Adjustable orthodontic mouth gag

Abstract

The utility model discloses an adjustable orthodontic mouth gag, the adjustable orthodontic mouth gag includes: mounting seat, slide subassembly and rotatory subassembly, mounting seat is placed in the oral cavity, slide subassembly includes slide cylinder and U-shaped top frame, the number of slide subassembly is two, and the slide cylinder is equipped with the U-shaped top frame. The sliding barrels of the two sliding assemblies are slidably installed in the first channel and the second channel correspondingly, the ends, away from the containing cavity, of the sliding barrels extend out of the first channel or the second channel, the U-shaped top frame is installed at the ends, away from the containing cavity, of the sliding barrels, and internal threads are arranged on the inner circumferential walls of the sliding barrels. The number of the threaded rods is two, the two threaded rods are in threaded fit with the two sliding barrels respectively, the transmission assembly is in transmission connection between the threaded rods and the connecting rod, and the end, away from the transmission assembly, of the connecting rod is suitable for extending out of the oral cavity. According to the adjustable orthodontic mouth gag, the stability is good, the operation of a doctor can be facilitated, and the operation convenience is improved.

Description

Adjustable orthodontic mouth opener Technical Field

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

[0002] Orthodontics is a broad term referring to all methods of correcting dental and maxillofacial deformities. It includes traditional metal braces, invisible braces, and surgical procedures such as tooth extraction and osteotomy. During orthodontic treatment, an mouth opener is used to keep the patient's mouth open to facilitate treatment by the dentist.

[0003] Oral opening devices in related technologies require adjustment inside the patient's mouth to open it, which is inconvenient for doctors to operate and reduces ease of use. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide an adjustable orthodontic mouth opener that has good stability and facilitates operation by the physician, thereby improving the convenience of operation.

[0005] According to an embodiment of the present invention, an adjustable orthodontic mouth opener includes: a mounting base, a sliding assembly, and a rotating assembly. The mounting base includes a body and a first tube and a second tube symmetrically disposed on both sides of the body in a first direction. The body has a receiving cavity. The first tube has a first channel penetrating through it in the first direction, and the second tube has a second channel penetrating through it in the first direction. Both the first channel and the second channel communicate with the receiving cavity. The sliding assembly includes a sliding cylinder and a U-shaped top frame. Two sliding assemblies are provided, and the sliding cylinders of the two sliding assemblies are slidably mounted on the first channel and the second channel respectively in the first direction. Each channel has a rotation-limiting structure to restrict the rotation of the slide cylinder. The end of the slide cylinder away from the receiving cavity extends out of the first channel or the second channel. The U-shaped top frame is installed at the end of the slide cylinder away from the receiving cavity. The inner peripheral wall of the slide cylinder is provided with internal threads. A rotating assembly is provided, which includes a connecting rod, a transmission assembly, and a threaded rod. Two threaded rods are provided, and the two threaded rods are respectively threaded with the two slide cylinders. The transmission assembly is located in the receiving cavity and is drivenly connected to the threaded rods. The connecting rod extends along a second direction, and the end of the connecting rod is drivenly connected to the transmission assembly. The first direction and the second direction are perpendicular to each other. The mounting seat is placed in the oral cavity, and the end of the connecting rod away from the transmission assembly is adapted to extend out of the oral cavity.

[0006] The adjustable orthodontic mouth opener according to the present invention can stably open the patient's mouth. Furthermore, when operating the adjustable orthodontic mouth opener, the doctor can operate it outside the patient's mouth, which is beneficial to the doctor and thus improves the convenience of operation.

[0007] The adjustable orthodontic mouth opener of this invention may also have the following additional technical features:

[0008] In some embodiments of this utility model, the transmission assembly includes a worm gear and a worm, both of which are located within the receiving cavity. The worm is driven to one side of the worm gear in a third direction. The worm gear is coaxially connected to the threaded rod, and the two threaded rods are respectively located on both sides of the worm gear in the first direction. The end of the connecting rod is coaxially connected to the worm, and the third direction is perpendicular to the first direction and the second direction, respectively.

[0009] In some embodiments of this utility model, the body includes a first body and a second body connected together. The second body is connected to one side of the first body in the third direction. The first body has a first receiving cavity, and the second body has a second receiving cavity. The first receiving cavity and the second receiving cavity communicate to form the receiving cavity. The worm gear is rotatably mounted in the first receiving cavity, and the worm is rotatably mounted in the second receiving cavity. The second body has an opening on one side in the second direction, and the opening communicates with the second receiving cavity. The connecting rod extends into the second receiving cavity through the opening and is connected to the worm.

