Waterproof toothbrush handle and electric toothbrush

Abstract

The utility model relates to the field of electric toothbrushes, and provides a waterproof toothbrush handle and an electric toothbrush. The toothbrush handle comprises a handle body, a mounting seat and a waterproof part, a first hole channel is formed in one end of the handle body, the mounting seat is suitable for being mounted in the handle body, a second hole channel is formed in the mounting seat and suitable for mounting the driving part, and gaps are reserved between the driving shaft and the inner side walls of the second hole channel and the first hole channel; the waterproof component is hermetically arranged outside the driving shaft and is relatively positioned at one end, close to the first hole channel, of the second hole channel, so that the driving shaft and the second hole channel are hermetically arranged. The electric toothbrush comprises a toothbrush handle and a toothbrush head. The waterproof part is arranged on the outer side of the driving shaft in a sealed mode and arranged at the end, close to the first hole channel, of the second hole channel, so that the outer side wall of the driving shaft and the inner side wall of the second hole channel are arranged in a sealed mode, and liquid entering the first hole channel is blocked at the end of the second hole channel by the waterproof part and prevented from making contact with the driving piece after passing through the second hole channel; the waterproof performance of the toothbrush handle and the safety performance of the driving piece are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electric toothbrush, further relates to a waterproof toothbrush handle and electric toothbrush. BACKGROUND

[0002] In daily life, in order to clean the oral cavity quickly, electric toothbrush is often used, which comprises detachable toothbrush handle and toothbrush head, and the driving part of toothbrush handle is suitable for driving the transmission part in toothbrush head and toothbrush assembly to vibrate quickly.The driving part is installed in the toothbrush handle through the mounting seat, the second hole is arranged on the mounting seat, the first hole is arranged on the end of toothbrush handle, and the driving shaft of driving part is connected with the transmission part of toothbrush head through the second hole of mounting seat and the first hole of toothbrush handle.In order to avoid the mutual impact of driving shaft and the inner side wall of first hole and the inner side wall of second hole when vibrating, a gap is arranged between the outer side wall of driving shaft and the inner side wall of first hole and the inner side wall of second hole, which provides the possibility for liquid to enter the toothbrush handle through the first hole and the second hole, and thus causes great water inflow risk to the driving part in toothbrush handle, so that higher requirements are put forward for the waterproof performance of toothbrush handle. SUMMARY

[0003] In view of the above technical problems, the utility model aims at providing a waterproof toothbrush handle and electric toothbrush, the outer side of driving shaft is sealed with waterproof part and is arranged at one end of second hole close to first hole, so that the outer side wall of driving shaft and the inner side wall of second hole are sealed, and the liquid entering the first hole is blocked by waterproof part at the end of second hole, avoiding the contact of liquid with driving part through second hole, improving the waterproof performance of toothbrush handle and the safety performance of driving part.

[0004] In order to achieve the above purpose, the utility model provides a waterproof toothbrush handle, which comprises a handle body, a mounting seat and a waterproof part.

[0005] One end of the handle body is provided with a first hole, the mounting seat is suitable for being installed in the handle body, the mounting seat is provided with a second hole corresponding to the first hole, the mounting seat is suitable for installing a driving part, the driving shaft of the driving part is suitable for penetrating the second hole and the first hole and connecting a toothbrush head, and a gap is left between the driving shaft and the inner side wall of the second hole and the first hole, and the waterproof part is sealed on the outer side of the driving shaft and is located at one end of the second hole close to the first hole, so that the driving shaft and the second hole are sealed.

[0006] In some embodiments, the mounting seat comprises a first abutting wall, the first abutting wall is arranged at the end of the second hole close to the first hole, the waterproof part comprises a first waterproof part, and the first waterproof part is sealed on the outer side of the driving shaft and is sealed with one end of the first abutting wall close to the first hole.

[0007] In some embodiments, the first waterproof part further comprises a plurality of first waterproof protrusions on the inner side wall of the first waterproof part, the first waterproof protrusions being axially spaced apart and abutting the outer side wall of the driving shaft.

[0008] In some embodiments, the mounting seat further comprises a second abutting wall axially arranged on the first abutting wall at a side close to the first hole, the inner side wall of the second abutting wall being spaced apart from the outer side wall of the first waterproof part.

[0009] The waterproof part further comprises a second waterproof part connected to one end of the first waterproof part close to the first hole, the second waterproof part being sealingly arranged between the end of the first hole close to the second hole and the end of the second abutting wall away from the second hole.

[0010] In some embodiments, the inner side of the handle further comprises a mounting ring wall, the second abutting wall of the mounting seat being adapted to abut the mounting ring wall.

[0011] The waterproof part further comprises a third waterproof part arranged at one end of the second waterproof part away from the first waterproof part and sealingly arranged between the second abutting wall and the mounting ring wall.

[0012] In some embodiments, the third waterproof part further comprises a plurality of second waterproof protrusions on the outer side wall of the third waterproof part, the second waterproof protrusions being axially spaced apart and abutting the inner side wall of the mounting ring wall.

[0013] In some embodiments, the mounting seat further comprises a third abutting wall radially arranged on the second abutting wall at a side away from the first hole.

[0014] The first waterproof part further comprises a fourth waterproof part arranged at one end of the third waterproof part away from the second waterproof part and sealingly arranged between the end of the mounting ring wall away from the first hole and the third abutting wall.

[0015] In some embodiments, the mounting seat further comprises a fourth abutting wall axially arranged on the third abutting wall at a side away from the second abutting wall.

[0016] The first waterproof part further comprises a fifth waterproof part arranged at one end of the fourth waterproof part away from the third waterproof part and located between the inner side wall of the handle and the outer side wall of the fourth abutting wall.

[0017] In some embodiments, the mounting base further comprises a fifth abutting wall, which is connected to the fourth abutting wall radially away from the third abutting wall, and a fixing hole is arranged on the fifth abutting wall, which is suitable for fixedly connecting with the driving member.

[0018] According to another aspect of the present application, a waterproof toothbrush handle and an electric toothbrush are further provided, wherein the electric toothbrush comprises the waterproof toothbrush handle of any one of the preferred embodiments and a toothbrush head, and the toothbrush head is internally provided with a transmission member, and the driving shaft of the driving member in the toothbrush handle is suitable for connecting the transmission member in the toothbrush head.

[0019] Compared with the prior art, the waterproof toothbrush handle and the electric toothbrush provided by the present application have at least one of the following beneficial effects:

[0020] 1. The waterproof part is arranged on the outer side of the driving shaft and close to one end of the second hole, so that the waterproof part is arranged between the outer side wall of the driving shaft and the inner side wall of the second hole, and the liquid entering the first hole is blocked at the end of the second hole by the waterproof part, thereby avoiding the liquid from contacting the driving member after passing through the second hole, and improving the waterproof performance of the toothbrush handle and the safety performance of the driving member.

[0021] 2. The first waterproof protrusion is sealingly connected to the outer side wall of the driving shaft, and a plurality of first waterproof protrusions are arranged at intervals, which can improve the difficulty of liquid penetration, increase the waterproof level between the first waterproof part and the driving shaft, and avoid the liquid from accidentally passing through the gap between the first waterproof part and the driving shaft.

[0022] 3. The second waterproof part is sealingly arranged between the end of the first hole close to the second hole and the end of the second abutting wall away from the second hole, and the connection between the second hole and the first waterproof part is located at the rear side of the second waterproof part, so that the connection between the second hole and the first waterproof part is separated from the first hole, thereby avoiding the liquid from reaching the connection between the second hole and the first waterproof part.

[0023] 4. The mounting base is abuttingly mounted in the mounting ring wall, and the third waterproof part is sealingly arranged between the inner side wall of the mounting ring wall and the outer side wall of the second abutting wall, so that the second abutting wall is completely sealed by the first waterproof part, the second waterproof part and the third waterproof part, which can effectively improve the waterproof ability of the waterproof part and reduce the risk of liquid penetration.

[0024] 5. The fourth waterproof part is arranged between the end of the mounting ring wall away from the first hole and the third abutting wall, which can avoid the liquid from other directions from entering the gap between the third waterproof part and the second abutting wall, and also avoid the liquid in the first hole from reaching the inside of the handle through the gap between the mounting ring wall and the first abutting wall, thereby avoiding damage to the electronic components inside the handle and avoiding the impact between the third abutting wall and the mounting ring wall, and reducing the vibration transmission of the mounting base. BRIEF DESCRIPTION OF DRAWINGS

[0025] The above features, technical characteristics, advantages and implementation manners of the present application will be further described in a clear and understandable manner in combination with the preferred embodiments and the accompanying drawings.

[0026] Figure 1 is a sectional view of the waterproof toothbrush handle;

[0027] Figure 2 is a sectional view of the waterproof toothbrush handle;

[0028] Figure 3 is a sectional view of the waterproof component;

[0029] Figure 4 is a sectional view of the mounting seat;

[0030] Figure 5 is a structural view of the mounting seat.

[0031] BRIEF DESCRIPTION OF DRAWINGS

[0032] handle body 1, first hole channel 10, mounting ring wall 11,

[0033] mounting seat 2, second hole channel 20, first abutting wall 21, second abutting wall 22, third abutting wall 23, fourth abutting wall 24, fifth abutting wall 25, fixing hole 251,

[0034] waterproof component 3, first waterproof part 31, first waterproof protrusion 311, second waterproof part 32, third waterproof part 33, second waterproof protrusion 331, fourth waterproof part 34, fifth waterproof part 35,

[0035] drive member 4, drive shaft 41, transmission member 42. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, specific implementation manners of the present application will be described below with reference to the drawings. Obviously, the drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0037] In order to make the drawings simple, only the parts related to the present application are shown in the drawings, which do not represent the actual structure of the product. In addition, in order to make the drawings simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one".

[0038] It should be further understood that the term "and / or" as used herein in the specification and in the claims, unless otherwise specified and / or as is plain from the context, is used to mean either of the conjunctive or the disjunctive, as well as all possible combinations thereof.

[0039] It should be further understood that the terms "mounting", "connected", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0040] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. It should be pointed out that the above embodiments can be freely combined according to the needs. The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled in the art, without departing from the principle of the utility model, a number of improvements and refinements can be made, which should be regarded as the protection scope of the utility model.

[0041] Reference Figure 1 One Figure 2 The utility model provides a waterproof toothbrush handle, including handle body 1, mounting seat 2 and waterproof part 3, handle body 1 one end is equipped with first hole 10, mounting seat 2 is suitable for installing in handle body 1 inside, mounting seat 2 is equipped with the second hole 20 of corresponding setting with first hole 10, mounting seat 2 is suitable for installing driving element 4, the driving shaft 41 of driving element 4 is suitable for connecting toothbrush head after the second hole 20 and first hole 10 are penetrated, and the clearance between driving shaft 41 and the inner side wall of second hole 20 and first hole 10 is left, waterproof part 3 is sealed and is located in the outside of driving shaft 41 and is located in the one end of second hole 20 close to first hole 10, so that driving shaft 41 and second hole 20 are sealed and set up.

[0042] In the embodiment, waterproof part 3 is sealed and set up on the outside of driving shaft 41 and is located in the one end of second hole 20 close to first hole 10, so that the inner side wall between driving shaft 41 and the inner side wall of second hole 20 is sealed and set up, the liquid entering first hole 10 is blocked in the end of second hole 20 by waterproof part 3, avoids the liquid from contacting driving element 4 through second hole 20, improves the waterproof performance of toothbrush handle and the safety performance of driving element 4.

[0043] Specifically, the mounting seat 2 is arranged inside the handle body 1, the second channel 20 of the mounting seat 2 is coaxially arranged with the first channel 10 of the handle body 1, the driving member 4 is arranged on the side of the mounting seat 2 away from the first channel 10, and the driving shaft 41 of the driving member 4 is adapted to pass through the second channel 20 and the first channel 10 and then connect the transmission member 42 in the toothbrush head. The first channel 10 is externally provided with a connecting seat, the toothbrush head is internally provided with a shaft sleeve at the end close to the toothbrush holder, and the shaft sleeve is adapted to be fixedly connected with the connecting seat. The connection mode of the toothbrush head and the toothbrush handle is not limited further in the application, as long as it can be normally fixedly connected. The driving member 4 is an electric motor. The waterproof component 3 is sealingly arranged outside the driving shaft 41 and relatively located at the end of the second channel 20 close to the first channel 10, that is, the outer side wall of the driving shaft 41 is sealingly connected with the inner side wall of the waterproof component 3, and the waterproof component 3 is also sealingly connected with the end of the second channel 20 close to the first channel 10, so that the end of the second channel 20 close to the first channel 10 is sealingly arranged, liquid entering the first channel 10 cannot enter the second channel 20, and liquid is prevented from entering the inside of the mounting seat 2 and damaging the driving member 4 on the mounting seat 2.

[0044] More specifically, the mounting seat 2 comprises a first abutting wall 21, which is arranged at the end of the second channel 20 close to the first channel 10 and is arranged along the radial direction of the handle body 1. The waterproof component 3 comprises a first waterproof part 31, which is sealingly arranged outside the driving shaft 41 and sealingly connected with the end of the first abutting wall 21 close to the first channel 10, and is relatively located between the first channel 10 and the second channel 20. The first waterproof part 31 has a through hole, the through hole is adapted to pass through the driving shaft 41, and the inner side wall of the through hole is sealingly connected with the outer side wall of the driving shaft 41. It is worth noting that the sealing connection of the first waterproof part 31 and the first abutting wall 21 can be achieved by abutting the end of the first waterproof part 31 and the first abutting wall 21 against each other, or a second waterproof part 32 can be arranged on the side of the first waterproof part 31 close to the first channel 10 to achieve sealing, so that the end of the first waterproof part 31 close to the first channel 10 is sealingly connected with the end of the first channel 10, which will not be described further herein.

[0045] Further, referring to Figure 2 and Figure 3 , the inner side wall of the first waterproof part 31 is provided with a plurality of first waterproof protrusions 311, which are arranged at intervals along the axial direction of the handle body 1 and abut against the outer side wall of the driving shaft 41.

[0046] In the embodiment, the first waterproof protrusions 311 sealingly connect the outer side wall of the driving shaft 41, and the plurality of first waterproof protrusions 311 are arranged at intervals, which can improve the difficulty of liquid penetration, increase the waterproof level between the first waterproof part 31 and the driving shaft 41, and avoid accidental liquid passing through the gap between the first waterproof part 31 and the driving shaft 41.

[0047] Specifically, the first waterproof protrusions 311 are arranged between the outer wall of the drive shaft 41 and the inner wall of the first waterproof part 31, and a plurality of first waterproof protrusions 311 are arranged at intervals along the axial direction of the handle body 1. The plurality of first waterproof protrusions 311 form a plurality of waterproof barriers, increase the difficulty of liquid penetration, increase the waterproof level between the first waterproof part 31 and the drive shaft 41, and make the sealing performance of the first waterproof part 31 better, so as to avoid the liquid from accidentally passing through the gap between the first waterproof part 31 and the drive shaft 41.

[0048] Further, the mounting seat 2 further comprises a second abutting wall 22, which is arranged at the side of the first abutting wall 21 close to the first channel 10 along the axial direction of the handle body 1, and the inner wall of the second abutting wall 22 is arranged at intervals with the outer wall of the first waterproof part 31. The waterproof part 3 further comprises a second waterproof part 32, which is connected to the end of the first waterproof part 31 close to the first channel 10, and is sealingly arranged between the end of the first channel 10 close to the second channel 20 and the end of the second abutting wall 22 away from the second channel 20.

