CN203074887U - Dental handpiece structure - Google Patents
Dental handpiece structure Download PDFInfo
- Publication number
- CN203074887U CN203074887U CN 201320012786 CN201320012786U CN203074887U CN 203074887 U CN203074887 U CN 203074887U CN 201320012786 CN201320012786 CN 201320012786 CN 201320012786 U CN201320012786 U CN 201320012786U CN 203074887 U CN203074887 U CN 203074887U
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- CN
- China
- Prior art keywords
- driving member
- turbine
- dental handpiece
- turbine blade
- annular groove
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- 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 - Lifetime
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- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 26
- 241000278713 Theora Species 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 230000008676 import Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model relates to a dental handpiece structure. The dental handpiece structure comprises a head part, wherein a turbine chamber is formed in the head part; and a rotor is accommodated in the turbine chamber, the rotor comprises a transmission shaft and a transmission piece constituted by a plurality of turbine blade surfaces, high-pressure gas entering the turbine chamber can push all the turbine blade surfaces to drive the rotor to rotate, upward gaps are respectively formed between the adjacent turbine blade surfaces, a cover body is covered on the turbine chamber, an annular slot is formed between the end surface of the cover body, which faces towards the turbine chamber and the transmission piece, and the annular slot and all the gaps are oppositely arranged, so that the high-pressure gas which is led out through the gaps can be collected, and then the turning power of a dental handpiece can be increased.
Description
Technical field
This utility model is relevant with the structure of dental handpiece, be meant a kind of airflow field interference cases that can effectively improve turbine room inside especially, but and have secondary pulse turbine blade face, and then promote the dental handpiece structure of turning (cutting) power with lifting airflow field efficient.
Background technology
Press, existing dental handpiece, as shown in Figure 6, this dental handpiece includes a head 91, be formed with the turbine room 92 of a tool upward opening in the head 91, and axially be installed with a rotor 93 free to rotate at this turbine room 92, revolve on the opening that locks in this turbine room 92 with a spiral cover 94 correspondences again; Wherein, these rotor 93 ends stretch out and are equipped with a cutter 931, as all types of cutters such as cutter or drill bit of grinding one's teeth in sleep, and has a driving member 932 of forming by plural turbine blade face at the middle section position of this rotor 93, can promote the turbine blade face of this driving member 932 when making gases at high pressure enter this turbine room 92, rotate along its circumferencial direction to drive this rotor 93.
Yet, existing dental handpiece is when reality is used, the gases at high pressure that enter this turbine room 92 are behind the turbine blade face that promotes this driving member 932, to upwards derive towards the breach between each turbine blade face, yet because this spiral cover 94 is plane at the end face towards this turbine room 92, and can not be in order to the design of the whole gases at high pressure of water conservancy diversion remittance, therefore upwards the gases at high pressure of deriving are easily because of the end face that directly collides these spiral cover 94 bottoms run helter-skelter (shown in arrow among the figure), thus, will certainly constitute the airflow fields in this turbine room 92 and disturb, and cause rotational resistance to increase and the shortcoming that causes torsion to descend; Moreover the gas of its turbine room 92 of existing dental handpiece will soon be discharged, and therefore also can't reach to make gases at high pressure secondary pulse turbine blade face, to promote the effect of airflow field work doing efficiency.
The utility model content
One of this utility model purpose is to provide a kind of dental handpiece structure, and it has the effect of the airflow field interference cases that can effectively improve turbine room inside.
Two of this utility model purpose is to provide a kind of dental handpiece structure, but it has secondary pulse turbine blade face with lifting airflow field work doing efficiency, and then promotes the effect of dental handpiece turning (cutting) power.
For achieving the above object, this utility model is taked following technical scheme:
This utility model provides a kind of dental handpiece structure, includes:
One head, its inside is formed with a turbine room, and the top of this turbine room has an opening, and the bottom has a perforation, and be provided with an air inlet and a steam vent at the internal face of this turbine room;
One rotor, be located in this turbine room, this rotor has a power transmission shaft, an and driving member of being located at this power transmission shaft periphery, this driving member in regular turn around rearranging, and enters each turbine blade face that the gases at high pressure of this turbine room can promote this driving member relatively by this air inlet by plural turbine blade face, to drive this rotor rotation, and between each adjacent turbine blade face of this driving member, have a breach towards this opening respectively, the gases at high pressure that promote this driving member must be derived by this breach respectively;
One lid, correspondence is covered on the opening of this turbine room, and this lid between the end face of this turbine room and this driving member, have one along the circumferential direction enclose around annular groove, this annular groove is with this breach respectively and is oppositely arranged, and can compile the gases at high pressure of deriving through this breach respectively.
