Oral cavity interior observation equipment for orthodontic correction

Abstract

The invention belongs to the technical field of orthodontics, and particularly relates to oral cavity interior observation equipment for orthodontic correction, which comprises a shell, a lantern ring is rotatably connected to the shell, a support plate is fixedly connected to one side of the lantern ring, and a tongue depressor is rotatably connected to the lower support plate; the shooting mechanism is rotationally connected to one end of the shell and used for shooting the interior of the oral cavity; the adjusting mechanism is connected to the interior of the shell in a sliding manner; the demisting mechanism comprises an internal gas generating part arranged in the shell, and a heating part is arranged at one end of the gas generating part and used for heating the entering air; and the fixing mechanism comprises a gas transmission part arranged at one end of the shell and a locking part arranged in the shell. According to the invention, efficient and accurate observation of the interior of the oral cavity can be realized, the requirements of cleanliness and demisting in the use process are met, and the safety and comfort of a patient are ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of oral orthodontics, and in particular relates to an intra-oral observation device for oral orthodontic correction. Background Art

[0002] Orthodontics generally refers to tooth correction, which usually refers to the treatment process of correcting uneven tooth alignment, abnormal tooth shape, and abnormal tooth color through oral technical means. There are many methods of tooth correction, such as resin veneers, porcelain veneers, porcelain teeth, orthodontics, etc. The treatment method should be selected based on the actual situation of the individual's teeth, the type of malocclusion, etc., and then comprehensively considered personal requirements.

[0003] During the process of orthodontic treatment, the patient's oral cavity needs to be carefully examined in all aspects, and an oral cavity observation device is required in this process. For example, an easy-to-use oral observation instrument with application number: CN202321260967.4 is provided with a servo drive motor and a belt. The servo drive motor drives the rotating disk to move the belt. The movement of the belt drives the camera housing to rotate by friction, changing the direction of the camera housing, thereby facilitating the change of the camera angle and facilitating a comprehensive observation and diagnosis of the inside of the oral cavity.

[0004] However, in actual applications, the adjustment accuracy of the camera housing rotation mechanism that relies on belt friction is often not ideal. Although this rotation method that relies on physical friction can provide certain conveniences in some cases, it has obvious limitations in terms of precise control. Due to the instability of friction, the camera housing may move unevenly during rotation, which in turn affects the accuracy and stability of the shooting angle. In addition, after long-term use, the belt may lose its original friction due to wear, which will further reduce the adjustment accuracy and may even cause the device to malfunction. Moreover, when the camera housing is inserted deep into the oral cavity, it is easily contaminated by saliva, which will have a negative impact on the clarity of the shot. When cleaning is required, the camera must be removed from the oral cavity. During the cleaning process, the camera is in contact with the outside air and is prone to absorbing particles in the air. In addition, if the patient has a retching reaction, the tongue will naturally curl up. If the camera continues to be operated at this time, it will not only aggravate the patient's retching feeling and reduce his comfort, but also in the process of the motor forcibly driving the camera housing to rotate, the patient's tongue in the retching state may come into contact with the camera housing, causing damage to the tongue tissue during the rotation process. Summary of the invention

[0005] The purpose of the present invention is to provide an intra-oral observation device for orthodontic correction, which can achieve efficient and accurate observation of the inside of the oral cavity, while meeting the cleanliness and defogging requirements during use and ensuring the safety and comfort of the patient.

[0006] The technical solution adopted by the present invention is as follows: An intraoral observation device for orthodontic correction comprises a housing, a collar is rotatably connected to the housing, a support plate is fixedly connected to one side of the collar, and a tongue depressor is rotatably connected to the support plate below; A photographing mechanism, which is rotatably connected to one end of the housing and is used to photograph the interior of the oral cavity; An adjusting mechanism, the adjusting mechanism is slidably connected inside the housing and is used to adjust a shooting angle of the shooting mechanism; A defogger mechanism, the defogger mechanism comprising an internal gas producing portion disposed in the housing, one end of the gas producing portion being provided with a heating portion for heating the incoming air; The fixing mechanism comprises an air delivery part arranged at one end of the shell, and a locking part arranged inside the shell.

