An electric toothbrush

Abstract

The present invention discloses an electric toothbrush, which comprises: an electric toothbrush body, including a driving assembly, a battery assembly electrically connected to the driving assembly, and a brush head assembly transmission-connected to the driving assembly; a gum protection structure, which is arranged on the toothbrush body and is used to detect and adjust the vibration intensity of the driving assembly and the brush head assembly; an air pressure balance connection structure, which is arranged on the electric toothbrush body and is used to connect the driving assembly and the battery assembly; a rotary switch structure, which is arranged in the electric toothbrush body and electrically connects the driving assembly and the battery assembly. The rotary switch structure is used to realize the rotational adjustment of the electric toothbrush, thereby improving the waterproof performance of the electric toothbrush; the gum protection structure is used to realize the detection and adjustment of the vibration intensity of the driving assembly and the brush head assembly, thereby protecting the gum structure; and the air pressure balance connection structure used to connect the driving assembly and the battery assembly is provided, thereby facilitating the replacement and maintenance of the battery assembly of the electric toothbrush.

Description

Technical Field

[0001] The invention relates to the technical field of electric toothbrushes, in particular to an electric toothbrush. Background Art

[0002] Electric toothbrushes are widely welcomed in the market due to their good cleaning effect. When the electric toothbrush is working, the driving component (motor) drives the brush head to generate high-frequency vibrations, breaking down the toothpaste into fine foams to deeply clean the gaps between teeth. At the same time, the vibration of the bristles can promote blood circulation in the oral cavity and have a massage effect on the gum tissue. Existing electric toothbrushes are usually equipped with batteries to provide power for the motor. However, the battery and motor in existing electric toothbrushes are usually set as an integrated structure, which results in the battery of the electric toothbrush being unable to be replaced after it is worn out, which seriously affects the service life of the electric toothbrush.

[0003] At the same time, the gum tissue is relatively fragile. When the vibration intensity of the bristles of the electric toothbrush exceeds a certain threshold, it will cause damage to the gum tissue. At the same time, in order to protect the gum tissue and enrich the operating mode of the electric toothbrush, the existing electric toothbrush organizations usually set a push switch to adjust the electric toothbrush to enter different modes of operation, thereby protecting the gum tissue. However, the push switch must be designed with a window on the shell of the electric toothbrush, which seriously affects the appearance integrity of the electric toothbrush. At the same time, the window design of the shell will also bring sealing problems, and it is easy for water and other liquids to enter the interior of the electric toothbrush, thereby damaging the internal structure or circuit of the toothbrush and causing damage to the electric toothbrush.

[0004] Therefore, the prior art has defects and needs to be improved and developed. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide an electric toothbrush, aiming to solve the problems of poor waterproof performance, easy damage to gum tissue and non-replaceable batteries in the prior art electric toothbrushes.

[0006] A technical solution adopted by the present invention to solve the technical problem is as follows: an electric toothbrush, comprising:

[0007] An electric toothbrush body, the electric toothbrush body comprising a drive assembly, a battery assembly electrically connected to the drive assembly, and a brush head assembly transmission-connected to the drive assembly;

[0008] A gum protection structure, which is disposed on the electric toothbrush body and is used to detect and adjust the vibration intensity of the drive assembly and the brush head assembly;

[0009] An air pressure balancing connection structure, which is disposed on the electric toothbrush body and is used to connect the drive assembly and the battery assembly;

[0010] A rotary switch structure is disposed in the electric toothbrush body and electrically connected to the drive assembly and the battery assembly.

[0011] Furthermore, the electric toothbrush body further comprises: a driving and fixing assembly; a first end of the driving assembly along the axial direction is suspended and connected to the driving and fixing assembly, and one end of the brush head assembly along the axial direction is connected to the first end of the driving assembly; the brush head assembly is detachably connected to the driving assembly;

[0012] The gum protection structure includes a trigger component arranged at the lower end relative to the second end of the drive component along the axial direction, and the trigger component adjusts the operating power of the drive component when triggered; when the drive component is running, the drive component can swing around the drive fixing component, and when the swing amplitude of the drive component exceeds a threshold value, the drive component triggers the trigger component.

[0013] Further, the trigger component includes: a PCB board electrically connected to the driving component; a first electrode spring arranged on the PCB board; a second electrode spring arranged on the PCB board and spaced apart from the first electrode spring; wherein the first electrode spring is arranged between the second electrode spring and the second end of the driving component;

[0014] The driving assembly comprises: a motor having one end detachably connected to the brush head assembly; a swing block disposed on an end of the motor away from the brush head assembly and spaced apart from the first electrode spring;

[0015] The driving fixing assembly includes: a motor fixing seat for accommodating and fixing the motor; an upper cover sleeved on the outer circumference of the motor fixing seat and rotatably connected to the motor fixing seat; and a motor base arranged between the PCB board and the motor and used for limiting the swinging space of the swing block.

[0016] Furthermore, a first hanging member and a second hanging member are provided on one end of the motor fixing seat close to the brush head assembly; a first fixing hole and a second fixing hole are provided on the upper cover corresponding to the positions of the first hanging member and the second hanging member, the first hanging member is rotatably connected to the first fixing hole, and the second hanging member is rotatably connected to the second fixing hole.

[0017] Furthermore, the electric toothbrush body further comprises: a battery assembly electrically connected to the driving assembly;

[0018] The air pressure balance connection structure includes: a battery fixing component detachably connected to the drive fixing component, and an air pressure balance connection mechanism arranged on the electric toothbrush body for connecting the drive component and the battery component; the drive fixing component is provided with a connector bracket, and the drive component is arranged on the drive fixing component; the battery fixing component is provided with a bottom shell and a battery front cover, and the battery component is arranged on the bottom shell and the battery front cover; wherein, the battery component is detachably connected to the drive component, the connector bracket is detachably connected to the battery front cover, one end of the air pressure balance connection mechanism is detachably connected to the bottom shell, the battery component and the battery front cover, and the other end of the air pressure balance connection mechanism is detachably connected to the connector bracket.

[0019] Furthermore, the air pressure balancing connection mechanism includes:

[0020] A button which is slidably connected to the battery fixing assembly, the battery assembly and the connector bracket and is provided with a first air passage and a second air passage which are vertically connected;

[0021] A button reset member sleeved on the button between the bottom shell and the battery assembly and used for pushing the button to automatically lock the drive assembly;

[0022] An air cushion contained in the second air channel and used to seal the second air channel, and air outlets communicating with the second air channel are arranged at both ends of the air cushion;

[0023] Wherein, one end of the button is clamped with the connector bracket.

[0024] Furthermore, the rotary switch structure includes: a mainboard component; a contact electrode component disposed on the mainboard component; a rotary reset component disposed on the mainboard component for controlling the closing or opening of the contact electrode component;

[0025] The mainboard assembly comprises: a first PCB board fixedly connected to the driving fixed assembly and electrically connected to the driving assembly; a second PCB board fixedly connected to the battery assembly and electrically connected to the battery assembly and spaced apart from the first PCB board;

[0026] The contact electrode assembly includes: a first contact electrode arranged on the end surface of the first PCB board facing the second PCB board and electrically connected to the first PCB board; and a second contact electrode arranged on the end surface of the second PCB board facing the first PCB board and electrically connected to the second PCB board.

[0027] Furthermore, the axial spacing between the first PCB board and the second PCB board along the electric toothbrush body is smaller than the sum of the heights of the first contact electrode and the second contact electrode along the axial direction of the electric toothbrush body;

[0028] The first contact electrode and / or the second contact electrode are configured as elastic spring electrodes; or, the first contact electrode is configured as a spring electrode and the second contact electrode is configured as a copper pillar electrode; or, the first contact electrode is configured as a copper pillar electrode and the second contact electrode is configured as a spring electrode.

[0029] Furthermore, the electric toothbrush body further comprises a battery assembly, and the battery assembly is electrically connected to the driving assembly;

[0030] The electric toothbrush further comprises a push-button switch structure and / or a sliding touch switch structure which is arranged on the electric toothbrush body and is electrically connected to the battery assembly and the drive assembly.

[0031] Furthermore, the electric toothbrush body further comprises a detachably connected battery assembly and a battery fixing assembly, and the battery assembly is electrically connected to the driving assembly;

[0032] The electric toothbrush also includes a power display structure arranged on the battery fixing assembly and electrically connected to the battery assembly. The power display structure includes an electrically connected touch switch and a power indicator light. The power indicator light is arranged on the side end surface of the battery fixing assembly, and the touch switch is arranged on the end surface of the battery fixing assembly away from the driving assembly.

