Toothbrush head and electric toothbrush applying same

Abstract

The utility model discloses a toothbrush head and an electric toothbrush applying the same. 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 the stabilizing piece is at least arranged on the bristle base. 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.

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 using the same. 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 swing or vibration of the toothbrush head being offset and the swing or vibration amplitude being uncontrollably increased, on the one hand, an embodiment of the present utility model provides a toothbrush head, including a brush rod and a bristle holder located at the end of the brush rod, and also including a stabilizing member, which is at least provided on the bristle holder.

[0005] Furthermore, the bristle holder is provided with a countersunk hole on the front for arranging bristles, and the bristle holder is provided with a receiving cavity on the back of the countersunk hole, and the stabilizing member is at least partially provided in the receiving cavity.

[0006] Furthermore, the toothbrush head further comprises an end cover, the accommodating cavity forms an opening on the bristle holder, the end cover is used to fully or partially close the opening, and the stabilizing member is fully or partially located between the bristle holder and the end cover.

[0007] Furthermore, the above-mentioned opening is opened on the back side of the brush holder.

[0008] Furthermore, the number of the aforementioned accommodating cavities is one or more, and each of the accommodating cavities is provided with one or more stabilizing members.

[0009] Furthermore, at least the end cover is an ultrasonically welded part.

[0010] Furthermore, the accommodating cavity 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.

[0011] Furthermore, the above-mentioned stabilizing member includes a base surface corresponding to the angle set with the back side of the brush holder, the shape of the base surface is a plane, a curved surface or a wavy surface, the accommodating cavity includes a step formed at the opening, and the end cover is covered on the step.

[0012] Furthermore, the above-mentioned end cover includes an outer side surface and an inner side surface, the inner side surface is a concave surface, and the end cover is formed with a plurality of reinforcing ribs on the concave surface; the stabilizing member also includes a plug-in portion extending radially from the base surface, and the plug-in portion is tightly fitted with the brush holder.

[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 arranged on the bristle holder and is made of hard material, so that the stabilizing member can at least provide stable supporting force for the toothbrush holder. When dealing with high-frequency swinging or vibration of the toothbrush head, the structural strength of the bristle holder is at least improved to avoid the toothbrush head from shifting during the swinging or vibration process, and to ensure that the swing axis of the end of the toothbrush head always remains at the center position of the motor shaft. The swing or vibration amplitude of the toothbrush head can be effectively controlled, and the balance performance of the toothbrush head during high-speed swinging or vibration can be improved, thereby protecting the user's dental health while ensuring the teeth cleaning effect. 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 cross-sectional view of the toothbrush head of the first embodiment of the present invention, the cross-sectional position being located at the axis of the toothbrush head relative to the motor shaft;

[0019] Figure 4 This is an exploded view of the toothbrush head of the first embodiment of the present invention;

[0020] Figure 5 It is a three-dimensional view of the end cover of the second embodiment of the present utility model. DETAILED DESCRIPTION

[0021] 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.

[0022] 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.

[0023] 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 in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] First embodiment:

[0025] 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, wherein the brush rod 1 is further provided with a socket 11 for connecting to the motor shaft, and the toothbrush head further comprises a stabilizing member 3, which is arranged on the bristle holder 2.

[0026] As a preferred solution but not a limitation, the above-mentioned brush holder 2 forms a countersunk hole 21 for arranging bristles on the front, and the brush holder 2 forms a receiving cavity 22 on the back of the countersunk hole 21, and the stabilizing member 3 is arranged in the receiving cavity 22.

[0027] The toothbrush head of this embodiment also includes an end cover 4, which includes an outer side and an inner side. The shape of the outer side of the end cover 4 corresponds to the shape of the back of the bristle holder, and the inner side of the end cover 4 is a plane. The accommodating cavity 22 forms an opening 221 on the back of the bristle holder. The end cover 4 is used to completely close the opening 221, and the stabilizing member 3 is located between the bristle holder 2 and the end cover 4.

[0028] In this embodiment, the bristle holder 2 and the end cap 4 are ultrasonically welded. The stabilizer 3 is placed in the accommodating cavity 22, the end cap 4 is placed on the stabilizer 3, and the entire assembly is placed in an ultrasonic mold. The end cap and the bristle holder are ultrasonically welded to achieve a secure seal of the stabilizer.

