CN204581553U

CN204581553U - A kind of dental medical tool head

Info

Publication number: CN204581553U
Application number: CN201520017930.8U
Authority: CN
Inventors: 周杰明
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-01-12
Filing date: 2015-01-12
Publication date: 2015-08-26
Anticipated expiration: 2025-01-12

Abstract

This utility model relates to a kind of dental medical tool head, for dental medical tool, it discloses and be provided with the main groove being no less than, front secondary groove, rear secondary groove on the face of cylinder of wind wheel; Described main groove is positioned at the interlude on the wind wheel face of cylinder, secondary groove and rear secondary groove before the wind wheel face of cylinder above and below main groove is all provided with respectively; The inner side of front secondary groove is breach; The outside of rear secondary groove is breach; Wind guide tank is respectively arranged with at the top of wind wheel and bottom; The inner surface of casing is provided with arc air drain.The utility model has the advantages that rational in infrastructure, it by reasonably arranging the air pressure stress surface be made up of main groove, front secondary groove, rear secondary groove on the face of cylinder of wind wheel, make it to coordinate and air flow power is scientifically converted to rotary power output, reduce power conversion loss thus enhance wind wheel torsion and export, and low cost of manufacture, volume is little.

Description

A kind of dental medical tool head

Technical field

This utility model relates to a kind of dental medical tool head, specifically a kind of by arranging the stress surface enhancing be made up of main groove, front secondary groove, rear secondary groove and the dental medical tool head stablizing the output of wind wheel torsion.

Background technology

On existing market, the main axis of dentistry hand machine head generally adopts air pressure to drive, and the size of dental handpiece head volume and the size of wind wheel outputting torsion are all the problems that dentist is concerned about, in order to dentist is more flexible in use, volume is the smaller the better, can affect again wind wheel power conversion while but volume is little and export decline, so it is the problem that dental handpiece head needs to solve that the power conversion how strengthening wind wheel when small size exports.

Utility model content

The purpose of this utility model is to provide a kind of dental medical tool head, it by reasonably arranging the air pressure stress surface be made up of main groove, front secondary groove, rear secondary groove on the face of cylinder of wind wheel, make it to coordinate and air flow power is scientifically converted to rotary power output, reduce power conversion loss thus enhance wind wheel torsion and export, and low cost of manufacture, volume is little.

The technical solution of the type that this practicality is new is at main shaft, casing, machine neck, bearing, on the basis of wind wheel, is characterized on the face of cylinder of wind wheel, be provided with the main groove being no less than, front secondary groove, rear secondary groove; Described main groove is positioned at the interlude on the wind wheel face of cylinder, secondary groove and rear secondary groove before the wind wheel face of cylinder above and below main groove is all provided with respectively; The inner side of front secondary groove is breach, and front secondary groove is connected with main groove by inner side breach; The outside of rear secondary groove is breach, and rear secondary groove is communicated with the external world of wind wheel by outside breach; Wind guide tank is respectively arranged with at the top of wind wheel and bottom; On the inner surface of casing, rotation array has the arc air drain being no less than.

The groove depth of above-described main groove, front secondary groove, rear secondary groove is all front dark rear shallow, the front secondary groove of depth ratio of main groove and the degree of depth of rear secondary groove large, front secondary groove, the rear secondary groove of each main groove and main groove upper and lower form one group of air pressure stress surface, and on the face of cylinder of wind wheel, rotation array has and is no less than one group of air pressure stress surface.

Operation principle of the present utility model is main groove, front secondary groove, rear secondary groove front dark after shallow design in wind wheel work, jet-impingement power fixed point can be blocked in most suitable stress surface group thus strengthen the stressed effect of wind wheel, by the inner side breach of front secondary groove, air-flow is refluxed in diffusion process again and produce the stressed effect that the addition of secondary impulse force strengthens wind wheel further, after when current rate interference, the outside breach of secondary groove directs into air-flow the wind guide tank of wind wheel, make in wind guide tank, to form eddy current tailing edge main shaft to discharge, thus the center of rotation stablizing wind wheel reduces friction from the rotating speed effect entering an enhancing wind wheel again, thus make the little situation of wind wheel volume also can provide short enough Power output, design according to this wind wheel, the head diameter size design of dental medical tool can reach Power output requirement to 9mm, it is the size design that dental medical tool is minimum in the market.

The utility model has the advantages that rational in infrastructure, it by reasonably arranging the air pressure stress surface be made up of main groove, front secondary groove, rear secondary groove on the face of cylinder of wind wheel, make it to coordinate and air flow power is scientifically converted to rotary power output, reduce power conversion loss thus enhance wind wheel torsion and export, and low cost of manufacture, volume is little.

Accompanying drawing explanation

Fig. 1 is sectional structure schematic diagram of the present utility model;

Fig. 2 is wind wheel perspective view of the present utility model;

Fig. 3 is casing perspective view of the present utility model.

Detailed description of the invention

According to Fig. 1, Fig. 2, Fig. 3, this utility model is at main shaft 1, casing 2, machine neck 5, bearing 3, on the basis of wind wheel 4, to be characterized in being provided with 12 bottoms on the face of cylinder of wind wheel 4 be main groove 7,24 bottoms of cambered surface is that before plane, secondary groove 8,24 bottoms are the rear secondary groove 9 of plane; Described main groove 7 is positioned at the interlude on wind wheel 4 face of cylinder, secondary groove 8 and rear secondary groove 9 before wind wheel 4 face of cylinder above and below main groove 7 is all provided with respectively; The groove depth of described main groove 7, front secondary groove 8, rear secondary groove 9 is all front dark rear shallow, the front secondary groove 8 of depth ratio of main groove 7 and the degree of depth length that is large and main groove 7 of rear secondary groove 9 are that the length of front secondary groove 8 and rear secondary groove 9 is added, the front secondary groove 8 of each main groove 7 groove main with it upper and lower, rear secondary groove 9 form one group of air pressure stress surface, on the face of cylinder of wind wheel, rotation array has 12 groups of air pressure stress surfaces, the inner side of front secondary groove 8 is breach, and front secondary groove 8 is connected with main groove 7 by inner side breach; The outside of rear secondary groove 9 is breach, and rear secondary groove 9 is communicated with the external world outside wind wheel 4 by outside breach; Wind guide tank 10 is respectively arranged with at the top of wind wheel 4 and bottom; On the inner surface of casing 2, rotation array has the arc air drain 6 of 24.

Claims

1. a dental medical tool head, it comprises main shaft, casing, machine neck, bearing, wind wheel, it is characterized in that on the face of cylinder of wind wheel, be provided with the main groove being no less than, front secondary groove, rear secondary groove; Described main groove is positioned at the interlude on the wind wheel face of cylinder, secondary groove and rear secondary groove before the wind wheel face of cylinder above and below main groove is all provided with respectively; The inner side of front secondary groove is breach, and front secondary groove is connected with main groove by inner side breach; The outside of rear secondary groove is breach, and rear secondary groove is communicated with the external world of wind wheel by outside breach; Wind guide tank is respectively arranged with at the top of wind wheel and bottom; On the inner surface of casing, rotation array has the arc air drain being no less than.

2. a kind of dental medical tool head according to claim 1, it is characterized in that the groove depth of main groove, front secondary groove, rear secondary groove is all front dark rear shallow, the front secondary groove of depth ratio of main groove and the degree of depth of rear secondary groove large, front secondary groove, the rear secondary groove of each main groove and main groove upper and lower form one group of air pressure stress surface, and on the face of cylinder of wind wheel, rotation array has and is no less than one group of air pressure stress surface.