Electric toothbrush with adjustable angular position of brush head stem
By designing an adjustable electric toothbrush for the angle of the brush head stalk, the rotating mechanism and conical angle grip are used to solve the problem that the electric toothbrush is difficult to change the brush angle in a narrow space, achieving a comprehensive brushing and cleaning effect.
Patent Information
- Application Number
- CN202410115515.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-26
- Publication Date
- 2025-07-29
AI Technical Summary
Existing electric toothbrushes are difficult to change the brushing angle of the brush head in a narrow space in the mouth, resulting in some brushing areas being unclear.
An electric toothbrush with adjustable angle position of the brush head stalk is designed. Through a rotating mechanism with a fixed point rotation of 360 degrees or 90 degrees and a conical angle grip handle, the brush head assembly can be synchronously rotated at different angles, matching the brushing angle, orientation or posture, and combining the replaceable soft bristle head and multi-angle fixed point brushing position.
A comprehensive brushing cleaning is achieved, ensuring that all brushing areas are cleaned and improving oral health.
Smart Images
Figure CN120381346A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of toothbrushes, and particularly to an electric toothbrush with an adjustable angular position of the brush head rod. Background Art
[0002] In daily life, as a toothbrush product, an electric toothbrush has the advantages of high brushing efficiency and convenience in use. Currently, it is mainly composed of a brush head and a brush handle, and the brush head is assembled in the brush handle. Therefore, users can only change the brushing angle of the brush head by changing the brushing posture or angular position of the brush handle.
[0003] When a user uses an existing electric toothbrush to brush teeth, brushing areas such as the top of the tooth crown, the inner and outer sides of the tooth crown, the gaps between teeth, and the inner and outer gingival crevices in the oral cavity all need to be cleaned thoroughly by brushing. However, due to the limitation of the narrow space in the oral cavity, it is difficult for users to change the brushing posture or angular position of the brush handle by hand, and thus it is difficult to change the brushing angle, brushing orientation, or brushing posture of the brush head, making it difficult to meet the requirements of all-round brushing angles and resulting in incomplete cleaning of some brushing areas in the oral cavity, such as dirt in the gingival crevices near the inner part of the oral cavity that cannot be cleaned thoroughly. Summary of the Invention
[0004] To solve the above problems, the present invention provides an electric toothbrush with an adjustable angular position of the brush head rod. The brush head assembly can rotate 360 degrees or 90 degrees at a fixed point for users to select a suitable brushing angle to ensure that the brushing area is cleaned thoroughly.
[0005] To achieve the above object, the technical solution provided by the present invention is as follows:
[0006] The present invention provides an electric toothbrush with an adjustable angular position of the brush head rod, comprising a brush head assembly with soft bristles, a brush head rod with a rotatable angular position, and a conical grip handle. The brush head assembly is integrally fixed on one side of the brush head rod. A metal concave shell is provided inside the brush head assembly, and a replaceable soft bristle head is assembled inside the metal concave shell. A hollow soft silicone cover is provided on the soft bristle head. The upper end of the grip handle forms an angle with the grip handle connecting the upper end of the grip handle, and is sleeved with the other side of the brush head rod to form a fitting part. A rotating mechanism capable of rotating the brush head assembly 360 degrees or 90 degrees at a fixed point is provided inside the fitting part. A charging unit, a battery, a circuit board, a switch mechanism, and a motor are provided inside the grip handle. The motor is fixedly provided with a linked first small bevel gear. The first small bevel gear is sleeved with a large bevel gear. The large bevel gear uses a shaft rod to pass through a reserved hole in the middle of the brush head rod into the brush head assembly and is fixedly connected with a second small bevel gear. The second small bevel gear is sleeved with the bevel gear teeth under the soft bristle head to drive the soft bristle head to rotate. The switch mechanism is provided inside the grip handle and is equipped with a soft silicone kit, and a part of the soft silicone kit protrudes from the outer shell of the grip handle for convenient use by the user. In addition, a set for hanging on the wall and a travel set box for convenient travel are provided.
