Electric brush handle and electric brush

Abstract

The utility model provides an electric brush handle and an electric brush, and the electric brush handle comprises a housing, a brush head seat, and a driving unit and a transmission unit which are in transmission connection. The shell is provided with a head part, a neck part and a handle part which are sequentially arranged, the shell comprises a shell body, and the shell body extends from the head part to the handle part and is integrally formed. The brush head seat is arranged on the shell body of the head part; the brush head seat is provided with a first connecting piece, and the first connecting piece is a ferromagnetic structural piece or a magnet and is magnetically connected with a brush head assembly with a cleaning part. The driving unit is arranged on the handle part, the transmission unit is arranged on the neck part and the head part, one end of the transmission unit is connected with the driving unit, and the other end is connected with the brush head seat to drive the brush head seat to move. The electric brush handle is high in strength and not prone to damage, the brush head assembly can be replaced on the head in a magnetic attraction mode, and different brush head assemblies can be conveniently matched for unclean cleaning areas.

Description

Technical Field

[0001] This application relates to the field of electric cleaning tools, and more specifically, to an electric brush handle and an electric brush. Background Technology

[0002] Small electric brushes are typically used for cleaning stovetops, kitchen countertops, tile grout, shoes, etc. Users usually hold the handle of the small electric brush and use it. Different brush heads are usually needed for different cleaning areas (e.g., larger brush heads for gas stove areas; smaller brush heads for tile grout areas; sponge cloths for easily damaged or worn areas). Existing electric brush handles typically use a brush head replacement method similar to electric toothbrushes, where the brush head is replaced at the neck of the handle. Inevitably, the neck of the handle consists of two detachable parts. However, when cleaning stubborn stains, this type of electric brush requires significant force from the user, which can easily lead to breakage at the detachable connection point in the neck. Utility Model Content

[0003] The purpose of this application is to provide an electric brush handle and an electric brush, which have high structural strength and are not easily damaged.

[0004] In a first aspect, embodiments of this application provide an electric brush handle, including a housing, a brush head holder, and a drive unit and a transmission unit connected by transmission. The housing has a head, a neck, and a handle portion arranged sequentially. The housing includes a shell body extending from the head to the handle portion, and the shell body is integrally formed. The brush head holder is disposed on the shell body of the head portion; the brush head holder is provided with a first connector, which is a ferromagnetic structural member or a magnet, to magnetically connect to a brush head assembly having a cleaning part. The drive unit is disposed on the handle portion, and the transmission unit is disposed on the neck and head portions, with one end of the transmission unit connected to the drive unit and the other end connected to the brush head holder to drive the brush head holder to move.

[0005] In the above technical solution, the brush head holder is installed on the shell body of the head, and the brush head assembly is connected to the brush head holder by magnetic attraction. The operation of assembling and disassembling the brush head assembly is relatively convenient, allowing for the replacement of the corresponding brush head assembly according to different cleaning needs. Furthermore, the shell body extends from the head to the handle and is a one-piece molded structure. Therefore, the shell body has a certain strength, allowing the user to grip the shell body at the handle. The shell body can withstand the considerable force applied by the user when cleaning stubborn stains, and the deformation of the shell body is minimal during the transmission of force from the user's hand to the shell body at the head, thus ensuring a good cleaning effect.

[0006] In conjunction with the first aspect, in some alternative embodiments, the housing further includes a cover; the side of the housing body facing away from the brush head seat of the neck is provided with a first opening for mounting the transmission unit; the cover closes to the first opening.

[0007] In the above technical solution, the first opening provided in the shell body allows the transmission unit to be installed inside the shell, enabling separate installation and removal of the transmission unit, which is convenient. By covering the first opening with a cover, the shape of the electric brush handle's shell is made more complete, making it less likely for dirt to enter the interior of the shell through the first opening.

[0008] In conjunction with the first aspect, in some alternative implementations, the cover extends from the head to the handle; and the cover is integrally formed.

[0009] In the above technical solution, the cover is integrally molded, which also provides a certain degree of strength. The cover extends from the head to the handle, making the electric brush handle more aesthetically pleasing and facilitating the installation of the cover.

[0010] In conjunction with the first aspect, in some alternative embodiments, the handle portion includes a first end near the neck and a second end away from the neck, a first opening and a cover both extending from the head to the first end, a circumferentially closed shell body at the second end, and a second opening at the end of the second end away from the head for mounting a drive unit into the handle portion through the second opening.

[0011] In the above technical solution, the first opening is used to install the transmission unit, and the second opening located on the handle is used to install the drive unit. By extending the first opening to the first end of the handle, it is convenient to connect the transmission unit and the drive unit. The second opening for installing the drive unit is located at the end away from the head, thus reducing the possibility of interference between the processes of installing the drive unit and installing the transmission unit. The first opening also extends to the head, facilitating the connection between the transmission unit and the brush head holder located on the head. The cover also extends from the head to the first end, better sealing the first opening to reduce the entry of contaminants into the housing through the first opening.

