Improved elastic groove self-ligating bracket

Abstract

The utility model discloses an improved elastic groove self-ligating bracket which comprises a base plate, a bracket matrix and a sliding locking plate, the bracket matrix is provided with an arch wire groove for accommodating a correction arch wire, and the bracket matrix is divided into a first working wing and a second working wing by the arch wire groove; the first working wing or the second working wing is provided with a sliding groove for containing the sliding locking plate, and the sliding locking plate slides in the sliding groove to close or open the arch wire groove. A closed lock groove is formed in the bottom face of the sliding groove and extends in the length direction of the sliding groove. The two side walls, extending in the length direction of the sliding groove, of the locking groove can deform under the action of external force. A positioning tail end protruding out of the lower surface of the sliding locking plate is arranged on the lower surface of the sliding locking plate, and the positioning tail end is located in the locking groove and matched with the locking groove. The bracket disclosed by the utility model has the advantages of compact structure, accuracy in positioning, convenience in operation and the like, and better meets the clinical application requirements.

Description

Technical Field

[0001] This utility model relates to the field of orthodontic instruments, specifically to an improved elastic groove self-locking bracket. Background Technology

[0002] In orthodontic treatment, orthodontic brackets are typically attached to the tooth surface, and the orthodontic archwire is placed within the archwire slots of the brackets to transmit corrective forces and achieve the desired tooth movement. Traditional orthodontic brackets require ligatures or rubber bands to secure the archwire within the bracket. This ligation method is cumbersome and puts significant pressure on the archwire, affecting its normal movement and thus impacting the orthodontic outcome. To address this issue, self-ligating bracket designs have emerged in recent years.

[0003] For example, the Chinese utility model patent publication number CN213588544U, entitled "A Self-Locking Support with an Elastic Groove," discloses a self-locking support with an elastic groove. However, because the locking groove through-hole of the aforementioned self-locking support with an elastic groove is open, when the locking piece positioning block is located at the opening of the locking groove through-hole, it is easy to be unstable in positioning, that is, the locking piece positioning block cannot be well clamped and positioned by the elastic groove. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, this utility model provides an improved elastic groove self-locking bracket with more stable elastic groove clamping and positioning.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An improved self-locking bracket with an elastic groove includes a base plate, a bracket body, and a sliding locking piece. The bracket body has an archwire groove for accommodating the orthodontic archwire, which divides the bracket body into a first working wing and a second working wing. A groove for accommodating the sliding locking piece is provided on either the first or second working wing. The sliding locking piece slides within the groove to close or open the archwire groove. A closed locking groove is formed on the bottom surface of the groove, extending along its length. The two side walls of the locking groove extending along its length can deform under external force. A positioning end protruding from the lower surface of the sliding locking piece is provided on its lower surface, and the positioning end is located within the locking groove and engages with it.

[0007] The improved elastic groove self-locking bracket has a locking hole and an unlocking hole at both ends of the locking groove. The locking hole is located at the end closer to the bow wire groove, and the unlocking hole is located at the end away from the bow wire groove.

[0008] The improved elastic groove self-locking bracket has a first deformation groove and a second deformation groove arranged parallel to each other on both sides of the locking groove. The first deformation groove and the portion adjacent to the locking groove form a first deformation sidewall; the second deformation groove and the portion adjacent to the locking groove form a second deformation sidewall; the first deformation sidewall and the second deformation sidewall are elastic.

[0009] In the aforementioned improved elastic groove self-locking bracket, the sliding lock piece is provided with a positioning hole, and a positioning pin is provided in the positioning hole. The end of the positioning pin forms a positioning end located on the lower surface of the sliding lock piece, and the end of the positioning pin extends into the lock groove.

[0010] In the aforementioned improved elastic groove self-locking bracket, the parent body portion below the locking groove, the first deformation groove, and the second deformation groove is provided with a hollowed-out groove, so that the locking groove, the first deformation groove, and the second deformation groove are in a through-type manner.

[0011] The improved elastic groove self-locking bracket has an opening at the end of the unlocking hole away from the bow wire groove.

[0012] The improved elastic groove self-locking support groove described above has arc-shaped concave surfaces at both ends of the bow wire groove.

[0013] The improved elastic groove self-locking support described above has an arc-shaped groove extending along the length of the bow wire groove on the bottom surface of the bow wire groove.

