CN212438895U - Dental handpiece of high-efficient tooth extraction - Google Patents
Dental handpiece of high-efficient tooth extraction Download PDFInfo
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- CN212438895U CN212438895U CN202020495554.4U CN202020495554U CN212438895U CN 212438895 U CN212438895 U CN 212438895U CN 202020495554 U CN202020495554 U CN 202020495554U CN 212438895 U CN212438895 U CN 212438895U
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Abstract
The utility model relates to the technical field of the structure of a dental handpiece, in particular to a dental handpiece for high-efficiency tooth extraction; the machine head comprises a machine head installation cavity, and the machine core assembly is arranged in the machine head installation cavity; the front end of the movement assembly is provided with a needle, the front end of the front shell is connected with the machine head, and the rear end of the front shell is connected with the rear shell; the dental handpiece also comprises a handpiece inner body, and the front shell and the rear shell are sleeved outside the handpiece inner body; the mobile phone inner body comprises a transmission shaft assembly and a shifting fork assembly; the front end of the shifting fork component is provided with a shifting fork head, and the rear end of the shifting fork component is provided with a first gear; the first gear is meshed with the second gear, and the third gear is meshed with the fourth gear; the dental handpiece of the utility model has novel structural design and adopts a mechanical speed-increasing transmission structure; the rotation process can not stop due to cutting resistance.
Description
Technical Field
The utility model relates to a dental handpiece's technical field of structure especially relates to a dental handpiece of high-efficient tooth extraction.
Background
The impacted teeth are also called as dead teeth and are positioned at the rearmost parts of the upper, lower, left and right dental arches; the extraction of the impacted tooth is more difficult than other teeth, the gum covered by the gum needs to be cut, the bone embedded by the bone needs to be removed, the dental crown blocked by the adjacent tooth needs to be split, and the impacted tooth is extracted in a slicing way. Therefore, it takes a long time to extract the impacted tooth. The dental handpieces used for the impacted tooth extraction operation in the market are all high-speed handpieces with pneumatic turbine type fan blades rotating to drive a lathe needle to cut straightly, the lathe needle of the handpiece cannot cut under the condition of resistance, so that the time of the patient for the impacted tooth extraction operation is longer, the labor amount is large, the patient is painful, and the defects exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a mechanical speed-increasing transmission structure with novel structural design; the dental hand piece can not stop running due to cutting resistance in the rotating process.
The utility model adopts the technical proposal that: a dental handpiece for efficient tooth extraction comprises a handpiece, a movement assembly, a front shell and a rear shell, wherein the handpiece comprises a handpiece mounting cavity, and the movement assembly is arranged in the handpiece mounting cavity; the front end of the movement assembly is provided with a needle, the front end of the front shell is connected with the machine head, and the rear end of the front shell is connected with the rear shell; the dental handpiece also comprises a handpiece inner body, and the front shell and the rear shell are sleeved outside the handpiece inner body;
the mobile phone inner body comprises a transmission shaft assembly and a shifting fork assembly; the front end of the shifting fork component is provided with a shifting fork head, and the rear end of the shifting fork component is provided with a first gear; the front end of the transmission shaft assembly is provided with a second gear, the rear end of the transmission shaft assembly is provided with a third gear, and the movement assembly is provided with a fourth gear; the first gear is meshed with the second gear, and the third gear is meshed with the fourth gear;
the shifting fork head rotates under the action of external force, so that the first gear rotates to sequentially drive the second gear, the third gear and the fourth gear to rotate; the fourth gear rotates to drive the sewing needle to rotate.
Further, the shifting fork assembly comprises a shifting fork seat, a transition shaft, a rotating disc and a rotating shaft; the rotating disc comprises a gear disc and a hollow shaft connected with the lower gear disc;
one end of the transition shaft is connected with the shifting fork seat, the other end of the transition shaft is inserted into the hollow shaft, a plurality of saw teeth are arranged on the gear disc, a fifth gear is arranged at the lower end of the rotating shaft and meshed with the saw teeth, and the first gear is positioned at the upper end of the rotating shaft;
the shifting fork head is arranged at the lower end of the shifting fork seat, and the shifting fork head drives the transition shaft to rotate automatically and then drives the rotating disc to rotate after rotating; the sawteeth on the rotating disc drive the fifth gear to rotate, so that the first gear rotates.
Furthermore, a through hole is formed in the peripheral wall of the upper end of the pulling fork seat, a positioning hole is also formed in the lower end of the transition shaft, the position of the positioning hole corresponds to the through hole, and an external connecting piece penetrates through the through hole and then is inserted into the positioning hole, so that the pulling fork seat and the transition shaft synchronously rotate.
Further, bearings are arranged at the two ends of the rotating shaft and close to the first gear and the fifth gear; and bearings are also arranged on the transmission shaft assembly and close to the second gear and the third gear.
Further, the movement assembly comprises a movement transmission cylinder and a movement rotating shaft, and the fourth gear is arranged on the outer side of the lower end of the movement transmission cylinder; the machine core axis of rotation and core transmission section of thick bamboo are hollow structure, the core axis of rotation is followed the opening of the lower extreme of core transmission section of thick bamboo inserts, and fixed mounting is in the core transmission section of thick bamboo, the push type needle axle is still installed to the upper end of core transmission section of thick bamboo, the car needle is followed the opening of the lower extreme of core transmission shaft upwards inserts, fixed mounting is in the push type needle axle.
Furthermore, a movement through hole is formed in the peripheral wall of the upper end of the movement transmission cylinder, a movement positioning hole is formed in the lower end of the movement rotating shaft, the position of the movement positioning hole corresponds to the movement through hole, and an external connecting piece penetrates through the movement through hole and then is inserted into the movement positioning hole, so that the movement transmission shaft and the movement transmission cylinder synchronously rotate.
Further, the machine head comprises a horizontal machine head cylinder and an oblique machine head cylinder, wherein the horizontal machine head cylinder and the oblique machine head cylinder are hollow cylinders and are communicated with the communication port; the horizontal machine head cylinder is provided with a first opening, the upper end of the oblique machine head cylinder is provided with a second opening, and a third opening is arranged at the lower end of the oblique machine head cylinder; and a push type rear cover is arranged on the second opening.
The third gear extends into the horizontal machine head cylinder from the first opening and is arranged at the communication port, the machine core transmission cylinder is arranged in the oblique machine head cylinder, and the fourth gear is also arranged at the communication port; the fourth gear is meshed with the third gear at the communicating port;
the central axis of a horizontal aircraft nose section of thick bamboo and an slant aircraft nose section of thick bamboo is the contained angle setting, the fourth gear with the central axis of third gear is the contained angle setting.
Further, the inner body of the mobile phone also comprises a linkage sleeve, a nut and a steel sleeve; the linkage sleeve is fixedly sleeved on the lower end of the transmission shaft assembly and the periphery of the rotating disc; the nut and the steel sleeve are sleeved outside the transition shaft; an inner cylinder is further arranged in the rear shell, and the shifting fork assembly is arranged in the inner cylinder;
the inner body of the mobile phone further comprises an optical fiber rod, the optical fiber rod comprises a short optical fiber rod and a long optical fiber rod, the short optical fiber rod is installed in the machine head, and the long optical fiber rod is inserted upwards from the lower end of the rear shell.
Further, the lower end of the rear shell is also connected with a bottom shell ring, and a steel ring is arranged between the bottom shell ring and the lower end of the rear shell.
The utility model discloses a dental handpiece for high-efficiency tooth extraction, which comprises a handpiece, a core assembly, a front shell and a rear shell, wherein the handpiece comprises a handpiece installation cavity, and the core assembly is arranged in the handpiece installation cavity; the front end of the movement assembly is provided with a needle, and the inner body of the mobile phone comprises a transmission shaft assembly and a shifting fork assembly; a shifting fork head is arranged at the front end of the shifting fork assembly, and the shifting fork head rotates under the action of external force, so that the first gear rotates to sequentially drive the second gear, the third gear and the fourth gear to rotate; the fourth gear rotates to drive the sewing needle to rotate.
