CN-224206924-U - Toothbrush head with balanced gravity center and electric toothbrush

CN224206924UCN 224206924 UCN224206924 UCN 224206924UCN-224206924-U

Abstract

The application relates to the field of electric toothbrushes, and provides a toothbrush head with balanced gravity center and an electric toothbrush, wherein the toothbrush head comprises a first body, a second body and a connecting piece, a brush head assembly is arranged in the first body, the brush head assembly comprises a brush head bracket provided with a fixing groove and a connecting groove and a bristle seat, the bristle seat is fixedly arranged in the connecting groove, and bristles are arranged on the bristle seat; the second body is internally provided with a transmission assembly, the transmission assembly comprises a transmission shaft which is suitable for being inserted into the fixing groove, the connecting piece is suitable for being connected with the other side of the brush head bracket and the transmission shaft in a penetrating way, the connecting piece and the brush hair seat are oppositely positioned on two sides of the transmission shaft, and the connecting piece is oppositely positioned at the bottom of the brush hair seat. The electric toothbrush includes a brush head. According to the application, the connecting piece is fixedly connected with the brush head support and the transmission shaft, the connecting piece and the brush hair seat are oppositely arranged at two sides of the transmission shaft, and the connecting piece is oppositely arranged at the bottom of the brush hair seat, so that the gravity center of the brush head assembly is positioned on the central axis of the transmission assembly, the gravity center of the brush head is balanced better, a balancing weight is not required, and the structure is simple.

Inventors

LI GAITENG
LI FANGMING
ZHOU ZHIHUA
Cheng Tiao
LIU JIE

Assignees

上海飞科电器股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250519
Priority Date: 20240914

Claims (10)

1. A center-of-gravity balanced toothbrush head, comprising: The brush head assembly comprises a brush head support and a brush hair seat, wherein a fixing groove is formed in the bottom of the brush head support, a connecting groove is formed in one side of the brush head support, the brush hair seat is fixedly arranged in the connecting groove, and brush hair is arranged on the brush hair seat; The second body is suitable for being detachably arranged in the toothbrush main body, a transmission assembly is arranged in the second body, and the transmission assembly comprises a transmission shaft suitable for being inserted into the fixed groove; The connecting piece is suitable for being connected with the other side of the brush head support in a penetrating mode and the transmission shaft, the connecting piece and the brush hair seat are oppositely located on two sides of the transmission shaft and are oppositely located at the bottom of the brush hair seat, and accordingly the center of gravity of the brush head assembly is located on the central axis of the transmission assembly.
2. A center-of-gravity balanced toothbrush head according to claim 1 wherein, The connecting groove is communicated with the fixing groove, one side, close to the bristle seat, of the transmission shaft is relatively flush with the bottom of the connecting groove, and the tail end of the connecting piece is relatively positioned at the bottom of the connecting groove.
3. A center-of-gravity balanced toothbrush head according to claim 2 wherein, The brush head support comprises a first support body and a second support body, wherein the second support body is arranged at the bottom of the first support body, one side of the first support body is inwards sunken to form the connecting groove, the top wall of the second support body is the only groove wall of the connecting groove, and the fixing groove axially penetrates through the second support body and at least part of the fixing groove is positioned at the groove bottom of the connecting groove.
4. A center-of-gravity balanced toothbrush head according to claim 3 wherein, The fixed slot comprises a first slot body and a second slot body, the second slot body is arranged in the second frame body, and the first slot body is arranged at the bottom of the first frame body and is positioned at the bottom of the connecting slot relatively.
5. A center-of-gravity balanced toothbrush head according to claim 3 wherein, The brush hair seat is close to one side of first support body still is equipped with first counter weight groove, the cell wall fixed connection of first counter weight groove first support body, make first support body with form first counter weight chamber between the brush hair seat.
6. A center-of-gravity balanced toothbrush head according to any one of claim 3 or 5 wherein, The first frame body is also provided with a plurality of second counterweight grooves, and the second counterweight grooves are symmetrically arranged at the bottom of the connecting groove, so that a second counterweight cavity is formed between the first frame body and the brush head seat.
7. A center-of-gravity balanced toothbrush head according to claim 1 wherein, The brush head support is characterized in that a first connecting hole is formed in the transmission shaft, a second connecting hole is correspondingly formed in the brush head support, and the connecting piece is suitable for penetrating through the first connecting hole and the second connecting hole and fixedly connecting the transmission shaft with the brush head support.
8. A center-of-gravity balanced toothbrush head according to claim 7 wherein, The brush head support is far away from one side of brush hair seat still is equipped with the constant head tank, the first body outside be equipped with the third connecting hole that two connecting holes correspond, the first body is in still be equipped with the locating piece around the third connecting hole, the locating piece be suitable for set up in the constant head tank.
9. A center-of-gravity balanced toothbrush head according to claim 1 wherein, The penetrating direction of the connecting piece is perpendicular to the axial direction of the second body.
10. An electric toothbrush comprising a balanced center of gravity toothbrush head according to any one of claims 1 to 9.

Description

Toothbrush head with balanced gravity center and electric toothbrush Technical Field The utility model relates to the field of electric toothbrushes, in particular to a toothbrush head with balanced gravity center and an electric toothbrush. Background The brush head of the current electric toothbrush needs to vibrate at high frequency in all directions so that the brush hair can clean teeth at high frequency, but the brush head is strong in vibration sense caused by the fact that the brush head is light in weight and poor in use experience. Therefore, the weight block is needed to be arranged in the toothbrush head of the existing electric toothbrush for balancing the gravity center of the toothbrush head. However, the addition of the balancing weight can make the structure of the electric toothbrush more complex, and increase the production cost and the assembly difficulty. And the balancing weight has certain weight, so that the whole weight of the electric toothbrush is increased, and a certain burden can be brought to a user during use. If dirt or bacteria build up on the weight or its surrounding components can also affect the hygiene of the toothbrush, cleaning and maintenance of the electric toothbrush can be made more difficult. Disclosure of utility model The utility model aims to provide a toothbrush head and an electric toothbrush with balanced gravity center, wherein a connecting piece is fixedly connected with a toothbrush head bracket and a transmission shaft, so that the transmission shaft is fixedly connected with a first body and a second body, the connecting piece and a bristle seat are oppositely arranged on two sides of the transmission shaft, and the connecting piece is oppositely arranged at the bottom of the bristle seat, so that the gravity center of a toothbrush head assembly is positioned on the central axis of the transmission assembly, the gravity center of the toothbrush head is better balanced, a balancing weight is not required to be arranged, and the electric toothbrush has a simple structure. In order to achieve the above purpose, the utility model provides a toothbrush head with balanced gravity center, which comprises a first body, a second body and a connecting piece, wherein a brush head assembly is arranged in the first body, the brush head assembly comprises a brush head bracket and a brush hair seat, a fixing groove is arranged at the bottom of the brush head bracket, a connecting groove is arranged at one side of the brush head bracket, the brush hair seat is fixedly arranged in the connecting groove, and brush hair is arranged on the brush hair seat; The second body is suitable for being detachably arranged in the toothbrush main body, a transmission assembly is arranged in the second body, and the transmission assembly comprises a transmission shaft suitable for being inserted into the fixed groove; The connecting piece is suitable for being connected with the other side of the brush head support and the transmission shaft in a penetrating way, the connecting piece and the brush hair seat are oppositely positioned on two sides of the transmission shaft and are oppositely positioned at the bottom of the brush hair seat, so that the gravity center of the brush head assembly is positioned on the central axis of the transmission assembly. In some embodiments, the connecting groove is communicated with the fixing groove, one side, close to the bristle seat, of the transmission shaft is relatively flush with the bottom of the connecting groove, and the tail end of the connecting piece is relatively positioned at the bottom of the connecting groove. In some embodiments, the brush head support comprises a first support body and a second support body, the second support body is arranged at the bottom of the first support body, one side of the first support body is inwards sunken to form the connecting groove, the top wall of the second support body is the only groove wall of the connecting groove, and the fixing groove axially penetrates through the second support body and at least part of the fixing groove is positioned at the groove bottom of the connecting groove. In some embodiments, the fixing groove comprises a first groove body and a second groove body, the second groove body is arranged in the second frame body, and the first groove body is arranged at the bottom of the first frame body and is relatively positioned at the bottom of the connecting groove. In some embodiments, a first weight groove is further formed on one side, close to the first frame body, of the bristle base, and the groove wall of the first weight groove is fixedly connected with the first frame body, so that a first weight cavity is formed between the first frame body and the bristle base. In some embodiments, the first frame body is further provided with a plurality of second weight slots, and the second weight slots are symmetrically arranged at the bottom of the connecting slot, so that a se