Staggered electric toothbrush capable of realizing Pasteur tooth brushing method

Abstract

The invention relates to the technical field of oral care, in particular to a staggered electric toothbrush capable of realizing a Pasteur tooth brushing method, which comprises a replaceable cleaning module and a handle module. The brush head is designed to be in a U shape, outer bristles and inner bristles are clustered, and the bristles are driven to move in a staggered mode through the left transmission rod and the right transmission rod, so that horizontal vibration brushing is achieved. Compared with the prior art, the toothbrush can more effectively clean tooth slits and subgingival areas, reduces gingival injury, is suitable for sensitive people to use, and improves the comfort level. And the cleaning module can be easily replaced, so that the maintenance is simple and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of oral care, in particular to a staggered electric toothbrush capable of implementing the Bass brushing method. Background Art

[0002] As people's health awareness increases and living standards improve, the public's attention to oral health and dental care is increasing. The Bass brushing method, also known as the horizontal vibration brushing method, is a widely respected scientific brushing technique. This method uses a slight horizontal vibration back and forth to make the bristles move horizontally on each tooth in a small range. It is recognized and promoted by the American Dental Association. However, it is often difficult to strictly follow the essentials of the Bass brushing method with traditional manual brushing, resulting in unsatisfactory cleaning results.

[0003] In recent years, electric toothbrushes have gradually become the new favorite in the market due to their convenience and efficiency. Electric toothbrushes on the market are mainly divided into two categories: rotary electric toothbrushes and sonic electric toothbrushes. Rotary electric toothbrushes clean teeth through the circular motion of the brush head, but their design has obvious limitations. First, it is difficult for rotary electric toothbrushes to penetrate deep into the gaps between teeth and the area between the tooth roots and gums, which are often hiding places for plaque and food debris. Secondly, rotary electric toothbrushes may cause "sweeping" damage to the roots and ends of teeth during brushing, which runs counter to the correct brushing method and may cause gum damage and tooth wear.

[0004] Sonic electric toothbrushes use high-frequency vibrations to clean teeth. Compared with rotary electric toothbrushes, their cleaning effect is improved and they will not cause sweeping damage to the tooth surface. However, sonic electric toothbrushes also have shortcomings. First, the area between the tooth root and the gums is a cleaning "blind spot" for sonic toothbrushes, making it difficult to completely remove plaque. Second, the "bouncing" vibration of a sonic toothbrush may cause discomfort to people with sensitive teeth, such as the elderly, children, and people with periodontal disease, and may even aggravate damage to teeth and gums. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention proposes a new type of electric toothbrush, which aims to solve the problems that the existing electric toothbrush is difficult to implement the Bass brushing method, has poor cleaning effect and may cause damage to the gums. To this end, the technical solution adopted by the present invention is: A staggered electric toothbrush capable of implementing the Bass brushing method, comprising a replaceable cleaning module and a handle module plugged and locked with the cleaning module. Different from the prior art, the cleaning module comprises a brush head, a cleaning shell and a docking cover blocking the lower end of the cleaning shell; The brush head comprises a bottom plate, a core plate and a top plate, wherein the top plate is provided with a notch opening at the upper end, and is U-shaped as a whole, and outer bristles are clustered on the upper surface, and inner bristles are clustered on the upper surface of the core plate corresponding to the notch, and the ends of the outer bristles and the inner bristles are flush; one end of the bottom plate and the top plate close to the handle module is fixedly connected to the right transmission rod and is fixed together through them, and one end of the core plate close to the handle module is fixedly connected to the left transmission rod; the right transmission rod and the left transmission rod are configured to be able to reciprocate relative to each other along their length directions, driving the outer bristles and the inner bristles to move alternately, and performing horizontal vibration brushing on the teeth; The outer contour of the cleaning shell is small at the top and large at the bottom to form a brush neck and a brush shoulder, and the inner cavity of the upper section of the cleaning shell is slidably matched with the upper sections of the right transmission rod and the left transmission rod.

[0006] Furthermore, it also includes a latex sheath, which covers the lower surface of the bottom plate, the side surfaces of the bottom plate, the core plate and the top plate, the edge of the upper surface of the top plate and part of the right transmission rod and the left transmission rod.

[0007] Furthermore, two convex ridges are provided on the upper surface of the bottom plate and the lower surface of the top plate in the up-down direction, and the convex ridges abut against the upper surface or the lower surface of the core plate; the cross-sectional shape of the right transmission rod is semicircular, the cross-sectional shape of the left transmission rod is crescent-shaped, and the overall contours of the right transmission rod and the left transmission rod are circular.

