CN2324988Y - an electric toothbrush - Google Patents

Abstract

The utility model discloses an electric toothbrush, which comprises a handle, a power and transmission device, a positioning rod vertically embedded in an upper output shaft rod and connected with a brush part, wherein the brush part comprises a brush shell, a brush cover, a brush rod and two brush heads, tenons, grooves or fastener embedded brush covers are arranged on the top of the brush shell and two side edges above the brush shell, the middle section of the brush part horizontally protrudes out of a cover tenon, rod hooks are arranged on two sides of the bottom of the brush rod, a brush groove is arranged on the section near the middle section, a hollow rod groove is arranged above the brush rod, an embedding hole is arranged on the brush head, a plurality of slotted holes are arranged on the outer side of the brush head, a brush shaft is embedded and fixed in the embedding hole, the brush shaft is embedded in the brush head, the rod hooks hook the positioning rod, the cover tenon enables the brush cover to be embedded in the brush shell, the brush part is connected with.

Description

an electric toothbrush

The utility model relates to an electric toothbrush.

Electric toothbrushes are the main development trend of toothbrushes at present. Because of their high-speed brushing action, doctors also recommend electric toothbrushes to replace traditional toothbrushes to enhance the brushing effect.

In fact, the current electric toothbrush is output by a DC motor, and then converts the rotation into a reciprocating movement, and then drives the brush head with the bristles inserted, so that the brush head is converted into rotation through the reciprocating displacement action, to be used as a brush. Delete homework. The applicant once proposed the No. 97200225.1 utility model patent application to the Chinese Patent Office, "sterilizing charging stand for electric toothbrush and its toothbrush" is an example.

Professional research in stomatology has found that the brushing action should be up and down. The traditional brushing action of moving left and right is not correct, and the rotation of the brush head is not suitable for the brushing action of up and down displacement. It should be further improved to adapt to Oral hygiene needs.

For this reason, the purpose of this utility model is to overcome above-mentioned defect and design a kind of electric toothbrush that meets the required up and down movement of oral hygiene.

The utility model embodiment is as follows:

The electric toothbrush provided by the utility model includes: a handle, which has power and a transmission device for linear motion output inside, and a positioning rod is vertically embedded on the output shaft rod protruding above, and the positioning rod is connected to the brush part. It also includes a brush part, which is composed of a brush shell, a brush cover sandwiching a brush rod and two brush heads. The bottom of the brush shell is a round tube body, and the size corresponds to the upper edge of the handle, the top and the upper sides Tenons, grooves or fasteners are set on the edge for fitting with the brush cover; there are two horizontal long faces on the upper brush surface; the size and shape of the brush cover correspond to the brush shell, and have corresponding grooves, tenons or fasteners and other connecting devices, a cover tenon protrudes horizontally from the middle section; the brush rod is long, with hook-shaped rod hooks on both sides of the bottom, and near the middle section, there is a vertically long brush groove, which is slightly larger than the cover. The top of the tenon corresponds to the brush surface, and there are two oblique hollow rod grooves with different movements; and there is an embedded hole on the surface of the brush head near the brush shell, and there are several grooves on the outside for the brush bristles to be embedded, and there is an embedded hole. Insert and fix the brush shaft in the embedded hole;

The brush shaft passes through the rod groove and face and protrudes outside the brush shell to fit the brush head, and the rod hook is hooked to the positioning rod, the cover tenon is embedded in the brush groove, and the brush cover is fitted with the brush shell, and the brush part is connected to the handle ;The output shaft of the handle is a linear motion that drives the brush rod to reciprocate in a straight line, and the brush head moves inside and outside relative to the brush surface with the displacement of the brush shaft along the rod groove;

A mask is placed on the outside of the brush shell, and a cover hole is opened corresponding to the face; an inner sleeve is added on the inside, and a sleeve hole is opened corresponding to the face; the brush shaft is sleeved with a wear-resistant ring; the brush shell The length of the bottom or the top of the grip can be reduced and fitted with a coupling ring;

The rod hook is slightly inclined to improve the fastness of hooking with the positioning rod.

Below in conjunction with accompanying drawing, embodiment further describe the utility model.

Brief description of the drawings:

Figure 1: A three-dimensional exploded view of the utility model electric toothbrush.

Fig. 2: The side view sectional view of the combination of the utility model.

Fig. 3: A cross-sectional view of the utility model when the brush rod is at the highest point.

Figure 4: Front sectional view of the brush head flared when the brush rod is moved down.

Description of figure number:

Grip 1 Brush 2 Output Shaft 11 Positioning Rod 12

Brush case 21 Brush cover 22 Brush handle 23 Brush head 24

Combination ring 25 brush face 211 face 212 face mask 213

Cover hole 214 inner sleeve 215 sleeve hole 216 cover tenon 221

Rod hook 231 Brush groove 232 Rod groove 233 Brush shaft 241

Embedding hole 242 Planting hole 243 Bristles 244 Wear-resistant ring 245

As shown in the figure, basically, the electric toothbrush provided by the utility model is composed of a handle 1 and a brush part 2 .

Among them, the handle 1 is the prior art, which contains batteries, motors and transmission devices, so that the final output shaft moves up and down in a straight line. In addition to the aforementioned application No. 97200225.1, other brands also use this method. , so it will not be repeated.

The utility model is characterized in that a positioning rod 12 is vertically embedded on the protruding output shaft 11 at the top of the handle 1 for connecting the brush portion 2 described later.

As shown in the figure, the brush part 2 is composed of a brush shell 21 , a brush cover 22 sandwiching a brush rod 23 , two brush heads 24 and a coupling ring 25 .

Among them, the bottom of the brush shell 21 is a round tube body, the size of which corresponds to the coupling ring 25, and its bottom edge is concave or protruding for fitting; and its top and upper side edges are provided with tenons and grooves for the brush cover. 42 fit, and on the upper brush surface 211, there are two horizontal strips of face 212 for the brush shaft 241 of the brush head 24 to penetrate, and at the same time, in order to buffer the wear between it and the brush head 44, A mask 213 is embedded in the face hole 212 to cover it, and the mask 213 also has two mask holes 214 corresponding to the face hole 212 and in a connected state. In addition, the other side is also fitted with an inner sleeve 215, and has two horizontal rectangles. The sleeve hole 216 is connected to the face hole 212 and the cover hole 214 to achieve the purpose of wear resistance.

The size and shape of the brush cover 22 correspond to the brush shell 21 and fit together, and the middle section protrudes a cover tenon 221 in the horizontal direction, which serves as the pivot when the brush rod 43 moves up and down, and its peripheral edge can be fitted with the brush shell 21 Connecting tenons, grooves, etc.

The brush rod 23 is oblong and strip-shaped, and is sandwiched in the brush shell 21 and the brush cover 22. There are hook-shaped rod hooks 231 on both sides of the bottom, which are used for hooking the positioning rod 12, and the rod hooks are reversed. It is better to have an oblique angle to improve the hook fastness. Near the center above it, there is a vertically elongated brush groove 232, whose size is slightly larger than the cover tenon 221; and above it, corresponding to the brush surface 211, there are two oblique hollow rod grooves with different movements. 233 for the brush shaft 241 of the brush head 24 to pass through.

The brush head 24 is square, and its outer end is in the shape of a semi-circular arc. The brush shaft 241 is fitted and fixed in the embedded hole 242 provided thereon. In addition, its outer surface is then provided with a number of non-penetrating planting holes 243 for bunching. The bristles 244 (shown in FIG. 2 ) are implanted and positioned. At the same time, in order to make it wear-resistant, the brush shaft 241 can be fitted with a wear-resistant ring 245 to increase its service life.

The size of the joint ring 25 corresponds to the upper edge of the handle 1 and the bottom of the brush housing 21, which can be fitted and connected. In order to make it have the characteristics of impermeability, it is sealed in an ultrasonic mode when combined; the joint ring 25 can also be omitted, and Directly from the extended length of the handle 1 and the brush shell 21, they are directly sealed by ultrasonic waves.

Please refer to Fig. 2 again. When the utility model is combined, the brush rod 23 is clamped in the brush shell 21 and the brush cover 22, the brush shaft 241 passes through the rod groove 233 and fits into the brush head 24, and the rod hook 231 is hooked into the brush head 24. On the positioning rod 12 on the output shaft rod 11, the brush head 24 and the bristles 244 are exposed.

Please refer to Figure 3 and Figure 4, firstly fit the brush part with the handle, if the output shaft 11 is at a low point, its positioning rod 12 has not yet been connected with the brush rod 23, at this time, start the power supply of the handle 1 Make the output shaft 11 move up and down due to the transmission inside the handle 1, and during the upward movement, make the positioning rod 12 engage with the rod hook 231 along the slope of the rod hook 231, and synchronously drive the brush rod 23 to move up and down . Like this, when the brush bar 23 as shown in Figure 3 is a high point, two brush shafts 241 are positioned at the low point of bar groove 233, and its position of two brush heads 24 is slightly on the brush surface 211 at this moment, when brush bar 23 When moving down, the brush shaft 241 slides upward and outward along the tenon groove 233, and makes the brush head 24 slide outward together. As a result of such repeated movements, when brushing teeth, the entire toothbrush is brushing in a horizontal direction. The head 24 then moves upwards and downwards at high speed respectively, so that it meets the requirement of brushing up and down for oral hygiene, and can effectively perform the brushing action.

Therefore, through the implementation of the present invention, the bristles 244 can move up and down quickly, which has a significantly improved effect compared with the bristle rotation of the existing toothbrush.

What is disclosed in the utility model is a kind of preferred embodiment, and all partial changes or modifications derived from the technical idea of the utility model and easily inferred by those skilled in the art will not depart from the utility model. Scope of protection for new types of rights.

Claims (5)

1. an electric toothbrush comprises: a handle, inside have power and are the actuating device of linear movement output, and on the output axostylus axostyle that give prominence to the top, vertically set a positioning rod, and locating rod connects brush portion; It is characterized in that also comprising a brush portion, cover double team one brush holder support and two brush header combination form, wherein brush the shell below and be the pipe body by a brush shell, a brush, the corresponding what handle of size upper limb, top and top both side edges be provided with for and brush cover chimeric tenon, groove or fastener; In the brush finish of top, have the face of two horizontal strips; The corresponding what brush of the size and shape of brush lid shell, and have corresponding hookup mechanisms such as groove, tenon or fastener, the outstanding lid tenon of its stage casing horizontal direction; Brush holder support is a strip, and two bottom sides has hook-shaped pike pole, nearly middle section, then have one vertical to rectangular brush groove, the bigger what lid of its size tenon, corresponding what brush finish place in top has two oblique and hollow out bar grooves that trend is different; And the nearly brush shell face of brush is established an embedding hole, and its outside has some slotted eyes of setting for bristles, but and the fixedly brush axle in what embedding hole of an intercalation arranged;

Brush axle passes through bar groove and face and the outer chimeric brush of outstanding what brush shell, and pike pole hooks together the what locating rod, and what brush groove is worn in the embedding of lid tenon, and the brush lid is chimeric with the brush shell, and brush portion links the what handle; The output axostylus axostyle of handle is that linear movement drives brush holder support and moves as linear reciprocation, and brush is with brush axle outer displacement along the displacement of bar groove and in brush finish is done relatively.

2. by the described electric toothbrush of claim 1, it is characterized in that the described brush shell outside adds to put a face shield, and corresponding face is offered the cover hole; Its inboard then adds cover in, and corresponding face place offers trepanning.

3. by the described electric toothbrush of claim 1, it is characterized in that described brush axle sleeve unification wear ring.

4. by the described electric toothbrush of claim 1, it is characterized in that the unification coupling collar can be reduced and overlap to the length at the top of described brush shell bottom or handle.

5. by the described electric toothbrush of claim 1, it is characterized in that described pike pole slightly is can improve with locating rod to hook together the oblique of fastness.

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