Oral and maxillofacial muscle strength rehabilitation training device

Abstract

The present invention provides an oral and maxillofacial muscle strength rehabilitation training device, comprising a first bite plate and a second bite plate, a mounting box and a mounting block are arranged between the two bite plates, a sliding mechanism is arranged outside the mounting box for the two bite plates to slide towards each other or move away from each other, a supporting mechanism is arranged inside the mounting box to structurally support the two bite plates, and a limiting mechanism is arranged at the mounting block for structurally limiting the two bite plates when they are closed in place; the supporting mechanism comprises an airbag, the airbag is arranged in the inner cavity of the mounting box, the side wall of the mounting box is arranged with a moving groove, a moving plate is slidably inserted in the moving groove, an extrusion plate is arranged inside the moving plate, the extrusion plate extends to the corresponding outer end of the airbag, and when the airbag expands, the extrusion plate is pushed to contact the two bite plates, thereby supporting the two bite plates. The present invention can cooperate with the patient to perform the opening and closing action of the oral cavity, thereby facilitating the rehabilitation training of the patient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an oral and maxillofacial muscle strength rehabilitation training device. Background Art

[0002] Oral and maxillofacial surgery is a discipline that focuses on surgical treatment and the prevention and treatment of certain diseases related to the oral organs, facial soft tissues, maxillofacial bones, temporomandibular joints, salivary glands, and neck. The oral and maxillofacial regions are important organs used by the human body for eating, making facial expressions, and speaking. Some patients suffer from insufficient maxillofacial muscle strength or unilateral paralysis due to brain damage or facial nerve damage, which manifests as incomplete lip closure, drooling, slurred speech, or one corner of the mouth pulled toward the opposite side. While treating these patients, rehabilitation training of the oral and maxillofacial muscles is also required to restore the normal oral opening and closing function of the patients.

[0003] However, in the prior art, when performing oral rehabilitation training on patients, it is necessary to replace a large number of dental pads from thin to thick to meet the oral rehabilitation training needs of the patients, which not only wastes costs but also brings great inconvenience to the patients. Moreover, for patients with different health conditions, the loads applicable to rehabilitation training are different, which cannot better adapt to the individualized rehabilitation needs of patients. Summary of the invention

[0004] In order to make up for the above deficiencies, the present invention provides an oral and maxillofacial muscle strength rehabilitation training device that overcomes the above technical problems or at least partially solves the above problems.

[0005] The present invention adopts the following technical scheme: an oral and maxillofacial muscle strength rehabilitation training device, comprising a first bite plate and a second bite plate, an installation box and a installation block are arranged between the first bite plate and the second bite plate, a sliding mechanism is arranged outside the installation box for the first bite plate and the second bite plate to slide towards or away from each other, a supporting mechanism is arranged inside the installation box for structurally supporting the first bite plate and the second bite plate, and a limiting mechanism is arranged at the installation block for structurally limiting the first bite plate and the second bite plate when they are closed in place; the supporting mechanism comprises an airbag, the airbag is arranged in the inner cavity of the installation box, the side wall of the installation box is provided with a movable groove, a movable plate is slidably inserted in the movable groove, an extrusion plate is arranged on the inner side of the movable plate, the extrusion plate extends to the corresponding outer end of the airbag, and when the airbag expands, the extrusion plate is pushed to contact the first bite plate and the second bite plate, thereby supporting the first bite plate and the second bite plate.

[0006] As an improvement, the airbag is connected to the outside through an air pipe, the end of the air pipe away from the airbag passes through the outside of the installation box and is connected to an air cylinder, a piston disk is movably arranged in the inner cavity of the air cylinder, a piston rod is connected to the lower part of the piston disk and passes through the outside of the air cylinder.

[0007] As an improvement, a rotating cylinder is installed at the bottom of the gas cylinder, a thread groove is provided on the surface of the piston rod, and the rotating cylinder is threadedly connected to the thread groove, and a rotating ring is installed at the bottom of the rotating cylinder.

[0008] As an improvement, a chassis is provided at the bottom of the inner cavity of the air cylinder, a first spring is installed on the top of the chassis, the top of the first spring is connected to the bottom of the piston disk, and a rotating cylinder is installed at the bottom of the chassis, the piston rod is plug-in-matched with the rotating cylinder, a rotating ring is installed at the bottom of the rotating cylinder, a movable disk is installed on the surface of the piston rod, a fixed ring is installed on the inner surface of the air cylinder, a second fixed groove is provided on the inner wall of the fixed ring, a third spring is installed on the inner wall of the second fixed groove, a locking block is installed on the inner end of the third spring, a locking groove is provided on the surface of the movable disk, and the locking block is plug-in-matched with the locking groove, a support rod is installed on the inner wall of the second fixed groove, and the inner side of the support rod is connected to the locking block.

[0009] As an improvement, the sliding mechanism includes a sliding plate, which is respectively installed on the front and rear sides of the opposite surfaces of the first bite plate and the second bite plate. A sliding block is installed on the inner side of the sliding plate. Sliding grooves are provided on the front and rear sides of the mounting box, and the sliding block is located in the sliding groove for sliding fit.

[0010] As an improvement, the limiting mechanism includes two groups of mounting cylinders, which are respectively arranged on the opposite surfaces of the first bite plate and the second bite plate. The inner wall of the mounting cylinder is provided with a movable telescopic cylinder, the outer end of the telescopic cylinder is connected to the mounting block, and the mounting block and the mounting cylinder are provided with corresponding plug-in grooves. The bottom of the mounting cylinder is provided with a plug-in ring which is plug-in compatible with the plug-in groove.

[0011] As an improvement, a limiting groove is provided on the inner wall of the plug-in ring, a first fixing groove is provided on the inner wall of the plug-in groove, a second spring is installed on the inner wall of the first fixing groove, a limiting block is installed on the outer end of the second spring, and the limiting block is plug-in-fitted with the limiting groove. The limiting block releases the plug-in lock of the limiting groove by retracting.

[0012] As an improvement, a mounting groove is provided on the front side of the inner cavity of the mounting block, a transmission rod is rotatably mounted in the mounting groove, a transmission wheel is mounted on the surface of the transmission rod, and a transmission belt is sleeved on the surface of the transmission wheel, a first bevel gear is mounted on the back of the transmission rod, an extension rod is inserted into the inner cavity of the telescopic cylinder, and the extension rod passes through the outer sides of the first bite plate and the second bite plate respectively, a first screw rod is mounted on the inner side of the extension rod, and a second bevel gear meshing with the first bevel gear is mounted on the surface of the first screw rod, and a rotating rod connected to the transmission rod is arranged on the outside of the mounting block; Limit plates are set at the positions of the telescopic cylinders on both sides of the installation groove corresponding to each other. Two sets of screw sleeves are installed on the surface of the first screw rod, and the limit plates and the surfaces of the screw sleeves are plugged together to limit the translation of the screw sleeves along the direction of the limit plates. A pull rope is installed on the surface of the screw sleeve. The pull rope passes through the inner cavity of the first fixed groove and is connected to the limit block. When the driving rotating rod is rotated, the transmission rod, the transmission wheel, the transmission belt, the first bevel gear, the second bevel gear and the first screw rod are driven to move synchronously. The first screw rod drives the movement of the screw sleeve and then pulls the pull rope to separate the limit block from the limit groove.

[0013] Beneficial effects of the present invention:

[0014] 1. By setting up a supporting mechanism, after the airbag is inflated, the airbag can be expanded to squeeze the first bite plate and the second bite plate, so as to support the patient's oral cavity and cooperate with the patient to open and close the oral cavity, thereby facilitating rehabilitation training for the patient.

[0015] 2. By setting a limit mechanism, the first bite plate and the second bite plate can be stored and limited when the equipment is not in use, thereby reducing the space occupied by the equipment and making it easier to store the equipment.

[0016] 3. By providing a sliding mechanism, the stability of the closing and separation states of the first bite plate and the second bite plate is improved, thereby improving the comfort of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those skilled in the art, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the installation box of the present invention.

[0020] Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of the sliding plate of the present invention.

[0021] Figure 4 It is a schematic diagram of the three-dimensional cross-sectional structure of the mounting block of the present invention.

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the transmission rod of the present invention.

[0023] Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the installation tube of the present invention.

[0024] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0025] Figure 8 It is a schematic diagram of the three-dimensional cross-sectional structure of the gas cylinder in Example 1 of the present invention.

[0026] Fig. 9 It is a schematic diagram of the three-dimensional cross-sectional structure of the gas cylinder in Example 2 of the present invention.

[0027] Fig.10 It is a schematic diagram of the three-dimensional cross-sectional structure of the fixing ring in Example 2 of the present invention.

[0028] In the figure: 1, first bite plate; 2, second bite plate; 3, mounting box; 4, mounting block; 5, air bag; 6, moving groove; 7, moving plate; 8, extrusion plate; 9, air pipe; 10, air cylinder; 11, piston plate; 12, piston rod; 13, rotating cylinder; 14, threaded groove; 15, rotating ring; 16, sliding plate; 17, sliding groove; 18, sliding block; 19, mounting cylinder; 20, telescopic cylinder; 21, plug-in groove; 22, plug-in ring; 23, limit groove; 24, first fixed groove; 2 5. Second spring; 26. Limit block; 27. Mounting slot; 28. Transmission rod; 29. ​​Transmission wheel; 30. Transmission belt; 31. First bevel gear; 32. Extension rod; 33. First screw rod; 34. Second bevel gear; 35. Rotating rod; 36. Limit plate; 37. Screw sleeve; 38. Pull rope; 39. Chassis; 40. First spring; 41. Moving plate; 42. Fixed ring; 43. Second fixed slot; 44. Third spring; 45. Block block; 46. Block slot; 47. Support rod. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0030] Reference Figure 1-Figure 10 The present invention provides a technical solution: an oral and maxillofacial muscle strength rehabilitation training device, comprising a first bite plate 1 and a second bite plate 2, a mounting box 3 and a mounting block 4 are arranged between the first bite plate 1 and the second bite plate 2, a sliding mechanism is arranged outside the mounting box 3 for the first bite plate 1 and the second bite plate 2 to slide towards or away from each other, a supporting mechanism is arranged inside the mounting box 3 to structurally support the first bite plate 1 and the second bite plate 2, and a limiting mechanism is arranged at the mounting block 4 for structurally limiting the first bite plate 1 and the second bite plate 2 when they are closed in place; the supporting mechanism comprises an airbag 5, the airbag 5 is arranged in the inner cavity of the mounting box 3, a moving groove 6 is arranged on the side wall of the mounting box 3, a moving plate 7 is slidably inserted in the moving groove 6, an extrusion plate 8 is arranged on the inner side of the moving plate 7, and the extrusion plate 8 extends to the outer end of the corresponding airbag 5, and when the airbag 5 expands, the extrusion plate 8 is pushed to contact the first bite plate 1 and the second bite plate 2, thereby supporting the first bite plate 1 and the second bite plate 2.

[0031] When the present invention is in use, a mounting box 3 is arranged between the first bite plate 1 and the second bite plate 2, and the airbag 5 pushes the extrusion plate 8 corresponding to the first bite plate 1 and the second bite plate 2 from the mounting box 3 to contact the second bite plate 2 and the first bite plate 1, thereby expanding the distance between the first bite plate 1 and the second bite plate 2, so as to facilitate the patient's upper and lower jaws to be opened, and then facilitate the patient's opening and closing of the mouth for training. The moving groove 6 is arranged along the direction of separation and closing of the first bite plate 1 and the second bite plate 2, and the moving plate 7 slides along the moving groove 6, thereby limiting the moving track of the extrusion plate 8, and a group of moving plates 7 and extrusion plates 8 are respectively arranged corresponding to the first bite plate 1 and the second bite plate 2. When the airbag 5 is inflated, the extrusion plates 8 facing both sides are pushed toward the first bite plate 1 and the second bite plate 2, respectively, thereby expanding the distance between the two. The patient squeezes the first bite plate 1 and the second bite plate 2 by moving the upper and lower jaws, and the supporting mechanism can be reset after being squeezed, and the upper and lower jaws of the patient are reset with the assistance of the first bite plate 1 and the second bite plate 2. After installation, the sliding mechanism is connected to the first bite plate 1 and the second bite plate 2, so that the sliding mechanism limits the moving track of the first bite plate 1 and the second bite plate 2 to move closer and farther, thereby avoiding deviation when the first bite plate 1 and the second bite plate 2 are bitten and squeezed, and improving the comfort and stability of use. When the device is not in use, the first bite plate 1 and the second bite plate 2 are moved inward and the first bite plate 1 and the second bite plate 2 are limited by the limiting mechanism, thereby reducing the space occupied by the device and facilitating the storage of the device.

[0032] As an improved specific implementation method, the airbag 5 is connected to the outside through an air supply pipe 9, and one end of the air supply pipe 9 away from the airbag 5 passes through the outside of the installation box 3 and is connected to an air cylinder 10. A piston disk 11 is movably provided in the inner cavity of the air cylinder 10, and a piston rod 12 is connected to the lower part of the piston disk 11 and passes through the outside of the air cylinder 10.

[0033] A rotating cylinder 13 is installed at the bottom of the gas cylinder 10 . A thread groove 14 is provided on the surface of the piston rod 12 . The rotating cylinder 13 is threadedly connected to the thread groove 14 . A rotating ring 15 is installed at the bottom of the rotating cylinder 13 .

[0034] like Figure 1 , 8 As shown, as embodiment 1 of the gas cylinder:

[0035] When it is necessary to move the piston disk 11, the threaded groove 14 on the surface of the piston rod 12 is threadedly connected to the rotating cylinder 13, so that when the piston rod 12 rotates and moves upward, it squeezes the piston disk 11 and the air in the cavity above the piston disk 11, so that the air is transported to the air bag 5 through the air supply pipe 9, so that the inflated air bag 5 supports the first bite plate 1 and the second bite plate 2, which can open the patient's mouth and squeeze the first bite plate 1 and the second bite plate 2 through the patient's bite force. Since the air in the air bag 5 is transported to the air cylinder 10 through the air supply pipe 9 and cannot squeeze the piston disk 11, the air can only be squeezed in the air bag 5, so that when the air bag 5 is squeezed harder and harder, the supporting force of the air bag 5 becomes stronger, thereby improving the supporting force of the air bag 5 on the first bite plate 1 and the second bite plate 2, and improving the intensity of rehabilitation training, thereby meeting the training needs of patients in the later stage of rehabilitation.

[0036] As an improved specific implementation manner, a chassis 39 is provided at the bottom of the inner cavity of the air cylinder 10, a first spring 40 is installed on the top of the chassis 39, the top of the first spring 40 is connected to the bottom of the piston disk 11, and a rotating cylinder 13 is installed at the bottom of the chassis 39, the piston rod 12 is plugged into the rotating cylinder 13, a rotating ring 15 is installed at the bottom of the rotating cylinder 13, a moving disk 41 is installed on the surface of the piston rod 12, a fixing ring 42 is installed on the inner surface of the air cylinder 10, a second fixing groove 43 is provided on the inner wall of the fixing ring 42, a third spring 44 is installed on the inner wall of the second fixing groove 43, a blocking block 45 is installed on the inner end of the third spring 44, a blocking groove 46 is provided on the surface of the moving disk 41, and the blocking block 45 is plugged into the blocking groove 46, a support rod 47 is installed on the inner wall of the second fixing groove 43, and the inner side of the support rod 47 is connected to the blocking block 45.

[0037] like Figure 1 , 9 , as shown in 10, as embodiment 2 of the gas cylinder:

[0038] When the piston rod 12 is moved upward, the piston disk 11 is pushed, and the air in the cavity above the piston disk 11 is transported to the airbag 5 through the air supply pipe 9, so that the airbag 5 expands, and then the upper and lower jaws of the patient are supported by the first bite plate 1 and the second bite plate 2, and the patient's mouth is stretched open. When the patient performs rehabilitation training and squeezes the first bite plate 1 and the second bite plate 2, the first bite plate 1 and the second bite plate 2 can squeeze the airbag 5, so that the air in the airbag 5 flows back into the air cylinder 10, and the refluxed air can squeeze the piston disk 11 to reset the piston disk 11, which can meet the intensity of the patient's initial rehabilitation training. Furthermore, the rotating ring 15 can be rotated to squeeze the rotating cylinder 13 upward to squeeze the first spring 40, and the squeezing force of the first spring 40 on the piston disc 11 can be increased by reducing the compression space of the first spring 40, thereby facilitating the increase of the air pressure strength required when the piston disc 11 is reset, thereby increasing the intensity of the patient's rehabilitation training, and the required squeezing strength can be adjusted according to the patient's needs, thereby avoiding the initial high training intensity from causing a blow to the patient's confidence in rehabilitation training, so that the patient can increase the support strength of the airbag 5 when it is squeezed by adjusting the height of the chassis 39 during rehabilitation training, so that the patient can clearly know the progress of his own training, thereby increasing the patient's Confidence in rehabilitation; on the other hand, a fixed ring 42 and a locking block 45 thereon are further provided to limit the piston disk 11. When no rehabilitation training is performed, the piston rod 12 is pulled down to reset, and the locking groove 46 of the movable disk 41 is aligned with the locking block 45, and then the locking groove 46 is locked, which is convenient for limiting the piston rod 12 and the piston disk 11, so that when stored, the air bag 5 is squeezed by the first bite plate 1 and the second bite plate 2, and the excess air in the air bag 5 is transported to the air cylinder 10, so as to facilitate the first bite plate 1 and the second bite plate 2 to be limited in a small space, thereby reducing the space occupied by the equipment and facilitating the storage of the equipment.

[0039] As an improved specific embodiment, the sliding mechanism includes a sliding plate 16, which is respectively installed on the front and rear sides of the opposite surfaces of the first bite plate 1 and the second bite plate 2. A sliding block 18 is installed on the inner side of the sliding plate 16. Sliding grooves 17 are provided on the front and rear sides of the mounting box 3, and the sliding block 18 is located in the sliding groove 17 for sliding fit.

[0040] like Figure 1 , 2 As shown in FIG. 3 , the sliding block 18 can slide along the arrangement direction of the sliding groove 17, so that when the first bite plate 1 and the second bite plate 2 are separated and the airbag 5 squeezes the first bite plate 1 and the second bite plate 2, the movement of the first bite plate 1 and the second bite plate 2 can be stabilized.

[0041] As an improved specific implementation method, the limiting mechanism includes two groups of mounting cylinders 19, and the two groups of mounting cylinders 19 are respectively arranged on the opposite surfaces of the first bite plate 1 and the second bite plate 2. The inner wall of the mounting cylinder 19 is provided with a movable telescopic cylinder 20, and the outer end of the telescopic cylinder 20 is connected to the mounting block 4. The mounting block 4 and the mounting cylinder 19 are correspondingly provided with plug-in grooves 21, and the bottom of the mounting cylinder 19 is provided with a plug-in ring 22 which is plugged into the plug-in groove 21.

[0042] A limit groove 23 is provided on the inner wall of the plug-in ring 22, a first fixed groove 24 is provided on the inner wall of the plug-in groove 21, a second spring 25 is installed on the inner wall of the first fixed groove 24, a limit block 26 is installed on the outer end of the second spring 25, and the limit block 26 is plugged in and matched with the limit groove 23. The limit block 26 releases the plug-in lock of the limit groove 23 by retracting.

[0043] like Figure 1 , 4 As shown in , 6, and 7, the installation tube 19 is axially movable and installed corresponding to the telescopic tube 20, and is inserted into the plug-in groove 21 through the plug-in ring 22; when the limit groove 23 on the inner wall of the plug-in ring 22 corresponds to the limit block 26, the limit block 26 is plugged and matched with the limit groove 23 to limit the installation tube 19, and the limit block 26 is resisted by the second spring 25 to improve the locking stability, so that the first bite plate 1 and the second bite plate 2 can be moved to reduce the occupied space of the equipment, thereby facilitating the storage of the equipment. When it is needed, the limit block 26 can be retracted to release the lock of the limit groove 23, and the installation tube 19 and the first bite plate 1 and the second bite plate 2 connected thereto can be reopened.

[0044] As an improved specific implementation manner, a mounting groove 27 is opened on the front side of the inner cavity of the mounting block 4, and a transmission rod 28 is rotatably mounted in the mounting groove 27, a transmission wheel 29 is mounted on the surface of the transmission rod 28, and a transmission belt 30 is sleeved on the surface of the transmission wheel 29, a first bevel gear 31 is mounted on the back of the transmission rod 28, an extension rod 32 is inserted into the inner cavity of the telescopic cylinder 20, and the extension rod 32 respectively penetrates the outside of the first bite plate 1 and the second bite plate 2, a first screw rod 33 is mounted on the inner side of the extension rod 32, and a second bevel gear 34 meshing with the first bevel gear 31 is mounted on the surface of the first screw rod 33, and a rotating rod 35 connected to the transmission rod 28 is arranged on the outside of the mounting block 4; Limit plates 36 are provided inside the mounting groove 27 at the positions of the telescopic cylinder 20 on both sides. Two sets of screw sleeves 37 are installed on the surface of the first screw rod 33, and the limit plates 36 and the surfaces of the screw sleeves 37 are plugged together to limit the translation of the screw sleeve 37 along the direction of the limit plates 36. A pull rope 38 is installed on the surface of the screw sleeve 37. The pull rope 38 passes through the inner cavity of the first fixed groove 24 and is connected to the limit block 26. When the driving rotating rod 35 is rotated, the transmission rod 28, the transmission wheel 29, the transmission belt 30, the first bevel gear 31, the second bevel gear 34, and the first screw rod 33 are synchronously driven to move. The first screw rod 33 drives the movement of the screw sleeve 37 and then pulls the pull rope 38 to separate the limit block 26 from the limit groove 23.

[0045] like Figure 4 , 5 As shown in FIGS. 6 and 7 , the mounting groove 27 is opened for the installation of the overall transmission mechanism, and the rotating rod 35 passing through the outside of the mounting block 4 is for human operation. When in use, the user rotates the rotating rod 35 to drive the transmission rod 28 to rotate. When multiple transmission rods 28 are provided, the transmission wheel 29 on the transmission rod 28 drives the transmission belt 30 to be linked, and the first bevel gear 31 on the transmission rod 28 rotates, transmitting power to the second bevel gear 34 and the coaxial first screw rod 33 to rotate, and the first screw rod 33 drives the screw sleeve 37 to move axially. The rotation of the screw sleeve 37 is limited by the limit plate 36, and then the screw sleeve 37 can be translated along the axial direction of the first screw rod 33, and then the pull rope 38 is pulled to separate the limit block 26 from the limit groove 23, thereby releasing the limit on the plug-in ring 22, and after the airbag 5 is inflated, the airbag 5 can expand to move the first bite plate 1 and the second bite plate 2, thereby supporting the upper and lower jaws of the patient, so that the patient can open and close the mouth for rehabilitation training. When the plug ring 22 is to be re-limited, the rotating rod 35 is rotated in the opposite direction to reset the entire transmission mechanism. The pull rope 38 that has lost its tension no longer restricts the limit block 26. The limit block 26 can be re-locked by the elastic force of the second spring 25 against the limit slot 23.

[0046] In summary, taking the device structure shown in the accompanying drawings as an example, the working process or working principle of an oral and maxillofacial muscle strength rehabilitation training device is as follows: when in use, firstly, the surface exposed structures such as the first bite plate 1 and the second bite plate 2 are sterilized and disinfected, then the patient opens the mouth, and places the first bite plate 1 and the second bite plate 2 between the patient's upper teeth and lower teeth, so that the patient can bite the first bite plate 1 and the second bite plate 2, and rotate the rotating rod 35 to make the rotating rod 35 drive the transmission rod 28 to rotate. When one group of transmission rods 28 rotates, the transmission wheel 29 can drive another group of transmission wheels 29 to rotate through the transmission belt 30, so that the two groups of transmission rods 28 rotate at the same time. When the two groups of transmission rods 28 rotate, the second bevel gear 34 can be driven to rotate at the same time through the first bevel gear 31. When the second bevel gear 34 rotates, it will drive the first screw rod 33 to rotate, drive the screw sleeve 37 to move upward, and when the screw sleeve 37 moves upward, it can pull the pull rope 38. The pull rope 38 pulls the limit block 26, thereby separating the limit block 26 from the limit groove 23, and then the piston rod 12 is moved, so that the piston rod 12 drives the piston disc 11 to move, so that the piston disc 11 moves upward to squeeze the air in the air cylinder 10 above the piston disc 11, so that the air in the air cylinder 10 is transported to the air bag 5 through the air supply pipe 9, and the air bag 5 is inflated and then squeezed to squeeze the squeezing plate 8, so that the squeezing plate 8 drives the moving plate 7 to move, and when the squeezing plate 8 moves, it will squeeze the first bite plate 1 and the second bite plate 2, and the patient's mouth can be stretched open by the first bite plate 1 and the second bite plate 2, which is convenient for the patient to bite the first bite plate 1 and the second bite plate 2 independently, so that the first bite plate 1 and the second bite plate 2 squeeze the air in the air bag 5, so as to carry out rehabilitation training for the patient, avoid the patient's empty mouth training, which will cause the upper and lower teeth to collide and wear or teeth and gums to cause pain, thereby improving the safety during training.

[0047] When the equipment needs to be stored after training, the equipment is first sterilized and disinfected, and the piston rod 12 is moved downward, so that the piston rod 12 drives the piston disc 11 to move downward and reset, and the excess air in the airbag 5 is collected into the air cylinder 10, and then the first bite plate 1 and the second bite plate 2 are squeezed to fit with the installation box 3, and the airbag 5 is squeezed. When the first bite plate 1 and the second bite plate 2 are squeezed, the installation tube 19 can drive the plug ring 22 to be inserted into the plug groove 21, and the limit groove 23 is aligned with the limit block 26, and then the rotating rod 35 is rotated in the opposite direction to make the rotating The rod 35 drives the transmission rod 28 to rotate in the opposite direction, so that the transmission rod 28 can drive the first screw rod 33 to rotate through the first bevel gear 31 and the second bevel gear 34, so that the first screw rod 33 can drive the screw sleeve 37 to reset. When the screw sleeve 37 is reset, the traction force of the screw sleeve 37 on the pull rope 38 is weakened, so that the second spring 25 squeezes the limit block 26, so that the limit block 26 is inserted into the limit groove 23 to limit the rotating ring 15. The first bite plate 1 and the second bite plate 2 can be limited by the installation tube 19, thereby reducing the space occupied by the equipment and facilitating the storage of the equipment.

[0048] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An oral and maxillofacial muscle strength rehabilitation training device, comprising a first bite plate (1) and a second bite plate (2), characterized in that: An installation box (3) and an installation block (4) are provided between the first bite plate (1) and the second bite plate (2); a sliding mechanism is provided outside the installation box (3) for the first bite plate (1) and the second bite plate (2) to slide towards or away from each other; a supporting mechanism is provided inside the installation box (3) for structurally supporting the first bite plate (1) and the second bite plate (2); a limiting mechanism is provided at the installation block (4) for structurally limiting the first bite plate (1) and the second bite plate (2) when they are closed in place; the supporting mechanism The invention comprises an airbag (5), wherein the airbag (5) is arranged in the inner cavity of the installation box (3), the side wall of the installation box (3) is provided with a movable groove (6), a movable plate (7) is slidably inserted in the movable groove (6), an extrusion plate (8) is arranged on the inner side of the movable plate (7), and the extrusion plate (8) extends to the outer end of the corresponding airbag (5), and when the airbag (5) expands, the extrusion plate (8) is pushed to contact the first bite plate (1) and the second bite plate (2), thereby supporting the first bite plate (1) and the second bite plate (2); The limiting mechanism comprises two groups of mounting cylinders (19), the two groups of mounting cylinders (19) being respectively arranged on opposite surfaces of the first bite plate (1) and the second bite plate (2), the inner wall of the mounting cylinder (19) being provided with a movable telescopic cylinder (20), the outer end of the telescopic cylinder (20) being connected to the mounting block (4), the mounting block (4) and the mounting cylinder (19) being provided with corresponding plug-in grooves (21), and the bottom of the mounting cylinder (19) being provided with a plug-in ring (22) pluggable with the plug-in groove (21).

2. The oral and maxillofacial muscle strength rehabilitation training device according to claim 1, characterized in that: The air bag (5) is connected to the outside through an air supply pipe (9), and one end of the air supply pipe (9) away from the air bag (5) passes through the outside of the installation box (3) and is connected to an air cylinder (10). A piston disc (11) is movably provided in the inner cavity of the air cylinder (10), and a piston rod (12) is connected to the lower part of the piston disc (11) and passes through the outside of the air cylinder (10).

3. The oral and maxillofacial muscle strength rehabilitation training device according to claim 2, characterized in that: A rotating cylinder (13) is installed at the bottom of the gas cylinder (10), a thread groove (14) is provided on the surface of the piston rod (12), and the rotating cylinder (13) is threadedly connected to the thread groove (14), and a rotating ring (15) is installed at the bottom of the rotating cylinder (13).

4. The oral and maxillofacial muscle strength rehabilitation training device according to claim 2, characterized in that: A chassis (39) is provided at the bottom of the inner cavity of the gas cylinder (10), a first spring (40) is installed on the top of the chassis (39), the top end of the first spring (40) is connected to the bottom of the piston plate (11), and a rotating cylinder (13) is installed at the bottom of the chassis (39), the piston rod (12) is plug-fitted with the rotating cylinder (13), a rotating ring (15) is installed at the bottom of the rotating cylinder (13), a moving disk (41) is installed on the surface of the piston rod (12), and the inner surface of the gas cylinder (10) is installed A fixing ring (42) is provided, the inner wall of the fixing ring (42) is provided with a second fixing groove (43), the inner wall of the second fixing groove (43) is provided with a third spring (44), the inner end of the third spring (44) is provided with a locking block (45), the surface of the movable plate (41) is provided with a locking groove (46), the locking block (45) is plugged into and matched with the locking groove (46), the inner wall of the second fixing groove (43) is provided with a support rod (47), and the inner side of the support rod (47) is connected to the locking block (45).

5. An oral and maxillofacial muscle strength rehabilitation training device according to any one of claims 1 to 4, characterized in that: The sliding mechanism comprises a sliding plate (16), wherein the sliding plate (16) is respectively mounted on the front side and the rear side of the opposite surfaces of the first bite plate (1) and the second bite plate (2), and a sliding block (18) is mounted on the inner side of the sliding plate (16). The front and rear sides of the installation box (3) are both provided with sliding grooves (17), and the sliding block (18) is located in the sliding groove (17) for sliding engagement.

6. The oral and maxillofacial muscle strength rehabilitation training device according to claim 1, characterized in that: The inner wall of the plug-in ring (22) is provided with a limit groove (23), the inner wall of the plug-in groove (21) is provided with a first fixing groove (24), the inner wall of the first fixing groove (24) is installed with a second spring (25), the outer end of the second spring (25) is installed with a limit block (26), and the limit block (26) is plugged into and matched with the limit groove (23), and the limit block (26) releases the plug-in lock of the limit groove (23) by retracting.

7. The oral and maxillofacial muscle strength rehabilitation training device according to claim 6, characterized in that: A mounting groove (27) is provided at the front side of the inner cavity of the mounting block (4), a transmission rod (28) is rotatably mounted in the mounting groove (27), a transmission wheel (29) is mounted on the surface of the transmission rod (28), and a transmission belt (30) is sleeved on the surface of the transmission wheel (29), a first bevel gear (31) is mounted on the back of the transmission rod (28), an extension rod (32) is inserted into the inner cavity of the telescopic cylinder (20), and the extension rod (32) respectively penetrates the outer sides of the first bite plate (1) and the second bite plate (2), a first screw rod (33) is mounted on the inner side of the extension rod (32), and a second bevel gear (34) meshing with the first bevel gear (31) is mounted on the surface of the first screw rod (33), and a rotating rod (35) connected to the transmission rod (28) is arranged on the outside of the mounting block (4); the mounting groove (2 7) A limit plate (36) is provided at the position of the telescopic cylinder (20) on both sides thereof, two groups of screw sleeves (37) are installed on the surface of the first screw rod (33), and the limit plate (36) and the surface of the screw sleeve (37) are plugged and matched to limit the screw sleeve (37) from being able to translate along the direction of the limit plate (36), a pull rope (38) is installed on the surface of the screw sleeve (37), and the pull rope (38) passes through the inner cavity of the first fixed groove (24) and is connected to the limit block (26), when the driving rotating rod (35) is rotated, the transmission rod (28), the transmission wheel (29), the transmission belt (30), the first bevel gear (31), the second bevel gear (34), and the first screw rod (33) are synchronously driven to move, and the first screw rod (33) drives the screw sleeve (37) to move, thereby pulling the pull rope (38) to separate the limit block (26) from the limit groove (23).

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