CN204600728U - A kind of high speed dental turbo hand machine head and its axle core - Google Patents
A kind of high speed dental turbo hand machine head and its axle core Download PDFInfo
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- CN204600728U CN204600728U CN201520184901.0U CN201520184901U CN204600728U CN 204600728 U CN204600728 U CN 204600728U CN 201520184901 U CN201520184901 U CN 201520184901U CN 204600728 U CN204600728 U CN 204600728U
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- bearing post
- folder needle
- screw thread
- high speed
- axle core
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Abstract
This utility model relates to a kind of high speed dental turbo mobile phone axle core, and it comprises bearing post and folder needle; Bearing post is both ends open and hollow columnar axle sleeve; Folder needle is arranged on the inside of bearing post; One end of folder needle is provided with clamping part, and the other end of folder needle is provided with the first screw thread; One end of bearing post is provided with the conical surface matched with clamping part, and the end of bearing post is provided with the second screw thread matched with the first screw thread; First screw thread is set to left hand thread.The beneficial effects of the utility model are: when dental handpiece works, and folder needle would not rotate backward, can only be that the direction of locking forward rotates.On bearing post, end place, female thread lower end is provided with limited step, the direction that folder needle is locked forward can be subject to a definite limitation when rotating, and can not rotate forward always, but the space of limited step is little, can not exist because with folder needle high-speed friction and produce the situation of high temperature.Avoid folder needle and bonnet generation high speed rotary grinding, extend the service life of dental handpiece.
Description
Technical field
This utility model relates to a kind of high speed dental turbo hand machine head and its axle core.
Background technology
Dental handpiece is that the one of the department of stomatology commonly uses medical apparatus and instruments; its operation principle utilizes high pressure air pressure to blow turbine to be then with motor-car pin to run up, and rotating speed, usually more than 200,000 revs/min, dispels the bad tissue of dental caries in order to cut tooth body; or prepare baking-ceramic tooth, also can be used for polishing artificial tooth etc.
Dental handpiece, according to the difference of its clamping trolley pin mode, can be divided into purl formula dental handpiece and pressing type dental handpiece, and car pin is locked on dental handpiece by purl device by purl formula dental handpiece; Pressing type dental handpiece is by pressing its bonnet to lock or taking off car pin.The parts of dental handpiece clamping trolley pin are axle cores, and the axle core of purl formula dental handpiece is made up of two accessories: bearing post and folder needle, folder needle is threaded connection the inside being arranged on bearing post usually.When dental handpiece works, it is inner that car pin is inserted into three lobe springs, and tighten with the purl spanner of special dismounting car pin the object that three lobe springs can reach clamping trolley pin, now bearing post, three lobe springs and car pin compact siro spinning technology are integrated.
Dental handpiece, when Clinical practice, usually needs to carry out to clean, the operation such as oiling and test, in the process of these operations, and frequent not installation car pin on dental handpiece.On dental handpiece not installation car pin start dental handpiece, dental handpiece meeting moment high speed rotating, owing to having gap between three lobe springs and bearing post, three meeting of lobe springs and bearing post relative motioies, three lobe springs can depart from bearing post by high speed rotating backward, and then withstand the head bonnet of dental handpiece.Behind three lobe spring tops to bonnet of high speed rotating, will rub generation high temperature, and after continuous high temperature, three lobe springs and bonnet will weld together, and cause dental handpiece disabling damage.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of high speed dental turbo hand machine head and its axle core, solves the deficiencies in the prior art.
The technical scheme that this utility model solves the problems of the technologies described above is as follows: a kind of high speed dental turbo mobile phone axle core, and it comprises bearing post and folder needle; Bearing post is both ends open and hollow columnar axle sleeve; Folder needle is arranged on the inside of bearing post; One end of folder needle is provided with clamping part, and the other end of folder needle is provided with the first screw thread; One end of bearing post is provided with the conical surface matched with clamping part, and the end of bearing post is provided with the second screw thread matched with the first screw thread; First screw thread is set to left hand thread.
Further: in bearing post, to be provided with first ring connected in star near the second screw thread place; First ring connected in star is provided with limited step away from one end of the second screw thread.
Further: bearing post is provided with arc angling away from the port of first ring connected in star.
Further: folder needle is pintongs spring or three lobe springs.
Further: in bearing post, to be provided with the second annular groove near conical surface place.
The technical scheme that this utility model solves the problems of the technologies described above is as follows: a kind of high speed dental turbo hand machine head, and it comprises casing, car pin and above-mentioned axle core; Axle core is arranged in casing, and car pin is clamped in the folder needle of axle core; The direction that folder needle is tightened on bearing post is contrary with the direction of rotation of car pin.
