CN2209958Y - Dental straight hand-piece - Google Patents
Dental straight hand-piece Download PDFInfo
- Publication number
- CN2209958Y CN2209958Y CN 94223441 CN94223441U CN2209958Y CN 2209958 Y CN2209958 Y CN 2209958Y CN 94223441 CN94223441 CN 94223441 CN 94223441 U CN94223441 U CN 94223441U CN 2209958 Y CN2209958 Y CN 2209958Y
- Authority
- CN
- China
- Prior art keywords
- main shaft
- shaft
- outer shaft
- pull bar
- utility
- 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
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Abstract
The utility model relates to a straight hand-piece for dentistry, comprising outer shaft sleeves (4, 8), a main shaft (7), a draw rod (6) and a needle (1) from the exterior to the interior. The utility model is characterized in that the outer shaft sleeves are composed of a front conical shaft sleeve (4) and a rear cylindrical shaft sleeve (8) which form screw connection; both ends of the rear shaft sleeve (8) are respectively provided with small steps, and a bearing (5) is arranged between the rear shaft sleeve (8) and the main shaft (7); the draw rod (6) is arranged in the main shaft (7), the tail end is extended out of the main shaft (7) and forms the screw connection with a tail cap (13), and the front end is provided with a spring clamp head (2) provided with a conical table head; the front end of the main shaft (7) is abutted against the conical surface of the clamp head position (2) of the draw rod. The utility model has the advantages of simpler and firmer structure, few components, easy production and mounting and dismounting, and good reliability and shakeproof property.
Description
This utility model relates to a kind of tooth section electric tool that tooth is holed, cut or polishes of being used for, specifically a kind of tooth section straight vehicle head.
The structure of traditional tooth section straight vehicle head as shown in Figure 2, comprise outer shaft (27) from outside to inside, main shaft (24,26), pull bar (25) and car pin (21), because the restriction of processing technique, simultaneously also for the ease of mounting or dismounting, former and later two parts (24) that main shaft is designed to be threaded mutually, (26), main shaft (26) tail end grows outer shaft (27) and connects lead wheel (31) by dog screw, pull bar (25) is positioned at back main shaft (26), and be threaded with back main shaft (26) at front end, lay thimble rod (23) in the forward spindle (24), three flower spring chuck (22) and car pins (21), car pin (21) makes chuck (22) clampingc car pin (21) by the restriction of the anterior conical surface of main shaft (24) by three flower spring chuck (22) clampings simultaneously by pull bar (25) extruding thimble rod (23); Such structure makes when mounting or dismounting, must earlier front and back main shaft (24,26) be separated, thimble rod (23), chuck (22), car pin (21) could be taken out successively then, and, take out its quite difficulty because chuck (22) tightly is attached on the inwall of forward spindle (24); The cumulative errors that simultaneously a plurality of part combinations cause can cause alignment relatively poor, and how number of parts itself just makes installation, dismounting become difficult and loaded down with trivial details and processing inconvenience; On the other hand, take out main shaft (24,26) take off earlier pull bar (25), lead wheel (31) and steel turn-buckle (30) (as bearing) from behind successively, also be the same inconvenient problem of mounting or dismounting.(nut (29) connects turning circle (28) and outer shaft (27), and whole headstock is connected on the support by turning circle (28) usually).
The purpose of this utility model provides more simple, the simple load and unload tooth of a kind of structure section straight vehicle head with regard to being for the defective that overcomes above-mentioned prior art.
Scheme of the present utility model is: tooth section comprises outer shaft from outside to inside with straight vehicle head, main shaft, pull bar and car pin, the outer shaft tail end is with turning circle, main shaft is positioned at outer shaft and tail end grows outer shaft and is connected with the lead wheel, it is characterized in that outer shaft is made up of taper front shaft sleeve that is threaded mutually and cylindricality rear axle housing, the two ends of rear axle housing respectively have small stair and and main shaft between lay bearing, pull bar is positioned at main shaft and tail end and grows main shaft and be connected with the tail cap thread, its front end is the collet of a band frustum head, front-end of spindle promptly is against on the conical surface at draw bar chuck position, car pin rear portion is by the chuck clamping of pull bar front end, and head is stretched outside front shaft sleeve.
Compared with prior art, this utility model structure is more simple, compact, and parts are few, be easy to make and mounting or dismounting, and reliability, shock resistance is good.
Description of drawings.
Fig. 1 is structural representation of the present utility model (partly cuing open).
Fig. 2 is the structural representation (partly cuing open) of conventional tooth section straight vehicle head.
Embodiment is described in further detail this utility model below in conjunction with accompanying drawing.
As shown in Figure 1; tooth section comprises outer shaft (4 from outside to inside with straight vehicle head; 8); main shaft (7); pull bar (6) and car pin (1); outer shaft is made up of taper front shaft sleeve that is threaded mutually and cylindricality rear axle housing; small stair is respectively arranged and lay miniature bearing (5) at the two ends of rear axle housing (8); fore bearing (5) is spacing by front shaft sleeve (4); rear bearing (5) is spacing by the protection nut (10) that is connected with rear axle housing (8) tailing screw flight; protection nut (10) defines the position that is positioned at before it and is enclosed within the turning circle (9) of rear axle housing (8) afterbody simultaneously; turning circle (9) can rotate freely around outer shaft (8); whole headstock is connected on the support by turning circle (9) usually; main shaft (7) is positioned at outer shaft (4; 8) interior and tail end grows outer shaft (8) and is connected with lead wheel (12) by dog screw (11); pull bar (6) is positioned at main shaft (7) and tail end and grows main shaft (7) and be threaded with tail medicated cap (13); its front end is the collet (2) of a band frustum head; main shaft (7) front end promptly is against on the conical surface of draw bar chuck position (2); car pin (1) rear portion is by chuck (2) clamping of pull bar front end, and head is stretched outside front shaft sleeve (4).
In the present embodiment, be the power of further reducing friction, respectively adopted a pair of miniature bearing (5) at the two ends of rear axle housing (7).
During work, outer power exports lead wheel (12) to, makes it rotate, thereby bore mill together with main shaft (7), pull bar (6), car pin (1); When the pin of more changing trains (1), only need unscrew tail medicated cap (13), pull bar (6) is protracted, its front end chuck (2) unclamps car backshank end, can unload the pin of getting off (1), change the new car pin after, only need screw tail medicated cap (13), contract after making pull bar (6), its front end chuck (2) tightens up and clampingc car pin (1) under the front-end of spindle restriction; And to unload whole main shaft (7), also only need screw off protection nut (10) and make it to get final product with outer shaft (8) disengaging.
In addition, this utility model can be used for also that orthopaedics bores the grinder tool or as engraving tool.
Claims (1)
1, a kind of tooth section straight vehicle head, comprise outer shaft (4 from outside to inside, 8), main shaft (7), pull bar (6) and car pin (1), outer shaft (8) tail end is with turning circle (9), main shaft (7) is positioned at outer shaft (4,8) interior and tail end grows outer shaft (4,8) and be connected with lead wheel (13), it is characterized in that: outer shaft is made up of taper front shaft sleeve (4) that is threaded mutually and cylindricality rear axle housing (8), the two ends of rear axle housing (8) respectively have small stair and and main shaft (7) between lay bearing (5), pull bar (6) is positioned at main shaft (7) and tail end and grows main shaft (7) and be threaded with tail medicated cap (13), its front end is the collet (2) of a band frustum head, main shaft (7) front end promptly is against on the conical surface of draw bar chuck position (2), car pin (1) rear portion is by chuck (2) clamping of pull bar front end, and head is stretched outside front shaft sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94223441 CN2209958Y (en) | 1994-10-12 | 1994-10-12 | Dental straight hand-piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94223441 CN2209958Y (en) | 1994-10-12 | 1994-10-12 | Dental straight hand-piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2209958Y true CN2209958Y (en) | 1995-10-18 |
Family
ID=33837139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94223441 Expired - Fee Related CN2209958Y (en) | 1994-10-12 | 1994-10-12 | Dental straight hand-piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2209958Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104055585A (en) * | 2013-03-21 | 2014-09-24 | 山东威高集团医用高分子制品股份有限公司 | Dental nerve broach |
| US9387051B2 (en) | 2011-05-13 | 2016-07-12 | Propel Orthodontics, Llc | Method and device for causing tooth movement |
| USD761963S1 (en) | 2014-07-29 | 2016-07-19 | Propel Orthodontics, Llc | Microperforation dental device |
| US9687323B2 (en) | 2012-06-07 | 2017-06-27 | Propel Orthodontics, Llc | Temporary anchorage device with external plate |
-
1994
- 1994-10-12 CN CN 94223441 patent/CN2209958Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9387051B2 (en) | 2011-05-13 | 2016-07-12 | Propel Orthodontics, Llc | Method and device for causing tooth movement |
| US9814547B2 (en) | 2011-05-13 | 2017-11-14 | Propel Orthodontics, Llc | Method and device for causing tooth movement |
| US10245122B2 (en) | 2011-05-13 | 2019-04-02 | Advanced Orthodontics And Education Association, Llc | Method and device for causing tooth movement |
| US9687323B2 (en) | 2012-06-07 | 2017-06-27 | Propel Orthodontics, Llc | Temporary anchorage device with external plate |
| CN104055585A (en) * | 2013-03-21 | 2014-09-24 | 山东威高集团医用高分子制品股份有限公司 | Dental nerve broach |
| USD761963S1 (en) | 2014-07-29 | 2016-07-19 | Propel Orthodontics, Llc | Microperforation dental device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |