Self-ligating bracket

Abstract

The utility model discloses a self-ligating bracket which comprises a bracket body and a lock cover, one side of the bracket body is used for bonding a tooth surface, the other side of the bracket body is provided with an arch wire groove, one side, provided with the arch wire groove, of the bracket body is provided with a sliding groove, and the lock cover is installed on the bracket body in a sliding mode through the sliding groove. One end of the lock cover is located at a notch of the arch wire groove, an elastic piece is installed on the side, close to the bottom of the sliding groove, of the lock cover, and an arc-shaped limiting block is elastically arranged on the elastic piece. Limiting grooves matched with the arc-shaped limiting blocks are formed in the positions, located at the bottoms of the sliding grooves, of the bracket body; when the arc-shaped limiting block is clamped into the limiting groove, the arc-shaped limiting block is in a natural state. The application has the effects of reducing the situation of locking and unlocking failure of the lock cover and guaranteeing the treatment progress.

Description

Technical Field

[0001] The present invention relates to the field of dental medicine, and particularly to a self-ligating bracket. Background Art

[0002] At present, as an important innovation in the field of orthodontic treatment, self-ligating brackets have occupied an increasingly important position in orthodontic technology in recent years. Its unique self-locking design not only simplifies the operation process of orthodontic treatment, but also significantly improves the treatment efficiency and patient comfort.

[0003] Existing self-ligating brackets include a bracket body, a locking cover and an axle wire. An arch wire groove is formed on the bracket body. After the arch wire is clamped into the arch wire groove, the arch wire groove is covered by inserting the locking cover; and an axle hole also needs to be formed on the bracket body, the axle wire is inserted into the axle hole, and both ends of the axle wire are welded to the axle hole by a welding torch; when the locking cover is clamped on the bracket body, the elasticity of the axle wire can tightly press the locking cover to complete the position locking of the locking cover.

[0004] Regarding the above related technology, since the axle wire used to lock the locking cover needs to be welded to the axle hole, there may be a situation where the locking and unlocking of the locking cover fails due to insecure welding, thus affecting the treatment progress. Summary of the Invention

[0005] In order to reduce the situation of the locking and unlocking failure of the locking cover and ensure the treatment progress, the present application provides a self-ligating bracket.

[0006] A self-ligating bracket provided by the present application adopts the following technical solutions:

[0007] A self-ligating bracket includes a bracket body and a locking cover. One side of the bracket body is used for bonding to the tooth surface, and the other side is provided with an arch wire groove. A sliding groove is formed on the side of the bracket body where the arch wire groove is provided. The locking cover is slidably installed on the bracket body through the sliding groove. One end of the locking cover is located at the notch of the arch wire groove. A spring piece is installed on one side of the locking cover close to the bottom of the sliding groove, and an arc-shaped limiting block is elastically arranged on the spring piece; a limiting groove adapted to the arc-shaped limiting block is formed at the bottom position of the sliding groove of the bracket body; when the arc-shaped limiting block is clamped into the limiting groove, the arc-shaped limiting block is in a natural state.

[0008] By adopting the above technical solution, after the arch wire is clamped into the arch wire groove, the sliding lock cover is slid so that the lock cover covers the notch of the arch wire groove, and the arc-shaped limiting block is clamped into the limiting groove, thereby completing the limitation of the lock cover; when the lock cover needs to be opened, the lock cover is directly slid. Since the arc-shaped limiting block is arc-shaped, it can slide out of the limiting groove. At this time, the arc-shaped limiting block is in a squeezed state, which can limit the sliding position of the lock cover and prevent the lock cover from sliding off the bracket body; the above structure does not need to be provided with shaft holes, so welding treatment is not required, thereby reducing the situation of lock failure of the lock cover and ensuring the treatment progress.

[0009] In addition, since the arc-shaped limiting block is in a natural state at this time, and during the orthodontic treatment, the number of times of unlocking is very small and the bracket is in the locked state for a long time, compared with some cases where it is in a compressed state after the positioning of the lock cover is completed, it is not easy to deform and fail, and can be successfully opened when the lock cover needs to be opened.

[0010] Preferably, a pair of arc-shaped limiting blocks are provided, and the two arc-shaped limiting blocks are located on both sides of the elastic sheet.

[0011] By adopting the above technical solution, the position of the lock cover can be locked more stably, and when unlocking, the arc-shaped limiting block presses against the bottom of the sliding groove more stably.

[0012] Preferably, a sliding block is arranged at the position between the two arc-shaped limiting blocks of the elastic sheet, and a limiting groove is opened at the bottom of the sliding groove of the bracket body. The end of the sliding block away from the elastic sheet is slidably installed in the limiting groove; when the arc-shaped limiting block is clamped into the limiting groove, the distance between the end of the sliding block away from the elastic sheet and the end of the limiting groove is greater than or equal to the minimum distance for the lock cover to slide out of the arch wire groove.

[0013] By adopting the above technical solution, when the lock cover needs to be opened, the lock cover is toggled. Since the bracket itself is small, if the force is not well controlled, the lock cover will directly slide out of the sliding groove and fall into the patient's mouth; the sliding of the sliding block in the limiting groove plays a limiting role to prevent the lock cover from detaching from the sliding groove.

[0014] Preferably, an installation groove for the elastic sheet to be clamped is opened on one side of the lock cover close to the bottom of the sliding groove, and avoidance grooves are opened at the positions corresponding to the arc-shaped limiting block and the sliding block.

[0015] By adopting the above technical solution, the arrangement of the installation groove and the avoidance groove can provide space for the installation of the elastic sheet and the deformation space for the arc-shaped limiting block and the sliding block, so that the cooperation between the lock cover and the bracket body is more compact and the gap is reduced.

[0016] Preferably, the bracket body is provided with limiting sliding grooves on both sides of the bottom of the sliding groove, and limiting sliding blocks are provided on both sides of the lock cover, and the limiting sliding blocks are slidingly installed on the bracket body through the limiting sliding grooves.

[0017] By adopting the above technical solution, when the lock cover is moved to slide in the sliding groove, the limiting slider slides in the limiting sliding groove, so that the lock cover can slide stably and smoothly in the sliding groove.

[0018] Preferably, the bracket body is provided with a buckle groove near the notch of the archwire groove and directly opposite to the locking cover.

[0019] By adopting the above technical solution, when the lock cover needs to be opened, a tool such as a probe can be inserted into the buckle groove, and the lock cover can be opened by prying it lightly, providing operating space and facilitating use.

[0020] Preferably, a protrusion is provided on one end of the locking cover away from the bottom of the sliding groove and close to the archwire groove.

[0021] By adopting the above technical solution, when using a probe or other tool to open the lock cover, the torque at the contact point between the probe and the lock cover is increased, and the lock cover can be opened upward with less force, thereby improving the convenience of opening the lock cover.

[0022] Preferably, a bottom plate is installed on a side of the bracket body away from the archwire groove, and a mesh pattern is provided on a side of the bottom plate away from the bracket body.

[0023] By adopting the above technical solution, the bonding force between the bracket and the tooth surface can be strengthened.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. No need to open the axial hole, so no welding is required, which reduces the failure of the lock cover switch to ensure the progress of treatment; because the arc-shaped limit block is in a natural state when the lock cover is locked, and the number of unlockings is very small during the correction process, the bracket is in the locked state for a long time, so compared with some cases where the lock cover is in a compressed state after the positioning is completed, it is not easy to deform and fail, and the lock cover can be opened smoothly when it needs to be opened;

[0026] 2. When the lock cover needs to be opened, push the lock cover. Since the bracket itself is small, if the force is not well controlled, the lock cover will directly slide out of the sliding groove and fall into the patient's mouth; the sliding block slides in the limit groove to play a limiting role and prevent the lock cover from falling out of the sliding groove;

[0027] 3. The setting of the avoidance groove can provide space for the installation of the elastic piece and the deformation space for the arc-shaped limiting block and the sliding block, so that the cooperation between the lock cover and the bracket body is more compact and the gap is reduced. Brief Description of the Drawings

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0029] Figure 2 It is a schematic diagram of the structure of the bracket body of an embodiment of the present application.

[0030] Figure 3 It is a schematic diagram of the structure of the lock cover of an embodiment of the present application.

[0031] Figure 4 It is a cross-sectional view of the mating structure of the arc-shaped limiting block and the limiting groove of an embodiment of the present application.

[0032] Figure 5 It is a cross-sectional view of the mating structure of the sliding block and the limiting groove of an embodiment of the present application.

