Piston driving assembly for oral care device and oral care device

An oral care and piston-driven technology, which is applied in the direction of cleaning the dental cavity, can solve problems such as unevenness, noise and stress, and achieve the effects of convenient assembly, reduced friction and noise, and difficult assembly

Pending Publication Date: 2022-06-24
SHENZHEN REECOO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present application provides a piston drive assembly for an oral care device and an oral care device to solve the technical problems of noise and uneven force caused by the gear transmission therein

Method used

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  • Piston driving assembly for oral care device and oral care device
  • Piston driving assembly for oral care device and oral care device

Examples

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Effect test

application example 1

[0077] In application example 1, a piston driving assembly for an oral care device is provided, including a drive shaft 111, an eccentric member 120, a transmission member 130, and a piston 140, which is a part of a liquid pump. The drive shaft 111 is directly connected to the eccentric part 120 , the eccentric part 120 is provided with an eccentric part 121 offset from the rotation axis of the drive shaft 111 , the transmission part 130 is connected to the eccentric part 121 , and the piston 140 connected to the transmission member 130 . When the driving shaft 111 rotates, the eccentric member 120 and the transmission member 130 can be driven to rotate, thereby driving the piston 140 to reciprocate. Compared with gear transmission, it helps to reduce noise, reduce friction between teeth, and increase service life.

application example 2

[0079] In the second application example, a piston drive assembly for an oral care device is provided, which includes a drive shaft 111 , an eccentric member 120 , a transmission member 130 , a piston 140 and a piston cylinder 180 . The piston 140 and piston cylinder 180 are part of a liquid pump. Here, the piston cylinder 180 has an inner cavity arranged along the first direction, and the piston 140 is fitted in the piston cylinder 180 . The rotation axis of the drive shaft 111 is perpendicular to the first direction. This arrangement makes the overall layout of the piston drive assembly used for the oral care device more compact, can reduce the occupied space in the first direction, and is helpful to adapt to the usage requirements of different space scenarios.

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Abstract

According to the piston driving assembly for the oral care device and the oral care device, a gear transmission structure is not arranged in the piston driving assembly, friction and noise caused by the gear transmission structure are reduced, and the situation that due to different acting force during reciprocating motion, part of tooth sides in the gear transmission structure are abraded seriously is avoided; and the positioning of the piston is more accurate, so that the abrasion of the piston is reduced, and the service life of the piston driving assembly is longer. Meanwhile, the piston driving assembly directly transmits torque generated by the driving shaft to the transmission part through the eccentric part, the transmission part drives the piston to do reciprocating motion, and the transmission efficiency between the driving shaft and the piston is improved.

Description

technical field [0001] The present application relates to the technical field of oral care equipment, and in particular, to a piston driving assembly for an oral care device and an oral care device. Background technique [0002] The piston pump assembly is the core component of oral care devices such as dental irrigators. In the existing oral care devices, the piston pump assembly includes a piston cylinder and a piston fitted in the piston cylinder, and the piston is usually driven by a gear transmission structure. , the teeth of the driving motor mesh with the transmission teeth of the gear transmission structure to reduce the speed and increase the torque. At the same time, the eccentrically arranged motor teeth convert the rotary motion into the linear motion of the piston, so as to change the pressure in the piston cylinder and realize the driving of the fluid. [0003] During this process, when the teeth of the motor mesh with the transmission teeth, a large gear noise...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C17/02
CPCA61C17/02
Inventor 王忠维罗远达陈智龙冉剑波
Owner SHENZHEN REECOO ELECTRONICS CO LTD
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