An electric toothbrush that is easy to hold

Abstract

The utility model discloses an electric toothbrush that is easy to grasp, comprising a brush head (100) and a gripping portion (200) detachably connected to the brush head (100), wherein the outer wall surface of the gripping portion (200) is uniformly provided with a plurality of arcuate grooves (201) along the axial direction, and the outer wall surface of the arcuate groove (201) is provided with a plurality of protrusions (202), wherein the arcuate groove (201) has an arcuate angle of α, 150 degrees ≤ α ≤ 165 degrees. The utility model has the beneficial effect that a plurality of arcuate grooves are provided on the outer wall surface of the gripping portion of the electric toothbrush and a plurality of protrusions are provided on the outer wall surface of the arcuate groove, and since the arcuate groove is similar to the arcuate angle of the user's finger, the user can drop his finger into the arcuate groove when using the electric toothbrush, which not only makes the user feel more comfortable, but also increases the friction between the finger and the electric toothbrush, making it easier to grasp and not easy to make the electric toothbrush slip.

Description

Technical Field

[0001] The utility model relates to the technical field of personal care appliances, in particular to an electric toothbrush which is easy to grasp. Background Art

[0002] As people pay more and more attention to oral hygiene, electric toothbrushes are becoming more and more popular among consumers due to their excellent cleaning ability and easy operation.

[0003] In the prior art, an electric toothbrush includes a brush head, a brush handle, a motor and a battery, wherein the brush handle is usually made of engineering plastic (PP / ABS), which makes the handle body of the brush relatively smooth and very inconvenient to grip, such as Chinese Utility Model Publication No. CN204744475U, Publication No. CN211790969U, etc.

[0004] In addition, the brush head and the drive shaft of the motor are usually connected with an interference fit to facilitate the replacement of the brush head. However, when the brush head is in a high-speed vibration state, axial relative displacement is likely to occur between the brush head and the drive shaft, which may cause damage to the teeth and pose a certain safety hazard.

[0005] Therefore, the prior art needs to be improved and enhanced. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an electric toothbrush that is easy to grip, aiming to solve the problem of the inconvenience of gripping the electric toothbrush.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] An electric toothbrush that is easy to grasp comprises a brush head and a gripping portion detachably connected to the brush head, wherein the outer wall surface of the gripping portion is uniformly provided with a plurality of arcuate grooves along the axial direction, and the outer wall surface of the arcuate groove is provided with a plurality of protrusions, wherein the arcuate groove has an arc angle of α, 5 degrees ≤ α ≤ 10 degrees.

[0009] As a further solution of the utility model, the protrusion is a semicircular protrusion.

[0010] As a further solution of the present invention, the outer wall surface of the gripping portion is further provided with at least one groove along the axial direction.

[0011] As a further solution of the utility model, the groove is a V-shaped groove.

[0012] As a further solution of the utility model, the holding part includes a brush handle and a motor arranged in the brush handle, a straight rod body is provided on the transmission shaft of the motor, a rotating slot is provided on the brush head, and the straight rod body of the motor is rotated and inserted into the rotating slot to realize the detachable connection between the holding part and the brush head.

[0013] As a further solution of the utility model, the rotating slot includes a slot section and a slot section connected to the slot section.

[0014] As a further solution of the utility model, the upper and lower wall surfaces of the slot section near the bottom thereof are provided with two arc-shaped protrusions facing each other.

[0015] As a further solution of the utility model, the parts of the straight rod body located on both sides of the transmission shaft of the motor are of different lengths.

[0016] Beneficial effects of the utility model:

[0017] 1. A plurality of arc-shaped grooves are arranged on the outer wall surface of the grip portion of the electric toothbrush, and a plurality of protrusions are arranged on the outer wall surface of the arc-shaped grooves. Since the arc-shaped grooves are similar to the curvature of the user's fingers, the user can put his fingers into the arc-shaped grooves when using the electric toothbrush, which not only makes the user feel more comfortable, but also increases the friction between the fingers and the electric toothbrush, making it easier to grip and less likely to cause the electric toothbrush to slip;

[0018] 2. A straight rod body is arranged on the electric transmission shaft and a rotating slot is arranged on the brush head, so that the gripping part can be rotated and inserted into the rotating slot of the brush head through the straight rod body, thereby realizing a stable connection between the gripping part and the brush head. Even when the brush head is in a high-speed vibration state, it is not easy to generate relative axial displacement between the brush head and the transmission shaft, which will not cause damage to the teeth and avoid potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attached Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0020] Attached Figure 2 A side view of an embodiment of the utility model;

[0021] Attached Figure 3 This is a schematic diagram of the structure of the gripping portion of an embodiment of the utility model;

[0022] Attached Figure 4 This is a bottom view of the brush head of the utility model embodiment;

[0023] Attached Figure 5 It is a cross-sectional view of a brush head according to an embodiment of the present utility model.

