CN201727600U

CN201727600U - Electric toothbrush head

Info

Publication number: CN201727600U
Application number: CN2010202994911U
Authority: CN
Inventors: 何钢
Original assignee: Individual
Current assignee: Changzhou Campus of Hohai University
Priority date: 2010-08-21
Filing date: 2010-08-21
Publication date: 2011-02-02
Anticipated expiration: 2020-08-21

Abstract

The utility model provides an electric toothbrush head with two motion ways, which comprises a toothbrush handle lower cover, a toothbrush handle upper cover, a connecting rod, a front toothbrush head, a rear toothbrush head and a transverse rotary shaft, wherein the front toothbrush head is assembled on a vertical rotary shaft of the toothbrush handle lower cover, and the rear toothbrush head is assembled on the transverse rotary shaft arranged on the toothbrush handle upper cover; a cylinder push rod, an oblique kink, and a vertical kink which is perpendicular to the toothbrush surface of the front toothbrush head are arranged on the front end of the connecting rod; grooves are respectively arranged on convex blocks at two sides of the bottom of the rear toothbrush head; the connecting rod keeps in moving connection with the rear toothbrush head through the cylinder push rod and the grooves, and keeps in moving connection with the front toothbrush head through the vertical kink; the connecting rod is driven by a driven device on an electric toothbrush handholding component to do reciprocating rectilinear motion, so as to push the rear toothbrush head and the front toothbrush head to respectively swing around the transverse rotary shaft and the vertical rotary shaft. The two toothbrush heads respectively conduct two different motions, so as to be favorable to finishing cleaning works for different positions of teeth from different angles, so the electric toothbrush head has high tooth cleaning efficiency.

Description

Electric toothbrush head

Technical field

This utility model relates to the electric tooth brushing brush, especially a kind of brush head device for electronic toothbrush with multiple forms of motion brush.

Background technology

Compare with ordinary toothbrush, electric toothbrush by fast rotational or rectilinear motion, makes brush produce dither by motor-driven, can realize the cleaning of tooth fast, thereby be article of everyday use comparatively salable in the electric toothbrush of many American-European countries, in China's electric toothbrush also among constantly applying.At present the patent documentation of relevant electric toothbrush is a lot, but in numerous schemes based on the electric toothbrush of single brush single movement form, the bristle motion form is simpler, cleaning of teeth efficient is not high.Compare with the electric toothbrush of single movement form, the many brushes electric toothbrush that has multiple forms of motion simultaneously has higher oral cavity cleaning efficient, can more fully clean tooth, wide application prospect is arranged, thereby the more diversified electric toothbrush with multiple forms of motion of form remains the product of people's expectation.

Summary of the invention

The purpose of this utility model be to provide a kind of simple and reliable for structure, have two kinds of forms of motion brush head device for electronic toothbrush.The present invention is achieved by the following technical solutions: a kind of electric toothbrush head with two kinds of forms of motion, described electric toothbrush head comprise brush holder lower cover, brush holder loam cake, connecting rod, preceding brush, back brush, laterally rotating shaft, upper support piece, lower support piece; The brush holder lower cover has vertical rotating shaft in the side away from the electric toothbrush handheld component, and preceding brush is assembled in the vertical rotating shaft; Laterally rotating shaft is installed to the hole that covers on the brush holder and last, and back brush is installed in the horizontal rotating shaft; Described connecting rod supports by upper and lower back-up block, and upper support piece, lower support piece are assembled to respectively under brush holder loam cake and the brush holder and cover, and described brush holder loam cake, brush holder lower cover are secured together by welding or other modes.

Has longitudinal axis on the described connecting rod, also have the cylindric push rod perpendicular with longitudinal axis, connecting rod a side of the close preceding brush of cylindric push rod also have parallel with the brush finish of preceding brush and with the acutangulate inclination bending of longitudinal axis and with the perpendicular vertical bending of the brush finish (41) of preceding brush; The both sides of the bottom of described back brush have two projections, have groove respectively on two projections; Connecting rod keeps being dynamically connected by cylindric push rod, groove and back brush, and the hole of connecting rod on vertical crooked place and preceding brush keeps being dynamically connected.

