CN214387736U - Electric toothbrush driven by swing structure - Google Patents

Abstract

The utility model discloses an electric toothbrush driven by a swing structure, which comprises a brush head, a brush rod and a handle, wherein the handle is internally provided with the swing structure for driving the brush head and the brush rod; the swing structure includes: a motor; a lower fixing cover; the eccentric wheel is fixedly connected with a motor shaft; one end of the swinging block is rotatably connected between the lower fixed cover and the upper fixed cover, and the other end of the swinging block is rotatably connected with one end of the swinging connecting sheet; the swinging connecting piece is positioned above the swinging block, and the other end of the swinging connecting piece is fixedly connected with one end of the swinging shaft; a strip-shaped groove is arranged below the swinging block. The utility model discloses a by oscillating structure driven electric toothbrush's drive simple structure, transmission efficiency is high, can turn into the up-and-down motion of toothbrush brush head with the rotation of motor well, makes electric toothbrush's manufacturing procedure simplify greatly, cost greatly reduced, and the stable performance, and response speed is fast, and spare part is difficult to damage long service life.

Description

Electric toothbrush driven by swing structure

Technical Field

The utility model relates to a cleaning products field, concretely relates to electric toothbrush by swing structure driven.

Background

Brushing teeth in human life is the most basic method of removing dirt, plaque, and preventing gingivitis and periodontitis in basic life. The traditional toothbrush is difficult to thoroughly remove dental plaque, and the cleaning effect of tooth brushing is greatly reduced due to improper tooth brushing method. The living standard of people is continuously improved at present, and the material demand is also higher and higher, and the application of self-cleaning nursing device is more and more extensive, and electric toothbrush's appearance is not only the function of clean tooth, and the gingivitis of help treatment in addition alleviates red swelling of gum, the timing of brushing teeth, suggestion oral health information etc. is multi-functional.

2011.06.22 discloses a patent publication No. CN101068505B entitled "electric toothbrush," which discloses an electric toothbrush having a handle, a head (having a carrier and a longitudinal axis), and a neck disposed between the handle and the head; the motor is arranged inside the handle part; the shaft is operatively connected to the motor; the spindle is operatively connected to the carrier to move the carrier in a first motion; the carrier is movable in a second motion when subjected to a force of a user. The electric toothbrush of the patent adopts gear transmission and continuous transmission, and the transmission mechanism is complex, so that the whole electric toothbrush is complex in structure.

2019.07.12 discloses a patent publication CN109998720A entitled "electric toothbrush with rechargeable battery and inductive charger device for use with said electric toothbrush," which discloses an electric toothbrush with rechargeable battery comprising a base having a rechargeable battery receiving section and a bobbin section, said sections being integrally formed with each other and aligned along a common axis in said order. The rechargeable battery receiving section and the bobbin section are connected to each other by a pair of connection arms extending substantially parallel to each other. A rechargeable battery with tongue-shaped terminals is received in the rechargeable battery receiving section. In the base, two openings are formed for easy access to the tongue-shaped terminals. Upon disposal of the electric toothbrush, a user may remove the rechargeable battery by cutting the arm to remove the bobbin section and by cutting the tongue shaped terminals to remove the body of the battery. The electric toothbrush of the patent cannot generate a stable swinging tooth brushing mode (namely a corresponding up-down reciprocating tooth brushing mode), and the structure of the electric toothbrush is complex.

The current electric toothbrush also has problems including:

the driving structure is complex, and the rotation of the motor needs to be converted into the up-and-down reciprocating motion of the toothbrush head or the toothbrush head rotates by adopting a complex transmission mode, so that the electric toothbrush has complex manufacturing procedures, high requirements, high cost, unstable performance, slow response speed and too many (small) parts, is easy to damage and has short service life.

Based on the above situation, the utility model provides an electric toothbrush driven by swing structure can effectively solve above problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric toothbrush driven by a swing structure. The utility model discloses a by oscillating structure driven electric toothbrush's drive simple structure, transmission efficiency is high, can turn into the rotation of motor the up-and-down motion of toothbrush head (brush teeth from top to bottom) well, makes electric toothbrush's manufacturing procedure simplify greatly, cost greatly reduced, and the stable performance, response speed is fast, and spare part is difficult to damage long service life.