[0007] In a preferred embodiment, the shooting mechanism includes an arc-shaped slide groove, which is opened on the inner wall of the shell, and a slider is slidably connected inside the arc-shaped slide groove. Both ends of the slider are fixedly connected with metal springs, and the other end of the metal spring is fixedly connected to the inner wall of the arc-shaped slide groove. A protective cover is fixedly connected to the slider, and a mounting block is fixedly connected inside the protective cover, and a camera and a lighting lamp are installed on the mounting block in an array.

[0008] In a preferred embodiment, the adjustment mechanism includes a guide block, which is fixedly connected to the inner wall of the shell, and a moving rod is slidably connected to the guide block. One end of the moving rod is fixedly connected to a handle, and the shell is also provided with a guide groove for the handle to slide. The other end of the moving rod is fixedly connected to a traction rope, and the other end of the traction rope is connected to a protective cover. A ring is fixedly connected to the outer wall of the moving rod, and first compression springs are fixedly connected to both sides of the ring, and the other end of the first compression spring is fixedly connected to the guide block, and a locking groove is provided on the bottom surface of the moving rod.

[0009] In a preferred embodiment, the gas producing part includes a first hollow cylinder, which is fixedly connected to the inside of the outer shell, and has air holes distributed in a ring shape on the first hollow cylinder. A movable rod is inserted into one end of the first hollow cylinder, and one end of the movable rod is fixedly connected to a first piston plate, and the other end of the movable rod is fixedly connected to a force block, one side of the first piston plate is fixedly connected to a second compression spring, and the other end of the second compression spring is fixedly connected to the inner wall of the first hollow cylinder, and one end of the first hollow cylinder is fixedly connected to an air supply pipe.

[0010] In a preferred embodiment, the heating part includes a copper tube, which is fixedly connected to the gas pipe, and a heat-conducting column is fixedly connected to the copper tube. A heat-absorbing block is fixedly embedded on the outer surface of the shell, and the heat-conducting column is fixedly connected to the heat-absorbing block. An absorbent cotton board is fixedly connected to the inner wall of the copper tube, and the other end of the copper tube is fixedly connected to the gas pipe, and the other end of the gas pipe is connected to the shooting mechanism.

[0011] In a preferred embodiment, the gas delivery part includes an annular gas storage groove, which is opened on the outer surface of the outer shell, and an annular sealing cover is rotatably connected to the outer side of the annular gas storage groove. A spring air bag is installed on the support plate below using a support plate, and a first air inlet pipe is connected to the spring air bag, and the other end of the first air inlet pipe is connected to the annular sealing cover.

[0012] In a preferred embodiment, the locking part includes a second hollow cylinder, which is fixedly connected to the bottom surface of the inner cavity of the outer shell, and a second air inlet pipe is connected to the second hollow cylinder, and the other end of the second air inlet pipe is connected to the annular air storage groove, and a lifting rod is inserted into the upper end of the second hollow cylinder, one end of the lifting rod is fixedly connected to the second piston plate, and the other end of the lifting rod is fixedly connected to a locking member, and the outer sleeve of the lifting rod is provided with a third compression spring.

[0013] In a preferred embodiment, the locking device includes a fixed seat, which is fixedly connected to the lifting rod, and two locking blocks are slidably connected inside the fixed seat. A fourth compression spring is fixedly connected to one side of the locking block, and the other end of the fourth compression spring is fixedly connected to the inner wall of the fixed seat, and a tension spring is also fixedly connected between the two locking blocks.

[0014] In a preferred embodiment, the lighting lamps are arranged in a ring array around the camera.

[0015] The technical effects achieved by the present invention are: The present invention adopts a mechanical traction rope combined with a compression spring design to replace the traditional method of relying on belt friction to drive the camera rotation. This method not only avoids the problem of uneven movement caused by the instability of physical friction, but also enables more accurate and stable shooting angle adjustment. Doctors can flexibly control the angle of the camera according to actual needs to ensure a comprehensive and detailed observation of the internal structure of the oral cavity, thereby improving the accuracy of diagnosis. In addition, this design also solves the risk of equipment failure caused by belt wear in traditional methods, thereby extending the service life of the equipment; The present invention introduces an automatic defog function, uses hot air to remove the fog in the protective cover, and absorbs moisture in the air through the absorbent cotton board to ensure that the gas entering the protective cover is dry, thereby effectively preventing the blurry shooting phenomenon caused by fogging on the surface of the protective cover. At the same time, during the rotation of the protective cover, its outer surface will contact the end of the outer shell to scrape off saliva, achieve an automatic cleaning effect, and further improve the image quality. This not only helps to keep the equipment hygienic, but also reduces the problem of external pollution affecting the clarity of shooting, allowing doctors to obtain clearer and more accurate internal oral imaging data; The present invention has a unique locking mechanism. When the patient has a retching reaction, the tongue naturally pushes up against the tongue depressor to compress the air in the spring airbag, triggering the lock to snap into the lock slot at the lower end of the moving rod, limiting the rotation of the shooting mechanism, and avoiding the patient's discomfort or damage to the tongue tissue caused by continued operation of the camera. This safety mechanism can significantly improve the patient's comfort and sense of security during the examination without affecting normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a right side view of the present invention as a whole; Figure 3 is a top sectional view of the present invention; Figure 4 It is a schematic diagram of the connection between the spring airbag and the annular sealing cover of the present invention; Figure 5 is a side sectional view of the present invention; Figure 6 It is a structural schematic diagram of the locking portion of the present invention; Figure 7 It is a structural schematic diagram of the regulating mechanism of the present invention; Figure 8 It is a structural schematic diagram of the demisting mechanism of the present invention; Fig. 9 is a cross-sectional view of the protective cover of the present invention; Fig.10 It is a partial structural schematic diagram of the housing of the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Shell; 2. Ring; 3. Support plate; 4. Shooting mechanism; 5. Tongue depressor; 6. Adjusting mechanism; 7. Defogging mechanism; 71. Gas generating unit; 72. Heating unit; 8. Fixing mechanism; 81. Gas transmission unit; 82. Locking unit; 401, arc-shaped slide; 402, slider; 403, metal spring; 404, protective cover; 405, mounting block; 406, camera; 407, lighting lamp; 601, guide block; 602, moving rod; 603, handle; 604, traction rope; 605, ring; 606, first compression spring; 607, locking groove; 711, first hollow cylinder; 712, air hole; 713, movable rod; 714, first piston plate; 715, second compression spring; 716, force bearing block; 717, air pipe; 721, copper tube; 722, heat-conducting column; 723, heat-absorbing block; 724, water-absorbing cotton board; 725, air guide tube; 811, annular air storage groove; 812, annular sealing cover; 813, spring airbag; 814, first air inlet pipe; 821, second hollow cylinder; 822, second air inlet pipe; 823, lifting rod; 824, second piston plate; 825, third compression spring; 826, locking element; 8261. Fixed seat; 8262. Locking block; 8263. Fourth compression spring; 8264. Tension spring. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0021] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0022] Please see attached Figure 1 , Figure 2 , Figure 3 and Figure 8As shown, this embodiment provides an intraoral observation device for oral orthodontic correction, comprising a housing 1, a collar 2 is rotatably connected to the housing 1, a support plate 3 is fixedly connected to one side of the collar 2, and a tongue depressor 5 is rotatably connected to the lower support plate 3; A photographing mechanism 4 is rotatably connected to one end of the housing 1 and is used to photograph the interior of the oral cavity; An adjusting mechanism 6, which is slidably connected to the inside of the housing 1 and is used to adjust the shooting angle of the shooting mechanism 4; The defogger 7 includes an internal gas producing portion 71 disposed in the housing 1, and a heating portion 72 is disposed at one end of the gas producing portion 71 for heating the incoming air; The fixing mechanism 8 includes an air delivery portion 81 disposed at one end of the housing 1 , and a locking portion 82 disposed inside the housing 1 .

[0023] In this embodiment, the data cable is inserted into the right interface of the housing 1, and the other end is connected to an external device. The signal is transmitted through the data cable, and the internal condition of the oral cavity is displayed on the external device in real time.

[0024] When in use, the camera end of the housing 1 is placed in the oral cavity, the patient's teeth bite the support plate 3, the oral cavity is opened by the support plate 3, and the tongue depressor 5 presses the patient's tongue to facilitate observation of the internal conditions of the oral cavity.

[0025] It should be noted that the tongue depressor 5 is rotatably arranged on the support plate 3, and a torsion spring (not shown in the figure) is installed on the rotating shaft of the tongue depressor 5. The torsion spring enables the tongue depressor 5 to return to its original position after being turned over.

[0026] Next, please refer to Fig. 9 and Fig.10 The shooting mechanism 4 includes an arc-shaped slide groove 401, which is opened on the inner wall of the shell 1. A slider 402 is slidably connected inside the arc-shaped slide groove 401. Both ends of the slider 402 are fixedly connected with metal springs 403, and the other end of the metal spring 403 is fixedly connected to the inner wall of the arc-shaped slide groove 401. A protective cover 404 is fixedly connected to the slider 402. A mounting block 405 is fixedly connected inside the protective cover 404. Cameras 406 and lighting lamps 407 are installed on the mounting block 405 in an array.

[0027] In this embodiment, the camera 406 is used to photograph the internal conditions of the oral cavity, and the lighting lamp 407 provides the necessary light source to ensure the lighting effect; the lighting lamp 407 is arranged in a ring array around the camera 406 to ensure that the internal part of the oral cavity can be evenly illuminated. The camera 406 uses a high-definition micro lens, which can capture clear images, facilitating the doctor to make a detailed diagnosis.

[0028] Secondly, please also refer to Figure 3and Figure 7 The adjustment mechanism 6 includes a guide block 601, which is fixedly connected to the inner wall of the shell 1. The guide block 601 is slidably connected to a moving rod 602. One end of the moving rod 602 is fixedly connected to a handle 603, and the shell 1 is also provided with a guide groove for the handle 603 to slide. The other end of the moving rod 602 is fixedly connected to a traction rope 604, and the other end of the traction rope 604 is connected to the protective cover 404. A ring 605 is fixedly connected to the outer wall of the moving rod 602, and both sides of the ring 605 are fixedly connected to a first compression spring 606, and the other end of the first compression spring 606 is fixedly connected to the guide block 601. A locking groove 607 is provided on the bottom surface of the moving rod 602.

[0029] In this embodiment, when adjusting the angle of the camera 406, one of the handles 603 is hooked with a finger and moved to the right, driving the moving rod 602 and the traction rope 604 to move to the right, squeezing and stretching the first compression spring 606 thereon, causing the protective cover 404 to rotate, thereby adjusting the shooting angle; when the protective cover 404 rotates, the traction rope 604 pulls the other moving rod 602, squeezing and stretching the first compression spring 606 thereon; by selecting the handle 603 to be pulled, the rotation direction of the protective cover 404 is controlled (the protective cover 404 rotates to the side to which the handle 603 is pulled, and the shooting angle is adjusted); when the handle 603 is not pulled, the reset force of the first compression spring 606 resets the moving rod 602; The housing 1 is rotatably connected to the collar 2. After the patient bites the support plate 3, the collar 2 is fixed. The housing 1 can be rotated along the collar 2 to further adjust the shooting angle.

