CN220937951U - Efficient dirt-sucking surface cleaning device - Google Patents

Abstract

The utility model discloses a high-efficiency dirt-absorbing surface cleaning device, which comprises a ground brush with a dirt absorbing opening, a machine body hinged with the ground brush and a dirt absorbing fan, wherein a roller brush for cleaning a surface to be cleaned, a dirt scraping piece and a carding piece are arranged on the ground brush, the dirt scraping piece and the carding piece are arranged above the dirt absorbing opening in sequence, a plurality of comb teeth are arranged on the carding piece, at least part of the comb teeth of the carding piece extend into the bristles, each comb tooth comprises a penetrating section and a guide section, the comb teeth extend downwards and at least partially shield the dirt absorbing opening, a slit effect area is formed by a gap between two adjacent penetrating sections corresponding to the dirt absorbing opening, wind pressure of the slit effect area is increased, windings such as hair do not need to be manually stripped off on the roller brush, the treatment effect on windings such as dirt liquid, dirt and hair is good, the dirt absorbing capacity of the surface cleaning device is improved, and the surface cleaning device is more humanized and more intelligent in use.

Description

Efficient dirt-sucking surface cleaning device

Technical Field

The utility model belongs to the technical field of cleaning appliances, and particularly provides a surface cleaning device.

Background

With the development of surface cleaning technology, surface cleaning equipment gradually goes into the family life of people and becomes a common electrical appliance for cleaning floors. Surface cleaning apparatus generally comprise a main body and a floor brush in which a roller brush is provided as a cleaning member, which is rubbed against the floor to effect cleaning. In the process of cleaning the floor by the cleaning member, the dirt on the cleaning member and the adhered dirt need to be scraped synchronously by the dirt scraping member, so that the cleaning member is cleaner for cleaning the surface to be cleaned, in addition, in the process of cleaning the windings with hair, thread ends and the like, the windings are easy to wind on the outer surface of the cleaning member, especially the periphery of a single roller, in order to clean the foreign matters wound on the cleaning member, a technician is provided with comb teeth on the floor brush, so that the windings on the outer surface of the cleaning member are scraped off by the comb teeth.

Such as application number 201711481216.4, a prior art cleaning device having a comb unit for removing debris from a cleaning roller is disclosed in which the comb unit includes a series of spaced apart protrusions or teeth extending into the cleaning roller to prevent accumulation and removal of debris (e.g., hair, threads, etc.), the protrusions extending along a substantial portion of the cleaning roller and partially into the cleaning roller to intercept the debris as it passes around the roller, the protrusions having angled leading edges that are not aligned with the center of rotation of the cleaning roller and are directed in or against the direction of rotation of the cleaning roller. The comb unit and protrusions are shaped and configured to facilitate removal of debris from the cleaning roller with minimal impact on the operation of the cleaning apparatus. Although the protrusions or the teeth can well prevent the accumulation and winding of hair, wires and the like, as the interval between the protrusions or the teeth is smaller, solid garbage is easy to remain in the interval between the protrusions or the teeth, and the wound matters such as the hair, the wires and the like are wound on the protrusions or the teeth and can not enter the dirt suction port, so that new troubles are brought to customers by cleaning the protrusions or the teeth after dirt is removed; meanwhile, since most of the protrusions extend into the cleaning roller, especially the front edges of the protrusions are not aligned with the rotation center of the cleaning roller, and are guided to the rotation direction of the cleaning roller or against the rotation direction of the cleaning roller, when the cleaning roller rotates, resistance is increased to the rotation of the cleaning roller, so that the work load of a motor for driving the cleaning roller to rotate is increased, the power of the motor is insufficient, the motor needs to be driven with higher power, the cost of the surface cleaning device is increased, energy and resources are wasted, in addition, long-term use of the protrusions or teeth with the structure causes long-term large-area friction of the cleaning member of the cleaning roller, a tooth mark appears on the cleaning roller, the service life of the cleaning member of the cleaning roller is greatly reduced, the cleaning member of the cleaning roller is locally thinned, the cleaning effectiveness of the cleaning roller is also uneven, the problem of local cleaning is further caused, and the cleaning effect of the surface cleaning device is reduced after a period of use.

Disclosure of utility model

The utility model aims to provide a surface cleaning device, which utilizes the comb teeth of a carding piece to downwards extend to at least partially shield a dirt suction port, so that a slit effect area is formed at the dirt suction port by the gap between two adjacent penetrating sections, the wind pressure of the slit effect area is increased, the suction effect on dirt liquid, dirt and winding is good, and the dirt suction force of the surface cleaning device is further improved.

In order to solve the problems in the prior art, the utility model provides a high-efficiency dirt-absorbing surface cleaning device, which comprises a ground brush with a dirt absorbing opening, a machine body hinged with the ground brush and a dirt absorbing fan, wherein a roller brush for cleaning a surface to be cleaned, a dirt scraping piece and a carding piece for cleaning the roller brush are arranged on the ground brush, the roller brush comprises a cleaning piece with bristles and a roller, and the dirt scraping piece and the carding piece are sequentially arranged above the dirt absorbing opening.

Further, the width of the comb teeth is b, the distance between two adjacent comb teeth is L, wherein b is more than L, and the distance L is more than or equal to 0.7mm and less than or equal to L and less than 1.5mm.

Further, the height of the penetrating section for shielding the dirt sucking opening is h, wherein h is more than 0.7mm and less than or equal to 3.5mm.

Further, the comb teeth are at least partially positioned below the central axis of the roller brush, and the front tooth surfaces of the comb teeth are arranged in a downward extending mode along the periphery of the cleaning piece.

Further, the dirt scraping piece and the carding piece are in contact with the cleaning piece, the front end of the dirt scraping piece is located in front of the tooth tip, and a suction negative pressure area is formed among the front surface of the carding piece, the lower surface of the dirt scraping piece and the outer surface of the roller brush.

Further, a diversion trench is arranged between the two adjacent diversion sections, and the diversion trench is arranged corresponding to the gap of the penetrating section.

Further, the diversion trench extends upwards to the lower surface of the dirt scraping section, and a suction negative pressure area is formed by the gap among the part of the lower surface of the dirt scraping piece, the diversion trench and the outer surface of the roller brush; or the penetrating section is arranged at the lower part of the comb teeth, the diversion trench extends upwards to the front surface of the carding piece, and a suction negative pressure area is formed by the part of the lower surface of the dirt scraping piece, the part of the front surface of the carding piece, and a gap between the diversion trench and the outer surface of the roller brush.

Further, the rear tooth surfaces of the comb teeth are arranged obliquely downwards relative to the horizontal plane.

Further, the tooth thickness of the comb teeth gradually decreases from bottom to top.

