CN-224206920-U - Plug structure for sectional toothbrush head and electric toothbrush

CN224206920UCN 224206920 UCN224206920 UCN 224206920UCN-224206920-U

Abstract

The application relates to the field of electric toothbrushes, and provides an inserting and pulling structure for a sectional toothbrush head and an electric toothbrush, wherein the inserting and pulling structure comprises a shaft sleeve and a connecting seat, the shaft sleeve is arranged at the end part of a second body, and two sides of the shaft sleeve are provided with a pair of elastic clamping blocks; the connecting seat is arranged at the top of the toothbrush main body, a fixed clamping block is arranged on the outer side wall of the connecting seat, at least part of projection of the elastic clamping block on the connecting seat is mutually overlapped with the fixed clamping block, and at least part of the pair of elastic clamping blocks is always abutted to the fixed clamping block, so that the second body is suitable for being inserted and pulled out at any angle and arranged on the connecting seat. The electric toothbrush comprises a plug-in structure. The elastic clamping blocks are at least partially overlapped with the fixed clamping blocks in the projection range of the connecting seat, so that a pair of elastic clamping blocks are always at least partially abutted against the fixed clamping blocks, and no matter what rotation angle the second body is positioned, the elastic clamping blocks can form a reliable connection relation with the fixed clamping blocks, thereby ensuring that the second body can be smoothly plugged onto the connecting seat of the toothbrush main body under any angle.

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

Claims (10)

1. A plug structure for sectional type toothbrush head, sectional type toothbrush head includes first body and second body, be equipped with the brush head subassembly on the first body, be equipped with in the second body and be suitable for the transmission and connect the transmission subassembly of brush head subassembly and drive shaft, its characterized in that includes: the shaft sleeve is arranged at the end part of the second body, and a pair of elastic clamping blocks are arranged on two sides of the shaft sleeve; The connecting seat, the connecting seat sets up in toothbrush main part top, the connecting seat lateral wall is equipped with a fixed fixture block, the elasticity fixture block be in the projection of connecting seat at least part with fixed fixture block overlap each other the axle sleeve with the buckle in-process of connecting seat, a pair of elasticity fixture block at least part butt all the time in fixed fixture block for the second body is suitable for arbitrary angle plug setting in toothbrush main part the connecting seat.
2. A plug-in structure for a segmented toothbrush head according to claim 1, characterized in that, The pair of elastic clamping blocks are symmetrically arranged on two sides of the shaft sleeve, the pair of elastic clamping blocks are arranged at a first included angle between one ends of the shaft sleeve, which are close to each other in the circumferential direction, the fixed clamping blocks are arranged at a second included angle between two ends of the connecting seat, which are far away from each other in the circumferential direction, and the first included angle is smaller than the second included angle, so that the circumference of the fixed clamping blocks is always larger than the maximum circumference of the interval of the pair of elastic clamping blocks.
3. A plug-in structure for a segmented toothbrush head according to claim 2, characterized in that, The first included angle is 110-130 degrees, and the second included angle is 150-170 degrees.
4. A plug-in structure for a segmented toothbrush head according to claim 2, characterized in that, The first included angle is 120 degrees, the second included angle is 160 degrees, and at least one quarter of the fixed clamping blocks are always in abutting connection with the elastic clamping blocks.
5. A plug-in structure for a segmented toothbrush head according to claim 2, characterized in that, The shaft sleeve is axially penetrated and provided with a mounting pore canal, the connecting seat is suitable for being inserted into the mounting pore canal, two sides of the mounting pore canal are symmetrically provided with elastic grooves, and the elastic clamping blocks are arranged in the elastic grooves.
6. A plug-in structure for a segmented toothbrush head according to any one of claims 1 to 5, characterized in that, The connecting seat is also provided with a first abutting block, the first abutting block is arranged below the fixed clamping block, and a mounting groove is formed between the first abutting block and the fixed clamping block; The bottom of the shaft sleeve is also provided with a second abutting block, and the inner side wall of the second abutting block is suitable for being mutually abutted with the first abutting block.
7. A plug-in structure for a segmented toothbrush head according to claim 6, characterized in that, The first butt piece lateral wall includes first guide wall, smooth wall and the second guide wall that top-down set up, first guide wall is followed the axis of connecting seat is towards keeping away from one side radian extension of connecting seat, smooth wall connects first guide wall terminal with second guide wall head end just smooth wall with the axis of connecting seat is parallel relatively, second guide wall is followed the axis of connecting seat is towards being close to one side radian extension of connecting seat.
8. A plug-in structure for a segmented toothbrush head according to claim 6, characterized in that, The second butt piece winds around axle sleeve circumference round, still be equipped with first recess on the second butt piece lateral wall, the second body inboard is equipped with first arch, the second body first arch is suitable for the butt to be fixed in the second butt piece in the first recess, make the axle sleeve can be along with the second body rotates.
9. A plug-in structure for a segmented toothbrush head according to claim 6, characterized in that, The top of the shaft sleeve is also provided with third abutting blocks, the third abutting blocks are symmetrically arranged on the other two sides of the mounting hole channel, the symmetry line of the third abutting blocks is perpendicular to the symmetry line of the elastic clamping block, and the third abutting blocks are suitable for being mutually abutted to the top of the connecting seat.
10. An electric toothbrush, characterized by comprising a plug structure for a sectional toothbrush head, a sectional toothbrush head and a toothbrush main body according to any one of claims 1-9, wherein the sectional toothbrush head comprises a first body and a second body which can rotate relatively, and the second body can be fixedly arranged on a connecting seat of the toothbrush main body at any angle through the plug structure.

Description

Plug structure for sectional toothbrush head and electric toothbrush Technical Field The utility model relates to the field of electric toothbrushes, in particular to a plug-in structure for a sectional toothbrush head and an electric toothbrush. Background The brush head of the existing electric toothbrush is of an integral structure generally, the vibration effect is obvious, but in the using process, a brush rod of the brush head can be contacted with lips or oral cavities of a user, and the high-frequency vibration of the brush rod easily enables the lips or the oral cavities to produce numbness, so that uncomfortable experience is brought to the user. Therefore, the toothbrush head can be designed into a sectional structure, wherein the brush head assembly in the first body is connected with the driving shaft of the toothbrush main body through the transmission assembly in the second body, so that the driving shaft directly drives the brush head assembly to vibrate through the transmission assembly, and the second body keeps not vibrating, thereby avoiding the problem of numbness of lips or oral cavity caused by vibration of the brush rod, and remarkably improving the use experience of a user. The general toothbrush head is connected with the toothbrush main body by adopting a foolproof design, and the shaft sleeve can be smoothly plugged into the connecting seat of the toothbrush main body only when the bristles of the toothbrush head face upwards. However, the second body of the segmented toothbrush head is separate from the first body, and the second body is easily rotated relative to the first body. This makes at every turn when plug sectional type toothbrush head, not only need ensure the brush hair of first body up, still need adjust the position of second body, makes its axle sleeve and the connecting seat of toothbrush main part align, leads to sectional type toothbrush head and the comparatively loaded down with trivial details of toothbrush main part's connection process, wastes time and energy. Disclosure of utility model The utility model aims to provide the plug-in structure for the sectional toothbrush head and the electric toothbrush, wherein the elastic clamping blocks are at least partially overlapped with the fixed clamping blocks in the projection range of the connecting seat, so that a pair of elastic clamping blocks are always at least partially abutted against the fixed clamping blocks, no matter what rotation angle the second body is positioned, the elastic clamping blocks can form a reliable connection relation with the fixed clamping blocks, the second body can be smoothly plugged into the connecting seat of the toothbrush main body under any angle, a user can easily complete the replacement of the toothbrush head without accurately aligning the angle of the second body, the installation and the disassembly processes of the toothbrush head are simplified, the flexibility and the convenience of use are improved, and the user experience is remarkably improved. In order to achieve the above-mentioned purpose, the present utility model provides a plug structure for a sectional toothbrush head, where the sectional toothbrush head includes a first body and a second body, the first body is provided with a brush head assembly, the second body is internally provided with a transmission assembly adapted to connect the brush head assembly and a driving shaft in a transmission manner, the plug structure includes a shaft sleeve and a connection seat, the shaft sleeve is disposed at an end of the second body, and two sides of the shaft sleeve are provided with a pair of elastic clamping blocks; The connecting seat is arranged at the top of the toothbrush main body, a fixed clamping block is arranged on the outer side wall of the connecting seat, the elastic clamping block is at least partially overlapped with the fixed clamping block in a projection mode of the connecting seat, and at least a part of the elastic clamping block is always abutted to the fixed clamping block in the buckling process of the shaft sleeve and the connecting seat, so that the second body is suitable for being inserted and pulled at any angle to be arranged on the connecting seat of the toothbrush main body. In some embodiments, the elastic clamping blocks are symmetrically arranged on two sides of the shaft sleeve, the included angle between one ends of the elastic clamping blocks, which are close to each other in the circumferential direction of the shaft sleeve, is a first included angle, the included angle between two ends of the connecting seat, which are far away from each other in the circumferential direction, of the fixed clamping blocks is a second included angle, and the first included angle is smaller than the second included angle, so that the circumference of the fixed clamping blocks is always larger than the maximum circumference of the interval between the elastic clamping blocks. In some embodiments