An electric toothbrush

Abstract

The present invention relates to an electric toothbrush, comprising a handle body and a toothbrush head, wherein the toothbrush head comprises a base and a rotating cover, wherein the base is connected to the handle body, the rotating cover is rotatably arranged on the base, a plurality of first bristle bodies are fixedly arranged on the rotating cover, the base is provided with at least one guide groove, a second bristle body is slidably arranged on the base at the guide groove, an inclined hole for the second bristle body to pass through is arranged on the rotating cover, the rotating cover can contact the second bristle body through the inner wall of the inclined hole while rotating, thereby driving the second bristle body to slide along the guide groove, and a driving component for driving the rotating cover to rotate is arranged between the handle body and the toothbrush head. The above scheme has a simple structure, is comfortable to use, and has a better cleaning effect.

Description

Technical Field

[0001] The invention relates to the technical field of toothbrushes, in particular to an electric toothbrush. Background Art

[0002] In daily life, people use toothbrushes to clean their mouths. However, manual toothbrushes often fail to clean teeth properly. Irregular manual operation strength and movements can cause bleeding gums and wear of tooth enamel. Electric toothbrushes are now available on the market, which include a handle and a toothbrush head. The rapid rotation or vibration of the motor core in the handle drives the toothbrush head to generate high-frequency vibrations, which are then transmitted to the bristles of the toothbrush head for brushing. However, the bristles transmit the vibrations to the teeth, which can cause a numb feeling in the teeth and are not comfortable enough. Summary of the invention

[0003] The present invention overcomes the shortcomings of the prior art and provides an electric toothbrush with a simple structure, comfortable use and better cleaning effect.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an electric toothbrush, comprising a handle body and a toothbrush head, the toothbrush head comprising a base and a rotating cover, the base is connected to the handle body, the rotating cover is rotatably set on the base, a plurality of first bristle bodies are fixedly set on the rotating cover, the base is provided with at least one guide groove, the base is slidably provided with a second bristle body at the guide groove, the rotating cover is provided with an inclined hole for the second bristle body to pass through, the rotating cover can contact the second bristle body through the inner wall of the inclined hole while rotating, thereby driving the second bristle body to slide along the guide groove, and a driving component for driving the rotating cover to rotate is provided between the handle body and the toothbrush head.

[0005] By adopting the above scheme, the first bristle body and the second bristle body are exposed on the rotating cover, the first bristle body and the second bristle body do not have to be perpendicular to the outer surface of the rotating cover, and can also be set at a certain angle, and the sizes of the first bristle body and the second bristle body can be different, and the positions of the settings can be irregular, the rotating seat rotates on the toothbrush head, the driving assembly drives the rotating cover to rotate on the base, the first bristle body on the rotating cover acts on the teeth by rotating, and the rotating cover will drive the second bristle body to slide along the guide groove while rotating, and the second bristle body acts on the teeth by moving, the first bristle body and the second bristle body cooperate with each other to clean the teeth, its structure is simple, more comfortable to use, and the cleaning effect is better. Of course, the toothbrush head can also be pulled off the handle and replaced with a new one.

[0006] A further configuration of the present invention is that the second bristle body is fixed or integrally provided with a guide rod, the guide rod and the guide groove are slidably matched, a limit block is provided at the corresponding inclined hole of the guide rod, the rotating cover is provided with a limit groove for the limit block to move, and the limit groove stops the limit block to limit the second bristle body from leaving the base.

[0007] By adopting the above solution, the guide rod cooperates with the guide groove, the second bristle body can stably slide along the guide groove, the limiting block cooperates with the limiting groove, the second bristle body will not separate from the base, the structure is simple, and the design is reasonable.

[0008] A further configuration of the present invention is that a rotating shaft is arranged on a side of the rotating cover close to the base, a through hole is arranged on the base for the rotating shaft to pass through, an elastic stop block is arranged at the end of the rotating shaft extending out of the through hole, and the elastic stop block abuts against the base to limit the rotating cover from separating from the base.

[0009] By adopting the above scheme, when the rotating shaft passes through the through hole, the elastic stop block will be pressed inward by the inner wall of the through hole and deformed. Once the elastic stop block extends out of the through hole, the elastic stop block resumes its deformation and can contact the base, which can not only realize the stable rotation of the rotating cover, but also limit the rotating cover from separating from the base. The structure is simple and the design is reasonable.

[0010] The present invention is further configured as follows: four guide grooves are provided and are spaced around the through hole, each guide groove is correspondingly provided with a second bristle body, and the rotating cover can drive each second bristle body to slide in the direction of gathering or spreading.

[0011] By adopting the above solution, the position of the guide groove is reasonably designed, and the four second bristle bodies slide in the direction of gathering or spreading under the drive of the rotating cover. Each second bristle body acts on the teeth, and the cleaning effect is better.