[0033] Compared with the prior art, the present invention provides an electric toothbrush, which includes: an electric toothbrush body, the electric toothbrush body including a drive assembly, a battery assembly electrically connected to the drive assembly, and a brush head assembly transmission-connected to the drive assembly; a gum protection structure, the gum protection structure is arranged on the electric toothbrush body, and is used to detect and adjust the vibration intensity of the drive assembly and the brush head assembly; an air pressure balance connection structure, the air pressure balance connection structure is arranged on the electric toothbrush body, and is used to connect the drive assembly and the battery assembly; a rotary switch structure, the rotary switch structure is arranged in the electric toothbrush body, and is electrically connected to the drive assembly and the battery assembly. It can be understood that by providing a rotary switch structure, and providing the rotary switch structure in the electric toothbrush body, and electrically connecting the drive assembly and the battery assembly through the rotary switch structure, the operation mode of the electric toothbrush can be adjusted by rotation. At the same time, it is also avoided to open a window on the electric toothbrush body, which not only protects the integrity of the appearance of the electric toothbrush, but also improves the waterproof performance of the electric toothbrush; through the gum protection structure, the vibration intensity of the drive assembly and the brush head assembly can be detected and adjusted, effectively protecting the gum structure; by providing an air pressure balance connection structure for connecting the drive assembly and the battery assembly, the replacement and maintenance of the battery assembly of the electric toothbrush is facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of the electric toothbrush provided in the present invention;

[0035] Figure 2 is a three-dimensional exploded schematic diagram of the electric toothbrush provided in the present invention;

[0036] Figure 3 It is a three-dimensional structural schematic diagram of the gum protection structure of the electric toothbrush provided in the present invention;

[0037] Figure 4 It is a three-dimensional exploded schematic diagram of the gum protection structure of the electric toothbrush provided in the present invention;

[0038] Figure 5 The present invention Figure 4 A magnified schematic diagram of part A in FIG.

[0039] Figure 6 is a front view schematic diagram of the gum protection structure provided in the present invention;

[0040] Figure 7 The present invention Figure 6 A schematic cross-sectional view along the Ⅰ-Ⅰ direction;

[0041] Figure 8 The present invention Figure 7 A magnified schematic diagram of part B in FIG.

[0042] Fig. 9 is another three-dimensional exploded schematic diagram of the gum protection structure of the electric toothbrush provided in the present invention;

[0043] Fig.10 It is a three-dimensional exploded schematic diagram of a motor base plate of a driving and fixing assembly of a gum protection structure of an electric toothbrush provided in the present invention;

[0044] Fig.11 is a three-dimensional exploded schematic diagram of the electric toothbrush provided in the present invention;

[0045] Fig.12 It is a three-dimensional exploded schematic diagram of the air pressure balance connection structure of the electric toothbrush provided in the present invention;

[0046] Fig.13 It is a three-dimensional exploded schematic diagram of the air pressure balance connection structure of the electric toothbrush provided in the present invention from another perspective;

[0047] Fig.14 is a side view schematic diagram of the electric toothbrush provided in the present invention;

[0048] Fig.15 The present invention Fig.14 A schematic cross-sectional view along the III-III direction;

[0049] Fig.16 The present invention Fig.13 An enlarged schematic diagram of the D portion in FIG.

[0050] Fig.17 It is a three-dimensional exploded schematic diagram of the air pressure balance connection mechanism of the air pressure balance connection structure of the electric toothbrush provided in the present invention;

[0051] Fig.18 It is a three-dimensional exploded schematic diagram of the matching relationship between the air pressure balance connection mechanism, the joint bracket and the battery front cover of the air pressure balance connection structure of the electric toothbrush provided in the present invention;

[0052] Fig.19 It is a side view schematic diagram of the matching relationship between the air pressure balance connection mechanism, the joint bracket and the battery front cover of the air pressure balance connection structure of the electric toothbrush provided in the present invention;

[0053] Fig. 20 The present invention Fig.19 Schematic diagram of the cross section along the IV-IV direction;

[0054] Fig.21 The present invention Fig.19 A schematic cross-sectional view along the V-V direction;

[0055] Fig. 22 The present invention Fig.21A schematic diagram of a deformed structure;

[0056] Fig.23 It is a schematic diagram of the three-dimensional structure of the battery front cover of the air pressure balance connection structure of the electric toothbrush provided in the present invention;

[0057] Fig.24 It is a three-dimensional exploded schematic diagram of an electric toothbrush provided with a rotary switch structure provided in the present invention;

[0058] Fig.25 is a side view schematic diagram of an electric toothbrush provided with a rotary switch structure provided in the present invention;

[0059] Fig.26 The present invention Fig.25 Schematic diagram of the cross section along the II-II direction;

[0060] Fig. 27 The present invention Fig.26 The enlarged schematic diagram of the C part in FIG.

[0061] Fig.28 is a three-dimensional exploded schematic diagram of another perspective of the electric toothbrush provided with a rotary switch structure provided in the present invention;

[0062] Fig.29 is a three-dimensional structural schematic diagram of a rotary switch mechanism of the rotary switch structure provided in the present invention;

[0063] Fig.30 is a three-dimensional exploded schematic diagram of a rotary switch mechanism of a rotary switch structure provided in the present invention;

[0064] Fig.31 It is a three-dimensional exploded schematic diagram of the matching relationship between the rotary switch mechanism of the rotary switch structure provided in the present invention and the housing mechanism;

[0065] Description of reference numerals:

[0066] 1. Electric toothbrush; 10. Gum protection structure; 20. Rotary switch structure; 30. Air pressure balance connection structure; 40. Push-button switch structure; 50. Slide touch switch structure; 60. Power display structure; 11. Drive fixing assembly; 12. Drive assembly; 13. Brush head assembly; 14. Trigger assembly; 15. Electric toothbrush body; 16. Detection mechanism; 17. Battery fixing assembly; 151. Battery assembly; 171. Bottom shell; 172. Battery front cover; 111. Motor fixing seat; 112. Upper cover; 113. Shell; 114. Motor bottom plate; 115. Second through hole; 116. Connector support Frame; 1161, locking opening; 1162, locking portion; 1163, opening portion; 1164, accommodating end; 1165, fixed step end; 121, motor; 122, swing block; 123, motor body; 124, output shaft; 125, fixed platform; 141, PCB board; 142, first electrode spring; 143, second electrode spring; 1111, motor fixing seat body; 1112, sealing plate; 1113, first hanging member; 1114, second hanging member; 1115, swing hole; 1116, fixed block; 1121, upper cone cover; 1122, holding strip; 1123, first fixing hole; 1124, second fixing hole; 1141, annular body; 1142, limit frame; 1143, elastic member; 1144, first elastic member; 1145, second elastic member; 1146, third elastic member; 21, rotary switch mechanism; 22, housing mechanism; 211, main board assembly; 212, contact electrode assembly; 213, rotary reset assembly; 2111, first PCB board; 2112, second PCB board; 2113, first through hole; 2114, fixing bolt; 2121, first contact electrode; 2122, second contact electrode; 2131, torsion spring body; 2132, first fixing part ;2133, second fixed part;31, air pressure balance connection mechanism;32, button;33, button reset part;34, air cushion;341, air outlet;321, button body;322, shell limiting part;323, drive locking part;324, sealing ring;3211, limiting step;3212, pressing part;3213, first air channel;3214, sealing groove;3221, second air channel;3231, disengagement end;3232, locking end;61, touch switch;62, power indicator light;1711, button slot;1721, reset slot;1722, button hole;1723, fixing step. DETAILED DESCRIPTION

[0067] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0068] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0069] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] Electric toothbrushes are widely welcomed in the market due to their good cleaning effect. When the electric toothbrush is working, the driving component (motor) drives the brush head to generate high-frequency vibrations, breaking down the toothpaste into fine foams to deeply clean the gaps between teeth. At the same time, the vibration of the bristles can promote blood circulation in the oral cavity and have a massage effect on the gum tissue. Existing electric toothbrushes are usually equipped with batteries to provide power for the motor. However, the battery and motor in existing electric toothbrushes are usually set as an integrated structure, which results in the battery of the electric toothbrush being unable to be replaced after it is worn out, which seriously affects the service life of the electric toothbrush. At the same time, the gum tissue is relatively fragile. When the vibration intensity of the bristles of the electric toothbrush exceeds a certain threshold, it will cause damage to the gum tissue. At the same time, in order to protect the gum tissue and enrich the operating mode of the electric toothbrush, the existing electric toothbrush organizations usually set a push switch to adjust the electric toothbrush to enter different modes of operation, thereby protecting the gum tissue. However, the push switch must be designed with a window on the shell of the electric toothbrush, which seriously affects the appearance integrity of the electric toothbrush. At the same time, the window design of the shell will also bring sealing problems, and it is easy for water and other liquids to enter the interior of the electric toothbrush, thereby damaging the internal structure or circuit of the toothbrush and causing damage to the electric toothbrush.

