CN213346061U - Tooth polishing machine tooth protection bent angle structure with reliable connection of polishing cup - Google Patents
Tooth polishing machine tooth protection bent angle structure with reliable connection of polishing cup Download PDFInfo
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- CN213346061U CN213346061U CN202021438130.0U CN202021438130U CN213346061U CN 213346061 U CN213346061 U CN 213346061U CN 202021438130 U CN202021438130 U CN 202021438130U CN 213346061 U CN213346061 U CN 213346061U
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Abstract
A tooth polishing machine tooth protection bend angle structure with a polishing cup reliably connected is characterized in that a power output shaft is rotatably arranged in a cavity in a shell, and an oblique bevel gear is formed at the front end of the shaft and used for driving a polishing head to rotate; the polishing head comprises a polishing cup and a rotating shaft, the rotating shaft is rotatably arranged at the front end of the chamber, and an oblique bevel gear is formed at the rear end of the rotating shaft and is meshed with the oblique bevel gear of the power output shaft to drive the rotating shaft to rotate through the rotation of the power output shaft; two groups of cross-shaped buckles are arranged at the front end of the rotating shaft and are arranged in parallel at intervals, and hollow-out-shaped clamping holes are formed at the intervals between the two groups of cross-shaped buckles; the rear end of the polishing cup is provided with an assembly opening corresponding to the front end of the rotating shaft, and the shape of the inner cavity of the polishing cup corresponds to the shape of the front end of the rotating shaft, so that the polishing cup is reliably connected with the rotating shaft. The utility model discloses a condition that the axis of rotation front end of its special shape closely cooperates with the assembly mouth of polishing cup, can avoid droing at polishing treatment in-process polishing cup.
Description
Technical Field
The utility model relates to a tooth nursing polishing field, concretely relates to reliable tooth burnishing machine tooth protection bent angle structure is connected to polishing glass.
Background
The tooth polishing machine is mainly applied to prevention and treatment of dental diseases and cleaning and polishing of tooth surfaces (matched with special tooth-preventing ointment), and mainly comprises a treatment head part, namely a tooth-protecting corner (Prophy Angle), and a handheld power part, namely a high-speed dental handpiece.
US 7255559B2 (dispersible dental angle with secure retention mechanism) shows a relatively common Disposable dental bend angle in which a polishing head contacts and acts on the surface of the teeth to provide a tooth cleaning and polishing action. The polishing head consists of a polishing cup (rubber cup) and a fixed shaft, wherein the polishing cup (rubber cup) is fixed on the front end face of the fixed shaft in an injection molding manner, and a base of the fixed shaft is positioned inside a tooth protection bend; the tail end of the fixed shaft base is provided with an oblique bevel gear to form a pair with the oblique bevel gear at the end part of the power output shaft of the tooth polishing machine mobile phone, so that the effect of transmitting the rotating force is achieved. To alleviate wear between the bevel gears and between the stationary shaft and the housing and the fixing member, a lubricant is generally applied to the stationary shaft and the bevel gears. The handheld tooth polishing machine is convenient to use and good in polishing effect, but when the handheld tooth polishing machine is used for a long time, air is discharged from a gap near a treatment head of the polishing machine in the using process, so that the discharge of a lubricant is accelerated; when the mobile phone is closed to work, the negative pressure generated by the rotating turbine can suck external air into the tooth polishing machine at the moment when the mobile phone stops, so that dust in the air or fragments generated by polishing enter the tooth polishing machine to pollute the interior of the tooth polishing machine.
In order to overcome the above problems, the applicant filed patent application No. 201420226349.2 on a tooth protection corner structure of a tooth polishing machine with better sealing performance in 2014. This patent can effectively seal lubricating oil, avoids polluting operational environment, but still finds to have following not enoughly:
among the technical scheme of this patent, the cooperation of its fixed axle front end of polishing head and burnishing cup (rubber cup) rear end is firm inadequately, and the condition that the burnishing cup drops from the fixed axle often takes place easily at the in-process of high-speed rotation, leads to causing the injury to patient in the polishing treatment process.
Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.
Disclosure of Invention
The utility model aims at providing a reliable tooth burnishing machine protects tooth bent angle structure is connected to polishing cup.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a tooth polishing machine tooth protection bend angle structure with a polishing cup reliably connected comprises a shell, wherein a cavity is arranged in the shell, a power output shaft is rotatably arranged in the cavity along the length direction of the cavity, and an oblique bevel gear is formed at the front end of the power output shaft and used for driving a polishing head to rotate;
the polishing head comprises a polishing cup and a rotating shaft which are assembled and combined; the rotating shaft is rotatably arranged at the front end of the chamber along the width direction of the chamber, and the front end of the polishing cup is positioned outside the shell; an oblique bevel gear is formed at the rear end of the rotating shaft and is meshed with the oblique bevel gear of the power output shaft, so that the rotating shaft is driven to rotate through the rotation of the power output shaft;
two groups of cross-shaped buckles are arranged at the front end of the rotating shaft and are arranged in parallel and at intervals along the length direction of the rotating shaft; each group of cross-shaped buckles are convexly provided with a plurality of clamping points towards the width direction of the rotating shaft, and the clamping points are uniformly distributed in a cross shape in the circumferential direction of the rotating shaft; wherein, a hollow-out clamping hole is formed at the interval between the two groups of cross-shaped buckles;
the rear end of the polishing cup is provided with an assembly opening corresponding to the front end of the rotating shaft, the shape of the inner cavity of the assembly opening corresponds to the shapes of the two groups of cross-shaped buckles at the front end of the rotating shaft and the shape of the hollowed-out clamping hole, and when the assembly opening is combined with the buckles at the front end of the rotating shaft, the polishing cup and the rotating shaft are positioned.
The relevant content in the above technical solution is explained as follows:
1. in the above scheme, the rotating shaft of the polishing head is in sealing fit with the front end of the shell through an elastic sealing ring. The elastic sealing ring is used for sealing a gap between the shell and the polishing head, so that lubricating oil in the cavity can be sealed on one hand, and external pollutants are isolated on the other hand, so that the inside of the tooth protecting corner is prevented from being polluted.
2. In the above scheme, the middle part of the shell is provided with an opening which is communicated with the cavity of the shell and is arranged corresponding to the side part of the power output shaft;
the power output shaft is characterized by also comprising an inserting piece which is inserted into the opening and axially limits the power output shaft by a positioning groove of the inserting piece.
The utility model discloses a theory of operation and advantage as follows:
the utility model relates to a tooth polishing machine tooth protection bent angle structure with reliable polishing cup connection.A power output shaft is rotationally arranged in a cavity in a shell, and an oblique bevel gear is formed at the front end of the shaft and used for driving a polishing head to rotate; the polishing head comprises a polishing cup and a rotating shaft, the rotating shaft is rotatably arranged at the front end of the chamber, and an oblique bevel gear is formed at the rear end of the rotating shaft and is meshed with the oblique bevel gear of the power output shaft to drive the rotating shaft to rotate through the rotation of the power output shaft; two groups of cross-shaped buckles are arranged at the front end of the rotating shaft and are arranged in parallel at intervals, and hollow-out-shaped clamping holes are formed at the intervals between the two groups of cross-shaped buckles; the rear end of the polishing cup is provided with an assembly opening corresponding to the front end of the rotating shaft, and the shape of the inner cavity of the polishing cup corresponds to the shape of the front end of the rotating shaft, so that when the assembly opening is buckled and combined with the front end of the rotating shaft, the polishing cup and the rotating shaft are positioned.
Compared with the prior art, the utility model discloses a rotation axis front end of its special shape closely cooperates with the assembly opening of burnishing cup, can avoid the condition that the burnishing cup drops in the polishing treatment process.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 2 is a perspective view of a housing according to an embodiment of the present invention;
fig. 3 is a front view of a housing according to an embodiment of the present invention;
FIG. 4 is a schematic sectional view taken along line A-A of FIG. 3;
FIG. 5 is a schematic structural view of a power output shaft according to an embodiment of the present invention;
FIG. 6 is a schematic front end view of a prophy angle according to an embodiment of the present invention;
FIG. 7 is a perspective view of a prophy angle according to an embodiment of the present invention;
FIG. 8 is a perspective view of a rotating shaft according to an embodiment of the present invention;
FIG. 9 is a schematic front end view of a rotating shaft according to an embodiment of the present invention;
fig. 10 is a first side view of a rotating shaft according to an embodiment of the present invention;
FIG. 11 is a schematic cross-sectional view of the polishing head at an angle corresponding to FIG. 10;
fig. 12 is a second side view of the rotating shaft according to the embodiment of the present invention;
FIG. 13 is a schematic cross-sectional view of the polishing head corresponding to the angle of FIG. 12;
FIG. 14 is a perspective view of an insert according to an embodiment of the present invention;
fig. 15 is a bottom view of the insert of the embodiment of the present invention.
In the above drawings: 1. a housing; 2. a chamber; 3. a power take-off shaft; 4 a. skew bevel gear; 4 b. skew bevel gears; 5. a polishing cup; 6. a rotating shaft; 7. a cross-shaped buckle; 8. sticking points; 9. hollow-out clamping holes; 10. an assembly port; 11. an elastic sealing ring; 12. an opening; 13. inserting sheets; 14. and (6) positioning a groove.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
example (b): the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure may be shown and described, and which, when modified and varied by the techniques taught herein, can be made by those skilled in the art without departing from the spirit and scope of the disclosure.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms "a", "an", "the" and "the", as used herein, also include the plural forms.
As used herein, "connected" or "positioned" refers to two or more elements or devices being in direct physical contact with each other or in indirect physical contact with each other, and may also refer to two or more elements or devices being in operation or acting on each other.
As used herein, the terms "comprising," "including," "having," and the like are open-ended terms that mean including, but not limited to.
As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain words used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.
The terms "front" and "rear" used herein are directional terms, and are used only for describing the positional relationship between the structures, and are not intended to limit the protection schemes and the actual implementation directions.
Referring to fig. 1 to 15, a tooth protecting corner structure of a tooth polishing machine with a reliably connected polishing cup comprises a housing 1, a cavity 2 is arranged inside the housing 1, a power output shaft 3 is rotatably arranged in the cavity 2 along the length direction of the cavity, and an oblique bevel gear 4a is formed at the front end of the power output shaft 3 and used for driving a polishing head to rotate.
The polishing head comprises a polishing cup 5 and a rotating shaft 6 which are assembled and combined; thermoplastic elastomer materials may be used. The rotating shaft 6 is rotatably arranged at the front end of the chamber 2 along the width direction of the chamber 2, and the front end of the polishing cup 5 is positioned outside the housing 1; the rear end of the rotating shaft 6 is formed with an oblique bevel gear 4b, and is engaged with the oblique bevel gear 4a of the power output shaft 3, so that the rotating shaft 6 is driven to rotate by the rotation of the power output shaft 3.
Two groups of cross-shaped buckles 7 are arranged at the front end of the rotating shaft 6, and the two groups of cross-shaped buckles 7 are arranged in parallel and at intervals along the length direction of the rotating shaft 6; each group of cross-shaped buckles 7 is convexly provided with a plurality of clamping points 8 towards the width direction of the rotating shaft 6, and each clamping point 8 is uniformly distributed in a cross shape in the circumferential direction of the rotating shaft 6; wherein, the interval between two sets of cross buckles 7 is formed with fretwork form card hole 9.
The rear end of the polishing cup 5 is provided with an assembly opening 10 corresponding to the front end of the rotating shaft 6, the shape of the inner cavity of the assembly opening 10 corresponds to the shapes of the two groups of cross-shaped buckles 7 at the front end of the rotating shaft 6 and the shape of the hollowed-out clamping holes 9, and when the assembly opening 10 is combined with the front end of the rotating shaft 6 in a clamping mode, the polishing cup 5 and the rotating shaft 6 are located.