[0010] In some embodiments of this utility model, the opening is provided with an internal thread, the rotating assembly further includes a connecting pipe, the end of the connecting pipe has an external thread, the end of the connecting pipe is threaded into the opening, and the connecting rod is movably inserted through the connecting pipe.

[0011] In some embodiments of this utility model, in a projection plane perpendicular to the first direction, the projected shapes of the slide cylinder, the first channel, and the second channel are all polygons. The inner peripheral walls of the first channel and the second channel are constructed as the rotation-limiting structure. The outer peripheral wall of the slide cylinder is fitted with the inner peripheral wall to restrict the rotation of the slide cylinder.

[0012] In some embodiments of this utility model, the adjustable orthodontic mouth opener further includes baffles, and two baffles are provided. The two baffles are symmetrically installed on both sides of the mounting base in the second direction, and both baffles are constructed as arc-shaped baffles with the middle part protruding in the direction away from the mounting base.

[0013] In some embodiments of this utility model, one end of the baffle is connected to the end of the first tube body away from the main body, and the other end is connected to the end of the second tube body away from the second tube body.

[0014] In some embodiments of this utility model, a handle is provided at the end of the connecting rod away from the transmission assembly.

[0015] In some embodiments of this utility model, the body is a one-piece molded part.

[0016] In some embodiments of this utility model, the adjustable orthodontic mouth opener further includes pads, and two pads are provided, with the two pads respectively installed in the U-shaped grooves of the two U-shaped top frames.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 is a perspective view of the adjustable orthodontic mouth opener of this utility model;

[0020] Figure 2 is a top view of the adjustable orthodontic mouth opener of this utility model;

[0021] Figure 3 is a schematic cross-sectional view of the structure at point AA in Figure 2;

[0022] Figure 4 is a schematic cross-sectional view of the structure at BB in Figure 2;

[0023] Figure 5 is a schematic diagram of the connecting rod of the adjustable orthodontic mouth opener of this utility model;

[0024] Figure 6 is a schematic diagram of the worm gear structure of the adjustable orthodontic mouth opener of this utility model;

[0025] Figure 7 is a schematic diagram of the mounting base of the adjustable orthodontic mouth opener of this utility model.

[0026] Figure label:

[0027] 100. Adjustable orthodontic mouth opener;

[0028] 1. Mounting bracket;

[0029] 2. Sliding assembly; 3. Worm gear; 4. Threaded rod; 5. Worm; 6. Shaft; 7. Opening; 8. Slot; 9. Connecting pipe; 11. Slide cylinder; 12. U-shaped top frame; 13. Connecting rod; 14. Rotating handle; 15. Insert block; 16. Baffle plate; 17. Pad block;

[0030] 18. Body; 181. First body; 182. Second body; 19. First tube body; 20. Second tube body;

[0031] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The adjustable orthodontic mouth opener 100 according to an embodiment of the present invention is described below with reference to Figures 1-7.

[0036] As shown in Figures 1-7, the adjustable orthodontic mouth opener 100 according to an embodiment of the present invention includes: a mounting base 1, a sliding assembly 2, and a rotating assembly. The mounting base 1 includes a body 18 and a first tube 19 and a second tube 20 symmetrically arranged on both sides of the body 18 in a first direction X. The body 18 has a receiving cavity. The first tube 19 has a first channel extending through the first tube 19 in the first direction X. The second tube 20 has a second channel extending through the second tube 20 in the first direction X. Both the first channel and the second channel communicate with the receiving cavity. The sliding assembly 2 includes a slide cylinder 11 and a U-shaped top frame 12. Two sliding assemblies 2 are provided. The slide cylinders 11 of the two sliding assemblies 2 are slidably mounted in the first channel and the second channel respectively in the first direction X. Both the first and second channels have a rotation-limiting structure to restrict the rotation of the slide cylinder 11. The end of the slide cylinder 11 away from the receiving cavity extends out of the first or second channel. The U-shaped top frame 12 is installed at the end of the slide cylinder 11 away from the receiving cavity. The inner circumferential wall of the slide cylinder 11 is provided with internal threads. The rotating assembly includes a connecting rod 13, a transmission assembly, and a threaded rod 4. There are two threaded rods 4, which are threadedly engaged with the two slide cylinders 11 respectively. The transmission assembly is located in the receiving cavity and is connected to the threaded rod 4. The connecting rod 13 extends along the second direction Y, and the end of the connecting rod 13 is connected to the transmission assembly. The first direction X and the second direction Y are perpendicular to each other. The mounting seat 1 is placed in the oral cavity, and the end of the connecting rod 13 away from the transmission assembly is adapted to extend out of the oral cavity.

[0037] For example, the first tube 19 can be a square tube or a round tube, and this application does not impose any restrictions.

[0038] For example, the first tube 19 can be a square tube or a round tube, and this application does not impose any restrictions.

[0039] For example, the first direction X can be referred to as the up-down direction shown in Figure 1, the second direction Y can be referred to as the front-back direction shown in Figure 1, and similarly, the third direction Z can be referred to as the left-right direction shown in Figure 1. The first direction X, the second direction Y and the third direction Z of this application can all be referred to as the directions shown in Figure 1, and will not be elaborated on in the following description.

[0040] When opening the patient's mouth with the adjustable orthodontic mouth opener 100 of this invention, the mounting base 1 can be placed into the patient's mouth first. At this time, the two U-shaped top brackets 12 can respectively abut against the patient's upper and lower teeth. The U-shaped top brackets 12 have U-shaped slots, and the upper and lower teeth can be positioned on the two U-shaped top brackets 12 through the slots. Then the doctor can operate the connecting rod 13. Specifically, when the connecting rod 13 rotates, it can drive the two threaded rods 4 to rotate through the transmission component. During the rotation of the two threaded rods 4, they can respectively drive the two sliding cylinders 11. The adjustable orthodontic mouth opener 100 moves in a direction away from each other, thereby opening the patient's upper and lower teeth and thus opening the patient's oral cavity. During this process, the limiting of the slot can reduce the risk of the patient's upper or lower teeth disengaging from the U-shaped top frame 12. This allows the adjustable orthodontic mouth opener 100 of this invention to stably open the patient's oral cavity. Similarly, when the adjustable orthodontic mouth opener 100 is removed from the patient's oral cavity, it is only necessary to rotate the connecting rod 13 in the opposite direction, thereby causing the two sliding cylinders 11 to move in a direction closer to each other. This application will not elaborate on this.

[0041] Furthermore, the end of the connecting rod 13 away from the transmission component is adapted to extend outside the oral cavity, allowing the doctor to operate the adjustable orthodontic mouth opener 100 outside the patient's oral cavity, which is beneficial to the doctor's operation and thus improves the convenience of operation.

[0042] The adjustable orthodontic mouth opener 100 according to the present invention can stably open the patient's mouth. Furthermore, when the doctor operates the adjustable orthodontic mouth opener 100, the operation can be performed outside the patient's mouth, which is beneficial to the doctor's operation and thus improves the convenience of operation.

[0043] In some embodiments of this utility model, as shown in Figures 1-7, the transmission assembly includes a worm gear 3 and a worm 5. Both the worm gear 3 and the worm 5 are located within the receiving cavity. The worm 5 is drivenly connected to one side of the third direction Z of the worm gear 3. The worm gear 3 is coaxially connected to the threaded rod 4. The two threaded rods 4 are located on both sides of the first direction X of the worm gear 3, respectively. The end of the connecting rod 13 is coaxially connected to the worm 5. The third direction Z is perpendicular to the first direction X and the second direction Y, respectively.

[0044] In other words, when the worm 5 rotates in a certain direction (such as clockwise), the worm wheel 3 rotates in the opposite direction (such as counterclockwise). Since the two threaded rods 4 are coaxial with the worm wheel 3, their rotation direction must be based on their respective axial directions: with the worm wheel 3 as the center, when the upper threaded rod 4 and the lower threaded rod 4 both rotate counterclockwise with the worm wheel 3, the threads of the upper threaded rod 4 and the lower threaded rod 4 have opposite directions of rotation. When the upper threaded rod 4 (such as right-handed) rotates, it presents a certain direction of rotation along the axial direction (such as upward), while the lower threaded rod 4 (such as left-handed) presents the opposite direction of rotation along the axial direction (such as downward). Thus, during the rotation of the two threaded rods 4, they can respectively drive the two slide cylinders 11 to move in directions away from each other or towards each other.

