Device for assisting pronunciation of dysarthria and exercising temporomandibular joint

By designing an articulation-aiding pronunciation and temporomandibular joint training device that cooperates with a limiting plug rod and an elastic part, the problem of poor adaptability of the pronunciation hose is solved, the efficiency and comfort of pronunciation training are achieved, individual differences are adapted, and the pronunciation and temporomandibular joint conditions of children are improved.

CN223323978UActive Publication Date: 2025-09-12THE THIRD XIANGYA HOSPITAL OF CENT SOUTH UNIV
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Patent Information

Application Number
CN202422555889.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-23
Publication Date
2025-09-12
Estimated Expiration
2034-10-23

AI Technical Summary

Technical Problem

Existing pronunciation hoses have poor adaptability and need to be frequently replaced according to different pronunciation requirements. They cannot adapt to individual differences and affect the effect of children's pronunciation training.

Method used

A device for assisting pronunciation and exercising the temporomandibular joint for articulation disorders is designed. The angle of the movable plate can be adjusted and fixed by cooperating with a limiting rod and an elastic part, thereby adapting to different caliber requirements and reducing the frequency of replacing the pronunciation hose.

Benefits of technology

It improves the adaptability and efficiency of pronunciation training, reduces the inconvenience of replacing pronunciation hoses, and improves temporomandibular joint disorder and pronunciation training effects by precisely controlling mandibular movement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an auxiliary pronunciation and temporomandibular joint exercise device for dysarthria, which comprises a first movable plate, a second movable plate, a third movable plate and a third movable plate, the second movable plate is provided with a second hinge piece, and the second hinge piece is hinged to the first hinge piece; the limiting inserting rod is provided with a fixing position and an adjusting position, and the limiting inserting rod at the fixing position is inserted into the clamping hole so that the limiting inserting rod and the first hinge piece can be fixed in the circumferential direction; and the elastic piece is used for applying elastic acting force to the limiting insertion rod. The included angle is adjusted through relative rotation of the second movable plate and the first movable plate, so that the height of the whole structure is adjusted to adapt to different calibers needing to be opened; through cooperation of the limiting insertion rod and the elastic piece, a user can easily switch between a fixing position and an adjusting position, and rapid adjustment is achieved; according to the device, the adaptability of control over different mandibular movements is improved, and the trouble caused by frequent replacement of a sounding rubber tube is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical rehabilitation training, in particular to a device for assisting pronunciation of articulation disorders and exercising the temporomandibular joint. Background Art

[0002] In medicine, disorders related to mandibular movement often require the use of exercise devices to assist with mandibular movement. Examples include pediatric articulation disorders and temporomandibular joint disorders. Children with articulation disorders face numerous challenges with mandibular control, primarily manifesting as limited mandibular movement, excessive mandibular movement, graded mandibular control disorders, and mandibular conversion disorders. These issues severely impact children's daily communication and quality of life. To help these children improve their pronunciation, currently available pronunciation hoses are mostly cylindrical in shape, varying in diameter. This design guides children to produce different sounds by varying the opening diameter. For example, low jaw articulation is typically associated with the vowel "a," while a wide, semi-open jaw articulation is associated with "o" and "u," a narrow, semi-open jaw articulation is associated with "e," and a high jaw articulation is associated with "i." However, this method requires selecting different diameter hoses based on the desired opening diameter of the child's mouth. Different pronunciation requirements necessitate different hoses, resulting in poor adaptability. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a device for assisting pronunciation of articulation disorders and exercising the temporomandibular joint.

[0004] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0005] The cam is secured to the rear of the second movable plate and is adapted to engage the first hinge piece when the cam is engaged with the first hinge piece, and the cam is secured to the rear of the second movable plate and is adapted to engage the first hinge piece when the cam is engaged with the first hinge piece.

[0006] Furthermore, a plurality of limiting grooves are evenly arranged around the peripheral wall of the locking hole, a convex tooth shaft is provided at one end of the limiting rod facing the first hinge piece, and a plurality of convex teeth are evenly arranged around the peripheral wall of the convex tooth shaft, and the convex teeth on the limiting rod in the fixed position are embedded in the limiting groove.

[0007] Furthermore, a guide block is provided on the back side of the second movable plate, the guide block is provided with a guide hole, the limiting plug rod includes a guide rod, and the cross-sectional profile of the guide rod is adapted to the guide hole.

[0008] Furthermore, the cross-sectional profiles of the guide rod and the guide hole are polygonal.

[0009] Furthermore, a convex disc is provided between the convex gear shaft and the guide rod, and the contour of the convex disc is larger than the locking hole.

[0010] Furthermore, the elastic member is a compression spring sleeved on the guide rod, and the compression spring is located between the convex plate and the guide block.

[0011] Furthermore, one side of the first hinge piece is provided with a first hinge column and a second hinge column arranged apart from each other, and one side of the second hinge piece is provided with a third hinge column embedded between the first hinge column and the second hinge column. The first hinge column and the second hinge column are provided with corresponding hole positions for hinged connection through a hinge axis, and the locking hole is provided on the end face of the second hinge column facing away from the first hinge column.

[0012] Furthermore, a first axial hole is provided at the center of the first hinge column, a threaded hole is provided at the center of the end face of the second hinge column facing the first hinge column, and a third axial hole is provided at the center of the third hinge column that is adapted to the first axial hole. The hinge shaft includes a central shaft and a threaded shaft, the central shaft passes through the first axial hole and the third axial hole, and the threaded shaft is threadedly connected to the threaded hole.

[0013] Furthermore, the front surfaces of the first movable plate and the second movable plate are both provided with protrusions arranged in a matrix.

[0014] Furthermore, operating handles are provided on the back sides of the first movable plate and the second movable plate.

[0015] The utility model has the following beneficial effects:

[0016] By hinged connection of the second hinge piece with the first hinge piece, the relative rotation of the second movable plate and the first movable plate is achieved, thereby adjusting the angle, and thus adjusting the height of the overall structure to adapt to different calibers that need to be opened; by utilizing the cooperation of the limit rod and the elastic member, the user can easily switch between the fixed position and the adjustment position to achieve rapid adjustment, and the elastic member can keep the limit rod in a fixed position when not subject to large external forces, thereby fixing the height of the overall structure; this device reduces the inconvenience of selecting pronunciation hoses with appropriate diameter specifications, allows adjustment according to individual differences, improves the adaptability to different mandibular movement control, and avoids the trouble caused by frequent replacement of pronunciation hoses; by precisely controlling and training mandibular movement, it can improve temporomandibular joint disorders and help children better imitate and practice target phonemes, thereby improving the effect of pronunciation training; it provides a more effective, comfortable and user-friendly auxiliary pronunciation training device for children with functional articulation disorders, which is expected to significantly improve the quality and efficiency of pronunciation training.

[0017] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 yes Figure 1 A structural diagram from another perspective;

[0021] Figure 3 It is a cross-sectional view of the connection structure of the first hinge column, the second hinge column, the third hinge column, the limiting plug rod and the elastic member;

[0022] Figure 4 yes Figure 3 A magnified view of point A;

[0023] Figure 5 yes Figure 1 Schematic diagram of the decomposed state structure;

[0024] Figure 6 yes Figure 5 Enlarged view of point B.

[0025] Legend:

[0026] The first movable plate 100, the first hinge piece 110, the positioning hole 120, the limiting groove 121, the first hinge column 130, the first shaft hole 131, the second hinge column 140, and the threaded hole 141;

[0027] The second movable plate 200, the second hinge piece 210, the guide block 220, the guide hole 221, the third hinge column 230, and the third shaft hole 231;

[0028] Limiting rod 300, convex gear shaft 310, convex teeth 311, guide rod 320, convex disc 330;

[0029] elastic member 400;

[0030] Articulated shaft 500, central shaft 510, threaded shaft 520;

[0031] 600 convex;

[0032] Operating handle 700. DETAILED DESCRIPTION

[0033] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0037] Please refer to Figure 1and Figure 2 In a preferred embodiment, the present invention provides a device for assisting pronunciation and exercising the temporomandibular joint for articulation disorders, comprising a first movable plate 100, a second movable plate 200, a limiting rod 300 and an elastic member 400.

[0038] A first hinge piece 110 is fixedly mounted on the back of the first movable panel 100, and a locking hole 120 is provided on the first hinge piece 110. A second hinge piece 210 is fixedly mounted on the back of the second movable panel 200, and one side of the second hinge piece 210 is hingedly connected to the first hinge piece 110 to adjust the angle between the second movable panel 200 and the first movable panel 100. The limiting rod 300 has a fixed position and an adjustable position. The limiting rod 300 is movably installed on the second movable plate 200 to realize switching between the fixed position and the adjustable position. The limiting rod 300 is circumferentially fixed relative to the second movable plate 200, that is, the limiting rod 300 cannot rotate along its own circumference relative to the second movable plate 200, and can only perform telescopic movements. The limiting rod 300 is aligned with the positioning hole 120. It can be understood that the limiting rod 300 and the positioning hole 120 are both on the hinge axis of the second hinge piece 210 and the first hinge piece 110, so that the hinged rotation movement will not affect the alignment of the limiting rod 300 and the positioning hole 120. The fixed position limiting rod 300 is inserted into the locking hole 120 to achieve circumferential fixation between the limiting rod 300 and the first hinge piece 110. The circumferential fixation between the limiting rod 300 and the first hinge piece 110 means that the limiting rod 300 cannot rotate relative to the first hinge piece 110 along its own circumferential direction. Since the limiting rod 300 is circumferentially fixed relative to the second movable plate 200, the angle of the first movable plate 100 and the second movable plate 200 is fixed. The adjustable position limiting rod 300 is disengaged from the locking hole 120, thereby unlocking the limiting rod 300 from the first hinge piece 110. The adjustable position limiting rod 300 can rotate relative to the first hinge piece 110 along its own circumferential direction, thereby achieving angle adjustment of the first movable plate 100 and the second movable plate 200.

[0039] The elastic member 400 is used to apply an elastic force to the limiting rod 300 , and the elastic force is used to push the position-adjusting limiting rod 300 to move toward the fixed position.

[0040] The present invention provides a device for assisting pronunciation and exercising the temporomandibular joint for dysarthria. By hingedly connecting the second hinge piece 210 to the first hinge piece 110, the second movable plate 200 and the first movable plate 100 can rotate relative to each other, thereby adjusting the angle and, therefore, the height of the overall structure, to accommodate different openings. By cooperating with the limiting rod 300 and the elastic member 400, the user can easily switch between a fixed position and an adjustable position, enabling rapid adjustment. Furthermore, the elastic member 400 can maintain the limiting rod 300 in a fixed position when not subject to significant external forces, thereby fixing the height of the overall structure. The device reduces the inconvenience of selecting a pronunciation hose of appropriate diameter and specification, allows adjustment based on individual differences, improves adaptability to different mandibular movement control, and avoids the inconvenience of frequent hose replacement. By precisely controlling mandibular movement, the device helps children better imitate and practice target phonemes, thereby improving the effectiveness of pronunciation training. The device provides a more effective, comfortable, and user-friendly pronunciation assistance training device for children with functional articulation disorders, potentially significantly improving the quality and efficiency of pronunciation training.

[0041] In addition, the first movable plate 100 and the second movable plate 200 of the device are triangular when opened, which provides better stability. On the one hand, due to the wide base width of the triangle, the child's tongue can be well fixed. On the other hand, when opened, there is a certain height, which can prevent the child's mouth from closing, making it easier to elicit and correct the patient's tongue root sounds. By adjusting to different angles, different pronunciation training can be achieved. For example, when the angle of the first movable plate 100 and the second movable plate 200 is usually adjusted to 90 degrees, the child's low mandibular pronunciation (a) can be practiced. When the angle of the first movable plate 100 and the second movable plate 200 is adjusted to about 30 to 60 degrees, the child's large half-open mandibular pronunciation (o and u) and (g, k) can be practiced. When the angle is adjusted to about 180 degrees, the child's small half-open mandibular pronunciation (e) can be practiced. When the angle is adjusted to 0 degrees and the mouth is vertically opened, the high mandibular pronunciation (i) can be practiced. There are other pronunciations that can be practiced, which will not be described in detail here. In addition, of course, there are certain individual differences, and the specific angles and corresponding pronunciations may vary. Of course, the device can be set in several specifications, and different specifications of the device correspond to different sizes of the first movable plate 100 and the second movable plate 200 to suit patients of different body shapes. For example, a patient with a larger mouth can use a large-sized device. Of course, during use, different pronunciation training for the same patient does not require switching between different-sized devices. Only one-sized device is needed, and there is no need to frequently change tools.

[0042] It is understood that the first movable plate 100 and the first hinge piece 110 can be integrally connected or fixed by screws; the second movable plate 200 and the second hinge piece 210 can be integrally connected or fixed by screws; to ensure hygiene, the first movable plate 100, the first hinge piece 110, the second movable plate 200, the second hinge piece 210, the limiting plug rod 300 and the elastic member 400 can all be made of 316 stainless steel. To improve surface comfort, the first movable plate 100, the first hinge piece 110, the second movable plate 200 and the second hinge piece 210 can be coated with a layer of silicone. Of course, to reduce the discomfort caused by the sharp edges of the structure scratching the mouth, the edges of the first movable plate 100, the first hinge piece 110, the second movable plate 200 and the second hinge piece 210 can be rounded chamfered.

[0043] Reference Figure 6 In a further embodiment of the present invention, a plurality of limiting grooves 121 are evenly arranged around the peripheral wall of the locking hole 120, and a convex tooth shaft 310 is provided at one end of the limiting rod 300 facing the first hinge piece 110, and a plurality of convex teeth 311 are evenly arranged around the peripheral wall of the convex tooth shaft 310, and the convex teeth 311 on the limiting rod 300 in a fixed position are embedded in the limiting groove 121. Since the limiting grooves 121 and the protruding teeth 311 are evenly arranged around the periphery, when the rotation angle is an integer multiple of the central angle of two adjacent protruding teeth 311, the protruding teeth 311 can be inserted into different limiting grooves 121, thereby achieving angle adjustment. For example, when there are 8 limiting grooves 121 and protruding teeth 311 evenly arranged around the periphery, the central angle of two adjacent protruding teeth 311 is 45°. After the protruding gear shaft 310 is removed from the locking hole 120, it can be rotated by an angle that is an integer multiple of 45°. The protruding teeth 311 on the protruding gear shaft 310 are then reinserted into the limiting grooves 121 to achieve angle adjustment and fixation. When there are 12 limiting grooves 121 and protruding teeth 311 evenly arranged around the periphery, the adjustable angle is an integer multiple of 30°. Of course, the number of limiting grooves 121 and protruding teeth 311 evenly arranged around the periphery can be selected according to the angle to be adjusted.

[0044] Reference Figure 1 、 Figure 2 and Figure 5 In a further embodiment of the present invention, a guide block 220 is provided on the back side of the second movable plate 200, and the guide block 220 is provided with a guide hole 221. The limiting plug rod 300 includes a guide rod 320, and the guide rod 320 is coaxially arranged with the convex gear shaft 310. The cross-sectional profile of the guide rod 320 is adapted to the guide hole 221, thereby achieving stable guidance.

[0045] Reference Figure 5In a further embodiment of the present invention, the cross-sectional profile of the guide rod 320 and the guide hole 221 is a polygon, thereby realizing the circumferential fixation of the guide rod 320 and the second movable plate 200. Specifically, the cross-sectional profile of the guide rod 320 and the guide hole 221 is a square, and the corners are chamfered with arcs.

[0046] Reference Figure 6 In a further embodiment of the present invention, a cam 330 is provided between the convex gear shaft 310 and the guide rod 320. The contour of the cam 330 is larger than the positioning hole 120, thereby limiting the depth of the convex gear shaft 310 inserted into the positioning hole 120, avoiding excessive insertion depth, resulting in the need to pull the limiting rod 300 for too long when adjustment is required, causing operation troubles.

[0047] Reference Figure 6 In a further embodiment of the present invention, the elastic member 400 is a compression spring sleeved on the guide rod 320 , and the compression spring is located between the convex plate 330 and the guide block 220 , thereby providing a stable elastic force for the limiting rod 300 .

[0048] Reference Figure 6 In some embodiments of the present invention, a first hinge column 130 and a second hinge column 140 are provided on one side of the first hinge piece 110, and a third hinge column 230 is provided on one side of the second hinge piece 210, which is embedded between the first hinge column 130 and the second hinge column 140. The first hinge column 130 and the second hinge column 140 are provided with corresponding holes for hinge connection through the hinge shaft 500, and the locking hole 120 is provided on the end surface of the second hinge column 140 facing away from the first hinge column 130. When in use, one end of the first movable plate 100 and the second movable plate 200 is inserted into the oral cavity, and the other end is used for manual operation. The first hinge column 130 is provided on the end of the first movable plate 100 that is closer to the end that is inserted into the oral cavity than the second hinge column 140. As a result, the limit rod 300 is located on the side close to the manual operation, which facilitates manual operation of the limit rod 300.

[0049] Reference Figure 3 、 Figure 4 and Figure 5In a further embodiment of the present invention, a first axial hole 131 is provided at the center of the first hinge column 130, a threaded hole 141 is provided at the center of the end surface of the second hinge column 140 facing the first hinge column 130, and a third axial hole 231 is provided at the center of the third hinge column 230 to match the first axial hole 131. The hinge shaft 500 includes a central shaft 510 and a threaded shaft 520. The central shaft 510 is passed through the first axial hole 131 and the third axial hole 231, thereby realizing the hinge connection between the first hinge column 130 and the third hinge column 230. Specifically, the cross-sectional profile of the central shaft 510, the first axial hole 131 and the third axial hole 231 is circular; the threaded shaft 520 is threadedly connected to the threaded hole 141, thereby realizing the connection and fixation of the hinge shaft 500.

[0050] Reference Figure 1 In a further embodiment of the present invention, the front surfaces of the first and second movable panels 100 and 200 are each provided with protrusions 600 arranged in a matrix. It is understood that the protrusions 600 are distributed on the ends of the first and second movable panels 100 and 200 that are intended to penetrate the oral cavity. The protrusions 600 provide oral stimulation, enhancing the tactile stimulation when brushing the tongue and cheeks of the child, facilitating training for patients with oral sensory impairment.

[0051] Reference Figure 1 In a further embodiment of the present invention, an operating handle 700 is provided on the back side of the first movable panel 100 and the second movable panel 200 to facilitate operation of the first movable panel 100 and the second movable panel 200. It can be understood that the operating handle 700 is provided at one end of the first movable panel 100 and the second movable panel 200 for manual operation. The operating handle 700 and the protrusion 600 are respectively provided at both ends of the first movable panel 100 and the second movable panel 200.

[0052] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for assisting pronunciation and exercising the temporomandibular joint for articulation disorders, characterized in that: include: A first movable plate (100) has a first hinge piece (110) fixedly mounted on its back, and a locking hole (120) is provided on the first hinge piece (110); A second movable plate (200) is fixedly mounted with a second hinge piece (210) on the back thereof, and one side of the second hinge piece (210) is hinged to the first hinge piece (110) to achieve angle adjustment between the second movable plate (200) and the first movable plate (100); A limiting rod (300) has a fixed position and an adjustable position, and is movably mounted on the second movable plate (200) to achieve switching between the fixed position and the adjustable position. The limiting rod (300) is circumferentially fixed relative to the second movable plate (200). The limiting rod (300) is aligned with the positioning hole (120). The limiting rod (300) at the fixed position is inserted into the positioning hole (120) to achieve circumferential fixation of the limiting rod (300) and the first hinge piece (110). The limiting rod (300) at the adjustable position is disengaged from the positioning hole (120). The elastic member (400) is used to apply an elastic force to the position-limiting plug rod (300), and the elastic force is used to push the position-adjusting position-limiting plug rod (300) toward the fixed position.

2. The device for assisting pronunciation and exercising the temporomandibular joint for articulation disorders according to claim 1, characterized in that: The peripheral wall of the locking hole (120) is evenly arranged with a plurality of limiting grooves (121); the end of the limiting rod (300) facing the first hinge piece (110) is provided with a convex tooth shaft (310); the peripheral wall of the convex tooth shaft (310) is provided with a plurality of convex teeth (311) evenly arranged; the convex teeth (311) on the limiting rod (300) at a fixed position are embedded in the limiting groove (121).

3. The device for assisting pronunciation and exercising the temporomandibular joint for articulation disorders according to claim 2, characterized in that: A guide block (220) is provided on the back side of the second movable plate (200), and the guide block (220) is provided with a guide hole (221). The limiting plug rod (300) includes a guide rod (320), and the cross-sectional profile of the guide rod (320) is adapted to the guide hole (221).

4. The device for assisting pronunciation and exercising the temporomandibular joint for articulation disorders according to claim 3, characterized in that: The cross-sectional profiles of the guide rod (320) and the guide hole (221) are polygonal.

5. The device for assisting pronunciation and exercising the temporomandibular joint for dysarthria according to claim 4, characterized in that: A convex disc (330) is provided between the convex gear shaft (310) and the guide rod (320), and the contour of the convex disc (330) is larger than the positioning hole (120).

6. The device for assisting pronunciation and exercising the temporomandibular joint for articulation disorders according to claim 5, characterized in that: The elastic member (400) is a compression spring sleeved on the guide rod (320), and the compression spring is located between the convex disc (330) and the guide block (220).

7. The device for assisting pronunciation and exercising the temporomandibular joint for dysarthria according to claim 1, characterized in that: One side of the first hinge piece (110) is provided with a first hinge column (130) and a second hinge column (140) which are arranged in a spaced relationship. One side of the second hinge piece (210) is provided with a third hinge column (230) which is embedded between the first hinge column (130) and the second hinge column (140). The first hinge column (130) and the second hinge column (140) are provided with corresponding holes for being hinged through a hinge shaft (500). The locking hole (120) is provided on the end face of the second hinge column (140) which is opposite to the first hinge column (130).

8. The device for assisting pronunciation and exercising the temporomandibular joint for articulation disorders according to claim 7, wherein: The first hinge column (130) is provided with a first axial hole (131) at the center, the second hinge column (140) is provided with a threaded hole (141) at the center of the end surface facing the first hinge column (130), the third hinge column (230) is provided with a third axial hole (231) adapted to the first axial hole (131), the hinge shaft (500) includes a central shaft (510) and a threaded shaft (520), the central shaft (510) is passed through the first axial hole (131) and the third axial hole (231), and the threaded shaft (520) is threadedly connected to the threaded hole (141).

9. The device for assisting pronunciation and exercising the temporomandibular joint for dysarthria according to claim 1, characterized in that: The front surfaces of the first movable plate (100) and the second movable plate (200) are both provided with protrusions (600) arranged in a matrix.

10. The device for assisting pronunciation and exercising the temporomandibular joint for dysarthria according to claim 1, characterized in that: An operating handle (700) is provided on the back side of the first movable panel (100) and the second movable panel (200).