An electric toothbrush

Abstract

The application discloses an electric toothbrush, comprising: a brush head; a brush handle, the brush handle comprising a first shell and a second shell, the first shell being provided with a first connecting end, the second shell being provided with a second connecting end, the first connecting end being provided with a first clamping part, the second shell being provided with a clamping surface matched with the first clamping part on the outer side wall of the second connecting end, the first clamping part covering the clamping surface and clamping with the clamping surface, the second connecting end being provided with a second clamping part, and the second clamping part clamping with the inner side wall of the first shell. According to the application, the first clamping part is arranged on the first connecting end of the first shell, and the matched clamping surface is arranged on the side wall of the second connecting end of the second shell. When the first shell and the second shell are connected, the first clamping part is matched with the clamping surface and clamped, the contact area of the first shell and the second shell is increased, and the connection strength is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of toothbrushes, in particular to an electric toothbrush. BACKGROUND

[0002] At present, with the development of society, people's living standards are getting higher and higher, and the use of electric toothbrushes is becoming more and more common. At present, the functions of electric toothbrushes are becoming more and more complex, resulting in more internal components. In order to facilitate holding, the brush handle is generally thin and long in shape, making it difficult to install components. In order to facilitate installation, most of the brush handles on the market are designed in two sections, and the two sections of the brush handle are connected after the internal components are installed, thereby reducing the difficulty of installing internal components.

[0003] However, the connection position of most two-section brush handles at present is only for the cross section of the two brush handles, or a few buckles. The connection area of such a structure of two-section brush handles is small, and the connection strength is low.

[0004] The above content is only used to assist in understanding the technical solutions of the present application and does not represent the acknowledgement of the above content as prior art. SUMMARY

[0005] The main purpose of the present application is to provide an electric toothbrush, which aims to solve the problem of low connection strength of the two-section brush handle in the background art.

[0006] To achieve the above purpose, the present application provides an electric toothbrush, comprising:

[0007] a brush head;

[0008] a brush handle, the brush handle comprising a first shell and a second shell, the first shell having a first connecting end, the second shell having a second connecting end, the first connecting end being provided with a first clamping portion, the second shell being provided with a clamping surface on the outer side wall of the second connecting end, the first clamping portion covering the clamping surface and clamping with the clamping surface, the second connecting end being provided with a second clamping portion, the second clamping portion clamping the inner side wall of the first shell;

[0009] a drive motor and a battery, the drive motor and the battery being arranged in the brush handle, the drive shaft of the drive motor extending from the first shell and being connected with the brush head, the battery being electrically connected with the drive motor.

[0010] In the present application, the clamping surface and the outer side wall of the second shell have a height difference, and the height difference is formed from the outer side wall of the second shell to the inside of the second shell; the clamping surface extends to the end face of the second connecting end; the first clamping portion is arranged in the height difference region between the clamping surface and the outer side wall of the second shell.

[0011] In the embodiment of the present application, the clamping surface is a circular arc surface, and coaxial with the second shell, and the arc of the clamping surface is less than 360 degrees.

[0012] The first clamping part is an arc-shaped sheet structure, and coaxial with the first shell.

[0013] In the embodiment of the present application, the wall thickness of the first clamping part is the same as the height difference.

[0014] In the embodiment of the present application, a first limiting groove is arranged on the difference surface between the clamping surface and the outer side wall of the second shell, and a first limiting block adapted to the first limiting groove is arranged on the first clamping part.

[0015] In the embodiment of the present application, one of the inner side wall of the first clamping part and the clamping surface is provided with a first buckle, and the other is provided with a first clamping groove adapted to the first buckle.

[0016] In the embodiment of the present application, a glue groove is arranged on the inner side wall of the first clamping part and / or the clamping surface.

[0017] In the embodiment of the present application, a gas permeable hole communicating with the inside of the second shell is arranged on the clamping surface.

[0018] In the embodiment of the present application, the second connecting end is provided with a first annular sealing part, the first annular sealing part extends into the first shell from the first connecting end, and the outer side wall of the first annular sealing part abuts against the inner side wall of the first shell.

[0019] The outer side wall of the first annular sealing part, and / or the inner side wall of the first shell abutting against the outer side wall of the first annular sealing part is provided with a first sealing groove, and a first sealing ring is arranged in the first sealing groove.

[0020] In the embodiment of the present application, the outer side wall of the first annular sealing part and the clamping surface are located on the same circular arc surface.

[0021] In the embodiment of the present application, a first protrusion is arranged on the outer side wall of the first connecting end away from the first clamping part, and the outer side surface of the first protrusion is smoothly connected with the outer side wall of the first shell.

[0022] A second protrusion is arranged on the outer side wall of the second connecting end away from the clamping surface, and the outer side surface of the second protrusion is smoothly connected with the outer side wall of the second shell.

[0023] The first protrusion and the second protrusion are symmetrical along the joint surface of the first connecting end and the second connecting end.

[0024] In the embodiment of the present application, the second clamping part comprises a plurality of second buckles, which are arranged on the side of the first annular sealing part away from the clamping surface, and a plurality of second clamping grooves are arranged on the inner side wall of the first shell and matched with the plurality of second buckles.

[0025] In the embodiment of the present application, the brush handle further comprises a first support and a second support.

[0026] The first support is located in the first shell and the second shell, and a driving motor mounting position and a battery mounting position are arranged on the first support.

[0027] A plurality of mounting grooves are arranged on the inner side wall of the first shell, and a plurality of first guide rails are arranged on the first support and matched with the plurality of mounting grooves.

[0028] A plurality of guide grooves are arranged on the inner side wall of the second shell, and a plurality of second guide rails are arranged on the first support and matched with the plurality of guide grooves.

[0029] The second support covers the driving motor mounting position.

[0030] In the embodiment of the present application, the inner bottom of the second shell is provided with a second annular sealing part.

[0031] The brush handle further comprises a third support, the bottom of the third support is provided with a third annular sealing part matched with the second annular sealing part, and a second sealing ring is arranged between the second annular sealing part and the third annular sealing part.

[0032] The upper part of the third support is provided with an inner concave cavity, the bottom of the inner concave cavity is provided with a through hole, and the through hole communicates with the enclosed area of the third annular sealing part, so that the enclosed area of the third annular sealing part forms a sound cavity.

[0033] The bottom of the second shell is provided with a loudspeaker hole, and the loudspeaker hole communicates with the sound cavity.

[0034] In the embodiment of the present application, the bottom of the third support is further provided with an annular protrusion, the diameter of the annular protrusion is greater than the diameter of the third annular sealing part, and a first annular clamping groove is formed between the third annular sealing part and the annular protrusion.

[0035] The second annular sealing part is arranged in the first annular clamping groove.

[0036] In the embodiment of the present application, the bottom of the first support is provided with a plurality of third buckles, and the outer side wall of the third support is provided with a plurality of third clamping grooves matched with the plurality of third buckles.

[0037] In the embodiment of the present application, the brush handle further comprises a display screen and a perspective mirror, the outer side wall of the first shell is provided with a perspective mirror mounting hole communicating with the inside, the first support is provided with a display screen mounting slot at the position corresponding to the perspective mirror mounting hole, the perspective mirror is arranged in the perspective mirror mounting hole, and the display screen is arranged in the display screen mounting slot.

[0038] In the embodiment of the present application, the brush handle further comprises a function button, and the outer side wall of the second shell is provided with a function button mounting hole communicating with the inside, and the function button is arranged in the function button mounting hole.

[0039] In the embodiment of the present application, the driving shaft of the driving motor is a driving shaft with a frequency of 10HZ-35HZ and a swing angle of 5°-15°.

[0040] In the embodiment of the present application, the first clamping part is matched with the clamping surface when the first shell and the second shell are connected, so that the contact area of the first shell and the second shell is increased, and the connection strength is improved. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 It is a structural schematic diagram of the electric toothbrush of an embodiment of the present application;

[0042] Figure 2 It is a structural schematic diagram of the first shell of the electric toothbrush of an embodiment of the present application;

[0043] Figure 3 It is a structural schematic diagram of the second shell of the electric toothbrush of an embodiment of the present application;

[0044] Figure 4 It is a structural schematic diagram of the first support, the second support and the third support of the electric toothbrush of an embodiment of the present application;

[0045] Figure 5 It is a sectional view of the first shell of the electric toothbrush of an embodiment of the present application;

[0046] Figure 6 It is a structural schematic diagram of the second shell of the electric toothbrush of an embodiment of the present application;

[0047] Figure 7 It is a sectional view of the electric toothbrush of an embodiment of the present application;

[0048] Figure 8 It is a structural schematic diagram of the third support of the electric toothbrush of an embodiment of the present application;

[0049] Figure 9Structure diagram of a third support of an electric toothbrush according to another embodiment of the present application;

[0050] Figure 10 Another sectional view of an electric toothbrush according to an embodiment of the present application;

[0051] Figure 11 Enlarged view of area B in Figure 10

[0052] Figure 12 Enlarged view of area A in Figure 7

[0053] Reference signs: 100-brush head, 200-brush handle, 210-first shell, 211-first connecting end, 212-first clamping part, 213-first clamping groove, 214-second clamping groove, 215-first limiting block, 216-first protrusion, 217-mounting groove, 218-second annular clamping groove, 219-second limiting groove, 220-see-through mirror mounting hole, 230-second shell, 231-second connecting end, 232-clamping surface, 233-second clamping part, 234-first clamping buckle, 235-second clamping buckle, 236-step surface, 237-first limiting groove, 238-gum groove, 239-vent hole, 240-first annular sealing part, 241-first sealing groove, 242-second protrusion, 243-guide groove, 244-second annular sealing part, 245-function key mounting hole, 246-horn hole, 250-first support, 251-first guide rail, 252-second guide rail, 253-first arc-shaped protrusion, 254-second limiting block, 255-third clamping buckle, 256-driving motor mounting position, 257-battery mounting position, 260-second support, 261-second arc-shaped protrusion, 270-third support, 271-inner recessed cavity, 272-third annular sealing part, 273-through hole, 274-acoustic cavity, 275-second sealing ring, 276-waterproof film, 277-annular protrusion, 278-first annular clamping groove, 279-third clamping groove, 300-driving motor, 310-battery, 320-speaker, 330-see-through mirror, 350-function key. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0055] ​​It should be noted that if the application embodiments involve directionality indications (such as up, down, left, right, front, back, etc.), the directionality indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directionality indications will also change accordingly.

[0056] In addition, if the application embodiments involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but must be based on the realization of ordinary skilled in the art, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope claimed by the present application.

[0057] As shown in Figure 1 , the present exemplary embodiment proposes an electric toothbrush, comprising:

[0058] a brush head 100;

[0059] a brush handle 200, the brush handle 200 comprises a first shell 210 and a second shell 230, the first shell 210 has a first connecting end 211, the second shell 230 has a second connecting end 231, the first connecting end 211 is provided with a first clamping part 212, the second shell 230 is provided with a clamping surface 232 matched with the first clamping part 212 on the outer side wall of the second connecting end 231, the first clamping part 212 covers and clamps the clamping surface 232, and the second connecting end 231 is provided with a second clamping part 233, which is clamped in the inner side wall of the first shell 210;

[0060] a driving motor 300 and a battery 310, both of which are arranged in the brush handle 200, the driving shaft of the driving motor 300 extends from the first shell 210 and is connected with the brush head 100, and the battery is electrically connected with the driving motor.

