Toothbrushes and mouthwashes
The rotating brush head toothbrush with umbrella-shaped bristles and multiple outlets addresses the inefficiencies of conventional toothbrushes by efficiently cleaning around orthodontic appliances, enhancing user experience and cleaning effectiveness.
Patent Information
- Application Number
- JP2025002306U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Priority Date
- 2025-02-20
- Filing Date
- 2025-07-10
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2035-07-10
AI Technical Summary
Conventional toothbrushes struggle to efficiently clean food residue around orthodontic appliances due to the need to change grip angles, and existing orthodontic toothbrushes with grooved bristles fail to effectively clean gaps between brackets and archwires.
A toothbrush design featuring a rotating brush head with umbrella-shaped bristles, driven by a water flow through a nozzle and rotating member, which rotates to cover a larger area and includes multiple water outlets for enhanced cleaning, especially around orthodontic appliances.
The rotating brush head with umbrella-shaped bristles and multiple outlets efficiently cleans food residue from teeth and orthodontic appliances without requiring angle changes, improving user experience and cleaning efficiency.
Smart Images

Figure 0003252758000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention belongs to the technical field of daily necessities, and specifically relates to toothbrushes and mouthwashes. [Background technology]
[0002] Toothbrushes are a daily necessity and are widely used in the technical field of household goods. However, most commercially available toothbrushes are combined with a water dispenser to improve comfort. However, because orthodontic appliances are attached to the teeth during orthodontic treatment, food residue remains around the orthodontic appliance, between the appliance and the gums, and between the archwire and the tooth surface. When brushing teeth, with a conventional toothbrush, the user must change the grip angle depending on the shape of the tooth surface and the orthodontic appliance to remove the residue, resulting in a poor user experience and making it difficult to efficiently clean the oral cavity. To solve the above problems with conventional toothbrushes, brushing devices such as orthodontic toothbrushes with grooves and orthodontic toothbrushes with oral irrigators are used. However, orthodontic toothbrushes with grooved bristles are designed with low bristles in the center and high bristles at both ends, which makes it difficult to clean the gap between the brackets and the tooth surface and the tooth surface blocked by the archwire, avoiding the wings of the brackets and the backside of the archwire.
[0003] Therefore, providing a toothbrush that cleans teeth efficiently is a technical problem that must be solved as soon as possible in this field. Summary of the Invention [Problem to be solved by the invention]
[0004] In response to the deficiencies existing in the prior art, the present invention aims to provide a toothbrush and oral irrigator that can efficiently clean food residue. [Means for solving the problem]
[0005] The above technical object of the present invention is achieved by the following technical solution.
[0006] In a first aspect, an embodiment of the present application provides a toothbrush comprising a brush rod, a nozzle, and brush bristles, the brush rod having a water flow path in communication with a water supply end, the nozzle connected to an end of the brush rod remote from the water supply end, the nozzle having an interior in communication with the water flow path and a rotating member installed within the nozzle, the brush head having one end passing through the nozzle and connected to the rotating member and the other end provided with a plurality of brush bristles arranged in an umbrella shape, and water flowing from the water supply end into the brush rod flows through the water flow path to the nozzle, rotating the rotating member and thereby rotating the brush head.
[0007] Furthermore, the ends of the brush bristles that are remote from the nozzle extend in a direction away from the central axis of the brush head.
[0008] Furthermore, a water outlet is provided on the side of the nozzle close to the brush head portion, and the water outlet is connected to the water flow path and is provided corresponding to the brush head portion, so that the water flow inside the nozzle is ejected from the water outlet and sprayed along the brush bristles.
[0009] Furthermore, the water flow path has a water guide hole, and one water outlet is provided, and the water outlet and the water guide hole of the water flow path are provided at a distance from each other.
[0010] Furthermore, a plurality of water outlets are provided, and the plurality of water outlets are concentrated on the surface of the nozzle and are positioned within the projected area of the brush bristles.
[0011] Furthermore, a storage chamber and a water guide groove connected to the water outlet are formed within the nozzle, the water guide groove is located on the side of the storage chamber, a rotating member is installed within the storage chamber, the water guide groove is connected to the storage chamber and the water flow path, and the water flow flowing out from the water flow path flows along the water guide groove into the storage chamber, rotates the rotating member, and then flows out from the water outlet.
