Toothbrush head and electric toothbrush

Abstract

The utility model relates to a toothbrush head and an electric toothbrush, the toothbrush head comprises a head part and a neck part connected to the lower end of the head part, and further comprises a connecting sleeve, and the connecting sleeve at least fixedly covers the joint of the head part and the neck part. The connecting sleeve is fixedly sleeved at the connecting position of the head and the neck, so that the connecting strength of the head and the neck is improved, and the toothbrush head is effectively prevented from being broken at the connecting position of the head and the neck. The mechanical strength of the toothbrush head is improved, so that the toothbrush head can be arranged to be thinner so as to meet the requirements of vibration frequency and amplitude of the brush head of the electric toothbrush.

Description

Technical Field

[0001] The utility model relates to the field of oral cleaning devices, in particular to a toothbrush head. Background Art

[0002] An electric toothbrush is divided into a toothbrush head and a brush handle. Since an electric toothbrush can achieve vibration of the toothbrush head by electric drive, in order to ensure that the toothbrush head has a higher vibration frequency and a larger amplitude (especially in the cleaning mode, the vibration frequency and amplitude of the toothbrush head are required to be higher), it is generally expected to make the radial size of the toothbrush head as small as possible during design. However, the thinner the toothbrush head, the lower its mechanical strength, and the higher the risk of the toothbrush head breaking. There is no good way in the prior art to design a toothbrush head as thin as possible while ensuring its strength. Utility Model Content

[0003] Therefore, in view of the above problems, the present invention proposes a toothbrush head with optimized structure, and also proposes an electric toothbrush based on the toothbrush head.

[0004] The utility model is implemented by the following technical solutions:

[0005] The utility model provides a toothbrush head, comprising a head and a neck connected to the lower end of the head, and also comprising a connecting sleeve, wherein the connecting sleeve at least fixes and covers the connecting portion between the head and the neck.

[0006] Preferably, the connecting sleeve comprises a first sleeve opening and a second sleeve opening, the first sleeve opening and the second sleeve opening are respectively arranged at two ends of the connecting sleeve, the first sleeve opening outer shell is fixed on the head, and the second sleeve opening outer shell is fixed on the neck.

[0007] Preferably, bristles are provided on the head, the opening direction of the first opening is along the extending direction of the bristles, and the opening of the second opening is downward.

[0008] Among them, preferably, the connecting sleeve is made of thermoplastic soft rubber material, and the connecting sleeve is covered on the head and neck by injection molding.

[0009] Preferably, a first plug-in portion is provided on the head, and a first plug-in mating portion plugged with the first plug-in portion is provided on the connecting sleeve.

[0010] Wherein, preferably, the first plug-in portion is arranged on a side of the head away from the bristles, the first plug-in portion is at least two protrusions arranged at intervals, and the first plug-in matching portion is a socket matching the number and shape of the protrusions.

[0011] Preferably, a second plug-in portion is provided on the neck, and a second plug-in matching portion plugged with the second plug-in portion is provided on the connecting sleeve.

[0012] Preferably, the second plug-in portion is a strip-shaped protrusion, and the second plug-in mating portion is a strip-shaped hole.

[0013] Among them, preferably, the upper end of the neck includes an enclosed section that is sleeved with the second sleeve, and the enclosed section is locally radially contracted so that after the second sleeve is sleeved on the enclosed section, the lower end of the connecting sleeve can be smoothly connected to the outer peripheral wall of the neck.

[0014] Based on the above toothbrush head, the utility model also proposes an electric toothbrush, comprising a brush handle and a brush head, wherein the brush head is the above toothbrush head.

[0015] The utility model has the following beneficial effects: the utility model adopts a connecting sleeve fixedly sleeved at the connection position of the head and the neck, thereby improving the connection strength of the head and the neck, and effectively preventing the toothbrush head from breaking at the connection position of the head and the neck. Thus, the toothbrush head can be set to be more slender to meet the requirements of the vibration frequency and amplitude of the electric toothbrush head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the toothbrush head in Example 1 (angle 1);

[0017] Figure 2 is a three-dimensional schematic diagram of the toothbrush head in Example 1 (angle 2);

[0018] Figure 3 is a structural exploded view of the toothbrush head in Example 1 (angle 1);

[0019] Figure 4 This is a structural exploded view of the toothbrush head in Example 1 (angle 2). DETAILED DESCRIPTION

[0020] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0021] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0022] Embodiment 1:

[0023] See also Figure 1-4 As shown, as a preferred embodiment of the utility model, a toothbrush head is provided, which can be used in an electric toothbrush and connected to the handle of the electric toothbrush as a replaceable component. The toothbrush head includes a head 1 and a neck 2 connected to the lower end of the head 1, and bristles 11 are arranged on the head 1. The toothbrush head also includes a connecting sleeve 3, and the connecting sleeve 3 includes a first sleeve 31 and a second sleeve 32. The first sleeve 31 and the second sleeve 32 are respectively arranged at the two ends of the connecting sleeve 3, and the outer sleeve of the first sleeve 31 is fixed on the head 1, and the outer sleeve of the second sleeve 32 is fixed on the neck 2. In this embodiment, the connecting sleeve 3 is fixedly sleeved at the connecting position of the head 1 and the neck 2, thereby improving the connection strength of the head 1 and the neck 2, and effectively preventing the toothbrush head from breaking at the connecting position of the head 1 and the neck 2, so that the toothbrush head can be set to be more slender to meet the requirements of the vibration frequency and amplitude of the electric toothbrush head. In other embodiments, the connecting sleeve 3 may be in the shape of a vertical ring, and only wrap around and fix the connecting position of the head 1 and the neck 2. However, in this embodiment, the first sleeve 31 and the second sleeve 32 are respectively sleeved and fixed with the head 1 and the neck 2, so that the connection of the connecting sleeve 3 is very stable, and the connecting sleeve 3 can also fully wrap the connecting position of the head 1 and the neck 2. The opening direction of the first sleeve 31 is along the extension direction of the bristles 11, so that the first sleeve 31 wraps around the back side of the head 1, improving the stability of the connection between the first sleeve 31 and the head 1, and the opening of the second sleeve 32 is downward, that is, the opening directions of the first sleeve 31 and the second sleeve 32 are perpendicular, ensuring that the connecting sleeve 3 will not slip off the toothbrush head.

[0024] In this embodiment, the connecting sleeve 3 is made of a thermoplastic soft rubber material, and the connecting sleeve 3 is encapsulated on the head 1 and the neck 2 by an injection molding process. The use of injection molding to form the connecting sleeve 3 can ensure that the connecting sleeve 3 and the toothbrush head are tightly fitted, and ensure that the connection between the head 1 and the neck 2 is tightly embedded in the connecting sleeve 3. Combined with the design of the first sleeve opening 31 and the second sleeve opening 32, the fixed connection between the connecting sleeve 3 and the brush head in this embodiment is very stable, and the connecting sleeve 3 will not be displaced during use.

[0025] In this embodiment, a first plug-in portion 12 is provided on the head 1, and a first plug-in fitting portion 34 plugged with the first plug-in portion 12 is provided on the connecting sleeve 3. Specifically, the first plug-in portion 12 is arranged on the side of the head 1 away from the bristles 11, and the first plug-in portion 12 is at least two protrusions arranged at intervals, and the first plug-in fitting portion 34 is a socket matching the number and shape of the protrusions. Similarly, a second plug-in portion 22 is provided on the neck 2, and a second plug-in fitting portion 33 plugged with the second plug-in portion 22 is provided on the connecting sleeve 3. Specifically, the second plug-in portion 22 is a strip-shaped protrusion, and the second plug-in fitting portion 33 is a strip-shaped hole. Through the above arrangement, the connecting sleeve 3 is also plug-fitted with the head 1 and the neck 2, which facilitates the positioning of the connecting sleeve 3 and further improves the connection stability between the connecting sleeve 3 and the head 1 and the neck 2. In other embodiments, the first plug-in portion 12 may be replaced by a strip-shaped protrusion like the second plug-in portion 22 , and the second plug-in portion 22 may be replaced by at least two protrusion structures like the first plug-in portion 12 .

[0026] In this embodiment, the upper end of the neck 2 includes an enclosed section 21 that is sleeved with the second sleeve 32. The enclosed section 21 is partially radially contracted so that after the second sleeve 32 is sleeved on the enclosed section 21, the lower end of the connecting sleeve 3 can be smoothly connected to the outer peripheral wall of the neck 2, making the brush head more beautiful and avoiding the problem of discomfort in the user's mouth when using the brush due to the protrusion of the connecting sleeve 3 on the outer peripheral wall of the neck 2.

[0027] The toothbrush head structure of this embodiment can be used in not only electric toothbrushes but also ordinary toothbrushes.

[0028] Embodiment 2:

[0029] This embodiment provides an electric toothbrush, including a brush handle and a brush head, wherein the brush head is the toothbrush head in Embodiment 1 and has the same technical effect as the same structure.

[0030] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes made to the present invention in form and detail, without departing from the spirit and scope of the present invention as defined in the appended claims, shall fall within the scope of protection of the present invention.

Claims

1. A toothbrush head, characterized in that: It includes a head and a neck connected to the lower end of the head, and also includes a connecting sleeve, the connecting sleeve at least fixedly covers the connection between the head and the neck, the head is provided with a first plug-in portion, and the connecting sleeve is provided with a first plug-in matching portion plugged with the first plug-in portion.

2. The toothbrush head according to claim 1, characterized in that: The connecting sleeve comprises a first sleeve opening and a second sleeve opening, wherein the first sleeve opening and the second sleeve opening are respectively arranged at two ends of the connecting sleeve, the first sleeve opening outer shell is fixed on the head, and the second sleeve opening outer shell is fixed on the neck.

3. The toothbrush head according to claim 2, characterized in that: The head is provided with bristles, the opening direction of the first opening is along the extending direction of the bristles, and the opening of the second opening is downward.

4. The toothbrush head according to claim 1, characterized in that: The connecting sleeve is made of a thermoplastic soft rubber material, and the connecting sleeve is encapsulated on the head and neck by an injection molding process.

5. The toothbrush head according to claim 1, characterized in that: The head is provided with bristles, the first plug-in portion is arranged on a side of the head away from the bristles, the first plug-in portion is at least two convex points arranged at intervals, and the first plug-in matching portion is a socket matching the number and shape of the convex points.

6. The toothbrush head according to claim 1, characterized in that: The neck is provided with a second plug-in portion, and the connecting sleeve is provided with a second plug-in matching portion plugged with the second plug-in portion.

7. The toothbrush head according to claim 6, characterized in that: The second plug-in portion is a strip-shaped protrusion, and the second plug-in mating portion is a strip-shaped hole.

8. The toothbrush head according to claim 2, characterized in that: The upper end of the neck includes an enclosed section that is sleeved with the second sleeve, and the enclosed section is partially radially contracted so that after the second sleeve is sleeved on the enclosed section, the lower end of the connecting sleeve can be smoothly connected to the outer peripheral wall of the neck.

9. An electric toothbrush, comprising a brush handle and a brush head, characterized in that: The brush head is a toothbrush head as described in any one of claims 1-8.

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