CN2684788Y

CN2684788Y - Electric toothbrush

Info

Publication number: CN2684788Y
Application number: CN 03276886
Authority: CN
Inventors: 黄邦俊
Original assignee: Truly Electronics Manufacturing Ltd
Current assignee: Truly Electronics Manufacturing Ltd
Priority date: 2003-07-16
Filing date: 2003-07-16
Publication date: 2005-03-16
Anticipated expiration: 2013-07-16

Abstract

The utility model relates to an electric toothbrush, comprising a toothbrush body (9), and a toothbrush handle (8) which is movably buckled with the top end of the toothbrush body (9). The end part of the toothbrush handle (8) is movably connected with a rotating toothbrush head (7). A shifting lever component (6) which is used for transferring power is arranged between the eccentric mechanism of a speed changing gear set and the rotating toothbrush head (7). A waterproof ring (4) is sheathed on the middle segment of the shifting lever component (6), and the waterproof ring (4) is fixed on the interface position of the toothbrush body (9) and the toothbrush handle (8). The motor (1) of the inner cavity of the toothbrush body (9) drives the eccentric mechanism of the speed changing gear set to move. The eccentric mechanism drives one end of the shifting lever component (6) to make the shifting lever component (6) swing from left to right by accepting the waterproof ring (4) as a fulcrum, and the other end of the shifting lever component (6) pushes the rotating toothbrush head (7) to to-and-fro rotate in a positive and a negative directions. The to and fro rotating angle of the rotating toothbrush head of the electric toothbrush of the utility model is larger, and thus, the efficiency of brushing teeth is enhanced.

Description

Electric toothbrush

Technical field this utility model relates to daily electric toothbrush.

The electric toothbrush of background technology available technology adopting rotation, No. 5625916 patents as the U.S., the disclosed technical scheme of this patent is, be installed in the intravital motor of toothbrush shell and drive the rotating shaft rotation, the terminal part of countershaft is bent to form eccentric stiffener, promotes head toothbrushes with this eccentric stiffener and comes back rotation.Because the volume of electric toothbrush is generally not too large, therefore come the stroke of back rotation generally shorter by driving head toothbrushes with the in-plant eccentric stiffener of head toothbrushes, therefore the work efficiency of electric toothbrush is affected.

The summary of the invention the technical problems to be solved in the utility model provides a kind of simple and reliable for structure, head toothbrushes and rotates back and forth the bigger electric toothbrush of angle.

This utility model is taked following technical scheme: design a kind of electric toothbrush, comprising: the change-speed gearing group on the motor of toothbrush body and inner chamber thereof and the motor power output shaft, and this change-speed gearing group is provided with eccentric stiffener; With the handle of toothbrush body top active buckle, the end of this handle and rotary toothbrush head flexibly connect; Also comprise: the driving lever assembly between change-speed gearing group eccentric stiffener and rotary toothbrush head in order to transferring power, stage casing socket one water proof ring of this driving lever assembly, this water proof ring is fixed on the seam of toothbrush body and handle; Described motor drives the eccentric mechanism movement of described change-speed gearing group, and it is that fulcrum swings with the water proof ring that the end that eccentric stiffener is stirred the driving lever assembly makes the driving lever assembly, and the other end of driving lever assembly promotes the forward and reverse reciprocal rotation of rotational head.Because the total length of driving lever assembly is longer, fulcrum is positioned at the centre of driving lever assembly, so the clutch end of driving lever assembly can have swing by a relatively large margin, the also inevitable obviously increase of the stroke of the left-right rotation of the rotary toothbrush head that is driven by it.

Described driving lever assembly comprises slide bar and connecting rod, and slide bar has the bulb front end, and the back side of rotary toothbrush head is provided with opening chute backward, corrects before the bulb of described slide bar and drops in this chute; The hole internal fixation that inserts the leading section of connecting rod behind the centre bore of water proof ring is passed in the rear end of slide bar; The rearward end of connecting rod has a groove, and the driven gear of described change-speed gearing group is provided with eccentric shaft, and this eccentric shaft drops in the groove of connecting rod rearward end, makes the power from the change-speed gearing group be passed to connecting rod.

The center, the back side of described rotary toothbrush head is convexly equipped with a steel axle, this steel axle is nested in the locating hole of handle after passing the centre bore of rotary sleeve together, after putting in place, socket is stuck in the draw-in groove on steel axle top, the rotational head back side with an E shape meson, rotational head is draped is positioned on the handle, and can do forward and reverse rotation around the axle center of steel axle.This structure has realized that the rotary toothbrush head is connected with the rotary moveable of handle.

The zone, stage casing of described handle is implanted with bristles and constitutes the manual toothbrush head, head is provided with the locating hole that is used for fixing rotational head, tail end is provided with the location buckle that cooperates with toothbrush body top, handle is inserted on the cooperation position of toothbrush body along the axle center, be inserted into a buckle of back handle tail end and be stuck on one's body the toothbrush, its handle is fixed on one's body the toothbrush.Therefore, this electric toothbrush contains two head toothbrushes, and one is the manual toothbrush head identical with general toothbrush, and one is electric toothbrush head.This also is one of this utility model unique technique feature.

There is a directed square column described connecting rod end, and this square column makes the swing of driving lever assembly be limited at the certain level face.

For making water proof ring not produce displacement, described water proof ring is provided with the directed square opening of the bar that is connected and cooperates the directed half slot of brush body.For guaranteeing the swing of driving lever assembly steadily, described water proof ring also has appropriate elasticity.

Compared with prior art, electric toothbrush of the present utility model has following beneficial effect: simple in structure, reliable, have simultaneously manually and electric toothbrush head, and the angle that electric toothbrush head rotates back and forth is bigger, thereby has improved brushing efficiency.

Description of drawings: the drawing of accompanying drawing is described as follows:

Fig. 1 is the structural representation of this utility model electric toothbrush.

Fig. 2 is the structural representation of described handle 8.

Fig. 3 is the structural representation of described rotary toothbrush head 7.

Fig. 4 is the structural representation of described driven gear 2.

Fig. 5 is the structural representation of described connecting rod 3.

Fig. 6 is the structural representation of described water proof ring 4.

Fig. 7 is the structural representation of described driving lever assembly 6;

Fig. 8 is the assembling sketch map of this utility model electric toothbrush.

Fig. 9 is the head toothbrushes of this utility model electric toothbrush and the sketch map of the driver part direction of motion thereof; (a) eccentric ball head is placed in the middle; (b) eccentric bulb is axially left; (c) eccentric bulb is axially right.

The utility model will be further described below in conjunction with accompanying drawing and embodiment shown in the drawings for the specific embodiment.

As Fig. 1 and shown in Figure 8, electric toothbrush of the present utility model comprises: place the motor 1 of toothbrush body 9 inner chambers and the change-speed gearing group on motor 1 power output shaft, the driven gear 2 of this change-speed gearing group is provided with eccentric shaft 2a (as Fig. 4), handle 8 with the 9 top active buckles of toothbrush body, the end of this handle 8 and rotary toothbrush head 7 flexibly connect, between the eccentric shaft 2a of change-speed gearing group and rotary toothbrush head 7, be provided with the driving lever assembly 6 of transferring power, stage casing socket one water proof ring 4 of this driving lever assembly 6, water proof ring 4 are fixed on the seam of toothbrush body 9 and handle 8; Described motor 1 drives the eccentric mechanism movement of described change-speed gearing group, and it be that fulcrum swings with water proof ring 4 that the end that eccentric stiffener is stirred driving lever assembly 6 makes driving lever assembly 6, other end promotion rotational head 7 forward and reverse reciprocal rotations of driving lever assembly 6.

As shown in Figure 2, be implanted with bristles 8c on the described handle 8, head is provided with the fixedly locating hole 8b of rotational head 7, tail end is provided with the location buckle 8a that cooperates with toothbrush body 9 tops, handle 8 is inserted the cooperation position of toothbrush body 9 along the axle center, the buckle 8a of handle 8 tail ends is stuck on the toothbrush body 9 after putting in place, and handle 8 is fixed on the toothbrush body 9; As Fig. 5 and shown in Figure 7, described driving lever assembly 6 comprises slide bar 5 and connecting rod 3, and slide bar 5 has bulb front end 5a, and the hole 3c internal fixation that inserts the leading section of connecting rod 3 behind the centre bore of water proof ring 4 is passed in the rear end of slide bar 5; The rearward end of connecting rod 3 has a groove 3a, and described eccentric shaft 2a drops among the groove 3a of connecting rod 3 rearward end, promotes driving lever assembly 6, is that the round of fulcrum swings thereby rotatablely moving of described driven pulley 2 converted to driving lever assembly 6 with water proof ring 4;

As shown in Figure 3, the back side of described rotational head 7 is provided with the chute 7b that cooperates slide bar 5 bulb end 5a, center, rotational head 7 back side is inlaid with a steel axle 7a, as Fig. 8, steel axle 7a is nested in the locating hole of handle 8 after passing the centre bore of rotary sleeve 11 together, the back that puts in place is stuck in the draw-in groove at steel axle 7a top at rotational head 7 back sides with E shape meson, and it is positioned at rotational head 7 on the handle 8, and rotational head 7 can be around the positive and negative rotation in axle center; As Fig. 5, there is a directed square column 3b connecting rod 3 ends of described driving lever assembly 6; As Fig. 6, described water proof ring 4 is provided with the directed square opening 4a of the bar 3 that is connected and cooperates the directed half slot 4b of brush body 9; Water proof ring 4 had both played waterproof action, the strong point during simultaneously again as 6 motions of brush driving lever assembly.

Fig. 9 is the direction of motion sketch map of head toothbrushes, and when the eccentric shaft 2a on the driven pulley 2 was in the middle position, (Fig. 9 a) for the rotational head 7 of naming a person for a particular job is pushed into middle position with water proof ring 4 for driving lever assembly 6; When the eccentric shaft 2a on the driven pulley 2 rotated to location right, driving lever assembly 6 was the fulcrum counter-clockwise swing with water proof ring 4, and eccentric shaft 2a promotes rotational head 7 by driving lever assembly 6 and swings (Fig. 9 b) clockwise; When the eccentric shaft 2a on the driven pulley 2 rotated to the position on the left side, driving lever assembly 6 was that fulcrum is swung clockwise with water proof ring 4, and eccentric shaft 2a promotes rotational head 7 counter-clockwise swings (Fig. 9 c) by driving lever assembly 6.Therefore, described motor 1 drives described driven pulley 2 and constantly rotates, it is the forward and reverse swing of fulcrum with water proof ring 4 that eccentric shaft 2a on the driven pulley 2 will constantly promote toothbrush driving lever assembly 6, bulb end 5a on the driving lever assembly 6 promotes rotational head 7 again and back and forth rotates in certain angle, and its movement locus is one section circular arc line.

Claims

1, a kind of electric toothbrush comprises:

Change-speed gearing group on the motor (1) of toothbrush body (9) and inner chamber thereof and motor (1) power output shaft, this change-speed gearing group is provided with eccentric stiffener;

With the handle (8) of toothbrush body (9) top active buckle, end of this handle (8) and rotary toothbrush head (7) flexibly connect, and it is characterized in that:

Also be included in the driving lever assembly (6) between change-speed gearing group eccentric stiffener and the rotary toothbrush head (7) in order to transferring power, stage casing socket one water proof ring (4) of this driving lever assembly (6), this water proof ring (4) are fixed on the seam of toothbrush body (9) and handle (8);

Described motor (1) drives the eccentric mechanism movement of described change-speed gearing group, it is that fulcrum swings with water proof ring (4) that the end that eccentric stiffener is stirred driving lever assembly (6) makes driving lever assembly (6), and the other end of driving lever assembly (6) promotes the forward and reverse reciprocal rotation of rotational head (7).

2, electric toothbrush according to claim 1, it is characterized in that: described driving lever assembly (6) comprises slide bar (5) and connecting rod (3), slide bar (5) has bulb front end (5a), and hole (3c) internal fixation that inserts the leading section of connecting rod (3) behind the centre bore of water proof ring (4) is passed in the rear end of slide bar (5); The rearward end of connecting rod (3) has a groove (3a), and leading section has one and the directed square column (3b) that cooperates of water proof ring (4).

3, electric toothbrush according to claim 1, it is characterized in that: the driven gear of described change-speed gearing group (2) is provided with eccentric shaft (2a), this eccentric shaft (2a) drops in the groove (3a) of connecting rod (3) rearward end, and the power of change-speed gearing group passes to connecting rod (3) by described eccentric shaft (2a).

4, electric toothbrush according to claim 1 is characterized in that: the back side of rotary toothbrush head (7) is provided with opening chute (7b) backward, and the bulb front end (5a) of described slide bar (5) just in time drops in this chute (7b).

5, electric toothbrush according to claim 1, it is characterized in that: the center, the back side of rotary toothbrush head (7) is convexly equipped with a steel axle (7a), the centre bore that this steel axle (7a) passes rotary sleeve (11) is nested in the locating hole (8b) of handle (8) together, after putting in place, socket is stuck in the draw-in groove (7c) on rotational head (7) back side steel axle (7a) top with an E shape meson, rotational head (7) is draped and is positioned on the handle (8), and can do forward and reverse rotation around the axle center of steel axle (7a).

6, electric toothbrush according to claim 1, it is characterized in that: the zone, stage casing of described handle (8) is implanted with bristles (8c) and constitutes the manual toothbrush head, head is provided with the locating hole (8b) that is used for fixing rotational head (7), tail end is provided with the location buckle (8a) that fastens with toothbrush body (9) top, handle (8) is inserted on the cooperation position of toothbrush body (9) along the axle center, be inserted into a buckle (8a) of back handle (8) tail end and be stuck on the toothbrush body (9), handle (8) is fixed on toothbrush body (9) top.

7, electric toothbrush according to claim 1 is characterized in that: described toothbrush body (9) is along axis hollow, and head toothbrushes driving lever assembly (6), driven gear (2) and motor (1) are placed in one.

8, electric toothbrush according to claim 1 is characterized in that: there is a directed square column (3b) described connecting rod (3) end.

9, electric toothbrush according to claim 1 is characterized in that: described water proof ring (4) is provided with the directed square opening (4a) of the bar that is connected (3) and cooperates the directed half slot (4b) of brush body (9).

10, electric toothbrush according to claim 1 is characterized in that: described water proof ring (4) has appropriate elasticity.