Orthodontic bracket

Abstract

The orthodontic bracket comprises a bracket body and a lock cover, one side of the bracket body is provided with a bottom plate for bonding a dental surface, the other side of the bracket body is provided with an arch wire groove, one side of the bracket body provided with the arch wire groove is provided with a sliding groove, the lock cover is installed on the bracket body in a sliding mode through the sliding groove, and the orthodontic bracket further comprises a plurality of elastic columns, a sliding groove and a plurality of locking blocks, the elastic columns are arranged at intervals in the direction perpendicular to the sliding direction of the lock cover, and one ends of the elastic columns are installed in the sliding grooves in a sliding mode. The locking blocks are installed in the sliding grooves, the multiple locking blocks are arranged on the sliding paths of the elastic columns correspondingly, and the two sides, on the sliding paths of the elastic columns, of the locking blocks are each provided with a guide face; one end, far away from the sliding groove, of the elastic column is connected to the lock cover; the sliding groove is formed in the bracket body and located at the bottom of the sliding groove; or one end, far away from the sliding groove, of the elastic column is connected to the bracket body at the bottom of the sliding groove, and the sliding groove is formed in one side, facing the bottom of the sliding groove, of the lock cover. The application has the effect of improving the locking stability of the lock cover.

Description

Technical Field

[0001] This invention relates to the field of dental medicine, and in particular to an orthodontic bracket. Background Technology

[0002] Orthodontic brackets are a crucial component of fixed orthodontic techniques. They are directly bonded to the tooth crown surface using adhesive, and the archwire applies various types of corrective forces to the teeth through the brackets. The main function of the brackets is to fix the archwire, allowing it to function more effectively, transmitting corrective forces, and thus controlling the three-dimensional movement of the teeth to achieve the goal of orthodontic treatment.

[0003] Existing orthodontic brackets include a bracket body, a spool wire, and a locking cap. The bracket body has an archwire groove for the archwire to be inserted into. The locking cap is slidably mounted on the bracket body to stabilize the archwire within the archwire groove. The bracket has a spool hole with both ends extending out of the bracket body. The spool wire is inserted into the spool hole and deforms to lock the locking cap in the corresponding position on the bracket body.

[0004] The aforementioned technology involves a single shaft thread abutting against the inward-facing surface of the lock cover, using friction to lock the cover. However, this locking method lacks stability. Summary of the Invention

[0005] To improve the locking stability of the locking cover, this application provides an orthodontic bracket.

[0006] This application provides an orthodontic bracket, which adopts the following technical solution:

[0007] An orthodontic bracket includes a bracket body and a locking cover. One side of the bracket body has a base plate for bonding to the tooth surface, and the other side has an archwire groove. The side of the bracket body with the archwire groove has a sliding groove communicating with the archwire groove. The locking cover is slidably mounted on the bracket body via the sliding groove. The bracket also includes several elastic posts, a sliding groove, and several locking blocks. The elastic posts are spaced apart perpendicular to the sliding direction of the locking cover, and one end of each elastic post is slidably mounted in the sliding groove in the sliding direction of the locking cover. The locking blocks are installed in the sliding groove, and the locking blocks are respectively arranged on the sliding paths of each elastic post. Each locking block has guide surfaces on both sides of the sliding path of the elastic post, and the locking blocks divide the sliding groove into an unlocked position and a locked position in the sliding direction of the locking cover.

[0008] The end of the elastic column away from the slide groove is connected to the lock cover, and the slide groove is formed at the bottom of the slide groove where the support body is located;

[0009] or:

[0010] The end of the elastic column away from the slide groove is connected to the support body at the bottom of the slide groove, and the slide groove is opened on the side of the lock cover facing the bottom of the slide groove.

[0011] By adopting the above technical solution, during use, the lock cover is slid in the sliding groove using a tool. When the lock cover slides away from the bow wire groove, the guide surface on the locking block causes the ends of several elastic pins to deform in the sliding groove until the elastic pins enter the unlocking position, thus unlocking the lock cover and allowing the bow wire to be removed from the bow wire groove. When the lock cover slides closer to the bow wire groove, the guide surface on the locking block causes the ends of several elastic pins to deform in the sliding groove until the elastic pins enter the locking position, thus locking the lock cover and stabilizing the bow wire in the bow wire groove. The above structure uses several elastic pins locked in the corresponding unlocking or locking positions to lock the position of the lock cover, which not only restricts the position of the lock cover through friction but also improves the locking stability of the lock cover. Furthermore, the bow wire groove can be opened and closed simply by sliding the lock cover in the sliding groove, making it convenient to operate and highly practical.

[0012] Preferably, a pair of elastic columns are provided, and the ends of the two elastic columns away from the slide groove are connected by a connecting rod to form an elastic element. An installation groove is provided in the lock cover or the bracket body, and the elastic element is snapped into the installation groove. A locking block is provided in the installation groove, and the locking block is located between the two elastic columns and the connecting rod.

[0013] By adopting the above technical solution, the elastic columns are set as a pair and connected into a whole by a connecting rod. During installation, the whole can be directly snapped into the mounting groove to complete the installation. This not only satisfies the multi-point positioning and locking of the lock cover, but also makes the installation convenient and highly practical.

[0014] Preferably, when the elastic element is installed on the lock cover, the lock cover has a first mounting hole connected to the mounting groove on the side away from the bottom of the sliding groove and corresponding to the position of the elastic element, and a cover plate is snapped onto the lock cover at the first mounting hole.

[0015] By adopting the above technical solution, when installing the elastic element, first slide the lock cover into the sliding groove, then insert the elastic element into the mounting groove from the first mounting hole until the ends of the two elastic columns are engaged in the corresponding sliding grooves and the connecting rod abuts against the locking block. Then, place the cover plate on the first mounting hole and finally use a spot welding machine to weld and fix the cover plate on the lock cover, thereby completing the installation of the elastic element. The installation process is convenient.

[0016] Preferably, when the elastic element is installed on the bracket body, the bracket body has a second mounting hole that communicates with the mounting groove on the side near the base plate and corresponding to the position of the elastic element.

[0017] By adopting the above technical solution, when installing the elastic component, first slide the lock cover into the sliding groove, then insert the elastic component into the mounting groove from the second mounting hole until the ends of the two elastic columns are engaged in the corresponding sliding grooves and the connecting rod abuts against the locking block. Then, use a spot welding machine to weld the bracket body and the base plate together, thereby completing the installation of the elastic component. The installation process is convenient.

[0018] Preferably, the bracket body has a plurality of positioning grooves on the side near the base plate, and the base plate has positioning blocks on the side near the bracket body and corresponding to the positions of the positioning grooves, and the positioning blocks are engaged with the positioning grooves.

[0019] By adopting the above technical solution, after the elastic element is installed, the positioning block on the base plate is inserted into the positioning groove on the bracket body to achieve initial positioning. Then, the welding between the base plate and the bracket body is carried out, which improves the welding accuracy and avoids relative displacement between the base plate and the bracket body during the welding process.

[0020] Preferably, the sliding groove is provided at the positions of the two elastic columns, and the two locking blocks are respectively located on the side of the two sliding grooves that are close to each other.

[0021] By adopting the above technical solution, grooves can be opened only at the positions of the corresponding elastic columns, thereby reducing the groove area and improving the strength of the grooved components.

[0022] Preferably, the slide is a single track, and the two locking blocks are respectively disposed on opposite sides of the slide.

[0023] By adopting the above technical solution, the two locking blocks are installed in the same groove, that is, the two elastic columns slide in the same groove, making the processing groove more convenient and faster.

[0024] Preferably, the bracket body has limit grooves on both sides of the bottom of the sliding groove, and the locking cover has limit blocks on both sides, the limit blocks being slidably installed on the bracket body through the limit grooves.

[0025] By adopting the above technical solution, during the process of the lock cover sliding in the sliding groove, the limiting block slides in the limiting groove, so that the lock cover can slide stably and smoothly in the sliding groove.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The lock cover is locked by using several elastic pins in the corresponding unlock or lock positions. This not only restricts the position of the lock cover by friction, but also improves the locking stability of the lock cover. Furthermore, the opening and closing of the bow wire groove can be achieved simply by sliding the lock cover in the sliding groove, which is convenient to operate and highly practical.

[0028] 2. The elastic posts are set as a pair and connected into a whole by a connecting rod. During installation, the whole can be directly snapped into the mounting groove to complete the installation. This not only meets the requirements of multi-point positioning and locking of the lock cover, but also makes the installation convenient and highly practical.

[0029] 3. When the elastic element is installed on the lock cover, first slide the lock cover into the sliding groove, then insert the elastic element into the mounting groove from the first mounting hole until the ends of the two elastic columns are engaged in the corresponding sliding grooves and the connecting rod abuts against the locking block. Then, place the cover plate on the first mounting hole and finally use a spot welding machine to weld the cover plate to the lock cover. When the elastic element is installed on the bracket body, after the elastic element is engaged in the mounting groove, the base plate and the bracket body are welded together to complete the installation. Both installation methods are convenient. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0031] Figure 2 This is an exploded view of the overall structure of Embodiment 1 of this application.

[0032] Figure 3 This is a cross-sectional view of the elastic element mounting structure of Embodiment 1 of this application.

[0033] Figure 4 This is a cross-sectional view of the positional structure between the elastic column and the groove in Embodiment 1 of this application.

[0034] Figure 5 This is a cross-sectional view of the positional structure between the elastic column and the groove in Embodiment 2 of this application.

[0035] Figure 6 This is a schematic diagram of the overall structure of Embodiment 3 of this application.

[0036] Figure 7 This is an exploded view of the overall structure of Embodiment 3 of this application.

[0037] Figure 8 This is a cross-sectional view of the elastic element mounting structure of Embodiment 3 of this application.

[0038] Figure 9 This is a cross-sectional view of the positional structure between the elastic column and the groove in Embodiment 3 of this application.

[0039] Figure 10 This is a schematic diagram of the structure of the bracket body near the bottom plate in Embodiment 3 of this application.

[0040] Figure 11 This is a cross-sectional view of the positional structure between the elastic column and the groove in Embodiment 4 of this application.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Support body; 11. Bow wire groove; 12. Sliding groove; 13. Limiting groove; 14. Buckling groove; 15. Second mounting hole; 16. Positioning groove; 2. Lock cover; 21. Limiting block; 22. First mounting hole; 23. Cover plate; 24. Force block; 3. Base plate; 31. Positioning block; 4. Elastic element; 41. Elastic column; 42. Connecting rod; 5. Mounting groove; 51. Locking block; 6. Sliding groove; 61. Unlocked position; 62. Locked position; 7. Locking block; 71. Guide surface. Detailed Implementation

[0043] The following is in conjunction with the appendix Figure 1-11 This application will be described in further detail.

[0044] This application discloses an orthodontic bracket.

[0045] Example 1

[0046] Reference Figure 1 and Figure 2 The orthodontic bracket includes a bracket body 1 and a locking cap 2. A base plate 3 is provided on one side of the bracket body 1, and an archwire groove 11 is provided on the other side. The cross-sectional area of ​​the base plate 3 is larger than that of the bracket body 1. The base plate 3 is arc-shaped to fit the tooth surface. The side of the base plate 3 away from the bracket body 1 is used for bonding to the tooth surface. A mesh pattern is provided on the side of the base plate 3 away from the bracket body 1 to make the base plate 3 more securely bonded to the tooth surface. A sliding groove 12 is provided on the side of the bracket body 1 where the archwire groove 11 is located. The sliding groove 12 extends upward in a direction perpendicular to the depth of the bow wire groove 11. One end of the sliding groove 12 is connected to the bow wire groove 11, and the other end extends out of the top of the bracket body 1. The locking cover 2 is slidably installed on the bracket body 1 through the sliding groove 12. One end of the locking cover 2 abuts against the opening of the bow wire groove 11 and is away from the side of the sliding groove 12, and the other end extends to the top of the sliding groove 12. Thus, when the bow wire is inserted into the bow wire groove 11, the sliding locking cover 2 can limit the bow wire in the bow wire groove 11.

[0047] Reference Figure 1 and Figure 2 The bracket body 1 has limiting grooves 13 on both sides of the bottom of the sliding groove 12, and the limiting grooves 13 extend in the extending direction of the sliding groove 12; the locking cover 2 has integrally formed limiting blocks 21 on both sides, and the limiting blocks 21 extend in the extending direction of the limiting groove 13. The limiting blocks 21 are slidably installed on the bracket body 1 through the limiting grooves 13, so that the locking cover 2 can slide stably in the sliding groove 12 in the extending direction of the sliding groove 12.

[0048] Reference Figure 2 , Figure 3 and Figure 4The orthodontic bracket also includes a pair of elastic posts 41, each of which is a flexible cylindrical shape. The two elastic posts 41 are spaced apart in a direction perpendicular to the sliding direction of the locking cover 2. One end of each elastic post 41 is integrally connected by a connecting rod 42. The two elastic posts 41 and the connecting rod 42 form a U-shaped elastic element 4. The locking cover 2 has an installation groove 5. The locking cover 2 is located in the installation groove 5 and a locking block 51 is integrally formed on the side of the groove bottom near the sliding groove 12. The elastic element 4 is engaged in the installation groove 5, and the locking block 51 is engaged between the two elastic posts 41 and the connecting rod 42, thereby locking the elastic element 4.

[0049] The ends of the two elastic posts 41 away from the connecting rod 42 extend out of the lock cover 2; the bracket body 1 is located at the bottom of the sliding groove 12 and a sliding groove 6 is opened corresponding to the position of each elastic post 41, that is, two sliding grooves 6 are opened. The sliding grooves 6 extend in the sliding direction of the lock cover 2. The ends of the two elastic posts 41 extending out of the lock cover 2 are slidably installed in the corresponding sliding grooves 6. That is, during the sliding of the lock cover 2 along the sliding groove 12, the ends of the elastic posts 41 slide in the sliding grooves 6; the side of the two sliding grooves 6 that is close to each other is the position where the elastic posts 41 slide in the sliding grooves 6. The middle position of the side of the two sliding grooves 6 that is close to each other is uniform. The body is formed with a locking block 7. The locking block 7 has guide surfaces 71 on both sides of the sliding path of the elastic column 41. The locking block 7 divides the sliding groove 6 into an unlocking position 61 and a locking position 62 in the sliding direction of the lock cover 2. The unlocking position 61 is located on the side of the locking block 7 away from the bow wire groove 11, and the locking position 62 is located on the side of the locking block 7 close to the bow wire groove 11. Thus, when the lock cover 2 slides in the sliding groove 12, the bow wire groove 11 is in a stable open state when the end of the elastic column 41 is in the unlocking position 61, and the bow wire groove 11 is in a stable closed state when the end of the elastic column 41 is in the locking position 62.

