Oral cavity opening device

Abstract

The invention relates to the technical field of oral cavity opening, and discloses an oral cavity opening device which comprises a fixing mechanism, the fixing mechanism comprises a back plate and a headrest, the headrest is installed on the back plate, two sets of adjusting mechanisms are installed on the back plate, and two sets of lip opening mechanisms which are symmetrically arranged up and down are installed on each set of adjusting mechanism; through the arranged lip opening mechanism and an arc-shaped track of an adjusting rail, a cushion block A and a cushion block B clamp and turn lips, the upper lip is turned upwards, the lower lip is turned downwards, two sets of four turning assemblies completely open the lips, the mouth can be completely opened conveniently, obstruction of the lips to oral cavity operation is reduced, and the mouth opening effect is improved. And finally, a fixing nut is screwed on the connecting rod to be attached to the adjusting rail, so that the position of the connecting rod is fixed, the position of the turning assembly is kept fixed, then the lips are kept to be turned open, operation is easy, and the device can be used according to the shape and size of the mouth and the specific conditions of the lips before use.

Description

Technical Field

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

[0002] The mouth opener is a first aid tool commonly used in internal medicine emergencies, and it also facilitates observation and inspection of the oral cavity.

[0003] The existing oral opening device only opens the patient's mouth, and the lips are still likely to hinder medical staff from observing and operating. Medical staff are required to assist in turning the lips open, and then conduct targeted observation and surgery on the area under the lips. Turning the lips open is not convenient to operate and is difficult to maintain, which affects observation and surgical operations.

[0004] In order to solve the above problems, this application proposes an oral opening device. Summary of the invention

[0005] The object of the present invention is to provide a mouth opening device to solve the problem in the prior art mentioned in the above background technology that it is inconvenient to operate and difficult to maintain the lips.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An oral opening device comprises a fixing mechanism, wherein the fixing mechanism comprises a back plate and a headrest, the headrest is mounted on the back plate, two sets of adjustment mechanisms are mounted on the back plate, and each set of adjustment mechanisms is mounted with two sets of lip opening mechanisms which are symmetrically arranged in an upper and lower manner;

[0008] The adjustment mechanism comprises a loose adjustment component and a far-near adjustment component, the loose adjustment component is mounted on the back plate, and the far-near adjustment component is mounted on the loose adjustment component;

[0009] The lip-opening mechanism comprises a mounting frame, an adjusting rail, a positioning assembly and a flipping assembly; the mounting frame is mounted on the distance adjusting assembly, the adjusting rail is mounted on the mounting frame, the positioning assembly is mounted on the adjusting rail, and the flipping assembly is mounted on the positioning assembly.

[0010] Furthermore, the loose adjustment component includes a threaded rod, a sliding rod and an adjustment block, and adjustment grooves are provided at both the front and rear ends of the back plate, the inner side wall of the adjustment groove is rotatably connected to the threaded rod through a rotating shaft, the inner side wall of the adjustment groove is fixedly connected to the sliding rod, and the inner side wall of the adjustment groove is slidably connected to the adjustment block, the outer side of the threaded rod is threadedly connected to the adjustment block, the threaded rod passes through the surface of the adjustment block, the outer side of the sliding rod is slidably connected to the adjustment block, the sliding rod passes through the surface of the adjustment block, and the end of the threaded rod away from the back plate is provided with a handle for easy rotation.

[0011] Furthermore, the distance adjustment assembly includes a sleeve, a sleeve rod and a fixing bolt, the right end of the adjustment block is fixedly connected to the sleeve, the sleeve rod is slidably connected to the inner side of the sleeve, the other end of the sleeve rod is fixedly connected to the mounting frame, the fixing bolt is threadedly connected to the inner side of the sleeve, the movement trajectory of the fixing bolt is linear, and the sleeve is arranged on the movement trajectory of the fixing bolt.

[0012] Furthermore, the positioning assembly includes a connecting rod, a reinforcement block, a chuck, a clamping wheel, a fixed block, a limit block and a fixing nut. A connecting groove is provided on the adjusting rail, the connecting rod is slidably connected to the inner wall of the connecting groove, the reinforcement block is slidably connected to the outer side of the connecting rod, the front end face of the reinforcement block is fixedly connected to the chuck, the outer side of the connecting rod is slidably connected to the clamping wheel, the outer side of the chuck is threadedly connected to two of the fixing blocks, the reinforcement block is arranged between the two fixing blocks, a sliding groove is provided on the outer side of the connecting rod, the limit block is slidably connected to the inner side of the sliding groove, the inner side of the clamping wheel is fixedly connected to the limit block, and the fixing nut is threadedly connected to the outer side of the connecting rod.

[0013] Furthermore, a clamping groove is provided on the inner side of the chuck, the movement track of the clamping wheel is linear, and the clamping groove of the chuck is arranged on the movement track of the clamping wheel.

[0014] Furthermore, the flipping assembly includes a clamping block, an adjusting sleeve A, a puncture block A, a cushion block A, an adjusting sleeve B, a puncture block B and a cushion block B, the clamping block is fixedly connected to the inner side of the reinforcement block, the connecting rod passes through the surface of the clamping block, the outer side of the connecting rod is slidably connected to the clamping block, the clamping block is arranged in a "U" shape, the two ends of the clamping block are divided into a long end and a short end, the outer side of the short end of the clamping block is threadedly connected to the adjusting sleeve A, the top end of the adjusting sleeve A is rotatably connected to the puncture block A through a rotating shaft, the outer side of the puncture block A is frictionally connected to the cushion block A, the outer side of the long end of the clamping block is threadedly connected to the adjusting sleeve B, and the top end of the adjusting sleeve B is rotatably connected to the cushion block B through a rotating shaft.

[0015] Furthermore, the flip assembly also includes a slider, the inner side of the adjustment rail is slidably connected to the slider, the connecting rod passes through the surface of the slider, and the outer side of the connecting rod is slidably connected to the slider.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention provides a lip-opening mechanism and an arc-shaped track of the adjusting rail so that the pad A and the pad B clamp and flip the lips, so that the upper lip flips upward and the lower lip flips downward. The two groups of four flipping components completely flip the lips, which facilitates the complete opening of the mouth and reduces the hindrance of the lips to oral operations. Finally, the fixing nut is tightened on the connecting rod to fit with the adjusting rail, thereby fixing the position of the connecting rod, thereby keeping the position of the flipping component fixed, and then keeping the lips flipped. The operation is simple and can be adjusted according to the shape and size of the mouth and the specific situation of the lips before use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an oral opening device of the present invention;

[0019] Figure 2 It is a schematic diagram of the installation structure of an adjustment mechanism of an oral opening device of the present invention;

[0020] Figure 3 A side cross-sectional view of the mounting structure of a loose adjustment component of an oral opening device of the present invention;

[0021] Figure 4 This is a schematic diagram of the installation structure of a slide bar of an oral opening device of the present invention;

[0022] Figure 5 This is a schematic diagram of the installation structure of a fixing bolt of an oral opening device of the present invention;

[0023] Figure 6 This is a schematic diagram of the installation structure of a lip opening mechanism of an oral opening device of the present invention;

[0024] Figure 7 This is a schematic diagram of the installation structure of a positioning assembly of an oral opening device of the present invention;

[0025] Figure 8 A side view of the mounting structure of a fixed block of an oral opening device of the present invention;

[0026] Fig. 9 A side view of the installation structure of a limit block of an oral opening device of the present invention;

[0027] Fig.10 It is a schematic diagram of the installation structure of a flip assembly of an oral opening device of the present invention;

[0028] Fig.11 A structural stereogram of an adjustment rail of an oral opening device of the present invention;

[0029] In the figure:

[0030] 1. Fixing mechanism; 11. Backboard; 12. Headrest;

[0031] 2. Adjustment mechanism; 21. Loose adjustment assembly; 211. Threaded rod; 212. Sliding rod; 213. Adjustment block; 22. Distance adjustment assembly; 221. Sleeve; 222. Sleeve rod; 223. Fixing bolt;

[0032] 3. Lip-opening mechanism; 31. Mounting frame; 32. Adjusting rail; 33. Positioning assembly; 331. Connecting rod; 332. Reinforcing block; 333. Chuck; 334. Chuck wheel; 335. Fixing block; 336. Limiting block; 337. Fixing nut; 34. Flipping assembly; 341. Clamping block; 342. Adjusting sleeve A; 343. Piercing block A; 344. Cushion block A; 345. Adjusting sleeve B; 346. Piercing block B; 347. Cushion block B; 348. Slider. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] The standard parts used in this application can all be purchased from the market, and special-shaped parts can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the existing technology, and the components used for circuit connection are all conventional models in the existing technology.

[0035] At the same time, in order to clearly express the connection relationship and working principle between the components and highlight the key points, the drawings in the specification are organized and drawn in the form of simple diagrams. One simple diagram can correspond to a variety of materials and actual external structural shapes.

[0036] See also Figure 1-Figure 11 The present invention provides a technical solution: an oral opening device, comprising a fixing mechanism 1, the fixing mechanism 1 comprising a back plate 11 and a headrest 12, the headrest 12 is mounted on the back plate 11, two sets of adjustment mechanisms 2 are mounted on the back plate 11, and each set of adjustment mechanisms 2 is mounted with two sets of lip opening mechanisms 3 which are symmetrically arranged in an upper and lower direction;

[0037] The adjustment mechanism 2 includes a loose adjustment component 21 and a far-near adjustment component 22. The loose adjustment component 21 is installed on the back plate 11, and the far-near adjustment component 22 is installed on the loose adjustment component 21.

[0038] The lip flipping mechanism 3 includes a mounting frame 31, an adjusting rail 32, a positioning assembly 33 and a flipping assembly 34. The mounting frame 31 is installed on the distance adjustment assembly 22, the adjusting rail 32 is installed on the mounting frame 31, the positioning assembly 33 is installed on the adjusting rail 32, and the flipping assembly 34 is installed on the positioning assembly 33. When in use, the device keeps the patient's mouth open through an opener such as a dental brace. The back plate 11 is placed and fixed on the functional chair, and then the headrest rests on the headrest 12. The lip flipping mechanism 3 is made to fit the patient's mouth more closely through the loose adjustment assembly 21. The forward rotating threaded rod 211 makes the two adjustment blocks 213 move away from each other first, so that the patient can lie down conveniently, and then the reverse rotating threaded rod 211 makes the two adjustment blocks 213 move closer to each other, so that the lip flipping mechanism 3 is close to the patient's mouth, and then the lips are flipped open through the lip flipping mechanism 3, so as to facilitate the complete opening of the mouth and reduce the hindrance of the lips to oral operations.

[0039] The loose adjustment component 21 includes a threaded rod 211, a slide rod 212 and an adjustment block 213. The back plate 11 is provided with an adjustment groove at both ends. The inner side wall of the adjustment groove is rotatably connected to the threaded rod 211 through a rotating shaft. The inner side wall of the adjustment groove is fixedly connected to the slide rod 212. The inner side wall of the adjustment groove is slidably connected to the adjustment block 213. The outer side of the threaded rod 211 is threadedly connected to the adjustment block 213. The threaded rod 211 passes through the surface of the adjustment block 213. The outer side of the slide rod 212 is slidably connected to the adjustment block 213. The slide rod 212 passes through the surface of the adjustment block 213. The end of the threaded rod 211 away from the back plate 11 is provided with a convenient rotation The handle of the backboard 11 is placed and fixed on the functional chair, and then the head pillow rests on the head pillow 12. The adjusting block 213 is driven to slide in the backboard 11 by rotating the threaded rod 211. The adjusting block 213 slides on the sliding rod 212, and the sliding rod 212 limits the adjusting block 213, thereby adjusting the positions of the two adjusting blocks 213 so that the lip opening mechanism 3 is closer to and fits the patient's mouth. The forward rotation of the threaded rod 211 makes the two adjusting blocks 213 move away from each other first, so that the patient can lie down conveniently, and then the reverse rotation of the threaded rod 211 makes the two adjusting blocks 213 move closer to each other, so that the lip opening mechanism 3 is close to the patient's mouth.

[0040] The distance adjustment component 22 includes a sleeve 221, a sleeve rod 222 and a fixing bolt 223. The right end of the adjustment block 213 is fixedly connected to the sleeve 221, and the sleeve rod 222 is slidably connected to the inner side of the sleeve 221. The other end of the sleeve rod 222 is fixedly connected to the mounting frame 31. The inner side of the sleeve 221 is threadedly connected to the fixing bolt 223. The movement trajectory of the fixing bolt 223 is linear. The sleeve 221 is arranged on the movement trajectory of the fixing bolt 223. Then, by rotating the fixing bolt 223 on the sleeve 221, the fixing bolt 223 is driven to separate from the sleeve rod 222. Then, the sleeve rod 222 is slid in the sleeve 221 so that the sleeve rod 222 drives the lip opening mechanism 3 to adjust the displacement to the left and right.

