New electric toothbrush head

The innovative electric toothbrush head with flexible frames and elastic connection addresses the deformation issue of conventional designs, ensuring effective tooth cleaning by conforming to the user's teeth and oral cavity shape.

JP3255836UActive Publication Date: 2026-05-15深せん市美堅特科技有限公司
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Utility models
Current Assignee / Owner
深せん市美堅特科技有限公司
Filing Date
2026-03-13
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Conventional electric toothbrush heads with arc-shaped double-sided brush heads deform slightly due to their shape and material elasticity, failing to conform well to the user's teeth, leading to inadequate cleaning.

Method used

The new electric toothbrush head features an arc-shaped component with flexible outer and back frames connected by an elastic part, allowing the frames to deform elastically to conform to the user's teeth and oral cavity shape, with side cleaning brushes attached to these frames.

Benefits of technology

The design ensures thorough cleaning by allowing the brush to adhere well to the teeth, overcoming the limitations of shape and material elasticity, resulting in improved cleaning efficacy.

✦ Generated by Eureka AI based on patent content.

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Abstract

We offer a new electric toothbrush head. [Solution] The new electric toothbrush head of this invention includes an arc-shaped component 1 and two cleaning bodies 2a and 2b. A main cleaning brush is attached to the arc-shaped component, which includes an outer frame 12a and a back frame 12b. An elastic portion 12d is formed between the outer frame and the back frame, with one end of the elastic portion connected to the outer frame and the other end connected to the back frame. Both the outer frame and the back frame are flexible. Side cleaning brushes are attached to the cleaning bodies, with one cleaning body connected to the outer frame and the other cleaning body connected to the back frame. The new electric toothbrush head of this invention can clean the user's teeth more effectively by deforming the electric toothbrush head to a shape that conforms to the arrangement and shape of the user's teeth.
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Description

Technical Field

[0001] This invention belongs to the technical field of electric toothbrushes, and particularly relates to a new type of electric toothbrush head.

Background Art

[0002] A toothbrush is a necessity for daily life used to remove dirt on the tooth surface. An electric toothbrush is a new product sold in recent years and has revolutionized the oral hygiene field overseas. An electric toothbrush can thoroughly clean teeth by vibrating the brush head at high frequency through the high-speed rotation or vibration of the motor core, and instantaneously converting toothpaste into fine bubbles. The brush head used by current electric toothbrushes is a single-head double-sided brush head or an arc-shaped double-sided brush head. In particular, when using an arc-shaped double-sided brush head, the vibration provided by the electric toothbrush can effectively clean the user's teeth and improve the tooth cleaning efficiency.

[0003] The electric toothbrush head used in the conventional technology of electric toothbrushes, that is, an arc-shaped double-sided brush head, usually includes an arc-shaped part and cleaning bodies attached to the outer and inner (both sides) of the arc-shaped part. The cleaning body fixed to the inner side of the arc-shaped part is the inner cleaning body, and the cleaning body fixed to the outer side of the arc-shaped part is the outer cleaning body.

[0004] In the electric toothbrush head of the conventional technology, when the user brushes teeth with the electric toothbrush head, the electric toothbrush head will deform slightly due to the shape of the arc-shaped part itself and the elasticity of the material of the arc-shaped part itself, and the electric toothbrush head can deform slightly into a shape that conforms to the tooth arrangement and shape of the user. Therefore, when brushing the user's teeth with the electric toothbrush head of the conventional technology, the electric toothbrush head cannot be well adhered to the tooth arrangement and shape, and the user's teeth cannot be well cleaned.

Summary of the Invention

Problems to be Solved by the Invention

[0005] This invention provides a new type of electric toothbrush head that can be deformed to conform to the arrangement and shape of the user's teeth, thereby ensuring that the user's teeth are cleaned more effectively. [Means for solving the problem]

[0006] The technical details of the novel electric toothbrush head according to the embodiment of the present invention are as follows: The new electric toothbrush head of this invention includes an arc-shaped component and two cleaning bodies. A main cleaning brush is attached to the arc-shaped component, and the arc-shaped component includes a central arc-shaped section and two side arc-shaped sections, the two side arc-shaped sections each connected to both ends of the central arc-shaped section. The side arc-shaped sections include an outer frame and a back frame, with an elastic section formed between the outer frame and the back frame, one end of the elastic section connected to the outer frame and the other end of the elastic section connected to the back frame. Both the outer frame and the back frame are flexible, allowing them to deform toward each other and return to their original shape. The two cleaning bodies are connected to both sides of the arc-shaped component, and side cleaning brushes are attached to the cleaning bodies, each cleaning body including one central cleaning area and two side cleaning areas. The two side cleaning areas are located on either side of the central cleaning area, and the central cleaning areas of both cleaning bodies are connected to the central arc-shaped section, the side cleaning area of ​​one cleaning body is connected to the outer frame, and the side cleaning area of ​​the other cleaning body is connected to the rear frame.

[0007] In an optional example of the present invention, the side arc-shaped portion further includes a central frame, the central frame being flexible. One end of the central frame is connected to the central arc-shaped portion, the other end of the central frame is connected to an elastic portion, and the main cleaning brush is mounted on the central frame.

[0008] In the selectable examples of the present invention, a connecting portion is formed between the outer frame and the central frame, and a connecting portion is also formed between the rear frame and the central frame. The connecting portion is located between the central arc-shaped portion and the elastic portion.

[0009] In selectable examples of the present invention, the elastic portion is a flexible elastic portion, and the elastic portion is formed in the shape of a wave.

[0010] In an optional example of the present invention, a central connecting recess is formed in the central cleaning area, and a side connecting recess is formed in the side cleaning area. When connecting the arc-shaped component and the cleaning body, the central arc-shaped portion is inserted into the central connecting recess and fixed in place, and the two side arc-shaped portions are inserted into the two side connecting recesses and fixed in place.

[0011] In an optional example of the present invention, the arc-shaped component has a connecting portion, and when connecting the side arc-shaped portion to the side connecting recess, the connecting portion is inserted into the side connecting recess. A connecting groove is formed in the connecting portion, and a connecting rod is fixed to the cleaning body. When inserting the connecting portion into the side connecting recess, the side arc-shaped portion is fixedly connected to the side connecting recess by inserting the connecting rod into the connecting groove.

[0012] In the selectable examples of the present invention, the opening direction of each coupling groove located on the outside of the arc-shaped component is opposite to the opening direction of each coupling groove located on the back side of the arc-shaped component. The opening directions of each coupling groove located on the back side of the arc-shaped component all face toward one end away from the central arc-shaped portion, while the opening directions of each coupling groove located on the outside of the arc-shaped component all face toward one end closer to the central arc-shaped portion.

[0013] In an optional example of the present invention, the cleaning body has a screw hole, and the screw hole extends from the cleaning body to the central arc-shaped portion. The central cleaning area and the central arc-shaped portion can be fixedly connected together by screwing a bolt into the screw hole of the cleaning body.

[0014] In an optional example of the present invention, the cleaning body includes a main body and a cleaning section, and a fixed tank is formed on the main body. When the main body and the cleaning section are joined, the cleaning section is inserted into the fixed tank and fixedly joined. The fixed tank includes a central fixed section and two side fixed sections, the central fixed section being formed on the main body of the central cleaning area, and the two side fixed sections being formed on the main body of each of the two side cleaning areas. Both of the two side fixed sections are in communication with the central fixed section. The cleaning section formed in the central cleaning area is inserted into the central fixed section, and the cleaning sections formed in the two side cleaning areas are each inserted into the two side fixed sections.

[0015] Another embodiment of the novel electric toothbrush head includes an arc-shaped component and two cleaning bodies. A main cleaning brush is attached to the arc-shaped component, which includes an outer frame and a back frame, with an elastic section formed between the outer frame and the back frame, one end of which is connected to the outer frame and the other end of which is connected to the back frame. Both the outer frame and the back frame are flexible, allowing them to deform toward each other and return to their original shapes. Side cleaning brushes are attached to the cleaning bodies, one of which is connected to the outer frame and the other to the back frame.