[0033] Description of the Reference Numerals:

[0034] 1. Bracket body; 11. Bottom plate; 12. Arch wire groove; 13. Sliding groove; 14. Limiting sliding groove; 15. Limiting groove; 16. Limiting slot; 17. Buckling slot; 2. Lock cover; 21. Limiting slider; 22. Installation groove; 23. Avoidance groove; 24. Protrusion; 3. Elastic piece; 31. Arc-shaped limiting block; 32. Sliding block. Detailed Description of the Embodiment

[0035] The following will further describe the present application in detail with reference to the attached Figures 1-5 drawings.

[0036] An embodiment of the present application discloses a self-locking bracket. Referring to Figure 1 , the self-locking bracket includes a bracket body 1 and a lock cover 2. A bottom plate 11 is fixedly installed on one side of the bracket body 1, and an arch wire groove 12 is provided on the other side. The cross-sectional area of the bottom plate 11 is larger than that of the bracket body 1. A reticulate pattern is provided on the side of the bottom plate 11 away from the bracket body 1, so that the bottom plate 11 is more firmly adhered to the tooth surface; a sliding groove 13 is provided on the side of the bracket body 1 where the arch wire groove 12 is opened. One end of the sliding groove 13 communicates with the arch wire groove 12, and the other end extends vertically upward outside the bracket body 1; the lock cover 2 is slidably installed on the bracket body 1 through the sliding groove 13. One end of the lock cover 2 abuts against the notch of the arch wire groove 12 and is on the side away from the sliding groove 13, and the other end extends to be flush with the top of the sliding groove 13. Thus, after the arch wire is inserted into the arch wire groove, the sliding lock cover 2 can limit the arch wire in the arch wire groove 12.

[0037] Referring to Figure 1 and Figure 2, on both sides of the bottom of the sliding groove 13 of the bracket body 1, limiting sliding grooves 14 are provided, and the limiting sliding grooves 14 extend in the extending direction of the sliding groove 13; on both sides of the locking cover 2, limiting sliding blocks 21 are integrally formed, and the limiting sliding blocks 21 extend in the extending direction of the limiting sliding grooves 14. The limiting sliding blocks 21 are slidably installed in the bracket body 1 through the limiting sliding grooves 14, so that the locking cover 2 can stably slide in the sliding groove 13 in the extending direction of the sliding groove 13.

[0038] Refer to Figure 2 and Figure 3 , on the side of the locking cover 2 close to the sliding groove 13, an elastic piece 3 is fixedly installed, and on both sides of the elastic piece 3, arc-shaped limiting blocks 31 are elastically connected; on the bottom of the sliding groove 13 of the bracket body 1 and at positions corresponding to each arc-shaped limiting block 31, limiting grooves 15 are provided, and the limiting grooves 15 are arc-shaped grooves adapted to the radian of the arc-shaped limiting blocks 31; refer to Figure 4 , the arc-shaped limiting blocks 31 are clamped to the bracket body 1 through the limiting grooves 15. When the arc-shaped limiting blocks 31 are inserted into the limiting grooves 15, the arc-shaped limiting blocks 31 are in a natural state.

[0039] Refer to Figure 2 and Figure 3 , at the position between the two arc-shaped limiting blocks 31 of the elastic piece 3, a sliding block 32 is provided. On the bottom of the sliding groove 13 of the bracket body 1 and at the position corresponding to the sliding block 32, a limiting groove 16 is provided, and the limiting groove 16 extends in the length direction of the sliding groove 13, that is, the limiting groove 16 is located between the two limiting grooves 15. The end of the sliding block 32 away from the elastic piece 3 is slidably installed in the limiting groove 16; refer to Figure 4 and Figure 5 , when the arc-shaped limiting blocks 31 are inserted into the limiting grooves 15, the distance between the end of the sliding block 32 away from the elastic piece 3 and the end of the limiting groove 16 is greater than or equal to the minimum distance for the locking cover 2 to slide away from the arch wire groove 12. In this embodiment, the distance between the end of the sliding block 32 away from the elastic piece 3 and the end of the limiting groove 16 is equal to the minimum distance for the locking cover 2 to slide away from the arch wire groove 12, that is, when the sliding block 32 abuts against the end position of the limiting groove 16, the locking cover 2 leaves the arch wire groove 12.

[0040] Refer to Figure 3 and Figure 4 , on the side of the bottom of the locking cover 2 close to the sliding groove 13, an installation groove 22 for the elastic piece 3 to be inserted into is provided, and avoidance grooves 23 are provided at positions corresponding to the arc-shaped limiting blocks 31 and the sliding block 32. The elastic piece 3 is fixed in the installation groove 22 by bonding or inlaying, etc., and the avoidance grooves 23 are used for the arc-shaped limiting blocks 31 to deform and avoid positions.

[0041] Refer to Figure 1, a buckle groove 17 is formed at the notch position of the bracket body 1 close to the arch wire groove 12 and facing the lock cover 2. A convex block 24 is integrally formed at the bottom side of the lock cover 2 away from the sliding groove 13 and close to the buckle groove 17. Thus, when the lock cover 2 needs to be opened, tools such as a probe can be inserted into the buckle groove 17, and the lock cover 2 can be opened by gently prying it with a little force.

[0042] The implementation principle of a self-locking bracket in an embodiment of the present application is as follows: after the arch wire is clamped into the arch wire groove 12, the lock cover 2 is slid so that the lock cover 2 covers the notch of the arch wire groove 12, and the arc-shaped limiting block 31 is clamped into the limiting groove 15, thereby completing the limitation of the lock cover 2; when the lock cover 2 needs to be opened, tools such as a probe are inserted into the buckle groove 17, and the lock cover 2 can be slid by gently prying it with a little force. Since the arc-shaped limiting block 31 is arc-shaped, it can slide out of the limiting groove 15; until the sliding block 32 abuts against the end of the limiting groove 16, at this time the arc-shaped limiting block 31 is in a squeezed state, which can limit the sliding position of the lock cover 2 and prevent the lock cover 2 from sliding off the bracket body 1 or sliding down due to its own gravity.

[0043] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A self-ligating bracket, comprising a bracket body (1) and a locking cover (2), wherein one side of the bracket body (1) is used for bonding a tooth surface, and the other side is provided with an archwire groove (12), and the side of the bracket body (1) provided with the archwire groove (12) is provided with a sliding groove (13), and the locking cover (2) is slidably mounted on the bracket body (1) through the sliding groove (13), and one end of the locking cover (2) is located at the notch of the archwire groove (12), characterized in that: A spring sheet (3) is installed on one side of the lock cover (2) near the bottom of the sliding groove (13), and an arc-shaped limit block (31) is elastically arranged on the spring sheet (3); a limit groove (15) matching the arc-shaped limit block (31) is provided on the bracket body (1) at the bottom of the sliding groove (13); when the arc-shaped limit block (31) is inserted into the limit groove (15), the arc-shaped limit block (31) is in a natural state.

2. A self-ligating bracket according to claim 1, characterized in that: A pair of arc-shaped limit blocks (31) are provided, and the two arc-shaped limit blocks (31) are located on both sides of the spring sheet (3).

3. A self-ligating bracket according to claim 2, characterized in that: The spring sheet (3) is provided with a sliding block (32) at a position between the two arc-shaped limiting blocks (31); the bracket body (1) is provided with a limiting groove (16) at the bottom of the sliding groove (13); one end of the sliding block (32) away from the spring sheet (3) is slidably installed in the limiting groove (16); when the arc-shaped limiting block (31) is inserted into the limiting groove (15), the distance between the end of the sliding block (32) away from the spring sheet (3) and the end of the limiting groove (16) is greater than or equal to the minimum distance that the locking cover (2) slides away from the archwire groove (12).

4. A self-ligating bracket according to claim 3, characterized in that: The lock cover (2) is provided with a mounting groove (22) for the spring piece (3) to be inserted into on one side of the bottom of the sliding groove (13), and avoidance grooves (23) are provided at positions corresponding to the arc-shaped limit block (31) and the sliding block (32).

5. The self-ligating bracket according to claim 1, characterized in that: The bracket body (1) is provided with limit sliding grooves (14) at both sides of the bottom of the sliding groove (13), and limit sliding blocks (21) are provided on both sides of the lock cover (2). The limit sliding blocks (21) are slidably mounted on the bracket body (1) through the limit sliding grooves (14).

6. The self-ligating bracket according to claim 1, characterized in that: The bracket body (1) is provided with a buckle groove (17) near the notch position of the archwire groove (12) and directly opposite to the locking cover (2).

7. The self-ligating bracket according to claim 1, characterized in that: A protrusion (24) is provided on one end of the lock cover (2) away from the bottom of the sliding groove (13) and close to the archwire groove (12).

8. The self-ligating bracket according to claim 1, characterized in that: A bottom plate (11) is installed on the side of the bracket body (1) away from the archwire slot (12), and a mesh pattern is provided on the side of the bottom plate (11) away from the bracket body (1).

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