[0071] The present invention is based on the problems in the prior art that electric toothbrushes have poor waterproof performance, are easy to damage gum tissue, and cannot replace batteries. The present invention provides an electric toothbrush, which provides a rotary switch mechanism and arranges the rotary switch mechanism in the electric toothbrush body, and electrically connects the drive assembly and the battery assembly through the rotary switch mechanism, so that the operation mode of the electric toothbrush can be adjusted by rotation. At the same time, it also avoids opening a window on the electric toothbrush body, which not only protects the integrity of the appearance of the electric toothbrush, but also improves the waterproof performance of the electric toothbrush; through the gum protection structure, the vibration intensity of the drive assembly and the brush head assembly can be detected and adjusted, and the gum structure is effectively protected; by arranging an air pressure balance connection structure for connecting the drive assembly and the battery assembly, the replacement and maintenance of the battery assembly of the electric toothbrush is facilitated; for details, please refer to the following embodiments.

[0072] Please refer to further Figure 1 and Figure 2 In the first embodiment of the present invention, there is provided an electric toothbrush 1, comprising an electric toothbrush body 15, a gum protection structure 10, an air pressure balance connection structure 30 and a rotary switch structure 20; the electric toothbrush body 15 comprises a drive assembly 12, and a brush head assembly 13 which is transmission-connected to the drive assembly 12; the gum protection structure 10 is arranged on the electric toothbrush body 15, and is used to detect and adjust the vibration intensity of the drive assembly 12 and the brush head assembly 13; the air pressure balance connection structure 30 is arranged on the electric toothbrush body 15, and is used to connect the drive assembly 12 and the battery assembly 151; the rotary switch structure 20 is arranged in the electric toothbrush body 15, and is electrically connected to the drive assembly 12 and the battery assembly 151.

[0073] It can be understood that by providing a rotary switch structure 20, and providing the rotary switch structure 20 in the electric toothbrush body 15, and electrically connecting the drive assembly 12 and the battery assembly 151 through the rotary switch structure 20, the operation mode of the electric toothbrush 1 can be adjusted by rotation. At the same time, it is also avoided to open a window on the electric toothbrush body 15, which not only protects the integrity of the appearance of the electric toothbrush 1, but also improves the waterproof performance of the electric toothbrush 1. At the same time, by setting the gum protection structure 10 and setting the gum protection structure 10 on the electric toothbrush body 15, the vibration intensity of the drive assembly 12 and the brush head assembly 13 can be detected in real time; while the drive assembly 12 drives the brush head assembly 13 to vibrate, it is also subjected to the reaction force of the brush head assembly 13, and the vibration intensity of the brush head assembly 13 can be indirectly and synchronously reflected through the swing degree of the drive assembly 12, and when the swing amplitude of the drive assembly 12 exceeds the threshold, the drive assembly 12 triggers the gum protection structure 10, thereby reducing the operating power of the drive assembly 12, so that the electric toothbrush 1 enters the weak gear mode, thereby effectively protecting the gum tissue. At the same time, by detachably connecting the drive assembly 12 and the battery assembly 151, it provides a guarantee for the replacement and maintenance of the battery assembly 151, and by setting the air pressure balance connection structure 30 for connecting the drive assembly 12 and the battery assembly 151, it further facilitates the replacement and maintenance of the battery assembly 151 of the electric toothbrush 1, and improves the service life of the electric toothbrush 1.

[0074] In some embodiments, the electric toothbrush body 15 also includes a battery assembly 151, and the battery assembly 151 is electrically connected to the drive assembly 12; the electric toothbrush 1 also includes a push-button switch structure 40 and / or a sliding touch switch structure 50 arranged on the electric toothbrush body 15 and electrically connected to the battery assembly 151 and the drive assembly 12.

[0075] It can be understood that by setting the push-button switch structure 40 and / or the sliding touch switch structure 50, not only can the overall aesthetic performance of the electric toothbrush 1 be effectively improved, but also the electric toothbrush 1 can have a multi-speed working mode and thus have different operating modes to meet the oral needs of different users.

[0076] In some embodiments, the electric toothbrush body 15 also includes a battery fixing assembly 17 detachably connected to the battery assembly 151, and the battery assembly 151 is electrically connected to the driving assembly 12; the electric toothbrush 1 also includes a power display structure 60 arranged on the battery fixing assembly 17 and electrically connected to the battery assembly 151, the power display structure 60 includes an electrically connected touch switch 61 and a power indicator light 62, the power indicator light 62 is arranged on the side end surface of the battery fixing assembly 17, and the touch switch 61 is arranged on the end surface of the battery fixing assembly 17 away from the driving assembly 12.

[0077] It can be understood that by setting up the power display structure 60, the user can know the remaining power of the electric toothbrush 1 without turning on the electric toothbrush 1, and replenish the power in time, which effectively avoids the problem that the user cannot use the electric toothbrush 1 due to the lack of power in the battery assembly 151; at the same time, by setting the power indicator light 62, the remaining power of the battery assembly 151 is further intuitively fed back, and by setting the touch switch 61, the touch switch 61 can be triggered only when it is necessary to observe the remaining power of the electric toothbrush 1, and the power indicator light 62 can be turned on, and the power indicator light 62 can be controlled to go out at a timed manner, thereby effectively saving the power of the electric toothbrush 1 and improving the battery life of the battery toothbrush.

[0078] Please refer to further Figure 3 and Figure 8 In the second embodiment of the present invention, an electric toothbrush 1 is provided, which includes a gum protection structure 10, and the gum protection structure 10 includes a detection mechanism 16; the electric toothbrush body 15 includes a driving component 12 and a brush head component 13, and the brush head component 13 is transmission-connected with the driving component 12, that is, the driving component 12 is used to drive the brush head component 13; the detection mechanism 16 is arranged on the electric toothbrush body 15, and is used to detect the vibration intensity of the driving component 12 and the brush head component 13, and when the swing amplitude of the driving component 12 exceeds a threshold value, the driving component 12 triggers the detection mechanism 16, and the detection mechanism 16 adjusts the operating power of the driving component 12 when triggered.

[0079] It can be understood that when the swing amplitude of the drive component 12 exceeds the threshold value, the drive component 12 triggers the detection mechanism 16, so that the detection mechanism 16 timely adjusts the operating power of the drive component 12, thereby realizing real-time detection and adjustment of the vibration intensity of the brush head component 13; specifically, by setting the detection mechanism 16 and setting the detection mechanism 16 on the electric toothbrush body 15, the vibration intensity of the drive component 12 and the brush head component 13 can be detected in real time; while the drive component 12 drives the brush head component 13 to vibrate, it is also subjected to the reaction force of the brush head component 13, and then the vibration intensity of the brush head component 13 can be indirectly and synchronously reflected through the swing degree of the drive component 12, and then when the swing amplitude of the drive component 12 exceeds the threshold value, the drive component 12 triggers the detection mechanism 16, thereby reducing the operating power of the drive component 12, so that the electric toothbrush enters the weak gear mode, thereby effectively protecting the gum tissue.

[0080] In some other preferred embodiments, the first end of the driving assembly 12 along the axial direction is suspended and connected to the driving fixing assembly 11, and one end of the brush head assembly 13 along the axial direction is connected to the first end of the driving assembly 12; the brush head assembly 13 is detachably connected to the driving assembly 12;

[0081] The gum protection structure 10 includes a trigger component 14 arranged at the lower end relative to the second end of the drive component 12 along the axial direction, and the trigger component 14 adjusts the operating power of the drive component 12 when triggered; when the drive component 12 is running, the drive component 12 can swing around the drive fixing component 11, and when the swing amplitude of the drive component 12 exceeds a threshold value, the drive component 12 triggers the trigger component 14.

[0082] The trigger assembly 14 includes: a PCB board 141 electrically connected to the driving assembly 12; a first electrode spring 142 arranged on the PCB board 141; a second electrode spring 143 arranged on the PCB board 141 and spaced apart from the first electrode spring 142; wherein the first electrode spring 142 is arranged between the second electrode spring 143 and the second end of the driving assembly 12; the driving assembly 12 includes: a motor 121 having one end detachably connected to the brush head assembly 13; a swing block 122 arranged on an end of the motor 121 away from the brush head assembly 13 and spaced apart from the first electrode spring 142; the driving fixing assembly 11 includes: a motor fixing seat 111 for accommodating and fixing the motor 121; an upper cover 112 sleeved on the outer periphery of the motor fixing seat 111 and rotatably connected to the motor fixing seat 111; and a motor 121 base arranged between the PCB board 141 and the motor 121 for limiting the swing space of the swing block 122.

[0083] The motor fixing base 111 is provided with a first hanging member 1113 and a second hanging member 1114 on one end close to the brush head assembly 13; the upper cover 112 is provided with a first fixing hole 1123 and a second fixing hole 1124 at positions corresponding to the first hanging member 1113 and the second hanging member 1114, the first hanging member 1113 is rotatably connected to the first fixing hole 1123, and the second hanging member 1114 is rotatably connected to the second fixing hole 1124.

[0084] Please refer to further Figure 5 In some other preferred embodiments, the electric toothbrush body 15 also includes: a driving and fixing component 11, and the first end of the driving component 12 along the axial direction is movably connected to the driving and fixing component 11; one end of the brush head component 13 along the axial direction is connected to the first end of the driving component 12; it can be understood that the driving component 12 can rotate relative to the driving and fixing component 11; further, the detection mechanism 16 includes: the trigger component 14; the trigger component 14 is arranged at the lower end relative to the second end of the driving component 12 along the axial direction, and the trigger component 14 adjusts the operating power of the driving component 12 when triggered; when the swing amplitude of the driving component 12 exceeds the threshold value, the driving component 12 presses to trigger the trigger component 14.