[0007] Further, the bristle arrangement of the soft bristle head is triangular or cross-shaped, so as to facilitate the accumulation of toothpaste and the cleaning of dental calculus. When the soft bristle head rotates 360 degrees, the bristles can reach the tooth gaps, and the fine bristles can extend into the tooth gaps and brush back and forth smoothly. When encountering deep gum gaps, the bristles in the middle part can automatically gather into a pointed shape and naturally brush into the gaps to achieve brushing the tooth gaps and gums without bleeding.
[0008] Further, the switch mechanism is provided with two switches for speed change, namely a slow switch and a fast switch, which are successively in a high and low shape for convenient identification and use. When the user operates the two switches with the same finger, first touch the slow switch. After that, when the soft bristle head reaches the tooth gap, touch the fast switch while moving downwards.
[0009] Further, a water inlet hole is provided on the outer shell of the brush head assembly. When cleaning the toothbrush, the user puts the brush head assembly into the clear water in the tooth cup and rotates the soft bristle head, which can generate centrifugal force to form a low pressure inside it and quickly suck the clear water into the water inlet hole and discharge it from the side of the soft bristle head to quickly clean the brush head assembly.
[0010] Further, the soft silicone cover covers the metal concave shell, and only by unscrewing the soft silicone cover can it be opened, and the replacement is simple and convenient.
[0011] Further, a deflection mechanism is provided at the fitting portion to enable the brush head assembly and the brush head rod to rotate synchronously to form a taper angle.
[0012] Further, the joint between the brush head rod and the hand grip is straightened, and the brush head rod is integrally bent.
[0013] Further, the travel set box is square with rounded corners, and the height of the arc surface on one side above it is reduced, with an inclined opening in the middle for convenient use.
[0014] Further, the set is hung on the wall. When not in use, the hand grip is inserted into the set to achieve a beautiful appearance and convenient use.
[0015] Further, the hand grip is equipped with a distinguishable color code for easy identification to facilitate the differentiation and use by multiple people in the same room.
[0016] Through the technical solution provided by the present invention, the following beneficial effects are achieved:
[0017] The rotation mechanism can drive the brush head assembly and the brush head rod to rotate synchronously by 360 degrees or 90 degrees at a fixed point, so that the brush head assembly forms multi-angle fixed-point brushing positions or brushing angles for the user to select the corresponding fixed-point brushing positions or brushing angles for brushing. Then, through the tapered hand grip, the brushing angle, brushing orientation, or brushing posture of the brush head assembly can be matched in the narrow space in the oral cavity, so that the brush head assembly works at different brushing angles, thereby facilitating the user to brush and clean different brushing areas to ensure that all brushing areas are cleaned, and thus being beneficial to the oral health of the user. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 Shown is a schematic structural diagram of an electric toothbrush with an adjustable angular position of the brush head rod in the first embodiment;
[0019] Figure 2 Shown is Figure 1 an enlarged schematic diagram of area A in
[0020] Figure 3 Shown is Figure 1 an enlarged schematic diagram of area B in
[0021] Figure 4 Shown is a schematic diagram of one of the brush heads in the first embodiment;
[0022] Figure 5 Shown is a schematic diagram of the brushing action of the brush head assembly in the first embodiment;
[0023] Figure 6 Shown is a schematic diagram of brushing with a brushing angle of +180 degrees in the first embodiment;
[0024] Figure 7 Shown is a schematic diagram of brushing teeth at a brushing angle of 0 degrees positive in the embodiment;
[0025] Figure 8 Shown is a schematic diagram of brushing teeth at a brushing angle of 90 degrees to the right in the embodiment;
