A telescopic electric toothbrush

Abstract

The utility model provides a telescopic electric toothbrush, including handle and toothbrush head, the inside fixed mounting of handle has the mounting panel, the side of mounting panel is connected with the installation cylinder body, be provided with drive assembly between installation cylinder body and mounting panel, drive assembly is used for driving installation cylinder body to run up and down in handle inside, to drive toothbrush head and stretch out or contract to handle in, the other side mounting of mounting panel has control mainboard, and is connected with waterproof apron in the outside close to control mainboard, be connected with sealing washer between waterproof apron and mounting panel. The utility model discloses through setting up mounting panel and drive assembly in handle inside, can realize the toothbrush head to drive fast movement in use, to realize its telescopic adjustment, to facilitate in use and carrying, the toothbrush head is protected fast and is stored, to prevent the toothbrush head to appear and be polluted and be damaged.

Description

Technical Field

[0001] This utility model belongs to the field of electric toothbrush technology, and more specifically, it relates to a telescopic electric toothbrush. Background Technology

[0002] An electric toothbrush is an oral care tool that uses an electric motor to drive the brush head, causing it to vibrate or rotate at high frequencies to clean teeth. It generally consists of a handle, battery, motor, brush head, and control system. Compared to traditional manual toothbrushes, electric toothbrushes are more efficient at removing plaque and food debris, and their vibration frequency and intensity are relatively stable, reducing damage to teeth and gums caused by improper brushing force. Furthermore, some electric toothbrushes offer multiple cleaning modes, such as daily cleaning, sensitive care, and whitening, to meet the oral care needs of different users.

[0003] Existing electric toothbrushes, because their brush heads are typically detachably attached to the handle, are prone to bending between the brush head and handle when traveling or carrying them without removing the brush head. This can even lead to structural damage. Furthermore, since the brush head is directly exposed, it is easily contaminated during use. Therefore, this paper researches and improves upon the existing structure and its shortcomings to provide a retractable electric toothbrush, aiming to achieve greater practicality. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a telescopic electric toothbrush, which is achieved by the following specific technical means:

[0005] A telescopic electric toothbrush includes a handle and a toothbrush head. An installation plate is fixedly mounted inside the handle. A mounting cylinder is slidably connected to one side of the installation plate. A drive assembly is disposed between the mounting cylinder and the installation plate. The drive assembly drives the mounting cylinder to move up and down inside the handle, thereby causing the toothbrush head to extend or retract into the handle. A control mainboard is mounted on the other side of the installation plate, and a waterproof cover is connected to the outer side near the control mainboard. A sealing gasket is connected between the waterproof cover and the installation plate.

[0006] Furthermore, a motor core for driving the toothbrush head is installed at the top of the mounting cylinder, and the toothbrush head and the driving end of the motor core are detachably connected.

[0007] Furthermore, the drive assembly includes a rack fixedly mounted on one side of the mounting plate and a drive motor fixedly mounted inside the mounting cylinder; the output end of the drive motor is connected to a reducer, a drive shaft is provided on one side of the reducer, and a gear is fixedly fitted at the end of the drive shaft, the gear meshing with the rack.

[0008] Furthermore, a sealing ring is fixedly fitted on the outer side of the reducer, and the sealing ring is sealed to the inner wall of the mounting cylinder; a retaining seat is connected to the bottom end of the reducer, and the retaining seat is clamped to the bottom end of the mounting cylinder.

[0009] Furthermore, the mounting plate is provided with limit grooves on both the left and right ends of one side, and the mounting cylinder is provided with limit strips on both the left and right ends of one side, with the limit strips being slidably installed in the limit grooves respectively.

[0010] Furthermore, a battery, a disinfection component, and a Hall element are fixedly installed on the control motherboard; when the toothbrush head retracts inward, the disinfection component is positioned corresponding to the toothbrush head; the mounting plate has a through groove near the installation location of the disinfection component, the end of the disinfection component extends from the through groove, and waterproof sealant is filled between the through groove and the end of the disinfection component; the disinfection component is an ultraviolet disinfection lamp; a magnet is fixedly embedded on one side of the mounting cylinder, and when the toothbrush head extends outward, the magnet is positioned corresponding to the Hall element.

