Toothbrush head and electric toothbrush

Abstract

The utility model discloses a toothbrush head and an electric toothbrush. The toothbrush head comprises a brush rod and a bristle base located at the end of the brush rod, and further comprises a stabilizing piece and a wrapping piece, the stabilizing piece is at least arranged on the bristle base, the wrapping piece is at least connected with the bristle base, and the wrapping piece at least wraps part of the stabilizing piece. The toothbrush head is applied to the electric toothbrush. The toothbrush head can be prevented from deviating in the swinging or vibrating process, it is guaranteed that the swinging axis of the end of the toothbrush head is always kept in the center of the motor shaft, the swinging or vibrating amplitude of the toothbrush head can be effectively controlled, the balance performance of the toothbrush head in the high-speed swinging or vibrating process is improved, the tooth cleaning effect is guaranteed, and meanwhile the tooth cleaning effect is improved. The tooth health of the user is protected. Meanwhile, effective fixation of the stabilizing piece can be achieved by providing the wrapping piece, and the structural stability of the electric toothbrush during high-frequency work is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning and care, in particular to a toothbrush head and an electric toothbrush. Background Art

[0002] The toothbrush head of an existing electric toothbrush is usually driven by a motor to swing or vibrate at a high frequency, thereby cleaning the tooth surface by forming fine foam.

[0003] However, traditional toothbrush heads are usually made of plastic, which has poor hardness and weak deformation resistance. When swung or vibrated at high frequencies, the toothbrush head, especially the swing axis at the end of the toothbrush head, is prone to detachment from the rotating axis of the motor shaft, causing the swing or vibration of the toothbrush head to deviate, and the swing or vibration amplitude to increase uncontrollably, which restricts the balance performance of the toothbrush head during high-speed swing or vibration, affects the teeth cleaning effect, and also poses a safety hazard to the user's dental health. Utility Model Content

[0004] In order to overcome the problem in the prior art that the swing axis at the end of the toothbrush head is separated from the rotation axis of the motor shaft, resulting in the deviation of the swing or vibration of the toothbrush head and the uncontrollable increase in the swing or vibration amplitude, the embodiment of the present utility model provides a toothbrush head on one hand, including a brush rod and a bristle holder located at the end of the brush rod, and also including a stabilizing member and a covering member, the stabilizing member is at least provided on the bristle holder, the covering member is at least connected to the bristle holder, and the covering member at least wraps a portion of the stabilizing member.

[0005] Furthermore, the bristle holder is formed with a countersunk hole on the front for arranging bristles, and the bristle holder is formed with a mounting portion on the back of the countersunk hole, and the stabilizing member is arranged on the back of the bristle holder through the mounting portion.

[0006] Furthermore, the above-mentioned mounting portion is a slot formed on the bristle holder, and the stabilizing member is mounted on the bristle holder by being inserted into the slot.

[0007] Furthermore, the above-mentioned mounting portion includes a side protrusion formed on the back of the brush holder, and also includes a groove formed on the back of the brush holder. The groove on the back of the brush holder and the side protrusion together form the slot, and the notch of the slot is located above the brush holder.

[0008] Furthermore, a step is formed at the connection between the bristle holder and the brush rod, the covering member is arranged on the step and wraps the back side of the bristle holder, and the covering member closes the stabilizing member.

[0009] Furthermore, the above-mentioned covering member includes a covering member body corresponding to the shape of the bristle holder, and a connecting portion extending from the bottom of the covering member body, wherein the connecting portion forms a through hole in the middle for the brush rod to pass through, and the bottom surface of the connecting portion corresponds to the shape of the step.

[0010] Furthermore, the outer contour of the bottom surface of the joint portion is flush with the outer contour of the step.

[0011] Furthermore, the above-mentioned mounting portion is arranged close to the axis of the motor shaft; the brush rod and the bristle holder are made of plastic, and the stabilizing member is made of metal, glass or ceramic.

[0012] Furthermore, the aforementioned covering member is a secondary injection molded member formed on the periphery of the brush rod, the bristle holder and the stabilizing member.

[0013] Another aspect of an embodiment of the present invention provides an electric toothbrush, which includes a battery and a motor powered by the battery, and also includes a toothbrush head as described above, wherein the toothbrush head is driven by the motor.

[0014] The embodiment of the present utility model provides a stabilizing member, which is at least provided on the bristle holder and is made of a hard material, so that the stabilizing member can at least provide a stable supporting force for the toothbrush holder. When dealing with the high-frequency swing or vibration of the toothbrush head, by at least improving the structural strength of the bristle holder, the toothbrush head is prevented from shifting during the swing or vibration process, and the swing axis of the toothbrush head end is ensured to always remain at the center of the motor shaft. This can effectively control the swing or vibration amplitude of the toothbrush head, improve the balance performance of the toothbrush head during high-speed swing or vibration, and protect the user's dental health while ensuring the teeth cleaning effect. At the same time, by providing a covering member, the covering member is at least connected to the bristle holder, and the covering member at least wraps a portion of the stabilizing member. This can achieve effective fixation of the stabilizing member, and improve the structural stability of the electric toothbrush when working at high frequencies. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a three-dimensional diagram of the toothbrush head of the first embodiment of the present invention from one perspective;

[0017] Figure 2 is a three-dimensional diagram of the toothbrush head of the first embodiment of the present invention from another perspective;

[0018] Figure 3 is a three-dimensional diagram of the covering member of the first embodiment of the present invention from one perspective;

[0019] Figure 4 is a three-dimensional view of the covering member of the first embodiment of the present invention from another perspective;

[0020] Figure 5 This is a three-dimensional diagram of the integrally formed brush rod and bristle holder of the first embodiment of the present utility model from one perspective;

[0021] Figure 6 This is a three-dimensional diagram of the integrally formed brush rod and bristle holder of the first embodiment of the present utility model from another perspective;

[0022] Figure 7 It is an exploded view of the toothbrush head of the first embodiment. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] When the embodiments of the present invention mention ordinal numbers such as "first" and "second" (if any), unless they do express the meaning of order according to the context, they should be understood as being merely for the purpose of distinction.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" (if any) should be understood broadly. For example, they may refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0026] First embodiment:

[0027] Please refer to Figures 1 to 3 As shown, an embodiment of the present invention provides a toothbrush head, comprising a brush rod 1 and a bristle holder 2 located at the end of the brush rod 1, and also comprising a stabilizing member 3 and a covering member 4, wherein the stabilizing member 3 is at least arranged on the bristle holder 2, the covering member 4 is at least connected to the bristle holder 2, and the covering member 4 at least wraps a portion of the stabilizing member 3.

[0028] In this embodiment, the bristle holder 2 is formed with a countersunk hole on the front for arranging the bristles 5, and the bristle holder 2 is formed with a mounting portion on the back of the countersunk hole, and the stabilizing member 3 is arranged on the back of the bristle holder 2 through the mounting portion.

[0029] As a specific solution but not limitation, the above-mentioned mounting portion is a slot 6 formed on the bristle holder 2, and the stabilizing member 3 is mounted on the bristle holder 2 by inserting into the slot 6. The method of inserting the stabilizing member 3 into the slot 6 has the advantages of simple structure and convenient assembly.

[0030] Furthermore, the above-mentioned mounting portion includes a side protrusion 61 formed on the back of the bristle holder 2, and also includes a groove formed on the back of the bristle holder 2. The groove on the back of the bristle holder and the side protrusion 61 together form the slot 6. The slot 62 of the slot 6 is located above the bristle holder 2, so that the stabilizer 3 can be disassembled and assembled through the slot 62.

[0031] As a preferred solution but not a limitation, the connection between the bristle holder 2 and the brush rod 1 forms a step 7, the covering member 4 is arranged on the step 7 and wraps the back side of the bristle holder 2, and the covering member 4 closes the stabilizing member 3.

[0032] Furthermore, the cover 4 includes a cover body 41 corresponding to the shape of the bristle holder 2, and a connecting portion 42 extending from the bottom of the cover body 41. The connecting portion 42 is generally annular, and a through hole 43 is formed in the middle of the connecting portion 42 for the brush rod 1 to pass through. The bottom surface of the connecting portion 42 corresponds to the shape of the step 7. In this embodiment, the cover body 41 is connected to the bristle holder 2, and the connecting portion 42 and the through hole 43 are connected to the brush rod 1, thereby improving the overall structural strength of the cover 4.

[0033] Preferably, the outer contour of the bottom surface of the joint 42 is flush with the outer contour of the step 7. The flush outer contour of the bottom surface of the joint and the outer contour of the step can improve the integration effect of the toothbrush head, reduce dirt residue and ensure the user's feel.

[0034] Furthermore, the above-mentioned mounting portion is arranged close to the axis of the motor shaft; the brush rod 1 and the bristle holder 2 are made of plastic, and the stabilizing member 3 is made of metal, glass or ceramic.

[0035] Furthermore, the above-mentioned brush rod 1 and bristle holder 2 are injection molded in one step, and the covering part is a secondary injection molded part formed on the periphery of the brush rod 1, the bristle holder 2 and the stabilizer 3. By directly secondary injection molding the covering part on the assembled brush rod 1, the bristle holder 2 and the stabilizer 3, it has the advantages of simple structure, easy processing and high structural strength.

[0036] The embodiment of the present utility model provides a stabilizing member, which is at least provided on the bristle holder and is made of a hard material, so that the stabilizing member can at least provide a stable supporting force for the toothbrush holder. When dealing with the high-frequency swing or vibration of the toothbrush head, by at least improving the structural strength of the bristle holder, the toothbrush head is prevented from shifting during the swing or vibration process, and the swing axis of the toothbrush head end is ensured to always remain at the center of the motor shaft. This can effectively control the swing or vibration amplitude of the toothbrush head, improve the balance performance of the toothbrush head during high-speed swing or vibration, and protect the user's dental health while ensuring the teeth cleaning effect. At the same time, by providing a covering member, the covering member is at least connected to the bristle holder, and the covering member at least wraps a portion of the stabilizing member. This can achieve effective fixation of the stabilizing member, and improve the structural stability of the electric toothbrush when working at high frequencies.

[0037] Second embodiment:

[0038] An embodiment of the present invention provides a toothbrush head. Different from the first embodiment described above, the covering member of this embodiment only wraps the upper and lower parts of the stabilizing member, exposing the middle part of the stabilizing member corresponding to the side protrusions to achieve a layered effect.

[0039] Third embodiment:

[0040] An embodiment of the present utility model provides a toothbrush head. Different from the first embodiment mentioned above, the stabilizing member of this embodiment also includes an inserting portion extending toward the brush rod from the back of the bristle holder, and the main body of the stabilizing member is tightly matched with the bristle holder by bonding or hot melting.

[0041] Specifically in this embodiment, the plug-in portion extends radially relative to the motor shaft to extend into the interior of the brush rod and to have an interference fit with the brush rod.

[0042] This embodiment provides another way to fix the stabilizing member. At the same time, the stabilizing member forms an inserting portion, which extends into the interior of the brush rod, thereby further increasing the structural strength of the stabilizing member.

[0043] Fourth embodiment:

[0044] An embodiment of the present utility model provides a toothbrush head. Different from the first embodiment mentioned above, the covering member of this embodiment completely wraps the bristle holder, and the covering member wraps the stabilizing member. The covering member forms a countersunk hole on the front of the bristle holder for arranging the bristles, so that the bristles can be directly arranged on the covering member through the countersunk hole.

[0045] Fifth embodiment:

[0046] An embodiment of the present utility model provides a toothbrush head. Different from the above-mentioned first embodiment, the number of the above-mentioned mounting parts and stabilizing parts in this embodiment is multiple, and the number of mounting parts and stabilizing parts corresponds to each other. The mounting part includes a horizontal accommodating cavity located at the upper and lower back sides of the bristle holder, and a longitudinal accommodating cavity located in the middle of the back side of the bristle holder. The shape of each stabilizing part is a wavy surface, and the contour of each stabilizing part corresponds to the contour of each accommodating cavity.

[0047] In this embodiment, each accommodating cavity is uniformly enclosed by the same covering member, or is respectively enclosed by multiple covering members.