[0026] Figure 9 Shown is a schematic diagram of brushing teeth at a brushing angle of 90 degrees to the left in the embodiment;
[0027] Figure 10 Shown is a schematic diagram of cleaning the inside of the brush head assembly in the first embodiment;
[0028] Figure 11 Shown is a schematic diagram of another type of brush head in the first embodiment;
[0029] Figure 12 Shown is a schematic diagram of the electric toothbrush placed in the travel set box in the first embodiment;
[0030] Figure 13 Shown is a schematic diagram of the electric toothbrush plugged on the set in the first embodiment;
[0031] Figure 14 Shown is a schematic diagram of the brush head assembly brushing the side of the tooth crown in the first embodiment;
[0032] Figure 15 Shown is a schematic diagram of the brush head assembly brushing the gum crevice in the first embodiment;
[0033] Figure 16 Shown is a schematic diagram of the brush head assembly brushing the top of the tooth crown in the first embodiment;
[0034] Figure 17 Shown is a schematic diagram of the rotation of the brush head assembly in the third embodiment;
[0035] Figure 18 Shown is a schematic diagram of the rotation of the brush head assembly in the fourth embodiment. Detailed implementation manners
[0036] To further illustrate each embodiment, the present invention provides accompanying drawings. These accompanying drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be combined with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0037] Now, the present invention will be further described in combination with the accompanying drawings and specific implementation manners.
[0038] First embodiment
[0039] Refer to Figures 1 to 3 As shown, Embodiment 1 provides an electric toothbrush with an adjustable angular position of the brush head rod (hereinafter simply referred to as the electric toothbrush). The electric toothbrush includes a brush head assembly 1 with a soft bristle head 11, a brush head rod 2 with a rotatable angular position, and a conical handgrip 3. The brush head assembly 1 is integrally fixed on one side of the brush head rod 2. A metal concave shell 12 is provided inside the brush head assembly 1, and a replaceable soft bristle head 11 is assembled inside the metal concave shell 12 to facilitate the user to regularly replace the soft bristle head 11 to ensure the brushing effect. A hollow soft silicone sleeve cover 13 is provided on the soft bristle head 11.
[0040] The upper end of the handgrip 3 forms a certain angle with the handle connecting the upper end of the handgrip 3, and is sleeved with the other side of the brush head rod 2 to form a fitting part 21. A rotating mechanism capable of rotating the brush head assembly 1 360 degrees at a fixed point is provided inside the fitting part 21. A charging unit, a battery 9, a circuit board, a switch mechanism 6, and a motor 5 (the motor 5 is also a small motor) are provided inside the handgrip 3.
[0041] A first small bevel gear 51 is fixedly provided on the motor 5. The first small bevel gear 51 is sleeved with a large bevel gear 41. The large bevel gear 41 passes through a reserved hole in the middle of the brush head rod 2 to the inside of the brush head assembly 1 by means of a shaft rod 4 and is fixedly connected with a second small bevel gear 42. The second small bevel gear 42 is sleeved on the bevel gear teeth under the soft bristle head 11 to drive the soft bristle head 11 to rotate.
[0042] The switch mechanism 6 is provided inside the handgrip 3 and is equipped with a soft silicone kit 61, and a part of the soft silicone kit 61 protrudes from the outer shell of the handgrip 3 for the convenience of the user to use.
[0043] In addition, there is a set 7 for hanging on the wall as shown in Figure 13 and a travel set box 8 for convenient travel as shown in Figure 12 shown.
[0044] By integrally connecting the brush head rod 2 and the brush head assembly 1 to form a brush head mechanism, the brush head mechanism can then rotate 360 degrees at a fixed point around the fitting part 21, so that the brush head assembly 1 or the brush head rod 2 forms a multi-angular fixed-point brushing position or brushing angle (such as the fixed-point brushing position corresponding to the rotation angles of 0 degrees, 90 degrees, 180 degrees, or 270 degrees, etc.).
