CN2820122Y - Disposable dental drill hand unit - Google Patents

Disposable dental drill hand unit Download PDF

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Publication number
CN2820122Y
CN2820122Y CN 200520024372 CN200520024372U CN2820122Y CN 2820122 Y CN2820122 Y CN 2820122Y CN 200520024372 CN200520024372 CN 200520024372 CN 200520024372 U CN200520024372 U CN 200520024372U CN 2820122 Y CN2820122 Y CN 2820122Y
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CN
China
Prior art keywords
impeller
dental drill
head
disposable use
bearing
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Expired - Fee Related
Application number
CN 200520024372
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Chinese (zh)
Inventor
孙桂芝
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Individual
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Individual
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Publication date
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Priority to CN 200520024372 priority Critical patent/CN2820122Y/en
Application granted granted Critical
Publication of CN2820122Y publication Critical patent/CN2820122Y/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a special dental medical appliance, particularly a disposable dental drill hand unit. The inner sides of the cover part and the mouth part of a front head housing of the dental drill hand unit are respectively provided with bearing horizontal sockets, and a rotor composed of a bearing and an impeller is installed in the front head housing through the horizontal sockets. Median septa are arranged among blades of the impeller, and with the median septa as mirror surfaces, upper parts and lower parts are mutually in a mirror image type. A shaft neck of the impeller is in the shape of a gear, and a plurality of longitudinal gear racks are arranged on the shaft neck to form column exhaust channels along the shaft direction of the impeller. A high pressure air channel, a water channel, an air return channel and a water vapor back sucking channel which are communicated with the inner part of the front head housing are respectively arranged in the front head neck, and in a pulling and inserting mode, the vehicle needle is installed in an insertion pipe installed at the center of the impeller shaft. The utility model has the structure that a plurality of assemblies are installed in an inserting mode, so that the injection molding technology with low cost can be adopted for manufacture. As a result, the cost is reduced, and the one-time usage of the dental drill hand unit becomes possible. A front head of the dental drill hand unit has universality and can be matched with present dental drill hand units with various interfaces in accordance with practical conditions.

Description

Disposable use dental drill
Technical field:
This utility model relates to the special-purpose medical apparatus and instruments of dentistry, specifically a kind of disposable use dental drill.
Background technology:
At present, dental examination and treat little apparatus and can accomplish disposable use.But, because the dental drill of tooth body disease such as treatment dental caries etc. is relatively more expensive, thus state, inside and outside does not still have supply disposable dental drill appearance.And, in many oral medicals mechanism, because it costs an arm and a leg, generally purchase limited amount, need purchase special-purpose sterilizing equipment decontaminating apparatus in addition, thus often can not guarantee to accomplish " one suffers from a machine ", therefore, exist not strict, the disinfectant phenomenon not even of sterilization, so there is the probability of infectious disease cross infections such as very big acquired immune deficiency syndrome (AIDS), infectious hepatitis.
Summary of the invention:
Goal of the invention of the present utility model aims to provide a kind of disposable use dental drill; to exempt loaded down with trivial details disinfectant program and the expensive special-purpose sterilizing equipment decontaminating apparatus of user; guarantee the medical prevention protected mode of " suffers from a machine ", and then stop up infectious disease such as acquired immune deficiency syndrome (AIDS), infectious hepatitis and treat infectious potential path through the oral cavity.
The technical scheme that realizes the foregoing invention purpose is: this dental drill comprises head shell portion, head cap portion, head umbo portion, cervix handpiece, bearing, impeller, handle, high pressure air flue, water channel, the inboard of this head cap portion and head umbo portion is respectively arranged with bearing nest for sleeping in, and the rotor of being made up of bearing and impeller is loaded in the head shell by this nest for sleeping in; In being provided with between the blade of this impeller every, with in be divided into minute surface, mirror type each other up and down, the axle journal of impeller is a gear-like, design has several longitudinal rack on it, and constitute impeller shaft to the stringer drain tank; Be respectively arranged with in this head neck with the head shell in the high pressure air flue, water channel, air-return duct, the steam resorption road that are communicated with; This car pin is loaded in the intubate at impeller shaft center by the plug mode.
According to the disposable use dental drill that this case realizes, its structure is that the multicompartment grafting is installed, and therefore can adopt cheap injection molding technology manufacturing, thereby greatly reduce cost, and make dental drill " disposable use " become possibility; And this dental drill head has versatility, but treatment in accordance with local conditions adapt to the dental drill of existing various interface, as 1 hole, 2 holes, 3 holes, 4 holes, 6 holes etc.
Description of drawings:
Fig. 1 is a universal extrusion tooling of the present utility model vertical section sketch map.
Fig. 2 is impeller of the present utility model (tabular blade) structural representation.
Fig. 3 is impeller of the present utility model (circular-arc blade) structural representation.
Fig. 4 is the vertical section sketch map of impeller of the present utility model and the synthetic rotor of bearing group.
Fig. 5 is a special needle loading and unloading device structural representation of the present utility model.
Fig. 6 is a special needle loading and unloading device dress pin operation chart of the present utility model.
Fig. 7 unloads the pin operation chart for special needle loading and unloading device of the present utility model.
But Fig. 8 is this utility model air return type two hole dental drill generalized sections.
Fig. 9 is not air return type two hole dental drill generalized sections of this utility model.
But Figure 10 is this utility model air return type four hole dental drill generalized sections.
Figure 11 is not air return type four hole dental drill generalized sections of this utility model.
The specific embodiment:
Provide specific embodiment of the utility model below in conjunction with accompanying drawing.
Its universal extrusion tooling part of disposable use dental drill described in the utility model is made up of head shell portion 1, bearing 2, head cap portion 3, last tap 4, cervix handpiece 5, water channel 6, high pressure air flue 7, air-return duct 8, steam resorption road 9, head umbo portion 10, secondary tap 11, stringer drain tank 12, center intubate 13, bearing nest 14 for sleeping in, impeller 15, the inboard of this head cap portion 3 and head umbo portion 10 is respectively arranged with bearing nest 14 for sleeping in, and the rotor of being made up of bearing 2 and impeller 15 is loaded in the head shell by this nest 14 for sleeping in; During 16 of impeller blades are provided with every 17, with in every 17 being minute surface, mirror type each other up and down; The axle journal 18 of impeller 15 is a gear-like, and design has several longitudinal rack on it, and constitute impeller shaft to stringer drain tank 12.Impeller 15 its blades 16 in the present embodiment are tabular or circular-arc; Be wedge shape or streamlined every 17 windward side in the impeller; Head cap portion 3 is provided with tap 4, and head umbo portion 10 is provided with secondary tap 11.Be respectively arranged with in this head neck 5 of universal extrusion tooling part with the head shell in the high pressure air flue 7, water channel 6, air-return duct 8, the steam resorption road 9 that are communicated with; 15 centers of impeller are provided with center intubate 13, and the car pin is loaded in the impeller shaft center intubate 13 by the plug mode.
The universal extrusion tooling operation principle:
High pressure draught impacts in the impeller of mirror type impeller 15 on 17 in high pressure air flue 7 enters the head shell.Because be designed to wedge shape or streamlined every 17 windward side in the impeller, high pressure draught is divided into two strands of air-flows immediately at this, thus flow-disturbing can be reduced to greatest extent and to injecting the retroaction of high pressure draught, thus reduce energy dissipation, the effect of raising high pressure draught.
Mirror type impeller 15 and pair of bearings 2 constitute the rotor of this case, the water under high pressure steam flow efficiently does work in the head shell in order to make, Rational flow, design has several longitudinal rack on the gear-like axle journal 18, and constituting several stringer drain tank 12 on the impeller shaft, this stringer drain tank 12 constitutes flowing and passing away of water under high pressure steam flow with the raceway of bearing 2 and the gap of each parts.
Because of the disposable use dental drill that this programme system takes Shooting Technique to make, the lubricated and cooling of parts is just especially important.For this reason, this programme in water channel 6 directly enters the head shell, the bearing 2, the mirror type impeller 15 that run up are lowered the temperature and lubricate, also makes the disposable use car needle section of high-speed cutting lower the temperature simultaneously clean water.
The mode of plug is taked in the loading and unloading of car pin in this programme, for guarding against cross infection disposable use special needle loading and unloading device of a disposable use dental drill random arrangement.This loading and unloading device by body 20, the dress pin hole 19, unload pin vertebra 21, locating hole 22 constitutes.During the entrucking pin, hold loading and unloading body portion 20 (can be made into different shape), disposable use car shank portion 23 parts are inserted in the impeller center intubate 13, then disposable use car needle section 24 is inserted in the car pin locating hole 22 through dress pin hole 19, press shown in the arrow among Fig. 6, taking advantage of a situation presses, and then the car pin can be in place smoothly.Owing to the undergauge that exists in the impeller center intubate 13, can guarantee that the car pin can excessively not insert.When unloading pin, with the last tap that unloads pin vertebra 21 slave head capsule caps 34 insertions of loading and unloading device, press shown in the arrow among Fig. 7, impose thrust, the car pin can unload smoothly.
Below provide the concrete scheme that above-mentioned universal extrusion tooling adapts to existing 2 holes, 4 hole interface dental drills.
Embodiment 1:[Fig. 8] but air return type two hole dental drills
These hand set handle 25 its ends are equipped with and can be connected 26 with air feed in the main frame, speed that water system is connected, be provided with in it with universal extrusion tooling in high pressure air flue 7, breather 2 and the water service pipe 28 that water channel 6 is connected.High pressure draught, clean water form high-pressure water vapor and flow in the head shell through amphithyrid dental drill speed connection 26, more respectively through breather 27, water service pipe 28 and water channel 6, high pressure air flue 7, and the rotor that promotes mirror type impeller 15 and bearing 2 combinations carries out work.Part high-pressure water vapor after the acting flow through air-return duct 8, and mobile phone handle 25 in space 29, connect 26 recovery systems that are recycled in the main frame through speed again.The second portion high-pressure water vapor is discharged the head shell through the last tap 4 of head cap portion 3.The third part high-pressure water vapor, stringer drain tank 12 on the impeller shaft through being positioned at head umbo portion 10 and secondary tap 11 are discharged the head shell, and take advantage of a situation the disposable use car needle section 24 of high-speed cutting is lowered the temperature, afterwards, advance mobile phone handle 25 internal pores 29 through steam resorption road 9 resorptions, connect 26 recovery systems that are recycled in the main frame through speed again.
Embodiment 2:[figure-9] air return type two hole dental drills not
But this machine is identical with air return type two hole dental drill structures, only when universal extrusion tooling is made in injection moulding, with air- return duct 8,9 usefulness pipe plugging things, 30 shutoff of steam resorption road.Like this, with regard to there not being the resorption problem of high-pressure water vapor, may more help avoiding cross infection.
Embodiment 3:[figure-10] but air return type four hole dental drills
But this machine is compared with air return type two hole dental drills, has set up suction pipe 31 in its mobile phone handle 25.The speed that high pressure draught, clean water are handled drive end unit connects 26, the water channel in breather 27, water service pipe 28 and universal extrusion tooling 6, high pressure air flue 7 respectively again, form high-pressure water vapor and flow in the head shell, promote mirror type impeller 15 and carry out work with the rotor that bearing 2 makes up.Part high-pressure water vapor after the acting flow through air-return duct 8, and mobile phone handle 25 in space 29, connect 26 recovery systems that are recycled in the main frame through speed again.The second portion high-pressure water vapor is discharged the head shell through the last tap 4 of head cap portion 3.The third part high-pressure water vapor, stringer drain tank 12 on the impeller shaft through being positioned at head umbo portion 10 and secondary tap 11 are discharged the head shell, and take advantage of a situation the disposable use car needle section 24 of high-speed cutting is lowered the temperature, afterwards, through steam resorption road 9, suction pipe 31, be recycled to the recovery system in the main frame.
Embodiment 4:[figure-11] air return type four hole dental drills not
This machine is with air return type two hole dental drill design principles are not the same, only when universal extrusion tooling is made in injection moulding, with air- return duct 8,9 usefulness pipe plugging things, 30 shutoff of steam resorption road.But all the other are identical with air return type four hole dental drill structures.

