An adjustable mouth opening training aid

Abstract

The utility model relates to mouth opening training auxiliary technical field, concretely relates to an adjustable mouth opening training aid, including two grips, the inside screw thread connection of one of the grips has the screw rod, the left end rotation connection of two grips has the opening and closing mechanism, the left side fixed connection of opening and closing mechanism has two fixed plates, the inside slide connection of fixed plate has the adjusting mechanism, the left side slide connection of fixed plate has two transmission mechanisms, two adjusting mechanisms all include the slide plate, the outside slide connection of slide plate in the outside of fixed plate. In the utility model, the process of slide of slide plate will also drive the slide of limiting block, and slide away from the resistance of limiting frame, at this moment, the arc plate can drive the slide of limiting frame, make opposite arc plate slide to the far side, and then reach the purpose of adjusting, thereby improve its flexibility.

Description

Technical Field

[0001] This utility model relates to the field of mouth opening training assistance technology, and in particular to an adjustable mouth opening training aid. Background Technology

[0002] Mouth opening training aids are tools used to assist patients in mouth opening training. They are commonly used in oral and maxillofacial surgery, rehabilitation, and other fields to help patients whose mouth opening is limited for various reasons or who need oral function training. Postoperative wound healing processes can lead to scar tissue fibrosis and muscle contracture, directly restricting mandibular movement. For example, after tongue cancer surgery, patients may experience a gradual decrease in mouth opening due to limited tongue movement or traction from oral soft tissue scarring, affecting eating and speech functions.

[0003] First, clean your mouth and check the instruments. After sitting in a comfortable position, adjust the occlusal plate spacing to a slightly smaller initial value according to your own mouth opening. Hold the assistive device and align it with your teeth, then slowly open your mouth and bite down smoothly. After the bite is stable, manually widen your mouth opening. If you feel severe pain or abnormal noise, stop immediately and maintain the current mouth opening to perform small-range mandibular movement training.

[0004] In existing technologies, some mouth opening training aids have different mouth widths depending on the user. If the occlusal plate of the aid is too wide, exceeding the user's natural mouth opening range, it is not only difficult to place it accurately in the right position, but also causes uneven force on the teeth and occlusal plate, resulting in excessive pressure on the local gums or mucosa, causing pain, ulcers, or even damage, increasing the risk of oral infection, and reducing the flexibility of the mouth opening training aid. Therefore, to address the above shortcomings, an adjustable mouth opening training aid is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable mouth-opening training aid, which solves the problem that some existing mouth-opening training aids cannot adapt to different users, resulting in reduced flexibility.

[0006] To achieve the above objectives, this utility model provides an adjustable mouth-opening training aid, comprising two handles, one of which is internally threaded with a lead screw, and the left ends of both handles are rotatably connected to an opening and closing mechanism. Two fixed plates are fixedly connected to the left side of the opening and closing mechanism, and an adjustment mechanism is slidably connected inside the fixed plate. Two transmission mechanisms are slidably connected to the left side of the fixed plate. Both adjustment mechanisms include sliding plates, which are slidably connected to the outside of the fixed plate. Reset components are slidably connected to both the front and rear ends of the sliding plates. A strip-shaped opening is provided on the left side of the fixed plate. Multiple limiting blocks are fixedly connected to the opposite sides of the two sliding plates, and two limiting frames are slidably connected inside the fixed plate.

[0007] The opening and closing mechanism includes two opening and closing plates. The right side of the opening and closing plates is fixedly connected to the left side of the handle. A connecting plate is rotatably connected inside the two opening and closing plates. A fixing ring is fixedly connected inside the opening and closing plates. A torsion spring is sleeved on the outside of the two fixing rings. A connecting plate is rotatably connected inside one of the opening and closing plates, and an opening plate is rotatably connected inside the other opening and closing plate.

[0008] Among them, multiple transmission mechanisms include arc-shaped plates, the right sides of multiple arc-shaped plates are slidably connected to the left sides of two fixed plates, a second spring is fixedly connected to the bottom side of the inner wall of the arc-shaped plate, a sliding plate is fixedly connected to the top of the second spring, and an auxiliary plate is fixedly connected to the top side of the sliding plate.

[0009] Among them, multiple reset components include guide rods, and the exterior of two guide rods are respectively fixedly connected to the interior of the front and rear ends of the fixed plate, and a spring is sleeved on the exterior of the guide rods;

[0010] Among them, the far ends of the plurality of springs are respectively fixedly connected to the near sides of the two sliding plates, and the near ends of the plurality of springs are respectively fixedly connected to the far sides of the inner walls of the two fixed plates.

[0011] The left side of the connecting plate is fixedly connected to the right side of one of the fixed plates, and the left side of the opening plate is fixedly connected to the right side of the other fixed plate.

[0012] The limiting frame is internally slidably connected to the outside of the limiting block, and the connecting plate is externally slidably connected to the inside of the opening plate.

[0013] The sliding plate is slidably connected to the inside of the arc-shaped plate, and the auxiliary plate is slidably connected to the inside of the arc-shaped plate.

[0014] This utility model relates to an adjustable mouth-opening training aid.

[0015] 1. In this utility model, during the sliding process of the sliding plate, the limiting block will also slide and slide away from the restraint of the limiting frame. At this time, the arc plate can drive the limiting frame to slide, so that the relative arc plates slide to the far side, thereby achieving the purpose of adjustment and improving its flexibility.

[0016] 2. In this utility model, the teeth press against the auxiliary plate, at which time the auxiliary plate will push the sliding plate to slide and squeeze the second spring. The second spring stores elastic potential energy, and the sliding plate gives the auxiliary plate a force in the opposite direction to press against the teeth, thereby achieving assisted mouth opening training. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a perspective view of an adjustable mouth-opening training aid proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the fixing ring of an adjustable mouth-opening training aid proposed in this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the sliding plate of an adjustable mouth-opening training aid proposed in this utility model.

[0022] In the diagram: 1-Handle, 2-Lead screw, 3-Opening and closing mechanism, 31-Connecting plate, 32-Opening and closing plate, 33-Fixing ring, 34-Torsion spring, 35-Connecting plate, 36-Opening plate, 4-Fixing plate, 5-Adjusting mechanism, 51-Sliding plate, 52-Reset assembly, 5201-Guide rod, 5202-Spring 1, 53-Strip opening, 54-Limiting block, 55-Limiting frame, 6-Transmission mechanism, 61-Arc plate, 62-Spring 2, 63-Sliding plate, 64-Auxiliary plate. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0024] Reference Figures 1 to 3This utility model provides an embodiment of an adjustable mouth-opening training aid, comprising two grips 1 symmetrically distributed at an acute angle. One grip 1 is internally threaded with a lead screw 2, the position of which is adjusted by rotating the lead screw 2 to adjust the maximum distance between the two grips 1. An opening and closing mechanism 3 is rotatably connected to the left end of each grip 1. The opening and closing mechanism 3 includes two opening and closing plates 32, the right side of which is fixedly connected to the left side of the grip 1 by welding, thus providing support for the grip 1. A connecting plate 31 is rotatably connected internally to each of the two opening and closing plates 32, providing support for the rotation of the opening and closing plates 32. A fixing ring 33 is fixedly connected internally to each of the opening and closing plates 32 by welding, thus providing support for the fixing ring 33. Torsion springs 34 are sleeved on the outside of each of the two fixing rings 33. Sliding the two fixing rings 33 to the opposite side stretches the torsion springs 34, allowing the torsion springs 34 to store elastic potential energy, which then applies a force in the opposite direction to the fixing rings 33 for resetting.

[0025] One of the opening / closing plates 32 has a connecting plate 35 rotatably connected inside, so that the rotation of one of the opening / closing plates 32 drives the connecting plate 35 to rotate. Two fixed plates 4 are fixedly connected to the left side of the opening / closing mechanism 3. The left side of the connecting plate 35 is fixedly connected to the right side of one of the fixed plates 4, so that the rotation of the connecting plate 35 drives the rotation of one of the fixed plates 4. Another opening / closing plate 32 has an opening plate 36 rotatably connected inside, so that the rotation of the other opening / closing plate 32 drives the rotation of the opening plate 36. The outside of the connecting plate 35 is slidably connected to the inside of the opening plate 36. The connecting plate 35 and the opening plate 36 are interleaved to prevent jamming during rotation. The left side of the opening plate 36 is fixedly connected to the right side of the other fixed plate 4, so that the rotational force is transmitted to the other fixed plate 4 through the opening plate 36.

[0026] Reference Figures 2 to 4An adjustment mechanism 5 is slidably connected inside the fixed plate 4. Both adjustment mechanisms 5 include a rectangular sliding plate 51. The sliding plate 51 is slidably connected to the outside of the fixed plate 4, allowing it to slide stably due to the constraint of the fixed plate 4. Reset components 52 are slidably connected to both ends of the sliding plate 51, providing a reset force. Multiple reset components 52 include guide rods 5201, which are cylindrical. The two guide rods 5201 are fixedly connected to the inside of the front and rear ends of the fixed plate 4 by welding, providing support for the guide rods 5201. A spring 5202 is sleeved on the outside of the guide rod 5201, ensuring that the spring 5202 is evenly stressed by the constraint. Multiple springs 5202 are fixedly connected at opposite ends to the adjacent sides of two sliding plates 51. By sliding the sliding plates 51 to compress the springs 5202, the springs 5202 can store elastic potential energy, and then give the sliding plates 51 a force in the opposite direction to reset them.

[0027] Multiple springs 5202 are fixedly connected at their proximal ends to the inner walls of two fixed plates 4 on opposite sides, ensuring even force distribution on the springs 5202. A strip-shaped opening 53 is provided on the left side of the fixed plate 4, allowing for internal movement. Multiple limiting blocks 54 are fixedly connected to the opposite sides of the two sliding plates 51, transmitting sliding force to the limiting blocks 54. Two limiting frames 55 are slidably connected inside the fixed plate 4, allowing for stable sliding of the limiting frames 55. The limiting frames 55 are slidably connected to the outside of the limiting blocks 54, engaging with the limiting blocks 54 as they slide into the limiting frames 55.

[0028] Two transmission mechanisms 6 are slidably connected to the left side of the fixed plate 4, and the transmission mechanisms 6 are used to transmit power. Each of the multiple transmission mechanisms 6 includes an arc-shaped plate 61, which is used to abut against the upper and lower teeth for expansion. The right sides of the multiple arc-shaped plates 61 are slidably connected to the left sides of the two fixed plates 4, and the rotational force is transmitted to the arc-shaped plates 61 through the fixed plates 4. A second spring 62 is fixedly connected to the bottom inner wall of the arc-shaped plate 61, and by fixing the second spring 62, the force on the second spring 62 is evenly distributed. A sliding plate 63 is fixedly connected to the top of the second spring 62. The sliding plate 63 slides to compress the second spring 62, allowing the second spring 62 to store elastic potential energy, and then applies a force in the opposite direction to the second spring 62 for reset. The outside of the sliding plate 63 is slidably connected to the inside of the arc-shaped plate 61, and the constraint of the arc-shaped plate 61 allows the sliding plate 63 to slide stably. An auxiliary plate 64 is fixedly connected to the top side of the sliding plate 63, and the auxiliary plate 64 is used for auxiliary expansion. The auxiliary plate 64 is externally slidably connected to the inside of the arc plate 61. The arc plate 61 restricts the auxiliary plate 64 so that it can slide stably.

[0029] Working principle: Before use, the maximum distance between the two grips 1 is adjusted by rotating the screw 2 to accommodate the oral cavity size needs of different users. During training, the user holds the grips 1, and with the support of the connecting plate 31, drives the opening and closing plate 32 to rotate. Then, the two fixed rings 33 slide to the opposite side and stretch the torsion spring 34. At this time, the torsion spring 34 stores elastic potential energy, and then gives the grips 1 a force in the opposite direction to reset. During the rotation of the opening and closing plate 32, the connecting plate 35 and the opening plate 36 will also rotate, and then the two fixed plates 4 will slide to the opposite side, and drive the two arc plates 61 to rotate. The multiple arc plates 61 slide to the opposite side to press against the mouth for mouth opening training.

[0030] When the force is difficult to control at the limit, push the whole thing to slide, and then the teeth will press against the auxiliary plate 64. At this time, the auxiliary plate 64 will push the sliding plate 63 to slide and squeeze the second spring 62. Using the elastic potential energy stored in the second spring 62, the sliding plate 63 will give the auxiliary plate 64 a force in the opposite direction to press against the teeth, thereby achieving the assisted mouth opening training.

[0031] Then, based on the width of the user's mouth, the sliding plate 51 is pushed to slide, and then the guide rod 5201 is extended to slide and squeeze the spring 5202. At this time, the spring 5202 will store elastic potential energy, and then give the sliding plate 51 a force in the opposite direction to reset. During the sliding process of the sliding plate 51, it will also drive the limiting block 54 to slide and slide away from the resistance of the limiting frame 55. At this time, the arc plate 61 can drive the limiting frame 55 to slide, so that the opposite arc plate 61 slides to the far side, thereby achieving the purpose of adjustment and improving its flexibility. After the adjustment is completed, the pushing force on the sliding plate 51 is released, and the reset force of the spring 5202 is transmitted through the sliding plate 51 to the limiting block 54 to engage and fix it inside the limiting frame 55.

[0032] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An adjustable mouth opening exercise aid comprising two grips, characterised in that: One of the grips is internally threaded with a lead screw, and the left ends of both grips are rotatably connected to an opening and closing mechanism. The left side of the opening and closing mechanism is fixedly connected to two fixing plates, the inside of the fixing plates is slidably connected to an adjustment mechanism, and the left side of the fixing plates is slidably connected to two transmission mechanisms. Both adjustment mechanisms include a sliding plate, which is slidably connected to the outside of the fixed plate. Reset components are slidably connected to both the front and rear ends of the sliding plate. A strip-shaped opening is provided on the left side of the fixed plate. Multiple limiting blocks are fixedly connected to the opposite sides of the two sliding plates. Two limiting frames are slidably connected inside the fixed plate.

2. The adjustable mouth opening exercise aid of claim 1, wherein: The opening and closing mechanism includes two opening and closing plates. The right side of the opening and closing plates is fixedly connected to the left side of the handle. A connecting plate is rotatably connected inside the two opening and closing plates. A fixing ring is fixedly connected inside the opening and closing plates. A torsion spring is sleeved on the outside of the two fixing rings. A connecting plate is rotatably connected inside one of the opening and closing plates, and an opening plate is rotatably connected inside the other opening and closing plate.

3. The adjustable mouth exercise aid of claim 1, wherein: Each of the multiple transmission mechanisms includes an arc-shaped plate, the right side of each of the multiple arc-shaped plates is slidably connected to the left side of the two fixed plates, a second spring is fixedly connected to the bottom side of the inner wall of the arc-shaped plate, a sliding plate is fixedly connected to the top of the second spring, and an auxiliary plate is fixedly connected to the top side of the sliding plate.

4. The adjustable mouth exercise aid of claim 1, wherein: Each of the reset components includes a guide rod, and the exterior of two of the guide rods is fixedly connected to the interior of the front and rear ends of the fixed plate, respectively. A spring is sleeved on the exterior of each guide rod.

5. An adjustable mouth exercise aid according to claim 4, wherein: The distal ends of the plurality of springs are respectively fixedly connected to the adjacent sides of the two sliding plates, and the adjacent ends of the plurality of springs are respectively fixedly connected to the distal sides of the inner walls of the two fixed plates.

6. The adjustable mouth exercise aid of claim 2, wherein: The left side of the connecting plate is fixedly connected to the right side of one of the fixed plates, and the left side of the opening plate is fixedly connected to the right side of the other fixed plate.

7. An adjustable mouth exercise aid according to claim 2, wherein: The inner part of the limiting frame is slidably connected to the outer part of the limiting block, and the outer part of the connecting plate is slidably connected to the inner part of the opening plate.

8. An adjustable mouth-opening training aid according to claim 3, characterized in that: The sliding plate is slidably connected to the inside of the arc-shaped plate, and the auxiliary plate is slidably connected to the inside of the arc-shaped plate.

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