The surface cleaning device has at least the following beneficial effects:

1. According to the utility model, the comb teeth of the comb part are at least partially stretched into the bristles of the roller brush and comprise the penetrating section and the guide section, the comb teeth extend downwards and at least partially shield the dirt suction opening, when the surface cleaning device cleans the surface to be cleaned while scraping dirt, the dirt suction fan works, so that the effective passing area when airflow moves to the dirt suction opening is reduced due to the fact that the comb teeth extend downwards to shield the dirt suction opening, and compared with the dirt suction opening which is not shielded by the comb teeth, wind pressure is increased, and most of dirt liquid, dirt, hair and other winding matters sucked from the surface to be cleaned to the dirt suction opening can easily enter the dirt suction opening. Simultaneously, the roller brush rotates, and part of dirt, dirty liquid and hair winding on the cleaning member of the roller brush continuously moves upwards along with the roller brush, the carding member and the dirt scraping member are sequentially contacted with the roller brush, the winding such as dirty liquid or dirt hair adhered on the brush surface of the roller brush is stripped from the roller brush by utilizing the comb teeth, the winding such as dirt or hair in the brush hair of the roller brush is scraped or the adhesion force of the winding such as dirt or hair in the brush hair of the roller brush becomes loose, then the roller brush continuously rotates, the brush body of the roller brush is scraped by the dirt scraping member, the dirt, the dirty liquid and the hair and the like on the brush body of the roller brush are scraped off by the dirt scraping member, and the stripped and loosened winding such as hair is washed out between the comb teeth. Even if larger solid particles with a small difference with the size of the comb teeth are present, a penetrating gap is formed between penetrating sections of the comb teeth and is communicated with the dirt suction port, even if larger particles or clustered windings with a small difference with the size of the comb teeth enter the gap of the penetrating sections of the comb teeth, the penetrating sections of the suspended comb teeth deform under the action of larger wind pressure, so that the gap between the comb teeth is enlarged, and further the larger particles or clustered windings are sucked into the dirt suction port from the gap between the comb teeth by the action of larger suction force, thereby preventing hair and solid dirt from accumulating in the gap between the comb teeth, improving the cleaning effect of dirt scraping pieces and the comb teeth on the roller brush, and especially having better stripping and suction effects on the windings, and avoiding dirt or wound retention on the comb teeth, so that good experience is brought to customers.

2. The width of the comb teeth is b, the distance between two adjacent comb teeth is L, b is larger than L, under the action of the dirt suction fan, a slit effect is generated at the distance between the penetrating sections of the two adjacent comb teeth at the dirt suction port, and the wind pressure is increased, so that dirt, dirt liquid, hair and the like among the comb teeth can be sucked conveniently. And the distance L is less than or equal to 0.7mm and less than or equal to L and less than 1.5mm, so that the reasonable gap between penetrating sections of comb teeth shielding the dirt absorbing mouth is ensured, the area of a slit effect area is ensured, the sufficient wind pressure can be generated at the area to promote the suction force, the generated suction force is enough to be greater than the adhesive force of dirt or winding matters or dirt liquid, and the clamping force of the winding matters or larger particles clamped between the two comb teeth is further beneficial to dirt entering the dirt absorbing mouth through the gap of the comb teeth smoothly. When the distance L is smaller than 0.7, the comb teeth are too dense, so that the slit effect is difficult to generate, and the penetrating sections of the comb teeth have smaller deformation space when being acted by wind pressure, which is unfavorable for sucking dirt liquid or dirt and winding. When the distance L is larger than 1.5, the number of teeth of the dirt absorbing mouth is reduced in unit length, so that the dirt scraping surface of the comb teeth in unit length is reduced, and especially the stripping effect on the windings is reduced, although the overall dirt absorbing force and dirt absorbing area of the floor brush are larger, the windings with larger particles cannot be clamped, the area of the slit effect area of the comb teeth is reduced due to the larger distance L, the wind pressure is reduced in multiple, the suction force is reduced, and instead, the dirt liquid or dirt or the windings which are not beneficial to the penetrating section of the comb teeth are sucked away rapidly.

3. The height of the penetrating section for shielding the dirt absorbing port is h, wherein h is more than 0.7mm and less than or equal to 3.5mm, the length of the penetrating section for shielding the comb teeth at the dirt absorbing port is ensured to be enough, so that the wind pressure of the penetrating section at the dirt absorbing port can be increased, the suction force generated by the increased wind pressure is enough to resist the adhesive force of dirt or winding matters or dirt liquid in a gap, and the clamping force of the winding matters or larger particles clamped between the two comb teeth is further facilitated, and dirt smoothly enters the dirt absorbing port through the gap of the comb teeth. When h is greater than 3.5, the length of the penetrating section and the comb teeth shielding the dirt absorbing opening is larger, so that the dirt absorbing area of the dirt absorbing opening is reduced, the dirt absorbing problem that dirt or dirt liquid or winding is peeled off and scraped from a cleaning piece of the roller brush by the dirt scraping piece and the comb teeth is solved, but larger dirt absorbed by the surface cleaner from the surface to be cleaned is blocked by the comb teeth, cannot enter the dirt absorbing opening, and worse experience is brought to customers. When h is less than 0.7, the length of the penetration section and the comb teeth shielding the dirt suction opening is small, although larger dirt sucked from the surface to be cleaned can be sucked into the dirt suction opening, and hairs and the like cannot be wound on the penetration section of the comb teeth, but the stripping effect of the comb teeth on the windings on the cleaning piece of the roller brush is insufficient, so that some windings cannot be stripped from the cleaning piece, in addition, the slit effect is weak between the intervals of the penetration section due to the small length of the comb teeth shielding the dirt suction opening, so that wind pressure is small, even if fewer and lighter windings can enter the dirt suction opening, the suction force generated by the wind pressure is insufficient to overcome the adhesion force of the dirt filled with particles between the comb teeth between the penetration sections of the comb teeth, so that the small particle dirt is difficult to suck cleanly.

4. Through will the broach is located the central axis below of roller brush at least partially, the front tooth face of broach extends the setting downwards along the periphery of cleaning member, makes the broach of carding can stretch into in the brush hair of cleaning member, and the front tooth face of broach is the state of face contact with the cleaning member of roller brush, and the tooth point of broach can stretch into in the brush hair on the cleaning member and pass the brush hair and stretch out downwards, perhaps make the broach of carding all comb hair downwards along the tangential direction of the cleaning member of roller brush, not only can effectively scrape and peel off the winding thing on the roller brush outward and hide the filth at the brush hair root, thereby significantly reduced the tooth point directly stretch to the brush hair of broach and form obvious tooth mark on the brush hair, can not increase the resistance that the roller brush rotates simultaneously, also reduced the stall problem emergence of the driving motor that causes the driving roller brush to rotate because the increase of resistance.

