CN107582188B - Anti-emphysema dental handpiece - Google Patents
Anti-emphysema dental handpiece Download PDFInfo
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- CN107582188B CN107582188B CN201710791657.8A CN201710791657A CN107582188B CN 107582188 B CN107582188 B CN 107582188B CN 201710791657 A CN201710791657 A CN 201710791657A CN 107582188 B CN107582188 B CN 107582188B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention discloses an anti-emphysema dental handpiece, which comprises a handle and a handpiece component arranged on the handle; the machine head component comprises a machine head seat, a machine core, a rear cover and a machine needle; a containing cavity for installing the movement is formed between the headstock and the rear cover; the machine core is arranged in the accommodating cavity, and the needle is in transmission connection with the machine core; the movement comprises a shaft core, two bearings arranged on the outer wall of the shaft core, a wind wheel arranged on the outer wall of the shaft core and positioned between the two bearings, and an oil seal with fan blades arranged on the outer wall of the shaft core; the oil seal with the fan blades is arranged at one end of the shaft core, which is close to the needle. Through the one end installation area flabellum oil blanket that is close to the car needle at the axle core, the air current makes the wind wheel high-speed rotatory to drive and take the high-speed rotatory of flabellum oil blanket, generate one and blow the atmospheric pressure of aircraft nose inside direction from car needle direction, thereby offset the inside high atmospheric pressure of core and produced leakage atmospheric pressure from the aircraft nose and the clearance between the core, make the front end reach sealed not exhaust effect.
Description
Technical Field
The invention relates to a medical instrument technology, in particular to an anti-emphysema dental handpiece.
Background
Currently, dental handpieces are special medical equipment for stomatology, and are instruments for cleaning dental calculus and grinding decayed teeth. Existing dental hand pieces include a handle and a hand piece assembly; the machine head assembly comprises a machine core, a needle fixed at one end of the machine core, two bearings supporting the machine core to rotate, and a wind wheel arranged between the two bearings, wherein high-pressure air supplied from an air supply passage arranged in the handle impacts the wind wheel, so that the machine core drives the needle to rotate at a high speed. Because most dental handpieces use air pressure to drive the wind wheel to rotate so as to obtain power, and because the internal air pressure is greater than the atmospheric pressure, the unavoidable gaps at the shaft core, the bearing and other places have the phenomenon of air leakage, namely the air flow can be blown out to the oral cavity of a patient, and thus secondary injuries such as emphysema and the like can be caused to the gum of the patient.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an anti-emphysema dental handpiece. Through set up taking the flabellum oil blanket in the one end that the axle core is close to the car needle, thereby the axle core rotates and drives and take the flabellum oil blanket, takes the flabellum oil blanket to rotate and form an atmospheric pressure, generates the atmospheric pressure that blows from car needle direction toward aircraft nose inside direction to offset the air current pressure that leaks, avoided producing the secondary injury of gum swelling to the patient.
The invention adopts the following technical scheme: an anti-emphysema dental handpiece comprises a handle and a handpiece component arranged on the handle; the machine head assembly comprises a machine head seat, a machine core, a rear cover and a machine needle; an accommodating cavity for installing the movement is formed between the headstock and the rear cover; the machine core is arranged in the accommodating cavity, and the needle is in transmission connection with the machine core; the machine core comprises a shaft core, two bearings arranged on the outer wall of the shaft core, a wind wheel arranged on the outer wall of the shaft core and positioned between the two bearings, and an oil seal with fan blades arranged on the outer wall of the shaft core; the oil seal with the fan blades is arranged at one end of the shaft core, which is close to the needle.
Further, the oil seal with the fan blades comprises an inner ring, an outer ring, a shoulder connecting the inner ring and the outer ring and the fan blades arranged on the shoulder; the inner ring is arranged on the outer wall of the shaft core; the diameter of the outer ring is larger than that of the inner ring; the shoulder is connected to the same side of the inner ring and the outer ring; the fan blades are uniformly distributed on the shoulder.
Further, the number of the fan blades is 3-20, each fan blade is an arc convex strip, and the fan blades are sequentially arranged from the center to the periphery in a radiation manner; the outward direction of the fan blade is opposite to the rotating direction of the shaft core.
Further, the width of the inner ring is greater than the width of the outer ring.
Further, an inclined plane is arranged at the joint of the shoulder and the outer ring; the outer side wall of the outer ring is provided with a boss.
Further, an O-shaped sealing ring is arranged on the outer wall of each bearing.
Further, the movement further comprises a bearing seat and a cylinder; a bearing far away from the turning needle is arranged in the bearing seat, and a gasket is arranged between the bearing and the bearing seat; the tail part of the cylinder body is sleeved on the outer wall of the bearing seat; the bearing seat and the cylinder are both arranged in a containing cavity formed by the headstock and the rear cover.
Further, an O-shaped ring groove is formed in the inner hole of the cylinder body, and an O-shaped sealing ring is correspondingly arranged on the outer wall of each bearing.
Further, a small part of the shaft core extends out of the front end hole of the headstock; the oil seal with the fan blades is arranged on the extended shaft core and is positioned between the headstock and the cylinder body.
Compared with the prior art, the invention has the beneficial effects that:
through the improvement, the air flow of the front end of the dental handpiece blown to the oral cavity of a patient is almost 0 in clinical application, so that the harm of front end exhaust to the gum of a person is effectively eliminated. Specifically through the one end installation area flabellum oil blanket that is close to the car needle at the axle core, the air current makes the wind wheel high-speed rotatory, thereby the core rotates and drives and take flabellum oil blanket high-speed rotatory, takes flabellum oil blanket to rotate and forms a atmospheric pressure, generates the atmospheric pressure that blows from car needle direction toward the inside direction of aircraft nose to offset the inside high atmospheric pressure of core and produced leakage atmospheric pressure from the clearance between aircraft nose and the core, make the front end reach sealed not exhaust effect, avoided producing the secondary injury of gum swelling to the patient.
Drawings
FIG. 1 is a schematic view of an anti-emphysema dental handpiece according to a preferred embodiment of the invention;
FIG. 2 is a schematic structural view of a handpiece assembly;
FIG. 3 is an exploded view of the handpiece assembly;
FIG. 4 is a schematic structural view of the movement;
FIG. 5 is an exploded view of the nose assembly with the nose piece removed;
FIG. 6 is a schematic diagram of a structure with a leaf oil seal;
FIG. 7 is a schematic view of another angle of the oil seal with fan blades;
FIG. 8 is a schematic diagram of fan blade direction and rotation direction.
In the figure: 100. a handpiece assembly; 1. a movement; 11. a shaft core; 12. a bearing; 13. a wind wheel; 14. oil seals with fan blades; 141. an inner ring; 142. an outer ring; 143. a shoulder; 144. a fan blade; 145. a cavity; 146. an inclined surface; 147. a boss; 15. an O-shaped sealing ring; 16. a bearing seat; 17. a cylinder; 18. a gasket; 2. a headstock; 3. a rear cover; 4. turning a needle; 200. a handle; a. the rotation direction of the shaft core; b. the fan blades face outwards.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
1-8, an anti-emphysema dental handpiece includes a handpiece 200, a handpiece assembly 100 disposed on the handpiece; the machine head 100, the machine core 300 comprises a machine needle 1, a shaft core 2 in transmission connection with the machine needle, two bearings 3 arranged on the outer wall of the shaft core, a wind wheel 4 arranged on the outer wall of the shaft core and positioned between the two bearings, a cylinder 5, a bearing seat 6 and an oil seal 7 with fan blades arranged on the outer wall of the shaft core; the oil seal with the fan blades is arranged at one end of the shaft core, which is close to the needle. An anti-emphysema dental handpiece comprises a handle 200 and a handpiece assembly 100 mounted on the handle; the machine head assembly comprises a machine core 1, a machine head seat 2, a rear cover 3 and a machine needle 4; an accommodating cavity for installing the movement is formed between the headstock and the rear cover; the machine core is arranged in the accommodating cavity, and the needle is in transmission connection with the machine core; the movement 1 comprises a shaft core 11, two bearings 12 arranged on the outer wall of the shaft core, a wind wheel 13 arranged on the outer wall of the shaft core and positioned between the two bearings, and an oil seal 14 with fan blades arranged on the outer wall of the shaft core; the oil seal with the fan blades is arranged at one end of the shaft core, which is close to the needle.
