CN108635074B

CN108635074B - Electric toothbrush

Info

Publication number: CN108635074B
Application number: CN201810804851.XA
Authority: CN
Inventors: 张山恩; 刘闫
Original assignee: Ningbo Seago Electric Co ltd
Current assignee: Ningbo Seago Electric Co ltd
Priority date: 2018-07-20
Filing date: 2018-07-20
Publication date: 2023-09-08
Anticipated expiration: 2038-07-20
Also published as: CN108635074A

Abstract

The invention discloses an electric toothbrush which comprises a handle shell, a support, a swing rod and a waterproof rubber ring, wherein the support is arranged in the handle shell, the swing rod extends out of the handle shell, a retainer ring is arranged at the extending end of the handle shell, a limiting ring is arranged on the swing rod, the waterproof rubber ring clamped between the retainer ring and the limiting ring is sleeved on the swing rod, a support accessory is arranged between the support and the swing rod, one side of the support accessory is connected with the swing rod, and a spring for pushing the swing rod to the retainer ring to clamp the waterproof rubber ring is arranged between the other end of the support accessory and the support. This electric toothbrush pushes away the swing rod through the spring to the stop collar clamp waterproof rubber ring, prevents because machining error and leads to waterproof poor and waterproof rubber ring can produce can still guarantee the leakproofness after the unrecoverable deformation after long-time oppression to guarantee the leakproofness of junction of handle and swing rod, prevent that water from leaking into the handle cavity from the junction of handle and swing rod.

Description

Electric toothbrush

Technical Field

The invention belongs to the technical field of electric toothbrushes, and particularly relates to an electric toothbrush.

Background

Electric toothbrushes are new products in recent years, and a revolution in the field of oral health care has been raised abroad. Although the electric toothbrush is not popular in our country, it is predicted to be an important member of the public health care products. Investigation shows that the electric toothbrush is more scientific and effective compared with the common toothbrush; the toothbrush can more thoroughly remove dental plaque, reduce gingivitis and gingival bleeding, is also a daily product which is popular in various countries in Europe and America at present, and the electric toothbrush can quickly rotate to enable the toothbrush head to generate high-frequency vibration, so that toothpaste is instantaneously decomposed into fine foam, and tooth gaps are deeply cleaned; at the same time, the vibration of the brush hair can promote the blood circulation of the oral cavity and has unexpected massage effect on gum tissues. In order to reduce the vibration of the hand-held part, the existing electric toothbrush is provided with a bracket arranged in a handle, a swing rod is connected to the bracket to extend out of the hand-held part, a vibration motor is arranged in the swing rod, and a toothbrush head cover is arranged on the swing rod. In order to prevent water leakage into the handle, a waterproof rubber ring is generally sleeved on the swing rod and abuts against a step at the end part of the hand-held part. In the actual assembly and use process, the pressure of the waterproof rubber ring against the handle is too small due to processing errors, so that water leakage occurs; even if the assembly error is small, the waterproof rubber ring can generate unrecoverable deformation after long-time pressing after the electric toothbrush is used for a period of time, and then water leakage is caused.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the electric toothbrush which can effectively improve the tightness of the joint of the handle and the swinging rod and prevent water from leaking into a cavity of the handle from the joint of the handle and the swinging rod.

In order to solve the technical problems, the invention is solved by the following technical scheme: the utility model provides an electric toothbrush, includes handle casing, support, pendulum rod and waterproof rubber ring, the support set up in the handle casing, the pendulum rod stretches out in the handle casing, the handle casing is located the pendulum rod stretches out the end and is provided with the retaining ring, be equipped with the spacing ring on the pendulum rod, the cover on the pendulum rod be equipped with press from both sides tightly in the retaining ring with waterproof rubber ring between the spacing ring, the support with be provided with the support accessory between the pendulum rod, support accessory one end with the pendulum rod is connected, the support accessory other end with be provided with between the support will the pendulum rod is pushed to the retaining ring is in order to press from both sides the spring of waterproof rubber ring. This electric toothbrush pushes away the swing rod through the spring to the stop collar clamp waterproof rubber ring, prevents because machining error and leads to waterproof poor and waterproof rubber ring can produce can still guarantee the leakproofness after the unrecoverable deformation after long-time oppression to guarantee the leakproofness of junction of handle and swing rod, prevent that water from leaking into the handle cavity from the junction of handle and swing rod.

In the above technical scheme, preferably, two connecting pieces are oppositely arranged on the swing rod towards one end of the bracket accessory, buckling holes are formed in the connecting pieces, grooves are formed in the positions, abutted to the bracket accessory, of the connecting pieces, two groups of limiting columns and buckling blocks are oppositely arranged on the bracket accessory, the limiting columns are inserted into the grooves, and the buckling blocks are buckled into the buckling holes. By adopting the structure, the swing rod is buckled and connected with the bracket accessory, and the swing rod and the bracket can be firstly installed and then installed in the handle shell during installation, so that the installation is more convenient.

In the above technical scheme, preferably, the buckling end of the buckling block with the buckling hole is arc-shaped, a swinging gap is formed between the buckling block and the buckling hole, and the end part of the limiting column is arc-shaped, and a swinging gap is formed between the limiting column and the groove. When the vibrating motor on the swinging rod is started by adopting the structure, the swinging rod can still keep a certain amplitude of swinging after being positioned on the bracket accessory, so that the vibrating effect of the swinging rod is better, the vibration is reduced and transmitted to the handle shell, the vibration at the handle shell is reduced, and the hand numbness is prevented.

In the above technical scheme, preferably, the bracket fitting is provided with a guide rod, the bracket is provided with a guide hole, the guide rod slides in the guide hole, and the spring is sleeved on the guide rod. By adopting the structure, the spring force direction is more stable, one end direction of the bracket accessory is also more stable, and the whole structure and the assembly relationship are more stable and controllable.

In the above technical solution, preferably, the end of the guide rod is provided with a limiting protrusion, and a groove for inserting the guide rod with the protrusion is provided on one side of the guide hole. The structure is adopted to load the limit bulge into the alignment groove, and then the limit bulge is clamped at the end part of the guide hole by rotating the bracket fitting, so that the bracket fitting and the bracket can be integrally installed before being loaded into the handle shell, and the assembly is more convenient.

Compared with the prior art, the invention has the following beneficial effects: this electric toothbrush pushes away the swing rod through the spring to the stop collar clamp waterproof rubber ring, prevents because machining error and leads to waterproof poor and waterproof rubber ring can produce can still guarantee the leakproofness after the unrecoverable deformation after long-time oppression to guarantee the leakproofness of junction of handle and swing rod, prevent that water from leaking into the handle cavity from the junction of handle and swing rod.

Drawings

Fig. 1 is a cross-sectional view of an embodiment of the present invention.

Fig. 2 is an exploded view of an embodiment of the present invention.

Fig. 3 is a schematic view illustrating mounting of a bracket fitting and a bracket according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of the swing link and the bracket assembly in the embodiment of the invention.

Detailed Description

The invention is described in further detail below with reference to the attached drawings and detailed description: referring to fig. 1 to 4, an electric toothbrush comprises a handle shell 1, a support 2, a swing rod 3 and a waterproof rubber ring 4, wherein the support 2 is arranged in the handle shell 1, the swing rod 3 extends out of the handle shell 1, the handle shell 1 is positioned at the extending end of the swing rod 3 and is provided with a retainer ring 5, the swing rod 3 is provided with a limiting ring 6, the swing rod 3 is sleeved with the waterproof rubber ring 7 clamped between the retainer ring 5 and the limiting ring, a support fitting 8 is arranged between the support 2 and the swing rod 3, one end of the support fitting 8 is connected with the swing rod 3, and a spring 9 which pushes the swing rod 3 to the retainer ring 5 so as to clamp the waterproof rubber ring 7 is arranged between the support fitting 8 and the support 2. This electric toothbrush pushes away the swing rod through the spring to the stop collar clamp waterproof rubber ring, prevents because machining error and leads to waterproof poor and waterproof rubber ring can produce can still guarantee the leakproofness after the unrecoverable deformation after long-time oppression to guarantee the leakproofness of junction of handle and swing rod, prevent that water from leaking into the handle cavity from the junction of handle and swing rod.