The utility model discloses a following technical scheme realizes:

an electric toothbrush driven by a swinging structure comprises a brush head, a brush rod and a handle, wherein the handle is internally provided with the swinging structure for driving the brush head and the brush rod;

the swing structure includes:

the motor comprises a motor shell, a motor end cover and a motor shaft;

the lower fixing cover is covered on the motor end cover;

the eccentric wheel is fixedly connected with the motor shaft penetrating through the lower fixing cover;

one end of the swinging block is rotatably connected between the lower fixed cover and the upper fixed cover, and the other end of the swinging block is rotatably connected with one end of the swinging connecting sheet;

the swinging connecting piece is positioned above the swinging block, and the other end of the swinging connecting piece is fixedly connected with one end of the swinging shaft;

the upper fixing cover is positioned above the lower fixing cover and is matched with the lower fixing cover to form a cavity for accommodating the eccentric wheel, the swinging block and the swinging connecting sheet; the swinging shaft penetrates out of the upper part of the upper fixing cover;

a strip-shaped groove is formed below the swinging block; the swing block is covered on the eccentric wheel, and the eccentric wheel is accommodated in the groove.

The utility model discloses a by oscillating structure driven electric toothbrush's drive simple structure, transmission efficiency is high, can turn into the up-and-down motion of toothbrush brush head with the rotation of motor well, makes electric toothbrush's manufacturing procedure simplify greatly, cost greatly reduced, and the stable performance, and response speed is fast, and spare part is difficult to damage long service life.

Preferably, the side wall of the groove comprises a first arc surface part, a plane part and a second arc surface part, the first arc surface part and the second arc surface part which are positioned at two ends are both arc surfaces, and the arc surface radiuses of the first arc surface part and the second arc surface part are equal to the radius of the eccentric wheel; the eccentric wheel can be in surface contact with both the first cambered surface part and the second cambered surface part in the rotating process.

Preferably, one end of the swinging block is rotatably connected between the lower fixed cover and the upper fixed cover through a first pin shaft, and the other end of the swinging block is rotatably connected with one end of the swinging connecting sheet through a second pin shaft.

Preferably, during the swinging process of the swinging shaft, the axis of the swinging shaft can coincide with the axis of the motor shaft.

Preferably, the swinging block is located at the first pin shaft position and extends upwards to form a first pin shaft sleeve; the height of the first pin shaft sleeve is greater than the thickness of the swing connecting piece.

Preferably, the lower surface of the swing block is in smooth contact with the upper surface of the lower fixing cover; the upper surface of the first pin shaft sleeve is in smooth contact with the lower surface in the upper fixing cover; the upper surface of the swing block is in smooth contact with the lower surface of the swing connecting piece.

Preferably, the lower surface of the eccentric wheel is not in contact with the upper surface of the lower fixing cover, and the upper surface of the eccentric wheel is not in contact with the lower surface of the swing block.

Preferably, the other end of the swinging shaft is detachably connected with one end of the brush rod.

Preferably, the motor further comprises a wiring terminal, and the motor is electrically connected with the power supply unit through the wiring terminal; the electric toothbrush driven by the oscillating structure further comprises a control switch; the motor is connected with the control switch in series through the wiring terminal and is electrically connected with the power supply unit to form a loop.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

the utility model discloses a by oscillating structure driven electric toothbrush's drive simple structure, transmission efficiency is high, can turn into the rotation of motor the up-and-down motion of toothbrush head (brush teeth from top to bottom) well, makes electric toothbrush's manufacturing procedure simplify greatly, cost greatly reduced, and the stable performance, response speed is fast, and spare part is difficult to damage long service life.

The swing structure of the electric toothbrush driven by the swing structure of the utility model adopts the motor shaft to drive the eccentric wheel to rotate, the eccentric wheel jacks up the swing block to swing back and forth, the swing block (the end with large swing amplitude) is connected with the swing connecting sheet, the end with large swing amplitude further drives the swing shaft to swing back and forth, and the swing amplitude of the end of the swing shaft connected with the brush rod is further amplified, thus achieving the efficacy of brushing teeth by reciprocating up and down; compared with the transmission mechanisms such as gears/connecting rods and the like adopted in the prior art, the structure has the advantages of ingenious design, simple structure, high transmission efficiency, stable performance and high response speed, and achieves the effect of amplifying the swing amplitude step by step; the operation is stable, the shaking is small during the work, the vibration is small, the structure is compact, the abrasion is small, the parts are not easy to damage, and the service life is long.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the swing structure of the present invention;

