Plug-connected toothbrush

Abstract

A plug-connected toothbrush, comprising a brush head (1) and a brush handle (2). Two side cavity walls of an accommodating cavity (10) of the brush head (1) are provided with longitudinal slots (11) for up-down limiting and vertical slots (12) for left-right limiting, a lower cavity wall is provided with a protruding positioning end (13), and a front cavity wall is provided with a protruding column (14) for front-rear limiting; longitudinal columns (21) are formed in two side walls of an insertion end (20) of the front end of the brush handle (2), limiting blocks (22) are provided at the rear ends of the two side walls, an inwardly recessed positioning hole (23) is provided at the front end of a lower surface, and the middle of a front side surface is inwardly recessed to form a transverse positioning slot (24); the insertion end (20) is horizontally inserted into the accommodating cavity (10), the longitudinal columns (21) horizontally move along the longitudinal slots (11), the limiting blocks (22) enter the vertical slots (12), the protruding column (14) is inserted into the transverse positioning slot (24), and the positioning end (13) enters the positioning hole (23), so as to form the three-way fixed plug-connected toothbrush. The brush handle (2) of the plug-connected toothbrush can be reused for a long time, and the brush head (1) is easy to replace.

Description

A plug-in toothbrush Technical Field

[0001] The utility model relates to, in particular to a plug-in toothbrush. Background Art

[0002] Toothbrushes are essential daily necessities. Proper brushing removes plaque and maintains oral hygiene. With the rapid advancement of science and medicine, people's living standards have significantly improved, and awareness of preventive health care has grown. As a result, people are placing increasing emphasis on oral self-care. Consequently, they have increasingly sophisticated requirements for toothbrushes, either replacing them monthly or using the disposable toothbrushes provided by hotels and travel agencies. In these situations, people often replace their entire toothbrush. This approach, however, results in significant waste of resources, generates more household waste, and increases living expenses or hotel operating costs.

[0003] Utility Model Content

[0004] In order to solve one or more of the above problems, the present invention provides a plug-in toothbrush.

[0005] According to one aspect of the present invention, the plug-in toothbrush comprises: a brush head and a brush handle;

[0006] The lower surface of the brush head is provided with a plurality of bristles, and the brush head is provided with a receiving cavity with an open rear side. The two side walls of the receiving cavity are provided with longitudinal grooves for upper and lower limits and vertical grooves for left and right limits. The lower cavity wall of the receiving cavity is provided with a protruding positioning end, and the front cavity wall of the receiving cavity is provided with a convex column for front and rear limits.

[0007] A protruding insertion end is provided at the front end of the brush handle, and the outer contour and size of the insertion end match the inner contour and size of the accommodating cavity. The two side walls of the insertion end form longitudinal columns and the rear ends of the two side walls are provided with limit blocks. The front end of the lower surface of the insertion end is provided with a concave positioning hole, and the middle of the front side surface of the insertion end is concave to form a transverse positioning groove. The insertion end is horizontally inserted into the accommodating cavity, the longitudinal column moves horizontally along the longitudinal groove, the limit block enters the vertical groove, the convex column is inserted into the transverse positioning groove and the positioning end enters the positioning hole, thereby forming a three-way fixed plug-in toothbrush.

[0008] In some embodiments, the vertical groove is an arc groove, and the limiting block is a semicircular prism.

[0009] In some embodiments, the positioning end is a spherical segment-shaped protrusion, and the positioning hole is an arc groove.

[0010] In some embodiments, the protruding column is a triangular prism, and the transverse positioning groove is a triangular opening.

[0011] In some embodiments, the longitudinal grooves are rectangular grooves, and the longitudinal columns are rectangular columns.

[0012] In some embodiments, the lower groove wall of the longitudinal groove is flush with the lower cavity wall of the accommodating cavity, the two longitudinal grooves and the accommodating cavity form a convex groove, and the vertical groove passes through the upper surface of the longitudinal groove;

[0013] The lower surface of the longitudinal column is flush with the lower surface of the insertion end, and the lower surface of the limiting block extends to the upper surface of the longitudinal column.

[0014] In some embodiments, the upper surface of the accommodating cavity is open, and the upper surface of the insertion end and the upper surface of the brush head are flush.

[0015] In some embodiments, a rear end groove is further provided at the lower end of the rear side of the brush head. The rear end groove has the same profile and size as the lower end of the front end of the handle. The front end of the handle is inserted into the rear end groove.

[0016] In some embodiments, the rear end of the handle is further provided with a large-sized weight-reducing hole that passes through the upper and lower surfaces.

[0017] In some embodiments, the brush handle is made of plastic with a certain elasticity.

[0018] The plug-in toothbrush adopts a split brush handle and brush head, which are detachable and plug-in fixed. The brush head can be easily replaced by fixing the brush handle and applying force to the brush head, and the brush handle can be reused. Its beneficial effects are: first, when people replace their toothbrushes, they only need to replace the brush head, and the brush handle can be reused for a long time, which greatly reduces resource waste, reduces the amount of domestic garbage, and reduces people's living expenses or hotel operating costs; second, the device adopts the matching of the lower positioning hole and the positioning end to improve the installation accuracy of the toothbrush; third, the vertical limit is performed by using the longitudinal column and the longitudinal groove that match each other, and the lateral limit is performed by using the limiting block and the vertical groove that match each other; the longitudinal front and rear limit are performed by using the convex column and the lateral positioning groove, the positioning hole and the positioning end that match each other, thereby realizing the three-way fixation of the brush handle, ensuring that the toothbrush is firmly fixed and will not shift or deform during long-term use; fourth, the plug-in structure is simple for users to replace, and is suitable for children, the elderly and the weak groups. The product has wide applicability and is convenient for widespread promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a three-dimensional schematic diagram of a plug-in toothbrush according to an embodiment of the present invention;

[0020] FIG2 is a partial enlarged schematic diagram of the plug-in toothbrush shown in FIG1 ;

[0021] FIG3 is a three-dimensional schematic diagram of the brush head shown in FIG1 ;

[0022] FIG4 is a three-dimensional schematic diagram of the brush handle shown in FIG1 (I);

[0023] FIG5 is a three-dimensional schematic diagram of the brush handle shown in FIG1 (II);

[0024] Brush head 1, accommodating cavity 10, longitudinal groove 11, vertical groove 12, positioning end 13, protrusion 14, rear end groove 15;

[0025] Brush handle 2, insertion end 20, longitudinal column 21, limit block 22, positioning hole 23, transverse positioning groove 24, weight-reducing hole 25, technical curved surface 26; bristles 3. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below with reference to the accompanying drawings. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.

[0027] Figures 1 to 5 schematically illustrate a plug-in toothbrush according to an embodiment of the present invention. As shown in the figures, the plug-in toothbrush comprises: a brush head 1 and a brush handle 2;

[0028] The lower surface of the brush head 1 is provided with a plurality of bristles 3. The brush head 1 is provided with a receiving cavity 10 with an open rear side. The two side walls of the receiving cavity 10 are provided with longitudinal grooves 11 for upper and lower limit and vertical grooves 12 for left and right limit. The lower wall of the receiving cavity 10 is provided with a protruding positioning end 13. The front wall of the receiving cavity 10 is provided with a protruding column 14 for front and rear limit.

[0029] The front end of the brush handle 2 is provided with a protruding insertion end 20, the outer contour and size of the insertion end 20 are matched with the inner contour and size of the accommodating cavity 10, the two side walls of the insertion end 20 form longitudinal columns 21 and the rear ends of the two side walls are provided with limit blocks 22, the front end of the lower surface of the insertion end 20 is provided with a concave positioning hole 23, and the middle of the front side of the insertion end 20 is concave to form a transverse positioning groove 24. The insertion end 20 is horizontally inserted into the accommodating cavity 10, the longitudinal column 21 moves horizontally along the longitudinal groove 11, the limit block 22 enters the vertical groove 12, the convex column 14 is inserted into the transverse positioning groove 24 and the positioning end 13 enters the positioning hole 23, thereby forming a three-way fixed plug-in toothbrush.

[0030] The plug-in toothbrush adopts a split brush handle 2 and a brush head 1. The brush handle 2 and the brush head 1 are detachably plugged in and fixed. The brush head 1 can be easily replaced by fixing the brush handle 2 and applying force to the brush head 1. The beneficial effects are: first, when people replace their toothbrushes, they only need to replace the brush head 1, and the brush handle 2 can be reused for a long time, which greatly reduces resource waste, reduces the amount of domestic waste, and reduces people's living expenses or hotel operating costs; second, the device adopts a lower positioning hole 23 and a positioning end 13 to cooperate, thereby improving the installation accuracy of the toothbrush; Third, the longitudinal column 21 and the longitudinal groove 11 cooperate with each other for vertical limiting, and the limiting block 22 and the vertical groove 12 cooperate with each other for lateral limiting; the convex column 14 and the lateral positioning groove 24, the positioning hole 23 and the positioning end 13 cooperate with each other for longitudinal front and rear limiting, thereby realizing three-way fixation of the brush handle 2, ensuring that the toothbrush is firmly fixed and will not shift or deform during long-term use; fourth, the plug-in structure is easy for users to replace, and can be suitable for children, the elderly and weak groups. The product has a wide applicability and is convenient for widespread promotion.

[0031] Preferably, the vertical groove 12 is a circular arc groove, and the stop block 22 is a semicircular prism, and the contour dimensions of the circular arc groove and the semicircular prism are the same. The beneficial effect is that the vertical groove 12 and the stop block 22 can be inserted gently and gradually, effectively reducing the force.

[0032] Preferably, the positioning end 13 is a spherical segment-shaped protrusion, and the positioning hole 23 is a circular arc groove, and the contour dimensions of the spherical segment-shaped protrusion and the circular arc groove are the same. Its beneficial effect is that the positioning end 13 and the positioning hole 23 of this arrangement can be inserted softly and gradually, effectively reducing the force.

[0033] Preferably, the protrusion 14 is a triangular prism, the transverse positioning groove 24 is a triangular opening, and the triangular prism and the triangular notch have the same outline size. The beneficial effect is that the triangular opening and the triangular prism are easy to process, have a good positioning effect, and are plugged in without resistance.

[0034] Preferably, the longitudinal groove 11 is a rectangular groove, and the longitudinal column 21 is a rectangular column, and the outline dimensions of the rectangular groove and the rectangular column are the same. The beneficial effect is that the cooperation of the rectangular groove and the rectangular column has upper and lower, left and right limit functions, and at the same time plays a guiding role during installation.

[0035] Preferably, the lower groove wall of the longitudinal groove 11 is flush with the lower cavity wall of the accommodating cavity 10, the two longitudinal grooves 11 and the accommodating cavity 10 form a convex groove, and the vertical groove 12 passes through the upper surface of the longitudinal groove 11;

[0036] The lower surface of the longitudinal column 21 is flush with the lower surface of the insertion end 20, and the lower surface of the limiting block 22 extends to the upper surface of the longitudinal column 21. The beneficial effect is that the structure is easy to process and has a better limiting effect.

[0037] Preferably, the upper surface of the accommodating cavity 10 is open, and the upper surface of the insertion end 20 is flush with the upper surface of the brush head 1. The beneficial effect is that the upper end open structure facilitates product processing.

[0038] Preferably, a rear end groove 15 is further provided at the lower end of the rear side of the brush head 1. The rear end groove 15 has the same profile and size as the lower end of the front end of the handle 2, and the front end of the handle 2 is inserted into the rear end groove 15. The beneficial effect is that the rear end groove 15 further plays a role in limiting the rear end.

[0039] Preferably, the rear end of the handle 2 is also provided with a large-sized weight-reducing hole 25 that passes through the upper and lower surfaces; the beneficial effect is that the weight-reducing hole 25 reduces the use of materials, reduces the weight of the handle 2, and can also achieve an aesthetic effect.

[0040] The handle 2 is provided with a process curved surface 26 for easy gripping by a human hand. Its beneficial effect is that the process curved surface 26 can play a better applicability and improve the comfort of the user.

[0041] Preferably, the brush handle 2 is made of a plastic material having a certain elasticity. The beneficial effect is that the selected material further reduces the difficulty of installation.

[0042] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A plug-in toothbrush, characterized in that: include: A brush head (1) and a brush handle (2); a plurality of bristles (3) are provided on the lower surface of the brush head (1); the brush head (1) is provided with a accommodating cavity (10) with an open rear side; the cavity walls on both sides of the accommodating cavity (10) are provided with longitudinal grooves (11) for upper and lower limit and vertical grooves (12) for left and right limit; the lower cavity wall of the accommodating cavity (10) is provided with a protruding positioning end (13); the front cavity wall of the accommodating cavity (10) is provided with a convex column (14) for front and rear limit; the front end of the brush handle (2) is provided with a protruding insertion end (20); the outer contour and size of the insertion end (20) match the inner contour and size of the accommodating cavity (10); the insertion end (20) is provided with a protruding positioning end (13); ... The two side walls of the insertion end (20) form longitudinal columns (21) and the rear ends of the two side walls are provided with limit blocks (22); the front end of the lower surface of the insertion end (20) is provided with a concave positioning hole (23); the middle of the front side surface of the insertion end (20) is concave to form a transverse positioning groove (24); the insertion end (20) is horizontally inserted into the accommodating cavity (10), the longitudinal column (21) moves horizontally along the longitudinal groove (11), the limit blocks (22) enter the vertical groove (12), the convex column (14) is inserted into the transverse positioning groove (24), and the positioning end (13) enters the positioning hole (23), thereby forming a three-way fixed plug-in toothbrush.

2. A plug-in toothbrush according to claim 1, characterized in that: The vertical groove (12) is a circular arc groove, and the limiting block (22) is a semicircular prism.

3. A plug-in toothbrush according to claim 1, characterized in that: The positioning end (13) is a spherical segment-shaped protrusion, and the positioning hole (23) is a circular arc groove.

4. A plug-in toothbrush according to claim 1, characterized in that: The protruding column (14) is a triangular prism, and the transverse positioning groove (24) is a triangular opening.

5. A plug-in toothbrush according to claim 1, characterized in that: The longitudinal groove (11) is a rectangular groove, and the longitudinal column (21) is a rectangular column.

6. A plug-in toothbrush according to claim 5, characterized in that: The lower groove wall of the longitudinal groove (11) is flush with the lower cavity wall of the accommodating cavity (10), and the vertical groove (12) passes through the upper surface of the longitudinal groove (11); The lower surface of the longitudinal column (21) is flush with the lower surface of the insertion end (20), and the The lower surface of the limiting block (22) extends to the upper surface of the longitudinal column (21).

7. A plug-in toothbrush according to claim 1, characterized in that: The upper surface of the accommodating cavity (10) is open, and the upper surface of the insertion end (20) and the upper surface of the brush head (1) are arranged flush.

8. A plug-in toothbrush according to claim 1, characterized in that: The lower end of the rear side of the brush head (1) is further provided with a rear end groove (15), the rear end groove (15) and the lower end of the front end of the handle (2) have the same profile and size, and the front end of the handle (2) is inserted into the rear end groove (15).

9. A plug-in toothbrush according to claim 1, characterized in that: The rear end of the handle (2) is also provided with a large-sized weight-reducing hole (25) that passes through the upper and lower surfaces.

10. The plug-in toothbrush according to claim 1, characterized in that: The brush handle (2) is made of plastic with a certain elasticity.

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