CN219763257U - Scraping strip for cleaning equipment and cleaning equipment with scraping strip - Google Patents

Abstract

The utility model provides a scraping strip for cleaning equipment and the cleaning equipment with the scraping strip. The scraping strip is used for cleaning elements (1) arranged on the outer wall of a rolling brush (10) rotating in a first direction (50) in the cleaning equipment. The scraping strip comprises a main body part (6), and a scraping part (7) and a comb tooth part (8) which extend from one end (80) of the main body part (6), wherein the comb tooth part (8) and the scraping part (7) are sequentially arranged along the first direction (50), the tail ends of the scraping part (7) and the comb tooth part (8) are contacted with the cleaning piece (1), and an included angle (400) between the directions of the scraping part (7) and the comb tooth part (8) from the one end (80) of the main body part (6) to the tail ends of the comb tooth part are acute angles.

Description

Scraping strip for cleaning equipment and cleaning equipment with scraping strip

Technical Field

The utility model relates to the field of cleaning equipment, in particular to a scraping strip for cleaning equipment and the cleaning equipment with the scraping strip.

Background

Many current cleaners are provided with a roller brush. For example, the conventional cleaning devices such as floor cleaners and floor cleaners can use a roller brush when cleaning the floor, and the rotation of the roller brush can effectively remove stubborn dirt and impurities on the floor. In addition, devices such as car washes, household cleaners, and the like may also employ a roller brush to clean surfaces or to suck dust, and the like. Such devices scrape off dirt and impurities by a roller brush and carry them away from the surface of the object when cleaning the surface of the object. However, in the cleaning process, on one hand, the rolling brush is easy to roll hair and the like on the roller in the use process, and the roller is more tightly rotated along with the rotation of the roller, so that the cleaning becomes difficult; on the other hand, the rolling brush may cause a snagging and a weakening of the cleaning effect due to the winding of minute foreign matters such as hair, and may even cause damage to the apparatus.

In order to solve the problem of entanglement of hair and the like, some cleaning devices are equipped with a scraping bar for scraping off the trash such as hair strands on the roller brush.

For example, fig. 1 shows a diagram of a conventional cleaning apparatus for solving the problem of hair entanglement on a roller brush. Wherein the roller brush 10 rotates in a counter-clockwise direction, and dirt hair on the cleaning member 1 (e.g., a cloth scraper) is pressed into the air duct 30 by the comb teeth part 8, thereby entering a dirt collector of the cleaning apparatus. However, in order to ensure the sealing of the air duct 30, the comb teeth 8, i.e., the side surfaces and the bottom surfaces of the triangular-like teeth in fig. 2, are completely in contact with the cleaning member 1, and the load of the floor brush motor greatly affects the life and the endurance time of the motor due to the large contact area. The scraping strip 20 promotes the cleaning effect of hair through a generally downward comb structure, and when the roller brush rotates, the comb will scrape the hair on the roller brush, and simultaneously scrape the roller cleaning member through the comb structure. However, the comb structure has limited hair cleaning effect, the scraped hair can be wound on the comb part 8 to form dirt accumulation, and meanwhile, the intermittent arrangement of the comb leads to uneven scraping of the rag, uneven water content and poor ground cleaning effect. The comb teeth 8 scratch the cleaning member 1 to form a tooth pattern, which affects the appearance. In addition, a dead space 600 is formed at the side of the comb part 8 near the air duct 30, where wind forms turbulence, which is disadvantageous in that hair wound around the comb is sucked into the machine, and the hair is wound around the comb, resulting in poor cleaning.

CN216535168U discloses another floor cleaning device, as shown in fig. 3, a scraping strip (i.e. comb teeth part 8) and a scraping strip 7 are arranged on the inner wall of the installation groove, the scraping strip 8 is used for scraping away big garbage or hair, and the scraped big garbage or hair can be sucked away by a dust collection channel, i.e. air duct 30; the wiper strip 7 is used for sucking away the water on the rolling brush by the dust collection channel 30 after the water is scraped off, so that the situation that the rolling brush 10 of the floor brush assembly is blocked by large garbage or silk hair or is wound on the rolling brush 10 is avoided. However, in this embodiment, since the wiper strip 8 and the wiper strip 7 are disposed on both sides of the main body 6 in parallel, a dead space is formed between the wiper strip 8 and the wiper strip 7, and water scraped off from the roller brush 10 by the wiper strip 7 is easily accumulated in the dead space, which is disadvantageous for sucking it away; in addition, the scraping strip 8 is arranged basically perpendicular to the tangential plane of the rolling brush 10, so that the resistance is high, and the load of the ground brush motor is high, thereby influencing the service life and the endurance time of the motor.

Disclosure of Invention

This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

One of the purposes of the utility model is to provide a scraping strip for a cleaning device and the cleaning device with the scraping strip, wherein the scraping strip comprises a main body part, a water scraping part and a comb tooth part, the main body part, the water scraping part and the comb tooth part are connected at one point, when a rolling brush rotates, dirt such as hair on the surface of the rolling brush is scraped through the comb tooth part, then the water on the surface of the rolling brush is scraped through the water scraping part, and meanwhile, a cleaning piece on the surface of the rolling brush is tidied. The comb teeth may be substantially tangential to the surface of the roller brush to scrape off dirt on the roller brush with as little resistance as possible. In addition, the included angle between the comb tooth part and the upper end face of the air duct can be an obtuse angle, so that the turbulence problem caused by dead angle formation between the comb tooth part and the upper end face of the air duct is avoided.

According to an aspect of the present utility model, there is provided a wiper strip for a cleaning apparatus for cleaning a cleaning member provided on an outer wall of a roller brush rotating in a first direction in the cleaning apparatus, wherein the wiper strip includes a main body portion, and a wiper portion and a comb tooth portion extending from one end of the main body portion, respectively, the comb tooth portion and the wiper portion being arranged in order in the first direction, distal ends of the wiper portion and the comb tooth portion each being in contact with the cleaning member, and an angle between directions in which the wiper portion and the comb tooth portion extend from a connection end with the main body portion to the respective distal ends, respectively, is an acute angle. The water scraping part and the comb tooth part which extend from the main body part are arranged, so that the water scraping part and the comb tooth part are favorable for adapting to the shape of the rolling brush, dirt such as hair and the like on the cleaning piece can be scraped off through the comb tooth part when the rolling brush rotates, water on the cleaning piece is scraped off through the water scraping part, hair winding on the rolling brush is avoided, and the cleaning effect and the water scraping effect on the cleaning piece are improved.

In one embodiment of the utility model, the wiper portion is a wiper strip of plate-like structure. The plate-shaped structure of the wiper part ensures that the wiper part is in complete contact with the cleaning piece, thereby ensuring the sealing of the air duct, forming vacuum to ensure the suction force of the air duct, and simultaneously finishing the cleaning piece cleaned by the comb teeth part to be smooth.

In one embodiment of the utility model, the end of the comb-tooth part is provided with a plurality of scraping teeth. In this way, the plurality of scraping teeth of the comb tooth part can scrape the hair on the cleaning member better, and the cleaning member is cleaned before the water scraping part, so that the hair is prevented from being wound.

In one embodiment of the present utility model, the tips of the wiper portion and the comb tooth portion are respectively brought into contact with the cleaning member to respectively form interference with the cleaning member, and the amount of interference of the wiper portion with the cleaning member is larger than the amount of interference of the comb tooth portion with the cleaning member. In this way, the resistance between the comb teeth portion and the cleaning member can be reduced.

In a further embodiment of the utility model, the length of the wiper portion extending from one end of the body portion is greater than 0.5mm. Through this mode for the wiper portion fully contacts with the cleaning member, thereby reaches better clean effect, guarantees the sealed of wind channel simultaneously, forms the suction in vacuum assurance wind channel.

In one embodiment of the present utility model, an angle between a direction in which the other end of the main body portion extends and a direction in which the comb tooth portion extends from a connection end with the main body portion to a tip end of the comb tooth portion is an obtuse angle. The structure is simple, the cost is low, and the shape of the inlet end part of the air duct is matched, so that the air duct is conveniently arranged above the air duct.

In one embodiment of the utility model, the extending direction of the comb teeth part and the included angle between the bottom end of the comb teeth part and the connecting line direction of the circle center of the rolling brush are in the range of 70 degrees to 110 degrees. By arranging the comb teeth substantially tangential to the surface of the roller brush, dirt on the roller brush is scraped off with as little resistance as possible.

In a further embodiment of the utility model, the angle between the extension direction of the comb teeth and the direction of the connecting line between the bottom end of the comb teeth and the center of the circle of the rolling brush is 100 degrees. In this way, a better cleaning of the cleaning element is achieved with as little interference as possible between the comb teeth and the cleaning element.

In one embodiment of the utility model, the body portion, the wiper portion and the comb teeth portion are integrally formed. The structure is simple and practical to manufacture, and the cost is reduced.

In another aspect of the present utility model, there is provided a cleaning apparatus comprising a roller brush rotating in a first direction, a dirt-absorbing duct, and a wiper strip according to any one of the above embodiments, wherein the duct and the wiper strip are sequentially arranged in the first direction, a comb portion in the wiper strip extends beyond an upper end face of the duct, and an included angle between the comb portion and the upper end face of the duct is an obtuse angle. According to the cleaning device, the included angle between the comb tooth part and the upper end face of the air duct is an obtuse angle, so that the turbulence problem caused by dead angles between the comb tooth part and the air duct can be eliminated, the hair wound on the comb tooth part is better sucked into the cleaning device, and the cleaning effect is better.

These and other features and advantages will become apparent upon reading the following detailed description and upon reference to the associated drawings. It is to be understood that both the foregoing general description and the following detailed description are explanatory only and are not restrictive of aspects as claimed.

Drawings

So that the manner in which the above recited features of the present utility model can be understood in detail, a more particular description of the utility model, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only certain typical aspects of this utility model and are therefore not to be considered limiting of its scope, for the description may admit to other equally effective aspects.

Fig. 1 shows a schematic view of a cleaning device of the prior art.

Fig. 2 shows a schematic view of a prior art wiper strip.

Fig. 3 shows a schematic view of another prior art cleaning device.

Fig. 4 shows a cross-sectional view of a wiper strip for a cleaning device according to one embodiment of the utility model.

Fig. 5 shows a side view of a wiper strip for a cleaning device according to one embodiment of the utility model.

Fig. 6 shows a schematic view of a wiper strip for a cleaning device according to one embodiment of the utility model.

Fig. 7 shows a cross-sectional view of a cleaning device according to an embodiment of the utility model.

Reference numerals illustrate:

1 a cleaning member; 6 a main body part; 7 a wiper part; 8 comb teeth parts; 9 scraping teeth

10, rolling brush; 20 scraping strips; 30 air channels

50 first direction of rotation of the roller brush

80 one end of the body portion; the other end of the 90 main body part

100 the angle between the extending direction of the wiper part to the rolling brush and the extending direction of the main body part from the connecting end of the wiper part to the connecting end of the comb tooth part

400 included angles between the directions in which the wiper portion and the comb tooth portion extend from the connection end to the main body portion to the respective distal ends

500 the main body portion extends from the connecting end with the comb tooth portion to the other end of the main body portion and the comb tooth portion extends from the connecting end with the main body portion to the tip end of the comb tooth portion

600 included angle between comb tooth part and upper end face of air duct

700 extending direction of comb tooth part and included angle between the bottom end of comb tooth part and connecting line direction of circle center of rolling brush

900 length of wiper portion extending from connection end with main body portion

Detailed Description

Embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While the utility model is susceptible of embodiment in the drawings, it is to be understood that the utility model may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided to provide a more thorough and complete understanding of the utility model. It should be understood that the drawings and embodiments of the utility model are for illustration purposes only and are not intended to limit the scope of the present utility model.

In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like are merely used for convenience in describing the present utility model and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The "vertical" is not strictly vertical but is within the allowable error range. "parallel" is not strictly parallel but is within the tolerance of the error.

The directional terms appearing in the following description are those directions shown in the drawings and do not limit the specific structure of the utility model. In the description of the present utility model, it should also be noted that, 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 directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present utility model, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Aiming at the defects of the prior art, the utility model provides a scraping strip structure which is beneficial to hair cleaning, and the structure comprises a main body part, a water scraping part and comb teeth parts, wherein the water scraping part and the comb teeth parts are arranged at the front end of the main body part, an acute angle is formed between the water scraping part and the comb teeth parts, the water scraping part is used for scraping water of a cleaning piece, and the comb teeth parts are used for cleaning dirt such as hair and the like on the cleaning piece. The structure not only ensures the water scraping effect, but also improves the cleaning effect on dirt such as hair and the like, simultaneously reduces the load of the ground brush motor, and improves the attractiveness of the rolling brush.

Details of various embodiments of the wiper strip for a cleaning device of the present utility model are described below in conjunction with fig. 4-6, respectively. The scraper 20 is used for cleaning the cleaning elements 1 provided on the outer wall of the roller brush 10 in the cleaning device. When the cleaning device is in operation, the roller brush 10 rotates in a first direction 50 (e.g. anticlockwise as shown in figure 4) and the cleaning members 1 clean dirt from the surface over which they pass as the roller brush 10 rotates. As a non-limiting example, the cleaning member 1 may be, for example, a brush cloth wrapped around the outer wall of the roll brush 10 for scrubbing dirt. The wiper strip 20 is provided on one side of the roller brush 10, and the wiper strip 20 includes a main body portion 6, and a wiper portion 7 and a comb portion 8 extending from one end 80 of the main body portion 6, respectively. As shown in the side view of fig. 5, the main body 6, the wiper 7, and the comb teeth 8 are connected at one point, and have a Y-shaped structure.

As shown in fig. 4, the comb-tooth parts 8 and the wiper parts 7 are arranged in order in the first direction 50, i.e., the wiper parts 7 are disposed downstream of the comb-tooth parts 8 in the first direction 50 in which the roller brush 10 rotates, and the tips of both the wiper parts 7 and the comb-tooth parts 8 are in contact with the cleaning member 1. As an example, as shown in fig. 4, in the case where the roll brush 10 rotates in the counterclockwise direction 50, the wiper portion 7 is provided above the comb tooth portion 8. With this arrangement, after the floor surface is cleaned by the roller brush 10, the cleaning member 1 with dirt such as hair is rotated upward along with the roller brush 10, the comb teeth 8 comb the cleaning member 1, dirt such as hair on the cleaning member 1 is combed down, then the cleaning member 1 continues to rotate upward, the wiper 7 cleans it again, and dirt and water on the cleaning member 1 are scraped down. The mode of scraping dirt such as hair and then wiping is adopted, so that the hair on the rolling brush 10 is effectively prevented from winding, the cleaning effect and the wiping effect on the cleaning piece 1 are improved, and the scheme of the utility model is simple in structure and low in cost.

As shown in fig. 5, the included angle 400 between the wiper portion 7 and the comb tooth portion 8 in the direction extending from the one end 80 of the main body portion 6 to the distal end thereof is an acute angle. As shown in fig. 4, in a side view, the direction in which the wiper portion 7 extends from the connection end with the main body portion 6 toward the tip end thereof is substantially perpendicular to the tangential plane of the roll brush 10, and the direction in which the comb tooth portion 8 extends from the connection end with the main body portion 6 toward the tip end thereof is substantially coincident with the tangential plane of the roll brush 10. It will be appreciated that the distal end of the wiper portion 7 itself may be horizontally lower relative to its connection end with the main body portion 6 so that the wiper portion 7 generates a greater pressing force against the cleaning member 1 for better cleaning. Similarly, the end of the comb teeth part 8 itself may be more biased toward the center of the roll brush 10 with respect to the connection end thereof with the main body part 6, so that the comb teeth part 8 generates a larger pressing force against the cleaning member 1, resulting in a better cleaning effect. Thus, only the angle 400 between the directions in which the wiper portion 7 and the comb tooth portion 8 extend from one end of the main body portion 6 to the respective distal ends is set to be smaller than 90 degrees, and the main body portion 6, the wiper portion 7 and the comb tooth portion 8 are set to be in a "Y" shaped structure, the wiper portion 7 and the comb tooth portion 8 are extending branches of the main body portion 6, so that the wiper portion 7 and the comb tooth portion 8 both contact the cleaning element 1, and the comb tooth portion 8 is facilitated to clean hair.

As a non-limiting example, the main body 6, the wiper portion 7 and the comb portion 8 may be integrally formed, and the wiper portion 7 and the comb portion 8 are two branches extending from one end 80 of the main body 6, so that the wiper strip 20 may be manufactured at a reduced cost, and is simple and practical. It will be appreciated that the wiper strip 20 may be manufactured, for example, by separately manufacturing and then assembling the individual components, as desired.

According to one embodiment of the present utility model, as shown in fig. 6, the wiper portion 7 is a wiper strip of a plate-like structure. This structure makes the portion of scraping 7 keep complete contact with cleaning member 1, guarantees the sealing of wind channel 30, forms the suction in vacuum assurance wind channel 30, and the portion of scraping 7 still can scrape the dirt and the unnecessary moisture that remain in the cleaning member 1 simultaneously, and the rivers of scraping are inhaled inside wind channel 30 by the suction, and rivers and wind can form the impact to hair etc. that comb portion 8 scraped for the hair etc. that is scraped by comb portion 8 is more easily inhaled into the host computer along wind channel 30. In addition, since the wiper portion 7 is a wiper strip of a continuous plate-like structure, not a tooth-like distribution like triangular comb teeth, no pattern is generated in wiping of the cleaning material 1, and the cleaning material 1 cleaned by the comb teeth portion 8 can be finished to be flat.

According to one embodiment of the utility model, the end of the comb part 8 is provided with a plurality of scraping teeth 9. For example, the plurality of scraping teeth 9 may be arranged in a row along the width of the comb teeth portion 8 in contact with the cleaning member 1. As shown in fig. 6, the comb-tooth part 8 includes a plurality of triangular scraping teeth 9 having sharp corners facing downward for scraping dirt such as hair on the cleaning member 1, thereby cleaning the cleaning member 1 before the wiper part 7 and avoiding entanglement of hair. It will be appreciated that the comb teeth 8 may be designed in other shapes to scrape dirt from the cleaning member 1.

According to an embodiment of the present utility model, the tips of the wiper portion 7 and the comb tooth portion 8 are respectively brought into contact with the cleaning member 1 to respectively form interference with the cleaning member 1, and the amount of interference of the wiper portion 7 with the cleaning member 1 is larger than the amount of interference of the comb tooth portion 8 with the cleaning member 1. As shown in fig. 4, the wiper portion 7 protrudes into the cleaning member 1 by a larger distance than the comb tooth portion 8, so that the wiper portion 7 and the cleaning member 1 form an interference amount larger than the comb tooth portion 8 and the cleaning member 1. With this arrangement, the resistance between the comb teeth part 8 and the cleaning member 1 can be reduced.

According to one embodiment of the utility model, the length 900 of the wiper portion 7 extending from the end 80 of the main body portion 6 may be greater than 0.5mm. Experiments show that the length 900 of the wiper portion 7 protruding out of the comb teeth portion 8 needs to be larger than 0.5mm in order to achieve a good hair cleaning effect. As shown in fig. 5, the arrangement can make the wiper 7 fully contact with the cleaning member 1, and scrape the dirt not scraped by the comb teeth 8 and the excessive water from the cleaning member 1, so as to achieve a better cleaning effect, ensure the sealing of the air duct, and form vacuum to ensure the suction force of the air duct.

According to one embodiment of the present utility model, the angle 500 between the direction in which the main body portion 6 extends from the connection end 80 with the comb tooth portion 8 toward the other end 90 of the main body portion 6 and the direction in which the comb tooth portion 8 extends from the connection end 80 with the main body portion 6 toward the tip end of the comb tooth portion 8 is an obtuse angle. As a non-limiting example, the included angle 500 may be set to about 150 °, for example, but it will be appreciated that the included angle 500 may be set to other degrees greater than 90 ° depending on the particular installation environment. The structure is simple, the cost is low, and the shape of the inlet end part of the air duct is matched, so that the air duct is conveniently arranged above the air duct.

According to one embodiment of the present utility model, the extending direction of the comb tooth part 8 and the included angle 700 with respect to the direction of the line connecting the bottom end of the comb tooth part 8 and the center of the circle of the roll brush 10 are in the range of 70 degrees to 110 degrees, as shown in fig. 4. By arranging the comb teeth 8 extending downwards from one end of the body 6 substantially tangential to the surface of the roller brush 10, for example at an angle of between 90±20 degrees, dirt on the roller brush is scraped off with as little resistance as possible.

According to an embodiment of the present utility model, the extending direction of the comb tooth part 8 and the included angle 700 with respect to the line direction of the bottom end of the comb tooth part 8 and the center of the circle of the roll brush 10 may be set to about 100 degrees. In this way, a better cleaning effect of the cleaning element is achieved with as little interference as possible between the comb teeth 8 and the cleaning element 1.

Fig. 7 is a schematic view of a cleaning apparatus according to one embodiment of the utility model. It should be noted that the description of the hand-held cleaning device in fig. 7 is merely for convenience of description, and those skilled in the art will understand that the structure and improvement of the present utility model are not only applicable to the hand-held cleaning device, but also applicable to other types of cleaning devices, such as a floor cleaning machine, a cleaning robot, etc.

The chassis of the cleaning device may be equipped with a roller brush 10 for mopping the floor and a dust suction port communicating with the air duct 30. The mopping function is typically wet cleaning, i.e., cleaning liquid is applied to the cleaning members 1 provided on the outer wall of the roll brush 10 to wet them during cleaning, thereby completing mopping. It should be noted that the present utility model mainly relates to cleaning of the roller brush 10, and thus, the cleaning apparatus may have only a floor mopping (sometimes also referred to as "floor washing") function and corresponding components. It will be appreciated that the cleaning device may also have other functional components (e.g. be equipped with an edge brush for a sweeping function, etc.) as is practical.

With continued reference to fig. 7, in operation of the cleaning apparatus, the roller brush 10 rotates in a first direction 50, such as counterclockwise as shown in fig. 7. The dirt-sucking duct 30 and the scraping strip 20 are arranged in sequence along the first direction 50, and in combination with fig. 4, the comb teeth 8 in the scraping strip 20 extend beyond the upper end face of the duct 30. For example, the scraping bar 20 may be disposed on a rotating track after the rolling brush 10 scrubs the ground, and the scraping bar 20 is disposed above the air duct 30 so as to directly suck the scraped dirt through the air duct 30.

The specific workflow is as follows: the wet rolling brush 10 wipes dirt on the floor by rolling on the floor, and the dirt adheres to the cleaning member 1 on the outer wall of the rolling brush 10 along with the rotation of the rolling brush 10. When the roller brush 10 rotates counterclockwise and upward after wiping the floor, the scraping strip 20 arranged on the right side of the roller brush 10 presses the cleaning piece 1 on the outer wall of the roller brush 10, the comb teeth part 8 of the scraping strip 20 firstly comb down dirt such as hair on the cleaning piece 1, and then the scraping part 7 scrapes down the residual sewage on the cleaning piece 1. During this cleaning, the cleaning device can continuously suck dirt on the roller brush 10 through the air duct 30 under the wiper strip 20, including dirt such as hair and the like combed by the suction comb teeth part 8, and dirt scraped by the wiper part 7.

With continued reference to fig. 4 and 7, the included angle 600 between the comb teeth 8 of the scraping strip 20 and the upper end surface of the air duct 30 below the scraping strip 20 can be an obtuse angle, and the arrangement can eliminate turbulence caused by dead angles between the comb teeth and the air duct 30, so that the hair wound on the comb teeth can be sucked into the machine better, and the cleaning effect is better. Conversely, if the angle between the comb teeth 8 and the upper end surface of the air duct 30 is small, for example, a right angle or an acute angle (for example, the angle 600 shown in fig. 1), a dead angle is formed at the side of the comb teeth 8 near the air duct 30, wind may form turbulence therein, and the hair wound around the comb teeth 2 is not easily sucked into the machine, and the hair may be wound around the comb teeth 8, resulting in poor cleaning.

The scraper bar for a cleaning device and the cleaning device with the same of the utility model are described above, and compared with the solutions in the prior art, the utility model has at least the following advantages: the main body part at the rear end of the scraping strip is provided with a water scraping part and a comb tooth part in a forward extending mode, meanwhile, the inclination angle of the comb tooth part is adjusted, only the forefront end of the comb tooth part, namely the foremost end of the triangle, is contacted with the cleaning piece, and the resistance of the comb tooth part to the rolling brush is reduced, so that the load of the floor brush motor is reduced; meanwhile, the included angle between the comb tooth part and the upper end face of the air duct is set to be an obtuse angle, so that dirt absorption of the air duct is smoother; the convex water scraping part extends into the cleaning piece in a continuous platy structure, so that the sealing of the air duct is ensured, and the suction force of the air duct is ensured by forming vacuum; meanwhile, the water scraping part also scrapes out redundant water in the cleaning piece, the scraped water flow is sucked into the air duct by suction, and the water flow and the wind can form impact on dirt such as hair scraped by the comb tooth part, so that the dirt scraped by the comb tooth part is more easily sucked into the host along the air duct.

What has been described above includes examples of aspects of the claimed subject matter. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the claimed subject matter, but one of ordinary skill in the art may recognize that many further combinations and permutations of the claimed subject matter are possible. Accordingly, the inventive subject matter is intended to embrace all such alterations, modifications and variations that fall within the spirit and scope of the appended claims.

Claims (10)

1. A scraper bar for a cleaning device for cleaning a cleaning element (1) provided on an outer wall of a roller brush (10) rotating in a first direction (50) in the cleaning device, characterized in that:

the scraping strip comprises a main body part (6), and a scraping part (7) and a comb tooth part (8) which extend from one end (80) of the main body part (6), wherein the comb tooth part (8) and the scraping part (7) are sequentially arranged along the first direction (50), the tail ends of the scraping part (7) and the comb tooth part (8) are contacted with the cleaning piece (1), and an included angle (400) between the directions of the scraping part (7) and the comb tooth part (8) from the one end (80) of the main body part (6) to the tail ends of the comb tooth part are acute angles.

2. A wiper strip for a cleaning device according to claim 1, characterized in that the wiper portion (7) is a wiper strip of plate-like structure.

3. A scraper bar for a cleaning device according to claim 1 or 2, characterized in that the end of the comb-tooth part (8) is provided with a plurality of scraper teeth (9).

4. A wiper strip for a cleaning device according to claim 1 or 2, characterized in that the tips of the wiper portion (7) and the comb-tooth portion (8) are in contact with the cleaning element (1) respectively so as to form interference with the cleaning element (1), respectively, the amount of interference of the wiper portion (7) with the cleaning element (1) being greater than the amount of interference of the comb-tooth portion (8) with the cleaning element (1).

5. A wiper strip for a cleaning device according to claim 4, characterized in that the length (900) of the wiper portion (7) extending from the one end (80) of the main body portion (6) is greater than 0.5mm.

6. A scraper bar for a cleaning device according to claim 1 or 2, characterized in that the angle (500) between the direction in which the other end (90) of the main body part (6) extends and the direction in which the comb-teeth part (8) extends from the one end (80) of the main body part (6) to the tip of the comb-teeth part (8) is an obtuse angle.

7. A scraper bar for a cleaning device according to claim 1 or 2, characterized in that the extension direction of the comb teeth (8) and the angle (700) to the direction of the line connecting the bottom end of the comb teeth (8) and the centre of the roll brush (10) are in the range of 70 degrees to 110 degrees.

8. A scraper bar for a cleaning device according to claim 7, characterized in that the extension direction of the comb teeth part (8) and the angle (700) to the direction of the line connecting the bottom end of the comb teeth part (8) and the centre of the circle of the roller brush (10) are 100 degrees.

9. A wiper strip for a cleaning device according to claim 1 or 2, characterized in that the main body part (6), the wiper part (7) and the comb part (8) are integrally formed.

10. A cleaning device, characterized in that the cleaning device comprises a roller brush (10) rotating in a first direction (50), a dirt-absorbing air channel (30), and a scraper bar according to any one of claims 1 to 9, wherein the air channel (30) and the scraper bar are arranged sequentially in the first direction (50), the comb teeth (8) in the scraper bar extend beyond the upper end face of the air channel (30), and the angle (600) between the comb teeth (8) and the upper end face of the air channel (30) is an obtuse angle.