Oral opening device

Abstract

The present invention relates to the field of medical technology, and discloses an oral opening device, including a lower connecting arm, an upper connecting arm is arranged on the upper outer surface of the lower connecting arm, a rotating column is arranged between the lower connecting arm and the upper connecting arm, a magnet block is arranged inside the rotating column, a solid rivet is arranged on the front outer surface of the lower connecting arm, a lower extension arm is arranged at one end of the lower connecting arm, a silicone sleeve is arranged at one end of the upper extension arm, a supporting device is arranged on the lower outer surface of the upper connecting arm, and a supporting plate is arranged on the upper outer surface of the lower connecting arm near the bottom of the supporting device. This oral opening device can be adjusted in size according to the patient's incisor spacing, and the silicone sleeve can be flexibly replaced. The spacing between the upper handle and the lower handle can be flexibly adjusted. It is more convenient to store and easy to disassemble for cleaning, which brings better prospects for use.

Description

Technical Field

[0001] The invention relates to the field of medical technology, in particular to an oral cavity opening device. Background Art

[0002] Patients with nasopharyngeal carcinoma who receive radiotherapy usually have difficulty opening their mouths. In medical treatment, it is usually necessary to use a bottle stopper to support the mouth. However, since the diameter of the bottle stopper is fixed and cannot be changed, patients with small incisor distance have the embarrassment of not being able to insert the bottle stopper. When the incisor distance becomes larger, the bottle stopper is too small to be used, which brings certain inconveniences to the patient's recovery process. Secondly, when the doctor holds an oral opening device, the distance between the upper handle and the lower handle cannot be adjusted, and it cannot be flexibly adapted to doctors with different hand sizes. In addition, when the device is placed after use, the entire oral opening device is in an open state, which brings inconvenience to the storage of the device. Finally, the disassembly of the entire device is relatively inconvenient, which is not conducive to the careful cleaning of the entire device and has an adverse effect on the hygiene of the device. For this reason, we propose an oral opening device. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the present invention provides an oral dilator, the size of which can be adjusted according to the distance between the patient's incisors, the silicone sleeve can be flexibly replaced, the distance between the upper handle and the lower handle can be flexibly adjusted, the storage is convenient, and the device can be easily disassembled for cleaning. This solves the problem that the traditional oral dilator cannot be adjusted according to the distance between the patient's incisors, the distance between the upper handle and the lower handle cannot be flexibly adjusted, which is not conducive to storage and detailed cleaning.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose of being able to adjust the size according to the patient's incisor distance and the silicone sleeve being replaceable according to the incisor teeth and the alveolar socket, the spacing between the upper handle and the lower handle being flexibly adjusted, being convenient to store, and being easy to disassemble and clean, the present invention provides the following technical solutions: an oral opening device, comprising a lower connecting arm, an upper connecting arm being arranged on the upper end outer surface of the lower connecting arm, a rotating column being arranged between the lower connecting arm and the upper connecting arm, a magnet block being arranged inside the rotating column, a solid rivet being arranged on the front end outer surface of the lower connecting arm, and a A lower extension arm is provided, one end of the lower extension arm is provided with a silicone sleeve, the lower end outer surface of the upper connecting arm is provided with a supporting device, the upper end outer surface of the lower connecting arm is provided with a supporting plate below the supporting device, the other end of the lower connecting arm is provided with a lower handle relative to one end of the lower extension arm, an adjustment plate is provided between the lower connecting arm and the lower handle, a pressing plate is provided on the outer surface of the lower handle, an inner connecting plate is provided at one end of the lower handle, the upper end outer surface of the inner connecting plate is provided with an embedding protrusion, and the inner outer surface of the adjustment plate is provided with an embedding opening.

[0007] Preferably, the rotating column passes through the interior of the upper connecting arm and the lower connecting arm, and the rotating column and the upper connecting arm and the lower connecting arm are movably connected. A limiting gasket is provided on the outer surface of the rotating column near the upper connecting arm and the lower connecting arm, and the limiting gasket and the rotating column are fixedly connected, and the limiting gasket and the upper connecting arm and the lower connecting arm are movably connected.

[0008] Preferably, the solid rivet passes through the interior of the rotating column, and the solid rivet and the rotating column are movably connected. One end of the solid rivet is in contact with the magnet block, and the solid rivet and the magnet block are movably connected. The magnet block and the rotating column are fixedly connected. The number of the solid rivets is two groups, and the solid rivets are symmetrically arranged on the outer surfaces of the lower connecting arm and the upper connecting arm.

[0009] Preferably, the supporting device includes a storage tank, which is embedded in the inner side of the upper connecting arm, and a supporting rod is provided on the inner outer surface of the storage tank, and a connecting shaft is provided between one end of the supporting rod and the inner outer surface of the storage tank, and the connecting shaft passes through the interior of the supporting rod, and the connecting shaft and the storage tank are fixedly connected, and the support rod and the storage tank are movably connected via the connecting shaft, and a buckle is provided on the other end of the supporting rod, and the buckle is embedded in the inner side of the storage tank.

[0010] Preferably, the support plate is embedded in the upper outer surface of the lower connecting arm, the support plate and the lower connecting arm are movably connected, the upper outer surface of the support plate is provided with a support groove, the lower outer surface of the support plate is provided with an elastic pad, the elastic pad and the support plate are fixedly connected, and the lower outer surface of the elastic pad and the inner side of the lower connecting arm are fixedly connected.

[0011] Preferably, an upper extension arm is provided at one end of the upper connecting arm, and the number of the silicone sleeves is two groups. A card slot is provided on the inner side of the silicone sleeve, and the silicone sleeve is sleeved on one end of the upper extension arm and the lower extension arm through the card slot. The upper extension arm and the lower extension arm are similar in size and shape. An upper handle is provided at the other end of the upper connecting arm relative to one end of the upper extension arm, and the connection method between the upper handle and the upper connecting arm is similar to the connection method between the lower handle and the lower connecting arm.

[0012] Preferably, a movable shaft is provided between the pressing plate and the lower handle, a movable cavity is provided below the lower handle, the movable shaft passes through the interior of the pressing plate and the inner side of the movable cavity, the pressing plate and the movable cavity are movably connected via the movable shaft, a compression spring is provided on the outer surface of the lower end of the inner connecting plate, and the upper and lower ends of the compression spring are fixedly connected to the inner connecting plate and the movable cavity respectively.

[0013] Preferably, the number of the embedding openings is several groups, the embedding openings are arranged in an array, the embedding protrusions are movably connected to the embedding openings, the number of the embedding protrusions is two groups, the embedding protrusions are symmetrically arranged on the front and rear outer surfaces of the lower handle, the embedding protrusions penetrate the outer surface of the lower handle, the embedding protrusions are movably connected to the lower handle, and the lower end of the embedded protrusion is fixedly connected to the inner connecting plate.

[0014] Preferably, the adjustment plate and the lower connecting arm are fixedly connected, one end of the lower handle is located on the inner side of the adjustment plate, a limiting snap-in is provided on the outer surface of the lower handle near the edge of the adjustment plate, and the lower handle and the adjustment plate are movably connected via the limiting snap-in.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present invention provides an oral opening device having the following beneficial effects:

[0017] 1. This oral opening device, through the action of the lower insertion arm and the upper insertion arm, cooperates with the upper grip and the lower grip, by holding the upper grip and the lower grip, and then simultaneously inserting the lower insertion arm and the upper insertion arm into the patient's oral cavity, ensures that the silicone sleeve is located between the patient's incisors. The type of silicone sleeve can be flexibly replaced according to the alveolar and incisors. Then, the upper grip and the lower grip are tightly grasped. Under the action of the rotating column, according to the principle of the lever, the lower insertion arm and the upper insertion arm can open the space between the incisors, thereby opening the oral cavity. The silicone sleeve prevents damage to the patient's incisors and can be adjusted in size according to the patient's incisor distance, which is beneficial to the patient's treatment process.

[0018] 2. This oral opening device, through the action of the adjustment plate, the lower handle and the upper handle, after pressing the pressing plate, the pressing plate rotates along the movable axis, the movable cavity provides a movable space for the pressing plate, drives the inner connecting plate and the embedded protrusion to move downward together, so that the embedded protrusion is separated from the embedded opening, and then the lower handle or the upper handle is moved up and down to adjust the distance between the upper handle and the lower handle. At the same time, the limit stopper prevents the upper handle and the lower handle from being separated from the adjustment plate during the adjustment process. After the adjustment, the pressing plate is released, and under the elastic force of the compression spring, the position of the inner connecting plate and the embedded protrusion is restored, and the embedded protrusion is re-embedded in the embedded opening to fix the position of the upper handle or the lower handle, which has the function of flexibly adjusting the distance between the upper handle and the lower handle.

[0019] 3. The oral cavity stretching device, through the action of the support device and the support plate, rotates the support rod along the connecting axis so that the support rod is taken out from the inner side of the storage groove, and then makes one end of the support rod contact with the support plate and embedded in the support groove, so that the upper connecting arm and the lower connecting arm are mutually stretched, and then the lower connecting arm and one end of the upper connecting arm are mutually fitted, so that the whole device is folded up, and when it is used again, the support plate is pressed to compress the elastic cushion, and the support rod is separated from the support groove, so that it can be used, which is conducive to the storage of an oral cavity stretching device.

[0020] 4. This oral opening device, through the action of solid rivets and magnet blocks, when the entire device needs to be disassembled, the two groups of solid rivets are pulled outward. When the external force is greater than the adsorption effect of the magnet block on the solid rivets, the solid rivets can be pulled out, and then the upper connecting arm and the lower connecting arm can be separated, and the rotating column can be taken out at the same time. Then, the various components of the device can be cleaned. It has the function of easy disassembly and is conducive to detailed cleaning of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2It is a front side sectional view of the structure of the present invention;

[0023] Figure 3 The structure of the present invention Figure 2 A magnified view of middle;

[0024] Figure 4 The structure of the present invention Figure 2 Enlarged view of middle B;

[0025] Figure 5 It is a top cross-sectional view of the structural adjustment plate of the present invention;

[0026] Figure 6 It is a cross-sectional view of the upper connecting arm and the lower connecting arm of the structure of the present invention;

[0027] Figure 7 A schematic diagram of replacing the silicone sleeve of the structure of the present invention.

[0028] In the figure: 1. lower connecting arm; 2. upper connecting arm; 3. solid rivet; 4. rotating column; 5. magnet block; 6. limiting gasket; 7. lower extension arm; 8. upper extension arm; 9. silicone sleeve; 10. supporting device; 101. storage tank; 102. supporting rod; 103. connecting shaft; 104. buckle; 11. supporting plate; 12. supporting groove; 13. elastic cushion; 14. lower handle; 15. upper handle; 16. adjusting plate; 17. pressing plate; 18. movable shaft; 19. movable cavity; 20. inner connecting plate; 21. compression spring; 22. embedding protrusion; 23. embedding opening; 24. limiting snap-on. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-6A mouth opening device comprises a lower connecting arm 1, an upper connecting arm 2 is arranged on the upper outer surface of the lower connecting arm 1, a rotating column 4 is arranged between the lower connecting arm 1 and the upper connecting arm 2, a magnet block 5 is arranged inside the rotating column 4, a solid rivet 3 is arranged on the front outer surface of the lower connecting arm 1, a lower extension arm 7 is arranged at one end of the lower connecting arm 1, a silicone sleeve 9 is arranged at one end of the lower extension arm 7, a supporting device 10 is arranged on the lower outer surface of the upper connecting arm 2, and the lower connecting arm A support plate 11 is provided on the outer surface of the upper end of the lower connecting arm 1 near the lower side of the supporting device 10, a lower handle 14 is provided at the other end of the lower connecting arm 1 relative to one end of the lower extending arm 7, an adjusting plate 16 is provided between the lower connecting arm 1 and the lower handle 14, a pressing plate 17 is provided on the outer surface of the lower handle 14, an inner connecting plate 20 is provided at one end of the lower handle 14, an embedding protrusion 22 is provided on the outer surface of the upper end of the inner connecting plate 20, and an embedding opening 23 is provided on the inner outer surface of the adjusting plate 16.

[0031] The rotating column 4 runs through the interior of the upper connecting arm 2 and the lower connecting arm 1, and the rotating column 4 is movably connected to the upper connecting arm 2 and the lower connecting arm 1. A limiting gasket 6 is arranged on the outer surface of the rotating column 4 near the upper connecting arm 2 and the lower connecting arm 1, and the limiting gasket 6 is fixedly connected to the rotating column 4, and the limiting gasket 6 is movably connected to the upper connecting arm 2 and the lower connecting arm 1, ensuring that the upper connecting arm 2 and the lower connecting arm 1 can rotate; the solid rivet 3 runs through the interior of the rotating column 4, and the solid rivet 3 is movably connected to the rotating column 4, one end of the solid rivet 3 is in contact with the magnet block 5, the solid rivet 3 is movably connected to the magnet block 5, the magnet block 5 is fixedly connected to the rotating column 4, and the number of solid rivets 3 There are two groups of solid rivets 3, which are symmetrically arranged on the outer surfaces of the lower connecting arm 1 and the upper connecting arm 2 to ensure that the upper connecting arm 2 and the lower connecting arm 1 will not separate from the rotating column 4; the supporting device 10 includes a storage tank 101, which is embedded in the inner side of the upper connecting arm 2, and a support rod 102 is provided on the inner outer surface of the storage tank 101. A connecting shaft 103 is provided between one end of the support rod 102 and the inner outer surface of the storage tank 101, and the connecting shaft 103 runs through the inside of the support rod 102. The connecting shaft 103 and the storage tank 101 are fixedly connected, and the support rod 102 and the storage tank 101 are movably connected through the connecting shaft 103. A buckle 104 is provided on the other end of the support rod 102, and the buckle 104 is embedded in the inner side of the storage tank 101 , the buckle 104 prevents the support rod 102 from falling; the support plate 11 is embedded in the upper outer surface of the lower connecting arm 1, and the support plate 11 and the lower connecting arm 1 are movably connected. The upper outer surface of the support plate 11 is provided with a support groove 12, and the lower outer surface of the support plate 11 is provided with an elastic pad 13. The elastic pad 13 and the support plate 11 are fixedly connected, and the lower outer surface of the elastic pad 13 and the inner side of the lower connecting arm 1 are fixedly connected. The elastic pad 13 ensures that the support plate 11 can be pressed down; an upper extension arm 8 is provided at one end of the upper connecting arm 2, and the number of silicone sleeves 9 is two groups. A card slot is provided on the inner side of the silicone sleeve 9, and the silicone sleeve 9 is sleeved on one end of the upper extension arm 8 and the lower extension arm 7 through the card slot. The upper extension arm 8 and the lower extension arm 7 The size and shape of the upper connecting arm 2 are similar. An upper handle 15 is provided at the other end of the upper connecting arm 2 relative to one end of the upper extending arm 8. The connection method between the upper handle 15 and the upper connecting arm 2 is similar to the connection method between the lower handle 14 and the lower connecting arm 1. A movable shaft 18 is provided between the pressing plate 17 and the lower handle 14. A movable cavity 19 is provided below the lower handle 14. The movable shaft 18 runs through the inside of the pressing plate 17 and the inner side of the movable cavity 19. The pressing plate 17 and the movable cavity 19 are movably connected through the movable shaft 18. A compression spring 21 is provided on the outer surface of the lower end of the inner connecting plate 20. The upper and lower ends of the compression spring 21 are fixedly connected to the inner connecting plate 20 and the movable cavity 19 respectively, so as to ensure that the pressing plate 17 can move.The number of the embedded openings 23 is several groups, and the embedded openings 23 are arranged in an array. The embedded protrusions 22 are movably connected to the embedded openings 23. The number of embedded protrusions 22 is two groups. The embedded protrusions 22 are symmetrically arranged on the front and rear outer surfaces of the lower handle 14. The embedded protrusions 22 penetrate the outer surface of the lower handle 14. The embedded protrusions 22 are movably connected to the lower handle 14. The lower end of the embedded protrusion 22 is fixedly connected to the inner connecting plate 20 to ensure that the inner connecting plate 20 can drive the embedded protrusions 22 to move; the adjustment plate 16 is fixedly connected to the lower connecting arm 1, one end of the lower handle 14 is located on the inner side of the adjustment plate 16, and a limited bayonet 24 is provided on the outer surface of the lower handle 14 near the edge of the adjustment plate 16. The lower handle 14 and the adjustment plate 16 are movably connected through the limited bayonet 24 to ensure that the position of the lower handle 14 can be adjusted. ;

[0032] During operation, the user holds the upper handle 15 and the lower handle 14, and then extends the lower insertion arm 7 and the upper insertion arm 8 into the patient's oral cavity at the same time to ensure that the silicone sleeve 9 is located between the patient's incisors. Then, the upper handle 15 and the lower handle 14 are tightly gripped. Under the action of the rotating column 4, according to the principle of lever, the lower insertion arm 7 and the upper insertion arm 8 can stretch the space between the incisors, thereby stretching the oral cavity. The silicone sleeve 9 prevents damage to the patient's incisors and can be replaced according to the patient's incisor distance and alveolar adjustment, which is beneficial to the patient's treatment process. After the user presses the pressing plate 17, the pressing plate 17 rotates along the movable shaft 18, driving the inner connecting plate 20 and the embedded protrusion 22 to move downward together, so that the embedded protrusion 22 disengages from the embedded opening 23, and the user then moves the lower handle 14 or the upper handle 15 up and down to adjust the upper handle 14 and the lower After adjusting the spacing between the upper and lower handles 15, the user releases the pressing plate 17 to fix the position of the upper handle 14 or the lower handle 15. After the user is finished, the user rotates the support rod 102 along the connecting shaft 103 to make the support rod 102 taken out from the inner side of the storage tank 101, and then makes one end of the support rod 102 contact the support plate 11 and embed it in the support groove 12 to retract the entire device. When using it again, press the support plate 11 to compress the elastic cushion 13, and the support rod 102 is disengaged from the support groove 12, so that it can be used, and then the oral opening device can be stored. When the entire device needs to be disassembled and cleaned, the user pulls out the two sets of solid rivets 3 outward to separate the upper connecting arm 2 from the lower connecting arm 1, and takes out the rotating column 4 at the same time, and then the various components of the device can be cleaned, which is more practical.

[0033] To sum up, through the action of the lower insertion arm 7 and the upper insertion arm 8, in cooperation with the upper grip 15 and the lower grip 14, by holding the upper grip 15 and the lower grip 14, the lower insertion arm 7 and the upper insertion arm 8 are simultaneously inserted into the patient's oral cavity to ensure that the silicone sleeve 9 is located between the patient's incisors. The silicone sleeve 9 can be replaced as needed, and then the upper grip 15 and the lower grip 14 are tightly gripped. Under the action of the rotating column 4, according to the principle of lever, the lower insertion arm 7 and the upper insertion arm 8 can open the space between the incisors, thereby opening the oral cavity. The silicone sleeve 9 prevents damage to the patient's incisors and can be adjusted in size according to the patient's incisor distance, which is beneficial to the patient. Treatment process; through the action of the adjusting plate 16, the lower grip 14 and the upper grip 15, after pressing the pressing plate 17, the pressing plate 17 rotates along the movable shaft 18, and the movable cavity 19 provides a movable space for the pressing plate 17, driving the inner connecting plate 20 and the embedded protrusion 22 to move downward together, so that the embedded protrusion 22 is separated from the embedded opening 23, and then the lower grip 14 or the upper grip 15 is moved up and down to adjust the distance between the upper grip 14 and the lower grip 15. At the same time, the limit bayonet 24 prevents the upper grip 14 and the lower grip 15 from being separated from the adjusting plate 16 during the adjustment process. After the adjustment, the pressing plate 17 is released, and the compression spring 21 is released. Under the action of force, the positions of the inner connecting plate 20 and the embedded protrusion 22 are restored, and the embedded protrusion 22 is re-embedded in the embedding opening 23, fixing the position of the upper handle 14 or the lower handle 15, and having the function of flexibly adjusting the distance between the upper handle 14 and the lower handle 15; through the action of the supporting device 10 and the supporting plate 11, the supporting rod 102 is rotated along the connecting shaft 103, so that the supporting rod 102 is taken out from the inner side of the storage tank 101, and then one end of the supporting rod 102 is contacted with the supporting plate 11 and embedded in the supporting groove 12, so that the upper connecting arm 2 and the lower connecting arm 1 are mutually spread apart, thereby making the lower insertion arm 7 and the upper insertion arm 8 The ends fit together so that the entire device can be folded up. When it is used again, the support plate 11 is pressed to compress the elastic cushion 13, and the support rod 102 is separated from the support groove 12, so that it can be used, which is conducive to the storage of an oral opening device; through the action of the solid rivets 3 and the magnet block 5, when the entire device needs to be disassembled, the two groups of solid rivets 3 are pulled outward. When the external force is greater than the adsorption effect of the magnet block 5 on the solid rivets 3, the solid rivets 3 can be pulled out, and then the upper connecting arm 2 can be separated from the lower connecting arm 1, and the rotating column 4 can be taken out at the same time, and then the various components of the device can be cleaned. It has the function of easy disassembly, which is conducive to detailed cleaning of the device.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oral opening device, comprising a lower connecting arm (1), characterized in that: The upper end outer surface of the lower connecting arm (1) is provided with an upper connecting arm (2), a rotating column (4) is provided between the lower connecting arm (1) and the upper connecting arm (2), a magnet block (5) is provided inside the rotating column (4), a solid rivet (3) is provided on the front end outer surface of the lower connecting arm (1), a lower extension arm (7) is provided at one end of the lower connecting arm (1), a silicone sleeve (9) is provided at one end of the lower extension arm (7), a supporting device (10) is provided on the lower end outer surface of the upper connecting arm (2), and the upper end outer surface of the lower connecting arm (1) is provided with a support device (10). A support plate (11) is arranged below the support device (10); a lower handle (14) is arranged at the other end of the lower connecting arm (1) relative to one end of the lower extending arm (7); an adjustment plate (16) is arranged between the lower connecting arm (1) and the lower handle (14); a pressing plate (17) is arranged on the outer surface of the lower handle (14); an inner connecting plate (20) is arranged at one end of the lower handle (14); an embedding protrusion (22) is arranged on the upper outer surface of the inner connecting plate (20); and an embedding opening (23) is arranged on the inner outer surface of the adjustment plate (16); An upper insertion arm (8) is provided at one end of the upper connecting arm (2), and the number of the silicone sleeves (9) is two groups. A card slot is provided on the inner side of the silicone sleeve (9), and the silicone sleeve (9) is sleeved on one end of the upper insertion arm (8) and the lower insertion arm (7) through the card slot. The size and shape of the upper insertion arm (8) and the lower insertion arm (7) are similar. An upper handle (15) is provided at the other end of the upper connecting arm (2) relative to one end of the upper insertion arm (8), and the connection method between the upper handle (15) and the upper connecting arm (2) is similar to the connection method between the lower handle (14) and the lower connecting arm (1); A movable shaft (18) is provided between the pressing plate (17) and the lower handle (14); a movable cavity (19) is provided below the lower handle (14); the movable shaft (18) passes through the interior of the pressing plate (17) and the inner side of the movable cavity (19); the pressing plate (17) and the movable cavity (19) are movably connected via the movable shaft (18); a compression spring (21) is provided on the outer surface of the lower end of the inner connecting plate (20); the upper and lower ends of the compression spring (21) are fixedly connected to the inner connecting plate (20) and the movable cavity (19) respectively; The number of the embedding openings (23) is a plurality of groups, the embedding openings (23) are arranged in an array, the embedding protrusions (22) are movably connected to the embedding openings (23), the number of the embedding protrusions (22) is two groups, the embedding protrusions (22) are symmetrically arranged on the front and rear outer surfaces of the lower handle (14), the embedding protrusions (22) penetrate the outer surface of the lower handle (14), the embedding protrusions (22) are movably connected to the lower handle (14), and the lower end of the embedding protrusion (22) is fixedly connected to the inner connecting plate (20); The adjustment plate (16) and the lower connecting arm (1) are fixedly connected, one end of the lower handle (14) is located on the inner side of the adjustment plate (16), a limit snap-in (24) is provided on the outer surface of the lower handle (14) near the edge of the adjustment plate (16), and the lower handle (14) and the adjustment plate (16) are movably connected via the limit snap-in (24).

2. The oral cavity opening device according to claim 1, characterized in that: The rotating column (4) passes through the interior of the upper connecting arm (2) and the lower connecting arm (1); the rotating column (4) is movably connected to the upper connecting arm (2) and the lower connecting arm (1); a limiting gasket (6) is provided on the outer surface of the rotating column (4) near the upper connecting arm (2) and the lower connecting arm (1); the limiting gasket (6) and the rotating column (4) are fixedly connected; the limiting gasket (6) and the upper connecting arm (2) and the lower connecting arm (1) are movably connected.

3. The oral cavity opening device according to claim 1, characterized in that: The solid rivet (3) passes through the interior of the rotating column (4), and the solid rivet (3) and the rotating column (4) are movably connected. One end of the solid rivet (3) is in contact with the magnet block (5), and the solid rivet (3) and the magnet block (5) are movably connected. The magnet block (5) and the rotating column (4) are fixedly connected. The solid rivets (3) are in two groups, and are symmetrically arranged on the outer surfaces of the lower connecting arm (1) and the upper connecting arm (2).

4. The oral cavity opening device according to claim 1, characterized in that: The support device (10) comprises a storage tank (101), wherein the storage tank (101) is embedded in the inner side of the upper connecting arm (2), a support rod (102) is provided on the inner outer surface of the storage tank (101), a connecting shaft (103) is provided between one end of the support rod (102) and the inner outer surface of the storage tank (101), the connecting shaft (103) passes through the inside of the support rod (102), the connecting shaft (103) and the storage tank (101) are fixedly connected, the support rod (102) and the storage tank (101) are movably connected via the connecting shaft (103), and a buckle (104) is provided on the other end of the support rod (102), and the buckle (104) is embedded in the inner side of the storage tank (101).

5. The oral cavity opening device according to claim 1, characterized in that: The support plate (11) is embedded in the upper outer surface of the lower connecting arm (1); the support plate (11) and the lower connecting arm (1) are movably connected; the upper outer surface of the support plate (11) is provided with a support groove (12); the lower outer surface of the support plate (11) is provided with an elastic pad (13); the elastic pad (13) and the support plate (11) are fixedly connected; the lower outer surface of the elastic pad (13) and the inner side of the lower connecting arm (1) are fixedly connected.

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