[0008] Furthermore, the handle module includes a rechargeable battery installed in the handle housing, a motor driven by the rechargeable battery and a converter assembly that converts the rotary motion into asynchronous linear motion, the converter assembly includes a U-shaped bracket, the lower end face of the U-shaped bracket is rotated with a lower bevel gear fixedly connected to the motor shaft of the motor, a left bevel gear and a left pinion are rotated inside and outside the left side plate near the lower end of the U-shaped bracket, a right bevel gear and a right pinion are rotated inside and outside the right side plate near the lower end of the U-shaped bracket, a left crank and a left large gear are rotated inside and outside the left side plate near the upper end of the U-shaped bracket, and a left bevel gear and a left large gear are rotated near the upper end of the U-shaped bracket. A right crank and a right large gear are respectively arranged inside and outside the right side plate of the end, and the left crank and the right crank are respectively connected to one end of the left connecting rod and the right connecting rod, and the other ends of the left connecting rod and the right connecting rod are respectively connected to the left cross bar and the right cross bar; the lower bevel gear is respectively meshed with the left bevel gear and the right bevel gear, the left pinion is meshed with the left large gear, and the right pinion is meshed with the right large gear; a lower middle guide sleeve is fixedly arranged in the middle part of the upper end of the U-shaped bracket, and the left guide rod and the right guide rod are slidably matched in the lower middle guide sleeve, the left cross bar is fixedly connected to the left guide rod after passing through the lower middle guide sleeve with a gap, and the right cross bar is fixedly connected to the right guide rod after passing through the lower middle guide sleeve with a gap.

[0009] Further, the right transmission rod and the left transmission rod are non-contactly connected with the left guide rod and the right guide rod through a transmission pair; the transmission pair includes an output portion located at the upper end of the handle module and a receiving portion located at the lower end of the cleaning module; The output part includes an output seat fixedly arranged at the upper end of the U-shaped bracket, and the output seat includes a lower left guide sleeve and a lower right guide sleeve located on both sides of the lower middle guide sleeve, and the lower left piston and the lower right piston are slidably matched in the lower left guide sleeve and the lower right guide sleeve, and the upper ends of the lower left piston and the lower right piston are fixedly connected with the lower left strong magnet and the lower right strong magnet whose diameters are less than or equal to them; the left connecting plate and the right connecting plate are respectively fixedly connected to the left guide rod and the right guide rod, and the left connecting plate gap passes through the lower middle guide sleeve and the lower left guide sleeve and is hinged to the lower left piston, and the right connecting plate gap passes through the lower middle guide sleeve and the lower right guide sleeve and is hinged to the lower right piston; The receiving part includes a receiving seat fixedly connected to the inner end surface of the docking cover, and the receiving seat includes an upper middle guide sleeve that slides with the lower sections of the right transmission rod and the left transmission rod, and the left and right sides of the upper middle guide sleeve are respectively provided with an upper left guide sleeve and an upper right guide sleeve with closed inner ends, and the upper left piston and the upper right piston are slidably matched in the upper left guide sleeve and the upper right guide sleeve, and the lower ends of the upper left piston and the upper right piston are fixed with a diameter less than or equal to their upper left strong magnet and upper right strong magnet, and the magnetic poles of the opposite ends of the upper left strong magnet and the lower left strong magnet are the same, and the magnetic poles of the opposite ends of the upper right strong magnet and the lower right strong magnet are the same; springs are arranged between the upper left piston and the top wall of the upper left guide sleeve and between the upper right piston and the top wall of the upper right guide sleeve, and the screws pass through the lower ends of the left transmission rod and the right transmission rod respectively, and then pass through the upper middle guide sleeve, the upper left guide sleeve and the upper right guide sleeve, and are respectively screwed with the upper left piston and the upper right piston.

[0010] Furthermore, it also includes a plug for sealing the lower end of the handle shell, and a wireless charging coil is integrated inside the plug.

[0011] Furthermore, it also includes a control module, which includes a PCB control board fixed in the handle housing, a speed control button and a start / stop button exposed outside the handle housing, the speed control button can adjust the speed of the motor, the motor starts after pressing the start / stop button, and stops after pressing it again.

[0012] Furthermore, a WiFi module is integrated on the PCB control board to be suitable for customized settings through a mobile phone APP, including time settings, intensity settings and mode settings, to meet the personalized needs of different users.

[0013] Furthermore, the hardness of the outer bristles is greater than the hardness of the inner bristles.

[0014] Furthermore, the handle module is provided with an indicator light for indicating the working status and power status of the toothbrush.

[0015] Compared with the prior art, the beneficial technical effects of the present invention are: 1. Implementing the Bass brushing method: The electric toothbrush of the present invention is designed to implement the Bass brushing method, that is, the horizontal vibration brushing method, which is a widely recognized scientific brushing technology that helps to improve the teeth cleaning effect.

[0016] 2. Improve cleaning effect: Through the staggered design of the electric toothbrush, the ends of the outer and inner bristles are flush, which can perform more effective horizontal vibration brushing on the teeth, deeply cleaning the areas between the teeth and the roots and gums, which are often the hiding places of plaque and food debris.

[0017] 3. Reduce gum damage: The electric toothbrush of the present invention adopts a relative reciprocating motion design, which avoids the "sweeping" damage to the tooth roots and tooth ends that may be caused by a rotary electric toothbrush, thereby reducing the risk of gum damage and tooth wear.

[0018] 4. Protecting people with sensitive teeth: Compared with traditional sonic electric toothbrushes, the electric toothbrush of the present invention reduces the discomfort that may be caused to people with sensitive teeth, such as the elderly, children and people with periodontal diseases, because it does not use "bouncing" vibration, but a more gentle horizontal vibration brushing.

[0019] 5. Improve user comfort: The design of the electric toothbrush of the present invention takes the user experience into consideration. By implementing the Bass brushing method, unnecessary pressure on gums and teeth is reduced, thereby improving user comfort.

[0020] 6. Durability and easy maintenance: The electric toothbrush of the present invention is covered with latex, which enhances the durability and service life of the product. At the same time, the replaceable cleaning module design also makes it easier to replace the brush head regularly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a schematic structural diagram of the cleaning module of the present invention.

[0023] Figure 3 It is a schematic structural diagram of the brush head of the present invention.

[0024] Figure 4 for Figure 3 Schematic diagram of the structure behind the latex foreskin.

[0025] Figure 5 for Figure 4Schematic diagram of the structure after the components are separated.

[0026] Figure 6 for Figure 5 A partial enlarged view of point A in the middle.

[0027] Figure 7 for Figure 2 Bottom view of .

[0028] Figure 8 for Figure 7 Cross-sectional view at the middle BB.

[0029] Fig. 9 for Figure 7 Partial cross-sectional view at COC.

[0030] Fig.10 It is a structural schematic diagram of the receiving seat of the present invention.

[0031] Fig.11 for Fig.10 Schematic diagram of the structure from another perspective.

[0032] Fig.12 It is a structural schematic diagram of the handle module of the present invention.

[0033] Fig.13 for Fig.12 Schematic diagram of the structure after the handle housing is hidden.

[0034] Fig.14 for Fig.13 Schematic diagram of the structure from another perspective.

[0035] Fig.15 for Fig.14 A partial enlarged view of point D in the middle.

[0036] Fig.16 for Fig.15 Schematic diagram of the structure after the middle U-shaped bracket and output seat are cut. DETAILED DESCRIPTION

[0037] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0038] 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 an indirect connection through an intermediate medium, or it can be the internal connection 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.

[0039] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] As shown in the accompanying drawings, a staggered electric toothbrush capable of implementing the Bass brushing method comprises a replaceable cleaning module 100 and a handle module 200 plugged and locked with the cleaning module 100, wherein the cleaning module 100 comprises a brush head 101, a cleaning housing 102 and a docking cover 103 blocking the lower end of the cleaning housing 102; The brush head 101 includes a bottom plate 1011, a core plate 1012 and a top plate 1013. The top plate 1013 has a notch with an upper opening, and is U-shaped as a whole. External bristles 1014 are clustered on the upper surface. The core plate 1012 has internal bristles 1015 clustered on the upper surface corresponding to the notch. The ends of the external bristles 1014 and the internal bristles 1015 are flush. The bottom plate 1011 and the top plate 1013 are fixedly connected to the right transmission rod 1016 at one end close to the handle module 200 and are fixed together through them. The core plate 1011 is 012 A left transmission rod 1017 is fixedly connected to one end of the handle module 200; the right transmission rod 1016 and the left transmission rod 1017 are configured to be able to reciprocate relative to each other along their length directions, driving the outer bristles 1014 and the inner bristles 1015 to move alternately, and brushing the teeth horizontally with vibration; this is consistent with the brushing technique of the Bass method, and the alternate movement of the outer bristles 1014 and the inner bristles 1015 can effectively remove food debris and dental plaque on the tooth surface and in between teeth, while reducing irritation and damage to the gums.

[0041] The outer contour of the cleaning shell 102 is small at the top and large at the bottom to form a brush neck and a brush shoulder. The inner cavity of the upper section of the cleaning shell 102 is slidably matched with the upper sections of the right transmission rod 1016 and the left transmission rod 1017.

[0042] In another preferred embodiment, a latex foreskin 1018 is also included, and the latex foreskin 1018 covers the lower surface of the bottom plate 1011, the side surfaces of the bottom plate 1011, the core plate 1012 and the top plate 1013, the edge of the upper surface of the top plate 1013 and part of the right transmission rod 1016 and the left transmission rod 1017. It helps to protect the transmission rod from damage, and also reduces the discomfort that may be caused when the transmission rod directly contacts the oral cavity. The design of the latex foreskin 1018 also takes into account hygiene factors, and can form a sealed environment to prevent moisture and dirt from entering the interior of the brush head, thereby reducing the possibility of internal deposition. Keep the transmission mechanism clean and operate smoothly. And a more preferred way is that the open end of the latex foreskin 1018 is glued together with the edge of the upper surface of the top plate 1013 by an adhesive, and the lower end is also glued together with the upper end of the cleaning shell 102 by an adhesive.

[0043] In another preferred embodiment, the upper surface of the bottom plate 1011 and the lower surface of the top plate 1013 are provided with two convex ridges 1019 along the up-down direction, and the convex ridges 1019 abut against the upper surface or the lower surface of the core plate 1012; the cross-sectional shape of the right transmission rod 1016 is semicircular, the cross-sectional shape of the left transmission rod 1017 is crescent-shaped, and the overall contours of the right transmission rod 1016 and the left transmission rod 1017 are circular. In this way, the surface contact is transformed into line contact, reducing the friction.

[0044] In this embodiment, the handle module 200 includes a rechargeable battery 202 installed in a handle housing 201, a motor 203 driven by the rechargeable battery 202, and a converter assembly 204 for converting the rotary motion into an asynchronous linear motion. The converter assembly 204 includes a U-shaped bracket 2041, and a lower bevel gear 2042 fixedly connected to the motor shaft of the motor 203 is disposed on the lower end surface of the U-shaped bracket 2041. A left bevel gear 2043 and a left small gear 2044 are respectively provided inside and outside the left plate at the lower end, a right bevel gear 2045 and a right small gear 2046 are respectively provided inside and outside the right plate near the lower end of the U-shaped bracket 2041, a left crank 2047 and a left large gear 2048 are respectively provided inside and outside the left plate near the upper end of the U-shaped bracket 2041, and a right crank 2049 and a right large gear 2049 are respectively provided inside and outside the right plate near the upper end of the U-shaped bracket 2041. 410, the left crank 2047 and the right crank 2049 are connected to one end of the left connecting rod 20414 and the right connecting rod 20415 respectively, and the other ends of the left connecting rod 20414 and the right connecting rod 20415 are connected to the left cross bar 20416 and the right cross bar 20417 respectively; the lower bevel gear 2042 is meshed with the left bevel gear 2043 and the right bevel gear 2045 respectively, the left small gear 2044 is meshed with the left large gear 2048, and the right small gear 204 6 is meshed with the right large gear 20410; a lower middle guide sleeve 20411 is fixedly arranged in the middle of the upper end of the U-shaped bracket 2041, and the left guide rod 20412 and the right guide rod 20413 are slidably matched in the lower middle guide sleeve 20411, and the left cross bar 20416 passes through the lower middle guide sleeve 20411 with a gap and is fixedly connected to the left guide rod 20412, and the right cross bar 20417 passes through the lower middle guide sleeve 20411 with a gap and is fixedly connected to the right guide rod 20413.

[0045] The following is a detailed explanation of the motion process of the left guide rod 20412 and the right guide rod 20413 to achieve relative rubbing: 1. Rotation of the lower bevel gear 2042: When the motor 203 drives the lower bevel gear 2042 to rotate clockwise, the rotational motion is transmitted to the left bevel gear 2043 and the right bevel gear 2045 through the meshing gears.

[0046] 2. Movement of the left bevel gear 2043: The lower bevel gear 2042 meshes with the left bevel gear 2043. Due to the transmission characteristics of the gear meshing, the left bevel gear 2043 will rotate counterclockwise. This is because the two meshing gears have the same number of teeth and rotate in opposite directions.

[0047] 3. Movement of right bevel gear 2045: Similarly, lower bevel gear 2042 meshes with right bevel gear 2045, and right bevel gear 2045 rotates clockwise. This is also due to the transmission characteristics of gear meshing, that is, the meshing gears have the same number of teeth and the same rotation direction.

[0048] 4. Meshing of pinion gears with large gears: The left pinion gear 2044 meshes with the left large gear 2048, and the right pinion gear 2046 meshes with the right large gear 20410. These meshings further transmit the rotational motion and may change the torque and speed.

[0049] 5. Function of the crank-connecting rod mechanism: The left crank 2047 and the right crank 2049 are connected to the left connecting rod 20414 and the right connecting rod 20415 respectively, converting the rotational motion of the gear into the reciprocating linear motion of the connecting rod.

[0050] 6. Relative motion of guide rods: The left guide rod 20412 and the right guide rod 20413 are respectively connected to the left crossbar 20416 and the right crossbar 20417. Since the left connecting rod 20414 and the right connecting rod 20415 move in opposite directions, the left guide rod 20412 and the right guide rod 20413 will produce relative twisting, that is, asynchronous linear motion.

[0051] 7. Interlaced motion of the brush head: This relative rubbing causes the left transmission rod 1016 and the right transmission rod 1017 to produce asynchronous linear motion, which in turn drives the outer bristles 1014 and the inner bristles 1015 of the brush head 101 to move in an interlaced manner, thereby achieving horizontal vibrating brushing.

[0052] Through this design, the electric toothbrush can simulate the slight horizontal vibration action recommended in the Bass brushing method, improving cleaning efficiency while reducing damage to gums and teeth. This unique mechanical conversion mechanism is the key to achieving efficient cleaning of electric toothbrushes.

[0053] In this embodiment, the right transmission rod 1016 and the left transmission rod 1017 are non-contactly connected to the left guide rod 20412 and the right guide rod 20413 through a transmission pair 300; the transmission pair 300 includes an output portion 301 located at the upper end of the handle module 200 and a receiving portion 302 located at the lower end of the cleaning module 100; The output part 301 includes an output seat 3011 fixedly mounted on the upper end of the U-shaped bracket 2041, and the output seat 3011 includes a lower left guide sleeve 30112 and a lower right guide sleeve 30113 located on both sides of the lower middle guide sleeve 20411, and the lower left guide sleeve 30112 and the lower right guide sleeve 30113 are slidably matched with a lower left piston 3014 and a lower right piston 3015, and the upper end fixed diameters of the lower left piston 3014 and the lower right piston 3015 are less than or equal to their diameters. A lower left strong magnet 3016 and a lower right strong magnet 3017; a left connecting plate 3018 and a right connecting plate 3019 are fixed to the left guide rod 20412 and the right guide rod 20413 respectively, the left connecting plate 3018 passes through the lower middle guide sleeve 20411 and the lower left guide sleeve 30112 in a gap and is hinged to the lower left piston 3014, and the right connecting plate 3019 passes through the lower middle guide sleeve 20411 and the lower right guide sleeve 30113 in a gap and is hinged to the lower right piston 3015; The receiving portion 302 includes a receiving seat 3021 fixedly connected to the inner end surface of the docking cover 103, and the receiving seat 3021 includes an upper middle guide sleeve 30211 that is slidably matched with the lower sections of the right transmission rod 1016 and the left transmission rod 1017. The left and right sides of the upper middle guide sleeve 30211 are respectively provided with a left upper guide sleeve 30212 and a right upper guide sleeve 30213 with closed inner ends, and the left upper guide sleeve 30212 and the right upper guide sleeve 30213 are slidably matched with the left upper piston 3022 and the right upper piston 3023. The lower ends of the left upper piston 3022 and the right upper piston 3023 are fixedly connected to the left upper strong magnet 3024 and the right upper strong magnet 3024 of which the diameter is less than or equal to that of the upper piston 3022 and the upper right piston 3023. 25. The magnetic poles of the opposite ends of the upper left ferromagnet 3024 and the lower left ferromagnet 3016 are the same, and the magnetic poles of the opposite ends of the upper right ferromagnet 3025 and the lower right ferromagnet 3017 are the same; a spring 2026 is arranged between the upper left piston 3022 and the top wall of the upper left guide sleeve 30212 and between the upper right piston 3023 and the top wall of the upper right guide sleeve 30213; the screw 2027 passes through the lower ends of the left transmission rod 1017 and the right transmission rod 1016 respectively, and then passes through the upper middle guide sleeve 30211, the upper left guide sleeve 30212 and the upper right guide sleeve 30213, and is screwed to the upper left piston 3022 and the upper right piston 3023 respectively.