[0011] Furthermore, an upper cover and a lower cover are respectively installed at the top and bottom of the handle. The upper cover has a through hole in the center for the toothbrush head to extend out. The lower cover has multiple sets of drainage holes and a charging port. A waterproof cover is connected to the charging port, and a charging connector is fixedly installed inside the charging port and electrically connected to the control board. Two sets of baffles are installed on the bottom side of the upper cover to seal the through hole. A fixing plate is fixedly installed on the top of the mounting plate, and the fixing plate has a through groove corresponding to the through hole. The fixing plate has two sets of connecting holes at the end near the through groove. Each of the baffles has a mounting shaft at one end, and the mounting shafts are rotatably installed in the connecting holes respectively. The fixed plate has a fixed shaft on each side near the through groove, and a connecting shaft is provided on one side of the baffle corresponding to the fixed shaft. A spring is connected between the connecting shaft and the fixed shaft. The baffle is arc-shaped at the end near the mounting shaft, and the arc-shaped surface is provided with toothed grooves. The toothed grooves of the two sets of baffles mesh with each other. The bottom side of the baffle is provided with an inclined surface. When the toothbrush head extends outward, its end drives the baffle to compress the spring by squeezing the inclined surface, thus opening the baffle.

[0012] Furthermore, the outer circumferential surface of the fixed disk is provided with multiple sets of slots, and the bottom side of the upper cover is provided with multiple sets of claws corresponding to the slots. The claws of the upper cover are respectively engaged with the slots of the fixed disk.

[0013] Furthermore, a spring hinge is installed on one side of the bottom of the top cover, and is rotatably connected to the fixed plate through the spring hinge; a latch is provided on the bottom of the top cover on the side away from the spring hinge, a locking groove is provided on one side of the fixed plate that can be locked with the latch, and an unlock button is provided on the bottom side of the fixed plate near the locking groove.

[0014] Furthermore, a hinge is installed on one side of the bottom of the top cover, and is rotatably connected to the fixed plate through the hinge; a magnetic plate one is fixedly embedded on the bottom of the top cover on the side away from the hinge, and a magnetic plate two that can be attracted and connected to the magnetic plate one is fixedly embedded on the top of the fixed plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model, by setting an installation plate and a drive component inside the handle, enables the toothbrush head to move quickly during use, so as to achieve rapid extension and retraction adjustment. This allows for quick storage and protection of the toothbrush head during use and carrying, preventing it from getting dirty or damaged. At the same time, by installing a disinfection component inside the handle, the toothbrush head can be quickly disinfected when it is retracted for storage, so that it can be used again next time.

[0017] 2. By setting a waterproof cover and sealing gasket on one side of the mounting plate, this utility model can ensure that the electrical control components on one side of the mounting plate have good waterproof performance during use, and can ensure stable use for a long time. At the same time, by installing a sealing ring between the reducer and the mounting cylinder, the space where the drive motor is located can be well sealed, and water ingress will not easily occur, thus ensuring that the whole has good waterproof performance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating the completion of toothbrush head recycling in this utility model. Figure 1 .

[0019] Figure 2 This is a schematic diagram illustrating the completion of toothbrush head recycling in this utility model. Figure 2 .

[0020] Figure 3 This is a schematic diagram of the toothbrush head after it has been extended.

[0021] Figure 4 This is a structural disassembly diagram of this utility model.

[0022] Figure 5 This is a disassembly diagram of the components on both sides of the mounting plate of this utility model. Figure 1 .

[0023] Figure 6 This is a disassembly diagram of the components on both sides of the mounting plate of this utility model. Figure 2 .

[0024] Figure 7 This is a schematic diagram of the disassembly of the installation cylinder of this utility model.

[0025] Figure 8 This is a schematic diagram showing the disassembly of the fixing plate and baffle of this utility model.

[0026] Figure 9 This is a schematic diagram of the baffle of this utility model.

[0027] Figure 10 This is a schematic diagram showing the disassembly of the top cover and the fixing plate in Embodiment 2 of this utility model.

[0028] Figure 11 This is a schematic diagram showing the disassembly of the top cover and the fixing plate in Embodiment 3 of this utility model.

[0029] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0030] 1. Handle; 2. Top cover; 3. Bottom cover; 4. Toothbrush head; 5. Mounting plate; 6. Mounting cylinder; 7. Control main board; 8. Battery; 9. Sealing gasket; 10. Waterproof cover; 11. Sterilization component; 12. Hall element; 13. Rack; 14. Magnet; 15. Drive motor; 16. Reducer; 17. Sealing ring; 18. Gear; 19. Card holder; 20. Fixing plate; 21. Baffle; 22. Connecting shaft; 23. Mounting shaft; 24. Spring hinge; 25. Hinge; 26. Magnet plate one; 27. Magnet plate two; 200. Locking tongue; 201. Unlock button. Detailed Implementation

[0031] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0032] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Example 1:

[0035] As attached Figure 1 To be continued Figure 9 As shown, this utility model provides a telescopic electric toothbrush, including a handle 1 and a toothbrush head 4. An installation plate 5 is fixedly installed inside the handle 1. An installation cylinder 6 is slidably connected to one side of the installation plate 5. A drive assembly is provided between the installation cylinder 6 and the installation plate 5. The drive assembly is used to drive the installation cylinder 6 to move up and down inside the handle 1, so as to drive the toothbrush head 4 to extend or retract into the handle 1. A control main board 7 is installed on the other side of the installation plate 5, and a waterproof cover plate 10 is connected to the outer side near the control main board 7. A sealing gasket 9 is connected between the waterproof cover plate 10 and the installation plate 5, which can ensure that the electronic control assembly on the side of the installation plate 5 has good waterproof performance during use, and can ensure stable use for a long time.

[0036] The top of the mounting cylinder 6 is equipped with a motor core for driving the toothbrush head 4, and the toothbrush head 4 is detachably connected to the driving end of the motor core so as to facilitate the periodic disassembly and replacement of the toothbrush head 4.

[0037] The drive assembly includes a rack 13 fixedly mounted on one side of the mounting plate 5 and a drive motor 15 fixedly mounted inside the mounting cylinder 6. The output end of the drive motor 15 is connected to a reducer 16. A drive shaft is provided on one side of the reducer 16, and a gear 18 is fixedly fitted at the end of the drive shaft. The gear 18 meshes with the rack 13 to drive the mounting cylinder 6 to move up and down quickly, thereby realizing the extension and retraction of the toothbrush head 4.

[0038] The reducer 16 is fitted with a sealing ring 17 on its outer side. The sealing ring 17 is sealed to the inner wall of the mounting cylinder 6, which ensures that the space where the drive motor 15 is located has good sealing performance and will not easily allow water to enter, thus ensuring that the whole has good waterproof performance. The reducer 16 is connected to a retainer 19 at its bottom end. The retainer 19 is clamped to the bottom end of the mounting cylinder 6 to ensure the installation stability of the reducer 16.

[0039] The mounting plate 5 has limit grooves on both the left and right sides of one side, and the mounting cylinder 6 has limit strips on both the left and right sides of one side. The limit strips are slidably installed in the limit grooves to ensure that the mounting cylinder 6 has high stability and smoothness when it is moved and adjusted.

[0040] The control motherboard 7 is fixedly equipped with a battery 8, a disinfection component 11, and a Hall element 12. When the toothbrush head 4 retracts inward, the disinfection component 11 is positioned corresponding to the toothbrush head 4. The mounting plate 5 has a through groove near the installation location of the disinfection component 11, with the end of the disinfection component 11 extending from the through groove. Waterproof sealant is filled between the through groove and the end of the disinfection component 11 to ensure a tight seal and prevent water leakage. The disinfection component 11 is an ultraviolet disinfection lamp. A magnet 14 is fixedly embedded on one side of the mounting cylinder 6. When the toothbrush head 4 extends outward, the magnet 14 is positioned corresponding to the Hall element 12 to facilitate rapid detection of the position of the mounting cylinder 6, allowing for quick stopping upon reaching the designated position.

[0041] The handle 1 has an upper cover 2 and a lower cover 3 installed at its upper and lower ends, respectively. The upper cover 2 has a through hole in its center for the toothbrush head 4 to extend out. The lower cover 3 has multiple drainage holes and a charging port. A waterproof cover is connected to the charging port, and a charging connector is fixedly installed inside the charging port and electrically connected to the control motherboard 7. Two baffles 21 are installed on the bottom side of the upper cover 2 to seal the through hole of the upper cover 2, so as to quickly block the light when the disinfection component 11 is disinfecting, so as to ensure high safety during use. A fixing plate 20 is fixedly installed on the top of the mounting plate 5, and the fixing plate 20 has a through groove corresponding to the through hole. The fixing plate 20 has two sets of connecting holes at the end near the through groove. Each of the baffles 21 has a mounting shaft 23 at one end, and the mounting shaft 23 is rotatably installed in the connecting hole. The fixed plate 20 has a fixed shaft on each side near the through groove. Each side of the baffle 21 has a connecting shaft 22 corresponding to the fixed shaft, and a spring (not shown) connects the connecting shaft 22 to the fixed shaft. The baffles 21 are all arc-shaped at the end near the mounting shaft 23, and the arc-shaped surface is provided with tooth grooves. The tooth grooves of the two sets of baffles 21 mesh with each other to ensure that the two sets of baffles 21 can move synchronously and realize synchronous opening and closing. The bottom side of the baffles 21 is provided with an inclined surface. When the toothbrush head 4 extends outward, its end drives the baffle 21 to compress the spring by squeezing the inclined surface, thus opening the baffle 21.

[0042] The outer peripheral surface of the fixed disk 20 is provided with multiple sets of slots, and the bottom side of the upper cover 2 is provided with multiple sets of claws corresponding to the slots. The claws of the upper cover 2 are respectively engaged with the slots of the fixed disk 20 to provide a stable and easy-to-assemble fixing method, which facilitates production and assembly.

[0043] The working principle of this embodiment is as follows: By setting an mounting plate 5 and a drive component inside the handle 1, this utility model can drive the toothbrush head 4 to move quickly during use, so as to achieve rapid extension and retraction adjustment. This allows for quick storage and protection of the toothbrush head 4 during use and carrying, preventing it from becoming dirty or damaged. At the same time, by installing a disinfection component 11 inside the handle 1, the toothbrush head 4 can be quickly disinfected when it is retracted for storage, so that it can be used next time.

[0044] Example 2:

[0045] like Figure 10 As shown, the difference from Embodiment 1 is that: a spring hinge 24 is installed on one side of the bottom of the upper cover 2, and is rotatably connected to the fixed plate 20 through the spring hinge 24; a latch 200 is provided on the bottom of the upper cover 2 on the side away from the spring hinge 24, a locking groove is provided on one side of the fixed plate 20 that can be locked with the latch 200, and an unlock button 201 is provided on the bottom side of the fixed plate 20 near the locking groove.

[0046] In this embodiment, the spring hinge 24 provides assistance in opening the cover, the latch 200 and the lock groove are firmly locked, and the unlock button 201 makes it easy to open the cover with one hand, making it convenient for users to open the top cover 2 for maintenance (such as cleaning the inside or replacing parts), and the operation experience is more convenient.

[0047] Example 3:

[0048] like Figure 11 As shown, the difference from Embodiment 1 is that: a hinge 25 is installed on one side of the bottom of the upper cover 2, and is rotatably connected to the fixed disk 20 through the hinge 25; a magnetic plate 26 is fixedly embedded on the bottom of the upper cover 2 on the side away from the hinge 25, and a magnetic plate 27 that can be attracted and connected to the magnetic plate 26 is fixedly embedded on the top of the fixed disk 20.

[0049] In this embodiment, the top cover 2 is closed by magnetic attraction, making the opening and closing operation extremely simple and quick (without any latches). The structure is also relatively simple, making it convenient for users to open the top cover 2 for maintenance (such as cleaning the interior or replacing parts), resulting in a more convenient operating experience.

[0050] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A telescopic electric toothbrush, comprising a handle (1) and a brush head (4), characterized in that: An installation plate (5) is fixedly installed inside the handle (1). An installation cylinder (6) is slidably connected to one side of the installation plate (5). A drive assembly is provided between the installation cylinder (6) and the installation plate (5). The drive assembly is used to drive the installation cylinder (6) to move up and down inside the handle (1) so as to drive the toothbrush head (4) to extend or retract into the handle (1). A control main board (7) is installed on the other side of the installation plate (5), and a waterproof cover plate (10) is connected to the outside of the control main board (7). A sealing gasket (9) is connected between the waterproof cover plate (10) and the installation plate (5).

2. The telescopic electric toothbrush as described in claim 1, characterized in that: The top of the mounting cylinder (6) is equipped with a motor core for driving the toothbrush head (4), and the toothbrush head (4) and the driving end of the motor core are detachably connected.

3. The telescopic electric toothbrush as described in claim 1, characterized in that: The drive assembly includes a rack (13) fixedly installed on one side of the mounting plate (5) and a drive motor (15) fixedly installed inside the mounting cylinder (6); the output end of the drive motor (15) is connected to a reducer (16), a drive shaft is provided on one side of the reducer (16), and a gear (18) is fixedly fitted on the end of the drive shaft, the gear (18) meshing with the rack (13).

4. The telescopic electric toothbrush as described in claim 3, characterized in that: A sealing ring (17) is fixedly fitted on the outer side of the reducer (16), and the sealing ring (17) is sealed to the inner wall of the mounting cylinder (6); a retainer (19) is connected to the bottom end of the reducer (16), and the retainer (19) is clamped to the bottom end of the mounting cylinder (6).

5. The telescopic electric toothbrush as described in claim 1, characterized in that: The mounting plate (5) has a limit groove on both the left and right sides of one side, and the mounting cylinder (6) has a limit strip on both the left and right sides of one side, and the limit strip is slidably installed in the limit groove.

6. The telescopic electric toothbrush as described in claim 1, characterized in that: The control motherboard (7) is fixedly mounted with a battery (8), a disinfection component (11) and a Hall element (12); after the toothbrush head (4) retracts inward, the disinfection component (11) is set corresponding to the toothbrush head (4); the mounting plate (5) is provided with a through groove near the installation position of the disinfection component (11), the end of the disinfection component (11) extends out from the through groove, and waterproof sealant is filled between the through groove and the end of the disinfection component (11); the disinfection component (11) is an ultraviolet disinfection lamp; a magnet (14) is fixedly embedded on one side of the mounting cylinder (6), and after the toothbrush head (4) extends outward, the magnet (14) is set corresponding to the Hall element (12).

7. The telescopic electric toothbrush as described in claim 1, characterized in that: The handle (1) is equipped with an upper cover (2) and a lower cover (3) at its upper and lower ends, respectively. The upper cover (2) has a through hole in the center for the toothbrush head (4) to extend out. The lower cover (3) has multiple sets of drainage holes and a charging port. A waterproof cover is connected to the charging port. A charging connector is fixedly installed inside the charging port and is electrically connected to the control board (7). Two baffles (21) are installed on the bottom side of the upper cover (2) to seal the through hole of the upper cover (2). A fixing plate (20) is fixedly installed on the top of the mounting plate (5), and the fixing plate (20) has a through groove corresponding to the through hole. The fixing plate (20) has two sets of connecting holes at one end near the through groove. The baffles (21) have Each end is provided with a mounting shaft (23), and the mounting shaft (23) is rotatably installed in the connecting hole respectively; the fixed plate (20) is provided with a fixed shaft on both sides near the through groove, and the side of the baffle (21) is provided with a connecting shaft (22) corresponding to the fixed shaft, and the connecting shaft (22) and the fixed shaft are connected by a spring; the baffle (21) is provided with an arc shape at the end near the mounting shaft (23), and the arc surface is provided with a tooth groove, and the tooth grooves of the two sets of baffles (21) mesh with each other; the bottom side of the baffle (21) is provided with an inclined surface, and when the toothbrush head (4) extends outward, its end drives the baffle (21) to compress the spring by squeezing the inclined surface, thus completing the opening of the baffle (21).

8. The telescopic electric toothbrush as described in claim 7, characterized in that: The outer peripheral surface of the fixed disk (20) is provided with multiple sets of slots, and the bottom side of the upper cover (2) is provided with multiple sets of claws corresponding to the slots. The claws of the upper cover (2) are respectively engaged with the slots of the fixed disk (20).

9. The telescopic electric toothbrush as described in claim 7, characterized in that: A spring hinge (24) is installed on one side of the bottom of the upper cover (2), and is rotatably connected to the fixed plate (20) through the spring hinge (24); a latch (200) is provided on the bottom of the upper cover (2) on the side away from the spring hinge (24), and a locking groove is provided on one side of the fixed plate (20) that can be locked with the latch (200); an unlock button (201) is provided on the bottom side of the fixed plate (20) near the locking groove.

10. The telescopic electric toothbrush as described in claim 7, characterized in that: A hinge (25) is installed on one side of the bottom of the upper cover (2), and is rotatably connected to the fixed disk (20) through the hinge (25); a magnetic plate one (26) is fixedly embedded on the bottom of the upper cover (2) on the side away from the hinge (25), and a magnetic plate two (27) that can be attracted and connected to the magnetic plate one (26) is fixedly embedded on the top of the fixed disk (20).

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