Adjustable orthodontic traction device

Abstract

The invention relates to an adjustable orthodontic traction device. The adjustable orthodontic traction device comprises a head-mounted mechanism and a chin pocket mechanism, the head wearing mechanism comprises a forehead protection plate, a left bandage and a right bandage which are respectively connected to two ends of the forehead protection plate, a limiting block which is used for clamping and fixing the left bandage and the right bandage so as to form a binding head ring with the forehead protection plate, and a head top elastic band which is connected between the limiting block and the front side of the forehead protection plate; the chin pocket mechanism comprises a face length adaptive frame body which is connected with the forehead protection plate and can longitudinally stretch out and draw back, and an orthodontic traction assembly and a chin pocket which are arranged on the face length adaptive frame body up and down; the orthodontic traction assembly is used for assisting traction correction; the chin pocket is used for supporting the chin of the patient. Compared with the prior art, the fixing lengths of the left binding band and the right binding band are adjusted through the limiting blocks, binding head rings of different sizes are formed, so that the fixing device adapts to patients with different head circumferences, the face length adapts to the telescopic function of the frame body so as to adapt to patients with different facial forms, and therefore the fixing device has the high adjustability and the wide application range.

Description

Technical Field

[0001] The present invention belongs to the technical field of orthodontics and relates to an adjustable orthodontic traction device for the oral cavity. Background Art

[0002] In the field of orthodontics, the scope of tooth correction is relatively wide. Various orthodontic techniques are mainly used to correct various malocclusions, including wearing fixed appliances, removable appliances, etc. Doctors need to analyze the etiology mechanism and diagnose and treat according to the actual situation of the patient's teeth, the types of dentofacial deformities, etc., and then select a suitable treatment method in combination with the patient's main complaint. When correcting patients with crossbite (commonly known as underbite), a face mask is usually used as an orthodontic treatment auxiliary device.

[0003] Currently, the orthodontic traction devices on the market can be fixed appliances and external traction devices. Through this effect, the positions of teeth and jaws can be gradually adjusted, and finally the occlusal function can be improved and the facial appearance can be optimized. In addition, these devices are also equipped with fine-tuning devices on the forehead and mandibular parts, further enhancing the wearing experience and comfort of patients. The prior art CN115634064A discloses an orthodontic traction device for the oral cavity, including a wearing mechanism assembly. A protective pad is installed at the bottom of the wearing mechanism assembly, and a protective cotton is arranged on one side of the protective pad. A limiting rod is slidably connected to the inner top wall of the wearing mechanism assembly, and a protective ring is arranged on the outer wall of the limiting rod. The inner bottom wall of the wearing mechanism assembly is fixedly connected with a nose bridge, and a nose pad is installed on the inner wall of the nose bridge. An activity ring is movably connected to the outer wall of the nose bridge, and an adjusting mechanism assembly is fixedly connected to the inner wall of the activity ring; a first limiting groove is formed in the outer wall of the adjusting mechanism assembly, and a limiting block is snap-connected to the inner wall of the first limiting groove. The other side of the limiting block is fixedly connected with a rubber pad, and the other side of the rubber pad is fixedly connected with a second spring. The other end of the second spring is fixedly connected with a second adjusting ring. The outer wall of the third adjusting ring is fixedly connected with an adjusting mechanism assembly, and a telescopic rod is slidably connected to the inner wall of the adjusting mechanism assembly. A telescopic rod is fixedly connected to one side of the adjusting mechanism assembly, and a second adjusting mechanism is fixedly connected to the outer wall of the telescopic rod. This technical solution ensures the stability of the orthodontic traction device for orthodontics of patients' teeth, and at the same time prevents the problem of falling off when worn by children, improving the efficiency of the device for orthodontics of patients.

[0004] However, when faced with users of different face shapes and head sizes, it is difficult for existing devices to quickly adjust their sizes while maintaining stability, resulting in poor applicability and stability of the devices. Chinese Patent Application CN217244876U discloses an orthodontic traction device that relies on two sets of elastic bands, upper and lower, for wearing to solve the problem of rapid adjustment and adaptation of wearing sizes. However, since this prior art only relies on two sets of elastic bands, upper and lower, for wearing and cannot adjust the tightness, when faced with a situation where a child's head is larger or smaller, the wearing may be too loose or too tight, and long-term wearing will cause discomfort. Summary of the Invention

[0005] The object of the present invention is to provide an adjustable orthodontic traction device to solve the problem that existing orthodontic traction devices are difficult to quickly adjust the size of the device while maintaining stability for wearers of different face shapes and head sizes, resulting in poor applicability and stability of the device.

[0006] The object of the present invention can be achieved by the following technical solutions:

[0007] The first aspect of the present invention provides an adjustable orthodontic traction device, comprising:

[0008] A headgear mechanism, including a forehead guard, a left strap and a right strap respectively connected to both ends of the forehead guard, a limiting block for clamping and fixing the left strap and the right strap to form a binding head ring with the forehead guard, and a head top elastic band connected between the limiting block and the front side of the forehead guard;

[0009] A chin cup mechanism, including a face length adaptor frame body connected to the forehead guard and capable of longitudinal expansion and contraction, and an orthodontic traction component and a chin cup arranged one above the other on the face length adaptor frame body; the orthodontic traction component is used for auxiliary traction and correction; the chin cup is used to support the patient's chin.

[0010] In the present invention, the forehead guard is placed on the patient's forehead, and the left strap and the right strap are wound around and fixed from both sides of the patient's head to the rear by the limiting block to form a binding head ring. At the same time, the patient's head top is fixed by the head top elastic band, thereby realizing the two-way fixation of the circumferential and top sides of the patient's head; on this basis, the telescopic function of the face length adaptor frame body is used to adapt to the face shapes of different patients, and the patient's chin is supported by the chin cup to achieve a better fixation effect. At the same time, the orthodontic traction component is placed at the patient's oral cavity to facilitate the carrying out of traction and correction work.

[0011] In the present invention, the fixed lengths of the left strap and the right strap are adjusted by the limiting block to form binding head rings of different sizes, so as to adapt to patients with different head circumferences. The telescopic function of the face length adaptor frame body is used to adapt to patients with different face shapes. Therefore, it has a high degree of adjustability and a relatively wide range of applicability.

[0012] In some specific embodiments, an upper pad is provided on the inner side of the forehead plate.

[0013] In some specific embodiments, a lower pad is provided on the inner side of the chin pocket.

[0014] In some specific embodiments, a left strap through hole and a right strap through hole are formed in parallel on the limit block, and the left strap passes through the left strap through hole, and the right strap passes through the right strap through hole;

[0015] A clamp seat mounting hole is respectively opened on both sides of the limit block, and the clamp seat mounting hole is connected to the left belt through hole or the right belt through hole on the corresponding side. A torsion bar assembly is fixed on the clamp seat mounting hole, and a clamp seat is provided on the torsion bar assembly. The clamp seat is elastically twisted by a torsion bar spring and is arranged on the clamp seat mounting hole, and one end is tilted and the other end is provided with a tooth groove and passes through the clamp seat mounting hole to be pressed on the left strap in the left belt through hole, or pressed on the right strap in the right belt through hole;

[0016] The torsion bar assembly includes a torsion bar spring fixedly mounted on the mounting hole of the clamp seat, and the clamp seat is fixed on the torsion bar spring so that the torsion elastic restoring force of the torsion bar spring is used for the pressing force of the tooth groove on the left strap or the right strap; or,

[0017] The torsion bar assembly includes a rotating shaft fixedly mounted on the mounting hole of the clamp seat, and a torsion spring sleeved on the rotating shaft. The clamp seat is slidably sleeved on the rotating shaft. One end of the torsion spring is fixed on the limit block as a supporting end, and the other end is fixed on the clamp seat as a rotating end, so that the torsional elastic restoring force of the torsion spring is used to exert the pressing force of the tooth groove on the left strap or the right strap.

[0018] In some specific embodiments, the top elastic band can be, for example, a rubber elastic band.

[0019] In some specific embodiments, the stop block is provided with a fixing seat, and one end of the elastic band is fixed to the fixing seat. Specifically, the fixing method includes an interference fit, for example, one end of the fixing seat is open, and the elastic band is inserted into the opening by interference fit using the elasticity of the rubber band, or a snap fit.

[0020] In some specific embodiments, an arc-shaped groove is opened on the outer side of the forehead guard along the circumferential direction; a front positioning plate is embedded in the arc-shaped groove, and a buckle is provided on the front positioning plate. One end of the top elastic band is fixed on the limit block, and the other end is fixed to the forehead guard through the buckle.

[0021] In some specific embodiments, the face length adaptation frame includes a first connecting rod extending in parallel along the longitudinal direction and connected to the forehead guard, a connecting terminal slidably sleeved on the first connecting rod, a second connecting rod rotatably arranged between the connecting terminals, and a third connecting rod slidably arranged between the connecting terminals.

[0022] The orthodontic traction assembly is provided on the second connecting rod; the chin cup is provided on the third connecting rod.

[0023] In the present invention, the first connecting rod and the third connecting rod slide longitudinally relative to the connection terminal to adapt to patients with different face shapes, and drive the orthodontic traction assembly on the second connecting rod to move to the oral cavity of the patient. The inclination angle of the orthodontic traction assembly is adjusted by the rotation of the second connecting rod, so as to facilitate the carrying out of traction correction work.

[0024] In some specific embodiments, an arc-shaped block is embedded in the arc-shaped groove. A first limit screw is provided on the arc-shaped block, and the arc-shaped block is fixed in the arc-shaped groove by the first limit screw. An installation hole is also formed on the arc-shaped block, and the arc-shaped block is inserted and matched with the first connecting rod through the installation hole.

[0025] In some specific embodiments, a first installation hole and a second installation hole extending longitudinally are arranged side by side on the connection terminal; the first connecting rod is inserted into the first installation hole, and the third connecting rod is slidably inserted into the second installation hole;

[0026] A threaded hole communicating with the second installation hole is further provided on the connection terminal, and a second limit bolt is screwed in the threaded hole; the second limit bolt can abut against the third connecting rod along the rotation of the threaded hole to fix the third connecting rod.

[0027] In some specific embodiments, the first connecting rod is fixedly connected to the first installation hole; in some other specific embodiments, the first connecting rod is tightly inserted into the first installation hole and can slide relatively under the action of an external force, and can remain relatively fixed after the external force is lost; in some other specific embodiments, the connection mode between the first connecting rod and the first installation hole is the same as the connection mode between the third connecting rod and the second installation hole, that is, relatively sliding insertion, and can be fixed by the rotation of an externally provided bolt at the same time.

[0028] In some specific embodiments, a chute is formed at the end of the connection terminal, a slider is rotatably embedded in the chute, a rotating seat is provided on the slider, and the rotating seat is connected to the second connecting rod; the relative rotation of the second connecting rod relative to the connection terminal is realized by the relative rotation of the rotating seat relative to the chute;

[0029] Installation holes are formed through the rotating seat and the slider, a threaded groove is correspondingly arranged on the bottom side of the chute, a bolt is provided on the rotating seat, and the bolt passes through the installation hole and is screwed into the threaded groove to press the rotating seat and the slider in the chute to fix the rotation angle of the rotating seat relative to the connection terminal.

[0030] In some specific embodiments, the orthodontic traction assembly includes a traction seat provided on the second connecting rod, a U-shaped traction rod provided on the traction seat, and a traction device mounting seat provided on the traction rod.

[0031] The present invention adopts a U-shaped traction rod to adapt to the dentition, and adopts a traction device mounting seat to assemble the traction appliance to perform traction correction work.

[0032] In some specific embodiments, the traction device mounting base adopts a hook. The hook can be connected with a traction device, such as a rubber band traction, which is hung from the hook ring of the upper jaw to the hook ring of the lower jaw to provide traction in different directions, which is often used for fine-tuning of teeth.

[0033] Elastic pull chain connections, which apply continuous force by connecting hooks on the teeth, are commonly used to close spaces between teeth or correct misalignment.

[0034] Intermaxillary distraction devices connect the upper and lower dentitions via a fixed device and are typically used for mandibular protrusion or maxillary retrusion. These devices typically consist of a bracket with a wire that hooks into the distraction mounting bracket.

[0035] In some specific embodiments, the traction seat is provided with a storage box with an open top, side slide grooves are provided on both sides of the storage box, plug-in plates are slidably provided in the side slide grooves, a rotating shaft is provided between the top ends of the plug-in plates, a mirror table is provided on the rotating shaft, and LED light strips are provided around the mirror table.

[0036] In some specific embodiments, the plug-in board is a T-shaped board, and the side sliding grooves are correspondingly provided with limiting grooves, and are slidably connected to both sides of the T-shaped board.

[0037] In some specific embodiments, a spring contact switch electrically connected to the LED light strip is provided on the dressing table. The spring contact switch is a push-button switch with a reset spring. When the dressing table is inside the storage box, the spring contact switch is confined inside the storage box and is in a pressed closed state. When the dressing table is outside the storage box, the spring contact switch elastically resets to an open state.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1) Improvement in the convenience of forehead positioning, installation, and adjustment: The forehead guard plate is used to be worn on the forehead. At the left and right ends of the rear side of the forehead guard plate, a left strap and a right strap are respectively connected. The tops of the left strap and the right strap are fixed by a limit block. Specifically, a left strap through-hole and a right strap through-hole are provided in the limit block for the left strap and the right strap to be inserted and passed through, and a clamping seat is installed to elastically press and limit the left strap and the right strap. Above the limit block and the forehead guard plate, they are connected by an overhead elastic band, which can quickly position before wearing and play an auxiliary supporting role after wearing. When wearing the device, the head can first pass through the inside of the forehead guard plate, the left strap, and the right strap, and the elastic band is pressed on the top of the head. The elastic band is used for auxiliary support and positioning. Then, one hand presses the clamping seats on both sides of the limit block to release the limit on the left strap and the right strap. At the same time, the other hand pulls the left strap and the right strap from the rear end of the limit block, and pushes the limit block forward to shorten the distance between the strap and the head, thereby fixing the device. In the case of different head sizes, the two straps can be adjusted by a clamping device to achieve quick wearing;

[0040] 2) Improvement in the adjustability of facial size: In the present invention, in the case of different facial sizes, the position of the third connecting rod can be first slid up and down to adjust the up and down height of the chin pocket, so that the chin pocket can fit the lower jaw part. Then, rotate the rotating seat to drive the second connecting rod to rotate, and finely adjust the angles of the traction seat and the traction rod, so as to adapt to different lengths of facial sizes.

[0041] 3) Higher wearing comfort: In the present invention, the straps on both sides can be freely adjusted in tightness to ensure wearing comfort. At the same time, the face and chin pocket parts adopt an independent adjustment structure. Among them, the traction seat can be rotated and adjusted through the rotating seat, the height of the traction seat can be adjusted through the connecting terminal, and the height of the chin pocket can be independently adjusted. In the face of different face shapes, especially the face shape with a protruding chin, the degree of freedom of adjustment is higher and the adaptability is better;

[0042] 4) Improvement in the convenience of operating the lighting device: A convenient auxiliary device is installed at the front end of the traction seat. When the mirror platform is retracted into the inside of the storage box, the spring contact switch can be squeezed by the storage box, thereby controlling the LED light strip to turn off the lighting. When installing the device and subsequent adjustment devices, the mirror platform can be pulled out and the angle of the mirror platform can be adjusted. The oral cavity or face can be irradiated by the lighting strip and the mirror, which is convenient for observing the position of the device and convenient for the user to adjust. When wearing and adjusting the device, there is no need to borrow and hold other lighting devices, which improves the convenience;

[0043] 5) High adaptability for installing the correction device: In the present invention, by reserving a traction seat that can adjust the height and angle, and a traction member with multiple points on the arc-shaped traction rod, the assembly and adjustment requirements of various correction devices can be met;

[0044] 6) The structure is detachable for easy maintenance and replacement: In the present invention, the head-wearing device, i.e., the headgear mechanism, and the lower traction device, i.e., the chin cup mechanism, can be disassembled. Two arc-shaped blocks are installed at the inner arc-shaped groove of the forehead guard plate. The arc-shaped blocks are fixed inside the arc-shaped groove by the first limit screws. The arc-shaped blocks can be taken out by removing the first limit screws, and the traction device at the lower end of the arc-shaped blocks and the first connecting rod can be disassembled, which is convenient for equipment installation, storage and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 FIG. is a schematic structural diagram of an adjustable oral orthodontic traction device of the present invention;

[0046] Figure 2 FIG. is an assembly schematic diagram of the limit block and the head elastic band;

[0047] Figure 3 FIG. is a schematic structural diagram of the forehead guard plate;

[0048] Figure 4 FIG. is an assembly schematic diagram of the connection terminal, the second connecting rod and the traction seat;

[0049] Figure 5 FIG. is an assembly schematic diagram of the third connecting rod and the chin cup;

[0050] Figure 6 FIG. is an assembly schematic diagram of the connection terminal, the rotating seat and the second connecting rod;

[0051] Figure 7 FIG. is an assembly schematic diagram of the traction seat, the storage box and the mirror platform;

[0052] Description of the marks in the figure:

[0053] 1 - forehead guard plate, 2 - left strap, 3 - right strap, 4 - limit block, 5 - head elastic band, 6 - first connecting rod, 7 - second connecting rod, 8 - third connecting rod, 9 - left strap through hole, 10 - right strap through hole, 11 - fixed seat, 12 - torsion bar spring, 13 - clamp seat, 14 - tooth groove, 15 - arc-shaped groove, 16 - arc-shaped block, 17 - first limit screw, 18 - mounting hole, 19 - front positioning plate, 20 - buckle, 21 - upper cushion, 22 - connection terminal, 23 - first mounting hole, 24 - second mounting hole, 25 - rotating seat, 26 - second limit bolt, 27 - traction seat, 28 - traction rod, 29 - traction device mounting seat, 30 - chin cup, 31 - lower cushion, 32 - sliding groove, 33 - slider, 34 - bolt, 35 - threaded groove; 36 - storage box, 37 - side sliding groove, 38 - plug-in board, 39 - rotating shaft, 40 - mirror platform, 41 - LED light strip, 42 - spring contact switch. DETAILED DESCRIPTION OF THE INVENTION

[0054] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are implemented on the premise of the above technical solutions of the present invention, and detailed implementation manners and specific operation processes are given, but the protection scope of the present invention is not limited to the following embodiments.

[0055] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0056] Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0057] Embodiment 1:

[0058] As Figure 1 shown, an adjustable orthodontic traction device for the oral cavity includes a head-wearing mechanism and a chin cup mechanism.

[0059] The head-wearing mechanism includes a forehead guard plate 1, a left strap 2 and a right strap 3 respectively connected to both ends of the forehead guard plate 1, a limiting block 4 for clamping and fixing the left strap 2 and the right strap 3 to form a binding head ring with the forehead guard plate 1, and a head top elastic band 5 connected between the limiting block 4 and the front side of the forehead guard plate 1.

[0060] The chin cup mechanism includes a face length adaptation frame body connected to the forehead guard plate 1 and capable of longitudinally stretching, and an orthodontic traction assembly and a chin cup 30 arranged one above the other on the face length adaptation frame body; the orthodontic traction assembly is used for assisting traction and correction; the chin cup 30 is used for holding up the patient's chin.

[0061] In this embodiment, the forehead guard plate 1 is placed on the patient's forehead, and the left strap 2 and the right strap 3 are wound from both sides of the patient's head to the rear and fixed by the limiting block 4 to form a binding head ring. At the same time, the head top elastic band 5, such as a rubber elastic band, is used to fix the top of the patient's head, thereby realizing the two-way fixation of the circumferential direction and the top side of the patient's head. On this basis, the telescopic function of the face length adaptation frame body is used to adapt to the face shapes of different patients, and the chin cup 30 is used to hold up the patient's chin to achieve a better fixation effect. At the same time, the orthodontic traction assembly is placed at the patient's oral cavity to facilitate the traction and correction work.

[0062] In this embodiment, the fixed lengths of the left strap 2 and the right strap 3 are adjusted by the limiting block 4 to form binding head rings of different sizes, so as to adapt to patients with different head circumferences. The telescopic function of the face length adaptation frame body is used to adapt to patients with different face shapes. Therefore, it has a high degree of adjustability and a relatively wide range of applications.

[0063] Specifically, as Figure 2As shown, on the limit block 4, a left belt through-hole 9 and a right belt through-hole 10 are arranged in parallel. The left binding strap 2 passes through the left belt through-hole 9, and the right binding strap 3 passes through the right belt through-hole 10;

[0064] On both sides of the limit block 4, clamp seat mounting holes are respectively arranged. The clamp seat mounting holes communicate with the left belt through-hole 9 or the right belt through-hole 10 on the corresponding side. A torsion bar assembly is fixedly installed on the clamp seat mounting holes. A clamp seat 13 is arranged on the torsion bar assembly. The clamp seat 13 is elastically twisted and arranged on the clamp seat mounting holes through a torsion bar spring 12, and one end is upturned and the other end is provided with a tooth groove 14 and passes through the clamp seat mounting hole to press on the left binding strap 2 in the left belt through-hole 9, or press on the right binding strap 3 in the right belt through-hole 10;

[0065] The torsion bar assembly includes a torsion bar spring 12 fixedly installed on the clamp seat mounting holes. The clamp seat 13 is fixedly arranged on the torsion bar spring 12 to use the torsional elastic restoring force of the torsion bar spring 12 as the pressing force of the tooth groove 14 on the left binding strap 2 or the right binding strap 3.

[0066] The face length adaptor frame body includes a first connecting rod 6 extending in parallel along the longitudinal direction and connected to the forehead guard plate 1, a connecting terminal 22 slidably sleeved on the first connecting rod 6, a second connecting rod 7 rotatably arranged between the connecting terminals 22, and a third connecting rod 8 longitudinally slidably arranged between the connecting terminals 22;

[0067] The orthodontic traction assembly is arranged on the second connecting rod 7; the chin cup 30 is arranged on the third connecting rod 8.

[0068] In this embodiment, by longitudinally sliding the first connecting rod 6 and the third connecting rod 8 relative to the connecting terminal 22 to adapt to patients with different face shapes, and driving the orthodontic traction assembly on the second connecting rod 7 to move to the patient's oral cavity, and by rotating the second connecting rod 7 to adjust the inclination angle of the orthodontic traction assembly, so as to facilitate the development of traction correction work.

[0069] On the connecting terminal 22, a first mounting hole 23 and a second mounting hole 24 extending longitudinally are arranged in parallel; the first connecting rod 6 is inserted into the first mounting hole 23, and the third connecting rod 8 is slidably inserted into the second mounting hole 24;

[0070] The connecting terminal 22 is also provided with a threaded hole communicating with the second mounting hole 24. A second limit bolt 26 is screwed in the threaded hole; the second limit bolt 26 can abut against the third connecting rod 8 along the rotation of the threaded hole to fix the third connecting rod 8.

[0071] As Figure 4 shown, the orthodontic traction assembly includes a traction seat 27 arranged on the second connecting rod 7, a traction rod 28 arranged in a U shape on the traction seat 27, and a traction device mounting seat 29 arranged on the traction rod 28.

[0072] In this embodiment, a drawbar 28 with a U-shaped structure is adopted to fit the dentition, and a traction appliance mount 29 is used to assemble the traction orthodontic appliance for traction orthodontic work. Specifically, the traction appliance mount 29 uses a hook. The hook can be connected with a traction device: such as rubber band traction, where the rubber band is hung from the hook ring on the upper jaw to the hook ring on the lower jaw to provide traction forces in different directions, which is commonly used for fine adjustment of teeth.

[0073] Elastic traction chain connection, which applies continuous force by connecting the hooks on the teeth, is usually used to close the gaps between teeth or correct the uneven arrangement of teeth.

[0074] Intermaxillary traction device, which connects the upper and lower dentitions through a fixing device, is usually used in cases of mandibular prognathism or maxillary retrusion. This device usually includes a bracket with a wire that can be connected to the hook of the traction appliance mount.

[0075] Embodiment 2:

[0076] This embodiment provides an adjustable oral orthodontic traction device, which is only different from Embodiment 1 in that: as Figure 3 shown, an upper cushion 21 is provided on the inner side of the forehead guard 1; as Figure 5 shown, a lower cushion 31 is provided on the inner side of the chin cup 30. The upper cushion 21 and the lower cushion 31 can adopt skin-friendly flexible materials, such as silicone pads, to improve the wearing comfort of the patient.

[0077] The rest is the same as Embodiment 1.

[0078] Embodiment 3:

[0079] This embodiment provides an adjustable oral orthodontic traction device, which is only different from Embodiment 1 in that:

[0080] A fixing seat 11 is provided on the limiting block 4, and one end of the head elastic band 5 is fixed to the fixing seat 11. Specifically, the fixing methods include interference plug-in fit. For example, one end of the fixing seat 11 is open, and the elastic rubber band is interference inserted into the opening by using its elasticity; it also includes snap-fit.

[0081] The rest is the same as Embodiment 1.

[0082] Embodiment 4:

[0083] This embodiment provides an adjustable oral orthodontic traction device, which is only different from Embodiment 1 in that:

[0084] The torsion bar assembly includes a rotating shaft fixedly installed in the clamping seat mounting hole, and a torsion spring sleeved on the rotating shaft. The clamping seat 13 is slidably sleeved on the rotating shaft. One end of the torsion spring is fixed to the limiting block 4 as a supporting end, and the other end is fixed to the clamping seat 13 as a rotating end, so as to use the torsional elastic restoring force of the torsion spring for the pressing force of the tooth groove 14 on the left strap 2 or the right strap 3.

[0085] The rest is the same as in Embodiment 1.

[0086] Embodiment 5:

[0087] This embodiment provides an adjustable orthodontic traction device, and the only difference compared with Embodiment 1 is that:

[0088] As Figure 3 shown, an arc-shaped groove 15 is circumferentially formed on the outer side of the forehead guard plate 1; a front positioning plate 19 is embedded in the arc-shaped groove 15, a buckle 20 is provided on the front positioning plate 19, one end of the head top elastic band 5 is fixed to the limit block 4, and the other end is fixed to the forehead guard plate 1 through the buckle 20.

[0089] The rest is the same as in Embodiment 1.

[0090] Embodiment 6:

[0091] This embodiment provides an adjustable orthodontic traction device, and the only difference compared with Embodiment 1 is that:

[0092] As Figure 3 shown, an arc-shaped block 16 is embedded in the arc-shaped groove 15, a first limit screw 17 is provided on the arc-shaped block 16, and the arc-shaped block 16 is fixed in the arc-shaped groove 15 through the first limit screw 17. An installation hole 18 is further formed on the arc-shaped block 16, and the arc-shaped block 16 is inserted and matched with the first connecting rod 6 through the installation hole 18.

[0093] The rest is the same as in Embodiment 1.

[0094] Embodiment 7:

[0095] This embodiment provides an adjustable orthodontic traction device, and the only difference compared with Embodiment 1 is that:

[0096] The first connecting rod 6 is fixedly connected to the first installation hole 23.

[0097] The rest is the same as in Embodiment 1.

[0098] Embodiment 8:

[0099] This embodiment provides an adjustable orthodontic traction device, and the only difference compared with Embodiment 1 is that:

[0100] The first connecting rod 6 is closely inserted into the first installation hole 23 to relatively slide under an external force and then remain relatively fixed after the external force is lost.

[0101] The rest is the same as in Embodiment 1.

[0102] Embodiment 9:

[0103] This embodiment provides an adjustable orthodontic traction device, which is only different from Embodiment 1 in that:

[0104] The connection mode between the first connecting rod 6 and the first mounting hole 23 is the same as that between the third connecting rod 8 and the second mounting hole 24, that is, relative sliding insertion, and can be fixed by screwing an external bolt.

[0105] The rest is the same as Embodiment 1.

[0106] Embodiment 10:

[0107] This embodiment provides an adjustable orthodontic traction device, which is only different from Embodiment 1 in that:

[0108] As Figure 6 shown, a chute 32 is opened at the end of the connection terminal 22, a slider 33 is rotatably embedded in the chute 32, a rotating seat 25 is provided on the slider 33, and the rotating seat 25 is connected to the second connecting rod 7; the relative rotation of the second connecting rod 7 relative to the connection terminal 22 is realized by the relative rotation of the rotating seat 25 relative to the chute 32;

[0109] The rotating seat 25 and the slider 33 are provided with through mounting holes, a threaded groove 35 is correspondingly provided at the bottom side of the chute 32, a bolt 34 is provided on the rotating seat 25, and the bolt 34 passes through the mounting hole and is screwed into the threaded groove 35 to press the rotating seat 25 and the slider 33 in the chute 32 to fix the rotation angle of the rotating seat 25 relative to the connection terminal 22.

[0110] The rest is the same as Embodiment 1.

[0111] Embodiment 11:

[0112] This embodiment provides an adjustable orthodontic traction device, which is only different from Embodiment 1 in that:

[0113] As Figure 7 shown, a storage box 36 with an open top is provided on the traction seat 27, side chutes 37 are provided on both sides of the storage box 36, a plug-in board 38 is slidably provided in the side chutes 37, a rotating shaft 39 is provided between the tops of the plug-in boards 38, a mirror platform 40 is provided on the rotating shaft 39, and an LED light strip 41 is provided around the mirror platform 40.

[0114] Specifically, the plug-in board 38 is a T-shaped plate member, and a limiting groove is correspondingly provided on the side chute 37 and slidably connected to both sides of the T-shaped plate member;

[0115] A spring contact switch 42 electrically connected to an LED light strip 41 is provided on a mirror base 40. The spring contact switch 42 is a push-button switch with a return spring. When the mirror base 40 is inside the storage box 36, the spring contact switch 42 is also limited inside the storage box 36 and is in a pressed closed state. When the mirror base 40 is outside the storage box 36, the spring contact switch 42 elastically resets to an open state.

[0116] The rest is the same as in Embodiment 1.

