Toothbrush heads and electric toothbrushes

Abstract

The present invention belongs to the technical field of daily electrical appliances, and relates to a toothbrush head and an electric toothbrush. The toothbrush head includes a brush handle, and the brush handle is a solid structure. A first clamping structure and a first guide structure are provided on one side of the brush handle. The first clamping structure is used to clamp and cooperate with the second clamping structure of the drive assembly to clamp and fix the brush handle on the drive assembly. The first guide structure is used to cooperate with the second guide structure of the drive assembly to guide the clamping installation of the brush handle and the drive assembly. The toothbrush head of the present invention adopts this structural design, which not only makes it easy to operate and easy to implement when installed on the drive assembly, but also ensures the accuracy of its installation with the drive assembly. In addition, the brush handle is a solid structure with a stronger load-bearing capacity, which is more conducive to the transmission of power of the drive assembly. In addition, the brush handle is clamped to the drive assembly from one side, and this installation method makes it easier to observe whether the two are installed in place.

Description

Technical Field

[0001] The invention relates to the technical field of daily electrical appliances, and in particular to a toothbrush head and an electric toothbrush. Background Art

[0002] The electric toothbrush is mainly driven by a motor through a shaft to vibrate the toothbrush head, so as to break down the toothpaste into fine foam and deeply clean the gaps between teeth. The assembly of the toothbrush head and the shaft of an existing electric toothbrush is generally to insert one end of the shaft into the toothbrush head from the bottom opening of the toothbrush head, and then rotate the toothbrush head to fix it on the shaft. However, since there is no guide position in the toothbrush head, it is difficult to align the toothbrush head with the fixed shaft, which increases the difficulty of assembling the toothbrush head and the shaft. Summary of the invention

[0003] Based on this, it is necessary to provide a toothbrush head and an electric toothbrush that can be quickly installed on a drive assembly.

[0004] On the one hand, the present invention provides a toothbrush head, including a brush handle, which is a solid structure. A first clamping structure and a first guide structure are provided on one side of the brush handle. The first clamping structure is used to clamp and cooperate with the second clamping structure of a drive assembly to clamp and fix the brush handle to the drive assembly. The first guide structure is used to cooperate with the second guide structure of the drive assembly to guide the clamping installation of the brush handle and the drive assembly.

[0005] Optionally, the brush handle includes a body and a neck connected to the body, the body is a solid structure, and the first clamping structure and the first guide structure are arranged on one side of the neck.

[0006] Optionally, the first guide structure is a guide block provided on one side of the brush handle, the second guide structure is a guide groove provided on one side of the driving assembly, and the guide block is used to cooperate with the guide groove.

[0007] Optionally, a connecting block connected to the guide block is further provided on one side of the brush handle, and the first clamping structure is provided at the bottom of the connecting block.

[0008] Optionally, a first step surface is formed at a connection between the guide block and the connection block, and the first step surface is used to abut against the drive assembly to limit the axial movement of the brush handle along the drive assembly.

[0009] Optionally, the bottom of the connecting block is connected to the side wall of the connecting block away from the brush handle through an inclined surface or a curved surface transition.

[0010] Optionally, the first guide structure is a guide groove provided on one side of the brush handle, and the second guide structure is a guide block provided on one side of the driving assembly, and the guide groove is used to cooperate with the guide block.

[0011] Optionally, a receiving groove connected to the guide groove is further provided on one side of the brush handle, and the first clamping structure is provided on a side wall of the receiving groove.

[0012] Optionally, the first clamping structure is a clamping protrusion provided on one side of the brush handle, and the second clamping structure is a clamping groove provided on one side of the driving assembly.

[0013] On the other hand, the present invention also provides an electric toothbrush, including a driving assembly and the above-mentioned toothbrush head, wherein a second clamping structure and a second guide structure are provided on one side of the driving assembly, the second clamping structure is clamped and matched with the first clamping structure, and the second guide structure is matched with the first guide structure.