[0085] It should be noted that the trigger assembly 14 can also be arranged at the junction of the driving assembly 12 and the brush head assembly 13, or be arranged on the brush head assembly 13. In this embodiment, it is preferred to arrange the trigger assembly 14 at the lower end relative to the second end of the driving assembly 12 along the axial direction. It can be understood that by dynamically connecting the first end of the drive assembly 12 along the axial direction with the drive fixing assembly 11, the first end of the drive assembly 12 along the axial direction and the drive fixing assembly 11 are made to swing, and by controlling one end of the brush head assembly 13 along the axial direction to be connected to the first end of the drive assembly 12, the drive assembly 12 is also subjected to the reaction force of the brush head assembly 13 while driving the brush head assembly 13 to vibrate, and because the end of the drive assembly 12 close to the brush head assembly 13 is dynamically connected to the drive fixing assembly 11, the drive assembly 12 is made to swing synchronously, and the vibration intensity of the brush head assembly 13 can be indirectly reflected by the swing degree of the drive assembly 12, and the trigger assembly 14 is provided at the relatively lower end of the second end of the drive assembly 12 along the axial direction, and when the swing amplitude of the drive assembly 12 exceeds the threshold value, the drive assembly 12 presses to trigger the trigger assembly 14, thereby reducing the operating power of the drive assembly 12, so that the electric toothbrush 1 enters the weak gear mode, thereby effectively protecting the gingival tissue.

[0086] In some other preferred embodiments, the trigger component 14 includes: a PCB board 141, a first electrode spring 142 and a second electrode spring 143; the PCB board 141 is electrically connected to the drive component 12; the first electrode spring 142 is arranged on the PCB board 141; the second electrode spring 143 is arranged on the PCB board 141 and is spaced apart from the first electrode spring 142; the first electrode spring 142 is arranged between the second electrode spring 143 and the second end of the drive component 12; it can be understood that the PCB board 141 connects the drive component 12 to the electrode The first electrode spring 142, the first electrode spring 143 and the second end of the driving component 12 are at least partially located on the same radial cross-section, thereby ensuring that when the vibration of the brush head component 13 exceeds a threshold value, the driving component 12 swings beyond the threshold value, thereby causing the second end of the driving component 12 to press against the first electrode spring 142, so that the first electrode spring 142 contacts and presses against the second electrode spring 143, so that the triggering component 14 is triggered, thereby reducing the operating power of the driving component 12, and causing the electric toothbrush 1 to enter a weak gear mode, thereby effectively protecting the gum tissue.

[0087] Please refer to further Figures 6 to 8In some other preferred embodiments, the driving assembly 12 includes: a motor 121 and a swing block 122; the motor 121 includes a motor body 123 and an output shaft 124 which are integrally connected along the axial direction, and one end of the output shaft 124 away from the motor body 123 is detachably connected to the brush head assembly 13; the swing block 122 is arranged on the other end of the motor body 123 away from the output shaft 124, and is arranged coaxially with the output shaft 124, and is spaced apart from the first electrode spring 142. It can be understood that the output shaft 124 can be directly connected to the brush head assembly 13, or the output shaft 124 can also be connected to the brush head assembly 13 through a connecting piece; by setting the swing block 122 and making the swing block 122 away from one end of the brush head assembly 13, the swing block 122 can have the maximum swing amplitude under the minimum vibration intensity of the brush head assembly 13, thereby ensuring the protective effect of the gum protection structure 10 on the gum tissue.

[0088] Please refer to further Figures 9 and 10 In some other preferred embodiments, the driving fixing assembly 11 comprises: a motor fixing seat 111, an upper cover 112 and a shell 113; the motor fixing seat 111 is used to accommodate and fix the motor body 123; the upper cover 112 is sleeved on the outer circumference of the motor fixing seat 111 and is movably connected to the motor fixing seat 111; the upper cover 112 is detachably connected to the shell 113. It can be understood that the motor body 123 is accommodated and fixed on the motor fixing seat 111, that is, the motor fixing seat 111 swings synchronously with the motor body 123, and can swing synchronously relative to the upper cover 112, thereby realizing the fixed installation of the driving assembly 12 and the swing of the motor 121.

[0089] In some other preferred embodiments, the motor fixing seat 111 includes: a motor fixing seat body 1111, a sealing plate 1112, a first hanging member 1113 and a second hanging member 1114; the motor fixing seat body 1111 is configured as a hollow circular tube, and the motor 121 is fixed in the motor fixing seat body 1111; the sealing plate 1112 is disposed on an end of the motor fixing seat 111 away from the brush head assembly 13; the first hanging member 1113 is disposed on the motor fixing seat body 1111 close to the brush The first and second suspension members 1114 are arranged at the outer wall of one end of the motor fixing seat body 1111 near the outer wall of one end of the brush head assembly 13; wherein the first suspension member 1113 and the second suspension member 1114 are arranged at the two ends of the same diameter of the motor fixing seat body 1111, and are used to cooperate with the upper cover 112; the axis of the sealing plate 1112 is provided with a swing hole 1115 adapted to the swing block 122, and the swing block 122 is loosely matched with the sealing plate 1112. It can be understood that by setting the first and second suspension members 1113 and 1114, the first and second suspension members 1113 and 1114 form a fulcrum, and when the brush head assembly 13 vibrates, the motor 121 is driven to swing and rotate slightly around the first and second suspension members 1113 and 1114, thereby providing a guarantee for the swing block 122 to trigger the trigger assembly 14.

[0090] In some other preferred embodiments, a fixing block 1116 is axially arranged on the inner surface of the motor fixing seat body 1111, and a fixing platform 125 adapted to the fixing block 1116 is arranged on the outer surface of the motor body 123. It can be understood that by providing the fixing block 1116 and the fixing platform 125, the motor 121 and the motor fixing seat 111 are ensured to swing synchronously.

[0091] In some other preferred embodiments, the upper cover 112 includes: an upper cone cover 1121, a clamping strip 1122, a first fixing hole 1123 and a second fixing hole 1124; the upper cone cover 1121 is clamped with the upper end of the outer shell 113 along the axial direction; the clamping strip 1122 is extended and formed along the axial direction from one end of the upper cone cover 1121 away from the brush head assembly 13, and the end of the clamping strip 1122 away from the upper cone cover 1121 is clamped with the outer shell 113; the first fixing hole 1123 is arranged at the junction of the clamping strip 1122 and the upper cone cover 1121, and is used to connect the first suspension member 1113; the second fixing hole 1124 is arranged at the junction of the clamping strip 1122 and the upper cone cover 1121, and is used to connect the second suspension member 1114. It can be understood that the upper cover 112 is fixedly connected to the outer shell 113 , and the motor fixing seat 111 can swing relative to the upper cover 112 , thereby providing a guarantee for the swing block 122 to trigger the trigger assembly 14 .

[0092] In some other preferred embodiments, the driving and fixing assembly 11 also includes a motor base plate 114, which is arranged between the PCB board 141 and the motor 121 and is used to limit the swing space of the swing block 122; the motor base plate 114 includes: a circular ring body 1141, a limit frame 1142 and an elastic member 1143; the end of the swing block 122 away from the motor 121 is inserted into the limit frame 1142 and is loosely matched with the limit frame 1142; one end of the elastic member 1143 is connected to the limit frame 1142, and the other end is connected to the inner surface of the circular ring body 1141; wherein, at least one elastic member 1143 is respectively arranged at both ends of the limit frame 1142 along the radial direction of the circular ring body 1141. It can be understood that the motor base plate 114 not only plays a certain limiting role on the swing of the motor 121, but also prevents the motor 121 from damaging other structures of the electric toothbrush 1 due to violent swinging.

[0093] In some other preferred embodiments, the elastic member 1143 is configured as a U-shaped elastic member 1143, including: a first elastic member 1144, a second elastic member 1145 and a third elastic member 1146; the first elastic member 1144 is arranged between the limit frame 1142 and the circular ring body 1141; the second elastic member 1145 and the third elastic member 1146 are arranged at one end of the limit frame 1142 away from the first elastic member 1144; wherein the first elastic member 1144, the second elastic member 1145 and the third elastic member 1146 are arranged in a radial shape in a herringbone shape, the first electrode spring 142 and the second electrode spring 143 are arranged between the second elastic member 1145 and the third elastic member 1146, and the first electrode spring 142 is arranged between the second electrode spring 143 and the first elastic member 1144. It can be understood that by setting the elastic member 1143 as a U-shaped elastic member 1143, the elastic member 1143 can enable the drive assembly 12 to be reset and adjusted in time, and by setting at least one elastic member 1143 at each of the two radial ends of the limit frame 1142 along the ring body 1141, the drive assembly 12 can be effectively balanced.