[0024] The numbers in the figure are:

[0025] 100-brush head, 200-grip;

[0026] 201-arc groove, 202-protrusion, 203-groove, 204-brush handle, 205-transmission shaft;

[0027] 101-rotating card slot;

[0028] 1011- slot section, 1012- card slot section, 1013- arc-shaped protrusion;

[0029] 2051-straight rod body, 2052-first rod body, 2053-second rod body. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0031] To facilitate understanding of this embodiment, firstly, an electric toothbrush that is easy to grasp disclosed in an embodiment of the utility model is introduced in detail.

[0032] Example: Figure 1 and Figure 2 As shown, the present application is an electric toothbrush that is easy to grasp, including a brush head 100 and a gripping portion 200 detachably connected to the brush head 100, the outer wall surface of the gripping portion 200 is evenly distributed with a plurality of arcuate grooves 201 along the axial direction, and the arcuate grooves 201 are usually arranged on the side away from the user when the user holds the toothbrush, and the outer wall surface of the arcuate groove 201 is provided with a plurality of protrusions 202, wherein the curvature of the arcuate groove 201 is α, 5 degrees ≤ α ≤ 10 degrees.

[0033] Specifically, the brush head 100 includes a brush head body and bristles arranged at the end of the brush head body away from the holding part 200. The holding part 200 includes a brush handle 204, a motor (not shown in the figure) arranged in the brush handle 204, and a rechargeable battery. A power button is arranged on the outer wall surface of the brush handle 204 near the brush head 100, and a charging interface is also arranged at the end of the brush handle 204 away from the brush head 100.

[0034] When a user uses an electric toothbrush, the thumb is usually used to turn on or off the power button of the electric toothbrush and press the end of the brush head 100 close to the grip 200 or the end of the grip 200 close to the brush head 100 during operation. The other four fingers are usually used to hold the grip 200 of the electric toothbrush. Therefore, the arc groove 201 on the grip 200 can be at least one, preferably four, to maximize the friction between the user's fingers and the electric toothbrush. The arc of the arc groove 201 is set between 150 degrees and 165 degrees, which can meet the use requirements of different people with different arcs of fingers. While ensuring the friction between the fingers and the electric toothbrush, the protrusion 202 can be set as a semicircular protrusion to further improve the comfort of the finger feel. Of course, since the size of these protrusions 202 is small, these protrusions 202 can also be set to other shapes such as triangular protrusions, diamond protrusions, etc., which can also ensure the friction between the fingers and the electric toothbrush and the comfort of the finger feel.

[0035] Through the above structural design, since the arc-shaped groove is similar to the curvature of the user's finger, the user can drop the finger into the arc-shaped groove when using the electric toothbrush, which not only makes the user feel more comfortable, but also increases the friction between the finger and the electric toothbrush, making it easier to grip and less likely to cause the electric toothbrush to slip.

[0036] like Figure 2 As shown, the outer wall surface of the gripping portion 200 is further provided with a groove 203 along the axial direction. The groove 203 is arranged on the side close to the finger when the user holds the electric toothbrush, so as to further increase the friction between the finger and the electric toothbrush.

[0037] Specifically, the groove is set to a V-shaped groove. Of course, the number and shape of the grooves can be changed accordingly according to different usage requirements, such as three, four, etc., such as setting the groove to a U-shape, a semicircle, etc.

[0038] like Figure 3-5 As shown, a straight rod body 2051 is provided on the transmission shaft of the motor, and a rotation slot 101 is provided on the brush head 100. The straight rod body 2051 of the motor is rotated and snapped into the rotation slot 101 to realize the detachable connection between the grip 200 and the brush head 100.

[0039] Specifically, the parts of the straight rod body 2051 located on both sides of the transmission shaft of the motor are respectively the first rod body 2052 and the second rod body 2053 , and the rotating slot 101 includes a slot segment 1011 and a slot segment 1012 connected to the slot segment 1011 .

[0040] During assembly, the holding portion is first inserted into the bottom of the slot section 1011 through the straight rod body 2051, and then rotated to be clamped into the slot section 1012 of the rotating slot 101, thereby achieving a stable connection between the holding portion 200 and the brush head 100. Even when the brush head 100 is in a high-speed vibration state, it is not easy to produce axial relative displacement between the brush head 100 and the transmission shaft, which will not cause damage to the teeth and avoid safety hazards.

[0041] like Figure 3 As shown, the upper and lower wall surfaces of the slot section 1012 near the bottom thereof are relatively provided with two arc-shaped protrusions 1013. When the straight rod body 2051 rotates to the bottom near the slot section 1012, it enters the bottom of the slot section 1012 after overcoming the resistance of the two arc-shaped protrusions 1013 to the straight rod body 2051, thereby forming a restriction on the straight rod body 2051 by the two arc-shaped protrusions 1013, preventing it from radial displacement during operation, and ensuring the stability of the brush head and the grip.

[0042] like Figure 3 and Figure 4 As shown, the portions of the straight rod body 2051 located on both sides of the transmission shaft of the motor are of different lengths.

[0043] Specifically, the parts of the first rod 2051 located on both sides of the transmission shaft of the motor are respectively the first rod 2052 and the second rod 2053, wherein the length of the first rod 2052 is greater than the length of the second rod 2053, which limits the insertion angle of the straight rod and makes it difficult to install the brush head incorrectly, thereby improving efficiency.

[0044] In summary, the present invention solves the deficiencies in the prior art through the above-mentioned structural design, and has the characteristics of reasonable structure, easy grip, high safety, etc.

[0045] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the electric toothbrush described above can refer to the corresponding process in the prior art and will not be repeated here.

[0046] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0048] Finally, it should be noted that the above embodiments are only specific implementation methods of the utility model, which are used to illustrate the technical solution of the utility model, rather than to limit it. The protection scope of the utility model is not limited thereto. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art should understand that any technician familiar with the technical field can still modify the technical solution recorded in the above embodiments within the technical scope disclosed by the utility model, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the utility model, and should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. An electric toothbrush that is easy to hold, comprising a brush head (100) and a gripping portion (200) detachably connected to the brush head (100), characterized in that: The outer wall surface of the gripping portion (200) is uniformly provided with a plurality of arc-shaped grooves (201) along the axial direction, and the outer wall surface of the arc-shaped groove (201) is provided with a plurality of protrusions (202), wherein the arc angle of the arc-shaped groove (201) is α, 5 degrees ≤ α ≤ 10 degrees.

2. The easy-to-grip electric toothbrush according to claim 1, characterized in that: The protrusion (202) is a semicircular protrusion.

3. The easy-to-grip electric toothbrush according to claim 1, characterized in that: The outer wall surface of the gripping portion (200) is also provided with at least one groove (203) along the axial direction.

4. The easy-to-grip electric toothbrush according to claim 3, characterized in that: The groove (203) is a V-shaped groove.

5. The easy-to-grip electric toothbrush according to claim 1 or 3, characterized in that: The holding portion (200) comprises a brush handle (204) and a motor arranged in the brush handle (204); a straight rod body (2051) is arranged on the transmission shaft (205) of the motor; a rotating slot (101) is provided on the brush head (100); the straight rod body (2051) of the motor is rotated and inserted into the rotating slot (101) to realize a detachable connection between the holding portion (200) and the brush head (100).

6. The easy-to-grip electric toothbrush according to claim 5, characterized in that: The rotating card slot (101) comprises a slot section (1011) and a card slot section (1012) connected to the slot section (1011).

7. The easy-to-grip electric toothbrush according to claim 6, characterized in that: The upper and lower wall surfaces of the slot section (1012) near the bottom thereof are provided with two arc-shaped protrusions (1013) facing each other.

8. The easy-to-grip electric toothbrush according to claim 5, characterized in that: The parts of the straight rod body (2051) located on both sides of the transmission shaft of the motor are of different lengths.

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