[0045] The rotating mechanism can drive the brush head mechanism composed of the brush head assembly 1 and the brush head rod 2 to rotate 360 degrees at a fixed point, so that the brush head assembly 1 forms a multi-angular fixed-point brushing position or brushing angle. The fixed-point brushing position or brushing angle at least includes the positive 0 degrees corresponding to the rotation angle of 0 degrees as shown in Figure 7 shown, the right 90 degrees corresponding to the rotation angle of 90 degrees as shown in Figure 8 shown, and the 180 degrees corresponding to the rotation angle of 180 degrees as shown in Figure 6The shown positive 180 degrees and the corresponding 270 degrees of rotation angle are as Figure 9 shown in the left 90 degrees, for the user to select the corresponding fixed brushing position or brushing angle for brushing teeth.
[0046] Furthermore, through the cone-shaped handgrip 3, the brushing angle, brushing orientation or brushing posture of the brush head assembly 1 can be matched in the narrow space within the oral cavity, so that the brush head assembly 1 works at different brushing angles, thereby facilitating the user to brush and clean different brushing areas, ensuring that all brushing areas are cleaned thoroughly, and thus being beneficial to the oral health of the user.
[0047] In another preferred embodiment, as Figure 4 shown, the arrangement of the bristles 111 of the soft brush head 11 is triangular, which is convenient for storing toothpaste and cleaning dental calculus. As Figure 5 and Figures 14 to 16 shown, when the soft brush head 11 rotates 360 degrees, the bristles 111 can reach the tooth gaps, and the fine bristles of the bristles 111 can extend into the tooth gaps and brush back and forth smoothly. Moreover, during the process of brushing back and forth in the tooth gaps, the bristles 111 naturally gather and penetrate into the gum gaps for brushing.
[0048] When encountering deep gum gaps, the bristles 111 in the middle part can automatically gather into a pointed shape and naturally brush into the gaps to achieve brushing and cleaning the tooth gaps and gums without bleeding.
[0049] As Figures 14 to 16 shown, when the user uses the electric toothbrush of this embodiment to brush teeth, the bristles 111 brush and clean the brushing areas such as the top of the tooth crown, the side of the tooth crown, the tooth gaps between adjacent teeth, and the gum gaps, etc., to ensure a comprehensive cleaning without dead corners.
[0050] Specifically, in implementation, the large bevel gear 41 and the second small bevel gear 42 are a coaxial gear set. A first small bevel gear 51 is fixedly arranged on the rotating shaft of the motor 5. The first small bevel gear 51 meshes with the large bevel gear 41, and the second small bevel gear 42 meshes with the bevel gear teeth under the soft brush head 11 to achieve a transmission effect and cooperate with the rotation of the soft brush head 11.
[0051] Of course, in other embodiments, the bristles 111 can also be arranged in a cross shape as Figure 11 shown.
[0052] Further preferably, the switch mechanism 6 is provided with two switches 62 for speed change, namely a slow switch and a fast switch. The bottom of the soft silicone kit 61 abuts against the actuating parts of the two switches 62. The actuating parts of the slow switch and the fast switch are in a shape with one being higher and the other being lower in turn, which is convenient for the user to identify and use.
[0053] When the user operates the two switches 62 with the same finger respectively, first touch the slow switch at the higher point, then move the soft brush head 11 to the interdental space, and while moving downward, touch the fast switch at the lower point. In this way, the operation is simple and convenient.
[0054] In another preferred embodiment, as Figure 10 shown, the housing of the brush head assembly 1 is provided with a water inlet hole 14. When cleaning the electric toothbrush, the user puts the brush head assembly 1 into the clean water in the tooth cup and rotates the soft brush head 11, which can generate centrifugal force to form a low pressure inside so as to quickly suck the clean water into the water inlet hole 14 and discharge it from the side of the soft brush head 11 to quickly clean the brush head assembly 1.