[0054] Here is an explanation of how power transfer can be achieved without direct contact: 1. Magnetic pole configuration and magnetic force: The opposite ends of the upper left strong magnet 3024 and the lower left strong magnet 3016 have the same magnetic poles, and the opposite ends of the upper right strong magnet 3025 and the lower right strong magnet 3017 also have the same magnetic poles. When these magnets are close to each other, a repulsive force will be generated due to the principle that like poles repel each other. As the gap between the two magnets decreases, the magnetic repulsive force will gradually increase. This change can be used to control and transmit motion.

[0055] 2. Magnetic-driven motion: The repulsive effect of the magnetic force pushes the upper left piston 3022 and the upper right piston 3023 to move in their respective guide sleeves, and then transmits the force to the left transmission rod 1016 and the right transmission rod 1017 through the screw 2027 to achieve asynchronous linear motion.

[0056] 3. Restoration of the spring: The spring 2026 is installed between the upper left piston 3022 and the upper left guide sleeve 30212 and between the upper right piston 3023 and the upper right guide sleeve 30213. The elastic force of the spring provides the necessary restoring force, so that the piston can quickly return to the initial position after the magnetic force weakens or disappears. The spring not only ensures the smooth retraction of the transmission rod, but also helps to reduce vibration and impact, ensuring the smooth operation of the transmission system, so that the electric toothbrush can work continuously and stably.

[0057] 4. Telescopic movement of the transmission rod: The left transmission rod 1016 and the right transmission rod 1017 extend under the action of the magnetic force, pushing the outer bristles 1014 and the inner bristles 1015 of the brush head 101 to perform staggered movement. After the movement is completed, the spring force causes the transmission rod to retract, completing a complete reciprocating motion cycle.

[0058] 5. Staggered motion of the brush head: The asynchronous linear motion of the left transmission rod 1016 and the right transmission rod 1017 drives the outer bristles 1014 and the inner bristles 1015 of the brush head 101 to move in a staggered manner, simulating the horizontal vibrating brushing action of the Bass brushing method.

[0059] The non-contact transmission of this embodiment reduces mechanical wear, lowers noise, improves transmission efficiency, and makes replacement of the cleaning module 100 more convenient because the power transmission route will not be affected by the replacement of the cleaning module.

[0060] In another preferred embodiment, it also includes a plug 205 for blocking the lower end of the handle housing 201, and the plug 205 has an integrated wireless charging coil inside. The plug 205 is designed to block the lower end of the handle housing 201. It not only seals and protects the internal components, but also integrates a wireless charging coil inside it. This design allows the electric toothbrush to be charged through wireless charging technology, improving the user's convenience. The wireless charging coil is responsible for receiving energy from the wireless charger when the electric toothbrush needs to be charged. When the toothbrush is placed on a compatible wireless charging base, the coil can induce current from the magnetic field of the base to charge the battery of the electric toothbrush. Wireless charging eliminates the trouble of plugging and unplugging the charging cable. The user only needs to place the electric toothbrush on the charging base to start charging, making the charging process simpler and faster. Through wireless charging, the charging interface of the electric toothbrush does not need to be exposed to the outside, reducing the possibility of water and dust entering the internal circuit, thereby improving the waterproof performance of the product.

[0061] In another preferred embodiment, a control module is further included, the control module includes a PCB control board 401 fixed in the handle housing 201, a speed adjustment button 402 and a start / stop button 403 exposed outside the handle housing 201, the speed adjustment button 402 can adjust the speed of the motor 203, the motor 203 starts after pressing the start / stop button 403, and stops after pressing again. The speed adjustment button 402 allows the user to adjust the speed of the motor 203, thereby changing the vibration intensity of the brush head to meet different brushing needs. The start / stop button 403 is used to control the start and stop of the motor 203, providing an intuitive operating experience.

[0062] In another preferred embodiment, the PCB control board 401 is integrated with a WiFi module to enable customized settings through a mobile phone APP, including time settings, intensity settings, and mode settings, to meet the personalized needs of different users. Through the mobile phone APP, users can set the time, intensity, and mode settings, making the operation of the toothbrush more personalized and meeting the specific needs of different users.

[0063] In another preferred embodiment, the hardness of the outer bristles 1014 is greater than that of the inner bristles 1015. The hardness of the outer bristles 1014 is greater than that of the inner bristles 1015, and this design helps to clean the tooth surface more effectively while protecting the gums from excessive friction.

[0064] In another preferred embodiment, the handle module 200 is provided with an indicator light for indicating the working state and power state of the toothbrush. The indicator light provided on the handle module 200 is used to display the working state and power state of the toothbrush, provide real-time feedback, and help the user understand the use of the toothbrush.

[0065] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

[0066] The matters not described in detail in the present invention are the prior art or common knowledge in the field.

