Oral cavity examination device

Abstract

The oral cavity examination device comprises a retraction assembly, the retraction assembly comprises a retraction outer square cylinder, a retraction inner square cylinder is fixedly connected to the left side face of the retraction outer square cylinder in an inserted mode, and retraction sliding holes are formed in the upper face and the lower face of the retraction inner square cylinder; the plug pin structure is limited through the limiting structure, so that the plug pin structure can limit the regulator, and then the moved-out measuring filler gauge is limited, so that a medical worker can use the measuring filler gauge to carry out detection operation, the measuring filler gauge is retracted by pressing the regulator again, and the measuring filler gauge is moved out through the deviation structure. The adjuster can drive the position selecting mechanism to move in the process of withdrawing the measuring filler gauge, the moving position selecting mechanism drives the pushing assembly to move, and the pushing assembly moves from the right side of one power base and aligns to the adjacent power base, so that the purpose of selecting the measuring filler gauge is achieved, the selecting mode is simple, convenient and rapid, and the working efficiency is improved. The operation is easy, and the practicability of the oral examination device is improved.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and more specifically, to an oral examination device. Background Technology

[0002] The oral cavity is the starting point of the digestive tract. It connects to the outside through the mouth fissure anteriorly and continues to the pharynx posteriorly via the pharyngeal isthmus. The oral cavity contains organs such as teeth and tongue. The anterior wall of the oral cavity is the lip, the lateral walls are the cheeks, the roof is the palate, and the floor consists of mucosa and muscle structures. The oral cavity is divided into the anterolateral oral vestibule and the posteromedial oral cavity by the upper and lower dental arches. When the upper and lower teeth are occlusal, the oral vestibule and the oral cavity proper communicate through the space behind the third molar. Clinically, when a patient has trismus, this passage can be used to insert an oral gag or intubation tube to administer medication or nutrients, while also preventing tongue biting. A tooth gap measuring ruler is used in oral care and treatment. This ruler is one of the instruments used to check the interdental spaces. When using it, the ruler is inserted into the interdental space and pulled back and forth. Slight resistance indicates that the gap value is close to the value marked on the ruler. If the resistance is too great or too little, the gap value is less than or greater than the value marked on the ruler.

[0003] Existing dental interparticle measuring rulers consist of stainless steel sheets of various thicknesses and rivets. These sheets are fixed together by rivets. During testing, the thinnest sheet is usually used first, and then other sizes of stainless steel sheets are gradually replaced to increase the thickness. However, the stainless steel sheets are very thin, and it is difficult to select the right size when all the sheets are stacked together. Moreover, the testing process relies too much on human touch and experience, resulting in a large measurement error. Therefore, there is an urgent need to design a dental examination device. Summary of the Invention

[0004] 1. Technical problems to be solved The existing dental examination gap measuring rulers are composed of stainless steel sheets of various thicknesses and rivets. These sheets are fixed together by rivets, and the thinnest sheet is usually used first during testing, with other sizes of stainless steel sheets being replaced one by one to gradually increase the thickness. However, the stainless steel sheets are very thin, and it is difficult to select the right size when all the sheets are stacked together. Moreover, the testing process relies too much on human touch and experience, resulting in large testing errors. The purpose of this invention is to provide a dental examination device that can effectively solve the problems mentioned in the background art.

[0005] 2. Technical Solution To solve the above problems, the present invention adopts the following technical solution.

[0006] An oral examination device includes a retractable assembly. The retractable assembly includes a retractable outer square tube, a retractable inner square tube fixedly inserted into the left side of the outer square tube, retractable sliding holes on both the upper and lower sides of the inner square tube, a retractable slide plate slidably inserted into the interior of the retractable sliding holes, a retractable spring fixedly connected to the right side of the retractable slide plate, a retractable force strip fixedly connected to the other end of the retractable spring, the retractable force strip being fixedly connected to the inner wall of the outer square tube, and one end of the retractable slide plate extending into the interior of the inner square tube and having a power base thereon. The power base includes a power slider, which is fixedly connected to the end of a retractable slide. The power slider is slidably inserted into the interior of the retractable inner square tube. A straightening plate located at the left end of the retractable inner square tube is fixedly connected to the inner wall of the retractable inner square tube. A straightening slit is provided on the straightening plate. A replacement assembly is provided at the left end of the retractable inner square tube. The replacement assembly includes a splicing flat tube, which is movably inserted into the left end of the retractable inner square tube. A measuring feeler gauge is slidably inserted inside the splicing flat tube. The right end of the measuring feeler gauge passes through the straightening slit and is movably inserted into the power slider. Inside, at the right end of the retracted outer square tube, there is an adjuster. The adjuster includes an adjusting push plate, which is slidably inserted into the inside of the retracted outer square tube. A pushing assembly is located on the left side of the adjusting push plate. The pushing assembly includes a pushing rod, which is movably inserted into the left side of the adjusting push plate. A positioning mechanism is located outside the pushing rod. The positioning mechanism includes a positioning slide plate with a positioning through hole. The pushing rod is slidably inserted into the positioning through hole. A positioning guide is also movably inserted into the positioning slide plate. The selection guide column has its end movably sleeved on the inner wall of the retracted outer square tube. The end of the selection guide column is provided with an offset structure, which includes an offset ratchet gear. The offset ratchet gear is fixedly sleeved on the outside of the selection guide column. The adjusting push plate has a pin structure inside, which includes a pin rod. The pin rod is movably inserted into the adjusting push plate. Limiting structures are provided on both the upper and lower surfaces of the inner cavity of the retracted outer square tube. The limiting structures include limiting thickening plates, which are fixedly connected to the inner wall of the retracted outer square tube.

[0007] Preferably, the power base further includes a power slot, which is located on the left side of the power slider. A power groove is provided on the inner wall of the power slot, and an elastic strip is fixedly embedded inside the power groove. An insertion slit is provided on the left side of the elastic strip. The power base also includes an expansion opening, which is located on the left side of the power slider and communicates with the insertion slit. The right end of the measuring feeler gauge is movably inserted into the expansion opening and the insertion slit.

[0008] Preferably, the replacement component further includes friction-enhancing protrusions, and there are multiple friction-enhancing protrusions. The multiple friction-enhancing protrusions are respectively connected to the upper and lower surfaces of the measuring feeler gauge, and the friction-enhancing protrusions are movably inserted into the interior of the insertion slit.

[0009] Preferably, the replacement component further includes an insert groove, which is formed on the top surface of the inner cavity of the spliced ​​flat tube. A C-shaped elastic element is fixedly embedded inside the insert groove, and the C-shaped elastic element is fastened to the outside of the measuring feeler gauge. The replacement component also includes two locking holes, which are formed on the upper and lower surfaces of the spliced ​​flat tube respectively. A locking bolt is movably inserted into the locking hole on the top surface of the spliced ​​flat tube. The top end of the locking bolt extends to the outside of the retracted inner square tube, and the locking bolt is threadedly engaged with the retracted inner square tube.

[0010] Preferably, the adjuster further includes an adjusting rod, which is fixedly connected to the right side of the adjusting push plate. The right end of the adjusting rod extends to the outside of the retracted outer square tube and is fixedly connected to an adjusting cap. The adjuster also includes an adjusting spring and a limiting pin. The adjusting push plate is connected to the right side of the inner cavity of the retracted outer square tube through the adjusting spring. The limiting pin is fixedly connected to the limiting thickening plate and contacts the adjusting push plate.

[0011] Preferably, the pushing assembly further includes a pushing column cavity, which is opened inside the adjusting push plate. A pushing sliding hole is opened on the left side of the inner cavity of the pushing column cavity. The opening at the left end of the pushing sliding hole is located on the left side of the adjusting push plate. A pushing cylinder is slidably inserted into the inner cavity of the pushing column cavity. The end of the pushing rod passes through the pushing sliding hole and is fixedly connected to the surface of the pushing cylinder.

[0012] Preferably, the positioning mechanism further includes a positioning slide rod, which is slidably inserted into the positioning slide plate. The end of the positioning slide rod is fixedly connected to the inner wall of the retracted outer square tube. The positioning mechanism also includes a reciprocating threaded groove, which is formed on the positioning guide post. The positioning slide plate is threadedly engaged with the reciprocating threaded groove.

[0013] Preferably, the offset structure further includes an offset horizontal bar, which is fixedly connected to the inner wall of the retracted outer square tube. An offset spring is fixedly connected to the bottom surface of the offset horizontal bar, and the offset spring meshes with the offset ratchet in one direction. The offset structure also includes an actuating spring, which is fixedly connected to the left side of the adjusting push plate. An actuating ratchet is fixedly connected to the top surface of the actuating spring at its other end, and the actuating ratchet is adapted to the offset ratchet.

[0014] Preferably, the pin structure further includes a pin cavity, which is located inside the adjusting push plate. A pin slider is slidably inserted into the pin cavity. A constant pressure through hole is provided on the pin slider. A pin sliding hole is provided on the top surface of the inner cavity of the pin cavity. The opening at the top of the pin sliding hole is located on the top surface of the adjusting push plate. The bottom end of the pin rod is slidably inserted into the inside of the pin sliding hole and fixedly connected to the top surface of the pin slider.

[0015] Preferably, the limiting structure further includes a limiting long straight slide groove, an M-shaped variant slide groove, a limiting short straight slide groove, and a reset short groove. The limiting long straight slide groove, the M-shaped variant slide groove, the limiting short straight slide groove, and the reset short groove are connected in sequence. The M-shaped variant slide groove has a first guide slope, a first deflection angle, a second guide slope, a second deflection angle, a third guide slope, and a third deflection angle inside. The top end of the pin rod is movably inserted into the interior of the limiting long straight slide groove.

[0016] Preferably, it also includes a monitoring mechanism, which includes a monitoring vertical plate and a scale marking line. The monitoring vertical plate is fixedly connected to the retracted outer square tube. A monitoring slide rod is fixedly connected to the monitoring vertical plate. A monitoring spring and a U-shaped sliding member are movably sleeved on the outside of the monitoring slide rod. The left side of the U-shaped sliding member is connected to the monitoring vertical plate through the monitoring spring. The U-shaped sliding member is movably fastened to the outside of the retracted outer square tube. A pressure plate is fixedly connected to the bottom surface of the U-shaped sliding member. An indicator arrow is fixedly connected to the top surface of the U-shaped sliding member. The scale marking line is set on the surface of the retracted outer square tube.

[0017] 3. Beneficial effects Compared with the prior art, the advantages of this invention are: 1. By pressing the adjuster, the adjuster moves the push component to the left. The push component applies a leftward thrust to the corresponding power base, causing the power base to move out with the corresponding measuring feeler gauge. The limiting structure restricts the pin structure, which in turn restricts the adjuster and the moved measuring feeler gauge, allowing medical personnel to use it for testing. By pressing the adjuster again, the measuring feeler gauge retracts. Through the offset structure, the adjuster drives the selection mechanism to move during the retraction of the measuring feeler gauge. The moving selection mechanism moves the push component, causing it to move away from the right side of one power base and align with the adjacent power base. This achieves the purpose of selecting the measuring feeler gauge. The selection method is simple, convenient, quick, and easy to operate, improving the practicality of the oral examination device.

[0018] 2. The monitoring mechanism can visually express the resistance between the target measuring feeler gauge and the patient's teeth, allowing examiners to more intuitively know whether the resistance experienced by the measuring feeler gauge meets the standard. This avoids relying too much on tactile experience during the examination process, increases the accuracy of the examination, and improves the practicality of the oral examination device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the internal structure of the retractable component; Figure 3For the present invention Figure 2 Top view of the retracted inner square tube; Figure 4 For the present invention Figure 2 Internal structure diagram of the power base; Figure 5 For the present invention Figure 2 A schematic diagram of the internal structure of the replacement component; Figure 6 For the present invention Figure 2 Schematic diagram of the structure of the adjusting push plate; Figure 7 For the present invention Figure 2 A schematic diagram of the offset structure; Figure 8 For the present invention Figure 2 Right view of the offset structure; Figure 9 For the present invention Figure 8 A schematic diagram of the offset structure; Figure 10 For the present invention Figure 2 Schematic diagram of the internal structure of the adjusting push plate; Figure 11 For the present invention Figure 2 A bottom view of the middle limiting structure.

[0020] Explanation of the labels in the diagram: 1. Retractable assembly; 11. Retractable outer square tube; 12. Retractable inner square tube; 13. Retractable sliding hole; 14. Retractable slider; 15. Retractable spring; 16. Retractable force bar; 17. Straightening plate; 18. Straightening slit; 2. Power base; 21. Power slider; 22. Power slot; 23. Power groove; 24. Elastic bar; 25. Insertion slit; 26. Expansion opening; 3. Replacement assembly; 31. Splicing flat tube; 32. Measuring feeler gauge; 33. 34. Friction-increasing protrusion; 35. Embedded groove; 36. C-shaped elastic element; 37. Locking hole; 48. Locking bolt; 49. Adjuster; 40. Adjusting rod; 41. Adjusting cap; 42. Adjusting push plate; 43. Adjusting spring; 44. Limiting pin; 50. Pushing assembly; 51. Pushing column cavity; 52. Pushing sliding hole; 53. Pushing cylinder; 54. Pushing long rod; 61. Positioning mechanism; 62. Positioning slide bar; 63. Positioning guide post; 64. 4. Reciprocating threaded groove; 65. Selection through hole; 7. Offset structure; 71. Offset ratchet; 72. Offset crossbar; 73. Offset spring bar; 74. Actuating spring bar; 75. Actuating ratchet; 8. Pin structure; 81. Pin cavity; 82. Pin slider; 83. Constant pressure through hole; 84. Pin sliding hole; 85. Pin rod; 9. Limiting structure; 901. Limiting thickened plate; 902. Limiting long straight slide groove; 903. M-type variable slide groove; 904. 905. First guide ramp; 906. Second guide ramp; 907. Second guide ramp; 908. Third guide ramp; 909. Third guide ramp; 910. Limiting short straight slide groove; 911. Reset short groove; 10. Monitoring mechanism; 101. Monitoring vertical plate; 102. Monitoring slide rod; 103. Monitoring spring; 104. U-shaped sliding component; 105. Acupressure plate; 106. Indicating arrow; 107. Marking scale line. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 2An oral examination device includes a retractable assembly 1, which comprises a retractable outer square tube 11. A retractable inner square tube 12 is fixedly inserted into the left side of the retractable outer square tube 11. Retractable sliding holes 13 are provided on both the upper and lower sides of the retractable inner square tube 12. A retractable slide 14 is slidably inserted into the retractable sliding hole 13. A retractable spring 15 is fixedly connected to the right side of the retractable slide 14. A retractable force strip 16 is fixedly connected to the other end of the retractable spring 15. The retractable force strip 16 is fixedly connected to the inner wall of the retractable outer square tube 11. Please refer to [reference needed]. Figure 2 and 4 One end of the retractable slider 14 extends into the interior of the retractable inner square tube 12 and is provided with a power base 2. The power base 2 includes a power slider 21, which is fixedly connected to the end of the retractable slider 14. The power slider 21 is slidably inserted into the interior of the retractable inner square tube 12. A straightening plate 17 located at its left end is fixedly connected to the inner wall of the retractable inner square tube 12. The straightening plate 17 has multiple straightening slits 18, and a measuring feeler gauge 32 is inserted into each straightening slit 18. Please refer to [link / reference]. Figure 4 and 5 The left end of the retracted inner square tube 12 is provided with a replacement component 3, which includes a splicing flat tube 31. The splicing flat tube 31 is movably inserted into the left end of the retracted inner square tube 12. A measuring feeler gauge 32 is slidably inserted inside the splicing flat tube 31. The right end of the measuring feeler gauge 32 passes through the straightening slit 18 and is movably inserted into the inside of the power slider 21. Please refer to [link / reference]. Figure 2 An adjuster 4 is provided at the right end of the retracted outer square tube 11. The adjuster 4 includes an adjusting push plate 43, which is slidably inserted into the interior of the retracted outer square tube 11. Please refer to [link / reference]. Figure 6 A pushing component 5 is provided on the left side of the adjusting push plate 43. The pushing component 5 includes a pushing rod 54, which is movably inserted into the left side of the adjusting push plate 43. Please refer to [link / reference]. Figure 8 The push rod 54 is externally equipped with a positioning mechanism 6, which includes a positioning slide plate 62. The positioning slide plate 62 has a positioning through hole 65. The push rod 54 is slidably inserted into the positioning through hole 65. A positioning guide post 63 is also movably inserted into the positioning slide plate 62. The end of the positioning guide post 63 is movably sleeved on the inner wall of the retracted outer square tube 11. The end of the positioning guide post 63 has an offset structure 7. Please refer to [link / reference]. Figure 9 The offset structure 7 includes an offset ratchet 71, which is fixedly sleeved on the outside of the selection guide post 63. (See also...) Figure 10 The adjusting push plate 43 has a pin structure 8 inside, which includes a pin rod 85. The pin rod 85 is movably inserted into the adjusting push plate 43. Please refer to [link / reference]. Figure 2 Limiting structures 9 are provided on both the upper and lower surfaces of the inner cavity of the retracted outer square tube 11. Please refer to [the relevant documentation]. Figure 10-11The limiting structure 9 includes a limiting thickening plate 901, which is fixedly connected to the inner wall of the retracted outer square tube 11.

[0023] Please see Figure 4 The power base 2 also includes a power slot 22, which is located on the left side of the power slider 21. A power groove 23 is formed on the inner wall of the power slot 22, and an elastic strip 24 is fixedly embedded inside the power groove 23. An insertion slit 25 is formed on the left side of the elastic strip 24. The power base 2 also includes an expansion opening 26, which is located on the left side of the power slider 21 and communicates with the insertion slit 25. The right end of the measuring gauge 32 is movably inserted into the expansion opening 26 and the insertion slit 25. The elasticity of the elastic strip 24 is used to apply pressure to the measuring gauge 32, increasing the displacement resistance of the measuring gauge 32. This resistance is greater than the resistance between the measuring gauge 32 and the patient's teeth, ensuring that the measuring gauge 32 does not disengage from the oral examination device during interdental measurement. Please refer to [link to relevant documentation]. Figure 3 There are seven measuring feeler gauges 32, and the thickness of the seven measuring feeler gauges 32 increases sequentially. There are seven power sliders 21, and the seven power sliders 21 correspond one-to-one with the seven measuring feeler gauges 32. The push rod 54 is adapted to the power slider 21. When the ratchet 75 is activated, the offset ratchet 71 is rotated once, which will move the end of the push rod 54 from the right side of one power slider 21 to the right side of another adjacent power slider 21.

[0024] Please see Figure 4 The replacement component 3 also includes friction-enhancing protrusions 33. There are multiple friction-enhancing protrusions 33, which are respectively connected to the upper and lower surfaces of the measuring feeler gauge 32. The friction-enhancing protrusions 33 are movably inserted into the inside of the insertion slit 25, further increasing the displacement resistance of the measuring feeler gauge 32. This resistance is much greater than the resistance between the measuring feeler gauge 32 and the patient's teeth, ensuring that the measuring feeler gauge 32 will not detach from the oral examination device during the measurement of interdental spaces.

[0025] Please see Figure 5The replacement component 3 also includes an insert groove 34, which is formed on the top surface of the inner cavity of the spliced ​​flat tube 31. A C-shaped elastic element 35 is fixedly installed inside the insert groove 34. The C-shaped elastic element 35 is fastened to the outside of the measuring feeler gauge 32. The elastic force of the C-shaped elastic element 35 applies pressure to the measuring feeler gauge 32, which can further increase the resistance to the measuring feeler gauge 32 and prevent the measuring feeler gauge 32 from falling off. On the other hand, it provides a certain clamping force for the measuring feeler gauge 32 so that when the replacement component 3 is disassembled, the measuring feeler gauge 32 can be clamped off. Ruler 32 will not slide out of the splicing flat tube 31. Replacement component 3 also includes locking holes 36. There are two locking holes 36, which are respectively opened on the upper and lower surfaces of the splicing flat tube 31. A locking bolt 37 is movably inserted into the locking hole 36 on the top surface of the splicing flat tube 31. The top end of the locking bolt 37 extends to the outside of the retracted inner square tube 12. The locking bolt 37 is threadedly engaged with the retracted inner square tube 12 to fix the splicing flat tube 31 and the retracted inner square tube 12 together, which facilitates the installation and disassembly of replacement component 3.

[0026] Please see Figure 2 The adjuster 4 also includes an adjusting rod 41, which is fixedly connected to the right side of the adjusting push plate 43. The right end of the adjusting rod 41 extends to the outside of the retracted outer square tube 11 and is fixedly connected to an adjusting cap 42, which facilitates the adjustment of the oral examination device. The adjuster 4 also includes an adjusting spring 44 and a limiting pin 45. The adjusting push plate 43 is connected to the right side of the inner cavity of the retracted outer square tube 11 through the adjusting spring 44, which is used to reset the adjusting push plate 43. The limiting pin 45 is fixedly connected to the limiting thickened plate 901 and contacts the adjusting push plate 43, which is used to limit the adjusting push plate 43 so that the pushing rod 54 will not be pulled out from the selection through hole 65.

[0027] Please see Figure 6 The pushing component 5 also includes a pushing column cavity 51, which is opened inside the adjusting push plate 43. A pushing sliding hole 52 is opened on the left side of the inner cavity of the pushing column cavity 51. The opening at the left end of the pushing sliding hole 52 is located on the left side of the adjusting push plate 43. A pushing cylinder 53 is slidably inserted into the inside of the pushing column cavity 51. The end of the pushing rod 54 passes through the pushing sliding hole 52 and is fixedly connected to the surface of the pushing cylinder 53, so that the pushing rod 54 can move back and forth in the direction perpendicular to the paper plane.

[0028] Please see Figure 8The positioning mechanism 6 also includes a positioning slide rod 61, which is slidably inserted into the positioning slide plate 62. The end of the positioning slide rod 61 is fixedly connected to the inner wall of the retracted outer square tube 11 for guiding the positioning slide plate 62. The positioning mechanism 6 also includes a reciprocating threaded groove 64, which is formed on the positioning guide post 63. The positioning slide plate 62 is threadedly engaged with the reciprocating threaded groove 64 to drive the positioning slide plate 62 to move. One end of the positioning guide post 63 extends to the outside of the retracted outer square tube 11 and is fixedly equipped with a rotating cap, so that the testing personnel can actively rotate the positioning guide post 63 to reset the positioning slide plate 62. A retaining ring is provided on the positioning slide rod 61 to limit the extreme position of the positioning slide plate 62.

[0029] Please see Figure 7-9 The offset structure 7 also includes an offset crossbar 72, which is fixedly connected to the inner wall of the retracted outer square tube 11. An offset spring 73 is fixedly connected to the bottom surface of the offset crossbar 72. The offset spring 73 engages with the offset ratchet 71 in one direction, so that the offset ratchet 71 can only rotate in one direction. Please refer to [link to relevant documentation]. Figure 2 and 7 The offset structure 7 also includes an actuating spring 74, which is fixedly connected to the left side of the adjusting push plate 43. An actuating ratchet 75 is fixedly connected to the top surface of the actuating spring 74 at its other end. The actuating ratchet 75 is adapted to the offset ratchet 71 and is used to drive the offset ratchet 71 to rotate. There is no limit to one actuating ratchet 75.

[0030] Please see Figure 10 The pin structure 8 also includes a pin cavity 81, which is located inside the adjusting push plate 43. A pin slider 82 is slidably inserted into the pin cavity 81. A constant pressure through hole 83 is provided on the pin slider 82. A pin sliding hole 84 is provided on the top surface of the inner cavity of the pin cavity 81. The opening at the top of the pin sliding hole 84 is located on the top surface of the adjusting push plate 43. The bottom end of the pin rod 85 is slidably inserted into the pin sliding hole 84 and fixedly connected to the top surface of the pin slider 82 to limit the position of the adjusting push plate 43.

[0031] Please see Figure 11 The limiting structure 9 also includes a limiting long straight slide groove 902, an M-shaped variable slide groove 903, a limiting short straight slide groove 910, and a reset short groove 911. The limiting long straight slide groove 902, the M-shaped variable slide groove 903, the limiting short straight slide groove 910, and the reset short groove 911 are connected in sequence. The M-shaped variable slide groove 903 has a first guide slope 904, a first turning angle 905, a second guide slope 906, a second turning angle 907, a third guide slope 908, and a third turning angle 909 inside. The top end of the pin rod 85 is movably inserted into the limiting long straight slide groove 902 to limit the position of the adjusting push plate 43.

[0032] Please see Figure 1 It also includes a monitoring mechanism 10, which includes a monitoring vertical plate 101 and a scale line 107. The monitoring vertical plate 101 is fixedly connected to the retracted outer square tube 11. A monitoring slide rod 102 is fixedly connected to the monitoring vertical plate 101. A monitoring spring 103 and a U-shaped sliding member 104 are movably sleeved on the outside of the monitoring slide rod 102. The left side of the U-shaped sliding member 104 is connected to the monitoring vertical plate 101 through the monitoring spring 103. The U-shaped sliding member 104 is movably fastened to the outside of the retracted outer square tube 11. A pressure plate 105 is fixedly connected to the bottom surface of the moving part 104, and an indicator arrow 106 is fixedly connected to the top surface of the U-shaped sliding part 104. The marking scale line 107 is set on the surface of the retracted outer square tube 11 to monitor the magnitude of the resistance encountered by the feeler gauge 32. The elastic coefficient of the retracted spring 15 is much greater than that of the monitoring spring 103. The monitoring vertical plate 101 can be set on the bottom surface of the retracted outer square tube 11. The U-shaped sliding part 104 can be a flat block to avoid the influence of the rotating cap on the monitoring mechanism 10.

[0033] Working principle: First, pinch the retracted outer square tube 11, then apply leftward pressure to the adjusting cap 42. Next, the adjusting cap 42 moves the adjusting rod 41 to the left. Then, the adjusting rod 41 moves the adjusting push plate 43 to the left. The adjusting push plate 43 pulls the adjusting spring 44 and moves the pushing rod 54 to the left, simultaneously moving the adjusting push plate 43 to the left, along with the trigger spring 74. Then, the trigger spring 74 moves the trigger ratchet 75 to the left. The trigger ratchet 75 then contacts the offset ratchet 71, and the offset spring 73 engages with the offset ratchet 71 in one direction, preventing the offset ratchet 71 from rotating clockwise. The offset ratchet 71 then applies downward pressure to the trigger spring 74 through the trigger ratchet 75. The end of the trigger spring 74 then bends downward, and the trigger ratchet 75... 5. After passing the offset ratchet 71, the trigger spring 74, under its own elastic force, flips upward with the trigger ratchet 75 until the trigger spring 74 returns to a straight state. Then, the left end of the push rod 54 contacts the right side of the first power slider 21 and applies a leftward pushing force to it. Then, the power slider 21 moves to the left. Then, the power slider 21 pulls the retraction spring 15 through the retraction slide 14. Then, the retraction spring 15 is elastically stretched, and the elastic potential energy increases. Then, the first power slider 21 moves to the left with the corresponding measuring feeler gauge 32. Then, the measuring feeler gauge 32 extends to the left. During this process, the adjusting push plate 43 slides to the left through the pin sliding hole 84 with the pin rod 85 in the limiting long straight slide groove 902. Then, the pin rod 85 enters the M-shaped variable... The sliding groove 903 contacts the first guide slope 904, which then guides the pin 85. The pin 85 then slides along the first guide slope 904 into the first reversing angle 905. Simultaneously, the pin 85, along with the pin slider 82, slides inside the pin cavity 81. Afterwards, the adjusting cap 42 is released, and the adjusting push plate 43, under the elastic pull of the adjusting spring 44, returns a short distance to the right. Then, the adjusting push plate 43, along with the pin 85, moves from the first reversing angle 905 to the right and onto the second guide slope 906. The pin 85 then slides along the second guide slope 906 into the second reversing angle 907. During this process, the retractable slider 14 is elastically pulled by the retractable spring 15. Under the action of force, the measuring feeler gauge 32 moves a short distance to the right via the power base 2 until the power slider 21 contacts the end of the push rod 54. Then, the retractable outer square tube 11 is pinched and the end of the measuring feeler gauge 32 is inserted into the patient's interdental space. Next, the acupressure plate 105 is pinched and the retractable outer square tube 11 is released. Then, a rightward pushing force is applied to the acupressure plate 105. The acupressure plate 105 then moves to the right along with the U-shaped slider 104. Next, the U-shaped slider 104 pulls the monitoring spring 103. Then, the monitoring spring 103 stretches elastically and applies a rightward pulling force to the monitoring vertical plate 101. Then, the monitoring vertical plate 101 applies a rightward pulling force to the retractable outer square tube 11. Then, the retractable outer square tube 11 is pulled to the right by the retraction force bar 16 and the retraction spring 15.Then, the retracting spring 15 pulls the retracting slide 14 to the right, and the retracting slide 14 moves the power slider 21 to the right. Then, the power slider 21 moves the measuring feeler gauge 32 to the right. The resistance experienced by the measuring feeler gauge 32 is related to the elastic elongation of the monitoring spring 103. Then, the indicator arrow 106 remains to the left of the scale line 107 during the process of the measuring feeler gauge 32 sliding out of the tooth gap, indicating that the measuring feeler gauge 32 is too thin and needs to be replaced with a thicker measuring feeler gauge 32. Then, the adjusting cap 42 is pressed, and then the adjusting push plate 43 moves the pin rod 85 from the second deflection angle 907 to the left and moves to the third guide slope 908. Then, the pin 85, guided by the third guide slope 908, enters the third reversing angle 909. Next, the adjusting cap 42 is released. Then, under the elastic tension of the adjusting spring 44, the adjusting push plate 43 moves the pin 85 from the third reversing angle 909 to the right and into the limiting short straight slide groove 910. The pin 85 then slides from the limiting short straight slide groove 910 to the reset short slide groove 911. Next, the pin 85 moves from the reset short slide groove 911 into the limiting long straight slide groove 902. Then, the pin 85 moves to the right within the limiting long straight slide groove 902. Finally, the adjusting push plate 43 contacts the limiting stop pin 45, causing the pin 85 and the adjusting push plate 43 to... The movement stops. During this process, the corresponding retractable slider 14, under the action of the retractable spring 15, moves the power slider 21 to the right. Then, the power slider 21 moves the measuring feeler gauge 32 to the right. After that, the power slider 21 returns to its rightward position. Then, the end of the push rod 54 separates from the power slider 21. Next, the adjusting push plate 43 moves to the right via the trigger spring 74, which in turn moves the trigger ratchet 75 to the right. The trigger ratchet 75 engages with the offset ratchet 71 in one direction. Then, the offset ratchet 71 rotates counterclockwise. Then, the offset ratchet 71 rotates the selection guide post 63. Then, the selection guide post 63 engages with the selection slide plate 62 through the reciprocating threaded groove 64. The push rod 54 moves vertically inwards along the paper for a certain distance, then triggers the ratchet 75 to separate from the offset ratchet 71, causing the selection slide plate 62 to stop moving. At this point, the end of the push rod 54 aligns with the second power slider 21, completing one test. Next, press the adjustment cap 42 to bring out the measuring feeler gauge 32 corresponding to the second power slider 21. Use this measuring feeler gauge 32 to test the interdental gap. Repeat the above process until the indicator arrow 106 is positioned between the two marked graduation lines 107 during the sliding of the measuring feeler gauge 32 from the interdental gap. The thickness of the measuring feeler gauge 32 at this point is the result of the interdental gap test.

