Self-ligating bracket
By using elastic components composed of locking posts and elastic rods in the self-locking bracket, combined with the design of the sliding groove assembly, the problem of the existing self-locking bracket being unsolid after long-term use is solved, and the locking plate is effectively locked and prevented from falling off.
Patent Information
- Application Number
- CN202421733236.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The existing self-locking brackets are prone to problems such as unsolid locking and falling off the lock plate after long-term use.
The self-locking bracket design is adopted, including a parent body, an elastic assembly and a locking plate. The elastic assembly is composed of a locking post and an elastic rod. The locking post is self-locking and opening of the locking post through the cooperation of the locking post, sliding groove assembly and the elastic rod.
It realizes good retention of the lock plate in the closed or open position, ensuring that the lock plate is effectively locked and does not fall off when opened, and has a simple structure and convenient operation.
Smart Images
Figure CN222955544U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of brackets for orthodontics and relates to self-locking brackets. Background Art
[0002] In orthodontic treatment, brackets are the most commonly used components. At present, various self-locking brackets have been widely used in clinical applications. The appearance of self-locking brackets has greatly facilitated the locking of arch wires by clinicians. However, at present, the self-locking structures of many self-locking brackets are complex, and problems such as insecure locking and shedding of the locking pieces are likely to occur after long-term use. Summary of the Invention
[0003] The utility model provides a self-locking bracket to overcome at least one of the deficiencies of the prior art.
[0004] To achieve the above object, the utility model adopts the following technical solutions: a self-locking bracket, comprising a base body, an elastic component and a locking piece. The base body is provided with a locking groove. The elastic component is installed in the locking groove. The elastic component includes an elastic rod and a locking column. The locking piece is provided with a sliding groove component. The locking columns correspond to the sliding groove components one by one. Both ends of the locking column are respectively in contact with the sliding groove component and the elastic rod. The locking piece is self-locked or opened through the cooperation of the locking column, the sliding groove component and the elastic rod.
[0005] Further, the locking groove includes a locking column cavity and an elastic rod cavity. The locking column is movably arranged in the locking column cavity. The elastic rod is located in the elastic rod cavity. The locking column cavity and the elastic rod cavity are communicated. The locking column and the elastic rod are kept in contact.
[0006] Further, the base body is further provided with an elastic rebound cavity. The elastic rebound cavity is located below the elastic rod cavity and is communicated with the elastic rod cavity. The deformed end of the elastic rod faces the elastic rebound cavity.
[0007] Further, a boss is arranged between the elastic rod cavity and the elastic rebound cavity. Both ends of the elastic rod are placed on the boss.
[0008] Further, the sliding groove component includes a first moving groove and a second moving groove. There is a height difference between the first moving groove and the second moving groove. The height of the first moving groove is less than the height of the second moving groove.
[0009] Further, a first limiting block is arranged between the first moving groove and the second moving groove. The end face of the first limiting block opposite to the second moving groove is an arc surface.
[0010] Further, the base 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 dimensions of the locking column cavity and the elastic rod cavity in the height direction are the same. The elastic rod cavity is communicated with the installation cavity.
[0011] Further, the ejector rod cavity is a blind hole, and the ejector rod cavity and the locking post cavity form a T-shaped structure. One end of the locking post cavity communicates with the installation cavity, and the other end of the locking post cavity communicates with the ejector rod cavity. The two ends of the ejector rod cavity are respectively an open end and a closed end. The open end communicates with the outside of the parent body, and the closed end is in interference fit with the ejector rod.
[0012] Further, the ejector rod cavity is a through hole, and both ends of the ejector rod cavity are open ends, which communicate with the outside of the parent body. The length of the ejector rod cavity is the same as the length of the ejector rod. Any open end and the ejector rod located therein are fixed by laser welding.
[0013] Further, the ejector rod is of a concave structure. The ejector rod includes a deformation rod and a support rod. The support rods are fixedly arranged at both ends of the deformation rod. The support rods are placed at the bottom end of the elastic rebound cavity, and the deformation rod is in contact with the locking post.
[0014] In summary, the beneficial effects of the present utility model are as follows:
[0015] The self-locking bracket of the present utility model has an elastic component in the form of a snap formed by a locking post and an ejector rod, realizing the opening and self-locking of the locking piece. The structure is simple and the operation is convenient. The locking piece is slidably connected to the parent body, ensuring good retention of the locking piece in the closed position or the open position, so that the locking piece is effectively locked and will not fall off even when the locking piece is in the open state. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic assembly diagram of the self-locking bracket in the first embodiment of the present utility model.
[0017] Figure 2 It is a schematic exploded view of the self-locking bracket in the first embodiment of the present utility model.
[0018] Figure 3 It is a schematic self-locking diagram of the self-locking bracket in the first embodiment of the present utility model.
[0019] Figure 4 is Figure 3 The sectional view taken along A-A in
[0020] Figure 5 It is a schematic self-locking diagram of the self-locking bracket in the first embodiment of the present utility model.
[0021] Figure 6 is Figure 5 The sectional view taken along B-B in
[0022] Figure 7 It is a schematic opening diagram of the self-locking bracket in the first embodiment of the present utility model.
[0023] Figure 8 is Figure 7 The sectional view taken along C-C in
[0024] Figure 9 Schematic diagram of the opening of the self-locking bracket in the first embodiment of the present utility model.
[0025] Figure 10 is Figure 9 the sectional view taken along D-D in
[0026] Figure 11 Sectional view of the self-locking bracket in the second embodiment of the present utility model.
[0027] Figure 12 Sectional view of the self-locking bracket in the third embodiment of the present utility model.
[0028] Figure 13 Schematic diagram of the elastic rod in the fourth embodiment of the present utility model.
[0029] Figure 14 Sectional view of the opening of the self-locking bracket in the fourth embodiment of the present utility model.
[0030] Figure 15 Sectional view of the self-locking of the self-locking bracket in the fourth embodiment of the present utility model. Specific embodiments
[0031] The following illustrates the embodiments of the present utility model through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.
[0032] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present utility model in a schematic manner. Therefore, only the components related to the present utility model are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.
[0033] All the directional indications (such as up, down, left, right, front, back, horizontal, vertical...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0034] Due to reasons such as installation errors, the parallel relationship referred to in the embodiments of the present utility model may actually be an approximate parallel relationship, and the perpendicular relationship may actually be an approximate perpendicular relationship.
[0035] Embodiment 1:
[0036] As shown Figures 1 - 10 in the figure, the self-locking bracket includes a base body 1, an elastic component, and a locking piece 3. The base body 1 is provided with a locking groove 12, the elastic component is installed in the locking groove 12, and the elastic component self-locks the locking piece 3 on the base body 1. The elastic component includes a locking post 21 and a spring rod 22, and both ends of the locking post 21 are in contact with the locking piece 3 and the spring rod 22 respectively.
[0037] 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 base body 1, and the release of the self-locking of the elastic component and the locking piece 3 is the opening of the locking piece 3 and the base body 1.
[0038] To facilitate the description of the orientation, an xyz coordinate system is established. The z direction is the up and down direction or the height direction, the y direction is the length direction, and the x direction is the width direction;
[0039] The base body 1 includes a first side portion 13 and a second side portion 14. An arch wire groove 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 sliding groove 142. The sliding groove 142 is located on both sides of the installation cavity 141 and communicates with the installation cavity 141. The locking piece 3 is installed in the installation cavity 141 and is slidably connected to the sliding groove 142. The locking piece 3 slides along the sliding groove 142 during the self-locking and the release of the self-locking and opening processes. At the same time, the movement of the locking piece 3 in the up and down direction is limited by the sliding groove 142, avoiding problems such as jitter and offset of the locking piece 3 during the movement, which affect the efficiency and quality of the self-locking and opening of the locking piece 3.
[0040] 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. There are two groups of stop positions 132, and 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 sliding grooves 142. When the locking piece 3 is in the self-locking state, the locking piece 3 slides along the sliding 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 piece 3 is located above the arch wire groove 11 and locks the arch wire located in the arch wire groove 11.
[0041] When the locking piece 3 is in the self-locking state, there is a gap between the avoidance position 131 and the locking piece 3. Using a tool, such as a flat-blade opening tool, place the tool in the gap and rotate it. One end of the tool abuts against the end wall of the avoidance position 131, and the other end abuts against the locking piece 3. Then apply force to open the locking piece 3.
