High amplitude power toothbrush

Abstract

The application discloses a high-amplitude electric toothbrush, relates to the technical field of electric toothbrushes, and has the technical scheme as follows: a casing is arranged, a vibration motor is fixed in the casing, an output shaft of the vibration motor penetrates through the casing, the output shaft of the vibration motor is provided with a toothbrush rod, a toothbrush head is arranged on the toothbrush rod, and the toothbrush rod is a carbon fiber toothbrush rod. The application solves the technical problem that the vibration amplitude of the electric toothbrush is small, and has the advantage of improving the vibration amplitude of the electric toothbrush.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric toothbrushes, and particularly relates to a high-amplitude electric toothbrush. BACKGROUND

[0002] An electric toothbrush is used to produce high-frequency vibration of a brush head through rotation or vibration of a motor core, so that toothpaste is instantaneously decomposed into fine bubbles and deeply enters into tooth gaps for cleaning, and blood circulation of the oral cavity is promoted through vibration of the bristles to have a massage effect on the gum tissue.

[0003] At present, electric toothbrushes are divided into rotary and vibration types, wherein the rotary toothbrush is used to replace manual cleaning of teeth through rotation of a brush head, and the vibration toothbrush is used to decompose toothpaste into fine bubbles through high-frequency vibration of a brush head transmitted by a motor and to deeply enter the fine bubbles into tooth gaps for cleaning.

[0004] The vibration type toothbrush is more complex and higher in price. The vibration type toothbrush has an electrically driven vibration motor inside, which can make the brush head produce high-frequency swing perpendicular to the direction of the handle.

[0005] It is pointed out that the vibration type toothbrush has a small swing amplitude, generally about 5 mm up and down, and the maximum swing amplitude in the prior art is 6 mm, and the tooth cleaning capacity is insufficient, and thus needs to be improved. SUMMARY

[0006] In order to realize the increase of the vibration amplitude of the brush head of the vibration type electric toothbrush, the purpose of the present application is to provide a high-amplitude electric toothbrush.

[0007] The high-amplitude electric toothbrush provided by the present application adopts the following technical scheme:

[0008] The high-amplitude electric toothbrush comprises a casing, a vibration motor fixed in the casing, an output shaft of the vibration motor penetrating the casing, an end portion of the output shaft located outside the casing, a toothbrush rod provided on the output shaft of the vibration motor, a brush head provided on the toothbrush rod, and the toothbrush rod being a carbon fiber toothbrush rod.

[0009] Through the above technical scheme, the motor can make the toothbrush rod vibrate in a rotating or high-frequency vibration mode, and the toothbrush rod transmits the vibration to the brush head, so that the brush head can vibrate to clean the teeth. Since the carbon fiber material has a high elastic modulus, the vibration amplitude of the toothbrush rod is larger during vibration of the vibration motor, so that the vibration sensitivity of the toothbrush rod is increased.

[0010] Optionally, the toothbrush rod and the brush head are connected in a plug-in mode.

[0011] Through the technical scheme, the toothbrush rod and the toothbrush head can be connected or separated through the plug-in mode, so that the toothbrush head can be replaced when the bristles are damaged.

[0012] Optionally, the toothbrush rod extends a plug-in rod at one end close to the toothbrush head, and the toothbrush head is provided with a plug-in hole in interference fit with the plug-in rod at one end close to the toothbrush rod.

[0013] Through the technical scheme, the toothbrush rod and the toothbrush head can be connected or separated through the plug-in mode, so that the toothbrush head can be replaced when the bristles are damaged.

[0014] Optionally, the plug-in rod is conical, and the diameter of the plug-in rod at one end close to the toothbrush head is smaller than the diameter of the plug-in rod at one end away from the toothbrush head.

[0015] Through the technical scheme, the plug-in rod and the plug-in hole are more convenient to align when connected, so that the plug-in rod is inserted, and after insertion, the plug-in rod plays a role in connecting tightly while facilitating the installation of the plug-in rod.

[0016] Optionally, the plug-in rod is provided with a clamping head at one end away from the toothbrush head, the plug-in hole is provided with a clamping groove matched with the clamping head, and the inner wall of the plug-in hole is provided with an elastic layer.

[0017] Through the technical scheme, the clamping head is inserted into the elastic layer, and the elastic layer can extrude the clamping head. Since the elastic layer and the clamping head are arranged, more force is required to separate the plug-in rod from the plug-in hole, thereby improving the connection stability between the toothbrush head and the toothbrush rod. At the same time, the elastic pad seals the gap between the plug-in hole and the plug-in rod, thereby reducing the stains generated during tooth brushing from entering the plug-in hole.

[0018] Optionally, the toothbrush rod is provided with a plug-in hole at one end close to the toothbrush head, and the toothbrush head extends a plug-in rod in interference fit with the plug-in hole at one end close to the toothbrush rod.

[0019] Through the technical scheme, the plug-in hole and the plug-in rod are connected more firmly. When the toothbrush head is made of plastic material, compared with carbon fiber material, the plastic material has good bending resistance, so that the connection between the toothbrush rod and the toothbrush head is more stable and has better bending resistance.

[0020] Optionally, the plug-in rod is conical, and the diameter of the plug-in rod at one end close to the toothbrush rod is greater than the diameter of the plug-in rod at one end away from the toothbrush rod.

[0021] Through the technical scheme, the conical plug-in rod is convenient to plug in, and after being plugged in, the plug-in rod is connected tightly after being plugged into the toothbrush rod due to the increasing diameter of the plug-in rod.

[0022] Optionally, the plug-in rod is provided with a clamping head at the end away from the toothbrush rod, the plug-in hole is provided with a clamping groove matched with the clamping head, and the inner wall of the plug-in hole is provided with an elastic layer.

[0023] Through the technical scheme, the clamping head is inserted into the elastic layer, the elastic layer can extrude the clamping head, and the clamping head is connected more stably after being inserted into the clamping groove.

[0024] Optionally, the output shaft of the vibration motor is integrally formed with the toothbrush rod.

[0025] Through the technical scheme, the output shaft and the toothbrush rod are integrally formed to reduce the production and assembly steps of the toothbrush rod, so that the high-amplitude electric toothbrush reduces the production cost while stably improving the amplitude.

[0026] Optionally, a protective sleeve is sleeved on the outer circumferential surface of the toothbrush rod, and the part of the output shaft protruding out of the shell is embedded in the protective sleeve.

[0027] Through the technical scheme, the cost of the carbon fiber material is high, in order to reduce the use of carbon fiber, the toothbrush rod can be reduced in diameter, the protective sleeve is made of low-cost materials such as plastic, and the protective sleeve can protect the toothbrush rod with reduced diameter, thereby reducing the risk of breakage and damage.

[0028] In summary, the present application has at least one of the following beneficial technical effects:

[0029] 1. The carbon fiber material has a high elastic modulus, so that the toothbrush rod and the motor can produce a larger amplitude after being connected, and have a better cleaning effect.

[0030] 2. Since the carbon fiber has good ductility, it is not convenient to connect the bristles with the carbon fiber material brush head, the plug-in of the toothbrush rod and the toothbrush head allows the toothbrush rod and the toothbrush head to use different materials, so that only the toothbrush rod is selected to be made of carbon fiber material, and the toothbrush head is selected to be made of a plastic toothbrush head in the prior art, which can solve the technical obstacle that carbon fiber is not easy to connect with the bristles. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a structural schematic view of the first embodiment of the present application.

[0032] Figure 2 It is a sectional view of the first embodiment of the present application.

[0033] Figure 3 is an enlarged view of A portion in FIG. 1; Figure 2

[0034] Figure 4 is a sectional view of Embodiment Two of the present application;

[0035] Figure 5 is an enlarged view of B portion in FIG. 2; Figure 4

[0036] Figure 6 is a sectional view of Embodiment Three of the present application;

[0037] Figure 7 is an enlarged view of C portion in FIG. 3; Figure 6

[0038] Figure 8 is a sectional view of Embodiment Four of the present application;

[0039] Figure 9 is an enlarged view of D portion in FIG. 4; Figure 8

[0040] Figure 10 is a sectional view of Embodiment Five of the present application;

[0041] Figure 11 is an enlarged view of E portion in FIG. 5. Figure 10 Reference Signs: 1, casing; 10, motor; 11, output shaft; 2, brush rod; 3, brush head; 4, insertion rod; 41, clamping head; 5, elastic layer; 6, sheath.

