CN2592133Y - High-speed dental handpiece - Google Patents
High-speed dental handpiece Download PDFInfo
- Publication number
- CN2592133Y CN2592133Y CN 02280273 CN02280273U CN2592133Y CN 2592133 Y CN2592133 Y CN 2592133Y CN 02280273 CN02280273 CN 02280273 CN 02280273 U CN02280273 U CN 02280273U CN 2592133 Y CN2592133 Y CN 2592133Y
- Authority
- CN
- China
- Prior art keywords
- head
- handle
- rotating mechanism
- high speed
- housing
- 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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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model provides a high-speed dental handpiece. The utility model comprises a handgrip and a head which are connected into integration, wherein, the inner part of the handgrip is respectively provided with an air inlet pipe, an air return pipe, an air spraying pipe and a water spraying pipe; the inner part of a shell body of the head is provided with a rotary mechanism and a drill needle which is connected with the rotary mechanism. The utility model is characterized in that the inner part of the handgrip is provided with a cavity, and the air inlet pipe, the air return pipe, the air spraying pipe and the water spraying pipe respectively use the independent pipe to penetrate through the cavity in the handgrip and be connected and communicated with the head. The inner part of the shell body of the head is provided with two support end covers, and the inner wall of the support end cover is provided with a circle of grooves; the inner part of the groove is embedded with a non-skid sealing ring. A spring stop ring is embedded between the shell body of the head and the upper support end cover. The high-speed dental handpiece of the utility model has the advantages of compact structure, firm connection, good tightness, and safety and stability.
Description
Technical field
This utility model relates to a kind of type medical instrument for dental use, relates in particular to a kind of high speed engine head.
Background technology
High speed pneumatic dental drill (being commonly called as turbine hand machine) is a medical apparatus and instruments indispensable in the dental treatment, its operation principle is to provide pressure air by air pump, behind oil sprayer or water mist device, in sending into the head of turbine hand machine, pipeline blows turbine, turbine drives car pin (being drill bit) rotation, implements the dental care operation.Other has sparge pipe and air jet pipe to spray in the patient oral cavity from the head front end by intracavity of handle, plays flushing and cooling effect.
China's patent " safety high speed dental engine handpiece ", a kind of high speed engine header structure is provided, its admission line, return-air duct, jet pipe and water pipeline are by constituting at preformed each the tubular groove of the inner walls of handle, though this structure is easy for installation, but cause the tight and gas leakage leakage of each pipeline involution easily, even gas blowby scurries liquid, pollutes and infects mutually.Also have problems in the support of the rotating mechanism in high speed engine head portion in addition, cause the loosening and transfer of bearing outer ring easily.
Summary of the invention
The purpose of this utility model, be to provide a kind of rational in infrastructure, each pipeline can not gone here and there Lou, can avoid the oral cavity to infect mutually and the high speed engine head of stable work in work.
The purpose of this utility model is achieved in that a kind of high speed engine head, comprises the handle and the head that are connected as a single entity; Be respectively equipped with admission line, return-air duct, jet pipe and water pipeline in handle, an end of each pipeline connects with head respectively, and the other end connects the water source respectively and is connected air pump by external-connected port; Be provided with rotating mechanism in the housing of head, and the car pin that is connected with rotating mechanism; This rotating mechanism comprises integrated worm gear and worm-wheel shaft and the pair of bearings that is socketed in the worm-wheel shaft two ends; Provide cavity in the middle of the worm-wheel shaft, the car pin be set, it is characterized in that:
Be provided with cavity in the described handle, the cavity that described admission line, return-air duct, jet pipe and water pipeline adopt pipeline independently to pass in the handle respectively is connected perforation with head;
Be provided with two supports end cap in the housing of described head, this two supports end cap is sealed in the two bearings outside at rotating mechanism two ends, rotating mechanism is supported being positioned in the housing of high speed engine head portion; Respectively be provided with a circle groove at two supports end cap inwalls, in groove, be embedded with anti-skidding sealing ring; Between upper support end cap and housing, be embedded with check ring.
High speed engine head of the present utility model makes it compared with prior art owing to adopted above technical scheme, has following advantage and characteristics:
1, admission line, return-air duct, jet pipe and water pipeline adopt high-temperature resistance plastice pipe or stainless steel tube respectively, pipeline convenient for cleaning; Admission line, return-air duct, jet pipe and water pipeline use high temperature resistant bonding sealant and head bonding respectively, are connected firmly, good airproof performance;
2, in the supports end cap of fixing rotating mechanism, be provided with the anti-skidding sealing ring of making by novel materials, improved the support performance of high-speed bearing, can prevent the bearing outer ring transfer;
3, being embedded with the stainless steel spring back-up ring between upper support end cap and the housing above the high speed engine head portion rotating mechanism, can bear enough axial forces.
Description of drawings
By the description of following examples in conjunction with its accompanying drawing, can further understand the purpose of this utility model, concrete structure characteristics and advantage, wherein, accompanying drawing is:
Fig. 1 is the structural representation of this utility model high speed engine head;
Fig. 2 is the plan structure sketch map of Fig. 1;
Fig. 3 is the local structure for amplifying sketch map of this utility model high speed engine head.
The specific embodiment
See also Fig. 1, Fig. 2 cooperates referring to Fig. 3, and this utility model high speed engine head comprises handle 1, head 2, and handle 1 and head 2 are connected as a single entity, and is provided with fixed cover 11 at the afterbody of handle 1, is provided with bonnet 12 at the tail end of handle 1.Each single-piece of present embodiment adopts special high temperature polymeric materials injection mo(u)lding, and forms through accurate metalworking; Each single-piece adopts high temperature resistant glue bonding when installing, and is connected firmly, good airproof performance.In handle, be provided with cavity 13, in cavity 13, be provided with admission line 3, return-air duct 4, jet pipe 5 and water pipeline 6.Each pipeline of present embodiment adopts high-temperature resistance plastice pipe or stainless-steel pipe, pipeline convenient for cleaning; The one end is used high temperature resistant adhesive sealant and the 2 bonding perforations of high speed engine head portion respectively, is connected firmly, good airproof performance; The external-connected port of the other end by the bonnet 12 of handle 1 and fixed cover 11 stationary positioned at the handle tail end.
Be provided with rotating mechanism 22 in the housing 21 of high speed engine head portion, and the car pin 23 that is connected with rotating mechanism; Rotating mechanism 22 comprises integrated worm gear 221 and worm-wheel shaft 222 and the pair of bearings 223 that is socketed in the worm-wheel shaft two ends, provides cavity 2221 in the middle of the worm-wheel shaft, and car pin 23 is set.
See also Fig. 3, this utility model high speed engine head is provided with two supports end cap 24 in the housing 21 of its head 2, this two supports end cap is sealed in two bearings 223 outsides at rotating mechanism 22 two ends, rotating mechanism 22 supports are positioned in the housing 21 of high speed engine head portion 2, be provided with a circle groove 241 at supports end cap 24 inwalls, in groove 241, be embedded with the anti-skidding sealing ring of making by novel materials 25, improved the support performance of high-speed bearing, can prevent the bearing outer ring transfer.Between the housing 21 of high speed engine head portion 2 and upper support end cap 24, be embedded with check ring 26, can bear enough axial forces.
The turbine of present embodiment high speed engine head adopts aluminium alloy and nonmetal processing, has improved machining accuracy.The turbine wheel shaft of present embodiment high speed engine head and car pin tapered sleeve adopt stainless steel material processing, make the locking of car pin more solid and reliable.
Claims (2)
1, a kind of high speed engine head comprises the handle and the head that are connected as a single entity; Be respectively equipped with admission line, return-air duct, jet pipe and water pipeline in handle, an end of each pipeline connects with head respectively, and the other end connects the water source respectively and is connected air pump by external-connected port; Be provided with rotating mechanism in the housing of head, and the car pin that is connected with rotating mechanism; This rotating mechanism comprises integrated worm gear and worm-wheel shaft and the pair of bearings that is socketed in the worm-wheel shaft two ends; Provide cavity in the middle of the worm-wheel shaft, the car pin be set, it is characterized in that:
Be provided with cavity in the described handle, the cavity that described admission line, return-air duct, jet pipe and water pipeline adopt pipeline independently to pass in the handle respectively is connected perforation with head;
Be provided with two supports end cap in the housing of described head, this two supports end cap is sealed in the two bearings outside at rotating mechanism two ends, rotating mechanism is supported being positioned in the housing of high speed engine head portion; Respectively be provided with a circle groove at two supports end cap inwalls, in groove, be embedded with anti-skidding sealing ring; Between upper support end cap and housing, be embedded with check ring.
2, high speed engine head according to claim 1, it is characterized in that: the afterbody of described handle is provided with fixed cover, the tail end of described handle is provided with bonnet, this bonnet and fixed cover with the external-connected port stationary positioned of described admission line, return-air duct, jet pipe and water pipeline at the handle tail end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02280273 CN2592133Y (en) | 2002-12-06 | 2002-12-06 | High-speed dental handpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02280273 CN2592133Y (en) | 2002-12-06 | 2002-12-06 | High-speed dental handpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2592133Y true CN2592133Y (en) | 2003-12-17 |
Family
ID=33743072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02280273 Expired - Fee Related CN2592133Y (en) | 2002-12-06 | 2002-12-06 | High-speed dental handpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2592133Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110478057A (en) * | 2018-08-08 | 2019-11-22 | 浙江牙可医疗器械有限公司 | Disposable dental handpiece |
| CN110478056A (en) * | 2018-08-08 | 2019-11-22 | 浙江牙可医疗器械有限公司 | A kind of novel dental handset machine head |
-
2002
- 2002-12-06 CN CN 02280273 patent/CN2592133Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110478057A (en) * | 2018-08-08 | 2019-11-22 | 浙江牙可医疗器械有限公司 | Disposable dental handpiece |
| CN110478056A (en) * | 2018-08-08 | 2019-11-22 | 浙江牙可医疗器械有限公司 | A kind of novel dental handset machine head |
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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 |