Dynamic complementary efficient and stable cleaning row brush

Abstract

The utility model discloses a dynamic complementary efficient and stable cleaning row brush. A relative rotation design of an active cleaning brush head and a plurality of auxiliary cleaning brush heads is adopted. Through meshing of the driving gear and the driven gear, dynamic complementary movement of the brush heads is achieved, the cleaning efficiency is remarkably improved, and the comprehensiveness and uniformity of cleaning are guaranteed. By means of the design, various stains can be effectively removed, and especially for oil stains, dust and the like which are difficult to treat, the excellent cleaning capacity is shown. Meanwhile, the friction force between the bristles and the ground is increased, slipping is avoided, and the cleaning stability is improved. The brush heads share friction force, the service life of the bristles is prolonged, and maintenance cost is reduced. In addition, the row brush is suitable for cleaning various surfaces, can easily deal with hard wood floors or rough carpets, and has high applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning brushes, in particular to a dynamic complementary, efficient and stable cleaning brush. Background Art

[0002] As an efficient cleaning tool, the cleaning brush has been widely used in daily life and industrial production. It is usually composed of a brush head and a brush handle. The working principle is to remove dirt and debris on the floor, wall or other surfaces to be cleaned through the mechanical movement of the brush head. In terms of application scenarios, it is suitable for cleaning various indoor and outdoor hard floors, such as household cleaning, public facility cleaning, and industrial equipment cleaning.

[0003] At present, the common cleaning method of cleaning with a row of brushes is to use a motor to drive the brush body to rotate, and use the friction generated by the rotation to remove stains. However, during the cleaning process, due to the effect of centrifugal force, the bristles may slip between the bristles and the surface to be cleaned, affecting the stability and effect of cleaning. For example, when cleaning the floor, the rotating bristles may deviate from the predetermined cleaning trajectory due to centrifugal force, resulting in incomplete cleaning or non-cleaning of some areas.

[0004] In order to solve this problem, the prior art often increases the contact pressure between the bristles and the surface to be cleaned or optimizes the material and design of the bristles to increase the friction. However, this often increases the wear rate of the bristles, shortens their service life, and may also cause damage to the surface to be cleaned. For example, when cleaning sensitive surfaces such as marble or wooden floors, too hard bristles or too much contact pressure may leave scratches on the surface.

[0005] In addition, there are also practices in the industry to use cleaning vehicles or cleaning robots, which are usually equipped with brush wheels that rotate in opposite directions at the front end. However, these brush wheels are designed mainly to assist cleaning, and the centrifugal force generated by their rotation is still a problem. The brush wheels have limited friction on the surface to be cleaned, and can often only sweep away large debris on the surface, but cannot achieve the effect of deep cleaning. For example, when cleaning floors stained with oil or stubborn stains, the cleaning ability of this type of brush wheel is relatively limited, and it is difficult to meet the needs of deep cleaning.

[0006] Therefore, when the brush wheel performs deep cleaning operations, how to reduce the negative impression caused by the centrifugal force of the brush wheel and improve stability has become a technical problem to be solved by the utility model. Utility Model Content

[0007] The technical problem solved by the utility model is to provide a dynamic complementary high-efficiency and stable cleaning brush in response to the defects existing in the above-mentioned prior art, so as to solve the problem of how to reduce slipping and improve cleaning stability during the cleaning process proposed in the above-mentioned background technology.

[0008] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0009] A dynamic complementary high-efficiency and stable cleaning brush comprises a brush body, an active cleaning brush head, an auxiliary cleaning brush head, a driving gear and a driven gear;

[0010] The number of auxiliary cleaning brush heads is more than 3;

[0011] An active cleaning brush head and more than three auxiliary cleaning brush heads are rotatably arranged on the brush body through a plurality of positioning grooves;

[0012] On the brush body, more than three auxiliary cleaning brush heads are distributed around the active cleaning brush head;

[0013] The active cleaning brush head is fixedly provided with a driving gear, and the auxiliary cleaning brush head is fixedly provided with a driven gear meshing and connected with the driving gear;

[0014] The auxiliary cleaning brush heads, which are three or more in number, are respectively meshed and connected with the driving gear on the active cleaning brush head through the driven gear.

[0015] As a further solution of the utility model, the number of auxiliary cleaning brush heads is 6. On the brush body, the 6 auxiliary cleaning brush heads are evenly distributed on a circumference centered on the active cleaning brush head.

[0016] As a further solution of the utility model, a rotational power output component is fixedly connected to the brush body, and the active cleaning brush head is connected to the rotating shaft of the rotational power output component in a linkage cooperation manner.

[0017] As a further solution of the present invention, the rotary power output member is a motor.

[0018] As a further solution of the utility model, the active cleaning brush head includes a main rotating shaft and a main cleaning brush, and the auxiliary cleaning brush head includes a driven rotating shaft and an auxiliary cleaning brush. The main rotating shaft and the driven rotating shaft are respectively rotatably connected to the brush body through multiple positioning grooves. The bottom end of the main rotating shaft is fixedly connected to the main cleaning brush head, and the bottom end of the driven rotating shaft is fixedly connected to the auxiliary cleaning brush head.

[0019] As a further solution of the utility model, the brush body includes a brush cover shell, and the brush cover shell is provided with avoidance holes for installing the main cleaning brush head and the auxiliary cleaning brush head respectively.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. Enhanced cleaning ability and efficiency: The utility model forms a dynamic and complementary cleaning mode through the relative movement of the main brush head and the auxiliary cleaning brush head, which not only significantly improves the cleaning efficiency, but also enables the bristles to cover the surface to be cleaned more comprehensively and at multiple angles. In practical applications, this design can more effectively remove various stains and impurities, including oil stains and dust that are difficult to remove, thereby greatly improving the cleaning ability.

[0022] 2. Improve cleaning stability: The relative rotation design increases the friction between the bristles and the ground, which not only helps to avoid slipping and misalignment, but also ensures uniformity and consistency of cleaning. During the cleaning process, the synergy between the brush heads ensures that every part of the entire cleaning area can be treated evenly and effectively.

[0023] 3. Extend the service life of bristles: Due to the relative movement between the main brush head and the auxiliary cleaning brush head, the friction force on each brush head is more uniform, reducing the excessive wear of individual bristles. This design not only extends the service life of the bristles, but also reduces maintenance costs and improves the overall economic benefits.

[0024] 4. Wide applicability: The dynamic complementary design of the utility model enables it to adapt to the cleaning needs of many different types of surfaces. Whether it is smooth hardwood floors, rough carpets, or floors of various other materials, the utility model can provide efficient and stable cleaning effects.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 It is a structural schematic diagram of the utility model.

[0028] Figure 2 for Figure 1 Schematic diagram of the structure from another perspective.

[0029] Figure 3 It is a front schematic diagram of the utility model.

[0030] Figure 4 for Figure 3AA cross-sectional view of .

[0031] Figure 5 It is a structural schematic diagram of the driving gear and the driven gear of the utility model.

[0032] Figure 6 It is a schematic diagram of the position structure of the avoidance hole of the utility model.

[0033] Figure 7 for Figure 3 Schematic diagram of the style.

[0034] The reference numerals and names in the figures are as follows:

[0035] Brush body 1, active cleaning brush head 2, auxiliary cleaning brush head 3, active gear 4, driven gear 5, main rotating shaft 7, main cleaning brush 8, driven rotating shaft 9, auxiliary cleaning brush 10, brush cover shell 11 and avoidance hole 12. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1 —7, in the embodiment of the utility model, a dynamic complementary efficient and stable cleaning brush comprises a brush body 1, an active cleaning brush head 2, an auxiliary cleaning brush head 3, an active gear 4 and a driven gear 5; the number of the auxiliary cleaning brush heads 3 is more than 3;

