Torque-adjustable bracket

Abstract

The utility model discloses a torque adjustable bracket which comprises a bracket fixing structure, a bracket body, a bottom plate and a torque adjusting assembly, the bracket body is movably connected with the bottom plate, the bracket fixing structure is connected with the bottom plate, and the torque adjusting assembly is detachably clamped among the bracket fixing structure, the bracket body and the bottom plate. According to the utility model, the torque adjusting assemblies with different torques are placed in the adjusting cavity, so that the torque adjustment of the bracket is realized, and the required bracket torque is obtained, so that the bracket can meet various clinical torque requirements, the times of replacing various torque brackets by a patient and the differentiated requirements of the patient exclusive to the own torque bracket are reduced, and the patient experience is improved. Therefore, a better correction effect is achieved, and the correction period is shortened.

Description

Technical Field

[0001] The utility model belongs to the field of medical equipment and relates to a torque-adjustable bracket. Background Art

[0002] Orthodontic brackets are important components of fixed tooth correction technology. They are directly bonded to the crown surface with adhesives. The archwires pass through the brackets to apply various types of correction forces to the teeth. Brackets are used to fix the archwires, so that the archwires can play a better role and transmit correction forces, thereby controlling the three-dimensional movement of teeth and achieving the purpose of orthodontic correction.

[0003] However, the groove direction of the existing bracket is fixed, and the direction of the archwire is also fixed when passing through the bracket. For some teeth that need to be corrected, the required angle is relatively special, and the existing bracket cannot provide a precise angle to apply correction force to the teeth. Summary of the invention

[0004] In order to overcome at least one deficiency of the prior art, the utility model provides a torque-adjustable bracket.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a torque-adjustable bracket, including a bracket fixing structure, a bracket body, a base plate and a torque adjustment component, the bracket body and the base plate are movably connected, the bracket fixing structure is connected to the base plate, and the torque adjustment component is detachably clamped between the bracket fixing structure, the bracket body and the base plate.

[0006] Furthermore, the base plate includes a bonding plate, a fixing plate and a rotating shaft, one side of the bonding plate is in contact with the tooth surface, and the other side is fixedly connected to the fixing plate, the bracket fixing structure is fixedly connected to the fixing plate, and the rotating shaft is fixed on the fixing plate.

[0007] Furthermore, the bracket fixing structure is fixedly connected to the fixing plate, the bracket fixing structure is provided with an arc groove, the arc groove includes a second arc surface, the bracket body includes a rotating block, the rotating block is provided with an installation cavity, the end surface of the installation cavity is set as a third arc surface, the curvature of the third arc surface matches the curvature of the second arc surface, and the second arc surface and the third arc surface are in contact with each other.

[0008] Furthermore, the end surface of the rotating shaft facing away from the fixed plate is set as a first arc surface, the rotating block is provided with a fourth arc surface, the rotating block is movably connected to the rotating shaft, the two are coaxially arranged, the fourth arc surface matches the curvature of the first arc surface, and the fourth arc surface is in contact with the first arc surface.

[0009] Furthermore, first inclined surfaces are symmetrically provided on two side surfaces of the rotating block, and the first inclined surfaces on both sides form an angle B. An adjustment cavity is formed between the first inclined surface of the rotating block, the second arc surface of the bracket fixing structure, the fixing plate and the first arc surface of the rotating shaft, and the torque adjustment component is installed in the adjustment cavity.

[0010] Furthermore, the adjustment cavity includes a first adjustment cavity and / or a second adjustment cavity, the first adjustment cavity and the second adjustment cavity are respectively located on both sides of the bracket body, and the torque adjustment assembly includes a first adjustment block and a second adjustment block, the first adjustment block is buckled in the first adjustment cavity, and the second adjustment block is buckled in the second adjustment cavity.

[0011] Furthermore, the first adjusting block and the second adjusting block are arranged to fit with the first inclined surface, the second curved surface, the fixing plate and the first curved surface of the rotating shaft.

[0012] Further, the first adjustment block includes a first side, a second side, a third side and a fourth side, the first side and the second side are inclined surfaces on both sides, the third side and the fourth side are arc surfaces on both sides, the first side fits with the first inclined surface on one side, the second side fits with one side of the fixed plate, the third side fits with the second arc surface, and the fourth side fits with the first arc surface; the second adjustment block includes a fifth side, a sixth side, a seventh side and an eighth side, the fifth side and the sixth side are inclined surfaces on both sides, the seventh side and the eighth side are arc surfaces on both sides, the fifth side fits with the first inclined surface on the other side, the sixth side fits with the other side of the fixed plate, the seventh side fits with the second arc surface, and the eighth side fits with the first arc surface.

[0013] Furthermore, the angle between the first side and the second side of the first adjustment block is set to a1, the angle between the first inclined surface of the rotating block and the fixed plate on one side is set to a11, a1 is the same as a11, the angle between the fifth side and the sixth side of the second adjustment block is set to b1, the angle between the first inclined surface on the other side of the rotating block and the fixed plate on the other side is set to b11, b1 is the same as b11, a1+b1+B=a11+b11+B=180°.

[0014] Furthermore, the angles of the first adjustment block are a1=90°-(B / 2-c), b1=90°-(B / 2+c), and c is the target angle.

[0015] In summary, the utility model is beneficial in that:

[0016] The utility model realizes the torque adjustment of the bracket by placing torque adjustment components with different torques in the adjustment cavity to obtain the required bracket torque, so that the bracket can meet various clinical torque requirements, reducing the number of times patients change brackets with various torques and the differentiated requirements of patients for their own torque brackets, thereby achieving better correction effects and reducing the correction cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the bracket assembly of the first embodiment of the utility model.

[0018] Figure 2 This is a schematic diagram of the bracket exploded view of the first embodiment of the present utility model.

[0019] Figure 3 This is a schematic diagram of a bracket according to Embodiment 1 of the present utility model.

[0020] Figure 4 This is a schematic diagram of a bracket according to Embodiment 1 of the present utility model.

[0021] Figure 5 This is a schematic diagram of a bracket according to Embodiment 1 of the present utility model.

[0022] Figure 6 This is a schematic diagram of a bracket according to Embodiment 1 of the present utility model.

[0023] Figure 7 This is a schematic diagram of a bracket according to Embodiment 2 of the present utility model. 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 6 As shown, a torque-adjustable bracket includes a bracket fixing structure 1, a bracket body 2, a base plate 3 and a torque adjustment component 4. The bracket body 2 and the base plate 3 are movably connected, the bracket fixing structure 1 is connected to the base plate 3, and the torque adjustment component 4 is detachably clamped between the bracket fixing structure 1, the bracket body 2 and the base plate 3.

[0030] To facilitate the description of orientation, a coordinate system xyz is established, where the x direction is defined as the left-right direction, the y direction is defined as the front-back direction, and the z direction is defined as the up-down direction.

[0031] The base plate 3 includes a bonding plate 31, a fixing plate 32 and a rotating shaft 33. One side of the bonding plate is used to fit with the tooth surface, and the other side of the bonding plate 31 is fixedly connected to the fixing plate 32. The fixing plate 32 is configured as a flat plate structure, and the bracket fixing structure 1 is fixedly connected to the fixing plate 32. The rotating shaft 33 is fixed on the fixing plate 32, preferably located at the center of the fixing plate 32. The bonding plate 31, the fixing plate 32 and the rotating shaft 33 constitute a progressive three-layer structure.

[0032] The end surface of the rotating shaft 33 away from the fixing plate 32 is set as a first arc surface 331. In this embodiment, Figure 2 As shown, the first arc surface 331 of the rotating shaft 3 is set to be a semicircular surface, and the whole is a semi-cylindrical structure.

[0033] In the y direction, the length of the rotating shaft 3 is consistent with the length of the fixing plate 32 .

[0034] The bracket fixing structure 1 is configured as an arched structure, and the two ends of the bracket fixing structure 1 in the x direction are respectively fixedly connected to the fixing plate 32 across the rotating shaft 33, and preferably, the two are welded and fixed; the arched part of the bracket fixing structure 1 forms an arcuate groove 11, and the arcuate groove 11 faces the direction of the rotating shaft 33, and the arcuate groove 11 includes a second arc surface 111.

[0035] The bracket body 2 includes a rotating block 21 and a ligation wing unit 22. The ligation wing unit 22 is provided with two ligation wing units 22. The two ligation wing units 22 are symmetrically arranged along the y direction. The ligation wing unit 22 includes two ligation wings 221. The two ligation wings 221 of one ligation wing unit 22 are symmetrically arranged relative to the x direction. Figure 2 As shown, the four ligature wings are arranged in a rectangular shape.

[0036] An archwire slot 222 is provided between the two ligation wings 221 of a ligation wing unit 22. The slot of the archwire slot 222 faces away from the rotating block 21. The archwire slots 222 of the two ligation wing units 22 are interconnected for installing an archwire.

[0037] The rotating block 21 is provided with an installation cavity 210, and the end face of the installation cavity 210 is set as a third curved surface 211. The installation cavity 210 is located between the two ligation wing units 22, and its cavity mouth is away from the bottom plate 3. The curvature of the third curved surface 211 matches the curvature of the second curved surface 111. The bracket fixing structure 1 is snap-fitted and installed in the installation cavity 210 of the rotating block 21, and the second curved surface 111 and the third curved surface 211 are in contact with each other to ensure the stability of the installation of the bracket fixing structure 1.

[0038] The mounting cavity 210 is a sunken structure, and the height of the third arc surface 211 is lower than the bottom surface of the archwire slot 222. The height difference between the two matches the thickness of the bracket fixing structure 1. When the bracket fixing structure 1 is installed on the rotating block 21, its thickness can make up for the height difference.

[0039] The width of the mounting cavity 210 in the y direction matches the width of the mounting cavity 210 to ensure the stability of the installation of the bracket fixing structure 1 .

[0040] A fourth arc surface 212 is provided on the bottom surface of the rotating block 21. The rotating block 21 is movably connected to the rotating shaft 32. The two are coaxially arranged and preferably rotationally connected, that is, the rotating block 21 rotates around A relative to the rotating shaft 32. Preferably, the fourth arc surface 212 has the same curvature as the first arc surface 331. When the rotating block 21 is connected to the rotating shaft 32, the fourth arc surface 212 is in contact with the first arc surface 331.

[0041] The first inclined surfaces 213 are symmetrically disposed on two side surfaces of the rotating block 21 , and the first inclined surfaces 213 on both sides form an angle B.

[0042] An adjustment cavity is formed between the first inclined surface 213 of the rotating block 21 , the second curved surface 111 of the bracket fixing structure 1 , the fixing plate 32 and the first curved surface 331 of the rotating shaft 33 , and the torque adjustment assembly 4 is installed in the adjustment cavity.

[0043] The regulating chamber includes a first regulating chamber 41 and a second regulating chamber 42. Figure 3 As shown, the first adjustment cavity 41 and the second adjustment cavity 42 are respectively located on both sides of the bracket body 2, and the torque adjustment assembly 4 includes a first adjustment block 43 and a second adjustment block 44. The first adjustment block 41 is buckled in the first adjustment cavity 41, and the second adjustment block 44 is buckled in the second adjustment cavity 42. The first adjustment block 43 and the second adjustment block 44 are both configured as fan-shaped structures. The first adjustment block 41 and the second adjustment block 44 are tightly fitted with the first inclined surface 213, the second curved surface 111, the fixing plate 32 and the first curved surface 331 of the rotating shaft 33, so that the bracket body 2 remains stable and stationary relative to the base plate 3.

[0044] The first adjustment block 43 includes a first side 431, a second side 432, a third side 433 and a fourth side 434. The first side 431 and the second side 432 are inclined surfaces on both sides, and the third side 433 and the fourth side 434 are arc surfaces on both sides. The first side 431 is in contact with the first inclined surface 213 on one side, the second side 432 is in contact with one side of the fixing plate 32, the third side 433 is in contact with the second arc surface 111, and the fourth side 434 is in contact with the first arc surface 331. The second adjustment block 44 includes a fifth side 441, a sixth side 442, a seventh side 443 and an eighth side 444. The fifth side 441 and the sixth side 442 are inclined surfaces on both sides, the seventh side 443 and the eighth side 444 are arc surfaces on both sides, the fifth side 441 is in contact with the first inclined surface 213 on the other side, the sixth side 442 is in contact with the other side of the fixing plate 32, the seventh side 443 is in contact with the second arc surface 111, and the eighth side 444 is in contact with the first arc surface 331.

[0045] When installing the torque-adjustable bracket, first install the bracket body 2 on the base plate 3 so that the fourth arc surface 212 is in contact with the first arc surface 331, and the rotating block 21 is movably connected to the rotating shaft 32. Then, the bracket fixing structure 1 is clamped in the installation cavity 210, and its two ends are fixedly connected to the fixing plate 32. The movement of the bracket body 2 in the z direction is limited by the bracket fixing structure 1, so that the bracket body 2 can only rotate around the axis of the rotating shaft 32, that is, it rotates in contact with the first arc surface 331. During the rotation of the bracket body 2, the angle between the groove direction of the archwire slot 222 and the vertical plane changes, that is, the bracket torque keeps changing. The torque adjustment component 4 is buckled in the adjustment cavity to keep the bracket body 2 stable and stationary relative to the base plate 3, thereby obtaining the required bracket torque.

[0046] In this embodiment, the torque adjustment component 4 enables the bracket to achieve torque adjustment from positive torque to negative torque. Specifically, Figure 3 As shown, the angle between the first side 431 and the second side 432 of the first adjustment block 43 is set to a1, the angle between the first inclined surface 213 of the rotating block 21 and the fixed plate 32 on one side is set to a11, a1 is consistent with a11, so that the first adjustment block 43 is fitted and installed in the first adjustment cavity 41, the angle between the fifth side 441 and the sixth side 442 of the second adjustment block 44 is set to b1, the angle between the first inclined surface 213 on the other side of the rotating block 21 and the fixed plate 32 on the other side is set to b11, b1 is consistent with b11, so that the second adjustment block 44 is fitted and installed in the second adjustment cavity 42, wherein a1+b1+B=a11+b11+B=180°, preferably, a1 is 60°, b1 is 30°, and the angles will change during the rotation of the bracket body 2, as shown in FIG. Figure 4As shown, assuming that a11 changes to a21, b11 changes to b21 synchronously, a1 changes to a2, b1 changes to b2, a2+b2+B=a21+b21+B=180°, preferably, a2 is 45°, b1 is 45°, thereby realizing torque adjustment of the bracket.

[0047] In this embodiment, the torque adjustment of the bracket is achieved by placing a torque adjustment component 4 with different torques in the adjustment cavity to obtain the required bracket torque, so that the bracket can meet various clinical torque requirements, reducing the number of times the patient replaces various torque brackets and the differentiated requirements of the patient's own torque bracket, thereby achieving better correction effects and reducing the correction cycle.

[0048] This embodiment aims at selecting the appropriate first adjustment block 43 and second adjustment block 44 under the target torque of the bracket body 2. Specifically, Figure 4 The middle bracket body 2 is in a vertical direction, and the archwire slot 222 is at the critical line between positive torque and negative torque. Figure 5 As shown, the bracket body 2 rotates in the direction of the arrow to a target angle c, at which the archwire slot 222 is at a positive target torque, the angle a1 of the first adjustment block 43 is 90°-(B / 2-c), and the angle b1 of the second adjustment block 44 is 90°-(B / 2+c); Figure 6 As shown, the bracket body 2 rotates in the direction of the arrow to a target angle c, at which the archwire slot 222 is in a negative target torque, the angle a1 of the first adjustment block 43 is 90°-(B / 2+c), and the angle b1 of the second adjustment block 44 is 90°-(B / 2-c); that is, according to the target torque, the first adjustment block 43 and the second adjustment block 44 of the corresponding angle can be selected.

[0049] Embodiment 2:

[0050] like Figure 7 As shown, the difference between the second embodiment and the first embodiment is that in the first embodiment, the adjustment cavity includes a first adjustment cavity 41 and a second adjustment cavity 42, while in the present embodiment, any first inclined surface 213 of the bracket body 2 is fitted with the fixing plate 32, and the adjustment cavity includes the first adjustment cavity 41 or the second adjustment cavity 42.

[0051] Take the adjustment chamber including the first adjustment chamber 41 as an example for explanation:

[0052] The angle a1 of the first adjustment chamber 41 is =180°-B.

[0053] 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. A torque adjustable bracket, characterized in that: It includes a bracket fixing structure, a bracket body, a base plate and a torque adjustment component. The bracket body and the base plate are movably connected, the bracket fixing structure is connected to the base plate, and the torque adjustment component is detachably clamped between the bracket fixing structure, the bracket body and the base plate.

2. The torque-adjustable bracket according to claim 1, characterized in that: The base plate comprises a bonding plate, a fixing plate and a rotating shaft. One side of the bonding plate is in contact with the tooth surface, and the other side is fixedly connected to the fixing plate. The bracket fixing structure is fixedly connected to the fixing plate, and the rotating shaft is fixedly arranged on the fixing plate.

3. The torque-adjustable bracket according to claim 2, characterized in that: The bracket fixing structure is fixedly connected to the fixing plate, and the bracket fixing structure is provided with an arc groove, the arc groove includes a second arc surface, the bracket body includes a rotating block, the rotating block is provided with an installation cavity, and the end surface of the installation cavity is set as a third arc surface, the curvature of the third arc surface matches the curvature of the second arc surface, and the second arc surface and the third arc surface are in contact with each other.

4. The torque-adjustable bracket according to claim 2, characterized in that: The end surface of the rotating shaft away from the fixed plate is set as a first arc surface, the rotating block is provided with a fourth arc surface, the rotating block is movably connected to the rotating shaft, the two are coaxially arranged, the fourth arc surface matches the curvature of the first arc surface, and the fourth arc surface is in contact with the first arc surface.

5. The torque-adjustable bracket according to claim 3, characterized in that: The first inclined surfaces are symmetrically arranged on both sides of the rotating block, and the first inclined surfaces on both sides form an angle B. An adjustment cavity is formed between the first inclined surface of the rotating block, the second arc surface of the bracket fixing structure, the fixing plate and the first arc surface of the rotating shaft, and the torque adjustment component is installed in the adjustment cavity.

6. The torque-adjustable bracket according to claim 5, characterized in that: The adjustment cavity includes a first adjustment cavity and / or a second adjustment cavity, the first adjustment cavity and the second adjustment cavity are respectively located on both sides of the bracket body, the torque adjustment assembly includes a first adjustment block and a second adjustment block, the first adjustment block is buckled in the first adjustment cavity, and the second adjustment block is buckled in the second adjustment cavity.

7. The torque-adjustable bracket according to claim 6, characterized in that: The first adjusting block and the second adjusting block are arranged in close contact with the first inclined surface, the second curved surface, the fixing plate and the first curved surface of the rotating shaft.

8. The torque-adjustable bracket according to claim 6, characterized in that: The first adjustment block includes a first side, a second side, a third side and a fourth side, the first side and the second side are inclined surfaces on both sides, the third side and the fourth side are arc surfaces on both sides, the first side fits with the first inclined surface on one side, the second side fits with one side of the fixed plate, the third side fits with the second arc surface, and the fourth side fits with the first arc surface; the second adjustment block includes a fifth side, a sixth side, a seventh side and an eighth side, the fifth side and the sixth side are inclined surfaces on both sides, the seventh side and the eighth side are arc surfaces on both sides, the fifth side fits with the first inclined surface on the other side, the sixth side fits with the other side of the fixed plate, the seventh side fits with the second arc surface, and the eighth side fits with the first arc surface.

9. The torque-adjustable bracket according to claim 8, characterized in that: The included angle between the first side and the second side of the first adjusting block is set to a1, the included angle between the first inclined surface of the rotating block and one side fixed plate is set to a11, a1 is the same as a11, the included angle between the fifth side and the sixth side of the second adjusting block is set to b1, and the included angle between the first inclined surface on the other side of the rotating block and the other side fixed plate is set to b11. b1 is the same as b11, a1+b1+B=a11+b11+B=180°.

10. The torque-adjustable bracket according to claim 9, characterized in that: The angle of the first adjustment block is a1=90°-(B / 2-c), b1=90°-(B / 2+c), and c is the target angle.

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