[0014] Implementing the embodiments of the present invention will have the following beneficial effects:

[0015] The toothbrush head of the embodiment of the present invention comprises a brush handle, and a first clamping structure and a first guide structure are provided on one side of the brush handle, and the first clamping structure is used to clamp and cooperate with the second clamping structure of the driving assembly, so that the brush handle can be clamped and fixed on the driving assembly. The first guide structure is used to cooperate with the second guide structure of the driving assembly to guide the clamping installation of the brush handle and the driving assembly, so that the toothbrush head can be accurately installed on the driving assembly. Therefore, the toothbrush head of the embodiment of the present invention adopts this structural design, which not only makes it easy to operate and easy to implement when installed on the driving assembly, but also ensures the accuracy of its installation with the driving assembly. Moreover, compared with the traditional brush handle which is a hollow structure, the brush handle of the embodiment of the present invention is a solid structure, and its bearing capacity is stronger, which is more conducive to the transmission of the power of the driving assembly, and thus makes the brushing effect of the toothbrush head better. In addition, the brush handle of the embodiment of the present invention is clamped on the driving assembly from one side, and this installation method makes it easier to observe whether the two are installed in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0017] in:

[0018] Figure 1 is a cross-sectional view of an electric toothbrush in one embodiment;

[0019] Figure 2 is a schematic structural diagram of a toothbrush head in one embodiment;

[0020] Figure 3 is a schematic structural diagram of a transmission member in one embodiment;

[0021] Figure 4 is a cross-sectional view of an electric toothbrush in another embodiment;

[0022] Figure 5 is a schematic structural diagram of a toothbrush head in another embodiment;

[0023] Figure 6 Schematic diagram of the structure of a transmission member in another embodiment.

[0024] The reference numerals in the specification are as follows:

[0025] 1. Toothbrush head; 11. Brush handle; 111. Body; 112. Neck; 113. First clamping structure; 114. First guide structure; 115. Guide block; 116. Connecting block; 117. Clamping groove; 118. First inclined surface; 1191. First arc surface; 1192. Second arc surface; 1193. First step surface; 1194. Second step surface; 12. Bristles;

[0026] 2. Driving assembly; 21. Transmission member; 211. Second clamping structure; 212. Second guide structure; 213. Guide groove; 214. Accommodating groove; 215. Clamping protrusion; 216. Third arc surface; 22. Driving member;

[0027] 3. Handle. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figures 1 to 3As shown, an embodiment of the present invention provides an electric toothbrush. The electric toothbrush includes a toothbrush head 1 and a drive assembly 2. The toothbrush head 1 includes a brush handle 11 and bristles 12 arranged on the brush handle 11. The brush handle 11 is a solid structure. A first clamping structure 113 and a first guide structure 114 are provided on one side of the brush handle 11. The first clamping structure 113 is used to clamp and cooperate with the second clamping structure 211 of the drive assembly 2 to clamp and fix the brush handle 11 to the drive assembly 2. The first guide structure 114 is used to cooperate with the second guide structure 212 of the drive assembly 2 to guide the clamping installation of the brush handle 11 and the drive assembly 2.

[0030] The toothbrush head 1 of the embodiment of the present invention comprises a brush handle 11 and bristles 12 arranged on the brush handle 11. A first clamping structure 113 and a first guide structure 114 are arranged on one side of the brush handle 11. The first clamping structure 113 is used to clamp and cooperate with the second clamping structure 211 of the driving assembly 2, so that the brush handle 11 can be clamped and fixed on the driving assembly 2. The first guide structure 114 is used to cooperate with the second guide structure 212 of the driving assembly 2 to guide the clamping installation of the brush handle 11 and the driving assembly 2, so that the toothbrush head 1 can be accurately installed on the driving assembly 2. Therefore, the toothbrush head 1 of the embodiment of the present invention adopts such a structural design, which not only makes it easy to install on the driving assembly 2, but also ensures the accuracy of its installation with the driving assembly 2. Moreover, compared with the traditional brush handle 11 which is a hollow structure, the brush handle 11 of the embodiment of the present invention is a solid structure, which has a stronger bearing capacity, so it is more conducive to the transmission of the power of the driving assembly 2, and thus makes the toothbrush head 1 have a better brushing effect. In addition, the brush handle 11 of the embodiment of the present invention is clamped on the driving assembly 2 from one side. This installation method makes it easier to observe whether the two are installed in place.

[0031] In one embodiment, if Figure 1 and Figure 3 As shown, the driving assembly 2 includes a transmission member 21 and a driving member 22. The second clamping structure 211 and the second guide structure 212 are arranged on one side of the transmission member 21. The driving member 22 is accommodated in the transmission member 21. The driving member 22 is used to drive the transmission member 21 to vibrate, so as to drive the bristles 12 to vibrate through the brush handle 11.

[0032] Furthermore, if Figure 1 and Figure 3As shown, the electric toothbrush further includes a handle 3. The second clamping structure 211 and the second guide structure 212 are arranged at the end of the transmission member 21 exposed to the handle 3. The driving member 22 is accommodated at the end of the transmission member 21 exposed to the handle 3. In this way, the driving member 22 is relatively close to the toothbrush head 1, and the path for the driving member 22 to transmit power to the toothbrush head 1 is relatively short, so that the power loss of the driving member 22 is small during transmission, so the structure of the driving member 22 can be designed to be relatively small. That is, the driving member 22 can adopt a micro motor or a micro motor.