[0012] Furthermore, the central axis of the water flow path and the axis about which the rotating member rotates around the first axis are perpendicular to each other.
[0013] Furthermore, the nozzle is provided with a connection hole that communicates with the storage chamber, and one end of the brush head portion passes through the connection hole and is connected to the rotating member.
[0014] Furthermore, a fixing hole is provided in the rotating member, and a connecting portion is provided on the end of the brush head portion adjacent to the rotating member, and the connecting portion is engaged in the fixing hole, thereby removably connecting the brush head portion to the rotating member.
[0015] In a second aspect, an embodiment of the present application further provides an oral irrigator, which includes a toothbrush according to the above embodiment and a water supply end, the water supply end communicating with a water flow path in the brush rod portion to supply water to the toothbrush. [Effects of the Invention]
[0016] The embodiments of the present invention have the following beneficial effects:
[0017] The toothbrush according to the embodiment of the present application is provided with a brush head having umbrella-shaped bristles, which increases the area that the bristles can cover on the teeth. When used in conjunction with the water flow from the spout to rinse the teeth, food residue can be efficiently removed from teeth, orthodontic appliances, etc., improving the user experience.
[0018] In order to more clearly describe the technical solutions in the embodiments of the present application, the drawings used in the embodiments of the present application are briefly described below. [Brief explanation of the drawings]
[0019] [Figure 1] 1 is a cross-sectional view of a toothbrush according to an embodiment of the present application. [Figure 2] 1 is a schematic diagram illustrating a toothbrush according to an embodiment of the present application. [Figure 3] 1 is a schematic diagram showing the internal structure of a nozzle of a toothbrush according to an embodiment of the present application. [Figure 4]1 is a schematic diagram showing a state in which a nozzle and a brush head of a toothbrush according to an embodiment of the present application are connected. [Figure 5] 1 is a schematic diagram showing a state in which a rotating member and a brush head of a toothbrush according to an embodiment of the present application are connected to each other; DETAILED DESCRIPTION OF THE INVENTION
[0020] In the description of this application, directions or positional relationships expressed by terms such as "inside" and "outside" are based on the drawings or are the normal arrangement directions or positional relationships of the products related to this application, and are intended to simply and concisely explain this application, and do not express or imply that the relevant elements or components necessarily have a specific orientation, or are configured or operated in a specific direction, and therefore do not limit this application. In addition, terms such as "first" and "second" are merely used for distinguishing and describing purposes, and do not express or imply relative importance.
[0021] The present invention aims to provide a toothbrush and oral irrigator that can solve the problem in the prior art of not being able to thoroughly clean food residue while wearing orthodontic braces.
[0022] Hereinafter, the technical solutions in the embodiments of the present application will be described with reference to the drawings in the embodiments of the present application.
[0023] As shown in Figure 1, an embodiment of the present application provides a toothbrush. The toothbrush includes a brush rod portion 1, a nozzle 2, and a brush head portion 3.
[0024] A water flow path 12 communicating with the water supply end is provided within the brush rod portion 1.
[0025] The nozzle 2 is connected to the end of the brush rod portion 1 that is remote from the water supply end, the inside of the nozzle 2 communicates with the water flow path 12, and a rotating member 21 is installed inside the nozzle 2.
[0026] The brush head portion 3 has one end which penetrates the nozzle 2 and is connected to the rotary member 21, and the other end which is provided with a plurality of brush bristles 31, which are distributed in an umbrella shape.
[0027] The water flowing into the brush rod portion 1 from the water supply end flows to the nozzle 2 via the water flow path 12, and drives the rotary member 21 to rotate, thereby driving the brush head portion 3 to rotate.
