Durable balance arm

The utility model relates to the field of balance arm design, and particularly discloses a durable balance arm which comprises an arm body, a tension spring, a first connector and a rotating shaft, the first connector is rotationally connected with the arm body, and one end of the tension spring in...

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Bibliographic Details
Main Authors WANG ZEJIANG, LU CHENGHUI, YE RUNSHENG
Format Patent
LanguageChinese
English
Published 26.09.2023
Subjects
APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
DENTISTRY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
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Summary:The utility model relates to the field of balance arm design, and particularly discloses a durable balance arm which comprises an arm body, a tension spring, a first connector and a rotating shaft, the first connector is rotationally connected with the arm body, and one end of the tension spring in the length direction is fixedly connected with the arm body; the tension spring is used for applying tension to the first connector to enable the first connector to rotate relative to the arm body; the rotating shaft is fixedly connected to the other end of the tension spring and sleeved with a first plastic bearing, the first plastic bearing is sleeved with a rotating shaft sleeve, and the rotating shaft sleeve can rotate around the axis of the rotating shaft; and the rotating shaft sleeve is embedded into the first joint and is pressed on the first joint under the tension action of the tension spring. According to the durable balance arm, sliding friction between the stop block and the first connector in the past
Bibliography:Application Number: CN202320354838U