CN109199609A - A kind of detachable dental handpiece with anti-loose safety device - Google Patents
A kind of detachable dental handpiece with anti-loose safety device Download PDFInfo
- Publication number
- CN109199609A CN109199609A CN201810988223.1A CN201810988223A CN109199609A CN 109199609 A CN109199609 A CN 109199609A CN 201810988223 A CN201810988223 A CN 201810988223A CN 109199609 A CN109199609 A CN 109199609A
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- China
- Prior art keywords
- mandril
- mounting base
- wall
- seal gasket
- dental handpiece
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- 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
- A61C1/06—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 electric drive
-
- 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
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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)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention discloses a kind of detachable dental handpiece with anti-loose safety device, including fuselage, attachment base, head；Head includes handpiece case, splits seat；Fuselage includes fuselage cover, hollow mounting base, retarder, mandril；Attachment base is fixed on retarder, and retarder is fixed in hollow mounting base；Fuselage cover is set in the outer wall of hollow mounting base and retarder；Jack is equipped on the lower part of hollow mounting base and attachment base；Mandril is equipped with mandril radial direction boss, and the bottom end of mandril is inserted into the jack of hollow mounting base, and is protruded from other than hollow mounting base, and mandril radial direction boss is connected to above jack, and the top of mandril is inserted into the jack of attachment base.The application is by setting anti-loose structure and detachable structure, and when operating dental handpiece, mandril is protruded into limit slot, it is not easy to skid off, it prevents from causing connecting portion to loosen due to high-speed rotation, causes safety accident, while carrying out more effective cleaning convenient for postoperative disassembly main component.
Description
Technical field
The present invention relates to a kind of medical device technology more particularly to a kind of detachable dentistry hands with anti-loose safety device
Machine.
Background technique
Dental handpiece is a kind of dental care commonly medical instrument, by higher speed rotatable engagement different shape vehicle needle,
Positioning drilling can be carried out to oral hard tissue, expansion is even cut, and blood would generally be generated in patient's mouth surgical procedure
The infectious agents such as liquid, saliva penetrate into interior of mobile phone, and each component is difficult to dismantle, and are difficult to be cleaned, and long-term accumulation influences hand
The service life of machine, and it be easy to cause cross-infection.
Existing dental handpiece is made of fuselage and head, and fuselage and head are dismountable mounting means, but existing
Removably uses screw-type connection, but since the rotation vibration of course of work high speed be easy to cause the connection of fuselage and head
It loosens.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of with the removable of anti-loose safety device
Unload dental handpiece.
The purpose of the present invention adopts the following technical scheme that realization: a kind of detachable dentistry hand with anti-loose safety device
Machine, including fuselage, attachment base, head；The attachment base is fixed on the top of fuselage, and the head is detachably connected on attachment base
On；
The head includes handpiece case, the fractionation seat for being fixed on handpiece case bottom；The fractionation seat is detachably connected
On attachment base；The downward side for splitting seat is equipped with limit slot；
The fuselage includes fuselage cover, hollow mounting base, retarder, mandril；The attachment base is fixed on retarder,
Retarder is fixed in hollow mounting base；The fuselage cover is set in the outer wall of hollow mounting base and retarder；It is described hollow
The lower part of mounting base is equipped with jack, and the attachment base is equipped with jack；The mandril is equipped with mandril radial direction boss, the bottom of mandril
End is inserted into the jack of hollow mounting base, and is protruded from other than hollow mounting base, and mandril radial direction boss is connected to above jack,
The top of mandril is inserted into the jack of attachment base；When dental handpiece work, power device is fixedly mounted in fuselage
In empty mounting base, move up the mandril protruded from other than hollow mounting base, the limit that fractionation seat is protruded on the top of mandril is inserted
In slot.
Further, it is equipped with and splits the limiting stand that seat fastens at the top of the attachment base, it is radially convex on limiting stand
Equipped with limit raised line；The sliding slot that the downward side for splitting seat is equipped with notch and is connected to notch；The fractionation seat is fastened on
When the limiting stand of attachment base, raised line being limited along notch and enters sliding slot, and rotates fractionation seat, limit raised line is made to be limited in sliding slot
It is interior.
Further, the limit slot is overlapped with notch.
Further, anti-slip groove and guiding surface are equipped in the sliding slot.
Further, which further includes reset spring, and it is radial that the hollow mounting base outer wall is equipped with mounting base
Boss, the spring are inserted on mandril at the top of mandril, and the bottom end of spring is connected on mandril radial direction boss, and the top of spring is supported
It connects on mounting base radial direction boss.
Further, the head further includes cartridge assemblies and transmission shaft；The cartridge assemblies include fore bearing, rear axle
It holds, main shaft, lock shaft, vehicle needle；Machine core chamber and transmission axocoel are formed inside the handpiece case；The fore bearing, rear bearing, master
Axis, that lock shaft is installed in machine core is intracavitary；It is intracavitary that the transmission shaft is mounted on transmission shaft；The inner wall of the fore bearing, rear bearing
It is set in the outer surface at main shaft both ends, the outer wall abutting machine core chamber of fore bearing, rear bearing；The lock shaft wears and is fixed on master
One end of the inside of axis, lock shaft is stretched out outside machine core chamber；The vehicle needle and lock shaft are sequentially connected；The spindle outer wall is equipped with machine
Core gear, the machine core gear is between fore bearing, rear bearing；Described transmission shaft one end is connect with machine core gear drive, another
End is connect with speed reducer drive.
Further, the transmission teeth being sequentially connected with transmission shaft bottom end, retarder bottom are equipped at the top of the retarder
Equipped with the transmission teeth being sequentially connected with power device.
Further, the head further includes preceding seal gasket, rear seal gasket, gasket, retaining ring；The preceding seal gasket
Inner wall is set on the outer wall of lock shaft, and preceding seal gasket outer wall is close to machine core chamber；Seal gasket inner wall is set in master after described
On the outer wall of axis, rear seal gasket outer wall is close to machine core chamber；The preceding seal gasket, rear seal gasket be sequentially located at fore bearing,
The outside of rear bearing；The gasket is arranged between preceding seal gasket and fore bearing；Retaining ring setting rear seal gasket with
Between rear bearing.
Further, the outside of the preceding seal gasket is equipped with annular convex platform, the handpiece case inner wall and preceding sealant
The limiting slot being adapted to annular convex platform is equipped at pad outer wall abutting.
Further, the longitudinal section of the retaining ring is L-shaped, and the rear seal gasket is limited in the L-type slot of retaining ring.
Compared with prior art, the beneficial effects of the present invention are:
(1) the application is by being arranged anti-loosening structure, i.e. the cooperation running of mandril, fractionation seat, attachment base；When dentistry hand
When machine works, power device is fixedly connected with the hollow mounting base on fuselage, at this time under the pressure effect of power device, is made
It protrudes from the mandril other than hollow mounting base to move up, the top of mandril is protruded into the limit slot for splitting seat, and mandril is consolidated
It is scheduled in limit slot, it is not easy to skid off, prevent from causing connecting portion to loosen due to high-speed rotation, cause safety accident.Work as tooth
When section's mobile phone stops working, after dismantling power device, mandril moves down reset under the effect of gravity, so that mandril is detached from limit and inserts
Slot, head and attachment base realize rotatable disassembly, facilitate head, cleaning maintenance head prevents cross-infection, and extends dentistry
The service life of mobile phone.
(2) in addition, its working environment of the cartridge assemblies of dental handpiece is mostly cavity interior, the use environment it is more moist and
Bacterium is more.Therefore higher to the sealing requirements of cartridge assemblies, such as poor sealing, steam or bacterium are easily accessible dentistry
In mobile phone, since dental handpiece needs to reuse, into mobile phone steam and bacterium to be easy to make cartridge assemblies to generate rotten
Erosion or bacteria breed are a large amount of, are unfavorable for medical treatment use.It is logical that the application double containment cartridge assemblies play the role of main seal
It crosses the front and rear sides in machine core shell and preceding seal gasket, rear seal gasket, preceding seal gasket, rear seal gasket and machine core shell is set
The abutting of body limits compound action, since fore bearing and the inner ring of rear bearing, outer ring and other component contact position certainly exist seam
Gap, current seal gasket and rear seal gasket are corresponding to compress fore bearing and rear bearing, makes watery blood can not be by the gap between bearing
Enter in the cavity formed between part fore bearing, rear bearing and main shaft, prevent the components such as bearing, machine core gear because water,
Vapour enters and generates corrosion.To sum up, the embodiment of double containment, preventing steam from entering inside machine core causes machine core to get rusty,
Extend bearing service life.
(3) dismountable structure is set, that is, increases and splits seat and the detachable of attachment base and combine, tear fuselage and head open
More simple and effective, the cleaning easy to disassemble come out convenient for postoperative main component are unloaded, cleaning thoroughly, prevents cross-infection,
And extend the service life of plantation mobile phone, avoid steam and bacterium in mobile phone be easy to make cartridge assemblies generate corrosion or
Breed a large amount of bacteriums.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of detachable dental handpiece of the present pre-ferred embodiments with anti-loose safety device；
Fig. 2 is the cross-sectional view in Fig. 1 along line A-A；
Fig. 3 is that the internal structure of detachable dental handpiece of the present pre-ferred embodiments with anti-loose safety device is illustrated
Figure；
Fig. 4 is the enlarged diagram of B area in Fig. 3；
Fig. 5 is the structural schematic diagram that present pre-ferred embodiments split seat；
Fig. 6 is the structural schematic diagram of present pre-ferred embodiments attachment base；
Fig. 7 is the structural schematic diagram of present pre-ferred embodiments retarder；
Fig. 8 is the cross-sectional view of present pre-ferred embodiments cartridge assemblies；
Fig. 9 is the enlarged diagram in the region C in Fig. 8；
Figure 10 is the enlarged diagram in the region D in Fig. 8；
Figure 11 is the structural schematic diagram of seal gasket before present pre-ferred embodiments；
Figure 12 is the structural schematic diagram of present pre-ferred embodiments retaining ring.
In figure: 1, head；11, handpiece case；111, limiting slot；12, seat is split；121, slot is limited；122, notch；
123, sliding slot；1231, anti-slip groove；1232, guiding surface；13, cartridge assemblies；131, fore bearing；132, rear bearing；133,
Main shaft；134, lock shaft；135, preceding seal gasket；1351, annular convex platform；136, rear seal gasket；137, gasket；138, it keeps off
Circle；1381, L-type slot；14, transmission shaft；2, attachment base；21, limiting stand；22, raised line is limited；3, fuselage；31, fuselage cover；32,
Hollow mounting base；321, mounting base radial direction boss；33, retarder；331, teeth are driven；34, mandril；341, mandril radial convex
Platform；35, jack；36, reset spring.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the present invention, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
As shown in Figs 1-4, a kind of detachable dental handpiece with anti-loose safety device, including fuselage 3, attachment base 2, machine
First 1；The attachment base is fixed on the top of fuselage, and the head is detachably connected on attachment base；
The head includes handpiece case 11, the fractionation seat 12 for being fixed on handpiece case bottom；The fractionation seat is detachable
It is connected on attachment base；The downward side for splitting seat is equipped with for limiting the movable limit slot 121 of mandril, such as Fig. 4 institute
Show；
The fuselage includes fuselage cover 31, hollow mounting base 32, retarder 33, mandril 34；The attachment base is fixed on
On retarder, retarder is fixed in hollow mounting base；The fuselage cover is set in the outer wall of hollow mounting base and retarder；
The lower part of the hollow mounting base is equipped with jack 35, and the attachment base is equipped with jack 35；It is radial that the mandril is equipped with mandril
Boss 341, the bottom end of mandril are inserted into the jack of hollow mounting base, and are protruded from other than hollow mounting base, mandril radial convex
Platform is connected to above jack, and the top of mandril is inserted into the jack of attachment base；When dental handpiece work, by power device
(not shown) is fixedly mounted in the hollow mounting base of fuselage, moves up the mandril protruded from other than hollow mounting base,
The top of mandril is protruded into the limit slot for splitting seat.In the present embodiment, which is air impeller, passes through pneumatic whirlpool
The mode that wheel handset port is connected through a screw thread is fixed on hollow mounting base bottom.
The course of work of the anti-loosening dental handpiece of the application is as follows:
When dental handpiece work, power device is fixedly connected with the hollow mounting base on fuselage, is filled at this time in power
Under the pressure effect set, move up the mandril protruded from other than hollow mounting base, the limit for splitting seat is protruded on the top of mandril
In the slot of position, it is fixed on mandril in limit slot, it is not easy to it skids off, prevents from causing connecting portion to loosen due to high-speed rotation,
Cause safety accident.When dental handpiece stops working, after dismantling power device, mandril moves down multiple under the effect of gravity
Position, makes mandril be detached from limit slot, and head and attachment base realize rotatable disassembly, facilitate head, cleaning maintenance head prevents from handing over
Fork infection, and extend the service life of dental handpiece.
Dismountable structure is set, that is, increases and splits seat and the detachable of attachment base and combine, be more convenient for postoperative main portion
The cleaning of part.The detachable connection method for splitting seat and attachment base can be buckle-type in the prior art, partial screw threads
Formula, or such as flowering structure: it is equipped with the limiting stand 21 fastened with fractionation seat, limit as seen in figs. 5-6, at the top of the attachment base
Limit raised line 22 is radially convexly equipped on platform；The downward side for splitting seat is equipped with notch 122 and is connected to notch
Sliding slot 123；When the fractionation seat is fastened on the limiting stand of attachment base, raised line is limited along notch and enters sliding slot, and rotates fractionation
Seat is limited in limit raised line in sliding slot.
In order to improve the intensity for splitting seat, optimization splits the location layout of the limit slot and notch of seat, as further
Preferred embodiment, the limit slot are overlapped with notch, i.e. limit slot is also used as notch.
As shown in figure 5, being not easy to skid off outside sliding slot to make to limit raised line, prevent from leading to connecting portion due to high-speed rotation
It loosens, as further preferred scheme, anti-slip groove 1231 is equipped in the sliding slot.And the design of guiding surface 1232 in order to
When attachment base being enabled to separate with fractionation seat, limit raised line is skidded off along guiding surface to indentation, there, to more successfully be connected to
The top of mandril, makes mandril exit limit slot, and the rotatable disassembly of head is easy to clean.
As further preferred scheme, which further includes reset spring 36, is set on the hollow mounting base outer wall
There is mounting base radial direction boss 321, the spring is inserted on mandril at the top of mandril, and the bottom end of spring is connected to mandril radial direction boss
On, the top of spring is connected on mounting base radial direction boss.When dental handpiece stops working, after dismantling power device, mandril
It resets under the action of the spring, the rotatable disassembly of head is easy to clean.
As further preferred scheme, as Figure 8-9, the head further includes cartridge assemblies 13 and transmission shaft 14；Institute
Stating cartridge assemblies includes fore bearing 131, rear bearing 132, main shaft 133, lock shaft 134, vehicle needle (not shown)；Outside the head
Machine core chamber and transmission axocoel are formed inside shell；The fore bearing, rear bearing, main shaft, that lock shaft is installed in machine core is intracavitary；It is described
It is intracavitary that transmission shaft is mounted on transmission shaft；The fore bearing, rear bearing inner wall be set in the outer surface at main shaft both ends, fore bearing,
The outer wall of rear bearing is close to machine core chamber；The lock shaft wears and is fixed on the inside of main shaft, and machine core is stretched out in one end of lock shaft
Outside chamber；The vehicle needle and lock shaft are sequentially connected；The spindle outer wall be equipped with machine core gear, the machine core gear be located at fore bearing,
Between rear bearing；Described transmission shaft one end is connect with machine core gear drive, and the other end is connect with speed reducer drive.
As further preferred scheme, it is sequentially connected as shown in fig. 7, being equipped at the top of the retarder with transmission shaft bottom end
Teeth 331 are driven, retarder bottom is equipped with the transmission teeth 331 being sequentially connected with power device.
As further preferred scheme, as seen in figs. 8-10, the head further includes preceding seal gasket 135, rear sealant
Pad 136, gasket 137, retaining ring 138；In order to realize the sealing effect of head, by the way that preceding seal gasket, rear seal gasket, pad is arranged
Piece, retaining ring realize double containment, and preventing steam from entering inside machine core causes machine core to get rusty, and extend bearing service life.It is described preceding close
Potting pad inner wall is set on the outer wall of lock shaft, and preceding seal gasket outer wall is close to machine core chamber；Seal gasket inner wall sleeve after described
It is located on the outer wall of main shaft, rear seal gasket outer wall is close to machine core chamber；Before the preceding seal gasket, rear seal gasket are sequentially located at
The outside of bearing, rear bearing；The gasket is arranged between preceding seal gasket and fore bearing；The retaining ring is arranged in rear sealant
Between pad and rear bearing.
Its working environment of the cartridge assemblies of dental handpiece is mostly cavity interior, the use environment is more moist and bacterium compared with
It is more.Therefore higher to the sealing requirements of cartridge assemblies, such as poor sealing, steam or bacterium are easily accessible dental handpiece and work as
In, since dental handpiece needs to reuse, into mobile phone steam and bacterium be easy to make cartridge assemblies generate corrosion or
Bacteria breed is a large amount of, is unfavorable for medical treatment use.The application double containment cartridge assemblies play main seal and act through in machine
Preceding seal gasket, rear seal gasket is arranged in the front and rear sides of core shell body, and preceding seal gasket, rear seal gasket are tight with machine core shell
Patch limit compound action, since fore bearing and the inner ring of rear bearing, outer ring and other component contact position certainly exist gap, currently
Seal gasket and the corresponding compression fore bearing of rear seal gasket and rear bearing, make watery blood that can not enter zero by the gap between bearing
In the cavity formed between part fore bearing, rear bearing and main shaft, prevent the components such as bearing, machine core gear because water, vapour enter and
Generate corrosion.
As further preferred scheme, as shown in figure 11, the outside of the preceding seal gasket is equipped with annular convex platform 1351, institute
It states handpiece case inner wall and is equipped with the limiting slot 111 being adapted to annular convex platform with the preceding seal gasket outer wall place of abutting.Annular convex platform with
Seal gasket is connect even closer with machine core shell before the adapter structure of limiting slot can enable, to improve seal degree.
As further preferred scheme, as shown in figure 12, the longitudinal section of the retaining ring is L-shaped, the rear seal gasket limit
In the L-type slot 1381 of retaining ring.Retaining ring is metal material, and rear seal gasket is contained in L-type slot, and such structure can be with
Seal gasket is connect even closer with metal collar after order, to improve seal degree.
The course of work of the application double containment cartridge assemblies: main shaft is arranged in fore bearing and rear bearing, and vehicle needle is solid
It is scheduled on the lock shaft inside main shaft；At work, main axis is driven using power device, thus rotated with motor-car needle, it is real
Existing Buccodental cleaning treatment or polishing treatment.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of detachable dental handpiece with anti-loose safety device, which is characterized in that including fuselage, attachment base, head；Institute
The top that attachment base is fixed on fuselage is stated, the head is detachably connected on attachment base；
The head includes handpiece case, the fractionation seat for being fixed on handpiece case bottom；The fractionation seat is detachably connected on company
On joint chair；The downward side for splitting seat is equipped with limit slot；
The fuselage includes fuselage cover, hollow mounting base, retarder, mandril；The attachment base is fixed on retarder, is slowed down
Device is fixed in hollow mounting base；The fuselage cover is set in the outer wall of hollow mounting base and retarder；The hollow installation
The lower part of seat is equipped with jack, and the attachment base is equipped with jack；The mandril is equipped with mandril radial direction boss, and the bottom end of mandril is inserted
It in the jack of hollow mounting base, and protrudes from other than hollow mounting base, mandril radial direction boss is connected to above jack, mandril
Top be inserted into the jack of attachment base；When dental handpiece work, power device is fixedly mounted on to the hollow peace of fuselage
It fills on seat, moves up the mandril protruded from other than hollow mounting base, the top of mandril is protruded into the limit slot for splitting seat.
2. detachable dental handpiece as described in claim 1, which is characterized in that be equipped at the top of the attachment base and split seat button
The limiting stand of conjunction is radially convexly equipped with limit raised line on limiting stand；It is described split seat downward side be equipped with notch and with
The sliding slot of notch connection；When the fractionation seat is fastened on the limiting stand of attachment base, raised line is limited along notch and enters sliding slot, and is revolved
Turn to split seat, is limited in limit raised line in sliding slot.
3. detachable dental handpiece as claimed in claim 2, which is characterized in that the limit slot is overlapped with notch.
4. detachable dental handpiece as claimed in claim 2, which is characterized in that be equipped with anti-slip groove in the sliding slot and lead
To inclined-plane.
5. detachable dental handpiece as described in claim 1, which is characterized in that the dental handpiece further includes reset spring, institute
Hollow mounting base outer wall is stated equipped with mounting base radial direction boss, the spring is inserted on mandril at the top of mandril, the bottom end of spring
It is connected on mandril radial direction boss, the top of spring is connected on mounting base radial direction boss.
6. detachable dental handpiece as described in claim 1, which is characterized in that the head further includes cartridge assemblies and transmission
Axis；The cartridge assemblies include fore bearing, rear bearing, main shaft, lock shaft, vehicle needle；Machine core chamber is formed inside the handpiece case
With transmission axocoel；The fore bearing, rear bearing, main shaft, that lock shaft is installed in machine core is intracavitary；The transmission shaft is mounted on transmission
In axocoel；The fore bearing, rear bearing inner wall be set in the outer surface at main shaft both ends, fore bearing, rear bearing outer wall be close to
Machine core chamber；The lock shaft wears and is fixed on the inside of main shaft, and one end of lock shaft is stretched out outside machine core chamber；The vehicle needle and lock
Mandrel transmission connection；The spindle outer wall is equipped with machine core gear, and the machine core gear is between fore bearing, rear bearing；The biography
Moving axis one end is connect with machine core gear drive, and the other end is connect with speed reducer drive.
7. detachable dental handpiece as claimed in claim 6, which is characterized in that be equipped with and transmission shaft bottom at the top of the retarder
The transmission teeth of transmission connection are held, retarder bottom is equipped with the transmission teeth being sequentially connected with power device.
8. detachable dental handpiece as claimed in claim 6, which is characterized in that the head further include preceding seal gasket, after
Seal gasket, gasket, retaining ring；The preceding seal gasket inner wall is set on the outer wall of lock shaft, and preceding seal gasket outer wall is close to
Machine core chamber；Seal gasket inner wall is set on the outer wall of main shaft after described, and rear seal gasket outer wall is close to machine core chamber；It is described preceding close
Potting pad, rear seal gasket are sequentially located at the outside of fore bearing, rear bearing；The gasket is arranged in preceding seal gasket and fore bearing
Between；The retaining ring is arranged between rear seal gasket and rear bearing.
9. detachable dental handpiece as claimed in claim 8, which is characterized in that the outside of the preceding seal gasket is equipped with annular
Boss, the handpiece case inner wall are equipped with the limiting slot being adapted to annular convex platform with the preceding seal gasket outer wall place of abutting.
10. detachable dental handpiece as claimed in claim 8, which is characterized in that the longitudinal section of the retaining ring is L-shaped, described
Seal gasket is limited in the L-type slot of retaining ring afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810988223.1A CN109199609B (en) | 2018-08-28 | 2018-08-28 | Take locking safety device that takes off's can dismantle dental handpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810988223.1A CN109199609B (en) | 2018-08-28 | 2018-08-28 | Take locking safety device that takes off's can dismantle dental handpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109199609A true CN109199609A (en) | 2019-01-15 |
| CN109199609B CN109199609B (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810988223.1A Active CN109199609B (en) | 2018-08-28 | 2018-08-28 | Take locking safety device that takes off's can dismantle dental handpiece |
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| Country | Link |
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| CN (1) | CN109199609B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022016599A1 (en) * | 2020-07-20 | 2022-01-27 | 桂林市啄木鸟医疗器械有限公司 | Curved handpiece used for dental root canal therapy |
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| US5466020A (en) * | 1994-12-30 | 1995-11-14 | Valleylab Inc. | Bayonet connector for surgical handpiece |
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| CN206675601U (en) * | 2016-12-30 | 2017-11-28 | 佛山科学技术学院 | A kind of dismountable plantation mobile phone |
| CN207111698U (en) * | 2017-05-27 | 2018-03-16 | 佛山市彤鑫医疗器材股份有限公司 | A kind of combined bearing and apply its dental handpiece |
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|---|---|---|---|---|
| US2076918A (en) * | 1936-03-20 | 1937-04-13 | George A Robison | Hose coupling |
| EP0525649A1 (en) * | 1991-07-23 | 1993-02-03 | Nakanishi Dental Mfg. Co. Ltd. | Dental handpiece having speed change assembly unit |
| US5466020A (en) * | 1994-12-30 | 1995-11-14 | Valleylab Inc. | Bayonet connector for surgical handpiece |
| CN102784008A (en) * | 2011-05-13 | 2012-11-21 | 株式会社中西 | Dental handpiece |
| CN206675601U (en) * | 2016-12-30 | 2017-11-28 | 佛山科学技术学院 | A kind of dismountable plantation mobile phone |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022016599A1 (en) * | 2020-07-20 | 2022-01-27 | 桂林市啄木鸟医疗器械有限公司 | Curved handpiece used for dental root canal therapy |
| US20220409336A1 (en) * | 2020-07-20 | 2022-12-29 | Guilin Woodpecker Medical Instrument Co., Ltd. | Curved handpiece for dental root canal treatment |
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| Publication number | Publication date |
|---|---|
| CN109199609B (en) | 2021-10-08 |
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