The beneficial effects of the utility model are: the technical solution of the utility model is that folder needle and bearing post are designed to left hand thread design, and the direction of rotation that folder needle is tightened to direction on bearing post and car pin is contrary, namely contrary with the direction of rotation of bearing post.When dental handpiece works, folder needle would not rotate backward, can only be that the direction of locking forward rotates.On bearing post, end place, female thread lower end is provided with limited step, the direction that folder needle is locked forward can be subject to a definite limitation when rotating, and can not rotate forward always, but the space of limited step is little, can not exist because with folder needle high-speed friction and produce the situation of high temperature.Avoid folder needle and bonnet generation high speed rotary grinding, extend the service life of dental handpiece.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of bearing post;
Fig. 3 is the structural representation of folder needle.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining this utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of high speed dental turbo mobile phone axle core, it comprises bearing post 1 and folder needle 2; Bearing post 1 is both ends open and hollow columnar axle sleeve; Folder needle 2 is arranged on the inside of bearing post 1; One end of folder needle 2 is provided with clamping part 21, and the other end of folder needle 2 is provided with the first screw thread 22; One end of bearing post 1 is provided with the conical surface 11 matched with clamping part 21, and the end of bearing post 1 is provided with the second screw thread 12 matched with the first screw thread 22; First screw thread 22 is set to left hand thread.
Preferred: folder needle 2 is pintongs spring or three lobe springs.
Preferred: be provided with first ring connected in star 13 near the second screw thread 12 place in bearing post 1, first ring connected in star 13 is arranged on the top of the second screw thread 12; First ring connected in star 13 is provided with limited step 14 away from one end of the second screw thread 12.Acting as of limited step 14 a: definite limitation can be subject to when folder needle 2 direction of locking forward rotates, and can not rotate forward always, but the space of limited step is little, can not exist because with folder needle 2 high-speed friction and produce the situation of high temperature.Avoid folder needle and bonnet generation high speed rotary grinding, extend the service life of dental handpiece.
Preferred: bearing post 1 is provided with arc angling away from the port of first ring connected in star 13.Arc angling can conveniently insert car pin.
Preferred: in bearing post 1, to be provided with the second annular groove 15 near the conical surface 11 place; Second annular groove 15 is arranged on the below of the conical surface 11.
A kind of high speed dental turbo hand machine head, it comprises casing, car pin and above-mentioned axle core; Axle core is arranged in casing, and car pin is clamped in the folder needle 2 of axle core; The direction that folder needle 2 is tightened on bearing post 1 is contrary with the direction of rotation of car pin.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a high speed dental turbo mobile phone axle core, is characterized in that: comprise bearing post (1) and folder needle (2); Described bearing post (1) is for both ends open and hollow columnar axle sleeve; Described folder needle (2) is arranged on the inside of described bearing post (1); One end of described folder needle (2) is provided with clamping part (21), and the other end of described folder needle (2) is provided with the first screw thread (22); One end of described bearing post (1) is provided with the conical surface (11) matched with described clamping part (21), and the end of described bearing post (1) is provided with the second screw thread (12) matched with described first screw thread (22); Described first screw thread (22) is set to left hand thread.
2. a kind of high speed dental turbo mobile phone axle core according to claim 1, is characterized in that: is provided with first ring connected in star (13) near described second screw thread (12) place in described bearing post (1); Described first ring connected in star (13) is provided with limited step (14) away from one end of described second screw thread (12).
3. a kind of high speed dental turbo mobile phone axle core according to claim 2, is characterized in that: described bearing post (1) is provided with arc angling away from the port of described first ring connected in star (13).
4. a kind of high speed dental turbo mobile phone axle core according to claim 1, is characterized in that: described folder needle (2) is pintongs spring or three lobe springs.
5. a kind of high speed dental turbo mobile phone axle core according to any one of Claims 1-4, is characterized in that: be provided with the second annular groove (15) near the described conical surface (11) place in described bearing post (1).
6. a high speed dental turbo hand machine head, is characterized in that: comprise casing, car pin and the axle core as described in any one of claim 1 to 5; Described axle core is arranged in described casing, and described car pin is clamped on the described folder needle (2) of described axle core; The direction that described folder needle (2) is tightened on described bearing post (1) is contrary with the direction of rotation of described car pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520184901.0U CN204600728U (en) | 2015-03-30 | 2015-03-30 | A kind of high speed dental turbo hand machine head and its axle core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520184901.0U CN204600728U (en) | 2015-03-30 | 2015-03-30 | A kind of high speed dental turbo hand machine head and its axle core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204600728U true CN204600728U (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520184901.0U Active CN204600728U (en) | 2015-03-30 | 2015-03-30 | A kind of high speed dental turbo hand machine head and its axle core |
Country Status (1)
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| CN (1) | CN204600728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104706430A (en) * | 2015-03-30 | 2015-06-17 | 桂林市啄木鸟医疗器械有限公司 | Dental high-speed turbine handpiece head and central spindle thereof |
-
2015
- 2015-03-30 CN CN201520184901.0U patent/CN204600728U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104706430A (en) * | 2015-03-30 | 2015-06-17 | 桂林市啄木鸟医疗器械有限公司 | Dental high-speed turbine handpiece head and central spindle thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |