CN220237049U - High-efficiency high-speed turbine handpiece - Google Patents
High-efficiency high-speed turbine handpiece Download PDFInfo
- Publication number
- CN220237049U CN220237049U CN202322253258.XU CN202322253258U CN220237049U CN 220237049 U CN220237049 U CN 220237049U CN 202322253258 U CN202322253258 U CN 202322253258U CN 220237049 U CN220237049 U CN 220237049U
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- turbine
- machine head
- air
- handpiece
- air inlet
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- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Abstract
The utility model discloses a high-efficiency high-speed turbine handpiece, which comprises a handle and a handpiece, wherein the handpiece comprises a handpiece shell, a shaft core, a turbine and a rear cover, a turbine cavity is arranged in the handpiece shell, a handpiece air inlet and a handpiece air return opening are formed in the inner wall of the turbine cavity, a turbine is arranged on the shaft core and is arranged in the turbine cavity, and the rear cover is arranged at the rear end of the handpiece shell; an air inlet pipe and an air return pipe are arranged in the handle, the air inlet pipe is communicated with an air inlet of the machine head, and the air return pipe is communicated with an air return port of the machine head; wherein the rear cover is provided with an air outlet. The machine head rear cover of the mobile phone is provided with the air outlet, the air outlet is positioned right above the air inlet of the machine head, and when air enters the turbine cavity from the air inlet of the machine head to drive the turbine to rotate, the air flow can be effectively discharged out of the machine head, so that the windage suffered by the turbine during high-speed rotation is reduced, and the rotation efficiency of the turbine is improved.
Description
Technical Field
The utility model relates to the technical field of dental medical appliances, in particular to a high-efficiency high-speed turbine handpiece.
Background
The dental handpiece comprises aircraft nose and handle, sets up in the handle and drives the trachea and blow to the aircraft nose in to drive the turbine in the aircraft nose and rotate, nevertheless when blowing to the turbine and in time discharging to the air current of windward side, can form the interference to the air current field in the turbine room, the resistance that the turbine received can increase, thereby influences the rotation efficiency of turbine.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a high-efficiency high-speed turbine handpiece, and the handpiece of the handpiece can effectively discharge air flow out of the handpiece, so that the windage suffered by a turbine in high-speed rotation is reduced, and the rotation efficiency of the turbine is improved.
The technical scheme for realizing the aim of the utility model is as follows:
a high efficiency high speed turbine handpiece comprising a handle and a handpiece, wherein:
the machine head comprises a machine head shell, a shaft core, a turbine and a rear cover, wherein a turbine cavity is formed in the machine head shell, a machine head air inlet and a machine head air return opening are formed in the inner wall of the turbine cavity, the turbine is arranged on the shaft core and mounted in the turbine cavity, and the rear cover is arranged at the rear end of the machine head shell; an air inlet pipe and an air return pipe are arranged in the handle, the air inlet pipe is communicated with an air inlet of the machine head, and the air return pipe is communicated with an air return port of the machine head; the rear cover is provided with an air outlet which is communicated with the turbine cavity.
The air outlet is arranged on the rear cover right above the air inlet of the machine head and is communicated with the turbine cavity.
The air outlet is arc-shaped, and the central angle corresponding to the arc is not more than 90 DEG
In the turbine, a wind-guiding surface is arranged on the windward side of the fan blade to pull the airflow towards the back cover direction, so that the airflow is discharged from the air outlet.
The turbine is arranged on the shaft core through a bearing.
According to the high-efficiency high-speed turbine handpiece provided by the utility model, the air outlet is arranged on the handpiece rear cover of the handpiece, and is positioned right above the air inlet of the handpiece, so that when air enters the turbine cavity from the air inlet of the handpiece to drive the turbine to rotate, the air flow can be effectively discharged out of the handpiece, the windage suffered by the turbine during high-speed rotation is reduced, and the rotation efficiency of the turbine is improved.
Drawings
FIG. 1 is a schematic illustration of a high-efficiency, high-speed turbine handpiece;
FIG. 2 is a cross-sectional view taken along the direction A-A in FIG. 1;
FIG. 3 is a cross-sectional view taken along the direction B-B in FIG. 2;
FIG. 4 is a cross-sectional view taken along the direction C-C in FIG. 3;
FIG. 5 is a cross-sectional view taken along the direction D-D in FIG. 4;
in the figure: 1. the machine head comprises a machine head 2, a handle 3, a rear cover 4, a machine head shell 5, a bearing 6, a shaft core 7, a turbine 8, an exhaust pipe 9, a machine head exhaust port 10, a machine head air inlet 11, a driving air pipe 12 and an air outlet 13 on the rear cover.
Description of the embodiments
The present utility model will be further described with reference to the drawings and examples, which are not intended to limit the scope of the utility model.
Examples
As shown in fig. 1, 2, 3 and 4:
a high efficiency high speed turbine handpiece comprising a handpiece 1 and a handle 2, wherein:
the machine head 1 comprises a machine head shell 4, a shaft core 6, a turbine 7 and a rear cover 3, wherein a turbine cavity is formed in the machine head shell 4, a machine head air inlet 10 and a machine head air return opening 9 are formed in the inner wall of the turbine cavity, the turbine 7 is arranged on the shaft core 6 and is arranged in the turbine cavity, and the rear cover 3 is arranged at the rear end of the machine head shell 4; an air inlet pipe 11 and an air return pipe 8 are arranged in the handle 2, the air inlet pipe 11 is communicated with an air inlet 10 of the machine head, and the air return pipe 8 is communicated with an air return port 9 of the machine head; wherein the rear cover 3 is provided with an air outlet 12, and the air outlet 12 is communicated with the turbine cavity.
The air outlet 12 is arranged on the rear cover 3 right above the air inlet 10 of the machine head and is communicated with the turbine cavity.
As shown in fig. 5, the air outlet 12 is an air hole with a circular arc shape, and the central angle corresponding to the circular arc is not more than 90 °.
The wind-guiding surface is arranged on the windward side of the fan blade of the turbine 7 to pull the airflow towards the rear cover 3, so that the airflow is discharged from the air outlet.
The turbine 7 is arranged on the shaft core 6 through the bearing 5, and gas conveyed by the driving gas pipe 11 enters the turbine cavity through the air inlet 10 of the machine head and is blown to the blades of the turbine, so that the turbine 7 is driven to rotate, and the turbine 7 drives the shaft core 6 to rotate through the bearing 5.
According to the utility model, the air outlet is arranged on the rear cover and is positioned right above the air inlet of the machine head, so that the wind resistance of the turbine blade can be effectively reduced, and the rotation efficiency of the turbine is improved.
Claims (5)
1. The utility model provides a high-speed turbine cell-phone of high efficiency, includes handle and aircraft nose, its characterized in that:
the machine head comprises a machine head shell, a shaft core, a turbine and a rear cover, wherein a turbine cavity is formed in the machine head shell, a machine head air inlet and a machine head air return opening are formed in the inner wall of the turbine cavity, the turbine is arranged on the shaft core and mounted in the turbine cavity, and the rear cover is arranged at the rear end of the machine head shell; an air inlet and an air return port are arranged in the handle, the air inlet is communicated with the air inlet of the machine head, and the air return port is communicated with the air return port of the machine head; the rear cover is provided with an air outlet which is communicated with the turbine cavity.
2. The high-efficiency high-speed turbine handpiece of claim 1, wherein the air outlet is provided in the rear cover directly above the air inlet of the handpiece and communicates with the turbine chamber.
3. The high-efficiency high-speed turbine handpiece of claim 2, wherein the air outlet is circular arc, and the central angle corresponding to the circular arc is not more than 90 °.
4. The high-efficiency high-speed turbine handpiece of claim 2, wherein the windward side of the blade of the turbine is provided with a wind-guiding surface for guiding the air flow to the back cover direction so as to discharge the air flow from the air outlet.
5. A high efficiency, high speed turbine handpiece according to claim 1, wherein said turbine is mounted on the hub by bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322253258.XU CN220237049U (en) | 2023-08-22 | 2023-08-22 | High-efficiency high-speed turbine handpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322253258.XU CN220237049U (en) | 2023-08-22 | 2023-08-22 | High-efficiency high-speed turbine handpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220237049U true CN220237049U (en) | 2023-12-26 |
Family
ID=89268940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322253258.XU Active CN220237049U (en) | 2023-08-22 | 2023-08-22 | High-efficiency high-speed turbine handpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220237049U (en) |
-
2023
- 2023-08-22 CN CN202322253258.XU patent/CN220237049U/en active Active
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