[0061] In the application embodiments, the brush handle 200 is approximately in the shape of a cylinder and is composed of the first shell 210 and the second shell 230, the first shell 210 and the second shell 230 are hollow inside to form a containing cavity for mounting components such as the driving motor 300, the battery 310, a circuit board, etc.

[0062] As shown in Figure 2 , Figure 3As shown, the first shell 210 has a first connecting end 211 provided with an opening communicating with the inside of the first shell 210, and the second shell 230 has a second connecting end 231 provided with an opening communicating with the inside of the second shell 230, and the first shell 210 and the second shell 230 are connected through the first connecting end 211 and the second connecting end 231.

[0063] With reference to Figure 2 and Figure 3 In the embodiment, the second connecting end 231 of the second shell 230 is provided with the second clamping portion 233, and the inner side wall of the first shell 210 is provided with the second clamping surface 232 corresponding to the second clamping portion 233, so that the second clamping portion 233 is adapted to the second clamping surface 232, for example, the inner side wall of the second clamping portion 233 is shaped to be the same as the second clamping surface 232, so that the second clamping portion 233 can be just covered on the second clamping surface 232. When the second clamping portion 233 is covered and abuts on the second clamping surface 232, the second clamping portion 233 and the second clamping surface 232 are adapted and clamped.

[0064] With reference to Figure 2 and Figure 3 In the embodiment, the second clamping portion 233 can be the second clamping portion 235, wherein the second clamping portion 235 protrudes from the second connecting end 231, and the inner side wall of the first shell 210 is provided with the second clamping groove 214 corresponding to the second clamping portion 235, so that the second clamping portion 235 is inserted into the inside of the first shell 210 and clamped with the second clamping groove 214 when installed.

[0065] In the embodiment, the second clamping portion 233 can be the second clamping portion 235, wherein the second clamping portion 235 protrudes from the second connecting end 231, and the inner side wall of the first shell 210 is provided with the second clamping groove 214 corresponding to the second clamping portion 235, so that the second clamping portion 235 is inserted into the inside of the first shell 210 and clamped with the second clamping groove 214 when installed.

[0066] Generally, for two-section brush handle, only the transverse end surfaces of the two sections are connected. In the embodiment of the present application, the first connecting end 211 and the second connecting end 231 are connected, and the contact position between the two includes not only the position of the transverse end surfaces of the first connecting end 211 and the second connecting end 231, but also the position where the inner side wall of the first clamping portion 212 abuts against the clamping surface 232. The clamping surface 232 arranged on the outer side wall of the brush handle 200 can greatly increase the area of the contact between the first shell 210 and the second shell 230, thereby improving the connection strength of the first shell 210 and the second shell 230.

[0067] As shown in Figure 2 、 Figure 3 In the embodiment of the present application, the clamping surface 232 has a height difference with the outer side wall of the second shell 230, and the height difference is formed from the outer side wall of the second shell 230 to the inside of the second shell 230. The clamping surface 232 extends from the end surface of the second connecting end 231, and the first clamping portion 212 is arranged in the height difference region between the clamping surface 232 and the outer side wall of the second shell 230.

[0068] Specifically, when arranging the clamping surface 232, the height difference can be arranged from the end surface of the second connecting end 231 to the inside of the second shell 230, thereby forming the clamping surface 232 and the stepped surface 236 surrounding the clamping surface 232. The clamping surface 232 extends to the end surface of the second connecting end 231. When the first connecting end 211 and the second connecting end 231 are connected, the first clamping portion 212 can be directly inserted into the height difference region between the clamping surface 232 and the outer side wall of the second shell 230 from the end surface of the second connecting end 231 to the other end of the second shell 230, and then the inner side wall of the first clamping portion 212 abuts against the clamping surface 232. The stepped surface 236 between the clamping surface 232 and the outer side wall of the second shell 230 can also limit the first clamping portion 212, thereby avoiding the relative rotation between the first shell 210 and the second shell 230. In addition, the clamping surface 232 is in communication with the first connecting end 211, and the position of the clamping surface 232 at the end surface of the second connecting end 231 will necessarily form a socket. The socket can also play a guiding and positioning role, thereby facilitating the assembly between the first shell 210 and the second shell 230.

[0069] Continuing to refer to Figure 3As shown, the clamping surface 232 is a circular arc surface, and coaxial with the second shell 230, and the arc of the clamping surface 232 is less than 360 degrees; the first clamping part 212 is an arc-shaped sheet structure, and coaxial with the first shell 210. The first shell 210 and the second shell 230 are both substantially cylindrical, and the outer side walls of the first shell 210 and the second shell 230 are both circular arc surfaces. When the clamping surface 232 is arranged, it can be arranged as a circular arc surface coaxial with the second shell 230, and the arc of the clamping surface is less than 360 degrees, that is, the clamping surface 232 does not penetrate the circumference of the second shell 230. Correspondingly, the first clamping part 212 can also be arranged as an arc-shaped sheet structure coaxial with the first shell 210. When assembled, the arc-shaped sheet structure of the first clamping part 212 is fitted on the arc-shaped clamping surface 232, which is convenient for assembly and has high connection strength.

[0070] As shown in Figure 1 , Figure 2 , Figure 3 In the embodiment of the present application, the wall thickness of the first clamping part 212 is the same as the height difference between the clamping surface 232 and the outer side wall of the second shell 230. The thickness of the first clamping part 212 and the height difference between the clamping surface 232 and the outer side wall of the second shell 230 are the same, and the first clamping part 212 and the clamping surface 232 are coaxial. Therefore, after the first clamping part 212 is assembled on the clamping surface 232, there is no gap between the first shell 210 and the second shell 230, which avoids discomfort to the holding hand.

[0071] As shown in Figure 2 , Figure 3 In the embodiment of the present application, the first limiting groove 237 is arranged on the gap surface 236 between the clamping surface 232 and the outer side wall of the second shell 230, and the first limiting block 215 is arranged on the first clamping part 212.

[0072] As shown in Figure 3 , the outer side wall of the second shell 230 is arranged with a height difference inwardly, and the clamping surface 232 extends to the end surface of the second connecting end 231. Therefore, there is a gap surface 236 around the clamping surface 232 except the side connected with the end surface of the second connecting end 230. It should be noted that the clamping surface 232 can penetrate along one circumference of the second shell 230, or not penetrate, Figure 3 As shown in the structure diagram, the gap surface is substantially U-shaped. The first limiting groove 237 is arranged on the gap surface 236, and the corresponding first limiting block 215 is arranged on the first clamping part 212. In this way, when assembled, the first limiting block 215 on the first clamping part 212 can be inserted into the first limiting groove 237 on the gap surface 236, thereby avoiding the first clamping part 212 from turning outwardly or rising. In addition, Figure 3The discontinuity surface 236 is approximately U-shaped, and the first limiting groove 237 is disposed on the two vertical discontinuity surfaces 236. However, in other embodiments, the first limiting groove 237 can also be disposed on the horizontal discontinuity surface 236, and a corresponding first limiting block 215 can be disposed at the position corresponding to the first latching part 212. In addition, in other embodiments, the discontinuity surface 236 can also be other shapes, such as V-shaped, semi-circular, etc. The embodiments of this application do not limit the shape of the discontinuity surface 236, nor the specific position of the first limiting groove 237 on the discontinuity surface 236. In addition, in another embodiment, when the latching surface 232 penetrates around the second housing 230, the discontinuity surface is only a circular annular surface, and there is no surface similar to the first locking part 212. Figure 3 The vertical discontinuity surface 236 in the structure allows the first limiting groove 237 to be set on the annular surface.

[0073] like Figure 3 As shown in the embodiment of this application, an adhesive groove 238 is provided on the inner sidewall and / or the snap-fit ​​surface 232 of the first snap-fit ​​portion 212. Specifically, the adhesive groove 238 can be provided on the snap-fit ​​surface 232, or on the inner sidewall of the first snap-fit ​​portion 212, or both. Before assembling the first housing 210 and the second housing 230, adhesive is applied to the adhesive groove 238, and then the first housing 210 and the second housing 230 are connected. After the adhesive solidifies, the connection strength between the first housing 210 and the second housing 230 can be increased. In addition, by providing the adhesive groove 238 and filling it with adhesive, a sealing effect can also be achieved. It should be noted that... Figure 3 The specific path of the glue groove 238 is U-shaped. In other embodiments, the specific path of the glue groove 238 can also be other shapes. This application embodiment does not limit the path of the glue groove 238.

[0074] like Figure 3 As shown in this embodiment, the snap-fit ​​surface 232 is provided with a vent 239 that connects to the interior of the second housing 230. The brush handle 200 generally has a waterproof effect, meaning it has good airtightness. When the electric toothbrush is working, the heat generated by the battery and circuitry causes an increase in the internal air pressure of the brush handle 200. If the internal and external air pressures are not balanced in time, the performance will be affected. This embodiment provides a vent 239 at the snap-fit ​​surface 232. When the internal air pressure of the brush handle 200 increases, the internal gas can escape along the tiny gap between the snap-fit ​​surface 232 and the first snap-fit ​​portion 212, thereby preventing the internal air pressure of the brush handle 200 from increasing.

[0075] like Figure 2 and Figure 3As shown in the embodiment of this application, the second connecting end 231 is provided with a first annular sealing part 240. The first annular sealing part 240 extends from the first connecting end 211 into the first housing 210. The outer side wall of the first annular sealing part 240 abuts against the inner side wall of the first housing 210. The outer side wall of the first annular sealing part 240, and / or the inner side wall of the first housing 210 that abuts against the outer side wall of the first annular sealing part 240, is provided with a first sealing groove 241. A first sealing ring is provided in the first sealing groove 241.

[0076] Specifically, the first annular sealing portion 240 extends from the second connecting end 231 from the outer wall of the second housing 230. The wall thickness of the first annular sealing portion 240 can be set to be smaller than the wall thickness of the second housing 230, meaning the outer diameter of the first annular sealing portion 240 is smaller than the outer diameter of the second housing 230. This allows the first annular sealing portion 240, protruding from the second connecting end 231, to extend into the interior of the first housing 210. After extending into the first housing 210, the first annular sealing portion 240 can cooperate with the first sealing ring to form a sealing structure with the inner wall of the first housing 210. The first annular sealing portion 240 serves two purposes: firstly, it increases the contact area between the first housing 210 and the second housing 230, improving the connection strength between them; secondly, it provides a seal. It should be noted that the first sealing groove 241 for accommodating the first sealing ring can be provided on the outer side wall of the first annular sealing part 240, or on the inner side wall of the first housing 210, or the first sealing groove 241 can be provided on both the inner side wall of the first housing 210 and the outer side wall of the first annular sealing part 240.

[0077] like Figure 3 As shown in the embodiment of this application, the outer wall of the first annular sealing portion 240 and the snap-fit ​​surface 232 are located on the same arc surface. Setting the outer wall of the first annular sealing portion 240 to be coaxial with the snap-fit ​​surface 232 can simplify the manufacturing process and reduce production costs.

[0078] like Figure 1 , Figure 2As shown in the application, the first connecting end 211 is provided with a first protrusion 216 on the outer side wall away from the first clamping part 212, and the first protrusion 216 is smoothly connected with the outer side wall of the first shell 210; the second connecting end 231 is provided with a second protrusion 242 on the outer side wall away from the clamping surface 232, and the second protrusion 242 is smoothly connected with the outer side wall of the second shell 230; the first protrusion 216 and the second protrusion 242 are symmetrical along the transverse joint surface of the first connecting end 211 and the second connecting end 231. Among them, the first shell 210 and the second shell 230 are both approximately cylindrical, and after being assembled, they are still cylindrical and easy to roll on the desktop. In the application, the first protrusion 216 and the second protrusion 242 can prevent rolling. In addition, the first protrusion 216 and the second protrusion 242 are smoothly connected with the first shell 210 and the second shell 230 respectively, and the first protrusion 216 and the second protrusion 242 are mirror image structures, which can prevent slipping when holding, and the smooth connection will not cause discomfort to the hands. In addition, the first protrusion 216 and the second protrusion 242 can also play the role of prompting the holding position.

[0079] As shown in the application, Figure 2 and Figure 3 As shown in the application, the second clamping part 233 includes a plurality of second buckles 235, and the plurality of second buckles 235 are arranged on the first annular sealing part 240 away from the clamping surface 232. The inner side wall of the first shell 210 is provided with a plurality of second clamping grooves 214 matched with the plurality of second buckles 235. The second buckle 235 is arranged on the first annular sealing part 240, and after the first annular sealing part 240 extends into the first shell 210, the second buckle 235 is clamped with the corresponding second clamping groove 214. In addition, the second buckle 235 is arranged on the side of the first annular sealing part 240 away from the clamping surface 232, which cooperates with the first buckle 234 on the clamping surface 232 to form a clamping structure around the brush handle 200, thereby having high connection strength.

[0080] As shown in the application, Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown in the application, the brush handle 200 further includes a first support 250 and a second support 260. The first support 250 is located in the first shell 210 and the second shell 230, and the first support 250 is provided with a driving motor mounting position 256 and a battery mounting position 257. The inner side wall of the first shell 210 is provided with a plurality of mounting grooves 217, and the first support 250 is provided with a plurality of first guide rails 251 matched with the plurality of mounting grooves 217. The inner side wall of the second shell 230 is provided with a plurality of guide grooves 243, and the first support 250 is provided with a plurality of second guide rails 252 corresponding to the plurality of guide grooves 243. The second support 260 covers the driving motor mounting position 256.

[0081] In the embodiment of the present application, the upper end portion of the first support 250 is located in the first shell 210, and the lower end portion is located in the second shell 230, that is, the first shell 210 and the second shell 230 jointly accommodate the first support 250, the first support 250 is respectively provided with the first guide rail 251 at both sides of the upper end, and is respectively provided with the second guide rail 252 at both sides of the lower end, the inner side wall of the first shell 210 is provided with the mounting groove 217 at the position corresponding to the first guide rail 251, and the inner side wall of the second shell 230 is provided with the guide groove 243 at the position corresponding to the second guide rail 252.

[0082] In addition, the upper end of the first shell 210 is provided with an opening, the opening is used for the driving shaft of the driving motor to extend out and be connected with the brush head 100, the inner side of the top wall of the first shell 210 is further provided with the second annular clamping groove 218, the upper end of the first support 250 is provided with the first arc-shaped protrusion 253, the upper end of the second support 260 is provided with the second arc-shaped protrusion 261, the first arc-shaped protrusion 253 and the second arc-shaped protrusion 261 are combined and matched with the second annular clamping groove 218, in addition, a sealing ring can also be arranged between the combined first arc-shaped protrusion 253 and the second arc-shaped protrusion 261 and the second annular clamping groove 218, so as to ensure better sealing performance.

[0083] When assembling, the driving motor is arranged at the driving motor mounting position 256, the second support 260 is covered on the driving motor, and is connected with the first support 250 through a screw, and then the first guide rail 251 of the first support 250 is inserted into the first shell 210 along the mounting groove 217.

[0084] In another embodiment, the mounting groove 217 is further provided with the second limiting groove 219 near one end of the first connecting end 211, and the first guide rail 251 is provided with the second limiting block 254 matched therewith, the second limiting groove 219 and the second limiting block 254 are matched and arranged on the first guide rail 251 and the mounting groove 217, so as to facilitate the installation of the first support 250 at a proper position of the first shell 210.

[0085] As Figure 4 , Figure 6 , Figure 8 , Figure 9 , Figure 10 , Figure 11As shown, in the embodiment of the present application, the inner bottom of the second shell 230 is provided with a second annular sealing portion 244; the brush handle 200 further comprises a third support 270, the bottom of the third support 270 is provided with a third annular sealing portion 272 which is adapted to the second annular sealing portion 244, and a second sealing ring 275 is arranged between the second annular sealing portion 244 and the third annular sealing portion 272; the upper portion of the third support 270 is provided with an inner concave cavity 271, the bottom of the inner concave cavity 271 is provided with a through hole 273 which is communicated with the enclosed area of the third annular sealing portion 272, so that the enclosed area of the third annular sealing portion 272 forms a sound cavity 274; the bottom of the second shell 230 is provided with a loudspeaker hole 246 which faces the sound cavity 274.

[0086] Specifically, please refer to Figure 8 and Figure 9 , the upper end of the third support 270 has the inner concave cavity 271 which is used for mounting the loudspeaker 320, the bottom is provided with the third annular sealing portion 272, and the through hole 273 is located in the area enclosed by the third annular sealing portion 272 at the bottom of the third support 270, the sound emitting direction of the loudspeaker 320 is towards the through hole 273 when the loudspeaker 320 is mounted, the sound wave enters the area enclosed by the third annular sealing portion 272 through the through hole 273, and the area enclosed by the third annular sealing portion 272 can form a sound cavity 274, so that better sound effect is obtained.

[0087] Please refer to Figure 6 , Figure 12 , the inner bottom of the second shell 230 is provided with the second annular sealing portion 244, and the second shell 230 is further provided with the loudspeaker hole 246 in the area enclosed by the second annular sealing portion 244, wherein the second annular sealing portion 244 is adapted to the third annular sealing portion 272, the second sealing ring 275 is arranged between the second annular sealing portion 244 and the third annular sealing portion 272, and the second sealing ring 275 can play a role of sealing and waterproofing. In addition, when the loudspeaker 320 is mounted, a waterproof film 276 can be arranged between the loudspeaker 320 and the bottom of the inner concave cavity 271, so that even if water enters the sound cavity 274 from the loudspeaker hole 246, the second sealing ring 275 and the waterproof film 276 can limit the water in the sound cavity 274 and prevent the water from flowing further inward, thereby achieving better waterproof effect.

[0088] As Figure 8 , Figure 9 , Figure 11As shown in the drawings, in the embodiment of the present application, the bottom of the third support 270 is further provided with an annular protrusion 277, the diameter of the annular protrusion 277 is greater than the diameter of the third annular sealing portion 272, and the first annular clamping groove 278 is formed between the third annular sealing portion 272 and the annular protrusion 277; the second annular sealing portion 244 is arranged in the first annular clamping groove 278. Wherein, the annular protrusion 277 is coaxial with the third annular sealing portion 272, the diameter of the annular protrusion 277 is greater than the diameter of the third annular sealing portion 272, and the specific arrangement between the annular protrusion 277 and the third annular sealing portion 272 in the radial direction is adapted to the second annular sealing portion 244, so that the first annular clamping groove 278 formed between the annular protrusion 277 and the third annular sealing portion 272 can play a guiding and positioning role.

[0089] As shown in the drawings, Figure 4 , Figure 8 , Figure 11 As shown in the drawings, in the embodiment of the present application, the bottom of the first support 250 is provided with a plurality of third buckles 255, and the outer side wall of the third support 270 is provided with a plurality of third clamping grooves 279 adapted to each third buckle 255. Specifically, the first support 250 is provided with a plurality of third buckles 255 at one end of the bottom of the second shell 230, and the third support 270 is provided with a plurality of third clamping grooves 279 on the circumferential side wall, so that the third support 270 can be installed at the bottom of the first support 250 through the third buckles 255 and the third clamping grooves 279. Then during installation, the loudspeaker 320 can be installed in the inner recess cavity 271 of the third support 270 first, then the third support 270 can be installed at the bottom of the first support 250, and finally the third support 270 can be uniformly inserted into the bottom of the second shell 230, and the installation process is relatively simple and convenient.

[0090] As shown in the drawings, Figure 1 , Figure 2 , Figure 3 As shown in the drawings, in the embodiment of the present application, the brush handle 200 further comprises a display screen, a perspective mirror 330 and a function button 350, the outer side wall of the first shell 210 is provided with a perspective mirror mounting hole 220 communicating with the inside, the first support 250 is provided with a display screen mounting groove 217 at a position corresponding to the perspective mirror mounting hole 220, the outer side wall of the second shell 230 is provided with a function button mounting hole 245 communicating with the inside, the perspective mirror 330 is arranged in the perspective mirror mounting hole 220, and the function button 350 is arranged in the function button mounting hole 245.

[0091] In the embodiment of the present application, the driving shaft of the driving motor 300 is a driving shaft with a frequency of 10HZ-35HZ and a swing angle of 5°-15°. Specifically, the driving motor 300 with a frequency of 10HZ-35HZ and a swing angle of 5°-15° drives the brush head 100 to perform a tooth brushing action with a frequency of 10HZ-35HZ and a swing angle of 5°-15°. Such a tooth brushing mode with a lower frequency and a larger swing amplitude can bring a better tooth brushing experience to the user, especially to young children and child users. It should be noted that the swing amplitude in the embodiment of the present application refers to the swing amplitude of the brush head 100 in a quarter period.

[0092] In the embodiment of the present application, the first clamping part 212 is arranged on the first connecting end 211 of the first shell 210, and the matching clamping surface 232 is arranged on the side wall of the second connecting end 231 of the second shell 230. When the first shell 210 and the second shell 230 are connected, the first clamping part 212 is matched with and clamped on the clamping surface 232, so that the contact area of the first shell 210 and the second shell 230 is increased, and the connection strength is improved.

[0093] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present application, which are used to illustrate the technical solutions of the present application, but not to limit the same. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can make modifications or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some technical features, within the technical scope disclosed by the present application, without departing from the spirit and scope of the technical solutions of the embodiments of the present application. Such modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0094] Through the above description, the embodiments of the present application at least provide the following technical solutions, but are not limited thereto:

[0095] 1. An electric toothbrush, comprising:

[0096] a brush head;

[0097] a handle, the handle comprising a first shell and a second shell, the first shell having a first connecting end, the second shell having a second connecting end, the first connecting end being provided with a first clamping part, the second shell being provided with a clamping surface matching the first clamping part on the outer side wall of the second connecting end, the first clamping part covering and clamping on the clamping surface, the second connecting end being provided with a second clamping part, the second clamping part clamping on the inner side wall of the first shell;

[0098] a driving motor and a battery, both of which are arranged in the brush handle, a driving shaft of the driving motor extending out of the first shell and connected with the brush head, and the battery being electrically connected with the driving motor.

[0099] 2. The electric toothbrush of claim 1, wherein the clamping surface has a height difference with the outer sidewall of the second shell, and the height difference is formed from the outer sidewall of the second shell to the inside of the second shell; the clamping surface extends to the end surface of the second connecting end; and the first clamping part is arranged in the height difference region between the clamping surface and the outer sidewall of the second shell.

[0100] 3. The electric toothbrush of claim 1 or 2, wherein the clamping surface is a circular arc surface, and the clamping surface is coaxial with the second shell, and the curvature of the clamping surface is less than 360 degrees.

[0101] The first clamping part is an arc-shaped sheet structure, and the first clamping part is coaxial with the first shell.

[0102] 4. The electric toothbrush of any one of claims 1-3, wherein the wall thickness of the first clamping part is the same as the height difference.

[0103] 5. The electric toothbrush of any one of claims 1-4, wherein a first limiting groove is arranged on the stepped surface between the clamping surface and the outer sidewall of the second shell, and a first limiting block adapted to the first limiting groove is arranged on the first clamping part.

[0104] 6. The electric toothbrush of any one of claims 1-5, wherein one of the inner sidewall of the first clamping part and the clamping surface is provided with a first clasp, and the other is provided with a first clamping groove adapted to the first clasp.

[0105] 7. The electric toothbrush of any one of claims 1-6, wherein a glue groove is arranged on the inner sidewall of the first clamping part and / or the clamping surface.

[0106] 8. The electric toothbrush of any one of claims 1-7, wherein a ventilation hole communicating with the inside of the second shell is arranged on the clamping surface.

[0107] 9. The electric toothbrush of any one of claims 1-8, wherein the second connecting end is provided with a first annular sealing part, the first annular sealing part extending into the first shell from the first connecting end, and the outer sidewall of the first annular sealing part abuts against the inner sidewall of the first shell.

[0108] The outer sidewall of the first annular sealing part, and / or the inner sidewall of the first shell abutting against the outer sidewall of the first annular sealing part is provided with a first sealing groove, and a first sealing ring is arranged in the first sealing groove.

[0109] 10. The electric toothbrush of any one of claims 1-9, wherein the outer side wall of the first annular sealing portion and the clamping surface are located on the same circular arc surface.

[0110] 11. The electric toothbrush of any one of claims 1-10, wherein the second clamping portion comprises a plurality of second buckles, the second buckles are arranged on a side of the first annular sealing portion away from the clamping surface, and the inner side wall of the first housing is provided with a plurality of second clamping grooves adapted to the plurality of second buckles.

[0111] 12. The electric toothbrush of any one of claims 1-11, wherein the first connecting end is provided with a first protrusion on the outer side wall away from the first clamping portion, and an outer side surface of the first protrusion is smoothly connected to the outer side wall of the first housing.

[0112] the second connecting end is provided with a second protrusion on the outer side wall away from the clamping surface, and an outer side surface of the second protrusion is smoothly connected to the outer side wall of the second housing.

[0113] the first protrusion and the second protrusion are symmetrical along the transverse joint surface of the first connecting end and the second connecting end.

[0114] 13. The electric toothbrush of any one of claims 1-12, wherein the handle further comprises a first support and a second support.

[0115] the first support is located in the first housing and the second housing, and the first support is provided with a driving motor mounting position and a battery mounting position.

[0116] the inner side wall of the first housing is provided with a plurality of mounting grooves, and the first support is provided with a plurality of first guide rails adapted to the plurality of mounting grooves.

[0117] the inner side wall of the second housing is provided with a plurality of guide grooves, and the first support is provided with a plurality of second guide rails corresponding to the plurality of guide grooves.

[0118] the second support covers the driving motor mounting position.

[0119] 14. The electric toothbrush of any one of claims 1-13, wherein the inner bottom of the second housing is provided with a second annular sealing portion.

[0120] the handle further comprises a third support, the bottom of the third support is provided with a third annular sealing portion adapted to the second annular sealing portion, and a second sealing ring is arranged between the second annular sealing portion and the third annular sealing portion.

[0121] The upper part of the third support is provided with an inner recess, the bottom of the inner recess is provided with a through hole, the through hole is communicated with the enclosed area of the third annular sealing part, so that the enclosed area of the third annular sealing part forms a sound cavity.

[0122] The bottom of the second shell is provided with a horn hole, and the horn hole is communicated with the sound cavity.

[0123] 15. The electric toothbrush according to any one of claims 1-14, wherein the bottom of the third support is further provided with an annular protrusion, the diameter of the annular protrusion is larger than the diameter of the third annular sealing part, and a first annular clamping groove is formed between the third annular sealing part and the annular protrusion.

[0124] The second annular sealing part is arranged in the first annular clamping groove.

[0125] 16. The electric toothbrush according to any one of claims 1-15, wherein the bottom of the first support is provided with a plurality of third buckles, and the outer side wall of the third support is provided with a plurality of third clamping grooves matched with the plurality of third buckles.

[0126] 17. The electric toothbrush according to any one of claims 1-16, wherein the brush handle further comprises a display screen and a see-through mirror, the outer side wall of the first shell is provided with a see-through mirror mounting hole communicated with the inside, the first support is provided with a display screen mounting groove at a position corresponding to the see-through mirror mounting hole, the see-through mirror is arranged in the see-through mirror mounting hole, and the display screen is arranged in the display screen mounting groove.

[0127] 18. The electric toothbrush according to any one of claims 1-17, wherein the brush handle further comprises a function key, the outer side wall of the second shell is provided with a function key mounting hole communicated with the inside, and the function key is arranged in the function key mounting hole.

[0128] 19. The electric toothbrush according to any one of claims 1-18, wherein the driving shaft of the driving motor is a driving shaft with a frequency of 10-35 Hz and a swing angle of 5-15 degrees.