[0049] In this embodiment, the second waterproof part 32 is sealingly arranged between the end of the first channel 10 close to the second channel 20 and the end of the second abutting wall 22 away from the second channel 20, and the connection between the second channel 20 and the first waterproof part 31 is located at the rear side of the second waterproof part 32, so that the connection between the second channel 20 and the first waterproof part 31 is separated from the first channel 10, avoiding the liquid from reaching the connection between the second channel 20 and the first waterproof part 31.

[0050] Specifically, in the present application, the inner side wall of the first waterproof part 31 is in sealing abutment with the outer side wall of the drive shaft 41, but in order to reduce the vibration attenuation of the drive shaft 41, the outer side wall of the first waterproof part 31 and the inner side wall of the second abutment wall 22 are arranged to be spaced apart from each other, that is, when the outer side wall of the first waterproof part 31 and the inner side wall of the second abutment wall 22 are in abutment, the drive shaft 41 needs a larger force to compress the first waterproof part 31 to deform when the drive shaft 41 vibrates, which results in larger vibration attenuation of the drive shaft 41. Therefore, in the present embodiment, the outer side wall of the first waterproof part 31 and the inner side wall of the second abutment wall 22 are arranged to be spaced apart from each other and not in contact with each other, and when the drive shaft 41 vibrates, the gap between the first waterproof part 31 and the second abutment wall 22 can provide a reserved space for the deformation of the first waterproof part 31, and the first waterproof part 31 can relatively approach or move away from the second abutment wall 22, without the need for a larger force to compress the first waterproof part 31, only a smaller deformation of the first waterproof part 31 is needed, which can effectively improve the vibration transmission of the drive shaft 41. However, the gap between the outer side wall of the first waterproof part 31 and the inner side wall of the second abutment wall 22 also allows liquid to pass through the gap between the first waterproof part 31 and the second abutment wall 22 to the abutment position of the first waterproof part 31 and the first abutment wall 21, increasing the risk of liquid entering the second channel 20. Moreover, during the process of the first waterproof part 31 approaching or moving away from the second abutment wall 22, the end of the first waterproof part 31 is also likely to accidentally move away from the end of the second channel 20, making it difficult for the second channel 20 to effectively achieve sealing. At this time, it is difficult to form an effective sealing effect by only abutting the end of the first waterproof part 31 away from the first channel 10 with the first abutment wall 21. Therefore, in the present embodiment, the second waterproof part 32 is arranged on the side of the first waterproof part 31 close to the first channel 10, and the second waterproof part 32 is arranged in abutment and sealing between the end of the first channel 10 close to the second channel 20 and the end of the second abutment wall 22 away from the second channel 20, which can effectively prevent liquid from passing through the gap between the second abutment wall 22 and the first waterproof part 31, ensuring the vibration transmission efficiency of the drive shaft 41 while improving its waterproof performance. At the same time, the second waterproof part 32 is arranged between the inner side wall of the mounting seat 2 and the inner side wall of the handle body 1, which can also reduce the impact between the mounting seat 2 and the handle body 1, and avoid the vibration transmission between the mounting seat 2 and the handle body 1. Moreover, the second waterproof part 32 is arranged in abutment between the end of the first channel 10 close to the second channel 20 and the end of the second abutment wall 22 away from the second channel 20, which can also prevent the first waterproof part 31 of the waterproof component 3 from sliding arbitrarily on the drive shaft 41, so that the first waterproof part 31 of the waterproof component 3 is fixed at the corresponding position of the drive shaft 41.

[0051] It is worth noting that in the transformed embodiment, the first waterproof part 31 is in abutment with the first abutment wall 21 and / or the inner side wall of the second hole 20 at one end away from the first hole 10 and is sealingly connected, so that the connection between the second hole 20 and the first waterproof part 31 is sealingly connected. At this time, the first waterproof part 31 at least partially enters the second hole 20 and seals the connection between the first waterproof part 31 and the second hole 20 to increase the waterproof performance of the end of the second hole 20.

[0052] Further, with reference to Figure 2 and Figure 4 , the inner side of the handle body 1 is further provided with a mounting ring wall 11, and the second abutment wall 22 of the mounting seat 2 is adapted to be abutment mounted with the mounting ring wall 11; the waterproof part 3 further comprises a third waterproof part 33, which is provided at one end of the second waterproof part 32 away from the first waterproof part 31 and is sealingly provided between the second abutment wall 22 and the mounting ring wall 11.

[0053] In this embodiment, the mounting seat 2 is abutment mounted in the mounting ring wall 11, and the third waterproof part 33 is sealingly provided between the inner side wall of the mounting ring wall 11 and the outer side wall of the second abutment wall 22. At this time, the first waterproof part 31, the second waterproof part 32 and the third waterproof part 33 completely wrap the second abutment wall 22, so that the space between the second abutment wall 22 and the driving shaft 41 is completely sealed, that is, the end of the second hole 20 close to the first hole 10 is completely sealed, which can effectively improve the waterproof ability of the waterproof part 3 and reduce the risk of liquid penetration.

[0054] Specifically, the inner side wall of the mounting ring wall 11 is abutment mounted on the outer side wall of the second abutment wall 22, and the third waterproof part 33 is provided between the inner side wall of the mounting ring wall 11 and the outer side wall of the second abutment wall 22, that is, the third waterproof part 33 is provided on the outer side wall of the second abutment wall 22, the second waterproof part 32 is provided at the end of the second abutment wall 22, and the first waterproof part 31 is provided on the inner side of the second abutment wall 22, so that the inner side of the second abutment wall 22 is separated from the outside, on the one hand, the sealing connection between the mounting seat 2 and the mounting ring wall 11 reduces the risk of preventing liquid penetration, and on the other hand, the elastic connection between the mounting seat 2 and the mounting ring wall 11 avoids the transmission of vibration on the mounting seat 2 to the handle body 1, reduces the movement and noise between the mounting seat 2 and the mounting ring wall 11. Preferably, the outer side wall of the third waterproof part 33 is provided with a plurality of second waterproof protrusions 331, and the plurality of second waterproof protrusions 331 are spaced apart along the axial direction of the handle body 1 and abut against each other with the inner side wall of the mounting ring wall 11. The second waterproof protrusion 331 can play multiple waterproof roles, and the second waterproof protrusion 331 can also improve the elastic coefficient of the third waterproof part 33, so that it can better adapt to the vibration of the mounting seat 2. The second waterproof protrusion 331 and the first waterproof protrusion 311 have similar functions and structures, and will not be described further herein.

[0055] It is worth noting that in the deformation embodiment, the outer wall of the mounting ring wall 11 can also abut against the inner wall of the second abutting wall 22, and the present application does not make further limitation, as long as the third waterproof part 33 is arranged between the mounting ring wall 11 and the second abutting wall 22, which is within the protection scope of the present application. Meanwhile, in the embodiment, the first waterproof part 31, the second waterproof part 32 and the third waterproof part 33 are integrally arranged, and in the deformation embodiment, the third waterproof part 33 can also be arranged separately, that is, it is a separate component and is arranged at the end of the second waterproof part 32 away from the first waterproof part 31 and is sealingly arranged between the second abutting wall 22 and the mounting ring wall 11.

[0056] Further, referring to Figure 4 and Figure 5 , the mounting seat 2 further comprises a third abutting wall 23, which is arranged radially along the handle body 1 at the side of the second abutting wall 22 away from the first hole 10; the first waterproof part 31 further comprises a fourth waterproof part 34, which is arranged at the end of the third waterproof part 33 away from the second waterproof part 32 and is sealingly arranged between the end of the mounting ring wall 11 away from the first hole 10 and the third abutting wall 23.

[0057] In the embodiment, the fourth waterproof part 34 is arranged between the end of the mounting ring wall 11 away from the first hole 10 and the third abutting wall 23, which can avoid the liquid from other directions entering the gap between the third waterproof part 33 and the second abutting wall 22; meanwhile, it can also avoid the liquid in the first hole 10 reaching the inside of the handle body 1 through the gap between the mounting ring wall 11 and the first abutting wall 21, avoiding damaging the electronic components inside the handle body 1, and also avoiding the impact of the third abutting wall 23 and the mounting ring wall 11, reducing the vibration transmission of the mounting seat 2.

[0058] Specifically, the mounting seat 2 is further provided with other electronic components, which are arranged between the driving member 4 and the handle body 1, the fourth waterproof part 34 is arranged at one end of the third waterproof part 33 away from the second waterproof part 32 and is sealingly arranged between the end of the mounting ring wall 11 away from the first hole 10 and the third abutting wall 23, so as to avoid liquid from penetrating into the handle body 1 and causing safety hazards to the electronic components and improve the overall waterproof performance of the inside of the handle body 1. The mounting seat 2 further comprises a fourth abutting wall 24, which is arranged at one side of the third abutting wall 23 away from the second abutting wall 22 along the axial direction of the handle body 1; the first waterproof part 31 further comprises a fifth waterproof part 35, which is arranged at one end of the fourth waterproof part 34 away from the third waterproof part 33 and is located between the inner side wall of the handle body 1 and the outer side wall of the fourth abutting wall 24. The fifth waterproof part 35 is arranged between the inner side wall of the handle body 1 and the outer side wall of the fourth abutting wall 24, which increases the difficulty of penetration and makes the end of the mounting seat 2 close to the first hole 10 completely sealed with the handle body 1. At the same time, the fifth waterproof part 35 can also effectively avoid the impact between the mounting seat 2 and the inner side wall of the handle body 1. Preferably, the fourth abutting wall 24 is arranged in alignment with the second abutting wall 22.

[0059] Further, the mounting seat 2 further comprises a fifth abutting wall 25, which is connected to one end of the fourth abutting wall 24 away from the third abutting wall 23 along the radial direction of the handle body 1, and the fifth abutting wall 25 is provided with a fixing hole 251 adapted to be fixedly connected with the driving member 4.

[0060] In this embodiment, the fifth abutting wall 25 is provided with the fixing hole 251, and the fixing hole 251 is adapted to place a fixing member to be fixedly connected with the driving member 4. At this time, the fixing hole 251 is located at one end of the fourth abutting wall 24 away from the first hole 10, i.e. at the rear side of the second waterproof part 32, the third waterproof part 33 and the fourth waterproof part 34, and the mounting ring wall 11 and the second abutting wall 22 pass through multiple waterproof structures, which can effectively avoid liquid from penetrating at the fixing hole 251 and ensure the waterproof performance of the inside of the handle body 1. The fixing member is adapted to be connected with the driving member 4 after penetrating through the fixing hole 251, and the fixing member includes but is not limited to a latch, a screw and the like, and the present application is not limited further. As long as the mounting seat 2 and the driving member 4 can be installed, the mounting seat 2 and the driving member 4 can be installed. It is worth noting that the mounting method of the mounting seat 2 and the driving member 4 is not limited further, which is a common technology in the art and is within the scope of protection of the present application. At the same time, the mounting seat 2 further comprises a sixth abutting wall, which is arranged at one end of the fifth abutting wall 25 away from the fourth abutting wall 24 along the axial direction of the handle body 1 and is located between the outer side wall of the driving member 4 and the inner side wall of the handle body 1, so that the inner side wall of the handle body 1 and the outer side wall of the driving member 4 are arranged in spaced relation to each other to avoid impact between the driving member 4 and the handle body 1.

[0061] Further, the application provides an electric toothbrush, comprising the waterproof toothbrush handle and the toothbrush head in any of the above embodiments, the toothbrush head is internally provided with a transmission member 42, and the driving shaft 41 of the driving member 4 in the toothbrush handle is adapted to be connected to the transmission member 42 in the toothbrush head.

[0062] It should be noted that the above embodiments can be freely combined as needed. The above is only a preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A waterproof toothbrush handle, characterized in that, Includes handle, mounting base, and waterproof components; The handle has a first channel at one end, and the mounting base is adapted to be installed inside the handle. The mounting base has a second channel corresponding to the first channel. The mounting base is adapted to install a driving component. The driving shaft of the driving component is adapted to pass through the second channel and the first channel and then connect to the toothbrush head. There is a gap between the driving shaft and the inner sidewalls of the second channel and the first channel. The waterproof component is sealed on the outside of the driving shaft and is located at the end of the second channel closer to the first channel, so that the driving shaft and the second channel are sealed.

2. A waterproof toothbrush handle according to claim 1, characterized in that, The mounting base includes a first abutting wall, which is disposed at the end of the second channel near the first channel. The waterproof component includes a first waterproof part, which is sealed on the outside of the drive shaft and sealed to the end of the first abutting wall near the first channel.

3. A waterproof toothbrush handle according to claim 2, characterized in that, The inner wall of the first waterproof part is provided with a plurality of first waterproof protrusions, and the plurality of first waterproof protrusions are spaced apart along the axial direction of the handle and abut against each other on the outer wall of the drive shaft.

4. A waterproof toothbrush handle according to claim 2, characterized in that, The mounting base also includes a second abutment wall, which is arranged along the axial direction of the handle on the side of the first abutment wall near the first channel, and the inner side wall of the second abutment wall and the outer side wall of the first waterproof part are spaced apart from each other. The waterproof component further includes a second waterproof part, which is connected to the end of the first waterproof part near the first channel, and the second waterproof part is sealed between the end of the first channel near the second channel and the end of the second abutment wall away from the second channel.

5. A waterproof toothbrush handle according to claim 4, characterized in that, The inner side of the handle body is also provided with a mounting ring wall, and the second abutting wall of the mounting seat is adapted to abut against the mounting ring wall for installation; The waterproof component further includes a third waterproof part, which is disposed at the end of the second waterproof part away from the first waterproof part and is sealed between the second abutment wall and the mounting ring wall.

6. A waterproof toothbrush handle according to claim 5, characterized in that, The outer wall of the third waterproof part is provided with a plurality of second waterproof protrusions, which are spaced apart along the axial direction of the handle and abut against each other on the inner wall of the mounting ring.

7. A waterproof toothbrush handle according to claim 5, characterized in that, The mounting base further includes a third abutment wall, which is radially disposed along the handle body on the side of the second abutment wall away from the first channel; The first waterproof part further includes a fourth waterproof part, which is disposed at the end of the third waterproof part away from the second waterproof part and is sealed between the end of the mounting ring wall away from the first channel and the third abutment wall.

8. A waterproof toothbrush handle according to claim 7, characterized in that, The mounting base further includes a fourth abutment wall, which is disposed along the axial direction of the handle on the side of the third abutment wall away from the second abutment wall; The first waterproof part further includes a fifth waterproof part, which is disposed at the end of the fourth waterproof part away from the third waterproof part and is located between the inner wall of the handle and the outer wall of the fourth abutment wall.

9. A waterproof toothbrush handle according to claim 8, characterized in that, The mounting base further includes a fifth abutment wall, which is radially connected to the end of the fourth abutment wall away from the third abutment wall along the handle body. The fifth abutment wall is provided with a fixing hole, which is adapted to be fixedly connected to the driving member.

10. An electric toothbrush, characterized in that, The toothbrush includes a waterproof toothbrush handle and a toothbrush head as described in any one of claims 1-9, wherein the toothbrush head is provided with a transmission component, and the drive shaft of the drive component in the toothbrush handle is adapted to connect to the transmission component in the toothbrush head.

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