[0028] In the embodiment of the present application, by providing a plurality of brush bristles 31 arranged in an umbrella shape at the other end of the brush head 3, it is possible to achieve thorough cleaning of teeth. Meanwhile, when the rotating member is rotated by the water flow to rotate the brush head, the bristles 31 assume an umbrella shape, thereby increasing the area that the bristles 31 can cover, thereby improving the cleaning effect on teeth. Meanwhile, because the water flow can flow in all directions along the bristles 31, it also increases the area that the water flow can cover, improving the rinsing effect and further improving the cleaning effect. Furthermore, compared to the prior art, the toothbrush according to the embodiment of the present application allows users to clean their teeth efficiently without having to occasionally change the angle at which they grip the toothbrush, thereby improving the user experience.
[0029] Referring to Figures 1 and 2, in one embodiment, the nozzle 2 includes an attachment portion 24, which has an attachment hole, and the attachment portion 24 is configured to be annularly attached to the brush rod portion 1 through the attachment hole, thereby fixing the nozzle 2 to the brush rod portion 1.
[0030] Specifically, a spiral portion is provided on the side of the brush rod portion 1 closest to the nozzle 2, a screw thread is provided on the spiral portion, and the mounting hole is a screw hole, and the brush rod portion 1 and the nozzle 2 are connected by screwing the spiral portion into the mounting hole.
[0031] In one embodiment, the brush head 3 is integrally injection molded from TPU and is removably connected to the rotating member 21, making it easy to replace and able to meet different cleaning needs, providing greater flexibility and improving the user experience.
[0032] In one embodiment, the ends of the bristles 31 that are remote from the nozzle 2 extend away from the central axis of the brush head 3, thereby maximizing the coverage area of the bristles 31 on the teeth.
[0033] In one embodiment, a water outlet 4 is provided on the side of the nozzle 2 close to the brush head portion 3, the water outlet 4 is connected to the water flow path 12 and is provided corresponding to the brush head portion 3, and the water flow inside the nozzle 2 is ejected from the water outlet 4 and sprayed along the brush bristles 31.
[0034] In the embodiment of the present application, the water outlet 4 is arranged facing the rotatable brush head 3, the tooth surface, and the orthodontic appliance. When the brush head 3 rotates to clean food residue from gaps between the teeth and the orthodontic appliance, the water jets out from the water outlet 4 can wash away the tooth surface and the surface of the orthodontic appliance, removing food residue. The rotatable brush head 3 continuously rotates the brush bristles 31 to clean the teeth. In addition, the water jets out from the water outlet 4 wash away and clean food residue from the tooth surface, gaps between the teeth, the fixed block of the orthodontic appliance, and the gaps in the arch wire, thereby improving the cleaning effect of the toothbrush.
[0035] Referring to Figures 1 and 3, in one embodiment, the water flow path 12 has a water guide hole 121, one water outlet 4 is provided, and the water outlet 4 and the water guide hole of the water flow path 12 are spaced apart.
[0036] In one embodiment, the diameter of the water outlet 4 is R, where R satisfies 1.5≦R≦2.5 mm, and the distance L between the water outlet 4 and the water guide hole 121 of the water flow path 12 satisfies 5 mm≦L≦8 mm.
[0037] In the embodiment of the present application, by adjusting the distance between the water guide hole 121 and the water outlet 4, the magnitude of the pressure difference of the water flow can be adjusted, and the rotational power obtained by the rotating member 21 can be adjusted, thereby meeting different cleaning needs and improving the user experience.
[0038] In another embodiment, a plurality of water outlets 4 are provided, and the plurality of water outlets 4 are concentrated on the surface of the nozzle 2 and are located within the projected area of the brush bristles 31.
[0039] In one embodiment, the diameter of each of the plurality of water discharge ports 4 is R, and R satisfies 1.5≦R≦2.5 mm.
[0040] In the present application, the amount of water discharged can be increased and the cleaning effect can be further improved by providing multiple water outlets 4. Furthermore, by concentrating the multiple water outlets 4 within the projected area of the brush bristles 31, the high-speed rotating brush bristles 31 can splash water onto the side surfaces of the teeth covered by the brush bristles 31, providing a lateral impact force and improving the cleaning effect on the side surfaces of the teeth.
[0041] In one embodiment, a storage chamber 22 and a water guide groove 25 communicating with the water outlet 4 are formed within the nozzle 2, the water guide groove 25 is located on the side of the storage chamber 22, the rotating member 21 is installed within the storage chamber 22, and the water guide groove 25 communicates with the storage chamber 22 and the water flow path 12, that is, the water guide groove 25 communicates with the water guide hole 121.
[0042] The nozzle 2 is provided with a water outlet 26 which communicates with the water guide hole 121, and the water flowing out from the water guide hole 121 enters the water guide groove 25 via the water outlet 26.
[0043] The water flowing out from the water guide hole 121 flows into the water guide groove 25 via the water outlet 26, flows into the storage chamber 22 along the water guide groove 25, rotates the rotating member 21, and then flows out from the water outlet 4.
[0044] In one embodiment, the central axis of the water flow path 12 and the axis about which the rotating member 21 rotates around the first axis are perpendicular to each other.
[0045] The axis of the first shaft is the central axis of the rotating member 21 .
[0046] In the nozzle 2 of the toothbrush according to the embodiment of the present application, the central axis of the water flow path 12 and the axis of the first axis, which serves as the rotation axis of the rotating member 21, are arranged perpendicular to each other, so that the rotating member 21 and the water guide hole 121 are on the same horizontal line, ensuring a beautiful appearance, and in combination with the water guide groove 25, guiding the water flow to the edge of the rotating member 21 to move the rotating member 21, providing the rotating direction and sufficient torque for the rotating member 21, improving the rotation accuracy of the rotating member 21, ensuring the rotation effect of the rotating member 21, and improving the cleaning effect.
[0047] The above-mentioned storage chamber 22 is connected to the water outlet 4, and by providing the storage chamber 22 and using it in conjunction with the water outlet 4, the water flow flowing out from the water flow path 12 of the brush rod portion 1 creates a pressure difference within the nozzle 2, and the pressure difference is used to provide rotational power to the rotating member 21.
[0048] In the embodiment of the present application, the size of the pressure difference is controlled by adjusting the size of the hole diameter of the rotating member 21 and the water outlet 4, thereby meeting different cleaning requirements and providing a relatively high degree of freedom.
[0049] As shown in Figures 4 and 5, in one embodiment, the nozzle 2 is provided with a connection hole 23 that communicates with the storage chamber 22, and one end of the brush head portion passes through the connection hole 23 to connect to the rotating member 21.
[0050] The nozzle 2 includes a nozzle cover 27. The nozzle cover 27 is placed over the storage chamber 22 to seal the storage chamber 22.
[0051] In one embodiment, the brush head 3 includes a fixed post 32, and the entire fixed post 32 is installed inside the nozzle 2. The end face of the fixed post 32 at the end remote from the rotating member 21 is installed in the connecting hole 23 and is located on the same horizontal plane as the outer surface of the nozzle 2 (not shown). The brush bristles 31 are connected to the end face of the fixed post 32 at the end remote from the rotating member 21.
[0052] 4 and 5, the brush head 3 includes a fixed post 32, one end of which is installed inside the nozzle 2 and connected to the rotating member 21, and the other end of which passes through the connecting hole 23 and at least a portion of which extends out from the nozzle 2. The brush bristles 31 are connected to the end face and side face of the fixed post 32 at the end remote from the interior of the nozzle 2.
[0053] In one embodiment, a fixing hole 211 is provided in the rotating member 21, and a connecting portion 33 is provided at the end of the brush head unit 3 close to the rotating member 21, i.e., the connecting portion 33 is provided at the end of the above-mentioned fixing post 32 close to the rotating member 21, and the connecting portion 33 is engaged in the fixing hole 211, so that the rotating member 21 can rotate around the connecting portion 33, thereby removably connecting the brush head unit 3 to the rotating member 21.
[0054] In one embodiment, the rotating member 21 is an impeller rotor structure, a vane rotor structure, or a double pinion structure, etc.
[0055] An embodiment of the present application further provides an oral irrigator, which includes a toothbrush according to the above embodiment and a water supply end, the water supply end communicating with the water flow path 12 in the brush rod portion 1 to supply water to the toothbrush.
[0056] When the oral irrigator according to the embodiment of the present application is operated, the high-pressure water flow is discharged from the tail of the brush rod portion 1, i.e., from the end of the brush rod portion 1 remote from the nozzle 2, and flows along the water flow path 12 into the storage chamber 22 of the nozzle 2. The high-pressure water flow rotates the rotating member 21 in the nozzle 2 for a predetermined distance or for a predetermined time, and then is discharged from the water outlet 4, releasing the pressure. This uses the water pressure difference to drive the rotating member 21 and impart rotational power to it, while also rinsing the tooth surface and removing food residue, thereby achieving a highly flexible and efficient cleaning effect.
[0057] In the description of this application, unless otherwise specified, the terms "installed" and "connected" should be understood in a broad sense. For example, they may be fixedly connected, detachably connected, or integrally connected. They may also be directly connected, indirectly connected via an intermediate, or the interiors of two elements may be in communication with each other. Those skilled in the art can understand the specific meanings of the above terms in this application according to the specific circumstances.
[0058] Unless there is a contradiction, the features in the embodiments of this application can be combined with each other.
[0059] The above is only a preferred embodiment of the present application and does not limit the present application. Those skilled in the art may have various modifications and variations to the present application. As long as it does not deviate from the essence and spirit of the present application, all modifications, equivalent replacements, improvements, etc., fall within the protection scope of the present invention. [Explanation of symbols]
[0060] 1 Brush rod part 12 Water channel 121 Water guide hole 2 nozzles 21 Rotating member 211 Fixed hole 22 Containment Room 23 Connection hole 24 Mounting part 25 Water guide groove 26 water outlet 27 Nozzle cover 3 Brush head 31 Brush bristles 32 Fixed column 33 Connection 4. Water outlet
Claims
1. a brush rod portion, a nozzle, and a brush head portion; A water flow path communicating with the water supply end is provided within the brush rod portion, the nozzle is connected to an end of the brush rod portion remote from the water supply end, the inside of the nozzle is in communication with the water flow path, and a rotating member is installed within the nozzle; The brush head has one end that penetrates the nozzle and is connected to the rotary member, and the other end that is provided with a plurality of brush bristles, the plurality of brush bristles being arranged in an umbrella shape, The water flowing from the water supply end into the brush rod portion flows to the nozzle via the water flow path, and rotates the rotary member, thereby rotating the brush head portion. A toothbrush characterized by:
2. The ends of the brush bristles that are away from the nozzle extend in a direction away from the central axis of the brush head.
2. The toothbrush of claim 1.
3. A water outlet is provided on the nozzle on the side close to the brush head portion, and the water outlet is connected to the water flow path and is provided corresponding to the brush head portion, so that the water flow in the nozzle is discharged from the water outlet and sprayed along the brush bristles.
2. The toothbrush of claim 1.
4. The water flow path has a water guide hole, and one water outlet is provided, and the water outlet and the water guide hole of the water flow path are provided at a distance from each other.
4. The toothbrush of claim 3.
5. A plurality of the water outlets are provided, and the plurality of water outlets are concentrated on the surface of the nozzle and are located within the projected area of the brush bristles.
4. The toothbrush of claim 3.
6. A water guide groove and a storage chamber communicating with the water outlet are formed in the nozzle, the water guide groove is located at a side of the storage chamber, the rotating member is installed in the storage chamber, and the water guide groove communicates with the storage chamber and the water flow path; The water flowing out from the water flow path flows along the water guide groove into the storage chamber, rotates the rotary member, and then flows out from the water outlet.
4. The toothbrush of claim 3.
7. The central axis of the water flow path and the axis about which the rotating member rotates around the first axis are perpendicular to each other.
7. The toothbrush of claim 6.
8. The nozzle is provided with a connection hole communicating with the storage chamber, and one end of the brush head portion penetrates the connection hole to connect with the rotating member.
7. The toothbrush of claim 6.
9. A fixing hole is provided in the rotary member, and a connecting portion is provided on the end of the brush head portion adjacent to the rotary member, and the connecting portion is engaged in the fixing hole, thereby removably connecting the brush head portion to the rotary member.
9. The toothbrush of claim 8.
10. A toothbrush comprising the toothbrush according to any one of claims 1 to 9 and a water supply end, The water supply end communicates with a water flow path in the brush rod portion to supply water to the toothbrush. An oral irrigator characterized by: