A vertical slot orthodontic bracket

Abstract

The utility model provides a kind of vertical trench orthodontic bracket, including bottom plate, fixed block is provided on bottom plate, fixed block is provided with sliding groove body, main groove is provided between fixed block and sliding groove body, sliding groove is vertically passed and is set on the side of sliding groove body far from bottom plate, sliding groove is slidably connected with lock cover, the cross section of sliding groove and lock cover is all set as T letter shape structure, shaft hole is vertically passed and is set on the side wall of sliding groove body, shaft wire is set in shaft hole, shaft wire is set as deformable material, first recess is vertically passed and is set on the inner side wall of sliding groove and below shaft wire, limit recess is symmetrically set on the side of lock cover towards shaft wire, for cooperating shaft wire to limit lock cover, the utility model is equipped with T letter shape sliding groove and lock cover structure, reduces assembly alignment accuracy requirement, reduces installation jam, cooperates the first recess of the inner side of sliding groove, provides sufficient deformation space for shaft wire, avoids hard contact abrasion, makes lock cover open and close more smoothly, prolongs component service life.

Description

Technical Field

[0001] This utility model relates to the field of dental bracket technology, specifically to a vertical groove orthodontic bracket. Background Technology

[0002] As a core component of fixed orthodontic technology, brackets are stably attached to the surface of the tooth crown through adhesive. They are the key carrier for archwires to transmit orthodontic forces. Their materials include stainless steel, bioceramics, and composite resins. Different archwires with different characteristics can be adapted according to orthodontic needs. By precisely controlling the movement trajectory of teeth in three dimensions, orthodontic goals can be achieved. They are an indispensable and important tool in modern orthodontic treatment.

[0003] Existing technologies (such as the utility model patent with publication number CN221308441U) disclose a self-locking bracket, which adopts a locking structure that uses a shaft wire and an arc-shaped track. This design achieves the opening and closing of the locking cover by sliding the shaft wire along the arc-shaped track. It has the advantages of compact structure and stable locking force, which improves the efficiency of orthodontic treatment to a certain extent.

[0004] However, its shaft wire track has an upward-convex arc structure, and the shaft wire is directly inserted into the shaft wire groove without deformation space. This requires highly precise alignment during installation, making assembly difficult and prone to jamming. Furthermore, after long-term use, due to the lack of deformation space, the hard contact between the shaft wire and the track can easily lead to component wear, reduced locking stability, and even loosening of the locking cover, affecting the orthodontic effect. Utility Model Content

[0005] In view of this, the present invention provides a vertical groove orthodontic bracket, which can reduce the assembly alignment accuracy requirements and reduce installation jamming through the T-shaped sliding groove and locking cover structure. In conjunction with the first groove on the inner side of the sliding groove (arc or cylindrical and coaxial with the shaft hole), it provides sufficient deformation space for the shaft wire, avoids hard contact wear, makes the locking cover open and close more smoothly, and extends the service life of the component.

[0006] To solve the above-mentioned technical problems, this utility model provides a vertical groove orthodontic bracket, including a base plate, a fixing block fixedly connected to a vertical surface on one side of the base plate, and a sliding groove body fixedly connected to the side of the fixing block away from the base plate. The sliding groove body includes an upper wing and a lower wing, and a main groove is provided between the fixing block and the sliding groove body (i.e., the upper part of the fixing block has a main groove).

[0007] A slid groove is formed on the vertical surface of the slid body away from the bottom plate. A lock cover is slidably connected in the slid groove. The cross-section of both the slid groove and the lock cover is set as a T-shaped structure. The lock cover includes guide rails fixedly connected to both sides. The lock cover is slidably connected in the slid groove through the guide rails to prevent the lock cover from coming out of the slid groove in the vertical direction.

[0008] A shaft hole is provided through the side wall of the chute, and a shaft thread is installed in the shaft hole. The two ends of the shaft thread are welded to the lock cover by an electric welding machine.

[0009] The shaft wire is made of a deformable material, specifically a nickel-titanium alloy, which allows it to deform under the force of unlocking and automatically return to its original shape under the influence of oral cavity temperature, ensuring the reliability of the lock.

[0010] A first groove is provided on the inner side wall of the slide and below the shaft wire. The first groove provides space for the shaft wire to bend and deform during the sliding of the lock cover.

[0011] The first groove is designed with an arc shape.

[0012] The first groove is configured as a cylindrical structure, and the first groove is coaxial with the shaft hole. The diameter of the first groove is not less than the diameter of the shaft hole.

[0013] The lock cover has symmetrically provided limiting grooves on the side facing the shaft, which are used to limit the lock cover in conjunction with the shaft. That is, when the lock cover is closed, the shaft is located in the limiting groove on the side closer to the base plate, and when the lock cover is open, the shaft is located in the limiting groove on the side farther away from the base plate.

[0014] A limiting protrusion is fixedly connected to the lower part of the lock cover between two limiting grooves. This protrusion is used to contact the shaft screw and guide its bending during the opening of the lock cover, and to provide auxiliary positioning when the lock cover is closed.

[0015] A locking protrusion is fixedly connected to the lower part of the lock cover near the base plate. This is used to prevent the lock cover from sliding out excessively when the lock cover is open. The origin of the diameter of the shaft end face is set higher than the bottom surface of the locking protrusion (that is, the shaft center of the shaft is higher than the bottom surface of the locking protrusion).

[0016] The upper part of the fixing block has a second groove, and the lower part of the second groove has a conical concave surface, which is used to provide a support point for the unlocking tool and facilitate the application of unlocking force.

[0017] A protrusion is provided on the upper part of the lock cover near the base plate to increase the torque of the unlocking tool and make it easier to open the lock cover.

[0018] The upper part of the lock cover is marked to distinguish the tooth position number.

[0019] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0020] 1. Optimize assembly and sliding performance: The T-shaped slide groove and locking cover structure reduce the requirements for assembly alignment accuracy and reduce installation jamming. The first groove on the inner side of the slide groove (arc or cylindrical and coaxial with the shaft hole) provides sufficient deformation space for the shaft screw, avoids hard contact wear, makes the locking cover open and close more smoothly, and extends the service life of the component.

[0021] 2. Improve the stability and reliability of locking: The symmetrical limiting grooves on the lock cover cooperate with the shaft wire to accurately position the opening and closing state of the lock cover; the limiting protrusion guides the shaft wire to bend when the lock cover slides, and assists in positioning when it is closed, ensuring that the shaft wire and the groove are tightly fitted; the nickel-titanium alloy shaft wire automatically restores its shape using oral cavity temperature, further ensuring the reliability of locking and avoiding the lock cover from loosening and affecting the orthodontic effect.

[0022] 3. Enhanced ease of operation: The second groove and conical concave surface on the upper part of the fixing block provide a stable support point for the unlocking tool, and the protrusion at the end of the lock cover increases the applied torque, significantly reducing the difficulty of unlocking; the tooth position number marking on the upper part of the lock cover facilitates quick differentiation and improves clinical operation efficiency.

[0023] 4. Anti-fall-off and structural stability: The locking protrusion at the bottom of the lock cover can prevent the lock cover from sliding out excessively when opening. Combined with the stable connection (welded fixation) between the shaft screw and the slide groove, it can prevent parts from falling off and being lost, and ensure the integrity of the bracket structure.

[0024] 5. Differentiate tooth numbers and improve work efficiency: The markings on the upper part of the lock cover make it easy to distinguish tooth positions, allowing doctors to quickly identify the brackets corresponding to different teeth during clinical operations, reducing treatment errors caused by identification mistakes and improving the efficiency of treatment work. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the lock cover in the closed state of this utility model;

[0026] Figure 2 This is a schematic diagram of the overall structure of the lock cover in the open state of this utility model;

[0027] Figure 3 This is a schematic diagram of the base plate and its components of the present invention.

[0028] Figure 4 This is a bottom view schematic diagram of the lock cover structure of this utility model;

[0029] Figure 5 This is a top view schematic diagram of the lock cover structure of this utility model.

[0030] In the diagram: 101, base plate; 102, fixing block; 103, slide body; 104, main groove; 105, slide; 106, locking cover; 107, guide rail;

[0031] 201, Shaft hole; 202, Shaft thread; 203, First groove; 204, Limiting groove;

[0032] 301. Limiting protrusion;

[0033] 401. Locking protrusion;

[0034] 501. Second groove; 502. Conical concave surface;

[0035] 601. Boss;

[0036] 701. Identification. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-5 The technical solutions of the embodiments of this utility model are clearly and completely described herein. 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 described embodiments of this utility model are within the protection scope of this utility model.

[0038] A type of vertical groove orthodontic bracket, such as Figure 1 As shown: It includes a base plate 101, a fixing block 102 is fixedly connected to a vertical surface on one side of the base plate 101, and a sliding groove 103 is fixedly connected to the side of the fixing block 102 away from the base plate 101. The sliding groove 103 includes an upper wing and a lower wing, and a main groove 104 is provided between the fixing block 102 and the sliding groove 103 (that is, the main groove 104 is opened on the upper part of the fixing block 102).

[0039] The main groove 104 is used to accommodate the archwire, providing a stable channel for the archwire to transmit orthodontic forces and ensuring the effective transmission of forces during orthodontic treatment.

[0040] like Figure 1 , 3 As shown: A slide groove 105 is provided through the vertical surface of the slide body 103 away from the bottom plate 101. A lock cover 106 is slidably connected in the slide groove 105. The cross-sections of the slide groove 105 and the lock cover 106 are both set as T-shaped structures. The lock cover 106 includes guide rails 107 fixedly connected to its two sides. The lock cover 106 is slidably connected in the slide groove 105 through the guide rails 107 to prevent the lock cover 106 from coming out of the slide groove 105 in the vertical direction.

[0041] The T-shaped structure ensures that when the lock cover 106 slides within the slide groove 105, it can only slide along the extension direction of the slide groove 105 and will not come off in the vertical direction, thus ensuring the stability of the sliding of the lock cover 106. At the same time, it eliminates the need for high-precision alignment during assembly, reducing the difficulty of assembly and the possibility of jamming during installation.

[0042] like Figure 2 , 3As shown: A shaft hole 201 is provided through the side wall of the slide body 103, and a shaft wire 202 is provided in the shaft hole 201. The shaft wire 202 is used to guide and limit the sliding of the lock cover 106, ensuring that the lock cover 106 can slide stably in the slide 105 and be limited. The two ends of the shaft wire 202 are welded to the lock cover 106 by an electric welding machine, making its connection structure more stable.

[0043] Furthermore, the shaft wire 202 is made of a deformable material, specifically a nickel-titanium alloy. This allows the shaft wire 202 to deform under the force applied during unlocking and automatically return to its original shape under the influence of mouth temperature, ensuring the reliability of the lock and avoiding hard contact wear caused by the inability of the shaft wire 202 to deform, thus extending the service life of the component.

[0044] like Figure 3 As shown: A first groove 203 is provided on the inner wall of the slide groove 105 and below the shaft wire 202. The first groove 203 provides clearance space for the shaft wire 202 to bend and deform during the sliding of the lock cover 106, avoiding the shaft wire 202 from having a hard collision with the inner wall of the slide groove 105 due to insufficient deformation space, reducing the wear between the shaft wire 202 and the slide groove body 103, and also reducing the probability of jamming during the sliding of the lock cover 106, making the opening and closing of the lock cover 106 smoother.

[0045] Furthermore, the first groove 203 is configured as an arc-shaped structure, so that it is compatible with the bending deformation trajectory of the shaft wire 202, and can better accommodate the deformed shaft wire 202, thereby reducing the friction between the shaft wire 202 and the inner wall of the groove and improving the smoothness of the deformation of the shaft wire 202.

[0046] Preferably, the first groove 203 is configured as a cylindrical structure, and the first groove 203 is coaxially arranged with the shaft hole 201. The diameter of the first groove 203 is not less than the diameter of the shaft hole 201, so as to ensure that the shaft wire 202 can completely enter the first groove 203 when deformed, preventing the shaft wire 202 from being limited by space. At the same time, the coaxial arrangement makes the deformation of the shaft wire 202 more regular, avoiding jamming or accelerated wear caused by positional deviation.

[0047] like Figure 2 , 3 As shown in Figure 4, the locking cover 106 has symmetrically provided limiting grooves 204 on the side facing the shaft 202, which are used to limit the locking cover 106 in conjunction with the shaft 202. That is, when the locking cover 106 is closed, the shaft 202 is located in the limiting groove 204 on the side closer to the base plate 101, and when the locking cover 106 is open, the shaft 202 is located in the limiting groove 204 on the side away from the base plate 101.

[0048] The limiting groove 204 can precisely fix the position of the lock cover 106, ensuring that the lock cover 106 can tightly lock the bow wire when closed and can stably maintain the open state when opened, thus improving the stability of locking.

[0049] like Figure 1 , 2 As shown in Figure 4, a limiting protrusion 301 is fixedly connected to the lower part of the lock cover 106 and between the two limiting grooves 204. This protrusion is used to contact the shaft wire 202 and guide its bending during the opening of the lock cover 106, and to provide auxiliary positioning when the lock cover 106 is closed.

[0050] During the opening of the lock cover 106, the limiting protrusion 301 contacts the shaft wire 202 and guides it to bend, so that the deformable shaft wire 202 can deform according to the preset trajectory, avoiding irregular bending of the shaft wire 202 or hard contact with the inner wall of the slide groove 105 due to lack of guidance. With the clearance space provided by the first groove 203, the risk of jamming when the shaft wire 202 deforms is significantly reduced. At the same time, the wear between the shaft wire 202 and the bracket component is reduced, the service life of the bracket is extended, and the opening operation of the lock cover 106 is smoother.

[0051] When the locking cover 106 is closed, the limiting protrusion 301 can cooperate with the shaft wire 202 to form a positioning reference, ensuring that the locking cover 106 is accurately engaged in the closed position, so that the shaft wire 202 is precisely embedded in the limiting groove 204 on the side near the base plate 101. This avoids the problem of insecure locking caused by positional deviation when the locking cover 106 is closed, ensures stable fixation of the archwire in the main groove 104, and improves the reliability of the bracket in orthodontic treatment.

[0052] like Figure 4 As shown: A locking protrusion 401 is fixedly connected to the lower part of the lock cover 106 near the base plate 101. This is used to prevent the lock cover 106 from sliding out excessively when the lock cover 106 is open. The origin of the diameter of the end face of the shaft thread 202 is set higher than the bottom surface of the locking protrusion 401 (that is, the axis of the shaft thread 202 is higher than the bottom surface of the locking protrusion 401).

[0053] When the locking cover 106 is open, the locking protrusion 401 can precisely limit the sliding stroke of the locking cover 106, preventing it from excessively coming off the slide groove 105 due to improper operation force control or intraoral force, effectively preventing the locking cover 106 from falling off and being lost, ensuring the integrity of the bracket structure, and reducing treatment interruption or secondary installation operations caused by missing parts.

[0054] By limiting the movement, the locking cover 106 is kept in a preset safe position when opened, preventing it from shaking or shifting. This ensures that the locking cover 106 can remain stably open when the doctor is performing operations such as changing the archwire, providing a stable space and structural basis for the operation and improving the convenience of the treatment.

[0055] The setting of the shaft 202 being higher than the bottom surface of the locking protrusion 401 ensures the limiting function of the locking protrusion 401 without interfering with the normal deformation and reset of the shaft 202 during the sliding process of the lock cover 106. During the opening process of the lock cover 106, the shaft 202 can bend smoothly along the trajectory without being obstructed by the locking protrusion 401, ensuring the fitting accuracy between the shaft 202 and the limiting groove 204 and maintaining the reliability of the locking function.

[0056] like Figure 2 , 3 As shown in Figure 5: The upper part of the fixing block 102 has a second groove 501, and the lower part of the second groove 501 has a conical concave surface 502, which is used to provide a support point for the unlocking tool, making it easier to apply unlocking force, reducing the difficulty of unlocking operation, and making it more convenient and efficient for doctors to perform orthodontic treatment.

[0057] A boss 601 is provided on the upper part of the lock cover 106 near the base plate 101 to increase the torque of the unlocking tool, making it easier to open the lock cover 106. The design of the boss 601 increases the contact area between the unlocking tool and the lock cover 106, thereby increasing the torque and making it easier to open the lock cover 106, thus improving the convenience of operation.

[0058] like Figure 2 , 5 As shown: The upper part of the lock cover 106 is marked with a label 701 to distinguish tooth position numbers, which makes it convenient for doctors to quickly identify the brackets corresponding to different teeth in clinical operation, improves the work efficiency in the treatment process, and reduces treatment errors caused by identification errors.

[0059] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A vertical groove orthodontic bracket, comprising a base plate (101), a fixing block (102) disposed on the base plate (101), a sliding groove (103) disposed on the fixing block (102), a main groove (104) disposed between the fixing block (102) and the sliding groove (103), a sliding groove (105) being formed through the vertical surface of the sliding groove (103) away from the base plate (101), a locking cover (106) being slidably connected within the sliding groove (105), and both the sliding groove (105) and the locking cover (106) having a T-shaped cross-section, characterized in that: A shaft hole (201) is provided through the side wall of the slide body (103), and a shaft wire (202) is provided in the shaft hole (201); The shaft wire (202) is made of a deformable material; A first groove (203) is provided on the inner side wall of the slide groove (105) and below the shaft wire (202). The first groove (203) provides clearance space for the shaft wire (202) to bend and deform during the sliding of the lock cover (106). The locking cover (106) has symmetrically provided limiting grooves (204) on one side of the shaft wire (202) to cooperate with the shaft wire (202) to limit the locking cover (106).

2. The vertical groove orthodontic bracket as described in claim 1, characterized in that: The first groove (203) is configured as an arc-shaped structure.

3. The vertical groove orthodontic bracket as described in claim 1, characterized in that: The first groove (203) is coaxially arranged with the shaft hole (201), and the diameter of the first groove (203) is not less than the diameter of the shaft hole (201).

4. The vertical groove orthodontic bracket as described in claim 3, characterized in that: A limiting protrusion (301) is provided at the lower part of the lock cover (106) and between the two limiting grooves (204) for contacting and guiding the bending of the shaft wire (202) during the opening of the lock cover (106) and for providing auxiliary positioning when the lock cover (106) is closed.

5. The vertical groove orthodontic bracket as described in claim 4, characterized in that: The lock cover (106) is provided with a locking protrusion (401) at the lower part of one end near the base plate (101) to prevent the lock cover (106) from sliding out excessively when the lock cover (106) is open.

6. The vertical groove orthodontic bracket as described in claim 1, characterized in that: The upper part of the fixing block (102) is provided with a second groove (501), and the lower part of the second groove (501) is provided with a conical concave surface (502) to provide a support point for the unlocking tool and facilitate the application of unlocking force.

7. The vertical groove orthodontic bracket as described in claim 5, characterized in that: The lock cover (106) has a boss (601) on the upper part of the end near the base plate (101) to increase the force torque of the unlocking tool and facilitate opening the lock cover (106).

8. The vertical groove orthodontic bracket as described in claim 1, characterized in that: The shaft wire (202) is made of nickel-titanium alloy, which makes it easy for the shaft wire (202) to deform when the unlocking force is applied, and automatically restore its original shape under the action of oral cavity temperature, so as to ensure the reliability of locking.

9. The vertical groove orthodontic bracket as described in claim 4, characterized in that: The upper part of the lock cover (106) is provided with a mark (701) to distinguish the tooth position number.

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