Electric toothbrush head with high cleaning efficiency

Abstract

The electric toothbrush head comprises a head neck part, a head end part and a rotating plate, the upper end of the head neck part is detachably connected with the lower end of the head end part, the head end part is hollow, the lower end of the head end part is open, and a through hole communicated with an inner cavity of the head end part is formed in the center of the front face of the head end part. The rotating plate covers the through hole and is rotationally connected with the side wall of the through hole, a plurality of first bristles are evenly arranged on the front face of the head end part, a plurality of second bristles are arranged on the front face of the rotating plate, and the first bristles and the second bristles are located on the same side of the head end part and are consistent in length; a bottom cavity is formed in the upper end of the head and neck part, and a motor is arranged in the bottom cavity. According to the tooth cleaning device, the motor can work to drive the rotating shaft and the driving bevel gear to rotate, the driving bevel gear drives the driven bevel gear to rotate, and the rotating plate rotates along with the driving bevel gear, so that the second bristles can do circular motion on the basis of linear reciprocating motion, gaps and break angles of teeth can be better cleaned, and the tooth cleaning efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of electric toothbrushes, in particular to an electric toothbrush head with high cleaning efficiency. Background Art

[0002] An electric toothbrush vibrates the brush head through the rapid rotation or vibration of the electric motor, instantly breaking down the toothpaste into fine foam and deeply cleaning the gaps between teeth. At the same time, the vibration of the bristles can promote blood circulation in the oral cavity and have a massage effect on the gum tissue. The structure of an electric toothbrush includes a handle and a toothbrush head. The toothbrush head and the handle are detachably connected. A motor for moving the electric toothbrush head is provided in the handle. The motor drives the toothbrush head to move so that the toothbrush head can clean the teeth.

[0003] The existing toothbrush heads all move in a linear reciprocating motion, contacting the teeth and cleaning them. However, at the corners and bends of the teeth, the linear motion of the bristles is difficult to fully contact the corners and bends of the teeth, resulting in a poor cleaning effect. If other motion directions are added on the basis of the linear motion of the bristles, the cleaning efficiency of the toothbrush head will undoubtedly be enhanced.

[0004] In view of the above situation, the present utility model is proposed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an electric toothbrush head with high cleaning efficiency, so as to solve the problems mentioned in the background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions.

[0007] The utility model provides an electric toothbrush head with high cleaning efficiency, comprising a head neck, a head end and a rotating plate, wherein the upper end of the head neck is detachably connected to the lower end of the head end, the head end is hollow inside and the lower end is open, a through hole communicating with the inner cavity of the head end is arranged at the center of the front of the head end, the rotating plate covers the through hole and is rotatably connected to the side wall of the through hole, a plurality of first bristles are evenly arranged on the front of the head end, a plurality of second bristles are arranged on the front of the rotating plate, the first bristles and the second bristles are located on the same side of the head end and have the same length;

[0008] The upper end of the head and neck is provided with a bottom cavity, in which a motor is provided, the driving shaft of the motor is vertically upward and connected to a rotating shaft through a coupling, the rotating shaft is vertically located in the inner cavity of the head and neck, and the upper end of the rotating shaft is plugged into the inner top surface of the head end;

[0009] A driving bevel gear is arranged on the rotating shaft, a driven bevel gear is arranged on the back side of the rotating plate, and the driving bevel gear meshes with the driven bevel gear.

[0010] Preferably, an axle seat is provided on the inner top surface of the head end portion, a mounting hole is provided on the lower surface of the axle seat, and the upper end of the rotating shaft is plugged into the mounting hole.

[0011] Preferably, the rotating plate is circular, and a circle of slots is provided on the side of the rotating plate, and the width of the slots is consistent with the wall thickness of the through hole.

[0012] Preferably, the upper end of the head and neck is provided with a plurality of grooves, the lower end of the head end is provided with a plurality of plug-in blocks, the surface of the plug-in blocks is provided with sealing gaskets, and the plug-in blocks are connected to the grooves by plugging and unplugging.

[0013] Preferably, the first bristles are evenly distributed along the length and width directions of the front side of the head end, and the second bristles are distributed in multiple layers on the surface of the rotating plate from the center to the edge of the rotating plate, and some of the first bristles are located on the periphery of the second bristles.

[0014] Preferably, the rotating shaft is located at the inner center of the head end, and the driven bevel gear is arranged at the back edge of the rotating plate.

[0015] Preferably, the upper surface of the head end is semicircular.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] When the head neck and the head end are connected to each other, the top end of the rotating shaft is just inserted into the shaft seat, the active bevel gear is just meshed with the driven bevel gear, the motor can drive the rotating shaft and the active bevel gear to rotate, the active bevel gear drives the driven bevel gear to rotate, and the rotating plate rotates accordingly, so that the second bristles can make circular motion on the basis of linear reciprocating motion, which can better clean the gaps and corners of teeth, and the cleaning efficiency of teeth is higher;

[0018] When the lower end of the head and neck is connected to the handle of the electric toothbrush, the head and neck and the head end can perform linear motion, that is, the first bristles and the second bristles perform reciprocating linear motion to clean the teeth. On this basis, the second bristles can also perform circular motion for a better cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a side view of the head and neck of the utility model;

[0020] Figure 2 It is a three-dimensional diagram of the head and neck of the utility model;

[0021] Figure 3 It is a three-dimensional diagram of the head end of the utility model;

[0022] Figure 4 It is a three-dimensional diagram of the second bristle of the utility model;

[0023] Figure 5 It is a three-dimensional diagram of the active bevel gear of the utility model;

[0024] Figure 6 It is a three-dimensional diagram of the rotating plate of the utility model.

[0025] In the figure: 1, head and neck; 11, bottom cavity; 12, motor; 13, rotating shaft; 14, driving bevel gear; 2, head end; 21, through hole; 22, rotating plate; 221, slot; 23, shaft seat; 24, driven bevel gear; 3, first bristles; 4, second bristles. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] like Figure 1-6 As shown, an electric toothbrush head with high cleaning efficiency comprises a head neck 1, a head end 2 and a rotating plate 22, the upper end of the head neck 1 is detachably connected to the lower end of the head end 2, the head end 2 is hollow inside and open at the lower end, a through hole 21 communicating with the inner cavity of the head end 2 is arranged at the center of the front of the head end 2, the rotating plate 22 covers the through hole 21 and is rotatably connected to the side wall of the through hole 21, that is, the rotating plate 22 can rotate in the through hole 21, a plurality of first bristles 3 are evenly arranged on the front of the head end 2, a plurality of second bristles 4 are arranged on the front of the rotating plate 22, the first bristles 3 and the second bristles 4 are located on the same side of the head end 2 and have the same length, the first bristles 3 and the second bristles 4 are in contact with the teeth together to clean the tooth surface;

[0029] A bottom cavity 11 is provided at the upper end of the head and neck portion 1, and a motor 12 is provided in the bottom cavity 11. The driving shaft of the motor 12 is vertically upward and is connected to a rotating shaft 13 through a coupling. The rotating shaft 13 is vertically located in the inner cavity of the head and neck portion 1. The upper end of the rotating shaft 13 is plugged into the inner top surface of the head end portion 2. When the motor 12 is working, it can drive the rotating shaft 13 to rotate.

[0030] A driving bevel gear 14 is disposed on the rotating shaft 13 , and a driven bevel gear 24 is disposed on the back of the rotating plate 22 . The driving bevel gear 14 meshes with the driven bevel gear 24 , and the driving bevel gear 14 can rotate along with the rotating shaft 13 , and the driving bevel gear 14 drives the driven bevel gear 24 to rotate.

[0031] An axle seat 23 is provided on the inner top surface of the head end portion 2, and a mounting hole is provided on the lower surface of the axle seat 23. The upper end of the rotating shaft 13 is plugged into the mounting hole. The axle seat 23 supports the rotating shaft 13, and the rotation of the rotating shaft 13 is relatively stable.

[0032] The rotating plate 22 is circular, and a circle of slots 221 are arranged on the side of the rotating plate 22 . The width of the slots 221 is consistent with the wall thickness of the through hole 21 , that is, the rotating plate 22 performs a circular motion just at the position of the through hole 21 .

[0033] The upper end of the head and neck portion 1 is provided with a plurality of grooves, and the lower end of the head end portion 2 is provided with a plurality of plug-in blocks. Sealing pads are provided on the surfaces of the plug-in blocks, and the plug-in blocks are connected to the grooves by plugging and unplugging.

[0034] The first bristles 3 are evenly distributed along the length and width directions of the front side of the head end 2 at equal intervals. The second bristles 4 are distributed in multiple layers on the surface of the rotating plate 22 from the center of the rotating plate 22 to the edge of the rotating plate 22, and some of the first bristles 3 are located on the periphery of the second bristles 4.

[0035] The rotating shaft 13 is located at the inner center of the head end portion 2 , and the driven bevel gear 24 is arranged at the back edge of the rotating plate 22 .

[0036] The upper surface of the head end 2 is semicircular, which can protect the tooth oral environment.

[0037] In summary: when the head and neck 1 and the head end 2 are connected to each other, the top end of the rotating shaft 13 is just inserted into the shaft seat 23, and the active bevel gear 14 is just meshed with the driven bevel gear 24. The motor 12 can drive the rotating shaft 13 and the active bevel gear 14 to rotate, and the active bevel gear 14 drives the driven bevel gear 24 to rotate, and the rotating plate 22 rotates accordingly, so that the second bristles 3 can make a circular motion on the basis of the linear reciprocating motion, and can better clean the gaps and corners of the teeth, and the cleaning efficiency of the teeth is higher;

[0038] When the lower end of the head and neck 1 is connected to the handle of the electric toothbrush, the head and neck 1 and the head end can perform linear motion, that is, the first bristles 3 and the second bristles 4 perform reciprocating linear motion to clean the teeth. On this basis, the second bristles 4 can also perform circular motion for a better cleaning effect.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electric toothbrush head with high cleaning efficiency, characterized in that: The invention comprises a head and neck portion (1), a head end portion (2) and a rotating plate (22), wherein the upper end of the head and neck portion (1) is detachably connected to the lower end of the head end portion (2), the head end portion (2) is hollow inside and open at the lower end, a through hole (21) communicating with the inner cavity of the head end portion (2) is arranged at the center of the front side of the head end portion (2), the rotating plate (22) covers the through hole (21) and is rotatably connected to the side wall of the through hole (21), a plurality of first bristles (3) are evenly arranged on the front side of the head end portion (2), a plurality of second bristles (4) are arranged on the front side of the rotating plate (22), the first bristles (3) and the second bristles (4) are located on the same side of the head end portion (2) and have the same length; A bottom cavity (11) is provided at the upper end of the head and neck portion (1), a motor (12) is provided in the bottom cavity (11), a driving shaft of the motor (12) is vertically upward and is connected to a rotating shaft (13) via a coupling, the rotating shaft (13) is vertically located in the inner cavity of the head and neck portion (1), and the upper end of the rotating shaft (13) is plugged into the inner top surface of the head end portion (2); A driving bevel gear (14) is arranged on the rotating shaft (13), a driven bevel gear (24) is arranged on the back side of the rotating plate (22), and the driving bevel gear (14) meshes with the driven bevel gear (24).

2. An electric toothbrush head with high cleaning efficiency according to claim 1, characterized in that: The inner top surface of the head end portion (2) is provided with an axle seat (23), the lower surface of the axle seat (23) is provided with a mounting hole, and the upper end of the rotating shaft (13) is plugged into the mounting hole.

3. The electric toothbrush head with high cleaning efficiency according to claim 1, characterized in that: The rotating plate (22) is circular, and a circle of clamping grooves (221) are arranged on the side surface of the rotating plate (22), and the width of the clamping grooves (221) is consistent with the wall thickness of the through hole (21).

4. The electric toothbrush head with high cleaning efficiency according to claim 1, characterized in that: The upper end of the head and neck portion (1) is provided with a plurality of grooves, and the lower end of the head end portion (2) is provided with a plurality of plug-in blocks, the surfaces of the plug-in blocks are provided with sealing gaskets, and the plug-in blocks are connected to the grooves by plugging and unplugging.

5. The electric toothbrush head with high cleaning efficiency according to claim 1, characterized in that: The first bristles (3) are evenly distributed along the length direction and the width direction of the front side of the head end portion (2) at equal intervals, and the second bristles (4) are distributed in multiple layers on the surface of the rotating plate (22) from the center of the rotating plate (22) to the edge of the rotating plate (22), and part of the first bristles (3) are located on the periphery of the second bristles (4).

6. The electric toothbrush head with high cleaning efficiency according to claim 1, characterized in that: The rotating shaft (13) is located at the inner center of the head end (2), and the driven bevel gear (24) is arranged at the back edge of the rotating plate (22).

7. The electric toothbrush head with high cleaning efficiency according to claim 1, characterized in that: The upper surface of the head end portion (2) is semicircular.

Images