[0038] An active cleaning brush head 2 and more than three auxiliary cleaning brush heads 3 are rotatably arranged on the brush body 1 through a plurality of positioning grooves; on the brush body 1, more than three auxiliary cleaning brush heads 3 are distributed around the active cleaning brush head 2; a driving gear 4 is fixedly arranged on the active cleaning brush head 2, and a driven gear 5 meshingly connected with the driving gear 4 is fixedly arranged on the auxiliary cleaning brush head 3;

[0039] The auxiliary cleaning brush heads 3, which are more than 3 in number, are meshed and connected with the driving gear 4 on the active cleaning brush head 2 through the driven gear 5. The number of the auxiliary cleaning brush heads 3 is 6, and on the brush body 1, the 6 auxiliary cleaning brush heads 3 are evenly distributed on a circumference centered on the active cleaning brush head 2.

[0040] A rotational power output component is fixedly connected to the brush body 1, wherein the rotational power output component is a motor known to ordinary technicians in the field in the prior art, and the rotating shaft of the motor and the main rotating shaft 7 of the active cleaning brush head 2 can be linked and connected with each other during installation, for example, by a snap-on connection, which are all extended implementation methods known to ordinary technicians in the field.

[0041] The active cleaning brush head 2 includes a main rotating shaft 7 and a main cleaning brush 8, and the auxiliary cleaning brush head 3 includes a driven rotating shaft 9 and an auxiliary cleaning brush 10. The main rotating shaft 7 and the driven rotating shaft 9 are respectively connected to the brush body 1 through a plurality of positioning grooves. The bottom end of the main rotating shaft 7 is fixedly connected to the main cleaning brush 8, and the bottom end of the driven rotating shaft 9 is fixedly connected to the auxiliary cleaning brush 10. The length of the main cleaning brush 8 is greater than the length of the auxiliary cleaning brush 10. In this case, the cleaning effect and efficiency can be optimized. Since the main cleaning brush 8 is longer, it can cover a larger cleaning area, thus becoming the main force of the cleaning operation. At the same time, the longer main cleaning brush 8 can also clean some hard-to-reach corners and gaps more deeply. The shorter auxiliary cleaning brush 10 can perform more detailed cleaning around the main cleaning brush 8, and the two cooperate with each other to form an efficient dynamic complementary cleaning mode. Such a design not only improves the coverage of cleaning, but also ensures the uniformity and thoroughness of cleaning, thereby bringing users a better cleaning experience. The brush body 1 includes a brush cover shell 11, and the brush cover shell 11 is provided with avoidance holes 12 for installing the main cleaning brush 8 and the auxiliary cleaning brush 10. Among them, the main rotating shaft 7 and the driven rotating shaft 9 can be fixedly arranged in the plurality of positioning grooves, so that the main rotating shaft 7 and the driven rotating shaft 9 are rotatably arranged on the brush body 1 through bearings, which are all extended implementation methods known to ordinary technicians in the field.

[0042] A dynamic complementary efficient and stable cleaning brush comprises the following steps:

[0043] Step 1, providing a dynamic complementary efficient and stable cleaning row brush, the row brush comprises a brush body 1, an active cleaning brush head 2, and more than three auxiliary cleaning brush heads 3, wherein a driving gear 4 is fixedly provided on the active cleaning brush head 2, a driven gear 5 meshingly connected with the driving gear 4 is fixedly provided on the auxiliary cleaning brush head 3, and more than three auxiliary cleaning brush heads 3 are respectively meshed and connected with the driving gear 4 on the active cleaning brush head 2 through the driven gear 5;

[0044] Step 2, start the power source of the cleaning brush, so that the power source drives the active cleaning brush head 2 to rotate through the transmission member;

[0045] Step 3, during the rotation of the active cleaning brush head 2, the active gear 4 and the driven gear 5 are meshed to drive more than three auxiliary cleaning brush heads 3 to rotate in a relative motion with the active cleaning brush head 2;

[0046] Step 4, place the row of brushes on the surface to be cleaned, and through the relative movement of the active cleaning brush head 2 and the auxiliary cleaning brush head 3, and the friction between the bristles and the surface to be cleaned, stains and impurities are removed dynamically and complementary to achieve efficient and stable cleaning.

[0047] In step 3, the auxiliary cleaning brush head 3 rotates in a direction opposite to the rotation direction of the active cleaning brush head 2, thereby increasing the friction between the bristles and the surface to be cleaned.

[0048] Embodiment 1:

[0049] This embodiment provides a dynamic complementary, efficient and stable cleaning brush, and describes in detail its structure and method of use.

[0050] The cleaning brush comprises a brush body 1, an active cleaning brush head 2, and six auxiliary cleaning brush heads 3. The brush body 1 is designed to be a solid and lightweight material to ensure stability and durability for long-term use. The active cleaning brush head 2 is located at the center of the brush body 1, and the six auxiliary cleaning brush heads 3 are evenly distributed on the circumference of the active cleaning brush head 2 as the center.

[0051] A driving gear 4 is fixed to the active cleaning brush head 2, and a driven gear 5 meshing with the driving gear 4 is fixed to each auxiliary cleaning brush head 3. When the active cleaning brush head 2 rotates, the six auxiliary cleaning brush heads 3 rotate in a relative motion with the active cleaning brush head 2 through the meshing action of the gears. This design not only increases the contact area between the bristles and the surface to be cleaned, but also increases the friction through relative motion, thereby more effectively removing stains and impurities.

[0052] A rotating power output part is also fixed on the brush body 1. In this embodiment, a motor is used as a power source. The motor is linked with the active cleaning brush head 2 through a transmission part to provide a stable power output for the brush.

[0053] When in use, the user only needs to start the motor to drive the active cleaning brush head 2 to rotate. Due to the meshing of the gears, the six auxiliary cleaning brush heads 3 will also rotate in a relative motion. The user only needs to place the row of brushes on the surface to be cleaned, such as the floor, wall, etc., and through the relative movement of the active cleaning brush head 2 and the auxiliary cleaning brush head 3 and the friction between the bristles and the surface to be cleaned, stains and impurities can be removed dynamically and complementary.

[0054] It is worth mentioning that since the auxiliary cleaning brush head 3 rotates in the opposite direction to the active cleaning brush head 2, this design further increases the friction between the bristles and the surface to be cleaned, thereby improving the cleaning effect. At the same time, the synergy of multiple brush heads also ensures the stability and uniformity of cleaning.

[0055] In general, the dynamic complementary efficient and stable cleaning brush provided in this embodiment effectively solves the problems of slipping and incomplete cleaning that may occur in the cleaning process of the traditional cleaning brush through the unique gear meshing design and the coordinated working mode of multiple brush heads. It not only improves the cleaning effect, but also prolongs the service life of the bristles, while minimizing the damage to the surface to be cleaned. This cleaning brush has a wide range of application prospects in daily life and industrial production.

[0056] Embodiment 2:

[0057] This embodiment elaborates on the necessity of dynamic complementary design in efficient and stable cleaning of the brush and the technical effect that can be achieved.

[0058] In cleaning operations, the introduction of dynamic complementary design is crucial to improving the efficiency of cleaning brushes. Traditional single brush head or rotating brush wheel design often has problems of incomplete cleaning or low cleaning efficiency. For example, when cleaning marble floors, a single rotating brush head may cause the bristles to deviate from the cleaning trajectory due to centrifugal force, resulting in some areas not being effectively cleaned.

[0059] The dynamic complementary design in this embodiment effectively solves the above problem through the coordinated work of the active cleaning brush head 2 and multiple auxiliary cleaning brush heads 3. Specifically, when the active cleaning brush head 2 rotates, the auxiliary cleaning brush heads 3 rotate in the opposite direction through the meshing of the gears. This relative movement not only increases the frequency of contact between the bristles and the ground, but also enables the bristles to cover the surface to be cleaned more comprehensively.

[0060] For example, when cleaning a kitchen floor stained with oil, the oil is often difficult to be completely removed by a single brush head. However, the cleaning row brush with dynamic complementary design can rub and peel off the oil from different angles and directions due to the relative movement of multiple brush heads, thus greatly improving the cleaning effect.

[0061] For example, when cleaning the floor of a public facility, due to the large flow of people and the variety of stains on the floor, traditional cleaning methods are often difficult to deal with. The dynamic complementary cleaning brush in this embodiment can not only quickly remove large debris on the surface, but also deeply clean the tiny gaps on the floor through the synergy of multiple brush heads, achieving a comprehensive cleaning effect.

[0062] In addition, the dynamic complementary design also brings another important technical effect, which is to reduce the wear rate of the bristles. Due to the relative movement of multiple brush heads, the friction force shared by each brush head is more evenly distributed, thereby reducing the wear of individual bristles and extending the service life of the bristles.

[0063] In summary, the dynamic complementary design is of great necessity and superiority in efficient and stable cleaning of brushes. It can not only improve the cleaning effect, ensure the stability and uniformity of cleaning, but also extend the service life of the bristles and reduce maintenance costs. This design has shown great application potential and market prospects in cleaning operations in daily life and industrial production.

[0064] Embodiment 3:

[0065] Based on Example 1 and Example 2, this embodiment further describes the complete structure and scalability of the cleaning brush, especially the connection method between the brush body 1 and the handle and power supply, so that ordinary technicians in this field can accurately implement it, and demonstrate that it belongs to the expandable implementation part based on the technical solution of the utility model.

[0066] In this embodiment, the brush body 1 of the cleaning brush not only includes a brush cover shell 11 and an internal brush head mechanism, but also further includes a fixedly connected handle and a power supply device. The design of the handle allows the user to more conveniently operate and control the cleaning brush, thereby improving the convenience and comfort of use.

[0067] Specifically, the handle is fixed to the brush body 1 by a stable connection method, such as screws, buckles or other commonly used connection methods. Such a design ensures the firmness between the handle and the brush body 1 to prevent loosening or falling off during use.

[0068] The power supply device is used to provide the required power for the cleaning brush. In this embodiment, the power supply device can be a rechargeable battery, which is connected to the brush body 1 through a suitable interface. This design makes the cleaning brush free from the restriction of the power cord when in use, and is more flexible and convenient. At the same time, the design of the rechargeable battery also conforms to the concept of environmental protection and energy saving, reducing the cost of use.

[0069] For those skilled in the art, according to the technical solution of the utility model, it is easy to expand the implementation of the handle and the power supply device on the basis of the cleaning brush. These expansion parts do not involve complex technical innovations, but are based on the conventional application of the prior art. Therefore, these expansion implementation parts are completely within the scope of expansion based on the technical solution of the utility model.

[0070] Through the description of this embodiment, it can be clearly seen that the addition of the handle and the power supply device does not change the core technical solution of the cleaning brush, that is, the dynamic complementary brush head design. These extensions are only to improve the practicality and convenience of the cleaning brush, making it more in line with the needs of actual use.

[0071] In general, this embodiment further improves the design of the cleaning brush by adding a handle and a power supply device, making it closer to the actual application scenario. At the same time, these extended implementation parts also fully demonstrate the scalability and flexibility of the technical solution of the utility model.

[0072] Embodiment 4:

[0073] This embodiment aims to demonstrate the advantages of our technical solution by comparing the design of the traditional oppositely rotating brush wheels with the cleaning brush of this innovative structure.

[0074] The counter-rotating brush wheels installed on the front of traditional cleaning vehicles or cleaning robots can assist cleaning to a certain extent, but they have significant limitations. The centrifugal force generated when the brush wheel rotates often causes the bristles to deviate from the cleaning trajectory when rotating at high speed, reducing the cleaning effect. In addition, the design of the counter-rotating brush wheels has limited performance in terms of friction on the surface to be cleaned, making it difficult to achieve a deep cleaning effect. Especially when faced with difficult-to-remove dirt such as oil stains and stubborn stains, the cleaning ability of traditional brush wheels seems to be stretched.

[0075] In contrast, the cleaning brush row of this innovative structure adopts a dynamic complementary design. Not only does it effectively solve the problem of incomplete cleaning caused by centrifugal force of traditional brush wheels through the coordinated work of the active cleaning brush head and multiple auxiliary cleaning brush heads, but it also significantly improves the cleaning effect. Specifically, the active cleaning brush head and the auxiliary cleaning brush head are connected through gear meshing to achieve relative movement. During the cleaning process, multiple brush heads rub and peel off the surface to be cleaned from different angles and directions, greatly improving the thoroughness and efficiency of cleaning.

[0076] For example, when cleaning a kitchen floor stained with oil, the traditional brush wheel may need to be cleaned repeatedly to achieve the desired cleaning effect. However, the cleaning brush with this innovative structure can remove oil stains more quickly due to its dynamic complementary design characteristics, reduce the number of repeated cleanings, and improve cleaning efficiency.

[0077] For example, traditional brush wheels often have difficulty dealing with various stains on the ground of public facilities and dirt in tiny gaps. However, the cleaning row brush of this innovative structure can deeply clean these hard-to-reach areas through the synergistic effect of multiple brush heads, achieving comprehensive cleaning.

[0078] In addition, the cleaning row brush of the utility model has the characteristic of strong scalability. Compared with the traditional brush wheel, the structure can more easily add or replace the brush head to adapt to different cleaning needs and environments. This flexibility makes the cleaning row brush of the innovative structure have greater advantages in dealing with various complex cleaning scenarios.

[0079] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0080] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A dynamic complementary efficient and stable cleaning brush, comprising a brush body, characterized in that: It also includes an active cleaning brush head, an auxiliary cleaning brush head, a driving gear and a driven gear; The number of auxiliary cleaning brush heads is more than 3; An active cleaning brush head and more than three auxiliary cleaning brush heads are rotatably arranged on the brush body through a plurality of positioning grooves; On the brush body, more than three auxiliary cleaning brush heads are distributed around the active cleaning brush head; The active cleaning brush head is fixedly provided with a driving gear, and the auxiliary cleaning brush head is fixedly provided with a driven gear meshing and connected with the driving gear; The auxiliary cleaning brush heads, which are three or more in number, are respectively meshed and connected with the driving gear on the active cleaning brush head through the driven gear.

2. A dynamic complementary efficient and stable cleaning brush according to claim 1, characterized in that: The number of auxiliary cleaning brush heads is 6. On the brush body, the 6 auxiliary cleaning brush heads are evenly distributed on a circumference with the active cleaning brush head as the center.

3. A dynamic complementary efficient and stable cleaning brush according to claim 1, characterized in that: A rotational power output component is fixedly connected to the brush body, and the active cleaning brush head is linked and matched with the rotation shaft of the rotational power output component.

4. A dynamic complementary efficient and stable cleaning brush according to claim 3, characterized in that: The rotary power output member is a motor.

5. A dynamic complementary efficient and stable cleaning brush according to claim 1, characterized in that: The active cleaning brush head includes a main rotating shaft and a main cleaning brush, and the auxiliary cleaning brush head includes a driven rotating shaft and an auxiliary cleaning brush. The main rotating shaft and the driven rotating shaft are respectively rotatably connected to the brush body through multiple positioning grooves. The bottom end of the main rotating shaft is fixedly connected to the main cleaning brush head, and the bottom end of the driven rotating shaft is fixedly connected to the auxiliary cleaning brush head.

6. A dynamic complementary efficient and stable cleaning brush according to claim 1, characterized in that: The brush body includes a brush cover shell, and the brush cover shell is provided with avoidance holes for installing a main cleaning brush head and an auxiliary cleaning brush head respectively.

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