241 communicate with the washing chamber 11 and the water inlet 21.

In this way, the mesh structure 24 can sufficiently filter the water entering the accommodating cavity 201 from the water inlet 21, so that impurities (such as fruit and vegetable residues) in the cleaning chamber 11 can be effectively prevented from entering the accommodating cavity 201 to influence the rotation of the impeller 31.

The size of the first through hole 241 of the mesh structure 24 may be set according to circumstances, in order to sufficiently filter impurities (e.g., fruit and vegetable residues) in the washing chamber 11.

In certain embodiments, the washer 100 includes a housing 40. The screen 20 is disposed on the housing 40. The net 23 houses a housing 40. Impeller 31 is located between housing 40 and mesh 23. The impeller 31 is disposed above the housing 40. The bottom of the washing tub 10 is formed with a circular truncated cone 12 protruding upward. The housing 40 is covered on the circular table 12. The driving device 30 includes a motor 32 and a rotating shaft 33. A motor 32 is mounted to the bottom of the table 12. The motor 32 is located outside the bottom of the cleaning tank body 10. The motor 32 is located outside the washing chamber 11. One end of the rotating shaft 33 is connected to the motor 32. The other end of the rotating shaft 33 is connected to the impeller 31 by passing through the round table 12 and the housing 40 in order. The motor 32 is used for driving the rotating shaft 33 to rotate so as to drive the impeller 31 to rotate.

In this way, the driving impeller 31 is simply arranged to rotate, and the impeller 31 can be driven by the motor 32 with smaller power. In addition, since the motor 32 is located outside the bottom of the washing tub 10, it is possible to prevent water in the washing chamber 11 from affecting the motor 32.

It is understood that impeller 31 may include a hub 311 and a plurality of blades 312 coupled to hub 311. The hub 311 is provided with a rotation shaft hole 313. The plurality of blades 312 are uniformly spaced apart along the circumference of the hub 311. The other end of the rotation shaft 33 penetrates the rotation shaft hole 313 and is fixed in the rotation shaft hole 313 to drive the plurality of blades 312 to rotate.

In the present embodiment, the circular truncated cone 12 is formed at a central position of the bottom of the cleaning tank body 10.

In certain embodiments, the washer 100 includes an annular motor mount 50. The motor 32 is mounted to the table 12 by a motor mount 50. The motor mount 50 is located outside the bottom of the circular table 12. The circular table 12 is positioned between the housing 40 and the motor mount 50. The other end of the rotating shaft 33 is connected to the impeller 31 by passing through the motor mount 50, the round table 12, and the housing 40 in this order.

In this way, the housing 40 and the motor mount 50 can vertically clamp the round table 12, so that the stability of mounting the motor 32 and the rotating shaft 33 can be improved, and the motor 32 can be further separated from the washing chamber 11.

In some embodiments, the motor mount 50 is provided with a first shaft hole 51. The washer 100 includes an annular first seal 60. The other end of the rotating shaft 33 sequentially passes through the first shaft hole 51 and the first sealing member 60. The first seal 60 is compressively disposed between the motor mount 50 and the circular table 12 to seal the gap between the rotation shaft 33 and the first shaft hole 51.

Thus, the first sealing member 60 can effectively seal the gap between the rotating shaft 33 and the first shaft hole 51, thereby improving the sealing effect on the rotating shaft 33 and preventing water leakage at the bottom of the cleaning tank 10.

It will be appreciated that, to facilitate installation of the shaft 33 and the motor mount 50, the first shaft hole 51 may be provided at an intermediate position of the motor mount 50.

It will be appreciated that the first seal 60 may be resilient and may be constructed of a plastic material or a silicone material.

In some embodiments, the motor mount 50 is recessed 52. The first shaft hole 51 is opened on the bottom surface of the cavity 52. The first seal 60 is compressively disposed in the recess 52 to seal the gap between the rotation shaft 33 and the first shaft hole 51.

Thus, the provision of the recess 52 facilitates the installation of the first seal 60 and can enhance the sealing effect of the first seal 60.

It will be appreciated that to facilitate installation of the shaft 33 and motor mount 50, the recess 52 may be formed in a central location of the motor mount 50.

