DE102022200220A1 - cleaning head and cleaning device - Google Patents

Abstract

A cleaning head and cleaning device are disclosed. The cleaning head comprises a body and a brush roll (120), the body having a chamber (111) adapted to receive the brush roll, the brush roll (120) being rotatable or movable within the chamber (111) relative to the body wherein the chamber (111) comprises an air inlet (112) and an air outlet (113) arranged opposite to each other, the cleaning head further comprising an air duct (114) connected via the air outlet (113) to the chamber ( 111) (120), the chamber and air passage (114) being narrowed at the air outlet (113) to form a narrow transition section (150). According to the invention, the cleaning effect and cleaning efficiency of the cleaning device can be improved, in particular, the cleaning ability of hair on surfaces can be improved, and the cleaning device itself is easy to maintain. Substantially no hair can be wound onto the brush roll (120), eliminating the need for manual cleaning by the user.

Description

FIELD OF THE INVENTION

The invention relates to the technical field of household appliances, specifically a cleaning head and a cleaning device.

STATE OF THE ART

With the improvement of residents' living standards, people's requirements for the cleanliness of the home and office environment are becoming more and more stringent. For example, when pet hair and human hair are attached to people, bedding or sofas, such hair attached to the surface of the fabric must be removed, otherwise it will affect the cleanliness and aesthetics of the home and office environment. However, it is difficult to remove hair stuck to the surface of materials such as braids, textiles and carpets.

The cleaning effect of existing vacuum cleaners and brush heads is not satisfactory for hair that is stuck to the surface of the fabric. Either the cleaning power is not great enough to achieve complete removal, or the cleaning power is too great causing damage to the fabric. In addition, when hair is removed with an existing vacuum cleaner, most of the hair piles up and wraps around the brush head, requiring the user to manually clean the brush head periodically, greatly affecting the user experience.

OBJECT OF THE INVENTION

It is an object of the embodiments of the present invention to provide an improved cleaning head and cleaning device.

According to the present invention, the object is achieved by a cleaning head comprising a body and a brush roll, the body having a chamber adapted to receive the brush roll, the brush roll being rotatable or movable within the chamber relative to the body , wherein the chamber comprises an air inlet and an air outlet which are arranged opposite to each other, wherein the cleaning head further comprises an air duct which is connected to the chamber via the air outlet, wherein the chamber and the air duct are restricted at the air outlet by a to form a narrow transition section. With the solution of the present embodiment, the cleaning effect and the cleaning efficiency of the cleaning device can be improved, in particular, the cleaning ability of the hair can be improved, and the cleaning device itself is easy to maintain. Essentially no hair is tangled on the brush roll, eliminating the need for manual cleaning by the user. Specifically, the pressure of the gas flowing from the chamber into the air duct increases significantly when it flows through the narrow and long transition section, so when the brush roller with the hair moves close to the air outlet, most of the Amount of intake air acts on the brush roll to suck all hair into the air duct. As a result, hair that is wrapped around the brush roll during the operation of the cleaning head is automatically removed by the transition section, thereby avoiding hair remaining on the surface of the brush roll, thereby eliminating the need for manual cleaning by the user.

According to the invention, it is provided that the chamber, the transition section and the air duct are formed in the shape of an 8 on a plane running perpendicularly to the axial direction of the brush roller. Thus, a narrow transition section is arranged as a neck between the upper and lower cavities, which are large-sized, so that the pressure of the gas at the air outlet becomes significantly larger, thereby ensuring that hair can be successfully sucked into the air duct when the brush roll moves near the air outlet.

According to the invention it is provided that the cross-sectional area of the transition section is smaller than the cross-sectional area of the chamber and the cross-sectional area of the air duct, the cross-sectional area being an area which is directed perpendicularly to a direction pointing from the chamber in the direction of the air duct. Thus, by changing the size of the cross-sectional area, the pressure of the gas changes significantly as the gas flows from the chamber with a larger area to the air outlet with a smaller area, ensuring that hair can be successfully sucked into the air duct when moves the brushroll near the air outlet.

According to the invention, a rounded and smooth transition is provided at a connection point between the chamber and the transition section and/or that a rounded and smooth transition is provided at a connection point between the air duct and the transition section. On the one hand, the rounded and smooth transition ensures good aesthetics and ease of manufacture. On the other hand, thus also within the cleaning head will avoid inaccessible places where hair accumulates.

According to the invention, it is provided that the transition section contains a separating plate for separating the chamber and the air duct, the air outlet being formed on the separating plate. As a result, the presence of a partition plate allows the air duct and the chamber to be connected to each other only through the air outlet. A narrow transition area is formed between the chamber and the air passage by making the opening of the air outlet formed on the partition plate smaller than the cross-sectional area of the air passage and the cross-sectional area of the chamber.

According to the invention, the ratio between the width of the air outlet and the width of the chamber is in the range of 1:4 to 1:8, with the width direction, the axial direction of the brush roller and the flow direction of the gas running perpendicular to one another. Thus, by judiciously designing the size ratio of the air outlet to the chamber, the gas pressure changes significantly as the gas flows from the spacious chamber to the narrower air outlet, ensuring hair is successfully sucked into the air duct when the brushroll gets close of the air outlet moves. The flow direction of the gas refers to the flow direction of the gas at the air outlet.

According to the invention, the width of the air duct is greater than the width of the air outlet, with the width direction, the axial direction of the brush roller and the flow direction of the gas running perpendicular to one another. The air duct is spaciously sized, which is beneficial to prevent hair sucked into the air outlet from blocking the air duct, thus ensuring the cleaning head can efficiently and continuously clean hair on the surface of the fabric.

According to the present invention, the air outlet extends substantially along the axial direction of the brush roll to ensure that hair wound in each portion of the brush roll can be sucked into the air outlet successfully.

According to the invention, the cleaning head also comprises a handle section, the extension direction of which runs essentially parallel to the axial direction of the brush roller. Thus, when using the cleaning head, an existing forward and backward movement along the direction of extension of the grip portion is converted into left and right movement, making the use of the cleaning head more ergonomic and user operation more labor-saving and convenient.

According to the invention, the air inlet has a width of 14 to 20 mm, with the width direction, the axial direction of the brush roller and the flow direction of the gas running perpendicular to one another. The width of the air inlet should not be too large to prevent the fabric from being sucked in during cleaning. The width of the air inlet should not be too narrow, otherwise interference from the moving brush roll is easy to occur, thus affecting the cleaning efficiency and damaging the brush roll. Thus, the contact portion between the body and the surface of the object to be cleaned adopts a unique semi-closed and semi-open design, and the width of the air inlet is reasonably adjusted according to the rotation radius of the brush roller during movement, which not only can effectively pick up hair, but also avoid it The cleaned tissue can be sucked into the cleaning head too much and the brush roller can no longer rotate or the object to be cleaned can be damaged.

According to the invention, it is provided that a plurality of projections are arranged in a matrix-like manner on the peripheral surface of the brush roller, with one end of the projection projecting out of the chamber via the air inlet. Then, when the protrusion comes into contact with the surface of an object to be cleaned, such as a surface of clothes, it is possible to successfully scrape the hair attached to the surface of the object to be cleaned without unduly pulling the object to be cleaned , effectively avoiding damage to the object to be cleaned and improving the cleaning effect. Further, when the brush roller is used to scrape the hair adhering to the surface of the object to be cleaned, the hair is largely prevented from being wound up on the projection, and even if the hair is wound up, it can be easily removed due to the transition portion. Therefore, it is not necessary to clean the brush roll frequently, and the brush roll is reusable, which is advantageous in reducing the cost of use. For example, the object to be cleaned can be a fabric, a floor, and a wall.

A clearance is provided between adjacent protrusions of the plurality of protrusions arranged in a matrix-like manner, so that the protrusions can better protrude into the surface of the object to be cleaned to effectively remove hair at deeper places. Further, the feet of a Individual projections (namely, the end attached to the peripheral surface of the brush roll) are not connected to each other and therefore easily deformed under the action of external forces, which facilitates assembly and at the same time softens the projections when they touch the surface of the object to be cleaned, preventing damage to the surface to be cleaned object is largely prevented. Even immediate removal of pet hair on body parts will not cause pain.

According to the invention, the end of the protrusion protrudes from the air inlet by a distance of not less than 0.5 mm to ensure a better hair removing effect.

According to the invention, along the axial direction of the brush roll, the air inlet and the air outlet are arranged opposite to each other on both sides of the brush roll, so that hair brought into the chamber by the brush roll can reach the air outlet in the shortest way and be sucked in, thereby avoiding hair accidentally falling into the chamber and accumulating in the chamber.

According to the invention, the cleaning head also comprises a drive mechanism which is set up to drive the brush roller to move. For example, the drive mechanism may comprise an electric motor configured to drive the brushroll to rotate to scrape hairs on the surface of the object to be cleaned and bring them into the chamber with the rotating motion to be sucked into the air outlet.

According to the invention, a heat dissipation port is provided on the body, which is designed to communicate the space of the driving mechanism with the outside environment, to avoid the driving mechanism (e.g. the electric motor) from being blocked after sucking the object to be cleaned and the Heat cannot be dissipated in time, damaging the electric motor.

According to the present invention, the cleaning head further includes a slide plate which is insertably and extendably disposed on a side of the heat dissipation port opposite to the drive mechanism, and there is a gap between the slide plate and the heat dissipation port. Thus, on the one hand, heat is dissipated from the interior of the cleaning head and transferred from the gap to the outside of the cleaning head to ensure that too much heat does not accumulate inside the cleaning head, particularly in the vicinity of the drive mechanism. On the other hand, the slide plate can cover the heat dissipation port, which contributes to dustproofing and aesthetics. The pluggable design makes maintenance easier.

According to the invention, it is provided that the drive mechanism is arranged above the brush roller in a direction pointing from the air inlet in the direction of the air outlet. Thus, along the axial direction of the brush roller, the overall length of the cleaning head is significantly shortened, which is advantageous for miniaturization of the product.

According to the present invention, along the axial direction of the brush roller, the length of the air outlet is shorter than the length of the air inlet to avoid the driving mechanism, which contributes to the miniaturization of the product.

An embodiment of the present invention further provides a cleaning device including the cleaning head. The cleaning device equipped with the above cleaning head has a better effect in removing hair on the surface of the object to be cleaned, and the removed hair is basically sucked into the inside of the cleaning device during cleaning and does not stay on the cleaning head without that the user has to manually clean the cleaning head. For example, the cleaning device can be a vacuum cleaner and the cleaning head can be a depilating brush of the vacuum cleaner. A vacuum cleaner using the cleaning head according to the present embodiment can effectively remove hairs attached and remaining on the surface of materials such as braids, textiles and carpets, and is particularly suitable for removing hairs remaining on the surface of clothes , which is worn on the body. In addition, the removed hair can be sucked directly into a waste container of the vacuum cleaner with an electrically conductive hose at the rear end of the cleaning head and the brush roller of the cleaning head itself remains clean and does not have to be cleaned again.

character list

• 1 eine schematische Darstellung eines Reinigungskopfs eines Ausführungsbeispiels,
• 2 eine schematische Darstellung der inneren Struktur des Reinigungskopfs nach 1,
• 3 eine schematische Darstellung der Verbindungsstruktur der Kammer und des Luftkanals in der inneren Struktur nach 2,
• 4 eine Schnittansicht durch die Linie A-A gemäß 2,
• 5 eine Draufsicht auf den Reinigungskopf nach 1,
• 6 eine schematische Darstellung des Reinigungskopfs nach 1 nach Entfernen der Gehäuseschale.

