Traction device for orthodontics
By designing the combination of connecting blocks, internal thread blocks, moving rings and spring telescopic rods, the problem of insufficient thread self-locking fixing ability in existing orthodontic devices is solved, and stable locking of the tension of the traction rope is achieved, and service life is extended.
Patent Information
- Application Number
- CN202422140245.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The existing orthodontic traction devices have limited thread self-locking and fixing capabilities, which are prone to damage the optimal tension due to daily touch.
A traction device including a connecting block, an internal threaded block, a moving ring, a limiting rod and a spring telescopic rod is designed. The tension of the traction rope is locked through the coordination between the limiting rod entering the limiting groove and the spring telescopic rod.
Improves the stability of the tension of the traction rope, prevents the optimal tension from being damaged due to daily touch, and extends the service life of the device.
Smart Images
Figure CN223054565U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tooth correction, in particular to a traction device for tooth correction. Background Art
[0002] When correcting ectopic teeth, first fix the traction device on the ectopic teeth, then pass the traction rope through the limit ring on the traction device, and finally tie both ends of the traction rope to the surface of the arch wire. After completion, use the adjustment part on the traction device to adjust the tension of the traction rope to the optimal tension, so as to use the pulling force of the traction rope to correct the ectopic teeth, and regular adjustment is required.
[0003] When some existing traction devices are adjusted, they are driven by a threaded structure, so that the limit ring moves, and then the tension of the traction rope can be adjusted. After adjustment, use the screw self-locking to fix the position of the limit ring, so as to lock the tension of the traction rope. However, the fixing ability of the screw self-locking is relatively limited. In daily life, users often touch the traction device, which is very easy to break through the screw self-locking upper limit of the threaded structure, so that the limit ring is forced to move, and then the optimal tension of the traction rope will be damaged, that is, the optimal pulling force of the traction rope on the ectopic teeth. Content of the Utility Model
[0004] The utility model aims at the deficiencies of the prior art and provides the following technical solutions: a traction device for tooth correction, including a correction mechanism installed on the tooth to be corrected, a traction rope is inserted through the correction mechanism, the correction mechanism includes a connection block, the tooth to be corrected has a connection block, several limit grooves are opened on the connection block, a threaded block is provided on the connection block, an internal threaded block is threadedly connected to the surface of the threaded block, one end of the internal threaded block is rotatably connected to a limit ring, two mounting blocks are provided on the internal threaded block, one end of the mounting block is connected to a spring telescopic rod, one end of the spring telescopic rod is connected to a moving ring, the moving ring is movably arranged on the surface of the internal threaded block, and two limit rods are provided at one end of the moving ring, and one end of the limit rod is adapted to the limit groove.
[0005] As an improvement of the above technical solution, a circular opening is opened on the surface of the moving ring.
[0006] As an improvement of the above technical solution, several circular openings are opened on the surface of the moving ring.
[0007] As an improvement of the above technical solution, an annular groove is opened on the side surface of the connection block, and the annular groove communicates with the limit groove.
[0008] As an improvement of the above technical solution, a magnetic ring is provided inside the annular groove, and an iron sheet is provided at one end of the limiting rod, and the iron sheet is arranged corresponding to the magnetic ring.
[0009] As an improvement of the above technical solution, a plurality of balls are arranged on the inner circular surface of the moving ring, and the moving ring is movably arranged on the surface of the internal thread block through the balls.
[0010] The beneficial effects of the present utility model:
[0011] After the tension of the towing rope is adjusted, release the moving ring. Under the elastic force of the telescopic rod, the moving ring is reset, so that the limiting rod enters the inside of the limiting groove. Furthermore, the internal thread block is fixed by using the limiting rod, the limiting groove and the spring telescopic rod, thereby locking the tension of the towing rope and further fixing its pulling force. Description of the drawings
[0012] Figure 1 It is the overall structure diagram of the present utility model;
[0013] Figure 2 It is the structure diagram of the correction mechanism of the present utility model;
[0014] Figure 3 It is the structure diagram of the iron sheet of the present utility model;
[0015] Figure 4 It is the structure diagram of the thread block of the present utility model;
[0016] Figure 5 It is the structure diagram of the moving ring of the present utility model.
[0017] Reference numerals: 1, tooth to be corrected; 2, correction mechanism; 21, connecting block; 22, limiting groove; 23, thread block; 24, internal thread block; 25, moving ring; 26, limiting ring; 27, mounting block; 28, spring telescopic rod; 29, limiting rod; 291, circular opening; 292, annular groove; 293, magnetic ring; 294, iron sheet; 295, ball; 3, towing rope. Detailed implementation manners
[0018] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present utility model, and are not used to limit the present utility model.
[0019] Please refer to Figures 1-5, the present utility model provides a technical solution: a traction device for tooth correction, including a correction mechanism 2 installed on the tooth 1 to be corrected. A traction rope 3 is inserted through the correction mechanism 2. The correction mechanism 2 includes a connection block 21. The tooth 1 to be corrected has the connection block 21. A plurality of limit slots 22 are provided on the connection block 21. The connection block 21 has a threaded block 23. An internally threaded block 24 is threadedly connected to the surface of the threaded block 23. One end of the internally threaded block 24 is rotatably connected to a limit ring 26. The internally threaded block 24 has two mounting blocks 27. One end of the mounting block 27 is connected to a spring telescopic rod 28. One end of the spring telescopic rod 28 is connected to a moving ring 25. The moving ring 25 is movably arranged on the surface of the internally threaded block 24. One end of the moving ring 25 has two limit rods 29. One end of the limit rod 29 is adapted to the limit slot 22.
[0020] In this implementation scheme, first, pass the traction rope 3 through the limit ring 26, and then tie the two ends of the traction rope 3 to the surface of the arch wire. After that, first move the moving ring 25. The moving ring 25 slides on the surface of the internally threaded block 24, so that the limit rod 29 disengages from the limit slot 22, and at the same time the spring telescopic rod 28 is compressed. Then rotate the moving ring 25, so as to drive the internally threaded block 24 to rotate through the spring telescopic rod 28 and the mounting block 27. At the same time, the limit rod 29 rotates. Since the internally threaded block 24 is threadedly connected to the threaded block 23, the internally threaded block 24 moves while rotating. Since the limit ring 26 is rotatably connected to the internally threaded block 24, the limit ring 26 only moves, so that the tension of the traction rope 3 can be adjusted. When the tension of the traction rope 3 is adjusted, release the moving ring 25. Under the elastic force of the spring telescopic rod 28, the moving ring 25 is reset, so that the limit rod 29 enters the inside of the limit slot 22, and then the internally threaded block 24 is fixed by the limit rod 29, the limit slot 22 and the spring telescopic rod 28, so as to lock the tension of the traction rope 3, and then fix its pulling force.
[0021] Specifically, a circular opening 291 is provided on the surface of the moving ring 25.
[0022] In this embodiment, by providing a circular opening 291 on the surface of the moving ring 25, a hook can hook the moving ring 25, so that it is convenient for the user to pull and rotate the moving ring 25 by using the hook.
[0023] Specifically, a plurality of circular openings 291 are provided on the surface of the moving ring 25.
[0024] In this embodiment, by providing a plurality of circular openings 291, a plurality of hooking positions in different directions can be provided for the user, so that it is convenient for the user to find a convenient hooking position.
[0025] Specifically, an annular groove 292 is formed on the side surface of the connecting block 21, and the annular groove 292 communicates with the limiting groove 22.
[0026] In this embodiment, since the annular groove 292 communicates with the limiting groove 22, by providing the annular groove 292, it is convenient for the user to discharge the food residues inside the limiting groove 22 when gargling.
[0027] Specifically, a magnetic ring 293 is provided inside the annular groove 292, and one end of the limiting rod 29 is provided with an iron sheet 294, and the iron sheet 294 is arranged corresponding to the magnetic ring 293.
[0028] In this embodiment, since the magnetic ring 293 has an attractive force on the iron sheet 294, through the mutual cooperation of the iron sheet 294 and the magnetic ring 293, a certain axial constraint can be imposed on the limiting rod 29, thereby axially stabilizing the spring telescopic rod 28 to a certain extent. Within a certain range, the spring telescopic rod 28 is prevented from deforming, thereby improving the stabilizing effect of this mechanism on the internal thread block 24.
[0029] Specifically, a plurality of balls 295 are provided on the inner circular surface of the moving ring 25, and the moving ring 25 is movably arranged on the surface of the internal thread block 24 through the balls 295.
[0030] In this embodiment, when the moving ring 25 moves on the surface of the internal thread block 24, the moving ring 25 rolls on the surface of the internal thread block 24 by means of the balls 295, thereby reducing the friction between the moving ring 25 and the internal thread block 24, and further reducing the wear between the two, and improving the service life of this mechanism.
[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.
Claims
1. A traction device for orthodontics, comprising an orthodontic mechanism (2) installed on a tooth to be orthodontically treated (1), with a traction rope (3) inserted through the orthodontic mechanism (2), characterized in that: The correction mechanism (2) includes a connection block (21). The tooth to be corrected (1) has the connection block (21). A number of limiting grooves (22) are formed in the connection block (21). A threaded block (23) is provided on the connection block (21). An internally threaded block (24) is threadedly connected to the surface of the threaded block (23). One end of the internally threaded block (24) is rotatably connected to a limiting ring (26). Two mounting blocks (27) are provided on the internally threaded block (24). One end of the mounting block (27) is connected to a spring telescopic rod (28). One end of the spring telescopic rod (28) is connected to a moving ring (25). The moving ring (25) is movably arranged on the surface of the internally threaded block (24). Two limiting rods (29) are provided at one end of the moving ring (25). One end of the limiting rod (29) is adapted to the limiting groove (22).
2. The traction device for orthodontics according to claim 1, wherein: A circular opening (291) is formed in the surface of the moving ring (25).
3. The traction device for orthodontics according to claim 2, wherein: A number of circular openings (291) are formed in the surface of the moving ring (25).
4. The traction device for tooth correction according to claim 1, characterized in that: An annular groove (292) is formed in the side surface of the connection block (21). The annular groove (292) communicates with the limiting groove (22).
5. The traction device for orthodontics according to claim 4, characterized in that: A magnetic ring (293) is provided inside the annular groove (292). An iron sheet (294) is provided at one end of the limiting rod (29). The iron sheet (294) is arranged corresponding to the magnetic ring (293).
6. The traction device for orthodontics according to claim 1, wherein: A number of balls (295) are arranged on the inner circular surface of the moving ring (25). The moving ring (25) is movably arranged on the surface of the internally threaded block (24) through the balls (295).