Preferably, described annular groove with the circumferencial direction circle around being arranged with in described lid on the end face of described turbine room.The bottom surface of described annular groove is concave arc shape.
Further, this driving member is provided with a retaining edge at a relative end ring away from this opening.Have a button on this lid, this button is convexly equipped with towards relative direction away from this annular groove, and the periphery of this button is provided with more than one short slot.
Moreover, this steam vent has a depression section towards this rotor rotation direction extension, and be concaved with one on each turbine blade face of this driving member respectively towards the ora terminalis of this opening and be circular-arc guide groove, and the guide groove on the depression section of this steam vent and each turbine blade face is and is oppositely arranged and same level height on the throne position.
The beneficial effects of the utility model are: this utility model annular groove and each breach are and are oppositely arranged, can effectively improve the airflow field interference cases of turbine room inside, in addition, a part of high pressure gas is known from experience the depression section that is subjected to this steam vent to be concave arc shape and is guided, and be directed in once more via guide groove between each turbine blade face of this driving member, can reach the effect on secondary pulse turbine blade face, can significantly promote this turbine room airflow field work doing efficiency by this, and then promote dental handpiece turning power.
Description of drawings
Fig. 1 is an exploded view of the present utility model.
Fig. 2 is the generalized section after this utility model assembling.
Fig. 3 is a user mode sketch map of the present utility model, in order to show the stream condition when gases at high pressure are squeezed into turbine room.
Fig. 4 is a user mode sketch map of the present utility model, in order to showing when the gases at high pressure that import annular groove, and the stream condition when the rotation direction of rotor flows towards the rear.
Fig. 5 is a user mode sketch map of the present utility model, the stream condition when importing each turbine blade face in order to demonstration once more through guide groove.
Fig. 6 is the structural representation of existing dental handpiece.
The specific embodiment
At first please refer to Fig. 1～2, this utility model provides a kind of dental handpiece structure, and it mainly is made up of a head 11, a rotor 21 and a lid 31, wherein:
This head 11, its inside is formed with a turbine room 12, the top of this turbine room 12 has an opening 121, and the bottom has a perforation 122, and be provided with an air inlet 13 and a steam vent 14 at the internal face of this turbine room 12, and these head 11 rear ends are outward extended with a grip part 15 that can grip for staff.
This rotor 21, opening 121 through this turbine room 11 axially is located in this turbine room 12, this rotor 21 has a power transmission shaft 22 and a driving member 23, this power transmission shaft 22 is terminal to be provided with one for group and to pass this perforation 122 and convexedly stretch in the cutter 221 of these turbine room 12 outsides, this cutter 221 can be all types of grind one's teeth in sleep cutter or drill bit, and this driving member 23 is made of around being arranged in these rotor 21 peripheries in regular turn plural turbine blade face 231, be socketed with a bearing 24 up and down respectively at this driving member 23 in addition, and this driving member 23 is equipped with a retaining edge 232 in relative bottom away from this opening 121, and between these driving member 23 each adjacent turbine blade faces 231, has a breach 25 towards this opening 121 respectively, and enter each turbine blade face 231 that the gases at high pressure of this turbine room 12 can promote this driving member 23 relatively by this air inlet 13, rotate to drive this rotor 21, and be concaved with one on each turbine blade face 231 of this driving member 23 respectively towards the ora terminalis of this opening 121 and be circular-arc guide groove 233, and this steam vent 14 has a depression section 141 of extending towards this rotor 21 rotation directions, and the depression section 141 of this steam vent 14 be with each turbine blade face 231 on guide groove 233 be oppositely arranged and the position in same level height position.
This lid 31, correspondence is covered on the opening 121 of this turbine room 12, and this lid 31 between the end face of this turbine room 12 and this driving member 23, have one along the circumferential direction enclose around annular groove 32, and this annular groove 32 is with this breach 25 respectively and is oppositely arranged, and can compile the gases at high pressure of deriving through this breach 25 respectively.In the present embodiment, this annular groove 32 with the circumferencial direction circle around being arranged with in this lid 31 on the end face of this turbine room 12, and the bottom surface of this annular groove 32 is concave arc shape, and on this lid 31, has a button 33, be folded with an elastic component 34 between this button 33 and this lid 31, this button 33 is convexly equipped with towards relative direction away from this annular groove 32, and offers a plurality of short slot 331 in the periphery of this button 33.
And this utility model of forming by said structure is when reality is used, as shown in Figure 3, when gases at high pressure when this air inlet 13 is squeezed into this turbine room 12, can promote each turbine blade face 231 of this driving member 23 relatively, rotate to drive its cutter 221 of this rotor 21 and interlock, and because these driving member 23 bottoms are subjected to the block of this retaining edge 232, therefore promote the gases at high pressure behind these driving member 23 each turbine blade faces 231, only can take advantage of a situation and upwards derive by the breach 25 on 231 on each adjacent turbine blade face along the perisporium on each turbine blade face 231; Then, the gases at high pressure of deriving through this breach 25 respectively, can be subjected to be annular groove 32 guidings that are oppositely arranged with this breach 25 respectively compiles, and because the bottom surface of this annular groove 32 is circular-arc, and air-flow can be flowed along this annular groove 32 more swimmingly, the phenomenon of running helter-skelter with effective minimizing gases at high pressure, and few gases at high pressure that partly enter in this lid 31 more can discharge via the short slot 331 of this button 33, and more can effectively avoid gases at high pressure to be back to once more in this turbine room 12 by this, interference-free with the airflow field of guaranteeing this turbine room 12.
Then please continue to consult Fig. 4,5, import the gases at high pressure of this annular groove 32, to flow towards the rear along the rotation direction of this rotor 21, its gases at high pressure partly will enter this steam vent 14 is derived, another gases at high pressure (shown in dotted arrow among the figure) partly then can be subjected to this steam vent 14 to be depression section 141 guidings of concave arc shape, and via and this depression section 141 guide grooves 233 in same level height position be directed in once more between each turbine blade face 231 of this driving member 23, can reach the effect on secondary pulse turbine blade face 231, and this utility model is had more significantly to promote this turbine room airflow field work doing efficiency, and then promote the effect of dental handpiece turning (cutting) power.
Claims (7)
1. dental handpiece structure is characterized in that it includes:
One head, its inside is formed with a turbine room, and the top of this turbine room has an opening, and the bottom has a perforation, and be provided with an air inlet and a steam vent at the internal face of this turbine room;
One rotor, be located in this turbine room, this rotor has a power transmission shaft, an and driving member of being located at this power transmission shaft periphery, this driving member in regular turn around rearranging, and enters each turbine blade face that the gases at high pressure of this turbine room can promote this driving member relatively by this air inlet by plural turbine blade face, to drive this rotor rotation, and between each adjacent turbine blade face of this driving member, have a breach towards this opening respectively, the gases at high pressure that promote this driving member must be derived by this breach respectively;
One lid, correspondence is covered on the opening of this turbine room, and this lid between the end face of this turbine room and this driving member, have one along the circumferential direction enclose around annular groove, this annular groove is with this breach respectively and is oppositely arranged, and can compile the gases at high pressure of deriving through this breach respectively.
2. dental handpiece structure as claimed in claim 1 is characterized in that: the bottom surface of described annular groove is concave arc shape.
3. dental handpiece structure as claimed in claim 1 is characterized in that: described annular groove with the circumferencial direction circle around being arranged with in described lid on the end face of described turbine room.
4. dental handpiece structure as claimed in claim 3 is characterized in that: the bottom surface of described annular groove is concave arc shape.
5. dental handpiece structure as claimed in claim 1 is characterized in that: described driving member is provided with a retaining edge at a relative end ring away from described opening.
6. dental handpiece structure as claimed in claim 1 is characterized in that: have a button on the described lid, this button is convexly equipped with towards relative direction away from described annular groove, and is provided with more than one short slot in the periphery of this button.
7. dental handpiece structure as claimed in claim 1, it is characterized in that: described steam vent has a depression section towards described rotor rotation direction extension, and be concaved with one on each turbine blade face of described driving member respectively towards the ora terminalis of described opening and be circular-arc guide groove, and the guide groove on the depression section of described steam vent and each turbine blade face be oppositely arranged and the position in same level height position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320012786 CN203074887U (en) | 2013-01-10 | 2013-01-10 | Dental handpiece structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320012786 CN203074887U (en) | 2013-01-10 | 2013-01-10 | Dental handpiece structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203074887U true CN203074887U (en) | 2013-07-24 |
Family
ID=48820776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320012786 Expired - Lifetime CN203074887U (en) | 2013-01-10 | 2013-01-10 | Dental handpiece structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203074887U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020116371A (en) * | 2019-09-16 | 2020-08-06 | 株式会社ナカニシ | Dental turbine handpiece |
-
2013
- 2013-01-10 CN CN 201320012786 patent/CN203074887U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020116371A (en) * | 2019-09-16 | 2020-08-06 | 株式会社ナカニシ | Dental turbine handpiece |
| JP7225065B2 (en) | 2019-09-16 | 2023-02-20 | 株式会社ナカニシ | dental turbine handpiece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |