CN216570314U

CN216570314U - Electric toothbrush with rotary brush head

Info

Publication number: CN216570314U
Application number: CN202123211376.1U
Authority: CN
Inventors: 郭德全; 易友根
Original assignee: Zhongshan Zhuoji Industrial Development Co ltd
Current assignee: Zhongshan Zhuoji Industrial Development Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-05-24
Anticipated expiration: 2031-12-20

Abstract

The utility model is suitable for the technical field of electric toothbrushes, and provides a brush head rotary type electric toothbrush which comprises a brush handle, a brush head assembly, a brush head cover assembly and a driving assembly, wherein the brush head assembly comprises a brush head cover assembly and a brush head cover assembly; the brush holder is hollow structure, drive assembly set up in the inner chamber of brush holder, drive assembly include one set up in the motor of brush holder inner chamber with set up in the epaxial transmission shaft of motor output, the other end of transmission shaft rotationally extends to the outside front end of brush holder link up extremely the inside of brush head lid subassembly. This brush first rotation type electric toothbrush, brush head lid body parcel brush hair and brush head pole form the partly of cylindricality structure for the front of brushing first subassembly is exposed and is used for brushing teeth, and the back is wrapped up to brushing first lid originally internally, avoids at high rotatory in-process, and the back of brushing first subassembly leads to the damage with the inside tender skin contact in oral cavity, bleeds, reduces the injury that causes the user oral cavity, reduces the uncomfortable sense when using, and the practical function is better.

Description

Electric toothbrush with rotary brush head

Technical Field

The utility model belongs to the technical field of electric toothbrushes, and particularly relates to an electric toothbrush with a rotary brush head.

Background

The electric toothbrush is a novel toothbrush, the brush head generates high-frequency vibration through the quick rotation or vibration of the motor core, toothpaste is instantly decomposed into fine foam to deeply clean slits between teeth, and meanwhile, the vibration of bristles can promote the blood circulation in a cavity and has a massage effect on gingival tissues.

The brush head of the existing rotary electric toothbrush is generally directly and completely exposed in the oral cavity, for example, as described in the Chinese patent No. CN201720410039.X, the brush head is driven by a motor to rotate for brushing teeth, when the brush head is used, one side of the surface of the brush head is tightly attached to teeth, the other side of the surface of the brush head is easy to contact with the skin in the oral cavity, the high-speed rotating brush hair is easy to scrape the skin tissue in the oral cavity, oral bleeding is caused, the stabbing pain is caused, the oral cavity of a user is injured, and some defects exist in the use process.

SUMMERY OF THE UTILITY MODEL

The utility model provides a brush head rotary type electric toothbrush, and aims to solve the problems that when an existing rotary electric toothbrush is used, one side of the surface of a brush head is tightly attached to teeth, the other side of the surface of the brush head is easily contacted with skin in an oral cavity, and bristles rotating at a high speed easily scrape off skin tissues in the oral cavity to cause oral bleeding, produce a stabbing pain feeling and injure the oral cavity of a user.

The utility model is realized in this way, a brush head rotary type electric toothbrush, including brush holder, brush head assembly, brush head cover assembly and drive assembly;

the brush handle is of a hollow structure, the driving assembly is arranged in an inner cavity of the brush handle and comprises a motor arranged in the inner cavity of the brush handle and a transmission shaft arranged on an output shaft of the motor, and the other end of the transmission shaft can rotatably extend to the front end outside the brush handle and penetrate into the brush head cover assembly;

the brush head assembly comprises a brush head rod, the brush head rod is detachably connected with the outer end of the transmission shaft, and a plurality of groups of bristles are arranged on the surface of the brush head rod in a surrounding manner;

the brush head cover assembly comprises a connecting rod, the rear end of the connecting rod is detachably connected with the front end of the brush handle, a brush head cover body is fixedly connected with the front end of the connecting rod and is of a half-cylindrical structure with an open front surface, a cavity of the brush head cover body is formed and accommodated in the brush head cover body, and a plurality of through grooves are formed in the bottom of the brush head cover body.

Preferably, the front end of the brush head rod is fixedly connected with a limiting shaft, the front end of the brush head cover body is provided with a positioning hole, and the limiting shaft is movably clamped and embedded in the positioning hole.

Preferably, the plurality of groups of bristles are arranged at intervals along the length direction of the brush head, a gap is formed between every two adjacent groups of bristles, and a plurality of groups of separating sheets corresponding to the gap formed by the bristles are fixedly connected to two sides of the inner wall of the brush head cover body.

Preferably, the cavity has been seted up to the rear end face of brush head pole, the internal face of cavity is provided with the joint sand grip, the outer end of transmission shaft form with the installation position of joint sand grip looks adaptation.

Preferably, a long hole is formed in the connecting rod, two ends of the long hole penetrate through two ends of the connecting rod and are communicated with the inner cavity of the brush head cover body, and the transmission shaft penetrates through the long hole and is detachably connected with the brush head rod.

Preferably, the inner chamber of brush holder is provided with the mounting bracket, just be located on the mounting bracket the inner chamber fixed mounting of brush holder has battery and circuit board, motor fixed mounting in on the mounting bracket, the motor passes through the circuit board with the battery electricity is connected.

Preferably, the rear end of the inner cavity of the brush holder is provided with a charging assembly, and the front face of the brush holder is provided with a control button at a position corresponding to the circuit board.

Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that: according to the electric toothbrush with the rotary brush head, the motor drives the transmission shaft to rotate, so that the brush hair and the brush head rod are driven to rotate to brush teeth, the brush head cover body wraps a part of a cylindrical structure formed by the brush hair and the brush head rod, the front side of the brush head assembly is exposed for brushing teeth, the back side of the brush head assembly is wrapped in the brush head cover body, damage and bleeding caused by the fact that the back side of the brush head assembly is in contact with tender skin inside an oral cavity in the high-rotation process are avoided, harm to the oral cavity of a user is reduced, discomfort in use is reduced, and the practical effect is better.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic view of the construction of the brush head assembly of the present invention;

FIG. 4 is a schematic view of the construction of the brush head stem and cavity of the present invention;

FIG. 5 is a schematic view of a brush head cover assembly according to the present invention;

FIG. 6 is a schematic structural view of the connecting rod and the slot of the present invention.

In the figure: 1-brush handle, 2-motor, 3-transmission shaft, 4-connecting rod, 5-brush head cover body, 6-brush head rod, 7-brush hair, 8-through groove, 9-positioning hole, 10-control button, 11-limiting shaft, 12-concave cavity, 13-clamping convex strip, 14-separation sheet, 15-long hole, 16-mounting rack, 17-storage battery, 18-circuit board and 19-charging component.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1-6, the present invention provides a technical solution: a brush head rotary electric toothbrush comprises a brush handle 1, a brush head assembly, a brush head cover assembly and a driving assembly;

brush holder 1 is hollow structure, and drive assembly sets up in the inner chamber of brush holder 1, and drive assembly includes one and sets up in the motor 2 of 1 inner chamber of brush holder and set up in the epaxial transmission shaft 3 of motor 2 output, and the other end of transmission shaft 3 rotationally extends to the outside front end of brush holder 1 and link up to the inside of brushing first lid subassembly.

The brush handle 1 is made of plastic, and the brush handle 1, the motor 2 and the transmission shaft 3 are all in the prior art and are not described herein.

The front end of the inner cavity of the brush holder 1 is provided with a sealing assembly which can be an elastic sealing ring and is arranged at the front end of the inner cavity of the brush holder 1, and the sealing assembly is wrapped outside the transmission shaft 3, so that the driving lever mechanism 3 can normally move, and meanwhile, the phenomenon that foam or water permeates into the brush holder 1 from the through position of the transmission shaft 3 and the brush holder 1 is avoided.

The brush head component comprises a brush head rod 6, the brush head rod 6 is detachably connected with the outer end of the transmission shaft 3, and a plurality of groups of brush hairs 7 are arranged on the surface of the brush head rod 6 in a surrounding manner;

the first lid subassembly of brush includes a connecting rod 4, and the rear end of connecting rod 4 can be dismantled with the front end of brush holder 1 and be connected, and the front end fixedly connected with of connecting rod 4 is first covered body 5, and first covered body 5 of brush is positive open semi-cylindrical structure, and the inside of first covered body 5 of brush forms the cavity that holds first subassembly of brush, and a plurality of logical grooves 8 have been seted up to the bottom of first covered body 5 of brush.

In this embodiment, brush first subassembly is located the inside of brush head lid body 5, and the rear end of brushing first pole 6 can be dismantled with the outer end of transmission shaft 3 and be connected, is rotated by motor 2 drive transmission shaft 3 to drive brush first pole 6 and rotate, and then drive brush hair 7 rotatory, realize brushing teeth.

The brush head assembly of the rotary type can brush the teeth at all positions forwards and backwards, so that the coverage is more comprehensive, and no dead angle is left.

The inner cavity of the brush head cover body 5 is slightly larger than the covered area when the brush hairs 7 rotate, so that the brush head assembly can normally rotate.

The brush hair 7 and the brush head rod 6 form a shape similar to a column, the brush head cover body 5 wraps a part of a column-shaped structure formed by the brush hair 7 and the brush head rod 6, so that the front side of the brush head assembly is exposed for brushing teeth, the back side of the brush head assembly is wrapped in the brush head cover body 5, damage and bleeding caused by contact of the back side of the brush head assembly and delicate skin inside the oral cavity are avoided in a high-rotation process, and discomfort is reduced.

Driven structural component is very simplified, has ensured the stability of performance and has reduced the noise, and the brush head back is wrapped up simultaneously, can not produce the contact with the oral cavity wall, has reduced the resistance when rotating to reduced the work that motor 2 need do, thereby reduced the consumption, had energy-conserving effect.

The bottom of the brush head cover body 5 is provided with the through groove 8, so that skin fragments or impurities attached to the brush hair 7 can be conveniently discharged during tooth brushing, and the brush hair 7 is prevented from being polluted by being left in the brush head cover body 5 for a long time.

Furthermore, the front end of the brush head rod 6 is fixedly connected with a limiting shaft 11, the front end of the brush head cover body 5 is provided with a positioning hole 9, and the limiting shaft 11 can be movably clamped and embedded in the positioning hole 9.

In this embodiment, during installation, spacing axle 11 inlay card is to locating hole 9 in, spacing brush head pole 6 front end, and the brush head uses spacing axle 11 to rotate 360 or reciprocating rotation at fixed position as the axis for when brush head pole 6 drives brush hair 7 and rotates, can keep rotatory at the primary importance, can not deviate from, squint.

Furthermore, a plurality of groups of bristles 7 are arranged at intervals along the length direction of the brush head rod 6, a gap is formed between every two adjacent groups of bristles 7, and a plurality of groups of separation sheets 14 corresponding to the gap formed by the bristles 7 are fixedly connected to the two sides of the inner wall of the brush head cover body 5.

In the embodiment, impurities such as food scraps and skin fragments scraped by the bristles 7 in the tooth brushing process are attached to the bristles 7, and when the bristles 7 are rotated into the brush head cover body 5, the bristles 7 are in contact with the separating sheet 14, so that the impurities can be conveniently separated from the bristles 7.

Further, the rear end face of the brush head rod 6 is provided with a cavity 12, the inner wall face of the cavity 12 is provided with a clamping convex strip 13, and the outer end of the transmission shaft 3 forms an installation position matched with the clamping convex strip 13.

In this embodiment, during the installation, spacing axle 11 inlay card is to locating hole 9 in, then puts the brush head pole 6 flat to brush head lid body 5 in, then with brush head lid subassembly intercommunication brush head subassembly installation to brush holder 1 on, the front end of transmission shaft 3 inserts the rear end of brush head pole 6 this moment, realizes connecting fixedly, can normally work.

The joint sand grip 13 is two sets of, and the symmetrical setting, back in the front end of transmission shaft 3 stretched into cavity 12, joint sand grip 13 top tightly on the surface of 3 front ends of transmission shaft for transmission shaft 3 and brush first pole 6 reciprocal anchorage can't produce relative rotation, make transmission shaft 3 can drive brush first pole 6 normal rotation and brush teeth, make drive assembly can not idle.

Further, slot hole 15 has been seted up to the inside of connecting rod 4, and the both ends of slot hole 15 link up the both ends of connecting rod 4 and with brush the inner chamber intercommunication of brush head lid body 5, transmission shaft 3 passes slot hole 15 and can dismantle with brush head rod 6 and be connected.

In the present embodiment, the diameter of the long hole 15 is slightly larger than that of the transmission shaft 3, so that the transmission shaft 3 can normally rotate without friction to cause non-rotation.

Further, the inner cavity of brush holder 1 is provided with mounting bracket 16, and battery 17 and circuit board 18 are fixedly mounted on mounting bracket 16 and in the inner cavity of brush holder 1, and motor 2 is fixedly mounted on mounting bracket 16, and motor 2 is electrically connected with battery 17 through circuit board 18.

In the present embodiment, the storage battery 17 is used for storing electric energy, and the circuit board 18 is used for controlling the on/off of the circuit, so as to control the operation of the motor 2 and realize the tooth brushing function.

The rear end of 1 inner chamber of brush holder is provided with the subassembly 19 that charges, and the subassembly 19 that charges is wireless charging induction coil, uses with the cooperation of wireless charging seat, carries out wireless charging to battery 17, for prior art, does not do and does not describe repeatedly.

The front surface of the brush holder 1 is provided with a control button 10 at a position corresponding to the circuit board 18. The circuit board 18 is provided with contacts, and when the control button 10 is pressed, the contacts are pressed to realize circuit control, so that the work of the motor 2 is controlled.

The working principle and the using process of the utility model are as follows: when in work, the control button 10 is pressed down to connect the circuit, the motor 2 drives the transmission shaft 3 to rotate, thereby driving the brush head rod 6 to rotate, thereby driving the brush hair 7 to rotate and realizing tooth brushing, the brush hair 7 and the brush head rod 6 form a shape similar to a column, the brush head cover body 5 wraps a part of the column-shaped structure formed by the brush hair 7 and the brush head rod 6, so that the front surface of the brush head component is exposed for brushing teeth, and the back surface is wrapped in the brush head cover body 5, thereby avoiding the phenomenon that in the process of high rotation, the back of brush head subassembly leads to damage, hemorrhage with the inside delicate skin contact in oral cavity, reduces uncomfortable sense, reduces the injury that causes the user oral cavity, and logical groove 8 has been seted up to the bottom of brush head lid body 5, is stained with skin piece or the impurity of attaching on brush hair 7 when being convenient for discharge to brush teeth, avoids keeping for a long time in brush head lid body 5 inside rotten bad to cause the pollution to brush hair 7.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A brush head rotary electric toothbrush is characterized in that: comprises a brush handle (1), a brush head component, a brush head cover component and a driving component;

the brush handle (1) is of a hollow structure, the driving assembly is arranged in an inner cavity of the brush handle (1), the driving assembly comprises a motor (2) arranged in the inner cavity of the brush handle (1) and a transmission shaft (3) arranged on an output shaft of the motor (2), and the other end of the transmission shaft (3) can rotatably extend to the front end of the outer part of the brush handle (1) and penetrate into the brush head cover assembly;

the brush head assembly comprises a brush head rod (6), the brush head rod (6) is detachably connected with the outer end of the transmission shaft (3), and a plurality of groups of bristles (7) are arranged on the surface of the brush head rod (6) in a surrounding manner;

the brush head cover assembly comprises a connecting rod (4), the rear end of the connecting rod (4) is detachably connected with the front end of the brush handle (1), a brush head cover body (5) is fixedly connected with the front end of the connecting rod (4), the brush head cover body (5) is of a semi-cylindrical structure with an open front surface, the inside of the brush head cover body (5) is formed to accommodate a cavity of the brush head assembly, and a plurality of through grooves (8) are formed in the bottom of the brush head cover body (5).

2. The rotary head electric toothbrush according to claim 1, wherein: the front end fixedly connected with of brush head pole (6) is spacing axle (11), locating hole (9) have been seted up to the front end of brush head lid body (5), spacing axle (11) movably inlay card extremely the inside of locating hole (9).

3. The rotary head electric toothbrush according to claim 1, wherein: the multiple groups of bristles (7) are arranged at intervals along the length direction of the brush head rod (6), a gap is formed between every two adjacent groups of bristles (7), and multiple groups of separation sheets (14) corresponding to the gap formed by the bristles (7) are fixedly connected to the two sides of the inner wall of the brush head cover body (5).

4. The rotary head electric toothbrush according to claim 1, wherein: the rear end face of the brush head rod (6) is provided with a cavity (12), the inner wall face of the cavity (12) is provided with a clamping convex strip (13), and the outer end of the transmission shaft (3) forms an installation position matched with the clamping convex strip (13).

5. The rotary head electric toothbrush according to claim 1, wherein: slotted hole (15) have been seted up to the inside of connecting rod (4), the both ends of slotted hole (15) link up the both ends of connecting rod (4) and with the inner chamber intercommunication of brush head lid body (5), transmission shaft (3) pass slotted hole (15) with brush head pole (6) can be dismantled and be connected.

6. The rotary head electric toothbrush according to claim 1, wherein: the inner chamber of brush holder (1) is provided with mounting bracket (16), just be located on mounting bracket (16) the inner chamber fixed mounting of brush holder (1) has battery (17) and circuit board (18), motor (2) fixed mounting in on mounting bracket (16), motor (2) pass through circuit board (18) with battery (17) electricity is connected.

7. The rotary head electric toothbrush according to claim 6, wherein: the rear end of the inner cavity of the brush holder (1) is provided with a charging assembly (19), and the front surface of the brush holder (1) is provided with a control button (10) at a position corresponding to the circuit board (18).