Two connecting pieces 31 are oppositely arranged at one end of the swing rod 3, which faces the bracket fitting 8, the connecting pieces 31 are provided with buckling holes 32, grooves 33 are formed in the abutting positions of the connecting pieces 31 and the bracket fitting 8, two groups of limiting columns 81 and buckling blocks 82 are oppositely arranged on the bracket fitting 8, the limiting columns 81 are inserted into the grooves 33, and the buckling blocks 82 are buckled into the buckling holes 32. By adopting the structure, the swing rod is buckled and connected with the bracket accessory, and the swing rod and the bracket can be firstly installed and then installed in the handle shell during installation, so that the installation is more convenient.

The fastening ends of the fastening blocks 82 and the fastening holes 32 are arc-shaped, a swinging gap is formed between the fastening blocks 82 and the fastening holes 32, the end parts of the limiting columns 81 are arc-shaped, and a swinging gap is formed between the limiting columns 81 and the grooves 33. When the vibrating motor on the swinging rod is started by adopting the structure, the swinging rod can still keep a certain amplitude of swinging after being positioned on the bracket accessory, so that the vibrating effect of the swinging rod is better, the vibration is reduced and transmitted to the handle shell, the vibration at the handle shell is reduced, and the hand numbness is prevented.

The support accessory 8 is provided with a guide rod 83, the support 2 is provided with a guide hole 21, the guide rod 83 slides in the guide hole 21, and the spring 9 is sleeved on the guide rod 83. By adopting the structure, the spring force direction is more stable, one end direction of the bracket accessory is also more stable, and the whole structure and the assembly relationship are more stable and controllable.

The guide bar 83 is provided at an end thereof with a limit projection 84, and the guide hole 21 is provided at one side thereof with a groove 22 for inserting the guide bar 83 having the projection 84. The structure is adopted to load the limit bulge into the alignment groove, and then the limit bulge is clamped at the end part of the guide hole by rotating the bracket fitting, so that the bracket fitting and the bracket can be integrally installed before being loaded into the handle shell, and the assembly is more convenient.

Claims

1. The utility model provides an electric toothbrush, includes handle casing (1), support (2), pendulum rod (3) and waterproof rubber ring (4), support (2) set up in handle casing (1), pendulum rod (3) are stretched out in handle casing (1), handle casing (1) are located pendulum rod (3) stretch out the end and are provided with retaining ring (5), be equipped with spacing ring (6) on pendulum rod (3), the cover is equipped with clamp in on pendulum rod (3) retaining ring (5) with waterproof rubber ring (7) between the spacing ring, its characterized in that: a bracket fitting (8) is arranged between the bracket (2) and the swinging rod (3), one end of the bracket fitting (8) is connected with the swinging rod (3), a spring (9) which pushes the swinging rod (3) to the retainer ring (5) to clamp the waterproof rubber ring (7) is arranged between the other end of the bracket fitting (8) and the bracket (2), two connecting sheets (31) are oppositely arranged on one end of the swinging rod (3) facing the bracket fitting (8), a buckling hole (32) is arranged on the connecting sheets (31), a groove (33) is arranged at the abutting position of the connecting sheets (31) and the bracket fitting (8), two groups of limit posts (81) and buckling blocks (82) are oppositely arranged on the bracket fitting (8), the limit posts (81) are inserted into the groove (33), the buckling blocks (82) are buckled into the buckling holes (32), the buckling blocks (82) are buckled with the buckling ends of the buckling holes (32) oppositely arranged at the ends, the arc-shaped guide posts (81) are arranged between the arc-shaped guide posts (81) and the arc-shaped end parts (8), the novel brush is characterized in that a guide hole (21) is formed in the support (2), the guide rod (83) slides in the guide hole (21), the spring (9) is sleeved on the guide rod (83), and the swinging rod (3) is connected with a brush head.

2. An electric toothbrush according to claim 1, wherein: the end part of the guide rod (83) is provided with a limit protrusion (84), and one side of the guide hole (21) is provided with a groove (22) for inserting the guide rod (83) with the protrusion (84).