CN208725914U - A kind of dental handpiece with dust-proof mechanism - Google Patents
A kind of dental handpiece with dust-proof mechanism Download PDFInfo
- Publication number
- CN208725914U CN208725914U CN201820623991.2U CN201820623991U CN208725914U CN 208725914 U CN208725914 U CN 208725914U CN 201820623991 U CN201820623991 U CN 201820623991U CN 208725914 U CN208725914 U CN 208725914U
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- Prior art keywords
- dust
- bearing
- casing
- proof mechanism
- dental handpiece
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Abstract
The utility model discloses a kind of dental handpiece with dust-proof mechanism, including head, handle and quick connector, head is made into integration with handle, the end of handle is arranged in quick connector, head includes casing and the machine mandrel through casing, first bearing is disposed in casing, turbine and second bearing, turbine is installed in casing by first bearing and second bearing, the bottom end of machine mandrel is provided with vehicle needle, dust-proof mechanism is provided between the bottom end and machine mandrel of casing, dust-proof mechanism includes dust-proof cushion and dustproof cover, dust-proof cushion is set on outside the machine mandrel, dustproof cover is fixed on the inner wall of casing, air flow channel is formed between dust-proof cushion and dustproof cover.The utility model reduces foreign matter contact or builds up in the probability of casing inner bearing, improves the service life of high speed turbine mobile phone, and then solve the problems, such as that the use of dental handpiece be easy to cause cross-infection between patient.
Description
Technical field
The utility model relates to dental equipment technical field, in particular to a kind of dental handpiece with dust-proof mechanism.
Background technique
Dental handpiece is a kind of common medical instrument of the department of stomatology, its working principle is that using high pressure air pressure blow turbine after
And run at high speed with motor-car needle, revolving speed dispels dental caries bad tissue, or preparation usually at 200,000 revs/min or more, to cut tooth body
Baking-ceramic tooth, it can also be used to artificial tooth of polishing etc..
The various types of high speed dental turbo mobile phone, in addition in quality other than difference, there are also it is miscellaneous not
Same appearance and diversified subsidiary function, such as the mode of loading-unloading vehicle needle just have thimble-type, tighten formula and push button；It is cold
But mode has that spraying with single hole, diplopore is spraying, three holes are spraying and four holes are spraying；Have with illumination functions；There is band air blowing function
Can；Have with anti-resorption function；Have with quick connector；It also varies in terms of torque, also specializes in backteeth and children
The mini head used, even there are also automatically pressure limitings etc. for other aspects.
Dental handpiece when being cut or being ground, some clasts and dust can from the gap of head shell and machine mandrel into
Enter in the bearing in a shell cavity, so that bearing wear quickening, service life reduction.In addition, the dirt of patient's mouth enters in head,
It is difficult to clean, be easy to cause cross-infection between patient, produce serious influence to the health of patient.
Utility model content
The utility model provides a kind of dental handpiece with dust-proof mechanism, solves existing dental handpiece due to clast
The problem of entering head with dust and influencing its service life.
In order to solve the above technical problems, the technical solution adopted by the utility model is:
A kind of dental handpiece with dust-proof mechanism, including head, handle and quick connector, the head and the handle
It is made into integration, the end of the handle is arranged in the quick connector, and the head includes casing and the machine through the casing
Mandrel is disposed with first bearing, turbine and second bearing in the casing, and the turbine passes through the first bearing and institute
It states second bearing to be installed in the casing, the bottom end of the machine mandrel is provided with vehicle needle, the bottom end of the casing and the machine
Dust-proof mechanism is provided between mandrel, the dust-proof mechanism includes dust-proof cushion and dustproof cover, and the dust-proof cushion is set on described
Outside machine mandrel, the dustproof cover is fixed on the inner wall of the casing, forms air between the dust-proof cushion and the dustproof cover
Runner.
Wherein it is preferred to which the dust-proof cushion top is provided with the protrusion along machine mandrel's radial direction, set on the dustproof cover
It is equipped with the annular groove along machine mandrel's radial direction, the radial protrusion and the annular groove are corresponding.
Wherein it is preferred to which the contact position of the dustproof cover and the casing inner wall is provided with the first sealing ring.
Wherein it is preferred to be provided with resilient cushion between the dustproof cover and the first bearing.
