CN214761571U - Electric toothbrush - Google Patents

Abstract

The utility model relates to an electric toothbrush, including the handle body and toothbrush head, be provided with a plurality of brush hair body on the toothbrush head, the brush hair body rotates through rotating the seat and sets up on the toothbrush head, the inside slip of toothbrush head is provided with the transfer line, the linkage is provided with drive gear on the rotation seat, be provided with the rack with the drive gear interlock on the transfer line, be provided with the drive assembly that drives transfer line reciprocating motion on the handle body, drive assembly includes motor arrangement, drive seat, the actuating lever, first return spring and second return spring, drive seat is provided with spherical bulge or spherical recess, the actuating lever that corresponds with it is provided with spherical recess or spherical bulge, when spherical bulge rotated away from spherical recess, drive seat can drive actuating lever and transfer line and move to the direction that is close to the toothbrush head; when the spherical bulge is turned into the spherical groove, the first return spring and the second return spring can respectively drive the driving rod and the transmission rod to move towards the direction far away from the toothbrush head. By adopting the scheme, the novel clothes hanger is simple in structure and comfortable to use.

Description

Electric toothbrush

Technical Field

The utility model belongs to the technical field of toothbrush technique and specifically relates to an electric toothbrush.

Background

In daily life, a toothbrush is used for cleaning the oral cavity in order to clean the oral cavity, but a manual toothbrush usually cannot clean teeth cleanly, and the gum bleeding and the enamel abrasion are caused by the non-specification of manual operation force and action. Electric toothbrush has appeared on the market now, and it includes the handle body and toothbrush head, and the internal motor core's of handle fast rotation or vibrations drive the toothbrush head and produce high frequency vibration, and the vibration transmission brushes teeth on to the brush hair of toothbrush head. However, the bristles transmit vibration to the teeth, which may cause the teeth to feel crisp and uncomfortable.

Disclosure of Invention

The utility model overcomes the defects of the prior art and provides an electric toothbrush which has simple structure and comfortable use.

In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides an electric toothbrush, includes the handle body and toothbrush head, toothbrush head detachable installs on the handle body, is provided with a plurality of brush hair body on the toothbrush head, brush hair body rotates through rotating the seat and sets up on the toothbrush head, and brush hair body installs on rotating the seat, it is provided with the transfer line to slide along the length direction of the handle body in the toothbrush head, and the linkage is provided with drive gear on rotating the seat, is provided with the rack with drive gear looks interlock on the transfer line, and the transfer line removes and can drives and rotate the seat rotation, be provided with the drive assembly who drives transfer line reciprocating motion on the handle body, drive assembly includes motor device, drive seat, actuating lever, first return spring and second return spring, motor device is fixed to be set up in the handle body, and drive seat rotation sets up in the handle body, and the center pin of drive seat sets up along the length direction of the handle body, and motor device's output shaft can drive the rotation of drive seat, the driving rod is arranged on the handle body in a guiding and sliding manner along the length direction of the handle body, the driving rod and the driving rod are arranged in a mutual abutting manner, a spherical bulge or a spherical groove is arranged on the end surface of one side, close to the driving rod, of the driving seat, a spherical groove or a spherical bulge is arranged on the end surface of the driving rod corresponding to the spherical bulge, and when the spherical bulge rotates away from the spherical groove, the driving seat can drive the driving rod and the driving rod to move towards the direction close to the toothbrush head; when the spherical bulge is turned into the spherical groove, the first return spring and the second return spring can respectively drive the driving rod and the transmission rod to move towards the direction far away from the toothbrush head.

By adopting the above scheme, the brush hair body exposes in the brush head, the brush hair body comprises a plurality of brush hair, the brush hair does not need to be perpendicular to the outer surface of the brush, and can be inclined for a certain angle, the size of the brush hair can be different, and the setting position can be irregular, the motor device can be provided with a speed reducing function, and can also comprise a motor and a speed reducing structure, thereby reducing the rotating speed of the output shaft, no matter the brush head is arranged on the handle body, the first return spring always enables the driving rod to be abutted against the driving seat, and the second return spring is arranged, so that the driving rod and the driving rod are not required to be additionally provided with a transmission structure, and only the mutual abutting is required, the linkage matching between the driving rod and the driving rod can be realized, when the brush head is arranged on the handle body, the driving rod and the driving rod are in linkage matching to realize the synchronous movement between the driving rod and the driving rod, at the output shaft of the motor device rotates to drive the driving seat to rotate, when the driving seat rotates until the spherical bulge rotates away from the spherical groove, the driving seat can drive the driving rod and the transmission rod to move towards the direction close to the toothbrush head; when the drive seat rotates to the spherical bulge and turns into spherical recess, first return spring and second return spring can drive actuating lever and transfer line respectively and remove to the direction of keeping away from the toothbrush head, thereby the reciprocating motion of actuating lever and transfer line has been constituted, it is provided with drive gear to rotate in step on the seat to rotate, the rack on the transfer line meshes with drive gear mutually, drive gear can be driven to drive transfer line reciprocating motion and rotate, thereby drive the positive or reverse rotation of the bristle body, the brush hair of the bristle body acts on the tooth, can clean the tooth, the steam generator is simple in structure, it is more comfortable to use, certainly also can pull out the toothbrush head from the handle body, more renew toothbrush head.

The utility model discloses a further setting is: the driving seat is integrally or separately provided with a plurality of spherical bulges on the end surface of one side close to the driving rod, the spherical bulges are distributed at intervals along the circumferential direction of the driving seat, and the end surface of the driving rod close to the driving seat is provided with a spherical groove matched with the spherical bulges.

Through adopting above-mentioned scheme, spherical arch and spherical recess set up a plurality ofly to the drive seat drives the actuating lever and steadily removes, simple structure, reasonable in design.

The utility model discloses a further setting is: the first return spring is sleeved outside the driving rod, one end of the first return spring abuts against the driving rod, the other end of the first return spring abuts against the handle body, the second return spring is sleeved outside the transmission rod, one end of the second return spring abuts against the transmission rod, and the other end of the second return spring abuts against the toothbrush head.

Through adopting above-mentioned scheme, first return spring and second return spring installation are stable, simple structure, reasonable in design.

The utility model discloses a further setting is: the toothbrush is characterized in that a limiting structure for limiting the moving distance of the transmission rod is arranged between the toothbrush head and the transmission rod, the limiting structure comprises a limiting block or a limiting groove arranged on the transmission rod, a limiting groove or a limiting block is arranged on the toothbrush head corresponding to the limiting structure, the limiting block is inserted into the limiting groove and can move back and forth along the limiting groove, and the limiting block abuts against the end part of the limiting groove to limit the movement of the transmission rod.

Through adopting above-mentioned scheme, be provided with the spacing groove on the transfer line, be provided with the stopper on the toothbrush head, stopper and spacing groove cooperation can restrict the transfer line and break away from the toothbrush head when the toothbrush head pulls out from the handle body, simple structure, reasonable in design.

The utility model discloses a further setting is: the handle body includes upper end cover, lower extreme cover, interior casing and shell body, the shell body overcoat is in interior casing, and wherein the shell body is transparent casing, and the upper end of interior casing and shell body is sealed cooperation with the upper end cover respectively, and the lower extreme of interior casing and shell body is sealed cooperation with the lower extreme cover respectively.

Through adopting above-mentioned scheme, the upper and lower both ends of interior casing and shell body respectively with upper end cover and the sealed cooperation of lower end cover, can prevent to soak, safer, the shell body is transparent casing, interior casing can set up the colour, adopts the structure of inside and outside two-layer casing, and is more pleasing to the eye, also can reduce the wearing and tearing of shell body through the intensity that increases the shell body, simple structure, reasonable in design.

The utility model discloses a further setting is: the interior fixed mounting bracket that is provided with of inner casing, be provided with the adapter sleeve of being connected with the toothbrush head is detachable on the handle body, adapter sleeve and mounting bracket fixed connection are provided with the installation cavity that supplies driving seat and actuating lever installation in the adapter sleeve, and motor device sets up the lower extreme department at the adapter sleeve, and the handle body passes through the sealed cooperation of first sealing washer with the lateral surface of adapter sleeve, and motor device passes through the sealed cooperation of second sealing washer with the lower extreme of adapter sleeve.

Through adopting above-mentioned scheme, be provided with the elasticity pothook on the toothbrush head, be provided with the hook piece that supplies elasticity pothook hook to establish on the connecting sleeve to the connecting sleeve is connected with the toothbrush head is detachable, and the lower extreme of connecting sleeve is connected with the mounting bracket through joint or the fixed mode of screw, and the sealed of the handle body and the lateral surface of connecting sleeve is realized to first sealing washer, and the second sealing washer realizes that motor device is sealed with the lower extreme of connecting sleeve, and water can not enter the inner casing like this, protects electrical components.

The utility model discloses a further setting is: the upper end of shell body is provided with connecting portion, connecting portion press from both sides and locate between upper end cover and the interior casing, and connecting portion respectively with upper end cover and interior casing ultrasonic welding, first sealing washer clamp locate between upper end cover and connecting portion, and the inner circle of first sealing washer is inconsistent with the lateral surface of adapter sleeve, and the second sealing washer clamp is located between adapter sleeve and the motor device, and the output shaft of motor device runs through the setting of second sealing washer.

By adopting the above scheme, adopt ultrasonic bonding between upper end cover, shell body and the interior casing, welding strength is high, the leakproofness is good, with low costs, first sealing washer and second sealing washer position reasonable in design, and the installation is stable.

The utility model discloses a further setting is: the motor device is fixed to be set up on the mounting bracket, still is equipped with total circuit board and battery on the mounting bracket, is provided with button switch and display screen on the total circuit board, is provided with the clear cover on the interior casing, and the clear cover is provided with the switch dowel steel that can take place elastic deformation corresponding button switch department, and the shell body is provided with the button corresponding switch dowel steel department, still is equipped with the lamp circuit board of taking LED on the mounting bracket, still press from both sides between connecting portion and the interior casing and locate the light guide plate, the light guide plate upper end pastes the setting with the connecting portion, and the lower extreme of light guide plate stretches into interior casing and is close to the setting of lamp circuit board.

Through adopting above-mentioned scheme, the battery is for can being ordinary battery, also can be rechargeable battery, the battery is total circuit board, motor and lamp circuit board power supply, press button accessible switch dowel steel and drive button switch, steerable motor device operation and LED lamp are bright, the display screen shows through transparent cover plate and transparent shell body, the LED lamp of lamp circuit board is luminous, light leads the light through the light guide plate, form the aureole through transparent shell body again, play the indicating action, moreover, the steam generator is simple in structure, and reasonable in design.

The utility model discloses a further setting is: the two rows of the bristle bodies are distributed in the length direction of the handle body, the two rows of the bristle bodies are located on two sides of the transmission rod, a transmission gear is arranged at each bristle body, the two racks are arranged and correspond to the transmission gears, and the transmission rod can drive the two rows of the bristle bodies to rotate simultaneously in a reciprocating mode.

Through adopting above-mentioned scheme, the transfer line can drive two rows of bristle bodies simultaneously and rotate like this for overall structure is compacter, make full use of installation space.

The utility model discloses a further setting is: the transmission gear is located the toothbrush head, and the transmission gear goes up the circumference linkage and is provided with the transmission shaft, and the transmission shaft stretches out the toothbrush head setting, rotates the seat overcoat in the transmission shaft, rotates the seat through sealed flexible glue and toothbrush head seal fit, and sealed flexible glue is fixed to be set up on brushing teeth.

Through adopting above-mentioned scheme, drive gear passes through the transmission shaft and drives to rotate the seat and rotate, rotates the overcoat of seat tight fit in the transmission shaft, the dismouting of being convenient for, consequently can change different brush hair bodies as required, and sealed flexible glue plays sealed effect, and water is difficult for getting into in the toothbrush head.

The present invention will be further described with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a schematic cross-sectional structure diagram of an embodiment of the present invention;

FIG. 3 is a schematic view of a toothbrush head construction;

FIG. 4 is a schematic view of the engagement structure of the transmission rod, the rotary seat and the bristle body;

FIG. 5 is a schematic view of the engagement structure of the handle and the hook cover;

FIG. 6 is a schematic view of the driving assembly and the transmission rod;

FIG. 7 is a schematic structural diagram of a driving seat;

FIG. 8 is a schematic view of the drive rod;

FIG. 9 is a schematic view of the drive rod;

FIG. 10 is an enlarged view of section A of FIG. 2;

FIG. 11 is an enlarged view of the portion B of FIG. 2;

FIG. 12 is a schematic view of a fitting structure of the connecting sleeve and the mounting frame;

fig. 13 is a schematic structural view of the connecting sleeve and the hook sleeve;

FIG. 14 is a schematic structural view of a transparent cover plate;

fig. 15 is an enlarged schematic view of the portion C of fig. 2.

Detailed Description

As shown in fig. 1-15, an electric toothbrush comprises a handle 1 and a toothbrush head 2, the toothbrush head 2 is detachably mounted on the handle 1, the toothbrush head 2 is provided with a plurality of bristles 31, the bristles 31 are composed of a plurality of bristles, the bristles are not necessarily perpendicular to the outer surface of the toothbrush head 2, and can be inclined at a certain angle, the bristles 31 are rotatably mounted on the toothbrush head 2 through a rotating base 32, the bristles 31 are fixedly mounted on the rotating base 32, a transmission rod 4 is slidably mounted in the toothbrush head 2 along the length direction of the handle 1, the transmission rod 4 is slidably guided by a structure of matching a sliding block and a sliding groove, the rotating base 32 is provided with a transmission gear 33 in a circumferential direction in a linkage manner, the transmission rod 4 is provided with a rack 41 meshed with the transmission gear 33, the transmission rod 4 is movable to drive the rotating base 32 to rotate, the handle 1 is provided with a driving component for driving the transmission rod 4 to reciprocate, the driving assembly comprises a motor device 51, a driving seat 52, a driving rod 53, a first return spring 54 and a second return spring 55, the motor device 51 is fixedly arranged in the handle body 1, the motor device 51 can have a speed reduction function, and can also comprise a motor and a speed reduction structure, so as to reduce the rotating speed of an output shaft of the motor device 51, the driving seat 52 is rotatably arranged in the handle body 1, a central shaft of the driving seat 52 is arranged along the length direction of the handle body 1, the output shaft of the motor device 51 can drive the driving seat 52 to rotate, the driving rod 53 is arranged on the handle body 1 in a guiding and sliding manner along the length direction of the handle body 1, the end surface of the driving rod 53 and the end surface of the driving rod 4 are arranged in an abutting manner, a plurality of spherical bulges 521 are integrally or separately arranged on the end surface of one side close to the driving rod 53 of the driving seat 52, each spherical bulge 521 is distributed along the circumferential direction of the driving seat 52 at intervals, a spherical groove 531 matched with the spherical bulge 52 is arranged on the end surface of the corresponding driving rod 53, when the spherical protrusion 521 rotates away from the spherical groove 531, the driving seat 52 can drive the driving rod 53 and the transmission rod 4 to move towards the toothbrush head 2; when the spherical protrusion 521 rotates into the spherical groove 531, the first return spring 54 and the second return spring 55 can respectively drive the driving rod 53 and the transmission rod 4 to move away from the toothbrush head. It is of course also possible that the driving seat 52 is provided with a spherical recess on one end face close to the driving rod 53, and a corresponding spherical projection is provided on the end face of the driving rod 53. The number of the spherical protrusions and the spherical grooves can be determined according to actual needs.

In this embodiment, the first return spring 54 is sleeved on the driving rod 53, one end of the first return spring 54 abuts against the driving rod 53, the other end abuts against the handle 1, the second return spring 55 is sleeved on the driving rod 4, one end of the second return spring 54 abuts against the driving rod 4, and the other end abuts against the toothbrush head 2.

In this embodiment, a limiting structure for limiting the moving distance of the transmission rod 4 is arranged between the toothbrush head 2 and the transmission rod 4, the limiting structure comprises a limiting groove 42 arranged on the transmission rod 4, a limiting block 21 is arranged on the toothbrush head 2 corresponding to the limiting structure, the limiting block 21 is inserted into the limiting groove 42 and can move back and forth along the limiting groove 42, and the limiting block 21 abuts against the end of the limiting groove 42 to limit the movement of the transmission rod 4. Of course, it may be: the transmission rod is provided with a limiting block, and the toothbrush head is provided with a limiting groove.

In this embodiment, the output shaft of the motor device 51 is arranged along the length direction of the handle body 1, and the driving seat 52 is tightly sleeved on the output shaft of the motor device 51 to realize synchronous rotation of the two.

In this embodiment, the handle 1 includes an upper end cap 11, a lower end cap 12, an inner shell 13 and an outer shell 14, the outer shell 14 is sleeved on the inner shell 13, wherein the outer shell 14 is a transparent shell, the upper ends of the inner shell 13 and the outer shell 14 are respectively sealed and matched with the upper end cap 11, and the lower ends of the inner shell 13 and the outer shell 14 are respectively sealed and matched with the lower end cap 12.

In this embodiment, an installation frame 15 is fixedly arranged in the inner housing 13, a connection sleeve 6 detachably connected with the toothbrush head 2 is arranged on the handle body 1, a hook sleeve 7 is fixedly arranged on the toothbrush head 2, an elastic hook 71 is arranged on the hook sleeve 7, a hook block 61 hooked by the elastic hook 71 is arranged on the outer side surface of the connection sleeve 6, so that the connection sleeve 6 is detachably connected with the hook sleeve 7, the lower end of the connection sleeve 6 is fixedly connected with the installation frame 15 through a clamping connection or a screw connection, an installation cavity 62 for installing a driving seat 52 and a driving rod 53 is arranged in the connection sleeve 6, the motor device 51 is arranged at the lower end of the connection sleeve 6, the handle body 1 is in sealing fit with the outer side surface of the connection sleeve 6 through a first sealing ring 81, and the motor device 51 is in sealing fit with the lower end of the connection sleeve 6 through a second sealing ring 82.

In this embodiment, a connecting portion 141 is integrally provided at the upper end of the outer housing 14, the connecting portion 141 is interposed between the upper end cover 11 and the inner housing 13, the connecting portion 141 is ultrasonically welded to the upper end cover 11 and the inner housing 13, the first sealing ring 81 is interposed between the upper end cover 11 and the connecting portion 141, an inner ring of the first sealing ring 81 abuts against an outer side surface of the connecting sleeve 6, the second sealing ring 82 is interposed between the connecting sleeve 6 and the motor device 51, and an output shaft of the motor device 51 is disposed to penetrate through the second sealing ring 82.

In this embodiment, the motor device 51 is fixedly disposed on the mounting frame 15, the mounting frame 15 is further provided with a main circuit board 91 and a battery 92, the main circuit board 91 is provided with a button switch 93 and a display screen 94, the inner housing 13 is provided with a transparent cover plate 16, the transparent cover plate 16 is provided with a switch dowel bar 161 capable of elastically deforming at a position corresponding to the button switch 93, the outer housing 14 is provided with a button 95 at a position corresponding to the switch dowel bar 161, the mounting frame 15 is further provided with a lamp circuit board 96 with an LED, the connecting portion 141 and the inner housing 13 are further clamped between the light guide plate 97, the upper end of the light guide plate 97 is attached to the connecting portion 141, and the lower end of the light guide plate 97 extends into the inner housing 13 and is disposed close to the lamp circuit board 96.

In this embodiment, two rows of bristle bodies 31 are arranged and distributed along the length direction of the handle 1, the two rows of bristle bodies 31 are located at two sides of the transmission rod 4, a transmission gear 33 is arranged at each bristle body 31, two racks 41 are arranged and arranged corresponding to the transmission gears 33, and the transmission rod 4 reciprocates to drive the two rows of bristle bodies 31 to rotate at the same time.

In this embodiment, the driving rod 53 is provided with a rectangular block 532, the connecting sleeve 6 is provided with a rectangular through hole 63 along the length direction of the driving rod 53, and the rectangular block 532 is inserted into the rectangular through hole 63 to realize the guiding sliding of the driving rod 53. Of course, the guide block and guide groove structure may be adopted.

In this embodiment, the transmission gear 33 is located in the toothbrush head 2, the transmission gear 33 is provided with the transmission shaft 34 in a circumferential direction in a linkage manner, the transmission shaft 34 extends out of the toothbrush head 2, the rotating seat 32 is externally sleeved on the transmission shaft 34, the rotating seat 32 is in sealing fit with the toothbrush head 2 through the soft sealing glue 84, and the soft sealing glue 84 is fixedly arranged on the toothbrush head 2.

In this embodiment, the lower end cap 12 is fixedly connected to the mounting frame 15 by screwing screws, and the outer housing 14 and the lower end of the inner housing 13 are sealed by pressing the third sealing ring 83 against the lower end cap 12.

The above embodiments are only preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.

Claims (10)

1. The utility model provides an electric toothbrush, includes the handle body and toothbrush head, toothbrush head detachable installs on the handle body, is provided with a plurality of brush hair body on the toothbrush head, brush hair body rotates through rotating the seat and sets up on the toothbrush head, and brush hair body installs on rotating the seat, it is provided with the transfer line to slide along the length direction of the handle body in the toothbrush head, rotates and is provided with drive gear in the linkage on the seat, is provided with the rack with drive gear looks interlock on the transfer line, and the transfer line removes and can drives and rotate the seat and rotate, be provided with drive transmission line reciprocating motion's drive assembly on the handle body, its characterized in that: the driving assembly comprises a motor device, a driving seat, a driving rod, a first return spring and a second return spring, the motor device is fixedly arranged in the handle body, the driving seat is rotatably arranged in the handle body, a central shaft of the driving seat is arranged along the length direction of the handle body, an output shaft of the motor device can drive the driving seat to rotate, the driving rod is arranged on the handle body in a guiding and sliding manner along the length direction of the handle body, the driving rod and the driving rod are arranged in a mutually abutting manner, a spherical bulge or a spherical groove is arranged on the end surface of one side, close to the driving rod, of the driving seat, a spherical groove or a spherical bulge is arranged on the end surface of the driving rod corresponding to the driving rod, and when the spherical bulge rotates away from the spherical groove, the driving seat can drive the driving rod and the driving rod to move towards the direction close to the toothbrush head; when the spherical bulge is turned into the spherical groove, the first return spring and the second return spring can respectively drive the driving rod and the transmission rod to move towards the direction far away from the toothbrush head.

2. An electric toothbrush according to claim 1, wherein: the driving seat is integrally or separately provided with a plurality of spherical bulges on the end surface of one side close to the driving rod, the spherical bulges are distributed at intervals along the circumferential direction of the driving seat, and the end surface of the driving rod close to the driving seat is provided with a spherical groove matched with the spherical bulges.

3. An electric toothbrush according to claim 1 or 2, wherein: the first return spring is sleeved outside the driving rod, one end of the first return spring abuts against the driving rod, the other end of the first return spring abuts against the handle body, the second return spring is sleeved outside the transmission rod, one end of the second return spring abuts against the transmission rod, and the other end of the second return spring abuts against the toothbrush head.

4. An electric toothbrush according to claim 1 or 2, wherein: the toothbrush is characterized in that a limiting structure for limiting the moving distance of the transmission rod is arranged between the toothbrush head and the transmission rod, the limiting structure comprises a limiting block or a limiting groove arranged on the transmission rod, a limiting groove or a limiting block is arranged on the toothbrush head corresponding to the limiting structure, the limiting block is inserted into the limiting groove and can move back and forth along the limiting groove, and the limiting block abuts against the end part of the limiting groove to limit the movement of the transmission rod.

5. An electric toothbrush according to claim 1 or 2, wherein: the handle body includes upper end cover, lower extreme cover, interior casing and shell body, the shell body overcoat is in interior casing, and wherein the shell body is transparent casing, and the upper end of interior casing and shell body is sealed cooperation with the upper end cover respectively, and the lower extreme of interior casing and shell body is sealed cooperation with the lower extreme cover respectively.

6. An electric toothbrush according to claim 5, wherein: the interior fixed mounting bracket that is provided with of inner casing, be provided with the adapter sleeve of being connected with the toothbrush head is detachable on the handle body, adapter sleeve and mounting bracket fixed connection are provided with the installation cavity that supplies driving seat and actuating lever installation in the adapter sleeve, and motor device sets up the lower extreme department at the adapter sleeve, and the handle body passes through the sealed cooperation of first sealing washer with the lateral surface of adapter sleeve, and motor device passes through the sealed cooperation of second sealing washer with the lower extreme of adapter sleeve.

7. An electric toothbrush according to claim 6, wherein: the upper end of shell body is provided with connecting portion, connecting portion press from both sides and locate between upper end cover and the interior casing, and connecting portion respectively with upper end cover and interior casing ultrasonic welding, first sealing washer clamp locate between upper end cover and connecting portion, and the inner circle of first sealing washer is inconsistent with the lateral surface of adapter sleeve, and the second sealing washer clamp is located between adapter sleeve and the motor device, and the output shaft of motor device runs through the setting of second sealing washer.

8. An electric toothbrush according to claim 7, wherein: the motor device is fixed to be set up on the mounting bracket, still is equipped with total circuit board and battery on the mounting bracket, is provided with button switch and display screen on the total circuit board, is provided with the clear cover on the interior casing, and the clear cover is provided with the switch dowel steel that can take place elastic deformation corresponding button switch department, and the shell body is provided with the button corresponding switch dowel steel department, still is equipped with the lamp circuit board of taking LED on the mounting bracket, still press from both sides between connecting portion and the interior casing and locate the light guide plate, the light guide plate upper end pastes the setting with the connecting portion, and the lower extreme of light guide plate stretches into interior casing and is close to the setting of lamp circuit board.

9. An electric toothbrush according to claim 1 or 2, wherein: the two rows of the bristle bodies are distributed in the length direction of the handle body, the two rows of the bristle bodies are located on two sides of the transmission rod, a transmission gear is arranged at each bristle body, the two racks are arranged and correspond to the transmission gears, and the transmission rod can drive the two rows of the bristle bodies to rotate simultaneously in a reciprocating mode.

10. An electric toothbrush according to claim 1 or 2, wherein: the transmission gear is located the toothbrush head, and the transmission gear goes up the circumference linkage and is provided with the transmission shaft, and the transmission shaft stretches out the toothbrush head setting, rotates the seat overcoat in the transmission shaft, rotates the seat through sealed flexible glue and toothbrush head seal fit, and sealed flexible glue is fixed to be set up on brushing teeth.

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