[0014] In summary, the advantages of this utility model are as follows:

[0015] The improved elastic groove self-locking bracket of this utility model has the following technical effects:

[0016] 1. The locking groove of the self-locking elastic groove of this utility model adopts a closed or nearly closed design, which, together with the locking holes and unlocking holes at both ends, provides a stable movement trajectory for the positioning pin. This ensures that the sliding locking piece can be stably positioned in the locked state and the fully open state.

[0017] 2. The parallel arrangement of the first deformation groove and the second deformation groove in the self-locking elastic groove of this utility model enables the first deformation sidewall and the second deformation sidewall to produce symmetrical elastic deformation, ensuring the smooth movement of the positioning pin.

[0018] 3. The parent body portion below the locking groove, the first deformation groove, and the second deformation groove of the elastic groove self-locking bracket of this utility model is provided with a hollowed-out groove. This arrangement makes the locking groove, the first deformation groove, and the second deformation groove interconnected, which has better elasticity and makes the locking groove fit more tightly with the positioning end.

[0019] 4. The two ends or bottom surface of the elastic groove self-locking bracket of this utility model are provided with arc-shaped concave surfaces or grooves along the length of the archwire groove, which is more conducive to the effective positioning of the archwire in the archwire groove. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the improved elastic groove self-locking bracket according to Embodiment 1 of this utility model.

[0021] Figure 2 for Figure 1 A schematic diagram of one side of the improved elastic groove self-locking bracket.

[0022] Figure 3 for Figure 1 Schematic diagram of the parent structure of the improved elastic groove self-locking bracket.

[0023] Figure 4 for Figure 1 Schematic diagram of the sliding locking plate structure of the improved elastic groove self-locking bracket.

[0024] Figure 5 for Figure 1 Schematic diagram of the positioning pin structure of the improved elastic groove self-locking bracket.

[0025] Figure 6 for Figure 1 A schematic diagram of the improved elastic groove self-locking bracket after the sliding locking piece is installed with the positioning pin.

[0026] Figure 7 for Figure 6 A schematic diagram of the CC cross-section.

[0027] Figure 8 for Figure 1 A top view of the improved elastic groove self-locking bracket in its closed state.

[0028] Figure 9 for Figure 8 A schematic diagram of the AA cross-section.

[0029] Figure 10 for Figure 1 A top view of the improved elastic groove self-locking bracket in its open state.

[0030] Figure 11 for Figure 10 BB cross-sectional diagram.

[0031] Figure 12 This is a schematic diagram of the bracket body structure in Example 2.

[0032] Figure 13 This is a schematic diagram of the bracket body structure in Example 3.

[0033] Figure 14 This is a schematic diagram of the bracket body structure in Example 4.

[0034] Figure 15This is a schematic diagram of the improved elastic groove self-locking bracket in Embodiment 5.

[0035] Figure 16 This is a schematic diagram of the bracket body structure in Example 5.

[0036] Figure 17 This is a schematic diagram of the sliding locking plate structure in Embodiment 5.

[0037] Figure 18 This is a cross-sectional structural diagram of the sliding lock plate after the positioning pin is installed in Example 5.

[0038] Figure 19 This is a schematic diagram of the bracket body structure in Example 6.

[0039] Figure 20 This is a side view of the bracket body in Example 6. Detailed Implementation

[0040] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0041] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0042] In this embodiment of the invention, all directional indicators (such as up, down, left, right, front, back, horizontal, vertical, etc.) are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0043] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of this utility model may actually be an approximate parallel relationship, and the perpendicular relationship may actually be an approximate perpendicular relationship.

[0044] Example 1

[0045] like Figures 1 to 3As shown, an improved self-ligating bracket with elastic grooves includes a base plate 1 and a bracket body 2. The lower surface of the base plate 1 is used for bonding to the surface of the patient's teeth. The bracket body 2 is fixedly disposed on the upper surface of the base plate 1.

[0046] like Figure 1 and Figure 2 As shown, the bracket body 2 has an archwire groove 3, and on both sides of the archwire groove 3 are a first working wing 22 and a second working wing 23 arranged opposite to each other, that is, an archwire groove 3 for accommodating orthodontic archwires is formed between the two working wings. A groove 23 for accommodating a sliding locking piece 4 is provided on the second working wing 23. In specific implementations, it can also be set on the first working wing as needed; the first and second working wings are only for descriptive convenience. The following text will uniformly describe it as the sliding locking piece being set on the second working wing.

[0047] like Figures 4 to 7 As shown, the sliding locking piece 4 has a first slide bar 42 and a second slide bar 43 respectively provided on both sides along the sliding direction; correspondingly, as... Figure 3 As shown, the slide groove 23 of the bracket body 2 is provided with a first slide rail 7 and a second slide rail 8 on both sides, respectively. The first slide bar 42 and the second slide bar 43 respectively cooperate with the first slide rail 7 and the second slide rail 8 to guide the sliding locking piece 4 to slide more stably within the slide groove 23. The sliding locking piece 4 is also provided with a positioning hole 41 that cooperates with the positioning pin 5, and the shape and size of the positioning hole 41 are matched with those of the positioning pin 5. Figure 5 As shown, the positioning pin 5 used in this embodiment can be a positioning pin with a cylindrical rod portion 52 and a shoulder portion 51. Of course, in specific implementations, other forms of positioning pins can be used as needed, and are not limited to the above forms, as long as the positioning pin and the positioning hole can be matched one by one.

[0048] like Figure 3 As shown, a closed locking groove 230 is formed at the center of the bottom surface of the slide groove 23. The locking groove 230 extends along the length of the slide groove 23, and its two ends are respectively provided with a locking hole 237 and an unlocking hole 231. The locking hole 237 is located at the end closer to the bow wire groove 3, and the unlocking hole 231 is located at the end away from the bow wire groove 3. On both sides of the locking groove 230, a first deformation groove 232 and a second deformation groove 233 are respectively arranged in parallel. The portions between these two deformation grooves and the locking groove 230 form a first deformation sidewall 234 and a second deformation sidewall 235, respectively. The thickness and length of the first deformation sidewall 234 and the second deformation sidewall 235 are precisely designed to obtain appropriate elastic deformation capacity, ensuring sufficient deformation without affecting service life due to excessive deformation.

[0049] like Figures 1 to 11As shown, the shape of the sliding lock piece 4 is adapted to the sliding groove 23. After the positioning pin 5 passes through the positioning hole 41 on the sliding lock piece 4, the end of the positioning pin protrudes from the lower surface of the sliding lock piece 4, and the protruding part is embedded in the lock groove 230. The shape and size of the end part of the positioning pin 5 match the lock groove 230. Generally, the height of the protruding part of the end of the positioning pin 5 needs to be slightly greater than the depth of the lock groove 230, and the size of the protruding part of the end of the positioning pin 5 can achieve the cooperation with the locking hole 237 and the unlocking hole 231. The position of the positioning pin 5 corresponds precisely to the positions of the lock groove 230, the locking hole 237, and the unlocking hole 231, ensuring that the positioning pin 5 can move smoothly in the lock groove 230 and accurately cooperate with the locking hole 237 and the unlocking hole 231 during the sliding process.

[0050] like Figure 3 As shown, the parent body portion below the locking groove 230, the first deformation groove 232, and the second deformation groove 233 is provided with a hollowed-out groove 236, making the locking groove 230, the first deformation groove 232, and the second deformation groove 233 interconnected. This structure greatly improves the elasticity of the sidewall of the locking groove 230, allowing the entire locking groove 230 to have good deformation space. In practical implementation, the fit between the positioning end and the locking groove 230 can be set more tightly, so that the sliding locking piece can both slide and be stably and firmly positioned.

[0051] The working process of this embodiment is as follows:

[0052] 1. When opening the lock plate: push the sliding lock plate 4 away from the archwire groove 3. The positioning pin 5 slides in the lock groove 230 along with the sliding lock plate 4. At the same time, the first deformable side wall 234 and the second deformable side wall 235 undergo elastic deformation. The positioning pin 5 finally enters the unlocking hole 231 to achieve the fully open position. At this time, the orthodontic archwire can be placed into the archwire groove 3.

[0053] 2. When closing the locking plate: Push the locking plate 4 towards the direction close to the archwire groove 3. The positioning pin 5 slides out from the unlocking hole 231. Under the elastic action of the first deformed sidewall 234 and the second deformed sidewall 235, the positioning pin 5 finally enters the locking hole 237 to lock the sliding locking plate in a fully closed state. At this time, the orthodontic archwire is reliably fixed in the archwire groove 3.

[0054] Example 2

[0055] like Figure 12As shown, the other structures in this embodiment are the same as in Embodiment 1, except that an opening 2311 is provided at the end of the locking groove 230 of the bracket body away from the bow wire groove 3, that is, at the end where the unlocking hole 231 is located. The width of this opening is slightly smaller than the width of the positioning pin 5. This opening provides better elastic space for the locking groove 230 and facilitates the assembly of the locking piece 4. The edge of the opening is designed as a guide bevel, further improving the convenience of assembly.

[0056] Example 3

[0057] like Figure 13 As shown, the other structures of this embodiment are the same as those of embodiment 1, except that the parent body portion below the locking groove 230, the first deformation groove 232, and the second deformation groove 233 is not provided with a hollowed-out groove. Because no hollowed-out groove is provided, the elasticity of the locking groove is not as flexible, but the end of the positioning pin can still slide and be positioned within the limited deformation of the locking groove.

[0058] Example 4

[0059] like Figure 14 As shown, the other structures of this fourth embodiment are the same as those of the third embodiment. The difference is that an opening 2311 is provided at the end of the locking groove 230 of the bracket body away from the bow wire groove 3, that is, at the end where the unlocking hole 231 is located. The width of this opening is slightly smaller than the width of the positioning pin 5. This opening provides better elastic space for the locking groove 230 and facilitates the assembly of the locking piece 4. The edge of the opening is designed as a guide bevel, further improving the convenience of assembly.

[0060] Example 5

[0061] like Figures 15 to 18 As shown, the other structures of this embodiment are the same as those of embodiment 1, except that the sliding locking plate is fully covered, and the second working wing is also provided with a guide channel to guide the sliding locking plate to slide, that is, as shown in the figure. Figure 16 The two guide channels 9 shown have corresponding sliding lock plates with grooves (not shown in the figure) on their lower surfaces that mate with the guide channels 9. Further, as... Figure 15 As shown, the two ends of the bowwire groove are also provided with arc-shaped concave surfaces 31. The arc-shaped concave surfaces facilitate the positioning of the bowwire at both ends, making the bowwire positioning more stable.

[0062] Example 6

[0063] like Figure 19 and Figure 20 As shown, the other structures of this embodiment six are the same as those of embodiment five. The difference is that the bottom surface of the bowwire groove is also provided with an arc-shaped groove 32 extending along the length of the bowwire groove. The arc-shaped groove 32 facilitates the positioning of the bowwire in the bowwire groove, making the bowwire positioning more stable.

[0064] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort should fall within the scope of protection of this utility model.

Claims

1. An improved self-ligating bracket, comprising a base plate, a bracket body and a sliding lock piece, the bracket body has an archwire slot for accommodating an archwire, the archwire slot divides the bracket body into a first working wing and a second working wing; a sliding slot for accommodating the sliding lock piece is arranged on the first working wing or the second working wing, the sliding lock piece slides in the sliding slot to close or open the archwire slot; characterized in that: The bottom surface of the chute is provided with a closed locking groove extending along the length direction of the chute; the two side walls of the locking groove extending along the length direction of the chute can be deformed under external force; the lower surface of the sliding lock plate is provided with a positioning end protruding from the lower surface of the sliding lock plate, and the positioning end is located in the locking groove and cooperates with the locking groove.

2. The improved self-ligating bracket with elastic slot according to claim 1, wherein: The locking groove is provided with a locking hole and an unlocking hole at two ends respectively, the locking hole is located at one end close to the archwire groove, and the unlocking hole is located at one end away from the archwire groove.

3. The improved elastic slot self-ligating bracket of claim 1 or 2, wherein: The two sides of the locking groove are respectively provided with a first deformation groove and a second deformation groove in parallel, the first deformation groove and the adjacent part of the locking groove form a first deformation side wall; The second deformation groove and the adjacent part of the locking groove form a second deformation side wall; the first deformation side wall and the second deformation side wall have elasticity.

4. The improved self-ligating bracket with elastic slot according to claim 3, wherein: The sliding lock plate is provided with a positioning hole, the positioning hole is provided with a positioning pin, the end of the positioning pin forms a positioning end located on the lower surface of the sliding lock plate, and the end of the positioning pin extends into the locking groove.

5. The improved self-ligating bracket with elastic slot according to claim 4, wherein: The parent part below the locking groove, the first deformation groove and the second deformation groove is provided with a hollow groove, so that the locking groove, the first deformation groove and the second deformation groove are through.

6. The improved self-ligating bracket with elastic slot according to claim 2, wherein: The end of the unlocking hole away from the archwire groove has an opening.

7. The improved self-ligating bracket with elastic slot according to any one of claims 1-2, 4-6, wherein: The two ends of the archwire groove are provided with circular arc concave surfaces.

8. The improved self-ligating bracket with elastic slot according to any one of claims 1-2, 4-6, wherein: The bottom surface of the archwire groove is provided with a circular arc groove extending along the length direction of the archwire groove.

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