5. Scrape dirty piece and comb the piece and have stronger scraping and scrape dirty ability compared, owing to scrape dirty piece and comb a part laminating setting, scrape dirty piece and comb the piece and all contradict with the cleaning member, simultaneously owing to scrape the front end of dirty piece and be located the place ahead of the tooth point of run through the section, and both contradict with the roller brush, at the dirt absorbing fan during operation, the regional air current that the clearance between the lower surface of the front surface of carding the piece, the lower surface of scraping the dirty piece and the roller brush surface is located dirt absorbing mouth top can not pass through, therefore these regions are leeward region, leeward region just forms the suction negative pressure district. The gap between the front surface of the carding piece and the lower surface of the dirt scraping piece and the outer surface of the roller brush forms a suction negative pressure area, the dirt scraping piece extrudes and scrapes the cleaning piece, under the negative pressure environment, dirt liquid is scraped and then gathered to a certain extent in the suction negative pressure area between the lower part of the dirt scraping piece and the front surface of the carding piece, larger water pressure is generated, liquid flow instantaneously gushes into the guide sections of the comb teeth, the liquid flow is divided into a plurality of liquid flows by the guide sections of the comb teeth and enters the guide sections, the water pressure is further increased instantaneously between the guide sections of the comb teeth, therefore, the winding or dirt stripped off by the comb teeth from the cleaning piece is flushed under the action of the plurality of liquid flows with the water pressure increased, the liquid flows drive the winding or dirt such as dirt to pass through the area where the front tooth surface of the comb teeth is in line contact with the cleaning piece of the roller brush and flow to the penetration section at the dirt absorbing port. Some hair may be wound around the periphery of the comb teeth, and some small particle dirt may adhere to the gaps between adjacent comb teeth, but under the high hydraulic action that the gaps of the comb teeth are instantaneously divided into a plurality of large hydraulic small liquid flows, the dirt in the hair and the gaps is washed at a high speed so as to offset the adsorption force between the hair and the comb teeth, under the high pressure suction action of a slit effect area formed by the gaps of the penetrating sections of the comb teeth of the dirt absorbing port, the dirt between the comb teeth can be wrapped with the solid dirt such as hair and the like and is absorbed along the gaps of the comb teeth and enters the dirt absorbing port, so that the accumulation of the solid dirt such as the hair and the like in the gaps of the comb teeth is avoided, the cleaning effect of the dirt scraping piece and the comb teeth on the surface of the roller brush is improved, the cleaning effect of the roller brush can be ensured to be normal, the probability of retaining the tooth mark on the surface of the cleaning piece of the roller brush is reduced when the continuous rotation cleaning work is ensured, the secondary pollution caused by the dirt of the cleaning piece is reduced, and the cleaning of the surface to be cleaned thoroughly.

6. Through will be equipped with the guiding gutter between two adjacent water conservancy diversion sections, the guiding gutter corresponds the clearance setting of run-through section for the guiding gutter is good to the drainage effect that the clearance of the run-through section of liquid flow below flows, makes liquid flow drive winding such as filth or hair and flows down to run-through section more smooth and easy, not only can wash away the clearance of run-through section with the winding thing such as filth or hair in the guiding gutter fast smoothly, thereby makes things convenient for it to be absorbed from dirt absorbing mouth.

7. Through setting up the lower slope of back flank of tooth homogeneous phase, make the broach form is towards the guide surface of dirt absorbing mouth, for the dirt that is inhaled the roller brush intracavity of ground brush on waiting clean surface under dirt absorbing fan and roller brush effect can be better by near leading-in dirt absorbing mouth to better completion dirt absorbing process, improved dirt absorbing effect when clean, improved cleaning efficiency.

Drawings

FIG. 1 is a schematic view of a surface cleaning apparatus according to the present utility model;

FIG. 2 is a schematic view of a floor brush of the surface cleaning apparatus

FIG. 3 is a cross-sectional view of the floor brush of FIG. 2 taken along the direction A-A;

fig. 4 is an enlarged view at a in fig. 3;

FIG. 5 is an exploded view of a roller brush with a roller brush cover mounted on a ground brush;

FIG. 6 is a front view of the floor brush of FIG. 2;

Fig. 7 is an enlarged view at B in fig. 6;

FIG. 8 is a schematic diagram of the path of air flow through the gaps between the teeth of the comb when the suction fan is in operation;

FIG. 9 is a cross-sectional view of the structure at B in FIG. 7 taken along the direction C-C;

FIGS. 10 and 11 are further embodiments of the attachment portion of the comb in example one;

FIG. 12 is a sectional view of a floor brush structure of the surface unit according to the second embodiment;

Fig. 13 is an enlarged view of D in fig. 12;

fig. 14 is an enlarged view at G in fig. 13;

Fig. 15 and 16 are other embodiments of the comb in example two.

The reference numerals are as follows:

1. A body; 11 handles; 12. a power source system; 2. a floor brush; 21. an upper housing; 22. a lower housing; 221. a front side; 222. a first flange; 223. a second flange; 224. a bottom; 23. a receiving chamber; 24. a dirt suction port; 241. a top; 25. a dirt suction hose; 26. a roller brush cover; 27. a roller brush cavity; 28. a ground scraping strip; 3. a clean water tank; 4. a roller brush; 41. brushing; 42. a cleaning member; 43. a roller; 44. a first rotating roller; 45. a second rotating roller; 46. a support frame; 500. suction negative pressure zone (liquid flow pressurization zone); 5. a dirt scraping member; 51. a mounting section; 52. a suspended section; 521. a front end; 53. a transition section; 54. a lower surface; 6. a carding member; 61. comb teeth; 611. a penetrating section; 612. a diversion section; 613. a gap; 614. a diversion trench; 615. a slit effect region; 616. a front tooth surface; 617. a rear tooth surface; 6171. a first inclined surface; 6172. a second inclined surface; 618. tooth tips; 62. a connection part; 621. a drainage surface; 64. a fixing part; 7. a dirt holding barrel; 8. a water dividing piece.

Detailed Description

It should be understood by those skilled in the art that the embodiments described below are only preferred embodiments of the present application, which are merely for explaining the technical principles of the present application, and are not intended to limit the scope of the present application.

It should be noted that, in the description of the present application, terms such as "center," "upper," "lower," "top," "bottom," "vertical," "horizontal," "inner," "outer," and the like indicate directional or positional relationships, and are based on the directional or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that a device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; the connection may be direct, indirect via an intermediate medium, or communication between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances.

The surface cleaning device of the utility model comprises a hand-held surface cleaning device, such as a floor cleaner, a dust collector, a cloth cleaner and the like, and also comprises a self-moving surface cleaning device, such as a sweeping robot, a sweeping robot and the like.

The flow rate of the liquid is increased when the liquid passes through the stenosis. The flow rate of the gas stream is also increased by the flow of similar liquids in the tube as the ground passes over narrow terrain, and the density is also increased by the compressibility of the gas. The effect of such topographical canyons on airflow is known as the "slot effect," also known as the "canyon effect. The slit effect in the utility model is the same as the canyon effect in daily speaking, and refers to the phenomenon that wind sucked into a roller brush cavity from the position between a roller brush of a ground brush and a ground scraping strip moves to a dirt sucking port and encounters a gap between comb teeth shielding the dirt sucking port, and the wind speed is increased and the wind pressure is increased when the wind passes through the narrower gap due to the narrower gap.

The slit effect area of the utility model is an area formed by gaps between two adjacent comb teeth which are arranged corresponding to the dirt sucking opening and are used for shielding the dirt sucking opening. For example, 8 comb teeth for shielding the dirt sucking mouth are provided, and 7 comb teeth are provided in the comb teeth of the 8 comb teeth, and the area formed by the 7 gaps is a slit effect area.

The roller brush can be a single-roller, a double-roller or a crawler-type roller brush. In the present embodiment, a single-roller brush is used, the roller brush 4 is mounted on the floor brush, the axial direction of the roller brush 4 is defined as the left-right direction, and the horizontal direction perpendicular to the axial direction of the roller brush 4 is defined as the front-rear direction; during the rotation of the roller brush 4, the roller brush 4 is operated clockwise from the left, i.e. the roller brush is rotated from bottom to top and further back, so that the floor brush is moved back. When the surface cleaning device works, the clean water tank 3 supplies liquid for the roller brush, the roller brush rotates, the cleaning piece and the brush hair wipe the surface to be cleaned, the dirt scraping piece extrudes and scrapes the roller brush to scrape dirt liquid and dirt on the brush hair and/or the cleaning piece, the comb teeth scrape the windings such as hair on the brush hair and the cleaning piece, the dirt absorbing fan works, dirt liquid and dirt on the surface to be cleaned are absorbed through the dirt absorbing opening, and the scraped dirt liquid and dirt on the roller brush.

Embodiment one:

As shown in fig. 1 to 11, the surface cleaning device with efficient dirt suction according to the present utility model includes a floor brush 2 capable of moving on a surface to be cleaned (typically, the floor), a machine body 1 hinged to the floor brush 2, wherein the rear portion of the floor brush 2 is pivotally connected to the lower portion of the machine body 1, a handle 11 for driving is disposed at the upper end of the machine body 1, a dirt containing tank 7, a cleaning tank 3, and a dirt suction fan (not shown) for sucking dirt liquid and/or dirt into the dirt containing tank 7 are disposed on the machine body 1, a detachable power source system 12 is further disposed on the machine body 1, the dirt suction fan and a battery pack are disposed in the power source system 12, the power source system 12 is disposed above the dirt containing tank 7 and on the same side as the dirt containing tank 7, a dirt suction port 24 is disposed on the floor brush 2, the floor brush 2 includes an upper housing 21 and a lower housing 22, the upper housing 21 is fastened on the lower housing 22 to form a receiving cavity 23, a ground scraping bar 28 is disposed at the front side of the bottom 222 of the lower housing 22, and the ground scraping bar 28 is made of the hard scraper bar. The dirt absorbing port 24 is arranged on the front side 221 of the lower shell 22, the dirt absorbing port is rectangular, the four corners of the dirt absorbing port are rounded, a dirt absorbing hose 25 communicated with the dirt absorbing port 24 is arranged in the accommodating cavity 23, the dirt absorbing hose 25 penetrates out from the rear side of the accommodating cavity 23 upwards to be connected with a dirt absorbing pipe (not shown in the figure) on the dirt containing barrel 7, the ground brush 2 is further provided with a roller brush 4 for cleaning a surface to be cleaned, a dirt scraping piece 5 and a carding piece 6 for cleaning the roller brush 4, and the dirt scraping piece in the embodiment is a metal dirt scraping piece. As shown in fig. 3 and 4, the roller brush 4 includes a first rotating roller 44, a second rotating roller 45, a supporting frame 46 connecting the first rotating roller 44 and the second rotating roller 45, and cleaning members including cleaning members 42 and bristles 41 sleeved on the outer surfaces of the first rotating roller 44 and the second rotating roller 45. The diameter of first rotor 44 and second rotor 45 equals, scrape dirty piece 5 setting in the central axis EF top of first rotor 44, the unsettled section 52 downward sloping setting of dirty piece 5 is scraped, the front side of brush 2 is located to brush 4, brush 2's front side still is equipped with and shelters from in brush cover 26 of brush 4 top, and the front side 221 of upper casing 21 and lower casing 22 and brush cover 26 form the roller brush chamber 27 of installing brush 4, scrape dirty piece 5 and carding piece 6 and locate in proper order the top of suction inlet 24, scrape dirty piece 5 top still and be equipped with branch water spare 8, be equipped with a plurality of broachs 61 on the carding piece 6, the broach 61 of carding piece 6 is at least partly stretched into in brush 41 hair of brush 4, broach 61 include run-through section 611 and with water conservancy diversion section 612, broach 61 include the back flank 617 of keeping away from brush 4 and the front flank 616 of brush setting towards brush cover 26, from the front side of brush 4 to the suction inlet side, and the suction inlet is sheltered from the dirt side to the suction inlet side of brush 61, and the dirt can be passed through to the suction inlet by the dirt and the dirt is more easily and the dirt is inhaled to the dirt is more than the suction inlet is less than the suction inlet is had, and the dirt is moved to the dirt is more than the suction inlet is inhaled to the dirt is blown down to the dirt. The gaps 613 penetrating the front tooth surface 616 and the rear tooth surface 617 are formed between the two adjacent penetrating segments, the gaps 613 of the two adjacent penetrating segments 611 form a slit effect area 615 corresponding to the dirt absorbing port 24, as shown in fig. 7 and 8, when the dirt absorbing fan works, the wind pressure increase wind speed at the gap 613 is also increased, the wind pressure near the dirt absorbing port which is not shielded by the comb teeth is smaller than the wind pressure near the dirt absorbing port, so that unbalanced airflow is generated at the dirt absorbing port, and the windings such as hair, dirt and dirt liquid at the gap of the comb teeth are smoothly absorbed into the dirt absorbing port by the faster wind speed under the action of the larger wind pressure of the unbalanced airflow, thereby further improving the dirt absorbing efficiency. Even if larger solid particles with a size which is not much different from that of the comb teeth exist, due to the fact that the penetrating gaps are formed between the penetrating sections of the comb teeth and are communicated with the dirt sucking openings, even if larger particles or agglomerated windings with larger sizes enter the gaps of the penetrating sections of the comb teeth, the larger particles or the windings squeeze the comb teeth under the action of larger wind pressure, the penetrating sections of the comb teeth deform to enlarge the gaps between the comb teeth, the contact surface is reduced, the adhesive force is further reduced, and the solid dirt is more easily sucked into the dirt sucking openings by the larger suction force, and therefore hair and solid dirt are prevented from accumulating in the gaps of the comb teeth, and especially the stripping and suction effects on the windings are good, dirt or the windings are not reserved on the comb teeth, so that good experience feeling is brought to customers.

As shown in fig. 3 and 4, the front side of the bottom 224 of the lower housing 22 is further provided with a ground scraping bar 28 contacting the surface to be cleaned, the ground scraping bar 28 is located below the dirt suction opening 24 and forms a dirt suction nozzle 29 with the roller brush 4, the downward extending portion of the carding member 6 is located between the dirt suction opening 24 and the dirt suction nozzle 29, and the carding member 6 has a guiding surface inclined toward the dirt suction nozzle 29, and the guiding surface is a rear tooth surface 617 of the comb teeth. The comb teeth 61 extend downwards and partly shield the dirt absorbing mouth 24, the passing area of the air flow when running to the dirt absorbing mouth 24 shielded by the comb teeth 61 is suddenly reduced, so that the air pressure is increased, the suction force near the dirt absorbing mouth 24 shielded by the comb teeth 61 is increased, the stay and adhesion of dirt liquid and dirt at the dirt absorbing mouth 24 are reduced under the guide action of the increased suction force and a carding piece, most dirt liquid and dirt can more effectively and rapidly enter and pass through the dirt absorbing mouth to be continuously sent upwards into the dirt containing barrel at the dirt absorbing mouth shielded by the comb teeth, and the dirt absorbing efficiency is improved.

As shown in fig. 3 to 7, the front side 221 of the lower housing 22 is provided with a first protruding edge 222 and a second protruding edge 223 protruding forward, the dirt absorbing opening 24 is disposed on the front side 221 between the first protruding edge 222 and the second protruding edge 223, the carding member 6 includes a comb 61, a fixing portion 64, and a connecting portion 62 connecting the fixing portion and the comb, the comb 61 protrudes downward from the connecting portion 62, the longitudinal section of the comb is triangular or approximately triangular, a guiding groove 614 is further disposed between the two adjacent guiding sections 612, the guiding groove 614 is disposed on the connecting portion, the guiding sections 612 are connected into a whole through the connecting portion, that is, the guiding groove 614 is disposed on the connecting portion 62 between the two adjacent guiding sections 612, the guiding groove 614 extends upward to the lower surface of the dirt scraping section 5, that is, the guiding groove 614 extends from the lower end of the connecting portion 62 to the top end of the connecting portion 62, that is, the guiding groove 61 extends upward along the front surface of the connecting portion 62 to the connecting portion, and gradually reduces in thickness to the front end of the connecting portion. The guiding groove 614 is the tooth's socket of two adjacent broachs 61, from the bottommost end of connecting portion 62 to tooth point 618 be run through the section, guiding groove 614 corresponds the clearance 613 setting of run through section 611, scrape dirty piece 5 and include installation section 51 and unsettled section 52, installation section 51 sets up in fixed part 64 top, the lower surface of installation section 51 and the upper surface laminating setting of fixed part 64, the top surface and the unsettled section 52 at least part laminating of connecting portion 62, the forward protrusion connecting portion 62 setting of the front end 521 of unsettled section 52, scrape dirty piece 5 top setting water knockout drum 9, the installation section 51 and the fixed part 64 laminating clamp of scraping dirty piece 5 are established between first flange 223 and water knockout drum 9 lower surface. The comb teeth 61 comprise a rear tooth surface 617 deviating from the roller brush 4 and a front tooth surface 616 arranged towards the roller brush, the front tooth surface and the rear tooth surface are rectangular extending from the connecting part to the tooth tip, the rear tooth surface 617 is obliquely arranged towards the direction of the dirt suction nozzle 29, the width of the comb teeth 61 is b, the tooth width b is rectangular, the distance between the gaps 613 of two adjacent comb teeth 61 is L, namely the gap between the width of the tooth grooves and the gap is equal to the gap L, wherein b is more than L, the gap L is 0.7mm less than or equal to L and less than 1.5mm, the reasonable gap between penetrating sections of the comb teeth shielding the dirt suction port is ensured, the area of a slit effect area is ensured, sufficient wind pressure can be generated at the position to promote suction force, the generated suction force is enough to be larger than the adhesive force of dirt or winding or dirt liquid, and the clamping force of the winding or larger particles clamped between the gaps of the two comb teeth, so that dirt smoothly enters the dirt suction port through the gap of the comb teeth. The height of the penetrating segment 611 shielding the dirt absorbing port 24 is h, wherein h is more than 0.7mm and less than or equal to 3.5mm, the length of the penetrating segment shielding the comb teeth at the dirt absorbing port is ensured to be enough, so that the wind pressure of the penetrating segment shielding the dirt absorbing port can be increased, the suction force generated by the increased wind pressure is enough to resist the adhesive force of dirt or winding matters or dirt liquid in the gap, and the clamping force of the winding matters or larger particles clamped between the two comb teeth, so that dirt can smoothly enter the dirt absorbing port through the gap of the comb teeth. In this embodiment, l=1.2 mm, h=3 mm, the length of the comb teeth formed by such a scheme is reasonable, the point where the tooth tip 618 is tangent to the cleaning piece 42 of the roller brush 4 is slightly far away from the central axis EF of the roller brush, that is, the tooth tip of the comb teeth can be in contact with the cleaning piece at an earlier point, the stripping treatment effect on the wound matter on the roller brush is better, the length of the comb teeth stretching into the bristles is longer, the contact area of the comb teeth and the comb hair is larger, obvious tooth marks are not generated on the cleaning piece, the movement resistance of the comb teeth to the roller brush is also not large, in addition, the length of the comb teeth for shielding the dirt suction opening is enough, the slit effect is easier to be generated, the surface cleaning device is facilitated to suck larger garbage from the surface to be cleaned, and a stronger slit effect can be formed at the position where the comb teeth shield the dirt suction opening, so that a stronger suction force is generated, and the cleaning effect on dirt or the wound matter scraped by the comb teeth and the dirt scraping piece is better.

The comb teeth 61 are at least partially located below the central axis EF of the roller brush 4, and the front tooth surfaces 616 of the comb teeth 61 extend downwards along the periphery of the cleaning member 42, so that the tooth tips of the comb teeth can extend into the bristles on the cleaning member and penetrate through the bristles to downwards extend, or the comb teeth of the comb member comb the bristles downwards along the periphery of the cleaning member of the roller brush, so that not only can the windings on the surface of the roller brush be effectively scraped and stripped, but also the probability that the tooth tips directly extend to the bristles of the comb teeth to form obvious tooth marks on the bristles is reduced, the resistance of the rotation of the roller brush is not increased, and the probability of the occurrence of the locked rotor problem of the driving motor for driving the rotation of the roller brush due to the increase of the resistance is also reduced. As shown in FIG. 4, the angle a of the front tooth surface 616 inclined downwards along the top 241 of the dirt absorbing opening 24 is 80 degrees less than or equal to a < 90 degrees, so that the tooth tips of the comb teeth extend into the bristles, the comb teeth can comb the bristles downwards, the length of the comb teeth which can extend into the bristles of the cleaning member is reasonable, the comb teeth can effectively scrape the wound such as the hair which is to be wound on the roller brush, and the like, and cannot collide too much with the cleaning member and even form deeper tooth marks. The rear tooth surface 617 is arranged obliquely downwards along the connecting part 62, the rear tooth surface 617 of the comb tooth is formed by connecting a first inclined surface 6171 and a second inclined surface 6172, the first inclined surface 6171 is connected with the connecting part 62, the inclined angle of the first inclined surface 6171 is beta, wherein a is less than or equal to beta and less than or equal to 90 degrees, and the inclined angle beta of the first inclined surface 6171 is more than or equal to the inclined angle of the front tooth surface 616 and is 90 degrees at maximum. The included angle between the second inclined plane 6172 and the horizontal plane is θ, so that the inclined angle θ of the second inclined plane 6172 is θ, and the inclined angle θ of the second inclined plane 6171 is equal to or less than 30 ° and equal to or less than 35 °, in this embodiment, the inclined angle θ of the rear tooth surface 617 refers to the inclined angle θ of the second inclined plane 6172, therefore, under the guiding effect of the inclined angle θ of the second inclined plane 6172, the dirt liquid and the dirt are easier and more difficult to move to the vicinity of the dirt absorbing port, the angle just conforms to the angle formed by the dirt absorbing hose passing through the dirt absorbing port from the rear part of the accommodating cavity upwards and the dirt absorbing pipe on the dirt accommodating barrel, so that the guiding effect is good, and the first inclined plane 6171 plays a good blocking and steering effect when the liquid flowing backwards more than the liquid flowing across the comb teeth 61, especially has a good blocking and steering effect on the liquid flowing upwards after being extruded along the space between the comb teeth and the dirt absorbing port, the dirt absorbing port is more easily moved to the dirt absorbing port again after the liquid flowing back, the dirt absorbing hose passes through the dirt absorbing port, the dirt absorbing port is just in the dirt absorbing port, the dirt absorbing hose is more smoothly, and the dirt absorbing and dirt is more efficiently flowed into the dirt absorbing and dirt absorbing pipe is more smoothly. In the present embodiment, the inclination angle a=84° of the front tooth surface, the inclination angle θ=33° of the second inclined surface, the inclination angle β=90° of the first inclined surface. The tooth thickness of broach from the bottom up diminishes gradually, the tooth's socket from top to bottom makes shallow gradually, has strengthened the water conservancy diversion effect, makes the broach better stretch into in the comb hair and to the resistance that the roller brush motion produced less simultaneously, and guaranteed to be shallower with the tooth's socket that scrapes dirty piece near, because here water pressure is minimum, the negative pressure is also minimum, so the tooth's socket is shallow, and dirt liquid or dirt remain the space is little, and dirt or dirt liquid can not produce a large amount and remain here. The bottom surface of the tooth groove is a cambered surface, the center of the cambered surface is positioned on the side where the roller brush is positioned, and by adopting the structure, the flow guiding effect is better, so that the sewage or dirt can run in the tooth groove more smoothly, and the accumulation probability is reduced.

As shown in fig. 4, the suspended section 52 of the dirt scraping member 5 abuts against the cleaning member 42 of the roller brush 4, the front tooth surface 616 of the comb teeth 61 abuts against the wetted part of the bristles, the tooth tip 618 of the comb teeth 61 is located in the front tooth surface 616 and forms a tangent line with a certain point of the periphery of the cleaning member 42 of the roller brush 4, so that the comb teeth 61 of the comb member 6 can extend into the bristles 41 of the cleaning member 42, the contact surface of the comb member 6 with the cleaning member 42 of the roller brush 4 is reasonable, the tooth tip 618 does not directly extend forward to the bristles of the roller brush and form line contact with the bristles, the probability that the friction caused by the tooth tip and the bristles are serious and even form obvious tooth marks is reduced, the comb teeth 61 of the comb member 6 are downwards combed 41 along the tangential direction or the direction parallel to the tangent line of the cleaning member 42 of the roller brush 4, the wound on the surface of the roller brush 4 and the dirt hidden at the root of the bristles 41 can be effectively scraped and stripped, meanwhile, the resistance of the roller brush is not increased, and the rotation resistance of the driving roller brush is greatly reduced, and the problem of the driving resistance of the roller brush is greatly is reduced.

When the dirt sucking fan works, the air flow passes through the dirt sucking opening to form a wind pressure area, the area between the part, above the dirt sucking opening, of the front surface of the carding piece 6 and the lower surface 54 of the dirt scraping piece 5 and the roller brush does not correspond to the dirt sucking opening, and the area is full of bristles, so that the air flow cannot pass through and reach, and a suction negative pressure area 500 is formed in the area. As shown in fig. 9, the scraping cleaning member 42 is extruded by the scraping member 5, under the negative pressure environment, the dirty liquid is scraped and then gathered to a certain extent in the suction negative pressure area between the lower part of the scraping member 5 and the front surface of the carding member 6, so that a larger water pressure is generated, the liquid is made to surge to the diversion section of the comb teeth, and is divided into a plurality of liquid streams by the diversion section of the comb teeth to enter between the diversion sections, so that the water pressure is further increased in the moment between the diversion sections of the comb teeth, therefore, under the action of the plurality of liquid streams with increased water pressure, the wind or the dirty stripped from the cleaning member by the comb teeth is washed, the liquid streams drive the dirty, the dirty and other wind materials to flow to the penetration section at the dirty suction opening through the area where the front tooth surface of the comb teeth contacts with the cleaning member line of the roller brush, thereby ensuring that the dirty wind materials cannot remain in the gaps of the comb teeth, not only solving the problem that the roller brush is wound, but also making the dirty liquid, dirty and other wind materials wind around the gaps between the comb teeth, so that the dirty liquid, dirty and the dirty wind and other wind can quickly flow to the gaps of the dirt suction opening, thereby improving the dirty suction effect. In this embodiment, the mounting section 51 is disposed above the central axis EF of the roller brush 4, a transition section 53 is further disposed between the mounting section 51 and the suspension section 52, and the suspension section 52 is disposed obliquely downward along the diameter direction of the roller brush 4 and is in contact with the cleaning member, so that the mounting section 51 and the suspension section 52 are smoothly connected by the transition section 53, and the fixing portion 63 of the carding member 6 is attached to the mounting section. The suspended section 52 is at least partially arranged above the comb teeth 61, the front end 521 of the suspended section 52 of the dirt scraping member 5 is located in front of the tooth tips 618 of the penetrating section 611, the tooth tips 618 are tangential to the cleaning member 42 of the roller brush 4, and a leeward region through which the air flow cannot pass is formed in the region between the partial lower surface 54 of the dirt scraping member 5, the partial front surface of the comb member 6 and the outer surface of the roller brush 4, and this region forms the suction negative pressure region 500. Since the comb teeth 61 and the flow guide grooves 614 extend up to the dirt scraping member 5, the front surface of the comb member 6 includes the front tooth surfaces 616 of the comb teeth 61 and the flow guide grooves 614, and thus, in this embodiment, the front tooth surfaces 616 of the comb teeth, the flow guide grooves 614, the lower surface 54 of the dirt scraping section 5 and the outer surface of the roller brush 4 form a suction negative pressure region. When the surface cleaning device cleans, the cleaning water tank supplies water to the roller brush or the surface to be cleaned, water enters the water supply port on the ground brush from the water distribution part and flows out to the roller brush through the water supply port, the roller brush is wetted, the roller brush rotates to clean the surface to be cleaned, the dirt suction fan is started, the ground scraping strip scoops dirt and the dirt liquid on the surface to be cleaned, under the influence of rotation of the roller brush, the gap between the ground scraping strip and the roller brush forms a dirt suction nozzle, the scooped dirt and the dirt liquid are sucked into the suction nozzle under the influence of rotation of the roller brush, and move towards the dirt suction port under the guiding action of the rear tooth surface arranged obliquely of the comb teeth, at the moment, a part of the dirt liquid and the dirt are absorbed by the cleaning piece and the brush hair on the roller brush or drive the roller brush to move upwards, the comb piece contacts with the roller brush, the tooth tips are tangential with the cleaning piece of the roller brush, the dirt and the hair on the cleaning piece is scraped by the brush, the dirt and the hair and the other windings on the cleaning piece are separated from the roller brush, then the front surface of the brush is continuously contacted with the front surface of the cleaning piece, and the front surface of the brush is completely contacted with the front surface of the scraping piece, and the front surface of the brush is completely contacted with the front surface of the cleaning piece is arranged, and the front surface of the scraping piece is completely contacted with the front surface of the cleaning piece is arranged, which is located on the front to be contacted with the front to the front surface of the cleaning piece, and is contacted with the front surface of the cleaning piece, and is contacted with the front surface and the front surface is contacted with the cleaning piece, therefore, the areas are leeward areas, the leeward areas form negative pressure areas of air flow, the lower surface 54 of the suspension section, the front tooth surfaces 616 of the comb teeth 61 and the gaps between the guide grooves 614 and the outer surfaces of the roller brushes form negative pressure areas of air flow suction, the dirt scraping members squeeze the cleaning members, under the negative pressure environment, dirt liquid is scraped off and then gathered to a certain degree in the negative pressure areas of suction between the lower part of the dirt scraping members and the front surfaces of the comb members, larger water pressure is generated, so that the dirt liquid is wrapped with the wound matters such as hair completely stripped by the dirt scraping members, the dirt is gushed into the areas where the guide sections of the comb teeth are located under the action of larger water pressure formed by gravity and the extrusion force of the dirt scraping members, and the guide sections of the comb teeth are divided into a plurality of liquid flows into the guide grooves between the guide sections, under the guide action of the guide sections of the comb teeth, the liquid flow wraps dirt, hair and other windings into the diversion trenches between the diversion sections, and as the diversion trenches form narrow pipes, the instantaneous water pressure in the diversion trenches is further increased, the flow speed is accelerated, so that the windings stripped from the cleaning piece by the comb teeth or dirt are washed down by the multi-strand liquid flow with increased water pressure, the windings such as dirt, stripped loose hair and the like near the diversion sections are washed down by the liquid flow, and move to the gaps of the penetrating sections of the comb teeth, under the action of the dirt absorbing fan, the gaps of two adjacent penetrating sections form slit effect areas at the dirt absorbing openings, so that the wind pressure of the instantaneous slit effect areas is increased, unbalanced air flow is generated at the dirt absorbing openings, the windings such as hair, dirt and dirt liquid are smoothly absorbed into the dirt absorbing openings under the action of the larger unbalanced air flow, and the dirt and dirt liquid on the surface to be cleaned are absorbed into the dirt absorbing openings, the dirt liquid, dirt and windings adhered on the polluted roller brush are scraped off and sucked into the dirt suction port, the roller brush continuously rotates, the surface to be cleaned is further cleaned, the surface cleaning device cleans the dirt, the dirt liquid, the hair and other windings on the surface to be cleaned, meanwhile, the roller brush is clean, the roller brush contacted with the surface to be cleaned each time is clean, secondary pollution is avoided, the comb teeth are matched with the dirt scraping piece, the effect of stripping the hair and other windings is good, the hair and other windings are prevented from winding on the roller brush, meanwhile, the suction effect of the hair and other windings is improved remarkably, the dirt suction efficiency is high, the overall cleaning effect of the surface cleaning device is greatly improved, and the cleaning efficiency is improved.

In this embodiment, the dirt absorbing fan and the battery pack are installed in a shell to form an independent power source system 12, the power source system 12 is detachably installed on the machine body 1, an air inlet duct and an air outlet duct are formed on the shell of the power source system 12 corresponding to the dirt absorbing fan, the air inlet duct is communicated with a dirt containing barrel on the machine body, the dirt containing barrel is detachably installed on the machine body, a limiting surface for limiting the barrel wall of the dirt containing barrel is arranged on the machine body, a gap is formed between the limiting surface and the dirt containing barrel, an air outlet is formed in the machine body, the air outlet duct is communicated with the interior of the machine body, air exhausted by the dirt absorbing fan is exhausted through the air outlet formed in the machine body, and the air outlet is communicated with the limiting surface and the dirt containing barrel to form a gap, so that air is exhausted from the gap of the two.

Of course, it will be appreciated that the dirt suction fan and the battery pack may also be disposed inside the body; the clear water tank can also be arranged on the ground brush and is positioned in the accommodating cavity; the bottom surface of the tooth groove can also be formed by inclined planes with low middle, front and rear sides and high sides; or the bottom surface of the tooth slot may be a curved surface protruding downward, as shown in fig. 10; or the bottom surface of the tooth groove is a cambered surface, the circle center of the cambered surface is positioned above the tooth groove on the side where the floor brush is positioned, as shown in fig. 11, and the lowest point of the bottom surface of the tooth groove is flush with the top surface of the dirt suction port; such a technical solution, which does not deviate from the inventive concept, is also within the scope of protection of the present utility model and is not exemplified here.

Embodiment two:

The difference between the present embodiment and the first embodiment is that the roller brush in the present embodiment is a single roller brush or a single roller brush, and the structure of the comb teeth is different.

As the surface cleaning apparatus of the present utility model, as shown in fig. 12 to 14, the roller brush 4 includes a hollow roller 43 and a cleaning member covering the outer surface of the roller 43, the cleaning member includes bristles 41 and a cleaning member 42, in this embodiment, a transition section 53 is further disposed between the mounting section 51 and the suspending section 52, the mounting section 51 is disposed above the central axis EF of the roller brush 4, the suspending section 52 is disposed coincident with the central axis EF of the roller brush, the connecting portion 62 of the carding member 6 is disposed in contact with the mounting section, the transition section 53 connects the mounting section 51 and the suspending section 52 smoothly, the suspending section 52 is disposed at least partially above the comb teeth 61, and the suspending section 52 is disposed above the central axis EF of the roller brush 4 and is disposed parallel to the central axis EF of the roller brush 4. As shown in fig. 14, the guide section between J1 and J2 is a part of the comb teeth, the part between J2 and J3 is a penetrating section of the comb teeth, the lower end of the connecting portion 62 is lower than the upper end of the dirt absorbing port 24 so that the comb teeth 61 at least partially cover the dirt absorbing port 24, the lower end of the connecting portion 62 between two adjacent guide sections 612 is provided with a guide groove 614, the penetrating section 611 is disposed at the lower part of the comb teeth 61, and the guide groove 614 does not extend to the front surface of the comb member, that is, the front surface of the comb member 6 is not provided with all of the comb teeth 61, but the connecting portion 62 of the comb member 6 extends forward above the comb teeth 61 and is attached to the suspended section 52 of the dirt scraping member 5, the comb teeth are connected with the suspended section 52 of the dirt scraping member 5 by the connecting portion 62, and the front side surface of the connecting portion 62 forms a guide surface for guiding the liquid flow downward, therefore, the front surface of the comb member 6 in this embodiment comprises a suction surface 614 formed by the front side surface of the connecting portion 62, the guide groove 614 forms a negative pressure region between the front surface of the suction surface of the comb member 6 and the front surface of the suction groove 614, and the front surface of the suction surface region 500 is formed by the suction surface of the suction surface region of the suction groove 614. As shown in fig. 14, the suction negative pressure area of the present embodiment is formed by the lower surface 54 of the suspended section 52, the drainage surface 621, the front tooth surface 616 of the comb teeth 61, and the gap between the groove bottom surface of the guide groove 614 and the outer surface of the roller brush. The liquid flow formed by the dirt liquid scraped by the scraping strip is guided by the guiding surface, dirt or/and windings stripped from the roller brush by the scraping strip are wrapped and clamped to be flushed to the comb teeth, then the dirt or/and windings are blown by the guiding groove, the air flow in the guiding area and the guiding groove is a back air area through which the air flow cannot pass, namely a suction negative pressure area is formed, therefore, the water pressure of the liquid flow in the guiding area is improved, a narrow pipe effect is generated when the liquid flow passes through a narrow area of the guiding groove, the water pressure is instantaneously increased, the dirt and/or windings are wrapped and clamped by the liquid flow to flow from the guiding groove of the guiding section, the dirt and/or/and windings are smoothly fed into the gaps of the penetrating section, a slit effect is formed between the gaps of the comb teeth corresponding to the dirt sucking opening, the slit effect area is formed between the gaps of the comb teeth corresponding to the dirt sucking opening, the air pressure of the slit effect area is increased under the action of the dirt sucking fan, the air speed is increased, the suction force is increased, the dirt or/and the windings are wrapped by the liquid flow to the slit effect area, and the dirt is sucked into the dirt sucking opening rapidly.

As shown in fig. 14, in this embodiment, the rear tooth surface 617 is disposed obliquely downward along the connection portion 62, where the angle between the rear tooth surface and the horizontal plane is θ, that is, the angle between the rear tooth surface and the horizontal plane is θ, which is 30 ° or less than or equal to θ or less than 35 °, and under the guiding action of the angle θ of the rear tooth surface, the dirt liquid and the dirt are easier and harder to move to the vicinity of the dirt absorbing port, and this angle exactly conforms to the angle formed by the dirt absorbing hose passing through the accommodating cavity from the dirt absorbing port to the rear portion of the accommodating cavity and being connected with the dirt absorbing pipe on the dirt accommodating barrel. In this embodiment, a=83°, θ=32°. In this embodiment, the tooth width b=1.5 mm of the comb teeth, the interval l=1 mm between two comb teeth, which ensures that the clearance between the penetrating segments of the comb teeth shielding the dirt absorbing mouth is reasonable, and also ensures the area of the slit effect area, and ensures that enough wind pressure can be generated at the position, so as to improve the suction force, the generated suction force is enough to be greater than the adhesive force of dirt or winding or dirt liquid, and the clamping force of the winding or larger particles clamped between the two comb teeth, thereby being more beneficial to the dirt entering the dirt absorbing mouth through the clearance of the comb teeth smoothly. The comb teeth are small in height h=1mm of the dirt absorbing opening, obvious tooth marks are not generated on the cleaning piece, movement resistance of the roller brush is small, the length of the comb teeth is enough to stretch into the bristles to process windings, the length of the dirt absorbing opening is small, therefore, the surface cleaning device is small in obstruction of absorbing larger dirt from the surface to be cleaned, larger garbage on the surface to be cleaned can be processed, a certain slit effect can be formed at the dirt absorbing opening, and cleaning suction effect of dirt or dirt liquid or windings scraped by the comb teeth and the dirt scraping piece is good.

Of course, it can be understood that a carding piece can be adopted, the bottom surface of the tooth groove is not higher than the top surface of the dirt sucking port, and as shown in fig. 15, the bottom surface of the tooth groove is a downward curved surface; or the carding piece includes fixed part, connecting portion and broach, the broach only contains runs through the section, does not set up the water conservancy diversion section, as shown in fig. 16, does not establish the guiding gutter on the connecting portion of course yet, and the front end of connecting portion stretches out forward, and its top surface is laminated with the unsettled section of dirt scraping piece, and the front end of the unsettled section of dirt scraping piece's front end protrusion connecting portion sets up, and the front surface of connecting portion forms the broach and scrapes the drainage district of dirt scraping piece, and the tooth's of broach tooth's tooth socket level sets up, and the groove bottom surface of tooth socket of broach is the plane, the tank bottom surface of tooth socket of broach and the last top surface parallel and level setting of dirt absorbing mouth. As long as the comb teeth partially shield the dirt absorbing mouth, and the gaps of the comb teeth can form a slit effect, the method plays a role in well treating the wound such as hair and the like, and can generate increased wind pressure to absorb the wound, the dirt liquid and the dirt into the dirt absorbing mouth well, the technical scheme for improving the dirt absorbing effect without departing from the concept of the utility model is within the protection scope of the utility model, and no one-to-one example is provided.

Other structures and beneficial effects of the embodiment are the same as those of the embodiment, and are not described in detail herein.

It will be readily appreciated by a person skilled in the art that the scope of the application is not limited to the preferred embodiments described above. The technical solutions in the above preferred embodiments can be split and combined by those skilled in the art without departing from the technical principles of the present application, and equivalent changes or substitutions can be made to related technical features, so any changes, equivalent substitutions, improvements, etc. made within the technical principles and/or technical concepts of the present application will fall within the protection scope of the present application.

Claims (10)

1. The utility model provides a high-efficient dirt-absorbing surface cleaning device, includes the scrubbing brush that has dirt absorbing mouth, with scrubbing brush articulated fuselage, dirt absorbing fan, be equipped with on the scrubbing brush be used for the cleaning to wait to clean the roller brush of clean surface and be used for cleaning up dirt scraping piece and the carding piece of roller brush, the roller brush is including cleaning piece and the roller that has the brush hair, dirt scraping piece and carding piece locate in proper order the top of dirt absorbing mouth, a serial communication port, be equipped with a plurality of broachs on the carding piece, the broach of carding piece is at least partly stretched into in the brush hair, the broach include run through the section and with the water conservancy diversion section, the broach downwardly extending and at least partly shelter from dirt absorbing mouth, and adjacent two gaps that run through the section correspond dirt absorbing mouth and form slit effect district.

2. The surface cleaning apparatus of claim 1, wherein the width of the comb teeth is b, the spacing between two adjacent comb teeth is L, wherein b > L, and the spacing L satisfies 0.7mm +.l < 1.5mm.

3. The surface cleaning apparatus of claim 1, wherein the height of the through section that shields the dirt pick-up opening is h, wherein 0.7 mm.ltoreq.h.ltoreq.3.5 mm.

4. The surface cleaning apparatus of claim 1 wherein the comb teeth are located at least partially below a central axis of the roller brush, and wherein front tooth surfaces of the comb teeth extend downwardly along an outer periphery of the cleaning member.

5. The surface cleaning apparatus of claim 1, wherein the dirt scraping member and the combing member each collide with the cleaning member, the front end of the dirt scraping member is located in front of the tooth tip, and gaps among the front surface of the combing member, the lower surface of the dirt scraping member and the outer surface of the roller brush form a suction negative pressure region.

6. The surface cleaning apparatus of claim 5, wherein a flow guide groove is disposed between two adjacent flow guide sections, the flow guide groove being disposed in correspondence with the gap of the through section.

7. The surface cleaning apparatus of claim 6 wherein the flow guide channel extends upwardly to a lower surface of the dirt scraper section, and wherein a gap between a portion of the lower surface of the dirt scraper, the flow guide channel, and the outer surface of the roller brush forms a suction negative pressure zone.

8. The surface cleaning apparatus of claim 6 wherein the through section is disposed below the teeth and the channels extend upwardly to the front surface of the comb, and wherein the gaps between the lower surface of the dirt scraper, the front surface of the comb, the channels and the outer surface of the roller brush form suction negative pressure areas.

9. The surface cleaning apparatus of claim 1 wherein the rear tooth surfaces of the comb teeth are disposed obliquely downward relative to a horizontal plane.

10. The surface cleaning apparatus of claim 1 wherein the teeth of the comb taper in thickness from bottom to top.