Electric toothbrush head and electric toothbrush
By using a metal brush disk instead of plastic material in the toothbrush head, both fixing the brush and serving as a counterweight, the problem of adding counterweight parts to increase thickness in the existing toothbrush head is solved, and a thinner and cleaner toothbrush head design is achieved.
Patent Information
- Application Number
- CN202420731530.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-04-07
AI Technical Summary
The way of directly adding counterweights to existing toothbrush heads will increase the thickness of the toothbrush head.
By setting up a metal brush disk instead of the original plastic material, the metal brush disk not only fixes the brush, but also uses its own metal weight as a counterweight to reduce the number of parts inside the toothbrush head and maintain or reduce the thickness of the toothbrush head.
It realizes that the thickness of the toothbrush head is maintained or reduced without the need for additional weight parts, while the use of metal materials improves cleaning and antibacterial properties.
Smart Images
Figure CN222604730U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electric toothbrush heads, in particular to an electric toothbrush head and an electric toothbrush. Background Art
[0002] Electric toothbrushes are connected to sonic motors and other driving devices to achieve automatic swing or vibration of the toothbrush head. The toothbrush head is the most basic replaceable accessory. In vibrating electric toothbrushes, the brush head usually has a built-in weight block of a certain mass to reduce the vibration during brushing.
[0003] A common way to add a counterweight is to expand a certain space on the basis of the original toothbrush head structure, and clamp the counterweight between the tail of the brush plate and the brush handle, that is, to directly add an internal space for fixing the counterweight in the brush handle area at the brush plate position.
[0004] This method of directly adding a counterweight to the inner area will increase the thickness of the original toothbrush head. Summary of the invention
[0005] The utility model provides an electric toothbrush head and an electric toothbrush, aiming to solve the problem that the thickness of the toothbrush head will be increased by directly adding a counterweight to the existing toothbrush head.
[0006] According to an embodiment of the present application, there is provided an electric toothbrush head, comprising a brush assembly, a brush handle and a brush, wherein the brush assembly is connected to the brush handle, and the brush is connected to a side of the brush assembly away from the brush handle; the brush assembly comprises a metal brush disc, and the brush is connected to the metal brush disc; the brush handle comprises an installation groove for positioning the brush assembly, and the metal brush disc is positioned in the installation groove.
[0007] Preferably, a protrusion or a recess is provided on the inner side wall of the mounting groove; the metal brush plate includes a bristle-planted surface and a fixed wall arranged on the outer peripheral side of the bristle-planted surface, and a protrusion or a recess is provided on a surface of the fixed wall close to the mounting groove; when the brush assembly is positioned in the mounting groove, the protrusion is placed in the recess.
[0008] Preferably, an annular groove is provided at the bottom of the installation groove, and a raised annular wall is provided at a position of the fixed wall corresponding to the annular groove, and the annular wall is placed in the annular groove.
[0009] Preferably, the outer edge of the hair-implanted surface is placed inside the inner edge of the fixed wall.
[0010] Preferably, the brush assembly further comprises a plastic brush disc, and the plastic brush disc is positioned on a side of the metal brush disc close to the mounting groove;
[0011] The plastic brush disc is welded and fixed to the hair brush, and the hair brush passes through the metal brush disc.
[0012] Preferably, the brush assembly further comprises a plastic brush disc, and the plastic brush disc is positioned on a side of the metal brush disc close to the mounting groove; the bristles are welded to the metal brush disc and the plastic brush disc at the same time.
[0013] Preferably, a soft rubber bag is positioned on the back side of the brush handle corresponding to the mounting groove.
[0014] The utility model also provides an electric toothbrush, comprising a toothbrush body and any one of the electric toothbrush heads described above, wherein the electric toothbrush head is connected to one end of the toothbrush body.
[0015] Compared with the prior art, the electric toothbrush head and the electric toothbrush provided by the utility model have the following beneficial effects:
[0016] 1. By replacing the original plastic material with a metal brush plate, the brush can be fixed and act as a brush plate. At the same time, the metal weight can be used as a counterweight. There is no need to set an additional counterweight inside the brush head, which reduces the number of parts of the toothbrush head and can maintain or reduce the thickness of the toothbrush head. At the same time, compared with traditional plastic materials, the use of metal such as stainless steel as the brush plate material is less likely to breed bacteria and easier to clean.
[0017] 2. By setting a fixed wall, the weight of the outer peripheral side of the metal brush disc is increased, and the outer edge of the bristle-planted surface is placed inside the inner edge of the fixed wall, that is, the weight distribution ring of the metal brush disc is arranged on the outer peripheral side of the brush, and the counterweight area of the metal brush disc wraps the entire bristle-planted surface area, thereby increasing the balance and uniformity of the entire brush head, reducing the overall vibration of the brush head, and preventing the center of gravity from losing weight when swinging left or right. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 It is a schematic structural diagram of an electric toothbrush head provided by the first embodiment of the utility model.
[0020] Figure 2 It is a schematic diagram of the exploded structure of the electric toothbrush head provided by the first embodiment of the utility model.
[0021] Figure 3 It is a schematic cross-sectional structure diagram of an electric toothbrush head provided by the first embodiment of the utility model.
[0022] Figure 4 yes Figure 3 Magnified view of area A.
[0023] Description of labels:
[0024] 1. Brush assembly; 11. Metal brush disc; 111. Brush planting surface; 112. Fixed wall; 113. Annular wall; 12. Plastic brush disc;
[0025] 2. Brush handle; 21. Mounting groove; 22. Annular groove; 23. Soft rubber bag;
[0026] 3. Brush;
[0027] 101. protrusion; 102. pit. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.
[0030] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.
[0031] Please combine Figure 1 , Figure 2 and Figure 3 The first embodiment of the utility model discloses an electric toothbrush head, comprising a brush assembly 1, a brush handle 2 and a brush 3, wherein the brush assembly 1 is connected to the brush handle 2, and the brush 3 is connected to a side of the brush assembly 1 away from the brush handle 2.
[0032] The brush assembly 1 includes a metal brush plate 11, and the brush 3 is connected to the metal brush plate 11. The brush handle 2 includes a mounting groove 21 for positioning the brush assembly 1, and the metal brush plate 11 is positioned in the mounting groove 21.
[0033] The metal brush plate 11 is made of stainless steel or food-grade metal materials such as titanium alloy or nickel alloy, such as 304 or 316 stainless steel, that is, the metal brush plate 11 can act as a counterweight by its own weight while fixing the brush 3, and there is no need to set an additional counterweight in the mounting groove 21. At the same time, compared with traditional materials such as plastic, the use of metal as the brush plate material has the effect of not easily breeding bacteria and being easy to clean.
[0034] The metal brush plate 11 and the mounting groove 21 can be fixed by clamping, hot-melt welding or bonding. Figure 3 and Figure 4 The inner wall of the mounting groove 21 is provided with a protrusion 101 or a recess 102. The metal brush plate 11 includes a hair planting surface 111 and a fixed wall 112 arranged around the outer peripheral side of the hair planting surface 111. The fixed wall 112 is provided with a protrusion 101 or a recess 102 on one side close to the mounting groove 21. When the brush assembly 1 is positioned in the mounting groove 21, the protrusion 101 is placed in the recess 102.
[0035] It can be understood that the protrusion 101 and the pit 102 cooperate to achieve the clamping fixation of the metal brush plate 11 and the mounting groove 21. The protrusion 101 can be arranged on the surface of the fixed wall 112, or on the internal surface of the mounting groove 21, or on both the fixed wall 112 and the internal surface of the mounting groove 21. As long as a matching pit 102 is provided at the position corresponding to the protrusion 101, the clamping fixation of the metal brush plate 11 and the mounting groove 21 can be achieved, and no limitation is made here.
[0036] It can be understood that by setting the fixed wall 112, the weight of the outer peripheral side of the metal brush disc 11 is increased, and the outer edge of the bristle-implanted surface 111 is placed inside the inner edge of the fixed wall 112, that is, the weight distribution ring of the metal brush disc 11 is arranged on the outer peripheral side of the brush 3, and the counterweight area of the metal brush disc 11 wraps the entire bristle-implanted surface 111 area, thereby increasing the balance and uniformity of the head of the entire brush head, reducing the overall vibration of the brush head, and preventing the center of gravity from losing weight when it swings left or right.
[0037] Please combine Figure 3 and Figure 4 An annular groove 22 is provided at the bottom of the mounting groove 21, and a raised annular wall 113 is provided at a position of the fixed wall 112 corresponding to the annular groove 22. The annular wall 113 is inserted into the annular groove 22, so that the metal brush plate 11 is more accurately positioned and more firmly fixed when installed in the mounting groove 21, thereby reducing vibration.
[0038] Please continue reading Figure 3A soft rubber coating 23 is also positioned on the back side of the brush handle 2 corresponding to the mounting groove 21. The soft rubber coating 23 covers the back area of the brush handle 2 corresponding to the brush 3, so that the user has a softer back structure when using it in the mouth, thereby improving the user's experience.
[0039] Please continue to combine Figure 2 and Figure 3 The brush assembly 1 also includes a plastic brush disc 12, which is positioned on one side of the metal brush disc 11 close to the mounting groove 21. The plastic brush disc 12 is fixed to the brush 3 by welding, and the brush 3 passes through the metal brush disc 11. The metal brush disc 11 can be provided with an annular groove structure for pre-tightening and fixing the plastic brush disc 12 at the position of the plastic brush disc 12 and pressing it. By fixing the brush 3 on the plastic brush disc 12, the hot melt welding hair transplantation is facilitated in production.
[0040] Optionally, as an embodiment, the brush 3 is welded to the metal brush disc 11 and the plastic brush disc 12 at the same time, that is, the brush 3 is fixed by the two structures of the metal brush disc 11 and the plastic brush disc 12, thereby improving the stability of the bristle implantation and fixation of the brush 3.
[0041] The second embodiment of the present invention provides a rotating electric toothbrush (not shown), which includes a toothbrush body and the electric toothbrush head provided in the first embodiment, wherein the electric toothbrush head is connected to one end of the toothbrush body, and when the toothbrush body is started, the electric toothbrush head is driven to reciprocate or vibrate.
[0042] Compared with the prior art, the electric toothbrush head and the electric toothbrush provided by the utility model have the following beneficial effects:
[0043] 1. By replacing the original plastic material with a metal brush plate, the brush can be fixed and act as a brush plate. At the same time, the metal weight can be used as a counterweight. There is no need to set an additional counterweight inside the brush head, which reduces the number of parts of the toothbrush head and can maintain or reduce the thickness of the toothbrush head. At the same time, compared with traditional plastic materials, the use of metal such as stainless steel as the brush plate material is less likely to breed bacteria and easier to clean.
[0044] 2. By setting a fixed wall, the weight of the outer peripheral side of the metal brush disc is increased, and the outer edge of the bristle-planted surface is placed inside the inner edge of the fixed wall, that is, the weight distribution ring of the metal brush disc is arranged on the outer peripheral side of the brush, and the counterweight area of the metal brush disc wraps the entire bristle-planted surface area, thereby increasing the balance and uniformity of the entire brush head, reducing the overall vibration of the brush head, and preventing the center of gravity from losing weight when swinging left or right.
[0045] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. An electric toothbrush head, characterized in that: It comprises a brush assembly, a brush handle and a brush, wherein the brush assembly is connected to the brush handle, and the brush is connected to a side of the brush assembly away from the brush handle; The brush assembly comprises a metal brush plate, and the brush is connected to the metal brush plate; The brush handle comprises a mounting groove for positioning the brush assembly, and the metal brush disc is positioned in the mounting groove.
2. The electric toothbrush head according to claim 1, characterized in that: The inner side wall of the installation groove is provided with a protrusion or a pit; The metal brush plate comprises a hair planting surface and a fixed wall arranged around the outer peripheral side of the hair planting surface, and a protrusion or a pit is arranged on a surface of the fixed wall close to the mounting groove; When the brush assembly is positioned in the mounting groove, the protrusion is placed in the recess.
3. The electric toothbrush head according to claim 2, characterized in that: An annular groove is provided at the bottom of the installation groove, and a raised annular wall is provided at a position of the fixed wall corresponding to the annular groove, and the annular wall is placed in the annular groove.
4. The electric toothbrush head according to claim 2, characterized in that: The outer edge of the hair-implanting surface is placed inside the inner edge of the fixed wall.
5. The electric toothbrush head according to claim 2, characterized in that: The brush assembly further comprises a plastic brush disc, and the plastic brush disc is positioned on a side of the metal brush disc close to the mounting groove; The plastic brush disc is welded and fixed to the hair brush, and the hair brush passes through the metal brush disc.
6. The electric toothbrush head according to claim 2, characterized in that: The brush assembly further comprises a plastic brush disc, and the plastic brush disc is positioned on a side of the metal brush disc close to the mounting groove; The bristles are welded to the metal brush disc and the plastic brush disc at the same time.
7. The electric toothbrush head according to claim 1, characterized in that: The brush handle is also provided with a soft rubber package on the back side corresponding to the mounting groove.
8. An electric toothbrush, characterized in that: It comprises a toothbrush body and an electric toothbrush head as claimed in any one of claims 1 to 7, wherein the electric toothbrush head is connected to one end of the toothbrush body.