[0033] However, in another embodiment, if Figure 4 As shown, the driving member 22 is accommodated in the handle 3. The transmission member 21 partially extends into the handle 3 and is connected to the driving member 22.

[0034] In one embodiment, if Figure 1 and Figure 2 As shown, the brush handle 11 includes a body 111 and a neck 112. The bristles 12 are arranged at one end of the body 111, and the body 111 is a solid structure. The other end of the body 111 is connected to the neck 112. The first clamping structure 113 and the first guide structure 114 are arranged on one side of the neck 112.

[0035] In one embodiment, if Figure 2 and Figure 3 As shown, the first guide structure 114 is a guide block 115 provided on one side of the brush handle 11. The second guide structure 212 is a guide groove 213 provided on one side of the drive assembly 2. The guide block 115 is used to cooperate with the guide groove 213 to guide the clamping installation of the brush handle 11 and the drive assembly 2. In this embodiment, the first guide structure 114 is a guide block 115 provided on one side of the neck 112. The second guide structure 212 is a guide groove 213 provided on one side of the transmission member 21. The guide block 115 is used to cooperate with the guide groove 213 to guide the clamping installation of the brush handle 11 and the transmission member 21.

[0036] In one embodiment, if Figure 2 and Figure 3 As shown, the adjacent two side walls of the guide block 115 are connected by a transitional arc or a bevel. It can be understood that the transitional arc or the bevel can guide the guide block 115 to slide into the guide groove 213, so that the guide block 115 can slide smoothly into the guide groove 213. In this embodiment, the adjacent two side walls of the guide block 115 are connected by a transitional first arc 1191.

[0037] In one embodiment, if Figures 1 to 3As shown, a connecting block 116 connected to the guide block 115 is further provided on one side of the brush handle 11. The first clamping structure 113 is provided at the bottom of the connecting block 116. A receiving groove 214 connected to the guide groove 213 is further provided on one side of the driving assembly 2. The receiving groove 214 is used to receive the connecting block 116. The second clamping structure 211 is provided on the bottom wall of the receiving groove 214. In this embodiment, a connecting block 116 connected to the guide block 115 is further provided on one side of the neck 112. A receiving groove 214 connected to the guide groove 213 is further provided on one side of the transmission member 21.

[0038] like Figures 1 to 3 As shown, a first step surface 1193 is formed at the connection between the guide block 115 and the connection block 116. The first step surface 1193 is used to abut against the drive assembly 2 to limit the axial movement of the brush handle 11 along the drive assembly 2. In this embodiment, a second step surface 1194 is formed at the connection between the guide groove 213 and the receiving groove 214. The first step surface 1193 is used to abut against the second step surface 1194 to limit the axial movement of the brush handle 11 along the transmission member 21.

[0039] It should be noted that the surface shape of the guide block 115 is the same as the inner wall shape of the guide groove 213. The surface shape of the connecting block 116 is the same as the inner wall shape of the receiving groove 214, so that the toothbrush head 1 and the transmission member 21 can fit tightly.

[0040] In one embodiment, if Figure 2 and Figure 3 As shown, the first clamping structure 113 is a clamping groove 117 provided on one side of the brush handle 11. The second clamping structure 211 is a clamping protrusion 215 provided on one side of the driving assembly 2. The clamping protrusion 215 is clamped into the clamping groove 117 to clamp and fix the brush handle 11 to the driving assembly 2. In this embodiment, the first clamping structure 113 is a clamping groove 117 provided at the bottom of the connecting block 116. The second clamping structure 211 is a clamping protrusion 215 provided on the bottom wall of the accommodating groove 214, and the clamping protrusion 215 is clamped into the clamping groove 117 to clamp and fix the brush handle 11 to the transmission member 21.

[0041] Of course, in another embodiment, the first clamping structure 113 is a clamping protrusion provided on one side of the brush handle 11. The second clamping structure 211 is a clamping groove provided on one side of the driving assembly 2. The clamping protrusion is clamped into the clamping groove to clamp and fix the brush handle 11 to the driving assembly 2. Specifically, the first clamping structure 113 is a clamping protrusion provided at the bottom of the connecting block 116. The second clamping structure 211 is a clamping groove provided on the bottom wall of the accommodating groove 214, and the clamping protrusion is clamped into the clamping groove to clamp and fix the brush handle 11 to the transmission member 21.

[0042] In one embodiment, if Figures 1 to 3As shown, the bottom of the connecting block 116 is connected to the side wall of the connecting block 116 away from the brush handle 11 through an inclined surface or a curved surface transition. It can be understood that the curved surface or inclined surface transition connection can guide the connecting block 116 to slide into the receiving groove 214, so that the connecting block 116 can slide smoothly into the receiving groove 214. In this embodiment, the bottom of the connecting block 116 is connected to the side wall of the connecting block 116 away from the neck 112 through a first inclined surface 118.

[0043] In one embodiment, if Figure 2 and Figure 3 As shown, the adjacent two side walls of the connection block 116 are connected by a bevel or arc transition. It can be understood that the arc or bevel transition connection can further guide the connection block 116 to slide into the receiving groove 214, so that the connection block 116 can slide into the receiving groove 214 more smoothly. In this embodiment, the adjacent two side walls of the connection block 116 are connected by a second arc surface 1192.

[0044] However, in another embodiment, if Figures 4 to 6 As shown, the first guide structure 114 is a guide groove 213 provided on one side of the brush handle 11. The second guide structure 212 is a guide block 115 provided on one side of the drive assembly 2. The guide groove 213 is used to cooperate with the guide block 115 to guide the clamping installation of the brush handle 11 and the drive assembly 2. In this embodiment, the first guide structure 114 is a guide groove 213 provided on one side of the neck 112. The second guide structure 212 is a guide block 115 provided on one side of the transmission member 21. The guide groove 213 is used to cooperate with the guide block 115 to guide the clamping installation of the brush handle 11 and the transmission member 21.

[0045] In one embodiment, if Figure 5 and Figure 6 As shown, the guide groove 213 is a rectangular groove. The cross section of the guide block 115 is rectangular. It can be understood that this structural design can make the guide block 115 fit closely with the guide groove 213, so that the cooperation between the guide block 115 and the guide groove 213 can play a good guiding role when the brush handle 11 and the transmission member 21 are clamped and installed.

[0046] Of course, in other embodiments, the cross-sectional shapes of the guide block 115 and the guide groove 213 can also be set according to actual needs. For example, the cross-sectional shapes of the guide block 115 and the guide groove 213 are both T-shaped or triangular.

[0047] In one embodiment, if Figure 5 and Figure 6As shown, a receiving groove 214 communicating with the guide groove 213 is further provided on one side of the brush handle 11. The first clamping structure 113 is provided on the side wall of the receiving groove 214. A connecting block 116 connected to the guide block 115 is further provided on one side of the driving assembly 2. The receiving groove 214 is used to accommodate the connecting block 116. The second clamping structure 211 is provided on the side wall of the connecting block 116. In this embodiment, a receiving groove 214 communicating with the guide groove 213 is further provided on one side of the neck 112. A connecting block 116 connected to the guide block 115 is further provided on one side of the transmission member 21.

[0048] In one embodiment, if Figure 5 and Figure 6 As shown, the first clamping structure 113 is a clamping protrusion 215 provided on one side of the brush handle 11. The second clamping structure 211 is a clamping groove 117 provided on one side of the driving assembly 2. The clamping protrusion 215 is clamped into the clamping groove 117 to clamp and fix the brush handle 11 to the driving assembly 2. In this embodiment, the first clamping structure 113 is a clamping protrusion 215 provided on the side wall of the accommodating groove 214. The second clamping structure 211 is a clamping groove 117 provided on the side wall of the connecting block 116. The clamping protrusion 215 is clamped into the clamping groove 117 to clamp and fix the brush handle 11 to the transmission member 21.

[0049] It should be noted that the number of the clamping protrusions 215 and the clamping grooves 117 can be set according to actual needs. In this embodiment, the number of the clamping protrusions 215 and the clamping grooves 117 are two respectively. The clamping protrusions 215 are arranged on the two opposite side walls of the accommodating groove 214. Correspondingly, the clamping grooves 117 are arranged on the two opposite side walls of the connecting block 116, so that the clamping of the brush handle 11 and the transmission member 21 can be more firmly secured.

[0050] Of course, in another embodiment, the first clamping structure 113 is a clamping groove provided on one side of the brush handle 11. The second clamping structure 211 is a clamping protrusion provided on one side of the driving assembly 2. The clamping protrusion is clamped into the clamping groove to clamp and fix the brush handle 11 to the driving assembly 2. Specifically, the first clamping structure 113 is a clamping groove provided on the side wall of the accommodating groove 214. The second clamping structure 211 is a clamping protrusion provided on the side wall of the connecting block 116. The clamping protrusion is clamped into the clamping groove to clamp and fix the brush handle 11 to the transmission member 21.

[0051] In one embodiment, if Figure 5 and Figure 6As shown, the clamping protrusion 215 is connected to the side wall of the receiving groove 214 through a cambered surface or a beveled surface transition. It can be understood that the cambered surface or the beveled surface transition connection can guide the clamping protrusion 215 to slide into the clamping groove 117, so that the clamping protrusion 215 can slide smoothly into the clamping groove 117. In this embodiment, the clamping protrusion 215 is connected to the side wall of the receiving groove 214 through a third cambered surface 216.

[0052] In one embodiment, if Figure 5 and Figure 6 As shown, the cross section of the clamping protrusion 215 is arc-shaped. The clamping groove 117 is an arc-shaped groove. It can be understood that this structural design can make the clamping protrusion 215 fit tightly with the clamping groove 117, thereby facilitating the reliability of the clamping fixation between the brush handle 11 and the transmission member 21. Moreover, this structural design is relatively simple and easy to process.

[0053] Of course, in other embodiments, the cross-sectional shapes of the clamping groove 117 and the clamping protrusion 215 can also be set according to actual needs. For example, the cross-sectional shapes of the clamping groove 117 and the clamping protrusion 215 are both triangular or rectangular.

[0054] Combination Figure 5 and Figure 6 , the installation process of the toothbrush head 1 and the transmission member 21 is described:

[0055] First, align the transmission member 21 with the toothbrush head 1 from one side, and then push the transmission member 21 to move in the direction close to the toothbrush head 1, so that the guide block 115 slides into the guide groove 213, and the connecting block 116 slides into the receiving groove 214. Finally, continue to push the transmission member 21 until the clamping protrusion 215 on the side wall of the receiving groove 214 is clamped into the clamping groove 117 on the side wall of the connecting block 116, so that the toothbrush head 1 can be fixed on the transmission member 21. In addition, through the cooperation of the guide block 115 and the guide groove 213, the clamping installation of the toothbrush head 1 and the transmission member 21 can be guided, thereby ensuring the accuracy of the installation of the toothbrush head 1 and the transmission member 21.

[0056] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. An electric toothbrush, characterized in that: The electric toothbrush comprises a toothbrush head, a driving assembly and a handle; the toothbrush head comprises a brush handle, the brush handle is a solid structure, one side of the brush handle is provided with a first clamping structure and a first guide structure, one side of the driving assembly is provided with a second clamping structure and a second guide structure, the first clamping structure is used to clamp and cooperate with the second clamping structure of the driving assembly to clamp and fix the brush handle to the driving assembly, the first guide structure is used to cooperate with the second guide structure of the driving assembly to guide the clamping installation of the brush handle and the driving assembly, and the brush handle is clamped to the driving assembly from one side; The first guide structure is a guide block provided on one side of the brush handle, the second guide structure is a guide groove provided on one side of the driving assembly, and the guide block is used to cooperate with the guide groove; or The first guide structure is a guide groove provided on one side of the brush handle, and the second guide structure is a guide block provided on one side of the driving assembly, and the guide groove is used to cooperate with the guide block; Wherein, the driving assembly includes a transmission member and a driving member, the second clamping structure and the second guide structure are arranged on one side of the transmission member, the driving member is accommodated in the transmission member, the second clamping structure and the second guide structure are arranged at one end of the transmission member exposed to the handle, and the driving member is accommodated in the one end of the transmission member exposed to the handle.

2. The electric toothbrush according to claim 1, characterized in that: The brush handle comprises a body and a neck connected to the body, the body is a solid structure, and the first clamping structure and the first guide structure are arranged on one side of the neck.

3. The electric toothbrush according to claim 1, characterized in that: A connecting block connected to the guide block is also provided on one side of the brush handle, and the first clamping structure is provided at the bottom of the connecting block.

4. The electric toothbrush according to claim 3, characterized in that: A first step surface is formed at a connection point between the guide block and the connection block, and the first step surface is used to abut against the driving assembly to limit the axial movement of the brush handle along the driving assembly.

5. The electric toothbrush according to claim 3, characterized in that: The bottom of the connecting block is connected to the side wall of the connecting block away from the brush handle through an inclined surface or an arc surface transition.

6. The electric toothbrush according to claim 1, characterized in that: A receiving groove communicated with the guide groove is further provided on one side of the brush handle, and the first clamping structure is provided on the side wall of the receiving groove.

7. The electric toothbrush according to claim 1, characterized in that: The first clamping structure is a clamping protrusion arranged on one side of the brush handle, and the second clamping structure is a clamping groove arranged on one side of the driving assembly.

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