Brush head and oral cavity cleaner
By embedding the tube body into the handle rod in the brush head and processing the fluid channel independently, the problem of poor liquid flow is solved, and a smoother liquid flow effect is achieved.
Patent Information
- Application Number
- CN202421950081.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The problem of poor liquid flow in existing erosion cleaners.
A brush head is designed to ensure smooth inner surface of the fluid passageway by embedding the tube body in the handle bar and using the fluid passageway of the tube body as a flow channel for liquid flow. The pipe body is processed independently of the handle bar to ensure smooth inner surface of the fluid passageway, and combined with the flow channel design to facilitate liquid flow.
It improves the smoothness of liquid flow, reduces obstacles caused by uneven flow path surface, and enhances the efficiency of liquid flow.
Smart Images
Figure CN223054058U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present application relate to the technical field of oral appliances, and particularly to a brush head and an oral cleaner. Background Art
[0002] With the increasing emphasis on oral care by people, oral cleaners have gradually become common oral care tools in families. Among them, oral cleaners with the function of flushing teeth, such as dental irrigators and integrated flushing and brushing cleaners, can use a water pump to pump out a high-speed water column with a certain pressure, and use the impact force of the high-speed water column to clean teeth and tooth gaps.
[0003] The related integrated flushing and brushing cleaner may include a body and a brush handle provided at one end of the body. Among them, the brush handle may be provided with a fluid passage and a liquid outlet hole communicating with the fluid passage. The water pump provided in the body can suck the liquid in the water tank into the fluid passage and spray it out from the liquid outlet hole.
[0004] However, the above-mentioned integrated flushing and brushing cleaner has the problem of unsmooth liquid flow. Summary of the Invention
[0005] The purpose of the embodiments of the present application is to provide a brush head and an oral cleaner, which can solve the problem of unsmooth liquid flow.
[0006] To achieve the above purpose, on the one hand, an embodiment of the present application provides a brush head for connecting to the output shaft of a brake in an oral cleaner. The output shaft has an infusion channel for conveying a cleaning liquid. The brush head includes a neck and a cleaning member provided at one end of the neck: the cleaning member has a base and one or more clusters of bristles extending from a first surface of the base; the neck includes a shank and a tube; the shank has a first opening and a second opening; the tube is embedded in the shank, and the tube has a fluid channel; the output shaft is connected to the shank through the first opening, and the infusion channel of the output shaft is communicated with the fluid channel of the tube; the first end of the tube is configured to spray the cleaning liquid through the second opening in a direction away from the first surface of the base.
[0007] Optionally, the shank is an injection molded part formed by placing the tube in an injection mold and injection molding using the tube.
[0008] Optionally, the fluid passage includes a first passage and a second passage that communicate with each other, and the cleaning liquid conveyed by the output shaft sequentially passes through the first passage and the second passage: at least a part of the inner diameter of the first passage gradually decreases along the conveying direction of the cleaning liquid; and / or, at least a part of the inner diameter of the second passage remains unchanged along the conveying direction of the cleaning liquid; and / or, the second passage is configured to have a flow direction conversion portion, and the input direction and the output direction of the cleaning liquid of the flow direction conversion portion are arranged at an angle; and / or, at least a part of the inner diameter of the second passage gradually decreases along the conveying direction of the cleaning liquid.
[0009] Optionally, when the second passage is configured to have a flow direction conversion portion, and the input direction and the output direction of the cleaning liquid of the flow direction conversion portion are arranged at an angle, the flow direction conversion portion is a chamfered portion or a circular arc transition portion.
[0010] Optionally, the base is configured to have a through hole, and the fluid passage of the pipe body communicates with the through hole.
[0011] Optionally, at least a part of the first end of the pipe body passes out of the handle rod through the second opening and is disposed in the through hole.
[0012] Optionally, at least a part of the first end of the pipe body is welded to the inner wall of the through hole.
[0013] Optionally, the base is configured to have a convex portion that communicates with the through hole and extends from the first surface of the base, and the convex portion is configured to have an output passage and a fluid outlet: the fluid passage of the pipe body communicates with the convex portion, and the cleaning liquid is sprayed in a direction away from the first surface of the base through the fluid outlet.
[0014] Optionally, at least a part of the cluster or multiple clusters of bristles is configured to surround the convex portion.
[0015] Optionally, the base is provided with one or more mounting holes, and the cluster or multiple clusters of bristles are inserted into the one or more mounting holes in a one-to-one correspondence.
[0016] Optionally, the base is snap-fitted or welded to the second opening.
[0017] Optionally, the brush head further includes an elastic member, and at least a part of the base is received in the second opening: the elastic member is configured to at least cover a part of the outer surface of the second opening and at least cover a part of the surface of the base exposed from the second opening.
[0018] Optionally, the brush head further includes a limiting component, which is disposed in the handle rod, and the limiting component is closer to the second opening than the tube body. The limiting component is configured to allow the output shaft to pass through and be connected to the output shaft.
[0019] To achieve the above object, on the other hand, an embodiment of the present application further provides an oral cleaner, including a body and the brush head as described above. The body includes a pump mechanism and a brake having the output shaft. The infusion channel of the output shaft is in communication with the fluid channel of the tube body of the brush head. The pump mechanism is configured to convey the cleaning liquid to the fluid channel of the tube body through the infusion channel of the output shaft, so that the tube body sprays the cleaning liquid in a direction away from the first surface of the base. The brake is configured to drive the brush head to perform a cleaning movement through the output shaft.
[0020] In summary, for the brush head and the oral cleaner provided by the embodiments of the present application, by embedding the tube body in the handle cavity of the handle rod and using the fluid channel of the tube body as the flow channel for liquid flow. Compared with the related art that uses the handle cavity of the handle rod formed by injection molding as the flow channel for liquid flow, due to reasons such as the complex shape and relatively thick wall thickness of the handle rod, shrinkage and other defects are generated, resulting in an uneven surface of the flow channel and hindering liquid flow. For the brush head and the oral cleaner provided by the embodiments of the present application, the tube body is processed independently of the handle rod, and the inner surface of the fluid channel of the tube body can be made smooth to facilitate liquid flow. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0022] Figure 1 It is a schematic structural diagram of a brush head provided by an embodiment of the present application;
[0023] Figure 2 For Figure 1 It is a longitudinal sectional view of the shown brush head;
[0024] Figure 3 For Figure 1 It is an exploded view of the shown brush head;
[0025] Figure 4 It is a schematic diagram of an oral cleaner provided by an embodiment of the present application;
[0026] Figure 5 It is a bottom view of the base provided by an embodiment of the present application.
[0027] Description of the drawing reference numerals:
[0028] 1000, brush head;
[0029] 100, neck; 110, handle rod; 111, first opening; 112, second opening; 120, tube body; 121, fluid passage; 1211, first passage; 1212, second passage; 122, first end; 123, second end;
[0030] 200, cleaning member; 210, base; 211, through hole; 212, protrusion; 213, mounting hole; 214, first surface; 220, bristles; 230, elastic member;
[0031] 300, limiting assembly;
[0032] 2000, pump mechanism;
[0033] 3000, brake; 3100, body; 3200, output shaft; 3210, infusion flow channel;
[0034] 4000, housing;
[0035] 5000, water tank;
[0036] 6000, connecting member; 6100, liquid outlet flow channel. Detailed implementation manners
[0037] Figure 1 is a schematic structural diagram of a brush head provided by an embodiment of the present application. Refer to Figure 1 , the brush head 1000 provided by the embodiment of the present application may include a neck 100 and a cleaning member 200. Among them, the shape of the neck 100 may be strip-shaped, and the cleaning member 200 may be arranged at one end in the extending direction of the neck 100 (such as Figure 1 the up and down direction). Figure 2 is Figure 1 a longitudinal sectional view of the brush head shown. Refer to Figure 2 , the cleaning member 200 may include a base 210 and bristles 220. Among them, the base 210 may have a relatively arranged first surface 214 and a second surface in a direction perpendicular to the extending direction of the neck 100 (such as Figure 2 the left and right direction), one cluster or multiple clusters may be arranged on the first surface 214 of the base 210, and the bristles 220 may extend from the first surface 214 of the base 210.
[0038] Figure 3 is Figure 1 an exploded view of the brush head shown. Refer to Figure 3, the neck 100 may include a shank 110 and a tube body 120. The shapes of the shank 110 and the tube body 120 may both be strip-shaped. The extending direction of the shank 110 is the same as that of the tube body 120, and both extending directions are the extending direction of the neck 100 (such as Figure 3 the up and down direction). The shank 110 may have a first opening 111 and a second opening 112 that are oppositely arranged in its extending direction (such as Figure 3 the up and down direction). In combination with Figure 2 and Figure 3 , the tube body 120 may be embedded in the shank 110, and the tube body 120 may have a fluid passage 121.
[0039] Figure 4 is a schematic diagram of an oral cleaner provided by an embodiment of the present application. Referring to Figure 4 , the oral cleaner may include a brake 3000, and the brake 3000 may have an output shaft 3200 that penetrates through the body 3100 of the brake 3000. Referring to Figures 2 - 4 , the output shaft 3200 may be connected to the shank 110 through the first opening 111, and the infusion flow channel 3210 of the output shaft 3200 is communicated with the fluid passage 121 of the tube body 120. In addition, the tube body 120 may have a first end 122 and a second end 123 that are oppositely arranged along its extending direction, and the first end 122 of the tube body 120 may spray the cleaning liquid through the second opening 112 in a direction away from the first surface 214 of the base 210.
[0040] For the brush head 1000 provided by the embodiment of the present application, by embedding the tube body 120 in the handle cavity of the shank 110 and using the fluid passage 121 of the tube body 120 as the flow channel for liquid flow. Compared with the related art that uses the handle cavity of the shank 110 formed by injection molding as the flow channel for liquid flow, due to reasons such as the complex shape and relatively thick wall thickness of the shank 110, shrinkage and other defects are generated, resulting in an uneven surface of the flow channel and hindering the liquid flow. For the brush head 1000 provided by the embodiment of the present application, the tube body 120 is processed independently of the shank 110, and the inner surface of the fluid passage 121 of the tube body 120 can be made smooth to facilitate the liquid flow.
[0041] Optionally, the shank 110 is an injection molded part obtained by placing the tube body 120 in an injection mold and performing secondary injection molding on the tube body 120, so as to further improve the connection stability.
[0042] It should be noted that due to the requirements for water pressure and flow rate, the diameter of the liquid outlet end of the fluid passage 121 needs to be set smaller. However, since the diameter of the liquid inlet end of the fluid passage 121 is larger, in order to facilitate a smooth transition, the inner diameter of at least part of the liquid infusion flow passage 3210 can be gradually reduced. Specifically, the fluid passage 121 can include a first passage 1211 and a second passage 1212 that are connected. The cleaning liquid conveyed by the liquid infusion flow passage 3210 of the output shaft 3200 can sequentially pass through the first passage 1211 and the second passage 1212. Among them, at least part of the inner diameter of the first passage 1211 can gradually decrease along the conveying direction of the cleaning liquid. Further, the small-diameter section of the first passage 1211 can be close to the second passage 1212, and the large-diameter section of the first passage 1211 can be close to the liquid infusion flow passage 3210 and communicate with the liquid infusion flow passage 3210.
[0043] Optionally, at least part of the inner diameter of the second passage 1212 can remain unchanged along the conveying direction of the cleaning liquid; and / or, at least part of the inner diameter of the second passage 1212 can gradually decrease along the conveying direction of the cleaning liquid. That is to say, along the conveying direction of the cleaning liquid, the inner diameter of the second passage 1212 can remain unchanged; or, the inner diameter of the second passage 1212 can gradually decrease; or, the inner diameter of part of the second passage 1212 remains unchanged, and the inner diameter of part of the second passage 1212 gradually decreases.
[0044] Optionally, the second passage 1212 can have a flow direction conversion part, and the input direction and output direction of the cleaning liquid of the flow direction conversion part are arranged at an angle. Further, the flow direction conversion part can be a chamfer part or an arc transition part. In this way, the water path can be made smoother and the energy loss can be reduced.
[0045] Optionally, the base 210 can have a through hole 211, and the fluid passage 121 of the pipe body 120 can communicate with the through hole 211. In this way, the liquid in the fluid passage 121 of the pipe body 120 can be ejected outward through the through hole 211.
[0046] Optionally, at least part of the first end 122 of the pipe body 120 passes through the second opening 112 and penetrates into the through hole 211 through the handle rod 110. In this way, the position of the pipe body 120 relative to the handle rod 110 is defined by the second opening 112 and the through hole 211. In addition, part of the pipe body 120 can also be used to guide the liquid to penetrate out of the through hole 211.
[0047] Optionally, at least part of the first end 122 of the pipe body 120 is welded to the inner wall of the through hole 211. Among them, the welding method can include ultrasonic welding, etc.
[0048] Optionally, the base 210 may have a protrusion 212 that communicates with the through hole 211 and extends from the first surface 214 of the base 210. The protrusion 212 may have an output channel and a fluid outlet. The fluid channel 121 of the tube body 120 may communicate with the protrusion 212, and the cleaning liquid may be ejected through the fluid outlet in a direction away from the first surface 214 of the base 210. In this way, the liquid can be ejected under the guidance of the through hole 211 of the protrusion 212, so as to facilitate setting the outflow direction of the liquid.
[0049] Optionally, at least a part of the cluster or clusters of bristles 220 is configured to surround the protrusion 212. In this way, the relatively hard protrusion 212 can be hidden in the relatively soft clusters of bristles 220 to avoid the protrusion 212 protruding and touching the user.
[0050] Optionally, the base 210 may be provided with one or more mounting holes 213, and the cluster or clusters of bristles 220 are inserted into the one or more mounting holes 213 in a one-to-one correspondence. That is to say, when the base 210 is provided with one mounting hole 213, a cluster of bristles 220 can be inserted into the one mounting hole 213. When the base 210 is provided with multiple mounting holes 213, multiple clusters of bristles 220 can be inserted into the multiple mounting holes 213 in a one-to-one correspondence. In this way, it is convenient to replace the worn bristles 220 cluster by cluster.
[0051] Optionally, the base 210 and the second opening 112 may be fixed by a detachable connection method such as snap connection to facilitate the replacement of the cleaning member 200. Alternatively, the base 210 and the second opening 112 may be fixed by means such as welding (such as ultrasonic welding) to improve the connection stability.
[0052] Figure 5 The bottom view of the base provided by the embodiment of the present application. In combination with Figure 3 and Figure 5 , optionally, the brush head 1000 may further include an elastic member 230. At least a part of the base 210 may be received in the second opening 112. The elastic member 230 may at least cover a part of the outer surface of the second opening 112 and at least cover a part of the surface of the base 210 exposed from the second opening 112. In this way, the fixing method of encapsulation is adopted to achieve the technical effect of avoiding rattling. That is to say, the cleaning member 200 is placed in the second opening 112, and the outer surface of the second opening 112 and a part of the surface of the cleaning member 200 are wrapped by encapsulation, so as to fix the cleaning member 200 and the handle 110. Of course, the encapsulation can also cover other parts of the handle 110.
[0053] Refer to Figure 2 and Figure 3, Optionally, the brush head 1000 provided by the embodiments of the present application may further include a limiting component 300. The limiting component 300 may be disposed in the handle rod 110, and the limiting component 300 is closer to the second opening 112 than the tube body 120. The limiting component 300 may be for the output shaft 3200 to pass through and be connected to the output shaft 3200. In this way, by using the detachable connection between the limiting component 300 and the output shaft 3200, it is convenient for the user to replace the brush head 1000.
[0054] Reference Figure 4 , The embodiments of the present application further provide an oral cleaner, Figure 4 The arrow in indicates the flow direction of the liquid. Reference Figure 4 , The oral cleaner may include a body and the brush head 1000 as described above. The body may include a pump mechanism 2000 and a brake 3000 having the output shaft 3200. The infusion channel 3210 of the output shaft 3200 communicates with the fluid channel 121 of the tube body 120 of the brush head 1000. The pump mechanism 2000 may convey the cleaning liquid to the fluid channel 121 of the tube body 120 through the infusion channel 3210 of the output shaft 3200, so that the tube body 120 sprays the cleaning liquid in a direction away from the first surface 214 of the base 210. The brake 3000 may drive the brush head 1000 to perform a cleaning movement through the output shaft 3200.
[0055] The body may further include a housing 4000, and the pump mechanism 2000 and the brake 3000 may be disposed in the inner cavity of the housing 4000. To improve the convenience of the oral cleaner, a water tank 5000 for storing the cleaning liquid may also be provided in the housing 4000. The body may further include a connecting member 6000 disposed in the inner cavity of the housing 4000. The connecting member 6000 may have an outlet channel 6100 that communicates the outlet end of the pump mechanism 2000 with the infusion channel 3210 of the output shaft 3200 of the brake 3000. The connecting member 6000 may further have an inlet channel that communicates the inlet end of the pump structure 2000 with the water tank 5000.
[0056] Among them, terms such as "upper" and "lower" are used to describe the relative positional relationship of each structure in the drawings, only for the sake of clarity in narration, rather than to limit the scope of implementation of the present application. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of implementation of the present application.
[0057] It should be noted that: in this application, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0058] In addition, in this application, unless otherwise clearly specified or limited, the terms "mounted", "connected", "coupled", "fixed" and other terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal connection 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.
[0059] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0060] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of this application, rather than to limit it; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A brush head for connecting to the output shaft of a brake in an oral cleaner, characterized in that, The output shaft has an infusion flow channel for conveying a cleaning liquid, and the brush head includes a neck and a cleaning member provided at one end of the neck: The cleaning member has a base and one or more clusters of bristles extending from a first surface of the base; The neck includes a shank and a tube; the shank has a first opening and a second opening; the tube is embedded in the shank, and the tube has a fluid channel; the output shaft is connected to the shank through the first opening, and the infusion flow channel of the output shaft is communicated with the fluid channel of the tube; The first end of the tube is configured to jet the cleaning liquid through the second opening in a direction away from the first surface of the base.
2. The brush head according to claim 1, wherein, The shank is an injection molded part formed by placing the tube in an injection mold and injection molding using the tube.
3. The brush head according to claim 1, wherein, The fluid channel includes a first channel and a second channel that are communicated, and the cleaning liquid conveyed by the output shaft sequentially passes through the first channel and the second channel: At least a part of the inner diameter of the first channel gradually decreases along the conveying direction of the cleaning liquid; and / or, At least a part of the inner diameter of the second channel remains unchanged along the conveying direction of the cleaning liquid; and / or, the second channel is configured to have a flow direction conversion part, and the input direction and the output direction of the cleaning liquid at the flow direction conversion part are arranged at an angle; and / or, at least a part of the inner diameter of the second channel gradually decreases along the conveying direction of the cleaning liquid.
4. The brush head according to claim 3, wherein When the second channel is configured to have a flow direction conversion part and the input direction and the output direction of the cleaning liquid at the flow direction conversion part are arranged at an angle, the flow direction conversion part is a chamfered part or an arc transition part.
5. The brush head according to claim 1, characterized in that, The base is configured to have a through hole, and the fluid channel of the tube is communicated with the through hole.
6. The brush head according to claim 5, wherein At least a part of the first end of the tube passes through the second opening out of the shank and is disposed in the through hole.
7. The brush head according to claim 6, characterized in that, At least a part of the first end of the tube is welded to the inner wall of the through hole.
8. The brush head according to claim 5, characterized in that, The base is configured to have a convex part that is communicated with the through hole and extends from the first surface of the base, and the convex part is configured to have an output channel and a fluid outlet: The fluid channel of the tube is communicated with the convex part, and the cleaning liquid is jetted through the fluid outlet in a direction away from the first surface of the base.
9. The brush head according to claim 8, characterized in that, At least a part of the one or more clusters of bristles is configured to surround the convex part.
10. The brush head according to claim 1, characterized in that, The base is provided with one or more mounting holes, and the one or more clusters of bristles are correspondingly inserted into the one or more mounting holes.
11. The brush head according to claim 1, wherein, The base is snap-fitted or welded to the second opening.
12. The brush head according to claim 1, characterized in that, The brush head further includes an elastic member, and at least a part of the base is received in the second opening: The elastic member is configured to cover at least a part of the outer surface of the second opening and at least a part of the surface of the base exposed from the second opening.
13. The brush head according to claim 1, characterized in that, A limiting assembly is further included, and the limiting assembly is disposed in the shank, and the limiting assembly is closer to the second opening than the tube, and the limiting assembly is configured to allow the output shaft to pass through and be connected to the output shaft.
14. An oral cleaner, characterized in that, Comprising a body and a brush head as described in any one of claims 1-13, the body includes a pump mechanism and a brake having the output shaft, and the infusion flow channel of the output shaft communicates with the fluid channel of the tube body of the brush head; The pump mechanism is configured to convey the cleaning liquid to the fluid channel of the tube body through the infusion flow channel of the output shaft, so that the tube body sprays the cleaning liquid in a direction away from the first surface of the base; The brake is configured to drive the brush head to perform a cleaning movement through the output shaft.