In some embodiments, the top surface of the boss 12 is provided with four-lobe holes 121. The top surface of the motor mount 50 is formed with an outer boss 53 that matches the shape of the four-lobe hole 121. The position of the outer boss 53 corresponds to the position of the four-lobe hole 121. . The first shaft hole 51 penetrates the outer boss 53. The other end of the rotation shaft 33 is connected to the impeller 31 by penetrating the first shaft hole 51, the four-lobe hole 121, and the casing 40.

Thus, the motor mount 50 can be more conveniently mounted, and the accuracy of mounting the motor mount 50 can be improved.

It will be appreciated that in order to facilitate the installation of the spindle 33 and motor mount 50, the four-lobe aperture 121 may be formed in a central location of the boss 12.

Referring to fig. 2 and 4 again, in the present embodiment, the housing 40 is provided with a second shaft hole 41. The motor 32 is mounted on a motor mount 50. The housing 40 and motor mount 50 clamp the table 12 up and down. The rotation shaft 33 is vertically oriented. The protruding portion of the rotation shaft 33 is fixedly connected to the impeller 31 through the first shaft hole 51, the first seal 60, the four-lobe hole 121, and the second shaft hole 41 in this order from bottom to top. In this way, the motor 32 can rapidly drive the impeller 31 to rotate.

In some embodiments, motor mount 50 is provided with an annular seal groove 54. The seal groove 54 is provided at a distance from the outer boss 53. Seal groove 54 surrounds outer boss 53. The washer 100 includes an annular second seal 61. A second seal 61 is compressively disposed within seal groove 54 to seal the gap between motor mount 50 and boss 12.

Thus, the second sealing member 61 can effectively seal the gap between the motor mounting seat 50 and the circular table 12, so that the sealing effect of the motor mounting seat 50 and the circular table 12 can be improved, and water leakage at the bottom of the cleaning tank 10 can be prevented.

It will be appreciated that the second seal 61 may be resilient and may be constructed of a plastics material or a silicone material.

In some embodiments, the housing 40 is provided with a first fixing hole 401, the round table 12 is provided with a second fixing hole 120, and the motor mount 50 is provided with a third fixing hole 501. The first fixing hole 401 is opposite to the second fixing hole 120, and the second fixing hole 120 is opposite to the third fixing hole 501. The washer 100 includes fasteners (not shown). The fastening members can pass through the first fixing hole 401, the second fixing hole 120 and the third fixing hole 501 to fix the housing 40 and the motor mount 50 on the upper and lower sides of the circular table 12 respectively.

Thus, the housing 40 and the motor mount 50 can stably clamp the round table 12 up and down.

It should be noted that, the fastening members may sequentially pass through the first fixing hole 401, the second fixing hole 120, and the third fixing hole 501 to fix the housing 40 and the motor mount 50 on the upper and lower sides of the circular table 12, respectively, or sequentially pass through the third fixing hole 501, the second fixing hole 120, and the first fixing hole 401 to fix the housing 40 and the motor mount 50 on the upper and lower sides of the circular table 12, respectively. In addition, the housing 40 and the motor mount 50 may be connected to the upper and lower sides of the circular table 12 by means of a snap fit or welding.

In some embodiments, the number of the first fixing holes 401 is plural, and the plural first fixing holes 401 are spaced apart. The number of the second fixing holes 120 is plural, and the plural second fixing holes 120 are disposed at intervals. The number of the third fixing holes 501 is plural, and the plural third fixing holes 501 are arranged at intervals. The number of the first fixing holes 401 is the same as the number of the second fixing holes 120 and the number of the third fixing holes 501. The number of fasteners is plural. The number of fasteners is the same as the number of first fixing holes 401.

In this way, the stability of the housing 40 and the motor mount 50 mounted on the upper and lower sides of the circular table 12 can be further improved.

In the example shown in fig. 4, the number of the first fixing holes 401 is 4, and 4 first fixing holes 401 are arranged at intervals. 4 first fixing holes 401 surround the second shaft hole 41. The number of the second fixing holes 120 is 4, and the 4 second fixing holes 120 are spaced apart. The 4 second fixing holes 120 surround the four flap holes 121. The number of the third fixing holes 501 is 4, and the 4 third fixing holes 501 are arranged at intervals. The 4 third fixing holes 501 surround the first shaft hole 51. The number of fasteners was 4. The first fixing hole 401 is a screw hole, the second fixing hole 120 is a screw hole, and the third fixing hole 501 is a screw hole. The fastener is a stainless steel screw.

At the time of installation, after the positions between the 4 first fixing holes 401, the 4 second fixing holes 120 and the 4 third fixing holes 501 correspond, 4 fasteners may be respectively twisted into the above holes, so that the housing 40, the circular table 12 and the motor mount 50 can be mutually pressed into one body, so that the housing 40 and the motor mount 50 can be stably fixed on the upper and lower sides of the circular table 12, and the bottom surfaces of the motor mount 50 and the circular table 12 can be pressed against the sealing groove 54 so that the sealing groove 54 seals the gap between the motor mount 50 and the circular table 12.

In some embodiments, the bottom surface of the cleaning tank 10 is provided with a groove 13 surrounding the circular table 12. The bottom of the groove 13 is provided with a drain 131. The drain port 131 communicates with the washing chamber 11. The screen 20 includes a cornice 25 extending outwardly from the sides of the screen body 23. The cornice 25 surrounds the mesh body 23. The cornice 25 is provided with a plurality of second through holes 251 arranged at intervals. The plurality of second through holes 251 communicate with the drain port 131 and the washing chamber 11. The cornice 25 covers the groove 13.

Thus, the cornice 25 covers the groove 13 and can form a circle of filter screen structure with the filtering function. When the washer 100 is draining, the water will first pass through the cornice 25 of the filter screen 20, filtering out the larger size contaminants, then the water will flow into the recess 13, and finally drain out the drain 131, at which time the smaller size contaminants will drain along with the drain. Thus, the use of the screen 20 prevents large-sized contaminants from entering the drain line, avoiding clogging.

In the present embodiment, the plurality of second through holes 251 are distributed along the circumferential direction of the cornice 25. Thus, the filter structures formed by the plurality of second through holes 251 are uniformly distributed.

In some embodiments, the housing 40 is formed with a circular first boss 42 and a four-lobed second boss 43. The first boss 42 is spaced apart from the second boss 43. The second boss 43 surrounds the first boss 42. The top surface of the motor mount 50 is formed with a circular inner boss 55. The inner boss 55 is spaced from the outer boss 53. The outer boss 53 surrounds the inner boss 55. The first shaft hole 51 penetrates the inner boss 55. The outer boss 53 surrounds the second boss 43. The first boss 42 surrounds the inner boss 55.

In this way, the outer boss 53 is disposed further toward the outside than the second boss 43, and the inner boss 55 is disposed further toward the inside than the first boss 42, so that a labyrinth seal structure is formed, and the sealing effect of the bottom of the cleaning tank 10 can be improved. In addition, the outer boss 53 and the inner boss 55 can also be installed and positioned in a staggered manner with respect to the first boss 42 and the second boss 43.

In some embodiments, the lower portion 230 of the mesh body 23 is formed with a plurality of hooks 233 disposed at intervals. The outer side of the housing 40 is formed with a plurality of positioning bosses 44 disposed at intervals. The number of hooks 233 is the same as the number of positioning bosses 44. Each hook 233 is snapped into the bottom of the corresponding positioning boss 44 to secure the filter 20.

Thus, the hook 233 engages the positioning boss 44, so that the filter 20 is stably fixed on the housing 40.

Specifically, referring to fig. 9 and 10, the number of hooks 233 is 5, and 5 hooks 233 are formed inside the lower portion 230 of the net body 23. The 5 hooks 233 are uniformly spaced apart along the circumferential direction of the net body 23. The number of positioning bosses 44 is 5. The 5 positioning bosses 44 are uniformly spaced along the circumference of the housing 40

During installation, the filter screen 20 is rotated, so that the 5 hooks 233 slide into the bottoms of the 5 positioning bosses 44 respectively to clamp the 5 positioning bosses 44 respectively, thereby fixing the filter screen 20, as shown in fig. 5. During disassembly, the filter screen 20 is reversely rotated, so that the 5 hooks 233 slide out of the 5 positioning bosses 44 respectively, and the filter screen 20 can be lifted and taken out, as shown in fig. 6.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A cleaning machine, comprising:

a cleaning tank body formed with a cleaning chamber;

the filter screen is positioned in the cleaning chamber and comprises a water inlet and a plurality of water outlets which are arranged at intervals, the water inlet is separated from the water outlets, the water outlets surround the water inlet, the water inlet is positioned above the water outlets, a containing cavity is formed in the filter screen, the water inlet is communicated with the cleaning chamber and the containing cavity, and the water outlets are communicated with the cleaning chamber and the containing cavity;

the driving device comprises an impeller arranged in the accommodating cavity, the water inlet is opposite to the upper end of the impeller, the plurality of water outlets surround the side surface of the impeller, the impeller is separated from the filter screen, and the driving device is used for driving the impeller to rotate so as to enable water to circulate in the cleaning chamber; the filter screen comprises a screen body in a cover shape, the screen body comprises a top wall positioned in the cleaning chamber and a side wall connected with the top wall, the top wall is provided with the water inlet, and the side wall is provided with the plurality of water outlets; the cleaning machine comprises a shell, the filter screen is arranged on the shell, the shell is covered by the net body, the impeller is positioned between the shell and the net body, and the impeller is arranged above the shell;

the bottom of the washing tank body is provided with an upward protruding round platform, the shell cover is arranged on the round platform, the driving device comprises a motor and a rotating shaft, the motor is arranged at the bottom of the round platform, the motor is positioned outside the bottom of the washing tank body, the motor is positioned outside the washing tank body, one end of the rotating shaft is connected with the motor, the other end of the rotating shaft sequentially penetrates through the round platform and the shell to be connected with the impeller, and the motor is used for driving the rotating shaft to rotate so as to drive the impeller to rotate.

2. The cleaning machine of claim 1, wherein the filter screen comprises a mesh structure disposed on the water inlet, the mesh structure covering the water inlet, the mesh structure comprising a plurality of first through holes disposed at intervals, the plurality of first through holes communicating with the cleaning chamber and the water inlet.

3. The cleaning machine of claim 1, wherein the cleaning machine comprises an annular motor mount, the motor being mounted on the circular table by the motor mount, the motor mount being located outside the bottom of the circular table, the circular table being located between the housing and the motor mount;

the other end of the rotating shaft sequentially penetrates through the motor mounting seat, the round table and the shell to be connected with the impeller.

4. The cleaning machine of claim 3 wherein said motor mount defines a first shaft aperture, said cleaning machine including a first annular seal, said first shaft aperture and said first seal being sequentially disposed at the other end of said shaft, said first seal being disposed in compression between said motor mount and said circular table to seal a gap between said shaft and said first shaft aperture.

5. The cleaning machine of claim 4 wherein said motor mount defines a cavity, said first shaft opening in a bottom surface of said cavity, said first seal being compressively disposed in said cavity to seal a gap between said spindle and said first shaft opening.

6. The cleaning machine of claim 4, wherein a four-lobe hole is formed in the top surface of the circular table, an outer boss matched with the four-lobe hole in shape is formed in the top surface of the motor mounting seat, the position of the outer boss corresponds to the position of the four-lobe hole, the first shaft hole penetrates through the outer boss, and the other end of the rotating shaft penetrates through the first shaft hole, the four-lobe hole and the shell to be connected with the impeller.

7. The cleaning machine of claim 6 wherein said motor mount defines an annular seal groove spaced from said outer boss, said seal groove surrounding said outer boss, said cleaning machine including an annular second seal member disposed in compression within said seal groove for sealing a gap between said motor mount and said boss.

8. The cleaning machine of claim 1, wherein a groove surrounding the circular table is formed in the bottom surface of the cleaning tank body, a water outlet is formed in the bottom of the groove, and the water outlet is communicated with the cleaning chamber;

the filter screen includes from the lateral part of the net body outwards extends cornice, cornice centers on the net body, a plurality of second through-holes that the interval set up are seted up to the cornice, a plurality of second through-holes intercommunication outlet reaches the cleaning chamber, the cornice lid is established the recess.

9. The cleaning machine of claim 6 wherein said housing defines a circular first boss and a four-lobed second boss, said first boss being spaced from said second boss, said second boss surrounding said first boss;

the top surface of motor mount pad is formed with circular shape interior boss, interior boss with outer boss interval sets up, outer boss centers on interior boss, first shaft hole runs through interior boss, outer boss centers on the second boss, first boss centers on interior boss.

10. The cleaning machine of claim 1, wherein a plurality of hooks are formed at a lower portion of the net body at intervals, a plurality of positioning bosses are formed at an outer side surface of the housing at intervals, the number of the hooks is the same as the number of the positioning bosses, and each hook is clamped into the bottom of the corresponding positioning boss to fix the filter screen.