[0034] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto; any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. An oral examination device comprising a retraction assembly (1), characterized in that: The retraction assembly (1) includes a retraction outer square tube (11), a retraction inner square tube (12) fixedly inserted into the left side of the retraction outer square tube (11), retraction sliding holes (13) are provided on both the upper and lower sides of the retraction inner square tube (12), a retraction slide plate (14) is slidably inserted into the retraction sliding hole (13), a retraction spring (15) is fixedly connected to the right side of the retraction slide plate (14), a retraction force strip (16) is fixedly connected to the other end of the retraction spring (15), the retraction force strip (16) is fixedly connected to the inner wall of the retraction outer square tube (11), one end of the retraction slide plate (14) extends into the interior of the retraction inner square tube (12) and is provided with a power base (2), the power base (2) includes a power slider (21), and the power... The slider (21) is fixedly connected to the end of the retractable slider (14). The power slider (21) is slidably inserted into the interior of the retractable inner square tube (12). A straightening plate (17) located at its left end is fixedly connected to the inner wall of the retractable inner square tube (12). A straightening slit (18) is provided on the straightening plate (17). A replacement component (3) is provided at the left end of the retractable inner square tube (12). The replacement component (3) includes a splicing flat tube (31). The splicing flat tube (31) is movably inserted into the left end of the retractable inner square tube (12). A measuring feeler gauge (32) is slidably inserted into the interior of the splicing flat tube (31). The right end of the measuring feeler gauge (32) passes through the straightening slit (18) and is movably inserted into the interior of the power slider (21). The retractable outer square tube (11) An adjuster (4) is provided at the right end. The adjuster (4) includes an adjusting push plate (43), which is slidably inserted into the inside of the retracted outer square tube (11). A pushing component (5) is provided on the left side of the adjusting push plate (43). The pushing component (5) includes a pushing rod (54), which is movably inserted into the left side of the adjusting push plate (43). A positioning mechanism (6) is provided outside the pushing rod (54). The positioning mechanism (6) includes a positioning slide plate (62), which has a positioning through hole (65). The pushing rod (54) is slidably inserted into the inside of the positioning through hole (65). A positioning guide post (63) is also movably inserted into the positioning slide plate (62). The end of the guide post (63) is movably sleeved on the inner wall of the retracted outer square tube (11). The end of the positioning guide post (63) is provided with an offset structure (7). The offset structure (7) includes an offset ratchet gear (71). The offset ratchet gear (71) is fixedly sleeved on the outside of the positioning guide post (63). The inside of the adjusting push plate (43) is provided with a pin structure (8). The pin structure (8) includes a pin rod (85). The pin rod (85) is movably inserted into the adjusting push plate (43). The upper and lower surfaces of the inner cavity of the retracted outer square tube (11) are provided with limiting structures (9). The limiting structure (9) includes a limiting thickening plate (901). The limiting thickening plate (901) is fixedly connected to the inner wall of the retracted outer square tube (11).

2. An oral examination device according to claim 1, wherein: The power base (2) also includes a power slot (22), which is located on the left side of the power slider (21). A power groove (23) is provided on the inner wall of the power slot (22). An elastic strip (24) is fixedly embedded inside the power groove (23). An insertion slit (25) is provided on the left side of the elastic strip (24). The power base (2) also includes an expansion opening (26), which is located on the left side of the power slider (21) and communicates with the insertion slit (25). The right end of the measuring feeler gauge (32) is movably inserted into the expansion opening (26) and the insertion slit (25).

3. An oral examination device according to claim 2, wherein: The replacement component (3) also includes friction-enhancing protrusions (33), and there are multiple friction-enhancing protrusions (33). The multiple friction-enhancing protrusions (33) are respectively connected to the upper and lower surfaces of the measuring feeler gauge (32), and the friction-enhancing protrusions (33) are movably inserted into the interior of the insertion slit (25).

4. An oral examination device according to claim 1, wherein: The replacement component (3) also includes an insert groove (34), which is opened on the top surface of the inner cavity of the spliced ​​flat tube (31). A C-shaped elastic element (35) is fixedly installed inside the insert groove (34). The C-shaped elastic element (35) is fastened to the outside of the measuring feeler gauge (32). The replacement component (3) also includes a locking hole (36). There are two locking holes (36). The two locking holes (36) are opened on the upper and lower surfaces of the spliced ​​flat tube (31) respectively. A locking bolt (37) is movably inserted into the locking hole (36) on the top surface of the spliced ​​flat tube (31). The top end of the locking bolt (37) extends to the outside of the retracted inner square tube (12). The locking bolt (37) is threadedly engaged with the retracted inner square tube (12).

5. An oral examination device according to claim 1, wherein: The regulator (4) also includes an adjusting rod (41), which is fixedly connected to the right side of the adjusting push plate (43). The right end of the adjusting rod (41) extends to the outside of the retracted outer square tube (11) and is fixedly connected to an adjusting cap (42). The regulator (4) also includes an adjusting spring (44) and a limiting pin (45). The adjusting push plate (43) is connected to the right side of the inner cavity of the retracted outer square tube (11) through the adjusting spring (44). The limiting pin (45) is fixedly connected to the limiting thickening plate (901) and contacts the adjusting push plate (43).

6. An oral examination device according to claim 1, wherein: The pushing assembly (5) further includes a pushing column cavity (51), which is located inside the adjusting push plate (43). A pushing sliding hole (52) is provided on the left side of the inner cavity of the pushing column cavity (51). The opening at the left end of the pushing sliding hole (52) is located on the left side of the adjusting push plate (43). A pushing cylinder (53) is slidably inserted into the inside of the pushing column cavity (51). The end of the pushing rod (54) passes through the pushing sliding hole (52) and is fixedly connected to the surface of the pushing cylinder (53).

7. An oral examination device according to claim 1, wherein: The positioning mechanism (6) further includes a positioning slide rod (61), which is slidably inserted into the positioning slide plate (62). The end of the positioning slide rod (61) is fixedly connected to the inner wall of the retracted outer square tube (11). The positioning mechanism (6) further includes a reciprocating threaded groove (64), which is opened on the positioning guide post (63). The positioning slide plate (62) is threadedly engaged with the reciprocating threaded groove (64).

8. The oral examination device according to claim 1, characterized in that: The offset structure (7) also includes an offset crossbar (72), which is fixedly connected to the inner wall of the retracted outer square tube (11). An offset spring bar (73) is fixedly connected to the bottom surface of the offset crossbar (72). The offset spring bar (73) meshes with the offset ratchet gear (71) in one direction. The offset structure (7) also includes an actuating spring bar (74), which is fixedly connected to the left side of the adjusting push plate (43). An actuating ratchet tooth (75) is fixedly connected to the top surface of the actuating spring bar (74) at its other end. The actuating ratchet tooth (75) is adapted to the offset ratchet gear (71).

9. An oral examination device according to any one of claims 1-8, characterized in that: The pin structure (8) further includes a pin cavity (81), which is located inside the adjusting push plate (43). A pin slider (82) is slidably inserted into the pin cavity (81). A constant pressure through hole (83) is provided on the pin slider (82). A pin sliding hole (84) is provided on the top surface of the inner cavity of the pin cavity (81). The opening at the top of the pin sliding hole (84) is located on the top surface of the adjusting push plate (43). The bottom end of the pin rod (85) is slidably inserted into the inside of the pin sliding hole (84) and fixedly connected to the top surface of the pin slider (82).

10. An oral examination device according to claim 9, wherein: The limiting structure (9) further includes a limiting long straight slide groove (902), an M-shaped variable slide groove (903), a limiting short straight slide groove (910), and a reset short groove (911). The limiting long straight slide groove (902), the M-shaped variable slide groove (903), the limiting short straight slide groove (910), and the reset short groove (911) are connected in sequence. The M-shaped variable slide groove (903) has a first guide slope (904), a first deflection angle (905), a second guide slope (906), a second deflection angle (907), a third guide slope (908), and a third deflection angle (909) inside. The top end of the pin rod (85) is movably inserted into the inside of the limiting long straight slide groove (902).

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