TWM635033U - electric toothbrush - Google Patents

Abstract

This creation proposes an electric toothbrush, which includes a front end of a handle that is integrally formed or assembled with a brush handle. The clamping parts are detachably clamped together, so that the frontmost brush head can be assembled on the brush handle or replaced after being disassembled, which improves the disadvantage of conventional electric toothbrushes that the brush head must be replaced together with the brush handle. Furthermore, a vibrating device is provided inside the brush handle, so that the vibrating element of the vibrating device is closer to the brush head, which improves the disadvantage of the conventional vibrating motor in the handle that the vibrating effect of the bristles is weakened due to the too far distance from the vibration force transmitted to the brush head. The cleaning efficiency and cleanliness of electric toothbrushes.

Description

electric toothbrush

This invention relates to the technical field of electric toothbrushes, especially an electric toothbrush that can replace the front brush head and clean teeth more efficiently.

One of the known electric toothbrushes is called a sonic vibration toothbrush, which is equipped with a battery, a vibration motor and a power switch on the handle, so that when the user presses the power switch, the vibration motor can be controlled to start or stop. When the vibration motor starts, it drives the vibration element of its rotating shaft through high-speed rotation. The vibration element is usually eccentrically combined with the rotating shaft, so it can generate high-frequency vibration. The front end of the handle is then clamped to the rear end of a brush handle, and the front end of the brush handle is integrally formed with a brush head, and a plurality of bristles are implanted on one side of the brush head. Therefore, the vibration effect of the handle will be transmitted to the brush head and the bristles through the handle, and when the user touches the bristles to the teeth, the function of vibrating and cleaning the tooth surface will be achieved.

Yet above-mentioned conventional electric toothbrush has two main shortcoming: (1) brush head must be changed together with brush handle. The front end of the above-mentioned brush handle is integrally formed with a brush head, and the brush head is implanted with a plurality of bristles. When the user wants to replace the brush head, he only needs to separate the rear end of the brush handle from the front end of the handle to replace it.

However, like this, a very long section of the brush handle must be discarded together, and the manufacturing cost of the brush head containing the brush handle is relatively high, and the relative replacement cost for consumers also becomes high. (2) The shock force transmitted to the bristles by the vibration motor is reduced. The above-mentioned vibrating motor is installed in the handle, and its vibration force is transmitted to the brush handle through the connecting structure, and then transmitted to the brush head and bristles from the brush handle. The farther the transmission distance is, the lower the relative vibration amplitude is, thus affecting the cleaning efficiency of the bristles. and effects.

The purpose of this creation is to provide an electric toothbrush, which solves the problems of high replacement cost of conventional electric toothbrushes and poor cleaning effect due to the long transmission distance of vibration force, so that the brush head and handle can be combined and separated at will, reducing the need for replacement by consumers. cost, and the benefits of cleaning teeth more efficiently and cleaner.

In order to achieve the above-mentioned purpose, the preferred technical scheme of the electric toothbrush of the present invention includes: a handle, which has a battery chamber for installing a battery inside, and a power switch is provided at one side or the rear end thereof, and the power switch is connected to the The battery and a vibrating device; a brush handle, the rear end of which is integrally formed or assembled at the front end of the handle, a connector is formed at the front end, and a first clamping part is provided on one side of the connector; and a brush The head has a plurality of bristles at its front end, and a second clamping part at its rear end, which can be clamped on the first clamping part, so that the brush head can be assembled on the connecting head; the second clamping part The connection part can also be disengaged from the first clamping part, so that the brush head can be separated from the connection head.

In the above-mentioned electric toothbrush, the first clamping part of the connector has a clamping hole recessed on one side of the connector; the second clamping part of the brush head has a clamping shaft, and the clamping shaft can The clamping is arranged in the clamping hole, and the clamping shaft can also be disengaged from the clamping hole.

In the above-mentioned electric toothbrush, the hole wall of the clamping hole is radially recessed with a guide groove and a clamping groove, and the guide groove extends axially from the entrance end of the clamping hole to the bottom end of the clamping hole, The locking groove is adjacent to one side of the guide groove; the locking shaft has a locking shrapnel extending axially, and the outer surface of the locking shrapnel has a locking protrusion; and the locking shaft of the brush head can be inserted into the carding hole, and at the same time, the carding shrapnel can be inserted into the guide groove. Turning the brush head can cause the carding shrapnel to be transferred to the carding groove, and the carding protrusion is locked on the card. On the contrary, the brush head can be reversely rotated, so that the locking shrapnel and the locking projection are transferred from the locking groove to the guide groove, so that the brush head can be separated from the front section of the brush handle.

In the above-mentioned electric toothbrush, the hole wall of the clamping hole is provided with two guide grooves and two clamping grooves; Detent bumps.

In the above-mentioned electric toothbrush, the clamping shaft is a tube body, and the tube body is provided with two slots, and the latch spring is formed between the two slots.

In the above-mentioned electric toothbrush, the vibrating device has a motor and a vibrating element arranged in the brush handle, the motor is connected to the power switch, and the vibrating element is combined with a rotating shaft of the motor.

In the above-mentioned electric toothbrush, the rear end of the handle has a chamber, and the chamber extends to be adjacent to the connecting head, and the motor is arranged in the chamber, and the vibrating element is located at an end adjacent to the connecting head.

In the above-mentioned electric toothbrush, the front end of the handle is inserted and assembled into the chamber of the handle.

In the above electric toothbrush, the rear end of the handle has a battery cover covering the battery chamber.

In the electric toothbrush mentioned above, the battery is a primary battery or a rechargeable battery.

The electric toothbrush of this creation can achieve the following effects:

(1) The brush head and the brush handle can be combined and separated arbitrarily. This creation uses the technical characteristics of the first clamping part of the connecting head and the second clamping part at the rear end of the brush head, so that the brush head of the electric toothbrush can be combined with the brush handle and separated, and a new brush head or a different one can be replaced. Bristles or unshaped brush heads.

(2) Reduce replacement costs for consumers. In this creation, the brush head is replaced from the front end, and the brush handle does not need to be replaced together. Therefore, the manufacturing cost of the brush head is relatively low, and the replacement cost for consumers is relatively reduced.

(3) Cleaning teeth is more efficient and cleaner. The vibrating device in this invention is arranged in the brush handle, and the vibrating element is closer to the brush head, so that the vibration amplitude of the brush head and the bristles can be increased, and the conventional shortcoming that the vibrating force is weakened due to the transmission distance can be overcome, and more Clean teeth efficiently and more cleanly.

The technical features, functions and purposes of this creation are described in detail as follows according to the embodiments of the accompanying drawings:

Referring to Fig. 1 and shown in Fig. 2, the electric toothbrush of this creation, its preferred embodiment comprises a handle 10, a vibrating device 20, a brush handle 30 and a brush head 40, wherein:

The handle 10 is mainly a rod made of plastic, and its hollow internal structure has a battery chamber 11 for installing a battery 50. electricity. One side or rear end of the handle 10 is provided with a power switch 12, the power switch 12 can be a mechanical push switch, a touch switch or other types of switches, so that the power switch 12 is connected to the battery 50 and the vibration The device 20 further provides the user to control the start or stop of the vibration device 20 . When the electric toothbrush of this invention is implemented as being suitable for a primary battery, the rear end of the handle 10 is implemented with a detachable and combined battery cover 13, which is convenient for the user to replace the primary battery; as for the battery chamber 11 and the battery cover 13 and the The structure of the connection of the battery 50 is a well-known technical means, and will not be described in detail.

The vibrating device 20 mainly has a motor 21 and a vibrating element 22 arranged in the brush handle 30, the motor 21 is connected to the above-mentioned power switch 12 through a power line, and the vibrating element 22 is combined with the motor 21. The rotating shaft enables the motor 21 to drive the vibrating element 22 to rotate together at a high speed, thereby generating high-frequency vibration.

Referring to Fig. 3, the brush handle 30 is an element for the user to extend the brush head 40 into the oral cavity. The front end of the handle 10 is integrally formed with a connector 31, especially in the present invention, a first clamping part 32 is implemented on one side of the connector 31, and the function of the first clamping part 32 is to communicate with the connector 31. The brush head 40 is combined or separated.

The brush head 40 and the above-mentioned brush handle 30 are the first main technical features of this creation. The front end of the brush head 40 has a plurality of bristles 41, and the rear end of the brush head 40 implements a second clamping part 42. Through the first The second clamping part 42 can be clamped on the above-mentioned first clamping part 32, so that the brush head 40 can be assembled to the connecting head 31 at the front end of the brush handle 30; and the second clamping part 42 can also be separated from the above-mentioned first clamping part 32 A clamping portion 32 enables the brush head 40 to be separated from the connecting head 31 . Therefore, the present invention can achieve the advantage of replacing the brush head 40 from the front end without having to replace the brush handle 30 together.

Referring again to Fig. 1, Fig. 3 and Fig. 4, one of the preferred embodiments of the first clamping part 32 of the above-mentioned connector 31 has a clamping hole 321 recessed on one side of the connector 31, and The second clamping portion 42 of the brush head 40 is correspondingly implemented with a clamping shaft 421, so that the clamping shaft 421 can be clamped in the clamping hole 321, and the clamping shaft 421 can also be disengaged from the clamping The connecting hole 321 achieves the function that the brush head 40 can be combined with or separated from the front end of the brush handle 30 for replacement.

More specifically, the hole wall of the clamping hole 321 is radially recessed with a guide groove 322 and a clamping groove 323, and the guide groove 322 extends axially from the entrance end of the clamping hole 321 to the clamping hole. At the bottom end of 321, the locking groove 323 is adjacent to one side of the guide groove 322, but it does not extend to the inlet end of the locking hole 321, but only forms a small radially recessed structure in the hole wall. The locking shaft 421 of the brush head 40 has a locking elastic piece 422 extending axially, and the outer surface of the locking elastic piece 422 has a locking projection 423 . As shown in FIG. 4 , the wall of the clamping hole 321 is provided with two guide grooves 322 and two clamping grooves 323 , and the clamping shaft 421 is correspondingly provided with two clamping elastic pieces 422 , And the locking protrusions 423 respectively located on the locking elastic pieces 422 . Furthermore, the clamping shaft 421 can be implemented as a tube body, and the tube wall of the tube body is provided with two slots 424 , and furthermore, the locking elastic piece 422 structure is formed between the two slots 424 .

Referring to FIG. 3 and FIG. 4 , the locking shaft 421 of the brush head 40 can be inserted into the locking hole 321 by the user, and the locking elastic piece 422 is inserted into the guide groove 322 at the same time. Referring to FIG. 5 , when the user rotates the brush head 40 , the engaging elastic piece 422 can be turned to the engaging groove 323 , and the engaging protrusion 423 is engaged in the engaging groove 323 . , so that the brush head 40 and the connecting head 31 are firmly locked together, and will not be easily loosened and separated. Conversely, the brush head 40 can also be reversely rotated by the user, so that the engaging elastic piece 422 and the engaging protrusion 423 rotate from the engaging groove 323 to the guiding groove 322 (as shown in FIG. 4 ), The locking shaft 421 of the brush head 40 can be pulled out from the locking hole 321 (as shown in FIG. 3 ), so as to replace another brush head 40 .

Referring to Fig. 1 again, in order to achieve the above-mentioned purpose that the vibrating device 20 is closer to the brush head 40, the rear end of the brush handle 30 is integrally formed with a chamber 33, and the chamber 33 extends to the front end to be adjacent to the connection. At the head 31, the motor 21 of the above-mentioned vibrating device 20 is arranged in the chamber 33, so that the vibrating element 22 is adjacent to the connecting head 31 and the brush head 40, so that the vibration amplitude of the brush head 40 and the bristles 41 Larger, overcomes the conventional shortcoming that the vibration force is weakened due to the transmission distance, and can clean teeth more efficiently and cleanly. The chamber 33 also has another function. When the brush handle 30 implements the embodiment of being assembled with the handle 10, the chamber 33 can be used as a connection structure with the handle 10, so that the front end of the handle 10 mentioned above An inserting portion 14 is inserted and assembled at the rear end of the chamber 22 of the brush handle 30 .

The invention has been disclosed above with a preferred embodiment, but those skilled in the art should understand that the embodiment is only used to describe the invention, and should not be construed as limiting the scope of the invention. It should be noted that all changes and replacements equivalent to the embodiments should be included in the scope of this creation. Therefore, the scope of protection of this creation should be defined by the scope of the patent application.

10: Grip 11: Battery room 12: Power switch 13: Battery cover 14: socket part 20: Vibration device 21: motor 22: Vibration element 30: Brush handle 31: connector 32: The first clamping part 321: card connection hole 322: guide groove 323: snap slot 33: Containment room 40: brush head 41: Bristles 42: The second clamping part 421: snap shaft 422: snap shrapnel 423: locking bump 424: Grooving 50: battery

Fig. 1 is a schematic cross-sectional view of a preferred embodiment of the electric toothbrush of the present invention. Fig. 2 is a schematic side view of a preferred embodiment of the electric toothbrush of the present invention. Fig. 3 is a schematic diagram of the combination and separation of the brush head and the connecting head of the present invention. Fig. 4 is a schematic cross-sectional view of the clamping shaft of the inventive brush head inserted into the clamping hole. Fig. 5 is a schematic diagram of the movement of the brush head in Fig. 4 of the present invention to form a clamping connection after being rotated.

10: Grip

12: Power switch

14: socket part

20: Vibration device

21: motor

22: Vibration element

30: Brush handle

31: connector

32: The first clamping part

321: card connection hole

322: guide groove

323: snap slot

33: Containment room

40: brush head

41: Bristles

42: The second clamping part

421: snap shaft

422: snap shrapnel

423: locking bump

424: Grooving

Claims (10)

An electric toothbrush comprising: A handle, which has a battery chamber for installing a battery inside, and a power switch is provided on one side or the rear end, and the power switch is connected to the battery and a vibrating device; A brush handle, the rear end of which is integrally formed or assembled at the front end of the handle, the front end of which forms a connector, and one side of the connector is provided with a first locking part; and A brush head has a plurality of bristles at its front end, and a second clamping part at its rear end, and the second clamping part can be clamped on the first clamping part, so that the brush head can be assembled on the connecting head; The second clamping part can also be disengaged from the first clamping part, so that the brush head can be separated from the connecting head. The electric toothbrush according to claim 1, wherein the first clamping part of the connector has a clamping hole recessed on one side of the connector; the second clamping part of the brush head has a clamping shaft, The clamping shaft can be clamped in the clamping hole, and the clamping shaft can also be disengaged from the clamping hole. The electric toothbrush as described in claim 2, wherein the hole wall of the clamping hole is radially recessed with a guide groove and a clamping groove, and the guide groove extends axially from the entrance end of the clamping hole to the clamping The bottom end of the hole, the locking groove is adjacent to one side of the guide groove; the locking shaft has a locking elastic piece extending axially, and the outer surface of the locking elastic piece has a locking protrusion; and The clamping shaft of the brush head can be inserted into the clamping hole, and at the same time, the clamping shrapnel can be inserted into the guide groove. Turning the brush head can cause the clamping spring to be transferred to the clamping groove, and make the clamping The protrusion is fixed in the engaging groove; otherwise, the brush head can be reversely rotated, so that the locking shrapnel and the locking protrusion are transferred from the engaging groove to the guide groove, so that the brush head can be connected with the brush The anterior part of the shank is separated. The electric toothbrush as described in claim 3, wherein the hole wall of the engaging hole is provided with two guide grooves and two engaging grooves; The locking protrusion of the locking spring. The electric toothbrush as described in Claim 4, wherein the clamping shaft is a tube body, and the tube body is provided with two slots, and the latch spring is formed between the two slots. The electric toothbrush according to claim 1, wherein the vibrating device has a motor and a vibrating element arranged in the brush handle, the motor is connected to the power switch, and the vibrating element is combined with a rotating shaft of the motor. The electric toothbrush according to claim 6, wherein the rear end of the handle has a chamber, the chamber extends to be adjacent to the connector, and the motor is disposed in the chamber, the vibrating element is located adjacent to the connector one end. The electric toothbrush according to claim 7, wherein the front end of the handle is inserted and assembled into the chamber of the handle. The electric toothbrush according to claim 1, wherein the rear end of the handle has a battery cover covering the battery chamber. The electric toothbrush according to claim 8, wherein the battery is a primary battery or a rechargeable battery.

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