CN211009603U - Bearing mounting structure of dental handpiece - Google Patents
Bearing mounting structure of dental handpiece Download PDFInfo
- Publication number
- CN211009603U CN211009603U CN201921595920.7U CN201921595920U CN211009603U CN 211009603 U CN211009603 U CN 211009603U CN 201921595920 U CN201921595920 U CN 201921595920U CN 211009603 U CN211009603 U CN 211009603U
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- CN
- China
- Prior art keywords
- bearing
- ring
- groove
- noise reduction
- groove body
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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 - Fee Related
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Abstract
The utility model relates to a bearing mounting structure of a dental handpiece, which comprises a shell, a core shaft and a bearing, wherein the core shaft is supported in the shell through the bearing, one end of the core shaft extends out of the shell from one side close to the bearing, a first groove body is arranged in the shell, a second groove body is arranged at the central position of the lower wall of the first groove body, the second groove body is communicated with the first groove body, the joint is a mounting table, a first steel ring is mounted on the mounting table, a first groove is arranged at the bottom end of the side wall of the first groove body, and a noise reduction ring is mounted in the first groove; the upper part of the bearing is placed on the noise reduction ring, the lower part of the bearing penetrates through the inner ring of the noise reduction ring and is positioned in the second groove body, the middle part of the bearing is in close contact with the noise reduction ring, a second steel ring is installed between the noise reduction ring and the bearing, an annular third groove is arranged on the side wall of the inner ring of the second steel ring, springs are fixedly connected to the deepest part of the third groove at equal intervals, and elastic sealing cloth is wrapped on the outer side of the end part of each spring; the utility model discloses simple structure, the simple operation suits to use widely.
Description
Technical Field
The utility model relates to a medical treatment dentistry technical field, more specifically say so and relate to a bearing mounting structure of dental handpiece.
Background
The dental high-speed turbine handpiece mainly comprises a handle and a handpiece connected with the handle, wherein a water inlet pipe, an air inlet pipe and an air return channel are arranged in the handle; the air pipe in the handle generates air flow to drive the wind wheel to rotate at high speed for cutting.
In the constitution of current dental handpiece core, do not do sealed protection between wind wheel and the bearing and handle, the air current that the trachea in the handle produced can blow to the bearing is interior, leads to dental handpiece during operation to produce the abnormal sound, and the noise is big, and the foreign matter that is mingled with in the air current still can accelerate the damage of bearing, and the air current can lead to bearing inside lubricating grease to be blown away the back and accelerate bearing wear and tear damage.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model aims to overcome the defects of the prior art and provides a bearing mounting structure of a dental handpiece.
(II) technical scheme
A bearing mounting structure of a dental handpiece comprises a shell, a core shaft and a bearing, and is characterized in that the core shaft is supported in the shell through the bearing, one end of the core shaft extends out of the shell from one side close to the bearing, a first groove body is arranged in the shell, a second groove body is arranged at the central position of the lower wall of the first groove body, the second groove body is communicated with the first groove body, the joint of the second groove body and the first groove body is a mounting table, a first steel ring is mounted on the mounting table, a first groove is formed in the outer side of the bottom end of the side wall of the first groove body, a noise reduction ring is mounted in the first groove, and the noise reduction ring is made of; the upper portion of the bearing is placed on the noise reduction ring, the lower portion of the bearing penetrates through the inner ring of the noise reduction ring and is located in the second groove body, and the middle portion of the bearing is in close contact with the noise reduction ring.
Furthermore, the noise reduction ring is made of rubber.
Further, the outer diameter of the noise reduction ring is larger than that of the bearing.
Furthermore, the middle part of the side wall of the first groove body is outwards provided with an annular second groove, a damping ring is arranged in the second groove, and the bearing is positioned in an inner ring of the damping ring.
Further, fall and install the second steel ring between circle and the bearing of making an uproar, the second steel ring with fall the pad rigid coupling of making an uproar, be equipped with annular third recess on the lateral wall of second steel ring inner circle, the equidistant rigid coupling of deepest of third recess has the spring, the tip outside parcel of spring has elastic annular sealed cloth, the inner circle rigid coupling of sealed cloth has annular rubber band.
(III) advantageous effects
The utility model provides a bearing mounting structure of dental handpiece, the utility model discloses can obstruct the vibration that produces when work such as core axle and bearing part is rotatory and the path that the noise continues to propagate to the casing along radial through the characteristic of its material through the pad of making an uproar that falls, avoided the power amplifier effect that the metal casing produced the noise, play the effect of making an uproar and steady operation, improve the comfort level when using; in addition, the arrangement of the second steel ring and the sealing cloth prevents adverse effects caused by that airflow generated by an air pipe in the handle can blow towards the inside of the bearing.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only for the purpose of the present invention, protecting some embodiments, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a second steel ring of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
the vibration damping device comprises a machine shell 1, a machine core shaft 2, a bearing 3, a first groove 4, a second groove 5, a mounting table 6, a first groove 7, a first steel ring 8, a noise reduction pad 9, a second steel ring 10, a damping ring 11, a third groove 12, a spring 13, a sealing cloth 14, a rubber band 15 and a second groove 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-2, a bearing mounting structure of a dental handpiece comprises a housing 1, a core shaft 2 and a bearing 3, wherein the core shaft 2 is supported in the housing 1 through the bearing 3, one end of the core shaft 2 extends out of the housing 1 from one side close to the bearing 3, a first tank 4 is arranged in the housing 1, a second tank 5 is arranged at the center of the lower wall of the first tank 4, the second tank 5 is communicated with the first tank 4, a mounting table 6 is arranged at the joint of the second tank 5 and the first tank 4, a first steel ring 8 is mounted on the mounting table 6, a first groove 7 is arranged at the bottom end of the side wall of the first tank 4 to the outside, a noise reduction ring 9 is mounted in the first groove 7, the outer diameter of the noise reduction ring 9 is larger than that of the bearing 3, the noise reduction ring 9 is made; the upper part of the bearing 3 is placed on the noise reduction ring 9, the lower part of the bearing 3 penetrates through the inner ring of the noise reduction ring 9 and is positioned in the second groove body 5, and the middle part of the bearing 3 is in close contact with the noise reduction ring 9; an annular second groove 16 is formed in the middle of the side wall of the first tank body 4 outwards, a damping ring 11 is installed in the second groove 16, and the bearing 3 is located in the inner ring of the damping ring 11; a second steel ring 10 is installed between the noise reduction ring 9 and the bearing 3, the second steel ring 10 is fixedly connected with the noise reduction pad 9, an annular third groove 12 is formed in the side wall of the inner ring of the second steel ring 10, springs 13 are fixedly connected to the deepest portion of the third groove 12 at equal intervals, elastic annular sealing cloth 14 wraps the outer side of the end portion of each spring 13, and annular rubber bands 15 are fixedly connected to the inner ring of each sealing cloth 14.
The utility model discloses specific theory of operation as follows: the external diameter is greater than 3 external diameters of bearing fall and makes an uproar pad 9, can crowd the outer lane of falling the pad 9 of making an uproar to first recess 7 in the time of the bearing 3 installation, thereby make fall the sealed contact of making an uproar pad 9 and bearing 3, set up of second steel ring 10 place bearing 3 rotate the time with fall the pad 9 friction two damage of making an uproar, promote rubber band 15 and the bearing 3 in close contact with of sealed cloth 14 inner circle through spring 13, reach sealed effect, the vibrations that take place when damping ring 11 sets up and has reduced bearing 3 and rotate.
In the description herein, references to the description of the terms "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A bearing mounting structure of a dental handpiece comprises a shell, a core shaft and a bearing, and is characterized in that the core shaft is supported in the shell through the bearing, one end of the core shaft extends out of the shell from one side close to the bearing, a first groove body is arranged in the shell, a second groove body is arranged at the central position of the lower wall of the first groove body, the second groove body is communicated with the first groove body, the joint of the second groove body and the first groove body is a mounting table, a first steel ring is mounted on the mounting table, a first groove is formed in the outer side of the bottom end of the side wall of the first groove body, a noise reduction ring is mounted in the first groove, and the noise reduction ring is made of; the upper portion of the bearing is placed on the noise reduction ring, the lower portion of the bearing penetrates through the inner ring of the noise reduction ring and is located in the second groove body, and the middle portion of the bearing is in close contact with the noise reduction ring.
2. A dental handpiece bearing mounting structure according to claim 1, wherein the noise reduction ring is made of a rubber material.
3. A bearing mounting structure for a dental handpiece according to claim 1, wherein an outer diameter of the noise reduction ring is larger than an outer diameter of the bearing.
4. A dental handpiece bearing mounting structure according to claim 1, wherein a second groove of an annular shape is provided outwardly in a middle portion of the first tank side wall, a damper ring is fitted in the second groove, and the bearing is provided in an inner ring of the damper ring.
5. The structure of claim 1, wherein a second steel ring is installed between the noise reduction ring and the bearing, the second steel ring is fixedly connected to the noise reduction pad, an annular third groove is formed in a side wall of the inner ring of the second steel ring, a spring is fixedly connected to the deepest part of the third groove at an equal interval, an elastic annular sealing cloth is wrapped around an outer side of an end part of the spring, and an annular rubber band is fixedly connected to an inner ring of the sealing cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921595920.7U CN211009603U (en) | 2019-09-24 | 2019-09-24 | Bearing mounting structure of dental handpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921595920.7U CN211009603U (en) | 2019-09-24 | 2019-09-24 | Bearing mounting structure of dental handpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211009603U true CN211009603U (en) | 2020-07-14 |
Family
ID=71507059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921595920.7U Expired - Fee Related CN211009603U (en) | 2019-09-24 | 2019-09-24 | Bearing mounting structure of dental handpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211009603U (en) |
-
2019
- 2019-09-24 CN CN201921595920.7U patent/CN211009603U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210120 Address after: 518000 10N, Taiyangdao building, 2020 Dongmen South Road, Xinnan community, Nanhu street, Luohu District, Shenzhen City, Guangdong Province Patentee after: Guangdong Yongchun Pharmaceutical Group Co.,Ltd. Address before: 635000 group 6, Yinzi village, Nanyue Town, Da County, Dazhou City, Sichuan Province Patentee before: Wu Mingxing |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200714 Termination date: 20210924 |