[0041] The positioning assembly 33 includes a connecting rod 331, a reinforcement block 332, a chuck 333, a clamping wheel 334, a fixed block 335, a limit block 336 and a fixing nut 337. A connecting groove is provided on the adjusting rail 32, and the inner side wall of the connecting groove is slidably connected to the connecting rod 331, and the outer side of the connecting rod 331 is slidably connected to the reinforcement block 332, and the front end surface of the reinforcement block 332 is fixedly connected to the chuck 333, and the outer side of the connecting rod 331 is slidably connected to the clamping wheel 334, and the outer side of the chuck 333 is threadedly connected to two fixed blocks 335, and the reinforcement block 332 is arranged between the two fixed blocks 335. A sliding groove is provided on the outer side of the connecting rod 331, and the inner side of the sliding groove is slidably connected to the limit block 336, and the inner side of the clamping wheel 334 is fixedly connected to the limit block 336, and the outer side of the connecting rod 331 is threadedly connected to the fixed The fixed nut 337 and the inner side of the chuck 333 are provided with a slot, the movement trajectory of the clamping wheel 334 is linear, and the slot of the chuck 333 is set on the movement trajectory of the clamping wheel 334. The clamping wheel 334 is slid on the connecting rod 331 through the limit block 336, and the reinforcement block 332 is slid on the connecting rod 331 and the reinforcement block 332 is rotated to drive the clamping block 341 to rotate, and the position and angle suitable for the lips are adjusted, and then the fixed block 335 is spirally rotated on the connecting rod 331, and the two fixed blocks 335 clamp the reinforcement block 332, and one of the fixed blocks 335 pushes the clamping wheel 334 to insert into the slot of the chuck 333, thereby limiting the angle of the reinforcement block 332, thereby fixing the angle of the clamping block 341, and then the lips are clamped between the pad A344 and the pad B347.

[0042] The flip assembly 34 includes a clamping block 341, an adjusting sleeve A342, a puncture block A343, a cushion block A344, an adjusting sleeve B345, a puncture block B346 and a cushion block B347. The inner side of the reinforcement block 332 is fixedly connected with the clamping block 341. The connecting rod 331 passes through the surface of the clamping block 341. The outer side of the connecting rod 331 is slidably connected with the clamping block 341. The clamping block 341 is arranged in a "U" shape. The two ends of the clamping block 341 are divided into a long end and a short end. The outer side of the short end of the clamping block 341 is threadedly connected with the adjusting sleeve A342. The top end of the adjusting sleeve A342 is rotatably connected with the puncture block A343 through a rotating shaft. The outer side of the puncture block A343 is frictionally connected with a pad A344, the outer side of the long end of the clamping block 341 is threadedly connected with an adjustment sleeve B345, and the top of the adjustment sleeve B345 is rotatably connected with a pad B347 through a rotating shaft. The flip assembly 34 also includes a slider 348, and the inner side of the adjustment rail 32 is slidably connected with the slider 348. The connecting rod 331 passes through the surface of the slider 348, and the outer side of the connecting rod 331 is slidably connected with the slider 348. When in use, the pad A344 is inserted and fixed on the puncture block A343, and the pad B347 is inserted and fixed on the puncture block B346, thereby reinforcing the reinforcement block 3 The angle of the clamp block 341 is limited by the adjusting rail 32, thereby fixing the angle of the clamp block 341, and then the lips are clamped between the pad A 344 and the pad B 347. The elastic force of the clamp block 341 itself clamps the lips. Then, the slider 348 slides in the adjusting rail 32 to drive the connecting rod 331 to move. The connecting rod 331 drives the clamp block 341 to move. The arc track of the adjusting rail 32 causes the pad A 344 and the pad B 347 to clamp and flip the lips, so that the upper lip flips upward and the lower lip flips downward. The two groups of four flipping components 34 completely flip the lips, which is convenient for the complete opening of the mouth and reduces the lips to The operation of the mouth is obstructed, and finally the fixing nut 337 is tightened on the connecting rod 331 to fit with the adjusting rail 32, so as to fix the position of the connecting rod 331, thereby keeping the position of the flip assembly 34 fixed, and then keeping the lips flipped open. The operation is simple, and before use, the adjusting sleeve A342 and the adjusting sleeve B345 can be rotated on the clamping block 341 to adjust the relative distance of the pad A344 and the pad B347 extending out of the clamping block 341 according to the shape and size of the mouth and the specific situation of the lips, so that the pad A344 and the pad B347 can better clamp the lips.

[0043] Working principle:

[0044] When the device is in use, the patient's mouth is kept open by an opener such as a dental brace, and then the head pillow is placed on the head pillow 12, and the adjusting block 213 is driven to slide in the back plate 11 by rotating the threaded rod 211, and the adjusting block 213 slides on the sliding rod 212, and the sliding rod 212 limits the adjusting block 213, thereby adjusting the positions of the two adjusting blocks 213 so that the lip opening mechanism 3 is closer to and fits the patient's mouth. The threaded rod 211 is rotated forward so that the two adjusting blocks 213 are first moved away from each other to facilitate the patient to lie down, and then the threaded rod 211 is reversed so that the two adjusting blocks 213 are moved closer to each other, so that the lip opening mechanism 3 is close to the patient's mouth, and then the fixing bolt 223 is rotated on the sleeve 221 to drive the fixing bolt 223 to separate from the sleeve rod 222, and then the sleeve 22 The sliding sleeve rod 222 in 1 enables the sleeve rod 222 to drive the lip opening mechanism 3 to adjust the displacement to the left and right. When in use, the pad A344 is inserted and fixed on the puncture block A343, and the pad B347 is inserted and fixed on the puncture block B346. Then, the clamping wheel 334 is slid on the connecting rod 331 through the limit block 336, and the reinforcement block 332 is slid on the connecting rod 331 and the reinforcement block 332 is rotated to drive the clamping block 341 to rotate, and the position and angle suitable for the lips are adjusted. Then, the fixing block 335 is spirally rotated on the connecting rod 331, and the two fixing blocks 335 clamp the reinforcement block 332, and one of the fixing blocks 335 pushes the clamping wheel 334 to be inserted into the clamping slot of the chuck 333, thereby limiting the angle of the reinforcement block 332, thereby fixing the angle of the clamping block 341.

[0045] After being fixed, the lips are clamped between the pad A344 and the pad B347, and the elastic force of the clamp 341 itself clamps the lips, and then the slider 348 slides in the adjustment rail 32 to drive the connecting rod 331 to move, and the connecting rod 331 drives the clamp 341 to move, and the arc track of the adjustment rail 32 makes the pad A344 and the pad B347 clamp the lips and flip them, so that the upper lip flips upward and the lower lip flips downward, and the two groups of four flipping components 34 completely flip the lips, which is convenient for the complete opening of the mouth and reduces the hindrance of the lips to the oral operation. Then, tighten the fixing nut 337 on the connecting rod 331 to fit it with the adjusting rail 32, thereby fixing the position of the connecting rod 331, thereby keeping the position of the flip assembly 34 fixed, and then keeping the lips flipped open. The operation is simple, and before use, the adjustment sleeve A342 and the adjustment sleeve B345 can be rotated on the clamp block 341 to adjust the relative distance of the pad A344 and the pad B347 extending out of the clamp block 341 according to the shape and size of the mouth and the specific situation of the lips, so that the pad A344 and the pad B347 can better clamp the lips.

[0046] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. An oral opening device, characterized in that: The invention comprises a fixing mechanism (1), wherein the fixing mechanism (1) comprises a back plate (11) and a headrest (12), wherein the headrest (12) is mounted on the back plate (11), and two groups of adjustment mechanisms (2) are mounted on the back plate (11), and each group of the adjustment mechanisms (2) is mounted with two groups of lip opening mechanisms (3) arranged symmetrically in an upper and lower direction. The adjustment mechanism (2) comprises a loose adjustment component (21) and a distance adjustment component (22); the loose adjustment component (21) is mounted on the back plate (11), and the distance adjustment component (22) is mounted on the loose adjustment component (21); The lip opening mechanism (3) comprises a mounting frame (31), an adjustment rail (32), a positioning assembly (33) and a flipping assembly (34); the mounting frame (31) is mounted on the distance adjustment assembly (22); the adjustment rail (32) is mounted on the mounting frame (31); the positioning assembly (33) is mounted on the adjustment rail (32); and the flipping assembly (34) is mounted on the positioning assembly (33).

2. The oral opening device according to claim 1, characterized in that: The loose adjustment component (21) comprises a threaded rod (211), a sliding rod (212) and an adjustment block (213); the back plate (11) is provided with an adjustment groove at both the front and rear ends; the inner side wall of the adjustment groove is rotatably connected to the threaded rod (211) via a rotating shaft; the inner side wall of the adjustment groove is fixedly connected to the sliding rod (212); the inner side wall of the adjustment groove is slidably connected to the adjustment block (213); the outer side of the threaded rod (211) is threadedly connected to the adjustment block (213); the threaded rod (211) passes through the surface of the adjustment block (213); the outer side of the sliding rod (212) is slidably connected to the adjustment block (213); the sliding rod (212) passes through the surface of the adjustment block (213); and the end of the threaded rod (211) away from the back plate (11) is provided with a handle for easy rotation.

3. The oral opening device according to claim 2, characterized in that: The distance adjustment component (22) comprises a sleeve (221), a sleeve rod (222) and a fixing bolt (223); the right end of the adjustment block (213) is fixedly connected to the sleeve (221); the sleeve rod (222) is slidably connected to the inner side of the sleeve (221); the other end of the sleeve rod (222) is fixedly connected to the mounting frame (31); the inner side of the sleeve (221) is threadedly connected to the fixing bolt (223); the movement trajectory of the fixing bolt (223) is linear, and the sleeve (221) is arranged on the movement trajectory of the fixing bolt (223).

4. The oral opening device according to claim 3, characterized in that: The positioning assembly (33) includes a connecting rod (331), a reinforcing block (332), a chuck (333), a clamping wheel (334), a fixing block (335), a limiting block (336) and a fixing nut (337). A connecting groove is provided on the adjusting rail (32). The inner side wall of the connecting groove is slidably connected to the connecting rod (331). The outer side of the connecting rod (331) is slidably connected to the reinforcing block (332). The front end surface of the reinforcing block (332) is fixedly connected to the chuck (333). The outer side of the rod (331) is slidably connected to the clamping wheel (334), the outer side of the chuck (333) is threadedly connected to the two fixing blocks (335), the reinforcing block (332) is arranged between the two fixing blocks (335), the outer side of the connecting rod (331) is provided with a sliding groove, the inner side of the sliding groove is slidably connected to the limiting block (336), the inner side of the clamping wheel (334) is fixedly connected to the limiting block (336), and the outer side of the connecting rod (331) is threadedly connected to the fixing nut (337).

5. The oral opening device according to claim 4, characterized in that: A clamping groove is provided on the inner side of the chuck (333), the movement track of the clamping wheel (334) is linear, and the clamping groove of the chuck (333) is arranged on the movement track of the clamping wheel (334).

6. The oral cavity opening device according to claim 5, characterized in that: The flip assembly (34) includes a clamping block (341), an adjusting sleeve A (342), a puncture block A (343), a cushion block A (344), an adjusting sleeve B (345), a puncture block B (346) and a cushion block B (347). The inner side of the reinforcing block (332) is fixedly connected to the clamping block (341). The connecting rod (331) passes through the surface of the clamping block (341). The outer side of the connecting rod (331) is slidably connected to the clamping block (341). The clamping block (341) is arranged in a "U" shape. The two ends of the clamping block (341) are divided into a long end and a short end. The outer side of the short end of the clamping block (341) is threadedly connected to the adjusting sleeve A (342). The top end of the adjusting sleeve A (342) is rotatably connected to the puncture block A (343) via a rotating shaft. The outer side of the puncture block A (343) is frictionally connected to the pad A (344). The outer side of the long end of the clamping block (341) is threadedly connected to the adjusting sleeve B (345). The top end of the adjusting sleeve B (345) is rotatably connected to the pad B (347) via a rotating shaft.

7. The oral opening device according to claim 6, characterized in that: The flip assembly (34) further includes a slider (348), the inner side of the adjustment rail (32) is slidably connected to the slider (348), the connecting rod (331) passes through the surface of the slider (348), and the outer side of the connecting rod (331) is slidably connected to the slider (348).

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