WO2021238620A1

WO2021238620A1 - Toothbrush

Info

Publication number: WO2021238620A1
Application number: PCT/CN2021/092372
Authority: WO
Inventors: 徐振武; 戴晓国; 张常进; 张红涛
Original assignee: 上海携福电器有限公司
Priority date: 2020-05-27
Filing date: 2021-05-08
Publication date: 2021-12-02
Also published as: CN212307135U

Abstract

The present application provides a toothbrush, comprising a toothbrush body (10), a limiting member (20), and a service period indicating ring (30). The toothbrush body (10) has a start mark; the service period indicating ring (30) is sleeved outside the limiting member (20) and can rotate in a forward direction with respect to the limiting member (20), an outer ring wall of the service period indicating ring (30) has a service period scale representing a date, and a plurality of limiting grooves (301) arranged at intervals along a circumferential direction of the service period indicating ring (30) are formed in an inner ring wall of the service period indicating ring (30); the limiting member (20) comprises a fixed body (21) connected to the toothbrush body (10), and at least one elastic arm (22) connected to a side wall of the fixed body (21) and extending outwards; the elastic arm (22) can be switched between a state of being engaged into the corresponding limiting groove (301) and a state of being elastically abutted against the inner ring wall of the service period indicating ring (30) by means of elastic deformation in the rotating process of the service period indicating ring (30). When a user starts to use the toothbrush, the current date on the service period scale can be made to correspond to the start mark by rotating the service period indicating ring (30); when a calculated usage duration reaches three months, the toothbrush can be replaced, thereby preventing the user from forgetting the usage duration of the toothbrush.

Description

toothbrush

This application claims the priority of a Chinese patent application filed at the Chinese Patent Office on May 27, 2020, with an application number of 202020929684.4 and an application name of "Toothbrush", the entire content of which is incorporated into this application by reference.

Technical field

This application belongs to the technical field of oral cavity cleaning, and in particular relates to a toothbrush.

Background technique

The oral cavity and teeth are one of the main gateways for bacteria to invade the human body. After people clean the oral cavity with a toothbrush, they will inevitably not clean the toothbrush. More or less toothpaste and food residues in the oral cavity will be left behind, causing many bacteria to remain hidden. In the gap of the toothbrush, coupled with the long-term placement of dental appliances in a relatively humid bathroom, it also provides good conditions for the growth and reproduction of bacteria. Therefore, toothbrushes need to be replaced regularly to avoid threats to human health.

Medical research shows that toothbrushes should be replaced within about three months at the longest. However, after people start using toothbrushes, they usually do not remember the specific length of use, so regular replacement cannot be guaranteed.

technical problem

The purpose of this application is to provide a toothbrush, which aims to solve the technical problem in the prior art that people usually do not remember the specific use time of the toothbrush.

Technical solutions

This application is realized in this way. A toothbrush includes a brush body, a limiting member and a time limit ring, wherein:

The brush body has an initial mark;

The time limit ring is sleeved outside the limit member and can rotate relative to the limit member, and the outer ring wall of the time limit ring has a time limit scale that indicates the date and can correspond to the start mark, so The time limit ring is provided with a plurality of limit grooves arranged at intervals along the circumferential direction of the time limit ring on its inner ring wall;

The limiting member includes a fixed body and at least one elastic arm. The fixed body is connected to the brush body. The elastic arm is connected to the side wall of the fixed body and extends outward. It is elastically deformed and can switch between being clamped to the limiting groove and elastically abutting against the inner ring wall of the deadline ring through elastic deformation during the rotation of the deadline ring.

In one of the embodiments, the time limit ring can be rotated in a positive direction relative to the limit member, and the elastic arm has a limit state that is clamped in the limit groove and a resilient arm abutting against the time limit ring. In the transitional state of the inner ring wall, the deadline ring can cause the elastic arm to be elastically deformed by forward rotation and switch from the limit state to the transitional state, or the elastic arm can be reset and restored by forward rotation Switch from the excessive state to the limit state, the deadline scale can correspond to the start mark when the elastic arm is in the limit state, and the elastic arm is in the limit state The time limit ring can be restricted from rotating in the opposite direction.

In one of the embodiments, the elastic arm can elastically abut against the bottom of the limiting groove when in the limiting state.

In one of the embodiments, the elastic arm and the deadline ring are on the same plane, the elastic arm has a connection end connected to the fixed body and an extension end spaced apart from the fixed body, and the extension The connection line between the end and the center of the circle corresponding to the deadline ring is arranged at an angle with the connection line between the extension end and the connection end, and the extension end can abut against the bottom of the limiting groove.

In one of the embodiments, the limiting member further includes a protrusion, the protrusion is connected to the side of the elastic arm close to the time limit ring, and can be used when the elastic arm is in the limiting state Conflict with the inner ring wall of the term ring.

In one of the embodiments, the limiting member includes two elastic arms, and the two elastic arms are centrally symmetrically arranged.

In one of the embodiments, the brush body includes a brush head and a brush handle connected to the brush head, and the limiting member is connected to the brush handle.

In one of the embodiments, the brush handle includes a hand-held part and a connecting part connected to the hand-held part, the fixing body is provided with a connecting hole, the cross-section of the connecting hole is non-circular, and the connecting part penetrates It is arranged in the connection hole and fits with the connection hole.

In one of the embodiments, there are a plurality of said deadline rings, and the central axes of the plurality of said deadline rings coincide.

In one of the embodiments, the deadline scale includes 12 scale marks, the limit slot is provided with 12, and one limit slot corresponds to one scale mark.

Beneficial effect

Compared with the prior art, the technical effect of the present application is that the elastic arm can be elastically deformed, and the deadline ring can rotate relative to the limit member, so that the elastic arm can be clamped in the limit groove and elastically abuts against the inner ring of the deadline ring Switching between the walls, the limit slot makes the deadline ring form multiple stuck points during the rotation process to improve the operating feel. When the user starts to use the toothbrush, he can turn the period ring to make the current date on the period scale correspond to the start mark. In this way, the user’s start time can be marked. After a period of use, the user can change the current date Calculate the use time of the toothbrush by subtracting the marked start time from the time. When the calculated use time reaches three months, it can be replaced to prevent the user from forgetting the use time of the toothbrush and to ensure that the user can replace the toothbrush regularly. The elastic arm can be clamped with the limit slot in the limit state, and can only realize one-way rotation, which reduces the possibility of personnel misoperation.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present application more clearly, the following will briefly introduce the drawings that need to be used in the embodiments of the present application or the description of the prior art. Obviously, the drawings described below are only for the present application. For some embodiments, those of ordinary skill in the art can obtain other drawings based on these drawings without creative work.

Figure 1 is a front view of a toothbrush provided by an embodiment of the present application, in which the brush head is not shown;

Figure 2 is a front view of a toothbrush provided by another embodiment of the present application, in which the brush head is not shown;

Figure 3 is a front view of a toothbrush provided by another embodiment of the present application, wherein the brush head is not shown;

Figure 4 is a cross-sectional view of the toothbrush of Figure 1;

Figure 5 is a partial exploded view of the toothbrush of Figure 1;

Fig. 6 is a cross-sectional view of a limiting member provided by an embodiment of the present application;

FIG. 7 is a three-dimensional structural diagram of a time limit ring provided by an embodiment of the present application;

FIG. 8 is a cross-sectional view of the limiting member in FIG. 6 and the time limit ring provided by the embodiment of the present application, in which the elastic arm is in a limiting state;

Fig. 9 is a cross-sectional view of a stopper provided by another embodiment of the present application.

Description of reference signs:

10. Brush body; 101. Mounting groove; 11. Starting mark; 20. Limiting member; 201. Connecting hole; 21. Fixed body; 22. Elastic arm; 221. Connecting end; 222. Extension end; 2221. Guide Surface; 23, protrusion; 30, deadline ring; 301, limit slot; 31, deadline scale.

Embodiments of the present invention

The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary, and are intended to explain the present application, but should not be understood as a limitation to the present application.

In the description of the present application, "a plurality of" means two or more than two, unless otherwise specifically defined.

In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , Or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In order to make the purpose, technical solutions, and advantages of this application clearer, the following further describes this application in detail with reference to the accompanying drawings and embodiments.

Please refer to FIG. 1 and FIG. 5, an embodiment of the present application provides a toothbrush, which includes a brush body 10, a limiting member 20 and a deadline ring 30. Among them, the toothbrush can be an ordinary toothbrush or an electric toothbrush.

1 and 5, the brush body 10 has an initial mark 11, and the initial mark 11 can be a boss structure, a groove, or a painted mark. Specifically, the brush body 10 includes a brush head and a brush handle connected to the brush head. The brush handle can be detachably connected or fixedly connected to the brush head. The brush handle can be provided with a mounting groove 101. The limit member 20 and the deadline ring 30 are both received. Or partly received in the mounting groove 101. The mounting groove 101 may be ringed on the brush handle, or ringed on the brush head, or on the side wall surface of the brush handle, and the opening direction of the mounting groove 101 may be arranged at an angle with the extension direction of the brush handle. In this embodiment, the brush handle includes a hand-held part and a connection part connected to the hand-held part, wherein the brush head can be connected to the connection part, and the connection part and the hand-held part together form a mounting groove 101, and the brush head can also be connected to the hand-held part , The connecting part is arranged at one end of the hand-holding part facing away from the brush head, or two hand-holding parts are arranged, and the connecting part is arranged between the two hand-holding parts. Wherein, the maximum width of the connecting portion perpendicular to the extending direction is smaller than the maximum width of the hand-holding portion perpendicular to the extending direction thereof, so that the connecting portion and the hand-holding portion together form the mounting groove 101.

5 and 6, the limiting member 20 includes a fixed body 21 and at least one elastic arm 22. The fixed body 21 is connected to the brush body 10. Specifically, the fixed body 21 is connected to the brush handle for easy operation. It is an electric toothbrush, which is connected to the handle to reduce the vibration amplitude and increase its service life. In this embodiment, the fixed body 21 has a disk shape and is sleeved on the connecting portion. Preferably, the fixing body 21 is provided with a connecting hole 201, the cross-section of the connecting hole 201 is non-circular, wherein the non-circular shape can be an ellipse, a square or other irregular patterns. In this embodiment, the connecting hole has a cut surface. Round shape. The connecting portion penetrates through the connecting hole 201 and fits with the connecting hole 201 to prevent the fixed body 21 from rotating relative to the connecting portion. The two opposite wall surfaces of the fixed body 21 respectively abut against the two opposite groove walls of the mounting groove 101, and the elastic arm 22 is connected to the circumferential side wall of the fixed body 21 and extends outward, wherein the elastic arm 22 extends outward toward the outside of the mounting groove 101 Extend, the elastic arm 22 and the fixed body 21 are on the same plane. The elastic arm 22 has elasticity and can be elastically deformed. The fixed body 21 and the elastic arm 22 are integrally formed and both are made of plastic materials.

Please refer to Figures 4 and 8, the deadline ring 30 is sleeved on the limit member 20 and can rotate relative to the limit member 20, the rotation can be forward rotation or reverse rotation, wherein, forward rotation and reverse rotation Rotation in the direction refers to clockwise rotation around the central axis of the deadline ring 30 or counterclockwise rotation around its central axis. Please further refer to Figures 1 and 7, the outer ring wall of the deadline ring 30 has a deadline scale 31 indicating the date. The deadline scale 31 can include 12 scale marks. The scale marks can be numbers from 1 to 12, each of which represents For the corresponding month, the above-mentioned number mark may be Arabic numerals, Roman numerals, English letters, Chinese characters, etc., including but not limited to this. . The deadline ring 30 is provided with a plurality of limiting grooves 301 on its inner ring wall, and the plurality of limiting grooves 301 are arranged along the circumference of the deadline ring 30 and arranged at intervals. Correspondingly, 12 limit slots 301 are provided, and one limit slot 301 corresponds to a scale mark.

The elastic arm 22 can switch between being clamped in the limiting groove 301 and elastically abutting against the inner ring wall of the deadline ring 30 through elastic deformation. The deadline ring 30 can rotate relative to the limit member 20, so that the elastic arm 22 can switch between being clamped in the limit groove 301 and elastically abutting against the inner ring wall of the deadline ring 30. The limit groove 301 makes the deadline ring 30 in During the rotation process, a number of stuck points are formed to improve the operating feel.

Referring to FIG. 8, the elastic arm 22 has a limit state of being clamped in the limit groove 301 and an excessive state of elastically abutting on the inner ring wall of the deadline ring 30. The deadline ring 30 can be rotated to cause the elastic arm 22 to be elastically deformed and The limit state is switched to the excessive state, or the elastic arm 22 is reset by rotating and switched from the excessive state to the limit state. The deadline scale 31 can correspond to the start mark 11 when the elastic arm 22 is in the limit state. It can be understood that when the elastic arm 22 is in the limit state, the mark can actually point to a certain number on the deadline scale 31 to indicate the start Starting month. In this way, each limiting groove 301 forms a stuck point during the rotation of the deadline ring 30.

In one embodiment, the deadline ring 30 can rotate in the forward direction, and the elastic arm 22 can restrict the deadline ring 30 to rotate in the reverse direction when the elastic arm 22 is in the restricted state, so as to realize the one-way rotation of the deadline ring 30. Please refer to FIG. 6, the elastic arm 22 has a strip shape, wherein it can be a straight strip shape or a curved strip shape. The elastic arm 22 has a connection end 221 connected to the fixed body 21 and an extension end 222 spaced apart from the fixed body 21. The connection between the extension end 222 and the center of the circle 30 corresponding to the time limit ring 30 and the connection between the extension end 222 and the connection end 221 It is arranged at an included angle, and the extending end 222 can abut against the bottom of the limiting groove 301. It is understandable that the elastic arm 22 extends outward in a spiral shape with respect to the fixed body 21, so that the outer side wall can form a guiding inclined surface. Among them, the elastic arm 22 and the deadline ring 30 are on the same plane to enhance the stability of the abutment between the two. Among them, there may be one or more elastic arms 22. In this embodiment, two elastic arms 22 are provided to enhance the blocking effect. The two elastic arms 22 are preferably arranged symmetrically in the center, so that the force of the deadline ring 30 is uniform and the same positioning effect can be achieved. When the elastic arms 22 are in the limiting state, the two elastic arms 22 are respectively clamped in a limiting groove 301.

Wherein, the elastic arm 22 may not be elastically deformed when it is in the limiting state. At this time, the elastic arm 22 and its extension end 222 are located in the limiting groove 301. At this time, the extension end 222 can be suspended to reduce noise. In this embodiment, the elastic arm 22 is elastically deformed. At this time, the elastic arm 22 can elastically abut against the edge of the limiting groove 301, preferably elastically abutting against the bottom of the limiting groove 301, so as to A sound can be made during the rotation, thereby improving the user's sense of operation.

When the user rotates the deadline ring 30 in the forward direction, the inner ring wall of the deadline ring 30 exerts a force toward the guiding inclined surface, so that the elastic arm 22 undergoes inward elastic deformation, that is, the extension end 222 moves toward the fixed body 21, so that the extension end 222 During the rotation of the deadline ring 30, it moves from the limit groove 301 to elastically abuts against the inner ring wall of the deadline ring 30, and when the deadline ring 30 wants to rotate in the reverse direction, the tip formed by the extension end 222 abuts against the limit. On the groove wall of the groove 301, the deadline ring 30 cannot be rotated.

The deadline ring 30 can rotate positively relative to the limit member 20, and make the elastic arm 22 continuously switch between the limit state and the excessive state during the forward rotation. When the elastic arm 22 is in the limit state, the deadline scale 31 It corresponds to the start mark 11, and at this time, the elastic arm 22 can restrict the time limit ring 30 from rotating in the reverse direction. When the user starts to use the toothbrush, he can turn the deadline ring 30 to make the current date on the deadline scale 31 correspond to the start mark 11. In this way, the user’s start time can be marked. After a period of use, the user can The use time of the toothbrush is calculated by subtracting the marked start time from the current time. When the calculated use time reaches three months, it can be replaced to prevent the user from forgetting the use time of the toothbrush and ensure that the user can replace the toothbrush regularly.

Due to the position limiting effect of the elastic arm 22, the deadline ring 30 can only realize one-way rotation, which reduces the possibility of misoperation by personnel. Preferably, the rotation direction of the deadline ring 30 may be opposite to the arrangement direction of the numbers from small to large. For example, the deadline ring 30 can only be rotated clockwise, and the number marks from 1 to 12 are arranged counterclockwise from small to large. In this way, even if a person turns the deadline ring 30 by mistake, the number pointed to by the mark is actually a smaller number, namely Indicates that the start date has been advanced. When the user’s calculated use time reaches three months, it has actually only been used for two months. The user can replace it in advance, and it will not be caused by personnel misoperations that have not been replaced for more than three months. Condition.

5 and 8, in order to further improve the user's sense of operation, the limiting member 20 further includes a protrusion 23, which is connected to the side of the elastic arm 22 close to the time limit ring 30, and can be positioned at the limit of the elastic arm 22 When in the position state, it conflicts with the inner ring wall of the deadline ring 30. It is understandable that when the elastic arm 22 is elastically reset to the extent that the extended end 222 springs to the bottom of the limiting groove 301, the protrusion 23 also springs on the inner ring wall of the deadline ring 30, thereby increasing the deadline ring 30 to a certain point. The sound of the time, so that the user's sense of operation is stronger.

In another embodiment, the extension direction of the elastic arm 22 may not be limited, and the opposite side of the extension end 222 may have a guide surface 2221 which is connected to the limit groove when the deadline ring 30 is in the limit state. The groove bottom surface of 301 is an acute angle. At this time, the deadline ring 30 can rotate forward so that the guide surface 2221 of the elastic arm 22 abuts against the contact corner between the groove wall of the limit groove 301 and the inner ring wall of the deadline ring 30 At this time, continue to rotate the deadline ring 30 in the forward direction at this time, and the corner can apply pressure to the guide surface 2221, so that the elastic arm 22 is elastically deformed and switched to an excessive state.

In yet another embodiment, please refer to FIG. 9, the extension end 222 of the elastic arm 22 has two guide surfaces 2221, and the two guide surfaces 2221 are respectively provided on the forward side and the reverse side of the elastic arm 22. In the limit state, it is at an acute angle with the bottom surface of the limit groove 301. At this time, no matter whether the deadline ring 30 rotates in the forward direction or in the reverse direction, one of the guide surfaces 2221 of the elastic arm 22 can abut against the limit groove 301. At the connecting corner between the groove wall and the inner ring wall of the deadline ring 30, at this time, continue to rotate the deadline ring 30 in the forward or reverse direction, and this corner can apply pressure to the guide surface 2221 to make the elastic arm 22 elastic Deformed and switched to an excessive state. In this way, the two-way rotation of the deadline ring 30 is realized.

Please refer to FIG. 8. In this embodiment, the central axis of the deadline ring 30 extends in the same direction as the brush handle to better suit the user's usage habits. The deadline ring 30 is adapted to the mounting groove 101, that is, in this embodiment, please refer to FIG. 2, the deadline ring 30 and the limiting member 20 are arranged in the middle of the brush handle. In another embodiment, please refer to FIG. 3, the deadline ring 30 and the limiting member 20 may be arranged on the end of the brush handle away from the brush head.

In order to make the marked date more accurate, multiple deadline rings 30 are provided, and the central axes of the multiple deadline rings 30 coincide. Wherein, a plurality of time limit rings 30 may all be connected with a limit member 20, or a plurality of limit members 20 may be correspondingly provided, and a time limit ring 30 is respectively connected with a limit member 20. One time limit ring 30 can be set with 12 digital signs to indicate 12 months, and the other time limit ring 30 can be set with 30 or 31 digital signs to indicate the date of each month.

The above are only preferred embodiments of the present application, and only specifically describe the technical principles of the present application. These descriptions are only for explaining the principles of the present application and cannot be construed as limiting the protection scope of the present application in any way. Based on the explanation here, all modifications, equivalent substitutions and improvements made within the spirit and principles of this application, and those skilled in the art can associate with other specific implementations of this application without creative work. Should be included in the scope of protection of this application.

Claims

A toothbrush, which is characterized by comprising a brush body, a limiting member and a time limit ring, wherein:

The brush body has an initial mark;

The time limit ring is sleeved outside the limit member and can rotate relative to the limit member, and the outer ring wall of the time limit ring has a time limit scale that indicates the date and can correspond to the start mark, so The time limit ring is provided with a plurality of limit grooves arranged at intervals along the circumferential direction of the time limit ring on its inner ring wall;

The limiting member includes a fixed body and at least one elastic arm. The fixed body is connected to the brush body. The elastic arm is connected to the side wall of the fixed body and extends outward. It is elastically deformed and can switch between being clamped to the limiting groove and elastically abutting against the inner ring wall of the deadline ring through elastic deformation during the rotation of the deadline ring.
The toothbrush according to claim 1, wherein the deadline ring can rotate forward relative to the limit member, and the elastic arm has a limit state that is clamped to the limit groove and an elastic contact In the transitional state of the inner ring wall of the deadline ring, the deadline ring can be rotated in a forward direction to cause the elastic arm to elastically deform and switch from the limit state to the excessive state, or rotate forward to make The elastic arm is reset and switched from the excessive state to the limit state, the deadline scale can correspond to the start mark when the elastic arm is in the limit state, and the elastic arm is in the limit state. When in the limit state, the time limit ring can be restricted from rotating in the reverse direction.
3. The toothbrush according to claim 2, wherein the elastic arm can elastically abut against the bottom of the limiting groove when in the limiting state.
The toothbrush according to claim 2, wherein the elastic arm and the deadline ring are on the same plane, and the elastic arm has a connecting end connected to the fixed body and a spaced apart from the fixed body. The extension end, the line connecting the extension end and the center of the circle corresponding to the time limit ring and the line connecting the extension end and the connecting end are arranged at an angle, and the extension end can be positioned at the limit when the elastic arm is When in the position state, it conflicts with the groove bottom of the limit groove.
The toothbrush according to claim 2, wherein the limiting member further comprises a protrusion, the protrusion is connected to a side of the elastic arm close to the time limit ring, and can be positioned at the elastic arm The limit state conflicts with the inner ring wall of the deadline ring.
The toothbrush according to any one of claims 1 to 5, wherein the limiting member comprises two elastic arms, and the two elastic arms are centrally symmetrically arranged.
The toothbrush according to any one of claims 1 to 5, wherein the brush body comprises a brush head and a brush handle connected to the brush head, and the limiting member is connected to the brush handle.
The toothbrush according to claim 7, wherein the handle includes a hand-held part and a connecting part connected to the hand-held part, the fixing body is provided with a connecting hole, and the connecting hole has a non-circular cross section. , The connecting portion penetrates through the connecting hole and fits with the connecting hole.
The toothbrush according to any one of claims 1 to 5, wherein a plurality of the expiration rings are provided, and the central axes of the plurality of expiration rings coincide.
The toothbrush according to any one of claims 1 to 5, wherein the deadline scale includes 12 scale marks, the limit groove is provided with 12, and one of the limit grooves corresponds to one of the scale marks. .