[0012] A further configuration of the present invention is: the driving assembly includes a motor device and a driving rod, the motor device is fixedly arranged in the handle body, the driving rod is rotatably arranged on the base along the length direction of the handle body, the output shaft of the motor device can drive the driving rod to rotate, and the driving rod drives the rotating cover to rotate reciprocatingly through the eccentric structure to realize the reciprocating sliding of the second bristle body along the guide groove.

[0013] By adopting the above scheme, the motor device can have its own deceleration function, and can also include a motor and a deceleration structure, so as to reduce the rotation speed of the output shaft. The motor device drives the driving rod to rotate, and the driving rod uses the eccentric structure to drive the rotating cover to rotate reciprocatingly to realize the reciprocating sliding of the second bristle body along the guide groove. The first bristle body and the second bristle body have a better cleaning effect on teeth, and the structure is simple and more reasonable.

[0014] A further configuration of the present invention is: the eccentric structure includes a ball head shaft arranged on the driving rod and a spherical cavity arranged on the rotating cover, the ball head shaft is arranged deviating from the central axis of the driving rod, the ball head shaft is inserted into the spherical cavity, the driving rod drives the ball head shaft to perform eccentric movement, the ball head shaft abuts against the inner wall of the spherical cavity, thereby driving the rotating cover to rotate reciprocatingly.

[0015] By adopting the above solution, a ball head is provided at the end of the ball head shaft, and the ball head is inserted into the spherical cavity. When the ball head shaft makes eccentric motion, it can drive the rotating cover to rotate back and forth by abutting against it, and can also avoid locking. The structure is simple and the design is reasonable.

[0016] A further configuration of the present invention is that the drive assembly further comprises a transmission sleeve, one end of which is circumferentially linked to the output shaft of the motor device, and the other end of which is circumferentially linked to the drive rod and axially pluggable.

[0017] By adopting the above solution, the output shaft of the motor device indirectly drives the driving rod to rotate through the transmission sleeve. When the toothbrush head is inserted into the handle body, the driving rod and the transmission sleeve can be linked to each other, which has a simple structure and is easy to assemble.

[0018] A further configuration of the present invention is that a plug connector is provided at the end of the driving rod, and a socket for plugging the plug connector is provided at the end of the transmission sleeve, the plug connector is plugged into the socket to realize a circumferential linkage connection between the driving rod and the transmission sleeve, the output shaft of the motor device is arranged along the length direction of the handle body, and the end of the transmission sleeve away from the plug connector is tightly fitted onto the output shaft of the motor device.

[0019] By adopting the above scheme, the position of the motor device is reasonably designed, which can reduce the installation space in the width direction of the handle body. The plug connector is arranged in a cross shape, and a cross groove is arranged on the corresponding socket. The drive rod and the transmission sleeve are connected in a circumferential linkage manner through plug-in. The structure is simple and easy to operate. The output shaft of the motor device is tightly fitted and inserted into the transmission sleeve to realize the installation of the transmission sleeve. The structure is simple and easy to install.

[0020] A further configuration of the present invention is that a connector is disposed at the end of the base, an insertion cavity for inserting the connector is disposed at the end of the handle body, and the handle body is snap-connected to the connector.

[0021] By adopting the above solution, the connection structure between the handle and the base is simple, which makes it easy to insert and remove the toothbrush head.

[0022] A further configuration of the present invention is that an elastic card block is provided on the side wall of the connector, a card groove for the elastic card block to be provided on the inner wall of the insertion cavity, a slot or an insertion block is provided on the outer side surface of the connector along the length direction of the handle body, and an insertion block or a slot is provided on the inner wall of the corresponding insertion cavity, and the insertion block and the slot are slidingly matched with each other.

[0023] By adopting the above scheme, the elastic card block can be elastically deformed, and the elastic card block is arranged in the card slot to realize the connection between the toothbrush head and the handle body, and it does not affect the toothbrush head from being separated from the handle body. A slot is arranged on the connecting head, and an insert block is arranged on the insert cavity. The insert block cooperates with the slot, and plays a guiding role when installing the toothbrush head, and can also play a role in limiting the random rotation of the toothbrush head. The structure is simple, the design is reasonable, and it is easy to operate.

[0024] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0026] Figure 2 is a schematic cross-sectional structure diagram of an embodiment of the present invention;

[0027] Figure 3 is a schematic diagram of the structure of a toothbrush head;

[0028] Figure 4 This is a schematic diagram of the exploded structure of a toothbrush head;

[0029] Figure 5 It is a schematic diagram of the matching structure of the driving rod, the rotating cover and the second bristle body;

[0030] Figure 6 It is a schematic diagram of the matching structure of the base and the second bristle body;

[0031] Figure 7 It is a schematic diagram of the connection structure between the base and the rotating cover;

[0032] Figure 8 It is a structural schematic diagram of a rotating cover;

[0033] Fig. 9 is a schematic diagram of the structure of the drive component;

[0034] Fig.10 is a schematic diagram of the structure of the driving rod;

[0035] Fig.11 It is a schematic diagram of the matching structure of the motor device and the transmission sleeve;

[0036] Fig.12 is a schematic diagram of the structure of the handle;

[0037] Fig.13 for Figure 2 A magnified schematic diagram of part A;

[0038] Fig.14 It is a schematic structural diagram of the second bristle body. DETAILED DESCRIPTION

[0039] like Figure 1-Figure 14 As shown, an electric toothbrush comprises a handle body 1 and a toothbrush head 2, wherein the toothbrush head 2 comprises a base 21 and a rotating cover 22, wherein the base 21 is connected to the handle body 1, and the rotating cover 22 is rotatably arranged on the base 21, and a plurality of first bristle bodies 23 are fixedly arranged on the rotating cover 22, wherein the first bristle bodies 23 do not have to be perpendicular to the outer surface of the rotating cover 22, and can also be arranged at a certain angle, and the sizes of the first bristle bodies 23 can be different, and the positions of the first bristle bodies 23 can be irregular, and at least one guide groove 211 is arranged on the base 21, and a second bristle body 3 is slidably arranged at the guide groove 211 of the base 21, and an inclined hole 221 is arranged on the rotating cover 22 for the second bristle body 3 to pass through, and the rotating cover 22 can contact the second bristle body 3 through the inner wall of the inclined hole 221 while rotating, thereby driving the second bristle body 3 to slide along the guide groove 211, and a driving component for driving the rotating cover 22 to rotate is arranged between the handle body 1 and the toothbrush head 2.

[0040] In this embodiment, the second bristle body 3 is fixed or integrally provided with a guide rod 31, the guide rod 31 is inserted into the guide groove 211, the guide rod 31 and the guide groove 211 are slidably matched, the guide rod 31 is fixed or integrally provided with a limit block 32 at the corresponding inclined hole 221, and the rotating cover 22 is provided with a limit groove 222 for the limit block 32 to move, and the limit groove 222 stops the limit block 32 to limit the second bristle body 3 from separating from the base 21.

[0041] In this embodiment, the rotating cover 22 is fixed or integrally provided with a rotating shaft 223 on one side close to the base 21, and the base 21 is provided with a through hole 212 for the rotating shaft 223 to pass through. An elastic stop block 2231 is integrally provided at the end of the rotating shaft 223 extending out of the through hole 212. The elastic stop block 2231 is in contact with the base 21 to limit the rotating cover 22 from separating from the base 21.

[0042] In this embodiment, there are four guide grooves 211, which are spaced around the through hole 212. Two adjacent guide grooves 211 are perpendicular to each other. Each guide groove 211 is respectively provided with a second bristle body 3. The rotating cover 22 can drive each second bristle body 3 to slide in the direction of gathering or spreading. Of course, the direction of the guide groove can be irregular or directional.

[0043] In this embodiment, the driving assembly includes a motor device 41 and a driving rod 42. The motor device 41 is fixedly arranged in the handle body 1. The driving rod 42 is rotatably arranged on the base 21 along the length direction of the handle body 1. The output shaft of the motor device 41 can drive the driving rod 42 to rotate. The driving rod 42 drives the rotating cover 22 to rotate back and forth through the eccentric structure to realize the reciprocating sliding of the second bristle body 3 along the guide groove 211. Of course, the rotating cover can also be driven to rotate back and forth by moving the driving rod along the length of the handle body.

[0044] In this embodiment, the eccentric structure includes a ball head shaft 421 arranged on the driving rod 42 and a spherical cavity 224 arranged on the rotating cover 22. The ball head shaft 421 is arranged to deviate from the central axis of the driving rod 42. The ball head shaft 421 is inserted into the spherical cavity 224. The driving rod 42 drives the ball head shaft 421 to perform eccentric movement. The ball head shaft 421 abuts against the inner wall of the spherical cavity 224, thereby driving the rotating cover 22 to rotate reciprocatingly.

[0045] In this embodiment, the drive assembly further includes a transmission sleeve 43, one end of which is circumferentially linked to the output shaft of the motor device 41, and the other end of the transmission sleeve 43 is circumferentially linked to the drive rod 42 and axially pluggable.

[0046] In this embodiment, a plug connector 422 is integrally provided at the end of the driving rod 42, and a socket 431 for the plug connector 422 to be plugged into is provided at the end of the transmission sleeve 43. The plug connector 422 is plugged into the socket 431 to realize the circumferential linkage connection between the driving rod 42 and the transmission sleeve 43. The output shaft of the motor device 41 is arranged along the length direction of the handle body 1, and the transmission sleeve 43 is tightly fitted onto the output shaft of the motor device 41 at one end away from the plug connector 422.

[0047] In this embodiment, a connector 213 is disposed at the end of the base 21 , and an insertion cavity 11 for inserting the connector 213 is disposed at the end of the handle body 1 , and the handle body 1 is snap-connected to the connector 213 .

[0048] In this embodiment, an elastic block 214 is provided on the side wall of the connector 213, a slot 12 for the elastic block 214 to be fixed is provided on the inner wall of the insertion cavity 11, a slot 215 is provided on the outer surface of the connector 213 along the length direction of the handle 1, and an insert block 13 is provided on the inner wall of the corresponding insertion cavity 11, and the insert block 13 is guided and slidably matched with the slot 215. Of course, the connector 213 may be provided with an insert block, and the inner wall of the corresponding insertion cavity 11 may be provided with a slot.

[0049] The above embodiments are only preferred specific embodiments of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. An electric toothbrush, comprising a handle and a toothbrush head, characterized in that: The toothbrush head includes a base and a rotating cover, the base is connected to the handle body, the rotating cover is rotatably arranged on the base, a plurality of first bristle bodies are fixedly arranged on the rotating cover, the base is provided with at least one guide groove, the base is slidably provided with a second bristle body at the guide groove, the rotating cover is provided with an inclined hole for the second bristle body to pass through, and the rotating cover can contact the second bristle body through the inner wall of the inclined hole while rotating, thereby driving the second bristle body to slide along the guide groove, a driving component for driving the rotating cover to rotate is provided between the handle body and the toothbrush head, and the second bristle body is fixed Or a guide rod is integrally provided, the guide rod and the guide groove are slidably matched, a limit block is provided at the corresponding inclined hole of the guide rod, and a limit groove is provided on the rotating cover for the limit block to move, and the limit groove stops the limit block to limit the second brush body from separating from the base, and the driving assembly includes a motor device and a driving rod, the motor device is fixedly arranged in the handle body, the driving rod is rotatably arranged on the base along the length direction of the handle body, the output shaft of the motor device can drive the driving rod to rotate, and the driving rod drives the rotating cover to rotate reciprocatingly through the eccentric structure to realize the reciprocating sliding of the second brush body along the guide groove.

2. An electric toothbrush according to claim 1, characterized in that: The rotating cover is provided with a rotating shaft on one side close to the base, the base is provided with a through hole for the rotating shaft to pass through, and an elastic stop block is provided at the end of the rotating shaft extending out of the through hole. The elastic stop block abuts against the base to limit the rotating cover from leaving the base.

3. An electric toothbrush according to claim 2, characterized in that: There are four guide grooves, which are spaced and distributed around the through hole. Each guide groove is correspondingly provided with a second bristle body. The rotating cover can drive each second bristle body to slide in the direction of gathering or spreading.

4. An electric toothbrush according to claim 1 or 2, characterized in that: The eccentric structure includes a ball head shaft arranged on the driving rod and a spherical cavity arranged on the rotating cover. The ball head shaft is arranged deviating from the central axis of the driving rod and is inserted into the spherical cavity. The driving rod drives the ball head shaft to perform eccentric movement, and the ball head shaft abuts against the inner wall of the spherical cavity to drive the rotating cover to rotate reciprocatingly.

5. An electric toothbrush according to claim 1 or 2, characterized in that: The drive assembly also includes a transmission sleeve, one end of which is circumferentially linked to the output shaft of the motor device, and the other end of which is circumferentially linked to the drive rod and axially pluggable.

6. An electric toothbrush according to claim 5, characterized in that: A plug connector is provided at the end of the driving rod, and a socket for the plug connector is provided at the end of the transmission sleeve. The plug connector is inserted into the socket to realize a circumferential linkage connection between the driving rod and the transmission sleeve. The output shaft of the motor device is arranged along the length direction of the handle body, and the end of the transmission sleeve away from the plug connector is tightly fitted onto the output shaft of the motor device.

7. An electric toothbrush according to claim 1 or 2, characterized in that: A connector is disposed at the end of the base, and an insertion cavity for inserting the connector is disposed at the end of the handle body, and the handle body is snap-connected with the connector.

8. An electric toothbrush according to claim 7, characterized in that: An elastic card block is arranged on the side wall of the connector, a card groove for the elastic card block to be arranged on the inner wall of the insertion cavity, a slot or an insertion block is arranged on the outer side surface of the connector along the length direction of the handle body, and an insertion block or a slot is arranged on the inner wall of the corresponding insertion cavity, and the insertion block and the slot are slidingly matched with each other.

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