Bracket with concealable towing hook

Abstract

According to the bracket with the concealable towing hook, the towing hook capable of rotating relative to a bracket body is arranged on the bracket body, a containing space is formed in the bracket body, and when the towing hook is not used, the towing hook is arranged in the containing space; when the traction hook is used, one end of the traction hook rotates outwards to leave the containing space, a fixed traction hook arranged on a traditional bracket is changed into the rotatable traction hook, and when the traction hook does not need to be used, the traction hook is hidden in the containing space, so that stimulation of the traction hook to oral mucosa of a patient can be greatly reduced; when the traction hook needs to be used, the traction hook can be taken out from the containing space through rotation, and the use of the traction hook is not affected.

Description

[0001] This case is a divisional application of the invention patent with application number 201910911133.7, application name and a bracket with hidden traction hook, and application date of September 25, 2019. Technical Field

[0002] The invention relates to the technical field of oral orthodontic appliances, and in particular to a bracket with a hidden traction hook. Background Art

[0003] Orthodontic brackets are the main components of fixed appliances that improve the patient's bite. In traditional orthodontics, the brackets are first fixed to the patient's teeth, and the archwires are connected to the archwire slots or archwire holes of each bracket. The archwires apply a corrective force that forces the teeth to move to the correct position. Sometimes, in order to move teeth, adjust the occlusal relationship, close gaps, etc., it is necessary to apply force to the teeth for intra-maxillary or inter-maxillary traction. This is done by setting traction hooks on the brackets and brackets, and hanging rubber rings or tension springs on the traction hooks to apply force to the teeth. Therefore, some brackets need to be provided with traction hooks.

[0004] Usually, the traction hook is not used throughout the entire orthodontic cycle, but is only used in the early or middle and late stages of orthodontics. However, the traction hooks set on the brackets on the market are all fixed traction hooks, and the current brackets cannot remove the traction hooks when they are not in use.

[0005] Our company submitted a patent application with application number 201510046931.X on January 29, 2015, which disclosed that a locking traction hole is set in the main body of the bracket, one end of the traction locking hole forms a locking hole in the main groove, and a traction component is set in the locking traction hole. Although the traction component in this prior application is movable, the outer end of the traction component is still exposed outside the main body of the bracket, which will still irritate the oral mucosa and cause discomfort to the patient. Moreover, the technical solution described in the application is to solve the problem of the archwire sliding in the bracket groove. In order to solve this technical problem, one end of the locking traction hole in the application must be connected to the main groove (i.e., the description in the above patent specification: the other end of the locking traction hole forms a locking hole in the main groove of the main body). The traction component is the locking bolt, whose outer wall has a thread. The locking bolt is connected to the main body of the bracket through the thread. The locking bolt is screwed inward into the locking traction hole. The tip of the bolt can enter the main groove of the bracket through the locking hole. When in working state, it contacts the archwire in the groove. The friction force of the squeeze can prevent the archwire from sliding in the bracket, achieving the effect of stopping. The technical problem solved by the application is completely different from that of the present application, and the technical solution is completely different from that of the present application.

[0006] Due to its functional requirements, the structure of the traction hook irritates the oral mucosa, which can easily give patients a strong foreign body sensation. In addition, the traction hooks on the market all contain sharp corner structures, which cause discomfort to patients. In order to reduce the foreign body sensation of patients, providing a bracket in which the traction hook can be hidden when not in use can greatly reduce the discomfort caused to patients during the use of the bracket. The present application aims to provide a bracket in which the traction hook can be hidden. Summary of the invention

[0007] In view of the above technical problem, the present invention provides a bracket with a concealable towing hook.

[0008] The technical solution adopted by the present invention to solve the technical problem is:

[0009] A bracket with a hidden traction hook, comprising:

[0010] Base plate;

[0011] A bracket body is disposed on the bottom plate, wherein a receiving space is disposed in the bracket body, and the receiving space is a receiving groove opened on the bracket body; and

[0012] A traction hook, the traction hook is located in the accommodating groove, and the traction hook can rotate relative to the bracket body;

[0013] Wherein, the bracket body also includes an elastic limiting member arranged in the accommodating space, and the traction hook is provided with a first limiting protrusion, and the side wall of the first limiting protrusion can abut against the elastic limiting member, so that the traction hook is accommodated in the accommodating groove when not in use.

[0014] In one of the embodiments, a rotating shaft is provided on the bracket body, and the traction hook is rotatably connected to the bracket body via the rotating shaft.

[0015] In one of the embodiments, the rotation axis is arranged perpendicular to the base plate.

[0016] In one embodiment, the bracket body includes a limiting member. When the traction function of the traction hook needs to be used, force is applied to rotate the traction hook, and the first limiting protrusion squeezes the elastic limiting member to cause it to deform, and then the first limiting protrusion passes over the elastic limiting member. When the traction hook is rotated to the use position, the limiting member abuts against the traction hook to prevent the traction hook from continuing to rotate.

[0017] In one embodiment, the limiting member is a side wall of the accommodating groove or a part of the side wall of the accommodating groove.

[0018] In one of the embodiments, a second limiting protrusion is further provided on the towing hook. When the towing function of the towing hook needs to be used, force is applied to rotate or move the towing hook, and the first limiting protrusion squeezes the elastic limiting part to cause it to deform, and then the first limiting protrusion passes over the elastic limiting part. When the towing hook is rotated or moved to the use position, the second limiting protrusion abuts against the towing hook to prevent the towing hook from continuing to rotate.

[0019] In one embodiment, when the towing hook is rotated to the use position, two sides of the elastic limiting member respectively abut against the side walls of the first limiting protrusion and the second limiting protrusion.

[0020] In one of the embodiments, when the traction hook is placed in the accommodating space, the outer surface of the traction hook matches the outer surface of the bracket body to form a smooth curved surface.

[0021] In one embodiment, the smooth curved surface is ellipsoidal or spherical.

[0022] In one embodiment, the outer surface of the traction hook is a smooth curved surface.

[0023] Compared with the prior art, the present invention has the following positive effects:

[0024] The present application provides a bracket with a hidden traction hook. An accommodating space is provided in the bracket body. The accommodating space is a accommodating groove opened on the bracket body. The traction hook is located in the accommodating groove and can rotate relative to the bracket body. When the traction hook is not in use, the traction hook is hidden in the accommodating groove, and the side wall of the first limiting protrusion abuts against the elastic limiting piece, so that the traction hook cannot extend out of the accommodating groove, which can greatly reduce the stimulation of the traction hook to the patient's oral mucosa and alleviate the patient's discomfort.

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural diagram of the traction hook of the bracket in Example 1 in a hidden state.

[0027] Figure 2 This is a diagram of the internal structure of the bracket in Example 1 when the traction hook is hidden.

[0028] Figure 3 It is a three-dimensional structural diagram of the bracket in Example 1 when the traction hook is in use.

[0029] Figure 4 It is a diagram of the internal structure of the bracket in Example 1 when the traction hook is in use.

[0030] Figure 5It is a three-dimensional structural diagram of the bracket in Example 1 when the cover is opened.

[0031] Figure 6 It is a three-dimensional structural diagram of the traction hook of the bracket in Example 2 in a hidden state.

[0032] Figure 7 This is a diagram of the internal structure of the bracket in Example 2 when the traction hook is hidden.

[0033] Figure 8 It is a three-dimensional structural diagram of the bracket in Example 2 when the traction hook is in use.

[0034] Fig. 9 It is a diagram of the internal structure of the bracket in Example 2 when the traction hook is in use.

[0035] Fig.10 It is a three-dimensional structural diagram of the traction hook of the bracket in Example 3 in a hidden state.

[0036] Fig.11 This is a diagram of the internal structure of the bracket in Example 3 when the traction hook is hidden.

[0037] Fig.12 It is a three-dimensional structural diagram of the bracket in Example 3 when the traction hook is in use.

[0038] Fig.13 It is a diagram of the internal structure of the bracket in Example 3 when the traction hook is in use.

[0039] Fig.14 It is a three-dimensional structural diagram of the bracket in Example 3 when the cover is opened. DETAILED DESCRIPTION

[0040] Example 1

[0041] Reference Figure 1 , Figure 1 It is a three-dimensional structural diagram of the traction hook of the bracket in Example 1 in a hidden state. This embodiment provides a bracket, including a connected base plate 1 and a bracket body 2. The base plate 1 is used to be pasted and fixed on the tooth surface of the tooth to be moved, and the base plate 1 and the bracket body 2 are fixedly connected. The bracket body 2 is provided with a through groove 20 for the arch wire to pass through. The cross-section of the through groove 20 can be any shape. In this embodiment, the through groove 20 is a square groove. A cover body 4 is provided on the through groove 20, and a card slot is provided on the bracket body 2. The cover body 4 can move along the card slot to open and close the through groove 20. The bracket body 2 is provided with a traction hook 3 that can rotate relative to it. In order to more conveniently display the structure of the bracket, Figure 2 The display shows the internal state of the bracket when the traction hook is not used. Figure 2 The bracket body 2 is transparent. Figure 2It can be seen that the bracket body 2 is provided with a receiving space 21. When the traction hook 3 is not in use, the traction hook 3 is placed in the receiving space 21. For example, in Embodiment 1, the receiving space 21 is a receiving groove provided on the bracket body 2. The shape of the receiving space 21 can be arbitrary. In the present embodiment, the shape of the receiving space 21 matches the shape of the traction hook 3. The receiving space 21 and the through groove 20 can be connected to each other or not. In the present embodiment, the receiving space 21 is not connected to the through groove 20. When the traction hook 3 is placed in the receiving space 21, the outer surface of the traction hook 3 matches the outer surface of the bracket body 2 to form a smooth curved surface. In the present embodiment, the outer surface of the traction hook 3 matches the outer surface of the bracket body 2 to form a smooth curved surface similar to a cube. Currently, brackets on the market are all square with sharp sides, and fixed traction hooks also have sharp structures, which will make patients feel strongly like they have foreign bodies and give them a poor experience in use. In this embodiment, the traction hook can be hidden, and the outer surface of the bracket forms a smooth curved surface, which can significantly improve the patient's experience in use.

[0042] Reference Figure 3-4 , Figure 3 is a three-dimensional structural diagram of the bracket in Example 1 when the traction hook is in use, Figure 4 : is an internal structure diagram of the bracket in Example 1 when the traction hook is in use. The bracket body 2 also includes a limiter 24, and the limiter 24 is used to limit the rotation angle of the traction hook 3. The limiter 24 is fixedly connected to the bracket body 2. In this embodiment, the limiter 24 and the bracket body 2 are integrally formed. For example, the limiter 24 is a side wall of the receiving groove or a part of the side wall of the receiving groove. A rotating shaft 23 is provided on the bracket body 2, and the traction hook 3 is rotatably connected to the bracket body 2 through the rotating shaft 23. Specifically in Example 1, the rotating shaft 23 is arranged perpendicular to the base plate 1. When the traction hook 3 rotates to the use position, the limiter 24 abuts against the traction hook 3 to prevent the traction hook 3 from further rotating. The limiter 24 limits the maximum rotation angle of the traction hook 3.

[0043] The bracket body 2 also includes an elastic stopper 22 disposed in the accommodating space 21, and the elastic stopper 22 contacts the side surface of the traction hook 3. The shape of the elastic stopper 22 can be arbitrary, and preferably, the surface of the elastic stopper 22 contacting the traction hook 3 is a smooth curved surface. In this embodiment, the elastic stopper 22 is a cylindrical rod, and the bracket body 2 is provided with holes for inserting the two ends of the elastic stopper 22. The two ends of the elastic stopper 22 are respectively inserted into the two holes, and the elastic stopper 22 can rotate axially. The elastic stopper 22 can also be fixed by welding or other components so that it cannot rotate axially.

[0044] The traction hook 3 is provided with a first limiting protrusion 34, and the side wall of the first limiting protrusion 34 can abut against the elastic limiting member 22, so that the traction hook 3 is accommodated in the accommodating groove when not in use. For example, the side of the traction hook 3 is provided with a first limiting protrusion 34, and when the traction hook is not in use, the elastic limiting member 22 abuts against the side wall of the first limiting protrusion 34 to prevent the traction hook 3 from rotating, and the elastic limiting member 22 and the first limiting protrusion 34 fix the traction hook 3 in a hidden position and cannot be automatically rotated out. When the traction hook 3 is used, force is applied to rotate the traction hook 3, and the first limiting protrusion 34 squeezes the elastic limiting member 22 to cause it to deform, and then the first limiting protrusion 34 passes over the elastic limiting member 22, and one end of the traction hook 3 leaves the accommodating space 21.

[0045] If the towing hook 3 needs to be turned back to the hidden position, it is only necessary to apply force inward to rotate the towing hook 3. The first limiting protrusion 34 squeezes the elastic limiting member 22 to cause it to deform. Then the first limiting protrusion 34 can pass over the elastic limiting member 22, and the towing hook 3 returns to the hidden position.

[0046] The end of the traction hook 3 facing the outside of the bracket body 2 when in use is a free end 32. The traction hook 3 forms a recess 33 near the free end 32. The recess 33 makes the free end 32 convex, which can be used to hang a rubber ring or a pull ring. The outer surface of the free end 32 is smoothly transitioned and does not contain sharp corners, which can greatly reduce the stimulation of the traction hook 3 to the patient's oral mucosa and is not easy to hook food.

[0047] The traction hook is used to hang a rubber band or tension spring for intra-maxillary or inter-maxillary traction. Usually, the traction hook is not used throughout the entire orthodontic cycle, but is only used in the early or middle and late stages of orthodontics. However, the traction hooks set on the brackets currently on the market are all fixed traction hooks, and the traction hooks cannot be removed when they are not in use. The bracket described in this embodiment changes the fixed traction hook of the conventional bracket into a rotating and concealable traction hook. When the traction hook 3 is not needed, the traction hook 3 is hidden in the accommodating space 21 inside the bracket body 2. When it is needed, the traction hook 3 is rotated out of the accommodating space 21, which can avoid the discomfort caused by the traction hook 3 to the patient when it is not in use.

[0048] All the traction hooks of brackets on the market are hooks formed by bending a column. On the one hand, they contain sharp corners, which can easily irritate the oral mucosa of the patient, causing a strong foreign body sensation and discomfort. On the other hand, they can easily get caught on food during the patient's eating process, causing inconvenience for the patient to eat. When in use, the end of the traction hook 3 facing the outside of the bracket body 2 is a free end 32, and the free end 32 is convex. The outer surface of the convexity is smoothly transitioned and does not contain sharp corners, which can greatly reduce the irritation of the traction hook 3 to the patient's oral mucosa and is not easy to get caught on food.

[0049] Reference Figure 5 , Figure 5 It is a three-dimensional structural diagram of the bracket in Example 1 when the cover is opened. The cover body 4 can slide relative to the bracket body 2. The bracket body 2 is provided with a slot, and the cover body 4 can slide along the slot to open and close the through slot 20.

[0050] Example 2

[0051] Reference Figure 6-9 , this embodiment 2 provides a bracket in which the traction hook can be hidden, Figure 6 is a three-dimensional structural diagram of the traction hook of the bracket in Example 2 in a hidden state, Figure 7 This is a diagram of the internal structure of the traction hook of the bracket in Example 2 in a hidden state. Figure 8 is a three-dimensional structural diagram of the bracket in Example 2 when the traction hook is in use, Fig. 9 This is a diagram of the internal structure of the bracket in Example 2 when the traction hook is in use. In order to better show the structure, Figure 7 and Fig. 9 In the embodiment, the bracket body is a transparent structure. The bracket structure of Example 2 is basically the same as the bracket in Example 1, and the difference lies in that the specific limiting structure is different.

[0052] The bracket body 2 is provided with an elastic stopper 22 in the accommodating space 21. The elastic stopper 22 is used to limit the rotation angle of the traction hook 3. The elastic stopper 22 contacts the side of the traction hook 3. The shape of the elastic stopper 22 can be arbitrary. Preferably, the surface of the elastic stopper 22 in contact with the traction hook 3 is a smooth curved surface. In this embodiment, the elastic stopper 22 is a cylindrical rod, and the elastic stopper 22 is fixedly connected to the bracket body 2.

[0053] Two limiting protrusions are formed on the side of the traction hook 3, namely, a first limiting protrusion 30 and a second limiting protrusion 31. When the traction hook is not in use, the elastic limiting member 22 abuts against the side wall of the first limiting protrusion 30 to prevent the traction hook 3 from moving, so that the traction hook is accommodated in the accommodation groove when not in use. The first limiting protrusion 30 can fix the traction hook 3 in a hidden position to prevent the traction hook 3 from automatically falling out.

[0054] When the traction hook 3 is used, force is applied to rotate the traction hook 3 , and the first limiting protrusion 30 squeezes the elastic limiting member 22 to cause it to deform. Then, the first limiting protrusion 30 passes over the elastic limiting member 22 , and one end of the traction hook 3 leaves the accommodating space 21 .

[0055] Reference Figure 8-9 When the traction hook 3 moves to the use position, the elastic limiting member 22 abuts against the side wall of the second limiting protrusion 31 to prevent the traction hook 3 from further rotating, and the second limiting protrusion 31 controls the maximum rotation angle of the traction hook 3. In order to better fix the traction hook 3 in the use position, when the traction hook 3 rotates to the use position, the two sides of the elastic limiting member 22 abut against the side walls of the first limiting protrusion 30 and the second limiting protrusion 31 respectively, that is, the first limiting protrusion 30 and the second limiting protrusion 31 clamp the elastic limiting member 22, which can keep the traction hook 3 from rotating in the use position.

[0056] Example 3

[0057] Reference Figure 10-14 , Fig.10 is a three-dimensional structural diagram of the traction hook of the bracket in Example 3 in a hidden state, Fig.11 is a diagram of the internal structure of the bracket in Example 3 in a hidden state. Fig.12 is a three-dimensional structural diagram of the bracket in Example 3 when the traction hook is in use, Fig.13 is a diagram of the internal structure of the bracket in Example 3 when the traction hook is in use, Fig.14 This is a three-dimensional structural diagram of the bracket in Example 3 when the cover is opened. In order to better show the structure, Fig.11 and Fig.13In the embodiment, the bracket body is a transparent structure. The bracket structure of embodiment 3 is basically the same as the bracket in embodiment 1, except that the shape of the outer surface of the bracket body 2 is different. When the traction hook 3 is placed in the accommodating space 21, the outer surface of the traction hook 3 matches the outer surface of the bracket body 2 to form a smooth curved surface. In this embodiment, the outer surface of the traction hook 3 matches the outer surface of the bracket body 2 to form a spherical shape, and the outer surface of the traction hook 3 is a smooth curved surface. When the traction hook 3 is in use, one end facing the outside of the bracket body 2 is hook-shaped, and the hook can be used to hang traction accessories such as compression springs and rubber rings.

[0058] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims and equivalent technologies of the present invention, the present invention is also intended to include these changes and modifications.

Claims

1. A bracket with a hidden traction hook, characterized in that: include: Base plate; A bracket body is arranged on the bottom plate, and a receiving space is arranged in the bracket body, and the receiving space is a receiving groove opened on the bracket body; and A traction hook, the traction hook is located in the accommodating groove, and the traction hook can rotate relative to the bracket body; Wherein, the bracket body also includes an elastic limiting member arranged in the accommodating space, and the traction hook is provided with a first limiting protrusion, and the side wall of the first limiting protrusion can abut against the elastic limiting member, so that the traction hook is accommodated in the accommodating groove when not in use.

2. The bracket with hidden traction hook according to claim 1, characterized in that: The bracket body is provided with a rotating shaft, and the traction hook is rotatably connected to the bracket body via the rotating shaft.

3. The concealable bracket of the traction hook according to claim 2, characterized in that: The rotation axis is arranged perpendicular to the bottom plate.

4. The concealable bracket of the traction hook according to claim 1, characterized in that: The bracket body includes a limiting piece. When the traction function of the traction hook needs to be used, force is applied to rotate the traction hook, and the first limiting protrusion squeezes the elastic limiting piece to cause it to deform. Then the first limiting protrusion passes over the elastic limiting piece. When the traction hook is rotated to the use position, the limiting piece abuts against the traction hook to prevent the traction hook from continuing to rotate.

5. The concealable bracket of the traction hook according to claim 4, characterized in that: The limiting member is a side wall of the accommodating groove or a part of the side wall of the accommodating groove.

6. The bracket with hidden traction hook according to claim 1, characterized in that: A second limiting protrusion is also provided on the traction hook. When the traction function of the traction hook needs to be used, force is applied to rotate or move the traction hook, and the first limiting protrusion squeezes the elastic limiting piece to cause it to deform, and then the first limiting protrusion passes over the elastic limiting piece. When the traction hook is rotated or moved to the use position, the second limiting protrusion abuts against the traction hook to prevent the traction hook from continuing to rotate.

7. The concealable bracket of the traction hook according to claim 6, characterized in that: When the towing hook is rotated to the use position, two sides of the elastic limiting member respectively abut against the side walls of the first limiting protrusion and the second limiting protrusion.

8. The concealable bracket of the traction hook according to any one of claims 1 to 7, characterized in that: When the traction hook is placed in the accommodating space, the outer surface of the traction hook matches the outer surface of the bracket body to form a smooth curved surface.

9. The bracket with hidden traction hook according to claim 8, characterized in that: The smooth curved surface is ellipsoidal or spherical.

10. The concealable bracket of the traction hook according to any one of claims 1 to 7, characterized in that: The outer surface of the traction hook is in a smooth curved shape.

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