Orthodontic bracket with self-locking structure

Abstract

The orthodontic bracket with the self-locking structure comprises a parent body, an elastic assembly and a locking plate, the parent body is provided with a locking groove, the elastic assembly comprises an elastic rod and two locking columns, the locking groove is provided with an elastic rod bridging platform, the elastic rod comprises a supporting end and deformation ends arranged on the two sides of the supporting end, the supporting end is arranged on the elastic rod bridging platform, and the locking plate is arranged on the elastic rod bridging platform. The orthodontic bracket with the self-locking structure has the advantages that the orthodontic bracket with the self-locking structure is provided with the elastic buckle type elastic component consisting of the lock columns and the elastic rod, the locking plate can be unlocked and self-locked, the orthodontic bracket is simple in structure and convenient to operate, and the orthodontic bracket is convenient to use and high in practicability. The locking plate is connected with the parent body in a sliding mode, it is guaranteed that the locking plate is well fixed at the closing position or the opening position, and therefore the locking plate is effectively locked and cannot fall off when the locking plate is in the opening state.

Description

Technical Field

[0001] The utility model belongs to the field of tooth orthodontic brackets and relates to an orthodontic bracket with a self-locking structure. Background Art

[0002] Brackets are the most commonly used components in orthodontic treatment. Various orthodontic brackets with self-locking structures have been widely used in clinical applications. The emergence of orthodontic brackets with self-locking structures has greatly facilitated clinicians to lock the archwire. However, many orthodontic brackets with self-locking structures currently have complex self-locking structures, and are prone to problems such as loose locking and falling off of the locking piece after long-term use. Summary of the invention

[0003] In order to overcome at least one deficiency of the prior art, the utility model provides an orthodontic bracket with a self-locking structure.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an orthodontic bracket with a self-locking structure includes a mother body, an elastic component and a locking plate, the mother body is provided with a locking groove, the elastic component includes a spring rod and two locking columns, the locking groove is provided with a spring rod mounting platform, the spring rod includes a supporting end and a deformation end arranged on both sides of the supporting end, the supporting end is arranged on the spring rod mounting platform, the two locking columns are respectively arranged in contact with the deformation end and the locking plate, and the locking plate is self-locked or opened through the cooperation of the locking column, the locking plate and the deformation end.

[0005] Furthermore, the lock slot includes a lock column cavity and an elastic rod cavity, the lock column is movably arranged in the lock column cavity, the elastic rod is located in the elastic rod cavity, the lock column cavity and the elastic rod cavity are connected, and the lock column maintains contact with the elastic rod.

[0006] Furthermore, the mother body is also provided with an elastic rebound cavity, which is located below the elastic rod cavity and is communicated with the elastic rod cavity, and the deformed end of the elastic rod is opposite to the elastic rebound cavity.

[0007] Furthermore, the elastic rod mounting platform is fixedly arranged in the elastic rebound cavity.

[0008] Furthermore, two sliding slot assemblies are fixedly provided on the side of the locking piece facing the mother body, and two locking posts are respectively arranged on the two sliding slot assemblies, the locking posts correspond to the sliding slot assemblies one by one, and the two ends of a locking post are respectively arranged in contact with the deformation end and the sliding slot assembly.

[0009] Furthermore, the sliding groove assembly includes a first movable groove and a second movable groove, and a height difference is provided between the first movable groove and the second movable groove, and the height of the first movable groove is smaller than the height of the second movable groove.

[0010] Furthermore, a first limiting block is provided between the first moving groove and the second moving groove, and an end surface of the first limiting block opposite to the second moving groove is an arc surface.

[0011] Further, the mother body is provided with an installation cavity, the lock piece is slidably arranged in the installation cavity, the lock column cavity is connected with the installation cavity, the lock column cavity and the spring rod cavity have the same size in the height direction, and the spring rod cavity is connected with the installation cavity.

