CN202223362U - Tooth drill nose for avoiding sucking back - Google Patents
Tooth drill nose for avoiding sucking back Download PDFInfo
- Publication number
- CN202223362U CN202223362U CN2011201882190U CN201120188219U CN202223362U CN 202223362 U CN202223362 U CN 202223362U CN 2011201882190 U CN2011201882190 U CN 2011201882190U CN 201120188219 U CN201120188219 U CN 201120188219U CN 202223362 U CN202223362 U CN 202223362U
- Authority
- CN
- China
- Prior art keywords
- elastica
- wheel shaft
- turbine wheel
- head
- dental drill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000004816 latex Substances 0.000 claims description 29
- 229920000126 latex Polymers 0.000 claims description 29
- 230000000123 anti-resoprtive effect Effects 0.000 claims description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 239000012528 membrane Substances 0.000 abstract 6
- 210000003128 head Anatomy 0.000 description 44
- 230000004323 axial length Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
Images
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model aims at providing a tooth drill nose for avoiding sucking back. A nose is not provided with a light and consists of a nose shell, a wind wheel and a bearing; and an air outlet passageway of the nose is provided with a check valve. For the tooth drill nose for avoiding sucking back, a sealing piece of the check valve is fixed in the nose and is sleeved around a turbine shaft or a machine needle, and the sealing piece tightly wraps the turbine shaft and the machine needle during sealing. As an elastic membrane is very soft, the elastic membrane is elastically covered on one sides of an inner ring and an outer ring of the bearing in a sticking manner; and in negative pressure, the elastic membrane clings to the sides of the inner ring and the outer ring of the bearing so as to achieve an effect of avoiding sucking back. The periphery of the elastic membrane is fixed in the nose; as the diameter of a central hole is less than that of the turbine shaft or the machine needle, when the turbine shaft or the machine needle passes through the central hole, the parts with the diameters being less than the diameter of the turbine shaft or the machine needle around the central hole of the elastic membrane wraps the turbine shaft or the machine needle and tightly wraps the turbine shaft or the machine needle; and under the state of negative pressure, as the negative pressure is very small, the elastic membrane can still tightly wrap the turbine shaft or the machine needle so as to achieve the effect of avoiding sucking back.
Description
Technical field
This utility model relates to a kind of anti-resorption dental drill head.
Background technology
In general; Head as the air type topping machanism of dental; Have head on its top; The parts of necessary cutting element are housed in this head, comprise cutting element armature spindle, support 2 bearings of gyroaxis and be configured in 2 impellers between the bearing portion, make the pressure-air of supplying with to gas circuit in the handle portion that is configured in head impact impeller and make the cutting element revolution., in having the air type topping machanism of such formation, because head stretches in the oral cavity, block light easily, cause operation inconvenience, existing band lamp is hand-held to be bored, and light can not the direct projection drill bit, anti-suck-back device complicacy etc.The application number PCT/CN2010/073256 that our company has applied for, the hand-held international application that bores of denomination of invention tooth section turbine is though light can the direct projection drill bit; And anti-suck-back device is simple, still, and when the ring-type battery places outer race outside; Make that the space that holds the ring-type battery is very little, volume of battery will be very little, increase the manufacture difficulty of ring-type battery; If ring-type battery and bearing laterally arrange, just increased the axial length of head.In order to reduce the axial length of head, applied for patent of invention No. 201010268696.8, solved the axial length problem of head, still, the two does not all separate never the anti-resorption problem with the head of lamp.
Summary of the invention
The purpose of this utility model provides a kind of anti-resorption dental drill head, and head is not provided with lamp.
This utility model is achieved in that a kind of anti-resorption dental drill head, is made up of head shell, wind wheel and bearing, on the outlet passageway of head check valve is set.
Described anti-resorption dental drill head is characterized in that: the sealing member of said check valve is fixed in the head and is enclosed within around turbine wheel shaft or the car pin, and sealing member is held turbine wheel shaft or car pin tightly during sealing.
Described anti-resorption dental drill head, it is characterized in that: the sealing member of said check valve is an elastica, and elastica is fixed on bearing inner ring and outer shroud side, and sealing member is adjacent to inner and outer ring during sealing.
Described anti-resorption dental drill head, it is characterized in that: said check valve is an elastica, the elastica periphery is fixed in the head; Elastica is provided with centre bore; Center-hole diameter is less than turbine wheel shaft or car pin diameter, and turbine wheel shaft or car pin pass centre bore, and elastica wraps on turbine wheel shaft or the car pin.
Described anti-resorption dental drill head; It is characterized in that: the elastica periphery is thick, and to center attenuation gradually, the elastica top and bottom form angle; Hold turbine wheel shaft or car pin tightly under the elastica centre bore part naturalness, separate with tight turbine wheel shaft or car pin when the elastica centre bore is partly given vent to anger.
Described anti-resorption dental drill head, it is characterized in that: elastica thickness is identical, holds turbine wheel shaft or car pin tightly under the elastica centre bore part naturalness, separates with turbine wheel shaft or car pin when the elastica centre bore is partly given vent to anger.
Described anti-resorption dental drill head, it is characterized in that: elastica simultaneously is the plane, and the elastica periphery is thick; To center attenuation gradually; The elastica top and bottom form angle, are adjacent to the bearing inner and outer ring under the one side naturalness of elastica plane, separate with inner and outer ring when giving vent to anger or separate with outer shroud.
Described anti-resorption dental drill head, it is characterized in that: elastica thickness is identical, is adjacent to the bearing inner and outer ring under the elastica one side naturalness, separates with inner and outer ring when giving vent to anger or separates with outer shroud.
Described anti-resorption dental drill head, it is characterized in that: said elastica is one of silica gel, latex or soft rubber.
This utility model reaches anti-resorption effect because elastica is very soft, and elasticity pastes in bearing inner ring and outer shroud side under the naturalness, and during negative pressure, elastica just is close to bearing inner ring and outer shroud side; The elastica periphery is fixed in the head, because center-hole diameter is less than turbine wheel shaft or car pin diameter, when turbine wheel shaft or car pin pass centre bore; Part less than turbine wheel shaft or car pin diameter around the elastica centre bore wraps on turbine wheel shaft or the car pin; And hold turbine wheel shaft or car pin tightly, under the negative pressure state, because negative pressure is very little; Elastica is still held turbine wheel shaft or car pin tightly, reaches anti-resorption effect.
Description of drawings
The even elastica naturalness of Fig. 1 thickness sectional structure sketch map;
The even elastica duty of Fig. 2 thickness sectional structure sketch map;
The outer thick interior thin elastica naturalness sectional structure sketch map of Fig. 3;
The outer thick interior thin elastica duty sectional structure sketch map of Fig. 4.
The specific embodiment
Like Fig. 1,2 one kinds of anti-resorption dental drill heads, form by head shell 1, wind wheel 2 and bearing 3, on the outlet passageway up and down of head check valve is set.
The sealing member of check valve is latex film 4-1 on the following outlet passageway of said head; Latex film 4-1 thickness is even, and latex film 4-1 periphery is fixed between bearing 3 outer shrouds and the head shell, and latex film 4-1 is provided with centre bore; Center-hole diameter is less than the turbine wheel shaft diameter of wind wheel 2; The turbine wheel shaft of wind wheel 2 passes centre bore, and the latex film around the centre bore is held tightly on the turbine wheel shaft of wind wheel 2, the blow off turbine wheel shaft of wind wheel 2 of the latex film around the centre bore.Certainly, also can pass centre bore by the car pin, the latex film around the centre bore is held tightly on the car pin.
The sealing member of check valve is latex film 4-1 on the last outlet passageway of said head, and latex film 4-1 thickness is even, and latex film 4-1 periphery is fixed between bearing 3 outer shrouds and the head shell, and latex film 4-1 is provided with centre bore, and latex film 4-1 is adjacent to bearing 3 inner and outer rings.During work, latex film 4-1 bearing 3 inner and outer rings that blow off.
