阅读说明：本技术 一种牵引钩可隐藏的颊面管 (Buccal tube with hidden traction hook ) 是由 张钦辉 徐梓恩 于 2019-09-25 设计创作，主要内容包括：本发明公开了一种牵引钩可隐藏的颊面管,包括相连的底板和主体,主体上设有可相对其发生移动或转动的牵引钩,主体内设有一容置空间,在不使用所述牵引钩时,牵引钩置于所述容置空间内；使用牵引钩时,牵引钩向外转动或移动离开容置空间；本发明将传统的颊面管上设置的固定式牵引钩改成可转动或可移动式牵引钩,不需要使用牵引钩时,将其隐藏至容置空间内,能够大大降低牵引钩对患者口腔粘膜的刺激,减轻患者的不适,需要使用牵引钩时,通过转动或移动将其从容置空间取出即可,不影响牵引钩的使用。(The invention discloses a buccal tube with a hidden draw hook, which comprises a bottom plate and a main body which are connected, wherein the main body is provided with the draw hook which can move or rotate relative to the main body; when the towing hook is used, the towing hook rotates outwards or moves away from the accommodating space; the fixed type traction hook arranged on the traditional buccal tube is changed into the rotatable or movable type traction hook, when the traction hook is not needed, the traction hook is hidden in the accommodating space, so that the stimulation of the traction hook to the oral mucosa of a patient can be greatly reduced, the discomfort of the patient is relieved, when the traction hook is needed, the traction hook can be taken out from the accommodating space through rotation or movement, and the use of the traction hook is not influenced.)

1. A buccal tube, characterized in that: the traction device comprises a main body and a traction part, wherein the traction part is switched between a working state and a non-working state; the traction part is accommodated in the main body when in a non-working state, and is arranged on the main body to realize traction when in a working state.

2. The buccal tube as set forth in claim 1, wherein: the main body is provided with an open accommodating space for accommodating a traction component in a non-working state.

3. The buccal tube as set forth in claim 1, wherein: the traction component realizes state switching through displacement or rotation.

4. The buccal tube as set forth in claim 1, wherein: the traction part is hinged with the side wall of the accommodating space and rotates relative to the main body; when the free end of the traction component enters the accommodating space, the traction component is in a non-working state, and when the free end of the traction component leaves the accommodating space, the traction component is in a working state.

5. The buccal tube as set forth in claim 1, wherein: the traction component is clamped with the side wall of the accommodating space and moves axially relative to the accommodating space; when the free end of the traction part moves towards the outer side of the main body, the traction part is in a working state, and the traction part is switched to a non-working state after being reset.

Technical Field

The invention relates to the technical field of orthodontic appliances, in particular to a buccal tube.

Background

The buccal tube is an important component of the orthodontic fixing appliance and consists of a hollow tube, a traction hook and a bottom plate. Generally, the buccal tube is directly adhered or adhered and fixed on the molar tooth surface through a belt ring, the correcting arch wire passes through the hollow tube of the buccal tube, and the buccal tube can play a role in fixing the arch wire. The buccal tube is provided with a traction hook for hanging a rubber ring or a tension spring and the like for performing intramaxillofacial or intermaxillary traction. Usually, the use of the traction hook does not extend through the whole orthodontic cycle, but only is used in the early stage or the middle and later stages of the orthodontics, but the traction hooks set on the buccal tube in the current market are all fixed traction hooks, and the traction hooks cannot be removed when the traction hooks are not used in the current buccal tube. The structure of the traction hook stimulates oral mucosa due to functional requirements, strong foreign body sensation is easy to be brought to patients, and the traction hooks in the market all have favorable angle structures, so that discomfort is brought to the patients. In order to reduce the foreign body sensation of a patient, the buccal tube which can be hidden when the traction hook is not used is provided, so that the discomfort brought to the patient in the use process of the buccal tube can be greatly reduced.

Disclosure of Invention

In view of the above technical problems, the present invention provides a buccal tube with a concealable pulling hook.

The technical scheme adopted by the invention for solving the technical problem is as follows:

a buccal tube comprises a bottom plate and a main body which are connected, wherein a traction hook which can move or rotate relative to the main body is arranged on the main body, an accommodating space is arranged in the main body, and when the traction hook is not used, the traction hook is arranged in the accommodating space; when the towing hook is used, one end of the towing hook is outwards rotated or moved away from the accommodating space.

In some preferred embodiments, a rotating shaft is provided on the main body, and the towing hook is rotatably connected with the main body through the rotating shaft.

In a further preferred embodiment, the axis of rotation is parallel or perpendicular to the base plate.

In other preferred embodiments, the accommodating space is an elongated space, one end of the towing hook is inserted into the accommodating space, and the towing hook is movable along an extending direction of the accommodating space.

In some preferred embodiments, the main body further comprises a stopper for limiting a rotation angle or a movement displacement of the towing hook.

In a further preferred embodiment, the stopper comprises an elastic stopper.

In some further preferred embodiments, two limiting protrusions are formed on a side surface of the towing hook, when the towing hook is not used, the elastic limiting part abuts against a side wall of the first limiting protrusion to block the towing hook from rotating or moving, when the towing hook is used, a force is applied to rotate or move the towing hook, the first limiting protrusion extrudes the elastic limiting part to deform the elastic limiting part, then the first limiting protrusion passes over the elastic limiting part, and when the towing hook rotates or moves to a use position, the elastic limiting part abuts against a side wall of the second limiting protrusion to block the towing hook from continuing rotating or moving.

In some further preferred embodiments, when the towing hook rotates or moves to the use position, two sides of the elastic limiting piece respectively abut against the side walls of the first limiting protrusion and the second limiting protrusion.

In some further preferred embodiments, the main body includes a limiting part and an elastic limiting part, the elastic limiting part is disposed in the accommodating space, a third limiting protrusion is formed on a side surface of the traction hook, when the traction hook is not used, the elastic limiting part abuts against a side wall of the third limiting protrusion to block the traction hook from rotating, when the traction hook is used, a force is applied to rotate or move the traction hook, the third limiting protrusion extrudes the elastic limiting part to deform, then the third limiting protrusion passes over the elastic limiting part, and when the traction hook rotates or moves to a use position, the limiting part abuts against the traction hook to block the traction hook from continuing to rotate or move.

In still other preferred embodiments, when the towing hook is rotated or moved to the use position, two sides of the third limiting protrusion respectively abut against the elastic limiting piece and the limiting piece.

In some preferred embodiments, when the towing hook is placed in the accommodating space, the outer surface of the towing hook matches with the outer surface of the main body to form a smooth curved surface.

In a further preferred embodiment, the smoothly curved surface is an ellipsoid-like or sphere-like shape.

In some preferred embodiments, the outer surface of the towing hook is smoothly curved.

In some preferred embodiments, the end of the towing hook facing the outside of the main body when in use is in the shape of a hook or a protrusion, and the hook or the protrusion can be used for hanging a towing accessory.

Compared with the prior art, the method has the following positive effects: the invention provides a buccal tube with a concealable traction hook, which comprises a bottom plate and a main body which are connected, wherein the main body is provided with the traction hook which can move or rotate relative to the main body; when the towing hook is used, the towing hook rotates outwards or moves away from the accommodating space; the fixed type traction hook arranged on the traditional buccal tube is changed into the rotatable or movable type traction hook, when the traction hook is not needed, the traction hook is hidden in the accommodating space, so that the stimulation of the traction hook to the oral mucosa of a patient can be greatly reduced, the discomfort of the patient is relieved, when the traction hook is needed, the traction hook can be taken out from the accommodating space through rotation or movement, and the use of the traction hook is not influenced.

The invention is further illustrated by the following figures and examples.

Drawings

Fig. 1 is a perspective view of the buccal tube in a state where a hook is hidden in embodiment 1.

Fig. 2 is an internal structure view of the buccal tube in a state where the hook is hidden in embodiment 1.

Fig. 3 is a perspective view of the buccal tube in the state of use of the hook in example 1.

Fig. 4 is an internal configuration view of a buccal tube in a state where a hook is used in example 1.

Fig. 5 is a perspective view showing another angle of the buccal tube in the state of use of the hook in example 1.

Fig. 6 is a perspective view of the buccal tube in a state where the hook is hidden in embodiment 2.

Fig. 7 is an internal structure view of a buccal tube in a state where a hook is hidden in embodiment 2.

Fig. 8 is an exploded view of a buccal tube in example 2.

Fig. 9 is a perspective view of the buccal tube in a state where the hook is used in example 2.

Fig. 10 is an internal configuration view of a buccal tube in a state where a hook is used in example 2.

