Tooth polishing machine tooth guard angle with new polishing cup and repeatable forward and reverse

Abstract

The invention discloses a prophy angle provided with a novel polishing cup and capable of clockwise and anticlockwise rotating repeatedly of a tooth polishing machine. The prophy angle comprises the polishing cup and a driving assembly, wherein the polishing cup comprises a cup body and a base; a plurality of first blades are spirally arranged in the cup body; a plurality of rhombic bulges are uniformly arranged on the outer wall of the cup body; a transmission groove is formed in the rear part of the base; a transmission curved surface is formed in the transmission groove; an assembling hole is formed in the center of the transmission curved surface; a plurality of convex parts and concave parts are arranged on the transmission curved surface, and rise and fall regularly; the driving assembly comprises a rotary main shaft; the upper end of the driving assembly is arranged in the assembling hole in a penetrating manner and is provided with a driving head part; a driving surface is formed on the driving head part, and the driving head part is meshed with the transmission curved surface, so as to realize transmission connection of the rotary main shaft and the polishing cup; when the driving surface of the driving head part is in contact with the convex parts and the concave parts of the transmission curved surface in sequence, the polishing cup can clockwise and anticlockwise rotate in sequence. The prophy angle disclosed by the invention is more stable in polishing paste control, better in polishing effect and low in heat value, can decrease the probability of damage to a dental tissue, and is low in production cost.

Description

technical field [0001] The invention relates to the field of tooth care and polishing, in particular to a tooth guard curved angle structure of a tooth polishing machine with an improved structure polishing cup and the polishing cup can be turned forward and reversed repeatedly. Background technique [0002] Tooth polishing machine is mainly used in the prevention and treatment of dental diseases and the cleaning and polishing of the tooth surface (with special polishing paste). Its main treatment head - Prophy Angle and hand-held power part - —The high-speed dental car head (handset) consists of two parts. [0003] The polishing cup at the curved corner of the mouth guard touches and acts on the surface of the teeth to clean and polish the teeth. The polishing cup is composed of a polishing cup (rubber cup) and a fixed shaft, wherein the polishing cup (rubber cup) is injection-molded and fixed on the front end of the fixed shaft, and the base of the fixed shaft is position...

AI Technical Summary

Problems solved by technology

[0008] 2. Because the tooth polishing machine is usually driven at a high speed, the studs or pins in the traditional reciprocating rotating structure are at risk of breaking during use

In addition, in order to form studs or sliders and channels that fit well, the manufacture of the drive shaft and driven shaft becomes relatively more complicated and difficult;

[0009] 3. In the traditional reciprocating rotation structure, when it is necessary to stop the reciprocating rotation, first stop the rotation of the drive shaft, and the drive shaft forces the driven shaft to lock relative to the drive shaft and the housing where the driven shaft is located

For the blades of the existing structure, the connection line between the root and the cup wall is on the same plane as the axis of the polishing cup, so the migration of the polishing paste cannot be inhibited

Causes the polishing paste to be released from the cup prematurely, wasting the paste;

[0015] 3. At the same time, too much polishing paste released pollutes the operating environment, increases the discomfort of the patient, and causes the patient to ingest too much polishing paste; it also seriously affects the efficiency of the operation process, and the dentist has to repeatedly fill the polishing paste to perform treatment

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