Wherein the rotating shaft 6 of the polishing head is in sealing fit with the front end of the housing 1 through an elastic sealing ring 11. The elastic sealing ring 11 seals the gap between the housing 1 and the polishing head, on one hand, lubricating oil inside the chamber 2 can be sealed, and on the other hand, external pollutants are isolated, so that the inside of the tooth protecting corner is prevented from being polluted.
Wherein, the middle part of the shell 1 is provided with an opening 12, the opening 12 is communicated with the chamber 2 of the shell 1 and is arranged corresponding to the side part of the power output shaft 3; the power output shaft device further comprises a plug-in piece 13, wherein the plug-in piece 13 is inserted into the opening 12, and the positioning groove 14 of the plug-in piece 13 is used for limiting the power output shaft 3 in the axial direction.
Compared with the prior art, the utility model discloses a rotation axis front end of its special shape closely cooperates with the assembly opening of burnishing cup, can avoid the condition that the burnishing cup drops in the polishing treatment process.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (3)
1. A tooth polishing machine tooth protection bend angle structure with a polishing cup reliably connected comprises a shell, wherein a cavity is arranged in the shell, a power output shaft is rotatably arranged in the cavity along the length direction of the cavity, and an oblique bevel gear is formed at the front end of the power output shaft and used for driving a polishing head to rotate;
the polishing head comprises a polishing cup and a rotating shaft which are assembled and combined; the rotating shaft is rotatably arranged at the front end of the chamber along the width direction of the chamber, and the front end of the polishing cup is positioned outside the shell; an oblique bevel gear is formed at the rear end of the rotating shaft and is meshed with the oblique bevel gear of the power output shaft, so that the rotating shaft is driven to rotate through the rotation of the power output shaft; the method is characterized in that:
two groups of cross-shaped buckles are arranged at the front end of the rotating shaft and are arranged in parallel and at intervals along the length direction of the rotating shaft; each group of cross-shaped buckles are convexly provided with a plurality of clamping points towards the width direction of the rotating shaft, and the clamping points are uniformly distributed in a cross shape in the circumferential direction of the rotating shaft; wherein, a hollow-out clamping hole is formed at the interval between the two groups of cross-shaped buckles;
the rear end of the polishing cup is provided with an assembly opening corresponding to the front end of the rotating shaft, the shape of the inner cavity of the assembly opening corresponds to the shapes of the two groups of cross-shaped buckles at the front end of the rotating shaft and the shape of the hollowed-out clamping hole, and when the assembly opening is combined with the buckles at the front end of the rotating shaft, the polishing cup and the rotating shaft are positioned.
2. A dental protection corner structure according to claim 1, wherein: the rotating shaft of the polishing head is in sealing fit with the front end of the shell through an elastic sealing ring.
3. A dental protection corner structure according to claim 1, wherein: the middle part of the shell is provided with an opening which is communicated with the cavity of the shell and is arranged corresponding to the side part of the power output shaft;
the power output shaft is characterized by also comprising an inserting piece which is inserted into the opening and axially limits the power output shaft by a positioning groove of the inserting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021438130.0U CN213346061U (en) | 2020-07-20 | 2020-07-20 | Tooth polishing machine tooth protection bent angle structure with reliable connection of polishing cup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021438130.0U CN213346061U (en) | 2020-07-20 | 2020-07-20 | Tooth polishing machine tooth protection bent angle structure with reliable connection of polishing cup |
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| Publication Number | Publication Date |
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| CN213346061U true CN213346061U (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021438130.0U Active CN213346061U (en) | 2020-07-20 | 2020-07-20 | Tooth polishing machine tooth protection bent angle structure with reliable connection of polishing cup |
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| CN (1) | CN213346061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023124031A1 (en) * | 2021-12-29 | 2023-07-06 | 谭锦辉 | Dental polishing prophy angle |
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2020
- 2020-07-20 CN CN202021438130.0U patent/CN213346061U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023124031A1 (en) * | 2021-12-29 | 2023-07-06 | 谭锦辉 | Dental polishing prophy angle |
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