Fig. 11 is a perspective view of the buccal tube in a state where the hook is hidden in embodiment 3.

Fig. 12 is an internal structure view of a buccal tube in a state where a hook is hidden in embodiment 3.

Fig. 13 is an exploded view of a buccal tube in example 3.

Fig. 14 is a perspective view of the buccal tube in a state in which the hook is used in example 3.

Fig. 15 is an internal configuration view of a buccal tube in a state where a hook is used in example 3.

Fig. 16 is a perspective view of the buccal tube in a state where the hook is hidden in embodiment 4.

Fig. 17 is a perspective view of the buccal tube in a state in which the hook is used in example 4.

Fig. 18 is an exploded view of a buccal tube in example 4.

Fig. 19 is a perspective view of a tow hook according to embodiment 4.

Fig. 20 is a perspective view of the main body of embodiment 4.

Detailed Description

Example 1:

referring to fig. 1, fig. 1 is a perspective view of a buccal tube in an embodiment 1 in a state that a hook is hidden, and the embodiment provides a buccal tube, which includes a base plate 1 and a body 2 connected with each other, wherein the base plate 1 is used for being directly adhered or adhered and fixed on an anchorage tooth surface through a belt loop, and the base plate 1 and the body 2 are fixedly connected. The main body 2 is provided with a through hole 20 for the arch wire to pass through, and the shape of the through hole 20 can be a circular hole or a square hole known in the market, or a hole formed by combining a through groove and a cover plate, in the 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 towing hook 3 which can rotate relative to the main body, in order to more conveniently show the structure of the buccal tube, fig. 2 shows the inner state of the buccal tube when the towing hook is not used, the main body 2 in fig. 2 is in a transparent state, and as can be seen from fig. 2, an accommodating space 21 is arranged in the main body 2, and when the towing hook 3 is not used, the towing hook 3 is arranged in the accommodating space 21. The shape of the accommodating space 21 may be arbitrary, and in this embodiment, the shape of the accommodating space 21 matches the shape of the towing hook 3. The accommodating space 21 and the through hole 20 may or may not be communicated with each other, and in this embodiment, the accommodating space 21 and the through hole 20 are not communicated with each other. When the towing hook 3 is placed in the accommodating space 21, the outer surface of the towing hook 3 is matched with the outer surface of the main body 2 to form a smooth curved surface, and in this embodiment, the outer surface of the towing hook 3 is matched with the outer surface of the main body 2 to form a smooth curved surface similar to a semi-cylindrical surface. Buccal surface pipe on the existing market is the semicircle cylinder type, and the both ends that the through-hole runs through have sharp structure, and it also has sharp structure to pull the hook, all can make the patient have strong foreign body and feel, and the use is felt not good, pulls the hook in this embodiment and can hide, and the surface of buccal surface pipe forms smooth curved surface form, can show improvement patient's use impression.

Referring to fig. 3 to 4, fig. 3 is a perspective view of a buccal tube in a state of using a hook in embodiment 1, fig. 4 is an internal view of the buccal tube in the state of using the hook in embodiment 1, and the main body 2 further includes a stopper 24, and the stopper 24 is used to limit a rotation angle of the hook 3. The limiting member 24 is fixedly connected to the main body 2, and in this embodiment, the limiting member 24 is integrally formed with the main body 2. When the towing hook 3 rotates to the use position, the limiting member 24 abuts against the towing hook 3 to stop the towing hook 3 from further rotating, and the limiting member 24 limits the maximum rotation angle of the towing hook 3.

The main body 2 further includes an elastic limiting member 22 disposed in the accommodating space 21, and the elastic limiting member 22 contacts with a side surface of the towing hook 3. The shape of the elastic limiting member 22 may be arbitrary, and preferably, the surface of the elastic limiting member 22 contacting the towing hook 3 is a smooth curved surface. In this embodiment, the elastic limiting member 22 is a cylindrical rod, the main body 2 is provided with holes for inserting two ends of the elastic limiting member 22, two ends of the elastic limiting member 22 are respectively inserted into the two holes, and the elastic limiting member 22 can axially rotate.

The side of the traction hook 3 is provided with a third limiting protrusion 34, when the traction hook is not used, the elastic limiting part 22 abuts against the side wall of the third limiting protrusion 34 to stop the rotation of the traction hook 3, and the elastic limiting part 22 and the third limiting protrusion 34 fix the traction hook 3 at a hidden position and cannot rotate out automatically. When the traction hook 3 is used, the traction hook 3 is rotated by applying force, the third limiting protrusion 34 extrudes the elastic limiting member 22 to deform, then the third limiting protrusion 34 passes over the elastic limiting member 22, and one end of the traction hook 3 leaves the accommodating space 21.

When the pulling hook 3 needs to be rotated back to the hidden position, only the pulling hook 3 needs to be rotated by applying an inward force, the third limiting protrusion 34 extrudes the elastic limiting member 22 to deform, and then the third limiting protrusion 34 can cross the elastic limiting member 22, so that the pulling hook 3 returns to the hidden position.

When in use, one end of the traction hook 3 facing the outside of the main body 2 is a free end 32, a recess 33 is formed at the position, close to the free end 32, of the traction hook 3, and the free end 32 is made to be convex due to the recess 33 and can be used for hanging rubber rings or pulling rings and the like. The outer surface of the free end 32 is in smooth transition without sharp corners, so that the stimulation of the traction hook 3 to the oral mucosa of a patient can be greatly reduced, and food is not easy to hook.

The traction hook is used for hanging a rubber ring or a tension spring and the like for performing intramaxillary or intermaxillary traction, the traction hook is usually used not throughout the whole orthodontic period but only in the early stage or the middle and later stages of orthodontics, but the traction hooks set on the buccal tube in the market at present are fixed traction hooks, and cannot be removed when the traction hook is not used. In the buccal tube of the present embodiment, a fixed hook of a conventional buccal tube is changed into a movable hook, when the hook 3 is not needed to be used, the hook 3 is hidden in the accommodating space 21 inside the body 2, and when the hook 3 is needed to be used, the hook 3 is pulled out of the accommodating space 21, so that discomfort of the patient when the hook 3 is not used can be avoided.

The traction hooks of all buccal tubes in the market are hook bodies formed by bending cylindrical bodies, on one hand, the hook bodies contain favorable angle structures, easily stimulate oral mucosa of patients to cause stronger foreign body feeling and discomfort, and on the other hand, the hook bodies easily hook food in the eating process of the patients to cause inconvenience for the patients to eat. When the hook is used, one end of the traction hook 3, which faces the outside of the main body 2, is a free end 32, the free end 32 is a protrusion, the outer surface of the protrusion is in smooth transition, no sharp corner is contained, the stimulation of the traction hook 3 to the oral mucosa of a patient can be greatly reduced, and the hook is not easy to hook food.

Example 2:

referring to fig. 6, fig. 6 is a perspective view of a buccal tube in a hidden state of a hook in embodiment 2, and this embodiment provides a buccal tube, which includes a base plate 1 and a body 2 connected with each other, the base plate 1 is used for being directly adhered or adhered and fixed on an anchorage tooth surface through a belt loop, and the base plate 1 and the 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 circular hole or a square hole known in the market, or a hole formed by combining a through groove and a cover plate, and in the embodiment, the through hole 20 is a square hole. The main body 2 is provided with a towing hook 3 which can move relative to the main body, fig. 1 shows a state of a buccal tube when the towing hook is not used, in order to more conveniently show a structure of the buccal tube, in fig. 7, the main body 2 is in a transparent state, a dotted line shows an internal structure of the main body 2, as can be seen from fig. 7, an accommodating space 21 is provided in the main body 2, and when the towing hook 3 is not used, the towing hook 3 is placed in the accommodating space 21. The shape of the accommodating space 21 may be arbitrary, and in this embodiment, the accommodating space 21 is a strip-shaped space. The accommodating space 21 is located above the through hole 20, the accommodating space 21 and the through hole 20 may or may not be communicated with each other, and in this embodiment, the accommodating space 21 and the through hole 20 are communicated with each other.

The main body 2 is provided with an elastic limiting member 22 in the accommodating space 21, the elastic limiting member 22 is used for limiting the movement displacement of the traction hook 3, and the elastic limiting member 22 is in contact with the side surface of the traction hook 3.

Referring to fig. 8 and 8, which are exploded views of a buccal tube according to embodiment 2, the shape of the elastic stopper 22 may be arbitrary, and preferably, a surface of the elastic stopper 22 contacting the hook 3 is a smooth curved surface. In this embodiment, the elastic limiting member 22 is a cylindrical rod, the main body 2 is provided with holes for inserting two ends of the elastic limiting member 22, two ends of the elastic limiting member 22 are respectively inserted into the two holes, and the elastic limiting member 22 can axially rotate.

Two limiting bulges, namely a first limiting bulge 30 and a second limiting bulge 31, are formed on the side surface of the towing hook 3. When the draw hook is not used, the elastic limiting piece 22 abuts against the side wall of the first limiting protrusion 30 to prevent the draw hook 3 from moving, and the first limiting protrusion 30 can fix the draw hook 3 at a hidden position to prevent the draw hook 3 from automatically falling out.

When the traction hook 3 is used, force is applied to pull the traction hook 3 to move towards one end of the outer side of the main body 2, the first limiting protrusion 30 extrudes the elastic limiting part 22 to enable the elastic limiting part 22 to deform, then the first limiting protrusion 30 passes through the elastic limiting part 22, and one end of the traction hook 3 leaves the accommodating space 21.

Referring to fig. 9 to 10, fig. 9 is a perspective view of a buccal tube in a use state of a hook according to embodiment 2, fig. 10 is an internal structure view of a buccal tube in a use state of a hook according to embodiment 2, in order to show the internal structure, the main body 2 is in a transparent state in fig. 10, when the hook 3 moves to a use position, the elastic stopper 22 abuts against a side wall of the second stopper protrusion 31 to stop the hook 3 from moving further, and the second stopper protrusion 31 controls the maximum movement displacement of the hook 3. In order to better fix the towing hook 3 at the use position, when the towing hook 3 moves to the use position, two sides of the elastic limiting piece 22 respectively 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 piece 22.

The traction hook is used for hanging a rubber ring or a tension spring and the like for performing intramaxillary or intermaxillary traction, the traction hook is usually used not throughout the whole orthodontic period but only in the early stage or the middle and later stages of orthodontics, but the traction hooks set on the buccal tube in the market at present are fixed traction hooks, and cannot be removed when the traction hook is not used. In the buccal tube of the present embodiment, a fixed hook of a conventional buccal tube is changed into a movable hook, when the hook 3 is not needed to be used, the hook 3 is hidden in the accommodating space 21 inside the body 2, and when the hook 3 is needed to be used, the hook 3 is pulled out of the accommodating space 21, so that discomfort of the patient when the hook 3 is not used can be avoided.

The traction hooks of all buccal tubes on the market are hook bodies formed by bending cylindrical bodies, on one hand, the hook bodies contain favorable angle structures, easily stimulate oral mucosa of a patient to cause stronger foreign body feeling and discomfort, and on the other hand, the hook bodies easily hook food in the eating process of the patient to cause trouble in eating of the patient. When the hook is used, one end of the traction hook 3, which faces the outside of the main body 2, is a free end 32, the free end 32 is a protrusion, the outer surface of the protrusion is in smooth transition, no sharp corner is contained, the stimulation of the traction hook 3 to the oral mucosa of a patient can be greatly reduced, and the hook is not easy to hook food.

Example 3:

referring to fig. 11, fig. 11 is a perspective view of a buccal tube in a hidden state of a hook in embodiment 3, and this embodiment provides a buccal tube, which includes a base plate 1 and a main body 2 connected with each other, where the base plate 1 is used to be directly adhered or fixed on an anchorage tooth surface, the base plate 1 may also be a common belt ring, and 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 circular hole or a square hole known in the market, or a through hole formed by combining a through groove and a cover plate, and in the embodiment, the through hole 20 is a square hole. The main body 2 is provided with a towing hook 3 which can rotate relative to the main body. Fig. 11 shows a state of a cheek tube when a hook is not used, fig. 12 is an internal structure view of the cheek tube in embodiment 3 in a hidden state of the hook, in order to more conveniently show a structure of the cheek tube, fig. 12 shows the main body 2 in a transparent state, and a dotted line shows an internal structure of the main body 2, as seen from fig. 12, an accommodating space 21 is provided in the main body 2, and when the hook 3 is not used, the hook 3 is placed in the accommodating space 21. The shape of the accommodating space 21 may be any, and in this embodiment, the shape of the accommodating space 21 matches the shape of the towing hook 3, and is an arc-shaped space.

When the towing hook 3 is placed in the accommodating space 21, the outer surface of the towing hook 3 is matched with the outer surface of the main body 2 to form a smooth curved surface, the smooth curved surface may be a smooth arbitrary shape, preferably, an ellipsoid-like shape or a sphere-like shape may be selected, and in this embodiment, the smooth curved surface is an ellipsoid-like shape. The outer surface of the traction hook 3 is matched with the outer surface of the main body 2 to form a smooth curved surface, so that the stimulation of a buccal tube to oral mucosa of a patient can be greatly reduced, and the discomfort of the patient is reduced.

The main body 2 is provided with a rotating shaft 23, and the traction hook 3 is rotatably connected with the main body 2 through the rotating shaft 23. The direction of the rotating shaft 23 can be arbitrarily set, and in the present embodiment, the rotating shaft 23 is perpendicular to the bottom plate 1.

The main body 2 is provided with an elastic limiting member 22 in the accommodating space 21, the elastic limiting member 22 is used for limiting the rotation angle of the traction hook 3, and the elastic limiting member 22 contacts with the side surface of the traction hook 3.

Referring to fig. 13, fig. 13 is an exploded view of a buccal tube according to embodiment 3, in which the end of the hook 3 facing the outside of the body 2 is a free end 32, the free end 32 is in a hook shape, the outer surface of the end of the hook 3 facing the outside of the body 2 is in a smooth curved surface shape, the outer surface of the hook 3 is smoothly transitioned without sharp corners, and the irritation of the hook 3 to the oral mucosa of a patient can be greatly reduced, and food is not easily caught. The shape of the elastic limiting member 22 may be arbitrary, and preferably, the surface of the elastic limiting member 22 contacting the towing hook 3 is a smooth curved surface. In this embodiment, the elastic limiting member 22 is a cylindrical rod, and the main body 2 is fixedly connected to the elastic limiting member 22.

Two limiting bulges, namely a first limiting bulge 30 and a second limiting bulge 31, are formed on the side surface of the towing hook 3. When the draw hook is not used, the elastic limiting member 22 abuts against the side wall of the first limiting protrusion 30 to stop the draw hook 3 from rotating, and the first limiting protrusion 30 and the elastic limiting member 22 can fix the draw hook 3 at a hidden position to prevent the draw hook 3 from automatically rotating out. When the traction hook 3 is used, force is applied to rotate one end, facing the outer side of the main body 2, of the traction hook 3, the first limiting protrusion 30 extrudes the elastic limiting part 22 to enable the elastic limiting part 22 to deform, then the first limiting protrusion 30 passes through the elastic limiting part 22, and one end of the traction hook 3 leaves the accommodating space 21.

Referring to fig. 14 to 15, fig. 14 is a perspective view of a buccal tube in a use state of a hook according to embodiment 3, fig. 15 is an internal view of the buccal tube in the use state of the hook according to embodiment 3, in order to show the internal structure, the main body 2 in fig. 15 is in a transparent state, when the hook 3 rotates to a use position, the elastic stopper 22 abuts against a side wall of the second stopper protrusion 31 to stop the hook 3 from rotating, and the second stopper protrusion 31 limits a maximum rotation angle of the hook 3. In order to better fix the towing hook 3 at the use position, when the towing hook 3 rotates to the use position, two sides of the elastic limiting piece 22 respectively 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 piece 22.

Example 4:

referring to fig. 16, fig. 16 is a perspective view of a buccal tube in a hidden state of a hook in embodiment 4, and this embodiment provides a buccal tube, which includes a base plate 1 and a body 2 connected with each other, the base plate 1 is used for being directly adhered or adhered and fixed on an anchorage tooth surface through a belt loop, and the base plate 1 and the 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 circular hole or a square hole known in the market, or a through hole formed by combining a through groove and a cover plate, and in the embodiment, the through hole 20 is a square hole. The main body 2 is provided with a towing hook 3 which can rotate relative to the main body.

When the towing hook 3 is placed in the accommodating space 21, the outer surface of the towing hook 3 is matched with the outer surface of the main body 2 to form a smooth curved surface, the smooth curved surface may be a smooth arbitrary shape, preferably, an ellipsoid-like shape or a sphere-like shape may be selected, and in this embodiment, the smooth curved surface is an ellipsoid-like shape. The outer surface of the traction hook 3 is matched with the outer surface of the main body 2 to form a smooth curved surface, so that the stimulation of a buccal tube to oral mucosa of a patient can be greatly reduced, and the discomfort of the patient is reduced.

Referring to fig. 17, fig. 17 is a perspective view illustrating a hook for pulling a cheek tube according to embodiment 4 in a use state, and as can be seen from fig. 17, an accommodating space 21 is provided in the body 2, and when the hook 3 is not used, the hook 3 is placed in the accommodating space 21. The shape of the accommodating space 21 may be arbitrary, and in the present embodiment, the shape of the accommodating space 21 matches the shape of the towing hook 3. When the towing hook 3 is used, the towing hook 3 can be used by rotating the towing hook 3 with a tool such as a hook member.

Referring to fig. 18, fig. 18 is an exploded view of a buccal tube according to embodiment 4, wherein a rotation shaft 23 is provided on the body 2, and the hook 3 is rotatably coupled to the body 2 through the rotation shaft 23. The direction of the rotating shaft 23 can be arbitrarily set, and in the present embodiment, the rotating shaft 23 is parallel to the bottom plate 1. The main body 2 is provided with holes 25 into which both ends of the rotary shaft 23 are inserted, both ends of the rotary shaft 23 are inserted into the holes 25, and the rotary shaft 23 is rotatable around a shaft in the holes 25.

The main body 2 further includes a limiting member 24 disposed in the accommodating space 21, and the limiting member 24 is configured to limit a rotation angle of the towing hook 3. The limiting member 24 is fixedly connected to the main body 2, and in this embodiment, the limiting member 24 is integrally formed with the main body 2. When the towing hook 3 rotates to the use position, the limiting member 24 abuts against the towing hook 3 to block the towing hook 3 from further rotating, and the limiting member 24 limits the maximum rotation angle of the towing hook 3.

When in use, one end of the traction hook 3 facing the outside of the main body 2 is a free end 32, a recess 33 is formed at the position, close to the free end 32, of the traction hook 3, and the free end 32 is made to be convex due to the recess 33 and can be used for hanging rubber rings or pulling rings and the like. The outer surface of the free end 32 is in smooth transition without sharp corners, so that the stimulation of the traction hook 3 to the oral mucosa of a patient can be greatly reduced, and food is not easy to hook.

The towing hook 3 is arranged on the upper side of the main body 2, and the towing hook 3 can be kept in a hidden state under the action of gravity. The hook member is used to hook out the towing hook 3, and the towing hook 3 can be held in the use position by a towing member such as a rubber ring, a tension spring, or the like.

In order to further improve the solution, the towing hook 3 is fixed in the concealed position and in the use position, a more preferred embodiment is described below.

Referring to fig. 19 to 20, fig. 19 is a three-dimensional structure view of a towing hook in embodiment 4, fig. 20 is a three-dimensional structure view of a main body in embodiment 4, the main body 2 is further provided with an elastic limiting member 22 in the accommodating space 21, a third limiting protrusion 34 is provided on a side surface of the towing hook 3, when the towing hook is not used, the elastic limiting member 22 abuts against a side wall of the third limiting protrusion 34 to block the towing hook 3 from rotating, and the elastic limiting member 22 and the third limiting protrusion 34 fix the towing hook 3 at a hidden position and cannot rotate out automatically. When the traction hook 3 is used, the traction hook 3 is rotated towards one end of the outer side of the main body 2 by applying force, the third limiting protrusion 34 extrudes the elastic limiting part 22 to deform, then the third limiting protrusion 34 passes over the elastic limiting part 22, and one end of the traction hook 3 leaves the accommodating space 21. When the towing hook 3 rotates to the use position, the third limiting protrusion 34 abuts against the limiting member 24 to stop the towing hook 3 from further rotating, and the limiting member 24 limits the maximum rotation angle of the towing hook 3.

In a further preferred embodiment, when the towing hook 3 rotates to the use position, two sides of the third 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 third limiting protrusion 34, so as to fix the towing hook 3 at the use position, and cannot rotate. When the pulling hook 3 needs to be rotated back to the hidden position, only the pulling hook 3 needs to be rotated by applying an inward force, the third limiting protrusion 34 extrudes the elastic limiting member 22 to deform, and then the third limiting protrusion 34 can cross the elastic limiting member 22, so that the pulling hook 3 returns to the hidden position.

The present invention is not limited to the above-described embodiments, and various changes and modifications of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.