Claims

1. An electric toothbrush characterized by comprising: The utility model relates to a toothbrush, which comprises: a brush head; a brush handle comprising a first casing and a second casing, the first casing having a first connecting end, the second casing having a second connecting end, the first connecting end being provided with a first clamping part protruding from the first connecting end, the second casing being provided with a clamping surface on the outer side wall of the second connecting end, the clamping surface being adapted to the first clamping part, the first clamping part covering the clamping surface and being clamped with the clamping surface, the second connecting end being provided with a second clamping part, the second clamping part being clamped in the inner side wall of the first casing; a driving motor and a battery, both of which are arranged in the brush handle, the driving shaft of the driving motor extending from the first casing and being connected with the brush head, the battery being electrically connected with the driving motor; the clamping surface is a circular arc surface, the clamping surface is coaxial with the second casing, the curvature of the clamping surface is less than 360 degrees, and the clamping surface forms a socket at the end surface position of the second connecting end; the first clamping part is an arc-shaped sheet structure, and the first clamping part is coaxial with the first casing.

2. The electric toothbrush of claim 1 wherein, the clamping surface and the outer side wall of the second casing have a height difference, and the height difference is formed from the outer side wall of the second casing to the inside of the second casing; the clamping surface extends to the end surface of the second connecting end; and the first clamping part is arranged in the height difference region between the clamping surface and the outer side wall of the second casing.

3. The electric toothbrush of claim 2, wherein the wall thickness of the first clamping part is the same as the height difference.

4. The electric toothbrush of claim 2, wherein a first limiting groove is arranged on the stepped surface between the clamping surface and the outer side wall of the second casing, and a first limiting block adapted to the first limiting groove is arranged on the first clamping part.

5. The electric toothbrush as specified in claim 1 wherein, one of the inner side wall of the first clamping part and the clamping surface is provided with a first buckle, and the other is provided with a first clamping groove adapted to the first buckle.

6. The electric toothbrush as specified in claim 1 wherein, a glue groove is arranged on the inner side wall of the first clamping part and / or the clamping surface.

7. The electric toothbrush of claim 1 wherein, a ventilation hole communicating with the inside of the second casing is arranged on the clamping surface.

8. The electric toothbrush of claim 1 wherein, the second connecting end is provided with a first annular sealing part, the first annular sealing part extends into the first casing from the first connecting end, and the outer side wall of the first annular sealing part abuts against the inner side wall of the first casing; a first sealing groove is arranged on the outer side wall of the first annular sealing part and / or the inner side wall of the first casing abutting against the outer side wall of the first annular sealing part, and a first sealing ring is arranged in the first sealing groove.

9. The electric toothbrush of claim 8, wherein the head is pivotally mounted to the handle. the outer side wall of the first annular sealing part and the clamping surface are located on the same circular arc surface.

10. The electric toothbrush of claim 8, wherein the head is pivotally mounted to the handle. the second clamping part comprises a plurality of second buckles, the second buckles are arranged on the side of the first annular sealing part away from the clamping surface, and a plurality of second clamping grooves adapted to the plurality of second buckles are arranged on the inner side wall of the first casing.

11. The electrically powered toothbrush of claim 1 wherein, a first protrusion is arranged on the outer side wall of the first connecting end away from the first clamping part, and the outer side surface of the first protrusion is smoothly connected with the outer side wall of the first casing; a second protrusion is arranged on the outer side wall of the second connecting end away from the clamping surface, and the outer side surface of the second protrusion is smoothly connected with the outer side wall of the second casing. The first protrusion and the second protrusion are symmetrical along the joint surface transverse to the first connecting end and the second connecting end.

12. The electrically powered toothbrush of claim 1 wherein, The brush handle further comprises a first support and a second support. The first support is located in the first shell and the second shell, and the first support is provided with a driving motor mounting position and a battery mounting position. The inner side wall of the first shell is provided with a plurality of mounting grooves, and the first support is provided with a plurality of first guide rails matched with the plurality of mounting grooves. The inner side wall of the second shell is provided with a plurality of guide grooves, and the first support is provided with a plurality of second guide rails corresponding to the plurality of guide grooves. The second support covers the driving motor mounting position.

13. The electrically powered toothbrush of claim 12, wherein the handle is formed of a material that is transparent to the light. The inner bottom of the second shell is provided with a second annular sealing portion. The brush handle further comprises a third support, the bottom of the third support is provided with a third annular sealing portion matched with the second annular sealing portion, and a second sealing ring is arranged between the second annular sealing portion and the third annular sealing portion. The upper part of the third support is provided with an inner recess, and the bottom of the inner recess is provided with a through hole which communicates with the enclosed area of the third annular sealing portion, so that the enclosed area of the third annular sealing portion forms a sound cavity. The bottom of the second shell is provided with a horn hole which communicates with the sound cavity.

14. The electric toothbrush of claim 13, wherein the head is pivotally mounted to the handle. The bottom of the third support is further provided with an annular protrusion, the diameter of the annular protrusion is greater than the diameter of the third annular sealing portion, and a first annular clamping groove is formed between the third annular sealing portion and the annular protrusion. The second annular sealing portion is arranged in the first annular clamping groove.

15. The electrically powered toothbrush of claim 13, wherein the handle is formed of a material that is transparent to the light. The bottom of the first support is provided with a plurality of third buckles, and the outer side wall of the third support is provided with a plurality of third clamping grooves matched with the plurality of third buckles.

16. The electric toothbrush as described in claim 13, characterized in that, The brush handle further comprises a display screen and a see-through mirror, the outer side wall of the first shell is provided with a see-through mirror mounting hole communicating with the inside, the first support is provided with a display screen mounting slot at a position corresponding to the see-through mirror mounting hole, the see-through mirror is arranged in the see-through mirror mounting hole, and the display screen is arranged in the display screen mounting slot.

17. The electrically powered toothbrush of claim 1 wherein, The brush handle further comprises a function button, and the outer side wall of the second shell is provided with a function button mounting hole communicating with the inside, and the function button is arranged in the function button mounting hole.

18. The electrically powered toothbrush of any one of claims 1-17, wherein, The driving shaft of the driving motor is a driving shaft with a frequency of 10HZ-35HZ and a swing angle of 5°-15°.

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