fig. 3 is an exploded schematic view of the swing structure of the present invention (omitting the upper fixing cover);

fig. 4 is an exploded schematic view of the swing structure of the present invention;

fig. 5 is a schematic bottom view of the swing block of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Example 1:

as shown in fig. 1 to 5, an electric toothbrush driven by a swing structure comprises a brush head 1, a brush rod 2 and a handle 3, wherein a swing structure 4 for driving the brush head 1 and the brush rod 2 is arranged in the handle 3;

the swing structure 4 includes:

the motor 41 comprises a motor shell 411, a motor end cover 412 and a motor shaft 413;

the lower fixing cover 42 is covered on the motor end cover 412;

an eccentric wheel 43 fixedly connected to the motor shaft 413 passing through the lower fixing cap 42;

a swing block 44 having one end rotatably connected between the lower fixing cover 42 and the upper fixing cover 46 and the other end rotatably connected to one end of the swing link 45;

the swinging connecting piece 45 is positioned above the swinging block 44, and the other end of the swinging connecting piece 45 is fixedly connected with one end of a swinging shaft 47;

an upper fixed cover 46 positioned above the lower fixed cover 42 and cooperating therewith to form a cavity for accommodating the eccentric wheel 43, the swing block 44 and the swing connecting piece 45; the swinging shaft 47 penetrates out from the upper part of the upper fixing cover 46;

a strip-shaped groove 441 is formed below the swinging block 44; the oscillating block 44 covers the eccentric 43 and accommodates the eccentric 43 in the groove 441.

Example 2:

as shown in fig. 1 to 5, an electric toothbrush driven by a swing structure includes a brush head 1, a brush holder 2 and a handle 3, and is characterized in that: a swing structure 4 for driving the brush head 1 and the brush rod 2 is arranged in the handle 3;

i.e. the body of the oscillating structure 4 for driving the brush head 1 and the brush bar 2 is located inside said handle 3.

The swing structure 4 includes:

the motor 41 comprises a motor shell 411, a motor end cover 412 and a motor shaft 413;

the lower fixing cover 42 is covered on the motor end cover 412;

in practical application, the lower fixing cover 42 is covered on the motor end cover 412 and can be arranged in a detachable connection manner such as a screw/buckle, and the arrangement of the lower fixing cover 42 plays a good role in supporting other structures, so that the swing structure 4 is ensured to run stably; if the motor end cap 412 is provided with special arrangements such as reinforcement, the motor end cap 412 provided with special arrangements such as reinforcement can be considered as the lower fixing cap 42, and the functions and effects of the two are the same.

An eccentric wheel 43 fixedly connected to the motor shaft 413 passing through the lower fixing cap 42;

a swing block 44 having one end rotatably connected between the lower fixing cover 42 and the upper fixing cover 46 and the other end rotatably connected to one end of the swing link 45;

the swinging connecting piece 45 is positioned above the swinging block 44, and the other end of the swinging connecting piece 45 is fixedly connected with one end of a swinging shaft 47;

therefore, the motor shaft 413 drives the eccentric wheel 43 to rotate, the eccentric wheel 43 pushes the swinging block 44 to swing back and forth, and the swinging block 44 further drives the swinging connecting piece 45 and the swinging shaft 47 to swing back and forth, so that the efficacy of brushing teeth by up-and-down reciprocating motion is achieved.

An upper fixed cover 46 positioned above the lower fixed cover 42 and cooperating therewith to form a cavity for accommodating the eccentric wheel 43, the swing block 44 and the swing connecting piece 45; the swinging shaft 47 penetrates out from the upper part of the upper fixing cover 46;

therefore, the power transmission and output part of the swing structure 4 has compact structure, small volume, fixed motion range, small vibration and stable operation.

A strip-shaped groove 441 is formed below the swinging block 44; the oscillating block 44 covers the eccentric 43 and accommodates the eccentric 43 in the groove 441.

Thus, the motor shaft 413 drives the eccentric wheel 43 to rotate, and the eccentric wheel 43 jacks up the swinging block 44 to swing back and forth.

The swing structure of the electric toothbrush driven by the swing structure of the utility model adopts the motor shaft 413 to drive the eccentric wheel 43 to rotate, the eccentric wheel 43 jacks up the swing block 44 to swing back and forth, the swing block 44 (the end with large swing amplitude) is connected with the swing connecting sheet 45, the end with large swing amplitude) further drives the swing shaft 47 to swing back and forth, and the swing amplitude of the end of the swing shaft 47 connected with the brush rod is further amplified, thus achieving the efficacy of brushing teeth by the up-and-down reciprocating motion; compared with the transmission mechanisms such as gears/connecting rods and the like adopted in the prior art, the structure has the advantages of ingenious design, simple structure, high transmission efficiency, stable performance and high response speed, and achieves the effect of amplifying the swing amplitude step by step; the operation is stable, the shaking is small during the work, the vibration is small, the structure is compact, the abrasion is small, the parts are not easy to damage, and the service life is long.

Further, in another embodiment, the side wall of the groove 441 includes a first arc surface 4411, a plane portion 4412 and a second arc surface 4413, and the first arc surface 4411 and the second arc surface 4413 at two ends are both arc surfaces, and the radius of the arc surfaces is equal to the radius of the eccentric wheel 43; the eccentric wheel 43 can be in surface contact with both the first arc-shaped part 4411 and the second arc-shaped part 4413 during rotation.

In practical application, the size and the eccentric distance of the eccentric wheel 43 can be adjusted according to requirements, such as the swing amplitude, so as to select the length of the plane part 4412, and ensure that the eccentric wheel 43 can be in surface contact with both the first arc surface part 4411 and the second arc surface part 4413 in the rotation process; the device greatly improves compactness, reduces shaking in the operation process, further reduces vibration, improves transmission efficiency, reduces power consumption and improves response reaction speed.

Further, in another embodiment, one end of the swing block 44 is rotatably connected between the lower fixed cover 42 and the upper fixed cover 46 by a first pin 481, and the other end is rotatably connected with one end of the swing link 45 by a second pin 482.

Thus, the installation and the disassembly are convenient, the structure is further simplified, and the cost is reduced. In practical application, the first pin 481 and the second pin 482 can be fixedly arranged at one ends, and the other ends are spliced, so that the number of parts can be reduced, the assembly efficiency can be increased, and the installation and the disassembly are more convenient.

Further, in another embodiment, during the swinging process of the swinging shaft 47, the axis thereof may coincide with the axis of the motor shaft 413.

Therefore, the motor shaft 413 can be better kept at the middle position, the compactness can be improved, the shaking in the operation process is reduced, the vibration is further reduced, the transmission efficiency is improved, the power consumption is reduced, and the integral compactness and the attractiveness of the electric toothbrush are ensured.

Further, in another embodiment, the swinging block 44 is located at the position of the first pin 481, and extends upward to form a first pin boss 442; the height of the first pin boss 442 is greater than the thickness of the swing link tab 45.

Therefore, the upper surface of the swing connecting piece 45 is not in contact with the lower surface in the upper fixing cover 46, the friction resistance is reduced, the shaking in the operation process is further reduced, the operation is more stable, the vibration is further reduced, the transmission efficiency is improved, and the power consumption is reduced.

Further, in another embodiment, the lower surface of the swing block 44 is in smooth contact with the upper surface of the lower fixing cover 42; the upper surface of the first pin boss 442 is in smooth contact with the lower surface inside the upper stationary cover 46; the upper surface of the swing block 44 is in smooth contact with the lower surface of the swing link 45.

Therefore, the friction resistance can be further reduced, the shaking in the operation process is further reduced, the operation is more stable, the vibration is further reduced, the transmission efficiency is improved, and the power consumption is reduced; in actual use, a lubricant and the like can be added to further reduce the frictional resistance.

Further, in another embodiment, the lower surface of the eccentric 43 is not in contact with the upper surface of the lower fixing cap 42, and the upper surface is not in contact with the lower surface inside the swing block 44.

Therefore, the friction resistance can be reduced, the shaking in the operation process is further reduced, the operation is more stable, the vibration is reduced, the transmission efficiency is improved, and the power consumption is reduced.

Further, in another embodiment, the other end of the swing shaft 47 is detachably connected to one end of the brush bar 2.

Further, in another embodiment, the motor 41 further includes a connection terminal 414, and the motor 41 is electrically connected to the power supply unit through the connection terminal 414.

The power supply unit is used for supplying power to the electric toothbrush driven by the swing structure, and can adopt a battery and the like commonly used in the field to provide power supply of electric energy.

Further, in another embodiment, the electric toothbrush driven by the swing structure further includes a control switch 5; the motor 41 is connected in series with the control switch 5 through a connection terminal 414 and is electrically connected with the power supply unit to form a loop.

The control switch 5 is used for controlling the starting and stopping of the motor 41, a closed loop is formed by closing, and the motor 41 starts to work; the circuit is broken and the motor 41 stops operating.

According to the description and drawings of the present invention, those skilled in the art can easily manufacture or use the electric toothbrush driven by the swing structure of the present invention, and can produce the positive effects described in the present invention.

Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.

Claims (9)

1. The utility model provides an electric toothbrush by swing structure driven, includes brush head (1), brush-holder stud (2) and handle (3), its characterized in that: a swing structure (4) for driving the brush head (1) and the brush rod (2) is arranged in the handle (3);

the oscillating structure (4) comprises:

the motor (41) comprises a motor shell (411), a motor end cover (412) and a motor shaft (413);

the lower fixing cover (42) is covered on the motor end cover (412);

an eccentric wheel (43) fixedly connected with the motor shaft (413) passing through the lower fixing cover (42);

a swing block (44) with one end rotatably connected between the lower fixed cover (42) and the upper fixed cover (46) and the other end rotatably connected with one end of a swing connecting sheet (45);

the swinging connecting piece (45) is positioned above the swinging block (44), and the other end of the swinging connecting piece (45) is fixedly connected with one end of a swinging shaft (47);

the upper fixing cover (46) is positioned above the lower fixing cover (42) and is matched with the lower fixing cover to form a cavity for accommodating the eccentric wheel (43), the swinging block (44) and the swinging connecting piece (45); the swinging shaft (47) penetrates out of the upper part of the upper fixing cover (46);

a strip-shaped groove (441) is formed below the swinging block (44); the swinging block (44) is arranged on the eccentric wheel (43) in a covering mode, and the eccentric wheel (43) is accommodated in the groove (441).

2. The electric toothbrush driven by an oscillating structure of claim 1, wherein: the side wall of the groove (441) comprises a first arc surface part (4411), a plane part (4412) and a second arc surface part (4413), the first arc surface part (4411) and the second arc surface part (4413) positioned at two ends are both arc surfaces, and the radiuses of the arc surfaces of the first arc surface part and the second arc surface part are both equal to the radiuses of the eccentric wheels (43); the eccentric wheel (43) can be in surface contact with both the first arc surface part (4411) and the second arc surface part (4413) in the rotating process.

3. The electric toothbrush driven by an oscillating structure of claim 1, wherein: one end of the swinging block (44) is rotatably connected between the lower fixed cover (42) and the upper fixed cover (46) through a first pin shaft (481), and the other end of the swinging block is rotatably connected with one end of the swinging connecting sheet (45) through a second pin shaft (482).

4. The electric toothbrush driven by an oscillating structure of claim 1, wherein: during the swinging process of the swinging shaft (47), the axis of the swinging shaft can be coincided with the axis of the motor shaft (413).

5. The electric toothbrush driven by an oscillating structure of claim 3, wherein: the swinging block (44) is positioned at the position of the first pin shaft (481) and extends upwards to form a first pin shaft sleeve (442); the height of the first pin boss (442) is greater than the thickness of the swing link (45).

6. The electric toothbrush driven by an oscillating structure of claim 3, wherein: the lower surface of the swing block (44) is in smooth contact with the upper surface of the lower fixed cover (42); the upper surface of the first pin boss (442) is in smooth contact with the lower surface inside the upper stationary cover (46); the upper surface of the swing block (44) is in smooth contact with the lower surface of the swing connecting piece (45).

7. The electric toothbrush driven by an oscillating structure of claim 1, wherein: the lower surface of the eccentric wheel (43) is not in contact with the upper surface of the lower fixing cover (42), and the upper surface is not in contact with the lower surface in the swinging block (44).

8. The electric toothbrush driven by an oscillating structure of claim 1, wherein: the other end of the swinging shaft (47) is detachably connected with one end of the brush rod (2).

9. The electric toothbrush driven by an oscillating structure of claim 1, wherein: the motor (41) further comprises a connecting terminal (414), and the motor (41) is electrically connected with the power supply unit through the connecting terminal (414); the electric toothbrush driven by the oscillating structure further comprises a control switch (5); the motor (41) is connected with the control switch (5) in series through a wiring terminal (414) and is electrically connected with the power supply unit to form a loop.

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