Buccal tube with concealable towing hook

Abstract

The buccal tube comprises a bottom plate and a main body which are connected, the main body is provided with the traction hook capable of moving or rotating relative to the main body, a containing space is formed in the main body, and when the traction hook is not used, the traction hook is arranged in the containing space; a fixed traction hook arranged on a traditional buccal tube is changed into the rotatable or movable traction hook, when the traction hook does not need to be used, the traction hook is hidden in the containing space, stimulation of the traction hook to oral mucosa of a patient can be greatly reduced, discomfort of the patient can be relieved, and when the traction hook needs to be used, the traction hook is hidden in the containing space. The draw hook can be taken out from the containing space through rotation or movement, and use of the draw hook is not affected.

Description

[0001] This case is a divisional application of the invention patent with application number 201910911881.5, application name and a buccal tube 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, in particular to a buccal tube with a hidden traction hook. Background Art

[0003] The buccal tube is an important component of the fixed orthodontic appliance, which consists of a hollow tube, a traction hook and a base plate. In general, the buccal tube is directly pasted or fixed on the molar tooth surface by a band, and the correction arch wire passes through the hollow tube of the buccal tube, and the buccal tube can play the role of fixing the arch wire. The buccal tube is provided with a traction hook, which is used to hang a rubber ring or a tension spring for intra-maxillary or inter-maxillary traction. Usually, the use of the traction hook is not throughout the entire orthodontic cycle, but only in the early or middle and late stages of orthodontics. However, the traction hooks set on the buccal tubes on the market are all fixed traction hooks, and the current buccal tubes cannot remove the traction hooks when they are not in use. Due to its functional requirements, the traction hook stimulates the oral mucosa and easily gives patients a strong foreign body sensation. In addition, the traction hooks on the market all contain sharp angle structures, which cause discomfort to patients. In order to reduce the foreign body sensation of patients, a buccal tube with a traction hook that can be hidden when not in use can greatly reduce the discomfort caused to patients during the use of the buccal tube. Summary of the invention

[0004] Based on this, it is necessary to provide a buccal tube with a concealed traction hook to address the above technical problems.

[0005] The technical solution adopted by the present invention to solve the technical problem is:

[0006] A buccal tube with a hidden traction hook, comprising:

[0007] Base plate;

[0008] A main body is disposed on the bottom plate, wherein a receiving space is disposed in the main body, and the receiving space is a receiving groove opened on the main body; and

[0009] A traction hook, the traction hook is located in the accommodating groove, and the traction hook can rotate or move relative to the main body;

[0010] Wherein, the main body further 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.

[0011] In one of the embodiments, a rotating shaft is provided on the main body, and the traction hook is rotatably connected to the main body via the rotating shaft.

[0012] In one embodiment, the rotation axis is arranged parallel to the base plate; or

[0013] The rotation axis is arranged perpendicular to the bottom plate.

[0014] In one embodiment, the main body also 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.

[0015] 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.

[0016] 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.

[0017] In one embodiment, when the towing hook is rotated or moved 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.

[0018] 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 main body to form a smooth curved surface.

[0019] In one embodiment, the smooth curved surface is ellipsoidal or spherical.

[0020] In one embodiment, the outer surface of the traction hook is a smooth curved surface.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] The present application provides a buccal tube with a hidden traction hook, wherein a housing space is provided in a main body, wherein the housing space is a housing groove opened on the main body, and the traction hook is located in the housing groove and can rotate or move relative to the main body. When the traction hook is not in use, the traction hook is hidden in the housing 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 housing groove, which can greatly reduce the stimulation of the traction hook to the oral mucosa of the patient and alleviate the patient's discomfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a three-dimensional structural diagram of the buccal tube in Example 1 with the traction hook in a hidden state.

[0026] Figure 2 This is a diagram of the internal structure of the buccal tube in Example 1 when the traction hook is hidden.

[0027] Figure 3 It is a three-dimensional structural diagram of the buccal tube in Example 1 when the traction hook is in use.

[0028] Figure 4 It is a diagram of the internal structure of the buccal tube in Example 1 when the traction hook is in use.

[0029] Figure 5 It is a three-dimensional structural diagram of the buccal tube in Example 1 when the traction hook is in use from another angle.

[0030] Figure 6 It is a three-dimensional structural diagram of the buccal tube in Example 2 with the traction hook in a hidden state.

[0031] Figure 7 This is a diagram of the internal structure of the buccal tube in Example 2 when the traction hook is hidden.

[0032] Figure 8 It is an exploded structural diagram of the buccal tube in Example 2.

[0033] Fig. 9 It is a three-dimensional structural diagram of the buccal tube in Example 2 when the traction hook is in use.

[0034] Fig.10 It is a diagram of the internal structure of the buccal tube in Example 2 when the traction hook is in use.

[0035] Fig.11 It is a three-dimensional structural diagram of the buccal tube in Example 3 with the traction hook in a hidden state.

[0036] Fig.12 This is a diagram of the internal structure of the buccal tube in Example 3 when the traction hook is hidden.

[0037] Fig.13 It is an exploded structural diagram of the buccal tube in Example 3.

[0038] Fig.14 It is a three-dimensional structural diagram of the buccal tube in Example 3 when the traction hook is in use.

[0039] Fig.15 It is a diagram of the internal structure of the buccal tube in Example 3 when the traction hook is in use.

[0040] Fig.16 It is a three-dimensional structural diagram of the buccal tube in Example 4 with the traction hook in a hidden state.

[0041] Fig.17 It is a three-dimensional structural diagram of the traction hook of the buccal tube in Example 4 when it is in use.

[0042] Fig.18 It is an exploded structural diagram of the buccal tube in Example 4.

[0043] Fig.19 It is a three-dimensional structural diagram of the towing hook in Example 4.

[0044] Fig. 20 It is a three-dimensional structural diagram of the main body in Example 4. DETAILED DESCRIPTION

[0045] Example 1

[0046] Reference Figure 1 , Figure 1 It is a three-dimensional structural diagram of the traction hook of the buccal tube in Example 1 in a hidden state. This embodiment provides a buccal tube, including a connected base plate 1 and a main body 2. The base plate 1 is used to be directly pasted or fixed on the tooth surface of the supporting tooth through a ring. The main body 2 is arranged on the base plate 1, and the base plate 1 and the main body 2 are fixedly connected. A through hole 20 for the arch wire to pass through is provided in the main body 2. The shape of the through hole 20 can be a round hole or a square hole known in the market, or it can be a hole formed by combining a through groove and a cover plate. In this embodiment, the through hole 20 is a hole formed by combining a through groove and a cover plate. The main 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 buccal tube, Figure 2The display shows the internal state of the buccal tube when the traction hook is not used. Figure 2 The main body 2 is in a transparent state. Figure 2 It can be seen that the main body 2 is provided with a containing space 21. In Embodiment 1, the containing space 21 is a containing groove provided on the main body. When the towing hook 3 is not in use, the towing hook 3 is placed in the containing space 21. The shape of the containing space 21 can be arbitrary. In the present embodiment, the shape of the containing space 21 matches the shape of the towing hook 3. The containing space 21 and the through hole 20 can be connected to each other or not. In the present embodiment, the containing space 21 is not connected to the through hole 20. When the towing hook 3 is placed in the containing space 21, the outer surface of the towing hook 3 matches the outer surface of the main body 2 to form a smooth curved surface. In the present embodiment, the outer surface of the towing hook 3 matches the outer surface of the main body 2 to form a smooth curved surface similar to a semi-cylindrical surface. Currently, the buccal tubes on the market are all semi-cylindrical in shape, with sharp structures at both ends of the through hole, and the traction hooks also have sharp structures, which will make patients have a strong sense of foreign body and a poor experience in use. In this embodiment, the traction hook can be hidden, and the outer surface of the buccal tube forms a smooth curved surface, which can significantly improve the patient's experience of use.

[0047] Reference Figure 3-4 , Figure 3 is a three-dimensional structural diagram of the buccal tube in Example 1 when the traction hook is in use, Figure 4 : is an internal structure diagram of the buccal tube in the state of the traction hook in use in Example 1. The main 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 main body 2. In this embodiment, the limiter 24 and the main body 2 are integrally formed. For example, the limiter 24 is a side wall of the accommodating groove. A rotating shaft 23 is provided on the main body 2, and the traction hook 3 is rotatably connected to the main body 2 through the rotating shaft 23. Specifically in Example 1, the rotating shaft 23 is arranged perpendicular to the bottom plate 1. When the traction hook 3 is rotated 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.

[0048] The main body 2 further 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 main 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.

[0049] 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.

[0050] 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.

[0051] The end of the traction hook 3 facing the outside of the main body 2 when in use is a free end 32. The traction hook 3 forms a depression 33 near the free end 32. The depression 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 oral mucosa of the patient and is not easy to hook food.

[0052] 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 buccal tubes on the market are all fixed traction hooks, and the traction hooks cannot be removed when not in use. The buccal tube described in this embodiment changes the fixed traction hook of the conventional buccal tube into a concealable traction hook. When the traction hook 3 is not needed, the traction hook 3 is hidden in the accommodating space 21 inside the main 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 not in use.

[0053] All the traction hooks of buccal tubes on the market are hooks formed by bending a column. On the one hand, they contain sharp corners, which are easy to irritate the oral mucosa of the patient, causing a strong foreign body sensation and discomfort. On the other hand, they are easy to hook 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 main 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 hook food.

[0054] Example 2

[0055] Reference Figure 6 , Figure 6 It is a three-dimensional structural diagram of the traction hook of the buccal tube in Example 2 in a hidden state. This embodiment provides a buccal tube, including a connected base plate 1 and a main body 2. The base plate 1 is used to be directly pasted or fixed on the tooth surface of the supporting tooth through a band. The base plate 1 and the main body 2 are fixedly connected. The main body 2 is provided with a through hole 20 for the arch wire to pass through. The shape of the through hole 20 can be a round hole or a square hole known in the market, or a hole formed by a through groove and a cover plate. In this embodiment, the through hole 20 is a square hole. The main body 2 is provided with a traction hook 3 that can move relative to it. Figure 1 The display shows the state of the buccal tube when the traction hook is not used. In order to more conveniently display the structure of the buccal tube, Figure 7 The main body 2 is transparent, and the dotted line shows the internal structure of the main body 2. Figure 7 As can be seen in the figure, a receiving space 21 is provided in the main body 2. When the towing hook 3 is not in use, the towing hook 3 is placed in the receiving space 21. The receiving space 21 is a receiving groove provided on the main body 2. The shape of the receiving space 21 can be arbitrary. In the present embodiment, the receiving space 21 is a long strip space. The receiving space 21 is located above the through hole 20. The receiving space 21 and the through hole 20 may be connected to each other or not. In the present embodiment, the receiving space 21 and the through hole 20 are connected to each other.

[0056] The main body 2 is provided with an elastic limiting member 22 in the accommodating space 21 . The elastic limiting member 22 is used to limit the movement of the traction hook 3 . The elastic limiting member 22 contacts the side surface of the traction hook 3 .

[0057] Reference Figure 8 , Figure 8 : is an exploded structural diagram of the buccal tube in Example 2. 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. The main 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. The elastic stopper 22 can rotate axially. The elastic stopper can also be fixed by welding or other components so that it cannot rotate axially.

[0058] 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.

[0059] When the traction hook 3 is used, force is applied to pull one end of the traction hook 3 toward the outside of the main body 2, 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.

[0060] Reference Figure 9-10 , Fig. 9 is a three-dimensional structural diagram of the buccal tube in the state of using the traction hook in Example 2, Fig.10 This is a diagram of the internal structure of the buccal tube in Example 2 when the traction hook is in use. In order to facilitate the display of the internal structure, Fig.10 The main body 2 is in a transparent state. 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 moving further. The second limiting protrusion 31 controls the maximum movement displacement of the traction hook 3. In order to better fix the traction hook 3 in the use position, when the traction hook 3 moves 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, that is, the first limiting protrusion 30 and the second limiting protrusion 31 clamp the elastic limiting member 22.

[0061] The traction hook 3 is used to hang a rubber band or a 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 buccal tubes on the market are all fixed traction hooks, and the traction hooks cannot be removed when not in use. The buccal tube described in this embodiment changes the fixed traction hook of the conventional buccal tube into a movable traction hook. When the traction hook 3 is not needed, the traction hook 3 is hidden in the accommodating space 21 inside the main body 2. When it is needed, the traction hook 3 is pulled out of the accommodating space 21, which can avoid the discomfort caused by the traction hook 3 to the patient when not in use.

[0062] All the traction hooks of buccal tubes on the market are hooks formed by bending a column. On the one hand, they contain sharp corners, which are easy to irritate the oral mucosa of the patient, causing a strong foreign body sensation and discomfort. On the other hand, they are easy to hook food during the patient's eating process, causing trouble for the patient to eat. When in use, the end of the traction hook 3 facing the outside of the main 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 hook food.

[0063] Example 3

[0064] Reference Fig.11 , Fig.11 It is a three-dimensional structural diagram of the traction hook of the buccal tube in Example 3 in a hidden state. This embodiment provides a buccal tube, including a connected base plate 1 and a main body 2. The base plate 1 is used to directly stick or fix on the tooth surface of the supporting tooth. The base plate 1 can also be a commonly used belt ring. The base plate 1 and the main body 2 are fixedly connected. The main body 2 is provided with a through hole 20 for the arch wire to pass through. The shape of the through hole 20 can be a round hole or a square hole known in the market, or it can be a through hole formed by combining a through groove and a cover plate. In this embodiment, the through hole 20 is a square hole. The main body 2 is provided with a traction hook 3 that can rotate relative to it. Fig.11 The display shows the state of the buccal tube when the traction hook is not used (that is, when the traction hook of the buccal tube is in a hidden state). Fig.12 This is a diagram of the internal structure of the buccal tube in Example 3, where the traction hook is hidden. In order to more conveniently display the structure of the buccal tube, Fig.12 The main body 2 is transparent, and the dotted line shows the internal structure of the main body 2. Fig.12As can be seen in the figure, a receiving space 21 is provided in the main body 2. When the towing hook 3 is not in use, the towing hook 3 is placed in the receiving space 21. The receiving space is a receiving groove opened on the main body. The shape of the receiving space 21 can be arbitrary. In this embodiment, the shape of the receiving space 21 matches the shape of the towing hook 3 and is an arc-shaped space.

[0065] 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 main body 2 to form a smooth curved surface, and the smooth curved surface can be any smooth shape, preferably, a quasi-ellipsoid or a quasi-spherical shape can be selected. In this embodiment, the smooth curved surface is a quasi-ellipsoid shape. The outer surface of the traction hook 3 matches the outer surface of the main body 2 to form a smooth curved surface, which can greatly reduce the stimulation of the buccal tube to the patient's oral mucosa and reduce the patient's discomfort.

[0066] The main body 2 is provided with a rotating shaft 23, and the traction hook 3 is rotatably connected to the main body 2 via the rotating shaft 23. The direction of the rotating shaft 23 can be set arbitrarily. In this embodiment, the rotating shaft 23 is perpendicular to the bottom plate 1.

[0067] The main body 2 is provided with an elastic limiting member 22 in the accommodating space 21 . The elastic limiting member 22 is used to limit the rotation angle of the traction hook 3 . The elastic limiting member 22 contacts the side surface of the traction hook 3 .

[0068] Reference Fig.13 , Fig.13 It is an exploded structural diagram of the buccal tube of Example 3. When in use, the end of the traction hook 3 facing the outside of the main body 2 is a free end 32, and the free end 32 is hook-shaped. The outer surface of the end of the traction hook 3 facing the outside of the main body 2 is a smooth curved surface. The outer surface of the traction hook 3 is smoothly transitioned and does not contain sharp corners, which can greatly reduce the stimulation of the traction hook 3 to the oral mucosa of the patient and is not easy to hook food. The shape of the elastic limiter 22 can be arbitrary. Preferably, the surface of the elastic limiter 22 in contact with the traction hook 3 is a smooth curved surface. In this embodiment, the elastic limiter 22 is a cylindrical rod, and the main body 2 is provided with a fixed connection with the elastic limiter 22.

[0069] 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 rotating. The first limiting protrusion 30 and the elastic limiting member 22 can fix the traction hook 3 in a hidden position to prevent the traction hook 3 from automatically rotating out. When the traction hook 3 is in use, force is applied to rotate the end of the traction hook 3 toward the outside of the main body 2, the first limiting protrusion 30 squeezes the elastic limiting member 22 to deform it, and 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.

[0070] Reference Figure 14-15 , Fig.14 is a three-dimensional structural diagram of the buccal tube in the use state of the traction hook in Example 3, Fig.15 This is a diagram of the internal structure of the buccal tube in Example 3 when the traction hook is in use. In order to facilitate the display of the internal structure, Fig.15 The main body 2 is in a transparent state. When the traction hook 3 rotates 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 continuing to rotate. The second limiting protrusion 31 limits 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, that is, the first limiting protrusion 30 and the second limiting protrusion 31 clamp the elastic limiting member 22.

[0071] Example 4

[0072] Reference Fig.16 , Fig.16 It is a three-dimensional structural diagram of the traction hook of the buccal tube in Example 4 in a hidden state. This embodiment provides a buccal tube, including a connected base plate 1 and a main body 2. The base plate 1 is used to be directly pasted or fixed on the tooth surface of the support tooth through a band ring. The base plate 1 and the main body 2 are fixedly connected. The main body 2 is provided with a through hole 20 for the arch wire to pass through. The shape of the through hole 20 can be a round hole or a square hole known in the market, or a through hole formed by a through groove and a cover plate. In this embodiment, the through hole 20 is a square hole. The main body 2 is provided with a traction hook 3 that can rotate relative to it.

[0073] 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 main body 2 to form a smooth curved surface, and the smooth curved surface can be any smooth shape, preferably, a quasi-ellipsoid or a quasi-spherical shape can be selected. In this embodiment, the smooth curved surface is a quasi-ellipsoid shape. The outer surface of the traction hook 3 matches the outer surface of the main body 2 to form a smooth curved surface, which can greatly reduce the stimulation of the buccal tube to the patient's oral mucosa and reduce the patient's discomfort.

[0074] Reference Fig.17 , Fig.17 is a three-dimensional structural diagram of the traction hook of the buccal tube in Example 4 in the use state, from Fig.17 As can be seen in the figure, a receiving space 21 is provided in the main body 2. When the traction hook 3 is not in use, the traction hook 3 is placed in the receiving space 21. The receiving space 21 is a receiving groove provided on the main body. 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. When the traction hook 3 is used, the traction hook 3 can be used by rotating the traction hook 3 with a tool such as a hook.

[0075] Reference Fig.18 , Fig.18 : is an exploded structural diagram of the buccal tube in Example 4. The main body 2 is provided with a rotating shaft 23, and the traction hook 3 is rotatably connected to the main body 2 through the rotating shaft 23. The direction of the rotating shaft 23 can be set arbitrarily. In this embodiment, the rotating shaft 23 is parallel to the bottom plate 1. The main body 2 is provided with holes 25 for inserting the two ends of the rotating shaft 23. The two ends of the rotating shaft 23 are inserted into the holes 25, and the rotating shaft 23 can rotate around the axis in the holes 25.

[0076] The main body 2 further includes a limiter 24 disposed in the accommodating space 21, and the limiter 24 is used to limit the rotation angle of the traction hook 3. The limiter 24 is fixedly connected to the main body 2. In this embodiment, the limiter 24 and the main body 2 are integrally formed. For example, the limiter 24 is a part of the side wall of the accommodating groove. When the traction hook 3 rotates to the use position, the limiter 24 abuts against the traction hook 3 to prevent it from further rotating. The limiter 24 limits the maximum rotation angle of the traction hook 3.

[0077] The end of the traction hook 3 facing the outside of the main body 2 when in use is a free end 32. The traction hook 3 forms a depression 33 near the free end 32. The depression 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 oral mucosa of the patient and is not easy to hook food.

[0078] The traction hook 3 is arranged on the upper side of the main body 2, and the traction hook 3 can be kept in a hidden state under the action of gravity. The traction hook 3 is hooked out by a hook, and the traction hook 3 can be kept in a use position by a traction member such as a rubber ring and a tension spring.

[0079] In order to further improve the solution, the towing hook 3 is fixed in the hidden position and the use position. A more optimized implementation is introduced below.

[0080] Reference Figure 19-20 , Fig.19 is a three-dimensional structural diagram of the traction hook in Example 4, Fig. 20 3D is a three-dimensional structural diagram of the main body in Example 4. The main body 2 is further provided with an elastic stopper 22 in the accommodating space 21. The side of the traction hook 3 is provided with a first stopper protrusion 34. When the traction hook is not in use, the elastic stopper 22 abuts against the side wall of the first stopper protrusion 34 to prevent the traction hook 3 from rotating. The elastic stopper 22 and the first stopper protrusion 34 fix the traction hook 3 in a hidden position and cannot be automatically rotated out. When the traction hook 3 is in use, force is applied to rotate the end of the traction hook 3 toward the outside of the main body 2. The first stopper protrusion 34 squeezes the elastic stopper 22 to deform it. Then the first stopper protrusion 34 passes over the elastic stopper 22, and one end of the traction hook 3 leaves the accommodating space 21. When the traction hook 3 is rotated to the use position, the first stopper protrusion 34 abuts against the stopper 24 to prevent the traction hook 3 from rotating further. The stopper 24 limits the maximum rotation angle of the traction hook 3.

[0081] In a further optimized embodiment, when the traction hook 3 is rotated to the use position, the two sides of the first limiting protrusion 34 respectively abut against the elastic limiting member 22 and the limiting member 24, that is, the elastic limiting member 22 and the limiting member 24 clamp the first limiting protrusion 34, and fix the traction hook 3 in the use position and cannot rotate. If the traction hook 3 needs to be rotated back to the hidden position, it is only necessary to apply force inward 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 can pass over the elastic limiting member 22, and the traction hook 3 returns to the hidden position.

[0082] 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.

[0083] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0084] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0085] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0086] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0087] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0088] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0089] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Claims

1. A buccal tube with a hidden traction hook, characterized in that: include: Base plate; A main body is arranged on the bottom plate, and a receiving space is arranged in the main body, and the receiving space is a receiving groove opened on the main body; and A traction hook, the traction hook is located in the accommodating groove, and the traction hook can rotate or move relative to the main body; Wherein, the main body further 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 buccal tube with a hidden traction hook according to claim 1, characterized in that: The main body is provided with a rotating shaft, and the traction hook is rotatably connected with the main body through the rotating shaft.

3. The buccal tube with a hidden traction hook according to claim 2, characterized in that: The rotation axis is arranged parallel to the base plate; or The rotation axis is arranged perpendicular to the bottom plate.

4. The buccal tube with a hidden traction hook according to claim 1, characterized in that: The main body also 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.

5. The buccal tube with a hidden 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 buccal tube with a concealable 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 buccal tube with a hidden traction hook according to claim 6, characterized in that: When the towing hook is rotated or moved 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 buccal tube with a hidden 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 main body to form a smooth curved surface.

9. The buccal tube with a hidden traction hook as claimed in claim 8, characterized in that: The smooth curved surface is ellipsoidal or spherical.

10. The buccal tube with a concealable 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 surface shape.

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