Electric toothbrush head and electric toothbrush

Abstract

The embodiment of the utility model provides an electric toothbrush head and an electric toothbrush. The electric toothbrush head comprises a rod body, a brush body connected with the rod body, bristles and a first wrapping piece. The brush body comprises a bristle planting part, the bristle planting part comprises a bristle planting surface, and bristle planting holes are formed in the bristle planting surface. And the bristles are arranged in the bristle planting holes and extend out of the bristle planting surface. The first wrapping piece wraps the whole area of the side portion of the peripheral wall of the rod body, and the hardness of the first wrapping piece is smaller than that of the rod body. According to the electric toothbrush head and the electric toothbrush, the first wrapping piece wraps the whole area of the side portion of the peripheral wall of the rod body, the hardness of the first wrapping piece is smaller than that of the rod body, in other words, the material of the first wrapping piece is soft, and elastic deformation is easier to occur compared with the rod body, and therefore when a user changes the tooth brushing position, the tooth brushing effect is better, and the user experience is improved. The first wrapping piece can play a good role in vibration buffering, the rod body is prevented from directly colliding with the oral cavity, and therefore the oral cavity of a user can be effectively protected.

Description

Technical Field

[0001] The present application relates to the technical field of oral care, and in particular to an electric toothbrush head and an electric toothbrush. Background Art

[0002] An electric toothbrush is a device used to clean the oral cavity. In the related art, the electric toothbrush head of an electric toothbrush can vibrate at a high frequency to drive the bristles to vibrate and clean the teeth. However, the vibration of the electric toothbrush head not only drives the bristles to vibrate and clean the teeth, but also drives the rod body to vibrate. When the user changes the brushing position, the vibration of the rod body is easy to bump and damage the oral cavity. Utility Model Content

[0003] In view of the above problems, the present application provides an electric toothbrush head and an electric toothbrush, which can avoid the problem of the rod vibrating and causing damage to the oral cavity when the user changes the brushing position.

[0004] The electric toothbrush head of the embodiment of the present application includes a rod body, a brush body connected to the rod body, bristles and a first covering member. The brush body includes a hair-planting portion, the hair-planting portion includes a hair-planting surface, and the hair-planting surface is provided with hair-planting holes. The bristles are arranged in the hair-planting holes and extend from the hair-planting surface. The first covering member covers the entire area of ​​the side of the peripheral wall of the rod body, and the hardness of the first covering member is less than the hardness of the rod body.

[0005] In the electric toothbrush head of the embodiment of the present application, the first covering component covers the entire area of ​​the side of the peripheral wall of the rod body, and the hardness of the first covering component is less than the hardness of the rod body, that is, the material of the first covering component is softer and is easier to undergo elastic deformation than the rod body. In this way, when the user changes the brushing position, the first covering component can have a better vibration-absorbing effect and prevent the rod body from directly colliding with the oral cavity, thereby effectively protecting the user's oral cavity.

[0006] In some embodiments, the rod body is an integral structure, and the first covering member is soft rubber.

[0007] Among them, when the first covering piece is soft rubber, the first covering piece can be arranged on the entire area of ​​the side of the peripheral wall of the rod body in a rubber-wrapped manner. On the one hand, this can prevent the rod body from vibrating and bumping to damage the oral cavity, thereby effectively protecting the user's oral cavity; on the other hand, it can increase the contact area between the first covering piece and the rod body, thereby improving the stability of the connection between the first covering piece and the rod body and reducing the possibility of the first covering piece falling off the rod body.

[0008] In some embodiments, the thickness of the first covering member is the same everywhere. In this way, the first covering member can provide the same vibration-absorbing effect to each position of the rod body, preventing the rod body from vibrating and bumping into the oral cavity, thereby effectively protecting the user's oral cavity.

[0009] In some embodiments, the thickness of the first covering member changes with the position of the rod body, thereby further improving the vibration damping effect of the first covering member and better protecting the user's oral cavity.

[0010] In some embodiments, the thickness of the first covering member gradually increases from the rod body to the brush body. Thus, the thickness of the first covering member corresponding to the end of the rod body closest to the brush body is the largest, thereby improving the vibration damping effect of the first covering member, preventing the rod body from vibrating and bumping into the oral cavity, and effectively protecting the user's oral cavity.

[0011] In some embodiments, the thickness of the first covering member near the brush body is greater than the thickness of the first covering member far from the brush body. As a result, the thickness of the first covering member corresponding to the end of the rod body closest to the brush body is greater, thereby improving the vibration damping effect of the first covering member, preventing the rod body from vibrating and bumping into the oral cavity, and effectively protecting the user's oral cavity.

[0012] In some embodiments, the electric toothbrush head further includes a second covering member, which covers the brush body and at least avoids the bristles, and the hardness of the second covering member is less than the hardness of the brush body.

[0013] Among them, since the hardness of the second covering member is less than that of the brush body, the second covering member is easy to produce elastic deformation when it contacts the oral cavity, so that it can have a better vibration reduction effect, and thus can effectively protect the user's oral cavity. In addition, since the brush body is made of hard material, the brush body is also easy to produce a large noise when the brush body vibrates at a high frequency. Therefore, the provision of the second covering member can also make the vibration of the brush body softer and reduce the noise generated by the vibration of the brush body.

[0014] In some embodiments, the second covering member and the first covering member are an integral structure.

[0015] In some embodiments, the second covering member and the first covering member are separate structures.

[0016] In some embodiments, the hair-planting portion further includes a back surface opposite to the hair-planting surface and a peripheral side surface connecting the hair-planting surface and the back surface; the second covering member covers at least one of the hair-planting surface, the back surface and the peripheral side surface. This can reduce the possibility of direct collision between the brush body and the oral cavity during brushing, thereby effectively protecting the user's oral cavity.

[0017] In some embodiments, the number of the hair-planting portion is one, which can facilitate the installation of the brush body on the rod body, reduce the assembly steps of the electric toothbrush head, and improve the assembly efficiency of the electric toothbrush head.

[0018] In some embodiments, there are at least two hair-implanted portions, and the brush body further includes at least one connecting portion. In the length direction of the rod body, at least two of the hair-implanted portions are arranged in sequence at intervals, and the connecting portion is arranged between two adjacent hair-implanted portions and connects two adjacent hair-implanted portions. The width of the hair-implanted portion is greater than the width of the connecting portion; and / or the thickness of the hair-implanted portion is greater than the thickness of the connecting portion; the second covering member also covers at least a partial area of ​​the connecting portion.

[0019] Among them, since the width of the hair-implanted portion is greater than the width of the connecting portion; and / or the thickness of the hair-implanted portion is greater than the thickness of the connecting portion, the connecting portion is more likely to deform when subjected to force, that is, when the bristles and / or the hair-implanted portion are subjected to external force, the connecting portion will bend and deform under the action of the external force, thereby causing the hair-implanted portions connected to the connecting portion to move away from or approach each other, that is, the distance between adjacent hair-implanted portions changes, which can drive the brush body to bend and deform. At this time, the bristles can fit better with the teeth, thereby improving the cleaning effect of the electric toothbrush.

[0020] In addition, the second covering also covers at least a partial area of ​​the connecting portion, which can reduce the possibility of the connecting portion directly colliding with the oral cavity and causing oral damage during the user's brushing process, thereby effectively protecting the user's oral cavity.

[0021] In some embodiments, the second covering member fills the gap between two adjacent hair-planting parts. This can prevent dirt (such as sewage or dental plaque, etc.) from being deposited in the gap between two adjacent hair-planting parts, thereby ensuring the cleanliness of the electric toothbrush head and improving the cleaning effect of the electric toothbrush; on the other hand, it can enhance the vibration damping effect of the second covering member on the brush body, further reducing the possibility of oral damage caused by collision between the brush body and the oral cavity.

[0022] In some embodiments, the connection portion includes a front side on the same side as the hair-planting surface, a rear side opposite to the front side, and a side side connecting the front side and the rear side; the second covering member covers at least one of the front side, the rear side, and the side side. This can further increase the stability of the connection between the second covering member and the brush body, and prevent the second covering member from falling off the brush body under high-frequency vibration.

[0023] In some embodiments, the connecting portion includes a front side on the same side as the hair-planting surface, a back side opposite to the front side, and a side surface connecting the front side and the back side; the second covering member covers the back side and the back side, and the thickness of the second covering member on the back side is greater than the thickness of the second covering member on the back side. As a result, the second covering member is heavier, thereby further improving the vibration reduction effect of the second covering member on the brush body.

[0024] In some embodiments, in the width direction of the brush body, the second covering member includes a first portion, a second portion, and a third portion that are connected in sequence, the second portion intersects with the width mid-plane of the brush body, the second portion is further away from the hair-planting surface than the first portion, and the second portion is further away from the hair-planting surface than the third portion. This can make the thickness of the second portion larger, thereby improving the vibration reduction effect of the second portion, preventing the area on the brush body corresponding to the second portion from vibrating too much and causing damage to the oral cavity, thereby effectively protecting the user's oral cavity.

[0025] In some embodiments, the second portion is smoothly connected to the first portion, and the second portion is smoothly connected to the third portion, thereby preventing the uneven shape of the second covering member from bumping or scratching the oral cavity.

[0026] In some embodiments, the rod body is provided with an inner cavity, and a connecting piece is provided in the inner cavity. The electric toothbrush head further comprises a third covering piece, the third covering piece covers the side wall of the inner cavity and is located between the side wall of the inner cavity and the connecting piece, and the hardness of the third covering piece is less than the hardness of the rod body.

[0027] The provision of the third covering part can, on the one hand, cushion the vibration transmitted from the connecting part to the rod body, thereby making the vibration of the rod body softer and further achieving a protective effect on the oral cavity; on the other hand, it can achieve an interference connection with the connecting part, thereby improving the connection strength of the connecting part on the rod body and preventing the connecting part from falling off from the rod body during the operation of the electric toothbrush, thereby improving the stability and reliability of the electric toothbrush.

[0028] In some embodiments, the electric toothbrush head further includes a fourth covering member, wherein the fourth covering member covers the bottom of the peripheral wall of the rod body, and the third covering member is connected to the first covering member via the fourth covering member.

[0029] The electric toothbrush of the embodiment of the present application comprises the electric toothbrush head and the brush handle of any one of the above embodiments, and the electric toothbrush head is mounted on the brush handle.

[0030] In the electric toothbrush of the embodiment of the present application, the first covering component covers the entire area of ​​the side of the peripheral wall of the rod body, and the hardness of the first covering component is less than the hardness of the rod body, that is, the material of the first covering component is softer and is easier to undergo elastic deformation than the rod body. In this way, when the user changes the brushing position, the first covering component can have a better vibration-absorbing effect and prevent the rod body from directly colliding with the oral cavity, thereby effectively protecting the user's oral cavity.

[0031] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0033] Figure 1 is a schematic diagram of the three-dimensional structure of an electric toothbrush according to some embodiments of the present application;

[0034] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of an electric toothbrush head in the electric toothbrush shown;

[0035] Figure 3 yes Figure 2 The three-dimensional exploded schematic diagram of the electric toothbrush head shown;

[0036] Figure 4 yes Figure 2 A three-dimensional schematic diagram of a partial structure of an electric toothbrush head is shown;

[0037] Figure 5 yes Figure 2 A schematic plan view of an electric toothbrush head is shown;

[0038] Figure 6 yes Figure 2 A schematic cross-sectional view of an electric toothbrush head shown;

[0039] Figure 7 yes Figure 6 The enlarged schematic diagram shown at VII in the middle.

[0040] Description of main component symbols:

[0041] Electric toothbrush 1000;

[0042] Electric toothbrush head 100; brush handle 200; motor 300;

[0043] The rod body 10, the peripheral wall 11, the side portion 111, the bottom portion 113, and the inner cavity 13;

[0044] Brush body 20, hair implantation portion 21, hair implantation surface 211, hair implantation holes 2111, back surface 213, peripheral side surface 215, connecting portion 23, front surface 231, back surface 233, side surface 235;

[0045] Bristles 30 ; a first covering member 40 ; a second covering member 50 , a first portion 51 , a second portion 53 , and a third portion 55 ; a connecting member 60 ; a third covering member 70 ; and a fourth covering member 80 . DETAILED DESCRIPTION

[0046] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present application, and cannot be understood as limiting the embodiments of the present application.

[0047] In the description of the present application, it should be understood that the terms "thickness", "upper", "top", "bottom", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0048] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. In an example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection, or they can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements.

[0049] An electric toothbrush is a device used to clean the oral cavity. In the related art, the electric toothbrush head of an electric toothbrush can vibrate at a high frequency to drive the bristles to vibrate and clean the teeth. However, the vibration of the electric toothbrush head not only drives the bristles to vibrate and clean the teeth, but also drives the rod body to vibrate. When the user changes the brushing position, the vibration of the rod body is easy to bump and damage the oral cavity. To solve this problem, please refer to Figure 1 , an embodiment of the present application provides an electric toothbrush head 100 and an electric toothbrush 1000 .

[0050] See also Figure 1The electric toothbrush 1000 of the embodiment of the present application includes an electric toothbrush head 100 and a brush handle 200, and the electric toothbrush head 100 is installed on the brush handle 200. Among them, since the electric toothbrush 1000 in the present embodiment includes the electric toothbrush head 100, it can be understood that the electric toothbrush 1000 includes at least the same beneficial effects as the electric toothbrush head 100, so the beneficial effects of the electric toothbrush 1000 refer to the beneficial effects of the electric toothbrush head 100 described below.

[0051] Furthermore, in some embodiments, the electric toothbrush 1000 may further include a motor 300, which is disposed on the brush handle 200, and the output shaft of the motor 300 extends out of the brush handle 200 to be connected to the electric toothbrush head 100. When the motor 300 operates stably, the motor 300 can drive the electric toothbrush head 100 to vibrate at a high frequency, so that the electric toothbrush 1000 can clean the oral cavity through the electric toothbrush head 100 vibrating at a high frequency.

[0052] It should be noted that, in some embodiments, the motor 300 includes but is not limited to a linear motor, a rotary motor or a bidirectional motor, etc. Among them, the output shaft of the motor 300 can be connected to the electric toothbrush head 100 in a detachable manner, so that on the one hand, it is convenient to replace the electric toothbrush head 100 of different models or different materials; on the other hand, when the electric toothbrush head 100 is used for a long enough time and the cleaning effect is reduced, it is convenient to replace a new electric toothbrush head 100, thereby ensuring the cleaning effect of the electric toothbrush 1000.

[0053] See also Figures 1 to 3 The electric toothbrush head 100 of the embodiment of the present application includes a rod body 10, a brush body 20 connected to the rod body 10, bristles 30 and a first covering member 40. The brush body 20 includes a hair-planting portion 21, and the hair-planting portion 21 includes a hair-planting surface 211, and the hair-planting surface 211 is provided with hair-planting holes 2111. The bristles 30 are arranged in the hair-planting holes 2111 and extend from the hair-planting surface 211. The first covering member 40 covers the entire area of ​​the side portion 111 of the peripheral wall 11 of the rod body 10, and the hardness of the first covering member 40 is less than the hardness of the rod body 10.

[0054] Among them, one end of the rod body 10 is detachably connected to the output shaft of the motor 300, and the other end is connected to the brush body 20. The rod body 10 is roughly in the shape of a long strip, so that the rod body 10 can be easily inserted into the oral cavity, so that the bristles 30 on the brush body 20 can touch the various parts of the oral cavity that need to be cleaned, thereby ensuring the cleaning effect of the electric toothbrush 1000. In the embodiment of the present application, when the motor 300 is running stably, the rod body 10 can transmit the vibration of the motor 300 to the brush body 20, and the brush body 20 then transmits the vibration to the bristles 30. The bristles 30 can clean the parts of the oral cavity that need to be cleaned during the vibration process. The parts of the oral cavity that need to be cleaned may include the tooth surface, tooth gaps and gums of the teeth. It should be noted that in some embodiments, the rod body 10 is an integrated structure. The rod body 10 can be made of a hard material, such as plastics such as PP, ABS or PBT.

[0055] The brush body 20 is a structure for carrying the bristles 30. The brush body 20 is connected to the rod body 10, and can transmit the vibration of the rod body 10 to the bristles 30, so that the bristles 30 vibrate to clean the parts of the oral cavity that need to be cleaned. It should be noted that in some embodiments, the brush body 20 can be made of a hard material, such as plastics such as PP, ABS or PBT. The material of the brush body 20 can be the same as that of the rod body 10, for example, the material of the brush body 20 and the material of the rod body 10 are both PP plastic; or, the material of the brush body 20 and the material of the rod body 10 can be different, for example, the material of the brush body 20 is PP plastic, and the material of the rod body 10 is ABS plastic.

[0056] In some embodiments, the brush body 20 and the rod body 10 are an integrated structure, that is, the brush body 20 and the rod body 10 are an integral structure, thereby improving the bonding strength between the brush body 20 and the rod body 10, preventing the brush body 20 and the rod body 10 from separating during the operation of the electric toothbrush 1000, thereby ensuring the stability and reliability of the operation of the electric toothbrush 1000.

[0057] In other embodiments, the brush body 20 and the rod body 10 are split structures, that is, the brush body 20 and the rod body 10 are two different structures. In one example, the brush body 20 and the rod body 10 can be connected together in a detachable connection manner, and the detachable connection manner includes but is not limited to a snap connection or a threaded connection. In another example, the brush body 20 and the rod body 10 can be connected together in a non-detachable connection manner, and the non-detachable connection manner includes but is not limited to bonding or welding.

[0058] The hair-planting part 21 is a structure for installing the bristles 30. The hair-planting surface 211 of the hair-planting part 21 is provided with hair-planting holes 2111, and the bristles 30 are arranged in the hair-planting holes 2111. Among them, the bristles 30 extend from the hair-planting surface 211, that is, the hair-planting surface 211 is a surface for the bristles 30 to pass through from the inside of the hair-planting part 21. The cross-sectional shape of the hair-planting hole 2111 can be circular, elliptical, triangular, quadrilateral or other polygonal shapes, etc., which are not limited here. In one example, the number of hair-planting holes 2111 can be one, and the bristles 30 are all installed in the hair-planting hole 2111. In another example, the number of hair-planting holes 2111 can be at least two. In this case, the bristles 30 are installed in at least two hair-planting holes 2111, so that the density of the bristles 30 can be increased. During the brushing process, the bristles 30 cover a larger area of ​​the teeth, thereby improving the cleaning effect and brushing efficiency.

[0059] In certain embodiments, the hair implanting portion 21 also includes a back side 213 opposite to the hair implanting surface 211. The hair implanting hole 2111 may be a blind hole that only penetrates the hair implanting surface 211, or the hair implanting hole 2111 may be a through hole that penetrates the hair implanting surface 211 and the back side 213. In the case where the hair implanting hole 2111 is a blind hole, when the bristles 30 are installed in the hair implanting hole 2111, the back side 213 of the hair implanting portion 21 can play a certain supporting and fixing role for the bristles 30. In the case where the hair implanting hole 2111 is a through hole, when the bristles 30 are installed in the hair implanting hole 2111, the bristles 30 can be fixed on the back side 213 of the hair implanting portion 21 by gluing or fusion. In the embodiments of the present application, only the hair implanting hole 2111 is a blind hole as an example for description.

[0060] The bristles 30 are a structure for cleaning and / or caring for the parts of the oral cavity that need to be cleaned. The bristles 30 can be arranged in the implantation holes 2111 by a copper implantation process or a copper-free implantation process. The materials of the bristles 30 include but are not limited to nylon, polyamide or silicone.

[0061] As can be seen from the above, when the electric toothbrush 1000 is working normally, the vibration frequency of the electric toothbrush head 100 is relatively high, and the rod body 10 is made of a hard material. Therefore, if the rod body 10 hits the teeth or gums in the oral cavity, it is easy to cause discomfort to the user and even cause damage to the oral cavity. In the embodiment of the present application, the first covering member 40 covers the side portion 111 of the peripheral wall 11 of the rod body 10, that is, the side portion 111 of the peripheral wall 11 of the rod body 10 is not exposed as a whole. During the user's brushing process, the rod body 10 contacts the oral cavity through the first covering member 40, rather than the rod body 10 directly contacting the oral cavity. Moreover, since the hardness of the first covering member 40 is less than the hardness of the rod body 10, the first covering member 40 is easy to produce elastic deformation when in contact with the oral cavity, thereby achieving a better vibration reduction effect, and thus effectively protecting the user's oral cavity.

[0062] In some embodiments, the first covering member 40 is a soft rubber. In this case, the first covering member 40 can be provided on the entire area of ​​the side portion 111 of the peripheral wall 11 of the rod body 10 by means of rubber coating, thereby preventing the rod body 10 from vibrating and bumping to damage the oral cavity, thereby effectively protecting the user's oral cavity; on the other hand, the contact area between the first covering member 40 and the rod body 10 can be increased, thereby improving the stability of the connection between the first covering member 40 and the rod body 10 and reducing the possibility of the first covering member 40 falling off the rod body 10. It is understandable that in other embodiments, the material of the first covering member 40 can also be silicone, polyurethane, rubber or plastic, etc.

[0063] In the electric toothbrush head 100 of the embodiment of the present application, the first covering member 40 covers the entire area of ​​the side portion 111 of the peripheral wall 11 of the rod body 10, and the hardness of the first covering member 40 is less than that of the rod body 10, that is, the material of the first covering member 40 is softer and is more prone to elastic deformation than the rod body 10. In this way, when the user changes the brushing position, the first covering member 40 can have a better vibration damping effect, preventing the rod body 10 from directly colliding with the oral cavity, thereby effectively protecting the user's oral cavity. In addition, the provision of the first covering member 40 can also increase the weight of the rod body 10, thereby reducing the vibration amplitude of the rod body 10 to a certain extent, thereby reducing the possibility of the rod body 10 vibrating and colliding and damaging the oral cavity.

[0064] In addition, since the rod body 10 is made of hard material, the rod body 10 is likely to generate a large noise when the rod body 10 vibrates at a high frequency. Therefore, the provision of the first covering member 40 can also make the vibration of the rod body 10 softer and reduce the noise generated by the vibration of the rod body 10.

[0065] See also Figure 3 In some embodiments, the thickness of the first covering member 40 is the same everywhere, that is, the thickness of the side portion 111 of the peripheral wall 11 of the rod body 10 covered by the first covering member 40 is consistent everywhere. In this way, the first covering member 40 can provide the same vibration-absorbing effect to each position of the rod body 10, preventing the rod body 10 from vibrating and bumping into the oral cavity, thereby effectively protecting the user's oral cavity.

[0066] In other embodiments, the thickness of the first covering member 40 changes with the position of the rod body 10, that is, the thickness of the first covering member 40 covering the side portion 111 of the peripheral wall 11 of the rod body 10 is inconsistent. For example, the thickness of the first covering member 40 corresponding to the area of ​​the rod body 10 that is easy to collide with the oral cavity is thicker, and the thickness of the first covering member 40 corresponding to the area of ​​the rod body 10 that is not easy to collide with the oral cavity is thinner, thereby further enhancing the vibration-absorbing effect of the first covering member 40 and better protecting the user's oral cavity.

[0067] It is understood that, in some embodiments, the brush body 20 also includes a thickness direction, and the thickness direction of the brush body 20 is the direction from the hair-planting surface 211 to the back surface 213; or, the direction from the back surface 213 to the hair-planting surface 211. The thickness of the first covering member 40 is: the size of the first covering member 40 in the thickness direction of the brush body 20.

[0068] Since the vibration of the motor 300 is transmitted to the brush body 20 through the rod body 10, the end of the rod body 10 closest to the brush body 20 is the end of the rod body 10 with the largest vibration amplitude. In this case, if the end of the rod body 10 closest to the brush body 20 collides with the oral cavity, the collision damage to the oral cavity will be more serious.

[0069] In some embodiments, the thickness of the first covering member 40 gradually increases in the direction from the rod body 10 to the brush body 20. Thus, the thickness of the first covering member 40 corresponding to the end of the rod body 10 closest to the brush body 20 is the largest, thereby enhancing the vibration-absorbing effect of the first covering member 40, preventing the rod body 10 from vibrating and bumping into the oral cavity, and effectively protecting the user's oral cavity.

[0070] In other embodiments, the thickness of the first covering member 40 close to the brush body 20 is greater than the thickness of the first covering member 40 far from the brush body 20, so that the thickness of the first covering member 40 corresponding to the end of the rod body 10 closest to the brush body 20 is larger, thereby improving the vibration damping effect of the first covering member 40, preventing the rod body 10 from vibrating and bumping and damaging the oral cavity, and effectively protecting the user's oral cavity. In this embodiment, in the direction from the rod body 10 to the brush body 20, the thickness of the first covering member 40 first decreases and then increases; or, the thickness of the first covering member 40 gradually increases; or, the thickness of the first covering member 40 changes multiple times.

[0071] See also Figure 2 and Figure 3 In some embodiments, the electric toothbrush head 100 may further include a second covering member 50 , which covers the brush body 20 and at least avoids the bristles 30 , and the hardness of the second covering member 50 is less than the hardness of the brush body 20 .

[0072] As can be seen from the above, when the electric toothbrush 1000 is working normally, the vibration frequency of the electric toothbrush head 100 is relatively high, and the brush body 20 is made of hard material. Therefore, if the brush body 20 hits the teeth or gums in the oral cavity, it is easy to cause discomfort to the user and even cause damage to the oral cavity. In the embodiment of the present application, the second covering member 50 covers the brush body 20 and at least avoids the bristles 30. During the user's brushing process, at least part of the brush body 20 can contact the oral cavity through the second covering member 50, rather than the brush body 20 directly contacting the oral cavity. In addition, the hardness of the second covering member 50 is less than the hardness of the brush body 20. Therefore, the second covering member 40 is easy to produce elastic deformation when contacting the oral cavity, thereby achieving a better vibration reduction effect, thereby effectively protecting the user's oral cavity. In addition, the setting of the second covering member 50 can also increase the weight of the brush body 20, thereby reducing the vibration amplitude of the brush body 20 to a certain extent, thereby reducing the possibility of the brush body 20 vibrating and bumping to damage the oral cavity.

[0073] In addition, since the brush body 20 is made of hard material, the brush body 20 is likely to generate a large noise when the brush body 20 vibrates at a high frequency. Therefore, the second covering member 50 can also make the vibration of the brush body 20 softer and reduce the noise generated by the vibration of the brush body 20.

[0074] In some embodiments, the second covering member 50 is a soft rubber. In this case, the second covering member 50 can be disposed on the brush body 20 in a rubber-coated manner and at least avoid the bristles 30. This can prevent the brush body 20 from vibrating and bumping to damage the oral cavity, thereby effectively protecting the user's oral cavity; on the other hand, it can increase the contact area between the second covering member 50 and the brush body 20, thereby improving the stability of the connection between the second covering member 50 and the brush body 20 and reducing the possibility of the second covering member 50 falling off the brush body 20. It is understandable that in other embodiments, the material of the second covering member 50 can also be silicone, polyurethane, rubber or plastic.

[0075] In some embodiments, the second covering member 50 and the first covering member 40 are an integral structure, that is, the second covering member 50 and the first covering member 40 are an integral structure. In other embodiments, the second covering member 50 and the first covering member 40 are split structures, that is, the second covering member 50 and the first covering member 40 are two different structures. In one example, the second covering member 50 and the first covering member 40 can be combined together in a detachable connection manner, and the detachable connection manner includes but is not limited to a snap connection or a threaded connection. In another example, the second covering member 50 and the first covering member 40 can be combined together in a non-detachable connection manner, and the non-detachable connection manner includes but is not limited to bonding or welding.

[0076] It is understood that in some embodiments, the material of the second covering member 50 may be the same as that of the first covering member 40; or, the material of the second covering member 50 may be different from that of the first covering member 40. Accordingly, the hardness of the second covering member 50 may be the same as that of the first covering member 40; or, the hardness of the second covering member 50 may be different from that of the first covering member 40.

[0077] See also Figure 3 In some embodiments, the hair-implanted portion 21 also includes a peripheral side surface 215 connecting the hair-implanted surface 211 and the back surface 213, and the second covering member 50 covers at least one of the hair-implanted surface 211, the back surface 213 and the peripheral side surface 215. This can reduce the possibility of the brush body 20 directly colliding with the oral cavity and causing oral damage during the user's brushing process, thereby effectively protecting the user's oral cavity.

[0078] Since the hair-implanted surface 211 is the surface of the hair-implanted portion 21 facing the user's teeth, and the back surface 213 is the surface of the hair-implanted portion 21 facing away from the user's teeth during the user's brushing process, the back surface 213 and the peripheral side surface 215 are more likely to collide with the user's mouth than the hair-implanted surface 211 during the user's brushing process. Therefore, in some embodiments, the second covering member 50 covers the back surface 213 and the peripheral side surface 215, which can reduce the possibility of direct collision between the brush body 20 and the oral cavity during the user's brushing process, thereby effectively protecting the user's oral cavity; on the other hand, it can prevent the second covering member 50 from entering the hair-implanted hole 2111 and causing the hair-implanted hole 2111 to be blocked during the process of the second covering member 50 covering the hair-implanted surface 211, thereby ensuring the normal installation of the bristles 30.

[0079] In some embodiments, there is only one bristle implanting portion 21 , which can facilitate the installation of the brush body 20 on the rod body 10 , reduce the assembly steps of the electric toothbrush head 100 , and improve the assembly efficiency of the electric toothbrush head 100 .

[0080] See also Figure 3 and Figure 4 In other embodiments, there are at least two hair-implanted portions 21, and the brush body 20 further includes at least one connecting portion 23. In the length direction X of the rod body 10, at least two hair-implanted portions 21 are arranged in sequence at intervals, and the connecting portion 23 is arranged between two adjacent hair-implanted portions 21 and connects the two adjacent hair-implanted portions 21. The width of the hair-implanted portion 21 is greater than the width of the connecting portion 23; and / or the thickness of the hair-implanted portion 21 is greater than the thickness of the connecting portion 23.

[0081] The connecting portion 23 is a structure that connects two adjacent hair-planting portions 21. In the embodiment of the present application, since the width of the hair-planting portion 21 is greater than the width of the connecting portion 23; and / or the thickness of the hair-planting portion 21 is greater than the thickness of the connecting portion 23, the connecting portion 23 is more likely to deform when subjected to force, that is, when the bristles 30 and / or the hair-planting portion 21 are subjected to external force, the connecting portion 23 will bend and deform under the action of the external force, so that the hair-planting portions 21 connected to the connecting portion 23 move away from or closer to each other, that is, the distance between adjacent hair-planting portions 21 changes, which can drive the brush body 20 to bend and deform. At this time, the bristles 30 can better fit the teeth, thereby improving the cleaning effect of the electric toothbrush 1000.

[0082] In some embodiments, the hair implanting portion 21 and the connecting portion 23 are split structures, and the hair implanting portion 21 and the connecting portion 23 can be fixed to each other by non-detachable connection methods such as gluing connection or hot-melt connection, or by detachable connection methods such as snap connection, threaded connection or bolt connection. In other embodiments, the hair implanting portion 21 and the connecting portion 23 are an integral structure, that is, the hair implanting portion 21 and the connecting portion 23 can be combined in an integral molding manner, which can improve the stability of the connection between the hair implanting portion 21 and the connecting portion 23, prevent the hair implanting portion 21 and the connecting portion 23 from separating during use of the electric toothbrush head 100, thereby ensuring the stability and reliability of the operation of the electric toothbrush head 100 and extending the service life of the electric toothbrush head 100.

[0083] In some embodiments, the second covering member 50 also covers at least a portion of the connecting portion 23 .

[0084] Specifically, in some embodiments, the connection portion 23 includes a front side 231 on the same side as the hair-planting surface 211, a back side 233 opposite to the front side 231, and a side side 235 connecting the front side 231 and the back side 233. The second covering member 50 covers at least one of the front side 231, the back side 233, and the side side 235, thereby reducing the possibility of direct collision between the connection portion 23 and the oral cavity during the user's brushing process, thereby effectively protecting the user's oral cavity. In addition, the second covering member 50 also covers at least a portion of the connection portion 23, thereby further increasing the stability of the connection between the second covering member 50 and the brush body 20, and preventing the second covering member 50 from falling off the brush body 20 under high-frequency vibration.

[0085] Please continue reading Figure 3 and Figure 4In some embodiments, the second covering member 50 fills the gap between two adjacent hair-planting portions 21, thereby preventing dirt (such as sewage or dental plaque, etc.) from being deposited in the gap between two adjacent hair-planting portions 21, thereby ensuring the cleanliness of the electric toothbrush head 100 and improving the electric toothbrush 1000 ( Figure 1 on the other hand, it can enhance the vibration-absorbing effect of the second covering member 50 on the brush body 20, further reducing the possibility of oral damage caused by collision between the brush body 20 and the oral cavity.

[0086] In some embodiments, the second covering member 50 covers the rear surface 233 and the back surface 213 , and the thickness of the second covering member 50 on the rear surface 233 is greater than the thickness of the second covering member 50 on the back surface 213 .

[0087] Among them, in the embodiment of the present application, the bristles 30 are only arranged in the hair-implanting holes 2111 on the hair-implanting surface 211, that is, the bristles 30 are not arranged on the connecting portion 23, and the width of the hair-implanting portion 21 is greater than the width of the connecting portion 23; and / or the thickness of the hair-implanting portion 21 is greater than the thickness of the connecting portion 23, thereby, the thickness of the second covering member 50 on the back face 233 is greater than the thickness of the second covering member 50 on the back face 213, thereby making the weight of the second covering member 50 larger, and further enhancing the vibration reduction effect of the second covering member 50 on the brush body 20.

[0088] See also Figure 1 , Figure 3 and Figure 5 In some embodiments, in the width direction Y of the brush body 20, the second covering member 50 includes a first portion 51, a second portion 53, and a third portion 55 connected in sequence, the second portion 53 intersects with the width mid-plane of the brush body 20, the second portion 53 is farther away from the hair-planting surface 211 than the first portion 51, and the second portion 53 is farther away from the hair-planting surface 211 than the third portion 55. It should be noted that in some embodiments, the second covering member 50 includes a covering portion opposite to the back side 213 of the hair-planting portion 21, and the first portion 51, the second portion 53, and the third portion 55 together form the covering portion.

[0089] It can be understood that, in some embodiments, the width direction Y of the brush body 20 and the length direction X of the rod body 10 ( Figure 4 The width median plane of the brush body 20 is perpendicular to the width direction Y of the brush body 20. If the brush body 20 is a symmetrical structure in the width direction Y of the brush body 20, the brush body 20 can be evenly divided into two symmetrical halves by the width median plane of the brush body 20. Therefore, in this embodiment, the second portion 53 is the middle area of ​​the brush body 20 in the width direction Y of the brush body 20.

[0090] In the related art, since the output shaft of the motor 300 is roughly aligned with the middle area of ​​the brush body 20 in the width direction Y of the brush body 20, the vibration amplitude of the middle area of ​​the brush body 20 is larger than the vibration amplitude of the middle area of ​​the brush body 20 on both sides in the width direction Y. If the middle area of ​​the brush body 20 collides with the oral cavity, the collision damage to the oral cavity will be more serious. Therefore, in the embodiment of the present application, the second part 53 is farther away from the hair-planting surface 211 than the first part 51, and the second part 53 is farther away from the hair-planting surface 211 than the third part 55, so that the thickness of the second part 53 can be larger, and then the vibration reduction effect of the second part 53 can be improved, so as to prevent the vibration amplitude of the area corresponding to the second part 53 on the brush body 20 from being too large, causing collision and damage to the oral cavity, and effectively realizing the protection of the user's oral cavity.

[0091] In some embodiments, the second portion 53 is smoothly connected to the first portion 51 , and the second portion 53 is smoothly connected to the third portion 55 , thereby avoiding the problem of the uneven shape of the second covering member 50 bumping or scratching the oral cavity.

[0092] See also Figure 3 and Figure 6 In some embodiments, the rod body 10 is provided with an inner cavity 13, and a connecting piece 60 is provided in the inner cavity 13.

[0093] Specifically, please combine Figure 1 In some embodiments, the output shaft of the motor 300 can be connected to the rod body 10 through the connecting piece 60. When the motor 300 is running stably, the vibration of the output shaft of the motor 300 can be transmitted to the rod body 10 through the connecting piece 60. In some embodiments, the connecting piece 60 and the rod body 10 can be connected together in a non-detachable connection manner, including but not limited to bonding, welding or interference connection. In other embodiments, the connecting piece 60 and the rod body 10 can be connected together in a detachable connection manner, including but not limited to threaded connection or clamping.

[0094] It should be noted that, in some embodiments, the connector 60 may be made of metal material or non-metal material, wherein metal material includes but is not limited to aluminum alloy or steel, etc.; non-metal material includes but is not limited to plastic, etc. In the case where the connector 60 is made of metal material, the structural strength of the connector 60 is relatively high, thereby reducing the possibility of collision damage to the connector 60 and ensuring the normal connection between the electric toothbrush head 100 and the handle 200. In the case where the connector 60 is made of non-metal material, the weight of the connector 60 is relatively light, thereby facilitating the lightness of the electric toothbrush head 100 and the electric toothbrush 1000.

[0095] Please combine Figure 7In some embodiments, the electric toothbrush head 100 may further include a third covering member 70, which covers the side wall of the inner cavity 13 and is located between the side wall of the inner cavity 13 and the connecting member 60. The hardness of the third covering member 70 is less than the hardness of the rod body 10. It should be noted that in some embodiments, the material of the third covering member 70 includes but is not limited to silicone, soft glue, polyurethane, rubber or plastic.

[0096] Specifically, in some embodiments, the third covering member 70 is located between the side wall of the inner cavity 13 and the connecting member 60, and the third covering member 70 is connected to the side wall of the inner cavity 13 and the outer wall of the connecting member 60, so that when the electric vibration is transmitted to the rod body 10 through the connecting member 60, the third covering member 70 can buffer the vibration, thereby making the vibration of the rod body 10 softer, thereby achieving a protective effect on the oral cavity. In addition, the third covering member 70 can also achieve an interference connection with the connecting member 60, thereby improving the connection strength of the connecting member 60 on the rod body 10, preventing the connecting member 60 from falling off from the rod body 10 during the operation of the electric toothbrush 1000, thereby improving the stability and reliability of the operation of the electric toothbrush 1000.

[0097] In addition, since the use environment of the electric toothbrush head 100 is a watery and humid environment, during the use of the electric toothbrush head 100, external water may enter the inner cavity 13 through the gap between the side wall of the inner cavity 13 and the connecting piece 60, which may easily cause the electric toothbrush head 100 to be contaminated. In addition, the external water entering the inner cavity 13 will also increase the weight of the electric toothbrush head 100, thereby causing the amplitude and sweep width of the electric toothbrush head 100 to be weakened, affecting the cleaning effect. In the embodiment of the present application, the third covering member 70 covers the side wall of the inner cavity 13 and is located between the side wall of the inner cavity 13 and the connecting piece 60. Therefore, the third covering member 70 can also prevent external water from entering the inner cavity 13 through the gap between the side wall of the inner cavity 13 and the connecting piece 60, thereby preventing the electric toothbrush head 100 from being contaminated on the one hand; on the other hand, it can prevent the weight of the electric toothbrush head 100 from increasing, thereby ensuring the amplitude and sweep width of the electric toothbrush head 100 and improving the cleaning effect of the electric toothbrush 1000.

[0098] See also Figure 3 , Figure 6 and Figure 7 In some embodiments, the electric toothbrush head 100 may further include a fourth covering member 80 , which covers the bottom 113 of the peripheral wall 11 of the rod body 10 , and the third covering member 70 is connected to the first covering member 40 through the fourth covering member 80 .

[0099] Specifically, in some embodiments, the first covering member 40 and the fourth covering member 80 are an integral structure, that is, the first covering member 40 and the fourth covering member 80 are an integral structure. In other embodiments, the first covering member 40 and the fourth covering member 80 are split structures, that is, the first covering member 40 and the fourth covering member 80 are two different structures. In one example, the first covering member 40 and the fourth covering member 80 can be combined together in a detachable connection manner, and the detachable connection manner includes but is not limited to a snap connection or a threaded connection. In another example, the first covering member 40 and the fourth covering member 80 can be combined together in a non-detachable connection manner, and the non-detachable connection manner includes but is not limited to bonding or welding.

[0100] Similarly, the third covering member 70 and the fourth covering member 80 are an integral structure, that is, the third covering member 70 and the fourth covering member 80 are an integral structure. In other embodiments, the third covering member 70 and the fourth covering member 80 are split structures, that is, the third covering member 70 and the fourth covering member 80 are two different structures. In one example, the third covering member 70 and the fourth covering member 80 can be combined together in a detachable connection manner, and the detachable connection manner includes but is not limited to a snap connection or a threaded connection. In another example, the third covering member 70 and the fourth covering member 80 can be combined together in a non-detachable connection manner, and the non-detachable connection manner includes but is not limited to bonding or welding.

[0101] In the description of this specification, the descriptions with reference to the terms "certain embodiments", "in an example", "exemplarily", etc., mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0102] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An electric toothbrush head, characterized in that: include: Rod body; A brush body connected to the rod body, the brush body comprising a hair-planting portion, the hair-planting portion comprising a hair-planting surface, and the hair-planting surface is provided with hair-planting holes; Bristles, the bristles are arranged in the hair-planting holes and extend from the hair-planting surface; and A first covering member covers the entire area of ​​the side of the peripheral wall of the rod body, and the hardness of the first covering member is less than the hardness of the rod body.

2. The electric toothbrush head according to claim 1, characterized in that: The rod body is an integrated structure, and the first covering member is soft rubber.

3. The electric toothbrush head according to claim 1, characterized in that: The thickness of the first covering member is the same everywhere; or the thickness of the first covering member changes with the position of the rod body.

4. The electric toothbrush head according to claim 1, characterized in that: In the direction from the rod body to the brush body, the thickness of the first covering member gradually increases; or The thickness of the first covering member close to the brush body is greater than the thickness of the first covering member far from the brush body.

5. The electric toothbrush head according to claim 1, characterized in that: The electric toothbrush head also includes: A second covering member covers the brush body and at least avoids the bristles, and the hardness of the second covering member is less than the hardness of the brush body.

6. The electric toothbrush head according to claim 5, characterized in that: The second covering member and the first covering member are an integral structure; or, the second covering member and the first covering member are separate structures.

7. The electric toothbrush head according to claim 5, characterized in that: The hair-implanting portion further includes a back surface opposite to the hair-implanting surface and a peripheral side surface connecting the hair-implanting surface and the back surface; the second covering member covers at least one of the hair-implanting surface, the back surface and the peripheral side surface.

8. The electric toothbrush head according to claim 7, characterized in that: There is one hair implantation portion; or There are at least two hair-implanted parts, and the brush body also includes at least one connecting part. In the length direction of the rod body, at least two of the hair-implanted parts are arranged in sequence at intervals, and the connecting part is arranged between two adjacent hair-implanted parts and connects two adjacent hair-implanted parts. The width of the hair-implanted part is greater than the width of the connecting part; and / or the thickness of the hair-implanted part is greater than the thickness of the connecting part; the second covering member also covers at least a partial area of ​​the connecting part.

9. The electric toothbrush head according to claim 8, characterized in that: The second covering member fills up the space between two adjacent hair-implanting portions; or, The connecting portion includes a front side on the same side as the hair-implanted surface, a back side opposite to the front side, and a side side connecting the front side and the back side; the second covering member covers at least one of the front side, the back side, and the side side.

10. The electric toothbrush head according to claim 8, characterized in that: The connecting portion includes a front side on the same side as the hair-implanted surface, a back side opposite to the front side, and a side surface connecting the front side and the back side; the second covering member covers the back side and the back side, and the thickness of the second covering member on the back side is greater than the thickness of the second covering member on the back side.

11. The electric toothbrush head according to claim 5, characterized in that: In the width direction of the brush body, the second covering part includes a first part, a second part and a third part which are connected in sequence, the second part intersects with the width median plane of the brush body, the second part is farther away from the hair-implanting surface than the first part, and the second part is farther away from the hair-implanting surface than the third part.

12. The electric toothbrush head according to claim 11, characterized in that: The second portion is connected to the first portion in a smooth transition, and the second portion is connected to the third portion in a smooth transition.

13. The electric toothbrush head according to claim 1, characterized in that: The rod body is provided with an inner cavity, and a connecting piece is provided in the inner cavity; the electric toothbrush head also includes: A third covering member covers the side wall of the inner cavity and is located between the side wall of the inner cavity and the connecting member. The hardness of the third covering member is less than the hardness of the rod body.

14. The electric toothbrush head according to claim 13, characterized in that: The electric toothbrush head further comprises a fourth covering member, wherein the fourth covering member covers the bottom of the peripheral wall of the rod body, and the third covering member is connected to the first covering member via the fourth covering member.

15. An electric toothbrush, characterized in that: include: An electric toothbrush head and a brush handle as described in any one of claims 1 to 14, wherein the electric toothbrush head is mounted on the brush handle.

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