[0012] In summary, the utility model is beneficial in that:

[0013] The orthodontic bracket with a self-locking structure of the utility model has a snap-on elastic component composed of a locking column and a spring rod, which realizes the opening and self-locking of the locking plate. The structure is simple and the operation is convenient. The locking plate is slidably connected to the mother body to ensure that the locking plate is well fixed in the closed position or the open position, so that the locking plate is effectively locked and will not fall off when the locking plate is in the open state. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the assembly of an orthodontic bracket with a self-locking structure according to Embodiment 1 of the utility model.

[0015] Figure 2 This is a schematic diagram of an orthodontic bracket with a self-locking structure according to a first embodiment of the utility model.

[0016] Figure 3 This is a schematic diagram of the self-locking of an orthodontic bracket with a self-locking structure according to the first embodiment of the utility model.

[0017] Figure 4 for Figure 3 Cross-section view of AA.

[0018] Figure 5 This is a schematic diagram of the self-locking of an orthodontic bracket with a self-locking structure according to the first embodiment of the utility model.

[0019] Figure 6 for Figure 5 Cross-section of the BB.

[0020] Figure 7 This is a schematic diagram of opening an orthodontic bracket with a self-locking structure according to Embodiment 1 of the utility model.

[0021] Figure 8 for Figure 7 Cross-section of CC.

[0022] Fig. 9 This is a schematic diagram of opening an orthodontic bracket with a self-locking structure according to Embodiment 1 of the utility model.

[0023] Fig.10 for Fig. 9 Cross-section of DD. DETAILED DESCRIPTION

[0024] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0025] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0026] All directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, horizontal, vertical...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0027] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the present invention may actually be an approximately parallel relationship, and the vertical relationship may actually be an approximately vertical relationship.

[0028] Embodiment 1:

[0029] like Figure 1-Figure 10 As shown, an orthodontic bracket with a self-locking structure includes a mother body 1, an elastic component and a locking piece 3. The mother body 1 is provided with a locking groove 12, and the elastic component is installed in the locking groove 12. The elastic component self-locks the locking piece 3 on the mother body 1. The elastic component includes a spring rod 22 and two locking columns 21. The locking groove 12 is provided with a spring rod mounting platform 144. The spring rod 22 includes a supporting end 221 and a deformation end 222 arranged on both sides of the supporting end 221. The supporting end 221 is arranged on the spring rod mounting platform 144. The two locking columns 21 are respectively arranged in contact with the deformation end 222 and the locking piece 3. The locking piece is self-locked or opened by the cooperation of the locking column, the locking piece 3 and the deformation end 222.

[0030] In this embodiment, the self-locking of the elastic component and the locking piece 3 is the closing of the locking piece 3 and the mother body 1 , and the releasing of the self-locking of the elastic component and the locking piece 3 is the opening of the locking piece 3 and the mother body 1 .

[0031] To facilitate the description of orientation, an xyz coordinate system is established, where the z direction is the up-down direction or height direction, the y direction is the length direction, and the x direction is the width direction;

[0032] The mother body 1 includes a first side portion 13 and a second side portion 14, an archwire slot 11 is provided between the first side portion 13 and the second side portion 14, the second side portion 14 is provided with an installation cavity 141 and a slide groove 142, the slide groove 142 is located on both sides of the installation cavity 141 and is connected to the installation cavity 141, the locking plate 3 is installed in the installation cavity 141, and is slidably connected to the slide groove 142, the locking plate 3 slides along the slide groove 142 during the self-locking and self-locking opening process, and the slide groove 142 is used to limit the movement of the locking plate 3 in the up and down directions, so as to avoid shaking, deviation and other problems of the locking plate 3 during the movement, which affect the efficiency and quality of the self-locking and opening of the locking plate 3.

[0033] The first side portion 13 is provided with an avoidance position 131 and a stop position 132. The avoidance position 131 is opposite to the installation cavity 141. The stop position 132 is provided with two groups. The two groups of stop positions 132 are respectively located on both sides of the avoidance position 131. The two groups of stop positions 132 are respectively opposite to the two groups of slide grooves 142. When the locking plate 3 is in the self-locking state, the locking plate 3 slides along the slide groove 142 until it slides to the stop position 132 and abuts against the end wall of the stop position 132. At this time, the locking plate 3 is located above the archwire slot 11 and locks the archwire located in the archwire slot 11.

[0034] When the locking plate 3 is in the self-locking state, there is a gap between the avoidance position 131 and the locking plate 3. Use a tool, such as a straight-shaped opening tool, place the tool in the gap and rotate it. One end of the tool presses against the end wall of the avoidance position 131, and the other end presses against the locking plate 3. Then apply force to open the locking plate 3.

[0035] The lock slot 12 is arranged in the installation cavity 141 of the second side portion 14. The lock slot 12 is used to install the elastic component. The lock slot 12 is integrally formed with the mother body 1. The lock slot 12 includes a lock column cavity 121, a spring rod cavity 122 and an elastic rebound cavity 143. The lock column cavity 121 is connected to the installation cavity 141. The lock column 21 is arranged in the lock column cavity 121 and can slide up and down along the lock column cavity 121. The spring rod 22 is located in the spring rod cavity 122. The lock column cavity 121 and the spring rod cavity 122 are connected, so that the lock column 21 maintains contact with the spring rod 22. The elastic rebound cavity 143 is located below the spring rod cavity 122 and is connected to the spring rod cavity 122. The elastic rebound cavity 143 is opposite to the deformation end 222. The elastic rebound cavity 143 is used to accommodate the downward bending deformation of the deformation end 222 due to force.

[0036] In this embodiment, the lock column cavity 121 and the spring rod cavity 122 have the same height dimensions, the spring rod cavity 122 is connected to the installation cavity 141 , and the spring rod 22 is placed into the spring rod cavity 122 from the installation cavity 141 .

[0037] The lock column 21 and the elastic rod 22 can be a separate structure. The elastic rod 22 is first placed in the elastic rod cavity 122, and then the lock column 21 is placed in the lock column cavity 121, and the bottom end of the lock column 21 contacts the elastic rod 22. Alternatively, the lock column 21 and the elastic rod 22 are an integrated fixed structure, and the two form a π-shaped structure, which can be placed in the lock slot 12.

[0038] In this embodiment, the lock column 21 is a rigid body, and the elastic rod 22 is an elastic body. The lock column 21 is pressed downward to cause the deformed end 222 to bend and store energy. After the deformed end 222 releases the energy, it can push the lock column 21 to move upward.

[0039] The spring rod mounting platform 144 is fixedly disposed in the middle of the elastic rebound chamber 143 , and the spring rod mounting platform 144 supports the supporting end 221 upward. The deformable ends 222 are located at both sides of the spring rod mounting platform 144 . The spring rod mounting platform 144 divides the elastic rebound chamber 143 into two left and right parts, and the two deformable ends 222 are respectively opposite to the elastic rebound chamber 143 .

[0040] The boss 144 supports the elastic rod 22, and the middle of the elastic rod 22 bends toward the elastic rebound cavity 143 after the elastic rod 22 is stressed.

[0041] Slide blocks 31 are fixedly provided on both sides of the locking plate 3, and the slide blocks 31 are slidably connected with the slide grooves 142. Two slide groove assemblies are fixedly provided on the side of the locking plate 3 facing the mother body 1. Two lock columns 21 are arranged in the two slide groove assemblies. The lock columns 21 correspond to the slide groove assemblies one by one. The two ends of a lock column 21 are respectively contacted with the deformation end 222 and the slide groove assembly. The lock column 21 moves in the slide groove assembly. The slide groove assembly includes a first moving groove 32 and a second moving groove 33. The first moving groove 32 and the second moving groove 33 are provided with a height difference. The height of the first moving groove 32 is less than the height of the second moving groove 33. The movement of the lock column 21 in the up and down directions is realized by the height difference and the elastic rod 22.

[0042] A first limiting block 34 is provided between the first movable groove 32 and the second movable groove 33, and the end surface of the first limiting block 34 opposite to the second movable groove 33 is an arc surface. Under the action of force, the lock column 21 can slide from the second movable groove 33 along the arc surface to the first movable groove 32; a second limiting block 35 is provided at one end of the first movable groove 32 away from the second movable groove 33. When the locking plate 3 is in the open state, the elastic portion 21 is located in the first movable groove 32 and abuts against the second limiting block 35. When the locking plate 3 is self-locking, the locking plate 3 slides in the direction of arrow a, and the lock column 21 moves along the first movable groove 32. A movable groove 32 moves to the second movable groove 33 and abuts against the first limiting block 34 to achieve self-locking of the locking plate 3. During this process, the deformed end 222 releases energy to drive the lock column 21 to move upward. When the locking plate 3 is opened, the locking plate 3 is driven in the direction of arrow b. The lock column 21 breaks through the first limiting block 34 and moves along the second movable groove 33 to the first movable groove 32 and abuts against the second limiting block 35 to achieve opening of the locking plate 3. During this process, the lock column 21 moves downward under the downward pressure of the locking plate 3. The lock column 21 presses down on the deformed end 222, causing the deformed end 222 to bend under force and store energy.

[0043] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. Orthodontic bracket with self-locking structure, characterized by: It includes a mother body, an elastic component and a locking piece. The mother body is provided with a locking groove. The elastic component includes a spring rod and two locking columns. The locking groove is provided with a spring rod mounting platform. The spring rod includes a supporting end and a deformation end arranged on both sides of the supporting end. The supporting end is arranged on the spring rod mounting platform. The two locking columns are respectively arranged to contact the deformation end and the locking piece. The locking piece is self-locked or opened through the cooperation of the locking column, the locking piece and the deformation end.

2. The orthodontic bracket with a self-locking structure according to claim 1, characterized in that: The lock slot comprises a lock column cavity and an elastic rod cavity, the lock column is movably arranged in the lock column cavity, the elastic rod is located in the elastic rod cavity, the lock column cavity and the elastic rod cavity are communicated, and the lock column keeps in contact with the elastic rod.

3. The orthodontic bracket with a self-locking structure according to claim 2, characterized in that: The mother body is also provided with an elastic rebound cavity, which is located below the elastic rod cavity and communicated with the elastic rod cavity, and the deformed end of the elastic rod is opposite to the elastic rebound cavity.

4. The orthodontic bracket with a self-locking structure according to claim 3, characterized in that: The elastic rod support platform is fixed in the elastic rebound cavity.

5. The orthodontic bracket with a self-locking structure according to claim 1, characterized in that: Two sliding slot assemblies are fixedly arranged on the side of the locking piece facing the mother body, and two locking posts are respectively arranged in the two sliding slot assemblies, the locking posts correspond to the sliding slot assemblies one by one, and the two ends of one locking post are respectively arranged in contact with the deformation end and the sliding slot assembly.

6. The orthodontic bracket with a self-locking structure according to claim 5, characterized in that: The sliding groove assembly comprises a first moving groove and a second moving groove, wherein a height difference is provided between the first moving groove and the second moving groove, and the height of the first moving groove is smaller than the height of the second moving groove.

7. The orthodontic bracket with a self-locking structure according to claim 6, characterized in that: A first limiting block is provided between the first moving groove and the second moving groove, and an end surface of the first limiting block opposite to the second moving groove is an arc surface.

8. The orthodontic bracket with a self-locking structure according to claim 2, characterized in that: The mother body is provided with an installation cavity, the locking piece is slidably arranged in the installation cavity, the locking column cavity is communicated with the installation cavity, the locking column cavity and the elastic rod cavity have the same size in the height direction, and the elastic rod cavity is communicated with the installation cavity.

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