Claims

1. A staggered electric toothbrush capable of implementing the Bass brushing method, comprising a replaceable cleaning module (100) and a handle module (200) plugged and locked with the cleaning module (100), characterized in that: The cleaning module (100) comprises a brush head (101), a cleaning shell (102), and a connecting cover (103) for sealing the lower end of the cleaning shell (102); The brush head (101) comprises a bottom plate (1011), a core plate (1012) and a top plate (1013); the top plate (1013) is provided with a notch with an upper end opening, and is overall U-shaped and has outer bristles (1014) clustered on the upper surface; the core plate (1012) has inner bristles (1015) clustered on the upper surface corresponding to the notch; the ends of the outer bristles (1014) and the inner bristles (1015) are flush; the bottom plate (1011) and the top plate (1013) are provided with a notch with an upper end opening, and the outer bristles (1014) and the inner bristles (1015) are arranged on the same surface; ) one end of the core plate (1012) close to the handle module (200) is fixedly connected to the right transmission rod (1016) and they are fixed as a whole, and one end of the core plate (1012) close to the handle module (200) is fixedly connected to the left transmission rod (1017); the right transmission rod (1016) and the left transmission rod (1017) are configured to be able to reciprocate relative to each other along their length directions, driving the outer bristles (1014) and the inner bristles (1015) to move alternately, thereby performing horizontal vibration brushing on the teeth; The outer contour of the cleaning shell (102) is small at the top and large at the bottom to form a brush neck and a brush shoulder, and the inner cavity of the upper section of the cleaning shell (102) is slidably matched with the upper sections of the right transmission rod (1016) and the left transmission rod (1017).

2. The staggered electric toothbrush capable of implementing the Bass brushing method according to claim 1, characterized in that: It also includes a latex foreskin (1018), which covers the lower surface of the bottom plate (1011), the side surfaces of the bottom plate (1011), the core plate (1012) and the top plate (1013), the edge of the upper surface of the top plate (1013) and part of the right transmission rod (1016) and the left transmission rod (1017).

3. The staggered electric toothbrush capable of implementing the Bass brushing method according to claim 1, characterized in that: The upper surface of the bottom plate (1011) and the lower surface of the top plate (1013) are provided with two convex ridges (1019) along the up-down direction, and the convex ridges (1019) abut against the upper surface or the lower surface of the core plate (1012); the cross-sectional shape of the right transmission rod (1016) is semicircular, and the cross-sectional shape of the left transmission rod (1017) is crescent-shaped; the overall contours of the right transmission rod (1016) and the left transmission rod (1017) are circular.

4. The staggered electric toothbrush capable of implementing the Bass brushing method according to claim 1, characterized in that: The handle module (200) comprises a rechargeable battery (202) installed in a handle housing (201), a motor (203) driven by the rechargeable battery (202), and a converter assembly (204) for converting the rotary motion into asynchronous linear motion, wherein the converter assembly (204) comprises a U-shaped bracket (2041), a lower bevel gear (2042) fixedly connected to a motor shaft of the motor (203) is disposed on the lower end surface of the U-shaped bracket (2041), and a left side plate near the lower end of the U-shaped bracket (2041) is provided. A left bevel gear (2043) and a left small gear (2044) are respectively arranged inside and outside the right side plate close to the lower end of the U-shaped bracket (2041), a right bevel gear (2045) and a right small gear (2046) are respectively arranged inside and outside the right side plate close to the upper end of the U-shaped bracket (2041), a left crank (2047) and a left large gear (2048) are respectively arranged inside and outside the left side plate close to the upper end of the U-shaped bracket (2041), a right crank (2049) and a right large gear (20410) are respectively arranged inside and outside the right side plate close to the upper end of the U-shaped bracket (2041), and the left The crank (2047) and the right crank (2049) are respectively connected to one end of the left connecting rod (20414) and the right connecting rod (20415), and the other ends of the left connecting rod (20414) and the right connecting rod (20415) are respectively connected to the left crossbar (20416) and the right crossbar (20417); the lower bevel gear (2042) is respectively meshed with the left bevel gear (2043) and the right bevel gear (2045), the left small gear (2044) is meshed with the left large gear (2048), and the right small gear (2046) and The right large gear (20410) is meshed; a lower middle guide sleeve (20411) is fixedly arranged in the middle of the upper end of the U-shaped bracket (2041), and the left guide rod (20412) and the right guide rod (20413) are slidably matched in the lower middle guide sleeve (20411); the left cross bar (20416) passes through the lower middle guide sleeve (20411) with a gap and is fixedly connected to the left guide rod (20412); the right cross bar (20417) passes through the lower middle guide sleeve (20411) with a gap and is fixedly connected to the right guide rod (20413).

5. The staggered electric toothbrush capable of implementing the Bass brushing method according to claim 4, characterized in that: The right transmission rod (1016) and the left transmission rod (1017) are non-contactly connected to the left guide rod (20412) and the right guide rod (20413) via a transmission pair (300); the transmission pair (300) comprises an output portion (301) located at the upper end of the handle module (200) and a receiving portion (302) located at the lower end of the cleaning module (100); The output portion (301) comprises an output seat (3011) fixedly mounted on the upper end of the U-shaped bracket (2041), the output seat (3011) comprising a lower left guide sleeve (30112) and a lower right guide sleeve (30113) located on both sides of the lower middle guide sleeve (20411), the lower left guide sleeve (30112) and the lower right guide sleeve (30113) slidingly engaging with a lower left piston (3014) and a lower right piston (3015), the upper ends of the lower left piston (3014) and the lower right piston (3015) having a fixed diameter less than or equal to the diameter of their left pistons. A lower strong magnet (3016) and a lower right strong magnet (3017); a left connecting plate (3018) and a right connecting plate (3019) are fixedly connected to the left guide rod (20412) and the right guide rod (20413), respectively; the left connecting plate (3018) passes through the lower middle guide sleeve (20411) and the lower left guide sleeve (30112) in a gap and is hinged to the lower left piston (3014); the right connecting plate (3019) passes through the lower middle guide sleeve (20411) and the lower right guide sleeve (30113) in a gap and is hinged to the lower right piston (3015); The receiving portion (302) comprises a receiving seat (3021) fixedly connected to the inner end surface of the docking cover (103), the receiving seat (3021) comprising an upper middle guide sleeve (30211) slidably matched with the lower sections of the right transmission rod (1016) and the left transmission rod (1017), a left upper guide sleeve (30212) and a right upper guide sleeve (30213) with closed inner ends are respectively arranged on the left and right sides of the upper middle guide sleeve (30211), the left upper piston (3022) and the right upper piston (3023) are slidably matched in the left upper guide sleeve (30212) and the right upper guide sleeve (30213), the lower ends of the left upper piston (3022) and the upper right piston (3023) are fixedly connected with a diameter less than or equal to the diameter of their left upper strong magnet (3024) and the right upper strong magnet (3024). 25), the magnetic poles of the opposite ends of the upper left ferromagnet (3024) and the lower left ferromagnet (3016) are the same, and the magnetic poles of the opposite ends of the upper right ferromagnet (3025) and the lower right ferromagnet (3017) are the same; a spring (2026) is arranged between the upper left piston (3022) and the top wall of the upper left guide sleeve (30212) and between the upper right piston (3023) and the top wall of the upper right guide sleeve (30213); a screw (2027) passes through the lower ends of the left transmission rod (1017) and the right transmission rod (1016) respectively, and then passes through the upper middle guide sleeve (30211), the upper left guide sleeve (30212) and the upper right guide sleeve (30213) in a gap, and is screwed to the upper left piston (3022) and the upper right piston (3023) respectively.

6. The staggered electric toothbrush capable of implementing the Bass brushing method according to claim 4, characterized in that: It also includes a plug (205) for sealing the lower end of the handle housing (201), wherein a wireless charging coil is integrated inside the plug (205).

7. The staggered electric toothbrush capable of implementing the Bass brushing method according to claim 4, characterized in that: The invention also comprises a control module, the control module comprising a PCB control board (401) fixedly arranged in the handle housing (201), a speed regulating button (402) and a start / stop button (403) exposed outside the handle housing (201), the speed regulating button (402) being capable of regulating the rotation speed of the motor (203), the motor (203) being started when the start / stop button (403) is pressed, and being stopped when the start / stop button (403) is pressed again.

8. The staggered electric toothbrush capable of implementing the Bass brushing method according to claim 7, characterized in that: The PCB control board (401) is integrated with a WiFi module to enable custom settings to be performed via a mobile phone APP, including time settings, intensity settings and mode settings, so as to meet the personalized needs of different users.

9. A staggered electric toothbrush capable of implementing the Bass brushing method according to any one of claims 1 to 7, characterized in that: The hardness of the outer bristles (1014) is greater than the hardness of the inner bristles (1015).

10. A staggered electric toothbrush capable of implementing the Bass brushing method according to any one of claims 1 to 7, characterized in that: The handle module (200) is provided with an indicator light for indicating the working state and power state of the toothbrush.

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