[0055] At the same time, when the soft brush head 11 rotates in the clean water, a certain centrifugal force is also formed, and the dirt remaining on the bristles 111 of the soft brush head 11 is thrown out by the centrifugal force to complete the cleaning of the bristles 111.
[0056] In another preferred embodiment, the soft silicone sleeve cover 13 is covered on the metal concave shell 12, and only by unscrewing the soft silicone sleeve cover 13 can it be opened, and the replacement is simple and convenient.
[0057] In another preferred embodiment, as Figure 12 shown, the travel set box 8 is square with rounded corners, and the arc surface height on one side above it is reduced, with an inclined opening in the middle for convenient use.
[0058] In another preferred embodiment, as Figure 13 shown, the set 7 is hung on the wall. When not in use, the hand grip 3 is inserted into the set 7 to achieve beauty and convenient use.
[0059] In addition, the hand grip 3 is equipped with a distinguishable color mark for easy identification to facilitate the differentiation and use by multiple people in the same room.
[0060] An identification groove for attaching the distinguishable color mark is provided on the outer wall of the hand grip 3. By attaching distinguishable color marks of different colors to the identification grooves of the hand grips 3 of different electric toothbrushes, it is convenient for multiple people in the same room not to use the electric toothbrush wrongly.
[0061] Embodiment 2
[0062] Embodiment 2 provides an electric toothbrush with an adjustable angular position of the brush head rod. The structures of Embodiment 2 and Embodiment 1 are generally the same, and the difference lies in that: a rotating mechanism capable of rotating the brush head assembly by 90 degrees at a fixed point is provided inside the fitting part.
[0063] The rotating mechanism can drive the brush head assembly and the brush head rod to rotate synchronously by 90 degrees at a fixed point, so that the brush head assembly forms multi-angular fixed-point brushing positions or brushing angles for the user to select the corresponding fixed-point brushing positions or tooth brushing angles for brushing teeth.
[0064] Then, through a conical handgrip, the brushing angle, brushing orientation or brushing posture of the brush head assembly can be matched in the narrow space in the oral cavity, so that the brush head assembly works at different brushing angles, thereby facilitating the user to brush and clean different brushing areas, ensuring that all brushing areas are cleaned thoroughly, and thus being beneficial to the oral health of the user.
[0065] Embodiment Three
[0066] Refer to Figure 17 As shown, Embodiment Three provides an electric toothbrush with an adjustable angular position of the brush head rod. The structures of Embodiment Three and Embodiment One are generally the same, except that: a deflection mechanism is provided at the fitting part 21, so that the brush head assembly 1 and the brush head rod 2 rotate synchronously to form a cone angle, that is, the extension direction of the shaft rod in the brush head rod 2 forms a cone angle with the length direction of the handgrip 3, so as to achieve reciprocating fixed-point rotation on the same plane to form fixed-point brushing positions or brushing angles at different angular positions, facilitating the user to brush and clean different brushing areas, ensuring that all brushing areas are cleaned thoroughly, and thus being beneficial to the oral health of the user.
[0067] Embodiment Four
[0068] Refer to Figure 18 As shown, Embodiment Four provides an electric toothbrush with an adjustable angular position of the brush head rod. The structures of Embodiment Four and Embodiment One are generally the same, except that: the joint 22 between the brush head rod 2 and the handgrip 3 is straightened, and the brush head rod 2 is integrally bent, and in this way, fixed-point brushing positions or brushing angles at different angular positions can also be formed.
[0069] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the present invention in terms of form and details without departing from the spirit and scope of the present invention defined by the appended claims, and all such changes are within the protection scope of the present invention.
Claims
1. An electric toothbrush with an adjustable angular position of the brush head rod, comprising a brush head assembly with soft bristles, a brush head rod with a rotatable angular position, and a conical grip handle, characterized in that: The brush head assembly is integrally fixed on one side of the brush head rod. A metal concave shell is provided inside the brush head assembly, and a replaceable soft bristle head is assembled inside the metal concave shell. A hollow soft silicone sleeve cover is provided on the soft bristle head; The upper end of the grip handle forms an angle with the grip handle connecting the upper end of the grip handle, and is sleeved with the other side of the brush head rod to form a fitting part. A rotating mechanism capable of rotating the brush head assembly 360 degrees or 90 degrees at a fixed point is provided inside the fitting part. A charging unit, a battery, a circuit board, a switch mechanism, and a motor are provided inside the grip handle; The motor is fixedly provided with a linked first small bevel gear. The first small bevel gear is sleeved with a large bevel gear. The large bevel gear uses a shaft rod to pass through a reserved hole in the middle of the brush head rod into the brush head assembly and is fixedly connected with a second small bevel gear. The second small bevel gear is sleeved with the bevel gear teeth under the soft bristle head to drive the soft bristle head to rotate; The switch mechanism is provided inside the grip handle and is equipped with a soft silicone kit, and a part of the soft silicone kit protrudes from the outer shell of the grip handle for the convenience of use by the user; There is also a set for hanging on the wall and a travel set box for convenient travel.
2. The electric toothbrush with an adjustable angular position of the brush head rod according to claim 1, characterized in that: The bristle arrangement of the soft bristle head is triangular or cross-shaped to facilitate the accumulation of toothpaste and the cleaning of dental calculus; when the soft bristle head rotates 360 degrees, the bristles can reach the tooth gaps, and the fine bristles of the bristles can extend into the tooth gaps and brush back and forth smoothly; when encountering deep gum gaps, the bristles in the middle part can automatically gather into a pointed shape and naturally brush into the gaps to achieve brushing the tooth gaps and gums without bleeding.
3. The electric toothbrush with an adjustable angular position of the brush head rod according to claim 1, characterized in that: The switch mechanism is provided with two switches for speed change, namely a slow switch and a fast switch, and they are in a high-low shape in sequence for convenient identification and use; when the user operates the two switches with the same finger, first touch the slow switch, and then when the soft bristle head reaches the tooth gap, touch the fast switch while moving down.
4. The electric toothbrush with an adjustable angular position of the brush head rod according to claim 1, characterized in that: The outer shell of the brush head assembly is provided with a water inlet hole. When cleaning the toothbrush, the user puts the brush head assembly into the clear water in the tooth cup and rotates the soft bristle head, which can generate centrifugal force to form a low pressure inside it and quickly suck the clear water into the water inlet hole and discharge it from the side of the soft bristle head to quickly clean the brush head assembly.
5. The electric toothbrush with an adjustable angular position of the brush head rod according to claim 1, characterized in that: The soft silicone sleeve cover covers the metal concave shell, and it can be opened only by unscrewing the soft silicone sleeve cover, and the replacement is simple and convenient.
6. The electric toothbrush with an adjustable angular position of the brush head rod according to claim 1, wherein: A deflection mechanism is provided at the fitting part to enable the brush head assembly and the brush head rod to rotate synchronously to form a conical angle.
7. The electric toothbrush with an adjustable angular position of the brush head rod according to claim 1, characterized in that: Straighten the joint between the brush head rod and the grip handle, and the brush head rod is integrally bent.
8. The electric toothbrush with an adjustable angular position of the brush head rod according to claim 1, characterized in that: The travel set box is square with rounded corners, and the arc height on one side above it is reduced, with an inclined opening in the middle for convenient use.
9. The electric toothbrush with an adjustable angular position of the brush head rod according to claim 1, characterized in that: The set is hung on the wall. When not in use, the grip handle is inserted into the set to achieve beauty and convenient use.
10. The electric toothbrush with an adjustable angular position of the brush head rod according to claim 9, characterized in that: The grip handle is equipped with a distinguishable color mark for easy identification to facilitate the differentiated use by multiple people in the same room.