[0016] In the new electric toothbrush head of this invention, both the outer frame and the back frame are flexible, and the outer frame and the back frame are connected by an elastic part. Therefore, when a user brushes their teeth with the new electric toothbrush head of this invention, the two lateral arc-shaped parts elastically deform toward each other due to the pressure of the user's cheek muscles, and the arc-shaped parts can be well deformed to conform to the arrangement of the user's teeth and the shape of the oral cavity. The outer frame elastically deforms toward the back frame due to the pressure of the user's cheek muscles, and the size between the lateral cleaning area connected to the outer frame and the lateral cleaning area connected to the back frame decreases. As a result, the cleaning brush on the lateral cleaning area adheres well to the surface of the user's teeth, allowing the user's teeth to be brushed more thoroughly. When a user brushes their teeth with the electric toothbrush head, the electric toothbrush head avoids the problem of the electric toothbrush head being able to deform only slightly due to the shape of the arc-shaped parts themselves and the elasticity of the material of the arc-shaped parts, and allows the electric toothbrush head to be well deformed to conform to the arrangement and shape of the user's teeth. As a result, when the user brushes their teeth with the electric toothbrush head, the head adheres well to the arrangement and shape of the teeth, allowing for thorough cleaning of the user's teeth. [Effects of the Invention]

[0017] The novel electric toothbrush head according to the embodiment of the present invention can achieve the following effects of the invention. Both the outer frame and the back frame are flexible, and the outer frame and the back frame are connected by an elastic part. Therefore, when a user brushes their teeth with the novel electric toothbrush head of the present invention, the two lateral arc-shaped parts elastically deform toward each other due to the pressure of the user's cheek muscles, and the arc-shaped parts can be well deformed to a shape that conforms to the arrangement of the user's teeth and the shape of the oral cavity. When the two lateral arc-shaped parts elastically deform toward each other due to the pressure of the user's cheek muscles, and the shape of the arc-shaped parts deforms to a shape that conforms to the arrangement of the user's teeth and the shape of the oral cavity, the outer frame elastically deforms toward the back frame due to the pressure of the user's cheek muscles, and the size between the lateral cleaning area connected to the outer frame and the lateral cleaning area connected to the back frame decreases. As a result, the cleaning brush on the lateral cleaning area adheres well to the surface of the user's teeth, and the user's teeth can be brushed more thoroughly. When a user brushes their teeth with an electric toothbrush head, the design prevents the electric toothbrush head from being limited in deformation due to the shape of the arc-shaped component itself and the elasticity of the material, allowing the electric toothbrush head to deform well to conform to the arrangement and shape of the user's teeth. As a result, when a user brushes their teeth with an electric toothbrush head, the electric toothbrush head adheres well to the arrangement and shape of the teeth, allowing for thorough cleaning of the user's teeth. [Brief explanation of the drawing]

[0018] [Figure 1] This is a perspective view showing the structure of a new electric toothbrush head according to an embodiment of the present invention. [Figure 2] This is an exploded view showing the structure of a new electric toothbrush head according to an embodiment of the present invention. [Figure 3] This is a perspective view showing the structure of the arc-shaped component of a new electric toothbrush head according to an embodiment of the present invention. [Figure 4] This is a front view showing the structure of the cleaning body of a new type of electric toothbrush head according to an embodiment of the present invention. [Figure 5]It is a diagram showing that the arc-shaped component and the cleaning body of the new electric toothbrush head according to an embodiment of the present invention are integrally coupled. [Figure 6] It is an exploded view showing the structure of the outer cleaning body of the new electric toothbrush head according to an embodiment of the present invention. [Figure 7] It is an exploded view showing the structure of the back cleaning body of the new electric toothbrush head according to an embodiment of the present invention. [Figure 8] It is a perspective view showing the structure of the main brush hole of the new electric toothbrush head according to an embodiment of the present invention. [Figure 9] It is a perspective view showing the structure of the main cleaning brush of the new electric toothbrush head according to an embodiment of the present invention. [Figure 10] It is a perspective view showing the structure of the new electric toothbrush head according to an embodiment of the present invention.

Modes for Carrying Out the Invention

[0019] Hereinafter, the present invention will be described in more detail by referring to FIGS. 1 to 10.

[0020] In an embodiment of the present invention, a new type of electric toothbrush head is disclosed. Referring to FIGS. 1 to 4, the new type of electric toothbrush head (A new type of electric toothbrush head) of the present invention includes an arc-shaped component 1 and two cleaning bodies 2. A main cleaning brush 13 is attached to the arc-shaped component 1, and the arc-shaped component 1 includes the back side 101 of the arc-shaped component and the outer side 102 of the arc-shaped component facing away from the back side 101 of the arc-shaped component. The arc-shaped component 1 includes a central arc-shaped part 11 and two side arc-shaped parts 12, and the two side arc-shaped parts 12 are respectively connected to both ends of the central arc-shaped part 11. The side arc-shaped part 12 includes an outer frame 12a and a back frame 12b, and one end of the outer frame 12a and one end of the back frame 12b are both connected to the central arc-shaped part 11. An elastic part 12d is formed between the outer frame 12a and the back frame 12b, one end of the elastic part 12d is connected to the outer frame 12a, and the other end of the elastic part 12d is connected to the back frame 12b. Since both the outer frame 12a and the back frame 12b have flexibility, when the outer frame 12a and the back frame 12b are deformed in a direction approaching each other, the outer frame 12a and the back frame 12b can be restored to their original shapes due to flexibility. One cleaning body 2 is the back cleaning body 2a, and the other cleaning body 2 is the outer cleaning body 2b. The outer cleaning body 2b is connected to the outer side 102 of the arc-shaped component, and the back cleaning body 2a is connected to the back side 101 of the arc-shaped component. A side cleaning brush 23 is attached to the cleaning body 2, and the cleaning body 2 includes one central cleaning area 201 and two side cleaning areas 202. The two side cleaning areas 202 are located on both sides of the central cleaning area 201, and the central cleaning areas 201 of the two cleaning bodies 2 are both connected to the central arc-shaped part 11, the side cleaning area 202 of the back frame 12b is connected to the outer frame 12a, and the side cleaning area 202 of the back cleaning body 2a is connected to the back frame 12b. Since the cleaning body 2 has flexibility, when the back cleaning body 2a or the outer cleaning body 2b is deformed, the cleaning body 2 can also be deformed together.

[0021] Referring to Figures 1 to 4, in the embodiment of the present invention, the side arc-shaped portion 12 further includes a central frame 12c, the central frame 12c being flexible. One end of the central frame 12c is connected to the central arc-shaped portion 11, and the other end of the central frame 12c is connected to the elastic portion 12d, and the main cleaning brush 13 is mounted on the central frame 12c. It should be noted that when the side arc-shaped portion 12 is composed of an outer frame 12a, a back frame 12b, and a central frame 12c, the main cleaning brush 13 is mounted on the central frame 12c. When the side arc-shaped portion 12 is composed of an outer frame 12a and a back frame 12b, the main cleaning brush 13 is mounted on either the outer frame 12a or the back frame 12b, or the main cleaning brush 13 is mounted on both the outer frame 12a and the back frame 12b.

[0022] Referring to Figures 1 to 4, in the embodiment of the present invention, connecting portions 12e are formed between the outer frame 12a and the central frame 12c, and between the back frame 12b and the central frame 12c. By forming the connecting portion 12e between the central arc-shaped portion 11 and the elastic portion 12d, the stability of the connection between the outer frame 12a and the central frame 12c, and the stability of the connection between the back frame 12b and the central frame 12c can be improved. It should be noted that the formation of the connecting portion 12e should not affect the elastic deformation of the two side arc-shaped portions 12 in the direction of approaching each other, or affect the elastic deformation of the outer frame 12a and the back frame 12b in the direction of approaching each other. For example, the connecting portion 12e can be an elastic connecting portion. In that case, the connecting portion 12e deforms as the two side arc-shaped portions 12 deform, and it is possible to avoid the connecting portion 12e affecting the deformation of the two side arc-shaped portions 12.