Like Fig. 3,4, a kind of anti-resorption dental drill head is made up of head shell 1, wind wheel 2 and bearing 3, on the outlet passageway up and down of head check valve is set.
The sealing member of check valve is latex film 4-2 on the following outlet passageway of said head, and latex film 4-2 periphery is thick, to center attenuation gradually; The elastica top and bottom form angle, and latex film 4-2 periphery is fixed between bearing 3 outer shrouds and the head shell, and latex film 4-2 is provided with centre bore; Center-hole diameter is less than the turbine wheel shaft diameter of wind wheel 2; The turbine wheel shaft of wind wheel 2 passes centre bore, and the latex film around the centre bore is held tightly on the turbine wheel shaft of wind wheel 2, the blow off turbine wheel shaft of wind wheel 2 of the latex film around the centre bore.Certainly, also can pass centre bore by the car pin, the latex film around the centre bore is held tightly on the car pin.
The sealing member of check valve is latex film 4-2 on the last outlet passageway of said head; Latex film 4-2 periphery is thick; To center attenuation gradually, the elastica top and bottom form angle, and latex film 4-2 periphery is fixed between bearing 3 outer shrouds and the head shell; Latex film 4-2 is provided with centre bore, and latex film 4-2 is adjacent to bearing 3 inner and outer rings.During work, latex film 4-2 bearing 3 inner and outer rings that blow off.
Above-mentioned elastica is a latex, also can replace with silica gel or soft rubber.
Unload pin dental drill head if push, so just can not establish check valve; The head lid is arranged on the below among the above-mentioned figure, and the head lid also can be arranged on the top.
Claims (9)
1. an anti-resorption dental drill head is made up of head shell, wind wheel and bearing, it is characterized in that: on the outlet passageway of head check valve is set.
2. anti-resorption dental drill head as claimed in claim 1 is characterized in that: the sealing member of said check valve is fixed in the head and is enclosed within around turbine wheel shaft or the car pin, and sealing member is held turbine wheel shaft or car pin tightly during sealing.
3. anti-resorption dental drill head as claimed in claim 1, it is characterized in that: the sealing member of said check valve is an elastica, and elastica is fixed on bearing inner ring and outer shroud side, and sealing member is adjacent to inner and outer ring during sealing.
4. anti-resorption dental drill head as claimed in claim 2; It is characterized in that: said check valve is an elastica; The elastica periphery is fixed in the head, and elastica is provided with centre bore, and center-hole diameter is less than turbine wheel shaft or car pin diameter; Turbine wheel shaft or car pin pass centre bore, and elastica wraps on turbine wheel shaft or the car pin.
5. anti-resorption dental drill head as claimed in claim 4; It is characterized in that: the elastica periphery is thick; To center attenuation gradually; The elastica top and bottom form angle, hold turbine wheel shaft or car pin tightly under the elastica centre bore part naturalness, separate with turbine wheel shaft or car pin when the elastica centre bore is partly given vent to anger.
6. anti-resorption dental drill head as claimed in claim 4, it is characterized in that: elastica thickness is identical, holds turbine wheel shaft or car pin tightly under the elastica centre bore part naturalness, separates with tight turbine wheel shaft or car pin when the elastica centre bore is partly given vent to anger.
7. anti-resorption dental drill head as claimed in claim 3; It is characterized in that: elastica simultaneously is the plane; The elastica periphery is thick, and to center attenuation gradually, the elastica top and bottom form angle; Be adjacent to the bearing inner and outer ring under the one side naturalness of elastica plane, separate with inner and outer ring when giving vent to anger or separate with outer shroud.
8. anti-resorption dental drill head as claimed in claim 4, it is characterized in that: elastica thickness is identical, is adjacent to the bearing inner and outer ring under the elastica one side naturalness, separates with inner and outer ring when giving vent to anger or separates with outer shroud.
9. like claim 3,4,5,6,7 or 8 described anti-resorption dental drill heads, it is characterized in that: said elastica is one of silica gel, latex or soft rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201882190U CN202223362U (en) | 2010-09-07 | 2011-05-26 | Tooth drill nose for avoiding sucking back |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020519642 | 2010-09-07 | ||
| CN201020519642.X | 2010-09-07 | ||
| CN2011201882190U CN202223362U (en) | 2010-09-07 | 2011-05-26 | Tooth drill nose for avoiding sucking back |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202223362U true CN202223362U (en) | 2012-05-23 |
Family
ID=46073973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201882190U Expired - Fee Related CN202223362U (en) | 2010-09-07 | 2011-05-26 | Tooth drill nose for avoiding sucking back |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202223362U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104783910A (en) * | 2015-04-27 | 2015-07-22 | 刘帆 | Anti-back-siphonageturbine handpiece connector of integral dental equipment |
| TWI504375B (en) * | 2014-09-18 | 2015-10-21 | Metal Ind Res & Dev Ct | Bone implant drill |
| CN105380718A (en) * | 2015-12-21 | 2016-03-09 | 咸阳西北医疗器械(集团)有限公司 | Dust prevention structure for dental handpiece |
| CN106073909A (en) * | 2016-05-31 | 2016-11-09 | 北京东博气动工具有限公司 | High speed turbine dental drill hand piece zero suck-back device |
| CN106580484A (en) * | 2016-12-30 | 2017-04-26 | 宁波和平鸽口腔医疗器材有限公司 | Disinfection-free pneumatic turbine handpiece |
| 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 |
| CN108060947A (en) * | 2017-12-27 | 2018-05-22 | 江苏益齿星医疗器械有限公司 | Anti- suck-back device is braked in pressing |
-
2011
- 2011-05-26 CN CN2011201882190U patent/CN202223362U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI504375B (en) * | 2014-09-18 | 2015-10-21 | Metal Ind Res & Dev Ct | Bone implant drill |
| CN104783910A (en) * | 2015-04-27 | 2015-07-22 | 刘帆 | Anti-back-siphonageturbine handpiece connector of integral dental equipment |
| CN105380718A (en) * | 2015-12-21 | 2016-03-09 | 咸阳西北医疗器械(集团)有限公司 | Dust prevention structure for dental handpiece |
| CN105380718B (en) * | 2015-12-21 | 2018-04-24 | 咸阳西北医疗器械(集团)有限公司 | Dustproof construction for dental handpiece |
| 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 |
| CN106073909A (en) * | 2016-05-31 | 2016-11-09 | 北京东博气动工具有限公司 | High speed turbine dental drill hand piece zero suck-back device |
| CN106580484A (en) * | 2016-12-30 | 2017-04-26 | 宁波和平鸽口腔医疗器材有限公司 | Disinfection-free pneumatic turbine handpiece |
| CN106580484B (en) * | 2016-12-30 | 2022-05-06 | 宁波和平鸽口腔医疗器材有限公司 | Disinfection-free pneumatic turbine head |
| CN108060947A (en) * | 2017-12-27 | 2018-05-22 | 江苏益齿星医疗器械有限公司 | Anti- suck-back device is braked in pressing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHENGZHOU ZEZHENG TECHNOLOGY SERVICE CO., LTD. Free format text: FORMER OWNER: LIU XIAOXIA Effective date: 20140416 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140416 Address after: Zheng Dong New District Agricultural Road South, Chak Henan West 450000 street, city of Zhengzhou province (city square) A Building 1 floor of No. 226 Patentee after: Zhengzhou Zezheng Technology Service Co., Ltd. Address before: 450000, Zhengzhou, Henan Province, Jinshui Road, No. 8, blue sky District, building 3, unit 3, West floor, 6 households Patentee before: Liu Xiaoxia |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20160526 |