Toothbrush head and electric toothbrush

Abstract

The utility model relates to the technical field of oral cleaning appliances, in particular to a toothbrush head and an electric toothbrush. The toothbrush head comprises a brush head frame and a bristle assembly. Accommodating grooves are formed in two sides of the brush head frame in a back-to-back manner, and the two accommodating grooves are used for accommodating teeth of an upper jaw and a lower jaw; a mounting cavity is defined between the two containing grooves, and through openings are formed in the two sides, in the first direction, of the containing grooves. The bristle assembly comprises four first bristle pieces and second bristle pieces, the four first bristle pieces are arranged on the two sides in the first direction in the two containing grooves respectively, the second bristle pieces are rotationally arranged in the mounting cavity, at least part of the second bristle pieces are located in the containing grooves, and rotating shafts of the second bristle pieces are perpendicular to the first direction; therefore, the four first bristle pieces and the four second bristle pieces can clean all the faces of teeth of the upper jaw and the lower jaw at the same time, the second bristle pieces can discharge dirt brushed by the bristle assemblies from the through openings, the dirt is prevented from being left among the bristles and in the containing groove, the dirt is prevented from rubbing the tooth faces in a reciprocating mode, and the cleaning effect of the toothbrush head is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of oral hygiene equipment technology, and in particular to a toothbrush head and an electric toothbrush. Background Technology

[0002] Toothbrush heads are generally made of bristles on one side only. When brushing your teeth, you need to constantly change the angle of the side with bristles in order to clean the inner and outer surfaces of the teeth as well as the chewing surfaces. Furthermore, it is impossible to clean the upper and lower teeth at the same time, resulting in lower brushing efficiency.

[0003] Therefore, existing technology provides grooves on both sides of the toothbrush head, with bristles on each wall of the grooves, so that the toothbrush head can brush all surfaces of the upper and lower teeth simultaneously. However, its drawback is that, because bristles are on each wall of the grooves, the bristles are densely packed in multiple directions within the grooves. This makes it easy for dirt brushed off the teeth to remain between the bristles, hindering its removal from the grooves. Furthermore, the bristles cause the dirt to rub back and forth on the tooth surface, affecting the cleaning effect. Utility Model Content

[0004] The technical problem to be solved by this utility model embodiment is to provide a toothbrush head and an electric toothbrush to solve the problem that multi-faceted bristle toothbrush heads in the prior art cannot effectively remove the dirt brushed off.

[0005] The toothbrush head provided in this embodiment includes: a brush head holder with receiving grooves arranged opposite each other on both sides, the two receiving grooves being used to receive upper and lower jaw teeth; and a mounting cavity defined between the two receiving grooves, the receiving grooves having openings on both sides in a first direction; and a bristle assembly including four first bristle members and second bristle members, the four first bristle members being respectively disposed on both sides of the two receiving grooves in the first direction for cleaning teeth, the second bristle members being rotatably disposed in the mounting cavity and at least partially located in the receiving grooves for cleaning teeth, the rotation axis of the second bristle members being perpendicular to the first direction so that the second bristle members can discharge the brushed dirt from the openings.

[0006] Optionally, the brush head holder includes two plates arranged opposite each other and two connecting arms. Each plate includes a connecting portion and mounting portions located on both sides of the connecting portion. The two ends of the connecting arms are respectively connected to the connecting portions of the two plates. The connecting arms and the mounting portions define the receiving groove, and the connecting portions and the connecting arms define the mounting cavity.

[0007] Optionally, the inner wall of the mounting part is provided with a mounting groove, and the first brush bristle is detachably disposed in the mounting groove.

[0008] Optionally, it also includes a connecting rod, wherein the two ends of the connecting rod are respectively connected to the two connecting parts in the mounting cavity, and the second bristle is rotatably sleeved on the connecting rod.

[0009] Optionally, it also includes two positioning rods, one end of which is provided with a positioning piece, and the inner side of the connecting part is provided with a positioning groove, the positioning piece being located in the positioning groove, the other end of the positioning rod abutting against the positioning piece of the other positioning rod, and the two positioning rods being sequentially sleeved on the connecting rod, the second bristle being rotatably sleeved on the outer positioning rod, and the second bristle being limited between the two positioning pieces.

[0010] Optionally, the two mounting portions located on the same side of the second brush member are obliquely arranged and inclined toward the outside of the receiving groove.

[0011] Optionally, the brush head holder is integrally formed.

[0012] Optionally, it also includes a brush rod, wherein the brush head holder is provided with a universal joint along the first direction, one end of the brush rod is provided with a rotating groove, the ball end of the universal joint is rotatably connected to the rotating groove, and the other end of the brush rod is used for detachably connecting to a drive assembly.

[0013] Optionally, it also includes a brush handle, wherein the brush head holder is provided with a universal joint along the first direction, one end of the brush handle is provided with a rotating groove, the ball end of the universal joint is rotatably connected in the rotating groove, and the brush handle is a hand grip for manual holding.

[0014] This utility model also provides an electric toothbrush, including the toothbrush head as described above.

[0015] Compared with the prior art, the beneficial effects of the toothbrush head provided by this utility model embodiment are as follows: The toothbrush head includes a brush head holder and a bristle assembly. The brush head holder has two oppositely arranged receiving grooves on both sides, which are used to receive the upper and lower jaw teeth; and a mounting cavity is defined between the two receiving grooves. Each receiving groove has an opening on both sides in a first direction. The bristle assembly includes four first bristle pieces and two second bristle pieces. The four first bristle pieces are respectively disposed on both sides in the two receiving grooves in the first direction for cleaning teeth. The second bristle pieces are rotatably disposed in the mounting cavity and at least partially located within the receiving grooves for cleaning teeth. The axis of rotation of the second bristle pieces is perpendicular to the first direction. Therefore, the four first bristle pieces and the second bristle pieces can simultaneously clean all surfaces of the upper and lower jaw teeth. During the cleaning process, the second bristle pieces can discharge the dirt brushed off by the bristle assembly through the openings, preventing dirt from remaining between the bristles and in the receiving grooves. This prevents dirt from repeatedly rubbing against the tooth surface under the movement of the bristles, thus ensuring the cleaning effect of the toothbrush head. Attached Figure Description

[0016] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. In the accompanying drawings:

[0017] Figure 1 This is a three-dimensional schematic diagram of the toothbrush head provided in an embodiment of the present utility model;

[0018] Figure 2 This is an exploded view of the toothbrush head provided in an embodiment of this utility model;

[0019] Figure 3 This is a perspective view of the brush head holder and bristle assembly provided in an embodiment of the present utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the brush head holder provided in an embodiment of this utility model;

[0021] Figure 5 A cross-sectional view of the brush head holder and bristle assembly provided in this embodiment of the present invention.

[0022] The labels for the attached figures are as follows:

[0023] 100. Toothbrush head;

[0024] 1. Brush head holder; 11. Plate; 111. Connecting part; 1111. Positioning groove; 112. Mounting part; 1121. Mounting groove; 12. Connecting arm; 113. Receiving groove; 1131. Through port; 114. Mounting cavity; 13. Universal joint; 2. Brush bristle assembly; 21. First bristle component; 22. Second bristle component; 3. Connecting rod; 4. Positioning rod; 41. Positioning plate; 5. Brush rod; 51. Rotation groove. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] This utility model embodiment provides a toothbrush head 100, such as Figures 1 to 5 As shown, the toothbrush head 100 includes a brush head holder 1 and a bristle assembly 2. The brush head holder 1 has two oppositely arranged receiving grooves 113 for accommodating upper and lower jaw teeth; and a mounting cavity 114 is defined between the two receiving grooves 113. Each receiving groove 113 has an opening 1131 on both sides in a first direction. The bristle assembly 2 includes four first bristle elements 21 and second bristle elements 22. The four first bristle elements 21 are respectively disposed within the two receiving grooves 113 in a first direction (…). Figure 1The second bristle 22 is rotatably disposed in the mounting cavity 114 and at least partially located in the receiving groove 113 for cleaning teeth, and the axis of rotation of the second bristle 22 is perpendicular to the first direction so that the second bristle 22 can discharge the brushed dirt from the opening 1131.

[0027] Specifically, the brush head holder 1 has receiving grooves 113 arranged opposite to each other on both sides. During use, the brush head holder 1 can be inserted into the user's mouth, allowing the upper and lower teeth to be placed into the receiving grooves 113 along the first direction, so that the bristle assembly 2 can clean the upper and lower teeth simultaneously. Specifically, the bristle assembly 2 includes four first bristle pieces 21 and two second bristle pieces 22. The four first bristle pieces 21 are respectively disposed on both sides of the two receiving grooves 113 in the first direction, so that the four first bristle pieces 21 cooperate to clean the inner and outer surfaces of the upper and lower teeth simultaneously. A mounting cavity 114 is defined between the two receiving grooves 113. The second bristle pieces 22 are rotatably disposed in the mounting cavity 114 and at least partially located in the receiving grooves 113, so that the second bristle pieces 22 can clean the occlusal surfaces of the upper and lower teeth in the receiving grooves 113. Thus, the bristle assembly 2 can clean all surfaces of the upper and lower teeth simultaneously, improving the cleaning efficiency of the toothbrush head 100.

[0028] Furthermore, since the receiving groove 113 has openings 1131 on both sides in the first direction, and the rotation axis of the second bristle component 22 is perpendicular to the first direction, the second bristle component 22 can discharge the dirt brushed off by the bristle assembly 2 through the openings 1131 during the cleaning process, preventing dirt from being retained between the bristles and in the receiving groove 113, so as to prevent the dirt from rubbing against the tooth surface repeatedly under the action of the bristles, thereby ensuring the cleaning effect of the toothbrush head 100.

[0029] Furthermore, as one specific implementation method in some embodiments of this utility model, such as Figures 1 to 5 As shown, the brush head holder 1 includes two plates 11 arranged opposite to each other and two connecting arms 12. Each plate 11 includes a connecting part 111 and a mounting part 112 located on both sides of the connecting part 111. The two ends of the connecting arms 12 are respectively connected to the connecting parts 111 of the two plates 11. The connecting arms 12 and the mounting parts 112 define a receiving groove 113, and the connecting parts 111 and the connecting arms 12 define a mounting cavity 114.

[0030] Specifically, by implementing this embodiment, the connecting arm 12 and the plate 11 can be stably connected, ensuring the stability of the brush head holder 1 structure. Furthermore, the cooperation between the connecting arm 12 and the plate 11 allows the mounting portion 112 of the connecting arm 12 and the plate 11 to define the receiving groove 113, and the connecting portion 111 of the plate 11 and the connecting arm 12 to define the mounting cavity 114. This makes the structure of the brush head holder 1 more compact, reducing its volume and allowing it to easily extend into the user's mouth to clean teeth.

[0031] Furthermore, as one specific implementation method in some embodiments of this utility model, such as Figures 1 to 5 As shown, the inner sidewall of the mounting part 112 is provided with a mounting groove 1121, and the first bristle 21 is detachably disposed in the mounting groove 1121.

[0032] Specifically, compared to directly embedding the bristles into the inner wall of the mounting portion 112, this embodiment provides a mounting groove 1121 on the inner wall of the mounting portion 112, and the first bristle component 21 is detachably disposed in the mounting groove 1121. This allows the first bristle component 21 to be used as an accessory, making it easier to install on the inner wall of the mounting portion 112. This reduces the difficulty of setting up the first bristle component 21 and allows the first bristle component 21 and the brush head holder 1 to be manufactured and assembled separately, improving production efficiency and flexibility. On the other hand, it facilitates the replacement of the first bristle component 21, thereby avoiding the need to replace the entire toothbrush head 100 due to wear of the first bristle component 21. It also allows users to choose different types of first bristle components 21 according to their needs (e.g., soft bristles or hard bristles), thus enabling personalized and diversified choices for users.

[0033] Furthermore, as one specific implementation method in some embodiments of this utility model, such as Figures 1 to 5 As shown, the toothbrush head 100 also includes a connecting rod 3. Inside the mounting cavity 114, the two ends of the connecting rod 3 are respectively connected to two connecting parts 111, and the second bristle 22 is rotatably sleeved on the connecting rod 3.

[0034] Specifically, the toothbrush head 100 also includes a connecting rod 3. Inside the mounting cavity 114, the two ends of the connecting rod 3 are respectively connected to two connecting parts 111. The second bristle component 22 is rotatably sleeved on the connecting rod 3 so that the rotation axis of the second bristle component 22 can be perpendicular to the first direction. Thus, during the cleaning process, the dirt brushed off by the bristle assembly 2 can be discharged from the opening 1131 through the rotation of the second bristle component 22.

[0035] Furthermore, as one specific implementation method in some embodiments of this utility model, such as Figures 1 to 5As shown, the toothbrush head 100 also includes two positioning rods 4. One end of the positioning rod 4 is provided with a positioning piece 41. The inner side of the connecting part 111 is provided with a positioning groove 1111. The positioning piece 41 is located in the positioning groove 1111. The other end of the positioning rod 4 abuts against the positioning piece 41 of the other positioning rod 4. The two positioning rods 4 are sequentially sleeved on the connecting rod 3. The second bristle 22 is rotatably sleeved on the outer positioning rod 4. The second bristle 22 is limited to the two positioning pieces 41.

[0036] Specifically, by implementing this embodiment, the positioning plates 41 of the two positioning rods 4 can be tightly connected to the inner side of the connecting portion 111 of the two plates 11, ensuring that the second bristle 22 can be rotatably sleeved on the outer positioning rods 4, thereby enhancing the stability of the rotational structure of the second bristle 22. Furthermore, the second bristle 22 can be confined between the two positioning plates 41 to prevent the second bristle 22 from shaking or shifting during rotation, ensuring the cleaning effect of the second bristle 22 during brushing.

[0037] Furthermore, as one specific implementation method in some embodiments of this utility model, such as Figures 1 to 5 As shown, the two mounting portions 112 located on the same side of the second brush member 22 are obliquely arranged and inclined towards the outside of the receiving groove 113.

[0038] Specifically, the two mounting portions 112 located on the same side of the second bristle component 22 are obliquely arranged and tilted towards the outside of the receiving groove 113, so that when the brush head holder 1 is inserted into the user's mouth, the upper and lower jaw teeth can be more easily received in the receiving groove 113 for cleaning by the bristle assembly 2.

[0039] Furthermore, as one specific implementation method in some embodiments of this utility model, such as Figures 1 to 4 As shown, the brush head holder 1 is a one-piece molded structure.

[0040] Specifically, the brush head frame 1 is integrally formed, so there is no need to set an additional connecting structure between the connecting arm 12 and the connecting part 111 of the plate 11. The entire brush head frame 1 can be a whole structure, which can avoid the brush head frame 1 from falling apart due to the loosening of the connecting structure between the connecting arm 12 and the connecting part 111, and effectively improve the durability of the brush head frame 1.

[0041] Furthermore, as one specific implementation method in some embodiments of this utility model, such as Figures 1 to 5 As shown, the toothbrush head 100 also includes a brush handle 5. The brush head holder 1 is provided with a universal joint 13 along the first direction. One end of the brush handle 5 is provided with a rotating groove 51. The ball end of the universal joint 13 is rotatably connected to the rotating groove 51. The other end of the brush handle 5 is used for detachable connection to the drive assembly.

[0042] Specifically, the brush head holder 1 is provided with a universal joint 13 along the first direction, and one end of the brush rod 5 is provided with a rotating groove 51. The ball end of the universal joint 13 is rotatably connected in the rotating groove 51, so that the brush head holder 1 can rotate freely at various angles along the brush rod 5, thereby increasing the flexibility and freedom of the brush head holder 1, so that the brush head holder 1 can better adapt to the user's oral cavity and achieve multi-angle cleaning.

[0043] Furthermore, the other end of the brush handle 5 can be used for a detachable connection to the drive assembly, allowing users or manufacturers to easily combine the brush head 100 and the drive assembly to form a complete electric toothbrush. The detachable design also means that when the brush head 100 wears out or needs replacement, only the brush head 100 needs to be replaced, rather than the entire electric toothbrush, thus saving on replacement costs.

[0044] Furthermore, as one specific implementation method in some embodiments of this utility model, such as Figures 1 to 5 As shown, the toothbrush head 100 also includes a brush handle 5. The brush head holder 1 is provided with a universal joint 13 along the first direction. One end of the brush handle 5 is provided with a rotating groove 51. The ball end of the universal joint 13 is rotatably connected in the rotating groove 51. The brush handle 5 is a hand grip for manual holding.

[0045] Specifically, by implementing this embodiment, the brush handle 5 can be directly set as a hand grip so that the entire toothbrush head 100 can be used as a regular manual toothbrush, allowing the user to hold the toothbrush head 100 with the brush handle 5 to clean their teeth.

[0046] This utility model also provides an electric toothbrush, including the toothbrush head 100 as described above. The beneficial effects of using the toothbrush head 100 in the electric toothbrush have been explained in the description of the toothbrush head 100 above, and will not be repeated here.

[0047] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A toothbrush head characterized by, The toothbrush head comprises: a brush head frame, two sides of which are provided with accommodation grooves for accommodating upper and lower jaw teeth, and an installation cavity is defined between the two accommodation grooves, and both sides of the accommodation grooves in a first direction are provided with through openings; a bristle assembly, which comprises four first bristle pieces and a second bristle piece, the four first bristle pieces are arranged on both sides of the two accommodation grooves in the first direction for cleaning teeth, the second bristle piece is rotationally arranged in the installation cavity and at least partially located in the accommodation grooves for cleaning teeth, and the rotation axis of the second bristle piece is perpendicular to the first direction, so that the second bristle piece can discharge the dirt brushed off from the through openings.

2. The toothbrush head of claim 1, wherein, The brush head frame comprises two oppositely arranged plate bodies and two connecting arms, the plate body comprises a connecting portion and installation portions located on both sides of the connecting portion, the connecting arms are connected to the connecting portions of the two plate bodies at both ends, and the connecting arms and the installation portions define the accommodation grooves, and the connecting portions and the connecting arms define the installation cavity.

3. The toothbrush head of claim 2, wherein, An inner side wall of the installation portion is provided with an installation groove, and the first bristle pieces are detachably arranged in the installation groove.

4. The toothbrush head of claim 2, wherein, A connecting rod is further arranged in the installation cavity, both ends of the connecting rod are connected to the two connecting portions, and the second bristle piece is rotationally arranged on the connecting rod.

5. The toothbrush head of claim 4, wherein, Two positioning rods are further arranged, one end of the positioning rod is provided with a positioning piece, an inner side of the connecting portion is provided with a positioning groove, the positioning piece is located in the positioning groove, the other end of the positioning rod abuts against the positioning piece of the other positioning rod, and the two positioning rods are sequentially arranged on the connecting rod, the second bristle piece is rotationally arranged on the outer positioning rod, and the second bristle piece is limited between the two positioning pieces.

6. The toothbrush head of any one of claims 2-5, wherein, The two installation portions located on the same side of the second bristle piece are obliquely arranged and inclined towards the outside of the accommodation grooves.

7. The toothbrush head of claim 6, wherein, The brush head frame is integrally formed.

8. The toothbrush head of any one of claims 1-5, wherein, A brush rod is further arranged, the brush head frame is provided with a universal shaft in the first direction, one end of the brush rod is provided with a rotating groove, the ball head end of the universal shaft is rotationally connected in the rotating groove, and the other end of the brush rod is used for detachably connecting a driving assembly.

9. The toothbrush head of any one of claims 1-5, wherein, A brush rod is further arranged, the brush head frame is provided with a universal shaft in the first direction, one end of the brush rod is provided with a rotating groove, the ball head end of the universal shaft is rotationally connected in the rotating groove, and the other end of the brush rod is used for detachably connecting a driving assembly.

10. An electric toothbrush characterized by comprising: The toothbrush head of any one of claims 1-8. The toothbrush head of any one of claims 1-8.

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