[0094] Furthermore, the first suspension member 1113 and the second suspension member 1114 are arranged in a cross shape with the first elastic member 1144 , the second elastic member 1145 and the third elastic member 1146 , thereby ensuring that the swing block 122 swings back and forth along the setting direction of the first elastic member 1144 , the second elastic member 1145 and the third elastic member 1146 .

[0095] Please refer to further Fig.11 and Fig.23 In the third embodiment of the present invention, there is provided an electric toothbrush 1, which includes an air pressure balance connection structure 30, and the air pressure balance connection structure 30 includes an air pressure balance connection mechanism 31; the electric toothbrush body 15 includes a driving component 12 and a battery component 151, and the battery component 151 is electrically connected to the driving component 12 to provide energy for the driving component 12, and the air pressure balance connection mechanism 31 is arranged on the electric toothbrush body 15, and is used to connect the driving component 12 and the battery component 151.

[0096] It can be understood that by detachably connecting the drive assembly 12 and the battery assembly 151, the replacement and maintenance of the battery assembly 151 is guaranteed, and by providing a pressure balance connection mechanism 31 for connecting the drive assembly 12 and the battery assembly 151, the replacement and maintenance of the battery assembly 151 of the electric toothbrush 1 is further facilitated, thereby improving the service life of the electric toothbrush 1. It should be noted that the electric toothbrush body 15 also includes a brush head assembly 13, which is transmission-connected to the drive assembly 12 and is arranged on one end of the drive assembly 12 away from the battery assembly 151 along the axial direction of the electric toothbrush body 15.

[0097] In some other preferred embodiments, the electric toothbrush body 15 further includes: a battery assembly 151 electrically connected to the drive assembly 12; the air pressure balance connection structure 30 includes: a detachably connected drive fixing assembly 11 and a battery fixing assembly 17, and an air pressure balance connection mechanism 31 disposed on the electric toothbrush body 15 for connecting the drive assembly 12 and the battery assembly 151; the drive fixing assembly 11 is provided with a joint bracket 116, and the drive assembly 12 is disposed on the drive fixing assembly 11; The battery fixing assembly 17 is provided with a bottom shell 171 and a battery front cover 172, and the battery assembly 151 is arranged on the bottom shell 171 and the battery front cover 172; wherein, the battery assembly 151 is detachably connected to the driving assembly 12, the connector bracket 116 is detachably connected to the battery front cover 172, one end of the air pressure balance connection mechanism 31 is detachably connected to the bottom shell 171, the battery assembly 151 and the battery front cover 172, and the other end of the air pressure balance connection mechanism 31 is detachably connected to the connector bracket 116.

[0098] The air pressure balance connection mechanism 31 includes: a button 32 which is slidably connected to the battery fixing assembly 17, the battery assembly 151 and the connector bracket 116, and is provided with a first air channel 3213 and a second air channel 3221 which are vertically connected; a button reset member 33 which is sleeved on the button 32 between the bottom shell 171 and the battery assembly 151 and is used to push the button 32 to automatically lock the driving assembly 12; an air cushion 34 which is accommodated in the second air channel 3221 and is used to seal the second air channel 3221, and air outlets 341 which are connected to the second air channel 3221 are provided at both ends of the air cushion 34; wherein one end of the button 32 is snap-fitted to the connector bracket 116.

[0099] In some other preferred embodiments, the air pressure balancing connection structure 30 also includes a drive fixing component 11 and a battery fixing component 17, and the drive fixing component 11 and the battery fixing component 17 are detachably connected; the drive component 12 is arranged on the drive fixing component 11, and the battery component 151 is arranged on the battery fixing component; it can be understood that the drive component 12 is fixed on the drive fixing component 11, and the battery component 151 is fixed on the battery fixing component, that is, by detachably connecting the drive fixing component 11 and the battery fixing component 17, a guarantee is provided for realizing a detachable connection between the battery component 151 and the drive component 12.

[0100] Further, the drive fixing assembly 11 is provided with a joint bracket 116, and the joint bracket 116 is provided at one end of the connection between the drive fixing assembly 11 and the battery fixing assembly 17, that is, the drive assembly 12 is provided at one end of the joint bracket 116, and the other end is provided toward the battery assembly 151. The battery fixing assembly 17 is provided with a bottom shell 171 and a battery front cover 172, and the battery assembly 151 is provided between the bottom shell 171 and the battery front cover 172, and the battery front cover 172 is provided at one end of the bottom shell 171 facing the drive fixing assembly 11;

[0101] It should be noted that the battery assembly 151 is detachably connected to the drive assembly 12, the connector bracket 116 is detachably connected to the battery front cover 172, one end of the air pressure balance connection mechanism 31 is detachably connected to the bottom shell 171, the battery assembly 151 and the battery front cover 172, and the other end of the air pressure balance connection mechanism 31 is detachably connected to the connector bracket 116.

[0102] Please refer to further Fig.14 Furthermore, the battery assembly 151 and the battery fixing assembly 17 are configured as a power socket 18, and the drive assembly 12, the drive fixing assembly 11 and the brush head assembly 13 constitute a toothbrush handle 19; the air pressure balance connection mechanism 31 is disposed on the power socket 18, and when the electric toothbrush 1 is used, the power socket 18 is connected to the toothbrush handle 19, and when the battery assembly 151 needs to be removed, the power socket 18 can be removed from the toothbrush handle 19; at the same time, the removed power socket 18 can also be used as a mobile power source.

[0103] It can be understood that the air pressure balance connection mechanism 31 is fixed to one side of the battery assembly 151 and the battery fixing assembly 17. When the electric toothbrush 1 is assembled, the battery assembly 151 and the driving assembly 12 are first detachably connected and then electrically connected. When the battery assembly 151 and the driving assembly 12 are connected, the battery fixing assembly 17 and the driving fixing assembly 11 are also in a mutually connected state, thereby providing a guarantee for the replacement and maintenance of the battery assembly 151.

[0104] Please refer to further Figure 15 to Figure 16 In some other preferred embodiments, the air pressure balance connection mechanism 31 includes: a button 32 and a button reset member 33; the button 32 is slidably connected with the battery fixing assembly 17, the battery assembly 151 and the connector bracket 116 in sequence from the outside to the inside along the radial direction of the electric toothbrush body 15; the button reset member 33 is sleeved on the button 32 between the bottom shell 171 and the battery assembly 151, and is used to push the button 32 to automatically lock the driving assembly 12.

[0105] It can be understood that the air pressure balance connection mechanism 31 provided in this embodiment controls whether the battery assembly 151 and the drive assembly 12 can be disassembled through the air pressure balance connection mechanism 31, and connects the battery fixing assembly 17 and the drive fixing assembly 11 through the button 32, thereby also realizing the connection between the battery assembly 151 and the drive assembly 12. At the same time, the button 32 can slide relative to the electric toothbrush body 15 and be reset under the action of the button reset member 33, thereby realizing the connection and disassembly between the battery assembly 151 and the drive assembly 12.

[0106] Please refer to further Fig.17 In some other preferred embodiments, the button 32 includes: a button body 321, a shell limiting portion 322 and a drive locking portion 323; the shell limiting portion 322 is arranged on one end of the button body 321 in the length direction, and is used to limit the button body 321 in the bottom shell 171; the drive locking portion 323 is arranged on one end of the button body 321 in the length direction away from the shell limiting portion 322, and is used to lock and fix the connector bracket 116.

[0107] It can be understood that the user disassembles or installs the battery assembly 151 and the drive assembly 12 by pressing the shell limit portion 322; the drive locking portion 323 is used to connect the battery assembly 151 and the drive assembly 12; that is, when installing the battery assembly 151, press the shell limit portion 322 of the button 32; after assembly, release the shell limit portion 322, and the drive locking portion 323 of the button 32, under the action of the button reset member 33, the drive locking portion 323 locks and fixes the battery assembly 151 and the drive assembly 12; when disassembling the battery assembly 151, press the shell limit portion 322 of the button 32 to remove the battery assembly 151 and the battery fixing assembly 17; thereby facilitating the disassembly and installation operations of the battery assembly 151 of the electric toothbrush 1.

[0108] In some other preferred embodiments, the shell limiting portion 322 includes a limiting step 3211 and a pressing portion 3212 arranged at one end of the limiting step 3211 away from the button body 321; the end of the bottom shell 171 facing the driving fixing component 11 is provided with a button groove 1711; the aperture of the button groove 1711 is smaller than the outer diameter of the limiting step 3211, and the limiting step 3211 cooperates with the inner surface of the bottom shell 171, and the pressing portion 3212 is slidably connected with the button groove 1711; it can be understood that Specifically, the limiting step 3211 of the shell limiting portion 322 is accommodated inside the bottom shell 171, and the pressing portion 3212 can slide relative to the button groove 1711 and can partially extend out of the bottom shell 171, thereby facilitating the user to press the button 32 and quickly disassemble or install the battery assembly 151 of the electric toothbrush 1, and also effectively preventing the button 32 from detaching from the bottom shell 171, and the limiting step 3211 can also effectively seal the button groove 1711, thereby improving the sealing performance of the electric toothbrush 1.