Wherein it is preferred to be provided with steel pad between the resilient cushion and the first bearing.
Wherein it is preferred to which the contact position of the first bearing and the second bearing and the casing inner wall is provided with the
Two sealing rings.
Wherein it is preferred to which the handle bending setting, is provided with the luminous group of LED light close to the lower portion thereof of the head
Part, the LED light luminescence component include LED light mounting groove, and the LED light mounting groove is the axial projection along the handle, are made
The range of exposures of LED light is the vehicle needle.
Wherein it is preferred to which the first bearing and the second bearing and the machine mandrel are interference fitted, magnitude of interference is
0.5~1.5 μm.
The utility model has the beneficial effects that
The utility model dust-proof cushion and dustproof cover match to form dust-proof mechanism, and the path for making foreign matter enter head becomes
Complexity can prevent foreign matter from entering head, to reduce foreign matter contact or build up in the probability of casing inner bearing, improve high speed
The service life of turbine hand machine, and then solve the problems, such as that the use of dental handpiece be easy to cause cross-infection between patient, it protects
The health of patient, keeps the therapeutic process safer.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of dental handpiece heads in the utility model；
Fig. 2 is the structural schematic diagram of the utility model dental handpiece.
In figure, 1. casings, 2. machine mandrels, 3. first bearings, 4. turbines, 5. second bearings, 6. vehicle needles, 7. dust-proof cushions, 7-
1. radial protrusion, 8. dustproof covers, 8-1. annular groove, 9. first sealing rings, 10. resilient cushions, 11. second sealing rings, 12. machines
Head, 13. handles, 14. quick connectors, 15. steel pads, 16.LED lamp mounting groove.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As depicted in figs. 1 and 2, the present embodiment provides a kind of dental handpiece with dust-proof mechanism, including head, handle and
Quick connector, the head are made into integration with the handle, and the end of the handle is arranged in the quick connector, and head includes
Casing 1 and machine mandrel 2 through casing 1 are disposed with first bearing 3, turbine 4 and second bearing 5 in casing 1, and turbine 4 is logical
It crosses first bearing 3 and second bearing 5 is installed in casing 1, the bottom end of machine mandrel 2 is provided with vehicle needle 6, the bottom end of casing 1 and machine
Dust-proof mechanism is provided between mandrel 2, dust-proof mechanism includes dust-proof cushion 7 and dustproof cover 8, and dust-proof cushion 7 is set on machine mandrel 2
Outside, dustproof cover 8 is fixed on the inner wall of casing 1, forms air flow channel between dust-proof cushion 7 and dustproof cover 8.Dust-proof cushion 7 and dust-proof
Lid 8 matches to form dust-proof mechanism, and the path for making foreign matter enter head becomes complicated, foreign matter can be prevented to enter head, thus
It reduces foreign matter contact or builds up in the probability of 1 inner bearing of casing, improve the service life of 4 mobile phone of high-speed turbine, and then solve
The problem of use of dental handpiece of having determined be easy to cause cross-infection between patient.
Wherein, 7 top of dust-proof cushion is provided with the protrusion radial along machine mandrel 2, is provided on dustproof cover 8 along 2 diameter of machine mandrel
To annular groove 8-1, radial protrusion 7-1 and the annular groove 8-1 it is corresponding.Dust-proof cushion 7 and 8 axial-radial of dustproof cover are not
Disconnected transformation has delayed passing through for air-flow, also, when dust-proof cushion 7 and machine mandrel 2 rotate together with can generate negative pressure, further delay
Passing through for air-flow, also further reduces the probability that foreign matter enters head.
Wherein, the contact position of dustproof cover 8 and 1 inner wall of casing is provided with the first sealing ring 9.Snare is sealed on dustproof cover 8
Further play dustproof effect.The material of sealing ring can be fluorubber material, and the sealing ring of the material has good resistance to
Hot and oil resistivity.
Wherein, resilient cushion 10 is provided between dustproof cover 8 and first bearing 3, the outer diameter of resilient cushion 10 is slightly larger than bearing
Outer diameter, resilient cushion 10 obstructed the vibration generated when bearing rotary and noise, avoided the head shell of metallic to noise
Further enter big, play the role of noise reduction and stable operation, improve the comfort used.Also, resilient cushion 10 and first
It is provided with steel pad 15 between bearing 3, reduces abrasion of machine mandrel's high speed rotation to resilient cushion 10.