[0012] In conjunction with the first aspect, in some alternative embodiments, the cover extends from the head to the end of the handle portion opposite to the head, and the cover and the shell body form a first mounting cavity for accommodating the transmission unit and a second mounting cavity for accommodating the drive unit.

[0013] In the above technical solution, the first mounting cavity for accommodating the transmission unit and the second mounting cavity for accommodating the drive unit are both surrounded by a cover and a shell body, which can reduce the difficulty of processing and manufacturing the cover or shell body.

[0014] In conjunction with the first aspect, in some alternative embodiments, the cover is fastened to the shell body, and the outer surface of the cover smoothly transitions to the outer surface of the shell body; in the cross-section of the shell, the outer contour length of the cover is less than or equal to the outer contour length of the shell body.

[0015] In the above technical solution, the brush head holder for connecting the brush head assembly is located on the shell body, and the force applied by the user is mainly transmitted to the brush head assembly through the shell body. Since the outer contour length of the cover is not greater than the outer contour length of the shell body, the circumferential dimension of the shell body is relatively large. Therefore, the structural strength of the shell body is relatively high, which can withstand greater forces and is not easily damaged during user use.

[0016] In conjunction with the first aspect, in some alternative embodiments, the housing further includes a cover body connected to the head and integrally formed with the housing body; the cover body has opposing open ends and closed ends, and the cover body has a first receiving cavity inside; the closed end of the cover body is recessed into the interior of the housing body; a brush head seat is disposed in the first receiving cavity, and the open end of the cover body is used to insert the brush head seat into the first receiving cavity; a transmission unit is connected to the brush head seat from the closed end.

[0017] In the above technical solution, the cover is recessed into the interior of the shell body, and the brush head holder is disposed in the first receiving cavity inside the cover body, which can reduce the size of the head and therefore can be used for cleaning small spaces such as narrow crevices. The brush head holder can be inserted into the first receiving cavity through the open end of the cover body, making installation relatively convenient.

[0018] In conjunction with the first aspect, in some alternative embodiments, the side of the cover is located between the open end and the closed end; the transmission unit includes a drive shaft disposed at the neck and a gear set connected to one end of the drive shaft, the other end of the drive shaft being connected to a drive unit; the gear set includes a first bevel gear facing the side of the cover and a second bevel gear disposed facing the closed end of the cover, the first bevel gear being connected to the other end of the drive shaft, and the gear shaft of the second bevel gear passing through the closed end into the first receiving cavity to connect to the brush head seat.

[0019] In the above technical solution, the brush head holder is driven to rotate via gear transmission, resulting in less vibration and noise during use. Furthermore, the arrangement of the first gear facing the side of the cover and the second gear facing the closed end of the cover allows for a more compact structure within the head of the electric brush handle, thus reducing the size of the brush head area. This makes it suitable for cleaning narrow spaces such as crevices.

[0020] In conjunction with the first aspect, in some alternative embodiments, a pressure plate is also included, which is located inside the housing and connected to the housing body; both the first bevel gear and the second bevel gear are located between the pressure plate and the housing body, and the two ends of the gear shaft of the second bevel gear are respectively disposed on the pressure plate and the brush head seat.

[0021] In the above technical solution, a pressure plate can be used to fix the first bevel gear, the second bevel gear, and the transmission shaft. The cover plate does not serve to fix the transmission unit, thus making the structure of the cover plate simpler.

[0022] In conjunction with the first aspect, in some alternative implementations, the transmission unit is a cam mechanism, which includes a driving member and a driven member that are connected in a transmission manner. The driving member is connected to a drive unit to drive the driving member to rotate, and the driven member is connected to a brush head seat. The electric brush handle is configured such that the drive unit drives the driving member to rotate, which in turn drives the brush head seat to oscillate via the transmission unit.

[0023] In the above technical solution, a cam mechanism can be used to drive the brush head seat, thereby driving the brush head assembly to clean in a swinging manner.

[0024] In conjunction with the first aspect, in some alternative embodiments, the transmission unit includes a first transmission member and a second transmission member connected by a universal joint, the first transmission member being connected to the drive unit and disposed at the neck, and the second transmission member being disposed at the head and connected to the brush head seat to drive the brush head seat to move.

[0025] In the above technical solution, a universal joint transmission method can be used to drive the brush head seat, thereby driving the brush head assembly to move for cleaning.

[0026] Secondly, embodiments of this application provide an electric brush, including the electric brush handle provided in the first aspect, and a brush head assembly; the brush head assembly includes a mounting portion, a cleaning portion disposed on one side of the mounting portion, and a connecting portion disposed on the other side of the mounting portion; a second connecting member is disposed on the side of the connecting portion facing away from the cleaning portion. One of the first connecting member and the second connecting member is a magnet and the other is a ferromagnetic structural member, or both the first connecting member and the second connecting member are magnets.

[0027] In the above technical solution, the brush head assembly and the brush head base are connected by magnetic attraction, which makes it convenient to disassemble and assemble the brush head assembly, so that the corresponding brush head assembly can be replaced according to different cleaning needs.

[0028] In conjunction with the second aspect, in some embodiments, one of the first connecting member and the second connecting member is a ring-shaped structural member, and the other is a block-shaped structural member; or, both the first connecting member and the second connecting member are block-shaped structural members. When the connecting part is connected to the brush head holder, one side surface of the first connecting member and one side surface of the second connecting member are arranged opposite to each other.

[0029] In the above technical solution, the first and second connectors, whether block-shaped or ring-shaped, can be connected by magnetic attraction. When the brush head assembly is connected to the brush head base, the surfaces of the first and second connectors are arranged opposite each other, which increases the magnetic force between them, thus making the connection between the brush head assembly and the brush head base more reliable.

[0030] In conjunction with the second aspect, in some embodiments, the brush head holder includes a bell-shaped structure, the interior of which has a second receiving cavity and the lower part has an opening communicating with the second receiving cavity; the direction in which the connecting part is inserted into the second receiving cavity from the opening is defined as the insertion direction, and the cross-sectional profiles of the connecting part and the second receiving cavity perpendicular to the insertion direction are both polygonal, so that the brush head holder drives the brush head assembly to rotate.

[0031] In the above technical solution, the connecting part is inserted into the second receiving cavity through the opening to connect the first connecting member and the second connecting member, thereby realizing the connection between the brush head seat and the brush head assembly. This connection method allows for direct insertion of the brush head assembly into the second receiving cavity for connection, making operation convenient. Since the cross-sectional contours of the connecting part and the second receiving cavity are polygonal in the direction perpendicular to the insertion, the rotation between the brush head seat and the brush head assembly is more consistent when they rotate synchronously, resulting in smoother rotation of the brush head assembly. This reduces vibration during use of the electric brush and also prevents cleaning fluid from splashing during cleaning. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A schematic diagram of an electric brush provided in an embodiment of this application from a first-view perspective;

[0034] Figure 2 A schematic diagram of an electric brush provided in an embodiment of this application from a second perspective;

[0035] Figure 3 A cross-sectional view of the electric brush handle provided in an embodiment of this application;

[0036] Figure 4 A cross-sectional view of the housing provided in an embodiment of this application;

[0037] Figure 5 A schematic diagram of the shell body provided in an embodiment of this application;

[0038] Figure 6 A cross-sectional view of the head and neck of an electric brush handle provided in an embodiment of this application;

[0039] Figure 7 This is a schematic diagram of the electric brush handle after the cover has been removed, as provided in an embodiment of this application.

[0040] Figure 8 for Figure 7 A schematic diagram showing the electric brush handle after the pressure plate has been removed;

[0041] Figure 9 This is a schematic diagram of the head of an electric brush using cam drive in an embodiment of this application;

[0042] Figure 10 This is a cross-sectional view of an electric brush using cam drive in an embodiment of this application;

[0043] Figure 11 This is a cross-sectional view of an electric brush using universal joint drive in an embodiment of this application;

[0044] Figure 12 A cross-sectional view of the head and neck of the electric hand provided in an embodiment of this application;

[0045] Figure 13 A schematic diagram of a brush head assembly provided in one embodiment of this application;

[0046] Figure 14 A schematic diagram of a brush head assembly provided in another embodiment of this application;

[0047] Figure 15 This is a schematic diagram showing the cover and the shell body together forming the first mounting cavity and the second mounting cavity.

[0048] Icons: 100-Electric brush handle; 111-Head; 112-Neck; 113-Handle section; 120-Shell body; 121-First opening; 122-Second opening; 123-First mounting cavity; 124-Second mounting cavity; 130-Cover; 131-First receiving cavity; 132-Closed end; 133-Open end; 140-Brush head holder; 141-Second receiving cavity; 142-Bell-shaped structure; 143-First connector; 150-Transmission unit; 151 152-First bevel gear; 152-Second bevel gear; 1521-Gear shaft; 153-Drive shaft; 1541-First section; 1542-Second section; 155-Driven component; 1561-First transmission component; 1562-Second transmission component; 160-Drive unit; 171-Cover; 172-Pressure plate; 173-End cap; 180-Battery; 200-Brush head assembly; 210-Cleaning section; 220-Mounting section; 230-Connecting section; 231-Second connecting component. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0051] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0052] In the description of this application, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0053] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0054] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] This application provides an embodiment of an electric brush, such as... Figure 1 and Figure 2As shown, the present invention includes an electric brush handle 100 and a brush head assembly 200 mounted on the electric brush handle 100. The electric brush handle 100 provided in this application has high strength and is not easily damaged during use.

[0056] like Figures 1 to 3 As shown, the electric brush handle 100 includes a housing, a brush head holder 140, and a drive unit 160 and a transmission unit 150 connected by a transmission mechanism. The housing is the visible outer structure for the user to hold. The brush head holder 140 is used to magnetically and detachably connect the brush head assembly 200. One end of the transmission unit 150 is connected to the drive unit 160, and the other end is connected to the brush head holder 140, thereby driving the brush head holder 140 to move. When the electric brush provided in this application is working, the drive unit 160 drives the brush head holder 140 to move through the transmission unit 150, and the brush head assembly 200 moves together with the brush head holder 140 to perform cleaning.

[0057] like Figures 1 to 5 As shown, the outer casing has a head 111, a neck 112, and a handle 113 arranged sequentially. The head 111 connects to the brush head assembly 200, the handle 113 is for the user to hold, and the neck 112 connects the head 111 and the handle 113. The outer casing includes a casing body 120, and a brush head holder 140 is connected to the casing body 120 of the head 111. The brush head holder 140 is magnetically and detachably connected to the brush head assembly 200. The casing body 120 of the head 111 refers to the portion of the casing body 120 located at the position of the head 111, and the casing body 120 of the handle 113 refers to the portion of the casing body 120 located at the position of the handle 113. The magnetic detachable connection between the brush head assembly 200 and the brush head holder 140 makes it convenient to install and remove the brush head assembly 200. Different brush head assemblies 200 can be easily replaced at the head 111 of the electric brush handle 100 to meet different cleaning needs.

[0058] In this application, the shell body 120 extends from the head 111 to the handle portion 113 and is a one-piece molded structure. When the user uses the electric brush provided in this application, the applied force is transmitted from the shell body 120 of the handle portion 113 to the shell body 120 of the head 111, and then to the brush head assembly 200. Since the shell body 120 is one-piece molded, it has a certain strength and can withstand the large force applied by the user when cleaning stubborn stains. Furthermore, during the transmission of the force applied by the user to the handle portion 113 to the shell body 120 of the head 111, the deformation of the shell body 120 is small, which can better ensure the cleaning effect.

[0059] In this application, "the shell body 120 is integrally formed" does not mean that the shell body 120 of the head 111, the shell body 120 of the neck 112, and the shell body 120 of the handle 113 cannot have any connection points, but rather that there are no detachable connection points. Fixed connections (e.g., welding) are included within the scope of protection of this application.

[0060] Furthermore, such as Figures 3 to 5 As shown, the drive unit 160 is disposed on the handle portion 113, and the transmission unit 150 is disposed on the neck 112 and the head 111. The housing also includes a cover 171. A first opening 121 for mounting the transmission unit 150 is provided on the side of the housing body 120 of the neck 112 facing away from the brush head seat 140; the cover 171 closes to the first opening 121. The transmission unit 150 can be installed and removed through the first opening 121, making the installation and removal process more convenient. By closing the first opening 121 with the cover 171, dirt can be prevented from entering the neck 112 through the first opening 121.

[0061] In some embodiments, the length of the cover 171 is the same as the length of the first opening 121 in the axial direction of the electric brush handle 100 (i.e., from the head 111 of the housing towards the handle portion 113), that is, the size of the cover 171 is slightly larger than the size of the first opening 121. In other embodiments, such as Figure 4 and Figure 5 As shown, the cover 171 extends from the head 111 to the handle portion 113, and the size of the cover 171 is larger than the size of the first opening 121. Furthermore, the cover 171 is also a one-piece molded structure. Because the cover 171 extends from the head 111 to the handle portion 113 and has a larger size, being a one-piece molded structure provides it with sufficient strength, making it less prone to damage and easier to install. In other embodiments, the cover 171 may not be a one-piece molded structure; this application does not impose limitations on this.

[0062] In some embodiments, the handle portion 113 includes a first end near the neck 112 and a second end away from the neck 112, with both the first opening 121 and the cover 171 extending from the head 111 to the first end. Because the first opening 121 extends from the head 111 to the first end, it has a larger size in the direction from the head 111 to the handle portion 113, allowing for easier insertion of the transmission unit 150 into the neck 112 of the housing. The first opening 121 also extends to the head 111, facilitating connection of the transmission unit 150 to the brush head holder 140 disposed on the head 111. The cover 171 also extends from the head 111 to the first end, providing better sealing of the first opening 121 to reduce the entry of contaminants into the housing through the first opening 121.

[0063] In some implementations, such as Figure 4 and Figure 5 As shown, the shell body 120 at the second end is circumferentially closed, and the end of the second end away from the head 111 has a second opening 122 for mounting the drive unit 160 into the handle portion 113 through the second opening 122. The second opening 122 for mounting the drive unit 160 is located at the end away from the head 111, thus the second opening 122 is farther from the first opening 121, reducing the possibility of interference between the process of mounting the drive unit 160 and the process of mounting the transmission unit 150. Furthermore, an end cap 173 can be provided at the second opening 122 to cover it.

[0064] The housing has a first mounting cavity 123 for accommodating the transmission unit 150 and a second mounting cavity 124 for mounting the drive unit 160. Figure 4 and Figure 5 In the embodiment shown, the first mounting cavity 123 is connected to the first opening 121, and the second mounting cavity 124 is connected to the second opening 122. The first mounting cavity 123 is formed by the cover plate and the shell body 120, and the second mounting cavity 124 is formed by the end cap 173 and the shell body 120.

[0065] In other implementations, such as Figure 15 As shown, the cover 171 extends from the head 111 to the end of the handle portion 113 opposite to the head 111. The cover 171 and the shell body 120 form a first mounting cavity 123 for housing the transmission unit 150 and a second mounting cavity 124 for housing the drive unit 160. In this embodiment, both the first mounting cavity 123 and the second mounting cavity 124 are formed by the cover 171 and the shell body 120, and the size difference between the cover 171 and the shell is small. Furthermore, in this embodiment, the cover 171 and the shell body 120 are fastened together, and the outer surface of the cover 171 smoothly transitions to the outer surface of the shell body 120. In the cross-section of the shell, the outer contour length of the cover 171 is less than or equal to the outer contour length of the shell body 120, so that the size of the shell body 120 is relatively large. Therefore, the structural strength of the shell body 120 is relatively high, and it can withstand greater forces, making it less prone to damage during user use. Furthermore, the shell body 120 and the cover 171 can also be connected by snap-fit ​​or welding. It's not hard to understand, compared to Figure 4 The embodiment shown, in which the shell body 120 and the end cap 173 form the second mounting cavity 124, uses the cap 171 and the shell body 120 together to form the first mounting cavity 123 and the second mounting cavity 124, which can reduce the manufacturing difficulty of the shell and thus reduce the production cost.

[0066] In other embodiments, the cover 171 may be omitted. The shell body 120 of the neck 112 and the shell body 120 of the handle 113 are both circumferentially closed integral structures. The transmission unit 150 and the drive unit 160 are directly installed from the tail opening of the handle 113, or a part of the transmission unit 150 is directly installed from the shell body 120 of the head 111, and the drive unit 160 and another part of the transmission unit 150 are installed from the tail opening of the handle.

[0067] like Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, the outer shell further includes a cover 130, which is connected to the head 111 and integrally formed with the shell body 120; the cover 130 has an opening end 133 and a closing end 132, and the interior of the cover 130 has a first receiving cavity 131; the closing end 132 of the cover 130 is recessed towards the cover 171; a brush head holder 140 is disposed in the first receiving cavity 131, and the opening end 133 of the cover 130 is used to insert the brush head holder 140 into the first receiving cavity 131; a transmission unit 150 is connected to the brush head holder 140 from the closing end 132. Note that the closing end 132 of the cover 130 does not mean that the closing end 132 is completely closed without any holes, but rather that the closing end 132 cannot allow the brush head holder 140 to pass through. The brush head holder 140 can be inserted into the first receiving cavity 131 through the open end 133. Since the closed end 132 of the cover 130 is recessed towards the cover 171, and the brush head holder 140 is disposed in the first receiving cavity 131, the head of the electric brush handle 100 can be smaller in the direction of the rotation axis of the brush head holder 140, facilitating its insertion into narrow crevices for cleaning. The head of the electric brush handle 100 includes the head 111 of the outer shell. In other embodiments, the cover 130, the head 111, and the shell body 120 may not be integrally formed (including integral molding or welding), but connected by fastening, bonding, or other methods.

[0068] Furthermore, in Figures 3 to 6In the illustrated embodiment, the side of the cover 130 is located between the open end 133 and the closed end 132. The transmission unit 150 includes a transmission shaft 153 disposed on the neck 112 and a gear set connected to one end of the transmission shaft 153. One end of the transmission shaft 153 is connected to the drive unit 160. The gear set includes a first bevel gear 151 facing the side of the cover 130 and a second bevel gear 152 facing the closed end 132 of the cover 130. The first bevel gear 151 is connected to the other end of the transmission shaft 153, and the gear shaft 1521 of the second bevel gear 152 passes through the closed end 132 into the first receiving cavity 131 and connects to the brush head holder 140. When using the electric cleaning brush provided in this embodiment, the drive unit 160 drives the transmission shaft 153 to rotate, and the transmission shaft 153 then drives the brush head holder 140 to rotate via the gear set, thereby driving the brush head assembly 200 to rotate, achieving cleaning. The vibration and noise generated during use are relatively small. Figure 6 In the provided embodiment, the positions of the first bevel gear 151 and the second bevel gear 152 can be adapted to the structure of the cover 130, which can make the structure inside the head of the electric brush handle 100 more compact, thereby making the size of the head of the electric brush handle 100 smaller, which can be used to clean narrow gaps.

[0069] Furthermore, to facilitate the fixing of the transmission unit 150, a pressure plate 172 is provided for fixing the transmission unit 150 to the housing body 120. Fixing the transmission unit 150 means that the transmission unit 150 can move normally in the mounting position of the neck 112 without leaving the mounting position, so as to drive the brush head holder 140 to rotate; rather than fixing the transmission unit 150 relative to the housing body 120.

[0070] like Figure 3 , Figures 6 to 8 In the illustrated embodiment, the pressure plate 172 is located inside the outer casing and connected to the casing body 120. The first bevel gear 151, the second bevel gear 152, and the drive shaft 153 are all located between the pressure plate 172 and the casing body 120. The two ends of the gear shaft 1521 of the second bevel gear 152 are respectively disposed on the pressure plate 172 and the brush head holder 140. For example, one end of the gear shaft 1521 is rotatable relative to the pressure plate 172, and the other end is fixedly connected to the brush head holder 140, so that the second bevel gear 152 drives the brush head holder 140 to rotate. Furthermore, the cover 171 is disposed on the side of the pressure plate 172 facing away from the transmission unit 150.

[0071] In this application, the drive unit 160 includes a motor and a reduction gear assembly. The output shaft of the motor is connected to the input shaft of the reduction gear assembly, and the output shaft of the reduction gear assembly is connected to one end of the transmission shaft 153. The other end of the transmission shaft 153 is connected to a first bevel gear 151, which meshes with a second bevel gear 152. The gear shaft of the second bevel gear 152 is connected to the brush head holder. Optionally, a battery 180 and a circuit board may also be installed in the second mounting cavity 124 to provide power to the motor and control the rotation of the motor via the circuit board.

[0072] In some other embodiments, the transmission unit 150 may also drive the brush head holder 140 to rotate by means of cam drive or universal joint drive.

[0073] In this application, a cam mechanism refers to a kinematic pair between two kinematic mechanisms, wherein the driving element is a cam, and the driven element 155 is driven by the driving element; that is, the kinematic pair between the driving element and the driven element 155 is a cam pair, and the driving element and the driven element 155 constitute a cam mechanism. In some embodiments, the transmission unit 150 is a cam mechanism, which includes a driving element and a driven element 155 that are driven by the driving element. The driving element is connected to the drive unit 160 to drive the driving element to rotate, and the driven element 155 is connected to the brush head holder 140. The electric brush handle 100 is configured such that the drive unit 160 drives the driving element to rotate, and then drives the brush head holder 140 to swing through the transmission unit 150.

[0074] like Figure 9 and Figure 10 As shown, the transmission unit 150 uses a cam drive. The driving element is connected to the drive unit 160, and the driven element 155 is connected to the brush head holder 140. The driving element is a rod-shaped structure, specifically including a first segment 1541 and a second segment 1542 connected to each other. The axis of the first segment 1541 is parallel to but not collinear with the axis of the second segment 1542. The first segment 1541 is connected to the drive unit 160 so that the first segment 1541 can rotate around its own axis, while simultaneously driving the second segment 1542 to perform circular motion around the axis of the first segment 1541. The driven member 155 has a notch, with a first surface and a second surface on either side of the notch. The second segment 1542 of the driving member is located within the notch, and during the continuous rotation of the driving member, the second segment 1542 alternately forms a cam pair with the first surface and the second surface. The driving member and the driven member 155, through the cam pair between the second segment 1542 and the first surface, cause the brush head seat 140 to rotate clockwise by a certain angle, and the driving member and the driven member 155, through the cam pair between the second segment 1542 and the second surface, cause the brush head seat 140 to rotate counterclockwise by a certain distance. The cam mechanism enables the brush head seat 140 to oscillate, that is, the brush head seat 140 reciprocates, so that the movement of the brush head assembly 200 during the cleaning process is also oscillating.

[0075] like Figure 11 As shown, the transmission unit 150 employs a universal joint drive. The transmission unit 150 includes a first transmission component 1561 and a second transmission component 1562 connected via a universal joint. The first transmission component 1561 is connected to the drive unit 160 and disposed at the neck 112, while the second transmission component 1562 is disposed at the head 111 and connected to the brush head holder 140 to drive the brush head holder 140 to move. When the drive unit 160 is operating, the first transmission component 1561 moves around its own axis, and the universal joint structure causes the second transmission component 1562 to also move around its own axis, thereby driving the brush head holder 140 to rotate. The use of a universal joint in the transmission unit 150 reduces noise during operation of the electric brush. Furthermore, in Figure 11 In the embodiment shown, the second transmission component 1562 and the brush head holder 140 are integrally formed. In other embodiments, the second transmission component 1562 and the brush head holder 140 may be manufactured separately and then connected.

[0076] In some embodiments, the brush head holder 140 and the brush head assembly 200 are magnetically connected. For example, the brush head holder 140 is provided with a first connector 143, which is a ferromagnetic structural member or a magnet, to magnetically connect the brush head assembly 200 having the cleaning part 210.

[0077] like Figures 12 to 14 As shown, the brush head assembly 200 includes a mounting portion 220, a cleaning portion 210 disposed on one side of the mounting portion 220, and a connecting portion 230 disposed on the other side of the mounting portion 220; the connecting portion 230 is detachably connected to the brush head holder 140. Because the connecting portion 230 is detachably connected to the brush head holder 140, the brush head assembly 200 can be easily disassembled and replaced to adapt to different cleaning scenarios.

[0078] exist Figures 12 to 14 In the illustrated embodiment, a first connector 143 is provided inside the brush head holder 140, and a second connector 231 is provided on the side of the connecting portion 230 facing away from the cleaning portion 210. One of the first connector 143 and the second connector 231 is a magnet, and the other is a ferromagnetic structural component, or both the first connector 143 and the second connector 231 are magnets. The magnetic force between the first connector 143 and the second connector 231 achieves a magnetic connection between the connecting portion 230 of the brush head assembly 200 and the brush head holder 140. This magnetic connection allows for a detachable connection, making it easier to assemble and disassemble the brush head holder 140, facilitating the removal and replacement of the brush head assembly 200 to adapt to different cleaning scenarios.

[0079] In the embodiment where the brush head holder 140 and the brush head assembly 200 are connected by magnetic force between the first connector 143 and the second connector 231, the first connector 143 and the second connector 231 can be block-shaped structural components, such as the first connector 143 being a block magnet and the second connector 231 being an iron block; or both can be ring-shaped structural components; or one can be a ring-shaped structural component and the other a block-shaped structural component. To make the magnetic connection between the brush head holder 140 and the brush head assembly 200 more reliable, such as... Figure 12 As shown, when the connecting part 230 is connected to the brush head holder 140, one side surface of the first connecting member 143 is arranged opposite to one side surface of the second connecting member 231 so that the magnetic force between the first connecting member 143 and the second connecting member 231 is greater.

[0080] Furthermore, in some implementations, such as Figure 6 and Figure 12 As shown, the brush head holder 140 includes a bell-shaped structure 142. The bell-shaped structure 142 has a second receiving cavity 141 inside and an opening at its lower part communicating with the second receiving cavity 141. A first connector 143 is disposed within the second receiving cavity 141. The direction in which the connector 230 inserts into the second receiving cavity 141 from the opening is defined as the insertion direction (i.e.,...). Figure 6 (In the direction indicated by the middle arrow A), the connecting portion 230 and the second receiving cavity 141 both have polygonal cross-sectional profiles perpendicular to the insertion direction, so that the brush head holder 140 can transmit torque to the connecting portion 230 of the brush head assembly 200, causing the brush head holder 140 to drive the brush head assembly 200 to rotate. Specifically, the cross-section can be quadrilateral or hexagonal. Because the connecting portion 230 and the second receiving cavity 141 have polygonal cross-sectional profiles perpendicular to the insertion direction, when the brush head holder 140 and the brush head assembly 200 rotate synchronously, the rotation between the brush head holder 140 and the brush head assembly 200 is more consistent, and the rotation of the brush head assembly 200 is more stable. This reduces the vibration during the use of the electric brush and also prevents the cleaning fluid from splashing during cleaning.

[0081] The electric brush provided in this application embodiment includes an electric brush handle 100 and a brush head assembly 200. The electric brush handle 100 includes a housing, a brush head holder 140, and a drive unit 160 and a transmission unit 150 connected by a drive mechanism. The brush head holder 140 is disposed on the housing body 120 of the head 111 and is used to connect to the brush head assembly 200. The drive unit 160 is disposed on the handle portion 113, and the transmission unit 150 is disposed on the neck 112 and the head 111. One end of the transmission unit 150 is connected to the drive unit 160, and the other end is connected to the brush head holder 140 to drive the brush head holder 140 to move. The housing has a head 111, a neck 112, and a handle portion 113 arranged sequentially. The housing includes a housing body 120, a cover 130, and a cap 171. The housing body 120 extends from the head 111 to the handle portion 113 and is integrally formed to increase the strength of the electric brush handle 100. The cover 130 is connected to the head 111 and integrally formed with the shell body 120; the cover 130 has an opening end 133 and a closed end 132, and the cover 130 has a first receiving cavity 131 inside; the closed end 132 of the cover 130 is recessed into the shell body 120; the brush head seat 140 is disposed in the first receiving cavity 131, and the opening end 133 of the cover 130 is used to insert the brush head seat 140 into the first receiving cavity 131; the transmission unit 150 is connected to the brush head seat 140 from the closed end 132. The side of the shell body 120 of the neck 112 facing away from the brush head seat 140 is provided with a first opening 121 for installing the transmission unit 150; the cover 171 covers the first opening 121. The handle portion 113 includes a first end near the neck 112 and a second end away from the neck 112. A first opening 121 and a cover 171 both extend from the head 111 to the first end. The shell body 120 of the second end is circumferentially closed. The end of the second end away from the head 111 has a second opening 122 for mounting the drive unit 160 into the handle portion 113 through the second opening 122. The side of the cover 130 is located between the open end 133 and the closed end 132. The transmission unit 150 includes a transmission shaft 153 disposed on the neck 112 and a gear set connected to one end of the transmission shaft 153. One end of the transmission shaft 153 is connected to the drive unit 160. The gear set includes a first bevel gear 151 facing the side of the cover 130 and a second bevel gear 152 facing the closed end 132 of the cover 130. The first bevel gear 151 is connected to the other end of the transmission shaft 153, and the gear shaft 1521 of the second bevel gear 152 passes through the closed end 132 into the first receiving cavity 131 and connects to the brush head holder 140. The brush head holder 140 is provided with a first connector 143. The brush head assembly 200 includes a mounting part 220, a cleaning part 210 disposed on one side of the mounting part 220, and a connecting part 230 disposed on the other side of the mounting part 220. The connecting part 230 is provided with a second connector 231. Both the first connector 143 and the second connector 231 are magnets, so that the brush head assembly 200 can be replaced by magnetic detachable connection.

[0082] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An electric brush handle, characterized in that, include: The outer shell has a head, a neck and a handle portion arranged sequentially. The outer shell includes a shell body that extends from the head to the handle portion and is integrally formed. A brush head holder is disposed on the shell body of the head; the brush head holder is provided with a first connector, which is a ferromagnetic structural component or a magnet, to magnetically connect the brush head assembly with the cleaning part. A drive unit and a transmission unit are connected by a transmission mechanism; the drive unit is disposed on the handle portion, and the transmission unit is disposed on the neck and the head portion, with one end of the transmission unit connected to the drive unit and the other end connected to the brush head holder to drive the brush head holder to move.

2. The electric brush handle according to claim 1, characterized in that, The outer casing also includes a cover; a first opening for mounting the transmission unit is provided on the side of the casing body of the neck facing away from the brush head seat; the cover closes to the first opening.

3. The electric brush handle according to claim 2, characterized in that, The cover extends from the head to the handle; and the cover is integrally formed.

4. The electric brush handle according to claim 3, characterized in that, The handle portion includes a first end near the neck and a second end away from the neck. The first opening and the cover both extend from the head to the first end. The shell body of the second end is circumferentially closed. The end of the second end away from the head has a second opening for mounting the drive unit into the handle portion through the second opening.

5. The electric brush handle according to claim 3, characterized in that, The cover extends from the head to the end of the handle portion opposite to the head, and the cover and the shell body form a first mounting cavity for accommodating the transmission unit and a second mounting cavity for accommodating the drive unit.

6. The electric brush handle according to claim 5, characterized in that, The cover is fastened to the shell body, and the outer surface of the cover smoothly transitions to the outer surface of the shell body; in the cross-section of the shell, the outer contour length of the cover is less than or equal to the outer contour length of the shell body.

7. The electric brush handle according to any one of claims 1 to 6, characterized in that, The outer shell also includes a cover, which is connected to the head and integrally formed with the shell body; the cover has an open end and a closed end, and the cover has a first receiving cavity inside; the closed end of the cover is recessed into the interior of the shell body; the brush head seat is disposed in the first receiving cavity, and the open end of the cover is used to insert the brush head seat into the first receiving cavity; the transmission unit is connected to the brush head seat from the closed end.

8. The electric brush handle according to claim 7, characterized in that, The side of the cover is located between the open end and the closed end; the transmission unit includes a transmission shaft disposed on the neck and a gear set connected to one end of the transmission shaft, one end of the transmission shaft being connected to the drive unit; the gear set includes a first bevel gear facing the side of the cover and a second bevel gear disposed facing the closed end of the cover, the first bevel gear being connected to the other end of the transmission shaft, and the gear shaft of the second bevel gear passing through the closed end into the first receiving cavity and connecting to the brush head seat.

9. The electric brush handle according to claim 8, characterized in that, It also includes a pressure plate, which is located inside the housing and connected to the housing body; the first bevel gear and the second bevel gear are both located between the pressure plate and the housing body, and the two ends of the gear shaft of the second bevel gear are respectively disposed on the pressure plate and the brush head seat.

10. The electric brush handle according to any one of claims 1 to 6, characterized in that, The transmission unit is a cam mechanism, which includes a driving member and a driven member that are connected in a transmission manner. The driving member is connected to the drive unit to drive the driving member to rotate, and the driven member is connected to the brush head seat. The electric brush handle is configured such that the drive unit drives the driving member to rotate, and then drives the brush head seat to swing through the transmission unit.

11. The electric brush handle according to any one of claims 1 to 6, characterized in that, The transmission unit includes a first transmission component and a second transmission component connected by a universal joint. The first transmission component is connected to the drive unit and disposed in the neck, and the second transmission component is disposed in the head and connected to the brush head seat to drive the brush head seat to move.

12. An electric brush, characterized in that, The invention includes an electric brush handle as described in any one of claims 1-11, and a brush head assembly; the brush head assembly includes a mounting portion, a cleaning portion disposed on one side of the mounting portion, and a connecting portion disposed on the other side of the mounting portion; a second connector is provided on the side of the connecting portion facing away from the cleaning portion; One of the first connector and the second connector is a magnet and the other is a ferromagnetic structural component, or both the first connector and the second connector are magnets.

13. The electric brush according to claim 12, characterized in that, One of the first connector and the second connector is a ring-shaped structural component, and the other is a block-shaped structural component; or, both the first connector and the second connector are block-shaped structural components. When the connecting part is connected to the brush head holder, one side surface of the first connecting member is disposed opposite to one side surface of the second connecting member.

14. The electric brush according to claim 13, characterized in that, The brush head holder includes a bell-shaped structure, the interior of which has a second receiving cavity and the lower part has an opening communicating with the second receiving cavity; the direction in which the connecting part is inserted into the second receiving cavity from the opening is defined as the insertion direction, and the cross-sectional profiles of the connecting part and the second receiving cavity perpendicular to the insertion direction are both polygonal, so that the brush head holder drives the brush head assembly to rotate.

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