CN207462162U - A kind of shrinkage type structure in dental handpiece heads air inlet section - Google Patents
A kind of shrinkage type structure in dental handpiece heads air inlet section Download PDFInfo
- Publication number
- CN207462162U CN207462162U CN201720312147.3U CN201720312147U CN207462162U CN 207462162 U CN207462162 U CN 207462162U CN 201720312147 U CN201720312147 U CN 201720312147U CN 207462162 U CN207462162 U CN 207462162U
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- air inlet
- intake duct
- air intake
- inlet section
- type structure
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Abstract
The utility model is related to a kind of shrinkage type structures in dental handpiece heads air inlet section, air inlet pipe including handset machine head and to handset machine head conveying pneumatic energy, air intake duct is equipped in the air inlet pipe, the air inlet section of the air intake duct is gradually tapered up along airintake direction from big become smaller.The beneficial effects of the utility model are：Gas in air inlet pipe is smoothly transformed to small air inlet section by big air inlet section, and the speed of gas flowing is improved while reducing vapour lock, and the torsion of bigger is provided to dental handpiece.
Description
Technical field
The utility model is related to type medical instrument for dental use fields, and in particular to a kind of contraction in dental handpiece heads air inlet section
Type structure.
Background technology
Dental handpiece heads are the housings of dental handpiece, it needs to ensure the smooth of air inlet, pneumatic so as to be conveyed to mobile phone
Energy.For existing dental handpiece heads mostly without Aerodynamic optimization design, the energy utilization efficiency of gas is smaller, leads to tooth
Section's mobile phone is unable to reach higher output power, it is impossible to meet the requirement of everyday dental treatment.
Utility model content
In conclusion for overcome the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide one
The shrinkage type structure in kind dental handpiece heads air inlet section is imitated with reference to gas dynamics to improve utilizing for gas energy
Rate.
The technical solution that the utility model solves above-mentioned technical problem is as follows：A kind of receipts in dental handpiece heads air inlet section
Miniature structure, the air inlet pipe including handset machine head and to handset machine head conveying pneumatic energy, the air inlet pipe is interior to be equipped with air intake duct,
The air inlet section of the air intake duct is gradually tapered up along airintake direction from big become smaller.
The beneficial effects of the utility model are：Gas in air inlet pipe by big air inlet section smoothly transform to it is small into
The speed of gas flowing is improved in gas section while reducing vapour lock, the torsion of bigger is provided to dental handpiece.
Based on the above technical solution, the utility model can also do following improvement：
Further, the air intake duct along before and after airintake direction successively include the first air intake duct and the second air intake duct, it is described
First air intake duct is the gas flow of truncated cone-shaped, and two air intake duct is cylindrical gas flow.
Further, first air intake duct and the inner wall of the second air intake duct junction are circle arc curve, the circle
The convex surface of arc curve is located at close to the side of air intake duct.
Advantageous effect using above-mentioned further scheme is：Realize the gas in air inlet pipe by big air inlet section smoothly
Transform to small air inlet section.
Further, the air inlet pipe is bending tube.
Advantageous effect using above-mentioned further scheme is：The shape of air inlet pipe matches with air intake duct.
Description of the drawings
Fig. 1 is the connection diagram of handset machine head and air inlet pipe；
Fig. 2 is the structure chart of air inlet pipe；
Fig. 3 is the sectional view of air inlet pipe.
In attached drawing, parts list represented by the reference numerals are as follows：
1st, handset machine head, 2, air inlet pipe, the 3, first air intake duct, the 4, second air intake duct.
Specific embodiment
The principle and feature of the utility model are described below in conjunction with attached drawing, example is served only for explaining this practicality
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1, a kind of shrinkage type structure in dental handpiece heads air inlet section, including handset machine head 1 and to mobile phone
Head 1 conveys the air inlet pipe 2 of pneumatic energy, and the air inlet pipe 2 is bending tube.
As shown in Figures 2 and 3, air intake duct is equipped in the air inlet pipe 2, the air inlet section of the air intake duct is along airintake direction
It is gradually tapered up from big become smaller, it is specific as follows：The air intake duct along before and after airintake direction successively include the first air intake duct 3 and second
Air intake duct 4, first air intake duct 3 are the gas flow of truncated cone-shaped, and two air intake duct 4 is cylindrical gas flow.Institute
The inner wall for stating the first air intake duct 3 and 4 junction of the second air intake duct is smooth curve, preferably：First air intake duct, 3 He
The inner wall of second air intake duct, 4 junction is circle arc curve, and the convex surface of the circle arc curve is located at one close to air intake duct
Side.Gas in air inlet pipe 2 first passes through the first air intake duct 3, and using the second air intake duct 4, in this course, gas is by big
Air inlet section smoothly transforms to small air inlet section, the speed of gas flowing is improved while reducing vapour lock, to dental handpiece
There is provided the torsion of bigger so that dental handpiece reaches higher output power.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (5)
1. a kind of shrinkage type structure in dental handpiece heads air inlet section is conveyed including handset machine head (1) and to handset machine head (1)
The air inlet pipe (2) of pneumatic energy, which is characterized in that air intake duct, the air inlet section of the air intake duct are equipped in the air inlet pipe (2)
It is gradually tapered up along airintake direction from big become smaller.
2. the shrinkage type structure in air inlet section according to claim 1, which is characterized in that the air intake duct is along air inlet side
To successively including the first air intake duct (3) and the second air intake duct (4), gas flow of first air intake duct (3) for truncated cone-shaped, institute
Two air intake ducts (4) are stated as cylindrical gas flow.
3. the shrinkage type structure in air inlet section according to claim 2, which is characterized in that first air intake duct (3) and
The inner wall of second air intake duct (4) junction is smooth curve.
4. the shrinkage type structure in air inlet section according to claim 2, which is characterized in that first air intake duct (3) and
The inner wall of second air intake duct (4) junction is circle arc curve, and the convex surface of the circle arc curve is located at close to air intake duct
Side.
5. the shrinkage type structure in air inlet section according to any one of claims 1 to 4, which is characterized in that the air inlet pipe
(2) it is bending tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720312147.3U CN207462162U (en) | 2017-03-28 | 2017-03-28 | A kind of shrinkage type structure in dental handpiece heads air inlet section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720312147.3U CN207462162U (en) | 2017-03-28 | 2017-03-28 | A kind of shrinkage type structure in dental handpiece heads air inlet section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207462162U true CN207462162U (en) | 2018-06-08 |
Family
ID=62255162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720312147.3U Active CN207462162U (en) | 2017-03-28 | 2017-03-28 | A kind of shrinkage type structure in dental handpiece heads air inlet section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207462162U (en) |
-
2017
- 2017-03-28 CN CN201720312147.3U patent/CN207462162U/en active Active
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