[0042] DETAILED DESCRIPTION The present application will be further described below in conjunction with the accompanying drawings.

[0043] Figures 1-11 The present application will be further described below in conjunction with the accompanying drawings.

[0044] The present application discloses a high-amplitude electric toothbrush, which has a larger vibration amplitude of the brush head and better overall use stability compared to conventional electric toothbrushes.

[0045] Embodiment One

[0046] Referring to FIG. 1, Figure 1 The high-amplitude electric toothbrush comprises a casing 1 in a cylindrical shape and a brush rod 2 connected to one end of the casing 1, and a brush head 3 is inserted into the other end of the brush rod 2 away from the casing 1.

[0047] Referring to FIG. 2, Figure 2 and Figure 3 ​​​​​The electric machine 10 is installed in the casing 1, and the electric machine 10 can make the toothbrush rod 2 vibrate in the form of rotation or high-frequency vibration, and the toothbrush rod transmits the vibration to the toothbrush head 3 to make the toothbrush head vibrate to clean the teeth. Specifically, the output shaft 11 of the electric machine 10 is inserted out of one end of the casing 1, so that the end of the output shaft 11 is located outside the casing 1. The toothbrush rod 2 is provided with a connecting hole for inserting the output shaft 11, and the output shaft 11 and the connecting hole are in interference fit to improve the connection stability between the toothbrush rod 2 and the output shaft 11. The casing 1 can also have modules such as a battery, a charging circuit and a control circuit, so that the operation of the electric machine 10 is more stable.

[0048] In the first embodiment, the output shaft of the electric machine is made of steel or carbon fiber material. The output shaft 11 of the electric machine 10 is conical, and the diameter of the end of the output shaft 11 close to the casing 1 is larger than the diameter of the end of the output shaft 11 away from the casing 1. The connecting hole is a conical hole matched with the output shaft 11, but the diameter of the end of the connecting hole close to the casing 1 is slightly smaller than the diameter of the end of the output shaft 11 close to the casing 1.

[0049] It should be noted that the output shaft 11 of the electric machine 10 is usually made of wear-resistant metal material, and the toothbrush rod 2 is a carbon fiber toothbrush rod made of carbon fiber material. The carbon fiber material has high hardness, thereby prolonging the wear speed of the connecting hole on the toothbrush rod 2, thereby prolonging the effective use time of a single toothbrush rod 2. The output shaft 11 made of wear-resistant metal material has better wear resistance than carbon fiber material, thereby prolonging the effective use time of the casing 1.

[0050] Continuing to refer to Figure 2 and Figure 3 The toothbrush rod 2 is easy to be damaged when processing the plurality of holes on the carbon fiber material, and the toothbrush head 3 needs to be cleaned separately according to the teeth in the oral cavity during brushing. Sometimes the teeth will exert a reaction force on the toothbrush head 3, and if the reaction force is directly applied to the carbon fiber material, the service life of the carbon fiber material will be reduced. Therefore, the toothbrush head 3 and the toothbrush rod 2 are connected in a detachable manner by inserting and connecting, and the toothbrush head 3 still uses a plastic material with good bending resistance, instead of the integrally formed toothbrush rod 2 and toothbrush head 3 in the prior art. Moreover, the bristles on the toothbrush head 3 are consumables, and after the bristles are damaged, the toothbrush head 3 only needs to be disassembled and replaced, thereby prolonging the service life of the toothbrush rod.

[0051] Specifically, the end of the toothbrush rod 2 away from the casing 1 extends a plug-in rod 4 for connecting with the toothbrush head 3, the plug-in rod 4 is conical, and the diameter of the end of the plug-in rod 4 close to the toothbrush rod 2 is larger than the diameter of the end of the plug-in rod 4 away from the toothbrush rod 2. Correspondingly, the end of the toothbrush head 3 close to the toothbrush rod 2 is provided with a plug-in hole for interference fit with the plug-in rod 4.

[0052] The plug-in rod 4 is inserted into the plug-in hole, the output shaft 11 of the motor 10 is inserted into the connecting hole, the assembly of the electric toothbrush is completed, the motor 10 is started, and the electric toothbrush can be used. Since the plug-in rod 4 and the plug-in hole are in interference fit, the connection between the plug-in rod 4 and the plug-in hole is more compact, and since the plug-in rod 4 and the output shaft 11 are tapered, the plug-in operation is more convenient.

[0053] The toothbrush rod 2 of the present application is mainly selected from carbon fiber materials with an elastic modulus of 200-700 Gpa. In the first embodiment, a carbon fiber toothbrush rod 2 with an elastic modulus of 480 Gpa is selected. Through a large number of test verifications, the amplitude of the carbon fiber toothbrush rod 2 with an elastic modulus of 480 Gpa can be increased by 30%. Through the selection of the carbon fiber toothbrush rod 2, the toothbrush head 3 can generate greater amplitude during the vibration of the motor 10, and the cleaning effect of the toothbrush can be better.

[0054] Embodiment Two

[0055] The difference between the second embodiment and the first embodiment is that the connection structure between the plug-in rod 4 and the plug-in hole is different.

[0056] Reference Figure 4 and Figure 5 In the second embodiment, the plug-in rod 4 is a cylinder, and the axis direction of the plug-in rod 4 is the same as the axis direction of the toothbrush rod 3. The end of the plug-in rod 4 away from the toothbrush rod 2 is provided with a clamping head 41, and the clamping head 41 is generally spherical. The diameter of the clamping head 41 is slightly larger than the diameter of the plug-in rod 4. Correspondingly, the bottom of the plug-in hole on the toothbrush head 3 is provided with a clamping groove matched with the clamping head 41, and the inner wall of the plug-in hole is covered with an elastic layer 5. The elastic layer 5 and the plug-in rod 4 can be bonded by glue.

[0057] Embodiment Three

[0058] The difference between the third embodiment and the first embodiment is the connection mode between the toothbrush rod 2 and the toothbrush head 3.

[0059] Reference Figure 6 and Figure 7 The plug-in rod 4 is integrally formed on the toothbrush head 3 to replace the plug-in rod 4 on the toothbrush rod 2 in the first embodiment. Correspondingly, the plug-in hole matched with the plug-in rod 4 is located on the toothbrush rod 2. At this time, the material of the plug-in rod 4 is the same as that of the toothbrush head 3, that is, the plug-in rod 4 is a plastic material with good bending resistance. Therefore, the connection between the toothbrush rod 2 and the toothbrush head 3 is more stable and has better bending resistance, and the influence of the tooth reaction on the service life of the carbon fiber toothbrush rod is reduced.

[0060] The plug-in hole is arranged at one end of the toothbrush rod 2 close to the toothbrush head 3, and the plug-in rod 4 is generally conical or cylindrical. The diameter of the end of the plug-in rod 4 close to the toothbrush head 3 is greater than the diameter of the end of the plug-in rod 4 away from the toothbrush head 3. The plug-in rod 4 and the plug-in hole are in interference fit.

[0061] Embodiment four

[0062] The difference between this embodiment four and embodiment three is that the connection structure between the plug-in rod 4 and the plug-in hole is different.

[0063] With reference to Figure 8 and Figure 9 , the plug-in rod 4 is a cylinder, and the axis direction of the plug-in rod 4 is the same as the axis direction of the toothbrush rod 3. The end of the plug-in rod 4 away from the toothbrush rod 2 is provided with a clamping head 41, which is generally spherical. The diameter of the clamping head 41 is slightly greater than the diameter of the plug-in rod 4. Correspondingly, the bottom of the plug-in hole is provided with a clamping groove for clamping the clamping head 41. The inner wall of the plug-in hole is coated with an elastic layer 5, and the elastic layer 5 and the plug-in rod 4 can be connected by glue.

[0064] Embodiment five

[0065] The difference between this embodiment five and embodiment one is that the output shaft 11 of the motor 10 is defined by carbon fiber material, and the output shaft 11 and the plug-in rod 4 are integrally formed.

[0066] With reference to Figure 10 and Figure 11 , in order to reduce the cost of disassembling the rod, the diameter of the plug-in rod 4 in this embodiment five is reduced to reduce the use of carbon fiber material. The diameter of the plug-in rod 4 is substantially the same as the diameter of the output shaft 11 of the motor 10. The outer periphery of the plug-in rod 4 is sleeved with a sheath 6 for protecting the plug-in rod 4, and the sheath 6 is made of plastic. The length of the plug-in rod 4 is less than the length of the sheath 6, and the part of the output shaft 11 of the motor 10 protruding out of the shell 1 needs to be embedded into the sheath 6. The plug-in rod 4 and the sheath 6 are in interference fit, and the output shaft 11 and the sheath 6 are in interference fit.

[0067] The embodiments of the specific embodiment are the preferred embodiments of the present application, and are not limited to the protection scope of the present application, wherein the same parts are indicated by the same reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "in" and "out" refer to the directions towards or away from the geometric center of a specific part. Therefore, any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A high amplitude power toothbrush characterized by: The utility model provides a toothbrush, including casing (1), vibration motor (10) is fixed in casing (1), the output shaft (11) of vibration motor (10) is arranged in casing (1), and the end of output shaft (11) is located outside casing, and the output shaft (11) of vibration motor (10) is provided with toothbrush stem (2), toothbrush stem (2) is provided with toothbrush head (3), and toothbrush stem (2) is carbon fiber toothbrush stem. The toothbrush stem (2) is made of carbon fiber material with an elastic modulus of 200-700 Gpa.

2. The high amplitude electrically powered toothbrush of claim 1 wherein: The toothbrush stem (2) is connected to the toothbrush head (3) through a plug-in connection.

3. The high amplitude electrically powered toothbrush of claim 2 wherein: The toothbrush stem (2) extends a plug-in rod (4) at an end close to the toothbrush head (3), and the toothbrush head (3) is provided with a plug-in hole at an end close to the toothbrush stem (2), which is in interference fit with the plug-in rod (4).

4. The high amplitude electrically powered toothbrush of claim 3 wherein: The plug-in rod (4) is conical, and the diameter of the end of the plug-in rod (4) close to the toothbrush head (3) is smaller than the diameter of the end of the plug-in rod (4) away from the toothbrush head (3).

5. The high amplitude electrically powered toothbrush of claim 3 wherein: The end of the plug-in rod (4) away from the toothbrush head (3) is provided with a clamping head (41), the plug-in hole is provided with a clamping groove matched with the clamping head (41), and the inner wall of the plug-in hole is provided with an elastic layer.

6. The high amplitude electrically powered toothbrush of claim 2 wherein: The toothbrush stem (2) is provided with a plug-in hole at an end close to the toothbrush head (3), and the toothbrush head (3) extends a plug-in rod (4) in interference fit with the plug-in hole at an end close to the toothbrush stem (2).

7. The high amplitude electrically powered toothbrush of claim 6 wherein: The plug-in rod (4) is conical, and the diameter of the end of the plug-in rod (4) close to the toothbrush stem (2) is greater than the diameter of the end of the plug-in rod (4) away from the toothbrush stem (2).

8. The high amplitude electrically powered toothbrush of claim 6 wherein: The end of the plug-in rod (4) away from the toothbrush stem (2) is provided with a clamping head (41), the plug-in hole is provided with a clamping groove matched with the clamping head (41), and the inner wall of the plug-in hole is provided with an elastic layer (5).

9. The high amplitude electrically powered toothbrush of claim 1 wherein: The output shaft (11) of the vibration motor (10) is integrally formed with the toothbrush stem (2).

10. The high amplitude electrically powered toothbrush of claim 9 wherein: The toothbrush stem (2) is provided with a sheath (6) on the outer circumferential surface, and the part of the output shaft (11) protruding out of the casing (1) is embedded in the sheath (6).

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