[0042] The locking groove 12 is provided in the installation cavity 141 of the second side portion 14. The locking groove 12 is used to install the elastic component. The locking groove 12 is integrally formed with the base body 1. The locking groove 12 includes a locking post cavity 121 and a spring rod cavity 122. The locking post cavity 121 communicates with the installation cavity 141. The locking post 21 is arranged in the locking post cavity 121 and can slide up and down along the locking post cavity 121. The spring rod 22 is located in the spring rod cavity 122. The locking post cavity 121 and the spring rod cavity 122 communicate, so that the locking post 21 and the spring rod 22 remain in contact.
[0043] In this embodiment, the dimensions of the locking post cavity 121 and the spring rod cavity 122 in the height direction are the same. The spring rod cavity 122 communicates with the installation cavity 141, and the spring rod 22 is placed into the spring rod cavity 122 from the position of the installation cavity 141.
[0044] The locking post 21 and the spring rod 22 can be of a split structure. First, the spring rod 22 is placed into the spring rod cavity 122, and then the locking post 21 is placed into the locking post cavity 121. It is only necessary for the bottom end of the locking post 21 to contact the spring rod 22. Or the locking post 21 and the spring rod 22 are of an integrally fixed structure, and the two form a T-shaped structure, and the T-shaped structure is placed into the locking groove 12.
[0045] In this embodiment, the locking post 21 is a rigid body, and the spring rod 22 is an elastic body. When the locking post 21 is pressed down, the spring rod 22 is stressed and bent to store energy. After the spring rod 22 releases energy, it can push the locking post 21 to move upward.
[0046] The second side portion 14 is further provided with an elastic rebound cavity 143. The elastic rebound cavity 143 is located below the spring rod cavity 122 and communicates with the spring rod cavity 122. The elastic rebound cavity 143 is used to accommodate the downward bending deformation of the spring rod 22 when it is stressed.
[0047] In this embodiment, in the length direction, the dimension of the spring rod cavity 122 is larger than that of the elastic rebound cavity 143. A stepped boss 144 is formed between the two. The two ends of the spring rod 22 are placed on the boss 144, and the boss 144 supports it. When the spring rod 22 is stressed, the middle part thereof bends towards the elastic rebound cavity 143.
[0048] Sliders 31 are fixedly provided on both sides of the locking piece 3. The sliders 31 are slidably connected to the sliding grooves 142. A sliding groove assembly is fixedly provided on the side of the locking piece 3 facing the base body 1. The locking post 21 moves within the sliding groove assembly. The sliding groove assembly includes a first moving groove 32 and a second moving groove 33. There is a height difference between the first moving groove 32 and the second moving groove 33. The height of the first moving groove 32 is less than the height of the second moving groove 33. The height difference and the spring rod 22 are used to realize the up and down movement of the locking post 21.
[0049] A first limiting block 34 is provided between the first moving groove 32 and the second moving groove 33. The end face of the first limiting block 34 opposite to the second moving groove 33 is an arc surface. Under the action of force, the locking column 21 can slide from the second moving groove 33 along the arc surface to the first moving groove 32. At one end of the first moving groove 32 away from the second moving groove 33, a second limiting block 35 is provided. When the lock piece 3 is in the open state, the elastic part 21 is located in the first moving groove 32 and abuts against the second limiting block 35. When the lock piece 3 is self-locked, slide the lock piece 3 along the arrow a direction. The locking column 21 moves along the first moving groove 32 to the second moving groove 33 and abuts against the first limiting block 34 to realize the self-locking of the lock piece 3. During this process, the locking column 21 moves upward under the restoring force of the elastic rod 22. When the lock piece 3 is opened, drive the lock piece 3 along the arrow b direction. The locking column 21 breaks through the first limiting block 34 and moves along the second moving groove 33 to the first moving groove 32 and abuts against the second limiting block 35 to realize the opening of the lock piece 3. During this process, the locking column 21 moves downward under the downward pressure of the lock piece 3, and the locking column 21 presses down on the elastic rod 22, causing the elastic rod 22 to be bent under force.
[0050] Embodiment 2:
[0051] As Figure 11 shown, the difference between this embodiment and Embodiment 1 is that in Embodiment 1, the dimensions of the locking column cavity 121 and the elastic rod cavity 122 in the height direction are the same, and the elastic rod cavity 122 communicates with the installation cavity 141. The elastic rod 22 is placed into the elastic rod cavity 122 from the position of the installation cavity 141. In this embodiment, the elastic rod cavity 122 is a blind hole. The elastic rod cavity 122 and the locking column cavity 121 form a T-shaped structure. One end of the locking column cavity 121 communicates with the installation cavity 141, and the other end of the locking column cavity 121 communicates with the elastic rod cavity 122. The elastic rod 22 is placed into the elastic rod cavity 122 from the side of the parent body 1.
[0052] Both ends of the elastic rod cavity 122 are an open end and a closed end respectively. The open end communicates with the outside of the parent body 1. The elastic rod 22 extends into the parent body 1 along the open end and abuts against the closed end. The inner diameter dimension of the closed end is smaller than the outer diameter dimension of the elastic rod 22. The closed end and the elastic rod 22 are in interference fit to realize the extrusion fixation of the elastic rod 22.
[0053] Embodiment 3:
[0054] As Figure 12As shown in the figure, the difference between this embodiment and the second embodiment is that in the second embodiment, the ejector rod cavity 122 is a blind hole, with the two ends of the ejector rod cavity 122 being an open end and a closed end respectively, and the closed end is in interference fit with the ejector rod 22. While in this embodiment, the ejector rod cavity 122 is a through hole, with both ends of the ejector rod cavity 122 being open ends, and the open ends communicate with the outside of the base body 1. The length of the ejector rod cavity 122 is the same as the length of the ejector rod 22. The ejector rod 22 extends into from any one of the open ends and extends out from the other open end. Any one of the open ends and the ejector rod 22 located inside it are fixed by laser welding, thereby realizing the fixation of the ejector rod 22.
[0055] Embodiment Four:
[0056] As Figures 13 - 15 shown in the figure, the difference between this embodiment and the first embodiment is that in the first embodiment, the ejector rod 22 has a straight rod structure, and the base body 1 is provided with a boss to carry the ejector rod 22. While in this embodiment, the ejector rod 22 has a concave structure.
[0057] The ejector rod 22 includes a deformed rod 221 and a support rod 222. The support rods 222 are fixedly arranged at both ends of the deformed rod 221. The support rods 222 support the deformed rod 221, and the deformed rod 221 and the two groups of support rods 222 form a concave structure.
[0058] The dimensions of the ejector rod cavity 122 and the elastic rebound cavity 143 in the length direction are the same.
[0059] The support rods 222 are placed at the bottom end of the elastic rebound cavity 143, and the deformed rod 221 is in contact with the locking column 21.
[0060] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
Claims
1. Self-ligating bracket, 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 is installed in the locking groove. The elastic component includes a spring rod and a locking column. The locking piece is provided with a sliding groove component. The locking column corresponds to the sliding groove component one by one. The two ends of the locking column are respectively contacted with the sliding groove component and the spring rod. The locking piece is self-locked or opened through the cooperation of the locking column, the sliding groove component and the spring rod.
2. The self-ligating bracket 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 self-ligating bracket 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 self-ligating bracket according to claim 3, characterized in that: A boss is arranged between the spring rod cavity and the elastic rebound cavity, and two ends of the spring rod are placed on the boss.
5. The self-ligating bracket according to claim 1, 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.
6. The self-ligating bracket according to claim 5, 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.
7. The self-ligating bracket 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.
8. The self-ligating bracket according to claim 2, characterized in that: The elastic rod cavity is set as a blind hole, and the elastic rod cavity and the lock column cavity form a T-shaped structure. One end of the lock column cavity is connected to the installation cavity, and the other end of the lock column cavity is connected to the elastic rod cavity. The two ends of the elastic rod cavity are respectively an open end and a closed end. The open end is connected to the outside of the mother body, and the closed end is interference fit with the elastic rod.
9. The self-ligating bracket according to claim 2, characterized in that: The elastic rod cavity is set as a through hole, both ends of the elastic rod cavity are open ends, the open ends are connected to the outside of the mother body, the length of the elastic rod cavity is the same as the length of the elastic rod, and any open end and the elastic rod located therein are fixed by laser welding.
10. The self-ligating bracket according to claim 3, characterized in that: The spring rod is a concave structure, comprising a deformable rod and a support rod, the support rod being fixed at both ends of the deformable rod, the support rod being placed at the bottom end of the elastic rebound cavity, and the deformable rod being arranged in contact with the locking column.