The brush head device that this utility model proposed is connected with the electric toothbrush handheld component, described connecting rod is linear reciprocating motion under the driving of the driving device of electric toothbrush handheld component, makes attached to the bristle on the brush of back along brushing teeth perpendicular to the direction of teeth space thereby cylindric push rod carries out swing by groove promotion back brush around horizontal rotating shaft; Brush swung around vertical rotating shaft before vertical bending on the while connecting rod drove, thereby the bristle on the preceding brush of drive is finished the cleaning of tooth, finishes the cleaning of tooth different parts jointly by the cooperation of two brushes.

This utility model advantage is: change the linear reciprocating motion of connecting rod into by the motor-driven intermediate transmission mechanism after, when not adding other drive disk assemblies, before just realizing simultaneously brush and afterwards brush respectively around different shaft swings, can move from different perspectives at diverse location, drive the bristle that is fixed on the brush and come cleaning teeth; Simple and reliable for structure, the cost of electric toothbrush is low, and the synergy of two brushes, and the efficient of cleaning teeth is higher.

Description of drawings

Fig. 1 is the member exploded perspective axonometric chart of brush head device for electronic toothbrush.

Fig. 2 is the assembling perspective elevation of connecting rod and preceding brush, back brush.

Fig. 3 is the perspective elevation of connecting rod.

Fig. 4 is the perspective elevation of back brush.

Fig. 5 is the bottom view of preceding brush.

Fig. 6 is the bottom view of preceding brush and connecting rod three positions in motor process.

The specific embodiment

Below in conjunction with accompanying drawing enforcement of the present utility model is described further.

This utility model can be implemented by structure shown in Figure 1: a kind of brush head device for electronic toothbrush with two kinds of forms of motion comprises brush holder lower cover 1, brush holder loam cake 2, connecting rod 3, preceding brush 4, back brush 5, laterally rotating shaft 6, upper support piece 7, lower support piece 8; Described connecting rod 3 is to support by upper support piece 7, the lower support piece 8 that is installed between brush holder loam cake 2 and the brush holder lower cover 1.As Fig. 2, shown in Figure 3, the cross section of described connecting rod 3 is circular, has longitudinal axis 34, have the cylindric push rod 31 perpendicular with longitudinal axis 34 in the front portion of connecting rod 3, and the front end of cylindric push rod 31 also have parallel with the brush finish 41 of preceding brush 4 and with the angled inclination bending 33 of the longitudinal axis 34 of connecting rod 3 and with the perpendicular vertical bending 32 of the brush finish 41 of preceding brush 4.As Fig. 2, shown in Figure 4, the both sides of the bottom of described back brush 5 have

projection

54,55 respectively, have

groove

51 and 52 respectively on the

projection

54,55; Above

groove

51,52, also has through hole 53; As Fig. 2, shown in Figure 5, described preceding brush 4 has center hole 43 and hole 42, and the cross sectional shape in hole 42 is to be connected two tangent with it respectively semicircles of two ends by two sections parallel lines to combine.

As shown in Figure 1 and Figure 2, connecting rod 3 keeps being dynamically connected by cylindric push rod 31,

groove

51,52 and back brush 5, and connecting rod 3 keeps being dynamically connected by vertical bending 32 and hole 42 and preceding brush 4; Have vertical rotating shaft 11 on the described brush holder lower cover 1, preceding brush 4 is assembled on the brush holder lower cover 1 by center hole 43 and vertical rotating shaft 11; Laterally rotating shaft 6 is installed on the hole 21 and 22 on the brush holder loam cake 2, and back brush 5 is installed in the horizontal rotating shaft 6.

As Fig. 3, shown in Figure 6, the stroke when connecting rod 3 carries out linear reciprocating motion is s, tilt bending 33 and 34 one-tenth angles of longitudinal axis, and the length of the bending 33 of tilting is lThe cross sectional shape in the hole 42 on the preceding brush 4 is connected two semicircles that the tangent with it radius in two ends is slightly larger than the section radius of connecting rod 3 by two sections straight lines as shown in Figure 5, and the distance at center hole 43 centers on the center of circle of two semicircles and the preceding brush 4 is respectively aWith bWhen Fig. 6 has provided head that connecting rod 3 is in stroke in the motor process, end and intermediate point position, the particular location of connecting rod 3 and preceding brush 4.The size in the hole 42 on the preceding brush 4 a, bShould satisfy relation:

,

, could guarantee that connecting rod 3 at stroke is sThe reciprocating motion process in, hole on the preceding brush 4 42 does not interfere with connecting rod 3.

This utility model electric toothbrush head work process is: be power source with the motor, do reciprocating linear motion by the intermediate transmission mechanism drivening rod 3 that is positioned at the electric toothbrush handheld component, promote back brush 5 around laterally rotating shaft 6 swings by the cylindric push rod on the connecting rod 3 31, thereby make attached to the bristle on the brush 5 of back along brushing teeth perpendicular to the direction of teeth space; Brush 4 swings around vertical rotating shaft 11 before being driven by the vertical bending on the connecting rod 3 32 simultaneously, the cleaning of tooth is finished in drive attached to the bristle on the preceding brush 4, finish the cleaning of tooth different parts jointly by the cooperation of two brushes, the effect of cleaning is better.

Claims

1. the brush head device for electronic toothbrush with two kinds of forms of motion comprises brush holder lower cover (1), brush holder loam cake (2), connecting rod (3), preceding brush (4), back brush (5), laterally rotating shaft (6); It is characterized in that brush holder lower cover (1) has vertical rotating shaft (11) in the side away from the electric toothbrush handheld component, preceding brush (4) is assembled in the vertical rotating shaft (11); Laterally rotating shaft (6) is installed on the hole (21) and (22) on the brush holder loam cake (2), and back brush (5) is installed in the horizontal rotating shaft (6); Keeping under the driving of driving device of the electric toothbrush handheld component be dynamically connected with connecting rod (3), connecting rod (3) does reciprocating linear motion, and preceding brush (4) and back brush (5) are swung around vertical rotating shaft (11) and horizontal rotating shaft (6) respectively.

2. a kind of brush head device for electronic toothbrush with two kinds of forms of motion as claimed in claim 1 is characterized in that described connecting rod (3) has longitudinal axis (34), also has and the perpendicular cylindric push rod (31) of longitudinal axis (34); The both sides of the bottom of described back brush (5) have projection (54), (55), have groove (51) and (52) on projection (54), (55) respectively; Connecting rod (3) keeps being dynamically connected with back brush (5) by cylindric push rod (31), groove (51), (52); When connecting rod (3) carried out linear reciprocating motion, cylindric push rod (31) promoted back brush (5) by groove (51), (52) and carries out swing around horizontal rotating shaft (6).

3. as claim 1,2 described a kind of brush head device for electronic toothbrush with two kinds of forms of motion, it is characterized in that described connecting rod (3) a side of the close preceding brush (4) of cylindric push rod (31) also have parallel with the brush finish (41) of preceding brush (4) and with the acutangulate inclination bending of longitudinal axis (34) (33) and with the perpendicular vertical bending (32) of the brush finish (41) of preceding brush (4); The hole (42) of connecting rod (3) on vertical bending (32) position and preceding brush (4) keeps being dynamically connected; When connecting rod carried out linear reciprocating motion, brush (4) swung around vertical rotating shaft (11) before vertical bending (32) drove.