Show in it:

• 1 a schematic representation of a cleaning head of an embodiment,
• 2 a schematic representation of the internal structure of the cleaning head 1 ,
• 3 Fig. 12 shows a schematic representation of the connection structure of the chamber and the air duct in the internal structure 2 ,
• 4 a sectional view through line AA according to FIG 2 ,
• 5 a top view of the cleaning head 1 ,
• 6 a schematic representation of the cleaning head 1 after removing the housing shell.

DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

As mentioned in the prior art above, existing vacuum cleaners and brush heads are inefficient at cleaning hair that is attached to the surface of the fabric. Even if hairs are successfully removed from the surface of the fabric, they will stick to the brush head, which requires manual cleaning by the user, resulting in cumbersome operation.

To solve the problem, an embodiment of the present invention provides a cleaning head that includes a body and a brush roller. The body has a chamber adapted to receive the brushroll. The brushroll is rotatable or movable relative to the body within the chamber. The chamber includes an air inlet and an air outlet which are arranged opposite to each other. The cleaning head further includes an air duct connected to the chamber via the air outlet. The chamber and air passage are narrowed at the air outlet to form a narrow transition section.

With the solution of the present embodiment, the cleaning effect and the cleaning efficiency of the cleaning device can be improved, in particular, the cleaning ability of the hair can be improved, and the cleaning device itself is easy to maintain. Essentially no hair is tangled on the brush roll, eliminating the need for manual cleaning by the user. Specifically, the pressure of the gas flowing from the chamber into the air duct increases significantly when it flows through the narrow and long transition section, so when the brush roller with the hair moves close to the air outlet, most of the Amount of intake air acts on the brush roll to suck all hair into the air duct. As a result, hair that is wrapped around the brush roll during the operation of the cleaning head is automatically removed by the transition section, thereby avoiding hair remaining on the surface of the brush roll, thereby eliminating the need for manual cleaning by the user.

For a better understanding of the above object, features and advantages of the present invention, the specific exemplary embodiments will be discussed in more detail below with reference to the accompanying drawings.

show it 1 a schematic representation of a cleaning head 100 of an embodiment, 2 10 shows a schematic representation of the internal structure of the cleaning head 100. FIG 1 , 3 Fig. 12 shows a schematic representation of the connection structure of the chamber 111 and the air duct in the internal structure 2 , 4 a sectional view through line AA according to FIG 2 , 5 a plan view of the cleaning head 100 after 1 and 6 a schematic representation of the cleaning head 100 after 1 after removing the housing shell 116.

In order to clearly show the internal structure of the cleaning head 100, the single-sided housing shell 116 (as in 1 shown) and the housing 117 (as in 6 shown) of the cleaning head 100 in 2 away. The housing shell 116 is located on the outermost layer of the body 110 and contributes to the aesthetics. The housing 117 is located on an internal structural support of the housing shell 116 and the cleaning head 100. A plurality of reinforcing ribs 118 are provided on the housing 117 for support and protection.

In order to clearly show the concrete structure of the chamber 111, the air duct 114 and the transition section 150 connecting the chamber 111 and the air duct 114, in 3 the wall of the chamber 111 on the outside has been removed to better show the concrete structure of the transition section 150 (particularly the air outlet 113). 4 Fig. 12 shows only a sectional view of the chamber 111, the air duct 114, the transition section 150 and the brush roll 120 through AA in Fig 2 . 5 does not show the brush roller 120.

In order to facilitate the description, in the present embodiment, the length direction of the cleaning head 100 is denoted as the x direction, the width direction of the cleaning head 100 as the y direction, and the height direction of the cleaning head 100 as the z direction.

Specifically, on 1 until 4 pointed out. The cleaning head 100 according to the present exemplary embodiment comprises a body 110 and a brush roller 120, the body 110 having a chamber 111 which is adapted to receive the brush roller 120, the brush roller 120 being rotatable within the chamber 111 relative to the body 110 or is movable.

For example, the brushroll 120 may include a rotating shaft 124 . The rotary shaft 124 extends along one end of its axial direction and protrudes into the accommodating portion 119 arranged in the chamber 111 , and the rotary shaft 124 can be rotated relative to the accommodating portion 119 . A fixing portion 122 may be arranged along the other end of the brush roller 120 along its axial direction to fix the brush roller 120 in the chamber 111 movably. When cleaning, the brush roller 120 rotates relative to the chamber 111 driven by the rotating shaft 124, and now the mounting portion 122 is fixed to the chamber 111 and rotates relative to the chamber 111 while the rotating shaft 124 rotates synchronously with the mounting portion 122 .

For example, the brush roller 120 can move left and right along its axial direction relative to the chamber 111 . In the present specific embodiment, the axial direction of the brush roller 120 is substantially parallel to the x-direction and accordingly the brush roller 120 can reciprocate in the x-direction and in the opposite direction relative to the chamber 111 . During movement of the brush roll 120 relative to the chamber 111 , hair is scraped off the surface of the items to be cleaned by the brush roll 120 and sucked into the chamber 111 . By constructing the chamber 111, the transition portion 150 and the air passage 114 in the present embodiment, hair sucked into the chamber 111 can be quickly and completely sucked into the air passage 114 without snagging the brush roller 120 and the chamber 111 remain.