[0030] During the rotation of the protective cover 404, the slider 402 slides along the arc-shaped slide groove 401, squeezing the metal spring 403. When there is no traction, the metal spring 403 automatically resets the protective cover 404 to a neutral position. In addition, when the protective cover 404 rotates, it contacts the end of the housing 1, and the end of the housing 1 scrapes off the saliva adhering to the outer surface of the protective cover 404, achieving automatic cleaning, improving the transparency of the protective cover 404, and ensuring the shooting effect (the protective cover 404 is made of transparent material).

[0031] Next, please refer to Figure 3 and Figure 8 The gas producing part 71 includes a first hollow cylinder 711, which is fixedly connected to the inside of the shell 1. The first hollow cylinder 711 is provided with air holes 712 in a ring-shaped pattern. A movable rod 713 is inserted into one end of the first hollow cylinder 711, and one end of the movable rod 713 is fixedly connected to a first piston plate 714, and the other end of the movable rod 713 is fixedly connected to a force block 716. A second compression spring 715 is fixedly connected to one side of the first piston plate 714, and the other end of the second compression spring 715 is fixedly connected to the inner wall of the first hollow cylinder 711. One end of the first hollow cylinder 711 is fixedly connected to a gas pipe 717.

[0032] Please refer again Figure 1 and Figure 8 The heating part 72 includes a copper tube 721, which is fixedly connected to the gas pipe 717, and a heat-conducting column 722 is fixedly connected to the copper tube 721. A heat-absorbing block 723 is fixedly inlaid on the outer surface of the shell 1, and the heat-conducting column 722 is fixedly connected to the heat-absorbing block 723. An absorbent cotton board 724 is fixedly connected to the inner wall of the copper tube 721, and the other end of the copper tube 721 is fixedly connected to an air guide tube 725, and the other end of the air guide tube 725 is connected to the shooting mechanism 4 (the air guide tube 725 is a retractable hose).

[0033] In this embodiment, when the moving rod 602 is pulled, the other moving rod 602 moves in the opposite direction, and the moving rod 602 moving in the opposite direction pushes the force block 716 to move to the left. The force block 716 moves to the left and drives the movable rod 713 and the first piston plate 714 to move the compressed air along the first hollow cylinder 711 and squeeze the second compression spring 715. The compressed air enters the copper tube 721 through the air supply pipe 717, and pushes the preheated air in the copper tube 721 along the air guide pipe 725 into the protective cover 404, thereby removing the fog on the inner surface of the protective cover 404.

[0034] A water-absorbing cotton board 724 is provided inside the copper tube 721 to absorb moisture in the air and increase the dryness of the gas entering the protective cover 404.

[0035] If only hot air needs to be introduced into the protective cover 404, the handle 603 or both handles 603 are pulled to the left at the same time, so that the first piston plate 714 moves to the left to compress the air in the first hollow cylinder 711; when the force block 716 has no resistance, the restoring force of the second compression spring 715 causes the first piston plate 714 to automatically reset; in addition, the first hollow cylinder 711 is evenly distributed with air holes 712 to facilitate air circulation and exhaust and intake.

[0036] After the shooting end of the housing 1 is placed in the oral cavity, the heat absorbing block 723 absorbs the heat in the oral cavity and transfers it to the copper tube 721 through the heat conducting column 722, thereby preheating the air in the copper tube 721 for subsequent demisting work.

[0037] Please refer again Figure 3 and Figure 4 The gas delivery part 81 includes an annular gas storage groove 811, which is opened on the outer surface of the shell 1. The outer side of the annular gas storage groove 811 is rotatably connected with an annular sealing cover 812. A spring airbag 813 is installed on the lower support plate 3 using a support plate. The spring airbag 813 is connected to a first air inlet pipe 814, and the other end of the first air inlet pipe 814 is connected to the annular sealing cover 812.

[0038] In this embodiment, the annular sealing cover 812 is rotatably connected to the outer side of the annular gas storage groove 811, ensuring that the annular sealing cover 812 does not rotate with the rotation of the housing 1. In detail, the spring airbag 813 is fixedly connected to the support plate 3 through a support plate, and the support plate 3 cannot rotate once it is bitten by the patient. In addition, the first air inlet pipe 814 between the annular sealing cover 812 and the spring airbag 813 is made of a hard material. The pipe not only connects the two, but also plays a role in limiting the rotation of the annular sealing cover 812, thereby ensuring the stability of the gas delivery process.

[0039] Please refer again Figure 5 and Figure 6 The locking portion 82 includes a second hollow cylinder 821, which is fixedly connected to the bottom surface of the inner cavity of the outer shell 1. A second air inlet pipe 822 is connected to the second hollow cylinder 821, and the other end of the second air inlet pipe 822 is connected to the annular air storage groove 811. A lifting rod 823 is inserted at the upper end of the second hollow cylinder 821, and one end of the lifting rod 823 is fixedly connected to the second piston plate 824, and the other end of the lifting rod 823 is fixedly connected to the locking member 826. The outer sleeve of the lifting rod 823 is provided with a third compression spring 825.

[0040] In this embodiment, during the filming process, if the patient feels uncomfortable and retches, the tongue naturally pushes up against the tongue depressor 5, and the tongue depressor 5 compresses the air in the spring airbag 813. The compressed air enters the annular air storage groove 811 along the first air inlet pipe 814, and then enters the second hollow cylinder 821 along the second air inlet pipe 822, pushing the second piston plate 824 to move upward. The upward movement of the second piston plate 824 drives the lifting rod 823 and the locking member 826 to move upward, and the locking member 826 is stuck in the locking groove 607 at the lower end of the moving rod 602. At this time, the moving rod 602 cannot move, thereby preventing the rotation of the filming mechanism 4 and the friction with the tongue, which causes the retching to intensify, thereby improving the patient's comfort.

[0041] Please refer again Figure 6 The lock 826 includes a fixed seat 8261, which is fixedly connected to the lifting rod 823. Two locking blocks 8262 are slidably connected inside the fixed seat 8261. A fourth compression spring 8263 is fixedly connected to one side of the locking block 8262, and the other end of the fourth compression spring 8263 is fixedly connected to the inner wall of the fixed seat 8261. A tension spring 8264 is also fixedly connected between the two locking blocks 8262.

[0042] In this embodiment, the locking block 8262 on the locking member 826 can be slightly moved on the fixing seat 8261, so as to be inserted into the locking groove 607 when it is not aligned. The fourth compression spring 8263 and the tension spring 8264 are used to reset the locking block 8262. When the tongue of the patient does not lift the tongue depressor 5, the tongue depressor 5 is reset, the spring airbag 813 is not squeezed and restored to its original state, the air pressure in the second hollow cylinder 821 is reduced, and the second piston plate 824 is reset under the reset force of the third compression spring 825, the locking block 8262 is separated from the locking groove 607, and the moving rod 602 loses the limit and can move.

[0043] The working principle of the present invention is: Device placement and initial fixation: Support and opening: When the device is placed in the oral cavity, the patient bites the support plate 3 to open and stabilize the oral space, while the tongue depressor 5 uses the torsion spring characteristics installed thereon to press the tongue, ensuring that the interior of the oral cavity is fully exposed for easy observation.

[0044] Shooting preparation and angle adjustment: The photographing mechanism 4 includes a camera 406 and lighting lamps 407, wherein the lighting lamps 407 are arranged in a circular array around the camera 406 to ensure uniform illumination inside the oral cavity. The camera 406 uses a high-definition micro lens and can capture clear images.

[0045] Adjustment mechanism 6: To adjust the shooting angle, the doctor can pull the handle 603 to slide the moving rod 602 along the guide block 601, and then drive the protective cover 404 and the internal components to rotate through the traction rope 604. The first compression spring 606 provides a reset force, so that the protective cover 404 can automatically return to the neutral position in the absence of external force. In addition, the housing 1 can rotate relative to the collar 2, further increasing the possibility of angle adjustment.

[0046] Automatic cleaning and demisting mechanism: The demisting mechanism 7 is composed of a gas producing part 71 and a heating part 72. The gas producing part 71 includes a piston system, which compresses the air and sends it into the copper tube 721 through the air pipe 717 for preheating when the moving rod 602 moves in the reverse direction. The heating part 72 uses the heat absorbing block 723 to absorb the heat in the oral cavity and transfers it to the copper tube 721 through the heat conducting column 722 to preheat the air therein. Finally, the dry and warm air enters the protective cover 404 through the air pipe 725 to remove the mist that may be generated on its inner surface. The absorbent cotton board 724 in the copper tube 721 helps to increase the dryness of the gas.

[0047] Automatic cleaning: When the protective cover 404 rotates, it will contact the end of the housing 1, which will scrape off the saliva on the outer surface of the protective cover 404, thereby realizing the automatic cleaning function and maintaining transparency and shooting effect.

[0048] Safety locking function: The fixing mechanism 8 is designed to respond to the patient's physiological response. If the patient feels uncomfortable and retches, the tongue pushes against the tongue depressor 5, causing the air in the spring airbag 813 to be compressed and enter the second hollow cylinder 821 through the first air inlet pipe 814, the annular air storage groove 811 and the second air inlet pipe 822 in sequence. This will push the second piston plate 824 up, thereby driving the lock 826 to snap into the lock groove 607 at the bottom of the moving rod 602, limiting the rotation of the shooting mechanism 4 to prevent friction with the tongue from causing discomfort or injury.

[0049] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. An intraoral observation device for orthodontic treatment, characterized in that: It comprises a shell (1), a collar (2) being rotatably connected to the shell (1), a support plate (3) being fixedly connected to one side of the collar (2), and a tongue depressor (5) being rotatably connected to the support plate (3) below; A photographing mechanism (4), the photographing mechanism (4) being rotatably connected to one end of the housing (1) and being used for photographing the interior of the oral cavity; An adjusting mechanism (6), the adjusting mechanism (6) being slidably connected inside the housing (1) and being used to adjust the shooting angle of the shooting mechanism (4); A demisting mechanism (7), the demisting mechanism (7) comprising an internal gas producing portion (71) arranged on the housing (1), a heating portion (72) being arranged at one end of the gas producing portion (71) for heating incoming air; A fixing mechanism (8), the fixing mechanism (8) comprising an air delivery portion (81) arranged at one end of the housing (1), and a locking portion (82) arranged inside the housing (1).

2. The intraoral observation device for orthodontic correction according to claim 1, characterized in that: The photographing mechanism (4) comprises an arc-shaped slide groove (401), wherein the arc-shaped slide groove (401) is formed on the inner wall of the housing (1), a slider (402) is slidably connected to the interior of the arc-shaped slide groove (401), both ends of the slider (402) are fixedly connected to metal springs (403), and the other end of the metal spring (403) is fixedly connected to the inner wall of the arc-shaped slide groove (401), a protective cover (404) is fixedly connected to the slider (402), a mounting block (405) is fixedly connected to the interior of the protective cover (404), and a camera (406) and an illuminating lamp (407) are mounted on the mounting block (405) in an array arrangement.

3. The intraoral observation device for orthodontic correction according to claim 2, characterized in that: The adjustment mechanism (6) comprises a guide block (601), wherein the guide block (601) is fixedly connected to the inner wall of the outer shell (1), a moving rod (602) is slidably connected to the guide block (601), one end of the moving rod (602) is fixedly connected to a handle (603), and the outer shell (1) is also provided with a guide groove for the handle (603) to slide, the other end of the moving rod (602) is fixedly connected to a traction rope (604), and the other end of the traction rope (604) is connected to a protective cover (404), the outer wall of the moving rod (602) is fixedly connected to a circular ring (605), both sides of the circular ring (605) are fixedly connected to a first compression spring (606), and the other end of the first compression spring (606) is fixedly connected to the guide block (601), and a locking groove (607) is provided on the bottom surface of the moving rod (602).

4. The intraoral observation device for orthodontic correction according to claim 1, characterized in that: The gas producing part (71) comprises a first hollow cylinder (711), the first hollow cylinder (711) is fixedly connected to the inside of the shell (1), the first hollow cylinder (711) is provided with air holes (712) distributed in a ring shape, a movable rod (713) is inserted into one end of the first hollow cylinder (711), one end of the movable rod (713) is fixedly connected to a first piston plate (714), the other end of the movable rod (713) is fixedly connected to a force block (716), one side of the first piston plate (714) is fixedly connected to a second compression spring (715), and the other end of the second compression spring (715) is fixedly connected to the inner wall of the first hollow cylinder (711), and one end of the first hollow cylinder (711) is fixedly connected to a gas supply pipe (717).

5. The intra-oral observation device for orthodontic correction according to claim 4, characterized in that: The heating portion (72) comprises a copper tube (721), the copper tube (721) being fixedly connected to the gas delivery tube (717), a heat-conducting column (722) being fixedly connected to the copper tube (721), a heat-absorbing block (723) being fixedly inlaid on the outer surface of the housing (1), and the heat-conducting column (722) being fixedly connected to the heat-absorbing block (723), an absorbent cotton board (724) being fixedly connected to the inner wall of the copper tube (721), an air guide tube (725) being fixedly connected to the other end of the copper tube (721), and the other end of the air guide tube (725) being connected to the shooting mechanism (4).

6. The intraoral observation device for orthodontic correction according to claim 1, characterized in that: The gas delivery portion (81) comprises an annular gas storage groove (811), the annular gas storage groove (811) being disposed on the outer surface of the housing (1), an annular sealing cover (812) being rotatably connected to the outer side of the annular gas storage groove (811), a spring air bag (813) being mounted on the support plate (3) below by means of a support plate, the spring air bag (813) being connected to a first air inlet pipe (814), and the other end of the first air inlet pipe (814) being connected to the annular sealing cover (812).

7. The intraoral observation device for orthodontic correction according to claim 6, characterized in that: The locking portion (82) comprises a second hollow cylinder (821), the second hollow cylinder (821) being fixedly connected to the bottom surface of the inner cavity of the outer shell (1), the second hollow cylinder (821) being connected to a second air intake pipe (822), and the other end of the second air intake pipe (822) being connected to the annular air storage groove (811), a lifting rod (823) being inserted at the upper end of the second hollow cylinder (821), one end of the lifting rod (823) being fixedly connected to a second piston plate (824), the other end of the lifting rod (823) being fixedly connected to a locking member (826), and a third compression spring (825) being sleeved on the outside of the lifting rod (823).

8. The intra-oral observation device for orthodontic correction according to claim 7, characterized in that: The locking member (826) comprises a fixing seat (8261), wherein the fixing seat (8261) is fixedly connected to the lifting rod (823), wherein two locking blocks (8262) are slidably connected inside the fixing seat (8261), wherein a fourth compression spring (8263) is fixedly connected to one side of the locking block (8262), and the other end of the fourth compression spring (8263) is fixedly connected to the inner wall of the fixing seat (8261), and a tension spring (8264) is also fixedly connected between the two locking blocks (8262).

9. The intraoral observation device for orthodontic correction according to claim 2, characterized in that: The lighting lamps (407) are arranged in a circular array around the camera (406).

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