A toothbrush with cleanable molars

Abstract

This utility model provides a toothbrush for cleaning molars, including a handle, a brush head, and a connecting part connecting the two. The end of the brush head away from the handle is provided with a flat head, and the side of the brush head opposite to the bristles is provided with a transition arc surface connecting to the flat head. The transition arc surface bends from the end of the brush head near the handle to the end of the flat head towards the bristles. Through the above-mentioned arrangement, the end of the brush head away from the handle can be gradually flattened. The flat head is conducive to allowing the flat part of the brush head to enter the deep part of the oral cavity when brushing teeth, between the outer surface of the teeth and the oral cavity wall, thereby cleaning the deep molars. The transition arc surface can also play a guiding role, avoiding excessive friction between the back of the brush head and the oral cavity wall, thus improving comfort.

Description

Technical Field

[0001] This utility model relates to the field of bathroom products technology, and in particular to a toothbrush that can clean molars. Background Technology

[0002] For commonly used toothbrushes, the brush head is designed with bristles that are flush at both ends and the entire brush head is straight. This design is convenient for manufacturing. However, in actual use, because the end of the brush head away from the handle is thicker, it is not easy to reach the back of the mouth, and the innermost molars cannot be effectively brushed. Utility Model Content

[0003] The purpose of this invention is to solve the above-mentioned problems by providing a toothbrush that can clean molars.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a toothbrush for cleaning molars, comprising a handle, a brush head, and a connecting part connecting the two, wherein the end of the brush head away from the handle is provided with a flat head, and the side of the brush head opposite to the bristles is provided with a transition arc surface connecting the flat head; the transition arc surface bends from the end of the brush head near the handle to the end of the flat head towards the bristles.

[0005] Furthermore, the connecting part is inclined toward the side of the brush head where the bristles are located.

[0006] Furthermore, the brush head includes a first body integrally formed with the connecting portion and a silicone head connected to the first body, and the thickness of the silicone head gradually decreases along the extension direction of the transition arc surface.

[0007] Furthermore, the bristles are distributed on the first body and the silicone head, and the ends of the bristles away from the brush head are all on the same virtual plane, and the virtual plane is parallel to the side of the first body on which the bristles are distributed.

[0008] Furthermore, on the side opposite to the bristles, one of the silicone head and the first body is provided with a second groove, and the other is provided with a snap-fit ​​component that engages with the second groove. Along the direction of the silicone head away from the first body, the snap-fit ​​component and the snap-fit ​​groove are mutually restrictive.

[0009] Furthermore, connecting arms are provided on both sides of the first body, and first grooves for connecting arm adaptation are provided on both sides of the silicone head. The distance between the bottom surfaces of the two first grooves is equal to the distance between the two connecting arms approaching each other.

[0010] Furthermore, both connecting arms are provided with plug-in shafts on their sides close to each other, and the bottom surface of the first groove is provided with a plug-in groove adapted to the plug-in shaft.

[0011] Furthermore, the snap-fit ​​component is disposed on the first body, the two plug shafts are coaxially disposed, and the axis of the two plug shafts is located on the side of the snap-fit ​​component closer to the bristles.

[0012] Compared with the prior art, the toothbrush disclosed in this utility model that can clean molars has the following advantages: the brush head can be gradually flattened at the end away from the handle. The flat head is conducive to the flat part of the brush head entering the depth of the oral cavity when brushing teeth, between the outer surface of the teeth and the oral cavity wall, thereby cleaning the deep molars. The transition arc surface can play a guiding role, avoiding excessive friction between the back of the brush head and the oral cavity wall, and improving comfort. Attached Figure Description

[0013] Figure 1 This is a side view of the toothbrush that can clean molars according to the present invention.

[0014] Figure 2 This is a schematic diagram of the back structure of a toothbrush that can clean molars according to the present invention.

[0015] Figure 3 This is a three-dimensional structural diagram of a toothbrush that can clean molars according to the present invention.

[0016] Figure 4 This is a schematic diagram of the structure of a toothbrush with a hidden silicone head for cleaning molars, according to the present invention.

[0017] Figure 5 for Figure 4 The diagram shown is a partially enlarged structural schematic of point A in a toothbrush for cleaning molars according to this utility model.

[0018] Figure 6 This is a schematic diagram of the toothbrush for cleaning molars with the silicone head hidden along the length of the handle according to the present invention.

[0019] Figure 7 This is a side view of the silicone head in a toothbrush for cleaning molars according to the present invention.

[0020] Figure 8 This is a schematic diagram of the silicone head of a toothbrush for cleaning molars, along the length of the handle.

[0021] Figure 9 This is a schematic diagram of the silicone head in a toothbrush that can clean molars according to this utility model.

[0022] In the diagram: 1. Handle; 2. Connecting part; 3. Brush head; 30. First body; 301. Connecting arm; 302. Snap-fit ​​part; 303. First end face; 304. Insert shaft; 31. Brush bristles; 32. Silicone head; 320. Flat head; 321. Transition arc surface; 322. First groove; 323. Insert groove; 324. Second groove. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0024] Please refer to Figure 1-3 This utility model provides a toothbrush for cleaning molars, including a handle 1, a brush head 3 and a connecting part 2 connecting the two. The brush head 3 has a flat head 320 at the end away from the handle 1, and a transition arc surface 321 connecting the flat head 320 is provided on the side of the brush head 3 opposite to the bristles 31. The transition arc surface bends from the end of the brush head 3 near the handle 1 to the end of the flat head 320 towards the bristles 31.

[0025] For details, please refer to Figures 1-3 As a specific implementation, the toothbrush provided in this application has the following structure: it includes a handle 1, a brush head 3, and a connecting part 2. The end of the brush head 3 away from the handle is set flat, forming a side head. The side of the brush head 3 opposite to the bristles 31 is provided with a transition arc surface 321 connecting the side head. With this setting, the end of the brush head 3 away from the handle 1 can be gradually flattened. The flat head is conducive to the flat part of the brush head 3 entering the depth of the oral cavity when brushing teeth, between the outer surface of the teeth and the oral cavity wall, thereby cleaning the deep molars. The transition arc surface 321 can play a guiding role, avoiding excessive friction between the back of the brush head 3 and the oral cavity wall, and improving comfort.

[0026] Furthermore, as a preferred embodiment, refer to Figures 1-3 The connecting part 2 is inclined toward the side of the brush head 3 where the bristles 31 are located.

[0027] Specifically, it is understandable that, since the entire gum line is curved, when the toothbrush is inserted into the mouth to clean the deepest molars, the connecting part 2 will come into contact with the corners of the mouth, and the corners of the mouth need to be moved outwards. At this time, the brushing experience is poor. As a preferred embodiment, the connecting part 2 is set at an angle, so that when cleaning the deep part of the oral cavity, the angled connecting part 2 can adapt to the curve of the gum line, thereby reducing the contact between the corners of the mouth and the connecting part 2 and improving the brushing experience.

[0028] Furthermore, as a specific embodiment, the brush head 3 includes a first body 30 integrally formed with the connecting part 2 and a silicone head 32 connected to the first body 30. Along the extension direction of the transition arc surface 321, the thickness of the silicone head 32 gradually decreases.

[0029] Specifically, in practical applications, the brush head 3 can be integrally set with the brush handle and the connecting part 2. In this case, the brush head 3 is made of hard plastic. Since the gap between the molars and the oral cavity wall is small, the hard plastic brush head 3 is easy to damage the oral cavity sidewall. As another preferred implementation method, the brush head 3 includes a first body 30 and a silicone head 32. The flat part and the transition arc surface 321 are both set on the silicone head 32. With this setting method, the silicone is soft and can effectively reduce the probability of damaging the oral cavity sidewall when brushing teeth. In practical applications, the silicone head 32 can be integrally bonded and fixed with the first body 30, or it can be connected by a detachable connection method. The specific method is not limited.

[0030] Furthermore, as a specific implementation method, refer to Figures 4-9 The bristles 31 are distributed on the first body 30 and the silicone head 32, with the ends of the bristles 31 furthest from the brush head 3 all located on the same virtual plane, and this virtual plane is parallel to the side of the first body 30 where the bristles 31 are located. Specifically, the side of the silicone head 32 where the bristles 31 are located is also inclined towards the bristles 31. When setting the bristles 31, the ends of the bristles 31 are all located on a virtual plane, so that the length of the bristles 31 on the silicone head 32 gradually shortens from the end closest to the first body 30 to the flattened part, thereby facilitating the head of the brush head 3 to enter the deep part of the oral cavity where the gaps are small. This is more conducive to cleaning molars.

[0031] Furthermore, as a specific implementation, regardless of whether the silicone head 32 is bonded to the first body 30 or detachably fixed, in order to improve the connection strength between the two, as a specific implementation, refer to... Figures 5-9 Located on the side opposite to the bristles 31, one of the silicone head 32 and the first body 30 is provided with a second groove 324, and the other is provided with a snap-fit ​​member 302 that engages with the second groove 324. Along the direction of the silicone head 32 away from the first body 30, the snap-fit ​​member 302 and the snap-fit ​​groove are in a limiting engagement.

[0032] Specifically, the first body 30 includes a first end face 303, and the silicone head 32 includes a second end face. In one specific embodiment, on the side of the first body 30 and the silicone head 32 opposite to the bristles 31, the first body 30 is integrally provided with a snap-fit ​​member 302, and the silicone head 32 is provided with a second groove 324. (See reference...) Figure 5 The snap-fit ​​member 302 includes a semi-circular head and a connecting rib that connects the head and the first body 30, while the contour of the second groove 324 is adapted to the snap-fit ​​member 302, see reference. Figure 2 , Figure 3 When the silicone head 32 is installed on the first body 30, the snap-fit ​​member 302 snaps into the second groove 324. At this time, the semi-circular head close to the end face of the first body 30 snaps into and limits the side of the second groove 324, and the first end face 303 and the second end face abut and limit the silicone head 32, thereby limiting the silicone head 32 in the direction away from the first body 30, and improving the reliability of the connection between the silicone head 32 and the first body 30.

[0033] It is understandable that, as another implementation, the second slot 324 can also be provided on the first body 30, and the snap-fit ​​302 can be provided on the silicone head 32, achieving the same effect.

[0034] Furthermore, as a specific implementation, the first body 30 is provided with connecting arms 301 on both sides, and the silicone head 32 is provided with first grooves 322 adapted to the connecting arms 301 on both sides. The distance between the bottom surfaces of the two first grooves 322 is equal to the distance between the two connecting arms 301 approaching each other on their sides.

[0035] For details, please refer to Figures 5-9 The connecting arm 301 is integrally formed with the first body 30, and the snap-fit ​​part 302 is set between the two connecting arms 301. The silicone head 32 has a first groove 322 on both sides that connects to the two connecting arms 301. With this arrangement, the silicone head 32 can be limited by the two connecting arms 301, and the connecting arms 301 and the silicone head 32 overlap, which can make the bonding more secure.

[0036] Furthermore, as a specific implementation, both connecting arms 301 are provided with plug-in shafts 304 on their adjacent sides, and the bottom surface of the first groove 322 is provided with a plug-in groove 323 adapted to the plug-in shaft 304. Specifically, by providing the plug-in shaft 304 and the plug-in groove 323, the reliability of the connection can be further improved.

[0037] Furthermore, as a preferred embodiment, refer to Figure 6 The snap-fit ​​component 302 is disposed on the first body 30, and the two plug-in shafts 304 are coaxially disposed, with the axes of the two plug-in shafts 304 located on the side of the snap-fit ​​component 302 closer to the bristles 31.

[0038] Specifically, the axis of the insertion shaft 304 is located on the side of the snap-fit ​​member 302 near the bristles 31. With this arrangement, when the silicone head 32 is installed on the first body 30, the side of the snap-fit ​​member 302 near the bristles 31 abuts against the bottom surface of the second groove 324, and the insertion shaft 304 is inserted into the insertion groove 323. At this time, the first end face 303 abuts against the second end face. When brushing teeth, the silicone head 32 tends to rotate around the insertion shaft 304 due to the force. At this time, the snap-fit ​​member 302 abuts against the bottom surface of the second groove 324 and the first end face 303 abuts against the second end face to limit the rotation of the silicone head 32, thus ensuring reliable use even when the silicone head 32 is detachably connected to the first body 30.

[0039] Furthermore, as a preferred embodiment, in this application, the bristles are arranged in a long-short bristle arrangement. Specifically, along the length of the handle, the bristles are arranged in a row, with one row of long bristles and one row of short bristles. The hardness of the long bristles is greater than that of the short bristles, and the distance between the ends of the long bristles away from the brush head and the ends of the short bristles away from the brush head is 1mm-3mm, specifically 1mm, 1.5mm, 2mm, 2.5mm, and 3mm. This arrangement, with alternating long and short bristles, can achieve a better cleaning effect.

[0040] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A toothbrush for cleaning molars, comprising a handle (1), a brush head (3), and a connecting part (2) connecting the two, characterized in that, The brush head (3) has a flat head (320) at the end away from the handle (1), and a transition arc surface (321) connecting the flat head (320) is provided on the side of the brush head (3) opposite to the bristles (31); the transition arc surface (321) bends from the end of the brush head (3) near the handle (1) to the end of the flat head (320) towards the bristles (31); The connecting part (2) is inclined toward the side of the brush head (3) where the bristles (31) are located; The brush head (3) includes a first body (30) integrally formed with the connecting part (2) and a silicone head (32) connected to the first body (30). Along the extension direction of the transition arc surface (321), the thickness of the silicone head (32) gradually decreases. The bristles (31) are respectively disposed on the first body (30) and the silicone head (32), and the ends of the bristles (31) away from the brush head (3) are all on the same virtual plane, and the virtual plane is parallel to the side of the first body (30) where the bristles (31) are disposed. Located on the side opposite to the bristles (31), one of the silicone head (32) and the first body (30) is provided with a second groove (324), and the other is provided with a snap-fit ​​member (302) that engages with the second groove (324). Along the direction of the silicone head (32) away from the first body (30), the snap-fit ​​member (302) and the snap-fit ​​groove are in a limiting engagement. The first body (30) is provided with connecting arms (301) on both sides, and the silicone head (32) is provided with first grooves (322) on both sides to fit the connecting arms (301). The distance between the bottom surfaces of the two first grooves (322) is equal to the distance between the two connecting arms (301) on their sides.

2. The toothbrush for cleaning molars according to claim 1, characterized in that, Both connecting arms (301) are provided with plug shafts (304) on their sides close to each other, and the bottom surface of the first groove (322) is provided with a plug groove (323) that is adapted to the plug shaft (304).

3. A toothbrush for cleaning molars according to claim 2, characterized in that, The snap-fit ​​component (302) is disposed on the first body (30), and the two plug shafts (304) are coaxially disposed, and the axis of the two plug shafts (304) is located on the side of the snap-fit ​​component (302) near the bristles (31).

Images