Active and passive annular locking plate self-ligating bracket

Abstract

The utility model discloses an active and passive annular locking plate self-ligating bracket, which comprises a bracket matrix provided with an arch wire groove, and further comprises an annular locking plate provided with an arc section and a concave section which are connected in sequence to form an annular structure with an opening, and an annular locking plate provided with an arc section and a concave section which are connected in sequence to form an annular structure with an opening, an annular groove is further formed in the portion, on the periphery of the arch wire groove, of the parent body, the annular groove is provided with a first annular groove opening, a second annular groove opening and an annular groove first transition section, and the groove width of the annular groove first transition section is larger than that of other portions of the annular groove. And the annular locking plate can rotate in the annular groove. The bracket disclosed by the utility model has the advantages that the bracket is simple in structure and convenient to lock, and active self-locking and passive self-locking can be realized at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to orthodontic appliance field, concretely relates to a tooth orthodontic active and passive ring lock piece self -lock bracket. BACKGROUND

[0002] In orthodontic correction treatment, usually need to paste orthodontic bracket on the tooth surface, and place orthodontic arch wire in the arch wire groove of bracket, to deliver correction force to make tooth reach the expected movement. The traditional orthodontic bracket needs to use ligation wire or rubber ring to fix the arch wire in the bracket, and this ligation mode is complicated to operate and can produce a large pressure on the arch wire, which affects the normal movement of the arch wire, and further affects the orthodontic effect. In order to solve this problem, self-locking bracket design has appeared in recent years.

[0003] But the self-locking bracket on the market often realizes locking through the locking structure between the sliding lock piece and the bracket parent body, and these locking structures are often realized by spring, ball and the like, which are complex in structure and prone to looseness after long-term use, resulting in problems such as lock piece falling off. SUMMARY

[0004] The utility model discloses in order to overcome the above prior art's insufficient, provide a simple structure, locking is convenient, and can realize the active self -locking and passive self -locking of annular lock piece self -lock bracket.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of active and passive ring lock piece self-locking bracket, including bracket parent body, the bracket parent body has arch wire groove, further including: ring lock piece, the ring lock piece has circular segment and lower concave section, the circular segment and lower concave section are sequentially connected to form the annular structure with opening;Along the parent body portion of the outer periphery of arch wire groove is also provided with annular groove, the annular groove has first annular slot, second annular slot and annular groove first transition section, the groove width of annular groove first transition section is greater than the groove width of other parts of annular groove;The ring lock piece can rotate in annular groove.

[0007] The above-mentioned active and passive ring lock piece self-locking bracket, the first annular slot is located at the side of the first working wing, and the second annular slot is located at the side of the second working wing.

[0008] The above-mentioned active and passive ring lock piece self-locking bracket, the inner side of the first working wing and / or second working wing is provided with a force slot, and the force slot is through with the annular groove.

[0009] The force applying holes are arranged on the lower concave section and the circular arc section respectively.

[0010] The force applying holes are arranged on the lower concave section and the circular arc section respectively.

[0011] The first transition section of the annular groove is further connected with a second transition section of the annular groove, and the annular lock piece sequentially comprises a second circular arc section, a lower concave section and a third circular arc section.

[0012] The curvature radius of the second circular arc section and the third circular arc section is matched with the non-transition section of the annular groove.

[0013] The utility model has the advantages that:

[0014] 1. The cooperation of the annular groove and the annular lock piece ensures the stability of the lock piece movement.

[0015] 2. The multiple force applying holes provide multiple operation options.

[0016] 3. The lower concave section of the annular lock piece precisely cooperates with the arch wire groove, ensuring the fixing effect of the arch wire.

[0017] 4. The annular structure avoids the problem of easy loosening of the traditional self-locking bracket. DRAWINGS

[0018] Figure 1 Figure 1 is a schematic diagram of the mother structure of the main and passive annular lock piece self-locking bracket.

[0019] Figure 2 Figure 2 is a schematic diagram of the other side of the mother structure of the main and passive annular lock piece self-locking bracket. Figure 1

[0020] Figure 3 is a schematic diagram of the mother structure of the main and passive annular lock piece self-locking bracket without the lock piece. Figure 3 Figure 1 Figure 4 is a schematic diagram of the main and passive annular lock piece self-locking bracket in the active mode.

[0021] Figure 4 ​This is a schematic diagram of the locking plate structure of the active and passive annular locking plate self-locking bracket in Embodiment 1.

[0022] Figure 5 for Figure 1 A top view diagram.

[0023] Figure 6 for Figure 5 A schematic diagram of the AA cross-section.

[0024] Figure 7 This is a schematic diagram of the mother body state when the self-locking bracket of the active and passive annular locking plate closes the locking plate according to Embodiment 1 of this utility model.

[0025] Figure 8 This is a schematic diagram of the locking plate structure of the active and passive annular locking plate self-locking bracket in Embodiment 2.

[0026] Figure 9 This is a top view schematic diagram of the main body structure of the self-locking bracket of the active and passive annular locking plate in Embodiment 2.

[0027] Figure 10 for Figure 9 BB cross-section.

[0028] The diagram identifies the following components: bracket body 1, archwire groove 12, first working wing 13, second working wing 14, force application groove 15, annular groove 16, first annular groove opening 161, second annular groove opening 162, first transition section of annular groove 163, second transition section of annular groove 164, annular locking piece 2, first arc segment 21, concave section 22, first side of opening 23, second side of opening 24, first force application hole 25, second force application hole 26, third force application hole 27, second arc segment 28, third arc segment 29. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] All directional indications (such as up, down, left, right, front, back, transverse, longitudinal, and the like) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement condition between components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0032] Due to installation errors and other reasons, 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. Embodiment

[0033] As shown in Figures 1 to 3 , an annular locking piece self-locking bracket includes a base plate (not shown in the figure, connected to the bracket parent body part, used for pasting the bracket on the tooth crown and the like), a bracket parent body 1 and an annular locking piece 2. The bracket parent body 1 is provided with an archwire groove 12 for accommodating an orthodontic archwire. The bracket parent body 1 is also provided with a first working wing 13 and a second working wing 14 located on both sides of the archwire groove 12. The inner side of the second working wing 14 is provided with a force slot 15 for assisting the opening and closing operation of the annular locking piece 2. Of course, in specific implementation, a force slot can also be opened on the side of the first working wing 13 as needed.

[0034] As shown in Figure 3 , Figure 5 and Figure 6 , the bracket parent body 1 is provided with an annular groove 16, which extends along the outer periphery of the archwire groove 12 and forms a second annular groove 162 and a first annular groove 161 on the first working wing 13 and the second working wing 14, respectively. As shown in Figure 6 , the annular groove 16 connects the first annular groove 161 and the second annular groove 162 through an annular groove first transition section 163 to form a continuous annular structure. The design of the first transition section 163 enables the annular locking piece 2 to smoothly slide in the annular groove 16.

[0035] As shown in Figure 4 , the annular locking piece 2 includes a first circular arc section 21 and a concave section 22 connected in sequence, which together form an open annular structure. Among them, the curvature radius of the first circular arc section 21 is matched with the annular groove 16 to ensure smooth sliding of the annular locking piece 2 in the annular groove 16. One end of the concave section 22 forms an open first side edge 23; one end of the first circular arc section 21 is connected to the concave section 22, and the other end forms an open second side edge 24. The annular locking piece 2 is also provided with three force holes: a first force hole 25 and a second force hole 26 are arranged on the first circular arc section 21, and a third force hole 27 is arranged on the concave section 22. These force holes cooperate with the force slot 15, and through special instruments, the opening and closing operation of the annular locking piece 2 can be realized.

[0036] The working process of the embodiment is as follows:

[0037] The special instrument is selectively inserted into the corresponding force applying hole as needed, and a force point is provided by cooperating with the force applying groove. By applying external force, the annular locking piece is rotated in the annular groove. The embodiment can realize active self-locking locking form, as shown in Figure 7 The lower concave section 22 covers the arch wire groove 12 to form cooperation and realize locking of the arch wire. Figure 1 When opened, as shown in Figure 1 The lower concave section 22 is located in the annular groove first transition section 163 of the annular groove 16, at which time the arch wire can be taken out or put in. Embodiment

[0038] As shown in Figures 8 to 10 The other structures of the embodiment are the same as those of the first embodiment, and the difference lies in that the second circular arc section 28 and the third circular arc section 29 are symmetrically arranged on both sides of the lower concave section 22 of the annular locking piece 2, and the annular groove 16 is correspondingly provided with the annular groove first transition section 163 and the annular groove second transition section 164. Specifically, the two ends of the lower concave section 22 are connected with the second circular arc section 28 and the third circular arc section 29 respectively, forming a symmetrical circular arc transition structure. Correspondingly, the annular groove 16 on the bracket matrix 1 connects the first annular groove opening 161 and the second annular groove opening 162 through the annular groove first transition section 163 and the annular groove second transition section 164 to form a continuous annular structure. The corresponding structure design makes the annular locking piece 2 slide more smoothly in the annular groove 16. When the annular locking piece 2 slides along the annular groove first transition section 163 and the annular groove second transition section 164, the second circular arc section 28 or the third circular arc section 29 can cover the arch wire groove 12, thereby realizing the passive self-locking function. In this state, there is a proper gap between the arch wire and the inner wall of the second circular arc section 28 and the third circular arc section 29, so that the arch wire can slide freely in the groove, thereby realizing the passive correction effect.

[0039] When active self-locking is needed, the annular locking piece 2 can be continuously pushed so that the lower concave section 22 is aligned with the arch wire groove 12, at which time the lower concave section 22 will generate downward pressure on the arch wire to realize the active self-locking function. The symmetrical design of the annular groove first transition section 163 and the annular groove second transition section 164 ensures the stability of the switching process.

[0040] As shown in Figure 8 In terms of the layout of the force applying holes, the first force applying hole 25 and the third force applying hole 27 are symmetrically arranged on the second circular arc section 28 and the third circular arc section 29 respectively, and the second force applying hole 26 is arranged on the lower concave section 22. This layout cooperates with the symmetrical structure of the annular groove to facilitate the doctor to accurately control the position of the annular locking piece 2 through the special instrument, and realize the switching between the active and passive self-locking states.

[0041] The structure design not only realizes the organic combination of active and passive self-locking functions, but also improves the operation stability and service life of the product through the transition structure of the annular groove, so that the product is more suitable for clinical application requirements.

[0042] Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor shall belong to the scope of protection of the present application.

Claims

1. A self-locking bracket for active and passive annular locking plates, comprising a bracket body, wherein the bracket body has a bowwire groove, characterized in that, Also includes: The annular locking piece has an arc segment and a concave segment, which are sequentially connected to form an annular structure with an opening. An annular groove is also formed on the outer part of the archwire groove. The annular groove has a first annular groove opening, a second annular groove opening, and a first transition section. The width of the first transition section is greater than the width of the other parts of the annular groove, and the first transition section cooperates with the concave segment. The annular locking piece can rotate within the annular groove.

2. The active and passive annular locking plate self-locking bracket as described in claim 1, characterized in that: The bowwire groove is provided with a first working wing and a second working wing on both sides, with the first annular groove located on one side of the first working wing and the second annular groove located on one side of the second working wing.

3. The active and passive annular locking plate self-locking bracket as described in claim 2, characterized in that: The inner side of the first working wing and / or the second working wing is provided with a force-applying groove, which is connected to the annular groove.

4. The active and passive annular locking plate self-locking bracket as described in claim 3, characterized in that: The annular locking plate is provided with a number of force-applying holes. As the annular locking plate rotates within the annular groove, the force-applying holes promote the rotation of the annular locking plate within the annular groove under the action of external force.

5. The active and passive annular locking plate self-locking bracket as described in claim 4, characterized in that: The force-applying holes are respectively located on the concave section and the arc section of the annular locking plate.

6. The active and passive annular locking plate self-locking bracket as described in claim 4, characterized in that: The first transition section of the annular groove is also connected to the second transition section of the annular groove. The corresponding annular locking piece includes a second arc segment, a concave segment, and a third arc segment in sequence. When the concave segment is located in the first transition section of the annular groove, the first arc segment closes the bow wire groove. When the concave segment is located in the second transition section of the annular groove, the first arc segment closes the bow wire groove, and the bow wire groove opens.

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