[0045] In some embodiments of this utility model, as shown in Figures 1-7, the body 18 includes a first body 181 and a second body 182 connected together. The second body 182 is connected to the first body 181 on the third direction Z side. The first body 181 has a first receiving cavity, and the second body 182 has a second receiving cavity. The first receiving cavity and the second receiving cavity are connected to form a receiving cavity. The worm gear 3 is rotatably mounted in the first receiving cavity, and the worm 5 is rotatably mounted in the second receiving cavity. The second body 182 has an opening 7 on the second direction Y side. The opening 7 is connected to the second receiving cavity, and the connecting rod 13 extends into the second receiving cavity through the opening 7 and is connected to the worm 5.

[0046] As shown in Figures 1-7, the first body 181 can be tubular, and the second body 182 can also be tubular. Specifically, in the axial direction of the first tube 19, the diameter of the first tube 19 gradually decreases from the middle to both ends. In the axial direction of the second tube 20, the diameter of the second tube 20 gradually decreases from the middle to both ends.

[0047] In the above example, by installing the worm gear 3 and the worm 5 in the first body 181 and the second body 182 respectively, it is not only beneficial to assemble the worm gear 3 and the worm 5, but also allows the first body 181 and the second body 182 to independently limit the worm gear 3 and the worm 5 during rotation, so that the worm gear 3 and the worm 5 can rotate well and have good stability.

[0048] In some embodiments of this utility model, as shown in Figures 1-7, an internal thread is provided at the opening 7, and the rotating assembly also includes a connecting pipe 9. The end of the connecting pipe 9 has an external thread, and the end of the connecting pipe 9 is threadedly engaged at the opening 7. The connecting rod 13 is movably inserted through the connecting pipe 9.

[0049] In other words, the connecting tube 9 is fixedly connected to the second body 182 through a threaded connection, which has good stability. After installation, the connecting tube 9 can effectively restrict the position of the connecting rod 13, making the connecting rod 13 more stable during rotation and less prone to displacement. As a result, the connecting rod 13 can be better connected to the worm gear 5, which is beneficial to the transmission between the connecting rod 13 and the worm gear 5, thereby enabling the adjustable orthodontic mouth opener 100 to open the mouth more stably.

[0050] For example, the length of the connecting rod 13 is greater than the length of the connecting tube 9.

[0051] In some embodiments of this utility model, as shown in Figures 1-7, in a projection plane perpendicular to the first direction X, the projected shapes of the slide cylinder 11, the first channel, and the second channel are all polygons. The inner peripheral walls of the first channel and the second channel are constructed as rotation-limiting structures, and the outer peripheral wall of the slide cylinder 11 is fitted with the inner peripheral wall to limit the rotation of the slide cylinder 11.

[0052] As shown in Figures 1-7, the slide cylinder 11 is a rectangular cylindrical structure. That is, in the projection plane perpendicular to the first direction X, the projection shape of the slide cylinder 11 is rectangular. Similarly, the projection shapes of the first channel and the second channel are rectangular. When the threaded rod 4 rotates, the first channel and the second channel can effectively restrict the rotation of the slide cylinder 11, thereby enabling the slide cylinder 11 to move well along the first channel or the second channel, resulting in good stability.

[0053] In some embodiments of this utility model, as shown in Figures 1-7, the adjustable orthodontic mouth opener 100 further includes baffles 16. Two baffles 16 are provided, and the two baffles 16 are symmetrically installed on both sides of the mounting base 1 in the second direction Y. Both baffles 16 are constructed as arc-shaped structures with the middle part protruding in the direction away from the mounting base 1.

[0054] For example, when the adjustable orthodontic mouth opener 100 opens the mouth through the slide 11 and the U-shaped top frame 12, one of the two baffles 16 can prevent the tongue from touching the device, and the other baffle 16 can block the inner wall of the mouth outward, giving the doctor room for treatment.

[0055] In some embodiments of this utility model, one end of the baffle 16 is connected to the end of the first tube 19 away from the main body 18, and the other end is connected to the end of the second tube 20 away from the second tube 20.

[0056] In other words, when the adjustable orthodontic mouth opener 100 opens the mouth through the slide tube 11 and the U-shaped top frame 12, the shape of the baffle 16 will not change, thus making it less likely for the baffle 16 to cause damage to the patient's mouth.

[0057] In some embodiments of this utility model, as shown in Figures 1-7, a handle 14 is provided at the end of the connecting rod 13 away from the transmission assembly.

[0058] In other words, the doctor can drive the connecting rod 13 through the handle 14, thereby better gripping the connecting rod 13, which is beneficial for the doctor's operation and has good stability.

[0059] In one example, as shown in Figures 1-7, the end of the connecting rod 13 has a plug 15, and the worm gear 5 is provided with a slot 8 that mates with the plug 15. In the projection plane perpendicular to the axis of the connecting rod 13, the projection shape of the plug 15 is a polygon, and similarly, the projection shape of the slot 8 is also a corresponding polygon, for example, the projection shape of the plug 15 is a pentagon, and the projection shape of the slot 8 is a pentagon. Thus, after the connecting rod 13 is connected to the worm gear 5 through the engagement of the plug 15 and the slot 8, the connecting rod 13 can effectively drive the worm gear 5 to rotate, thereby driving the slide cylinder 11 and the U-shaped top bracket 12 to move through the worm wheel 3 and the threaded rod 4, so that the two U-shaped top brackets 12 move away from each other to open the patient's oral cavity, thus facilitating the doctor's treatment.

[0060] For example, as shown in Figures 1-7, a rotating shaft 6 is provided at one axial end of the worm gear 5, and a slot 8 is provided on the end face of the rotating shaft 6.

[0061] In some embodiments of this utility model, the body 18 is a one-piece molded part. Furthermore, the mounting base 1 is a one-piece molded part. The one-piece molded structure provides good structural strength.

[0062] In some embodiments of this utility model, as shown in Figures 1-7, the adjustable orthodontic mouth opener 100 also includes a pad 17. Two pads 17 are provided, and the two pads 17 are respectively installed in the U-shaped grooves of the two U-shaped top frames 12.

[0063] For example, the pad 17 is made of materials such as sponge or rubber. When the doctor opens the patient's mouth with the adjustable orthodontic mouth opener 100, the sponge or rubber can deform well, thereby making better contact with the teeth, reducing damage to the teeth, and also helping to improve the stability of the adjustable orthodontic mouth opener 100 during use.

[0064] The following describes the usage process of the adjustable orthodontic mouth opener 100 of this utility model with reference to Figures 1-7.

[0065] When using the adjustable orthodontic mouth opener 100, the connecting tube 9 is installed on the mounting base 1 by means of threaded connection. At this time, the mounting base 1 and the sliding component 2 installed on the mounting base 1 can be inserted into the oral cavity between the upper and lower teeth by holding the connecting tube 9. Then, the connecting rod 13 is inserted into the connecting tube 9, and the insert 15 at the end of the connecting rod 13 is inserted into the slot 8 of the worm 5. The rotating handle 14 is rotated, thereby driving the worm 5 to rotate. The worm 5 drives the worm wheel 3 to rotate synchronously. The worm wheel 3 drives the two threaded rods 4 to rotate in the two slide cylinders 11 respectively. The two slide cylinders 11 can move in a direction away from each other, and drive the two U-shaped top frames 12 to open the upper and lower teeth, thereby opening the patient's oral cavity. During this process, the pad 17 can reduce damage to the upper and lower teeth.

[0066] Then, pull out the connecting rod 13 from the connecting tube 9, and then separate the connecting tube 9 from the mounting base 1, so that the doctor can better treat the patient's oral cavity. The operation is simple and convenient.

[0067] When it is necessary to remove the mounting base 1 and the sliding component 2 mounted on the mounting base 1 from the oral cavity, the above operation process is repeated. The difference is that the two straws should rotate in opposite directions, so as to release the opening effect of the adjustable orthodontic mouth opener 100 on the oral cavity. This application will not elaborate on this.