[0023] Referring to Figures 1 to 4, in the embodiment of the present invention, the elastic part 12d is a flexible elastic part, and the elastic part 12d can be formed in the shape of a wave. In that case, the elastic part 12d can provide the elasticity necessary for the deformation and return of the outer frame 12a and the back frame 12b. It should be noted that the elasticity necessary for the deformation and return of the outer frame 12a and the back frame 12b is provided because the outer frame 12a and the back frame 12b are flexible. In other embodiments, the elastic part 12d is an elastic part such as a spring, which can provide the elasticity necessary for the deformation and return of the outer frame 12a and the back frame 12b.

[0024] Referring to Figures 4 to 6, in this embodiment of the present invention, a central connecting recess 222 is formed in the central cleaning area 201, and a side connecting recess 212 is formed in the side cleaning area 202. When connecting the arc-shaped component 1 and the cleaning body 2, the central arc-shaped portion 11 can be inserted into the central connecting recess 222 and fixedly connected, and the two side arc-shaped portions 12 can be inserted into the two side connecting recesses 212 respectively and fixedly connected. In this embodiment of the present invention, a connecting portion 122 is formed in the arc-shaped component 1. When connecting the side arc-shaped portion 12 to the side connecting recess 212, the connecting portion 122 is inserted into the side connecting recess 212. A connecting tank 1221 is formed in the connecting portion 122, and a connecting rod 221 is fixed to the cleaning body 2. When inserting the connecting portion 122 into the side connecting recess 212, the side arc-shaped portion 12 is fixedly connected to the side connecting recess 212 by inserting the connecting rod 221 into the connecting groove 1221. It should be noted that connecting portions 122 are formed on the back side 101 and the outside side 102 of the arc-shaped component, respectively. The connecting portion 122 on the back side 101 of the arc-shaped component is inserted into the side connecting recess 212 of the back cleaning body 2a, and the connecting portion 122 on the outside side 102 of the arc-shaped component is inserted into the side connecting recess 212 of the outer cleaning body 2b. In this embodiment of the present invention, screw holes are formed in the cleaning body 2 and the central arc-shaped portion 11, respectively. For example, a screw hole 224 is formed in the cleaning body 2, and the position of the screw hole 224 in the cleaning body 2 corresponds to the position of the screw hole in the central arc-shaped portion 11. In this case, the central cleaning area 201 and the central arc-shaped part 11 can be fixedly joined together by screwing the bolt into the screw hole 224 of the cleaning body 2 and the screw hole of the central arc-shaped part 11. It should be noted that after screwing the bolt into the screw hole 224 of the cleaning body 2, the circular part that seals the screw hole 224 can be joined to the screw hole 224 in an interference fit state, thereby preventing contact between the bolt inside the screw hole 224 and the outside air. In this embodiment of the present invention, the central arc-shaped part 11 can be inserted into the central connecting recess 222, and the side arc-shaped part 12 can be inserted into the side connecting recess 212, after which the cleaning body 2 and the arc-shaped part 1 can be fixedly joined together together by ultrasonic welding.In this embodiment, when fixing the cleaning body 2 and the arc-shaped component 1 together, using the three fixing connection methods simultaneously allows for a more stable fixing connection between the cleaning body 2 and the arc-shaped component 1. In other embodiments, any one of the three fixing connection methods can be used as the method for fixing the cleaning body 2 and the arc-shaped component 1 together.

[0025] Referring to Figure 3, in this embodiment of the present invention, the opening direction of each coupling groove 1221 located on the outer side 102 of the arc-shaped component is opposite to the opening direction of each coupling groove 1221 located on the back side 101 of the arc-shaped component. Specifically, the opening direction of each coupling groove 1221 located on the back side 101 of the arc-shaped component is directed toward one end away from the central arc-shaped portion 11, while the opening direction of each coupling groove 1221 located on the outer side 102 of the arc-shaped component is directed toward one end approaching the central arc-shaped portion 11.

[0026] Referring to Figures 6 and 7, in this embodiment of the present invention, the cleaning body 2 includes a main body 21 and a cleaning unit 22, and a fixed tank 211 is formed on the main body 21. When connecting the main body 21 and the cleaning unit 22, the cleaning unit 22 can be inserted into the fixed tank 211 and then fixedly connected to the fixed tank 211. The fixed tank 211 includes a central fixed part 2111 and two side fixed parts 2112. The central fixed part 2111 is formed in the main body 21 of the central cleaning area 201, and the two side fixed parts 2112 are each formed in the main body 21 of the two side cleaning areas 202. Both side fixed parts 2112 are in communication with the central fixed part 2111. The cleaning unit 22 formed in the central cleaning area 201 is inserted into the central fixed part 2111, and the cleaning units 22 formed in the two side cleaning areas 202 are each inserted into the two side fixed parts 2112.

[0027] Referring to Figure 8, in this embodiment of the present invention, the arc-shaped component 1 is formed in a U-shape, the main cleaning brush 13 is composed of a plurality of main cleaning hair bundles 131, and a plurality of main brush holes 121 are formed in each of the two side arc-shaped portions 12. Each cleaning hair bundle is inserted into and fixed in each main brush hole 121. Each main brush hole 121 is located on both sides in the thickness direction of the arc-shaped component 1. By having different axial directions for each main brush hole 121 located on both sides in the thickness direction of the arc-shaped component 1, the depth of each main brush hole 121 can be made deeper.

[0028] Referring to Figure 9, in this embodiment of the present invention, the cleaning section 22 has a plurality of side brush holes 223, and the cleaning body 2 has a side cleaning brush 23 attached to it. The side cleaning brush 23 is composed of a plurality of side cleaning hair bundles 231. When attaching the side cleaning brush 23 to the cleaning body 2, each side cleaning hair bundle 231 can be inserted into each side brush hole 223 and fixed in place. Each side brush hole 223 is arranged symmetrically on both sides of the central surface in the thickness direction of the arc-shaped component 1. Each side brush hole 223 located on both sides of the central surface in the thickness direction of the arc-shaped component 1 is inclined away from the central surface of the arc-shaped component 1. Specifically, each side brush hole 223 located on both sides of the central surface in the thickness direction of the arc-shaped component 1 is inclined away from the central surface in the thickness direction of the arc-shaped component 1. Each side brush hole 223 constitutes multiple rows of side brush holes 223, and the side brush holes 223 in each row are arranged to be offset from each other. An annular groove 111 is formed in the central arc-shaped section 11, and the annular groove 111 extends toward the outer cleaning body 2b and penetrates the outer cleaning body 2b. By connecting the electric toothbrush to the annular groove 111, the electric toothbrush head and the electric toothbrush can be connected more stably.

[0029] Figure 10 is a perspective view showing the structure of a new electric toothbrush head according to another embodiment of the present invention. The parts indicated by the same reference numerals in each drawing perform the same function. The difference between the electric toothbrush head according to the embodiment in Figure 10 and the electric toothbrush head according to the embodiment in Figure 1 is that the central arc-shaped part 11 is not formed in the arc-shaped part 1 of this embodiment. That is, the arc-shaped part 1 not only includes the outer frame 12a and the back frame 12b, but can also further include a central frame 12c formed between the outer frame 12a and the back frame 12b. The outer frame 12a, the back frame 12b, and the central frame 12c are all formed in an arc shape. An elastic part 12d is formed between the outer frame 12a and the back frame 12b, one end of the elastic part 12d is connected to the outer frame 12a, and the other end of the elastic part 12d is connected to the back frame 12b. Both the outer frame 12a and the back frame 12b are flexible, allowing them to deform in a direction that brings them closer together and then return to their original shape. The back cleaning body 2a is connected to the outer frame 12a, and the outer cleaning body 2b is connected to the back frame 12b. A coupling structure 3 is formed on the outside of the outer frame 12a. The coupling structure 3 is formed to penetrate the outer cleaning body 2b, allowing the electric toothbrush to be coupled to the coupling structure 3, thereby more stably connecting the electric toothbrush head and the electric toothbrush. A screw hole is formed on the coupling structure 3, allowing the outer cleaning body 2b to be coupled to the screw hole.

[0030] The operating principle of the new electric toothbrush head according to an embodiment of the present invention is as follows. As described above, both the outer frame 12a and the back frame 12b are flexible, and the outer frame 12a and the back frame 12b are connected by an elastic part 12d. Therefore, when a user brushes their teeth with the new electric toothbrush head of the present invention, the two lateral arc-shaped parts 12 elastically deform toward each other due to the pressure of the user's cheek muscles, and the arc-shaped part 1 can be well deformed into a shape that conforms to the arrangement of the user's teeth and the shape of the oral cavity. When the two lateral arc-shaped parts 12 elastically deform toward each other due to the pressure of the user's cheek muscles, and the shape of the arc-shaped part 1 deforms into a shape that conforms to the arrangement of the user's teeth and the shape of the oral cavity, the outer frame 12a elastically deforms toward the back frame 12b due to the pressure of the user's cheek muscles, and the size between the lateral cleaning area 202 connected to the outer frame 12a and the lateral cleaning area 202 connected to the back frame 12b decreases. This allows the cleaning brush on the side cleaning area 202 to adhere well to the surface of the user's teeth, enabling a cleaner cleaning. When the user brushes their teeth with the electric toothbrush head, the shape of the arc-shaped component 1 itself and the elasticity of the material of the arc-shaped component 1 prevent slight deformation of the electric toothbrush head, allowing the electric toothbrush head to deform well to conform to the arrangement and shape of the user's teeth. As a result, when the user brushes their teeth with the electric toothbrush head, the electric toothbrush head adheres well to the arrangement and shape of the teeth, enabling a thorough cleaning of the user's teeth.

[0031] While preferred embodiments of the present invention have been described above, the present invention is not limited to the matters described in the embodiments above. Design changes, improvements, substitutions, and modifications can be made to the embodiments above without departing from the spirit of the present invention, and such changes will naturally still fall within the scope defined by the claims of the present invention. [Explanation of Symbols]

[0032] 1. Arc-shaped part 101 Back side of arc-shaped part 102 Outer part of arc-shaped component 11 Central arc-shaped section 111 Circular tank 12 Side arc-shaped section 121 Main brush holes 122 Joint 1221 Binding tank 12a Outer frame 12b Rear frame 12c central frame 12d Elastic part 12e Connecting part 13 Main cleaning brush 131 Main Washing Hair Bundle 2 Cleaning body 2a Backside cleaning body 2b Outer cleaning body 201 Central Washing Area 202 Side cleaning area 21 Main body 211 Fixed tank 2111 Central fixed part 2112 Side fixing part 212 Side connecting recess 22 Cleaning section 221 Connecting rod 222 Central joint recess 223 Side brush holes 224 screw holes 23 Side cleaning brush 231 Side-cleaning hair bundle 3 Bond structure

Claims

1. It includes an arc-shaped component and two cleaning bodies. A main cleaning brush is attached to the arc-shaped component, and the arc-shaped component includes a central arc-shaped section and two side arc-shaped sections, the two side arc-shaped sections each connected to both ends of the central arc-shaped section, the side arc-shaped sections including an outer frame and a back frame, an elastic section formed between the outer frame and the back frame, one end of the elastic section connected to the outer frame and the other end of the elastic section connected to the back frame, and both the outer frame and the back frame are flexible, so that the outer frame and the back frame can be deformed in a direction toward each other and restored to their original shape. A new type of electric toothbrush head characterized in that two cleaning bodies are connected to both sides of an arc-shaped component, side cleaning brushes are attached to the cleaning bodies, each cleaning body includes one central cleaning area and two side cleaning areas, the two side cleaning areas are located on either side of the central cleaning area, both central cleaning areas of the cleaning bodies are connected to a central arc-shaped part, one side cleaning area of ​​the cleaning body is connected to an outer frame, and the other side cleaning area of ​​the cleaning body is connected to a back frame.

2. The novel electric toothbrush head according to claim 1, characterized in that the side arc-shaped portion further includes a central frame, the central frame is flexible, one end of the central frame is connected to the central arc-shaped portion, the other end of the central frame is connected to an elastic portion, and the main cleaning brush is mounted on the central frame.

3. The novel electric toothbrush head according to claim 2, characterized in that a connecting portion is formed between the outer frame and the central frame, a connecting portion is also formed between the back frame and the central frame, and the connecting portion is located between the central arc-shaped portion and the elastic portion.

4. The new electric toothbrush head according to claim 1, characterized in that the elastic part is a flexible elastic part and the elastic part is formed in the shape of a wave.

5. The novel electric toothbrush head according to claim 1, characterized in that a central connecting recess is formed in the central cleaning area, a side connecting recess is formed in the side cleaning area, and when the arc-shaped component and the cleaning body are connected, the central arc-shaped part is inserted into the central connecting recess and fixedly connected, and the two side arc-shaped parts are inserted into the two side connecting recesses respectively and fixedly connected.

6. The arc-shaped component has a connecting portion formed therein, and when the side arc-shaped portion is connected to the side connecting recess, the connecting portion is inserted into the side connecting recess. The new electric toothbrush head according to claim 5, characterized in that a coupling groove is formed in the coupling portion, a coupling rod is fixed to the cleaning body, and when the coupling portion is inserted into the side coupling recess, the side arc-shaped portion is fixedly coupled to the side coupling recess by inserting the coupling rod into the coupling groove.

7. The opening direction of each coupling groove located on the outside of the arc-shaped component is opposite to the opening direction of each coupling groove located on the back side of the arc-shaped component. The novel electric toothbrush head according to claim 6, characterized in that the opening direction of each coupling groove located on the back side of the arc-shaped component is directed toward one end away from the central arc-shaped portion, and the opening direction of each coupling groove located on the outside of the arc-shaped component is directed toward one end approaching the central arc-shaped portion.

8. The new electric toothbrush head according to claim 5, characterized in that a screw hole is formed in the cleaning body, the screw hole extends from the cleaning body to the central arc-shaped portion, and the central cleaning area and the central arc-shaped portion are integrally fixed and connected by screwing a bolt into the screw hole of the cleaning body.

9. The cleaning body includes a main body and a cleaning section, and a fixed tank is formed on the main body. When connecting the main body and the cleaning section, the cleaning section is inserted into the fixed tank and fixed in place. The fixed tank includes a central fixed section and two side fixed sections, the central fixed section being formed in the main body of the central cleaning area, and the two side fixed sections being formed in the main body of each of the two side cleaning areas, and both of the two side fixed sections are in communication with the central fixed section. The new electric toothbrush head according to claim 1, characterized in that the cleaning section formed in the central cleaning area is inserted into the central fixing section, and the cleaning sections formed in the two side cleaning areas are each inserted into the two side fixing sections.

10. It includes an arc-shaped component and two cleaning bodies. A main cleaning brush is attached to the arc-shaped component, and the arc-shaped component includes an outer frame and a back frame, with an elastic portion formed between the outer frame and the back frame, one end of the elastic portion connected to the outer frame, and the other end of the elastic portion connected to the back frame, and both the outer frame and the back frame are flexible, so that the outer frame and the back frame can be deformed in a direction toward the other and restored to their original shape, A new type of electric toothbrush head is characterized in that a side cleaning brush is attached to the cleaning body, one of the cleaning bodies is connected to an outer frame, and the other cleaning body is connected to a back frame.