[0050] Reference Figure 2 and Figure 3 A first mounting hole 22 is provided on the side of the lock cover 2 away from the bottom of the sliding groove 12 and corresponding to the position of the elastic element 4. The first mounting hole 22 is connected to the mounting groove 5. A cover plate 23 is snapped into the lock cover 2 at the first mounting hole 22. The side of the cover plate 23 facing the mounting groove 5 is adapted to the elastic element 4. Thus, the elastic element 4 can be inserted from the first mounting hole 22 until it is snapped into the mounting groove 5 and the installation is completed. Then, the cover plate 23 is snapped into the first mounting hole 22 and the cover plate 23 and the lock cover 2 are spot welded together by a spot welding machine to fix the elastic element 4 in place in the mounting groove 5.

[0051] Reference Figure 1The bracket body 1 has a latching groove 14 at the slot opening near the bow wire groove 11 and directly opposite the lock cover 2. The lock cover 2 has an integrally formed force block 24 on the side away from the bottom of the sliding groove 12 and near the latching groove 14. So when the lock cover 2 needs to be opened, a probe or other tool can be inserted into the latching groove 14 and the lock cover 2 can be opened with a little force.

[0052] The implementation principle of Example 1 is as follows: In use, the lock cover 2 is moved in the sliding groove 12 by a tool such as a probe. When the lock cover 2 moves away from the bow wire groove 11, the ends of the two elastic pins 41 are deformed in the sliding groove 6 by the guide surface 71 on the locking block 7 until the elastic pins 41 enter the unlocking position 61, thus unlocking the lock cover 2 and the bow wire can be taken out from the bow wire groove 11. When the lock cover 2 moves closer to the bow wire groove 11, the ends of the two elastic pins 41 are deformed in the sliding groove 6 by the guide surface 71 on the locking block 7 until the elastic pins 41 enter the locking position 62, thus locking the lock cover 2 and stabilizing the bow wire in the bow wire groove 11.

[0053] Example 2

[0054] Reference Figure 5 The difference between this embodiment and embodiment 1 is that the slide groove 6 at the bottom of the slide groove 12 is a single one, and the two locking blocks 7 are integrally formed on opposite sides of the slide groove 6. That is, the ends of the two elastic pillars 41 installed on the lock cover 2 slide on opposite sides of the slide groove 6.

[0055] Example 3

[0056] Reference Figure 6 , Figure 7 and Figure 8 The difference between this embodiment and embodiment 1 is that the mounting groove 5 is opened in the bracket body 1 and the mounting groove 5 is connected to the sliding groove 12. The locking block 51 is integrally formed and installed on the side of the bracket body 1 corresponding to the mounting groove 5 near the sliding groove 12. The elastic element 4 is snapped into the mounting groove 5 corresponding to the bracket body 1. The end of the elastic column 41 away from the connecting rod 42 extends out of the bracket body 1 and is located in the sliding groove 12.

[0057] Reference Figure 8 and Figure 9 The slide groove 6 is opened on the bottom side of the lock cover 2 facing the slide groove 12. The two locking blocks 7 are integrally formed and installed on the side of the lock cover 2 corresponding to the two slide grooves 6 that are close to each other. The unlocking position 61 is located on the side of the locking block 7 close to the bow wire groove 11, and the locking position 62 is located on the side of the locking block 7 away from the bow wire groove 11.

[0058] Reference Figure 7 and Figure 10The bracket body 1 has a second mounting hole 15 on the side near the base plate 3 and corresponding to the position of the elastic element 4. The second mounting hole 15 is connected to the mounting groove 5. The base plate 3 and the bracket body 1 are fixedly connected by spot welding. A pair of positioning grooves 16 are provided on the side of the bracket body 1 near the base plate 3. Positioning blocks 31 are integrally formed on the side of the base plate 3 near the bracket body 1 and corresponding to the positions of the positioning grooves 16. The positioning blocks 31 are engaged with the positioning grooves 16, thereby achieving initial positioning before spot welding and improving welding accuracy.

[0059] The implementation principle of Example 3 is the same as that of Example 1 of Example 1, and will not be repeated here.

[0060] Example 4

[0061] Reference Figure 11 The difference between this embodiment and embodiment 3 is that the slide groove 6 opened on the lock cover 2 is set as a single one, and the two locking blocks 7 are integrally formed on opposite sides of the slide groove 6, that is, the ends of the two elastic columns 41 installed on the bracket body 1 slide on opposite sides of the slide groove 6 respectively.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An orthodontic bracket, comprising a bracket body (1) and a locking cap (2), wherein a base plate (3) for bonding tooth surfaces is provided on one side of the bracket body (1), and an archwire groove (11) is provided on the other side of the bracket body (1), and a sliding groove (12) communicating with the archwire groove (11) is provided on the side of the bracket body (1), and the locking cap (2) is slidably installed on the bracket body (1) through the sliding groove (12), characterized in that, It also includes several elastic pillars (41), a sliding groove (6), and several locking blocks (7). The elastic pillars (41) are spaced apart in a direction perpendicular to the sliding direction of the lock cover (2). One end of each elastic pillar (41) is slidably installed in the sliding groove (6) in the direction of the sliding direction of the lock cover (2). The locking blocks (7) are installed in the sliding groove (6). The locking blocks (7) are respectively arranged on the sliding path of each elastic pillar (41). The locking blocks (7) are provided with guide surfaces (71) on both sides of the sliding path of the elastic pillar (41). The locking blocks (7) divide the sliding groove (6) in the sliding direction of the lock cover (2) into an unlocked position (61) and a locked position (62). The end of the elastic column (41) away from the slide groove (6) is connected to the lock cover (2), and the slide groove (6) is opened at the bottom of the slide groove (12) of the support body (1); or: The end of the elastic column (41) away from the slide groove (6) is connected to the bottom of the slide groove (12) of the support body (1), and the slide groove (6) is opened on the side of the lock cover (2) facing the bottom of the slide groove (12).

2. The orthodontic bracket according to claim 1, characterized in that, A pair of elastic columns (41) are provided. The ends of the two elastic columns (41) away from the slide groove (6) are connected by a connecting rod (42) to form an elastic element (4). An installation groove (5) is provided in the lock cover (2) or the bracket body (1). The elastic element (4) is snapped into the installation groove (5). A locking block (51) is provided in the installation groove (5). The locking block (51) is located between the two elastic columns (41) and the connecting rod (42).

3. An orthodontic bracket according to claim 2, characterized in that, When the elastic element (4) is installed on the lock cover (2), the lock cover (2) is provided with a first mounting hole (22) connected to the mounting groove (5) on the side away from the bottom of the sliding groove (12) and corresponding to the position of the elastic element (4), and a cover plate (23) is snapped into the lock cover (2) at the first mounting hole (22).

4. An orthodontic bracket according to claim 2, characterized in that, When the elastic element (4) is installed on the bracket body (1), the bracket body (1) has a second mounting hole (15) on the side close to the base plate (3) and corresponding to the position of the elastic element (4), which is connected to the mounting groove (5).

5. An orthodontic bracket according to claim 4, characterized in that, The bracket (1) has several positioning grooves (16) on the side near the base plate (3). The base plate (3) has positioning blocks (31) on the side near the bracket (1) and at the positions corresponding to the positioning grooves (16). The positioning blocks (31) are engaged with the positioning grooves (16).

6. An orthodontic bracket according to claim 2, characterized in that, The grooves (6) are provided at the positions of the two elastic columns (41), and the two locking blocks (7) are respectively located on the side of the two grooves (6) that are close to each other.

7. An orthodontic bracket according to claim 2, characterized in that, The slide (6) is a single one, and the two locking blocks (7) are respectively located on opposite sides of the slide (6).

8. An orthodontic bracket according to claim 1, characterized in that, The bracket body (1) has limit grooves (13) on both sides of the bottom of the sliding groove (12), and the locking cover (2) has limit blocks (21) on both sides. The limit blocks (21) are slidably installed on the bracket body (1) through the limit grooves (13).

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