In a specific embodiment, the thickness of the wall of chamber 111 may be non-uniform. For example, referring to 4 the wall of the chamber 111 is thinnest near the widest part of the brush roll 120 to avoid collision with the rotating brush roll 120.

In a specific embodiment, the chamber 111 with reference to FIG 1 until 5 an air inlet 112 and an air outlet 113 arranged opposite to each other. The air inlet 112 is configured to draw the gas outside the cleaning head 100 into the chamber 111 and the air outlet 113 is configured to direct gas out of the chamber 111 and then into other structures inside the cleaning head 100 .

Furthermore, the side of the body 110 provided with the air inlet 112 can be regarded as the bottom side of the cleaning head 100 and at least part of the brush roller 120 protrudes from the air inlet 112 outside of the body 110 . When cleaning the object to be cleaned with the cleaning head 100, the bottom side is in contact with the surface of the object to be cleaned and now the brush roller 120 can also come in contact with the surface of the object to be cleaned to scrape the hair stuck on the remain on the surface of the object to be cleaned. The stripped hairs are brought into the chamber 111 with the movement of the brush roller 120 .

In a specific embodiment, the air inlet 112 includes reference 4 and 5 has a width of 14 to 20 mm, with the width direction, the axial direction of the brush roller 120 and the flow direction of the gas being perpendicular to each other. The flow direction of the gas refers to the flow direction of the gas at the air inlet 112. When the air inlet 112 is oriented perpendicular to the z-direction, the width direction is parallel to the y-direction.

In the present specific embodiment, the width W of the air inlet 112 should not be too large in order to prevent the object to be cleaned from being sucked into the chamber 111 during cleaning. Also, the width W of the air inlet 112 should not be too small, otherwise interference by the moving brush roll 120 is easy to occur, thus degrading the cleaning efficiency and damaging the brush roll 120 .

Thus, the contact portion between the body 110 and the surface of the object to be cleaned adopts a unique semi-closed and semi-open design, and the width W of the air inlet 112 is judiciously adjusted according to the rotation radius of the brush roller 120 during movement, which can effectively pick up not only hair , but also it can be avoided that the cleaned tissue is sucked too much into the cleaning head 100 and thus the brush roller 120 no longer rotates or the object to be cleaned is damaged.

In a specific embodiment, further reference can be made to FIG 2 until 4 the cleaning head 100 further comprises an air duct 114 connected to the chamber 111 via the air outlet 113, the chamber 111 and the air duct 114 being narrowed at the air outlet to form a narrow transition section 150.

Specifically, the transition portion 150 is configured to connect the chamber 111 and the air duct 114 and serve as a transition. The junction between the transition section 150 and the chamber 111 can be used as the air outlet 113 of the chamber 111 can be understood and the connection between the transition section 150 and the air duct 114 can be understood as the air inlet of the air duct 114 .

Furthermore, with reference to 3 the narrow shape mean that the width of the air outlet 113 in the y-direction is smaller than the width of the chamber 111 and the air duct 114 in the y-direction. Furthermore, with reference to 5 the width of the air outlet 113 in the y-direction can be even smaller than the width W of the air inlet 112.

When cleaning the object to be cleaned with the cleaning head 100, the brush roller 120 protruding from the air inlet 112 is in contact with the surface of the object to be cleaned and scrapes hairs attached to the surface of the object to be cleaned and the The hairs stripped off are brought into the chamber 111 with the rotating movement of the brush roller 120 and gradually approach the air outlet 113. The pressure in the vicinity of the air outlet 113 with the transition section 150 increases and the greatly increased amount of intake air essentially acts on the brush roller 120, which rotatingly moves near the air outlet 113, whereby the hair is sucked thereon, and the sucked hair enters the air duct 114 through the air outlet 113. At this time, the hair scraped off the surface of the object to be cleaned is automatically inhaled into the air duct 114 without staying on the surface of the brush roller 120, and the whole process requires no user's manual intervention.

Thus, the cleaning effect and cleaning efficiency of the cleaning device (e.g., the cleaning head 100) can be improved, in particular, the cleaning ability of the hair can be improved, and the cleaning device itself is easy to maintain. Substantially no hair is tangled on the brush roll 120, eliminating the need for manual cleaning by the user. Specifically, the pressure of the gas flowing from the chamber 111 into the air passage 114 increases significantly as it flows through the narrow and long transition section 150, so that when the brush roller 120 moves close to the air outlet 113 with the hair , most of the amount of intake air acts on the brush roll 120 to suck all the hair into the air duct 114 inside. Thus, hairs wrapped around the brush roll 120 during the operation of the cleaning head 100 are automatically removed by the transition portion 150, thereby avoiding hairs remaining on the surface of the brush roll 120, thereby eliminating the need for manual cleaning by the user.

In a specific embodiment, the thickness of the transition section 150 along the z-direction can be substantially equal to the thickness of the wall of the chamber 111 . That is, the chamber 111 and the air passage 114 are joined directly and narrowed at the junction to form the transition portion 150 . Now, when viewed from the plane formed by the y-direction and the z-direction (namely, a plane perpendicular to the axial direction of the brush roller 120), referring to FIG 4 the chamber 111, the transition section 150 and the air channel 114 are formed in the figure of eight and the chamber 111 and the air channel 114 form the upper and lower circles of the figure of eight, respectively, while the transition section 150 is the intersection of the upper and lower circles forms.

Accordingly, gas exits the air outlet 113 of the chamber 111 and then immediately enters the air duct 114 through the air inlet of the air duct 114 .

Thus, a narrow transition portion 150 is arranged as a neck between the upper and lower cavities, which are large-sized, so that the pressure of the gas at the air outlet 113 becomes significantly larger, thereby ensuring that hair is sucked into the air duct 114 successfully when the brush roller 120 moves near the air outlet 113.

In a variant, the thickness of the transition section 150 along the z-direction can be increased accordingly, that is, the transition section 150 extends a certain distance towards the air duct 114 in order to increase the spatial area with a large pressure. Now the gas flows from the air outlet 113 of the chamber 111 and then through a narrow channel of a certain length and after that enters the air channel 114 through the air inlet of the air channel 114 .

In a specific embodiment, with reference to the 2 until 5 the cross-sectional area of the transition section 150 can be smaller than the cross-sectional area of the chamber 111 and the cross-sectional area of the transition section 150 can be smaller than the cross-sectional area of the air duct 114. The cross-section refers to a plane (namely a plane passing through the x-direction and the y-direction) perpendicular to a direction pointing from the chamber 111 toward the air duct 114.

Specifically, with reference to 2 and 3 the length of the transition section 150 along the x-direction may be less than the length of the chamber 111 along the x-direction.

Furthermore, with reference to 4 the width of the transition section 150 along the y-direction can be smaller than the width of the chamber 111 along the y-direction and the width of the air channel 114 along the y-direction.

Thus, by changing the size of the cross-sectional area, the pressure of the gas changes significantly as the gas flows from the chamber 111 with a larger area to the air outlet 113 with a smaller area, thereby ensuring that hair is blown with the movement of the brush roller 120 into the be successfully sucked into the air duct 114 near the air inlet 113 .

In a specific embodiment, the junction between the chamber 111 and the transition section 150 can be a rounded and smooth transition. For example, referring to 4 the inner wall of the chamber 111 rounded, smooth and non-angled to the air outlet 113 extend.

Furthermore, the transition section 150 with reference to FIG 3 contain a partition plate 151 provided with the air outlet 113 and arranged between the air duct 114 and the chamber 111 and serving to divide the air duct 114 and the chamber 111 into two separate cavities. The presence of the partition plate 151 causes the air duct 114 and the chamber 111 to be connected only through the air outlet 113 . A narrow transition area is formed between the chamber 111 and the air duct 114 in that the opening of the air outlet 113 formed on the partition plate 151 is smaller than the cross-sectional area of the air duct 114 and the cross-sectional area of the chamber 111.

The junction between the chamber 111 and the partition plate can be a rounded and smooth transition.

The connection between the air duct 114 and the separator plate can be an unrounded and smooth transition. With reference to 4 the air duct 114 can be attached directly to the partition plate 151.

In a variant, the connection point between the air duct 114 and the transition section 150 can also be a rounded and smooth transition.

On the one hand, the rounded and smooth transition ensures good aesthetics and ease of manufacture. On the other hand, it is also possible to avoid inaccessible places inside the cleaning head 100 where hair collects.

In a concrete embodiment, the ratio between the width of the air outlet 113 and the width of the chamber 111 may be in the range of 1:4 to 1:8, with the width direction, the axial direction of the brush roller 120 and the flow direction of the gas being perpendicular to each other. The flow direction of the gas refers to the flow direction of the gas at the air outlet 113. When the air outlet 113 is oriented perpendicular to the z-direction, the width direction is parallel to the y-direction.

Thus, by judiciously designing the size ratio of the air outlet 113 to the chamber 111, the gas pressure changes significantly as the gas flows from the spacious chamber 111 to the narrower air outlet 113, thereby ensuring that hair is successfully sucked into the air duct 114 when moves the brush roll 120 near the air outlet 114.

Furthermore, the width of the air duct 114 can also be larger than the width of the air outlet 113. Thus, the air duct 114 is designed to be more spacious, which is advantageous in order to avoid hair that is sucked into the air outlet 113 from blocking the air duct 114, thereby ensuring that the cleaning head 100 can efficiently and continuously clean hairs on the surface of the fabric.

In practical applications, the ratio range between the width of the air outlet 113 and the width of the chamber 111 can be adjusted according to the air velocity of the gas when flowing.

In a specific embodiment, the air outlet 113 extends with reference to FIG 2 , 3 and 5 substantially along the axial direction of the brush roll 120 to ensure that hairs wound in each portion of the brush roll 120 can be sucked into the air outlet 113 successfully. In other words, in the present specific embodiment, the air outlet 113 runs essentially along the x-direction.

For example, the length of the air outlet 113 along the x-direction can be equal to the length of the brush roll 120 along its axial direction to ensure that hair falling into the chamber during the rotating movement of the brush roll 120 111 are brought, can be effectively sucked into the air duct 114.

For example, referring to the 2 , 3 and 5 the length of the air outlet 113 along the x-direction can be slightly shorter than the length of the brush roller 120 along its axial direction to make room for the placement of the electric motor 141, making the inner structure of the cleaning head 100 more compact and the overall size of the cleaning head 100 is reduced.

In a specific embodiment, the cleaning head 100 can continue with reference to FIG 1 , 2 , 5 and 6 include a handle portion 130 whose direction of extension is substantially parallel to the axial direction of the brush roller 120 . That is, the handle portion 130 may extend substantially along the x-direction.

Thus, when using the cleaning head 100, an existing forward and backward movement along the extending direction of the grip portion 130 is converted into left and right movement, making the use of the cleaning head 100 more ergonomic and user's operation more labor-saving and convenient.

Specifically, the axis of the handle portion 130, which extends substantially along the x-direction, is parallel to the axis of the rotating shaft of the brush roller 120, so that when the user holds the handle portion 130 to operate the cleaning head 100 and the to-be-cleaned object to be cleaned, by moving the body 110 to the left and right (namely, moving in the y-direction and its opposite direction), the surface of the object to be cleaned is cleaned. This process is similar to the process where the user holds a comb to comb the hair. The user can operate the cleaning head 100 with one hand, so that the user alone can remove hair remaining on the surface of the object to be cleaned.

Furthermore, the narrow transition section 150 causes the design direction of the air channel 114 to essentially coincide with the direction of extension of the handle section 130 . Thus, the extending directions of the air inlet 112, the chamber 111, the air outlet 113, the air duct 114 and the grip portion 130 coincide and are substantially in the same straight line in the z-direction. On the one hand, hair sucked into the chamber 111 can reach the air duct 114 with the shortest path of movement. On the other hand, the user can move the cleaning head 100 left and right in the y-direction for the cleaning operation.

In a specific embodiment, with reference to 2 and 4 a plurality of projections 121 may be arranged in a matrix-like manner on the peripheral surface of the brush roller 120 , one end 121 a of the projection 121 protruding from the chamber 111 via the air inlet 112 .

Concretely, the projections 121 may be columnar or elongated and may have a root 121b and an end 121a along their extending direction. The base 121 b is an end where the projections 121 are fixed to the peripheral surface of the brush roller 120 , while the end 121 a is an end of the projection 121 opposite to the peripheral surface of the brush roller 120 .

Alternatively, the end 121a of the projection 121 may be hooked to better hook the hair.

More specifically, the length of the protrusion 121 along its extension direction may be slightly greater than its diameter, for example, the length-to-diameter ratio of the protrusion 121 may be greater than 5. The length of the projection 121 along the direction in which it extends relates to the distance from the foot 121b to the end 121a.

When the axial direction of the brush roller 120 is substantially parallel to the x-direction, the extending direction of the protrusion 121 can be substantially parallel to the z-direction.

Furthermore, the projection 121 may be made of an elastic material. For example, protrusion 121 may be a thermoplastic elastomer, such as. B. vulcanized rubber.

The Shore hardness a of the projection 121 (Shore-A for short) can be 20 to 35 Shore to ensure that the brush roller 121 can effectively clean hair at high speed, while at the same time ensuring that the projection 121 does not hit body parts causes pain.

Thus, when the projection 121 comes into contact with the surface of an object to be cleaned such as the surface of clothes, then it is possible to successfully scrape the hair attached to the surface of the object to be cleaned without excessively touching the object to be cleaned to pull, effectively avoiding damage to the object to be cleaned and improving the cleaning effect. When the brush roller 120 is used to scrape the hair attached to the surface of the object to be cleaned, Furthermore, the winding of hair on the projection 121 is largely prevented, and even if the hair is wound up, it can be easily removed due to the transition portion 150. Therefore, it is not necessary to frequently clean the brush roll 120, and the brush roll 120 is reusable, which is advantageous for reducing the usage cost. For example, the object to be cleaned can be a fabric, a floor, and a wall.

Furthermore, with reference to 2 there is a spacing between adjacent projections 121 of the plurality of projections 121 arranged in a matrix-like manner, so that the projections 121 can better protrude into the surface of the object to be cleaned in order to effectively remove hair at deeper places. Further, the feet 121b of each projection 121 are not connected to each other and are therefore easily deformed under the action of external forces, which facilitates assembly and at the same time softens the projections 121 when they touch the surface of the object to be cleaned, preventing damage to the object to be cleaned is largely prevented. Even immediate removal of pet hair on body parts will not cause pain.

Further, the plurality of protrusions 121 arranged in a matrix-like manner may be specifically arranged on the peripheral surface of the brush roller 120 such that the peripheral surface of the brush roller 120 is provided with protrusions 121 arranged in rows. Each row of projections 121 is identified as a row of projections 121, and the direction of extension of each row of projections 121 is substantially parallel to the axial direction of the brush roller 120.

Further, along the circumferential direction of the brush roller 120 , a plurality of rows of protrusions 121 are arranged at intervals on the circumferential surface of the brush roller 120 . Each row of protrusions 121 includes a plurality of non-zero pitch protrusions 121 .

Further, the protrusions 121 and the body of the brush roller 120 may be integrally formed. Alternatively, the projection 121 may be fixed to the peripheral surface of the brush roller 120 by adhesion or the like.

How to continue 2 and 4 As can be seen, the end 121a of the projection 121 protrudes from the air inlet 112 by a distance of not less than 0.5 mm to ensure a better hair removing effect.

For example, the end 121a of the projection 121 can protrude from the air inlet 112 by about 1 mm to ensure that the brush roller 120 can effectively contact the object to be cleaned during use of the cleaning head 100, eliminating hair on the surface of the object to be cleaned Object are stripped using the projection 121.

In a concrete embodiment, the peripheral surface of the brush roller 120 may be further provided with a stiffener 123 arranged along the peripheral direction of the brush roller 120 with the plurality of protrusions 121 alternately on the peripheral surface of the brush roller 120 .

For example, the stiffener 123 may include a rib portion that protrudes outwardly from the peripheral surface of the brushroll 120 .

The stiffener 123 may further include an indentation recessed inward from the peripheral surface of the brush roller 120 .

The stiffener 123 is designed so that the peripheral surface of the brush roller 120 is concave and convex, and even if hair is wound around the brush roller 120, it cannot fully abut the peripheral surface of the brush roller 120, which facilitates the subsequent cleaning operation of the brush roller 120.

Further, along the circumferential direction of the brush roller 120, the stiffener 123 and the individual rows of projections 121 are arranged alternately. That is, a row of projections 121 is arranged between two adjacent stiffeners 123 .

Further, along the circumferential direction of the brush roller 120, the distance between the stiffener 123 and the two adjacent rows of projections 121 may be the same or different.

Along the circumferential direction of the brush roller 120 , the stiffener 123 and the protrusions 121 arranged in multiple rows may be arranged unevenly and alternately on the circumferential surface of the brush roller 120 . For example, one or more stiffeners 123 may be provided between some rows of protrusions 121 while no stiffener 123 is provided between some rows of protrusions 121 .

In a concrete embodiment, the extending direction of the protrusions 121 of a single row along the axial direction of the brush roller 120 may be polygonal, V-shaped, wavy, or arc-shaped.

Furthermore, the extension direction of the stiffener 123 along the axial direction of the Brush roll 120 can also be polygonal, V-shaped, or arc-shaped.

Further, the length of the rib strip 123 along its direction of extension may be equal to the length of the protrusions 121 of a single row.

In a specific embodiment, further with reference to 2 and 4 along the axial direction of the brush roller 120, the air inlet 112 and the air outlet 113 are arranged opposite to each other on both sides of the brush roller 120, so that hair brought into the chamber 111 by the brush roller 120 can reach the air outlet 113 and therein by the shortest route can be sucked in, thereby avoiding hair accidentally falling into the chamber 11 and accumulating there.

In a specific embodiment, the cleaning head 100 can continue with reference to FIG 2 include a drive mechanism 140 configured to drive the brushroll 120 to move.

For example, the drive mechanism 140 may include an electric motor 141 configured to drive the brush roll 120 to rotate to scrape hairs on the surface of the object to be cleaned and bring them into the chamber 111 with the rotating motion to be sucked into the air outlet 113 to become.

For example, the electric motor 141 can be a rotary motor.

Further, the drive mechanism 140 may include a drive belt 142 configured to connect the electric motor 141 to the rotary shaft 124 of the brush roller 120 to transmit the rotational driving force of the electric motor 141 to the rotary shaft 124 .

In a specific embodiment, the drive mechanism 140 may be arranged above the brush roller 120 along the direction pointing from the air inlet 112 toward the air outlet 113 (namely, along the z-direction). For example, the electric motor 141 is located above the brush roller 120. Thus, along the axial direction of the brush roller 120 (namely, the x-direction), the overall length of the cleaning head 100 is significantly shortened, which is advantageous for the miniaturization of the product.

Furthermore, with reference to 2 and 5 provided that along the axial direction of the brush roller 120, the length of the air outlet 113 is smaller than the length of the air inlet 112 to avoid the drive mechanism 140, which contributes to the miniaturization of the product. For example, the air duct 114 and the electric motor 141 can be arranged side by side in the x-direction above the brush roller 120 in the z-direction.

In a specific embodiment, with reference to 6 a heat dissipation port 115 may be provided on the body 100, which is adapted to communicate the space of the driving mechanism 140 with the outside environment to avoid the driving mechanism 140 (e.g. the electric motor 141) after sucking the object to be cleaned is blocked and the heat cannot be dissipated in time, whereby the electric motor 141 may be damaged.

Concretely, the heat dissipation port 115 may be formed at a position of the housing 117 corresponding to the electric motor 141 in order to dissipate the heat generated at the electric motor 141 outside the body 110 .

Further, the housing shell 116 and the housing 117 can separate the central gap by means of the reinforcing rib 118 so that the heat at the heat dissipation port 115 can be further conducted out of the cleaning head 100 via the gap.

Further, the housing shell 116 covers the heat dissipation port 115 so that the heat dissipation port 115 is invisible to the user when viewing the cleaning head 100 from the outside.

In a specific embodiment, the cleaning head 100 can continue with reference to FIG 1 and 6 a slide plate 160 that is insertably and extendably arranged on a side of the heat dissipation port 115 opposite to the drive mechanism 140 , with a gap being provided between the slide plate 160 and the heat dissipation port 115 .

Specifically, the housing shell 116 and the housing 117 are provided with an opening at the end of the body 110 along the x-direction (namely, at the side wall of the body 110), and the slide plate 160 can be inserted from the opening, thus covering the heat dissipation port 115. as in 6 shown. The sliding plate 160 can also be pulled out of the opening.

Furthermore, along the y-direction, there is also a gap between the slide plates 160 and the heat dissipation port 115 to dissipate heat in the vicinity of the electric motor 141.

Thus, on the one hand, heat can be dissipated from the interior of the cleaning head 100 and released from the gap to the outside of the cleaning head 100 to ensure that too much heat does not accumulate inside the cleaning head 100, particularly in the vicinity of the drive mechanism 140. On the other hand, the slide plate 160 can cover the heat dissipation terminal 115, which contributes to dustproofing and aesthetics. The pluggable design makes maintenance easier.

An embodiment of the invention further provides a cleaning device ready, the cleaning head 100 after 1 until 6 includes.

For example, the cleaning device may include a vacuum cleaner. The handle portion 130 may be hollow, and the hollow portion is connected to the air duct 114 . When the vacuum cleaner operates, the dust-laden air is sucked in through the air inlet 162a, and the sucked-in dust-laden air is sequentially discharged through the chamber 111, the air outlet 113, the air duct 114, and the handle portion 130 into a dust filter bag (not shown, also referred to as a dustbin ) of the vacuum cleaner. During suction, the rotating brush roll 120, which is driven by the electric motor 141, scrapes hairs on the surface of the object to be cleaned. When stripped hairs are brought close to the air outlet 113 by the protrusion 121 , they are sucked into the air outlet 113 with the airflow and then finally enter the waste container through the air duct 114 and the handle portion 130 .

Furthermore, the handle portion 130 includes a locking mechanism 131 for connecting to or disconnecting from an electrically conductive hose (not shown) of the vacuum cleaner in order to attach or detach the cleaning head 100 to the vacuum cleaner.

Thus, the cleaning device with the cleaning head 100 according to 1 until 6 is equipped, a better hair removal effect on the surface of the object to be cleaned, and the removed hair is substantially sucked into the interior of the cleaning device during cleaning and does not remain on the cleaning head 100, without the user having to clean the cleaning head 100 manually .

For example, the cleaning device can be a vacuum cleaner and the cleaning head 100 can be a depilating brush of the vacuum cleaner. A vacuum cleaner using the cleaning head 100 according to the present embodiment can effectively remove hairs attached and remain on the surface of materials such as braids, fabrics and carpets, and is particularly suitable for removing hairs attached to the surface of clothes remain, which is worn on the body. In addition, the removed hair can be sucked directly into a vacuum cleaner waste container with an electrically conductive hose at the rear end of the cleaning head 100 and the brush roller 120 of the cleaning head 100 itself remains clean and does not have to be cleaned again.

Although specific embodiments have been described above, they are not intended to limit the scope of the present disclosure, even if only a single embodiment has been described with respect to a particular feature. The example features provided in the present disclosure are to be construed as exemplary and not limiting unless otherwise specified. In the specific implementation, the technical features of one or more subclaims can be combined with the technical features of the independent claims, and the technical features from the respective independent claims can be combined in any suitable way, without being limited to the specific combinations listed in the claims .

Despite the disclosure of the present invention, it is not limited thereto. Any person skilled in this field can make various changes and modifications without departing from the spirit and scope of the invention, so that the scope of protection of the present invention is governed by the scope defined by the claims.

Reference List

100

cleaning head

110

Body

111

chamber

112

air intake

113

air outlet

114

air duct

115

heat dissipation port

116

housing shell

117

Housing

118

reinforcing rib

119

recording section

120

brush roll

121

head Start

121a

end of the projection

121b

foot of the ledge

122

attachment section

123

stiffening

124

rotary shaft

130

handle section

131

locking mechanism

140

drive mechanism

141

electric motor

142

drive belt

150

transition section

151

partition plate

160

sliding plate

W

width of the air intake

x

Length direction of the cleaning head

y

width direction of the cleaning head

e.g

Height direction of the cleaning head

Claims (13)

A cleaning head (100) comprising a body (110) and a brush roll (120), the body (110) having a chamber (111) adapted to receive the brush roll (120), the brush roll (120) inside of the chamber (111) is rotatable or movable relative to the body (110), characterized in that the chamber (111) comprises an air inlet (112) and an air outlet (113) arranged opposite to each other, the cleaning head ( 100) further comprising: an air duct (114) connected to the chamber (111) via the air outlet (113), the chamber (111) and the air duct (114) being constricted at the air outlet (113) to to form a narrow transition section (150). cleaning head (100) after claim 1 , characterized in that the chamber (111), the transition portion (150) and the air passage (114) are formed in an 8-shape on a plane perpendicular to the axial direction of the brush roller (120). cleaning head (100) after claim 1 , characterized in that the cross-sectional area of the transition section (150) is smaller than the cross-sectional area of the chamber (111) and the cross-sectional area of the air duct (114), the cross-sectional area being an area perpendicular to one of the chamber (111) in direction of the air duct (114) pointing direction is directed. cleaning head (100) after claim 1 , characterized in that a rounded and smooth transition is provided at a connection point between the chamber (111) and the transition section (150) and/or that a rounded and smooth transition is provided at a connection point between the air duct (114) and the transition section (150). transition is planned. cleaning head (100) after claim 1 , characterized in that the transition section (150) includes a partition plate (151) for separating the chamber (111) and the air duct (114), on the partition plate (151) the air outlet (113) is formed. cleaning head (100) after claim 1 , characterized in that the ratio between the width of the air outlet (113) and the width of the chamber (111) is in the range of 1:4 to 1:8, the width direction, the axial direction of the brush roller (120) and the flow direction of the gas are perpendicular to each other. cleaning head (100) after claim 1 , characterized in that the width of the air passage (114) is larger than the width of the air outlet (113), wherein the width direction, the axial direction of the brush roller (120) and the flow direction of the gas are perpendicular to each other. cleaning head (100) after claim 1 , characterized in that the air outlet (113) extends substantially along the axial direction of the brush roller (120). cleaning head (100) after claim 1 , characterized in that a plurality of projections (121) are arranged in a matrix-like manner on the peripheral surface of the brush roller (120), one end (121a) of the projection (121) protruding from the chamber (111) via the air inlet (112). cleaning head (100) after claim 9 characterized in that the end (121a) of the projection (121) protrudes from the air inlet (112) by a distance of not less than 0.5 mm. cleaning head (100) after claim 1 , characterized in that in a direction pointing from the air inlet (112) towards the air outlet (113), a drive mechanism (140) is arranged above the brush roller (120). cleaning head (100) after claim 11 , characterized in that along the axial direction of the brush roller (120), the length of the air outlet (113) is smaller than the length of the air inlet (112) to avoid the drive mechanism (140). Cleaning device, characterized in that it comprises a cleaning head (100) according to any one of the preceding Claims 1 until 12 includes.

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