CN105581847B - The dental handpiece of tightness adjustable - Google Patents
The dental handpiece of tightness adjustable Download PDFInfo
- Publication number
- CN105581847B CN105581847B CN201610032260.6A CN201610032260A CN105581847B CN 105581847 B CN105581847 B CN 105581847B CN 201610032260 A CN201610032260 A CN 201610032260A CN 105581847 B CN105581847 B CN 105581847B
- Authority
- CN
- China
- Prior art keywords
- bearing
- regulating part
- casing
- bearing block
- dental handpiece
- 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.)
- Active
Links
- 230000001105 regulatory effect Effects 0.000 claims abstract description 35
- 230000035939 shock Effects 0.000 claims description 22
- 229920000297 Rayon Polymers 0.000 claims description 3
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 230000036316 preload Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
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
-
- 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
- A61C1/18—Flexible shafts; Clutches or the like; Bearings or lubricating arrangements; Drives or transmissions
- A61C1/181—Bearings or lubricating arrangements, e.g. air-cushion bearings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C2204/00—Features not otherwise provided for
Landscapes
- 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)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention discloses a kind of dental handpieces of tightness adjustable, and including the head and handle being connected, head includes casing, regulating part and bearing block, and regulating part is connected with bearing block, and the outer wall of regulating part is threadedly coupled with casing.As a result, by controlling to adjust the length of part precession casing, you can adjust the tightness that bearing install in bearing block, the i.e. free gap of adjusting bearing and preload.When bearing ball is worn, and diameter reduces, increase the length of regulating part precession casing, reduce the distance of bearing outer ring and inner ring, it eliminates bearing clearance and makes it have effect, appropriate preload, and solve the problems, such as ball abrasion noise increase, be effectively increased the service life of dental handpiece.
Description
Technical field
The present invention relates to medical instrument, more particularly to a kind of dental handpiece of tightness adjustable.
Background technology
In existing technology, the bearing at the top of the head of dental handpiece is mounted in casing by bearing block,
Bearing block is generally interference fitted with rear cover, and rear cover is threadably secured with casing and connect.
When dental handpiece works, the rotating speed of bearing inner race reaches 10~400,000 revs/min, bearing high speed rotation, bearing
Ball easily wear.Due to bearing wear, the service life of dental handpiece only 3~6 months.
Invention content
One of the object of the present invention is to provide a kind of dental handpiece of tightness adjustable, can at least solve the above problems.
To achieve the above object, according to an aspect of the invention, there is provided a kind of dental handpiece of tightness adjustable, including
The head and handle being connected, head include casing, regulating part and bearing block, and regulating part is connected with bearing block, regulating part
Outer wall be threadedly coupled with casing.As a result, by controlling to adjust the length of part precession casing, you can adjust bearing and pacify in bearing block
The tightness of dress adjusts free gap and the preload of bearing.When bearing ball is worn, and diameter reduces, increase
The length of regulating part precession casing, make the distance of bearing outer ring and inner ring reduce, eliminate bearing clearance make it have effect, suitably
Preload, and solve the problems, such as ball abrasion noise increase, it is effectively increased the service life of dental handpiece.
In some embodiments, regulating part is an integral structure with bearing block.So as to make handpiece structure simple, it is easy to raw
Production.
In some embodiments, the junction of casing and regulating part is equipped with viscose.So as to make the company of regulating part and casing
It connects more securely.
In some embodiments, one end of regulating part is connect with casing, and the other end is equipped with rear cover.Rear cover is set as a result,
It puts with proofing dust and protecting effect.
In some embodiments, the outer wall of regulating part be equipped with the first thread segment and the second thread segment, the first thread segment with
Casing matches, and the second thread segment is matched with rear cover.
In some embodiments, regulating part top is equipped with groove, and recessed side portions or bottom are equipped with multiple operating grooves.So as to
Convenient for being operated to regulating part.
In some embodiments, the inboard bearing of bearing block is equipped with the first shock absorbing ring and the between bearing block and bearing
Two shock absorbing rings, bearing are equipped with L-type slot, and the cell wall of the first shock absorbing ring and L-type slot offsets, the outer wall phase of the second shock absorbing ring and bearing
It supports.The first shock absorbing ring provides buffering axially and radially for bearing as a result, and the second shock absorbing ring is provided for bearing and radially buffered, axis
Endurance is uniform, forced area is big, reduces bear vibration, can reduce the operation noise of dental handpiece, and improve making for bearing
Use the service life.
In some embodiments, bearing block inner wall is equipped with the first groove and the second groove, and the first shock absorbing ring is located at first
In groove, the second shock absorbing ring is located in the second groove.Two shock absorbing rings are installed in groove as a result, prevent shock absorbing ring from shifting.
Beneficial effects of the present invention are：The dental handpiece of the present invention adjusts the elastic of bearing installation using regulating part, that is, adjusts
The free gap of bearings and preload can effectively improve the service life of dental handpiece.First shock absorbing ring and the second shock absorbing ring
Setting shaft strength is uniform, forced area is big, reduce bear vibration, the operation noise of dental handpiece can be reduced, further
Improve the service life of bearing.
Description of the drawings
Fig. 1 is the structure diagram of the dental handpiece of the embodiment of the present invention 1；
Fig. 2 is the structure diagram of the head of dental handpiece shown in Fig. 1；
Fig. 3 is the schematic diagram of the regulating part of dental handpiece shown in Fig. 1 and bearing block integral structure.
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
Embodiment 1
As shown in Figures 1 to 3, the dental handpiece of the tightness adjustable of the present embodiment includes the head 1 being connected and handle 2.Machine
First 1 includes casing 11, regulating part 12 and bearing block 13.Regulating part 12 is an integral structure with bearing block 13, is specifically integrated
Molding structure.One end of regulating part 12 is connect with casing 11, and the other end is connected with rear cover 14.The connection of casing 11 and regulating part 12
The end at place is equipped with viscose, for making casing 11 and the connection of regulating part 12 more firm.
The inside of bearing block 13 is equipped with bearing 15, subtracts between bearing block 13 and bearing 15 equipped with the first shock absorbing ring 16 and second
Shake circle 17.The outer ring of bearing 15 is equipped with L-type slot, and the cell wall of the first shock absorbing ring 16 and L-type slot offsets, the second shock absorbing ring 17 and axis
The outer wall held offsets.
As shown in figure 3, the outer wall of regulating part 12 is equipped with the first thread segment 121 and the second thread segment 122.First thread segment
121 match with casing 11, and the second thread segment 122 is matched with rear cover 14.12 top of regulating part is equipped with groove, and recessed side portions are opened
Equipped with multiple operating grooves 123, in order to be operated to regulating part 12.It should be noted that operating groove 123 also may be provided in groove
Bottom.
13 inner wall of bearing block offers the first groove 131 and the second groove 132, and the first shock absorbing ring 16 is located at the first groove
In 131, the second shock absorbing ring 17 is located in the second groove 132.
When dental handpiece is using a period of time, bearing roller is worn, and when increasing the noise of dental handpiece, can be passed through
Tool is caught in operating groove 123, realizes the adjusting that 11 length of casing is screwed in regulating part 12, and then adjusts the pine that bearing 15 is installed
The free gap of tight degree, i.e. bearing 15 installation and preload reach the effect for reducing noise, extending dental handpiece service life
Fruit.
Embodiment 2
As different from Example 1, the regulating part 12 of the present embodiment is equipped with the boss to offset with bearing block 13.Regulating part 12
It is coated on bearing block 13, the two is interference fit.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
It encloses.
Claims (3)
1. the dental handpiece of tightness adjustable, which is characterized in that including the head (1) being connected and handle (2), the head (1)
Including casing (11), regulating part (12) and bearing block (13), the regulating part (12) is connected with bearing block (13), the tune
The outer wall of section part (12) is threadedly coupled with casing (11), and one end of the regulating part (12) is connect with casing (11), and the other end is set
There is a rear cover (14), the outer wall of the regulating part (12) is equipped with the first thread segment (121) and the second thread segment (122), and described first
Thread segment (121) is matched with casing (11), and second thread segment (122) matches with rear cover (14), the casing (11)
Viscose is equipped with the junction of regulating part (12), regulating part (12) top is equipped with groove, and the recessed side portions or bottom are set
There are multiple operating grooves (123), the regulating part (12) is an integral structure with bearing block (13).
2. the dental handpiece of tightness adjustable according to claim 1, which is characterized in that set on the inside of the bearing block (13)
There is bearing (15), the first shock absorbing ring (16) and the second shock absorbing ring (17), institute are equipped between the bearing block (13) and bearing (15)
Bearing (15) is stated to offset equipped with L-type slot, first shock absorbing ring (16) and the cell wall of L-type slot, second shock absorbing ring (17) with
The outer wall of bearing (15) offsets.
3. the dental handpiece of tightness adjustable according to claim 2, which is characterized in that bearing block (13) inner wall is equipped with
First groove (131) and the second groove (132), in the first groove (131), described second subtracts first shock absorbing ring (16)
Shake circle (17) is in the second groove (132).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610032260.6A CN105581847B (en) | 2016-01-18 | 2016-01-18 | The dental handpiece of tightness adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610032260.6A CN105581847B (en) | 2016-01-18 | 2016-01-18 | The dental handpiece of tightness adjustable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105581847A CN105581847A (en) | 2016-05-18 |
| CN105581847B true CN105581847B (en) | 2018-06-22 |
Family
ID=55922020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610032260.6A Active CN105581847B (en) | 2016-01-18 | 2016-01-18 | The dental handpiece of tightness adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105581847B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106344181A (en) * | 2016-10-09 | 2017-01-25 | 周展力 | Novel dental handpiece nose |
| CN117498609B (en) * | 2023-12-23 | 2024-03-12 | 广东敏卓机电股份有限公司 | Shaded pole motor structure and assembly process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10211215A (en) * | 1997-01-29 | 1998-08-11 | Osada Res Inst Ltd | Head part structure of hand piece for dentistry |
| CN204636577U (en) * | 2015-05-19 | 2015-09-16 | 佛山市驰康医疗器材有限公司 | The head of dental handpiece |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002238922A (en) * | 2001-02-13 | 2002-08-27 | Nakanishi:Kk | Hand piece for dentistry |
-
2016
- 2016-01-18 CN CN201610032260.6A patent/CN105581847B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10211215A (en) * | 1997-01-29 | 1998-08-11 | Osada Res Inst Ltd | Head part structure of hand piece for dentistry |
| CN204636577U (en) * | 2015-05-19 | 2015-09-16 | 佛山市驰康医疗器材有限公司 | The head of dental handpiece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105581847A (en) | 2016-05-18 |
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| GR01 | Patent grant |