[0029] The accommodating cavity 22 is arranged near 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. Specifically in this embodiment, the stabilizing member 3 is made of stainless steel.

[0030] The stabilizer 3 includes a base surface that corresponds to the angle set on the back of the bristle holder 2. The base surface is in the shape of a flat surface, a curved surface, or a wavy surface. In this embodiment, the base surface is substantially parallel to the back of the bristle holder and is in the shape of a flat surface. The stabilizer can be a stainless steel sheet. The accommodating chamber includes a step 222 formed at the opening, and the end cap is mounted on the step 222. The step 222 divides the accommodating chamber into an upper accommodating chamber and a lower accommodating chamber. The base surface is located in the lower accommodating chamber, and the inner side surface of the end cap 4 is located in the upper accommodating chamber.

[0031] This embodiment uses a stainless steel sheet as the stabilizing member 3, and seals the stabilizing member 3 between the bristle holder 2 and the end cover 4 by ultrasonic welding, which has the advantages of simple structure, easy processing and high structural strength.

[0032] The embodiment of the present utility model provides a stabilizing member, which is at least arranged on the bristle holder and is made of hard material, so that the stabilizing member can at least provide stable supporting force for the toothbrush holder. When dealing with high-frequency swinging or vibration of the toothbrush head, the structural strength of the bristle holder is at least improved to avoid the toothbrush head from shifting during the swinging or vibration process, and to ensure that the swing axis of the end of the toothbrush head always remains at the center position of the motor shaft. The swing or vibration amplitude of the toothbrush head can be effectively controlled, and the balance performance of the toothbrush head during high-speed swinging or vibration can be improved, thereby protecting the user's dental health while ensuring the teeth cleaning effect.

[0033] Second embodiment:

[0034] An embodiment of the present invention provides a toothbrush head. Different from the first embodiment, the end cover 4 of this embodiment includes an outer side surface and an inner side surface 41. The inner side surface 41 is a concave surface, and the end cover 4 has a plurality of reinforcing ribs 42 formed on the concave surface.

[0035] This embodiment provides a concave surface on the inner side surface of the end cover and provides a number of reinforcing ribs on the concave surface, which can help increase the structural strength of the bristle holder, further prevent the toothbrush head from shifting during the swinging or vibrating process, and ensure that the swing axis of the end of the toothbrush head always remains at the center position of the motor shaft. It can effectively control the swing or vibration amplitude of the toothbrush head, improve the balance performance of the toothbrush head during high-speed swinging or vibration, and protect the user's dental health while ensuring the teeth cleaning effect.

[0036] Third embodiment:

[0037] The embodiment of the present utility model provides a toothbrush head. Different from the first embodiment, the stabilizing member of this embodiment further includes an inserting portion extending radially from the base surface, and the inserting portion is tightly matched with the bristle holder.

[0038] Specifically in this embodiment, the plug-in portion extends radially relative to the motor shaft, and the accommodating cavity may further be provided with a groove body corresponding to the plug-in portion for accommodating and fixing the plug-in portion.

[0039] Based on the use of planar stabilizers in the first and second embodiments, it is necessary to appropriately increase the thickness of the stabilizer while forming a good structural strength. This embodiment forms a plug-in portion by extending on the base surface of the stabilizer. On the one hand, the plug-in portion assists in fixing the stabilizer by closely cooperating with the bristle holder. On the other hand, the plug-in portion can enable the stabilizer to achieve a supporting effect in three dimensions and play a role in structural reinforcement, so that the thickness of the stabilizer can be relatively reduced without sacrificing the balance performance of the toothbrush head when it swings or vibrates at high speed.

[0040] Fourth embodiment:

[0041] This embodiment of the utility model provides a toothbrush head. Unlike the first embodiment described above, this embodiment has a strip-shaped stabilizer. The accommodating cavity connects the upper portion of the brush rod and the bristle holder. The strip-shaped stabilizer is disposed within the accommodating cavity of the upper portion of the brush rod and the bristle holder, providing structural reinforcement for both the upper portion of the brush rod and the bristle holder. The opening is located at the top of the bristle holder, enabling the stabilizer to be mounted on the top of the toothbrush head.

[0042] In this embodiment, the stabilizing member is fixed relative to the toothbrush head and the end cap by bonding or hot melting.

[0043] This embodiment further ensures that the swing axis of the toothbrush head end always remains at the center position of the motor shaft by arranging strip-shaped stabilizing members on the upper part of the brush rod and in the bristle holder, thereby controlling the swing or vibration amplitude of the toothbrush head and ensuring the balance performance of the toothbrush head when swinging or vibrating at high speed.

[0044] Fifth embodiment:

[0045] An embodiment of the present utility model provides a toothbrush head. Different from the above-mentioned first embodiment, the number of the above-mentioned accommodating cavities and stabilizers in this embodiment is multiple, and the number of accommodating cavities and stabilizers corresponds to that of the accommodating cavities. The accommodating cavities include horizontal accommodating cavities located at the upper and lower parts of the back side of the bristle holder, and a longitudinal accommodating cavity located in the middle part of the back side of the bristle holder. The base surface of each stabilizer is a wavy surface, and the contour of each stabilizer corresponds to the contour of each accommodating cavity.

[0046] In this embodiment, the opening of each accommodating cavity is connected to the back of the brush holder and is uniformly closed by a cover plate. As a specific implementation method rather than a limitation, the shape of the cover plate can be annular, and the annular cover plate partially closes the opening of each accommodating cavity.

[0047] This embodiment provides a transverse accommodating cavity and a longitudinal accommodating cavity, and arranges a stabilizing member with a wavy base 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.

[0048] Sixth embodiment:

[0049] 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.

[0050] The embodiment of the present utility model provides a stabilizing member on the toothbrush head, which is at least provided on the bristle holder and is made of hard material, so that the stabilizing member can at least provide stable supporting force for the toothbrush holder. When dealing with high-frequency swinging or vibration of the toothbrush head, the structural strength of the bristle holder is at least improved to avoid the toothbrush head from shifting during the swinging or vibration process, and to ensure that the swing axis of the end of the toothbrush head always remains at the center position of the motor shaft. The swinging or vibration amplitude of the toothbrush head can be effectively controlled, and the balance performance of the toothbrush head during high-speed swinging or vibration can be improved, thereby protecting the user's dental health while ensuring the teeth cleaning effect.

[0051] 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 end cap 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: Also included is a stabilizing member, wherein the stabilizing member is at least partially disposed on the bristle holder; The bristle holder is formed with a countersunk hole on the front side for arranging bristles, and the bristle holder is formed with a receiving cavity on the back side of the countersunk hole, and the stabilizing member is at least partially arranged in the receiving cavity; The toothbrush head further comprises an end cover, the accommodating cavity forms an opening on the bristle holder, the end cover is used to completely or partially close the opening, and the stabilizing member is completely or partially located between the bristle holder and the end cover; The stabilizing member includes a base surface corresponding to the angle set with the back side of the bristle holder, the base surface is in the shape of a plane, a curved surface or a wavy surface, the accommodating cavity includes a step formed at the opening, and the end cover is covered on the step.

2. The toothbrush head according to claim 1, characterized in that The opening is arranged on the back side of the bristle holder.

3. The toothbrush head according to claim 2, characterized in that The number of the accommodating cavities is one or more, and each of the accommodating cavities is provided with one or more stabilizing members.

4. The toothbrush head according to any one of claims 1 to 3, characterized in that: At least the end cover is an ultrasonically welded part.

5. The toothbrush head according to any one of claims 1 to 3, characterized in that: The accommodating cavity 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.

6. The toothbrush head according to claim 5, characterized in that The end cover includes an outer side surface and an inner side surface, the inner side surface is a concave surface, and the end cover is formed with a plurality of reinforcing ribs at the concave surface; the stabilizing member also includes an inserting portion extending radially from the base surface, and the inserting portion is tightly matched with the bristle holder.

7. An electric toothbrush, comprising a battery and a motor powered by the battery, characterized in that: It also comprises a toothbrush head as claimed in any one of claims 1 to 6, wherein the toothbrush head is driven by a motor.

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