Claims (5)

1, a kind of disposable use dental drill comprises head shell portion, head cap portion, head umbo portion, cervix handpiece, bearing, impeller, handle, high pressure air flue, water channel, it is characterized in that:
The inboard of a, head cap portion and head umbo portion is respectively arranged with bearing nest for sleeping in, and the rotor of being made up of bearing and impeller is loaded in the head shell by this nest for sleeping in;
In being provided with between the blade of b, impeller every, with in be divided into minute surface, mirror type each other up and down, the axle journal of impeller is a gear-like, design has several longitudinal rack on it, and constitute impeller shaft to the stringer drain tank;
Be respectively arranged with in c, the head neck with the head shell in the high pressure air flue, water channel, air-return duct, the steam resorption road that are communicated with;
D, car pin are loaded in the intubate of impeller shaft center by the plug mode.
2, disposable use dental drill according to claim 1 is characterized in that impeller blade is tabular or circular-arc.
3, disposable use dental drill according to claim 1, it is characterized in that in this impeller every the windward side be wedge shape or streamlined.
4, disposable use dental drill according to claim 1 is characterized in that head cap portion is provided with tap, and head umbo portion is provided with secondary tap.
5, disposable use dental drill according to claim 1 is characterized in that disposing special needle loading and unloading device, this loading and unloading device by body, adorn pin hole, unload the pin vertebra, locating hole constitutes.
CN 200520024372 2005-06-24 2005-06-24 Disposable dental drill hand unit Expired - Fee Related CN2820122Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520024372 CN2820122Y (en) 2005-06-24 2005-06-24 Disposable dental drill hand unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520024372 CN2820122Y (en) 2005-06-24 2005-06-24 Disposable dental drill hand unit

Publications (1)

Publication Number Publication Date
CN2820122Y true CN2820122Y (en) 2006-09-27

Family

ID=37016671

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200520024372 Expired - Fee Related CN2820122Y (en) 2005-06-24 2005-06-24 Disposable dental drill hand unit

Country Status (1)

Country Link
CN (1) CN2820122Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108635066A (en) * 2018-04-30 2018-10-12 海宁市高级技工学校 A kind of electric drilling machine
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
CN111938842A (en) * 2020-08-13 2020-11-17 何勤 Dental handpiece with suck-back prevention function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108635066A (en) * 2018-04-30 2018-10-12 海宁市高级技工学校 A kind of electric drilling machine
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
CN111938842A (en) * 2020-08-13 2020-11-17 何勤 Dental handpiece with suck-back prevention function

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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