CN217986947U - interdental brush - Google Patents

Abstract

The embodiment of the utility model relates to the technical field of oral cavity cleaning, and discloses an interdental brush. This interdental brush includes: a brush head and a brush rod; the two ends of the brush rod are respectively the tail end of the first brush rod and the tail end of the second brush rod; the brush head is arranged at the tail end of the first brush rod; one end of the brush handle is a pipe neck provided with a pipe orifice, the pipe neck is provided with a pipeline communicated with the pipe orifice, and a pipe cavity communicated with the pipeline is formed inside the brush handle; the tail end of the second brush rod is inserted into the pipe cavity through the pipe orifice and the pipeline; the wall thickness of the tube neck close to the tube opening is 0.1mm to 0.3mm. The embodiment of the utility model provides an interdental brush's beneficial effect is: the use flexibility is improved, which is beneficial for the user to adjust the brushing angle according to the brushing condition in the process of brushing teeth by using the interdental brush, thereby more thoroughly cleaning the tooth surface.

Description

interdental brush

technical field

The utility model relates to the technical field of oral cavity cleaning, in particular to an interdental brush.

Background technique

"Interdental Brush", also known as interdental brush and gap brush, is a small toothbrush specially designed for cleaning the interdental spaces (which cannot be touched by ordinary toothbrushes) as a supplement to toothbrushes.

The interdental brush includes a brush head for brushing the tooth surface, a brush handle for the user to hold and a brush rod connected between the brush head and the handle, and the brush head is arranged on the end of the brush rod away from the brush handle . When in use, the user holds the brush handle to send the brush head into the user's oral cavity, and makes the brush head move back and forth in the gap between the two teeth, so that the tooth surface can be cleaned. At present, the interdental brushes on the market can hardly be bent or cannot be bent at all during use. This kind of interdental brush has poor flexibility in use, which is not only not conducive to users holding the interdental brush at different angles to send the brush head into the oral cavity In addition, it is easy to damage the teeth and gums due to the high rigidity of the brush rod, which affects the use experience.

Utility model content

Based on this, it is necessary to provide an interdental brush with simple structure and good flexibility in use for the problems existing in traditional interdental brushes.

An interdental brush. The interdental brush comprises: a brush head and a brush rod; the two ends of the brush rod are respectively the end of the first brush rod and the end of the second brush rod; the brush head is arranged at the end of the first brush rod; and a brush handle , one end of the brush handle is a pipe neck provided with a nozzle, the pipe neck is provided with a pipe communicating with the pipe mouth, and the inside of the brush handle is provided with a lumen communicating with the pipe; The end of the second brush rod is inserted into the lumen through the nozzle and the pipe; the wall thickness of the neck near the nozzle is 0.2 mm to 0.5 mm.

In some embodiments, the wall thickness of the neck near the nozzle is 0.3 mm.

In some embodiments, the radial dimension of the pipe is larger than the radial dimension of the brush rod; the gap between the inner wall of the pipe and the outer surface of the brush rod is set at 0.2 mm to 0.3 mm.

In some embodiments, the brush handle includes a handle shell, the handle shell is made of soft rubber material; and the handle core is made of hard rubber material; the handle core includes a grip base, and the handle shell The handle is sheathed on the holding base to become the holding portion of the brush handle.

In some embodiments, the neck includes a neck base and a neck rubber sleeve made of soft plastic injection molded, and the neck rubber sleeve is sleeved on the neck base; the neck base is the shank The portion that protrudes from the handle shell.

In some embodiments, the length of the pipe neck rubber sleeve is greater than the length of the pipe neck base, so that the pipe neck rubber sleeve covers the pipe neck base and part of the surface of the brush rod.

In some embodiments, the holding base is provided with the lumen for inserting and fixing the end of the second brush rod, and the lumen is in the holding base along the length direction of the handle Extending in a direction away from the neck.

The beneficial effect of the interdental brush provided by the embodiment of the utility model is: since the brush handle provided by the embodiment of the application is used to cover the thinner tube neck of the brush rod, such a design is conducive to weakening the bending of the tube neck to the brush rod The restraint of deformation improves the bending flexibility of the brush rod, so that the user can adjust the brushing angle according to the brushing situation in the process of using the interdental brush to clean the teeth, and clean the tooth surface more thoroughly.

Description of drawings

One or more embodiments are exemplified by the corresponding drawings, and these exemplifications are not construed as limiting the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified Note that the drawings in the drawings are not limited to scale.

Fig. 1 is a schematic structural view of an interdental brush provided by an embodiment of the present invention;

Fig. 2 is a sectional view of the interdental brush provided by the embodiment of the present invention;

Fig. 3 is an enlarged view of part A in Fig. 2, showing the structure of the pipeline;

Fig. 4 is an enlarged view of part B in Fig. 2, showing the structure of the lumen.

Explanation of reference signs:

100. Interdental brush; 10. Brush head; 20. Brush rod; D1. Radial dimension of brush rod; 30. Brush handle; 31. Handle shell; 32. Handle core; T1. Neck; P. Nozzle; R1 .pipe; D2. pipe radial dimension; B. neck wall thickness; T2. grip; 321. neck matrix; 322. grip matrix; R2. lumen; D3. lumen radial dimension; 323. Arc groove; 33. Pipe neck rubber sleeve.

detailed description

The utility model will be described in detail below in conjunction with specific embodiments. It should be emphasized that the following description is only exemplary, not intended to limit the scope of the utility model and its application.

It should be noted that, unless otherwise clearly specified and limited, the terms "central", "vertical", "transverse", "upper", "lower", "vertical", "horizontal", " The orientation or positional relationship indicated by "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have Certain orientations, constructed and operative in certain orientations, therefore are not to be construed as limitations on the invention. The terms "mounted", "connected", "connected", "fixed" and other terms should be interpreted in a broad sense, for example, it may be fixed connection, detachable connection, or integral connection; it may be mechanical connection or Electrical connection; either directly or indirectly through an intermediary. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features; thus, the definitions of "first", "second" The feature of "second" may expressly or implicitly include one or more of these features; the meaning of "plurality" is two or more; "and/or" includes one or more related listed items Any and all combinations of . Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

As shown in FIG. 1 , the interdental brush 100 provided by the embodiment of the present invention may include: a brush head 10 , a brush rod 20 and a brush handle 30 . In the embodiment of the present application, both the brush rod 20 and the brush handle 30 are rod-shaped components with a certain length.

Wherein, the "brush head 10" is a component provided with bristles (not shown), which are used to extend into the oral cavity and reciprocate relative to the teeth to brush the tooth surfaces.

The "brush rod 20" is used as a connecting part connected between the brush head 10 and the brush handle 30, which is allowed to have a certain degree of elastic bending during actual use. The elastic deformation of the brush rod 20 is beneficial to switch the brushing angle when using the interdental brush 100 to brush the teeth, so as to avoid damage to the gums and obtain a good brushing effect.

The "handle 30" is the object on which the user directly exerts force on the interdental brush 100, and serves as the part of the interdental brush 100 for the user to hold. The user grasps the brush handle 30 to drive the brush head 10 to rub back and forth between the two teeth (or called "interdental gap"), and then brushes the tooth surface between the two teeth.

Continuing to refer to FIG. 1 , the two ends of the brush bar 20 are respectively the end of the first brush bar and the end of the second brush bar. The brush head 10 is arranged at the end of the first brush rod, and the bristles of the brush head 10 are distributed along the length direction of the brush rod 20 .

Please refer to FIG. 2 , FIG. 3 and FIG. 4 together. One end of the brush handle 30 is a tube neck T1 with an opening on the end surface. For the convenience of description, the opening is called nozzle P.

In the neck T1 , a pipe R1 communicating with the nozzle P extends from the nozzle P along the length direction of the neck T1 to the other end of the handle 30 away from the neck T1 . The part of the brush handle 30 other than the neck T1 is the holding portion T2 of the brush handle 30 , and the inside of the holding portion T2 is provided with a lumen R2 communicating with the pipeline R1 . The radial dimension D1 of the lumen R2 is slightly larger than the radial dimension D1 of the brush rod 20 and smaller than the radial dimension D2 of the pipe R1, so that the end of the second brush rod can be inserted and fixed in the lumen after passing through the nozzle P and the pipe R1 Inside R2.

As shown in FIG. 3 , in some embodiments, the wall thickness B of the portion of the neck T1 close to the nozzle P can be set to 0.2 mm to 0.5 mm, preferably 0.3 mm. Between the neck T1 and the holding portion T2, the radial dimension of the neck T1 gradually increases, so as to transition to be consistent with the radial dimension of the holding portion T2.

The advantage of the brush handle 30 provided by the embodiment of the present application is that compared with the existing interdental brush 100, the neck T1 of the brush handle 30 provided by the embodiment of the present application for covering the brush rod 20 is thinner , such a design is conducive to weakening the restraint of the tube neck T1 on the bending deformation of the brush rod 20, and improving the bending flexibility of the brush rod 20, so that the user can adjust it according to the brushing situation in the process of using the interdental brush 100 to brush teeth. The angle of brushing can clean the tooth surface more thoroughly.

As shown in FIG. 1 , the brush handle 30 includes a handle shell 31 and a handle core 32 . As shown in FIG. 2 , the handle 32 includes a neck base 321 and a grip base 322 . One end of the grip base 322 is connected to the neck base 321 . The grip base 322 and the neck base 321 may be integrally designed parts.

The handle shell 31 can be made of soft rubber material, and the handle core 32 can be made of hard hard rubber material. The soft handle shell 31 covers the grip base 322 of the handle core 32 and becomes the grip portion T2 of the brush handle 30 with a good grip. As shown in Figure 4, the neck rubber sleeve 33 formed of soft rubber material covers the neck base 321 of the handle core 32 to become the above-mentioned neck T1. The bending of 321 acts as a buffer, reducing the occurrence of breakage of the neck base 321 due to excessive bending of the neck T1, so that the neck T1 has better bending strength and good bending flexibility, so as to better adapt to the teeth The necessary elastic deformation of the brush bar 20 when the intermediate brush 100 is in use. Those skilled in the art can understand that, in some embodiments, the neck rubber sleeve 33 can also be integrally injection-molded with the handle shell 31 to achieve the same function as above.

As shown in Figure 3, in some embodiments, the length of the neck rubber sleeve 33 formed of soft rubber material can be set to be greater than the length of the neck base 321, so that the neck rubber sleeve 33 can cover the entire neck base 321 at the same time And part of the surface of the brush holder 20. The advantage of this design is that if the brush head 10 accidentally moves along the brush rod 20 during the use of the interdental brush 100, the part L of the tube neck rubber sleeve 33 covering the brush rod 20 is due to its soft rubber. The characteristic can play a good buffering effect on the brush head 10, prevent the hard neck base 321 or the brush head 10 from impacting the gums (or teeth), and play a better role in protecting the user's oral cavity.

Please continue to refer to Fig. 4, the transition between the neck base 321 of the handle core 32 and the holding base 322 is an arc groove 323, and the end edge of the neck rubber sleeve 33 away from the nozzle P is fitted in the arc groove 323, The shell 31 abuts against the edge of the tube neck rubber sleeve 33 fitted in the arc groove 323 to form an arc shape on the outer surface of the brush handle 30 at the joint between the tube neck T1 and the handle T2 of the handle core 31 the transition surface. The above-mentioned design is conducive to increasing the connection strength of the neck rubber sleeve 33 on the neck base 321 and the strength of the root of the neck T1 away from the nozzle P, so as to avoid being located on the neck T1 during the use of the interdental brush 100. Stress concentration is formed at the connecting portion with the handle shell 31 , which can effectively reduce the occurrence of breakage of the tube neck T1 .

As shown in FIG. 3 , the pipe R1 extends along the length direction of the neck base 321 toward one side of the holding base 322 . The radial dimension D2 of the pipe R1 is greater than the radial dimension D1 of the brush rod 20, so as to avoid the gap between the inner wall surface of the pipe R1 and the outer surface of the brush rod 20 when the brush rod 20 undergoes large deflection and bending deformation. The amount of compensation for the deformation of the neck T1 in the radial direction reduces the cracking of the neck T1 so that the neck T1 can always remain effective. In the embodiment of the present application, the gap between the brush bar 20 and the pipe R1 is designed to be 0.2 mm to 0.3 mm, which can prevent the tube neck T1 from cracking while ensuring the brush bar 20 has optimal bending flexibility.

As shown in Figure 4, the holding base 322 of the handle 32 is covered by the handle shell 31, and the holding base 322 is provided with the above-mentioned lumen R2 communicating with the pipeline R1 along the length direction of the handle 32, and the lumen R2 serves as a tooth. The fixing structure of the inter-brush 100 is used to fix the above-mentioned brush bar 20 . Specifically, the second end of the brush rod 20 can be inserted and fixed in the lumen R2 after passing through the nozzle P of the neck T1 and the pipe R1 .

The above content is a further detailed description of the utility model in combination with specific/preferred embodiments, and it cannot be determined that the specific implementation of the utility model is limited to these descriptions. For those of ordinary skill in the art, without departing from the concept of the utility model, some modifications and improvements can be made, and these all belong to the protection scope of the utility model.

Claims (7)

1. An interdental brush, comprising:

a brush head and a brush rod; the two ends of the brush rod are respectively the tail end of the first brush rod and the tail end of the second brush rod; the brush head is arranged at the tail end of the first brush rod;

one end of the brush handle is a pipe neck provided with a pipe orifice, the pipe neck is provided with a pipeline communicated with the pipe orifice, and a pipe cavity communicated with the pipeline is formed inside the brush handle; the tail end of the second brush rod is inserted into the pipe cavity through the pipe orifice and the pipeline;

the wall thickness of the tube neck close to the tube opening is 0.2mm to 0.5mm.

2. The interdental brush of claim 1 wherein said neck has a wall thickness of 0.3mm proximal to said nozzle.

3. The interdental brush of claim 1, wherein a radial dimension of the conduit is greater than a radial dimension of the brush bar; the clearance between the inner wall of the pipeline and the outer surface of the brush rod is set to be 0.2mm to 0.3mm.

4. The interdental brush of claim 1, wherein the handle comprises a handle shell, the handle shell being formed of a soft plastic material;

the handle core is made of hard rubber materials; the handle core comprises a holding base body, and the handle shell is sleeved on the holding base body to form a holding part of the brush handle.

5. The interdental brush of claim 4 wherein said neck comprises a neck base and a neck gum cover injection molded from a soft plastic, said neck gum cover being disposed over said neck base; the neck base body is the part of the handle core extending out of the handle shell.

6. The interdental brush of claim 5 wherein said neck cement sheath has a length greater than a length of said neck base such that said neck cement sheath covers said neck base and a portion of a surface of said brush stem.

7. The interdental brush of claim 5, wherein said grip base is provided with said lumen for inserting and securing said distal end of said second brush rod, said lumen extending within said grip base along a length of said stem in a direction away from said neck.

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