Electric toothbrush

Abstract

The utility model relates to the technical field of electric toothbrushes, in particular to an electric toothbrush. The electric toothbrush comprises a toothbrush main body and a toothbrush head; the toothbrush main body comprises a main shell, an end cover, a sealing piece and a driving motor; bristles are arranged at one end of the toothbrush head, and an insertion cavity extending inwards is formed in the end face of the other end. The driving motor is installed in the main shell, the end cover is installed in the top end of the main shell in a threaded mode, a via hole is formed in the end cover, and an output shaft of the driving motor penetrates out of the main shell from the via hole; the toothbrush head is detachably inserted into the output shaft through the insertion cavity; the sealing piece is installed on the inner side of the end cover and seals the gap between the via hole and the output shaft. Due to the fact that the end cover is installed in the top end of the main shell in a threaded mode, when the top of the toothbrush body and the output shaft need to be cleaned, the end cover can be detached firstly, and meanwhile the sealing piece can also be detached. Therefore, the end cover, the sealing piece and the output shaft can be cleaned respectively, cleaning is easy, and the cleaning effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric toothbrush technical field, especially a kind of electric toothbrush. BACKGROUND

[0002] Electric toothbrush is a kind of toothbrush driven by electricity, can more effectively clean teeth and gum. Electric toothbrush head can carry out thousands of times even tens of thousands of times of rapid movement per minute, which far exceeds the ability of manual brushing. This can help remove dental plaque, prevent tooth decay and periodontal disease. Electric toothbrush has the advantages of easier to use, provide more thorough cleaning.

[0003] The output shaft of the driving motor of the electric toothbrush extends from the top end of the electric toothbrush body and is connected with the toothbrush head. The top end of the electric toothbrush body is close to the toothbrush head, so it is the part that is frequently in contact with the washing liquid during use and is easy to be contaminated. However, the output shaft passes through the top end, which will form an interference, and it is difficult to clean the top end of the electric toothbrush body and the output shaft, and the cleaning effect is not good. Especially, the bottom area near the output shaft on the top end of the electric toothbrush body is more difficult to clean. SUMMARY

[0004] The utility model embodiment provides a kind of electric toothbrush, to solve the problem of the cleaning of the top end of the electric toothbrush body and the output shaft in prior art is more difficult, and the cleaning effect is not good.

[0005] The utility model discloses an electric toothbrush, including toothbrush body and toothbrush head;Toothbrush body includes main casing, end cap, sealing element and driving motor;Toothbrush head one end is provided with bristle, and the other end face is provided with the plug-in cavity that extends inwards;

[0006] Driving motor is installed in main casing, end cap is screw-threaded in the top end of main casing, and the through hole is formed in the end cap, and the output shaft of driving motor passes through the through hole and goes out to the outside of main casing;Toothbrush head is detachably inserted on the output shaft through plug-in cavity;Sealing element is installed on the inner side of end cap, and the gap between sealing through hole and output shaft is sealed.

[0007] Optionally, the sealing ring part is arranged on one side of the sealing element, and the sealing ring part is arranged in the gap between the through hole and the output shaft.

[0008] Optionally, the first mounting cavity is arranged on the inner side of the end cap, and the sealing element is arranged in the first mounting cavity. The abutting ring part is arranged around the sealing ring part on the sealing element, and the abutting ring part abuts on the bottom wall of the first mounting cavity, so that the top surface of the sealing ring part is flush with the outer end surface of the end cap.

[0009] Optionally, the sleeving ring part is arranged on the other side of the sealing element, and the sleeving ring part is sleeved on the output shaft.

[0010] Optionally, the buffer spring is sleeved on the sleeving ring part.

[0011] Optionally, the toothbrush body further comprises an inner mounting bracket, which is mounted between the driving motor and the end cover.

[0012] The inner mounting bracket is axially penetrated by a continuous upper mounting cavity and a lower mounting cavity, and the lower mounting cavity is located below the upper mounting cavity; the lower mounting cavity is sleeved on the mounting boss at the end of the driving motor, the output shaft passes through the upper mounting cavity, and the sleeved ring portion is inserted into the upper mounting cavity.

[0013] Optionally, the sealing member comprises an outer wrapping ring portion surrounding the sleeved ring portion, and the outer wrapping ring portion is sleeved around the outer circumferential wall of the ring along the upper mounting cavity.

[0014] Optionally, the electric toothbrush comprises a charging base, the charging base is provided with a first rechargeable battery, the toothbrush body can be electrically connected with the charging base, and the first rechargeable battery can charge the toothbrush body.

[0015] Optionally, the charging base is provided with a charging insertion cavity, and the charging base is provided with a wireless charging transmitting coil at the bottom corresponding to the charging insertion cavity; the first rechargeable battery is electrically connected with the wireless charging transmitting coil.

[0016] The main shell is provided with a wireless charging receiving coil, the bottom of the main shell is inserted into the charging insertion cavity, and the wireless charging transmitting coil and the wireless charging receiving coil are in butt joint transmission of electric energy.

[0017] Optionally, the main shell is provided with a main control circuit board and a second rechargeable battery, and the main control circuit board is electrically connected with the driving motor, the second rechargeable battery and the wireless charging receiving coil respectively.

[0018] Compared with the prior art, the electric toothbrush provided by the embodiment of the utility model has the beneficial effects that the electric toothbrush is provided with an end cover, the end cover is screw-mounted in the top end of the main shell, the end cover is provided with a through hole, the output shaft of the driving motor passes out of the through hole to the outside of the main shell, the sealing member is mounted on the inner side of the end cover, and the gap between the sealing through hole and the output shaft is sealed. In this way, since the end cover is screw-mounted in the top end of the main shell, when the top of the toothbrush body and the output shaft need to be cleaned, the end cover can be disassembled first, and the sealing member can also be disassembled. In this way, the end cover, the sealing member and the output shaft can be cleaned respectively, the cleaning is easy, and the cleaning effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0019] The technical scheme of the utility model will be further described in detail below with reference to the drawings and embodiments, and the drawings show:

[0020] Figure 1 is the schematic diagram of the electric toothbrush of the embodiment of the utility model;

[0021] Figure 2 is the sectional view of the electric toothbrush of the embodiment of the utility model;

[0022] Figure 3 yes Figure 2 A magnified view of part A in the middle;

[0023] Figure 4 This is an exploded view of the electric toothbrush according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the end cap of an embodiment of the present utility model;

[0025] Figure 6 This is a schematic diagram of the sealing element according to an embodiment of the present invention;

[0026] Figure 7 yes Figure 2 A magnified view of part B in the middle section.

[0027] The labels for the attached figures are as follows:

[0028] 1. Toothbrush body; 11. Main shell; 12. End cap; 121. Through hole; 122. First mounting cavity; 13. Seal; 131. Sealing ring; 132. Abutting ring; 133. Fitting ring; 134. Outer ring; 14. Drive motor; 141. Output shaft; 142. Mounting boss; 15. Shock-absorbing spring; 16. Mounting bracket; 161. Upper mounting cavity; 162. Lower mounting cavity; 17. Wireless charging receiving coil; 18. Main control circuit board; 19. Second rechargeable battery; 110. Switch button; 120. Display screen; 2. Toothbrush head; 21. Brush bristles; 22. Insertion cavity; 3. Charging base; 31. First rechargeable battery; 32. Charging socket; 33. Wireless charging transmitting coil. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0030] This utility model embodiment provides an electric toothbrush, such as Figures 1 to 7 As shown, the electric toothbrush includes a toothbrush body 1 and a toothbrush head 2; the toothbrush body 1 includes a main housing 11, an end cap 12, a seal 13 and a drive motor 14; the toothbrush head 2 has bristles 21 at one end and an inwardly extending insertion cavity 22 on the other end face.

[0031] The driving motor 14 is installed in the main shell 11, the end cover 12 is threadedly installed in the top end of the main shell 11, a through hole 121 is formed in the end cover 12, and an output shaft 141 of the driving motor 14 penetrates out of the main shell 11 from the through hole 121; the toothbrush head 2 is detachably inserted in the output shaft 141 through the insertion cavity 22; and the sealing member 13 is installed on the inner side of the end cover 12 and seals the gap between the through hole 121 and the output shaft 141.

[0032] The electric toothbrush of the utility model sets up the end cover 12, and the end cover 12 is threadedly installed in the top end of the main shell 11, a through hole 121 is formed in the end cover 12, and an output shaft 141 of the driving motor 14 penetrates out of the main shell 11 from the through hole 121, the sealing member 13 is installed on the inner side of the end cover 12 and seals the gap between the through hole 121 and the output shaft 141. In this way, since the end cover 12 is threadedly installed in the top end of the main shell 11, when the toothbrush main body 1 top and the output shaft 141 need to be cleaned, the end cover 12 can be first disassembled, and the sealing member 13 can also be disassembled. In this way, the end cover 12, the sealing member 13 and the output shaft 141 can be cleaned respectively, and the cleaning is easy and the cleaning effect is good.

[0033] The sealing member 13 can seal the gap between the through hole 121 and the output shaft 141, preventing water from entering the inside of the main shell 11 from the gap of the through hole 121 during use. During specific cleaning operation, the toothbrush head 2 is first pulled off the output shaft 141, then the end cover 12 is unscrewed, and the end cover 12, the sealing member 13 and the output shaft 141 are separated for cleaning. Specifically, the end cover 12 is provided with external threads, the inner side wall of the top of the main shell 11 is provided with internal threads, and the end cover 12 is threadedly installed in the top end of the main shell 11 through the thread cooperation of the external threads and the internal threads. The sealing member 13 can be a rubber member or a silica gel member.

[0034] Further, as shown in Figure 3 and Figure 6 One side of the sealing member 13 is provided with a sealing ring part 131, which is installed in the gap between the through hole 121 and the output shaft 141. The sealing ring part 131 of the scheme seals the gap between the through hole 121 and the output shaft 141 around the output shaft 141, ensuring the sealing property of the through hole 121 and avoiding water from invading into the main shell 11 during use.

[0035] The inner side of the end cover 12 is provided with a first mounting cavity 122, and the sealing element 13 is mounted in the first mounting cavity 122. An abutting ring portion 132 is arranged around the sealing ring portion 131 of the sealing element 13, and the abutting ring portion 132 abuts against the bottom wall of the first mounting cavity 122, so that the top surface of the sealing ring portion 131 is flush with the outer side end surface of the end cover 12. The first mounting cavity 122 facilitates the installation of the sealing element 13. When the abutting ring portion 132 abuts against the bottom wall of the first mounting cavity 122 during installation, the top surface of the sealing ring portion 131 is flush with the outer side end surface of the end cover 12, neither recessed nor protruding from the through hole 121. The sealing element 13 is conveniently installed and accurately positioned.

[0036] The other side of the sealing element 13 is provided with a sleeving ring portion 133, which is sleeved on the output shaft 141. In this scheme, the sealing element 13 is sleeved on the output shaft 141 by the sleeving ring portion 133, which facilitates the respective installation of the sealing element 13 and the drive motor 14. Further, the sleeving ring portion 133 is sleeved with a shock absorbing spring 15, which can reduce vibration transmission to the main housing 11 and improve the user experience.

[0037] Further, the toothbrush body 1 further comprises an inner mounting bracket 16 mounted between the drive motor 14 and the end cover 12. The inner mounting bracket 16 is axially penetrated by a continuous upper mounting cavity 161 and a lower mounting cavity 162, and the lower mounting cavity 162 is located below the upper mounting cavity 161. The lower mounting cavity 162 is sleeved on the mounting boss 142 at the end of the drive motor 14, the output shaft 141 passes through the upper mounting cavity 161, and the sleeving ring portion 133 is inserted into the upper mounting cavity 161. The provision of the inner mounting bracket 16 can further limit the drive motor 14 and the sealing element 13. The lower mounting cavity 162 and the mounting boss 142 can form a cooperative limiting, improving the installation stability of the drive motor 14. The upper mounting cavity 161 provides installation space for the sleeving ring portion 133 and the output shaft 141, improving the compactness of the electric toothbrush structure.

[0038] Further, the sealing element 13 comprises an outer wrapping portion 134 wrapped around the sleeving ring portion 133, and the outer wrapping portion 134 is sleeved around the outer peripheral wall of the ring along which the upper mounting cavity 161 is formed. In this scheme, the outer wrapping portion 134 is sleeved around the outer peripheral wall of the ring along, further improving the installation stability of the sealing element 13.

[0039] As Figure 1 and Figure 7As shown, the electric toothbrush comprises a charging base 3, a first rechargeable battery 31 is arranged in the charging base 3, the toothbrush body 1 can be electrically connected with the charging base 3, and the first rechargeable battery 31 can charge the toothbrush body 1. The first rechargeable battery 31 in the charging base 3 can charge the toothbrush body 1, so that the toothbrush body 1 can be directly charged by the charging base 3 without using a charging line when going out. The charging base 3 can further be provided with a circuit board, and a charging interface is arranged on the circuit board, which can charge the first rechargeable battery 31 and directly charge the toothbrush body 1 through the charging interface of the base.

[0040] Specifically, the charging base 3 is provided with a charging insertion cavity 32, and a wireless charging transmitting coil 33 is arranged at the bottom of the charging seat corresponding to the charging insertion cavity 32; the first rechargeable battery 31 is electrically connected with the wireless charging transmitting coil 33. The main shell 11 is provided with a wireless charging receiving coil 17 at the bottom, the main shell 11 is inserted into the charging insertion cavity 32, and the wireless charging transmitting coil 33 and the wireless charging receiving coil 17 are in butt joint to transmit electric energy. The charging seat and the toothbrush body 1 realize wireless charging through the wireless charging transmitting coil 33 and the wireless charging receiving coil 17, and do not need to be connected with charging through a charging terminal and the like.

[0041] More specifically, the main shell 11 is provided with a main control circuit board 18 and a second rechargeable battery 19, and the main control circuit board 18 is electrically connected with the driving motor 14, the second rechargeable battery 19 and the wireless charging receiving coil 17 respectively. The second rechargeable battery 19 provides electric energy for the driving motor 14. The main shell 11 is further provided with a switch button 110 and a display screen 120 for displaying the electric quantity, which will not be described herein.

[0042] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them. For those skilled in the art, the technical solutions recorded in the above embodiments can be modified, or some technical features can be replaced by equivalents; all these modifications and replacements should belong to the protection scope of the claims of the present application.

Claims

1. An electric toothbrush characterized by comprising: The toothbrush comprises a toothbrush body and a toothbrush head; the toothbrush body comprises a main shell, an end cover, a sealing element and a driving motor; the toothbrush head is provided with bristles at one end and an insertion cavity extending inward at the other end face; The driving motor is installed in the main shell, the end cover is threadedly installed at the top end of the main shell, the end cover is provided with a through hole, and the output shaft of the driving motor passes out of the through hole to the outside of the main shell; the toothbrush head is detachably inserted on the output shaft through the insertion cavity; the sealing element is installed on the inner side of the end cover and seals the gap between the through hole and the output shaft.

2. The electric toothbrush according to claim 1, wherein The sealing element is provided with a sealing ring part on one side, which is installed in the gap between the through hole and the output shaft.

3. The electric toothbrush according to claim 2, wherein The inner side of the end cover is provided with a first installation cavity, the sealing element is installed in the first installation cavity, the sealing element is provided with an abutting ring part around the sealing ring part, and the abutting ring part abuts on the bottom wall of the first installation cavity, so that the top surface of the sealing ring part is flush with the outer end surface of the end cover.

4. The electric toothbrush according to claim 2, wherein The other side of the sealing element is provided with a sleeving ring part, which is sleeved on the output shaft.

5. The electric toothbrush according to claim 4, wherein The sleeving ring part is provided with a shock absorbing spring.

6. The electric toothbrush according to claim 4, wherein The toothbrush body further comprises an inner mounting bracket, which is installed between the driving motor and the end cover; The inner mounting bracket is axially penetrated by a communicated upper installation cavity and a lower installation cavity, the lower installation cavity is located below the upper installation cavity, the lower installation cavity is sleeved on the mounting boss of the end part of the driving motor, the output shaft passes through the upper installation cavity, and the sleeving ring part is inserted in the upper installation cavity.

7. The electric toothbrush according to claim 6, wherein The sealing element comprises an outer wrapping ring part around the sleeving ring part, and the outer wrapping ring part is sleeved on the outer circumferential wall of the ring along the upper installation cavity.

8. The electric toothbrush according to any one of claims 1 to 7, characterized in that The electric toothbrush comprises a charging base, the charging base is provided with a first rechargeable battery, the toothbrush body can be electrically connected with the charging base, and the first rechargeable battery can charge the toothbrush body.

9. The electric toothbrush according to claim 8, characterized in that The charging base is provided with a charging insertion cavity, and the charging base is provided with a wireless charging transmitting coil corresponding to the bottom of the charging insertion cavity; the first rechargeable battery is electrically connected with the wireless charging transmitting coil; The main shell is provided with a wireless charging receiving coil at the bottom, the main shell is inserted into the charging insertion cavity, and the wireless charging transmitting coil and the wireless charging receiving coil are connected to transmit electric energy.

10. The electric toothbrush according to claim 9, wherein The main shell is provided with a main control circuit board and a second rechargeable battery, and the main control circuit board is electrically connected with the driving motor, the second rechargeable battery and the wireless charging receiving coil.

Images