[0117] Embodiment 12:

[0118] Refer to Figures 1-7The left end of the rear side of the forehead guard 1 is fixedly connected to the left strap 2, and the right end of the rear side of the forehead guard 1 is fixedly connected to the right strap 3. The front end of the forehead guard 1 is provided with an arc groove 15, and the front front end of the forehead guard 1 and the interior of the arc groove 15 are fixedly connected to the front positioning plate 19, and the interior of the front positioning plate 19 is fixedly connected to the elastic band 5, and the other end of the elastic band 5 away from the front positioning plate 19 is fixedly connected to the limiting block 4. The inner left end of the limiting block 4 is provided with a left belt through hole 9, and the inner right end of the limiting block 4 is provided with a right belt through hole 10. The left belt through hole 9 is installed inside the left belt through hole 9, and the right strap 3 is installed inside the right belt through hole 10. A first connecting rod 6 is installed on the left side of the front end of the forehead guard 1, and the lower end of the first connecting rod 6 is fixedly installed with a connecting terminal 22, and the interior of the connecting terminal 22 is slidably connected to the third connecting rod 8. The inner side end of the connecting terminal 22 is rotatably connected to a rotating seat 25, and the side end of the rotating seat 25 is fixedly installed with a second connecting rod 7. The forehead guard 1 is designed to be worn on the forehead. A left strap 2 and a right strap 3 are connected to the left and right ends of the rear side of the forehead guard 1, respectively. The top ends of the left and right straps 2 and 3 are fixed by a stopper 4. The left and right ends of the stopper 4 have left and right strap holes 9 and 10 for inserting and installing the left and right straps 2 and 3. Clamps 13 are installed on the left and right sides of the stopper 4 to limit the position of the left and right straps 2 and 3. An elastic band 5 connects the stopper 4 and the forehead guard 1 above. The elastic band 5 allows for quick positioning before wearing and provides auxiliary support after wearing. When wearing the device, you can first pass your head through the forehead guard 1 and the inside of the left and right straps 2 and 3 and put the elastic band 5 on the top of your head, using the elastic band 5 for auxiliary support and positioning. Then, use one hand to press the clamping seat 13 on both sides of the limit block 4 to release the limit on the left and right straps 2 and 3. At the same time, use the other hand to pull the left and right straps 2 and 3 from the rear end of the limit block 4, and push the limit block 4 toward the front end to shorten the distance between the straps and the head, thereby fixing the device. After the head is completely worn, the orthodontic traction component at the lower end can be adjusted. When facing different facial sizes, you can first slide the position of the third connecting rod 8 up and down to adjust the upper and lower heights of the chin pocket 30 so that the chin pocket 30 can fit the mandibular chin. Then rotate the rotating seat 25 to drive the second connecting rod 7 to rotate, and fine-tune the angles of the traction seat 27 and the traction rod 28 to adapt to facial sizes of different lengths.

[0119] Reference Figures 1-3 The top of the limit block 4 is fixedly connected to a fixing seat 11, and an elastic band 5 is installed inside the fixing seat 11. A buckle 20 is fixedly connected to the surface of the front positioning plate 19, and the elastic band 5 is fixedly connected inside the buckle 20. The ends of the elastic band 5 are connected to the limit block 4 and the forehead guard 1 through the fixing seat 11 and buckle 20, which can provide positioning and temporary support before wearing the device.

[0120] Reference Figure 1 andFigure 2 , a torsion bar spring 12 is installed inside the limit block 4, and a clamp seat 13 is rotatably connected to the surface of the limit block 4 through the torsion bar spring 12. A tooth groove 14 is opened at the rear end of the clamp seat 13, and the left strap 2 is attached to the inner side end of the clamp seat 13. When pressing the front end of the clamp seat 13, the clamp seat 13 can be driven to rotate through the torsion bar spring 12, so that the tooth groove 14 at the rear end of the clamp seat 13 is far away from the left strap 2 and the right strap 3, thereby releasing the limit on the left strap 2 and the right strap 3 and facilitating the adjustment of the size of the strap.

[0121] Refer to Figure 1 and Figure 3 , an arc block 16 is installed inside the arc groove 15, a first limit screw 17 is threadedly connected inside the arc block 16, an installation hole 18 is opened at the lower end of the arc block 16, and a first connecting rod 6 is fixedly connected inside the installation hole 18. Two arc blocks 16 are installed at the arc groove 15 inside the forehead guard plate 1, and the arc blocks 16 are fixed inside the arc groove 15 through the first limit screws 17. The arc blocks 16 can be taken out by removing the first limit screws 17, which is convenient for the installation and storage of the device.

[0122] Refer to Figure 1 , Figure 4 and Figure 5 , a first installation hole 23 is opened inside the connection terminal 22, a first connecting rod 6 is fixedly connected inside the first installation hole 23, a second installation hole 24 is opened inside the connection terminal 22, and a third connecting rod 8 is installed inside the second installation hole 24. A second limit bolt 26 is threadedly connected inside the connection terminal 22 and on one side of the second installation hole 24. The lower end of the first connecting rod 6 is connected to the mandibular traction and orthodontic traction installation device through the connection terminal 22, that is, the chin cup 30 and the orthodontic traction assembly. The third connecting rod 8 is used to install the mandibular traction device. By rotating the second limit bolt 26 forward, the end face can be frictionally abutted against the third connecting rod 8 to limit and fix the third connecting rod 8. At the same time, the second limit bolt 26 can also be rotated reversely to release the limit on the third connecting rod 8, thereby adjusting the up and down height of the third connecting rod 8 to adapt to different face shapes. In other embodiments, the first connecting rod 6 and the connection terminal 22 can also be connected in the same way to adjust the position of the connection terminal 22 on the first connecting rod 6.

[0123] Refer to Figure 4 and Figure 6 , a chute 32 is opened inside the connection terminal 22, a slider 33 is rotatably connected inside the chute 32, the top end of the slider 33 is fixedly connected with a rotating seat 25, a bolt 34 is slidably sleeved inside the rotating seat 25, and a threaded groove 35 is opened inside the connection terminal 22. When it is necessary to adjust the angle of the second connecting rod 7, the limit on the rotating seat 25 can be released by rotating the bolt 34, and then the angle of the second connecting rod 7 can be adjusted by rotating the rotating seat 25.

[0124] Refer to Figure 4 , a traction seat 27 is fixedly installed on the surface of the second connecting rod 7, and a traction rod 28 is fixedly connected to the inner end of the traction seat 27. The traction rod 28 is of an arc structure, and by adjusting the second connecting rod 7, the traction rod 28 can be located on both sides of the mouth.

[0125] Refer to Figure 4 , a plurality of traction device mounting seats 29 are installed on the surface of the traction rod 28. The traction device mounting seats 29 are used for installing traction devices. Hooks can be connected with traction devices: such as rubber band traction, hanging the rubber band from the hook ring on the upper jaw to the hook ring on the lower jaw to provide traction in different directions, which is often used for fine adjustment of teeth. Elastic traction chain connection, applying continuous force by connecting the hooks on the teeth, usually used to close the gaps between teeth or correct the uneven tooth arrangement. Intermaxillary traction device, connecting the upper and lower dental arches through a fixing device, usually used in the case of mandibular protrusion or maxillary retrusion. This device usually includes a bracket with a wire that can be hooked to the traction device mounting seat. The positions of the plurality of traction device mounting seats 29 can be adjusted.

[0126] Refer to Figure 7, a storage box 36 is fixedly connected to the front end of the towing seat 27. A side chute 37 is provided at the inner side end of the storage box 36. A plug-in board 38 is slidably connected inside the side chute 37. The plug-in board 38 is T-shaped and is adapted to the convex rib of the side chute 37. The inner side ends of the tops of the two plug-in boards 38 are fixedly connected with a rotating shaft 39. A mirror table 40 is rotatably connected to the surface of the rotating shaft 39. Specifically, the mirror table 40 is in interference rotation connection with the rotating shaft 39. The angle of the mirror table 40 is adjusted through the rotating connection, and the angle of the mirror table 40 is fixed through the interference fit. An LED light strip 41 is arranged inside the mirror table 40, and a spring contact switch 42 is installed at the bottom of the front end of the mirror table 40. A mirror, an LED light strip 41 and a battery for powering the light strip are installed inside the mirror table 40. The lighting end of the LED light strip 41 is located at the rear end of the mirror table 40, close to the side of the mouth. The mirror table 40 can rotate at the side end of the plug-in board 38, thereby adjusting the angle of the mirror table 40. It can be slid into the storage box 36 through the plug-in board 38. When the mirror table 40 is stored inside the storage box 36, the spring contact switch 42 can be squeezed by the storage box 36, thereby controlling the LED light strip 41 to turn off the lighting. Specifically, the spring contact switch 42 is a push-button switch with a return spring. When the mirror table 40 is inside the storage box 36, the spring contact switch 42 is also limited inside the storage box 36 and is in the pressed closed state. When the mirror table 40 is outside the storage box 36, the spring contact switch 42 elastically resets to the open state. When installing the device and adjusting the device later, the mirror table 40 can be pulled out, and the angle of the mirror table 40 can be adjusted. The LED light strip 41 and the mirror on the mirror table 40 are used to irradiate the inside of the oral cavity or the face, which is convenient for observing the position of the device and convenient for the user to adjust. When wearing and adjusting the device, there is no need to use and hold other lighting devices, improving the convenience.

[0127] Refer to Figure 2 , an upper cushion 21 is fixedly installed on the inner side end of the forehead guard 1. The upper cushion 21 can improve the comfort during wearing.

[0128] Refer to Figure 5 , a chin cup 30 is fixedly installed on the surface of the third connecting rod 8. A lower cushion 31 is installed on the inner side end of the chin cup 30. The chin cup 30 is used to support the mental region of the mandible, and the lower cushion 31 improves the comfort during wearing.

[0129] Working principle: The forehead guard 1 is used to be worn on the forehead. The left strap 2 and the right strap 3 are respectively connected to the left and right ends at the rear side of the forehead guard 1. The tops of the left strap 2 and the right strap 3 are fixed by the limit block 4. Clamping seats 13 are installed on the left and right sides of the limit block 4 to limit the left strap 2 and the right strap 3. When pressing the front end of the clamping seat 13, the clamping seat 13 can be driven to rotate by the torsion bar spring 12, so that the rear end tooth groove 14 of the clamping seat 13 is away from the left strap 2 and the right strap 3, thereby releasing the limit on the left strap 2 and the right strap 3 and facilitating the adjustment of the strap size. The elastic band 5 is connected above the limit block 4 and the forehead guard 1. The elastic band 5 can quickly position before wearing and play an auxiliary support role after wearing. When wearing the device, the head can be first passed through the inside of the forehead guard 1, the left strap 2 and the right strap 3, and the elastic band 5 is pressed against the top of the head. The elastic band 5 is used for auxiliary support and positioning. Then, one hand presses the clamping seats 13 on both sides of the limit block 4 to release the limit on the left strap 2 and the right strap 3, and at the same time, the other hand pulls the left strap 2 and the right strap 3 from the rear end of the limit block 4, and pushes the limit block 4 forward to shorten the distance between the strap and the head, thereby fixing the device. Two arc-shaped blocks 16 are installed at the arc-shaped groove 15 inside the forehead guard 1. The arc-shaped blocks 16 are fixed inside the arc-shaped groove 15 by the first limit screws 17. The arc-shaped blocks 16 can be taken out by removing the first limit screws 17, which is convenient for the installation and storage of the device. The installation hole 18 is used to install the first connecting rod 6. After the head is worn, the oral orthodontic traction component at the lower end can be adjusted. When facing different facial sizes, the position of the third connecting rod 8 can be first slid up and down. The third connecting rod 8 is used to install the mandibular traction device. By rotating the second limit bolt 26, the limit on the third connecting rod 8 can be released, so as to adjust the up and down height of the third connecting rod 8, and the chin cup 30 can fit the mandibular chin to adapt to different face shapes. Then rotate the rotating seat 25 to drive the second connecting rod 7 to rotate, and finely adjust the angles of the traction seat 27 and the traction rod 28, so as to adapt to different facial sizes of different lengths. When the mirror platform 40 is stored inside the storage box 36, the spring contact switch 42 can be squeezed by the storage box 36, and then control the LED light strip 41 to turn off the lighting. When installing the device and adjusting the device subsequently, the mirror platform 40 can be pulled out and the angle of the mirror platform 40 can be adjusted. The inside of the oral cavity or the face can be irradiated by the LED light strip 41 and the mirror on the mirror platform 40, which is convenient for observing the position of the device and convenient for the user to adjust. When wearing and adjusting the device, there is no need to use and hold other lighting devices, which improves the convenience. This device is provided with an auxiliary positioning and support device, and multiple adjustment structures are added. When facing different head and facial sizes, it can be quickly adjusted and the overall stability of the device can be maintained.

[0130] The above description of the embodiments is provided to enable those of ordinary skill in the art to understand and use the invention. Obviously, those who are familiar with the technology in this field can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative efforts. Therefore, the present invention is not limited to the above embodiments, and all improvements and modifications made by those skilled in the art without departing from the scope of the present invention according to the disclosure of the present invention should be within the protection scope of the present invention.

Claims

1. An adjustable orthodontic traction device, characterized in that, Comprising: A head-wearing mechanism, including a forehead guard plate (1), a left strap (2) and a right strap (3) respectively connected to both ends of the forehead guard plate (1), a limiting block (4) for clamping and fixing the left strap (2) and the right strap (3) to form a binding head ring with the forehead guard plate (1), and a head-top elastic band (5) connected between the limiting block (4) and the front side of the forehead guard plate (1); A chin cup mechanism, including a face-length adaptor frame body connected to the forehead guard plate (1) and capable of longitudinal expansion and contraction, and an orthodontic traction component and a chin cup (30) arranged one above the other on the face-length adaptor frame body; the orthodontic traction component is used for assisting in traction and correction; the chin cup (30) is used for holding up the patient's chin.

2. The adjustable orthodontic traction device according to claim 1, wherein The limiting block (4) is provided with a left strap through hole (9) and a right strap through hole (10) arranged in parallel, the left strap (2) passes through the left strap through hole (9), and the right strap (3) passes through the right strap through hole (10); Clamp seat mounting holes are respectively formed on both sides of the limiting block (4), the clamp seat mounting holes communicate with the left strap through hole (9) or the right strap through hole (10) on the corresponding side, a torsion bar assembly is fixedly installed on the clamp seat mounting holes, a clamp seat (13) is arranged on the torsion bar assembly, the clamp seat (13) is elastically twisted on the clamp seat mounting holes through a torsion bar spring (12), and one end is upturned and the other end is provided with a tooth groove (14) and passes through the clamp seat mounting hole to press on the left strap (2) in the left strap through hole (9), or press on the right strap (3) in the right strap through hole (10); The torsion bar assembly includes a torsion bar spring (12) fixedly installed on the clamp seat mounting holes, and the clamp seat (13) is fixedly arranged on the torsion bar spring (12); or, The torsion bar assembly includes a rotating shaft fixedly installed on the clamp seat mounting holes, and a torsion spring sleeved on the rotating shaft, the clamp seat (13) is slidably sleeved on the rotating shaft, one end of the torsion spring is fixed on the limiting block (4), and the other end is fixed on the clamp seat (13).

3. The adjustable orthodontic traction device according to claim 1, characterized in that, The head-top elastic band (5) is an elastic band.

4. The adjustable orthodontic traction device according to claim 1, characterized in that, A fixed seat (11) is arranged on the limiting block (4), and one end of the head-top elastic band (5) is fixed on the fixed seat (11).

5. The adjustable orthodontic traction device according to claim 1, wherein An arc-shaped groove (15) is formed on the outer side of the forehead guard plate (1) along the circumference; a front positioning plate (19) is embedded in the arc-shaped groove (15), a buckle (20) is arranged on the front positioning plate (19), one end of the head-top elastic band (5) is fixed on the limiting block (4), and the other end is fixed on the forehead guard plate (1) through the buckle (20).

6. The adjustable orthodontic traction device according to claim 1, wherein, The face-length adaptor frame body includes a first connecting rod (6) extending in parallel along the longitudinal direction and connected to the forehead guard plate (1), a connecting terminal (22) slidably sleeved on the first connecting rod (6), a second connecting rod (7) rotatably arranged between the connecting terminals (22), and a third connecting rod (8) longitudinally slidably arranged between the connecting terminals (22); The orthodontic traction component is arranged on the second connecting rod (7); the chin cup (30) is arranged on the third connecting rod (8).

7. The adjustable orthodontic traction device according to claim 6, characterized in that, The connecting terminal (22) is provided with a first mounting hole (23) and a second mounting hole (24) extending longitudinally in parallel; the first connecting rod (6) is inserted into the first mounting hole (23), and the third connecting rod (8) is slidably inserted into the second mounting hole (24); The connecting terminal (22) is further provided with a threaded hole communicating with the second mounting hole (24), and a second limit bolt (26) is screwed into the threaded hole; the second limit bolt (26) can abut against the third connecting rod (8) along the rotation of the threaded hole to fix the third connecting rod (8).

8. The adjustable orthodontic traction device according to claim 6, characterized in that, The end of the connecting terminal (22) is provided with a chute (32), a slider (33) is rotatably embedded in the chute (32), a rotating seat (25) is arranged on the slider (33), and the rotating seat (25) is connected to the second connecting rod (7); The rotating seat (25) and the slider (33) are provided with a mounting hole therethrough, a threaded groove (35) is correspondingly arranged on the bottom side of the chute (32), a bolt (34) is arranged on the rotating seat (25), and the bolt (34) passes through the mounting hole and is screwed into the threaded groove (35) to press the rotating seat (25) and the slider (33) in the chute (32) to fix the rotation angle of the rotating seat (25) relative to the connecting terminal (22).

9. The adjustable orthodontic traction device according to claim 1, characterized in that, The orthodontic traction assembly includes a traction seat (27) arranged on the second connecting rod (7), a traction rod (28) arranged in a U shape on the traction seat (27), and a traction device mounting seat (29) arranged on the traction rod (28).

10. The adjustable orthodontic traction device according to claim 9, wherein The traction seat (27) is provided with a storage box (36) with an open top, side chutes (37) are arranged on both sides of the storage box (36), a plug-in board (38) is slidably arranged in the side chutes (37), a rotating shaft (39) is arranged between the tops of the plug-in boards (38), a mirror platform (40) is arranged on the rotating shaft (39), and an LED light strip (41) is arranged around the mirror platform (40).

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