[0048] This embodiment provides a transverse accommodating cavity and a longitudinal accommodating cavity, and arranges a stabilizing member with a wavy surface in the corresponding accommodating cavity, so that the stabilizing member can achieve a supporting effect in multiple dimensions, which can play a role in structural reinforcement, ensuring that the swing axis of the end of the toothbrush head always remains at the center position of the motor shaft, and can effectively control the swing or vibration amplitude of the toothbrush head, improve the balance performance of the toothbrush head when it swings or vibrates at high speed, and protect the user's dental health while ensuring the teeth cleaning effect.

[0049] Sixth embodiment:

[0050] An embodiment of the present utility model provides an electric toothbrush, which includes a battery and a motor powered by the battery, and also includes the toothbrush head described in any of the above embodiments, and the toothbrush head is driven by the motor.

[0051] The embodiment of the present utility model provides a stabilizing member, which is at least provided on the bristle holder and is made of a hard material, so that the stabilizing member can at least provide a stable supporting force for the toothbrush holder. When dealing with the high-frequency swing or vibration of the toothbrush head, by at least improving the structural strength of the bristle holder, the toothbrush head is prevented from shifting during the swing or vibration process, and the swing axis of the toothbrush head end is ensured to always remain at the center of the motor shaft. This can effectively control the swing or vibration amplitude of the toothbrush head, improve the balance performance of the toothbrush head during high-speed swing or vibration, and protect the user's dental health while ensuring the teeth cleaning effect. At the same time, by providing a covering member, the covering member is at least connected to the bristle holder, and the covering member at least wraps a portion of the stabilizing member. This can achieve effective fixation of the stabilizing member, and improve the structural stability of the electric toothbrush when working at high frequencies.

[0052] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For example, the shapes of the bristle holder, stabilizer, and cover are not limited to those disclosed in the accompanying drawings. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A toothbrush head, comprising a brush rod and a bristle holder at the end of the brush rod, characterized in that: It also includes a stabilizing member and a covering member, wherein the stabilizing member is at least arranged on the bristle holder, the covering member is at least connected to the bristle holder, and the covering member at least partially wraps the stabilizing member.

2. The toothbrush head according to claim 1, wherein The bristle holder is formed with a countersunk hole on the front for arranging bristles, and the bristle holder is formed with a mounting portion on the back of the countersunk hole. The stabilizing member is arranged on the back of the bristle holder through the mounting portion.

3. The toothbrush head according to claim 2, wherein: The mounting portion is a slot formed on the bristle holder, and the stabilizing member is mounted on the bristle holder by being inserted into the slot.

4. The toothbrush head according to claim 3, wherein: The mounting portion includes a side protrusion formed on the back of the bristle holder, and also includes a groove formed on the back of the bristle holder. The groove on the back of the bristle holder and the side protrusion together form the slot, and the notch of the slot is located above the bristle holder.

5. The toothbrush head according to claim 4, wherein: A step is formed at the connection between the bristle holder and the brush rod. The covering member is arranged on the step and wraps the back side of the bristle holder. The covering member also closes the stabilizing member.

6. The toothbrush head according to claim 5, wherein: The covering member includes a covering member body corresponding to the shape of the bristle holder, and a connecting portion extending from the bottom of the covering member body. The connecting portion forms a through hole in the middle for the brush rod to pass through, and the bottom surface of the connecting portion corresponds to the shape of the step.

7. The toothbrush head according to claim 6, wherein: The outer contour of the bottom surface of the joint portion is flush with the outer contour of the step.

8. The toothbrush head according to any one of claims 2 to 7, wherein: The mounting portion is arranged close to the axis of the motor shaft; the brush rod and the bristle holder are made of plastic, and the stabilizing member is made of metal, glass or ceramic.

9. The toothbrush head according to any one of claims 1 to 7, wherein: The covering part is a secondary injection molded part formed on the periphery of the brush rod, the bristle holder and the stabilizing part.

10. An electric toothbrush comprising a battery and a motor powered by the battery, characterized in that: It also comprises a toothbrush head according to any one of claims 1 to 9, wherein the toothbrush head is driven by a motor.

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