[0109] Please refer to further Figures 18 to 23 Further, the battery front cover 172 is provided with a reset groove 1721 at the position corresponding to the button groove 1711, and a button hole 1722 is opened at the axis of the reset groove 1721, and a fixed step 1723 is provided at the junction of the button hole 1722 and the reset groove 1721; the button body 321 is slidably connected to the button hole 1722; the button reset member 33 is configured as a reset spring, one end of the button reset member 33 is fixed on the end surface of the limiting step 3211 away from the pressing portion 3212, and the other end of the button reset member 33 is fixed between the reset groove 1721 and the fixed step 1723, and the button body 321 is slidably connected to the button hole 1722.

[0110] It can be understood that one end of the button reset member 33 is pressed against the end surface of the limiting step 3211 away from the pressing portion 3212, one end of the button reset member 33 is pressed against the bottom of the reset groove 1721, and the end of the button reset member 33 away from the limiting step 3211 is sleeved on the outer peripheral surface of the fixing step 1723, so that the button 32 can slide relative to the battery fixing assembly 17, the battery assembly 151, the drive assembly 12 and the drive fixing assembly 11, thereby providing a guarantee for quickly disassembling or installing the battery assembly 151 of the electric toothbrush 1.

[0111] In some other preferred embodiments, the button body 321 is provided with a first air channel 3213 at the axis, the housing limit portion 322 is provided with a second air channel 3221 extending along the circumference of the electric toothbrush body 15 and vertically connected to the first air channel 3213; the air pressure balance connection mechanism 31 further includes: an air cushion 34 accommodated in the second air channel 3221 and used to seal the second air channel 3221; wherein the air cushion 34 is provided with air outlets 341 connected to the second air channel 3221 at both ends along the circumference of the electric toothbrush body 15. The outer periphery of the button body 321 is provided with a sealing groove 3214, and the button 32 further includes a sealing ring 324, which is sleeved in the sealing groove 3214.

[0112] It can be understood that by opening the first air channel 3213 and the second air channel 3221 on the button 32, and setting the air cushion 34, and setting the air outlet 341 on the air cushion 34, and in the assembled state, the air outlet 341 of the air cushion 34 is only pressed against the inner surface of the bottom shell 171 under the action of the button reset member 33, and then is sealed, and the sealing ring 324 is used to seal the button hole 1722, thereby effectively improving the sealing performance of the electric toothbrush 1.

[0113] When disassembling the power seat 18 (battery assembly 151 and battery fixing assembly 17), after pressing the button 32, the air outlet 341 of the air cushion 34 is separated from the inner surface of the bottom shell 171, so that the outside air enters the interior of the electric toothbrush body 15, which facilitates the disassembly of the power seat 18; at the same time, when installing the power seat 18, press the button 32 to compress the button reset member 33, and clamp the connector bracket 116 of the toothbrush handle 19 (drive assembly 12, drive fixing assembly 11 and brush head assembly 13) on the drive locking portion 323 of the button 32. At this time, release the button 32, and the button reset member 33 pushes the button 32 toward the bottom shell. 171 is reset, so that the air outlet 341 of the air cushion 34 contacts the inner surface of the bottom shell 171 and is sealed, so that a closed space is formed inside the electric toothbrush body 15, and the reset spring is completely reset at this time, and the air cushion 34 is set as an elastic air cushion 34, and then the button reset member 33 continues to push the button 32 out of the electric toothbrush body 15. At this time, the air cushion 34 is compressed, and then a negative pressure state is formed inside the electric toothbrush 1, which improves the waterproof performance of the electric toothbrush body 15 and improves the connection stability of the power socket 18 and the toothbrush handle 19, that is, the connection stability between the battery assembly 151 and the drive assembly 12 is improved.

[0114] In some other preferred embodiments, the drive locking portion 323 includes an integrally formed disengagement end 3231 and a locking end 3232, and the locking end 3232 is arranged at one end of the disengagement end 3231 away from the shell limiting portion 322, and the outer diameter of the disengagement end 3231 is smaller than the outer diameter of the locking end 3232; the connector bracket 116 is correspondingly provided with a locking opening 1161 extending along the axial direction of the connector bracket 116, and the locking opening 1161 includes a locking portion 1162, and an opening portion 1163 arranged on a side of the locking portion 1162 close to the battery assembly 151; wherein, the outer diameter of the locking end 3232 is smaller than the inner diameter of the locking portion 1162, the outer diameter of the disengagement end 3231 is smaller than the inner diameters of the locking portion 1162 and the opening portion 1163, and the size of the junction of the opening portion 1163 and the locking portion 1162 is smaller than the maximum outer diameter of the locking portion 1162.

[0115] It can be understood that the locking end 3232 is engaged with the locking portion 1162 of the connector bracket 116, and the disengagement end 3231 can freely enter and exit the locking port 1161. Then, when installing the battery assembly 151, the button 32 is pressed down so that the disengagement end 3231 and the locking port 1161 are in the same plane. At this time, the power socket 18 is inserted along the axial direction of the electric toothbrush body 15 so that the disengagement end 3231 enters the opening portion 1163 and the locking portion 1162 in turn, and then the button 32 is released so that the locking portion 1162 slides into the locking portion 1162, and the button 32 is fixedly connected to the connector bracket 116, thereby finally achieving a fixed connection between the battery assembly 151 and the drive assembly 12.

[0116] In some other preferred embodiments, the locking portion 1162 includes: an accommodating end 1164 and a fixed step end 1165; the accommodating end 1164 is adapted to the locking end 3232; the fixed step end 1165 is arranged on the side of the accommodating end 1164 close to the shell limiting portion 322; wherein, the inner diameter of the fixed step end 1165 is smaller than the outer diameter of the locking end 3232, and the outer diameter of the disengagement end 3231 is smaller than the inner diameter of the fixed step end 1165; the size of the junction of the opening portion 1163 and the locking portion 1162 is smaller than the maximum outer diameter of the locking portion 1162, and the maximum outer diameter of the disengagement portion is smaller than the size of the junction of the opening portion 1163 and the locking portion 1162.

[0117] It can be understood that when the disengagement portion slides into the locking portion 1162, the button reset member 33 pushes the button 32, so that the locking end 3232 slides into the accommodating end 1164 and is stopped by the fixed step end 1165, thereby finally completing the assembly of the power socket 18 and the toothbrush handle 19. By controlling the relative dimensions among the fixed step end 1165, the accommodating end 1164, the locking end 3232 and the disengagement end 3231, the button 32 can be effectively prevented from accidentally disengaging from the connector bracket 116, thereby improving the connection strength between the battery assembly 151 and the drive assembly 12.

[0118] In other preferred embodiments, the accommodating end 1164 cooperates with the conical surface of the locking end 3232, and the inner diameter of the accommodating end 1164 decreases in the direction toward the fixed step end 1165; the opening portion 1163 is configured to be a trumpet shape, and the inner diameter of the opening portion 1163 decreases in the direction toward the locking portion 1162.

[0119] It can be understood that by matching the conical surface of the accommodating end 1164 with the locking end 3232, a guiding effect is played when the locking end 3232 matches the accommodating end 1164, and the locking end 3232 can be easily slid into the accommodating end 1164; the opening portion 1163 is set to a trumpet shape to facilitate the clamping of the connector bracket 116 and the button 32.

[0120] Please refer to further Fig.24 and Fig.31 In the fourth embodiment of the present invention, there is provided an electric toothbrush 1, which includes a rotary switch structure 20, and the rotary switch structure 20 includes a rotary switch mechanism 21; the electric toothbrush body 15 includes a driving component 12 and a battery component 151, and the battery component 151 is electrically connected to the driving component 12; the rotary switch mechanism 21 is arranged in the electric toothbrush body 15, and is electrically connected to the driving component 12 and the battery component 151.

[0121] It can be understood that by providing a rotary switch mechanism 21, and providing the rotary switch mechanism 21 in the electric toothbrush body 15, and electrically connecting the drive assembly 12 and the battery assembly 151 through the rotary switch mechanism 21, the operation mode of the electric toothbrush 1 can be adjusted by rotation; at the same time, it is also avoided to open a window on the electric toothbrush body 15, which not only protects the integrity of the appearance of the electric toothbrush 1, but also improves the waterproof performance of the electric toothbrush 1. It should be noted that the electric toothbrush body 15 also includes a brush head assembly 13, which is transmission-connected to the drive assembly 12 and is provided on one end of the drive assembly 12 away from the battery assembly 151 along the axial direction of the electric toothbrush body 15.