[0068] Other configurations and operations of the adjustable orthodontic mouth opener 100 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0069] In the description of this specification, references to terms such as "some embodiments," "optionally," "furthermore," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0070] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An adjustable orthodontic mouth opener (100), characterized in that, include: Mounting base (1), the mounting base (1) includes a body (18) and a first tube (19) and a second tube (20) symmetrically arranged on both sides of the body (18) in a first direction (X). The body (18) is provided with a receiving cavity. The first tube (19) is provided with a first channel that penetrates the first tube (19) along the first direction (X). The second tube (20) is provided with a second channel that penetrates the second tube (20) along the first direction (X). The first channel and the second channel are both connected to the receiving cavity. Sliding assembly (2), the sliding assembly (2) includes a slide cylinder (11) and a U-shaped top frame (12). There are two sliding assemblies (2). The slide cylinders (11) of the two sliding assemblies (2) are slidably installed in the first channel and the second channel respectively along the first direction (X). The first channel and the second channel each have a limiting function for the slide cylinder (11). The rotating limiting structure has the end of the slide cylinder (11) away from the receiving cavity extending out of the first channel or the second channel. The U-shaped top frame (12) is installed on the end of the slide cylinder (11) away from the receiving cavity. The inner peripheral wall of the slide cylinder (11) is provided with internal threads. The rotating assembly includes a connecting rod (13), a transmission assembly and a threaded rod (4). There are two threaded rods (4). The two threaded rods (4) are threadedly engaged with the two slide cylinders (11) respectively. The transmission assembly is located in the receiving cavity and is connected to the threaded rod (4) in a transmission manner. The connecting rod (13) extends along the second direction (Y). The end of the connecting rod (13) is connected to the transmission assembly in a transmission manner. The first direction (X) and the second direction (Y) are perpendicular to each other. The mounting seat (1) is placed in the oral cavity. The end of the connecting rod (13) away from the transmission assembly is adapted to extend out of the oral cavity.

2. The adjustable orthodontic mouth opener (100) according to claim 1, characterized in that, The transmission assembly includes a worm gear (3) and a worm (5), both of which are located within the receiving cavity. The worm (5) is driven to one side of the third direction (Z) of the worm gear (3). The worm gear (3) is coaxially connected to the threaded rod (4). The two threaded rods (4) are located on both sides of the first direction (X) of the worm gear (3). The end of the connecting rod (13) is coaxially connected to the worm (5). The third direction (Z) is perpendicular to the first direction (X) and the second direction (Y) respectively.

3. The adjustable orthodontic mouth opener (100) according to claim 2, characterized in that, The body (18) includes a first body (181) and a second body (182) connected together. The second body (182) is connected to the first body (181) on one side of the third direction (Z). The first body (181) has a first receiving cavity, and the second body (182) has a second receiving cavity. The first receiving cavity and the second receiving cavity are connected to form the receiving cavity. The worm gear (3) is rotatably mounted in the first receiving cavity, and the worm (5) is rotatably mounted in the second receiving cavity. The second body (182) has an opening (7) on one side of the second direction (Y). The opening (7) is connected to the second receiving cavity. The connecting rod (13) extends into the second receiving cavity through the opening (7) and is connected to the worm (5).

4. The adjustable orthodontic mouth opener (100) according to claim 3, characterized in that, The opening (7) is provided with an internal thread, and the rotating assembly also includes a connecting pipe (9). The end of the connecting pipe (9) has an external thread, and the end of the connecting pipe (9) is threaded into the opening (7). The connecting rod (13) is movably inserted through the connecting pipe (9).

5. The adjustable orthodontic mouth opener (100) according to claim 1, characterized in that, In the projection plane perpendicular to the first direction (X), the projection shapes of the slide cylinder (11), the first channel and the second channel are all polygons. The inner peripheral walls of the first channel and the second channel are constructed as the rotation limiting structure. The outer peripheral wall of the slide cylinder (11) is attached to the inner peripheral wall to restrict the rotation of the slide cylinder (11).

6. The adjustable orthodontic mouth opener (100) according to claim 1, characterized in that, It also includes baffles (16), two of which are provided. The two baffles (16) are symmetrically installed on both sides of the mounting base (1) in the second direction (Y). Both baffles (16) are constructed as arcs with the middle part protruding in a direction away from the mounting base (1).

7. The adjustable orthodontic mouth opener (100) according to claim 6, characterized in that, One end of the baffle (16) is connected to the end of the first tube (19) away from the main body (18), and the other end is connected to the end of the second tube (20) away from the second tube (20).

8. The adjustable orthodontic mouth opener (100) according to claim 1, characterized in that, The end of the connecting rod (13) away from the transmission assembly is provided with a handle (14).

9. The adjustable orthodontic mouth opener (100) according to claim 1, characterized in that, The body (18) is a one-piece molded part.

10. The adjustable orthodontic mouth opener (100) according to claim 1, characterized in that, It also includes pads (17), two of which are provided, and the two pads (17) are respectively installed in the U-shaped grooves of the two U-shaped top frames (12).

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