CN204169941U - A kind of main shaft of dental medical tool - Google Patents
A kind of main shaft of dental medical tool Download PDFInfo
- Publication number
- CN204169941U CN204169941U CN201420446036.8U CN201420446036U CN204169941U CN 204169941 U CN204169941 U CN 204169941U CN 201420446036 U CN201420446036 U CN 201420446036U CN 204169941 U CN204169941 U CN 204169941U
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- sandwich
- axle housing
- spring
- main shaft
- diameter
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Abstract
This utility model relates to a kind of main shaft of dental medical tool, for dental medical tool, it discloses described main shaft is by axle housing, sandwich, spring, sandwich ring forms, and is successively set in axle housing, there is gap between sandwich ring and sandwich before and after described sandwich ring and sandwich, the tail end of sandwich protrudes outside axle housing, on the rear of sandwich, cover has spring, and one end of spring heads on the tail end of sandwich, and the other end of spring heads on the muscle of axle housing internal projection; The leading portion of sandwich is tubaeform, is provided with the cavity segment adapted with sandwich loudspeaker section shape in axle housing, the diameter 0.1mm to 0.5mm less of the diameter of sandwich loudspeaker section of this cavity segment.The utility model has the advantages that rational in infrastructure, easy to operate, can clamp rod by quick-replaceable, and there is not the existing picture being commonly called as flying needle when using after installing, the dental nursing for dentist brings conveniently and safety.
Description
Technical field
This utility model relates to a kind of main shaft of dental medical tool, and specifically a kind of sandwich contraction clip grips the main shaft holding rod.
Background technology
When dentist carries out dental nursing, dental medical tool is a kind of common tool and can changes different clamping rods in the course of the work according to different working conditions in dental medical tool use procedure, at this moment main shaft design just seems very important to the excellent existing picture being commonly called as flying needle that whether facilitates and whether easily come off after replacing of changing of clamping, and the wearing and tearing of main existence clamping rod in life-time service process allow the grip force of main shaft sandwich reduce in present spindle design, the existing picture of flying needle often has generation, allows the dental nursing of dentist bring inconvenience and potential safety hazard.
Utility model content
The purpose of this utility model is to provide a kind of main shaft of dental medical tool, and it can change clamping rod easily, and there is not the existing picture being commonly called as flying needle when using after installing, and the dental nursing for dentist brings conveniently.
Technical solution of the present utility model is at hand machine head, and clamping rod, on the basis of main shaft, the main shaft that is characterized in described is by axle housing, sandwich, spring, sandwich ring forms, be successively set in axle housing before and after described sandwich ring and sandwich, there is gap between sandwich ring and sandwich, the tail end of sandwich protrudes outside axle housing, and on the rear of sandwich, cover has spring, one end of spring heads on the tail end of sandwich, and the other end of spring heads on the muscle of axle housing internal projection; The leading portion of sandwich is tubaeform, is provided with the cavity segment adapted with sandwich loudspeaker section shape in axle housing, the diameter 0.1mm to 0.5mm less of the diameter of sandwich loudspeaker section of this cavity segment.
Operation principle of the present utility model is designed to horn mouth in the jaws of sandwich, when needing to change clamping rod firmly the tail end of pressing sandwich make spring-compressed simultaneously sandwich move forward, horn mouth is in loose state, now clamp rod and lose the bell-mouthed grip force of sandwich, can change easily, the pressure unclamping sandwich tail end after replacing make spring stretches simultaneously sandwich move backward, horn mouth is in the state of tightening up, excellent consolidation with main shaft under the bell-mouthed grip force of sandwich is connected in now clamping, that is afraid of that there are wearing and tearing on clamping rod face of cylinder when life-time service, diameter diminishes and is not also afraid of, the diminished distance of just sandwich movement when the stretching, extension of spring of diameter is elongated, and it is constant to the grip force of clamping rod, if it is little of not being clamped to clamp excellent diameter, when changing, dentist will find, thus effectively prevent from being commonly called as the existing picture of flying needle.
The utility model has the advantages that rational in infrastructure, easy to operate, can clamp rod by quick-replaceable, and there is not the existing picture being commonly called as flying needle when using after installing, the dental nursing for dentist brings conveniently and safety.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model when hand machine head is installed.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is sectional structure schematic diagram of the present utility model.
Fig. 4 is decomposition sectional structure schematic diagram of the present utility model.
Detailed description of the invention
Embodiment 1
According to Fig. 1, Fig. 2, Fig. 3, Fig. 4, this utility model is at hand machine head 1, clamping rod 3, on the basis of main shaft 2, the main shaft 2 that is characterized in described is by axle housing 4, sandwich 5, spring 8, sandwich ring 7 forms, and is successively set in axle housing 4, there is gap between sandwich ring 7 and sandwich 5 before and after described sandwich ring 7 and sandwich 5, the tail end of sandwich 5 protrudes outside axle housing 4, on the rear of sandwich 5, cover has spring 8, and one end of spring 8 heads on the tail end of sandwich 5, and the other end of spring 8 heads on the muscle of axle housing 4 internal projection; The leading portion of sandwich 5 is tubaeform, is provided with the cavity segment 6 adapted with sandwich loudspeaker section shape in axle housing, the diameter 0.1mm less of the diameter of sandwich loudspeaker section of this cavity segment 6
Embodiment 2
Basic with embodiment 1, its different place is: the diameter 0.25mm less of the diameter of sandwich loudspeaker section of cavity segment 6.
Embodiment 3
Basic with embodiment 1, its different place is: the diameter 0.5mm less of the diameter of sandwich loudspeaker section of cavity segment 6.
Claims (1)
1. a main shaft for dental medical tool, it comprises hand machine head, clamping rod, main shaft, is characterized in that described main shaft is by axle housing, sandwich, spring, sandwich ring forms, and is successively set in axle housing, there is gap between sandwich ring and sandwich before and after described sandwich ring and sandwich, the tail end of sandwich protrudes outside axle housing, on the rear of sandwich, cover has spring, and one end of spring heads on the tail end of sandwich, and the other end of spring heads on the muscle of axle housing internal projection; The leading portion of sandwich is tubaeform, is provided with the cavity segment adapted with sandwich loudspeaker section shape in axle housing, the diameter 0.1mm to 0.5mm less of the diameter of sandwich loudspeaker section of this cavity segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420446036.8U CN204169941U (en) | 2014-08-08 | 2014-08-08 | A kind of main shaft of dental medical tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420446036.8U CN204169941U (en) | 2014-08-08 | 2014-08-08 | A kind of main shaft of dental medical tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204169941U true CN204169941U (en) | 2015-02-25 |
Family
ID=52558788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420446036.8U Active CN204169941U (en) | 2014-08-08 | 2014-08-08 | A kind of main shaft of dental medical tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204169941U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104706430A (en) * | 2015-03-30 | 2015-06-17 | 桂林市啄木鸟医疗器械有限公司 | Dental high-speed turbine handpiece head and central spindle thereof |
| CN104706431A (en) * | 2015-03-30 | 2015-06-17 | 桂林市啄木鸟医疗器械有限公司 | Handpiece capable of automatically locking by pressing central spindle and central spindle for handpiece |
-
2014
- 2014-08-08 CN CN201420446036.8U patent/CN204169941U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104706430A (en) * | 2015-03-30 | 2015-06-17 | 桂林市啄木鸟医疗器械有限公司 | Dental high-speed turbine handpiece head and central spindle thereof |
| CN104706431A (en) * | 2015-03-30 | 2015-06-17 | 桂林市啄木鸟医疗器械有限公司 | Handpiece capable of automatically locking by pressing central spindle and central spindle for handpiece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |