CN107041787B - Pneumatic turbine cell-phone centre gripping axle - Google Patents
Pneumatic turbine cell-phone centre gripping axle Download PDFInfo
- Publication number
- CN107041787B CN107041787B CN201611263381.8A CN201611263381A CN107041787B CN 107041787 B CN107041787 B CN 107041787B CN 201611263381 A CN201611263381 A CN 201611263381A CN 107041787 B CN107041787 B CN 107041787B
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- Prior art keywords
- turbine
- clamping
- pressing piece
- holder
- piece
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- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/08—Machine parts specially adapted for dentistry
- A61C1/14—Tool-holders, i.e. operating tool holders, e.g. burr holders
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/02—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools
- A61C1/05—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools with turbine drive
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
Pneumatic turbine cell-phone centre gripping axle is equipped with the turbine of through-hole, the holder of setting in the turbine including the middle part, the holder upper end is equipped with the pressing part, the turbine comprises last turbine and lower turbine, the holder is the piping erection, the inside buckling in holder upper end has the clamping part, clamping part upper end border is the opening of loudspeaker form, the pressing part pushes up and is in open-ended interior edge, the holder upper end is equipped with first fluting from top to bottom. The clamping part is loosened through the matching of the horn-shaped opening inclined plane and the pressing piece, the structure of the grinding needle is simple, and the assembly is convenient. The grinding pin clamping device is simple in structure, convenient to produce and assemble, and capable of effectively clamping the grinding pin and preventing the grinding pin from sliding off during working.
Description
Technical Field
The invention relates to a clamping shaft of a pneumatic turbine handpiece.
Background
The conventional pneumatic turbine clamping shaft on the market is small in size, not enough in clamping force and easy to fall off, and is complex in structure and high in production cost, and due to the complex structure, the service cycle is short, for example, in the invention patent with the name of 'a mobile phone head capable of automatically locking by pressing a shaft core and the shaft core thereof' disclosed in Chinese patent library, the patent is 201510147391.4, a rebound device is arranged, the rebound device rebounds through a spring, and a thread structure is arranged on the inner wall of a pressing piece. After the spring is used for a period of time, the threads on the inner wall are easy to wear, and the spring is too small in size and inconvenient to mount.
Disclosure of Invention
In order to overcome the defects of small size, insufficient clamping force and excessively complex structure of the clamping shaft in the prior art, the invention provides the clamping shaft of the pneumatic turbine mobile phone.
The technical scheme for solving the technical problem is as follows: pneumatic turbine cell-phone centre gripping axle is equipped with the turbine of through-hole, the holder of setting in the turbine including the middle part, the holder upper end is equipped with the pressing part, the turbine comprises last turbine and lower turbine, the holder is the piping erection, the inside buckling in holder upper end has the clamping part, clamping part upper end border is the opening of loudspeaker form, the pressing part pushes up and is in open-ended interior edge, the holder upper end is equipped with first fluting from top to bottom. The clamping part is loosened through the matching of the horn-shaped opening inclined plane and the pressing piece, the structure of the grinding needle is simple, and the assembly is convenient.
Further for drop when preventing to operate, holder lower extreme outside is along being equipped with the corner cut, down the turbine middle part be equipped with corner cut complex inclined plane, the holder lower extreme is equipped with the second fluting that sets up from top to bottom. When the grinding needle slides down, the lower end chamfer of the clamping piece is matched with the inclined plane to further clamp the grinding needle, so that the clamping degree is increased, and the grinding needle is prevented from falling off.
The pressing piece is further prevented from falling off during operation, a convex part is arranged on the side face of the lower end of the pressing piece, an inner step is arranged in the middle of the upper turbine, and the top end face of the convex part of the pressing piece is propped against the inner step in the middle of the upper turbine.
And a groove for accommodating the head part of the upper end of the grinding needle is formed in the middle of the lower end face of the pressing piece. The head of the grinding needle is arranged in the groove, so that the stability of the grinding needle is guaranteed, and the radial jump is prevented.
Further, the upper turbine and the lower turbine are fixed through buckling. The tight fit, the fixation and the assembly are convenient,
when the clamping device is assembled, the clamping piece is arranged in the lower turbine, the pressing piece is arranged above the clamping piece, and then the upper turbine is buckled.
The invention has the beneficial effects that: simple structure, production convenience, convenient assembling can effectively carry out the centre gripping to the grinding pin, prevent that the grinding pin is the landing at work.
Drawings
FIG. 1 is a cross-sectional view of the present invention.
Fig. 2 is an exploded view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2: pneumatic turbine cell-phone centre gripping axle is equipped with the turbine of through-hole, the holder 1 of setting in the turbine including the middle part, 1 upper end of holder is equipped with pressing piece 2, the turbine comprises last turbine 3 and lower turbine 4, holder 1 is the pipe dress, 1 upper end of holder is inwards buckled and is had clamping part 5, 5 upper end borders of clamping part are loudspeaker form opening 6, 2 roof pressures of pressing piece are in the interior edge of opening 6, 1 upper end of holder is equipped with first fluting 7 from top to bottom. The clamping portion 5 releases the grinding pin 8 by the inclined surface of the trumpet-shaped opening 6 engaging with the pressing piece 2.
In this embodiment, in order to prevent to drop during the operation, 1 lower extreme outside is along being equipped with chamfer 9, down the turbine 4 middle part be equipped with chamfer complex inclined plane 10, 1 lower extreme of holder is equipped with the second fluting 11 that from top to bottom sets up. When the grinding needle slides down, the lower end chamfer 9 of the clamping piece is matched with the inclined plane 10 to further clamp the grinding needle 8, so that the clamping degree is increased, and the grinding needle 8 is prevented from falling off.
In the embodiment, the pressing piece is prevented from falling off during operation, the side surface of the lower end of the pressing piece 2 is provided with a convex part 12, the middle part of the upper turbine 3 is provided with an inner step 13, and the top end surface of the convex part 12 of the pressing piece 2 is propped against the inner step 13 in the middle part of the upper turbine 3.
In this embodiment, the middle of the lower end surface of the pressing member 2 is provided with a groove 14 for accommodating the head of the upper end of the grinding pin 8. The head of the grinding needle 8 is arranged in the groove, so that the stability of the grinding needle is guaranteed, and radial jump is prevented.
In this embodiment, the upper turbine 3 and the lower turbine 4 are fastened and fixed to each other. The tight fit, the fixation and the assembly are convenient,
when the clamping device is assembled, the clamping piece 1 is only required to be arranged in the lower turbine 4, the pressing piece 2 is arranged above the clamping piece 1, and then the upper turbine 3 is buckled. When in use, the grinding needle 8 is pushed upwards, and the inclined plane at the lower end of the pressing piece 2 is matched with the inner wall of the horn-shaped opening 6 at the upper end of the clamping piece 1 to assist the entering of the grinding needle 8. When the grinding needle 8 slides downwards in use, the clamping piece 1 is driven to move downwards, so that the lower end face of the clamping piece 1 is matched with the inclined surface on the lower turbine 4 to lock the grinding needle. When the grinding needle 8 needs to be disassembled, the pressing piece 2 is pushed downwards, the grinding needle 8 is driven to slide down and the upper end of the pressing piece 2 is opened, the grinding needle is released, and the lower end is not considered to be clamped because the pressing force is greater than the self-sliding force of the grinding needle 8 and is greater than the clamping force of the lower end.
Claims (3)
1. Pneumatic turbine cell-phone centre gripping axle is equipped with the turbine of through-hole, the holder of setting in the turbine including the middle part, the holder upper end is equipped with the pressing part, the turbine comprises last turbine and lower turbine, its characterized in that:
the middle part of the turbine is provided with a cavity for placing a clamping piece, a grinding needle and a pressing piece, the clamping piece is in a tube shape, the upper end of the clamping piece is bent inwards to form a clamping part, the edge of the upper end of the clamping part is a horn-shaped opening, the pressing piece is pressed against the inner edge of the opening, and the upper end of the clamping piece is provided with a first groove from top to bottom;
the outer edge of the lower end of the clamping piece is provided with a chamfer, the middle part of the lower turbine is provided with an inclined plane matched with the chamfer, and the lower end of the clamping piece is provided with a second groove arranged from top to bottom;
the turbine consists of an upper turbine and a lower turbine, the upper turbine and the lower turbine are fixed through buckling, a convex part is arranged on the side face of the lower end of the pressing piece, an inner step is arranged in the middle of the upper turbine, and the top of the upper end face of the convex part of the pressing piece is arranged on the inner step in the middle of the upper turbine.
2. The air turbine handpiece clamping shaft of claim 1, wherein: the middle part of the lower end surface of the pressing piece is provided with a groove for placing the head part of the upper end of the grinding needle.
3. The air turbine handpiece clamping shaft of claim 1, wherein: the cavity pleasure device is arranged from top to bottom, a closing-up portion used for limiting the pressing piece is arranged at the upper end of the cavity, and a convex portion matched with the closing-up portion for limiting is arranged on the side face of the pressing piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611263381.8A CN107041787B (en) | 2016-12-30 | 2016-12-30 | Pneumatic turbine cell-phone centre gripping axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611263381.8A CN107041787B (en) | 2016-12-30 | 2016-12-30 | Pneumatic turbine cell-phone centre gripping axle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107041787A CN107041787A (en) | 2017-08-15 |
| CN107041787B true CN107041787B (en) | 2022-09-13 |
Family
ID=59542938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611263381.8A Active CN107041787B (en) | 2016-12-30 | 2016-12-30 | Pneumatic turbine cell-phone centre gripping axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107041787B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107981937A (en) * | 2017-12-25 | 2018-05-04 | 宁波和平鸽口腔医疗器材有限公司 | Pneumatic turbine turbine wheel shaft |
| CN112483190B (en) * | 2020-11-27 | 2022-05-13 | 日照黎阳工业装备有限公司 | Turbine blade based on aeroengine possesses vortex structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55116614U (en) * | 1979-02-09 | 1980-08-18 | ||
| US4611990A (en) * | 1985-01-14 | 1986-09-16 | Lares Research | Dental handpiece construction |
| US4669982A (en) * | 1984-12-21 | 1987-06-02 | Siemens Aktiengesellschaft | Dental handpiece arrangement with an illumination device |
| EP0401987A2 (en) * | 1989-06-05 | 1990-12-12 | Midwest Dental Products Corporation | Dental handpiece |
| CN201399002Y (en) * | 2009-06-23 | 2010-02-10 | 佛山市碧盈医疗器材有限公司 | Push-type high-speed turbine dental hand piece |
| CN103040531A (en) * | 2011-10-12 | 2013-04-17 | 刘晓霞 | Anti-back-siphonage head of engine bit |
| CN207071106U (en) * | 2016-12-30 | 2018-03-06 | 宁波和平鸽口腔医疗器材有限公司 | Air impeller mobile phone clamps axle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010037791B4 (en) * | 2010-09-27 | 2024-05-08 | Minebea Mitsumi Inc. | Clamping device for a dental tool in a dental turbine handpiece |
| DE102012023437A1 (en) * | 2012-11-30 | 2014-06-18 | Minebea Co., Ltd. | Concentricity-optimized tool clamping system for dental handpieces and dental turbines |
-
2016
- 2016-12-30 CN CN201611263381.8A patent/CN107041787B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55116614U (en) * | 1979-02-09 | 1980-08-18 | ||
| US4669982A (en) * | 1984-12-21 | 1987-06-02 | Siemens Aktiengesellschaft | Dental handpiece arrangement with an illumination device |
| US4611990A (en) * | 1985-01-14 | 1986-09-16 | Lares Research | Dental handpiece construction |
| EP0401987A2 (en) * | 1989-06-05 | 1990-12-12 | Midwest Dental Products Corporation | Dental handpiece |
| CN201399002Y (en) * | 2009-06-23 | 2010-02-10 | 佛山市碧盈医疗器材有限公司 | Push-type high-speed turbine dental hand piece |
| CN103040531A (en) * | 2011-10-12 | 2013-04-17 | 刘晓霞 | Anti-back-siphonage head of engine bit |
| CN207071106U (en) * | 2016-12-30 | 2018-03-06 | 宁波和平鸽口腔医疗器材有限公司 | Air impeller mobile phone clamps axle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107041787A (en) | 2017-08-15 |
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