[0122] In some other preferred embodiments, the rotary switch structure 20 includes: a mainboard component 211; a contact electrode component 212 arranged on the mainboard component 211; a rotation reset component 213 arranged on the mainboard component 211 and used to control the closing or opening of the contact electrode component 212; the mainboard component 211 includes: a first PCB board 2111 fixedly connected to the drive fixing component 11 and electrically connected to the drive component 12; a second PCB board 2112 fixedly connected to the battery component 151, electrically connected to the battery component 151, and spaced apart from the first PCB board 2111; the contact electrode component 212 includes: a first contact electrode 2121 arranged on the end surface of the first PCB board 2111 facing the second PCB board 2112 and electrically connected to the first PCB board 2111; and a second contact electrode 2122 arranged on the end surface of the second PCB board 2112 facing the first PCB board 2111 and electrically connected to the second PCB board 2112.

[0123] The axial spacing between the first PCB board 2111 and the second PCB board 2112 along the electric toothbrush body 15 is smaller than the sum of the axial heights of the first contact electrode 2121 and the second contact electrode 2122 along the electric toothbrush body 15; the first contact electrode 2121 and / or the second contact electrode 2122 are configured as elastic spring electrodes; or, the first contact electrode 2121 is configured as a spring electrode, and the second contact electrode 2122 is configured as a copper column electrode; or, the first contact electrode 2121 is configured as a copper column electrode, and the second contact electrode 2122 is configured as a spring electrode.

[0124] Please refer to Figure 29 to Figure 31 In some other preferred embodiments, the rotary switch mechanism 21 includes: a mainboard assembly 211, a contact electrode assembly 212 and a rotational reset assembly 213; the contact electrode assembly 212 is arranged on the mainboard assembly 211; the rotational reset assembly 213, the rotational reset assembly 213 is arranged on the mainboard assembly 211, and is used to control the contact electrode assembly 212 to be closed or opened.

[0125] It can be understood that various circuit structures and circuit components are arranged in the mainboard assembly 211, and the specific arrangement of the circuit structures and circuit components is the prior art, which will not be described in detail in this embodiment; the contact electrode assembly 212 is arranged on the mainboard assembly 211 and is electrically connected to the mainboard assembly 211; the contact electrode assembly 212 is triggered to close (electrically connected) by rotation, and then the contact electrode assembly 212 is controlled to reset by the rotation reset assembly 213, thereby providing a guarantee for continuing to adjust the different operating modes of the electric toothbrush 1; that is, when the contact electrode assembly 212 is triggered, the rotation reset assembly 213 is compressed, and after the electric toothbrush body 15 is released, the rotation reset assembly 213 is automatically reset.

[0126] In some other preferred embodiments, the rotary switch structure 20 further includes a housing mechanism 22 . It can be understood that the drive assembly 12 , the battery assembly 151 and the rotary switch mechanism 21 are accommodated and fixed in the housing mechanism 22 .

[0127] Furthermore, the shell mechanism 22 includes: a drive fixing component 11 and a battery fixing component 17; the drive component 12 is arranged on the drive fixing component 11, and the battery component 151 is arranged on the battery fixing component 17; wherein, the drive fixing component 11 and the battery fixing component 17 are arranged separately.

[0128] It can be understood that by separately arranging the drive fixing component 11 and the battery fixing component 17, and arranging the drive component 12 on the drive fixing component 11, and arranging the battery component 151 on the battery fixing component 17; it provides a guarantee for arranging a rotary switch mechanism 21 between the drive component 12 and the battery component 151.

[0129] In some other preferred embodiments, the mainboard assembly 211 includes: a first PCB board 2111 and a second PCB board 2112; the first PCB board 2111 is fixedly connected to the drive fixing assembly 11 and electrically connected to the drive assembly 12; the second PCB board 2112 is fixedly connected to the battery assembly 151 and electrically connected to the battery assembly 151; wherein the first PCB board 2111 and the second PCB board 2112 are arranged at intervals along the axial direction of the electric toothbrush body 15.

[0130] It can be understood that by setting the mainboard assembly 211 as the first PCB board 2111 and the second PCB board 2112, and controlling the first PCB board 2111 and the second PCB board 2112 to be set at an axial interval along the electric toothbrush body 15, the relative rotation between the first PCB board 2111 and the second PCB board 2112 can be controlled, thereby providing a guarantee for setting a rotary switch mechanism 21 between the drive assembly 12 and the battery assembly 151.

[0131] In some other preferred embodiments, the contact electrode assembly 212 includes: a first contact electrode 2121 and a second contact electrode 2122; the first contact electrode 2121 is arranged on the end surface of the first PCB board 2111 facing the second PCB board 2112, and is electrically connected to the first PCB board 2111; the second contact electrode 2122 is arranged on the end surface of the second PCB board 2112 facing the first PCB board 2111, and is electrically connected to the second PCB board 2112; wherein, the first contact electrode 2121 and the second contact electrode 2122 are conductive when in contact.

[0132] It can be understood that the first PCB board 2111 and the driving component 12 are fixedly connected to the driving fixed component 11, the second PCB board 2112 and the battery component 151 are fixedly connected to the battery component 151, and the driving fixed component 11 and the battery component 151 are separately arranged; and the first contact electrode 2121 is arranged on the first PCB board 2111, and the second contact electrode 2122 is arranged on the second PCB board 2112; it can be understood that the first contact electrode 2121, the first PCB board 2111, the driving component 12 and the driving fixed component 11, and the second contact electrode 2122, the second PCB board 2112, the battery component 151 and the battery fixed component 17 can rotate relative to each other, thereby realizing the rotational adjustment control of the operating mode of the electric toothbrush 1.

[0133] In other preferred embodiments, the first PCB board 2111 is configured as a fixed PCB board, and the second PCB board 2112 is configured as a rotating PCB board; the first contact electrode 2121 is vertically arranged on the first PCB board 2111, and the second contact electrode 2122 is vertically arranged on the second PCB board 2112, and the axial spacing between the first PCB board 2111 and the second PCB board 2112 along the electric toothbrush body 15 is less than the sum of the heights of the first contact electrode 2121 and the second contact electrode 2122 along the axial direction of the electric toothbrush body 15.

[0134] It can be understood that by controlling the axial spacing of the first PCB board 2111 and the second PCB board 2112 along the electric toothbrush body 15 to be smaller than the sum of the heights of the first contact electrode 2121 and the second contact electrode 2122 along the axial direction of the electric toothbrush body 15, it is ensured that the first contact electrode 2121 and the second contact electrode 2122 partially overlap in the axial direction of the electric toothbrush body 15, thereby ensuring that when the rotary switch structure 20 is rotated, the first contact electrode 2121 and the second contact electrode 2122 can contact each other; of course, after the first contact electrode 2121 and the second contact electrode 2122 can contact each other, under the action of the rotation reset component 213, the first contact electrode 2121 and the second contact electrode 2122 are out of contact with each other; that is, only when the first contact electrode 2121 and the second contact electrode 2122 are in contact with each other, the operation mode of the electric toothbrush 1 can be adjusted, and after the operation mode of the power toothbrush is adjusted, the first contact electrode 2121 and the second contact electrode 2122 are not in contact with each other.

[0135] In some other preferred embodiments, the first contact electrode 2121 and / or the second contact electrode 2122 are configured as elastic spring electrodes; it can be understood that the first contact electrode 2121 and the second contact electrode 2122 can be configured as elastic spring electrodes at the same time; or, either the first contact electrode 2121 or the second contact electrode 2122 is configured as an elastic spring electrode; by configuring the first contact electrode 2121 and / or the second contact electrode 2122 as elastic spring electrodes, the first contact electrode 2121 and / or the second contact electrode 2122 can have a certain elastic deformation ability, effectively avoiding damage to the structure of the first contact electrode 2121 and / or the second contact electrode 2122 due to excessive force in rotating the rotary switch structure 20, thereby ensuring the practical life of the rotary switch structure 20.

[0136] In some other preferred embodiments, the first contact electrode 2121 is configured as a spring electrode, and the second contact electrode 2122 is configured as a copper pillar electrode; or, the first contact electrode 2121 is configured as a copper pillar electrode, and the second contact electrode 2122 is configured as a spring electrode.

[0137] It can be understood that by setting any one of the first contact electrode 2121 and the second contact electrode 2122 as a spring electrode and the other as a copper column electrode, soft contact between the first contact electrode 2121 and the second contact electrode 2122 can be ensured, and insufficient strength of the first contact electrode 2121 and the second contact electrode 2122 can be avoided to prevent the continued rotation of the rotary switch structure 20 in a timely and effective manner, thereby avoiding damage to other structures of the rotary switch structure 20, thereby ensuring the rotational adjustment of the electric toothbrush 1 and the service life of the electric toothbrush 1.

[0138] In some other preferred embodiments, the rotation reset component 213 is configured as a torsion spring; it can be understood that by configuring the rotation reset component 213 as a torsion spring, timely resetting of other structures of the rotary switch structure 20 is ensured, the cost of the rotary switch structure 20 is reduced, and the operating stability of the rotary switch is improved.

[0139] Furthermore, the torsion spring includes: a torsion spring body 2131, a first fixing portion 2132 and a second fixing portion 2133; one end of the first fixing portion 2132 is connected to one end of the torsion spring body 2131, and the other end of the first fixing portion 2132 is connected to the first PCB board 2111 and the drive fixing assembly 11; one end of the second fixing portion 2133 is connected to one end of the torsion spring body 2131 away from the first fixing portion 2132, and the other end of the second fixing portion 2133 is connected to the second PCB board 2112.

[0140] It can be understood that the first PCB board 2111 and the driving fixing assembly 11 can rotate relative to the second PCB board 2112. The torsion spring body 2131 is a spiral structure and is also the main elastic deformation part. The first PCB board 2111 and the driving fixing assembly 11 are connected through the first fixing portion 2132, and then the second PCB board 2112 is connected through the second fixing portion 2133. By relatively rotating the driving fixing assembly 11 and the battery fixing assembly 17, the rotation directions of the driving fixing assembly 11 and the battery fixing assembly 17 are controlled to be opposite, thereby synchronously driving the first fixing portion 2132 and the second fixing portion 2133 to rotate in opposite directions, thereby compressing the torsion spring body 2131.

[0141] In other preferred embodiments, the torsion spring body 2131, the first fixing portion 2132 and the second fixing portion 2133 are integrally formed; the first fixing portion 2132 is detachably connected to the first PCB board 2111 and the driving fixing assembly 11 along the axial direction of the electric toothbrush body 15; the second fixing portion 2133 is directly or indirectly vertically connected to the second PCB board 2112 along the radial direction of the electric toothbrush body 15.

[0142] Furthermore, a first through hole 2113 is provided on the first PCB board 2111 along the axial direction of the electric toothbrush body 15, and a second through hole 115 is provided on the drive fixing assembly 11 along the axial direction of the electric toothbrush body 15, and the first through hole 2113 and the second through hole 115 are arranged opposite to each other along the axial direction of the electric toothbrush body 15; a fixing bolt 2114 is provided on the second PCB board 2112, and the fixing bolt 2114 is perpendicular to the second PCB board 2112 along the axial direction of the electric toothbrush body 15, and extends vertically along the end surface of the second PCB board 2112 away from the first PCB board 2111; it can be understood that the first fixing portion 2132 partially extends into the first through hole 2113 and the second through hole 115, thereby fixing the first PCB board 2111 and the drive fixing assembly 11; the second fixing portion 2133 is clamped on the fixing bolt 2114, thereby fixing the second PCB board 2112, which provides a guarantee for the timely resetting of the rotary switch structure 20.

[0143] In summary, the present invention provides an electric toothbrush, which includes: an electric toothbrush body, the electric toothbrush body including a drive assembly, a battery assembly electrically connected to the drive assembly, and a brush head assembly transmission-connected to the drive assembly; a gum protection structure, the gum protection structure is arranged on the electric toothbrush body, and is used to detect and adjust the vibration intensity of the drive assembly and the brush head assembly; an air pressure balance connection structure, the air pressure balance connection structure is arranged on the electric toothbrush body, and is used to connect the drive assembly and the battery assembly; a rotary switch structure, the rotary switch structure is arranged in the electric toothbrush body, and is electrically connected to the drive assembly and the battery assembly. It can be understood that by providing a rotary switch structure, and providing the rotary switch structure in the electric toothbrush body, and electrically connecting the drive assembly and the battery assembly through the rotary switch structure, the operation mode of the electric toothbrush can be adjusted by rotation. At the same time, it is also avoided to open a window on the electric toothbrush body, which not only protects the integrity of the appearance of the electric toothbrush, but also improves the waterproof performance of the electric toothbrush; through the gum protection structure, the vibration intensity of the drive assembly and the brush head assembly can be detected and adjusted, effectively protecting the gum structure; by providing an air pressure balance connection structure for connecting the drive assembly and the battery assembly, the replacement and maintenance of the battery assembly of the electric toothbrush is facilitated.

[0144] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. An electric toothbrush, characterized in that: include: An electric toothbrush body, the electric toothbrush body comprising a drive assembly, a battery assembly electrically connected to the drive assembly, and a brush head assembly transmission-connected to the drive assembly; A gum protection structure, which is disposed on the electric toothbrush body and is used to detect and adjust the vibration intensity of the drive assembly and the brush head assembly; An air pressure balancing connection structure, which is disposed on the electric toothbrush body and is used to connect the drive assembly and the battery assembly; A rotary switch structure, which is disposed in the electric toothbrush body and electrically connected to the drive assembly and the battery assembly; The electric toothbrush body further comprises: a driving and fixing assembly; a first end of the driving assembly along the axial direction is suspended and connected to the driving and fixing assembly, and one end of the brush head assembly along the axial direction is connected to the first end of the driving assembly; the brush head assembly is detachably connected to the driving assembly; The gum protection structure includes a trigger assembly arranged at a lower end of the second end of the drive assembly along the axial direction, and the trigger assembly adjusts the operating power of the drive assembly when triggered; when the drive assembly is running, the drive assembly can swing around the drive fixing assembly, and when the swing amplitude of the drive assembly exceeds a threshold value, the drive assembly triggers the trigger assembly; The trigger component comprises: a PCB board electrically connected to the driving component; a first electrode spring arranged on the PCB board; a second electrode spring arranged on the PCB board and spaced apart from the first electrode spring; wherein the first electrode spring is arranged between the second electrode spring and the second end of the driving component; The driving assembly comprises: a motor having one end detachably connected to the brush head assembly; a swing block disposed on an end of the motor away from the brush head assembly and spaced apart from the first electrode spring; The driving fixing assembly comprises: a motor fixing seat for accommodating and fixing the motor; an upper cover sleeved on the outer periphery of the motor fixing seat and rotatably connected to the motor fixing seat; a motor base arranged between the PCB board and the motor and used for limiting the swinging space of the swing block; A first hanging member and a second hanging member are provided on one end of the motor fixing seat close to the brush head assembly; a first fixing hole and a second fixing hole are provided at positions of the upper cover corresponding to the first hanging member and the second hanging member, the first hanging member is rotatably connected to the first fixing hole, and the second hanging member is rotatably connected to the second fixing hole; The air pressure balance connection structure comprises: a battery fixing assembly detachably connected to the drive fixing assembly, and an air pressure balance connection mechanism disposed on the electric toothbrush body and used to connect the drive assembly and the battery assembly; the drive fixing assembly is provided with a joint bracket, and the drive assembly is disposed on the drive fixing assembly; the battery fixing assembly is provided with a bottom shell and a battery front cover, and the battery assembly is disposed on the bottom shell and the battery front cover; wherein, the battery assembly is detachably connected to the drive assembly, the joint bracket is detachably connected to the battery front cover, one end of the air pressure balance connection mechanism is detachably connected to the bottom shell, the battery assembly and the battery front cover, and the other end of the air pressure balance connection mechanism is detachably connected to the joint bracket; The air pressure balance connection mechanism comprises: A button which is slidably connected to the battery fixing assembly, the battery assembly and the connector bracket and is provided with a first air passage and a second air passage which are vertically connected; A button reset member sleeved on the button between the bottom shell and the battery assembly and used for pushing the button to automatically lock the drive assembly; An air cushion contained in the second air channel and used to seal the second air channel, and air outlets communicating with the second air channel are arranged at both ends of the air cushion; Wherein, one end of the button is clamped with the connector bracket; The rotary switch structure comprises: a mainboard assembly; a contact electrode assembly disposed on the mainboard assembly; a rotary reset assembly disposed on the mainboard assembly for controlling the closing or opening of the contact electrode assembly; The mainboard assembly comprises: a first PCB board fixedly connected to the driving fixed assembly and electrically connected to the driving assembly; a second PCB board fixedly connected to the battery assembly and electrically connected to the battery assembly and spaced apart from the first PCB board; The contact electrode assembly includes: a first contact electrode disposed on the end surface of the first PCB board facing the second PCB board and electrically connected to the first PCB board; a second contact electrode disposed on the end surface of the second PCB board facing the first PCB board and electrically connected to the second PCB board; The axial spacing between the first PCB board and the second PCB board of the electric toothbrush body is smaller than the sum of the heights of the first contact electrode and the second contact electrode of the electric toothbrush body. The first contact electrode and the second contact electrode are configured as elastic spring electrodes; or, the first contact electrode is configured as a spring electrode, and the second contact electrode is configured as a copper pillar electrode; or, the first contact electrode is configured as a copper pillar electrode, and the second contact electrode is configured as a spring electrode.

2. The electric toothbrush according to claim 1, characterized in that: The electric toothbrush also includes a push-button switch structure or a sliding touch switch structure which is arranged on the electric toothbrush body and is electrically connected to the battery assembly and the drive assembly.

3. The electric toothbrush according to claim 1, characterized in that: The electric toothbrush also includes a power display structure arranged on the battery fixing assembly and electrically connected to the battery assembly. The power display structure includes an electrically connected touch switch and a power indicator light. The power indicator light is arranged on the side end surface of the battery fixing assembly, and the touch switch is arranged on the end surface of the battery fixing assembly away from the driving assembly.

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