Through the improvement, the air flow of the front end of the dental handpiece blown to the oral cavity of a patient is almost 0 in clinical application, so that the harm of front end exhaust to the gum of a person is effectively eliminated. Specifically through the one end installation area flabellum oil blanket that is close to the car needle at the axle core, the air current makes the wind wheel high-speed rotatory, thereby the core rotates and drives and take flabellum oil blanket high-speed rotatory, takes flabellum oil blanket to rotate and forms a atmospheric pressure, generates the atmospheric pressure that blows from car needle direction toward the inside direction of aircraft nose to offset the inside high atmospheric pressure of core and produced leakage atmospheric pressure from the clearance between aircraft nose and the core, make the front end reach sealed not exhaust effect, avoided producing the secondary injury of gum swelling to the patient.
Specifically, the oil seal with fan blades 14 includes an inner ring 141, an outer ring 142, a shoulder 143 connecting the inner ring and the outer ring, and fan blades 144 disposed on the shoulder; the inner ring is arranged on the outer wall of the shaft core; the diameter of the outer ring is larger than that of the inner ring; the shoulder is connected to the same side of the inner ring and the outer ring; the fan blades are uniformly distributed on the shoulder.
A cavity 145 is formed between the inner ring and the outer ring of the oil seal with the fan blades, so that the weight of the whole oil seal with the fan blades can be reduced, and the oil seal can be rotated more lightly and easily; in addition, the width of the inner ring is larger than that of the outer ring, so that the contact area between the inner ring and the shaft core can be increased, transmission is better realized, meanwhile, the wind speed is increased, and the front end exhaust pressure is better counteracted.
The number of the fan blades is 3-20, the number of the fan blades is 8 according to the requirement of air pressure regulation, as a preferred scheme of the application, each fan blade is an arc convex strip, the fan blades are sequentially arranged by radiating from the center to the periphery, the outward direction of the fan blades is opposite to the rotation direction of the shaft core, as shown in fig. 8, a is the rotation direction of the shaft core, and b is the outward direction of the fan blades. The quantity of the fan blades and the wind power generated in the arrangement mode can meet the pressure required by resisting front-end exhaust, and an optimal working condition parameter is achieved.
As a preferred scheme of the application, an inclined plane 146 is arranged at the joint of the shoulder and the outer ring; the outer side wall of the outer ring is provided with a boss 147. The inclined plane forms an inclined plane with the setting position of boss, and the wind-guiding better, offset atmospheric pressure effect is better.
As a preferred embodiment of the present application, an O-ring 15 is mounted to each bearing outer wall.
As a preferred scheme of the application, the movement further comprises a bearing seat 16 and a barrel 17; a bearing far away from the needle is arranged in the bearing seat, and a gasket 18 is arranged between the bearing and the bearing seat; the tail part of the cylinder body is sleeved on the outer wall of the bearing seat; the bearing seat and the cylinder are both arranged in a containing cavity formed by the headstock and the rear cover.
As a preferable scheme of the application, an O-shaped ring groove (not shown in the figure) is formed in the inner hole of the cylinder body, and an O-shaped sealing ring is correspondingly arranged on the outer wall of each bearing.
As a preferred aspect of the application, a small part of the axle core extends out from the front end hole of the headstock; the oil seal with the fan blades is arranged on the extended shaft core and is positioned between the headstock and the cylinder body. An exhaust channel is formed between the headstock and the cylinder body, so that the air is exhausted well.
The anti-emphysema dental handpiece operates as follows:
when the air pressure drives the wind wheel to rotate at a high speed, the wind wheel drives the shaft core to rotate, so that the oil seal with fan blades on the shaft core is driven; the oil seal with the fan blades rotates to form air pressure, and the air pressure from the needle direction to the inner direction of the machine head is generated, so that the front end exhaust pressure is counteracted.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (1)
1. An anti-emphysema dental handpiece is characterized by comprising a handle and a handpiece component arranged on the handle; the machine head assembly comprises a machine head seat, a machine core, a rear cover and a machine needle; an accommodating cavity for installing the movement is formed between the headstock and the rear cover; the machine core is arranged in the accommodating cavity, and the needle is in transmission connection with the machine core; the machine core comprises a shaft core, two bearings arranged on the outer wall of the shaft core, a wind wheel arranged on the outer wall of the shaft core and positioned between the two bearings, and an oil seal with fan blades arranged on the outer wall of the shaft core; the oil seal with the fan blades is arranged at one end of the shaft core, which is close to the needle;
the oil seal with the fan blades comprises an inner ring, an outer ring, a shoulder for connecting the inner ring and the outer ring and the fan blades arranged on the shoulder; the inner ring is arranged on the outer wall of the shaft core; the diameter of the outer ring is larger than that of the inner ring; the shoulder is connected to the same side of the inner ring and the outer ring; the fan blades are uniformly distributed on the shoulder;
the movement also comprises a bearing seat and a cylinder; a bearing far away from the turning needle is arranged in the bearing seat, and a gasket is arranged between the bearing and the bearing seat; the tail part of the cylinder body is sleeved on the outer wall of the bearing seat; the bearing seat and the cylinder are both arranged in a containing cavity formed by the headstock and the rear cover;
a small part of the shaft core extends out of the front end hole of the headstock; the oil seal with the fan blades is arranged on the extended shaft core and is positioned between the headstock and the cylinder body;
the width of the inner ring is larger than that of the outer ring;
an inclined plane is arranged at the joint of the shoulder and the outer ring; the outer side wall of the outer ring is provided with a boss;
an O-shaped sealing ring is arranged on the outer wall of each bearing;
an O-shaped ring groove is formed in the inner hole of the cylinder body, and an O-shaped sealing ring is correspondingly arranged on the outer wall of each bearing;
the number of the fan blades is 3-20, each fan blade is an arc convex strip, and the fan blades are sequentially arranged from the center to the periphery in a radiation way; the outward direction of the fan blade is opposite to the rotating direction of the shaft core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710791657.8A CN107582188B (en) | 2017-09-05 | 2017-09-05 | Anti-emphysema dental handpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710791657.8A CN107582188B (en) | 2017-09-05 | 2017-09-05 | Anti-emphysema dental handpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107582188A CN107582188A (en) | 2018-01-16 |
| CN107582188B true CN107582188B (en) | 2023-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710791657.8A Active CN107582188B (en) | 2017-09-05 | 2017-09-05 | Anti-emphysema dental handpiece |
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| Country | Link |
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| CN (1) | CN107582188B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111938842B (en) * | 2020-08-13 | 2021-07-20 | 何勤 | Dental handpiece with suck-back prevention function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007301249A (en) * | 2006-05-12 | 2007-11-22 | Osada Res Inst Ltd | Dental syringe |
| JP2017104251A (en) * | 2015-12-09 | 2017-06-15 | 株式会社吉田製作所 | Dental handpiece and suction prevention ring sheet thereof |
| JP2017113328A (en) * | 2015-12-24 | 2017-06-29 | 溝部 都孝 | Suction path pipe with dental mirror |
| WO2017121046A1 (en) * | 2016-01-13 | 2017-07-20 | 北京东博气动工具有限公司 | Single-use device for preventing back siphonage in high-speed turbine dental handpiece |
| CN107110222A (en) * | 2014-12-25 | 2017-08-29 | 日本精工株式会社 | Air turbine bearing unit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5512835B2 (en) * | 2013-01-23 | 2014-06-04 | 株式会社吉田製作所 | Dental medical equipment |
| DE102014004699B3 (en) * | 2014-03-31 | 2015-07-02 | Anton Öttl | Dental instrument and protective cap |
| CN205126452U (en) * | 2015-11-03 | 2016-04-06 | 桂林市啄木鸟医疗器械有限公司 | Increase dental handpiece core that keeps off piece |
| CN205947872U (en) * | 2016-06-24 | 2017-02-15 | 重庆西山科技股份有限公司 | Prevent medical drive arrangement of imbibition |
| CN208319338U (en) * | 2017-09-05 | 2019-01-04 | 广东精美医疗科技有限公司 | A kind of anti-wind-puff dental handpiece |
-
2017
- 2017-09-05 CN CN201710791657.8A patent/CN107582188B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007301249A (en) * | 2006-05-12 | 2007-11-22 | Osada Res Inst Ltd | Dental syringe |
| CN107110222A (en) * | 2014-12-25 | 2017-08-29 | 日本精工株式会社 | Air turbine bearing unit |
| JP2017104251A (en) * | 2015-12-09 | 2017-06-15 | 株式会社吉田製作所 | Dental handpiece and suction prevention ring sheet thereof |
| JP2017113328A (en) * | 2015-12-24 | 2017-06-29 | 溝部 都孝 | Suction path pipe with dental mirror |
| WO2017121046A1 (en) * | 2016-01-13 | 2017-07-20 | 北京东博气动工具有限公司 | Single-use device for preventing back siphonage in high-speed turbine dental handpiece |
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| Publication number | Publication date |
|---|---|
| CN107582188A (en) | 2018-01-16 |
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