Therefore, the utility model discloses a dental handpiece, the drive ratio before its second gear axle, first gear axle, third gear, second gear, first gear is the acceleration rate, and whole acceleration rate drive mechanism is mechanical transmission formula, rotates the in-process and can not stop to move because of receiving the cutting resistance and change, can rotate the low-speed rotation that becomes the motor and turn the high-speed rotation of needle output to guarantee to have enough big moment of torsion, carry out effectual cutting. Completely meets the cutting requirements of doctors for the impacted tooth extraction, improves the working efficiency, reduces the pain of patients and saves the hospitalization time of both doctors and patients.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of a dental handpiece for efficient tooth extraction according to the present invention;
fig. 2 is a schematic diagram of the blasting structure of the dental handpiece for efficient tooth extraction according to the present invention;
FIG. 3 is a schematic view of the internal structure of the dental handpiece for efficient tooth extraction according to the present invention;
FIG. 4 is a schematic view of the internal structure of a portion of the dental handpiece for efficient tooth extraction according to the present invention;
fig. 5 is a schematic structural view of the movement assembly and the needle of the present invention;
fig. 6 is a schematic structural diagram of the handpiece of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the 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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1 to 6, the structure of the dental handpiece for efficient tooth extraction according to the present invention is schematically illustrated; the utility model discloses a dental handpiece for high-efficiency tooth extraction, which comprises a handpiece 1, a core component 3, a front shell 21 and a rear shell 22, wherein the handpiece 1 comprises a handpiece installation cavity, and the core component 3 is arranged in the handpiece installation cavity; the front end of the movement assembly 3 is provided with a needle 8, the front end of a front shell 21 is connected with the machine head 1, and the rear end of the front shell is connected with a rear shell 22; the dental handpiece also comprises a handpiece inner body, and the front shell 21 and the rear shell 22 are sleeved outside the handpiece inner body;
the inner body of the mobile phone comprises a transmission shaft component 4 and a shifting fork component 5; the front end of the shifting fork component is provided with a shifting fork head 51, and the rear end is provided with a first gear 52; the front end of the transmission shaft assembly 4 is provided with a second gear 41, the rear end is provided with a third gear 42, and the movement assembly 3 is provided with a fourth gear 31; the first gear 52 is meshed with the second gear 41, and the third gear is meshed with the fourth gear 31;
the shifting fork head 51 rotates under the action of external force, so that the first gear 52 rotates to sequentially drive the second gear 41, the third gear 42 and the fourth gear 31 to rotate; the fourth gear 31 rotates to drive the needle 8 to rotate.
In a preferred embodiment, the fork assembly 5 comprises a fork base 501, a transition shaft 502, a rotating disc 503 and a rotating shaft 504; the rotating disc 503 comprises a gear disc 5031 and a hollow shaft 5032 connected with the lower gear disc 5031;
one end of the transition shaft 502 is connected to the fork 501, the other end is inserted into the hollow shaft 5032, the gear disc 5031 is provided with a plurality of saw teeth 5033, the lower end of the rotating shaft 504 is provided with a fifth gear 53, the fifth gear 53 is engaged with the saw teeth 5033, and the first gear 52 is located at the upper end of the rotating shaft 504;
the shifting fork head 51 is arranged at the lower end of the shifting fork seat 501, and after the shifting fork head 51 rotates, the transition shaft 502 is driven to rotate automatically, and then the rotating disc 503 is driven to rotate; the saw teeth 5033 of the rotating disc 503 rotate the fifth gear 53, so that the first gear 52 rotates.
Be equipped with on the upper end perisporium of pulling fork seat 501 and perforate 5011, the lower extreme of transition axle 502 also is equipped with the locating hole, the position of locating hole corresponds to perforate 5011 passes external connection spare behind the perforation 5011, insert in the locating hole, make pull fork seat 501 and transition axle 502 synchronous revolution, what need explain, the utility model discloses in, the design of gear also can set up to tooth's socket structure, can drive the rotation can.
In order to facilitate the rotation of the rotating shaft, bearings 505 are arranged at two ends of the rotating shaft 504 and close to the first gear 52 and the fifth gear 53; the transmission shaft assembly 4 is also provided with a bearing 505 at a position close to the second gear 41 and the third gear 42.
In the utility model, the movement assembly 3 comprises a movement transmission cylinder 301 and a movement rotating shaft 302, and the fourth gear 31 is arranged at the outer side of the lower end of the movement transmission cylinder 301; movement axis of rotation 302 and movement transmission barrel 301 are hollow structure, movement axis of rotation 302 follows the opening of the lower extreme of movement transmission barrel 301 inserts, fixed mounting be in the movement transmission barrel 301, push type needle axle is still installed to the upper end of movement transmission barrel 301, car needle 8 follows the opening of the lower extreme of movement transmission shaft 302 upwards inserts, fixed mounting is in the push type needle axle, consequently, it is also very convenient, change the car needle easily.
A movement through hole 3011 is formed in the peripheral wall of the upper end of the movement transmission barrel 301, a movement positioning hole is formed in the lower end of the movement rotating shaft 302, the position of the movement positioning hole corresponds to the movement through hole 3011, and an external connecting piece penetrates through the movement through hole 3011 and then is inserted into the movement positioning hole, so that the movement transmission shaft 302 and the movement transmission barrel 301 rotate synchronously.
The handpiece 1 comprises a horizontal handpiece cylinder 101 and an oblique handpiece cylinder 102, wherein the horizontal handpiece cylinder 101 and the oblique handpiece cylinder 102 are hollow cylinders and are communicated with a communication port 103; the horizontal handpiece cylinder 101 is provided with a first opening 1011, the upper end of the oblique handpiece cylinder 102 is provided with a second opening 1021, and a third opening 1022 at the lower end; a pressing type rear cover 303 is installed on the second opening 1021.
The third gear 42 extends into the horizontal handpiece cylinder 101 from the first opening 1011 and is disposed at the communication port 103, the movement transmission cylinder 301 is disposed in the oblique handpiece cylinder 102, and the fourth gear 31 is also disposed at the communication port 103; the fourth gear 31 and the third gear 42 are meshed with each other at the communicating port 103;
the central axis of horizontal aircraft nose section of thick bamboo 101 and slant aircraft nose section of thick bamboo 102 is the contained angle setting, fourth gear 31 with the central axis of third gear 42 is the contained angle setting, and is exemplary, is the setting at 45 degrees angles.
In the utility model, the inner body of the mobile phone also comprises a linkage sleeve 6, a nut 61 and a steel sleeve 62; the linkage sleeve 6 is fixedly sleeved on the lower end of the transmission shaft assembly 4 and the periphery of the rotating disc; the nut 61 and the steel sleeve 62 are sleeved outside the transition shaft 502; an inner cylinder 7 is further arranged in the rear shell 22, and the shifting fork assembly 5 is arranged in the inner cylinder 7;
the inner body of the mobile phone further comprises an optical fiber rod 91, the optical fiber rod 91 comprises a short optical fiber rod and a long optical fiber rod, the short optical fiber rod is installed in the handpiece, the long optical fiber rod is inserted upwards from the lower end of the rear shell 22, the lower end of the rear shell 22 is further connected with a bottom shell ring 23, and a steel ring 24 is further arranged between the bottom shell ring 23 and the lower end of the rear shell 22.
The utility model discloses a dental handpiece, the drive ratio before its second gear axle, first gear axle, third gear, second gear, first gear is the acceleration rate, and whole acceleration rate drive mechanism is mechanical transmission formula, rotates the in-process and can not stop to rotate because of receiving the cutting resistance, can become the high-speed rotation of car needle output with the low-speed rotation of motor to guarantee to have enough big moment of torsion, carry out effectual cutting. Completely meets the cutting requirements of doctors for the impacted tooth extraction, improves the working efficiency, reduces the pain of patients and saves the hospitalization time of both doctors and patients.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (9)
1. A dental handpiece for efficient tooth extraction comprises a handpiece, a movement assembly, a front shell and a rear shell, wherein the handpiece comprises a handpiece mounting cavity, and the movement assembly is arranged in the handpiece mounting cavity; the front end of the movement assembly is provided with a needle, the front end of the front shell is connected with the machine head, and the rear end of the front shell is connected with the rear shell; the dental handpiece also comprises a handpiece inner body, the front shell and the rear shell are sleeved outside the handpiece inner body, and the dental handpiece is characterized in that:
the mobile phone inner body comprises a transmission shaft assembly and a shifting fork assembly; the front end of the shifting fork component is provided with a shifting fork head, and the rear end of the shifting fork component is provided with a first gear; the front end of the transmission shaft assembly is provided with a second gear, the rear end of the transmission shaft assembly is provided with a third gear, and the movement assembly is provided with a fourth gear; the first gear is meshed with the second gear, and the third gear is meshed with the fourth gear;
the shifting fork head rotates under the action of external force, so that the first gear rotates to sequentially drive the second gear, the third gear and the fourth gear to rotate; the fourth gear rotates to drive the sewing needle to rotate.
2. A dental handpiece for efficient extraction of teeth according to claim 1, characterized in that: the shifting fork assembly comprises a shifting fork seat, a transition shaft, a rotating disc and a rotating shaft; the rotating disc comprises a gear disc and a hollow shaft connected with the lower gear disc;
one end of the transition shaft is connected with the shifting fork seat, the other end of the transition shaft is inserted into the hollow shaft, a plurality of saw teeth are arranged on the gear disc, a fifth gear is arranged at the lower end of the rotating shaft and meshed with the saw teeth, and the first gear is positioned at the upper end of the rotating shaft;
the shifting fork head is arranged at the lower end of the shifting fork seat, and the shifting fork head drives the transition shaft to rotate automatically and then drives the rotating disc to rotate after rotating; the sawteeth on the rotating disc drive the fifth gear to rotate, so that the first gear rotates.
3. A dental handpiece for efficient extraction of teeth according to claim 2, characterized in that: the peripheral wall of the upper end of the pulling fork seat is provided with a through hole, the lower end of the transition shaft is also provided with a positioning hole, the position of the positioning hole corresponds to the through hole, and an external connecting piece penetrates through the through hole and then is inserted into the positioning hole, so that the pulling fork seat and the transition shaft synchronously rotate.
4. A dental handpiece for efficient extraction of teeth as claimed in claim 3, wherein bearings are provided at both ends of the rotary shaft adjacent to the first and fifth gears; and bearings are also arranged on the transmission shaft assembly and close to the second gear and the third gear.
5. A dental handpiece for efficient extraction of teeth according to claim 3, characterized in that: the machine core component comprises a machine core transmission cylinder and a machine core rotating shaft, and the fourth gear is arranged on the outer side of the lower end of the machine core transmission cylinder; the machine core axis of rotation and core transmission section of thick bamboo are hollow structure, the core axis of rotation is followed the opening of the lower extreme of core transmission section of thick bamboo inserts, and fixed mounting is in the core transmission section of thick bamboo, the push type needle axle is still installed to the upper end of core transmission section of thick bamboo, the car needle is followed the opening of the lower extreme of core axis of rotation upwards inserts, fixed mounting is in the push type needle axle.
6. The dental handpiece for efficient extraction of teeth according to claim 5, wherein: the machine core transmission mechanism is characterized in that a machine core through hole is formed in the peripheral wall of the upper end of the machine core transmission barrel, a machine core positioning hole is formed in the lower end of the machine core rotating shaft, the position of the machine core positioning hole corresponds to the machine core through hole, and an external connecting piece penetrates through the machine core through hole and then is inserted into the machine core positioning hole, so that the machine core rotating shaft and the machine core transmission barrel synchronously rotate.
7. The dental handpiece for efficient extraction of teeth according to claim 5, wherein: the machine head comprises a horizontal machine head cylinder and an oblique machine head cylinder, and the horizontal machine head cylinder and the oblique machine head cylinder are hollow cylinders and are communicated with the communicating ports; the horizontal machine head cylinder is provided with a first opening, the upper end of the oblique machine head cylinder is provided with a second opening, and a third opening is arranged at the lower end of the oblique machine head cylinder; a pressing type rear cover is arranged on the second opening;
the third gear extends into the horizontal machine head cylinder from the first opening and is arranged at the communication port, the machine core transmission cylinder is arranged in the oblique machine head cylinder, and the fourth gear is also arranged at the communication port; the fourth gear is meshed with the third gear at the communicating port;
the central axis of a horizontal aircraft nose section of thick bamboo and an slant aircraft nose section of thick bamboo is the contained angle setting, the fourth gear with the central axis of third gear is the contained angle setting.
8. A dental handpiece for efficient extraction of teeth according to claim 7, characterized in that: the inner body of the mobile phone also comprises a linkage sleeve, a nut and a steel sleeve; the linkage sleeve is fixedly sleeved on the lower end of the transmission shaft assembly and the periphery of the rotating disc; the nut and the steel sleeve are sleeved outside the transition shaft; an inner cylinder is further arranged in the rear shell, and the shifting fork assembly is arranged in the inner cylinder;
the inner body of the mobile phone further comprises an optical fiber rod, the optical fiber rod comprises a short optical fiber rod and a long optical fiber rod, the short optical fiber rod is installed in the machine head, and the long optical fiber rod is inserted upwards from the lower end of the rear shell.
9. A dental handpiece for efficient extraction of teeth according to claim 8, characterized in that: the lower end of the rear shell is also connected with a bottom shell ring, and a steel ring is arranged between the bottom shell ring and the lower end of the rear shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020495554.4U CN212438895U (en) | 2020-04-08 | 2020-04-08 | Dental handpiece of high-efficient tooth extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020495554.4U CN212438895U (en) | 2020-04-08 | 2020-04-08 | Dental handpiece of high-efficient tooth extraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212438895U true CN212438895U (en) | 2021-02-02 |
Family
ID=74471905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020495554.4U Active CN212438895U (en) | 2020-04-08 | 2020-04-08 | Dental handpiece of high-efficient tooth extraction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212438895U (en) |
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2020
- 2020-04-08 CN CN202020495554.4U patent/CN212438895U/en active Active
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