Wherein, the contact position of first bearing 3 and second bearing 5 and 1 inner wall of casing is respectively arranged with the second sealing ring 11.
Wherein, handle bending setting is provided with LED light luminescence component close to the lower portion thereof of the head, and LED light shines
Component includes LED light mounting groove 16, and LED light mounting groove 16 is the axial projection along handle, makes the range of exposures vehicle of LED light
Needle.LED light luminescence component is not disposed on head, easy for assemble or unload.
First bearing 3 and second bearing 5 and machine mandrel 2 are interference fitted, and magnitude of interference is 0.5~1.5 μm.3 He of first bearing
Second bearing 5 and the interference fit of machine mandrel 2 can vibration problems of effective solution dental handpiece when running at high speed.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (8)
1. a kind of dental handpiece with dust-proof mechanism, including head, handle and quick connector, the head and the handle one
System is at the end of the handle is arranged in the quick connector, and the head includes casing and the machine core through the casing
Axis, is disposed with first bearing, turbine and second bearing in the casing, and the turbine passes through the first bearing and described
Second bearing is installed in the casing, and the bottom end of the machine mandrel is provided with vehicle needle, it is characterised in that: the bottom end of the casing
Dust-proof mechanism is provided between the machine mandrel, the dust-proof mechanism includes dust-proof cushion and dustproof cover, and the dust-proof cushion is arranged
It sets outside the machine mandrel, the dustproof cover is fixed on the inner wall of the casing, between the dust-proof cushion and the dustproof cover
Form air flow channel.
2. a kind of dental handpiece with dust-proof mechanism according to claim 1, it is characterised in that: the dust-proof cushion top
It is provided with the protrusion along machine mandrel's radial direction, the annular groove along machine mandrel's radial direction, institute are provided on the dustproof cover
It states radial protrusion and the annular groove is corresponding.
3. a kind of dental handpiece with dust-proof mechanism according to claim 2, it is characterised in that: the dustproof cover and institute
The contact position for stating casing inner wall is provided with the first sealing ring.
4. a kind of dental handpiece with dust-proof mechanism according to claim 1, it is characterised in that: the dustproof cover and institute
It states and is provided with resilient cushion between first bearing.
5. a kind of dental handpiece with dust-proof mechanism according to claim 4, it is characterised in that: the resilient cushion and institute
It states and is provided with steel pad between first bearing.
6. a kind of dental handpiece with dust-proof mechanism according to claim 1, it is characterised in that: the first bearing and
The contact position of the second bearing and the casing inner wall is provided with the second sealing ring.
7. a kind of dental handpiece with dust-proof mechanism according to claim 1, it is characterised in that: the handle bending is set
It sets, the lower portion thereof of the head is provided with LED light luminescence component, the LED light luminescence component includes LED light installation
Slot, the LED light mounting groove are the axial projection along the handle, make the range of exposures of the LED light vehicle needle.
8. a kind of dental handpiece with dust-proof mechanism according to claim 1, it is characterised in that: the first bearing and
The second bearing and the machine mandrel are interference fitted, and magnitude of interference is 0.5~1.5 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820623991.2U CN208725914U (en) | 2018-04-27 | 2018-04-27 | A kind of dental handpiece with dust-proof mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820623991.2U CN208725914U (en) | 2018-04-27 | 2018-04-27 | A kind of dental handpiece with dust-proof mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208725914U true CN208725914U (en) | 2019-04-12 |
Family
ID=66022142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820623991.2U Expired - Fee Related CN208725914U (en) | 2018-04-27 | 2018-04-27 | A kind of dental handpiece with dust-proof mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208725914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110301989A (en) * | 2019-08-13 | 2019-10-08 | 广东精美医疗科技有限公司 | A kind of high speed air-driven turbine dental handpiece of anti-resorption |
-
2018
- 2018-04-27 CN CN201820623991.2U patent/CN208725914U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110301989A (en) * | 2019-08-13 | 2019-10-08 | 广东精美医疗科技有限公司 | A kind of high speed air-driven turbine dental handpiece of anti-resorption |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190412 Termination date: 20200427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |