Dynamic adjustment type orthodontic appliance

Abstract

The invention discloses a dynamic adjustment type orthodontic appliance, which relates to the technical field of orthodontics, comprises a lower gum limiting sleeve, an upper gum limiting sleeve is movably arranged above the lower gum limiting sleeve, and is characterized by further comprising an adjustable traction mechanism and an adjustable fixing device, the adjustable fixing device comprises two sets of supporting strips, each set comprises two supporting strips, and the bottom ends of the supporting strips are fixedly arranged at the two ends of the inner side of the upper gum limiting sleeve respectively. The oral cavity of a patient is supported by the fixing box, the fixing box is further fixed by adjusting the position of the extending groove, displacement of the corrector in use is avoided, and when the oral cavity of the patient extrudes the fixing block in use, the fixing block can still be tightly attached to the oral cavity of the patient, so that the corrector can be dynamically adjusted; the stability of the corrector is improved, and the correction effect on the oral cavity of a patient is improved.

Description

Technical Field

[0001] The invention relates to the technical field of oral correction, and in particular to a dynamically adjustable oral orthodontic appliance. Background Art

[0002] An orthodontic appliance, or orthodontic appliance, is a device used to treat malocclusion. It can generate force, or through the functional force of the masticatory muscles and perioral muscles, with the help of the appliance, the deformed jaw, misplaced teeth and periodontal supporting tissues change, so as to facilitate the normal growth and development of the maxillofacial region. The Chinese patent application with application number 202410258607.3 discloses "an orthodontic device, relating to the field of oral orthodontic appliances, including upper connecting blocks fixedly installed on both sides of an upper bite pad, a lower bite pad arranged below the upper bite pad, lower connecting blocks arranged on both sides of the lower bite pad, and the upper connecting block and the lower The connecting blocks are connected by a connecting frame; when the patient feels uncomfortable wearing the anti-snoring device and needs to adjust it, the patient first presses the lower connecting blocks on both sides against each other by hand, and the lower connecting blocks are pressed, which drives the locking structure to contract, so that the locking ball slides out from the inner wall of the locking groove, and the sliding of the locking ball drives the adsorption structure to slide out together, thereby unlocking the position of the lower connecting block, and at the same time, the lower connecting block drives the pressing structure to slide toward the inner wall of the lower bite pad, so that the silicone blocks at both ends of the limit rod fit on the patient's teeth, and then the patient drives the lower bite pad to move through the movement of the upper and lower jaws, so as to reach a position that the patient can adapt to. This technical solution only solves the problem that patients cannot make fine adjustments according to the distance they can adapt to, and the adjustment requires taking out the anti-snoring device and then adjusting it with tools, which can easily lead to patients finding it too cumbersome to adjust and having difficulty adapting to it after wearing it, affecting their sleep. Existing oral orthodontic braces usually need to be fixed in the mouth when worn for the first time, and the sizes of the mouths of different patients vary, resulting in patients often having to endure severe pain when wearing them, and it is not convenient to make dynamic adjustments during use. In addition, during the correction process, the patient's mouth gradually becomes orthodontic, and the braces need to be frequently adaptively adjusted. Therefore, a cavity orthodontic brace that can be dynamically adjusted is needed. Summary of the invention

[0003] The object of the present invention is to provide a dynamically adjustable oral orthodontic appliance to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a dynamically adjustable oral orthodontic appliance, comprising a lower gum limit sleeve, an upper gum limit sleeve being movably arranged above the lower gum limit sleeve, characterized in that it also comprises an adjustable traction mechanism and an adjustable fixing device: An adjustable traction mechanism, the adjustable traction mechanism includes a connecting box, the connecting box has two groups and each group has two connecting boxes, and the connecting boxes are respectively fixedly arranged at the two ends of the lower jaw limit sleeve and the upper jaw limit sleeve, and a sliding groove is provided in the middle of one side of the connecting box away from the lower jaw limit sleeve and the upper jaw limit sleeve; The adjustable fixing device comprises support bars, wherein the support bars are divided into two groups with two bars in each group, and the bottom ends are respectively fixedly arranged at the two inner ends of the upper gum limit sleeve.

[0005] Preferably, the adjustable traction mechanism includes a scale plate, a distance-adjusting threaded rod and a first slider, there are four scale plates in total and they are fixedly installed in four connecting boxes respectively and are located above the slide groove, there are four distance-adjusting threaded rods in total and they are installed in the four connecting boxes respectively by insertion, there are four first sliders in total and they are installed in the four connecting boxes respectively by sliding, and the first slider is movably sleeved on the distance-adjusting threaded rod by a thread.

[0006] Preferably, the adjustable traction mechanism includes a first spring, a connecting column and a first connecting tube. There are two first springs in each connecting box and they are movably sleeved between the two ends of the distance adjusting threaded rod and the first slider. The connecting column is fixedly installed in the middle of one side of each first slider away from the lower jaw limit sleeve and the upper jaw limit sleeve. The connecting column is installed in the slide groove by insertion and sliding. There are two first connecting tubes and the top ends are movably sleeved on the two connecting columns located at the two ends of the upper jaw limit sleeve.

[0007] Preferably, the adjustable traction mechanism includes a second connecting tube, a third connecting tube and a distance adjusting head. There are two second connecting tubes and they are respectively installed in the two first connecting tubes by insertion. There are two third connecting tubes and their bottom ends are respectively movably sleeved on two connecting columns located at both ends of the lower jaw limit sleeve. The top end of the third connecting tube is movably installed in the two second connecting tubes by insertion. The distance adjusting head is fixedly installed on one end of the distance adjusting threaded rod away from the end of the lower jaw limit sleeve and the upper jaw limit sleeve.

[0008] Preferably, the adjustable fixing device includes a fixing box, an extension slot and a fixing block. There are two fixing boxes and they are respectively fixed by bolts on the top of the two groups of support bars away from the upper dental bed limiting sleeve. There are two extension slots and they are respectively opened on one side of the two fixing boxes close to the upper dental bed limiting sleeve. There are two fixing blocks and they are respectively movably installed in the two extension slots.

[0009] Preferably, the adjustable fixing device includes a first sliding rod, a second sliding block and a second spring, there are two first sliding rods in total, two in each group, and are respectively fixedly mounted on both ends of two fixed blocks located on one side inside the fixed box, there are two second sliding rods in total, two in each group, and are respectively movably sleeved on the two groups of first sliding rods, the side of the second sliding block close to the fixed block is movably connected to the fixed block by sliding, there are two second springs in total, two in each group, and are respectively movably sleeved on the two groups of first sliding rods.

[0010] Preferably, the adjustable fixing device includes a connecting rod, a translation plate and a second sliding rod, there are two groups of connecting rods, each group of two, and they are respectively located in two fixed boxes, one end of the connecting rod close to the fixed block is movably installed on the end of the second sliding block away from the fixed block through a rotating shaft, there are two translation plates and they are respectively movably arranged in the two fixed boxes, one end of each group of connecting rods away from the fixed block is movably installed at the two ends of the two translation plates through a rotating shaft, there are two groups of second sliding rods and they are respectively movably installed on the side of the two fixed boxes away from the fixed block through insertion, and one end of each group of the second sliding rods located in the fixed box is fixedly installed on the side of the translation plate away from the fixed block.

[0011] Preferably, the adjustable fixing device includes a translation threaded rod, a first fixed cylinder and a second fixed cylinder, the translation threaded rod is movably installed in the middle of one side of the two fixing boxes away from the fixed block, the two ends of the translation threaded rod located in the fixing box are respectively movably installed in the middle of one side of the two translation plates through threaded insertion, there are two first fixed cylinders and the two ends are respectively fixedly installed between the two fixing boxes, the two first fixed cylinders are respectively movably sleeved on one end of two coaxial second sliding rods located outside the fixing box, the two ends of the second fixed cylinder are respectively fixedly installed between the two fixing boxes, and are movably sleeved outside the translation threaded rod.

[0012] Preferably, the adjustable fixing device includes a worm wheel, a worm and an adjusting head, the worm wheel is located in the middle of the second fixed cylinder and fixedly sleeved in the middle of the translational threaded rod, the worm is movably mounted on the front side of the worm wheel through meshing, the worm is located in the second fixed cylinder, and both ends are movably mounted on the top and bottom ends of the second fixed cylinder respectively, and the adjusting head is fixedly mounted on the bottom end of the worm.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention is designed and installed with an adjustable traction mechanism and an adjustable fixing device, the lower gum limit sleeve and the upper gum limit sleeve are connected by the adjustable traction mechanism, and the position of the first sliding block inside the connecting box is adjusted so that the corrector for oral orthodontics can be adjusted according to the actual correction required by the patient, the lower gum limit sleeve and the upper gum limit sleeve are connected by the adjustable traction mechanism, the effect of the corrector on the patient's traction correction is improved, the patient's mouth is supported by the fixing box, and the fixing box is further fixed by adjusting the position of the extending groove, so that the corrector is prevented from being displaced during use, and during use, when the patient's mouth squeezes the fixing block, the fixing block can still be close to the patient's mouth, so that the corrector can be dynamically adjusted, the stability of the corrector is improved, and the correction effect on the patient's mouth is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Provides an overall structural diagram for an embodiment of the present invention; Figure 2 A schematic diagram of an adjustable traction mechanism provided in an embodiment of the present invention; Figure 3 A schematic diagram of the internal structure of a connection box provided in an embodiment of the present invention; Figure 4 A schematic diagram of a fixing box provided in an embodiment of the present invention; Figure 5 A schematic diagram of the internal structure of a fixing box provided in an embodiment of the present invention; Figure 6 The embodiment of the present invention provides Figure 5 The enlarged structural diagram at A in the middle; Figure 7 A schematic diagram of the internal structure of the first fixed cylinder and the second fixed cylinder provided in an embodiment of the present invention.

[0015] In the figure: 1. lower jaw limit sleeve; 2. upper jaw limit sleeve; 3. adjustable traction mechanism; 301. connecting box; 302. scale plate; 303. distance-adjusting threaded rod; 304. first slider; 305. first spring; 306. connecting column; 307. first connecting cylinder; 308. second connecting cylinder; 309. third connecting cylinder; 310. distance-adjusting head; 4. adjustable fixing device; 401. support bar; 402. fixing box; 403. extension slot; 404. fixing block; 405. first slide rod; 406. second slider; 407. second spring; 408. connecting rod; 409. translation plate; 410. second slide rod; 411. translation threaded rod; 412. first fixing cylinder; 413. second fixing cylinder; 414. worm gear; 415. worm; 416. adjusting head. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figures 1 to 7 The present invention provides a technical solution: a dynamically adjustable oral orthodontic appliance, comprising a lower gum limit sleeve 1, an upper gum limit sleeve 2 is movably arranged above the lower gum limit sleeve 1, characterized in that it also includes an adjustable traction mechanism 3 and an adjustable fixing device 4: The adjustable traction mechanism 3 includes a connection box 301. There are two groups of connection boxes 301, each group of two, and they are fixedly arranged at both ends of the lower gum limit sleeve 1 and the upper gum limit sleeve 2, respectively. A sliding groove is provided in the middle of one side of the connection box 301 away from the lower gum limit sleeve 1 and the upper gum limit sleeve 2; The adjustable fixing device 4 comprises support bars 401 . The support bars 401 have two groups, each group has two bars, and the bottom ends are respectively fixedly arranged at the two inner ends of the upper gum limit sleeve 2 .

[0018] The adjustable traction mechanism 3 includes a scale plate 302, a pitch-adjusting threaded rod 303 and a first slider 304. There are four scale plates 302, which are fixedly installed in four connection boxes 301 and located above the slide slot. There are four pitch-adjusting threaded rods 303, which are installed in the four connection boxes 301 by insertion. There are four first sliders 304, which are installed in the four connection boxes 301 by sliding. The first slider 304 is sleeved on the pitch-adjusting threaded rod 303 by thread. The position can be accurately adjusted by the scale plate 302. When the first slider 304 is displaced, the first spring 305 in each connection box 301 is in a state of tension and compression. The adjustable traction mechanism 3 includes a first spring 305, a connecting column 306 and a first connecting tube 307. There are two first springs 305 in each connection box 301, and they are respectively movably sleeved between the two ends of the distance adjustment threaded rod 303 and the first slider 304. The connecting column 306 is fixedly installed in the middle of one side of each first slider 304 away from the lower jaw limit sleeve 1 and the upper jaw limit sleeve 2. The connecting column 306 is inserted and slidably installed in the slide groove. There are two first connecting tubes 307, and the top ends are respectively movably sleeved on the two connecting columns 306 located at the two ends of the upper jaw limit sleeve 2; the lower jaw limit sleeve 1 and the upper jaw limit sleeve 2 are connected by the first connecting tube 307, the second connecting tube 308 and the third connecting tube 309, so that the patient's mouth is pulled for correction when opening and closing; The adjustable traction mechanism 3 includes a second connecting tube 308, a third connecting tube 309 and a distance adjusting head 310. There are two second connecting tubes 308 and they are respectively installed in the two first connecting tubes 307 by insertion. There are two third connecting tubes 309 and the bottom ends are respectively movably sleeved on the two connecting columns 306 at the two ends of the lower jaw limit sleeve 1. The top end of the third connecting tube 309 is installed in the two second connecting tubes 308 by insertion. The distance adjusting head 310 is fixedly installed at one end of the distance adjusting threaded rod 303 away from the ends of the lower jaw limit sleeve 1 and the upper jaw limit sleeve 2. The distance adjusting threaded rod 303 is driven to rotate by the distance adjusting head 310. When the distance adjusting threaded rod 303 rotates, the first slider 304 is driven to move, so as to adjust the position of the first slider 304 in each connecting box 301 respectively. The adjustable fixing device 4 includes a fixing box 402, a protruding slot 403 and a fixing block 404. There are two fixing boxes 402, which are respectively fixedly installed at the top of one end of the two groups of support bars 401 away from the upper gum limit sleeve 2 by bolts. There are two protruding slots 403, which are respectively opened on one side of the two fixing boxes 402 close to the upper gum limit sleeve 2. There are two fixing blocks 404, which are respectively movably installed in the two protruding slots 403. The fixing box 402 is used to support the top of the patient's mouth. When the fixing block 404 contacts the inside of the patient's mouth, the fixing box 402 is fixed to prevent the fixing box 402 from being offset forward and backward, and can be adaptively adjusted according to the size of the mouth of different patients. The adjustable fixing device 4 includes a first slide bar 405, a second slide bar 406 and a second spring 407. There are two first slide bars 405, each with two first slide bars, which are respectively fixedly mounted on two ends of the two fixed blocks 404 located on one side of the inside of the fixed box 402. There are two second slide bars 406, each with two first slide bars, which are respectively movably sleeved on the two groups of first slide bars 405. The side of the second slide bar 406 close to the fixed block 404 is connected to the fixed block 404 by sliding movement. There are two second springs 407, each with two first slide bars, which are respectively movably sleeved on the two groups of first slide bars 405. The second slide bar 406 drives the connecting rod 408 to expand. At this time, the second slide bar 406 moves on the first slide bar 405 in the direction close to the end of the fixed block 404, and the second spring 407 is compressed. When the fixed block 404 is no longer squeezed, the second slide bar 406 is reset by the elastic force of the second spring 407, that is, the fixed block 404 is reset, so that the corrector can be dynamically adjusted after being fixed. The adjustable fixing device 4 includes a connecting rod 408, a translation plate 409 and a second sliding rod 410. There are two groups of connecting rods 408, each with two rods, and they are respectively located in the two fixing boxes 402. One end of the connecting rod 408 close to the fixing block 404 is movably installed at the end of the second sliding block 406 away from the fixing block 404 through a rotating shaft. There are two translation plates 409, which are movably arranged in the two fixing boxes 402 respectively. One end of each group of connecting rods 408 away from the fixing block 404 is movably installed at both ends of the two translation plates 409 through a rotating shaft. There are two groups of second sliding rods 410, which are respectively movably installed on one side of the two fixing boxes 402 away from the fixing block 404 through insertion. One end of each group of second sliding rods 410 is located in the fixing box 402 and is fixedly installed on the side of the translation plate 409 away from the fixing block 404. The fixing block 404 is driven to move out of the extension slot 403 by the connecting rod 408, and when the fixing block 404 contacts the inside of the patient's oral cavity, the fixing box 402 is fixed. The adjustable fixing device 4 includes a translation threaded rod 411, a first fixed cylinder 412 and a second fixed cylinder 413. The translation threaded rod 411 is movably installed in the middle of one side of the two fixed boxes 402 away from the fixed block 404. The two ends of the translation threaded rod 411 located in the fixed box 402 are respectively movably installed in the middle of one side of the two translation plates 409 through threaded insertion. There are two first fixed cylinders 412 and the two ends are respectively fixedly installed between the two fixed boxes 402. The two first fixed cylinders 412 are respectively movably sleeved on one end of the two coaxial second sliding rods 410 located outside the fixed box 402. The two ends of the second fixed cylinder 413 are respectively fixedly installed between the two fixed boxes 402 and movably sleeved outside the translation threaded rod 411; the two fixed boxes 402 are connected by the first fixed cylinder 412 and the second fixed cylinder 413; The adjustable fixing device 4 includes a worm wheel 414, a worm 415 and an adjusting head 416. The worm wheel 414 is located in the middle of the second fixed cylinder 413 and is fixedly sleeved in the middle of the translation threaded rod 411. The worm 415 is movably mounted on the front side of the worm wheel 414 through meshing. The worm 415 is located in the second fixed cylinder 413, and both ends are movably mounted on the top and bottom ends of the second fixed cylinder 413 respectively. The adjusting head 416 is fixedly mounted on the bottom end of the worm 415; the adjusting head 416 is adjusted by twisting the adjusting head 416 to fix the fixing box 402 in the patient's mouth. When the adjusting head 416 is twisted, the worm 415 is driven to rotate, and the worm wheel 414 is driven to rotate through the worm 415, so that the translation threaded rod 411 rotates. When the translation threaded rod 411 rotates, the two translation plates 409 are driven to move in the direction away from the second fixed cylinder 413.

[0019] Working principle: When the present invention is used, the lower gum limit sleeve 1 and the upper gum limit sleeve 2 are adapted according to the shape of the patient's gums, the corrector is placed in the patient's mouth, the lower gum limit sleeve 1 is sleeved on the lower gums, the upper gum limit sleeve 2 is sleeved on the upper gums, and then the distance adjustment head 310 is twisted to drive the distance adjustment threaded rod 303 to rotate through the distance adjustment head 310, and when the distance adjustment threaded rod 303 rotates, it drives the first slider 304 to move, and the position of the first slider 304 in each connection box 301 is adjusted respectively, and the scale plate 302 can be used to accurately adjust the position of the first slider 304 in each connection box 301. When the first slider 304 is displaced, the first spring 305 in each connection box 301 is in a state of compression and extension, respectively, so that the friction between the first slider 304 and the distance adjustment threaded rod 303 is increased, so as to prevent the first slider 304 from being displaced again after the distance adjustment threaded rod 303 is twisted to adjust the position of the first slider 304. The lower gum limit sleeve 1 and the upper gum limit sleeve 2 are connected through the first connection tube 307, the second connection tube 308 and the third connection tube 309, so that the patient's mouth is pulled for correction when opening and closing; When installing the corrector, the fixing box 402 is placed against the top of the patient's mouth, and then the adjusting head 416 is screwed to adjust the fixing box 402 according to the actual size of the inside of the patient's mouth, so as to fix the fixing box 402 in the patient's mouth. When the adjusting head 416 is screwed, the worm 415 is driven to rotate, and the worm wheel 414 is driven to rotate through the worm 415, so that the translation threaded rod 411 is rotated. When the translation threaded rod 411 rotates, the two translation plates 409 are driven to move away from the second fixing cylinder 413. When the translation plate 409 moves, the fixing block 404 is driven to move out of the extending slot 403 through the connecting rod 408. When the fixing block 404 After contacting the inside of the patient's mouth, the fixing box 402 is fixed to prevent the fixing box 402 from shifting forward and backward, and can be adaptively adjusted according to the size of the patient's mouth. When the patient's mouth squeezes the fixing block 404, the second slider 406 drives the connecting rod 408 to expand. At this time, the second slider 406 moves on the first slider 405 toward the end of the fixing block 404, and the second spring 407 is compressed. When the fixing block 404 is no longer squeezed, the second slider 406 is reset by the elastic force of the second spring 407, that is, the fixing block 404 is reset, so that the corrector can be dynamically adjusted after fixation.

[0020] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dynamically adjustable oral orthodontic appliance, comprising a lower gum limit sleeve (1), an upper gum limit sleeve (2) being arranged above the lower gum limit sleeve (1), characterized in that: It also includes an adjustable traction mechanism (3) and an adjustable fixing device (4): An adjustable traction mechanism (3), the adjustable traction mechanism (3) comprising a connection box (301), the connection boxes (301) having two groups in total and two in each group, and being respectively arranged at the two ends of the lower jaw limit sleeve (1) and the upper jaw limit sleeve (2), and a sliding groove being provided in the middle of a side of the connection box (301) away from the lower jaw limit sleeve (1) and the upper jaw limit sleeve (2); An adjustable fixing device (4), the adjustable fixing device (4) comprising support bars (401), the support bars (401) comprising two groups, each group comprising two bars, and the bottom ends of the support bars are respectively arranged at the two inner ends of the upper gum limit sleeve (2).

2. A dynamically adjustable orthodontic appliance according to claim 1, characterized in that: The adjustable traction mechanism (3) comprises a scale plate (302), a pitch-adjusting threaded rod (303) and a first slider (304); the scale plates (302) are four in total and are fixedly mounted in four connection boxes (301) and are located above the slide slot; the pitch-adjusting threaded rods (303) are four in total and are movably mounted in the four connection boxes (301) by insertion; the first sliders (304) are four in total and are movably mounted in the four connection boxes (301) by sliding; the first sliders (304) are movably sleeved on the pitch-adjusting threaded rods (303) by threads.

3. A dynamically adjustable orthodontic appliance according to claim 2, characterized in that: The adjustable traction mechanism (3) comprises a first spring (305), a connecting column (306) and a first connecting tube (307). There are two first springs (305) in each connecting box (301) and they are respectively movably sleeved between the two ends of the distance adjustment threaded rod (303) and the first slider (304). The connecting column (306) is fixedly mounted in the middle of a side of each first slider (304) away from the lower jaw limit sleeve (1) and the upper jaw limit sleeve (2). The connecting column (306) is installed in the slide groove by inserting and sliding. There are two first connecting tubes (307) and the top ends are respectively movably sleeved on the two connecting columns (306) located at the two ends of the upper jaw limit sleeve (2).

4. A dynamically adjustable orthodontic appliance according to claim 3, characterized in that: The adjustable traction mechanism (3) comprises a second connecting tube (308), a third connecting tube (309) and a distance adjusting head (310). The second connecting tubes (308) are two in total and are respectively installed in two first connecting tubes (307) by insertion. The third connecting tubes (309) are two in total and the bottom ends are respectively movably sleeved on two connecting columns (306) located at the two ends of the lower jaw limit sleeve (1). The top end of the third connecting tube (309) is installed in the two second connecting tubes (308) by insertion. The distance adjusting head (310) is fixedly mounted on one end of the distance adjusting threaded rod (303) away from the ends of the lower jaw limit sleeve (1) and the upper jaw limit sleeve (2).

5. A dynamically adjustable orthodontic appliance according to claim 4, characterized in that: The adjustable fixing device (4) comprises a fixing box (402), a protruding slot (403) and a fixing block (404); the fixing boxes (402) are two in total and are respectively fixedly mounted on the top of one end of the two groups of support bars (401) away from the upper jaw limit sleeve (2) by means of bolts; the protruding slots (403) are two in total and are respectively opened on one side of the two fixing boxes (402) close to the upper jaw limit sleeve (2); and the fixing blocks (404) are two in total and are respectively movably mounted in the two protruding slots (403).

6. A dynamically adjustable orthodontic appliance according to claim 5, characterized in that: The adjustable fixing device (4) comprises a first sliding bar (405), a second sliding block (406) and a second spring (407). The first sliding bars (405) are two in total, each group having two members, and are respectively fixedly mounted on two ends of two fixed blocks (404) located on one side inside the fixed box (402). The second sliding blocks (406) are two in total, each group having two members, and are respectively movably sleeved on the two groups of first sliding bars (405). The side of the second sliding block (406) close to the fixed block (404) is movably connected to the fixed block (404) by sliding. The second springs (407) are two in total, each group having two members, and are respectively movably sleeved on the two groups of first sliding bars (405).

7. A dynamically adjustable orthodontic appliance according to claim 6, characterized in that: The adjustable fixing device (4) comprises a connecting rod (408), a translation plate (409) and a second sliding rod (410). The connecting rods (408) are provided in two groups, each group comprising two rods, and are respectively located in two fixing boxes (402). One end of the connecting rod (408) close to the fixing block (404) is movably mounted on one end of the second sliding block (406) away from the fixing block (404) through a rotating shaft. The translation plates (409) are provided in two groups, and are respectively movably arranged in the two fixing boxes (402). One end of each group of the connecting rods (408) away from the fixing block (404) is movably mounted on two ends of the two translation plates (409) through a rotating shaft. The second sliding rods (410) are provided in two groups, and are respectively movably mounted on one side of the two fixing boxes (402) away from the fixing block (404) through insertion. One end of each group of the second sliding rods (410) located in the fixing box (402) is fixedly mounted on one side of the translation plate (409) away from the fixing block (404).

8. The dynamically adjustable orthodontic appliance according to claim 7, characterized in that: The adjustable fixing device (4) comprises a translation threaded rod (411), a first fixing tube (412) and a second fixing tube (413); the translation threaded rod (411) is movably mounted in the middle of one side of the two fixing boxes (402) away from the fixing block (404); the two ends of the translation threaded rod (411) located in the fixing box (402) are respectively movably mounted in the middle of one side of the two translation plates (409) by threaded insertion; there are two first fixing tubes (412) and the two ends are respectively fixedly mounted between the two fixing boxes (402); the two first fixing tubes (412) are respectively movably sleeved on one end of two coaxial second sliding rods (410) located outside the fixing box (402); the two ends of the second fixing tube (413) are respectively fixedly mounted between the two fixing boxes (402) and movably sleeved outside the translation threaded rod (411).

9. The dynamically adjustable orthodontic appliance according to claim 8, characterized in that: The adjustable fixing device (4) comprises a worm wheel (414), a worm (415) and an adjusting head (416); the worm wheel (414) is located in the middle of the second fixing cylinder (413) and is fixedly sleeved in the middle of the translation threaded rod (411); the worm (415) is movably mounted on the front side of the worm wheel (414) through meshing; the worm (415) is located in the second fixing cylinder (413) and has two ends movably mounted on the top and bottom ends of the second fixing cylinder (413); and the adjusting head (416) is fixedly mounted on the bottom end of the worm (415).

Images